CN110817607B - Winch for winding and unwinding offshore cable - Google Patents

Abstract

The invention relates to the technical field of offshore cable winding and unwinding equipment, and discloses a winch for winding and unwinding offshore cables, which comprises a winding reel, a turntable and a bracket, wherein the turntable is fixed at two ends of the winding reel, the winding reel is rotatably arranged on the bracket, a driving device and a braking device are arranged on the bracket, the driving device is movably arranged in the bracket, the driving device is contacted with the outer circumferential wall of the turntable during driving, the bracket is of a semi-enclosed bracket structure, and an included angle between an inclined supporting rod at the open end of the bracket and the vertical direction is 10-20 degrees. The device adjusts the relative position between the driving device and the turntable by arranging the position adjusting component, so that the adjustment is more flexible and convenient, and meanwhile, certain electric energy sources can be saved. Simultaneously, set the contained angle with diagonal bracing pole and vertical direction on the support to 15, this support can be more stable, also be difficult for appearing the condition of turnover on the deck. In addition, the speed of the turntable can be controlled at any time by arranging a brake device.

Description

Winch for winding and unwinding offshore cable

Technical Field

The invention relates to the technical field of offshore cable winding and unwinding equipment, in particular to a winch for offshore cable winding and unwinding.

Background

Marine seismic exploration is a method of conducting seismic exploration on the ocean using an exploration vessel. When the device works, the wave detector and the cable are towed in the sea water at a certain depth behind the ship to detect the characteristics of the seismic waves, so that the structures of the earthquake stratum and the seabed can be obtained, and the device plays a great role in the petroleum and natural gas exploration process. The marine seismic exploration towing winch is one of important components in marine seismic exploration and is used for winding and unwinding cables in the marine seismic exploration operation process.

At present, a cable winch used in marine seismic exploration has a part of cable car with a simple structure and no driving device, and a turntable is required to be manually rotated to realize the winding and unwinding of cables, so that the cable winch is labor-consuming and inconvenient to operate. In addition, a part of cable winch is provided with a driving motor to drive the turntable to rotate, and the driving motor is directly arranged on one side of the turntable to drive the turntable in the actual installation and use process. The cable winch disclosed by the cable arrangement device of the deep sea ocean scientific investigation traction winch is disclosed in China with the application number of CN201521033163.6, and the cable winch is installed in a mode of directly connecting a driving motor with a rotating shaft of the winch, so that the cable winch not only occupies large space, but also is single in structure driving mode, and when the winch rotates with small torque, the cable winch is driven by the driving motor and is not more flexible and convenient to operate manually, and more electric power is consumed.

In addition, the existing cable winch is not provided with a special braking device, the rotating shaft of the driving motor is generally directly connected with the rotating shaft of the winding reel, the speed of the winch is regulated by controlling the speed of the driving motor, but the mass is increased due to the fact that more cables are wound on the winding reel in the later period of the long-term cable winding, the rotating inertia of the winch is large, the braking force born by the motor is large when the winch needs to be braked, when an emergency needs to be braked in time, the motor shaft and the internal components of the motor bear large torsional shearing reaction force when the motor is braked, the selection standard of the driving motor is severe, the cost of the selected driving motor is high, and therefore the use cost of equipment is increased; and because the motor provides great braking force to brake when braking and reducing speed, the motor is easy to be in a full-load or overload state, so that the motor is easy to damage, and the service life of the motor is reduced.

In addition, when the cable winch is required to be fixed on a ship deck during operation, the cable winch is generally required to be fixed through welding because rust can not be directly fixed through screws for preventing corrosion on the deck, but the winch is inconvenient to move and adjust to be inconvenient for later use after welding and fixing, and the existing winch support is easy to overturn when not fixed, so that the cable winch is inconvenient to use.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide a winch for winding and unwinding an offshore cable, a driving device of the winch can flexibly drive a winch turntable, the winch is not easy to overturn, and a braking device directly used for adjusting the rotating speed of the turntable is arranged.

In order to achieve the above object, the present invention provides the following technical solutions:

The winch for winding and unwinding the offshore cable comprises a winding reel, a turntable and a support, wherein the turntable is fixedly arranged at two ends of the winding reel, the winding reel is rotatably arranged on the support, and the winch is characterized in that a driving device and a braking device are arranged on the support, the driving device is movably arranged inside the support, the driving device is contacted with the outer circumferential wall of the turntable when the winch is driven, the support is of a semi-enclosed support structure, and an included angle between an inclined support rod at the open end of the support and the vertical direction is 10-20 degrees.

Among the above-mentioned technical scheme, drive arrangement can drive the carousel to drive arrangement activity sets up inside the support, can in time adjust drive arrangement's position according to the use needs, and in time adjust the carousel through stopping the device when slowing down or stopping need, set up the inclined angle of inclined strut and vertical direction to 10-20 in addition and can be more stable, be difficult for the turnover.

In the invention, further, the included angle between the inclined support rod and the vertical direction is 15 degrees.

In the technical scheme, the included angle between the inclined support rod and the vertical direction is set to be 15 degrees, and the stabilizing effect is best.

In the invention, further, the brake device comprises a hand brake device and/or a foot brake device.

According to the technical scheme, the hand brake device and/or the foot brake device are/is arranged respectively, and can be selected and assembled according to actual use requirements in the actual use process.

In the invention, further, the driving device comprises a driving motor, a speed reducer and a driving wheel, wherein the speed reducer is connected between the driving motor and the driving wheel, and the speed reducer is connected and arranged on the bracket through a position adjusting component.

In the technical scheme, the position of the driving device can be timely adjusted through the position adjusting component, so that the driving device can be flexibly applied in actual use.

In the invention, further, the position adjusting assembly comprises a fixed bottom plate, a top seat and a pushing mechanism, wherein the top seat is arranged on the fixed bottom plate in a sliding manner, the pushing mechanism comprises a connecting block, a supporting block and an adjusting screw, the adjusting screw is rotatably arranged on the supporting block, a threaded part of the adjusting screw is rotatably arranged in the connecting block, the connecting block is fixedly arranged on the top seat, and the supporting block is fixedly arranged on the fixed bottom plate.

In the above technical scheme, the fixed bottom plate is arranged on the bracket, the footstock is arranged on the fixed bottom plate in a sliding way, and the footstock and the fixed bottom plate are connected by the pushing mechanism and used for adjusting the relative position between the footstock and the fixed bottom plate.

In the invention, further, the hand brake device comprises a mounting frame, a pushing shaft, a pressing block, a locking mechanism and an adjusting hand wheel, wherein the mounting frame is fixedly arranged at the top of the bracket, the pushing shaft is rotatably arranged on the mounting frame, the position of the pressing block corresponds to one group of turntables, the pressing block is rotatably arranged at one end, close to the turntables, of the pushing shaft, and one end, far away from the turntables, of the pushing shaft is connected with the locking mechanism and the adjusting hand wheel.

In the technical scheme, the hand brake device is arranged to directly regulate the speed of the turntable, so that damage to the driving motor during deceleration is reduced.

In the invention, further, the locking mechanism comprises a locking nut and a plurality of groups of rotating hand rods, wherein the plurality of groups of rotating hand rods are uniformly distributed and fixed on the side wall of the locking nut, the locking nut is rotatably arranged on the pushing shaft, and the locking nut is tightly abutted to the side wall of the mounting frame when the locking is needed.

In the technical scheme, the locking mechanism is used for locking the pushing shaft, so that the pushing shaft is prevented from loosening and rotating due to vibration during operation, and the compression block is retracted to further relieve the deceleration limitation on the turntable.

In the invention, further, the foot brake device comprises a locking component and a brake component, wherein the locking component is adjustably and fixedly arranged on the brake component and used for locking the working state of the brake component.

In the technical scheme, the brake assembly is used for braking the rotating disc, and the locking assembly is used for locking the gesture of the brake assembly so as to ensure the brake function of the brake assembly for a long time.

In the invention, further, the brake assembly comprises a brake bottom plate, a brake foot rest, a brake protruding block and a limit seat, wherein the limit seat is fixedly arranged on the brake bottom plate, the brake foot rest is hinged on the brake bottom plate, a limit shaft on the limit seat is arranged on the brake foot rest in a sliding penetrating manner, the brake protruding block is hinged on the brake foot rest, a return spring is arranged between the brake foot rest and the brake protruding block and between the brake foot rest and the brake bottom plate, and a reverse-ejection limit mechanism is arranged between the brake protruding block and the brake foot rest.

According to the technical scheme, the braking protruding blocks hinged to the braking foot rest can be gradually pressed against the outer side circumferential wall of the turntable by stepping on the braking foot rest, so that the turntable is braked or decelerated by friction.

In the invention, further, the locking assembly comprises a locking base, a locking spring and a locking foot rest, wherein the locking foot rest is adjustably hinged on the locking base, the locking spring is connected between the locking base and the locking foot rest, a limiting shaft on the locking base is slidably arranged on the locking foot rest in a penetrating mode, and a bayonet is formed in the locking foot rest.

According to the technical scheme, the locking assembly locks and fixes the brake foot rest through the bayonet arranged on the locking foot rest, and the brake assembly can keep a brake state for a long time through the locking of the locking assembly. And the position of the locking component can be adjusted, so that the locking of the braking component in different braking angles is realized.

Compared with the prior art, the invention has the beneficial effects that:

The device can realize the winding and unwinding work of the winch and the cable by arranging the driving device, so that the manual operation is laborious when the load is large, and the turntable is driven to rotate by the driving motor when the driving device is required to continuously drive for a long time, thereby saving the manpower and improving the working efficiency. In addition, the relative position between the driving device and the turntable is adjusted by the position adjusting assembly, when the driving is needed, the driving wheel is in contact with the outer circumferential wall of the turntable, and when the driving is not needed, the driving motor is far away from the turntable and can be adjusted manually, so that the adjustment is more flexible and convenient, and meanwhile, certain electric energy can be saved.

Meanwhile, the included angle between the inclined support rod and the vertical direction on the support is set to be 10-20 degrees, and most preferably 15 degrees, so that the support arranged in the form is more stable, and the situation that the support is turned over is difficult to occur even if the support is not welded and fixed on the deck, and therefore the support is convenient for moving and adjusting of a winch and is difficult to turn over on the deck.

In addition, through being provided with the stopping device on the support, when meet the sudden situation and need to stop under the state that the winch has great torque or rotational speed in the course of the work, can be earlier through the controller outage for driving motor makes driving motor be in the free rotation state of no driving force, or separate driving wheel and carousel through position adjustment subassembly, then stop the carousel through stopping device is direct, from this can avoid stopping the carousel through driving motor directly when the torque is great, but stop the carousel by stopping device is direct, thereby, can reduce the selection standard to the driving motor who uses, and then reduce the manufacturing use cost of equipment, simultaneously, also avoided stopping the condition that makes driving motor overload because the torque of winch is too big when the winch has great inertia through driving motor direct brake Avast heaving, thereby reduced the harm to driving motor when stopping, the life of extension motor, the fault rate is reduced. And the brake device comprises a hand brake device and/or a foot brake device, and can be flexibly assembled according to actual use requirements.

Drawings

Fig. 1 is a schematic view of the general structure (with one side shield removed) of a first embodiment of the present invention.

Fig. 2 is a schematic diagram of the overall structure of the driving device in the present invention.

Fig. 3 is an exploded view of the position adjustment assembly of the present invention.

Fig. 4 is an exploded view of the hand brake device according to the present invention.

Fig. 5 is an enlarged view of an exploded structure at a in fig. 1.

FIG. 6 is a schematic diagram of electrical control in the present invention.

Fig. 7 is a schematic general structure of a second embodiment of the present invention.

Fig. 8 is a schematic view of the general structure (front) of the foot brake of the present invention.

Fig. 9 is a schematic view of the general structure (back) of the foot brake of the present invention.

FIG. 10 is a schematic view of a connection structure between a locking assembly and a brake pad according to the present invention.

Fig. 11 is a schematic structural view of the brake assembly according to the present invention at different brake angles.

Fig. 12 is a schematic general structure of a third embodiment of the present invention.

In the accompanying drawings: 1. a bobbin; 2. a turntable; 3. a bracket; 31. rotating the support; 32. a diagonal support bar; 33. A graphite copper sleeve; 4. a driving device; 41. a driving motor; 42. a speed reducer; 43. a driving wheel; 44. anti-skid lines; 5. a position adjustment assembly; 51. a top base; 511. a convex edge; 52. a fixed bottom plate; 53. a slideway; 54. A connecting block; 56. a support block; 55. adjusting a screw; 6. a hand brake device; 61. a compaction block; 611. an arc clamping plate; 612. a friction pad; 62. a mounting frame; 63. a pushing shaft; 64. a lock nut; 65. rotating the hand lever; 66. an adjusting hand wheel; 67. a guide rod; 7. a controller; 8. foot brake device; 81. a brake assembly; 811. a rubber anti-slip pad; 812. stopping the protruding block; 8121. a reverse jacking screw; 813. stopping the foot rest; 8131. A clamping shaft; 8132. arc limiting holes; 814. stopping the bottom plate; 815. a limit seat; 816. a return spring; 817. a baffle; 818. adjusting the foot rest; 82. a locking assembly; 821. a locking base; 8211. a U-shaped hole; 822. locking the foot rest; 823. a locking spring; 824. an inclined plane; 825. a bayonet; 826. a special-shaped hole; 827. and a limiting shaft.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Example 1

Referring to fig. 1 to 6, a winch for winding and unwinding an offshore cable according to a preferred embodiment of the present invention includes a bobbin 1, a turntable 2 and a bracket 3, wherein the two turntable 2 are fixedly disposed at two ends of the bobbin 1 by means of screws or welding, respectively, a rotation shaft of the bobbin 1 is rotatably disposed on a rotation support 31 by means of a graphite copper sleeve 33, the rotation support 31 is fixedly disposed on the bracket 3, and a protection cover is fixedly disposed outside thereof to ensure personal safety of a worker, the graphite copper sleeve 33 has stronger anti-rust capability and better performance of bearing radial pressure, and is not easily damaged even under a large weight of the cable wound on the bobbin 1, so that the winch is more suitable for winding and unwinding an offshore cable than a conventional bearing. The inside fixed drive arrangement 4 that is provided with of support 3, drive arrangement 4 installs and fixes and can not occupy more space in the inboard support 3, and support 3 upper portion is fixed with hand brake device 6 in the position of being convenient for staff operation, and drive arrangement 4 activity sets up in support 3 inside, and drive arrangement 4 contacts with carousel 2 outer circumference wall when driving. The driving device 4 is fixed on the bracket 3 through the position adjusting component 5, when the turntable 2 rotates and needs larger torque, the driving device 4 can be in contact with the outer circumferential wall of the turntable 2 to drive, and when the speed regulation or the braking is needed, the turntable 2 is timely adjusted through the hand braking device 6. The means of fixing in the present invention includes, but is not limited to, screw connection and welding, which are common in the art.

There are two methods of securing the head end when performing cable winding: one is to machine a wedge-shaped hole in the reel 1 of the winch, in which hole the cable end is fixed by means of a wedge-shaped joint.

The other is that a hole is formed in a side rotary table 2 of the winch winding drum 1, and after the cable rope head is penetrated out, the cable rope head is pressed on the outer side of the rotary table 2 by a pressing plate through a screw.

The support 3 is arranged to be a semi-enclosed support structure, one side of the support 3 is enclosed, one side of the support is open, a cable enters from one side of an open end, one side of the open end of the semi-enclosed support can be convenient for a worker to perform corresponding operation, the upper end of one side of the closed end is fixedly provided with the protective frame 11, personal safety of the worker during working can be guaranteed, an included angle between the inclined support rod 32 of the open end of the support and the vertical direction is 10-20 degrees, the inclined support rod 32 and the vertical direction can enable the whole support 3 to be more stable and not easy to overturn within the angle range, and when the included angle between the inclined support rod 32 and the vertical direction is 15 degrees, the stability is best.

The driving device 4 comprises a driving motor 41, a speed reducer 42 and a driving wheel 43, wherein the speed reducer 42 is connected between the driving motor 41 and the driving wheel 43, and the speed reducer 42 is connected and arranged on the bracket 3 through the position adjusting assembly 5. The driving wheel 43 can be a pneumatic tire, and the pneumatic tire has certain elasticity, so that most vibration of the turntable 2 can be filtered in the running process, and the driving wheel 43 can be well attached to the turntable 2, so that slipping can be prevented, and the real-time performance of driving force transmission is ensured. And the position of the driving device 4 can be timely adjusted through the position adjusting assembly 5, so that the driving wheel 43 is timely attached to and contacted with the rotary table 2 when the driving wheel 43 is not needed, the driving wheel 43 is far away from the driving table so as to manually rotate the rotary table 2 when the driving wheel is not needed, and the position adjusting assembly 5 is arranged so as to be flexibly applied to actual use.

The driving wheel 43 is provided with a plurality of sets of anti-skid threads 44. By providing the anti-slip pattern 44, the friction between the driving wheel 43 and the turntable 2 can be increased, whereby the occurrence of slip during driving can be reduced.

The position adjusting assembly 5 comprises a fixed bottom plate 52, a top seat 51 and a pushing mechanism, wherein a slide way 53 is fixed on the fixed bottom plate 52, convex edges 511 which are outwards turned out are arranged on two sides of the bottom of the top seat 51, the convex edges 511 on two sides are slidably arranged on the fixed bottom plate 52, and the pushing mechanism is connected between the top seat 51 and the fixed bottom plate 52 and used for adjusting the relative position between the top seat 51 and the fixed bottom. The fixing base plate 52 is mounted on the bracket 3 by screws.

The pushing mechanism comprises a connecting block 54, a supporting block 56 and an adjusting screw 55, wherein the adjusting screw 55 is rotatably arranged on the supporting block 56 through a bearing, the supporting block 56 is fixed on a fixed base, a retainer ring is arranged on the bearing, the service life of the bearing can be prolonged through corrosion of the retainer ring, the bearing and the adjusting screw 55 are in interference fit, a threaded part of the adjusting screw 55 is rotatably arranged in the connecting block 54, the connecting block 54 is fixedly arranged on the top seat 51, the position of the connecting block 54 on the adjusting screw 55 is changed through rotating the adjusting screw 55, and therefore the distance between the connecting block 54 and the supporting block 56 is adjusted, and the relative position between the top seat 51 and the fixed bottom plate 52 is adjusted.

The hand brake device 6 comprises a mounting frame 62, a pushing shaft 63, a compressing block 61, a locking mechanism and an adjusting hand wheel 66, wherein the mounting frame 62 is fixedly arranged at the top of the bracket 3 through screws, the pushing shaft 63 is rotatably arranged on the mounting frame 62, the surface of the pushing shaft 63 is provided with threads, the pushing shaft 63 is rotatably arranged on the mounting frame 62 through threads, the pushing shaft 63 can also be formed by a screw rod, and a nut part of the screw rod is fixedly arranged on the mounting frame 62. The position of the pressing block 61 is controlled by rotating the pushing shaft 63, the positions of the pushing shaft 63 and the pressing block 61 correspond to one group of turntables 2, the pressing block 61 is rotatably arranged at one end of the pushing shaft 63 close to the turntables 2, and one end of the pushing shaft 63 far away from the turntables 2 is connected with a locking mechanism and an adjusting hand wheel 66. The adjusting hand wheel 66 is used for rotating the pushing shaft 63, and the locking mechanism is used for limiting the pushing shaft 63, so that the matching of the threaded part of the pushing shaft 63 is prevented from loosening due to vibration. The hand brake 6 is provided to directly adjust the speed of the turntable 2, thereby reducing damage to the drive motor 41 during deceleration. If the speed of the turntable 2 is directly adjusted by adjusting the rotation speed of the driving motor 41, when the rotation speed or torque of the turntable 2 is large, a certain damage to the output shaft of the driving motor 41 is easily caused due to the shearing force of a knob during deceleration, the service life of the driving motor 41 is shortened, and if the speed of the turntable 2 is adjusted by adjusting the rotation speed of the driving motor 41, the requirement for selecting the type of the driving motor 41 to be used is increased, thereby increasing the use cost. The locking mechanism comprises a locking nut 64 and a plurality of groups of rotating hand rods 65, wherein the rotating hand rods 65 are uniformly distributed and fixed on the side wall of the locking nut 64, the locking nut 64 is rotatably arranged on the pushing shaft 63, and the locking nut 64 is tightly abutted to one side wall of the mounting frame 62 when locking is needed.

The mounting frame 62 is provided with a guide hole, a guide rod 67 is arranged in the guide hole in a penetrating way, and one end of the guide rod 67 is fixed on the compaction block 61. The guide rod 67 can ensure that the direction of the compression block 61 is unchanged when the compression block 61 moves, the movement is smoother, and the guide rod 67 can bear shearing force on the compression block 61 when the compression block 61 contacts with the turntable 2 for braking, so that the damage of the shearing force to the pushing shaft 63 is reduced.

An arc-shaped clamping plate 611 is fixedly arranged on one side of the pressing block 61 close to the turntable 2, and a plurality of groups of friction pads 612 are fixed on the arc-shaped clamping plate 611. The arc-shaped clamping plate 611 can provide more contact area with the outer circumferential wall of the turntable 2, can increase friction, and further increases friction by increasing the friction pad 612.

The support 3 is fixedly provided with a controller 7, and the controller 7 is electrically connected with a driving motor 41. The operation of the driving motor 41 can be more conveniently controlled by the controller 7. The controller 7 is arranged on the side wall of the bracket 3, so that the operation of workers in time can be facilitated.

Example two

As shown in fig. 6 to 11, the difference between the second embodiment and the first embodiment is that the hand brake device 6 in the first embodiment is replaced by the foot brake device 8 in the second embodiment, and the working state that the hands of the staff need to operate other devices in actual operation and are inconvenient to operate the hand brake assembly 81 exists, and at this time, the speed of the turntable 2 can be controlled more conveniently by using the foot brake device 8, so that the operation and the use of the staff are facilitated.

The foot brake device 8 comprises a locking component 82 and a brake component 81, wherein the locking component 82 is adjustably and fixedly arranged on the brake component 81 and used for locking the working state of the brake component 81. The brake assembly 81 is used for braking the turntable 2, and the locking assembly 82 is used for locking the posture of the brake assembly 81 so as to ensure the braking action of the brake assembly 81 for a long time.

The brake assembly 81 comprises a brake bottom plate 814, a brake foot rest 813, a brake protruding block 812 and a limit seat 815, wherein the limit seat 815 can be fixed on the brake bottom plate 814 in a welding mode, the brake foot rest 813 is hinged on the brake bottom plate 814, an arc limit hole 8132 is formed in the hinge position of the brake foot rest 813, which is close to the brake bottom plate 814, the arc limit hole 8132 is arranged coaxially with the hinge position, the limit seat 815 is fixedly welded or integrally formed on the brake bottom plate 814 in the same way, meanwhile, a limit shaft 827 on the limit seat 815 is arranged in the arc limit hole 8132 in a sliding mode on the brake foot rest 813, the rotating angle range of the brake foot rest 813 can be limited through the cooperation between the limit shaft 827 and the arc limit hole 8132, the rotating angle range can refer to the range formed by different angles required by a brake winch in practice, and when the brake state is released, the brake foot rest 813 can rotate clockwise by a certain angle under the action of the tensile force of the return spring 816, and the brake foot rest 813 can be prevented from being rotated through the cooperation between the limit shaft 827 and the arc limit hole 8132, so that the return spring 816 is excessively disconnected. The stopping lug 812 is hinged to the stopping foot rest 813, in the stopping process, along with the anticlockwise rotation of the stopping foot rest 813, the stopping lug 812 is firstly in contact with the outer circumferential surface of the turntable 2 at the highest side, and then the stopping lug 812 rotates until the whole stopping surface of the stopping lug 812 is in contact with the outer circumferential surface of the turntable 2, so that the contact area is increased, the friction force is increased, and a rubber anti-slip pad 811 is fixed on the stopping surface of the stopping lug 812, so that the turntable 2 and the stopping lug 812 can be fully contacted when stopping. Be provided with return spring 816 between stopping foot rest 813 and stopping one side that lug 812 is close to anti-top stop gear, under return spring 816's pulling, can make foot stop device 8 stop the lug 812 anticlockwise rotation to anti-top screw 8121 anti-top conflict to the position of stopping on the baffle 817 of foot rest 813 when stopping the function and releasing, baffle 817 is used for stopping the lug 812 and contradicting with anti-top screw 8121 when gyration, prevents to stop the lug 812 and gyration excessively under return spring 816's effort to break down and can not normally work when the next time stopping the work. When stopping and releasing, the stopping lug 812 rotates anticlockwise by a certain angle under the pulling of the return spring 816, so that the side of the stopping lug 812, which is close to one side of the turntable 2, is higher than the side, which is far away from one side of the turntable 2, and therefore in the next stopping and releasing process, one end of the stopping lug 812, which is close to the turntable 2, is in abutting contact with the outer circumferential surface of the turntable 2 along with anticlockwise rotation of the stopping foot rest 813, and then rotates clockwise, so that the stopping surface of the whole stopping lug 812 is completely attached to the outer circumferential surface of the turntable 2.

The locking assembly 82 comprises a locking base 821, a locking spring 823 and a locking foot rest 822, wherein a long-strip-shaped U-shaped hole 8211 is formed in the locking base 814 along the length direction of the locking base, the locking base 821 is fixedly arranged in the U-shaped hole 8211 of the locking base 814 through a screw, so that the fixed position of the locking base 821 on the locking base can be moved according to needs at the later stage, the transverse distance from the locking base 821 to the bracket 3 is adjusted, the long-strip-shaped U-shaped hole 8211 is formed in the locking base 821 along the vertical direction, a hinge shaft of the locking foot rest 822 is hinged in the U-shaped hole 8211 of the locking base 821, the position of the hinge shaft in the U-shaped hole 8211 is adjusted to adjust the vertical position of the locking foot rest 822, the locking spring 823 is connected between the locking base 821 and one side of the locking foot rest 822, which is close to the turntable 2, a limit shaft 827 on the locking base 821 is arranged in a limit hole in a sliding mode on the locking foot rest in a penetrating mode, the limit shaft 827, the limit hole and the locking foot rest 822 can be made to be in a vertical clamping state under the cooperation of the limit shaft 823, the limit shaft 822 is arranged in a mode, the locking foot rest 822 is enabled to rotate around the joint with the limit shaft 823, and then the locking shaft is enabled to rotate around the rotary joint seat 824, and the locking shaft is enabled to rotate around the rotary joint seat 824 to be clamped to the top surface 824, and then the locking shaft is enabled to rotate around the rotary joint seat is arranged in the rotary seat 824, and the locking shaft is locked to be directly to the locking seat is used for the locking seat is arranged, and the locking seat is used for the locking stand for the locking assembly, and the locking assembly is rotated.

In the process of stopping different turntables 2, the angles rotated by the stopping foot frames 813 are different when the turntables 2 are completely stopped, so that the included angles between the tail end of each stopping foot frame 813 and the horizontal plane are different in the actual stopping state of different winches, the positions of the clamping shafts 8131 of different winches are different when the different winches are stopped, and the stopping positions of the same winch are not fixed as the rubber anti-skid pads 811 are gradually worn along with the later friction loss, as shown in fig. 11, the positions of the locking foot frames 822 are adjusted by the transverse and vertical long U-shaped holes 8211 respectively formed in the stopping bottom plate 814 and the locking base 821, so that the stopping foot frames 813 at different stopping positions can be locked by the bayonets 825 on the locking foot frames 822, and the actual installation and adjustment are facilitated. Since the locking foot rest 822 is adjustable in a vertical position on the locking base 821, the limiting hole provided on the locking foot rest 822 is not a standard arc-shaped hole, but a shaped hole 826 as shown in fig. 11.

The tail part of the brake foot rest 813 is fixed with an adjustable foot rest 818 which can be adjusted according to the requirement in actual use.

Example III

As shown in fig. 12, in this embodiment, the first embodiment is combined with the second embodiment, and the hand brake device 6 and the foot brake device 8 are combined and simultaneously installed on the same group of winches, so that a worker can optionally slow down and brake the winches through any brake device, thereby being more convenient for the worker to operate the winches in the actual working process.

The working principle of the invention is illustrated by example one:

First, the worker fixedly installs the present invention at a designated position on the deck of the working vessel, and then turns on the power supply to the controller 7 and the driving motor 41, and when the inspection determines that each component part is in a normal operation state, the recovery work of the cable can be started.

When the cable is wound, the worker first winds and fixes the end of the cable on the winding drum 1, and then can select whether to drive the turntable 2 to rotate or manually drive the turntable by the driving motor 41 according to the requirement. When the required manual operation turntable 2 rotates, the adjusting screw 55 in the position adjusting assembly 5 is rotated first to enable the positions of the connecting block 54 and the supporting block 56 to be close to each other, so that the top seat 51 slides to the side far away from the turntable 2 under the driving of the connecting block 54 and the driving device 4 fixed on the top seat is driven to be far away from the turntable 2, so that the driving wheel 43 and the outer surface of the turntable 2 are far away from each other, and at the moment, the manual operation of the turntable 2 by a worker can be free from the influence of the resistance of the driving motor 41, and the manual operation of the turntable 2 is more flexible and easy. When the motor is required to drive, the driving wheel 43 in the driving device 4 is enabled to move towards the direction approaching to the turntable 2 by rotating the adjusting screw 55 until the outer rubber part of the driving wheel 43 is tightly abutted to the outer circumferential surface of the turntable 2, the turntable 2 is enabled to be driven to move by friction force when the driving wheel 43 rotates, and then the movement of the turntable 2 is adjusted by pressing a button on the controller 7.

When the speed reduction is required, the adjusting hand wheel 66 in the hand brake device 6 is rotated firstly, the pushing shaft 63 can move to the side close to the turntable 2 on the mounting frame 62 under the driving of the adjusting hand wheel 66, the end part of the pushing shaft 63 is rotated to abut against the back surface of the pressing block 61, so that the pressing block 61 can approach to the turntable 2 under the driving of the pushing shaft 63, the friction pad 612 fixed on the arc clamping plate 611 of the pressing block 61 can gradually abut against and press on the outer circumferential wall of the turntable 2, the rotating speed of the turntable 2 is reduced by adjusting the pressing force, and if a certain friction force is required to be provided for a long time to reduce the turntable 2, the locking mechanism rotationally arranged on the pushing rod can be rotated after the position of the pushing shaft 63 is adjusted, the end surface of the locking nut 64 abuts against the side of the mounting frame 62, the pushing shaft 63 is fixed on the mounting frame 62 through the locking nut 64 to prevent the loosening of the matching of the threaded part of the pushing shaft 63 due to vibration, and thus the braking force reduction of the turntable 2 cannot realize the speed reduction function.

The foregoing description is directed to the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the invention, and all equivalent changes or modifications made under the technical spirit of the present invention should be construed to fall within the scope of the present invention.

Claims (6)

1. The winch for winding and unwinding the offshore cable comprises a winding reel (1), a turntable (2) and a support (3), wherein the turntable (2) is fixedly arranged at two ends of the winding reel (1), the winding reel (1) is rotatably arranged on the support (3), the winch is characterized in that a driving device (4) and a braking device are arranged on the support (3), the driving device (4) is movably arranged inside the support (3), when the winch is used for driving, the driving device (4) is in contact with the outer circumferential wall of the turntable (2), the support (3) is of a semi-enclosed support structure, an included angle between an inclined support rod (32) at the open end of the support (3) and the vertical direction is 10-20 DEG, the braking device comprises a hand braking device (6) and a foot braking device (8), the foot braking device (8) comprises a locking component (82) and a braking component (81), the locking component (82) is adjustably and fixedly arranged on the braking component (81) and is used for locking the foot braking component (814), the foot braking component (814) is arranged on a base plate (815) and the base plate (815) is fixedly arranged on the base plate (815), the utility model provides a stop foot rest (813) articulated set up on stopping bottom plate (814), spacing axle (827) on spacing seat (815) slide and wear to locate on stopping foot rest (813), stop lug (812) articulated set up on stopping foot rest (813), stop foot rest (813) respectively with stop lug (812) and stop bottom plate (814) between be provided with return spring (816), stop and be equipped with anti-stop mechanism between lug (812) and stopping foot rest (813), locking subassembly (82) include locking base (821), locking spring (823) and locking foot rest (822), locking foot rest (822) adjustable articulated set up on locking base (821), locking spring (823) connect and set up between locking base (821) and locking foot rest (822), spacing axle (827) on locking base (821) slide and wear to locate on locking foot rest (822), set up bayonet socket (825) on locking foot rest (822) and stop foot rest (825) and realize that bayonet socket (825) and locking shaft (825) are blocked.

2. Winch for winding and unwinding marine cables according to claim 1, characterized in that the angle of the diagonal support bar (32) is 15 ° to the vertical.

3. The marine cable winding and unwinding winch according to claim 2, wherein the driving device (4) comprises a driving motor (41), a speed reducer (42) and a driving wheel (43), the speed reducer (42) is connected between the driving motor (41) and the driving wheel (43), and the speed reducer (42) is connected and arranged on the bracket (3) through a position adjusting assembly (5).

4. A marine cable winding and unwinding winch according to claim 3, wherein the position adjusting assembly (5) comprises a fixed bottom plate (52), a top seat (51) and a pushing mechanism, the top seat (51) is slidably arranged on the fixed bottom plate (52), the pushing mechanism comprises a connecting block (54), a supporting block (56) and an adjusting screw (55), the adjusting screw (55) is rotatably arranged on the supporting block (56), a threaded part of the adjusting screw (55) is rotatably arranged in the connecting block (54), the connecting block (54) is fixedly arranged on the top seat (51), and the supporting block (56) is fixedly arranged on the fixed bottom plate (52).

5. The marine cable winding and unwinding winch according to claim 1, wherein the hand brake device (6) comprises a mounting frame (62), a pushing shaft (63), a pressing block (61), a locking mechanism and an adjusting hand wheel (66), the mounting frame (62) is fixedly arranged at the top of the support (3), the pushing shaft (63) is rotatably arranged on the mounting frame (62), the pressing block (61) is correspondingly positioned with one group of turntables (2), the pressing block (61) is rotatably arranged at one end, close to the turntables (2), of the pushing shaft (63), and the locking mechanism and the adjusting hand wheel (66) are connected to one end, far away from the turntables (2), of the pushing shaft (63).

6. The marine cable winding and unwinding winch according to claim 5, wherein the locking mechanism comprises a lock nut (64) and a plurality of sets of rotating hand levers (65), the plurality of sets of rotating hand levers (65) are uniformly fixed on the side wall of the lock nut (64), the lock nut (64) is rotatably arranged on the pushing shaft (63), and the lock nut (64) is tightly abutted to one side wall of the mounting frame (62) when the locking is required.