CN112645252B - Multifunctional forklift - Google Patents
Multifunctional forkliftInfo
- Publication number
- CN112645252B CN112645252B CN202011626117.2A CN202011626117A CN112645252B CN 112645252 B CN112645252 B CN 112645252B CN 202011626117 A CN202011626117 A CN 202011626117A CN 112645252 B CN112645252 B CN 112645252B
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- China
- Prior art keywords
- frame
- encoder
- steering
- bracket
- oil
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/20—Means for actuating or controlling masts, platforms, or forks
- B66F9/22—Hydraulic devices or systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/07504—Accessories, e.g. for towing, charging, locking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/07568—Steering arrangements
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
本发明公开了一种多功能叉车，包括车架、门架、前轮、测速结构、角度测量结构、滑块调节结构、及双油缸结构，所述门架包括前移架，所述转向结构包括回转支承和转向支架，所述转向支架设于所述前轮的上方，所述测速结构连接在所述轮辋的另一侧上、且与所述转向支架相连接，所述角度测量结构设于所述回转支承的中心孔内、且与所述车架相连接；所述双油缸结构的其一端固接在车架上、且另一端与所述前移架相连接。本发明通过测速结构完成测速，通过角度测量结构完成转向角度测量，通过所述双油缸结构提高所述前移架的移动行程，通过所述滑块调节结构调节叉车中相对移动的两个结构架之间的间距。
The present invention discloses a multifunctional forklift, including a frame, a gantry, a front wheel, a speed measuring structure, an angle measuring structure, a slider adjustment structure, and a dual-cylinder structure. The gantry includes a forward frame, the steering structure includes a slewing bearing and a steering bracket, the steering bracket is arranged above the front wheel, the speed measuring structure is connected to the other side of the rim and is connected to the steering bracket, the angle measuring structure is arranged in the center hole of the slewing bearing and is connected to the frame; one end of the dual-cylinder structure is fixed to the frame, and the other end is connected to the forward frame. The present invention completes speed measurement through the speed measuring structure, completes steering angle measurement through the angle measuring structure, increases the moving stroke of the forward frame through the dual-cylinder structure, and adjusts the distance between the two structural frames that move relative to each other in the forklift through the slider adjustment structure.
Description
Technical Field
The invention belongs to the technical field of forklifts, and particularly relates to a multifunctional forklift.
Background
The forklift is a factory building carrying vehicle and is used for carrying out loading and unloading, stacking and short-distance transportation operations on finished pallet cargoes, so that the conventional forklift has a plurality of defects, such as a structure that no speed measurement or angle measurement is mounted on a plurality of forklifts, for example, due to the size of the forklifts, only one oil cylinder for enabling the forward moving frame in the gantry to move can be used, so that the stroke is short, the requirements of a plurality of new factory buildings cannot be met, for example, the spacing between the upper gantry and the frame of the forklift and between the outer gantry and the inner gantry are required to be adjusted, and the conventional gasket adjustment mode is very inconvenient to operate due to the space of the forklift.
Disclosure of Invention
The invention aims to provide a multifunctional forklift so as to overcome the technical problems.
The technical aim of the invention is realized by the following technical scheme:
The utility model provides a multifunctional forklift, includes frame, portal and front wheel, the front wheel rotates through the driving motor that rim one side is connected just driving motor installs through turning to the structure on the frame, the portal includes the forward frame, turn to the structure and include slewing bearing and turn to the support, turn to the support and locate the top of front wheel, multifunctional forklift still includes:
the speed measuring structure is connected to the other side of the rim and connected with the steering bracket and used for measuring the speed;
The angle measuring structure is arranged in the central hole of the slewing bearing and connected with the frame and is used for measuring angles;
the sliding block adjusting structure is used for adjusting the distance between two structure frames which relatively move in the forklift;
And one end of the double-oil-cylinder structure is fixedly connected to the frame, and the other end of the double-oil-cylinder structure is connected with the forward frame and is used for improving the moving stroke of the forward frame.
Further, the speed measuring structure and the angle measuring structure comprise a measurer and a mounting piece connected with the measurer;
The measurer of the speed measuring structure is connected to the other side of the rim and can synchronously rotate with the front wheel, and the mounting piece of the speed measuring structure is fixedly connected with the steering bracket;
The angle measurement structure is arranged in the center hole of the slewing bearing, a measurer of the angle measurement structure is connected to the steering bracket and can rotate synchronously with the steering bracket, and a mounting piece of the angle measurement structure is fixedly connected to a frame leg of the frame.
Further, the measuring device of the speed measuring structure is an incremental encoder, the mounting piece comprises a transition disc, an encoder connecting frame and a connecting plate, the transition disc is fixedly connected to the rim, the incremental encoder is fixedly connected to the encoder connecting frame, a rotor of the incremental encoder penetrates through the encoder connecting frame to be connected with the transition disc, the encoder connecting frame extends out of the front wheel and is connected with the connecting plate, and the connecting plate is vertically arranged and is connected with the steering bracket.
Further, the encoder connecting frame is a cylinder structure with one end open, the other end of the encoder connecting frame is provided with a through hole which is convenient for a rotor of the incremental encoder to pass out, a circular ring plate extends out of the outer edge of one end of the cylinder structure, which is close to the opening, of the cylinder structure, the connecting plate is provided with a limit hole for connecting the encoder connecting frame, the circular ring plate is fixedly connected in the limit hole, and the limit hole is connected with an outer cover plate for covering the opening of the encoder connecting frame
Further, the measuring device of the angle measuring structure is an absolute value encoder, the mounting piece comprises a coupler, an encoder support and a fixed cover plate, the coupler is fixedly connected to the steering support, the absolute value encoder is connected to the encoder support, a rotor of the absolute value encoder penetrates through the encoder support to be connected to the coupler, a mounting hole is formed in the frame leg corresponding to the center hole of the slewing bearing, the encoder support is connected to the mounting hole, and the fixed cover plate is connected to the mounting hole and covers the encoder support.
Further, the slider adjusting structure is arranged between the two structural frames and comprises a connecting block, a guide block and a slider which are sequentially arranged side by side, the slider is fixedly connected with the guide block, a guide hole is formed in the guide block, the connecting block faces the side face of the guide block, a guide pin shaft corresponding to the guide hole is fixedly connected to the side face of the guide block, a jacking bolt which jacks the guide block to enable the guide block to move along the axis direction of the guide pin shaft is connected to the connecting block, the guide block is connected with the connecting block through an elastic bolt, and the connecting block is fixedly connected to one of the structural frames and the corresponding slider is tightly attached to the other structural frame.
Further, the double-cylinder structure comprises two cylinders which are connected with each other and are arranged in parallel and two connecting oil pipes which are arranged along the length direction of the two cylinders, two telescopic ends of the two cylinders are respectively fixedly connected with the frame and the forward frame, and the telescopic directions of the two telescopic ends are opposite, two ends of the connecting oil pipes are respectively close to two ends of the cylinders, and the two ends of each connecting oil pipe are respectively connected with the two cylinders along the same end of the length direction of the two connecting oil pipes, and two ends of each connecting oil pipe are respectively butted with the two cylinders.
Further, two oil port connectors are arranged on the two oil cylinders, and the two oil port connectors are arranged at two ends of one oil cylinder or at the same end of the two oil cylinders.
Further, the steering structure further comprises a steering oil cylinder, a fixing support and a connecting pin shaft, the fixing support comprises two transverse connecting plates which are arranged up and down and are parallel to transverse plates of frame legs of the frame, the two transverse connecting plates are fixedly connected to the frame legs, a telescopic end of the steering oil cylinder is connected to the steering support through a front pin shaft, a mounting hole is formed in the transverse plates, the connecting pin shaft is connected to the mounting hole and is connected to the two transverse connecting plates in a vertical mode, and a fixed end of the steering oil cylinder is arranged between the two transverse connecting plates and is connected to the connecting pin shaft.
The beneficial effects are that:
According to the invention, the speed of the forklift is measured through the speed measuring structure arranged on one side outside the rim, and the speed measuring structure is connected to the steering bracket, so that synchronous steering of the speed measuring structure and the front wheel can be realized;
According to the invention, the steering angle of the forklift is measured through the angle measuring structure which is arranged in the slewing bearing and connected in the frame, and the forklift does not need extra installation space and can be directly installed from the upper part of the frame legs of the frame because the angle measuring structure is arranged in the slewing bearing, so that the measurement is accurate, the structure is simple, and the installation and the disassembly are convenient;
according to the invention, the gap between the two structural frames is adjusted through the guide block, the guide pin shaft and the jacking bolt in the sliding block adjusting structure, and the sliding block used in the sliding block adjusting structure does not influence the relative movement between the two structural frames;
according to the invention, the moving stroke of the forward frame can be doubled on the basis of the existing oil cylinder through the double-oil-cylinder structure, and the structural space of a forklift is not required to be adjusted.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of an exploded view of the present invention with the tachometer structure unassembled;
FIG. 3 is a cross-sectional view of the assembled FIG. 2;
FIG. 4 is a schematic view of an exploded view of the angle measurement structure of the present invention;
FIG. 5 is a cross-sectional view of the assembled FIG. 4;
FIG. 6 is a schematic diagram of an exploded view of the slide adjustment structure of the present invention between an inner portal and an outer portal;
FIG. 7 is a schematic diagram of a dual cylinder structure according to the present invention;
FIG. 8 is a schematic structural view of a steering structure according to the present invention;
10, a frame, 11, a transverse plate, 20, a portal frame, 21, a forward frame, 22, an inner portal frame, 23, an outer portal frame, 30, a front wheel, 31, a driving motor, 32, a rim, 40, a steering structure, 41, a slewing bearing, 42, a steering bracket, 43, a steering cylinder, 44, a fixed bracket, 441, a transverse connecting plate, 45, a connecting pin, 46, a front pin, 50, a speed measuring structure, 51, an incremental encoder, 52, a transition disc, 53, an encoder connecting frame, 54, a connecting plate, 55, a ring-shaped plate, 56, an outer cover plate, 60, an angle measuring structure, 61, an absolute encoder, 62, a coupling, 63, an encoder bracket, 64, a fixed cover plate, 65, an encoder fixing block, 70, a slider adjusting structure, 71, a connecting block, 72, a guide block, 73, a slider, 74, a guide pin, 75, a jack-in bolt, 76, a bolt, 80, a double cylinder structure, 81, an oil cylinder, 82, a connecting oil pipe, 83, and an oil port joint.
Detailed Description
In the description of the present invention, unless otherwise indicated, the terms "upper," "lower," "left," "right," "front," "rear," and the like are merely for the purpose of describing the present invention and simplifying the description, and do not indicate or imply that the devices or structures being referred to must have a particular orientation and are not to be construed as limiting the invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The multifunctional forklift is adjusted from four aspects of (1) adding a speed measuring structure and an angle measuring mechanism, (2) improving a structure frame which moves relatively in the forklift, such as between an inner portal frame and a fork frame, between a portal frame and a frame and between the inner portal frame and an outer portal frame, aiming at the adjustment mode of the space between the structure frames, improving the existing side roller gasket adding mode into the sliding block adjusting mode of the invention, (3) improving the oil cylinder structure of the existing forward moving frame into a double oil cylinder structure, and (4) improving the steering structure of the existing front wheel so as to facilitate installation and disassembly. The specific contents are as follows:
As shown in fig. 1, the multifunctional forklift comprises a frame 10, a portal 20, a front wheel 30, a steering structure 40, a speed measuring structure 50, an angle measuring structure 60, a slider adjusting structure 70 and a double cylinder structure 80. Wherein, the front wheel rotates through a driving motor 31 connected with one side of a rim 32, and the driving motor is installed on the frame 10 through a steering structure 40, the frame comprises a front moving frame 21, the steering structure comprises a slewing bearing 41 and a steering bracket 42, and the steering bracket is arranged above the front wheel.
The following description is made with respect to the four aspects described above:
The improvement of the first aspect is that the speed measuring structure and the angle measuring structure each comprise a measurer and a mounting part connected with the measurer, and the aspect is described with reference to fig. 2-4 and 8.
The measurer of the speed measuring structure is an incremental encoder 51 as shown in fig. 2 and 3, and is connected to the other side of the rim and can synchronously rotate with the front wheel to measure the speed, and the mounting piece of the speed measuring structure is fixedly connected with the steering bracket to synchronously steer the speed measuring structure with the steering bracket and the front wheel.
As shown in fig. 2 and 3, the mounting part of the speed measuring structure comprises a transition disc 52, an encoder connecting frame 53 and a connecting plate 54, wherein the transition disc is fixedly connected to the other side of the rim, the incremental encoder is fixedly connected to the encoder connecting frame, the rotor of the incremental encoder passes through the encoder connecting frame to be connected with the transition disc, the encoder connecting frame extends outwards from a wheel to the outside of the front wheel and is connected with the connecting plate, the connecting plate is vertically arranged and is connected with the steering bracket, the encoder connecting frame and the connecting plate are fixed through the steering bracket, and the incremental encoder can be synchronously rotated with the front wheel through the encoder connecting frame, so that measurement is realized, and the incremental encoder is synchronously steered with the front wheel through the encoding connector and the connecting plate when the front wheel is steered.
In order to avoid debris to cause damage and be convenient for the equipment to the increment encoder of installation, the encoder link preferably adopts one end open-ended tubular structure, and its other end is equipped with the through-hole that the rotor of increment encoder of being convenient for worn out, tubular structure orientation front wheel outside, and the opening direction with the axis direction of front wheel is the same, in order to be convenient for the connection of encoder link and connecting plate extend a ring template 45 on the outer fringe that is close to open-ended on the tubular structure the connecting plate is equipped with simultaneously and is used for connecting the spacing hole of encoder link, spacing hole from outside to interior two parts that reduce in diameter, the less part of diameter with the external diameter of tubular structure is unanimous, the great part of diameter with the external diameter of ring template is unanimous, so with tubular structure joint in the spacing hole and be connected the ring template through the fastener in the spacing downthehole, realized so installing tubular structure on the connecting plate.
And the connecting plate is connected with an outer cover plate 56 for sealing the opening of the encoder connecting frame, and the outer cover plate can be consistent with the diameter of the part with larger diameter of the limiting hole, so that the outer cover plate is arranged in the limiting hole, or the diameter of the outer cover plate is larger than the maximum diameter of the limiting hole, and the outer cover plate is directly covered on the limiting hole. The two modes can realize the sealing of the opening of the encoder connecting frame, and the protection of the incremental encoder is achieved.
And (3) assembling the speed measuring structure, namely fixedly connecting a transition disc on a rim, installing an incremental encoder in an encoder connecting frame, embedding the encoder connecting frame in a limiting hole of the connecting plate and fixing the encoder connecting frame, connecting a rotor of the incremental encoder on the transition disc, fixing an outer cover plate on the limiting hole, and finally fixedly connecting the connecting plate with a steering bracket to finish assembling.
As shown in fig. 4 and 5, the angle measuring structure is disposed in the center hole of the slewing bearing, the measurer of the angle measuring structure is an absolute value encoder 61, the absolute value encoder is connected to the steering bracket and can rotate synchronously with the steering bracket, and the mounting piece of the angle measuring structure is fixedly connected to the forklift frame leg.
As shown in fig. 4 and 5, the mounting member of the angle measuring structure includes a coupling 62, an encoder bracket 63 and a fixing cover plate 64, a groove is machined on the steering bracket, the coupling is mounted on the groove, the absolute value encoder is connected to the encoder bracket, the rotor of the absolute value encoder passes through the encoder bracket to be connected to the coupling, a mounting hole is formed on the frame leg of the forklift corresponding to the center hole of the slewing bearing, and the encoder bracket is mounted in the mounting hole, so that the body part of the absolute value encoder and the frame leg of the forklift are fixed by the encoder bracket, and the rotor part of the absolute value encoder and the steering bracket synchronously move through the coupling, thereby achieving the purpose of measuring the angle. In the above, the absolute value encoder is fixed in the encoder bracket by at least two encoder fixing blocks 65.
In order to avoid damage to the absolute value encoder caused by sundries and facilitate assembly, the encoder support preferably adopts a cylindrical structure with an opening at one end, the opening direction is vertically upward, a circular plate extends along the circumferential direction of the cylindrical structure on the outer edge of one end, which is provided with the opening, of the cylindrical structure, the mounting hole is divided into three parts with diameters sequentially reduced from top to bottom, the parts close to the slewing bearing are consistent with the diameters of the cylindrical structure, the middle parts are consistent with the outer diameters of the circular plate, the uppermost parts are consistent with the outer diameters of the fixed cover plates, so that the cylindrical structure can be directly sleeved in the mounting hole, the circular plate is fixed in the mounting hole through a fastener, finally, the fixed cover plates are embedded on the largest diameter part of the mounting hole, and the upper end faces of the fixed cover plates and the upper end faces of the forklift frame legs are arranged on the same horizontal plane, thereby avoiding influence on the use of the forklift frame legs.
And assembling the angle measurement structure, namely machining the frame legs according to the position of the center hole of the slewing bearing, machining the steering bracket, installing the coupler on the steering bracket, installing the absolute encoder on the encoder bracket, connecting the rotor of the absolute encoder on the coupler, embedding the encoder bracket on the installation hole, connecting the annular plate through the fastener, and finally embedding the fixed cover plate on the installation hole, thereby completing the installation of the angle measurement structure.
The improvement of the second aspect is described with reference to fig. 1 and 6:
as shown in fig. 6, the slider adjusting structure 70 is used for adjusting the distance between two structural frames that relatively move in the forklift, and the slider adjusting structure is disposed between the two structural frames, and the adjustment between the inner gantry and the outer gantry will be described below as an example.
The sliding block adjusting structure is arranged between the outer door frame 23 and the inner door frame 22 and comprises a connecting block 71, a guide block 72 and a sliding block 73 which are sequentially arranged side by side, wherein the sliding block is preferably made of metal copper, and the sliding block is fixedly connected with the guide block through a fastening bolt.
Wherein, be equipped with two guiding holes on the guide block, simultaneously on the connecting block orientation the side of guide block on the rigid coupling have with two guide pin shafts 74 corresponding to two guiding holes, so, the guide block corresponds the connecting block can take place relative movement, so, further, be connected with on the connecting block and carry out the jacking bolt 75 that advances the guide block so that the guide block is followed the axis direction of guide pin shaft carries out the removal to this promotes the removal of guide block through the contact of jacking bolt and guide block.
The connecting block is fixedly connected to the outer door frame or the inner door frame, corresponding sliding blocks are tightly attached to the inner door frame or the outer door frame, as shown in fig. 6, the connecting block is fixedly connected to the outer door frame, the sliding blocks are tightly attached to the inner door frame, four small screw holes are formed in the outer door frame, the connecting block is fixedly connected to the outer door frame through four bolts on the four small screw holes, two adjusting holes are formed in the outer door frame, two jacking bolts are arranged, the two jacking bolts correspond to the adjusting holes, the jacking bolts are screwed and loosened through the adjusting holes, so that the jacking bolts are adjusted, and the length of the jacking bolts is required to be larger than the width of the connecting block.
The guide block can drop from the guide pin shaft or displace at the guide pin shaft when the adjustment is not needed because the guide block and the connecting block can relatively move, and therefore, an elastic screw hole is further formed in the outer door frame, and an elastic bolt 76 capable of penetrating through the connecting block and being connected to the guide block is connected to the elastic screw hole.
The adjusting process comprises the following steps:
According to the structure, the elastic bolt is loosened when the adjustment is needed, the gap between the guide block and the connecting block is adjusted by adjusting the jacking bolt, so that the sliding block on the guide block moves, the distance between the outer door frame and the inner door frame is adjusted, and the elastic bolt is fastened again after the adjustment is completed.
A third aspect of improvement is described below in connection with fig. 1 and 7.
As shown in fig. 7, the dual-cylinder structure includes two cylinders 81, two connecting oil pipes 82 and two oil port joints 83, and in order to realize synchronous extension and contraction of piston rods in the two cylinders, the structural relationship between the two cylinders, the two connecting oil pipes and the two oil port joints is required to be optimally designed, which is specifically as follows:
The two cylinders are connected with each other and arranged in parallel, the two cylinders are aligned at two ends and of the same size, the two cylinders are connected together in a welding mode, and two telescopic ends of the two cylinders are fixedly connected with a frame 10 of a forklift and a portal 20 of the forklift respectively and the telescopic directions of the two telescopic ends are opposite.
The two connecting oil pipes are arranged along the length direction of the two oil cylinders, the two ends of the connecting oil pipes are close to the two ends of the two oil cylinders respectively, the two connecting oil pipes are connected to the two oil cylinders along the same end of the two connecting oil pipes in the length direction, and meanwhile, the two ends of each connecting oil pipe are respectively butted to the two oil cylinders, so that the two oil cylinders are connected through the two connecting oil pipes, and two oil paths are formed.
In fig. 7, two oil ports are respectively arranged at two ends of one oil cylinder, two oil ports are respectively arranged at two ends of the one oil cylinder, two oil cylinders are respectively corresponding to the extending oil port joint and the contracting oil port joint of a piston rod, when the pressure oil is fed from the extending oil port joint, the pressure oil enters the upper oil cylinder to drive the piston rod of the upper oil cylinder, at the moment, the pressure oil enters the upper oil cylinder and simultaneously enters the lower oil cylinder along a connecting oil pipe to drive the piston rod of the lower oil cylinder synchronously, due to the structural design of the connecting oil pipe, the extending directions of the piston rods of the upper oil cylinder and the lower oil cylinder are opposite, so that double-stroke movement can be formed in the forklift, and similarly, when the piston rods of the upper oil cylinder and the lower oil cylinder are in an extending state, the pressure oil enters the piston rods from the contracting oil port joint, and simultaneously the pressure oil entering the upper oil cylinder enters the lower oil cylinder along the connecting oil pipe to promote the contraction of the piston rods of the lower oil cylinder.
As shown in FIG. 7, the top end of one of the two piston rods of the two cylinders is provided with a thread and can be fixedly connected with the forklift frame in a threaded manner, and meanwhile, the top end of the other piston rod is provided with a round hole, a connecting frame can be installed on the forward frame 21 of the forklift frame, and the piston rod can be connected to the connecting frame in a pin shaft manner, so that the piston rod is fixedly connected with the forward frame.
The fourth aspect is improved by the following description of this aspect with reference to fig. 1 and 8.
The steering structure steers the front wheels of the forklift, the number of the front wheels is two, the steering structure is correspondingly provided with two steering structures, the steering structures are driven to steer by using steering oil cylinders, and the oil inlet and outlet modes of the two steering structures are controlled by an oil way system, so that the aim of synchronous steering of the two front wheels is fulfilled.
As shown in fig. 8, the steering structure includes a steering bracket 42, a slewing bearing 41, a steering cylinder 43, a fixed bracket 44, a connecting pin 45 and a front pin 46, wherein the steering cylinder adopts a long cylinder with pin holes at both ends. The steering structure is connected to the frame leg of the forklift truck, the frame leg comprises a transverse plate 11, the rotary support is transversely arranged above the front wheel and fixedly connected to the lower end face of the transverse plate, the steering support is arranged below the rotary support and fixedly connected to the rotary support, the steering support comprises a transverse frame connected with the rotary support and a vertical frame arranged on one side of the front wheel and connected with the driving motor, and the vertical frame is fixedly connected to the transverse frame, so that connection among the driving motor, the steering support and the leg frame is completed.
The fixed support comprises two mutually parallel transverse connection plates 441 which are arranged up and down and are parallel to the transverse plates 11, the two transverse connection plates are fixedly connected to the side faces of the forklift frame legs, the steering cylinder is arranged between the fixed support and the steering support, the telescopic end of the steering cylinder is connected to one corner end of the transverse frame through a front pin 46, the connection pin is connected to the two transverse connection plates in a vertical mode, and the fixed end of the steering cylinder is arranged between the two transverse connection plates and is arranged on the connection pin, so that the connection of the steering cylinder, the fixed support and the steering support is completed.
Further, a mounting hole is machined at the position, corresponding to the fixing support, of the transverse plate of the forklift frame leg, the connecting pin shaft is connected to the mounting hole and penetrates through the transverse connecting plate at the upper layer in a vertical mode, the lower end of the connecting pin shaft is connected to the transverse connecting plate at the lower layer, namely, the two transverse connecting plates are respectively provided with a connecting hole, the connecting holes correspond to the mounting holes, therefore, when the forklift frame leg is mounted, the pin holes of the steering cylinder fixing end are aligned to the connecting holes, the connecting pin shaft penetrates through the mounting holes and the connecting holes from the upper side of the forklift frame leg, and finally the connecting pin shaft is connected to the connecting pin shaft on the forklift frame leg, so that the purposes of convenience in mounting and simplicity in dismounting can be achieved.
In the invention, in order to strengthen the connection strength between the transverse frame and the vertical frame, the vertical frame is connected with a reinforcing plate which is arranged below the transverse frame and fixedly connected with the transverse frame, a plurality of reinforcing plates can be arranged, and the reinforcing plates are preferably connected with the transverse frame in an inclined mode so as to avoid being contacted with a front wheel, and secondly, in order to strengthen the connection strength between the fixing support and the frame leg, the side faces of the two transverse connecting plates are fixedly connected with a reinforcing plate fixedly connected with the frame leg of the forklift, and the reinforcing plate is connected with the transverse plate and the side edge of the frame leg of the forklift.
The steering principle is that a piston rod of a steering oil cylinder is connected with a steering bracket 42 through a front pin shaft 46, a front wheel is mounted on the steering bracket, the steering bracket is connected to a frame leg through a slewing bearing 41, the steering bracket can freely rotate with the frame leg through the slewing bearing, a cylinder barrel of the steering oil cylinder is connected with a fixed bracket 44 through a connecting pin shaft 45, the fixed bracket is welded on the frame leg, when the actual front wheel needs to rotate, the piston rod is extended out through supplying pressure oil to the steering oil cylinder, the steering bracket is pushed to rotate, namely the front wheel is driven to rotate, and at the moment, the steering oil cylinder swings between two transverse connecting plates through the connecting pin shaft.
The foregoing embodiments of the present invention have been described in some detail for purposes of clarity of understanding, and are not to be construed as limiting the scope of the invention. It should be noted that any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011626117.2A CN112645252B (en) | 2020-12-30 | 2020-12-30 | Multifunctional forklift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011626117.2A CN112645252B (en) | 2020-12-30 | 2020-12-30 | Multifunctional forklift |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112645252A CN112645252A (en) | 2021-04-13 |
| CN112645252B true CN112645252B (en) | 2025-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011626117.2A Active CN112645252B (en) | 2020-12-30 | 2020-12-30 | Multifunctional forklift |
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