CN119409111B

CN119409111B - A hydraulic drive structure for a hydraulically controlled omnidirectional truck-mounted forklift

Info

Publication number: CN119409111B
Application number: CN202411594229.2A
Authority: CN
Inventors: 胡孔友; 梁华晔
Original assignee: Anhui Yongjieli Intelligent Equipment Co ltd; ANHUI SPECIAL EQUIPMENT INSPECTION INSTITUTE
Current assignee: Anhui Yongjieli Intelligent Equipment Co ltd; ANHUI SPECIAL EQUIPMENT INSPECTION INSTITUTE
Priority date: 2024-11-08
Filing date: 2024-11-08
Publication date: 2025-11-14
Anticipated expiration: 2044-11-08
Also published as: CN119409111A

Abstract

The invention relates to the technical field of forklifts, in particular to a hydraulic driving structure of a hydraulic control omnidirectional truck-mounted forklift, which comprises a connecting seat used for being fixed on the forklift, wherein a portal is arranged on the connecting seat, a lifting rail is arranged on the inner side of the portal, a fork is adaptively arranged in the lifting rail, the fork comprises a lifting seat adaptively arranged in the lifting rail, two groups of fork bodies are fixedly arranged on the lifting seat, a placing groove is formed in the fork body, a telescopic plate is arranged in the placing groove, a turnover hydraulic cavity is formed in the telescopic plate, a turnover piston is adaptively arranged in the turnover hydraulic cavity and is used for driving a tooth-missing gear to rotate, the tooth-missing gear is used for being meshed with a gear plate to drive the turnover plate to turn over from the horizontal state to the vertical state to the maximum state, and a power component is dynamically connected to the turnover hydraulic cavity.

Description

Hydraulic driving structure of hydraulic control omnidirectional truck-mounted forklift

Technical Field

The invention relates to the technical field of forklifts, in particular to a hydraulic driving structure of a hydraulic control omni-directional truck-mounted forklift.

Background

The hydraulic forklift is a common material handling device and plays an important role in the fields of logistics, storage, manufacturing and the like. The hydraulic forklift mainly utilizes a hydraulic system to realize lifting and carrying of goods. The hydraulic pump converts mechanical energy into hydraulic energy, and the hydraulic cylinder converts the hydraulic energy into mechanical energy to push the fork to ascend or descend.

The invention patent in China with the application number of 2015174402. X provides a hydraulic universal four-wheel-drive forklift, which comprises a working device, a body structure, a driving system, a steering system and a balancing system, wherein the working device is arranged at the front part of the body structure, the body structure comprises a frame and a cab, the cab is arranged at the top of the frame, the driving system is arranged at the bottom of the frame, the driving system adopts the four-wheel-drive system, the driving system comprises four driving wheels, and the hydraulic universal four-wheel-drive forklift can control the four driving wheels to independently steer through the steering system, so that the hydraulic universal four-wheel-drive forklift is greatly convenient for factories and transportation enterprises to use.

The present inventors have found that the prior art has at least the following problems:

For some piled or easily sliding cargoes, when the forklift is suddenly braked, the cargoes easily slide or fall over from the fork of the forklift, so that the cargoes are damaged, and personnel can be injured seriously.

Disclosure of Invention

Therefore, the invention aims to provide a hydraulic driving structure of a hydraulic control omnidirectional truck-mounted forklift so as to solve the problem that cargoes easily slip and fall in the sudden braking process of the forklift.

Based on the above purpose, the invention provides a hydraulic driving structure of a hydraulic control omnidirectional truck-mounted forklift, which comprises a connecting seat used for being fixed on the forklift, wherein a portal is arranged on the connecting seat, a lifting rail is arranged on the inner side of the portal, a fork is adaptively arranged in the lifting rail, the fork comprises a lifting seat adaptively arranged in the lifting rail, two groups of fork bodies are fixedly arranged on the lifting seat, a placing groove is formed in the fork body, a telescopic plate is arranged in the placing groove, a turnover hydraulic cavity is formed in the telescopic plate, a turnover piston is adaptively arranged in the turnover hydraulic cavity, the turnover piston is connected with a gear plate, the gear plate is in meshed connection with a tooth-missing gear, the tooth-missing gear is connected with a turnover shaft, the end part of the turnover shaft is connected with a shaft seat, the shaft seat is arranged at the top end of the telescopic plate, the turnover plate is integrally formed with the connecting frame, the tooth-missing gear is used for being in meshed transmission with the gear plate, so that the turnover plate is turned over to the maximum from horizontal to vertical, and the power of the turnover hydraulic cavity is connected with a power component;

the power assembly comprises a hydraulic box fixedly mounted on the connecting seat, the hydraulic box is connected with a hydraulic driving rod, the top end of the hydraulic driving rod is connected with a chain wheel seat, a chain wheel is mounted on the chain wheel seat, a chain is mounted on the chain wheel in a meshed mode, one end of the chain is fixedly connected with the lifting seat, the other end of the chain is fixedly connected with the lifting connecting seat, the lifting connecting seat is fixedly mounted on the hydraulic box, the lifting connecting seat is in power connection with a hydraulic distribution assembly and used for controlling the lifting connecting seat to move, and the weight of goods on the fork is converted into driving force to drive the overturning piston to move.

Optionally, the standing groove front end is equipped with two sets of limit blocks, is equipped with between two sets of limit blocks and dodges the mouth for install the upset board and supply the upset board to do the upset action, the front end of gear board is connected with the conflict seat, and the conflict seat is used for carrying out the position of conflict restriction gear board with the stopper.

Optionally, tip UNICOM has flexible chamber behind the fork body standing groove, installs the flexible spring pole in the flexible chamber, and flexible spring pole end connection has the expansion plate, and expansion plate local adaptation is installed in flexible chamber, the elastometer is installed to flexible spring pole for monitor flexible spring pole elasticity, and electric connection hydraulic distribution subassembly control lift connecting seat activity.

Optionally, the hydraulic distribution assembly includes the connecting plate with lift connecting seat fixed connection, the connecting plate is connected with the hydraulic ram, the hydraulic ram adaptation is connected with the hydraulic cylinder, hydraulic cylinder fixed mounting is on the hydraulic tank, the hydraulic cylinder is connected with the shunt tubes, shunt tubes and upset hydraulic pressure chamber UNICOM install the governing valve subassembly in the hydraulic cylinder for control opening and close of shunt tubes.

Optionally, the governing valve subassembly includes the valve body of adaptation installation in the hydraulic cylinder, and the centre bore has been seted up at the valve body center, and the shunt outlet with centre bore UNICOM has been seted up to the valve body side, and the guide block is installed to shunt outlet and shunt tube, valve body week side, has seted up the guide way that supplies the guide block to remove on the hydraulic cylinder inner wall, threaded column is installed to the screw thread in the centre bore, and threaded column upwards extends and installs the sealing plug for seal hydraulic cylinder top, threaded column top is connected with the threaded rod, and the threaded rod is inside to be offered and is moved the chamber, and the threaded column can reciprocate install in the chamber that moves on the top, installs the elastic rod between threaded column and the chamber inner wall that moves on the top, and threaded rod power is connected with the motor for driving the threaded rod and rotates, be equipped with the cut-off valve on the shunt tube.

Optionally, the top moves the intracavity portion and has seted up vertical restriction groove, screw thread post both sides integrated into one piece limited piece, and limited piece adaptation is installed in the restriction groove, and the restriction screw thread post only can reciprocate in the top moves the intracavity.

Optionally, the fixing base is installed at the hydraulic cylinder top, and the fixing base is connected with the motor cabinet, motor cabinet fixed mounting on the hydraulic tank, motor power is connected with drive gear, and drive gear meshing is connected with the ring gear, and the ring gear adaptation is connected with the installation cover, and the ring gear is rotatable to be installed in the installation cover, has offered the screw hole in the ring gear, and the threaded rod adaptation is installed in the ring gear to through nut locking.

Optionally, a distance meter is installed on the lifting seat and is used for detecting the distance between the goods and the lifting seat.

Optionally, anti-skid patterns are arranged on the upper surface of the fork body.

Optionally, the portal top is equipped with range finding sensor for detect the height of sprocket, place sprocket and portal contact.

The hydraulic driving structure of the hydraulic control omnidirectional forklift truck has the advantages that the hydraulic driving structure is driven by the oil pump to lift the hydraulic driving rod, the top driving chain wheel is lifted, so that the chain pulls the fork to lift, when the goods lift to a certain height, the hydraulic distribution assembly releases the limitation on the lifting connecting seat, the chain pulls the lifting connecting seat to lift under the left and right gravity of the goods, so that driving force is given to the hydraulic distribution assembly, oil is pumped into the overturning hydraulic cavity, the overturning piston is driven, the driving gear plate is meshed with the tooth-missing gear to rotate after the overturning piston is driven, the overturning plate is overturned to a vertical state from a horizontal state, the front end of the goods is protected, the hydraulic distribution assembly limits the lifting connecting seat again, and the hydraulic driving rod continuously lifts the goods, so that the goods can be normally forked. Because the goods front end is located to the roll-over board to when getting on goods, the roll-over board is the horizontality, when not influencing the goods of getting on, can also protect the goods, places the goods landing, has promoted the security.

Drawings

In order to more clearly illustrate the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only of the invention and that other drawings can be obtained from them without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of a hydraulic driving structure of a hydraulic control omni-directional truck according to an embodiment of the present invention;

fig. 2 is a schematic diagram II of a hydraulic driving structure of a hydraulic control omni-directional truck according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a hydraulic driving structure fork of a hydraulic control omni-directional truck-mounted forklift according to an embodiment of the present invention;

Fig. 4 is a cross-sectional view of a hydraulic drive structure fork of a hydraulically controlled omni-directional truck-mounted forklift in accordance with an embodiment of the present invention;

FIG. 5 is an enlarged schematic view of a portion A of FIG. 4;

FIG. 6 is a schematic view of the operating state of FIG. 5;

fig. 7 is a schematic diagram of a power assembly of a hydraulic driving structure of a hydraulic control omni-directional truck according to an embodiment of the present invention;

fig. 8 is a schematic diagram of a second power assembly of a hydraulic driving structure of a hydraulic control omni-directional truck according to an embodiment of the present invention;

FIG. 9 is a partially enlarged schematic illustration of portion B of FIG. 8;

FIG. 10 is a schematic cross-sectional view of a regulator valve assembly.

Marked in the figure as:

101. Connecting seat, 102, portal, 103, lifting rail, 201, fork, 202, lifting seat, 203, range finder, 204, fork body, 205, expansion plate, 206, turnover plate, 207, axle seat, 208, turnover shaft, 209, stopper, 210, placing groove, 211, tooth-missing gear, 212, connection frame, 2041, expansion cavity, 2042, expansion spring rod, 2051, turnover hydraulic cavity, 2052, turnover piston, 2053, gear plate, 2054, interference seat, 301, power assembly, 302, hydraulic box, 303, hydraulic driving rod, 304, sprocket seat, 305, sprocket, 306, chain, 307, lifting connecting seat, 308, connecting plate, 309, motor seat, 310, fixing seat, 311, hydraulic ram, 312, hydraulic cylinder, 313, shunt tube, 314, mounting sleeve, 315, gear ring, 316, threaded rod, 317, motor, 318, driving gear, 319, valve body, 3191, shunt opening, 3192, guide block, 320, guide groove, 321, 322, threaded column, 323, sealing plug, 324, sealing plug, and elastic groove 325.

Detailed Description

The present invention will be further described in detail with reference to specific embodiments in order to make the objects, technical solutions and advantages of the present invention more apparent.

It is to be noted that unless otherwise defined, technical or scientific terms used herein should be taken in a general sense as understood by one of ordinary skill in the art to which the present invention belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

As shown in fig. 1 to 10, a specific embodiment of the present invention provides a hydraulic driving structure of a hydraulic control omni-directional truck-mounted forklift, which comprises a connection seat 101 for fixing on the forklift, a portal frame 102 is installed on the connection seat 101, a lifting rail 103 is arranged on the inner side of the portal frame 102, and a fork 201 is adaptively installed in the lifting rail 103;

The pallet fork 201 comprises a lifting seat 202 which is adaptively arranged in a lifting rail 103, two groups of fork bodies 204 are fixedly arranged on the lifting seat 202, a placing groove 210 is formed in each fork body 204, a telescopic plate 205 is arranged in each placing groove 210, a turning hydraulic cavity 2051 is formed in each telescopic plate 205, a turning piston 2052 is adaptively arranged in each turning hydraulic cavity 2051, each turning piston 2052 is connected with a gear plate 2053, each gear plate 2053 is in meshed connection with a tooth-missing gear 211, each tooth-missing gear 211 is connected with a turning shaft 208, each turning shaft 208 is connected with a connecting frame 212, the end part of each turning shaft 208 is connected with a shaft seat 207, each shaft seat 207 is arranged at the top end of each telescopic plate 205, each connecting frame 212 is integrally formed with a turning plate 206, each tooth-missing gear 211 is in meshed transmission with each gear plate 2053, so that the turning plate 206 is turned from horizontal to vertical to the maximum, and each turning hydraulic cavity 2051 is in power connection with a power component 301;

The power assembly 301 comprises a hydraulic box 302 fixedly mounted on the connecting base 101, the hydraulic box 302 is connected with a hydraulic driving rod 303, the top end of the hydraulic driving rod 303 is connected with a chain wheel seat 304, a chain wheel 305 is mounted on the chain wheel seat 304, a chain 306 is mounted on the chain wheel 305 in a meshed mode, one end of the chain 306 is fixedly connected with the lifting base 202, the other end of the chain 306 is fixedly connected with a lifting connecting base 307, the lifting connecting base 307 is fixedly mounted on the hydraulic box 302, the lifting connecting base 307 is in power connection with a hydraulic distribution assembly and used for controlling the lifting connecting base 307 to move, and the weight of goods on the fork 201 is converted into driving force to drive the overturning piston 2052 to move.

When the fork truck forks the goods, the hydraulic box 302 is used for supplying oil, the oil pump drives the hydraulic driving rod 303 to lift, the top driving chain wheel 305 lifts, so that the chain 306 pulls the fork 201 to lift, the lifting seat 202 of the fork 201 lifts along the lifting rail 103, at this time, the hydraulic distribution assembly controls the lifting connection seat 307 to be unable to do lifting movement, when the goods lift to a certain height, the hydraulic distribution assembly releases the limitation on the lifting connection seat 307, the chain 306 pulls the lifting connection seat 307 to lift under the gravity of the goods, thereby driving the hydraulic distribution assembly, and further pumping oil into the overturning hydraulic cavity 2051, so that the overturning piston 2052 is driven, the driving gear plate 2053 is meshed with the tooth-missing gear 211 to rotate, so that the overturning plate 206 overturns from a horizontal state to a vertical state, the front end of the goods is protected, then the hydraulic distribution assembly limits the lifting connection seat 307 again, and the hydraulic driving rod 303 continuously lifts the goods, so that the goods can be normally forked. Because the turnover plate 206 is arranged at the front end of the goods, and when the goods are loaded, the turnover plate 206 is in a horizontal state, the goods can be protected while the goods are not affected, and the goods are placed to slide down, so that the safety is improved.

In some alternative embodiments, as shown in fig. 1 to 6, two sets of limiting blocks 209 are disposed at the front end of the placement groove 210, and an avoidance opening is disposed between the two sets of limiting blocks 209, for installing the overturning plate 206 and enabling the overturning plate 206 to perform an overturning action, and an abutting seat 2054 is connected to the front end of the gear plate 2053, where the abutting seat 2054 is used for abutting against the limiting block 209 to limit the position of the gear plate 2053. In use, after the gear plate 2053 drives the overturning plate 206 to overturn and erect, the abutting seat 2054 abuts against the fiber with the limiting block 209, so as to prevent the gear plate 2053 from extending.

In some alternative embodiments, as shown in fig. 1 to 6, the rear end portion of the placement groove 210 of the fork 204 is communicated with a telescopic cavity 2041, a telescopic spring rod 2042 is installed in the telescopic cavity 2041, the end portion of the telescopic spring rod 2042 is connected with a telescopic plate 205, the telescopic plate 205 is installed in the telescopic cavity 2041 in a locally adapting manner, and the telescopic spring rod 2042 is installed with an elastometer for monitoring the elasticity of the telescopic spring rod 2042 and is electrically connected with a hydraulic distribution assembly to control the movement of the lifting connection seat 307. When the gear plate 2053 abuts against the stopper 209, the expansion plate 205 is retracted, so as to compress the expansion spring rod 2042, and when the elastometer detects the increase of the elastic force, it is determined that the overturning plate 206 has completed overturning at this time, and the hydraulic distribution assembly controls the lifting connection seat 307 to move.

In some alternative embodiments, as shown in fig. 1 to 10, the hydraulic distribution assembly includes a connection plate 308 fixedly connected to the lifting connection seat 307, the connection plate 308 is connected with a hydraulic ejector rod 311, the hydraulic ejector rod 311 is adaptively connected with a hydraulic cylinder 312, the hydraulic cylinder 312 is fixedly mounted on the hydraulic tank 302, the hydraulic cylinder 312 is connected with a shunt pipe 313, the shunt pipe 313 is communicated with the overturning hydraulic cavity 2051, and a regulating valve assembly is mounted in the hydraulic cylinder 312 and used for controlling the opening and closing of the shunt pipe 313. In use, when the shunt 313 is closed, the lifting connection seat 307 cannot be lifted under the action of the hydraulic pressure in the hydraulic cylinder 312, and after the shunt 313 is opened, part of the hydraulic oil in the hydraulic cylinder 312 is pressed into the shunt 313 to drive the inversion plate 206 to invert.

In some alternative embodiments, as shown in fig. 9, the adjusting valve assembly includes a valve body 319 that is adaptively installed in the hydraulic cylinder 312, a central hole is formed in the center of the valve body 319, a shunt opening 3191 that is communicated with the central hole is formed in a side surface of the valve body 319, the shunt opening 3191 is matched with the shunt tube 313, a guide block 3192 is installed on a peripheral side of the valve body 319, a guide groove 320 that is used for moving the guide block 3192 is formed in an inner wall of the hydraulic cylinder 312, a threaded column 322 is installed in the central hole in a threaded manner, a sealing plug 321 is installed in the threaded column 322 in an upward extending manner, and is used for sealing a top end of the hydraulic cylinder 312, a threaded rod 316 is connected to the top end of the threaded column 322, a top moving cavity is formed in the threaded rod 316, an elastic rod 325 is installed between the threaded column 322 and an inner wall of the top moving cavity, a motor 317 is connected to power of the threaded rod 316, and a cut-off valve is arranged on the shunt tube 313. When the hydraulic fork truck is used, the threaded rod 316 is driven to rotate by the motor 317 so as to drive the threaded column 322 to rotate, the threaded column 322 rotates so as to drive the valve body 319 to rotate, the valve body 319 rotates so as to enable the center hole to be communicated with the split pipe 313 through the split port 3191, thereby pumping liquid to the split pipe 313, after the liquid pumping is completed, the cut-off valve is closed, the split pipe 313 is cut off, and then the threaded column 322 continues to rotate, the valve body 319 does not rotate along with the threaded column 322 due to the limitation of the guide groove 320 on the guide block 3192, the threaded column 322 moves upwards to compress the elastic rod 325 until the threaded column 322 is completely separated from the valve body 319, at the moment, the acting force of the hydraulic ejector rod 311 acts on the sealing plug 321 and finally acts on the elastic rod 325, and when the fork truck runs, goods vibration caused by jolt can be buffered by hydraulic pressure in the elastic rod 325 and the hydraulic cylinder 312, so that vibration is reduced.

In some alternative embodiments, as shown in fig. 9, a vertical limiting groove 324 is formed in the top moving cavity, limiting blocks 323 are integrally formed on two sides of the threaded column 322, and the limiting blocks 323 are adapted to be installed in the limiting groove 324, so that the threaded column 322 can only move up and down in the top moving cavity.

In some alternative embodiments, as shown in fig. 7 to 10, a fixed seat 310 is installed at the top of the hydraulic cylinder 312, the fixed seat 310 is connected with a motor seat 309, the motor seat 309 is fixedly installed on the hydraulic tank 302, the motor 317 is dynamically connected with a driving gear 318, the driving gear 318 is in meshed connection with a gear ring 315, the gear ring 315 is adaptively connected with a mounting sleeve 314, the gear ring 315 is rotatably installed in the mounting sleeve 314, a threaded hole is formed in the gear ring 315, and a threaded rod 316 is adaptively installed in the gear ring 315 and is locked by a nut. In use, the gear ring 315 is driven to rotate by the driving gear 318, so as to drive the threaded rod 316 to rotate, and further drive the threaded column 322 to rotate, so as to drive the threaded column 322 to move up and down inside the threaded rod 316.

In some alternative embodiments, as shown in fig. 2, a distance meter 203 is installed on the lifting seat 202, and is used for detecting the distance between the cargo and the lifting seat 202, so as to ensure that the cargo is stabilized on the fork.

In some alternative embodiments, as shown in fig. 1-2, the upper surface of the fork 204 is provided with anti-slip features.

In some alternative implementations, a distance measuring sensor is provided on top of the gantry 102 for detecting the height of the sprocket 305, and the sprocket 305 is placed in contact with the gantry 102.

When the fork truck is used for forking goods, the hydraulic box 302 is used for supplying oil, the oil pump is used for driving the hydraulic driving rod 303 to rise, the top driving chain wheel 305 rises, the chain 306 is used for pulling the fork 201 to rise, the lifting seat 202 of the fork 201 rises along the lifting rail 103, at the moment, the hydraulic distribution assembly is used for controlling the lifting connecting seat 307 to be unable to do lifting movement, when the goods rise to a certain height, the hydraulic distribution assembly is used for removing the limitation on the lifting connecting seat 307, the chain 306 is used for pulling the lifting connecting seat 307 to rise under the left and right of the weight of the goods, so that the hydraulic distribution assembly is driven, the oil is pumped into the overturning hydraulic cavity 2051, the overturning piston 2052 is driven, the driving gear plate 2053 is meshed with the tooth-lacking gear 211 to rotate, the overturning plate 206 is overturned from a horizontal state to a vertical state, the front end of the goods is protected, the hydraulic distribution assembly is used for limiting the lifting connecting seat 307 again, and the goods can be forked normally. Because the turnover plate 206 is arranged at the front end of the goods, and when the goods are loaded, the turnover plate 206 is in a horizontal state, the goods can be protected while the goods are not affected, and the goods are placed to slide down, so that the safety is improved.

When the hydraulic fork truck is used, the threaded rod 316 is driven to rotate by the motor 317 so as to drive the threaded column 322 to rotate, the threaded column 322 rotates so as to drive the valve body 319 to rotate, the valve body 319 rotates so as to enable the center hole to be communicated with the split pipe 313 through the split port 3191, thereby pumping liquid to the split pipe 313, after the liquid pumping is completed, the cut-off valve is closed, the split pipe 313 is cut off, and then the threaded column 322 continues to rotate, the valve body 319 does not rotate along with the threaded column 322 due to the limitation of the guide groove 320 on the guide block 3192, the threaded column 322 moves upwards to compress the elastic rod 325 until the threaded column 322 is completely separated from the valve body 319, at the moment, the acting force of the hydraulic ejector rod 311 acts on the sealing plug 321 and finally acts on the elastic rod 325, and when the fork truck runs, goods vibration caused by jolt can be buffered by hydraulic pressure in the elastic rod 325 and the hydraulic cylinder 312, so that vibration is reduced.

It will be appreciated by persons skilled in the art that the foregoing discussion of any embodiment is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples, that combinations of technical features in the foregoing embodiments or in different embodiments may be implemented in any order and that many other variations of the different aspects of the invention as described above may exist within the spirit of the invention, and that they are not provided in detail for clarity.

The present invention is intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, improvement, etc. of the present invention should be included in the scope of the present invention.

Claims

1. A hydraulic drive structure for a hydraulically controlled omnidirectional forklift, comprising a connecting seat (101) for fixing to the forklift, a mast (102) mounted on the connecting seat (101), a lifting rail (103) provided inside the mast (102), and forks (201) adapted to be installed in the lifting rail (103), characterized in that the forks (201) include a lifting seat (202) adapted to be installed in the lifting rail (103), two sets of fork bodies (204) fixedly mounted on the lifting seat (202), a placement groove (210) provided on the fork body (204), a telescopic plate (205) installed in the placement groove (210), and a tilting hydraulic chamber (2051) provided inside the telescopic plate (205). The device is fitted with a flip piston (2052), which is connected to a gear plate (2053). The gear plate (2053) is meshed with a toothed gear (211). The toothed gear (211) is connected to a flip shaft (208). The flip shaft (208) is connected to a connecting frame (212). The end of the flip shaft (208) is connected to a bearing seat (207). The bearing seat (207) is installed on the top of the telescopic plate (205). The connecting frame (212) is integrally formed with a flip plate (206). The toothed gear (211) is used to mesh with the gear plate (2053) to drive the flip plate (206) to flip to the maximum extent from horizontal to vertical. The flip hydraulic chamber (2051) is powered by a power assembly (301).

The power assembly (301) includes a hydraulic tank (302) fixedly installed on the connecting seat (101). The hydraulic tank (302) is connected to a hydraulic drive rod (303). The top end of the hydraulic drive rod (303) is connected to a sprocket seat (304). A sprocket (305) is installed on the sprocket seat (304). A chain (306) is meshed on the sprocket (305). One end of the chain (306) is fixedly connected to the lifting seat (202), and the other end is fixedly connected to the lifting connecting seat (307). The lifting connecting seat (307) is fixedly installed on the hydraulic tank (302). The lifting connecting seat (307) is poweredly connected to a hydraulic distribution assembly, which is used to control the movement of the lifting connecting seat (307) and convert the weight of the goods on the forks (201) into driving force to drive the tilting piston (2052) to move.

The hydraulic distribution assembly includes a connecting plate (308) fixedly connected to the lifting connecting seat (307), a hydraulic push rod (311) connected to the connecting plate (308), a hydraulic cylinder (312) adapted to the hydraulic push rod (311), the hydraulic cylinder (312) fixedly installed on the hydraulic box (302), the hydraulic cylinder (312) connected to a diversion pipe (313), the diversion pipe (313) communicating with the tilting hydraulic chamber (2051), and a regulating valve assembly installed in the hydraulic cylinder (312) for controlling the opening and closing of the diversion pipe (313).

2. The hydraulic drive structure of a hydraulically controlled omnidirectional forklift according to claim 1, characterized in that the front end of the placement slot (210) is provided with two sets of limiting blocks (209), and an avoidance opening is provided between the two sets of limiting blocks (209) for installing a flip plate (206) and for the flip plate (206) to perform a flipping action, and the front end of the gear plate (2053) is connected to an abutment seat (2054), the abutment seat (2054) is used to abut against the limiting blocks (209) to limit the position of the gear plate (2053).

3. The hydraulic drive structure of a hydraulically controlled omnidirectional forklift according to claim 2, characterized in that the rear end of the fork body (204) placement groove (210) is connected to a telescopic cavity (2041), a telescopic spring rod (2042) is installed in the telescopic cavity (2041), a telescopic plate (205) is connected to the end of the telescopic spring rod (2042), the telescopic plate (205) is partially adapted and installed in the telescopic cavity (2041), and a force gauge is installed on the telescopic spring rod (2042) to monitor the elastic force of the telescopic spring rod (2042) and electrically connect to the hydraulic distribution component to control the movement of the lifting connecting seat (307).

4. The hydraulic drive structure of a hydraulically controlled omnidirectional forklift according to claim 1, characterized in that the regulating valve assembly includes a valve body (319) adapted to be installed in a hydraulic cylinder (312), a central hole is provided in the center of the valve body (319), a flow divider (3191) communicating with the central hole is provided on the side of the valve body (319), the flow divider (3191) cooperates with the flow divider pipe (313), a guide block (3192) is installed on the periphery of the valve body (319), and a guide groove (320) for the guide block (3192) to move is provided on the inner wall of the hydraulic cylinder (312), the central hole A threaded column (322) is installed in the middle thread, and a sealing plug (321) is installed on the threaded column (322) extending upward to seal the top of the hydraulic cylinder (312). A threaded rod (316) is connected to the top of the threaded column (322), and a jacking cavity is opened inside the threaded rod (316). The threaded column (322) is installed in the jacking cavity and can move up and down. An elastic rod (325) is installed between the threaded column (322) and the inner wall of the jacking cavity. The threaded rod (316) is powered by a motor (317) to drive the threaded rod (316) to rotate. A shut-off valve is provided on the diverter pipe (313).

5. The hydraulic drive structure of a hydraulically controlled omnidirectional forklift according to claim 4, characterized in that a vertical limiting groove (324) is provided inside the jacking cavity, and limiting blocks (323) are integrally formed on both sides of the threaded column (322). The limiting blocks (323) are adapted to be installed in the limiting groove (324), limiting the threaded column (322) to only move up and down in the jacking cavity.

6. The hydraulic drive structure of a hydraulically controlled omnidirectional forklift according to claim 5, characterized in that a fixed seat (310) is installed on the top of the hydraulic cylinder (312), the fixed seat (310) is connected to a motor seat (309), the motor seat (309) is fixedly installed on the hydraulic tank (302), the motor (317) is powered by a drive gear (318), the drive gear (318) is meshed with a gear ring (315), the gear ring (315) is adapted to be connected to an mounting sleeve (314), the gear ring (315) is rotatably installed in the mounting sleeve (314), a threaded hole is opened in the gear ring (315), a threaded rod (316) is adapted to be installed in the gear ring (315) and locked by a nut.

7. The hydraulic drive structure of a hydraulically controlled omnidirectional forklift according to claim 1, characterized in that a rangefinder (203) is installed on the lifting seat (202) for detecting the distance between the goods and the lifting seat (202).

8. The hydraulic drive structure of a hydraulically controlled omnidirectional forklift according to claim 1, characterized in that the upper surface of the fork (204) is provided with anti-slip texture.

9. The hydraulic drive structure of a hydraulically controlled omnidirectional forklift according to claim 1, characterized in that a distance sensor is provided on the top of the mast (102) for detecting the height of the sprocket (305) and placing the sprocket (305) in contact with the mast (102).