A steering mechanism of an AGV

By combining the gearbox assembly and steering drive assembly with the differential and rotation mechanism, the problems of small steering angle and complex structure of AGV trolleys are solved, achieving rapid steering and cost reduction, while improving operational stability.

CN117446001BActive Publication Date: 2026-06-23XIAMEN UNIV OF TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XIAMEN UNIV OF TECH
Filing Date
2023-12-12
Publication Date
2026-06-23

Smart Images

  • Figure CN117446001B_ABST
    Figure CN117446001B_ABST
Patent Text Reader

Abstract

The application relates to the technical field of steering mechanisms, and discloses a steering mechanism of an AGV (Automatic Guided Vehicle), which comprises a gearbox assembly, rotatingly connected with a rotating plate assembly on both sides of the gearbox assembly, a supporting assembly rotatingly connected with the inner wall of the side, away from the gearbox assembly, of the rotating plate assembly, a transmission shaft assembly rotatingly connected with the inner wall of the supporting assembly, hydraulic rods rotatingly connected with the top of both sides of the gearbox assembly, a damping assembly rotatingly connected with the inner wall of the rotating plate assembly, and a steering driving assembly rotatingly connected with the inner wall of the transmission shaft assembly. The inner walls of rotating shaft two and rotating rod one are connected through magnetic coupling, torque measuring devices are arranged on both sides of the extrusion plate, the ball head pin can rotate around rotating shaft two, the ball head pin can drive rotating rod one to rotate through rotating shaft two, rotating rod one rotates through the extrusion plate, the extrusion plate realizes pressure pressing on one of the two groups of torque measuring devices, and the torque measuring devices realize pressure monitoring.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of steering mechanism technology, specifically to a steering mechanism for an AGV (Automated Guided Vehicle). Background Technology

[0002] Automated Guided Vehicles (AGVs), also known as AGV carts, are transport vehicles equipped with electromagnetic or optical automatic guidance devices. They are capable of traveling along a predetermined guided path, possessing safety protection and various transfer functions. In industrial applications, they are driverless transport vehicles powered by rechargeable batteries. Their movement and behavior are typically controlled by a computer, or their routes are established using electromagnetic tracks attached to the floor. The AGV moves and operates based on the signals transmitted through these tracks.

[0003] Conventional AGVs have a small turning angle range, require more time to turn, and have a relatively complex structure and high manufacturing cost. To address these issues, we propose a new steering mechanism for AGVs. Summary of the Invention

[0004] This invention provides a steering mechanism for AGV (Automated Guided Vehicle) vehicles, which solves the problems mentioned in the background art.

[0005] The present invention provides the following technical solution: a steering mechanism for an AGV (Automated Guided Vehicle) trolley, comprising a gearbox assembly, a rotating plate assembly rotatably connected to both sides of the gearbox assembly, a support assembly rotatably connected to the inner wall of the rotating plate assembly on the side away from the gearbox assembly, a drive shaft assembly rotatably connected to the inner wall of the support assembly, hydraulic rods rotatably connected to both sides of the top of the gearbox assembly, a shock-absorbing assembly rotatably connected to the inner wall of the rotating plate assembly, and a steering drive assembly rotatably connected to the inner wall of the drive shaft assembly.

[0006] As a preferred technical solution of the present invention: the gearbox assembly includes a gearbox body, both sides of the gearbox body are fixedly mounted with connecting shafts, both sides of the gearbox body are provided with power output connection holes, the front of the gearbox body is provided with a power input connection hole, the top of the gearbox body is provided with an installation platform, the top of the gearbox body is fixedly mounted with a support platform, and the top of the support platform is rotatably connected with a connecting panel.

[0007] As a preferred embodiment of the present invention: a rotating mechanism is embedded in the top inner cavity of the support platform, the connecting panel is connected to the support platform through the rotating mechanism, and a differential is provided in the inner cavity of the gearbox body.

[0008] As a preferred technical solution of the present invention: the rotating plate assembly includes a rotating plate body, a first rotating seat is fixedly mounted on the side of the rotating plate body near the gearbox assembly, a second rotating groove is opened in the middle of the rotating plate body near the shock absorption assembly, and a first rotating groove is opened on the side of the rotating plate body away from the gearbox assembly.

[0009] The rotating plate assembly is rotatably connected via a first rotating base and a connecting shaft.

[0010] As a preferred technical solution of the present invention: the support assembly includes a support body, the outer wall of the support body is provided with an installation groove, the side outer wall of the support body is provided with a fixed rotating shaft, the outer wall of the support body away from the gearbox assembly is fixedly fitted with an installation bracket, and the top of the installation bracket is fixedly fitted with a torque assembly.

[0011] The support assembly is rotatably connected to the inner wall of the first rotating groove via a fixed rotating shaft, and the transmission shaft assembly is disposed on the inner wall of the mounting groove.

[0012] As a preferred embodiment of the present invention: the torque assembly includes a torque housing, the bottom of the torque housing has a connecting groove, the top of the inner wall of the torque housing is fixedly fitted with a support shaft seat, the inner wall of the support shaft seat is rotatably connected to a rotating rod two, the bottom of the rotating rod two is fixedly fitted with a rotating rod one, the outer wall of the rotating rod one is fixedly fitted with an extrusion plate, torque measuring instruments are provided on both sides of the extrusion plate, two sets of torque measuring instruments are fixedly fitted to the inner wall of the torque housing, and the rotating rod one is rotatably connected to the top of the connecting groove.

[0013] As a preferred embodiment of the present invention: the drive shaft assembly includes a ball joint pin, with rotating holes extending through the outer walls of both sides of the ball joint pin; a tension plate is fixedly mounted on the outer wall of the ball joint pin; a rotating shaft one is fixedly mounted on the lower part of the ball joint pin near the hydraulic rod; a rotating shaft two is fixedly mounted on the upper part of the ball joint pin near the hydraulic rod; a wheel connecting rod is rotatably connected to the inner wall of the rotating hole; a universal joint is rotatably connected to the wheel connecting rod near the hydraulic rod; and a drive shaft body is rotatably connected to the universal joint on the side away from the support assembly.

[0014] As a preferred technical solution of the present invention: the drive shaft assembly is rotatably connected to the inner wall of the mounting groove through rotating shaft one and rotating shaft two; the inner wall of rotating shaft two and rotating rod one are connected by magnetic coupling; the side of the drive shaft body away from the universal joint is connected to the power output connection hole; and the side of the wheel connecting rod away from the hydraulic rod is connected to the wheel.

[0015] As a preferred technical solution of the present invention: the shock absorption component includes a connecting seat one, one end of a spring is sleeved on the outer edge of the connecting seat one, the other end of the spring is sleeved on the connecting seat two, a hydraulic slide rod is fixedly assembled on the side of the connecting seat two near the connecting seat one, and a damping ring is sleeved on the outer edge of the hydraulic slide rod.

[0016] The end of the hydraulic slide rod away from the second connecting seat is slidably sleeved with the inner wall of the first connecting seat. The first connecting seat and the top outer wall of the gearbox body away from the support platform are rotatably connected. The second connecting seat and the inner wall of the second rotating groove are rotatably connected.

[0017] As a preferred technical solution of the present invention: the steering drive assembly includes a tie rod, a slide plate is fixedly mounted on the top of the tie rod, and a drive compartment is provided on the outer wall of the slide plate near the gearbox assembly;

[0018] The inner cavity of the drive compartment is equipped with a linear drive structure, which can drive the slide plate to move left and right. The two ends of the pull rod are respectively rotatably connected to two sets of tension plates.

[0019] The present invention has the following beneficial effects:

[0020] 1. The steering mechanism of this AGV is connected by magnetic coupling through the inner walls of rotating shaft two and rotating rod one. Torque measuring devices are set on both sides of the extrusion plate. When the ball head pin rotates around rotating shaft two, the ball head pin can drive rotating rod one to rotate through rotating shaft two. When rotating rod one rotates through the extrusion plate, the extrusion plate applies pressure to one of the two sets of torque measuring devices, thereby enabling the torque measuring device to monitor the pressure.

[0021] By comparing the value measured by the torque measuring device with the value of the linear drive structure in the inner cavity of the drive compartment that drives the slide plate to move left and right, the difference between the pressure of the ball joint pin rotating in the inner wall of the mounting groove when the drive shaft assembly drives the wheel to rotate at high speed and the value of the linear drive structure that drives the slide plate to move left and right can be obtained. By using this difference, the value of the linear drive structure that drives the slide plate to move left and right can be adjusted so that the two sets of ball joint pins keep the vehicle running in a straight line through the wheel connecting rod.

[0022] At the same time, by comparing the values ​​measured by the two sets of torque measuring instruments, it is possible to determine whether there is a gap in the connection between the two sets of drive shaft assemblies and steering drive assemblies.

[0023] 2. The steering mechanism of the AGV is rotatably connected to two sets of tension plates at both ends of the pull rod. The inner cavity of the drive compartment is equipped with a linear drive structure, which can drive the slide to move left and right. This allows the steering drive assembly to drive the wheels installed at the drive shaft assembly to rotate in the same direction through the support assembly.

[0024] The differential installed inside the main body of the gearbox allows the two sets of drive shaft assemblies to rotate simultaneously. At the same time, a rotating mechanism is embedded in the top cavity of the support platform. The connecting panel is connected to the support platform through this rotating mechanism. When the structure is installed with a vehicle undercarriage, the rotating mechanism can drive the support platform, causing the support platform and the connecting panel to rotate and connect. This allows the wheels connected to the side of the two sets of drive shaft assemblies away from the gearbox assembly to rotate around the support platform as the axis, thereby increasing the rotation angle achieved by the steering mechanism and enabling the vehicle to turn at a smaller angle. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0026] Figure 2 This is a schematic diagram of the reverse side structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the gearbox assembly structure of the present invention;

[0028] Figure 4 This is a partial structural diagram of the present invention;

[0029] Figure 5 This is a schematic diagram of the supporting component structure of the present invention;

[0030] Figure 6 This is a schematic diagram of the rotating plate assembly structure of the present invention;

[0031] Figure 7 This is a schematic diagram of the shock absorption component structure of the present invention;

[0032] Figure 8 This is a schematic diagram of the torque component structure of the present invention.

[0033] In the diagram: 1. Gearbox assembly; 2. Turning plate assembly; 3. Support assembly; 4. Drive shaft assembly; 5. Hydraulic rod; 6. Shock absorption assembly; 7. Steering drive assembly;

[0034] 101. Gearbox body; 102. Connecting shaft; 103. Power output connection hole; 104. Power input connection hole; 105. Mounting platform; 106. Support platform; 107. Connecting panel;

[0035] 201. Rotating plate body; 202. First rotating groove; 203. Second rotating groove; 204. First rotating base;

[0036] 301. Support body; 302. Mounting groove; 303. Fixed pivot; 304. Mounting support plate; 305. Torque assembly;

[0037] 3051. Torque housing; 3052. Connecting slot; 3053. Rotary rod one; 3054. Rotary rod two; 3055. Support shaft seat; 3056. Extrusion plate; 3057. Torque measuring instrument;

[0038] 401. Ball joint pin; 402. Rotating hole; 403. Tension plate; 404. Rotating shaft one; 405. Rotating shaft two; 406. Wheel connecting rod; 407. Universal joint; 408. Drive shaft body;

[0039] 601. Connecting seat one; 602. Spring; 603. Damping ring; 604. Hydraulic slide rod; 605. Connecting seat two;

[0040] 701. Pull rod; 702. Skateboard; 703. Drive compartment. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Please see Figure 1-8 A steering mechanism for an AGV (Automated Guided Vehicle) includes a gearbox assembly 1, a rotating plate assembly 2 rotatably connected to both sides of the gearbox assembly 1, a support assembly 3 rotatably connected to the inner wall of the rotating plate assembly 2 on the side away from the gearbox assembly 1, a drive shaft assembly 4 rotatably connected to the inner wall of the support assembly 3, hydraulic rods 5 rotatably connected to both sides of the top of the gearbox assembly 1, a shock absorption assembly 6 rotatably connected to the inner wall of the rotating plate assembly 2, and a steering drive assembly 7 rotatably connected to the inner wall of the drive shaft assembly 4.

[0043] In a preferred embodiment: the gearbox assembly 1 includes a gearbox body 101, with connecting shafts 102 fixedly mounted on both sides of the gearbox body 101, power output connection holes 103 provided on both sides of the gearbox body 101, power input connection holes 104 provided on the front of the gearbox body 101, a mounting platform 105 provided on the top of the gearbox body 101, a support platform 106 fixedly mounted on the top of the gearbox body 101, and a connecting panel 107 rotatably connected to the top of the support platform 106.

[0044] In a preferred embodiment: a rotating mechanism is embedded in the top cavity of the support platform 106, the connecting panel 107 is connected to the support platform 106 through the rotating mechanism, and a differential is provided in the cavity of the gearbox body 101.

[0045] In the above structure, the differential installed in the inner cavity of the gearbox body 101 allows the two sets of drive shaft assemblies 4 to rotate simultaneously. At the same time, a rotating mechanism is embedded in the top inner cavity of the support platform 106. The connecting panel 107 is connected to the support platform 106 through this rotating mechanism. When the structure is provided with a vehicle bottom, the rotating mechanism can drive the support platform 106, causing the support platform 106 and the connecting panel 107 to rotate and connect. This allows the wheels connected to the side of the two sets of drive shaft assemblies 4 away from the gearbox assembly 1 to rotate around the support platform 106 as the axis, thereby increasing the rotation angle achieved by the steering mechanism and enabling the vehicle to turn at a smaller angle.

[0046] In a preferred embodiment: the rotating plate assembly 2 includes a rotating plate body 201, a first rotating seat 204 is fixedly mounted on the side of the rotating plate body 201 near the gearbox assembly 1, a second rotating groove 203 is opened on the side of the rotating plate body 201 near the shock absorption assembly 6, and a first rotating groove 202 is opened on the side of the rotating plate body 201 away from the gearbox assembly 1.

[0047] The rotating plate assembly 2 is rotatably connected to the first rotating base 204 and the connecting shaft 102.

[0048] In the above structure, the vehicle mounted on the drive shaft assembly 4 is rotatably connected to the gearbox assembly 1 via the two sets of rotating plate assemblies 2, so that the vehicle can rotate with the gearbox assembly 1 via the rotating plate assemblies 2. Thus, when the vehicle is running, the force of its vibration can be reduced by the rotation of the rotating plate assemblies 2 and the gearbox assembly 1 and the energy conversion of the shock absorber assembly 6.

[0049] In a preferred embodiment: the support assembly 3 includes a support body 301, the outer wall of the support body 301 is provided with a mounting groove 302, the side outer wall of the support body 301 is provided with a fixed rotating shaft 303, the outer wall of the support body 301 away from the gearbox assembly 1 is fixedly fitted with a mounting plate 304, and the top of the mounting plate 304 is fixedly fitted with a torque assembly 305.

[0050] The support assembly 3 is rotatably connected to the inner wall of the first rotating groove 202 via a fixed rotating shaft 303, and the transmission shaft assembly 4 is disposed on the inner wall of the mounting groove 302.

[0051] In a preferred embodiment: the torque assembly 305 includes a torque housing 3051, the bottom of the torque housing 3051 is provided with a connecting groove 3052, the top of the inner wall of the torque housing 3051 is fixedly mounted with a support shaft seat 3055, the inner wall of the support shaft seat 3055 is rotatably connected with a second rotating rod 3054, the bottom of the second rotating rod 3054 is fixedly mounted with a first rotating rod 3053, the outer wall of the first rotating rod 3053 is fixedly mounted with a pressing plate 3056, torque measuring instruments 3057 are provided on both sides of the pressing plate 3056, the two sets of torque measuring instruments 3057 are fixedly mounted on the inner wall of the torque housing 3051, and the top of the first rotating rod 3053 is rotatably connected to the connecting groove 3052.

[0052] In a preferred embodiment: the drive shaft assembly 4 includes a ball joint pin 401, with rotating holes 402 extending through the outer walls on both sides of the ball joint pin 401. A tension plate 403 is fixedly mounted on the outer wall of the ball joint pin 401. A rotating shaft 404 is fixedly mounted on the lower part of the ball joint pin 401 near the hydraulic rod 5. A rotating shaft 405 is fixedly mounted on the upper part of the ball joint pin 401 near the hydraulic rod 5. A wheel connecting rod 406 is rotatably connected to the inner wall of the rotating hole 402. A universal joint 407 is rotatably connected to the wheel connecting rod 406 near the hydraulic rod 5. A drive shaft body 408 is rotatably connected to the universal joint 407 away from the support assembly 3.

[0053] In a preferred embodiment: the drive shaft assembly 4 is rotatably connected to the inner wall of the mounting groove 302 via a first rotating shaft 404 and a second rotating shaft 405. The inner walls of the second rotating shaft 405 and the first rotating rod 3053 are connected by magnetic coupling. The side of the drive shaft body 408 away from the universal joint 407 is connected to the power output connection hole 103. The side of the wheel connecting rod 406 away from the hydraulic rod 5 is connected to the wheel.

[0054] In the above structure, the power transmission of the wheel is realized through the wheel connecting rod 406, the universal joint 407 and the drive shaft body 408. The drive shaft assembly 4 and the support assembly 3 are rotatably connected, so that the drive shaft assembly 4 can be rotatably connected through the support assembly 3 with the rotating plate assembly 2 and the hydraulic rod 5 as the radius. At the same time, the vertical rotation of the drive shaft assembly 4 and the support assembly 3 allows the drive shaft assembly 4 to drive the wheel to adjust the angle, thereby enabling the vehicle to steer. The tension plate 403 is set so that the steering drive assembly 7 can drive the two sets of drive shaft assemblies 4 to rotate in the same direction.

[0055] The inner walls of the rotating shaft 405 and the rotating rod 3053 are connected by magnetic coupling. Torque measuring devices 3057 are set on both sides of the extrusion plate 3056, so that the ball head pin 401 rotates around the rotating shaft 405. When the ball head pin 401 drives the rotating rod 3053 to rotate through the rotating shaft 405, the rotating rod 3053 rotates through the extrusion plate 3056, so that the extrusion plate 3056 applies pressure to one of the two sets of torque measuring devices 3057, thereby enabling the torque measuring device 3057 to monitor pressure.

[0056] In a preferred embodiment: the shock absorption assembly 6 includes a first connecting seat 601, one end of a spring 602 is sleeved on the outer edge of the first connecting seat 601, the other end of the spring 602 is sleeved on a second connecting seat 605, a hydraulic slide rod 604 is fixedly mounted on the side of the second connecting seat 605 near the first connecting seat 601, and a damping ring 603 is sleeved on the outer edge of the hydraulic slide rod 604.

[0057] The end of the hydraulic slide rod 604 away from the connecting seat 605 is slidably sleeved with the inner wall of the connecting seat 601. The connecting seat 601 and the top outer wall of the gearbox body 101 away from the support platform 106 are rotatably connected. The connecting seat 605 and the inner wall of the second rotating groove 203 are rotatably connected.

[0058] In the above structure, by setting the shock absorption component 6, when the rotating plate assembly 2 and the hydraulic rod 5 drive the support assembly 3 and the transmission shaft assembly 4 to rotate, the shock absorption component 6 can provide elastic support for the rotating plate assembly 2, thereby enabling the shock absorption component 6 to achieve a shock absorption effect when the equipment is running.

[0059] In a preferred embodiment: the steering drive assembly 7 includes a tie rod 701, a slide plate 702 is fixedly mounted on the top of the tie rod 701, and a drive compartment 703 is provided on the slide plate 702 near the primary outer wall of the gearbox assembly 1;

[0060] The inner cavity of the drive chamber 703 is equipped with a linear drive structure, which can drive the slide plate 702 to move left and right. The two ends of the pull rod 701 are rotatably connected to two sets of tension plates 403 respectively.

[0061] The working principle is that the two ends of the pull rod 701 are rotatably connected to two sets of tension plates 403 respectively. The inner cavity of the drive chamber 703 is equipped with a linear drive structure, which can drive the slide plate 702 to move left and right, so that the steering drive assembly 7 drives the wheel installed at the transmission shaft assembly 4 to rotate in the same direction through the support assembly 3.

[0062] The differential installed in the inner cavity of the gearbox body 101 allows the two sets of drive shaft assemblies 4 to rotate simultaneously. At the same time, a rotating mechanism is embedded in the top inner cavity of the support platform 106. The connecting panel 107 is connected to the support platform 106 through the rotating mechanism. When the structure is provided with a vehicle bottom, the rotating mechanism can drive the support platform 106, so that the support platform 106 and the connecting panel 107 are rotatably connected. This allows the wheels connected to the side of the two sets of drive shaft assemblies 4 away from the gearbox assembly 1 to rotate around the support platform 106 as the axis, thereby increasing the rotation angle achieved by the steering mechanism and enabling the vehicle to turn at a smaller angle.

[0063] By setting up the shock absorption component 6, when the rotating plate assembly 2 and the hydraulic rod 5 drive the support assembly 3 and the drive shaft assembly 4 to rotate, the shock absorption component 6 can provide elastic support for the rotating plate assembly 2. Through the rotatable connection between the two sets of rotating plate assemblies 2 and the gearbox assembly 1, the vehicle installed at the drive shaft assembly 4 can rotate with the gearbox assembly 1 through the rotating plate assembly 2. Thus, when the vehicle is running, the vibration force can be converted by the rotation of the rotating plate assembly 2 and the gearbox assembly 1 and the energy of the shock absorption component 6 to achieve the shock absorption effect.

[0064] The inner walls of the rotating shaft 405 and the rotating rod 3053 are connected by magnetic coupling. Torque measuring devices 3057 are set on both sides of the extrusion plate 3056. When the ball pin 401 rotates around the rotating shaft 405, the ball pin 401 can drive the rotating rod 3053 to rotate through the rotating shaft 405. The rotating rod 3053 rotates through the extrusion plate 3056, so that the extrusion plate 3056 applies pressure to one of the two sets of torque measuring devices 3057, thereby enabling the torque measuring device 3057 to monitor the pressure.

[0065] By comparing the value measured by the torque measuring device 3057 with the value of the linear drive structure in the inner cavity of the drive chamber 703 driving the slide plate 702 to move left and right, the difference between the pressure of the ball head pin 401 rotating in the inner wall of the mounting groove 302 when the drive shaft assembly 4 drives the wheel to rotate at high speed and the value of the linear drive structure driving the slide plate 702 to move left and right can be obtained. By using this difference, the value of the linear drive structure driving the slide plate 702 to move left and right can be adjusted so that the two sets of ball head pins 401 keep the vehicle running in a straight line through the wheel connecting rod 406.

[0066] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0067] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steering mechanism for an AGV (Automated Guided Vehicle), comprising a gearbox assembly (1), characterized in that: The gearbox assembly (1) is rotatably connected to two sides of a rotating plate assembly (2). A support assembly (3) is rotatably connected to the inner wall of the rotating plate assembly (2) on the side away from the gearbox assembly (1). A drive shaft assembly (4) is rotatably connected to the inner wall of the support assembly (3). Hydraulic rods (5) are rotatably connected to both sides of the top of the gearbox assembly (1). A shock-absorbing assembly (6) is rotatably connected to the inner wall of the rotating plate assembly (2). A steering drive assembly (7) is rotatably connected to the inner wall of the drive shaft assembly (4). The gearbox assembly (1) includes a gearbox main... The gearbox body (101) has connecting shafts (102) fixedly mounted on both sides, power output connection holes (103) provided on both sides, power input connection holes (104) provided on the front of the gearbox body (101), an installation platform (105) provided on the top of the gearbox body (101), a support platform (106) fixedly mounted on the top of the gearbox body (101), and a connecting panel (107) rotatably connected to the top of the support platform (106). The rotating plate assembly (2) includes a rotating plate body (201), a first rotating seat (204) is fixedly mounted on the side of the rotating plate body (201) near the gearbox assembly (1), a second rotating groove (203) is opened on the side of the rotating plate body (201) near the shock absorption assembly (6), and a first rotating groove (202) is opened on the side of the rotating plate body (201) away from the gearbox assembly (1). The rotating plate assembly (2) is rotatably connected via a first rotating base (204) and a connecting shaft (102); The support assembly (3) includes a support body (301), the outer wall of the support body (301) is provided with an installation groove (302), the side outer wall of the support body (301) is provided with a fixed rotating shaft (303), the outer wall of the support body (301) away from the gearbox assembly (1) is fixedly fitted with an installation bracket (304), and the top of the installation bracket (304) is fixedly fitted with a torque assembly (305). The support assembly (3) is rotatably connected to the inner wall of the first rotating groove (202) via a fixed rotating shaft (303), and the transmission shaft assembly (4) is disposed on the inner wall of the mounting groove (302); The torque assembly (305) includes a torque housing (3051), a connecting groove (3052) is provided at the bottom of the torque housing (3051), a support shaft seat (3055) is fixedly mounted on the top of the inner wall of the torque housing (3051), a second rotating rod (3054) is rotatably connected to the inner wall of the support shaft seat (3055), a first rotating rod (3053) is fixedly mounted at the bottom of the second rotating rod (3054), an extrusion plate (3056) is fixedly mounted on the outer wall of the first rotating rod (3053), torque measuring instruments (3057) are provided on both sides of the extrusion plate (3056), two sets of torque measuring instruments (3057) are fixedly mounted on the inner wall of the torque housing (3051), and the first rotating rod (3053) and the top of the connecting groove (3052) are rotatably connected.

2. The steering mechanism of an AGV trolley according to claim 1, characterized in that: The top inner cavity of the support platform (106) is inlaid with a rotating mechanism, the connecting panel (107) is connected to the support platform (106) through the rotating mechanism, and the inner cavity of the gearbox body (101) is provided with a differential.

3. The steering mechanism of an AGV trolley according to claim 1, characterized in that: The drive shaft assembly (4) includes a ball joint pin (401), with rotating holes (402) extending through the outer walls on both sides of the ball joint pin (401). A tension plate (403) is fixedly mounted on the outer wall of the ball joint pin (401). A rotating shaft one (404) is fixedly mounted on the lower part of the ball joint pin (401) near the hydraulic rod (5). A rotating shaft two (405) is fixedly mounted on the upper part of the ball joint pin (401) near the hydraulic rod (5). A wheel connecting rod (406) is rotatably connected to the inner wall of the rotating hole (402). A universal joint (407) is rotatably connected to the side of the wheel connecting rod (406) near the hydraulic rod (5). A drive shaft body (408) is rotatably connected to the side of the universal joint (407) away from the support assembly (3).

4. The steering mechanism of an AGV trolley according to claim 3, characterized in that: The drive shaft assembly (4) is rotatably connected to the inner wall of the mounting groove (302) via rotating shaft one (404) and rotating shaft two (405). The inner walls of rotating shaft two (405) and rotating rod one (3053) are connected by magnetic coupling. The drive shaft body (408) is connected to the power output connection hole (103) on the side away from the universal joint (407). The wheel connecting rod (406) is connected to the wheel on the side away from the hydraulic rod (5).

5. The steering mechanism of an AGV trolley according to claim 1, characterized in that: The shock absorption assembly (6) includes a first connecting seat (601), one end of a spring (602) is sleeved on the outer edge of the first connecting seat (601), and the other end of the spring (602) is sleeved on a second connecting seat (605). A hydraulic slide rod (604) is fixedly mounted on the side of the second connecting seat (605) near the first connecting seat (601), and a damping ring (603) is sleeved on the outer edge of the hydraulic slide rod (604). The end of the hydraulic slide rod (604) away from the second connecting seat (605) is slidably sleeved with the inner wall of the first connecting seat (601). The first connecting seat (601) and the top outer wall of the gearbox body (101) away from the support platform (106) are rotatably connected. The second connecting seat (605) and the inner wall of the second rotating groove (203) are rotatably connected.

6. The steering mechanism of an AGV trolley according to claim 1, characterized in that: The steering drive assembly (7) includes a tie rod (701), and a slide plate (702) is fixedly mounted on the top of the tie rod (701). The slide plate (702) is provided with a drive compartment (703) near the outer wall of the gearbox assembly (1). The inner cavity of the drive chamber (703) is provided with a linear drive structure, which can drive the slide plate (702) to move left and right. The two ends of the pull rod (701) are respectively rotatably connected to two sets of tension plates (403).