Wheel-holding type transport vehicle

Abstract

The utility model relates to a wheel holding type transport vehicle which comprises a frame structure. The walking system is arranged at the bottom of the frame structure; the jacking mechanism is arranged on the frame structure and comprises a driving wedge plate capable of moving horizontally and a lifting wedge plate capable of moving vertically, and the driving wedge plate is in sliding fit with the wedge surface of the lifting wedge plate; the jacking mechanism and the wheel holding mechanism are arranged on the lifting wedge plate, the wheel holding mechanism is arranged on the lifting wedge plate and comprises a rear clamping piece capable of moving horizontally and a front clamping piece capable of moving vertically, and the rear clamping piece and the front clamping piece are correspondingly arranged. The jacking height of the jacking mechanism and the distance between the two clamping pieces of the wheel holding mechanism can be adjusted according to different sizes of airplane wheels, the adaptability is high, the production and maintenance cost is low, and the safety performance is high.

Description

Technical Field

[0001] This utility model relates to the field of aircraft traction equipment technology, specifically to a wheel-mounted transport vehicle. Background Technology

[0002] Aircraft transportation is a crucial part of the aircraft assembly and manufacturing process. After final assembly, some aircraft landing gear may not yet be fully tested and requires transport with the wheels still attached. The positioning of the transport vehicle and the aircraft relies on the aircraft wheels for stability. Currently, a towing vehicle is typically used to pull the aircraft wheels to the desired position. Existing leverless towing vehicles primarily use a wheel clamping device to hold and secure the wheels, then lift the wheels to approximately 10cm above the ground before towing them. However, the clamping force on the wheels is insufficient, making it easy for the wheels to bounce during towing, potentially causing them to dislodge from the wheel clamping mechanism and resulting in a safety accident. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a wheel-clamping transport vehicle. The lifting mechanism and the wheel-clamping mechanism have simple and novel structures. They mostly use mechanical structures to achieve the lifting and clamping of the mechanism. The lifting height of the lifting mechanism and the distance between the two clamping parts of the wheel-clamping mechanism can be adjusted according to the different sizes of the wheels. It has strong adaptability, low production and maintenance costs, and high safety performance.

[0004] This utility model provides a wheel-mounted transport vehicle to solve the above-mentioned technical problems, comprising:

[0005] Framework structure;

[0006] The walking system is located at the bottom of the frame structure;

[0007] A lifting mechanism, mounted on the frame structure, includes a horizontally movable drive wedge and a vertically movable lifting wedge, wherein the drive wedge and the lifting wedge are in sliding engagement.

[0008] The wheel clamping mechanism, located on the lifting wedge plate, includes a front clamping member and a horizontally movable rear clamping member, which are respectively arranged opposite to the front clamping member.

[0009] Furthermore, the frame structure is provided with a U-shaped clearance opening, the drive wedge plate and the lifting wedge plate are respectively provided on both sides of the U-shaped clearance opening, and the lower ends of the front clamping member and the rear clamping member are located inside the U-shaped clearance opening.

[0010] Furthermore, horizontal guide rails are provided on both sides of the U-shaped clearance opening, and a horizontal slider is provided on the drive wedge plate to slide in cooperation with the horizontal guide rails. A drive component is provided on the frame structure, the output end of the drive component is connected to the push component, and both ends of the push component are connected to the drive wedge plate.

[0011] Furthermore, the upper side of the lifting wedge plate is provided with a fixing plate and an adjusting member, the adjusting member is slidably engaged with the lifting wedge plate, the fixing plate is provided with a first threaded sleeve, the first threaded sleeve is internally threaded with a first lead screw, one end of the first lead screw is rotatably connected to the adjusting member, and the rear clamping member is fixed to the adjusting member.

[0012] Furthermore, the adjusting component includes a vertical plate and a U-shaped plate. One end of the first lead screw is connected to the vertical plate via a bearing. The opening of the U-shaped plate faces the front clamping member and is provided with second sliders on both sides. The lifting wedge plate is provided with a second guide rail that slides with the second sliders. The rear clamping member is located at the bottom of the closed end of the U-shaped plate.

[0013] Furthermore, a second lead screw is rotatably provided on the side of the lifting wedge plate away from the rear clamping member. The second lead screw is fixed to the output end of the drive motor fixed on the lifting wedge plate. A front stop rod is fixed on the second lead screw by a nut. A fixing hole is provided on the other end of the front stop rod. A positioning member that cooperates with the fixing hole is provided on the lifting wedge plate on the other side.

[0014] Furthermore, the positioning component includes a mounting block fixed to the lifting wedge plate, and a switch pin is movably provided on the mounting block via a sliding sleeve. The switch pin is provided with a convex ring and an elastic element, and the elastic element is located between the convex ring and the sliding sleeve.

[0015] Furthermore, the drive wedge plate has a first guide rail on its wedge surface, the lifting wedge plate has a first slider that slides with the first guide rail on its wedge surface, the lifting wedge plate also has a vertical guide rail, the frame structure has a mounting plate, and the mounting plate has a vertical slider that slides with the vertical guide rail.

[0016] Furthermore, the opposing surfaces of the front clamping member and the rear clamping member are arc surfaces that match the circumferential surface of the wheel.

[0017] Furthermore, the walking system includes two AGV walking wheels diagonally arranged at the bottom of the frame structure and shock-absorbing wheels diagonally arranged at the bottom of the frame structure.

[0018] The beneficial effects of this utility model are as follows: the frame structure provides overall support for the walking system, lifting mechanism, and wheel-holding mechanism. The walking system, located at the bottom of the frame structure, is used to move the entire transport vehicle and achieve the traction function of the wheels. The lifting mechanism is located on the frame structure, and the wheel-holding mechanism is located on the lifting wedge plate. The lifting mechanism achieves the lifting or lowering of the wheels. The horizontally moving drive wedge plate and the vertically moving lifting wedge plate slide together, changing the height of the lifting wedge plate during this sliding engagement. When the wedge surfaces of the horizontal wedge plate and the lifting wedge plate move towards each other, the lifting wedge plate rises to lift the wheels; when the wedge surfaces of the horizontal wedge plate and the lifting wedge plate move away from each other, the lifting wedge plate falls to lower the wheels. The wheel-clamping mechanism includes a front clamping member and a horizontally movable rear clamping member. The rear clamping member can move horizontally relative to the front clamping member, allowing adjustment of the gap between the two clamping members. This adapts to clamping wheels of different diameters, ensuring that the contact surfaces of the front and rear clamping members with the wheel always extend to the upper part of the wheel, restricting the upward movement of the wheel and preventing it from disengaging from the front and rear clamping members, thus guaranteeing the clamping effect of the clamping mechanism. In summary, this invention features a simple and novel lifting and wheel-clamping mechanism. It utilizes mechanical structures to achieve lifting and clamping, allowing adjustment of the lifting height of the lifting mechanism and the distance between the two clamping members of the wheel-clamping mechanism according to different wheel sizes. It offers strong adaptability, low production and maintenance costs, and high safety performance.

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the lifting mechanism of this utility model;

[0022] Figure 3 This is a schematic diagram of the wheel clamping mechanism of this utility model;

[0023] Figure 4 This is a schematic diagram of the cross-sectional structure of the present invention;

[0024] Figure 5 This is a schematic diagram of the positioning component of this utility model.

[0025] In the attached diagram: 100 - Frame structure, 110 - U-shaped clearance, 120 - Horizontal guide rail, 130 - Mounting plate, 131 - Vertical slider, 200 - Walking system, 210 - AGV walking wheel, 220 - Shock-absorbing wheel, 300 - Lifting mechanism, 310 - Drive wedge plate, 311 - Horizontal slider, 312 - First guide rail, 320 - Lifting wedge plate, 321 - Second guide rail, 322 - Vertical guide rail, 323 - First slider, 330 - Driving component, 340 - Pushing component, 400 - Wheel clamping mechanism 410-Rear clamping component, 411-Fixing plate, 412-Adjusting component, 4121-Vertical plate, 4122-U-shaped plate, 4123-Second slider, 413-First threaded sleeve, 414-First lead screw, 420-Front clamping component, 421-Second lead screw, 422-Drive motor, 423-Nut, 424-Front stop bar, 4241-Fixing hole, 425-Positioning component, 4251-Mounting block, 4252-Sliding sleeve, 4253-Switch pin, 4254-Protruding ring, 4255-Elastic component. Detailed Implementation

[0026] Referring to the accompanying drawings, the specific embodiments of this utility model will be described in detail.

[0027] Reference Figures 1 to 5 This utility model provides a wheel-holding transport vehicle, including a frame structure 100 that provides overall support for a walking system 200, a lifting mechanism 300, and a wheel-holding mechanism 400. Furthermore, the frame structure 100 is provided with a U-shaped clearance opening 110 for allowing the wheels to pass.

[0028] A walking system 200 is located at the bottom of the frame structure 100 for moving the entire transport vehicle. Further, the walking system 200 includes two AGV walking wheels 210 diagonally arranged at the bottom of the frame structure 100 and shock-absorbing wheels 220 diagonally arranged at the bottom of the frame structure 100. The two AGV walking wheels 210 allow the wheel-mounted transport vehicle to change direction arbitrarily and enables lateral movement. The shock-absorbing wheels 220 absorb most of the impact energy, preventing damage to the wheel-mounted transport vehicle caused by vibrations from uneven road surfaces. Specifically, the AGV walking wheels 210 can use existing technology, as long as they enable the wheel-mounted transport vehicle to move in any direction. In this embodiment, the AGV walking wheel 210 includes a wheel body connected to the output end of a walking motor. The wheel body is rotatably mounted on a support base. A fixed gear fixed to the frame structure 100 is rotatably mounted on the support base. A reversing gear meshing with the fixed gear is also provided on the support base. The reversing gear is fixed to the output end of a reversing motor fixed to the support base. At this time, the walking motor drives the wheels to rotate, realizing the walking function of the transport vehicle. The reversing motor drives the reversing gear to rotate. When the reversing gear rotates, it revolves around the circumference of the fixed gear, which in turn drives the support base to rotate around the circumference of the fixed gear, causing the wheels on it to rotate and changing the walking direction.

[0029] A lifting mechanism 300, mounted on the frame structure 100, includes a horizontally movable drive wedge 310 and a vertically movable lifting wedge 320. The drive wedge 310 and the lifting wedge 320 are in sliding engagement. The lifting mechanism 300 raises or lowers the wheel. The horizontally movable drive wedge 310 and the vertically movable lifting wedge 320 are in sliding engagement, changing the height of the lifting wedge 320 during this engagement. When the wedge surfaces of the horizontal wedge and the lifting wedge 320 move towards each other, the lifting wedge 320 rises to lift the wheel; when they move away from each other, the lifting wedge 320 falls to lower the wheel.

[0030] Furthermore, two sets of drive wedge plates 310 and lifting wedge plates 320 are respectively provided on both sides of the U-shaped clearance opening 110. The arrangement of the two sets of drive wedge plates 310 and lifting wedge plates 320 ensures the stability of the lifting mechanism 300 during movement, further ensuring the stability of the wheel-holding mechanism 400. Furthermore, horizontal guide rails 120 are provided on both sides of the U-shaped clearance opening 110. A horizontal slider 311 that slides with the horizontal guide rails 120 is provided on the drive wedge plate 310. A drive member 330 is provided on the frame structure 100. The output end of the drive member 330 is connected to the push member 340, and both ends of the push member 340 are connected to the drive wedge plate 310. The drive member 330 can be a hydraulic cylinder or an electric telescopic cylinder, as long as it can achieve horizontal movement of the push member 340. In this embodiment, a hydraulic cylinder is used as the drive member 330. At this time, the horizontal movement of the drive wedge plate 310 is guided by the cooperation of the horizontal guide rail 120 and the horizontal slider 311 to ensure the stability of the movement of the drive wedge plate 310. The extension and retraction of the output end of the hydraulic cylinder drives the pusher 340 to move, pushing the two drive wedge plates 310 to move on the horizontal guide rail 120, so that it pushes the lifting wedge plate 320 to rise and fall.

[0031] Furthermore, the drive wedge plate 310 has a first guide rail 312 on its wedge surface, and the lifting wedge plate 320 has a first slider 323 that slides with the first guide rail 312 on its wedge surface. The lifting wedge plate 320 also has a vertical guide rail 322. The frame structure 100 has a mounting plate 130, and the mounting plate 130 has a vertical slider 131 that slides with the vertical guide rail 322. Through the cooperation of the first guide rail 312 and the first slider 323, the relative movement between the drive wedge plate 310 and the lifting wedge plate 320 can be guided, ensuring the structural stability between them. Furthermore, through the cooperation of the vertical slider 131 on the mounting plate 130 and the vertical guide rail 322 on the lifting wedge plate 320, the lifting wedge plate 320's lifting movement is guided, so that the lifting wedge plate 320 only moves vertically. This ensures that when the wheel clamping mechanism 400 clamps the wheel, the wheel will not deflect between itself and the support when the wheel is lifted.

[0032] A wheel clamping mechanism 400, mounted on the lifting wedge plate 320, includes a front clamping member 420 and a horizontally movable rear clamping member 410, which are correspondingly arranged. Further, the lower ends of the front clamping member 420 and the rear clamping member 410 are located within the U-shaped clearance opening 110. When the wheel enters the U-shaped clearance opening 110, the front clamping member 420 and the rear clamping member 410 clamp the wheel. Further, the opposing surfaces of the front clamping member 420 and the rear clamping member 410 are arc surfaces that match the wheel circumference to increase the contact area with the wheel and ensure uniform force distribution on the wheel.

[0033] To ensure the wheels are centered when entering the U-shaped clearance opening 110, radar can be installed on the wheel clamping mechanism 400 or the frame structure 100 for centering and aligning the wheels. In this embodiment, radar can be installed on the frame structure to scan the wheels and acquire data. The control module then analyzes and calculates the acquired data to align the wheels with the U-shaped clearance opening, thereby enabling the wheels to accurately enter the U-shaped clearance opening and remain in a centered position.

[0034] At this time, the rear clamping member 410 can move horizontally relative to the front clamping member 420 to adjust the gap between the front clamping member 420 and the rear clamping member 410, thereby adapting to the clamping of wheels with different diameters and different tire pressures. This ensures that the contact surface between the front clamping member 420 and the wheel can always extend to the upper part of the wheel, restricting the upward movement of the wheel and preventing the wheel from disengaging from between the front clamping member 420 and the rear clamping member 410, thus ensuring the clamping effect of the clamping mechanism on the wheel.

[0035] Furthermore, the upper side of the lifting wedge plate 320 is provided with a fixing plate 411 and an adjusting member 412. The adjusting member 412 is slidably engaged with the lifting wedge plate 320. The fixing plate 411 is provided with a first threaded sleeve 413, and a first lead screw 414 is threadedly engaged within the first threaded sleeve 413. One end of the first lead screw 414 is rotatably connected to the adjusting member 412. The rear clamping member 410 is fixed to the adjusting member 412. At this time, the sliding engagement between the adjusting member 412 and the lifting wedge plate 320 guides the adjusting member 412 while also preventing rotation. By rotating the first lead screw 414, the first lead screw 414 moves within the first threaded sleeve 413, causing the adjusting member 412 to move closer to or away from the front clamping member 420. This, in turn, causes the rear clamping member 410 on the adjusting member 412 to move closer to or away from the front clamping member 420, thereby adjusting the distance between the rear clamping member 410 and the front clamping member 420 to accommodate clamping wheels of different diameters.

[0036] Furthermore, the adjusting member 412 includes a vertical plate 4121 and a U-shaped plate 4122. One end of the first lead screw 414 is connected to the vertical plate 4121 via a bearing. The opening of the U-shaped plate 4122 faces the front clamping member 420 and is provided with second sliders 4123 on both sides. The lifting wedge plate 320 is provided with a second guide rail 321 that slides with the second sliders 4123. The rear clamping member 410 is located at the bottom of the closed end of the U-shaped plate 4122. At this time, the U-shaped plate 4122 increases the contact surface between the adjusting member 412 and the lifting wedge plates 320 on both sides. The cooperation between the second sliders 4123 and the second guide rails 321 ensures the stable sliding of the adjusting member 412 and also ensures the support stability of the rear clamping member 410, thereby ensuring the stable support of the front clamping member 420 and the rear clamping member 410 for the machine wheel after the machine wheel is clamped and lifted.

[0037] Furthermore, a second lead screw 421 is rotatably mounted on the side of the lifting wedge plate 320 away from the rear clamping member 410. The second lead screw 421 is fixed to the output end of the drive motor 422 fixed on the lifting wedge plate 320. A front stop 424 is fixed to the second lead screw 421 by a nut 423. A fixing hole 4241 is provided on the other end of the front stop 424. A positioning member 425 that mates with the fixing hole 4241 is provided on the lifting wedge plate 320 on the other side. By installing the front stop 424 by the nut 425, the installation height of the front stop 424 can be adjusted during equipment assembly. During the assembly process, the height of the front stop 424 is always located in the upper half of the wheel, so that when the front clamping member clamps the wheel, the working surface between the clamping member and the wheel is located in the upper half of the wheel.

[0038] At this time, when the drive motor 422 drives the lead screw to rotate, it can drive the front stop 424 on it to open or close the U-shaped clearance opening 110, realizing the automatic clamping or loosening of the machine wheel. Through the cooperation of the fixing hole 4241 on the front stop 424 and the positioning member 425, when the positioning member 425 disengages from the fixing hole 4241, one side of the front stop 424 can be disengaged from the lifting wedge plate 320, thereby driving the motor 422 to drive the front stop 424 to rotate, so that the U-shaped clearance opening 110 opens, making it easier for the machine wheel to enter the U-shaped clearance opening 110; when the positioning member 425 is inserted into the fixing hole 4241, both ends of the front stop 424 can be fixed, so that the front clamping member 420 on the front stop 424 is clamped on the machine wheel.

[0039] Furthermore, the positioning component 425 includes a mounting block 4251 fixed to the lifting wedge plate 320. A switch pin 4253 is movably mounted on the mounting block 4251 via a sliding sleeve 4252. The switch pin 4253 is provided with a protruding ring 4254 and an elastic element 4255, with the elastic element 4255 located between the protruding ring 4254 and the sliding sleeve 4252. The protruding ring 4254 can both support the elastic element 4255 and limit the movement of the switch pin 4253 within the sliding sleeve 4252, preventing the switch pin 4253 from disengaging from the sliding sleeve 4252. In this manner, when the current stop lever 424 rises, the protruding ring 4254 pushes the switch pin 4253 upward within the sliding sleeve 4252, at which time the elastic element 4255 is compressed. In use, when the switch pin 4253 is pulled to move it away from the fixing hole 4241, the elastic element 4255 is compressed, and the switch pin 4253 can disengage from the fixing hole 4241. After the switch pin 4253 is released, under the reset action of the elastic element 4255, the switch pin 4253 is driven to insert into the fixing hole 4241. Furthermore, due to the setting of the elastic element 4255, the switch pin 4253 can elastically adapt to different heights of the front stop 424 to ensure that when the front stop 424 closes the U-shaped clearance opening 110, the switch pin 4253 can be inserted into the fixing hole 4241 to restrict the front stop 424.

[0040] In use, pull the switch pin 4253 to disengage it from the fixing hole 4241 on the front stop 424. The drive motor drives the front stop 424 to rotate, opening the U-shaped clearance opening 110. After the wheel enters the U-shaped clearance opening 110, the front stop 424 is closed, causing the front clamping member 420 and the rear clamping member 410 to clamp the wheel on both sides of its circumference, thus securing the wheel. Then, the drive member 330 pushes the drive wedge plate 310 to move towards the lifting wedge plate 320, pushing the lifting wedge plate 320 upward. This, in turn, causes the front clamping member 420 and the rear clamping member 410 on the lifting wedge plate 320 to rise synchronously, achieving the lifting of the wheel. Finally, the movement of the wheel is controlled by the travel system 200 to achieve the traction and transportation of the aircraft.

[0041] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wheel-mounted transport vehicle, characterized in that, include: Frame structure (100); A walking system (200) is located at the bottom of the frame structure (100); The lifting mechanism (300) is provided on the frame structure (100) and includes a horizontally movable drive wedge plate (310) and a vertically movable lifting wedge plate (320). The drive wedge plate (310) and the lifting wedge plate (320) slide in cooperation with each other. The wheel clamping mechanism (400) is provided on the lifting wedge plate (320) and includes a front clamping member (420) and a horizontally movable rear clamping member (410), which are respectively provided with the rear clamping member (410) and the front clamping member (420).

2. The wheel-mounted transport vehicle according to claim 1, characterized in that, The frame structure (100) is provided with a U-shaped clearance opening (110), the drive wedge plate (310) and the lifting wedge plate (320) are respectively provided on both sides of the U-shaped clearance opening (110), and the lower ends of the front clamping member (420) and the rear clamping member (410) are located inside the U-shaped clearance opening (110).

3. The wheel-mounted transport vehicle according to claim 2, characterized in that, The U-shaped clearance opening (110) is provided with horizontal guide rails (120) on both sides. The drive wedge plate (310) is provided with a horizontal slider (311) that slides with the horizontal guide rails (120). The frame structure (100) is provided with a drive member (330). The output end of the drive member (330) is connected to the push member (340). The two ends of the push member (340) are connected to the drive wedge plate (310).

4. The wheel-mounted transport vehicle according to claim 2, characterized in that, The upper side of the lifting wedge plate (320) is provided with a fixing plate (411) and an adjusting member (412). The adjusting member (412) is slidably engaged with the lifting wedge plate (320). The fixing plate (411) is provided with a first threaded sleeve (413). The first threaded sleeve (413) is threaded with a first lead screw (414). One end of the first lead screw (414) is rotatably connected to the adjusting member (412). The rear clamping member (410) is fixed to the adjusting member (412).

5. The wheel-mounted transport vehicle according to claim 4, characterized in that, The adjusting member (412) includes a vertical plate (4121) and a U-shaped plate (4122). One end of the first lead screw (414) is connected to the vertical plate (4121) through a bearing. The opening of the U-shaped plate (4122) faces the front clamping member (420) and is provided with second sliders (4123) on both sides. The lifting wedge plate (320) is provided with a second guide rail (321) that slides with the second slider (4123). The rear clamping member (410) is located at the bottom of the closed end of the U-shaped plate (4122).

6. The wheel-mounted transport vehicle according to claim 2, characterized in that, On one side of the lifting wedge plate (320), a second lead screw (421) is rotatably provided on the side away from the rear clamping member (410). The second lead screw (421) is fixed to the output end of the drive motor (422) fixed on the lifting wedge plate (320). A front stop (424) is fixed on the second lead screw (421) by a nut (423). A fixing hole (4241) is provided on the other end of the front stop (424). On the other side of the lifting wedge plate (320), a positioning member (425) is provided that cooperates with the fixing hole (4241).

7. The wheel-mounted transport vehicle according to claim 6, characterized in that, The positioning component (425) includes a mounting block (4251) fixed to the lifting wedge plate (320). A switch pin (4253) is movably provided on the mounting block (4251) via a sliding sleeve (4252). The switch pin (4253) is provided with a protruding ring (4254) and an elastic element (4255). The elastic element (4255) is located between the protruding ring (4254) and the sliding sleeve (4252).

8. The wheel-mounted transport vehicle according to claim 1, characterized in that, The drive wedge plate (310) has a first guide rail (312) on its wedge surface, and the lifting wedge plate (320) has a first slider (323) that slides with the first guide rail (312) on its wedge surface. The lifting wedge plate (320) also has a vertical guide rail (322). The frame structure (100) has a mounting plate (130), and the mounting plate (130) has a vertical slider (131) that slides with the vertical guide rail (322).

9. The wheel-mounted transport vehicle according to claim 1, characterized in that, The opposing surfaces of the front clamping member (420) and the rear clamping member (410) are arc surfaces that match the circumferential surface of the wheel.

10. The wheel-mounted transport vehicle according to claim 1, characterized in that, The walking system (200) includes two AGV walking wheels (210) diagonally arranged at the bottom of the frame structure (100) and shock-absorbing wheels (220) diagonally arranged at the bottom of the frame structure (100).

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