Heavy-load AGV spring suspension assembly

Abstract

The utility model provides a heavy load AGV spring suspension assembly which comprises a rotary supporting assembly, a wheel set supporting assembly is arranged at the bottom of the rotary supporting assembly in a sliding mode in the vertical direction, differential wheels are arranged at the two ends of the wheel set supporting assembly in a rotating mode, and a driving assembly for driving the differential wheels to rotate is arranged on the wheel set supporting assembly. The bottom of the rotary supporting assembly and the top of the wheel set supporting assembly are elastically supported. According to the heavy-load AGV spring suspension assembly, the rotary supporting assembly and the wheel set supporting assembly in the heavy-load AGV spring suspension assembly are elastically supported, good contact between a differential wheel and the ground can be kept through deformation of the elastic support, the problem that a wheel set is suspended due to the uneven ground is solved, it is guaranteed that the wheel set is evenly stressed, and traction force on the whole vehicle is exerted; and meanwhile, the elastic support also plays a buffering role, so that the impact force of a concave-convex road surface on the vehicle is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of AGV, and particularly relates to a heavy-duty AGV spring suspension assembly. Background Art

[0002] A heavy-duty AGV is an AGV with the ability to carry large-weight goods. With the diversification and complexity of industrial production, more and more special requirements emerge, demanding that heavy-duty AGVs can adapt to more complex and harsh working environments to meet the specific needs of different enterprises.

[0003] During the working process of a heavy-duty AGV or flatbed truck, the problem of the wheel set being suspended due to uneven ground affects the traction of the wheel set on the vehicle, and causes uneven stress on the wheel set. The wheel set in contact with the ground will bear an increased load, which may cause damage to the wheel set.

[0004] Therefore, it is necessary to design a heavy-duty AGV spring suspension assembly that can solve the problem of the wheel set being suspended due to uneven ground, realize the contact between the wheel set on the suspension assembly and the ground, and ensure the uniform stress of the wheel set and the traction force of the whole vehicle to solve the current technical problems. Summary of the Invention

[0005] Aiming at the deficiencies in the prior art, the utility model provides a heavy-duty AGV spring suspension assembly that can solve the problem of the wheel set being suspended due to uneven ground, realize the contact between the wheel set on the suspension assembly and the ground, and ensure the uniform stress of the wheel set and the traction force of the whole vehicle.

[0006] The technical solution of the utility model is: a heavy-duty AGV spring suspension assembly, including a rotary support assembly. A wheel set support assembly is slidably arranged along the vertical direction at the bottom of the rotary support assembly. Differential wheels are rotatably arranged at both ends of the wheel set support assembly. A drive assembly for driving the differential wheels to rotate is arranged on the wheel set support assembly. An elastic support is provided between the bottom of the rotary support assembly and the top of the wheel set support assembly.

[0007] The wheel set support assembly has a support shaft. A support plate is arranged at the top of the support shaft. The differential wheels are rotatably arranged at both ends of the support shaft. The rotary support assembly has a slewing support gear. A support frame is rotatably arranged at the bottom of the slewing support gear. Two guiding assemblies are symmetrically arranged between the support frame and the support plate. The support frame and the support plate are slidably connected through the guiding assemblies.

[0008] The guiding assembly has a guiding shaft and a bushing slidably sleeved outside the guiding shaft. The bushing is fixedly assembled at the top of the support plate. The guiding shaft is fixedly assembled at the bottom of the support frame.

[0009] Springs are evenly arranged between the support plate and the support frame.

[0010] The springs are rectangular springs.

[0011] The bottom of the support plate is connected to the middle part of the support shaft through a connecting pin shaft.

[0012] An installation plate is fixedly arranged on the support shaft, the driving component is fixedly arranged on the installation plate, and the driving component is in transmission connection with the inner side of the differential wheel.

[0013] The differential wheel has a wheel body, and an internal gear ring is arranged on the inner side of one end of the wheel body close to the driving component; the driving component has a speed reducer fixedly assembled on the installation plate, a servo motor is arranged at one end of the speed reducer, and a gear meshing with the internal gear ring is arranged at the other end of the speed reducer.

[0014] The wheel body is a polyurethane wheel, and the inside of the wheel body is rotationally connected to the support shaft through a bearing.

[0015] An encoder is arranged on the support frame, and the encoder is in transmission connection with the slewing bearing gear through an encoder gear.

[0016] Advantages of the present utility model: In the present utility model, there is elastic support between the rotating support component and the wheel set support component in the heavy-duty AGV spring suspension assembly. Through the deformation of the elastic support, it can ensure good contact between the differential wheel and the ground, solve the problem of the wheel set being suspended due to uneven ground, ensure uniform force on the wheel set and the traction force of the whole vehicle. At the same time, the elastic support also plays a buffering role, reducing the impact force of the bumpy road surface on the vehicle. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the heavy-duty AGV spring suspension assembly in the present utility model.

[0018] Figure 2 It is a schematic structural diagram of the rotating support component in the present utility model.

[0019] Figure 3 It is a schematic structural diagram of the guiding component in the present utility model.

[0020] Figure 4 It is a schematic structural diagram of the driving component in the present utility model.

[0021] Figure 5 It is a schematic structural diagram of the differential wheel in the present utility model.

[0022] Figure 6 It is a schematic structural diagram of the wheel set support component in the present utility model. Detailed Embodiments

[0023] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is not intended as any limitation on the present invention and its application or use. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete, and to fully convey the scope of the present invention to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangements of components and steps, the components of materials, numerical expressions and values set forth in these embodiments should be construed as merely exemplary and not as limitations.

[0024] The "first", "second" and similar terms used in the present invention do not denote any order, quantity or importance, but are only used to distinguish different parts. Words such as "comprising" or "including" mean that the elements before the word cover the elements listed after the word, and do not exclude the possibility of also covering other elements. "Upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0025] As Figure 1 shown, the heavy-duty AGV spring suspension assembly includes a rotary support assembly 1. A wheel set support assembly 7 is slidably arranged at the bottom of the rotary support assembly 1 in the vertical direction. Differential wheels 6 are rotatably arranged at both ends of the wheel set support assembly 7. A drive assembly 5 for driving the differential wheels 6 to rotate is arranged on the wheel set support assembly 7. An elastic support is provided between the bottom of the rotary support assembly 1 and the top of the wheel set support assembly 7. In this embodiment, an elastic support is provided between the rotary support assembly 1 and the wheel set support assembly 7 in the heavy-duty AGV spring suspension assembly. Through the deformation of the elastic support, it is possible to ensure that the differential wheels 6 maintain good contact with the ground, solve the problem of the wheel set being suspended due to uneven ground, ensure uniform force on the wheel set and the traction force of the whole vehicle. At the same time, the elastic support also plays a buffering role, reducing the impact force of the uneven road surface on the vehicle.

[0026] In some embodiments, as Figure 2 and 6As shown, the wheel set support assembly 7 has a support shaft 72. A support plate 71 is provided at the top of the support shaft 72. Differential wheels 6 are rotatably provided at both ends of the support shaft 72; the rotary support assembly 1 has a slewing support gear 11. A support frame 12 is rotatably provided at the bottom of the slewing support gear 11. When the slewing support gear 11 is installed, it is fixed to the vehicle chassis by bolts; two guiding assemblies 3 are symmetrically provided between the support frame 12 and the support plate 71. The support frame 12 and the support plate 71 are slidably connected through the guiding assemblies 3. The guiding assemblies 3 mainly play a guiding role to prevent the connection between the rotary support assembly 1 and the wheel set support assembly 7 from swinging.

[0027] In some embodiments, as Figure 3 shown, the guiding assembly 3 has a guiding shaft 31 and a bushing 32 slidably sleeved outside the guiding shaft 31. The bushing 32 is fixedly assembled at the top of the support plate 71. The guiding shaft 31 is fixedly assembled at the bottom of the support frame 12. The rotary support assembly 1 and the wheel set support assembly 7 are slidably connected through the cooperation of the bushing 32 and the guiding shaft 31; specifically, a stop block for limiting and blocking the bushing 32 is provided at the bottom end of the guiding shaft 31, which can prevent the bushing 32 from slipping off the guiding shaft 31.

[0028] In some embodiments, springs 4 are evenly provided between the support plate 71 and the support frame 12; specifically, four grooves are evenly formed at the top of the support plate 71. Correspondingly, four grooves are also formed at the bottom of the support frame 12 corresponding to the top of the support plate 71. The springs 4 are fixedly installed between the two vertically corresponding grooves. The springs 4 are limited by the grooves to ensure the stability of the springs 4; more specifically, the springs 4 are rectangular springs.

[0029] In some embodiments, the bottom of the support plate 71 is connected to the middle of the support shaft 72 through a connecting pin shaft 74. Through the connecting pin shaft 74, the support shaft 72 can swing within a range of moving angles relative to the support plate 71, so that the differential wheels 6 at both ends of the support shaft 72 can adapt to the ground conditions and keep in contact with the ground in a matching manner.

[0030] In some embodiments, a mounting plate 73 is fixedly provided on the support shaft 72. The driving assembly 5 is fixedly provided on the mounting plate 73. The driving assembly 5 is in transmission connection with the inner side of the differential wheel 6. The driving assembly 5 drives the differential wheel 6 to rotate; the two differential wheels 6 at both ends of the support shaft 72 are respectively driven by a set of driving assemblies 5. By controlling the differential speed of the two differential wheels 6, the moving direction of the wheel set can be controlled.

[0031] In some embodiments, as Figure 4 and 5As shown, the differential wheel 6 has a wheel body 61, and an inner ring gear 62 is provided on the inner side of one end of the wheel body 61 close to the drive assembly 5; the drive assembly 5 has a reducer 52 fixedly assembled on the mounting plate 73, and a servo motor 51 is provided at one end of the reducer 52, and a gear 53 meshing with the inner ring gear 62 is provided at the other end of the reducer 52. The servo motor 51 drives the reducer 52 to rotate, and the output shaft of the reducer 52 drives the gear 53 to rotate. The gear 53 meshes with the inner ring gear 62, driving the inner ring gear 62 to drive the wheel body 61 to rotate; specifically, the wheel body 61 is a polyurethane wheel, and the inside of the wheel body 61 is rotatably connected to the support shaft 72 through a bearing 63.

[0032] In some embodiments, an encoder is provided on the support frame 12, and the encoder is connected to the rotating support gear 11 through the encoder gear 2; the encoder gear 2 is mainly engaged with the rotating support gear 11 of the rotating support assembly 1, and the encoder calculates the number of rotations of the encoder gear 2 and converts the rotation angle of the wheel set support assembly 7 to identify the angle of the differential wheel 6.

[0033] Thus far, various embodiments of the present invention have been described in detail. To avoid obscuring the concept of the present invention, some details well known in the art have not been described. Based on the above description, those skilled in the art will fully understand how to implement the technical solutions disclosed herein.

[0034] The above-described embodiments represent only some of the embodiments of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present utility model, and these modifications and improvements fall within the scope of protection of the present utility model. Therefore, the scope of protection of the present utility model patent shall be based on the appended claims.

Claims

1. An overloaded AGV spring suspension assembly, characterized in that: It includes a rotating support assembly, at the bottom of which a wheel set support assembly is slidably arranged in the vertical direction. At both ends of the wheel set support assembly, differential wheels are rotatably arranged. A driving assembly for driving the differential wheels to rotate is arranged on the wheel set support assembly. An elastic support is provided between the bottom of the rotating support assembly and the top of the wheel set support assembly.

2. The heavy-duty AGV spring suspension assembly according to claim 1, wherein: The wheel set support assembly has a support shaft, at the top of which a support plate is arranged. At both ends of the support shaft, the differential wheels are rotatably arranged; the rotating support assembly has a slewing support gear, at the bottom of which a support frame is rotatably arranged; two guiding assemblies are symmetrically arranged between the support frame and the support plate, and the support frame and the support plate are slidably connected through the guiding assemblies.

3. The heavy-duty AGV spring suspension assembly according to claim 2, wherein: The guiding assembly has a guiding shaft and a bushing slidably sleeved outside the guiding shaft. The bushing is fixedly assembled on the top of the support plate, and the guiding shaft is fixedly assembled on the bottom of the support frame.

4. The heavy-duty AGV spring suspension assembly according to claim 2, wherein: Springs are evenly arranged between the support plate and the support frame.

5. The heavy-duty AGV spring suspension assembly according to claim 4, characterized in that: The springs are rectangular springs.

6. The heavy-duty AGV spring suspension assembly according to claim 2, wherein: The bottom of the support plate is connected to the middle of the support shaft through a connecting pin shaft.

7. The heavy-duty AGV spring suspension assembly according to claim 2, wherein: An installation plate is fixedly arranged on the support shaft, and the driving assembly is fixedly arranged on the installation plate. The driving assembly is in transmission connection with the inner side of the differential wheel.

8. The heavy-duty AGV spring suspension assembly according to claim 7, wherein: The differential wheel has a wheel body, and an internal gear ring is arranged on the inner side of one end of the wheel body close to the driving assembly; the driving assembly has a reducer fixedly assembled on the installation plate, a servo motor is arranged at one end of the reducer, and a gear meshing with the internal gear ring is arranged at the other end of the reducer.

9. The heavy-duty AGV spring suspension assembly according to claim 8, wherein: The wheel body is a polyurethane wheel, and the inside of the wheel body is rotatably connected to the support shaft through a bearing.

10. The heavy-duty AGV spring suspension assembly according to claim 2, characterized in that: An encoder is arranged on the support frame, and the encoder is in transmission connection with the slewing support gear through an encoder gear.

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