CN220465612U - Rear axle floating AGV frame device - Google Patents
Rear axle floating AGV frame device Download PDFInfo
- Publication number
- CN220465612U CN220465612U CN202321896467.XU CN202321896467U CN220465612U CN 220465612 U CN220465612 U CN 220465612U CN 202321896467 U CN202321896467 U CN 202321896467U CN 220465612 U CN220465612 U CN 220465612U
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- Prior art keywords
- rear axle
- floating structure
- axle floating
- frame
- agv
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- 230000035939 shock Effects 0.000 claims abstract description 22
- 239000006096 absorbing agent Substances 0.000 claims abstract description 20
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 16
- 229910052802 copper Inorganic materials 0.000 claims description 16
- 239000010949 copper Substances 0.000 claims description 16
- 239000000853 adhesive Substances 0.000 abstract description 3
- 230000001070 adhesive effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000725 suspension Substances 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 4
- 230000007704 transition Effects 0.000 description 3
- 230000009102 absorption Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Vehicle Body Suspensions (AREA)
Abstract
The utility model discloses a rear axle floating AGV frame device, which comprises a frame and a rear axle floating structure, wherein the rear axle floating structure is arranged at the rear end of the frame, the rear axle floating structure is integrally high in the middle and low in two ends, the rear axle floating structure is arranged in parallel with a frame cross beam, the top of the rear axle floating structure is connected with the frame through a rotating shaft, rubber shock absorbers are arranged at the upper parts of two ends of the bottom of the rear axle floating structure, and when the rear axle floating structure is in a horizontal position, gaps exist between the top ends of the rubber shock absorbers at two ends and the frame; the lower parts of the two ends of the bottom of the rear axle floating structure are used for connecting the rear axle. The device solves the problem of poor adaptability of AGV traveling on complicated road surface through the up-and-down swing at rear axle floating structure both ends for the tire of chassis both sides lands jointly, avoids the unsettled or adhesive force of drive wheel because of the uneven ground brings phenomenon that the action wheel skidded inadequately.
Description
Technical Field
The utility model relates to a frame, in particular to a rear axle floating AGV frame device.
Background
An automatic guided vehicle (Automated Guided Vehicle, AGV) is an intelligent production device which is controlled or driven by an unmanned person and can complete automatic conveying, assembling and other works, and is an important branch in a mobile robot. Compared with the traditional mechanical manufacturing conveying device, the AGV has flexibility and relatively excellent safety and reliability, so that the requirements on common labor force in production can be greatly reduced, and the AGV is widely applied to the fields of warehouse industry, production workshops, dangerous places and the like. AGVs are widely applied to fields such as logistics, manufacturing, security inspection, and the like, and environment level ranges used by the AGVs are wider and wider. As used in the manufacturing industry, AGVs need to travel around more than two workshops, and scene changes inside and outside the room tend to increase the environmental adaptability requirements of the AGVs. The road surface adaptation performance of the AGV is also increasingly important in the face of the expansion of the application field.
The Chinese patent of the utility model with the publication number of CN219115559U discloses a wheel suspension comprising a bearing front end plate, a damping spring, bearing beam side reinforcing blocks, a spacing zone and wheel suspensions, wherein the two ends of the rear side of the bearing front end plate are welded with arc transition zones, one side of each arc transition zone is welded with a bearing beam end reinforcing block, the other side of each arc transition zone is welded with a bearing side reinforcing block, a side frame connecting plate is welded between the bearing side beam reinforcing blocks, mounting wheels are mounted at the bottom of the bearing front end plate through screws, and the wheel suspensions are welded on the other sides of the mounting wheels through suspension welding surfaces.
The technical problems still exist are: if the vehicle runs on a poor road surface or under a complex working condition, the jumping travel of the suspension of the vehicle is small, the road trafficability and stability of the vehicle are poor, and a single tire can possibly skid or even hang in the air when passing through an uneven road surface.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a rear axle floating type AGV frame device, which solves the problem of poor adaptability of the AGV running on a complex road surface by means of up-and-down swinging of two ends of a rear axle floating structure, so that tires on two sides of a chassis are commonly landed, and the phenomenon that driving wheels are suspended or adhesion force is insufficient due to uneven ground is avoided.
In order to solve the technical problems, the utility model adopts the following technical means:
the utility model provides a rear axle floating AGV frame device, includes frame and rear axle floating structure, rear axle floating structure set up in the rear end of frame, rear axle floating structure is middle high, the several font that both ends are low, rear axle floating structure and frame crossbeam parallel arrangement, rear axle floating structure's top is connected with the frame through the rotation axis, rear axle floating structure's bottom both ends upper portion all is provided with rubber shock absorber, rear axle floating structure is in the horizontal position, the top of rubber shock absorber at both ends and frame existence clearance; the lower parts of the two ends of the bottom of the rear axle floating structure are used for connecting the rear axle.
The rear axle floating structure is rigidly connected with the rear axle, and when the device runs on uneven road surfaces, the two ends of the rear axle floating structure can swing up and down along with the fluctuation of the road surfaces. When the rear axle passes through the raised pavement, one end of the rear axle floating structure which passes through the raised pavement swings upwards with the movement track of the tire by taking the rotating shaft as a fulcrum, and the other end of the rear axle floating structure swings downwards; when the vehicle is on the concave pavement, one end of the rear axle floating structure on the concave pavement swings downwards along with the movement track of the tires by taking the rotating shaft as a fulcrum, the other end of the rear axle floating structure swings upwards, and the tires on two sides of the vehicle frame can land simultaneously, so that the possibility that the tires on one side skid on the poor pavement is reduced, the tires on the left and right sides of the rear axle are ensured to have enough adhesive force with the ground, namely driving force and braking force, and the stability of the vehicle is improved.
When the road surface fluctuation is large and the rear axle floating structure is subjected to large impact, the rubber shock absorber can contact with the frame along with the upward swing of the rotating beam plate to play a role in shock absorption, buffering and limiting, so that the whole frame is ensured not to topple over due to overlarge side-tipping angle and the stability and smoothness of the whole vehicle are influenced.
A further preferred technical scheme is as follows:
the rear axle floating structure comprises two rotary beam plates which are arranged at intervals from front to back, two connecting plates are arranged between the two rotary beam plates, and the two connecting plates are respectively arranged at two ends of the rotary beam plates. The connecting plate is arranged to increase the connecting strength of the rotary beam plates at two sides, and meanwhile, the connection support of the rear axle at the lower side is improved.
The upper ends of the two connecting plates are respectively provided with a mounting seat, the mounting seats are connected with rubber shock absorbers, and the rubber shock absorbers are arranged between the two mounting beams. The arrangement skillfully utilizes the space, and further enhances the buffer effect of the rubber shock absorber on impact and the limit effect on swing of the rear axle floating structure;
the upper ends of the centers of the two rotary beam plates are respectively provided with a mounting hole, the two copper sleeves are arranged between the two rotary beam plates and are matched with the mounting holes in a coaxial way, and the outer side surfaces of the two copper sleeves with the flanges are overlapped with the inner side surfaces of the corresponding rotary beam plates; a shaft sleeve coaxial with the two copper sleeves is arranged between the two copper sleeves, and two ends of the shaft sleeve are respectively overlapped with the inner side surfaces of the two copper sleeves with flanges; and a rotating shaft is also arranged between the two rotating beam plates, is matched with the mounting hole coaxially and penetrates through the two rotating beam plates to form a hinge structure. The rear axle floating structure connected by the rotating shaft can freely rotate when the rotating shaft is stressed.
The two rubber shock absorbers are fixedly connected with the mounting seat through threaded fit. Above-mentioned setting is convenient for the connection and the dismantlement of rubber shock absorber ware and mount pad.
One end of the rotating shaft is a flange, the other end of the rotating shaft is a thread, and after the rotating shaft penetrates through the rotating beam plate, the thread end is locked and positioned through matching with the hexagonal slotted nut. The arrangement is convenient for connecting and fixing the rotating shaft.
The hexagonal slotted nut is provided with an open pin hole in the direction perpendicular to the screw thread rotating shaft, and is loose-proof through being matched with the open pin. Through above-mentioned setting, be convenient for utilize the cotter hole, cotter pin carries out spacingly, prevents not hard up.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application.
FIG. 1 is a perspective view of the present utility model;
FIG. 2 is a perspective view of the rear axle floating structure of the present utility model;
FIG. 3 is a cross-sectional view of a sleeve, rotating shaft of the present utility model;
FIG. 4 is a rear view of the present utility model;
FIG. 5 is a cross-sectional view taken along A-A in FIG. 4;
fig. 6 is an enlarged view of a portion C in fig. 5.
In the figure, 1, a frame; 2. a rear axle floating structure; 101. a floating mounting beam; 201. rotating the beam plate; 202. a connecting plate; 203. a mounting base; 204. a rubber damper; 205. a copper sleeve; 206. a shaft sleeve; 207. a rotation shaft; 208. a hexagonal slotted nut; 209. a split pin hole; 210. and (5) a cotter pin.
Detailed Description
The utility model will be further illustrated with reference to the following examples.
Referring to FIGS. 1-6, a rear axle floating AGV frame assembly is comprised of a frame 1 and a rear axle floating structure 2.
The rear axle floating structure 2 is arranged at the rear end of the frame 1 and is connected with the frame 1 through a rotating shaft 207. The whole rear axle floating structure 2 is in a shape like a Chinese character 'ji' with high middle and low two ends, the rear axle floating structure 2 is arranged in parallel with a frame cross beam, the top of the rear axle floating structure 2 is connected with the frame 1 through a rotating shaft 207, rubber shock absorbers 204 are arranged on the upper parts of the two ends of the bottom of the rear axle floating structure 2, and when the rear axle floating structure 2 is in a horizontal position, gaps exist between the top ends of the rubber shock absorbers 204 at the two ends and the frame 1; the lower parts of both ends of the bottom of the rear axle floating structure 2 are used for connecting the rear axle.
The rear axle floating structure 2 comprises two rotary beam plates 201 which are arranged front and back, and two connecting plates 202 are arranged between the two rotary beam plates 201 and are arranged at two ends of the rotary beam plates 201.
The upper ends of the two connecting plates 202 are respectively provided with a mounting seat 203, the mounting seats 203 are connected with rubber shock absorbers 204, and the rubber shock absorbers 204 are arranged between the two mounting beams 101; two rubber dampers 204 have a clearance with the frame 1.
The upper ends of the centers of the two rotary beam plates 201 are respectively provided with a mounting hole, the two copper sleeves 205 are arranged between the two rotary beam plates 201 and are matched with the mounting holes in a coaxial way, and the outer side surfaces of the two copper sleeves 205 with flanges are overlapped with the inner side surfaces of the corresponding rotary beam plates 201; a shaft sleeve 206 coaxial with the two copper sleeves 205 is arranged between the two copper sleeves 205, and two ends of the shaft sleeve 206 are respectively overlapped with the inner side surfaces of the two copper sleeves 205 with flanges; a rotating shaft 207 is further arranged between the two rotating beam plates 201, and is coaxially matched with the mounting hole and penetrates through the two rotating beam plates to form a hinge structure.
The two rubber dampers 204 are fixedly connected with the mounting seat 203 through threaded fit.
One end of the rotating shaft 207 is a flange, the other end is a thread, and after the rotating shaft 207 penetrates through the rotating beam plate 201, the thread end is locked and positioned by matching with a hexagonal slotted nut 208.
The hexagonal slotted nut 208 is provided with a cotter hole 209 perpendicular to the rotation axis of the screw thread, and is locked by matching with a cotter pin 210.
The outer circular surface of the shaft sleeve 206 is in coaxial contact fit with the opening on the floating mounting beam 101 on the frame 1.
The working principle of the utility model is as follows:
the rear axle floating structure is rigidly connected with the rear axle, and when the device runs on uneven road surfaces, the rotary beam plate 201 of the rear axle floating structure 2 can swing up and down along with the fluctuation of the road surfaces. When the vehicle passes through the raised pavement, the rotating beam plate 201 on one side of the raised pavement swings upwards with the rotating shaft 207 serving as a fulcrum along with the movement track of the tires, the other end of the rotating beam plate 201 swings downwards, when the vehicle passes through the recessed pavement, the rotating beam plate 201 on one side of the recessed pavement swings downwards with the rotating shaft 207 serving as a fulcrum along with the movement track of the tires, the other end of the rotating beam plate 201 swings upwards, and the two tires can land simultaneously as the fulcrums, so that the vehicle can pass through the poor pavement, the possibility of skidding of the tires on one side is reduced, the enough adhesive force between the left and right tires of the rear axle and the ground is ensured, namely the driving force and the braking force are realized, and the stability of the vehicle is improved.
When the road surface undulation is large and the rear axle floating structure 2 is subjected to large impact, the rubber shock absorber 204 can contact with the floating mounting beam 101 along with the upward swing of the rotating beam plate 201 to play a role in shock absorption, buffering and limiting, so that the whole frame 1 is ensured not to topple over due to overlarge side-tipping angle and the stability and smoothness of the whole vehicle are influenced.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims (7)
1. The utility model provides a rear axle floating AGV frame device, includes frame (1) and rear axle floating structure (2), its characterized in that:
the rear axle floating structure (2) is arranged at the rear end of the frame (1), the rear axle floating structure (2) is integrally in a shape of a Chinese character 'ji' with high middle and low two ends, the rear axle floating structure (2) is arranged in parallel with a frame cross beam, the top of the rear axle floating structure (2) is connected with the frame (1) through a rotating shaft (207), rubber shock absorbers (204) are arranged at the upper parts of the two ends of the bottom of the rear axle floating structure (2), and when the rear axle floating structure (2) is in a horizontal position, gaps exist between the top ends of the rubber shock absorbers (204) at the two ends and the frame (1); the lower parts of the two ends of the bottom of the rear axle floating structure (2) are used for connecting the rear axle.
2. The rear axle floating AGV frame assembly of claim 1 wherein: the rear axle floating structure (2) comprises two rotary beam plates (201) which are arranged at intervals from front to back, two connecting plates (202) are arranged between the two rotary beam plates (201), and the two connecting plates (202) are respectively arranged at two ends of the rotary beam plates (201).
3. The rear axle floating AGV frame assembly of claim 2 wherein: the upper ends of the two connecting plates (202) are respectively provided with a mounting seat (203), the mounting seats (203) are connected with rubber shock absorbers (204), and the rubber shock absorbers (204) are arranged between the two mounting beams (101).
4. The rear axle floating AGV frame assembly of claim 2 wherein: the upper ends of the centers of the two rotary beam plates (201) are respectively provided with a mounting hole, the two copper sleeves (205) are arranged between the two rotary beam plates (201) and are matched with the mounting holes coaxially, and the outer side surfaces of the two copper sleeves (205) with the flanges are overlapped with the inner side surfaces of the corresponding rotary beam plates (201); a shaft sleeve (206) coaxial with the two copper sleeves (205) is arranged between the two copper sleeves (205), and two ends of the shaft sleeve (206) are respectively overlapped with the inner side surfaces of the two copper sleeves (205) with flanges; and a rotating shaft (207) is also arranged between the two rotating beam plates (201) and is coaxially matched with the mounting hole and penetrates through the mounting hole, so that a hinge structure is formed.
5. The rear axle floating AGV frame assembly according to claim 3 wherein: the two rubber shock absorbers (204) are fixedly connected with the mounting seat (203) through threaded fit.
6. The rear axle floating AGV frame assembly of claim 4 wherein: one end of the rotating shaft (207) is a flange, the other end of the rotating shaft is a thread, and after the rotating shaft (207) penetrates through the rotating beam plate (201), the threaded end is locked and positioned through matching with the hexagonal slotted nut (208).
7. The rear axle floating AGV frame assembly of claim 6 wherein: the hexagonal slotted nut (208) is provided with a cotter hole (209) in the direction perpendicular to the rotation axis of the screw thread, and is loose-proof through matching with a cotter pin (210).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321896467.XU CN220465612U (en) | 2023-07-19 | 2023-07-19 | Rear axle floating AGV frame device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321896467.XU CN220465612U (en) | 2023-07-19 | 2023-07-19 | Rear axle floating AGV frame device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220465612U true CN220465612U (en) | 2024-02-09 |
Family
ID=89797915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321896467.XU Active CN220465612U (en) | 2023-07-19 | 2023-07-19 | Rear axle floating AGV frame device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220465612U (en) |
-
2023
- 2023-07-19 CN CN202321896467.XU patent/CN220465612U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |