CN218430764U

CN218430764U - Outdoor heavy-load AGV chassis

Info

Publication number: CN218430764U
Application number: CN202222880183.3U
Authority: CN
Inventors: 邱峰; 陈博; 管聪聪; 王纪东; 冯海龙; 庞玉川
Original assignee: Linyi Lingong Intelligent Information Technology Co ltd
Current assignee: Linyi Lingong Intelligent Information Technology Co ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-02-03
Anticipated expiration: 2032-10-31

Abstract

The utility model belongs to the technical field of chassis of automatic guided vehicles, specifically discloses an outdoor heavy-load AGV chassis, which comprises a main frame body and drive assemblies, wherein both sides of the main frame body are respectively provided with one drive assembly, each drive assembly comprises a drive motor, a drive axle and a tire, the drive motor is in transmission connection with the drive axle, and both ends of the drive axle are in transmission connection with the tire; be connected with damper and support frame between transaxle and the body frame body, support frame one end articulates in the main part frame, other end fixed connection is in the transaxle, driving motor fixed connection is on the support frame, support frame and damper and the body frame body form triangle-shaped bearing structure, stability is higher during the heavy load, reduce the impact of unevenness road surface to whole automobile body and frock, improve the adhesive force of wheel, improve the self-adaptability to ground, avoid appearing stress concentration, improve AGV performance and reliability.

Description

Outdoor heavy-load AGV chassis

Technical Field

The utility model belongs to the technical field of automatic guided vehicle chassis, specifically speaking relates to an outdoor heavy load AGV chassis.

Background

An AGV (automated guided vehicle), also called an automated guided vehicle, is a mobile robot widely used in fields of park logistics, automation operation and the like. The chassis is a main body part forming the AGV and relates to a wheel system and a main frame, and the performance of the heavy-load AGV depends on the design of the chassis to a great extent. Under the load state of heavy load AGV, because the body frame moves down to lead to appearing stress concentration's phenomenon. And at heavy load AGV's the in-process of traveling, because ground is unsmooth, produce easily that whole car rocks and the unable problem that normally lands of drive wheel to lead to heavy load AGV to appear skidding and the phenomenon that the goods dropped.

The phenomenon of skidding for improving the drive wheel, weaken and rock the range, add in the AGV chassis and be equipped with the spring, rely on the spring to adapt to different environment ground, reach even running's purpose, nevertheless the spring loses elasticity easily and takes place to warp, and installation maintenance and clearance adjustment difficulty, consequently can't solve the problem that the automobile body rocked and the wheel skidded through using the spring shock attenuation in heavy load AGV, and a lot of heavy load AGV structures are too complicated again at present, the maintenance and the debugging degree of difficulty have been greater.

SUMMERY OF THE UTILITY MODEL

To heavily loaded AGV chassis structure among the above-mentioned prior art too complicated, the installation and debugging is loaded down with trivial details, and shock attenuation effect is not good enough during simple structure, can not effectively reduce uneven road surface to rock the problem with guaranteeing goods safety and stability transportation and effectively raising the efficiency with the influence of drive wheel adhesive force to the whole car, now provides an outdoor heavily loaded AGV chassis. The utility model provides a following technical scheme:

an outdoor heavy-load AGV chassis comprises a main frame body and driving assemblies, wherein two sides of the main frame body are respectively provided with one driving assembly, each driving assembly comprises a driving motor, a driving axle and a tire, the driving motors are connected to the driving axles in a transmission manner, and two ends of each driving axle are connected to the tire in a transmission manner; be connected with damper and support frame between transaxle and the body frame body, support frame one end articulates in the main part frame, and other end fixed connection is in the transaxle, and driving motor fixed connection is on the support frame, and support frame and damper and the body frame body form triangle-shaped bearing structure.

Furthermore, the driving assembly further comprises a transmission short shaft, and two ends of the transmission short shaft are in transmission connection with the driving motor and the driving axle.

Furthermore, the support frame is hinged with a hinged plate through a pin shaft, the main frame body is fixedly connected with a hinged seat, the hinged plate and the hinged seat are fixedly connected together through a connecting bolt, and a shaft sleeve is arranged between the hinged seat and the pin shaft.

Furthermore, the shock absorption assembly comprises a hanging seat, an upper spring seat, a lower spring seat, a bridge fixing base, a double-buffer spring, a damper and a limiting rod, wherein the hanging seat is fixedly connected to the main frame body, the upper spring seat is connected to the hanging seat through a bolt, the lower spring seat is fixedly connected with the bridge fixing base, and the bridge fixing base is fixedly connected to the drive axle; a double-buffer spring is arranged between the upper spring seat and the lower spring seat and is fixed in a limiting way through a limiting rod, and the upper end and the lower end of the damper are fixed on the upper spring seat and the bridge fixing base through bolts respectively.

Further, the axle unable adjustment base passes through the long bolt and installs on the transaxle.

Further, the lower spring seat is fixedly connected to the bridge fixing base through welding.

Further, the two driving assemblies are symmetrically arranged relative to the main frame body.

Furthermore, fixedly connected with motor mounting bracket on the support frame, motor mounting bracket is including connecting bent plate and motor PMKD, connects bent plate fixed connection and forms the arch support in motor PMKD both sides, and driving motor fixes on motor PMKD.

Furthermore, a rib plate is fixedly connected below the motor fixing bottom plate, and the rib plate is arched.

Furthermore, a polyurethane gasket is arranged between the connecting bent plate and the motor fixing bottom plate.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. simple structure adopts the heavy load AGV chassis structure of transaxle, effectively reduces the impact of unevenness road surface to whole automobile body and frock, improves the adhesive force of wheel, improves the self-adaptability to ground.

2. The utility model discloses a support frame and damper and the body frame body form triangle-shaped bearing structure, and under load condition, the support frame articulates in the main part frame, and pin joint through the support frame can satisfy reciprocating of the relative transaxle of the body frame body, and the while restricts rocking all around of frame, can avoid appearing stress concentration, improves AGV performance and reliability.

3. The special structure formed by the upper spring seat, the lower spring seat, the bridge fixing base and the double buffer springs, the damper and the limiting rod can play a good role in shock absorption and buffering.

4. The utility model discloses a symmetrical formula structure, simple structure, the motion is nimble, and installation maintenance is convenient, has improved the ability on AGV load and self-adaptation ground.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic diagram of the explosion structure of the present invention;

fig. 3 is a schematic view of the explosion structure of the driving assembly of the present invention;

fig. 4 is an exploded view of the motor mount of the present invention;

in the figure, 1, a main frame body; 2. a drive assembly; 21. a drive motor; 22. a drive stub shaft; 23. a drive axle; 24. a drive rim; 25. a tire; 26. a motor mounting bracket; 261. connecting the bent plates; 262. the motor fixes the bottom plate; 263. a rib plate; 27. a polyurethane gasket; 3. a shock absorbing assembly; 31. a hanging seat; 32. an upper spring seat; 33. a double buffer spring; 34. a lower spring seat; 35. a long bolt; 36. a limiting rod; 37. a bridge-securing base; 38. a damper; 4. a support frame; 51. a hinged seat; 52. a hinge plate; 53. a connecting bolt; 54. A pin shaft; 55. a shaft sleeve; 6. the support fixing seat.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following description, together with the drawings of the present invention, clearly and completely describes the technical solution of the present invention, and based on the embodiments in the present application, other similar embodiments obtained by those skilled in the art without creative efforts shall all belong to the protection scope of the present application. In addition, directional terms such as "upper", "lower", "left", "right", etc. in the following embodiments are directions with reference to the drawings only, and thus, the directional terms are used for illustration and not for limiting the invention.

As shown in fig. 1-2, an outdoor heavy-load AGV chassis comprises a main frame body 1 and drive assemblies 2, wherein two sides of the main frame body 1 are respectively provided with one drive assembly 2, each drive assembly 2 comprises a drive motor 21, a drive axle 23 and a tire 25, the drive motor 21 is in transmission connection with the drive axle 23, and two ends of the drive axle 23 are in transmission connection with the tire 25; be connected with damper 3 and support frame 4 between transaxle 23 and the body frame body 1, 4 one ends of support frame articulate in the main part frame, and the other end passes through 6 fixed connection in transaxle 23 of support fixing base, and driving motor 21 fixed connection is on support frame 4, and support frame 4 and damper 3 and the body frame body 1 form triangle-shaped bearing structure, and stability is higher during the heavy load.

As shown in fig. 2-3, the driving assembly 2 further includes a driving stub shaft 22 and a driving rim 24, wherein both ends of the driving stub shaft 22 are drivingly connected to the driving motor 21 and the driving bridge 23 for providing stable driving; the transmission short shaft 22 is specifically a stepped shaft, and two ends of the transmission short shaft are connected with the driving motor 21 and the driving axle 23 through flanges, so that the connection is stable; the driving rim 24 is directly and fixedly connected with the driving axle 23, the tyre 25 is a solid tyre 25 which is sleeved outside the driving rim 24, and the driving rim has high load capacity and strong stability.

As shown in fig. 2, furthermore, the hinge plate 52 is hinged on the support frame 4 through a pin 54, the main frame 1 is fixedly connected with the hinge seat 51, and the hinge plate 52 and the hinge seat 51 are fixed together through the connecting bolt 53, so that the support frame 4 is hinged with the main frame 1, when a vehicle is loaded or passes through uneven roads, the problem of stress concentration can be avoided, and the transportation stability is improved; and a shaft sleeve 55 is also arranged between the hinged seat 51 and the pin shaft 54, and the shaft sleeve 55 is sleeved outside the pin shaft 54, so that the friction of the support frame 4 during overturning is reduced, and the smoothness during shock absorption is improved.

As shown in fig. 2, the shock absorbing assembly 3 further includes a hanging seat 31, an upper spring seat 32, a lower spring seat 34, a bridge fixing base 37, a double buffer spring 33, a damper 38, and a limit rod 36, the hanging seat 31 is fixedly connected to the main frame body 1, the upper spring seat 32 is connected to the hanging seat 31 through a bolt, the lower spring seat 34 is fixedly connected to the bridge fixing base 37, and the bridge fixing base 37 is fixedly connected to the driving axle 23; a double buffer spring 33 is arranged between the upper spring seat 32 and the lower spring seat 34 and is limited and fixed through a limiting rod 36 to take charge of damping; the upper end and the lower end of the damper 38 are respectively fixed on the upper spring seat 32 and the bridge fixed base 37 through bolts, the lower end of the damper 38 is pressed on the bridge fixed base 37, and the upper end of the damper is pressed on the upper spring seat 32 and is responsible for inhibiting the potential energy bounce of the spring; the double buffer springs 33 and the dampers 38 can be compressed or extended along the axial direction of the limiting rods 36, and play a role in buffering during work, so that stable operation is guaranteed. Specifically, the axle fixing base 37 is mounted on the driving axle 23 through a long bolt 35, and the lower spring seat 34 is fixedly connected to the axle fixing base 37 through welding, so that the connection is stable.

As shown in fig. 1, further, the outdoor heavy-load AGV chassis has a symmetrical structure, and has two sets of driving assemblies 2, which can drive both front and rear, and the orientation of heavy goods placed on the main frame 1 does not need to be adjusted intentionally, thereby improving the loading efficiency.

As shown in fig. 2-4, further, a motor mounting bracket 26 is fixedly connected to the support frame 4, the motor mounting bracket 26 includes a connecting bending plate 261 and a motor fixing base plate 262, the connecting bending plate 261 is fixedly connected to two sides of the motor fixing base plate 262 to form an arched support, the driving motor 21 is fixed to the motor fixing base plate 262, two motor fixing base plates 262 are fixedly connected to the connecting bending plate 261, and a rib plate 263 is fixedly connected to the lower portion of the motor fixing base plate 262. The two motor fixing bottom plates 262 are connected through bolts, the driving motor 21 is fixedly connected to the motor fixing bottom plates 262, and the rib plates 263 are arched and connected to the lower portion of the motor fixing bottom plates 262, so that the fastening performance and the structural strength of the motor fixing bottom plates 262 are improved.

Further, as shown in fig. 4, a polyurethane gasket 27 is disposed between the connecting bending plate 261 and the motor fixing base plate 262 to provide a cushioning effect for the driving motor 21.

Claims

1. The outdoor heavy-load AGV chassis is characterized by comprising a main frame body (1) and driving assemblies (2), wherein one driving assembly (2) is arranged on each of two sides of the main frame body (1), each driving assembly (2) comprises a driving motor (21), a driving axle (23) and a tire (25), the driving motors (21) are in transmission connection with the driving axles (23), and two ends of each driving axle (23) are in transmission connection with the tires (25); be connected with damper (3) and support frame (4) between transaxle (23) and the body frame body (1), support frame (4) one end articulates in the main part frame, other end fixed connection in transaxle (23), driving motor (21) fixed connection is on support frame (4), support frame (4) and damper (3) and the body frame body (1) form triangle-shaped bearing structure.

2. The outdoor heavy-duty AGV chassis of claim 1, wherein said drive assembly (2) further comprises a drive stub shaft (22), said drive stub shaft (22) being drivingly connected at both ends to a drive motor (21) and a drive axle (23).

3. The outdoor heavy-load AGV chassis according to claim 1, characterized in that the support frame (4) is hinged to a hinge plate (52) through a pin (54), the main frame body (1) is fixedly connected to a hinge seat (51), the hinge plate (52) and the hinge seat (51) are fixedly connected together through a connecting bolt (53), and a shaft sleeve (55) is further disposed between the hinge seat (51) and the pin (54).

4. The outdoor heavy-load AGV chassis according to claim 1, wherein the shock absorption assembly (3) comprises a hanging seat (31), an upper spring seat (32), a lower spring seat (34), a bridge fixing base (37), a double-buffering spring (33), a damper (38) and a limiting rod (36), the hanging seat (31) is fixedly connected to the main frame body (1), the upper spring seat (32) is connected to the hanging seat (31) through a bolt, the lower spring seat (34) is fixedly connected to the bridge fixing base (37), and the bridge fixing base (37) is fixedly connected to the drive axle (23); a double-buffer spring (33) is arranged between the upper spring seat (32) and the lower spring seat (34) and is limited and fixed through a limiting rod (36), and the upper end and the lower end of the damper (38) are respectively fixed on the upper spring seat (32) and the bridge fixing base (37) through bolts.

5. The outdoor heavy-duty AGV chassis of claim 4, wherein the axle mount foot (37) is mounted to the drive axle (23) by means of long bolts (35).

6. An outdoor heavy-duty AGV chassis according to claim 4 or 5 wherein the lower spring mount (34) is fixedly attached to the bridge mounting base (37) by welding.

7. An outdoor heavy-duty AGV chassis according to claim 1, wherein the drive assemblies (2) are symmetrically arranged with respect to the main frame body (1).

8. The outdoor heavy-load AGV chassis according to claim 1, wherein a motor mounting rack (26) is fixedly connected to the supporting rack (4), the motor mounting rack (26) comprises a connecting bent plate (261) and a motor fixing bottom plate (262), the connecting bent plate (261) is fixedly connected to two sides of the motor fixing bottom plate (262) to form an arched support, and the driving motor (21) is fixed to the motor fixing bottom plate (262).

9. The outdoor heavy-load AGV chassis according to claim 8, wherein a rib plate (263) is fixedly connected to the lower portion of the motor fixing base plate (262), and the rib plate (263) is arched.

10. An outdoor heavy-duty AGV chassis according to claim 8 or 9, characterized in that a urethane gasket (27) is provided between the connecting bent plate (261) and the motor fixing base plate (262).