CN218839111U

CN218839111U - AGV driving mechanism traction device and AGV trolley with same

Info

Publication number: CN218839111U
Application number: CN202223138111.8U
Authority: CN
Inventors: 王智晟; 程达
Original assignee: Baic Lidai Industrial Technology Service Beijing Co ltd
Current assignee: Baic Lidai Industrial Technology Service Beijing Co ltd
Priority date: 2022-11-23
Filing date: 2022-11-23
Publication date: 2023-04-11
Anticipated expiration: 2032-11-23

Abstract

The utility model provides a AGV actuating mechanism draw gear and have device's AGV dolly relates to conveyer technical field, and the main objective is for the convenient lower pressure size of adjustment actuating mechanism to ground to it is more convenient to make this AGV dolly in the transportation and the switching between the two kinds of states of inserting the line. This AGV actuating mechanism draw gear includes: the lifting unit is provided with a lifting traction piece at one end; the driving unit comprises a driving assembly, a lifting bearing plate is arranged at the upper end of the driving assembly, and the lifting bearing plate is connected with the lifting traction piece and can move up and down under the driving of the lifting traction piece; when the drive assembly is in when going up and down to move under the drive of lift traction piece, the holding down force between drive unit and the ground changes to the contradiction between the power that traditional AGV leads to because of holding down force is limited and the line difficulty has been solved.

Description

AGV driving mechanism traction device and AGV trolley with same

Technical Field

The utility model belongs to the technical field of the conveyer technique and specifically relates to a AGV actuating mechanism draw gear and have device's AGV dolly is related to.

Background

AGV (Automated Guided Vehicles) is also known as an unmanned transport vehicle, an automatic Guided vehicle, a laser Guided vehicle. The automatic guided vehicle has the remarkable characteristics that the automatic guided vehicle is unmanned, an automatic guiding system is arranged on the AGV, the automatic guided vehicle can be ensured to automatically travel along a preset route under the condition of no need of manual navigation, and goods or materials are automatically conveyed to a destination from a starting point. With the gradual trend of automobile manufacturing technology towards the development of intellectualization, digitization, flexibility and other aspects, the capital investment and innovation strength of automobile manufacturers are increased in the aspect of automobile assembly, the AGV is used as a mobile carrier, not only can high-efficiency logistics transportation be realized, but also different operation strategies can be adjusted at any time according to the production process, unified allocation and centralized management are realized, and the traditional transportation mode is overturned by an unmanned transportation mode.

With the increasing number of the AGVs, the situations that a certain AGV transport device has problems during operation are also increased gradually, and at this time, manual offline processing needs to be performed on the AGV device with a fault. The driving wheels in the AGV driving unit provide driving power for the AGV driving unit, and the problem of power limitation is difficult to occur when the downward pressure and the friction force of the equipment to the ground are larger; on the contrary, when the AGV equipment needs to be offline, the lower the pressure and the friction force of the AGV equipment are, the better the AGV equipment needs to be, and the faulty equipment can be conveniently dragged away from the transportation route by maintenance personnel at the moment. Because the driving wheel in the driving unit of the AGV equipment in the working state has larger downward pressure and friction force to the ground, great difficulty is brought to the AGV maintenance by manual offline.

In order to solve the above problems, the AGV fault handling time is shortened, the response speed of the handling problem is increased, and the overall production efficiency of the enterprise is improved, so that a traction device capable of adjusting the downward pressure of the AGV equipment and an AGV trolley with the traction device are required to be developed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an AGV actuating mechanism draw gear and have device's AGV dolly to solve the technical problem of the unable adjustment of AGV equipment to the subaerial pressure that exists among the prior art. The utility model provides a plurality of technological effects that preferred technical scheme among a great deal of technical scheme can produce are seen in the explanation below in detail.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a AGV actuating mechanism draw gear, include:

the lifting unit is provided with a lifting traction piece at one end;

the driving unit comprises a driving assembly, a lifting bearing plate is arranged at the upper end of the driving assembly, and the lifting bearing plate is connected with the lifting traction piece and can move up and down under the driving of the lifting traction piece;

when the driving assembly is driven by the lifting traction piece to move up and down, the downward pressure between the driving unit and the ground is changed.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

As a further improvement of the present invention, the lifting traction member includes a rotating wheel and a support member formed on the rotating wheel, the support member is far away from the axis of the rotating wheel and is disposed toward the lifting bearing plate; the supporting piece is always positioned below the lifting bearing plate.

As a further improvement of the utility model, the supporting piece is a bolt bearing.

As a further improvement of the present invention, the lifting unit further comprises a driving member, wherein the driving member is any one of a motor, an electric cylinder, a hydraulic cylinder and a cylinder; the driving part can drive the rotating wheel to rotate.

As a further improvement of the present invention, the driving assembly further comprises a guide rod, an elastic member, a support frame and a sliding member;

the two ends of the guide rod are fixedly connected with the lifting bearing plate and the support frame, the sliding part and the elastic part are sleeved on the guide rod, and the elastic part is positioned between the sliding part and the support frame; the sliding part can press the elastic part and can slide and move relative to the axial direction of the guide rod.

As a further improvement of the utility model, the slider is including pressing the cover and compressing tightly the dish, compress tightly the dish pass through the sealing washer with the guide bar links to each other, press the cover to be located compress tightly the dish and keep away from the one end of elastic component.

As a further improvement of the present invention, the driving assembly further includes an adjusting member located on the guide bar, the adjusting member being located between the lifting bearing plate and the sliding member;

the maximum downward pressure of the driving unit on the ground can be adjusted by adjusting the position of the adjusting piece on the guide rod.

As a further improvement of the utility model, the adjusting part is adjusting nut, adjusting nut with guide bar threaded connection just adjusting nut is located the slider is kept away from one side of elastic component.

As a further improvement of the present invention, the driving unit further includes a driving wheel.

The utility model also provides a AGV dolly, including above-mentioned arbitrary any AGV actuating mechanism draw gear.

Compared with the prior art, the utility model discloses the technical scheme that the embodiment of preferred provided has following beneficial effect:

under the cooperation of piece and promotion bearing plate is drawn in the lift, drive assembly among the drive unit can carry out lift movement to make the holding down force between drive unit and the ground produce the change, thereby solved traditional AGV because of the holding down force is unadjustable and the power that leads to is limited and the contradiction between the difficulty of rolling off the production line, make AGV dolly can be convenient transport and roll off the production line two kinds of states between switch: when the lower pressure is increased, the driving unit can obtain larger friction force, so that the problem of power limitation of the trolley is avoided; when the downward pressure is reduced, the friction between the drive unit and the ground (also referred to as the transport path surface) is reduced, which makes it more convenient to take it off-line. In addition, the adjusting piece arranged on the driving assembly can adjust the maximum downward pressure between the driving wheel and the ground in a mode of adjusting the moving range of the sliding piece, so that the equipment can be suitable for different transportation occasions and transportation requirements, and the application environment of the equipment is expanded.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of the overall structure of the AGV driving mechanism traction device of the present invention;

FIG. 2 is a side view of an AGV drive mechanism traction apparatus of the present invention in a certain position;

FIG. 3 is a side view of the AGV drive mechanism traction device of the present invention in another state;

FIG. 4 is a schematic diagram of a cross-sectional structure of a traction device of an AGV driving mechanism according to the present invention;

FIG. 5 is a schematic diagram of a drive assembly of the AGV drive mechanism traction device of the present invention;

fig. 6 is a schematic diagram of a sectional structure of a driving assembly in a traction device of an AGV driving mechanism of the present invention.

In the figure: 1. a lifting unit; 11. lifting the traction member; 111. a rotating wheel; 112. a support member; 12. a drive member; 2. a drive unit; 21. a drive assembly; 211. lifting the bearing plate; 212. a guide rod; 213. an elastic member; 214. a support frame; 215. pressing a sleeve; 216. a compression disc; 217. an adjustment member; 22. and a driving wheel.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the 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 efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as the case may be, by those of ordinary skill in the art.

The technical solution of the present invention will be specifically described below with reference to the accompanying drawings.

The utility model provides a AGV drive mechanism draw gear, the device include lifting unit 1 and drive unit 2 two parts, and wherein drive unit 2 can be used for driving the AGV dolly and remove along prescribed route, and lifting unit 1 can match with drive unit 2 and adjust the underpressure of drive unit 2 to ground (its activity road surface promptly).

Specifically, a lifting traction piece 11 is formed at one end of the lifting unit 1; the driving unit 2 comprises a driving assembly 21, wherein the upper end of the driving assembly 21 is provided with a lifting bearing plate 211 capable of interacting with the lifting traction piece 11, and the lifting bearing plate 211 is connected with the lifting traction piece 11 and can move up and down under the driving of the lifting traction piece 11; when the driving assembly 21 is driven by the lifting traction member 11 to move up and down, the downward pressure between the driving unit 2 and the ground is changed.

When the lifting bearing plate 211 moves upward under the action of the lifting traction member 11, at least a part of the structure of the driving assembly 21 can move upward, so that the acting force between the driving assembly 21 and the driving unit 2 changes, the downward pressure of the driving unit 2 on the ground under the action of the driving assembly 21 is reduced, and the friction force between the driving assembly 21 and the ground is reduced. When the lifting bearing plate 211 is lifted to the highest position, the friction force between the driving assembly 21 and the ground is minimum, and corresponding AGV equipment can be conveniently subjected to offline processing; on the contrary, the pushing down force and the friction force of the driving assembly 21 to the ground are the largest, the AGV is not easy to slip during transportation, and the problem of limited power can be effectively solved, so that the AGV can be conveniently switched between two different working states of transportation and offline, and the contradiction between the limited power and the offline difficulty caused by the fact that the pushing down force to the ground of the traditional AGV cannot be adjusted is solved.

The overall construction of the apparatus is shown in fig. 1, wherein the drive unit 2 further comprises a drive wheel 22, and the AGV drive mechanism traction means is moved on the respective transport road surface by means of the drive wheel 22.

The structure of the lifting traction element 11 is explained in detail below:

as an alternative embodiment, the lifting traction member 11 includes a rotating wheel 111 and a bearing 112 formed on the rotating wheel 111, the bearing 112 is disposed away from the axis of the rotating wheel 111 and toward the lifting bearing plate 211; the supporting member 112 is always located below the lifting bearing plate 211.

Since the support 112 is located at a non-axial position of the rotation wheel 111, the support 112 can rotate in a vertical plane and exhibit an up-and-down movement when the rotation wheel 111 rotates. In addition, the supporting member 112 is always located below the lifting bearing plate 211, so that when the supporting member 112 is driven by the rotating wheel 111 to rotate and move up and down, the lifting bearing plate 211 also moves up and down accordingly.

Specifically, in the embodiment, the supporting member 112 is a bolt bearing, wherein a bearing portion of the bolt bearing contacts with the lifting bearing plate 211, so as to reduce the friction between the two contacting portions, thereby preventing the device from being worn after multiple uses.

In this embodiment, the lifting bearing plate 211 is a sheet structure with a certain thickness, and the shape thereof may be circular, square or other structures, as long as it is ensured that the lifting bearing plate 211 is always located above the supporting member 112 and the projections of the lifting bearing plate 211 and the supporting member 112 in the vertical line direction are overlapped, and at this time, it is ensured that the lifting bearing plate 211 can be lifted and lowered under the action of the supporting member 112.

In order to drive the rotating wheel 111, so that the rotating wheel 111 can rotate along the axis thereof, as an alternative embodiment, the lifting unit 1 further includes a driving member 12, where the driving member 12 is any one of a motor, an electric cylinder, a hydraulic cylinder, and an air cylinder; the driving member 12 can drive the rotation wheel 111 to rotate.

As shown in fig. 1, the drive member 12 is shown as an electric motor. It should be noted that the actuators 12 described above can be fixedly attached to the AGV body (body portions not shown) so that the height of the actuators 12 remains constant throughout.

In the prior art, the downward pressure of the drive unit 2 is applied to the ground by a spring, and therefore, the higher the height of the drive unit 2 lifted up, the lower the downward pressure to the ground when the drive unit 2 is lowered. Under the action of the drive 12, the AGV drive traction device can be switched between two different states as shown in fig. 2-3:

when the traction device is in the state shown in fig. 2, at this time, the driving member 12 drives the supporting member 112 in the lifting traction member 11 to move to the highest point, the lifting bearing plate 211 interacting with the driving member is also lifted to the highest point, the whole driving unit 2 is in a lifting state, and in this state, the AGV cart with the fault can conveniently perform offline processing; when the traction device is in a state shown in fig. 3, at this time, the driving member 12 drives the supporting member 112 in the lifting traction member 11 to move to the lowest point, the lifting bearing plate 211 interacting with the driving member also lowers to the lowest point, the whole driving unit 2 is in a state of lowering to an unadjusted state, the downward pressure of the driving unit 2 completely depends on the self-weight compression spring of the vehicle body and acts on the ground, and in this state, the AGV can avoid the situation of power limitation.

In FIGS. 2-3, the partial configuration of the AGV drive mechanism traction device is not shown for the sake of convenience in illustrating the various states of the device.

The structure of the above-described drive assembly 21 is described below:

as shown in fig. 5-6, the driving assembly 21 further includes a guide rod 212, an elastic member 213, a support bracket 214 and a sliding member; wherein, the two ends of the guide rod 212 are fixedly connected with a lifting bearing plate 211 and a supporting frame 214, the sliding part and the elastic part 213 are sleeved on the guide rod 212, and the elastic part 213 is positioned between the sliding part and the supporting frame 214; the slider can press the elastic member 213 and slidably move with respect to the axial direction of the guide rod 212.

Specifically, the elastic member 213 is a spring structure, and the spring is sleeved outside the guide rod 212, and the upper end of the spring is limited between the support bracket 214 and the sliding member by the sliding member.

As an alternative embodiment, the sliding member includes a pressing sleeve 215 and a pressing disc 216, the pressing disc 216 is connected to the guide rod 212 through a sealing ring, and the pressing sleeve 215 is located at one end of the pressing disc 216 far away from the elastic member 213.

The pressing disc 216 is a spring pressing disc 216, and can limit the spring, so that the problem that the spring is stressed unevenly or is inclined in the compression and relaxation processes is solved.

The pressing disc 216 is connected with the guide rod 212 in a sleeving manner, wherein the inner side wall of the pressing disc 216 is slidably connected with the guide rod 212 through an oil-free lubrication shaft sleeve, lip-shaped framework sealing rings are arranged at the upper end and the lower end of the oil-free lubrication shaft sleeve, and the sealing ring at the lower end is sealed through an annular elastic retainer ring.

The pressing sleeve 215 is positioned above the pressing disk 216 and is sleeved on the guide rod 212. The driving unit 2 further comprises a plate-shaped structure for limiting, the driving member 12 is fixedly disposed on the plate-shaped structure, and the pressing plate 216 is always located below the plate-shaped structure, so as to ensure that the pressing plate 216 can press the elastic member 213 when the lifting bearing plate 211 moves upwards.

When the lifting bearing plate 211 fixed to the upper end of the guide rod 212 moves upward or downward with the lifting traction member 11, the slider slides downward or upward with respect to the guide rod 212 and adjusts the degree of pressing of the spring in the process, and the force between the spring and the support bracket 214 changes. Since the support bracket 214 is fixedly mounted on the driving unit 2, the acting force between the driving unit 2 and the ground is changed along with the action of the spring.

In order to enhance the adaptability of the AGV drive unit 2 to different transportation surfaces and to make the application range wider, as an alternative embodiment, the drive assembly 21 further includes an adjusting member 217 on the guide rod 212, the adjusting member 217 is located between the lifting bearing plate 211 and the sliding member; the maximum pressing force of the drive unit 2 against the floor can be adjusted by adjusting the position of the adjusting member 217 on the guide rod 212.

In this AGV drive mechanism traction apparatus, the slider can move up and down with respect to the guide bar 212 only below the adjuster 217 as shown in fig. 4.

Specifically, the adjusting member 217 is an adjusting nut, the adjusting nut is screwed with the guiding rod 212, and the adjusting nut is located on a side of the sliding member far away from the elastic member 213.

The utility model also provides an AGV dolly, including above-mentioned arbitrary item AGV actuating mechanism draw gear.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An AGV drive mechanism traction device, comprising:

the lifting unit is provided with a lifting traction piece at one end;

2. The AGV drive mechanism traction device of claim 1, wherein the lifting traction member includes a rotating wheel and a bearing formed on the rotating wheel, the bearing being disposed away from an axis of the rotating wheel and toward the lift bearing plate; the supporting piece is always positioned below the lifting bearing plate.

3. The AGV drive traction device of claim 2 wherein the support is a bolt bearing.

4. The AGV drive traction device of claim 2 wherein the lift unit further comprises a drive member, the drive member being any one of a motor, an electric cylinder, a hydraulic cylinder, and an air cylinder; the driving part can drive the rotating wheel to rotate.

5. The AGV drive traction device of claim 1 wherein the drive assembly further includes a guide bar, a resilient member, a support bracket, and a slide;

the two ends of the guide rod are fixedly connected with the lifting bearing plate and the support frame, the sliding part and the elastic part are sleeved on the guide rod, and the elastic part is positioned between the sliding part and the support frame; the sliding member can press the elastic member and slidably move with respect to the axial direction of the guide bar.

6. An AGV drive mechanism traction apparatus according to claim 5, wherein said slider includes a pressing sleeve and a pressing disk, said pressing disk is connected to said guide bar by a seal ring, said pressing sleeve is located at an end of said pressing disk remote from said elastic member.

7. The AGV drive mechanism traction device of claim 5, wherein the drive assembly further comprises an adjustment member on the guide bar, the adjustment member being located between the lift bearing plate and the sled;

8. An AGV drive mechanism traction apparatus according to claim 7 wherein said adjustment member is an adjustment nut that is threaded to said guide bar and is located on a side of said slider away from said resilient member.

9. An AGV drive traction device according to claim 1 wherein the drive unit further includes drive wheels.

10. An AGV cart comprising an AGV drive traction apparatus according to any of claims 1 to 9.