CN219257476U

CN219257476U - Center steering gear with damping function

Info

Publication number: CN219257476U
Application number: CN202320951210.3U
Authority: CN
Inventors: 邵小辉; 王少烜; 吉言; 陈支宏; 陈华昭; 宋笑纯
Original assignee: Tianjin Longchuang Century Automotive Design Co ltd
Current assignee: Tianjin Longchuang Century Automotive Design Co ltd
Priority date: 2023-04-24
Filing date: 2023-04-24
Publication date: 2023-06-27
Anticipated expiration: 2033-04-24

Abstract

The utility model provides a center steering gear with a damping function, which comprises wheels, damping devices used for damping and steering devices used for providing steering power for the wheels, wherein the damping devices are arranged right above the wheels, wheel shafts are connected with brackets, the brackets are fixedly connected with the damping devices, and the steering devices are fixedly connected with the damping devices through mounting shells. The utility model can solve the problem of integration of steering and damping functions of tiny vehicle types such as AGVs.

Description

Center steering gear with damping function

Technical Field

The utility model relates to the technical field of automobile shock absorption, in particular to a central steering gear with a shock absorption function.

Background

The steering device of miniature AGV dolly now is difficult to arrange damping device, can produce great jolting on some complicated road surfaces, and to the adverse travel of AGV dolly, these vibrations probably still can produce the interference to the part on the car, damage even.

Disclosure of Invention

In view of the above, the present utility model is to provide a center steering gear with a damping function.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a take shock-absorbing function's center steering gear, includes the wheel, is used for the damping device of buffering and is used for providing the turning to the device for the wheel, damping device arrange in directly over the wheel, the axletree is connected with the support, the support with damping device fixed connection, turning to the device through the installation casing with damping device fixed connection.

In the utility model, preferably, the installation shell is slidingly connected with respect to the bracket, the top of the bracket is fixedly connected with a fixing block, the fixing block comprises a middle connecting part, a first connecting part and a second connecting part, the first connecting part, the middle connecting part and the second connecting part are integrally formed from bottom to top, the radial dimension of the middle connecting part is larger than that of the first connecting part, and the radial dimension of the first connecting part is larger than that of the second connecting part.

In the present utility model, preferably, the damping device includes a piston sleeve and a piston end cover, the piston end cover is fixedly connected with the piston sleeve, a cavity for accommodating a spring is formed between the piston sleeve and the piston end cover, one end of the spring is fixedly connected with the bottom of the piston end cover, the other end of the spring is fixedly connected with the top of the second connecting portion, and a circular groove is formed at the bottom of the piston sleeve.

In the present utility model, the size of the circular groove is preferably adapted to the outer diameter size of the piston sleeve.

In the present utility model, preferably, the end portion of the piston sleeve abuts against the lower edge of the intermediate connecting portion, and the inner diameter dimension of the bracket is equal to the outer diameter dimension of the first connecting portion.

In the present utility model, preferably, the steering device includes a steering motor, a first gear and a second gear, an output shaft of the steering motor is fixedly connected with the first gear, the first gear is meshed with the second gear, and the second gear is arranged outside the piston sleeve in a penetrating manner.

In the present utility model, preferably, a ball for limiting the vertical direction of the bracket is provided between the piston sleeve and the bracket.

In the present utility model, preferably, a deep groove ball bearing is provided between the mounting housing and the piston sleeve.

In the present utility model, preferably, a thrust bearing is provided between the piston end cover and the piston sleeve.

In the present utility model, preferably, a frame is externally connected to the top of the piston end cover.

The utility model has the advantages and positive effects that: the output shaft and the first gear shaft of steering motor are connected and transmitted to the first gear, the first gear is connected to the second gear through gear transmission, the second gear is transmitted to the support, the support drives the wheel to rotate, thereby realize steering function, in this embodiment, all be rigid connection between the output shaft of steering motor and the first gear, and between support and the second gear, install inside piston sleeve and the piston end cover, offer the cavity that is used for holding the spring between piston sleeve and the piston end cover, the one end of spring and the bottom fixed connection of piston end cover, the top fixed connection of the other end and the second connecting portion of spring, the circular slot has been offered to piston sleeve's bottom, the size of circular slot and piston sleeve's external diameter phase-match, piston sleeve can slide for the support, limit the lower extreme position of support through setting up the ball, the upper end is through the upper limit of spring travel control support, also the spring is compressed and produces elastic deformation until the upper extreme position of support, thereby the stroke that control support reciprocated, thereby play the absorbing effect, can effectively guarantee the relative position that steering gear and installation casing keep not to interfere with each other when wheel turns to through setting up deep groove ball bearing and thrust bearing, the AGV that makes two such functions of not successfully not to turn to the mutual shock absorbing function, the function of the vehicle type is not successfully solved.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is an overall block diagram of a center steering gear with shock absorbing function of the present utility model;

FIG. 2 is a cross-sectional view of a center diverter with shock absorbing capability in accordance with the present utility model;

fig. 3 is a structural view of a fixing block of a center steering gear with a shock absorbing function according to the present utility model.

In the figure: 1. a steering motor; 2. a first gear; 3. a second gear; 4. a piston end cap; 5. a thrust bearing; 6. deep groove ball bearings; 7. a mounting shell; 8. a spring; 9. a fixed block; 10. a ball; 11. a bracket; 12. a wheel; 13. an intermediate connection portion; 14. a first connection portion; 15. a second connecting portion; 16. a piston sleeve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, the utility model provides a center steering gear with a damping function, which comprises wheels 12, damping devices for buffering and steering devices for providing steering power for the wheels 12, wherein the damping devices are arranged right above the wheels 12, the wheels 12 are connected with a bracket 11 through a shaft, the bracket 11 is fixedly connected with the damping devices, the steering devices are fixedly connected with the damping devices through a mounting shell 7, the damping devices are arranged right above the wheels 12, the space layout can be effectively saved, and the center steering gear is suitable for the structural design of the steering and damping functions of tiny vehicle types such as AGVs.

In this embodiment, further, the installation housing 7 is slidingly connected with respect to the bracket 11, the top of the bracket 11 is fixedly connected with the fixing block 9, the fixing block 9 includes a middle connecting portion 13, a first connecting portion 14 and a second connecting portion 15, the first connecting portion 14, the middle connecting portion 13 and the second connecting portion 15 are integrally formed from bottom to top, the radial dimension of the middle connecting portion 13 is greater than the radial dimension of the first connecting portion 14, and the radial dimension of the first connecting portion 14 is greater than the radial dimension of the second connecting portion 15. Since the mounting case 7 is slid with respect to the bracket 11, when the bracket 11 moves downward until the intermediate connection portion 13 reaches the position of the ball 10, at this time, the lower limit position of the bracket 11, the lowest position of the bracket in the vertical direction is restricted.

In this embodiment, further, the damping device includes a piston sleeve 16 and a piston end cover 4, the piston end cover 4 is fixedly connected with the piston sleeve 16, a cavity for accommodating the spring 8 is formed between the piston sleeve 16 and the piston end cover 4, one end of the spring 8 is fixedly connected with the bottom of the piston end cover 4, the other end of the spring 8 is fixedly connected with the top of the second connecting portion 15, and a circular groove is formed in the bottom of the piston sleeve 16. Since the radial dimension of the first connecting portion 14 is larger than that of the second connecting portion 15, and the other end of the spring 8 is fixedly connected with the top of the second connecting portion 15,

in this embodiment, further, the size of the circular groove is adapted to the outer diameter size of the piston sleeve 16.

In this embodiment, further, the end of the piston sleeve 16 abuts against the lower edge of the intermediate connecting portion 13, and the inner diameter of the bracket 11 is equal to the outer diameter of the first connecting portion 14.

In this embodiment, further, the steering device includes a steering motor 1, a first gear 2 and a second gear 3, an output shaft of the steering motor 1 is fixedly connected with the first gear 2, the first gear 2 is meshed with the second gear 3, and the second gear 3 is arranged outside the piston sleeve 16 in a penetrating manner. The structural design of the steering device is not limited to the gear transmission structure, and the steering function can be realized by adopting a belt pulley transmission structure through the mutual matching among the steering motor 1, the first gear 2 and the second gear 3.

In the present embodiment, further, a ball 10 for limiting the vertical direction of the bracket 11 is provided between the piston sleeve 16 and the bracket 11.

In the present embodiment, further, a deep groove ball bearing 6 is provided between the mounting housing 7 and the piston sleeve 16.

In the present embodiment, further, a thrust bearing 5 is provided between the piston end cover 4 and the piston sleeve 16. Through setting up deep groove ball bearing 6 and footstep bearing 5, can effectively guarantee that the steering gear keeps motionless with the relative position of installation casing 7 when wheel 12 turns to for turn to and shock attenuation two functions each other noninterference, successfully solved the integration of the steering and shock attenuation function of this kind of tiny motorcycle type of AGV.

In this embodiment, further, the top of the piston end cover 4 is externally connected with a frame, and the frame is used for carrying other structures, so that the shock absorbing function of the steering gear is not interfered.

The working principle and working process of the utility model are as follows: during operation, firstly, input torque to the steering motor 1, the output shaft of the steering motor 1 is connected with the first gear 2 through the shaft and is transmitted to the first gear 2, the first gear 2 is connected to the second gear 3 through gear transmission, the second gear 3 is transmitted to the support 11, the support 11 drives the wheels 12 to rotate, and accordingly steering functions are achieved, in the embodiment, rigid connection is achieved between the output shaft of the steering motor 1 and the first gear 2 and between the support 11 and the second gear 3, the installation shell 7 is internally provided with a cavity 17 comprising a piston sleeve 16 and a piston end cover 4, a cavity 17 for accommodating a spring 8 is formed between the piston sleeve 16 and the piston end cover 4, one end of the spring 8 is fixedly connected with the bottom of the piston end cover 4, the other end of the spring 8 is fixedly connected with the top of the second connecting portion 15, a circular groove 18 is formed in the bottom of the piston sleeve 16, the circular groove 18 is matched with the outer diameter of the piston sleeve 16, the piston sleeve 16 can slide relative to the support 11, the lower limit position of the support 11 is limited through the arrangement of a ball 10, the upper end of the support 11 is controlled through the spring 8, namely, the upper limit of the spring 8 is controlled by the stroke of the support 11, the upper limit of the support 11 is compressed, the spring 8 is also controlled by the spring 8, the upper limit position of the support 11 is compressed, and accordingly the steering functions of the support 11 can be successfully achieved, the steering functions of the steering functions are achieved, and the steering functions of the vehicle can not be successfully achieved, and the steering functions are achieved, and the two-wheel-side vibration-damping device can be integrated, and the vibration-damping device can be successfully can be mounted with the steering wheels, and the vehicle-damping device, and has the vibration-damping functions are mounted, and the vibration-damping device can have the functions are integrated, and can and the vibration-damping functions. The scheme has the advantages of simple structure, small volume, easy operation, small arrangement space and low cost, and can be suitable for some compact tiny vehicle types.

The foregoing describes the embodiments of the present utility model in detail, but the description is only a preferred embodiment of the present utility model and should not be construed as limiting the scope of the utility model. All equivalent changes and modifications within the scope of the present utility model are intended to be covered by this patent.

Claims

1. The utility model provides a take shock-absorbing function's center steering gear, its characterized in that includes wheel (12), is used for the damping device of buffering and is used for providing steering power for wheel (12) turn to the device, damping device arrange in directly over wheel (12), wheel (12) hub connection has support (11), support (11) with damping device fixed connection, turn to the device through installation casing (7) with damping device fixed connection, installation casing (7) for support (11) sliding connection, the top fixedly connected with fixed block (9) of support (11), fixed block (9) include intermediate junction (13), first connecting portion (14) and second connecting portion (15), first connecting portion (14), intermediate junction (13) and second connecting portion (15) are by supreme integrated into one piece down.

2. A centre steering gear with damping function according to claim 1, characterized in that the radial dimension of the intermediate connection (13) is larger than the radial dimension of the first connection (14), the radial dimension of the first connection (14) being larger than the radial dimension of the second connection (15).

3. The center steering gear with the shock absorbing function according to claim 2, wherein the shock absorbing device comprises a piston sleeve (16) and a piston end cover (4), the piston end cover (4) is fixedly connected with the piston sleeve (16), a cavity for accommodating a spring (8) is formed between the piston sleeve (16) and the piston end cover (4), one end of the spring (8) is fixedly connected with the bottom of the piston end cover (4), the other end of the spring (8) is fixedly connected with the top of a second connecting portion (15), and a circular groove is formed in the bottom of the piston sleeve (16).

4. A centre steering gear with damping function according to claim 3, characterized in that the dimensions of the circular groove are adapted to the outer diameter dimensions of the piston sleeve (16).

5. A centre steering gear with damping function according to claim 3, characterized in that the end of the piston sleeve (16) abuts against the lower edge of the intermediate connection (13), the inner diameter of the bracket (11) being equal to the outer diameter of the first connection (14).

6. The center steering gear with the shock absorbing function according to claim 5, wherein the steering device comprises a steering motor (1), a first gear (2) and a second gear (3), an output shaft of the steering motor (1) is fixedly connected with the first gear (2), the first gear (2) is in meshed connection with the second gear (3), and the second gear (3) is arranged outside the piston sleeve (16) in a penetrating mode.

7. The center steering gear with damping function according to claim 6, characterized in that balls (10) for limiting the vertical direction of the bracket (11) are arranged between the piston sleeve (16) and the bracket (11).

8. A centre steering gear with damping function according to claim 3, characterized in that a deep groove ball bearing (6) is arranged between the mounting housing (7) and the piston sleeve (16).

9. A centre steering gear with damping function according to claim 3, characterized in that a thrust bearing (5) is arranged between the piston end cap (4) and the piston sleeve (16).

10. A centre steering gear with damping function according to claim 3, characterized in that the top of the piston end cap (4) is externally connected with a frame.