Damping type steering wheel mechanism

Abstract

The utility model provides a damping type steering wheel mechanism. The damping type steering wheel mechanism comprises a fixing frame, a floating frame, a spring and a steering wheel assembly. The fixing frame comprises an upper fixing plate, a lower fixing plate and a guide column. The upper fixing plate and the lower fixing plate are distributed up and down; the guide column is fixed between the upper fixing plate and the lower fixing plate; a floating mounting part and a steering wheel mounting part are arranged on the floating frame; the floating mounting part is arranged on the guide post in a sleeving manner; the spring is arranged on the guide column in a sleeving mode and located above the floating installation part. The two ends of the spring abut against the upper fixing plate and the floating installation part respectively. The steering wheel assembly is mounted on the steering wheel mounting part; the upper fixing plate and the lower fixing plate in the fixing frame are used for being connected with the frame of the AGV, in the walking process, the other structures, except the fixing frame, of the design structure can float, the longer the guide columns are, the larger the damping stroke is, and the arrangement has enough installation space, meets the large-stroke damping requirement and is high in stability.

Description

Technical Field

[0001] The utility model relates to the technical field of AGV steering wheels, in particular to a shock-absorbing steering wheel mechanism. Background Art

[0002] The requirements for the shock absorption effect, steering method, specifications and control method of the AGV steering wheel will vary according to different application scenarios. Now, for uneven venues, a stable AGV steering wheel with a large shock absorption stroke is needed. Since the shock absorption structure of the current steering wheel is basically set between the mounting frame and the wheel body, due to space limitations, a larger shock absorption stroke cannot be set, and therefore it cannot meet the requirements of this design. Utility Model Content

[0003] The purpose of the utility model is to provide a shock-absorbing steering wheel mechanism to solve the problems mentioned in the background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A shock-absorbing steering wheel mechanism comprises a fixed frame, a floating frame, a spring and a steering wheel assembly; the fixed frame comprises an upper fixed plate, a lower fixed plate and a guide column; the upper fixed plate and the lower fixed plate are arranged in an upper and lower distribution; the guide column is fixed between the upper fixed plate and the lower fixed plate; the floating frame is provided with a floating mounting portion and a steering wheel mounting portion; the floating mounting portion is sleeved on the guide column; the spring is sleeved on the guide column and is located above the floating mounting portion; the two ends of the spring respectively contact the upper fixed plate and the floating mounting portion; the steering wheel assembly is mounted on the steering wheel mounting portion.

[0006] Further description of the utility model: two guide posts are provided and are distributed on the left and right sides; the floating mounting part is two guide sleeves connected to the upper rear of the floating frame; and the guide sleeves cooperate with the guide posts.

[0007] Further description of the utility model: the steering wheel mounting portion is a mounting hole; the steering wheel assembly includes a travel drive motor, a slewing support bearing, a reducer, a wheel and a steering drive device; the steering drive device includes a mounting plate, a steering drive motor and a driving gear; the mounting plate is fixed below the mounting hole; a gap avoidance hole is provided in the middle of the mounting plate; the front side of the mounting plate has a motor mounting portion; the steering drive motor is mounted on the motor mounting portion and the power output end is connected to the driving gear; the inner ring of the slewing support bearing is fixed to the bottom of the mounting plate; the outer teeth of the slewing support bearing are meshed with the driving gear; the reducer is fixed to the bottom of the outer ring of the slewing support bearing; the reducer has two left-right symmetrical output shafts; two wheels are provided and are respectively fixed on the output shafts; the travel drive motor passes through the mounting hole, the gap avoidance hole and the slewing support bearing from above and is connected to the reducer.

[0008] The beneficial effects of the utility model are:

[0009] The upper fixing plate and the lower fixing plate in the fixing frame of the present invention are used to connect with the frame of the AGV vehicle. During the walking process, except for the fixing frame, the rest of the structure of the present invention can float. The longer the guide column, the greater the shock absorption stroke. The setting has sufficient installation space to meet the shock absorption requirements of a large stroke and has high stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is the overall structure diagram of the utility model;

[0011] Figure 2 It is a structural diagram of the mounting plate of the utility model. DETAILED DESCRIPTION

[0012] The utility model is further described below in conjunction with the accompanying drawings:

[0013] like Figure 1-2 As shown, a shock-absorbing steering wheel mechanism comprises a fixed frame 1, a floating frame 2, a spring 3 and a steering wheel assembly 4; the fixed frame 1 comprises an upper fixed plate 11, a lower fixed plate 12 and a guide column 13; the upper fixed plate 11 and the lower fixed plate 12 are arranged in an upper and lower distribution; the guide column 13 is fixed between the upper fixed plate 11 and the lower fixed plate 12; the floating frame 2 is provided with a floating mounting portion 21 and a steering wheel mounting portion 22; the floating mounting portion 21 is sleeved on the guide column 13; the spring 3 is sleeved on the guide column 13 and Located above the floating mounting portion 21; the two ends of the spring 3 respectively touch the upper fixing plate 11 and the floating mounting portion 21; the steering wheel assembly 4 is installed on the steering wheel mounting portion 22; the upper fixing plate 11 and the lower fixing plate 12 in the fixing frame 1 of the present design are used to connect with the frame of the AGV vehicle. During the walking process, except for the fixing frame 1, the remaining structures of the present design structure can float. The longer the guide column 13, the greater the shock absorption stroke. The setting has sufficient installation space to meet the large stroke shock absorption requirements and has high stability.

[0014] The guide posts 13 are provided in two and are distributed on the left and right sides; the floating mounting portion 21 is two guide sleeves connected to the upper rear of the floating frame 2; the guide sleeves cooperate with the guide posts 13, and the arrangement has high stability.

[0015] The steering wheel mounting portion 22 is a mounting hole; the steering wheel assembly 4 includes a travel drive motor 41, a slewing support bearing 42, a reducer 43, a wheel 44 and a steering drive device 45; the steering drive device 45 includes a mounting plate 451, a steering drive motor 452 and a driving gear 453; the mounting plate 451 is fixed below the mounting hole; a clearance hole 4511 is provided in the middle of the mounting plate 451; a motor mounting portion 4512 is provided on the front side of the mounting plate 451; the steering drive motor 452 is mounted on the motor mounting portion 4512 and the power output end is connected to the driving gear 453; the slewing support The inner ring of the support bearing 42 is fixed to the bottom of the mounting plate 451; the outer teeth of the slewing support bearing 42 are meshed with the driving gear 453; the reducer 43 is fixed to the bottom of the outer ring of the slewing support bearing 42; the reducer 43 has two output shafts that are symmetrical on the left and right; two wheels 44 are arranged and fixed on the output shafts respectively; the travel drive motor 41 passes through the mounting hole, the air avoidance hole 4511 and the slewing support bearing 42 from above and is connected to the reducer 43, and the power is provided by the travel drive motor 41, and the wheel 44 is controlled to rotate and walk through the reducer 43, and the steering drive device 45 is used to control the steering.

[0016] The above description does not limit the technical scope of the present invention. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A shock-absorbing steering wheel mechanism, characterized in that: It includes a fixed frame, a floating frame, a spring and a steering wheel assembly; the fixed frame includes an upper fixed plate, a lower fixed plate and a guide column; the upper fixed plate and the lower fixed plate are arranged in an upper and lower distribution; the guide column is fixed between the upper fixed plate and the lower fixed plate; the floating frame is provided with a floating mounting part and a steering wheel mounting part; the floating mounting part is sleeved on the guide column; the spring is sleeved on the guide column and is located above the floating mounting part; the two ends of the spring respectively touch the upper fixed plate and the floating mounting part; the steering wheel assembly is installed on the steering wheel mounting part.

2. A shock-absorbing steering wheel mechanism according to claim 1, characterized in that: Two guide posts are provided and are distributed on the left and right sides; the floating mounting part is two guide sleeves connected to the upper rear of the floating frame; the guide sleeves cooperate with the guide posts.

3. A shock-absorbing steering wheel mechanism according to claim 1, characterized in that: The steering wheel mounting portion is a mounting hole; the steering wheel assembly includes a travel drive motor, a slewing support bearing, a reducer, a wheel and a steering drive device; the steering drive device includes a mounting plate, a steering drive motor and a driving gear; the mounting plate is fixed below the mounting hole; a gap avoidance hole is provided in the middle of the mounting plate; the front side of the mounting plate has a motor mounting portion; the steering drive motor is mounted on the motor mounting portion and the power output end is connected to the driving gear; the inner ring of the slewing support bearing is fixed to the bottom of the mounting plate; the outer teeth of the slewing support bearing are meshed with the driving gear; the reducer is fixed to the bottom of the outer ring of the slewing support bearing; the reducer has two left-right symmetrical output shafts; two wheels are provided and are respectively fixed on the output shafts; the travel drive motor passes through the mounting hole, the gap avoidance hole and the slewing support bearing from above and is connected to the reducer.

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