Steering wheel damping device and novel steering wheel assembly

Abstract

The utility model provides a steering wheel damping device and a novel steering wheel assembly, based on a steering wheel, the steering wheel comprises a motor, a reduction gearbox, a wheel, a wheel carrier and a swing mechanism, the damping device is located between the wheel carrier and the swing mechanism, the damping device comprises a first mounting plate, an elastic component, a guide shaft and a second mounting plate, the first mounting plate and the second mounting plate are arranged in parallel; an elastic assembly and a guide shaft are arranged between the first mounting plate and the second mounting plate; the slewing mechanism is mounted on the upper surface of the first mounting plate, and the second mounting plate is fixed on the wheel carrier; the utility model aims to provide a steering wheel damping device which is suitable for a steering wheel, can realize damping, and can reduce the deviation of the relative position of a steering wheel rotation center and a frame in the horizontal direction, thereby solving the problem of the deviation of the relative position of the steering wheel rotation center and the frame.

Description

Technical Field

[0001] The utility model belongs to the field of steering wheel shock absorption, in particular to a steering wheel shock absorption device and a novel steering wheel assembly. Background Art

[0002] The steering wheel is one of the core components of electric industrial vehicles. The steering wheel is used to provide forward power and control the forward direction. The steering wheel assembly usually integrates a motor, a reduction gearbox, a wheel and a slewing mechanism. The existing steering wheel is provided with a shock absorbing mechanism, which usually includes a spring. In the existing shock absorbing mechanism, there is a situation where the relative position of the steering wheel rotation center and the frame is offset during the movement of the wheel system, and the offset changes continuously with the change of load and the unevenness of the ground. This irregular change has an adverse effect on the stability and precise control of the vehicle. Utility Model Content

[0003] In view of this, the utility model aims to provide a steering wheel shock absorbing device, which is suitable for a steering wheel, can achieve shock absorption, and can reduce the offset of the relative position of the steering wheel rotation center and the frame in the horizontal direction.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] A steering wheel shock absorbing device is based on the steering wheel. The steering wheel includes a motor, a reduction box, a wheel, a wheel frame and a slewing mechanism. The shock absorbing device is located between the wheel frame and the slewing mechanism. The shock absorbing device includes a first mounting plate, an elastic component, a guide shaft and a second mounting plate. The first mounting plate and the second mounting plate are arranged parallel to each other; the elastic component and the guide shaft are arranged between the first mounting plate and the second mounting plate; the slewing mechanism is installed on the upper surface of the first mounting plate, and the second mounting plate is fixed on the wheel frame;

[0006] The elastic components include a plurality of elastic components, which are evenly arranged around the rotation center of the steering wheel. The elastic components include a spring, a spring shaft and a spring pin. The spring is sleeved on the spring shaft. The lower part of the spring shaft is connected to the spring pin. The upper part of the spring shaft is fixedly connected to the first mounting plate. The spring pin is located outside the second mounting plate.

[0007] The guide shafts include two or more, which are located between the elastic components and arranged along two opposite sides of the wheel frame; the guide shaft includes a pin, a pin shaft and a sleeve, the pin is connected to the pin shaft, and the pin shaft is installed in the sleeve; the pin passes through the first mounting plate, and the sleeve is arranged on the second mounting plate.

[0008] Furthermore, the first mounting plate and the second mounting plate are square in shape as a whole, and the elastic components include four components, which are respectively located at the four corners of the first mounting plate and / or the second mounting plate.

[0009] Furthermore, the guide shaft is located at a corresponding position on the inner side of the wheel.

[0010] Furthermore, the elastic components are arranged at intervals along the side of the first mounting plate with the rotating mechanism as the center.

[0011] Furthermore, the first mounting plate and the second mounting plate have the same shape.

[0012] A novel steering wheel assembly includes the steering wheel shock absorbing device, a wheel is symmetrically arranged on two opposite sides of the wheel frame, the slewing mechanism is located at the center of the wheel frame, and the guide shafts include two, which are respectively located at corresponding positions on the inner sides of the two wheels.

[0013] Furthermore, the axis of the guide shaft corresponds to the center line of the wheel.

[0014] Furthermore, the motor and the reduction gearbox are fixedly connected to the side of the wheel frame and are located in the middle area between the two wheels.

[0015] Compared with the prior art, the steering wheel shock absorbing device described in the utility model has the following advantages:

[0016] The steering wheel shock absorbing device described in the utility model is provided with a first mounting plate, an elastic component, a guide shaft and a second mounting plate. When the frame vibrates, the spring of the elastic component is compressed to achieve shock absorption, and at the same time the wheel frame and the wheel will move along the axial direction of the guide shaft. On the basis of shock absorption, the error in the horizontal direction with the ground caused by the deformation of the shock absorbing mechanism during the movement of the steering wheel can be eliminated, thereby solving the problem of relative position offset between the steering wheel rotation center and the frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the steering wheel shock absorbing device and the steering wheel assembly structure according to an embodiment of the utility model;

[0019] Figure 2 for Figure 1 A top view of the steering wheel shock absorbing device and the steering wheel assembly described in;

[0020] Figure 3 for Figure 2 Sectional view at position AA.

[0021] Description of reference numerals:

[0022] 1-first mounting plate; 2-elastic component; 3-guide shaft; 4-second mounting plate; 5-slewing mechanism; 6-wheel; 7-motor; 8-reduction box; 9-wheel frame; 10-wheel center line; 11-pin; 12-sleeve; 13-pin shaft; 14-spring shaft; 15-spring; 16-spring pin. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0024] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0025] like Figure 1 , Figure 2 , Figure 3 As shown, a steering wheel shock absorbing device is based on the steering wheel. The steering wheel includes a motor 7, a reduction box 8, a wheel 6, a wheel frame 9 and a slewing mechanism 5. The shock absorbing device is located between the wheel frame 9 and the slewing mechanism 5. The shock absorbing device includes a first mounting plate 1, an elastic component 2, a guide shaft 3 and a second mounting plate 4. The first mounting plate 1 and the second mounting plate 4 are square in shape and arranged parallel to each other. The elastic component 2 and the guide shaft 3 are arranged between the first mounting plate 1 and the second mounting plate 4. The slewing mechanism 5 is installed on the upper surface of the first mounting plate 1, and the second mounting plate 4 is fixed on the wheel frame 9.

[0026] The elastic component 2 includes a plurality of elastic components, which are evenly arranged around the rotation center of the steering wheel. The elastic component 2 includes a spring 15, a spring shaft 14 and a spring pin 16. The spring 15 is sleeved on the spring shaft 14. The lower part of the spring shaft 14 is connected to the spring pin 16. The upper part of the spring shaft 14 is fixedly connected to the first mounting plate 1. The spring pin 16 is located outside the second mounting plate 4.

[0027] The guide shaft 3 includes two or more, which are located between the elastic components 2 and are arranged along two opposite sides of the wheel frame 9; the guide shaft 3 includes a pin 11, a pin shaft 13 and a sleeve 12, the pin 11 is connected to the pin shaft 13, and the pin shaft is assembled in the sleeve 12; the pin 11 passes through the first mounting plate 1, and the sleeve 12 is arranged on the second mounting plate 4.

[0028] The utility model discloses a steering wheel shock absorbing device. When the load of the frame changes or the ground is uneven, the shock absorbing device starts to work. When the frame vibrates, the wheel frame 9 and the wheel 6 will move along the axis direction of the guide shaft, and the spring of the elastic component 2 will be compressed to achieve shock absorption. The pin shaft 13 is installed in the shaft sleeve 12, and the pin shaft 13 moves along the shaft sleeve 12. The pin shaft 13 and the shaft sleeve 12 cooperate to play a guiding role, and the wheel frame 9 and the wheel 6 will not move in a direction other than the guide. Among them, it is more preferred that the guide shafts 3 are 2 and are symmetrically arranged along the rotation center of the steering wheel. While the spring 15 is shock absorbing, the guide shaft cooperates with the pin 11, the pin shaft 13 and the shaft sleeve 12 to control the direction of the shock absorbing movement to move along the axis direction of the guide shaft. Through the shock absorbing device and the guide shaft, on the basis of shock absorption, the error in the horizontal direction of the ground caused by the deformation of the shock absorbing mechanism during the movement of the steering wheel can be eliminated, thereby solving the problem of relative position offset between the steering wheel rotation center and the frame.

[0029] like Figure 2 As shown, the first mounting plate 1 and the second mounting plate 4 are square in shape as a whole, and the elastic components 2 include four components, which are respectively located at the four corners of the first mounting plate 1 and / or the second mounting plate 4. Figure 1 , Figure 2 As shown, the guide shaft 3 is located at a corresponding position inside the wheel 6. The layout is reasonable and the structure is simplified.

[0030] like Figure 1 , Figure 2 As shown, the elastic components 2 are arranged at intervals along the side of the first mounting plate 1 with the rotating mechanism 5 as the center. Figure 1 , Figure 2 As shown, the first mounting plate 1 has the same shape as the second mounting plate 4. The layout is more reasonable, and the shock absorption effect is further improved.

[0031] like Figure 1 , Figure 2 As shown, the utility model also provides a new steering wheel assembly, including the above-mentioned steering wheel shock absorbing device, the wheel frame 9 is symmetrically provided with a wheel 6 on two opposite sides, the slewing mechanism 5 is located at the center of the wheel frame 9, and the guide shaft 3 includes two, and the two guide shafts 3 are respectively located at the corresponding positions inside the two wheels 6. Among them, the steering wheel assembly of the utility model integrates the motor 7, the reduction box 8, the wheel 6, the wheel frame 9, the slewing mechanism 5 and the shock absorbing device, has a shock absorbing effect, and can eliminate the error in the horizontal direction with the ground caused by the deformation of the spring during the movement of the steering wheel, thereby solving the problem of the relative position offset between the steering wheel rotation center and the frame.

[0032] like Figure 2 As shown, the axis of the guide shaft 3 corresponds to the wheel centerline 10. The guiding effect of the guide shaft is improved, and the offset between the steering wheel center and the frame in the horizontal direction is better eliminated.

[0033] like Figure 1 As shown, the motor 7 and the reduction box 8 are fixedly connected to the side of the wheel frame and are located in the middle area of ​​the two wheels 6. The structure is compact and the layout is more reasonable, which is conducive to improving the stability of operation.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A steering wheel damping device, based on a steering wheel, the steering wheel comprising a motor (7), a reduction gearbox (8), a wheel (6), a wheel frame (9) and a slewing mechanism (5), characterized in that: The shock absorbing device is located between the wheel frame (9) and the slewing mechanism (5), and comprises a first mounting plate (1), an elastic component (2), a guide shaft (3) and a second mounting plate (4), wherein the first mounting plate (1) and the second mounting plate (4) are arranged parallel to each other; the elastic component (2) and the guide shaft (3) are arranged between the first mounting plate (1) and the second mounting plate (4); the slewing mechanism (5) is installed on the upper surface of the first mounting plate (1), and the second mounting plate (4) is fixed on the wheel frame (9); The elastic component (2) comprises a plurality of elastic components, and the plurality of elastic components are evenly arranged around the rotation center of the steering wheel. The elastic component (2) comprises a spring (15), a spring shaft (14) and a spring pin (16). The spring (15) is sleeved on the spring shaft (14). The lower part of the spring shaft (14) is connected to the spring pin (16). The upper part of the spring shaft (14) is fixedly connected to the first mounting plate (1). The spring pin (16) is located on the outer side of the second mounting plate (4). The guide shafts (3) include two or more guide shafts, which are located between the elastic components (2) and are arranged along two opposite sides of the wheel frame (9); the guide shaft (3) includes a pin (11), a pin shaft (13) and a shaft sleeve (12); the pin (11) is connected to the pin shaft (13), and the pin shaft is mounted in the shaft sleeve (12); the pin (11) passes through the first mounting plate (1), and the shaft sleeve (12) is arranged on the second mounting plate (4).

2. The steering wheel shock absorbing device according to claim 1, characterized in that: The first mounting plate (1) and the second mounting plate (4) are square in shape as a whole, and the elastic components (2) include four components, which are respectively located at the four corners of the first mounting plate (1) and / or the second mounting plate (4).

3. The steering wheel shock absorbing device according to claim 1, characterized in that: The guide shaft (3) is located at a corresponding position on the inner side of the wheel (6).

4. The steering wheel shock absorbing device according to claim 1, characterized in that: The elastic components (2) are arranged at intervals along the side of the first mounting plate (1) with the rotating mechanism (5) as the center.

5. The steering wheel shock absorbing device according to claim 1, characterized in that: The first mounting plate (1) and the second mounting plate (4) have the same shape.

6. A novel steering wheel assembly, comprising the steering wheel shock absorbing device according to any one of claims 1 to 5, characterized in that: The wheel frame (9) is symmetrically provided with a wheel (6) on two opposite sides, the slewing mechanism (5) is located at the center of the wheel frame (9), and the guide shafts (3) include two, and the two guide shafts (3) are respectively located at corresponding positions on the inner sides of the two wheels (6).

7. The new steering wheel assembly according to claim 6 is characterized by: The axis of the guide shaft (3) corresponds to the wheel centerline (10).

8. The new steering wheel assembly according to claim 7 is characterized by: The motor (7) and the reduction box (8) are fixedly connected to the side of the wheel frame and are located in the middle area of ​​the two wheels (6).

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