Gear absorption driving part shaking gap structure

Abstract

The utility model discloses a gear absorption driving part shaking gap structure which comprises a clock spring, a driving ring connected with the clock spring and a driven gear, and the driven gear drives the clock spring through the driving ring. A driving rib is arranged on the inner ring of the driven gear, a driving groove is formed in the peripheral side wall of the driving ring, the driving ring is contained in the inner ring of the driven gear, and the driving rib is inserted into the driving groove in the radial direction; the driven gear is installed in the steering wheel base, and the fit clearance between the driven gear and the steering wheel base ranges from 0.05 mm to 0.25 mm. According to the utility model, a group of driving rib grooves are arranged on the clock spring driving ring and the driven gear, small clearance fit is adopted in the driving rotation direction of the driving rib grooves, and limitation is completely released in the driving vertical direction, that is, the shaking quantity of the clock spring driving ring in the Y direction can be absorbed in the Y direction, and the shaking quantity of the clock spring in the X direction is absorbed through the rotation of the driven gear; the driven gear is in small clearance fit with the base, can only rotate and cannot shake in the X direction and the Y direction.

Description

TECHNICAL FIELD

[0001] The utility model relates to steering wheel structure technical field, concretely is a gear absorption drive component shake gap structure. BACKGROUND

[0002] On the drive structure of clock spring and angle sensor in combination switch, the conventional structure adopts 180 degrees symmetrical two muscle grooves drive, and the drive cooperation of this mode cannot absorb the gap shake amount of 90 degrees direction of drive muscle groove, when the clock spring eccentric and steering wheel assemble, the extrusion force is produced in the drive part, and the abnormal sound is produced. The utility model structure just solves this problem, and the structure is simple, the function is reliable, and the cooperation size chain is less. SUMMARY

[0003] In order to solve the defects in the prior art, the utility model provides a gear absorption drive component shake gap structure.

[0004] In order to solve the above technical problem, the utility model provides the following technical scheme:

[0005] The utility model discloses a gear absorption drive component shake gap structure, including clock spring, the drive ring that is connected with clock spring and driven gear, and the clock spring is driven by the drive ring of driven gear;

[0006] The inner ring of driven gear is provided with drive muscle, and the peripheral side wall of drive ring is provided with drive groove, drive ring is contained in the inner ring of driven gear, and drive muscle is inserted into drive groove in radial direction;

[0007] Driven gear is installed into steering wheel base, and the cooperation gap of driven gear and steering wheel base is between 0.05mm-0.25mm.

[0008] As a preferred technical scheme of the utility model, drive muscle and drive groove only set a group.

[0009] As a preferred technical scheme of the utility model, the installation gap of clock spring and steering wheel shell is between 1mm-2mm.

[0010] As a preferred technical scheme of the utility model, drive muscle and drive groove are all arranged along radial direction.

[0011] As a preferred technical scheme of the utility model, the front end of drive muscle gradually increases in width relative to the rear end.

[0012] The utility model has the advantages of:

[0013] This invention features a set of drive ribs on the clock spring drive coil and the driven gear. The drive ribs are fitted with a small clearance in the direction of rotation, and the vertical direction of the drive is fully unrestricted. This means that the clock spring drive coil can absorb the amount of sway in the Y direction in the Y direction. The sway of the clock spring in the X direction is absorbed by the rotation of the driven gear. The driven gear is fitted with a small clearance to the base and can only rotate, not wobble in the XY direction. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the connection structure between the driving rib and the driving groove of this utility model;

[0017] Figure 3 This is a schematic diagram of the planar structure of this utility model (A in the figure is the driving gear). Detailed Implementation

[0018] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0019] Example: Figures 1-2 As shown, it includes a clock spring 1, a drive ring 2 connected to the clock spring 1, and a driven gear 3. The driven gear 3 drives the clock spring 1 through the drive ring 2. In order to fit the steering wheel, the clock spring 1 is theoretically designed with a large clearance. The installation gap between the clock spring 1 and the steering wheel housing is between 1mm and 2mm, and it usually has a wobble of about 1mm.

[0020] The driven gear 3 has a driving rib 31 on its inner ring, and a driving groove 21 is formed on the peripheral sidewall of the driving ring 2. The driving ring 2 is housed in the inner ring of the driven gear 3, and the driving rib 31 is radially inserted into the driving groove 21; see reference. Figure 1 and Figure 2 As shown, only one set of drive rib 31 and drive groove 21 is provided, and both drive rib 31 and drive groove 21 are arranged radially. The installation gap between the clock spring 1 and the steering wheel housing is between 1mm and 2mm. The front end of the drive rib 31 gradually increases in width relative to the rear end to improve driving stability.

[0021] The driven gear 3 is installed into the steering wheel base 4, and the clearance between the driven gear 3 and the steering wheel base 4 is between 0.05mm and 0.25mm.

[0022] Referring to Figure 2 As shown, by setting a driving rib groove on the clock spring driving ring and the driven gear, the driving rib groove drives the rotation direction with small gap fit, the vertical direction of driving is completely released from the limit, that is, the structure of the driving rib groove can absorb the shaking amount of the clock spring driving ring in Y direction, the shaking amount of the clock spring in X direction is absorbed by the rotation of the driven gear, and the driven gear and the base adopt small gap fit, which can only rotate and cannot shake in XY direction.

[0023] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A gear-driven component absorbing wobbling clearance structure, characterized in that, It includes a clock spring (1), a drive ring (2) connected to the clock spring (1), and a driven gear (3), which drives the clock spring (1) through the drive ring (2); The inner ring of the driven gear (3) is provided with a driving rib (31), and a driving groove (21) is provided on the peripheral side wall of the driving ring (2). The driving ring (2) is housed in the inner ring of the driven gear (3), and the driving rib (31) is radially inserted into the driving groove (21). The driven gear (3) is installed into the steering wheel base (4), and the clearance between the driven gear (3) and the steering wheel base (4) is between 0.05mm and 0.25mm.

2. The gear-absorbing drive component wobbling clearance structure according to claim 1, characterized in that, Only one set of drive ribs (31) and drive grooves (21) is provided.

3. The gear-absorbing drive component wobbling clearance structure according to claim 2, characterized in that, The installation gap between the clock spring (1) and the steering wheel housing is between 1mm and 2mm.

4. The gear-absorbing drive component wobbling clearance structure according to claim 1, characterized in that, Both the driving rib (31) and the driving groove (21) are arranged radially.

5. The gear-absorbing drive component wobbling clearance structure according to claim 1, characterized in that, The width of the front end of the driving rib (31) gradually increases relative to the rear end.

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