CN102537106A

CN102537106A - Automotive steering coupling

Info

Publication number: CN102537106A
Application number: CN2012100407396A
Authority: CN
Inventors: 田勇; 刘运峰; 王彦超; 王倩倩
Original assignee: YUBEI STEERING SYSTEM CO Ltd
Current assignee: YUBEI STEERING SYSTEM CO Ltd
Priority date: 2012-02-22
Filing date: 2012-02-22
Publication date: 2012-07-04

Abstract

The invention discloses an automotive steering coupling. The technical scheme of the automotive steering coupling mainly includes that the coupling comprises two connecting plates, an elastic cushion and elastic blocks, the elastic cushion is arranged between the two connecting plates, the elastic cushion, the front connecting plate and the rear connecting plate are circular plates, radial teeth are evenly distributed on the circumferential surface of each circular plate, axial grooves are evenly distributed on a hole wall of each circular plate, axial grooves are evenly distributed on the inner surface of a central hole of each connecting plate, the number of the axial grooves on the inner surface of the central hole of each connecting plate is half of that of the axial grooves on the central hole wall of the elastic cushion, axial clamp plates are evenly distributed on one end face of each connecting plate, the number of the clamp plates is half of that of the radial teeth on the circumferential surface of each connecting plate, the axial grooves evenly distributed on the surface of the central hole of each connecting plate are depth step grooves, the clamp plates are matched with the axial grooves on the central hole walls of the connecting plates and the axial grooves on the central hole wall of the elastic cushion, and the elastic blocks are arranged in the holes of the elastic cushion and in the holes of the connecting plates on two sides of the elastic cushion. The automotive steering coupling is used for an automotive steering mechanism.

Description

A kind of motor turning coupling

Technical field:

The present invention relates to a kind of coupling, particularly a kind of motor turning coupling.

Background technique:

The coupling of existing electric power steering system of automobile exists that switching-over has impact, feel is bad and defective such as noise is big.

Summary of the invention:

The object of the invention provides a kind of no impact, good hand touch and muting a kind of motor turning coupling.Technical solution of the present invention is it is characterized in that: said coupling is made up of connecting plate, cushion and elastomer block, and said cushion is located between said two connecting plates; Said cushion is a circular plate; Be evenly equipped with radial teeth on the circumferential surface of plate, the center of this elastic plate is provided with the hole, is evenly equipped with axial groove on the hole wall; Said two connecting plates are circular plate; Be evenly equipped with on the side face of this circular plate with the cushion side face on the identical radial teeth of radial teeth quantity, the center of this connecting plate is provided with the hole, is being evenly equipped with the half the axial groove that quantity is the axial groove quantity on the hole wall of cushion center on the internal surface of connecting plate center hole; On an end face of connecting plate, be evenly equipped with axial clamp; The quantity of this clamp is radial teeth half the on the connecting plate side face, and the axial groove that is uniformly distributed with on the above-mentioned connecting plate center hole surface is a depth stepped slot, and shallow slot is wherein being established a side of clamp; Axial groove on this clamp and the connecting plate center hole wall and the axial groove on the hole wall of cushion center match; The termination of above-mentioned clamp outer surface is provided with groove, and the relative convex body of shallow slot of the axial step groove on this groove and the connecting plate center hole wall matches, and the circumferential width of the radial teeth of said cushion is greater than the circumferential width of connecting plate radial teeth; Elastomer block places the connection plate hole of said cushion hole and cushion both sides, and the axial length of this elastomer block is greater than the axial length sum of cushion and two connecting plates.When relatively having switching-over, the present invention and existing technology do not have impact, good hand touch and muting remarkable advantage.

Description of drawings:

Fig. 1 is the plan view of motor turning coupling of the present invention; Fig. 2 is the side view of Fig. 1; Fig. 3 is the A-A sectional drawing of Fig. 1; Fig. 4 is the plan view of connecting plate; Fig. 5 is the side view of Fig. 4; Fig. 6 is the A-A sectional drawing of Fig. 4; Fig. 7 is that the B of Fig. 5 is to view; Fig. 8 is the plan view of cushion; Fig. 9 is the A-A cut-away view of Fig. 8; Figure 10 is that the master of elastomer block looks; Figure 11 is the side view of Figure 10.

Embodiment:

In conjunction with following embodiment the present invention is elaborated, motor turning coupling of the present invention is made up of cushion 2, forward and backward connecting plate 1,4 and elastomer block 3.The structure of said forward and backward connecting plate is identical, and an end of connecting plate is a disc, on the side face of dish, is uniformly distributed with 8 teeth 5; On the surface in dish hole, be uniformly distributed with 4 axial grooves 6, on a side end face of dish, be uniformly distributed with 4 axial clamps 7, axial groove 6 is dark, shallow stepped slot; Wherein shallow slot is being established clamp 7 one sides; On the outer surface of this clamp, be provided with draw-in groove 8, the relative convex body of shallow slot matches in this draw-in groove and the connecting plate dish hole, and the external end head of the outer surface of clamp is outer low and inner high inclined-plane.Said cushion 2 is a disk, is evenly equipped with 8 teeth 9 on the side face of disk, be evenly equipped with on the bore area of dish 8 with above-mentioned connecting plate on the groove 10 that matches of clamp 7, the circumferential width of 8 teeth 9 on this cushion is slightly larger than the circumferential width of the tooth 5 on the connecting plate.Cushion can be made with rubber, and two connecting plates are used for the stressed member of transmitting torque, can make with engineering plastics.The assembling method of coupling: after first 4 clamps with a connecting plate insert in the groove on the cushion hole wall respectively; 4 clamps with another connecting plate insert in 4 grooves in addition and the stepped slot on first connecting plate hole wall in the cushion again, and the clamp distortion gets into when putting in place in the groove during insertion, and clamp resets; Draw-in groove 8 on it blocks the disk body of another link; At last, elastomer block 4 is pushed in the hole of connecting plate and cushion, coupling promptly is assembled into.Coupling after the assembling is connected with reducer input shaft with motor shaft, has 4 end teeth that are uniformly distributed with on 4 end teeth that are uniformly distributed with and the reducer input shaft end face to insert respectively in the space between the tooth on coupling connecting plate and the cushion side face on the end face of motor shaft.When driver commutates; The end tooth of motor shaft at first makes behind the tooth compressive deformation of cushion to contact coupling to be rotated and drive the speed reducer input shaft with the tooth of connecting plate and rotates; Because the distortion of cushion tooth absorbs the impact of motor shaft and speed reducer input shaft; Thereby can not produce and impact and noise, and the impact of Elastic Block can absorb axially jumping of motor shaft the time.

Claims

1. motor turning coupling, it is characterized in that: said coupling is made up of connecting plate, cushion and elastomer block, and said cushion is located between said two connecting plates; Said cushion is a circular plate; Be evenly equipped with radial teeth on the circumferential surface of plate, the center of this elastic plate is provided with the hole, is evenly equipped with axial groove on the hole wall; Said two connecting plates are circular plate; Be evenly equipped with on the side face of this circular plate with the cushion side face on the identical radial teeth of radial teeth quantity, the center of this connecting plate is provided with the hole, is being evenly equipped with the half the axial groove that quantity is the axial groove quantity on the hole wall of cushion center on the internal surface of connecting plate center hole; On an end face of connecting plate, be evenly equipped with axial clamp; The quantity of this clamp is radial teeth half the on the connecting plate side face, and the axial groove that is uniformly distributed with on the above-mentioned connecting plate center hole surface is a depth stepped slot, and shallow slot is wherein being established a side of clamp; Axial groove on this clamp and the connecting plate center hole wall and the axial groove on the hole wall of cushion center match; The termination of above-mentioned clamp outer surface is provided with groove, and the relative convex body of shallow slot of the axial step groove on this groove and the connecting plate center hole wall matches, and the circumferential width of the radial teeth of said cushion is greater than the circumferential width of connecting plate radial teeth; Elastomer block places the connection plate hole of said cushion hole and cushion both sides, and the axial length of this elastomer block is greater than the axial length sum of cushion and two connecting plates.