CN214248052U

CN214248052U - Coupling elastic cushion and motor buffer system composed of same

Info

Publication number: CN214248052U
Application number: CN202023302454.4U
Authority: CN
Inventors: 冯振; 胡远想; 张晓刚; 蔡黎明
Original assignee: Hangzhou New Shibao Electric Power Steeling Co ltd
Current assignee: Hangzhou New Shibao Electric Power Steeling Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-09-21
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a motor buffer system of shaft coupling cushion and constitution thereof, the cushion includes the cushion main part, be equipped with a plurality of elastic blade that outwards stretch out in the cushion main part, elastic blade with cushion main part fixed connection, a plurality of elastic blade are followed cushion main part circumference interval distribution, last protruding muscle and the bump of being provided with of elastic blade. The buffer system comprises a motor, a shaft coupler is arranged at the output shaft end of the motor, a shaft coupler elastic pad is arranged on the shaft coupler, and the shaft coupler elastic pad is matched with the shaft coupler. The utility model discloses an increased buffering bump and buffering protruding muscle, can carry the working property of system.

Description

Coupling elastic cushion and motor buffer system composed of same

Technical Field

The utility model relates to an electric power steering system (EPS), especially shaft coupling cushion and motor buffer system who constitutes thereof.

Background

An electric power steering system (EPS) is a power steering system which directly depends on a motor to provide auxiliary torque, and mainly comprises a torque sensor, a vehicle speed sensor, a motor, a speed reducing mechanism, an Electronic Control Unit (ECU) and the like. The motor works only when power is needed, when a driver operates a steering wheel, the torque angle sensor generates corresponding voltage signals according to the input torque and the steering angle, the vehicle speed sensor detects a vehicle speed signal, and the control unit gives instructions to control the motor to operate according to the signals of the voltage and the vehicle speed, so that the needed steering power is generated. Because of the operating characteristics of the electric power steering system, the power-assisted motor needs to be started and stopped frequently, and therefore, corresponding buffering needs to be designed for better protecting the motor.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model provides a shaft coupling cushion and motor buffer system who constitutes thereof, through the structural design to the cushion, avoid the shaft coupling cushion to frequently receive the impact and the attenuation, improved shaft coupling shock resistance, guarantee good transmission effect.

In order to achieve the purpose, the utility model discloses the technical scheme who takes is a coupler cushion, the cushion includes the cushion main part, be equipped with a plurality of resilient vane that outwards stretch out in the cushion main part, resilient vane with cushion main part fixed connection, a plurality of resilient vane follow cushion main part circumference interval distribution, the last protruding muscle and the bump of being provided with of resilient vane.

In an embodiment of the present invention, the plurality of elastic blades form a tooth-like structure on the elastic pad body, and the ribs are interdental ribs distributed on adjacent surfaces of any adjacent elastic blades.

In an embodiment of the present invention, the convex rib is distributed on the elastic blade along a direction parallel to the axis of the elastic pad main body.

In an embodiment of the present invention, the protruding points are distributed on the elastic blade located at the end face of the elastic pad of the shaft coupling.

In an embodiment of the present invention, the bumps are cylindrical.

In an embodiment of the present invention, the elastic cushion body has a connecting hole, and the connecting hole is located at the center of the elastic cushion body. The connecting hole is a through hole.

In an embodiment of the present invention, the elastic pad body is a circular ring.

In an embodiment of the present invention, the number of the elastic blades is eight, and the elastic blades are uniformly distributed on the periphery of the elastic pad body.

The motor buffer system comprises a coupler elastic pad and a motor, wherein a coupler is arranged at the output shaft end of the motor, the coupler elastic pad is arranged on the coupler, and the coupler elastic pad is matched with the coupler.

The technical scheme has the following beneficial effects:

the utility model discloses an all increase the protrusion structure at the radial of shaft coupling cushion and axial, make the moment transmission more steady, avoid entire system to receive the impact and the performance lowers.

The utility model has the advantages of as follows:

1: the impact on the worm caused by sudden starting of the motor is avoided.

2: improve the performance of the elastic cushion and prolong the service life of the elastic cushion.

3: because the worm has the helix angle, can produce an axial force when meshing with the worm wheel, because the cushion has certain thickness, some power of worm rod end can transmit the motor end like this, increases the bump at cushion axial contact surface, makes the transmission of axial force have a buffering process, can avoid the motor to receive the impact.

Drawings

Fig. 1 is a schematic structural diagram of a coupling elastic pad according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a motor damping system according to an embodiment of the present invention;

fig. 3 is a schematic view of the structure of fig. 2 from another angle according to the present invention.

Description of reference numerals: the elastic cushion comprises an elastic cushion body 1, elastic blades 2, convex ribs 3, convex points 4, a worm wheel 5, a worm 6, a motor 7, a coupler 8, a connecting hole 9 and a coupler elastic cushion 10.

Detailed Description

The invention will be further described with reference to the following examples and figures 1 to 3.

Example 1

A motor buffer system is shown in figures 2 and 3 and comprises a motor, wherein a shaft coupler 8 is arranged at the output shaft end of the motor, a shaft coupler elastic pad 10 is arranged on the shaft coupler 8, and the shaft coupler elastic pad 10 is matched with the shaft coupler 8. Through carrying out improved design to the structure of 8 cushion of shaft coupling, avoided the shaft coupling cushion to receive frequent impact and the attenuation, improved 8 shock resistance of shaft coupling for the combination between the drive mechanism is more smooth-going, in order to guarantee good transmission effect.

As shown in fig. 1, the shaft coupling cushion 10 includes cushion main body 1, be equipped with a plurality of flexible blade 2 that outwards stretch out in cushion main body 1, flexible blade 2 with cushion main body 1 fixed connection, a plurality of flexible blade 2 are followed 1 circumference interval distribution in cushion main body, be provided with protruding muscle 3 and bump 4 on the flexible blade 2, further play the cushioning effect through convex protruding muscle 3 and bump 4.

In this embodiment, the elastic pad body 1 is a circular ring, the number of the elastic blades 2 is eight, the elastic blades 2 and the elastic pad body 1 are integrally formed, and the elastic blades 2 form a tooth-shaped structure and are uniformly distributed on the periphery of the elastic pad body 1. The convex ribs 3 are distributed on adjacent surfaces of any adjacent elastic blades 2, in the embodiment, the convex ribs 3 are distributed on the elastic blades 2 along the direction parallel to the axis of the elastic cushion main body 1, and the convex points 4 are distributed on the elastic blades 2 positioned on the end face of the elastic cushion of the coupler 8. The convex ribs 3 are strip-shaped, and the salient points 4 are cylindrical. The elastic cushion is characterized in that the elastic cushion main body 1 is provided with a connecting hole 9, the connecting hole 9 is positioned in the center of the elastic cushion main body 1, and the connecting hole is a through hole.

Because electric power steering system's operating characteristics, the booster motor need frequently open and stop, opens the impact that produces in order to slow down the motor when opening, the utility model discloses increase the 8 cushion of shaft coupling of rubber material on motor output end shaft coupling 8. The contact end face of the traditional elastic cushion of the coupler 8 is a plane, and under frequent starting, due to plane contact, the elastic cushion of the coupler 8 can be impacted to be thinned, and can generate a gap with the coupler 8 in the long term, and then the coupler 8 can be impacted, so that the transmission effect is directly influenced. The utility model discloses a set up protruding muscle 3 and bump 4 on elastic blade 2, changed the contact means, become point or line contact with the face contact. Particularly, by adding the salient points 4 in the axial direction of the elastic gasket, as shown in fig. 1, the axial force generated when the worm 6 is meshed with the worm wheel 5 can promote a part of the force at the end of the worm 6 to be transmitted to the end of the motor 7 under the action of the elastic gasket, so that the transmission of the axial force has an increasing process, the motor 7 can be prevented from being impacted, and the working performance of the system is improved.

The above-mentioned embodiments are only used for explaining the present invention, but not for limiting the present invention, and any changes and substitutions made by the present invention without creative efforts fall into the protection scope of the present invention.

Claims

1. The utility model provides a coupler cushion, its characterized in that, the cushion includes the cushion main part, be equipped with a plurality of elastic blade that outwards stretch out in the cushion main part, elastic blade with cushion main part fixed connection, a plurality of elastic blade are followed cushion main part circumference interval distribution, last protruding muscle and the bump of being provided with of elastic blade.

2. The cushion for shaft couplings according to claim 1, wherein a plurality of resilient blades form a tooth-like structure on the cushion body, and the ribs are interdental ribs distributed on adjacent surfaces of any adjacent resilient blades.

3. The cushion of claim 2, wherein said ribs are distributed on said elastomeric leaves in a direction parallel to the axis of said cushion body.

4. The coupling spring pad of claim 2, wherein said raised points are distributed on said spring blades at an end face of said coupling spring pad.

5. The coupling elastomeric pad of claim 4, wherein said nubs are cylindrical.

6. The cushion for coupling according to claim 1, wherein the cushion body has a connecting hole formed therein, the connecting hole being located at a center of the cushion body.

7. The coupling cushion of claim 6 wherein said cushion body is annular in shape.

8. A coupler spring pad according to any one of claims 1 to 7, wherein eight of the spring blades are uniformly distributed around the periphery of the pad body.

9. A motor buffer system, characterized by, include the shaft coupling cushion of any claim 1 to 8, still include the motor, the motor output shaft end is equipped with the shaft coupling, be equipped with the shaft coupling cushion on the shaft coupling, the shaft coupling cushion cooperatees with the shaft coupling.