CN203398934U

CN203398934U - Automatic control device for axial movement of wiper motor

Info

Publication number: CN203398934U
Application number: CN201320488814.5U
Authority: CN
Inventors: 张岳峰; 杨雯; 张小鸣; 张文明; 张孟荣; 王瑛; 杨林海; 谷靖; 金龙; 周波; 王洋; 张孟进
Original assignee: 张岳峰; 张孟进; 张孟荣
Priority date: 2013-08-09
Filing date: 2013-08-09
Publication date: 2014-01-15
Anticipated expiration: 2023-08-09

Abstract

The utility model relates to an automatic control device for axial movement of a wiper motor. The device includes a motor end cover and a casing. A rotor shaft is arranged in the casing. A plastic-part positioning control device is sleeved on the rotor shaft and the rotor shaft is connected to a bearing position of the end cover through the plastic-part positioning control device. The plastic-part positioning control device includes a base and a connection end provided with a through hole. A torsional spring is arranged on the connection end. Two sections of slope bosses are arranged on the base in a head-to-tail manner in a circumferential direction. The bosses become smaller in thickness when rotating forwards for 180 degrees and larger in thickness when rotating in a reversal manner for 180 degrees. The end cover at the bearing position is also arranged correspondingly to become smaller in thickness when rotating forwards for 180 degrees and larger in thickness when rotating in a reversal manner for 180 degrees. A joint for installing the torsional spring is arranged at the thickest place at a 180-degree lateral direction. The device is used in cooperation with the plastic-part positioning control device in adjustment of an axial gap of a rotor in assembly of the motor rotor. The automatic control device for the axial movement of the wiper motor is capable of eliminating different-part accumulated errors in assembly and gaps caused by mutual abrasion in compensation operation.

Description

Wiper motor axial endplay automatic control equipment

Technical field

The utility model relates to a kind of wiper motor, especially a kind of wiper motor axial endplay automatic control equipment.

Background technology

Current wiper motor rotor play in the axial direction in work all can not be effectively controlled, the gap of mutually wearing and tearing when accumulated error during assembling between each parts and running and producing can make the positive and negative bidirectional rotation of wiper motor can not be controlled at all the time in the scope of designing requirement, the wiper of wiper can not be vacillated now to the left, now to the right in controlled area charactert, therefore need to improve electric machine structure, effectively control the axial endplay of this rotor.

Utility model content

The technical problems to be solved in the utility model is: in order to solve the uncontrollable problem of existing wiper motor rotor axial play in above-mentioned background technology, provide a kind of wiper motor axial endplay automatic control equipment.

The technical scheme that the utility model adopts is: a kind of wiper motor axial endplay automatic control equipment, comprise electric motor end cap, casing, in casing, be provided with armature spindle, on described armature spindle, cover has plastic position control device, and determine by this plastic the position of bearings that control device is connected to end cap, described plastic position control device comprises that base and offers the link of through hole, on link, be provided with torsion spring, on described base, along the circumferential direction join end to end and be provided with two sections of domatic boss, boss thickness 180 degree are rotated in the forward by thick to thin, reverse 180 degree are thick by being thinned to, described end cap Shang position of bearings is also arranged to 180 corresponding degree and is rotated in the forward by thick to thin, reverse 180 degree are thick by being thinned to, and in the horizontal thickness of 180 degree, have an interface that torsion spring is installed, this device coordinates plastic automatic positioning equipment to regulate the end play of rotor when rotor assembles.After coordinating, this device make it along regulating gap by thick to thin direction according to the stressed opposite direction twisting plastic control device of torsion spring, the torsion spring that assembles initial plastic thickness catches on admires into the thickest opening part of end cap, now twisting plastic has and thickly to thin direction, twists to casing end face and end cap end contact and coincide, in this process, torsion spring is thick along with plastic has rotates and the power of tightening up gradually torsion spring to thin direction, simultaneously in assembling and use procedure under the effect at torsion spring, plastic has thin mutually wearing and tearing when the accumulated error between each parts and compensation running while moving to eliminate assembling to thick direction and the gap that produces, this device can regulate displacement automatically, thereby can automatically control all the time the end play of rotor.

The beneficial effects of the utility model are: wiper motor axial endplay automatic control equipment of the present utility model has overcome the problem that current wiper motor can not be controlled rotor axial play, the gap of mutually wearing and tearing when the accumulated error of each parts and compensation are turned round in the time of can automatically eliminating assembling and producing, this device can regulate displacement automatically, thereby can automatically control all the time the end play of rotor.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is further illustrated.

Fig. 1 is the structural representation of the plastic position control device in the utility model;

Fig. 2 is the stereogram of the plastic position control device in the utility model;

Fig. 3 is the structural representation of electric motor end cap in the utility model

In figure: 1. end cap, 2. base, 3. link, 4. torsion spring, 5. boss, 6. opening.

Embodiment

With preferred embodiment, the utility model is described in further detail by reference to the accompanying drawings now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model is only described in a schematic way, so it only show the formation relevant with the utility model.

As Fig. 1, Fig. 2, the embodiment of a kind of wiper motor axial endplay of the utility model shown in Fig. 3 automatic control equipment, comprise electric motor end cap 1, casing, in casing, be provided with armature spindle, on described armature spindle, cover has plastic position control device, and determine by this plastic the position of bearings that control device is connected to end cap, described plastic position control device comprises that base 2 and offers the link 3 of through hole, on link 3, be provided with torsion spring 4, on described base 2, along the circumferential direction join end to end and be provided with two sections of domatic boss 5, boss 5 thickness 180 degree are rotated in the forward by thick to thin, reverse 180 degree are thick by being thinned to, described end cap 1 Shang position of bearings is also arranged to 180 corresponding degree and is rotated in the forward by thick to thin, reverse 180 degree are thick by being thinned to, and in the horizontal thickness of 180 degree, have an interface 6 that torsion spring 4 is installed, this device coordinates plastic automatic positioning equipment to regulate the end play of rotor when rotor assembles.After coordinating, this device make it along regulating gap by thick to thin direction according to the stressed opposite direction twisting plastic control device of torsion spring, the torsion spring that assembles initial plastic thickness catches on admires into the thickest opening part of end cap, now twisting plastic has and thickly to thin direction, twists to casing end face and end cap end contact and coincide, in this process, torsion spring is thick along with plastic has rotates and the power of tightening up gradually torsion spring to thin direction, simultaneously in assembling and use procedure under the effect at torsion spring, plastic has thin mutually wearing and tearing when the accumulated error between each parts and compensation running while moving to eliminate assembling to thick direction and the gap that produces, this device can regulate displacement automatically, thereby can automatically control all the time the end play of rotor.

What in above specification, describe is embodiment of the present utility model, various not illustrating is construed as limiting flesh and blood of the present utility model, person of an ordinary skill in the technical field read after specification can to before described embodiment make an amendment or be out of shape, and do not deviate from essence and the scope of utility model.

Claims

1. a wiper motor axial endplay automatic control equipment, comprise electric motor end cap (1), casing, in casing, be provided with armature spindle, it is characterized in that: on described armature spindle, cover has plastic axial location control device, and by this plastic axial location control device, be connected to the position of bearings of end cap, described plastic axial location control device comprises that base (2) and offers the link (3) of through hole, on link (3), be provided with torsion spring (4), on described base (2), along the circumferential direction join end to end and be provided with two sections of domatic boss (5), boss (5) height 180 degree are rotated in the forward by thick to thin, reverse 180 degree are thick by being thinned to, described end cap (1) Shang position of bearings is also arranged to 180 corresponding degree and is rotated in the forward by thick to thin, reverse 180 degree are thick by being thinned to, and in the horizontal thickness of 180 degree, have an opening (6) that torsion spring (4) is installed, this device coordinates plastic automatic positioning equipment to regulate the end play of rotor when rotor assembles.