CN102545465A

CN102545465A - Car window motor transmission device

Info

Publication number: CN102545465A
Application number: CN2010106109495A
Authority: CN
Inventors: 屠岳明
Original assignee: NINGBO HENGTE AUTOMOBILE PARTS CO Ltd
Current assignee: NINGBO HENGTE AUTOMOBILE PARTS CO Ltd
Priority date: 2010-12-16
Filing date: 2010-12-16
Publication date: 2012-07-04

Abstract

The invention discloses a car window motor transmission device which is characterized in that a rotating shaft in a rotor of a motor is detachably connected with a first transmission part of a collet connector, and a plurality of collets are distributed along the circumferential surface of the rear part of the first transmission part; correspondingly, the front end of a rotating shaft of a worm rod is provided with a second transmission part of the collet connector, and a plurality of collect holders for inserting and connecting the collets are distributed along the circumferential direction of the front end part of the second transmission part; a roller ring is sleeved outside the collet connector and provided with a plurality of roller supports along the inner circumferential surface of an inner hole per se, and built-in cavities in the roller supports are communicated with the outer circumferential surface and the inner hole of the roller ring and provided with rollers capable of moving from the inside to the outside along a radius direction; furthermore, the second transmission part of the collet connector is provided with matching surfaces which are in contact fitting with or separated from the inner sides of the rollers among the collet holders; and finally, a bearing sleeve is sleeved outside the roller ring. The car window motor transmission device is compact in structure, good in self-locking effect, convenient for the separation and assembly of a motor and a retarding mechanism and capable of avoiding the problem of poor concentricity caused by easily bending an overlong shaft in the assembly process.

Description

The Car window electric machine transmission device

Technical field

The present invention relates to a kind of Car window electric machine transmission mechanism.

Background technology

Rotor and worm drive shaft in the tradition armature all are same axises, and above-mentioned way is very high to this requirement of beating, processed complex, and also the long more perpendicularity of axle ensures that with crooked just being difficult to motor uses a period of time axle to be easy to bending, causes motor oscillating.

Like the patent No. is the electric rotor that the Chinese patent (notification number is CN2783616) of CN200520011155.1 discloses a kind of electric tool; Comprise coil windings and commutator; It is characterized in that: the syndeton of described commutator and described coil windings is: on described commutator, the end of commutator segment has holding tank, is welded by the end clamping of described holding tank with the tap of described coil windings; The electric rotor of this utility model electric tool is suitable for a large amount of productions; Its structure, making, assembling are quick and convenient, but its rotating shaft is whole one, so there is aforesaid defective.

Similar problem also is present in the Chinese patent that the patent No. is CN200520011746.9 (notification number is CN2783609), and it provides a kind of electric rotor of improved electric tool; Comprise main shaft and be contained in the iron core on the main shaft; It is characterized in that: on the outer surface of described iron core, have the balance groove.On described main shaft, impeller is housed.

And self-locking also is to shake basic demand in the window electromechanics trade for shaking important indicator in the window motor performance.Self-locking is cut off the power supply of motor for when glass lifting arrives certain altitude, pushes glass with the power of 50Kg, and glass can not move downslide, plays certain self-locking effect.Traditional window motor transmission mechanism that shakes adopts the worm and gear transmission; When motor under out-of-work situation; External force acts on worm gear when passing to worm shaft again, and just there is self-locking in itself, but their self-locking effects are bad; The someone has done some improvement for this reason; Like the patent No. is that 200920187735.4 Chinese patent " Car window electric machine " discloses a kind of vehicle window transmission mechanism, it comprise end sealing and the open casing of the other end, be installed in the casing open end a carbon brush holder, be positioned at casing open end one side and be releasably attached to the gear box on the casing, this gear box comprises a Worm-gear assembly, be positioned at the support of bearing of casing cooperation place and be positioned at the rolling bearing of the support of bearing; It further comprises between casing open end and rolling bearing and the fixture of the said rolling bearing of axial restraint; Adopt the technical scheme of this utility model, can guarantee the normal operation and the auto-lock function of motor, improve the functional reliability of Car window electric machine.But it mainly relies on worm and gear to realize self-locking, so the self-locking effect also needs further to improve, in addition, structure is also compact inadequately, is unfavorable for installing and using.

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of compact conformation, self-locking effective to the above-mentioned state of the art; And be convenient to electric motor and separate assembling with reducing gear, avoided in the assembling process because of the bad problem of the long flexible concentricity that causes of axle.

The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of Car window electric machine transmission device; It includes rotor, worm screw rotation axis, the worm gear of motor; It is characterized in that: the rotor shaft of described motor detachably connects first driving member of claw coupling; The rear portion of first driving member is distributed with a plurality of claws along periphery, and accordingly, the front end of worm screw rotation axis is provided with second driving member of claw coupling; The leading section of second driving member a plurality of pawl seats that along the circumferential direction distributed supply claw to insert and connect;

And the claw coupling outside is with the roller bearing ring, and the roller bearing ring is provided with a plurality of roller shaft seats along the inner peripheral surface of own endoporus, and the built-in chamber in the roller shaft seat is communicated with the outer peripheral face and the endoporus of roller bearing ring, and being equipped with in the built-in chamber can be along mobile roller bearing inside and outside the radial direction;

Further, second driving member of claw coupling is provided with inboard conflict of mating surface and roller bearing and cooperates or disengaging between the pawl seat;

At last, the roller bearing ring is with bearing holder (housing, cover) outward again, and under worm screw rotation axis backward rotation state, roller bearing is promoted outer being moved by the mating surface on the pawl seat, keeps exposing the trend of roller bearing ring outer peripheral face, realizes reverse self-locking with the inner peripheral surface tensioner of bearing holder (housing, cover).

As improvement, described claw is to be convexly equipped with on the circumferential surface of first driving member, and accordingly, the roller bearing ring is having the cooperation draw-in groove between roller shaft seat on the inner peripheral surface.

Preferably, described claw coupling adopts the three-jaw connector, adopts three claws, and accordingly, the pawl seat also is three, and roller bearing and roller shaft seat also are three, and the even distributed and arranged of concentric shafts circumference.

Further improve, described detachably the connection adopted the irregularly-shaped hole socket connection.Described irregularly-shaped hole is mounting hole, triangle hole, quadrilateral hole, five lateral opening or hexagonal holes.

At last, described draw-in groove adopts the circular arc draw-in groove.

Compared with prior art, the invention has the advantages that: the armature that tradition is shaken the window motor is divided into two, and assembles easier; Divide the work refinement more, can accomplish that electric motor separates assembling with reducing gear, avoided bad in the assembling process because of the long flexible concentricity that causes of axle; Cause problems such as motor is suppressed extremely, abnormal sound, and long service life, and increased the self-locking mechanism of compact conformation; Simple in structure; Assembling easily, in conjunction with the self-locking property of worm and gear and the unidirectional self-lock between roller bearing and the bearing holder (housing, cover), the self-locking effect is better.

Description of drawings

Fig. 1 is the explosive view of Car window electric machine transmission device;

Fig. 2 is the cross-sectional view of Car window electric machine transmission device;

Fig. 3 is roller bearing ring and roller bearing three-dimensional structure diagram;

Fig. 4 is the three-dimensional structure diagram of roller bearing ring and three-pawl type connector.

Embodiment

Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.

Like Fig. 1-4 signal, a kind of Car window electric machine transmission device, it includes the critical piece such as rotor 1, worm screw rotation axis 2, worm gear, three-pawl type connector 3, roller bearing ring 4, bearing holder (housing, cover) 5 of motor; Wherein three-pawl type connector 3 comprises that first driving member 3.1 of involutory inserting type connection and the front portion of second driving member, 3.2, the first driving members 3.1 have special-shaped jack 3.1a, and the shape of special-shaped jack can adopt mounting hole, triangle hole, quadrilateral hole or the like; Present embodiment adopts mounting hole, and the rotating shaft 1a of special-shaped jack and motor internal rotor 1 is mapped and is plugged on together, realizes that removable driving connects; The rear portion of first driving member 3.1 is convexly equipped with equably along periphery and is distributed with three claw 3.1b, and accordingly, the front end of worm screw rotation axis 2 is provided with second driving member 3.2 of three-pawl type connector; The leading section of second driving member 3.2 three the pawl seat 3.2a that along the circumferential direction distributed equably; Supply claw 3.1b to insert and connect, the rear end of second driving member 3.2 and worm screw rotation axis 2 link into an integrated entity, and worm screw rotation axis 2 is gone back and the worm gear engagement; The rotation of the rotor 1 of motor drives worm screw rotation axis 2 and worm gear rotation through three-pawl type connector 3 like this; And the armature that tradition is shaken the window motor is divided into two, make assembling easier, divide the work refinement more; Can accomplish that electric motor separates assembling with reducing gear; Avoided bad in the assembling process, caused problems such as motor is suppressed extremely, abnormal sound because of the long flexible concentricity that causes of axle, and long service life.

Further improve, in the Car window electric machine transmission mechanism, also increased self-locking mechanism, be with roller bearing ring 4 like outside at three-pawl type connector 3; Roller bearing ring 4 is provided with three roller shaft seats 4.1 equably along the inner peripheral surface of own endoporus, and built-in chamber 4.2 is arranged in the roller shaft seat 4.1, is communicated with the outer peripheral face of roller bearing ring 4 outward; The interior endoporus that is communicated with roller bearing ring 4 is equipped with roller bearing 6 separately in the built-in chamber 4.1, roller bearing 6 can move inside and outside radial direction in the built-in chamber 4.2 of oneself; And, between roller shaft seat 4.1, be provided with circular arc draw-in groove 4.3, accordingly; Second driving member 3.2 of three-pawl type connector 3 is provided with mating surface 3.2b between pawl seat 3.2a, can conflict with roller bearing 6 inboard realizations to cooperate or disengaging, and present embodiment has adopted simple plane; Be with a bearing holder (housing, cover) 5 again outside the roller bearing ring 4, make bearing holder (housing, cover) 5, roller bearing ring 4, claw 3.1b and pawl seat 3.2a, roller shaft seat 4.1, roller bearing 6 concentric settings, like this; Under worm screw rotation axis 2 backward rotation states, second rotating part 3.2 is counter-rotating thereupon also, makes roller bearing 6 promoted the back by the mating surface 3.2b on the pawl seat and outwards moves naturally; Keep exposing roller bearing ring 4 outer peripheral face trend; Can with the inner peripheral surface tensioner of bearing holder (housing, cover) 5 because 3.2 pairs of roller bearing rings 4 of second driving member do not have the effect of power, cause roller bearing ring 4 can't drive roller bearing 6 and rotate the parcel that breaks away from bearing holder (housing, cover)s 5; Form roller bearing 6 holdings between second driving member 3.2 and bearing holder (housing, cover) 5; Cause the power of worm screw rotation axis 2 to pass to first driving member 3.1, form locking phenomenon, realize reverse self-locking through second driving member 3.2.

Claims

1. Car window electric machine transmission device; Rotor, worm screw rotation axis, worm gear that it includes motor is characterized in that: the rotor shaft of described motor detachably connects first driving member of claw coupling, and the rear portion of first driving member is distributed with a plurality of claws along periphery; Accordingly; The front end of worm screw rotation axis is provided with second driving member of claw coupling, and the leading section of second driving member a plurality of pawl seats that along the circumferential direction distributed supply claw to insert and connect;

2. Car window electric machine transmission device according to claim 1 is characterized in that described claw is to be convexly equipped with on the circumferential surface of first driving member, and accordingly, the roller bearing ring is having the cooperation draw-in groove between roller shaft seat on the inner peripheral surface.

3. the Car window electric machine transmission device of stating according to claim 2 is characterized in that described claw coupling adopts the three-jaw connector, adopts three claws, and accordingly, the pawl seat also is three, and roller bearing and roller shaft seat also are three, and the even distributed and arranged of concentric shafts circumference.

4. according to the Car window electric machine transmission device of claim 3, it is characterized in that described detachably the connection adopting the irregularly-shaped hole socket connection.

5. according to claim 4 Car window electric machine transmission device, it is characterized in that described irregularly-shaped hole is mounting hole, triangle hole, quadrilateral hole, five lateral opening or hexagonal holes.

6. according to claim 2 window transmission gear for electric motor, it is characterized in that described draw-in groove adopts the circular arc draw-in groove.