CN2688976Y

CN2688976Y - Mini-reducer

Info

Publication number: CN2688976Y
Application number: CN 200420008218
Authority: CN
Inventors: 柯雄心
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-03-07
Filing date: 2004-03-07
Publication date: 2005-03-30
Anticipated expiration: 2014-03-07

Abstract

The utility model relates to a mini-reducer. The inside of the mini-reducer is provided with an inner gear cassette mechanism which is provided with a concave column rotating disk and a convex column rotating disk. The concave column rotating disk and the convex column rotating disk cooperate to install three double tooth rollers in the middle of the inner gear cassette mechanism. An inner gear seat is arranged on a big tooth end, and an output gear shaft is arranged on a small tooth end. The inner gear cassette mechanism is sheathed in a shell. At the same time, a rear lid is directionally arranged in the inner gear seat. The rear lid and the shell are matched and fixed, and the inner gear cassette mechanism is sealed by the rear lid. A connection gear shaft is inserted into the centre hole of the rear lid, and the connection gear shaft is engaged with the three double tooth rollers. The utility model has the advantages of big speed ratio, small size and stable transmission, and can be matched with a micromotor, such as a cell phone motor, etc. to be used as micro-operation sources of some light industrial products, such as toys, body builders and health products. The mini-reducer is simple and convenient to graft with the mobile phone motor.

Description

Miniature reducer

Affiliated technical field

The utility model relates to a kind of miniature reducer, refers in particular to a kind of and the matching used miniature reducer of micro motor such as motor for cell phone.

Background technique

At present, the general volume of existing retarder is all bigger, is applicable to heavy industry.The retarder of using in light industry requires that speed ratio is big, volume is little.Some retarder, plane table thermoconductivity meter for example, though volume is little, transmission is not steady, can not satisfy usage requirement.Chinese patent once disclosed a kind of " miniature reducer " (ZL942256239, the day for announcing: June 14 nineteen ninety-five), shell is made up of external form seat and housing, employing has two transmission shafts with axle journal of equal throw of eccentric on 180 ° symmetrical position, the modified gear of two the identical moduluses and the number of teeth is installed at the axle journal place with throw of eccentric, be meshed with the internal gear of installing in the housing, modified gear is connected with driving sleeve by little axle, power is slowed down by the transmission shaft driven gear, sees off by the driving sleeve transmission.It is applicable to machine sewing machine equipment etc., but is difficult to and the supporting use of micro motor such as motor for cell phone.

Motor for cell phone generally adopts the coiling armature permanent magnet direct current motor.Along with popularizing of mobile phone, the volume of mobile phone is more and more littler, and motor for cell phone is also more and more littler.Send out as the land that micro motor Co., Ltd just can produce coiling armature permanent magnet direct current motors such as 7 millimeters of Φ 4, Φ 5, Φ 6, Φ and Φ 14, Φ 18 flat electric machines (are used for mobile phone, the beeper vibroseismic signal), but they can not be directly as the fine motion source of some light industrial goods such as toy, fitness equipment, health care product.

The model utility content

The purpose of this utility model is to provide a kind of miniature reducer, its speed ratio is big, volume is little and stable drive, with the fine motion source of the supporting use of motor for cell phone and so on micro motor as some light industrial goods such as toy, fitness equipment, health care product, and easy with the motor for cell phone grafting.

For achieving the above object, the solution that the utility model is taked is: a kind of miniature reducer, has the internal gear movement in this retarder, this internal gear movement has a recessed post rotating disk and a projection rotating disk, recessed post rotating disk and projection rotating disk cooperate three bidentate rotary roller in the middle of it, the big increment of one internal gear base device, the little increment of one output gear shaft device, this internal gear movement is inserted in the housing, a bonnet orientation is inserted the internal tooth wheel seat simultaneously, bonnet cooperates fixing and seals the internal gear movement with housing, an attachment tooth wheel shaft inserts in the bonnet center hole, this attachment tooth wheel shaft and three bidentate roller engagements.

During use, micro motor output shaft and this retarder attachment tooth wheel shaft can be directly bonding or the additional concentric cover fixing, also can adopt cassette to fix according to purposes, grafting is easy.After the micro motor grafting, micro motor can drive the transmission of internal gear movement once starting, and reaches the purpose of deceleration.Because the concentric locating of attachment tooth wheel shaft, engagement driving stability is fine.It adopts the gear transmission principle, bidentate roller, internal tooth wheel seat, output gear shaft, attachment tooth wheel shaft are provided with rationally, speed ratio is big, and volume is little, with the fine motion source of the supporting use of motor for cell phone and so on micro motor as some light industrial goods such as toy, fitness equipment, health care product.

Description of drawings

Fig. 1 is the plan view of present embodiment.

Fig. 2 is the right elevation of present embodiment.

Fig. 3 is the left view of present embodiment.

Fig. 4 is that the master of present embodiment looks fragmentary cross-sectional view.

Fig. 5 is that present embodiment combines figure with the supporting use of mobile phone φ 6 motors.

Among the figure: 1, housing, 2, bonnet, 3, output gear shaft, 4, the internal tooth wheel seat, 5, the projection rotating disk, 6, recessed post rotating disk, 7, the bidentate roller, 8, the attachment tooth wheel shaft, 9, positioning bar, 10, mobile phone φ 6 motors.

Embodiment

Below in conjunction with embodiment and accompanying drawing thereof the good effect of the utility model and generation thereof is remake description.

Referring to Fig. 1-Fig. 5, a kind of miniature reducer, has the internal gear movement in this retarder, this internal gear movement has a recessed post rotating disk 6 and a projection rotating disk 5, recessed post rotating disk 6 and 5 cooperations of projection rotating disk are installed three bidentate rollers 7 in the middle of it, the big increment of one internal tooth wheel seat, 4 devices, the little increment of one output gear shaft, 3 devices, this internal gear movement is inserted in the housing 1, a bonnet 2 orientations are inserted internal tooth wheel seat 4 simultaneously, bonnet 2 cooperates fixing and seals the internal gear movement with housing 1, an attachment tooth wheel shaft 8 inserts in bonnet 2 center holes, this attachment tooth wheel shaft 8 and three bidentate roller 7 engagements.

Referring to Fig. 1, Fig. 4 and Fig. 5, bonnet 2 promptly cooperates fixing to force the barb concave groove to be pressed into housing 1 with housing 1T type.This means of fixation, accurate positioning, easy to assembly, satisfy requirement easily with the simple grafting of micro motor.

Referring to Fig. 1 and Fig. 5, housing 1 is a cylindrical body, and its surperficial neutral position is distributed with four sections positioning bars 9, and the location is convenient, and is accurately directed, fixing strong.Housing 1 is made of plastic.

Referring to Fig. 4, attachment tooth wheel shaft 8 front ends cooperate with center hole in the output gear shaft 3, have reduced the gear amount of radially wobbling effectively, make meshed transmission gear more stable, have improved the working life of gear.

Referring to Fig. 1, Fig. 4 and Fig. 5, the external part of output gear shaft 3 is that φ 2.25 * 2.5 is cylindrical for one section, and it is wide to design actual adapted like this, has the advantage of adapted diversity and flexibility.

Present embodiment speed ratio big (1: 6), volume is little, and (φ 5.9, and is L10.8) easy with mobile phone φ 6 motor graftings, is applicable to miniature power source apparatus such as toy, fitness equipment, health care product.

Claims

1, a kind of miniature reducer, it is characterized in that: have the internal gear movement in this retarder, this internal gear movement has a recessed post rotating disk (6) and a projection rotating disk (5), recessed post rotating disk (6) and projection rotating disk (5) cooperation are installed three bidentate rollers (7) in the middle of it, one internal tooth wheel seat (4) installs big increment, one output gear shaft (3) installs little increment, this internal gear movement is inserted in the housing (1), a bonnet (2) orientation is inserted internal tooth wheel seat (4) simultaneously, bonnet (2) cooperates fixing and seals the internal gear movement with housing (1), one attachment tooth wheel shaft (8) inserts in bonnet (2) center hole, this attachment tooth wheel shaft (8) and three bidentate rollers (7) engagement.

2, a kind of miniature reducer according to claim 1 is characterized in that: bonnet (2) promptly cooperates fixing to force the barb concave groove to be pressed into housing (1) with housing (1) T type.

3, a kind of miniature reducer according to claim 1 is characterized in that: housing (1) is a cylindrical body, and its surperficial neutral position is distributed with four sections positioning bars (9).

4, a kind of miniature reducer according to claim 1 is characterized in that: attachment tooth wheel shaft (8) front end cooperates with the interior center hole of output gear shaft (3).

5, a kind of miniature reducer according to claim 1 is characterized in that: one section of the external part of output gear shaft (3) is cylindrical for φ 2.25 * 2.5.