CN101205677A

CN101205677A - Decelerating clutch for full-automatic washing machine

Info

Publication number: CN101205677A
Application number: CNA2006101613145A
Authority: CN
Inventors: 陈伟农; 孙建明
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-12-18
Filing date: 2006-12-18
Publication date: 2008-06-25

Abstract

The invention relates to a decelerating clutch for a full automatic washing machine which has smooth transmission and low production cost. The invention comprises an input shaft and an output shaft; the outer part of the output shaft is sleeved with a dehydration shaft; the input shaft is connected with the output shaft through a gear structure of the inside of a brake pulley; the input shaft is arranged on the position of the outer part of the brake pulley which is sleeved with a clutch sleeve; the outer part of the combined part between the input shaft and the lower end of the clutch sleeve is sleeved with a belt pulley; the outer part of the combined part between the shell of the brake pulley and the clutch sleeve are sleeved with a clutch spring and a ratchet wheel in turn from inside to outside; the outer part of the brake pulley is a shell component; the invention is characterized in that an upper bracket of the gear structure is connected with the dehydration shaft through a wheel train structure.

Description

A kind of decelerating clutch for full-automatic washing machine

(1) technical field

The present invention relates to the Clutch Technology field, be specially decelerating clutch for full-automatic washing machine.

(2) background technology

Domestic market its possible several structures of employed decelerating clutch for full-automatic washing machine are to disclose in 200520069013.0 in the patent No. at present.What wherein structure was optimized is that power shaft, output shaft connect by the gear structure of braked wheel inside, and the upper bracket of gear structure is connected with dehydrating shaft by oscillating tooth, permanent tooth mechanism.The planetary gear speed-reduction in the employing gear structure and the combination of Oscillating Tooth Gear Reducer, when washing machine washs, realize the output rotation of impeller axle by planetary gear, realize the output rotation of dehydration barrel by Oscillating Tooth Gear Reducer, the two realizes the constant rotational speed ratio, this structure is compared with other several clutch forms, its compact conformation, and the dehydration barrel rotating speed can be lower; Because of adopting the contact of rolling between the part of power transmission mutually, power consumption is little again; But the shortcoming of this structure is exactly: to the required precision height of oscillating tooth, production cost is also high comparatively speaking.

(3) summary of the invention

The weak point of the speed-reducing clutch of using at automatic washing machine the invention provides another speed-reducing clutch of use in washing machine, and its stable drive and production cost are lower.

Its technical scheme is such: it comprises power shaft, output shaft, the outer cover of described output shaft is equipped with dehydrating shaft, described power shaft, output shaft connects by the gear structure of braked wheel inside, the position that described power shaft is positioned at described braked wheel outside is set with clutch cover, the outer cover of the binding site of the lower end of described power shaft and described clutch cover is equipped with belt wheel, junction at the shell and the described clutch cover of described braked wheel, both outsides are set with clutch spring and ratchet from inside to outside successively, the outside of described braked wheel is a casing assembly, it is characterized in that: the upper bracket of described gear structure is connected with dehydrating shaft by wheel train structure.

It is further characterized in that: described gear structure comprises planetary gear, described planetary gear respectively with input shaft gear that is set in described power shaft upper end and the internal gear engagement that is positioned at the described planetary gear outside, described planetary axle is installed on tooth rest upper bracket and lower carriage, the spline engagement of the internal spline of the upper bracket of described tooth rest and described output shaft lower end; Described wheel train structure comprises breast wheel, described breast wheel is installed on the fixed axis gear gripper shoe, the inwall interference fit of described gripper shoe and described braked wheel shell, described breast wheel meshes with the centre wheel that is installed on described upper bracket, internal gear simultaneously, the end face of internal gear sidepiece stretch out be flange, described flange sleeve be loaded on described dehydrating shaft and with the dehydrating shaft interference fit; The outer cover of described flange is equipped with bearing; Described breast wheel has 2,3,4 or 5; The shell of described braked wheel comprises the straight barrel type gear-box, the upper end of described straight barrel type gear-box and the bearing block of described bearing fasten, the lower end of described straight barrel type gear-box and clutch shaft fasten, described clutch shaft is set in power shaft, be provided with the clutch axle sleeve between described clutch shaft and the described power shaft, the lower end surface of described clutch shaft, clutch axle sleeve contacts with described clutch cover.

In the said structure of the present invention, replace the driving of oscillating tooth structure realization with wheel train structure to dehydrating shaft, and breast wheel meshes with upper bracket, internal gear simultaneously, the required precision of oscillating tooth train can be hanged down relatively, can reduce production costs thus, thereby avoided existing structure, the shortcoming that production cost is higher.

(4) description of drawings

Fig. 1 is the cutaway view of front view of the present invention.

(5) specific embodiment

See Fig. 1, the present invention includes power shaft 5, output shaft 13, the outer cover of output shaft 13 is equipped with dehydrating shaft 15, power shaft 5, output shaft 13 connect by the gear structure of braked wheel inside, gear structure comprises planetary gear 6, planetary gear 6 respectively with input shaft gear that is set in power shaft 5 upper ends and the internal gear engagement that is positioned at the planetary gear outside, planetary axle is installed on tooth rest upper bracket 7 and lower carriage, the spline engagement of the internal spline of the upper bracket 7 of tooth rest and output shaft 13 lower ends; The position that power shaft 5 is positioned at the braked wheel outside is set with clutch cover 3, power shaft 5 is equipped with belt wheel 2 with the outer cover of the binding site of the lower end of clutch cover 3, the junction of the shell of braked wheel and clutch cover 3 is set with clutch spring 20 and ratchet 21 from inside to outside successively, the outside of braked wheel is a casing assembly 16, and the upper bracket 7 of gear structure is connected with dehydrating shaft 15 by wheel train structure.Wheel train structure comprises breast wheel 9, breast wheel 9 is installed on fixed axis gear gripper shoe 8, the inwall interference fit of gripper shoe 8 and braked wheel hub, breast wheel 9 simultaneously with upper bracket 7 on centre wheel, internal gear 10 engagements, the end face of internal gear 10 sidepieces stretch out be flange, flange sleeve be loaded on dehydrating shaft 15 and with dehydrating shaft 15 interference fit; The outer cover of flange is equipped with bearing 22; Breast wheel 9 has 2,3,4 or 5, and concrete quantity is decided on the size of clutch; The shell of braked wheel comprises straight barrel type gear-box 17, bearing block 11 fastenings of the upper end of straight barrel type gear-box 17 and bearing 22, lower end and clutch shaft 19 fasten, clutch shaft 19 is set in power shaft 5, be provided with clutch axle sleeve 4 between clutch shaft 19 and the power shaft 5, the lower end surface of clutch shaft 5, clutch axle sleeve 4 contacts with clutch cover 3, and 1 is that belt pulley spiral shell, 12 is that cover plate main part, 14 is that dehydration axle bush, 18 is the clutch arm among Fig. 1.

Describe washing machine below in conjunction with Fig. 1 and be in the course of action of washing during operating mode: see Fig. 1, belt pulley 2 drives power shaft 5 and rotates, input shaft gear drives planetary gear 6 and rotates, the rotating shaft of planetary gear 6 drives upper bracket 7, upper bracket 7 drives output shaft 13 by its internal spline on the one hand and rotates, upper bracket 7 drives breast wheel 9 rotations on the other hand, breast wheel 9 drives internal gear 10 runnings, internal gear 10 drives dehydrating shaft 15 and rotates, output shaft 13 drives impeller, dehydrating shaft 15 drives dehydration barrel. and in the said structure of the present invention, the velocity ratio between output shaft 13 and the dehydrating shaft 15 is determined by the gear ratio of the centre wheel on internal gear 10 and the upper bracket 7.When washing machine is in dehydration condition, clutch spring 20 is held tightly, clutch arm 18 releasing of brake bands, power shaft 5 is integral with braked wheel, fixedly connected with braked wheel owing to gripper shoe 8 again, rotate so drive fixed axis gear breast wheel 9 constant speed, internal gear 10 revolved round the sun together with breast wheel 9 and did not have rotation this moment, thereby realized that the dehydrating shaft and the high speed dewatering of the same rotating speed of impeller axle turn round.

Claims

1. decelerating clutch for full-automatic washing machine, it comprises power shaft, output shaft, the outer cover of described output shaft is equipped with dehydrating shaft, described power shaft, output shaft connects by the gear structure of braked wheel inside, the position that described power shaft is positioned at described braked wheel outside is set with clutch cover, the outer cover of the binding site of the lower end of described power shaft and described clutch cover is equipped with belt wheel, junction at the shell and the described clutch cover of described braked wheel, both outsides are set with clutch spring and ratchet from inside to outside successively, the outside of described braked wheel is a casing assembly, it is characterized in that: the upper bracket of described gear structure is connected with dehydrating shaft by wheel train structure.

2. according to the described a kind of decelerating clutch for full-automatic washing machine of claim 1, it is characterized in that: described gear structure comprises planetary gear, described planetary gear respectively with input shaft gear that is set in described power shaft upper end and the internal gear engagement that is positioned at the described planetary gear outside, described planetary axle is installed on tooth rest upper bracket and lower carriage, the internal spline of the upper bracket of described tooth rest and the spline engagement that is set in described output shaft lower end.

3. according to the described a kind of decelerating clutch for full-automatic washing machine of claim 1, it is characterized in that: described wheel train structure comprises breast wheel, described breast wheel is installed on the fixed axis gear gripper shoe, the inwall interference fit of described gripper shoe and described braked wheel shell, described breast wheel meshes with the centre wheel that is installed on described upper bracket, internal gear simultaneously, the end face of internal gear sidepiece stretches out and is flange, described flange sleeve be loaded on described dehydrating shaft and with the dehydrating shaft interference fit, the outer cover of described flange is equipped with bearing.

4. according to the described a kind of decelerating clutch for full-automatic washing machine of claim 3, it is characterized in that: described breast wheel has 2,3,4 or 5.

5. according to the described a kind of decelerating clutch for full-automatic washing machine of claim 3, it is characterized in that: the shell of described braked wheel comprises the straight barrel type gear-box, the upper end of described straight barrel type gear-box and the bearing block of described bearing fasten, the lower end of described straight barrel type gear-box and clutch shaft fasten, described clutch shaft is set in power shaft, be provided with the clutch axle sleeve between described clutch shaft and the described power shaft, the lower end surface of described clutch shaft, clutch axle sleeve contacts with described clutch cover.