CN105734900B - Washing machine speed reduction clutch and washing machine - Google Patents

Abstract

The invention provides a washing machine speed reducing clutch, which comprises a speed reducing device, wherein the speed reducing device comprises a brake wheel and a wheel train arranged in the brake wheel, the brake wheel comprises a brake wheel cover and a brake wheel body with an inner cavity, the upper end of the brake wheel body is rigidly connected with a dewatering shaft, the lower end of the brake wheel body is provided with an opening, the brake wheel cover is fixedly connected with the lower end of the brake wheel body, the opening at the lower end of the brake wheel body is covered with the brake wheel cover to form a closed inner cavity, and the wheel train is arranged in the closed inner cavity between the brake wheel body and the brake wheel cover. The dehydration shaft is fixedly connected with the brake wheel, the dehydration shaft is fixedly connected with the brake wheel body through the spline, the brake wheel body is fixedly connected with the brake wheel cover in a riveting mode, the assembly mode is simple, the connection is more stable and reliable after the connection is fixed, and the transmission stability between the brake wheel and the dehydration shaft is ensured.

Description

Washing machine speed reduction clutch and washing machine

Technical Field

The invention relates to the technical field of washing machines, in particular to a washing machine speed reduction clutch and a washing machine.

Background

The double-power washing machine is a new pulsator washing machine, and is mainly characterized by that when it is used for washing, the inner drum and pulsator of the washing machine can be rotated in opposite directions and at different rotating speeds so as to make the washed matter receive the reverse rotating force of inner drum and pulsator in the course of washing, and can implement the action of rubbing washing to the washed matter, and its washing cleanliness is higher.

The reverse rotation of the inner barrel and the impeller of the washing machine is realized mainly by virtue of a speed reduction clutch of the washing machine, and the prior speed reduction clutch of the bidirectional drive of the washing machine generally adopts a planetary fixed-axis gear train transmission structure, a gear transmission mechanism and a movable-tooth transmission mechanism.

The Chinese patent with application number 03239381.4 is mainly composed of an input shaft, an output shaft sleeve, an input shaft sleeve, a brake wheel and a double-drive gear mechanism arranged in the brake wheel, wherein the input shaft, the output shaft sleeve and the output shaft are respectively connected with the double-drive gear mechanism, and a clutch device is arranged between the brake wheel and the output shaft sleeve. During washing working condition, the output shaft and the output shaft sleeve are mutually reversed, are driven in proportion in two directions, swing repeatedly and swing relatively strongly. When in dehydration working condition, the output shaft and the output shaft sleeve can be automatically combined through the locking function of the clutch device, and simultaneously, high-speed unidirectional continuous rotation and centrifugal dehydration are performed.

However, in the washing process of the washing machine with the speed reducing clutch, the inner barrel and the impeller frequently rotate reversely, and the inertia moment generated by the inner barrel directly acts on the overrunning clutch, so that the quality problem often occurs due to the bad overrunning clutch along with the increase of the washing capacity of the washing machine. Reaction force is often generated on the unidirectional bearing at the lower part in the rotating process of the inner barrel, the unidirectional bearing is easy to fail, and meanwhile, the clutch spring is tightly held when washing, so that the clutch spring is damaged. In addition, since the dehydrating shaft is separated from the brake wheel and connected with the speed reducing clutch, the inner barrel has slight swing in the dehydrating state and directly acts on the dehydrating shaft, and the bearing support of the dehydrating shaft is eccentric, so that one end of the dehydrating shaft is subjected to larger torque, and meanwhile, the vibration of the washing machine is increased to generate noise.

In view of this, the present invention has been made.

Disclosure of Invention

In order to solve the problems, the invention provides a washing machine speed reduction clutch, which concretely adopts the following technical scheme:

the utility model provides a washing machine speed reduction clutch, includes decelerator, decelerator includes brake wheel and the train that sets up in the brake wheel, the brake wheel include brake wheel lid and the brake wheel body that has inside cavity, the upper end and the dehydration axle rigid connection of brake wheel body, the opening is seted up to the lower extreme of brake wheel body, brake wheel lid fixed connection is in the lower extreme of brake wheel body and is covered and form confined inside cavity on the opening of the lower extreme of brake wheel body, the train set up in confined inside cavity between brake wheel body and the brake wheel lid.

Further, the brake wheel cover is of a disc-shaped structure, an opening is formed in the center of the disc-shaped structure, the opening of the brake wheel cover is sleeved on an input shaft sleeve of the washing machine, and the brake wheel cover and the opening of the brake wheel body are fixed in a riveting mode.

Further, a riveting part is arranged at the opening of the brake wheel body, and the thickness of the inner wall of the riveting part is smaller than that of the circumferential side wall of the brake wheel body, so that a step structure for limiting the brake wheel cover is formed between the inner wall of the riveting part and the inner wall of the brake wheel body; the axial height of the riveting part is larger than the thickness of the brake wheel cover.

Further, the opening of the brake wheel cover extends outwards along the axial direction for a certain distance to form a bearing installation part, and at least two sets of rolling bearings are arranged between the bearing installation part of the brake wheel cover and the input shaft sleeve.

Further, the speed reducing device comprises a shell, the brake wheel is arranged in the shell, and at least one set of rolling bearing is arranged between the bearing mounting part of the brake wheel cover and the lower end of the shell.

Further, the open end of the brake wheel body is turned outwards to form a brake wheel body connecting part, and the brake wheel cover is connected with the brake wheel body connecting part through threads.

Further, the brake wheel body is fixedly connected with the brake wheel cover through a spline, spline teeth are arranged on the circumferential side wall of the brake wheel cover, and spline tooth grooves for assembling the spline teeth of the brake wheel cover are formed in the inner wall of the opening of the brake wheel body.

Further, the gear train comprises a double-layer planetary gear train, a lower-layer gear train of the double-layer planetary gear train comprises a lower-layer central gear, a lower-layer planetary gear meshed with the lower-layer central gear, a lower-layer planetary gear carrier and a lower-layer internal gear ring, the lower-layer central gear is fixedly connected with an input shaft, the lower-layer planetary gear is meshed with the lower-layer internal gear ring, and the lower part of the lower-layer internal gear ring is fixedly connected with an input shaft sleeve; the upper layer gear train of the double-layer planetary gear train comprises an upper layer central gear, an upper layer planetary gear engaged with the upper layer central gear, an upper layer planetary gear carrier and an upper layer internal gear ring, the upper layer central gear is connected with the output shaft, the upper layer planetary gear is engaged with the upper layer internal gear ring, and the upper layer internal gear ring is fixedly connected with the brake wheel through a spline; the center position of the lower layer planet carrier is fixedly connected with an upper layer sun gear, and the upper layer planet carrier is fixedly connected with the lower layer inner gear ring through a spline; spline teeth are respectively arranged on the inner side wall of the brake wheel corresponding to the gear train of the upper layer and the circumferential outer wall of the gear ring in the upper layer, and a gap is reserved between the gear train of the lower layer and the gear ring in the lower layer on the inner side wall of the brake wheel.

Further, still include clutch, clutch include clutch cover and the shift fork of drive clutch cover, clutch cover and input axle sleeve fixed connection just can realize dehydration and washing along the axial slip of input axle sleeve, clutch cover is located the cavity of the stator of direct drive motor, shift fork one end is located the cavity of stator and contacts with clutch cover and stir clutch cover axial motion, the other end is located the cavity outside of stator and connect the drive arrangement who is used for driving shift fork motion, set up a buffer structure between drive arrangement and the shift fork, buffer structure is an elastic component, the elastic component is compressed or tensile required power is greater than the required power of stirring clutch cover.

Further, the direct-drive motor comprises a rotor and a stator arranged in the rotor, a cavity is formed in the stator, a clutch shaft sleeve of a washing machine speed reduction clutch is arranged in the cavity of the stator, the clutch shaft sleeve slides upwards to be meshed with the stator to realize a washing program, and the clutch shaft sleeve slides downwards to be meshed with the rotor to realize a dehydration program; the stator is provided with a stator meshing part which is used for meshing with the clutch shaft sleeve and fixing the clutch shaft sleeve.

The invention also provides a washing machine with the washing machine decelerating clutch.

The dehydration shaft is fixedly connected with the brake wheel, the dehydration shaft is fixedly connected with the brake wheel body through the spline, the brake wheel body is fixedly connected with the brake wheel cover in a riveting mode, the assembly mode is simple, the connection is more stable and reliable after the connection is fixed, and the transmission stability between the brake wheel and the dehydration shaft is ensured.

The dehydration shaft is fixedly connected with the brake wheel, and the upper end and the lower end of the brake wheel are respectively provided with the rolling bearings, so that the dehydration shaft can be better supported, the inner barrel is prevented from shaking in the dehydration process, and meanwhile, the damage to the speed reduction clutch caused by shaking of the inner barrel is reduced.

Drawings

FIG. 1 is a cross-sectional view of a washing process according to a first embodiment of the present invention;

FIG. 2 is a cross-sectional view of a dewatering process according to a first embodiment of the present invention;

FIG. 3 is an exploded view of a first embodiment of the present invention;

FIG. 4 is a schematic perspective view showing the assembly relationship of the upper wheel system according to the first embodiment of the present invention;

FIG. 5 is a schematic perspective view showing the assembly relationship between the upper wheel system and the brake wheel according to the first embodiment of the present invention;

FIG. 6 is a schematic perspective view showing the assembly relationship of the lower gear train according to the first embodiment of the present invention;

FIG. 7 is a schematic perspective view showing the assembly relationship between the lower gear train and the input shaft sleeve according to the first embodiment of the present invention;

FIG. 8 is an exploded view of a second embodiment of the present invention;

FIG. 9 is a schematic perspective view of a fourth dewatering shaft according to an embodiment of the present invention;

FIG. 10 is a schematic perspective view of a fourth brake wheel according to an embodiment of the present invention;

FIG. 11 is an exploded view of an assembly of a brake wheel and a dewatering shaft according to a fourth embodiment of the present invention;

fig. 12 is a schematic perspective view of a direct drive motor according to a fifth embodiment of the present invention;

fig. 13 is an exploded view of a direct drive motor according to a fifth embodiment of the present invention;

FIG. 14 is a schematic view of another construction of a fifth stator according to the embodiment of the present invention;

FIG. 15 is a schematic diagram of a rotor structure according to a fifth embodiment of the present invention;

FIG. 16 is an exploded view of a fifth embodiment of the present invention of a reduction clutch for a washing machine;

FIG. 17 is a diagram illustrating a braking and clutching configuration of a reduction clutch according to a sixth embodiment of the present invention;

FIG. 18 is a diagram of a fork structure according to a sixth embodiment of the present invention;

FIG. 19 is a diagram of a fork structure according to a sixth embodiment of the present invention;

FIG. 20 is an assembly diagram of an input shaft and torque transmission sleeve according to a fifth embodiment of the present invention;

figure 21 is a cross-sectional view of the present invention.

Reference numerals in the drawings illustrate: 1-input shaft 2-input shaft 3-lower sun gear 4-lower planet wheel 5-lower planet wheel carrier 6-lower inner ring gear 7-upper planet wheel carrier 8-upper planet wheel 9-upper sun gear 10-upper inner ring gear 11-brake wheel 12-dewatering shaft 13-output shaft 14-upper housing 15-lower housing 16-stator 17-rotor 18-torque transmission shaft sleeve 19-clutch shaft sleeve 20-shift fork 21-brake belt 22-brake arm 23-center shaft 24-first bearing 25-second bearing 26-third bearing 27-connecting arm 29-buffer structure 30-fixing piece 31-torsion spring 32-traction motor 33-circuit board 34-locknut 35-elastic washer 36-return spring 201-input shaft sleeve body 202-input shaft sleeve mount 203-input shaft sleeve connection post 501-lower planet wheel carrier mount 502-lower connection post 503-lower planet wheel axle 504-lower planet wheel carrier cover 505-lower planet carrier connection post 506-lower inner ring gear mount hole 601-lower inner connection post 603-lower inner ring gear mount 701-upper carrier cover 901-upper planet wheel carrier cover upper traction post 703-upper planet wheel mount 1001-upper planet wheel mount boss upper inner ring gear mount 1001-lower planet wheel mount boss inner gear mount boss 704-lower planet wheel mount boss lower planet wheel mount connection post 501-lower planet carrier connection post The brake wheel assembly comprises a brake wheel assembly body, a brake wheel connecting part 1101, a riveting part 1104, a brake wheel cover 1105, a brake wheel body 1103, a brake wheel mounting part 1201, a shaft body 1202, a shaft seat 1203, a shaft body through hole 1501, a space 1502, a side wall 1503, a first lower end surface 1504, a second side wall 1505, a third lower end surface 1601, a stator body 1602, a stator connecting part 1603, a connecting part 1604, a shifting fork opening 1605, a stator mounting hole 1606, a stator positioning column 1607, a stator engaging part 1608, a mounting part 1609, a motor wiring opening 1701, a connecting part 1801, a torque transmission shaft sleeve engaging part 1802, a columnar body 1803, a central through hole 2701, a second push plate 2702, a third push plate 29, a buffer structure 2901, a pin shaft 2902, an end cover 2903 and a nut 2904.

Detailed Description

The following describes a deceleration clutch of a washing machine in detail with reference to the accompanying drawings:

as shown in fig. 21, the deceleration clutch for a washing machine of the present invention comprises a deceleration device, the deceleration device comprises a brake wheel 11 and a wheel train arranged in the brake wheel 11, wherein the brake wheel 11 comprises a brake wheel cover 1104 and a brake wheel body 1105 with an inner chamber, the upper end of the brake wheel body 1105 is rigidly connected with a dewatering shaft 12, the lower end of the brake wheel body 1105 is provided with an opening, the brake wheel cover 1104 is fixedly connected with the lower end of the brake wheel body 1105 and covers the opening at the lower end of the brake wheel body 1105 to form a closed inner chamber, and the wheel train is arranged in the closed inner chamber between the brake wheel body 1105 and the brake wheel cover 1104.

Specifically, the brake wheel cover 1104 has a disc structure, an opening is formed in the center of the disc structure, the opening of the brake wheel cover 1104 is sleeved on the input shaft sleeve 2 of the washing machine, and the brake wheel cover 1104 and the opening of the brake wheel body 1105 are fixed in a riveting manner.

Further, a riveted part is arranged at the opening of the brake wheel body 1105, and the thickness of the inner wall of the riveted part is smaller than the thickness of the circumferential side wall of the brake wheel body 1105, so that a step structure for limiting the brake wheel cover 1104 is formed between the inner wall of the riveted part and the inner wall of the brake wheel body 1105; the axial height of the rivet is greater than the thickness of the brake cover 1104.

Further, the deceleration clutch device of the washing machine is characterized in that the opening of the brake wheel cover 1104 extends outwards along the axial direction for a certain distance to form a bearing mounting part, and at least two sets of third bearings 26 are arranged between the bearing mounting part of the brake wheel cover 1104 and the input shaft sleeve 2.

The speed reducing device comprises a shell, the brake wheel 11 is arranged in the shell, and at least one set of second bearings 25 are arranged between the bearing mounting part of the brake wheel cover 1104 and the lower end of the shell.

At least one set of first bearings 24 is provided between the dewatering shaft 12 and the upper end of the housing, preferably the first bearings 24, the second bearings 25 and the third bearings 26 are rolling bearings.

As a preferred embodiment of the present invention, the housing includes an upper housing 14 and a lower housing 15, the first bearing 24 is installed between the dehydrating shaft 12 and the upper housing 14, and the second bearing 25 is installed between the brake wheel body 1105 and the lower housing 15.

In another implementation manner of the fixed connection between the brake wheel body 1105 and the brake wheel cover 1104, the open end of the brake wheel body 1105 is turned outwards to form a brake wheel body connection part, and the brake wheel cover 1104 is connected with the brake wheel body connection part through threads.

In another implementation manner of the fixed connection between the brake wheel body 1105 and the brake wheel cover 1104, the brake wheel body 1105 and the brake wheel cover 1104 are fixed through spline connection, spline teeth are arranged on the circumferential side wall of the brake wheel cover 1104, and spline tooth grooves for assembling the spline teeth of the brake wheel cover are arranged on the inner wall of the opening of the brake wheel body 1105.

As a preferred embodiment of the invention, the gear train comprises a double-layer planetary gear train, the lower layer gear train of the double-layer planetary gear train comprises a lower layer sun gear 3, a lower layer planetary gear 4 meshed with the lower layer sun gear, a lower layer planetary gear carrier 5 and a lower layer internal gear ring 6, the lower layer sun gear 3 is fixedly connected with the input shaft 1, the lower layer planetary gear 4 is meshed with the lower layer internal gear ring 6, and the lower part of the lower layer internal gear ring 6 is fixedly connected with the input shaft sleeve 2; the upper layer gear train of the double-layer planetary gear train comprises an upper layer sun gear 9, an upper layer planetary gear 8 meshed with the upper layer sun gear, an upper layer planetary gear carrier 7 and an upper layer internal gear ring 10, wherein the upper layer sun gear 9 is connected with an output shaft 13, the upper layer planetary gear 8 is meshed with the upper layer internal gear ring 10, and the upper layer internal gear ring 10 is fixedly connected with a brake wheel 11 through a spline; the center position of the lower layer planet carrier 5 is fixedly connected with an upper layer sun gear 9, and the upper layer planet carrier 7 is fixedly connected with the lower layer internal gear ring 6 through a spline; spline teeth are respectively arranged on the inner side wall of the brake wheel 11 corresponding to the gear train at the upper layer and the circumferential outer wall of the gear ring 10 in the upper layer, and a gap is reserved between the gear train at the lower layer and the gear ring 6 in the lower layer on the inner side wall of the brake wheel 11.

According to the invention, the dehydration shaft 12 is fixedly connected with the brake wheel 11, the dehydration shaft 12 is fixedly connected with the brake wheel body 1105 through a spline, the brake wheel body 1105 and the brake wheel cover 1104 are fixedly connected in different places in a riveting mode, the dehydration shaft 12 and the brake wheel body 1105 of the embodiment are fixedly connected together in a spline connection mode, the assembly mode is simple, the connection is more stable and reliable after the connection and the fixation, and the transmission stability between the brake wheel 11 and the dehydration shaft 12 is ensured.

According to the invention, the dehydration shaft 12 is fixedly connected with the brake wheel 11, and the upper end and the lower end of the brake wheel 11 are respectively provided with the rolling bearings, so that the dehydration shaft 12 can be better supported, the inner barrel is prevented from shaking in the dehydration process, and meanwhile, the damage of the inner barrel to the speed reduction clutch caused by shaking is reduced.

Example 1

As shown in fig. 1 and 2, the embodiment is a specific structure and a connection manner of a gear train of a deceleration clutch of a washing machine, and specifically adopts the following technical scheme:

the gear train of the embodiment comprises a brake wheel 11 and a double-layer planetary gear train arranged in the brake wheel, wherein the lower-layer planetary gear train of the double-layer planetary gear train comprises a lower-layer central gear 3, a lower-layer planetary gear 4 meshed with the lower-layer central gear, a lower-layer planetary gear carrier 5 and a lower-layer internal gear ring 6, the lower-layer central gear 3 is fixedly connected with an input shaft 1, the lower-layer planetary gear 4 is meshed with the lower-layer internal gear ring 6, and the lower part of the lower-layer internal gear ring 6 is fixedly connected with an input shaft sleeve 2; the upper layer gear train of the double-layer planetary gear train comprises an upper layer sun gear 9, an upper layer planetary gear 8 meshed with the upper layer sun gear, an upper layer planetary gear carrier 7 and an upper layer internal gear ring 10, wherein the upper layer sun gear 9 is connected with an output shaft 13, the upper layer planetary gear 8 is meshed with the upper layer internal gear ring 10, and the periphery of the upper layer internal gear ring 10 is fixedly connected with a brake wheel 11; the center position of the lower layer planet carrier 5 is fixedly connected with an upper layer sun gear 9, and the upper layer planet carrier 7 is fixedly connected with the lower layer internal gear ring 6 in a key connection mode.

The gear train of the decelerating clutch of the washing machine comprises an upper planetary gear train and a lower planetary gear train, power is transmitted and redistributed between the upper planetary gear train and the lower planetary gear train, an output shaft 13 is connected with a pulsator of the washing machine, a dewatering shaft 12 is connected with an inner barrel of the washing machine, and the decelerating clutch is matched with a clutch device to realize reverse rotation of the inner barrel and the pulsator during washing of the washing machine. Meanwhile, the structure and the internal connection mode of the speed reducing clutch are improved, so that the transmission of the speed reducing clutch of the washing machine is more stable and reliable, and the overall structural strength is higher.

The gear train of the embodiment consists of an upper planetary gear train and a lower planetary gear train, and the power of the lower planetary gear train is transmitted to the upper planetary gear train and then to the output shaft 13 and the dewatering shaft 12 by fixedly connecting the upper planetary gear train with the lower internal gear ring 6 through the upper planetary gear carrier 7 and fixedly connecting the upper central gear 9 with the lower planetary gear carrier 5. Therefore, the structure of the upper layer planet carrier 7, the upper layer sun gear 9 and the lower layer planet carrier 5 is designed, the fixed connection of the upper layer planet carrier 7 and the lower layer internal gear ring 6 as well as the fixed connection of the upper layer sun gear 9 and the lower layer planet carrier 5 are realized in a key connection mode, and the connection mode is simple and reliable, so that the power transmission of the speed reduction clutch is more stable, the service life is longer, the manufacturing cost is reduced, and the speed reduction clutch has good market popularization value.

How to design the structure of the upper layer planet carrier 7, the lower layer internal gear ring 6 to be fixed, the upper layer sun gear 9 and the lower layer planet carrier 5, and how to realize the fixed connection mode of the upper layer planet carrier 7 and the lower layer internal gear ring 6, the upper layer sun gear 9 and the lower layer planet carrier 5 are key to realize the technical purpose of the invention. Specifically, the following technical scheme is adopted:

in this embodiment, the upper layer planet carrier 7 is fixedly connected with the lower layer inner gear ring 6 through a key connection manner, a connection key is arranged on the upper layer planet carrier 7, and a lower layer inner gear ring connection portion 602 for assembling the connection key of the upper layer planet carrier (7) is arranged on the lower layer inner gear ring 6.

Further, the connection key on the upper layer planet carrier 7 is a spline tooth, the lower layer internal gear ring connection part 602 is a spline tooth slot arranged on the inner wall of the opening at the upper end of the lower layer internal gear ring 6, and the spline tooth of the upper layer planet carrier 7 is inserted into the spline tooth slot of the lower layer internal gear ring 6 to realize fixed connection.

As shown in fig. 3 and 4, the upper-layer planetary carrier 7 of the present embodiment includes an upper-layer planetary carrier seat 704 and an upper-layer planetary carrier cover 701, and a plurality of upper connection posts 703 for connecting the upper-layer planetary carrier cover 701 are vertically provided on the circumference of the upper-layer planetary carrier seat 704; the upper planet wheel 8 is arranged between the upper planet wheel carrier cover 701 and the upper planet wheel carrier base 704 of the upper planet wheel carrier 7, and the upper planet wheel carrier base 704 of the upper planet wheel carrier 7 is fixedly connected with the lower internal gear ring 6 in a spline connection mode.

The upper layer planet carrier seat 704 and the upper layer planet carrier cover 701 of this embodiment are both disc-shaped structures, and are connected by an upper connecting post 703 to form an upper layer planet carrier 7, the upper connecting piece 703 and the upper layer planet carrier seat 704 are integrally formed, and a plurality of stand columns extend from the disc surface circumference of the upper layer planet carrier seat 704 to form the upper connecting piece 703. Correspondingly, the disc surface of the upper layer planetary carrier cover 701 is provided with a plurality of through holes matched with the upper connecting piece 703, and the connecting piece 703 is inserted into the through holes on the upper layer planetary carrier cover 701 to realize connection into a whole. The upper layer planet wheel 8 is arranged on the upper layer planet wheel carrier 7, in particular, a plurality of upper mounting holes 705 are circumferentially formed in the disc surface circumference of the upper layer planet wheel carrier 704, the upper mounting holes 705 are blind holes, the upper layer planet wheel shafts 702 are inserted into the blind holes, the upper layer planet wheel 8 is arranged on the upper layer planet wheel shafts 702 to realize rotation, and meanwhile, the upper layer planet wheel 8 can revolve along with the upper layer planet wheel carrier 7. The upper-layer planet carrier 7 is simple in overall structure assembly and has high stability.

Because the upper planet carrier seat 704 of the upper planet carrier 7 is positioned at the lower part and is closer to the lower gear train during installation, the connection between the upper planet carrier 7 and the lower internal gear 6 of the lower gear train is mainly realized through the fixed connection between the upper planet carrier seat 704 and the lower internal gear 6. Therefore, the assembly connection can be carried out along one direction, and the assembly connection is more convenient and quick.

Specifically, the outer side of the circumference of the upper planet carrier seat 704 of the upper planet carrier 7 and the inner wall of the lower inner gear ring 6 near one end of the upper gear train are respectively provided with a spline. Thus, when in installation, the upper planet wheel carrier 704 can be fixedly connected with the lower inner layer gear ring 6 by inserting the spline into the spline, the connection mode is simple, and the fixed connection mode is stable and reliable. In addition, since the lower ring gear inner teeth 601 are provided on the inner side of the lower ring gear 6, it is more convenient to machine spline teeth inside the ring gear while machining the lower ring gear inner teeth 601 during machining.

As shown in fig. 6, the lower planetary carrier 5 includes a lower planetary carrier seat 501 and a lower planetary carrier cover 504, and a plurality of lower connection posts 502 for connecting the lower planetary carrier cover 504 are vertically arranged on the circumference of the lower planetary carrier seat 501; the lower planet wheel 4 is arranged between the lower planet wheel carrier seat 501 and the lower planet wheel carrier cover 504 of the lower planet wheel carrier 5, and the lower planet wheel carrier seat 501 and the upper sun gear 9 of the lower planet wheel carrier 5 are fixedly connected in a threaded connection, spline connection or hole pin assembly mode.

The lower-layer planet carrier 5 of this embodiment is installed in a manner substantially identical to that of the upper-layer planet carrier 7, and the lower-layer planet carrier seat 501 and the lower-layer planet carrier cover 504 are both disc-shaped structures, and are connected by a lower connecting post 503 to form the lower-layer planet carrier 5. The lower planet wheel 4 is mounted on the lower planet carrier 5, specifically, a plurality of lower mounting holes 506 are circumferentially formed in the disc surface of the lower planet carrier seat 501, the lower mounting holes 506 are blind holes, the lower planet wheel shafts 503 are inserted into the blind holes, the lower planet wheel 4 is mounted on the lower planet wheel shafts 503 to realize rotation, and meanwhile, the lower planet wheel 4 can revolve along with the lower planet carrier 5. The lower planetary carrier 5 has simple assembly and higher stability.

Specifically, when lower layer planet wheel carrier 501 and upper sun gear 9 threaded connection, lower floor planet wheel carrier connecting portion 505 be the screw hole, the lower tip of upper sun gear 9 outwards turn-ups and form upper sun gear mount pad 901, set up the screw hole on the upper sun gear mount pad 901, adopt bolt or screw to pass the screw hole of lower floor planet wheel carrier 501 and the screw hole on the upper sun gear 9 and realize fixed connection, adopt threaded connection's mode fixed more reliably, ensured power transmission's stability.

When the lower planet carrier seat 501 is in spline connection with the upper sun gear 9, an opening is formed in the center position of the lower planet carrier seat 501, the lower planet carrier connecting portion 505 is a spline arranged on the inner wall of the opening, and a spline matched with the spline on the lower planet carrier seat 501 is arranged at the lower portion of the upper sun gear 9, so that spline connection of the lower planet carrier seat 501 and the lower planet carrier is realized. The spline connection mode is adopted, so that the assembly is simpler and more convenient, and the fixed connection is reliable and effective.

The lower connection post 502 of the present embodiment is disposed along an edge of the lower layer planet carrier seat 501, and the circumferential length of the lower connection post 502 is greater than the radial length. The arrangement mainly has the following technical effects:

First, since the dimensions of the lower planetary gear 4 and the lower ring gear 6 are determined after the gear ratio of the lower gear train is determined, if the lower planetary gear 4 is ensured to be smoothly mounted in the lower ring gear, the dimensions of the lower planetary gear carrier 501 are limited by the specifications of the lower ring gear 6, and therefore, the dimensions of the lower planetary gear carrier 501 need to be as small as possible to meet the mounting requirements. And the lower connection studs 502 are provided at the edges of the lower planet carrier holder 501 such that the apertures between the lower connection studs 502 are larger to meet the installation of the lower planet 4 after the lower planet carrier holder 501 has been designed to be small.

Second, the circumferential length of the lower connecting post 502 is greater than the radial length so that the lower connecting post 502 is subjected to greater torque, ensuring the overall stability of the lower planetary carrier 5.

Finally, the circumferential length of the lower connecting column 502 is greater than the radial length, so that the gap between the lower connecting column 502 and the planetary gear train is smaller, and the inner layer of the lower planetary gear 4 can be effectively prevented from entering ash. The lower planet carrier seat 501 of the lower planet carrier 5 is positioned at the upper end of the lower planet carrier cover 504 after assembly and is closer to the upper gear train, and the upper sun gear 9 is fixedly connected with the lower planet carrier seat 501 of the lower planet carrier 5 because the upper sun gear 9 is fixedly connected with the lower planet carrier 5. Therefore, the center position of the lower planet carrier seat 501 is provided with a lower planet carrier connecting portion 505 for fixedly connecting with the upper sun gear 9.

As shown in fig. 7, the lower end of the lower ring gear 6 in the present embodiment is fixedly connected to the input shaft sleeve 2. Specifically, the input shaft sleeve 2 includes an input shaft sleeve body 201 and an input shaft sleeve seat 202, the input shaft sleeve seat 202 is formed by flanging an end portion of the input shaft sleeve body 201 outwards, a plurality of input shaft sleeve connecting posts 203 extend out of a circumferential direction of the input shaft sleeve seat 202, a plurality of first mounting holes 603 are formed in an end portion of the inner gear ring 6 assembled with the input shaft sleeve 2, and the input shaft sleeve connecting posts 203 are inserted into the first mounting holes 603 to realize fixed connection.

As shown in fig. 5, in the embodiment, the upper ring gear 10 and the brake wheel 11 are fixed together through spline connection, an upper ring gear spline 1002 is circumferentially arranged on the outer wall of the upper ring gear 10, and a brake wheel spline 1101 is arranged on the inner wall of the brake wheel 11 at a position corresponding to the upper ring gear 10.

The upper end of the brake wheel 11 is fixedly connected with a dehydration shaft 12, the lower end of the dehydration shaft 12 is turned outwards to form a dehydration shaft mounting seat, and the upper end of the brake wheel 11 is fixedly connected with the dehydration shaft mounting seat of the dehydration shaft.

Example two

As shown in fig. 8, the present embodiment differs from the first embodiment only in that: the upper layer planet carrier 7 and the lower layer internal gear ring 6 of the embodiment are fixedly connected in a hole pin assembly mode.

The end portion of the upper layer planet wheel carrier seat 704 of the upper layer planet wheel carrier 7, which is close to one end of the lower layer gear train, is provided with a plurality of first fixing pins 706 along the circumferential direction, the end portion of the lower layer inner gear ring 6, which is close to one end of the upper layer gear train, is provided with a plurality of first mounting holes 603 corresponding to the first fixing pins 706, and the first fixing pins 706 are inserted into the first mounting holes 603 to realize fixed connection in a hole pin assembly mode.

Further, the upper planetary carrier 7 is fixedly connected with the lower internal gear ring 6 through a key connection or a hole pin assembly mode.

The first fixing pin 706 and the upper layer planet carrier 704 are integrally formed in this embodiment, and the end of the upper layer planet carrier 704 near one end of the lower layer gear train is attached to the end of the lower ring gear 6 near one end of the upper layer gear train after the first fixing pin 706 is inserted into the first mounting hole 603.

The advantages of this embodiment are: the connecting structure arranged on the upper layer planet carrier 7 and the lower layer inner gear ring 6 in a hole pin matching mode is simpler, the processing is easier, and the assembly is more convenient.

Similarly, the end of the upper layer sun gear 9 close to one end of the lower layer gear train in this embodiment is provided with a plurality of second fixing pins, the end of the lower layer planet wheel carrier 501 close to one end of the upper layer gear train is provided with a plurality of second mounting holes corresponding to the second fixing pins, and the second fixing pins are inserted into the second mounting holes to realize the fixed connection of the hole pin assembly mode.

The upper layer sun gear 9 and the lower layer planet carrier 5 of the embodiment are fixedly connected in a hole pin matching mode, and the connecting mode is simple and reliable, and the structure is simple

Example III

The difference between this embodiment and the first and second embodiments is only that: the lower ring gear connecting part 602 is the internal teeth of the lower ring gear 6, the connecting key on the upper planet carrier 7 is the external teeth meshed with the internal teeth of the lower ring gear 6, and the upper planet carrier 7 at the end part of the external teeth is provided with a convex step for limiting the axial displacement of the upper planet carrier 7.

The advantage of this way is that the structure of the lower ring gear 6 is kept unchanged, no separate processing of splines or the provision of mounting holes on the lower ring gear 6 is required, external teeth with the same tooth shape as the lower ring gear 6 are arranged on the upper planet carrier 7, and after the external teeth of the upper planet carrier 7 are meshed with the internal teeth of the lower ring gear 6, the external teeth are limited to slide down along the internal teeth by the convex steps, so that the fixed connection between the upper planet carrier 7 and the lower ring gear 6 is realized. Specifically, the external teeth of the upper layer planet carrier 7 of the present embodiment are disposed in the circumferential direction of the bottom end portion of the upper layer planet carrier 704, and the convex steps are disposed in the upper portion of the external teeth on the upper layer planet carrier 704.

Example IV

As shown in fig. 9, 10 and 11, the present embodiment provides another structure of the dewatering shaft 12 of the deceleration clutch of the washing machine and a connection mode of the dewatering shaft 12 and the brake wheel 11, specifically, the following technical scheme is adopted:

the washing machine dewatering shaft of the embodiment comprises a shaft body 1201 and a shaft seat 1202, wherein the upper end of the shaft body 1201 is fixedly connected with a washing barrel of the washing machine, the lower end of the shaft body 1201 is fixedly connected with the shaft seat 1202 or the lower end of the shaft body 1201 is integrally formed with the shaft seat 1202; the dewatering shaft is connected with a speed reducer of the washing machine through a shaft seat; the shaft body is provided with a shaft body through hole 1203 for the output shaft 13 to pass through.

Because the brake wheel 11 of the speed reducing clutch is fixedly connected with the dehydration shaft, the embodiment provides the dehydration shaft with a brand new structure, which is formed by integrally forming or fixedly connecting the shaft body 1201 and the shaft seat 1202 in a split manner, and the shaft seat 1202 is more convenient to be fixedly connected with the brake wheel 11.

Therefore, the dehydration shaft of the embodiment is suitable for the speed reduction clutch of the invention, is convenient for assembling the speed reduction clutch and the dehydration shaft, and ensures that the power transmission of the dehydration shaft is more stable.

Specifically, the shaft body 1201 in the embodiment is cylindrical, the shaft seat 1202 is disc-shaped, the lower end of the shaft body 1201 is integrally formed with the shaft seat 1202, and preferably, the shaft seat 1202 is formed by flanging the end of the lower end of the shaft body 1201.

The shaft body 1201 and the shaft seat 1202 of the embodiment are integrally formed, so that the integrity of the dewatering shaft is ensured, and the integral structure of the dewatering shaft is more stable.

The dewatering shaft of this embodiment may also adopt a split design, specifically, the shaft body 1201 is in a cylindrical shape, the shaft seat 1202 is in a disc shape, an opening is formed in the center of the disc-shaped shaft seat 1202, and the lower end of the shaft body 1201 is in spline connection with the opening of the shaft seat 1202. Therefore, the upper end opening of the brake wheel 11 is larger, so that the shaft seat 1202 is relatively larger in size for realizing tight installation between the brake wheel 11 and the shaft seat 1202, the shaft body 1201 and the shaft seat 1202 can be respectively processed after being arranged in a split mode, the processing is easier, the spline connection is adopted for fixing, and the assembly mode is simple and effective.

As shown in fig. 1, 9, 10 and 11, a decelerating clutch of a washing machine of the present embodiment is equipped with the above-mentioned dehydrating shaft 12, and includes a decelerating device, the decelerating device includes a brake wheel 11 and a wheel train arranged in the brake wheel 11, one end of the brake wheel 11 near the dehydrating shaft 12 is provided with an opening, and a shaft seat 1202 of the dehydrating shaft 12 is fixedly mounted on the opening of the brake wheel 11.

The shaft seat 1202 of the dewatering shaft 12 of the present embodiment is fixedly connected with the opening of the brake wheel 11 by riveting, and the shaft seat 1202 of the dewatering shaft 12 completely covers the opening of the brake wheel 11. The dewatering shaft 12 and the shaft seat 1202 of the embodiment are fixedly connected together in a riveting mode, the assembly mode is simple, the connection is more stable and reliable after being fixed, and the transmission stability between the brake wheel 11 and the dewatering shaft 12 is ensured.

Specifically, a riveting part 1102 is arranged at the opening of the brake wheel 11, and the thickness of the inner wall of the riveting part 1102 is smaller than that of the circumferential side wall of the brake wheel 11, so that a step structure for limiting the shaft seat of the dewatering shaft 12 is formed between the inner wall of the riveting part 1102 and the inner wall of the brake wheel 11; the axial height of the riveting part 1102 is larger than the thickness of the shaft seat 1202 of the dewatering shaft 12.

The method for assembling the speed reducing clutch of the present invention is changed by fixedly connecting the brake wheel 11 and the dewatering shaft 12, and the speed reducing clutch is assembled from the output shaft end to the input shaft, so that the dewatering shaft 12 is sleeved on the output shaft 13, the dewatering shaft 12 is fixed, the brake wheel 11 is mounted on the dewatering shaft 12, and the shaft seat 1202 of the dewatering shaft 12 is limited to be unable to continue to extend when reaching the step structure in the process of extending into the upper end opening of the brake wheel 11, and the riveting part 1102 is turned inwards and then riveted.

The structure of the dehydration shaft 12 of the speed reduction clutch changes the installation mode of the speed reduction clutch, and the connection relation between the dehydration shaft 12 and the brake wheel 11 ensures that the assembly process is more reasonable and effective, the assembly integrity is higher, and the transmission stability is ensured.

The manner of fixedly connecting the brake wheel 11 and the dewatering shaft 12 in this embodiment may also adopt a threaded connection manner, the open end of the brake wheel 11 is turned outwards to form a brake wheel connecting portion, and the shaft seat 1202 of the dewatering shaft 12 is connected with the brake wheel connecting portion through threads. The mode of adopting threaded connection is simpler and more convenient, and the assembly of being convenient for more.

The mode of the fixed connection of the brake wheel 11 and the dewatering shaft 12 in this embodiment may also adopt a spline connection mode, the brake wheel 11 and the shaft seat 1202 of the dewatering shaft 12 are fixed through spline connection, spline teeth are disposed on the circumferential side wall of the shaft seat 1202 of the dewatering shaft 12, and spline tooth grooves for assembling the spline teeth of the shaft seat are disposed on the inner wall of the opening of the brake wheel 11. By adopting the spline connection mode, the required part machining precision is higher, the assembling accuracy is higher, the stability degree after assembling is better, and the high-precision assembly requirement is met.

Because the upper internal gear ring 10 and the brake wheel 11 are fixedly connected through the spline, spline teeth are respectively arranged on the inner side wall of the brake wheel 11 corresponding to the upper gear train and the circumferential outer wall of the upper internal gear ring 10, and a gap is reserved between the inner side wall of the brake wheel 11 corresponding to the lower gear train and the lower internal gear ring 6.

The lower end opening of the brake wheel 11 is sleeved on the input shaft sleeve 2, the lower end opening of the brake wheel 11 extends outwards along the axial direction to form a brake wheel mounting part 1103, and at least two sets of third bearings 26 are arranged between the brake wheel mounting part 1103 and the input shaft sleeve 2; the speed reducer comprises a shell, the brake wheel 11 is arranged inside the shell, at least one set of second bearings 25 are arranged between the brake wheel mounting part 1103 and the lower end of the shell, and preferably, the second bearings 25 and the third bearings 26 are rolling bearings.

At least one set of first bearings 24 is installed between the shaft seat 1202 of the dewatering shaft 12 and the shell, and the first bearings 24 are not rolling bearings.

The dewatering shaft 12 of this embodiment is fixedly connected with the brake wheel, and the upper end and the lower end of the brake wheel 11 are respectively provided with bearings, so that the dewatering shaft 12 can be better supported, the inner barrel is prevented from shaking in the dewatering process, and meanwhile, the damage to the speed reduction clutch caused by shaking of the inner barrel is reduced.

Example five

As shown in fig. 12, 13, 14, 15 and 16, the present embodiment is a direct-drive motor applied to the reduction clutch of the present invention, and specifically adopts the following technical scheme:

the direct-drive motor of the embodiment comprises a rotor 17 and a stator 16 arranged in the rotor 17, wherein a cavity is formed in the stator 16, a clutch shaft sleeve 19 of a washing machine speed reduction clutch is arranged in the cavity of the stator 16, the clutch shaft sleeve 19 slides upwards to be meshed with the stator 16 so as to realize a washing program, and the clutch shaft sleeve 19 slides downwards to be meshed with the rotor 17 so as to realize a dewatering program; the stator 16 is provided with a stator engaging portion 1607 for engaging with and fixing the clutch hub 19.

The stator 16 of the direct-drive motor of the embodiment is internally provided with a cavity, so that the clutch device of the speed reduction clutch is integrated into the internal cavity of the stator 16 of the direct-drive motor, and meanwhile, the stator 16 of the motor is provided with a stator meshing part 1607 which is meshed with the clutch shaft sleeve 19 to realize the fixation of the clutch device.

In addition, the stator 16 of the direct drive motor of the present invention is provided with a stator engaging portion 1607 for engaging the clutch sleeve 19, which is an operating feature that the stator 16 combined with the direct drive motor itself is stationary. After the clutch shaft sleeve slides upwards to be meshed with the meshing part of the stator 16, as the stator 16 is fixed, the clutch shaft sleeve 19 meshed with the stator 16 is also fixed, the clutch shaft sleeve 19 is fixedly connected with the input shaft sleeve 2, and the input shaft sleeve 2 is fixed and the input shaft 1 rotates under the drive of the rotor 17 to realize a washing program; when the clutch shaft sleeve 19 slides downwards to be meshed with the rotor 17, the input shaft 1 and the input shaft sleeve 2 are driven by the rotor to rotate at the same speed and in the same direction, so that a dehydration procedure is realized. Therefore, the direct-drive motor fully utilizes the structural characteristics and the working mode of the direct-drive motor, realizes the high-level matching of the clutch device and the direct-drive motor, and is more beneficial to the work of the clutch device.

In order to implement the clutch function of the stator 16 according to the present invention, a stator engaging portion 1607 corresponding to the clutch sleeve 19 is required to be provided on the stator 16 for matching with the clutch sleeve, and as a preferred embodiment of the present embodiment, the stator 16 inside the cavity or at the opening extends a certain distance toward the inside of the cavity to form an annular rib position, and the stator engaging portion 1607 is a spline tooth provided on the inner wall of the annular rib position.

The clutch collar of the present embodiment is disposed in the internal cavity of the stator 16, so that the stator engaging portion 1607 is disposed in or above the internal cavity of the stator 16 in order to achieve engagement between the clutch collar 19 and the stator. The embodiment provides a specific arrangement manner of the stator engaging portion 1607 in combination with a specific structure of the stator, and specifically adopts the following technical scheme:

the stator 16 in this embodiment includes a stator body 1601 and a stator connecting portion 1602 fixedly connected thereto, the stator connecting portion 1602 being fixedly mounted on a casing of a reduction clutch of a washing machine; the cavity is disposed inside the stator body 1601, the stator engaging portion 1607 is disposed on an inner wall of the cavity of the stator body 1601, or the stator engaging portion 1607 is disposed on the stator connecting portion 1602. In this embodiment, a part of the clutch device of the speed reduction clutch is disposed on the stator 16 in combination with the specific structure of the stator 16, so that the integration level of the direct-drive motor is higher, and the clutch device is simpler and more convenient to assemble.

Further, the stator connecting portion 1602 is integrally formed with the stator body 1601, the stator connecting portion 1602 includes a connecting portion 1603 and a mounting portion 1608, the stator body 1601 extends from the cavity opening along the axial direction toward the side far from the cavity to form the connecting portion 1603, and the free end of the connecting portion 1603 is turned over toward the inner side of the cavity to form the mounting portion 1608; the stator engagement portion 1607 is a spline tooth provided on an inner wall of the mounting portion 1608.

The fixed engagement end of the existing clutch sleeve is generally provided with a fixed disc which is engaged with the clutch sleeve 19 to fix the clutch sleeve, and the fixed disc is fixedly arranged on the housing of the speed reduction clutch.

The embodiment provides a specific installation mode of the stator 16, specifically, the stator body 1601 is fixedly installed on the lower end surface of the casing of the washing machine reducer through the stator connecting portion 1602, and a plurality of stator installing holes 1605 for threaded connection and a plurality of stator positioning columns 1606 for positioning during installation are circumferentially arranged on the installing portion 1608 of the stator connecting portion 1602. In this embodiment, the stator positioning column 1606 is positioned and then is directly fixed by using a screw, so that the stator 16 in this embodiment is simple and convenient to install, and meanwhile, the installation of the upper fixing device of the clutch shaft sleeve of the speed reducing clutch is also realized, so that the steps of installation are saved, and the production efficiency is improved.

The clutch sleeve 19 of the speed reducing clutch of the present embodiment adopts a shift fork driving mode to realize up-and-down sliding, in order to enable the shift fork to extend into the cavity of the stator 16 to be matched with the clutch sleeve 19, a specific implementation mode is provided in this embodiment, specifically, the clutch sleeve 19 is driven by the shift fork 20, one end of the shift fork 20 extends into the internal cavity of the stator 16 to contact with the clutch sleeve 19 to stir the axial movement of the clutch sleeve 19, and a shift fork opening 1604 for the shift fork 20 to pass through is arranged on the stator 16.

The shift fork port 1604 of this embodiment has two setting modes, specifically:

in one mode, as shown in fig. 13, the fork opening 1604 is provided on the stator connecting portion 1602, the fork opening 1604 has a through hole structure, and spline teeth are provided on an inner wall of the mounting portion 1608 corresponding to the fork opening 1604. The arrangement makes the stator engaging portion 1607 arranged in a full circle, so that the engaging degree is higher and more stable when the clutch sleeve 19 is engaged with the stator engaging portion, and the effectiveness of the clutch sleeve 19 is ensured.

In the second mode, as shown in fig. 14, the fork 1604 has a notch structure, and the notch structure penetrates through the connection portion 1603 and the mounting portion 1608 of the stator connection portion 1602. By means of the arrangement, the processing of the shifting fork opening 1604 is simpler and more convenient, the opening area of the shifting fork opening 1604 is larger, the shifting fork 20 is assembled more simply and conveniently, spline teeth are arranged at the position of the mounting part 1608, where the shifting fork opening 1604 is not arranged, and the meshing effectiveness of the clutch shaft sleeve 19 is ensured.

The stator engaging portion 1607 in this embodiment may be formed by directly forming spline teeth on the stator connecting portion 1602, or may be separately provided, and is fixedly mounted on a lower end surface of the stator connecting portion 1602, specifically, the stator engaging portion 1607 is spline teeth provided on an inner wall of an annular disc-shaped body, the annular disc-shaped body is fixedly connected inside a cavity of the stator body 1601, or the annular disc-shaped body is fixedly connected on a side opposite to the cavity on the stator connecting portion 1602. When the benefit of setting like this, both components of a whole that can function independently set up can be when stator meshing portion 1607 damages, change alone, reduced cost of maintenance.

In another implementation manner in which the stator mounting portion 1602 and the stator engaging portion 1607 are separately disposed, the stator connecting portion 1602 is a connecting column, one end of the connecting column is fixedly connected to the stator body 1601, and the other end is fixedly connected to the lower end of the housing of the speed reduction clutch of the washing machine; the stator body 1601 extends from the opening of the cavity toward the inner side of the cavity for a certain distance to form an annular rib position, and the stator engaging portion 1607 is a spline tooth disposed on the inner wall of the annular rib position. Thus, the structure of the stator connecting part 1602 is simpler and the processing is more convenient, and the stator engaging part 1607 and the stator are integrally formed and arranged at the cavity to realize the fixed engagement with the clutch sleeve 19.

The above-mentioned stator connecting portion 1602 sets up to the condition that the spliced pole is more suitable for stator 16 fixed mounting on the mounting panel of washing machine, because the mounted position of direct-drive motor is far away from the mounting panel, adopts the erection column mounting means not only to install simpler, and the processing of stator connecting portion 1602 is also more simple and convenient moreover, again with stator engaging portion independent integration on stator 16 realize its function this moment.

The clutch sleeve 19 of the present embodiment slides downward to be engaged with the torque transmission sleeve 18, and the torque transmission sleeve 18 is provided on the rotor 17, thereby realizing the dehydration process.

The torque transmission shaft sleeve 18 of the embodiment comprises a columnar body 1802, a torque transmission shaft sleeve meshing part 1801 and a central through hole 1803, wherein spline teeth are arranged on the circumferential outer wall of the columnar body 1802 to form the torque transmission shaft sleeve meshing part 1801 for meshing with the spline teeth at the lower end of the clutch shaft sleeve 19, and the central through hole 1803 for the input shaft 1 to pass through is formed in the center of the columnar body 1802; the columnar body 1802 of the torque transmission shaft sleeve 18 is integrally formed with or fixedly connected with the rotor 17.

As shown in fig. 13, the torque transmission sleeve 18 of the present embodiment may be directly integrated with the rotor 17, and the torque transmission sleeve is simultaneously processed when the rotor 17 is processed, specifically, the columnar body 1802 of the torque transmission sleeve 18 is formed by a boss structure protruding inward by a certain height at the center position of the inner side of the bottom wall of the rotor 17. In this embodiment, the torque transmission shaft sleeve 18 and the rotor 17 are integrally arranged, so that the rotor 17 of the direct-drive motor has more functionality and is more convenient for modularized assembly during modularized production.

As shown in fig. 15, the torque transmission shaft sleeve 18 of the embodiment may be separately arranged with the rotor 17, that is, the torque transmission shaft sleeve 18 and the rotor 17 are two separate parts, for example, 14, after the torque transmission shaft sleeve 18 and the rotor 17 are separately processed, the torque transmission shaft sleeve 18 is fastened on the rotor 17 by a certain mounting mode, which has the advantages of convenience in separate disassembly and replacement, higher cost of the rotor 17, and capability of retaining the rotor 17 and replacing only the fixing disc during maintenance, thereby reducing maintenance cost.

In order to facilitate the fixed mounting of the torque transmission sleeve 18, a rotor connecting portion 1701 for fixedly mounting the torque transmission sleeve 18 is provided at the inner center position of the rotor 17 of the present embodiment.

As shown in fig. 16, the torque transmission sleeve 18 is fixedly connected with the rotor 17, an elastic washer 35 is disposed between the torque transmission sleeve 18 and the rotor 17, the elastic washer 35 has elastic spline teeth, the elastic spline teeth are meshed with the spline teeth of the torque transmission sleeve meshing portion 1801, and the tooth heights of the elastic spline teeth are smaller than the tooth heights of the spline teeth of the torque transmission sleeve meshing portion 1801. The elastic washer 35 of the present embodiment can reduce the impact force and engaging force of the clutch sleeve 19 when the clutch sleeve 19 is engaged with the torque transmission sleeve 18, and reduce the noise during engagement.

The rotor 17 of the present embodiment is fixedly mounted on the input shaft 1 by means of a locknut 34, so that the rotor 17 drives the input shaft 1 to rotate together.

As shown in fig. 20, the torque transmission sleeve 18 in the present embodiment may be in spline connection with the input shaft 1, or the torque transmission sleeve 18 and the input shaft 1 may be integrally formed, and spline teeth for meshing with spline teeth at the lower end of the clutch sleeve 19 are provided on the circumferential outer wall of the torque transmission sleeve 18.

The upper part of the stator in this embodiment is also fixed with a circuit board 33 of the direct drive motor and a motor wiring port 1609 corresponding to the circuit board 33.

The embodiment also provides a washing machine decelerating clutch with the direct-drive motor, which comprises a clutch device for controlling the washing machine to perform washing/dewatering switching, wherein the clutch device comprises a clutch shaft sleeve 19 capable of axially sliding and a shifting fork 20 for driving the clutch shaft sleeve 19, the clutch shaft sleeve 19 is arranged in a stator 16 and is provided with a cavity, one end of the shifting fork 20 extends into the internal cavity of the stator 16, and the other end of the shifting fork 20 is arranged outside the cavity of the stator 16 and is connected with a driving device; a buffer structure is arranged between the driving device and the shifting fork 20, and the force required by the buffer structure to be compressed or stretched is larger than the force required by shifting the clutch shaft sleeve.

The clutch sleeve 19 of the speed reduction clutch of the washing machine of this embodiment includes an upper end portion and a lower end portion, the outer diameter of the upper end portion is larger than the outer diameter of the lower end portion, spline teeth for meshing with the stator meshing portion 1607 are circumferentially provided on the upper end portion, and spline teeth for meshing with the torque transmission sleeve 18 are circumferentially provided on the inner side wall of the lower end portion.

The specific structure and connection manner are as shown in the fifth embodiment, and will not be described here.

Example six

As shown in fig. 17, 18 and 19, a speed reducing clutch of this embodiment at least includes a housing, a brake wheel 11 located in the housing, and a wheel train located in the brake wheel 11, wherein a direct-drive motor is fixedly connected to the lower portion of the housing, a clutch sleeve 19 capable of sliding up and down is disposed in a cavity of a stator 16 of the direct-drive motor, the clutch sleeve 19 slides up and down to be connected with a rotating structure and a fixed structure respectively to achieve dehydration and washing, the clutch sleeve 19 is driven by a shift fork 20, a gap is formed between an inner side wall of the stator 16 and an outer side wall of the clutch sleeve 19, a gap is formed at an upper portion of the gap where the stator 16 is located, and the shift fork 20 extends into the gap to be at least partially located in the cavity of the stator 16 to contact with the clutch sleeve 19 to shift the clutch sleeve 19 to axially move.

The clutch sleeve 19 is arranged in the cavity of the stator 16, so that the axial length of the speed reduction clutch can be shortened, and the axial installation space can be saved. One end of the shifting fork 20 is positioned in the cavity to drive the clutch shaft sleeve 19 to move, as the clutch shaft sleeve 19 is arranged in the cavity of the stator 16, the gap between the outer side wall of the clutch shaft sleeve 19 and the inner side wall of the stator 16 is smaller, and the driving device of the shifting fork 20 cannot be arranged in the cavity, so that the driving device of the shifting fork 20 is arranged outside the cavity and around the shell, the other end of the shifting fork 20 is positioned outside the cavity and around the shell and driven by the driving device, and a gap is formed at the upper part of the gap between the inner side wall of the stator 16 and the outer side wall of the clutch shaft sleeve 19 and the shifting fork stretches into the cavity to drive the clutch shaft sleeve 19.

The upper part of the clutch shaft sleeve 19 is provided with a spring, and the shifting fork 20 only needs to shift the clutch shaft sleeve 19 upwards, and the downwards movement of the clutch shaft sleeve 19 is realized by the gravity of the spring and the clutch shaft sleeve 19.

The shifting fork 20 at least comprises a shifting part 2001 contacted with the clutch shaft sleeve 19 and a connecting part 2002 for driving the shifting part 2001 to move, wherein the shifting part 2001 is positioned in a cavity of the stator 16, the connecting part 2002 is hinged with a fixing piece 30, one end of the connecting part 2002 is positioned outside the cavity of the stator 16, and the other end of the connecting part stretches into the cavity of the stator 16.

The connection portion 2002 and the poking portion 2001 may be an integral structure, the poking portion 2001 is in a half arc structure, the arc concave 2004 faces the clutch shaft sleeve 19, the arc convex 2005 faces the stator 16, a sheet structure extends outwards from one side of the stator 16 to the middle portion of the gap between the stator 16 and the clutch shaft sleeve 19, then bends upwards and extends to the outside of the cavity of the stator 16, bends outwards radially along the stator 16 and extends, is hinged with a fixing member 30, and extends upwards to form a driving end 2003. The shifting fork integrated structure is convenient for modularized production by virtue of integrated shaping of the shifting fork, reduces the number of parts of the washing machine, and is large in notch arranged on the upper part of the gap between the inner side wall of the stator 16 and the outer side wall of the clutch shaft sleeve 19 or is a notch.

Or the connecting part 2002 and the poking part 2001 are in a split structure, the poking part 2001 is in a half arc structure, the arc concave surface 2004 faces the clutch shaft sleeve 19, the arc convex surface 2005 faces the stator 16, one side of the stator 16 outwards extends to the middle part of the gap between the stator 16 and the clutch shaft sleeve 19, the connecting part 2002 is in a sheet structure and is hinged with a fixing piece 30, one end of the connecting part 2002 is downwards bent and extends to the cavity of the stator 16 and is fixedly connected with one end of the poking part 2001, which is positioned in the gap between the stator 16 and the clutch shaft sleeve 19, the other end of the connecting part 2002 extends outwards along the radial direction of the stator 16, and then upwards bent and extends to a driving end 2003.

The connecting portion 2002 extends into the cavity of the stator 16 to the end of the poking portion 2001 which is located at the gap between the stator 16 and the clutch sleeve 19, and then bends inwards and extends to form a portion overlapped with the poking portion 2001, and the poking portion 2001 and the portion are connected through threads. The structure of each part is simple in this case, and the processing is convenient.

The casing includes upper casing 14 and lower casing 15, and mounting 30 is a sheet structure of fixing at lower casing, 15, and with lower casing 15 lower tip parallel arrangement, the installation of the connecting portion 2002 of mounting 30 and shift fork 20 is: the surface of the sheet structure is provided with two first lugs 3001 perpendicular to the surface, the two first lugs 3001 are oppositely arranged, the first lugs 3001 are provided with first mounting holes, the connecting part 2002 is oppositely provided with two second lugs 2006, the two second lugs 2006 are oppositely arranged, the second lugs 2006 are provided with second mounting holes, and after the first mounting holes are aligned with the second mounting holes, the first mounting holes are connected through pin shafts, and torsion springs are arranged on the pin shafts. Only the shifting fork 20 is driven to move towards one direction, and the other direction is automatically reset by the force of the torsion spring. The connecting mode is simple in structure, convenient to process, assemble and install.

The direct-drive motor stator 16 comprises a mounting part, wherein the mounting part is a circular flanging with a certain thickness, which is formed by extending the inner circumference of the upper end of the stator 16 inwards, and the circular flanging is connected with the lower end face of the lower shell 15 through threads after being matched. The stator mounting part of the direct drive motor is provided with a notch for the shifting fork to pass through, and the lower end surface of the lower shell is provided with a sheet-shaped fixing piece 30 of the shifting fork 20 corresponding to the notch. The fixed structure is an installation part of the stator, and spline teeth matched with the clutch shaft sleeve 19 are arranged on the inner circumference of the installation part or on the lower end surface of the installation part.

The shift fork 20 is driven by a driving device, a buffer structure 29 is arranged between the driving device and the shift fork 20, the buffer structure 29 is an elastic piece, the force required for compressing or stretching the elastic piece is larger than the force required for poking the clutch shaft sleeve 19, when the shift fork 20 drives the clutch shaft sleeve 19 to move upwards, spline teeth of the clutch shaft sleeve 19 are not inserted into spline grooves of the fixed structure, but are propped against the spline teeth of the fixed structure, the end of the shift fork 20 cannot move, at the moment, the driving device also drives the shift fork to move, if the buffer structure 29 is not arranged, the shift fork can be deformed or broken, after the buffer structure 29 is arranged, the shift fork cannot move, and the buffer structure moves, and cannot deform or break. The force required for compressing or stretching the elastic member is larger than the force required for poking the clutch shaft sleeve 19, so that the driving device drives the shifting fork 20 to move and can not drive the buffer structure to move when the clutch shaft sleeve 19 is not propped up in the normal state. The buffer structure is arranged, so that the shifting fork can be prevented from being impacted, the service life of the shifting fork is prolonged, the shifting fork is not used as thick and heavy, shifting can be realized, the cost is saved, and the weight of the washing machine is reduced.

Specifically, the driving end 2003 of the shift fork 20 is driven by a driving device, a buffer structure 29 is provided between the driving device and the driving end 2003, the buffer structure 29 is an elastic member, the force required for compressing or stretching the elastic member is greater than the force required for poking the clutch sleeve 19, when the shift fork 20 drives the clutch sleeve 19 to move upwards, the spline teeth of the clutch sleeve 19 are not inserted into the spline grooves of the fixed structure, but are propped against the spline teeth of the fixed structure, the poking part 2001 of the shift fork 20 cannot move, at this time, the driving device still drives the shift fork to move, if the buffer structure 29 does not exist, the shift fork is deformed or broken, the driving device drives at this time after the buffer structure 29 is provided, the poking part 2001 of the shift fork does not move, the buffer structure moves, and the driving end 2003 of the shift fork does not deform or break. The force required for compressing or stretching the elastic member is larger than the force required for poking the clutch shaft sleeve 19, so that the driving device drives the shifting fork 20 to move and can not drive the buffer structure to move when the clutch shaft sleeve 19 is not propped up in the normal state.

Specifically, the buffer structure 29 includes a pin 2901, one end of the pin 2901 is provided with a circular end cover 2902, the other end is screwed with a nut 2903, a spring 2904 is sleeved on the pin 2901 between the end cover 2902 and the nut 2903, and the force required for driving the spring 2904 is greater than the force required for driving the clutch sleeve 19.

The driving end 2003 is provided with a through hole, the through hole is sleeved on the pin shaft 2901 and is positioned between the nut 2903 and the spring 2904, the spring 2904 and the nut 2903 can mutually support the driving end 2003, or the driving device is provided with a through hole, the through hole is sleeved on the pin shaft 2901 and is positioned between the nut 2903 and the spring 2904, the round end cover 2902 faces the driving device of the shifting fork 20, the spring 2904 is in a compressed state, and the spring 2904 and the nut 2903 can mutually support the driving end 2003.

The circular end cap 2902 is positioned at the other end of the pin 2901 and has an arcuate surface, preferably a spherical surface. The contact with the curved surface is a spherical curved surface, so that the thrust force can be maximally distributed to the direction of the pin 2901, and the fork 20 can be driven with minimal force.

The brake wheel 11 is provided with a brake belt 21, the brake belt 21 is connected with a brake arm 22, a central shaft 23 of the brake arm 22 is fixedly arranged on the lower surface of the upper shell 14 or the upper surface of the lower shell 15 of the speed reduction clutch, a connecting arm 27 is further arranged on the lower portion of the central shaft 23 positioned on the brake arm 22, the brake arm 22 drives the connecting arm 27 to move, the connecting arm 27 drives the shifting fork 20 to move, and the clutch shaft sleeve 19 is driven to slide up and down to be respectively connected with a rotating structure and a fixed structure so as to achieve dehydration and washing. The connecting arm 27 is a driving device of a shifting fork. The brake arm 22 is pulled by a traction motor 32.

The surface of the brake arm 22 perpendicular to the central axis 23 on the connecting arm 27 is respectively bent with the first push piece 2201 and the second push piece 2701 along the axial direction, and the first push piece 2201 and the second push piece 2701 are opposite to each other and perpendicular to the rotation direction of the brake arm 22 and the connecting arm 27 around the central axis 23. When the brake arm 22 rotates around the central axis, the first push plate 2201 pushes the second push plate 2701 to move, and the second push plate 2701 drives the connecting arm 27 to rotate around the central axis 23.

A torsion spring is arranged between the brake arm 22 and the central shaft 23, and the torsion spring is arranged between the connecting arm 27 and the central shaft 23, so that only one direction of movement of the brake arm 22 is required to be driven, and the other direction of movement is realized by resetting the torsion spring.

In a natural state, the first push plate 2201 and the second push plate 2701 are at a certain distance. It is realized that the traction motor 32 can only drive the brake band to loosen and can not drive the shifting fork 20 to move under a smaller stroke, and when the traction motor 32 reaches a larger stroke, the first push plate 2201 and the second push plate 2701 are contacted, the brake arm 22 can only drive the connecting arm 27, and the connecting arm 27 drives the shifting fork 20 again.

The center of the first push plate 2201 or the second push plate 2701 is provided with a hole, a bolt is installed through the hole, the head of the bolt is positioned in the gap between the first push plate 2201 and the second push plate 2701, and a gasket is arranged between the head of the bolt and the first push plate 2201 or the second push plate 2701. The spacer can adjust the distance between the first pusher 2201 and the second pusher 2701 to ensure that the travel of the traction motor 21 matches the position of the clutch collar 19.

The connecting arm 27 extends or bends the third push plate 2702 in the axial direction, and the third push plate 2702 is opposite to one end of the shift fork to drive the shift fork to move. The third pushing plate 2302 is a driving device of the shifting fork 20.

The buffer structure is arranged between the third pushing plate 2302 and the shifting fork 20, a through hole is arranged on the shifting fork, the through hole is sleeved on the pin shaft 2901 and positioned between the nut 2903 and the spring 2904, the round end cover faces the third pushing plate 2702, or the through hole is arranged on the third pushing plate 2302, the through hole is sleeved on the pin shaft 2901 and positioned between the nut 2903 and the spring 2904, the round end cover 2902 faces the shifting fork, and the spring 2904 is in a compressed state.

The braking device of the speed reducing clutch comprises a braking wheel 11 outside a gear train and a braking belt 21 outside the braking wheel 11, the clutch device of the speed reducing clutch comprises a clutch shaft sleeve 19 capable of sliding up and down and a shifting fork 20 for driving the clutch shaft sleeve, the braking belt 21 and the shifting fork 20 share one traction motor 21, the cost is saved, and the traction motor 32 at least comprises two strokes. The brake belt 21 and the clutch sleeve 19 can be driven by one traction motor 32, the brake wheel 11 and the dewatering shaft 12 of the washing machine are connected into a whole, when the washing machine is used for washing, the output shaft 13 and the dewatering shaft 12 are reversely rotated, when the washing machine is used for dewatering, the dewatering shaft 12 and the output shaft 13 are rotated in the same direction, in the washing state and the dewatering state, the brake arm 22 is required to control the brake belt 21 to loosen the brake wheel 11, when the washing machine is used for washing, the output shaft 13 and the dewatering shaft 12 are reversely rotated, the clutch sleeve 19 is positioned at the upper part and connected with a fixed structure, when the washing machine is used for dewatering, the dewatering shaft 13 and the output shaft 12 are rotated in the same direction, the clutch sleeve 19 is positioned at the lower part and connected with a rotating structure, and in the natural state of the washing machine, the clutch sleeve 19 is positioned at the lower part by the force of a spring, so the traction motor 32 is provided with two strokes, in the first stroke, only the brake arm 22 is driven to loosen the brake wheel 11, in the second stroke, the brake arm 22 is driven to loosen the brake belt 21, meanwhile, the brake arm 22 is driven to drive the connecting arm 27, and the connecting arm 27 is driven, and the clutch sleeve 19 is driven to move upwards by the shifting fork 20.

The brake belt 21 is connected with the brake arm 22, the brake arm 22 is provided with a central shaft 23 fixedly arranged on the lower surface of the upper shell 14 or the upper surface of the lower shell 15 of the speed reduction clutch, one end of the brake arm 22 is connected with the traction motor 32, the other end of the brake arm is connected with the brake belt, the central shaft is positioned at the lower part of the brake arm, a connecting arm is further arranged, the brake arm drives the connecting arm to move, the connecting arm drives a shifting fork to move, and the shifting fork drives the clutch shaft sleeve to slide up and down to be respectively connected with the rotating structure and the fixed structure so as to realize dehydration and washing.

The traction motor 32 comprises a first stroke and a second stroke, the traction displacement of the first stroke is smaller than the traction displacement of the second stroke, in the first stroke state, the brake arm 22 drives the brake belt 21 to be loosened, the shifting fork 20 does not act, in the second stroke state, the brake arm 22 drives the brake belt 21 to be loosened, and the shifting fork 20 drives the clutch shaft sleeve 19 to be connected with a fixed structure upwards. The brake band 21 is released in both the first stroke and the second stroke, but to a different extent. Only in the emergency stop and the unused state, the braking band 21 is in a clasping state, so that the abrasion in the use process is small, and the probability of occurrence of abnormal braking noise is reduced.

The brake arm 22 and the surface of the connecting arm 27 perpendicular to the central shaft 23 are respectively bent to form a first push piece 2201 and a second push piece 2701 along the axial direction, the first push piece 2201 and the second push piece 2701 are opposite, and are perpendicular to the rotation direction of the brake arm 22 and the connecting arm 27 around the central shaft, in the first travel state, the first push piece 2201 and the second push piece 2701 are not contacted, and in the second travel state, the first push piece 2201 and the second push piece 2701 are contacted. The connecting arm 27 extends or bends out the third push plate 2702 along the axial direction, the third push plate 2702 is opposite to one end of the shifting fork 20 to drive the shifting fork to move, and in the second stroke state, the third push plate 2702 is contacted with the opposite end of the shifting fork.

In the initial state, the clutch sleeve is connected with the rotating structure, the traction motor 32 does not act, the traction motor reaches a second stroke in the washing state, and the traction motor 32 is a first stroke in the dehydration state.

The radially outer part of the lower end surface of the lower housing 15 is fixedly connected with the stator 16 of the direct drive motor, and the radially inner part of the lower end surface of the lower housing 15 is recessed upwards to form a space 1501, and a supporting bearing 25 of the brake wheel is arranged in the space 1501. The shell is divided into an upper shell 14 and a lower shell 15, the upper shell 14 is connected with the bottom of a washing barrel of the washing machine, the direct-drive motor is directly arranged at the lower part of the lower shell, connecting pieces can be reduced, the number of parts of the washing machine is reduced, and the structure is simplified. The periphery of the shell is of a cylinder structure with the same upper and lower diameters, so that the outer part of the shell is less in bending, and the installation is convenient.

The bottom end of the sidewall 1502 of the lower housing 15 is bent radially inward for a certain distance to form a first lower end surface 1503, then bent upward for a certain distance to form a second sidewall 1504, then bent inward for a certain distance to form a third lower end surface 1505, and the space formed by the second sidewall 1504 and the third lower end surface 1505 is provided with the support bearing 25 of the brake wheel 11. The support bearing is a rolling bearing.

The direct drive motor stator comprises a mounting portion 1602, wherein the mounting portion 1602 is a circular flange with a certain thickness formed by extending the inner circumference of the upper end of the stator 16, and the circular flange is in threaded connection with the first lower end surface 1503 of the lower housing 15 after being matched. The inner circumference of the mounting portion 1602 is provided with spline teeth, or the lower end surface of the mounting portion 1602 is provided with spline teeth.

The clutch shaft sleeve 19 is sleeved outside the input shaft sleeve 2 and is slidably and non-rotatably connected with the input shaft sleeve 2, the clutch shaft sleeve 19 is arranged in a cavity of the stator, and the clutch shaft sleeve moves upwards to be in spline connection with the mounting part of the stator so as to fix the input shaft sleeve.

Example seven

The embodiment provides a washing machine adopting the washing machine speed reducing clutch, which can realize reverse rotation of the impeller and the inner barrel in the washing process, and has better washing effect.

The foregoing description is only illustrative of the preferred embodiment of the present invention, and is not to be construed as limiting the invention, but is to be construed as limiting the invention to any and all simple modifications, equivalent variations and adaptations of the embodiments described above, which are within the scope of the invention, may be made by those skilled in the art without departing from the scope of the invention.

Claims (10)

1. The washing machine speed reduction clutch comprises a speed reduction device, wherein the speed reduction device comprises a brake wheel (11) and a wheel train arranged in the brake wheel (11), and is characterized in that the brake wheel (11) comprises a brake wheel cover (1104) and a brake wheel body (1105) with an inner cavity, the upper end of the brake wheel body (1105) is rigidly connected with a dewatering shaft (12), the lower end of the brake wheel body (1105) is provided with an opening, the brake wheel cover (1104) is fixedly connected with the lower end of the brake wheel body (1105) and covers the opening at the lower end of the brake wheel body (1105) to form a closed inner cavity, and the wheel train is arranged in the closed inner cavity between the brake wheel body (1105) and the brake wheel cover (1104);

the speed reducing clutch further comprises a clutch device, the clutch device comprises a clutch shaft sleeve (19) and a shifting fork (20) for driving the clutch shaft sleeve (19), the clutch shaft sleeve (19) is sleeved on the input shaft sleeve (2) and can slide along the axial direction of the input shaft sleeve (2) to achieve dehydration and washing, the clutch shaft sleeve (19) is positioned in a cavity of a stator (16) of the direct drive motor, one end of the shifting fork (20) is positioned in the cavity of the stator (16) and is in contact with the clutch shaft sleeve (19) to shift the clutch shaft sleeve (19) to move axially, the other end of the shifting fork (20) is positioned outside the cavity of the stator (16) and is connected with a driving device for driving the shifting fork (20) to move, a buffer structure (29) is arranged between the driving device and the shifting fork (20), and the buffer structure (29) is an elastic piece, and the force required by compression or stretching of the elastic piece is larger than the force required by shifting the clutch shaft sleeve.

2. The washing machine decelerating clutch as claimed in claim 1, wherein the brake wheel cover (1104) has a disc-shaped structure, an opening is arranged at the center of the disc-shaped structure, the opening of the brake wheel cover (1104) is sleeved on the input shaft sleeve (2) of the washing machine, and the brake wheel cover (1104) and the opening of the brake wheel body (1105) are fixed in a riveting manner.

3. The decelerating clutch of washing machine as claimed in claim 2, wherein the opening of the brake wheel body (1105) is provided with a rivet portion, and the thickness of the inner wall of the rivet portion is smaller than the thickness of the circumferential side wall of the brake wheel body (1105) so that a step structure for limiting the brake wheel cover (1104) is formed between the inner wall of the rivet portion and the inner wall of the brake wheel body (1105); the axial height of the riveting part is larger than the thickness of the brake wheel cover (1104).

4. A washing machine decelerating clutch as claimed in claim 2, characterized in that the opening of the brake wheel cover (1104) extends outwards along the axial direction for a certain distance to form a bearing mounting part, and at least two sets of rolling bearings are arranged between the bearing mounting part of the brake wheel cover (1104) and the input shaft sleeve (2).

5. A washing machine decelerating clutch as claimed in claim 4, wherein the decelerating device comprises a housing, the brake wheel (11) is arranged in the housing, and at least one set of rolling bearing is arranged between the bearing mounting part of the brake wheel cover (1104) and the lower end of the housing.

6. A washing machine decelerating clutch as claimed in claim 1, wherein the opening end of the brake wheel body (1105) is turned outwards to form a brake wheel body connecting part, and the brake wheel cover (1104) is connected with the brake wheel body connecting part through screw threads.

7. The washing machine decelerating clutch as claimed in claim 1, wherein the brake wheel body (1105) is fixed to the brake wheel cover (1104) through spline connection, spline teeth are arranged on the circumferential side wall of the brake wheel cover (1104), and spline tooth grooves for assembling the spline teeth of the brake wheel cover are arranged on the inner wall of the opening of the brake wheel body (1105).

8. The washing machine speed reducing clutch according to claim 1, wherein the gear train comprises a double-layer planetary gear train, the lower layer gear train of the double-layer planetary gear train comprises a lower layer sun gear (3), a lower layer planetary gear (4) meshed with the lower layer sun gear, a lower layer planetary gear carrier (5) and a lower layer internal gear ring (6), the lower layer sun gear (3) is fixedly connected with the input shaft (1), the lower layer planetary gear (4) is meshed with the lower layer internal gear ring (6), and the lower part of the lower layer internal gear ring (6) is fixedly connected with the input shaft sleeve (2); the upper layer gear train of the double-layer planetary gear train comprises an upper layer central gear (9), an upper layer planetary gear (8) meshed with the upper layer central gear, an upper layer planetary gear carrier (7) and an upper layer internal gear ring (10), wherein the upper layer central gear (9) is connected with an output shaft (13), the upper layer planetary gear (8) is meshed with the upper layer internal gear ring (10), and the upper layer internal gear ring (10) is fixedly connected with a brake wheel (11) through a spline; the center position of the lower layer planet carrier (5) is fixedly connected with an upper layer sun gear (9), and the upper layer planet carrier (7) is fixedly connected with the lower layer internal gear ring (6) through a spline; spline teeth are respectively arranged on the inner side wall of the brake wheel (11) corresponding to the upper layer gear train and the circumferential outer wall of the upper layer gear ring (10), and a gap is reserved between the inner side wall of the brake wheel (11) corresponding to the lower layer gear train and the lower layer gear ring (6).

9. The washing machine speed reducing clutch according to claim 1, wherein the direct-drive motor comprises a rotor (17) and a stator (16) arranged in the rotor (17), a cavity is formed in the stator (16), a clutch shaft sleeve (19) of the washing machine speed reducing clutch is arranged in the cavity of the stator (16), the clutch shaft sleeve (19) slides upwards to be meshed with the stator (16) to realize a washing program, and the clutch shaft sleeve (19) slides downwards to be meshed with the rotor (17) to realize a dewatering program; the stator (16) is provided with a stator engaging part (1607) for engaging with and fixing the clutch sleeve (19).

10. A washing machine having a washing machine speed reducing clutch as claimed in any one of claims 1 to 9.