CN103103725A

CN103103725A - Washing method and applied washing machine driving mechanism

Info

Publication number: CN103103725A
Application number: CN201310066975XA
Authority: CN
Inventors: 刘晓辉; 胡义明; 陈昌
Original assignee: Changzhou Master Machinery Co Ltd
Current assignee: Changzhou Sinya Electromotor Co Ltd
Priority date: 2013-03-01
Filing date: 2013-03-01
Publication date: 2013-05-15
Anticipated expiration: 2033-03-01
Also published as: CN103103725B

Abstract

The invention relates to a washing method and an applied washing machine driving mechanism. An input member of a reducing mechanism is fixedly connected with a power member which provides rotating motion energy. A dehydration output member of the reducing mechanism is fixedly connected with a dehydration shaft sleeve. A washing output element of the reducing mechanism is connected with a washing shaft. The washing output part is connected with the input element, so that the washing output element rotates around the power element in a revolution mode. The dehydration output element is connected with the washing output element in a meshed mode, so that the dehydration output element and the washing output element respectively rotate by mutual effect through mutual effect. The magnetic damper is arranged and connected outside the dehydration shaft sleeve, and the magnetic damper can produce damping force on the dehydration shaft sleeve, so that rotating speed of the dehydration shaft sleeve is equal to or less than that of a washing shaft. The washing method and the applied washing machine driving mechanism greatly ensure washing effect, and meet the requirement for washing ratio.

Description

Washing method and washing machine driving mechanism applied by same

Technical Field

The invention relates to the technical field of washing machines, in particular to a washing method and a washing machine driving mechanism applied by the same.

Background

The washing machine removes the dirt attached to the washed clothes through chemical decomposition and mechanical impact, and mainly drives a wave wheel to rotate by a driving mechanism to stir water flow and rotate the clothes, thereby achieving the purpose of washing the clothes. The power source of the driving mechanism is a motor, the output shaft of the motor transmits the torque generated by the rotation of the motor to the speed reducing mechanism, and the output shaft of the speed reducing mechanism is connected with the impeller, so that the impeller is driven to rotate.

The common motor has high rotating speed, and in order to obtain proper output rotating speed, the motor needs to be decelerated in practical application, the motor is transmitted to a speed reducer to be decelerated through a one-stage belt pulley in a mode commonly adopted at present, and a one-stage or multi-stage gear reduction mechanism is arranged in the speed reducer to complete the deceleration with a certain speed ratio. The structure is not only complex, but also occupies large space. In order to solve the technical problem, some belt pulleys are removed at present, and the motor is directly connected with the speed reducer.

In order to further solve the technical problem, the chinese patent application with publication number CN102142734A discloses an external rotor motor assembly, which comprises a motor body, a driving shaft and a speed reducing mechanism, wherein the driving shaft is fixed on the speed reducing mechanism, the motor body directly drives the driving shaft, the motor body has an inner diameter space, and the speed reducing mechanism is installed in the inner diameter space of the motor body. Although the structure further reduces the occupied space to a certain extent, the principle of the structure is that the speed reducing mechanism is arranged in the inner diameter space of the stator through the mounting part on the inner circumference space of the stator of the outer rotor motor, so that the speed reducing mechanism cannot be applied to the inner rotor motor without the inner space, and has certain limitation.

In addition, the current washing machines all wash at a fixed rotation speed, and the washing shafts of the washing machines wash at the same rotation speed no matter the size of the washing load, which not only easily damages the washed clothes, but also damages the washing motor when the load is too heavy.

Disclosure of Invention

In order to solve the problems in the prior art, the applicant of the present invention previously filed a method and an apparatus for dual uniform power output of a washing machine, which is filed under the reference 201310031707.4, so that the rotation speed of a washing shaft can be changed according to the variation of the washing load to save energy consumption, and the washing shaft and a dewatering shaft sleeve rotate in opposite directions simultaneously to improve the washing effect.

In order to solve the technical problems, the invention provides a washing method, which adopts the technical scheme that:

a method of washing, wherein: the method comprises the following steps: fixedly connecting an input part of the speed reducing mechanism with a power part for providing rotational kinetic energy; fixedly connecting a dehydration output part of the speed reducing mechanism with a dehydration shaft sleeve of the washing machine; connecting a washing output component of the speed reducing mechanism with a washing shaft of the washing machine; the washing output component is connected with the input component, so that the washing output component revolves around the axis of the power component; the dewatering output component and the washing output component respectively rotate through interaction by meshing connection of the dewatering output component and the washing output component, so that the washing shaft and the dewatering shaft sleeve are respectively driven to rotate;

the outer part of the dehydration shaft sleeve is provided with a magnetic damper, and the magnetic damper can generate damping force to the dehydration shaft sleeve, so that the rotation speed of the dehydration shaft sleeve is equal to or less than that of the washing shaft.

Preferably, the method further comprises the following steps: the washing shaft transmitting a reaction force of a washing load thereto to the washing output part during rotation of the washing shaft; and the washing output component changes the interaction of the washing output component and the dehydration output component by applying washing load reaction force to the dehydration output component, so that the rotation speed of the washing output component and the dehydration output component is changed along with the change of the washing load.

The invention also provides a washing machine driving mechanism applied to the washing method, which comprises the following steps: the washing machine comprises a power part for providing rotational kinetic energy, a speed reducing mechanism with an input part, a dehydration output part and a washing output part, a washing shaft and a dehydration shaft sleeve which are connected with the speed reducing mechanism; wherein the input part is fixedly connected with the power part; the dehydration output component is fixedly connected with the dehydration shaft sleeve; one end of the washing output component is connected with the washing shaft, and the other end of the washing output component is connected with the input component; the dehydration output part is meshed with the washing output part; the magnetic damper is arranged and connected outside the dehydration shaft sleeve and can generate damping force on the dehydration shaft sleeve; the washing shaft and the dewatering shaft sleeve are respectively connected with a washing and dewatering executing component of the washing machine, and the dewatering shaft sleeve is arranged outside the washing shaft and is in rotary connection with the washing shaft.

Preferably, the magnetic damper is a hysteresis damper, comprising: a permanent magnet; a magnetically permeable member magnetically coupled to a permanent magnet, the permanent magnet causing the magnetically permeable member to be in an alternating magnetization state; the magnetic conducting component is selectively and fixedly connected with the dehydration shaft sleeve; and under the washing working condition, the magnetic conduction component is fixedly connected with the dehydration shaft sleeve, and the hysteresis damper generates damping force on the dehydration shaft sleeve, so that the rotation speed of the dehydration shaft sleeve is equal to or less than that of the washing shaft. In the magnetic hysteresis damper, the permanent magnet makes the magnetic conduction part in an alternating magnetization state, so that a magnetic hysteresis effect is generated on the magnetic conduction part, namely, a damping force is generated on the magnetic conduction part.

Preferably, the magnetic damper is an electromagnetic damper, comprising: an electromagnetic coil assembly; the magnetic conducting component is magnetically coupled with the electromagnetic coil assembly and can be selectively and fixedly connected with the dehydration shaft sleeve; and under the washing working condition, the magnetic conduction component is fixedly connected with the dehydration shaft sleeve, and the electromagnetic damper generates damping force on the dehydration shaft sleeve, so that the rotation speed of the dehydration shaft sleeve is equal to or less than that of the washing shaft. In the electromagnetic damper, the electromagnetic coil assembly and the magnetic conduction component form a closed magnetic circuit, and further generate magnetic repulsion or attraction action on the magnetic conduction component, namely generate damping force on the magnetic conduction component.

Preferably, the power component is a motor rotor or a belt pulley, and is respectively provided with a driving frame and a cavity arranged in the driving frame.

Preferably, the input member is an eccentric sleeve installed in the cavity and connected to the driving frame and rotating around the washing shaft.

Preferably, the washing output part includes: the spur gear is sleeved outside the eccentric sleeve and is rotationally connected with the eccentric sleeve, and the spur gear is used for revolving around the axis of the driving frame along with the rotation of the eccentric sleeve; and the connecting device is used for connecting the spur gear with the washing shaft or the dewatering shaft sleeve.

Preferably, the dehydration output part is an internal gear ring connected to the dehydration shaft sleeve or the washing shaft, and the spur gear is disposed therein such that the spur gear is engaged with the internal gear of the internal gear ring to generate rotation during the revolution.

Of course, the input component, the washing output component and the dewatering output component can also adopt the following technical scheme: the input component is arranged on the driving frame and comprises an input gear shaft arranged at the position of the driving frame deviated from the axis center and an input gear connected with the input gear shaft; the washing output part is an output gear in meshed connection with the input gear; the dewatering output component is an intermediate driving gear which is positioned outside the driving frame and is in meshed connection with the input gear.

Preferably, the washing machine driving mechanism further includes: and the clutch device is arranged in the shell component, is sleeved on the outer wall of the inner gear ring in an axial sliding manner, and is clamped and connected with or separated from the latch arranged at one end of the driving frame in an axial sliding manner.

Preferably, the clutch device includes: a solenoid mechanism secured within the housing assembly; the clutch gear ring is arranged on the inner side of the electromagnetic coil mechanism; the clutch gear ring is connected with the inner gear ring in a sliding mode, and a tooth groove connected with the clamping teeth at one end of the driving frame in a clamping mode is formed in the bottom end of the clutch gear ring.

Preferably, a clamping groove is formed in the inner side wall of the lower end of the magnetic conduction component of the magnetic damper, the clutch gear ring is provided with an upper clamping tooth matched with the clamping groove, the fixed connection between the magnetic conduction component and the dehydration shaft sleeve is realized through the tooth groove matching structure of the magnetic conduction component and the clutch gear ring, and the selective fixed connection between the magnetic conduction component and the dehydration shaft sleeve is realized when the clutch device performs working condition conversion.

Compared with the prior art, the washing method and the washing machine driving mechanism applied by the washing method have the following outstanding advantages:

1) the rotating speed of the washing shaft can be adjusted according to the change of the washing load, so that the damage of the washed clothes is reduced or eliminated, and the burning accident caused by the overload of the motor of the washing machine can be avoided; the washing shaft and the dehydration shaft sleeve can rotate reversely at the same time, so that the washing effect is improved; meanwhile, when the washing machine works, the magnetic damper generates an effective damping effect on the dehydration shaft sleeve, so that the rotation speed of the dehydration shaft sleeve is equal to or less than that of the washing shaft, the washing effect is greatly ensured, and the requirement of a cleaning ratio is met;

2) the hysteresis damper provided by the invention is small in installation volume, simple in structure, greatly reduced in production and manufacturing cost, and suitable for large-scale popularization and application in production;

3) the driving mechanism of the washing machine of the invention arranges the speed reducing mechanism in the power component, thus the space in the power component can be fully utilized, the volume of the driving mechanism is reduced, and the miniaturization of the washing machine is facilitated;

4) the spur gear in the speed reducing mechanism revolves along with the eccentric sleeve and simultaneously performs meshing action with the inner gear ring to perform autorotation, so that the washing shaft and the dewatering shaft sleeve realize simultaneous reverse rotation, the energy consumption of a power part is reduced, and the noise is reduced;

5) the invention adopts the connecting device to connect the spur gear to the washing shaft or the dewatering shaft sleeve, so that the spur gear converts the eccentric moment deviating from the axis of the power component, which is obtained when the spur gear rotates along with the eccentric sleeve, into the moment coaxial with the axis of the power component;

6) the power part for providing power is taken as one of the parts of the washing machine driving mechanism, and the power part can adopt the motor rotor and the belt pulley, so that the washing machine driving mechanism has more compact structure and smaller occupied space, and simultaneously reduces the consumption of a large number of connecting pieces, thereby further reducing the production cost of the washing machine.

The present invention will be described in detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic structural view of a driving mechanism of a washing machine according to a first embodiment of the present invention;

fig. 2 is an exploded view of the speed reducing mechanism of the first embodiment of the invention (clutch device not shown);

FIG. 3 is a schematic structural diagram of a positioning block according to a first embodiment of the present invention;

FIG. 4 is a schematic structural view of a crosshead shoe according to a first embodiment of the present invention;

FIG. 5 is a schematic structural view of a spur gear of the first embodiment of the present invention;

FIG. 6 is a schematic structural view of an eccentric sleeve of the first embodiment of the present invention;

FIG. 7 is a schematic structural view of a driving mechanism of a washing machine according to a second embodiment of the present invention;

fig. 8 is an exploded view of a speed reducing mechanism of a second embodiment of the invention (clutch device not shown);

fig. 9 is a schematic structural view of a land of the second embodiment of the present invention;

FIG. 10 is a right side view of the interface disc shown in FIG. 9;

FIG. 11 is a schematic structural view of a spur gear of a second embodiment of the present invention;

fig. 12 is an exploded view of the clutch device, the dehydrating shaft sleeve and the ring gear portion according to the first and second embodiments of the present invention;

fig. 13 is a schematic structural view of a clutch ring gear according to the first and second embodiments of the present invention;

fig. 14 is a schematic structural view of a driving mechanism of a washing machine according to a third embodiment of the present invention;

FIG. 15 is a schematic illustration of the exploded structure of FIG. 14;

FIG. 16 is a schematic structural view of a part of an assembly according to a third embodiment of the present invention;

fig. 17 is a schematic structural view of a magnetic conductive member according to a third embodiment of the present invention;

FIG. 18 is a schematic illustration of the exploded structure of FIG. 17;

fig. 19 is a schematic structural view of a clutch ring gear (magnet guide ring 912 is not shown) according to a third embodiment of the present invention;

FIG. 20 is a schematic view of the construction of the rotor insert of the present invention;

fig. 21 is a structural schematic view of an inner ring gear of the invention;

fig. 22 is a plan view of the ring gear of the invention;

FIG. 23 is a front view of the washer drive mechanism of the present invention;

FIG. 24 is a schematic view showing the rotation direction of the respective parts of the speed reducing mechanism and the washing shaft according to the present invention;

FIG. 25 is an enlarged schematic view of FIG. 14 at A;

fig. 26 is a schematic view of a driving mechanism of a washing machine according to a fourth embodiment of the present invention (hysteresis damper not shown).

Description of reference numerals: 1-a housing assembly; 2-a stator; 3-an inner rotor; 4-eccentric sleeve; 5-washing the shaft; 6-spur gears; 7-inner gear ring; 8-a connecting device; 9-a clutch device; 11-a housing; 110-heat dissipation holes; 12-motor end cap; 13-motor bolt; 14-mounting a disc; 15-a hysteresis damper; 150-screw; 151-a permanent magnet; 151-1-permanent magnet holder; 151-2-permanent magnet steel; 152-a magnetically permeable member; 152-1-a magnetically permeable member body; 152-2-injection molded mount; 153-a baffle; 154-card slot; 155-step surface; 16-a hall assembly; 17-a magnetic ring assembly; 18-a sealing ring; 20-dewatering shaft sleeve; 31-a drive frame; 32-lumen; 33-latch; 34-a rotor; 35-a rotor insert; 351-cylinder; 352-a base; 41-eccentric bushing body; 42-a first sleeve body; 43-a second sleeve body; 44-a through hole; 411-an epitaxial edge; 40-spur gear axis; 50-wash shaft axis; 51-input gear shaft; 52-first input gear; 53-intermediate gear; 54-a second input gear; 55-output gear; 60-external teeth; 62-gear grooves; 61-connecting the shaft hole; 63-steel ring; 71-an upper connector; 72-lower connector; 201-shaft sleeve groove; 711-external splines; 712-a tongue; 721-internal teeth; 722-a boss with holes; 723-reinforcing ribs; 81-connecting disc body; 82-a through hole; 83-a connecting shaft; 831-rolling sleeve; 84-a cylinder; 85-crosshead shoe; 86-positioning the slide block; 851-the disc body; 852-lower boss; 853-upper boss; 861-slider body; 862-ear plate; 863-grooves; 100-a bearing; 200-a spring; 91-engaging and disengaging the gear ring; 92-an electromagnetic coil; 93-a wire frame; 94-a coil holder; 95-an insulating protective sleeve; 911-inner spline; 912-a magnet conducting ring; 913-a gullet; 914-go up the latch.

Detailed Description

The core of the invention is a washing method, which has the advantages of high safety performance, good washing effect and the like, wherein: the method comprises the following steps:

fixedly connecting an input part of the speed reducing mechanism with a power part for providing rotational kinetic energy;

fixedly connecting a dehydration output part of the speed reducing mechanism with a dehydration shaft sleeve of the washing machine;

connecting a washing output component of the speed reducing mechanism with a washing shaft of the washing machine;

the washing output component is connected with the input component, so that the washing output component revolves around the axis of the power component;

the dewatering output component and the washing output component respectively rotate through interaction by meshing connection of the dewatering output component and the washing output component, so that the washing shaft and the dewatering shaft sleeve are respectively driven to rotate.

The washing shaft transmitting a reaction force of a washing load thereto to the washing output part during rotation of the washing shaft; and the washing output component changes the interaction of the washing output component and the dehydration output component by applying washing load reaction force to the dehydration output component, so that the rotation speed of the washing output component and the dehydration output component is changed along with the change of the washing load.

The core of the invention is to provide a washing machine driving mechanism applied to the washing method, which has the advantages of small axial size, compact structure and small occupied space. Fig. 23 is a front view of a driving mechanism of a washing machine according to the present invention, and fig. 1 and 7 are sectional views of two embodiments of the driving mechanism of a washing machine shown in fig. 23, and as shown in fig. 1 and 7, the driving mechanism of a washing machine includes: the washing machine comprises a power part for providing rotational kinetic energy, a speed reducing mechanism with an input part, a dehydration output part and a washing output part, a washing shaft and a dehydration shaft sleeve which are connected with the speed reducing mechanism; wherein,

the input part is fixedly connected with the power part;

the dehydration output component is fixedly connected with the dehydration shaft sleeve;

one end of the washing output component is connected with the washing shaft, and the other end of the washing output component is connected with the input component;

the dehydration output part is meshed with the washing output part;

the washing shaft and the dewatering shaft sleeve are respectively connected with a washing and dewatering executing component of the washing machine, and the dewatering shaft sleeve is arranged outside the washing shaft and is in rotary connection with the washing shaft.

In the present invention, the power component used for providing rotational kinetic energy is a motor rotor or a belt pulley, and the motor rotor may be an inner rotor of a motor or an outer rotor of a motor. However, it should be understood that, according to the technical solutions described in the embodiments of the present invention, a person skilled in the art can completely substitute the motor outer rotor or the pulley for the motor inner rotor described in the embodiments, and when the corresponding substitution is performed, the structure of the present invention is not changed accordingly, which is not novel.

The present invention can use various motors such as a synchronous motor, an asynchronous motor, a servo motor, a PSC motor, a BLDC motor, etc.

The inner rotor of the motor rotates around an axis positioned in the center of the motor to provide rotational kinetic energy, a speed reducing mechanism for performing variable speed processing on the output rotational speed of the inner rotor is arranged in the inner rotor, the speed reducing mechanism is connected with the inner rotor, so the speed reducing mechanism obtains the rotational kinetic energy in the process of rotating the inner rotor around the axis, and as an eccentric sleeve connected with the inner rotor in the speed reducing mechanism performs eccentric rotation around the axis of the inner rotor, other parts in the speed reducing mechanism are driven to perform eccentric rotation around the axis of the inner rotor, and the power after the eccentric rotation is converted into power with the rotational speed equal to or lower than the rotational speed of the inner rotor for output. Because the speed reducing mechanism is connected with the washing shaft, one end of the washing shaft is connected with a washing executing component (such as a wave wheel or a stirrer, which is not described in detail below) (not shown in the figure) of the washing machine, and a dewatering shaft sleeve 20 which is rotatably connected with the washing shaft is sleeved outside the washing shaft and is connected with the dewatering executing component (such as an inner barrel, not shown in the figure) of the washing machine, under the action of the power output by the speed reducing mechanism, the washing shaft and the dewatering shaft sleeve respectively supply the power which is equal to or lower than the rotating speed of the inner rotor to the corresponding executing component, so that the washing machine provided with the washing machine driving mechanism of the invention can complete the washing function.

In the present invention, as shown in fig. 23, 1 and 7, a stator 2 is disposed inside a housing assembly 1, and an inner rotor 3 for providing rotational kinetic energy is disposed inside the stator 2. The inner rotor of the present invention includes a driving frame 31 and a cavity 32 provided inside the driving frame, so that the rotation speed of the inner rotor is the rotation speed of the driving frame, and the rotation axis of the driving frame is the symmetry axis thereof. The speed reducing mechanism is arranged in a cavity in the driving frame and is provided with an input part, a dehydration output part and a washing output part, specifically, the input part is an eccentric sleeve 4 which is arranged in the cavity, is connected with the driving frame 31 and rotates around the axis of the driving frame, and is driven by the driving frame to rotate at the same speed as the driving frame; the washing output part includes: the spur gear 6 is sleeved outside the eccentric sleeve and forms a rotary connection with the eccentric sleeve, and revolves around the axis of the driving frame along with the rotation of the eccentric sleeve, wherein the spur gear is connected with the washing shaft 5 through a connecting device so as to transmit the power generated by the rotation of the spur gear to the washing shaft; the dehydration output part is an inner gear ring 7 connected with a dehydration shaft sleeve 20, a spur gear is arranged in the dehydration output part, so that the spur gear is meshed with the inner gear of the inner gear ring during revolution to generate autorotation, and the inner gear ring also rotates correspondingly in the process of being meshed with the spur gear and transmits power to the dehydration shaft sleeve; in addition, the invention also comprises a clutch device for controlling the conversion of the washing and dehydration working conditions of the washing machine, which is arranged in the shell component and is sleeved on the outer wall of the inner gear ring in an axial sliding manner, and the clutch device is clamped and connected with a latch arranged at one end of the driving frame or separated from the latch through axial sliding, so that the rotating speed output by the speed reducing mechanism is equal to or lower than the rotating speed of the driving frame, namely the washing working condition when the rotating speed is lower than the rotating speed of the driving frame, and namely the dehydration working condition of high-speed rotation when the rotating speed is equal to the rotating.

In the reduction gear mechanism of the present invention, the spur gear is connected to the washing shaft by the connecting means, but the connecting means of the present invention has a different configuration, and the following description will be made in detail with reference to specific embodiments 1 and 2.

Example 1

As shown in fig. 1 and 2, the connecting device in the driving mechanism of a washing machine according to the present invention is a structural schematic diagram of a slider structure.

As shown in fig. 1, the motor of the present embodiment is an inner rotor motor. Wherein, the housing assembly 1 includes: the rotor comprises a cylindrical shell 11 with two open ends, a motor end cover 12 connected with the bottom end of the shell 11, and a mounting disc 14 which is positioned at the top end of the shell and connected with the motor end cover 12 through a motor bolt 13, wherein the shell 11, the motor end cover 12 and the mounting disc 14 enclose an inner space for accommodating other parts such as a stator 2, an inner rotor 3 and the like.

The inner rotor 3 of the present embodiment includes a drive frame 31 and a cavity 32 provided inside the drive frame, and a latch 33 is provided on a top end surface of the drive frame. Specifically, as shown in fig. 1 and 20, the driving rack of the present embodiment includes a cylindrical rotor 34 and a rotor insert 35 located in the rotor, where the rotor insert includes: a cylinder 351 with two open ends, the top end of which is provided with a latch 33 extending upwards; a base 352 at the bottom of the cylinder, and a base through hole is formed in the center of the base. The cylinder in the rotor insert and the base together form a cavity 32 for housing the reduction mechanism, while the washing shaft passes through the center of the through hole of the base, so that the drive rack rotates with the same rotation axis as the washing shaft, i.e. the rotation axis of the drive rack coincides with the rotation axis of the washing shaft.

In the present embodiment, as shown in fig. 2, a speed reduction mechanism including an eccentric sleeve 4, a spur gear 6, an internal gear 7, and a connecting device 8 is disposed in the cavity of the inner rotor.

Wherein, the eccentric sleeve in the speed reducing mechanism is fixedly connected with the driving frame 31, and the eccentric sleeve rotates around the rotating shaft of the driving frame. As shown in fig. 6, the eccentric sleeve includes a second sleeve body rotating coaxially with the driving rack and a first sleeve body rotating eccentrically with the driving rack, wherein the second sleeve body and the first sleeve body may be fixedly connected in a split manner or in an integrated manner, for convenience of processing or installation, preferably, as shown in fig. 2, the second sleeve body is a second sleeve body 43, the first sleeve body includes an eccentric connecting member 41 connected to a top end of the second sleeve body and a first sleeve body 42 connected to a top end of the eccentric connecting member, wherein the eccentric connecting member 41 has an outer extension edge extending outward relative to the first sleeve body 42, and an eccentric sleeve through hole 44 for passing through the washing shaft is provided in the second sleeve body 43, and the eccentric sleeve through hole extends upward to penetrate through the eccentric connecting member and the first sleeve body.

When the eccentric sleeve is processed, the first sleeve body, the eccentric connecting piece and the second sleeve body can be integrally formed or connected into a whole by welding and the like, in addition, a certain eccentric distance is required to be arranged between the central line of the first sleeve body and the central line of the second sleeve body during processing, and the eccentric distance can be the difference between the radius of the spur gear and the radius of the inner gear ring.

In this embodiment, the fixed connection between the eccentric sleeve 4 and the driving frame 31 is a rigid connection for facilitating the transmission of the rotation torque, and during processing, the eccentric sleeve and the driving frame may be fixedly connected in an integrated manner, or may be fixedly connected in a split manner, such as by screws, welding, or the like. The preferable specific mode is as follows: the cylindrical rotor 34 is made of metal, the eccentric sleeve 4 is made of metal, the cylindrical rotor 34 and the cylindrical eccentric sleeve 4 are placed in an injection mold or a die-casting mold, and the rotor and the eccentric sleeve are directly installed on the rotor insert 35 through injection molding or die-casting molding; more preferably, the eccentric sleeve 4 may be provided with a plurality of recesses (4 in fig. 2) or flanges on the outer side of the outer extension 411 of the eccentric connecting member 41, so as to increase the combining force between the eccentric sleeve 4 and the driving frame 31 during injection molding or die casting, thereby facilitating the rigid fixing connection between the eccentric sleeve 4 and the driving frame 31.

When the driving frame rotates, the eccentric sleeve fixedly connected in the through hole of the rotor insert base of the driving frame through the second sleeve body also rotates coaxially and at the same speed, so that the spur gear rotationally connected with the first sleeve body 42 in the eccentric sleeve is driven to correspondingly rotate.

As shown in fig. 5, the spur gear 6 of the present embodiment includes a steel ring 63 and external teeth 60 located outside the steel ring and injection-molded integrally therewith, and the upper end surface of the spur gear is further provided with a pair of diametrically opposed gear grooves 62. Wherein, the first sleeve body rotation connection in steel ring and the eccentric cover, the concrete mode is: the outer wall of the first sleeve body 42 is connected with the inner ring of the oil-containing bearing 100 in an interference fit manner, the upper end part of the extension edge of the eccentric connecting piece is connected with the lower end part of the extension edge of the oil-containing bearing 100 in a contact manner, and the outer ring of the oil-containing bearing 100 is connected with the inner wall of the spur gear in a clearance fit manner in a contact manner; alternatively, the outer wall of the first sleeve body 42 may be connected with the inner ring of the oil-retaining bearing 100 in a clearance fit manner, the upper end of the outer extension edge of the eccentric connecting piece is connected with the lower end of the outer extension edge of the oil-retaining bearing 100 in a contact manner, and the outer ring of the oil-retaining bearing 100 is connected with the inner wall of the spur gear in an interference fit manner. Of course, it is also possible to use powder metallurgy directly for the spur gear 6, avoiding the above-mentioned steel ring injection-molded structure.

Of course, to achieve the relative rotational connection between the eccentric sleeve 4 and the spur gear, the following specific methods can be adopted: the structure of the eccentric sleeve 4 is improved, for example, powder metallurgy materials are adopted, so that the eccentric sleeve 4 has the function of the oil-containing bearing 100, the independent use of the oil-containing bearing 100 is avoided, and the steel ring is rotatably connected with the eccentric sleeve with the oil-containing bearing function.

Preferably, a plurality of material reducing grooves are formed in the first sleeve 42 to reduce the manufacturing cost, and a proper amount of material with a lubricating function, such as lubricating oil and oil cotton, can be added into the material reducing grooves to increase the service life of the eccentric sleeve.

When the eccentric sleeve rotates, the spur gear rotationally connected with the first sleeve body on the eccentric sleeve revolves in the same rotating direction with the eccentric sleeve under the driving of the spur gear, and because the distance between the center lines of the first sleeve body and the second sleeve body in the eccentric sleeve has a certain eccentric distance, and the rotating axis of the first sleeve body is superposed with the axis of the driving frame, when the spur gear revolves, the spur gear actually eccentrically rotates around the axis of the driving frame.

In the revolution process, the spur gear can transmit the rotation power to the inner gear ring because the outer gear of the spur gear is meshed with the inner gear ring. The ring gear of the present embodiment is a metal or plastic connecting member, and in order to save manufacturing costs, it is preferable that the ring gear is an integrally injection-molded member including an upper connecting member 71 and a lower connecting member 72 provided at a lower end thereof and connected thereto. As shown in fig. 21 and 22, the upper connecting member is a housing, the outer wall of which is provided with external splines 711 distributed along the axial direction thereof, and the inner wall of which is provided with a plurality of convex grooves 712 distributed along the axial direction thereof; the lower connecting piece 72 is a cylindrical structure, the top end of the lower connecting piece is fixedly connected with the upper connecting piece, the inner wall of the lower connecting piece is embedded with inner teeth 721, a plurality of reinforcing ribs 723 are arranged at the connecting positions of the lower connecting piece and the upper connecting piece, and a plurality of perforated bosses 722 for arranging the springs 200 are arranged between the adjacent reinforcing ribs 723.

As shown in fig. 12, the plurality of convex grooves in the upper connecting member are matched with the plurality of sleeve grooves 201 on the outer wall of the dewatering sleeve, so as to fixedly connect the inner gear ring and the dewatering sleeve into a whole, and in addition, the metal connecting member can be rigidly connected with the dewatering sleeve by laser welding or other methods, in this embodiment, the inner teeth 721 on the inner wall of the lower connecting member 72 can be made of plastic, or metal.

When the spur gear revolves (namely eccentrically rotates around the axis of the driving frame), the outer teeth of the spur gear are meshed with the inner teeth of the inner gear ring, so that the spur gear rotates under the mutual acting force of the meshing of the gears, the rotating direction of the spur gear is opposite to the revolving direction of the spur gear, and simultaneously, because the tooth difference relationship exists between the outer teeth of the spur gear and the inner teeth of the inner gear ring, the spur gear generates a speed difference between the rotation and the revolution, namely the speed of the spur gear is lower than that of the inner gear ring, so that the output rotating speed of the spur gear is lower than that of the driving frame. Correspondingly, due to the interaction force between the inner gear ring and the spur gear, the inner gear ring can rotate when the spur gear rotates, only the rotation direction of the inner gear ring is opposite to the rotation direction of the spur gear, namely the rotation direction of the inner gear ring is the same as the rotation direction of the driving frame, and the rotation speed of the inner gear ring is lower than that of the driving frame.

In conclusion, the spur gear simultaneously performs revolution and rotation under the comprehensive acting force of the rotating eccentric sleeve and the inner gear ring meshed with the rotating eccentric sleeve through the gear, the rotation direction of the spur gear is opposite to the revolution direction, and the rotation speed is lower than that of the driving frame; and the inner gear ring also performs rotary motion which is opposite to the rotation direction of the spur gear and is lower than the rotating speed of the driving frame under the action of corresponding acting force.

When the spur gear rotates at a low speed, the spur gear transmits power to the washing shaft through the slider structure. The slider structure of this embodiment includes: a cross slide block 85 passing through the washing shaft, the lower end face of which is connected with the upper end face of the spur gear in a sliding way; and the center of the positioning slide block 86 is fixedly connected with the washing shaft. Wherein, as shown in fig. 4, the crosshead shoe includes: a disc body 851 having a center passing through the washing shaft; a pair of lower bosses 852 respectively arranged on the lower end surface of the disc body and opposite to each other in the radial direction; a pair of upper bosses 853 which are respectively arranged on the upper end surface of the disc body and are opposite in the radial direction, and the extension lines of the upper bosses and the extension lines of the lower bosses are distributed in a spatial cross way. As shown in fig. 3, the positioning slider includes: a cylindrical slider body 861, the center of which is fixedly connected with the washing shaft; a pair of ear plates 862 arranged at both sides of the slider body and extending along the radial direction opposite to each other, on which grooves 863 matching with the pair of upper bosses are respectively arranged. Preferably, the upper end surface of the spur gear is provided with a pair of diametrically opposite gear grooves corresponding to the positions of the pair of lower bosses.

Specifically, as shown in fig. 5, in the present embodiment, a pair of lower bosses in the oldham slide 85 are respectively disposed in a pair of gear grooves 62 on the upper end surface of the spur gear, and the pair of lower bosses can respectively slide in a pair of gear grooves corresponding to the positions thereof; a pair of upper bosses in the crosshead shoe 85 are respectively arranged in a pair of grooves 863 on the lower surface of the positioning shoe, and the pair of upper bosses can respectively slide in the pair of grooves; the center of the slide block body of the positioning slide block is fixedly connected with the washing shaft, so that the center line of the positioning slide block is superposed with the center line of the washing shaft.

When the spur gear rotates at a low speed, the pair of gear grooves 62 on the spur gear rotate at the same speed and in the same direction, so that the pair of lower bosses 852 arranged in the pair of gear grooves are driven to rotate along with the spur gear, that is, the crosshead shoe rotates integrally along with the spur gear, and under the action of centrifugal force, the pair of lower bosses and the pair of upper bosses on the crosshead shoe slide in the radial direction in the pair of gear grooves and the pair of grooves 863, respectively, and the sliding process is a moving process from the direction of the spur gear axis 40 to the direction of the washing shaft axis 50. Because a pair of boss slip is settled in a pair of recess 863 of location slider on a pair of in the crosshead shoe, consequently go up the boss and drive the recess rotation when rotatory, drive the location slider rotation promptly, because the center and the washing axle of location slider link firmly to drive the washing axle along with it and carry out with spur gear syntropy, with fast rotary motion when the location slider is rotatory.

As can be seen from fig. 2 and 24, when the spur gear rotates eccentrically around the axis of the washing shaft, the power generated by the rotation of the spur gear around the axis 40 of the spur gear when the spur gear rotates on its own axis can be converted into the power for rotating the washing shaft around the axis 50 of the washing shaft (i.e., the axis of the drive rack) by the slider structure, that is, the output of the eccentric rotation of the spur gear around the axis of the washing shaft is converted into the output coaxial with the axis of the washing shaft.

Because the washing machine has different washing working conditions during operation, the output speed of the speed reducing mechanism needs to be adjusted according to different requirements of the washing working conditions, for example, the output speed of the speed reducing mechanism needs to be low speed during washing, and the output speed of the speed reducing mechanism needs to be high speed during dewatering. Therefore, in this embodiment, the driving mechanism of the washing machine further includes a clutch device 9, which is disposed in the internal cavity formed by the housing assembly and axially slidably sleeved on the outer wall of the inner gear ring, and is engaged with or disengaged from the latch 33 disposed on one end surface of the driving frame, so that the speed reducing mechanism performs high-speed or low-speed movement, thereby realizing the operating mode conversion of the washing machine.

Specifically, the clutch device in this embodiment is an electromagnetic clutch device, which includes a solenoid mechanism fixed in the housing assembly and a clutch ring gear 91, and the solenoid mechanism is disposed outside the clutch ring gear.

The solenoid mechanism includes a solenoid 92, a bobbin 93, and a coil holder 94. The coil holder is fixedly mounted on a mounting plate 14 in the housing assembly, the bobbin is mounted within the coil holder, and the solenoid is wound on the bobbin.

Wherein, separation and reunion ring gear 91 includes upper end connecting portion and lower extreme connecting portion, and upper end connecting portion and lower extreme connecting portion can be split type fixed connection, also can be integral type fixed connection. For convenience of processing or installation, preferably, as shown in fig. 13, the upper end connecting part is a cylindrical structure, the inner wall of the upper end connecting part is provided with an internal spline 911, the outer wall of the upper end connecting part is provided with a magnetic conductive iron ring 912 which is integrally injection-molded with the internal spline 911, the internal spline 911 is in sliding fit with an external spline 711 on the outer wall of the inner gear ring, and the magnetic conductive iron ring is matched with the electromagnetic coil and can be far away from the electromagnetic coil under the magnetic force action of the; the bottom end surface of the lower end connecting part is provided with a plurality of convex teeth distributed at intervals, a tooth groove 913 is formed between every two adjacent convex teeth, the tooth groove 913 is matched with the clamping tooth 33 arranged on one end surface of the driving frame, and preferably, a plurality of material reducing grooves (shown and not marked) are arranged at the periphery of the lower end connecting part so as to reduce the production and manufacturing cost. Preferably, the shape of the latch 33 and the teeth may be slanted in order to ensure a firm engagement between the clutch ring gear and the drive carrier.

When the electromagnetic coil is electrified, the magnetic conductive iron ring moves downwards to be away from the electromagnetic coil under the action of magnetic field repulsion of the electromagnetic coil, and the magnetic conductive iron ring is fixedly connected with the upper end connecting part of the clutch gear ring, so that the whole clutch gear ring 91 slides downwards along the outer wall of the inner gear ring and reaches the second positioning position of the inner gear ring under the driving of the magnetic conductive iron ring, and the tooth socket of the lower end connecting part of the clutch gear ring is meshed and connected with the latch on the driving frame, therefore, the inner gear ring obtains the same rotating speed as the driving frame, and the speed reducing mechanism is in a locking state, namely the dewatering working condition of the washing; on the contrary, when the electromagnetic coil is powered off, the clutch gear ring slides upwards along the outer wall of the inner gear ring and reaches the first positioning position under the action of the restoring force of the spring arranged on the inner gear ring, at the moment, the tooth groove of the lower end connecting part is separated from the latch on the driving frame, and the speed reducing mechanism is further enabled to enter a working state, namely the washing working condition of the washing machine.

The operation of the washing machine with the driving mechanism of the washing machine of the present embodiment under the washing and dehydrating conditions will be described in detail.

When washing the washings, solenoid outage this moment, the closed magnetic circuit that forms between solenoid and the separation and reunion ring gear disappears, and the separation and reunion ring gear no longer receives the effect of electromagnetic repulsion, consequently under the effect of spring restoring force, separation and reunion ring gear along ring gear outer wall rebound to the messenger sets up a plurality of tooth's sockets and the latch of drive frame one end at separation and reunion ring gear lower extreme connecting portion and breaks away from, and then makes reduction gears get into operating condition:

as shown in fig. 24, when the driving rack rotates around the driving rack axis (i.e. the washing shaft axis 50 shown in fig. 24, which is hereinafter referred to as the washing shaft axis for convenience of description) in the counterclockwise direction shown in fig. 24, the eccentric sleeve 4 fixedly connected therewith is driven to rotate around the washing shaft axis at the same speed as the washing shaft axis in the counterclockwise direction, and the rotation of the eccentric sleeve drives the spur gear to perform eccentric revolution around the washing shaft axis, and during the revolution of the spur gear, the external teeth of the spur gear mesh with the internal teeth of the internal gear ring to generate mutual acting force, so that the spur gear rotates around the spur gear axis 40 in the opposite direction to the rotation direction of the eccentric sleeve, as shown in fig. 24, and the rotation direction of the spur gear is clockwise direction, and the rotation speed of the spur gear is lower than the rotation speed of the driving rack.

In the process that the spur gear is meshed with the inner gear ring to generate autorotation, the inner gear ring rotates under the action of the inner gear ring, and because the tooth difference exists between the inner teeth of the inner gear ring and the outer teeth of the spur gear, the inner gear ring rotates at a low speed in the direction opposite to the rotation direction of the spur gear, such as the anticlockwise direction shown in fig. 24. In addition, a slider structure in a reduction mechanism is also provided along with the rotation of the spur gear. When the spur gear rotates clockwise around the axis of the spur gear at a speed lower than that of the driving rack, the spur gear transmits power to a pair of lower bosses 852 slidably disposed in the pair of gear grooves through a pair of gear grooves 62 formed thereon, so that the cross slider rotates clockwise along with the spur gear, and further drives the positioning slider slidably connected with the pair of upper bosses on the cross slider through a pair of grooves 863 to rotate clockwise, and since the center of the positioning slider is fixedly connected with the washing shaft, the washing shaft is driven to rotate clockwise along with the positioning slider when the positioning slider rotates clockwise, as shown by an innermost arrow in fig. 24.

As can be seen from fig. 24, in the washing condition, when the driving frame rotates at a high rotation speed, the speed reducing mechanism of the embodiment can make the dewatering hub connected with the inner gear ring and the pulsator connected with the washing shaft move at a low speed lower than the rotation speed of the driving frame in the opposite direction, thereby solving the problem that the dewatering hub needs to be fixed and a large amount of energy needs to be consumed in washing in the prior art.

When the washings are dehydrated, the electromagnetic coil in the clutch device is electrified, the electromagnetic coil interacts with the magnetic conductive iron ring 912 arranged on the outer side of the clutch gear ring to form a closed magnetic circuit, the clutch gear ring slides downwards along the outer wall of the inner gear ring (in a downward direction in figure 1) under the action of electromagnetic repulsion force, the clutch gear ring compresses a spring arranged in the inner gear ring in the sliding process, and a plurality of tooth grooves arranged at the connecting part at the lower end of the clutch gear ring are connected with the latch at one end of the driving frame in a clamping way, so that the clutch gear ring is connected with the driving frame into a whole, the dehydration shaft sleeve is connected with the driving frame into a whole, the speed reducing mechanism does not work any more, but the whole is rotated with the motor at high speed, and the washings are dehydrated.

Naturally, by changing the related components of the speed reducing mechanism, if the connection device is used, the washing shaft with the same rotation direction as the driving frame can be obtained, and the rotation direction of the dewatering shaft sleeve is opposite to that of the driving frame.

The embodiment is through settling reduction gears in the inner rotor to effectively utilize the inner space of inner rotor, reduced washing machine's volume, do benefit to washing machine's miniaturized production, and, in this embodiment, adopt slider structure with spur gear and washing shaft connection, thereby turn into the eccentric output of spur gear around washing shaft axis into with the coaxial output of washing shaft axis, avoid reduction gears to produce unnecessary vibration in the course of the work.

Example 2

Fig. 7 and 8 are schematic structural views of a washing machine driving mechanism using a connection disc structure according to the present invention.

As can be seen from fig. 7, the motor of the present embodiment is also an inner rotor motor. Wherein an inner rotor with a cavity is arranged in the housing assembly, and a speed reducing mechanism is arranged in the cavity of the inner rotor, the speed reducing mechanism comprises an eccentric sleeve 4, a spur gear 6, an inner gear ring 7 and a connecting device 8, and in the embodiment, the connecting device adopts a connecting disc structure.

In this embodiment, the inner rotor motor, the housing assembly, the clutch device, and the eccentric sleeve and the ring gear in the speed reducing mechanism are the same as those in embodiment 1, and will not be described again, and only the structures of the connecting device and the spur gear connected to the connecting device will be described correspondingly.

As shown in fig. 11, the spur gear 6 in the present embodiment includes a steel ring 63 and external teeth 60 located outside the steel ring and injection-molded integrally therewith, and connection shaft holes 61 for accommodating a plurality of connection shafts 83 are evenly distributed on the circumference of the steel ring. Wherein, the steel ring is connected with the first sleeve body in the eccentric sleeve in a rotating way, the specific connection mode is the same as that of the embodiment 1, and the description is not repeated.

The connecting disc structure in the embodiment comprises a connecting disc and a plurality of connecting shafts which are in sliding contact with the connecting disc and drive the connecting disc to rotate through friction force. Specifically, as shown in fig. 8, 9 and 10, the connection pad has a disc-shaped connection pad body 81, the center of which penetrates through the washing shaft and is fixedly connected with the washing shaft, in order to enhance the connection with the washing shaft, a cylinder 84 is fixedly arranged in the middle of the upper end surface of the connection pad body, and is fixedly connected with the washing shaft through a tooth profile arranged on the inner wall of the cylinder. During manufacturing, the connecting disc body and the cylinder are integrally formed, or are connected into a whole in a welding mode. A plurality of through holes 82 are uniformly distributed on the circumference of the connecting disc body, and a plurality of connecting shafts are respectively arranged in each through hole and are in sliding contact with the through holes. Specifically, one end of each connecting shaft is arranged in a through hole of the connecting disc body and slides along the inner wall of the through hole, and the other end of each connecting shaft is fixedly arranged in a connecting shaft hole of the spur gear. In this embodiment, the number of the through holes and the connecting shafts on the connecting disc body is six, and the inner diameter of the through hole is larger than the outer diameter of the connecting shaft. When the connecting disc is installed, the other ends of the six connecting shafts are fixedly arranged in the six connecting shaft holes of the spur gear respectively, one ends of the six connecting shafts are arranged in the six through holes of the connecting disc body respectively, and meanwhile, the outer surfaces of the six connecting shafts are ensured to be tangent to the inner walls of the six through holes corresponding to the positions of the six connecting shafts.

The speed reduction mechanism in the present embodiment transmits the rotational power of the inner rotor by the following movement.

When the electromagnetic coil in the clutch device is powered off, the washing machine enters a washing state: at this moment, the closed magnetic circuit formed between the electromagnetic coil and the clutch gear ring disappears, and the clutch gear ring is not acted by electromagnetic repulsion force any more, so under the action of spring restoring force, the clutch gear ring moves upwards along the outer wall of the inner gear ring, so that a plurality of tooth sockets arranged on the connecting part at the lower end of the clutch gear ring are separated from the latch at one end of the driving frame, and then the speed reducing mechanism enters the following working state:

In the process that the spur gear is meshed with the inner gear ring to generate autorotation, the inner gear ring rotates under the action of the inner gear ring, and because the tooth difference exists between the inner teeth of the inner gear ring and the outer teeth of the spur gear, the inner gear ring rotates at a low speed in the direction opposite to the rotation direction of the spur gear, such as the anticlockwise direction shown in fig. 24. In addition, in the reduction mechanism, the connection disc structure rotates along with the rotation of the spur gear, drives the washing shaft to rotate in the same speed and direction as the spur gear, and converts the eccentric output generated by the eccentric rotation of the spur gear around the axis of the washing shaft into the output along the axis of the washing shaft.

Specifically, in the eccentric rotation process of the spur gear, six connecting shafts fixedly arranged in six connecting shaft holes of the spur gear rotate synchronously with the spur gear, the other ends of the six connecting shafts abut against the inner walls of six through holes of the connecting disc body and do circular motion on the inner walls of the six through holes, so that the six connecting shafts jointly push the connecting disc body and enable the connecting disc body to rotate synchronously along with the rotation of the spur gear, and a cylinder on the upper end face of the connecting disc body is fixedly connected with the washing shaft, so that the washing shaft can be driven to rotate synchronously when the connecting disc body rotates, and the output deviating from the axis direction of the washing shaft generated in the eccentric rotation of the spur gear is converted into the output in the same direction as the axis of the washing shaft.

When the electromagnetic coil in the clutch device is electrified, the washing machine enters a dehydration state: at the moment, the electromagnetic coil interacts with the magnetic conductive iron ring 912 arranged on the outer side of the clutch gear ring to form a closed magnetic circuit, the clutch gear ring slides downwards along the outer wall of the inner gear ring under the action of electromagnetic repulsion force (downwards in the figure 1), the clutch gear ring compresses a spring arranged in the inner gear ring in the sliding process, a plurality of tooth grooves arranged on the connecting part at the lower end of the clutch gear ring are connected with the latch at one end of the driving frame in a clamping way, so that the clutch gear ring is connected with the driving frame into a whole, and further the dehydration shaft sleeve is connected with the driving frame into a whole, so that the clutch gear ring is connected with the driving frame into a whole, and further the speed reducing mechanism does not work continuously, but becomes a whole to rotate at high speed together with the motor, and the washing is dehydrated.

Other components not mentioned in the present embodiment are the same as those in embodiment 1, and the operation principle is the same, and will not be described again here.

Embodiment 3 this embodiment 3 is a further preferred embodiment of embodiment 1 and embodiment 2, and in order to improve the washing effect, this embodiment provides a washing method using a magnetic damper and a driving mechanism of a washing machine using the same.

The washing method of the embodiment further includes, based on the content of the washing method, the steps of: the outer part of the dehydration shaft sleeve is provided with a magnetic damper, and the magnetic damper can generate damping force to the dehydration shaft sleeve, so that the rotation speed of the dehydration shaft sleeve is equal to or less than that of the washing shaft, and the washing effect is ensured.

The washing machine driving mechanism of the embodiment further includes, based on the content of the washing machine driving mechanism: the outer part of the dehydration shaft sleeve is provided with a magnetic damper, and the magnetic damper can generate damping force to the dehydration shaft sleeve.

As can be seen from fig. 14, the motor of the present embodiment is also an inner rotor motor. An inner rotor with a cavity is arranged in the housing component, and a speed reduction mechanism is arranged in the cavity of the inner rotor, wherein the speed reduction mechanism comprises an eccentric sleeve 4, a spur gear 6, an inner gear ring 7 and a connecting device 8.

In this embodiment, the inner rotor motor, the housing assembly and the eccentric sleeve, the spur gear, the ring gear and the connecting device in the speed reducing mechanism are the same as those in embodiment 2, and will not be described again, and only the magnetic damper, the clutch device connected thereto and the (washing machine) driving mechanism to which the magnetic damper is applied will be described in detail.

Referring to fig. 14 to 18 and 25, the magnetic damper may be a hysteresis damper connected to a rotating member, and includes: a permanent magnet; the magnetic conduction component is magnetically coupled with the permanent magnet and is fixedly connected with the rotating component; the permanent magnet enables the magnetic conduction component to be in an alternating magnetization state to generate damping force on the rotating component, so that the rotating speed or torque of the rotating component is reduced; specifically, the permanent magnet comprises a permanent magnet body and a permanent magnet retainer, wherein the permanent magnet body is fixedly arranged on the permanent magnet retainer; the permanent magnet body is provided with a plurality of permanent magnet steel magnets which are respectively and fixedly arranged on the permanent magnet retainer at intervals; the magnetic conduction component is made of soft magnetic materials.

Referring to fig. 14-18 and 25, when the hysteresis damper is applied to a drive mechanism, the permanent magnet holder may be fixed to a housing assembly of the drive mechanism. Hysteresis quality attenuator can also regard as brake mechanism simultaneously: the magnetic conducting component and the rotating component can be selectively and fixedly connected, when the rotating component rotates at a high speed, the magnetic conducting component and the rotating component are fixedly connected, and the magnetic hysteresis damper enables the rotating speed or the torque of the rotating component to be reduced, so that the brake function of the driving mechanism is realized; meanwhile, the driving mechanism works through the clutch switching device to realize the switching between the fixed connection state and the disconnection state of the magnetic conduction component and the rotating component, and further realize the selective fixed connection of the magnetic conduction component and the rotating component.

As shown in fig. 14-15, when the hysteresis damper 15 is applied to the washing machine driving mechanism according to embodiment 2 to obtain a washing machine driving mechanism with a magnetic damper application, the rotating body is a dewatering shaft sleeve 20 of the washing machine, and the magnetic conductive part of the hysteresis damper is selectively and fixedly connected with the dewatering shaft sleeve; and in a washing working condition, the rotating speeds of the washing shaft 5 and the dewatering shaft sleeve 20 change along with the change of the washing load, the magnetic conduction component is fixedly connected with the dewatering shaft sleeve, and the hysteresis damper generates damping force on the dewatering shaft sleeve, so that the rotating speed of the dewatering shaft sleeve is equal to or less than that of the washing shaft.

The structure and the installation relationship of the hysteresis damper 15 are as follows: the magnetic hysteresis damper 15 is installed inside the shell assembly, the permanent magnet 151 is fixed at the lower end of the installation disk 14 and is positioned at the periphery of the magnetic conductive part 152, the magnetic coupling is carried out between the permanent magnet and the magnetic conductive part 152 to generate magnetic hysteresis acting force, also called damping force in the invention, and the magnetic conductive part 152 is installed and connected with the clutch device 9 to realize selective fixed connection with the dehydration shaft sleeve;

more specifically, as shown in fig. 15-18 and 25, the permanent magnet 151 includes 4 permanent magnet holders 151-1 (shown in the figure) and 2 permanent magnet steels 151-2, the number of the permanent magnet holders may be greater than 4, or may be directly added into an integral piece, each permanent magnet holder is provided with 2 permanent magnet steels, the permanent magnet holder is fixed at the lower end of the mounting plate 14 by a screw 150, for the convenience of installation, the outer side surface of the permanent magnet holder 151-1 is inclined, and is provided with a reinforcing and reducing groove, which may be specifically shown in fig. 15; the magnetic conducting component 152 is made of soft magnetic material, and steel or iron material can be selected specifically; in order to facilitate installation and insulation function consideration between installation components, the magnetic conducting component 152 is formed by embedding a magnetic conducting component body 152-1 and an injection molding installation component 152-2, the magnetic conducting component body 152-1 is embedded into the outer side of the injection molding installation component 152-2, and a concrete embedding structure is mainly in tooth socket embedding so as to increase the binding force between the two, which can be seen in fig. 17 and 18 specifically; the magnetic conduction part body and the permanent magnet steel are magnetically coupled, the injection molding installation part is installed and connected with the clutch device, and the magnetic conduction part body and the permanent magnet steel can be directly formed into the injection molding installation part by injection molding through the specific preparation process.

The clutch device in this embodiment is also an electromagnetic clutch device, which includes a solenoid mechanism fixed within the housing assembly and a clutch ring gear 91, and the solenoid mechanism is disposed outside the clutch ring gear.

The solenoid mechanism includes a solenoid 92, a bobbin 93, and a coil holder 94. The coil holder is fixedly arranged on a mounting disc 14 in the shell component, the coil holder is arranged in the coil holder, the electromagnetic coil is wound on the coil holder, and an insulating protective sleeve 95 is further arranged in the coil holder and on the periphery of the coil holder to ensure the insulating function of the electromagnetic coil to the coil holder. The wire frame 93 and the insulating protective sleeve 95 are made of insulating materials, and can be made of resin materials; the injection molding mounting piece 152-2 is sleeved outside the coil holder 94 in a clearance fit manner, in order to axially limit the magnetic conductive member 152, a baffle 153 is fixedly arranged at the upper end of the injection molding mounting piece, the baffle 153 is positioned below the end of the coil holder 94, specifically, a step is arranged outside the upper end of the injection molding mounting piece, the baffle 153 is fixedly arranged on a step surface 155 of the injection molding mounting piece through a fastener (such as a screw), and the specific shape and structure of the injection molding mounting piece can be seen in fig. 15, 17 and 18.

As shown in fig. 19, the clutch ring gear 91 includes an upper end connecting portion and a lower end connecting portion, and the upper end connecting portion and the lower end connecting portion may be fixedly connected in a split manner or in an integral manner. The structure of the clutch ring gear 91 is the same as that described in embodiment 1 except that the following structures are added, and therefore, detailed description is not repeated:

in order to realize the selective fixed connection of the magnetic conductive component and the dehydration shaft sleeve, a plurality of clamping grooves 154 distributed at intervals are arranged on the inner side wall of the lower end of the injection molding mounting piece 152-2, the number of the clamping grooves is 6-14, the clamping grooves 154 are also formed by a plurality of convex teeth distributed at intervals, the upper end face of the bottom of the connecting part at the lower end of the clutch gear ring 91 is provided with an upper clamping tooth 914 matched with the clamping grooves, and the upper clamping tooth of the clutch gear ring is in tooth-groove fit with the clamping grooves in the washing working condition to realize the fixed connection of the magnetic conductive component and the dehydration shaft sleeve; and under the dehydration working condition, the upper latch of the clutch gear ring is separated from the clamping groove.

In order to realize real-time detection of the rotation speed of the washing shaft, the present embodiment is further provided with a speed measurement mechanism, which specifically includes a hall assembly 16 fixed at the upper end of the coil holder, and a magnetic ring assembly 17 closely coupled with the hall assembly, where the magnetic ring assembly includes a magnetic ring body and is fixedly disposed on the washing shaft by injection molding.

Meanwhile, in order to ensure the waterproof function of the speed reducing mechanism, a sealing ring 18 is arranged between the internal gear ring and the driving frame in the embodiment; in order to facilitate heat dissipation and material reduction, a plurality of heat dissipation holes 110 are arranged on the housing 11 at intervals; in order to reduce the noise generated by the spur gear during operation and to improve the service life, the embodiment is provided with a roller 831 fitted on the connecting shaft 83 of the connecting device.

Of course, the magnetic damper of the present invention may also be an electromagnetic damper (not shown), including: an electromagnetic coil assembly; the magnetic conduction component is magnetically coupled with the electromagnetic coil assembly and is rotatably and fixedly connected with the dehydration shaft sleeve; and under the washing working condition, the magnetic conduction component is fixedly connected with the dehydration shaft sleeve, and the electromagnetic damper generates damping force on the dehydration shaft sleeve, so that the rotation speed of the dehydration shaft sleeve is equal to or less than that of the washing shaft. The specific structure and installation relationship of the electromagnetic coil assembly and the magnetic conductive component can be referred to the electromagnetic coil assembly structure of the clutch device and the magnetic conductive component structure of the hysteresis damper in the embodiment, and are not described in detail herein.

The operation of the driving mechanism of the washing machine having the present embodiment under the washing and dehydrating conditions will be described in detail.

When the washings are washed, the electromagnetic coil is powered off at the moment, a closed magnetic circuit formed between the electromagnetic coil and the clutch gear ring disappears, and the clutch gear ring is not acted by electromagnetic repulsion force any more, so that the clutch gear ring moves upwards along the outer wall of the inner gear ring under the action of the restoring force of the spring, a plurality of tooth sockets arranged at the connecting part at the lower end of the clutch gear ring are separated from the latch at one end of the driving frame, a plurality of upper latches at the connecting part at the lower end of the clutch gear ring are clamped with the slots of the injection-molded mounting part of the magnetic conductive part, and the speed reducing mechanism is in a working state, the rotating speeds of the washing shaft and the dewatering transmission sleeve change along with the change of the washing load, the rotating speed of the dewatering shaft sleeve is less than that of;

when the washings are dehydrated, the electromagnetic coil in the clutch device is electrified, a closed magnetic circuit is formed by interaction of the electromagnetic coil and the magnetic conductive iron ring arranged on the outer side of the clutch gear ring, the clutch gear ring slides downwards along the outer wall of the inner gear ring under the action of electromagnetic repulsion force (such as the downward direction in figure 14), the clutch gear ring compresses a spring arranged in the inner gear ring in the sliding process, a plurality of upper clamping teeth arranged on the connecting part at the lower end of the clutch gear ring are separated from clamping grooves of the injection molding mounting part of the magnetic conductive part, and a plurality of tooth grooves of the connecting part at the lower end of the clutch gear ring are connected with one end of the driving frame in a clamping way, so that the clutch gear ring is connected with the driving frame into a whole, the speed reducing mechanism does not work any more, but rotates at a high speed together with the motor as a whole.

The magnetic damper described in this embodiment may also have a braking function: when accomplishing the dehydration operating mode, washing machine's washing axle and dehydration axle sleeve are in common high-speed rotation state, hysteresis damper and dehydration axle sleeve fixed connection once more, the hysteresis damper makes the rotational speed or the moment of torsion reduction of dehydration axle sleeve, realizes washing machine's brake function.

Other components not mentioned in the present embodiment are the same as those in embodiment 2, and the operation principle is the same, and will not be described again here.

Embodiment 4 in the driving mechanism of the washing machine shown in fig. 26, the power member of the present invention is the inner rotor 3, the input member is mounted on the inner rotor 3, and the input member includes an input gear shaft 51 mounted at a position of the driving frame deviated from the axial center, and an input gear including a first input gear 52 and a second input gear 54 connected to the input gear shaft; the washing output part is an output gear 55 which is meshed and connected with a second input gear 54 of the input gear; the dewatering output member is an intermediate drive gear 53 located outside the drive frame and in meshed connection with the first input gear 52 of the input gear. Other components not referred to in this embodiment can be referred to in embodiment 1 or embodiment 2 or embodiment 3, and will not be described again here.

In the washing machine driving mechanism, in order to prevent the axial movement or displacement of the washing shaft, a plurality of clamp springs and other equivalent functional components can be additionally arranged at proper positions of the washing shaft or the dehydration shaft sleeve; in order to facilitate installation and bearing, gaskets and other equivalent functional components can be additionally arranged at proper positions of the washing shaft; in order to satisfy the normal transmission and installation of the transmission relationship of the invention, a plurality of oil-containing bearings and a plurality of ball bearings are arranged at different positions, for example, a plurality of oil-containing bearings are arranged between the washing shaft and the dewatering shaft sleeve, a plurality of ball bearings are arranged between the internal gear ring and the dewatering shaft sleeve, between the mounting disc and the dewatering shaft sleeve, and between the motor end cover and the washing shaft, and more specifically, the ball bearings can be deep groove ball bearings. Preferably, a bushing for functioning as an oil bearing may be disposed between the ball bearing between the motor cover and the washing shaft. In order to prevent washing water from entering the speed reduction input part, the speed reduction output part and the motor along the washing shaft, the dewatering shaft sleeve and the mounting disc, a small water seal is arranged between the washing shaft and the dewatering shaft sleeve, and a large water seal is arranged between the dewatering shaft sleeve and the mounting disc. Preferably, in order to achieve shock absorption and noise reduction during operation, a shock absorption pad made of a plastic material or an elastic material is additionally arranged between the assembling parts, and the shell assembly is made of a cast aluminum material or the inner gear ring is made of plastic under the condition that the installation strength or related functions are met; preferably, in order to realize material reduction and cost reduction and meet the strength requirement of the parts, reinforcing ribs in various shapes are arranged on the corresponding parts; and the specific mode of fixed connection, such as selecting the connection of fasteners such as screws and the like.

Since the selection of the parts such as the snap spring, the gasket, the oil-retaining bearing, the ball bearing, the bushing, the large water seal, the small water seal, the damping and noise-reducing member, and the reinforcing rib, and the fixing connection are conventional means of those skilled in the art, any modification made to the structure or the specific manner of fixing the parts is not novel relative to the patent.

In addition to the driving mechanisms of the washing machines described in the above 4 embodiments, the present invention further provides a washing machine, which includes the driving mechanism of any one of embodiment 1 or embodiment 4, and the washing machine adopting the driving mechanism of any one of the above 4 embodiments has the advantages of compact structure, small volume, and convenience for the miniaturized production of products.

Although the present invention has been described in detail, the present invention is not limited thereto, and various modifications made by those skilled in the art in accordance with the principle of the present invention should be understood to fall within the scope of the present invention.

Claims

1. A method of washing, characterized by: the method comprises the following steps:

the dewatering output component and the washing output component respectively rotate through interaction by meshing connection of the dewatering output component and the washing output component, so that the washing shaft and the dewatering shaft sleeve are respectively driven to rotate;

2. A washing method according to claim 1, characterized in that: further comprising the steps of:

the washing shaft transmitting a reaction force of a washing load thereto to the washing output part during rotation of the washing shaft; and

the washing output part changes the interaction of the washing output part and the dehydration output part by applying the washing load reaction force to the dehydration output part, so that the rotation speed of the washing output part and the dehydration output part is changed along with the change of the washing load.

3. A washing machine driving mechanism as applied to any one of claims 1-2, characterized in that: the method comprises the following steps: the washing machine comprises a power part for providing rotational kinetic energy, a speed reducing mechanism with an input part, a dehydration output part and a washing output part, a washing shaft and a dehydration shaft sleeve which are connected with the speed reducing mechanism; wherein,

the input part is fixedly connected with the power part;

the dehydration output part is meshed with the washing output part;

the magnetic damper is arranged and connected outside the dehydration shaft sleeve and can generate damping force on the dehydration shaft sleeve;

4. A drive mechanism for a washing machine as claimed in claim 3, wherein: the magnetic damper is a hysteresis damper, and comprises:

a permanent magnet;

a magnetically permeable member magnetically coupled to a permanent magnet, the permanent magnet causing the magnetically permeable member to be in an alternating magnetization state;

the magnetic conducting component is selectively and fixedly connected with the dehydration shaft sleeve;

and under the washing working condition, the magnetic conduction component is fixedly connected with the dehydration shaft sleeve, and the hysteresis damper generates damping force on the dehydration shaft sleeve, so that the rotation speed of the dehydration shaft sleeve is equal to or less than that of the washing shaft.

5. A drive mechanism for a washing machine as claimed in claim 3, wherein: the magnetic damper is an electromagnetic damper, and comprises:

an electromagnetic coil assembly;

the magnetic conducting component is magnetically coupled with the electromagnetic coil assembly and can be selectively and fixedly connected with the dehydration shaft sleeve;

and under the washing working condition, the magnetic conduction component is fixedly connected with the dehydration shaft sleeve, and the electromagnetic damper generates damping force on the dehydration shaft sleeve, so that the rotation speed of the dehydration shaft sleeve is equal to or less than that of the washing shaft.

6. A washing machine drive mechanism as claimed in claim 3, 4 or 5, wherein: the power component is a motor rotor or a belt pulley, and is respectively provided with a driving frame and a cavity arranged in the driving frame.

7. A washing machine drive mechanism as claimed in claim 6 wherein the input member is an eccentric sleeve mounted in the cavity and connected to the drive rack and rotating about the wash shaft.

8. The washing machine driving mechanism as claimed in claim 7, wherein the wash output part comprises:

the spur gear is sleeved outside the eccentric sleeve and is rotationally connected with the eccentric sleeve, and the spur gear is used for revolving around the axis of the driving frame along with the rotation of the eccentric sleeve;

and the connecting device is used for connecting the spur gear with the washing shaft or the dewatering shaft sleeve.

9. A washing machine driving mechanism according to claim 7 or 8, characterized in that the dehydration output part is an internal gear ring connected to the dehydration sleeve or the washing shaft, and the spur gear is installed therein such that the spur gear is engaged with internal teeth of the internal gear ring to generate rotation during the revolution.

10. A washing machine drive mechanism as claimed in claim 3, 4 or 5, wherein: the washing machine driving mechanism further includes:

and the clutch device is arranged in the shell component, is sleeved on the outer wall of the inner gear ring in an axial sliding manner, and is clamped and connected with or separated from the latch arranged at one end of the driving frame in an axial sliding manner.

11. A washing machine drive mechanism as claimed in claim 10, wherein: the clutch device includes:

a solenoid mechanism secured within the housing assembly;

the clutch gear ring is arranged on the inner side of the electromagnetic coil mechanism;

the clutch gear ring is connected with the inner gear ring in a sliding mode, and a tooth groove connected with the clamping teeth at one end of the driving frame in a clamping mode is formed in the bottom end of the clutch gear ring.

12. A washing machine drive mechanism as claimed in claim 11, wherein: the magnetic damper is characterized in that a clamping groove is formed in the inner side wall of the lower end of a magnetic conduction component of the magnetic damper, and an upper clamping tooth matched with the clamping groove is arranged on the clutch gear ring.