CN113550123B - Deceleration clutch device of washing machine, washing machine and control method of deceleration clutch device - Google Patents
Deceleration clutch device of washing machine, washing machine and control method of deceleration clutch device Download PDFInfo
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- CN113550123B CN113550123B CN202010326769.8A CN202010326769A CN113550123B CN 113550123 B CN113550123 B CN 113550123B CN 202010326769 A CN202010326769 A CN 202010326769A CN 113550123 B CN113550123 B CN 113550123B
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- sleeve
- clutch
- shaft sleeve
- limiting
- chute
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/30—Driving arrangements
- D06F37/40—Driving arrangements for driving the receptacle and an agitator or impeller, e.g. alternatively
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/30—Driving arrangements
- D06F37/304—Arrangements or adaptations of electric motors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Abstract
The invention provides a decelerating clutch device of a washing machine, the washing machine and a control method thereof, wherein the decelerating clutch device of the washing machine comprises: an input shaft; the input shaft sleeve is sleeved on the input shaft; the torque shaft sleeve is sleeved on the input shaft and rotates together with the input shaft; the clutch sleeve is sleeved on the input shaft sleeve, rotates together with the input shaft sleeve and can reciprocate along the axial direction; the fixed shaft sleeve is fixedly arranged, the fixed shaft sleeve and the torque shaft sleeve are respectively positioned at two ends of the input shaft sleeve, and the clutch sleeve is sleeved between the torque shaft sleeve and the fixed shaft sleeve to reciprocate for respectively meshed transmission; and the clutch limiting mechanism is connected with the clutch sleeve and used for keeping and limiting the engaged transmission state of the clutch sleeve. When the speed reduction clutch device is suddenly powered off or suddenly fails, the clutch sleeve can be limited in a meshed transmission state through the clutch limiting mechanism, so that the clutch sleeve is prevented from being damaged due to tooth hitting caused by the inertia high-speed rotation in the sliding or resetting process.
Description
Technical Field
The invention relates to the technical field of washing equipment, in particular to a speed reduction clutch device of a washing machine, the washing machine and a control method thereof.
Background
A washing machine, which is a home appliance, is becoming an indispensable part of life of people, and a full-automatic pulsator washing machine, which is a main type of washing machine, is also becoming more and more widely applied. The existing full-automatic pulsator washing machine generally works in a mode that when washing and rinsing are carried out, the driving device drives the pulsator of the washing machine to rotate positively and negatively through the decelerating clutch device, and when dewatering is carried out, the driving device drives the pulsator of the washing machine and the washing barrel to rotate synchronously at high speed through the decelerating clutch device.
However, with the high-speed development of technology, the improvement of the washing effect of the existing full-automatic pulsator washing machine is more limited by simply relying on the washing mode of pulsator stirring water flow, so that how to increase the washing diversity of the full-automatic pulsator washing machine to improve the washing effect becomes a technical problem to be solved urgently.
Several patents have proposed solutions to this problem, for example, application number: 02804912.8, a chinese invention patent entitled drive mechanism for producing bi-directional rotation, a washing machine and method for producing bi-directional washing and related inner tub and agitator, discloses a drive mechanism for producing bi-directional drive suitable for use in a washing machine comprising a power input and two power outputs, one of which is connected to a agitator shaft (10) and rotates the agitator shaft in a first direction; and the other power output end of the power output end is connected with an inner barrel shaft (11) and enables the inner barrel shaft to rotate in a second direction opposite to the first direction. A washing machine for producing bidirectional washing and a washing method capable of producing bidirectional washing in the washing machine. A pulsator and an inner tub for a washing machine. The patent discloses a transmission mechanism capable of enabling a washing machine to generate bidirectional driving, and meanwhile discloses a specific structure of the transmission mechanism in the specification, and the content of the specification and the attached drawings shows that the patent solves the problem that the power driving mode is single when the existing full-automatic pulsator washing machine washes, but the disclosed transmission mechanism is complex in structure, high in manufacturing and assembling difficulty, high in manufacturing cost and the like.
For another example, the application number is: 201310408108.X, named: the invention discloses a Chinese patent application of a full-automatic washing machine, which comprises an outer barrel, an inner barrel, a pulsator and a driving device, wherein the driving device comprises at least two rotors and at least one stator, one rotor is connected with an inner barrel shaft, and the other rotor is connected with a pulsator shaft; the driving device is a variable-frequency direct-drive motor, the rotor, the stator, the inner barrel shaft and the impeller shaft are coaxially arranged, the inner barrel shaft is hollow, and the impeller shaft is arranged in the inner barrel shaft; the pulsator and the inner barrel rotate in the same direction or in opposite directions when the washing machine washes, or one of the pulsator and the inner barrel rotates, and the pulsator and the inner barrel rotate in the same direction and at the same speed when the washing machine dehydrates. The washing machine is connected with the inner barrel shaft and the impeller shaft through the two rotors respectively, and the inner barrel and the impeller are driven to rotate through the double rotors respectively.
As is known from the above two published patent applications, there are two main concepts for solving the diversity of water flows in washing machines: the first mode is to design a speed reduction clutch device capable of outputting bidirectional power to realize bidirectional washing in the washing process of the washing machine, so that the water flow effect is enhanced; and in a second mode, a driving motor with bidirectional power output is designed to respectively drive the pulsator and the inner barrel to realize bidirectional washing in the washing process of the washing machine, so that the water flow effect is enhanced. The first mode has the defects of complex structure, difficult installation and complex control method of the speed reduction clutch device, and the second mode has the defect of high cost of the driving motor with bidirectional power output.
One technical problem to be solved by the invention is as follows: how to increase the diversity of washing modes and switch among the washing modes to select the optimal washing mode.
In addition, in order to switch between multiple washing modes of the washing machine, the clutch sleeve of the clutch mechanism is generally engaged with the fixed sleeve and the torque sleeve respectively through the reciprocating motion of the clutch sleeve, and the driving device of the clutch sleeve needs to drive and maintain the clutch sleeve at a determined position to keep the engaged state. For example, when the clutch sleeve is engaged with the torque sleeve for transmission, the washing machine performs a dehydration process, and at this time, if the driving device of the clutch sleeve is suddenly powered off, the clutch sleeve is no longer driven by the driving device, and the clutch sleeve may generate "tooth-breaking" due to the inertia high-speed rotation in the sliding or resetting process, so as to cause damage.
Therefore, another technical problem to be solved by the present invention is: and how to keep the current engagement state of the clutch mechanism under the unexpected condition, so as to avoid damaging the clutch mechanism.
Disclosure of Invention
The first invention provides a speed reduction clutch device capable of realizing combination of a plurality of washing modes, and specifically adopts the following technical scheme:
a speed reducing clutch device of a washing machine, comprising:
an input shaft;
the input shaft sleeve is sleeved on the input shaft;
the torque shaft sleeve is sleeved on the input shaft and rotates together with the input shaft;
the clutch sleeve is sleeved on the input shaft sleeve, rotates together with the input shaft sleeve and can reciprocate along the axial direction;
the fixed shaft sleeve is fixedly arranged, the fixed shaft sleeve and the torque shaft sleeve are respectively positioned at two ends of the input shaft sleeve, and the clutch sleeve is sleeved between the torque shaft sleeve and the fixed shaft sleeve to reciprocate for respectively meshed transmission;
and the clutch limiting mechanism is connected with the clutch sleeve and used for keeping and limiting the engaged transmission state of the clutch sleeve.
Further, the clutch limiting mechanism comprises a movable limiting shaft sleeve, a fixed limiting shaft sleeve and a limiting piece, wherein the movable limiting shaft sleeve is sleeved on the clutch sleeve in a relatively rotating mode, the fixed limiting shaft sleeve is fixedly arranged, a plurality of limiting portions corresponding to all engagement transmission positions of the clutch sleeve are arranged on the fixed limiting shaft sleeve, one end of the limiting piece is connected with the movable limiting shaft sleeve, and the other end of the limiting piece is limited and abutted to the limiting portions.
Further, the periphery wall of the fixed shaft sleeve is provided with a limiting chute, the limiting part is a limiting rod, the limiting part is a limiting step arranged in the limiting chute, the clutch sleeve drives the movable limiting shaft sleeve to axially move, and the limiting rod slides along the limiting chute under the driving of the movable limiting shaft sleeve and is in a meshing transmission state with the limiting step to stop and limit.
Further, the limiting chute comprises a progress chute, a first limiting step and a second limiting step are respectively arranged at two ends of the progress chute, the axial distance between the first limiting step and the torque shaft sleeve is greater than that between the second limiting step and the torque shaft sleeve, when the clutch sleeve is in a meshing state with the fixed shaft sleeve, the limiting rod is positioned at an initial position for stopping with the first limiting step, and when the clutch sleeve moves to be in meshing transmission with the torque shaft sleeve, the clutch sleeve moves to the second limiting step along the progress chute and is stopped with the second limiting step.
Further, the limit chute comprises a return chute, one end of the return chute is communicated with a second limit step of the process chute through a first communication chute, the other end of the return chute is communicated with a first limit step of the process chute, a first limit concave part is formed in the middle of the first communication chute, and the limit rod is limited in the first limit concave part of the first communication chute when the clutch sleeve moves to be meshed and transmitted with the torque shaft sleeve;
preferably, the first communicating chute is a V-shaped chute, and the first limiting recess is a V-shaped intersection of the V-shaped chute.
Further, a third limiting step is arranged between the first limiting step and the second limiting step of the process sliding groove, and the limiting rod is stopped against the third limiting step in the process that the clutch sleeve moves from the fixed shaft sleeve to the torque shaft sleeve, so that the clutch sleeve is limited to be positioned between the fixed shaft sleeve and the torque shaft sleeve.
Further, the limiting chute comprises a third limiting step communicated with the progress chute and a second communicating chute communicated with the return chute, a second limiting concave part is formed in the middle of the second communicating chute, and the clutch sleeve is positioned between the fixed shaft sleeve and the torque shaft sleeve when the limiting rod is stopped at the second limiting concave part;
preferably, the second communicating chute is a V-shaped chute, and the second limiting recess is a V-shaped intersection of the V-shaped chute.
The second object of the present invention is to provide a washing machine with the above-mentioned speed reducing clutch device, specifically, the following technical scheme is adopted:
the washing machine comprises an outer barrel, wherein a water outlet is formed in the outer barrel, a water drain valve for controlling the water outlet to be opened and closed and a tractor for pulling the water drain valve to act are arranged at the bottom of the outer barrel;
the clutch mechanism comprises a shifting fork component for shifting the clutch sleeve to reciprocate, and the tractor is provided with a first traction stroke for separating the traction shifting fork component from the fixed shaft sleeve and not engaged with the torque shaft sleeve, and a second traction stroke for separating the traction shifting fork component from the fixed shaft sleeve and engaged with the torque shaft sleeve, and keeping the drain valve open.
The third object of the present invention is to provide a control method of the above washing machine, specifically, the following technical scheme is adopted:
a control method of the washing machine, the washing machine including a driving motor for driving a speed reduction clutch device, the control method comprising:
the washing machine controls the traction shifting fork component of the tractor to be meshed with the fixed shaft sleeve, the brake wheel is in a braking state, and controls the driving motor to act, and the driving motor drives the pulsator of the washing machine to reciprocate through the speed reduction clutch device so as to perform a first washing process;
the washing machine controls the traction shifting fork component of the tractor to be separated from the fixed shaft sleeve and not meshed and fixed with the torque shaft sleeve, the brake wheel is in a free rotation state, and controls the driving motor to act to drive the impeller of the washing machine to reciprocate and the inner barrel to freely rotate through the speed reduction clutch device so as to carry out a second washing process;
the washing machine controls the traction shifting fork component of the tractor to be separated from the fixed shaft sleeve and meshed and fixed with the torque shaft sleeve, the brake wheel is synchronously linked with the input shaft, and controls the driving motor to act to drive the washing machine impeller and the inner barrel to run in the same speed and the same direction through the speed reduction clutch device for a third washing process or a dehydration process.
Further, when the washing machine is in the second washing process, the first traction stroke is controlled to act again by the control tractor to release the limit of the clutch limiting mechanism on the clutch sleeve, and the clutch sleeve is switched to an initial state of engagement of the fixed shaft sleeve;
when the washing machine is in the third washing process or the dewatering process, the limit of the clutch sleeve by the clutch limit mechanism is released by controlling the tractor to act the second traction stroke again, and the clutch sleeve is switched to the initial state of the engagement of the fixed shaft sleeve.
According to the speed reduction clutch device, when the driving device of the clutch sleeve is suddenly powered off or suddenly fails, the clutch sleeve is not driven by the driving device, but the clutch sleeve can still be limited in a meshing transmission state through the clutch limiting mechanism, so that the problem that the clutch sleeve is damaged due to tooth hitting caused by sliding or resetting of the inertia high-speed rotation is avoided, and the overall structural safety of the speed reduction clutch device is ensured.
The speed reducing clutch device of the invention can provide a plurality of washing functions: the washing mode of full automatic before can be adopted, also can adopt the washing mode of rubbing with hands. Namely, during washing: the rotary washing machine can provide a rotary washing mode of the wave wheel, and also can provide a rotary washing mode of the wave wheel, wherein the washing barrel can freely rotate. In the whole washing process of the washing machine, various combined washing modes, various water flows and circulating and crossed washing modes can be adopted for operation. The washing machine has the advantages that the washing is more sufficient, clothes are cleaner, the clothes are prevented from being entangled, and the user experience of the washing machine is improved.
Drawings
FIG. 1 is a front view of a speed reducing clutch device of a washing machine according to an embodiment of the present invention;
FIG. 2 is a bottom view of a speed reducing clutch device of a washing machine according to an embodiment of the present invention;
fig. 3 is a sectional view of a speed reduction clutch device (a state in which a clutch sleeve is engaged with a stationary sleeve) of a washing machine according to an embodiment of the present invention;
FIG. 4 is a partial enlarged view of FIG. 3 of a speed reducing clutch device of a washing machine according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view of a speed reducing clutch device of a washing machine according to an embodiment of the present invention (a state in which a clutch sleeve is separated from a fixed sleeve and is not engaged with a torque sleeve);
fig. 6 is a sectional view of a speed reduction clutch device (a state in which a clutch sleeve is engaged with a torque sleeve) of a washing machine according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of the movement position of a fork assembly under various working conditions according to an embodiment of the present invention;
FIG. 8 is a schematic perspective view of a fixed limiting sleeve according to an embodiment of the present invention;
FIG. 9 is a schematic diagram showing a second perspective structure of a fixed limiting sleeve according to an embodiment of the present invention;
FIG. 10 is a schematic structural view of a limiting chute for fixing a limiting sleeve according to an embodiment of the present invention;
fig. 11 is a schematic diagram of each limiting position of the limiting rod and the limiting chute according to the embodiment of the invention.
Detailed Description
The deceleration clutch device of a washing machine, the washing machine and the control method thereof according to the present invention are described in detail with reference to the accompanying drawings as follows:
example 1
As shown in fig. 1 to 11, the present embodiment provides a deceleration clutch device of a washing machine, comprising:
an input shaft 1;
the input shaft sleeve 3 is sleeved on the input shaft 1;
the torque shaft sleeve 2 is sleeved on the input shaft 1 and rotates together with the input shaft;
the clutch sleeve 4 is sleeved on the input shaft sleeve 3 to rotate together with the input shaft sleeve and can reciprocate along the axial direction;
the fixed shaft sleeve 5 is fixedly arranged, the fixed shaft sleeve 5 and the torque shaft sleeve 2 are respectively positioned at two ends of the input shaft sleeve 3, and the clutch sleeve 4 reciprocates between the torque shaft sleeve 2 and the fixed shaft sleeve 5 to respectively carry out meshing transmission;
and the clutch limiting mechanism is connected with the clutch sleeve 4 and used for keeping and limiting the meshing transmission state of the clutch sleeve 4.
In the speed reduction clutch device of the embodiment, when the driving device of the clutch sleeve is suddenly powered off or suddenly fails, the clutch sleeve is not driven by the driving device any more, but the clutch sleeve can still be limited in a meshing transmission state through the clutch limiting mechanism, so that the problem that the clutch sleeve is damaged due to tooth-beating caused by sliding or resetting in the process of inertial high-speed rotation is avoided.
As an implementation manner of this embodiment, the clutch limiting mechanism in this embodiment includes a moving limiting shaft sleeve 15, a fixed limiting shaft sleeve 17 and a limiting member 16, where the moving limiting shaft sleeve 15 is sleeved on the clutch sleeve 4 and can rotate relatively, the fixed limiting shaft sleeve 17 is fixedly arranged, the fixed limiting shaft sleeve 17 is provided with a plurality of limiting portions corresponding to each engaged transmission position of the clutch sleeve 4, one end of the limiting member 16 is connected to the moving limiting shaft sleeve 15, and the other end of the limiting member 16 is limited and abutted to the limiting portions.
The movement limiting shaft sleeve 15 in this embodiment moves axially synchronously along with the axial reciprocation of the clutch sleeve 4, and the movement limiting shaft sleeve 15 drives the limiting member 16 to move to the position of the engaged state of the clutch sleeve 4 by the stop and limit of each limiting portion on the fixed limiting shaft sleeve 17. The movement limiting sleeve 15 of the embodiment can rotate relative to the clutch sleeve 4 because the clutch sleeve 4 rotates synchronously with the input shaft 1 when being meshed with the torque sleeve 2, so that the clutch sleeve 4 can not drive the movement limiting sleeve 15 to rotate synchronously.
Specifically, the clutch sleeve 4 of the embodiment is provided with a sleeve part, the movement limiting shaft sleeve 15 is rotatably sleeved on the same sleeve part, and two ends of the sleeve part are respectively provided with a limiting step to drive the movement limiting shaft sleeve 15 to axially move synchronously.
The fixed limiting sleeve 17 of the present embodiment is fixed on the opening of the lower housing 13 for the input shaft 1 and the input shaft sleeve 3 to pass through, and the hollow inside of the fixed limiting sleeve 17 is opposite to the opening, so that the input shaft 1 and the input shaft sleeve 3 pass through the inside of the fixed sleeve 17 and the opening of the lower housing 13 to enter the housing 13. The clutch sleeve 4 of this embodiment has a holding cavity towards the inside of one end of the fixed shaft sleeve 17, and when the clutch sleeve 4 moves to engage with the fixed shaft sleeve 5, the fixed limiting shaft sleeve 17 is located in the holding cavity.
Specifically, in this embodiment, the outer peripheral wall of the fixed shaft sleeve 17 is provided with a limiting chute, the limiting member 16 is an elastic limiting rod, the limiting portion is a limiting step arranged in the limiting chute, the clutch sleeve 4 drives the movable limiting shaft sleeve 15 to axially move, and the elastic limiting rod slides along the limiting chute under the driving of the movable limiting shaft sleeve 15 and is in stop and limit with the limiting step when the clutch sleeve 4 is in a meshed transmission state.
Since the movement track of the clutch sleeve 4 is determined, the embodiment limits the movement track of the limiting piece 16 through the limiting sliding groove, and sets a limiting step in the limiting sliding groove to limit the limiting rod to be in the corresponding engaged state position.
Further, as shown in fig. 8-10, the limiting chute includes a process chute 20, two ends of the process chute 20 are respectively provided with a first limiting step 25 and a second limiting step 21, an axial distance between the first limiting step 25 and the torque sleeve 2 is greater than an axial distance between the second limiting step 25 and the torque sleeve 2, when the clutch sleeve 4 is in a state of meshing with the fixed sleeve 5, the limiting rod is in an initial position for stopping with the first limiting step 25, and when the clutch sleeve 4 moves to be in meshing transmission with the torque sleeve 2, the limiting rod moves to the second limiting step 21 along the process chute 20 to stop with the second limiting step.
In order to adapt to the motion characteristics of the reciprocating motion of the clutch sleeve 4, the limiting chute in this embodiment includes a return chute 23, one end of the return chute 23 is communicated to the second limiting step 21 of the process chute 20 through a first communicating chute 22, the other end is communicated to the first limiting step 25 of the process chute 20, a first limiting concave portion is formed in the middle of the first communicating chute 22, and the limiting rod is limited in the first limiting concave portion of the first communicating chute 22 when the clutch sleeve 4 moves to engage and drive with the torque sleeve 2.
Preferably, the first connecting chute 22 is a V-shaped chute, and the first limit recess is a V-shaped intersection of the V-shaped chute.
Further, in this embodiment, a third limiting step 19 is disposed between the first limiting step 25 and the second limiting step 21 of the process chute 20, and the limiting rod abuts against the third limiting step 19 in the process of moving the clutch sleeve 4 from the fixed shaft sleeve 5 to the torque shaft sleeve 2, so as to limit the clutch 4 between the fixed shaft sleeve 5 and the torque shaft sleeve 2.
The limiting chute according to this embodiment includes a third limiting step 19 communicating with the process chute 20 and a second communicating chute 24 communicating with the return chute 23, a second limiting recess is provided in the middle of the second communicating chute 24, and the clutch sleeve 4 is located between the fixed shaft sleeve 5 and the torque shaft sleeve 2 when the limiting rod is stopped in the second limiting recess.
Preferably, the second communicating chute 24 is a V-shaped chute, and the second limiting recess is a V-shaped intersection of the V-shaped chute.
The speed reducing clutch device of the washing machine has three working conditions:
full-automatic state: the speed reducer is also in an initial working state, as shown in fig. 3 and 4, at the moment, the clutch sleeve 4 is meshed with the fixed shaft sleeve 5, and the clutch sleeve 4 cannot rotate, so that the inner barrel cannot rotate, and when the driving motor rotates, only the pulsator can be driven to rotate, thereby realizing the function of full-automatic washing.
As shown in fig. 8-11, the limiting member 16 is located at the lowest end P1 of the fixed limiting sleeve 17, and abuts against the first limiting step 25.
Hand rubbing state: as shown in fig. 5, the clutch sleeve 4 is at a position not engaged with the torque shaft sleeve 2 and the fixed shaft sleeve 5, so that the clutch sleeve 4 can rotate freely, i.e. the inner barrel is in a free state and can rotate freely, and the function of rotating the impeller and rubbing the inner barrel by hands can rotate randomly is realized.
As shown in fig. 8-11, the limiting member 16 is at the P2 position of the fixed limiting sleeve 17, and is in stop limit with the third limiting step 19.
Dehydration state: as shown in fig. 6, the clutch sleeve 4 is engaged with the torque sleeve 2, and when the motor rotates, not only the pulsator rotates, but also the inner barrel follows synchronous rotation, so that the dehydration function is realized.
As shown in fig. 8-11, the limiting member 16 is at the position P3 of the fixed limiting sleeve 17, and is in stop and limit with the second limiting step 21.
As shown in fig. 7, the fork 6 of the present embodiment has three positions S1, S2, S3 corresponding to the positions P1, P2, P3 of the limiting member 16 on the fixed limiting sleeve, so as to limit three engagement positions of the clutch sleeve 4, and implement different functions of the speed reducing clutch device.
The switching between the working conditions of the deceleration clutch device of the washing machine is as follows:
function switching of full-automatic state to hand rubbing state
Sequence of actions: in a fully automatic state, the tractor 7 is electrified to drive the brake arm 8 to rotate, so that the shifting fork 6 is pressed to lift the clutch sleeve 4 upwards. The clutch sleeve 4 drives the movement limiting sleeve 15 and the limiting piece 16 fixed on the movement limiting sleeve 15 to move simultaneously, so that the limiting piece 16 moves to the position shown by the drawing P2. At this time, the clutch sleeve 4 is separated from the fixed sleeve 5 and the torque sleeve 2, so that the hand rubbing function is realized.
Function switching from hand rubbing state to full-automatic state
Sequence of actions: when the tractor 7 is powered off in the hand rubbing state as described above, the limiting piece 16 can move to the P2-1 position under the action of spring force and structural limitation, and then the brake arm 8 is driven to rotate when the tractor 7 is powered on again, so that the shifting fork 6 is driven to lift the clutch sleeve 4 upwards. The clutch sleeve 4 drives the movement limiting shaft sleeve 15 and the limiting piece 16 fixed on the movement limiting shaft sleeve 15 to move simultaneously, and the limiting piece 16 on the movement limiting shaft sleeve 15 can only move from the P2-1 position to the P2-2 position. At this point the retractor 7 is de-energized again. The limiting piece 16 can move to the P1 position of the fixed limiting shaft sleeve 17 under the action of spring force, so that the function switching from the hand rubbing state to the full-automatic state is realized.
Function switching from fully automatic state to dehydrated state
Sequence of actions: at the moment, only the tractor 7 is directly electrified to the second stroke, and the brake arm 8 rotates to the limit position, so that the shifting fork 6 is driven to be lifted to the highest position, and the clutch sleeve 4 is meshed with the torque shaft sleeve 2, so that the dehydration function is realized.
Function switching from hand rubbing state to dewatering state
Sequence of actions: in the hand rubbing state, the second stroke of the tractor 7 is electrified to bring the brake arm 8 to rotate continuously to the limit position, so that the shifting fork 6 is driven to be lifted to the highest position, and the clutch sleeve 4 is meshed with the torque shaft sleeve 2 to realize the dehydration function.
Function switching from dehydrated state to fully automatic state
Sequence of actions: when the tractor 7 is powered off in the dehydration state as described above, the limiting piece 16 can move to the position P3-1 under the action of spring force and structural limitation, and at the moment, when the tractor 7 is powered on again, the brake arm 8 is driven to rotate, so that the shifting fork 6 is driven to lift the clutch sleeve 4 upwards. The clutch sleeve 4 drives the movement limiting shaft sleeve 15 and the limiting piece 16 fixed on the movement limiting shaft sleeve 15 to move simultaneously, and the limiting piece 16 on the movement limiting shaft sleeve 15 can only move from the P3-1 position to the P3-2 position. At this point the retractor 7 is de-energized again. The limiting piece 16 can move to the P1 position of the fixed limiting shaft sleeve 17 under the action of spring force, so that the function switching from the dehydration state to the full-automatic state is realized.
Security protection
If the power is suddenly cut off in the dehydration state, the tractor 7 can be powered off, the brake arm 8 is reset instantaneously, the shifting fork 6 is reset suddenly, the clutch sleeve 4 can move rapidly towards the direction of the fixed shaft sleeve 5 under the action of the clutch pressure spring 14, and the limiting piece 16 on the moving limiting shaft sleeve 15 can move to the middle P3-1 position of the fixed limiting shaft sleeve under the action of spring force. The phenomenon that the clutch sleeve 4 slides off and the fixed sleeve 5 is suddenly meshed to form tooth striking is avoided, so that the safety of the whole structure of the speed reducing clutch device is ensured.
The washing machine with the speed reducing clutch device comprises an outer barrel, wherein a water outlet is formed in the outer barrel, a water drain valve for controlling the water outlet to open and close and a tractor for pulling the water drain valve to act are arranged at the bottom of the outer barrel;
the clutch mechanism comprises a shifting fork component for shifting the clutch sleeve to reciprocate, and the tractor is provided with a first traction stroke for separating the traction shifting fork component from the fixed shaft sleeve and not engaged with the torque shaft sleeve, and a second traction stroke for separating the traction shifting fork component from the fixed shaft sleeve and engaged with the torque shaft sleeve, and keeping the drain valve open.
A control method of the washing machine, the washing machine including a driving motor for driving a speed reduction clutch device, the control method comprising:
the washing machine controls the traction shifting fork component of the tractor to be meshed with the fixed shaft sleeve, the brake wheel is in a braking state, and controls the driving motor to act, and the driving motor drives the pulsator of the washing machine to reciprocate through the speed reduction clutch device so as to perform a first washing process;
the washing machine controls the traction shifting fork component of the tractor to be separated from the fixed shaft sleeve and not meshed and fixed with the torque shaft sleeve, the brake wheel is in a free rotation state, and controls the driving motor to act to drive the impeller of the washing machine to reciprocate and the inner barrel to freely rotate through the speed reduction clutch device so as to carry out a second washing process;
the washing machine controls the traction shifting fork component of the tractor to be separated from the fixed shaft sleeve and meshed and fixed with the torque shaft sleeve, the brake wheel is synchronously linked with the input shaft, and controls the driving motor to act to drive the washing machine impeller and the inner barrel to run in the same speed and the same direction through the speed reduction clutch device for a third washing process or a dehydration process.
Further, when the washing machine is in the second washing process, the first traction stroke is controlled to act again by the control tractor to release the limit of the clutch limiting mechanism on the clutch sleeve, and the clutch sleeve is switched to an initial state of engagement of the fixed shaft sleeve;
when the washing machine is in the third washing process or the dewatering process, the limit of the clutch sleeve by the clutch limit mechanism is released by controlling the tractor to act the second traction stroke again, and the clutch sleeve is switched to the initial state of the engagement of the fixed shaft sleeve.
Example two
As shown in fig. 1 to 11, the present embodiment provides a deceleration clutch device of a washing machine, which includes a deceleration mechanism, the deceleration mechanism includes a braking wheel 19 capable of rotating bidirectionally, a dewatering shaft 11 and an input shaft sleeve 3 fixedly connected with the braking wheel 19, and a locking mechanism for locking the input shaft sleeve 3.
The brake wheel is in a braking state when the existing full-automatic washing machine washes, the decelerating clutch device can only drive the pulsator to rotate, and the brake wheel can only rotate when dehydrating, but can only rotate in one direction under the limit of the one-way bearing, so that the inner barrel can not rotate in the washing process or the rotating mode is single even if the inner barrel rotates, and the washing machine is unfavorable for forming various washing modes.
The brake wheel of the speed reduction clutch device of the embodiment can rotate bidirectionally, so that the inner barrel is driven to have more rotation modes, and more washing modes can be provided theoretically: the input shaft sleeve 3 is locked through the locking mechanism, meanwhile, the brake wheel 19 is also locked, and the speed reducing clutch device singly drives the washing mode of the impeller to rotate; the input shaft sleeve 3 is unlocked through the locking mechanism, the brake wheel 19 can rotate freely in two directions along with the input shaft sleeve, and the speed reduction clutch device drives the pulsator to rotate singly and the inner barrel to rotate freely.
Therefore, the speed reducing clutch device of the present embodiment can provide various washing functions: the washing mode of full automatic before can be adopted, also can adopt the washing mode of rubbing with hands. Namely, during washing: the rotary washing machine can provide a rotary washing mode of the wave wheel, and also can provide a rotary washing mode of the wave wheel, wherein the washing barrel can freely rotate. In the whole washing process of the washing machine, various combined washing modes, various water flows and circulating and crossed washing modes can be adopted for operation. The washing machine has the advantages that the washing is more sufficient, clothes are cleaner, the clothes are prevented from being entangled, and the user experience of the washing machine is improved.
The existing braking belt can only brake the braking wheel in one direction, the other direction of the braking wheel is limited by a one-way bearing, and the braking wheel 19 of the embodiment can rotate in two directions, and meanwhile, in order to ensure the realization of a washing mode of single-impeller rotation, the braking wheel 19 is required to be braked in two directions. Therefore, the speed reducing clutch device according to the present embodiment includes a clutch mechanism including a clutch sleeve 4 sleeved on the input shaft sleeve 3 and capable of reciprocating along the axial direction thereof, the locking mechanism includes a fixed shaft sleeve 5 fixedly sleeved outside the input shaft sleeve 3, and the clutch sleeve 4 and the fixed shaft sleeve 5 are engaged with each other through engagement teeth to lock the input shaft sleeve 3. According to the structure characteristics of the clutch sleeve 4 of the clutch mechanism in the speed reduction clutch device, the input shaft sleeve 3 is locked through the fixed shaft sleeve 5 which can be meshed with the clutch sleeve 4 and is fixedly arranged, and meanwhile, the brake wheel 19 is braked.
In order to realize the fixed setting of fixed axle sleeve 5, this embodiment speed reduction clutch device includes the casing that has the inside cavity, brake wheel 19 set up in the inside cavity of casing, have the casing entry that is used for input axle sleeve 3 to pass on the casing, fixed axle sleeve 5 including fixing on the casing and being located the annular body of casing entry periphery, set up the washing meshing tooth on the annular body, clutch axle sleeve 4 on be close to the one end of fixed axle sleeve 5 and set up the meshing tooth, clutch axle sleeve 4 go up the meshing tooth with the fixed meshing tooth meshing locking of fixed axle sleeve 5 input axle sleeve 3.
Meanwhile, the brake wheel 19 of the embodiment needs to be fixedly connected with the dewatering shaft 11 and the input shaft sleeve 3 respectively, and the brake wheel 19 comprises a reduction gear train with a containing cavity inside, and a reduction mechanism is arranged in the containing cavity; the two ends of the brake wheel 19 are provided with a first connecting port and a second connecting port, the dewatering shaft 11 is fixedly connected with the first connecting port, and the input shaft sleeve 3 is fixedly connected with the second connecting port.
Preferably, the brake wheel 19 includes a cylindrical body and a necked-in end that is contracted inward in a radial direction from an opening at one end of the body, the first connection port is disposed at the necked-in end, and the second connection port is opened at the other end of the cylindrical body; the dewatering shaft 11 is a sleeve with a certain length, one end of the sleeve extends into the first connecting port and is fixedly connected with the first connecting port, the input shaft sleeve 3 comprises a sleeve and a sleeve disc fixed at one end of the sleeve, and the sleeve disc is covered on the second connecting port and is fixedly connected with the second connecting port.
The speed reducing mechanism comprises an input shaft 1, and the clutch mechanism comprises a shifting fork component for shifting a clutch sleeve 4 to reciprocate and a torque shaft sleeve 2 sleeved on the input shaft 1 and rotating together with the input shaft.
The speed reduction clutch device comprises a tractor 7, the tractor 7 is connected with a shifting fork component, the shifting fork component is pulled to move to drive a clutch sleeve 4 to reciprocate, the tractor 7 is pulled to be in an initial state, the clutch sleeve 4 is meshed and fixed with a fixed shaft sleeve 5, the tractor 7 is provided with a first traction stroke of the shifting fork component which is separated from the fixed shaft sleeve 5 and is not meshed and fixed with a torque shaft sleeve 2, and a second traction stroke of the shifting fork component which is separated from the fixed shaft sleeve 5 and is meshed and fixed with the torque shaft sleeve 2.
Further, the shifting fork assembly comprises a shifting fork 6, one end of the shifting fork 6 is limited on the periphery of the clutch sleeve to shift the shifting fork to reciprocate, and the middle part of the shifting fork 6 is rotatably arranged on a shifting fork seat to form a lever structure. The tractor 7 is connected with the brake arm 8, the other end of the shifting fork 6 is abutted against the brake arm 8, and the tractor 7 pulls the brake arm 8 to drive the shifting fork 6 to rotate so as to drive the clutch sleeve 4 to move up and down.
The present embodiment pulls the clutch sleeve 4 through the retractor 7 to reciprocate between the fixed sleeve 5 and the torque sleeve 2: the input shaft sleeve 3 is meshed with the fixed shaft sleeve 5 to lock the brake wheel 19; the input shaft sleeve 3 rotates synchronously with the input shaft 1 in engagement with the torque shaft sleeve 2.
The external spline is disposed on the outer periphery of the input shaft 1 in this embodiment, the torque sleeve 2 has an internal spline, the internal spline of the torque sleeve 2 is embedded with the external spline of the input shaft 1, and the torque sleeve 2 rotates synchronously with the input shaft 1.
The clutch sleeve 4 of this embodiment is provided with clutch sleeve engaging teeth on one end close to the torque sleeve 2, one end of the torque sleeve 2 close to the clutch sleeve 4 is provided with torque sleeve engaging teeth, the clutch sleeve 4 moves to the torque sleeve 2, the clutch sleeve engaging teeth are engaged with the torque sleeve engaging teeth, and the clutch mechanism is in an engaged state.
The clutch sleeve of the embodiment is evenly distributed on the circumference of the meshing teeth, the lower edges of the teeth are helical teeth, and the angle of the helical teeth is 0-15 degrees. In the mounted state, the direction of the helical teeth is from low to high in the dewatering direction. The clutch sleeve meshing teeth are uniformly distributed in the circumferential ring, the upper edges of the teeth are helical teeth, the helical teeth correspond to the clutch sleeve meshing teeth, and the helical tooth angle of the torque sleeve meshing teeth is 0-15 degrees. In the mounted state, the direction of the helical teeth is from high to low from the dewatering direction.
The brake arm 8 of the present embodiment has a connection portion that is connected to the retractor 7. The brake arm 8 has a fork paddle that moves toward the fork 6 as the brake arm 8 rotates. The tractor 7 is in a first traction stroke, a certain interval is reserved between the shifting fork shifting sheet and the shifting fork 6, the tractor 7 is in a second traction stroke, and the shifting fork shifting sheet is stopped against the shifting fork 6 to trigger the shifting fork 6 to rotate.
In order to realize that the brake arm 8 of the present embodiment is not engaged with the torque sleeve 2 during the first stroke, and that the clutch sleeve 4 is engaged with the torque sleeve 2 during the second stroke, the present embodiment may be realized by simply limiting the distance between the shift fork plectrum and the shift fork 6, or may be realized by that the engagement stroke between the clutch sleeve 4 and the torque sleeve 2 is greater than the distance between the shift fork plectrum and the shift fork 6.
The input shaft 1 of this embodiment is sleeved with a motor lock nut for fixedly connecting the input shaft with a rotor of a driving motor, and a buffer pad is arranged on an end face of the torque shaft sleeve, which is close to the driving motor.
The speed reducing clutch device of the embodiment further comprises a shell with an inner cavity, the brake wheel 19 is arranged in the inner cavity of the shell, the brake wheel comprises a brake wheel body with an opening containing cavity and a brake wheel shaft fixedly connected with the opening end of the brake body, and a bidirectional rotating bearing is arranged between the brake wheel shaft and the shell, so that the brake wheel 19 of the embodiment can rotate bidirectionally.
The shell of this embodiment includes upper end shell 12 and lower end shell 13, and both are connected and enclose into interior cavity, brake wheel 19 set up in the interior cavity of lower end shell 13, brake arm 8 rotatable mounting on lower end shell 13.
The shift fork seat of this embodiment is fixedly mounted on the bottom end cover of the lower end housing 13.
The input shaft sleeve 3 of this embodiment is sleeved with a clutch pressure spring 14 for elastically resetting and meshing the clutch sleeve 4, and the clutch pressure spring 14 is disposed between the clutch sleeve 4 and the bottom end surface of the lower end shell 13.
The brake arm 8 of the present embodiment has a brake arm stopper that is stopped against the lower end housing 13 to define a reset position when the brake arm is elastically reset.
As shown in fig. 7, the present embodiment also provides a washing machine with the speed reducing clutch device, which includes an inner tub and a pulsator disposed in the inner tub, the speed reducing mechanism includes a pulsator shaft, the pulsator shaft is fixedly connected with the pulsator, and the dehydration shaft is fixedly connected with the inner tub.
Further, the washing machine of the embodiment further comprises an outer tub, a water outlet is formed in the outer tub, and a water drain valve for controlling the water outlet to be opened and closed is arranged at the bottom of the outer tub.
The tractor 7 is provided with a first traction stroke in which the traction shifting fork component is separated from the fixed shaft sleeve 5 and is not meshed and fixed with the torque shaft sleeve 2, and the drain valve is kept closed, and a second traction stroke in which the traction shifting fork component is separated from the fixed shaft sleeve 5 and is meshed and fixed with the torque shaft sleeve 2, and the drain valve is kept open.
The embodiment also provides a control method of the washing machine, the washing machine including a driving motor for driving a speed reduction clutch device, the control method including:
the washing machine control clutch sleeve 4 is meshed with the fixed shaft sleeve 5 and fixed, the brake wheel 19 is in a braking state, and the driving motor is controlled to act to drive the impeller of the washing machine to reciprocate through the speed reduction clutch device so as to perform a first washing process;
the clutch sleeve 4 is controlled to be separated from the fixed shaft sleeve 5 and is not meshed and fixed with the torque shaft sleeve 2, the brake wheel 19 is in a free rotation state, and the driving motor is controlled to act to drive the pulsator of the washing machine to reciprocate and the inner barrel to freely rotate through the speed reduction clutch device so as to carry out a second washing process;
the control clutch sleeve 4 is separated from the fixed shaft sleeve 5 and meshed and fixed with the torque shaft sleeve 2, the brake wheel 19 is synchronously linked with the input shaft 1, and the control driving motor acts to drive the dewatering process of the washing machine impeller and the inner barrel which run in the same speed and the same direction through the speed reduction clutch device.
Further, the washing machine control tractor is in an initial state, the clutch sleeve is meshed and fixed with the washing rack, the brake wheel is in a braking state, the drain valve is kept closed, the driving motor is controlled to act, and the washing machine impeller is driven to reciprocate through the speed reduction clutch device to perform a first washing process;
the washing machine controls the action of a tractor to a first traction stroke, a traction shifting fork component of the tractor acts to drive a clutch sleeve to be separated from a washing rack and not meshed and fixed with a torque shaft sleeve, a drain valve is kept closed, a driving motor is controlled to act to drive a pulsator of the washing machine to reciprocate through a speed reduction clutch device, an inner barrel is free to run, and a second washing process is carried out;
the washing machine controls the traction device to act to a second traction stroke, the traction shifting fork component of the traction device acts to drive the clutch sleeve to be separated from the washing gear frame and meshed and fixed with the torque shaft sleeve, the drain valve is kept on, the driving motor is controlled to act to drive the impeller and the inner barrel of the washing machine to run at the same speed and in the same direction through the speed reduction clutch device, and a third washing process or a dehydration process is carried out.
Preferably, the first washing process and the second washing process may be alternatively or alternately performed in the same washing process.
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 (11)
1. A speed reducing clutch device of a washing machine, comprising:
an input shaft;
the input shaft sleeve is sleeved on the input shaft;
the torque shaft sleeve is sleeved on the input shaft and rotates together with the input shaft;
the clutch sleeve is sleeved on the input shaft sleeve, rotates together with the input shaft sleeve and can reciprocate along the axial direction;
the fixed shaft sleeve is fixedly arranged, the fixed shaft sleeve and the torque shaft sleeve are respectively positioned at two ends of the input shaft sleeve, and the clutch sleeve is sleeved between the torque shaft sleeve and the fixed shaft sleeve to reciprocate for respectively meshed transmission;
the clutch limiting mechanism is connected with the clutch sleeve and used for keeping the engagement transmission state of the limiting clutch sleeve;
the clutch limiting mechanism comprises a movable limiting shaft sleeve, a fixed limiting shaft sleeve and a limiting piece, wherein the movable limiting shaft sleeve is sleeved on the clutch sleeve in a relatively rotating mode, the fixed limiting shaft sleeve is fixedly arranged, a plurality of limiting portions corresponding to all meshing transmission positions of the clutch sleeve are arranged on the fixed limiting shaft sleeve, one end of the limiting piece is connected with the movable limiting shaft sleeve, and the other end of the limiting piece is limited and abutted to the limiting portions.
2. The speed reducing clutch device according to claim 1, wherein the outer peripheral wall of the fixed shaft sleeve is provided with a limiting chute, the limiting piece is a limiting rod, the limiting part is a limiting step arranged in the limiting chute, the clutch sleeve drives the movable limiting shaft sleeve to axially move, and the limiting rod slides along the limiting chute under the drive of the movable limiting shaft sleeve and is in stop and limit with the limiting step when the clutch sleeve is in a meshed transmission state.
3. The speed reducing clutch device according to claim 2, wherein the limit chute comprises a progress chute, two ends of the progress chute are respectively provided with a first limit step and a second limit step, the axial distance between the first limit step and the torque sleeve is larger than that between the second limit step and the torque sleeve, the limit rod is positioned at an initial position for stopping the first limit step when the clutch sleeve is in a meshed state with the fixed sleeve, and the limit rod is stopped against the second limit step along the progress chute when the clutch sleeve moves to be meshed with the torque sleeve for transmission.
4. A speed reducing clutch device according to claim 3, wherein the limit chute comprises a return chute, one end of the return chute is communicated with the second limit step of the process chute through a first communication chute, the other end of the return chute is communicated with the first limit step of the process chute, a first limit concave part is formed in the middle of the first communication chute, and the limit rod is limited in the first limit concave part of the first communication chute when the clutch sleeve moves to be engaged with the torque shaft sleeve for transmission.
5. The speed reducing clutch device according to claim 4, wherein the first communicating chute is a V-shaped chute, and the first limit recess is a V-shaped intersection of the V-shaped chute.
6. The speed reducing clutch device according to claim 4, wherein a third limiting step is arranged between the first limiting step and the second limiting step of the process sliding groove, and the limiting rod is abutted against the third limiting step in the process of moving the clutch sleeve from the fixed shaft sleeve to the torque shaft sleeve, so that the clutch sleeve is limited between the fixed shaft sleeve and the torque shaft sleeve.
7. The speed reducing clutch device according to claim 6, wherein the limit chute comprises a third limit step for communicating with the progress chute and a second communication chute for communicating with the return chute, a second limit concave is formed in the middle of the second communication chute, and the clutch sleeve is positioned between the fixed shaft sleeve and the torque shaft sleeve when the limit rod is stopped at the second limit concave.
8. The speed reducing clutch device according to claim 7, wherein the second communicating chute is a V-shaped chute, and the second limiting recess is a V-shaped intersection of the V-shaped chute.
9. A washing machine having a speed reducing clutch device according to any one of claims 1 to 8, comprising an outer tub having a drain opening thereon, a drain valve installed at the bottom of the outer tub to control opening and closing of the drain opening, and a tractor for pulling the drain valve;
the clutch mechanism comprises a shifting fork component for shifting the clutch sleeve to reciprocate, and the tractor is provided with a first traction stroke for separating the traction shifting fork component from the fixed shaft sleeve and not engaged with the torque shaft sleeve, and a second traction stroke for separating the traction shifting fork component from the fixed shaft sleeve and engaged with the torque shaft sleeve, and keeping the drain valve open.
10. A control method of a washing machine as claimed in claim 9, wherein the washing machine includes a driving motor for driving the speed reducing clutch device, the control method comprising:
the washing machine controls the traction shifting fork component of the tractor to be meshed with the fixed shaft sleeve, the brake wheel is in a braking state, and controls the driving motor to act, and the driving motor drives the pulsator of the washing machine to reciprocate through the speed reduction clutch device so as to perform a first washing process;
the washing machine controls the traction shifting fork component of the tractor to be separated from the fixed shaft sleeve and not meshed and fixed with the torque shaft sleeve, the brake wheel is in a free rotation state, and controls the driving motor to act to drive the impeller of the washing machine to reciprocate and the inner barrel to freely rotate through the speed reduction clutch device so as to carry out a second washing process;
the washing machine controls the traction shifting fork component of the tractor to be separated from the fixed shaft sleeve and meshed and fixed with the torque shaft sleeve, the brake wheel is synchronously linked with the input shaft, and controls the driving motor to act to drive the washing machine impeller and the inner barrel to run in the same speed and the same direction through the speed reduction clutch device for a third washing process or a dehydration process.
11. The control method according to claim 10, wherein when the washing machine is in the second washing process, the clutch sleeve is switched to the initial state of engagement of the fixed sleeve by controlling the tractor to actuate the first traction stroke again to release the limit of the clutch sleeve by the clutch limiting mechanism;
when the washing machine is in the third washing process or the dewatering process, the limit of the clutch sleeve by the clutch limit mechanism is released by controlling the tractor to act the second traction stroke again, and the clutch sleeve is switched to the initial state of the engagement of the fixed shaft sleeve.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010326769.8A CN113550123B (en) | 2020-04-23 | 2020-04-23 | Deceleration clutch device of washing machine, washing machine and control method of deceleration clutch device |
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| CN202010326769.8A CN113550123B (en) | 2020-04-23 | 2020-04-23 | Deceleration clutch device of washing machine, washing machine and control method of deceleration clutch device |
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| CN113550123B true CN113550123B (en) | 2023-09-08 |
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