CN113564874A - Pulsator washing machine and power driving device and control method thereof - Google Patents
Pulsator washing machine and power driving device and control method thereof Download PDFInfo
- Publication number
- CN113564874A CN113564874A CN202010351105.7A CN202010351105A CN113564874A CN 113564874 A CN113564874 A CN 113564874A CN 202010351105 A CN202010351105 A CN 202010351105A CN 113564874 A CN113564874 A CN 113564874A
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- Prior art keywords
- transmission shaft
- magnetorheological fluid
- clutch
- opening
- fluid clutch
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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
- D06F33/00—Control of operations performed in washing machines or washer-dryers
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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
- D06F33/00—Control of operations performed in washing machines or washer-dryers
- D06F33/30—Control of washing machines characterised by the purpose or target of the control
- D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
- D06F33/40—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of centrifugal separation of water from the laundry
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D35/00—Fluid clutches in which the clutching is predominantly obtained by fluid adhesion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/44—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids
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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
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
The embodiment of the application provides a pulsator washing machine, a power driving device and a control method thereof, wherein the power driving device comprises a bottom plate assembly, a motor, a first transmission shaft, a second transmission shaft and a magnetorheological fluid clutch; the first end of the second transmission shaft is used for being connected with the inner cylinder; the magnetorheological fluid clutch is arranged on the second side of the bottom plate assembly, and the first transmission shaft penetrates through magnetorheological fluid of the magnetorheological fluid clutch; the second transmission shaft and the first transmission shaft are switched between driving connection and disconnection through a magnetorheological fluid clutch. The power driving device of the embodiment of the application has the advantages of simple structure and low failure rate; the magnetorheological fluid clutch is arranged on the second side, away from the water containing barrel, of the bottom plate assembly, the requirement on the waterproof grade of the magnetorheological fluid clutch can be lowered, and moreover, the installation space is large, and installation is facilitated.
Description
Technical Field
The application relates to the technical field of washing machines, in particular to a pulsator washing machine and a power driving device and a control method thereof.
Background
The existing full-automatic pulsator washing machine is provided with a clutch, wherein the clutch is used for switching between washing and dewatering, specifically, the pulsator rotates during washing, and the inner barrel and the pulsator rotate simultaneously during dewatering. The current common clutch realizes the conversion between washing and dewatering through a mechanical structure, but because the mechanical structure is complex and easy to break down, abnormal locking of a holding spring or abnormal sound caused by insufficient locking often occurs in the actual operation process. Therefore, the novel clutch is designed to realize the switching between washing and dewatering through the magnetorheological fluid, reduce the failure rate of the clutch and improve the user experience.
Disclosure of Invention
In view of this, embodiments of the present application desire to provide a pulsator washing machine with a simple structure and reliable clutching, and a power driving apparatus and a control method thereof.
In order to achieve the above object, a first aspect of embodiments of the present application provides a power driving apparatus of a pulsator washing machine, including a bottom plate assembly, a motor, a first transmission shaft, a second transmission shaft, and a magnetorheological fluid clutch, wherein the bottom plate assembly includes a first side for sealing a water tub of the pulsator washing machine, and a second side away from the water tub; the motor is arranged on the second side of the bottom plate assembly, the first end of the first transmission shaft is used for being connected with a wave wheel of a wave wheel washing machine, the second end of the first transmission shaft is connected with the motor, and the first end and the second end of the first transmission shaft synchronously rotate; the first end of the second transmission shaft is used for being connected with an inner barrel of the pulsator washing machine; the magnetorheological fluid clutch is arranged on the second side of the bottom plate component, magnetorheological fluid is packaged in the magnetorheological fluid clutch, and the first transmission shaft penetrates through the magnetorheological fluid; the second end of the second transmission shaft and the first transmission shaft are switched between driving connection and disconnection through the magnetorheological fluid clutch.
In some embodiments, the second transmission shaft is a hollow shaft, the second transmission shaft is sleeved on the outer surface of the first transmission shaft, and the first transmission shaft and the second transmission shaft are coaxially arranged.
In some embodiments, a surface of a portion of the first drive shaft within the magnetorheological fluid is formed with at least one keyway; and/or the surface of the part of the first transmission shaft, which is positioned in the magnetorheological fluid, is a rough surface.
In some embodiments, the power drive includes a mounting bracket coupled to the second side of the floor assembly, the mounting bracket having an accommodation space, the magnetorheological fluid clutch being disposed in the accommodation space; the motor set up in the mounting bracket deviates from one side of bottom plate component, first transmission shaft passes from among the accommodation space.
In some embodiments, a magnetorheological fluid clutch includes a housing having a reservoir for storing the magnetorheological fluid and at least one pair of positive and negative magnetic poles disposed on opposite sides outside the housing; and the second end of the second transmission shaft is fixedly connected with the shell.
In some embodiments, the housing has a first opening and a second opening coaxially arranged, and the first transmission shaft is arranged through the first opening and the second opening; the first opening is located on one side of the shell close to the bottom plate assembly, and the second end portion of the second transmission shaft covers the periphery of the first opening.
In some embodiments, the magnetorheological clutch further comprises a sleeve disposed about the second opening outside the housing; first transmission shaft wears to locate in the sleeve, the mounting bracket is kept away from the one end of bottom plate subassembly is provided with dodges the mouth, and the sleeve wears to locate dodge in the mouth, the casing pass through the sleeve install in on the mounting bracket.
In some embodiments, the power driving device includes a first bearing sleeved on the sleeve, and the first bearing is disposed between an inner wall of the avoidance port and an outer surface of the sleeve.
In some embodiments, the magnetorheological fluid clutch includes at least two sealing bearings disposed in the fluid chamber, the sealing bearings are sleeved on the first transmission shaft, one of the sealing bearings is disposed at the first opening to seal a gap between the first transmission shaft and an inner wall of the first opening; the other sealing bearing is arranged at the second opening to seal a gap between the first transmission shaft and the inner wall of the second opening.
A second aspect of the embodiments of the present application provides a pulsator washing machine, including a pulsator, an inner tub, a water tub, a control device, and any one of the above power driving devices, wherein the pulsator is rotatably disposed at the bottom of the inner tub; the inner cylinder is rotatably arranged in the water containing barrel, and a mounting hole is formed in the bottom of the water containing barrel; the first transmission shaft and the second transmission shaft extend into the water containing barrel through the mounting hole, the bottom plate assembly seals the mounting hole, the first end of the first transmission shaft is fixedly connected with the impeller, and the first end of the second transmission shaft is fixedly connected with the inner barrel; the control device is electrically connected with the magnetorheological fluid clutch.
A second aspect of the embodiments of the present application provides a control method for any one of the pulsator washing machines, including the steps of:
acquiring a dehydration instruction;
controlling the magnetorheological fluid clutch to be electrified, wherein the magnetorheological fluid clutch is used for driving and connecting the first transmission shaft and the second transmission shaft so as to drive the impeller and the inner cylinder to synchronously rotate;
and after the dehydration process is finished, controlling the magnetorheological fluid clutch to be powered off, and disconnecting the first transmission shaft and the second transmission shaft by the magnetorheological fluid clutch.
The power driving device of the embodiment of the application has the advantages of simple structure, no relative movement of mechanical parts in the clutch process, low failure rate and high working reliability; in addition, the magnetorheological fluid clutch is arranged on the second side, away from the water containing barrel, of the bottom plate assembly, and the magnetorheological fluid clutch cannot be soaked in water, so that the requirement on the waterproof grade of the magnetorheological fluid clutch can be lowered; moreover, the second side of the bottom plate assembly, which is far away from the water containing barrel, is provided with a larger installation space, so that the installation is convenient, and the size limitation on the magnetorheological fluid clutch is also reduced.
Drawings
Fig. 1 is a schematic structural diagram of a power driving device according to an embodiment of the present application;
FIG. 2 is a schematic view of the combination of the first transmission shaft, the second transmission shaft and the MR clutch shown in FIG. 1.
Description of the reference numerals
A floor assembly 10; a first transmission shaft 11; a key groove 11 a; a second transmission shaft 12; a motor 13; a stator 131; a rotor 132; a magnetorheological fluid clutch 14; a magnetorheological fluid 141; a housing 142; an upper housing 1421; a lower housing 1422; the first opening 142 a; the second opening 142 b; a seal bearing 143; a sleeve 144; a positive magnetic pole 145; a negative magnetic pole 146; a first bearing 151; a second bearing 152; a mounting frame 16; the accommodating space 16 a; sliding bearing 17
Detailed Description
It should be noted that, in the present application, technical features in examples and embodiments may be combined with each other without conflict, and the detailed description in the specific embodiment should be understood as an explanation of the gist of the present application and should not be construed as an improper limitation to the present application.
In the description of the embodiments of the present application, the "up" and "down" orientations or positional relationships are based on the orientations or positional relationships shown in fig. 1, it is to be understood that these orientation terms are merely for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the present application.
The embodiment of the application provides a pulsator washing machine, which comprises a pulsator, an inner barrel, a water containing barrel and a power driving device. The impeller is rotatably arranged at the bottom of the inner barrel, and the inner barrel is rotatably arranged in the water containing barrel. That is, the inner tub is a perforated inner tub, and the washing water is held by the tub.
In the washing process, the power driving device drives the impeller to rotate, and it should be noted that the inner cylinder can be in a free state or a fixed static state at the moment, and is not limited herein; in the dehydration process, the power driving device drives the inner cylinder and the impeller to rotate at a high speed, and then the centrifugal force is utilized for dehydration.
Referring to fig. 1 and 2, the power driving apparatus includes a base plate assembly 10, a motor 13, a first transmission shaft 11, a second transmission shaft 12, a control device, and a magnetorheological clutch 14. The control device is electrically connected with the magnetorheological fluid clutch 14 to control the on/off of the magnetorheological fluid clutch 14.
The bottom plate assembly 10 includes a first side for sealing a tub of the pulsator washing machine and a second side facing away from the tub. Specifically, the bottom of the water containing barrel is provided with a mounting hole, the first transmission shaft 11 and the second transmission shaft 12 extend into the water containing barrel through the mounting hole, and the bottom plate assembly seals the mounting hole to avoid water leakage of the mounting hole.
The motor 13 is disposed at a second side of the base plate assembly 10. A first transmission shaft 11 penetrates the bottom plate assembly 10, a first end of the first transmission shaft 11 is located at a first side of the bottom plate assembly 10 and is used for being connected with a pulsator of the pulsator washing machine, and a second end of the first transmission shaft 11 is located at a second side of the bottom plate assembly 10 and is in driving connection with a motor 13. First end and the synchronous rotation of second end of first transmission shaft 11, that is to say, first transmission shaft 11 is a rigidity whole, and motor 13 direct drive first transmission shaft 11 rotates and then directly drives the impeller and rotate, and motor 13 is for directly driving the motor promptly, has left out the gear drive system among the prior art, can make power drive arrangement's simple structure, compactness, has also avoided the noise that gear drive among the prior art brought.
A second drive shaft 12 extends through the base plate assembly 10. A first end of the second transmission shaft 12 is located at a first side of the bottom plate assembly 10 and is used for being connected with an inner drum of the pulsator washing machine, and a second end of the second transmission shaft 12 is located at a second side of the bottom plate assembly 10.
The magnetorheological fluid clutch 14 is arranged on the second side of the bottom plate component 10, magnetorheological fluid 141 is packaged in the magnetorheological fluid clutch 14, and the first transmission shaft 11 penetrates through the magnetorheological fluid 141; the second end of the second drive shaft 12 is switched in drive connection with the first drive shaft 11 via a magnetorheological clutch 14.
In the power driving device of the embodiment of the application, the magnetorheological fluid clutch 14 is arranged on the second side of the bottom plate assembly 10, which is far away from the water tub, that is, the magnetorheological fluid clutch 14 is not soaked in water, so that the requirement on the waterproof grade of the magnetorheological fluid clutch 14 can be reduced; in addition, the second side of the bottom plate assembly 10 facing away from the tub has a large installation space, which facilitates installation and also reduces the size limitation of the magnetorheological clutch 14.
The working principle of the magnetorheological fluid clutch 14 of the power driving device of the embodiment of the application is as follows: when the magnetorheological fluid clutch 14 is not electrified, the magnetorheological fluid 141 is in a newtonian fluid state, and at the moment, the first transmission shaft 11 freely rotates in the magnetorheological fluid 141; when the magnetorheological fluid clutch 14 is energized, the magnetorheological fluid 141 becomes a solid-like form under the action of a magnetic field, a magnetic linkage is formed in the direction of the magnetic field, and when the first transmission shaft 11 rotates, the torque of the first transmission shaft 11 is transmitted to the second transmission shaft 12 by virtue of the magnetic pull force of the magnetic linkage, so that the driving connection of the first transmission shaft 11 and the second transmission shaft 12 is realized. The magnetorheological fluid 141 has a response speed of millisecond level, good reversibility, high reliability, stable performance and low energy consumption, so that the power driving device of the embodiment of the application has a simple structure, does not have relative movement of mechanical parts in a clutch process, and has low failure rate, low noise and high working reliability.
When the pulsator washing machine does not need to be dewatered, the magnetorheological fluid clutch 14 is maintained in a power-off state, and the first transmission shaft 11 and the second transmission shaft 12 are maintained in a disconnected state. When dehydration is required, the magnetorheological fluid clutch 14 is electrified, and the first transmission shaft 11 and the second transmission shaft 12 are switched to a driving connection state.
The specific structural form of the first transmission shaft 11 and the second transmission shaft 12 is not limited. Referring to fig. 2, in an embodiment, the second transmission shaft 12 is a hollow shaft, and the second transmission shaft 12 is sleeved on the outer surface of the first transmission shaft 11, so that the power driving device has a compact structure, and the first transmission shaft 11 and the second transmission shaft 12 are coaxially disposed, so that the pulsator and the inner cylinder rotate coaxially, and eccentric rotation is avoided.
The specific structure of the floor assembly 10 is not limited as long as the escape opening described above can be sealed. The floor member 10 may be fastened to the outer cylinder by a fastening member such as a screw, and the outer cylinder bears the weight of the floor member 10.
In order to improve the torque transmission effect between the first transmission shaft 11 and the magnetorheological fluid 141, in an embodiment, referring to fig. 1 and fig. 2, at least one key groove 11a is formed on the surface of the portion of the first transmission shaft 11 located in the magnetorheological fluid 141, and in the case that the magnetorheological fluid 141 is in a solid-like state, the key groove 11a can increase the torque transmission between the magnetorheological fluid 141 and the first transmission shaft 11, thereby improving the reliability of the torque transmission.
The specific structural shape of the key groove 11a is not limited. Specifically, in one embodiment, the key slot 11a extends along the axial direction of the first transmission shaft 11, so as to increase the effective acting area of the magnetorheological fluid 141 and the first transmission shaft 11.
The number of the key grooves 11a is not limited, and may be one or a plurality of. It should be noted that the depth of the key groove 11a recessed into the surface of the first transmission shaft 11 and the length of the key groove 11a extending in the axial direction of the first transmission shaft 11 need to be controlled within appropriate ranges to ensure the structural strength of the first transmission shaft 11.
In some embodiments, the surface of the portion of the first transmission shaft 11 located in the magnetorheological fluid 141 is a rough surface, that is, the surface is a rugged or hollow structure. The rough surface can increase the binding force of the magnetorheological fluid 141 and the surface of the first transmission shaft 11, and improve the torque transmission reliability.
In one embodiment, referring to fig. 1 and 2, the power driving apparatus includes a mounting bracket 16, the mounting bracket 16 is connected to the second side of the base plate assembly 10, the motor 13 is fixedly connected to the mounting bracket 16, and the mounting bracket 16 provides a mounting position for the motor 13. Specifically, the mounting bracket 16 has a substantially barrel shape, and the mounting bracket 16 has a receiving space 16a, and the receiving space 16a is open toward the floor assembly 10. The magnetorheological fluid clutch 14 is arranged in the accommodating space 16a, the mounting frame 16 provides the accommodating space 16a for the magnetorheological fluid clutch 14, the magnetorheological fluid clutch 14 is protected, and other parts are prevented from being scratched to the magnetorheological fluid clutch 14.
The motor 13 is disposed on a side of the mounting bracket 16 facing away from the floor assembly 10. Specifically, referring to fig. 1, the motor 13 includes a stator 131 and a rotor 132; the stator 131 is fixedly connected to the mounting frame 16, and the rotor 132 is fixedly connected to the first transmission shaft 11.
The first transmission shaft 11 passes through the accommodating space 16 a. Specifically, one side of the mounting frame 16 facing away from the bottom plate assembly 10 has an avoiding opening, and the first transmission shaft 11 is arranged in the avoiding opening in a penetrating manner.
The side wall of the accommodating space 16a may be a closed structure formed by a plate body, or a mesh structure formed by interlacing ribs, and the like, which is not limited herein.
In one embodiment, the magnetorheological clutch 14 includes a housing 142 and at least one pair of a positive magnetic pole 145 and a negative magnetic pole 146, the housing 142 having a reservoir for storing the magnetorheological fluid 141, the positive magnetic pole 145 and the negative magnetic pole 146 being disposed on opposite sides of an exterior of the housing 142, and in particular, between an exterior surface of the housing 142 and an interior wall of the mounting bracket 16. The second end of the second transmission shaft 12 is fixedly connected to the housing 142. When the magnetorheological fluid 141 is changed from a liquid state to a solid-like state, the magnetorheological fluid 141 and the shell 142 form a rigid whole, the first transmission shaft 11 drives the magnetorheological fluid 141 and the shell 142 to synchronously rotate, and the shell 142 further drives the second transmission shaft 12 to synchronously rotate.
The manner of fixedly connecting the second end of the second transmission shaft 12 and the housing 142 is not limited, and for example, welding, screwing, bolting, integral molding, etc. may be used, which is not limited herein.
In an embodiment, the housing 142 has a first opening 142a and a second opening 142b coaxially disposed, the first transmission shaft 11 is disposed through the liquid storage cavity, the first opening 142a and the second opening 142b, the first opening 142a is located at a side of the housing 142 close to the bottom plate assembly 10, and the second end of the second transmission shaft 12 is covered around the first opening 142a, so that the second transmission shaft 12, the first transmission shaft 11 and the housing 142 coaxially rotate, and the power driving device is simple and compact in structure.
In an embodiment, referring to fig. 2, the magnetorheological fluid clutch 14 further includes a sleeve 144 covering the second opening 142b outside the housing 142, the sleeve 144 is disposed in the avoiding opening, the first transmission shaft 11 is disposed in the sleeve 144, and the housing 142 is mounted on the mounting frame 16 through the sleeve 144.
In one embodiment, referring to fig. 2, the power driving device includes a first bearing 151 disposed on the sleeve 144, and the first bearing 151 is disposed between the inner wall of the avoiding opening and the outer surface of the sleeve 144. The first bearing 151 can reduce friction between the first transmission shaft 11 and the sleeve 144, and also can serve as a positioning guide for rotation of the first transmission shaft 151.
In one embodiment, with continued reference to fig. 2, the power driving device includes a second bearing 152 disposed on the outer surface of the second transmission shaft 12, and the second bearing 152 is disposed between the second transmission shaft 12 and the bottom plate assembly 10. It should be noted that the first bearing 151 and the second bearing 152 are coaxially disposed to jointly play a positioning and guiding role for the first transmission shaft 11 and the second transmission shaft 12.
In one embodiment, the magnetorheological fluid clutch 14 includes at least two sealing bearings 143 disposed in the liquid storage cavity, the sealing bearings 143 are sleeved on the first transmission shaft 11, one of the sealing bearings 143 is disposed at the first opening 142a to seal a gap between the first transmission shaft 11 and an inner wall of the first opening 142 a; another one of the sealing bearings 143 is disposed at the second opening 142b to seal a gap between the first transmission shaft 11 and an inner wall of the second opening 142 b.
It is understood that the housing 142 may be an integral structure, or may be a separate structure and fixedly connected together. For example, in the embodiment of the present application, referring to fig. 2, the housing 142 includes an upper housing 1421 and a lower housing 1422, the upper housing 1421 and the lower housing 1422 are half-housing structures that are separated from each other, the upper housing 1421 and the second transmission shaft 12 are integrally formed, and the lower housing 1422 and the sleeve 144 are integrally formed. During assembly, the upper housing 1421 and the lower housing 1422 are in sealing butt joint, and the upper housing 1421 and the lower housing 1422 are fastened and connected together by using fasteners such as screws and bolts.
It should be noted that, in an embodiment, the power driving device further includes a plurality of sliding bearings 17 disposed on the first transmission shaft 11, and the sliding bearings 17 may be disposed at appropriate positions on the first transmission shaft 11, for example, referring to fig. 2, at least one sliding bearing 17 is disposed between an outer surface of the first end of the first transmission shaft 11 and an inner surface of the first end of the second transmission shaft 12, and the sliding bearing 17 is disposed between an outer surface of the first transmission shaft 11 and an inner wall of the sleeve 144. Since the sliding bearing 17 has a small dimension in the radial direction, it takes up only a small installation space, and the power drive device can be made more compact. The embodiment of the application also provides a control method of any one of the pulsator washing machines, which comprises the following steps:
s1: and acquiring a dehydration instruction.
S2: and controlling the magnetorheological fluid clutch 14 to be electrified, so that the form of the magnetorheological fluid 141 in the magnetorheological fluid clutch 14 is changed from a liquid state to a solid state, and the magnetorheological fluid clutch 14 is used for driving and connecting the first transmission shaft 11 and the second transmission shaft 12 so as to drive the impeller and the inner cylinder to synchronously rotate.
S3: after the dehydration process is finished, the magnetorheological fluid clutch 14 is controlled to be powered off, so that the form of the magnetorheological fluid 141 in the magnetorheological fluid clutch 14 is changed from a solid state to a liquid state, and the magnetorheological fluid clutch 14 disconnects the first transmission shaft 11 and the second transmission shaft 12.
It should be noted that after the step S3 is finished, the pulsator washing machine may enter the washing state again, or the program is finished, and the pulsator washing machine is turned off.
It should be noted that the dewatering instruction may be a dewatering mode embedded in the corresponding single dewatering mode or the washing mode, and this is not limited.
The various embodiments/implementations provided herein may be combined with each other without contradiction.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (11)
1. A power driving apparatus of a pulsator washing machine, comprising:
a floor assembly (10), the floor assembly (10) comprising a first side for sealing a tub of the pulsator washing machine and a second side facing away from the tub;
a motor (13), the motor (13) being disposed on a second side of the floor assembly (10),
a first transmission shaft (11), wherein a first end of the first transmission shaft (11) is used for being connected with a wave wheel of the wave wheel washing machine, a second end of the first transmission shaft (11) is connected with the motor (13), and the first end and the second end of the first transmission shaft (11) rotate synchronously;
the first end of the second transmission shaft (12) is used for being connected with the inner drum of the pulsator washing machine;
the magnetorheological fluid clutch (14), the magnetorheological fluid clutch (14) is arranged on the second side of the bottom plate component (10), magnetorheological fluid (141) is packaged in the magnetorheological fluid clutch (14), and the first transmission shaft (11) penetrates through the magnetorheological fluid (141); the second end of the second transmission shaft (12) and the first transmission shaft (11) are switched between driving connection and disconnection through the magnetorheological fluid clutch (14).
2. The power driving device according to claim 1, characterized in that the second transmission shaft (12) is a hollow shaft, the second transmission shaft (12) is sleeved on the outer surface of the first transmission shaft (11), and the first transmission shaft (11) and the second transmission shaft (12) are coaxially arranged.
3. A power drive according to claim 1, characterized in that the surface of the portion of the first transmission shaft (11) located in the magnetorheological fluid (141) is formed with at least one key groove (11 a); and/or the surface of the part of the first transmission shaft (11) in the magnetorheological fluid (141) is a rough surface.
4. A power drive according to claim 1, characterized in that it comprises a mounting bracket (16), said mounting bracket (16) being connected to a second side of said floor assembly (10), said mounting bracket (16) having a receiving space (16a), said magnetorheological clutch (14) being disposed in said receiving space (16 a); the motor (13) is arranged on one side, away from the bottom plate assembly (10), of the mounting frame (16), and the first transmission shaft (11) penetrates through the accommodating space (16 a).
5. The power drive of claim 4, wherein said magnetorheological clutch (14) includes a housing (142) and at least one pair of a positive magnetic pole (145) and a negative magnetic pole (146), said housing (142) having a reservoir for storing said magnetorheological fluid (141), said positive magnetic pole (145) and said negative magnetic pole (146) being disposed on opposite sides outside of said housing (142); the second end of the second transmission shaft (12) is fixedly connected with the shell (142).
6. A power drive according to claim 5, characterized in that said housing (142) has a first opening (142a) and a second opening (142b) coaxially arranged, said first transmission shaft (11) being inserted in said first opening (142a) and said second opening (142 b); the first opening (142a) is positioned on one side of the shell (142) close to the bottom plate component (10), and the second end part of the second transmission shaft (12) is covered on the periphery of the first opening (142 a).
7. The power drive of claim 6, wherein said magnetorheological clutch (14) further comprises a sleeve (144) disposed about said second opening (142b) outside of the housing (142); first transmission shaft (11) wear to locate in sleeve (144), mounting bracket (16) are kept away from the one end of bottom plate subassembly (10) is provided with dodges the mouth, and sleeve (144) wear to locate in dodging the mouth, casing (142) pass through sleeve (144) install in on mounting bracket (16).
8. The power drive of claim 7, characterized in that it comprises a first bearing (151) sleeved on said sleeve (144), said first bearing (151) being arranged between an inner wall of said evasion port and an outer surface of said sleeve (144).
9. The power drive of claim 6, characterized in that the magnetorheological clutch (14) includes at least two sealing bearings (143) disposed in the liquid storage cavity, the sealing bearings (143) are sleeved on the first transmission shaft (11), one of the sealing bearings (143) is disposed at the first opening (142a) to seal a gap between the first transmission shaft (11) and an inner wall of the first opening (142 a); wherein the other of the sealing bearings (143) is provided at the second opening (142b) to seal a gap between the first transmission shaft (11) and an inner wall of the second opening (142 b).
10. A pulsator washing machine, comprising:
an impeller;
the impeller is rotatably arranged at the bottom of the inner cylinder;
the inner cylinder is rotatably arranged in the water containing barrel, and a mounting hole is formed in the bottom of the water containing barrel;
the power driving apparatus as claimed in any one of claims 1 to 9, wherein the first transmission shaft (11) and the second transmission shaft (12) extend into the water tub through the mounting hole, the bottom plate assembly (10) seals the mounting hole, a first end of the first transmission shaft (11) is fixedly connected to the pulsator, and a first end of the second transmission shaft (12) is fixedly connected to the inner tub;
a control device electrically connected to the magnetorheological fluid clutch (14).
11. A control method of a pulsator washing machine according to claim 10, comprising the steps of:
acquiring a dehydration instruction;
controlling the magnetorheological fluid clutch (14) to be electrified, wherein the magnetorheological fluid clutch (14) is used for driving and connecting the first transmission shaft (11) and the second transmission shaft (12) so as to drive the impeller and the inner cylinder to synchronously rotate;
and after the dehydration process is finished, controlling the magnetorheological fluid clutch (14) to be powered off, wherein the magnetorheological fluid clutch (14) disconnects the first transmission shaft (11) and the second transmission shaft (12).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010351105.7A CN113564874A (en) | 2020-04-28 | 2020-04-28 | Pulsator washing machine and power driving device and control method thereof |
| PCT/CN2020/109502 WO2021217955A1 (en) | 2020-04-28 | 2020-08-17 | Pulsator washing machine and power driving device therefor, and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010351105.7A CN113564874A (en) | 2020-04-28 | 2020-04-28 | Pulsator washing machine and power driving device and control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113564874A true CN113564874A (en) | 2021-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010351105.7A Pending CN113564874A (en) | 2020-04-28 | 2020-04-28 | Pulsator washing machine and power driving device and control method thereof |
Country Status (2)
| Country | Link |
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| CN (1) | CN113564874A (en) |
| WO (1) | WO2021217955A1 (en) |
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|---|---|
| WO2021217955A1 (en) | 2021-11-04 |
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Application publication date: 20211029 |