CN114990852A - Speed reducer and double-power impeller washing machine - Google Patents

Speed reducer and double-power impeller washing machine Download PDF

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Publication number
CN114990852A
CN114990852A CN202210276949.9A CN202210276949A CN114990852A CN 114990852 A CN114990852 A CN 114990852A CN 202210276949 A CN202210276949 A CN 202210276949A CN 114990852 A CN114990852 A CN 114990852A
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China
Prior art keywords
transmission
gear
impeller
driving shaft
shaft
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Granted
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CN202210276949.9A
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Chinese (zh)
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CN114990852B (en
Inventor
张丽莉
刘富豪
理耀冰
苏怀亮
叶超
玄志文
郭深
刘桂冕
蒋汉军
刘国梁
孙瑞
马玲
李宝刚
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Qingdao Fujunyuan Machinery Technology Co ltd
Qingdao University of Technology
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Qingdao Fujunyuan Machinery Technology Co ltd
Qingdao University of Technology
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Priority to CN202210276949.9A priority Critical patent/CN114990852B/en
Publication of CN114990852A publication Critical patent/CN114990852A/en
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/30Driving arrangements 
    • D06F37/40Driving arrangements  for driving the receptacle and an agitator or impeller, e.g. alternatively
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Abstract

A speed reducer and a double-power impeller washing machine are provided, wherein the speed reducer comprises an impeller driving shaft, an output gear, a transmission gear set and a synchronizer assembly. Each gear is a bevel gear, and the middle part of the output gear is provided with an upper extension pipe sleeved on the impeller driving shaft. The synchronizer component comprises a shifting fork synchronizer A and a shifting fork synchronizer B, is sleeved on the impeller driving shaft and rotates synchronously with the impeller driving shaft in due time, and can be respectively meshed with the input gear or the output gear along the axial direction for transmission. The upper end of the impeller driving shaft is connected with the impeller in a transmission way, and the lower end of the impeller driving shaft passes through the chassis, the chassis support, the output gear, the shifting fork synchronizer A, the shifting fork synchronizer B and the input gear and then is connected with the upper end of the output shaft of the motor in a transmission way. The double-power impeller washing machine comprises an inner barrel, an impeller, a speed reducer and a motor; the drive shaft of the wave wheel in the reducer is connected with the wave wheel, and the upper extension pipe on the output gear in the reducer is connected with the inner cylinder.

Description

Speed reducer and double-power impeller washing machine
Technical Field
The invention relates to a transmission technology of a washing machine, in particular to a speed reducer and a double-power pulsator washing machine using the same.
Background
The inner barrel and the impeller of the double-power washing machine are driven by opposite forces to achieve the double-power effect, so that clothes can be washed more cleanly, and the clothes can be prevented from being intertwined. But because its washing machine noise is great when doing washing, it is difficult to hear, like the boeing, can bring not good experience for the user among the laundry process. The reason for this is that the driving gear set in the washing machine system has a complex structure, a large number of gears and a large number of contact pairs, which inevitably generates a certain amount of noise when meshing.
The invention patent application No. 201910138239.8, application publication No. CN 109736047A, entitled "control method of washing machine double-bevel gear differential speed reduction system" discloses an application of a bevel gear transmission structure to a washing machine: the control method comprises an input shaft component I, an input shaft component II, a planet carrier component and a double-cone gear component, wherein in the running process of the speed reduction system, the rotating speed of a transmission shaft of a planet carrier is related to the difference of the rotating speeds of two motors, the speed reduction system has the advantages of large transmission ratio and large output torque, the two motors can be always in a high-speed running state, and the rotating direction of the transmission shaft of the planet carrier of the speed reduction system can be changed under the condition that the rotating directions of the two motors are not changed, so that the motors are ensured to run under the working state with higher efficiency. If a stepless speed change mode is adopted in the running process of the speed reduction system, the speed reduction system has the capability of respectively controlling the output rotating speed and the output torque, and if a stepped speed change mode is adopted, the basic configuration conditions of the pulsator washing machine and the drum washing machine can be met on the premise of reducing the cost. The bevel gear transmission technology rarely adopted by the washing machine is adopted to solve the problems that the common clutch used by the early pulsator washing machine only plays a clutch role and cannot keep the rotation direction of the motor unchanged when the speed is reduced and the washing mode and the dehydration mode are switched, and the washing machine can normally run by two motors.
The application No. 201520030617.8, No. CN 204570281U, entitled "Power device of Dual drive washing machine" discloses a power device of dual power washing machine using single motor; application No. 201510022429.5, application publication No. CN 105839350 a, entitled "a power device for a dual-drive washing machine" discloses another power device for a dual-power washing machine using a single motor. However, the structures of the bevel gears are complex, and the bevel gears cannot be used in the bevel gears.
Disclosure of Invention
The invention mainly aims to provide a reducer for applying bevel gear transmission to a washing machine, and the washing machine can be provided with only one motor by utilizing the reducer; and the other is a novel bevel gear transmission double-power impeller washing machine using the speed reducer.
The technical scheme that the speed reducer which applies bevel gear transmission to the washing machine can be used for only one motor is as follows: a decelerator, comprising:
a pulsator driving shaft;
an output gear; the output gear is a bevel gear, and the middle part of the output gear is provided with an upper extension pipe sleeved on the impeller driving shaft;
the transmission gear set comprises a transmission pinion A and a transmission pinion B which are meshed with the output gear, and a transmission bull gear and an input bull gear which respectively rotate synchronously with the transmission pinion A and the transmission pinion B; the transmission big gear and the input big gear are both bevel gears and are meshed with an input gear sleeved on the impeller driving shaft;
the synchronizer component comprises a shifting fork synchronizer A and a shifting fork synchronizer B; the synchronizer component is sleeved on the impeller driving shaft, rotates synchronously with the impeller driving shaft at proper time and can be respectively meshed with the input gear or the output gear along the axial direction for transmission;
the upper end of the impeller driving shaft is connected with the impeller in a transmission way, and the lower end of the impeller driving shaft downwards penetrates through the chassis, the chassis support, the output gear, a synchronizer A and a shifting fork A in the shifting fork synchronizer A, and a shifting fork B in the shifting fork synchronizer B is connected with the synchronizer B, the input gear and the upper end of the output shaft of the motor positioned below the speed reducer rack in a transmission way.
Preferably, the transmission gear set further comprises a second shaft, one end of the second shaft is mounted on the speed reducer rack in a manner of rotating around the axis of the second shaft, and the transmission large gear, the transmission small gear A and the other end of the second shaft are fixedly connected. Preferably, the transmission gear set further comprises an input and output shaft, one end of the input and output shaft can be mounted on the speed reducer rack in a rotating mode around the axis of the input and output shaft, and the input large gear, the transmission small gear B and the other end of the input and output shaft are fixedly connected. The modulus of the output gear, the transmission gearwheel, the transmission pinion A, the transmission pinion B, the input gear and the input gearwheel is more than 1.
The bevel gear transmission alone is not inventive nor novel. The invention creatively combines a plurality of bevel gear transmission pairs together, and creatively obtains a new speed reducer scheme for applying bevel gear transmission to the washing machine with a shifting fork synchronizer A and a shifting fork synchronizer B which are rarely applied in the field of the washing machine, thereby not only well realizing the problem that the turning direction of the motor is not changed when people only need one motor to realize speed reduction and the conversion of a washing mode and a dehydration mode, but also having the advantages of simple structure and convenient installation and use on the whole.
The technical scheme of the washing machine with only one motor, which is obtained by applying the speed reducer with the bevel gear transmission mechanism and the synchronizer assembly to the washing machine, is as follows: a double-power impeller washing machine comprises an inner barrel, an impeller, a speed reducer and a motor; the drive shaft of the wave wheel in the reducer is connected with the wave wheel, and the upper extension pipe on the output gear in the reducer is connected with the inner cylinder.
Preferably, the lower end of the pulsator driving shaft is in transmission connection with the upper end of the output shaft of the motor below the speed reducer, the specific transmission connection scheme is one of the following three schemes, and the lower end of the pulsator driving shaft 5 can be in transmission connection with the upper end of the output shaft of the motor below the speed reducer through any other scheme:
firstly, a limiting convex part is arranged on the side wall of the upper end of a driving shaft of the impeller, a mounting hole for connecting the driving shaft of the impeller is arranged on the impeller, and a limiting concave part is arranged on the inner wall of the mounting hole; the limiting convex part and the limiting concave part are installed in a matched mode, and the impeller driving shaft rotate synchronously;
secondly, the impeller driving shaft is in transmission connection with the impeller through a spline structure;
thirdly, the upper end of the impeller driving shaft is a prism, and the prism is inserted into a counter bore which is arranged on the impeller and matched with the prism to realize the transmission connection between the upper end of the impeller driving shaft and the impeller.
Preferably, the washing machine has a polytetrafluoroethylene wear layer on each of the surfaces in relatively sliding engagement.
The working process of the washing machine in the washing mode and the dehydration mode is as follows:
1. under the washing mode, under the effect of shift fork synchronous ware B, the wheel shaft of output gear and the rotation direction of impeller drive shaft are opposite: one is clockwise and the other is counterclockwise, for example, if the output shaft of the motor rotates clockwise, the driving shaft of the pulsator rotates clockwise, and the wheel shaft of the output gear rotates counterclockwise. In addition, the rotating speed of the shaft of the output gear is lower than that of the impeller driving shaft, so that the output gear with lower rotating speed drives the chassis to rotate through the chassis support, and further drives the inner drum connected with the chassis and fixedly connected with the chassis to rotate in the rotating direction opposite to the rotating direction of the impeller, so that the washing effect which can be achieved by the traditional impeller washing machine at higher impeller rotating speed can be achieved at lower impeller rotating speed, and the friction of clothes can be reduced in the washing mode, so that the clothes are protected.
2. In the dehydration mode: the output gear and the input/output shaft are fastened together under the action of the shifting fork synchronizer A to realize the same-direction and synchronous rotation.
In the double-power pulsator washing machine, the transmission large gear, the transmission pinion gear pair, the input large gear and the input pinion gear pair are arranged in bilateral symmetry, so that the operation stability of the washing machine is improved. The double-power pulsator washing machine provided by the invention adopts a power transmission structure different from that of a transmission double-power pulsator washing machine, can obtain a good washing effect, and has the advantages of simplicity and reliability in the whole structure. The modulus of the output gear, the transmission gearwheel, the transmission pinion A, the transmission pinion B, the input gear and the input gearwheel is larger than 1, and the gears have the advantages of high contact ratio, good meshing performance, strong bearing capacity, large bearing torque and prolonged service life of products. The upper end of the impeller driving shaft and various transmission connection structures of the impeller have transmission stability, high reliability, easy processing and manufacturing and low cost. The surfaces of the washing machine which are in relative sliding connection are provided with the polytetrafluoroethylene wear-resistant layers, so that the friction resistance between the relevant surfaces is small, and the service life of the relevant components is long.
In conclusion, the double-power pulsator washing machine disclosed by the invention adopts a mode of combining the bevel gear transmission structure with the shifting fork synchronizer A and the shifting fork synchronizer B which work asynchronously, realizes the double-power structure of the pulsator washing machine by using one motor with fewer transmission pair structures, and has the advantages of high reliability, low noise and long service life in operation.
Drawings
FIG. 1: the invention discloses a structural schematic diagram of a double-power pulsator washing machine;
in the figure: the device comprises an inner cylinder 1, an outer cylinder 2, an impeller 3, an impeller driving shaft 5, a chassis support 6, an output gear 7, an upper extension pipe 7.1, a reducer fixing shell 8, a transmission mechanism 9, a reducer rack 10, a motor 11, a chassis 12, a transmission large gear 13, a second shaft 14, a transmission small gear A15, a shifting fork A16, a synchronizer A17, a shifting fork B18, a synchronizer B19, a transmission small gear B20, an input gear 21, an input large gear 22 and an input/output shaft 23.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
An embodiment of a speed reducer comprises:
the patent drawings of the reducer are contained in fig. 1.
As shown in fig. 1, the speed reducer includes:
a pulsator driving shaft 5;
an output gear 7; the output gear 7 is a bevel gear, and the middle part of the output gear 7 is provided with an upper extension pipe 7.1 which is sleeved on the impeller driving shaft 5;
a transmission gear set which comprises a second shaft 14, an input and output shaft 23, a transmission pinion A15 engaged with the output gear 7, a transmission pinion B20, a transmission gearwheel 13 and an input gearwheel 22 which respectively rotate synchronously with the transmission pinion A15 and the transmission pinion B20; the transmission gearwheel 13 and the input gearwheel 22 are both bevel gears and are meshed with an input gear 21 sleeved on the impeller driving shaft 5;
the synchronizer assembly comprises a shifting fork synchronizer A and a shifting fork synchronizer B; the synchronizer component is sleeved on the impeller driving shaft 5, synchronously rotates with the impeller driving shaft 5 and can be respectively meshed with the input gear 21 or the output gear 7 along the axial direction for transmission;
the upper end of a wave wheel driving shaft 5 is in transmission connection with a wave wheel 3, the lower end of the wave wheel driving shaft 5 downwards penetrates through a chassis 12, a chassis support 6, an output gear 7, a synchronizer A17 and a shifting fork A16 in a shifting fork synchronizer A, a shifting fork B18 and a synchronizer B19 in a shifting fork synchronizer B, and the upper end of an output shaft of a motor 11 positioned below a reducer rack 10 is in transmission connection after being input into a large gear 22;
one end of the second shaft can be installed on the speed reducer frame 10 around the axis of the second shaft in a rotating way, and the transmission big gear 10, the transmission small gear A15 and the other end of the second shaft 14 are fixedly connected;
one end of the input and output shaft 23 can rotate around the axis thereof and is arranged on the reducer frame, and the input large gear 22, the transmission small gear B20 and the other end of the input and output shaft 23 are fixedly connected.
Preferably, the module of the output gear 7, the transmission gearwheel 13, the transmission pinion a15, the transmission pinion B20, the input gear 21 and the input gearwheel 22 is greater than 1.
Second, about a double dynamical impeller washing machine's embodiment:
the first embodiment is as follows:
as shown in figure 1, the invention comprises an inner cylinder 1, an outer cylinder 2, a wave wheel 3, a wave wheel driving shaft 5, a chassis support 6, a chassis 12, a speed reducer and a motor 11. The reducer comprises a reducer fixing shell 8, a transmission mechanism 9, a reducer frame 10 and an automatic control system of the washing machine which is not shown in the figure due to the prior art. The transmission mechanism 9 is arranged in a space enclosed by the speed reducer fixing shell 8 and the speed reducer rack 10. The reducer fixing shell 8 is fixedly connected with the lower end of the outer cylinder 2 and the upper end of the reducer rack 10. The specific structural details of the speed reducer are simple and known technologies, and are not described herein; the transmission mechanism 9 comprises a shifting fork synchronizer A, a shifting fork synchronizer B, a transmission pinion B20, an input gear 21, an input large gear 22 and an input/output shaft 23. The gears are all bevel gears, preferably, the modulus of the output gear 7, the transmission gearwheel 13, the transmission pinion A15, the transmission pinion B20, the input gear 21 and the input gearwheel 22 is greater than 1, and the specific structural details of the gears and the connection and installation mode of the gears and the corresponding shafts are simple and known technology and are not described herein. Fork synchronizer a includes fork a16, synchronizer a 17. The shifting fork synchronizer B comprises a shifting fork B18 and a synchronizer B19. The shifting fork synchronizer A and the shifting fork synchronizer B are identical, and the specific structural details, the connection structure of the shifting fork synchronizer A and the shifting fork synchronizer B with the impeller driving shaft 5 and the connection structure of the shifting fork synchronizer B with the automatic control system of the washing machine are simple technologies and are not described herein again;
the left end of the second shaft 14 is in transmission connection with the left end of the speed reducer rack, and the right end of the input/output shaft 23 is in transmission connection with the right end of the speed reducer rack;
the transmission gearwheel 10, the transmission pinion A15 and the right end of the second shaft 14 are fixedly connected; the input gearwheel 22, the transmission pinion B20 and the left end of the input/output shaft 23 are fixedly connected; the output gear 7 is in transmission connection with the upper ends of the transmission pinion A15 and the transmission pinion B20 at proper time; the input gear 21 is in transmission connection with the lower ends of the transmission big gear 13 and the input big gear 22 at proper time;
the upper end of the impeller driving shaft 5 is in transmission connection with the impeller 3 through a spline structure [ detailed structure details, which are related to the known technology and not described herein any more ]. The lower end of the wave wheel driving shaft 5 downwards passes through the chassis 12, the chassis support 6, the output gear 7, a synchronizer A16 and a shifting fork A17 in the shifting fork synchronizer A, a shifting fork B18 and a synchronizer B19 in the shifting fork synchronizer B, the input gear 21 is in transmission connection with the upper end of an output shaft of a motor 11 positioned below the speed reducer rack 10, an upper extension pipe 7.1 is arranged in the middle of the output gear 7 and upwards passes through the speed reducer rack 10 and the speed reducer fixing shell 8 to be fixedly connected with the chassis support 6, and the corresponding structural details are simple known technologies and are not described herein;
the shifting fork synchronizer A and the shifting fork synchronizer B are in different working states according to the working state change of the washing machine.
Preferably, the washing machine has a polytetrafluoroethylene wear layer on each of the surfaces in relatively sliding engagement.
Example two:
the difference between the second embodiment and the first embodiment is that the upper end of the impeller driving shaft 5 in the second embodiment is a square column, and the square column is inserted into a square counterbore arranged on the impeller 3 to realize the transmission connection between the upper end of the impeller driving shaft 5 and the impeller 3.
The above embodiments are merely preferred embodiments of the present invention, and not intended to limit the structure and scope of the invention. Indeed, many equivalent variations in the shapes, constructions and design objectives of the devices according to the present invention are possible. Therefore, all equivalent changes in the shapes, structures and design objectives of the present invention are intended to be covered by the present invention, and all such equivalent changes are intended to be protected by the present invention.

Claims (10)

1. A speed reducer is characterized in that: the method comprises the following steps:
a pulsator drive shaft (5);
an output gear (7); the output gear (7) is a bevel gear, and an upper extension pipe (7.1) sleeved on the impeller driving shaft (5) is arranged in the middle of the output gear (7);
the transmission gear set comprises a transmission pinion A (15) and a transmission pinion B (20) which are meshed with the output gear (7), and a transmission large gear (13) and an input large gear (22) which respectively rotate synchronously with the transmission pinion A (15) and the transmission pinion B (20); the transmission gearwheel (13) and the input gearwheel (22) are both bevel gears and are meshed with an input gear (21) sleeved on the impeller driving shaft (5);
the synchronizer component comprises a shifting fork synchronizer A and a shifting fork synchronizer B; the synchronizer component is sleeved on the impeller driving shaft (5), synchronously rotates with the impeller driving shaft (5), and can be respectively meshed with the input gear (21) or the output gear (7) along the axial direction for transmission;
the upper end of the impeller driving shaft (5) is connected with the impeller (3) in a transmission way, and the lower end of the impeller driving shaft (5) downwards penetrates through the chassis (12), the chassis support (6), the output gear (7), a synchronizer A (17) and a shifting fork A (16) in the shifting fork synchronizer A, a shifting fork B (18) and a synchronizer B (19) in the shifting fork synchronizer B, and the upper end of an output shaft of a motor (11) positioned below the reducer rack (10) in a transmission way.
2. A decelerator according to claim 1 wherein: the transmission gear set further comprises a second shaft (14), one end of the second shaft can be installed on the speed reducer rack (10) in a rotating mode around the axis of the second shaft, and the transmission large gear (10), the transmission small gear A (15) and the other end of the second shaft (14) are fixedly connected.
3. A decelerator according to claim 1 wherein: the transmission gear set further comprises an input and output shaft (23), one end of the input and output shaft (23) can be installed on the speed reducer rack in a rotating mode around the axis of the input and output shaft, and the input large gear (22), the transmission small gear B (20) and the other end of the input and output shaft (23) are fixedly connected.
4. A decelerator according to claim 3 wherein: the modulus of the output gear (7), the transmission big gear (13), the transmission small gear A (15), the transmission small gear B (20), the input gear (21) and the input big gear (22) is larger than 1.
5. The utility model provides a double dynamical impeller washing machine, includes inner tube (1) and impeller (3), characterized by: a reducer comprising a reducer according to any one of claims 1 to 4, the impeller drive shaft (5) being connected to the impeller (3), the upper extension tube (7.1) being connected to the inner drum.
6. The dual-power pulsator washing machine as claimed in claim 5, wherein: the lower end of the impeller driving shaft (5) is connected with the upper end of an output shaft of a motor (11) positioned below the speed reducer in a transmission way.
7. The dual-power pulsator washing machine as claimed in claim 6, wherein: the side wall of the upper end of the impeller driving shaft (5) is provided with a limiting convex part, the impeller (3) is provided with an installation hole used for connecting the impeller driving shaft (5), and the inner wall of the installation hole is provided with a limiting concave part; the limiting convex part and the limiting concave part are installed in a matched mode, and the impeller driving shaft rotate synchronously.
8. The dual-power pulsator washing machine as claimed in claim 6, wherein: the wave wheel driving shaft (5) is connected with the wave wheel through a spline structure in a transmission way.
9. The dual-power pulsator washing machine as claimed in claim 6, wherein: the upper end of the impeller driving shaft (5) is a prism, and the prism is inserted into a counter bore which is arranged on the impeller (3) and matched with the prism to realize the transmission connection between the upper end of the impeller driving shaft (5) and the impeller (3).
10. The dual-power pulsator washing machine as claimed in claim 5, wherein: the surfaces of the washing machine which are in relative sliding connection are provided with polytetrafluoroethylene wear-resistant layers.
CN202210276949.9A 2022-03-21 2022-03-21 Speed reducer and double-power pulsator washing machine Active CN114990852B (en)

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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86201760U (en) * 1986-03-26 1988-11-09 金汉城 Slip type speed reducer
CN2873847Y (en) * 2005-10-24 2007-02-28 海尔集团公司 Wave wheel driver of vertical washing machine
CN102182811A (en) * 2011-03-27 2011-09-14 欧阳富 Beyond gear shifting implement
KR20120073570A (en) * 2010-12-27 2012-07-05 주식회사 대우일렉트로닉스 Washer and control method thereof
WO2012128567A2 (en) * 2011-03-24 2012-09-27 Lg Electronics Inc. Washing machine with a bi-directionally rotatable tub
WO2016152859A1 (en) * 2015-03-23 2016-09-29 日本電産サンキョー株式会社 Clutch mechanism and motor unit for washing machine
US20160348296A1 (en) * 2015-05-28 2016-12-01 Lg Electronics Inc. Laundry treatment machine
CN107541906A (en) * 2016-06-27 2018-01-05 安徽聚隆传动科技股份有限公司 A kind of washing machine with Rotary Water switch
CN109736047A (en) * 2019-02-25 2019-05-10 大连碧蓝节能环保科技有限公司 Washing machine bipyramid tooth differential deceleration system control methods
CN110777514A (en) * 2018-07-25 2020-02-11 青岛海尔洗衣机有限公司 Washing machine speed reduction clutch and washing machine
CN113249922A (en) * 2020-02-07 2021-08-13 青岛海尔洗衣机有限公司 Washing machine and control method thereof

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86201760U (en) * 1986-03-26 1988-11-09 金汉城 Slip type speed reducer
CN2873847Y (en) * 2005-10-24 2007-02-28 海尔集团公司 Wave wheel driver of vertical washing machine
KR20120073570A (en) * 2010-12-27 2012-07-05 주식회사 대우일렉트로닉스 Washer and control method thereof
WO2012128567A2 (en) * 2011-03-24 2012-09-27 Lg Electronics Inc. Washing machine with a bi-directionally rotatable tub
CN102182811A (en) * 2011-03-27 2011-09-14 欧阳富 Beyond gear shifting implement
WO2016152859A1 (en) * 2015-03-23 2016-09-29 日本電産サンキョー株式会社 Clutch mechanism and motor unit for washing machine
JP2016174877A (en) * 2015-03-23 2016-10-06 日本電産サンキョー株式会社 Clutch mechanism and motor unit for washing machine
US20160348296A1 (en) * 2015-05-28 2016-12-01 Lg Electronics Inc. Laundry treatment machine
CN107541906A (en) * 2016-06-27 2018-01-05 安徽聚隆传动科技股份有限公司 A kind of washing machine with Rotary Water switch
CN110777514A (en) * 2018-07-25 2020-02-11 青岛海尔洗衣机有限公司 Washing machine speed reduction clutch and washing machine
CN109736047A (en) * 2019-02-25 2019-05-10 大连碧蓝节能环保科技有限公司 Washing machine bipyramid tooth differential deceleration system control methods
CN113249922A (en) * 2020-02-07 2021-08-13 青岛海尔洗衣机有限公司 Washing machine and control method thereof

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