MX2014014096A - Washing machine driver. - Google Patents

Washing machine driver.

Info

Publication number
MX2014014096A
MX2014014096A MX2014014096A MX2014014096A MX2014014096A MX 2014014096 A MX2014014096 A MX 2014014096A MX 2014014096 A MX2014014096 A MX 2014014096A MX 2014014096 A MX2014014096 A MX 2014014096A MX 2014014096 A MX2014014096 A MX 2014014096A
Authority
MX
Mexico
Prior art keywords
gear
shaft
washing
clutch
washing machine
Prior art date
Application number
MX2014014096A
Other languages
Spanish (es)
Inventor
Xiaohui Liu
Yiming Hu
Original Assignee
Changzhou Machine Master Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to CN201210165853.1A priority Critical patent/CN102677427B/en
Application filed by Changzhou Machine Master Co Ltd filed Critical Changzhou Machine Master Co Ltd
Priority to PCT/CN2012/081564 priority patent/WO2013174084A1/en
Publication of MX2014014096A publication Critical patent/MX2014014096A/en

Links

Classifications

    • 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 
    • 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/19Gearing
    • Y10T74/19219Interchangeably locked
    • 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/19Gearing
    • Y10T74/19219Interchangeably locked
    • Y10T74/19237Internal-external gears
    • 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/19Gearing
    • Y10T74/19642Directly cooperating gears
    • Y10T74/19647Parallel axes or shafts
    • 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/19Gearing
    • Y10T74/19642Directly cooperating gears
    • Y10T74/19647Parallel axes or shafts
    • Y10T74/19651External type

Abstract

Disclosed is a washing machine driver, comprising an electric motor, a washing axle (51), a dehydration axle sleeve (52) sheathed on the washing axle (51) and a gear reduction mechanism, wherein the washing axle (51) is coaxially mounted inside a motor rotor (23) of the electric motor and is fixed to an output gear (332) of the gear reduction mechanism, and an input gear shaft (31) of the gear reduction mechanism is inserted inside a shaft hole of the motor rotor (23). Since the input gear shaft (31) of the gear reduction mechanism is inserted inside the shaft hole of the motor rotor (23), the motor rotor acts as the gear carrier of the gear reduction mechanism, effectively combining the gear reduction mechanism and the electric motor in one, thereby reducing the axial size of the washing machine driver, making the structure of the washing machine driver simple and compact so as to occupy a small space. Furthermore, since the transmission ratio of the gear reduction mechanism has a large range, a large reduction ratio output can be achieved.

Description

WASHER ACTUATOR The present application claims the priority benefit of Chinese patent application number 201210165853.1 entitled "WASHING MACHINE DRIVER", filed with the State Intellectual Property Office of China on May 24, 2012, the full disclosure of which is incorporated by reference herein. document.
Field of the Invention The present application relates to the technical field of the actuators and, especially, to an actuator for a washing machine.
Background of the Invention A washing machine is a common household appliance in daily life, and has two main operating conditions, which are a washing state and a state of centrifugation.
A conventional drive unit of an existing washing machine consists mainly of an electric motor and a speed reduction clutch mechanism. A common electric motor has a high rotational speed, and in order to obtain a proper rotational speed for the washing state, the rotational speed transmitted from the electric motor to the speed reduction clutch is reduced by a primary pulley. The usual speed reduction clutch mechanisms mainly include a single-stage planetary reduction clutch mechanism, a pulley-type reduction clutch mechanism, and a motor-driven direct-drive clutch mechanism. electric. However, the single-stage planetary reduction clutch mechanism can not transmit speed in a large reduction ratio, which reduces the washing efficiency, and imposes a high demand on the electric motor, thus increasing the cost . When a multi-stage planetary reduction is employed, the cost is increased, and the mechanism becomes complex, non-compact, and unstable. The pulley-type reduction clutch mechanism has a high cost and an imprecise belt transmission ratio, and the belt has a short service life, which also reduces the washing efficiency. In addition, an actuator consisting of the electric motor and the reduction-speed clutch mechanism has a large axial dimension, and a non-compact structure.
In conventional technology, another speed reduction clutch uses a direct drive electric motor instead of the original general indirect electric drive motor. However, most of this type of drive motors are brushless DC motors, and a control unit is required to perform rotation control and other functions, the control unit has a high cost, and this type of Actuators have a large axial dimension, so they are not suitable for long-term development.
Therefore, a technical problem currently being solved by those skilled in the art is to design a washing machine actuator that has a small axial dimension and a compact structure, and that saves space.
Summary of the Invention An object of the present application is to provide a washing machine driver having a small axial dimension and a compact structure, and which saves space.
To address the above technical problems, a washing machine actuator is provided in accordance with the present application, which includes an electric motor, a washing shaft, a spinning tube jacketed in the washing shaft, and a gear reduction mechanism, the washing shaft * being mounted coaxially in a motor rotor of the electric motor and connected in a fixed manner to an output gear of the gear reduction mechanism, and including the gear reduction mechanism an input gear shaft inserted in a hole of the motor rotor shaft. Preferably, the gear reduction mechanism includes a first gear, a second gear, an intermediate gear and the output gear; the first gear and the second gear are fixedly installed at the two ends of the input gear shaft, respectively, the first gear meshes with the intermediate gear, and the second gear meshes with the output gear; and the intermediate gear is jacketed in the spin tube, and the output gear is fixedly connected to the washing shaft.
Preferably, the gear reduction mechanism comprises a double gear, an intermediate gear and the output gear; the double gear is jacketed in the input gear shaft, and the intermediate gear and output gear mesh with a first stage gear and a second gear second gear gear, respectively; and the intermediate gear is jacketed in the spin tube, and the output gear is fixedly connected to the washing shaft.
Preferably, the intermediate gear is an external gear or an internal gear ring.
Preferably, the output gear is an external gear or an internal gear ring.
Preferably, the actuator further includes a clutch device, and the clutch device is disposed between the centrifuge tube and the motor rotor for switching between a washing state and a spin state.
Preferably, a clutch toothed disk of the clutch device is connected to the centrifuge tube through a splined sleeve, and the clutch toothed disc engages the splined sleeve and is axially connected in a sliding manner to the splined sleeve.
Preferably, in the washing state, the clutch toothed disc is engaged with a top end cover of the electric motor; and in the spin state, the clutch toothed disk is engaged with the motor rotor. Preferably, in the washing state, the clutch toothed disk is not fixed; and in the spin state, the clutch toothed disk is engaged with the motor rotor. Preferably, the clutch device is an electromagnetic clutch device or a mechanical clutch device.
Compared with the previous technology, the impeller-type washing machine actuator according to the present application includes an electric motor, a washing shaft, a tube centrifuged jacketed in the washing shaft, and a gear reduction mechanism, coaxially mounting the washing shaft in a motor rotor of the electric motor and being fixedly connected to an output gear of the gear reduction mechanism, and including the gear reduction mechanism an input gear shaft inserted into a shaft hole of the motor rotor. The input gear shaft of the gear reduction mechanism is inserted into the shaft hole of the motor rotor, so that the motor rotor functions as a gear holder of the gear reduction mechanism, which integrates effectively the gear reduction mechanism and the electric motor, and reduces the axial dimension of the washing machine driver, so that the washing machine driver has a simple and compact structure and saves space. In addition, the gear reduction mechanism has a wide range of transmission ratio, thereby achieving transmission in a large reduction ratio.
Description of the Figures of the Invention Figure 1 is a front view of a washing machine driver according to an embodiment of the present application; Fig. 2 is a sectional view of the washing machine actuator of Fig. 1, taken along the direction A-A; Figure 3 is an exploded view of the washing machine actuator of Figure 1; Fig. 4 is a schematic view showing the transmission of the washing machine actuator according to a first embodiment of the present application; Figure 5 is a schematic view showing the transmission of the washing machine driver according to a second embodiment of the present application; Fig. 6 is a schematic view showing the transmission of the washing machine actuator according to a third embodiment of the present application; Figure 7 is a schematic view showing the transmission of the washing machine driver according to a fourth embodiment of the present application; Fig. 8 is a schematic view showing the transmission of the washing machine actuator according to a fifth embodiment of the present application; Fig. 9 is a schematic view showing the transmission of the washing machine actuator according to a sixth embodiment of the present application; Y Fig. 10 is a schematic view showing the transmission of the washing machine actuator according to a seventh embodiment of the present application.
Detailed description of the invention An object of the present application is to provide a washing machine driver, which has a small axial dimension and a compact structure, and which saves space.
For those skilled in the art to better understand the technical solutions of the present application, the present application is described in detail hereinafter in conjunction with the drawings and embodiments.
It should be noted that the terms of location, such as upper and lower, contained in this document are defined by the positions of the pieces and the positional relationship of the pieces. pieces in figures 1 to 10, and only aim to describe clearly and correctly the technical solutions. It is to be understood that, in this document, the location terms should not limit the scope of the present claim being claimed.
Reference is made to Figures 1, 2 and 3. Figure 1 is a front view of a washing machine driver according to an embodiment of the present application; Figure 2 is a sectional view of the washing machine actuator of Figure 1, taken along the direction A-A; and Figure 3 is an exploded view of the washing machine driver of Figure 1.
In one embodiment, the washing machine driver according to the present application includes an electric motor. The electric motor includes a motor housing 21, a motor stator 22 and a motor rotor 23. The motor stator 22 is disposed within the motor housing 21, the motor rotor 23 is disposed coaxially in the motor stator 22, and the motor rotor 23 is provided with a shaft hole. An upper end cover 24 and a lower end cover 25 are provided, respectively, above and below the electric motor. The motor housing 21, the motor stator 22, the upper end cover 24 and the lower end cover 25 can be fixedly connected by bolts. The washing shaft 51 of the washing machine is mounted coaxially in the motor rotor 23, and a rotor bearing 81 is provided which contains oil between the washing shaft 51 and the motor rotor 23. The washing shaft 51 limits the rotor of motor 23 in a radial direction, and a relative rotation is made between the washing shaft 51 and the motor rotor 23 by the rotor bearing 81 containing oil.
A centrifuge tube 52 of the washing machine is encamised in the washing shaft 51, and a washing shaft bearing 82 is provided which contains oil between the centrifuge tube 52 and the washing shaft 51, which performs a relative rotation between the centrifuge tube 52 and the washing shaft 51.
The washing machine actuator further includes a gear reduction mechanism. The gear reduction mechanism includes an input gear shaft 31, a first gear 321, a second gear 322, an intermediate gear 331 and an output gear 332. The input gear shaft 31 is inserted into the shaft hole of the motor rotor 23, a bearing containing oil is provided between the input gear shaft 31 and the motor rotor 23, and a relative rotation is made between the input gear shaft 31 and the motor rotor 23 by the bearing that contains oil. The first gear 321 and the second gear 322 are fixedly installed at the two ends of the input gear shaft 31, respectively. The first gear 321 meshes with the intermediate gear 331, and the second gear 322 meshes with the output gear 332.
The intermediate gear 331 is encased in the centrifuge tube 52. The output gear 332 is fixedly connected to the washing wheel 51, and the fixed connection can be achieved by a straight pin 84. A spacer ring 72 is provided between the washing shaft 51 and output gear 332, flat bearings are provided at the two ends of the motor rotor 23, respectively, and an axial movement of the motor rotor 23 can be limited by the spacer ring 72 and the flat bearings.
It should be noted that, the motor rotor may be provided with multiple shaft holes, i.e., multiple input shaft shafts, and the first gears and second gears cooperating with the multiple input shaft shafts may be inserted into the shaft. motor rotor. Due to the multiple input gear shafts, the combination of the electric motor and the gear reduction mechanism can operate more stably and have a long service life.
A mounting plate 11 is fixedly provided above the upper end cover 24 of the electric motor, and the mounting plate 11 and the upper end cover 24 can be fixedly connected by bolts. The actuator can be mounted in the washing machine through the mounting plate 11.
Reference is made to Figure 4, which is a schematic view showing the transmission of an embodiment of the washing machine driver. During operation, after being energized, the electric motor drives the motor rotor 23 to rotate, and at the same time, drives the input gear shaft 31 connected to the motor rotor 23 and the first gear 321 and the second gear 322 connected fixed to the input gear shaft 31 to orbit. Since the first gear 321 meshes with the intermediate gear 331 and there is a difference between the number of teeth of the first gear 321 and the intermediate gear 331, the input gear shaft 31 is driven to rotate on its own axis. Since the second gear 322 engages with the output gear 332, the output gear 332 is driven to rotate, further driving the washing shaft 51 connected in a manner fixed to the output gear 332 to rotate. Since there is a difference ratio of the number of teeth between the first gear 321, the second gear 322, the intermediate gear 331 and the output gear 332, a difference in speed of rotation between the output gear 332 and the rotor will be generated. of motor 23, thereby driving the washing shaft 51 to transmit at a low speed. Since the intermediate gear 331 is encased in the centrifuge tube 52 and is in a non-fixed state, the centrifuge tube 52 also transmits at a low speed at a certain speed ratio, while the washing shaft 51 transmits to a low speed. Therefore, in a washing state, the electric motor can rotate at a high speed, and the washing shaft 51 can transmit at a low speed through the gear reduction mechanism, thereby increasing efficiency in the use of the electric motor and also achieving a combined output power.
It should be noted that the washing shaft 51 and the centrifuge tube 52 can both transmit at a low speed in the same direction of rotation as can transmit in reverse directions of rotation. Whether the directions of rotation of the washing shaft 51 and the spin tube 52 are the same or opposite, they depend on whether the value of the difference ratio of the number of teeth of the gear reduction mechanism is positive or negative. In practical application, the ratio of the difference in the number of teeth of the gear reduction mechanism can be determined as desired.
It should be noted that, in this embodiment, the intermediate gear 331 and the output gear 332 are both internal gear rings.
Referring to Figure 5, in a second embodiment, the gear reduction mechanism includes a double gear 32, an intermediate gear 331 and an output gear 332. The double gear 32 is encased in an input gear shaft 31 ' , and the intermediate gear 331 and the output gear 332 are engaged, respectively, with a first stage gear 321 and a second stage gear 322 of the double gear 32. The intermediate gear 331 is encased in the centrifuge tube 52, and the output gear 332 is fixedly connected to the washing shaft 51. The intermediate gear 331 and the output gear 332 are both external gear rings.
In the second embodiment, the input gear shaft 31 'is fixedly connected to the motor rotor 23, and the double gear 32 and the input gear shaft 31' can rotate with respect to each other. When the motor rotor 23 is driven to rotate, the double gear 32 is driven to orbit and rotate on its own axis at the same time, and low speed transmission of the washing shaft 51 can also be achieved due to the ratio of the differences of the number of teeth between the first stage gear 321 of the double gear 32, the second stage gear 322 of the double gear 32, the intermediate gear 331 and the output gear 332.
Certainly, the low speed transmission of the washing shaft 51 can also be achieved by rotatingly connecting the input gear shaft 31 'to the motor rotor 23 and connecting the double gear 32 in a fixed manner to the input gear shaft 31 '.
In the second embodiment, or in the first embodiment, the intermediate gear 331 may be an external gear, or an internal gear ring, and the output gear 332 may be an external gear, or an internal gear ring, so that the gear reduction mechanism may have the following various different embodiments.
It should be noted that, in various embodiments, the structures or elements having the same equivalent function or functions are indicated with the same reference numerals in the drawings.
Referring to Figure b, in a third embodiment, the input gear shaft 31 is rotatably inserted in the motor rotor 23, and the first gear 321 and the second gear 322 are fixedly installed at both ends of the input gear shaft 31. The intermediate gear 331 and the output gear 332 are both external gears.
Referring to Figure 7, in a fourth embodiment, the input gear shaft 31 is rotatably inserted in the motor rotor 23, and the first gear 321 and the follow gear 322 are fixedly installed at both ends of the input gear shaft 31. The intermediate gear 331 is an internal gear ring and the output gear 332 is an external gear.
Referring to Figure 8, in the fifth embodiment, the input gear shaft 31 is rotatably inserted into the motor rotor 23, and the first gear 321 and the second gear 322 are fixedly installed in the two ends of the input gear shaft 31. The intermediate gear 331 is an external gear, and the output gear 332 is an internal gear ring.
Referring to Figure 9, in the sixth embodiment, the input gear shaft 31 'is fixedly connected to the motor rotor 23, the double gear 32 and the input gear shaft 31' can rotate one with respect to the other. to the other, and the intermediate gear 331 and the output gear 332 mesh with the first stage gear 321 and the second stage gear 322 of the double gear 32, respectively. The intermediate gear 331 is an internal gear ring and the output gear 332 is an external gear.
Since the two gear stages of the double gear 32 have different number of teeth, according to a seventh embodiment shown in Figure 10, a first stage gear 321 'of the double gear 32 can be engaged with the output gear 332, and a second stage gear 322' can be engaged with the intermediate gear 331. The intermediate gear 331 is still an internal gear ring and the output gear 332 is still an external gear. The principle of the transmission of the various embodiments described above in operation is the same as that of the first embodiment, so it will not be described in the present document.
It should be noted that, in addition to the various previous embodiments, the gear reduction mechanism may have other embodiments, so long as the differential reduction can be achieved and the output mechanism and the motor rotor can produce a rotational speed difference.
A further improvement can be made in the previous washing machine driver.
The washing machine actuator may further include a clutch device 4. The clutch device is disposed between the centrifuge tube 52 and the motor rotor 23, whereby it can perform the switching between the washing state and the condition of the washing machine. centrifuged.
The clutch device 4 can be an electromagnetic clutch device, or a mechanical clutch device. The electromagnetic clutch device is described as an example hereinafter.
The electromagnetic clutch device includes a clutch cover plate 41, a clutch attachment plate 42, a clutch toothing disk 43 and a coil holder 44.
The coil holder 44 is located in an annular groove of the clutch fixing plate 42, the clutch cover plate 41 is disposed above the coil holder 44, and the clutch toothing 43 is located in an inner ring of the clutch fixing plate 42. The clutch cover plate 41, the clutch fixing plate 42 and the coil holder 44 are connected to each other first and then fixedly connected to the cover of upper end 24, and the fixed connection can be achieved by bolts. In addition, a pressure spring 45 can be provided above the clutch toothed disk 43.
The clutch toothed disk 43 is encased in the spin tube 52 through a splined sleeve 71, and the clutch toothed disk 43 meshes with the splined sleeve 71. and it is axially connected in sliding manner to the knurled sleeve 71. It should be noted that the clutch toothed disk 43 and the knurled sleeve 71 are constantly engaged in any operating condition, and can not rotate with respect to each other. The clutch gear disk 43 and the splined sleeve 71 are located at an upper end of a first internal gear ring 331.
When the electromagnetic clutch device is energized to generate a magnetic field, the clutch toothed disk 43 can slide upwardly in an axial direction along the external ridges of the fluted sleeve 71 against the spring force of the pressure spring 45, which disengages the clutch toothed disk 43 of the motor rotor 23. At this time, when the electric motor is energized, the low speed transmission of the washing shaft 51 can be achieved through the gear reduction mechanism, thereby performing the washing function.
It should be noted that a common transmission and a combined output power can be obtained by changing the way of attachment of the clutch device 4.
When the clutch toothed disc 43 is disengaged from the motor rotor 23, the clutch toothing 43 is allowed to mesh with the upper end cover 24, and at this time, the spin tube 52 connected to the clutch toothed disk 43 is in a fixed state, so that in the washing state, only the washing shaft 51 transmits at a low speed, which is a normal washing transmission. When the clutch toothed disc 43 disengages from the motor rotor 23 and is released, the washing shaft 51 transmits at a low speed, and the centrifuge tube 52 also transmits to a low speed in a certain speed ratio, thus obtaining the combined output power. What means that the clutch toothed disc 43 is released is that the clutch toothed disk 43 is not engaged with any of the components that are in a fixed state, ie, the centrifuge tube 52 connected to the clutch toothed disk 43 is also in a non-fixed state.
When the electromagnetic clutch device is de-energized, the magnetic field disappears, and under the spring force of the pressure spring 45, the clutch toothing 43 slides down in the axial direction along the external ridges of the fluted sleeve 71. , which allows the clutch toothed disc 43 to mesh with the motor rotor 23. Since the clutch toothed disk 43 and the fluted sleeve 71 can not rotate with respect to each other, the centrifuge tube 52 connected to the sleeve fluted 71 and intermediate gear 331 jacketed in spin tube 52 are locked with respect to motor rotor 23, which results in self-locking of the gear reduction mechanism. Therefore, the motor rotor 23 and the washing shaft 51 rotate at the same speed, thus achieving the centrifugation function.
It should be noted that, the clutch device can also achieve commutation between the washing state and the spin state by driving other transmission parts of the gear reduction mechanism to engage with, or disengage from, the motor rotor. In the common washing transmission of the washing state, the clutch toothed disk of the clutch device can also be engaged with other fixed parts of the electric motor. There are many provisions of the clutch device, provided that the switching between the washing state and the spin status of the washing machine can be achieved.
In the state of centrifugation, it is required that the centrifuge tube 52 bears the weight of the laundry to be washed, whereby, in order to limit an axial movement of the centrifuge tube 52, a flat bearing can be provided, flat gasket and an elastic retaining ring between the centrifuge tube 52 and the intermediate gear 331 to limit the movement of the centrifuge tube 52 in an axial direction thereof.
To allow the washing shaft 51 and the centrifuge tube 52 to rotate more stably in the spin state, a first bearing 831 is provided between the centrifuge tube 52 and the mounting plate 11, and a second bearing is provided. 832 between the output gear 332 and the lower end cover 25.
In addition, a first water sealing element 61 is provided between the washing shaft 51 and the centrifuge tube 52, and a second water sealing element 62 is provided between the centrifuge tube 52 and the mounting plate 11, with in order to prevent the washing water from entering the interior of the actuator during the operation of the washing machine.
A washing machine driver according to the present application has been described in detail hereinabove. The principle and embodiments of the present application are illustrated herein by specific examples. The above description of examples is only intended to assist in the understanding of the method and spirit of the present application. It should be noted that, for Those skilled in the art, some modifications and improvements may be made to the present application without departing from the principle of the present application, and it is also considered that these modifications and improvements are included in the scope of the present application defined in the claims.

Claims (10)

1. A washing machine actuator, comprising an electric motor, a washing shaft, a centrifuge tube jacketed in the washing shaft, and a gear reduction mechanism, wherein, the washing shaft is mounted coaxially on a motor rotor of the electric motor and is fixedly connected to an output gear of the gear reduction mechanism, and the gear reduction mechanism comprises an input gear shaft inserted in a shaft hole of the motor rotor.
2. The washing machine actuator according to claim 1, wherein the gear reduction mechanism comprises a first gear, a second gear, an intermediate gear and the output gear; the first gear and the second gear are fixedly installed at two ends of the input gear shaft, respectively, the first gear meshes with the intermediate gear and the second gear meshes with the output gear; and the intermediate gear is jacketed in the spin tube and the output gear is fixedly connected to the washing shaft.
3. The washing machine actuator according to claim 1, wherein the gear reduction mechanism comprises a double gear, an intermediate gear and the output gear; the double gear is jacketed in the input gear shaft and the intermediate gear and output gear are engaged with a first stage gear and a second stage gear of the double gear, respectively; and the intermediate gear is jacketed in the spin tube and the output gear is fixedly connected to the washing shaft.
4. The washing machine actuator according to claim 2 or claim 3, wherein the intermediate gear is an external gear or an internal gear ring.
5. The washing machine actuator according to the claim 2 or claim 3, wherein the output gear is an external gear or an internal gear ring.
6. The washing machine actuator according to any one of claims 1 to 3, wherein the actuator further comprises a clutch device, and the clutch device is disposed between the centrifuge tube and the motor rotor for making a commutation between a washing state and a state of centrifugation.
7. The washing machine actuator according to the claim 6, in which a toothed clutch disc of the clutch device is connected to the centrifuge tube through a splined sleeve, and the clutch toothed disc engages with the splined sleeve and is axially connected in a sliding manner to the splined sleeve.
8. The washing machine actuator according to the claim 7, in which in the washing state, the clutch toothed disc is engaged with an upper end cover of the electric motor; and in the spin state, the clutch toothed disk is engaged with the motor rotor.
9. The washing machine actuator according to claim 7, wherein in the washing state, the clutch toothed disk is not fixed; and in the spin state, the clutch toothed disk is engaged with the motor rotor.
10. The washing machine actuator according to claim 6, wherein the clutch device is an electromagnetic clutch device or a mechanical clutch device. SUMMARY OF THE INVENTION Disclosed is a washing machine actuator comprising an electric motor, a washing shaft (51), a dehydration shaft sleeve (52) jacketed on the washing shaft (51) and a gear reduction mechanism, wherein the shaft (51) is mounted coaxially inside a motor rotor (23) of the electric motor and is fixed to an output gear (332) of the gear reduction mechanism, and an input gear shaft (31) of the gear reduction mechanism is inserted into a shaft hole of the motor rotor (23). Since the input gear shaft (31) of the gear reduction mechanism is inserted into the shaft hole of the motor rotor (23), the motor rotor acts as the gear holder of the gear reduction mechanism, combining effectively in one the gear reduction mechanism and the electric motor, thereby reducing the axial size of the washing machine driver, making the structure of the washing machine driver simple and compact in order to occupy a small space. In addition, since the transmission ratio of the gear reduction mechanism has a wide range, an output with a large reduction ratio can be achieved. 1/7 Fig.l
MX2014014096A 2012-05-24 2012-09-19 Washing machine driver. MX2014014096A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201210165853.1A CN102677427B (en) 2012-05-24 2012-05-24 Washing machine driver
PCT/CN2012/081564 WO2013174084A1 (en) 2012-05-24 2012-09-19 Washing machine driver

Publications (1)

Publication Number Publication Date
MX2014014096A true MX2014014096A (en) 2015-06-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
MX2014014096A MX2014014096A (en) 2012-05-24 2012-09-19 Washing machine driver.

Country Status (7)

Country Link
US (1) US20150159312A1 (en)
KR (1) KR20150022842A (en)
CN (1) CN102677427B (en)
BR (1) BR112014028936A2 (en)
IN (1) IN2014DN10325A (en)
MX (1) MX2014014096A (en)
WO (1) WO2013174084A1 (en)

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CN103422325B (en) 2012-05-24 2015-12-23 常州至精精机有限公司 Washing machine two even power output method, device, washing machine and washing methods
CN103023427A (en) * 2012-12-27 2013-04-03 合肥荣事达三洋电器股份有限公司 Driver and variable-frequency motor integrated driving system
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KR20150022842A (en) 2015-03-04
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US20150159312A1 (en) 2015-06-11
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BR112014028936A2 (en) 2017-06-27

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