WO2013174084A1 - 一种洗衣机驱动器 - Google Patents

一种洗衣机驱动器 Download PDF

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Publication number
WO2013174084A1
WO2013174084A1 PCT/CN2012/081564 CN2012081564W WO2013174084A1 WO 2013174084 A1 WO2013174084 A1 WO 2013174084A1 CN 2012081564 W CN2012081564 W CN 2012081564W WO 2013174084 A1 WO2013174084 A1 WO 2013174084A1
Authority
WO
WIPO (PCT)
Prior art keywords
gear
washing
shaft
washing machine
clutch
Prior art date
Application number
PCT/CN2012/081564
Other languages
English (en)
French (fr)
Inventor
刘晓辉
胡义明
陈昌
Original Assignee
常州至精精机有限公司
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
Application filed by 常州至精精机有限公司 filed Critical 常州至精精机有限公司
Priority to US14/401,881 priority Critical patent/US20150159312A1/en
Priority to KR20147035521A priority patent/KR20150022842A/ko
Priority to MX2014014096A priority patent/MX2014014096A/es
Priority to BR112014028936A priority patent/BR112014028936A8/pt
Priority to IN10325DEN2014 priority patent/IN2014DN10325A/en
Publication of WO2013174084A1 publication Critical patent/WO2013174084A1/zh

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Classifications

    • 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 
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/30—Driving arrangements 
    • D06F37/304—Arrangements or adaptations of electric motors
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19219—Interchangeably locked
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19219—Interchangeably locked
    • Y10T74/19237—Internal-external gears
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19642—Directly cooperating gears
    • Y10T74/19647—Parallel axes or shafts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19642—Directly cooperating gears
    • Y10T74/19647—Parallel axes or shafts
    • Y10T74/19651—External type

Definitions

  • the present invention relates to the field of driver technologies, and in particular, to a washing machine driver.
  • the washing machine is a household appliance commonly used in daily life, and its main working state can be divided into washing conditions and dehydrating conditions.
  • the conventional drive unit of the existing washing machine is mainly composed of a motor and a deceleration clutch device.
  • the normal motor speed is high, and in order to obtain a proper washing speed, the motor is transmitted to the deceleration clutch to be decelerated by the primary pulley.
  • the commonly used deceleration clutch devices mainly include a single-stage planetary reduction transmission clutch mechanism, a pulley-type deceleration motion clutch mechanism or a motor direct drive transmission clutch mechanism.
  • the single-stage planetary reduction clutch mechanism can not achieve the large speed ratio deceleration output, the washing efficiency is reduced, the requirements on the motor will be high, and the cost will increase; if the multi-stage planetary deceleration output is adopted, not only will the cost increase but also the mechanism change. It is complicated, not compact, and unstable; the pulley-type reduction transmission clutch mechanism has high cost, and the belt transmission ratio is inaccurate, the belt life is low, and the washing efficiency is also lowered.
  • the above-mentioned motor and the deceleration clutch device have a larger axial dimension and a less compact structure.
  • the present invention provides a washing machine driver including a motor, a washing shaft, a dewatering bushing disposed on the washing shaft, and a gear reduction mechanism, the washing shaft being coaxially mounted on a motor rotor of the motor Internally and fixedly connected to an output gear of the gear reduction mechanism, an input gear shaft of the gear reduction mechanism is inserted into a shaft hole of the motor rotor.
  • the gear reduction mechanism includes a first gear, a second gear, an intermediate gear, and an output gear; the first gear and the second gear are fixed at both ends of the input gear shaft, the first a gear meshes with the intermediate gear, the second gear meshes with the output gear; the intermediate gear is sleeved on the dewatering bushing, and the output gear is fixed to the washing shaft.
  • the gear reduction mechanism includes a double gear, an intermediate gear and an output gear; the double gear is set on the input gear shaft, and the intermediate gear and the output gear are respectively coupled to the double gear The first stage gear and the second stage gear mesh; the intermediate gear is sleeved on the dewatering sleeve, and the output gear is fixed to the washing shaft.
  • the intermediate gear is an external gear or an internal gear.
  • the output gear is an external gear or an internal gear.
  • the driver further includes a clutching device disposed between the dewatering bushing and the rotor of the motor to effect a transition between a washing condition and a dewatering condition.
  • the clutch sprocket of the clutch device is coupled to the dewatering sleeve by a spline sleeve, and the clutch sprocket is engaged with the spline sleeve and axially slidably coupled.
  • the clutch toothed disc is engaged with the upper end cover of the motor; in the dehydration condition, the clutch toothed disc is engaged with the motor rotor.
  • the clutch sprocket is not fixed during the washing condition; and the clutch sprocket is engaged with the motor rotor during the dehydrating condition.
  • the clutch device is an electromagnetic clutch device or a mechanical clutch device.
  • the driver of the pulsator washing machine comprises a motor, a washing shaft, a dewatering sleeve fitted on the washing shaft, and a gear reduction mechanism, and the washing shaft is coaxially mounted on the motor of the motor
  • the inside of the rotor is fixed to an output gear of the gear reduction mechanism, and an input gear shaft of the gear reduction mechanism is inserted into a shaft hole of the motor rotor.
  • the motor rotor Since the input gear shaft of the gear reduction mechanism is inserted into the shaft hole of the motor rotor, the motor rotor is used as The gear frame of the gear reduction mechanism effectively integrates the gear reduction mechanism and the motor, thereby reducing the axial size of the washing machine driver, so that the structure of the washing machine driver is compact and takes up little space. In addition, since the gear ratio of the gear reduction mechanism is large, a large reduction ratio output can be realized.
  • FIG. 1 is a front elevational view of a specific embodiment of a washing machine drive provided by the present invention
  • FIG. 2 is a cross-sectional view of the washing machine drive A-A of FIG.
  • FIG 3 is an exploded perspective view of the washing machine driver of Figure 1;
  • FIG. 4 is a schematic diagram of the transmission of the first embodiment of the washing machine driver provided by the present invention.
  • FIG. 5 is a transmission schematic diagram of a second embodiment of a washing machine drive provided by the present invention.
  • FIG. 6 is a schematic diagram of a transmission of a third embodiment of the washing machine driver provided by the present invention.
  • FIG. 7 is a transmission diagram 8 of a fourth embodiment of a washing machine driver provided by the present invention.
  • FIG. 5 is a transmission diagram of a fifth embodiment of a washing machine driver according to the present invention.
  • Figure 10 is a schematic diagram of the transmission of the seventh embodiment of the washing machine drive provided by the present invention.
  • the core of the present invention is to provide a washing machine drive having a small axial size, a compact structure, and a small footprint.
  • FIG. 1 is a front view of a washing machine driver according to the present invention
  • FIG. 2 is a cross-sectional view of the washing machine driver AA of FIG. 1
  • the washing machine driver provided by the present invention comprises a motor; the motor comprises a motor casing 21, a motor stator 22 and a motor rotor 23, and the motor stator 22 is disposed in the motor casing 21, and the motor rotor 23 is the same
  • the shaft center is disposed 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 respectively disposed above and below the motor; the motor case 21, the motor stator 22, and the upper end cover can be bolted 24 is fixedly connected to the lower end cover 25.
  • the washing shaft 51 of the washing machine is coaxially mounted in the rotor 23 of the motor, the washing shaft 51 and the rotor of the motor
  • a rotor oil-impregnated bearing 81 is provided, the washing shaft 51 radially defines the motor rotor 23, and relative rotation between the washing shaft 51 and the motor rotor 23 is achieved by the rotor oil-impregnated bearing 81.
  • the dewatering sleeve 52 of the washing machine is set on the washing shaft 51, the dewatering sleeve 52 and the washing shaft
  • a washing shaft oil bearing shaft 7 82 is provided between 51, so that the dewatering sleeve 52 and the washing shaft 51 can be relatively rotated.
  • the washing machine drive further includes a gear reduction mechanism including 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 motor rotor 23.
  • a gear reduction mechanism including 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 motor rotor 23.
  • an oil bearing is disposed between the input gear shaft 31 and the motor rotor 23, and relative rotation between the input gear shaft 31 and the motor rotor 23 through the oil bearing is performed; the first gear 321 and the second gear 322 are fixed at the input. Both ends of the gear shaft 31; the first gear 321 and the intermediate gear 331 are meshed, and the second gear 322 and the output gear 332 are meshed.
  • the intermediate gear 331 is fitted on the dewatering bushing 52; the output gear 332 is fixedly connected to the washing wheel 51, and the fixed connection can be realized by the direct wire 84.
  • a distance ring 72 is disposed between the washing shaft 51 and the output gear 332, and a planar bearing is disposed at each end of the motor rotor 23, and the axial movement of the motor rotor 23 can be restricted by the arrangement of the distance ring 72 and the planar bearing. .
  • the shaft hole of the motor rotor can be set to multiple, that is, a plurality of input gear shafts and a first gear and a second gear matched thereto can be inserted in the rotor of the motor; arrangement of the plurality of input gear shafts
  • the combination of the motor and the gear reduction mechanism can be made more stable during operation and prolong the working life.
  • a mounting plate 11 is fixedly coupled to the upper end cover 24 of the motor, and the mounting plate 11 and the upper end cover 24 can be fixedly connected by bolts; the above-mentioned driver is mounted on the washing machine through the mounting plate 11.
  • FIG. 4 there is shown a transmission schematic of one embodiment of the washing machine drive.
  • the driving motor rotor 23 rotates, and at the same time, the input gear shaft 31 connected to the motor rotor 23 and the first gear 321 and the second gear 322 fixed to the input gear shaft 31 are revolved, and the first gear 321 is
  • the intermediate gear 331 is meshed and has a difference in the number of teeth, and the input gear shaft 31 can be driven to rotate at the same time, and the meshing drive output gear 332 is rotated by the meshing of the second gear 322 and the output gear 332, and finally the washing shaft 51 fixedly coupled to the output gear 332 is rotated;
  • the 331 is set on the dewatering sleeve
  • the dewatering sleeve 52 is also output at a low speed at a constant speed ratio. Therefore, when the washing condition is used, the motor can be rotated at a high speed, and the low-speed output of the washing shaft 51 is realized by the gear reduction mechanism, thereby improving the use efficiency of the motor and simultaneously realizing the composite power output.
  • washing shaft 51 and the dewatering sleeve 52 can be outputted at the same time as the low speed output or the reverse direction.
  • the steering of the washing shaft 51 and the dewatering bushing 52 is the same or opposite, depending on the positive and negative values of the gear ratio ratio of the gear reduction mechanism. In practical applications, the tooth difference relationship of the gear reduction mechanism can be set as needed.
  • the intermediate gear 331 and the output gear 332 are both internal gears.
  • the gear reduction mechanism includes a double gear 32, an intermediate gear 331 and an output gear 332; the double gear 32 is sleeved on the input gear shaft 31, and the intermediate gear 331 And the output gear 332 respectively meshes with the first stage gear 321 and the second stage gear 322 of the double gear 32; the intermediate gear 331 is fitted on the dewatering sleeve 52, and the output gear 332 is fixed to the washing shaft 51; wherein, the intermediate gear 331 And the output gear 332 are both external gears.
  • the input gear shaft 31 is fixedly connected to the motor rotor 23, and the double gear 32 and the input gear shaft 31 are relatively rotatable.
  • the double gear 32 is simultaneously driven.
  • the purpose of the low-speed output of the washing shaft 51 can also be achieved according to the tooth difference relationship between the first-stage gear 321, the second-stage gear 322, the intermediate gear 331, and the output gear 332 of the double gear 32.
  • the input gear shaft 31 can also be rotatably connected to the motor rotor 23, and the double gear 32 can be fixedly connected to the input gear shaft 3 ,, and the washing shaft 51 can also be output at a low speed.
  • the intermediate gear 331 may be an external gear or an internal gear
  • the output gear 332 may be an external gear
  • the input gear shaft 31 is rotatably inserted into the motor rotor 23, and the first gear 321 and the second gear 322 are fixed at both ends of the input gear shaft 31; wherein, the middle The gear 331 and the output gear 332 are both external gears.
  • the input gear shaft 31 is rotatably inserted into the motor rotor 23, and the first gear 321 and the second gear 322 are fixed at both ends of the input gear shaft 31; wherein, the middle The gear 331 is an internal gear, and the output gear 332 is an external gear.
  • the input gear shaft 31 is rotatably inserted into the motor rotor 23, and the first gear 321 and the second gear 322 are fixed at both ends of the input gear shaft 31; wherein, the middle The gear 331 is an external gear, and the output gear 332 is an internal gear.
  • the input gear shaft 31 is fixedly coupled to the motor rotor 23, the double gear 32 and the input gear shaft 31 are relatively rotatable, and the intermediate gear 331 and the output gear 332 are respectively coupled with the double
  • the first stage gear 321 of the interlocking gear 32 meshes with the second stage gear 322; wherein the intermediate gear 331 is an internal gear and the output gear 332 is an external gear.
  • the first stage gear 321 of the double gear 32 can be meshed with the output gear 332, and the second stage gear 322 is meshed with the intermediate gear 331, wherein the intermediate gear 331 still For the internal spur, the output gear 332 is still an external gear, which is a seventh embodiment, as shown in FIG.
  • the above several embodiments are the same as the transmission principle of the first embodiment in the working process, and are not described herein again. However, other embodiments are also possible, as long as differential deceleration can be achieved, so that the output mechanism and the motor rotor can generate a difference in rotational speed.
  • the washing machine drive further includes a clutching device 4 disposed between the dewatering sleeve 52 and the motor rotor 23 to effect the conversion of the washing and dewatering conditions.
  • the clutch device 4 can be an electromagnetic clutch device or a mechanical clutch device.
  • the electromagnetic clutch device will be described as an example below.
  • the electromagnetic clutch device includes a clutch cover plate 41, a clutch fixing plate 42, a clutch gear plate 43 and a wire frame 44; the wire frame 44 is located in an annular groove of the clutch fixing plate 42, and the clutch cover plate 41 is disposed above the wire frame 44.
  • the clutch sprocket 43 is located at the inner side of the clutch fixing plate 42; wherein the clutch cover 41, the clutch fixing plate 42 and the wire frame 44 are connected and then fixedly connected to the upper end cover 24, and can be fixedly connected by bolts; above the clutch spur 43
  • a compression spring 45 is also provided.
  • the clutch spur 43 is fitted over the dewatering sleeve 52 by the spline sleeve 71, and the clutch spur 43 and the spline sleeve 71 are engaged and axially slidably coupled. It should be noted here that the clutch spur 43 and the spline sleeve 71 are engaged in any working condition, and no relative rotation can be made between the two.
  • the clutch spur 43 and the spline sleeve 71 are located at the upper end of the first internal spurs 331.
  • the clutch toothed disc 43 When the electromagnetic clutch device generates a magnetic field after being energized, the clutch toothed disc 43 can axially slide upward through the external spline of the spline sleeve 71 against the elastic force of the compression spring 45, so that the clutch toothed disc 43 is disconnected from the motor rotor 23, and the motor is After the power is turned on, the low-speed output of the washing shaft 51 can be realized by the gear reduction mechanism to realize the washing function.
  • the clutch spur 43 when the clutch spur 43 is disconnected from the motor rotor 23, the clutch spur 43 can be engaged with the upper end cover 24, and the dewatering sleeve 52 connected to the clutch spur 43 is in a fixed state, thereby washing In the working condition, only the low-speed output of the washing shaft 51 is the ordinary washing output; The clutch gear 43 is disconnected from the motor rotor 23 and is not fixed.
  • the term "unfixed" means that the clutch disk 43 is not engaged with any member in a fixed state, that is, the dewatering sleeve 52 connected to the clutch ring 43 is also In the unfixed state, at this time, while the washing shaft 51 is output at a low speed, the dewatering sleeve 52 is also output at a low speed at a certain speed ratio, that is, a composite power output can be realized.
  • the clutch device can also realize the conversion of the washing condition and the dehydration condition by engaging or disconnecting the other transmission members of the gear reduction mechanism with the motor rotor; in the washing condition, the common washing output, the clutch The clutch sprocket of the device can also be engaged with other fixing members of the motor; the setting of the clutch device can be achieved as long as the washing condition and the dehydration condition of the washing machine can be realized.
  • a flat bearing, a flat cushion and an elasticity may be provided between the dewatering sleeve 52 and the intermediate gear 331.
  • the damper is used to limit the movement of the dewatering sleeve 52 in its axial direction.
  • a first bearing 831 is disposed between the dewatering sleeve 52 and the mounting plate 11, and is disposed between the output gear 332 and the lower end cover 25. There is a second bearing 832.
  • a first water seal 61 is disposed between the washing shaft 51 and the dewatering sleeve 52
  • a second water seal 62 is disposed between the dewatering sleeve 52 and the mounting plate 11 for preventing the washing water from entering during the operation of the washing machine.

Abstract

一种洗衣机驱动器，包括电机、洗涤轴（51）、套装在所述洗涤轴（51）上的脱水轴套（52）和齿轮减速机构，所述洗涤轴（51）同轴安装于所述电机的电机转子（23）内部且与所述齿轮减速机构的输出齿轮（332）固接，所述齿轮减速机构的输入齿轮轴（31）插装于所述电机转子（23）的轴孔内。由于将齿轮减速机构的输入齿轮轴（31）插装在电机转子（23）的轴孔内，使电机转子作为齿轮减速机构的齿轮架，有效地将齿轮减速机构和电机集成为一体，从而减小了洗衣机驱动器的轴向尺寸，使得该洗衣机驱动器的结构简单紧凑，占用空间小。此外，由于齿轮减速机构的传动比范围大，可以实现大减速比输出。

Description

一种洗衣机驱动器 本申请要求于 2012 年 5 月 24 日提交中国专利局、 申请号为 201210165853.1、 发明名称为"一种洗衣机驱动器"的中国专利申请的优先 权， 其全部内容通过引用结合在本申请中。 技术领域
本发明涉及驱动器技术领域， 特别是涉及一种洗衣机驱动器。
背景技术
洗衣机是日常生活中常用的家用电器， 其主要工作状态可以分为洗涤 工况和脱水工况。
现有洗衣机的常规驱动单元主要由电机和减速离合装置组成， 普通电 机转速较高， 为得到合适的洗涤转速， 电机传递到减速离合器通过一级皮 带轮减速。目前常用的减速离合装置主要有单级行星减速传动离合器机构、 皮带轮式减速运动离合器机构或电机直驱式传动离合器机构。 但是， 单级 行星减速离合器机构不能做到大速比减速输出， 洗涤效率降低， 对电机的 要求将会很高， 增加成本； 如果采用多级行星减速输出， 不仅会增加成本 还会使机构变得复杂、 不紧凑、 不稳定； 皮带轮式减速传动离合机构的成 本高， 而且皮带传动比不准确， 皮带的寿命低， 也会降低洗涤效率。 另夕卜， 上述电机和减速离合装置组成的驱动器的轴向尺寸较大， 结构不紧凑。
现有技术中还有一种减速离合器， 把原来的普通电机由间接驱动改为 直接驱动， 但这种驱动电机多为直流无刷电机， 为控制器转动等功能需要 控制单元， 该控制单元的成本较高， 且该种驱动器的轴向尺寸较大， 不适 合长远发展。
因此， 如何设计出一种轴向尺寸小、 结构紧凑、 占用空间小的洗衣机 驱动器， 是本领域技术人员目前需要解决的技术问题。 发明内容
本发明的目的是提供一种洗衣机驱动器， 该洗衣机驱动器的轴向尺寸 小、 结构紧凑、 占用空间小。
为解决上述技术问题， 本发明提供一种洗衣机驱动器， 包括电机、 洗 涤轴、 套装在所述洗涤轴上的脱水轴套和齿轮减速机构， 所述洗涤轴同轴 安装于所述电机的电机转子内部且与所述齿轮减速机构的输出齿轮固接， 所述齿轮减速机构的输入齿轮轴插装于所述电机转子的轴孔内。
优选地， 所述齿轮减速机构包括第一齿轮、 第二齿轮、 中间齿轮和输 出齿轮； 所述第一齿轮和所述第二齿轮固装在所述输入齿轮轴的两端， 所 述第一齿轮与所述中间齿轮啮合， 所述第二齿轮与所述输出齿轮啮合； 所 述中间齿轮套装在所述脱水轴套上， 所述输出齿轮与所述洗涤轴固接。
优选地， 所述齿轮减速机构包括双联齿轮、 中间齿轮和输出齿轮； 所 述双联齿轮套装在所述输入齿轮轴上， 所述中间齿轮和所述输出齿轮分别 与所述双联齿轮的第一级齿轮和第二级齿轮啮合； 所述中间齿轮套装在所 述脱水轴套上， 所述输出齿轮与所述洗涤轴固接。
优选地， 所述中间齿轮为外齿轮或内齿圏。
优选地， 所述输出齿轮为外齿轮或内齿圏。
优选地， 所述驱动器进一步包括离合装置， 所述离合装置设置于所述 脱水轴套和所述电机转子之间， 以便实现洗涤工况和脱水工况的转换。
优选地，所述离合装置的离合器齿盘与所述脱水轴套通过花键套连接， 所述离合器齿盘与所述花键套啮合且轴向滑动连接。
优选地， 洗涤工况时， 所述离合器齿盘与所述电机的上端盖卡合； 脱 水工况时， 所述离合器齿盘与所述电机转子卡合。
优选地， 洗涤工况时， 所述离合器齿盘不固定； 脱水工况时， 所述离 合器齿盘与所述电机转子啮合。
优选地， 所述离合装置为电磁离合装置或机械离合装置。
相对上述背景技术， 本发明所提供的波轮洗衣机的驱动器包括电机、 洗涤轴、 套装在所述洗涤轴上的脱水轴套和齿轮减速机构， 所述洗涤轴同 轴安装于所述电机的电机转子内部且与所述齿轮减速机构的输出齿轮固 接， 所述齿轮减速机构的输入齿轮轴插装于所述电机转子的轴孔内。 由于 将齿轮减速机构的输入齿轮轴插装在电机转子的轴孔内， 使电机转子作为 齿轮减速机构的齿轮架， 有效地将齿轮减速机构和电机集成为一体， 从而 减小了洗衣机驱动器的轴向尺寸， 使得该洗衣机驱动器的结构筒单紧凑， 占用空间小。 此外， 由于齿轮减速机构的传动比范围大， 可以实现大减速 比输出。
附图说明
图 1为本发明所提供洗衣机驱动器一种具体实施方式的正视图； 图 2为图 1所示洗衣机驱动器 A-A方向的剖视图；
图 3为图 1所示洗衣机驱动器的分解示意图；
图 4 为本发明所提供洗衣机驱动器第一种具体实施方式的传动示意
5 为本发明所提供洗衣机驱动器第二种具体实施方式的传动示意 6 为本发明所提供洗衣机驱动器第三种具体实施方式的传动示意 图
7 为本发明所提供洗衣机驱动器第四种具体实施方式的传动示意 8 为本发明所提供洗衣机驱动器第五种具体实施方式的传动示意 9 为本发明所提供洗衣机驱动器第六种具体实施方式的传动示意 10 为本发明所提供洗衣机驱动器第七种具体实施方式的传动示意
具体实施方式
本发明的核心是提供一种洗衣机驱动器， 该洗衣机驱动器的轴向尺寸 小、 结构紧凑、 占用空间小。
为了使本技术领域的人员更好地理解本发明方案， 下面结合附图和具 体实施方式对本发明作进一步的详细说明。 需要指出的是，本文中涉及的上、下等方位词是以图 1至图 10中零部 件位于图中及零部件相互之间的位置来定义的， 只是为了表述技术方案的 清楚及方便。 应当理解， 本文所采用的方位词不应限制本申请文件请求保 护的范围。
请参考图 1、 图 2和图 3 , 图 1为本发明所提供洗衣机驱动器一种具体 实施方式的正视图； 图 2为图 1所示洗衣机驱动器 A-A方向的剖视图； 图 3为图 1所示洗衣机驱动器的分解示意图。
在一种具体实施方式中， 本发明所提供的洗衣机驱动器包括电机； 所 述电机包括电机壳 21、 电机定子 22和电机转子 23 , 电机定子 22设置于电 机壳 21内， 电机转子 23同轴心设置于电机定子 22内， 电机转子 23上设 置有轴孔； 在电机的上方和下方分别设置有上端盖 24和下端盖 25; 可以 通过螺栓将电机壳 21、 电机定子 22、 上端盖 24和下端盖 25固定连接。
洗衣机的洗涤轴 51同轴安装于电机转子 23内，洗涤轴 51和电机转子
23之间设置有转子含油轴承 81 , 洗涤轴 51径向限定电机转子 23 , 并通过 转子含油轴承 81实现洗涤轴 51和电机转子 23之间的相对转动。
洗衣机的脱水轴套 52套装在洗涤轴 51上，脱水轴套 52和所述洗涤轴
51之间设置有洗涤轴含油轴 7 82,使脱水轴套 52和洗涤轴 51可以相对转 动。
所述洗衣机驱动器还包括齿轮减速机构， 所述齿轮减速机构包括输入 齿轮轴 31、 第一齿轮 321、 第二齿轮 322、 中间齿轮 331和输出齿轮 332; 输入齿轮轴 31插装于电机转子 23的轴孔内， 输入齿轮轴 31和电机转子 23之间设置有含油轴承， 通过含油轴承输入齿轮轴 31和电机转子 23之间 可以实现相对转动； 第一齿轮 321和第二齿轮 322 固装在输入齿轮轴 31 的两端；第一齿轮 321和中间齿轮 331啮合，第二齿轮 322和输出齿轮 332 啮合。
中间齿轮 331套装在所述脱水轴套 52上； 输出齿轮 332与洗涤轮 51 固定连接， 可以通过直销 84实现固定连接。 在洗涤轴 51和输出齿轮 332 之间设置有定距环 72, 在电机转子 23的两端分别设置有平面轴承， 通过 定距环 72和平面轴承的设置， 可以限制电机转子 23的轴向移动。 这里需要说明的是， 电机转子的轴孔可以设置为多个， 即可以在电机 转子内插装多个输入齿轮轴和与之配合的第一齿轮和第二齿轮； 多个输入 齿轮轴的布置可以使得电机和齿轮减速机构的组合在工作时更加稳定， 延 长工作寿命。
在电机上端盖 24的上方固定连接有安装盘 11 , 可以通过螺栓将安装 盘 11和上端盖 24固定连接;通过安装盘 11将上述驱动器安装在洗衣机上。
参考图 4, 图 4中所示为所述洗衣机驱动器一种具体实施方式的传动 示意图。 工作时， 电机通电后， 驱动电机转子 23转动， 同时驱动与电机转 子 23连接的输入齿轮轴 31及与输入齿轮轴 31固装的第一齿轮 321和第二 齿轮 322公转， 第一齿轮 321与中间齿轮 331啮合且存在齿数差， 可同时 驱动输入齿轮轴 31 自转，通过第二齿轮 322与输出齿轮 332的啮合驱动输 出齿轮 332转动， 最后驱动与输出齿轮 332固接的洗涤轴 51转动； 由于第 一齿轮 321、第二齿轮 322、 中间齿轮 331和输出齿轮 332之间存在齿差关 系，所以输出齿轮 332和电机转子 23之间会产生转速差，从而驱动洗涤轴 51低速输出； 由于中间齿轮 331套装在脱水轴套 52上且处于不固定状态， 所以在洗涤轴 51低速输出的同时，脱水轴套 52也按一定的速比低速输出。 所以洗涤工况时， 电机可以高速转动， 通过齿轮减速机构实现洗涤轴 51 低速输出， 提高了电机的使用效率， 同时还实现了复合动力输出。
这里需要说明的是，洗涤轴 51和脱水轴套 52既可以同转向低速输出， 也可以反向输出。 洗涤轴 51和脱水轴套 52的转向相同或相反， 取决于齿 轮减速机构齿差比值的正负值， 在实际应用中， 可以根据需要设定齿轮减 速机构的齿差关系。
这里还需要说明的是，该种实施方式中，中间齿轮 331和输出齿轮 332 均为内齿圏。
参考图 5 , 在第二种具体实施方式中， 所述齿轮减速机构包括双联齿 轮 32、 中间齿轮 331和输出齿轮 332; 所述双联齿轮 32套装在输入齿轮轴 31，上，中间齿轮 331和输出齿轮 332分别与双联齿轮 32的第一级齿轮 321 和第二级齿轮 322啮合； 中间齿轮 331套装在脱水轴套 52上， 输出齿轮 332与洗涤轴 51固接； 其中， 中间齿轮 331和输出齿轮 332均为外齿轮。 第二种具体实施方式中， 输入齿轮轴 31，与电机转子 23固定连接， 双 联齿轮 32和输入齿轮轴 31，之间可以相对转动， 当驱动电机转子 23转动 时，同时驱动双联齿轮 32公转且自转，根据双联齿轮 32的第一级齿轮 321、 第二级齿轮 322、 中间齿轮 331以及输出齿轮 332之间的齿差关系同样可 以达到洗涤轴 51低速输出的目的。
当然， 也可以将输入齿轮轴 31，与电机转子 23转动连接， 双联齿轮 32 与输入齿轮轴 3 Γ固定连接， 同样可以实现洗涤轴 51低速输出。
在第二种实施方案或前述第一种实施方案中， 所述中间齿轮 331可以 为外齿轮， 也可以为内齿圏， 所述输出齿轮 332可以为外齿轮， 也可以为 需要指出的是， 各实施例中功能相同或相通的结构或构件在图中用相 同的标记进行标示。
参考图 6, 在第三种实施方式中， 输入齿轮轴 31转动插装于电机转子 23内， 第一齿轮 321和第二齿轮 322固装在输入齿轮轴 31的两端； 其中， 所述中间齿轮 331和所述输出齿轮 332均为外齿轮。
参考图 7, 在第四种实施方式中， 输入齿轮轴 31转动插装于电机转子 23内， 第一齿轮 321和第二齿轮 322固装在输入齿轮轴 31的两端； 其中， 所述中间齿轮 331为内齿圏， 所述输出齿轮 332为外齿轮。
参考图 8, 在第五种实施方式中， 输入齿轮轴 31转动插装于电机转子 23内， 第一齿轮 321和第二齿轮 322固装在输入齿轮轴 31的两端； 其中， 所述中间齿轮 331为外齿轮， 所述输出齿轮 332为内齿圏。
参考图 9, 在第六种实施方式中， 输入齿轮轴 31，与电机转子 23固定 连接， 双联齿轮 32和输入齿轮轴 31，之间可以相对转动， 中间齿轮 331和 输出齿轮 332分别与双联齿轮 32的第一级齿轮 321和第二级齿轮 322啮合； 其中中间齿轮 331为内齿圏， 输出齿轮 332为外齿轮。
由于双联齿轮 32两级齿轮的齿数不同， 所以还可以将双联齿轮 32的 第一级齿轮 321，与输出齿轮 332啮合， 第二级齿轮 322，与中间齿轮 331啮 合， 其中中间齿轮 331仍为内齿圏， 输出齿轮 332仍为外齿轮， 此为第七 种实施方式， 如图 10所示。 上述几种实施方式在工作过程中与第一种具体实施方式的传动原理相 同， 这里不再赘述。 然还可以有其他的实施方式， 只要可以实现差动减速， 使输出机构和电机 转子可以产生转速差即可。
可对上述洗衣机驱动器做出进一步的改进。
进一步地， 所述洗衣机驱动器还包括离合装置 4, 所述离合装置设置 在脱水轴套 52和电机转子 23之间，以便实现洗涤工况和脱水工况的转换。
所述离合装置 4可以为电磁离合装置， 也可以为机械离合装置。 下面 以电磁离合装置为例进行说明。
具体地， 电磁离合装置包括离合器盖板 41、 离合器固定板 42、 离合器 齿盘 43以及线架 44; 线架 44位于离合器固定板 42的环形 槽内， 离合 器盖板 41设置于线架 44的上方， 离合器齿盘 43位于离合器固定板 42的 内圏； 其中离合器盖板 41、 离合器固定板 42和线架 44连接后再固定连接 到上端盖 24上， 可以通过螺栓固定连接； 离合器齿盘 43上方还设置有压 簧 45。
离合器齿盘 43通过花键套 71套装在脱水轴套 52上， 离合器齿盘 43 和花键套 71啮合且轴向滑动连接。 这里需要说明的是， 离合器齿盘 43和 花键套 71在任何工况下均处于啮合状态， 且两者之间不能产生相对转动。 离合器齿盘 43和花键套 71位于第一内齿圏 331的上端。
当电磁离合装置通电后产生磁场， 离合器齿盘 43可以克服压簧 45的 弹力通过花键套 71的外花键轴向向上滑动， 使得离合器齿盘 43与电机转 子 23断开连接， 此时电机通电后， 可以通过齿轮减速机构实现洗涤轴 51 低速输出， 实现洗涤功能。
需要指出的是， 可以通过改变离合装置 4的固定方式实现普通输出和 复合动力输出。
具体地， 当离合器齿盘 43与电机转子 23断开连接时， 可使离合器齿 盘 43与上端盖 24卡合， 此时与离合器齿盘 43连接的脱水轴套 52处于固 定状态，从而在洗涤工况时只有洗涤轴 51低速输出为普通洗涤输出； 当离 合器齿盘 43与电机转子 23断开连接且不固定， 这里的不固定是指离合器 齿盘 43不与任何处于固定状态的部件卡合， 即与离合器齿盘 43连接的脱 水轴套 52也处于不固定状态， 此时在洗涤轴 51低速输出的同时， 脱水轴 套 52也按一定的速比低速输出， 即可以实现复合动力输出。
当电磁离合装置断电后， 磁场消失， 在压簧 45的弹力作用下， 离合器 齿盘 43通过花键套 71的外花键轴向向下滑动，使得离合器齿盘 43与电机 转子 23卡合， 由于离合器齿盘 43与花键套 71之间不产生相对转动，所以 此时与花键套 71连接的脱水轴套 52以及套装在脱水轴套 52上的中间齿轮 331和电机转子 23锁死， 从而导致齿轮减速机构自锁， 电机转子 23和洗 涤轴 51同转速转动， 实现脱水功能。
这里需要说明的是， 离合装置也可以通过带动齿轮减速机构的其他传 动件与电机转子卡合或断开连接来实现洗涤工况和脱水工况的转换； 在洗 涤工况普通洗涤输出时， 离合装置的离合器齿盘也可以与电机的其他固定 件卡合； 离合装置的设置只要可以实现洗衣机洗涤工况和脱水工况的转换 即可。
由于在脱水工况时，脱水轴套 52要^受洗涤衣物的重量， 为了限制脱 水轴套 52的轴向移动， 可以在脱水轴套 52和中间齿轮 331之间设置平面 轴承、 平垫和弹性挡圏来限制脱水轴套 52在其轴线方向的移动。
为了使洗涤轴 51和脱水轴套 52在脱水工况时能够更稳定地转动， 在 脱水轴套 52和安装盘 11之间设置有第一轴承 831 , 在输出齿轮 332和下 端盖 25之间设置有第二轴承 832。
进一步， 在洗涤轴 51和脱水轴套 52之间设置有第一水封 61 , 在脱水 轴套 52和安装盘 11之间设置有第二水封 62, 用于防止洗衣机工作过程中 洗涤水进入驱动器内部。 具体个例对本发明的原理及实施方式进行了阐述， 以上实施例的说明只是 用于帮助理解本发明的方法及其核心思想。 应当指出， 对于本技术领域的 普通技术人员来说， 在不脱离本发明原理的前提下， 还可以对本发明进行 若干改进和修饰， 这些改进和修饰也落入本发明权利要求的保护范围内。

Claims

权 利 要 求
1、 一种洗衣机驱动器， 包括电机、 洗涤轴、 套装在所述洗涤轴上的脱 水轴套和齿轮减速机构， 其特征在于， 所述洗涤轴同轴安装于所述电机的 电机转子内部且与所述齿轮减速机构的输出齿轮固接， 所述齿轮减速机构 的输入齿轮轴插装于所述电机转子的轴孔内。
2、 如权利要求 1所述的洗衣机驱动器， 其特征在于， 所述齿轮减速机 构包括第一齿轮、 第二齿轮、 中间齿轮和输出齿轮； 所述第一齿轮和所述 第二齿轮固装在所述输入齿轮轴的两端， 所述第一齿轮与所述中间齿轮啮 合， 所述第二齿轮与所述输出齿轮啮合； 所述中间齿轮套装在所述脱水轴 套上， 所述输出齿轮与所述洗涤轴固接。
3、 如权利要求 1所述的洗衣机驱动器， 其特征在于， 所述齿轮减速机 构包括双联齿轮、 中间齿轮和输出齿轮； 所述双联齿轮套装在所述输入齿 轮轴上， 所述中间齿轮和所述输出齿轮分别与所述双联齿轮的第一级齿轮 和第二级齿轮啮合； 所述中间齿轮套装在所述脱水轴套上， 所述输出齿轮 与所述洗涤轴固接。
4、 如权利要求 2或 3所述的洗衣机驱动器， 其特征在于， 所述中间齿 轮为外齿轮或内齿圏。
5、 如权利要求 2或 3所述的洗衣机驱动器， 其特征在于， 所述输出齿 轮为外齿轮或内齿圏。
6、 如权利要求 1至 3任一项所述的洗衣机驱动器， 其特征在于， 所述 驱动器进一步包括离合装置， 所述离合装置设置于所述脱水轴套和所述电 机转子之间， 以便实现洗涤工况和脱水工况的转换。
7、 如权利要求 6所述的洗衣机驱动器， 其特征在于， 所述离合装置的 离合器齿盘与所述脱水轴套通过花键套连接， 所述离合器齿盘与所述花键 套啮合且轴向滑动连接。
8、 如权利要求 7所述的洗衣机驱动器， 其特征在于， 洗涤工况时， 所 述离合器齿盘与所述电机的上端盖卡合； 脱水工况时， 所述离合器齿盘与 所述电机转子卡合。
9、 如权利要求 7所述的洗衣机驱动器， 其特征在于， 洗涤工况时， 所 述离合器齿盘不固定；脱水工况时，所述离合器齿盘与所述电机转子啮合。
10、 如权利要求 6所述的洗衣机驱动器， 其特征在于， 所述离合装置 为电磁离合装置或机械离合装置。
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