WO2016019876A1 - 滚筒洗衣机 - Google Patents

滚筒洗衣机 Download PDF

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Publication number
WO2016019876A1
WO2016019876A1 PCT/CN2015/086174 CN2015086174W WO2016019876A1 WO 2016019876 A1 WO2016019876 A1 WO 2016019876A1 CN 2015086174 W CN2015086174 W CN 2015086174W WO 2016019876 A1 WO2016019876 A1 WO 2016019876A1
Authority
WO
WIPO (PCT)
Prior art keywords
pulley
drum
rotating shaft
clutch
drive
Prior art date
Application number
PCT/CN2015/086174
Other languages
English (en)
French (fr)
Inventor
中本重阳
Original Assignee
海尔亚洲株式会社
青岛海尔洗衣机有限公司
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 海尔亚洲株式会社, 青岛海尔洗衣机有限公司 filed Critical 海尔亚洲株式会社
Priority to EP15829894.3A priority Critical patent/EP3178984B1/en
Priority to US15/501,308 priority patent/US10145049B2/en
Priority to KR1020177005785A priority patent/KR101959872B1/ko
Priority to CN201580042123.4A priority patent/CN106574415B/zh
Publication of WO2016019876A1 publication Critical patent/WO2016019876A1/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
    • D06F23/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry 
    • D06F23/02—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry  and rotating or oscillating about a horizontal axis
    • 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
    • D06F23/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry 
    • D06F23/06—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry  and rotating or oscillating about an inclined axis
    • 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
    • D06F37/02—Rotary receptacles, e.g. drums
    • D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
    • 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
    • D06F37/02—Rotary receptacles, e.g. drums
    • D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
    • D06F37/06—Ribs, lifters, or rubbing means forming part of the receptacle
    • D06F37/065—Ribs, lifters, or rubbing means forming part of the receptacle ribs or lifters having means for circulating the washing liquid
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D11/00—Clutches in which the members have interengaging parts
    • F16D11/14—Clutches in which the members have interengaging parts with clutching members movable only axially
    • 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

Definitions

  • the present invention relates to a drum washing machine.
  • the drum washing machine can continuously perform the operation from washing to drying, or can perform washing without drying.
  • the drum washing machine rotates the washing machine by the baffle provided in the drum by rotating the drum of the horizontal axis type in the outer tank in which the water is stored in the bottom, and falls the laundry to the inner peripheral surface of the drum. To wash the laundry.
  • the drum washing machine is less likely to have a smaller mechanical force acting on the laundry than the fully automatic washing machine that rotates the pulsator in the washing and dewatering tank to wash the laundry, and the stain removing performance is liable to be lowered.
  • the drum washing machine in order to improve the washing performance, a structure in which a rotating body having a projecting portion on the surface is provided at the end of the drum, and the drum and the rotating body are different when washing and rinsing are performed The rotation speed is rotated.
  • the drum washing machine performs dehydration, the drum and the rotating body are rotated at the same rotation speed so that the laundry is appropriately dehydrated.
  • the drive unit for rotating the drum and the rotating body may be configured to include a drive motor for the drum and a drive motor for the rotary body, and the rotation of the drive motor for the drum is transmitted to the rotary shaft of the drum by the belt and the pulley.
  • the rotation of the drum is performed, and the rotation of the drive motor for the rotary body is transmitted to the rotation shaft of the rotary body by the belt and the pulley to rotate the rotary body (see Patent Document 1).
  • Patent Document 1 Japanese Patent Publication No. 03-280992
  • the reduction by the use of the belt and the pulley is used.
  • the simple structure formed by the speed mechanism can make the rotation speed of the drum and the rotating body different, and therefore, the reliability is high in terms of failure or the like as compared with the case of using a speed reduction mechanism composed of a gear.
  • it is necessary to use two drive motors for rotating the drum and the rotating body it is difficult to arrange the driving portion at low cost.
  • the present invention has been made in view of the above problems, and it is an object of the invention to provide a drum washing machine capable of rotating a drum and a rotating body by a driving portion which is inexpensive and highly reliable.
  • a drum washing machine includes: an outer tub that is disposed in a casing; and a drum that is disposed in the outer tub and that is rotatable about a horizontal axis or an inclined axis that is inclined with respect to a horizontal direction; Disposed at a rear portion of the drum, and having a protrusion having a surface in contact with the laundry; and a driving portion that rotates the drum and the rotating body.
  • the driving portion includes: a driving motor; a first rotating shaft fixed to the drum; a second rotating shaft fixed to the rotating body; and a first pulley fixed to the first rotating shaft, and Connected to the drive motor via a first drive belt; the second pulley is coupled to the drive motor via a second drive belt and different from an outer diameter of the first pulley; and the clutch mechanism portion is in a first drive configuration
  • the driving form of the driving unit is switched between the first driving form and the second driving form, wherein the first driving form is configured to be connected to the second rotating shaft so that the rotation of the second pulley can be transmitted.
  • the second rotating shaft and the second pulley rotate the drum and the rotating body at mutually different rotational speeds along with the rotation of the driving motor;
  • the second driving form refers to Disengaging the second rotating shaft and the second pulley in such a manner that rotation of the second pulley is not transmitted to the second rotating shaft, and the rotation of the driving motor causes the The drum rotates and causes said Swivel rotation in a state of freedom.
  • the roller and the rotating body have different rotational speeds due to the simple configuration configured by using the speed reducing mechanism composed of the belt and the pulley, compared with the case where the speed reducing mechanism constituted by the gear is used, In terms of failure, etc., the reliability of the drive unit can be improved. Further, since the drum and the rotating body can be rotated by one driving motor, the driving portion can be disposed at low cost.
  • the rotating body when the driving mode is switched to the drum single form during the dehydration, the rotating body is in a state of being freely rotated, and the driving motor is not rotated, so that the laundry attached to the inner circumferential surface of the drum does not.
  • the mixture is actively stirred by the rotating body, and the laundry can be dehydrated satisfactorily.
  • the second rotating shaft may be included in the first rotating shaft and configured to rotate coaxially with the first rotating shaft.
  • a structure may be employed in which the first pulley and the second pulley are configured to be at an axis of the first rotating shaft and the second rotating shaft Side by side in the direction.
  • the clutch mechanism portion includes a clutch portion that is disposed between the first pulley and the second pulley and that is movable in the axial direction with respect to the other rotation axis, and is capable of Rotating together with the other rotating shaft; and moving the mechanism to move the clutch portion in the axial direction.
  • An engagement portion is provided on a portion of the clutch portion on the second pulley side, and an engagement portion is provided on the second pulley.
  • the drum washing machine In the first drive mode, the drum washing machine is in a state in which the clutch portion is moved to the second pulley side by the moving mechanism portion, so that the engaging portion and the engaged portion are Engagement, the rotation of the second pulley is transmitted to the second rotating shaft via the clutch portion, and in the second driving form, the drum washing machine is in a state in which the clutch portion passes the movement
  • the mechanism portion moves to the first pulley side such that the engaging portion is disengaged from the engaged portion, and the rotation of the second pulley is not transmitted to the second rotating shaft.
  • the clutch portion disposed between the first pulley and the second pulley and the moving mechanism for moving the clutch portion
  • the clutch mechanism portion that can switch the drive portion of the drive portion between the first drive mode and the second drive mode can be realized.
  • the clutch mechanism portion includes an enclosing portion that surrounds the clutch portion such that the clutch portion is rotatable.
  • the moving mechanism portion is coupled to the surrounding portion.
  • the rotating clutch portion can be moved in the axial direction by using the moving mechanism portion that does not rotate.
  • a configuration may be adopted in which the driving portion is located in front of the first pulley on the front side of the first pulley and the second pulley, and has a rotation freely A bearing portion that supports the first rotating shaft.
  • a concave portion that accommodates at least a part of the bearing portion is formed on the bearing portion side of the first pulley.
  • the bearing portion and the first pulley overlap in the front-rear direction of the driving portion, the dimension of the driving portion in the front-rear direction can be reduced. Thereby, the outer tank and the drum can be enlarged in the front-rear direction, so that the washing capacity can be increased.
  • the second pulley may be configured to be rotatably supported by the second rotating shaft.
  • the second pulley rotates with the rotation of the drive motor even when it is not coupled to the second rotating shaft.
  • the fulcrum that rotatably supports the second pulley is used in combination The second axis of rotation.
  • Fig. 1 is a side cross-sectional view showing a configuration of a drum washing machine according to an embodiment.
  • Fig. 2 is a cross-sectional view showing a configuration of a driving unit according to an embodiment.
  • FIG 3 is a cross-sectional view showing the configuration of a drive unit according to an embodiment.
  • FIG. 4 is a view showing a configuration of a second pulley and a first pulley of the embodiment.
  • Fig. 5 is a view showing a configuration of a clutch guide and a clutch body according to an embodiment
  • Fig. 6 is a view showing a configuration of a clutch portion constituting a clutch body according to an embodiment
  • drum washing machine that does not have a drying function as one embodiment of the drum washing machine of the present invention will be described with reference to the drawings.
  • FIG. 1 is a side cross-sectional view showing the structure of a drum washing machine 1.
  • the drum washing machine 1 has a casing 10 that constitutes an appearance.
  • the front surface 10a of the casing 10 is inclined from the center portion to the upper portion, and the laundry inlet port 11 is formed on the inclined surface.
  • the inlet 11 is covered by a door 12 that is open and closed.
  • the outer groove 20 is elastically supported by the plurality of dampers 21 in the casing 10.
  • the drum 22 is rotatably disposed in the outer tub 20.
  • the outer groove 20 and the rear surface side of the drum 22 are inclined so as to be lowered in the horizontal direction. Thereby, the drum 22 rotates centering on the inclination axis inclined with respect to the horizontal direction.
  • the inclination angle of the outer tub 20 and the drum 22 can be about 10 to 20 degrees.
  • the opening 20a of the front surface of the outer tub 20 and the opening 22a of the front surface of the drum 22 face the input port 11, and pass through the door together with the input port 11. 12 closed.
  • a plurality of dewatering holes 22b are formed in the peripheral wall of the drum 22.
  • three lifting ribs 23 are provided at substantially equal intervals in the circumferential direction.
  • a rotating body 24 is rotatably disposed at a rear portion of the drum 22.
  • the rotating body 24 has a substantially disk shape.
  • a plurality of projecting portions 24a radially extending from the center portion are formed on the surface of the rotating body 24.
  • the rotating body 24 rotates coaxially with the drum 22.
  • a drive unit 30 that generates a torque that drives the drum 22 and the rotating body 24 is disposed behind the outer tank 20.
  • the drive unit 30 rotates the drum 22 and the rotation 24 at different rotational speeds in the same direction while performing the washing process and the rinsing process.
  • the driving unit 30 rotates the drum 22 at a rotational speed at which the centrifugal force applied to the laundry in the drum 22 is smaller than the gravity, and rotates the rotating body 24 at a rotational speed faster than the rotational speed of the drum 22.
  • the driving unit 30 rotates the drum 22 with the centrifugal force applied to the laundry in the drum 22 much faster than the gravity, and the rotating body 24 does not rotate but is free to rotate.
  • the detailed structure of the drive unit 30 will be described later.
  • a drain port portion 20b is formed at the bottom of the outer tub 20.
  • a drain valve 40 is provided in the drain port portion 20b. The drain valve 40 is connected to the drain pipe 41. When the drain valve 40 is opened, the water stored in the outer tank 20 is discharged to the outside through the drain pipe 41.
  • a detergent box 50 is disposed in the front upper portion of the casing 10.
  • the lotion container 50a containing the detergent in the detergent box 50 is housed so as to be freely extracted from the front.
  • the detergent box 50 is connected to the water supply valve 51 disposed at the rear upper portion in the casing 10 through the water supply pipe 52. Further, the detergent box 50 is connected to the upper portion of the outer tub 20 through a water injection pipe 53.
  • the water supply valve 51 When the water supply valve 51 is opened, tap water is supplied from the faucet to the outer tank 20 through the water supply pipe 52, the detergent box 50, and the water injection pipe 53. At this time, the detergent contained in the lotion container 50a is supplied into the outer tub 20 along the water flow.
  • FIG. 2 and 3 are cross-sectional views showing the configuration of the drive unit 30.
  • 2 shows a state in which the driving form of the driving unit 30 is switched to the two-axis driving mode
  • FIG. 3 shows a state in which the driving form of the driving unit 30 is switched to the drum single driving form.
  • FIG. 4 is a view showing a configuration of the second pulley 510 and the first pulley 610.
  • 4(a) is a view of the second pulley 510 as seen from the front
  • FIG. 4(b) is a view of the first pulley 610 as seen from the rear.
  • FIG. 5 is a view showing a configuration of the clutch guide 710 and the clutch body 720.
  • FIG. 5 (a) is a side cross-sectional view of the clutch guide 710 and the clutch body 720
  • Figure 5 (b) is a front view
  • FIG. 5(c) is a view of the clutch guide 710 as seen from the rear.
  • FIG. 6 is a view showing a configuration of a clutch portion 721 constituting the clutch body 720.
  • Fig. 6(a) is a side view of the clutch portion 721
  • Fig. 6(b) is a view of the clutch portion 721 as seen from the rear.
  • the drive unit 30 includes a drive motor 100, a first rotating shaft 200, a second rotating shaft 300, a bearing unit 400, a wing reduction mechanism 500, a drum reduction mechanism 600, and a clutch mechanism unit 700.
  • the drive motor 100 generates a torque for driving the drum 22 and the rotating body 24.
  • the drive motor 100 is, for example, an outer rotor type DC brushless motor, and a motor shaft 120 connected to the rotor in the casing 110 extends rearward from the casing 110.
  • the first rotating shaft 200 has a hollow shape. Inside the first rotating shaft 200, a first sliding bearing 211 and a second sliding bearing 212 are provided at the front and the rear, respectively, and a mechanical seal 213 is provided at the front end.
  • the second rotating shaft 300 is enclosed in the first rotating shaft 200.
  • the front portion of the second rotating shaft 300 protrudes forward from the first rotating shaft 200, and the rear portion of the second rotating shaft 300 protrudes rearward from the first rotating shaft 200.
  • the outer circumferential surface of the second rotating shaft 300 is received by the first sliding bearing 211 and the second sliding bearing 212, and smoothly rotates in the first rotating shaft 200. Further, water is prevented from intruding between the second rotating shaft 300 and the first rotating shaft 200 by the mechanical seal 213.
  • a substantially cylindrical bearing portion 410 is provided at a central portion of the bearing unit 400.
  • a first rolling bearing 411 and a second rolling bearing 412 are provided at the front portion and the rear portion, respectively, and a mechanical seal 413 is provided at the front end portion.
  • the outer circumferential surface of the first rotating shaft 200 is received by the first rolling bearing 411 and the second rolling bearing 412, and smoothly rotates in the bearing portion 410. Further, water is prevented from intruding between the first rotating shaft 200 and the bearing portion 410 by the mechanical seal 413.
  • a fixing flange portion 420 is formed around the bearing portion 410.
  • the bearing unit 400 is fixed to the rear surface of the outer tub 20 by a fixing method such as screw fastening at the fixing flange portion 420.
  • a fixing method such as screw fastening at the fixing flange portion 420.
  • the second rotating shaft 300 and the first rotating shaft 200 enter the inside of the outer tub 20.
  • the drum 22 is fixed to the first rotating shaft 200 by a screw (not shown), and the rotating body 24 is fixed to the second rotating shaft 300 by a screw 310.
  • the wing reduction mechanism 500 includes a second pulley 510, a second motor pulley 520, and a second transmission belt 530.
  • the rotation of the drive motor 100 is decelerated in accordance with the reduction ratio determined by the outer diameter ratio of the second pulley 510 and the second motor pulley 520, and is transmitted to the second rotary shaft 300.
  • the second pulley 510 is rotatably supported by the rear end portion of the second rotating shaft 300.
  • the central portion is formed with an insertion hole 511 into which the second rotating shaft 300 is inserted, and two front and rear rolling bearings 512 and 513 are interposed between the insertion hole 511 and the second rotating shaft 300.
  • the second pulley 510 smoothly rotates with respect to the second rotating shaft 300 through the two rolling bearings 512, 513.
  • an annular engaged concave portion 514 is formed on the front surface of the second pulley 510.
  • a rack 515 is formed over the entire circumference of the outer circumferential surface of the engaged recess 514.
  • the rack 515 corresponds to the engaged portion of the present invention.
  • the second pulley 510 is prevented from falling rearward by the fixing screw 320 attached to the rear end portion of the second rotating shaft 300.
  • the second motor pulley 520 is mounted to the front end portion of the motor shaft 120 of the drive motor 100.
  • the second drive belt 530 is disposed between the second pulley 510 and the second motor pulley 520.
  • the drum reduction mechanism 600 includes a first pulley 610, a first motor pulley 620, and a first transmission belt 630.
  • the rotation of the drive motor 100 is decelerated in accordance with the deceleration determined by the outer diameter ratio of the first pulley 610 and the first motor pulley 620, and is transmitted to the first rotary shaft 200.
  • the first pulley 610 is formed in a dish shape in which the front surface is opened, and includes a pulley portion 611 and a fixing portion 612 that is smaller than the outer diameter of the pulley portion 611. Since the outer diameter of the pulley portion 611, that is, the outer diameter of the first pulley 610 is larger than the outer diameter of the second pulley 510, the reduction ratio produced by the drum reduction mechanism 600 is larger than the reduction ratio generated by the blade reduction mechanism 500.
  • An insertion hole 613 is formed in a central portion of the fixing portion 612.
  • the rear end portion of the first rotating shaft 200 is fixed to the insertion hole 613 by a predetermined fixing method such as press-fitting by a rack by inserting the insertion hole 613.
  • the first pulley 610 is fixed to the rear end portion of the first rotating shaft 200.
  • the rear end portion of the bearing portion 410 is housed inside the pulley portion 611 which is a recess 614 recessed rearward. Thereby, the bearing unit 400 and the first pulley 610 are overlapped in the front-rear direction of the drive unit 30.
  • the first motor pulley 620 is mounted at the root of the motor shaft 120 of the drive motor 100.
  • the first drive belt 630 is disposed between the first pulley 610 and the first motor pulley 620.
  • the clutch mechanism unit 700 switches the driving form controlled by the driving unit 30 between the two-axis driving mode and the drum unit driving mode, wherein the two-axis driving mode means that the rotation of the second pulley 510 can be transmitted to the second
  • the second rotating shaft 300 and the second pulley 510 are coupled to each other in such a manner that the drum 22 and the rotating body 24 are rotated at mutually different rotational speeds with the rotation of the driving motor 100;
  • the connection between the second rotating shaft 300 and the second pulley 510 is released by the rotation of the second pulley 510 not being transmitted to the second rotating shaft 300, and the drum 22 is rotated while the rotation of the driving motor 100 is being rotated.
  • the rotating body 24 is in a state of being free to rotate.
  • Two-axis drive mode In the first driving mode of the present invention, the drum unit driving form corresponds to the second driving mode of the present invention.
  • the clutch mechanism portion 700 includes a clutch guide 710, a clutch body 720, a clutch lever 750, a lever support portion 740, and a clutch drive device 750.
  • the clutch guide 710 and the clutch body 720 are disposed in the axial direction of the first rotating shaft 200 and the second rotating shaft 500 and are disposed between the first pulley 610 and the second pulley 510.
  • the clutch guide 710 has a cylindrical shape in which the front surface is opened.
  • a rack 711 is formed over the entire circumference of the entire outer circumferential surface of the clutch guide 710.
  • An insertion hole 712 is formed in a central portion of the clutch guide 710.
  • the insertion hole 712 is formed with a wedge groove 713.
  • the insertion hole 712 of the clutch guide 710 leads to the second rotating shaft 500, and is fixed to the second rotating shaft 500 by a fixing method using a wedge groove 713 and a wedge shape not shown. Thereby, the clutch guide 710 rotates together with the second rotating shaft 500.
  • the clutch body 720 includes a clutch portion 721, an enclosing portion 722, and a rolling bearing 725.
  • the clutch portion 721 has a cylindrical shape in which the front surface and the rear surface are opened.
  • a rear rack 724 is formed over the entire circumference of the rear portion of the outer circumferential surface of the clutch portion 721.
  • the rear rack 724 corresponds to the engaging portion of the present invention.
  • the inner diameter of the clutch portion 721 is substantially equal to the outer diameter of the clutch guide 710, and the front and rear dimensions of the clutch portion 721 are larger than the front and rear dimensions of the clutch guide 710.
  • a clutch guide 710 is inserted inside the clutch portion 721.
  • An inner rack 725 is formed on the inner circumferential surface of the clutch portion 721 over the entire circumference, and the inner rack 725 is meshed with the rack 711 of the clutch guide 710.
  • the front and rear dimensions of the inner rack 725 are larger than the front and rear dimensions of the rack 711.
  • the clutch portion 721 When the internal rack 725 and the rack 711 are engaged, the clutch portion 721 is in a state in which it can move in the axial direction of the second rotating shaft 500 with respect to the clutch guide 710, that is, the second rotating shaft 500 to which the clutch guide 710 is fixed and It is rotatable together with the second rotating shaft 500.
  • the surrounding portion 722 is formed in an annular shape, and surrounds the central portion of the clutch portion 721 such that the clutch portion 721 is rotatable.
  • a rolling bearing 725 is provided between the clutch portion 721 and the surrounding portion 722.
  • the rolling bearing 725 is fixed by means of two locating wheels 726, 727 of a size to prevent back and forth movement.
  • the clutch portion 721 smoothly rotates with respect to the surrounding portion 722 by the rolling bearing 725.
  • the upper end portion of the clutch lever 750 is coupled to the surrounding portion 722 so as to be rotatable relative to the surrounding portion 722. Further, the clutch lever 750 is rotatably supported by a support shaft 741 provided on the lever support portion 740.
  • the clutch drive 750 includes an actuator 751 and an operating lever 752. Actuator 751 makes the operating lever 752 moves back and forth.
  • the operating lever 752 is coupled to the lower end portion of the clutch lever 730.
  • the lower end portion of the clutch lever 730 is rotatable relative to the operating lever 752.
  • the lever support portion 740 and the clutch drive device 750 are fixed to a mounting plate (not shown) that is attached to the bearing unit 400 or the outer tub 20.
  • clutch lever 730 the lever support portion 740, and the clutch driving device 750 constitute the moving mechanism portion of the present invention.
  • the operating lever 752 When the driving form of the driving unit 30 is switched from the drum unit driving mode to the two-axis driving mode, as shown in FIG. 2, the operating lever 752 is pushed forward from the inside of the actuator 751. The lower end portion of the clutch lever 730 is pressed by the operating lever 752 to move forward, and the clutch lever 730 is rotated rearward about the spindle 741. The upper end portion of the clutch lever 730 moves rearward, and the clutch body 720 is pressed by the upper end portion of the clutch lever 730 to move rearward. Thereby, the rear rack 724 of the clutch portion 721 and the rack 515 of the second pulley 510 are engaged.
  • the rotation of the second pulley 510 can be made via the clutch portion 721 and the clutch guide 710.
  • the state of being transmitted to the second rotating shaft 300 In such a state, when the drive motor 100 rotates, the rotation is transmitted to the second rotating shaft 300 via the wing reduction mechanism 500, and the rotating body 24 fixed to the second rotating shaft 300 rotates.
  • the rotating body 24 rotates at a rotational speed that is reduced by the reduction ratio generated by the wing reduction mechanism 500 at the rotational speed of the drive motor 100.
  • the rotation of the drive motor 100 is transmitted to the first rotating shaft 200 via the drum reduction mechanism 600, and the drum 22 fixed to the first rotating shaft 200 is rotated.
  • the drum 22 is rotated at a rotation speed at which the rotation speed of the drive motor 100 is reduced in accordance with the reduction ratio generated by the drum reduction mechanism 600.
  • the rotary body 24 rotates in the same direction as the drum 22 at a rotation speed faster than the drum 22.
  • the clutch portion 721 rotates together with the second pulley 510.
  • the clutch lever 730 is coupled to the surrounding portion 722 that connects the clutch portion 721 in a state in which the clutch portion 721 is rotatably coupled, the rotation of the clutch portion 721 is hardly transmitted to the clutch portion 721. Clutch lever 730.
  • the operating lever 752 is retracted inside the actuator 751. That is, the operating lever 752 moves rearward.
  • the lower end portion of the clutch lever 730 is moved rearward by the operating lever 752, and the clutch lever 730 is rotated forward about the spindle 741.
  • the upper end portion of the clutch lever 730 moves forward, away from The clutch body 720 is pressed by the upper end portion of the clutch lever 730 to move forward. Thereby, the rear rack 724 of the clutch portion 721 is disengaged from the rack 515 of the second pulley 510.
  • the rotation of the second pulley 510 cannot be transmitted to the second rotating shaft 300.
  • the drive motor 100 rotates
  • the rotation is transmitted to the first rotary shaft 200 via the drum reduction mechanism 600, and the drum 22 rotates.
  • the drum 22 integrally rotates in the same direction at a rotational speed at which the rotational speed of the drive motor 100 is reduced in accordance with the reduction ratio generated by the drum reduction mechanism 600. Since the second pulley 510 is only idling with respect to the second rotating shaft 300 even if the driving motor 100 rotates, the rotation of the second pulley 510 is not transmitted to the second rotating shaft 300, and thus the rotating body 24 does not rotate. Since the second rotating shaft 300 is rotatable relative to the first rotating shaft 200, the rotating body 24 is in a state of being freely rotatable.
  • the drum washing machine 1 performs a washing operation in various operation modes.
  • the washing operation includes a washing process, an intermediate dehydration process, a rinsing process, and a final dehydration process.
  • the driving form of the driving unit 30 is switched to the two-axis driving mode.
  • the drive motor 100 alternately performs right rotation and left rotation.
  • the drum 22 and the rotating body 24 alternately perform the right rotation and the left rotation in a state where the rotation speed of the rotating body 24 is faster than the rotation speed of the drum 22.
  • the rotational speed of the drum 22 is set to a rotational speed at which the centrifugal force acting on the laundry in the drum 22 is smaller than the gravity.
  • the laundry in the drum 22 is dropped by the lifting ribs 23 and falls on the inner circumferential surface of the drum 22.
  • the laundry comes into contact with the projecting portion 24a of the rotating rotating body 24, the laundry is swung by the projecting portion 24a, or the laundry is stirred by the projecting portion 24a. Thereby, the laundry is washed or rinsed.
  • the drive form of the drive unit 30 is switched to the drum unit drive mode.
  • the drive motor 100 rotates in one-way high speed, and the drum 22 rotates so that the centrifugal force acting on the laundry in the drum 22 is much larger than the rotational speed of gravity.
  • the rotating body 24 is not rotated by the drive motor 100, and is in a state in which the rotation is free.
  • the rotating body 24 does not rotate by the driving motor 100 at the time of dehydration, it is attached to The laundry on the drum 22 is not actively stirred by the rotating body 24, and the laundry can be dehydrated satisfactorily.
  • the drum 22 and the rotating body 24 have a difference in rotational speed by a simple configuration configured by using a speed reducing mechanism composed of a belt and a pulley, the case of using a speed reducing mechanism composed of gears is The reliability of the drive unit 30 can be improved in terms of failure or the like. Further, since the drum 22 and the rotating body 24 can be rotated by one driving motor 100, the driving unit 30 can be disposed at low cost.
  • the rotating body 24 when the driving mode is switched to the drum single form during the dehydration, the rotating body 24 is in a state of being freely rotatable and cannot be rotated by the driving motor 100, so that the washing is applied to the inner circumferential surface of the drum 22.
  • the object is not actively stirred by the rotating body 24, and the laundry can be dehydrated satisfactorily.
  • the clutch mechanism portion 700 has a configuration in which the rotation of the first pulley 610 can be transmitted to the second rotating shaft 500.
  • an engagement structure such as a rack is required between the clutch portion 721 and the first pulley 610.
  • the clutch portion 721 and the first pulley 610 do not have an engagement structure such as a rack, the clutch portion 721 and the first pulley 610 can be configured.
  • the clutch portion 721 that is, the front-rear direction dimension of the clutch body 720 can be reduced accordingly, so that the front-back direction dimension of the drive unit 30 can be reduced.
  • the outer tank 20 and the drum 22 can be enlarged in the front-rear direction, and the washing capacity can be increased.
  • the clutch body 720 disposed between the first pulley 610 and the second pulley 510 is used.
  • the clutch lever 750 and the clutch driving device 750 that the clutch body 720 moves can realize the clutch mechanism unit 700 that can switch the driving form of the driving unit 30 well between the two-axis driving mode and the drum single driving mode.
  • the rotating mechanism can be used without using the rotating mechanism portion.
  • the portion 721 moves in the axial direction of the second rotating shaft 500.
  • the bearing unit 400 and the first pulley 610 are overlapped in the front-rear direction of the drive unit 30, the dimension of the drive unit 30 in the front-rear direction can be reduced.
  • the outer groove 20 and the drum 22 are enlarged in the rear direction, so that the washing capacity can be increased.
  • the support shaft that rotatably supports the second pulley 510 required to rotate the second pulley 510 in the drum single drive mode also serves as the second rotary shaft 300.
  • the drive form of the drive unit 30 is switched to the drum unit drive mode.
  • the driving mode is switched to the drum unit driving mode when the drum 22 is rotated during the washing process or the rinsing process.
  • the rotating body 24 In the case where the rotating body 24 is not rotatable relative to the drum 22, when the laundry is pressed by the rotating rib 23 after being pressed by the rotating body 24 on the rear side of the drum 22, the laundry becomes close to the drum 22. It is attached to the rotating body 24 to be rotated while being directly above without falling. As described above, since the laundry is rotated substantially only once during the one rotation of the drum 22 on the rear side of the drum 22, the front side and the rear side of the drum 22 cause a difference in the rotation of the laundry, and the laundry is easily entangled.
  • the clutch portion 721 and the second pulley 510 are fixed in the rotational direction by the engagement of the rear rack 724 of the clutch portion 721 and the rack 515 of the second pulley 510.
  • the configuration in which the rear portion of the clutch portion 721 is engaged with the second pulley 510 is not limited to the above embodiment, and may be another configuration.
  • a structure may be employed in which a protrusion is formed at the rear portion of the clutch portion 721, and a recess or hole is formed in the second pulley 510, and the protrusion is fitted into the recess or the hole.
  • two rolling bearings 512, 513 are provided between the second pulley 510 and the second rotating shaft 300. Further, a rolling bearing 723 is provided between the clutch portion 721 and the surrounding portion 722. However, these rolling bearings 512, 513, 723 can also be replaced with sliding bearings.
  • the drum 22 is rotated about the tilt axis that is inclined with respect to the horizontal direction.
  • the drum washing machine 1 may be configured to rotate the drum 22 around the horizontal axis.
  • drum washing machine 1 of the above embodiment does not have a drying function, but the present invention is also applicable to a drum washing and drying machine which is a drum washing machine having a drying function.
  • 10 housing; 20: outer groove; 22: roller; 24: rotating body; 24a: protruding portion; 30: driving portion; 100: driving motor; 200: first rotating shaft; 300: second rotating shaft; : bearing unit; 410: bearing portion; 500: wing reduction mechanism; 510: second pulley; 515: rack (engaged portion); 530: second belt; 600: drum reduction mechanism; 610: first belt Wheel; 614: recess; 630: first transmission belt; 700: clutch mechanism portion; 720: clutch body; 721: clutch portion; 722: enclosure; 724: rear rack (engagement portion); 730: clutch lever (moving Mechanism unit); 740: rod support portion (moving mechanism portion); 750: clutch drive device (moving mechanism portion).

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Abstract

一种滚筒洗衣机（1），其能够通过廉价且可靠度高的驱动部（30）使滚筒（22）以及旋转体（24）旋转。驱动部(30)包括：驱动电机(100)；固定在滚筒(22)的第一旋转轴(200)；固定在旋转体(24)的第二旋转轴(300)；固定在第一旋转轴(200)，并经由第一传动带(630)与驱动电机(100)连结的第一带轮(610)；经由第二传动带(530)与驱动电机(100)连结的与第一带轮(610)的外径不同的第二带轮(510)；以及在二轴驱动形态和滚筒单体驱动形态之间切换驱动部(30)的驱动形态的离合器机构部(700)，其中，二轴驱动形态是指，通过连结第二旋转轴(300)和第二带轮(510)，使滚筒(22)和旋转体(24)以相互不同的旋转速度旋转，滚筒单体驱动形态是指，通过解除第二旋转轴(300)和第二带轮(510)的连结，使滚筒(22)旋转，并且，使旋转体(24)成为旋转自由的状态。

Description

滚筒洗衣机 技术领域
本发明涉及一种滚筒洗衣机。该滚筒洗衣机既可以连续地进行从洗涤到烘干的运转，也可以进行洗涤但不进行烘干。
背景技术
以往，滚筒洗衣机通过使横轴型的滚筒在底部蓄有水的外槽内旋转，由设置在滚筒内的提升筋(baffle)将洗涤物举起落下，将洗涤物摔到滚筒的内周面来洗涤洗涤物。
这样，在通过提升筋搅拌洗涤物的结构中，洗涤物彼此之间很难互相缠绕或互相摩擦。因此，滚筒洗衣机与在洗涤脱水槽内使搅拌器(pulsator)旋转来洗涤洗涤物的全自动洗衣机相比，作用于洗涤物的机械力易变小，去污性能易降低。
因此，对于滚筒洗衣机而言，为了提高清洗性能，可以采用下述的结构：在滚筒的端部设置表面具有突状部的旋转体，并在进行洗涤、漂洗时，使滚筒和旋转体以不同的旋转速度旋转。该滚筒洗衣机在进行脱水时，滚筒和旋转体以使洗涤物被恰当脱水的方式，以相同的旋转速度进行旋转。
使滚筒和旋转体旋转的驱动部例如可以采用下述结构：具备滚筒用的驱动电机和旋转体用的驱动电机，由传动带和带轮将滚筒用的驱动电机的旋转传递至滚筒的旋转轴而使滚筒旋转，并且，由传动带和带轮将旋转体用的驱动电机的旋转传递至旋转体的旋转轴而使旋转体旋转(参照专利文献1)。
现有技术文献
专利文献
专利文献1：日本特开平03-280992号公报
发明内容
发明所要解决的问题
在驱动部采用上述结构的情况下，由于通过使用由传动带和带轮构成的减 速机构而形成的简单结构，就能使滚筒和旋转体的旋转速度具有差别，因此与使用由齿轮构成的减速机构的情况相比，在故障等方面可靠性高。然而，由于使滚筒和旋转体旋转需要使用两个驱动电机，因此难以廉价地配置驱动部。
本发明是鉴于上述问题而完成的技术方案，目的在于提供一种能通过廉价且可靠度高的驱动部，使滚筒以及旋转体旋转的滚筒洗衣机。
用于解决问题的方案
本发明的主要方式的滚筒洗衣机具备：外槽，配置在壳体内；滚筒，配置在所述外槽内，并能够以水平轴或相对于水平方向倾斜的倾斜轴为中心进行旋转；旋转体，配置在所述滚筒的后部，并且表面具有与洗涤物接触的突状部；以及驱动部，使所述滚筒以及所述旋转体旋转。在此，所述驱动部包括：驱动电机；第一旋转轴，固定在所述滚筒；第二旋转轴，固定在所述旋转体；第一带轮，固定在所述第一旋转轴，并经由第一传动带与所述驱动电机连结；第二带轮，经由第二传动带与所述驱动电机连结，且与所述第一带轮的外径不同；以及离合器机构部，在第一驱动形态和第二驱动形态之间切换所述驱动部的驱动形态，其中，所述第一驱动形态是指，通过以能够使所述第二带轮的旋转传递至所述第二旋转轴的方式连结所述第二旋转轴和所述第二带轮，伴随着所述驱动电机的旋转，使所述滚筒和所述旋转体以相互不同的旋转速度旋转；所述第二驱动形态是指，通过以使所述第二带轮的旋转不传递至所述第二旋转轴的方式解除所述第二旋转轴和所述第二带轮的连结，伴随着所述驱动电机的旋转，使所述滚筒旋转，并且使所述旋转体成为旋转自由的状态。
根据上述结构，由于通过使用由传动带和带轮构成的减速机构而配置的简单的结构，能够使滚筒和旋转体在旋转速度上具有差异，与使用由齿轮构成的减速机构的情况相比，在故障等方面，能够提高驱动部的可靠性。并且，由于能够通过一个驱动电机使滚筒和旋转体旋转，因此能够廉价地配置驱动部。
进而，根据上述结构，由于在脱水时，当驱动形态切换至滚筒单体形态时，旋转体成为旋转自由的状态，不会被驱动电机旋转，因此贴在滚筒的内圆周面的洗涤物不会被旋转体积极地搅拌，能够良好地将洗涤物脱水。
在本方式的滚筒洗衣机中，可以采用所述第二旋转轴内包在所述第一旋转轴中，与所述第一旋转轴同轴旋转的结构。此外，可以采用以下结构：所述第一带轮以及所述第二带轮配置成在所述第一旋转轴以及所述第二旋转轴的轴线 方向上并排。在这种情况下，所述离合器机构部包括：离合器部，配置在所述第一带轮和所述第二带轮之间，能够相对于另一方旋转轴往所述轴线方向移动，并且能够与所述另一方旋转轴一起旋转；以及移动机构部，使所述离合器部往所述轴线方向移动。在所述离合器部的所述第二带轮侧的部位设有卡合部，并且，在所述第二带轮设有被卡合部。在所述第一驱动形态中，所述滚筒洗衣机呈以下状态：所述离合器部通过所述移动机构部移动至所述第二带轮侧，从而所述卡合部与所述被卡合部卡合，所述第二带轮的旋转经由所述离合器部传递至所述第二旋转轴，在所述第二驱动形态中，所述滚筒洗衣机呈以下状态：所述离合器部通过所述移动机构部移动至所述第一带轮侧，从而所述卡合部脱离所述被卡合部，所述第二带轮的旋转不传递至所述第二旋转轴。
根据上述结构，在驱动部采用使用由传动带和带轮构成的减速机构的结构的情况下，通过配置在第一带轮和第二带轮之间的离合器部、使该离合器部移动的移动机构部，能够实现能够在第一驱动形态和第二驱动形态之间良好地切换驱动部的驱动形态的离合器机构部。
在采用上述结构的情况下，进一步地，可以采用以下结构：所述离合器机构部包括以使所述离合器部旋转自由的方式包围所述离合器部的包围部。在这种情况下，所述移动机构部与所述包围部连结。
根据这样的结构，由于设置不旋转的包围部，并使移动机构部与包围部与连结，因此能够使用不旋转的移动机构部，使旋转的离合器部往轴线方向移动。
在采用上述结构的情况下，进一步地，可以采用如下结构：所述驱动部在所述第一带轮以及所述第二带轮中位于前侧的第一带轮的前方，具备旋转自由地支承所述第一旋转轴的轴承部。在这种情况下，在所述第一带轮的所述轴承部一侧，形成有收容所述轴承部的至少一部分的凹部。
根据这样的结构，由于在驱动部的前后方向，轴承部和第一带轮重叠，因此能够缩小驱动部的前后方向尺寸。由此，能够在前后方向上扩大外槽以及滚筒，因此能够增加洗涤容量。
在本方式的滚筒洗衣机中，可以采用所述第二带轮由所述第二旋转轴旋转自由地支承的结构。
第二带轮即使在未与第二旋转轴连结时，也伴随着驱动电机的旋转而旋转。根据上述结构，为了实现该旋转，作为旋转自由地支承第二带轮的支轴，兼用 第二旋转轴。由此，由于不需要另外设置支轴，因此能够减少成本，并且，不需要进行与设置了支轴的情况下所需的第二旋转轴之间的轴对齐，驱动部的组装操作变得容易。
发明效果
根据本发明，能够提供一种滚筒洗衣机，其能够通过廉价且可靠度高的驱动部使滚筒以及旋转体旋转。
本发明的效果及意义通过如下所示的实施方式的说明进一步明确。但是，以下额实施方式只是实施本发明时的一个例子，本发明不受以下的实施方式所述的任何限制。
附图说明
图1是表示实施方式的滚筒洗衣机的结构的侧面剖视图。
图2是表示实施方式的驱动部的结构的剖视图。
图3是表示实施方式的驱动部的结构的剖视图。
图4是表示实施方式的第二带轮以及第一带轮的结构的图。
图5是表示实施方式的离合器导向器以及离合器体的结构的图。
图6是表示实施方式的构成离合器体的离合器部的结构的图。
具体实施方式
以下，关于作为本发明的滚筒洗衣机的一个实施方式的不具有烘干功能的滚筒洗衣机，参照附图进行说明。
图1是表示滚筒洗衣机1的结构的侧面剖视图。
滚筒洗衣机1具有构成外观的壳体10。壳体10的前表面10a从中央部倾斜到上部，在倾斜的面形成洗涤物的投入口11。投入口11通过开闭自由的门12遮盖。
外槽20在壳体10内由多个减振器21弹性地支承。在外槽20内以旋转自由的方式配置滚筒22。外槽20以及滚筒22以后表面侧相对于水平方向放低的方式倾斜。由此，滚筒22以相对于水平方向倾斜的倾斜轴为中心旋转。外槽20以及滚筒22的倾斜角度可做成为10～20度左右。外槽20的前表面的开口部20a以及滚筒22的前表面的开口部22a与投入口11对置，与投入口11一起通过门 12关闭。在滚筒22的周壁上形成有多个脱水孔22b。进一步地，在滚筒22的内周面，在圆周方向上以大致相等的间隔设置有三个提升筋23。
在滚筒22的后部以旋转自由的方式配置有旋转体24。旋转体24具有大致圆盘的形状。在旋转体24的表面形成有从中央部呈放射状延伸的多个突状部24a。旋转体24与滚筒22同轴旋转。
在外槽20的后方，配置有产生驱动滚筒22以及旋转体24的力矩的驱动部30。驱动部30在进行洗涤过程以及漂洗过程时，使滚筒22以及旋转24往同一方向以不同的旋转速度旋转。
具体地说，驱动部30使滚筒22以施加给滚筒22内的洗涤物的离心力比重力小的旋转速度旋转，并使旋转体24以比滚筒22的旋转速度快的旋转速度旋转。
另一方面，驱动部30在进行脱水过程时使滚筒22以施加给滚筒22内的洗涤物的离心力远远大于重力的旋转速度旋转，另一方面旋转体24成为不旋转但旋转自由的状态。驱动单元30的详细结构之后进行说明。
在外槽20的底部形成有排水口部20b。在排水口部20b设置有排水阀40。排水阀40与排水管41连接。当打开排水阀40时存于外槽20内的水就会通过排水管41向机外排出。
在壳体10内的前方上部配置有洗涤剂盒50。在洗涤剂盒50中收容洗涤剂的洗剂容器50a以从前方抽出自由的方式收容。洗涤剂盒50通过给水管52与配置在壳体10内的后方上部的给水阀51连接。此外，洗涤剂盒50通过注水管53与外槽20的上部连接。当打开给水阀51时，自来水从水龙头通过给水管52、洗涤剂盒50以及注水管53提供给外槽20内。此时，收容在洗剂容器50a里的洗涤剂顺着水流提供给外槽20内。
接下来，就驱动部30的结构进行详细说明。
图2以及图3是表示驱动部30的结构的剖视图。图2表示驱动部30的驱动形态切换成二轴驱动形态的状态，图3表示驱动部30的驱动形态切换成滚筒单体驱动形态的状态。图4是表示第二带轮510以及第一带轮610的结构的图。图4(a)是从前方观察第二带轮510的图，图4(b)是从后方观察第一带轮610的图。图5是表示离合器导向器710以及离合器体720的结构的图。图5(a)是离合器导向器710以及离合器体720的侧面剖视图，图5(b)是从前方观察 离合器导向器710的图，图5(c)是从后方观察离合器导向器710的图。图6是表示构成离合器体720的离合器部721的结构的图。图6(a)是离合器部721的侧视图，图6(b)是从后方观察离合器部721的图。
驱动部30包括：驱动电机100、第一旋转轴200、第二旋转轴300、轴承单元400、翼减速机构500、滚筒减速机构600以及离合器机构部700。
驱动电机100产生用于驱动滚筒22以及旋转体24的力矩。驱动电机100为例如外转子型DC无刷电机，在壳体110内与转子连接的电机轴120从壳体110向后方延伸。
第一旋转轴200具有中空形状。在第一旋转轴200的内部，在前部以及后部分别设有第一滑动轴承211以及第二滑动轴承212，在前端部设有机械密封件213。
第二旋转轴300内包在第一旋转轴200中。第二旋转轴300的前部从第一旋转轴200向前方突出，第二旋转轴300的后部从第一旋转轴200向后方突出。第二旋转轴300的外圆周面由第一滑动轴承211以及第二滑动轴承212承接，在第一旋转轴200内顺利地进行旋转。此外，通过机械密封件213防止水侵入第二旋转轴300和第一旋转轴200之间。
在轴承单元400的中央部设有大致圆筒状的轴承部410。在轴承部410的内部，在前部以及后部分别设有第一滚动轴承411以及第二滚动轴承412，在前端部设有机械密封件413。第一旋转轴200的外圆周面由第一滚动轴承411以及第二滚动轴承412承接，在轴承部410内顺利地进行旋转。此外，通过机械密封件413防止水侵入第一旋转轴200和轴承部410之间。进而，在轴承单元400，在轴承部410的周围形成有固定凸缘部420。
轴承单元400在固定凸缘部420处通过螺钉紧固等固定方法固定在外槽20的后表面。在轴承单元400已安装于外槽20中的状态下，第二旋转轴300以及第一旋转轴200进入外槽20的内部。滚筒22通过未图示的螺钉固定在第一旋转轴200，旋转体24通过螺钉310固定在第二旋转轴300。
翼减速机构500包括第二带轮510、第二电机带轮520以及第二传动带530。驱动电机100的旋转按照由第二带轮510和第二电机带轮520的外径比决定的减速比而被减速，并传递至第二旋转轴300。
第二带轮510由第二旋转轴300的后端部旋转自由地支承。在第二带轮510 的中央部形成有第二旋转轴300所插入的插入孔511，在该插入孔511和第二旋转轴300之间夹有前后两个滚动轴承512、513。第二带轮510通过两个滚动轴承512、513，相对于第二旋转轴300顺利地进行旋转。
如图4(a)所示，在第二带轮510的前表面形成有环状的被卡合凹部514。在被卡合凹部514的外圆周面遍及整周地形成有齿条515。齿条515相当于本发明的被卡合部。通过安装在第二旋转轴300的后端部的固定螺钉320，防止第二带轮510向后方脱落。
第二电机带轮520安装在驱动电机100的电机轴120的前端部に安装。第二传动带530架设在第二带轮510和第二电机带轮520之间。
滚筒减速机构600包括第一带轮610、第一电机带轮620以及第一传动带630。驱动电机100的旋转按照由第一带轮610和第一电机带轮620的外径比决定的减速被减速，并传递至第一旋转轴200。
第一带轮610形成为前表面打开的碟状，包括带轮部611和比带轮部611的外径小的固定部612。由于带轮部611的外径即第一带轮610的外径比第二带轮510的外径大，因此由滚筒减速机构600产生的减速比比由翼减速机构500产生的减速比大。
在固定部612的中央部形成有插入孔613。第一旋转轴200的后端部通过插入插入孔613，使用齿条进行的压入等规定的固定方法而固定在插入孔613中。由此，第一带轮610固定在第一旋转轴200的后端部。
在向后方凹陷的凹部614即带轮部611的内部，收容有轴承部410的后端部。由此，在驱动部30的前后方向，轴承单元400和第一带轮610重叠。
第一电机带轮620安装在驱动电机100的电机轴120的根部。第一传动带630架设在第一带轮610和第一电机带轮620之间。
离合器机构部700在二轴驱动形态和滚筒单体驱动形态之间切换由驱动部30控制的驱动形态，其中，二轴驱动形态是指，通过以可将第二带轮510的旋转传递至第二旋转轴300的方式连结第二旋转轴300和第二带轮510，从而伴随着驱动电机100的旋转，使滚筒22和旋转体24以相互不同的旋转速度旋转；滚筒单体驱动形态是指，通过以第二带轮510的旋转不被传递至第二旋转轴300的方式解除第二旋转轴300和第二带轮510的连结，伴随着驱动电机100的旋转，使滚筒22旋转的同时使旋转体24成为旋转自由的状态。二轴驱动形态相 当于本发明的第一驱动形态，滚筒单体驱动形态相当于本发明的第二驱动形态。
离合器机构部700包括：离合器导向器710、离合器体720、离合器杆750、杆支承部740以及离合器驱动装置750。
离合器导向器710以及离合器体720配置在第一旋转轴200以及第二旋转轴500的轴线方向上并且配置在第一带轮610和第二带轮510之间。
如图5所示，离合器导向器710具有前表面打开的圆筒形状。在离合器导向器710的外圆周面的整面，遍及整周地形成有齿条711。在离合器导向器710的中央部形成有插入孔712。插入孔712形成有楔形槽713。离合器导向器710的插入孔712通到第二旋转轴500，通过使用楔形槽713和未图示的楔形进行的固定方法固定在第二旋转轴500。由此，离合器导向器710与第二旋转轴500一起旋转。
如图5(a)所示，离合器体720包括离合器部721、包围部722以及滚动轴承725。离合器部721具有前表面以及后表面打开的圆筒形状。如图6所示，在离合器部721的外圆周面的后部，遍及整周地形成有后齿条724。后齿条724相当于本发明的卡合部。
离合器部721的内径与离合器导向器710的外径大致相等，离合器部721的前后尺寸比离合器导向器710的前后尺寸大。在离合器部721的内部插入有离合器导向器710。在离合器部721的内圆周面，遍及整周地形成有内齿条725，该内齿条725与离合器导向器710的齿条711啮合。内齿条725的前后尺寸比齿条711的前后尺寸大。
通过内齿条725和齿条711卡合，离合器部721成为以下状态：能够相对于离合器导向器710即固定有离合器导向器710的第二旋转轴500往第二旋转轴500的轴线方向移动并且能够与第二旋转轴500一起旋转。
包围部722形成为圆环状，并以使离合器部721旋转自由的方式，包围离合器部721的中央部。在离合器部721和包围部722之间设有滚动轴承725。滚动轴承725通过大小两个定位轮726、727，以禁止前后移动的方式固定。通过滚动轴承725，离合器部721相对于包围部722顺利地进行旋转。
离合器杆750的上端部以可相对于包围部722进行旋转的方式连结在包围部722。此外，离合器杆750由设置在杆支承部740的支轴741转动自由地支承。
离合器驱动装置750包括促动器751和操作杆752。促动器751使操作杆 752前后移动。操作杆752连结在离合器杆730的下端部。离合器杆730的下端部能够相对于操作杆752进行旋转。
杆支承部740以及离合器驱动装置750固定在未图示的安装板，该安装板安装在轴承单元400或外槽20。
需要说明的是，离合器杆730、杆支承部740以及离合器驱动装置750构成本发明的移动机构部。
在驱动部30的驱动形态从滚筒单体驱动形态切换至二轴驱动形态的情况下，如图2所示，操作杆752从促动器751的内部向前方推出。离合器杆730的下端部被操作杆752推压而向前方移动，离合器杆730以支轴741为中心向后方旋转。离合器杆730的上端部向后方移动，离合器体720被离合器杆730的上端部推压而向后方移动。由此，离合器部721的后齿条724和第二带轮510的齿条515卡合。
由于当后齿条724和齿条515卡合时，离合器部721和第二带轮510在旋转方向上被固定，因此成为能够将第二带轮510的旋转经由离合器部721以及离合器导向器710传递至第二旋转轴300的状态。在这样的状态下，当驱动电机100旋转时，该旋转经由翼减速机构500传递至第二旋转轴300，固定在第二旋转轴300的旋转体24进行旋转。旋转体24以驱动电机100的旋转速度按照由翼减速机构500产生的减速比而降低后的旋转速度进行旋转。此外，驱动电机100的旋转经由滚筒减速机构600传递至第一旋转轴200，固定在第一旋转轴200的滚筒22进行旋转。滚筒22以驱动电机100的旋转速度按照由滚筒减速机构600产生的减速比进行降低后的旋转速度进行旋转。如上所述，由于由滚筒减速机构600产生的减速比比由翼减速机构500产生的减速比大，因此旋转体24以比滚筒22快的旋转速度，与滚筒22同向旋转。
在此，离合器部721与第二带轮510一起旋转，但由于离合器杆730与以旋转自由的状态连结离合器部721的包围部722连结，因此即使离合器部721旋转，该旋转也几乎不传递至离合器杆730。
另一方面，在驱动部30的驱动形态从二轴驱动形态切换至滚筒单体驱动形态的情况下，如图3所示，操作杆752缩进促动器751的内部。即，操作杆752向后方移动。离合器杆730的下端部被操作杆752带动而向后方移动，离合器杆730以支轴741为中心向前方旋转。离合器杆730的上端部向前方移动，离 合器体720被离合器杆730的上端部推压而向前方移动。由此，离合器部721的后齿条724脱离第二带轮510的齿条515。
当后齿条724脱离齿条515时，成为无法将第二带轮510的旋转传递至第二旋转轴300的状态。在这样的状态下，当驱动电机100旋转时，该旋转经由滚筒减速机构600传递至第一旋转轴200，滚筒22旋转。滚筒22以驱动电机100的旋转速度按照由滚筒减速机构600产生的减速比而降低后的旋转速度，向相同的方向一体旋转。由于即使驱动电机100旋转，第二带轮510也只是相对于第二旋转轴300空转，第二带轮510的旋转不会传递至第二旋转轴300，因此旋转体24不旋转。由于第二旋转轴300能够相对于第一旋转轴200旋转，因此旋转体24成为能够自由旋转的状态。
滚筒洗衣机1进行各种运转模式的洗涤运转。洗涤运转包括洗涤过程、中间脱水过程、漂洗过程以及最终脱水过程。
在洗涤过程以及漂洗过程中，驱动部30的驱动形态切换成二轴驱动形态。在外槽20内蓄水至未到达投入口11的下缘的规定水位的状态下，驱动电机100交替进行右旋转以及左旋转。由此，滚筒22和旋转体24以旋转体24的旋转速度比滚筒22的旋转速度快的状态，交替进行右旋转以及左旋转。此时，滚筒22的旋转速度设定为使作用在滚筒22内的洗涤物上的离心力比重力小的旋转速度。
当滚筒22以及旋转体24旋转时，滚筒22内的洗涤物通过由提升筋23卷起落下，摔在滚筒22的内圆周面上。除此之外，在滚筒22的后部，洗涤物与旋转的旋转体24的突状部24a接触，洗涤物被突状部24a揉搓，或者洗涤物由突状部24a搅拌。由此，洗涤物被洗涤或漂洗。
这样，在洗涤以及漂洗时，由于对洗涤物不仅赋予由滚筒22的旋转产生的机械力，还赋予由旋转体24产生的机械力，因此能期待实现清洗性能的提高。接下来，在中间脱水过程以及最终脱水过程中，驱动部30的驱动形态切换至滚筒单体驱动形态。驱动电机100单向高速旋转，滚筒22以使作用在滚筒22内的洗涤物上的离心力远大于重力的旋转速度进行旋转。通过离心力的作用，洗涤物被按压在滚筒22的内圆周面进行脱水。此时，旋转体24不通过驱动电机100进行旋转，成为旋转自由的状态。
这样，由于在脱水时，旋转体24不通过驱动电机100进行旋转，因此贴在 滚筒22上的洗涤物不会被旋转体24积极地搅拌，能够良好地将洗涤物脱水。
<实施方式的效果>
根据本实施方式，由于通过使用由传动带和带轮构成的减速机构而配置成的简单结构，使滚筒22和旋转体24在旋转速度上具有差别，因此与使用由齿轮构成的减速机构的情况相比，在故障等方面，能够提高驱动部30的可靠性。并且，由于能够通过一个驱动电机100使滚筒22和旋转体24旋转，因此能够廉价地配置驱动部30。
进而，通过上述实施方式，由于在脱水时，当驱动形态切换至滚筒单体形态时，旋转体24成为旋转自由的状态，不能被驱动电机100旋转，因此贴在滚筒22的内圆周面的洗涤物不会被旋转体24积极地搅拌，能够良好地将洗涤物脱水。
进而，由于在脱水时等使滚筒22和旋转体24以相同的速度一体旋转，因此在离合器机构部700采用如下结构，即以能将第一带轮610的旋转传递至第二旋转轴500的方式，将第二旋转轴500连结到第一带轮610的结构的情况下，离合器部721和第一带轮610之间需要齿条等卡合构造。在上述实施方式中，由于离合器部721和第一带轮610之间不具有齿条等卡合构造，因此能够离合器部721和第一带轮610的结构。此外，由于前侧不具有卡合构造，能够相应地缩小离合器部721即离合器体720的前后方向尺寸，因此能够缩小驱动部30的前后方向尺寸。由此，能够将外槽20以及滚筒22前后方向放大，能够增加洗涤容量。
进而，根据本实施方式，在驱动部30采用使用由传动带和带轮构成的减速机构的结构的情况下，通过配置在第一带轮610和第二带轮510之间的离合器体720、使离合器体720移动的离合器杆750以及离合器驱动装置750，能够实现离合器机构部700，其能够在二轴驱动形态和滚筒单体驱动形态之间良好地切换驱动部30的驱动形态。
进而，根据本实施方式，由于设置了以旋转自由的状态包围离合器部721的包围部722，并将离合器杆750与该包围部722连结，因此能够使用不旋转的移动机构部，使旋转的离合器部721往第二旋转轴500的轴线方向移动。
进而，根据本实施方式，由于在驱动部30的前后方向，轴承单元400和第一带轮610重叠，因此能够缩小驱动部30的前后方向尺寸。由此，由于能够前 后方向放大外槽20以及滚筒22，因此能够增加洗涤容量。
进而，根据本实施方式，在滚筒单体驱动形态中使第二带轮510旋转所需的作为旋转自由地支承第二带轮510的支轴兼用作第二旋转轴300。由此，无需另外设置支轴，因此能够减少成本，并且，不需要进行在设置了支轴的情况下所需的与第二旋转轴300之间的轴对齐，驱动部30的组装操作变得容易。
以上，就本发明的实施方式进行了说明，但本发明不受上述实施方式等的任何限制，此外，本发明的实施方式也可以进行上述之外的各种变更。
例如，在上述实施方式中，在中间脱水过程以及最终脱水过程中，驱动部30的驱动形态切换至滚筒单体驱动形态。然而，也可以采用在洗涤过程、漂洗过程中使滚筒22旋转时，驱动形态切换至滚筒单体驱动形态的结构。例如，特别优选在洗涤精致的衣物、带烘干标识的衣物的洗涤模式中进行往滚筒单体驱动形态的切换。
在外槽20内蓄有水的状态下，当驱动电机100以滚筒单体驱动形态进行旋转时，滚筒22旋转，洗涤物被提升筋23搅拌。
此时，由于在滚筒22的前侧被提升筋23抬起至滚筒22正上方附近再落下，因此洗涤物在滚筒22一次旋转期间大致进行两次旋转。另一方面，在滚筒22的后侧，洗涤物容易成为被旋转体24按压的状态。如上述那样，由于旋转体24处于能够自由旋转的状态，因此洗涤物被提升筋23搅拌旋转时，旋转体24也容易与洗涤物一同旋转。由此，在滚筒22的后侧也与前侧相同，洗涤物在滚筒22一次旋转期间大致进行两次旋转。因此，在滚筒22的前侧和后侧难以产生洗涤物的旋转差，难以产生因旋转差而导致的洗涤物额缠绕。
需要说明的是，在旋转体24无法相对于滚筒22自由旋转的情况下，当洗涤物在滚筒22的后侧被旋转体24推压后被提升筋23搅拌时，洗涤物成为接近滚筒22的正上方而不落下，贴在旋转体24上进行旋转的状态。如此，由于在滚筒22的后侧，洗涤物在滚筒22一次旋转期间大致只进行一次旋转，因此滚筒22的前侧和后侧产生洗涤物的旋转差，洗涤物容易缠绕。
此外，在滚筒单体驱动形态中，像二轴驱动形态那样，由于旋转体24不通过驱动电机100旋转，因此洗涤物也不会被旋转体24揉搓。
这样，在洗涤过程或漂洗过程中，在以滚筒单体驱动形态使驱动电机100工作的情况下，难以产生洗涤物缠绕所导致的损伤、揉搓导致的损伤。因此， 根据本变更例，能够在抑制精致的衣物产生损伤的同时进行洗涤或漂洗。
此外，在上述实施方式中，通过离合器部721的后齿条724和第二带轮510的齿条515的卡合，在旋转方向上固定了离合器部721和第二带轮510。然而，使离合器部721的后部与第二带轮510卡合的结构不限于上述实施方式，也可以是其他的结构。例如，可以采用如下结构：在离合器部721的后部形成有突起，并且，在第二带轮510形成有凹陷或孔，突起嵌入凹陷或孔中。
此外，在上述实施方式中，在第二带轮510和第二旋转轴300之间设有两个滚动轴承512、513。此外，在离合器部721和包围部722之间设有滚动轴承723。然而，这些滚动轴承512、513、723也可以置换成滑动轴承。
进而，在上述实施方式中，滚筒22以相对于水平方向倾斜的倾斜轴为中心进行旋转。然而，滚筒洗衣机1也可以采用滚筒22以水平轴为中心进行旋转的结构。
进而，上述实施方式的滚筒洗衣机1不具备烘干功能，但本发明也能够适用于具备烘干功能的滚筒洗衣机即滚筒洗衣烘干机。
此外，本发明的实施方式可以在权利要求范围所揭示的技术思想的范围内适当地进行各种变更。
附图标记说明
10：壳体；20：外槽；22：滚筒；24：旋转体；24a：突状部；30：驱动部；100：驱动电机；200：第一旋转轴；300：第二旋转轴；400：轴承单元；410：轴承部；500：翼减速机构；510：第二带轮；515：齿条(被卡合部)；530：第二传动带；600：滚筒减速机构；610：第一带轮；614：凹部；630：第一传动带；700：离合器机构部；720：离合器体；721：离合器部；722：包围部；724：后齿条(卡合部)；730：离合器杆(移动机构部)；740：杆支承部(移动机构部)；750：离合器驱动装置(移动机构部)。

Claims (5)

  1. 一种滚筒洗衣机，其特征在于，具备：
    外槽，配置在壳体内；
    滚筒，配置在所述外槽内，并能够以水平轴或相对于水平方向倾斜的倾斜轴为中心进行旋转；
    旋转体，配置在所述滚筒的后部，并且表面具有与洗涤物接触的突状部；以及
    驱动部，使所述滚筒以及所述旋转体旋转，
    所述驱动部包括：
    驱动电机；
    第一旋转轴，固定在所述滚筒；
    第二旋转轴，固定在所述旋转体；
    第一带轮，固定在所述第一旋转轴，并经由第一传动带与所述驱动电机连结；
    第二带轮，经由第二传动带与所述驱动电机连结，且与所述第一带轮的外径不同；以及
    离合器机构部，在第一驱动形态和第二驱动形态之间切换所述驱动部的驱动形态，其中，所述第一驱动形态是指，通过以能够使所述第二带轮的旋转传递至所述第二旋转轴的方式连结所述第二旋转轴和所述第二带轮，伴随着所述驱动电机的旋转，使所述滚筒和所述旋转体以相互不同的旋转速度旋转；所述第二驱动形态是指，通过以使所述第二带轮的旋转不传递至所述第二旋转轴的方式解除所述第二旋转轴和所述第二带轮的连结，伴随着所述驱动电机的旋转，使所述滚筒旋转，并且使所述旋转体成为旋转自由的状态。
  2. 根据权利要求1所述的滚筒洗衣机，其特征在于，
    所述第二旋转轴内包在所述第一旋转轴中，与所述第一旋转轴同轴旋转，
    所述第一带轮以及所述第二带轮配置成在所述第一旋转轴以及所述第二旋转轴的轴线方向上并排，
    所述离合器机构部包括：
    离合器部，配置在所述第一带轮和所述第二带轮之间，能够相对于另一方 旋转轴往所述轴线方向移动，并且能够与所述另一方旋转轴一起旋转；以及
    移动机构部，使所述离合器部往所述轴线方向移动，
    在所述离合器部的所述第二带轮侧的部位设有卡合部，并且，在所述第二带轮设有被卡合部，
    在所述第一驱动形态中，所述滚筒洗衣机呈以下状态：所述离合器部通过所述移动机构部移动至所述第二带轮侧，从而所述卡合部与所述被卡合部卡合，所述第二带轮的旋转经由所述离合器部传递至所述第二旋转轴，
    在所述第二驱动形态中，所述滚筒洗衣机呈以下状态：所述离合器部通过所述移动机构部移动至所述第一带轮侧，从而所述卡合部脱离所述被卡合部，所述第二带轮的旋转不传递至所述第二旋转轴。
  3. 根据权利要求2所述的滚筒洗衣机，其特征在于，
    所述离合器机构部包括以使所述离合器部旋转自由的方式包围所述离合器部的包围部，
    所述移动机构部与所述包围部连结。
  4. 根据权利要求2或3所述的滚筒洗衣机，其特征在于，
    所述驱动部，
    在所述第一带轮以及所述第二带轮中位于前侧的第一带轮的前方，具备旋转自由地支承所述第一旋转轴的轴承部，
    在所述第一带轮的所述轴承部一侧，形成有收容所述轴承部的至少一部分的凹部。
  5. 根据权利要求1至4中的任一项所述的滚筒洗衣机，其特征在于，
    所述第二带轮由所述第二旋转轴旋转自由地支承。
PCT/CN2015/086174 2014-08-05 2015-08-05 滚筒洗衣机 WO2016019876A1 (zh)

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