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WO2018236159A1 - Appareil de traitement de linge - Google Patents

Appareil de traitement de linge Download PDF

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Publication number
WO2018236159A1
WO2018236159A1 PCT/KR2018/007002 KR2018007002W WO2018236159A1 WO 2018236159 A1 WO2018236159 A1 WO 2018236159A1 KR 2018007002 W KR2018007002 W KR 2018007002W WO 2018236159 A1 WO2018236159 A1 WO 2018236159A1
Authority
WO
WIPO (PCT)
Prior art keywords
shaft
impeller
pulsator
coupling
gear
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/KR2018/007002
Other languages
English (en)
Korean (ko)
Inventor
김동철
김영종
유인식
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
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 LG Electronics Inc filed Critical LG Electronics Inc
Publication of WO2018236159A1 publication Critical patent/WO2018236159A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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 
    • D06F37/40—Driving arrangements  for driving the receptacle and an agitator or impeller, e.g. alternatively
    • 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
    • D06F17/00—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid
    • D06F17/06—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid by rotary impellers
    • D06F17/08—Driving arrangements for the impeller
    • 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
    • D06F37/12—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a vertical 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
    • D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • D06F37/24—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations in machines with a receptacle rotating or oscillating about a vertical axis
    • 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
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • 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
    • H02K7/08—Structural association with bearings

Definitions

  • the present invention relates to a laundry processing apparatus, and more particularly, to a laundry processing apparatus in which an impeller is provided below a pulsator and the pulsator and the impeller are rotated by a motor.
  • a laundry processing apparatus separates contaminants from clothes, bedding, etc. (hereinafter, abbreviated as “laundry”) by using physical action such as chemical decomposition of water and detergent and friction between water and laundry Device.
  • Such laundry processing apparatuses are classified into a top loading system in which washing water is contained in an outer bath and an inner bath for accommodating laundry is rotated around a vertical axis and a front loading system in which the laundry is rotated around a horizontal axis do.
  • a top loading type laundry processing apparatus is provided with a pulsator in the inner tank. By impinging on the laundry by the rotation of the pulsator, contamination of the laundry is more positively removed.
  • a circulation pump for feeding water discharged from the outer tank and a circulation channel for discharging the water fed by the circulation pump into the inner tank are provided outside the outer tank.
  • This structure has the advantage of promoting the dissolution of the detergent by circulating water along the circulating flow path and improving the washing performance by evenly washing the detergent in the laundry, but the manufacturing cost is increased due to the circulation pump .
  • Conventional Technique 1 Korean Patent Laid-Open Publication No. 2013-0049094 discloses a washing machine comprising a pulsator rotatably installed in a drum, and a centrifugal blade portion provided below the pulsator to form an ejection pressure by a centrifugal force,
  • the pulsator and the centrifugal blade portion are rotated at the same speed, so that the rotational speed of the centrifugal blade portion must be increased for sufficient water flow.
  • the load applied to the pulsator There is a limit to increase the rotation speed.
  • a first shaft for rotating the centrifugal bulldade is a hollow shaft
  • a second shaft for rotating the pulsator is inserted in the first shaft, It may be considered to rotate the shaft and the second shaft at different speeds. In this case, it is necessary to arrange the bearing supporting the rotation of the second shaft at a proper position so that the total outer diameter of the double shaft is not increased.
  • the impeller rotation shaft is slimmed by disposing a bearing for supporting the pulsator rotation shaft outside the impeller rotation shaft.
  • the laundry treatment apparatus of the present invention comprises: an outer tank containing laundry water; an inner tank which accommodates the laundry and is rotatably provided in the outer tank; a pulsator rotatably provided in the inner tank; An impeller rotatably disposed on the lower side of the pulsator in the inner tank, an impeller connecting shaft connected to the impeller and having a first hollow through which the pulsator connecting shaft passes, And a planetary gear train for transmitting the rotation of the drive shaft and rotating the pulsator connection shaft and the impeller connection shaft at different speeds.
  • the planetary gear train comprises a ring gear, a first sun gear disposed inside the ring gear and rotated by the drive shaft, a plurality of pinion gears rotated by the first sun gear and revolving along the ring gear, A second sun gear disposed on the upper side of the first sun gear and rotated by the plurality of pinion gears, a second sun gear coupled to the pulsator connecting shaft, rotatably supporting the plurality of pinion gears, And a carrier which is rotated as the gear is idled to rotate the pulsator connecting shaft.
  • the laundry processing apparatus is characterized in that the lower end portion is coupled to the center of the second sun gear, the upper end portion is coupled to the impeller coupling shaft, and when the second sun gear is rotated by the plurality of pinion gears, And an impeller connecting shaft coupler for rotating the impeller connecting shaft.
  • the impeller coupling shaft coupler may include a coupler body having a second hollow through which the pulsator connecting shaft passes, and an outer circumferential surface of the pulsator connecting shaft, the inner circumferential surface of the coupler body defining the second hollow, And a bearing for supporting the data connection shaft.
  • the lower end of the impeller coupling shaft is inserted into the coupler main body in a region spaced from the outer circumferential surface of the pulsator connecting shaft corresponding to the thickness of the bearing, which is provided on the upper portion of the bearing receiving portion.
  • the laundry processing apparatus of the present invention is characterized in that, in the structure in which the pulsator connection shaft is inserted into the hollow shaft coupling impeller, the bearing supporting the pulsator coupling shaft is disposed outside the impeller coupling shaft, The distance between the outer circumferential surfaces of the pulsator connecting shafts can be reduced and the outer diameter of the impeller connecting shaft can be prevented from being increased more than necessary.
  • the present invention provides a coupler for connecting a sun gear of a planetary gear train to the impeller coupling shaft and a bearing for supporting the pulsator coupling shaft in the coupler, wherein the bearing is located lower than the impeller coupling shaft,
  • the pulsator connection shaft can be supported by the bearing without disposing the bearing between the pulsator connection shaft and the pulsator connection shaft.
  • FIG. 1 is a side cross-sectional view of a laundry processing apparatus according to an embodiment of the present invention.
  • FIG. 2 is a perspective view showing major parts of the laundry treatment apparatus shown in FIG. 1.
  • FIG. 2 is a perspective view showing major parts of the laundry treatment apparatus shown in FIG. 1.
  • Figure 3 is an exploded perspective view of the assembly shown in Figure 2;
  • FIG. 4 is an enlarged view of a portion of a cross-sectional view along II-II in Fig.
  • FIG. 6 is a block diagram showing the control relationship between the main parts of the laundry processing apparatus according to the embodiment of the present invention.
  • Fig. 7 is an enlarged view of a part of Fig.
  • FIG. 8 is an enlarged view of a portion indicated by a dotted line in FIG.
  • FIG. 9A is an enlarged view of portion A of FIG. 8, and FIG. 9B is an enlarged view of portion B of FIG.
  • FIG. 10 is a perspective view showing the epicyclic gear trains shown in FIG. 7.
  • FIG. 10 is a perspective view showing the epicyclic gear trains shown in FIG. 7.
  • 11 to 13 are respectively a side view, a plan view and a bottom view of the assembly shown in Fig.
  • FIG. 14 is a perspective view showing the carrier.
  • 16 schematically shows the operation of the planetary gear train when the internal gear connection shaft and pulsator rotate at the same speed.
  • Figure 17 shows another embodiment of pulsator.
  • FIG. 1 is a side cross-sectional view of a laundry processing apparatus according to an embodiment of the present invention.
  • FIG. 2 is a perspective view showing major parts of the laundry treatment apparatus shown in FIG. 1.
  • FIG. Figure 3 is an exploded perspective view of the assembly shown in Figure 2; 4 is an enlarged view of a portion of a cross-sectional view along II-II in Fig. 5 shows a state in which the pulsator is separated from the base.
  • FIG. 6 is a block diagram showing the control relationship between the main parts of the laundry processing apparatus according to the embodiment of the present invention.
  • Fig. 7 is an enlarged view of a part of Fig.
  • FIG. 8 is an enlarged view of a portion indicated by a dotted line in FIG. FIG.
  • FIG. 9A is an enlarged view of portion A of FIG. 8, and FIG. 9B is an enlarged view of portion B of FIG.
  • FIG. 10 is a perspective view showing the epicyclic gear trains shown in FIG. 7.
  • FIG. 11 to 13 are respectively a side view, a plan view and a bottom view of the assembly shown in Fig. 14 is a perspective view showing the carrier.
  • the laundry processing apparatus includes a casing 1, 2, 3 forming an outer appearance and a space for accommodating the outer tank 40 inside .
  • the casings 1, 2 and 3 may include a casing base 2, a cabinet 1, and a top cover 3.
  • the casing base 2 has a substantially rectangular horizontal shape.
  • the cabinet 1 has a front surface, a left surface, a right surface and a rear surface, and the upper surface and the lower surface are supported by the casing base 2 in an open box form.
  • the top cover 3 is coupled to an open upper surface of the cabinet 1, and a charging port through which laundry is charged is formed at a substantially central portion.
  • a door (not shown) for opening and closing the inlet may be rotatably coupled to the top cover 3.
  • the control panel 4 may be provided on the top cover 3.
  • the control panel 4 includes an input unit (for example, a button, a dial, a touch pad, etc.) for receiving various control commands for controlling the operation of the laundry processing apparatus from the user, a display unit for visually displaying the operating state of the laundry processing apparatus (E. G., LCD, LED display, etc.).
  • an input unit for example, a button, a dial, a touch pad, etc.
  • a display unit for visually displaying the operating state of the laundry processing apparatus (E. G., LCD, LED display, etc.).
  • the outer tub 40 is for containing wash water and can be suspended within the casings 1, 2 and 3 by means of suspensions 5.
  • the upper end of the suspension 5 is pivotally coupled to the top cover 3 and the lower end of the suspension 5 is coupled to the outer tub 40.
  • a spring for resiliently supporting the outer tank 40 may be provided at the lower end of the suspension 5.
  • the suspensions 5 may be provided at four corners of the cabinet 1, respectively.
  • the laundry treatment apparatus may include at least one water supply pipe (8) for guiding water supplied from an external water source such as a faucet.
  • the at least one water supply pipe 8 may include a cold water supply pipe supplied with cold water from an external water source and a hot water supply pipe supplied with hot water.
  • the water supplied through each of the water supply pipes flows into the water supply valve assembly 7.
  • the water supply valve assembly 7 may include at least one water supply valve.
  • Each of the water supply valves is connected to the detergent supply mechanism (9). When the at least one water supply valve is opened under the control of the control unit 36, water is supplied to the detergent supply mechanism 9 through the opened water supply valve.
  • the detergent supply mechanism 9 is provided with a divided space containing additive such as laundry detergent, fabric softener and bleach, and the additive is discharged together with the water supplied to the space through the at least one water supply pipe 8 do.
  • the water in which the discharged additive is dissolved is supplied into the outer tank 40 and / or the inner tank 50.
  • control unit 36 controls not only the water supply valve but also various electrical components constituting the laundry processing apparatus, and may include a CPU for such control and a memory for storing various data for control.
  • control unit 36 controls the respective components (for example, the driving unit 6, the clutch 37, etc.) provided in the laundry processing apparatus unless otherwise specified
  • a drainage bellows 21 for draining water from the outer tank 40 and a drain valve 10 for interrupting the drainage bellows 21 can be provided.
  • the drainage bellows 21 is connected to the pump 29 and water can be supplied to the pump 29 through the drainage bellows 21 when the drainage valve 10 is opened. The water thus introduced into the pump 29 is discharged to the outside of the laundry processing apparatus through the drainage hose 11 when the pump 29 is operated.
  • the outer tank 40 may include a bottom tread 41 forming the bottom and a cylindrical outer tank side portion 42 extending upward from the bottom tread 41.
  • the outer tub 40 may be formed by injecting synthetic resin.
  • the outer tub bottom 41 and the outer tub side 42 are integrally formed.
  • Through-holes through which the connection shafts 340, 350 and 121 (see Figs. 7 to 8) described later pass are formed at the substantially center of the outer tread bottom 41.
  • the outer cover (28) may be provided on the open upper surface of the outer tank (40).
  • the outer cover 28 may be formed in the form of a ring having a central opening for the entry and exit of laundry.
  • an inner tub 50 which receives the laundry and is rotated about a vertical axis, may be disposed.
  • the inner tub 50 may include a ring-shaped inner tub base 51 having a central opening and a cylindrical drum 52 having a lower end coupled to the inner tub base 51.
  • a plurality of through holes may be formed in the drum 52, and water may be exchanged between the inner tub 50 and the outer tub 40 through the through holes.
  • the material of the inner tank 50 is preferably a metal, and preferably stainless steel, but is not limited thereto.
  • a balancer 22 for correcting the eccentricity caused when the inner tank 50 rotates may be provided at the upper end of the drum 52.
  • the balancer 22 is filled with a fluid or a mass in a ring-shaped space. When the inner tank 50 is biased to one side, the fluid or mass is moved to the opposite side to correct eccentricity (or unbalance).
  • a hub 31 is coupled to the bottom surface of the inner tub base 51.
  • the inner tub base 51 is concave downward from the upper end where the upper surface is engaged with the drum 52, and the impeller 70 is disposed in the concave space.
  • the pulsator 26 is disposed above the impeller 70.
  • the hub 31 is disposed between the inner tub base 51 and the outer tub bottom 41 and has a substantially circular shape and an axial passage hole 31a through which the inner tubular connecting shaft 121 described later passes.
  • a plurality of through holes 31h may be formed in the hub 31 along the circumference of the shaft passage 31a so that water may flow between the outer tub 40 and the inner tub 50.
  • the impeller 70 can be rotated by the impeller connecting shaft 350 (see Figs. 7 to 8).
  • the impeller 70 includes a substantially circular swash plate 71 formed at the center thereof with an impeller hub 72 coupled to the impeller coupling shaft 350, And at least one blade 73 that press-feeds the washing water radially (or radially outward) when the rotating plate 71 is rotated.
  • the pulsator 26 includes a substantially circular washing plate 26a formed with a pulsator hub 26b coupled to a pulsator connecting shaft 340 at a central portion thereof, And a plurality of water flow forming ribs 26c radially disposed about the pulsator hub 26b.
  • the washing plate 26a may be disposed in the concave portion of the inner tub base 51 and is preferably formed larger than the impeller 70 so that the impeller 70 is completely obscured when viewed from above.
  • a plurality of through holes 26h (see FIG. 2) communicating upper and lower spaces of the washing plate 26a can be formed on the washing plate 26a.
  • the driving unit 6 is to provide a driving force for rotating the pulsator 26, the impeller 70 and / or the inner tank 50.
  • the driving unit 6 can be coupled with the outer tub 40 by the bearing housing 25.
  • the driving unit 6 may include a motor for rotating the driving shaft 310 (see Figs. 7 to 8). Since the motor is capable of speed control, a brushless direct current motor (BLDC motor) is suitable, but not necessarily limited thereto.
  • BLDC motor brushless direct current motor
  • the motor is an outer rotor type and may include a stator 6a wound with an induction coil, a permanent magnet 6b attached to an inner circumferential surface thereof, and a rotor 6c coupled to the rotation axis of the motor.
  • the power train 100 transmits the rotational force of the driving unit 6 to rotate the pulsator connecting shaft 340, the impeller connecting shaft 350, and / or the inner tubular connecting shaft 121).
  • the pulsator connecting shaft 340 and the impeller connecting shaft 350 are rotated together by the power transmitting apparatus 100 but the rotational speeds may be different from each other.
  • the power transmitting apparatus 100 is provided with the driving shaft 310, And a planetary gear train 200 for outputting the rotational speed input through the output shaft 310 at a rotation speed different from that of the drive shaft 310.
  • the power transmission apparatus 100 will be described later in more detail.
  • the clutch 37 interrupts the power transmitted from the drive unit 6 to the inner tubular connection shaft 121. Since this clutch 37 is widely used in the technical field of the laundry processing apparatus, detailed description thereof will be omitted. (For example, Korean Patent Publication No. 10-2006-0032747, Korean Patent Publication No. 10-2008-0092023, etc.)
  • the clutch 37 can be selectively operated in a pumping mode or an anti-rotation mode.
  • the pulsator connecting shaft 340 and the impeller connecting shaft 350 are connected to each other by the planetary gear train 200 when the clutch 37 is in the pumping mode and the inner connecting shaft 121 is stopped (or unrotated) Is rotated at a predetermined speed ratio (W3: W1, W1> W3). (See Fig. 15).
  • both of the pulsator connecting shaft 340, the impeller connecting shaft 350, and the inner tubular connecting shaft 121 are rotated at the same speed W1 at the time of the clutch 37 in the internal rotation mode. (See Fig. 16).
  • a circulation injection mechanism 60 for guiding the centrifugal water flow formed by the rotation of the impeller 70 upward and discharging it into the inner tank 50 may be provided.
  • the circulation injection mechanism 60 is provided with a connecting duct 61 between the connecting duct 61 formed with the inlet port 61h through which the water flow formed by the rotation of the impeller 70 is formed and the inner peripheral surface of the drum 52, And a guide duct 62 forming a rising guide passage 62a communicating with the guide duct 62a. The water flow is guided along the space 62c between the rising guide passage 62a and the inner peripheral surface of the drum 52.
  • the guide duct 62 may include a discharge portion 62b having a discharge port 62h for discharging the water supplied through the rising guide passage 62a into the inner tank 50.
  • the discharge portion 62b may be provided with a filter (not shown) for collecting foreign matter such as a lint floating in the water stream.
  • the inner tub base 51 may include a ring-shaped lower rim portion 51c defining an area in which the impeller 70 is disposed and an upper rim portion 51b defining an area in which the pulsator 26 is disposed.
  • the lower end of the upper rim portion 51b is connected to the upper end of the lower rim portion 51c by the ring-shaped surface 51d and is disposed outside the lower rim portion 51c by a distance corresponding to the width of the surface 51d.
  • the lower rim portion 51c may be formed with a circulation water outlet 51h1 through which water is discharged from the inner tank 50 when the impeller 70 rotates.
  • the connecting duct 61 is disposed outside the inner tank 50 and has one end formed with the inlet 61h connected to the circulating water outlet 51h1.
  • the inner tub base 51 may further include a ring-shaped duct coupling portion 51a (see FIG. 3) extending from the upper end of the upper rim portion 51b to the outer peripheral side of the inner tub base 51.
  • a duct connecting hole 51h2 may be formed in the duct connecting portion 51a.
  • the guide duct 62 may be a separate component from the connecting duct 61 and may be connected to the connecting duct 61 through the duct connecting hole 51h2.
  • On the inner circumferential surface of the duct connecting portion 51a a plurality of upward projecting portions 51e may be formed along the circumferential direction.
  • the driven shaft 132 When the driven shaft 132 is coupled to the drive shaft 310 by the clutch 37, the driven shaft 132 and the drive shaft 310 are rotated together. Conversely, when the clutch 37 is rotated When the driven shaft 132 is disengaged from the drive shaft 310, the drive shaft 310 is rotated while the driven shaft 132 is stopped.
  • the power transmitting apparatus 100 transmits the power of the driving unit 6 to the pulsator 26 and the impeller 70, and the pulsator 26 and the impeller 70 And a planetary gear train 200 for rotating the planetary gear train at a speed.
  • the impeller 70 is rotated faster than the pulsator 26.
  • the bearing housing 25 may include an upper housing 23 coupled with the bottom of the outer tank 41 and a lower housing 24 to which the driving unit 6 is coupled.
  • the upper housing 23 has a cylindrical coupling tube portion 23a inserted into a through hole formed at the center of the outer tub bottom portion 41 and a lower tubular portion 23b extending outwardly from the outer peripheral surface of the coupling tube portion 23a, And an engaging plate portion 23b fixed to the engaging portion 23b.
  • the inner tubular connection shaft 121 passes through the coupling tube portion 23a and the bearing 375 is disposed between the inner peripheral surface of the coupling tube portion 23a and the outer peripheral surface of the inner tubular connection shaft 121.
  • the outer circumferential surface defining the outer diameter is coupled with the inner circumferential surface of the coupling tube portion 23a and the inner circumferential surface defining the inner diameter is coupled with the outer circumferential surface of the inner tubular connecting shaft 121.
  • the bearing 375 is provided with rolling members such as balls and rollers between the outer circumferential surface defining the outer diameter and the inner circumferential surface defining the inner circumferential surface so that when the inner circumferential connecting shaft 121 is rotated, The specified inner circumferential surface can be rotated with respect to the outer circumferential surface defining the outer diameter.
  • the lower housing 24 is disposed on the lower side of the upper housing 23 so as to form a space in which the power transmission device 100 is received between the lower housing 24 and the upper housing 23.
  • a coupling member such as a screw or bolt 381 may pass through the lower housing 24 and the upper housing 23 in order and then be coupled to the bottom of the outer tank 41.
  • the power transmission apparatus 100 may include a tubular driven shaft 132 having a drive shaft 310 inserted therein and an opening through which the driven shaft 132 passes is formed at a center portion of the lower housing 24.
  • a bearing 374 for rotatably supporting the driven shaft 132 may be disposed in the lower housing 24.
  • the bearing 374 may be constructed in substantially the same manner as the bearing 375 described above.
  • the clutch 37 is engaged with the driven shaft 310 and the drive shaft 310 so that the drive shaft 310 and the driven shaft 132 are integrally rotated so that the driven shaft 132 and the drive shaft 310 are coupled to each other (for example, Or the driven shaft 132 is disengaged from (or separated from) the drive shaft 310 so that only the drive shaft 310 is rotated in a state where the driven shaft 132 is stopped (Pumping mode).
  • the power transmission apparatus 100 may include a planetary gear train 200 and a gear housing 110 that receives the planetary gear train 200.
  • the planetary gear train 200 may include a ring gear 210, a first sun gear 220, a second sun gear 230, a carrier 240 and a pinion gear 250.
  • the planetary gear train 200 converts rotational force inputted through the drive shaft 310 into two outputs for rotating the impeller 70 and the pulsator 26.
  • the ring gear 210 can be fixed in the gear housing 110 as an internal gear.
  • the planetary gear train 200 is supplied with power (or rotational force) through the first sun gear 220 connected to the drive shaft 310, and the output through the second sun gear 230 is transmitted to the impeller 70 And the output through the carrier 240 rotates the pulsator 26.
  • the gear housing 110 is rotated by the drive shaft 310 when the clutch 37 is in the internal rotation rotation mode.
  • the gear housing 110 includes a driven shaft 132 and an inner tubular connecting shaft 121.
  • the gear housing 110 is generally a hollow shaft.
  • the upper end of the gear housing 110 constitutes an inner tubular connecting shaft 121 connected to the inner tub 50 by a hub 31 and an impeller connecting shaft 350 in a hollow defined by the inner tubular connecting shaft 121 .
  • the lower end of the gear housing 110 constitutes a driven shaft 132 and the drive shaft 310 is disposed in the hollow defined by the driven shaft 132.
  • the driven shaft 132 can be axially or axially disengaged from the drive shaft 310 by the clutch 37.
  • a receiving portion 122 for receiving the planetary gear train 200 is formed between the upper end portion 121 and the lower end portion 132 of the gear housing 110.
  • the ring gear 210 can be fixed in the receiving portion 122.
  • the gear housing 110 may include an upper gear housing 120 and a lower gear housing 130.
  • the inner race connecting shaft 121 and the receiving portion may be formed by the upper gear housing 120.
  • the upper gear housing 120 and the lower gear housing 130 may be coupled by fastening members 382 such as screws or bolts.
  • the driven shaft 132 may be formed by the lower gear housing 130.
  • the lower gear housing 130 includes a flange portion 131 that extends outward along the radial direction from the upper end of the driven shaft 132 and has a substantially horizontal shape and is coupled to the lower end portion of the receiving portion 122 can do.
  • the ring gear supporter 320 supports the ring gear 210 in the receiving portion 122 of the gear housing 110.
  • the ring gear supporter 320 is coupled to the upper side of the flange portion 131.
  • the ring gear supporter 320 is entirely ring-shaped, and the drive shaft 310 passes through the center of the ring gear supporter 320.
  • At least one engaging projection 131a may protrude from either the upper surface of the flange portion 131 or the bottom surface of the ring gear supporter 320.
  • a plurality of coupling protrusions 131a may be provided along the circumferential direction.
  • a coupling hole 322 into which the coupling projection 131a is inserted is formed in the other of the upper surface of the flange portion 131 and the lower surface of the ring gear supporter 320 at a position corresponding to each coupling projection 131a .
  • At least one engaging projection 321 may protrude from either the upper surface of the ring gear supporter 320 or the lower surface of the ring gear 210.
  • a plurality of coupling protrusions 321 may be provided along the circumferential direction.
  • a coupling groove into which the coupling protrusion 321 is inserted may be formed in the other of the upper surface of the ring gear supporter 320 and the lower surface of the ring gear 210 at a position corresponding to each coupling protrusion 321 have.
  • the carrier 240 may be disposed in the receiving portion 122 of the gear housing 110.
  • a first sun gear 220 and a second sun gear 230 are arranged coaxially with each other.
  • a plurality of pinion gears 250 (1), 250 (2), 250 (3) and 250 (4) arranged along the circumference of the sun gears 220 and 230 are rotatably supported by the carrier 240 .
  • the carrier 240 includes a ring-shaped upper plate portion 241 having a center portion opened, a ring-shaped lower plate portion 242 disposed at a lower side than the upper plate portion 241 and having a central portion opened, an upper plate portion 241, And a shaft coupling plate 243 disposed between the lower plate portion 242 and the lower end of the pulsator coupling shaft 340.
  • the shaft coupling plate 243 may include a plurality of arms 243a extending radially from a central portion to which the pulsator connecting shaft 340 is coupled.
  • the arm 243a may be provided in a corresponding number to the pinion gears 250 (1), 250 (2), 250 (3), 250 (4), and pinion gears (250) may be disposed, respectively.
  • four pinion gears 250 are provided in four regions separated by four arms 243a.
  • Coupling grooves 243r may be formed at the center of the shaft coupling plate 243 to receive the lower ends of the pulsator coupling shafts 340.
  • the coupling groove 243r may be formed on the upper surface of the central portion.
  • the coupling between the pulsator coupling shaft 340 and the coupling groove 243r may be a spline or serration coupling so that a spline or serration may be formed at the lower end of the pulsator coupling shaft 340,
  • a groove engaging with the spline or serration may be formed on the inner circumferential surface of the coupling groove 243r.
  • a fastening member such as a screw or bolt which penetrates the shaft coupling plate 243 from the lower side to the upper side and engages with the lower end of the pulsator connecting shaft 340.
  • the coupling plate 243 may not be provided with the coupling groove 243r.
  • the coupling groove 243r when the coupling groove 243r is formed as in the embodiment, the bottom surface of the shaft coupling plate 243 can protrude further downward than the peripheral portion, corresponding to the coupling groove 243r, A groove may be formed on the upper surface of the impeller coupling shaft coupler 360 (see FIGS. 7 to 8) for connecting the first sun gear 220 to the drive shaft 310.
  • the lower plate 242 and the shaft coupling plate 243 can be connected by a lower support 244.
  • the lower plate portion 242 includes a ring-shaped lower plate ring 242a having a substantially horizontal flat plate shape and opening at its center and a plurality of engaging bosses 242b projecting from the upper surface of the lower plate ring 242a and disposed along the circumferential direction .
  • coupling grooves may be formed at positions corresponding to the plurality of coupling bosses 242b, respectively.
  • the lower support 244 is elongated in the vertical direction, and the upper end may be inserted into the engagement groove and the lower end may be inserted into the engagement boss 242b.
  • the upper plate 241 and the shaft coupling plate 243 can be connected by an upper support 245.
  • the upper plate portion 241 includes a ring-shaped upper plate ring 241a having a center portion of a substantially horizontal flat plate open and a plurality of engaging bosses 241b projecting from the bottom surface of the upper plate ring 241a and arranged along the circumferential direction .
  • Coupling grooves may be formed on the upper surface of the shaft coupling plate 243 at positions corresponding to the plurality of coupling bosses 241b.
  • the upper support 245 is elongated in the vertical direction. The lower end of the upper support 245 may be inserted into the coupling groove, and the upper end of the upper support 245 may be inserted into the coupling boss 241b.
  • the carrier 240 may include a plurality of pinion gear shafts 246 connecting the upper plate portion 241 and the lower plate portion 242.
  • the plurality of pinion gear shafts 246 may be disposed at regular intervals along the circumferential direction, and each pinion gear shaft 246 may pass through an area between the arms 243a.
  • the pinion gear 250 can be fitted to each pinion gear shaft 246.
  • the pinion gear 250 can be supported by the ring gear supporter 320. Fig. That is, the pinion gear 250 can be rotated with its lower end in contact with the upper surface of the ring gear supporter 320. More specifically, the pinion gear 250 includes a cylindrical gear body 251 having gears formed on the outer circumferential surface thereof, and a ring-shaped gear body 251 protruding from the bottom surface of the gear body 251 along the periphery of the opening through which the pinion gear shaft 246 passes And the lower support rib 253 always contacts the upper surface of the ring gear supporter 320 when the pinion gear 250 is rotated.
  • the pinion gear 250 meshes with the sun gears 220 and 230 and is engaged with the ring gear 210 at the same time.
  • the first sun gear 220 is disposed on the lower side of the shaft coupling plate 243 and the second sun gear 230 is disposed on the upper side of the shaft coupling plate 243, Is engaged with the sun gear (220), and the upper portion is engaged with the second sun gear (230).
  • the power transmission apparatus 100 may include an impeller coupling axis coupler 360 connecting (coupling) the first sun gear 220 and the drive shaft 310.
  • the lower end of the impeller coupling shaft coupler 360 is coupled to the drive shaft 310 and the upper end is coupled to the center of the first sun gear 220.
  • the power transmission apparatus 100 may include a drive shaft coupler 330 connecting (coupling) the two-wire gear 230 and the impeller coupling shaft 350.
  • the upper end of the drive shaft coupler 330 is coupled to the impeller coupling shaft 350 and the lower end thereof is coupled to the center of the second sun gear 230.
  • the second sun gear 230 is rotated by the rotation of the pinion gears 250, and the drive shaft coupler 330 is also rotated at this time.
  • the drive shaft coupler 330 may include a tubular coupler body 331 coupled to the impeller coupling shaft 350 and a generally circular flange 332 extending from the outer peripheral surface of the coupler body 331 .
  • the flange 332 is located in the opening formed in the center of the upper plate portion 241 of the carrier 240 and the outer diameter can be larger than the outer diameter of the second sun gear 230.
  • the flange 332 may be supported by the pinion gears 250 so as to protrude further outward than the second sun gear 230.
  • the pinion gear 250 may include a ring-shaped upper support rib 252 protruding from the upper surface of the gear body 251 around the opening through which the pinion gear shaft 246 passes. When the pinion gear 250 is rotated, the upper support rib 252 always contacts the bottom surface of the protruding portion of the flange 332.
  • a pulsator connection shaft 340 passes through the hollow of the coupler body 331 and a bearing 371 for rotatably supporting the pulsator connection shaft 340 may be disposed in the hollow.
  • the bearing 371 is preferably an oilless bearing but is not limited thereto.
  • the outer peripheral surface of the bearing 371 is in contact with the inner peripheral surface of the coupler main body 331 and the inner peripheral surface of the bearing 371 is in contact with the outer peripheral surface of the pulsator connection shaft 340.
  • the impeller connecting shaft 350 is a shaft having a hollow through which the pulsator connecting shaft 340 passes and the lower end is inserted through the opened upper end of the coupler main body 331, .
  • the lower end of the impeller connecting shaft 350 inserted into the coupler main body 331 is positioned in a region at least partially spaced from the outer peripheral surface of the pulsator connecting shaft 340 in correspondence with the thickness t of the bearing 371 do. That is, the hollow formed in the coupler main body 331 can be divided into a first area in which the bearing 371 is received and a second area located above the first area, and in particular, The inner circumferential surface of the main body 331 is spaced apart from the outer circumferential surface of the pulsator connecting shaft 340 and the lower end of the impeller connecting shaft 350 is inserted into the thus separated space.
  • the hollow of the coupler body 331 has a diameter in the second region that is less than or equal to the diameter in the first region.
  • the outer diameter of the upper end of the coupler main body 331 is determined by excluding the thickness of the bearing 371 and by adjusting the diameter of the pulsator connecting shaft 340, the thickness of the impeller connecting shaft 350, The outer diameter of the upper end portion of the coupler main body 331 is set such that the bearing 371 is disposed in the upper end portion between the sheath connecting shaft 340 and the impeller connecting shaft 350 There is an effect that can be reduced.
  • a spline or serration 331s may be formed on the inner circumferential surface of the upper end of the coupler main body 331 and a groove may be formed on the outer circumferential surface of the lower end of the impeller coupling shaft 350 to engage with the spline or serration.
  • the impeller connecting shaft 350 may include a small diameter portion 350a and a large diameter portion 350b extending from the upper end of the small diameter portion 350a and having an outer diameter larger than that of the small diameter portion 350a.
  • the small diameter portion 350a is inserted into the hollow of the inner tubular connecting shaft 121 (that is, the upper end of the gear housing 110), and the large diameter portion 350b is inserted into the hollow of the impeller hub (Not shown).
  • the outer diameter of the large-diameter portion 350b is preferably equal to or smaller than the outer diameter of the upper end of the inner tubular connection shaft 121, but is not limited thereto.
  • the portion of the drive shaft coupler 330 which is fitted to the coupler main body 331 is the lower end portion of the small diameter portion 350a and the small diameter portion 350b is located on the upper side of the coupler main body 331 with at least one bearing 372 , 373).
  • the ring-shaped stopper 341 can be fitted to the impeller connecting shaft 350 and the downward displacement of the bearing 372 is restricted by the stopper 341.
  • a stepped portion contacting the upper surface of the bearing 372 may be formed on the inner circumferential surface of the impeller coupling shaft 350. The upward displacement of the bearing 372 is limited by the stepped portion.
  • a bearing 373 may further be provided on the upper side of the bearing 372.
  • a stepped portion on which the bottom surface of the bearing 373 is seated may be formed on the inner peripheral surface of the inner tubular connection shaft 121.
  • the downward displacement of the bearing 373 is restricted by the stepped portion where the bottom surface of the bearing 373 is seated.
  • an upper stopper 342 which is located on the upper side of the stepped portion where the bottom surface of the bearing 373 is seated and protrudes from the outer circumferential surface of the impeller connecting shaft 350 can be further formed. By the upper stopper 342 The upward displacement of the bearing 373 is restricted.
  • the upper stopper 373 may be formed in a ring shape.
  • the pulsator connecting shaft 340 can protrude outward along the radial direction from the portion located in the large-diameter portion 350b, and the ribs 345 can protrude from the inner circumferential surface of the large-
  • the rib 345 may have a shape corresponding to that of the rib 345, and a groove into which the rib 345 is inserted may be formed.
  • the ribs 345 may be in the form of a ring. Due to the structure in which the ribs 345 are fitted in the grooves, the pulsator connecting shaft 340 and the impeller connecting shaft 350 are prevented from being displaced upward and downward with respect to each other.
  • Figure 17 shows another embodiment of pulsator.
  • the pulsator 500 includes an inner pulsator 510 and an outer pulsator 520 having an outer diameter larger than that of the inner pulsator 510 and disposed below the inner pulsator 510, . ≪ / RTI >
  • the present invention can be applied to rotate the inner pulsator 510 and the outer pulsator 520 at different speeds. That is, the inner pulsator 510 is connected to one of the two connection shafts 340 and 350 rotated by the planetary gear train 200, and the outer pulsator 520 is connected to the other connection shaft 340, Lt; / RTI >

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

Abstract

La présente invention concerne un appareil de traitement de linge comprenant : une cuve extérieure dans laquelle est versée de l'eau de lavage ; une cuve intérieure qui accueille le linge et est disposée rotative à l'intérieur de la cuve extérieure ; un pulsateur disposé rotatif à l'intérieur de la cuve intérieure ; un arbre de liaison de pulsateur relié au pulsateur ; une roue disposée rotative sous le pulsateur à l'intérieur de la cuve intérieure ; un arbre de liaison de roue qui est relié à la roue et comporte un premier creux, à travers lequel passe l'arbre de liaison de pulsateur ; une unité d'entraînement pour apporter une force de rotation ; un arbre d'entraînement mis en rotation par l'unité d'entraînement ; et un train épicycloïdal pour mettre en rotation l'arbre de liaison de pulsateur et l'arbre de liaison de roue à différentes vitesses par la transmission de la rotation de l'arbre d'entraînement, le train épicycloïdal comprenant : une couronne dentée ; un premier planétaire disposé à l'intérieur de la couronne dentée et mis en rotation par l'arbre d'entraînement ; de multiples pignons qui sont mis en rotation par le premier planétaire et tournent autour de la couronne dentée ; un deuxième planétaire disposé au-dessus du premier planétaire et mis en rotation par les multiples pignons ; et un support qui est accouplé à l'arbre de liaison de pulsateur, supporte les multiples pignons pour qu'ils puissent tourner, et fait tourner l'arbre de liaison de pulsateur en étant mis en rotation quand les multiples pignons tournent, l'appareil de traitement de linge comprenant en outre un organe d'accouplement d'arbre de liaison de roue, dont l'extrémité inférieure est accouplée au centre du deuxième planétaire, et dont l'extrémité supérieure est accouplée à l'arbre de liaison de roue, et qui fait tourner l'arbre de liaison de roue tout en tournant d'un seul tenant avec le deuxième planétaire quand le deuxième planétaire est mis en rotation par les multiples pignons, l'organe d'accouplement d'arbre de liaison de roue comprenant : un corps d'organe d'accouplement ayant un deuxième creux, à travers lequel passe l'arbre de liaison de pulsateur ; et un roulement qui est intercalé entre la surface circonférentielle intérieure du corps d'organe d'accouplement, délimitant le deuxième creux, et la surface circonférentielle extérieure de l'arbre de liaison de pulsateur, et qui supporte l'arbre de liaison de pulsateur, le corps d'organe d'accouplement étant conçu de telle sorte que l'extrémité inférieure de l'arbre de liaison de roue est introduit dans une zone espacée de la surface circonférentielle extérieure de l'arbre de liaison de pulpulsateur de manière à correspondre à l'épaisseur du roulement, la zone étant disposée au-dessus de la partie où est accueilli le roulement.
PCT/KR2018/007002 2017-06-21 2018-06-21 Appareil de traitement de linge Ceased WO2018236159A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2017-0078771 2017-06-21
KR1020170078771A KR102316359B1 (ko) 2017-06-21 2017-06-21 세탁물 처리장치

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KR102503952B1 (ko) * 2021-01-29 2023-02-27 엘지전자 주식회사 의류처리장치
KR102503953B1 (ko) * 2021-01-29 2023-02-27 엘지전자 주식회사 의류처리장치

Citations (5)

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Publication number Priority date Publication date Assignee Title
KR20130037411A (ko) * 2011-10-06 2013-04-16 주식회사 대우일렉트로닉스 임펠러를 구비하는 세탁기
JP2014083383A (ja) * 2012-10-26 2014-05-12 Haier Asia International Co Ltd 洗濯機
JP2015029546A (ja) * 2013-07-31 2015-02-16 株式会社東芝 洗濯機
US20170002499A1 (en) * 2014-01-22 2017-01-05 Haier Group Corporation Washing machine decelerating clutch and washing machine
KR20170042223A (ko) * 2015-10-08 2017-04-18 엘지전자 주식회사 세탁기

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Publication number Priority date Publication date Assignee Title
KR100672497B1 (ko) * 2000-06-21 2007-01-23 엘지전자 주식회사 세탁기의 기어하우징
KR101918984B1 (ko) 2011-11-03 2018-11-16 엘지전자 주식회사 세탁기

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Publication number Priority date Publication date Assignee Title
KR20130037411A (ko) * 2011-10-06 2013-04-16 주식회사 대우일렉트로닉스 임펠러를 구비하는 세탁기
JP2014083383A (ja) * 2012-10-26 2014-05-12 Haier Asia International Co Ltd 洗濯機
JP2015029546A (ja) * 2013-07-31 2015-02-16 株式会社東芝 洗濯機
US20170002499A1 (en) * 2014-01-22 2017-01-05 Haier Group Corporation Washing machine decelerating clutch and washing machine
KR20170042223A (ko) * 2015-10-08 2017-04-18 엘지전자 주식회사 세탁기

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