WO2020082981A1 - 变阻尼减震器和衣物处理设备 - Google Patents

变阻尼减震器和衣物处理设备 Download PDF

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Publication number
WO2020082981A1
WO2020082981A1 PCT/CN2019/108275 CN2019108275W WO2020082981A1 WO 2020082981 A1 WO2020082981 A1 WO 2020082981A1 CN 2019108275 W CN2019108275 W CN 2019108275W WO 2020082981 A1 WO2020082981 A1 WO 2020082981A1
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WO
WIPO (PCT)
Prior art keywords
ring
damping
shock absorber
friction ring
opening
Prior art date
Application number
PCT/CN2019/108275
Other languages
English (en)
French (fr)
Chinese (zh)
Inventor
赵志强
许升
尹俊明
舒海
Original Assignee
青岛海尔滚筒洗衣机有限公司
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 青岛海尔滚筒洗衣机有限公司 filed Critical 青岛海尔滚筒洗衣机有限公司
Priority to JP2021522065A priority Critical patent/JP7141527B2/ja
Publication of WO2020082981A1 publication Critical patent/WO2020082981A1/zh

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F7/00—Vibration-dampers; Shock-absorbers
    • F16F7/08—Vibration-dampers; Shock-absorbers with friction surfaces rectilinearly movable along each other
    • F16F7/09—Vibration-dampers; Shock-absorbers with friction surfaces rectilinearly movable along each other in dampers of the cylinder-and-piston type

Definitions

  • the invention belongs to the field of damping and damping devices, and specifically provides a variable damping shock absorber and clothes processing equipment.
  • the existing drum washing machine mainly includes a box body, an outer cylinder and an inner cylinder.
  • the outer cylinder is fixedly connected with the box body through a hanging spring and a shock absorber.
  • the top of the outer cylinder is fixedly connected to the top of the box body through a hanging spring
  • the bottom of the outer cylinder is fixedly connected to the bottom of the box body through a shock absorber.
  • the inner cylinder is rotatably provided in the outer cylinder.
  • the inner tub will drive the outer tub to shake up and down, left and right together when it rotates.
  • the setting of hanging springs and shock absorbers can reduce the shaking strength and amplitude of the outer cylinder.
  • the shock absorber can absorb and eliminate the vibration of the washing machine, prevent the washing machine from crawling, and reduce the noise of the washing machine, thereby ensuring the performance of the washing machine and extending the life of the washing machine.
  • the damping force generated by the shock absorber in the prior art is usually a constant value and cannot be adapted to all working conditions of the washing machine.
  • the amplitude generated by the outer tub is small and the required damping force is also small; when the washing machine performs washing, rinsing and low-speed dehydration, the amplitude generated by the outer tub is large and the required damping force is also large.
  • a patent document with publication number CN1519418A discloses a shock absorber, which includes a cylinder, a piston rod inserted into the cylinder, and a movable damping member sleeved on the piston rod.
  • the piston rod is provided with an annular groove for installing a movable damping member, and the diameter of the annular groove gradually increases from the middle to both sides.
  • the damping force between the movable damping member and the cylinder is small, which is used to eliminate the vibration generated when the washing machine is dehydrated at high speed; when the movable damping member is located in the annular At the two sides of the tank, the damping force between the movable damping member and the cylinder is large, which is used to eliminate the vibration generated during washing, rinsing, and low-speed dehydration of the washing machine.
  • the movable damping member is easily deformed by both ends of the annular groove, and thus cannot be matched with the intermediate position of the annular groove , So that the shock absorber loses its damping effect when the washing machine dehydrates at high speed, thereby making the washing machine more noisy.
  • variable damping shock absorber includes Sleeve, plunger and damping ring; an annular reducing groove is formed on the plunger, the plunger is slidably inserted into the sleeve in the axial direction, so that the reducing groove is always located in the sleeve Inside the barrel; the damping ring is sleeved in the reducing groove, and the outer end of the damping ring is against the inner wall of the sleeve; the damping ring can be deformed in the radial direction to make the damping ring
  • the diameter of the inside end of ⁇ matches the diameter of the reducing groove.
  • the damping ring is provided with an opening, and the damping ring can become larger in the radial direction as the opening becomes larger and in the radial direction as the opening becomes smaller Radial becomes smaller.
  • the damping ring includes an inner friction ring slidingly connected with the plunger and an outer friction ring slidingly connected with the sleeve, and the opening includes A first opening on the inner friction ring, the first opening makes the inner friction ring form a split ring; the outer friction ring is sleeved on the outer side of the inner friction ring.
  • the outer friction ring is an integrally formed ring structure.
  • the opening includes a second opening formed on the outer friction ring, and the second opening makes the outer friction ring form a split ring.
  • the outer friction ring includes a plurality of friction plates arranged at equal intervals along the circumferential direction of the inner friction ring.
  • variable damping shock absorber the two lateral ends of the outer friction ring in the axial direction are respectively provided with a plurality of convex structures.
  • the damping ring is made of an elastic material; and / or, the reducing groove is a stepped annular groove; and / or, the diameter of the reducing groove Increasing gradually from the middle to both sides; and / or, the reducing grooves are arranged symmetrically in the radial direction.
  • the present invention also provides a laundry treatment apparatus including the variable damping shock absorber according to any one of the above preferred embodiments.
  • the laundry treatment apparatus includes at least one of a washing machine, a clothes dryer, and an integrated washing and drying machine.
  • the radially deformable damping ring of the present invention can not only adapt to the diameter change of the reducing groove, but also effectively improve the reliability of the shock absorber compared with the conventional damping ring that cannot deform in the radial direction , And increased service life.
  • the damping ring of the present invention is provided with an opening.
  • the opening becomes larger; when the damping ring becomes smaller in the radial direction, the opening becomes smaller.
  • the damping ring of the present invention can achieve radial deformation by changing the size of the opening thereon. Therefore, compared with the damping ring in the prior art, the damping ring of the present invention effectively avoids the irreversible deformation in thickness when the damping ring is pressed for a long time in the radial direction, and ensures the reliability of the shock absorber Sex.
  • variable damping shock absorber of the present invention is a side view of the variable damping shock absorber of the present invention
  • variable damping shock absorber of the present invention is a schematic structural explosion diagram of the variable damping shock absorber of the present invention
  • Figure 3 is an enlarged view of part A in Figure 2;
  • FIG. 4 is a front view of the variable damping shock absorber of FIG. 1;
  • FIG. 5 is a cross-sectional view along B-B direction in FIG. 4;
  • FIG. 6 is an enlarged view of part C in FIG. 5;
  • FIG. 7 is a cross-sectional view taken along the E-E direction in FIG. 6;
  • FIG. 8 is a cross-sectional view along F-F direction in FIG. 6;
  • FIG. 9 is a cross-sectional view along G-G direction in FIG. 6;
  • FIG. 10 is a cross-sectional view along H-H direction in FIG. 6;
  • Fig. 11 is a cross-sectional view taken along the J-J direction in Fig. 6.
  • variable damping shock absorber of the present invention can also be applied to any other feasible equipment, such as automobiles , Motorcycles, electric cars, bicycles, etc.
  • a person skilled in the art may adjust it as needed to adapt to a specific application occasion, and the adjusted technical solution will still fall within the protection scope of the present invention.
  • connection should be understood in a broad sense, for example, it can be a fixed connection or a It is a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication between the two components.
  • connection should be understood in a broad sense, for example, it can be a fixed connection or a It is a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication between the two components.
  • connection should be understood in a broad sense, for example, it can be a fixed connection or a It is a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication between the two components.
  • the variable damping shock absorber of the present invention mainly includes a sleeve 1, a plunger 2 and a damping ring 3.
  • the plunger 2 is slidably inserted into the sleeve 1 in the axial direction
  • the damping ring 3 is disposed between the sleeve 1 and the plunger 2 in the radial direction
  • the outer end (outer circumferential surface) of the damping ring 3 and the sleeve The inner wall of 1 abuts, and the inner end (inner circumferential surface) of the damping ring 3 abuts the outer wall (outer side wall) of the plunger 2.
  • the damping ring 3 When the plunger 2 slides relative to the sleeve 1 in the axial direction, the damping ring 3 can generate a damping force, which prevents the plunger 2 from sliding. Further, in order to avoid the abrasion of the damping ring 3 when sliding, the inner end and / or the outer end of the damping ring 3 are also provided with damping grease. Specifically, the damping grease may be provided on the inner end and / or the outer end of the damping ring 3 by coating.
  • the ends of the sleeve 1 and the plunger 2 that are away from each other are respectively provided with hinge rings (not shown in the figure), so that the sleeve 1 can be connected to other structures, devices or equipment through the hinge rings on the sleeve 1 With the pivotal connection, the plunger 2 can be pivotally connected with other structures, devices or equipment through the hinge ring thereon.
  • the plunger 2 is provided with an annular reducing groove 21, and the diameter of the reducing groove 21 gradually increases from the middle to both sides.
  • the reducing groove 21 is a stepped annular groove.
  • the reducing groove 21 is symmetrically arranged in the radial direction. Specifically, as shown in FIG. 3, the reducing groove 21 is bilaterally symmetrical in the up-down direction in FIG. 3, and the left and right parts of the reducing groove 21 are stepped annular grooves, respectively, and the diameters of the multiple steps are from the middle Increasing outwards.
  • the right end of the reducing groove 21 in FIG. 6 is referred to as the first side end, and the left end of the reducing groove 21 in FIG. 6 is referred to as the second side end.
  • the portion between the intermediate position of the reducing groove 21 and the first side end includes five annular grooves from left to right: D1, D2, D3, D4, and D5.
  • the numerical relationship between the diameters of the five annular grooves is: D1 ⁇ D2 ⁇ D3 ⁇ D4 ⁇ D5.
  • the portion between the intermediate position of the reducing groove 21 and the second side end includes five annular grooves from right to left: D1, D2, D3, D4, and D5.
  • the two adjacent annular grooves are smoothly transitioned by arc chamfering, so that the damping ring 3 can smoothly move between the individual annular grooves.
  • the number of stepped annular grooves in the reducing groove 21 is not limited to the above five (D1, D2, D3, D4, and D5), but may be any other number. For example, two, three, four, six, seven, eight, etc.
  • a person skilled in the art may also set the reducing groove 21 as an annular groove that smoothly transitions along the axis direction according to needs, preferably the cutting surface of the reducing groove 21 in the axial direction The edges are curved.
  • the reducing groove 21 is provided as an equal-diameter annular groove.
  • the damping ring 3 of the present invention mainly includes an inner friction ring 31 and an outer friction ring 32.
  • the inner friction ring 31 is sleeved on the outer side of the plunger 2
  • the outer friction ring 32 is sleeved on the outer side of the inner friction ring 31, and the outer end of the outer friction ring 32 against the inner wall of the sleeve 1.
  • a first opening 311 is formed on the inner friction ring 31, and the existence of the first opening 311 makes the inner friction ring 31 form a split ring.
  • the first opening 311 becomes larger; when the inner friction ring 31 is deformed in the radial direction and the diameter becomes smaller, the first opening 311 becomes smaller.
  • a second opening 321 is formed on the outer friction ring 32.
  • the presence of the second opening 321 makes the outer friction ring 32 form a split ring.
  • the second opening 321 becomes larger; when the outer friction ring 32 deforms in the radial direction and the diameter becomes smaller, the second opening 321 becomes smaller.
  • the outer friction ring 32 is provided with a plurality of convex teeth 322 at both ends in the axial direction.
  • the plurality of convex teeth 322 are arranged at equal intervals along the circumferential direction of the outer friction ring 32. It is not difficult to see from FIG. 3 that in the preferred embodiment of the present invention, the convex teeth 322 are strip-shaped convex structures, and the extension line of each convex tooth 322 intersects the axis of the outer friction ring 32.
  • the outer friction ring 32 can interpose the inner friction ring 31 in the middle through the convex teeth 322 on both sides thereof to prevent the inner friction ring 31 from shaking axially relative to the outer friction ring 32.
  • the length of each convex tooth 322 and the sum of the widths of the inner friction ring 31 and the outer friction ring 32 in the radial direction are equal or close to equal.
  • a person skilled in the art may also make the inner diameter of the annular structure composed of a plurality of convex teeth 322 slightly smaller than the inner diameter of the inner friction ring 31 as needed. That is, the inner end of each convex tooth 322 is made closer to the axis of the inner friction ring 31 than the inner end of the inner friction ring 31.
  • both the inner friction ring 31 and the outer friction ring 32 are made of elastic materials.
  • the material is porous polyurethane or elastic rubber.
  • a person skilled in the art may also make the inner friction ring 31 made of metal as needed, for example, the inner friction ring 31 is provided as a C-shaped metal spring piece.
  • the outer friction ring 32 also made of metal as needed, for example, the outer friction ring 32 is provided as a C-shaped metal spring piece.
  • the convex teeth 322 can play a role of noise reduction and noise reduction. Specifically, during the movement of the damping ring 3 in the reducing groove 21, the convex teeth 322 will contact and collide with the side wall of the reducing groove 21 before the inner friction ring 31 and the outer friction ring 32.
  • the side wall includes the side walls at both ends of the reducing groove 21 and the side walls of each annular groove (D1, D2, D3, D4, and D5) in the reducing groove 21.
  • the convex teeth 322 are easier to deform than the inner friction ring 31 and the outer friction ring 32, when the convex teeth 322 collide with the side wall, they can quickly absorb the energy generated by the collision, which can reduce noise and avoid noise. produce.
  • variable damping shock absorber of the present invention The working principle of the variable damping shock absorber of the present invention will be described in detail below with reference to FIGS. 6 to 11 in combination with a drum washing machine.
  • the drum washing machine of the present invention includes a cabinet, an outer cylinder, an inner cylinder, a tension spring, and a variable damping shock absorber.
  • the top of the outer cylinder is connected to the top of the box body through a tension spring
  • the bottom of the outer cylinder is connected to the bottom of the box body through a variable damping shock absorber.
  • the inner cylinder is rotatably provided in the outer cylinder. Since other structural features of the drum-type washing machine are well-known to those skilled in the art, they will not be described here.
  • the inner friction ring 31 can be changed in diameter
  • the diameter of the groove 21 changes to squeeze or pull the outer friction ring 32 outwards, thereby changing the pressure of the outer friction ring 32 on the sleeve 1, and thus realizes the function of variable damping of the shock absorber's partial stroke.
  • the damping ring 3 of the present invention can prevent the irreversible deformation of the thickness of the damping ring 3 during the long-term use of the damping ring 3 compared with the conventional friction member without openings, and ensures the reliability of the variable damping shock absorber.
  • a person skilled in the art may also set the reducing groove 21 into an arc-shaped reducing groove as needed. That is, the edge of the cross section of the reducing groove 21 in the axial direction is provided in an arc shape.
  • a person skilled in the art may also arrange the reducing groove 21 on the sleeve 1 as needed, and make the inner friction ring 31 and the plunger The outer wall of 1 is always offset.
  • variable-diameter groove 21 may also set the variable-diameter groove 21 as an equal-diameter annular groove as needed.
  • the outer friction ring 32 includes a plurality of damping rings 3
  • the friction plates are equally spaced in the circumferential direction, and two adjacent friction plates are independent of each other.
  • the multiple friction plates are respectively fixed to the outer end of the inner friction ring 31 by inlaying, or a person skilled in the art can also fix the multiple friction plates and the inner friction ring 31 together by any other feasible connection methods as needed. , Such as screw connection, welding, snapping, etc.
  • two protruding teeth 322 are provided on both ends of each friction plate.
  • the friction plate can be made of any feasible material, such as elastic rubber, metal, porous polyurethane, and the like.
  • a person skilled in the art may also set the damping ring 3 as a whole according to needs, and provide an opening thereon. That is, the inner friction ring 31 and the outer friction ring 32 are provided as a whole, and the first opening 311 and the second opening 321 are connected together. At this time, the convex teeth 322 are formed on the side ends of the inner friction ring 31 and the outer friction ring 32.
  • a person skilled in the art may also set the first opening 311 so that the inner friction ring 31 cannot form an open ring as needed; and / or, The second opening 321 is provided so that the outer friction ring 32 cannot form a split ring.
  • the present invention also provides a laundry treatment apparatus including a drum-type washing machine, a drum-type dryer, a drum-type washer-dryer, a pulsator-type washing machine, a wave At least one of a wheel dryer and a pulsator washer-dryer.
  • the laundry treatment apparatus also includes the above-mentioned variable damping shock absorber.
  • the drum-type washing machine will be exemplified below.
  • the drum type washing machine includes a cabinet, an outer tub, an inner tub, a tension spring, and a variable damping shock absorber.
  • the top of the outer cylinder is connected to the top of the box body through a tension spring
  • the bottom of the outer cylinder is connected to the bottom of the box body through a variable damping shock absorber.
  • the inner cylinder is rotatably provided in the outer cylinder. Since other structural features of the drum-type washing machine are well-known to those skilled in the art, they will not be described here.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Dampers (AREA)
  • Vibration Prevention Devices (AREA)
  • Fluid-Damping Devices (AREA)
PCT/CN2019/108275 2018-10-23 2019-09-26 变阻尼减震器和衣物处理设备 WO2020082981A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2021522065A JP7141527B2 (ja) 2018-10-23 2019-09-26 減衰可変ダンパおよび衣類処理装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811238122.9 2018-10-23
CN201811238122.9A CN111088659B (zh) 2018-10-23 2018-10-23 变阻尼减震器和衣物处理设备

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WO2020082981A1 true WO2020082981A1 (zh) 2020-04-30

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CN (1) CN111088659B (ja)
WO (1) WO2020082981A1 (ja)

Citations (8)

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DE3016915A1 (de) * 1980-05-02 1981-11-05 Fritz Bauer + Söhne oHG, 8503 Altdorf Schwingungsfaehige abstuetzung fuer waschmaschinen
EP1219854A1 (de) * 2001-01-02 2002-07-03 Grass GmbH Dämpf- und Bremsvorrichtung für Möbelteile
CN1519417A (zh) * 2003-01-29 2004-08-11 Lg������ʽ���� 洗衣机的减振器
CN1730781A (zh) * 2004-08-06 2006-02-08 乐金电子(天津)电器有限公司 洗衣机的多重减震装置
CN101435477A (zh) * 2007-11-14 2009-05-20 黄潭城 阻尼结构
US20180045265A1 (en) * 2015-05-14 2018-02-15 Barnes Group Inc. Interference Arrangement for Spring
CN209307665U (zh) * 2018-10-19 2019-08-27 青岛海尔滚筒洗衣机有限公司 减震器和包括该减震器的衣物处理设备
CN209307664U (zh) * 2018-10-23 2019-08-27 青岛海尔滚筒洗衣机有限公司 变阻尼减震器和衣物处理设备

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DE29719193U1 (de) 1997-10-29 1999-02-25 Aeg Hausgeraete Gmbh Reibungsdämpfer für Wäschebehandlungsmaschinen
DE102005032499B4 (de) 2004-07-13 2009-10-22 Lg Electronics Inc. Dämpfer zur Vibrationsdämpfung und damit ausgerüstete Waschmaschine
CN104099752A (zh) * 2013-04-09 2014-10-15 苏州三星电子有限公司 一种阻尼力可变的洗衣机减震器
JP6563705B2 (ja) 2015-06-22 2019-08-21 オイレス工業株式会社 ダンパ
WO2017122992A1 (ko) 2016-01-11 2017-07-20 주식회사 썬 프레인 코 세탁기용 가변댐퍼 및 다단 일체형 마찰 댐퍼
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Publication number Priority date Publication date Assignee Title
DE3016915A1 (de) * 1980-05-02 1981-11-05 Fritz Bauer + Söhne oHG, 8503 Altdorf Schwingungsfaehige abstuetzung fuer waschmaschinen
EP1219854A1 (de) * 2001-01-02 2002-07-03 Grass GmbH Dämpf- und Bremsvorrichtung für Möbelteile
CN1519417A (zh) * 2003-01-29 2004-08-11 Lg������ʽ���� 洗衣机的减振器
CN1730781A (zh) * 2004-08-06 2006-02-08 乐金电子(天津)电器有限公司 洗衣机的多重减震装置
CN101435477A (zh) * 2007-11-14 2009-05-20 黄潭城 阻尼结构
US20180045265A1 (en) * 2015-05-14 2018-02-15 Barnes Group Inc. Interference Arrangement for Spring
CN209307665U (zh) * 2018-10-19 2019-08-27 青岛海尔滚筒洗衣机有限公司 减震器和包括该减震器的衣物处理设备
CN209307664U (zh) * 2018-10-23 2019-08-27 青岛海尔滚筒洗衣机有限公司 变阻尼减震器和衣物处理设备

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CN111088659B (zh) 2022-06-17
JP7141527B2 (ja) 2022-09-22
JP2022505651A (ja) 2022-01-14
CN111088659A (zh) 2020-05-01

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