WO2016045177A1 - 一种垫圈及洗衣机减速离合装置 - Google Patents

一种垫圈及洗衣机减速离合装置 Download PDF

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Publication number
WO2016045177A1
WO2016045177A1 PCT/CN2014/091150 CN2014091150W WO2016045177A1 WO 2016045177 A1 WO2016045177 A1 WO 2016045177A1 CN 2014091150 W CN2014091150 W CN 2014091150W WO 2016045177 A1 WO2016045177 A1 WO 2016045177A1
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WO
WIPO (PCT)
Prior art keywords
elastic
elastic portion
gasket
metal ring
ring body
Prior art date
Application number
PCT/CN2014/091150
Other languages
English (en)
French (fr)
Inventor
吕佩师
杨林
张刚金
今井俊次
刘跃滨
田云
Original Assignee
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 青岛海尔洗衣机有限公司 filed Critical 青岛海尔洗衣机有限公司
Priority to JP2017512952A priority Critical patent/JP6524509B2/ja
Priority to US15/514,677 priority patent/US20170248233A1/en
Publication of WO2016045177A1 publication Critical patent/WO2016045177A1/zh

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    • 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
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/18—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3268—Mounting of sealing rings
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3268—Mounting of sealing rings
    • F16J15/3276—Mounting of sealing rings with additional static sealing between the sealing, or its casing or support, and the surface on which it is mounted

Definitions

  • the invention relates to the technical field of washing machine sealing parts, in particular to a washer and a washing machine deceleration clutch device.
  • the dewatering shaft of the washing machine deceleration clutch device needs to be connected with the inner tub of the washing machine.
  • the washing machine decelerates the dewatering shaft and the washer structure of the clutch device.
  • This structure is simple, the gasket has no special structure, only one Stainless steel washers or a simple combination of stainless steel washers and rubber; the dewatering shaft of the deceleration clutch has a circular structure with a positioning boss that prevents the washer from sliding down.
  • the washer is easily peeled off during the manufacturing maintenance or transportation process, causing the washing machine to malfunction.
  • the inner tub is lowered due to the falling off of the gasket, so that the gap between the pulsator and the inner tub exceeds the set value, causing a problem of pinching and/or stuffing of the laundry during the washing process.
  • the dehydration shaft cross section is a combination of a polygon or a polygon and a circle, and a groove is formed on the dewatering shaft of the deceleration clutch device to form a card position.
  • the boss has a circular structure.
  • the shape of the washer is matched with the cross section of the dewatering shaft.
  • the above method has the following problems: First, the cross section of the dewatering shaft is polygonal or polygonal and circular, which makes the processing process of the dewatering shaft more complicated; secondly, the groove structure is provided on the dewatering shaft, which destroys the dehydration shaft. Integral, it is easy to cause stress concentration at the groove and cause the dewatering shaft to break, which greatly reduces the overall strength of the dewatering shaft. Finally, the shape design of the gasket coincides with the cross section of the dewatering shaft, and the processing of the gasket is more complicated and the tolerance is The requirements are also higher in order to match the gasket to the dewatering shaft.
  • the utility model provides a gasket which can be applied to a deceleration clutch device of a washing machine to solve the problem that the gasket is easy to fall off, and also effectively avoids the strength of the dewatering shaft of the deceleration clutch device due to structural design reasons. Weak problem.
  • the present invention adopts the following technical solutions:
  • a gasket comprising a metal ring body and/or a first elastic portion and a second elastic portion made of an elastic material, the first elastic portion being disposed on an inner side of the metal ring body, and the second elastic portion being disposed on the metal ring
  • the outer side of the body extends downwardly; the first elastic portion and the second elastic portion respectively have an interference fit with the shaft assembled therewith.
  • the first elastic portion is an elastic ring fixedly connected to the inner peripheral wall of the metal ring body, and the upper end of the first elastic portion is higher than the upper end of the metal ring body, and the portion of the first elastic portion is further connected with the metal ring body The upper end is fixedly connected.
  • the inner diameter of the first elastic portion gradually decreases from the lower end portion to the upper end portion.
  • the second elastic portion is an elastic ring fixedly connected to the outer peripheral wall of the metal ring body, the second elastic portion extends toward the inner side and/or the outer side of the metal ring body, and the second elastic portion is further connected with the metal The lower end of the ring body is fixedly connected.
  • the portion of the second elastic portion located below the lower end of the metal ring body extends inwardly to form a fitting portion, and the fitting portion is fitted with the shaft in an interference fit, and the inner diameter of the fitting portion gradually increases from the upper end portion to the lower end portion. Get small.
  • the portion of the second elastic portion located below the lower end of the eyelet body extends outward to form an adjustment portion, and the adjustment portion and the fitting portion have a gap therebetween.
  • the fitting portion includes a first inner curved portion, a first outer curved portion, and a first connecting portion that transitionably connects the first inner curved portion and the first outer curved portion, the first inner curved portion facing the outer side of the metal ring body bending;
  • the adjusting portion includes a second inner curved portion, a second outer curved portion, and a second connecting portion that transitionably connects the second inner curved portion and the second outer curved portion;
  • the first outer curved portion and the second inner curved portion are spaced apart to form a gap.
  • Another object of the present invention is to provide a deceleration clutch device for a washing machine to which the above-described gasket is applied, comprising a dewatering shaft connected to an inner tub of the washing machine, the dewatering shaft being provided with a boss for preventing the gasket from sliding down; the gasket is disposed at On the dewatering shaft, the first elastic portion has an interference fit with the dewatering shaft, and/or the second elastic portion has an interference fit with the boss.
  • the dewatering shaft has a circular cross section, and the outer diameter of the joint of the dewatering shaft and the boss is equal to the outer diameter of the dewatering shaft; the metal ring body of the washer assembled on the dewatering shaft, first The elastic portion and the second elastic portion have an annular shape.
  • the minimum inner diameter of the first elastic portion is smaller than the outer diameter of the dewatering shaft; the fitting portion of the second elastic portion is interference-fitted with the boss, and the minimum inner diameter of the fitting portion is smaller than the outer diameter of the boss.
  • the gasket of the present invention has a metal ring body and a first elastic portion and a second elastic portion three-layer structure made of an elastic material.
  • the metal ring body is matched with a shaft fitted thereto, the first elastic portion and the second elastic portion.
  • the portions are respectively interference-fitted with the shaft assembled therewith, which makes the gasket of the present invention more reliable to install and less likely to fall off.
  • the deceleration clutch device of the washing machine of the invention cancels the groove of the dewatering shaft mounting washer on the basis of the current deceleration clutch device of the washing machine, enhances the strength of the dewatering shaft of the washing machine reducer, and avoids the deformation of the dewatering shaft of the washing machine under the condition of high speed dewatering. This causes the washing machine to vibrate loudly.
  • the dewatering shaft of the deceleration clutch device of the present invention has a circular cross section, and the machining process is simpler.
  • the deceleration clutch device of the invention adopts the gasket of the invention, so that the washer is not easy to fall off during the manufacturing maintenance and transportation process, and the washing machine is prevented from falling out of the bottom of the inner tub and the clothing is caught due to the falling off of the washer. Quality problems such as foreign objects.
  • Figure 1 is a schematic perspective view of a conventional gasket 1
  • FIG. 2 is a schematic perspective view of a conventional gasket 2
  • Figure 3 is a plan view of the prior art washer 2
  • Figure 4 is an assembly view of the prior art washer 2 mounted on the deceleration clutch of the washing machine
  • Figure 5 is a plan view of the prior art washer 2 mounted on the deceleration clutch of the washing machine
  • Figure 6 is a schematic perspective view of the gasket of the present invention.
  • Figure 7 is a cross-sectional view of the gasket of the present invention.
  • Figure 8 is a schematic view showing the structure of the deceleration clutch device of the washing machine of the present invention.
  • a gasket of the present invention comprises a metal ring body 2 and/or a first elastic portion 1 and a second elastic portion 3 made of an elastic material, and the first elastic portion 1 Provided on the inner side of the metal ring body 2, the second elastic portion 3 is disposed outside the metal ring body 2 and extends downward; the metal ring body 2 is clearance-fitted with the shaft fitted thereto, the first elastic portion 1 and the second The elastic portions 3 are respectively interference-fitted with the shaft to which they are fitted.
  • the metal ring body 2 of the present invention is made of stainless steel or other alloy material, which ensures that the gasket has a certain strength as a whole, and the shape of the metal ring body 2 is designed to form the main overall structural shape of the gasket.
  • the metal ring body 2 of the present invention can be designed into a circular hole position, a square hole position, a polygonal hole position or other well-defined hole positions according to specific assembly requirements.
  • the metal ring body 2 of the present invention has a clearance fit with the shaft to be mounted, that is, the inner diameter of the metal ring body 2 is larger than the outer diameter of the shaft.
  • the gasket of the present invention is respectively provided with a first elastic portion 1 and a second elastic portion 3 on the inner side and the outer side of the metal ring body 2, and the first elastic portion 1 and the second elastic portion 3 are respectively made of an elastic material, specifically Ground, can be made of rubber material.
  • an elastic material specifically Ground
  • the first elastic portion 1 and the second elastic portion 3 are respectively interference-fitted with the shaft, such that the gasket of the present invention is first elastic portion 1 and second elastic after assembly.
  • the installation of the part 3 is more stable and not easy to fall off, ensuring the effectiveness of the gasket.
  • the gasket of the present invention can be more easily mounted to the dewatering shaft due to the clearance fit between the eyelet body 2 and the shaft to be mounted; and after the gasket is installed, the first elastic portion 1 and the second elastic portion are 3 respectively, the shaft is fitted with the shaft interference, so the gasket of the invention is not easy to take off, ensuring that the production or maintenance is not missed, and the quality problem of the pulsator higher than the bottom of the inner barrel, the clothes, and the foreign matter is avoided.
  • the first elastic portion 1 is an elastic ring fixedly connected to the inner peripheral wall of the metal ring body 2, and the upper end of the first elastic portion 1 is higher than the upper end of the metal ring body 2, A portion of the elastic portion 1 is also fixedly coupled to the upper end portion of the eyelet body 2.
  • the first elastic portion 1 of the present invention is a rubber ring, and the rubber ring is fixed on the inner wall of the metal ring body 1. Therefore, the gasket of the present invention adds a rubber ring on the inner side of the metal ring body 2, due to the rubber ring. It has a certain elasticity, so that a certain external force or other means can be applied to the mounting shaft when installing, and after the mounting, the first elastic portion 1 is in close contact with the mounting shaft due to the elastic force, thereby ensuring Reliability of the gasket installation.
  • the height of the first elastic portion 1 of the present invention is higher than that of the metal ring body 2, and is higher than the portion of the metal ring body 2 and the metal
  • the upper end portion of the ring body 2 is fixedly connected, which increases the contact area between the first elastic portion 1 and the metal ring body 2, and increases the stability of the first elastic portion 1 and the metal ring body 2 in fixed connection.
  • the height of the first elastic portion 1 of the present invention is higher than that of the metal ring body 2, and the inner diameter of the first elastic portion 1 gradually decreases from the lower end portion to the upper end portion.
  • the inner diameter of the first elastic portion 1 is in the shape of a bell mouth that is small and large, which is advantageous in that it is easy to mount at the time of mounting, and is not easily taken out after installation, thereby ensuring the stability of the fixed installation of the gasket of the present invention.
  • the second elastic portion 3 is an elastic ring fixedly connected to the outer peripheral wall of the metal ring body 2, and the second elastic portion 3 is directed to the inner side and/or the outer side of the metal ring body 2. Extendingly, a portion of the second elastic portion 3 is also fixedly coupled to the lower end portion of the eyelet body 2.
  • the second elastic portion 3 is also a rubber ring, and the rubber ring is fixed on the outer wall of the metal ring body 1. Therefore, the gasket of the present invention adds a layer of downwardly extending rubber on the outer side of the metal ring body 2. Because the rubber ring has a certain elasticity, a certain external force or other means can be applied to the mounting shaft when the mounting is applied. After the mounting, the second elastic portion 3 is attached to the mounting shaft by the elastic force. Close contact ensures the reliability of the gasket installation.
  • the second elastic portion 3 of the present invention extends to the lower portion of the metal ring body 2, and the portion is fixedly coupled to the lower end portion of the metal ring body 2, so that the contact area of the second elastic portion 3 with the metal ring body 2 can be increased.
  • the stability of the fixed connection of the second elastic portion 3 to the metal ring body 2 is increased.
  • the portion of the second elastic portion 3 located below the lower end of the metal ring body 2 extends inwardly to form the fitting portion 4, and the fitting portion 4 is fitted with the shaft and the fitting portion thereof.
  • the inner diameter of 4 gradually decreases from the upper end to the lower end.
  • the inner diameter of the fitting portion 4 of the present invention gradually decreases from the upper end portion to the lower end portion.
  • the inner diameter of the fitting portion 4 of the second elastic portion 3 is in the shape of a bell mouth that is small and large, which is advantageous in that it is easy to install and is not easily taken out after installation, further increasing the stability of the fixed installation of the gasket of the present invention. .
  • the portion of the second elastic portion 3 located below the lower end of the eyelet body 2 extends outward to form an adjustment portion 8, and the adjustment portion 8 and the fitting portion 4 have a gap 9.
  • the second elastic portion 3 of the present invention includes the fitting portion 4 and the adjusting portion 8, and the fitting portion 4 extends inwardly to achieve an interference fit with the mounting shaft to ensure the stability of the gasket mounting.
  • the adjusting portion 8 extends outwardly to form a gap 9 between the fitting portion 4, so that the fitting portion 4 can be expanded to the outer gap 9 because of a certain elasticity, so that the fitting portion 4 has a certain fine adjustment effect, so that the present invention
  • the washer mountable shaft has a larger radial length range.
  • the lower end of the second elastic portion 3 is recessed inward to form a ring.
  • the annular gap divides the second elastic portion 3 into the fitting portion 4 and the regulating portion 8.
  • the fitting portion 4 includes a first inner curved portion 41, a first outer curved portion 43, and a first connecting portion 42 that transitionably connects the first inner curved portion 41 and the first outer curved portion 43, the first inner curved portion 41 One end is connected to the lower end of the metal ring body 2, and the other end extends toward the inner side of the metal ring body 2 such that the first inner curved portion 41 is interference-fitted with the lower boss, and the inner diameter of the first inner curved portion 41 is from above.
  • the adjusting portion 8 includes a second inner curved portion 81, a second outer curved portion 83, and a second connecting portion 82 that connects the second inner curved portion 81 and the second outer curved portion 83, One end of the second outer curved portion 83 is connected to the side wall of the metal ring body 3, and the other end extends toward the outer side of the metal ring body 2; and a gap 9 is formed between the first outer curved portion 43 and the second inner curved portion 81.
  • the arrangement is mainly to form a gap 9 between the assembly portion 4 and the adjustment portion 8 to form a gap 9, which is more advantageous for dispersion force, avoids stress concentration, and improves the service life of the gasket.
  • a deceleration clutch device for a washing machine to which the above gasket is applied includes a dewatering shaft 5 connected to an inner tub of a washing machine; and the gasket is disposed at a joint of the dewatering shaft 5 and the inner tub.
  • a boss 10 for preventing the gasket from sliding down is provided on the dewatering shaft 5.
  • the first elastic portion 1 of the gasket is interference-fitted with the dewatering shaft 5
  • the second elastic portion 3 is interference-fitted with the boss 10
  • the inner ring radial length of the metal ring body 2 The radial length greater than the dewatering shaft 5 is less than the radial length of the boss 10.
  • the gasket of the present invention is more stable after being installed on the dewatering shaft of the deceleration clutch device, and is not easy to fall off, ensuring that production or maintenance is not performed. It was omitted, avoiding the quality problems such as the pulsator of the washing machine being higher than the bottom of the inner tub, the clothing, and the foreign matter.
  • the dewatering shaft 5 has a circular cross section, and the outer diameter of the joint of the dewatering shaft 5 and the boss 10 is equal to the outer diameter of the dewatering shaft 5;
  • the ferrule body 2 of the washer on the shaft 5 has a circular shape in which the first elastic portion 1 and the second elastic portion 3 are formed.
  • the dewatering shaft 5 of the present invention is manufactured in a simple cylindrical shape, and does not need to be manufactured into a polygonal structure or a combination of a polygonal shape and a circular shape, which greatly simplifies the manufacturing process of the dewatering shaft 5 and reduces the cost.
  • the metal ring body 2, the first elastic portion 1 and the second elastic portion 3 of the gasket are all formed in an annular shape, the structure is simpler, the manufacturing process is simplified, and the manufacturing cost is reduced. , has a good marketing prospects.
  • the outer diameter of the joint of the dewatering shaft 5 and the boss 10 of the present invention is equal to the outer diameter of the dewatering shaft 5, that is, the groove structure is no longer provided on the dewatering shaft 5 of the present invention, so that the groove structure is not formed. Concentration of stress, The structural strength of the dewatering shaft 5 is greatly increased.
  • the minimum inner diameter of the first elastic portion 1 is smaller than the outer diameter of the dewatering shaft 5; the fitting portion 4 of the second elastic portion 3 is interference-fitted with the boss 10, and assembled.
  • the minimum inner diameter of the portion 4 is smaller than the outer diameter of the boss 10.
  • the dewatering shaft 5 of the deceleration clutch device is designed in a cylindrical shape, the structure is simpler, the manufacturing process is more simplified, and the manufacturing cost is reduced.
  • the dewatering shaft 5 of the deceleration clutch device no longer processes the groove, which avoids the stress concentration at the groove and causes the dewatering shaft to break, thereby increasing the strength of the dewatering shaft 5; and the processing technology is also correspondingly simplify.
  • the gasket assembled by the deceleration clutch device of the present invention does not slip and rotate after being assembled on the dewatering shaft 5, and therefore, the gasket installation of the deceleration clutch device of the present invention is more stable and reliable.
  • the existing gasket is a simple annular metal ring, and the gasket is installed on the deceleration clutch device of the washing machine, and has no special structure for positioning, so the washing machine is in the process of manufacturing maintenance or transportation. In the middle, the washer is easy to fall off and the washing machine malfunctions. Moreover, the inner tub is lowered due to the falling off of the gasket, so that the gap between the pulsator and the inner tub exceeds the set value, causing a problem of pinching and/or stuffing of the laundry during the washing process.
  • FIG. 2 As shown in FIG. 2, FIG. 3, FIG. 4 and FIG. 5, another conventional gasket and a washing machine using the same have a deceleration clutch device, and the gasket comprises a metal ring body 2 and a fixed connection at a lower end portion of the metal ring body 2 Rubber ring 11.
  • the washing machine deceleration clutch device using the above washer including the dewatering shaft 5, the cross section of the dewatering shaft 5, and the opening shape of the metal ring body 2 of the gasket are known from FIG.
  • a boss 10 is provided at a lower portion of the dewatering shaft 5, and a circular groove 7 is provided at a joint of the dewatering shaft 5 and the boss 10.
  • the opening shape design of the metal ring body 2 of the gasket coincides with the cross section of the dewatering shaft 5, and the gasket is mounted on the dewatering shaft 5 and then rotated to a certain angle at the groove 7, so that the groove in the boss 7 and the dewatering shaft 5 Under the action of 7, the axial displacement of the gasket is restricted.
  • the above prior art has the following problems: First, the cross section of the dewatering shaft 5 is polygonal or polygonal and circular, so that the processing process of the dewatering shaft 5 is more complicated; secondly, the groove 7 is provided on the dewatering shaft 5, and the destruction is performed. The integrity of the dewatering shaft 5 is easy to cause stress concentration at the groove 7 to cause the dewatering shaft 5 to break, which greatly reduces the overall strength of the dewatering shaft 5; finally, the shape design of the gasket coincides with the cross section of the dewatering shaft 5, and the gasket The machining process is also more complex and the tolerances are higher, in order to match the gasket to the dewatering shaft.
  • a gasket of the embodiment includes a ring-shaped metal ring body 2, which is fixed in gold.
  • the inner side of the body 2 is made of a first elastic portion 1 made of a rubber material and a second elastic portion 3 made of a rubber material fixed to the outside of the metal ring body 2.
  • the first elastic portion 1 is disposed obliquely upward, and the inner diameter gradually decreases from the lower end portion to the upper end portion.
  • the second elastic portion 3 is disposed obliquely downward, and includes two parts, the fitting portion 4 and the adjusting portion 8.
  • the fitting portion 4 is a portion of the second elastic portion 3 extending toward the inner side of the metal ring body 2, and the adjusting portion 8 is the second elastic portion.
  • a portion of the third portion 3 is formed to extend toward the outer side of the metal ring body 2, and a certain gap 9 is formed between the fitting portion 4 and the regulating portion 8.
  • the deceleration clutch device of the present embodiment includes a dewatering shaft 5, and the inner coaxial center of the dewatering shaft 5 is provided with a pulsator shaft 6.
  • the dewatering shaft 5 is connected to the inner tub of the washing machine.
  • the gasket of the embodiment is mounted on the dewatering shaft 5 and is connected with the inner tub of the washing machine, and is mainly placed on the lower part of the inner tub of the washing machine to ensure a certain installation height of the inner tub of the washing machine, and realize the inner barrel of the washing machine.
  • the assembly relationship with the washing wheel A boss 10 is provided at a lower portion of the dewatering shaft 5, and an outer diameter of the boss 10 is larger than an outer diameter of the dewatering shaft 5, and the boss 10 mainly prevents the washer from sliding down.
  • the dewatering shaft 5 of the present embodiment has a circular cross section, and no groove is provided at the joint of the dewatering shaft 5 and the boss 10.
  • the dewatering shaft 5 of the deceleration clutch device is designed in a cylindrical shape, the structure is simpler, the manufacturing process is more simplified, and the manufacturing cost is reduced.
  • the dewatering shaft 5 of the deceleration clutch device no longer processes the groove 7, which avoids the stress concentration at the groove 7 and causes the dewatering shaft 5 to break, thereby increasing the strength of the dewatering shaft 5; and, also simplifying the processing. Process.
  • the gasket assembled by the deceleration clutch device does not slip and rotate after being assembled on the dewatering shaft 5, so that the gasket installation of the deceleration clutch device is more stable and reliable.

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

Abstract

一种垫圈，包括金属圈本体（2）和/或由弹性材料制成的第一弹性部（1）、第二弹性部（3），所述的第一弹性部（1）设置在金属圈本体（2）的内侧，第二弹性部（3）设置在金属圈本体（2）的外侧且向下延伸；所述的第一弹性部（1）和第二弹性部（3）分别与与其装配的轴过盈配合。所述垫圈，能够更容易的安装到脱水轴（5）上，而且垫圈安装好以后，不容易取下来，确保了生产或维修时不被遗漏，避免了洗衣机整机出现波轮高于内桶底部、夹衣物、进异物等质量问题。

Description

一种垫圈及洗衣机减速离合装置 技术领域
本发明涉及洗衣机密封零部件技术领域，具体地，涉及一种垫圈及洗衣机减速离合装置。
背景技术
目前洗衣机减速离合装置的脱水轴需要与洗衣机的内桶相连接，为了使得内桶稳定的固定在脱水轴上，并且确保内桶的安装高度确定，需要在洗衣机的脱水轴上与内桶的连接处安装垫圈。现有的垫圈的安装方法通常有如下两种：
一种是使用常用的不锈钢垫圈直接套装在减速离合装置的脱水轴上，如图1所示，洗衣机减速离合装置的脱水轴及垫圈结构，这种结构很简单，垫圈没有特别的结构，只是一个不锈钢的垫圈或者是不锈钢垫圈和橡胶的简单结合；减速离合装置的脱水轴截面为圆形结构，下面设有防止垫圈下滑的定位凸台。
但是上述方法中，洗衣机在制造维修或者运输过程中，垫圈容易脱落造成洗衣机故障。而且，由于垫圈脱落而造成内桶下降，使得波轮和内桶之间的缝隙超出设定值，导致洗涤过程中发生夹坏和/或塞入衣物的问题。
另外一种方法，如图2、图3、图4及图5所示，脱水轴截面呈多边形或多边形与圆形的组合，在减速离合装置的脱水轴上设计一个凹槽，形成一个卡位凸台，凹槽为圆形结构。垫圈的形状设计与脱水轴的截面吻合，垫片安装到脱水轴上后旋转一定的角度，这样脱水轴的卡位凸台就会挡住垫圈不会脱落了。
但是上述方法中存在如下的问题：首先，脱水轴的截面呈多边形或者多边形与圆形组合，这样使脱水轴的加工工艺更加的复杂；其次，脱水轴上设置凹槽结构，破坏了脱水轴的整体性，容易在凹槽处发生应力集中而造成脱水轴断裂，大大降低了脱水轴的整体强度；最后，垫圈的形状设计与脱水轴的截面吻合，垫圈的加工工艺也更加复杂，而且对公差的要求也更高，才能实现将垫圈与脱水轴相配合。
总之，现有的上述两种方法不能使得脱水轴具有最佳受力强度的同时保证垫圈的固 定稳定性。
发明内容
为了解决上述技术问题，本实用新型提供了一种垫圈，该垫圈可以应用到洗衣机减速离合装置上，解决垫圈容易脱落问题，同时也有效规避了减速离合装置脱水轴的强度因结构设计原因而变弱的问题。
具体地，本发明采用了如下的技术方案：
一种垫圈，包括金属圈本体和/或由弹性材料制成的第一弹性部、第二弹性部，所述的第一弹性部设置在金属圈本体的内侧，第二弹性部设置在金属圈本体的外侧且向下延伸；所述的第一弹性部和第二弹性部分别与与其装配的轴过盈配合。
进一步地，所述的第一弹性部为固定连接在金属圈本体内侧周壁上的弹性圈，第一弹性部的上端高于金属圈本体的上端，第一弹性部的部分还与金属圈本体的上端端部固定连接。
进一步地，所述的第一弹性部的内径从下端端部向上端端部逐渐收小。
进一步地，所述的第二弹性部为固定连接在金属圈本体的外侧周壁上的弹性圈，第二弹性部向金属圈本体的内侧和/或外侧延伸，第二弹性部的部分还与金属圈本体的下端端部固定连接。
进一步地，所述的第二弹性部位于金属圈本体的下端下方的部分向内延伸形成装配部，装配部与与其装配在轴过盈配合，装配部的内径从上端端部向下端端部逐渐收小。
进一步地，所述的第二弹性部位于金属圈本体的下端下方的部分向外延伸形成调节部，调节部与装配部之间具有间隙。
进一步地，所述的装配部包括第一内侧弯曲部、第一外侧弯曲部以及过渡连接第一内侧弯曲部和第一外侧弯曲部的第一连接部，第一内侧弯曲部朝向金属圈本体外侧弯曲；
所述的调节部包括第二内侧弯曲部、第二外侧弯曲部以及过渡连接第二内侧弯曲部和第二外侧弯曲部的第二连接部；
所述的第一外侧弯曲部与第二内侧弯曲部之间具有一定间距以形成间隙。
本发明的另一目的是提供一种应用上述所述垫圈的洗衣机减速离合装置，包括与洗衣机的内桶连接的脱水轴，脱水轴上设有用于防止垫圈下滑的凸台；所述的垫圈设置在 脱水轴上，所述的第一弹性部与脱水轴过盈配合，和/或第二弹性部与凸台过盈配合。
进一步地，所述的脱水轴的横截面为圆形，脱水轴与凸台的连接处的外径等于脱水轴的外径；所述的装配在脱水轴上的垫圈的金属圈本体、第一弹性部和第二弹性部为圆环状。
进一步地，所述的第一弹性部的最小内径小于脱水轴的外径；所述的第二弹性部的装配部与凸台过盈配合，装配部的最小内径小于凸台的外径。
本发明的垫圈具有金属圈本体以及由弹性材料制成的第一弹性部、第二弹性部三层结构，在使用时金属圈本体与与其装配的轴间隙配合，第一弹性部和第二弹性部分别与与其装配的轴过盈配合，这样可使得本发明的垫圈安装更加可靠，不易脱落。
本发明的洗衣机减速离合装置是在目前洗衣机减速离合装置的基础上取消了脱水轴安装垫圈的凹槽，增强了洗衣机减速器脱水轴的强度，避免洗衣机在高速脱水情况下脱水轴变形较大，导致洗衣机出现振动噪音大。而且，本发明的减速离合装置的脱水轴的横截面为圆形，加工工艺更加简单。
同时，本发明的在减速离合装置采用了本发明的垫圈，使得洗衣机在制造维修以及运输过程中，垫圈不容易脱落，避免了因垫圈脱落造成洗衣机整机出现波轮高于内桶底部、夹衣物、进异物等质量问题。
附图说明
图1现有垫圈一的立体结构示意图；
图2现有垫圈二的立体结构示意图；
图3现有垫圈二的俯视图；
图4现有垫圈二安装在洗衣机减速离合装置上的装配图；
图5现有垫圈二安装在洗衣机减速离合装置上的俯视图；
图6本发明垫圈的立体结构示意图；
图7本发明垫圈的剖视图；
图8本发明的洗衣机减速离合装置的结构示意图。
附图中的标号说明：1-第一弹性部 2-金属圈本体 3-第三弹性部 4-装配部 5-脱水轴 6-波轮轴 7-凹槽 8-调节部 9-间隙 10-凸台 41-第一内侧弯曲部 42-第一连接部 43-第一外侧弯曲部 81-第二内侧弯曲部 82-第二连接部 83-第二外侧弯曲部。
具体实施方式
下面结合附图对本发明的一种垫圈及洗衣机减速离合装置进行详细描述：
如图6及图7所示，本发明的一种垫圈，包括金属圈本体2和/或由弹性材料制成的第一弹性部1、第二弹性部3，所述的第一弹性部1设置在金属圈本体2的内侧，第二弹性部3设置在金属圈本体2的外侧且向下延伸；所述的金属圈本体2与与其装配的轴间隙配合，第一弹性部1和第二弹性部3分别与与其装配的轴过盈配合。
本发明的金属圈本体2采用不锈钢或者其它合金材料制成，这样可确保垫圈整体具有一定的强度，而且金属圈本体2的形状设计形成了垫圈的主要整体结构形状。具体地，本发明的金属圈本体2可根据具体的装配要求设计成圆形孔位、方形孔位、多边形孔位或者其它确定形状的孔位。为了便于本发明的垫圈的安装，本发明的金属圈本体2与所要安装的轴之间间隙配合，即金属圈本体2的内径大于轴的外径。
本发明的垫圈在金属圈本体2的内侧和外侧分别设置有第一弹性部1和第二弹性部3，所述的第一弹性部1和第二弹性部3分别采用弹性材料制成，具体地，可采用橡胶材料制成。这样，本发明的垫圈在与轴进行装配时，第一弹性部1、第二弹性部3分别与轴过盈配合，这样使得本发明的垫圈在装配后在第一弹性部1和第二弹性部3的作用下安装更加稳定，不易脱落，确保了垫圈的有效性。
因此，本发明的垫圈，由于金属圈本体2与所要安装的轴之间间隙配合，因此能够更容易的安装到脱水轴上；而且垫圈安装好以后，由于第一弹性部1、第二弹性部3分别与轴过盈配合，因此本发明的垫圈不容易取下来，确保了生产或维修时不被遗漏，避免了洗衣机整机出现波轮高于内桶底部、夹衣物、进异物等质量问题。
作为本发明的一种优选实施方式，所述的第一弹性部1为固定连接在金属圈本体2内侧周壁上的弹性圈，第一弹性部1的上端高于金属圈本体2的上端，第一弹性部1的部分还与金属圈本体2的上端端部固定连接。
优选地，本发明的第一弹性部1为一橡胶圈，橡胶圈固定在金属圈本体1的内壁上，因此，本发明的垫圈在金属圈本体2的内侧增设一层橡胶圈，由于橡胶圈具有一定的弹性，因此在安装时适用一定的外力或者其它方式可将本发明的垫圈装入安装轴上，装上后，第一弹性部1由于弹力的作用而与安装轴紧密接触，确保了垫圈安装的可靠性。本发明的第一弹性部1的高度高于金属圈本体2设置，且高于金属圈本体2的部分与金属 圈本体2的上端端部固定连接，这样可增大第一弹性部1与金属圈本体2的接触面积，增大了第一弹性部1与金属圈本体2固定连接的稳定性。
本发明的第一弹性部1的高度高于金属圈本体2设置，所述的第一弹性部1的内径从下端端部向上端端部逐渐收小。这样使得第一弹性部1的内径呈上小下大的喇叭口状，这样的好处时，在安装时便于安装，安装上以后不容易取出，确保了本发明的垫圈固定安装的稳定性。
作为本发明的一种优选实施方式，所述的第二弹性部3为固定连接在金属圈本体2的外侧周壁上的弹性圈，第二弹性部3向金属圈本体2的内侧和/或外侧延伸，第二弹性部3的部分还与金属圈本体2的下端端部固定连接。
优选地，所述的第二弹性部3也为一橡胶圈，橡胶圈固定在金属圈本体1的外壁上，因此，本发明的垫圈在金属圈本体2的外侧增设一层向下延伸的橡胶圈，由于橡胶圈具有一定的弹性，因此在安装时适用一定的外力或者其它方式可将本发明的垫圈装入安装轴上，装上后，第二弹性部3由于弹力的作用而与安装轴紧密接触，确保了垫圈安装的可靠性。本发明的第二弹性部3延伸至金属圈本体2的下部设置，且该部分与金属圈本体2的下端端部固定连接，这样可增大第二弹性部3与金属圈本体2的接触面积，增大了第二弹性部3与金属圈本体2固定连接的稳定性。
作为本发明的一种优选实施方式，所述的第二弹性部3位于金属圈本体2的下端下方的部分向内延伸形成装配部4，装配部4与与其装配在轴过盈配合，装配部4的内径从上端端部向下端端部逐渐收小。
本发明的装配部4的内径从上端端部向下端端部逐渐收小。这样使得第二弹性部3的装配部4的内径呈上小下大的喇叭口状，这样的好处是便于安装，安装上以后不容易取出，进一步增大了本发明的垫圈固定安装的稳定性。
作为本发明的一种优选实施方式，所述的第二弹性部3位于金属圈本体2的下端下方的部分向外延伸形成调节部8，调节部8与装配部4之间具有间隙9。
本发明的第二弹性部3包括装配部4和调节部8，装配部4向内侧延伸实现与安装轴之间的过盈配合，确保垫圈安装的稳定性。调节部8向外侧延伸与装配部4之间形成间隙9，这样，装配部4因为具有一定的弹性可外扩至外侧的间隙9，从而使得装配部4具有一定的微调作用，使得本发明的垫圈可安装的安装轴具有更大的径向长度范围。
作为本发明的一种优选实施方式，所述的第二弹性部3的下端中部向内凹陷形成环 形间隙，环形间隙将第二弹性部3分成装配部4和调节部8。所述的装配部4包括第一内侧弯曲部41、第一外侧弯曲部43以及过渡连接第一内侧弯曲部41和第一外侧弯曲部43的第一连接部42，第一内侧弯曲部41的一端连接金属圈本体2的下侧端部，另一端朝向金属圈本体2内侧延伸，这样使得第一内侧弯曲部41与下部的凸台过盈配合，而且第一内侧弯曲部41的内径从上到下逐渐的收小；所述的调节部8包括第二内侧弯曲部81、第二外侧弯曲部83以及过渡连接第二内侧弯曲部81和第二外侧弯曲部83的第二连接部82，第二外侧弯曲部83的一端连接金属圈本体3的侧壁，另一端朝向金属圈本体2的外侧延伸；所述的第一外侧弯曲部43与第二内侧弯曲部81之间具有间隙9。
这样设置主要是使得装配部4与调节部8之间平滑过渡连接形成间隙9，更加有利于分散受力，避免应力集中，提高了垫圈的使用寿命。
如图8所示，本发明的一种应用上述垫圈的洗衣机减速离合装置，包括脱水轴5，脱水轴5与洗衣机的内桶连接；所述的垫圈设置在脱水轴5上与内桶的连接处，脱水轴5上设有用于防止垫圈下滑的凸台10。
作为本发明的一种优选实施方式，所述垫圈的第一弹性部1与脱水轴5过盈配合，第二弹性部3与凸台10过盈配合，金属圈本体2的内圈径向长度大于脱水轴5的径向长度小于凸台10的径向长度。这样使得本发明的垫圈的金属圈本体2在凸台10的阻挡作用下而不会下滑，而第一弹性部1与脱水轴5之间的过盈配合，第二弹性部3与凸台10之间的过盈配合确保了垫圈安装在脱水轴5上不会发生转动，因此本发明的垫圈安装在减速离合装置的脱水轴上后更加的稳定，且不易脱落，确保了生产或维修时不被遗漏，避免了洗衣机整机出现波轮高于内桶底部、夹衣物、进异物等质量问题。
作为本发明的一种优选实施方式，所述的脱水轴5的横截面为圆形，脱水轴5与凸台10的连接处的外径等于脱水轴5的外径；所述的装配在脱水轴5上的垫圈的金属圈本体2、第一弹性部1和第二弹性部3为圆环状。
本发明的脱水轴5制造成简单的圆柱状，不需要制造成多边形结构或者多边形与圆形的组合结构，大大的简化了脱水轴5的制造工艺，降低了成本。而与之相适应的，所述的垫圈的金属圈本体2、第一弹性部1和第二弹性部3均制成圆环状，结构更加的简单，制造工艺得到了简化，降低了制造成本，具有良好的市场推广前景。
另外，本发明的脱水轴5与凸台10的连接处的外径等于脱水轴5的外径，即本发明的脱水轴5上不再设置凹槽结构，这样不会发生由于设置凹槽结构带来的应力集中， 大大的增大了脱水轴5的结构强度。
作为本发明的一种优选实施方式，所述的第一弹性部1的最小内径小于脱水轴5的外径；所述的第二弹性部3的装配部4与凸台10过盈配合，装配部4的最小内径小于凸台10的外径。
本发明的减速离合装置具有如下的优点：
首先，减速离合装置的脱水轴5设计成圆柱状，结构更加的简单，制造工艺更加的简化，降低了制造成本。
其次，减速离合装置的脱水轴5不再加工出凹槽，可避免凹槽处的应力集中而造成脱水轴断裂的现象，增大了脱水轴5的强度；而且，加工工艺也得到了相应的简化。
最后，本发明的减速离合装置装配的垫圈，装配在脱水轴5上后不会发生下滑和转动现象，因此，本发明的减速离合装置的垫圈安装更加的稳定可靠。
实施例一
如图1所示，现有的一种垫圈，为一简单的圆环状金属环，将该垫圈安装在洗衣机的减速离合装置上，没有特别的结构进行定位，因此洗衣机在制造维修或者运输过程中，垫圈容易脱落造成洗衣机故障。而且，由于垫圈脱落而造成内桶下降，使得波轮和内桶之间的缝隙超出设定值，导致洗涤过程中发生夹坏和/或塞入衣物的问题。
如图2、图3、图4及图5所示，另一种现有的垫圈及采用该垫圈的洗衣机减速离合装置，垫圈包括金属圈本体2和固定连接在金属圈本体2下端端部的橡胶圈11。如图4所示，采用上述垫圈的洗衣机减速离合装置，包括脱水轴5，脱水轴5的横截面以及垫圈的金属圈本体2的开孔形状由图5可知，均为一种由圆形和正方形组合的形状，脱水轴5的下部设置凸台10，脱水轴5与凸台10的连接处设置圆环形的凹槽7。垫圈的的金属圈本体2的开孔形状设计与脱水轴5的截面吻合，垫圈安装到脱水轴5上后到达凹槽7处旋转一定的角度，这样在凸台7和脱水轴5的凹槽7的作用下就限制住垫圈发生轴向位移。
但是上述现有技术中存在如下的问题：首先，脱水轴5截面呈多边形或者多边形与圆形组合，这样使脱水轴5的加工工艺更加的复杂；其次，脱水轴5上设置凹槽7，破坏了脱水轴5的整体性，容易在凹槽7处发生应力集中而造成脱水轴5断裂，大大降低了脱水轴5的整体强度；最后，垫圈的形状设计与脱水轴5的截面吻合，垫圈的加工工艺也更加复杂，而且对公差的要求也更高，才能实现将垫圈与脱水轴相配合。
如图6和图7所示，本实施例的一种垫圈，包括圆环形的金属圈本体2，固定在金 属圈本体2内侧由橡胶材料制成的第一弹性部1和固定在金属圈本体2外侧由橡胶材料制成的第二弹性部3。
第一弹性部1倾斜向上设置，且内径从下端端部向上端端部逐渐收小。
第二弹性部3倾斜向下设置，包括装配部4和调节部8两部分，装配部4是第二弹性部3的部分向着金属圈本体2的内侧延伸形成，调节部8是第二弹性部3的部分向着金属圈本体2的外侧延伸形成，装配部4与调节部8之间具有一定的间隙9。
如图8所示，本实施例的减速离合装置，包括脱水轴5，脱水轴5的内部同轴心设置有波轮轴6。脱水轴5与洗衣机的内桶相连接，本实施例的垫圈安装在脱水轴5上且与洗衣机内桶相连接处，主要是垫在洗衣机内桶的下部，确保洗衣机内桶具有一定的安装高度，实现洗衣机内桶与洗衣机波轮之间的装配关系。脱水轴5的下部设置凸台10，凸台10的外径大于脱水轴5的外径，凸台10主要是防止垫圈下滑。
本实施例的脱水轴5的横截面为圆形，脱水轴5与凸台10的连接处未设置凹槽。
本实施例的减速离合装置具有如下的优点：
首先，减速离合装置的脱水轴5设计成圆柱状，结构更加的简单，制造工艺更加的简化，降低了制造成本。
其次，减速离合装置的脱水轴5不再加工出凹槽7，可避免凹槽7处的应力集中而造成脱水轴5断裂的现象，增大了脱水轴5的强度；而且，也简化了加工工艺。
最后，减速离合装置装配的垫圈，装配在脱水轴5上后不会发生下滑和转动现象，因此，减速离合装置的垫圈安装更加的稳定可靠。
以上所述仅是本发明的较佳实施例而已，并非对本发明作任何形式上的限制，虽然本发明已以较佳实施例揭露如上，然而并非用以限定本发明，任何熟悉本专利的技术人员在不脱离本发明技术方案范围内，当可利用上述提示的技术内容作出些许更动或修饰为等同变化的等效实施例，但凡是未脱离本发明技术方案的内容，依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本发明方案的范围内。

Claims (10)

  1. 一种垫圈，其特征在于，包括金属圈本体(2)和/或由弹性材料制成的第一弹性部(1)、第二弹性部(3)，所述的第一弹性部(1)设置在金属圈本体(2)的内侧，第二弹性部(3)设置在金属圈本体(2)的外侧且向下延伸；所述的第一弹性部(1)和第二弹性部(3)分别与与其装配的轴过盈配合。
  2. 根据权利要求1所述的一种垫圈，其特征在于，所述的第一弹性部(1)为固定连接在金属圈本体(2)内侧周壁上的弹性圈，第一弹性部(1)的上端高于金属圈本体(2)的上端，第一弹性部(1)的部分还与金属圈本体(2)的上端端部固定连接。
  3. 根据权利要求1或2所述的一种垫圈，其特征在于，所述的第一弹性部(1)的内径从下端端部向上端端部逐渐收小。
  4. 根据权利要求1所述的一种垫圈，其特征在于，所述的第二弹性部(3)为固定连接在金属圈本体(2)的外侧周壁上的弹性圈，第二弹性部(3)向金属圈本体(2)的内侧和/或外侧延伸，第二弹性部(3)的部分还与金属圈本体(2)的下端端部固定连接。
  5. 根据权利要求1、2或4所述的一种垫圈，其特征在于，所述的第二弹性部(3)位于金属圈本体(2)的下端下方的部分向内延伸形成装配部(4)，装配部(4)与与其装配在轴过盈配合，装配部(4)的内径从上端端部向下端端部逐渐收小。
  6. 根据权利要求5所述的一种垫圈，其特征在于，所述的第二弹性部(3)位于金属圈本体(2)的下端下方的部分向外延伸形成调节部(8)，调节部(8)与装配部(4)之间具有间隙(9)。
  7. 根据权利要6所述的一种垫圈，其特征在于，所述的装配部(4)包括第一内侧弯曲部(41)、第一外侧弯曲部(43)以及过渡连接第一内侧弯曲部(41)和第一外侧弯曲部(43)的第一连接部(42)，第一内侧弯曲部(41)朝向金属圈本体(2)外侧弯曲；
    所述的调节部(8)包括第二内侧弯曲部(81)、第二外侧弯曲部(83)以及过渡连接第二内侧弯曲部(81)和第二外侧弯曲部(83)的第二连接部(82)；
    所述的第一外侧弯曲部(43)与第二内侧弯曲部(81)之间具有一定间距以形成间隙(9)。
  8. 一种应用权利要求1-7任意一项所述垫圈的洗衣机减速离合装置，包括与洗衣 机的内桶连接的脱水轴(5)，脱水轴(5)上设有用于防止垫圈下滑的凸台(10)；其特征在于，所述的垫圈设置在脱水轴(5)上，所述的第一弹性部(1)与脱水轴(5)过盈配合，和/或第二弹性部(3)与凸台(10)过盈配合。
  9. 根据权利要求7所述的洗衣机减速离合装置，其特征在于，所述的脱水轴(5)的横截面为圆形，脱水轴(5)与凸台(10)的连接处的外径等于脱水轴(5)的外径；所述的装配在脱水轴(5)上的垫圈的金属圈本体(2)、第一弹性部(1)和第二弹性部(3)为圆环状。
  10. 根据权利要求9所述的洗衣机减速离合装置，其特征在于，所述的第一弹性部(1)的最小内径小于脱水轴(5)的外径；所述的第二弹性部(3)的装配部(4)与凸台(10)过盈配合，装配部(4)的最小内径小于凸台(10)的外径。
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