WO2016176985A1 - 一种洗衣机内桶轴密封安装结构 - Google Patents

一种洗衣机内桶轴密封安装结构 Download PDF

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Publication number
WO2016176985A1
WO2016176985A1 PCT/CN2015/095300 CN2015095300W WO2016176985A1 WO 2016176985 A1 WO2016176985 A1 WO 2016176985A1 CN 2015095300 W CN2015095300 W CN 2015095300W WO 2016176985 A1 WO2016176985 A1 WO 2016176985A1
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WO
WIPO (PCT)
Prior art keywords
inner barrel
flange
annular
washing machine
gasket
Prior art date
Application number
PCT/CN2015/095300
Other languages
English (en)
French (fr)
Inventor
吕佩师
杨林
田云
张刚金
今井俊次
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 JP2017557377A priority Critical patent/JP6678962B2/ja
Priority to EP15891228.7A priority patent/EP3293301A4/en
Priority to US15/571,586 priority patent/US20180156335A1/en
Priority to KR1020177033962A priority patent/KR20180002709A/ko
Publication of WO2016176985A1 publication Critical patent/WO2016176985A1/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
    • D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/30—Driving arrangements 
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door
    • 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
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
    • F16J15/12—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
    • F16J15/121—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering with metal reinforcement
    • F16J15/122—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering with metal reinforcement generally parallel to the surfaces
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00—Flanged joints
    • F16L23/16—Flanged joints characterised by the sealing means
    • F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
    • 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
    • D06F37/206—Mounting of motor
    • 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

Definitions

  • the invention relates to the field of washing machines, in particular to a barrel bottom sealing structure of a washing machine, in particular to a barrel shaft sealing installation structure of a washing machine.
  • the inner barrel and the side wall of the outer barrel need to be filled with water, so the inner barrel structure does not need to be sealed, especially the inner bottom of the barrel, for quick drainage, between the inner barrel bottom and the inner barrel flange It also has a gap, and even if the strength of the inner tub bottom is ensured, the water outlet hole is increased.
  • the water between the inner and outer barrels does not participate in the washing, and the water actually involved in the washing is only the part in the inner tub, which causes a large waste of water resources, and excessively between the inner and outer barrels. Water also reduces the concentration of detergent/washing powder in the wash liquor.
  • the existing shell-and-bottle automatic washing machine not only solves the problem of water waste, but also solves the pollution problem of clothes.
  • the sealing structure of the existing shell-and-tuber-automatic pulsator washing machine is that the shell barrel of the washing machine and the driving sleeve shaft are sealed by a spiral corrugated flexible rubber sealing water sleeve to achieve sealing, thereby satisfying the inertia lifting and shock absorbing.
  • the purpose of sealing the shell barrel and the driving sleeve shaft is as follows: application number: 200710137234.0 "spiral corrugated flexible rubber sealing water jacket".
  • the invention provides a spiral corrugated flexible rubber water-sealing cover special for sealing water for a shell-and-tuber-automatic pulsator washing machine, comprising an integrated bowl-shaped curtain thin film composed of an outer ring segment, a spiral corrugated segment and an inner sleeve segment.
  • the spiral corrugated section is a convex water wave thread which is rotated and rotated from the inside to the outside.
  • the spiral corrugation of the spiral corrugated flexible rubber sealing sleeve When applied, the spiral corrugation of the spiral corrugated flexible rubber sealing sleeve can be flexibly stretched in three dimensions, adapting to the characteristics of the inertial body lifting and twisting movement, and maximally blocking the transmission of the inertial body vibration to the shell barrel and the base; When a fully automatic pulsator washing machine is drained, the water in the corrugated groove will automatically flow out along the spiral corrugation without being retained.
  • the disadvantage of the solution proposed by the invention is that when the washing machine is in the centrifugal dewatering working chamber, due to the two different rigid bodies connected by the spiral corrugated flexible rubber sealing sleeve, it is subjected to severe radial force, resulting in spiral corrugation.
  • the flexible rubber sealing sleeve has the disadvantages of skewing, insufficient rigidity and poor reliability.
  • the present invention has been made in view of this.
  • the object of the present invention is to overcome the deficiencies of the prior art, and to provide a barrel shaft sealing installation structure in a washing machine, which can satisfy the gasket and the sealing function, and also prevent the looseness and shaking between the two rigid parts when the washing machine is dehydrated.
  • the phenomenon of water leakage is to overcome the deficiencies of the prior art, and to provide a barrel shaft sealing installation structure in a washing machine, which can satisfy the gasket and the sealing function, and also prevent the looseness and shaking between the two rigid parts when the washing machine is dehydrated. The phenomenon of water leakage.
  • a barrel shaft sealing installation structure of a washing machine comprising an inner barrel flange and an inner barrel shaft disposed at the bottom of the inner barrel, the upper end of the inner barrel shaft is a flange mounting structure, the inner barrel flange and the inner barrel shaft Flange seal connection, a composite sealing gasket is provided between the inner barrel flange and the inner barrel shaft flange, including a metal skeleton and a rubber gasket, and the two are vulcanized and integrated into one structure.
  • the composite sealing gasket is a flat annular structure with a central hole in the middle, and the upper surface and/or the lower surface of the composite sealing gasket is provided with a first annular rib along the outer ring of the central hole.
  • the composite sealing gasket is circumferentially distributed with a plurality of bolt perforations, and the upper surface and/or the lower surface of the composite sealing gasket are respectively provided with a second annular rib on the outer circumference of each bolt perforation, preferably, two adjacent A segmented rib is connected between the second annular ribs. More preferably, the plurality of segment ribs are located on the same circumferential trajectory, and are coincident with the first annular rib.
  • a positioning structure is arranged between the composite sealing gasket and the inner barrel shaft flange.
  • the positioning structure is a positioning column protruding from the surface of the composite sealing gasket, and the inner barrel shaft flange is matched with the positioning column. Positioning hole.
  • the metal skeleton and the rubber gasket are both annular structures, and the two cores are vulcanized and bonded together in the radial direction.
  • the rubber gasket is disposed on the inner ring of the metal skeleton to form a lining structure of the metal skeleton, and the two are combined to form a flat annular composite sealing gasket.
  • the inner circumference of the metal skeleton is a joint portion that is vulcanized and bonded to the rubber gasket, and the joint portion is sequentially connected by a plurality of curved lines.
  • the rubber gasket comprises an annular rubber body, the outer circumference is vulcanized and bonded to the metal skeleton, the inner circumference is a central hole, and the upper surface and/or the lower surface of the annular rubber body is provided with a first annular rib along the outer circumference of the central hole.
  • a plurality of bolt perforations are circumferentially distributed on the outside of the first annular rib, and the upper surface and/or the lower surface of the annular rubber body are respectively provided with second annular ribs on the outer circumference of each bolt perforation.
  • a segmented rib is connected between two adjacent second annular ribs.
  • the plurality of segmented ribs are located on the same circumferential trajectory, and are coincident with the first annular rib.
  • the upper and lower surfaces of the annular rubber body and the upper and lower surfaces of the metal skeleton are respectively at the same horizontal plane, and the vulcanized bonding portion smoothly transitions, and the first annular rib and the second annular rib protrude from the surface of the composite sealing gasket
  • the heights of the two protrusions are the same.
  • the height of the upper and lower surfaces of the metal skeleton and the rubber gasket ensure that the metal skeleton and the rubber gasket can be in good contact, ensuring that the metal skeleton can fully resist the effects of radial force and axial force.
  • the inner diameter of the composite sealing washer bolt perforation is The second annular rib is compressed and becomes smaller, and the rubber lining and the bolt play a certain sealing function.
  • the annular rubber body protrudes from the lower surface and is provided with at least one positioning post, which is located at two bolt perforations, and the inner barrel shaft flange is provided with a positioning hole matched with the positioning post.
  • the bolt perforation and the positioning post partially protrude from the outer circumference of the annular rubber body to form an arc-shaped protrusion, and the inner circumference of the metal skeleton is provided with a plurality of arcuate gaps matching the outer circumferential arc-shaped protrusion of the annular rubber body.
  • the structure not only increases the contact area between the metal skeleton and the rubber gasket, but also increases the bonding strength between the metal skeleton and the rubber gasket, and further increases the relative bonding strength between the metal skeleton and the rubber gasket.
  • the composite sealing gasket can withstand strong radial and axial forces, while ensuring the safety of the connection between the two and prolonging the service life of the composite sealing gasket.
  • the height of the positioning post is 3 to 12 mm.
  • the fully automatic washing machine of the present invention comprises an outer tub and an inner tub disposed in the outer tub.
  • the upper portion of the inner tub is provided with a water outlet hole, and the lower portion of the water outlet hole of the inner tub is a water chamber structure sealed by the peripheral wall and the bottom wall.
  • the washing machine only has a water outlet hole in the upper part of the inner tub and a non-porous seal in the lower part, so that the washing water does not need to enter the area between the inner barrel and the outer barrel, and only needs to inject a suitable amount of water into the inner barrel, thereby achieving the purpose of greatly saving washing water, saving
  • the water rate has reached 30% to 40%; at the same time, the amount of detergent, auxiliary agent and other additives is reduced in each washing, which saves the washing cost; in addition, the area between the inner barrel and the outer barrel is no longer involved in washing, the inner barrel
  • the dirt trapped in the area between the outer tub and the bacteria that grows will not come into contact with the clothes in the inner tub, thus effectively avoiding the cross infection of the bacteria, making the use of the washing machine more sanitary, environmentally friendly and safe;
  • the high-speed rotation of the inner barrel drives the upward flow of water to drain from the water outlet hole, and the floating debris in the water does not remain on the clothes, and is completely discharged, and the washing is cleaner.
  • the composite sealing gasket of the present invention is installed between the inner barrel shaft flange and the inner barrel flange, and is connected with the inner barrel shaft, and is vulcanized and combined with a metal skeleton and a rubber material to overcome the difference between the inner barrel shaft flange and the inner barrel flange.
  • the radial and axial forces of the rigid connection generated by the dehydration operation prevent problems such as looseness, sloshing and water seepage and water seepage of the inner barrel shaft.
  • the composite sealing gasket of the present invention is provided with a positioning structure capable of overcoming the relative movement of the inner barrel shaft flange, the contact area between the composite sealing gasket and the inner barrel flange, and is relatively easy to cause relative movement. Snail The difficulty of fixing the adjustment process.
  • Figure 1 Schematic diagram of the structure of the composite sealing gasket of the present invention
  • Figure 2 The composite sealing gasket of the present invention is a front view
  • Figure 3 is a schematic view showing the structure of the barrel shaft seal of the washing machine of the present invention.
  • Figure 4 is a partial schematic view showing a barrel shaft sealing structure of a washing machine of the present invention.
  • Figure 5 Assembly diagram of the composite sealing gasket of the present invention
  • Figure 6 is a schematic view of a segmented rib on a composite sealing gasket of the present invention.
  • Figure 7 is a schematic view showing the assembly of the barrel shaft sealing structure of the washing machine of the present invention.
  • the reference numerals in the drawings indicate: 1. composite sealing gasket, 2, metal skeleton, 3, rubber gasket, 4, first annular rib, 5, curved inner tooth, 6, bolt perforation, 7, second annular rib 8, positioning structure, 9, center hole, 10, inner barrel shaft flange, 11, inner barrel flange, 12, bolts, 13, inner barrel shaft, 14, non-circular center hole, 15, segmented ribs, 16, Curved protrusion, 17, curved gap, 18, positioning hole.
  • the inner drum shaft sealing installation structure of the washing machine of the present invention comprises an inner barrel flange 11 and an inner barrel shaft 13 disposed at the bottom of the inner barrel, and the upper end of the inner barrel shaft 13 is a flange mounting structure, and the inner barrel flange 11 is sealingly connected with the inner barrel shaft flange 10, and a composite sealing gasket 1 is disposed between the inner barrel flange 11 and the inner barrel shaft flange 10, and includes a metal skeleton 2 and a rubber gasket 3, which are vulcanized and integrated into a unitary structure.
  • the bottom of the inner tub of the washing machine of the present invention is sealed, that is, the inner tub flange 11 is sealingly connected with the inner tub bottom, and the upper end of the inner tub shaft 13 is a flange mounting structure, and the inner tub flange 11 and the inner tub shaft flange 10 are also Sealed connection, the inner barrel is a water-filled structure.
  • the composite sealing gasket 1 of the present embodiment is a flat annular structure with a central hole 9 in the middle, and the upper surface and/or the lower surface of the composite sealing gasket 1 is provided along the outer ring of the central hole 9 .
  • the composite sealing gasket 1 of the present embodiment has a plurality of bolt perforations 6 distributed along the circumference, and the upper surface and/or the lower surface of the composite sealing gasket 1 are respectively provided with a second outer circumference of each bolt perforation 6 .
  • Annular ribs 7, preferably, two adjacent second annular ribs 7 are connected with segmented ribs 15, more preferably, a plurality of segmented ribs 15 are located on the same circumferential trajectory, and the first annular ribs 4 with the same center.
  • the composite sealing gasket 1 of the present embodiment is provided with a positioning structure 8 protruding from the surface.
  • the positioning structure 8 is a positioning post, and the inner barrel shaft flange 10 is disposed and positioned.
  • the column matches the positioning hole 18.
  • the annular rubber body of the embodiment is provided with at least one positioning post on the lower surface, and is located on the two bolt holes 6 , and the inner barrel shaft flange 10 is provided with a positioning hole 18 matching the positioning post.
  • the composite sealing gasket positioning structure of the present embodiment is in addition to a manner of positioning the column, and/or a manner in which the non-circular center hole 14 is engaged with the inner barrel shaft 13.
  • the metal skeleton 2 and the rubber gasket 3 described in this embodiment are both annular structures, and the two are vulcanized and bonded from the inside to the outside.
  • the rubber gasket 3 is provided on the inner ring of the metal skeleton 2, and constitutes a lining structure of the metal skeleton 2, and the two are combined to form a flat annular composite sealing gasket 1.
  • the inner circumference of the metal skeleton 2 is a joint portion that is vulcanized and bonded to the rubber gasket 3, and the joint portion is sequentially connected by a plurality of curved lines.
  • the rubber gasket 3 of the present embodiment includes an annular rubber body, and the outer periphery is vulcanized and bonded to the metal skeleton 2, and the inner circumference is a center hole 9, and the upper surface and/or the lower surface of the annular rubber body.
  • a first annular bead 4 is disposed along the outer ring of the central hole 9, and a plurality of bolt perforations 6 are circumferentially distributed outside the first annular bead 4, and the upper surface and/or the lower surface of the annular rubber body is perforated in each bolt 6
  • the outer circumferences are respectively provided with second annular ribs 7.
  • a segmented rib 15 is connected between the two adjacent second annular ribs 7.
  • the plurality of segmented ribs are located on the same circumferential trajectory, and are coincident with the first annular rib 4.
  • the upper and lower surfaces of the annular rubber body and the upper and lower surfaces of the metal skeleton 2 are respectively in the same horizontal plane, and the vulcanized bonding portion is smoothly transitioned, and the first annular rib 4 and the second annular convex are respectively formed.
  • the ribs 7 protrude from the surface of the composite sealing gasket 1 and the heights of the projections are the same.
  • the height of the protrusions of the two embodiments is relatively short, for example, 0.8 cm, so that the composite sealing gasket 1 can better exert the sealing function, and the inner barrel flange 11 and the inner barrel shaft flange 10 are prevented from being rigidly contacted. There are still gaps.
  • the bolt perforation 6 and the positioning post 8 of the embodiment partially protrude from the outer circumference of the annular rubber body to form an arc-shaped protrusion 16 , and the inner circumference of the metal frame 2 is provided with a plurality of annular rubber bodies.
  • the arcuate slit 17 is matched by the peripheral arcuate projection 16.
  • the contact area between the metal skeleton 2 and the rubber gasket 3 is further increased, and the bonding strength between the two is improved.
  • the height of the positioning structure 8 described in this embodiment is 6-10 mm.
  • the inner drum shaft 13 is first passed through the outer tub bottom and sealed between the outer tub bottom, and the reducer and the motor are installed at the bottom of the outer tub. Then, the composite sealing gasket 1 is positioned on the inner barrel shaft flange 10, and the inner barrel flange 11 fixed to the inner barrel bottom is placed on the composite sealing gasket 1, and finally the bolt 12 is fixed. During the installation, the composite sealing gasket 1 is positioned on the inner barrel shaft flange 10 by the positioning post 8, and the three are relatively fixed by the bolt 12 sequentially passing through the inner barrel flange 11, the composite sealing gasket 1 and the inner barrel shaft flange 10.
  • the inner barrel shaft flange 10 and the composite sealing washer 1 are relatively fixed, and the inner barrel shaft flange 10 bolt hole and the composite seal
  • the corresponding bolt holes 6 of the washer 2 are in one-to-one correspondence and no relative movement occurs, and then the position corresponding to the bolt hole of the inner barrel flange 11 and the composite sealing washer bolt hole 6 is adjusted, and the bolt 12 is assembled after the adjustment.
  • the function of the composite sealing gasket positioning structure 8 not only fixes the relative position of the composite sealing gasket 1 and the inner barrel shaft flange 10, but also reduces the relative contact area of the composite sealing gasket 1 and the inner barrel shaft flange 10, thereby reducing both of them. Relatively moving wear, thereby reducing the service life of the composite sealing gasket 1.
  • the motor drives the inner drum shaft 13 to rotate, thereby driving the inner tub to rotate, so as to prevent the inner tub water from seeping into the outer tub from the inner tub shaft 13, and simultaneously receiving the radial force and the axial force of the inner tub shaft flange 10 and the inner tub flange 11 And the problem of looseness, sloshing and water seepage between the inner barrel shaft flange 10 and the inner barrel flange 11 is prevented, and the composite sealing gasket 1 of the present invention can effectively solve the above problems.

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

Abstract

一种洗衣机内桶轴密封安装结构，包括设于内桶底部的内桶法兰（11）和内桶轴（13），内桶轴（13）上端部为法兰结构，内桶法兰（11）与内桶轴法兰（10）连接，内桶法兰（11）和内桶轴法兰（10）之间设有复合密封垫圈（1），包括金属骨架（2）和橡胶垫圈（3），两者硫化结合为一体结构。该方案中复合密封垫圈（1）为一环形扁体结构，设有螺栓穿孔（6），内齿（5），定位结构（8）和环形凸筋（4），该方案能够满足垫片和密封功能，并且能够承载较大的径向力和轴向力，防止内桶轴法兰（10）和内桶法兰（11）之间出现松动、晃动和渗水等现象。该方案具有结构简单、密封效果好的特点。

Description

一种洗衣机内桶轴密封安装结构 技术领域
本发明涉及洗衣机领域，具体是洗衣机内桶底密封结构，尤其是一种洗衣机内桶轴密封安装结构。
背景技术
现有的波轮式洗衣机，洗衣时，内桶与外桶的侧壁之间都需充满水，因此内桶结构并不需要密封，尤其是内桶底，为了快速排水，内桶底与内桶法兰之间还具有空隙，甚至在保证内桶底强度的基础上，会增加出水孔。
但是该结构的波轮洗衣机，内外桶之间的这部分水不参与洗涤，真正参与洗涤的水仅是内桶中的那部分，这使得水资源浪费较大，另外，内外桶之间过多的水也会降低洗涤液中洗涤剂/洗衣粉的浓度。现有的壳桶合一全自动波轮洗衣机既解决了水资源浪费问题，同时也解决了衣服的污染问题。现有的壳桶合一全自动波轮洗衣机的封水结构是洗衣机的壳桶与驱动套轴通过螺旋波纹柔性橡胶封水套密封连接实现封水，达到了既满足惯性体升降、避震又能将壳桶与驱动套轴密封连接起来的目的，如申请号：200710137234.0“螺旋波纹柔性橡胶封水套”。该发明提供一种针对壳桶合一全自动波轮洗衣机对封水特殊要求的螺旋波纹柔性橡胶封水套包括由外圈段、螺旋波纹段、内套段构成的一体化碗形加帘薄壁橡胶制品，所述的螺旋波纹段为自内而外旋转展开的凸起的水波状螺纹。应用时，由于螺旋波纹柔性橡胶封水套的螺旋波纹可沿三维方向自如伸缩，适应惯性体升降扭曲运动的特性，最大限度地阻隔了惯性体的振动向壳桶和底座的传递；壳桶合一全自动波轮洗衣机在排水时，波纹沟中的水会沿着螺旋波纹自动流出而不滞留。
但是该发明所提出的方案的不足之处是，当洗衣机在离心脱水工作室，由于螺旋波纹柔性橡胶封水套连接的两个不同的刚性体，因此要承受剧烈的径向力，导致螺旋波纹柔性橡胶封水套发生歪斜，刚性不够，可靠性不好等缺点。
鉴于此提出本发明。
发明内容
本发明的目的为克服现有技术的不足，提供一种洗衣机内桶轴密封安装结构，能够满足垫片和密封功能的同时，还满足洗衣机脱水时防止两个刚性零件之间出现松动、晃动和 漏水的现象。
为了实现该目的，本发明采用如下技术方案：一种洗衣机内桶轴密封安装结构，包括设于内桶底部的内桶法兰和内桶轴，内桶轴上端部为法兰安装结构，内桶法兰与内桶轴法兰密封连接，内桶法兰和内桶轴法兰之间设有复合密封垫圈，包括金属骨架和橡胶垫圈，两者硫化结合为一体结构。
进一步的，所述的复合密封垫圈为一扁体环状结构，中间为中心孔，复合密封垫圈的上表面和/或下表面沿中心孔外圈设有第一环形凸筋。
进一步的，所述的复合密封垫圈沿圆周分布多个螺栓穿孔，复合密封垫圈的上表面和/或下表面在每个螺栓穿孔的外周分别设有第二环形凸筋，优选的，两相邻第二环形凸筋之间连接有分段凸筋，更优选的，多个分段凸筋位于同一圆周轨迹上，与第一环形凸筋同圆心。
进一步的，所述的复合密封垫圈与内桶轴法兰之间设有定位结构，优选的，该定位结构为凸出于复合密封垫圈表面的定位柱，内桶轴法兰上设有与定位柱匹配的定位孔。
进一步的，所述的金属骨架和橡胶垫圈均为环形结构，两者同圆心沿径向内外硫化粘接在一起。
进一步的，所述的橡胶垫圈设于金属骨架的内圈，构成金属骨架的内衬结构，两者结合形成扁体环状的复合密封垫圈。
进一步的，所述金属骨架的内周为与橡胶垫圈硫化粘接的结合部，结合部由多段曲线依次连接构成。
进一步的，所述的橡胶垫圈包括环形橡胶本体，外周与金属骨架硫化粘接，内周为中心孔，环形橡胶本体的上表面和/或下表面沿中心孔外圈设有第一环形凸筋，于第一环形凸筋的外部沿圆周分布多个螺栓穿孔，环形橡胶本体的上表面和/或下表面在每个螺栓穿孔的外周分别设有第二环形凸筋。
进一步的，两相邻第二环形凸筋之间连接有分段凸筋，优选的，多个分段凸筋位于同一圆周轨迹上，与第一环形凸筋同圆心。
进一步的，所述环形橡胶本体的上下表面与金属骨架的上下表面分别处于同一水平面，硫化粘接处平滑过渡，所述的第一环形凸筋和第二环形凸筋凸出于复合密封垫圈表面，优选的，两者凸出的高度相同。金属骨架和橡胶垫圈的上下表面高度一致保证金属骨架和橡胶垫圈均能接触良好，确保金属骨架能够充分抵抗径向力和轴向力的作用。
所述第二环形凸筋在内桶法兰和内桶轴法兰紧固以后，复合密封垫圈螺栓穿孔内径由 于第二环形凸筋压缩而变小，橡胶内衬和螺栓之间起到一定的密封作用。
进一步的，所述的环形橡胶本体凸出于下表面设有至少一定位柱，位于两螺栓穿孔，内桶轴法兰上设有与定位柱匹配的定位孔。
进一步的，所述的螺栓穿孔和定位柱均部分突出于环形橡胶本体的外周，形成弧形突出部，金属骨架的内周设有多个与环形橡胶本体外周弧形突出部匹配的弧形豁口。该结构不仅增加了金属骨架和橡胶垫圈两者的接触面积，而且增加了金属骨架和橡胶垫圈之间的粘接强度，更进一步的加大了防止金属骨架和橡胶垫圈相对结合强度。使复合密封垫圈能够承受较强的径向力和轴向力，同时保证了两者之间的连接安全，延长复合密封垫圈的使用寿命。
所述的定位柱的高度为3～12mm，在洗衣机的安装过程中，首先将内桶轴穿过外桶底，与外桶底之间密封，减速器和电机安装在外桶底部，然后将复合密封垫圈定位在内桶轴法兰上，再将与内桶底固定的内桶法兰放置在复合密封垫圈上，最后螺栓安装固定。该安装过程中通过定位柱将复合密封垫圈定位在内桶轴法兰上，利用螺栓依次穿过内桶法兰、复合密封垫圈及内桶轴法兰将三者相对固定。
本发明涉及的全自动洗衣机，包括外桶和设于外桶内的内桶，内桶上部设有出水孔，所述内桶的出水孔以下部分为周壁和底壁均密封的盛水腔室结构。
该洗衣机只在内桶上部设有出水孔、下部无孔密封，使洗涤水无需进入到内桶与外桶之间的区域，只需注入内桶合适水量即可，从而达到大幅节省洗涤用水的目的，省水率达到了30％～40％；同时，每次洗涤都减少了洗涤剂、辅助剂等添加剂的投放量，节约了洗涤成本；另外，内桶与外桶之间的区域不再参与洗涤，内桶与外桶之间的区域所滞留的污垢，滋生的细菌不会与内桶的衣服发生水流接触，从而能有效避免细菌的交叉感染，使洗衣机的使用更加卫生、环保、安全；由于脱水排水时，内桶高速旋转带动水流向上流动从出水孔排出，水中漂浮的线屑不会残留在衣物上，完全排出，洗涤更干净。
采用本发明所述的技术方案后，带来以下有益效果：
1、本发明所述复合密封垫圈安装于内桶轴法兰和内桶法兰之间，同时与内桶轴连接，采用金属骨架和橡胶材料硫化结合，能够克服内桶轴法兰和内桶法兰之间由于脱水运转产生的刚性连接的径向力和轴向力，防止两者之间出现松动、晃动和渗水和内桶轴的渗水等问题。
2、本发明所述的复合密封垫圈设有的定位结构，能够克服洗衣机安装过程中，由于内桶轴法兰，复合密封垫圈和内桶法兰之间接触面积过大容易造成相对的移动，而增加了螺 栓固定调节过程的难度。
下面结合附图对本发明的具体实施方式作进一步详细的描述。
附图说明
图1：本发明复合密封垫圈结构示意图；
图2：本发明复合密封垫圈真是主视图；
图3：本发明一种洗衣机内桶轴密封结构示意图；
图4：本发明一种洗衣机内桶轴密封结构局部示意图；
图5：本发明复合密封垫圈组装图；
图6：本发明复合密封垫圈上分段凸筋示意图；
图7：本发明一种洗衣机内桶轴密封结构装配示意图；
附图中的标号说明：1、复合密封垫圈，2、金属骨架，3、橡胶垫圈，4、第一环形凸筋，5、弧形内齿，6、螺栓穿孔，7、第二环形凸筋，8、定位结构，9、中心孔，10、内桶轴法兰，11、内桶法兰，12、螺栓，13、内桶轴，14、非圆形中心孔，15、分段凸筋，16、弧形突出部，17、弧形豁口，18、定位孔。
具体实施方式
为使本发明的上述目的、特征和优点能够更加明显易懂，下面结合附图和具体实施方式对本发明作进一步详细的说明。
如图1至图7所示，本发明所述的洗衣机内桶轴密封安装结构，包括设于内桶底部的内桶法兰11和内桶轴13，内桶轴13上端部为法兰安装结构，内桶法兰11与内桶轴法兰10密封连接，内桶法兰11和内桶轴法兰10之间设有复合密封垫圈1，包括金属骨架2和橡胶垫圈3，两者硫化结合为一体结构。
如图7所示，本发明所述的洗衣机内桶底部密封，即，内桶法兰11与内桶底密封连接，内桶轴13上端部为法兰安装结构，内桶法兰11与内桶轴法兰10也密封连接，内桶为盛水结构。
实施例一
如图1所示，本实施例所述的复合密封垫圈1为一扁体环状结构，中间为中心孔9，复合密封垫圈1的上表面和/或下表面沿中心孔9外圈设有第一环形凸筋4。
实施例二
如图1所示，本实施例所述的复合密封垫圈1沿圆周分布多个螺栓穿孔6，复合密封垫圈1的上表面和/或下表面在每个螺栓穿孔6的外周分别设有第二环形凸筋7，优选的，两相邻第二环形凸筋7之间连接有分段凸筋15，更优选的，多个分段凸筋15位于同一圆周轨迹上，与第一环形凸筋4同圆心。
实施例三
如图2和图7所示，本实施例所述的复合密封垫圈1凸出于表面设有定位结构8，优选的，该定位结构8为定位柱，内桶轴法兰10上设有与定位柱匹配的定位孔18。
优选的，本实施例所述的环形橡胶本体凸出于下表面设有至少一定位柱，位于两螺栓穿孔6，内桶轴法兰10上设有与定位柱匹配的定位孔18。
实施例四
如图6所示，本实施例所述的复合密封垫圈定位结构除了定位柱的一种方式，和/或采用非圆形中心孔14与内桶轴13配合的方式。
实施例五
如图1所示，本实施例所述的金属骨架2和橡胶垫圈3均为环形结构，两者由内向外硫化粘接。所述的橡胶垫圈3设于金属骨架2的内圈，构成金属骨架2的内衬结构，两者结合形成扁体环状的复合密封垫圈1。所述金属骨架2的内周为与橡胶垫圈3硫化粘接的结合部，结合部由多段曲线依次连接构成。
实施例六
如图1和图6所示，本实施例所述的橡胶垫圈3包括环形橡胶本体，外周与金属骨架2硫化粘接，内周为中心孔9，环形橡胶本体的上表面和/或下表面沿中心孔9外圈设有第一环形凸筋4，于第一环形凸筋4的外部沿圆周分布多个螺栓穿孔6，环形橡胶本体的上表面和/或下表面在每个螺栓穿孔6的外周分别设有第二环形凸筋7。两相邻第二环形凸筋7之间连接有分段凸筋15，优选的，多个分段凸筋位于同一圆周轨迹上，与第一环形凸筋4同圆心。
实施例七
如图6所示，本实施例所述环形橡胶本体的上下表面与金属骨架2的上下表面分别处于同一水平面，硫化粘接处平滑过渡，所述的第一环形凸筋4和第二环形凸筋7凸出于复合密封垫圈1表面，两者凸出的高度相同。
优选的，本实施例所述的两者凸出的高度设置较矮，例如0.8cm,能够使复合密封垫圈1更好地发挥密封作用，防止内桶法兰11和内桶轴法兰10刚性接触以后仍有间隙产生。
实施例八
如图5所示，本实施例所述的螺栓穿孔6和定位柱8均部分突出于环形橡胶本体的外周，形成弧形突出部16，金属骨架2的内周设有多个与环形橡胶本体外周弧形突出部16匹配的弧形豁口17。
进一步的，进一步增加了金属骨架2和橡胶垫圈3的接触面积，提高了两者之间的粘接强度。
优选的，本实施例所述的定位结构8的高度6～10mm。
实施例九
如图7所示，本实施例所述的洗衣机内桶轴密封安装结构的安装过程中，首先将内桶轴13穿过外桶底，与外桶底之间密封，减速器和电机安装在外桶底部，然后将复合密封垫圈1定位在内桶轴法兰10上，再将与内桶底固定的内桶法兰11放置在复合密封垫圈1上，最后螺栓12安装固定。该安装过程中通过定位柱8将复合密封垫圈1定位在内桶轴法兰10上，利用螺栓12依次穿过内桶法兰11、复合密封垫圈1及内桶轴法兰10将三者相对固定。
优选的，本实施例所述的定位结构8凸端与内桶轴法兰定位孔18配合好后，内桶轴法兰10和复合密封垫圈1位置相对固定，内桶轴法兰10螺栓孔和复合密封垫圈2相对应的螺栓穿孔6一一对应且不会发生相对移动，然后调整内桶法兰11螺栓孔与复合密封垫圈螺栓穿孔6对应的位置，调整完成后安装螺栓12。所述复合密封垫圈定位结构8的作用不仅固定了复合密封垫圈1和内桶轴法兰10相对位置利于安装，而且减少了复合密封垫圈1和内桶轴法兰10的相对接触面积减轻了两者之间相对移动的磨损，从而减少复合密封垫圈1的使用寿命。
洗衣机工作时，电机带动内桶轴13转动，从而带动内桶转动，为防止内桶水从内桶轴13渗水到外桶中，同时承受内桶轴法兰10和内桶法兰11的径向力、轴向力和防止内桶轴法兰10和内桶法兰11之间松动、晃动和渗水问题，本发明采用了复合密封垫圈1能够有效的解决上述问题。
以上所述仅为本发明的优选实施方式，应当指出，对于本领域的普通技术人员而言，在不脱离本发明原理前提下，还可以做出多种变形和改进，这也应该视为本发明的保护范围。

Claims (12)

  1. 一种洗衣机内桶轴密封安装结构，包括设于内桶底部的内桶法兰和内桶轴，内桶轴上端部为法兰安装结构，内桶法兰与内桶轴法兰密封连接，其特征在于：内桶法兰和内桶轴法兰之间设有复合密封垫圈，包括金属骨架和橡胶垫圈，两者硫化结合为一体结构。
  2. 根据权利要求1所述的一种洗衣机内桶轴密封安装结构，其特征在于：所述的复合密封垫圈为一扁体环状结构，中间为中心孔，复合密封垫圈的上表面和/或下表面沿中心孔外圈设有第一环形凸筋。
  3. 根据权利要求1所述的一种洗衣机内桶轴密封安装结构，其特征在于：所述的复合密封垫圈沿圆周分布多个螺栓穿孔，复合密封垫圈的上表面和/或下表面在每个螺栓穿孔的外周分别设有第二环形凸筋，优选的，两相邻第二环形凸筋之间连接有分段凸筋，更优选的，多个分段凸筋位于同一圆周轨迹上，与第一环形凸筋同圆心。
  4. 根据权利要求1所述的一种洗衣机内桶轴密封安装结构，其特征在于：所述的复合密封垫圈与内桶轴法兰之间设有定位结构，优选的，该定位结构为凸出于复合密封垫圈表面的定位柱，内桶轴法兰上设有与定位柱匹配的定位孔。
  5. 根据权利要求1所述的一种洗衣机内桶轴密封安装结构，其特征在于：所述的金属骨架和橡胶垫圈均为环形结构，两者同圆心沿径向内外硫化粘接在一起。
  6. 根据权利要求5所述的一种洗衣机内桶轴密封安装结构，其特征在于：所述的橡胶垫圈设于金属骨架的内圈，构成金属骨架的内衬结构，两者结合形成扁体环状的复合密封垫圈。
  7. 根据权利要求6所述的一种洗衣机内桶轴密封安装结构，其特征在于：所述金属骨架的内周为与橡胶垫圈硫化粘接的结合部，结合部由多段曲线依次连接构成。
  8. 根据权利要求6所述的一种洗衣机内桶轴密封安装结构，其特征在于：所述的橡胶垫圈包括环形橡胶本体，外周与金属骨架硫化粘接，内周为中心孔，环形橡胶本体的上表面和/或下表面沿中心孔外圈设有第一环形凸筋，于第一环形凸筋的外部沿圆周分布多个螺栓穿孔，环形橡胶本体的上表面和/或下表面在每个螺栓穿孔的外周分别设有第二环形凸筋。
  9. 根据权利要求8所述的一种洗衣机内桶轴密封安装结构，其特征在于：两相邻第二环形凸筋之间连接有分段凸筋，优选的，多个分段凸筋位于同一圆周轨迹上，与第一环形凸筋同圆心。
  10. 根据权利要求8所述的一种洗衣机内桶轴密封安装结构，其特征在于：所述环形橡胶本体的上下表面与金属骨架的上下表面分别处于同一水平面，硫化粘接处平滑过渡，所述的第一环形凸筋和第二环形凸筋凸出于复合密封垫圈表面，优选的，两者凸出的高度相同。
  11. 根据权利要求8所述的一种洗衣机内桶轴密封安装结构，其特征在于：所述的环形橡胶本体凸出于下表面设有至少一个定位柱，在两螺栓穿孔之间，内桶轴法兰上设有与定位柱匹配的定位孔。
  12. 根据权利要求8所述的一种洗衣机内桶轴密封安装结构，其特征在于：所述的螺栓穿孔和定位柱均部分突出于环形橡胶本体的外周，形成弧形突出部，金属骨架的内周设有多个与环形橡胶本体外周弧形突出部匹配的弧形豁口。
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