WO2016000386A1 - 滚筒洗衣机外筒、滚筒洗衣机及其内外筒组装方法 - Google Patents

滚筒洗衣机外筒、滚筒洗衣机及其内外筒组装方法 Download PDF

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Publication number
WO2016000386A1
WO2016000386A1 PCT/CN2014/091313 CN2014091313W WO2016000386A1 WO 2016000386 A1 WO2016000386 A1 WO 2016000386A1 CN 2014091313 W CN2014091313 W CN 2014091313W WO 2016000386 A1 WO2016000386 A1 WO 2016000386A1
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Prior art keywords
bearing
washing machine
inner cylinder
drum washing
bearing support
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Ceased
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PCT/CN2014/091313
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English (en)
French (fr)
Inventor
卢金波
蒋玉亮
张华成
杨飞
李青
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Qingdao Haier Drum Washing Machine Co Ltd
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Qingdao Haier Drum Washing Machine Co Ltd
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Application filed by Qingdao Haier Drum Washing Machine Co Ltd filed Critical Qingdao Haier Drum Washing Machine Co Ltd
Publication of WO2016000386A1 publication Critical patent/WO2016000386A1/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
    • D06F37/26—Casings; Tubs

Definitions

  • the invention relates to the field of washing machines, in particular to a drum washing machine outer cylinder, a drum washing machine and an inner and outer cylinder assembling method thereof.
  • the existing drum washing machine comprises an inner tube and an outer tube.
  • the outer tube is generally made of plastic material for holding water; the inner tube is made of stainless steel, and the inner tube body has a water-permeable hole for washing clothes, and the inner tube is rear.
  • the center is fixed with an inner cylinder shaft, and the other end of the inner cylinder shaft is connected to the rotor of the motor through the bottom of the outer cylinder, and the inner cylinder shaft is used for transmitting rotational power, and the rotor of the motor drives the inner cylinder to rotate through the inner cylinder shaft.
  • the outer cylinder is fixed and the inner cylinder is rotated by the motor.
  • the inner cylinder shaft is located at the outer cylinder portion and needs to be supported by two bearings of different sizes, and the bearing is press-fitted into the bearing support seat of the outer cylinder through the tooling.
  • the loose fit that is, the inner diameter of the two bearings is larger than the outer diameter of the assembled bearing on the inner cylinder shaft, and the two bearings have a clearance fit with the inner cylinder shaft.
  • the inner diameter of the first bearing is smaller than the outer diameter of the first bearing on the inner cylinder shaft
  • the inner diameter of the second bearing is larger than the outer diameter of the second bearing on the inner cylinder shaft, and the first bearing and the inner cylinder shaft are With the fit, the second bearing and the inner cylinder shaft are in a clearance fit.
  • the inner cylinder shaft and the tripod are integrated.
  • the first bearing, the oil seal and the second bearing are respectively press-fitted in the bearing support seat behind the outer cylinder, and then the tripod is fastened with the inner cylinder.
  • the assembled inner cylinder shaft is placed into the two bearings of the size pressed behind the outer cylinder.
  • the inner cylinder shaft and the first bearing are in an interference fit, and the inner cylinder shaft needs to be press-fitted into the first bearing. In order to ensure the fit, it is necessary to press the inner cylinder shaft in the first bearing after press fitting. Install the second bearing. If the tripod is integrated with the inner cylinder shaft, the inner cylinder shaft is press-fitted in the first bearing and the inner cylinder is assembled into the outer cylinder, and when the second bearing is pressed, there is no support plane available on the outer cylinder. Therefore, when the bearing is tightly fitted with the shaft, the inner cylinder shaft and the tripod are designed as a separate structure.
  • the material used for the inner cylinder shaft is lower than that when the bearing and the shaft are tightly fitted, and the bearing and the shaft are tightly fitted, and the inner cylinder shaft and the screw fastening inner cylinder and the inner cylinder are added.
  • the cost of the drum washing machine is lower than when the bearing and the shaft are tightly fitted.
  • the gap between the inner cylinder shaft and the bearing is large, and the drum washing machine is also large during operation.
  • the inner cylinder shaft and the tripod can only be designed as a separate structure, and the inner cylinder shaft and the tripod are matched.
  • the location of the portion as a support surface for the press-fitted second bearing also increases the cost of the washing machine.
  • an object of the present invention is to provide an outer cylinder of a drum washing machine, wherein the bearing support seat of the outer cylinder is convenient for the tripod and the inner cylinder shaft of the integral structure to be mounted on the drum washing machine, thereby ensuring low noise and lowering of the drum washing machine.
  • the cost is to provide an outer cylinder of a drum washing machine, wherein the bearing support seat of the outer cylinder is convenient for the tripod and the inner cylinder shaft of the integral structure to be mounted on the drum washing machine, thereby ensuring low noise and lowering of the drum washing machine.
  • Another object of the present invention is to provide a method for assembling the inner and outer cylinders of a drum washing machine, which not only ensures low noise of the drum washing machine but also reduces the cost.
  • An outer cylinder of a drum washing machine has a bearing support seat, the bearing support seat is cylindrical, and a through hole is disposed at a middle position thereof, the through hole includes an oil seal fitting portion, a first bearing fitting portion and a second bearing fit And an outer circumferential surface of the bearing support seat is provided with at least one engaging portion that can cooperate with the claw, and the engaging portion is located at an end of the bearing support seat away from the outer cylinder.
  • the engaging portion is a groove.
  • the diameter of the first bearing mating portion is larger than the diameter of the second bearing mating portion, and the second bearing mating portion is located near one end of the recess.
  • the outer circumference of the bearing support is provided with a plurality of evenly distributed extensions, the grooves being located at the upper end of the extension.
  • the tripod is integral with the inner cylinder shaft
  • a first bearing and a second bearing for supporting the inner cylinder shaft are disposed in the bearing support seat, and the first bearing and the inner cylinder shaft are in an interference fit.
  • the first bearing and the second bearing are both in an interference fit with the bearing support.
  • a rear side of the outer cylinder is provided with a motor for providing a driving force
  • a rear end of the inner cylinder shaft is coupled to a rotor of the motor for transmitting a motor driving force to the inner cylinder.
  • an oil seal is further disposed in the bearing support, and the oil seal is located on a front side of the first bearing.
  • a method for assembling an inner and outer cylinder of a drum washing machine comprising the outer cylinder according to any of the above, comprising Step:
  • step S4 the method further comprises the steps of:
  • the oil seal is pressed into the oil seal matching portion of the bearing support seat, so that the oil seal and the oil seal matching portion are matched;
  • An advantageous technical effect of the technical solution proposed by the embodiment of the present invention is that at least one groove that can cooperate with the claw is disposed on the outer circumferential surface of the bearing support of the drum washing machine, and the groove is located at the bearing support
  • the end of the seat away from the outer cylinder, when used, the groove structure can cooperate with the claw structure of the press-fit tool as the support fixing structure of the outer cylinder, so the outer cylinder of the drum washing machine does not need to be pressed for the second bearing
  • the support plane can conveniently mount the tripod and the inner cylinder shaft of the integral structure on the drum washing machine, thereby ensuring low noise of the drum washing machine and reducing the cost.
  • FIG. 1 is a schematic structural view of a drum washing machine provided by an embodiment of the apparatus of the present invention
  • Figure 2 is an exploded view of the inner and outer cylinders provided by the embodiment of the apparatus of the present invention.
  • FIG. 3 is a schematic structural view of an outer cylinder provided by an embodiment of the apparatus of the present invention.
  • Figure 4 is a cross-sectional view of the outer cylinder provided by the embodiment of the apparatus of the present invention.
  • Figure 5 is a schematic structural view of a bearing support seat provided by an embodiment of the apparatus of the present invention.
  • Figure 6 is a cross-sectional view of a bearing support provided by an embodiment of the apparatus of the present invention.
  • Figure 7 is an exploded view of the bearing press-fit tool and the bearing support seat provided by the embodiment of the device of the present invention.
  • Figure 8 is a structural schematic view showing the combination of the bearing press-fit tool and the bearing support seat provided by the embodiment of the device of the present invention.
  • Figure 9 is a schematic structural view of a claw provided by an embodiment of the apparatus of the present invention.
  • FIG. 10 is a flow chart of a method for assembling an inner and outer cylinder of a drum washing machine according to an embodiment of the method of the present invention.
  • FIG. 1 is a schematic structural view of a drum washing machine provided by an embodiment of the apparatus of the present invention
  • FIG. 2 is an exploded view of the inner cylinder and the outer cylinder provided by the embodiment of the apparatus of the present invention.
  • the drum washing machine provided by the present invention comprises a box body 3 for forming an appearance of the washing machine, and an outer tube 2 for slidable water disposed in the box body 3, and a rotatable connection.
  • the inner cylinder 1 inside the outer cylinder 2 is coaxial with the outer cylinder 2, and the inner cylinder 1 is used for washing laundry and is rotatable.
  • the inner drum 2 of the drum washing machine provided by the present invention is provided with a tripod 6 at the rear, and an inner cylinder shaft 7 is connected to the center of the tripod 6, and the tripod 6 and the inner cylinder shaft 7 are integrally formed.
  • One end of the inner cylinder shaft 7 is connected to the rear portion of the inner cylinder 1 through the tripod 6, and the other end penetrates the rear portion of the outer cylinder 2.
  • the rear structure of the outer drum of the drum washing machine provided by the present invention is provided with a bearing support seat 5 at the rear of the outer cylinder 2, and the bearing support base 5 is embedded in the drum washing machine.
  • a first bearing 8 and a second bearing 9 for supporting the inner cylinder shaft 7 are disposed in the bearing support base 5, and an oil seal 10 is further disposed in the bearing support base 5, and the oil seal 10 is located in the first The front side of a bearing 8.
  • the first bearing 8, the second bearing 9, and the oil seal 10 are press-fitted into the bearing support 5 at the rear of the outer cylinder 2, and the bearing support 5 is embedded in the center of the rear of the outer cylinder 2 by injection molding.
  • the inner cylinder shaft 5 is supported by two bearings of a first bearing 8 and a second bearing 9, and the first bearing 8 and the inner cylinder shaft 7 are in an interference fit.
  • the bearing support base 5 and the outer cylinder 2 are of an integral structure, and are manufactured by an injection molding process.
  • the rear side of the outer cylinder 2 is provided with a motor 4 for providing a driving force
  • the rear end of the inner cylinder shaft 7 passes through the rear portion of the outer cylinder 2 and the motor 4 a rotor connection for transmitting a motor driving force to the inner cylinder 1, and the motor 4 drives the inner cylinder 1 to rotate by the inner cylinder shaft 7 Complete the laundry process.
  • the bearing support base 5 is cylindrical, and a through hole is disposed at a middle position thereof.
  • the through hole includes an oil seal fitting portion 501 and a first bearing fit.
  • the oil seal fitting portion 501 is configured to cooperate with an outer diameter of the oil seal 10
  • the first bearing fitting portion 502 is configured to cooperate with an outer diameter of the first bearing 8, the second bearing mating portion 503
  • the outer circumferential surface of the bearing support base 5 is provided with at least one engaging portion that can cooperate with the claws 11.
  • the engaging portion is located at an end of the bearing support base 5 away from the outer cylinder 2.
  • the engaging portion can be used to cooperate with the claw 11 of the press-fit tool, the outer cylinder 2 can be horizontally lifted, and then the second bearing 9 can be press-fitted.
  • the engaging portion of the bearing support base 5 serves to support and fix the outer cylinder 2 when the second bearing 9 is press-fitted.
  • the diameter of the first bearing fitting portion 502 is larger than the diameter of the second bearing fitting portion 503, and the second bearing fitting portion 503 is located at one end of the engaging portion.
  • the diameter of the first bearing 8 is larger than the diameter of the second bearing 9.
  • the bearing press tool of the present invention includes a jaw 11 and a press-fit telescopic arm 12.
  • the claw 11 is used to cooperate with the engaging portion to lift the outer cylinder 2 horizontally.
  • the press-fit telescopic arm 12 is used to press the second bearing 9 into the bearing support 6.
  • the claw 11 includes a fitting portion 101 and a connecting portion 102 connected to the fitting portion 101.
  • the engaging portion 101 cooperates with the engaging portion;
  • the connecting portion 102 is configured to be coupled to the upper end power device to jointly lift the outer tube 2 horizontally.
  • the engaging portion 101 is vertically connected to the connecting portion 102, that is, the claw 11 is disposed in an L-shaped configuration.
  • the number of the claws 11 is not limited, but preferably, the number of the claws 11 is preferably four.
  • first bearing 8 and the second bearing 9 and the bearing support 8 are both in an interference fit.
  • the engaging portion is a groove 504.
  • the number of the grooves 504 and the arrangement gap between the respective grooves 504 are not limited.
  • the groove 504 can be arranged as an annular groove, the number of which is one. It is also possible to set the number of the grooves 504 to be larger than one, and the plurality of grooves 504 are evenly distributed on the outer circumferential surface of the bearing support 5, and the arrangement gaps between the grooves 504 are equal and more
  • the grooves 504 are symmetrically distributed.
  • the shape of the grooves 504 and the positional relationship between them are not limited thereto, as long as the claws 11 of the press-fit tool can be engaged, the outer cylinder 2 is horizontally lifted, and the second bearing 9 can be completed. Press it.
  • a plurality of evenly distributed extensions 505 are disposed on the outer circumference of the bearing support 5, and the grooves 504 are located at the upper end of the extension 505.
  • the present invention also provides a method of assembling the inner and outer cylinders of the above-described drum washing machine, as shown in FIG. Specifically, the following steps are included:
  • the first bearing 8 is press-fitted into the first bearing fitting portion 502 of the bearing support base 5 to cooperate with the first bearing fitting portion 502.
  • the oil seal 10 is then press-fitted into the oil seal fitting portion 501 of the bearing support base 5 to cooperate with the oil seal fitting portion 501.
  • step S3 Pressing the inner cylinder shaft 7 into the bearing support base 5 to make the inner cylinder shaft 7 and the first bearing 8 have an interference fit.
  • the tripod 6 and the inner cylinder shaft 7 are integrally formed, after the inner cylinder shaft 7 is mounted, the inner cylinder 1 does not have the mounting support surface of the second bearing 9 attached thereto. So at the most When the second bearing 9 is press-fitted, the following step S4 is used.
  • the claw 11 of the press-fit tool is firmly engaged with the engaging portion, and then the claw 11 is lifted by the power device, and the claw 11 is lifted, and the outer tube 2 is horizontally lifted.
  • the outer circumferential surface of the bearing support of the drum washing machine is provided with at least one engaging portion that can cooperate with the claw, the engaging portion is located at the same end as the second bearing mating portion, and is engaged when used.
  • the part can cooperate with the claw structure of the press-fit tool as the support fixing structure of the outer cylinder, so the outer cylinder of the drum washing machine does not need a support plane when performing the second bearing press fitting, and the tripod of the integrated structure can be conveniently arranged.
  • the drum shaft is mounted on the drum washing machine, which not only ensures low noise of the drum washing machine but also reduces the cost.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Abstract

一种滚筒洗衣机外筒、滚筒洗衣机及其内外筒组装方法。所述外筒（2）具有轴承支撑座（5），轴承支撑座（5）为筒形，其中间位置设置有通孔，所述通孔包括油封配合部（501）、第一轴承配合部（502）及第二轴承配合部（503），其中，所述轴承支撑座（5）的外圆周面上设置有可与卡爪（11）相配合的至少一个卡合部，所述卡合部位于所述轴承支撑座（5）上远离外筒（2）的一端。内外筒装配时，卡合部可以与压装工装的卡爪（11）配合作为滚筒洗衣机外筒（2）的支撑固定结构，所以该滚筒洗衣机的外筒（2）在进行第二轴承（9）压装的时候不需要支撑平面，可以方便地将一体结构的三脚架（6）与内筒（1）轴安装在滚筒洗衣机上，既保证了滚筒洗衣机的低噪音，又降低了成本。

Description

滚筒洗衣机外筒、滚筒洗衣机及其内外筒组装方法 技术领域
本发明涉及洗衣机领域，具体涉及一种滚筒洗衣机外筒、滚筒洗衣机及其内外筒组装方法。
背景技术
现有的滚筒洗衣机包含有内筒和外筒，外筒一般为塑料材质，用于盛水；内筒为不锈钢材质，内筒筒体带有透水孔，用于盛洗涤衣物，内筒后部中心固定有内筒轴，内筒轴的另一端穿过外筒的底部与电机的转子连接，内筒轴用于传递转动动力，电机的转子通过内筒轴带动内筒转动。滚筒洗衣机运行时，外筒固定不动，内筒在电机带动下转动。为保证内筒正常转动，内筒轴位于外筒的部分需要通过大小两个轴承支撑，而轴承通过工装压装在外筒的轴承支撑座中。
现有的滚筒洗衣机外筒轴承与轴的配合方式有两种方式：松配合和紧配合。松配合即大小两个轴承的内径都大于内筒轴上装配轴承处的外径，大小两个轴承与内筒轴均为间隙配合。紧配合即第一轴承的内径小于内筒轴上装配第一轴承处的外径，第二轴承的内径大于内筒轴上装配第二轴承处的外径，第一轴承与内筒轴为过盈配合，第二轴承与内筒轴为间隙配合。
轴承与轴松配合时，内筒轴与三脚架为一体结构，装配时先分别将第一轴承、油封、第二轴承压装在外筒后的轴承支撑座中，然后将三脚架与内筒紧固，最后将装配后的内筒轴放入到压装在外筒后的大小两轴承中。
轴承与轴紧配合时，内筒轴与第一轴承为过盈配合，需要将内筒轴压装到第一轴承中。为保证配合，在压装时需要在将内筒轴压装在第一轴承中后再压 装第二轴承。如果三脚架与内筒轴为一体结构，内筒轴压装在第一轴承中后内筒已装配到外筒中，再压装第二轴承时外筒上没有可以利用的支撑平面。因此，轴承与轴紧配合时，内筒轴与三脚架设计为分体结构。装配时，先分别将第一轴承、油封、内筒轴、第二轴承压装在外筒中后，再将内筒与三脚架紧固，最后通过螺钉将内筒轴的端部紧固在三脚架的凹槽中，完成内筒与内筒轴的紧固。
综上所述，轴承与轴松配合时，内筒轴采用的材料比轴承与轴紧配合时要低，而且轴承与轴紧配合时增加了压装内筒轴和螺钉紧固内筒与内筒轴的工序，轴承与轴松配合时比轴承与轴紧配合时滚筒洗衣机的成本要低。但是，轴承与轴松配合时内筒轴与轴承之间的间隙较大，滚筒洗衣机在运转时也大。同时，采取轴承与轴紧配合方式时，由于在进行第二轴承压装的时候没有其他的支撑平面，只能将内筒轴与三脚架设计为分体结构，并将内筒轴与三脚架配合的部位设置为平面作为压装第二轴承的支撑面，也会使洗衣机成本增加。
基于以上描述，亟需要一种新的滚筒洗衣机外筒，以解决现有洗衣机存在的噪音大，成本高的问题。
发明内容
有鉴于此，本发明的目的在于提供一种滚筒洗衣机外筒，该外筒的轴承支撑座便于一体结构的三脚架与内筒轴安装在滚筒洗衣机上，既保证了滚筒洗衣机的低噪音，又降低了成本。
本发明的目的还在于提供一种滚筒洗衣机，该滚筒洗衣机具有上述的轴承支撑座，该滚筒洗衣机可以使用一体结构的三脚架与内筒轴，既保证了滚筒洗衣机的低噪音，又降低了成本。
本发明的目的还在于提供一种滚筒洗衣机内外筒组装方法，既保证了滚筒洗衣机的低噪音，又降低了成本。
本发明实施例采用以下技术方案：
一种滚筒洗衣机外筒，外筒具有轴承支撑座，所述轴承支撑座为筒形，其中间位置设置有通孔，所述通孔包括油封配合部、第一轴承配合部及第二轴承配合部，所述轴承支撑座的外圆周面上设置有可与卡爪相配合的至少一个卡合部，所述卡合部位于所述轴承支撑座上远离外筒的一端。
优选的，所述卡合部为凹槽。
优选的，所述第一轴承配合部的直径大于所述第二轴承配合部的直径，所述第二轴承配合部位于靠近所述凹槽的一端。
优选的，所述轴承支撑座的外圆周上设置有若干个均匀分布的延伸部，所述凹槽位于所述延伸部的上端。
一种滚筒洗衣机，具有以上任一项所述的外筒，其包括：
位于所述外筒内部的内筒，所述内筒包括内筒轴，所述内筒后部设置有三脚架，所述内筒轴通过所述三脚架连接在所述内筒的后部并贯穿所述外筒的后部；
所述三脚架与所述内筒轴为一体结构；
所述轴承支撑座内设有用于支承所述内筒轴的第一轴承和第二轴承，所述第一轴承与所述内筒轴为过盈配合。
优选的，所述第一轴承和第二轴承与所述轴承支撑座均为过盈配合。
优选的，所述外筒的后侧设置有用于提供驱动力的电机，所述内筒轴的后端与所述电机的转子连接，用于向所述内筒传递电机驱动力。
优选的，所述轴承支撑座内还设有油封，所述油封位于所述第一轴承的前侧。
一种滚筒洗衣机内外筒组装方法，采用如以上任一项所述的外筒，包括步 骤：
S4、将卡爪与卡合部相卡合，通过卡爪将外筒水平吊起；
S5、将第二轴承压装在轴承支撑座的第二轴承配合部处，使第二轴承的内径与内筒轴的外径相配合。
优选的，在步骤S4之前，还包括步骤：
S1、将第一轴承压装进轴承支撑座的第一轴承配合部处，使第一轴承与第一轴承配合部相配合；
S2、将油封压装进轴承支撑座的油封配合部处，使油封与油封配合部相配合；
S3、将内筒轴压装进轴承支撑座内，使内筒轴与第一轴承为过盈配合。
本发明实施例提出的技术方案的有益技术效果是：由于所述滚筒洗衣机轴承支撑座的外圆周面上设置有可与卡爪相配合的至少一个凹槽，所述凹槽位于所述轴承支撑座上远离外筒的一端，使用时，凹槽结构可以与压装工装的卡爪结构配合作为外筒的支撑固定结构，所以该滚筒洗衣机的外筒在进行第二轴承压装的时候不需要支撑平面，可以方便地将一体结构的三脚架与内筒轴安装在滚筒洗衣机上，既保证了滚筒洗衣机的低噪音，又降低了成本。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对本发明实施例描述中所需要使用的附图作简单的介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据本发明实施例的内容和这些附图获得其他的附图。
图1是本发明装置实施例提供的滚筒洗衣机的结构示意图；
图2是本发明装置实施例提供的内筒和外筒的爆炸图；
图3是本发明装置实施例提供的外筒的结构示意图；
图4是本发明装置实施例提供的外筒的剖视图；
图5是本发明装置实施例提供的轴承支撑座的结构示意图；
图6是本发明装置实施例提供的轴承支撑座的剖视图；
图7是本发明装置实施例提供的轴承压装工装与轴承支撑座的爆炸图；
图8是本发明装置实施例提供的轴承压装工装与轴承支撑座相结合的结构示意图；
图9是本发明装置实施例提供的卡爪的结构示意图；
图10是本发明方法实施例提供的滚筒洗衣机内外筒组装方法流程图。
图中：
1、内筒；2、外筒；3、箱体；4、电机；5、轴承支撑座；6、三脚架；7、内筒轴；8、第一轴承；9、第二轴承；10、油封；11、卡爪；12、压缩伸缩臂；
101、配合部；102、连接部；
501、油封配合部；502、第一轴承配合部；503、第二轴承配合部；504、凹槽；505、延伸部。
具体实施方式
为使本发明解决的技术问题、采用的技术方案和达到的技术效果更加清楚，下面将结合附图对本发明实施例的技术方案作进一步的详细描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
装置实施例
图1是本发明装置实施例提供的滚筒洗衣机的结构示意图；图2是本发明装置实施例提供的内筒和外筒的爆炸图。如图1至图2所示，本发明提供的滚筒洗衣机包括形成洗衣机外观的箱体3，设置在所述箱体3内的用于盛放洗涤水的外筒2、可转动的连接在所述外筒2内部的内筒1，所述内筒1与所述外筒2为同轴结构，所述内筒1用于洗涤衣物并且可旋转。
本发明提供的滚筒洗衣机的内筒2后部设置有一个三脚架6，所述三脚架6的中心位置连接有一个内筒轴7，所述三脚架6与所述内筒轴7为一体结构。所述内筒轴7的一端通过所述三脚架6连接在所述内筒1的后部，另一端贯穿所述外筒2的后部。
如图3和图4所示，为本发明提供的滚筒洗衣机外筒后部结构，所述外筒2的后部设置有轴承支撑座5，所述轴承支撑座5内嵌在所述滚筒洗衣机的外筒后部中心处。所述轴承支撑座5内设有用于支撑所述内筒轴7的第一轴承8和第二轴承9，且所述轴承支撑座5内还设置有油封10，所述油封10位于所述第一轴承8的前侧。第一轴承8、第二轴承9及油封10都是压装进外筒2后部的轴承支撑座5中，而轴承支撑座5通过注塑内嵌在外筒2后部中心。内筒轴5通过第一轴承8、第二轴承9两个轴承支撑，且所述第一轴承8与所述内筒轴7为过盈配合。
于本实施例中，作为优选方案，所述轴承支撑座5与所述外筒2为一体式结构，生产时采用注塑工艺制造而成。
于本实施例中，所述外筒2的后侧设置有用于提供驱动力的电机4，所述内筒轴7的后端穿过所述外筒2的后部后与所述电机4的转子连接，用于向所述内筒1传递电机驱动力，所述电机4通过所述内筒轴7带动所述内筒1转动， 完成洗衣过程。
如图5至图6所示为本发明提供的轴承支撑座5，所述轴承支撑座5为筒形，其中间位置设置有通孔，所述通孔包括油封配合部501、第一轴承配合部502及第二轴承配合部503。所述油封配合部501用于和所述油封10的外径相配合，所述第一轴承配合部502用于和所述第一轴承8的外径相配合，所述第二轴承配合部503用于和所述第二轴承9的外径相配合。其中，所述轴承支撑座5的外圆周面上设置有可与卡爪11相配合的至少一个卡合部。所述卡合部位于所述轴承支撑座5上远离外筒2的一端。所述卡合部可用于与压装工装的卡爪11配合，可将外筒2水平吊起，然后进行第二轴承9的压装。所述轴承支撑座5的卡合部在压装第二轴承9时起到支撑固定外筒2的作用。
优选的，所述第一轴承配合部502的直径大于所述第二轴承配合部503的直径，所述第二轴承配合部503位于靠近所述卡合部的一端。相应的，所述第一轴承8的直径大于所述第二轴承9的直径。
如图7、图8、图9所示，本发明提供的轴承压装工装包括卡爪11和压装伸缩臂12。所述卡爪11用于与所述卡合部相配合，将外筒2水平吊起。所述压装伸缩臂12用于将第二轴承9压进轴承支撑座6内。所述卡爪11包括配合部101以及与所述配合部101相连的连接部102。工作时，所述配合部101与所述卡合部相配合；所述连接部102用于与上端动力装置相连结，共同作用将外筒2水平吊起。
于本实施例中，作为优选方案，所述配合部101与所述连接部102垂直相连，即所述卡爪11设置为L型结构。
于本实施例中，所述卡爪11的个数不受限制，但作为优选方案，所述卡爪11的个数优选为4个。
于本实施例中，作为优选方案，所述第一轴承8和第二轴承9与所述轴承支撑座8均为过盈配合。
于本实施例中，作为优选方案，所述卡合部为凹槽504。
于本实施例中，所述凹槽504的个数以及各个凹槽504之间的排列间隙均不受限制。可以将所述凹槽504的设置为环形凹槽，其个数为1。也可以将所述凹槽504的个数设置为大于1个，多个凹槽504均匀分布于所述轴承支撑座5的外圆周面上，各个凹槽504之间的排列间隙相等，并且多个凹槽504呈对称分布。当然，所述凹槽504的形状以及相互之间的位置关系并不局限于此，只要可以与压装工装的卡爪11相配合，将外筒2水平吊起，并且能完成第二轴承9的压装即可。
于本实施例中，作为优选方案，所述轴承支撑座5的外圆周上设置有若干个均匀分布的延伸部505，所述凹槽504位于所述延伸部505的上端。
方法实施例
本发明还提供了一种上述滚筒洗衣机的内外筒组装方法，如图10所示。具体包括以下步骤：
S1、首先将第一轴承8压装进所述轴承支撑座5的第一轴承配合部502处，与所述第一轴承配合部502相配合。
S2、然后将油封10压装进所述轴承支撑座5的油封配合部501处，与所述油封配合部501相配合。
S3、将内筒轴7压装进所述轴承支撑座5内，使内筒轴7与所述第一轴承8为过盈配合。此时，由于所述三脚架6与所述内筒轴7为一体结构，所以安装好内筒轴7后，所述内筒1即没有安装第二轴承9的安装支撑面了。所以在最 后压装第二轴承9时，使用以下步骤S4。
S4、将压装工装的卡爪11与所述卡合部牢固配合，之后通过动力装置将卡爪11吊起，卡爪11上升的同时带动外筒2水平吊起。
S5、然后通过压缩伸缩臂12进行第二轴承9的压装，将第二轴承9压装在轴承支撑座5的第二轴承配合部503处，使第二轴承9的内径与所述内筒轴7的外径相配合。
由于所述滚筒洗衣机轴承支撑座的外圆周面上设置有可与卡爪相配合的至少一个卡合部，所述卡合部与所述第二轴承配合部位于同一端，使用时，卡合部可以与压装工装的卡爪结构配合作为外筒的支撑固定结构，所以该滚筒洗衣机的外筒在进行第二轴承压装的时候不需要支撑平面，可以方便地将一体结构的三脚架与内筒轴安装在滚筒洗衣机上，既保证了滚筒洗衣机的低噪音，又降低了成本。
注意，上述仅为本发明的较佳实施例及所运用技术原理。本领域技术人员会理解，本发明不限于这里所述的特定实施例，对本领域技术人员来说能够进行各种明显的变化、重新调整和替代而不会脱离本发明的保护范围。因此，虽然通过以上实施例对本发明进行了较为详细的说明，但是本发明不仅仅限于以上实施例，在不脱离本发明构思的情况下，还可以包括更多其他等效实施例，而本发明的范围由所附的权利要求范围决定。

Claims (10)

  1. 一种滚筒洗衣机外筒，所述外筒具有轴承支撑座，所述轴承支撑座为筒形，其中间位置设置有通孔，所述通孔包括油封配合部、第一轴承配合部及第二轴承配合部，其特征在于，所述轴承支撑座的外圆周面上设置有可与卡爪相配合的至少一个卡合部，所述卡合部位于所述轴承支撑座上远离外筒的一端。
  2. 如权利要求1所述的滚筒洗衣机外筒，其特征在于，所述卡合部为凹槽。
  3. 如权利要求2所述的滚筒洗衣机外筒，其特征在于，所述第一轴承配合部的直径大于所述第二轴承配合部的直径，所述第二轴承配合部位于靠近所述凹槽的一端。
  4. 如权利要求2所述的滚筒洗衣机外筒，其特征在于，所述轴承支撑座的外圆周上设置有若干个均匀分布的延伸部，所述凹槽位于所述延伸部的上端。
  5. 一种滚筒洗衣机，具有权利要求1至4任一项所述的外筒，其特征在于，包括：
    位于所述外筒内部的内筒，所述内筒包括内筒轴，所述内筒后部设置有三脚架，所述内筒轴通过所述三脚架连接在所述内筒的后部并贯穿所述外筒的后部；
    所述三脚架与所述内筒轴为一体结构；
    所述轴承支撑座内设有用于支承所述内筒轴的第一轴承和第二轴承，所述第一轴承与所述内筒轴为过盈配合。
  6. 如权利要求5所述的滚筒洗衣机，其特征在于，所述第一轴承和第二轴承与所述轴承支撑座均为过盈配合。
  7. 如权利要求6所述的滚筒洗衣机，其特征在于，所述外筒的后侧设置有用于提供驱动力的电机，所述内筒轴的后端与所述电机的转子连接，用于向所 述内筒传递电机驱动力。
  8. 如权利要求7所述的滚筒洗衣机，其特征在于，所述轴承支撑座内还设有油封，所述油封位于所述第一轴承的前侧。
  9. 一种滚筒洗衣机内外筒组装方法，采用如权利要求1-4中任一项所述的外筒，其特征在于，包括步骤：
    S4、将卡爪与卡合部相卡合，通过卡爪将外筒水平吊起；
    S5、将第二轴承压装在轴承支撑座的第二轴承配合部处，使第二轴承的内径与内筒轴的外径相配合。
  10. 如权利要求9所述的滚筒洗衣机内外筒组装方法，其特征在于，在步骤S4之前，还包括步骤：
    S1、将第一轴承压装进轴承支撑座的第一轴承配合部处，使第一轴承与第一轴承配合部相配合；
    S2、将油封压装进轴承支撑座的油封配合部处，使油封与油封配合部相配合；
    S3、将内筒轴压装进轴承支撑座内，使内筒轴与第一轴承为过盈配合。
PCT/CN2014/091313 2014-07-03 2014-11-17 滚筒洗衣机外筒、滚筒洗衣机及其内外筒组装方法 Ceased WO2016000386A1 (zh)

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CN107099974B (zh) * 2017-05-04 2020-05-15 无锡小天鹅电器有限公司 洗衣机
CN109281126A (zh) * 2017-07-21 2019-01-29 青岛海尔滚筒洗衣机有限公司 清洗设备
CN109423829B (zh) * 2017-08-21 2021-12-17 青岛海尔洗涤电器有限公司 一种洗衣机外桶及洗衣机内外桶组装方法
CN111304880B (zh) * 2018-12-12 2022-11-15 博西华电器（江苏）有限公司 衣物护理机
CN111058240B (zh) * 2019-12-09 2024-01-19 上海海尔洗涤电器有限公司 一种洗衣机外筒底及洗衣机
CN111633420B (zh) * 2020-06-04 2022-01-04 格力电器(成都)有限公司 一种洗衣机滚筒部件自动压装设备及其工作方法

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