Bearing assembly and washing machine
阅读说明:本技术 一种轴承组件及洗衣机 (Bearing assembly and washing machine ) 是由 杨飞 卢金波 李丽平 于亮亮 于 2018-09-11 设计创作,主要内容包括:本发明属于洗衣机技术领域,公开了一种轴承组件,包括前轴承和后轴承,内筒轴穿设于所述前轴承和所述后轴承上,所述前轴承和所述后轴承之间设有轴套,所述内筒轴紧固于所述后轴承的内圈时,所述后轴承的内圈压紧所述轴套于所述前轴承的内圈上。本发明通过设置轴套,并且在内筒轴紧固在后轴承的内圈随其转动时,后轴承的内圈会将轴套压紧在前轴承的内圈上,并使得前轴承的内圈随内筒轴以及后轴承的内圈一起同步转动,能够避免内筒轴与前轴承的内圈之间的相对运动,进而避免了内筒轴与前轴承的内圈的磨损,延长了使用寿命。(The invention belongs to the technical field of washing machines and discloses a bearing assembly which comprises a front bearing and a rear bearing, wherein an inner cylinder shaft is arranged on the front bearing and the rear bearing in a penetrating mode, a shaft sleeve is arranged between the front bearing and the rear bearing, when the inner cylinder shaft is fastened to an inner ring of the rear bearing, the inner ring of the rear bearing presses the shaft sleeve on the inner ring of the front bearing. According to the invention, the shaft sleeve is arranged, and when the inner cylinder shaft is fastened on the inner ring of the rear bearing to rotate along with the inner ring, the inner ring of the rear bearing can press the shaft sleeve on the inner ring of the front bearing, and the inner ring of the front bearing can synchronously rotate along with the inner cylinder shaft and the inner ring of the rear bearing, so that relative motion between the inner cylinder shaft and the inner ring of the front bearing can be avoided, further abrasion between the inner cylinder shaft and the inner ring of the front bearing is avoided, and the service life is prolonged.)
1. A bearing assembly comprises a front bearing (1) and a rear bearing (2), wherein an inner cylinder shaft (10) penetrates through the front bearing (1) and the rear bearing (2), and is characterized in that a shaft sleeve (3) is arranged between the front bearing (1) and the rear bearing (2), when the inner cylinder shaft (10) is fastened on an inner ring of the rear bearing (2), the inner ring of the rear bearing (2) compresses the shaft sleeve (3) on the inner ring of the front bearing (1).
2. A bearing assembly according to claim 1, characterized by a wave washer (4), the wave washer (4) being located between the sleeve (3) and the inner ring of the rear bearing (2).
3. A bearing assembly according to claim 2, characterized in that it further comprises a flat washer (5), said flat washer (5) being located between said bushing (3) and said wave washer (4).
4. Bearing assembly according to claim 3, characterized in that the sleeve (3) comprises a converging section (31) and a diverging section (32) connected, the end face of the converging section (31) abutting against the flat washer (5) and the end face of the diverging section (32) abutting against the inner ring of the front bearing (1).
5. A bearing assembly according to claim 4, characterized in that the outer diameter of the throat section (31) is not greater than the outer diameter of the flat washer (5).
6. A washing machine comprising a bearing assembly as claimed in any one of claims 1 to 5.
7. Washing machine according to claim 6, characterized in that the inner drum shaft (10) comprises a large shaft section (101) and a small shaft section (102), the large shaft section (101) being arranged through the inner ring of the front bearing (1) and the small shaft section (102) being arranged through the inner ring of the rear bearing (2).
8. Washing machine according to claim 7, characterized in that the reduced section (31) of the bushing (3) is sleeved at the small shaft section (102).
9. Washing machine according to claim 7, characterized in that the small shaft segment (102) is further connected with a pulley (40) and is rotated by the pulley (40).
Technical Field
The invention relates to the technical field of washing machines, in particular to a bearing assembly and a washing machine.
Background
The drum washing machine includes inner drum, outer drum, casing, observation window pad, motor and other structure. In order to keep the inner drum of the drum washing machine rotating, a front bearing and a rear bearing are usually installed at the rear part of the outer drum, an inner drum shaft is arranged through the two bearings, the inner drum shaft is fastened to an inner ring of the rear bearing through a bolt, and the inner ring of the front bearing is in clearance fit with the inner drum shaft.
The rear bearing inner ring is fastened with an inner cylinder shaft through a bolt in the prior art, and when the inner cylinder shaft rotates, the rear bearing inner ring can rotate along with the inner cylinder shaft. However, because the inner ring of the front bearing is in clearance fit with the inner cylinder shaft, when the inner cylinder shaft rotates, the inner ring of the front bearing and the inner cylinder shaft move relatively, so that the inner ring of the bearing and the inner cylinder shaft are abraded, and the service life of the bearing and the inner cylinder shaft is shortened.
Disclosure of Invention
The invention aims to provide a bearing assembly and a washing machine, and aims to solve the problems that a front bearing and an inner barrel shaft of the existing washing machine are abraded and the service life is shortened.
In order to achieve the purpose, the invention adopts the following technical scheme:
a bearing assembly comprises a front bearing and a rear bearing, wherein an inner cylinder shaft penetrates through the front bearing and the rear bearing, a shaft sleeve is arranged between the front bearing and the rear bearing, and when the inner cylinder shaft is fastened on an inner ring of the rear bearing, the inner ring of the rear bearing presses the shaft sleeve on the inner ring of the front bearing.
Preferably, the bearing further comprises a wave washer, and the wave washer is located between the shaft sleeve and the inner ring of the rear bearing.
Preferably, the wave washer further comprises a flat washer, and the flat washer is located between the shaft sleeve and the wave washer.
Preferably, the shaft sleeve comprises a reducing section and a flaring section which are connected, the end face of the reducing section abuts against the flat washer, and the end face of the flaring section abuts against the inner ring of the front bearing.
Preferably, the outer diameter of the constricted section is not greater than the outer diameter of the flat washer.
The invention also provides a washing machine comprising the bearing assembly.
Preferably, the inner cylinder shaft comprises a large shaft section and a small shaft section, the large shaft section is arranged in the inner ring of the front bearing in a penetrating mode, and the small shaft section is arranged in the inner ring of the rear bearing in a penetrating mode.
Preferably, the necking section of the shaft sleeve is sleeved at the small shaft section.
Preferably, the small shaft section is also connected with a belt pulley and is driven by the belt pulley to rotate.
The invention has the beneficial effects that: through setting up the axle sleeve to when the inner circle of inner tube axle fastening back bearing rotated along with it, the inner circle of back bearing can compress tightly the axle sleeve on the inner circle of front bearing, and make the inner circle of front bearing rotate along with the inner circle of inner tube axle and back bearing is synchronous together, can avoid the relative motion between the inner circle of inner tube axle and front bearing, and then avoided the wearing and tearing of inner tube axle and front bearing's inner circle, prolonged life.
Drawings
FIG. 1 is a schematic view showing a structure of a washing machine according to the present invention;
FIG. 2 is an exploded view of the washing machine of the present invention;
FIG. 3 is an enlarged schematic view taken at A of FIG. 1 in accordance with the present invention;
FIG. 4 is a schematic view of the construction of the bushing of the present invention;
fig. 5 is a schematic view of the wave washer of the present invention.
In the figure:
1. a front bearing; 2. a rear bearing; 3. a shaft sleeve; 4. a wave washer; 5. a flat washer; 6. a bolt; 31. a necking section; 32. a flared section; 10. an inner cylindrical shaft; 20. an inner barrel; 30. an outer cylinder; 40. a belt pulley; 101. a large shaft section; 102. a small shaft section.
Detailed Description
The technical scheme of the invention is further explained by a specific embodiment formula in combination with the attached drawings.
The present invention provides a bearing assembly, which is installed on a washing machine (as shown in fig. 1 and 2), and by which an
the
A
In this embodiment, as shown in fig. 4, the
In this embodiment, by providing the
In this embodiment, the
Further, in the present embodiment, a
In this embodiment, the outer diameter of the
The present invention also provides a washing machine, as shown in fig. 1 and 2, which includes an
In this embodiment, the inner
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
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