A stirring washing machine reduction clutch and a stirring washing machine thereof

Abstract

This utility model relates to a deceleration clutch for an agitator washing machine and the washing machine itself, belonging to the field of deceleration clutch technology. It overcomes the deficiency of insufficient support strength of the impeller shaft in high-impact washing machines. The device includes an impeller shaft and a spin-drying shaft. The impeller shaft is supported upper and lower within the spin-drying shaft by movable support member one and movable support member two. Movable support member one is a needle roller bearing and / or a ball bearing, and movable support member two is a needle roller bearing and a thrust bearing or a ball bearing. This design can adapt to the support force requirements of high-impact washing machines, improving the service life of the agitator. The stepped mounting hole not only provides axial limitation but also appropriately reduces the radial dimension of the shaft, lowering costs. A shaft retaining ring improves the installation stability of the impeller shaft. Adjusting shims eliminate axial dimensional errors, reducing production costs.

Description

Technical Field

[0001] This utility model belongs to the field of deceleration clutch technology, and specifically relates to a deceleration clutch for an agitator washing machine and the agitator washing machine thereof. Background Technology

[0002] Current top-loading washing machines use a flat-plate pulsator. The pulsator is low, resulting in less stress on the pulsator shaft support. Typically, such as... Figure 1 As shown, the impeller shaft is supported inside the spin-drying shaft by an oil-impregnated bearing. This usually meets the requirements during the lifespan of the washing machine. However, for agitator washing machines, the agitator impeller is taller, which increases the stress on the impeller shaft. The original support method can no longer play the corresponding role, and it is necessary to strengthen the support of the impeller shaft. How to strengthen the support is a technical problem that we urgently need to solve. Utility Model Content

[0003] The primary objective of this invention is to provide a deceleration clutch for an agitator washing machine to solve the aforementioned technical problems in the prior art.

[0004] The second objective of this invention is to provide a stirring washing machine to solve the aforementioned technical problems existing in the prior art.

[0005] According to the above objectives, the basic technical solution of this utility model is as follows: a deceleration clutch for a stirring washing machine, comprising a pulsator shaft and a spin-drying shaft, wherein the pulsator shaft is supported on the upper and lower sides of the spin-drying shaft by a first movable support member and a second movable support member, wherein the first movable support member is a needle roller bearing and / or a ball bearing, and the second movable support member is a needle roller bearing and a thrust bearing or a ball bearing.

[0006] Furthermore, the dehydration shaft is provided with stepped mounting holes corresponding to the movable support member one and the movable support member two.

[0007] Furthermore, the stepped mounting hole and the outer rings of the first and second movable support members are installed together with the outer circle of the impeller shaft through an interference fit or a clearance fit.

[0008] More specifically, the first movable support member is press-fitted onto the upper stepped mounting hole in a downward direction, and the second movable support member is press-fitted onto the lower stepped mounting hole in a downward direction.

[0009] Furthermore, the inner rings or inner contact surfaces of the first and second movable support members are installed together with the outer circle of the impeller shaft through interference fit, clearance fit, or transition fit.

[0010] Furthermore, the impeller shaft also includes an impeller shaft step, which is supported on the upper end surface of the movable support member.

[0011] More specifically, a gasket is provided between the impeller shaft step and the movable support member.

[0012] Furthermore, it also includes a shaft retaining ring, which is used to movably engage the impeller shaft with the lower end face of the second movable support member at the lower part of the dehydration shaft.

[0013] More specifically, an adjusting shim may be provided between the shaft retaining ring and the movable support member two.

[0014] An agitator washing machine, wherein the agitator washing machine is equipped with the aforementioned agitator washing machine reduction clutch.

[0015] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:

[0016] 1. The movable support component one of this utility model is a needle roller bearing and / or a ball bearing, and the movable support component two is a needle roller bearing and a thrust bearing or a ball bearing, which can meet the support force requirements of high impeller and improve the service life of the mixer.

[0017] 2. The dehydration shaft of this utility model is provided with a stepped mounting hole, which not only solves the problem of axial limiting, but also appropriately reduces the radial dimension of the dehydration shaft and reduces costs;

[0018] 3. This utility model product uses a shaft retaining ring for axial locking and limiting, which can effectively ensure that the impeller shaft is not pulled out by high-strength water flow and improve the installation stability of the impeller shaft;

[0019] 4. This utility model product is equipped with an adjusting shim, which can effectively adjust the axial clearance, appropriately reduce the axial dimension error of the impeller shaft and the dehydration shaft, and reduce production costs. Attached Figure Description

[0020] Figure 1 A schematic diagram of the support structure of the reduction clutch in an existing pulsator washing machine;

[0021] Figure 2 This is a schematic diagram of the structure of Embodiment 1 of the present utility model product;

[0022] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of the present utility model product;

[0023] Figure 4 This is a schematic diagram of the structure of Embodiment 3 of the present utility model product;

[0024] Figure 5This is a schematic diagram of the structure of the product embodiment 3 of this utility model installed on the reduction clutch of the washing machine;

[0025] Figure 6 for Figure 5 A schematic diagram of the structure viewed from below;

[0026] In the diagram: 1. Impeller shaft; 2. Dehydration shaft; 3. Movable support component one; 4. Movable support component two; 5. Shaft retaining ring; 6. Shim; 7. Impeller shaft step; 8. Adjusting shim. Detailed Implementation

[0027] Combination Figures 2 to 6 This is a schematic diagram illustrating the principle and structure of a reversing clutch for a stirring washing machine and an embodiment of a pulsator washing machine according to the present invention.

[0028] Example 1

[0029] Combination Figure 2 This is a schematic diagram of the principle structure of a deceleration clutch embodiment 1 for a stirring washing machine, including a pulsator shaft 1 and a spin-drying shaft 2. The pulsator shaft 1 is supported on the upper and lower sides of the spin-drying shaft 2 by a movable support 3 and a movable support 4. The movable support 3 is a needle roller bearing, and the movable support 4 is a needle roller bearing and a thrust bearing.

[0030] To facilitate installation and axial positioning, the dehydration shaft 2 is provided with stepped mounting holes corresponding to the movable support member 3 and the movable support member 4.

[0031] Preferably, the stepped mounting hole is integrated with the outer ring of the movable support 3 and the movable support 4 by interference fit. The movable support 3 is pressed onto the upper stepped mounting hole from top to bottom, and the movable support 4 is pressed onto the lower stepped mounting hole from bottom to top.

[0032] Preferably, when the movable support 3 and the movable support 4 have an inner ring, the inner ring is pressed together with the outer circle of the impeller shaft 1 by interference fit. When there is no inner ring, their inner contact surfaces are assembled together with the outer circle of the impeller shaft 1 by clearance fit. Alternatively, if there is an inner ring, the inner ring is installed together with the outer circle of the impeller shaft 1 by transition fit, so as to fully allow the rolling elements of the bearing itself to rotate.

[0033] For ease of installation and axial positioning, preferably, the impeller shaft 1 further includes an impeller shaft step 7, which is supported on the upper end surface of the movable support member 3, and a gasket 6 is provided between the impeller shaft step 7 and the movable support member 3.

[0034] To maintain axial positioning and flexible rotation, preferably, a shaft retaining ring 5 is also included. The shaft retaining ring is a retaining ring. The impeller shaft 1 is movably engaged with the lower end face of the lower movable support member 4 of the dehydration shaft 2 via the shaft retaining ring 5. Preferably, to adjust the axial clearance, an adjusting shim 8 may be provided between the shaft retaining ring 5 and the movable support member 4.

[0035] Example 2

[0036] Combination Figure 3 This is a schematic diagram of the principle structure of a retarder clutch for a stirring washing machine, embodiment 2. This embodiment is based on the above embodiment, except that the movable support 3 is a ball bearing and the movable support 4 is a ball bearing, and the rest is the same as embodiment 1.

[0037] An agitator washing machine, equipped with the embodiment described herein, has its agitator impeller shaft mounted on the impeller shaft.

[0038] Example 3

[0039] Combination Figure 4 This is a schematic diagram of the principle structure of a retarder clutch for a stirring washing machine, embodiment 3. This embodiment is based on the above embodiment, wherein the movable support 3 is a needle roller bearing and a ball bearing, and the movable support 4 is a needle roller bearing and a thrust bearing. The rest is the same as in embodiment 1.

[0040] Combination Figure 5 and Figure 6 This is a schematic diagram of the principle structure of a washing machine equipped with a reduction clutch in Embodiment 3. The washing machine is equipped with the reduction clutch of this embodiment, and its agitator shaft is mounted on the impeller shaft. It can be applied to various clutch washing machines with dual power, fully automatic or hand-washing modes.

[0041] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0042] Although this document frequently uses terms such as 1. impeller shaft; 2. dehydration shaft; 3. movable support component one; 4. movable support component two; 5. shaft retaining ring; 6. shim; 7. impeller shaft step; 8. adjusting shim, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

[0043] The above describes the agitator-type washing machine deceleration clutch provided by this utility model. Specific preferred embodiments have been used to illustrate the principle and implementation of this utility model. These embodiments are only used to help understand the principle and core idea of ​​this utility model. It should be noted that for those skilled in the art, the implementation schemes in the above embodiments can be further combined or replaced without departing from the design concept of this utility model, and several improvements and modifications can be made to this utility model. These improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A retarder clutch for a stirring washing machine, comprising an impeller shaft (1) and a spin-drying shaft (2), wherein the impeller shaft (1) is supported above and below within the spin-drying shaft (2) by movable support member one (3) and movable support member two (4), characterized in that: The first movable support (3) is a needle roller bearing and / or a ball bearing, and the second movable support (4) is a needle roller bearing and a thrust bearing or a ball bearing.

2. The agitator-type washing machine reduction clutch according to claim 1, characterized in that: The dehydration shaft (2) is provided with step mounting holes corresponding to the movable support member one (3) and the movable support member two (4).

3. The agitator-type washing machine reduction clutch according to claim 2, characterized in that: The step mounting hole is assembled into one piece with the outer ring of the movable support member one (3) and the movable support member two (4) by interference fit.

4. The agitator-type washing machine reduction clutch according to claim 3, characterized in that: The first movable support member (3) is pressed onto the upper step mounting hole in a downward direction, and the second movable support member (4) is pressed onto the lower step mounting hole in a downward direction.

5. The agitator-type washing machine reduction clutch according to claim 2, characterized in that: The inner rings or inner contact surfaces of the movable support member one (3) and the movable support member two (4) are installed together with the outer circle of the impeller shaft (1) by interference fit, clearance fit or transition fit.

6. The agitator-type washing machine reduction clutch according to claim 1, characterized in that: The impeller shaft (1) also includes an impeller shaft step (7), which is supported on the upper surface of the movable support member (3).

7. The agitator-type washing machine reduction clutch according to claim 6, characterized in that: A gasket (6) is provided between the impeller shaft step (7) and the movable support member (3).

8. The agitator-type washing machine reduction clutch according to claim 1, characterized in that: It also includes a shaft retaining ring (5), and the impeller shaft (1) is movably engaged with the lower end face of the lower movable support member (4) of the dehydration shaft (2) by means of the shaft retaining ring (5).

9. The agitator-type washing machine reduction clutch according to claim 8, characterized in that: An adjusting shim (8) may be provided between the shaft retaining ring (5) and the movable support member (4).

10. A stirring washing machine, characterized in that: The agitator washing machine is equipped with a retarder clutch as described in any one of claims 1 to 9.

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