Universal washing machine speed reducer with detachable upper shaft

Abstract

The utility model provides a universal washing machine speed reducer with a detachable upper shaft, which comprises an upper shell and the upper shaft, the upper shaft is detachably connected with the upper shell through a detachable structure, the detachable structure comprises a threaded column and an oil seal gland, the threaded column extends towards the upper end and is arranged on the upper shell, and the oil seal gland can be in threaded connection with the threaded column. The upper shaft is sleeved with an oil seal, and a limiting flange used for limiting the oil seal is arranged on the upper shaft. The upper shaft is inserted into the threaded column, and the oil seal gland is arranged on the outer side of the upper shaft in a sleeving mode and is in threaded connection with the threaded column, so that the oil seal gland, the oil seal and the upper shaft abut against and are locked; the utility model provides a universal washing machine speed reducer with a detachable upper shaft. The universal washing machine speed reducer overcomes the defect that an upper shaft of an existing washing machine speed reducer cannot be detached.

Description

TECHNICAL FIELD

[0001] The utility model relates to a washing machine speed reducer field especially a kind of upper shaft detachable general washing machine speed reducer. BACKGROUND

[0002] As indispensable electrical appliance of modern family, the performance of washing machine directly influences the user's use experience. And washing machine speed reducer plays a key role in the operation of washing machine, its development course is closely related to the progress of washing machine technology. At present, the speed reducer using planetary gear structure gradually popularizes, compared with traditional gear transmission, planetary gear structure has the advantages of large transmission ratio, strong bearing capacity, small volume, etc., can effectively improve transmission efficiency, reduce energy consumption.

[0003] As patent No. CN205711425U discloses a washing machine speed reducer gasket, it includes first connecting shaft, second connecting shaft, belt pulley and lower cover sleeved below belt pulley, first connecting shaft is installed in the axis of belt pulley and lower cover, lower cover below is provided with upper cover, upper cover side is connected with gear, upper cover other side is connected with oil seal, second connecting shaft is installed in the axis of upper cover and gear;Upper cover and second connecting shaft are sequentially provided with third oil-impregnated bearing, sixth gasket and rubber ring. In the above structure, upper cover and second connecting shaft are connected through third oil-impregnated bearing, sixth gasket, rubber ring and oil seal, so that second connecting shaft cannot be disassembled relative to upper cover, so that replacement and maintenance are very inconvenient. UTILITY MODEL CONTENTS

[0004] (I) technical problem to be solved

[0005] The problem to be solved by the utility model is to provide a kind of upper shaft detachable general washing machine speed reducer to overcome the defect that upper shaft of existing washing machine speed reducer is not detachable.

[0006] (II) technical scheme

[0007] To solve the technical problem, the utility model provides a kind of upper shaft detachable general washing machine speed reducer, including upper shell and upper shaft, the upper shaft is detachably connected with the upper shell by disassembly structure, the disassembly structure includes the threaded column that is extended and set on the upper shell towards upper end and the oil seal gland that can be threadedly connected with the threaded column, the oil seal is sleeved on the upper shaft, the upper shaft is provided with the limiting flange for limiting the oil seal;The upper shaft is inserted in the threaded column, the oil seal gland is sleeved on the outer side of the upper shaft and is threadedly connected with the threaded column, so that the oil seal gland, the oil seal and the upper shaft are locked.

[0008] In some embodiments, the center of the upper shell is provided with a center seat, the threaded column is coaxially arranged with the center seat and integrally connected with the center seat.

[0009] In some embodiments, the center seat is provided with a center hole, an upper oil-impregnated bearing is installed in the center hole, and the upper shaft is arranged in the upper oil-impregnated bearing.

[0010] In some embodiments, the upper shaft is respectively sleeved with an upper gasket and a lower gasket on both sides of the limiting flange, and the oil seal, the upper gasket, the limiting flange, the lower gasket and the upper oil-impregnated bearing are locked in sequence under the pressure of the oil seal cover.

[0011] In some embodiments, the threaded column is provided with an external thread part, the oil seal cover is provided with an internal thread part matched with the external thread part, and the outer wall of the oil seal cover is annularly and equidistantly provided with a plurality of anti-skid grooves.

[0012] In some embodiments, a lower shell fixed to the lower side of the upper shell is further included, the lower shell is provided with a containing cavity, and a planetary gear assembly is installed in the containing cavity, and the insertion end of the upper shaft is engaged with the planetary gear assembly.

[0013] In some embodiments, the upper shell is provided with an upper annular connecting disc, the lower shell is provided with a lower annular connecting disc opposite to the upper annular connecting disc, and the upper annular connecting disc and the lower annular connecting disc are fixedly connected through a plurality of annularly and equidistantly arranged fasteners.

[0014] In some embodiments, a pulley sleeved on the lower side of the lower shell and a lower shaft inserted into the lower shell are further included, and one end of the lower shaft is engaged with the planetary gear assembly.

[0015] In some embodiments, the lower shaft is provided with a limiting protrusion at one end of the lower shell, the limiting protrusion is abutted on the lower shell to limit the lower shaft from being separated from the lower shell, and the lower shell is provided with a through hole, and a lower oil-impregnated bearing is installed in the through hole, and the lower shaft is arranged in the lower oil-impregnated bearing.

[0016] In some embodiments, the lower shaft is arranged in the pulley, and a spring gasket and a fastening nut are installed on the lower end of the lower shaft to limit the pulley from being separated from the lower shaft.

[0017] (Three) beneficial effects

[0018] The utility model provides a kind of upper shaft detachable general washing machine speed reducer, and the detachable function of upper shaft can be realized using dismounting structure, when maintaining, replace upper shaft or the rest part except upper shaft according to actual damage condition, avoid overall scrap, use more environmentally friendly;When dismounting, just need to screw oil seal gland, it is simple and convenient to operate;When maintaining or replacing, the original upper shaft is detached and loaded into new speed reducer, so that the annoyance of maintenance master because of wrong specification can be solved, and the cost of investment when stocking can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0020] Figure 1 It is a perspective view of the utility model discloses a kind of upper shaft detachable general washing machine speed reducer;

[0021] Figure 2 It is another perspective view of the utility model discloses a kind of upper shaft detachable general washing machine speed reducer;

[0022] Figure 3 It is a sectional view of the utility model discloses a kind of upper shaft detachable general washing machine speed reducer;

[0023] Figure 4 It is an explosion view of the utility model discloses a kind of upper shaft detachable general washing machine speed reducer;

[0024] Figure 5 It is an explosion view of the utility model discloses a kind of upper shaft detachable general washing machine speed reducer dismounting structure;

[0025] Figure 6 It is a perspective view of the utility model discloses a kind of upper shaft detachable general washing machine speed reducer upper shell;

[0026] Figure 7 It is a perspective view of the utility model discloses a kind of upper shaft detachable general washing machine speed reducer oil seal gland;

[0027] The corresponding component names of various reference numerals in the figures are as follows: 1, upper shell; 101, threaded column; 102, center seat; 103, center hole; 104, external threaded part; 105, upper annular connecting disc; 2, upper shaft; 201, limiting flange; 3, oil seal cover; 301, internal thread; 302, anti-skid groove; 4, oil seal; 5, oil- containing bearing; 6, upper gasket; 7, lower gasket; 8, lower shell; 801, accommodating cavity; 802, lower annular connecting disc; 803, through hole; 9, planetary gear assembly; 10, lower shaft; 1001, limiting protrusion; 11, lower oil-containing bearing; 12, spring gasket; 13, fastening nut; 14, belt pulley. DETAILED DESCRIPTION

[0028] The application will be described in detail below with reference to the drawings and specific embodiments.

[0029] The embodiments of this application are illustrated by way of example in the following detailed description in connection with certain drawings described below. It is to be understood that other specific arrangements can be utilized and operational changes can be made without departing from the spirit of the application. There are many alternate ways of implementing the application. It is therefore intended that the application not be limited to the particular embodiments disclosed in this writing. It is also intended that the application cover all alternatives that come within the scope of the claims.

[0030] It is to be understood that the following description of various aspects of embodiments within the scope of the appended claims is set out in broad terms. It is to be expressly understood that these aspects described herein can be implemented independently of one another, and that various embodiments of the present application can include, incorporate or be implemented with any of the aspects presented herein. It is intended that each aspect or independent implementation can also be implemented with respect to other aspects or independent implementations.

[0031] It is also to be understood that the above description is only illustrative of the application and that modifications and other implementations can come within the scope of the claims. It is intended that the following claims be construed to embrace all such modifications and implementations.

[0032] Also in the following description, specific details are given to provide thorough understanding of examples. However, one skilled in the relevant art will understand that the examples can be practiced without these specific details.

[0033] The technical solutions provided by the embodiments of the present application are described below with reference to the drawings.

[0034] Referring to Figures 1 to 7 The utility model provides a detachable upper shaft general type washing machine speed reducer, including upper casing 1 and upper shaft 2, upper shaft 2 passes through dismounting structure and is detachably connected with upper casing 1.

[0035] Referring to Figure 1 、 Figure 3 and Figure 5 , the dismounting structure includes a threaded column 101 extending towards the upper end and disposed on the upper casing 1, and an oil seal gland 3 threadedly connectable with the threaded column 101. An oil seal 4 is sleeved on the upper shaft 2. The upper shaft 2 is provided with a limiting flange 201 for limiting the oil seal 4. The oil seal 4 can be directly or indirectly abutted on the limiting flange 201. The upper shaft 2 can be inserted into the threaded column 101 from top to bottom. The oil seal gland 3 is sleeved on the outer side of the upper shaft 2 and threadedly connected with the threaded column 101. When the oil seal gland 3 is tightened, the oil seal gland 3, the oil seal 4 and the upper shaft 2 are abutted and locked.

[0036] This structure, using dismounting structure can realize the detachable function of upper shaft 2, when maintaining, can replace upper shaft 2 or the rest of upper shaft 2 according to actual damage condition, avoid overall scrap, use more environmental protection;When disassembling, only need to screw oil seal gland 3, simple and convenient operation. In actual use, the length and shape of the upper shaft 2 of different speed reducers are different. When the maintenance technician prepares the goods, the cost is relatively large. In addition, the technician may run a lot of useless roads due to the mismatch of the model and specifications. The upper shaft 2 is generally not easy to damage. When maintaining or replacing, the original upper shaft 2 can be disassembled and installed in a new speed reducer, so as to solve the problem of the technician running a lot of useless roads due to the wrong specifications, and reduce the cost of preparing goods.

[0037] In some embodiments, as shown in Figure 5 and Figure 6 , a center seat 102 is arranged at the center of the upper casing 1. The threaded column 101 is coaxially arranged with the center seat 102, and the threaded column 101 is integrally connected with the center seat 102. A center hole 103 is arranged in the center seat 102. An upper oil-containing bearing 5 is installed in the center hole 103. The upper shaft 2 is arranged in the upper oil-containing bearing 5.

[0038] In some embodiments, as shown in Figures 3 to 5As shown, the upper shaft 2 is sleeved with an upper gasket 6 and a lower gasket 7 on both sides of the limiting flange 201, and under the pressure of the oil seal cover 3, the oil seal 4, the upper gasket 6, the limiting flange 201, the lower gasket 7 and the upper oil-containing bearing 5 are in turn abutted and locked.

[0039] In some embodiments, as shown in Figure 6 and Figure 7 The threaded column 101 is provided with an external threaded portion 104, and the oil seal cover 3 is provided with an internal threaded portion 301 matched with the external threaded portion 104; a plurality of anti-skid grooves 302 are annularly and equidistantly arranged on the outer wall of the oil seal cover 3, which can increase the friction and facilitate screwing.

[0040] In some embodiments, as shown in Figure 3 and Figure 4 Further comprising a lower housing 8 fixed on the lower side of the upper housing 1, the lower housing 8 is provided with a containing cavity 801, and the containing cavity 801 is installed with a planetary gear assembly 9, and the insertion end of the upper shaft 2 is engaged with the planetary gear assembly 9. The planetary gear assembly 9 is a prior art, and will not be described in detail in this embodiment. The upper housing 1 is provided with an upper annular connecting disc 105, and the lower housing 8 is provided with a lower annular connecting disc 802 opposite to the upper annular connecting disc 105, and the upper annular connecting disc 105 and the lower annular connecting disc 802 are fixedly connected through a plurality of annularly and equidistantly arranged fasteners, which can be fastening screws and fastening nuts matched to fasten the upper annular connecting disc 105 and the lower annular connecting disc 802.

[0041] In some embodiments, as shown in Figure 3 and Figure 4 Further comprising a belt pulley 14 sleeved on the lower side of the lower housing 8 and a lower shaft 10 inserted into the lower housing 8, one end of the lower shaft 10 is engaged with the planetary gear assembly 9. The lower shaft 10 is provided with a limiting protrusion 1001 at one end of the lower housing 8, and the limiting protrusion 1001 is abutted on the lower housing 8 to limit the lower shaft 10 from being separated from the lower housing 8; the lower housing 8 is provided with a through hole 803, and the through hole 803 is installed with a lower oil-containing bearing 11, and the lower shaft 10 is threaded through the lower oil-containing bearing 11. The lower shaft 10 is threaded through the belt pulley 14, and the lower end of the lower shaft 10 is installed with a spring gasket 12 and a fastening nut 13, and the fastening nut 13 is used to limit the belt pulley 14 from being separated from the lower shaft 10.

[0042] In the present specification, the same and similar parts among various embodiments can be referred to each other, and each embodiment focuses on the difference from other embodiments.

[0043] The above merely provides the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any changes or replacements within the technical scope disclosed by the present application can be easily conceived by the person skilled in the art, and should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A top shaft detachable universal washing machine reducer comprising a top housing (1) and a top shaft (2), characterized in that: The upper shaft (2) is detachably connected with the upper shell (1) through a disassembly structure, the disassembly structure comprises a threaded column (101) arranged on the upper shell (1) and extending towards the upper end, and an oil seal gland (3) threadedly connected with the threaded column (101), the upper shaft (2) is sleeved with an oil seal (4), and the upper shaft (2) is provided with a limiting flange (201) for limiting the oil seal (4); the upper shaft (2) is inserted into the threaded column (101), the oil seal gland (3) is sleeved outside the upper shaft (2) and is threadedly connected with the threaded column (101), so that the oil seal gland (3), the oil seal (4) and the upper shaft (2) are locked.

2. The top shaft detachable universal washing machine reducer according to claim 1, characterized in that: The center of the upper shell (1) is provided with a center seat (102), the threaded column (101) is coaxially arranged with the center seat (102) and is integrally connected with the center seat (102).

3. The top shaft detachable type universal washing machine decelerator according to claim 2, characterized in that: The center seat (102) is provided with a center hole (103), and an upper oil-containing bearing (5) is mounted in the center hole (103), and the upper shaft (2) penetrates through the upper oil-containing bearing (5).

4. The top shaft detachable type universal washing machine decelerator according to claim 3, characterized in that: The upper shaft (2) is sleeved with an upper gasket (6) and a lower gasket (7) on both sides of the limiting flange (201), and under the pressure of the oil seal gland (3), the oil seal (4), the upper gasket (6), the limiting flange (201), the lower gasket (7) and the upper oil-containing bearing (5) are locked in sequence.

5. The top shaft detachable universal washing machine reducer according to claim 1, characterized in that: The threaded column (101) is provided with an external thread portion (104), and the oil seal gland (3) is provided with an internal thread (301) matched with the external thread portion (104); a plurality of anti-skid grooves (302) are annularly and equidistantly arranged on the outer wall of the oil seal gland (3).

6. The top shaft detachable universal washing machine reducer according to claim 1, characterized in that: Further comprising a lower shell (8) fixed to the lower side of the upper shell (1), a containing cavity (801) is arranged in the lower shell (8), and a planetary gear assembly (9) is mounted in the containing cavity (801), and the insertion end of the upper shaft (2) is engaged with the planetary gear assembly (9).

7. The top shaft detachable type universal washing machine reducer according to claim 6, wherein: An upper annular connecting disc (105) is arranged on the upper shell (1), a lower annular connecting disc (802) opposite to the upper annular connecting disc (105) is arranged on the lower shell (8), and the upper annular connecting disc (105) and the lower annular connecting disc (802) are fixedly connected through a plurality of annularly and equidistantly arranged fasteners.

8. The top shaft detachable type universal washing machine decelerator according to claim 6, wherein: Further comprising a pulley (14) sleeved on the lower side of the lower shell (8) and a lower shaft (10) inserted into the lower shell (8), one end of the lower shaft (10) is engaged with the planetary gear assembly (9).

9. The top shaft detachable type universal washing machine decelerator according to claim 8, characterized in that: The lower shaft (10) is provided with a limiting protrusion (1001) at one end of the lower shell (8), the limiting protrusion (1001) is abutted on the lower shell (8) to limit the lower shaft (10) from being separated from the lower shell (8); a through hole (803) is arranged in the lower shell (8), and a lower oil-impregnated bearing (11) is mounted in the through hole (803), and the lower shaft (10) is arranged in the lower oil-impregnated bearing (11).

10. The top shaft detachable universal washing machine reducer according to claim 8, characterized in that: The lower shaft (10) is arranged in the belt pulley (14), and a spring washer (12) and a fastening nut (13) are mounted at the lower end of the lower shaft (10), so as to limit the belt pulley (14) from being separated from the lower shaft (10).

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