A water-saving washing machine dual clutch device

Abstract

The present invention discloses a dual clutch device for a water-saving washing machine, relates to the technical field of water-saving washing machines, overcomes the defect that the existing water-saving washing machines cannot drain water, comprises a pulsator shaft, a dehydration shaft and a drainage shaft, a sector tooth meshing pair is provided between the drainage shaft and the dehydration shaft, an upper clutch sleeve which can be meshed with a shell body as a whole and can also be separated is provided on the dehydration shaft, the pulsator shaft is connected with an input shaft through a reduction gear system arranged in a brake wheel, the brake wheel is fixed with the drainage shaft as a whole on the upper side and fixed with the clutch shaft as a whole on the lower side, the clutch shaft is rotatably arranged outside the input shaft, an axially sliding lower clutch sleeve is provided on the clutch shaft, the lower clutch sleeve can be meshed with the shell body when moving upward and can be meshed with the input shaft when moving downward, and the lower clutch sleeve is in a separated state from the shell body and the input shaft when in a neutral position; the present invention can easily open a drainage tray for drainage; improves the service life of the water-saving washing machine; and can automatically operate the washing machine for convenient control.

Description

Technical Field

[0001] The invention relates to the technical field of water-saving washing machines, and in particular to a clutch device of a water-saving washing machine. Background Art

[0002] The existing water-saving washing machine needs to discharge the sewage in the washing tub after washing. However, after washing, the clothes will entangle the impeller and the washing tub together. When draining, it is necessary to open the water sealing plate on the bottom of the washing tub. The water sealing plate is controlled to open by the drainage shaft connected to it. Since the input part needs to control the rotation of the impeller shaft connected to the impeller when controlling the drainage shaft, the required torque is large, and the impeller shaft is subject to great resistance from the impeller. In addition, the power controlling the drainage shaft and the impeller shaft is directly transmitted by the input end, and the power cannot be amplified by the reduction gear train, resulting in the inability to drain. It is necessary to take out the clothes first, which is not only troublesome, laborious, but also cannot realize automatic control. This is a technical problem that we urgently need to solve. Summary of the invention

[0003] The purpose of the present invention is to provide a dual clutch device for a water-saving washing machine, which amplifies the input torque through a reduction gear train to open the drain pan to overcome the above-mentioned defects.

[0004] According to the above purpose, the technical solution of the present invention is: a dual clutch device of a water-saving washing machine, comprising a impeller shaft connected to the impeller of the washing machine, a dehydration shaft placed outside the impeller shaft and connected to the flange of the water-saving washing barrel of the washing machine, a drainage shaft is arranged on the outside of the impeller shaft, the drainage shaft is connected to the drainage plate, an upper clutch sleeve is provided on the dehydration shaft, the upper clutch sleeve is configured to mesh the dehydration shaft with the shell as a whole or separate, the upper part of the brake wheel is fixed as a whole with the drainage shaft, the lower part of the brake wheel is fixed as a whole with the clutch shaft, the clutch shaft is rotatably placed outside the input shaft, the clutch shaft is provided with an axially sliding lower clutch sleeve, the lower clutch sleeve is configured to connect or disconnect the clutch shaft, the shell, and the input shaft with each other.

[0005] Preferably, the impeller shaft is connected to the input shaft via a reduction gear train disposed in a brake wheel, and the drainage shaft is disposed between the impeller shaft and the dehydration shaft, and the drainage shaft can flexibly rotate relative to the impeller shaft.

[0006] Furthermore, a sector-shaped tooth meshing pair is provided between the drainage shaft and the dehydration shaft, and the sector-shaped tooth meshing pair is configured to mesh or separate the dehydration shaft and the drainage shaft through an upper clutch sleeve.

[0007] Preferably, the meshing angle of the sector tooth meshing pair is 30-120 degrees.

[0008] Furthermore, the reduction gear system is provided with a planetary carrier and an inner gear ring, the planetary carrier is connected to the impeller shaft, the inner gear ring is fixedly mounted on the brake wheel and / or the clutch shaft, the inner gear ring is meshed with the planetary gear, the planetary gear is movably mounted on the planetary carrier, and the planetary gear is meshed with the input shaft gear located at the top end of the input shaft.

[0009] Preferably, the upper clutch sleeve is connected to the dehydration shaft through an axial sliding fit, and the upper clutch sleeve is connected to the housing through an end face clutch fit.

[0010] Furthermore, the lower clutch sleeve is connected to the clutch shaft and the input shaft through axial sliding fit, and the lower clutch sleeve is connected to the housing through end face clutch fit.

[0011] A washing method of a water-saving washing machine with a dual clutch device comprises an upper clutch sleeve matched with a dehydration shaft and a lower clutch sleeve matched with the clutch shaft. In a washing state, the upper clutch sleeve and the lower clutch sleeve move upward and engage with a shell body as a whole under the action of an external control component and are in an upper position. The dehydration shaft meshing with the upper clutch sleeve is also fixed, and a brake wheel and a drainage shaft are also fixed. The power of the input shaft drives the impeller shaft to rotate to wash clothes after passing through a reduction gear train.

[0012] Preferably, under the drainage condition, the upper clutch sleeve is in the upper position, the dehydration shaft is fixed, and the lower clutch sleeve is in the middle position. The drainage shaft connected to the clutch shaft and the brake wheel can rotate, and the impeller shaft can also rotate. An input shaft gear of the planetary gear system, two planetary carriers output after deceleration, and the inner ring gear are released at the same time. When the input shaft rotates, the impeller shaft is blocked by the pressure of the clothes on the impeller, and the drainage shaft connected to the clutch shaft and the brake wheel rotates passively under the action of the inner ring gear, causing the drainage plate connected to the drainage shaft to rotate, and the drainage holes on the drainage plate are connected to the drainage holes on the flange to achieve the drainage condition.

[0013] Furthermore, under the dehydration condition, the upper clutch sleeve and the lower clutch sleeve move downward to the lower position under the action of the external control component, the dehydration shaft is separated from the shell, and the dehydration shaft is meshed with the drainage shaft as a whole under the action of the fan-shaped tooth meshing pair, the clutch shaft is connected to the input shaft as a whole, and the entire brake wheel rotates together for high-speed centrifugal dehydration; conversely, when switching from the dehydration state to the washing state, the drain outlet is closed to achieve the conversion of the working condition.

[0014] Compared with the prior art, the advantages and beneficial effects of the present invention are:

[0015] 1. The present invention eliminates the resistance of the clothes on the impeller by operating the upper clutch sleeve arranged on the dehydration shaft and the lower clutch sleeve arranged on the clutch shaft in the upper and lower gear positions, and easily opens the drain pan connected to the drain shaft to drain water;

[0016] 2. The product of the present invention can increase the rotation torque by reducing the speed of the reduction gear train, which can greatly improve the driving force on the drainage shaft, greatly improve the rotation flexibility of the drainage plate, and greatly increase the service life of the water-saving washing machine;

[0017] 3. The product of the present invention realizes the automatic rotation and drainage of the water-saving washing machine drain pan, and can automatically operate the washing machine for convenient control. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work:

[0019] Figure 1 It is a schematic diagram of the principle structure of an embodiment of the product of the present invention;

[0020] Figure 2 It is a perspective structural diagram of an embodiment of the product of the present invention;

[0021] Among them: 1. Input shaft; 2. Clutch shaft; 3. Brake wheel; 4. Dehydration shaft; 5. Drainage shaft; 6. Impeller shaft; 7. Drainage plate; 8. Flange; 9. Housing; 10. Upper clutch sleeve; 11. Planet carrier; 12. Inner gear ring; 13. Lower clutch sleeve; 14. Sector tooth meshing pair. DETAILED DESCRIPTION

[0022] Combination Figure 1-Figure 2, is a schematic structural diagram of an embodiment of a dual clutch device for a water-saving washing machine of the present invention, which includes a pulsator shaft 6 connected to the pulsator of the washing machine, a dehydration shaft 4 disposed outside the pulsator shaft 6 and connected to the flange 8 of the water-saving washing barrel of the washing machine, a drainage shaft 5 movably rotatable between the pulsator shaft 6 and the dehydration shaft 4 and connected to a drainage plate 7 for drainage, a sector-shaped tooth meshing pair 14 is provided between the drainage shaft 5 and the dehydration shaft 4, and the sector-shaped tooth meshing pair 14 is configured to mesh or separate the dehydration shaft 4 and the drainage shaft 5 through the upper clutch sleeve 10 The dehydration shaft 4 is provided with an upper clutch sleeve 10 which can be meshed with the housing 9 as a whole and can also be separated. The impeller shaft 6 is connected to the input shaft 1 through a reduction gear train placed in the brake wheel 3. The upper part of the brake wheel 3 is fixed with the drainage shaft 5 as a whole, and the lower part of the brake wheel 3 is fixed with the clutch shaft 2 as a whole. The clutch shaft 2 is rotatably placed outside the input shaft 1. The clutch shaft 2 is provided with an axially sliding lower clutch sleeve 13. The lower clutch sleeve 13 is configured to connect the clutch shaft 2, the housing 9, and the input shaft 1. The lower clutch sleeve 13 can be connected or disconnected with each other, the upper movement can be meshed with the housing 9 and the lower movement can be meshed with the input shaft 1. When the lower clutch sleeve 13 is in the middle position, it is separated from the housing 9 and the input shaft 1. The meshing angle of the sector tooth meshing pair 14 is 30-120 degrees, preferably 45-90 degrees. The reduction gear system is provided with a planet carrier 11 and an inner gear ring 12, the planet carrier 11 is connected to the impeller shaft 6, and the inner gear ring 12 is fixedly mounted on the brake wheel 3 and / or the clutch shaft 2. The inner gear ring 12 is meshed with the planetary gear, the planetary gear is movably mounted on the planetary carrier 11, and the planetary gear is meshed with the input shaft gear disposed at the top of the input shaft 1; the upper clutch sleeve 10 is connected to the dehydration shaft 4 by an axial sliding fit, and the upper clutch sleeve 10 is connected to the housing 9 by an end face clutch fit; the lower clutch sleeve 13 is connected to the clutch shaft 2 and the input shaft by an axial sliding fit, and the lower clutch sleeve 10 is connected to the housing 9 by an end face clutch fit.

[0023] In the washing state, the upper clutch sleeve 10 and the lower clutch sleeve 13 move upward and engage with the shell 9 as a whole under the action of the external control component, and are in the upper position. The dehydration shaft 4 meshing with the upper clutch sleeve 10 is also fixed, and the brake wheel 3 and the drainage shaft 5 are also fixed. The power of the input shaft 1 passes through the reduction gear system and drives the impeller shaft 6 to rotate to wash clothes.

[0024] In the drainage state, the upper clutch sleeve 10 is in the upper position, the dehydration shaft 4 is fixed, the lower clutch sleeve 13 is in the middle position, the drainage shaft 5 connected with the clutch shaft and the brake wheel 3 is rotatable, the impeller shaft 6 is also released, and an input shaft gear of the planetary gear system, two planetary carriers 11 output after deceleration, and the inner ring gear 12 are released at the same time, which is three degrees of freedom. Due to the pressure of the clothes on the impeller connected to the impeller shaft 6, the impeller shaft 6 is blocked. When the input shaft 1 rotates, the drainage shaft 5 connected with the clutch shaft 2 and the brake wheel 3 rotates passively under the action of the inner ring gear 12, and obtains an increased torque corresponding to the gear system reduction ratio, so that the drainage plate 7 connected with the drainage shaft 5 rotates, and the drainage holes on the drainage plate 7 are connected with the drainage holes on the flange 8 to drain water.

[0025] In the dehydration state, the upper clutch sleeve 10 and the lower clutch sleeve 13 move downward to the lower position under the action of the external control component, the dehydration shaft 4 is released, the dehydration shaft 4 is separated from the shell 9, and the dehydration shaft 4 is meshed with the drainage shaft 5 as a whole under the action of the sector tooth meshing pair 14. The clutch shaft 2 is connected to the input shaft 1 as a whole, and the others rotate synchronously. The entire brake wheel 3 rotates together for high-speed centrifugal dehydration.

[0026] On the contrary, when switching from the dehydration state to the washing state, the drain port of the washing machine is closed, including closing the drain port of the washing machine and / or closing the drain hole on the drain pan 7 and the drain hole on the flange 8 in a non-conductive manner, so that the washing tub can store water and realize the switching of working conditions.

[0027] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the methods and core ideas of the present invention. It should be pointed out that for ordinary technicians in this field, several improvements and modifications can be made to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A dual clutch device for a water-saving washing machine, comprising a pulsator shaft (6) connected to a pulsator of the washing machine, a dehydration shaft (4) disposed outside the pulsator shaft (6) and connected to a flange (8) of a water-saving washing tub of the washing machine, a drainage shaft (5) disposed outside the pulsator shaft (6), the drainage shaft (5) being connected to a drainage pan (7), characterized in that: The dehydration shaft (4) is provided with an upper clutch sleeve (10), and the upper clutch sleeve (10) is configured to mesh the dehydration shaft (4) with the housing (9) to form a whole or separate the two. The upper part of the brake wheel (3) is fixed to the drainage shaft (5), and the lower part of the brake wheel (3) is fixed to the clutch shaft (2). The clutch shaft (2) is rotatably arranged outside the input shaft (1). The clutch shaft (2) is provided with an axially sliding lower clutch sleeve (13), and the lower clutch sleeve (13) is configured to connect or disconnect the clutch shaft (2), the housing (9), and the input shaft (1) to each other. The impeller shaft (6) is connected to the input shaft (1) via a reduction gear train disposed in the brake wheel (3); the drainage shaft (5) is disposed between the impeller shaft (6) and the dehydration shaft (4); and the drainage shaft (5) is capable of movably rotating relative to the impeller shaft (6); A sector-shaped tooth meshing pair (14) is provided between the drainage shaft (5) and the dehydration shaft (4), and the sector-shaped tooth meshing pair (14) is configured to mesh or separate the dehydration shaft (4) and the drainage shaft (5) through an upper clutch sleeve (10); Wherein, the lower clutch sleeve (13) moves upward under the action of the external control component to be integrated with the housing (9) and is in an upper position; The lower clutch sleeve (13) is in the middle position, the drainage shaft (5) connected with the clutch shaft and the brake wheel (3) can rotate, and the impeller shaft (6) is also released; The lower clutch sleeve (13) moves downward to the lower position under the action of the external control component, the dehydration shaft (4) is released, the dehydration shaft (4) is separated from the housing (9), the dehydration shaft (4) is meshed with the drainage shaft (5) under the action of the sector tooth meshing pair (14), and the clutch shaft (2) is connected to the input shaft (1) as a whole.

2. The dual clutch device for a water-saving washing machine according to claim 1, characterized in that: The meshing angle of the sector-shaped tooth meshing pair (14) is 30-120 degrees.

3. The dual clutch device for a water-saving washing machine according to claim 1, characterized in that: The reduction gear train is provided with a planet carrier (11) and an inner gear ring (12), wherein the planet carrier (11) is connected to the impeller shaft (6), the inner gear ring (12) is fixedly mounted on the brake wheel (3) and / or the clutch shaft (2), the inner gear ring (12) is meshed with the planetary gear, the planetary gear is movably mounted on the planet carrier (11), and the planetary gear is meshed with the input shaft gear disposed at the top end of the input shaft (1).

4. The dual clutch device for a water-saving washing machine according to claim 1, characterized in that: The upper clutch sleeve (10) is connected to the dehydration shaft (4) by axial sliding fit, and the upper clutch sleeve (10) is connected to the housing by end face clutch fit.

5. The dual clutch device for a water-saving washing machine according to claim 1, characterized in that: The lower clutch sleeve (13) is connected to the clutch shaft (2) and the input shaft (1) through axial sliding fit, and the lower clutch sleeve (10) is connected to the housing (9) through end face clutch fit.

6. A washing method for a water-saving washing machine with a dual clutch device, characterized in that: A dual clutch device for a water-saving washing machine as claimed in any one of claims 1 to 5, comprising an upper clutch sleeve (10) matched with a dehydration shaft (4) and a lower clutch sleeve (13) matched with a clutch shaft (2). In a washing state, the upper clutch sleeve (10) and the lower clutch sleeve (13) move upward under the action of an external control component to engage with a housing (9) as a whole and are in an upper position. The dehydration shaft (4) meshed with the upper clutch sleeve (10) is also fixed, and the brake wheel (3) and the drainage shaft (5) are also fixed. The power of the input shaft (1) drives the impeller shaft (6) to rotate and wash clothes after passing through a reduction gear train.

7. A washing method for a water-saving washing machine with a dual clutch device according to claim 6, characterized in that: In the drainage working condition, the upper clutch sleeve (10) is in the upper position, the dehydration shaft (4) is fixed, the lower clutch sleeve (13) is in the middle position, the drainage shaft (5) connected to the clutch shaft (2) and the brake wheel (3) can rotate, the impeller shaft (6) can also rotate, and an input shaft gear of the planetary gear train, two planetary carriers (11) output after speed reduction, and the inner gear ring (12) are released at the same time. When the input shaft (1) rotates, the impeller shaft (6) is blocked under the pressure of the clothes on the impeller, and the drainage shaft (5) connected to the clutch shaft (2) and the brake wheel (3) is passively rotated under the action of the inner gear ring (12), so that the drainage plate (7) connected to the drainage shaft (5) rotates, and the drainage hole on the drainage plate (7) is connected to the drainage hole on the flange (8), thereby realizing the drainage working condition.

8. The washing method of the dual clutch device of a water-saving washing machine according to claim 6, characterized in that: In the dehydration working condition, the upper clutch sleeve (10) and the lower clutch sleeve (13) are moved downward to the lower position under the action of the external control component, the dehydration shaft (4) is separated from the housing (9), the dehydration shaft (4) is meshed with the drainage shaft (5) under the action of the sector tooth meshing pair (14), the clutch shaft (2) is connected with the input shaft (1) as a whole, and the entire brake wheel (3) rotates together to perform high-speed centrifugal dehydration; conversely, when switching from the dehydration state to the washing state, the drainage port is closed to achieve the conversion of the working condition.

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