A water-saving washing machine deceleration clutch

Abstract

The invention discloses a deceleration clutch 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 are difficult to drain water, comprises a pulsator shaft, a dehydration shaft and a drainage shaft, the pulsator shaft is connected to the input shaft through a deceleration gear train arranged in a brake wheel, the brake wheel is fixed integrally with the dehydration shaft on the top, and is fixed integrally with the clutch shaft on the bottom, the clutch shaft is rotatably arranged outside the input shaft, an intermediate shaft is arranged between the clutch shaft and the input shaft, the deceleration gear train comprises an upper planetary gear, the upper planetary gear is rotatably mounted on the upper planetary frame, the upper inner gear ring is connected to the clutch shaft through the lower planetary frame, the inner side of the lower planetary gear on the lower planetary frame is meshed with the intermediate shaft gear at the upper end of the intermediate shaft, and the outer side is meshed with the lower inner gear ring, and the lower inner gear ring is connected to the drainage shaft; the washing, drainage and dehydration of the invention can be quickly and freely switched; drainage is easy, and the service life of the washing machine is improved.

Description

Technical Field

[0001] The invention relates to the technical field of water-saving washing machines, in particular to a speed reduction clutch for 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 deceleration clutch for a water-saving washing machine, which drives the impeller shaft, the drainage shaft and the dehydration shaft through a gear train deceleration to obtain the required power and rotation angle, and to wash, drain and dehydrate in time, and with the cooperation of the clutch sleeve at the input end, to quickly and freely switch between the three working conditions.

[0004] According to the above purpose, the technical solution of the present invention is: a water-saving washing machine deceleration clutch, including 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, the impeller shaft is connected to the input shaft through a deceleration gear train placed in the brake wheel, the upper part of the brake wheel is fixed to the dehydration shaft, the lower part of the brake wheel is fixed to the clutch shaft, the clutch shaft is rotatably placed outside the input shaft, an intermediate shaft is arranged between the clutch shaft and the input shaft, and a clutch sleeve for controlling the mutual conversion of washing, drainage and dehydration working conditions is arranged between the intermediate shaft and the clutch shaft and the input shaft.

[0005] Preferably, the reduction gear train includes an input shaft gear arranged at the top end of the input shaft, an upper inner gear ring placed around the input shaft gear, an upper planetary gear arranged between the input shaft gear and the inner gear ring, the inner side of the upper planetary gear is meshed with the input shaft gear, the outer side of the upper planetary gear is meshed with the upper inner gear ring, the upper planetary gear is rotatably mounted on the upper planetary carrier, the upper inner gear ring is connected to the clutch shaft through the lower planetary carrier, a rotatable lower planetary gear is provided on the lower planetary carrier, the inner side of the lower planetary gear is meshed with the intermediate shaft gear at the upper end of the intermediate shaft, the outer side of the lower planetary gear is meshed with the lower inner gear ring, and the lower inner gear ring is connected to the drainage shaft.

[0006] Furthermore, the impeller shaft is fixedly connected to the upper planetary frame, the drainage shaft is arranged between the impeller shaft and the dehydration shaft, and the drainage shaft can rotate relatively to the impeller shaft and the dehydration shaft.

[0007] Preferably, bearings for supporting lubrication and rotation are provided between the intermediate shaft and the input shaft and the clutch shaft.

[0008] Furthermore, bearings for supporting and lubricating rotation are provided between the drainage shaft, the impeller shaft and the dehydration shaft.

[0009] Preferably, the clutch shaft, dehydration shaft and / or brake wheel are movably connected to the housing via bearings and sealing rings.

[0010] A washing method for a water-saving washing machine. In the washing condition, under the action of a clutch sleeve, the intermediate shaft and the clutch shaft remain stationary, the input shaft drives the upper planetary frame to rotate, and the impeller shaft connected to the upper planetary frame obtains a reduced rotation to wash clothes, thereby realizing the washing condition.

[0011] Preferably, in the drainage condition, under the action of the clutch sleeve, the clutch shaft remains stationary, the intermediate shaft and the input shaft are connected as a whole, and when the input shaft obtains a short-term power rotation, it drives the upper planetary carrier to rotate and the lower inner gear ring to rotate in the opposite direction, and under the action of the reduction gear train, the drainage shaft obtains a decelerated and increased torque, which drives the drain plate to rotate, opens the drain valve to drain water, and realizes the drainage condition.

[0012] Furthermore, in the dehydration condition, under the action of the clutch sleeve, the clutch shaft, the intermediate shaft and the input shaft are connected as one. When the input shaft obtains a long-term power rotation, it drives the upper planetary carrier, the lower inner gear ring and the brake wheel to rotate together, and the dehydration shaft, the drainage shaft and the impeller shaft rotate at high speed together to realize the dehydration condition.

[0013] Preferably, after the dehydration condition is completed, the lower inner gear ring rotates an angle in the opposite direction to that during drainage to close the drainage holes on the drainage plate and the drainage holes on the flange.

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

[0015] 1. The technical solution of the present invention is adopted to drive the impeller shaft, the drainage shaft and the dehydration shaft through the gear train deceleration to obtain the required power and rotation angle, so as to carry out washing, drainage and dehydration in time, and with the cooperation of the clutch sleeve at the input end, the three working conditions can be quickly and freely switched;

[0016] 2. The technical solution of the present invention reduces the noise during the conversion of the washing, draining and dehydrating processes, and utilizes the gear train deceleration to increase the torque obtained on the drain shaft, making it easier to open the drain pan for drainage, thereby increasing the service life of the washing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the principle structure of the deceleration clutch of the water-saving washing machine of the present invention;

[0018] Figure 2 It is a schematic structural diagram of an embodiment of a speed reduction clutch for a water-saving washing machine of the present invention;

[0019] In the figure: 1. Input shaft; 2. Clutch shaft; 3. Brake wheel; 4. Dehydration shaft; 5. Drain shaft; 6. Pulsator shaft; 7. Drain pan; 8. Flange; 9. Housing; 10. Upper planet carrier; 11. Upper inner ring gear; 12. Lower inner ring gear; 13. Lower planet carrier; 14. Intermediate shaft; 15. Clutch sleeve. DETAILED DESCRIPTION

[0020] Combination Figure 1 , Figure 2 , is a schematic diagram of the principle structure of an embodiment of a water-saving washing machine deceleration clutch of the present invention, which includes a pulsator shaft 6 connected to the pulsator of the washing machine, a dehydration shaft 4 placed 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 placed between the pulsator shaft 6 and the dehydration shaft 4 and rotatable and connected to a drainage plate 7 for drainage, the pulsator shaft 6 is connected to the input shaft 1 through a deceleration gear train placed in a brake wheel 3, the upper part of the brake wheel 3 is fixed integrally with the dehydration shaft 4, the lower part of the brake wheel 3 is fixed integrally with the clutch shaft 2, the clutch shaft 2 is rotatably placed outside the input shaft 1, an intermediate shaft 14 is provided between the clutch shaft 2 and the input shaft 1, the deceleration gear train includes an input shaft gear arranged at the top of the input shaft 1, an upper inner gear ring 11 placed around the input shaft gear, and a gear placed between the input shaft gear and the upper inner gear ring 11 and meshing with the input shaft gear on the inside. The upper planetary gear meshes with the upper inner gear ring 11 on the outer side, and the upper planetary gear is rotatably installed on the upper planetary carrier 10. The upper inner gear ring 11 is connected to the clutch shaft 2 through the lower planetary carrier 13. The lower planetary carrier 13 is provided with a rotatable lower planetary gear, the inner side of the lower planetary gear meshes with the intermediate shaft gear at the upper end of the intermediate shaft 14, and the outer side of the lower planetary gear meshes with the lower inner gear ring 12, and the lower inner gear ring 12 is connected to the drainage shaft 5; bearings supporting lubrication rotation are provided between the intermediate shaft 14 and the input shaft 1 and the clutch shaft 2; bearings supporting lubrication rotation are provided between the drainage shaft 5 and the impeller shaft 6 and the dehydration shaft 4; the clutch shaft 2, the dehydration shaft 4 and / or the brake wheel 3 are movably connected to the housing 9 through bearings and sealing rings; a clutch sleeve 15 for controlling the mutual conversion of washing, drainage and dehydration working conditions is provided between the intermediate shaft 14 and the clutch shaft 2 and the input shaft 1.

[0021] The clutch sleeve 15 is composed of an inner part and an outer part, which are connected as a whole so as to be radially rotatable with each other. The inner part is axially slidably mounted on the intermediate shaft 14, and the outer part is axially slidably mounted on the clutch shaft 2.

[0022] The clutch sleeve 15 has three positions, upper, middle and lower. The initial position is at the upper gear position (as shown in the figure). At this time, the outer part of the clutch sleeve 15 is engaged with the housing 9 and remains stationary, that is, the clutch shaft 2 remains stationary, and the inner part of the clutch sleeve 15 connected to the intermediate shaft also remains stationary under the action of external force. The input shaft 1 is separated from the clutch sleeve 15. This is the connection state of the clutch sleeve 15 during the washing condition.

[0023] When the clutch sleeve 15 moves downward to the mid-range position under the action of external force, the outer part of the clutch sleeve 15 is still in meshing with the shell 9 and remains stationary, but the inner part moves downward to combine with the input shaft 1. Since the inner and outer parts of the clutch sleeve can rotate relative to each other, under the action of the computer board program, the input shaft 1 and the intermediate shaft 14 rotate at the same time, and the drain shaft 5 is driven to rotate at an angle under the action of the gear train. At this time, the drain pan 7 and the flange 8 rotate at a relative angle to fully open the drain hole. This is the connection state of the clutch sleeve during the drainage condition.

[0024] When the clutch sleeve 15 is subjected to external force and slides downward to the lower position, its inner part is fully engaged with the input shaft 1, and its outer part is separated from the housing 9, connecting the clutch shaft 2, the intermediate shaft 14 and the input shaft 1 as a whole, which is the connection state during dehydration. When dehydration is completed, the clutch sleeve 15 returns to the middle position under the action of external force, and the outer part of the clutch sleeve 15 is engaged with the housing 9 and remains stationary, but its inner part is still combined with the input shaft 1. Since the inner and outer parts of the clutch sleeve can rotate relative to each other, under the action of the computer board program, the input shaft 1 and the intermediate shaft 14 rotate in opposite directions at the same time by an angle, and under the action of the gear train, the drain shaft 5 is driven to rotate by an angle, and at this time, the drain pan 7 and the flange 8 rotate relative to each other by an angle to completely close the drain hole, which is the connection state when the drain hole is closed.

[0025] When the clutch sleeve 15 returns to the initial position under the action of external force, the outer part of the clutch sleeve 15 is fully engaged with the housing 9 and remains stationary, and the inner part is completely separated from the input shaft 1, returning to the connection state during the washing condition.

[0026] In washing mode: under the action of the clutch sleeve 15, the intermediate shaft 14 and the clutch shaft 2 remain stationary, the input shaft 1 drives the upper planetary carrier 10 to rotate, and the pulsator shaft 6 connected to the upper planetary carrier 10 obtains a reduced speed rotation to wash the clothes;

[0027] In drainage condition: under the action of clutch sleeve 15, clutch shaft 2 remains stationary, intermediate shaft 14 and input shaft 1 are connected as one, when input shaft 1 obtains a short-term power rotation, it drives upper planet carrier 10 to rotate and lower inner gear ring 12 to rotate in the opposite direction, under the action of reduction gear train, drainage shaft 5 obtains deceleration torque, drives drainage pan 7 to rotate, drainage hole on drainage pan 7 is connected with drainage hole on flange 8, and drainage valve is opened to drain water;

[0028] In dehydration condition: under the action of the clutch sleeve 15, the clutch shaft 2, the intermediate shaft 14 and the input shaft 1 are connected as a whole. When the input shaft 1 obtains a long-term power rotation, it drives the upper planetary carrier 10 to rotate, and the lower inner gear ring 12 and the brake wheel 3 to rotate together. In this way, the dehydration shaft 4, the drainage shaft 5 and the impeller shaft rotate at high speed together to dehydrate;

[0029] On the contrary, after dehydration, the lower inner gear ring 12 rotates by an angle in the opposite direction to that during drainage, closing the drain pan 7 and closing the drain holes on the drain pan 7 and the drain holes on the flange 8.

[0030] The water-saving washing machine deceleration clutch provided by the present invention is introduced in detail above. The principle and implementation mode of the present invention are described in detail by using specific examples in this article. The description of the above embodiments is only used to help understand the method and core idea 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 principle of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A water-saving washing machine deceleration clutch, 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 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 to the dehydration shaft (4) as a whole; the lower part of the brake wheel (3) is fixed to the clutch shaft (2) as a whole; the clutch shaft (2) is rotatably placed outside the input shaft (1); an intermediate shaft (14) is provided between the clutch shaft (2) and the input shaft (1); a clutch sleeve (15) for controlling the mutual conversion of washing, drainage and dehydration working conditions is provided between the intermediate shaft (14) and the clutch shaft (2) and the input shaft (1); The reduction gear train comprises an input shaft gear arranged at the top of the input shaft (1), an upper inner gear ring (11) arranged around the input shaft gear, an upper planetary gear arranged between the input shaft gear and the inner gear ring (11), the inner side of the upper planetary gear meshing with the input shaft gear, the outer side of the upper planetary gear meshing with the upper inner gear ring (11), the upper planetary gear rotatably mounted on the upper planetary carrier (10), the upper inner gear ring (11) connected to the clutch shaft (2) through the lower planetary carrier (13), the lower planetary carrier (13) is provided with a movable and rotatable lower planetary gear, the inner side of the lower planetary gear meshing with the intermediate shaft gear at the upper end of the intermediate shaft (14), the outer side of the lower planetary gear meshing with the lower inner gear ring (12), and the lower inner gear ring (12) is connected to the drainage shaft (5); The clutch sleeve (15) is composed of an inner part and an outer part, which are connected as a whole so as to be radially rotatable with each other. The inner part is axially slidably mounted on the intermediate shaft (14), and the outer part is axially slidably mounted on the clutch shaft (2). The clutch sleeve (15) has three positions, namely, upper, middle and lower. When in the upper gear position, the outer part of the clutch sleeve (15) is meshed with the housing (9) and remains stationary. Under the action of external force, the inner part of the clutch sleeve (15) connected to the intermediate shaft also remains stationary. The input shaft (1) is separated from the clutch sleeve (15). When in the middle gear position, the outer part of the clutch sleeve (15) is still meshed with the housing (9) and remains stationary, but the inner part moves downward to be combined with the input shaft (1). The input shaft (1) is connected to the intermediate shaft (14) as a whole. When in the lower gear position, the inner part is completely meshed with the input shaft (1), and the outer part is separated from the housing (9). The clutch shaft (2), the intermediate shaft (14) and the input shaft (1) are connected as a whole.

2. A water-saving washing machine deceleration clutch according to claim 1, characterized in that: The impeller shaft (6) is fixedly connected to the upper planetary frame (10), the drainage shaft (5) is arranged between the impeller shaft (6) and the dehydration shaft (4), and the drainage shaft (5) can be movably rotated relative to the impeller shaft (6) and the dehydration shaft (4).

3. The water-saving washing machine deceleration clutch according to claim 1, characterized in that: Bearings for supporting and lubricating rotation are provided between the intermediate shaft (14) and the input shaft (1) and the clutch shaft (2).

4. The water-saving washing machine deceleration clutch according to claim 1, characterized in that: Bearings for supporting lubrication and rotation are provided between the drainage shaft (5), the impeller shaft (6) and the dehydration shaft (4).

5. The water-saving washing machine deceleration clutch according to claim 1, characterized in that: The clutch shaft (2), the dehydration shaft (4) and / or the brake wheel (3) are movably connected to the housing (9) via bearings and sealing rings.

6. A washing method of a water-saving washing machine, comprising the water-saving washing machine deceleration clutch according to any one of claims 1 to 5, characterized in that: In the washing operation, under the action of the clutch sleeve (15), the intermediate shaft (14) and the clutch shaft (2) remain stationary, the input shaft (1) drives the upper planetary frame (10) to rotate, and the impeller shaft (6) connected to the upper planetary frame (10) obtains a reduced speed rotation to wash the clothes, thereby realizing the washing operation.

7. The washing method of a water-saving washing machine according to claim 6, characterized in that: In the drainage condition, under the action of the clutch sleeve (15), the clutch shaft (2) remains stationary, the intermediate shaft (14) and the input shaft (1) are connected as a whole, and when the input shaft (1) obtains a short-term power rotation, it drives the upper planetary carrier (10) to rotate and the lower inner gear ring (12) to rotate in the opposite direction. Under the action of the reduction gear train, the drainage shaft (5) obtains a torque that is increased by deceleration, drives the drainage plate (7) to rotate, opens the drainage valve to drain water, and realizes the drainage condition.

8. The washing method of a water-saving washing machine according to claim 7, characterized in that: In the dehydration working condition, under the action of the clutch sleeve (15), the clutch shaft (2), the intermediate shaft (14) and the input shaft (1) are connected as a whole. When the input shaft (1) obtains a long period of power rotation, it drives the upper planetary carrier (10) to rotate, the lower inner gear ring (12) and the brake wheel (3) to rotate together, and the dehydration shaft (4), the drainage shaft (5) and the impeller shaft (6) to rotate at high speed, thereby realizing the dehydration working condition.

9. The washing method of a water-saving washing machine according to claim 8, characterized in that: After the dehydration operation is completed, the lower inner gear ring (12) rotates at an angle in the opposite direction to that during drainage, thereby closing the drainage holes on the drainage plate (7) and the drainage holes on the flange (8).

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