CN201268791Y - Bidirectional deceleration clutch of washing machine - Google Patents

Abstract

The utility model discloses a two-way deceleration clutch for a washing machine. Two or more planetary gears are installed on the frame of the planetary gear transmission mechanism in the inner chamber of the brake wheel. The inner ring gear set on the upper side is meshed, and the upper and lower sun gears are meshed on the inner side; the fixed clutch common shaft is sleeved on the outside of the input shaft, and a clutch control mechanism is arranged between the two, and the input shaft The upper end is connected to the lower sun gear, the upper end of the fixed clutch common shaft is connected to the frame, the lower end of the pulsator shaft is connected to the upper sun gear, and its upper end passes through the upper end surface of the brake wheel; The dehydration and washing brake shaft is sleeved on the outside of the fixed clutch common shaft, and its upper end is connected with the lower end surface of the brake wheel. The utility model has forward and reverse functions, improves the washing effect, reduces the washing time, reduces the wear and tear of washing clothes, saves electricity and water, and has good economic benefits.

Description

Two-way washing machine deceleration clutch

Technical field:

The utility model relates to a deceleration clutch, in particular to a two-way deceleration clutch for a washing machine, which belongs to the technical field of washing machines.

Background technique:

In the prior art, the dual power clutch of the washing machine includes an input shaft, a dehydration shaft and a pulsator shaft. The input shaft and the clutch shaft are tightly wrapped by a clutch spring controlled by a ratchet wheel. The input shaft and the planetary gear mesh and rotate. The upper and lower parts are inserted into the center hole of the sun gear and fixed, the clutch shaft is connected with the planet carrier, the inner ring gear meshed with the planetary gear is connected with the dehydration shaft through a rotating shaft, and the dehydration shaft is pressed on the bearing in the inner hole of the brake wheel Inside.

The above structure has the following disadvantages: one is that the dehydration shaft and the brake wheel are fixedly connected by bearings. Although this structure solves the rotation problem during dehydration and washing, the dehydration shaft is fixed on the deceleration clutch because the inner bucket of the pulsator type washing machine is fixed on the dehydration shaft. During dehydration and washing work, the clutch drives the inner tub to rotate through the cantilever support of the bearing. Due to the large swing of the laundry tub in reverse rotation, it is easy to cause uneven stress on the bearing and loosen the bearing, increase noise, and the water seal is easy to leak water, and then Cause the bearing to rust and the washing machine cannot work. The second is that the lower end of the dehydration shaft is connected with the rotating disc in the motor wheel. The input shaft and the pulsator shaft are connected up and down in the center hole of the sun gear and fixed. The coaxial errors caused by product processing and assembly are concentrated on this shaft, and there is a slight error. The life of the clutch will be greatly reduced.

Utility model content:

The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art, and provide a two-way deceleration clutch for washing machines with reasonable design, forward and reverse rotation and improved washing effect.

The technical scheme of the utility model is: a two-way washing machine deceleration clutch, including an input shaft (1), a fixed clutch shared shaft (2), a dehydration washing brake shaft (3), a brake wheel (9) and a pulsator shaft (4 ), the inner cavity of the brake wheel (9) is provided with a planetary gear transmission mechanism, two or more planetary gears (6) are installed on the frame (8) of the planetary gear transmission mechanism, and the planetary gears (6 ) on the outer side meshes with the inner ring gear set on the inner surface of the brake wheel (9), and its inner side meshes with two upper and lower sun gears (7, 5) respectively; the fixed clutch shared shaft (2) is sleeved on the The outside of the input shaft (1), and a clutch control mechanism (10) is arranged between the two, the upper end of the input shaft (1) is connected with the lower sun gear (5), and the fixed clutch common shaft (2 ) upper end is connected with the frame (8), the lower end of the pulsator shaft (4) is connected with the upper sun gear (7), and its upper end passes through the upper end surface of the brake wheel (9); the dehydration washing The brake shaft (3) is sleeved on the outside of the fixed clutch common shaft (2), and its upper end is connected with the lower end surface of the brake wheel (9).

A belt pulley (12) is installed at the lower end of the input shaft (1), and an electromagnetic clutch brake mechanism (11) is arranged on the outer surface of the brake wheel (9).

The planetary gear (6) is a duplex gear, the upper tooth diameter is smaller than the lower tooth diameter, and the tooth diameters of the upper and lower sun gears (7, 5) are respectively matched with the upper and lower tooth diameters of the planetary gear (6) .

The lower end of the pulsator shaft (4) is connected with the upper sun gear (7) through a key and a keyway, and the upper end of the input shaft (1) is connected with the lower sun gear (5) through a key and a keyway.

The upper end surface of the brake wheel (9) is provided with a positioning bushing, and the output shaft (4) passes through the positioning bushing.

The positive beneficial effect of the utility model is:

1. The utility model effectively solves the drawbacks of the prior art that the bearing connection between the dehydration shaft and the brake wheel is not strong and the coaxial error caused by processing and assembly.

2. The utility model has forward and reverse functions, which improves the washing effect, reduces the washing time, reduces the wear and tear of the laundry, and also achieves energy-saving effects such as electricity saving and water saving.

3. The utility model has a wide range of applications, and is especially suitable for fully automatic washing machines. It has stable rotation, low noise, is easy to popularize and implement, and has good economic benefits.

Description of drawings:

Fig. 1 is a structural schematic diagram of a deceleration clutch of a two-way washing machine.

Detailed ways:

Embodiment: Referring to Fig. 1, in the figure, the two-way washing machine deceleration clutch includes input shaft 1, fixed clutch common shaft 2, dehydration washing brake shaft 3, brake wheel 9 and pulsator shaft 4, and the brake wheel (9) in the cavity A planetary gear transmission mechanism is provided, and two planetary gears 6 are installed on the frame 8 of the planetary gear transmission mechanism. The two sun gears 7 and 5 are meshed; the fixed clutch common shaft 2 is set outside the input shaft 1, and a clutch control mechanism 10 is arranged between them, the upper end of the input shaft 1 is connected with the lower sun gear 5, and the fixed clutch common shaft 2. The upper end is connected with the frame 8, the lower end of the pulsator shaft 4 is connected with the upper sun gear 7, and its upper end passes through the upper end surface of the brake wheel 9; The lower end face of the moving wheel 9 is connected.

The lower end of the input shaft 1 is provided with a pulley 12, and the outer surface of the brake wheel 9 is provided with an electromagnetic clutch brake mechanism 11. The planetary gear 6 is a duplex gear, and its upper tooth diameter is smaller than the lower tooth diameter, and the tooth diameters of the upper and lower sun gears 7, 5 are matched with the upper and lower tooth diameters of the planetary gear 6 respectively.

The lower end of the pulsator shaft 4 is connected with the upper sun gear 7 through a key and a keyway, and the upper end of the input shaft 1 is connected with the lower sun gear 5 through a key and a keyway. The upper end surface of the brake wheel 9 is provided with a positioning bushing, and the output shaft 4 passes through the positioning bushing.

The concrete work process of the present utility model is as follows:

1. When washing: the clutch control mechanism 10 does not operate, the fixed clutch shared shaft 2 and the frame 8 do not rotate, the electromagnetic clutch brake mechanism 11 is engaged, the braking effect of the dehydration washing brake shaft 3 is released, and the motor drives the pulley 12 through the belt Rotate, so that the input shaft 1 rotates, and then the planetary gear 6 and the pulsator shaft 4 rotate. At this time, the planetary gear 6 only rotates but does not revolve. Due to the effect of the inner ring gear, the planetary gear 6 drives the brake wheel 9 to rotate, so The dehydration and washing braking shaft 3 rotates, and the rotation direction of the dehydration and washing braking shaft 3 is opposite to that of the pulsator shaft 4, which improves the washing effect.

2. During dehydration: the clutch control mechanism 10 operates, and the fixed clutch shared shaft 2 and the input shaft 1 are locked tightly, and the two rotate together, and the frame 8 also rotates accordingly. At this time, the planetary gear 6 only revolves but does not rotate. The effect of the ring gear, the planetary gear 6 drives the brake wheel 9 to rotate, so that the dehydration and washing brake shaft 3 rotates, and the rotation direction of the dehydration and washing brake shaft 3 is the same as that of the pulsator shaft 4, which improves the dehydration speed.

The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the utility model, All still belong to within the scope of the technical solution of the utility model.

Claims (5)

1. A two-way washing machine deceleration clutch, comprising an input shaft (1), a fixed clutch shared shaft (2), a dehydration washing brake shaft (3), a brake wheel (9) and a pulsator shaft (4), characterized in that: A planetary gear transmission mechanism is arranged in the inner cavity of the brake wheel (9), and two or more planetary gears (6) are installed on the frame (8) of the planetary gear transmission mechanism, and the outer side of the planetary gear (6) It meshes with the inner ring gear set on the inner surface of the brake wheel (9), and its inner side meshes with two upper and lower sun gears (7, 5) respectively; the fixed clutch common shaft (2) is sleeved on the input outside the shaft (1), and a clutch control mechanism (10) is arranged between the two, the upper end of the input shaft (1) is connected with the lower sun gear (5), and the upper end of the fixed clutch shared shaft (2) It is connected with the frame (8), the lower end of the pulsator shaft (4) is connected with the upper sun gear (7), and its upper end passes through the upper end surface of the brake wheel (9); the dehydration and washing brake The shaft (3) is sleeved on the outside of the fixed clutch common shaft (2), and its upper end is connected with the lower end surface of the braking wheel (9). 2. The two-way deceleration clutch for washing machine according to claim 1, characterized in that: the lower end of the input shaft (1) is equipped with a pulley (12), and the outer surface of the brake wheel (9) is provided with an electromagnetic clutch brake mechanism ( 11). 3. The two-way washing machine deceleration clutch according to claim 1, characterized in that: the planetary gear (6) is a duplex gear, the upper tooth diameter is smaller than the lower tooth diameter, and the upper and lower sun gears (7, 5) The tooth diameters are respectively matched with the upper and lower tooth diameters of the planetary gears (6). 4. The two-way washing machine deceleration clutch according to any one of claims 1-3, characterized in that: the lower end of the pulsator shaft (4) is connected to the upper sun gear (7) through a key and a keyway, and the input shaft ( 1) The upper end is connected with the lower sun gear (5) through a key and a keyway. 5. The two-way deceleration clutch for washing machine according to claim 1, characterized in that: the upper end surface of the brake wheel (9) is provided with a positioning bushing, and the output shaft (4) passes through the positioning bushing.

Images