CN2400475Y

CN2400475Y - Engaging and disengaging gear of washing machine

Info

Publication number: CN2400475Y
Application number: CN 99254540
Authority: CN
Inventors: 黎明光; 欧富强; 陈国聪; 郭基念
Original assignee: Zhaoqing City No2 Automation Instruments And Meters Factory
Current assignee: Zhaoqing City No2 Automation Instruments And Meters Factory
Priority date: 1999-11-25
Filing date: 1999-11-25
Publication date: 2000-10-11
Anticipated expiration: 2009-11-25

Abstract

The utility model relates to a clutch of a washing machine, which is suitable for being used for power transmission on a fully automatic washing machine. The utility model is mainly composed of an upper supporting seat 1, a lower supporting seat 4, a restoring spring 5, a braking rod 7, a bracket 8, a limiting plate 9, an engaging and disengaging rod 10, a pin shaft 11, a torque force engaging and disengaging spring 12, screw nuts 14, and a square hole sleeve 15. The utility model can be applied on the washing machine which realizes that a motor directly outputs required rotary speed for washing and required rotary speed for dehydration through relevant control circuits for achieving the purposes of reduced volume for the washing machine and noise reduction. When the utility model is on the washing machine which utilizes the own reversal force moment of the motor as dynamic force for electric braking, a braking band, a braking target, and a corresponding spring do not need additionally arranging, and the control of the braking force moment is simple and more stable.

Description

The washing machine arrangement of clutch

The utility model relates to a kind of washing machine arrangement of clutch, is suitable for the usefulness of automatic washing machine upper activation force transmission.

In present automatic washing machine, include the dehydration barrel of bucket in the outer bucket of washing, the double as washing, the impeller that is positioned at the stirring usefulness of washing barrel, tool hollow form dehydrating shaft, with critical pieces such as coaxial impeller axle of dehydrating shaft and motor, during work, washing machine must be given impeller or dehydration barrel with the transmission of power of motor by an arrangement of clutch with deceleration, drive impeller or dehydration barrel and rotate, realize the washing or the dehydrating function of washing machine.Thereby above-mentioned washing machine arrangement of clutch is to drive ratchet by ratchet to drive the torsion spring rotation, make the endoporus of torsion spring rise big or dwindle, thereby realize the clutch of torsion spring and square hole friction cover, reach the clutch function of arrangement of clutch, but, as clutch device, because the characteristic of the complicated and torsion spring of mechanism itself, one-directional rotation is washed in appearance easily with torsion spring; Simultaneously, because torsion spring can only transmit the dehydration rotating torque in single direction ground, must increase brake band, braking hub and corresponding spring in addition and just can carry out mechanical braking, make the stability control of clutch and braking moment become complicated, whole mechanism is bulky, noise increases, and this arrangement of clutch can not be applied to utilize on the washing machine of opposing torque as electric braking power of motor itself.

The purpose of this utility model provides a kind of washing machine arrangement of clutch, and it can overcome the deficiencies in the prior art.

The utility model is to realize like this, it is mainly by upper bracket, undersetting, back-moving spring, brake lever, support, trip(ping) lever, bearing pin, torsion clutch spring and square hole cover are formed, wherein, undersetting is contained under the upper bracket, brake lever is fixed under the undersetting, support and can be installed on the brake lever together to its back-moving spring that applies rotating torque, one end of support connects the draining valve pull bar, the other end is a movable end, the square hole cover is with the state fixed cover that can not rotate with respect to the laundry machine dehydration axle lower end at the laundry machine dehydration axle, square hole puts has axis pin base, trip(ping) lever is passed on the axis pin base that is installed in the square hole cover by bearing pin, one end is housed on the bearing pin is pressed in torsion clutch spring on the trip(ping) lever, the other end connection side borehole jack of torsion clutch spring.

The utility model compared with prior art, have advantages such as compact conformation, action are simple, reliable operation, can be applicable to realize on the washing machine of direct required washing of output of motor and dehydrating speed the purpose that reach and dwindle the washing machine volume, reduces noise by relevant control circuit; And the utility model also can be applicable to utilize on the washing machine of opposing torque as electric braking power of motor itself, need not to increase in addition brake band, braking hub and corresponding spring, makes the control of braking moment become simple and more stable.

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 is that the utility model is assemblied in the structural representation on the washing machine

Fig. 2 is the schematic diagram of the utility model when the washing state

Fig. 3 is the schematic diagram of the utility model when dewatering state

As Fig. 1,2, shown in 3, the utility model is mainly by upper bracket 1, undersetting 4, back-moving spring 5, brake lever 7, support 8, limiting plate 9, trip(ping) lever 10, bearing pin 11, torsion clutch spring 12, nut 14 and square hole cover 15 are formed, wherein, undersetting 4 is contained in the upper bracket that connects at the bottom of 16 barrels in the outer bucket of washing 1 time, undersetting 4 is provided with the limiting plate 9 that can engage with trip(ping) lever 10 upper ends, brake lever 7 is fixed on undersetting 4 times, support 8 and can being installed in together on the brake lever 7 to its back-moving spring 5 that applies rotating torque, one end of support 8 connects draining valve pull bar 6, the other end is a movable end, square hole cover 15 by nut 4 with can not be with respect to the state fixed cover of dehydrating shaft 3 rotations lower end at dehydrating shaft 3, has axis pin base on the square hole cover 15, trip(ping) lever 10 is passed on the axis pin base that is installed in square hole cover 15 by bearing pin 11, one end is housed on the bearing pin 11 is pressed in torsion clutch spring 12 on the trip(ping) lever 10, the other end connection side borehole jack 15 of torsion clutch spring 12.During work, when washing machine enters washing procedure, motor rotor 13 is directly passed to rotating torque the impeller axle 2 that is attached thereto coaxially, thereby the impeller 18 that is fixed on impeller axle 2 upper ends is rotated, implement the laundry action, and support 8 is under the rotating torque effect that is loaded on back-moving spring 5 wherein, forward rotate the upper end that acts on trip(ping) lever 10 with movable end, make trip(ping) lever 10 overcome the active force of torsion clutch spring 12 and rotate counterclockwise, make the lower end of trip(ping) lever 10 and motor rotor 13 between groove break away from, thereby dehydrating shaft 3 and dehydration barrel 17 are separated with the power of motor, do not implement the dehydration action, the upper end of trip(ping) lever 10 then engages with limiting plate 9, makes dehydrating shaft 3 and dehydration barrel 17 and the outer bucket of washing 16 relative fixed, and the situation that reduces the rate of cleaning to avoid producing dehydration barrel 17 transfers when the washing state takes place; When washing machine enters dehydration procedure, support 8 is under the tension of draining valve pull bar 6, overcome the rotating torque of back-moving spring 5 and rotate around brake lever 7, make the active force of the movable end releasing of support 8 to trip(ping) lever 10 upper ends, the lower end of trip(ping) lever 10 is under the restoring moment effect of torsion clutch spring 12, with bearing pin 11 is that the centre of gyration rotates clockwise, and with motor rotor 13 between groove engage, make the rotating torque of motor pass to dehydrating shaft 3 by trip(ping) lever 10, square hole cover 15, rotate thereby drive dehydration barrel 17, implement the dehydration action.

Claims

1, a kind of washing machine arrangement of clutch, it is characterized in that having upper bracket 1, undersetting 4, back-moving spring 5, brake lever 7, support 8, trip(ping) lever 10, bearing pin 11, torsion clutch spring 12 and square hole cover 15, wherein, undersetting 4 is contained in upper bracket 1 time, brake lever 7 is fixed on undersetting 4 times, support 8 and can being installed in together on the brake lever 7 to its back-moving spring 5 that applies rotating torque, one end of support 8 connects draining valve pull bar 6, the other end is a movable end, square hole cover 15 is with the state fixed cover that can not rotate with respect to dehydrating shaft 3 lower end at dehydrating shaft 3, has axis pin base on the square hole cover 15, trip(ping) lever 10 is passed on the axis pin base that is installed in square hole cover 15 by bearing pin 11, one end is housed on the bearing pin 11 is pressed in torsion clutch spring 12 on the trip(ping) lever 10, the other end connection side borehole jack 15 of torsion clutch spring 12.

2, washing machine arrangement of clutch according to claim 1 is characterized in that undersetting 4 is provided with the limiting plate 9 that can engage with trip(ping) lever 10 upper ends.

3,, it is characterized in that square hole cover 5 is fixed on the lower end of dehydrating shaft 3 by nut 14 according to claim 1,2 described washing machine arrangement of clutch.