KR0169430B1 - A power transfer apparatus of one tub type washing machine - Google Patents

Abstract

The present invention relates to a power transmission device of a washing machine, and more particularly, the power conversion and braking efficiency according to the washing and dehydration of a pulsator and a combined dehydration tank and the power transfer of a dehydration device when performing a washing and dehydrating stroke of a solar type washing machine. In order to improve the power transmission system of the washing machine that is driven by the power of the motor to drive the pulsator and the laundry dehydration tank, the dehydration shaft, and the planetary washing machine equipped with a planetary gear device, to prevent idling of the de-shrinkage during washing And the control means for switching the power according to the power transmission so as to rotate in the forward direction when dewatering, there is provided a disk-type braking means for braking the washing shaft and dewatering shaft when dehydration stop.

Description

Power Train of Solar Washer

1 is a schematic cross-sectional view of a general solar type washing machine.

2 is a cross-sectional view showing a power transmission device of a conventional solar type washing machine.

3 is a sectional view showing a power transmission device of a solar type washing machine according to the present invention.

4 is an operating state diagram of a power transmission device according to the present invention,

(a) is for washing, (b) is for dehydration, and (c) is for operation.

* Explanation of symbols for main parts of the drawings

53 gear case 54 drum

56: coupling step groove 57: coupling step

58, 63, 67: cam 59: guide

60: guide 61: elastic member

62: ring lever 64: one-way clutch spring

66: ring lower 68: first disc

69: second disk 70: screw portion

The present invention relates to a power transmission device of a solar type washing machine, and more particularly, in the power control of a pulsator and a combined dehydration tank during washing and dehydration operation of a solar type washing machine, the power transmission of washing and dehydration and dehydration stop. The present invention relates to a power transmission device that is controlled by a disc type to improve power conversion and braking efficiency.

In general, the washing machine is a two-season type of washing and dewatering tank independent, and a solar type of washing and dehydrating tank are used.In the near term, the automatic washing machine is automated due to the inconvenience of using a double-type washing machine with separate washing and dehydrating stroke. Washing machines are in mass production.

Since the solar type washing machine performs a washing operation and a dehydration operation in a washing combined dehydration tank, the washing operation is performed by driving only a pulsator forming a water flow by intermittent rotation of the washing combined use dehydration tank. Dehydration administration is performed by driving a combined washing and dehydration tank, and a power transmission device having a power switching and braking function according to washing and dehydration is essential.

In general, the power transmitted for the rotation of the pulsator during washing in the motor is accelerated by about 1/12, and in dehydration, it is used by about 1/2 of the speed to generate the centrifugal force of the washing / dehydration tank. Drive pulley and driven pulley connected by V belt are transferred to the washing shaft or dehydration shaft, and the control of power during washing and dehydration is controlled by the planetary gear system and the power transmission system with braking function.

The configuration of the solar type washing machine is installed in the washing machine 1 as shown in FIG. 1 to accommodate the washing water, the combined washing and dehydrating tank 3 installed in the outer tank, and the washing and operating dehydrating tank to wash. A pulsator 4 which forms a stream of water, a power transmission device 5 which is addressed to drive the washing / dehydration tank and a pulsator, a control unit 6 which is a function control means of the washing machine, and a motor 7 are roughly classified.

Conventional power transmission device of the solar type washing machine is a driving belt pulley 8, driven pulley 9, which is delivered to the motor (7) in FIG. 1 to transfer power (V belt connecting the drive pulley and the driven pulley ( 10 is provided with a washing shaft 11 is a hollow shaft that is provided to the pulsator (4) as shown in Figure 2, a dehydration shaft 12 coupled to the washing shaft to drive the combined use dehydration tank (3), The planetary gear device 13 which decelerates and transmits the power of the motor to the washing shaft and the dewatering shaft, and acts as a brake drum, and has a clutch function so that the power is transmitted to the washing shaft or the dewatering shaft according to each administration during washing and dewatering operations. One-way clutch spring 14, One-way roller clutch 15 to prevent idle rotation of the dehydration shaft during washing, Clutch lever 16 to operate the one-way clutch spring, Brake lever 17 to brake the planetary gear device, The clutch lever and bra A drain motor 18 for operating the take lever and a brake band 19 wound around the outer circumferential surface of the planetary gear device so that rotation of the planetary gear device is braked by the friction force in accordance with the operation of the brake lever are provided. It became.

The planetary gear device 13 is a driven pulley connected to a washing shaft from a driving pulley connected to the motor to reduce the power of the motor, which is reduced by about 1/2 by the diameter difference of the pulley, to reduce the power by about 1/6 to the motor delivered to the washing shaft. Inner gear 21 is formed in the gear box 20 to reduce the power of the final 1/12 of the inner gear 21, the sun gear 22 formed on the washing shaft, between the inner gear and the sun gear A plurality of internal planetary gears 23, a fixing pin 24 for fixing the planetary gear, the fixing pin is integrally formed and the dehydration shaft 12 by the one-way clutch spring 14 when dewatering the washing shaft 11 ) Is provided with a gear housing (25), two sets of first case (26), a second case (27) in which the planetary gear device is installed and the clutch lever and the brake lever are fixed.

The dehydration shaft 12 combined with the combined washing and dehydration tank 3 is press-fitted to the upper portion of the gearbox 20 of the planetary gear device 13 to be speeched with the gear housing 25 to rotate in one axis when dewatering. do.

In the drawings, reference numerals 28 and 29 are bearings attached to upper and lower parts so that the washing shaft and the dehydration shaft rotate smoothly.

The operation of the power transmission device of the conventional solar type washing machine is energized according to the control of the control unit 6 when performing the washing stroke, and when the motor 7 is operated, the driven pulley 8 and the driven pulley connected by the V belt 10 are operated. As the power of the motor is transmitted to the washing shaft 11 by the rotating shaft 9, the washing shaft rotates forward and backward, thereby causing the pulsator 4 to form a swirling water flow to perform the washing stroke. By the brake band 19 wound around 13 and the one-way roller clutch 15 wound around the dewatering shaft 12, idling of the washing / dehydrating tank 3 is prevented, and the one-way clutch spring 14 is in a loose state. Keeping up.

Subsequently, after the washing stroke is completed, when the drain motor 18 pulls the clutch lever 16 and the brake lever 17 according to the control of the control unit when the laundry is dewatered, the one-way clutch spring 14 is wound and the brake band (19) releases the braking of the planetary gear device 13 in the unlocked state and drives the washing shaft (11) and the dewatering shaft (12) with a single rotating body to dry the washing combined dehydration tank (3) addressed to the dehydration shaft. Rotate to perform dehydration stroke.

In addition, when the dehydration stroke is completed, the energization of the control unit is interrupted and the brake lever 17 is rewound to generate a braking force due to friction between the brake band 19 and the outer peripheral surface of the planetary gear device 13. ) And dehydration shaft 12 are stopped.

However, the power transmission device of the conventional solar type washing machine is a one-way clutch mounted for braking force reinforcement and preventing idling because the braking force of the dehydration tank combined with the laundry occurs during dehydration stop depending on the direction of the brake band wound on the planetary gear device. The fixed part of the spring breaks due to stress concentration and requires a separate caution device for caution (center adjustment) of the one-way roller clutch, and inability to operate the power transmission device due to damage when overloading the one-way roller clutch. When braking for noise generation and dehydration stop, slippage of the planetary gear system and brake band causes idleness, resulting in lower braking efficiency and longer braking time.

In addition, there is a closed end where productivity decreases as the production cost increases due to the use of expensive components such as one-way clutch springs and one-way roller clutches.

Therefore, the present invention solves the problems of the prior art as described above, and prevents damage and malfunction of parts due to idle running generated during washing and dehydration of the solar type washing machine, and the pulsator and the dehydration tank for the combined use of the washing machine. It is an object of the present invention to provide a power transmission device of a solar type washing machine, which is controlled by a disc brake method to improve power transmission, conversion, and braking efficiency during washing, dehydration, and dehydration stop.

It is another object of the present invention to provide savings and power savings by using a washing machine due to rapid power switching and shortening of braking time, and to improve productivity by reducing production cost by eliminating expensive parts and miniaturization.

Means for achieving the object of the present invention is a control means for switching the power according to the power transmission to prevent the idle rotation of the dehydration shaft during washing and forward rotation when dehydration, the disk type braking means for braking the washing shaft and dehydration shaft during dehydration stop Characterized in that it is provided.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the power transmission apparatus of a solar type washing machine equipped with a washing shaft, a dehydration shaft, and a planetary gear device to drive a pulsator and a washing / dehydration tank by receiving power of a motor during washing and dehydration administration, according to the present invention. The power transmission device of the washing machine is a control means for preventing idling of the power transmission and dewatering shaft as shown in Figure 3 is the dewatering shaft 12 and the one side of the planetary gear device 13 coupled to the washing shaft (11) Fixed part 50 to be press-fitted, the first case 51, the second case 52, the gear case 53 coupled to the inner gear 21 of the planetary gear device, the outer side of the fixing part, A drum 54 is attached to and detached from the gear case.

The gear case 53 is coupled to the inner gear and the concave-convex portion 55 and is provided with a coupling step groove 56 to be detached from the drum 54. The drum 54 is a coupling step groove of the gear case. Coupling stepped portion 57 protruding from the upper end surface to be attached to and detached from the cam 58 protruding from the lower end surface, the guide 59 protruding on both sides is provided.

Guide path 60 of the drum is inserted into the second case 52 is provided with a guide path 60 to prevent idling.

In addition, the elastic member which is installed in the first case and the second case to detach the drum 54 from the gear case 53 so as to switch the power of the washing shaft and the dehydration shaft according to the washing and dehydrating stroke ( 61), a ring lever 62 having a cam 63 which is raised and lowered by the operation of the drain motor 18 and protruding on both sides thereof is provided.

It is operated by the drain motor 18 so that only the washing shaft is rotated in the unwinding state when washing and the dehydration shaft is coupled to the washing shaft in the wound state when dewatering so that the dehydration shaft is rotated together as a rotating body on the washing shaft. One-way clutch spring 64 having a clutch function is provided.

On the other hand, the braking means for the dehydration stop upon completion of the dehydration stroke is a ring lower having a disk housing 65, which is installed on the washing shaft 11, the cam 67 in contact with the ring lever 62 on the top of the disk housing A first disk 68 and a second disk 69 which are provided in the disc housing and provided in two sets in the disc housing are provided, and the bearing 27 is installed in the lower side of the disc housing.

The first disk 68 is fixed by the combination of the drum 54 and the screw 70, the second disk 69 is integrally formed with a hollow hollow tube 71 formed in the center portion to be supported on the washing shaft It is provided.

In the figure, reference numeral B denotes a bolt.

The planetary gear device is the same as the prior art, and will not be described.

In operation of the power transmission apparatus according to the present invention, as shown in FIG. 4 (a), the drain motor 18 is operated in accordance with the operation of the control unit to raise the ring lever 62 so that the cam lever 63 of the ring lever is drum ( The engagement step portion 57 of the drum 54 in the engagement step groove 56 of the gear case 53 which is interviewed with the cam 58 of the 54, coupled to the inner gear 21 of the planetary gear device (13). ) Is coupled to fix the inner gear 21, the elastic member 61 is compressed by the rise of the drum 54 by the rise of the ring lever 52, by the action of the brake lever connected to the drain motor 18 When the one-way clutch spring 64 starts the washing stroke in the unlocked state, the planetary gear 23 moves on the outer circumferential surface of the sun gear 22 which rotates by being coupled to the washing shaft by driving the washing shaft 11, which receives the power of the motor. The motor rotates and transfers the power of the motor decelerated 1/2 by the pulleys to 1/6 deceleration again and rotates the pulsator 4 in the forward and reverse directions to pulsate it. The washing stroke is performed by the water flow formed by the data.

At this time, the drum is not rotated by the guide 59 of the drum 54 coupled to the guide path 60 of the second case 52, and the internal gear is fixed by the fixed coupling with the gear case 53. The power of 21 is intermittent and the dehydration shaft 12 coupled with the planetary gear device is not rotated, thereby preventing idling of the dehydration tank 3 for washing and washing.

Then, after the washing operation is completed, the ring lever 62 is lowered by the drain motor 18 as shown in FIG. 4 (b) to couple the drum 54 to the coupling step groove 56 of the gear case 53. When the step portion 57 is separated, the drum 54 is lowered by the tension force of the elastic member 61, so that the fixed state of the gear case 53 is released and the winding operation of the one-way clutch spring 64 causes the The washing shaft 11 and the dehydration shaft 12 which received power are rotated together, and the dehydration stroke is performed by rotating the combined washing and dehydrating tank 3.

At this time, as the drum 54 is lowered by the elastic member 61, the guide 59 coupled to the guide path 60 of the second case 52 is lowered, and the fixed state of the drum and the gear case is released. Since the planetary gear 23 of the planetary gear device 13 is rotated, the inner gear 21 and the sun gear 22 is rotated together with the gear case 53 coupled to the washing shaft 11, the planetary gear The dehydration shaft 12, which is press-fitted with the fixing portion 50 of the apparatus, is engaged with the drum 54, the first disk 68, and the gear case 53 in accordance with the rotation of the washing shaft 11, It rotates together with the disk 69 as one rotating body.

Subsequently, when the dehydration stroke is completed and the ring lever 62 is lowered according to the operation of the drain motor 18 as shown in FIG. 4 (c), the drum 54 is lowered by the tension force of the elastic member 61 and the ring lever is lowered. The cam 63 of the ring interviewer with the cam 67 of the ring lower 66 to stop the rotation of the first disk 68 coupled by the drum 54 and the threaded portion 70 and the first disk to the second disk A frictional force is applied to the 69 to brake the washing shaft 11 and the dewatering shaft 12 by the friction force to stop the rotation of the pulsator 4 and the washing / dehydrating tank 3 for simultaneous rotation.

As described above, the power transmission device of the solar type washing machine according to the present invention is controlled by a disk method in which the power transmission and switching operation according to the washing and dehydration are interviewed during washing and dehydrating administration. It prevents the loss of power transmission and braking function due to the breakage of the one-way clutch spring, and improves the braking efficiency and shortens the braking time according to the rapid braking during braking for dehydration stop.

In addition, the one-way roller clutch and the separate caution device for caution (center adjustment) are not required to prevent malfunction and noise caused by the use of the one-way roller clutch and to prevent the use of such expensive parts. Miniaturization and productivity are improved.

Claims (3)

Washing combined dehydration tank (3) rotated during the dehydration stroke, a pulsator (4) rotatably installed at the bottom of the washing combined dehydration tank (3), and the washing shaft spoken to the pulsator (4) (11) and the dehydration shaft (12), which accommodates the washing shaft (11) and is assembled with the combined washing / dehydration tank (3), and decelerates the power by the dehydration shaft (12) and the washing shaft (11). In the power transmission device of the sun-type washing machine consisting of a planetary gear device 13 for transmitting and a drain motor 18 for controlling the dehydration stroke; Prevents idling of the dehydration shaft 12 during the washing stroke, and converts power to rotate the dewatering shaft 12 and the washing shaft 11 during the dehydration stroke, and a part of the planetary gear device 13 A fixing part 50 which is press-fitted with the dehydration shaft 12, first and second cases 51 and 52 provided outside the fixing part 50, and the first and second gear cases. The gear case 53 is fixed to the inner gear 21 and the concave-convex portion 55 of the planetary gear device 13 installed inside the (51) (52) and the coupling step groove (56) formed on the lower surface and The coupling step 57 is assembled to the lower portion of the gear case 53 and inserted into the coupling step groove 56 is protruded on the upper surface, the cam 58 is protruded from the lower side and the guide 59 is provided on both sides. The drum 54 and the elastic member 61 disposed inside the first and second cases 51 and 52 so that the drum 54 is lifted and lowered to be detached from the gear case 53. ) And one end is assembled with the drain motor 18 so that the drum 54 is detached from the gear case 53 by the elastic member 61, and a cam 63 is provided on the upper and lower surfaces of the other end. Control means composed of a ring lever (62) cam-coupled with (54); When the dehydration stroke is completed by the control of the control means, the disc housing 65 installed on the laundry shaft 11 and the disc housing 65 installed above the disc housing 65 so as to stop the dehydration. A ring lower 66 provided with a cam 67 at an upper portion thereof to be cam-coupled with the 62, and first and second disks 68 installed inside the disk housing 65 provided with the ring lower 66. Braking means consisting of; (69); power transmission device of a solar type washer. According to claim 1, The second case 52, characterized in that the guide path 60 is inserted into which the guide 59 of the drum 54 is inserted to prevent the drum 54 from idling. Power train of solar type washing machine. The method of claim 1, wherein the first disk (68) is fixed by being coupled to the drum (54) and the screw portion (70), and the second disk (69) is engaged with the gear case (53). Power transmission device of solar powered washing machine.