Washing machine driver

Abstract

Disclosed is a washing machine driver, comprising an electric motor, a washing axle ( 51 ), a dehydration axle sleeve ( 52 ) sheathed on the washing axle ( 51 ) and a gear reduction mechanism, wherein the washing axle ( 51 ) is coaxially mounted inside a motor rotor ( 23 ) of the electric motor and is fixed to an output gear ( 332 ) of the gear reduction mechanism, and an input gear shaft ( 31 ) of the gear reduction mechanism is inserted inside a shaft hole of the motor rotor ( 23 ). Since the input gear shaft ( 31 ) of the gear reduction mechanism is inserted inside the shaft hole of the motor rotor ( 23 ), the motor rotor acts as the gear carrier of the gear reduction mechanism, effectively combining the gear reduction mechanism and the electric motor in one, thereby reducing the axial size of the washing machine driver, making the structure of the washing machine driver simple and compact so as to occupy a small space. Furthermore, since the transmission ratio of the gear reduction mechanism has a large range, a large reduction ratio output can be achieved.

1 . A washing machine driver, comprising an electric motor, a wash shaft, a spin tube sleeved on the wash shaft, and a gear reduction mechanism, wherein, the wash shaft is coaxially mounted in a motor rotor of the electric motor and is fixedly connected to an output gear of the gear reduction mechanism, and the gear reduction mechanism comprises an input gear shaft inserted in a shaft hole of the motor rotor. 
     
     
         2 . The washing machine driver according to  claim 1 , wherein the gear reduction mechanism comprises a first gear, a second gear, an intermediate gear and the output gear; the first gear and the second gear are fixedly installed at two ends of the input gear shaft respectively, the first gear engages with the intermediate gear, and the second gear engages with the output gear; and the intermediate gear is sleeved on the spin tube, and the output gear is fixedly connected to the wash shaft. 
     
     
         3 . The washing machine driver according to  claim 1 , wherein the gear reduction mechanism comprises a dual gear, an intermediate gear and the output gear; the dual gear is sleeved on the input gear shaft, and the intermediate gear and the output gear engage with a first stage gear and a second stage gear of the dual gear respectively; and the intermediate gear is sleeved on the spin tube, and the output gear is fixedly connected to the wash shaft. 
     
     
         4 . The washing machine driver according to  claim 2 , wherein the intermediate gear is an external gear or an internal gear ring. 
     
     
         5 . The washing machine driver according to  claim 2 , wherein the output gear is an external gear or an internal gear ring. 
     
     
         6 . The washing machine driver according to  claim 1 , wherein the driver further comprises a clutch device, and the clutch device is arranged between the spin tube and the motor rotor to realize a switching between a washing condition and a spinning condition. 
     
     
         7 . The washing machine driver according to  claim 6 , wherein a clutch toothed disc of the clutch device is connected to the spin tube via a splined sleeve, and the clutch toothed disc engages with the splined sleeve and is axially slidably connected to the splined sleeve. 
     
     
         8 . The washing machine driver according to  claim 7 , wherein in the washing condition, the clutch toothed disc is engaged with an upper end cover of the electric motor; and in the spinning condition, the clutch toothed disc is engaged with the motor rotor. 
     
     
         9 . The washing machine driver according to  claim 7 , wherein in the washing condition, the clutch toothed disc is not fixed; and in the spinning condition, the clutch toothed disc is engaged with the motor rotor. 
     
     
         10 . The washing machine driver according to  claim 6 , wherein the clutch device is an electromagnetic clutch device or a mechanical clutch device. 
     
     
         11 . The washing machine driver according to  claim 3 , wherein the intermediate gear is an external gear or an internal gear ring. 
     
     
         12 . The washing machine driver according to  claim 3 , wherein the output gear is an external gear or an internal gear ring. 
     
     
         13 . The washing machine driver according to  claim 2 , wherein the driver further comprises a clutch device, and the clutch device is arranged between the spin tube and the motor rotor to realize a switching between a washing condition and a spinning condition. 
     
     
         14 . The washing machine driver according to  claim 13 , wherein a clutch toothed disc of the clutch device is connected to the spin tube via a splined sleeve, and the clutch toothed disc engages with the splined sleeve and is axially slidably connected to the splined sleeve. 
     
     
         15 . The washing machine driver according to  claim 14 , wherein in the washing condition, the clutch toothed disc is engaged with an upper end cover of the electric motor; and in the spinning condition, the clutch toothed disc is engaged with the motor rotor. 
     
     
         16 . The washing machine driver according to  claim 14 , wherein in the washing condition, the clutch toothed disc is not fixed; and in the spinning condition, the clutch toothed disc is engaged with the motor rotor. 
     
     
         17 . The washing machine driver according to  claim 3 , wherein the driver further comprises a clutch device, and the clutch device is arranged between the spin tube and the motor rotor to realize a switching between a washing condition and a spinning condition. 
     
     
         18 . The washing machine driver according to  claim 17 , wherein a clutch toothed disc of the clutch device is connected to the spin tube via a splined sleeve, and the clutch toothed disc engages with the splined sleeve and is axially slidably connected to the splined sleeve. 
     
     
         19 . The washing machine driver according to  claim 18 , wherein in the washing condition, the clutch toothed disc is engaged with an upper end cover of the electric motor; and in the spinning condition, the clutch toothed disc is engaged with the motor rotor. 
     
     
         20 . The washing machine driver according to  claim 18 , wherein in the washing condition, the clutch toothed disc is not fixed; and in the spinning condition, the clutch toothed disc is engaged with the motor rotor.