CN202696362U

CN202696362U - Gear shifting motor

Info

Publication number: CN202696362U
Application number: CN2012200249491U
Authority: CN
Inventors: 倪锦祥; 周雪峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-01-19
Filing date: 2012-01-19
Publication date: 2013-01-23
Anticipated expiration: 2022-01-19

Abstract

The utility model belongs to the technical field of motors and particularly relates to a gear shifting motor. An inner cavity of a shell is divided into a motor room and a speed changer room by a baffle plate arranged in the shell, the shell, an upper end cover and a lower end cover. The motor room is provided with a motor stator and a rotor. A rotor shaft is provided on an axis of the rotor. A clutch is arranged on the rotor. The speed changer room is provided with a transmission gear set, the rotor and the clutch drive the transmission gear set, and drives an output shaft to output different rotating speeds. The gear shifting motor provided by the utility model is arranged outside a wheel hub and is connected with the wheel hub by virtue of the output shaft, so that the gear shifting motor is high in transmission ratio and large in output torque. The gear shifting motor has two different gear ratio output torques and is suitable for electric cars and the like.

Description

A kind of gear shifting motor

Technical field:

The utility model belongs to technical field of motors, refers in particular to a kind of gear shifting motor.

Background technology:

On Chinese electric motor car market, at present mainly take wheel hub motor and electric dynamo as main, motor with gear graduation is considerably less, because the requirement on machining accuracy of gear motor is high, and complex structure, and the shortcoming such as production difficulty height, so that the ratio that this class motor occupies on the market is very low, yet the transmission efficiency of gear motor is high, and the speed change characteristic is good, can realize the output of high pulling torque, for common motor, be difficult to accomplish.

Summary of the invention:

The gear shifting motor that the purpose of this utility model provides that a kind of electric current is little, moment of torsion is large, can speed change.

The utility model is achieved in that

A kind of gear shifting motor, the dividing plate that arranges in the housing and housing and upper and lower end cap are divided into motor room and speed changer chamber with the housing inner chamber, be provided with motor stator and rotor in the motor room, be provided with armature spindle on the rotor axis, be provided with clutch at rotor, the indoor driving gear set that is provided with of speed changer, rotor and clutch drive driving gear set and drive the outwards different rotating speed of output of output shaft.

Above-mentioned stator is arranged on outside the rotor, and stator is fixed by screws on the interior dividing plate of housing, and an end of armature spindle is bearing on the upper end cover by bearing.

The concrete structure of above-mentioned clutch is: the outer disk of clutch is fixed on the rotor and drives the indoor slow-speed shaft of speed changer by armature spindle and rotates, be enclosed within on the sleeve on the armature spindle and be fixed with clutch-plate, support by bearing between armature spindle and the sleeve, sleeve is bearing on the dividing plate by bearing, on the clutch-plate circumferentially the interval be hinged with several clutches and get rid of piece, clutch gets rid of that piece does not contact with outer disk when low speed, during high speed and outer disk contact friction power transmission.

Above-mentioned driving gear set is the multi-stage gear speed changer, and the multi-stage gear speed changer is driven by rotor.

Above-mentioned multi-stage gear speed changer is the two-stage gear-shift mechanism, the concrete structure of two-stage gear-shift mechanism is: speed changer is indoor to be supported with slow-speed shaft by bearing, high speed shaft and output shaft, pinion on the armature spindle and the gear wheel engaged transmission on the slow-speed shaft, gear on the output shaft simultaneously with slow-speed shaft on pinion and the pinion transmission on the high speed shaft, gear wheel on the high speed shaft and the pinion transmission on the sleeve, between the gear wheel of slow-speed shaft and installation on it unilateral bearing is installed, between the gear wheel of high speed shaft and installation on it unilateral bearing is installed.

Above-mentioned upper and lower end covers and is respectively arranged with end-cover axle and output fixed axis, and the outer end of end-cover axle is stretched out outside the upper end cover, the inner is fixed on the upper end cover, is provided with screw thread in the outer end of end cap fixed axis; The inner of described output fixed axis by bearing be connected with the other end of armature spindle, the outer end stretches out bottom end cover, the inner of output fixed axis is provided with the connecting plate that fixed support is used, and is provided with screw thread in the outer end of output fixed axis.

Above-mentioned output shaft is splined shaft, is set in outside the output fixed axis, support by bearing between output shaft and the output fixed axis, the inner of output shaft by bearing be bearing on the bottom end cover, the outer end stretches out outside the bottom end cover, is provided with screw thread in the outer end of output shaft.

Above-mentioned armature spindle, sleeve and output shaft are coaxially set, and the axis of slow-speed shaft, high speed shaft and output shaft is parallel to each other.

Above-mentioned rotor internal cavity is provided with the fan of heat transmission, at upper end cover or/and housing is provided with heat dissipation channel.

Above-mentioned armature spindle and the top of the bearing between the sleeve are provided with oil sealing; The top of the bearing between described dividing plate and the sleeve is provided with oil sealing; The below of the bearing between described output shaft and the output fixed axis is provided with oil sealing; The below of the bearing between described output shaft and the bottom end cover is provided with oil sealing.

The advantage that the utility model is given prominence to compared to existing technology is:

1, the utility model is arranged on the outside of wheel hub, is connected with wheel hub by output shaft, and gearratio is large, and the moment of torsion of output is large;

2, the utility model is two gear double-speed motors, has two kinds of different gear ratio output torques;

3, motor stator of the present utility model does not need the hot jacket assembling, is screwed in the casing easy accessibility;

4, installation of the present utility model is the same with common wheel hub motor, the structure that does not need to change vehicle frame;

5, be provided with cooling fan in the rotor of the present utility model, in casing, be provided with heat dissipation channel, good heat dissipation effect;

6, the utility model is applicable to the occasions such as electric motor car.

Description of drawings:

Fig. 1 is schematic perspective view of the present utility model;

Fig. 2 is front view of the present utility model;

Fig. 3 is the A-A cutaway view of Fig. 2;

Fig. 4 is one of schematic diagram of motor of the present utility model and gear train;

Fig. 5 be motor of the present utility model and gear train schematic diagram two;

Fig. 6 is the clutch schematic diagram after clutch case of the present utility model is opened.

Embodiment:

The below is further described the utility model with specific embodiment, referring to Fig. 1-6:

A kind of gear shifting motor, the dividing plate 20 of housing 10 interior settings is divided into motor room and speed changer chamber with housing 10 and upper and

lower end cap

30,40 with housing 10 inner chambers, be provided with motor stator 60 and rotor 50 in the motor room, be provided with armature spindle 70 on rotor 50 axis, be provided with clutch at rotor 50, the indoor driving gear set that is provided with of speed changer, rotor 50 and clutch drive driving gear set and drive the outwards different rotating speed of output of output shaft 340.Upper and

lower end cap

30,40 and housing 10 be connected by screw.

Above-mentioned stator 60 is arranged on outside the rotor 50, and stator 60 is fixed by screws on the dividing plate 20 in the housing 10, and armature spindle 70 is supported on the upper end cover 30 by bearing 90, and an end of armature spindle 70 is connected by axle sleeve 110 and rotor 50.

The concrete structure of above-mentioned clutch is: the outer disk 190 of clutch is fixed on the rotor 50 and drives the indoor slow-speed shaft of speed changer 262 by armature spindle 70 and rotates, be enclosed within on the sleeve 80 on the armature spindle 70 and be fixed with clutch-plate 150, support by bearing 91 between armature spindle 70 and the sleeve 80, sleeve 80 is bearing on the dividing plate 20 by bearing 370, on the clutch-plate 150 circumferentially the interval be hinged with several clutches and get rid of piece 160, clutch gets rid of that piece 160 does not contact with outer disk 190 when low speed, during high speed and outer disk 190 contact friction power transmissions.

Above-mentioned driving gear set is the multi-stage gear speed changer, and the multi-stage gear speed changer is driven by rotor 50.

Above-mentioned multi-stage gear speed changer is the two-stage gear-shift mechanism, the concrete structure of two-stage gear-shift mechanism is: speed changer is indoor to be supported with slow-speed shaft 262 by bearing 270, high speed shaft 261 and output shaft 340, pinion 100 on the armature spindle 70 and gear wheel 200 engaged transmission on the slow-speed shaft 262, gear 220 on the output shaft 340 simultaneously with slow-speed shaft 262 on pinion 210 and pinion 240 engaged transmission on the high speed shaft 261, gear wheel 230 on the high speed shaft 261 and pinion 130 engaged transmission on the sleeve 80, between the gear wheel 200 of slow-speed shaft 262 and installation on it unilateral bearing 350 is installed, between the gear wheel 230 of high speed shaft 261 and installation on it unilateral bearing 350 is installed.

Be respectively arranged with end-cover axle 280 and output fixed axis 140 on the above-mentioned upper and

lower end cap

30,40, the outer end of end-cover axle 280 is stretched out outside the upper end cover 30, the inner is fixed on the upper end cover 30, is provided with screw thread in the outer end of end cap fixed axis 280; The inner of described output fixed axis 140 by bearing 290 be connected with the other end of armature spindle 70, the outer end stretches out bottom end cover 40, the inner of output fixed axis 140 is provided with the connecting plate 360 that fixed support is used, and is provided with screw thread in the outer end of output fixed axis 140.

Above-mentioned output shaft 340 is splined shaft, be set in outside the output fixed axis 140, support by bearing 250 between output shaft 340 and the output fixed axis 140, the inner of output shaft 340 by bearing 180 be bearing on the bottom end cover 40, the outer end is arranged on outside the bottom end cover 40, is provided with screw thread in the outer end of output shaft 340.

Above-mentioned armature spindle 70, sleeve 80 and output shaft 340 are coaxially set, and slow-speed shaft 262, high speed shaft 261 are parallel to each other with the axis of output shaft 340.

Above-mentioned rotor 50 inner chambers are provided with the fan of heat transmission, at upper end cover 30 or/and housing 10 is provided with heat dissipation channel.

Above-mentioned armature spindle 70 and the top of the bearing 310 between the sleeve 80 are provided with oil sealing 320; The top of the bearing 370 between described dividing plate 20 and the sleeve 80 is provided with oil sealing; The below of the bearing 250 between described output shaft 340 and the output fixed axis 140 is provided with oil sealing 330; The below of the bearing 180 between described output shaft 340 and the bottom end cover 40 is provided with oil sealing 300.

Operation principle of the present utility model:

When starting, the rotating speed of motor is slow, at this moment the moment of torsion that needs is very large, pinion 100 on the armature spindle 70 rotation rotor driven axles 70 and gear wheel 200 engaged transmission on the slow-speed shaft 262, gear 220 on the output shaft 340 simultaneously with slow-speed shaft 262 on pinion 210 and pinion 240 engaged transmission on the high speed shaft 261, gear wheel 230 on the high speed shaft 261 and pinion 130 engaged transmission on the sleeve 80, the band dynamic clutch rotates together, clutch is got rid of piece 160 and is not contacted with outer disk 190 when low speed, this moment, output formed a large deceleration effect, this group gearratio is slow, and foot has reached related gradeability;

That clutch is got rid of piece 160 and engaged pinion 130 work and gear wheel 230 on the high speed shaft 261 on the sleeve 80 with outer disk 190 contact friction power transmissions and mesh the gear wheel 200 that passes through again on the slow-speed shaft 262 by one-way clutch disengaging work when motor speed has reached the variable block rotating speed of setting.This group gear ratio is fast, well makes electrical motors arrive needed high speed.

Above-described embodiment only is one of preferred embodiment of the present utility model; be not to limit practical range of the present utility model with this; so: all equivalences of doing according to shape of the present utility model, structure, principle change, and all should be covered by within the protection range of the present utility model.

Claims

1. gear shifting motor, it is characterized in that: the dividing plate that arranges in the housing and housing and upper and lower end cap are divided into motor room and speed changer chamber with the housing inner chamber, be provided with motor stator and rotor in the motor room, be provided with armature spindle on the rotor axis, be provided with clutch at rotor, the indoor driving gear set that is provided with of speed changer, rotor and clutch drive driving gear set and drive the outwards different rotating speed of output of output shaft.

2. a kind of gear shifting motor according to claim 1, it is characterized in that: described stator is arranged on outside the rotor, and stator is fixed by screws on the dividing plate in the housing, and an end of armature spindle is bearing on the upper end cover by bearing.

3. a kind of gear shifting motor according to claim 1, it is characterized in that: the concrete structure of described clutch is: the outer disk of clutch is fixed on the rotor and drives the indoor slow-speed shaft of speed changer by armature spindle and rotates, be enclosed within on the sleeve on the armature spindle and be fixed with clutch-plate, support by bearing between armature spindle and the sleeve, sleeve is bearing on the dividing plate by bearing, on the clutch-plate circumferentially the interval be hinged with several clutches and get rid of piece, clutch gets rid of that piece does not contact with outer disk when low speed, during high speed and outer disk contact friction power transmission.

4. each described a kind of gear shifting motor according to claim 1-3, it is characterized in that: described driving gear set is the multi-stage gear speed changer, and the multi-stage gear speed changer is driven by rotor.

5. a kind of gear shifting motor according to claim 4, it is characterized in that: described multi-stage gear speed changer is the two-stage gear-shift mechanism, the concrete structure of two-stage gear-shift mechanism is: speed changer is indoor to be supported with slow-speed shaft by bearing, high speed shaft and output shaft, pinion on the armature spindle and the gear wheel engaged transmission on the slow-speed shaft, gear on the output shaft simultaneously with slow-speed shaft on pinion and the pinion transmission on the high speed shaft, gear wheel on the high speed shaft and the pinion transmission on the sleeve, between the gear wheel of slow-speed shaft and installation on it unilateral bearing is installed, between the gear wheel of high speed shaft and installation on it unilateral bearing is installed.

6. a kind of gear shifting motor according to claim 1, it is characterized in that: described upper and lower end covers and is respectively arranged with end-cover axle and output fixed axis, the outer end of end-cover axle is stretched out outside the upper end cover, the inner is fixed on the upper end cover, is provided with screw thread in the outer end of end cap fixed axis; The inner of described output fixed axis by bearing be connected with the other end of armature spindle, the outer end stretches out bottom end cover, the inner of output fixed axis is provided with the connecting plate that fixed support is used, and is provided with screw thread in the outer end of output fixed axis.

7. according to claim 1 or 5 or 6 described a kind of gear shifting motors, it is characterized in that: described output shaft is splined shaft, be set in outside the output fixed axis, support by bearing between output shaft and the output fixed axis, the inner of output shaft by bearing be bearing on the bottom end cover, the outer end stretches out outside the bottom end cover, is provided with screw thread in the outer end of output shaft.

8. a kind of gear shifting motor according to claim 1, it is characterized in that: described rotor internal cavity is provided with the fan of heat transmission, at upper end cover or/and housing is provided with heat dissipation channel.