CN201450401U

CN201450401U - Electric vehicle motor with speed change mechanism

Info

Publication number: CN201450401U
Application number: CN2009200586313U
Authority: CN
Inventors: 李福建
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-06-17
Filing date: 2009-06-17
Publication date: 2010-05-05
Anticipated expiration: 2019-06-17

Abstract

The utility model relates to a driving device, in particular to an electric vehicle motor with a speed change mechanism. The electric vehicle motor comprises a motor, a gearbox and a rotating main shaft, wherein the gearbox is assembled on the top of the motor, a clutch is arranged in the gearbox, and is interlinked with the rotation shaft of the motor through a driving medium, one end of the rotating main shaft is tightly assembled on the shaft center of the clutch, and the other end thereof is matched with a driving wheel of an electric vehicle. When in starting, the motor can drive the clutch to rotate through the driving medium, the clutch is started to push the rotating main shaft to connect with the driving wheel of the electric vehicle after the rotation inertia of the clutch reaches a certain degree, and the starting power of the electric vehicle is more ideal as the clutch has larger inertia.

Description

Electric vehicle motor with gear

Technical field

The utility model relates to a kind of transmission device, refers in particular to the electric vehicle motor with gear.

Background technology

With the in-depth of energy-saving and emission-reduction proposal, use the electric motor car of green energy resource more and more universal.Present electric motor car uses the brushless electric machine of direct-flow storage battery power supply as motor driven mostly, and brushless electric machine generally all is equipped with control device, is realized speed governing, is braked, advances, retreats by control device control motor.In the single motor-driven pattern, motor directly drives to driving wheel output, for avoiding electric motor car starting power deficiency, has to consume more electric weight during startup and comes drive motors, in fact directly cause waste of electric quantity, and do not improved the electric motor car starting power.

The utility model content

The purpose of this utility model is to remedy the deficiencies in the prior art, a kind of electric vehicle motor with gear is provided, directly do not drive behind the electric motor starting, but drive built-in gear, just be connected after the power output of speed changing structure acquires a certain degree with driving wheel to driving wheel output.

For achieving the above object, the utility model has adopted following technical scheme:

Electric vehicle motor with gear, comprise motor, gearbox and rotating spindle, gearbox is assemblied in the motor top, be provided with clutch in the gearbox, clutch is linked by the rotating shaft of driving member and motor, rotating spindle one end is connected with clutch, and its other end then cooperates with the driving wheel of electric motor car.During startup, motor drives clutch by driving member and rotates, and after the rotator inertia of clutch acquired a certain degree, the startup clutch promoted rotating spindle outward and is connected with the driving wheel of electric motor car, because this moment, clutch had bigger inertia, so the starting power of electric motor car is desirable more.

As improvement of the technical scheme, described clutch is a centrifugal clutch, the matrix and the loam cake that comprise concentric, rotating spindle and matrix concentric, matrix be provided with at least three along rotating shaft to extraradial oblique guide groove, respectively establish a slide block in the guide groove, the degree of depth of the nearly rotating shaft end of guide groove is slightly larger than slide block thickness, the degree of depth of the other end is then less than slide block thickness, and loam cake is assemblied on the matrix, connects by elastic device between loam cake and the matrix.When centrifugal clutch rotated, slide block centrifugal force increased, and slides to the other end so that matrix and loam cake are strutted from the nearly rotating shaft end of guide groove gradually; When centrifugal clutch stopped the back, loam cake was regained the nearly rotating shaft end of guide groove with slide block under the elastic device effect, closes up matrix and loam cake.

Preferable, described slide block is the cylinder of laterally being located in the guide groove, its width and guide groove mate and be able to freely roll along guide groove.

Preferable, affiliated elastic device is a spring.

Preferable, matrix is connected with the friction clutch disc of main shaft by a pair of coaxial cooperation, wherein a slice friction clutch disc is fixed on the abutting end of matrix and rotating spindle, and another sheet friction clutch disc then is fixed on the rotating spindle, and the mating surface of friction clutch disc is made as engageable fluted disc.

As improvement of the technical scheme, described driving member is one or more change-speed gearings.

Compare with prior art, the beneficial effects of the utility model are:

Clutch in the electric motor starting rear drive gearbox, after the rotator inertia of clutch acquires a certain degree, the startup clutch outwards promotes rotating spindle and is connected with the driving wheel of electric motor car, because this moment, clutch had bigger inertia, so the starting power of electric motor car is desirable more, to save electricity consumption more than 50% than traditional type of drive, and can bring more powerful driving force, remarkable result be arranged improving the speed of a motor vehicle.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is a STRUCTURE DECOMPOSITION schematic diagram of the present utility model.

Fig. 3 is the structural representation of clutch of the present utility model.

Fig. 4 is the STRUCTURE DECOMPOSITION schematic diagram of clutch of the present utility model.

Among the figure, 1-motor, 2-gearbox, 3-rotating spindle, 4-clutch, 41-matrix, 411-guide groove, 412-slide block, 42-loam cake, 43-elastic device, 44-friction clutch disc, 44`-friction clutch disc, 5-driving member, the driving wheel of 6-electric motor car.

Embodiment

Below in conjunction with specification drawings and specific embodiments the utility model is described further; but the scope that the utility model is protected is not limited thereto, and the equivalence that the technician in this area can expect easily changes and distortion all belongs to protection category of the present utility model.

As depicted in figs. 1 and 2, electric vehicle motor with gear, comprise motor 1, gearbox 2 and rotating spindle 3, gearbox 2 is assemblied in motor 1 top, be provided with clutch 4 in the gearbox 2, clutch 4 is linked by the rotating shaft of driving member 5 with motor 1, and rotating spindle 3 one ends link to each other with clutch 4, and its other end then cooperates with the driving wheel 6 of electric motor car.

Wherein, described driving member 5 is one or more change-speed gearings.

As shown in Figure 3 and Figure 4, described clutch 4 is centrifugal clutches, the matrix 41 and the loam cake 42 that comprise concentric, rotating spindle 3 and matrix 41 concentrics, matrix 41 be provided with at least three along rotating shaft to extraradial oblique guide groove 411, respectively establish a slide block 412 in the guide groove 411, the degree of depth of guide groove 411 nearly rotating shaft ends is slightly larger than slide block 412 thickness, the degree of depth of the other end is then less than slide block 412 thickness, and loam cake 42 is assemblied on the matrix 41, connects by elastic device 43 between loam cake 42 and the matrix 41.When centrifugal clutch rotated, slide block 412 centrifugal force increased, and slide to the other end so that matrix 41 and loam cake 42 are strutted from guide groove 411 nearly rotating shaft ends gradually; When centrifugal clutch stopped the back, loam cake 42 was regained guide groove 411 nearly rotating shaft ends with slide block under elastic device 43 effects, closes up matrix 41 and loam cake 42.

Wherein, described slide block 412 is cylinders of laterally being located in the guide groove 411, and its width and guide groove 411 mate and be able to freely roll along guide groove 411.

Wherein, matrix 41 is connected with the friction clutch disc 44 of rotating spindle 3 by a pair of coaxial cooperation, wherein a slice friction clutch disc 44 is fixed on the abutting end of matrix 41, another sheet friction clutch disc 44` then is fixed on the abutting end of rotating spindle 3, and the mating surface of friction clutch disc 44 and friction clutch disc 44` meshes by fluted disc.

Wherein, described elastic device 43 comprises one or more springs.

During startup, motor drives clutch 4 by driving member 5 and rotates, after the rotator inertia of clutch 4 acquires a certain degree, starting the clutch 4 outside rotating spindles 3 that promote is connected with the driving wheel 6 of electric motor car, because this moment, clutch had bigger inertia, so the starting power of electric motor car is desirable more.

Claims

1. have the electric vehicle motor of gear, it is characterized in that:

Comprise motor, gearbox and rotating spindle, gearbox is assemblied in the motor top, is provided with clutch in the gearbox, and clutch is linked by the rotating shaft of driving member and motor, rotating spindle one end is connected with clutch, and its other end then cooperates with the driving wheel of electric motor car.

2. the electric vehicle motor with gear according to claim 1 is characterized in that:

Described clutch is a centrifugal clutch, the matrix and the loam cake that comprise concentric, rotating spindle and matrix concentric, matrix be provided with at least three along rotating shaft to extraradial oblique guide groove, respectively establish a slide block in the guide groove, the degree of depth of the nearly rotating shaft end of guide groove is slightly larger than slide block thickness, and the degree of depth of the other end is then less than slide block thickness, loam cake is assemblied on the matrix, connects by elastic device between loam cake and the matrix.

3. the electric vehicle motor with gear according to claim 2 is characterized in that:

Described slide block is the cylinder of laterally being located in the guide groove, and its width and guide groove mate and be able to freely roll along guide groove.

4. the electric vehicle motor with gear according to claim 2 is characterized in that:

Affiliated elastic device is a spring.

5. the electric vehicle motor with gear according to claim 2 is characterized in that:

Matrix is connected with the friction clutch disc of rotating spindle by a pair of coaxial cooperation, and wherein a slice friction clutch disc is fixed on the abutting end of matrix, and another sheet friction clutch disc then is fixed on the abutting end of rotating spindle.

6. the electric vehicle motor with gear according to claim 5 is characterized in that:

The mating surface of friction clutch disc is made as can intermeshing fluted disc.

7. according to the described electric vehicle motor of claim 1 to 6, it is characterized in that with gear:

Described driving member is one or more change-speed gearings.