CN203401944U

CN203401944U - Wheel hub motor driving device

Info

Publication number: CN203401944U
Application number: CN201320493159.2U
Authority: CN
Inventors: 时培成; 孙阳敏; 汤文根
Original assignee: Anhui Polytechnic University
Current assignee: Anhui Polytechnic University
Priority date: 2013-08-13
Filing date: 2013-08-13
Publication date: 2014-01-22
Anticipated expiration: 2023-08-13

Abstract

The utility model discloses a wheel hub motor driving device which comprises driving hubs, a speed reducer and a driving motor. The driving hubs are arranged on wheel hubs, a shell of the speed reducer is arranged on a vehicle suspension, a front end cover of the driving motor is fixed on the speed reducer shell to seal the speed reducer, a motor shaft of the driving motor is connected with an input shaft of the speed reducer, and the output shaft of the speed reducer is connected with the driving hubs. A large number of driving components of a traditional vehicle are omitted, the vehicle structure is made to be simpler, meanwhile, a plurality of complex driving modes can be achieved, the wheel hub motor driving device can be applied to various new energy vehicles, and energy loss and mechanical abrasion are reduced.

Description

Wheel motor drive device

Technical field

The utility model relates to vehicle electric power actuation techniques field, especially relates to a kind of wheel motor drive device.

Background technology

For conventional truck, power-transfer clutch, change-speed box, transmission shaft, diff and even part-time case are all absolutely necessary, and these parts not only weight is large, and make the structure of vehicle more complicated, also exist needs periodical maintenance, problem that fault rate is high simultaneously; For this reason, a kind of novel automobile power scheme of current needs replaces the dynamic assembly of conventional truck.

Hub motor driven technology claims again wheel inner electric machine drive technology, and its maximum feature is all incorporated into engine installation, transmission device and brake equipment in wheel hub exactly, and the mechanics of elec. vehicle is simplified greatly, reduces power consumption and energy loss.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of wheel motor drive device, to reach simplification body structure, has the object of better space availability ratio.

In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of wheel motor drive device, comprise driving center, retarder and drive motor, described driving center is arranged on wheel hub, the reducing gearbox of described retarder is arranged on the suspension of vehicle, the motor front end cover of described drive motor is fixed on reducing gearbox and seals retarder, and the motor shaft of described drive motor is connected with the input shaft of retarder, and the output shaft of retarder is connected with driving center.

As a kind of preferred structure of the present utility model, in described retarder, be provided with speed reduction gearing, speed reduction gearing is planetary gear reducing mechanism, the sun wheel shaft of planetary gear reducing mechanism is the input shaft of retarder, the planet wheel spindle of planetary gear reducing mechanism, pinion carrier, planet carrier output shaft are structure as a whole, the output shaft that planet carrier output shaft is retarder.

Described driving center is provided with brake disc, and described reducing gearbox is provided with the brake clamp suitable with brake disc.

Described drive motor comprises the stator being fixedly connected with motor casing and is located at the rotor in stator, and rotor is connected with motor shaft.

The corresponding planet carrier output shaft of described driving center is provided with endoporus, and corresponding endoporus reducing gearbox is provided with and stretches out cylinder, and stretching out of the endoporus of described driving center and reducing gearbox is provided with bearing between cylinder.

Described planet carrier output shaft, and is provided with hub nut in planet carrier output shaft outside driving center is fixed in driving center by spline joint.

The utility model compared with prior art, has the following advantages:

1, saved a large amount of mechanical transmission components, made vehicle structure simpler, can realize the type of drive of Various Complex simultaneously, as forerunner, rear-guard with entirely drive;

2, be applicable to multiple new forms of energy driving skills art, no matter be pure electronic or fuel battery-driven car, can be with this wheel motor drive device as main drive system, simultaneously, a lot of technology of new forms of energy car also can realize very easily such as braking energy reclaims in this wheel motor drive device vehicle;

3, driving system layout is more flexible, does not need complicated machine driven system, has reduced degradation of energy and the mechanical wear in mechanical transmission course;

4, motor output shaft is connected with wheel hub by speed reduction gearing, and the serviceability of motor is very significantly improved.

Accompanying drawing explanation

Below the expressed content of each width accompanying drawing of this specification sheets and the mark in figure are briefly described:

Fig. 1 is the utility model wheel motor drive device organigram.

Fig. 2 is the utility model drive motor organigram.

Fig. 3 is the utility model retarder organigram.

In figure: 1, tire; 2, wheel hub; 3, brake clamp; 4, brake disc; 5, driving center; 6, hub nut; 7-1, outer bearing; 7-2, neck bearing; 8, reducing gearbox; 9, speed reduction gearing; 10, suspension; 11, bolt; 12, motor front end cover; 13, magnetic links; 14, rotor; 15, sensor; 16, stator; 17, motor casing; 18, planet wheel spindle; 19, satellite gear; 20, pinion carrier; 21, sun wheel; 22, planet carrier output shaft; 23, elasticity hollow pin; 24, inner gear; 25, spline; 26, motor shaft; 27, fixed mount I; 28, motor bearings; 29, fixed mount II.

The specific embodiment

Contrast accompanying drawing below, by the description to embodiment, the specific embodiment of the present utility model is described in further detail.

As shown in Figure 1 to Figure 3, this wheel motor drive device is high speed internal rotor wheel motor drive device, it comprises driving center, retarder and drive motor, driving center 5 is arranged on wheel hub 2, the reducing gearbox 8 of retarder is arranged on the suspension 10 of vehicle, drive motor is arranged on reducing gearbox 8, drive motor is connected sealing with motor front end cover 12 by bolt 11 by motor casing 17, at motor casing 17 internal mains, to be provided with stator 16 and rotor 14, wherein, rotor 14 and stator 16 are all by left, the fixed mount I 27 of right setting and fixed mount II 29 are fixing, at rotor center place, motor shaft 26 is housed, motor bearings 28 is equipped with at these motor shaft 26 two ends, two motor bearingss 28 are installed on respectively fixed mount I 27 and fixed mount II 29, and establish sensor 15 in the outer end of rotor 14, on these rotor 14 outer round surface, be uniform-distribution with a plurality of cylinder magnetic links 13 of being made by rubidium iron boron, on stator 16, adopt three-phase symmetrical motor winding.

The motor front end cover of drive motor is fixed on reducing gearbox and seals retarder, by bolt, motor casing, motor front end cover, reducing gearbox is fixed together.Rotor 14 rotates with motor shaft 26 and rotates, the speed reduction gearing 9 that motor shaft 26 drives in retarder, it is the input shaft of retarder that the sun wheel shaft of sun wheel 21 is fixedly installed on

motor shaft

26, 2 ~ 4 satellite gears 19 are housed between motor shaft 26 and inner gear 24, this satellite gear 19 meshes with sun wheel 21 and inner gear 24 respectively, inner gear 24 is fixed on reducing gearbox 8 by elasticity hollow pin 23, satellite gear 19 is sleeved on planet wheel spindle 18 free to rotate, after sun wheel 21 is rotated with motor shaft 26, because inner gear 24 maintains static, sun wheel 21 drives satellite gear 19 to rotate, satellite gear 19 drives pinion carrier 20 to rotate, due to planet wheel spindle 18, pinion carrier 20 and planet carrier output shaft 22 are structure as a whole, so drive planet carrier output shaft 22 to rotate, and on planet carrier output shaft 22, be provided with spline 25, at reducing gearbox 8 and 22 of this planet carrier output shafts, neck bearing 7-2 is housed, this neck bearing 7-2 is mainly used in supporting the rotation of planet carrier output shaft 22 and bears certain radial weight, planet carrier output shaft is the output shaft of retarder.

In planet carrier output shaft 22 outer ends, be connected with driving center 5, between driving center 5 and planet carrier output shaft 22, use spline 25 connection for transmissions, in the outer end of driving center 5, be provided with hub nut 6, the axial location of these hub nut 6 fixed conveyor hubs 5, the wheel hub 2 at tire 1 place is fixed on driving center 5 wheel hub 2 with its rotation by bolt, between driving center 5 and reducing gearbox 8, outer bearing 7-1 is housed, this outer bearing 7-1 is mainly used in bearing radial weight; Outer round surface at driving center 5 is provided with brake disc 4, and this brake disc 4 is secured by bolts on driving center 5, and brake clamp 3 is housed on brake disc 4, and this brake clamp 3 is fixedly mounted on reducing gearbox 8; When brake clamp 3 action with brake disc 4 frictions, thereby retrain the rotation of driving center 5, finally realize the braking of wheel hub 2.

During this wheel motor drive device work, drive motor drives speed reduction gearing 9, mouth planet carrier output shaft 22 by speed reduction gearing 9 drives driving center 5 and the wheel hub 2 being located thereon to rotate, and by being positioned at brake disc on driving center 54 and being positioned at the service brake that brake clamp 3 on reducing gearbox 8 is realized vehicle, whole reducing gearbox 8 is arranged on vehicle frame by suspension 10, in suffering ground shock process, reducing gearbox 8 together with whole device with suspension 10 bobs.

By reference to the accompanying drawings the utility model is exemplarily described above; obviously the utility model specific implementation is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that design of the present utility model and technical scheme carry out; or without improving, design of the present utility model and technical scheme are directly applied to other occasion, all within protection domain of the present utility model.

Claims

1. a wheel motor drive device, comprise driving center (5), retarder and drive motor, described driving center (5) is arranged on wheel hub (2), it is characterized in that: the reducing gearbox of described retarder (8) is arranged on the suspension (10) of vehicle, the motor front end cover of described drive motor (12) is fixed on the upper sealing of reducing gearbox (8) retarder, the motor shaft of described drive motor (26) is connected with the input shaft of retarder, and the output shaft of retarder is connected with driving center (5).

2. wheel motor drive device as claimed in claim 1, it is characterized in that: in described retarder, be provided with speed reduction gearing, speed reduction gearing is planetary gear reducing mechanism, the sun wheel shaft of planetary gear reducing mechanism is the input shaft of retarder, the planet wheel spindle of planetary gear reducing mechanism (18), pinion carrier (20), planet carrier output shaft (22) are structure as a whole, the output shaft that planet carrier output shaft (22) is retarder.

3. wheel motor drive device as claimed in claim 1, is characterized in that: described driving center (5) is provided with brake disc (4), and described reducing gearbox (8) is provided with the brake clamp (3) suitable with brake disc (4).

4. wheel motor drive device as claimed in claim 1, is characterized in that: described drive motor comprises the stator (16) being fixedly connected with motor casing (17) and be located at the rotor (14) in stator, and rotor (14) is connected with motor shaft (26).

5. wheel motor drive device as claimed in claim 2, it is characterized in that: the corresponding planet carrier output shaft of described driving center (5) is provided with endoporus, corresponding endoporus reducing gearbox (8) is provided with and stretches out cylinder, and stretching out of the endoporus of described driving center and reducing gearbox is provided with bearing between cylinder.

6. wheel motor drive device as claimed in claim 2, is characterized in that: described planet carrier output shaft (22) is connected in driving center (5) by spline (25), and in planet carrier output shaft (22) outside, is provided with hub nut (6) driving center is fixed.