CN103956848A

CN103956848A - Hub bearing motor

Info

Publication number: CN103956848A
Application number: CN201410212567.5A
Authority: CN
Inventors: 严安照; 张以红
Original assignee: ZHEJIANG WANGDEFU MOTOR Co Ltd
Current assignee: ZHEJIANG WANGDEFU MOTOR Co Ltd
Priority date: 2014-05-19
Filing date: 2014-05-19
Publication date: 2014-07-30
Anticipated expiration: 2034-05-19
Also published as: CN103956848B

Abstract

The invention discloses a hub bearing motor. The hub bearing motor comprises a bearing rotating body and a bearing fixing frame which are matched with each other. A step face is arranged on the bearing rotating body, a cavel fixing seat is arranged on the bearing fixing frame, and a convex ring face is arranged between the step face and the cavel fixing seat on the bearing fixing frame. A rotor outer shell is attached to the side, far away from the bearing fixing frame, on the step face, a stator support is clamped between the cavel fixing seat and the convex ring, a stator punching piece is arranged on the outer edge of the stator support, and stator magnetic steel corresponding to a stator is arranged between the stator punching piece and the horizontal end face of the rotor outer shell. The hub bearing motor is safe and reliable, wiring and after-sales repairing are convenient, the service life is long, the motor is started stably, and the torque is large.

Description

Hub bearing motor

Technical field

The present invention relates to electric automobile driving apparatus, be specifically related to a kind of hub bearing motor.

Background technology

Existing car wheel electromotor axle is by wheel hub side shaft, and power line is to introduce from motor shaft central punch, and motor both ends of the surface bearing adopts be common deep groove ball bearing, so in use can have following problem:

1, the size of motor shaft does not have certain standard, and the size of each manufacturer production is different, if want to be installed on car load, need customization special-purpose turn to goat's horn and rear-wheel motor fixed support, its structure is very complicated, and versatility is very poor, is unfavorable for the development of wheel hub motor;

2, general car wheel electromotor axle is fixed on vehicle frame or goat's horn, is all that the mode that adopts nut to tighten is fixed conventionally, and reliability is not good;

3, motor adopts wheel hub side shaft, and the diameter of axle can limit because of electric machine structure, and power line is introduced by motor shaft central punch simultaneously, and the ability to bear of axle and reliability are not good;

4, be arranged on the motor on front-wheel steer goat's horn, fixedly end face distance is oversize to motor wheel hub to turn to goat's horn, and the strong point anti-impact force of axle is poor, and motor is when turning to simultaneously, and tire is to rotate along goat's horn steering pivot, so steering flexibility is poor;

5, existing wheel hub motor bearing is arranged on the end cap of motor two sides, and is common deep groove ball bearing, so between bearing enclose, has certain interval, is particularly arranged on the bearing on wheel hub surface end cap, need bear power axially and radially, and bearing very easily damages.

Summary of the invention

The object of the invention is to overcome above-mentioned the deficiencies in the prior art, a kind of hub bearing motor is provided, safe and reliable, wiring and after-sales service are convenient, long service life, and electric motor starting is steady and moment of torsion is larger.

For achieving the above object, technical scheme of the present invention is: a kind of hub bearing motor, comprise bearing rotary kinetoplast and the bearing fixed mount of working in coordination, described bearing rotary kinetoplast is provided with step surface, described bearing fixed mount is provided with goat's horn holder, on described bearing fixed mount, between step surface and goat's horn holder, be provided with bulge loop face, on described step surface, away from bearing fixed mount side, be fitted with rotor case, between described goat's horn holder and bulge loop face, card is set submounts, described stator support outer rim is provided with stator punching, between the horizontal end face of described stator punching and rotor case, be provided with the rotor magnetic steel corresponding with stator.

Further arrange, on described stator support, away from bulge loop face side, be provided with supporting surface.

Further arrange, the horizontal end face end cooperation of described rotor case is provided with supports end cap, between the Inner edge side of described supports end cap and supporting surface outer edge side, is provided with oil sealing and auxiliary bearing.

Further arrange, between the vertical end face of described rotor case and step surface, by dormant bolt, fix.

Further arrange, between described stator support and bulge loop face, by the first bolt, fix.

Further arrange, described bearing rotary kinetoplast is circumferentially with the second bolt, and described the second bolt and dormant bolt are interspersed.

Further arrange, respectively establish a fixing hole for four jiaos of described goat's horn holder, described fixing hole and the first bolt are interspersed.

Further arrange, described stator support is provided with threading hole, and described threading hole is positioned at the periphery of fixing hole and the first bolt.

Beneficial effect of the present invention: 1, adopt existing automobile hub bearing structure, rotor is fixed on bearing rotary kinetoplast, stator is fixed on bearing bearing fixed mount, wheel hub bearing size is by Automotive Standardization manufacture simultaneously, therefore connected mode is very ripe, fail safe and reliability are higher, and different brands and vehicle all can be used, and are conducive to wheel hub motor future development; 2, wheel hub motor power line is drawn from stator support punching, and installation code attachment plug on through hole, coil of stator of motor lead-in wire and holding wire can directly be welded on connector, make the simpler of motor internal lead-in wire change, automobile connection when assembling and after-sales service is convenient simultaneously, and whole-vehicle wiring and after-sales service efficiency are significantly improved; 3, hub bearing motor is bowl structure, front-wheel steer goat's horn can directly stretch in motor groove, and fixedly end face distance is shorter to wheel hub therefore to turn to goat's horn, and goat's horn steering pivot is substantially in the middle of wheel hub, tyre revolution to time be to rotate along tire central point substantially, therefore turn to very flexible; 4, wheel hub motor stator and rotor adopt hub bearing as support, and hub bearing bearing rotary kinetoplast is that gapless coordinates technique with bearing fixed mount, can bear larger axial and radial load, and bearing is longer useful life; 5, motor stator punching and rotor magnetic steel adopt existing two and take turns vehicle technology, adopt the mode of 63 groove 56 utmost points to design, and stator outer diameter is increased to 308mm simultaneously, notch sectional area increases by 50%, winding enamelled wire radical in parallel increases, and Motor torque is larger, and more steady during starting.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention;

Fig. 2 is the front view of Fig. 1;

Fig. 3 is the rearview of Fig. 1;

Fig. 4 be in Fig. 3 A-A to cutaway view.

In figure: bearing rotary kinetoplast 1, bearing fixed mount 2, step surface 3, goat's horn holder 4, bulge loop face 5, rotor case 6, stator support 7, stator punching 8, rotor magnetic steel 9, supporting surface 10, supports end cap 11, oil sealing 12, auxiliary bearing 13, dormant bolt 14, the first bolt 15, the second bolt 16, threading hole 17, fixing hole 18, horizontal end face 19, vertical end face 20.

Embodiment

Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.

As shown in Figure 1 to 4, a kind of hub bearing motor, comprise bearing rotary kinetoplast 1 and the bearing fixed mount 2 of working in coordination, described bearing rotary kinetoplast 1 is provided with step surface 3, described bearing fixed mount 2 is provided with goat's horn holder 4, hub bearing motor is bowl structure, front-wheel steer goat's horn can directly stretch in motor groove fixing with goat's horn holder 4, fixedly end face distance is shorter to wheel hub to turn to goat's horn, goat's horn steering pivot is substantially in the middle of wheel hub, tyre revolution to time be to rotate along tire central point substantially, turn to very flexible.

On described bearing fixed mount 2, between step surface 3 and goat's horn holder 4, be provided with bulge loop face 5, on described step surface 3, away from bearing fixed mount 2 sides, be fitted with rotor case 6, between described goat's horn holder 4 and bulge loop face 5, card is set submounts 7, adopt existing automobile hub bearing structure, rotor is fixed on bearing rotary kinetoplast 1, stator is fixed on bearing fixed mount 2, wheel hub bearing size is by Automotive Standardization manufacture simultaneously, therefore connected mode is very ripe, fail safe and reliability are higher, different brands and vehicle all can be used, be conducive to wheel hub motor future development, wheel hub motor stator and rotor adopt hub bearing as support simultaneously, and hub bearing rotor 1 and bearing fixed mount 2 coordinate technique for gapless, can bear larger axial and radial load, bearing is longer useful life.

Described stator support 7 outer rims are provided with stator punching 8, between described stator punching 8 and the horizontal end face 19 of rotor case 6, be provided with the rotor magnetic steel corresponding with stator 9, motor stator punching 8 and rotor magnetic steel 9 adopt existing two and take turns vehicle technology, adopt the mode of 63 groove 56 utmost points to design, stator outer diameter is increased to 308mm simultaneously, and notch sectional area increases by 50%, and winding enamelled wire radical in parallel increases, Motor torque is larger, and when starting is more steady.

On described stator support 7, away from bulge loop face 5 sides, be provided with supporting surface 10, the horizontal end face 19 ends cooperations of described rotor case 6 are provided with supports end cap 11, between the Inner edge side of described supports end cap 11 and supporting surface 10 outer edge sides, be provided with oil sealing 12 and auxiliary bearing 13, enhanced leaktightness effect.

Fixing by dormant bolt 14 between the vertical end face 20 of described rotor case 6 and step surface 3, fixing by the first bolt 15 between described stator support 7 and bulge loop face 5, described bearing rotary kinetoplast 1 is circumferentially with the second bolt 16, described the second bolt 16 is interspersed with dormant bolt 14, respectively establish a fixing hole 18 for four jiaos of described goat's horn holder 4, described fixing hole 18 and the first bolt 15 are interspersed, simple in structure, easy accessibility.

Described stator support 7 is provided with threading hole 17, described threading hole 17 is positioned at the periphery of fixing hole 18 and the first bolt 15, wheel hub motor power line is drawn from stator support 7 punchings, and installation code attachment plug, coil of stator of motor lead-in wire and holding wire can directly be welded on connector, make the simpler of motor internal lead-in wire change, automobile connection when assembling and after-sales service is convenient simultaneously, and whole-vehicle wiring and after-sales service efficiency are significantly improved.

Claims

1. a hub bearing motor, comprise bearing rotary kinetoplast (1) and the bearing fixed mount (2) of working in coordination, described bearing rotary kinetoplast (1) is provided with step surface (3), described bearing fixed mount (2) is provided with goat's horn holder (4), it is characterized in that: on described bearing fixed mount (2), be positioned between step surface (3) and goat's horn holder (4) and be provided with bulge loop face (5), described step surface (3) is upper is fitted with rotor case (6) away from bearing fixed mount (2) side, between described goat's horn holder (4) and bulge loop face (5), card is set submounts (7), described stator support (7) outer rim is provided with stator punching (8), between the horizontal end face (19) of described stator punching (8) and rotor case (6), be provided with the rotor magnetic steel corresponding with stator (9).

2. hub bearing motor as claimed in claim 1, is characterized in that: described stator support (7) is upper is provided with supporting surface (10) away from bulge loop face (5) side.

3. hub bearing motor as claimed in claim 1, it is characterized in that: horizontal end face (19) the end cooperation of described rotor case (6) is provided with supports end cap (11), between the Inner edge side of described supports end cap (11) and supporting surface (10) outer edge side, is provided with oil sealing (12) and auxiliary bearing (13).

4. hub bearing motor as claimed in claim 1, is characterized in that: fixing by dormant bolt (14) between the vertical end face (20) of described rotor case (6) and step surface (3).

5. hub bearing motor as claimed in claim 1, is characterized in that: fixing by the first bolt (15) between described stator support (7) and bulge loop face (5).

6. hub bearing motor as claimed in claim 1, is characterized in that: described bearing rotary kinetoplast (1) is circumferentially with the second bolt (16), and described the second bolt (16) is interspersed with dormant bolt (14).

7. hub bearing motor as claimed in claim 1, is characterized in that: respectively establish a fixing hole (18) for four jiaos of described goat's horn holder (4), described fixing hole (18) and the first bolt (15) are interspersed.

8. hub bearing motor as claimed in claim 1, is characterized in that: described stator support (7) is provided with threading hole (17), and described threading hole (17) is positioned at the periphery of fixing hole (18) and the first bolt (15).