CN105774526A - Wheel hub motor device capable of outputting high torque and automobile - Google Patents
Wheel hub motor device capable of outputting high torque and automobile Download PDFInfo
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- CN105774526A CN105774526A CN201610269786.6A CN201610269786A CN105774526A CN 105774526 A CN105774526 A CN 105774526A CN 201610269786 A CN201610269786 A CN 201610269786A CN 105774526 A CN105774526 A CN 105774526A
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- 241000239290 Araneae Species 0.000 claims description 13
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 230000010354 integration Effects 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 description 24
- 238000005516 engineering process Methods 0.000 description 15
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
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- 238000005859 coupling reaction Methods 0.000 description 1
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- 238000004134 energy conservation Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K7/0007—Disposition of motor in, or adjacent to, traction wheel the motor being electric
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
- B60K17/08—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing of mechanical type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K2007/0092—Disposition of motor in, or adjacent to, traction wheel the motor axle being coaxial to the wheel axle
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Retarders (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a wheel hub motor device capable of outputting high torque. The wheel hub motor device comprises a wheel hub motor, a first planetary gear row, a second planetary gear row and a wheel rim, wherein the wheel hub motor is provided with a motor outer casing; the first planetary gear row comprises a first sun gear, a first planetary carrier and a first inner gear ring; the first gun gear fixedly sleeves a motor shaft of the wheel hub motor; the second planetary gear row comprises a second sun gear, a second planetary carrier and a second inner gear ring; the second sun gear is connected with the first planetary carrier, and rotates together with the first planetary carrier; the second sun gear is rotationally supported on the motor shaft of the wheel hub motor; the first inner gear ring is fixedly connected with the second planetary carrier, and the second inner gear ring is fixedly connected with the motor outer casing; the wheel rim is connected with the secondary planetary carrier, rotates together with the second planetary carrier, and is used for outputting rotation power. The invention also discloses an automobile. The wheel hub motor device has the advantages that the structure is simple, the implementing of technique is easy, and the integration with the whole automobile is convenient.
Description
Technical field
The present invention relates to hub motor structure field, be specifically related to a kind of hub motor device exporting big torque and automobile.
Background technology
Electric automobile includes hybrid vehicle, fuel cell car, pure electric automobile etc., and it has the feature of energy-saving and environmental protection, is the developing direction of young mobile technology.The electric automobile developed at present is usually in orthodox car chassis and is formed by transformation PWTN.If hybrid vehicle is by adding drive motor in power train and realizing power coupling by power synthesizer and drive automobile.The electric energy that fuel cell car is then electric energy and the supplementary energy utilizing fuel cell to export drives automobile to driving motor supplies power.Pure electric automobile is then provide electrical energy drive automobile by electrokinetic cell for drive motor.In all electric automobile configuration schemes, adopt scheme directly integrated with wheel for motor, i.e. In-wheel motor driving scheme or be called " Electric Motor Wheel ", most beneficial for vehicle performance lifting.In-wheel motor driving technology is to improve a key technology of electric automobile performance, it brings huge advantage to automobile, complete vehicle structure is made to be simplified, each wheel drive force only can realize independent control by drive motor could realize the control of wheel driving force without car load PWTN and braking system to carry out Comprehensive Control as orthodox car, and In-wheel motor driving technology can control technology and realize some advanced technology that orthodox car chassis cannot realize by the better automobile chassis of realisation energy at lower cost.
In-wheel motor driving technology civilian vehicle field abroad has started to enter the products application stage.External Main Auto company all develops In-wheel motor driving automobile, and domestic In-wheel motor driving electric automobile is in the technical research stage.The Development of HEV Technology adopting In-wheel motor driving has become the important development direction of New Generation Military vehicle power actuation techniques.The U.S., Germany, France, Japan etc., all in the research carrying out military Technology of Hybrid Electric Vehicle, all have employed the scheme of In-wheel motor driving+hybrid power bar none.Visible employing In-wheel motor driving has become the important directions of future new era drive system of electric automobile development.Wheel hub motor is then the crucial assembly of this technology, adopts the automobile of this technology to have the advantages such as energy-conservation, high efficiente callback braking energy, complete vehicle structure simplification.
But present In-wheel motor driving torque is not enough, particularly full-sized car is bigger to wheel hub motor torque-demand, and the little application hindering In-wheel motor driving technology of existing wheel hub motor torque.Current car hub motor drives and is generally adopted scheme of directly driving, and the program to export low speed high torque requirement motor and export big electric current, and this makes electric efficiency low, and heat radiation is low, and technically realizes difficulty.For adopting the wheel hub motor scheme of deceleration at present, for the Direct wheel drives bridge of ZF company, there is unreasonable structure in it, take up room the problem cannot being directly integrated with wheel greatly.
Summary of the invention
Based on technical problem of the prior art, an object of the present invention is to provide a kind of hub motor device that can export big torque, the slow-speed of revolution of wheel hub motor, big torque output can be realized, by using double-pinion planetary row's decelerator to make the present invention can obtain bigger gear ratio in limited bulk, solve In-wheel motor driving torque not enough, particularly that full-sized car wheel hub motor torque is little problem.
The two of the purpose of the present invention are by double planetary reduction gear and wheel hub motor Integrated design, make full use of wheel hub motor body plenum, by by embedded for the cavity of double planetary reduction gear Yu motor housing, make device overall space change in size little, with solve prior art uses for obtaining bigger motor torque heavy-duty motor or use integrated with decelerator oversize afterwards cannot with the problem such as wheel is directly integrated.
The present invention can reach electric automobile whole performance requirement in design, particularly adopts In-wheel-motor driving to provide better scheme for full-sized car, has simple in construction, and technology realizes easily, facilitates simultaneously and realizes integrated advantage with car load.
Technical scheme provided by the invention is:
A kind of hub motor device exporting big torque, including:
Wheel hub motor, it has motor housing；
First planet gear is arranged, and it includes the first sun gear, the first row carrier and the first ring gear；
Described first sun gear, the motor shaft of its fixing sheathed described wheel hub motor, for receiving the rotary power of described motor shaft；
Second epicyclic gear train, it includes the second sun gear, the second planet carrier and the second ring gear；
Described second sun gear, it connects described the first row carrier, it is possible to jointly rotate with described the first row carrier；And described second sun gear is rotatably supported on the motor shaft of described wheel hub motor, it is possible to rotate relative to described motor shaft；
Described first ring gear is fixing with described second planet carrier to be connected, and described second ring gear is fixing with described motor housing to be connected；Described motor housing is rotatably supported on described motor shaft；
Wheel rim, it is connected with described second planet carrier, it is possible to rotate with described second planet carrier, for being exported by rotary power.
Preferably, also include: rotor field spider, permanent magnet and rotor core；
Wherein, described rotor field spider is fixed on described motor shaft, and described permanent magnet is fixed on described rotor field spider, and described rotor core is fixed on described motor housing.
Preferably, also including: braking dish, it is fixed with the motor shaft of described wheel hub motor and is connected.
Preferably, the both sides of described motor housing cave inward and form the first cavity and the second cavity, and described second epicyclic gear train is fixed in described first cavity, and described braking dish is arranged in the second cavity of the described motor housing other end；Brake caliper is fixed on described motor housing.
Preferably, described first planet gear row also includes: at least one the first row star-wheel and first planet wheel shaft；
Wherein, described motor shaft is connected by spline with described first sun gear, described the first row star-wheel passes through bearings on described first planet wheel shaft, described first planet wheel shaft is connected by snap ring with described the first row carrier, and a described ring gear and described second planet carrier are bolted to connection.
Preferably, described second epicyclic gear train also includes: at least one second planetary gear and the second planet wheel spindle；
Wherein, described second planet carrier and described second planet wheel spindle are locked by snap ring.
Preferably, the described exclusive side of first planet gear is provided with decelerator end cap, described motor housing is provided with right end cap towards described braking dish side, described motor shaft passes described motor housing, one end is rotatably supported on the decelerator end cap of the described exclusive side of first planet gear, and the other end is rotatably supported on the right end cap of described motor housing；And
Rotated by taper roll bearing between described motor shaft and described end cap and support.
Preferably, described motor housing is provided with left end cap towards described second epicyclic gear train, and itself and described second ring gear removably connect, and described left end cap is supported on described second planet carrier by taper roll bearing.
Preferably, described planetary gear is respectively provided with 3, is distributed on respectively on described planet carrier.
A kind of automobile, uses described hub motor device to be driven.
The present invention is had the advantages that compared with prior art
1, the wheel hub motor with double reduction device of the present invention passes through the In-wheel motor driving technology of electric automobile of the integration realization to wheel hub motor and double reduction device, solve In-wheel motor driving torque not enough, particularly that full-sized car wheel hub motor torque is little problem；
2, the wheel hub motor of exportable big torque of the present invention is by making full use of wheel hub motor body plenum to the Integrated design of double reduction device and wheel hub motor, and after making integrated double reduction device, the change of complete machine bulk is little, can directly and wheel integrated.The electric automobile whole structure making this wheel hub motor of equipment is greatly simplified, it is not necessary to complicated power train.The brake that motor rear end is arranged simultaneously is due to the increasing torsion effect of double reduction device, it is possible to brake is reduced and inserts motor rear end cavity, be braked additionally, due to available motor regenerative braking torque, reduce the torque load of brake.Therefore with little brake, brake can be reduced and take up room.
Accompanying drawing explanation
Fig. 1 is the front view of the internal structure of the wheel hub motor with double reduction device of the present invention；
Fig. 2 is the front view of the internal structure of motor of the wheel hub motor with double reduction device of the present invention；
Fig. 3 is the front view of the double reduction device structure of the wheel hub motor with double reduction device of the present invention；
Fig. 4 a is the motor shaft structure front view of the wheel hub motor with double reduction device of the present invention；
Fig. 4 b is the motor shaft structure left view of the wheel hub motor with double reduction device of the present invention；
Fig. 4 c is the profile at A-A place in Fig. 4 b；
Fig. 5 a is the second sun gear structural front view of the wheel hub motor with double reduction device of the present invention；
Fig. 5 b is the profile at A-A place in Fig. 5 a；
Fig. 6 a is the second planet carrier structure front view of the wheel hub motor with double reduction device of the present invention；
Fig. 6 b is the rotation profile at A-A place in Fig. 6 a；
Fig. 7 a is the motor right end cap structural front view of the wheel hub motor with double reduction device of the present invention；
Fig. 7 b is the profile at A-A place in Fig. 7 a；
Fig. 8 a is the motor left end cap structural front view of the wheel hub motor with double reduction device of the present invention；
Fig. 8 b is the profile at A-A place in Fig. 8 a；
Fig. 9 a is the planet wheel spindle snap ring front view of the wheel hub motor with double reduction device of the present invention；
Fig. 9 b is the planet wheel spindle snap ring left view of the wheel hub motor with double reduction device of the present invention.
nullIn figure: 1. motor housing，2. motor housing connecting bolt，3. motor housing right end cap，4. rotor core，5. permanent magnet，6. rotor field spider，7. brake caliper connecting bolt，8. pad，9. brake caliper，10. right side end ring felt collar，11. braking dish connects flat key，12. motor shaft，13. nut fixed by braking dish，14. nut shim fixed by braking dish，15. braking dish，16. right side end ring，17. right side end ring attachment screw，18. right circles taper roller bearing fixes nut，19. right circles taper roller bearing，20. motor shaft and rotor field spider attachment screw，21. small end cover felt collar on the left of motor，22. wheel rim，23. small end cover on the left of motor，24. planet carrier on the right side of in the of second，25. the second sun gear，26. motor housing left end cap and electric machine casing connecting bolt，27. electric machine casing and the second ring gear connecting bolt，28. the second planet carrier，29. the first row carrier，30. the first row carrier and the second sun gear attachment screw，31. the first ring gear and the second planet carrier connecting bolt，32. the first decelerator left end cap，33. left circles taper roller bearing，34. left side bearing (ball) cover attachment screw，35. left circles taper roller bearing fixes nut，36. left side bearing (ball) cover，37. left circles taper roller bearing abutment sleeve，38. the first sun gear，39. the first row star-wheel，40. first planet wheel shaft，41. first planet wheel shaft snap ring screw，42. first planet wheel shaft snap ring，43. first planet wheel bearing，44. first planet wheel bearing abutment sleeve，45. the first ring gear，46. wheel rim end cap，47. wheel rim attaching nut，48. wheel rim、Wheel rim end cap and the second planet carrier connecting bolt，49. the second planet wheel spindle，50. motor support taper roll bearing，51. motor housing left end cap，52. the second planet wheel bearing，53. the second planet wheel bearing abutment sleeve，54. the second planetary gear，55. the second ring gear，56. the second planet wheel spindle snap ring，57. the second planet wheel spindle snap ring screw.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail, to make those skilled in the art can implement according to this with reference to description word.
As shown in Figure 1, for realizing above-mentioned functions, the invention provides a kind of hub motor device exporting big torque, of the present invention can export the slow-speed of revolution, the hub motor structure of big torque adopts inner-rotor-type structure, and utilize the embedded spatially integrate Two-stage Planet Gear Reducer of rotor, the large speed ratio deceleration realized in the confined space increases torsion, its speed ratio can regulate between 7-23, meet all kinds of automobile torque-demand, wherein, motor body includes motor housing, permanent magnet, rotating shaft and rotor assembly, cave inward before and after motor housing, embed internal rotor space, motor shaft two ends are protruding, right-hand member is connected with braking dish, left end connects double reduction device sun gear.
Planetary gear reducing mechanism is made up of two-stage planet row；Wherein, first planet gear of the present invention row is made up of first sun gear, three the first row star-wheels, first planet wheel shaft, first ring gear and the first row carrier.First planet gear row sun gear be connected by spline with motor shaft, planetary gear is connected by first planet wheel shaft with planet carrier, and the first row carrier be bolted on the second sun gear together with rotate；Second epicyclic gear train of the present invention is made up of second sun gear, three the second planetary gears, the second planet wheel spindle, second ring gear and the second planet carrier.The sun gear empty set of the second epicyclic gear train is on motor shaft, and the second planet carrier and the first ring gear are bolted and are fixed together, and simultaneously it stretches out flange outer rim and is fixed together further through tire bolt and rim for automobile wheel.Second ring gear is fixed together by bolt and motor housing, for fixture；Whole second epicyclic gear train is embedded in the cavity of motor casing front end, braking dish is arranged in the cavity of motor rear end simultaneously, braking dish is fixedly connected with a motor shaft together, and brake caliper is fixed on motor housing, and braking dish is identical with orthodox car brake with card wrench structure.
nullFurther instruction，As shown in Figure 1，Wheel hub motor has motor housing 1，The first sun gear 38 is drawn together in first planet gear package、The first row carrier 29 and the first ring gear 45，Wherein，First sun gear 38 connects the motor shaft 12 of wheel hub motor，For receiving the rotary power of motor shaft 12，Second epicyclic gear train includes the second sun gear 25，Second planet carrier 28 and the second ring gear 55，Wherein，Second sun gear 25 connects the first row carrier 29，Jointly can rotate with the first row carrier 29，And the second sun gear 25 is rotatably supported on the motor shaft 12 of wheel hub motor，Can rotate relative to motor shaft 12，First ring gear 45 is fixing with the second planet carrier 28 to be connected，Second ring gear 55 is fixing with motor housing 1 to be connected，Motor housing 1 is rotatably supported on motor shaft 12，Wheel rim 22 is connected with the second planet carrier 28，And can rotate with the second planet carrier 28，For outputing power，Final driving vehicle travels.
In another kind of embodiment, also including in hub motor structure: rotor field spider 6, permanent magnet 5 and rotor core 4, wherein, rotor field spider 6 is fixed on the motor shaft 12 of wheel hub motor, permanent magnet 5 is embedded on rotor field spider 4, and rotor core 4 is fixed on motor housing 1.
In another kind of embodiment, also including braking dish 15 in hub motor structure, braking dish 15 is fixing with the motor shaft 12 of wheel hub motor to be connected.
In another kind of embodiment, the inward at both ends depression of motor housing 1 forms the first cavity and the second cavity, second epicyclic gear train is embedded in first cavity of motor housing 1 one end, braking dish 15 is arranged in the second cavity of motor housing 1 other end, is fixed on motor housing 1 by brake caliper 9.
In another kind of embodiment, first planet gear row also include: at least one the first row star-wheel 39 and first planet wheel shaft 40, wherein, the motor shaft 12 of wheel hub motor is connected by spline with the first sun gear 38, the first row star-wheel 39 passes through bearings on first planet wheel shaft 40, first planet wheel shaft 40 is connected by first planet wheel shaft snap ring 42 with the first row carrier 29, and the first ring gear 45 and the second planet carrier 28 are bolted to connection.
In another kind of embodiment, the second epicyclic gear train also includes: at least one second planetary gear 54 and second planet wheel spindle 49；
Wherein, the second planet carrier 28 and the second planet wheel spindle 49 are locked by the second planet wheel spindle snap ring 56.
In another kind of embodiment, the exclusive side of first planet gear is provided with the first decelerator left end cap 32, motor housing is provided with motor housing right end cap 3 towards described braking dish side, the motor shaft 12 traverse motor housing 1 of wheel hub motor, one end is rotatably supported on the first decelerator left end cap 32 of the exclusive side of first planet gear, and the other end is rotatably supported on motor housing right end cap 3；And rotate support each through taper roll bearing between motor shaft 12 and the first decelerator left end cap 32 and motor housing right end cap 3.
In another kind of embodiment, motor housing 1 is provided with motor housing left end cap 51 towards the second epicyclic gear train, and itself and the second ring gear 55 are bolted, and motor housing left end cap 51 is supported on the second planet carrier 28 by taper roll bearing.
In another kind of embodiment, the first row star-wheel 39 and the second planetary gear 54 are disposed as 3, are distributed on respectively on described planet carrier.
Present invention also offers a kind of automobile, use hub motor device of the present invention to be driven automobile.
Embodiment
In conjunction with accompanying drawing 1～9, the present invention is described in further detail below, to make those skilled in the art can implement according to this with reference to description word.
It is the wheel hub motor assembly structure of the integrated double reduction device of the present invention as shown in Figure 1, Fig. 9 a, Fig. 9 b show planet wheel spindle Snap ring structure of the present invention, motor shaft 12 is connected by spline with the first sun gear 38, the first row star-wheel 39 is supported on first planet wheel shaft 40 by first planet wheel bearing 43, first planet wheel bearing 43 is positioned by first planet wheel bearing abutment sleeve 44, first planet wheel shaft 40 is connected by first planet wheel shaft snap ring 42 with the first row carrier 29, first planet wheel shaft snap ring 42 is connected by first planet wheel shaft snap ring screw 41 with the first row carrier 29.The first row carrier 29 is connected with the second sun gear attachment screw 30 by the first row carrier with the second sun gear 25, second planetary gear 54 is supported on the second planet wheel spindle 49 by the second planet wheel bearing 52, and the second planet wheel bearing 52 is positioned by the second planet wheel bearing abutment sleeve 53.On the right side of in the of second, planet carrier 24 and the second planet wheel spindle 49 are locked by the second planet wheel spindle snap ring 56, and the second planet wheel spindle snap ring 56 is connected by the second planet wheel spindle snap ring screw 57 with planet carrier on the right side of in the of second 24.Second planet carrier 28 passes through wheel rim with wheel rim 22, wheel rim end cap and the second planet carrier connecting bolt 48 and wheel rim attaching nut 47 are rigidly connected, second ring gear 55 is then linked together with motor housing left end cap 51 by electric machine casing and the second ring gear connecting bolt 27, motor shaft 12 left end is supported on the first decelerator left end cap 32 by left circles taper roller bearing 33, motor shaft 12 and the fixing nut 35 of left circles taper roller bearing are threaded connection that blend compounds is locking fixes left circles taper roller bearing 33 left end, bearing right-hand member is axially positioned by left circles taper roller bearing abutment sleeve 37.The left side bearing (ball) cover 36 of motor shaft 12 high order end is connected together sealing function by left side bearing (ball) cover attachment screw 34 and the first decelerator left end cap 32, and whole decelerator is carried out sealing by wheel rim end cap 46 to be protected.Motor shaft 12 right-hand member is supported on motor housing right end cap 3 by right circles taper roller bearing 19, and is threaded connection with the fixing nut 18 of right circles taper roller bearing and fixes right circles taper roller bearing 19 right-hand member.Motor housing left end cap 51 is supported on the second planet carrier 28 by motor support taper roll bearing 50, and on the left of right side end ring felt collar 10 and motor, motor is sealed by small end cover felt collar 21.Brake caliper 9 is fixed on motor housing right end cap 3 by pad 8 and brake caliper connecting bolt 7.Braking dish 15 is fixed on motor shaft 12 by the fixing nut shim 14 of braking dish and the fixing nut 13 of braking dish.
It is the hub motor structure of the present invention as shown in Figure 2, motor housing left end cap 51 is linked together with electric machine casing connecting bolt 26 and motor housing 1 by motor housing left end cap, is connected with small end cover 23 on the left of the second ring gear 55 and motor further through electric machine casing and the second ring gear connecting bolt 27 simultaneously.Motor housing right end cap 3 is linked together by motor housing connecting bolt 2 and motor housing 1.Permanent magnet 5 is embedded on rotor field spider 6, and rotor core 4 is attached on motor housing 1.Rotor assembly is fixed on motor shaft 12 by motor shaft and rotor field spider attachment screw 20.Right side end ring 16 is enclosed within motor shaft 12 front end and is connected on motor casing right end cap 3 by right side end ring attachment screw 17, and the fixing nut 18 of right circles taper roller bearing is threaded connection with motor shaft 12 and fixes right circles taper roller bearing 19 right-hand member.
It is the double reduction device structure of the present invention as shown in Figure 3, motor shaft 12 is connected by spline and the first sun gear 38, second sun gear 25 is enclosed within motor shaft 12 and is connected with the second sun gear attachment screw 30 by the first row carrier with the first row carrier 29, and the first decelerator left end cap 32 is connected with the first ring gear 45 and the second planet carrier 28 by the first ring gear and the second planet carrier connecting bolt 31.
Such as the structure that accompanying drawing 4a～4c is motor shaft 12, left side screw thread a and the threaded engagement on the fixing nut 35 of left circles taper roller bearing, spline on spline b and the first sun gear 38 is connected, blind hole f on the middle shaft shoulder coordinates with the screwed hole on rotor assembly, right-hand member keyway e is connected flat key 11 interference fit with the keyway on braking dish 15 by braking dish and connects, screw thread c and the threaded engagement on the fixing nut 18 of right circles taper roller bearing, rightmost side screw thread d coordinates with the fixing nut 13 of braking dish.
As accompanying drawing 5a, Fig. 5 b show the structure of the second sun gear 25, its empty set is on motor shaft 12, and left end through hole coordinates with the screwed hole in the first row carrier 29.
As accompanying drawing 6a, Fig. 6 b show the structure of the second planet carrier 28, the through hole on the through hole of right side bolt hole a and the first ring gear 45 outer rim and the first decelerator left end cap 32 coordinates.Through hole b is the axis hole of the second planet wheel spindle 49, and through hole d coordinates with the through hole on wheel rim 22.Step c coordinates with motor support taper roll bearing 50 inner edge, and motor support taper roll bearing 50 is used for supporting motor housing 1.
As accompanying drawing 7, Fig. 7 b show the structure of end cap 3 on the right side of motor, bolt hole c about coordinates with the hole on electric machine casing 1.Screw hole a on middle macropore flange coordinates with the hole on right-hand member end ring 16, and boss b is for the location to right circles taper roller bearing 19.
As accompanying drawing 8a, Fig. 8 b show the structure of motor housing left end cap 51, the through hole a of outer rim coordinates with the bolt hole on motor housing 1, through hole on inner edge bolt hole b and the second ring gear 55 and on the left of motor the screwed hole on small end cover 23 coordinate, the boss c of middle macropore is for the location of middle circle taper roller bearing.
Specific works mode
Below in conjunction with Fig. 1, working method of the present invention is described in detail:
Consulting Fig. 1, the hub motor structure with double reduction device described in invention is wheeled construction parts on the whole, mainly double reduction device and wheel hub motor is integrated in wheel rim 22 inner chamber.Motor housing 1 and suspension are fixed, the first coupled sun gear 38 is driven to rotate by spline when motor shaft 12 rotates, owing to the first ring gear 45 is fixed together with wheel rim 22, so the first row star-wheel 39 drives the first row carrier 29 to rotate by first planet wheel shaft 40, the first row carrier 29 drives the empty set the second sun gear 25 on motor shaft 12 to rotate by the first row carrier and the second sun gear attachment screw 30, now owing to the second ring gear 55 maintains static with motor housing 1, so the second planetary gear 54 drives the second planet carrier 28 to rotate by the second planet wheel spindle 49, second planet carrier 28 passes through wheel rim with wheel rim 22, wheel rim end cap and the second planet carrier connecting bolt 48 connect together, thus driving wheel rim 22 to rotate, final driving vehicle travels.
During braking, make motor shaft 12 slow down by the braking dish 15 of braking motor axle 12 right-hand member, finally make car braking.
Although embodiment of the present invention are disclosed as above, but listed utilization that it is not restricted in description and embodiment, it can be applied to various applicable the field of the invention completely, for those skilled in the art, it is easily achieved other amendment, therefore, under the general concept limited without departing substantially from claim and equivalency range, the present invention is not limited to specific details and shown here as the legend with description.
Claims (10)
1. the hub motor device exporting big torque, it is characterised in that including:
Wheel hub motor, it has motor housing；
First planet gear is arranged, and it includes the first sun gear, the first row carrier and the first ring gear；
Described first sun gear, the motor shaft of its fixing sheathed described wheel hub motor, for receiving the rotary power of described motor shaft；
Second epicyclic gear train, it includes the second sun gear, the second planet carrier and the second ring gear；
Described second sun gear, it connects described the first row carrier, it is possible to jointly rotate with described the first row carrier；And described second sun gear is rotatably supported on the motor shaft of described wheel hub motor, it is possible to rotate relative to described motor shaft；
Described first ring gear is fixing with described second planet carrier to be connected, and described second ring gear is fixing with described motor housing to be connected；Described motor housing is rotatably supported on described motor shaft；
Wheel rim, it is connected with described second planet carrier, it is possible to rotate with described second planet carrier, for being exported by rotary power.
2. the hub motor device exporting big torque as claimed in claim 1, it is characterised in that also include: rotor field spider, permanent magnet and rotor core；
Wherein, described rotor field spider is fixed on described motor shaft, and described permanent magnet is fixed on described rotor field spider, and described rotor core is fixed on described motor housing.
3. the hub motor device exporting big torque as claimed in claim 2, it is characterised in that also include: braking dish, it is fixed with the motor shaft of described wheel hub motor and is connected.
4. the hub motor device exporting big torque as claimed in claim 3, it is characterized in that, the both sides of described motor housing cave inward and form the first cavity and the second cavity, described second epicyclic gear train is fixed in described first cavity, and described braking dish is arranged in the second cavity of the described motor housing other end；Brake caliper is fixed on described motor housing.
5. the hub motor device exporting big torque as according to any one of claim 1-4, it is characterised in that described first planet gear row also include: at least one the first row star-wheel and first planet wheel shaft；
Wherein, described motor shaft is connected by spline with described first sun gear, described the first row star-wheel passes through bearings on described first planet wheel shaft, described first planet wheel shaft is connected by snap ring with described the first row carrier, and a described ring gear and described second planet carrier are bolted to connection.
6. the hub motor device exporting big torque as claimed in claim 5, it is characterised in that described second epicyclic gear train also includes: at least one second planetary gear and the second planet wheel spindle；
Wherein, described second planet carrier and described second planet wheel spindle are locked by snap ring.
7. the hub motor device exporting big torque as claimed in claim 3, it is characterized in that, the described exclusive side of first planet gear is provided with decelerator end cap, described motor housing is provided with right end cap towards described braking dish side, described motor shaft passes described motor housing, one end is rotatably supported on the decelerator end cap of the described exclusive side of first planet gear, and the other end is rotatably supported on the right end cap of described motor housing；And
Rotated by taper roll bearing between described motor shaft and described end cap and support.
8. the hub motor device exporting big torque as claimed in claim 7, it is characterized in that, described motor housing is provided with left end cap towards described second epicyclic gear train, itself and described second ring gear removably connect, and described left end cap is supported on described second planet carrier by taper roll bearing.
9. the hub motor device exporting big torque as claimed in claim 1, it is characterised in that described planetary gear is respectively provided with 3, is distributed on respectively on described planet carrier.
10. an automobile, it is characterised in that use the hub motor device as described in claim 1-9 to be driven.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610269786.6A CN105774526B (en) | 2016-04-27 | 2016-04-27 | A kind of hub motor device and automobile exporting big torque |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610269786.6A CN105774526B (en) | 2016-04-27 | 2016-04-27 | A kind of hub motor device and automobile exporting big torque |
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| CN105774526A true CN105774526A (en) | 2016-07-20 |
| CN105774526B CN105774526B (en) | 2019-03-15 |
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| CN201610269786.6A Expired - Fee Related CN105774526B (en) | 2016-04-27 | 2016-04-27 | A kind of hub motor device and automobile exporting big torque |
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| CN107128162A (en) * | 2017-06-28 | 2017-09-05 | 吉林大学 | A kind of heavy-duty vehicle Electric Motor Wheel assembly apparatus and automobile |
| CN109017271A (en) * | 2018-10-10 | 2018-12-18 | 核心驱动科技（金华）有限公司 | A kind of electric car and its power drive unit |
| CN109130837A (en) * | 2018-09-13 | 2019-01-04 | 吉林大学 | A kind of electronic wheel apparatus of low-speed big and automobile |
| CN109398069A (en) * | 2018-10-29 | 2019-03-01 | 山东理工大学 | A kind of integrated form external rotor electric wheels integral structure and assembly method |
| CN113147362A (en) * | 2021-04-25 | 2021-07-23 | 湖南力行动力科技有限公司 | Light-weight connecting method and device based on limited space driving motor and speed reducer |
| CN114211951A (en) * | 2021-12-21 | 2022-03-22 | 吉林大学 | Take electronic round of structure of reduction gear |
| CN114499039A (en) * | 2022-04-02 | 2022-05-13 | 吉林大学 | Wheel assembly integrating brake, hub motor and planetary reducer |
| CN116552236A (en) * | 2023-04-19 | 2023-08-08 | 东南大学 | Power transmission device for in-wheel motor driving unit |
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| CN116552236A (en) * | 2023-04-19 | 2023-08-08 | 东南大学 | Power transmission device for in-wheel motor driving unit |
| CN116552236B (en) * | 2023-04-19 | 2023-12-12 | 东南大学 | Power transmission device for in-wheel motor driving unit |
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