CN107933272A - A kind of integrated form planetary gear speed-reduction differential speed motor for new-energy automobile - Google Patents

A kind of integrated form planetary gear speed-reduction differential speed motor for new-energy automobile Download PDF

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Publication number
CN107933272A
CN107933272A CN201711142016.6A CN201711142016A CN107933272A CN 107933272 A CN107933272 A CN 107933272A CN 201711142016 A CN201711142016 A CN 201711142016A CN 107933272 A CN107933272 A CN 107933272A
Authority
CN
China
Prior art keywords
gear
motor
differential
differential mechanism
reducer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201711142016.6A
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Chinese (zh)
Inventor
毛维星
陈亮
殷振鹏
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Air Vehicle Chassis System (zhenjiang) Co Ltd
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Air Vehicle Chassis System (zhenjiang) Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Air Vehicle Chassis System (zhenjiang) Co Ltd filed Critical Air Vehicle Chassis System (zhenjiang) Co Ltd
Priority to CN201711142016.6A priority Critical patent/CN107933272A/en
Publication of CN107933272A publication Critical patent/CN107933272A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT 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
    • B60K1/00Arrangement or mounting of electrical propulsion units
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT 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
    • B60K17/00Arrangement or mounting of transmissions in vehicles
    • B60K17/04Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/043Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
    • B60K17/046Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel with planetary gearing having orbital motion
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT 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
    • B60K17/00Arrangement or mounting of transmissions in vehicles
    • B60K17/04Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/16Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
    • B60K17/165Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing provided between independent half axles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT 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
    • B60K17/00Arrangement or mounting of transmissions in vehicles
    • B60K17/22Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of main drive shafting, e.g. cardan shaft

Abstract

A kind of integrated form planetary gear speed-reduction differential speed motor for new-energy automobile of the present invention, driving motor output end is connected with differential mechanism through gear reducer, driving motor, gear reducer, differential mechanism are become one structure by driving motor housing, decelerator shell, differential mechanism shell and vehicle enclosure, a part as new energy axle shell, it is compact-sized, occupied space is few, significantly reduces overall weight;Differential mechanism inner casing is fixedly connected in output end of reducer, differential mechanism connects vehicle left half axle, right axle shaft respectively by left and right half gear, the rotating speed of motor output is driven after the deceleration of cartridge type planet-gear speed reducer, the moment of torsion that different numerical value are converted to by differential mechanism is respectively delivered to vehicle left half axle, on right axle shaft, realize vehicle left half axle, the driving of right axle shaft differential, both motor or so semiaxis output torque at the same time can have been realized, it can realize differential automatically again, meet the needs of two sidecar wheel different rotating speeds of new-energy automobile.

Description

A kind of integrated form planetary gear speed-reduction differential speed motor for new-energy automobile
Technical field
The present invention relates to a kind of integrated form planetary gear speed-reduction differential speed motor for new-energy automobile.
Background technology
Due to energy consumption and pollution problem getting worse, national policy supports the development of guiding new-energy automobile energetically, with The enhancing of people's environmental consciousness and the lifting of progress especially cruising ability of new-energy automobile manufacturing technology and the drop of cost Low, new-energy automobile development is become better and better.New-energy automobile becomes the following emphasis direction increased of industry, has a vast market Prospect and opportunity;And the dynamic structure in conventional truck transmission system generally drives motor, driving motor via reducer exists Rotating speed is matched between prime mover and working machine or executing agency, transmits torque, to reduce rotating speed, increase torque, planetary gear reduction Fast machine with its small, transmission efficiency, reduction range is wide, precision is high many advantages, such as so that be widely used in servo electricity In the transmission systems such as machine, stepper motor, direct current generator;Conventional planetary gear decelerating motor can only be exported from one end to a direction Moment of torsion, it is impossible to realize both direction forwards, backwards while output torque;Motor in special new-energy automobile, it is impossible to realize to both sides Transmission mechanism transmits the moment of torsion of different numerical value at the same time, and new-energy automobile is compact-sized, still further sets differential mechanism to adjust left and right The speed discrepancy of wheel, motor, gear reducer, differential mechanism each have live spindle, and each live spindle and vehicle axles are not same roots Axis, connection structure is complicated, and amount of parts is more, and volume is necessarily large and bulky, and occupied space is more, and installation operation is cumbersome.
The content of the invention
The technical problem to be solved by the invention is to provide one kind to realize differential automatically while output torque, Compact-sized, small, installation operation is conveniently used for the integrated form planetary gear speed-reduction differential speed motor of new-energy automobile.
The present invention is used for the integrated form planetary gear speed-reduction differential speed motor of new-energy automobile, includes driving motor, it is special Sign is:Driving motor output end is connected with differential mechanism through gear reducer, and driving motor, gear reducer, differential mechanism have motor respectively Shell, decelerator shell, differential mechanism shell, driving motor, gear reducer, differential mechanism arranged in co-axial alignment are set, motor housing, gear reducer Shell, differential mechanism shell and vehicle enclosure become one structure, and differential mechanism also has differential mechanism inner casing, and differential mechanism inner casing is fixed It is connected in output end of reducer;Gear reducer is cartridge type planet-gear speed reducer, and differential mechanism is satellite differential;Difference Installation left and right half gear inside fast device, differential mechanism inner casing coordinates with left and right half gear transmits moment of torsion;Left and right half gear It is connected to vehicle and fixes left half axle, right axle shaft, left half axle, right axle shaft output terminal stretch out outside differential mechanism and vehicle revolver Axis, right wheel axis connection;Cartridge type planet-gear speed reducer is fixed on left half axle by hollow-core construction empty set in vehicle;
The central rotating shaft of the driving motor is hollow-core construction, and also empty set is installed on vehicle fixation left half axle central rotating shaft, in Heart shaft output terminal is stretched into inside gear reducer and is connected with gear reducer inner sun wheel;
The decelerator shell of the cartridge type planet-gear speed reducer is internally provided with planet carrier, planet carrier On planetary gear is installed, planetary gear is engaged with sun gear;
The left half axle output terminal sequentially pass through cartridge type planet-gear speed reducer, drive motor central rotating shaft inner cavity after with Vehicle revolver axis connection;
The central rotating shaft is connected by external splines and sun gear internal spline;
The left half axle, right axle shaft output terminal are provided with ring flange, and stop nut is provided with the outside of ring flange;
The driving motor end has electric motor end cap, and gear reducer has gear reducer end cap.
The present invention is used for the integrated form planetary gear speed-reduction differential speed motor of new-energy automobile, the rotating speed warp of driving motor output After cartridge type planet-gear speed reducer slows down, the moment of torsion that different numerical value are converted to by differential mechanism is respectively delivered to vehicle and fixes On left half axle, right axle shaft, realize vehicle left half axle, the driving of right axle shaft differential, can both realize that motor or so semiaxis exported torsion at the same time Square, and differential can be realized automatically, meet the needs of two sidecar wheel different rotating speeds of new-energy automobile;Drive motor, gear reducer, differential Device is become one structure by driving motor housing, decelerator shell and vehicle enclosure, and one as new energy axle shell Part, compact-sized, occupied space is few, significantly reduces overall weight.
Brief description of the drawings
Fig. 1 is that the embodiment of the present invention is shown for the integrated form planetary gear speed-reduction differential speed motor planar structure of new-energy automobile It is intended to.
Embodiment
As shown in the figure, a kind of integrated form planetary gear speed-reduction differential speed motor for new-energy automobile, includes driving electricity Machine 5, driving 5 output terminal of motor are connected with differential mechanism 15 through gear reducer 8, and driving motor 5, gear reducer 8, differential mechanism 15 have respectively Motor housing 7, decelerator shell 12, differential mechanism shell 16, driving motor 5, gear reducer 8,15 arranged in co-axial alignment of differential mechanism are set, electricity Machine shell 7, decelerator shell 12, differential mechanism shell 16 and vehicle enclosure become one structure, and differential mechanism also has differential mechanism Inner casing, differential mechanism inner casing are fixedly connected on 8 output terminal of gear reducer;Gear reducer 8 is cartridge type planet-gear speed reducer, differential Device 15 is satellite differential;The inside of differential mechanism 15 installation left and right half gear 14, differential mechanism inner casing and left and right half tooth Wheel 14, which coordinates, transmits moment of torsion;Left and right half gear 14 is connected to left half axle 3, right axle shaft 17, and left half axle 3, right axle shaft 17 are defeated Outlet stretches out the outside of differential mechanism 15 and passes through hollow knot with vehicle revolver axis, right wheel axis connection, cartridge type planet-gear speed reducer Structure empty set is fixed on left half axle 3 in vehicle;The rotating speed that motor 5 exports is driven after the deceleration of cartridge type planet-gear speed reducer, The moment of torsion that different numerical value are converted to by differential mechanism 15 is respectively delivered to vehicle left half axle 3, on right axle shaft 17, realizes vehicle left half Axis 3, the driving of 17 differential of right axle shaft, can not only realize motor or so semiaxis output torque, but also can realize differential automatically at the same time, meet new The demand of two sidecar wheel different rotating speeds of energy automobile.
The central rotating shaft 6 of driving motor 5 is hollow-core construction, and the inside of gear reducer 8 and and gear reducer are stretched into 6 one end of central rotating shaft 8 inner sun wheels 9 are connected, and after driving motor 5 powers on, driving motor 5 passes through 6 output torque of central rotating shaft to deceleration On the sun gear 9 of machine 8.
The decelerator shell 12 of cartridge type planet-gear speed reducer is internally provided with planet carrier 11, planetary gear Planetary gear 10 is installed, planetary gear 10 is engaged with sun gear 9 on bearing 11;Driving motor 5 is exported by central rotating shaft 6 Moment of torsion is delivered to slow down on planetary gear 10 and exports through the engagement of sun gear 9.
3 output terminal of left half axle sequentially passes through cartridge type planet-gear speed reducer, drives 6 inner cavity of central rotating shaft of motor 5 Afterwards with vehicle revolver axis connection;Central rotating shaft 6 is connected by external splines and 9 internal spline of sun gear, and connection is reliable, and power passes Pass stabilization.
Left half axle 3,17 output terminal of right axle shaft are provided with ring flange 2, and the outside of ring flange 2 is provided with stop nut 1, passes through method Blue disk 2, stop nut 1 coordinate installation connection vehicle axles.
5 end of driving motor has electric motor end cap 4, and gear reducer 8 has gear reducer end cap 13, and degree of protection is high.
The present invention is used for the integrated form planetary gear speed-reduction differential speed motor of new-energy automobile, the rotating speed warp of driving motor output After cartridge type planet-gear speed reducer slows down, the moment of torsion that different numerical value are converted to by differential mechanism is respectively delivered to vehicle left half On axis, right axle shaft, vehicle left half axle, the driving of right axle shaft differential are realized, can not only realize motor or so semiaxis output torque at the same time, but also Differential can be realized automatically, meet the needs of two sidecar wheel different rotating speeds of new-energy automobile;Driving motor, gear reducer, differential mechanism lead to Motor housing, decelerator shell and the vehicle enclosure of overdriving become one structure, as a part for new energy axle shell, Compact-sized, occupied space is few, significantly reduces overall weight.
The present invention provides a kind of planetary gear speed-reduction differential speed motor of integrated form.It is related to technical field of new energy, It is a kind of new prerequisite mechanism of new-energy automobile vehicle bridge, realizes the right and left after slowing down after motor and export increase at the same time Moment of torsion, realize the function of integrated new new-energy automobile vehicle bridge.Compact-sized, stability is high, security performance It is good, weight can be mitigated significantly, greatly reduce space, it is more economical practical, and maintaining cost is low, applicability is wide.
The purpose of the present invention is for new-energy automobile, achieve the purpose that to improve efficiency, mitigate weight, reduce volume, in fact The planetary gear speed-reduction differential speed motor both sides of existing integrated form export the moment of torsion function of increasing after deceleration differential at the same time, and design is reasonable, It is compact-sized;Both sides output torque, and be suitable for integrated vehicle bridge at the same time.Hollow output shaft deceleration motor housing is A vehicle bridge shell part, mitigates weight, compact-sized.Stability is high, has a safety feature, can substantially reduce volume, mitigate significantly Weight, greatly reduces the cost of input, more economical practical, and maintaining cost is low, and applicability is wide, especially suitable for new Energy automobile vehicle bridge.
The present invention is used for the integrated form planetary gear speed-reduction differential speed motor specific embodiment of new-energy automobile:
The central rotating shaft 6 for driving motor 5 is hollow output shaft, and by powering on, driving motor is exported by hollow output shaft Moment of torsion.
Gear reducer 8 is a kind of cartridge type planet-gear speed reducer, and 8 left end of gear reducer is connected with driving 5 right end of motor, drives 6 external splines of hollow output shaft of dynamic motor is connected with 9 internal spline of sun gear.
Differential mechanism 15 is common planetary gear differential mechanism, and differential mechanism shell 16 is directly connected with output end of reducer, left and right Axle shaft gear 14 is connected with left half axle 3 and right axle shaft 17 respectively.
Motor output torque outputs torque to gear reducer by output hollow shaft 8 and is delivered to gear reducer 12, and gear reducer subtracts Differential mechanism 15 is output torque to after speed, differential mechanism passes through differential, by moment of torsion by left and right half gear 14, is delivered to respectively Left half axle and right axle shaft, realize left and right ends output torque at the same time.
The present invention is used for the integrated form planetary gear speed-reduction differential speed motor advantage of new-energy automobile:
1st, driving motor output speeds are slowed down by planet-gear speed reducer, after differential mechanism differential, are delivered to left and right half Axis, realizes that left and right half output speed is inconsistent.
2nd, the planetary gear speed-reduction differential speed motor of integrated form, motor, gear reducer, differential mechanism is integrated, motor output Moment of torsion, by differential mechanism differential, can not only realize motor or so semiaxis output torque, but also can be automatic at the same time to planet-gear speed reducer Realize differential, meet the needs of two sidecar wheel of new-energy automobile.
3rd, hollow driving motor, hollow planet-gear speed reducer, the one word connection of differential mechanism longitudinal direction, by motor housing, slow down Machine shell and vehicle bridge housing are integrated, compact-sized as a part for new energy axle shell, save space, and weight is big It is big to mitigate.

Claims (7)

1. a kind of integrated form planetary gear speed-reduction differential speed motor for new-energy automobile, includes driving motor(5), its feature It is:Drive motor(5)Output terminal is through gear reducer(8)It is connected with differential mechanism(15), drive motor(5), gear reducer(8), differential Device(15)There is motor housing respectively(7), decelerator shell(12), differential mechanism shell(16), drive motor(5), gear reducer (8), differential mechanism(15)Arranged in co-axial alignment is set, motor housing(7), decelerator shell(12), differential mechanism shell(16)With outside vehicle Shell becomes one structure, and differential mechanism also has differential mechanism inner casing, and differential mechanism inner casing is fixedly connected in output end of reducer;Subtract Fast machine(8)For cartridge type planet-gear speed reducer, differential mechanism(15)For satellite differential;Differential mechanism(15)Inside installation Left and right half gear 14, differential mechanism inner casing and left and right half gear(14)Coordinate and transmit moment of torsion;Left and right half gear(14)Point Vehicle is not connected with fixes left half axle(3), right axle shaft(17), left half axle(3), right axle shaft(17)Output terminal stretches out differential mechanism(15) Exterior and vehicle revolver axis, right wheel axis connection;Cartridge type planet-gear speed reducer is fixed by hollow-core construction empty set in vehicle Left half axle(3)On.
2. it is used for the integrated form planetary gear speed-reduction differential speed motor of new-energy automobile according to claim 1, it is characterised in that: The driving motor(5)Central rotating shaft(6)For hollow-core construction, central rotating shaft(6)Output terminal stretches into gear reducer(8)It is internal and with Gear reducer(8)Inner sun wheel(9)It is connected.
3. it is used for the integrated form planetary gear speed-reduction differential speed motor of new-energy automobile according to claim 1, it is characterised in that: The decelerator shell of the cartridge type planet-gear speed reducer(12)It is internally provided with planet carrier(11), planetary gear Bearing(11)On planetary gear is installed(10), planetary gear(10)With sun gear(9)Engagement.
4. it is used for the integrated form planetary gear speed-reduction differential speed motor of new-energy automobile according to claim 2, it is characterised in that: The left half axle(3)Output terminal sequentially passes through cartridge type planet-gear speed reducer, driving motor(5)Central rotating shaft(6)It is interior After chamber with vehicle revolver axis connection.
5. it is used for the integrated form planetary gear speed-reduction differential speed motor of new-energy automobile according to claim 2, it is characterised in that: The central rotating shaft(6)Pass through external splines and sun gear(9)Internal spline is connected.
6. it is used for the integrated form planetary gear speed-reduction differential speed motor of new-energy automobile according to claim 1, it is characterised in that: The left half axle(3), right axle shaft(17)Output terminal is provided with ring flange(2), ring flange(2)Outside is provided with stop nut(1).
7. it is used for the integrated form planetary gear speed-reduction differential speed motor of new-energy automobile according to claim 1, it is characterised in that: The driving motor(5)End has electric motor end cap(4), gear reducer(8)With gear reducer end cap(13).
CN201711142016.6A 2017-11-17 2017-11-17 A kind of integrated form planetary gear speed-reduction differential speed motor for new-energy automobile Pending CN107933272A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711142016.6A CN107933272A (en) 2017-11-17 2017-11-17 A kind of integrated form planetary gear speed-reduction differential speed motor for new-energy automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711142016.6A CN107933272A (en) 2017-11-17 2017-11-17 A kind of integrated form planetary gear speed-reduction differential speed motor for new-energy automobile

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Publication Number Publication Date
CN107933272A true CN107933272A (en) 2018-04-20

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109109640A (en) * 2018-07-10 2019-01-01 广西汽车集团有限公司 A kind of coaxial-type independent electrical drives bridge and electric car
CN109217575A (en) * 2018-09-26 2019-01-15 沈阳航天新光集团有限公司 Integrated motor
CN114714872A (en) * 2022-03-07 2022-07-08 上海汽车变速器有限公司 Integrated speed reducer, power system of electric automobile and electric automobile
WO2022252431A1 (en) * 2021-06-01 2022-12-08 浙江盘毂动力科技有限公司 Differential and motor highly integrated structure

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109109640A (en) * 2018-07-10 2019-01-01 广西汽车集团有限公司 A kind of coaxial-type independent electrical drives bridge and electric car
CN109109640B (en) * 2018-07-10 2023-12-29 广西汽车集团有限公司 Coaxial independent electric drive bridge and electric automobile
CN109217575A (en) * 2018-09-26 2019-01-15 沈阳航天新光集团有限公司 Integrated motor
CN109217575B (en) * 2018-09-26 2023-09-08 沈阳航天新光集团有限公司 Integrated motor
WO2022252431A1 (en) * 2021-06-01 2022-12-08 浙江盘毂动力科技有限公司 Differential and motor highly integrated structure
CN114714872A (en) * 2022-03-07 2022-07-08 上海汽车变速器有限公司 Integrated speed reducer, power system of electric automobile and electric automobile

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