CN101602326A - A kind of differential retarder - Google Patents

A kind of differential retarder Download PDF

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Publication number
CN101602326A
CN101602326A CNA2009101440493A CN200910144049A CN101602326A CN 101602326 A CN101602326 A CN 101602326A CN A2009101440493 A CNA2009101440493 A CN A2009101440493A CN 200910144049 A CN200910144049 A CN 200910144049A CN 101602326 A CN101602326 A CN 101602326A
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CN
China
Prior art keywords
retarder
diff
shaft
differential
motor
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
CNA2009101440493A
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Chinese (zh)
Inventor
马威
康军波
崔长友
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Chery Automobile Co Ltd
Original Assignee
Chery Automobile 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 Chery Automobile Co Ltd filed Critical Chery Automobile Co Ltd
Priority to CNA2009101440493A priority Critical patent/CN101602326A/en
Publication of CN101602326A publication Critical patent/CN101602326A/en
Pending legal-status Critical Current

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Abstract

The present invention relates to a kind of differential retarder, comprise electrical motor, reducer shell, sun and planet gear, a diff and a left side, right driving axle, the output shaft of described motor is the toothed hollow shaft of a front end, be connected with sun and planet gear, and as sun wheel, described planetary outer ring is fixed on the described reducer shell, planetary gear carrier is connected with described differential casing, differential casing is connected with reducer shell with motor shaft respectively by bearing, the mouth of two axle side gears is connected to left and right sides driveshaft end in the diff, wherein left driving shaft needs to pass from motor shaft and could be connected with diff, and be connected with the motor rear end housing by bearing, described motor shaft, diff, the all coaxial setting of left and right sides axle drive shaft, whole speed reducer assembly is connected with motor by bolt.The present invention has compact conformation, output torque is big, driving efficiency is high, volume is little, in light weight, characteristics such as lubricity is good.

Description

A kind of differential retarder
Technical field
The present invention relates to a kind of differential retarder, be specifically related to a kind of retarder that can use on three-wheel vehicle or four-wheeled.
Background technology
Current, general automobile still adopts traditional internal combustion engine drive, but along with the continuous quilt of the energy is exploited, the continuous deterioration of natural environment, hybrid vehicle, new-energy automobile more and more have been subjected to automobile manufacturing company and customer's attention, and become a direction of development of automobile gradually, as electronlmobil.But because the electric vehicle structure complexity, design difficulty is bigger, and the volume and the structure situation of each parts proposed new requirement.The orthodox car change-speed box is generally the secondary transmission, be that input shaft, output shaft, three of difies are arranged in parallel, power spreads out of through input shaft, output shaft, diff, axle drive shaft successively, make that the change-speed box volume is bigger, it is relatively more difficult when car load is arranged, and it is bigger that internal lubricating system is influenced by the change-speed box volume, if electronlmobil is still continued to use this situation, the car load condition is difficult to satisfy.
In sum, have following technical matters in the prior art: three of input and output shaft and difies are arranged in parallel in the prior art, cause the change-speed box volume big, difficult arrangement.
Summary of the invention
The object of the present invention is to provide a kind of differential retarder, its motor shaft, diff and left and right sides axle drive shaft three coaxial arrangement.
Motor shaft is designed to hollow shaft, and tooth is arranged in Front-end Design, directly use as the sun wheel of planetary gear speed reducing mechanism, retarder inside is provided with the fixedly planetary gear speed reducing mechanism of outer ring of a cover, pinion carrier directly is connected with differential casing as the clutch end of speed reduction gearing, left driving shaft passes motor shaft from the motor left side and is connected with diff, right driving axle directly is connected with diff, behind the electrical power, power passes through motor shaft, planetary gear reducing mechanism, diff, axle drive shaft successively, realizes having the takeoff output of deceleration and differential function.
Novel differential retarder of the present invention, comprise electrical motor, reducer shell, sun and planet gear, a diff and a left side, right driving axle, the output shaft of described motor is the toothed hollow shaft of a front end, be connected with sun and planet gear, and as sun wheel, described planetary outer ring is fixed on the described reducer shell, planetary gear carrier is connected with described differential casing, differential casing is connected with reducer shell with motor shaft respectively by bearing, the mouth of two axle side gears is connected to left and right sides driveshaft end in the diff, wherein left driving shaft needs to pass from motor shaft and could be connected with diff, and be connected with the motor rear end housing by bearing, described motor shaft, diff, the all coaxial setting of left and right sides axle drive shaft, whole speed reducer assembly is connected with motor by bolt.
Described reducer shell is divided into left shell and right shell body, and left shell is connected with motor by bolt, and right shell body is connected with left shell by bolt, and the gear cavity of formation that is situated between.Described speed reduction gearing is a fixedly outer ring type compound planet gear of a cover, sun wheel and motor shaft are made of one, the outer ring is by being bolted on the retarder left shell, a plurality of planetary wheels are fixed on the planetary gear carrier, and mesh with motor output shaft and outer ring simultaneously, planetary gear carrier and described differential casing pass through bolted connection.Described diff is made up of planetary wheel, compensating-gear shaft and axle side gear, planetary wheel and axle side gear are meshing with each other, planetary wheel is sleeved on the compensating-gear shaft, and intermesh with axle side gear, and be installed in differential casing inside, differential casing is connected with the differential right housing body with motor output shaft respectively by bearing, and the axle side gear outside is connected with right driving axle with left driving shaft respectively.Be equipped with oil sealing at right shell body and right driving axle junction and left shell and motor shaft junction, in described gear cavity, be marked with lubricating oil or gear oil.
Concrete technical scheme is as follows:
A kind of differential retarder comprises motor, retarder, left driving shaft and right driving axle, the motor output shaft of motor and the diff of retarder, the coaxial setting of left and right sides axle drive shaft.
Described motor output shaft is a hollow shaft, and left driving shaft passes described motor output shaft and is connected with diff, and right driving axle directly is connected with diff.
Be provided with planetary gear speed reducing mechanism in the described retarder, its outer ring is fixed on the described reducer shell, and the planetary gear carrier of this planetary gear speed reducing mechanism is connected with the housing of described diff, and the housing of diff is connected with reducer shell with motor output shaft respectively.
The motor output shaft Front-end Design has tooth to be connected with planetary gear speed reducing mechanism, as its sun wheel.
The housing of diff is connected with reducer shell with motor output shaft respectively by bearing, and retarder is connected with motor by bolt.
Described motor comprises electric machine casing and is arranged on this housing interior rotor and described motor output shaft.
Described retarder comprises housing and is arranged on housing interior planetary gear speed reducing mechanism and diff, this planetary gear speed reducing mechanism and diff and the coaxial setting of motor output shaft.
Described planetary gear speed reducing mechanism comprises outer ring, satellite gear, planet wheel spindle and planetary gear carrier, the outer ring is fixed on the reducer shell, satellite gear one side and outer ring engagement, the tooth engagement of opposite side and motor output shaft front end, planetary gear carrier connects a plurality of satellite gears, makes its orderly motion.
Described diff comprises differential casing and is arranged on housing interior planetary wheel, compensating-gear shaft and axle side gear, differential casing is connected with planetary gear carrier, planetary wheel is sleeved on the compensating-gear shaft, and be meshed with axle side gear, differential casing is connected with reducer shell with motor output shaft respectively, and the axle side gear outside is connected with right driving axle with left driving shaft respectively.
Described reducer shell is divided into left shell and right shell body, and left shell is connected with motor by bolt, and right shell body is connected with left shell by bolt, the middle gear cavity that forms.
The junction of the junction of right shell body and right driving axle and left shell and motor output shaft is equipped with oil sealing, is marked with lubricating oil or gear oil in described gear cavity.
The outer ring is by being bolted on the retarder left shell, and differential casing is connected with planetary gear carrier by bolt, and wherein left driving shaft is connected with side gears, and is connected with electric machine casing by bearing.
Compare with present prior art, the present invention is slowed down by planetary mechanism, with motor shaft, diff and left and right sides axle drive shaft three coaxial arrangement, compact conformation, lubricity is good, the reliability height can increase the moment of torsion of output when realizing deceleration after adopting speed reduction gearing greatly, and the existence of diff makes vehicle more steady safety when turning driving.
Description of drawings
Fig. 1 is the novel differential retarder of a present invention structural scheme of mechanism
The specific embodiment
Describe the present invention with reference to the accompanying drawings below, it is a kind of preferred embodiment in the numerous embodiments of the present invention.
As shown in Figure 1, a kind of novel differential retarder, comprise motor 1, retarder 2, left driving shaft 3, right driving axle 4, planetary gear speed reducing mechanism 5 and diff 6, described retarder 2 is by being bolted on the electric machine casing 11, the output shaft 13 of rotor 12 is designed to hollow shaft, and Front-end Design has tooth.Described retarder 2 comprises retarder left shell 21, right shell body 22, planetary gear speed reducing mechanism 5 and diff 6, planetary gear speed reducing mechanism 5, diff 6 all with described motor output shaft 13 coaxial settings, planetary gear speed reducing mechanism 5 comprises outer ring 51, satellite gear 52, planet wheel spindle 53 and planetary gear carrier 54, outer ring 51 is by being bolted on the retarder left shell 21, satellite gear 52 1 sides and outer ring 51 engagements, the tooth engagement of opposite side and motor output shaft 13 front ends, be that motor output shaft 13 uses as the sun wheel of planetary gear speed reducing mechanism, to the speed reduction gearing transferring power, planetary gear carrier 54 couples together a plurality of satellite gears 52, makes it carry out orderly motion.Described diff 6 has differential casing 61, planetary wheel 62, compensating-gear shaft 63 and axle side gear 64 are formed, differential casing 61 is connected with planetary gear carrier 54 by bolt, planetary wheel 62 is sleeved on the compensating-gear shaft 63, and intermesh with axle side gear 64, and be installed in differential casing 61 inside, differential casing 61 is connected with differential right housing body 22 with motor output shaft 13 respectively by bearing, the axle side gear outside is connected with right driving axle 4 with left driving shaft 3 respectively, described left driving shaft 3, motor output shaft 13, the coaxial successively setting of diff 6 and right driving axle 4, wherein left driving shaft 3 needs to be connected with side gears 64 after the centre hole of motor output shaft 13 passes, and is connected with electric machine casing 11 by bearing.Described retarder left shell 21 and right shell body 22 are closed gear cavity of formation with speed reduction gearing 5 and diff 6, be equipped with oil sealing at left shell 21 and motor output shaft 13 junctions and right shell body 22 with right driving axle 4 junctions, in described gear cavity, be marked with lubricating oil or gear oil.
When the present invention uses, only need overall fixed with motor and retarder on vehicle body, two mouths of left and right sides axle drive shaft are connected with wheel and get final product.Principal feature of the present invention is that motor shaft is coaxial setting with diff, left and right sides axle drive shaft, realize to slow down at the same time and increase under the prerequisite of turning round with differential function, reduced the volume of retarder greatly, improved internal lubrication efficient, when driven by motor is advanced, each parts is stressed evenly, prolongs the service life of parts, reduces fault rate.
In conjunction with the accompanying drawings the present invention has been carried out exemplary description above; obviously specific implementation of the present invention is not subjected to the restriction of aforesaid way; as long as the various improvement of having adopted method design of the present invention and technical scheme to carry out; or directly apply to other occasion without improvement, all within protection scope of the present invention.

Claims (12)

1, a kind of differential retarder comprises motor (1), retarder (2), and left driving shaft (3) and right driving axle (4) is characterized in that, the motor output shaft (13) of motor (1) and the diff (6) of retarder (2), the coaxial setting of left and right sides axle drive shaft (3,4).
2, differential retarder as claimed in claim 1 is characterized in that, described motor output shaft (13) is a hollow shaft, and left driving shaft (3) passes described motor output shaft (13) and is connected with diff (6), and right driving axle (4) directly is connected with diff (6).
3, differential retarder as claimed in claim 1 or 2, it is characterized in that, be provided with planetary gear speed reducing mechanism (5) in the described retarder (2), its outer ring is fixed on the described reducer shell, the planetary gear carrier (54) of this planetary gear speed reducing mechanism (5) is connected with the housing of described diff (6), and the housing of diff (6) is connected with reducer shell with motor output shaft (13) respectively.
4, differential retarder as claimed in claim 3 is characterized in that, motor output shaft (13) Front-end Design has tooth to be connected with planetary gear speed reducing mechanism (5), as its sun wheel.
5, differential retarder as claimed in claim 3 is characterized in that, the housing of diff (6) is connected with reducer shell with motor output shaft (13) respectively by bearing, and retarder (2) is connected with motor (1) by bolt.
6, as claim 1, each described differential retarder in 2,4,5 is characterized in that, described motor (1) comprises electric machine casing (11) and is arranged on rotor (12) and described motor output shaft (13) in this housing.
7, as claim 1,2,4, each described differential retarder in 5, it is characterized in that, described retarder (2) comprises housing and is arranged on housing interior planetary gear speed reducing mechanism (5) and diff (6), this planetary gear speed reducing mechanism (5) and diff (6) and the coaxial setting of motor output shaft (13).
8, differential retarder as claimed in claim 7, it is characterized in that, described planetary gear speed reducing mechanism (5) comprises outer ring (51), satellite gear (52), planet wheel spindle (53) and planetary gear carrier (54), outer ring (51) is fixed on retarder (2) housing, satellite gear (52) one sides and outer ring (51) engagement, the tooth engagement of opposite side and motor output shaft (13) front end, planetary gear carrier (54) connects a plurality of satellite gears (52), makes its orderly motion.
9, as claim 1,2,4,5, each described differential retarder in 8, it is characterized in that, described diff (6) comprises differential casing (61) and is arranged on the interior planetary wheel (62) of housing, compensating-gear shaft (63) and axle side gear (64), differential casing (61) is connected with planetary gear carrier (54), planetary wheel (62) is sleeved on the compensating-gear shaft (63), and be meshed with axle side gear (64), differential casing (61) is connected with reducer shell with motor output shaft (13) respectively, and axle side gear (64) outside is connected with right driving axle (4) with left driving shaft (3) respectively.
10, differential retarder as claimed in claim 3, it is characterized in that described reducer shell is divided into left shell (21) and right shell body (22), left shell (21) is connected with motor (1) by bolt, right shell body (22) is connected with left shell (21) by bolt, the middle gear cavity that forms.
11, differential retarder as claimed in claim 10, it is characterized in that, the junction of right shell body (22) and right driving axle (4) and left shell (21) are equipped with oil sealing with the junction of motor output shaft (13), are marked with lubricating oil or gear oil in described gear cavity.
12, as claim 8,10, each described differential retarder in 11, it is characterized in that, outer ring (51) is by being bolted on the retarder left shell (21), differential casing (61) is connected with planetary gear carrier (54) by bolt, and wherein left driving shaft (3) is connected with side gears (64), and is connected with electric machine casing (11) by bearing.
CNA2009101440493A 2009-07-06 2009-07-06 A kind of differential retarder Pending CN101602326A (en)

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CNA2009101440493A CN101602326A (en) 2009-07-06 2009-07-06 A kind of differential retarder

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Application Number Priority Date Filing Date Title
CNA2009101440493A CN101602326A (en) 2009-07-06 2009-07-06 A kind of differential retarder

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CN101602326A true CN101602326A (en) 2009-12-16

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Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102114771A (en) * 2011-02-23 2011-07-06 奇瑞汽车股份有限公司 Power assembly and electric vehicle using same
CN102158009A (en) * 2011-04-22 2011-08-17 天津市松正电动汽车技术股份有限公司 Device and method for connecting hollow shaft motor and planet gear
CN102616134A (en) * 2012-04-16 2012-08-01 中国汽车技术研究中心 Integrated driving device for pure electric vehicle
CN102653231A (en) * 2012-05-16 2012-09-05 大连金华齿轮箱制造有限公司 Power assembly for electric passenger car
CN103029577A (en) * 2012-12-28 2013-04-10 辽宁曙光汽车集团股份有限公司 Coaxial direct-connection type drive axle assembly of electric automobile
CN103133673A (en) * 2013-02-27 2013-06-05 上海中科深江电动车辆有限公司 Lubricating system for electronic continuously variable transmission of electric vehicle and design method of lubricating system
CN103448540A (en) * 2013-09-22 2013-12-18 襄阳群龙汽车部件股份有限公司 Torque conversion differential assembly of coaxial motor
CN103832211A (en) * 2014-02-25 2014-06-04 武汉新能车桥技术发展有限公司 Centrally-arranged motor drive axle
CN104742722A (en) * 2015-03-05 2015-07-01 郑州宇通客车股份有限公司 Vehicle and hybrid power system, motor planet row mechanism and axle installation structure thereof
CN105291698A (en) * 2014-06-23 2016-02-03 杨皓捷 Hollow motor and hollow motor electromobile rear axle
CN105751880A (en) * 2016-03-01 2016-07-13 陕西理工学院 Direct-driving type driving device of electric vehicle
CN106004424A (en) * 2016-07-20 2016-10-12 杭州傲拓迈科技有限公司 Electric automobile coaxial type speed reducing mechanism driving system
CN106143132A (en) * 2016-09-23 2016-11-23 辽宁曙光汽车集团股份有限公司 Strongly support type electric drive decelerator
CN106427533A (en) * 2016-11-16 2017-02-22 陕西理工学院 Electric vehicle driving axle and driving and speed-regulating method thereof
CN106515407A (en) * 2016-11-16 2017-03-22 陕西理工学院 Electric vehicle drive axle driven by two motors for speed regulation
CN106740021A (en) * 2016-11-16 2017-05-31 陕西理工学院 A kind of electric motor car driving bridge of dual-motor combination
CN108215789A (en) * 2016-12-22 2018-06-29 本田技研工业株式会社 Power plant
CN108674161A (en) * 2018-05-21 2018-10-19 大汉汽车集团有限公司 A kind of fast driving device of pure electric coach
CN112389178A (en) * 2019-08-19 2021-02-23 比亚迪股份有限公司 Axle assembly and vehicle

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CN1219224A (en) * 1996-05-21 1999-06-09 腓特烈斯港齿轮工厂股份公司 Device for securing a gear wheet to a shaft
CN2548836Y (en) * 2002-04-10 2003-05-07 武汉理工大学 Coaxial assembled unitary driving axle for small three or four wheel electric vehicle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1219224A (en) * 1996-05-21 1999-06-09 腓特烈斯港齿轮工厂股份公司 Device for securing a gear wheet to a shaft
CN2548836Y (en) * 2002-04-10 2003-05-07 武汉理工大学 Coaxial assembled unitary driving axle for small three or four wheel electric vehicle

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102114771A (en) * 2011-02-23 2011-07-06 奇瑞汽车股份有限公司 Power assembly and electric vehicle using same
CN102158009A (en) * 2011-04-22 2011-08-17 天津市松正电动汽车技术股份有限公司 Device and method for connecting hollow shaft motor and planet gear
CN102616134A (en) * 2012-04-16 2012-08-01 中国汽车技术研究中心 Integrated driving device for pure electric vehicle
CN102653231A (en) * 2012-05-16 2012-09-05 大连金华齿轮箱制造有限公司 Power assembly for electric passenger car
CN102653231B (en) * 2012-05-16 2015-10-28 大连金华齿轮箱制造有限公司 Electrocar dynamic assembly
CN103029577B (en) * 2012-12-28 2015-09-09 辽宁曙光汽车集团股份有限公司 The coaxial associated mode driving axis of electronlmobil
CN103029577A (en) * 2012-12-28 2013-04-10 辽宁曙光汽车集团股份有限公司 Coaxial direct-connection type drive axle assembly of electric automobile
CN103133673A (en) * 2013-02-27 2013-06-05 上海中科深江电动车辆有限公司 Lubricating system for electronic continuously variable transmission of electric vehicle and design method of lubricating system
CN103448540B (en) * 2013-09-22 2016-04-20 格源动力有限公司 Coaxial motor bending moment differential assembly
CN103448540A (en) * 2013-09-22 2013-12-18 襄阳群龙汽车部件股份有限公司 Torque conversion differential assembly of coaxial motor
CN103832211A (en) * 2014-02-25 2014-06-04 武汉新能车桥技术发展有限公司 Centrally-arranged motor drive axle
CN105291698A (en) * 2014-06-23 2016-02-03 杨皓捷 Hollow motor and hollow motor electromobile rear axle
CN104742722B (en) * 2015-03-05 2017-12-15 郑州宇通客车股份有限公司 Vehicle and its hybrid power system, motor planetary row mechanism and axle mounting structure
CN104742722A (en) * 2015-03-05 2015-07-01 郑州宇通客车股份有限公司 Vehicle and hybrid power system, motor planet row mechanism and axle installation structure thereof
CN105751880A (en) * 2016-03-01 2016-07-13 陕西理工学院 Direct-driving type driving device of electric vehicle
CN106004424A (en) * 2016-07-20 2016-10-12 杭州傲拓迈科技有限公司 Electric automobile coaxial type speed reducing mechanism driving system
CN106143132A (en) * 2016-09-23 2016-11-23 辽宁曙光汽车集团股份有限公司 Strongly support type electric drive decelerator
CN106143132B (en) * 2016-09-23 2018-09-14 辽宁曙光汽车集团股份有限公司 Strength support type electric drive retarder
CN106515407A (en) * 2016-11-16 2017-03-22 陕西理工学院 Electric vehicle drive axle driven by two motors for speed regulation
CN106740021A (en) * 2016-11-16 2017-05-31 陕西理工学院 A kind of electric motor car driving bridge of dual-motor combination
CN106427533A (en) * 2016-11-16 2017-02-22 陕西理工学院 Electric vehicle driving axle and driving and speed-regulating method thereof
CN108215789A (en) * 2016-12-22 2018-06-29 本田技研工业株式会社 Power plant
CN108674161A (en) * 2018-05-21 2018-10-19 大汉汽车集团有限公司 A kind of fast driving device of pure electric coach
CN112389178A (en) * 2019-08-19 2021-02-23 比亚迪股份有限公司 Axle assembly and vehicle

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Application publication date: 20091216