CN203344654U - Weight reducing type back drive axle for electric vehicle - Google Patents

Weight reducing type back drive axle for electric vehicle Download PDF

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Publication number
CN203344654U
CN203344654U CN2012205035018U CN201220503501U CN203344654U CN 203344654 U CN203344654 U CN 203344654U CN 2012205035018 U CN2012205035018 U CN 2012205035018U CN 201220503501 U CN201220503501 U CN 201220503501U CN 203344654 U CN203344654 U CN 203344654U
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CN
China
Prior art keywords
axle
bearing
wheel
housing
bevel housing
Prior art date
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Expired - Fee Related
Application number
CN2012205035018U
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Chinese (zh)
Inventor
付西平
赵亚鹏
姬周元
侯静雅
杨武
张斌
李雷
景浩旭
杨莽
卜娟
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SHAANXI DONGMING VEHICLE SYSTEM Co Ltd
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SHAANXI DONGMING VEHICLE SYSTEM Co Ltd
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Priority to CN2012205035018U priority Critical patent/CN203344654U/en
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Publication of CN203344654U publication Critical patent/CN203344654U/en
Anticipated expiration legal-status Critical
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/80Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/86Optimisation of rolling resistance, e.g. weight reduction 

Abstract

A weight reducing type back drive axle for an electric vehicle is mainly composed of a main reducer assembly, a semi-shaft assembly and a back axle shell assembly. A shell body of a main reducer is made of cast iron instead of original cast aluminum. The shell body is designed to be of an integrated type instead of a split type. A motor connecting flange and the shell body of the main reducer are arranged in a split mode instead of an original integrated mode. A motor connecting flange disk of the main reducer is fastened and connected with a motor flange disk through bolts. One end of the semi-shaft is connected with a semi-shaft gear. A box body of the main reducer is arranged in a split mode. A left box and a right box are located through two hollow pins and are fastened and connected through bolts at matching time. An oil feeding opening, an oil discharging opening and a ventilation valve body are formed in and arranged on a back axle shell. The oil feeding opening and the oil discharging opening are fastened and sealed through screw plugs. The weight reducing type back drive axle has the advantages of being light in weight, small in appearance size, attractive, capable of realizing transmission with various speed ratios, long in service life, free of abnormal noise, good in lubricating performance of running parts, and the like.

Description

A kind of for battery-driven car lightweight rear driving axle
Technical field
The utility model relates to a kind of for battery-driven car cast aluminium casing rear driving axle.
Background technology
Due to environmental protection and energy-conservation needs, the lightweight of vehicle has become the trend of world's vehicle development at present.The rear driving axle of the large multiplex integral type cast iron casing of the electronlmobil of producing and selling on market now and electrocar, its from defect be that the back axle overall weight is larger, restricted the course continuation mileage of battery-driven car, reducing gearbox body processing technology complexity, cost is higher, product is single, and the exchange that is not suitable for the plurality of specifications motor with the money back axle is installed, and aspect three guarantees and maintenance, difficulty is larger.
Summary of the invention
The utility model purpose is to provide is a kind ofly changed a social system again by traditional rear driving axle, and in structure, bevel housing has adopted split typely, is divided into left reducer shell, right reducer shell and motor flange dish.Bevel housing changes the cast aluminium casing into by the cast iron casing, followed the development of battery-driven car weight-saving, casing changes split into by integral type, from technique, frock, set out in the fixture aspect, reduced the difficulty in machine adds and assembles, also can realize the Alternate with different flange motors, casing I axle and II axle installation position adopt blind hole (except I axle splined end), sealing property gets a promotion, main some parts that subtract in assembly also can have been saved (as plug, jump ring), simultaneously the blind hole side bearing from before the double density bearing change present coventional type bearing into, reduce the cost of whole bridge, with integral housing and half-floating axle structure, the product existing with company is similar, the technical matters maturation, realized lightweight and cost-saving in guarantee bearing safety coefficient and the service life of product.
The utility model completes in the following way: i.e. battery-driven car lightweight drives back axle, and it is by main reduction gear, rear-axle casing, semiaxis forms and brake system four parts form, and motor mounting flange and the motor flange dish of main reduction gear connect by bolted, by the spline transferring power, main reduction gear and rear-axle casing adopt bolted to connect, be coated with sealant between the two while assembling, drg connects by bolted with rear-axle casing two end axles bearing, semiaxis one end is connected with axle side gear, drg limit simultaneously the semiaxis other end (containing the bearing filled on semiaxis, on press-fiting in, outer back-up ring) inside and outside rear-axle casing, alter, the in-built oil sealing of rear-axle casing two end axles bearing and oil seal protecting sleeve, main reduction gear comprises a reducer shell left side, the reducer shell right side, the motor mounting flange, gear wheel shaft I, gear wheel shaft II, the II shaft gear, bull wheel, diff, bearing 6202, bearing 6304-2RS, bearing 6203, oil sealing, packing ring, bolt, the main reduction gear casing is split type, when the left and right casing coordinates, by two hollow pin location, guarantees gear wheel shaft I, bearing hole on gear wheel shaft II and diff is concentric, thereby guarantee the correctness of each gear engagement, with bolt, connect fastening, transmission power is that motor passes to gear wheel shaft I by an axle spline, pass to the II shaft gear by gear wheel shaft I, the II shaft gear is connected with key with keyway with gear wheel shaft II, form an integral body, pass to again bull wheel, bull wheel and diff are bolted connection (available anaerobic adhesive locks to prevent bolt looseness), form a fabricate block, bull wheel drives diff and rotates, the planetary wheel in fabricate block, compensating-gear shaft and axle side gear adopt common differential structure, more finally pass to tire by axle side gear and semiaxis.In the process of transmitting in power, realize double reduction and differential effect, transmission efficiency is more than 95% simultaneously, motor mounting flange and a reducer shell left side are bolted connection, can realize the quick-replaceable of motor mounting flange, and do not affect the main reduction gear integral structure, rear-axle casing is provided with oil filling port, oil drain hole and ventilation valve body, oil filling port and oil drain hole are by the plug screw fit sealing, the ventilation valve body prevents that by the connection for bbreather pipe catch lubricating oil from being overflowed by connection for bbreather pipe, the bevel housing outward appearance is focused on the fleetline design, jade-like stone white in conjunction with the cast aluminium casing, realizing that weight-saving simultaneously, not only attractive in appearance but also be beneficial to heat radiation, leave sufficient space when being connected with beam rear axle.
The utlity model has rational in infrastructure, weight is slim and graceful, use safety, product life is long, easy to assembly, maintenance and to change the distinct interface motor convenient, have no abnormal sound, noise is little, external form compact, the characteristics such as elegant in appearance, functions such as well having realized deceleration, differential, advance and fallen back simultaneously.
The accompanying drawing explanation
Below in conjunction with Fig. 1, Fig. 2, Fig. 3, further illustrate.
Fig. 1 is that the battery-driven car lightweight drives back axle assembly figure
Fig. 2 is that the battery-driven car lightweight drives rear-end gear reduction assembly figure
Fig. 3 is that the battery-driven car lightweight drives rear axle shaft total
The 1st, brake wheel, the 2nd, drg, 3 is half axle assemblies, the 4th, axle bearing, the 5th, bearing seat, the 6th, oil sealing, the 7th, the oil sealing sheath, the 8th, spring block, the 9th, sleeve pipe, the 10th, the sleeve pipe lining ring, the 11st, rear axle housing assembly, the 12nd, the rear-axle casing main gearbox assembly, the 13rd, oil filling port, the 14th, I axle bearing, the 15th, I axle, the 16th, the reducer shell right side, the 17th, a reducer shell left side, the 18th, I axle bearing, the 19th, the motor butt flange, the 20th, oil sealing, the 21st, II axle bearing, the 22nd, II wheel, the 23rd, key, the 24th, II axle, the 25th, packing ring, the 26th, differential bearing, the 27th, axle side gear, the 28th, planetary wheel, the 29th, diff, the 30th, bull wheel, the 31st, tire bolt, the 32nd, semiaxis, the 33rd, the semiaxis gland, 34 inner shield rings, 35 axle bearings, 36 outer back-up rings.
The specific embodiment
A kind of for battery-driven car lightweight rear driving axle, it is mainly by main gearbox assembly (12), half axle assembly (3) and rear axle housing assembly (11) three parts form, bevel housing left (17) connects by bolted with motor butt flange (19), motor butt flange (19) is bolted connection with motor, by the spline transferring power, main gearbox assembly 12) with rear axle housing assembly (11), adopt bolted to connect, drg (2) connects by bolted with rear axle housing assembly (11) two ends, semiaxis (32) one ends are connected with axle side gear (27), drg (2) is by the bearing (35) filled on gland (33) restriction semiaxis (32) other end semiaxis, inner shield ring on press-fiting (34), outer back-up ring (36) is from the inside and outside play of rear axle housing assembly (11), the in-built oil sealings in rear axle housing assembly (11) two ends (6) and oil seal protecting sleeve (7).Main gearbox assembly comprises I axle (15), II takes turns (22), II axle (24), bull wheel (30), bevel housing left (17), bevel housing right (16), diff (29) and motor butt flange (19) I axle (15) are input shaft, I axle (15) is by the bearing (14 of insert in the bearing hole in bevel housing left (17) and right (16) inner chamber body of bevel housing, 18) supporting, the bearing (14 that I axle (15) is used, 18) be respectively deep groove ball bearing and double sealed bearing, I axle (15) splined end is by oil sealing (20) sealing, II axle (24) is also by bearing (21) supporting of insert in the bearing hole of bevel housing left (17) and right (16) inner chamber body of bevel housing, II axle (24) bearing (21) used is deep groove ball bearing, II wheel (22) connects by key (23), by packing ring (25) restriction II wheel (22) horizontal looseness, bull wheel (30) is to smear anaerobic adhesive by bolt to be fastenedly connected with diff (29), form a fabricate block, the two ends of diff (29) are bearing on two bearing holes in a bevel housing left side (17) and right (16) cavity of bevel housing with two deep groove ball bearings (26), motor butt flange (19) is bolted connection with bevel housing left (17), bevel housing left (17) and bevel housing right (16) are bolted connection, motor and motor butt flange (19) are bolted connection, motor output shaft is connected with spline housing, drive I axle (15) rotation, I axle (15) drives II wheel (22) rotation, drive II axle (24) rotation by II wheel (22) again, II axle (24) rotates with bull wheel (30) engagement, thereby drive bull wheel (30) and diff (29) integral-rotation, by planetary wheel (28), axle side gear (27) engagement divides supplementary biography and (a left side by power, right) semiaxis (32) rotation, realize differential action simultaneously, by the tire bolt (31) on semiaxis (32) and wheel rim connecting band motor car wheel, rotate again.
Before use, first from the oil filling port (13) of rear axle housing assembly (11) to cavity in load vehicle gear lubricant or GL-4 hypoid gear oil filling 85w/90, standard is 0.8L-1.0L.Then set up pad, tighten the oil filling port plug screw.

Claims (5)

1. one kind for battery-driven car lightweight rear driving axle, it is mainly by main gearbox assembly (12), half axle assembly (3) and rear axle housing assembly (11) three parts form, bevel housing left (17) connects by bolted with motor butt flange (19), motor butt flange (19) is bolted connection with motor, by the spline transferring power, main gearbox assembly (12) adopts bolted to connect with rear axle housing assembly (11), drg (2) connects by bolted with rear axle housing assembly (11) two ends, semiaxis (32) one ends are connected with axle side gear (27), drg (2) is by the bearing (35) filled on gland (33) restriction semiaxis (32) other end semiaxis, inner shield ring on press-fiting (34), outer back-up ring (36) is from the inside and outside play of rear axle housing assembly (11), the in-built oil sealings in rear axle housing assembly (11) two ends (6) and oil seal protecting sleeve (7), main gearbox assembly comprises I axle (15), II takes turns (22), II axle (24), bull wheel (30), bevel housing left (17), bevel housing right (16), diff (29) and motor butt flange (19), the I axle is by the bearing (14 of insert in the bearing hole in bevel housing left (17) and right (16) inner chamber body of bevel housing, 18) supporting, the bearing (14 that I axle (15) is used, 18) be respectively deep groove ball bearing and double sealed bearing, I axle (15) splined end is by oil sealing (20) sealing, II axle (24) is also by bearing (21) supporting of insert in the bearing hole of bevel housing left (17) and right (16) inner chamber body of bevel housing, II axle (24) bearing (21) used is deep groove ball bearing, II wheel (22) connects by key (23), by packing ring (25) restriction II wheel (22) horizontal looseness, bull wheel (30) is to smear anaerobic adhesive by bolt to be fastenedly connected with diff (29), form a fabricate block, the two ends of diff (29) are bearing on two bearing holes in a bevel housing left side (17) and right (16) cavity of bevel housing with two deep groove ball bearings (26), motor butt flange (19) is bolted connection with bevel housing left (17), bevel housing left (17) and bevel housing right (16) are bolted connection, motor and motor butt flange (19) are bolted connection, motor output shaft is connected with spline housing, drive I axle (15) rotation, I axle (15) drives II wheel (22) rotation, drive II axle (24) rotation by II wheel (22) again, II axle (24) rotates with bull wheel (30) engagement, thereby drive bull wheel (30) and diff (29) integral-rotation, by planetary wheel (28), axle side gear (27) engagement divides supplementary biography with left power, right axle shaft (32) rotates, realize differential action simultaneously, by the tire bolt (31) on semiaxis (32) and wheel rim connecting band motor car wheel, rotate again, it is characterized in that: the I axle (15) in the bevel housing cavity, II axle (24), II takes turns (22), bull wheel (30) adopts transversely arranged, main gearbox assembly and back axle adopt horizontal positioned lubricated.
2. as claimed in claim 1 a kind of for battery-driven car lightweight rear driving axle, it is characterized in that: bevel housing (16,17) adopts split type cast aluminium casing.
3. as claimed in claim 1 a kind of for battery-driven car lightweight rear driving axle, it is characterized in that: bevel housing (16,17) adopts split type with motor butt flange (19).
4. as claimed in claim 1 a kind of for battery-driven car lightweight rear driving axle, it is characterized in that: I axle (15) one ends and II axle (24) two ends bevel housing adopt blind hole.
5. as claimed in claim 1 a kind of for battery-driven car lightweight rear driving axle, it is characterized in that: main gearbox assembly (12) gear pair adopts the flooding system lubrication structure.
CN2012205035018U 2012-09-22 2012-09-22 Weight reducing type back drive axle for electric vehicle Expired - Fee Related CN203344654U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012205035018U CN203344654U (en) 2012-09-22 2012-09-22 Weight reducing type back drive axle for electric vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012205035018U CN203344654U (en) 2012-09-22 2012-09-22 Weight reducing type back drive axle for electric vehicle

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CN203344654U true CN203344654U (en) 2013-12-18

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105909769A (en) * 2016-04-27 2016-08-31 徐州徐工筑路机械有限公司 Dry type self-lubricating wheel edge assembly for rear axle of land leveler
CN106274293A (en) * 2015-06-01 2017-01-04 泰州市安捷利汽车配件有限公司 A kind of rear axle of electric automobile of improved structure
CN106763661A (en) * 2017-02-17 2017-05-31 重庆瑞阳鑫驰新能源汽车有限责任公司 A kind of electric automobile and its main reducing gear and rear axle structure
WO2017092302A1 (en) * 2015-12-03 2017-06-08 中车株洲电力机车有限公司 Hollow axle structure and wheel set
CN109826923A (en) * 2019-03-27 2019-05-31 郑州江东汽车零部件有限公司 A kind of external hanging type double reduction motor rear axle
WO2020244204A1 (en) * 2019-06-03 2020-12-10 江苏巨杰机电有限公司 Split-type electric vehicle rear axle
CN114294408A (en) * 2021-12-30 2022-04-08 中国第一汽车股份有限公司 Oil pan integrated driving shaft intermediate shaft structure

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106274293A (en) * 2015-06-01 2017-01-04 泰州市安捷利汽车配件有限公司 A kind of rear axle of electric automobile of improved structure
WO2017092302A1 (en) * 2015-12-03 2017-06-08 中车株洲电力机车有限公司 Hollow axle structure and wheel set
CN105909769A (en) * 2016-04-27 2016-08-31 徐州徐工筑路机械有限公司 Dry type self-lubricating wheel edge assembly for rear axle of land leveler
CN106763661A (en) * 2017-02-17 2017-05-31 重庆瑞阳鑫驰新能源汽车有限责任公司 A kind of electric automobile and its main reducing gear and rear axle structure
CN106763661B (en) * 2017-02-17 2023-06-27 重庆瑞阳鑫驰新能源汽车有限责任公司 Electric automobile and main reducer and rear axle structure thereof
CN109826923A (en) * 2019-03-27 2019-05-31 郑州江东汽车零部件有限公司 A kind of external hanging type double reduction motor rear axle
WO2020244204A1 (en) * 2019-06-03 2020-12-10 江苏巨杰机电有限公司 Split-type electric vehicle rear axle
CN114294408A (en) * 2021-12-30 2022-04-08 中国第一汽车股份有限公司 Oil pan integrated driving shaft intermediate shaft structure

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20131218

Termination date: 20210922

CF01 Termination of patent right due to non-payment of annual fee