CN109372958A - A kind of logistic car electricity drive bridge speed changer - Google Patents

A kind of logistic car electricity drive bridge speed changer Download PDF

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Publication number
CN109372958A
CN109372958A CN201811572151.9A CN201811572151A CN109372958A CN 109372958 A CN109372958 A CN 109372958A CN 201811572151 A CN201811572151 A CN 201811572151A CN 109372958 A CN109372958 A CN 109372958A
Authority
CN
China
Prior art keywords
jackshaft
gear
input shaft
differential mechanism
bearing
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
CN201811572151.9A
Other languages
Chinese (zh)
Inventor
李磊
吴仕祥
杨海华
李翠连
王康林
杨富双
刘诗道
单培顺
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Green Control Drive Science And Technology Co Ltd
Suzhou Lvkon Transmission S&T Co Ltd
Original Assignee
Suzhou Green Control Drive Science And Technology 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 Suzhou Green Control Drive Science And Technology Co Ltd filed Critical Suzhou Green Control Drive Science And Technology Co Ltd
Priority to CN201811572151.9A priority Critical patent/CN109372958A/en
Publication of CN109372958A publication Critical patent/CN109372958A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/20—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear
    • F16H3/22—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear with gears shiftable only axially
    • F16H3/30—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear with gears shiftable only axially with driving and driven shafts not coaxial
    • F16H3/32—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear with gears shiftable only axially with driving and driven shafts not coaxial and an additional shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/10—Constructively simple tooth shapes, e.g. shaped as pins, as balls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/17—Toothed wheels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/028—Gearboxes; Mounting gearing therein characterised by means for reducing vibration or noise

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Retarders (AREA)

Abstract

The present invention provides a kind of logistic car electricity to drive bridge speed changer, it is integrated with differential mechanism, realize speed change, differential, integration of slowing down, so that compact-sized, vehicle occupies little space, and increases battery arrangement space, while eliminating driveline, it is high-efficient to pass function, considerably increases the course continuation mileage of new energy logistic car.It includes gearbox body, front housing, the front housing, assembling cavity is formed after gearbox body splicing, the lower middle position of the gearbox body is provided with transmission avoid holes, input shaft is disposed in the assembling cavity, jackshaft, the jackshaft is located at the lower disposed of the input shaft, after the front end of the input shaft externally protrudes out in the front housing, connect driving motor, the part for being located at the assembling cavity of the input shaft is disposed with input shaft first gear, input shaft second gear, jackshaft first gear is respectively installed on the jackshaft, jackshaft second gear, jackshaft constant mesh gear.

Description

A kind of logistic car electricity drive bridge speed changer
Technical field
The present invention relates to the technical field of transmission speed variator, specially a kind of logistic car electricity drives bridge speed changer.
Background technique
In face of global energy crisis and environmental problem, automobile industry is undoubtedly the rich and influential family of energy consumption and air pollution, Under the international environment of energy-saving and emission-reduction and government is under the vigorously supporting of new energy cause, the demand of pure electric automobile year by year on Rise, motor+gearbox+rear axle power assembly (electricity drive bridge) is increasingly becoming the direction of each Automobile Enterprises cooperative development, and speed change Device is the intermediate link of power assembly, and particularly critical effect is played to transmission system.
Existing electricity drives bridge speed changer, and structure is complicated, and difficult arrangement, and transmitting route is long, transmission efficiency is low.
Summary of the invention
In view of the above-mentioned problems, the present invention provides a kind of logistic car electricity to drive bridge speed changer, it is integrated with differential mechanism, realizes and becomes Speed, differential, integration of slowing down, so that compact-sized, vehicle occupies little space, and increases battery arrangement space, eliminates simultaneously Driveline, biography function is high-efficient, considerably increases the course continuation mileage of new energy logistic car.
A kind of logistic car electricity drive bridge speed changer, it is characterised in that: it includes gearbox body, front housing, the front housing, gearbox Assembling cavity is formed after body splicing, the lower middle position of the gearbox body is provided with transmission avoid holes, the assembling cavity It is inside disposed with input shaft, jackshaft, the jackshaft is located at the lower disposed of the input shaft, the front end evagination of the input shaft After the front housing, connection driving motor, the part for being located at the assembling cavity of the input shaft is disposed with the gear of input shaft one Gear, input shaft second gear are respectively installed with jackshaft first gear, jackshaft second gear, centre on the jackshaft Axis constant mesh gear, the jackshaft first gear, jackshaft second gear pass through needle bearing respectively and are set in the centre On axis, the jackshaft constant mesh gear is placed on admittedly on the jackshaft, and the jackshaft first gear engagement connection is described defeated Entering axis first gear, the jackshaft second gear, which engages, connects the input shaft second gear, the jackshaft first gear, Jackshaft between jackshaft second gear is set with synchronizer, and the sliding gear collar of the synchronizer keeps off tooth along jackshaft one It is axially moved between wheel, jackshaft second gear, the both ends of the surface of sliding gear collar are respectively facing jackshaft first gear, jackshaft two The respective engagement gear ring arrangement of gear is kept off, the lower disposed of the gearbox body has differential mechanism, and two of the differential mechanism are defeated Shaft is parallel to the jackshaft arrangement, and the top tooth engagement that the master of the differential mechanism subtracts gear connects the jackshaft and often engages The lower teeth of gear, the master subtracts gear and the engaging portion of jackshaft constant mesh gear is located at the correspondence for transmitting avoid holes Region.
It is further characterized by:
Two output shafts of the differential mechanism are located at the arranged just beneath of the input shaft, and the jackshaft is located at described defeated Enter the side arrangement in face domain composed by the center line of axis, output shaft, the jackshaft, input shaft, output shaft are in three-legged structure Setting, so that whole height is relatively small, it is ensured that whole to facilitate arrangement；
The input shaft first gear is integrated in the input shaft, so that stable transmission is reliable；
The jackshaft constant mesh gear is integrated in the jackshaft, so that stable transmission is reliable；
The two sides for corresponding to the transmission avoid holes of the gearbox body are respectively arranged with differential mechanism installation side plate, described First output sleeve of differential mechanism is equipped with the first tapered roller bearing, and the first differential bearing lid is installed in the gearbox body The differential mechanism installation side plate of respective side, the first differential bearing lid, corresponding differential mechanism installation side plate combine to form the first positioning Mounting hole, the first tapered roller bearing positioning support is in first positioning hole, the second output of the differential mechanism Axle sleeve is equipped with the second tapered roller bearing, and the second differential bearing lid is installed in the differential mechanism peace of the respective side of the gearbox body Side plate is filled, the second differential bearing lid, corresponding differential mechanism installation side plate combine to form the second positioning hole, second circle Taper roller bearing positioning support makes the easy to assembly, quick of entire speed changer in second positioning hole, and is convenient for The semiaxis and output shaft of automobile arrange installation；The spring bearing of differential mechanism is designed using cone bearing, with greatly improved under diameter The bearing capacity of bearing, gap adjustment is accurate to 0.05mm or so under cone bearing room temperature, it is ensured that the projected life of bearing；
The front end face of the first differential bearing lid corresponds in the front end face face domain of first tapered roller bearing Ring is furnished with adjusting nut, and the inner end of the adjusting nut is close to the front end face of the outer ring of first tapered roller bearing, is made Obtain the first tapered roller bearing of adjusting nut axial restraint, it is ensured that the installation of entire differential mechanism is reliable and stable；
The installation site that the front end of the input shaft corresponds to the front housing is sequentially set with the first deep groove ball bearing, the first card Ring, oil sealing, the rear end cap of the input shaft is equipped with location and installation after the second deep groove ball bearing in the deep-groove ball of the gearbox body In bearing hole, the second deep groove ball bearing of the second snap ring axial restraint；
The front end sleeve of the jackshaft is positioned at the jackshaft mounting ring of the front housing equipped with cylinder roller bearing rear support In slot, the rear end of the jackshaft is by third deep groove ball bearing location and installation in the jackshaft location and installation of the gearbox body In hole；
All gears are all made of thin and tall tooth, increase, the registration of average gear pair, improve the strength of gear teeth, reduce engagement Noise；
The synchronizer is circumscribed with pull-fork assembly, and the pull-fork assembly is circumscribed with shift motor.
After applying the present invention, a gear, second gear shift are carried out by driving synchronizer, differential mechanism is integrated under gearbox body Portion, integrated differential mechanism and bridge are direct, it is simple to make arrangement, and make power transfer line short out, and transmission efficiency is high；And gear is equal It is designed, is increased, the registration of average gear pair using thin and tall tooth, optimization gear macroscopic view, micro-parameter greatly improve the strength of gear teeth With reduction gearing noise；Differential support bearing is designed using cone bearing, with the bearing capacity that bearing greatly improved under diameter, Gap adjustment is accurate to 0.05mm or so under cone bearing room temperature, it is ensured that the projected life of bearing；Cap part all aluminium alloy finite element Topology optimization design has passed through 500,000 kilometers of load spectrum fatigues and has checked；Transmission assembly weight is greatly lowered, increases torque matter Ratio is measured, reaches 4.9；Assembly cleannes are limited to 290mg, and the quiet torsion intensity reserve coefficient of assembly is not less than 3.0, and assembly is averagely driven Efficiency is not less than 96.5%；It realizes speed change, differential, integration of slowing down, so that compact-sized, vehicle occupies little space, and increases Battery arrangement space, while eliminating driveline, it is high-efficient to pass function, in the continuation of the journey for considerably increasing new energy logistic car Journey.
Detailed description of the invention
Fig. 1 is the main view schematic diagram of specific embodiments of the present invention；
Fig. 2 is the schematic cross-sectional view of the main view of Fig. 1；
Fig. 3 is left side view (partial cutaway) structural schematic diagram of Fig. 1；
Title corresponding to serial number is as follows in figure:
Gearbox body 1, front housing 2, assembling cavity 3, transmission avoid holes 4, input shaft 5, jackshaft 6, input shaft first gear 7, input shaft second gear 8, jackshaft first gear 9, jackshaft second gear 10, jackshaft constant mesh gear 11, synchronizer 12, sliding gear collar 121, engagement gear ring 13, differential mechanism 14, it is main subtract gear 15, differential mechanism installation side plate 16, the first output shaft 17, First tapered roller bearing 18, the first differential bearing lid 19, the second output shaft 20, the second tapered roller bearing 21, second are poor Fast device bearing cap 22, the second positioning hole 23, adjusting nut 24, the first deep groove ball bearing 25, the first snap ring 26, oil sealing 27, Second deep groove ball bearing 28；Cylinder roller bearing 29, third deep groove ball bearing 30, pull-fork assembly 31, shift motor 32, needle roller axis Hold the 33, first positioning hole 34.
Specific embodiment
A kind of logistic car electricity drive bridge speed changer, see Fig. 1-Fig. 3: it includes gearbox body 1, front housing 2, front housing 2, gearbox body Assembling cavity 3 is formed after 1 splicing, the lower middle position of gearbox body 1 is provided with transmission avoid holes 4, arrangement in assembling cavity 3 Have an input shaft 5, jackshaft 6, jackshaft 6 is located at the lower disposed of input shaft 5, the front end of input shaft 5 externally protrude out in front housing 2 after, even Driving motor is connect, the part for being located at assembling cavity 3 of input shaft 5 is disposed with input shaft first gear 7, input shaft second gear 8, Jackshaft first gear 9, jackshaft second gear 10, jackshaft constant mesh gear 11, jackshaft are respectively installed on jackshaft 6 First gear 9, jackshaft second gear 10 are set on jackshaft 6 by needle bearing 33 respectively, jackshaft constant mesh gear 11 are placed on admittedly on jackshaft 6, and the engagement connection input shaft first gear 7 of jackshaft first gear 9, jackshaft second gear 10 engages Input shaft second gear 8 is connected, the jackshaft between jackshaft first gear 9, jackshaft second gear 10 is set with synchronizer 12, the sliding gear collar 121 of synchronizer 12 is axially moved along between jackshaft first gear 9, jackshaft second gear 10, sliding The both ends of the surface of tooth set 121 are respectively facing respective 13 cloth of engagement gear ring of jackshaft first gear 9, jackshaft second gear 10 It sets, the lower disposed of gearbox body 1 has differential mechanism 14, and two output shafts of differential mechanism 14 are parallel to the arrangement of jackshaft 6, differential mechanism 14 master subtracts the lower teeth of the top tooth engagement connection jackshaft constant mesh gear 11 of gear 15, and master subtracts gear 15 and jackshaft is normal The engaging portion of meshing gear 11 is located at the corresponding region of transmission avoid holes.
Two output shafts of differential mechanism 14 are located at the arranged just beneath of input shaft 5, and jackshaft 6 is located at input shaft 5, output shaft Center line composed by face domain side arrangement, jackshaft 6, input shaft 5, output shaft in three-legged structure be arranged so that integrally It is highly relatively small, it is ensured that whole to facilitate arrangement；
Input shaft first gear 7 is integrated in input shaft 5, so that stable transmission is reliable；
Jackshaft constant mesh gear 11 is integrated in jackshaft 6, so that stable transmission is reliable；
The two sides for corresponding to transmission avoid holes 4 of gearbox body 1 are respectively arranged with differential mechanism installation side plate 16, differential mechanism 14 The first output shaft 17 be set with the first tapered roller bearing 18, the first differential bearing lid 19 is installed in pair of 1 body of gearbox The differential mechanism installation side plate 16 of side is answered, the first differential bearing lid 19, the combination of corresponding differential mechanism installation side plate 16 form first Positioning hole 34,18 positioning support of the first tapered roller bearing is in the first positioning hole 34, the second output of differential mechanism 14 Axis 20 is set with the second tapered roller bearing 21, and the second differential bearing lid 22 is installed in the differential of the respective side of gearbox body 1 Device installation side plate 16, the second differential bearing lid 22, the combination of corresponding differential mechanism installation side plate 16 form the second positioning hole 23,21 positioning support of the second tapered roller bearing makes the easy to assembly, fast of entire speed changer in the second positioning hole 23 Victory, and semiaxis and output shaft arrangement installation convenient for automobile；The spring bearing of differential mechanism is designed using cone bearing, with big under diameter Width improves the bearing capacity of bearing, and gap adjustment is accurate to 0.05mm or so under cone bearing room temperature, it is ensured that the design longevity of bearing Life；
The front end face of first differential bearing lid 19 corresponds to the front end face face domain inner ring cloth of the first tapered roller bearing 18 There is adjusting nut 24, the inner end of adjusting nut 24 is close to the front end face of the outer ring of the first tapered roller bearing 18, to adjust 24 the first tapered roller bearing of axial restraint 18 of nut, it is ensured that the installation of entire differential mechanism 14 is reliable and stable；
The installation site that the front end of input shaft 5 corresponds to front housing 2 is sequentially set with the first deep groove ball bearing 25, the first snap ring 26, oil sealing 27, the rear end cap of input shaft 5 is equipped with location and installation after the second deep groove ball bearing 28 in the deep-groove ball axis of gearbox body 1 In bearing bore, 2 the second deep groove ball bearing of axial restraint 28 of the second snap ring；
The front end sleeve of jackshaft 6 is positioned in the jackshaft installation annular groove of front housing 2 equipped with 29 rear support of cylinder roller bearing, The rear end of jackshaft 6 is by 30 location and installation of third deep groove ball bearing in the jackshaft positioning hole of gearbox body 1；
All gears are all made of thin and tall tooth, increase, the registration of average gear pair, improve the strength of gear teeth, reduce engagement Noise；
Synchronizer 12 is circumscribed with pull-fork assembly 31, and pull-fork assembly 31 is circumscribed with shift motor 32.
Its working principles are as follows: carrying out a gear, second gear shift by driving synchronizer, differential mechanism is integrated in gearbox body Lower part, integrated differential mechanism and bridge are direct, it is simple to make arrangement, and make power transfer line short out, and transmission efficiency is high；And gear It is all made of thin and tall tooth design, is increased, the registration of average gear pair, it is strong to greatly improve gear for optimization gear macroscopic view, micro-parameter Degree and reduction gearing noise；Differential support bearing is designed using cone bearing, with the carrying energy that bearing greatly improved under diameter Power, gap adjustment is accurate to 0.05mm or so under cone bearing room temperature, it is ensured that the projected life of bearing；Cap part all aluminium alloy is limited First topology optimization design has passed through 500,000 kilometers of load spectrum fatigues and has checked；Transmission assembly weight is greatly lowered, increases torque Mass ratio reaches 4.9；Assembly cleannes are limited to 290mg, and the quiet torsion intensity reserve coefficient of assembly is not less than 3.0, and assembly averagely passes Efficiency of movement is not less than 96.5%；It realizes speed change, differential, integration of slowing down, so that compact-sized, vehicle occupies little space, and increases Battery arrangement space is added, while having eliminated driveline, biography function is high-efficient, considerably increases the continuation of the journey of new energy logistic car Mileage.
Specific embodiments of the present invention are described in detail above, but content is only the preferable implementation of the invention Example, should not be considered as limiting the invention the practical range of creation.It is all to become according to equalization made by the invention application range Change and improve etc., it shall still fall within the scope of this patent.

Claims (10)

1. a kind of logistic car electricity drives bridge speed changer, it is characterised in that: it includes gearbox body, front housing, the front housing, gearbox body Assembling cavity is formed after splicing, the lower middle position of the gearbox body is provided with transmission avoid holes, in the assembling cavity It is disposed with input shaft, jackshaft, the jackshaft is located at the lower disposed of the input shaft, and the front end of the input shaft externally protrudes out in After the front housing, driving motor is connected, the part for being located at the assembling cavity of the input shaft is disposed with input shaft one and keeps off tooth It takes turns, input shaft second gear, is respectively installed with jackshaft first gear, jackshaft second gear, jackshaft on the jackshaft Constant mesh gear, the jackshaft first gear, jackshaft second gear pass through needle bearing respectively and are set in the jackshaft On, the jackshaft constant mesh gear is placed on admittedly on the jackshaft, and the jackshaft first gear engagement connects the input Axis first gear, jackshaft second gear engagement connect the input shaft second gear, the jackshaft first gear, in Between jackshaft between axis second gear be set with synchronizer, the sliding gear collar of the synchronizer along jackshaft first gear, It is axially moved between jackshaft second gear, the both ends of the surface of sliding gear collar are respectively facing jackshaft first gear, jackshaft second gear The respective engagement gear ring of gear arranges that the lower disposed of the gearbox body has differential mechanism, two outputs of the differential mechanism Axis is parallel to the jackshaft arrangement, and the top tooth engagement that the master of the differential mechanism subtracts gear connects the normal engaging tooth of jackshaft The lower teeth of wheel, the master subtracts gear and the engaging portion of jackshaft constant mesh gear is located at the correspondence area for transmitting avoid holes Domain.
2. a kind of logistic car electricity as described in claim 1 drives bridge speed changer, it is characterised in that: two outputs of the differential mechanism Axle position is located at composed by the center line of the input shaft, output shaft in the arranged just beneath of the input shaft, the jackshaft The side in face domain arranges that the jackshaft, input shaft, output shaft are arranged in three-legged structure.
3. a kind of logistic car electricity as described in claim 1 drives bridge speed changer, it is characterised in that: the input shaft first gear collection Input shaft described in Cheng Yu.
4. a kind of logistic car electricity as described in claim 1 drives bridge speed changer, it is characterised in that: the jackshaft constant mesh gear It is integrated in the jackshaft.
5. a kind of logistic car electricity as described in claim 1 drives bridge speed changer, it is characterised in that: the gearbox body corresponds to The two sides of the transmission avoid holes are respectively arranged with differential mechanism installation side plate, and the first output sleeve of the differential mechanism is equipped with first Tapered roller bearing, the first differential bearing lid are installed in the differential mechanism installation side plate of the respective side of the gearbox body, and first Differential bearing lid, corresponding differential mechanism installation side plate combine to form the first positioning hole, first tapered roller bearing Positioning support is equipped with the second tapered roller bearing in first positioning hole, the second output sleeve of the differential mechanism, the Two differential bearing lids are installed in the differential mechanism installation side plate of the respective side of the gearbox body, the second differential bearing lid, right The differential mechanism installation side plate answered combines to form the second positioning hole, and the second tapered roller bearing positioning support is in described Two positioning holes.
6. a kind of logistic car electricity as claimed in claim 5 drives bridge speed changer, it is characterised in that: the first differential bearing lid Front end face correspond to first tapered roller bearing front end face face domain inner ring be furnished with adjusting nut, the adjusting nut It is close to the front end face of the outer ring of first tapered roller bearing in inner end.
7. a kind of logistic car electricity as described in claim 1 drives bridge speed changer, it is characterised in that: the front end of the input shaft is corresponding The first deep groove ball bearing, the first snap ring, oil sealing, the rear end suit of the input shaft are sequentially set in the installation site of the front housing There is after the second deep groove ball bearing location and installation in the deep groove ball bearing hole of the gearbox body, the second snap ring axial restraint Second deep groove ball bearing.
8. a kind of logistic car electricity as described in claim 1 drives bridge speed changer, it is characterised in that: the front end of the jackshaft is set with There is cylinder roller bearing rear support to be positioned in the jackshaft installation annular groove of the front housing, the rear end of the jackshaft passes through third Deep groove ball bearing location and installation is in the jackshaft positioning hole of the gearbox body.
9. a kind of logistic car electricity as described in claim 1 drives bridge speed changer, it is characterised in that: all gears are all made of thin and tall Tooth.
10. a kind of logistic car electricity as described in claim 1 drives bridge speed changer, it is characterised in that: the synchronizer, which is circumscribed with, to be dialled Component is pitched, the pull-fork assembly is circumscribed with shift motor.
CN201811572151.9A 2018-12-21 2018-12-21 A kind of logistic car electricity drive bridge speed changer Pending CN109372958A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811572151.9A CN109372958A (en) 2018-12-21 2018-12-21 A kind of logistic car electricity drive bridge speed changer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811572151.9A CN109372958A (en) 2018-12-21 2018-12-21 A kind of logistic car electricity drive bridge speed changer

Publications (1)

Publication Number Publication Date
CN109372958A true CN109372958A (en) 2019-02-22

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Application Number Title Priority Date Filing Date
CN201811572151.9A Pending CN109372958A (en) 2018-12-21 2018-12-21 A kind of logistic car electricity drive bridge speed changer

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105757210A (en) * 2016-04-23 2016-07-13 中国第汽车股份有限公司 Integrated driving device for two-level electric vehicle
CN206159406U (en) * 2016-10-20 2017-05-10 江西海峰重工科技有限责任公司 Main speed reducer assembly
CN207437716U (en) * 2017-10-23 2018-06-01 重庆洲煌传动设备有限公司 Two shift transmission transmission mechanism of electric car
CN108757898A (en) * 2018-06-06 2018-11-06 中国第汽车股份有限公司 A kind of electric drive list gear reducer structure with neutral gear
CN210196369U (en) * 2018-12-21 2020-03-27 苏州绿控传动科技股份有限公司 Logistics vehicle electric drive axle transmission

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105757210A (en) * 2016-04-23 2016-07-13 中国第汽车股份有限公司 Integrated driving device for two-level electric vehicle
CN206159406U (en) * 2016-10-20 2017-05-10 江西海峰重工科技有限责任公司 Main speed reducer assembly
CN207437716U (en) * 2017-10-23 2018-06-01 重庆洲煌传动设备有限公司 Two shift transmission transmission mechanism of electric car
CN108757898A (en) * 2018-06-06 2018-11-06 中国第汽车股份有限公司 A kind of electric drive list gear reducer structure with neutral gear
CN210196369U (en) * 2018-12-21 2020-03-27 苏州绿控传动科技股份有限公司 Logistics vehicle electric drive axle transmission

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