CN106891717A - A kind of double drive axle that can be realized back axle lifting and drive - Google Patents

A kind of double drive axle that can be realized back axle lifting and drive Download PDF

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Publication number
CN106891717A
CN106891717A CN201710048673.8A CN201710048673A CN106891717A CN 106891717 A CN106891717 A CN 106891717A CN 201710048673 A CN201710048673 A CN 201710048673A CN 106891717 A CN106891717 A CN 106891717A
Authority
CN
China
Prior art keywords
axle
jackshaft
differential
wheel
inter
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
CN201710048673.8A
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Chinese (zh)
Inventor
迟述迪
李兴瑞
林方军
王国元
李雪亭
郝毅兴
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.)
Shandong Pengxiang Automobile Co Ltd
Original Assignee
Shandong Pengxiang 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 Shandong Pengxiang Automobile Co Ltd filed Critical Shandong Pengxiang Automobile Co Ltd
Priority to CN201710048673.8A priority Critical patent/CN106891717A/en
Publication of CN106891717A publication Critical patent/CN106891717A/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
    • B60K17/00Arrangement or mounting of transmissions in vehicles
    • B60K17/04Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/06Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
    • B60K17/08Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing of mechanical type
    • 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

Abstract

The invention discloses a kind of double drive axle that can be realized back axle lifting and drive, by middle axle assembly(50), rear axle assy(60)Composition double drive axle, is characterized in, by insertion axle(1), jackshaft active roller gear(8), half shaft wheel after inter-axle differential(9), input shaft(10), rolling bearing(12), jackshaft driven cylindrical gear(13), jackshaft drive bevel gear(14), jackshaft driven wheel of differential(15), jackshaft left half axle wheel(16), jackshaft right axle shaft wheel(17), jackshaft left half axle(18), jackshaft right axle shaft(19), insertion aixs cylinder edge(21)Axle assembly in composition(50)Dynamical system;By return spring(2), shift fork(3), shift fork axle(4), piston(5), cylinder(6), engaging sleeve(7)Axle assembly in composition(50)Power to rear axle assy(60)The power control system of transmission, controls insertion axle(1)With half shaft wheel after inter-axle differential(9)Consolidation with disconnect, can realize that vehicle drive axle drives function entirely, vehicle can be solved again disconnect rear axle power in the case of unloaded or underloading to transmit and realize back axle enhanced feature.

Description

A kind of double drive axle that can be realized back axle lifting and drive
Technical field:
The present invention relates to technical fields such as automotive axle, gear reduction units, specifically one kind can realize back axle lifting and drive Dynamic double drive axle.
Background technology:
Automotive axle carries vehicle and carries, walks, braking, increasing the effect of torsion, transmitting torque and reasonable distribution to left and right wheelses. Automobile needs vehicle bridge to provide carrying, high pulling torque greatly in full load, and being carried with the dispersion for realizing vehicle is reduced the destruction of road pavement, put down Steady starting, the function of normal operation, now need all drive axles of vehicle to both participate in carrying and drive;When automobile no-load return trip or When contained goods is light parabolic product, vehicle presses the carrying of the drive axle of maximum mounted mass design and driving force by great mistake It is surplus, and because the drive axle quantity for participating in is more, cause that tire frictional resistance is big, vehicle transmission efficiency is low, oil consumption is high.In order to carry Transmission efficiency of the vehicle high under unloaded or light condition, cut operating costs, more rational way is to carry jackshaft or back axle Rise, realize double drive bridges to single conversion for driving bridge.
What current vehicle can realize back axle enhanced feature is carrying bogie, does not have driving function;It is architectural limitation, it is existing Double drive axle only has driving bearing capacity, and jackshaft power is transferred directly to back axle cannot be selected to disconnect, and back axle does not possess lifting Function.
The content of the invention:
The purpose of the present invention is to overcome the shortcomings of above-mentioned prior art, and provides a kind of duplex that can be realized back axle lifting and drive Drive axle;Mainly solve existing double drive axle and there was only driving function, the problem that back axle can not be lifted.
The technical scheme is that:It is a kind of can realize back axle lifting and drive double drive axle, by middle axle assembly, after Axle assembly constitute double drive axle, it is characterized in that, by insertion axle, return spring, shift fork, shift fork axle, piston, cylinder, Half shaft wheel after engaging sleeve, jackshaft active roller gear, inter-axle differential, input shaft, inter-axle differential differential lock, rolling bearing, Jackshaft driven cylindrical gear, jackshaft drive bevel gear, jackshaft driven wheel of differential, jackshaft left half axle wheel, jackshaft right axle shaft wheel, jackshaft The transmission system of axle assembly in left half axle, jackshaft right axle shaft, rolling bearing, insertion aixs cylinder edge composition;Wherein by insertion axle, jackshaft Half shaft wheel, input shaft, rolling bearing, jackshaft driven cylindrical gear, jackshaft active conical tooth after active roller gear, inter-axle differential Wheel, jackshaft driven wheel of differential, jackshaft left half axle wheel, jackshaft right axle shaft wheel, jackshaft left half axle, jackshaft right axle shaft, insertion aixs cylinder edge The dynamical system of axle assembly in composition;Axle assembly in being made up of return spring, shift fork, shift fork axle, piston, cylinder, engaging sleeve The power control system that power is transmitted to rear axle assy, the consolidation of half shaft wheel and disconnection after control insertion axle and inter-axle differential, The engine torque that realization is transmitted from input shaft is transmitted or disconnected to rear axle assy;The transmission system of middle axle assembly is by power System and power control system are constituted;
Described jackshaft active roller gear and the cooperation that input shaft is unthreaded hole and optical axis, by inter-axle differential and input shaft both Mutually differential can rotate and both lockings can be turned into by a rigid body by inter-axle differential differential lock;Jackshaft driven cylindrical gear It is a pair of meshing cylindrical gear pair with jackshaft active roller gear;Jackshaft driven cylindrical gear is by spline and jackshaft active conical tooth Wheel is affixed, and jackshaft drive bevel gear and jackshaft driven wheel of differential are a pair of meshing bevel gear pairs;Jackshaft left half axle wheel and jackshaft are right Half shaft wheel is rotated by inter-wheel differential with jackshaft driven wheel of differential;Jackshaft left half axle and jackshaft right axle shaft are by spline point It is not affixed with jackshaft left half axle wheel and jackshaft right axle shaft wheel;Half shaft wheel passes through inter-axle differential with input shaft one after inter-axle differential Rise and rotate, insertion axle one end be supported on inter-axle differential through rolling bearing after in half shaft wheel, the other end bridges formula through rolling bearing Covered after being supported on axle housing, insertion axle is fixedly connected with insertion aixs cylinder edge, and insertion axle has relative to half shaft wheel after inter-axle differential Two states, affixed and relative rotation;Engagement is cased with two kinds of internal splines of size, after big internal spline and inter-axle differential outside half shaft wheel Spline is meshed, and is slid axially along half shaft wheel external splines after inter-axle differential, the small internal spline of engaging sleeve and insertion axle external splines It is meshed, is slid axially along insertion axle external splines;Cylinder is fixed on reducer shell;Cylinder head portions leave passage, living Plug forms an annular seal space with cylinder axial direction, and piston slides axially in cylinder chamber body;Shift fork axle is coordinated by hole with axle It is supported on reducer shell, slides axially, and is rigidly connected with piston;Return spring is enclosed within shift fork axle, return spring one End is contacted with shift fork, and the other end is contacted with reducer shell;Shift fork one end is fixed in shift fork axle and is axially moved with shift fork axle, and one End acts on drive engaging sleeve in engaging sleeve annular groove and axially moves;By half shaft wheel spline after engaging sleeve and inter-axle differential Engagement with separate, realize after inter-axle differential the consolidation of half shaft wheel and insertion axle and disconnect.
It is of the present invention that a kind of to realize that compared with the prior art back axle lifting and the double drive axle for driving have prominent The substantive distinguishing features for going out and marked improvement:Back axle can be lifted as needed(It is not involved in carrying and drives), can drive(Hold simultaneously Carry), the characteristics of existing double drive axle driving force is big, road conditions are adaptable, again can vehicle is unloaded or underloading in the case of Disconnect double drive axle rear axle power and realize back axle enhanced feature, to improve system of vehicle transmission efficiency, energy-saving and emission-reduction, reduce vehicle The characteristics of operation cost.
Brief description of the drawings:
Fig. 1 is that the double drive bridges of vehicle drive state diagram entirely;
Fig. 2 is the double drive bridge back axle lifting state diagrams of vehicle;
Fig. 3 is power transmission control system engagement of the invention, and double drive bridges drive status architecture schematic diagram entirely;
Fig. 4 is the partial enlargement structural representation of Fig. 3;
Fig. 5 is power transmission control system engagement of the invention, and double drive bridges drive another structural representation of state entirely;
Fig. 6 is that power transmission control system of the invention is separated, and back axle lifting jackshaft list drives status architecture schematic diagram;
Fig. 7 is the partial enlargement structural representation of Fig. 6;
Fig. 8 is that power transmission control system of the invention is separated, and back axle lifting is single to drive another structural representation of state.
Specific embodiment:
In order to be better understood from and implement, specific embodiment is given below in conjunction with the accompanying drawings and describes the present invention in detail;Illustrated embodiment It is only used for explaining the present invention, is not intended to limit the scope of the present invention.
Embodiment 1, referring to Fig. 1,2,3,4,5,6,7,8, by jackshaft active roller gear 8 and the unthreaded hole of input shaft 10 and optical axis Coordinate, mutually differential can be rotated by inter-axle differential and input shaft 10, can be incited somebody to action by inter-axle differential differential lock 11 again Both lockings turn into a rigid body, and jackshaft driven cylindrical gear 13 and jackshaft active roller gear 8 are a pair of meshing roller gears It is secondary;By jackshaft driven cylindrical gear 13 by spline, jackshaft drive bevel gear 14 and jackshaft affixed with jackshaft drive bevel gear 14 Driven wheel of differential 15 is a pair of meshing bevel gear pair, jackshaft left half axle wheel 16 and jackshaft right axle shaft wheel 17 by inter-wheel differential with Jackshaft driven wheel of differential 15 is rotated together;By jackshaft left half axle 18 and jackshaft right axle shaft 19 by spline respectively with jackshaft left half axle Wheel 16 and jackshaft right axle shaft wheel 17 are affixed;Half shaft wheel 9 is rotated by inter-axle differential with input shaft 10 after inter-axle differential; After the one end of insertion axle 1 is supported on into inter-axle differential through rolling bearing 12 in half shaft wheel 9, the other end bridges formula through rolling bearing 20 Covered after being supported on axle housing, insertion axle 1 is fixedly connected by spline with insertion aixs cylinder edge 21, and insertion axle 1 is relative to shaft space difference speed Half shaft wheel 9 has two states after device, i.e., affixed and relative rotation;The dynamical system of axle assembly 50 in formation;
Engaging sleeve 7 has two kinds of internal splines of size, and big internal spline is meshed with the external splines of half shaft wheel after inter-axle differential 9, it is possible to Slid axially on the external splines of half shaft wheel 9 after inter-axle differential;The small internal spline of engaging sleeve 7 is meshed with the external splines of insertion axle 1, And can be slid axially on the external splines of insertion axle 1;Cylinder 6 is fixed on reducer shell by screw thread;Stay the end of cylinder 6 There is passage, piston 5 forms an annular seal space with cylinder 6 in axial direction, and piston 5 can slide axially in the cavity of cylinder 6; Shift fork axle 4 coordinates to be supported on reducer shell by hole with axle can slide axially and be rigidly connected with piston 5;By return spring 2 are enclosed within shift fork axle 4, and the one end of return spring 2 is contacted with shift fork 3, and the other end is contacted with reducer shell, and return spring 2 is not There is certain elastic force under the installation original state of logical gases at high pressure, shift fork 3 is pressed against on the reducer shell of piston side;Dial Pitch 3 one end and be fixed in shift fork axle 4 and be axially moved with shift fork axle 4, the other end acts on and engaging sleeve is driven in the annular groove of engaging sleeve 7 7 axially move;The power control system that the power of axle assembly 50 is transmitted to rear axle assy 60 in formation;
The transmission system of axle assembly 50 in being made up of above-mentioned dynamical system and power control system, by middle axle assembly 50 and back axle Assembly 60 is connected by power transmission shaft;By the engagement of engaging sleeve 7 and the spline of half shaft wheel after inter-axle differential 9 with separate, realize axle Between after differential mechanism the consolidation of half shaft wheel 9 and insertion axle 1 with disconnect so that the power of axle assembly 50 is passed to rear axle assy 60 in controlling Pass or disconnect, upon opening, rear axle assy 60 can be lifted;Can realize that back axle is carried by one kind of the invention formed above The double drive axle for rising and driving.
A kind of double drive axle that can be realized back axle lifting and drive of the present invention, when vehicle heavy duty, double drive bridges are complete Portion participates in driving, and referring to Fig. 1, Fig. 3, Fig. 4, Fig. 5, now gases at high pressure disconnection, does not have gases at high pressure, in return bullet in cylinder 6 Push shift fork 3 to piston 5 side in the presence of the spring force of spring 2, shift fork 3 drives engaging sleeve 7 by interior external splines by insertion axle 1 and axle Between after differential mechanism half shaft wheel 9 consolidate --- normal engagement.Jackshaft active roller gear 8 is by inter-axle differential gear and input Axle 10 is connected, and is rotated with input shaft 10.Jackshaft driven cylindrical gear 13 is consolidated by spline with jackshaft drive bevel gear 14. Jackshaft active roller gear 8 and jackshaft driven cylindrical gear 13 partner cylindrical gear pair.Jackshaft drive bevel gear 14 is with Bridge driven cylindrical gear 13 partners bevel gear pair.From the next moment of torsion of engine mission transmission through the input of input shaft 10 and one Be divided into two, a part of moment of torsion through jackshaft active roller gear 8 → jackshaft, 13 → jackshaft of driven cylindrical gear drive bevel gear 14 → Jackshaft driven wheel of differential 15 → jackshaft left half axle wheel 16, jackshaft right axle shaft 17 → jackshaft of wheel left half axle 18, jackshaft right axle shaft 19 are passed It is handed to the driving function of axle assembly 50 during jackshaft left and right wheelses are realized;Another part is by half shaft wheel after inter-axle differential 9 → pass through 21 → power transmission shaft of axis 1 → insertion aixs cylinder edge → rear axle assy 60 realizes the driving of rear axle assy 60, so as to realize double-axle It is complete to drive function.
When vehicle underloading or it is unloaded when, referring to Fig. 2, Fig. 6, Fig. 7, Fig. 8, for improve the transmission efficiency of vehicle, energy-saving and emission-reduction, Car operation expense is reduced, the power of rear axle assy 60 of disconnection double drive axle is transmitted and lifts rear axle assy 60 and makes rear axle assy 60 tires depart from ground.When needing the power interruption of rear axle assy 60 and being lifted, concrete operations are as follows:Gases at high pressure pass through Air pipe interface enters in the annular seal space that cylinder 6 and piston 5 are formed, and acts on axial thrust is produced on piston 5, and piston 5 is promoted Shift fork axle 4, the compression retracteding position spring 2 of shift fork 3 axially move, and then shift fork 3 drives half shaft wheel after engaging sleeve 7 and inter-axle differential 9 separate;Shaft space difference speed lock 11 links in the presence of gases at high pressure simultaneously, and jackshaft active roller gear 8 is firm with input shaft 10 Property connection.When engaging sleeve 7 is separated with half shaft wheel after inter-axle differential 9, from vehicle motor gearbox by input shaft 10 to Rear axle assy 60 transmission power interruption, no longer through insertion axle 1 to rear axle assy 60 transmit power, institute it is dynamic through jackshaft actively Roller gear 8 → jackshaft driven cylindrical gear 13 → jackshaft drive bevel gear 14 → jackshaft driven wheel of differential 15 → jackshaft left half axle Wheel 16, jackshaft right axle shaft 17 → jackshaft of wheel left half axle 18, jackshaft right axle shaft 19 is transferred to the left and right wheelses of middle axle assembly 50, realizes car Single bridge drives traveling.

Claims (1)

1. it is a kind of to realize the double drive axle that back axle is lifted and driven, by middle axle assembly(50), rear axle assy(60)Composition is double Connection drive axle, it is characterised in that by insertion axle(1), return spring(2), shift fork(3), shift fork axle(4), piston(5), cylinder (6), engaging sleeve(7), jackshaft active roller gear(8), half shaft wheel after inter-axle differential(9), input shaft(10), inter-axle differential Differential lock(11), rolling bearing(12), jackshaft driven cylindrical gear(13), jackshaft drive bevel gear(14), jackshaft is from mantle tooth Wheel(15), jackshaft left half axle wheel(16), jackshaft right axle shaft wheel(17), jackshaft left half axle(18), jackshaft right axle shaft(19), the axis of rolling Hold(20), insertion aixs cylinder edge(21)Axle assembly in composition(50)Transmission system;Wherein by insertion axle(1), jackshaft active cylinder Gear(8), half shaft wheel after inter-axle differential(9), input shaft(10), rolling bearing(12), jackshaft driven cylindrical gear(13), in Bridge drive bevel gear(14), jackshaft driven wheel of differential(15), jackshaft left half axle wheel(16), jackshaft right axle shaft wheel(17), jackshaft it is left Semiaxis(18), jackshaft right axle shaft(19), insertion aixs cylinder edge(21)Axle assembly in composition(50)Dynamical system;By return spring (2), shift fork(3), shift fork axle(4), piston(5), cylinder(6), engaging sleeve(7)Axle assembly in composition(50)Power it is total to back axle Into(60)The power control system of transmission, controls insertion axle(1)With half shaft wheel after inter-axle differential(9)Consolidation with disconnect, it is real Now from input shaft(10)The engine torque for transmitting is to rear axle assy(60)Transmission or disconnection;Middle axle assembly(50)Transmission System is made up of dynamical system and power control system;
Described jackshaft active roller gear(8)With input shaft(10)The cooperation of unthreaded hole and optical axis, by inter-axle differential with Input shaft(10)Mutually differential can rotate and inter-axle differential differential lock can be passed through(11)Both lockings are turned into a rigid body; Jackshaft driven cylindrical gear(13)With jackshaft active roller gear(8)It is a pair of meshing cylindrical gear pair;The driven Cylinder Gear of jackshaft Wheel(13)By spline and jackshaft drive bevel gear(14)It is affixed, jackshaft drive bevel gear(14)With jackshaft driven wheel of differential(15) It is a pair of meshing bevel gear pair;Jackshaft left half axle wheel(16)With jackshaft right axle shaft wheel(17)It is driven with jackshaft by inter-wheel differential Bevel gear(15)Rotate together;Jackshaft left half axle(18)With jackshaft right axle shaft(19)By spline respectively with jackshaft left half axle wheel (16)With jackshaft right axle shaft wheel(17)It is affixed;Half shaft wheel after inter-axle differential(9)By inter-axle differential with input shaft(10)One Rise and rotate, insertion axle(1)One end is through rolling bearing(12)It is supported on half shaft wheel after inter-axle differential(9)On, the other end is through rolling Bearing(20)The formula of bridging is covered after being supported on axle housing, insertion axle(1)With insertion aixs cylinder edge(21)It is fixedly connected, insertion axle(1)Phase For half shaft wheel after inter-axle differential(9)There are two states, affixed and relative rotation;Engaging sleeve(7)There are two kinds of internal splines of size, Half shaft wheel after big internal spline and inter-axle differential(9)External splines is meshed, along half shaft wheel after inter-axle differential(9)External splines does axle To slip, engaging sleeve(7)Small internal spline and insertion axle(1)External splines is meshed, along insertion axle(1)External splines slides axially; Cylinder(6)It is fixed on reducer shell;Cylinder(6)Leave passage, piston in end(5)With cylinder(6)Axial direction is formed One annular seal space, piston(5)In cylinder(6)Slid axially in cavity;Shift fork axle(4)Coordinated by hole and axle and be supported on decelerator On housing, slide axially, and and piston(5)It is rigidly connected;Return spring(2)It is enclosed within shift fork axle(4)On, return spring(2)One End and shift fork(3)Contact, the other end is contacted with reducer shell;Shift fork(3)One end is fixed on shift fork axle(4)On with shift fork axle (4)It is axially moved, one end acts on engaging sleeve(7)Engaging sleeve is driven in annular groove(7)Axially move;By engaging sleeve(7) With half shaft wheel after inter-axle differential(9)The engagement of spline with separate, realize half shaft wheel after inter-axle differential(9)With insertion axle(1) Consolidation with disconnect.
CN201710048673.8A 2017-01-23 2017-01-23 A kind of double drive axle that can be realized back axle lifting and drive Pending CN106891717A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710048673.8A CN106891717A (en) 2017-01-23 2017-01-23 A kind of double drive axle that can be realized back axle lifting and drive

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710048673.8A CN106891717A (en) 2017-01-23 2017-01-23 A kind of double drive axle that can be realized back axle lifting and drive

Publications (1)

Publication Number Publication Date
CN106891717A true CN106891717A (en) 2017-06-27

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CN201710048673.8A Pending CN106891717A (en) 2017-01-23 2017-01-23 A kind of double drive axle that can be realized back axle lifting and drive

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110816169A (en) * 2019-09-02 2020-02-21 一汽解放汽车有限公司 Rear drive axle bearing block assembly
CN111845334A (en) * 2020-07-16 2020-10-30 北京福田戴姆勒汽车有限公司 Vehicle with a steering wheel
CN111929058A (en) * 2020-07-02 2020-11-13 中国第一汽车股份有限公司 Static torsion test device and method for through bridge driving cylindrical gear shaft
CN113415158A (en) * 2021-07-30 2021-09-21 东风商用车有限公司 Control method and control system for tractor drive axle

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110816169A (en) * 2019-09-02 2020-02-21 一汽解放汽车有限公司 Rear drive axle bearing block assembly
CN111929058A (en) * 2020-07-02 2020-11-13 中国第一汽车股份有限公司 Static torsion test device and method for through bridge driving cylindrical gear shaft
CN111929058B (en) * 2020-07-02 2022-07-22 中国第一汽车股份有限公司 Static torsion test device and method for through bridge driving cylindrical gear shaft
CN111845334A (en) * 2020-07-16 2020-10-30 北京福田戴姆勒汽车有限公司 Vehicle with a steering wheel
CN113415158A (en) * 2021-07-30 2021-09-21 东风商用车有限公司 Control method and control system for tractor drive axle

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