CN113022226A - Double-power output electric drive axle - Google Patents

Double-power output electric drive axle Download PDF

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Publication number
CN113022226A
CN113022226A CN202110003359.4A CN202110003359A CN113022226A CN 113022226 A CN113022226 A CN 113022226A CN 202110003359 A CN202110003359 A CN 202110003359A CN 113022226 A CN113022226 A CN 113022226A
Authority
CN
China
Prior art keywords
stage
output
spline
driven gear
drive axle
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
CN202110003359.4A
Other languages
Chinese (zh)
Inventor
黄建国
尹思维
帅春桃
白清慧
常宗芳
白世伟
王波
王庆武
尹德龙
刘城
江欢
彭毅
黄婧
邝琦
黎志强
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.)
Dongfeng Automobile Co Ltd
Original Assignee
Dongfeng 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 Dongfeng Automobile Co Ltd filed Critical Dongfeng Automobile Co Ltd
Priority to CN202110003359.4A priority Critical patent/CN113022226A/en
Publication of CN113022226A publication Critical patent/CN113022226A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/12—Torque-transmitting axles
    • B60B35/121—Power-transmission from drive shaft to hub
    • B60B35/122—Power-transmission from drive shaft to hub using gearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT 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
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
    • B60K17/165—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing provided between independent half axles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT 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
    • B60K25/00—Auxiliary drives
    • B60K25/02—Auxiliary drives directly from an engine shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT 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
    • B60K25/00—Auxiliary drives
    • B60K25/02—Auxiliary drives directly from an engine shaft
    • B60K2025/028—Auxiliary drives directly from an engine shaft by a pneumatic transmission
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction 

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Retarders (AREA)

Abstract

The invention relates to a double-power output electric drive axle which comprises a drive motor, a cylinder and an axle. The front end of the cylinder is used for feeding air to push a sliding meshing sleeve on the spline seat of the output shaft to move from the end A to the end B, the sliding meshing sleeve is in spline combination with the first-stage driven gear, and the spline seat of the output shaft is connected with the auxiliary power output flange through a spline; at the moment, the first-stage driven gear, the sliding meshing sleeve and the output shaft spline seat are connected with the output flange for transmission, so that auxiliary power output is realized; and air is fed from the rear end of the cylinder to push the sliding meshing sleeve on the spline seat of the output shaft to move from the end B to the end A, the sliding meshing sleeve is separated from the spline of the first-stage driven gear, and the output of the auxiliary power is interrupted. The drive axle of the invention can ensure that when the pure electric truck is arranged in the whole vehicle, a motor is not separately adopted to provide auxiliary power or a power takeoff is not designed and installed, thereby saving the arrangement space, reducing the weight of the whole vehicle, simultaneously improving the integration level and the transmission efficiency and obtaining more endurance mileage.

Description

Double-power output electric drive axle
Technical Field
The invention relates to the technical field of pure electric trucks, in particular to a double-power output electric drive axle.
Background
When the pure electric special vehicle needs auxiliary power, two schemes are generally adopted.
Scheme 1: the motor is separately arranged to provide power.
This solution requires the addition of a motor, electrical wiring and control software. The arrangement space of the whole vehicle is influenced, and the cost of the whole vehicle is increased; heavy, can greatly reduce the endurance mileage of the whole vehicle
Scheme 2: a window is opened on the reduction gearbox of the electric drive axle, and a power takeoff is connected with the gear of the reduction gearbox to realize power output. The power takeoff needs to increase the cost, occupies a large space, influences the arrangement of the whole vehicle, has an insufficiently compact structure, is low in transmission efficiency and heavy in weight, and can reduce the endurance mileage of the whole vehicle.
Disclosure of Invention
In order to solve the problems, the invention provides a double-power output electric drive axle, which realizes double power output through a pure electric drive axle, cancels a motor in a scheme 1 or a power takeoff in a scheme 2, and achieves the purposes of simplifying the arrangement of the whole automobile, reducing the weight, reducing the cost and prolonging the endurance mileage of the whole automobile.
The technical scheme adopted by the invention is as follows: the utility model provides a double dynamical output electric drive axle, includes driving motor, cylinder and axle, its characterized in that: the driving motor is connected with the first-stage driving gear for transmission, the first-stage driving gear drives the second-stage driving gear to rotate through the first-stage driven gear, the second-stage driving gear drives the differential mechanism to move through the second-stage driven gear, the differential mechanism drives the half shaft to rotate, and the half shaft is fixedly connected with the wheels on two sides, so that the automobile runs;
the front end of the cylinder is used for feeding air to push a sliding meshing sleeve on an output shaft spline seat to move from an end A to an end B, the sliding meshing sleeve is in spline combination with the first-stage driven gear, and the output shaft spline seat is connected with the auxiliary power output flange through a spline; at the moment, the first-stage driven gear, the sliding meshing sleeve and the output shaft spline seat are connected with an output flange for transmission, so that auxiliary power output is realized;
and air is fed from the rear end of the air cylinder to push the sliding meshing sleeve on the spline seat of the output shaft to move from the end B to the end A, the sliding meshing sleeve is separated from the spline of the first-stage driven gear, and the output of the auxiliary power is interrupted.
Preferably, an output shaft of the driving motor is fixedly connected with a first-stage driving gear through a spline shaft, and two ends of the first-stage driving gear are supported through an input shaft bearing.
Preferably, the first-stage driven gear and the second-stage driving gear are fixed together in an interference fit mode.
Preferably, the two ends of the first-stage driven gear and the second-stage driving gear are supported by a rear bearing of the intermediate shaft, a bearing of the output shaft and a front bearing of the intermediate shaft.
Preferably, the differential is supported at both ends by differential bearings.
Preferably, the number of the first-stage driving gear teeth is Z1, the number of the first-stage driven gear teeth is Z2, the number of the second-stage driving gear teeth is Z3, the number of the second-stage driven gear teeth is Z4, and the total reduction ratio from the driving motor to the wheels is Z2 × Z4/Z1 × Z3.
Further, the total speed reduction ratio from the driving motor to the auxiliary power output flange is Z2/Z1.
Preferably, the auxiliary power output flange is of an internal spline structure.
The beneficial effects obtained by the invention are as follows:
1. the drive axle can ensure that when the pure electric truck is arranged in the whole vehicle, a motor does not need to be independently adopted to provide auxiliary power or a power takeoff is designed and installed, so that the arrangement space is saved, the weight of the whole vehicle is reduced, meanwhile, the integration level is improved, the transmission efficiency is improved, and more cruising mileage can be obtained;
2. the motor, the transmission, the drive axle and the power takeoff are integrated, so that auxiliary power output can be realized in the running process of the automobile, and power is provided for auxiliary devices of the automobile such as a sprinkling device and a cleaning device;
3. according to the using working condition of the sanitation truck, the sanitation truck runs at a low speed during sprinkling and cleaning, the rated power of the motor drives the whole truck to run with surplus, and the split power is used for sprinkling and cleaning, so that the motor is always in an economic working mode, and the endurance mileage of the whole truck is prolonged;
4. the reduction is realized through the primary gear pair of the reduction gearbox, the auxiliary power output is provided, the loss of transmission efficiency caused by the gear pair of the traditional power takeoff is saved, the power transmission efficiency of the whole vehicle is improved, the energy is saved, and the cost is saved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is an enlarged view of a portion H of the auxiliary power output structure of fig. 1;
in the figure: 1. a motor; 2. a motor spline shaft; 3. an input shaft bearing; 4. a first-stage driving gear; 5. a rear bearing of the intermediate shaft; 6. a second stage drive gear; 7. a first stage driven gear; 8. a first stage driven gear spline; 9. sliding the meshing sleeve; 10. an output shaft spline housing; 11. a front bearing of the intermediate shaft; 12. an output shaft bearing; 13. an auxiliary power output flange; 14. a differential bearing; 15. a second stage driven gear; 16. a differential mechanism; 17. a half shaft; 18. a wheel; 19. a reducer housing; 20. oil sealing; 21. and a cylinder.
Detailed Description
The invention will be further described with reference to the following drawings and specific embodiments.
As shown in fig. 1-2, the dual-power output electric drive axle of the present invention is mainly applied to special vehicles such as sanitation vehicles, etc., and provides power when actions such as cleaning, water sprinkling, etc. are required, and comprises a drive motor 1, a reduction gearbox and an axle, wherein the drive motor 1 is fixed with a first-stage driving gear 4 through a spline shaft 2 and rotates under the support of an input shaft bearing 3, and the number of teeth of the first-stage driving gear is z 1; the first-stage driven gear 7 and the second-stage driving gear 6 are fixed together in an interference fit mode and rotate around the intermediate shaft rear bearing 5 and the intermediate shaft front bearing 11, the number of teeth of the first-stage driven gear is z2, and the number of teeth of the second-stage driving gear is z 3; the second-stage driven gear 15 is fixed on the differential, and the number of the gear teeth is z 4; the differential 16 drives a half shaft 17 to rotate under the support of a differential bearing 14, and the half shaft 17 is fixedly connected with wheels 18 at two sides; and power is provided to drive the automobile to run. The total motor-to-wheel reduction ratio at this time is Z2 × Z4/Z1 × Z3.
When auxiliary power output is needed, air is fed from the front end of the air cylinder 21, the sliding meshing sleeve 9 on the output shaft spline seat 10 is pushed to move from the end A to the end B, the sliding meshing sleeve 9 is combined with the first-stage driven gear spline 8, the output shaft spline seat 10 is connected with the auxiliary power output flange 13 through a spline, the auxiliary power output flange 13 is designed to be of an inner spline structure, and a water pump, an oil pump and the like are directly connected through an outer spline. At the moment, the first-stage driven gear 7, the sliding meshing sleeve 9, the output shaft spline seat 10 and the output flange 13 are connected into a whole, the rear bearing 5 of the intermediate shaft and the output shaft bearing 12 are supported and rotated to realize power output, and the power reduction ratio is Z2/Z1.
When the auxiliary power output is not needed, the rear end of the air cylinder 21 is filled with air, the sliding meshing sleeve 9 on the spline seat 10 of the output shaft is pushed to move from the end B to the end A, the sliding meshing sleeve 9 is separated from the first-stage driven gear spline 8, and the power output is interrupted.
The foregoing shows and describes the general principles and principal structural features of the present invention. The present invention is not limited to the above examples, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (8)

1. The utility model provides a double dynamical output electric drive axle, includes driving motor (1), cylinder (21) and axle, its characterized in that: the automobile driving device is characterized in that a first-stage driving gear (4), a first-stage driven gear tooth number (7), a second-stage driving gear (6), a second-stage driven gear (15), wheels (18) and an auxiliary power output flange (13) are arranged on an axle, the driving motor (1) is connected with the first-stage driving gear (4) for transmission, the first-stage driving gear (4) drives the second-stage driving gear (6) to rotate through the first-stage driven gear (7), the second-stage driving gear (6) drives the differential mechanism (16) to move through the second-stage driven gear (15), the differential mechanism (16) drives the half shaft (17) to rotate, and the half shaft (17) is fixedly connected with the wheels (18) on the two sides to realize automobile driving;
the front end of the air cylinder (21) is used for feeding air to push a sliding meshing sleeve (9) on an output shaft spline seat (10) to move from an end A to an end B, the sliding meshing sleeve (9) is combined with a first-stage driven gear spline (8), and the output shaft spline seat (10) is connected with an auxiliary power output flange (13) through a spline; at the moment, the first-stage driven gear (7), the sliding meshing sleeve (9) and the output shaft spline seat (10) are connected with an output flange (13) for transmission, so that auxiliary power output is realized;
the rear end of the air cylinder (21) is filled with air, a sliding meshing sleeve (9) on the spline seat (10) of the output shaft is pushed to move from the end B to the end A, the sliding meshing sleeve (9) is separated from the spline (8) of the first-stage driven gear, and the output of auxiliary power is interrupted.
2. The dual-power-output electric drive axle of claim 1, wherein: the output shaft of the driving motor (1) is fixedly connected with the first-stage driving gear (4) through the spline shaft (2), and two ends of the first-stage driving gear (4) are supported through the input shaft bearing (3).
3. The dual-power-output electric drive axle of claim 1, wherein: and the first-stage driven gear (7) and the second-stage driving gear (6) are fixed together in an interference fit manner.
4. The dual-power-output electric drive axle of claim 1, wherein: and two ends of the first-stage driven gear (7) and the second-stage driving gear (6) are supported by a middle shaft rear bearing (5), an output shaft bearing (12) and a middle shaft front bearing (11).
5. The dual-power-output electric drive axle of claim 1, wherein: the differential (16) is supported at both ends by differential bearings (14).
6. The dual-power-output electric drive axle of claim 1, wherein: the number of teeth of the first-stage driving gear (4) is Z1, the number of teeth of the first-stage driven gear (7) is Z2, the number of teeth of the second-stage driving gear (6) is Z3, the number of teeth of the second-stage driven gear (15) is Z4, and the total reduction ratio from the driving motor (1) to the wheel (18) is Z2X Z4/Z1X Z3.
7. The dual-power-output electric drive axle of claim 6, wherein: the total speed reduction ratio from the driving motor (1) to the auxiliary power output flange (13) is Z2/Z1.
8. The dual-power-output electric drive axle of claim 1, wherein: the auxiliary power output flange (13) is of an internal spline structure.
CN202110003359.4A 2021-01-04 2021-01-04 Double-power output electric drive axle Pending CN113022226A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110003359.4A CN113022226A (en) 2021-01-04 2021-01-04 Double-power output electric drive axle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110003359.4A CN113022226A (en) 2021-01-04 2021-01-04 Double-power output electric drive axle

Publications (1)

Publication Number Publication Date
CN113022226A true CN113022226A (en) 2021-06-25

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Application Number Title Priority Date Filing Date
CN202110003359.4A Pending CN113022226A (en) 2021-01-04 2021-01-04 Double-power output electric drive axle

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113602086A (en) * 2021-08-16 2021-11-05 陕西法士特齿轮有限责任公司 Electric drive axle with power takeoff and working method thereof
CN114537111A (en) * 2022-03-17 2022-05-27 陕西法士特齿轮有限责任公司 Double-motor electric drive axle assembly and vehicle

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202294292U (en) * 2011-10-12 2012-07-04 徐州徐工筑路机械有限公司 Power take-off device of chassis engine of pavement maintenance vehicle
CN102837607A (en) * 2012-10-10 2012-12-26 宁波市鄞州钜科传动部件有限公司 Force-taking device for automobile
CN104358831A (en) * 2014-10-29 2015-02-18 苏州大方特种车股份有限公司 Auxiliary power output mechanism of gearbox and gearbox
CN107139718A (en) * 2017-05-22 2017-09-08 东风汽车泵业有限公司 A kind of automobile accessory system and automobile
CN208778658U (en) * 2018-09-20 2019-04-23 重庆川渝精工机械配件开发有限公司 Multi-gear gear-case with power taking interface
CN110315953A (en) * 2019-07-09 2019-10-11 山东蓬翔汽车有限公司 A kind of Dual-speed-ratio pure electric vehicle truck driving axle with power takeoff

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202294292U (en) * 2011-10-12 2012-07-04 徐州徐工筑路机械有限公司 Power take-off device of chassis engine of pavement maintenance vehicle
CN102837607A (en) * 2012-10-10 2012-12-26 宁波市鄞州钜科传动部件有限公司 Force-taking device for automobile
CN104358831A (en) * 2014-10-29 2015-02-18 苏州大方特种车股份有限公司 Auxiliary power output mechanism of gearbox and gearbox
CN107139718A (en) * 2017-05-22 2017-09-08 东风汽车泵业有限公司 A kind of automobile accessory system and automobile
CN208778658U (en) * 2018-09-20 2019-04-23 重庆川渝精工机械配件开发有限公司 Multi-gear gear-case with power taking interface
CN110315953A (en) * 2019-07-09 2019-10-11 山东蓬翔汽车有限公司 A kind of Dual-speed-ratio pure electric vehicle truck driving axle with power takeoff

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113602086A (en) * 2021-08-16 2021-11-05 陕西法士特齿轮有限责任公司 Electric drive axle with power takeoff and working method thereof
CN114537111A (en) * 2022-03-17 2022-05-27 陕西法士特齿轮有限责任公司 Double-motor electric drive axle assembly and vehicle

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Application publication date: 20210625

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