CN110566640A - Multi-gear electrically-driven gearbox - Google Patents

Multi-gear electrically-driven gearbox Download PDF

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Publication number
CN110566640A
CN110566640A CN201910891991.XA CN201910891991A CN110566640A CN 110566640 A CN110566640 A CN 110566640A CN 201910891991 A CN201910891991 A CN 201910891991A CN 110566640 A CN110566640 A CN 110566640A
Authority
CN
China
Prior art keywords
gear
output shaft
input shaft
shaft
electromagnetic clutch
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
CN201910891991.XA
Other languages
Chinese (zh)
Inventor
聂征
陈志明
郝华
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.)
Xingyitong Aerospace Technology Nanjing Co Ltd
Original Assignee
Xingyitong Aerospace Technology Nanjing 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 Xingyitong Aerospace Technology Nanjing Co Ltd filed Critical Xingyitong Aerospace Technology Nanjing Co Ltd
Priority to CN201910891991.XA priority Critical patent/CN110566640A/en
Publication of CN110566640A publication Critical patent/CN110566640A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B60K17/02—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
    • 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
    • B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
    • B60K17/08—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing of mechanical type
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
    • F16D27/02—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with electromagnets incorporated in the clutch, i.e. with collecting rings
    • F16D27/04—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with electromagnets incorporated in the clutch, i.e. with collecting rings with axially-movable friction surfaces
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
    • F16D27/12—Clutch systems with a plurality of electro-magnetically-actuated clutches
    • 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
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/10—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts with one or more one-way clutches as an essential feature
    • 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
    • F16H2057/02039—Gearboxes for particular applications
    • F16H2057/02043—Gearboxes for particular applications for vehicle transmissions
    • 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
    • F16H2057/02091—Measures for reducing weight of gearbox
    • 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
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/0021—Transmissions for multiple ratios specially adapted for electric vehicles

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Structure Of Transmissions (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

the invention discloses a multi-gear electrically-driven gearbox, which belongs to the field of electric automobile gearboxes and comprises: a first drive motor and a second drive motor; the first input shaft is fixedly sleeved with an input shaft first gear and an input shaft second gear; a third gear of the input shaft is fixedly sleeved on the second input shaft; an output shaft; the output shaft is rotatably provided with an output shaft first gear, an output shaft second gear and an output shaft third gear, and the one-way clutch is arranged on the second input shaft or the output shaft and used for controlling the input shaft third gear to be meshed with the output shaft third gear; and the electromagnetic clutch device is fixedly sleeved on the output shaft and is used for controlling the connection of the first output shaft gear and the first input shaft gear and the connection of the second output shaft gear and the second input shaft gear. The problem of electric quantity utilization rate reduction caused by overhigh output torque is avoided. The economy of the vehicle is effectively improved.

Description

Multi-gear electrically-driven gearbox
Technical Field
The invention relates to the technical field of electric automobile gearboxes, in particular to a multi-gear electrically-driven gearbox.
background
at present, a pure electric bus is mostly driven by a single motor, a single-stage gearbox causes torque output generated by the motor to be completed at one time, perhaps uninterrupted power output is beneficial to starting acceleration, but is not beneficial to the economy and comfort of the bus, and the gearbox can not increase gears without limit in consideration of the problems of light weight and size, so that a multi-gear gearbox with a reasonable speed ratio range needs to be matched.
Disclosure of Invention
The present invention is directed to a multi-speed electrically driven transmission to solve the above problems.
To achieve the above object, the present invention provides a multiple speed electrically driven transmission comprising: a first drive motor and a second drive motor; the first input shaft is connected with the output end of a first driving motor, and a first gear and a second gear of the input shaft are fixedly sleeved on the first input shaft; the second input shaft is connected with the output end of a second driving motor, and a third gear of the input shaft is fixedly sleeved on the second input shaft; an output shaft; the output shaft is rotatably provided with an output shaft first gear, an output shaft second gear and an output shaft third gear, the output shaft first gear is correspondingly meshed with the input shaft first gear, the output shaft second gear is correspondingly meshed with the input shaft second gear, and the output shaft third gear is correspondingly meshed with the input shaft third gear; a one-way clutch provided on the second input shaft or the output shaft for controlling the engagement of the input shaft third gear with the output shaft third gear; and the electromagnetic clutch device is fixedly sleeved on the output shaft and is used for controlling the connection of the first output shaft gear and the first input shaft gear and the connection of the second output shaft gear and the second input shaft gear.
Furthermore, the electromagnetic clutch device comprises a first electromagnetic clutch and a second electromagnetic clutch, the first electromagnetic clutch and the second electromagnetic clutch are fixedly sleeved on the output shaft, the first electromagnetic clutch is used for controlling the first gear of the output shaft to be connected with the output shaft, and the second electromagnetic clutch is used for controlling the second gear of the output shaft to be connected with the output shaft.
further, the first electromagnetic clutch and the second electromagnetic clutch each include: the clutch armature is sleeved on the output shaft and is fixedly connected with the output shaft first gear and the output shaft second gear; the clutch friction plate set is sleeved on the output shaft through a key connection; and the clutch magnet yoke is fixedly sleeved on the output shaft and is matched with the clutch friction plate.
further, the first electromagnetic clutch and the second electromagnetic clutch are both connected with a power supply through coils.
Furthermore, the outer ring of the one-way clutch is fixedly connected with the third gear of the input shaft, and the inner ring of the one-way clutch is fixedly connected with the input shaft.
By applying the technical scheme of the invention, the beneficial effects are as follows: the vehicle can carry out many grades of variable speeds, adapt to the power requirement under the different road conditions, the problem of output torque too high causes electric quantity utilization ratio to descend has been avoided, the economic nature of vehicle has been improved effectively, cooperation through first electromagnetic clutch and second electromagnetic clutch has simplified the inside structure of gearbox, thereby realize lightweight design, adopt two motor coupling moreover, make the output torque of two motors can superpose, the dynamic behavior of vehicle has been increased, the travelling comfort of vehicle has been improved effectively.
Drawings
the accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.
in the drawings:
FIG. 1 shows an overall block diagram of the present invention;
Fig. 2 shows a schematic representation of the 2-speed transmission line of the electrically driven gearbox of the invention.
wherein the figures include the following reference numerals:
10. A first drive motor; 11. a first input shaft; 12. an input shaft first gear; 13. an input shaft second gear; 20. an output shaft; 21. an output shaft first gear; 22. an output shaft second gear; 23. a first electromagnetic clutch; 24. a second electromagnetic clutch; 25. an output shaft third gear; 30. a second drive motor; 31. a one-way clutch; 32. an input shaft third gear; 33. a second input shaft.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1, the present invention provides a multiple speed electrically driven transmission comprising: the clutch comprises a first driving motor 10, a first input shaft 11, an input shaft first gear 12, an input shaft second gear 13, an output shaft 20, an output shaft first gear 21, an output shaft second gear 22, a first electromagnetic clutch 23 and a second electromagnetic clutch 24. The first input shaft 11 is connected with the output end of the first driving motor 10, the first input shaft gear 12 and the second input shaft gear 13 are respectively and fixedly sleeved at the left end and the right end of the first input shaft 11 and synchronously rotate along with the first input shaft 11, and the first output shaft gear 21 and the second output shaft gear 22 are rotatably installed on the output shaft 20.
in the present embodiment, the first electromagnetic clutch 23 and the second electromagnetic clutch 24 are both energized by a coil to enable energization of the first electromagnetic clutch 23 and the second electromagnetic clutch 24.
Wherein, the first electromagnetic clutch 23 and the second electromagnetic clutch 24 each include: a clutch armature which is sleeved on the output shaft 20 and is fixedly connected with the output shaft first gear 21 and the output shaft second gear 22; a clutch friction plate set which is sleeved on the output shaft 20 through key connection; the clutch yoke is fixedly sleeved on the output shaft 20 and matched with the clutch friction plate, the clutch yoke attracts the clutch armature by switching on a power supply, the clutch friction plate set is pressed tightly, the rotating torque of the output shaft first gear 21 and the output shaft second gear 22 is transmitted to the inner friction plate through the outer friction plate by means of the friction force between the inner friction plate and the outer friction plate, and the spline shaft is driven to rotate by the inner friction plate, so that the torque is transmitted.
The multiple-speed electrically driven gearbox further comprises a second drive motor 30, a one-way clutch 31, a second input shaft 33, an input shaft third gear 32, and an output shaft third gear 25. The second input shaft 33 is connected with the output end of the second driving motor 30, the input shaft third gear 32 is fixedly sleeved on the second input shaft 33 and synchronously rotates with the second input shaft 33, and the output shaft third gear 25 is rotatably arranged on the output shaft 20.
as shown in fig. 1, the outer race of the one-way clutch 31 is fixedly connected to the input shaft third gear 32, and the inner race is fixedly connected to the input shaft.
As shown in fig. 2, taking an electric vehicle moving forward in 2-gear as an example, the clutch yoke is controlled to attract the clutch armature, the clutch friction plate set is pressed tightly, the rotating torque of the input shaft first gear 12 and the output shaft second gear 22 is transmitted to the inner friction plate through the outer friction plate by means of the friction force between the inner friction plate and the outer friction plate, the output shaft is driven to rotate by the inner friction plate, at this time, the transmission is switched to 2-gear, and the power is output along the first input shaft 11, the input shaft second gear 13, the output shaft second gear 22, the outer friction plate, the inner friction plate and the output shaft 20.
The transmission principle of each mode is as follows:
The first mode is as follows: first gear
First drive motor → first input shaft → input shaft first gear → output shaft first gear 21 → output shaft.
And a second mode: second gear
First drive motor → first input shaft → input shaft second gear → output shaft.
And a third mode: three-gear
Second drive motor → second input shaft → third gear of output shaft → output shaft.
and a fourth mode: two-gear combination
the first driving motor drives the first gear, the second driving motor drives the second gear, and the second gear assists the first gear to output power by controlling the coupling rotating speed of the double motors.
And a fifth mode: one-three combined gear
The first driving motor drives the first gear, the second motor drives the third gear, and the third gear and the first gear are assisted to output power by controlling the coupling rotating speed of the double motors.
The first input shaft and the second input shaft are coaxially arranged, and only one gear box is needed.
Through power switching or combination between the two driving motors, the gearbox realizes power transmission output of any one motor or simultaneous power transmission output of the two motors, namely power output of five modes including a first mode, a second mode, a third mode, a first combined gear, a second combined gear and a third combined gear, and can adapt to various working conditions of a vehicle.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
1. the vehicle can carry out multi-gear speed change, the power requirements under different road conditions are met, the problem that the electric quantity utilization rate is reduced due to overhigh output torque is solved, and the economical efficiency of the vehicle is effectively improved;
2. Through the matching of the first electromagnetic clutch and the second electromagnetic clutch, the structure inside the gearbox is simplified, and therefore the light design is realized;
3. By adopting the double-motor coupling, the output torques of the two motors can be superposed, the power performance of the vehicle is improved, and the comfort of the vehicle is effectively improved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. A multiple speed electrically driven transmission, comprising:
a first drive motor and a second drive motor;
the first input shaft is connected with the output end of a first driving motor, a first gear of the input shaft and a second gear of the input shaft are fixedly sleeved on the first input shaft, the second input shaft is connected with the output end of a second driving motor, and a third gear of the input shaft is fixedly sleeved on the second input shaft;
An output shaft; the output shaft is rotatably provided with an output shaft first gear, an output shaft second gear and an output shaft third gear, the output shaft first gear is correspondingly meshed with the input shaft first gear, the output shaft second gear is correspondingly meshed with the input shaft second gear, and the output shaft third gear is correspondingly meshed with the input shaft third gear;
A one-way clutch provided on the second input shaft or the output shaft for controlling the engagement of the input shaft third gear with the output shaft third gear;
And the electromagnetic clutch device is fixedly sleeved on the output shaft and is used for controlling the connection of the first output shaft gear and the first input shaft gear and the connection of the second output shaft gear and the second input shaft gear.
2. A multiple speed electrically driven transmission as defined in claim 1, wherein: the electromagnetic clutch device comprises a first electromagnetic clutch and a second electromagnetic clutch, the first electromagnetic clutch and the second electromagnetic clutch are fixedly sleeved on the output shaft, the first electromagnetic clutch is used for controlling the first gear of the output shaft to be connected with the output shaft, and the second electromagnetic clutch is used for controlling the second gear of the output shaft to be connected with the output shaft.
3. A multiple speed electrically driven transmission as defined in claim 2, wherein: the first electromagnetic clutch and the second electromagnetic clutch each include:
The clutch armature is sleeved on the output shaft and is fixedly connected with the output shaft first gear and the output shaft second gear;
The clutch friction plate set is sleeved on the output shaft through a key connection;
And the clutch magnet yoke is fixedly sleeved on the output shaft and is matched with the clutch friction plate.
4. A multiple speed electrically driven transmission as defined in claim 2, wherein: and the first electromagnetic clutch and the second electromagnetic clutch are both connected with a power supply through coils.
5. A multiple speed electrically driven transmission as defined in claim 1, wherein: and the outer ring of the one-way clutch is fixedly connected with the third gear of the input shaft, and the inner ring of the one-way clutch is fixedly connected with the input shaft.
CN201910891991.XA 2019-09-20 2019-09-20 Multi-gear electrically-driven gearbox Pending CN110566640A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910891991.XA CN110566640A (en) 2019-09-20 2019-09-20 Multi-gear electrically-driven gearbox

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910891991.XA CN110566640A (en) 2019-09-20 2019-09-20 Multi-gear electrically-driven gearbox

Publications (1)

Publication Number Publication Date
CN110566640A true CN110566640A (en) 2019-12-13

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CN201910891991.XA Pending CN110566640A (en) 2019-09-20 2019-09-20 Multi-gear electrically-driven gearbox

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111412252A (en) * 2020-01-23 2020-07-14 熵零技术逻辑工程院集团股份有限公司 Transmission mechanism

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120304790A1 (en) * 2011-06-03 2012-12-06 Oerlikon Graziano S.P.A. Electric propulsion system for vehicles
CN103072474A (en) * 2012-12-07 2013-05-01 常州万安汽车部件科技有限公司 Dual motor drive system and driving mode thereof
CN103770639A (en) * 2013-12-12 2014-05-07 袁一卿 Electric power assembly applied to purely-electric vehicle
CN104015600A (en) * 2014-06-12 2014-09-03 重庆大学 Automatic speed change mechanism for dual-motor clutch-free blade electric vehicle
CN207523427U (en) * 2017-11-17 2018-06-22 安徽纽恩卡自控科技有限公司 A kind of dual-motor drive system
JP2019056467A (en) * 2017-09-22 2019-04-11 株式会社豊田中央研究所 Power transmission device
CN110217087A (en) * 2019-06-27 2019-09-10 浙江吉利控股集团有限公司 A kind of speed changer, power assembly and vehicle

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120304790A1 (en) * 2011-06-03 2012-12-06 Oerlikon Graziano S.P.A. Electric propulsion system for vehicles
CN103072474A (en) * 2012-12-07 2013-05-01 常州万安汽车部件科技有限公司 Dual motor drive system and driving mode thereof
CN103770639A (en) * 2013-12-12 2014-05-07 袁一卿 Electric power assembly applied to purely-electric vehicle
CN104015600A (en) * 2014-06-12 2014-09-03 重庆大学 Automatic speed change mechanism for dual-motor clutch-free blade electric vehicle
JP2019056467A (en) * 2017-09-22 2019-04-11 株式会社豊田中央研究所 Power transmission device
CN207523427U (en) * 2017-11-17 2018-06-22 安徽纽恩卡自控科技有限公司 A kind of dual-motor drive system
CN110217087A (en) * 2019-06-27 2019-09-10 浙江吉利控股集团有限公司 A kind of speed changer, power assembly and vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111412252A (en) * 2020-01-23 2020-07-14 熵零技术逻辑工程院集团股份有限公司 Transmission mechanism

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Application publication date: 20191213