CN106945515B - Power device of pure electric vehicle - Google Patents

Power device of pure electric vehicle Download PDF

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Publication number
CN106945515B
CN106945515B CN201710245387.0A CN201710245387A CN106945515B CN 106945515 B CN106945515 B CN 106945515B CN 201710245387 A CN201710245387 A CN 201710245387A CN 106945515 B CN106945515 B CN 106945515B
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China
Prior art keywords
gear
driving
motor
driven gear
clutch
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Application number
CN201710245387.0A
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Chinese (zh)
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CN106945515A (en
Inventor
毛江
吴守国
刘巍
秦川
仇勇
张代明
胡芳
邬学冬
张乃夫
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Chongqing Tsingshan Industrial Co Ltd
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Chongqing Tsingshan Industrial Co Ltd
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Priority to CN201710245387.0A priority Critical patent/CN106945515B/en
Publication of CN106945515A publication Critical patent/CN106945515A/en
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Publication of CN106945515B publication Critical patent/CN106945515B/en
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    • 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
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
    • F16H37/04—Combinations of toothed gearings only
    • F16H37/042—Combinations of toothed gearings only change gear transmissions in group arrangement
    • F16H37/046—Combinations of toothed gearings only change gear transmissions in group arrangement with an additional planetary gear train, e.g. creep gear, overdrive
    • 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
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/0021—Transmissions for multiple ratios specially adapted for electric vehicles
    • 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
    • F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
    • F16H2200/0034—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising two forward speeds

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Structure Of Transmissions (AREA)

Abstract

The invention provides a pure electric automobile power device with higher working efficiency, which is characterized in that: the first driving gear and the second driving gear are arranged in parallel left and right, the first driving gear is fixedly connected with a motor shaft of the driving motor, the second driving gear is sleeved on the motor shaft of the driving motor in an empty mode, the first driven gear and the second driven gear are arranged in parallel left and right, the first driven gear is fixedly connected with the middle shaft, the second driven gear is sleeved on the middle shaft in an empty mode, the first driven gear and the second driven gear are respectively meshed with the first driving gear and the second driving gear, the middle shaft is parallel to the motor shaft of the driving motor at intervals, the right end of the clutch penetrates through the outer ring to be fixedly connected with the sun gear of the planet row, the clutch is positioned on the right side of the second driving gear, the inner drum and the outer drum of the clutch are respectively connected with the second driving gear and the motor shaft of the driving motor or the inner drum and the outer drum of the clutch are respectively connected with the motor shaft of the driving motor and the second driving gear, the left end of the outer ring is fixedly connected with the second driven gear, the right end of the outer ring is fixedly connected with the gear ring of the planet row, and the middle of the outer ring.

Description

Power device of pure electric vehicle
Technical Field
The invention relates to a pure electric vehicle, in particular to a power device of the pure electric vehicle.
Background
At present, a common pure electric vehicle power device comprises a clutch, a brake, a planetary gear two-gear transmission and a driving motor comprising a motor shaft, wherein the motor shaft of the driving motor is directly connected and coaxial with a sun gear of a planetary gear; the motor shaft of the driving motor is directly connected with the sun gear of the planet row, so that a larger transmission ratio cannot be realized, and particularly, the design range of the transmission ratio of the second gear is limited, so that the working efficiency of the driving motor is lower, and the working efficiency of the whole power device is lower; in addition, a motor shaft of the driving motor is coaxial with the sun gear of the planet row, so that the whole axial length of the driving motor is longer, the driving motor can only be used on a whole vehicle with a larger radial space and cannot be used on the whole vehicle with a smaller axial space, and the applicability is poor.
Disclosure of Invention
The invention aims to provide a pure electric automobile power device with high working efficiency and good adaptability.
In order to solve the technical problem, the technical scheme of the invention is as follows;
the utility model provides a pure electric vehicles power device, includes driving motor, outer lane, the output shaft that contains the motor shaft to and contain two speed change gear that clutch, stopper and planet were arranged, two speed change gear's planet row contains the sun gear that is located within the planet carrier, rotationally installs the planet wheel on the planet carrier, installs the ring gear outside the planet carrier, the right-hand member and the output shaft of the planet carrier of planet row connect firmly characterized by: the clutch is positioned on the right side of the second driving gear, an inner drum and an outer drum of the clutch are respectively connected with the motor shaft of the second driving gear and the motor shaft of the driving motor or respectively connected with the motor shaft of the driving motor and the second driving gear, the left end of the outer ring is fixedly connected with the second driven gear, the right end of the outer ring is fixedly connected with the gear ring of the planet row, and the middle part of the outer ring is connected with the brake. After the structure is adopted, the first driving gear, the first driven gear, the second driving gear and the second driven gear are additionally arranged between the driving motor and the planet row, so that the transmission ratio of the two-gear transmission is larger, particularly the transmission ratio of the two gears is not limited, the working efficiency of the driving motor is higher, and the working efficiency of the whole power device is higher; in addition, the intermediate shaft and the motor shaft of the driving motor are parallel to each other at intervals, and the right end of the intermediate shaft penetrates through the outer ring to be fixedly connected with the sun gear of the planet row, namely, the motor shaft of the driving motor is not coaxial with the planet row, so that the device has smaller axial size, can be used for not only a whole vehicle with larger radial space but also a whole vehicle with smaller axial space, and has better applicability.
Preferably, the clutch is a multiple friction plate clutch. The invention can better buffer the impact of the whole vehicle and smoothly shift gears.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1, the pure electric vehicle power device of the invention comprises a driving motor 1 including a motor shaft 2, an outer ring 8, an output shaft 15, and a two-gear transmission including a clutch 9, a brake 10 and a planet row, wherein the planet row of the two-gear transmission includes a sun gear 11 located inside a planet carrier 13, a planet gear 12 rotatably mounted on the planet carrier 13, and a gear ring 14 mounted outside the planet carrier 13, and the right end of the planet carrier 13 of the planet row is fixedly connected with the output shaft 15. Referring to fig. 1, the present invention further includes an intermediate shaft 7, a first driving gear 3, a first driven gear 4, a second driving gear 5, and a second driven gear 6, wherein the first driving gear 3 and the second driving gear 5 are arranged side by side in a left-right direction, the first driving gear 3 is fixedly connected to a motor shaft 2 of a driving motor 1, the second driving gear 5 is freely sleeved on the motor shaft 2 of the driving motor 1, the first driven gear 4 and the second driven gear 6 are arranged side by side in a left-right direction, the first driven gear 4 is fixedly connected to the intermediate shaft 7, the second driven gear 6 is freely sleeved on the intermediate shaft 7, the first driven gear 4 and the second driven gear 6 are respectively engaged with the first driving gear 3 and the second driving gear 5, the intermediate shaft 7 is parallel to the motor shaft 2 of the driving motor 1 at an interval, the right end of the intermediate shaft passes through an outer ring 8 to be fixedly connected to a sun gear 11 of a planet row, and the clutch 9 is located, the inner drum and the outer drum are respectively connected with the second driving gear 5 and the motor shaft 2 of the driving motor 1 or the inner drum and the outer drum are respectively connected with the motor shaft 2 of the driving motor 1 and the second driving gear 5, the left end of the outer ring 8 is fixedly connected with the second driven gear 6, the right end of the outer ring is fixedly connected with the gear ring 14 of the planet row, and the middle part of the outer ring is connected with the brake 10.
The clutch 9 is a multi-plate friction clutch.
The working principle of the invention is as follows;
first gear; the driving motor 1 rotates forwards, the clutch 9 of the two-gear transmission is released, and the brake 10 brakes. The drive motor 1 transmits power to the first drive gear 3, the first driven gear 4, the intermediate shaft 7, and the sun gear 11 of the planetary gear set of the two-speed transmission in this order through the motor shaft 2, and the planetary gear set transmits power to the output shaft 15 through the carrier 13 thereof when the planetary gear set and the ring gear 14 are braked by the brake 10.
Second grade; the motor 1 is driven to rotate forward, the clutch 9 of the two-gear transmission is engaged, and the brake 10 is released. The driving motor 1 transmits power to the motor shaft 2, and under the condition that the clutch 9 is combined, the power of the motor shaft 2 of the driving motor 1 is transmitted through two power lines, wherein in the first step, the motor shaft 2 of the driving motor 1 sequentially transmits the power to the first driving gear 3, the first driven gear 4, the intermediate shaft 7 and the sun gear 11 of the planetary row of the two-gear transmission; secondly, a motor shaft 2 of the driving motor 1 transmits power to a clutch 9, a second driving gear 5, a second driven gear 6, an outer ring 8 and a gear ring 14 of a planet row of the two-gear transmission in sequence, the two powers are coupled on a planet carrier 13 of the planet row, and finally the planet carrier 13 of the planet row transmits the power to an output shaft 15.
Reversing gear: the driving motor 1 rotates reversely, the clutch 9 of the two-gear transmission is released, and the brake 10 brakes. The driving motor 1 transmits power to the first driving gear 3, the first driven gear 4, the intermediate shaft 7 and the sun gear 11 of the planetary row of the two-speed transmission in sequence through the motor shaft 2, and the planetary row transmits power to the output shaft 15 through the planet carrier 13 under the condition that the ring gear 14 of the planetary row is braked by the brake 10.
While the preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.

Claims (2)

1. The utility model provides a pure electric vehicles power device, includes driving motor (1), outer lane (8), output shaft (15) that contain motor shaft (2) to and contain two grades of derailleurs of clutch (9), stopper (10) and planet row, two grades of planet rows of derailleur contain sun gear (11) that are located planet carrier (13), rotationally install planet wheel (12) on planet carrier (13), install ring gear (14) outside planet carrier (13), the right-hand member and output shaft (15) of planet carrier (13) of planet row are linked firmly characterized by: also comprises an intermediate shaft (7), a first driving gear (3), a first driven gear (4), a second driving gear (5) and a second driven gear (6),
the first driving gear (3) and the second driving gear (5) are arranged in parallel left and right, the first driving gear (3) is fixedly connected with a motor shaft (2) of the driving motor (1), the second driving gear (5) is sleeved on the motor shaft (2) of the driving motor (1) in an empty way,
the first driven gear (4) and the second driven gear (6) are arranged in parallel left and right, the first driven gear (4) is fixedly connected with the intermediate shaft (7), the second driven gear (6) is sleeved on the intermediate shaft (7) in an empty way, the first driven gear (4) and the second driven gear (6) are respectively meshed with the first driving gear (3) and the second driving gear (5),
the intermediate shaft (7) is parallel to the motor shaft (2) of the driving motor (1) at intervals, the right end of the intermediate shaft penetrates through the outer ring (8) and is fixedly connected with the sun gear (11) of the planet row,
the clutch (9) is positioned at the right side of the second driving gear (5), the inner drum and the outer drum of the clutch are respectively connected with the second driving gear (5) and the motor shaft (2) of the driving motor (1) or the inner drum and the outer drum of the clutch are respectively connected with the motor shaft (2) of the driving motor (1) and the second driving gear (5),
the left end of the outer ring (8) is fixedly connected with the second driven gear (6), the right end of the outer ring is fixedly connected with a gear ring (14) of the planet row, and the middle of the outer ring is connected with a brake (10).
2. The two-speed pure electric vehicle transmission according to claim 1, characterized in that: the clutch (9) is a multi-friction plate clutch.
CN201710245387.0A 2017-04-14 2017-04-14 Power device of pure electric vehicle Active CN106945515B (en)

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Application Number Priority Date Filing Date Title
CN201710245387.0A CN106945515B (en) 2017-04-14 2017-04-14 Power device of pure electric vehicle

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Application Number Priority Date Filing Date Title
CN201710245387.0A CN106945515B (en) 2017-04-14 2017-04-14 Power device of pure electric vehicle

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CN106945515B true CN106945515B (en) 2020-12-01

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108591386A (en) * 2018-06-04 2018-09-28 株洲欧格瑞传动股份有限公司 Two grades of speed change gears of electric vehicle and its bi-motor Driven by Coaxial
CN212685116U (en) 2018-09-25 2021-03-12 德纳汽车系统集团有限责任公司 Electric drive axle
CN110017358A (en) * 2019-04-23 2019-07-16 合肥工业大学 A kind of three fast electric automobile gear devices of exportable large transmission ratio

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005048938A1 (en) * 2005-10-13 2007-04-19 Volkswagen Ag Dual clutch transmission for a motor vehicle, in particular with a hybrid drive or method for controlling this dual clutch transmission
CN104534037B (en) * 2014-12-26 2017-02-22 北京航空航天大学 Two-gear automatic transmission for pure electric vehicle
CN105570392B (en) * 2016-03-25 2018-06-19 重庆青山工业有限责任公司 A kind of pure electric vehicle two speed transmission
CN105972165A (en) * 2016-07-29 2016-09-28 重庆青山工业有限责任公司 Double-clutch planet row type blade electric vehicle transmission
CN106122392B (en) * 2016-08-26 2019-04-05 凯博易控驱动(苏州)股份有限公司 Four-speed gear shift device integrated system
CN206926513U (en) * 2017-04-14 2018-01-26 重庆青山工业有限责任公司 A kind of pure electric automobile power device

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