WO2019154402A1 - Pont électrique intégré à réducteur différentiel coaxial transversal - Google Patents

Pont électrique intégré à réducteur différentiel coaxial transversal Download PDF

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Publication number
WO2019154402A1
WO2019154402A1 PCT/CN2019/074731 CN2019074731W WO2019154402A1 WO 2019154402 A1 WO2019154402 A1 WO 2019154402A1 CN 2019074731 W CN2019074731 W CN 2019074731W WO 2019154402 A1 WO2019154402 A1 WO 2019154402A1
Authority
WO
WIPO (PCT)
Prior art keywords
planetary gear
differential
planetary
output shaft
motor
Prior art date
Application number
PCT/CN2019/074731
Other languages
English (en)
Chinese (zh)
Inventor
王传彬
王玮
王俊岭
Original Assignee
西安六环传动新能源科技有限公司
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
Priority claimed from CN201810127005.9A external-priority patent/CN108340778B/zh
Priority claimed from CN201810127018.6A external-priority patent/CN108407586B/zh
Priority claimed from CN201810126907.0A external-priority patent/CN108183580B/zh
Application filed by 西安六环传动新能源科技有限公司 filed Critical 西安六环传动新能源科技有限公司
Publication of WO2019154402A1 publication Critical patent/WO2019154402A1/fr

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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
    • B60K17/04—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
    • 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
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear

Definitions

  • the invention relates to an electric bridge for automobiles, in particular to a differential integrated electric bridge.
  • This mid-mounted electric bridge not only has a compact structure, does not require redesigning the suspension, is low in cost, and can reliably meet the turning differential demand by retaining the conventional differential.
  • the disadvantage is that the volume, weight and cost of the motor are increased, and the difficulty in support and sealing is increased.
  • the central electric bridge with dual-rotor motor can theoretically eliminate the differential and the structure is simple, the power output of the two rotors still needs to be transmitted to the driving wheel through a complicated deceleration and deceleration commutation mechanism.
  • motor control is difficult.
  • the differentials are all disposed at the low speed end, and the differential is subjected to a large force, and a large gear must be used to provide sufficient strength.
  • the invention mainly solves the problem that the differential of the electric bridge existing in the prior art occupies a large space, the differential control of the motor is difficult, and the force of the differential is large, so that technical problems such as a large gear must be adopted.
  • the utility model provides a horizontal coaxial coaxial subtraction integrated electric bridge with simple structure and compact structure, small differential space and small force.
  • a transverse coaxial subtractive integrated electric bridge comprising a body, wherein the body comprises a motor, a planetary gear reducer and a cylindrical gear difference
  • the motor is provided with an outer casing A.
  • the outer casing A is provided with a motor stator.
  • the inner side of the motor stator is provided with a motor rotor A and a motor rotor B.
  • the motor rotor A and the motor rotor B are both A permanent magnet is disposed, and the motor rotor A and the motor rotor B are respectively provided with inner holes communicating with each other, and the cylindrical gear differential is disposed in the inner hole, and the middle portion of the cylindrical gear differential is installed
  • the driven wheel A and the driven wheel B, the driven wheel A as a sun gear meshes with a plurality of differential planetary gears A to form a left planetary gear train, the driven wheel B as a sun gear and a plurality of differential planetary gears B
  • the meshing constitutes a right planetary gear train, the corresponding two differential planetary gears A and the planetary gears B constitute a differential planetary gear pair, and the inner side of the inner hole is provided with a planetary gear cavity one-to-one corresponding to the planetary gear pair , the difference between the same planetary wheel
  • the left and right sides of the planetary gear A and the differential planetary gear B are interlaced, and the left side of the differential planetary gear
  • the first output shaft and the second output shaft are respectively disposed on the left side of the driven wheel A and the right side of the driven wheel B, and the first output shaft and the second output shaft are respectively associated with the corresponding one.
  • the planetary gear reducer is connected.
  • the left-right staggered engagement between the differential planetary gear A and the differential planetary gear B means that the right half of the differential planetary gear A meshes with the left portion of the differential planetary gear B, and due to the differential
  • the planetary gear A meshes with the driven wheel A, and the planetary gear B of the reducer meshes with the driven wheel B, so that when the vehicle is traveling in a straight line, that is, when the rotational speeds of the motor rotor A and the motor rotation B are the same, the planetary gear pair is driven.
  • the driven wheel revolves, which in turn drives the rotation from the same speed.
  • the rotation speeds of the motor rotor A and the motor rotation B are different, the two pairs of differential planetary wheels interact, and the rotation is also The revolution, in turn, drives the two driven wheels to rotate at different speeds to achieve the purpose of differential speed.
  • the differential of the present invention is disposed at the high speed end of the speed reducer, so that the force is small, and a smaller and more compact gear structure can be used.
  • the planetary gear and the shaft as the sun gear from the driven wheel are parallel to each other, further The reduced space for its use, based on such structural advantages, the technical solution sets the overall structure of the differential in the inner bore of the rotor of the motor, so that the overall occupied space is small, forming an extremely compact overall. structure.
  • the planetary gear reducer includes a planetary gear, a planetary gear output shaft and a reducer internal gear, and the left end of the first output shaft and the right end of the second shaft output shaft are respectively provided with a planetary gear reducer.
  • There are several planetary gears, and a reducer carrier and an output disk are respectively mounted on two sides of the planetary output shaft, and the planetary output shaft has an interference fit with the reducer carrier and the output plate.
  • a water jacket is arranged between the motor stator and the outer body shell A, and the water jacket is fixedly connected with the motor stator.
  • the planetary gear reducer is provided with a body shell B and a body shell C on both sides thereof, and the body shell B is fixedly connected to the side end of the outer body shell A by bolts, and the body shell C is bolted with the The body shell B is fixedly connected, and the internal gear of the reducer is fixedly mounted on the two body shells C by screws.
  • the permanent magnets are disposed outside the motor rotor A and the motor rotor B, and the permanent magnets are adhesively fixed to the outside of the motor rotor A and the motor rotor B.
  • the motor rotor A and the motor rotor B are connected by screws.
  • the outer casing A is in an interference fit with the water jacket.
  • the first output shaft and the second output shaft are provided with positioning sleeves on one outer side of one of the driven wheel A and the driven wheel B.
  • the driven wheel A and the first output shaft are of a unitary structure
  • the driven wheel B and the second output shaft are of a unitary structure
  • the planetary wheel cavity is evenly distributed over the circumference of the inner bore.
  • the planetary wheel cavity is evenly distributed, so that the corresponding gear pairs are evenly distributed on the circumference of the inner hole, so that the structure is stable and the force is uniform.
  • the invention has the beneficial effects that the differential of the electric bridge existing in the prior art is occupied by a large space, the differential control of the motor is difficult, and the force of the differential is large, so that a larger
  • the technical problem of the gears and the like realizes a transverse coaxial coaxial reduction integrated electric bridge with a simple and compact structure, a small space occupied by the differential, and a small force.
  • Figure 2 is a schematic structural view of a cylindrical gear differential of the present invention
  • Figure 3 is a schematic structural view of a planetary gear reducer of the present invention.
  • Figure 4 is a partial structural schematic view of a cylindrical gear differential of the present invention.
  • Figure 5 is a schematic view showing the structure of the rotor of the motor of the present invention.
  • a body is included, wherein the body 1 includes a motor 2, a planetary gear reducer 3, and a spur gear differential 4, and the motor 2 is provided.
  • the body 1 includes a motor 2, a planetary gear reducer 3, and a spur gear differential 4, and the motor 2 is provided.
  • a planetary gear chamber 91 having a one-to-one correspondence with the planetary wheel pairs, a differential in the same planetary gear pair
  • the left and right sides of the planetary gear A and the differential planetary gear B are interlaced, and the left side of the differential planetary gear A 10 and the right side of the differential planetary gear B 11 pass through the sleeve 22 and the planet, respectively.
  • the ends of the wheel chamber are rotatably connected, and the left side of the driven wheel A and the right side of the driven wheel B are respectively provided with a first output shaft and a second output shaft, and the first output shaft and the second output shaft respectively correspond to one
  • the planetary gear reducer is connected.
  • the planetary gear reducer 3 is provided with two, and the two planetary gear reducers 3 respectively include a planetary gear, a planetary output shaft 17 and a reducer internal gear 16, and the left end of the first output shaft And an input gear of the planetary gear reducer respectively disposed at a right end of the second shaft output shaft, the input gear meshing with a corresponding one side of the planetary gear, the planetary gear meshing with the internal gear 16 of the reducer, the planet
  • the wheel output shaft 17 is coupled to the planetary wheel via a needle roller 18, and the planetary gears are provided in a plurality of times.
  • the planetary gear output shaft 17 is respectively mounted with a reducer carrier 14 and an output disk 15 on both sides thereof.
  • the wheel output shaft 17 is in interference fit with the reducer planet carrier 14 and the output disk 15.
  • a water jacket 7 is disposed between the motor stator 6 and the outer casing A5, and the water jacket 7 and the motor stator 6 are fixedly connected by screws.
  • the planetary gear reducer 3 is provided with a body shell B12 and a body shell C13 on both sides thereof, and the body shell B12 is fixedly connected to the side end of the outer body shell A5 by bolts, and the body shell C13 passes through the bolt and the The body casing B12 is fixedly coupled, and the internal gear 16 of the reducer is fixedly mounted on the two body casings C13 by screws.
  • the permanent magnet 19 is disposed outside the motor rotor A8 and the motor rotor B9, and the permanent magnet 19 is adhesively fixed to the outside of the motor rotor A8 and the motor rotor B9.
  • the motor rotor A8 and the motor rotor B9 are connected by screws.
  • the outer casing A5 and the water jacket 7 are interference fit.
  • first output shaft and the second output shaft are provided with positioning sleeves on one outer side of one of the driven wheel A20 and the driven wheel B21.
  • the driven wheel A and the first output shaft are of a unitary structure
  • the driven wheel B and the second output shaft are of a unitary structure
  • a transverse coaxial reduction integrated electric bridge when in use, start the motor 2, the motor rotor A8 and the motor rotor B9 inside the motor 2 rotate, the motor rotor A8 and the motor rotor B9 rotate to drive the cylindrical gear differential 4
  • the inner differential planetary gear A10 and the differential planetary gear B11 revolve, the differential planetary gear A10 and the differential planetary gear B11 revolve to drive the driven wheel A20 and the driven wheel B21 to rotate, and the driven wheel A20 and the driven wheel B21 rotate.
  • the reducer planetary gear revolves through the internal gear 16 of the reducer, and then the output wheel 15 rotates and outputs through the planetary output shaft 17, and when the vehicle turns, the differential planetary gear A10 and the differential planetary gear B11 will revolve.
  • the rotation speed is such that the output speeds of the driven wheel A20 and the second driven wheel B21 are different.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Retarders (AREA)

Abstract

La présente invention concerne un pont électrique intégré à réducteur différentiel coaxial transversal, comprenant un corps (1). Le corps (1) comprend un moteur (2), un réducteur de vitesse à engrenage planétaire (3) et un différentiel d'engrenage cylindrique (4); le moteur (2) est pourvu d'un boîtier externe A(5); le boîtier externe A(5) est pourvu d'un stator de moteur (6) à l'intérieur de celui-ci; le stator de moteur (6) est disposé sur le côté interne avec un rotor de moteur A(8) et un rotor de moteur B(9); à la fois le rotor de moteur A(8) et le rotor de moteur B(9) sont pourvus d'un aimant permanent (19); le différentiel d'engrenage cylindrique (4) est installé à l'intérieur du moteur (2); le différentiel d'engrenage cylindrique (4) est monté dans la partie intermédiaire avec une roue entraînée A(20) et une roue entraînée B(21). Le différentiel d'engrenage cylindrique est disposé à l'intérieur du rotor d'un moteur synchrone à aimant permanent pour intégrer fortement le moteur, le différentiel et le réducteur sur un arbre, de telle sorte que le volume d'une unité de transmission d'une automobile électrique est réduit et la densité de puissance est améliorée; et le différentiel est à l'extrémité haute vitesse du réducteur et est moins sollicité.
PCT/CN2019/074731 2018-02-08 2019-02-07 Pont électrique intégré à réducteur différentiel coaxial transversal WO2019154402A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
CN201810127005.9A CN108340778B (zh) 2018-02-08 2018-02-08 一种圆柱齿轮差速器
CN201810127018.6 2018-02-08
CN201810127018.6A CN108407586B (zh) 2018-02-08 2018-02-08 一种横置同轴差减一体电动桥
CN201810127005.9 2018-02-08
CN201810126907.0 2018-02-08
CN201810126907.0A CN108183580B (zh) 2018-02-08 2018-02-08 一种内置圆柱齿轮差速器的永磁同步电机

Publications (1)

Publication Number Publication Date
WO2019154402A1 true WO2019154402A1 (fr) 2019-08-15

Family

ID=67548797

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/074731 WO2019154402A1 (fr) 2018-02-08 2019-02-07 Pont électrique intégré à réducteur différentiel coaxial transversal

Country Status (1)

Country Link
WO (1) WO2019154402A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023016947A1 (fr) * 2021-08-12 2023-02-16 Mercedes-Benz Group AG Dispositif d'entraînement pour l'entrainement électrique d'un véhicule à moteur, plus particulièrement d'un véhicule à passagers

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6378638B1 (en) * 2001-03-14 2002-04-30 New Venture Gear, Inc. Drive axle for hybrid vehicle
CN205905749U (zh) * 2016-07-04 2017-01-25 杨勇 一种交错设置电机的多电机电动车
CN107355515A (zh) * 2017-09-05 2017-11-17 上海竟旭机械科技有限公司 差速行星减速机
CN108183580A (zh) * 2018-02-08 2018-06-19 西安六环传动新能源科技有限公司 一种内置圆柱齿轮差速器的永磁同步电机
CN108340778A (zh) * 2018-02-08 2018-07-31 西安六环传动新能源科技有限公司 一种圆柱齿轮差速器
CN108407586A (zh) * 2018-02-08 2018-08-17 西安六环传动新能源科技有限公司 一种横置同轴差减一体电动桥

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6378638B1 (en) * 2001-03-14 2002-04-30 New Venture Gear, Inc. Drive axle for hybrid vehicle
CN205905749U (zh) * 2016-07-04 2017-01-25 杨勇 一种交错设置电机的多电机电动车
CN107355515A (zh) * 2017-09-05 2017-11-17 上海竟旭机械科技有限公司 差速行星减速机
CN108183580A (zh) * 2018-02-08 2018-06-19 西安六环传动新能源科技有限公司 一种内置圆柱齿轮差速器的永磁同步电机
CN108340778A (zh) * 2018-02-08 2018-07-31 西安六环传动新能源科技有限公司 一种圆柱齿轮差速器
CN108407586A (zh) * 2018-02-08 2018-08-17 西安六环传动新能源科技有限公司 一种横置同轴差减一体电动桥

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023016947A1 (fr) * 2021-08-12 2023-02-16 Mercedes-Benz Group AG Dispositif d'entraînement pour l'entrainement électrique d'un véhicule à moteur, plus particulièrement d'un véhicule à passagers

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