WO2019154402A1 - 一种横置同轴差减一体电动桥 - Google Patents

一种横置同轴差减一体电动桥 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
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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)
French (fr)
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.)
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Priority claimed from CN201810126907.0A external-priority patent/CN108183580B/zh
Priority claimed from CN201810127018.6A external-priority patent/CN108407586B/zh
Priority claimed from CN201810127005.9A external-priority patent/CN108340778B/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/zh

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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.

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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)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Retarders (AREA)

Abstract

一种横置同轴差减一体电动桥，包括本体(1)，本体(1)包括电机(2)、行星齿轮减速器(3)和圆柱齿轮差速器(4)，所述电机(2)设有外壳体A(5)，所述外壳体A(5)内设有电机定子(6)，所述电机定子(6)内侧设有电机转子A(8)和电机转子B(9)，所述电机转子A(8)与所述电机转子B(9)均设有永磁体(19)，圆柱齿轮差速器(4)安装在电机(2)的内部，圆柱齿轮差速器(4)中部安装有从动轮A(20)和从动轮B(21)。通过圆柱齿轮差速器内置于永磁同步电机的转子之中，将电机、差速器、减速器高度集成在一根轴上，减少了电动汽车传动环节的体积，提高了功率密度，同时差速器在减速器的高速端，受力较小。

Description

一种横置同轴差减一体电动桥 技术领域
本发明涉及一种汽车电动桥，特别涉及一种差减一体电动桥。
 
 背景技术
传统的电动汽车多采用电机-减速器-锥齿轮差速器的方案，电机和差速器不在同一轴线上，占用空间较大，电机和和差速器分别占用独立的空间的，造成有限空间的浪费。虽然目前，现有技术中有一种中置电动机电动桥 ( 即“中置电动桥”) 大多采用中空电动机，少数采用免差速器的双转子电动机。采用中空电动机的中置电动桥将电动机、行星齿轮减速装置和差速器排列于同一轴线，一根半轴将动力直接传至所在侧驱动轮，而另一根半轴则穿过中空 电动机将动力传至另一侧驱动轮。这种中置电动桥不仅结构紧凑、不需要重新设计悬架、成本低，而且因保留了传统差速器，能够可靠地满足转弯差速需求。其缺点是电动机空心后体积、重量和成本都有所增加，且支承和密封难度增大。采用双转子电动机的中置电动桥虽然理论上可以省去差速器、结构简单了，但两个转子输出的动力仍然需要经过复杂的减速和减速换向机构才能传至驱动轮。而且，为了保证两侧驱动轮转矩相同且能实现转弯差速，电动机控制很困难。
而且，现有技术中差速器均设于在低速端，差速器的受力较大，必须才用较大的齿轮才能提供足够的强度。
 
 技术问题
本发明主要是解决现有技术所存在的电动桥的差速器所占空间较大，电动机差速控制困难，差速器的受力较大，使得必须采用较大的齿轮等的技术问题，提供一种结构简单、紧凑，差速器占用空间小、受力小的横置同轴差减一体电动桥。
 技术解决方案
本发明的上述技术问题主要是通过下述技术方案得以解决的：一种横置同轴差减一体电动桥，包括本体，其特征在于：所述本体包括电机、行星齿轮减速器和圆柱齿轮差速器，所述电机设有外壳体A，所述外壳体A内设有电机定子，所述电机定子内侧设有电机转子A和电机转子B，所述电机转子A与所述电机转子B均设有永磁体，所述的电机转子A与所述电机转子B分别设有相互连通的内孔，该内孔内设有所述圆柱齿轮差速器，所述圆柱齿轮差速器中部安装有从动轮A和 从动轮B，所述从动轮A作为太阳轮与若干个差速器行星轮A相啮合构成左行星轮系，所述从动轮B作为太阳轮与若干个差速器行星轮B相啮合构成右行星轮系，对应的两个差速器行星轮A和行星轮B构成差速器行星轮对，所述的内孔的侧面设有与行星轮对一一对应的行星轮腔，同一个行星轮对内的差速器行星轮A和差速器行星轮B之间左右交错啮合，所述差速器行星轮A的左侧和所述差速器行星轮B的右侧分别通过轴套与所述行星轮腔的端部转动连接，所述从动轮A的左侧与从动轮B的右侧分别设有第一输出轴和第二输出轴，第一输出轴、第二输出轴分别与一个与其对应的所述的行星轮减速器相连。 差速器行星轮A和差速器行星轮B之间左右交错啮合是指，差速器行星轮A的右半部分与差速器行星轮的B的左部分部相啮合，而由于差速器行星轮A与从动轮A相啮合，减速器行星轮B与从动轮B相啮合，使得汽车在直线行走时，即电机转子A和电机转动B转动速度相同的情况下，带动行星轮对沿从动轮公转，进而带动从同速动轮转动；而当转弯时，即电机转子A和电机转动B转动速度不相同的情况，由两个成对的差速器行星轮相互作用，其既自转也公转，进而带动两个从动轮以不同的速度转动，达到差速的目的。
本发明的差速器设于减速器的高速端，使得其受力较小，可以使用较小、较紧凑的齿轮结构，行星齿轮与作为从为从动轮的太阳轮的轴均相互平行，进一步减小的其所点用的空间，基于这样的结构优势，本技术方案将差速器的整体结构设置于电机转子的内孔内，使得其总体的占用空间较小，形成一个极为紧凑的整体结构。
作为优选，所述行星齿轮减速器分别包含有行星轮、行星轮输出轴和减速器内齿轮，所述的第一输出轴的左端和第二轴出轴的右端分别设有行星齿轮减速器的输入齿轮，该输入齿轮与对应的所述的行星轮一侧相啮合，所述行星轮与减速器内齿轮啮合，所述行星轮输出轴通过滚针与所述行星轮配合连接，且所述行星轮一周有数个，所述行星轮输出轴两侧分别安装有减速器行星架和输出盘，所述行星轮输出轴与所述减速器行星架和所述输出盘过盈配合。
作为优选，所述电机定子与所述外体壳A之间设有水套，所述水套与所述电机定子之间固定连接。
作为优选，所述行星齿轮减速器两侧设有体壳B和体壳C，所述体壳B通过螺栓与所述外体壳A侧端固定连接，所述体壳C通过螺栓与所述体壳B固定连接，所述减速器内齿轮通 过螺钉固定安装在两个所述体壳C上。
作为优选，所述的永磁体设于电机转子A和电机转子B的外侧，且永磁体粘合固定在电机转子A和电机转子B的外侧。
作为优选，所述电机转子A与所述电机转子B之间通过螺钉连接。
作为优选，所述外壳体A 与所述水套过盈配合。
作为优选，所述第一输出轴和第二输出轴上位于从动轮A和从动轮B的一端外侧设有定位轴套。
作为优选，所述从动轮A与所述的第一输出轴为一体式结构，所述从动轮B与所述的第二输出轴为一体式结构。
作为优选，所述的行星轮腔均匀分布于所述的内孔的圆周上。行星轮腔均匀分布，使得其对应的齿轮对也均匀的分布于内孔的圆周上，使得其结构稳定，受力均匀。
 
 有益效果
本发明的带来的有益效果是，解决了现有技术所存在的电动桥的差速器所占空间较大，电动机差速控制困难，差速器的受力较大，使得必须采用较大的齿轮等的技术问题，实现了一种结构简单、紧凑，差速器占用空间小、受力小的横置同轴差减一体电动桥。
 附图说明
附图1是本发明的一种结构示意图；
附图2是本发明的圆柱齿轮差速器一种结构示意图；
附图3是本发明的行星齿轮减速器的一种结构示意图；
附图4是本发明的圆柱齿轮差速器的局部一种结构示意图；
附图5是本发明的电机转子的结构示意图。
 
图中；1-本体、2-电机、3-行星齿轮减速器、4-圆柱齿轮差速器、5-外体壳A、6-电机定子、7-水套、8-电机转子A、9-电机转子B、10-差速器行星轮A、11-差速器行星轮B、12-体壳B、13-体壳C、14-减速器行星架、15-输出盘、16-减速器内齿轮、17-行星轮输出轴、18-滚针、19-永磁体、20-从动轮A、21-从动轮B、22-轴套，91-行星轮腔。
 
 本发明的实施方式
下面通过实施例，并结合附图，对本发明的技术方案作进一步具体的说明。
实施例：
如图1-3所示，本具体实施方式采用以下技术方案：包括本体，其特征在于：所述本体1包括电机2、行星齿轮减速器3和圆柱齿轮差速器4，所述电机2设有外壳体A 5，所述外壳体A 5内设有电机定子6，所述电机定子6内侧设有电机转子A 8和电机转子B 9，所述电机转子A 8与所述电机转子B 9均设有永磁体19，所述的电机转子A 8与所述电机转子B 9分别设有相互连通的内孔，该内孔内设有所述圆柱齿轮差速器4，所述圆柱齿轮差速器4中部安装有从动轮A 20和从动轮B 21，所述从动轮A 20作为太阳轮与若干个差速器行星轮A 10相啮合构成左行星轮系，所述从动轮B 21作为太阳轮与若干个差速器行星轮B 11相啮合构成右行星轮系，对应的两个差速器行星轮A和行星轮B构成差速器行星轮对，所述的内孔的侧面均匀分布有与行星轮对一一对应的行星轮腔91，同一个行星轮对内的差速器行星轮A和差速器行星轮B之间左右交错啮合，所述差速器行星轮A 10的左侧和所述差速器行星轮B 11的右侧分别通过轴套22与所述行星轮腔的端部转动连接，所述从动轮A的左侧与从动轮B的右侧分别设有第一输出轴和第二输出轴，第一输出轴、第二输出轴分别与一个与其对应的所述的行星轮减速器相连。
其中，所述行星齿轮减速器3设有两个，两个所述行星齿轮减速器3分别包含有行星轮、行星轮输出轴17和减速器内齿轮16，所述的第一输出轴的左端和第二轴出轴的右端分别设有行星齿轮减速器的输入齿轮，该输入齿轮与对应的所述的行星轮一侧相啮合，所述行星轮与减速器内齿轮16啮合，所述行星轮输出轴17通过滚针18与所述行星轮配合连接，且所述行星轮一周有数个，所述行星轮输出轴17两侧分别安装有减速器行星架14和输出盘15，所述行星轮输出轴17与所述减速器行星架14和所述输出盘15过盈配合。
其中，所述电机定子6与所述外体壳A5之间设有水套7，所述水套7与所述电机定子6之间通过螺丝固定连接。
其中，所述行星齿轮减速器3两侧设有体壳B12和体壳C13，所述体壳B12通过螺栓与所述外体壳A5侧端固定连接，所述体壳C13通过螺栓与所述体壳B12固定连接，所述减速器内齿轮16通过螺钉固定安装在两个所述体壳C13上。
其中，在于所述的永磁体19设于电机转子A8和电机转子B9的外侧，且永磁体19粘合固定在电机转子A8和电机转子B9的外侧。
其中，所述电机转子A8与所述电机转子B9之间通过螺钉连接。
其中，所述外壳体A5与所述水套7过盈配合。
其中，所述第一输出轴和第二输出轴上位于从动轮A20和从动轮B21的一端外侧设有定位轴套。
其中，所述从动轮A与所述的第一输出轴为一体式结构，所述从动轮B与所述的第二输出轴为一体式结构。
具体的：一种横置同轴差减一体电动桥，使用时，启动电机2，电机2内部的电机转子A8和电机转子B9自转，电机转子A8和电机转子B9转动带动圆柱齿轮差速器4内部的差速器行星轮A10和差速器行星轮B11公转，差速器行星轮A10和差速器行星轮B11公转带动从动轮A20和从动轮B21自转，从动轮A20和从动轮B21自转的同时通过减速器内齿轮16带动减速器行星轮公转，进而通过行星轮输出轴17带动输出盘15自转并输出,当车辆转弯时，差速器行星轮A10和差速器行星轮B11会在公转的同时自转，使得从动轮A20和第二从动轮B21输出的转速不同。以上显示和描述了本发明的基本原理和主要特征和本发明的优点，本行业的技术
人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明精神和范围的前提下，本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内，本发明要求保护范围由所附的权利要求书及其等效物界定。

Claims (11)

  1. 一种横置同轴差减一体电动桥，包括本体，其特征在于：所述本体（1）包括电机（2）、行星齿轮减速器（3）和圆柱齿轮差速器（4），所述电机（2）设有外壳体A（5），所述外壳体A（5）内设有电机定子（6），所述电机定子（6）内侧设有电机转子A（8）和电机转子B（9），所述电机转子A（8）与所述电机转子B（9）均设有永磁体（19），所述的电机转子A（8）与所述电机转子B（9）分别设有相互连通的内孔，该内孔内设有所述圆柱齿轮差速器（4），所述圆柱齿轮差速器（4）中部安装有从动轮A（20）和 从动轮B（21），所述从动轮A（20）作为太阳轮与若干个差速器行星轮A（10）相啮合构成左行星轮系，所述从动轮B（21）作为太阳轮与若干个差速器行星轮B（11）相啮合构成右行星轮系，对应的两个差速器行星轮A和行星轮B构成差速器行星轮对，所述的内孔的侧面设有与行星轮对一一对应的行星轮腔，同一个行星轮对内的差速器行星轮A和差速器行星轮B之间左右交错啮合，所述差速器行星轮A（10）的左侧和所述差速器行星轮B（11）的右侧分别通过轴套（22）与所述行星轮腔的端部转动连接，所述从动轮A的左侧与从动轮B的右侧分别设有第一输出轴和第二输出轴，第一输出轴、第二输出轴分别与一个与其对应的所述的行星轮减速器相连。
  2. 根据权利要求1所述的一种横置同轴差减一体电动桥，其特征在于：所述行星齿轮减速器（3）分别包含有行星轮、行星轮输出轴（17）和减速器内齿轮（16），所述的第一输出轴的左端和第二轴出轴的右端分别设有行星齿轮减速器的输入齿轮，该输入齿轮与对应的所述的行星轮一侧相啮合，所述行星轮与减速器内齿轮（16）啮合，所述行星轮输出轴（17）通过滚针（18）与所述行星轮配合连接，且所述行星轮一周有数个，所述行星轮输出轴（17）两侧分别安装有减速器行星架（14） 和输出盘（15），所述行星轮输出轴（17）与所述减速器行星架（14）和所述输出盘（15）过盈配合。
  3. 根据权利要求1所述的一种横置同轴差减一体电动桥，其特征在于：所述电机定子 （6）与所述外体壳A（5）之间设有水套（7），所述水套（7）与所述电机定子（6）之间固定连接。
  4. 根据权利要求1或2或3所述的一种横置同轴差减一体电动桥，其特征在于：所述行星齿轮减速器（3）两侧设有体壳B（12）和体壳C（13），所述体壳B（12）通过螺栓与所述外体壳A（5）侧端 固定连接，所述体壳C（13）通过螺栓与所述体壳B（12）固定连接，所述减速器内齿轮（16）通 过螺钉固定安装在两个所述体壳C（13）上。
  5. 根据权利要求1或2或3所述的一种横置同轴差减一体电动桥，其特征在于所述的永磁体（19）设于电机转子A（8）和电机转子B（9）的外侧，且永磁体（19）粘合固定在电机转子A（8）和电机转子B（9）的外侧。
  6. 根据权利要求1或2或3所述的一种横置同轴差减一体电动桥，其特征在于：所述电机转子A （8）与所述电机转子B（9）之间通过螺钉连接。
  7. 根据权利要求1或2或3所述的一种横置同轴差减一体电动桥，其特征在于：所述外壳体A（5） 与所述水套（7）过盈配合。
  8. 根据权利要求1或2或3所述的一种横置同轴差减一体电动桥，其特征在于：所述第一输出轴和第二输出轴上位于从动轮A（20）和从动轮B（21）的一端外侧设有定位轴套。
  9. 根据权利要求1或2或3所述的一种横置同轴差减一体电动桥，其特征在于：所述从动轮A与所述的第一输出轴为一体式结构，所述从动轮B与所述的第二输出轴为一体式结构。
  10. 根据权利要求1或2或3所述的一种横置同轴差减一体电动桥，其特征在于所述的行星轮腔均匀分布于所述的内孔的圆周上。
  11. 根据权利要求4所述的一种横置同轴差减一体电动桥，其特征在于所述的行星轮腔均匀分布于所述的内孔的圆周上。
PCT/CN2019/074731 2018-02-08 2019-02-07 一种横置同轴差减一体电动桥 WO2019154402A1 (zh)

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