WO2018103249A1 - 一种扭矩传递控制装置 - Google Patents

一种扭矩传递控制装置 Download PDF

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Publication number
WO2018103249A1
WO2018103249A1 PCT/CN2017/080994 CN2017080994W WO2018103249A1 WO 2018103249 A1 WO2018103249 A1 WO 2018103249A1 CN 2017080994 W CN2017080994 W CN 2017080994W WO 2018103249 A1 WO2018103249 A1 WO 2018103249A1
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Prior art keywords
spiral curved
spiral
brake
guide rail
brake disc
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PCT/CN2017/080994
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English (en)
French (fr)
Inventor
张文明
杨珏
杨耀东
赵鑫鑫
谭森起
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北京科技大学
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Publication of WO2018103249A1 publication Critical patent/WO2018103249A1/zh

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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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
    • F16D23/12—Mechanical clutch-actuating mechanisms arranged outside the clutch as such
    • 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
    • F16D28/00—Electrically-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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D47/00—Systems of clutches, or clutches and couplings, comprising devices of types grouped under at least two of the preceding guide headings
    • 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
    • F16D63/00—Brakes not otherwise provided for; Brakes combining more than one of the types of groups F16D49/00 - F16D61/00
    • 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
    • F16D65/00—Parts or details
    • F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
    • F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
    • 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
    • F16D2121/00—Type of actuator operation force
    • F16D2121/14—Mechanical
    • 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
    • F16D2121/00—Type of actuator operation force
    • F16D2121/18—Electric or magnetic
    • F16D2121/24—Electric or magnetic using motors

Definitions

  • the invention relates to the technical field of power transmission systems, and in particular to a torque transmission control device.
  • Automatic transmissions typically consist of input and output members, a plurality of planetary gear sets, and selectively coupled torque transfer control devices (clutches and brakes).
  • the torque transfer control device enables the connection of different planetary gear set members together or the planetary gear member to the fixed member to achieve different speed ratio outputs.
  • Chinese patent CN 101865218 B proposes a torque transmission control device that uses a worm gear and a wedge mechanism to realize torque transmission control by motor control, but the method can only realize torque transmission control in one direction by using one motor.
  • U.S. Patent No. 2007/0199793 A1 discloses a two-piece wedge block mechanism that requires two motors to control the torque transfer control devices of the two sets of clutches. The structure is complicated.
  • the technical problem to be solved by the present invention is to provide a torque transmission control device that does not use a hydraulic control element, does not use a synchronizer, and employs a control motor to control a torque transmission path through two brakes.
  • the device comprises a worm shaft, a spiral curved surface member, a spiral curved guide rail, a spiral curved guide rail 2, two sets of brakes, a casing, a planetary carrier 1 and a planetary carrier 2;
  • the housing is located outside the device, and the gear structure of the spiral curved member meshes with the helical teeth of the worm shaft.
  • the spiral curved member is selectively rotated about its axis, and the spiral
  • the curved guide rail 1 and the spiral curved guide rail 2 are respectively located on two sides of the spiral curved surface member, and the spiral curved surface member is matched with the spiral curved guide rail and the spiral curved guide rail 2 as a spiral pair;
  • Each set of brakes consists of two sets of brake discs.
  • the brake disc set 1 and the brake disc set 2 form the first set of brakes
  • the brake disc set 3 and the brake disc set 4 form the second set of brakes, the brake disc set 2 and the spiral curved guide rail.
  • the inner side surfaces are combined, and the brake disc group 3 is combined with the inner side surface of the spiral curved guide rail 2.
  • the brake disc group is fixed to the planetary carrier, and the brake disc group 4 is fixed to the planetary carrier 2.
  • the spiral curved member is selectively rotatable about an axis, and the spiral curved member is a geared structure.
  • the spiral guide on the side that cooperates with the spiral curved member applies a reaction force to the spiral curved member to push the spiral curved member to move in the axial direction; when the spiral curved member rotates in the reverse direction, it will be subjected to another The reaction force of the one side spiral guide pushes the spiral curved member to move in the other direction in the axial direction.
  • the combination of the brake pad set and the helical curved track constrains the radial and circumferential degrees of freedom of the brake pad set without constraining the axial freedom of the brake pad set along the axis.
  • the brake piece group 2 or the brake piece group 3 that pushes the screwing direction is axially moved to press the brake piece and the brake piece on the planetary carrier, and the planetary gear The frame is braked.
  • the apparatus also includes an electric motor coupled to the worm shaft and selectively applying torque to the worm shaft.
  • an electric motor coupled to the worm shaft and selectively applying torque to the worm shaft.
  • Figure 1 is a schematic structural view of a torque transmission control device of the present invention
  • FIG. 2 is a schematic structural view of a torque transmission control device of the present invention.
  • the present invention provides a torque transmission control device.
  • the casing 5 is located outside the entire apparatus, the gear structure of the spiral curved member 7 is meshed with the helical teeth of the worm shaft 8, and the spiral curved guide rail 6 and the spiral curved guide rail 2 are respectively located.
  • the spiral curved surface member 7 is combined with the spiral curved guide rail 6 and the spiral curved guide rail 2 as a spiral pair;
  • Each set of brakes consists of two sets of brake discs.
  • the brake disc set 3 and the brake disc set 2 4 form the first set of brakes
  • the brake disc set 3 10 and the brake disc set 4 11 form the second set of brakes
  • the brake disc set 2 Combined with the inner side surface of the spiral curved guide rail 6, the brake disc group 3 10 is combined with the inner side surface of the spiral curved guide rail 2, and the brake disc group 3 is fixed to the planetary carrier 2, and the brake disc group 4 is 11 It is fixed on the planet carrier 2 12 .
  • the spiral curved member 7 is selectively rotatable about the axis 1, and the spiral curved member 7 is a belt-gear structure.
  • the spiral guide on the side that cooperates with the spiral curved surface member 7 applies a reaction force to the spiral curved surface member 7, pushing the spiral curved surface member 7 to move in the axial direction; when the spiral curved surface member 7 is reversed When rotated, it will be subjected to the reaction force of the other side of the spiral guide to push the spiral curved member 7 to move in the other direction in the axial direction.
  • the combination of the brake pad set and the helical curved track constrains the radial and circumferential degrees of freedom of the brake pad set without constraining the axial freedom of the brake pad set along axis 1.
  • the brake piece group 4 or the brake pad group 10 10 that pushes the screwing direction is axially moved to press the brake piece and the brake piece on the planetary carrier.
  • the planet carrier is braked.
  • the apparatus also includes an electric motor coupled to the worm shaft 8 and selectively applying torque to the worm shaft 8.
  • the braking or rotating state of the planet carrier 2 and the planet carrier 2 will alter the torque transfer pattern of the subsequent gear system coupled to the present invention.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Gear Transmission (AREA)
  • Structure Of Transmissions (AREA)

Abstract

一种扭矩传递控制装置，该装置包括蜗杆轴（8）、可选择性绕轴旋转的带有齿轮结构的螺旋曲面构件（7）、两个螺旋曲面导轨（6、9）、两个行星轮架（2、12）、两套制动器、壳体（5）。螺旋曲面构件（7）两侧各有一个螺旋曲面导轨和行星轮架构件，螺旋曲面导轨（7）和行星轮架构件上安装有一组制动器片。当在蜗杆轴（8）驱动下绕轴线转动时，由于两侧的螺旋曲面导轨（6、9）构件的约束，螺旋曲面构件（7）的绕轴线旋转将产生沿轴向的旋进运动，进一步推动制动器片轴向运动，使一组制动器片被压紧，对应的行星轮架构件被制动；同时另一侧的制动器片脱开，另一侧的行星轮架构件可以转动。该装置结构紧凑，取消了同步器，不必再考虑扭矩传递控制过程中因同步器造成的冲击现象。

Description

一种扭矩传递控制装置 技术领域
本发明涉及动力传动系统技术领域，特别是指一种扭矩传递控制装置。
背景技术
自动变速器通常由输入输出构件，多个行星齿轮组以及选择性结合的扭矩传递控制装置(离合器和制动器)构成。扭矩传递控制装置实现将不同的行星齿轮组构件连接的一起或者将行星齿轮构件与固定件连接，实现不同的速比输出。
目前在传统的自动变速箱系统中，自动执行控制系统一般采用液压系统来实现。因此需要附加液压回路以及各种控制阀，另外液压控制系统存在一定比例的能量损失，液压系统在作动前需要经过油液填充阶段，而油液的填充过程所消耗的时间受到多种因素的影响，难以精确控制。
中国专利CN 101865218 B提出一种扭矩传递控制装置，利用蜗轮蜗杆及楔形机构通过电机控制实现扭矩传递控制，但该方法利用一个电机只能实现一个方向的扭矩传递控制。
美国专利US2007/0199793 A1公开了一种两套楔形块机构，需要用两个电机来控制两组离合器的扭矩传递控制装置，结构复杂。
发明内容
本发明要解决的技术问题是提供一种扭矩传递控制装置，不使用液压控制元件，不使用同步器，采用一个控制电机，通过两个制动器控制扭矩的传递路径。
该装置包括蜗杆轴、螺旋曲面构件、螺旋曲面导轨一、螺旋曲面导轨二、两套制动器、壳体、行星轮架一和行星轮架二；
其中，壳体位于整个装置外部，螺旋曲面构件的齿轮结构与蜗杆轴的螺旋齿啮合，当蜗杆轴选择性沿两个方向旋转时，将带动螺旋曲面构件选择性地向绕其轴线旋转，螺旋曲面导轨一和螺旋曲面导轨二分别位于螺旋曲面构件两侧，螺旋曲面构件与螺旋曲面导轨一和螺旋曲面导轨二配合为螺旋副；
每一套制动器由两组制动器片组成，制动器片组一和制动器片组二组成第一套制动器，制动器片组三和制动器片组四组成第二套制动器，制动器片组二与螺旋曲面导轨一的内侧表面组合在一起，制动器片组三与螺旋曲面导轨二的内侧表面组合在一起，制动器片组一固定于行星轮架一上，制动器片组四固定于行星轮架二上。
螺旋曲面构件能够选择性绕轴线旋转，螺旋曲面构件为带齿轮结构。
螺旋曲面构件选择性绕轴线旋转时，与螺旋曲面构件配合的一侧的螺旋导轨对螺旋曲面构件施加反作用力，推动螺旋曲面构件沿轴向运动；当螺旋曲面构件反向旋转时，将受到另一侧螺旋导轨的反作用力，推动螺旋曲面构件沿轴向的另一个方向运动。
制动器片组与螺旋曲面导轨的组合方式约束了制动器片组的径向和周向自由度，没有约束制动器片组沿轴线的轴向自由度。
螺旋曲面构件在向某一个轴向旋进运动时，将推动旋进方向的制动器片组二或者制动器片组三做轴向运动，使制动器片与行星轮架上的制动器片压紧，行星轮架被制动。
该装置还包括电动机，电动机连接到蜗杆轴上，并可以向蜗杆轴选择性的施加扭矩。通过调整电动机的转速方向，改变螺旋曲面构件的轴向运动方向，控制制动器的脱开与结合，实现转矩传递路线的改变。
本发明的上述技术方案的有益效果如下：
1)结构紧凑，采用螺旋曲面构件与两个螺旋导轨的组合，并与两个制动器一起协同工作，有效简化了扭矩传递控制装置系统的结构复杂性；2)取消了同步器，简化了扭矩传递控制过程中要考虑的同 步器造成的冲击现象。
附图说明
图1为本发明的扭矩传递控制装置结构原理图；
图2为本发明的扭矩传递控制装置结构示意图。
其中：1-轴线；2-行星轮架一；3-制动器片组一；4-制动器片组二；5-壳体；6-螺旋曲面导轨一；7-螺旋曲面构件；8-蜗杆轴；9-螺旋曲面导轨二；10-制动器片组三；11-制动器片组四；12-行星轮架二。
具体实施方式
为使本发明要解决的技术问题、技术方案和优点更加清楚，下面将结合附图及具体实施例进行详细描述。
本发明提供一种扭矩传递控制装置。
如图1和图2所示，该装置中，壳体5位于整个装置外部，螺旋曲面构件7的齿轮结构与蜗杆轴8的螺旋齿啮合，螺旋曲面导轨一6和螺旋曲面导轨二9分别位于螺旋曲面构件7两侧，螺旋曲面构件7与螺旋曲面导轨一6和螺旋曲面导轨二9配合为螺旋副；
每一套制动器由两组制动器片组成，制动器片组一3和制动器片组二4组成第一套制动器，制动器片组三10和制动器片组四11组成第二套制动器，制动器片组二4与螺旋曲面导轨一6的内侧表面组合在一起，制动器片组三10与螺旋曲面导轨二9的内侧表面组合在一起，制动器片组一3固定于行星轮架一2上，制动器片组四11固定于行星轮架二12上。
螺旋曲面构件7能够选择性绕轴线1旋转，螺旋曲面构件7为带齿轮结构。
螺旋曲面构件7选择性绕轴线1旋转时，与螺旋曲面构件7配合的一侧的螺旋导轨对螺旋曲面构件7施加反作用力，推动螺旋曲面构件7沿轴向运动；当螺旋曲面构件7反向旋转时，将受到另一侧螺旋导轨的反作用力，推动螺旋曲面构件7沿轴向的另一个方向运动。
制动器片组与螺旋曲面导轨的组合方式约束了制动器片组的径向和周向自由度，没有约束制动器片组沿轴线1的轴向自由度。
螺旋曲面构件7在向某一个轴向旋进运动时，将推动旋进方向的制动器片组二4或者制动器片组三10做轴向运动，使制动器片与行星轮架上的制动器片压紧，行星轮架被制动。
该装置还包括电动机，电动机连接到蜗杆轴8上，并可以向蜗杆轴8选择性的施加扭矩。
在使用过程中，通过调整电动机的转速方向，改变螺旋曲面构件7的轴向运动方向，控制制动器的脱开与结合，实现转矩传递路线的改变。
行星轮架一2和行星轮架二10的制动或者旋转状态，将改变与本发明相连接的后续齿轮系统的扭矩传递方式。
以上所述是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明所述原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (6)

  1. 一种扭矩传递控制装置，其特征在于：包括蜗杆轴(8)、螺旋曲面构件(7)、螺旋曲面导轨一(6)、螺旋曲面导轨二(9)、两套制动器、壳体(5)、行星轮架一(2)和行星轮架二(12)；
    其中，壳体(5)位于整个装置外部，螺旋曲面构件(7)的齿轮结构与蜗杆轴(8)的螺旋齿啮合，螺旋曲面导轨一(6)和螺旋曲面导轨二(9)分别位于螺旋曲面构件(7)两侧，螺旋曲面构件(7)与螺旋曲面导轨一(6)和螺旋曲面导轨二(9)配合为螺旋副；
    每一套制动器由两组制动器片组成，制动器片组一(3)和制动器片组二(4)组成第一套制动器，制动器片组三(10)和制动器片组四(11)组成第二套制动器，制动器片组二(4)与螺旋曲面导轨一(6)的内侧表面组合在一起，制动器片组三(10)与螺旋曲面导轨二(9)的内侧表面组合在一起，制动器片组一(3)固定于行星轮架一(2)上，制动器片组四(11)固定于行星轮架二(12)上。
  2. 根据权利要求1所述的扭矩传递控制装置，其特征在于：所述螺旋曲面构件(7)能够选择性绕轴线(1)旋转，螺旋曲面构件(7)为带齿轮结构。
  3. 根据权利要求1所述的扭矩传递控制装置，其特征在于：所述螺旋曲面构件(7)选择性绕轴线(1)旋转时，与螺旋曲面构件(7)配合的一侧的螺旋导轨对螺旋曲面构件(7)施加反作用力，推动螺旋曲面构件(7)沿轴向运动；当螺旋曲面构件(7)反向旋转时，将受到另一侧螺旋导轨的反作用力，推动螺旋曲面构件(7)沿轴向的另一个方向运动。
  4. 根据权利要求1所述的扭矩传递控制装置，其特征在于：所述制动器片组与螺旋曲面导轨的组合方式约束了制动器片组的径向和周向自由度，没有约束制动器片组沿轴线(1)的轴向自由度。
  5. 根据权利要求1所述的扭矩传递控制装置，其特征在于：所述螺旋曲面构件(7)在向某一个轴向旋进运动时，将推动旋进方向的制动器片组二(4)或者制动器片组三(10)做轴向运动，使制动器片与行星轮架上的制动器片压紧，行星轮架被制动。
  6. 根据权利要求1所述的扭矩传递控制装置，其特征在于：该装置包括电动机，电动机连接到蜗杆轴(8)上，并可以向蜗杆轴(8)选择性的施加扭矩。
PCT/CN2017/080994 2016-12-05 2017-04-19 一种扭矩传递控制装置 WO2018103249A1 (zh)

Applications Claiming Priority (2)

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CN201611102417.4A CN106763293A (zh) 2016-12-05 2016-12-05 一种扭矩传递控制装置
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