WO2018059067A1 - 用于汽车的活动部件的齿轮驱动装置 - Google Patents

用于汽车的活动部件的齿轮驱动装置 Download PDF

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Publication number
WO2018059067A1
WO2018059067A1 PCT/CN2017/092460 CN2017092460W WO2018059067A1 WO 2018059067 A1 WO2018059067 A1 WO 2018059067A1 CN 2017092460 W CN2017092460 W CN 2017092460W WO 2018059067 A1 WO2018059067 A1 WO 2018059067A1
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WIPO (PCT)
Prior art keywords
gear
gear assembly
planetary gear
stage planetary
driving device
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PCT/CN2017/092460
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English (en)
French (fr)
Inventor
徐建平
杨清春
江远
邱湘淮
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广东肇庆爱龙威机电有限公司
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Application filed by 广东肇庆爱龙威机电有限公司 filed Critical 广东肇庆爱龙威机电有限公司
Priority to US16/336,828 priority Critical patent/US20210332871A1/en
Priority to EP17854521.6A priority patent/EP3522342A4/en
Publication of WO2018059067A1 publication Critical patent/WO2018059067A1/zh

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
    • 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
    • F16H1/46—Systems consisting of a plurality of gear trains each with orbital gears, i.e. systems having three or more central gears
    • 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
    • F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J9/00—Devices not provided for in one of main groups B60J1/00 - B60J7/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R3/00—Arrangements of steps or ladders facilitating access to or on the vehicle, e.g. running-boards
    • B60R3/02—Retractable steps or ladders, e.g. movable under shock
    • 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
    • F16H2001/323—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 comprising eccentric crankshafts driving or driven by a 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
    • F16H2001/327—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 with orbital gear sets comprising an internally toothed ring gear
    • 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
    • F16H2057/02082—Gearboxes for particular applications for application in vehicles other than propelling, e.g. adjustment of parts

Definitions

  • the present invention relates to the field of automotive technology, and more particularly to moving parts of automobiles, such as a welcome foot pedal. More specifically, the present invention relates to a gear driving device for driving a moving part such as a welcome pedal of an automobile.
  • a welcome pedal located under the doors for the car occupants to get on and off.
  • Such a welcome foot pedal is usually arranged to be movable by a telescopic mechanism so as to extend relative to the vehicle body during use and to retract below the chassis when not in use, thereby reducing the space occupied by the car and avoiding scratching.
  • Other vehicles or pedestrians maintain the aesthetic appearance of the overall shape of the vehicle.
  • the motor vehicle is provided with a drive for driving the welcome pedal, in particular a gear-type drive.
  • a drive for driving the welcome pedal in particular a gear-type drive.
  • known drive devices generally include a multi-stage worm gear drive. This drive is intended to transmit motion to the welcome foot pedal by the cooperation of the worm gear and can be self-locking when the worm gear stops moving in order to maintain the position of the welcome foot pedal.
  • the present invention is directed to solving the above problems in the prior art, and proposes a gear type driving device for driving a moving part of a car, in particular, a welcome foot pedal.
  • a gear driving device for a movable part of an automobile includes a motor and a driver gear case, wherein the driver gear case includes a multi-stage planetary gear assembly and a small-tooth gear gear assembly connected in series, the multi-stage planetary gear A first stage planetary gear assembly of the assembly is coupled to the motor, and a last stage planetary gear assembly of the multi-stage planetary gear assembly is coupled to the small differential gear assembly.
  • the gear driving device of the present invention consists in replacing the worm gear with a multi-stage planetary gear assembly and implementing a self-locking function with a small tooth difference gear assembly.
  • Such a gear drive has the advantages of small size, light weight and high work efficiency.
  • the final stage planetary gear assembly includes a carrier in the form of a disk, a plurality of gears arranged on one side surface of the carrier in a circumferential direction, and an output shaft disposed on the other side surface of the carrier
  • the output shaft includes, at the free end, an eccentric shaft segment that is offset relative to a center of the planet carrier, the eccentric shaft segment being directly coupled to the small tooth difference gear assembly;
  • a bushing disposed between the small tooth difference gear assembly and the last stage planetary gear assembly, the bushing being mounted on an output shaft of the final stage planetary gear assembly and abutting the planet of the last stage planetary gear assembly frame;
  • the bushing is formed by an oil-impregnated bearing
  • the small tooth difference gear assembly includes a fixed gear, a movable gear, and a planetary gear that simultaneously engages the fixed gear and the movable gear, wherein an output shaft of the movable gear is supported by the small differential gear via a mounting bearing On the housing bracket of the assembly;
  • the mounting bearing is a composite bearing
  • the fixed gear has 22 teeth
  • the movable gear has 23 teeth
  • the planetary gear has 20 teeth
  • the moving parts of the car are a welcome footboard or a car cover;
  • the drive gearbox is made of a metallic or plastic material
  • the motor is an electric motor.
  • Figure 1 is an exploded perspective view of a preferred embodiment of a gear driving device of the present invention
  • Figure 2 is a cross-sectional view showing the assembled state of the drive gearbox of Figure 1.
  • the gear driving device of the present invention includes a motor 100 and a driver gearbox 200 coupled to the motor 100, which can convert and transmit rotational motion of the output shaft of the motor 100 to an actuator such as a telescopic mechanism, the actuator
  • the moving parts of the car connected to it are then extended and retracted relative to the body.
  • the moving parts of the car can in particular be a welcome footboard or a car cover.
  • the drive gearbox 200 includes a multi-stage planetary gear assembly and a small differential gear assembly.
  • the multi-stage planetary gear assemblies are connected to one another in series, wherein a first stage planetary gear assembly is used to connect the motor and a final stage planetary gear assembly is coupled to the small differential gear assembly.
  • the drive gearbox 200 includes a two-stage planetary gear assembly, namely a first stage planetary gear assembly 1 and a second stage planetary planetary gear assembly 2.
  • the first and second stage planetary gear assemblies 1, 2 are engaged with one another and mounted in a cylindrical casing 4 of the drive gearbox 200, as shown in FIG.
  • the first stage planetary gear assembly 1 includes a disk-shaped carrier 11 and a plurality of gears 12 disposed on one side surface of the carrier 11, which are arranged spaced apart in the circumferential or circumferential direction of the carrier 11. And can mesh with the gear 101 fixed to the output shaft of the motor 100 to receive and convert or transmit rotational motion from the output shaft of the motor 100.
  • the second stage planetary gear assembly 2 includes a disk-shaped carrier 21 and a plurality of gears 22 disposed on one side surface of the carrier 21, the gears 22 being spaced apart in the circumferential direction of the carrier 21, and The output gear 13 disposed on the other side surface of the carrier 11 of the first stage planetary gear assembly 1 is engaged to receive and transmit the motion from the first planetary gear assembly 1.
  • the other side surface of the carrier 21 of the second stage planetary gear assembly 2 is provided with an output shaft 23.
  • the output shaft 23 has a through hole extending in the axial direction (i.e., the left-right direction in Fig. 2) and concentric with the carrier 21, and the free end of the output shaft 23 includes relative to the carrier
  • the center of the 21 is offset by an eccentric shaft segment 24.
  • the eccentric shaft segment 24 is intended to be directly coupled to the small tooth difference gear assembly 3, as will be further explained below.
  • the small tooth difference gear assembly 3 of the present invention includes a fixed gear 31, A movable gear 33 and a planetary gear 32 that meshes with the fixed gear 31 and the movable gear 33 at the same time.
  • the fixed gear 31 and the movable gear 33 are gears having internal teeth
  • the planetary gears 32 have external teeth that mesh with the internal teeth.
  • the fixed gear 31 has 22 teeth
  • the movable gear 33 has 23 teeth
  • the planetary gear 32 has 20 teeth.
  • the fixed gear 31 of the small-tooth difference gear assembly 3 is fixed to one axial end of the housing bracket 34 of the small-tooth difference gear assembly 3, thereby being adjacent to the housing bracket 34.
  • An axially mounted movable gear 33 together sandwiches the planetary gear 32 and encloses the movable gear 33 and the planetary gear 32 in the housing bracket 34.
  • the planet gears 32 are mounted directly on the eccentric shaft section 24 of the output shaft 23 of the second stage planetary gear set 2 via bearings.
  • the less differential gear assembly 3 is assembled with the first and second stage planetary gear assemblies 1, 2 to form a motion transmitting mechanism between the motor 100 and the subsequent actuator.
  • the side of the movable gear 33 facing away from the planet gears 32 has a shaft 36 extending from the housing bracket 34 to serve as an output shaft for the entire gear drive.
  • the movable gear 33 is supported on the housing bracket 34 by a mounting bearing 35 mounted on the shaft 36 and located inside the housing bracket 34.
  • the mounting bearing 35 is a ball bearing.
  • the mounting bearing 35 is a composite bearing.
  • a composite bearing is usually formed by winding and rolling of polytetrafluoroethylene and bronze powder, and has the advantage of large bearing capacity.
  • a bushing 5 is disposed between the small tooth difference gear assembly 3 and the second stage planetary gear assembly 2 directly associated therewith.
  • the bushing 5 can be mounted on the output shaft 23 of the second stage planetary gear assembly 2 and can abut both the planet carrier 21 of the second stage planetary gear assembly 2 and the end of the casing 4 on both sides in the axial direction. Cover or protrusion.
  • the bushing 5 can position the planetary gear assemblies 1, 2 in the axial direction to prevent the planetary gear assemblies 1, 2 from swaying or shifting, thereby reducing friction and extending the life of the components.
  • the bushing 5 can take the form of an oil-impregnated bearing.
  • the oil-impregnated bearing can be produced by powder metallurgy as is generally known.
  • the drive gearbox 200 of the present invention can be made of a metallic or plastic material. That is, the respective components of the first and second gear assemblies 1, 2 and the small tooth difference gear assembly 3 may be metal parts or plastic parts.
  • the motor 100 is preferably an electric motor.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Retarders (AREA)

Abstract

一种用于汽车的活动部件的齿轮驱动装置，该齿轮驱动装置包括马达（100）和驱动器齿轮箱（200），该驱动器齿轮箱包括串联连接的多级行星齿轮组件（1，2）和一个少齿差齿轮组件（3），该多级行星齿轮组件中的第一级行星齿轮组件与该马达相连，该多级行星齿轮组件中的最后级行星齿轮组件与该少齿差齿轮组件相连。该齿轮驱动装置具有体积小、重量轻以及工作效率高的优点。

Description

用于汽车的活动部件的齿轮驱动装置 技术领域
本发明涉及汽车技术领域，尤其涉及汽车的活动部件，例如迎宾脚踏板。更具体地说，本发明涉及用于驱动汽车的迎宾脚踏板等活动部件的齿轮驱动装置。
背景技术
当前很多类型汽车的底盘上都安装有位于车门下方以供汽车乘员上下车的迎宾脚踏板。这种迎宾脚踏板通常设置成能通过伸缩机构活动，以便在使用时相对于车身伸出，而在不使用时缩回到底盘下方，从而一方面减少汽车占用的空间并且避免刮蹭到其他车辆或行人，另一方面保持车辆整体外形的美观。
为此，所述汽车设置有用于驱动迎宾脚踏板运动的驱动装置、尤其是齿轮型的驱动装置。目前已知的驱动装置一般包括多级蜗轮蜗杆传动机构。这种驱动装置旨在通过蜗轮蜗杆的配合向迎宾脚踏板传递运动，并且可以当蜗轮蜗杆停止运动时自锁以便保持该迎宾脚踏板的位置。
然而，这些已知的驱动装置往往具有比较大的体积和重量，并且它们的工作效率也比较低。
发明内容
本发明旨在解决上述现有技术中的问题，并且提出一种用于驱动汽车的活动部件、尤其是迎宾脚踏板的齿轮型的驱动装置。
根据本发明，用于汽车的活动部件的齿轮驱动装置包括马达和驱动器齿轮箱，其中，该驱动器齿轮箱包括串联连接的多级行星齿轮组件和一个少齿差齿轮组件，所述多级行星齿轮组件中的第一级行星齿轮组件与该马达相连，所述多级行星齿轮组件中的最后级行星齿轮组件与该少齿差齿轮组件相连。
本发明的齿轮驱动装置在于用多级行星齿轮组件替代蜗轮蜗杆，并且用少齿差齿轮组件实现自锁功能。这样的齿轮驱动装置具有体积小、重量轻并且工作效率高的优点。
根据本发明的齿轮驱动装置还具有如下有利的技术特征：
-所述最后级行星齿轮组件包括圆盘形式的行星架、沿周向方向布置在该行星架的一侧表面上的多个齿轮、以及布置在该行星架的另一侧表面上的输出轴，该输出轴在自由端处包括相对于该行星架的中心偏置的偏心轴段，该偏心轴段与所述少齿差齿轮组件直接相连；
-所述少齿差齿轮组件与所述最后级行星齿轮组件之间设置有衬套，该衬套安放在该最后级行星齿轮组件的输出轴上，并且抵靠该最后级行星齿轮组件的行星架；
-所述衬套由含油轴承形成；
-所述少齿差齿轮组件包括一个固定齿轮、一个活动齿轮以及同时与该固定齿轮和该活动齿轮接合的一个行星齿轮，其中，该活动齿轮的输出轴经由安装轴承支承在该少齿差齿轮组件的壳体支架上；
-所述安装轴承为复合轴承；
-所述固定齿轮具有22个齿，所述活动齿轮具有23个齿，所述行星齿轮具有20个齿；
-所述汽车的活动部件为迎宾脚踏板或者车厢盖板；
-所述驱动器齿轮箱由金属材料或塑料材料制成；以及
-所述马达为电动马达。
附图说明
下面结合附图详细说明本发明的优选实施例，在附图中：
图1是本发明的齿轮驱动装置的优选实施例的部件分解透视图；
图2示出图1中的驱动器齿轮箱的组装状态的剖视图。
具体实施方式
本发明的齿轮驱动装置包括马达100以及与该马达100相连的驱动器齿轮箱200，该驱动器齿轮箱200可以将马达100的输出轴的旋转运动转换并传递到诸如伸缩机构的执行机构，该执行机构则使与它相连的汽车的活动部件相对于车身伸出和收回。该汽车的活动部件尤其可以是迎宾脚踏板或车厢盖板。
根据本发明的基本特征，驱动器齿轮箱200包括多级行星齿轮组件和一个少齿差齿轮组件。所述多级行星齿轮组件彼此串联连接，其中，第一级行星齿轮组件用于连接马达，最后级行星齿轮组件则与所述少齿差齿轮组件相连。
在图1和2所示的优选实施例中，驱动器齿轮箱200包括两级行星齿轮组件，即，第一级行星齿轮组件1和第二级行星行星齿轮组件2。所述第一和第二级行星齿轮组件1、2彼此接合并且安装在驱动器齿轮箱200的圆柱形箱壳4中，如图2所示。
第一级行星齿轮组件1包括圆盘形的行星架11以及设置在该行星架11的一侧表面上的多个齿轮12，这些齿轮12沿行星架11的圆周或周向方向间隔开地布置，并且可以与固定在马达100的输出轴上的齿轮101啮合，以便接收并转换或传递来自马达100的输出轴的旋转运动。
第二级行星齿轮组件2包括圆盘形的行星架21以及设置在该行星架21的一侧表面上的多个齿轮22，这些齿轮22沿行星架21的周向方向间隔开地布置，并且与设置在第一级行星齿轮组件1的行星架11的另一侧表面上的输出齿轮13啮合，以接收并传递来自该第一行星齿轮组件1的运动。
如图1和2中所示出的，作为最后级行星齿轮组件，第二级行星齿轮组件2的行星架21的另一侧表面上设置有输出轴23。根据本发明的优选实施例，该输出轴23具有沿轴向方向(即图2中的左右方向)延伸并且与行星架21同心的通孔，并且该输出轴23的自由端包括相对于行星架21的中心偏置的偏心轴段24。该偏心轴段24旨在与少齿差齿轮组件3直接相连，下文将对此作进一步的说明。
仍参见图1和2，本发明的少齿差齿轮组件3包括一个固定齿轮31、 一个活动齿轮33以及与该固定齿轮31和该活动齿轮33同时啮合的一个行星齿轮32。如图中所示，固定齿轮31和活动齿轮33是具有内齿的齿轮，行星齿轮32则具有与所述内齿啮合的外齿。作为一个示例，所述固定齿轮31具有22个齿，所述活动齿轮33具有23个齿，所述行星齿轮32具有20个齿。
如可从图2中看出的，少齿差齿轮组件3的固定齿轮31固定在该少齿差齿轮组件3的壳体支架34的一个轴向端，从而与靠近该壳体支架34的另一个轴向端安装的活动齿轮33一起将行星齿轮32夹在中间，并且将所述活动齿轮33以及所述行星齿轮32封装在该壳体支架34中。
所述行星齿轮32经由轴承直接安装在第二级行星齿轮组2的输出轴23的偏心轴段24上。这样，少齿差齿轮组件3与第一和第二级行星齿轮组件1、2组装形成了位于马达100和随后的执行机构之间的运动传递机构。
仍参见图2，活动齿轮33的背离行星齿轮32的一侧具有从壳体支架34伸出的轴36，以作为整个齿轮驱动装置的输出轴。如图所示，所述活动齿轮33通过安放在该轴36上并且位于壳体支架34内侧的安装轴承35支承在该壳体支架34上。所述安装轴承35为滚珠轴承。
优选地，所述安装轴承35为复合轴承。这种复合轴承通常由聚四氟乙烯和青铜粉等卷绕轧制而成，并且具有承载力大的优点。
参见图2并且结合图1，作为本发明的一个优选实施例，在少齿差齿轮组件3和与之直接关联的第二级行星齿轮组件2之间设置有衬套5。该衬套5可以安装在第二级行星齿轮组件2的输出轴23上，并且可以在轴向两侧分别抵靠第二级行星齿轮组件2的行星架21以及抵靠箱壳4的端部封盖或突起。
这样，所述衬套5可以在轴向方向上对行星齿轮组件1、2进行定位，以便防止这些行星齿轮组件1、2晃动或移位，从而减少摩擦并且延长部件的使用寿命。
特别地，衬套5可以采取含油轴承的形式。该含油轴承可以如通常已知的那样通过粉末冶金法制成。
有利地，本发明的驱动器齿轮箱200可以由金属材料或塑料材料制成。也就是说，所述第一和第二齿轮组件1、2以及所述少齿差齿轮组件3的各个部件可以是金属部件或塑料部件。
最后，应当指出，马达100优选为电动马达。

Claims (10)

  1. 一种齿轮驱动装置，它用于汽车的活动部件，并且包括马达和驱动器齿轮箱，其特征在于，该驱动器齿轮箱包括串联连接的多级行星齿轮组件和一个少齿差齿轮组件，该多级行星齿轮组件中的第一级行星齿轮组件与该马达相连，该多级行星齿轮组件中的最后级行星齿轮组件与该少齿差齿轮组件相连。
  2. 根据权利要求1所述的齿轮驱动装置，其特征在于，所述最后级行星齿轮组件包括圆盘形式的行星架、沿周向方向布置在该行星架的一侧表面上的多个齿轮、以及布置在该行星架的另一侧表面上的输出轴，该输出轴在自由端处包括相对于该行星架的中心偏置的偏心轴段，该偏心轴段与所述少齿差齿轮组件直接相连。
  3. 根据权利要求2所述的齿轮驱动装置，其特征在于，所述少齿差齿轮组件与所述最后级行星齿轮组件之间设置有衬套，该衬套安放在该最后级行星齿轮组件的输出轴上，并且抵靠该最后级行星齿轮组件的行星架。
  4. 根据权利要求3所述的齿轮驱动装置，其特征在于，所述衬套由含油轴承形成。
  5. 根据权利要求1至4中任一项所述的齿轮驱动装置，所述少齿差齿轮组件包括一个固定齿轮、一个活动齿轮以及同时与该固定齿轮和该活动齿轮接合的一个行星齿轮，其中，该活动齿轮的输出轴通过安装轴承支承在该少齿差齿轮组件的壳体支架上。
  6. 根据权利要求5所述的齿轮驱动装置，其特征在于，所述安装轴承为复合轴承。
  7. 根据权利要求5所述的齿轮驱动装置，其特征在于，所述固定齿轮具有22个齿，所述活动齿轮具有23个齿，所述行星齿轮具有20个齿。
  8. 根据权利要求1至4中任一项所述的齿轮驱动装置，其特征在于，所述汽车的活动部件为迎宾脚踏板或者车厢盖板。
  9. 根据权利要求1至4中任一项所述的齿轮驱动装置，其特征在于， 所述驱动器齿轮箱由金属材料或塑料材料制成。
  10. 根据权利要求1至4中任一项所述的齿轮驱动装置，其特征在于，所述马达为电动马达。
PCT/CN2017/092460 2016-09-29 2017-07-11 用于汽车的活动部件的齿轮驱动装置 WO2018059067A1 (zh)

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