WO2016127901A1 - 汽车后视镜镜面驱动器双离合打滑装置 - Google Patents

汽车后视镜镜面驱动器双离合打滑装置 Download PDF

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Publication number
WO2016127901A1
WO2016127901A1 PCT/CN2016/073423 CN2016073423W WO2016127901A1 WO 2016127901 A1 WO2016127901 A1 WO 2016127901A1 CN 2016073423 W CN2016073423 W CN 2016073423W WO 2016127901 A1 WO2016127901 A1 WO 2016127901A1
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WIPO (PCT)
Prior art keywords
sleeve
mirror
helical gear
lifting screw
gear disc
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PCT/CN2016/073423
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English (en)
French (fr)
Inventor
黄海军
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宁波精成车业有限公司
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Publication of WO2016127901A1 publication Critical patent/WO2016127901A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
    • B60R1/02—Rear-view mirror arrangements
    • B60R1/06—Rear-view mirror arrangements mounted on vehicle exterior
    • B60R1/062—Rear-view mirror arrangements mounted on vehicle exterior with remote control for adjusting position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
    • B60R1/02—Rear-view mirror arrangements
    • B60R1/06—Rear-view mirror arrangements mounted on vehicle exterior
    • B60R1/062—Rear-view mirror arrangements mounted on vehicle exterior with remote control for adjusting position
    • B60R1/064—Rear-view mirror arrangements mounted on vehicle exterior with remote control for adjusting position by manually powered actuators
    • B60R1/066—Rear-view mirror arrangements mounted on vehicle exterior with remote control for adjusting position by manually powered actuators for adjusting the mirror relative to its housing

Definitions

  • the invention relates to the technical field of a rearview mirror driver of an automobile, in particular to a double clutch slipping device for a mirror driver of a vehicle rear view mirror.
  • the car rearview mirror is an important accessory installed in front of the left and right sides of the car's cab. It plays an important role in driving the crew to observe the scene behind the car and drive safely.
  • the adjustment mechanism installed in the rearview mirror of the car can adjust the mirror angle and visual range of the rearview mirror to provide the driver with the best rear view.
  • mirror-automatically adjustable rearview mirrors often cause mirror breakage due to mirror overturning.
  • the adjusting mechanism can slip when the mirror is turned to the extreme position to prevent the mirror from overturning and rupturing.
  • the main components thereof include a DC micro motor, a worm, a helical gear plate, and a lifting screw.
  • the output shaft of the DC micro motor is fixed to the worm, and the worm meshes with the teeth on the outer side wall of the helical gear plate.
  • the center hole of the helical gear plate The sleeve is disposed on the lifting screw, and the central hole of the helical gear plate is provided with a threaded tooth that cooperates with the external thread on the outer side wall of the lifting screw, and the top of the lifting screw is connected with the floating plate of the mirror surface.
  • the mirror surface is flipped with the floating plate by the transmission of the worm, the helical gear plate and the lifting screw.
  • the threaded teeth on the helical gear disc may be radially expanded or reset along the radial direction of the helical gear disc when subjected to a radial force on the lifting screw.
  • the axial displacement of the lifting screw is limited, and the resistance is increased, so that the threaded teeth are expanded or reset along the radial direction of the helical gear plate, thereby realizing that the threaded teeth continue in the lifting screw.
  • the teeth of the external thread are slipped between each other, and finally the purpose of preventing the mirror from over-stroke is achieved.
  • the adjusting mechanism realizes the detachment between the driver and the mirror transmission by the continuous back-and-forth expansion and the reset slip between the teeth and the teeth on the external thread of the lifting screw of the threaded convex teeth, thereby causing the rear view mirror to continue
  • the vibration is accompanied by a collision sound, and the external thread of the lifting screw and the threaded claw on the helical gear plate are also prone to wear.
  • the technical problem to be solved by the present invention is to provide a double-clutch sliding device for a rear view mirror mirror driver that can prevent mirror overtravel cracking when the mirror is turned to the extreme position and can not be mirror-reversed under a large external force.
  • the technical solution adopted by the present invention is to provide a double-clutch sliding device for a rearview mirror driver of an automobile, which comprises a lifting screw connected at one end to the mirror floating plate and a tilting sleeve which is sleeved on the lifting screw and driven to rotate by an external driver.
  • a gear disc a sleeve is arranged between the helical gear disc and the lifting screw, and the upper end of the sleeve is provided with a plurality of claw heads distributed along the circumferential direction of the sleeve, and the lower ends of all the claw heads are fixed with the sleeve, and all the claw heads are The free end is located above the sleeve, and a gap for arranging or expanding the free end of the claw head along the radial direction of the sleeve is left between any adjacent two claws, and the inner side walls of each claw head are respectively provided with lifting and lowering
  • the external thread of the screw cooperates with the protruding tooth, and the helical gear disc is tightly engaged with the sleeve, and the sleeve is provided with a limiting mechanism for limiting the axial movement of the helical gear disc.
  • the double-clutch sliding device of the automobile mirror mirror driver of the present invention has the following advantages compared with the prior art: First, through the tight fitting of the sleeve and the helical gear plate, the mirror surface can be turned to the limit position. A good slipping effect prevents the mirror from overtraveling, and at the same time does not cause mirror shake due to the slip of the sleeve and the helical gear disc, and the collision between the tooth and the tooth drive, and secondly, through the convex teeth on the sleeve
  • the utility model can cooperate with the lifting screw to drive the mirror surface to be turned over. At the same time, when manual adjustment is required, the teeth on the lifting thread and the lifting thread can be slipped by applying a large force, and finally the multi-stage sliding control is realized.
  • the limiting mechanism means that the sleeve is provided with an annular flange with an annular bevel, and one end of the helical gear disc near the annular flange is provided with a slope matching the annular slope,
  • a compression spring is disposed on the sleeve at an end of the helical gear disc facing away from the annular flange, and one end of the compression spring abuts against an end of the helical gear disc facing away from the annular flange, and the other end of the compression spring is fixed to the sleeve The snaps on the top are against each other. .
  • the sleeve is provided with an elastic fastening ring, and the inner side wall of the elastic fastening ring is engaged with the outer side walls of all the claws.
  • FIG. 1 is a schematic view showing the structure of a dual clutch slip device of a rear view mirror driver of the present invention.
  • FIG. 2 is an exploded view of the dual-clutch slip device of the rear view mirror driver of the present invention.
  • the present invention provides a dual-clutch sliding device for a rearview mirror driver of a vehicle, which includes one end for a lifting screw 1 connected to the mirror floating plate and a helical gear disk 2 which is sleeved on the lifting screw 1 and driven to rotate by an external drive.
  • a sleeve 3 is arranged between the helical gear plate 2 and the lifting screw 1, and one end of the sleeve 3
  • a plurality of claw heads 4 distributed circumferentially along the axis of the sleeve 3 are provided.
  • all of the claws 4 are evenly distributed along the circumferential direction of the axis of the sleeve 3.
  • the lower ends of all the claws 4 are fixed to the sleeve 3, and the free ends of all the claws 4 are located above the sleeve 3, and any free ends between the adjacent two claws 4 are provided for the free ends of the claws 4 along the sleeve 3.
  • the radially folded or expanded gaps are respectively provided on the inner side walls of the respective claw heads 4 with the teeth 4.1 which cooperate with the external threads of the lifting screw 1.
  • the lifting screw 1 when the mirror is manually turned, the lifting screw 1 is subjected to an axial thrust, and its transmission to the teeth 4.1 of the claw 4 is converted into a radial force along the lifting screw 1 for the claw 4, Thereby driving all the claws 4 to expand, when the radial force continues to increase and the claws 4 are expanded to the limit position, the teeth 4.1 and the thread teeth on the lifting screw 1 slip, thereby the axial movement of the lifting screw 1
  • the rotation of the helical gear plate 2 and the sleeve 3 is not affected. Specifically, it can be used as a manual adjustment mechanism in which the external drive motor does not operate.
  • the helical gear plate 2 is tightly engaged with the sleeve 3, and the sleeve 3 is provided with a limiting mechanism for restricting the axial movement of the helical gear plate 2. Specifically, when the external drive drives the helical gear plate 2 to rotate, the sleeve 3 rotates with the helical gear plate 2 under the action of the static friction force of the helical gear plate 2 and the sleeve 3, thereby driving the lifting screw 1 to achieve axial movement.
  • the above tight fit means that the outer side wall of the sleeve 3 has an interference fit with the inner side wall of the helical gear plate 2, and when the torque reaches the limit value, the drive sleeve 3 and the helical gear plate 2 are relatively rotated and slipped, that is, the above Tight fit does not mean that the joint is fully tightened, but rather that there is a certain amount of tension between the two to produce a certain maximum static friction.
  • the limiting mechanism means that the sleeve 3 is provided with an annular flange 3.1 with an annular bevel, and one end of the helical gear plate 2 near the annular flange 3.1 is provided with a slope matching the annular inclined surface.
  • a compression spring 5 is disposed on the sleeve 3 at an end of the helical gear disc 2 facing away from the annular flange 3.1.
  • One end of the compression spring 5 abuts against the end of the helical gear disc 2 facing away from the annular flange 3.1, and the spring is pressed.
  • the other end of the 5 abuts against the buckle 6 fixed to the sleeve 3.
  • the sleeve 3 is provided with an elastic fastening ring 7, and the inner side wall of the elastic fastening ring 7 is in contact with the outer side walls of all the claws 4.
  • the entire claw head 4 is formed in a ring shape, and the elastic fastening ring 7 is hooped on the claw head 4, thereby increasing the elastic force of the resetting of the claw head 4, and increasing the maximum radial force that the claw head 4 can bear. .
  • the driving principle of the mirror to adjust the mirror flip is that, firstly, the worm of the external drive meshes with the helical gear disc, thereby driving the helical gear disc to rotate, and then the sleeve is rotated by the static friction force of the helical gear disc and the sleeve, and then through the sleeve.
  • the upper convex tooth is threadedly engaged with the external thread on the lifting screw to realize the axial movement of the lifting screw.
  • the spherical joint of the lifting screw head is hinged with the mirror floating plate, and the lifting screw is used to stand on one side of the mirror floating plate. Make mirror The floating plate is flipped.
  • the tension of the claw head is greater than the maximum static friction between the helical gear disc and the sleeve. Therefore, during the operation of the driver, the sliding mechanism with the mirror surface turned to the extreme position preferentially triggers the helical gear disc to slip with the sleeve. It does not cause the teeth on the claws to slip with the thread teeth on the lifting screw. Therefore, during normal driving, the wind resistance or other external force acting on the mirror surface will not cause the mirror surface to be reversed due to the excessive static friction between the helical gear plate and the sleeve. Drive reliability can be set even smaller based on reliability.
  • the manual adjustment of the mirror flip function is that the person provides a large turning force on the mirror surface, so that the lifting screw receives a large axial force, thereby driving the claw on the sleeve to expand, so that the claw head
  • the teeth continue to slip on the lifting screw, that is, the teeth reciprocate and retract in the radial direction of the lifting screw, sliding between the crests and the roots of the teeth of the lifting screw.
  • the axial pressure provides a large pressure on the inclined surface of the helical gear disc. Therefore, the maximum static friction force of the helical gear disc and the sleeve at this time is increased by the axial pressure of the lifting screw. Therefore, the helical gear plate and the sleeve are relatively fixed and are locked with the output shaft of the drive.
  • the threads on the sleeve and the lifting screw on the sleeve may be self-locking threads.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Mechanical Engineering (AREA)
  • Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)

Abstract

一种汽车后视镜镜面驱动器双离合打滑装置，包括升降螺杆(1)和套于升降螺杆(1)上且由外部驱动器驱动旋转的斜齿轮盘(2)，所述斜齿轮盘(2)与升降螺杆(1)之间设有套管(3)，套管(3)上端设有沿套管(3)周向分布的多个爪头(4)，各爪头(4)的内侧壁上均分别设有与升降螺杆(1)的外螺纹相配合的凸牙(4.1)，所述斜齿轮盘(2)与套管(3)紧配合，所述套管(3)上设有用于限制斜齿轮盘(2)轴向运动的限位机构。所述双离合打滑装置使得汽车后视镜镜面在镜面翻转至极限位置时可以防止镜面超行程破裂，且能在较大外力作用下不发生镜面翻转。

Description

汽车后视镜镜面驱动器双离合打滑装置 技术领域
本发明涉及汽车后视镜镜面驱动器的技术领域，具体地是一种汽车后视镜镜面驱动器双离合打滑装置。
背景技术
汽车后视镜是安装在汽车驾驶室外左右两侧门前的重要配件，它对于驾驶人员观察车身后的场景，进行安全驾驶起着极为重要的作用。而安装在汽车后视镜内的调节机构可以实现后视镜镜面角度和视觉范围的可调，从而为驾驶人员提供最佳的后方视野。但是目前，此类镜面自动可调的后视镜往往由于镜面翻转超行程而导致镜面破裂。
现有技术中，已经有一种通过螺杆升降的传动方式来实现镜面角度调节的汽车后视镜镜面调节机构。且该调节机构可以在镜面翻转至极限位置时打滑从而防止镜面翻转超行程而破裂。其主要零部件包括直流微型电机、蜗杆、斜齿轮盘、升降螺杆，所述直流微型电机的输出轴与蜗杆固定，蜗杆与斜齿轮盘外侧壁上的齿啮合，所述斜齿轮盘的中心孔套于升降螺杆上，且所述斜齿轮盘的中心孔上设有与升降螺杆外侧壁上的外螺纹相配合的螺纹凸牙，升降螺杆的顶部与镜面的浮动板连接。由此通过蜗杆、斜齿轮盘、升降螺杆的传动实现镜面随浮动板翻转。进一步地，所述斜齿轮盘上的螺纹凸牙受到升降螺杆上的径向力时可以沿斜齿轮盘的径向扩张或者复位。所以，当镜面翻转至极限位置时升降螺杆的轴向位移受限制，阻力增大，从而使螺纹凸牙沿斜齿轮盘的径向扩张或复位，由此实现了螺纹凸牙持续在升降螺杆的外螺纹的齿之间打滑，最终达到防止镜面翻转超行程的目的。
但是上述现有的调节机构，当螺纹凸牙的复位所需弹力过大时会导致电机负载增大，同时也起不到镜面翻转至极限位置的打滑保护作用，而螺纹凸牙的复位所需弹力过小时，受到风阻或者其他外力作用时，镜面极易发生翻转，导致后视镜失效，尤其在高速路段，此类情况是极其危险的。
另外，所述的调节机构是通过螺纹凸牙在升降螺杆的外螺纹上的齿与齿之间不断的来回扩张与复位的打滑来实现驱动器与镜面传动的脱离的，因此会造成后视镜持续抖动，并伴随着碰撞声，且升降螺杆的外螺纹和斜齿轮盘上的螺纹爪也容易磨损。
发明内容
本发明所要解决的技术问题是：提供一种在镜面翻转至极限位置时可以防止镜面超行程破裂，且能在较大外力作用下不发生镜面翻转的汽车后视镜镜面驱动器双离合打滑装置。
本发明所采取的技术方案是：提供一种汽车后视镜镜面驱动器双离合打滑装置，它包括一端用于与镜面浮动板连接的升降螺杆和套于升降螺杆上且由外部驱动器驱动旋转的斜齿轮盘，所述斜齿轮盘与升降螺杆之间设有套管，套管上端设有沿套管周向分布的多个爪头，全部爪头的下端均与套管固定，全部爪头的自由端位于套管上方，且任意相邻两爪头之间留有用于使爪头的自由端沿套管的径向收拢或者扩张的间隙，各爪头的内侧壁上均分别设有与升降螺杆的外螺纹相配合的凸牙，所述斜齿轮盘与套管紧配合，所述套管上设有用于限制斜齿轮盘轴向运动的限位机构。
采用以上结构后，本发明的汽车后视镜镜面驱动器双离合打滑装置与现有技术相比具有以下优点：首先，通过套管与斜齿轮盘的紧配合，可以当镜面翻转至极限位置时起到很好的打滑效果，防止镜面超行程，同时又不会由于套管与斜齿轮盘的打滑而导致镜面抖动，以及齿与齿传动带来的碰撞等问题，其次，通过套管上的凸牙和升降螺杆配合，可以起到带动镜面翻转的效果，同时当需要进行手动调节时，可以通过施加较大的力时凸牙与升降螺纹上的齿打滑，最终实现了多级打滑控制。
作为优选，所述限位机构是指，所述套管上设有一带有环形斜面的环形凸缘，所述斜齿轮盘近环形凸缘的一端设有与环形斜面相配合的斜面，所述套管上位于斜齿轮盘背离环形凸缘的一端设有压紧弹簧，所述压紧弹簧的一端与斜齿轮盘背离环形凸缘的一端相抵靠，压紧弹簧的另一端与固定于套管上的卡扣相抵靠。。
作为优选，所述套管上设有一弹性紧固圈，所述弹性紧固圈的内侧壁与全部爪头的外侧壁贴合。
附图说明
图1是本发明的汽车后视镜镜面驱动器双离合打滑装置的结构示意图。
图2是本发明的汽车后视镜镜面驱动器双离合打滑装置的爆炸视图。
其中，1、升降螺杆，2、斜齿轮盘，3、套管，3.1、环形凸缘，4、爪头，4.1、凸牙，5、压紧弹簧，6、卡扣，7、弹性紧固圈。
具体实施方式
下面结合附图和具体实施方式对本发明作进一步说明。
如图所示，本发明提供一种汽车后视镜镜面驱动器双离合打滑装置，它包括一端用于 与镜面浮动板连接的升降螺杆1和套于升降螺杆1上且由外部驱动器驱动旋转的斜齿轮盘2，所述斜齿轮盘2与升降螺杆1之间设有套管3，套管3一端设有沿套管3轴线的周向分布的多个爪头4。作为优选，全部爪头4沿套管3轴线的周向均匀分布。全部爪头4的下端均与套管3固定，全部爪头4的自由端位于套管3上方，且任意相邻两爪头4之间留有用于使爪头4的自由端沿套管3的径向收拢或者扩张的间隙，各爪头4的内侧壁上均分别设有与升降螺杆1的外螺纹相配合的凸牙4.1。也就是说，当人为的去拨动镜面时，所述升降螺杆1受到轴向的推力，其传动到爪头4的凸牙4.1上转变为对于爪头4的沿升降螺杆1径向力，由此驱使全部爪头4扩张，当该径向力持续增大而导致爪头4扩张到极限位置时，凸牙4.1与升降螺杆1上的螺纹齿打滑，由此升降螺杆1的轴向运动不会影响到斜齿轮盘2和套管3的转动。具体地，可以作为外部驱动电机不工作下的手动调节机构。
所述斜齿轮盘2与套管3紧配合，所述套管3上设有用于限制斜齿轮盘2轴向运动的限位机构。具体地，当外部驱动器带动斜齿轮盘2转动时，在斜齿轮盘2与套管3的静摩擦力的作用下套管3随斜齿轮盘2转动，由此带动升降螺杆1实现轴向运动，而当升降螺杆1轴向运动至极限位置时，即镜面翻转到极限位置而导致升降螺杆受到较大的轴向阻力时，套管3与斜齿轮盘2之间的静摩擦力不足以克服持续增大的阻力，因此实现斜齿轮盘2与套管3打滑，从而保护镜面。因此，上述的紧配合是指，套管3的外侧壁与斜齿轮盘2的内侧壁过盈配合，且当扭矩达到极限值时驱动套管3和斜齿轮盘2相对转动打滑，即上述的紧配合并非指完全紧固连接，而是指二者之间有一定的涨紧力从而产生一定的最大静摩擦力。
所述限位机构是指，所述套管3上设有一带有环形斜面的环形凸缘3.1，所述斜齿轮盘2近环形凸缘3.1的一端设有与环形斜面相配合的斜面，所述套管3上位于斜齿轮盘2背离环形凸缘3.1的一端设有压紧弹簧5，所述压紧弹簧5的一端与斜齿轮盘2背离环形凸缘3.1的一端相抵靠，压紧弹簧5的另一端与固定于套管3上的卡扣6相抵靠。
所述套管3上设有一弹性紧固圈7，所述弹性紧固圈7的内侧壁与全部爪头4的外侧壁贴合。具体地，所述全部爪头4围绕成环形，所述弹性紧固圈7套箍于爪头4，从而增加爪头4复位的弹力，增加了爪头4打滑所能承受的最大径向力。
驱动器调节镜面翻转的打滑工作原理是，首先，外部驱动器的蜗杆与斜齿轮盘啮合，从而带动斜齿轮盘转动，然后通过斜齿轮盘与套管的静摩擦力带动套管转动，再然后通过套管上的凸牙与升降螺杆上的外螺纹进行螺纹配合，实现升降螺杆沿轴向移动，最终，由升降螺杆头部的球形接头与镜面浮动板铰接，通过升降螺杆顶住镜面浮动板单侧，使镜面 浮动板翻转。在此过程中，当运行至镜面浮动板翻转的极限位置时，升降螺杆上的轴向阻力增大，导致套管转动所需的扭矩增大，所述斜齿轮盘与套管之间的静摩擦力不足以提供套管转动的扭矩，最终使斜齿轮盘与套管打滑，起到保护作用。而本发明中的爪头的张紧力大于斜齿轮盘与套管之间的最大静摩擦力，因此驱动器工作过程中，镜面翻转到极限位置的打滑机构会优先触发斜齿轮盘与套管打滑，而不会造成爪头上的凸牙与升降螺杆上的螺纹齿打滑。因此，正常行车过程中，作用于镜面上的风阻力或者其他外力也不会由于斜齿轮盘与套管之间的最大静摩擦力过小而造成镜面翻转。可靠性更加的基础上驱动器负载也可以设置的更小。
而手动调节镜面翻转的工作原理是，通过人员提供较大的翻转力作用于镜面上，使升降螺杆受到较大的轴向力，由此驱使套管上的爪头扩张，使爪头上的凸牙持续的在升降螺杆上打滑，即凸牙沿升降螺杆的径向往复扩张和复位，在升降螺杆的齿的齿顶和齿根之间滑动。而在这一过程中，轴向的压力提供了斜齿轮盘上的斜面较大的压力，因此，此时的斜齿轮盘与套管的最大静摩擦力在升降螺杆轴向压力的作用下增大，故，斜齿轮盘和套管相对固定，并且与驱动器的输出轴抱死。
另外，为了防止手动调节镜面翻转过程中，套管的转动，所述的套管上的凸牙和升降螺杆上的螺纹可以选用自锁螺纹。
以上就本发明较佳的实施例作了说明，但不能理解为是对权利要求的限制。本发明不仅局限于以上实施例，其具体结构允许有变化，凡在本发明独立要求的保护范围内所作的各种变化均在本发明的保护范围内。

Claims (3)

  1. 一种汽车后视镜镜面驱动器双离合打滑装置，它包括一端用于与镜面浮动板连接的升降螺杆(1)和套于升降螺杆(1)上且由外部驱动器驱动旋转的斜齿轮盘(2)，其特征在于：所述斜齿轮盘(2)与升降螺杆(1)之间设有套管(3)，套管(3)上端设有沿套管(3)周向分布的多个爪头(4)，全部爪头(4)的下端均与套管(3)固定，任意相邻两爪头(4)之间留有用于使爪头(4)的自由端沿套管(3)的径向收拢或者扩张的间隙，各爪头(4)的内侧壁上均分别设有与升降螺杆(1)的外螺纹相配合的凸牙(4.1)，所述斜齿轮盘(2)与套管(3)紧配合，所述套管(3)上设有用于限制斜齿轮盘(2)轴向运动的限位机构。
  2. 根据权利要求1所述的汽车后视镜镜面驱动器双离合打滑装置，其特征在于：所述限位机构是指，所述套管(3)上设有一带有环形斜面的环形凸缘(3.1)，所述斜齿轮盘(2)近环形凸缘(3.1)的一端设有与环形斜面相配合的斜面，所述套管(3)上位于斜齿轮盘(2)背离环形凸缘(3.1)的一端设有压紧弹簧(5)，所述压紧弹簧(5)的一端与斜齿轮盘(2)背离环形凸缘(3.1)的一端相抵靠，压紧弹簧(5)的另一端与固定于套管(3)上的卡扣(6)相抵靠。
  3. 根据权利要求1所述的汽车后视镜镜面驱动器双离合打滑装置，其特征在于：所述套管(3)上设有一弹性紧固圈(7)，所述弹性紧固圈(7)的内侧壁与全部爪头(4)的外侧壁贴合。
PCT/CN2016/073423 2015-02-13 2016-02-04 汽车后视镜镜面驱动器双离合打滑装置 WO2016127901A1 (zh)

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