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Transmission mechanism

A technology of transmission mechanism and rotating pair, which is applied in the direction of power control mechanism, transmission device, control mechanism of wing fan, etc., can solve the problems of complex action, slow closing speed, separate locking mechanism, etc. The effect of improving and reducing maintenance costs

Inactive Publication Date: 2013-09-04
JIANGSU YABAO AUTO PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the defects of slow closing speed, separate locking mechanism and complicated action of the existing electronically controlled electric vehicle door, the purpose of the present invention is to provide a transmission mechanism with increased pitch (lead) and strong locking ability, forming a more Advanced, reasonable, safe and perfect door system

Method used

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  • Transmission mechanism

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Embodiment Construction

[0010] Depend on figure 1 Known, a kind of transmission mechanism comprises a screw pair, a rotating pair and a cylindrical pair, the axis of the spiral pair is perpendicular to the axis of the rotating pair, and the axes of the rotating pair and the cylindrical pair are parallel to each other; the rotating pair includes a bracket 7, and the moving slider 5. The screw pair 3, the nut 4, the left limit block 1 and the right limit block 6, the left limit block 1 and the right limit block 6 are fixed on the bracket 7, and the screw pair 7 is fixed on the left and right limit blocks through the bearing 2 In the shaft hole of the bit block, the screw pair 7 is provided with a moving slider 5, and the screw pair 3 installed on the bracket 7 can form an angle of 0-180° with the rotating pair by moving the slider 5. The screw pair 3 can also be a precision high-speed ball screw pair. The moving slider 5 connects the screw pair 3 and the rotating pair, and the rotating pair and the cy...

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Abstract

A three-freedom-degree transmission mechanism comprises a helical pair, a revolute pair and a cylindrical pair. The axis of the helical pair is perpendicular to the axis of the revolute pair, and the axis of the revolute pair is parallel to the axis of the cylindrical pair. The revolute pair comprises a support (7), a movable sliding block (5), the helical pair (3), a nut (4), a left limiting block (1) and a right limiting block (6). The left limiting block (1) and the right limiting block (6) are fixedly arranged on the support (7), and the helical pair (3) is provided with the movable sliding block (5). The transmission mechanism is characterized in that the helical pair (3) mounted on the support (7) and the revolute pair can form 0-degree to 180-degree intersection angles through the movable sliding block (5). According to the transmission mechanism, under the condition of identical number of rotation of a screw rod, the speed of the straight line motion (opening and closing) of the nut (a door leaf) is improved. The mechanical locking of a vehicle door is achieved without another set of mechanical locking mechanism. The transmission mechanism is simple, the motion procedures of unlocking and locking are removed, procedure control is simplified, and two fault hazards are eliminated.

Description

technical field [0001] The invention relates to a transmission and guide mechanism and a mechanical locking device of an electrically controlled electric car door, in particular to a mechanical transmission device. Background technique [0002] The screw nut transmission mechanism, the guide mechanism and the mechanical locking device are the three parts of the electronically controlled electric door, which are widely used in railways and urban rail trains. For the existing electronically controlled electric car doors, in order to ensure that the doors are closed firmly, a separate set of mechanical locking mechanisms is provided; in order to ensure safe, stable and low-noise closing, the closing speed is usually controlled at 3-6s. The speed is lower than that of pneumatic doors. The speed (1.5-4.5s) has a significant impact on the speed of passengers getting on and off and the stop time, especially for subway trains with frequent start and stop and large passenger flow. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H25/20E05F15/00E05F15/60
Inventor 赵建林
Owner JIANGSU YABAO AUTO PARTS
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