Reverse-transmission non-return flexible transmission device

A flexible transmission and transmission technology, applied in transmission, transportation and packaging, aircraft accessories, etc., can solve the problems of slippage of single-wedge type backstops and stuck roller type backstops, saving space , the effect of adjustable force and torque

Pending Publication Date: 2022-07-29
BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the roller backstop is prone to sticking, the single wedge backstop is slippery

Method used

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  • Reverse-transmission non-return flexible transmission device
  • Reverse-transmission non-return flexible transmission device
  • Reverse-transmission non-return flexible transmission device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The present invention will be further elaborated below in conjunction with the examples.

[0027] The invention provides a flexible transmission device for reverse transmission and backstop, which can realize long-distance forward transmission control, and the reverse transmission is always in a backstop state.

[0028] Flexible transmission device with reverse transmission and backstop, such as figure 1 As shown, it includes an electric screwdriver 1, a torque limiter 2, an orthogonal transmission device 3, a flexible shaft 4, a backstop 5, an actuator 6 and an aircraft cargo door 7; wherein, the electric screwdriver 1 is placed axially horizontally; The input shaft of the torque limiter 2 is coaxially butted with the output shaft of the electric screwdriver 1; the input shaft of the orthogonal transmission device 3 is coaxially butted with the output shaft of the torque limiter 2; one end of the flexible shaft 4 is connected with the orthogonal transmission device 3. ...

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Abstract

The invention relates to a reverse transmission non-return flexible transmission device, and belongs to the field of mechanical transmission. Comprising an electric screw driver, a torque limiter, an orthogonal transmission device, a flexible shaft, a backstop, an actuator and an aircraft cargo door, wherein the electric screw driver is axially and horizontally arranged; an input shaft of the torque limiter is coaxially butted with an output shaft of the electric screw driver; an input shaft of the orthogonal transmission device is coaxially butted with an output shaft of the torque limiter; one end of the flexible shaft is in butt joint with an output shaft of the orthogonal transmission device, and the other end of the flexible shaft is in butt joint with the backstop. The backstop is connected with the actuator; the actuator is connected with an aircraft cargo hold door; according to the invention, long-distance forward transmission control can be realized, and reverse transmission is always in a non-return state.

Description

technical field [0001] The invention belongs to the field of mechanical transmission, and relates to a flexible transmission device for reverse transmission and backstop. Background technique [0002] The aircraft cargo door actuation system adopts a differential scheme, which is divided into two modes: electric and manual, and a backstop is required in both modes. When in the electric mode and the motor stops rotating, the ball screw rotates due to inertia. In order to ensure that the cargo door does not rotate, the output end of the backstop is friction-locked by the torque, so as to prevent the cargo door from falling and causing injury to personnel; when When in manual mode, the flexible transmission shaft transmits force and torque to the input end of the backstop in both clockwise and counterclockwise directions, and then manually adjusts the opening and closing of the cargo door through the differential and ball screw. Because the roller type backstop is prone to sti...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): B64C1/14B64C1/16F16H37/12
CPCB64C1/1415B64C1/1461B64C1/16F16H37/124
Inventor吴昊聂振金牛光冉王丹阳魏伊王晓露潘哲刘帅
OwnerBEIJING RES INST OF PRECISE MECHATRONICS CONTROLS