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Helicopter flight control soft limiting device

A soft limit, helicopter technology, applied in aircraft, rotorcraft, motor vehicles, etc., can solve the problems of complexity and increase the difficulty of helicopter development, and achieve the effect of improving control safety.

Inactive Publication Date: 2018-12-07
CHINA HELICOPTER RES & DEV INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is much more complicated than the control system of the fixed-wing aircraft to control the elevator, the control stick of the aileron and the pedal device of the rudder, which makes the development of the helicopter more difficult.

Method used

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  • Helicopter flight control soft limiting device
  • Helicopter flight control soft limiting device
  • Helicopter flight control soft limiting device

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Embodiment Construction

[0022] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below ...

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Abstract

The invention provides a helicopter flight control soft limiting device and relates to the field of flight control design. The helicopter flight control soft limiting device comprises a pull rod (2),a sleeve (8), a spring (7) and a stopper (1); a first boss (9) and a second boss (10) are arranged on the pull rod (2); the sleeve (8) is sleeved between the two bosses of the pull rod (2) and extendsin the axis direction of the pull rod from a position close to one end of the second boss (10) to form an annular step (11); and the spring (7) is arranged between the step (11) and the first boss (9). When the pull rod moves to the lower end of the sleeve to be in contact with the stopper, the spring begins to be continuously compressed; and at the moment, a force sense exceeds a normal force sense, a prompting effect on an operator is realized so that a certain soft limiting effect is realized; and therefore, the control safety of a pilot is enhanced.

Description

technical field [0001] The invention belongs to the field of flight control design, and in particular relates to a soft limiter for helicopter flight control. Background technique [0002] The flight control system of the helicopter is mainly composed of the collective distance rod system for controlling the vertical lift, the periodic pitch rod system for controlling the vertical and horizontal directions, and the pedal system for controlling the heading. They control the helicopter by controlling the automatic tilter and then controlling the rotor and tail rotor respectively. This is much more complicated than the control system of the fixed-wing aircraft's control of the elevator, the control stick of the aileron and the pedal device of the control rudder, which makes the development of the helicopter more difficult. [0003] According to each wiring channel, a safe and reliable stroke limiting device should be set, and it should be set near the cockpit control device as...

Claims

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Application Information

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IPC IPC(8): B64C27/56
CPCB64C27/56
Inventor 邹炎彰司丹宜陈宇金万兴云
Owner CHINA HELICOPTER RES & DEV INST