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A helicopter rotor damper displacement measuring device

A technology for measuring the rotor and displacement of a helicopter, which is applied in the direction of mechanical measuring devices, measuring devices, mechanical devices, etc., to achieve good repeatability

Active Publication Date: 2021-07-23
CHINA HELICOPTER RES & DEV INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this kind of damper displacement measurement method, laser displacement sensors and baffles are often used to measure the relative displacement of the fixed points at both ends of the damper. This method is not suitable for the displacement measurement of disc dampers.

Method used

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  • A helicopter rotor damper displacement measuring device
  • A helicopter rotor damper displacement measuring device
  • A helicopter rotor damper displacement measuring device

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Experimental program
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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] A method for measuring the displacement of a helicopter rotor damper, comprising a push rod type displacement sensor and an installation tool.

[0026] The first T-shaped cassette 32 and the second T-shaped cassette 33 fix the displacement sensor 31 on the mounting bracket 34. The bottoms of the first T-shaped cassette 32 and the second T-shaped cassette 33 are bent and bonded to the displacement sensor 31. A groove is provided, and the ...

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Abstract

The invention belongs to the field of helicopter comprehensive tests and relates to a displacement measuring device for a helicopter rotor damper. The device includes: a mounting bracket, a first cassette, a second cassette, a displacement sensor, and a ram baffle, wherein the mounting bracket is arranged on the damper; the ram baffle is arranged on the rotor; the displacement sensor passes through the first cassette and the ram baffle The two cassettes are fixed on the support; the first cassette and the second cassette respectively fix the two ends of the displacement sensor, and the ejector bar baffle is perpendicular to the measuring end of the displacement sensor. The device is capable of measuring the displacement of disc dampers and helicopter rotors.

Description

technical field [0001] The invention belongs to the field of helicopter comprehensive tests and relates to a displacement measuring device for a helicopter rotor damper. Background technique [0002] The disc type viscoelastic damper 11 is a special structural damper for damping the shimmy motion of the blade. Among them, the damper upper cover plate 12 is fixed on the root of the flexible beam 23 of the support arm through the support rod, and the damper lower cover plate 13 is fixed on the support arm sleeve 22 through bolts. When the propeller drives the support arm to move in the swing direction, due to The sleeve 22 is rigid in the shimmy direction, and will drive the lower cover plate 13 of the damper, so that the upper cover plate 12 and the lower cover plate 13 of the damper generate relative motion along the shimmy direction of the support arm. Measuring the relative motion displacement when the helicopter rotor is running is of great significance to the safety mon...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B21/02B64F5/60
CPCB64F5/60G01B5/0004G01B21/02
Inventor 章猛杨月章华彭苏雁雷少保秦强张文静
Owner CHINA HELICOPTER RES & DEV INST
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