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A centrifugal force loading device for tail rotor blade sleeve

A technology of loading device and centrifugal force, which is used in the testing of measuring devices, instruments, and mechanical parts, etc., and can solve problems such as inability to load and no test device.

Active Publication Date: 2017-07-07
CHINA HELICOPTER RES & DEV INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there is no similar test device in our country, and this kind of loading cannot be carried out.
No relevant foreign literature was retrieved

Method used

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  • A centrifugal force loading device for tail rotor blade sleeve

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Embodiment Construction

[0009] The present invention will be described in further detail below.

[0010] Such as figure 1 As shown, the present invention is a centrifugal force loading device for a tail rotor cuff, comprising: a spring 1, a spring connecting bolt 2, a spring connecting fork lug 3, a force measuring rod 4, an adjusting rod 5, a handle bearing 6, and a connecting plate 7 , the first bearing connecting bolt 81, the second bearing connecting bolt 82, the paddle sleeve connecting plate 9, the adjusting nut 10, and the middle bearing with a handle 11 are formed, and the two ends of the spring 1 have hooks, one end is fixed by the hook, and the other end The spring connecting bolt 2 is connected with the spring connecting yoke 3, and the force measuring rod 4 is threaded to connect the spring connecting yoke 3 and the adjusting rod 5. By rotating the force measuring rod 4, the centrifugal force applied on the tail rotor blade cuff can be changed. The other end of the adjustment rod 5 has a...

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PUM

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Abstract

A tail rotor blade cuff centrifugal force loading device, belonging to the helicopter tail rotor blade fatigue test technology, is characterized in that it includes a spring, a spring connecting bolt, a spring connecting yoke, a force measuring rod, an adjusting rod, a handle bearing, a connecting plate, Bearing connecting bolts, blade sleeve connecting plate, adjusting nut and intermediate handle bearing, one end of the spring is connected with the spring connecting fork ear, the force measuring rod is connected with the spring connecting fork ear and the adjusting rod through thread, and the adjusting rod and the handle bearing are threaded Connection; There are holes on the connecting plate, and the shank bearing is connected to the connecting plate through the bearing connecting bolt; The paddle sleeve connecting plate is connected, and the centrifugal force of the paddle sleeve can be adjusted by adjusting the nut. The invention simulates the stressed state of the sleeve of the tail rotor blade, applies a test load to the sleeve sleeve through a spring, and achieves the purpose of examining the fatigue performance of the tail rotor blade.

Description

technical field [0001] The invention belongs to the helicopter tail rotor blade fatigue test technology, and relates to the design of a centrifugal force loading device for a helicopter tail rotor blade cuff. Background technique [0002] The tail rotor blade is an important part of the tail rotor. In order to grasp the fatigue performance of the tail rotor blade, it is necessary to carry out fatigue tests on the tail rotor blade on the ground to grasp the fatigue characteristics of the tail rotor blade, and then give the life of the tail rotor blade. Since the tail rotor blade cuff is subjected to centrifugal force from the tail rotor blade when the helicopter is flying, it is necessary to simulate the force state during flight and apply centrifugal force to the tail rotor blade during the fatigue test. [0003] At present, there is no similar test device in our country, and this kind of loading cannot be carried out. No relevant foreign publications were retrieved. Cont...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/00
Inventor 夏国旺蔡明李大海
Owner CHINA HELICOPTER RES & DEV INST
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