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A jig for adjusting the length of a force-measuring rod

A technology of length adjustment and pull rod, which is applied in the field of adjustment fixtures for pitch adjustment connecting rod length of the rotor system of the main blade dynamic balance test bench, which can solve the problems of different distances, inability to achieve accuracy, large errors, etc., and improve efficiency , speed up the measurement time, and ensure the accuracy of the effect

Active Publication Date: 2017-11-28
HARBIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, for the length adjustment with high precision, the precision measuring instrument micrometer is used for measurement to ensure the accuracy of the measurement. The length adjustment of the elastic nut can not achieve very high accuracy through artificial manual adjustment, and there is a large error, which cannot be satisfied. Requirements
And manual adjustment, the distance of each adjustment is different, so only manual adjustment cannot meet the requirements

Method used

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  • A jig for adjusting the length of a force-measuring rod
  • A jig for adjusting the length of a force-measuring rod
  • A jig for adjusting the length of a force-measuring rod

Examples

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Embodiment Construction

[0024] The present invention will be further described in detail below in conjunction with examples, but the embodiments of the present invention are not limited thereto.

[0025] as in the present invention Figure 1-15 , the force measuring rod length adjustment fixture of the present invention comprises a pin (1), a pin shaft (2), a nylon rope (3), a right ear (4), a right ear seat (5), a seat body (6), a left ear ( 7), left lug seat (8), left bolt (9), left washer (10), nut (11), right washer (12), right bolt (13).

[0026] The pin (1) is made of metal, and the pin (1) is a cylinder. A tapered surface is processed at one end of the pin (1) according to a certain angle to facilitate insertion into the mounting hole. Through holes, small at the top and large at the bottom.

[0027] Bearing pin (2) is a metal rod, and it is installed in the big through hole of pin (1), is convenient to pin (1) is rotated. One end of nylon rope (3) is bound in the small through hole of pin ...

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Abstract

The invention discloses a fixture for adjusting the length of a force-measurement pull rod. The fixture comprises a pin (1), a pin shaft (2), a nylon rope (3), a right lug (4), a right lug seat (5), a seat body (6), a left lug (7), a left lug seat (8), a left bolt (9), a left washer (10), a nut (11), a right washer (12) and a right bolt (13). According to the fixture for adjusting the length of the force-measurement pull rod provided by the invention, the problem of accuracy in adjusting the length of the force-measurement pull rod is directly solved, the error is smaller, the efficiency for adjusting the length can be improved, and the measurement time is reduced.

Description

technical field [0001] The invention relates to the field of detection of helicopter main blades, in particular to an adjustment fixture used for adjusting the length of a connecting rod for pitch adjustment of a rotor system of a main blade dynamic balance test bench. Background technique [0002] The pitch adjustment link is connected with the automatic tilter disc and the balance mechanism of the helicopter rotor system, and the pitch adjustment link adjusts the pitch of the propeller hub. The distance between the moving plate of the automatic tilter and the balance mechanism must meet the accuracy requirements, otherwise the force measurement cannot be performed accurately. Therefore, the length of the pitch adjustment connecting rod is a data requiring high precision, and the precision should meet the range of 0.1mm. The pitch adjustment connecting rod is connected by several parts through threads, and the entire length is adjusted through an elastic adjusting screw sl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M1/14
CPCG01M1/14
Inventor 王开通姜志金
Owner HARBIN