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Torsion device used for large horizontal tail shaft torsion fatigue test

A technology of horizontal tail shaft and power device, applied in the direction of measuring device, testing of mechanical parts, testing of machine/structural parts, etc., can solve the problem of narrow selectivity and achieve the effect of low test cost

Active Publication Date: 2014-07-16
青岛苏试海测检测技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] According to the background information, aiming at the problem that the torsional fatigue machines produced on the market have narrow selectivity to samples, the present invention proposes a torsion device for the torsional fatigue test of the horizontal tail shaft

Method used

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  • Torsion device used for large horizontal tail shaft torsion fatigue test
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Embodiment Construction

[0011] The present invention will be further described below in conjunction with the accompanying drawings.

[0012] Such as figure 1 As shown, the present invention is mainly made up of power unit, mechanical transmission device and control system. The power unit is a hydraulic system, which is composed of a hydraulic pump station and pipelines, and the working pressure is selected as 17MPa. The control system is a two-channel coordinated loading system, and the loading waveform is a triangular wave. The mechanical transmission device consists of a load-bearing column (1), a steel wire rope (2), a hydraulic cylinder (3), a servo valve (4), a displacement sensor (5), a connecting rod device (6), a force sensor (7), and a load-bearing device ( 8), test piece fixing device (9), and base (10).

[0013] According to the requirements of the test program, the angle of the hydraulic cylinder (3) is adjusted through the steel wire rope (2). After adjustment, the connecting rod devi...

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Abstract

The invention discloses a torsion device used for a large horizontal tail shaft torsion fatigue test. The device mainly comprises a power device, a mechanical transmission device and a control system. The power device is a hydraulic system, the mechanical transmission device is composed of a bearing column (1), a steel wire rope (2), a hydraulic oil cylinder (3), a servo valve (4), a displacement sensor (5), a connection rod device (6), a force sensor (7), a bearing device (8), a test piece fixing device (9) and a base (10). The control system is a two-channel coordinated loading system. The hydraulic oil cylinder (3) is fixed to the bearing column (1) through the steel wire rope and is connected with the test piece fixing device (9) through the connection rod device (6). The torsion device has the advantages that due to the loading points of a test piece include a point A and a point B, an actuator cylinder with a reasonable tonnage can be selected according to test loading requirements; when stress is exerted on the loading point A and the loading point B, torsion load can be generated, the torsion device capable of completing the large horizontal tail shaft torsion fatigue test is formed; test cost of the device is low and adaptability of specimens is wide.

Description

technical field [0001] The invention relates to a torsion device, in particular to a torsion device for the torsional fatigue test of a horizontal tail shaft, which is used for low cycle and high cycle fatigue tests of a horizontal tail shaft, and belongs to the field of experimental equipment and experimental equipment. Background technique [0002] The main shaft of the horizontal tail is an important structural part connecting the aircraft fuselage and the horizontal tail, and its reliability directly affects the safe use of the aircraft. In one test, the large shaft of the horizontal tail of a certain type of aircraft was completely disconnected between the tapered end and the barrel. Therefore, it is necessary to conduct various tests on the horizontal tail shaft. Among them, the fatigue performance test can provide key data for the fracture of the horizontal tail shaft. It is used to verify whether the service life of the horizontal tail shaft meets the expected desig...

Claims

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Application Information

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IPC IPC(8): G01M13/00
Inventor 杨文鑫
Owner 青岛苏试海测检测技术有限公司
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