A multi-axis variable frequency fatigue test device suitable for manifold pipe fittings

A technology for fatigue testing and pipe fittings, which is applied in the testing of mechanical components, testing of machine/structural components, and measuring devices. It can solve the problems of high motor power requirements, complex frequency modulation, and low accuracy, and achieve reduced motor power requirements. Reduced Power Requirements, Accurately Simulated Effects

Active Publication Date: 2022-07-22
SOUTHWEST PETROLEUM UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a multi-axis frequency conversion fatigue test device suitable for manifold pipe fittings, which solves the technical problems of high motor power demand, complicated frequency modulation and low accuracy of existing fatigue test machines

Method used

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  • A multi-axis variable frequency fatigue test device suitable for manifold pipe fittings
  • A multi-axis variable frequency fatigue test device suitable for manifold pipe fittings
  • A multi-axis variable frequency fatigue test device suitable for manifold pipe fittings

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Embodiment Construction

[0024] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0025] The present invention will be further described below with reference to the accompanying drawings, but the protection scope of the present invention is not limited to the following.

[0026] like Figure 1-4 shown:

[0027] The invention provides a multi-axis variable frequency fatigue test device suitable for manifold pipe fittings, comprising a piston rod 1, a connecting block 2, a connecting rod 3, a connecting rod 5, a frame 11, a guide post 12, a large connecting rod 14...

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Abstract

The invention discloses a multi-axis variable frequency fatigue testing device suitable for manifold pipe fittings, relates to the technical field of multi-axis fatigue testing machines, and solves the problems of higher motor power requirements, complicated frequency regulation and lower accuracy of the existing fatigue testing machines. question. The multi-axis variable frequency fatigue test device suitable for manifold pipe fittings mainly includes a piston rod (1), a connecting block (2), a connecting rod (3), a connecting rod (5), a frame (11), a guide column (12) ), large connecting rod (14) and T-slider (18). The invention is suitable for the multi-axis variable frequency fatigue test of the manifold pipe fittings, the frequency regulation is convenient, the power requirement of the motor is reduced, the experiment efficiency and accuracy are effectively improved, and the actual condition of the manifold pipe fittings bearing multi-axis stress is more accurately simulated.

Description

technical field [0001] The invention relates to the technical field of multi-axis fatigue testing machines, in particular to a multi-axis variable frequency fatigue testing device suitable for manifold pipe fittings. Background technique [0002] Manifold fittings are widely used in the machinery industry, such as manifolds in high-pressure manifolds in petroleum machinery, and intake manifolds in automobile engines. Due to the erosion of the fluid and the vibration transmitted by the equipment in the same system, the manifold will be subjected to cyclic loads, especially multi-axis random loads, and cause fatigue damage during use. According to statistics, the main cause of fracture accidents is fatigue damage caused by fatigue cracks, which can account for 70%-80% of the total number of accidents, and about 90% of mechanical structural failures are fatigue failures. [0003] In the loading direction of uniaxial fatigue experiments, a complete fatigue life evaluation metho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/00G01N3/38G01N3/02
CPCG01M13/00G01N3/38G01N3/02G01N2203/0073
Inventor 董亮亮钟世林杨海覃芳洪玉奎冯星铮王梓齐杨永韬罗伟
Owner SOUTHWEST PETROLEUM UNIV
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