Hydraulic system and alternating stress fatigue test equipment

A hydraulic system and hydraulic oil tank technology, applied in mechanical equipment, using stable bending force to test material strength, using repeated force/pulse force to test material strength, etc. Control and ensure the effect of stability

Active Publication Date: 2021-11-19
INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The shape of downhole tools for intelligent drilling is mostly slender cylinders, so the measured instruments are slender cylinders. At present, it is not possible to provide an intuitive and accurate way to simulate the working status of drilling tools and drilling tools during downhole drilling. Alternating Stress Fatigue Test Equipment

Method used

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  • Hydraulic system and alternating stress fatigue test equipment
  • Hydraulic system and alternating stress fatigue test equipment
  • Hydraulic system and alternating stress fatigue test equipment

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Embodiment Construction

[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below in conjunction with the drawings of the embodiments of the present application. Apparently, the described embodiments are some of the embodiments of the present application, but not all of them. Based on the described embodiments of the present application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0042] Unless otherwise defined, the technical terms or scientific terms used in the application shall have the ordinary meanings understood by those skilled in the art to which the application belongs. "First", "second" and similar words used in this application do not indicate any order, quantity or importance, but are o...

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Abstract

The invention relates to a hydraulic system and alternating stress fatigue testing equipment, which includes a hydraulic oil tank for storing oil required by the hydraulic system; a first power system, whose input end communicates with the hydraulic oil tank, and the first power system includes a second An output branch and a second output branch, the first output branch communicates with the first oil cylinder mechanism of the deflection loading device, so that the first oil cylinder mechanism drives the measured object clamped by the deflection loading device to drop to the target position; the second The output branch communicates with the first motor mechanism of the deflection loading device, so that the first motor mechanism can lock the object to be measured after it is lowered to the target position; the second power system, its input end communicates with the hydraulic oil tank, and the second power system includes The third output branch, the fourth output branch, the fifth output branch and the sixth output branch; the circuit system, which is respectively connected with the first oil cylinder mechanism, the first motor mechanism, the fourth motor mechanism, the third motor mechanism, The return oil path of the second oil cylinder mechanism and the second motor mechanism is communicated.

Description

technical field [0001] The invention relates to the technical field of drilling and logging instrument testing, in particular to a hydraulic system and alternating stress fatigue testing equipment. Background technique [0002] The intelligent drilling guide system is a relatively advanced drilling and logging tool in the mining field. When working underground, the maximum bending angle is 18° / 30 meters and the maximum speed is 200r / min. In order to verify the environmental adaptability and reliability of the system, Mechanical strength and fatigue life, it is necessary to simulate the working state of drilling and logging instruments and drilling tools in the process of downhole drilling in the laboratory environment, and then judge the drilling and logging instruments and drilling tools (including ordinary mining drilling and logging The indicators of the instrument) are normal, so as to judge its performance stability, reliability and service life. The shape of downhole ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/20G01N3/36G01N3/02G01M13/00F15B11/16F15B11/042F15B11/00
CPCF15B11/003F15B11/042F15B11/16G01M13/00G01N3/02G01N3/20G01N3/36G01N2203/0005G01N2203/0023G01N2203/0048
Inventor 裴仁忠王中兴杜建生郑健何新振薛庆华张浩谦
Owner INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI
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