A device for measuring the specific pressure of the top and bottom plates of a hydraulic support
A hydraulic support and measuring device technology, which is applied in the direction of measuring devices, elastic testing, mechanical parts testing, etc., can solve the problems of poor data accuracy of the device and the inability to directly measure the deformation, so as to improve work efficiency and save repeated pad replacement The flow of blocks, the effect of improving the quality of measurement data
Active Publication Date: 2021-05-04
TIANDI SCI & TECH CO LTD +1
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Problems solved by technology
[0003] In order to overcome the deficiencies of the above-mentioned prior art, the present invention provides a specific pressure measuring device for the top and bottom plates of the hydraulic support, which is used to solve the problem of poor data accuracy of the existing detection methods and devices and the inability to directly measure the deformation
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[0012] The present invention will be further described below in conjunction with the accompanying drawings.
[0013] Such as figure 1 , figure 2 with image 3 As shown, a hydraulic support top and bottom plate specific pressure measuring device of the present invention includes a top beam loading frame 4, a base loading frame 6 and a loading frame hydraulic control system, and the hydraulic support to be tested is placed in a hydraulic support test bench to form a hydraulic support together Top and bottom plate specific pressure measurement system. The top beam loading frame 4 and the base loading frame 6 have a built-in jack 5, the jack 5 is composed of an outer cylinder 5-1, a piston 5-2 and a column cap 5-3, and the top beam loading frame 4 is placed on the test bench platform 7 and Between the hydraulic support top beams 1, the column cap 5-3 is in contact with the hydraulic support top beam, the base loading frame is placed between the lower platform 8 of the test ben...
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The invention discloses a hydraulic support test device, in particular to a measuring device for the pressure characteristics of the top and bottom plates of the hydraulic support, which is used to improve the accuracy of the specific pressure measurement of the top and bottom plates of the hydraulic support and the efficiency of the pressure frame test. A top beam loading frame and a base loading frame are added to the existing hydraulic support loading test bench to simulate the elastic contact state of the top and bottom plates, and a hydraulic control system for the loading frame is configured. The jacks are arranged in a symmetrical array in the loading frame, and the piston rods of the jacks are hinged to the column caps to ensure equal pressure and effective initial contact with the top beam and the base. The invention can intuitively measure the specific pressure state of the top and bottom plates and the deformation law of the top beam and the base, and calculate the stiffness characteristics of each point. Each jack can be controlled independently to simulate the loading state of different cushion blocks of the hydraulic support. The invention significantly improves the accuracy and efficiency of the specific pressure measurement of the top and bottom plates of the hydraulic support, and provides a new method and device for the specific pressure measurement of the top and bottom plates of the hydraulic support test.
Description
technical field [0001] The invention relates to a hydraulic support test device, in particular to a measuring device for the pressure characteristics of the top and bottom plates of a hydraulic support. Background technique [0002] The hydraulic support is one of the main equipments of the fully mechanized coal mining face. It is used to control the surrounding rock of the roof and floor, to block the gangue falling from the goaf at the back, to provide a safe and effective working space for the shearer and the conveyor, and to move the scraping Board conveyor. The specific pressure distribution of the top and bottom plates of the hydraulic support is of great significance for guiding the design of the hydraulic support, determining the position of the resultant force, calculating the deformation of the top beam and evaluating the adaptability of the hydraulic support. In order to simulate the characteristics of the surrounding rock of the roof and floor, the traditional s...
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IPC IPC(8): G01M13/00G01M5/00
CPCG01M5/005G01M13/00
Inventor 张德生王国法徐亚军王彪谋李明忠任怀伟李丁一李提建
Owner TIANDI SCI & TECH CO LTD