Hydraulic support top and bottom plate pressure comparison measurement device
A technology of hydraulic support and measuring device, which is applied in the direction of measuring device, elastic test, mechanical component test, etc. It 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: 2020-01-03
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 and 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 benc...
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The invention discloses a hydraulic support test device, in particular to a hydraulic support top and bottom plate pressure comparison measurement device, which is used for improving the accuracy of hydraulic support top and bottom plate pressure comparison measurement and the efficiency of a pressure frame test. A top beam loading frame and a base loading frame are added on an existing hydraulicsupport loading test bed and are used for simulating an elastic contact state of top and the bottom plates, and a loading frame hydraulic control system is configured. Jacks are arranged in the loading frame in a symmetrical array mode, and piston rods of the jacks are hinged to column caps, so that pressure-equalizing and effective initial contact with a top beam and a base are ensured. Accordingto the device, a pressure comparison state of the top and bottom plates and deformation rules of the top beam and the base can be intuitively measured, stiffness characteristics of all points are calculated, and the jacks can be independently controlled and used for simulating different cushion block loading states of a hydraulic support. According to the device, the accuracy and efficiency of the hydraulic support top and bottom plate pressure comparison measurement are remarkably improved, and a new method and device are provided for the hydraulic support top and bottom plate pressure comparison measurement.
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