A control structure and automatic sample change method for automatic sample change in a closed high-pressure reaction chamber
A high-pressure reaction chamber and automatic sample changing technology, applied in the field of rock mechanics test, can solve the problem of lack of instruments, and achieve the effect of eliminating errors, optimizing analysis and predicting results, and having a high degree of automation
Active Publication Date: 2017-11-10
CHINA THREE GORGES UNIV
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Problems solved by technology
At present, although scholars have conducted a lot of research in this area, the experiments or research based on this strict condition of existence are still blank for the time being, and there is no instrument that can realize this function.
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[0018] Such as figure 1 , figure 2 As shown, a control structure for automatic sample change in a closed high-pressure reaction chamber, including a worktable lifting mechanism, a retainer rotation mechanism, and a retainer positioning mechanism.
[0019] The workbench lifting mechanism includes a lifting rod 3, the top of the lifting rod 3 is provided with a support 4, and the lifting rod 3 is connected to a driving motor, and the driving motor is used to drive the lifting rod 3 to slowly rise and fall in the pressure chamber. The lifting rod 3 is made of high-strength and high-rigidity specific steel, the diameter of the lifting rod 3 is 50 mm, and the diameter of the support 4 is 60 mm.
[0020] The pressure chamber includes an outer layer: a stainless steel tube 15 with an outer diameter of 640 mm and a thickness of 10 mm; an inner layer: an organic glass tube 14 with an outer diameter of 640 mm and a thickness of 20 mm.
[0021] Lifting workbench 2 is installed on the ...
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Abstract
A control structure and automatic sample change method for automatic sample change in a closed high-pressure reaction chamber, including a workbench lifting mechanism, a support plate rotation mechanism, and a support plate positioning mechanism. The workbench lifting mechanism includes a lifting rod, the top of the lifting rod is provided with a support, and the lifting rod is connected to a driving motor. The bearing disc rotation mechanism includes bearing discs distributed in multiple layers, a rotating shaft frame and a rotating shaft control motor, each bearing disc is installed on the rotating shaft frame, the bearing disc can rotate around the rotating shaft frame and the rotating shaft, and the rotating shaft frame and the rotating shaft are fixed together and passed through The rotating shaft is connected with a control motor. Each supporting plate has a plurality of round holes and an opening distributed along the outer circumference, and each round hole is equipped with a platform for placing samples; positioning holes are provided corresponding to the plurality of round holes along the inner circumference of the supporting plate. The plate positioning mechanism includes a first positioning rod fixed on the top of the pressure chamber and a second positioning rod on the bottom. The invention realizes automatic replacement of rock samples for uniaxial or rheological compression tests without interruption and without affecting the water-rock interaction in the pressure chamber.
Description
technical field [0001] The invention relates to the field of rock mechanics tests in civil engineering, in particular to a control structure and an automatic sample changing method in a closed high-pressure reaction chamber. Background technique [0002] Rock mechanics test is an important means to study rock mechanics and engineering, and the key to rock mechanics test is to simulate the real stress state and environment of rock to the greatest extent. In actual engineering practice, a large number of geotechnical engineering problems need to understand the change law and mechanism of mechanical properties of rocks under immersion in various aqueous solutions and chemical solutions. Taking the Three Gorges Dam built and impounded as an example, with the adjustment of the reservoir water level in different seasons, the rocks on the bank of the reservoir continuously undergo water-rock interaction under different pressure conditions. Safety is of great importance. In order ...
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IPC IPC(8): G01N3/02
Inventor 王孔伟常德龙邓华锋李春波李建林胡安龙
Owner CHINA THREE GORGES UNIV