A rock loading oil circuit system and its experimental device

Abstract

The invention discloses a rock loading oil-way system. The rock loading oil-way system comprises an oil tank, wherein the oil tank is communicated with an oil inlet of a third check valve, the third check valve is communicated with a heater, the heater is respectively communicated with a pressurizing cylinder and an oil inlet pump, the oil inlet pump is communicated with a fifth check valve, and the fifth check valve is communicated with a first oil inlet of a multi-way reversing valve; the pressurizing cylinder is communicated with a fourth check valve, and the fourth check valve is communicated with the first oil inlet of the multi-way reversing valve; a first oil outlet of the multi-way reversing valve is communicated with an oil return pump, a second oil outlet is communicated with an oil inlet pipe of a loading cavity, and the top of the loading cavity is communicated with a display apparatus by virtue of a pipeline; the display apparatus is communicated with a first check valve, and the first check valve is communicated with the oil tank; the oil return pump is communicated with one outer connection pipe of a cooler, another outer connection pipe of the cooler is communicated with a second check valve, and the second check valve is communicated with the oil tank; and the oil tank is also communicated with a first pressurizing pump, the first pressurizing pump is communicated with a sixth check valve, and the sixth check valve is communicated with an oil inlet of a first distributor and a second distributor.

Description

technical field [0001] The invention relates to a rock mechanics experiment device, in particular to a rock loading oil circuit system and an experiment device thereof. Background technique [0002] The stress changes of the rock during the mining process are very complicated. Generally, the tensile strength of the test sample can be directly stretched on a stretching machine, and the stress in the circumferential direction needs to be tested by a hollow column torsional shear instrument. However, in the prior art, only unidirectional stress tests, such as axial and radial, can be performed, and there is no device that can test axial and radial forces simultaneously. However, the stress of rock under the ground is very complicated. If only one-way stress test is carried out, it is difficult to restore its real stress situation. big security risk. [0003] In addition, the existing hollow column torsional shear instrument is mainly bonded and fixed to both ends of the sampl...

AI Technical Summary

Problems solved by technology

However, the current heating and cooling recovery system for hydraulic oil is not perfect, and some experimental devices are not even equipped with a cooling system, which causes some high-temperature hydraulic oil to be directly recycled into the oil tank, causing the oil tank to be deformed by heat. Affects devices near fuel tanks

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