Device for predicting coal seam rock burst through drilling cutting torque
A technology of rock burst and drilling cuttings, which is applied in mining equipment, earthwork drilling, transportation and packaging, etc., can solve the problems of inconvenient rock burst prediction, increase the physical labor of operators, affect construction, etc., and achieve easy movement and transfer. , Simple structure, reduce the effect of physical labor
Inactive Publication Date: 2020-12-25
SHANDONG PROVINCIAL COAL GEOLOGICAL PLANNING EXPLORATION & RES INST
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[0003] The cuttings torque method is a method for judging the risk of rock burst in coal mines by testing the output torque of the drilling rig to the drill pipe during the drilling process. It has many irreplaceable advantages of traditional methods and is a very developed prediction method. At present, most of the operators are drilling with drilling cuttings equipment. As time goes by, it is easy to increase the physical labor of the operators, affect the construction, and bring inconvenience to the prediction of rock burst
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[0027] When using this device, first push the second push rod 15, and move the device to the position where the cuttings are to be drilled under the rolling of the universal wheel 19, and then control the cuttings device 20 to work through the control box 13 to perform the cuttings operation , when the cuttings height needs to be adjusted, the transmission motor 3 is controlled by the control box 13 to work, and under the cooperation of the sprocket 2 and the chain 4, the screw rod 5 is driven to rotate, and the rotation of the screw rod 5 drives the horizontal plate 6 to move along the screw rod 5, The movement of the horizontal plate 6 drives the cuttings device 20 to move, and then adjusts the height of the cuttings. When the orientation of the cuttings needs to be adjusted, the telescopic rod 12 is controlled by the control box 13 to work. 9 The rotation drives the cuttings device 20 to rotate, and then adjusts the inclination angle of the cuttings device 20 to complete the...
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The invention provides a device for predicting coal seam rock burst through drilling cutting torque, and mainly relates to the technical field of rock burst prediction. The device for predicting the coal seam rock burst through the drilling cutting torque comprises a base, chain wheels are arranged at the four corners of the top face of the base respectively, a transmission motor is arranged belowone chain wheel, the top end of a rotating shaft of the transmission motor is fixedly connected with the bottom face of the corresponding chain wheel, the transmission motor is fixedly connected withthe base, and the other chain wheels are rotationally connected with the base. The four chain wheels are meshed and connected through a chain. The device has the beneficial effects that the device issimple in structure and convenient to operate, the working angle of the drilling cutting device can be adjusted by adjusting stretching and retracting of a telescopic rod, then multidirectional drilling cutting can be conducted, rock burst prediction efficiency is improved, handheld operation of operators is avoided, physical labor of the operators is reduced, meanwhile, universal wheels are arranged, so that the device is convenient to move and transfer, and the flexibility of the device is improved.
Description
technical field [0001] The invention mainly relates to rock burst prediction technology, in particular to a coal seam rock burst prediction device for cuttings torque. Background technique [0002] my country's coal mines are one of the countries with the most severe rock bursts in the world. With the gradual development of mining, the frequency of rock bursts is increasing, and the hazards are also increasing. Rock bursts may cause gas outbursts and gas explosions and other secondary disasters, causing casualties and economic losses, seriously restricting the safe production of coal mines. The problem of accurate prediction and forecasting of rock burst has become an urgent research topic to be solved in the development of deep resources in my country. The occurrence of rock burst is caused by the stress in coal rock exceeding Its ultimate strength, due to the "inducing" factors in the mining process, the coal rock is suddenly damaged, and the strain energy is released instan...
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IPC IPC(8): E21F17/18E21F17/00B62B3/02
CPCE21F17/18E21F17/00B62B3/02
Inventor 黄春慧梁开华苏怀瑞黄兴龙鲁孟胜孙德全
Owner SHANDONG PROVINCIAL COAL GEOLOGICAL PLANNING EXPLORATION & RES INST