A kind of double-bit drilling shearer drill pipe bearing stabilizer
A technology of double drill bit and shearer, which is applied in the direction of drill pipe, earth square drilling, drill pipe, etc., and can solve the problem of no double bit drill shearer, etc.
Inactive Publication Date: 2017-11-21
CHINA UNIV OF MINING & TECH
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Problems solved by technology
However, the double-drill shearer is a new model, and there is no stabilizer for the double-drill shearer, so there is an urgent need for a double-drill shearer drill rod bearing stabilizer
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Embodiment Construction
[0017] An embodiment of the present invention will be further described below in conjunction with accompanying drawing:
[0018] Such as figure 1 As shown, the drill rod bearing stabilizer of the double drill bit drilling type shearer of the present invention mainly consists of a bearing transmission assembly, a coal pillar support assembly, a right-handed drill rod, and a left-handed drill rod;
[0019] The bearing transmission assembly 1 includes a high displacement gear shaft 1-1, an output end 1-2 of the bearing transmission assembly, a bearing transmission box 1-3, an input end 1-4 of the bearing transmission assembly, and a bearing transmission assembly The output end 1-2 and the input end 1-4 of the bearing transmission assembly mesh with the high displacement gear shaft 1-1 through internal splines, and are positioned with jackscrews. There are multiple sets of bearings in the bearing transmission box 1-3, and the bearing transmission The front and rear ends of the bo...
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The utility model relates to a drill rod bearing stabilizer for a double-drill bit drilling coal shearer, which includes a bearing transmission assembly, a coal pillar support assembly and a drill rod. The bearing transmission device is equipped with a high displacement gear shaft and a bearing group. The input end of the bearing transmission assembly at both ends of the bearing transmission box and the output end of the bearing transmission assembly engage with the high displacement gear shaft through internal splines; the output end of the drill pipe and the output end of the bearing transmission assembly The input end of the bearing transmission assembly is connected to realize torque transmission, and the bearing transmission box binds the two drill pipes together, which can prevent the two sets of drilling tools from running off during drilling operations; the coal pillars on the six free surfaces of the bearing transmission box are supported The assembly provides support for the drilling tool, and at the same time, the self-excited vibration of the support spring in the coal pillar support assembly can buffer the pressure of the collapse of the drill hole; the round hole formed by the middle connection part and the cover plate on the bearing transmission box is used to fix the ventilation pipe and water pipe , the present invention is used in conjunction with ordinary drill pipes to effectively solve the problem of drilling tool deviation, prevent the drill hole from collapsing and bury the drilling tool, and improve the efficiency of the drilling operation of the double-drill bit drilling shearer.
Description
technical field [0001] The invention relates to a drill rod bearing stabilizer for a double-drill type coal shearer, which is especially suitable for drilling tool orientation during the drilling process of the double-drill type coal shearer and preventing drilling from collapsing and burying the drill tool. Background technique [0002] Shearer is a commonly used equipment for mining thin and extremely thin coal seams, and it can also be used for pressure relief during the construction of mine roadways with high pressure. In order to prevent the drill pipe from running off or collapsing when the geological conditions are poor when the drilling depth is large, a drill pipe stabilizer is designed in the middle of the drilling tool, and the drill pipe stabilizer can be properly adjusted for drilling. direction, correct the deviation of the drilling tool, and at the same time, it can also play a supporting role when the drilling hole collapses, preventing the collapsed coal and...
Claims
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IPC IPC(8): E21B7/10E21B4/00E21B4/16E21B17/10E21B17/22
Inventor 李建平程舒燕王雁翔鲍建伟王愁杨道龙付林江红祥
Owner CHINA UNIV OF MINING & TECH