Large-drift-diameter high-pressure rotation joint used for drilling machine
A rotary joint, large-diameter technology, used in drill pipes, drill pipes, drilling equipment, etc., can solve the problems of slow grouting, increase work efficiency, increase flow rate, etc., and achieve fast hole forming speed, smooth slag discharge, and sealing. good performance
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[0025] The present invention will be further described below in conjunction with specific drawings and embodiments.
[0026] The drilling rig proposed by the present invention uses a large-diameter high-pressure rotary joint, such as figure 1 shown, including:
[0027] Socket nut 1, first O-ring 2, connecting pipe 3, gland joint 4, main shaft 5, first gasket 6, oil cup 7, retaining ring 8, key 9, second gasket 10, housing 11 , Lower cover 12, second O-ring 13, first oil seal 14, first bearing 15, nut 17, anti-rotation pin 18, second bearing 19, third bearing 20, second oil seal 21, third O-ring 22. Screw 23, pressure ring 24, V-shaped ring 25, support ring 26;
[0028] The gland joint 4 has two connected joint ends; the two joint ends of the gland joint 4 are approximately vertical;
[0029] The support ring 26, the V-shaped ring 25 and the compression ring 24 are sequentially pressed into the inner step of a joint end of the gland joint 4, the compression ring 24 is locate...
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