An electronically controlled telescopic drilling tool for hydraulic mining of boreholes
A technology of electric control and drilling tools, which is applied in hydraulic mining, earth square drilling, drilling with liquid/gas jet, etc. It can solve problems such as the decline of rock breaking ability and the reduction of water jet speed of fixed water guns, so as to improve production efficiency, Stable opening and retracting action, increased range effect
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[0025] see figure 1 , figure 2 , image 3 , Figure 4 and Figure 5 As shown, it is an embodiment of the present invention, which is composed of a high-pressure water delivery system, a power transmission system, a water gun arm expansion system and a slag discharge channel;
[0026] The high-pressure water delivery system includes a top cover 1, a water gun outer tube 2, a water gun bracket 21, a water gun arm 5 and a nozzle 23, wherein the top cover 1 and the water gun outer tube 2 are sealed and connected by screws, and the lower end of the top cover 1 is arranged on the water gun outer tube 2 above the inner step, the water gun bracket 21 is arranged in the water gun outer tube 2 and is sealed and connected with the water gun outer tube 2, and the upper end of the water gun bracket 21 is arranged on the inner step of the water gun outer tube 2; the water gun bracket 21 lower end and the water gun arm 5 are Rotatable high-pressure sealing connection, the lower end of t...
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