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Used dth drilling machine 120 pneumatic
120 full pneumatic chain rail drilling, only takes hundreds of hours, all original parts, without any hidden maintenance, can take over and work
Down-the-hole drilling rigs can be used for drilling rock anchor cable holes, anchor hole holes, blast holes, grouting holes, etc. in urban construction, railway, highway, river, hydropower and other projects.
1. The down-the-hole drilling rig uses a motor as a turning power through a high-performance reducer; a cylinder is used as the propulsion power. The hydraulic system is omitted, so the mechanical efficiency is high, the cost is low, and the performance is stable.
2, with anti-card protection, when the drilling tool is stuck, the motor is not easy to burn, the reducer is not easy to damage.
3. Light and easy to move. The weight of the DTH rig is less than 500Kg, and it can be decomposed into three pieces.
4, the use of rolling carriage, the track is not easy to wear.
5. The down-the-hole drilling rig adopts semi-automatic dismantling drill pipe, with high working efficiency.
The drilling tool consists of a drill pipe, a ball bit and an impactor. When drilling, use two drill rod adapters to drill. The slewing air supply mechanism is composed of a slewing motor, a slewing reducer, and a slewing device. The rotary reducer is a three-stage cylindrical gear with a closed-type anisotropic member. He uses a screw oiler to automatically lubricate. The air-supply gyrator is composed of a connecting body, a seal, a hollow main shaft, and a drill pipe joint. The pneumatic chuck is used to connect and unload the drill pipe. The hoisting and regulating mechanism is realized by the hoisting motor through the hoisting speed reducer and the hoisting chain, so that the turning mechanism and the drilling tool can perform the lifting action. In the closed chain system, a pressure regulating cylinder and a movable pulley set are installed. During normal work, the movable pulley set is pushed by the piston rod of the pressure regulating cylinder to achieve decompression drilling.