The principle diagram of operating system rotarydiggingmachine
At the same time to drill pipe and drill through the pressurized cylinder head transfer pressure, pressure to achieve drilling bit, when filled with muck, the main hoist bit left rotary drilling, host to a certain point of view, open the bit bottom door, everywhere on the muck, Doumen, back drilling locations, decentralization of drill pipe, the drill into the hole again in drilling.
The rig can also be equipped with long spiral drilling, casing, and drive device, pedestal drilling bucket and auxiliary device, underground continuous wall grab, precast pile hammer device, rotary drilling rig main parts from site and working device, rotary drilling rig in enter the working state, the control system through the luffing mechanism of mast angle adjustment the mast and leveling, is able to drill vertical drilling, the power head provides torque to the drill pipe and the drill bit to do rotary cutting;
Rotary drilling machine is also called drilling bucket drilling method, short spiral drill bit and other operating device for dry and wet drilling, and the use of rotary digging, successive soil sampling, repeated cycle operation and drilling as the basic function of the drilling machine.
(1) rotary drilling rig is the soil dust into the drilling bucket by drill pipe and the drill bit rotation and gravity, the soil dust filled with drilling bucket, lifting drill unearthed, so by drilling bucket rotation, soil cut, lifting and unearthed, repeatedly into the hole. According to drilling technology, it is divided into casing drilling method and stable liquid wall drilling method without casing.(2) the rotary drilling rig is mainly composed of operating system, power system, running system and drilling system (guiding column, drill pipe, drilling barrel, long and short spiral rod). Its operating system is mainly controlled by computer and hydraulic transmission. The power system is provided by diesel engine to drill and walk power, and adopts caterpillar type walking system (usually modified by excavator walking system).
