Features:
The rig is suitable for RJP process construction projects. The rotating and reciprocating motion is controlled by the PLC electro-hydraulic system, which can realize automatic operation.
The full hydraulic chuck gyro can pass up to φ114 drill pipe. After replacing the chuck, it can also be used for general jet grouting, anchoring and other process construction.
Compared with the traditional crawler anchoring rig, this type has the following characteristics:
The power head of the drill is through hole hydraulic chuck type. Various kinds of drill rods can be clamped by replacing different chucks, which has good construction versatility.
The power head has a larger transmission ratio and larger torque than the same type of drilling rig, so it can adapt to more complex working conditions.Strong drilling ability: The rotary jet drilling rig can handle various geological conditions, including soft soil, clay, gravel, etc., and has strong drilling ability.
The sliding frame with lifting function can satisfy the maximum lifting height of 3.3m, with a sliding stroke of 1.2m, the construction scope is wider.
4. The crawler chassis is adopted, and the outrigger cylinder stroke , which can be loaded automatically, which is convenient for relocation and transportation.
5. The drilling rig is in machinery. Some functional interfaces are reserved in the hydraulic system, which can be expanded according to the technological requirements of different users.
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Technical parameters:
Rotary jet drilling rig is a kind of drilling rig equipment used for underground construction, mainly used for drilling, cast-in-place pile, underground diaphragm wall and other projects. Rotary jet drilling rig uses the method of rotary jet drilling, by rotating the drill pipe and spraying high-pressure cement slurry or mud at the same time, the soil layer or rock layer is cut and washed to form holes.
Rotary Jet Drilling Machine is mainly composed of drill pipe, drill bit, rotary mechanism, injection system, hydraulic system and control system. The drill pipe rotates the drill bit through a rotating mechanism, while a jet system injects a high-pressure cement slurry or mud into the hole to wash the soil and rock layers. The hydraulic system provides power and controls the operation of the rotary jet drilling rig, and the control system is used to control the working state and parameters of the rotary jet drilling rig.
Rotary jet Drilling Machine has the characteristics of fast drilling speed, high construction efficiency and good drilling quality. It is suitable for drilling under various geological conditions, especially for drilling in hard rock formations and aquifers. In the construction of underground engineering, rotary jet drilling machine is widely used in the fields of foundation pit support, subway tunnel construction, bridge foundation construction and so on.
In short, rotary jet drilling rig is an efficient and multi-functional underground engineering construction equipment, with better drilling effect and construction efficiency, and plays an important role in the construction of underground engineering.
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