What are the classifications of drilling rigs?

 water well drilling rigs

Water well drilling rigs are easy to move, small in size, and high in work efficiency. They are fully hydraulically controlled for lifting, outriggers, lifting, and other processes. Drill pipes can be replaced without stopping the machine. It can meet various geological conditions such as soil, well-drilling sand, and rock pebble layers. Structure, equipped with high-power hydraulic motor, high torque, fast drilling speed. Water well drilling machine is suitable for complex formations such as soil layer, rock layer, pebble layer, cemented pebble layer, etc. Water well drilling rigs are widely used in foundation engineering construction of high-rise buildings, large bridge projects, water conservancy construction, farmland engineering, and other fields. Small water well drilling rigs are suitable for building pile foundations, high-tension line tower pile foundations, dam foundation drilling, drilling water wells, agricultural irrigation wells, and engineering construction holes.

core drilling rig

A core drilling rig is a kind of core drilling equipment, which is mainly used for general survey and exploration of metal and non-metal solid minerals. In addition, it can also be used for engineering geological surveys, hydrogeological surveys, general surveys and exploration of oil and gas fields, and water well drilling. Since core drilling rig machines require relatively complete, non-mixed, and non-flexible formation rock samples, core drilling equipment is all rotary drilling rigs. According to the structure of the drill gyrator, the core drilling machine can be divided into three categories: vertical shaft type, turntable type, and mobile gyrator type.

Down the Hole Drilling

Down the hole drilling is the use of an impactor and a drill bit that submerge into the bottom of the hole to impact and break the rock, so it is called a DTH drilling rig. The working principle of the DTH drilling machine is the same as other rock drills. It has the process of rock drilling and hole formation such as impact, rotation, ballast removal, and propulsion, and it belongs to the percussion rotary drilling. The difference is that the impactor of the DTH drilling machine is mounted on the front end of the drill rod, submerged into the bottom of the hole, and continues to advance as the drill extends. It is widely used in metal mines, hydropower, transportation, building materials, harbors, and national defense projects. Down the hole drilling can drill holes in rocks with medium hardness and above (f≥8).

rotary drilling machine

Rotary drilling machine refers to a construction machine suitable for drilling operations in building foundation engineering. The rotary drilling rig machine is mainly suitable for the construction of sandy soil, cohesive soil, silty soil, and other soil layers. It is widely used in foundation construction such as cast-in-place piles, continuous walls, foundation reinforcement, and other foundations. The rated power of the rotary drilling rig is average. It is 125-450kW, the power output torque is 120-400kN·m, the maximum hole diameter can reach 1.5-4m, and the maximum hole depth is 60-90m, which can meet the requirements of various large-scale foundation constructions. The operation of the rotary drilling rig generally adopts hydraulic pilot control and load sensing, which has the characteristics of light operation and comfortable operation.

anchor drilling machine

Anchor drilling machine is mainly used for sliding wave treatment projects of railways, highways, water conservancy, and hydropower facilities and anchoring works of dangerous rock masses, controlling the displacement of buildings and other high slope rock mass anchoring projects, and anchor drilling rigs are used for the construction of deep foundation pits in cities. Holes for protection and foundation reinforcement works, blasting holes for blasting works, and tunnel pipe shed support holes, etc. Anchor drilling machine has good performance: compact structure, small size, light weight, flexible maneuverability, suitable for working on high slopes and scaffolding; hydraulic power head has a large output torque, strong drilling capacity, and the use of drilling rigs Wide range; the output speed of the power head is continuously variable, and the drilling parameters can be independently selected according to different construction requirements and geological conditions to achieve the best drilling efficiency.