The horizontal fixed-item drilling rig is a kind of construction machinery and equipment that paves various underground public facilities (pipelines, cables, etc.) under the condition of no foundation pit excavation. It is widely used in the paving construction of power supply, electric power engineering, communication equipment, natural gas, liquefied gas, engine oil and other pipelines. It is suitable for sand, clay, river pebbles and other regional conditions and can be constructed in most non-rock hard regions in our country. The theory of horizontal directional drilling rig is a new construction technology application that combines the fixed drilling technology of petrochemical industry and the traditional pipeline construction method. It has the characteristics of faster construction speed, high construction accuracy and low cost, and is widely used in the construction of pipeline paving for power supply, liquefied gas, electric power engineering, communication equipment, natural gas, engine oil, etc.

Rotary drilling rig is a kind of construction machinery and equipment suitable for pile-forming operation in foundation engineering. It is mainly suitable for the construction of gravel soil, cohesive soil, textured soil and other soil layers, and is widely used in several foundation and foundation construction such as bored piles, continuous walls, foundation reinforcement, etc. The high power of rotary drilling rig is generally 125 ~ 450kW, the output torque of driving force is 120 ~ 400kN · m, the larger pile diameter can reach 1.5~4m, and the larger hole depth is 60~90m, it can meet the needs of various large and medium-sized basic construction.

This kind of rotary drilling rig generally adopts hydraulic crawler telescopic automobile chassis, automatic take-off and landing folding drill mast, telescopic joint drill pipe, automatic identification and adjustment of vertical angle, digital technology of hole depth, etc. The whole equipment control generally adopts hydraulic machine leading operation and load sensor, which has the advantages of light and comfortable actual operation. The two main and auxiliary hoisting machines can be applied to various conditions of the construction site. This kind of drilling rig cooperates with different drilling equipment. It is suitable for dry test (short spiral) or wet test (rotating bucket) and rock layer (rock sample drilling) piling work. It can also be equipped with long spiral drilling rig, underground continuous wall grab bucket, vibrating pile hammer, etc. to complete various basic functions. It is mainly used in basic construction such as municipal management, bridges, industrial and industrial buildings, ground connecting walls, water conservancy projects, anti-leakage slope protection, etc. Domestic experts pointed out: rotary drilling rig in China in the next two years there is still a very large sales market.

The essence of down-the-hole rock drilling is to make the impactor dive into the hole during the whole drilling process, so as to reduce the kinetic energy damage caused by the impact work transmitted by the drill rod, and then reduce the harm of the hole depth to the drilling quality. Drilling machinery is divided into two categories: air drill and drilling rig. There are also differences between outdoor drilling rig and mine drilling rig. In recent years, overseas famous down-the-hole drilling rig production company has launched a series of new products. The common feature of this machine is that the automation level is getting higher and higher. Some basic functions complete the application of intelligent system iGPS technology in various drilling rigs, complete the precise positioning of telescopic boom, save the time for on-site identification and positioning, optimize the work efficiency, and enable the operator to concentrate on monitoring the drilling process. At the same time, more attention is paid to safety and environmental protection and the improvement of human-machine relations.