Technical Bottleneck And Breakthrough of Domestic Rotary Drilling Rig Accessories

Rotary drilling rig plays an important role in the construction of building foundation, but there are many technical bottlenecks in the domestic rotary drilling rig accessories. Through the unremitting efforts of researchers and enterprises, many problems have been overcome. Below, let's understand the bottleneck and breakthrough of domestic rotary drilling rig accessories technology.

1. Low hydraulic system configuration: In the past, foreign high-quality rotary drilling RIGS mostly used constant power or load sensing hydraulic systems, while domestic drilling RIGS were relatively backward in hydraulic system configuration and poor hydraulic component performance, resulting in limited machine operation efficiency. Today, some companies optimize the hydraulic system through technological innovation and cooperation to improve its stability and efficiency.

2. The quality of drill pipe is not up to standard: the roundness and straightness of domestic steel pipe are insufficient, the quality of drill pipe processing and welding is unstable, and it is easy to deform after welding. Sany Heavy Industry cooperated with Hengsteel to develop long-life rotary drilling pipe, which greatly improved the working time of drilling pipe and solved the problem of "stuck neck" of drilling pipe.

3. The quality of filter element is difficult to guarantee: the quality of filter element on the market is uneven, and the use of inferior filter element will damage important parts of the rig. Xugong and other enterprises have launched the original filter element, which has higher filtration capacity and performance, and can provide reliable protection for the drill.

4. Chassis accessories technology is weak: the domestic track chassis technology started late, and the technical content and serialization degree are low. In recent years, with the development of the industry, enterprises have used new technologies and new processes to improve the quality and performance of chassis parts.

5. Unstable bit connection: In high-intensity operation, the connection between the bit and the connecting box is easy to crack. Changzhou Keyi Machinery obtained the patent of "new rotary drilling bit connecting box", which improves the connection stability by optimizing the connection components and can also clean the inside of the drill.

6. Power head box is vulnerable to damage: when rotary drilling rig is operating, the power head box is susceptible to sediment attachment, resulting in rust and corrosion and heat accumulation. Changzhou Keyi Machinery research and development of "a rotary drilling rig power head box sediment prevention mechanism", the use of kinetic energy to achieve sediment prevention effect, to ensure the stable operation of the power head box.

Through the efforts of all parties, domestic rotary drilling rig accessories have achieved technological breakthroughs in a number of key areas. In the future, with the continuous innovation of technology, domestic rotary drilling rig accessories are expected to reach the international advanced level, not only to meet the domestic market demand, but also to occupy a place in the international market.