一种适用于深部钻探的井下动力钻具
By introducing structures such as plug blocks, plug sleeves, and limit balls into downhole power drilling tools, the problem of unstable connection between drill pipe and drive shaft has been solved, enabling quick assembly and disassembly and stable connection, and improving maintenance efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI COALBED METHANE DEV CO LTD
- Filing Date
- 2025-09-22
- Publication Date
- 2026-07-17
AI Technical Summary
In existing downhole power drilling tools, the connection between the drill pipe and the drive shaft is a threaded connection, which results in poor installation stability. It requires auxiliary tools to tighten and loosen, which is time-consuming, labor-intensive, and inconvenient for maintenance.
The design employs a plug-in block, plug-in sleeve, limit ball, and limit assembly. Through the plug-in engagement of the plug-in block and the plug-in sleeve, and utilizing the elastic reset characteristics of the limit ball and spring, combined with the threaded connection between the drive ring and the round shaft, the plug-in sleeve and the plug-in block are stably fixed.
It enables quick disassembly and secure connection between the drill rod and the motor output shaft, improving the convenience and stability of installation and facilitating personnel maintenance.
Smart Images
Figure CN224515134U_ABST