一种气举反循环钻机用钻杆扶正器
By designing a centering structure and a motor-driven stabilizer in the air-lift reverse circulation drilling rig, the problem of collision during drill rod entry was solved, achieving automatic centering and stabilization of the drill rod, improving drill rod insertion efficiency and the lifespan of the stabilizer.
CN224515138UActive Publication Date: 2026-07-17XUZHOU JINGAN HEAVY IND MFG CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XUZHOU JINGAN HEAVY IND MFG CO LTD
- Filing Date
- 2025-09-22
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
In existing technologies, drill pipes are prone to collisions when entering the stabilizer, which affects the lifespan of the stabilizer.
Method used
A drill rod straightener for an air-lift reverse circulation drilling rig was designed. It adopts a centering structure and components such as a guide seat, a straightening cone, and a return spring inside the housing. Through the inclined surface design and the motor-driven positive and negative thread screws, the drill rod can be automatically centered and straightened to avoid collisions.
Benefits of technology
This effectively prevents the drill pipe from bumping against the stabilizer during insertion, improving the drill pipe insertion efficiency and the service life of the stabilizer.
✦ Generated by Eureka AI based on patent content.
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Figure CN224515138U_ABST
Abstract
本实用新型涉及工程机械技术领域，具体涉及一种气举反循环钻机用钻杆扶正器，包括壳体以及壳体内开设的中心孔，壳体的外部固定安装有环形套，且壳体的内部设置有对中结构，对中结构包括环绕分布在壳体内部的四组扶正锥头，壳体的顶部固定安装有顶板，顶板的内部开设中心孔，顶板的顶部两侧均固定安装有安装座，安装座的一侧转动连接有引导座，引导座的一侧转动连接有扶正套，引导座和扶正套之间连接有多组复位弹簧。钻杆先进入引导座一侧的扶正套逐渐移动，当钻杆出现小幅度倾斜时，由于扶正套与引导座之间的复位弹簧设置，引导钻杆逐步向中心孔内部汇集，从而避免钻杆在进入时对扶正器造成磕碰，壳体内的扶正锥头进行对中扶正。
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