一种钻机浮动卸扣装置及其自适应卸扣方法
By designing a floating uncoupling device and an adaptive uncoupling method on the drilling rig, the problems of easy thread damage and excessive torque during drill pipe uncoupling are solved, thus achieving drill pipe protection and service life extension.
CN122190644BActive Publication Date: 2026-07-17CHINA UNIV OF MINING & TECH
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA UNIV OF MINING & TECH
- Filing Date
- 2026-05-12
- Publication Date
- 2026-07-17
Smart Images
Figure CN122190644B_ABST
Abstract
本发明公开一种钻机浮动卸扣装置及其自适应卸扣方法，属于钻探技术领域。包括虎钳支撑座，虎钳支撑座上下设有上虎钳、下虎钳，上虎钳轴向高度固定并通过虎钳卸扣油缸实现旋转和复位；下虎钳与虎钳支撑座之间设有滑移座，下虎钳连接有驱动其沿滑移座上下移动的浮动油缸；卸扣过程中，虎钳卸扣油缸驱动上虎钳绕钻杆轴线旋转卸扣，浮动油缸随着卸扣过程伸展，驱动下虎钳向下移动以抵消钻杆卸扣过程中的钻杆接扣螺纹副轴向滑移行程，上虎钳每转动一圈，浮动油缸就伸出固定的螺距，下虎钳沿滑移座向下移动浮动距离，浮动距离等于所夹持钻杆松螺纹卸扣时的螺纹行程。本发明解决了钻杆螺纹接扣易损坏的问题，有效延长钻杆的使用寿命。
Need to check novelty before this filing date? Find Prior Art