Rotary Drill Locking Pin Mechanism for Remote Control
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Solution Overview
Problem
Conventional locking devices for rotary drilling rigs are complex, expensive, and lack effective monitoring, leading to safety issues and increased operational costs due to the need for control lines and manual intervention.
Innovation Solution
A locking device with a sleeve and locking pin system that uses an electric motor and gear unit for lateral movement, combined with a control system and position monitoring, allowing for remote operation and energy self-sufficiency, which enhances safety and reduces complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional locking devices with manual or hydraulic systems are used, then the locking function is achieved, but the device complexity and cost increase due to control lines and control elements
Solution Approach 1:
The patent removes control lines and control elements from the rotary drive, extracting the problematic components that caused complexity and cost issues while maintaining the essential locking function through a simplified mechanical design
Solution Approach 2:
The locking device is designed to be self-actuating through mechanical means, where the locking pin automatically engages and disengages based on the rotation of the tool holder, eliminating the need for external control systems and making the system self-sufficient
2Reliability
If conventional locking devices are used, then the locking function is achieved, but integrated monitoring of the lock becomes very difficult or not possible
Solution Approach 1:
The patent incorporates a sensor that detects the position of the locking pin and provides feedback signals to indicate whether the tool is properly locked or unlocked, enabling integrated monitoring of the locking state without additional complexity
3Reliability
If manual displacement of locking pins is used, then the locking function is achieved, but the operation requires manual intervention and is time-consuming
Solution Approach 1:
The patent replaces manual hydraulic or mechanical displacement systems with an automated sensor-based system that automatically controls the locking pin movement, eliminating manual intervention and improving operational ease
4Ease of operation
If control lines are guided through the rotary drive, then the locking control is achieved, but the device complexity and cost increase
Solution Approach 1:
The patent extracts control lines from the rotary drive path, eliminating the need to route cables through rotating components and thereby reducing device complexity and associated costs while maintaining locking control functionality
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides a reliable, efficient, and safe locking mechanism that reduces operational costs and improves occupational safety by enabling remote control and automatic monitoring of the locking process.
Implementation Method 1
an electric motor (4) and at least one gear unit (5) for rotating the locking pin (9)
Implementation Method 2
at least one gear unit (5) for rotating the locking pin (9)
Data Source
AI summary
A locking device and a locking method are provided for a tool holder of a rotary drilling rig. The locking device includes a sleeve, a locking pin, a movement system, and a control system. The sleeve and the locking pin are configured such that the sleeve engages around the locking pin with a form fit, such that the locking pin can be rotated in the sleeve about the longitudinal axis of the locking pin. As a result, the locking pin can be displaced laterally parallel to the longitudinal axis. The movement system has at least one electric motor and at least one shaft, wherein the shaft effects relative rotation of the sleeve and the locking pin by the force of the electric motor.