Drilling Tool Connection Device with Self-Powered Locking Bolts
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing methods for connecting and disconnecting drill pipes to a top drive in drilling operations are complex, time-consuming, and hazardous due to the need for manual intervention at heights and reliance on pneumatic or hydraulic systems prone to errors and leaks.
Innovation Solution
A device with self-sufficient energy generation, using a hydraulic or pneumatic cylinder actuated by a pump cylinder connected to a pressure vessel, where kinetic energy from the drill pipe insertion is stored and used to operate locking bolts with a spring-prestressed rocker mechanism, eliminating the need for external fluid supply and enabling remote operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual connection methods are used with ladders and telescopic rods, then the connection can be established, but the process becomes time-consuming and dangerous
Solution Approach 1:
The system uses self-sufficient energy generation through a pump cylinder that automatically generates hydraulic pressure during the insertion process itself, eliminating the need for external power sources or complex fluid supply systems. The insertion motion directly drives the pump, which then powers the locking mechanism.
Solution Approach 2:
The patent replaces manual mechanical connection methods with an automated hydraulic locking system. The manual operation of climbing ladders and inserting bolts is substituted by an automated actuator that uses hydraulically actuated locking bolts to secure the connection automatically during insertion.
2Extent of automation
If pneumatic or hydraulic systems are used for automatic connection, then automation is achieved, but the systems become complex and prone to errors and leaks
Solution Approach 1:
The system generates its own hydraulic power during the insertion process through the pump cylinder, eliminating the need for external pneumatic or hydraulic supply systems. This self-sufficient energy generation simplifies the overall system by removing complex fluid supply infrastructure while maintaining automated locking functionality.
Solution Approach 2:
The patent extracts and eliminates the complex rotary union and external fluid supply system from the connection mechanism. By integrating the pump cylinder directly into the connection assembly and using the insertion motion itself to generate power, the system removes the problematic components that caused errors and leaks in previous designs.
3Device complexity
If locking bolts are used without spring prestressing, then the structure is simpler, but accidental disengagement may occur
Solution Approach 1:
The spring element prestresses the locking bolt in the closed position before operation, creating a preliminary counter-force that prevents accidental opening. This preliminary action ensures the locking bolt remains securely engaged during insertion and operation, and the stored elastic energy assists in maintaining the locked state against unintended disengagement forces.
Solution Approach 2:
The spring element acts as a cushioning mechanism that maintains constant contact force on the locking bolt, preventing gaps or loose connections that could lead to accidental disengagement. The spring's elastic properties provide a safety margin that compensates for variations in insertion force and wear over time.
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
This solution simplifies the mechanical connection process, reduces energy requirements, prevents accidental disengagement, and allows safe remote operation, enhancing safety and efficiency by eliminating the need for external energy sources and minimizing the risk of leaks.
Implementation Method 1
The spring element is integrated into the actuator. This achieves a compact design. In a development of the invention, the locking bolts are conical on their end facing away from the rocker. This facilitates the introduction of the respective locking bolt into the respective opening of the drilling tool.
Implementation Method 2
The actuator is formed by a hydraulic or pneumatic cylinder. A mechanically particularly simple construction is hereby made possible.
Implementation Method 3
The actuator is formed by a hydraulic or pneumatic cylinder. A mechanically particularly simple construction is hereby made possible.
Implementation Method 4
The means for self-sufficient energy generation include at least one pump cylinder which is connected to a pressure vessel to which the at least two actuators are connected. This provides an energy store that is simple in design and at the same time robust.
Data Source
Figure 1
Figure 2
Figure 3a~3c
AI summary
The invention relates to a device for connecting a tubular drilling tool to the power rotary head (2) of a drilling device, with a connecting tube (1) and at least two radially arranged locking bolts (33) guided through the connecting tube (1), which engage in a corresponding opening of a drilling tool, wherein at least two actuators (31) are arranged by means of which the at least two locking bolts (33) can be moved, wherein means (41, 42) for autonomous energy generation are arranged by means of which the at least two actuators (31) can be operated.