Drill String Clamp Jaw Adapters With Quick-Lock Exchange
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Solution Overview
Problem
Existing clamping head arrangements for drill strings require manual replacement of adapter elements when changing drill string diameters, which is time-consuming and inefficient.
Innovation Solution
A clamping head arrangement with detachable adapter elements locked by an actuable locking device, featuring a locking element that can be adjusted between locking and release positions, allowing for quick and efficient exchange of adapter elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex connecting devices like screws are used to mount adapter elements, then the connection is secure and reliable, but the replacement process becomes time-consuming and labor-intensive
Solution Approach 1:
The adapter element is divided into a modular design with a separate locking mechanism that can be independently actuated. The locking element is segmented from the adapter body, allowing it to be moved independently between locked and unlocked positions without requiring complete disassembly of the connection system.
Solution Approach 2:
The locking device transitions from a static screwed connection to a dynamic system where the locking element can be quickly moved between positions. The pre-tensioning device provides continuous dynamic force to maintain the locked position, while allowing rapid transition to unlocked position for quick replacement.
2Strength
If manual screwing operations are required for adapter element replacement, then the connection can be securely fastened, but the operational complexity and manual effort increase significantly
Solution Approach 1:
The traditional mechanical screwing operation is replaced with a simpler locking mechanism actuated by a locking element. The pre-tensioning device provides the necessary mechanical force automatically, eliminating the need for manual screwing operations while maintaining secure fastening.
Solution Approach 2:
The pre-tensioning device automatically applies and maintains the necessary fastening force on the locking element. The system serves itself by maintaining pre-tension without requiring continuous manual intervention, while allowing easy release when needed for replacement.
3Stability of the object's composition
If adapter elements are permanently fixed on the clamping jaw base, then the structural integrity is maintained, but the adaptability to different drill pipe diameters is reduced
Solution Approach 1:
The adapter element is designed as a separable component with distinct functional segments: the adapter body that contacts the drill pipe and the locking interface. This segmentation allows the adapter to be securely mounted yet easily replaced by actuating the locking element without compromising structural integrity during operation.
Solution Approach 2:
The connection between adapter element and clamping jaw base transitions from a static permanent fix to a dynamic system that can switch between locked and unlocked states. The pre-tensioning device maintains structural integrity during the locked state while enabling quick transitions to the unlocked state for replacement.
Data Source
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AI summary
The invention relates to a clamping head arrangement for clamping a drill string element with a clamping head base, at least one clamping jaw body which is radially adjustable on the clamping head base between a clamping position and a release position relative to the drill string element, and at least one adapter element on the clamping jaw body, wherein the adapter element is adapted to a shape of the drill string element to be clamped and is designed to rest against the drill string element in the clamping position and to clamp it.According to the invention, the adapter element is detachably arranged on the clamping jaw base body and can be locked by means of an actuable locking device, and the locking device has at least one locking element which is adjustable between a locking position in which the adapter element is locked and fixed to the clamping jaw base body, and a release position in which the adapter element is released and removable from the clamping jaw base body.