Movable Transfer Device for Drilling Rod Wear Reduction
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Solution Overview
Problem
Existing drilling apparatuses experience high wear on rod sections and transfer devices due to relative movement during the attachment of new rod sections, particularly when clamping, which complicates the horizontal drilling process.
Innovation Solution
A drilling apparatus design where the transfer device moves jointly with the rod section along its longitudinal axis, reducing wear by eliminating relative movement, and utilizing a fluid cylinder for space-saving integration and efficient operation, along with grippers and rack-and-pinion drives for precise positioning and movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a rod transfer device is used to position rod sections in the drilling rod axis, then the rod sections can be automatically attached to the drilling rod, but high wear occurs on the rod section and transfer device due to relative movement during clamping and positioning
Solution Approach 1:
Instead of moving the rod section through a stationary transfer device, the transfer device is made movable and carries the rod section along with it. This inverts the traditional approach where the workpiece (rod section) moves through the tool (transfer device), and now the tool moves with the workpiece, eliminating harmful relative movement and wear.
Solution Approach 2:
The transfer device is merged with the rod section by making the transfer device movable and carrying the rod section along its longitudinal axis. This combination ensures that both the transfer device and rod section move together as a unit, eliminating relative movement between them during the attachment process and significantly reducing wear.
2Ease of operation
If the rod section is moved towards the free end of the drilling rod through the transfer device, then the rod section can be positioned for attachment, but excessive movement causes high wear on the transfer device mounting
Solution Approach 1:
The conventional approach of moving the rod section through a fixed transfer device is inverted by making the transfer device movable. The transfer device now moves together with the rod section towards the drilling rod, eliminating excessive relative movement and reducing wear on the transfer device mounting.
Solution Approach 2:
The transfer device is designed as a dynamic, movable structure rather than a fixed one. It can move in the direction of the rod section's longitudinal axis and is capable of rotational movement, allowing it to adapt to the positioning requirements while minimizing wear through reduced relative movement.
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 design significantly reduces wear on rod sections and transfer devices, enabling more efficient and precise attachment of rod sections without the need for excessive movement, thus enhancing the durability and reliability of the drilling process.
Implementation Method 1
utilizing a fluid cylinder for space-saving integration and efficient operation
Implementation Method 2
along with grippers and rack-and-pinion drives for precise positioning and movement
Data Source
AI summary
A drilling apparatus includes a drill rig which defines a drilling rod axis, a rod magazine for a plurality of rod sections, and a transfer device for transfer of a rod section from the rod magazine and for transfer of the rod section in the drilling rod axis. The transfer device is hereby constructed to travel in the direction of the longitudinal axis of the rod section in relation to the rod magazine.