Drill Head Cleaning Apparatus with Anchored Bar
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Solution Overview
Problem
Current methods for removing debris and clay from drill heads during landfill drilling operations often result in excessive wear and fatigue on drill rig components, leading to costly downtime and inefficiencies, as they require significant manipulation and can cause the clean-out tool to rotate with the drill head, transferring torque and potentially getting 'hung up' on debris.
Innovation Solution
A drill head clean out apparatus that utilizes a first bar with a clean out tool positioned on its end, a coupling member to retain the bar, and a second bar with its end positioned within an aperture in the drill rig's base, preventing the clean out tool from rotating with the drill head by anchoring it securely within the base, thus using the drill rig's weight to prevent rotation and avoid torque transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional manipulation methods (shaking, swinging, rotating back and forth) are used to remove debris and clay from the drill head, then some debris may be loosened, but excessive wear and fatigue occur on drill rig components such as the slewing ring and Kelly bar
Solution Approach 1:
The clean out tool is segmented into two separate bars: a first bar that rotates with the drill head and a second bar that remains stationary within an aperture in the drill rig base. This segmentation allows the rotating function and stationary anchoring function to be separated, preventing torque transfer to the drill rig components while maintaining cleaning effectiveness.
Solution Approach 2:
The two-bar structure acts as an intermediary mechanism between the drill head and the drill rig base. The first bar transmits rotation from the drill head, while the second bar anchors to the base through the aperture, mediating the interaction to prevent direct torque transfer and component wear.
2Ease of operation
If the clean out tool is allowed to rotate with the drill head to maintain contact with debris, then cleaning action is maintained, but torque is transferred to the drill rig components causing wear and potential damage
Solution Approach 1:
The clean out tool is divided into a rotating first bar and a stationary second bar. The first bar rotates with the drill head to maintain cleaning action, while the second bar remains stationary in the aperture, blocking torque transfer to the drill rig components.
Solution Approach 2:
The solution moves the anchoring point from the vertical dimension (attached to the rotating drill rig structure) to a fixed horizontal dimension (aperture in the base). This dimensional change allows the clean out tool to rotate vertically while the anchor point remains stationary horizontally, preventing torque transfer.
3Productivity
If abrupt manipulations are used to loosen stuck debris, then some clay may be removed, but significant wear occurs on the slewing ring and other drill rig components
Solution Approach 1:
The stationary second bar is extracted from the rotating system and anchored to the drill rig base through the aperture. This extraction removes the source of torque transfer, allowing debris removal through rotation without the need for abrupt manipulations that cause wear on the sleving ring and other components.
Data Source
AI summary
A drill head clean out device having a clean out tool, a first bar having a first end and a second end, wherein the clean out tool is adapted to be positioned on the first end of the first bar, a coupling member having a first aperture adapted to receive the first bar when the first bar is in a vertical orientation, a second bar having a first end and a second end, wherein the coupling member has a second aperture adapted to receive a first end of the second bar when the second bar is in a horizontal orientation, and wherein the second end of the second bar is adapted to be positioned within an aperture in a base of a drill rig.