Drill Head With Tapered Suction Box for Ground Removal
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing drill heads face challenges in simplifying and improving the suction system for efficiently removing loosened ground, leading to potential blockages and reduced suction efficiency.
Innovation Solution
The suction system is enhanced by designing an elongate opening region connected to a suction box with a tapered width and increasing height, incorporating deflection regions, nozzles for material deflection and liquefaction, and a replaceable suction box, along with classifying elements and adjustable cutting tools to manage grain size and improve material transportation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional suction system with radial opening and duct is used, then the structure is relatively simple, but the suction rate is insufficient and blockages occur frequently
Solution Approach 1:
The suction box transitions from a two-dimensional radial opening to a three-dimensional chamber with tapered width and increasing height, creating a volumetric suction zone that significantly increases the suction rate while maintaining structural integration with the drill head body
Solution Approach 2:
The replaceable suction box design allows the suction system to be dynamically adapted to different drilling conditions and geological formations, enabling optimization of suction performance without redesigning the entire drill head
2Productivity
If the opening region is made small, then the device structure is compact, but the suction efficiency is reduced and blockages are more likely
Solution Approach 1:
The opening region is extended from a simple radial slot to an elongate structure with significant length, width, and height dimensions, creating a three-dimensional opening that dramatically increases suction efficiency while integrating smoothly with the drill head body geometry
Solution Approach 2:
The elongate opening region is positioned to capture loosened ground immediately as it is excavated by the drilling tools, preventing material accumulation and blockages before they can occur in the suction system
3Productivity
If the suction box has uniform cross-section, then the manufacturing is simpler, but the material transportation and liquefaction are insufficient
Solution Approach 1:
The suction box employs non-uniform cross-sectional dimensions with tapered width and increasing height along its length, creating localized variations in flow velocity and pressure that enhance material transportation and liquefaction efficiency in different regions of the box
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 increases suction rate, reduces blockages, and adapts to different geological conditions, ensuring efficient and reliable material removal.
Implementation Method 1
the ground loosened by the drilling tools in a flow direction is able to be suctioned in the opening region through the opening and into the suction box by the pump
Implementation Method 2
nozzles for material deflection and liquefaction
Data Source
AI summary
A drill head for creating a substantially vertical borehole in the ground, includes a body connected to a rotational drive of a drilling device; drilling tools on the body, for loosening the ground at a working face of the borehole; suctioning elements for leading away the loosened ground, which can be connected to a pump, and the suctioning elements include an opening region on the body and with at least one opening in the region of the drilling tools. The opening region has may have an elongate extent, and is connected to a suction box with an opening for connecting to the pump. The loosened ground can be sucked through the opening into the suction box with the pump. The suction box is tapered in width from the opening toward the connection opening, and that the height of the suction box increases from the opening toward the connection opening.