Axially Movable Suction Attachment for Deep-Hole Dust Extraction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing suction-extraction attachments for insert tools are not effectively adaptable to changing drill-hole depths, leading to suboptimal dust collection during drilling operations.
Innovation Solution
The suction-extraction attachment is designed to be axially movable and rotatable, with a bearing unit that allows its position to adjust relative to the insert tool as the drill-hole depth increases, featuring a housing with a front opening and suction-extraction opening that form a transport channel, and includes design elements like cutouts and a contact surface to enhance air flow and prevent tilting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the suction-extraction attachment is made fixed relative to the insert tool, then the device complexity is reduced, but the suction-extraction performance deteriorates as drill-hole depth increases
Solution Approach 1:
The suction-extraction attachment is designed with a bearing unit that enables it to move axially along the insert tool in response to changing drill-hole depths. This dynamic adjustment allows the attachment to maintain optimal suction performance throughout the drilling process without requiring complex active control systems, thus resolving the contradiction between simplicity and adaptability.
2Adaptability or versatility
If the suction-extraction attachment is made axially movable and rotatable via bearing unit, then the suction-extraction performance is improved, but the device complexity increases
Solution Approach 1:
The bearing unit provides passive dynamic adaptability through axial and rotational movement capabilities, allowing the attachment to self-adjust to varying drill depths without requiring active control mechanisms, motors, or sensors, thereby minimizing structural complexity while maximizing adaptability.
Solution Approach 2:
The attachment automatically adjusts its position and orientation through the bearing unit in response to drilling conditions without external control, enabling self-service adaptation that improves performance while avoiding additional complex control systems.
3Productivity
If the front opening is made large to improve dust collection, then the suction-extraction performance is improved, but the attachment stability deteriorates
Solution Approach 1:
The bearing unit creates an asymmetric support structure that provides rotational and axial degrees of freedom while maintaining stability through strategic placement of bearing elements, allowing the front opening to be enlarged for improved dust collection without compromising overall attachment stability.
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 configuration achieves an optimal suction-extraction result with a simple and cost-effective design, ensuring efficient dust collection and preventing the suction-extraction attachment from tilting during drilling operations.
Implementation Method 1
a suction-extraction opening (20) for coupling the suction-extraction attachment (10) to a suction-extraction device (11)
Data Source
AI summary
A suction-extraction attachment for an insertion tool includes a housing, a bearing unit, and a suction-extraction opening. The housing has an end-side opening that is configured to accommodate the insertion tool. The bearing unit is configured to mount the suction-extraction attachment on the insertion tool. The suction-extraction opening is configured to couple the suction-extraction attachment to a suction-extraction device. The end-side opening and the suction-extraction opening form a transporting channel. The suction-extraction attachment is configured to be mounted on the insertion tool via the bearing unit in an axially movable and rotatable manner such that a position of the suction-extraction attachment relative to the insertion tool alters as a drill-hole depth increases.