Segmented Conveyor Helix for Easier Drill Cuttings Removal
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Solution Overview
Problem
Existing drilling devices face challenges in efficiently transporting cuttings away from the drill head, particularly in handheld power tools, and require costly or complex replacement of worn-out conveyor helix components.
Innovation Solution
A drilling device with a conveyor helix divided into segments allows for easy and quick replacement of individual segments, utilizing plastic material for reduced noise and weight, and positive engagement with the drill body for secure assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the conveyor helix is made as a single complete component, then it provides continuous cutting transport capability, but replacement becomes costly and complex when worn
Solution Approach 1:
The conveyor helix is divided into multiple individual segments that can be replaced independently. Each segment is a separate component that threads onto the drill body shaft, allowing selective replacement of only worn segments rather than the entire conveyor helix assembly.
2Object-affected harmful factors
If the conveyor helix is made of metal material, then it provides durability and strength, but it increases noise and weight
Solution Approach 1:
The material of the conveyor helix segments is changed from metal to plastic. This parameter change reduces both noise and weight while maintaining sufficient durability for the application. The plastic material provides adequate strength for transporting cuttings without the harmful effects of metal.
3Ease of operation
If the conveyor helix segments are tightly connected, then it provides continuous transport surface, but it complicates assembly and disassembly
Solution Approach 1:
The conveyor helix is segmented into discrete sections that thread independently onto the drill body. The segments are positioned adjacently to form a continuous transport surface during operation, but can be easily separated for maintenance or replacement without complex connection mechanisms.
Data Source
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AI summary
The invention relates to a drilling device, comprising a main drill body and a removal helix which extends helically around the main drill body, said removal helix being subdivided into a plurality of juxtaposed removal helix segments.