Synchronous Protective Cage for Barrel Drilling Machines
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Solution Overview
Problem
Current protective cages for barrel drilling machines are cumbersome and prevent human intervention during drilling operations, requiring a drilling machine to switch to a reduced operating mode, which increases operation duration and limits access for maintenance.
Innovation Solution
A protective cage system that moves synchronously with the barrel, allowing it to surround the drilling zone only when necessary, maintaining contact through a wheel and spring mechanism, enabling continuous protection without hindering maintenance access and operation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a protective cage surrounds the barrel and drilling zone, then safety is improved, but access for maintenance operations is blocked
Solution Approach 1:
The protective cage is designed with movable parts that allow it to dynamically adjust its configuration. Specifically, the cage can open or retract to provide access to the barrel for maintenance operations, then close to provide protection during drilling operations. This dynamic behavior resolves the contradiction by making the protection temporary and conditional rather than permanent and fixed.
2Reliability
If a fixed protective cage is used, then safety is ensured, but the cage becomes cumbersome and increases footprint
Solution Approach 1:
The protective cage is divided into multiple segments or modular parts rather than being a single fixed structure. This segmentation allows individual sections to move independently, enabling the cage to open for maintenance access while maintaining protection in other areas. It also simplifies the overall structure by allowing parts to be removed or reconfigured as needed.
3Ease of operation
If the drilling machine operates in reduced operating mode to allow intervention, then access is permitted, but operation duration increases
Solution Approach 1:
The protective cage is designed to periodically open and close based on operational needs. During normal drilling operations, the cage remains closed for protection. When maintenance or intervention is required, the cage opens temporarily, allowing operators to access the barrel without requiring the drilling machine to switch to reduced operating mode. This periodic action maintains both safety and productivity.
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
Ensures safe operation by allowing maintenance access during drilling without slowing down the machine, reducing the cage's size and footprint, and enabling easy installation on existing machines to meet safety standards.
Implementation Method 1
maintaining contact through a wheel and spring mechanism
Data Source
AI summary
The invention relates to a protective cage (2) for a drum drilling machine, the drum drilling machine comprising a frame, a drill head rotating about a predetermined drilling axis (A), and a drum (10) mounted movable relative to the frame between a first position and a second position. The cage (2) includes at least one movable part (14) configured to move relative to the frame when the drum (10) moves between the first and second positions, and, when the drum (10) is in at least one of said first and second positions, the cage (2) is configured to surround, together with at least the drum (10), the drilling axis (A).