Floating Scraper for Rock Drill Feed Beam Debris Removal
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Solution Overview
Problem
Existing rock drilling rigs face challenges in effectively removing drilling cuttings and debris from the feed beam, leading to wear and reduced service life of slide elements.
Innovation Solution
A scraper system for rock drilling units, comprising a scraper element with a floating support bracket and a force element, such as a spring or actuator, to maintain continuous contact with the feed beam, ensuring effective removal of debris and reducing wear on slide elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If no scraper is used on the feed beam, then the structure remains simple, but drilling cuttings and debris accumulate causing wear to slide elements and reducing their service life
Solution Approach 1:
The scraper element is designed with floating support that allows it to automatically follow the contour of the feed beam and maintain contact without complex control systems. The spring element automatically adjusts to variations in the feed beam surface, enabling the scraper to self-regulate its cleaning action without external intervention or complex mechanisms
Solution Approach 2:
The scraper element is designed as a simple, replaceable component made from readily available materials such as polyurethane or polyamide. The bracket provides floating support that allows the scraper element to be easily replaced when worn, without requiring complex adjustment mechanisms or specialized installation procedures
2Adaptability or versatility
If a fixed scraper is used against the feed beam, then cleaning effectiveness is maintained, but the scraper cannot adapt to relative transverse movements between the feed beam and carrier
Solution Approach 1:
The scraper element is mounted with floating support that permits it to move dynamically in response to relative transverse movements between the feed beam and carrier. The spring element provides continuous contact force while allowing the scraper element to adjust its position, maintaining reliable cleaning action despite variations in relative positioning
Solution Approach 2:
The floating support configuration allows the scraper element to change its positional parameters automatically in response to relative movements. The spring element adjusts the contact force and position of the scraper element, enabling it to adapt to varying gaps and angles without losing continuous contact with the feed beam
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
The scraper system effectively extends the service life of slide elements by continuously removing drilling cuttings and debris from the feed beam, while its simple and inexpensive design enhances operational efficiency.
Implementation Method 1
the spring element is arranged between the scraper element and the bracket
Implementation Method 2
the force element is a spring element. In other words, the scraper element is pushed towards the feed beam by means of one or more spring elements
Implementation Method 3
the scraper element removes drilling cuttings and other debris and dirt away
Data Source
AI summary
A scraper, rock drilling unit, and a method of cleaning a feed beam of a rock drilling unit is provided. The scraper includes a scraper element and a bracket mountable to the feed beam. The bracket provides the scraper element with a floating support. There is at least one force element provided for generating a force for moving the scraper element in relation to the bracket.