Rock Drilling Machine Grouting Feed Path Integration
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Solution Overview
Problem
Existing rock drilling machines require separate feed adaptors for injecting grouting material, which complicates the equipment, reduces efficiency, and dampens the impact pulses needed for effective drilling.
Innovation Solution
Integration of a flushing system within the rock drilling machine that allows for direct feeding of grouting material through a common feed port with flushing fluid, eliminating the need for separate adaptors and enhancing the transmission of impact pulses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If separate feed adaptors are used for injecting grouting material, then the grouting material can be fed to the drilling tool, but the equipment structure becomes complicated and impact pulse transmission is dampened
Solution Approach 1:
The patent combines the grouting material feeding function with the existing flushing system by integrating a feed port into the flushing housing. The grouting material and flushing fluid share common flow paths (first and second flushing feed paths) within the rock drilling machine, eliminating the need for separate feed adaptors and reducing structural complexity while maintaining the ability to feed grouting material effectively
2Ease of operation
If separate feed adaptors are used for injecting grouting material, then the grouting material can be fed to the drilling tool, but the equipment weight increases causing damping of impact pulses
Solution Approach 1:
The patent merges the grouting material feeding function into the existing flushing system structure. By utilizing the flushing housing and existing flushing feed paths, the design eliminates the need for additional heavy feed adaptors. The grouting material is conveyed through the same structural components used for flushing fluid, thereby reducing overall equipment weight and improving impact pulse transmission to the drilling tool
3Ease of operation
If separate feed adaptors are used, then grouting material injection is possible, but drilling efficiency is reduced
Solution Approach 1:
The patent integrates grouting material injection with the flushing system operations. The rock drilling machine can feed both flushing fluid and grouting material through its existing structure without requiring separate adaptation steps. This integration streamlines the drilling process, eliminates time-consuming adaptor changes or adjustments, and improves overall drilling efficiency while maintaining full grouting material injection capability
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 solution simplifies the equipment structure, improves drilling efficiency by reducing weight-related damping, and allows for effective flushing and injection of grouting material without additional components, making the process more durable and efficient.
Implementation Method 1
at least one flushing feed path being in fluid connection with the feed port and configured to convey the grouting material fed to the feed port (18) via the rock drilling machine to a rock drilling tool
Data Source
AI summary
A rock drilling machine, rock drilling rig and method of reinforcing rock surfaces by means of grouting material is provided. The grouting material is fed through the rock drilling machine to a drilling tool connected to the rock drilling machine. The rock drilling machine include a flushing feed path, which is utilized in the feeding of the grouting material.