Rock Drilling Rig Positioning Apparatus for Levelling Displacement

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Solution Overview

Problem

The initial positioning of a rock drilling rig at a drilling site is a demanding and time-consuming task due to uneven ground surfaces, which affects the accuracy of drill hole formation as the levelling process changes the position and orientation of the drilling tool.

Innovation Solution

An apparatus that determines the change in orientation of the drilling tool line during levelling, calculates the necessary vertical levelling requirements, and estimates the displacement of the drilling tool line, providing visual user interface guidance to operators to ensure accurate positioning without the need for repositioning or re-levelling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the drilling platform is levelled by lifting it vertically using levelling jacks, then the drilling platform is set to horizontal position, but the position and orientation of the drilling tool change, causing misaiming and requiring time-consuming repositioning

Engineering Contradiction:

Improvehorizontal position of drilling platformVSAvoidpositioning time

Core Design Contradiction:

Stability of the object's compositionVSLoss of time

Solution Approach 1:

The apparatus calculates the estimated displacement of the drilling tool line before the levelling operation is performed. By determining the intersection points of aiming lines and calculating the displacement on a reference plane in advance, the system provides advance information to the operator about where the drill hole will be positioned after levelling, enabling preliminary positioning compensation

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The apparatus provides visual feedback through a user interface that displays the estimated displacement and indicates the correct initial positioning. This feedback loop allows the operator to adjust the initial position based on calculated data, compensating for the upcoming levelling-induced displacement and achieving accurate drill hole positioning without repositioning

Inventive Principle:

Principle #23Feedback

2Stability of the object's composition

If the drilling platform is levelled by lifting it vertically, then the drilling platform achieves horizontal position, but the accuracy of drill hole formation decreases due to changed position and orientation of drilling tool

Engineering Contradiction:

Improvehorizontal position of drilling platformVSAvoiddrill hole position accuracy

Core Design Contradiction:

Stability of the object's compositionVSManufacturing precision

Solution Approach 1:

The apparatus performs preliminary calculation of the estimated displacement caused by levelling before the operation. By calculating intersection points of aiming lines and determining displacement on a reference plane in advance, the system enables the operator to compensate for the displacement by adjusting the initial position, thereby maintaining drill hole accuracy despite the levelling-induced changes

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The visual user interface provides feedback showing the estimated displacement and guidance for correct initial positioning. This feedback mechanism allows the operator to make precise adjustments to the initial position based on calculated data, compensating for the levelling effect and maintaining high drill hole position accuracy

Inventive Principle:

Principle #23Feedback

3Ease of operation

If the operator performs initial positioning manually without displacement calculation, then the positioning process is simple, but the positioning accuracy is low and repositioning is required

Engineering Contradiction:

Improvepositioning operationVSAvoidpositioning accuracy

Core Design Contradiction:

Ease of operationVSManufacturing precision

Solution Approach 1:

The apparatus acts as an intermediary between the operator and the positioning task. It provides calculated data and visual guidance that mediates the positioning process, enabling the operator to achieve accurate positioning without complex manual calculations or trial-and-error adjustments

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The apparatus replaces manual visual estimation and empirical positioning methods with automated calculation and visual display systems. By substituting mechanical/visual estimation with computational geometry and digital visualization, the system significantly improves positioning accuracy while maintaining ease of operation

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS11566470B2Apparatus and method for positioning rock drilling rig

Publication Date: 2023.01.31 SANDVIK MINING & CONSTR OY

AI summary

An apparatus, a method for positioning a rock drilling, and a rock drilling rig is provided. The rock drilling rig includes a mobile drilling platform and a drilling mast connected to the drilling platform. The drilling platform is levelled vertically before initiating drilling. The apparatus determines the needed vertical levelling requirement. The levelling causes displacement of a drilling tool line passing through a drilling tool. The apparatus estimates the displacement and provides aid for the operator to position the drilling platform in order to compensate for the estimated displacement distance.