Drill Rod Support With Self-Centering Socket

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Solution Overview

Problem

Existing drill rod handling systems are inadequate for handling drill rods of different types, such as diamond core and reverse circulation rods, due to differences in weight and thread delicacy, leading to inefficiencies in drilling operations.

Innovation Solution

A drill rod support system with a self-centering socket and clamping mechanism, featuring radially arranged jaws or bands, driven by actuators and biased by springs, allowing for secure central clamping and easy release of drill rods of varying sizes, and a rotatable design for efficient transfer between storage and drilling positions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single handling system is used for all drill rod types, then device complexity is reduced, but handling reliability deteriorates due to inability to accommodate different rod weights and thread delicacy

Engineering Contradiction:
Improvehandling system configurationVSAvoidhandling reliability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The handling system is designed with interchangeable clamping means (jaws or bands) that can accommodate different drill rod types including diamond core rods and reverse circulation rods. The socket is universally configured to receive various rod diameters, and the clamping mechanism can be adjusted or replaced based on rod characteristics, allowing one system to handle multiple rod types reliably without damage

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Productivity

If drill rods are handled frequently during drilling operations, then productivity is improved, but the risk of damage to delicate threads increases

Engineering Contradiction:
Improvedrilling operation efficiencyVSAvoidthread damage
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The clamping means are designed with differentiated contact surfaces: smooth contact surfaces for diamond core rods to protect delicate threads, and potentially different surface treatments or jaw configurations for reverse circulation rods. This localized adaptation of clamping surface properties prevents thread damage while maintaining efficient handling capability

Inventive Principle:
Principle #3Local quality

3Adaptability or versatility

If drill rods of varying sizes are accommodated, then adaptability is improved, but manufacturing precision requirements increase

Engineering Contradiction:
Improverod size accommodationVSAvoidsocket and jaw precision
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The clamping mechanism incorporates movable jaws or bands that can adjust their position dynamically to accommodate different rod diameters. The socket may include adjustable elements or tolerance ranges that allow it to adapt to varying rod sizes without requiring extremely tight manufacturing tolerances, thereby reducing manufacturing precision requirements while maintaining adaptability

Inventive Principle:
Principle #15Dynamics

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 system securely handles and positions drill rods of different sizes with high accuracy, facilitating efficient transfer and alignment with drill strings, reducing misalignment and operational interruptions during drilling.

Implementation Method 1

the clamping means is biased towards its release position by biasing means, so the drive means need only drive the clamping means into its clamping position. In one form, the biasing means comprises a spring device or element.

Methodology Applied
Scientific EffectSpring: Spring

Data Source

PatentUS10450812B2Rod handler improvements
Publication Date: 2019.10.22 SANDVIK INTELLECTUAL PROPERTY AB
  • US10450812B2 patent drawing
  • US10450812B2 patent drawing
  • US10450812B2 patent drawing

AI summary

A handler for drill rods, a drill rod support thereof, a method of operation for the handler, and a drill rig employing the handler and the drill rod support is provided. The drill rod support includes a socket configured to receive a portion of a length of a drill rod, and a clamping device disposed within the socket and movable between clamping and release positions with respect to the drill rod.