Drill String Wear Marking for Abrasion Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Construction sites for ram drilling devices often lack the necessary measuring instruments to precisely measure the outer diameter of the housing, leading to undetected wear and potential breakage during use, resulting in equipment loss.
Innovation Solution
A drill string section with visible markings that indicate abrasion, allowing for easy detection of wear without the need for specialized instruments, where the marking changes visibility as the drill string wears down, signaling when replacement is necessary to prevent breakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If measuring instruments are used to precisely measure the outer diameter of the housing, then measurement precision is improved, but device complexity and cost increase
Solution Approach 1:
The patent creates a visual copy or representation of the wear state through markings on the housing surface. Instead of measuring the actual outer diameter with instruments, the markings serve as a simplified visual copy that indicates wear progression, allowing operators to assess housing condition without complex measurement equipment.
Solution Approach 2:
The patent uses simple, inexpensive markings (such as painted lines or surface features) that can be easily applied and observed. These markings are disposable in the sense that they serve their purpose of indicating wear and can be reapplied or replaced without requiring investment in expensive, sophisticated measuring instruments.
2Measurement precision
If measuring instruments are required for wear detection, then measurement precision is improved, but ease of operation deteriorates
Solution Approach 1:
The housing itself provides the measurement function through the markings applied to its surface. The markings are part of the housing structure and automatically indicate wear as the housing wears. This eliminates the need for separate measuring instruments and makes the wear detection self-service, requiring only visual inspection by the operator.
Solution Approach 2:
The patent employs markings that may utilize color or visual contrast to indicate wear states. As the housing undergoes abrasion, the markings change appearance (such as fading, disappearing, or changing pattern), providing intuitive visual feedback to operators without requiring them to operate complex measuring devices.
3Productivity
If the drill string section continues to be used beyond minimum outer diameter, then productivity is improved, but reliability deteriorates
Solution Approach 1:
The markings are applied to the housing in advance, at the beginning of its service life. These markings serve as pre-established indicators that will progressively reveal the housing's wear state. By having the markings in place beforehand, operators can monitor wear accumulation and plan replacement before critical wear levels are reached, preventing breakage while maintaining productivity.
Solution Approach 2:
The markings provide continuous visual feedback about the housing's wear state throughout its service life. As abrasion occurs, the markings change in a predictable manner, giving operators real-time information about the housing's remaining strength and service life. This feedback loop enables proactive replacement decisions that balance productivity with reliability.
Data Source
Figure 1~4
AI summary
The invention relates to a drill string section of a drill string for drilling in the ground, wherein at least one marking is arranged on the outside of the drill string section by means of which abrasion can be detected.