Construction Machine Wear Assessment via Traveling Vibration
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Solution Overview
Problem
Managers of construction machines face challenges in accurately determining the degree of wear of excavators based solely on operating time, leading to potential inconveniences such as misidentification of physical depreciation.
Innovation Solution
A construction machine equipped with a control apparatus that determines traveling vibration at predetermined timings, using sensors to collect data on the excavator's posture and vibration intensity, allowing for more accurate assessment of wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If operating time is used as the sole basis for assessing wear, then maintenance scheduling is simplified, but measurement precision of wear degree deteriorates
Solution Approach 1:
The patent transitions from using a single parameter (operating time) to multiple parameters (operating time, vibration intensity, posture data) for wear assessment. This allows maintenance scheduling to remain systematic while significantly improving the precision of wear degree measurement through multi-dimensional data collection and analysis.
2Measurement precision
If vibration sensors and posture sensors are added to measure traveling vibration, then measurement precision of wear degree is improved, but device complexity increases
Solution Approach 1:
The control apparatus serves multiple functions: it controls the excavator's operation, collects vibration data from sensors, processes posture information, and generates maintenance recommendations. By making the control apparatus multi-functional, the patent avoids adding separate dedicated systems, thereby improving measurement precision while minimizing the increase in device complexity.
Solution Approach 2:
The patent combines vibration sensors and posture sensors into an integrated monitoring system where data from both sensor types are processed together by the control apparatus. This merging of measurement functions allows for comprehensive wear assessment without the overhead of completely separate systems, balancing measurement precision with device complexity.
Data Source
AI summary
A construction machine includes a lower traveling body; and a control apparatus configured to determine a traveling vibration of the construction machine at each predetermined timing.