RESEARCH PAPER
Wear load analysis of conical cutter crushing rock based on SPH to SPH interaction method
1
Key Laboratory of Road Construction Technology and Equipment of MOE, Chang’an University, China
2
Guangxi Key Laboratory of Manufacturing System & Advanced Manufacturing Technology, Guangxi University, China
Submission date: 2024-06-27
Final revision date: 2024-07-30
Acceptance date: 2024-09-29
Online publication date: 2024-10-07
Publication date: 2024-10-07
Eksploatacja i Niezawodność – Maintenance and Reliability 2025;27(1):193899
HIGHLIGHTS
- A dynamic model for cutter crushing rock is established using SPH-SPH interaction method
- The relationship between the wear and cutting performance factors was analyzed.
- The cutting angle selection reference was given under different consideration factors.
KEYWORDS
TOPICS
ABSTRACT
Wear is the main failure type for conical cutters. The main load causing its wear is difficult to measure in the test, and the existing simulation models cannot simulate the wear load. Thus, the three-dimensional dynamic model for conical cutter crushing rock is established based on the SPH-SPH interaction method to analyze the relationship between the cutting performance factors and cutter wear. The factors are taken into account such as the stress distribution of rock, kinetic energy and internal energy and displacement of rock, cutting load of cutter, stress of cutter. Then, it is studied that the effect of cutting angle on the cutting performance parameters such as specific energy consumption, rock avalanching, cutting load, load fluctuation, cutter tip stress and cutter side stress. Finally, the cutting angle selection reference of the cutter is given under different consideration factors.
ACKNOWLEDGEMENTS
This research is supported by the National Natural Science Foundation of China (52375080) and the Key Research and Development Project in Shaanxi Province(2024GX-YBXM-247), the Guangxi Key Laboratory of Manufacturing System &Advanced Manufacturing Technology (22-35-4-S010).
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