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of 2 280
pro vyhledávání: '"Shearer"'
Christmas Without Tears: Harry Shearer and Judith Owen's Annual show benefits the Innocence Project.
Autor:
Hochman, Steve
Publikováno v:
Offbeat. Dec2023, p1-5. 5p.
Selection of longwall shearers based on the results of research on the mechanical properties of coal
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-11 (2024)
Abstract The proper selection of cutting longwall winning machines for specific mining and geological conditions requires the development of an appropriate algorithm. The appropriate selection of a machine (shearer) is closely related to acquiring a
Externí odkaz:
https://doaj.org/article/6fba6261c6ad40199f1e54c12d87541e
Publikováno v:
Gong-kuang zidonghua, Vol 50, Iss 7, Pp 64-78 (2024)
This paper introduces the current situation of intelligent development of shearer at home and abroad. The shearer is currently developing towards intelligent robotics and is in the primary stage of intelligence. This paper elaborates on the developme
Externí odkaz:
https://doaj.org/article/23a94e19960a4cc7996c7d4c7768eb6e
Constraint optimization of shearer cutting path based on B-spline curve fitting and mayfly algorithm
Publikováno v:
Meitan kexue jishu, Vol 52, Iss S1, Pp 269-279 (2024)
In order to achieve the intelligent height adjustment control of the shearer, the key techniques are the coal-rock interface recognition, cutting path optimization, and shearer height adjustment control. Although the coal-rock interface is accurately
Externí odkaz:
https://doaj.org/article/eb2f633f62d440f8a81f8cb97416d68a
Publikováno v:
Gong-kuang zidonghua, Vol 50, Iss 6, Pp 142-149 (2024)
The health status of the planetary gears in the cutting section of shearer's rocker arm directly affects the cutting efficiency. The strong noise interference caused by multiple impacts during the cutting of coal and rock by the shearer, the complex
Externí odkaz:
https://doaj.org/article/07cd6e6488d74ddb92da8af338aec603
Publikováno v:
Meitan xuebao, Vol 49, Iss 6, Pp 2905-2923 (2024)
Intelligent shearer is a key equipment for a fully mechanized coal mine working face. For intelligent shearers, due to the internal space limitation of flameproof electric control box, there are usually mixed wiring situations with the cables of inte
Externí odkaz:
https://doaj.org/article/99528fc57a1946e4a310ccd60271b0c9
Autor:
LI Zhongzhong, YAO Yupeng
Publikováno v:
Gong-kuang zidonghua, Vol 50, Iss 4, Pp 144-152 (2024)
In order to solve the problem of low precision in drum height adjustment caused by different working conditions during the working process of the shearer, a generation method for cutting height template of the shearer drums based on working condition
Externí odkaz:
https://doaj.org/article/29faa9b0ad334e69abb872c5a3ca29f2
Publikováno v:
Gong-kuang zidonghua, Vol 50, Iss 4, Pp 133-143 (2024)
In actual production, the cutting and crushing process is the result of multi action coupling. The bidirectional coupling technology of discrete element method (DEM) and multi bodydynamics (MBD) can achieve information exchange between coal mining eq
Externí odkaz:
https://doaj.org/article/3caacb1dc6b642619a3af3e0ccfdff19
Autor:
LI Zhongzhong, LIU Qing
Publikováno v:
Gong-kuang zidonghua, Vol 50, Iss 1, Pp 9-16 (2024)
The traditional coal seam cutting path planning predicts the height of the drum through geometric control, planning calculation, and other methods. But there are problems with large data errors in planning and prediction and inability to adapt to cha
Externí odkaz:
https://doaj.org/article/e0f9f31e163243478e73a86262c1ea88
Publikováno v:
Library of Congress Magazine. Mar/Apr2024, Vol. 13 Issue 2, p25-25. 1/4p.