Results 61 to 70 of about 921 (128)

Key technologies of intelligent mining robot [PDF]

open access: yes
Coal mining machine is the core equipment of completely automated working face, and the research and development of intelligent coal mining robot is crucial for achieving the intellectualization of fully mechanized working face.
Chuanwei WANG   +15 more
core   +1 more source

Research progress on seal ring and gasket for pure hydrogen/hydrogen-enriched compressed natural gas pipeline [PDF]

open access: yes
Objective Seal rings and gaskets are deemed indispensable sealing components for the safe operation of pure hydrogen/ hydrogen-enriched compressed natural gas pipelines.
Cuiwei LIU   +4 more
core   +1 more source

液压机构的泄压试验

open access: yesGaoya dianqi, 1981
当前,在高压开关的操动系统中,液压机构日益增多。高压开关的液压操作机构,要求打一次压能保持72小时以上。检修人员在检修中,如何能在很短时间内检查出液压机构系统的渗漏情况,测算出油泵起停的时间,是一个很有实际意义的问题。 去年以来,我们采用了百分表法进行测定,可在很短时间内测出液压系统的渗漏情况来,,从而能对检修质量很快地作出准确的鉴定。所谓百分表测定法 ...
doaj  

Research on intelligent conveying technology of 500 m ultra-long face scraper [PDF]

open access: yes
In the field of medium and thick coal seam mining, intelligent mining of ultra-long face is the development trend of coal mining technology, and intelligent transportation is an important part of it.Based on the summary of the problems of the scraper ...
Hongzhang XIE   +3 more
core   +1 more source

Development of a power recovery-based dynamic loading system for full-size drill rods in coal mines [PDF]

open access: yes
ObjectiveThis study aims to simulate the actual forces applied to drill rods during the borehole drilling for gas drainage from underground coal mines to satisfy the requirements of drill rods’ fatigue tests.
Jie WANG, Jing ZHANG
core   +1 more source

Digital twin-driven full lifecycle intelligent equipment maintenance: Progress and prospects [PDF]

open access: yes
Digital twin map physical entities through simulation modeling, significantly enhancing system reliability and reducing maintenance costs by utilizing data fusion, behavior simulation, optimization decision-making, and visualization through virtual ...
Ding, J   +6 more
core   +1 more source

Research and application practice of digital intelligent technology and complete set of equipment for efficient coalmining [PDF]

open access: yes
Summarizing the current development status of intelligent and digital technologies in the coal industry, analyzing the new situations and requirements for research and application of intelligent technologies and complete sets of equipment for efficient ...
Desheng ZHANG   +6 more
core   +1 more source

压块机活塞杆修复

open access: yes工程技术与管理
德辉 沈, 学琦 吴
semanticscholar   +1 more source

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