Results 21 to 30 of about 836 (213)
Speed control method of scraper conveyor based on load prediction and energy consumption optimization [PDF]
Meitan kexue jishuAiming at the problems of energy waste and low transportation efficiency caused by continuous high-speed operation of scraper conveyor in fully mechanized mining face, this paper combined with two-way coal cutting technology, systematically analyzed the ...
Weibing WANG +5 more
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Analysis of influencing factors of scraper pitch of en-masse conveyor
Gong-kuang zidonghua, 2018 In order to solve problem of how to determine scraper pitch when en-masse conveyors transported different materials， MS and MC en-masse conveyors were taken as the research object, the influence law of the scraper area, conveying material, machine slot ...
ZHAO Xiaoxia +4 more
doaj +2 more sources
Analysis of Scraper Conveyor Chain Drive System based on Matlab and VB
Jixie chuandong, 2016 In order to improve the efficiency and reliability of the scraper conveyor chain drive system parametric design,the finite element mathematical model is built and the parametric analysis and calculation is carried out by using the software interface of ...
Mao Jun +4 more
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TORSION PENDULUM DYNAMIC CHARACTERISTICS STUDY OF SCRAPER CHAIN SYSTEM OF SCRAPER CONVEYOR
Jixie qiangdu, 2018 In order to investigate torsion pendulum dynamic characteristics of scraper chain system,dynamic model of scraper chain system was established by using finite element method.Numerical simulation was analyzed for dynamic characteristics of scraper chain system by applying pulse load,step load and slope load.Torsion pendulum dynamic characteristics of ...
MAO Jun +3 more
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IEEE Access, 2017 A composite sliding mode control based on the load characteristic of the permanent magnet direct-driven system is presented for a mining scraper conveyor.
En Lu
exaly +3 more sources
Research of frequency conversion motor for scraper conveyor
Gong-kuang zidonghua, 2015 In order to improve overall performance of scraper conveyor used on working face, frequency conversion motor was used as driving device of scraper conveyor to realize soft start. Designs of mechanical structure, electrical structure and control system of
LI Shixu, YAO Liquan, JU Peng
doaj +2 more sources
A dual-motor drive system for scraper conveyor
Gong-kuang zidonghua, 2022 Current scraper conveyors with permanent magnet synchronous motors often improve their efficiency by updating the mechanical structure of their drive systems, few efforts are made to optimize the control of permanent magnet synchronous motors. This paper fills the gap by involving maximum torque per ampere (MTPA) and flux-weakening controls to improve ...
JING Wanli +4 more
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FAILURE ANALYSIS OF THE FLAT CHAIN OF SCRAPER CONVEYOR
Jixie qiangdu, 2018 As one of the key transmitting components and wearing parts of scraper conveyor,There are different types of wear which result to the failure of flat type chains. This study focused on the failure of the flat chains of Joy scraper conveyor used in Shendong Coal Mining Group.
ZHAI JianHua +5 more
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STUDY ON MECHANICAL CHARACTERISTICS OF SCRAPER CONVEYOR UNDER CHAIN-BREAKING CONDITION
Jixie qiangdu, 2022 Abstact Taking into account the long-distance and heavy-duty working characteristics of the scraper conveyor, the harsh working environment and complex working conditions often lead to jams and chain broken accidents.
XIE Miao +3 more
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INCREASING RESOURCE OF SCRAPER CONVEYORS
Bulletin of Kharkov National Automobile and Highway University, 2020 Abstract. We have studied the properties of steels BRK, 18ChGT, 20ChGNB used for the manufacture of sidewalls of chute conveyor pans after various treatment regimes in order to select the most appropriate one. The working conditions stipulate high demands to chute conveyor pan material with respect to strength and durability, and the term of chute ...
Hlushkova, D. +2 more
openaire +3 more sources