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Cite this article: DING Yongcheng. Analysis and Optimization of Shearer with Rocker Arm Lifting Hydraulic System[J]. COAL ENGINEERING, 2018, 50(2): 145-147.

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3. All shearer bearing are Sweden SKF series products. 4. The MG750 Longwall Coal Shearer machine has the operation parameter display and alarm function. 5. The coal mining machine has fault diagnosis, treatment, automatic memory storage, transmission and microcomputer control function. Technical Parameters of MG750 Longwall Coal Shearer

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SWS100/230-WD Shortwall Shearer . SWS100/230-WD shearer is the latest developed double-drum type which is suitable for shortwall and large inclination-angle panel. 1. Design points. In order to fit shortwall working face, the total length is strictly limited within …

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2, uneven load gear arm, at any time may be from large coal, gangue or misoperation caused by factors such as rocker arm momentarily huge impact; 3, shearer vibration source and more motor vibration (such as cutting motor, traction motor, etc.), arm gearbox vibration, traction gearbox vibration, shearer walking and scraper conveyor gear rack ...

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The shearer adopts on-board and "one for two" AC variable frequency speed regulation and eicotrack-traction. This model of coal shearer is applicable to the fully-mechanized working face which thickness of coal seam is 1.0-1.6m(2m), dip angle ≤ 60 ° (< 30 ° four-quadrant) and f < 4.5. HMG2x80/388-BWD Technical Parameters

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Jun 29, 2017· Figure 4 Rocker arm. 2. Inclined Vane Model Drum. The vane and barrel of the low coal seam coal shearer drum is arranged vertically basically, for low coal seam coal shearer…

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With the development of coal mining technology and strin-gent requirement for colliery safety, the automation of fully mechanized coal face has been inevitable trend. As a major coal mining machine, shearer plays a pivotal role in getting high-security and high e ciency of exploitation [, ]. In order to realize the automated control of shearer ...

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the domestic mining industry, increasing investment from major Chinese coal mine enterprises. Chinese mining equipment researchers have focused on the performance of thin seam shearers. A plough shearer is used to mine a coal seam of fewer than 1.3 m in Europe and America, while in China a drum shearer is used. Due to the

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Coal Shearer - RitchieWiki. A coal shearer is an electrically driven hydraulic cutting machine also referred to as a power loader, stage loader or shear loader used in the longwall mining of coal.The average coal shearing machine is 15 meters long, weighs in excess of 90 tons and can travel up to speeds of 10 to 14 meters a minute. Get a Price

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