特厚煤层采煤机调高油缸设计及防护  

Design and Protection of Height Adjusting Cylinder of Shearer in Extra Thick Coal Seam

作　　者：张斌[1] Zhang Bin(Shanghai Branch,Tiandi Science and Technology Co.,Ltd.,Shanghai 200030,China)

机构地区：[1]天地科技股份有限公司上海分公司,上海200030

出　　处：《煤矿机械》2020年第7期20-22,共3页Coal Mine Machinery

基　　金：中国煤炭科工集团有限公司科技创新基金项目(2018-TD-ZD009)。

摘　　要：针对目前进口改造的特厚煤层采煤机调高压力大和油缸挤煤问题,采用对比方法确定了特厚煤层采煤机油缸的优选布置形式,通过建立整机调高数学模型,推导了油缸尺寸和压力的计算公式,提出了油缸行程和采高的换算方法,并提供了上置油缸的防护方案。In view of the problems of high pressure adjustment and coal extrusion by cylinder in the imported reformed extra thick coal seam shearer,the optimal layout of cylinder of the shearer was determined by the comparative method.By establishing the mathematical model of the whole machine′s height adjustment,the calculation formula of cylinder size and pressure were deduced,the conversion method of cylinder′s displacement and mining height were proposed,and the protection scheme of the upper cylinder was provided.

关 键 词：特厚煤层 采高检测 行程传感器 油缸防护 

分 类 号：TD421.6[矿业工程—矿山机电]