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在《煤矿机电》83年第5期《西德采煤机无链牵引装置传动特性的分析》一文中,说明了西德采煤机为什么它的圆柱销齿轨有两种不同的节距——125和126mm。文中结尾引述艾柯夫公司规定,当工作面倾角≤18°时,齿轨节距为126mm;>18°时为125mm。例如,最大采高为3.5m的EDW—310—L型采煤机,若在倾角>18°的煤层中工作,则齿轨节距应为125mm。通常采煤机的牵引部,由一个主牵引部和一个辅助牵引部构成,两个牵引部的液压马达作业并联连接,从而使牵引力增大一倍。两个液压马达各自
In “Coal Mine Electrical” No. 83 of 83 “West Shearer chainless traction device transmission characteristics of” one article, describes the West Shearer why its cylindrical pin gear with two different pitch - -125 and 126mm. Effov quoted the end of the article provides that when the face inclination ≤ 18 °, the rack pitch 126mm;> 18 ° 125mm. For example, an EDW-310-L shearer with a maximum recovery height of 3.5 m should have a 125 mm rack pitch if it is operated in coal seams with an inclination of> 18 °. The shearer of the shearer usually consists of a main traction part and an auxiliary traction part, and the hydraulic motors of the two traction parts are connected in parallel so as to double the traction force. Two hydraulic motors each