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1K-103型采煤机外牵引部安装在顺槽内。采煤机的移动借助于圆环链来进行。牵引链的端部固定在采煤机挂接装置的固定卡内。固定卡用拉紧螺栓加以固定。外牵引部的牵引力为20t。牵引力可使固定卡在挂接装置内旋转和拉紧螺栓变形,即在采煤机移动时会产生附加阻力。螺栓变形后很难更换固定卡,这就会导致采煤机工作时间的损失。 西乌克兰煤炭联合生产公司的合理化建议者建议并安装拉紧花蓝螺丝(见图)。用花蓝螺丝可以拉紧固定卡,这就能保证采煤机固定卡稳定地工作。
1K-103 Shearer outside the traction unit installed in the cistern. Shearer movement by means of a circular chain. The end of the towing chain is secured in the retaining clip of the shearer hitch. Fix the card with tension bolts to be fixed. Traction Department of the traction force of 20t. Traction forces the retaining clip to rotate and tighten the bolt in the hitch, creating additional resistance as the shearer moves. Bolt deformation is difficult to replace the fixed card, which will lead to the loss of working hours Shearer. Rational Proposal by West Ukraine Coal Manufacturing Company recommends and installs tensioning blue screws (see photo). With the blue screw can tighten the fixed card, which will ensure the shearer fixed card to work stably.