920系列采煤机摇臂的改进设计

Improvement Design of Ranging Arm in Shearer 920 Series

针对920系列采煤机摇臂截割电机保护不到位、内喷雾供水装置易被撞坏、滚筒连接套不易拆装及截割功率偏小等问题,进行了改进设计。实践证明,改进后的摇臂保护更好、更易拆装、截割能力更强,大大提高了该系列采煤机的可靠性和适应性。

Aiming at existing problems of 920 series shearer＇ s ranging arm, such as protection lack of cutting motor, easily broken of the inner spray device, hard disassemble of drum＇ s connecting sleeve, and the unsufficient cutting power. The improvement design has been done. The protection of the cutting motor and the water supply device for inner spray on the ranging arm has been improved. The difficulty in disassemble of the drum＇ s connecting sleeve is eased. The practice proved that the improvement design greatly enhanced the reliability and adaptability of the ranging arm.