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钻机驾驶员完成钻孔作业后,需将钻杆完全提出地面,再进行行车操作,但有时钻机驾驶员由于疏忽违反操作规程,在钻杆未完全提出地面之前,就进行行车操作,容易导致钻杆被拉弯机械事故的发生。通过对DM30型钻机钻孔工作方式及行走液压系统进行分析,采用非接触式检测元件对钻杆位置进行实时检测,利用检测元件的输出信号控制行走系统先导油路电磁阀,进而控制行走液压系统,确保钻杆在未提出地面之前钻机不能行走,避免发生钻杆被拉弯机械事故,在实际应用中取得了较好的效果。
Drill pilots to complete the drilling operation, the drill pipe to be put on the ground completely, and then driving operations, but sometimes the drill driver due to negligent violations of operating procedures in the drill pipe is not fully put on the ground before the operation, easily lead to drilling Pole bending machine is the occurrence of mechanical accidents. Through the drilling operation mode and hydraulic system of DM30, the non-contact detection element is used to detect the position of the drill rod in real time. The output signal of the detection element is used to control the solenoid valve of the pilot oil path of the walking system to control the running hydraulic system , To ensure that the drill pipe can not walk before the ground is not raised, to avoid mechanical accidents of the drill pipe being pulled and bending, and has achieved good results in practical application.