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动力头是旋挖钻机的主要工作机件,它所受到的负载及负载的变化量都较大,因此,在旋挖钻机施工过程中动力头的故障是非常多的,并且出现故障后往往需要停机检修,给机主带来很大的经济损失。动力头转动异常主要有以下3种情况。1主泵显示压力过低,动力头转动不正常(1)动力头油座上的溢流阀卡住或者损坏导致溢流压力过低。此种情况往往具有空载转动正常,负载转动无力或者转不动的特征,往往是由于机主不
Power head is the main working part of rotary drilling rig, which is subject to greater load and load variation. Therefore, the failure of power head during the construction of rotary drilling rig is very large, and it is often required after the failure Downtime maintenance, bring great economic losses to the owner. Power head rotation abnormalities are the following three kinds of situations. 1 The main pump shows the pressure is too low, the power head rotation is not normal (1) Power head block overflow valve stuck or damaged resulting in overflow pressure is too low. This situation often has no-load rotation is normal, the load rotation is weak or turning characteristics, often due to the owner is not