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概述全液压钻机最大工作油压在160～210公斤/厘米~2之间,适合这一等级压力测量的仪表有:传统的弹簧管式压力计、弹簧柱塞式压力计、电阻应变式压力传感器和压电效应传感器。弹簧柱塞式压力计,由于柱塞与缸体必需采用间隙密封,油的漏泄是不可避免的。为了减少这种漏泄并使之在允许范围内,柱塞和孔的配合间隙应小于1μ。考虑到弹簧尺
Overview The maximum hydraulic pressure of the hydraulic drill is between 160 and 210 kg/cm~2. Suitable pressure gauges for this level include: traditional spring tube pressure gauge, spring plunger pressure gauge, resistance strain pressure sensor And piezoelectric effect sensors. Spring plunger type pressure gauges, because the plunger and the cylinder must be sealed with gaps, leakage of oil is unavoidable. In order to reduce this leakage and make it within the allowable range, the clearance between the plunger and the hole should be less than 1μ. Taking into account the spring ruler