重慶升降機采用液壓雙管路防爆安全閥,,該液壓安全閥的工作油管采用液壓雙管路,,當一根液壓油管破斷后,,液壓安全閥的一個閥芯立即將該管路關閉,使空中作業(yè)機構(gòu)安全保持在原位,,同時液壓安全閥的另一個閥芯工作,,立即將另一條液壓油管自動接通,機構(gòu)仍維持正常工作,,確保機器和人身安全,。那么貨梯高壓膠管破斷是什么原因呢?
1,、貨梯工作時液壓缸隨升降臺運動,,高壓膠管反復進行撓曲動作,因而產(chǎn)生疲勞破斷,。
Zhejiang freight elevator hydraulic cylinder when working with the lifts movement, high-pressure hose repeated flexing action, resulting in fatigue breaking.
2,、貨梯的負載變化較大,液壓系統(tǒng)內(nèi)將產(chǎn)生液壓脈動,,脈動壓力達到一定值時,,高壓膠管會產(chǎn)生破斷。
Zhejiang large freight elevator load changes will generate hydraulic pressure pulsations within the hydraulic system, pulsating pressure reaches a certain value, high pressure hose will have broken.
3,、貨梯高壓膠管由于質(zhì)量差,,膠管與金屬接頭的扣壓連接強度不夠,液壓系統(tǒng)中峰值壓力出現(xiàn)時,,出現(xiàn)拔管現(xiàn)象,。
Zhejiang freight elevators due to the poor quality of the high-pressure hose, metal hose fittings withhold connection strength is not enough, when the peak pressure in the hydraulic system occurs, there extubation phenomenon.