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,使空中作業機構安全保持在原位,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,液壓系統內將產生液壓脈動,脈動壓力達到一定值時,高壓膠管會產生破斷。
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量差,膠管與金屬接頭的扣壓連接強度不夠,液壓系統中峰值壓力出現時,出現拔管現象。
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.