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濟南液壓升降機上升下降的原理分析

文章來源:www.www.lg048.com   發布時間:2015-4-22 19:04:25   瀏覽次數:

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濟南液壓升降機http://www.www.lg048.com/上升動作,通過上升按鈕控制接觸器吸合,通電動馬達電源,電動馬達運轉驅動液壓泵工作,液壓油在液壓泵的加壓作用下,經濾油器、隔爆型電磁換向閥、節流閥、液控單向閥、平衡閥、防爆閥進入液壓缸下端,液壓油作用于活塞,推動活塞桿向上運動,帶動升降平臺臺面上升,液壓缸上端回油經隔爆型電磁換向閥回到油箱,其額定壓力通過溢流閥進行調整,通過壓力表觀察壓力表讀數值。當到達升降平臺設定位置時,通過行程開關斷開接觸器控制回路電源,接觸器斷開,切斷電動馬達電源,升降平臺在指定位置停止。
Jinan hydraulic lifts rising action, through increased control contactor pull button, through the power of electric motors, electric motor-driven hydraulic pump operation, hydraulic fluid under pressure, the role of the hydraulic pump,the filter, flameproof electromagnetic commutation valve, throttle, check valve, balance valve, explosion-proof valve into the lower end of the hydraulic cylinder, hydraulic oil acting on the piston rod pushing upward movement, driven by the rise platform lift table, hydraulic cylinder oil through the upper back flameproof electromagnetic valve to the tank, which is adjusted by the rated pressure relief valve, pressure gauge readings by observing the pressure gauge.When reaching the lifting platform set position, disconnect the contactor control circuit power supply through the trip switch, contactor off, cut off electric power to the motor, the lifting platform stops at the specified location.
 
濟南液壓升降機http://www.www.lg048.com/下降動作,通過下降按鈕和繼電器接通卸壓回路電磁換向閥,在升降平臺自身重力和貨物重力的作用下,液壓缸活塞桿向下運動,在壓力作用下液壓油經防爆型電磁換向閥進入液缸上端,液缸下端回油經平衡閥、液控單向閥、節流閥、隔爆型電磁換向閥回到油箱。當到達制定位置時,通過行程開關切斷卸壓回路電磁換向閥電源,升降平臺在制定位置停止。為使重物下降平穩,制動安全可靠,在回油路上設置平衡閥,平衡回路、保持壓力,使下降速度不受重物而變化,由節流閥調節流量,控制升降速度。為使制動安全可靠,防止意外,增加液控單向閥,即液壓鎖,保證在液壓管線意外爆裂時能安全自鎖。
Jinan hydraulic lift lowering operation, the relay is turned on by the decline button and loop electromagnetic pressure relief valve, under the action of gravity and the gravity of the cargo lifting platform, hydraulic cylinder piston downward movement, under the pressure of hydraulic oil through explosion-proof solenoid valve into the upper end of the hydraulic cylinder, hydraulic cylinder through the lower back to the oil balance valve, check valve, throttle,explosion-proof solenoid valve to the tank. When you reach the position developed by the trip switch off the power supply solenoid valve relief loop, lifting platform in position to stop the development. In order to decrease the weight stable, safe and reliable braking, set the balancing valve, balancing loop back to the oil on the road, keep up the pressure, so that the rate of decline from the weight change, the throttle valve regulates the flow, speed control movements. In order to secure the brake to prevent accidents and increase check valve, namely hydraulic lock, ensure that when an unexpected burst hydraulic lines can safely self-locking.

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