液壓升降機是通過電機驅動液壓泵將液壓油通過閥塊、油管進入油缸，由油缸帶動支桿或者鏈條、鋼絲繩使工作臺面做工作順序。
Hydraulic lift is motor-driven hydraulic pump through the hydraulic oil through the valve block, tubing into the cylinder, the cylinder rod or chain drive, rope making countertops do the work order.

由于液壓油本身的壓縮比，液壓元件的內泄漏，設備本身的升降間隙，當荷載作用在工作臺面上時有一定的下沉量，當工作環境要求嚴格，要求工作臺面在預定位置保持一定精度時，必須采取一定的措施：
Since the compression ratio of hydraulic oil itself, internal leakage of hydraulic components, the gap lifting device itself, when the load when a certain amount of subsidence in the work surface when the work environment is demanding accuracy requirements of the work surface at a predetermined position to maintain a certain , you must take certain measures:

1.提高液壓元件的精度、在液壓系統中設置液壓鎖、設置儲能器進行液壓補償。
1 to improve the accuracy of hydraulic components, hydraulic lock set, setting the hydraulic accumulator be compensated in the hydraulic system.

2.設置特種導軌進行機械鎖緊。
2 set of special rail mechanical lock.

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