Beijing North Zhongyi Heavy Machinery Co., Ltd. : Safety of crane speed limit (5)
Description：There are two kinds of oil leakage of hydraulic components: internal leakage and external leakage. L....
There are two kinds of oil leakage of hydraulic components: internal leakage and external leakage. Leakage in the hydraulic cylinder is not easy to detect, will lead to leg retraction, boom expansion and amplitude 3 mechanism can not be locked and subsidence phenomenon. Therefore, to improve the sealing effect of the hydraulic cylinder, the key is to solve the internal leakage problem occurred in its internal.
Generally speaking, the amount of oil leakage in the hydraulic cylinder of the truck crane should be strictly limited. During safety inspection, it is stipulated that the moving distance of the piston under rated pressure should not be greater than 0.5min within 10min. More than this value, indicating that the sealing performance is not good, to replace the new Y ring in time.
This article is organized by Beijing North Zhongyi Heavy Machinery Co., Ltd
