The leak of hydraulic pressure oil cylinder can be divided for two kinds of types, one kind is exterior leak, one kind is internal leak.
Leak basically is to show hydraulic pressure oil arrives from systematic leak in the environment outside, leak is to because on any account presses the presence with the poor pressure of side and weather strip invalidation to wait for a reason,point to inside, make hydraulic pressure oil is in interior of oil cylinder system flows to low-pressure side by high-pressured side, discharge is mixed inside outside discharge brings about invalidation of hydraulic pressure crock possibly.
Hydraulic pressure oil cylinder is exterior leak
The leak of pressure conduit can be discovered by very easy ground, because can see the hydraulic pressure of discharge leakage is oily. Safeguard personnel and handlers to often ought to examine every cell of system of whole hydraulic pressure, discover leak is nodded in time and begin to solve leak problem instantly. But exterior leak happens when the oil absorption mouth of pump to detect very hard, if appear the following one of 5 kinds of phenomena, can suspect produced systematic oil absorption to be in charge of leak:
Gas bubble; is free in oil of ① hydraulic pressure
Movement of system of ② hydraulic pressure is not steady, have creeping phenomenon;
; of overheat of system of ③ hydraulic pressure
; of heighten of pressure of ④ gasoline tank
⑤ pump noise increases.
If above holds the post of He Yi phenomenon to exist, ought to check all oil absorption pipe fittings and joint to be nodded in order to search leak above all. Do not want overly to come back to tube connect close, because excessive come back to be able to make pipe fittings is out of shape closely, can increase leak instead, ought to use what equipment manufacturer recommends to come back close torsion value, this will assure reliable sealed and won't make pipe fittings and twist of sealing ring generation are out of shape the damage that causes sealing ring appearance.
Leak of interior of hydraulic pressure oil cylinder
As a result of the component in hydraulic pressure system wear away, as the elapse of time, the leak that arises in component interior will be more and more apparent, slight internal leak may not be aware of, but, as inside the addition of leakage, systematic overheat will become an issue. When this kind of circumstance happening, other component of the system will begin invalidation. The simple way that differentiates internal leak is the working cycle when test system is fully loaded with and carrying for nothing, if was spent,compare a lot of longer time when carrying for nothing to just be finished have the action when carrying, can suspect pump invalidation so.
Once the hydraulic pressure component in hydraulic pressure system produces leak, can cause the pollution of the waste of medium and environment not only, and more serious meeting makes system of whole hydraulic pressure malfunctions, break down works, as a result produces accident of safe, quality. To reduce the breakdown of hydraulic pressure system, improve the efficiency of hydraulic pressure system, avoid environmental pollution and the loss that reduce hydraulic pressure medium, must note leak problem, analyse the cause that causes leak, take corresponding step, achieve the goal that reduces leak down to to prevent leak.
