This article mainly introduces:

Nepal hydraulic cylinder,unidirectional cylinder manufacturer,unidirectional cylinder

(Nepal unidirectional cylinder,produced by Hengyu Hydraulic Cylinder Factory）

unidirectional cylinder are widely used in Nepal，because of long service life，smooth movement，high work efficiency.So our company has designed unidirectional cylinder for customers from Nepal.

Introduction to unidirectional cylinder:

Protection of the unidirectional cylinder surface: During the dismantling process, safety protection should be carried out on the unidirectional cylinder to prevent objects from falling and welding slag from falling to the surface, causing damage to the unidirectional cylinder surface. In the process of propulsion, the damaged pipe segments should be prevented from falling and smashing, and the slurry remaining on the surface of the unidirectional cylinder should be cleaned up in time.

unidirectional cylinder is the most important part of construction machinery, the traditional processing method is: broaching unidirectional cylinder block - fine boring unidirectional cylinder block - grinding unidirectional cylinder block. The rolling method is: broaching unidirectional cylinder block - fine boring unidirectional cylinder block - rolling unidirectional cylinder block, the process is 3 parts, but the time is compared: grinding 1 meter of the unidirectional cylinder block is about 1-2 days, rolling 1 meter of the unidirectional cylinder block is about 10-30 minutes. Input comparison: grinding machine or quilting machine (tens of thousands - millions), rolling knife (ten thousand - tens of thousands). After rolling, the surface roughness of the hole decreases from RA3.2-6.3 μm before rolling to Ra0.4 ~ 0.8μm, the surface hardness of the hole increases by about 30%, and the fatigue strength of the inner surface of the unidirectional cylinder increases by 25%. If the unidirectional cylinder life is only considered, it is increased by 2 to 3 times, and the boring and rolling process is 3 times more efficient than the grinding process In particular, if you want to make high-quality unidirectional cylinders, you must take the rolling production process. After the unidirectional cylinder is rolled, there is no sharp tiny edge on the surface, and long-term motion friction will not damage the seal ring or seal, which is particularly important in the hydraulic industry.

The material, shape and compression of the unidirectional cylinder seal have a great impact on the service life and work efficiency of the unidirectional cylinder. In addition to requiring a reliable seal, it should also have a long service life and less friction loss. At present, there are many seal manufacturers in the country, and it is also crucial to choose high-quality seals with reliable and stable quality.

When the unidirectional cylinder is in use, measures should be added to prevent the intrusion of pollutants. Effective measures should be taken to control the intrusion of pollutants, such as installing high-efficiency air filters in the tank breathing holes, new oil must be filtered, etc., but also must improve the anti-pollution ability of the unidirectional cylinder itself. In the seriously polluted environment, it is more important to pay attention to, such as the underground oil unidirectional cylinder should use fluorine rubber (FRM) and nitrile rubber (NBR) dust ring, and the ground mechanical unidirectional cylinder should use nitrile rubber dust ring; The filter device is added to the oil inlet of the unidirectional cylinder of the dump truck, construction machinery, work platform and other equipment, and in order to reduce the oil inlet resistance, the flow area should be increased as much as possible, which can effectively reduce the particle pollution from the system.

Answers to some questions about unidirectional cylinder:

In a hydraulic system, a hydraulic pump has many hydraulic cylinders and hydraulic motors, and these executive components do not coordinate their actions with each other.
A load-sensitive variable pump can be used if these components sometimes need to work simultaneously and the power required is large. The required flow is distributed by the multi-way reversing valve, and the required flow and pressure changes are automatically adjusted by the hydraulic pump. Pressure reducing valves can be used for particularly low pressure circuits. Because you execute more components, the use of quantitative pump will cause a waste of energy, the system heat is large, not suitable.

Why do two hydraulic cylinders lift out of sync?
There may be several situations (do not know the result of the equipment, may not be accurate) 1, whether the slow one is worn 2, whether there is air in the slow cylinder 3, if the two cylinders are supplied by the same oil port, whether the slow joint is blocked (some processing residue will reach a certain oil port under a certain coincidence condition, This situation will not happen if it is not necessarily good before) 4, the oil seal in the slow cylinder leaks, causing the feed oil to leak from the return oil end. Point 4 is most likely because it is invisible and a technical failure. If it is a dual oil feed (separate oil feed), it is also necessary to check the oil supply system and the oil return system (valve type).