天津鸿河科技有限公司，颗粒计数器生产厂家

Solid particle pollutants in oil are the main cause of mechanical component wear. They interact with the surface of the component for a long time, resulting in various forms of wear, gradually damaging the surface of the component, increasing the fit gap, and increasing internal leakage. Today, we will take a look at the typical forms of accessory failures caused by particle pollution.

Pump accessories

The wear of hydraulic pump components is an inevitable result of mechanical operation, but particle pollution can accelerate the wear of relative moving parts of the pump, such as the plunger and cylinder bore, sliding shoes, and inclined plates of the plunger pump; The blades and blade slots, rotor end face, and distribution plate of the vane pump; The gear end face, side plate, gear, and housing of the gear pump cause damage to the surface of the components, increase the fit clearance, increase internal leakage, resulting in performance degradation and shortened service life.

Valve accessories

Many of them are important control accessories with slide valve type fitting mechanisms. High precision gap seals are usually used between the moving pairs, such as servo valves, boosters, and control valves. The fitting accuracy between the valve core and valve sleeve of the slide valve mechanism of accessories is very high, and the fitting clearance is as small as a few micrometers; In addition, the slide valve mechanism requires high flexibility and relative stability, and the force driving the valve core is very small, usually less than a few newtons, requiring the motion pair of the slide valve mechanism to maintain a completely liquid lubricated state. Therefore, such institutions are sensitive to particulate pollution. When solid particles flow through here with the liquid flow, they will cause erosion and wear on the precise edges of the components. At the same time, under the additional effect of gap flow, the particles are more likely to remain, damage the lubricating oil film, increase frictional resistance, further cause cutting wear, fatigue wear, and adhesive wear, resulting in particle accumulation and jamming. This can lead to a decrease in the flexibility, stability, and other performance of the slide valve movement, shorten the service life of accessories, and in severe cases, cause sudden jamming faults. Therefore, this is a high-risk area for pollution faults. In addition, particle pollution can also block the throttle or damping holes inside the valve, leading to unexpected and sudden failures.

Hydraulic cylinder

Particle pollution can accelerate the wear of seals, resulting in increased leakage.

Bearing components

Particle pollution can cause severe wear on bearings and shaft necks, increase frictional resistance, and lead to imbalance of rotating components, ultimately resulting in bearing and shaft failure.

Whether it is mechanical wear, chemical corrosion of halides, local high temperature caused by gas pollution, damage to accessories caused by high pressure, or products generated after water pollution, the vast majority ultimately exist in the fluid medium of the system in the form of particles. In fluid systems, except for the filter, which is a purification element for particulate pollution, all other components generate pollutants during operation and belong to polluting elements. The degree of contamination of the fluid system is reflected in the degree of contamination of the system's working medium - oil. The detection of oil contamination in the system should be highly valued, and conducting the detection of oil particle pollutants in fluid systems is one of the important means to prevent system failures from occurring.

在线表单

Inventory of typical attachments and common forms of malfunctions