Hydraulic valve with high wear resistance

Abstract

The invention discloses a hydraulic valve with high wear resistance. The hydraulic valve comprises a valve body, a valve base and a forward oil inlet, the top of the valve body is provided with a pressure cavity, the adjacent sides of the pressure cavity are provided with long-hole screws, the pressure cavity and the valve body are fixed through the long-hole screws, one side of the pressure cavity is provided with an upper cover, and the upper cover is welded to the pressure cavity. According to the whole hydraulic valve with the high wear resistance, a great sealing measure is adopted, a special rubber protection cover and a special sealing gasket are arranged so that it can be ensured that hydraulic oil is not contaminated by external dust or other impurities, and therefore the situation is avoided that a hydraulic cylinder is damaged due to the increase of friction loss when the valve body works; a control piston is provided with a ceramic protective layer which has good insulationand corrosion resistance functions, and accordingly the use of the control piston is guaranteed; the valve body is provided with a strengthening key so that it can be ensured that the valve body works more stably, the hydraulic oil of the cylinder body does not easily overflow, and normal and stable running of the hydraulic oil of the valve body is ensured.

Description

technical field [0001] The invention relates to the technical field of hydraulic valve bodies, in particular to a hydraulic valve body with high wear resistance. Background technique [0002] The hydraulic valve is an automatic component operated by pressure oil. It is controlled by the pressure oil of the pressure distribution valve. It is usually used in combination with the electromagnetic pressure distribution valve. It can be used to remotely control the on-off of the oil, gas and water pipeline system of the hydropower station. Commonly used in clamping, control, lubrication and other oil circuits. There are direct-acting and pilot-operated types, and the pilot-operated type is mostly used. Explanation of terms: hydraulic valve is an automatic component operated by pressure oil, which is controlled by pressure oil of pressure distribution valve, usually used in combination with electromagnetic pressure distribution valve, and can be used to remotely control the on-off...

AI Technical Summary

Problems solved by technology

Explanation of terms: hydraulic valve is an automatic component operated by pressure oil, which is controlled by pressure oil of pressure distribution valve, usually used in combination with electromagnetic pressure distribution valve, and can be used to remotely control the on-off of oil, gas and water pipeline systems in hydropower stations , The hydraulic valve body is made of low-alloy gray cast iron, which not only has low strength, but also has serious shrinkage and loose structure, and the structure is not dense

Due to the low strength, fractures often occur under the action of high pressure and heavy load, which may cause the equipment to be unusable and affect production, and cause casualties or property losses in severe cases; Under the action, hydraulic oil leakage often occurs, causing the cylinder to release pressure, which seriously affects the working efficiency of the equipment

[0003] The existing hydraulic valve body has a complex design structure and poor airtightness of the whole device, which leads to the contamination of the hydraulic oil, which leads to increased wear of the hydraulic valve and aggravates its loss, which is not conducive to its long-term maintenance and use

Images