Quantitative distribution valve with low-viscosity lubricating oil as working medium

Abstract

The invention discloses a quantitative distribution valve with low-viscosity lubricating oil as a working medium. The quantitative distribution valve is composed of a switch valve body, a switch valve element, an end cover, an oil injection valve body, air cylinders and the like. The output amount of the low-viscosity lubricating oil can be accurately controlled. Air cylinder adjusting nuts are manually adjusted to adjust the range of the output amount. The switch valve element is controlled through the air pressure to be located in the upper position. The lubricating oil enters the oil injection valve cavity from switch valve oil inlet hole. The switch valve element is controlled through the air pressure again to be located in the lower position. The air cylinders conduct piston motion and press out the lubricating oil in the oil injection valve cavity. The quantitative distribution valve can be applied to the situations that the low-viscosity lubricating oil serves as the working medium, the output amount is extremely less, and the precision requirement is high, for example, the quantitative distribution valve can be used for smearing of vaseline oil on an electrode end column of an accumulator, the output amount of the lubricating oil can be controlled accurately, thus equipment is guaranteed, and the service life is prolonged.

Description

technical field [0001] The invention relates to a quantitative distribution valve whose working medium is low-viscosity lubricating oil, and belongs to the technical field of mechanical instrument detection. Background technique [0002] Quantitative dispensing valve is a new type of equipment that provides timing, quantitative and precise oil filling for factory machinery and industrial production. It has high integration, convenient installation, easy maintenance, high degree of automation, low labor intensity, stable performance, and convenient oil filling. Features. Many existing distribution valves can only output quantitatively and cannot adjust the output volume. Some distribution valves can adjust the distribution volume, but due to the pressure difference between input and output and structural reasons, the actual accuracy is extremely low, and it is difficult to meet the high-precision requirements; many distribution valves The valve is reset by spring or magnet a...

AI Technical Summary

Problems solved by technology

Many existing distribution valves can only output quantitatively and cannot adjust the output volume. Some distribution valves can adjust the distribution volume, but due to the pressure difference between input and output and structural reasons, the actual accuracy is extremely low, and it is difficult to meet the high-precision requirements; many distribution valves The valve is reset by spring or magnet attraction. This kind of reset method has low reliability, is easy to jam, and resets slowly. The time of oil inlet and outlet is uncontrollable and the efficiency is low.

[0003] Chinese patent 200720148343 discloses a valve-type oiler. The disadvantage is that the spring is the driving force of the quantitative piston, which pushes the valve core and presses the oil into the oil outlet chamber. The reset time is long, and the spring is not reset properly, causing measurement errors and cannot be accurate. Control the oil supply of lubricating oil

Chinese patent 200920088379 discloses a dispensing valve. Due to structural reasons and the actual input and output pressure difference, it still only achieves roughly controlled output, and the output of low-viscosity lubricating oil cannot be accurately controlled; it uses spring reset, slow reset, and low efficiency. ;The metering valve body is equipped with detection elements, and the piston is equipped with signaling elements, which has a complicated structure; and it is only suitable for large-scale mechanical systems, and it is not competent for systems with small output and high precision.

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