A cylinder self-lubricating device for a pneumatic valve

Abstract

The invention discloses a self-lubricating device for a cylinder of a pneumatic valve. The self-lubricating device for the cylinder of the pneumatic valve comprises an oil storage device and an automatic oil injector, wherein a longitudinally formed oil injection hole, a horizontally formed valve element hole, a horizontally formed air inlet hole and a horizontally formed air exhaust hole are formed in the automatic oil injector; the upper end of the oil injection hole is connected with the oil storage device; the lower end of the oil injection hole sequentially communicates with the valve element hole and the air inlet hole; one end of the valve element hole is connected with the cylinder of the pneumatic valve; the other end of the valve element hole is sealed; the valve element hole further communicates with the exhaust hole; one end of the air inlet hole is connected with an air pipe; the other end of the air inlet hole is connected to the cylinder; a valve element is arranged in the valve element hole; a section of annular groove for communicating with the oil injection hole is formed in the valve element; a spring is arranged at one end of the valve element; and the valve element moves back and forth through double functions of the air intake of the valve element hole and the resetting of a spring, so that on and off between the oil injection hole and the valve element hole as well as the valve element hole and the exhaust hole are further controlled. According to the self-lubricating device for the cylinder of the pneumatic valve provided by the invention, automaticoil injection can be conveniently realized by utilizing a discharged exhaust gas, and once if the valve acts for one time, oil can be injected as the same time, so that the cylinder is self-lubricated.

Description

technical field [0001] The invention relates to a cylinder lubricating technology of an air valve, in particular to a cylinder self-lubricating device for a pneumatic valve. Background technique [0002] Iron and steel enterprises are equipped with a large number of large high-speed filters with a diameter of 5 meters and a height of 8.5 meters in the turbidity circulation system of continuous casting water treatment, flame cleaning water treatment, hot rolling water treatment and wide and thick plate water treatment. The function of the filter is to filter out a large amount of impurities and particles mixed in the turbid circulating water system, and at the same time automatically clean up the impurities remaining in the filter material, and then filter the relatively clean The circulating water is sent to the cooling tower for cooling, and the filtered and cooled water will finally be sent to the user to meet the production needs of the continuous casting and rolling mill...

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Problems solved by technology

Therefore, whether it is buying a new product, entrusting a professional unit to repair it, or dismantling and repairing it on site, these three methods can only solve the superficial phenomenon that the cylinder can be used temporarily, but cannot completely change the ultimate problem of cylinder fission, because The grease added in the cylinder will be lost at any time with the switching of the valve and the discharge of gas, which will shorten the service life of the valve and increase the frequency of maintenance, which will not only waste A lot of maintenance fees, repair fees, and new product purchase fees, and at the same time, the wear on the inner surface of the cylinder will become more and more serious. After reaching a certain level, the cylinder can only be scrapped, so it will cost a large amount of spare parts to purchase cost, because after-the-fact maintenance can only cure the symptoms but not the root cause, that is, the wear and deterioration of the surface of the cylinder due to long-term dry friction cannot be changed at all.

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