Air film forming device and reciprocating motor

Abstract

The invention is applicable to the technical field of machine air film lubricating devices, and provides an air film forming device. The air film forming device is characterized by comprising a cavity, a plugging cover and a piston, wherein the cavity is of a cylindrical structure; installation holes are formed in two ends of the cavity; the plugging cover comprises a front plugging cover and a rear plugging cover which are respectively connected with two sides of the cavity through the installation holes; the rear plugging cover is provided with an air filling port and a pressure limiting valve; the piston is arranged in the cavity and provided with an air channel; the air channel comprises an air inlet, an air storage channel and an air outlet; the air inlet is provided with a one-way valve allowing air to enter; the air outlet is formed in the side face of the piston; and the air inlet and the air outlet are both communicated with the air storage channel. Therefore, the problems that a lubricating medium needs to be replaced in traditional oil film lubrication and the traditional oil film lubrication is greatly influenced by the environment temperature are solved; and through the air film forming device, air films are formed between parts, so that the friction loss of the parts is reduced, and the structure of a machine is simplified.

Description

technical field [0001] The invention relates to the technical field of air film lubrication devices for machines, in particular to an air film forming device and a reciprocating motor. Background technique [0002] In traditional moving parts, especially those involving reciprocating and rotating motions, the lubrication is achieved by adding liquids such as lubricating oil or solid lubricating media such as grease, which will be lubricated during operation. An oil film is formed between the parts that move with each other to ensure that there will be no dry friction between the parts, but with this lubrication method, an additional lubricating mechanism needs to be added to ensure the formation of the oil film, which increases the manufacturing cost of the machine; Moreover, it is necessary to replace the lubricating medium regularly to ensure the cleanliness of the lubricating medium; it is difficult to form an oil film when the ambient temperature is low, which leads to s...

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Problems solved by technology

[0004] In view of the above-mentioned defects, the purpose of the present invention is to provide an air film forming device and a reciprocating motor, which can solve the problem that the traditional oil film lubrication needs to replace the lubricating medium and is greatly affected by the ambient temperature. Through the air film forming device, it can realize Form an air film between parts to reduce the friction loss of parts and simplify the structure of the machine

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