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The traditional swing piston air compressor is simple in structure and easy to use, and its application range is very wide. However, the existing models generally have the disadvantages of large volume, high noise of the whole machine and short service life of the sealing ring.

In order to solve one of the problems, researchers have proposed a new type of piston type oil-free air compressor with novel structure. On the basis of the traditional swing piston type, a swing rod structure is added, which can make the piston reciprocate in the cylinder according to the almost linear movement mode, thereby reducing the reversing knock degree of the piston and seal ring on the cylinder, reducing the side pressure of the cylinder, So as to reduce the noise of the compressor and prolong the service life of the seal.

Based on the calculation principles of thermodynamics and dynamics, and combined with advanced virtual simulation technology, the small swing rod constrained reciprocating piston air compressor is studied from the aspects of analysis, design and simulation experiment. Through the corresponding theoretical analysis, a conclusion is drawn, and then the actual design is verified and optimized.

With the rapid development of economy and the continuous improvement of people's living standards, small oil-free air compressors, especially small oil-free air compressors, are more and more widely used, not only in the pharmaceutical, chemical and food industries, but also in the medical, health care and decoration industries that are closely related to people's lives. They have become one of the most promising compressor products at present.

The new oil-free air compressor breaks the conventional piston compressor, changes the previous working mode of crank connecting rod structure, integrates the piston and connecting rod, and adds a unique swing rod structure. Compared with the traditional reciprocating piston compressor, the new oil-free air compressor has the characteristics of small volume, good sealing, low noise, high efficiency, novel shape and simple structure, and has completely independent intellectual property rights, Strong market competitiveness.