Piston transmission mechanism and two-dimensional compressor

Abstract

The invention discloses a piston transmission mechanism which comprises a motor and a piston shaft. The motor has an output shaft which is fixedly provided with a coupling, the coupling is provided with a side groove, and a piston shaft is provided with a needle bearing which is limited in the side groove with a sliding fit. The piston shaft is orderly provided with two rotating shaft holes, a rotating shaft is inserted into each of the rotating shaft holes, at least one end of the each of the rotating shafts is fixedly provided with a roller, a raceway is fixedly arranged between the rotatingshafts, and a left cam raceway and a right cam raceway are symmetrically distributed at two sides of raceway and are provided with cam curved surfaces. When the output shaft rotates, the coupling drives the piston shaft to rotate, and the rollers on the rotating shafts roll along the cam curved surfaces on the corresponding left cam raceway and right cam raceway to allow the piston shaft to reciprocate linearly along the central axis of the piston shaft. The piston transmission mechanism has the advantages of light weight, high pressure, high efficiency, oil-free compression and low noise andvibration.

Description

technical field [0001] The invention relates to the technical field of compressors, in particular to a piston transmission mechanism and a two-dimensional compressor. Background technique [0002] The function of the compressor is to convert the mechanical energy into the pressure energy of the gas to increase the output pressure of the gas. It is a general-purpose machine with a wide range of uses, such as air conditioners and refrigerators, pneumatic transmission, gas transportation, chemical fuels, etc. Commonly used compressors mainly include piston compressors, rolling rotor, vane, scroll and screw compressors, and centrifugal compressors. Piston compressors have large vibration and noise, and it is difficult to achieve high speed. The air valve is a key part of the piston compressor, and the air valve is a vulnerable part. The rolling rotor compressor has fewer parts than the piston compressor, and its volume and weight are smaller than that of the piston compressor, ...

AI Technical Summary

Problems solved by technology

The piston compressor has a lot of vibration and noise, and it is difficult to achieve high speed. The air valve is a key part of the piston compressor, and the air valve is a vulnerable part

The rolling rotor compressor has fewer parts than the piston compressor, and its volume and weight are smaller than that of the piston compressor, but there is a relatively high speed of motion between the rotor and the cylinder, resulting in greater friction and wear, and greater rotational inertia force, causing vibration and noise

The scroll compressor has stable output gas, low noise and vibration, but the design of the scroll profile is difficult, and the processing accuracy is high, there is a large friction and wear, and the sealing requirements are high. It is difficult to achieve a large compression ratio on the medium and high pressure compressors.

Screw compressors can be divided into two categories: ordinary screw compressors and oil-free screw compressors. The core components are a pair of intermeshing rotors. There are no suction and discharge valves, few wearing parts, good balance, and small vibration. , high reliability, but the speed of the screw compressor is relatively high, resulting in high noise, complicated design and processing, large leakage, and low output gas pressure

Centrifugal compressors have few moving parts, high speed, large gas volume, and stable operation, but there is a narrow stable working area, which is not suitable for occasions where the gas volume is too small and the pressure ratio is too high

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