Air supply machine

Abstract

The invention discloses an air supply machine. The air supply machine comprises a shell, a motor, a compression assembly and a driving assembly, wherein the motor is positioned in the shell; the compression assembly comprises an air cylinder and a piston arranged in the air cylinder; the driving assembly is used for converting the rotating motion of a motor shaft into reciprocating motion of the piston in the air cylinder, the driving assembly comprises a speed reducing mechanism, and the speed reducing mechanism is used for reducing the rotating speed of the motor shaft and driving the piston to do reciprocating motion through an output shaft of the speed reducing mechanism and is used for compressing air; the inner diameter of the air cylinder ranges from 50 mm to 100 mm, and the stroke of the piston ranges from 40 mm to 100 mm; and the rotating speed of the output shaft ranges from 60 rpm to 600 rpm. According to the air supply machine, the diameter and the stroke of the air cylinder and the rotating speed of the output shaft are optimally designed, so that the single-time compressed air amount is large, the rotating speed is reduced under the condition that the total displacement is not changed, the time of the compression process of air in the air cylinder is prolonged, heat dissipation is accelerated, isothermal compression is achieved, and the air compression efficiency is improved.

Description

technical field [0001] This application relates to air supply machines. Background technique [0002] Atmospheric pressure (below 0.8Mpa) pneumatic tools are still widely used in various pneumatic tools due to their simple structure, reliable operation, convenient maintenance, and long life, such as: pneumatic nail guns, spray guns, jackhammers, air shears, Inflatable devices, etc., but there are also some problems. The air source air supply machine is heavy and inconvenient to carry, and it cannot be operated cordlessly. The power supply on the construction site is often inconvenient to connect and other factors, causing users to complain that the experience is not good. Therefore, various lithium battery air compressors have appeared on the market to meet this type of market demand, and the development momentum is strong. [0003] Although this type of air supply machine has solved the power supply problem, the weight is still generally heavy due to the gas storage tank a...

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Problems solved by technology

[0003] Although this type of air supply machine has solved the power supply problem, due to the reason of the air storage tank and structure, the weight is still generally heavy, and it cannot be carried around at all. Moreover, due to the use of small-volume high-frequency compression technology, the compression efficiency is low, serious heat generation and vibration and noisy

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