Air compressor and blower

A compressor or blower includes: an impeller disposed on a high-speed shaft; a motor shaft extending from an end cover of the motor; a gearbox; and a lubrication system. And a gearbox disposed between the motor and the impeller, and including: a pinion disposed on the high-speed shaft; and a bull gear disposed directly on the motor shaft and engaged with the pinion gear. The lubrication system includes a single pump module configured to wet a bearing on the high speed shaft prior to activation of the motor and mechanically pump oil to the bearing during operation of the motor. 一种压缩机或鼓风机包括：叶轮，该叶轮布置在高速轴上；马达轴，该马达轴从马达的端罩伸出；齿轮箱；以及润滑系统。该齿轮箱布置在马达和叶轮之间，并包括：小齿轮，该小齿轮布置在高速轴上；以及大齿轮，该大齿轮直接布置在马达轴上与小齿轮啮合。该润滑系统包括单个泵模块，该泵模块设置成在启动马达之前湿润在高速轴上的轴承，并在马达操作过程中将油机械地泵送至轴承。