The working principle and structural characteristics of the dynamic and static pressure spindle

The working principle of the dynamic and static pressure spindle is to inject constant pressure oil into the bearing, forming a static pressure bearing oil film to support and rotate the spindle. This type of oil can be forcibly injected into the sliding bearing between the bearing and the shaft through a pressure pump

The structural characteristics of the dynamic and static pressure spindle are the combination of dynamic pressure oil wedges, static pressure oil chambers, and deep and shallow oil chambers. This structure enables the dynamic and static pressure spindle to maintain stability, good rigidity, and high smoothness during operation

The working modes of the dynamic and static pressure spindle include normal mode, high-definition mode, ultra high definition mode, etc. Different modes correspond to different file sizes. When using the dynamic and static pressure spindle, it is necessary to pay attention to replacing the second spindle oil and coarse and fine filter element, and to perform the loading and unloading of the pulley and grinding wheel while the pump station is working

The dynamic and static pressure spindle is a high-precision machining equipment, and its purpose of inspecting machining accuracy is to ensure that the machining accuracy meets the requirements, improve product quality and usage effect. The inspection methods include outer diameter accuracy, roundness accuracy, axial runout, radial runout, and surface roughness

In general, the dynamic and static pressure spindle is a sliding bearing that uses a pressure pump to forcefully inject oil between the bearing and the shaft. It is suitable for high-speed and light load machine tool spindles, such as centerless grinding, roll grinding, etc. It is widely used in the machining of high-precision components, such as high-precision spindles, lead screws, turntables, guide rails, and other moving parts