Soft start pneumatic clutch. It can realize the starting of the synchronous motor Raymond mill, and make the motor start without load. When the speed is stable, the clutch is combined and the Raymond mill is started. This can shorten the starting time of the motor itself, start easily, reduce the impact of the starting current on the power grid, and also reduce the installed power of Raymond mill.
2. hydrostatic bearing and static and dynamic pressure bearing design
It is a common design for Raymond mill to use dynamic and static pressure mixed lubrication bearings instead of ordinary bearings..
(1) in the Raymond mill before starting, high pressure using lubricating oil will float the shaft neck of 0.2 ~ 0.3mm, it can greatly reduce the starting load, and then start, after which can make the shaft and bearing by external supply, with certain pressure bearing oil film is completely separated from the start, when the shaft neck reach enough speed, namely the use of hydrodynamic lubrication bearing.
(2) when the Raymond mill is shut down, let the pressure oil float the shaft neck slowly on the bearing bush, so as not to abrade the bearing bush. This ensures that the journal is started under the condition of pure liquid friction. The friction resistance is small, the power consumption is small, and the transmission efficiency is high.