System working principle:

When the oiling machine receives the signal from the controller, it turns on the power and starts working. The main oil pipe gradually pressurizes and injects grease into the distributor. The pressure oil in the lower chamber of the DG distributor gradually pushes the piston up against the spring force, and the last time The grease stored in the upper chamber is discharged outward. All DG distributor pistons in the system move to the end point, that is, the DG distributor is discharged. If the oil filling machine continues to oil, the working pressure rises and the pressure oil returns to the tank through the safety valve.

The oiling machine stops supplying oil, and the oil in the main oil pipe returns to the oil through the unloading valve. The system pressure drops, the piston in the distributor begins to recover under the action of the spring. When the umbrella valve resumes closing the inlet of the distributor, the piston presses the lubricant stored in the lower chamber to the upper chamber through the hole of the core rod, and simultaneously The oil supply is also ready to go to the next cycle.