Plate;Swash

The main function of the excavator’s swashplate is to adjust the displacement of the hydraulic pump, thereby controlling the flow and pressure of the hydraulic oil.

The swashplate of an excavator is a tilted or angled plate connected to the pistons or plungers of the pump. When the swashplate rotates, it causes the pistons or plungers to move back and forth, creating a pumping action. By adjusting the angle of the swashplate, the operator can change the displacement of the pump, thereby controlling the pump output. A steeper angle increases the pump displacement, resulting in higher flow and pressure, while a smaller angle reduces displacement, leading to lower flow and pressure. This adjustment is crucial for meeting the specific requirements of the hydraulic system, as it allows the pump output to match the varying demands of the hydraulic system, providing the required flow and pressure.

Furthermore, some swashplate pumps have load sensing capabilities, allowing them to adjust the swashplate angle based on the load requirements of the hydraulic system. This ensures that the pump only provides the necessary flow and pressure when needed, thereby improving overall energy efficiency. Proper adjustment of the swashplate ensures efficient pump operation, delivering the required hydraulic power without consuming unnecessary energy. Internal adjustment mechanisms for pressure compensation are also essential to ensure that the pump maintains a consistent pressure level in the hydraulic system during load changes. This adjustability enhances the versatility of swashplate piston pumps, enabling them to adapt to a wide range of applications.