25YCY14-1B Axial Piston Variable displacement pump

CY14-1B series pump is an axial piston pump with cylinder rotation and variable head (swashplate). As the oil film thickness design of hydrostatic balance is adopted between the sliding shoe and the variable head, and between the oil distribution plate and the cylinder block, the above two pairs of moving surfaces are operated under pure liquid friction, and heavy thrust bearings are omitted. Therefore, compared with other types of pumps, the pump has the advantages of simple structure, small volume, high efficiency, light weight, low noise, long service life, strong self-priming capacity, etc. It is suitable for forging and pressing machinery, machine tools, ships, aviation Hydraulic equipment such as metallurgical machinery, plastic machinery, engineering machinery and mining machinery.

The main body (as shown in Fig. 1) is driven by the transmission shaft to rotate the cylinder block, so that the seven plungers evenly distributed on the cylinder block rotate around the center line of the transmission shaft. The sliding shoes in the column sliding components are pressed on the thrust plate (or swashplate) by the central spring. At the same time, the cylinder block is pressed on the oil distribution plate by the central spring through the outer sleeve, playing an initial sealing role. In this way, the plunger reciprocates with the rotation of the cylinder block, completing oil suction and oil pressure.