PCY14-1B Axial Piston Pump

CY14-1B series pump is an axial piston pump with cylinder rotation and variable head (swash plate) variable. Due to sliding boots and variable between head, oil distribution plate and the cylinder body adopts hydraulic static equilibrium design of oil film thickness between the two surface of sport in the pure liquid friction under operation, and eliminating the heavy thrust bearing, and compared with other types of pump, has a simple structure, small volume, high efficiency, light weight, low noise, long service life, strong self-priming capacity, etc, It is suitable for hydraulic equipment such as forging machinery, machine tool, ship, aviation, metallurgical machinery, plastic machinery, engineering machinery and mining machinery.

 

CY14-1B Constant Pressure Variable Axial Piston Pump This variable type of pump, when the output pressure is less than the set constant pressure, the full displacement output pressure oil, namely quantitative output, when the output oil pressure reaches the set pressure, the pump flow will be automatically adjusted to ensure the constant pressure, to meet the requirements of the system. Pump output constant pressure value, according to need, within the scope of the surge tank can be stepless setting, the structure of the pump as shown in figure 6, the structure of the output pressure oil at the same time, through the variable piston of inferior vena and constant pressure valve control oil inlet, when the output pressure set is less than the constant pressure, role in the hydraulic thrust on the constant pressure valve core is less than setting the spring force, constant pressure valve is fully open, The pressure oil enters the upper chamber of the variable piston, the variable piston pressure is at the lowest position, and the full displacement of the pump outputs the pressure oil; When working in a set of constant pressure pump, role in the hydraulic thrust on the constant pressure valve core is equal to setting the spring force, constant pressure valve in the discharge of oil mouth in an open position at the same time, make inferior vena equals the hydraulic thrust on the variable piston, variable piston work balance at a particular location, if the hydraulic damping (load) increase, increases, the hydraulic transient of constant pressure valve discharge of oil on large, inlet off small mouth, The pressure of the upper chamber of the variable piston is lower than that of the lower chamber, and the variable piston moves upward. The flow of the pump is reduced until the pressure drops to the set constant pressure. At this time, the variable piston works in the new balance position. On the contrary, if the hydraulic damping (load) is reduced, the oil pressure drops instantly, the constant pressure valve inlet is opened large, the oil outlet is closed small, the oil pressure of the variable piston in the upper chamber is higher than that of the lower chamber, the variable piston moves down, the pump flow increases, until the pressure rises to the set constant pressure.

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