YCY14-1B 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.

 

The main part (see structure section) by the drive shaft drive cylinder rotation, so that the seven plungers evenly distributed on the cylinder revolve around the center line of the drive shaft, through the central spring will slide the slipper in the column slide assembly pressure on the variable head (or swash plate). In this way, the plunger reciprocates with the rotation of the cylinder block to complete the action of oil absorption and oil pressure. The outlet flow of the pressure compensated variable pump varies approximately with the outlet pressure according to the constant power curve within a certain range. When high pressure oil from the body through the channel (a), (b) and (c) into the inferior vena (d) and variable shell oil via channel (e), respectively, into the channel (f) and (h), when the spring force is greater than the oil duct (f) into the hydraulic thrust on the bottom ring servo piston area, the oil by (g) (h) to the upper chamber, Push the variable piston downward to increase the flow rate of the pump. When the hydraulic thrust on the annular area of the lower end of the servo piston is greater than the force of the spring, the servo piston moves up and blocks the channel (H), so that the oil in the (G) cavity passes through the (I) cavity and relieve the pressure. At this time, the variable piston moves up and the variable head Angle decreases, so that the flow of the pump decreases. Adjusting flow characteristic, can limit screw to the top first, according to the required flow and pressure range, adjust the spring to cover, make its flow began to change when the initial pressure meet the requirements, and will have limit screw until the ultimate pressure when the flow is no longer changes, the flow and pressure changes of the relationship between design decisions by the pump itself.

Model Specification：



Structure Chart：



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