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Working principle

1-oil filter 2 - motor 3 - bidirectional gear pump 4 - overflow valve 5 - hydraulic control check valve 6 - double hydraulic control check valve 7 - safety valve 8 - tank p - oil outlet port T - return oil interface
Equipped with cbt2-g series bi-directional pumps, the bi-directional power unit is a small hydraulic system integrating relief valve, safety valve, dual hydraulic control check valve, motor, oil filter and oil tank. It has the characteristics of small volume, light weight and beautiful outsourcing. In the case of few general action requirements, the user only needs to configure the actuator (oil cylinder and oil motor) to directly use it. The double hydraulic control check valve in the power unit forms a hydraulic directional valve, which can directly realize the directional control of the double acting oil cylinder system by driving the gear pump through the forward and reverse rotation of the motor, Without adding any control elements (electromagnetic directional valve, etc.).
When the left oil circuit is connected to a cavity without piston rod of the oil cylinder as return oil, the return pressure of the oil cylinder is large and the speed is slow, the current of the DC motor becomes larger and the speed drops. In order to eliminate the above phenomenon, a hydraulic control check valve is added in the system. The opening pressure of the valve is 3Mpa, and the left oil circuit discharges oil through this valve.

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Technical Specifcations