DPZ-500 Electrohydraulic Sluice Gate with Electrohydraulic Push Rod

I. Overview:

　PZ series electric hydraulic push rod flat gate (shortened to electric hydraulic push rod) is suitable for reciprocating linear (or reciprocating rotational) movement to a certain angle. It serves as the primary control equipment for flow and throughput of powders, granular materials, particle materials, and small pieces. It is also applicable in long-distance and high-altitude hazardous areas, and can be connected to computers for centralized (programmed) control. It is now widely used in industries such as metallurgy, mining, coal, electricity, machinery, grain, cement, chemicals, water conservancy, and transportation, serving as an indispensable general power source.

Section II: Principles and Functions:

　　1. Working Principle: The electro-hydraulic push rod is powered by an electric motor, which, through its forward (reverse) rotation, drives the hydraulic oil to be output as pressure oil through a bidirectional gear pump. The oil then travels through an integrated oil circuit block and is delivered to the working cylinder, thereby achieving reciprocating movement of the piston rod.

　　2. Overload Automatic Protection Function: During the operation of the electro-hydraulic actuator, if the external force on the piston rod exceeds the rated output force or the piston reaches the end position, the motor continues to rotate. At this point, the oil pressure in the circuit increases to the set pressure, and the overflow valve quickly and accurately discharges, achieving overload automatic protection. Although the motor is rotating, it will not be damaged.

　　3. Self-locking Function: The hydraulic push rod's oil circuit module is designed with a pressure self-locking mechanism. Once the motor stops rotating, the piston rod immediately remains at a certain position, and the pressure oil maintains pressure.

　　4. Speed can be infinitely adjusted within the designated speed range, as per customer requirements.

　　5. Can be infinitely adjusted for thrust and pull force within the designated output power range, as per customer requirements.

　　6. The travel can be infinitely adjusted within the designated travel range according to customer requirements.

Section 3: Comparison with Similar Products:

Electro-hydraulic push rods offer the following advantages compared to electric push rods, electric actuators, hydraulic cylinders, and pneumatic cylinders:

　　1. Features reliable overload automatic protection, ensuring the motor operates normally even under overload or at the end of travel, without damaging or burning other components. Electric actuators and electric actuators simply can't compete.