Electric Hydraulic Push Rod
Recommended by Darui Electric
Electric Hydraulic Push Rod is suitable for applications requiring push-pull linear motion (or reciprocating rotation at a certain angle), as well as for lifting, lowering, or clamping workpieces. It can also be used for centralized or programmed control in remote, high-altitude, and hazardous areas. It has been widely applied in metallurgy, mining, coal, electric power, machinery, grain, cement, chemical,
water conservancy, transportation, and other sectors, serving as a universal power source.
Advantages
1. It can start with load, which is difficult for electric push rods.
2. It has overload protection capability and will not damage the motor or mechanical parts.
3. The same electro-hydraulic push rod can have infinitely variable speed for both pushing and pulling forces, thus offering a wide range of driving forces, which is incomparable to electric push rods and pneumatic systems.
4. Under the same thrust and speed, it consumes only half the electrical energy of an electric push rod.
5. This product adopts full hydraulic transmission, with sensitive action and stable operation. It can effectively buffer external impact forces, and the stroke limit is accurate, which cannot be achieved by pneumatic cylinders or electric push rods.
6. The electro-hydraulic push rod adopts an integrated mechanical, electrical, and hydraulic fully sealed structure. The working oil circuit circulates in a pressure-free sealed steel cylinder, which is compact, leak-proof, and easy to install and maintain. In harsh working environments, it does not absorb dust or water, does not corrode internally, and has a longer service life than pneumatic cylinders and electric push rods.
7. Low investment: pneumatic cylinders require an air compressor station, hydraulic cylinders require a hydraulic station, while electro-hydraulic push rods do not need any auxiliary equipment.
Working Principle and Structure
1. Working Principle
The electro-hydraulic push rod uses an electric motor as the power source, which drives a bidirectional gear pump to output pressure oil. Through the control of the oil circuit manifold, the oil reaches the cylinder, achieving reciprocating motion of the piston rod.
2. Overload Automatic Protection Function
When the electro-hydraulic push rod is working, if the external force on the piston rod exceeds the set output force or the piston reaches the end while the motor is still running, the oil pressure in the circuit increases to the set limit, and the relief valve quickly and accurately relieves pressure, achieving overload protection. The motor may still run, but it will not burn out.
3. Self-locking Function
In the oil circuit manifold of the electro-hydraulic push rod, a pressure self-locking mechanism is designed. When the motor stops, the piston rod can self-lock in a certain position, maintaining pressure.
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
