Ed SERIES RELIABLE ELECTRO-HYDRAULIC THRUSTERS

TECHNICAL DESCRIPTION OF THE DEVICE:

Housing of the motor is constructed with eyelet connection and can be fixed on fundament by a bolt. There is also oil drain plug on the housing. Driving motor stator (squirrel cage asynchronous motor) is fitted in the housing. Connecting box for electrical supply is fixed on the housing hermetically separated from the inside of the housing. The rotor is fixed in the housing by its downside, and upside fitted in the turbine bearing. The turbine wheel is mounted on the rotor shaft. The guide cylinder with piston and rod is located upper the turbine.

In the guide cylinder is also screw for adjusting speed of the rod. On the upper side the guide cylinder is covered by upper housing, which with the motor housing forms a functional entirety.

The transformer oil fills interior of the device. The electric motor drives the turbine, which produce oil pressure downside of the piston. The piston and the rod are forced to move upward. The oil from upside of the piston returns through the holes to the turbine inlet. Hydraulic force is completely independent of the piston position, it depends only of the speed of turbine (current frequency), turbine size, and of the piston diameter. When lifting, motion is uniformly in the range of nominal force, independent of the load.

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