Shock absorbers (II): types, location in an elevator
September 17, 2010
According to EN 81.1, there are three types of shock absorbers: energy storage, energy storage with return motion damping, and energy dissipation.
Label
- Hydraulic lifts
Function of shock absorbers. Types of shock absorbers (I)
September 10, 2010
What are they?
Shock absorbers (buffers in English) are an organ designed to serve as a deformable end-of-travel stop and consist of a fluid or spring braking system (or other equivalent device).
Gap: characteristics and requirements
July 16, 2010
The shaft is the space exclusively intended for the movement of the elevator and the counterweight (if it is electric), but it cannot be used for any other installation other than the elevator.
Pit: characteristics and requirements
July 9, 2010
The lower part of the enclosure, below the level of the last stop, is called the pit. The floor must be smooth and substantially level.
Biodegradable fluids
July 2, 2010
Due to the growing interest in the environment and new legislation, biodegradable fluids are becoming increasingly important in the lifting sector. They can be classified into 3 categories according to their base.
Cavitation in hydraulic pumps: what it is, why it occurs and how to avoid it
June 11, 2010
The phenomenon of cavitation occurs when the fluid has difficulty entering (sucking) the pump suction duct, causing the pressure in this duct to drop. If the pressure is lower than the vapor pressure of the fluid itself, this will lead to the formation of bubbles.
What is a direct and star-delta start?
April 30, 2010
The connection of the motors used to operate elevators, hoists, lifts, etc., which are the ones that do the “hard work” in the installation, produce unnecessary intensity peaks on a daily basis.
Maintenance of hydraulic oil and tank of a hydraulic power station
April 23, 2010
The tank of a hydraulic power station, in itself, is one of the main elements of the hydraulic circuit, since it stores and treats the hydraulic fluid through which energy is transmitted to the different control and command components.
Mechanical safety device: for forklifts and car lifts (I)
April 9, 2010
Pawl Device is a safety device with a mechanical anti-drift system. Its function is to provide greater safety in loading/unloading operations by always maintaining the cabin-floor level.
Electronic technology applied to hydraulic elevators
March 26, 2010
Today, electronic technology has allowed hydraulic elevators to take a great step in the field of energy efficiency, thereby reducing their consumption.