Why does the elevator need a counterweight?

What is the role of counterweight in elevator? How do you calculate its mass?
#aftereffects #elevator #explainervideo #motiongraphics

[@caroleast9636]

A useful explanation of the use of a counterweight. It is, of course, very simplified. Not all lifts are driven through a worm gear. High speed lifts are direct drive, but the balance principle is the same. Most hydraulic lifts do not use a counterweight.

[@abdurrahmanm.el-sayed5561]

Thanks for the simple explanation!!

[@amandablair5632]

I find these videos very helpful and interesting

[@hieptran3916]

What software did you use to create this video?

[@seshu603]

super explain

[@chennareddyindla2349]

Good.

[@jasonburce9475]

Meaning the counter weight is more than weight the capacity of car?

[@netional5154]

yes. Weight of car + half the maximum number of people.

[@deepdays9068]

@@netional5154why half, why not whole?

[@netional5154]

@@deepdays9068 Did you watch the video? It's explained.

[@richarddavidjohn6803]

It’s worm gear unit( it’s a worm over wheel unit in the diagram) also there quite a few traction lift without counterweight nowadays using wrapped sheaves and ropes fixed to the bottom and top of a car working in a push and pull arrangement.

[@caroleast9636]

@@deepdays9068the motor only needs to shift half the load. It lifts that weight in the counterweight to move an empty car down or the same to lift a full car up