How Do Construction Hoists Work?
Construction hoists operate on a relatively simple mechanical principle. Here's a basic breakdown:
l Power Source: The hoist is powered by an electric motor, hydraulic system, or pneumatic system, as discussed in the previous response.
l Drum and Cable: A large drum is mounted on a vertical shaft. A steel cable is wrapped around the drum.
l Hoist Cage: The hoist cage, or platform, is attached to the end of the cable.
l Counterweight: To balance the weight of the hoist cage and its load, a counterweight is attached to the other end of the cable. This counterweight helps to reduce the power required to lift the load.
l Hoist Frame: The entire system is supported by a sturdy steel frame that is anchored to the ground.
To operate the hoist:
l The operator activates the control panel to engage the power source.
l The motor turns the drum, causing the cable to unwind and the hoist cage to ascend.
l As the hoist cage rises, the counterweight descends, balancing the load.
l To lower the hoist cage, the operator reverses the direction of the motor, causing the drum to turn in the opposite direction.
English
Français
Español
Português
Deutsch
Türkçe
Dutch
Italiano
Russian
Romaian