What are the 3 basic components of an overhead crane?

What are the 3 basic components of an overhead crane?

The principal parts of overhead traveling cranes are: bridge girders, end trucks, trolley with hoisting mechanism, an operator’s cab or pendant control. Careful repair and maintenance are essential to safe crane operations.

How do you stop an overhead crane from swinging?

You should familiarize yourself with how to stop it. In some cases, you can do it by gradually pulling your throttle in the opposite direction of the way your crane is swinging. In others, moving your boom up and down repeatedly will steady the crane. The key is to counteract the motion of your crane to get it to stop.

What are the parts of an overhead crane?

The Parts of a Crane – all you need to know

• Hook. The load is supported using a hook which connects to the hoist and to the end effector.
• Hoist.
• Trolley.
• Bridge.
• Columns.
• Runway.
• End Trucks.
• Electrification.

What problems could arise during crane operations?

If overhead crane is out of alignment and skewing then it can lead to significant stress and damage to whole crane system. While construction of the crane, forces applied can also cause stress in the crane and hence this type of stress can result in accidents, crane failure, productivity loss and replacement of loss.

How do you control a crane?

A crane can be controlled by an operator on the floor using a push button pendant system that is attached to the crane itself, or a wireless control that utilizes a radio transmitter and receiver.

What are the parts of a crane called?

Here are the different parts of a crane.

• Hook. Though all parts of a crane are essential to its ability to lift and move heavy loads, none of it would be possible without the hook.
• Hoist. The hoist is the part that creates lift in a rigging system.
• Boom.
• Jib.
• Counterweights and Outriggers.

What is a crane center pin?

The white line represents the range of the crane center pin location. The red area represents the allowable area for the crane carrier. In other words, the crane center pin will be placed somewhere on the white line, and the entire carrier of the crane will be placed inside the red area.

What does overhead lifting mean?

Section 3.4 of the definitions states, Overhead Lifting: that process of lift- ing that would elevate a freely suspended load to such a posi- tion that dropping the load would present a possibility of bod- ily injury or property damage.

What is the difference between a lift and hoist?

In simple terms, a hoist is a construction device that typically uses a pulley system to raise objects upward while a construction lift typically includes an aerial platform maintained by a specific form of extension and fitted on a vehicle. …

How does an operator control an overhead crane?

The operator holds the control pendant and walks with the crane and the load as he moves it down the runway. The operator can also laterally position the hoist and control the up and down lifting movement of the hook using the pendant control.

When to put bumpers on an overhead crane?

The bumpers shall have sufficient energy absorbing capacity to stop the crane when traveling at a speed of at least 40 percent of rated load speed. The bumper shall be so mounted that there is not direct shear on bolts. Bumpers shall be so designed and installed as to minimize parts falling from the crane in case of breakage.

How does a push button crane control work?

A pendant control hangs down from the hoist or off of a separate festoon track and allows the operator to control the crane and the load as it moves down the runway. A handheld controller with push buttons is directly wired into the hoist or a separate festoon track and hangs down to be used by the operator.

What are the three types of crane movement?

The three types of movement that are influenced by a crane’s control system are: Crane motion – moving the crane up and down the runway (s) With pendant or radio controls, you can operate a crane to lift, position, and lower the load with just one person. There are two ways that a crane can be operated: