Category 2 and 3 Crane Components The principal parts of overhead traveling cranes are: bridge girders, end trucks, trolley with hoisting mechanism, and operator’s cab or pendant control. Critical Crane Components Careful repair and maintenance are essential to safe crane operations.
What are the 5 principal parts of Category 1 and Category 4 cranes?
Crane Components The principal parts of most Category 1 and Category 4 cranes are: the boom, machinery house, roller path or rotate bearing, supporting structure, and travel system.
What are the parts of the crane?
The Various Functions of Mobile Crane Parts
- The Driving Components. In any mobile crane, one of the common components will be the driving system used to make it mobile. …
- The Operator’s Cabin. The operator’s cabin houses all of the crane’s controls. …
- The Boom. …
- Hoist and Hook. …
- Hydraulic Pump. …
- Outriggers and Counterweights.
6 февр. 2020 г.
How does an overhead crane work?
What is an Overhead Crane? Overhead cranes cover a rectangular area, moving a load side to side and backward and forward. The lifting device, called a hoist is mounted on a trolley for horizontal movement across a bridge beam connected to one or more horizontal girders which are supported at either end by end trucks.
What are the components of a crane runway system?
The runway system of an overhead crane can include the beams, columns, and rails that the crane runs along. The bridge or girder end trucks run along a rail which is secured to the top of the runway beams.
Who can operate a crane?
Operators of most cranes above 2,000 lb. capacity when used in construction will need to be either certified by an accredited crane operator testing organization, such as the National Commission for the Certification of Crane Operators (NCCCO), or qualified through an audited employer program [§ 1926.1427(a)].
What part of the crane is used to lift and lower the load?
Hoist – A mechanical unit that is used for lifting and lowering a load via a hook or lifting attachment.
What is a crane boom called?
Boom. The most recognizable part of a crane, the boom is the arm of the crane that holds the load and allows the crane to move the load closer to or away from the crane by lowering and raising the Boom.
What is a crane on a ship called?
A crane vessel, crane ship or floating crane is a ship with a crane specialized in lifting heavy loads. … On a sheerleg crane, the crane is fixed and cannot rotate, and the vessel therefore is manoeuvered to place loads.
What is the boom of a crane?
The Boom: The boom is probably the crane’s most outstanding and identifiable feature – this is the long, telescopic or fixed arm that is used to move objects. The Counterweights: The crane’s counterweights are near the cab’s exterior – they prevent the crane from becoming unbalanced when lifting heavy loads.
What are the major advantages of overhead Travelling Crane?
What are the Benefits of Overhead Cranes?
- Increased Safety. Forklifts carry the risk of imprecise stacking, dropping goods as well as accidents (due to crashing). …
- Improved Load Control. …
- Avoid Floor Obstructions. …
- Improved Ergonomics. …
- Easy Lifting of Loads. …
29 июл. 2016 г.
How do you maintain an overhead crane?
Ensure there are no loose, broken, or damaged parts on the hoist, trolley, bridge, runway, or electric systems. Check that the wire rope is reeved and seated in the drum grooves properly. Verify that the bottom block is not twisted (no two lengths of wire rope should touch).
What are the three functions of a crane?
The main purpose of a crane is to lift extremely heavy amounts of weight. A typical crane is equipped with a hoist rope, wire ropes or chains and sheaves.
Modern day cranes are used for:
- Construction Materials.
- Railroad Tracks.
- Shipping Materials/Equipment.
- Scrap Metal.
- Mobile Homes.
5 нояб. 2015 г.
What are the three major components of a typical overhead crane system?
Category 2 and 3 Crane Components The principal parts of overhead traveling cranes are: bridge girders, end trucks, trolley with hoisting mechanism, and operator’s cab or pendant control.
How many types of EOT crane are there?
There are various types of EOT (electric overhead travel) cranes 1. Single Girder EOT Crane 2. Double Girder EOT Crane Single Girder EOT Crane – Sparkline manufactures and supplies a wide range of single girder EOT cranes in various configurations according to customer requirements.
What does OSHA consider a crane?
A crane is a machine for lifting and lowering a load and moving it horizontally, with the hoisting mechanism an integral part of the machine. … Floor-operated crane means a crane which is pendant or nonconductive rope controlled by an operator on the floor or an independent platform.