What is EOT crane PDF?

An E.O.T. crane stands for Electric Overhead Travelling crane. this is used for handling & moving a maximum specified weight of the components called capacity of the crane within a specified area.

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.

How does EOT crane work?

EOT Crane Working Principle

1. … The ring gear of drum transmit driving force to drum set, then through wire ropes and pulleys drive crane hook up and down, so as to finish the lifting of the heavy objects up and down. 2. Transmission of crane Trolley traveling system: the driving force of crane trolley is from motor.

What is LT and CT in Crane?

LT motion : Long Travel Motion. CT motion : Cross Travel Motion. Bridge : the structural portion on which the trolley/crab moves. LT End carriage : Structure which houses Long Travel Wheels. CT End carriage : Structure which houses Cross Travel Wheels.

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Which type of brake is used in EOT crane drive?

Caliper Disc brakes are used for emergency duty and are on the low-speed side of the crane to prevent a load from falling in the event of s shaft breaking or transmission failure.

What is full form of EOT crane?

Electric overhead traveling crane or EOT crane is one of the most common types of overhead crane, or called bridge cranes, which consist of parallel runways with a traveling bridge spanning the gap.

What is DSL in EOT crane?

Direct Supply Line (DSL) refers to Angle Iron bus bars, supported on insulators, arranged length wise, at a safe height, in open to provide electric supply to EOT (Electric Overhead Travel) Cranes.

What are the main parts of a 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.

What cranes are used for?

A crane is a machine that is used to lift and move heavy loads, machines, materials, and goods for a variety of purposes. They are used in all different sectors of industry, from construction to manufacturing to shipbuilding and material loading.

How many types of cranes are there?

Mobile. There are four principal types of mobile cranes: truck mounted, rough-terrain, crawler, and floating.

What are 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.
  • Bridges.
  • Railroad Tracks.
  • Shipping Materials/Equipment.
  • Cars.
  • Scrap Metal.
  • Mobile Homes.
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5 нояб. 2015 г.

What is crab in EOT crane?

The lifting crab of a EOT crane is an independent two motion machine and consists of the hoist machinery built on to a frame, which is mounted on runner wheels, and driven by a motor through suitable gearing. The crab is also known as trolley. … The motion of the crab is derived from an electric motor.

What is creep speed of EOT crane?

CREEP SPEED: A very slow, constant, continuous, fixed rate of motion of the hoist, trolley, or bridge: usually established at 1% to 10% of the normal full load speed.

How does a thruster brake work?

Thruster brake is a device to retard the speed of moving machinery and to stop it accurately to the desired position. The braking force is applied to the brake shoe by a pre-stressed compression spring. The shoes press on the rotating brake drum retarding its speed and finally stopping it.

How does VFD dynamic braking work?

How dynamic braking works. With dynamic braking, the electrical energy generated during stopping is released as heat through a voltage regulated transistor and resistor. … When current is flowing to the resistor, the energy is turned into heat, which causes the DC voltage to decrease.

What is hoist motor?

A hoist is a device used for lifting or lowering a load by means of a drum or lift-wheel around which rope or chain wraps. It may be manually operated, electrically or pneumatically driven and may use chain, fiber or wire rope as its lifting medium. … Most hoists couple to their loads using a lifting hook.

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