To move extremely heavy or bulky loads through the overhead space in a facility, instead of through aisles or on the floor, an overhead crane (also called an industrial crane, crane, or overhead traveling crane is a machine that lifts, lowers and moves a load horizontally.
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.
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.
What is overhead gantry crane?
A gantry crane is a type of overhead crane with a single or double girder configuration supported by freestanding legs that move on wheels or along a track or rail system. … These are typically used for an outdoor application or below an existing overhead bridge crane system.
When was the overhead crane invented?
The first overhead cranes were steam powered and invented by the German company, Ludwig Stuckenholz, in the 1830’s and were mass produced in the 1840’s. But the first electric overhead crane did not appear until 1876, in the midst of the industrial revolution, in England.
What are the advantages of a crane?
Advantages of Mobile Cranes
- Provides Flexibility and Saves Space. One of biggest benefits mobile cranes have to offer is their level of flexibility and movability, especially in situations where multiple obstructions are present. …
- Offers Fast Setup. …
- Offers a Higher Level of Strength. …
- Provides a Cost-Effective Solution.
16 авг. 2018 г.
How does EOT crane work?
EOT Crane Working Principle
There are three working movements of EOT Crane- crane hook up and down lifting, trolley lateral movement and crane long travelling longitudinal motion. The motor exhibits a driving force of the hoisting mechanism. This transmits the power to high-speed shaft end.
Which motor is used in overhead crane?
While series DC motors consume more power than PMDC motors to produce their electromagnetic field, they’re powerful, efficient at high speeds and produce the most torque; hence, they are used for heavy duty winches. Shunt DC motors are used in constant speed applications, 18 such as reel drives.
What is the 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.
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).
How much is an overhead crane?
COMPLETE FREE STANDING OVERHEAD BRIDGE CRANE AND HOIST
|Model No.||Cap. tons||Price|
How much can a gantry crane lift?
They have spans of 140 metres (460 ft) and can lift loads of up to 840 tonnes (830 long tons; 930 short tons) to a height of 70 metres (230 ft).
What is meant by mobile crane?
A mobile crane is a cable-controlled crane mounted on crawlers or rubber-tired carriers or a hydraulic-powered crane with a telescoping boom mounted on truck-type carriers or as self-propelled models.
What stops the crane from falling over when it lifts something?
Why Don’t Tower Cranes Fall Over? This is mostly down to the concrete base, which is massive and needs to be poured weeks before the crane arrives. The triangulated cross-member structure of the mast gives it more stability and prevents bending. Plus, it’s anchored and bolted to the ground.
How much does a crane cost?
Mobile Crane ($125,000 – $525,000+) – A common type of crane that is transportable, but may have limited range compared to the telescopic crane.
How do you make an overhead crane?
Design Guide for Overhead Cranes
- A traveling base with a traveling rail on either side. …
- The End carriage on both sides which houses the wheel for the crane movement and also supports the top girder. …
- The Top Girder provides the side movement of the hoist and trolley.
29 мар. 2010 г.