Crane Design Calculation Software

Crane Design Calculation Software

Overhead Crane Design Calculation

Gear Box - The speed reduction is obtained by using helical gearbox. The greaboxes are totally enclosed type and the lubrcation of gears & pinion is achieved by splash lubrication of the oil within the enclosure. For cross travel motion vertical gearbox can also be used.

In case of three stage reduction vertical gearbox an oil pump is fitted to ensure lubrication of all gears. The service factor for gearbox is generally 1.7 times the torque rating of drive.Coupling - Each motor is connected to its gearbox by a flexible coupling.

The service factor for coupling is normally 1.7 times the torque rating of drive. For Hoisting mechanism output shaft of gearbox is connected to the drum through either geared coupling or barrel coupling.

For CT or LT mechanism half geared couplings with floating shaft is provided between the wheel and the gearbox.Brake- D.C. Electromagnetic brakes or D.C. Thruster brakes are provided to stop motion of different mechanism of the crane. Brake generally have rating of 1.5 times the calculated torque rating of drive. For hot metal handling cranes, hoist mechanism is provided with two brakes per motor.Rope Drum- Drum for holding wire rope is fabricated from rolled steel plates or alternately made from cast steel.

The diameter of drum is depended on the diameter of wire rope selected. The depth and pitch of grooves on drum is also dependent on the size of wire rope. Fabricated drum is stress relieved and machined for making grooves.

Rope drum may be flanged at ends depending upon its design.Sheaves/ Pulleys - During hoisting/ lowering operation of the crane, the wire rope rolls on sheaves. The number of sheaves is dependent upon the number of rope falls. The diameter of sheave is dependent on the diameter of wire rope. Equalizer sheave/ bar is provided on the trolley to maintain rope alignment. Sheaves mounted on trolley are called top block and sheaves mounted on hook assembly are called bottom block. Rope sheaves are made from either cast steel or are fabricated from rolled steel.Wire Rope- The diameter of wire rope is calculated based on the load to be lifted and number of rope falls selected.

The length of wire rope is dependent on the height of lift of crane. For cranes operating in hot ambience steel core rope is used. The strength/ grade of wire rope is selected from catalogue of wire rope manufacturers. The diameter of wire rope selected plays vital role in calculation of rope drum diameter & length.Hook/ Hook Block- There are different types of hook such as C-Shank hook, Ramshorn hook, Laminated hook. Selection of hook type is dependent on the application of crane.

Hook for hanging load are made from forged steel. Hook is assembled on the bottom block of crane. Hook block sheaves are provided with rope guard to retain the rope in the sheave groove.Wheels- Wheels of crane are made from forged/ rolled/ cast steel. The diameter of wheel is calculated from the weight of the trolley and crane.

For cranes of larger capacity the number of wheels are increased to reduce the wheel diameter. Cross Trolley wheels are double flanged.

For Long Travel motion flange-less wheels with guide rollers are also used. Wheels are mounted on anti-friction roller bearing which is housed in `L' shaped bearing brackets.AdvertisementInterested in UsConnect with Us@ 2019 Copyright SAMPRA. All Rights Reserved.

Crane Design Calculation Software Download

Spreader Bar Basic is a calculator that calculates forces on spreader bar pipe, slings, and shackles for a wide range of lifting configuration. Loads are calculated and assessed based on ASME BTH-1 calculations. Three options of shackle types are available to choose from, as well as three options of sling types, 1-Part Mechanical Spliced IWRC (EIPS, 6X19), STRAND Mech. Splice Grommet IWRC (EIPS, 6X19), and Polyester Endless Round slings. Top sling configurations include vertical and basket. Unit selection (US Customary, British Imperial, & Metric). AISC Pipe and HSS round shapes, in US Customary, British Imperial, and Metric units.

Gantry Girder Design Software

Integrated worksheet calculation tab providing details of spreader bar calculations Spreader Bar Chart Calculator. Report generation for graphical reporting of results. Spreader Bar Deflection Calculation, Sling capacity reduction calculation based on D/d and effective bearing area of the shackle. Spreader Bar Plus 2.0 calculates loads on spreader bars when lifting with offset CGs. The loadings are calculated for pipe, slings, and shackles, while calculating and reporting ASME BTH-1 results. Three shackle type are available to choose from, as well as three options of sling types, 1-Part Mechanical Spliced IWRC (EIPS, 6X19), STRAND Mech.

Splice Grommet IWRC (EIPS, 6X19), and Polyester Endless Round slings. With configurations of vertical and vertical basket. SMART Rigger Software's Lift Planner was developed to meets the ASME P30.1 requirements.

Qtcf.dll file. .

ASME code for Planning for Load Handling Activities. Lift Planner consists of a Lift Data sheet, & Pre-Lift Safety Check List.Lift Data Sheet (LDS) summarizes the essential details of a lifting operation in a standardized, easy to read form. Here's what people are saying about SMART Rigger Software'. I have been using various versions of a “rigging calculator” for over a decade, and the SMART Rigger Software Spreader Bar Calculator is without a doubt the most complete version I have used. This program definitely covers all areas of concern when evaluating and designing a BTH rigging arrangement. The areas of input are easily navigated after a brief period of self-training, and an extremely thorough summary page neatly organizes the outputs for distribution to clients, and/or internal recordkeeping purposes. In my opinion, this program is a “must-have” for any rigging department.'

Stephen Hitchcock General Manager – Heavy Lift Rental Division.

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