International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395 -0056
Volume: 04 Issue: 03 | Mar -2017
p-ISSN: 2395-0072
www.irjet.net
Design and Analysis of Crane Hook with Different Materials Vinayak S. Kardile[a], Ejaj R. Khan[b], Pravin D. Dhakane[c], Akash P. Gore[d], Bhushan D. Mahajan[e] Student of B. E. Mechanical, G.H.Raisoni C.O.E.M., Chas, Ahmednagar[a],[b],[c]&[d] Assistant professor, G.H.Raisoni C.O.E.M., Chas, Ahmednagar [e] ----------------------------------------------------------------------------***-------------------------------------------------------------------------amount of stresses, which are ultimately leading to failure. Fatigue of the crane hook is happens due to continuous loading and unloading of crane. If the crack is detected in the crane hook, it can cause fracture of the hook. Due to this there are chances of serious accident. Bending stress, tensile stress, weakening of the hook due to wear, plastic deformation due to overloading, excessive thermal stresses are some of the other reasons of failure.
Abstract - Crane hook is significant component used for lifting the load with the help of chain or wire ropes. Crane hooks are highly liable components and are always subjected to bending stresses which leads to the failure of crane hook. Failure of a crane hook mainly depends on three major factors i.e. dimension, material, overload. To minimize the failure of crane hook, the stress occurred in it must be studied. Structural failure of the crane hook may happen as a crane hook is subjected to continuous loading and unloading. In this paper the design of the hook is done by analytical method for the different materials like high strength low alloy steel and Structural Steel. CATIA software is used for modelling the crane hook and ANSYS software used to find out the stresses induced in it. This result helps us for determining of stress in existing model. By predicting the stress concentration area, the hook working life increase and reduce the failure stress.
2. MATERIAL SELECTION Structural Steel High Strength Low Alloy Steel ASTM Grade 60(Grey cast iron)
3. ANALYTICAL STRESS CALCULATION
Key word: - Crane hook, CAD software, CAE software (ANSYS)
Components having curved portions are frequently subjected to axial or bending loads or to a combination of bending and axial loads. The stress due to curvature become greater and the results of the equations of straight beams when used becomes less satisfactory, with the reduction in the radius of curved portion. For relatively small radii of curvature, the actual stresses may be several times greater than the value obtained for straight beams. The various dimensions for crane hook are taken as follows:
1. INTRODUCTION A Crane hooks are components which are always subjected to failure due to accumulation of large amount of stresses which can eventually lead to its failure. Crane hooks are generally used to lift the heavy load in industries and constructional sites. A crane is a machine, equipped with a hoist, wire ropes or chains and sheaves used to lift and move heavy material. Cranes are mostly employed in transport, construction and manufacturing industry. Overhead crane, mobile crane, tower crane, telescopic crane, gantry crane, deck crane, loader crane, jib crane, are some of the commonly used cranes. A crane hook is a device used for lifting and grabbing up the loads by means of a crane. It is basically a hoisting fixture designed to engage a link of a lifting chain or the pin of a cable socket. Crane hooks with circular, trapezoidal, rectangular and triangular cross section are commonly used. So, crane hook must be designed and manufactured to deliver maximum performance without failure.
1) Bed diameter √ , mm Where, P=load,
X=constant ranging between 12 to 24.For economic design, x should be as minimum as possible. 2) Throat of Hook (J):
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Impact Factor value: 5.181
mm
3) Depth of cross-section area: mm
The crane hooks are vital components and are most of the time subjected to failure due to accumulation of large
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