IJMTES – DESIGN AND FABRICATION OF FIXTURE FOR CHANGING THE CRANE TONG JAW BIT

Journal Title : International Journal of Modern Trends in Engineering and Science

Author’s Name : A Peramanan | G Mathankumar | V Karthikeyan | N Kathiravan | K Madhankumar

Volume 02 Issue 03  Year 2015 

ISSN no: 2348-3121

Page no: 10-13

Abstract— Slabs are unloaded and charged in reheating furnace using cranes in the slab yard area. Slab yard crane have jaw bits in each corner to grip the slab during loading and unloading. Due to prolonged usage, the tong jaw bits get chipped off or worn out. So it is replaced with salvaged one. By continuing the crane operation without changing the worn out jaw bits, as it may lead to slab falling due to poor grip. Five employees are required to lift, position and change the worn out tong jaw bits. It takes more time due to inherent size. To reduce the man power, time consumption and eliminate demurrage a fixture is designed and fabricated for changing the worn out jaw bit.

Keywords— jaw bits, crane, worn out, fixture

Reference

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[5]. Hiram E. Grant “Jig and fixtures”, non-standard clamping devices, TATA McGraw-Hill Edition.
[6]. Production engineering, “P.C. Sharma”, S.CHAND & company ltd.

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