Design and analysis of winch for extendable bundle puller

Saiful Azman, Muhammad Nurfareez (2022) Design and analysis of winch for extendable bundle puller. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Bundle pullers are useful in the power plant sector because they are used to extract the tube bundle from the heat exchanger. Bundle pullers are made up of a cradle that holds a mainframe and a power source, a sled that is attached to a tube bundle and has a hydraulic powered screw drive that pushes the sled on the mainframe, a hydraulic elevator on the mainframe that holds and adjusts the position of the tube bundle, and an extension that adjusts the length of the mainframe. Bundle pullers for extracting exchangers already have a variety of designs for the lifting frame. There are several designs that use merely a beam with a string tied to it, as well as the current design where the winch could extract the bundle tube. The goal of this project is to design a winch capable of extract a variety of tube bundles weighing up to 80 tonnes. Measurements of the bundle tube were taken as a reference for the next design of bundle puller. The maximum load that the chosen design of the winch can hold was determined using Finite Element Analysis (FEA) with ANSYS. The FEA results from the winch will decide the size of the gear and motor power to be used for the winch bundle puller.

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