Pneumatic Pass-Thru Impact Wrench 25% Report - FIU Department of ...

EML 4905 Senior Design Project

A B.S. THESIS PREPARED IN PARTIAL FULFILLMENT OF THE

REQUIREMENT FOR THE DEGREE OF BACHELOR OF SCIENCE IN

MECHANICAL ENGINEERING

Pneumatic Pass-Thru Impact Wrench 25% Report

Ryan Lucia Felipe de la Cruz Milton Ceotto

Advisor: Dr. Benjamin Boesl

4/15/2014

This B.S. thesis is written in partial fulfillment of the requirements in EML 4905. The contents represent the opinion of the authors and not the Department of

Mechanical and Materials Engineering.

ETHICS STATEMENT AND SIGNATURES

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The work submitted in this B.S. thesis is solely prepared by a team consisting of Ryan Lucia, Felipe de la Cruz, and Milton Ceotto and it is original. Excerpts from others' work have been clearly identified, their work acknowledged within the text and listed in the list of references. All of the engineering drawings, computer programs, formulations, design work, prototype development and testing reported in this document are also original and prepared by the same team of students.

Ryan Lucia Team Leader

Felipe de la Cruz Team Member

Milton Ceotto Team Member

Dr. Benjamin Boesl Faculty Advisor

TABLE OF CONTENTS

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ETHICS STATEMENT AND SIGNATURES......................................................................................................... 1 TABLE OF CONTENTS..................................................................................................................................... 2 LIST OF FIGURES ............................................................................................................................................ 3 LIST OF TABLES.............................................................................................................................................. 4 1. ABSTRACT.................................................................................................................................................. 5 2. INTRODUCTION .....................................................................................................................................................6

2.1 PROBLEM STATEMENT .................................................................................................................... 6 2.2 MOTIVATION.................................................................................................................................... 7 2.3 LITERATURE SURVEY ........................................................................................................................ 8 3. PROJECT OBJECTIVE ................................................................................................................................ 10 4. CONCEPTUAL DESIGN ............................................................................................................................. 11 4.1 PROPOSED DESIGN ........................................................................................................................ 21 4.2 PROTOTYPE .................................................................................................................................... 23 5. TESTING & EVALUATION ......................................................................................................................... 24 6. PROJECT MANAGEMENT......................................................................................................................... 24 7. COST ANALYSIS........................................................................................................................................ 26 REFERENCES ................................................................................................................................................ 28

LIST OF FIGURES

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Figure 1 - Impact Ratchet Example ............................................................................................................ 11 Figure 2 - Impact Ratchet Exploded View ................................................................................................... 13 Figure 3 - Air Turbine Components................................................................ Error! Bookmark not defined. Figure 4 - Pin and Clutch Impact Mechanism Components........................... Error! Bookmark not defined. Figure 5 - Ratchet Head Components ............................................................ Error! Bookmark not defined. Figure 6 - Conventional Air Ratchet ............................................................... Error! Bookmark not defined. Figure 7 - Standard Ratchet and Socket......................................................... Error! Bookmark not defined. Figure 8 - Standard Socket Depth Limitation ................................................. Error! Bookmark not defined. Figure 9 - Pass-Thru Ratchet and Pass-Thru Socket....................................... Error! Bookmark not defined. Figure 10 - Pass-Thru Socket Infinite Depth................................................... Error! Bookmark not defined. Figure 11 - Standard Ratchet Application ...................................................... Error! Bookmark not defined. Figure 12 - Pass-Thru Socket Application....................................................... Error! Bookmark not defined. Figure 13 - Proposed Design .......................................................................... Error! Bookmark not defined. Figure 14 - Proposed Design, Selected View of Ratchet Head....................... Error! Bookmark not defined. Figure 15 - Project Timeline ........................................................................... Error! Bookmark not defined.

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LIST OF TABLES

Table 1 - Project Event Dates ...................................................................................................................... 24 Table 2 - Cost Analysis................................................................................................................................. 27 Table 3 - Cost Summary .............................................................................................................................. 27

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