Excavator Boom Design
UNIVERSITY OF THE WEST INDIES
MENG 2005 – ENGINEERING DESIGN 1
LECTURER – DR. BRIDGE
GROUP PROJECT – DESIGN OF A MINI – EXCAVATOR
DATE SUBMITTED – 19TH NOVEMBER, 2010
GROUP NAME – THE A-TEAM
GROUP MEMBERS GERARD MOHAMMED JUSTIN KALLOO SHIV RAJ BALROOP ADRIAN PIRTHYSINGH 809000675 809002400 808000136 809000847
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TABLE OF CONTENTS
SECTION
Introduction Literature Review Definition of Problem Functional Analysis Final Design Project planning Failure Modes, Effects and Analysis Calculations Discussion and Interpretation of Findings Individual Attachments References List of Figures and Tables Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Morphological Table Part 1 Morphological Table Part 2 Evaluation of Alternatives Part Listing Process Planning table Summary of Calculations Functional Decomposition Diagram Sketch of Force analysis for digging Sketch of boom calculations Sketch for stick calculations Sketch for Tipping calculations
PAGE 1 2 5 7 10 12 13 19 33 34 42
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INTRODUCTION
On any construction site, the excavator is one of the most important pieces of equipment. Excavators are designed to move considerable amounts of soil and earth. They consist of a backhoe and cab mounted on a pivot (a rotating platform) atop an undercarriage with tracks or wheels. Excavators are used in several tasks on construction areas, such as: brush cutting (with hydraulic attachments), digging of trenches, holes, foundations, demolition, general grading (landscaping), heavy lifting, mining and river dredging. Excavators come in a wide range of sizes, spanning from large excavators weighing in at around 30 tonnes to mini excavators weighing around 5 tonnes. This project deals with the design of a mini excavator to be used on a small construction site. To increase the versatility of the machine, the excavator is designed with the capability of attaching different work tools. Our particular design contains four
MENG 2005 – ENGINEERING DESIGN 1
LECTURER – DR. BRIDGE
GROUP PROJECT – DESIGN OF A MINI – EXCAVATOR
DATE SUBMITTED – 19TH NOVEMBER, 2010
GROUP NAME – THE A-TEAM
GROUP MEMBERS GERARD MOHAMMED JUSTIN KALLOO SHIV RAJ BALROOP ADRIAN PIRTHYSINGH 809000675 809002400 808000136 809000847
i
TABLE OF CONTENTS
SECTION
Introduction Literature Review Definition of Problem Functional Analysis Final Design Project planning Failure Modes, Effects and Analysis Calculations Discussion and Interpretation of Findings Individual Attachments References List of Figures and Tables Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Morphological Table Part 1 Morphological Table Part 2 Evaluation of Alternatives Part Listing Process Planning table Summary of Calculations Functional Decomposition Diagram Sketch of Force analysis for digging Sketch of boom calculations Sketch for stick calculations Sketch for Tipping calculations
PAGE 1 2 5 7 10 12 13 19 33 34 42
ii
iii
INTRODUCTION
On any construction site, the excavator is one of the most important pieces of equipment. Excavators are designed to move considerable amounts of soil and earth. They consist of a backhoe and cab mounted on a pivot (a rotating platform) atop an undercarriage with tracks or wheels. Excavators are used in several tasks on construction areas, such as: brush cutting (with hydraulic attachments), digging of trenches, holes, foundations, demolition, general grading (landscaping), heavy lifting, mining and river dredging. Excavators come in a wide range of sizes, spanning from large excavators weighing in at around 30 tonnes to mini excavators weighing around 5 tonnes. This project deals with the design of a mini excavator to be used on a small construction site. To increase the versatility of the machine, the excavator is designed with the capability of attaching different work tools. Our particular design contains four