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Chapter 1 Introduction 1

1.1¡¡An Overview of the Development of Electric Locomotives in China 2

1.2 A Summary of the HXD Series of AC Drive Electric Locomotives 3

1.3 The HXD1D Electric Locomotive 4

1.4 The HXD3 Electric Locomotive 6

Chapter 2 Electric Locomotive Carbody 9

2.1 Locomotive Carbody Structure 10

¡¡¡¡2.1.1¡¡Overall Composition of the Electric Locomotive 10

¡¡¡¡2.1.2¡¡Functions and Classification of the Locomotive Carbody 11

¡¡¡¡2.1.3¡¡The HXD1D Electric Locomotive Carbody 12

¡¡¡¡2.1.4¡¡The HXD3 Electric Locomotive Carbody 16

2.2¡¡Locomotive Carbody Equipment Arrangement 22

¡¡¡¡2.2.1¡¡Carbody Equipment Arrangement of the HXD1D Electric Locomotive 22

¡¡¡¡2.2.2¡¡Carbody Equipment Arrangement of the HXD3 Electric Locomotive 28

2.3 Ventilation and Cooling System 34

¡¡¡¡2.3.1¡¡The Types of Ventilators 34

¡¡¡¡2.3.2¡¡Ventilation and Cooling System of the HXD1D Electric Locomotive 36

¡¡¡¡2.3.3¡¡Ventilation and Cooling System of the HXD3 Electric Locomotive 40

2.4 Air Pipeline System 45

¡¡¡¡2.4.1¡¡Air Pipeline System of the HXD1D Electric Locomotive 45

¡¡¡¡2.4.2¡¡Air Pipeline System of the HXD3 Electric Locomotive 50

2.5 Coupler and Draft Gear 57

¡¡¡¡2.5.1¡¡General Structure of the Coupler and Draft Gear 57

¡¡¡¡2.5.2¡¡Coupler and Draft Gear Composition of the HXD1D Electric Locomotive 65

¡¡¡¡2.5.3¡¡Coupler and Draft Gear Composition of the HXD3 Electric Locomotive 67

Chapter 3 Electric Locomotive Bogie 77

3.1 An Overview of the Bogie 78

¡¡¡¡3.1.1¡¡Common Features of Bogie 78

¡¡¡¡3.1.2¡¡Structural Characteristics of the HXD1D Electric Locomotive Bogie 80

¡¡¡¡3.1.3¡¡Structural Characteristics of the HXD3 Electric Locomotive Bogie 81

3.2 Bogie Frame and Auxiliary Devices 82

¡¡¡¡3.2.1¡¡Classification and Composition 82

¡¡¡¡3.2.2¡¡Bogie Frame of the HXD1D Electric Locomotive 83

¡¡¡¡3.2.3¡¡Bogie Frame of the HXD3 Electric Locomotive 84

¡¡¡¡3.2.4¡¡Auxiliary Devices 85

3.3 Elastic Suspension Mechanism 90

¡¡¡¡3.3.1¡¡Axle Box 90

¡¡¡¡3.3.2¡¡Primary Suspension Device 94

¡¡¡¡3.3.3¡¡Secondary Suspension Device 99

3.4 Wheelset Driving Device 102

¡¡¡¡3.4.1¡¡Wheelset 102

¡¡¡¡3.4.2¡¡Motor Suspension Gear 109

¡¡¡¡3.4.3¡¡Driving unit 116

3.5 Traction and Braking Devices 123

¡¡¡¡3.5.1¡¡Traction Rod Device 123

¡¡¡¡3.5.2¡¡Foundation Brake Rigging 131

Chapter 4 Assembly and Commissioning of the Electric Locomotive 147

4.1 Main Technical Parameters 148

¡¡¡¡4.1.1¡¡Main Structural Parameters 148

¡¡¡¡4.1.2¡¡Main Performance Parameters 149

¡¡¡¡4.1.3¡¡Technical Parameters Comparison 150

¡¡¡¡4.1.4¡¡Axle Load Transfer 154

4.2 Final Assembly and Commissioning 155

¡¡¡¡4.2.1¡¡In-Depot Unwheeling and Completion of the HXD1D Electric Locomotive 155

¡¡¡¡4.2.2¡¡Routine Maintenance Test of the HXD1D Electric Locomotive 157

¡¡¡¡4.2.3 Final Assembly and Commissioning of the HXD3 Electric Locomotive 158

Chapter 5 Electric Locomotive Maintenance During Operation 163

5.1 Works of Service Preparation 164

¡¡¡¡5.1.1¡¡Running Preparation Method 164

¡¡¡¡5.1.2¡¡Preparation Working Flow 165

5.2 Inspection During Preparation 167

¡¡¡¡5.2.1¡¡General Rules 168

¡¡¡¡5.2.2¡¡Inspection Method 168

¡¡¡¡5.2.3¡¡Precautions 170

¡¡¡¡5.2.4¡¡Routine Inspection 171

¡¡¡¡5.2.5¡¡Scheduled Inspection 172

¡¡¡¡5.2.6¡¡Sequence of Inspection 173

5.3 Case Analysis of Locomotive Failures 174

Appendix A¡¡Glossary 186

References 198