Table of Contents

1 -  AS 3751-2005 UNDERGROUND MINING-SLOPE HAULAGE-COUPLINGS, DRAWBARS, AND SAFETY CHAINS
4 -  PREFACE
5 -  CONTENTS
6 -  1 SCOPE
6 -  2 REFERENCED DOCUMENTS
7 -  3 DEFINITIONS
7 -  3.1 Conveyance
7 -  3.2 Coupling
7 -  3.3 Coupling pin
7 -  3.4 Drawbar
7 -  3.5 Pivot pin
7 -  3.6 Safe working load
7 -  3.7 Safety chain
7 -  3.8 Shall
7 -  3.9 Should
7 -  3.10 Slope haulage
7 -  3.11 Static factor of safety
8 -  3.12 Statutory authority
8 -  3.13 Ultimate load
8 -  4 MATERIALS
8 -  4.1 Component type designation
8 -  4.2 Type A components
8 -  4.3 Type B components
8 -  4.4 Type C components
8 -  4.5 Type D components
9 -  4.6 Safety chains
9 -  5 DESIGN
9 -  5.1 Static factor of safety
9 -  5.2 Axially loaded threaded components
9 -  5.3 Safety chains
9 -  6 MANUFACTURE
9 -  6.1 All components
9 -  6.2 Type A components
9 -  6.3 Safety chains
10 -  6.4 Threads and nut locking
10 -  6.5 Protective coatings
10 -  6.5.1 Type A and Type C component
10 -  6.5.2 Type B and Type D components
10 -  7 TESTING
10 -  7.1 General
10 -  7.2 Proof load test
10 -  7.2.1 Procedure
10 -  7.2.2 Pass criterion
10 -  7.3 Non-destructive test
10 -  7.3.1 Purpose
10 -  7.3.2 Procedure
10 -  7.3.3 Welds
11 -  8 TEST CERTIFICATES
11 -  8.1 Certificates required
11 -  8.2 Component certificates
11 -  8.3 Assembly test certificate
11 -  9 MARKING
12 -  10 USAGE
17 -  11 INSPECTION AND MAINTENANCE
18 -  APPENDIX A - INSPECTION AND MAINTENANCE
18 -  A1 SCOPE
18 -  A2 LEVEL OF INSPECTION
18 -  A3 FREQUENCY OF INSPECTION
18 -  A4 INSPECTION AFTER AN INCIDENT
19 -  A5 MAINTENANCE
20 -  APPENDIX B - RULING SECTION AND EQUIVALENT SECTION
20 -  B1 SCOPE
20 -  B2 GENERAL
20 -  B3 RULING SECTION
20 -  B4 EQUIVALENT SECTION
23 -  APPENDIX C - DESIGN OF THREADED COMPONENTS
23 -  C1 SCOPE
23 -  C2 GENERAL CONSIDERATIONS
23 -  C3 STATIC DESIGN
24 -  C4 FATIGUE DESIGN
26 -  APPENDIX D - STEEL REQUIREMENTS FOR TYPE A COMPONENTS
26 -  D1 SCOPE
26 -  D2 CHEMICAL COMPOSITION
26 -  D2.1 General
26 -  D2.2 Cast analysis
26 -  D2.3 Residual elements
26 -  D2.4 Product analysis
27 -  D2.5 Austenitic grain size
27 -  D3 IDENTIFICATION
27 -  D4 CONDITIONS OF SUPPLY
27 -  D5 MECHANICAL PROPERTIES AND HEAT TREATMENT REQUIREMENTS
27 -  D5.1 Mechanical properties
27 -  D5.2 Heat treatment
28 -  D6 DETERMINATION OF MECHANICAL PROPERTIES
28 -  D6.1 General
28 -  D6.2 Samples for testing
29 -  D6.3 Tensile test
29 -  D6.4 Impact tests
29 -  D6.5 Pass criterion
29 -  D7 RETESTS
29 -  D8 CERTIFICATES
30 -  APPENDIX E - PERMISSIBLE IMPERFECTIONS FOR MAGNETIC PARTICLE INSPECTION
30 -  E1 SCOPE
30 -  E2 GENERAL
30 -  E3 LIMITS OF PERMISSIBLE IMPERFECTIONS
30 -  E4 DESIGNATION
30 -  E5 RECORD

Abstract

Specifies requirements for couplings, drawbars, and safety chains that connect slope haulage conveyances in underground mines. Covers design, materials, manufacture, testing, and marking.

Scope

This Standard specifies requirements for materials, design, manufacture and use of couplings, drawbars, and safety chains that connect slope haulage conveyances in underground mines.
NOTES:
1 Inspection and maintenance are covered in Appendix A.
2 Information on ruling section and equivalent section is given in Appendix B.
3 The design of threaded components are covered in Clause 5.2 and Appendix C.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Standards Australia
ProductNote	Pending Revision indicates that as a result of the Aged Standards review process, the document needs updating. If no project proposal, meeting the quality criteria, is received within the 12 month timeframe, the document shall be withdrawn.
Pages
ISBN
Committee	ME-018
Supersedes	AS 3751-1990 DR 05065 CP