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BS EN 15566:2022

BS EN 15566:2022

$215.11

Railway applications. Railway Rolling stock. Draw gear and screw coupling

Published By Publication Date Number of Pages
BSI 2022 84
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This document specifies the requirements for the draw gear and screw coupling for the end of rolling stock that is bound to couple with other rolling stock (freight wagons, locomotives, passenger vehicles, etc.). This document covers the functionality, construction, interfaces and testing including pass/fail criteria for draw gear and screw coupling. The document describes three categories of classification of draw gear and screw coupling, (1 MN, 1,2 MN and 1,5 MN). Coupling systems between permanently coupled vehicle units are not in the scope of this document.

PDF Catalog

PDF Pages PDF Title
2 undefined
13 1 Scope
2 Normative references
15 3 Terms and definitions
17 4 Requirements for all types of draw gear and screw coupling
4.1 Classification and designation
18 4.2 Interface dimension for freight wagons
19 4.3 Lifetime
5 Draw gear
5.1 Draw gear components
20 5.2 Draw hook and drawbar – Requirements
21 6 Screw coupling
6.1 General requirements
23 6.2 Screw coupling – Requirements
24 7 Elastic device
7.1 Characteristics of the elastic device
7.2 Elastic device – Requirements
25 Annex A (normative)Dynamic test (fatigue test) procedure
A.1 Background
A.2 Performance of the test
A.2.1 Conditioning
A.2.2 Dynamic test (fatigue test)
27 A.2.3 Non-destructive tests
A.2.4 Determination of residual strength
28 A.2.5 Macrographic and Micrographic tests
A.3 Criteria of acceptance
A.4 Test report
29 Annex B (normative)Draw hook — dimensions
30 Annex C (normative)Draw gear — Interface dimension
32 Annex D (normative)Screw coupling components – dimensions
34 Annex E (normative)Draw hook and drawbar – Requirements
E.1 Physical characteristics
E.1.1 Appearance
E.1.2 Integrity
E.1.3 Material examination
35 E.2 Geometrical characteristics
E.3 Mechanical characteristics
E.3.1 General
E.3.2 Tensile test on test piece
E.3.3 Resilience
E.3.4 Hardness
36 E.3.5 Tensile test on draw hook and drawbar
E.3.5.1 Test under half minimum breaking load
E.3.5.2 Test under minimum breaking load
E.4 Marking
E.5 Manufacture
E.5.1 General on drawbars
E.5.2 General on draw hooks
E.5.3 Machining
37 E.5.4 Heat treatment
E.5.5 Rectification of defects
E.6 Acceptance
E.6.1 General
E.6.1.1 General remarks
38 E.6.1.2 Organization of checks and tests
39 E.6.2 Inspection of the draw hooks
E.6.2.1 Submission for acceptance
E.6.2.2 Grouping into batches
E.6.2.3 Advice of inspection
E.6.2.4 Sampling and preparation of the samples and test pieces
42 E.6.3 Inspection of drawbars
E.6.3.1 Nature and extend of checks and tests
E.6.3.2 Sampling and preparation of samples and test pieces
43 E.6.3.3 Organization of checks and tests
E.6.3.4 Tensile test on drawbars
E.6.4 Conclusion of the inspections
E.7 Delivery
E.7.1 Protection against corrosion
E.7.2 Packaging
44 Annex F (normative)Screw coupling and components parts — Requirements
F.1 Materials
F.2 Physical characteristics
F.2.1 Appearance
F.2.2 Soundness
F.2.2.1 General
F.2.2.2 Material examination
45 F.2.3 Additional requirements for screw coupling
F.3 Geometrical characteristics
F.3.1 General
46 F.3.2 Dimensions limited either by two unmachined or rough machined surfaces or by one unmachined or rough machined surface
F.3.3 Dimensions limited by two machined surfaces
F.4 Mechanical characteristics
F.4.1 Heat treatment
F.4.2 Hardness
47 F.4.3 Resilience
F.4.4 Requirements for screw coupling
F.4.4.1 Test under half minimum breaking load
49 F.4.4.2 Test under minimum breaking load
F.4.4.3 Test under maximum breaking load
F.4.5 Requirement for handle and trunnion
F.5 Marking
F.6 Manufacture
F.6.1 Preparation of the materials
F.6.2 Manufacture of the component parts
F.6.2.1 Forging and stamping
50 F.6.2.2 Machining
51 F.6.2.3 Heat treatment
F.6.2.4 Assembly of the component parts
F.6.2.5 Retouching
52 F.6.2.6 Welding
F.7 Acceptance
F.7.1 General
F.7.2 Inspection of the manufacture
F.8 Inspection of the materials, component parts and screw couplings
F.8.1 Materials submission for acceptance
53 F.8.2 Grouping into batches
F.8.2.1 General
F.8.2.2 Materials
F.8.3 Nature and proportion of the tests
54 F.8.4 Sampling and preparation of the samples and test pieces
F.8.4.1 Sampling
F.8.4.2 Preparation of the samples and test pieces
58 F.8.5 Carrying out of the checks and tests
F.8.5.1 Materials
F.8.5.2 Component parts
59 F.8.5.3 Screw coupling
60 F.9 Completion of inspections
F.10 Delivery
F.10.1 Protection against oxidation
F.10.2 Packing
61 Annex G (normative)Elastic device — Requirements
G.1 Rubber elastomer or other elastomer elastic device
G.1.1 General
G.1.2 Metal inserts requirements
G.1.3 Elastomer requirements
63 G.1.4 Static test
G.1.4.1 Test principle
G.1.4.2 Test procedure
G.1.4.3 Measurements
64 G.1.5 Endurance test
66 G.1.6 Bonding
G.1.7 Inspection and tests
68 G.1.8 Markings
G.2 Friction spring/ Ring spring
G.2.1 Manufacturer’s marks
G.2.2 Flexibility test
G.2.2.1 Requirements for flexibility test
G.2.2.2 Carrying out of the flexibility test
69 G.2.2.3 Numbers of tests
G.2.3 Endurance test
70 Annex H (normative)Marking
H.1 Marking of the draw hook
H.2 Marking of the screw coupling
71 H.3 Draw gear
H.4 Drawbar
72 H.5 Summary of markings
73 Annex I (informative)Microscopic examination of steel materials using standard diagrams to assess the content of non-metallic inclusions
I.1 General
I.1.1 Degree of purity
I.1.2 Standard diagram plate No. 1
I.2 Preparation of specimens
I.3 Structure and use of standard diagram plate No. 1
I.3.1 Use of diagram plate No. 1
74 I.3.2 Rating a single inclusion
I.3.3 Rating of very small inclusions
I.4 Test procedure
I.4.1 Magnification
I.4.2 Selection of inclusions
I.4.2.1 General
I.4.2.2 Rating of inclusions extending the diameter of observation
75 I.4.2.3 Rating of inclusions of different types and shapes
I.4.2.4 Rating of continuous and isolated inclusions
I.4.2.5 Area to be examined
I.5 Evaluation
I.5.1 General
I.5.1.1 Designation of inclusions
I.5.1.2 Recording of inclusions
I.5.2 Method of evaluation
I.5.3 Calculation procedure for evaluation using method K
78 I.6 Example
79 Annex ZA (informative)Relationship between this European Standard and the Essential Requirements of EU Directive (EU) 2016/797 aimed to be covered

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BS EN 15566:2022
$215.11