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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
11 1 Scope
2 Normative references
13 3 Terms and definitions
15 4 Requirements for all types of draw gear and screw coupling
4.1 Classification and designation
16 4.2 Interface dimension for freight wagons
17 4.3 Lifetime
5 Draw gear
5.1 Draw gear components
18 5.2 Draw hook and drawbar – Requirements
19 6 Screw coupling
6.1 General requirements
21 6.2 Screw coupling – Requirements
22 7 Elastic device
7.1 Characteristics of the elastic device
7.2 Elastic device – Requirements
23 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)
25 A.2.3 Non-destructive tests
A.2.4 Determination of residual strength
26 A.2.5 Macrographic and Micrographic tests
A.3 Criteria of acceptance
A.4 Test report
27 Annex B (normative)Draw hook — dimensions
28 Annex C (normative)Draw gear — Interface dimension
30 Annex D (normative)Screw coupling components – dimensions
32 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
33 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
34 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
35 E.5.4 Heat treatment
E.5.5 Rectification of defects
E.6 Acceptance
E.6.1 General
E.6.1.1 General remarks
36 E.6.1.2 Organization of checks and tests
37 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
40 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
41 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
42 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
43 F.2.3 Additional requirements for screw coupling
F.3 Geometrical characteristics
F.3.1 General
44 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
45 F.4.3 Resilience
F.4.4 Requirements for screw coupling
F.4.4.1 Test under half minimum breaking load
47 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
48 F.6.2.2 Machining
49 F.6.2.3 Heat treatment
F.6.2.4 Assembly of the component parts
F.6.2.5 Retouching
50 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
51 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
52 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
56 F.8.5 Carrying out of the checks and tests
F.8.5.1 Materials
F.8.5.2 Component parts
57 F.8.5.3 Screw coupling
58 F.9 Completion of inspections
F.10 Delivery
F.10.1 Protection against oxidation
F.10.2 Packing
59 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
61 G.1.4 Static test
G.1.4.1 Test principle
G.1.4.2 Test procedure
G.1.4.3 Measurements
62 G.1.5 Endurance test
64 G.1.6 Bonding
G.1.7 Inspection and tests
66 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
67 G.2.2.3 Numbers of tests
G.2.3 Endurance test
68 Annex H (normative)Marking
H.1 Marking of the draw hook
H.2 Marking of the screw coupling
69 H.3 Draw gear
H.4 Drawbar
70 H.5 Summary of markings
71 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
72 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
73 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
76 I.6 Example
77 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