1、January 2017 English price group 12No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 45.040!%_D“2605933www.din.deDIN
2、EN 16241Railway applications Slack adjuster;English version EN 16241:2014+A1:2016,English translation of DIN EN 16241:2017-01Bahnanwendungen Gestngesteller;Englische Fassung EN 16241:2014+A1:2016,Englische bersetzung von DIN EN 16241:2017-01Applications ferroviaires Rgleur de timonerie;Version angla
3、ise EN 16241:2014+A1:2016,Traduction anglaise de DIN EN 16241:2017-01SupersedesDIN EN 16241:201406www.beuth.deDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.Document comprises 22 pages 01.17 2 A comma is used as the decimal marker.
4、 National foreword This document (EN 16241:2014+A1:2016) has been prepared by Technical Committee CEN/TC 256 “Railway applications” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was DIN-Normenausschuss Fahrweg und Schienen-fahrzeuge (DIN Standards Committee Rai
5、lway), Working Committee NA 087-00-03 AA Bremse. This standard is based on the English reference version. Amendments This standard differs from DIN EN 16241:2014-06 as follows: a) in Clause 6, 6.3.3.1, 6.3.3.2 and 6.3.4.2 have been amended; b) Annex ZA has been revised. Previous editions DIN EN 1624
6、1: 2014-06 DIN EN 16241:2017-01EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16241:2014+A1 November 2016 ICS 45.040 Supersedes EN 16241:2014English Version Railway applications - Slack adjuster Applications ferroviaires - Rgleur de timonerie Bahnanwendungen - Gestngesteller This European Stan
7、dard was approved by CEN on 16 November 2013 and includes Amendment 1 approved by CEN on 8 August 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
8、 Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by tr
9、anslation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Fin
10、land, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATI
11、ON COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16241:2014+A1:2016 EEN 16241:2014+A1:2016 (E) 2
12、Contents Page European foreword . 4 1 Scope 5 2 Normative references 5 3 Terms and definitions . 5 4 Design and manufacture . 6 4.1 Requirements . 6 4.1.1 General 6 4.1.2 Maintenance of block to tread clearance 6 4.1.3 Take up . 6 4.1.4 Pay out . 6 4.1.5 Shock and Vibration . 7 4.1.6 Space envelope
13、. 7 4.1.7 Maximum load absorption . 9 4.2 Service life 9 4.3 Ambient temperature . 10 4.4 Other environmental conditions 10 4.4.1 General . 10 4.4.2 Humidity 10 4.4.3 Rain . 10 4.4.4 Snow, ice and hail . 11 4.4.5 Solar radiation 11 4.4.6 Resistance to pollution . 11 4.5 External appearance . 11 5 Ma
14、terials 11 6 Type test methods 12 6.1 Sampling for type test . 12 6.2 Test requirements . 12 6.3 Test procedure 12 6.3.1 Principle 12 6.3.2 Check of physical and geometrical characteristics 12 6.3.3 Operation 12 6.3.4 Operation at extreme temperatures . 14 6.3.5 Maximum load absorption 14 6.3.6 Life
15、 test . 14 6.4 Approval validity 15 6.5 Test Report . 15 7 Routine test 15 8 In-Service assessment 15 9 Designation. 16 10 Identification and marking . 16 Annex A (informative) In-service trial . 17 DIN EN 16241:2017-01 EN 16241:2014+A1:2016 (E) 3 A.1 General . 17 A.2 Test set-up and sampling . 17 A
16、.3 Procedure 17 A.4 Pass/fail criteria . 17 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2008/57/EC 18 Bibliography . 20 DIN EN 16241:2017-01 EN 16241:2014+A1:2016 (E) 4 European foreword This document (EN 16241:2014+A1:2016) has b
17、een prepared by Technical Committee CEN/TC 256 “Railway applications”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2017, and conflicting national s
18、tandards shall be withdrawn at the latest by May 2017. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document includes Amendmen
19、t 1 approved by CEN on 2016-08-08. This document supersedes EN 16241:2014. The start and finish of text introduced or altered by amendment is indicated in the text by tags !“. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Associat
20、ion, and supports essential requirements of EU Directive 2008/57/EC. For relationship with EU Directive 2008/57/EC, see informative Annex ZA which is an integral part of this document. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries
21、are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
22、Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 16241:2017-01 EN 16241:2014+A1:2016 (E) 5 1 Scope This European Standard establishes general principles for designing, manufacturing and type testing slack adjusters. NOTE 1 These requirements ca
23、nnot be written in sufficient detail to ensure good workmanship or proper construction. Each manufacturer is therefore responsible for taking every necessary step to make sure that the quality of workmanship and construction is such as to ensure accordance with good engineering practice. It is appli
24、cable to double acting slack adjusters designed to control the block (shoe) to tread (wheel) clearance of tread braked vehicles with conventional brake cylinders and rigging, without taking the track-gauge into consideration. NOTE 2 The term used for this device by UIC is “Brake rigging adjuster”. 2
25、 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendm
26、ents) applies. EN 60721-3-5:1997, Classification of environmental conditions - Part 3: Classification of groups of environmental parameters and their severities - Section 5: Ground vehicle installations EN 61373, Railway applications Rolling stock equipment Shock and vibration tests (IEC 61373) 3 Te
27、rms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 tread surface of a monobloc wheel or of a separate tread on which the brake block rubs 3.2 slack adjuster device to compensate for wear of brake shoes, wheel treads, and brake rigging pivots to main
28、tain a nominal block to tread clearance Note 1 to entry: These slack adjusters are fitted separately in the brake rigging as independent devices. These slack adjusters are sometimes referred to as regulators. 3.3 double acting works in two directions to take up excessive clearance between the brake
29、block and tread or pay out to allow the nominal clearance to be restored between the brake block and tread where this is reduced 3.4 take up reduction in the length of the brake rigging caused by the operation of the slack adjuster DIN EN 16241:2017-01 EN 16241:2014+A1:2016 (E) 6 3.5 pay out increas
30、e in length of the brake rigging caused by the operation of the slack adjuster 4 Design and manufacture 4.1 Requirements 4.1.1 General Slack adjusters shall be able to operate in the brake rigging of railway rolling stock. Slack adjusters shall be able to be mounted in both exposed and protected loc
31、ations and function correctly in normal conditions of operation. The impact of direct pollution and shocks linked to loading and unloading of vehicles are excluded from this European Standard. 4.1.2 Maintenance of block to tread clearance Slack adjusters shall operate to maintain a set block to trea
32、d clearance within a tolerance of 2 mm. The block to tread clearance is a function of the setting of the slack adjuster control dimension “A” which is chosen to provide the required block to wheel clearance when fitted to a vehicle. Examples of installations are shown in Figure 1. This is tested in
33、accordance with 6.3.3.1. Figure 1 4.1.3 Take up Slack adjusters shall take up excessive block to tread clearance in a minimum number of cycles of the brake (application and release), but this shall not be more than 3 cycles. This requirement is tested in accordance with 6.3.3.2. 4.1.4 Pay out Slack
34、adjusters shall pay out, if the block to tread clearance is insufficient, to restore the correct block to tread clearance. This situation may come about due to a change in the vehicles laden state. This pay out shall not increase the distance between brake block and wheel when releasing after the fi
35、rst brake application when the insufficient block to tread clearance is detected, but only after the release following the second brake application if the distance remains insufficient. This is to prevent the clearance being increased due to the presence of ice, snow or other foreign bodies. This re
36、quirement is tested in accordance with 6.3.3.3. DIN EN 16241:2017-01 EN 16241:2014+A1:2016 (E) 7 4.1.5 Shock and Vibration 4.1.5.1 Shock Slack adjusters shall not take up or pay out when subjected to longitudinal shocks in accordance with EN 61373 for body mounted equipment with one level of suspens
37、ion, category 2. This requirement is tested in accordance with 6.3.3.4.1. 4.1.5.2 Vibration Slack adjusters shall not take up or pay out when subjected to vibrations in accordance with EN 61373 category 2, for body mounted equipment with one level of suspension. This requirement is tested in accorda
38、nce with 6.3.3.4.2. 4.1.5.3 Compliance of existing designs Should existing designs of slack adjuster be subject to the requirements of this standard, compliance with the shock and vibration requirements of this clause can be demonstrated by the documentary evidence of 10 years satisfactory service e
39、xperience with a minimum of 3 operators, each with a minimum of 500 slack adjusters in service. 4.1.6 Space envelope Slack adjusters which act to reduce or extend the length of an active member (rod that takes the braking loads) in the brake rigging shall fit within the space envelope of Figure 2 wh
40、ere their load (force) capability is up to 75 kN and Figure 3 where it is greater than 75 kN and up to 130 kN. DIN EN 16241:2017-01 EN 16241:2014+A1:2016 (E) 8 Dimensions in millimetres Key * Length adjusted to the vehicle C Measurement mark G 36 mm pin diameter Pins shall be a case hardened steel w
41、here Rm is greater or equal to 370 N/mm2NOTE Rm is the tensile strength of the steel. K 83 mm Slack Adjuster type 1 2 L Length 2 325 mm 1 875 mm M Take up 580 mm 440 mm 1 Alternative attachment arrangements for the brake rigging (XX) Figures in brackets ( ) are nominal values. Figure 2 Space envelop
42、e loads (forces) up to 75 kN DIN EN 16241:2017-01 EN 16241:2014+A1:2016 (E) 9 Dimensions in millimetres Key * Length adjusted to the vehicle C Measurement mark G 40 mm pin diameter Pins shall be a case hardened steel where Rm is greater or equal to 370 N/mm2NOTE Rm is the tensile strength of the ste
43、el. K 83 mm Slack Adjuster type 1 2 3 L Length 2 390 mm 1 940 mm 1 640 mm M Take up 580 mm 440 mm 280 mm 1 Alternative attachment arrangements for the brake rigging (XX) Figures in brackets ( ) are nominal values. Figure 3 Space envelope loads (forces) from 75 kN to 130 kN 4.1.7 Maximum load absorpt
44、ion The slack adjuster shall not absorb more than 2 kN of the brake application force. This requirement is tested in accordance with 6.3.5. 4.2 Service life A life test shall be carried out on the slack adjuster to demonstrate it is fit for service on railway vehicles and to verify the maintenance r
45、equirements for the operational design life so these can be taken into DIN EN 16241:2017-01 EN 16241:2014+A1:2016 (E) 10 account for the actual service life. This life test shall be carried out at loads between 35 kN and the maximum rated load, spanning the full range of adjustment. This requirement
46、 is tested in accordance with 6.3.6. 4.3 Ambient temperature Slack adjusters shall be able to operate within the temperature range from 40 C to +70 C external air temperature. This requirement is tested in accordance with 6.3.4. 4.4 Other environmental conditions 4.4.1 General The following environm
47、ental conditions shall be considered in the design of the slack adjuster. It shall be demonstrated that these environmental conditions have been taken into account in the design of the slack adjuster. It is sufficient for the supplier to make a declaration of conformity stating how the environmental
48、 conditions in the following clauses have been taken into account. If not specifically required to be tested as part of the type testing requirements in Clause 6 of this document, suitable tests and/or design assessments considering the effect of the following environmental conditions on the slack a
49、djuster, shall be used in the development/design proving of the device, prior to type testing. 4.4.2 Humidity The following external humidity levels shall be considered: yearly average: 75 % relative humidity; on 30 d in the year continuously: between 75 % and 95 % relative humidity; on the other days occasionally: between 95 % and 100 % relative humidity; maximum absolute humidity: 30 g/m3occurring in tunnels. An operationally caused infrequent and slight moisture c
