BS ISO 1726-3-2010 Road vehicles Mechanical couplings between tractors and semi-trailers Requirements for semi-trailer contact area to fifth wheel《道路车辆 牵引车和半拖挂车之间机械轴节 半拖挂车备用轮接触面积要求.pdf

1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 1726-3:2010Road vehicles Mechanicalcouplings between tractors andsemi-trailersPart 3: Requirements for semi-trailer contactarea to fifth wheelBS ISO 1726-3:2010 BRITISH ST

2、ANDARDNational forewordThis British Standard is the UK implementation of ISO 1726-3:2010.The UK participation in its preparation was entrusted to TechnicalCommittee AUE/13, Commercial and public service vehicles.A list of organizations represented on this committee can beobtained on request to its s

3、ecretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2010ISBN 978 0 580 58734 4ICS 43.040.70Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was publ

4、ished under the authority of theStandards Policy and Strategy Committee on 30 September 2010.Amendments issued since publicationDate Text affectedBS ISO 1726-3:2010Reference numberISO 1726-3:2010(E)ISO 2010INTERNATIONAL STANDARD ISO1726-3First edition2010-08-15Road vehicles Mechanical couplings betw

5、een tractors and semi-trailers Part 3: Requirements for semi-trailer contact area to fifth wheel Vhicules routiers Liaisons mcaniques entre tracteurs et semi-remorques Partie 3: Exigences pour plateaux friction de semi-remorques BS ISO 1726-3:2010ISO 1726-3:2010(E) PDF disclaimer This PDF file may c

6、ontain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the respons

7、ibility of not infringing Adobes licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation

8、parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHT PROTECTED DOCUMENT ISO 2010 Al

9、l rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country

10、of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2010 All rights reservedBS ISO 1726-3:2010ISO 1726-3:2010(E) ISO 2010 All rights reserved iiiForeword ISO (the

11、 International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committe

12、e has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechni

13、cal standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member b

14、odies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying a

15、ny or all such patent rights. ISO 1726-3 was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 15, Interchangeability of components of commercial vehicles and buses. ISO 1726 consists of the following parts, under the general title Road vehicles Mechanical couplings between t

16、ractors and semi-trailers: Part 1: Interchangeability between tractors and semi-trailers for general cargo Part 2: Interchangeability between low-coupling tractors and high-volume semi-trailers Part 3: Requirements for semi-trailer contact area to fifth wheel BS ISO 1726-3:2010ISO 1726-3:2010(E) iv

17、ISO 2010 All rights reservedIntroduction The dimensional interchangeability of truck and trailer is specified in various standards and regulations. In order to be able to design the details and resistance of the coupling devices, the area for the introduction of forces and torques between fifth whee

18、l and kingpin and trailer also needs to be well defined. Since many fifth wheel coupling plates are designed with certain wear resistance and limited flexibility, stiffness needs to be taken into account when designing the mating area of the trailer, which generally is made of steel. The fact that d

19、amage can occur in this area, including broken coupling plates, emphasizes the necessity of this part of ISO 1726. BS ISO 1726-3:2010INTERNATIONAL STANDARD ISO 1726-3:2010(E) ISO 2010 All rights reserved 1Road vehicles Mechanical couplings between tractors and semi-trailers Part 3: Requirements for

20、semi-trailer contact area to fifth wheel 1 Scope This part of ISO 1726 specifies the test conditions of a static test to be performed on the semi-trailer contact area to the fifth wheel. It ensures the ability of the semi-trailer to couple the greatest possible variety of tractor vehicles equipped w

21、ith a fifth wheel coupling in accordance with ISO 3842. 2 Terms and definitions For the purposes of this document, the following terms and definitions apply. 2.1 contact area to the fifth wheel circular zone surrounding and centred on the kingpin and having a diameter of 965 mm 2.2 test force Fvmaxi

22、mum vertical static load the semi-trailer manufacturer allows to be transmitted to a fifth wheel 3 Requirements During the static test described in 4.2, the elastic deformation, S, shall not exceed 5 mm vertical deflection at any point of the contact area to the fifth wheel during the application of

23、 the test force (see Figure 1). After unloading/discharging, the total unevenness shall not exceed 2 mm at any point within this zone (see Figure 4). 4 Test methods 4.1 General The verification of the minimum requirements specified in this part of ISO 1726 can be performed by static tests (see 4.2)

24、or adequate calculation, if the deformation is only elastic (see 4.3). In the case of a static test, the test forces, Fv/2, shall be positioned at dimensions X (see Figure 1), and may be either applied in one point or uniformly distributed in accordance with the semi-trailer manufacturers recommenda

25、tion. BS ISO 1726-3:2010ISO 1726-3:2010(E) 2 ISO 2010 All rights reserved4.2 Test with static vertical force 4.2.1 Test arrangement The test shall be performed on a whole semi-trailer or on a representative vehicle section. In any case, the fixing arrangements shall be representative and in accordan

26、ce with the kingpin manufacturers fitting instructions. 4.2.2 Preliminary verification Neither protrusions nor sharp edges are allowed in the contact area to the fifth wheel. Holes with sharp edges and holes exceeding a maximum diameter of 50 mm are not allowed. 4.2.3 Test procedure The test semi-tr

27、ailer or the representative vehicle section shall be laden with the maximum admissible static load as declared by the vehicle manufacturer. Examples of load application are given in Figures 1 and 2. The section shall be supported by a ring having an internal diameter of 220 mm and external diameter

28、in the range of 280 mm to 300 mm, as shown in Figure 3. 4.3 Alternative method In case of calculation, a preliminary verification shall be performed in accordance with 4.2.2 in order to ensure that the maximum existing unevenness of the contact area, semi-trailer unladen, is 2 mm at any point of the

29、 contact area to the fifth wheel (see Figure 4). The calculation method or the mathematical model shall be validated in comparison with the actual test procedure. Comparability of the results of the calculation (or the model) with results of conventional test procedures shall be proven. BS ISO 1726-

30、3:2010ISO 1726-3:2010(E) ISO 2010 All rights reserved 3Dimensions in millimetres Key 1 supporting ring for test B semi-trailer width Fvtest force X dimension Smaxmaximum elastic deformation Figure 1 Examples of application of vertical load, front view Dimensions in millimetres Key r1= 1 r2= 7 Figure

31、 2 Example of application of vertical load, side view BS ISO 1726-3:2010ISO 1726-3:2010(E) 4 ISO 2010 All rights reservedDimensions in millimetres Figure 3 Static test supporting ring Dimensions in millimetres Figure 4 Examples for the method to measure the total unevenness (unladen case) BS ISO 172

32、6-3:2010ISO 1726-3:2010(E) ISO 2010 All rights reserved 5Bibliography 1 ISO 3842, Road vehicles Fifth wheels Interchangeability 2 ISO 8716, Road vehicles Fifth wheel kingpins Strength test 3 ISO/IEC 17025, General requirements for the competence of testing and calibration laboratories BS ISO 1726-3:

33、2010ISO 1726-3:2010(E) ICS 43.040.70 Price based on 5 pages ISO 2010 All rights reserved This page deliberately left blankBSI is the independent national body responsible for preparing British Standardsand other standards-related publications, information and services. It presents the UK view on sta

34、ndards in Europe and at the international level. It is incorporated by Royal Charter.British Standards Institution (BSI)raising standards worldwideBSI Group Headquarters389 Chiswick High Road London W4 4AL UKTel +44 (0)20 8996 9001Fax +44 (0)20 8996 Standards are updated by amendment or revision. U

35、sers of British Stan-dards should make sure that they possess the latest amendments or editions.It is the constant aim of BSI to improve the quality of our products and serv-ices. We would be grateful if anyone finding an inaccuracy or ambiguity whileusing this British Standard would inform the Secr

36、etary of the technical com-mittee responsible, the identity of which can be found on the inside frontcover.Tel: +44 (0)20 8996 9001 Fax: +44 (0)20 8996 7001BSI offers Members an individual updating service called PLUS which ensuresthat subscribers automatically receive the latest editions of standar

37、ds.Tel: +44 (0)20 8996 7669 Fax: +44 (0)20 8996 7001Email: Buying standardsYou may buy PDF and hard copy versions of standards directly using acredit card from the BSI Shop on the website addition all orders for BSI, international and foreign standards publicationscan be addressed to BSI Customer S

38、ervices.Tel: +44 (0)20 8996 9001 Fax: +44 (0)20 8996 7001Email: In response to orders for international standards, it is BSI policy tosupply the BSI implementation of those that have been publishedas British Standards, unless otherwise requested.Information on standardsBSI provides a wide range of i

39、nformation on national, Europeanand international standards through its Knowledge Centre.Tel: +44 (0)20 8996 7004 Fax: +44 (0)20 8996 7005Email: Various BSI electronic information services are also available whichgive details on all its products and services. Tel: +44 (0)20 8996 7111 Fax: +44 (0)20

40、8996 7048Email: BSI Subscribing Members are kept up to date with standardsdevelopments and receive substantial discounts on the purchase priceof standards. For details of these and other benefits contact Membership Ad-ministration. Tel: +44 (0)20 8996 7002 Fax: +44 (0)20 8996 7001 Email: Informatio

41、n regarding online access to British Standards via BritishStandards Online can be found at information about BSI is available on the BSI website at www.bsi- subsists in all BSI publications. BSI also holds the copyright,in the UK, of the publications of the international standardization bodies. Ex-

42、cept as permitted under the Copyright, Designs and Patents Act 1988 no ex-tract may be reproduced, stored in a retrieval system or transmitted in anyform or by any means electronic, photocopying, recording or otherwise without prior written permission from BSI. This does not preclude the freeuse, in

43、 the course of implementing the standard of necessary details such assymbols, and size, type or grade designations. If these details are to be usedfor any other purpose than implementation then the prior written permissionof BSI must be obtained. Details and advice can be obtained from the Copy-right & Licensing Manager.Tel: +44 (0)20 8996 7070Email: