SANS 2330-2007 Fork-lift trucks - Fork arms - Technical characteristics and testing《铲车 货叉 技术特点及测试》.pdf

1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA

2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any

3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-20729-8 SANS 2330:2007Edition 1ISO 2330:2002Edition 3SOUTH AFRICAN NATIONAL STANDARD Fork-lift trucks Fork arms Technical characteristics

4、and testing This national standard is the identical implementation of ISO 2330:2002 and is adopted with the permission of the International Organization for Standardization. Published by Standards South Africa 1 dr lategan road groenkloof private bag x191 pretoria 0001 tel: 012 428 7911 fax: 012 344

5、 1568 international code +27 12 www.stansa.co.za Standards South Africa SANS 2330:2007 Edition 1 ISO 2330:2002 Edition 3 Table of changes Change No. Date Scope National foreword This South African standard was approved by National Committee StanSA TC 5120.39, Industrial lift trucks, in accordance wi

6、th procedures of Standards South Africa, in compliance with annex 3 of the WTO/TBT agreement. This SANS document was published in November 2007. INTERNATIONALSTANDARDISO2330Third edition2002-05-01Reference numberISO 2330:2002(E) ISO 2002Fork-lift trucks Fork arms Technical characteristics and testin

7、gChariots lvateurs fourches Bras de fourche Caractristiques techniques et essaisSANS 2330:2007This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 2330:2002(E)ii ISO 2002 All rights reservedPDF disclaimerThis PDF file may contain embedded type

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11、f 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 ISOsmember body in the country of the requester.ISO copyright officeCase postale 56 CH-12

12、11 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.chWeb www.iso.chPrinted in SwitzerlandSANS 2330:2007This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 2330:2002(E) ISO 2002 All rights reserved iiiForewordISO (the I

13、nternational Organization for Standardization) is a worldwide federation of national standards bodies (ISOmember bodies). The work of preparing International Standards is normally carried out through ISO technicalcommittees. Each member body interested in a subject for which a technical committee ha

14、s been established hasthe right to be represented on that committee. International organizations, governmental and non-governmental, inliaison with ISO, also take part in the work. ISO collaborates closely with the International ElectrotechnicalCommission (IEC) on all matters of electrotechnical sta

15、ndardization.International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.Draft International Standards adopted by the technical committees are circulated to the member bodies for voting.Publication as an International Standard requires approval by at leas

16、t 75 % of the member bodies casting a vote.Attention is drawn to the possibility that some of the elements of this International Standard may be the subject ofpatent rights. ISO shall not be held responsible for identifying any or all such patent rights.International Standard ISO 2330 was prepared b

17、y Technical Committee ISO/TC 110, Industrial trucks,Subcommittee SC 2, Safety of powered industrial trucks.This third edition cancels and replaces the second edition (ISO 2330:1995), of which it constitutes a minor revision.The Scope has been modified.SANS 2330:2007This s tandard may only be used an

18、d printed by approved subscription and freemailing clients of the SABS .SANS 2330:2007This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .INTERNATIONAL STANDARD ISO 2330:2002(E) ISO 2002 All rights reserved 1Fork-lift trucks Fork arms Technical c

19、haracteristics and testing1 ScopeThis International Standard specifies manufacturing, testing and marking requirements for solid-section fork arms, forquantity production and with all types of mounting. These include, but are not limited to, hook, shaft or pin, bolt-onand roller type fork arms.By ag

20、reement between the fork arm manufacturer and the purchaser, these requirements may also be applied to forkarms not intended for quantity manufacture.2 Normative referencesThe following normative documents contain provisions which, through reference in this text, constitute provisions ofthis Interna

21、tional Standard. For dated references, subsequent amendments to, or revisions of, any of thesepublications do not apply. However, parties to agreements based on this International Standard are encouraged toinvestigate the possibility of applying the most recent editions of the normative documents in

22、dicated below. Forundated references, the latest edition of the normative document referred to applies. Members of ISO and IECmaintain registers of currently valid International Standards.ISO 148:1983, Steel Charpy impact test (V-notch)ISO 683-1:1987, Heat-treatable steels, alloy steels and free-cut

23、ting steels Part 1: Direct-hardening unalloyed andlow-alloyed wrought steel in form of different black productsISO 2328:1993, Fork-lift trucks Hook-on type fork arms and fork arm carriages Mounting dimensionsISO 2331:1974, Fork lift trucks Hook-on type fork arms Vocabulary3 Terms and definitionsFor

24、the purposes of this International Standard, the terms and definitions given in ISO 2331 and the following apply.3.1 prototype fork armfork arm intended for quantity production where any combination of the blade, shank cross-section, materialspecification, hook or fork heel design is new to producti

25、on4 ManufactureThe fork arms shall be manufactured from material of solid cross-section.5Testing5.1 A prototype fork arm shall be subjected to, and meet the requirements of, the yield test in clause 6 and theimpact test in clause 7.SANS 2330:2007This s tandard may only be used and printed by approve

26、d subscription and freemailing clients of the SABS .ISO 2330:2002(E)2 ISO 2002 All rights reservedPrototype fork arms each having a specified capacity not greater than and a load centre not greater thanshall be subjected to, and meet the requirements of, the fatigue test in clause 8.5.2 The tests in

27、 clauses 6 and 7 may, by agreement between the fork arm manufacturer and the purchaser, berepeated periodically for quantity production fork arms.6 Yield test6.1 Test load6.1.1 Fork arms each of specified capacity up to and including The test load shall correspond to three times the specified capaci

28、ty of the fork arm.6.1.2 Fork arms each of specified capacity greater than The test load shall correspond to the specified capacity , expressed in kilograms, of the fork arm multiplied bythe safety factor , where is given as follows:where6.2 ProcedureRestrain the fork arm in a manner identical to th

29、at used on the fork-lift truck. Fit the fork arm with a means ofmeasuring any permanent deformation.Apply the appropriate yield test load twice at the distance from the front face of the fork arm shank (see Figure 1),gradually and without shock; maintain it for each time. For fork arms each of speci

30、fied capacity below and a load centre of , shall be taken as the appropriate rated load centre distance as specifiedin Table 1 of ISO 2328:1993. For fork arms each of specified capacity of and above and a load centre of, shall be specified by the truck manufacturer.aMarking position (on either face)

31、.Figure 1 Marking position and test loads application position4 000 kg4 000 kg 600 mm5 500 kgFTC5 500 kgFTCRRR = 3 0,08(Q 10)Rgreaterorequalslant 2,5Q =2C1 000D30 s 5 500 kg5 500 kg 600 mm D5 500 kg5 500 kg 600 mm DSANS 2330:2007This s tandard may only be used and printed by approved subscription an

32、d freemailing clients of the SABS .ISO 2330:2002(E) ISO 2002 All rights reserved 36.3 RequirementDatum readings shall be taken on the top surface of the fork blade tip after the first test and again after the secondtest. Comparison between these two readings shall indicate no permanent deflection.7

33、Impact test7.1 SamplingSpecimens longitudinal to the grain shall be taken in relation to the fork arm section in accordance with the locationof test pieces in bars and wire rods specified in ISO 683-1. These shall preferably be taken from an area between thetop and bottom hooks, but it is also permi

34、ssible to take specimens from a specially provided extension of the forkshank above the top hook or from a separate piece of semi-finished material of adequate size (i.e. length at leasttwice the width), which has the same cross-section, has been taken from the same material batch and has receivedth

35、e same heat treatment as the fork arm itself.7.2 ProcedureCarry out the impact tests in accordance with ISO 148 using standardized V-notched samples, at a temperature of.7.3 RequirementThe samples shall achieve an impact value of at least 27 J at .8 Fatigue test8.1 Test load magnitude, frequency and

36、 duration8.1.1 The dynamic test load shall be of constant amplitude and have a peak magnitude of 1,25 times the specifiedcapacity . The minimum value for the dynamic test load shall not exceed 0,1 times the specified capacity .8.1.2 The test load frequency shall be maximum. The frequency shall be re

37、duced if the temperature of thefork arm exceeds or if resonance symptoms occur.8.1.3 The duration of the test shall be not less than 106test load cycles.8.2 ProcedureRestrain the fork arm in a manner identical to that used on the fork-lift truck. Apply the dynamic test load at thedistance from the f

38、ront face of the fork arm shank where is as specified in 6.2 (see Figure 1).8.3 RequirementThere shall be no cracks or permanent deformation in the fork arm on completion of the test. The crack detectionprocedure shall be as specified in clause 9.20C20CC C10 Hz50CDSANS 2330:2007This s tandard may on

39、ly be used and printed by approved subscription and freemailing clients of the SABS .ISO 2330:2002(E)4 ISO 2002 All rights reserved9 Surface-crack detectionThe fork arm manufacturer shall thoroughly visually examine every fork arm in quantity production (or following afatigue test) for cracks, and s

40、ubject them to a non-destructive crack detection process with special attention beinggiven to the heel and any welds and heat-affected zones at the top and bottom hooks, including their attachment tothe shank. The fork arm shall be withdrawn if indications of cracking are detected.It is recommended

41、that the non-destructive crack detection process be carried out by the magnetic particleinspection method.10 Marking10.1 At the position indicated in Figure 1 (on either face), each fork arm shall be marked permanently with thefollowing:a) the specified fork arm capacity , in kilograms;b) the specif

42、ied load centre distance , in millimetres;c) the fork arm manufacturers identification;d) the week or month and year of manufacture or agreed serial number.10.2 The truck manufacturers identification and part number may be shown if requested.CD Standards South AfricaSANS 2330:2007This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .