BS EN 13827-2003 Steel cord conveyor belts - Determination of the lateral and vertical displacement of steel cords《钢丝绳输送带 钢丝绳横向和垂直位移的测定》.pdf

1、Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 30 March 2004, Uncontrolled Copy, (c) BSIBRITISH STANDARD BS EN 13827:2003 Steel cord conveyor belts Determination of the lateral and vertical displacement of steel cords The European Standard EN 13827:2003 has the status of a

2、 British Standard ICS 53.040.20 Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 30 March 2004, Uncontrolled Copy, (c) BSIBS EN 13827:2003 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 9 January 2004 BSI 9 January 2

3、004 ISBN 0 580 43235 1 National foreword This British Standard is the official English language version of EN 13827:2003. The UK participation in its preparation was entrusted to Technical Committee PRI/67, Conveyor belts, which has the responsibility to: A list of organizations represented on this

4、committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using t

5、he “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from

6、legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK

7、. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 9 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments Licensed Copy

8、: Wang Bin, ISO/Exchange China Standards Information Centre, 30 March 2004, Uncontrolled Copy, (c) BSIEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN13827 December2003 ICS53.040.20 Englishversion SteelcordconveyorbeltsDeterminationofthelateraland verticaldisplacementofsteelcords Courroiestransport

9、eusescarcassemtallique Dterminationdudplacementlatraletverticaldescbles dacier StahlseilFrdergurtePrfungderhorizontalenund vertikalenLagederStahlseile ThisEuropeanStandardwasapprovedbyCENon3November2003. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgiv

10、ingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninan

11、yotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,

12、Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandUn ited Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved w

13、orldwideforCENnationalMembers. Ref.No.EN13827:2003:E Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 30 March 2004, Uncontrolled Copy, (c) BSIEN13827:2003(E) 2 Contents Page Foreword. 3 1 Scope . 4 2 Normativereferences . 4 3 MethodA.Determinationofcordpitchandsupportedbelt

14、width 4 4 MethodB.Determinationoftheverticaldisplacementofcordsrelativetoameanlevel 6 5 Testreport . 8 Bibliography . 9 Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 30 March 2004, Uncontrolled Copy, (c) BSIEN13827:2003(E) 3 Foreword Thisdocument(EN13827:2003)hasbeenprepa

15、redbyTechnicalCommitteeCEN/TC188“Conveyorbelts”, thesecretariatofwhichisheldbyBSI. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidentical textorbyendorsement,atthelatestbyJune2004,andconflictingnationalstandardsshallbewithdrawnat thelatestbyJune2004. Accordingt

16、otheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark, Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands, Norway,Portugal,Slovakia,Spain,Sweden,S

17、witzerlandandtheUnitedKingdom. Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 30 March 2004, Uncontrolled Copy, (c) BSIEN13827:2003(E) 4 1Scope ThisEuropeanStandardspecifiesmethodsforthedeterminationofthemeanlateraldisplacementbetween cords,andforthedeterminationoftheverti

18、caldisplacementofcordsrelativetoameanlevelofsteelcords withinaconveyorbeltasdescribedinprENISO152361. 2 Normativereferences Notapplicable. 3 MethodA.Determinationofcordpitchandsupportedbeltwidth 3.1Apparatus NOTE Ifthereareothermeasuringtoolswiththesameorbetterprecisionthesecanalsobeused. 3.1.1 Meas

19、uringtape, graduatedindivisionsof1,0mm. 3.1.2 Handheldopticalmagnifier ,incorporatingascalegraduatedindivisionsof0,1mmandhavinga magnificationofnotlessthanx8. 3.1.3 Dialgaugemicrometer ,graduatedindivisionsof0,1mm. 3.1.4 Flathorizontalsurface tosupportthefullwidthoftheconveyorbelt. 3.2 Testpiece The

20、testpieceshallbeoffullbeltwidthandnotlessthan50mmlong.Thecutedgesshallbesmooth,freeof contaminationandshallexposethecordsclearly. Ifthecutedgesarenotsmoothenoughthetestpiececanbepreparedinadifferentwaysothattheposition ofthecordscanbemeasuredwithaprecisiongiveninthisEuropeanStandard. 3.3Procedure 3.

21、3.1 Determinationofmeancordpitch (t m ) Usingthemeasuringtape(3.1.1),measurethedistancetothenearest1,0mmbetweentheouteredgesofthe firstandlastcordacrossthewidthofthetestpiece(seeFigure1),andrecordthisvalueas( b t +d ). Alternatively,usethemeasuringtapetomeasurethebeltwidthtothenearest1,0mmandmeasure

22、the thicknessoftheedgerubber,b k ,atbothedgestothenearest0,5mm;( b t +d)isthebeltwidthlessedge rubberthickness. Usingthemicrometer(3.1.3),orthehandheldopticalmagnifier(3.1.2),measurethediameterofeitherthe firstorthelastcordinthetestpiecetothenearest0,1mmandrecordthevalueas( d). Countthetotalnumberof

23、cordsacrossthewidthofthetestpieceandrecordthenumberas( n). Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 30 March 2004, Uncontrolled Copy, (c) BSIEN13827:2003(E) 5 Figure1Illustrationofmeasurementstakenformeasurementof t m Calculatethemeancordpitch t m asfollows: t m (b t

24、 d) d (n 1) = +- - Expresstheresulttothenearest0,1mm. 3.3.2 Measurementofsupportedbeltwidth( b t )(seeFigure1) Calculatethesupportedbeltwidth b t asfollows: b t =(b t +d)d Expresstheresultstothenearest0,1mm. Calculatethepercentageofthedeviationoftheactualsupportedbeltwidthtothecalculatedsupportedbel

25、t widthasfollows: % 100 1) (n 100 - - = D t m b t b t 3.3.3 Measurementofthecordpitcheswithinacontrolsection(seeFigure2) Selectany21consecutivelyadjacentcordswithinthetestpiece. Usingthemicrometer(3.1.3)orthehandheldopticalmagnifier(3.1.2),measurethepitchesbetweenthe21 cordsandrecordthemas t 1 ,t 2

26、,t 20. NOTE Iftheserequirementscannotbemetwithinthiscontrolsection,thecontrolsectionmaybeincreasedin multiplesof20pitchesuntilallpitchesaremeasured. Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 30 March 2004, Uncontrolled Copy, (c) BSIEN13827:2003(E) 6 Figure2Illustratio

27、nofmeasurementstakenofcordpitchesincontrolsection 4 MethodB.Determinationoftheverticaldisplacementofcordsrelativetoamean level. NOTE Thistestcanonlybeconductedonaconveyorbeltthathasauniformcoveronatleastoneside.Thisis becausetheoutersurfaceoftheuniformcoverisusedasthebasedatumformeasurementsofcordhe

28、ight.Variationsin thebasedatumwilladverselyeffecttheprecisionofthetest. 4.1Apparatus NOTE Ifthereareothermeasuringtoolswiththesameorbetterprecisionthesecanalsobeused. 4.1.1 Adialgaugemicrometer asdescribedin3.1.3. 4.1.2 Ahandheldopticalmagnifier asdescribedin3.1.2. 4.1.3 Aflatsurface asdescribedin3.

29、1.4. 4.2 Testpiece Usethetestpiecedescribedin3.2. 4.3Procedure 4.3.1 Measurementofmeancordheight( h m ) Atevenlyspacedintervalsacrossthewidthofthetestpieceselectanumberofcordsequalto10%ofthe totalnumberofcordsinthebelt. Figure3Measurementofmeancordheight(h m ) Placethetestpiecewiththeuniformcoverdow

30、n,onthehorizontalsurface(3.1.4).Ifnecessaryensurethat thetestpieceremainsflatbyusingclamps. Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 30 March 2004, Uncontrolled Copy, (c) BSIEN13827:2003(E) 7 Usingthemicrometer(4.1.1)ortheopticalmagnifier(4.1.2)measuretheheightofeach

31、oftheselectedcords relativetothebottomsurfaceofthebelt.Themeasurementbeingtakentotheupperedgeofthecord(see Figure3).Recordtheindividualmeasurements h 1 ,h 2 ,h 3 h n . Calculatethemeanheight h m asfollows: h m h 1 h 2 h 3 h n n = + where nisthenumberofcordsselected. 4.3.2 Measurementofdisplacedcords

32、aboveandbelowthemeanvalue( h) Identifyanycordswhichappeartobehigherorlowerthanthemeanlevel h m . Measuretothenearest0,5mmtheheight hoftheupperedgeofthecordoverthebottomsurfaceand calculatethedifferenceD h,inthelevelofeachdisplacedcordrelativetothemeanheight, h m ,ignoring whetherthedeviationispositi

33、veornegative(seeFigure4). Arrangetheresultsintothreelevelsofseverity D h 1 , D h 2 and D h 3 andtabulatetheresultsintheformshownin Table1.Calculatethepercentagebasedonthetotalnumberofcordsacrossthetestpiece. Table1Evaluationofheightdifferences D h 1 D h 2 D h 3 Totalnumberof cordsinthetest piece Noo

34、fcords h h m 1,0mm Noofcords h h m 1,0mmand h m 1,5mm Noofcords h h m 1,5mm Quantity Percentage Quantity Percentage Quantity Percentage Figure4Illustrationofmeasurementofcordheight Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 30 March 2004, Uncontrolled Copy, (c) BSIEN13

35、827:2003(E) 8 5 Testreport Thetestreportshallincludethefollowingparticulars: a) referencetothisEuropeanStandard; b) identificationofthesteelcordbelttested; c) meancordpitch( t m ); d) deviationofsupportedbeltwidth; e) deviationofindividualpitches; f)percentage D h 1 , D h 2 , D h 3 values; g) dateof

36、thetest. Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 30 March 2004, Uncontrolled Copy, (c) BSIEN13827:2003(E) 9 Bibliography prENISO152361, SteelcordconveyorbeltsPart1:Design,dimensionsandmechanicalrequirements forconveyorbeltsforgeneraluse(ISO/DIS152361:1996) Licensed

37、Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 30 March 2004, Uncontrolled Copy, (c) BSIBS EN 13827:2003 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK v

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