1、April 2013 Translation by DIN-Sprachendienst.English price group 8No 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 5
2、3.040.20!$T“1994961www.din.deDDIN EN ISO 1120Conveyor belts Determination of strength of mechanical fastenings Static test method (ISO 1120:2012);English version EN ISO 1120:2012,English translation of DIN EN ISO 1120:2013-04Frdergurte Bestimmung der Festigkeit mechanischer Verbindungen Statisches P
3、rfverfahren (ISO 1120:2012);Englische Fassung EN ISO 1120:2012,Englische bersetzung von DIN EN ISO 1120:2013-04Courroies transporteuses Dtermination de la rsistance des assemblages agrafs Mthode dessai statique (ISO 1120:2012);Version anglaise EN ISO 1120:2012,Traduction anglaise de DIN EN ISO 1120:
4、2013-04SupersedesDIN EN ISO 1120:2002-06www.beuth.deDocument comprises 12 pagesIn case of doubt, the German-language original shall be considered authoritative.03.13 DIN EN ISO 1120:2013-04 2 A comma is used as the decimal marker. National foreword This document (EN ISO 1120:2012) has been prepared
5、by Technical Committee ISO/TC 41 “Pulleys and belts (including veebelts)” (Secretariat: SAC, China), SC 3 “Conveyor belts” (Secretariat: SAC, China and JISC, Japan) and has been taken over as EN ISO 1120:2012 by Technical Committee CEN/TC 188 “Conveyor belts” (Secretariat: SNV, Switzerland). The res
6、ponsible German body involved in its preparation was the Normenausschuss Kautschuktechnik (Rubber Technology Standards Committee), Working Committee NA 045-02-05 AA Frdergurte. The DIN Standard corresponding to the International Standard referred to in this document is as follows: ISO 283 DIN EN ISO
7、 283 Amendments This standard differs from DIN EN ISO 1120:2002-06 as follows: a) the standard has been editorially revised. Previous editions DIN 22110-1: 1973-01, 1991-05 DIN EN ISO 1120: 2002-06 National Annex NA (informative) Bibliography DIN EN ISO 283, Textile conveyor belts Full thickness ten
8、sile strength, elongation at break and elongation at the reference load Test method EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 1120 October 2012 ICS 53.040.20 Supersedes EN ISO 1120:2002 English Version Conveyor belts Determination of strength of mechanical fastenings Static test metho
9、d (ISO 1120:2012) Courroies transporteuses Dtermination de la rsistance des assemblages agrafs Mthode dessai statique (ISO 1120:2012) Frdergurte Bestimmung der Festigkeit mechanischer Verbindungen Statisches Prfverfahren (ISO 1120:2012) This European Standard was approved by CEN on 30 September 2012
10、. 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. Up-to-date lists and bibliographical references concerning such national standards may be obtained on
11、 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 translation under the responsibility of a CEN member into its own language and notified to the CEN-CENEL
12、EC 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, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy
13、, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17,
14、 B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 1120:2012: E Contents PageForeword .31 Scope 42 Normative references .43 Terms and definitions .44 Principle . 25 Apparatus 56 Test piece .56.1 Selection of
15、test piece 56.2 Shape, dimensions and preparation 66.3 Number of test pieces 66.4 Conditioning and test conditions67 Procedure 67.1 For mechanical belt joints with a connecting rod 67.2 For mechanical belt joints without a connecting rod .78 Expression of results .79 Test report .8Bibliography .102D
16、IN EN ISO 1120:2013-04EN ISO 1120:2012 (E) Foreword This document (EN ISO 1120:2012) has been prepared by Technical Committee ISO/TC 41 “Pulleys and belts (including veebelts)“ in collaboration with Technical Committee CEN/TC 188 “Conveyor belts” the secretariat of which is held by SNV. This Europea
17、n Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2013, and conflicting national standards shall be withdrawn at the latest by April 2013. Attention is drawn to the possibility that some of the elements o
18、f 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 supersedes EN ISO 1120:2002. According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following cou
19、ntries 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, P
20、oland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 1120:2012 has been approved by CEN as a EN ISO 1120:2012 without any modification. 3DIN EN ISO 1120:2013-04 EN ISO 1120:2012 (E) 1 ScopeThis International Stand
21、ard specifies a static test method for measuring the strength of a conveyor belt mechanical fastening; the mechanical joints can be either of the type employing a connecting rod or of a type which does not employ a connecting rod.This International Standard does not cover vulcanized joints.This Inte
22、rnational Standard is neither applicable to nor valid for light conveyor belts, as described in ISO 21183-1.NOTE The purpose of the test specified in this International Standard is to eliminate mechanical fastenings of insufficient static strength. It is intended to establish a dynamic test at a lat
23、er date.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 283, Textile con
24、veyor belts Full thickness tensile strength, elongation at break and elongation at the reference load Test method3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.3.1width of fasteningnumber of units multiplied by the pitch, or number of hooks multip
25、lied by the pitch3.2pitchdistance between a point on a unit or hook and the corresponding point on the next unit or hook, according to the type of fasteningSee Figure 1.4DIN EN ISO 1120:2013-04EN ISO 1120:2012 (E) 1122a) Width of fastening equal to the pitch times eightb) Width of fastening equal to
26、 the pitch times threeKey1 pitch2 width of fasteningFigure 1 Pitch and width of fastenings of mechanical fastenings4 PrincipleApplication of an increasing tensile force to a test piece until the joint made by the mechanical fastening breaks and comes apart.5 Apparatus5.1 Metallic adapter plate for j
27、oints which employ a connecting rod that can be disconnected.5.2 Dynamometer, as described in ISO 283.6 Test piece6.1 Selection of test pieceTest pieces shall be taken parallel to the axis of the belt and at least 50 mm from its edge.5DIN EN ISO 1120:2013-04 EN ISO 1120:2012 (E) 6.2 Shape, dimension
28、s and preparation6.2.1 Mechanical belt joints with connecting rodThe test pieces shall consist of a full thickness piece of belting cut in the longitudinal direction, with a minimum length of 100 mm plus the gripped length (see Figure 2), and a width of 150 mm. The test piece shall be connected to t
29、he connecting plate by the mechanical fastener. The fastening width shall be at least 100 mm.6.2.2 Mechanical belt joints without connecting rodThe test piece shall consist of two lengths of belting, each of minimum length of 100 mm plus the gripped length (see Figure 2), and 150 mm wide, assembled
30、by means of the mechanical fastening to be used, not less than 100 mm wide.6.2.3 Overall width of fastening/number of hooksThe overall width of fastening shall be not less than 100 mm. To determine the number of hooks, use the formula:100 divided by the Pitch equal to the Number, rounded to the next
31、 whole number.The overall width of fastening is: the pitch times the number of hooks.EXAMPLEPitch of one hook: 14 mmDetermination of the number of hooks: 100/14 mm = 7,1 (rounded to 8)Overall width of fastening: 14 mm 8 = 112 mm.6.3 Number of test piecesThree test pieces shall be tested.6.4 Conditio
32、ning and test conditionsThe tests shall start not less than 24 h after manufacturing. This time includes 8 h for conditioning at one of the temperatures specified. (23 2) C or (20 2) C for temperate temperature control only; (27 2) C for tropical temperature control only.The tests shall be conducted
33、 at the same temperature as used for conditioning. A certain humidity for conditioning and testing is not required.The temperature at which the test pieces were conditioned and tested shall be recorded in the test report.In the event of dispute, the conditioning period shall be 72 h.7 Procedure7.1 F
34、or mechanical belt joints with a connecting rodFasten the test piece in one of the grips of the dynamometer and attach the adapter plate to the belt at the distance between grips as shown in Figure 2.Exert the tensile force such that it is applied symmetrically, i.e. that there is no tendency to sta
35、rt rupture at one end of the joint.6DIN EN ISO 1120:2013-04EN ISO 1120:2012 (E) Separate the grips at a rate of (100 10) mm/min; record the maximum force before the mechanical fastening breaks.7.2 For mechanical belt joints without a connecting rodFasten the ends of the test piece in the grips of th
36、e dynamometer as shown in Figure 2.Exert the tensile force such that it is applied symmetrically, i.e. that there is no tendency to start rupture at one end of the joint.Separate the grips at a rate of (100 10) mm/min. Record the maximum force before the mechanical fastening breaks.8 Expression of r
37、esultsDetermine the mean of the values obtained and calculate:a) the average breaking strength of the fastening, in newtons per millimetre width of fastening (see Figures 1 and 2);b) the strength of the fastening, expressed as a percentage of the full thickness nominal tensile strength (see ISO 283-
38、1:2000).7DIN EN ISO 1120:2013-04 EN ISO 1120:2012 (E) 9 Test reportThe test report shall include the following information:a) the width of fastening;b) the brand and type of fastener;c) the brand and the type of conveyor belt;d) the results obtained;e) the type of failure of the fastening, e.g. whet
39、her the belt is torn or whether the fastener is broken;f) the temperature of conditioning and testing (see 6.4).8DIN EN ISO 1120:2013-04EN ISO 1120:2012 (E) Dimensions in millimetres 10015012345678910Key1 dynamometer grip2 pivot (optional)3 adaptor plate4 rod5 half-fastening6 pitch7 test piece of belt8 width of fastening9 dynamometer grip10 gripped lengthFigure 2 Layout for static test9DIN EN ISO 1120:2013-04 EN ISO 1120:2012 (E) Bibliography1 ISO 21183-1, Light conveyor belts Part 1: Principal characteristics and applications10DIN EN ISO 1120:2013-04EN ISO 1120:2012 (E)
