1、March 2013DEUTSCHE NORM Normenausschuss Rundstahlketten (NRK) im DINDIN-SprachendienstEnglish price group 6No 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 sal
2、e for German Standards (DIN-Normen).ICS 53.020.30!%-=0“2102613www.din.deDDIN 5684-3Round steel link chains Fine tolerance hoist chains Part 3: Grade T (Types T, DAT and DT),English translation of DIN 5684-3:2013-03Rundstahlketten Fein tolerierte Hebezeugketten Teil 3: Gteklasse T (Ausfhrung T, DAT u
3、nd DT),Englische bersetzung von DIN 5684-3:2013-03Chanes en acier de section ronde Chanes de tolrance serre pour les palans chanes Partie 3: Classe T (Types T, DAT et DT),Traduction anglaise de DIN 5684-3:2013-03Together with DIN EN818-7:2008-07supersedesDIN 5684-3:1984-05, withdrawn2002-09www.beuth
4、.deDocument comprises 8 pages09.14 DIN 5684-3:2013-03 2 A comma is used as the decimal marker. Contents Page Foreword . 3 Introduction 4 1 Scope . 5 2 Normative references . 5 3 Terms and definitions 5 4 Requirements 5 5 Dimensions and designation . 5 5.1 Designation system for Grade T hoist chains
5、(Types T, DAT and DT) . 5 5.2 Dimensions 6 Annex A (informative) Bases for calculation . 8 A.1 General . 8 A.2 Dimensions 8 A.2.1 Material diameter 8 A.2.2 Pitch . 8 A.2.3 Internal width . 8 A.2.4 External width . 8 A.2.5 Gauge length . 8 DIN 5684-3:2013-03 3 Foreword This document has been prepared
6、 by Working Committee NA 085-00-04 AA Hebezeugketten of the Normenausschusses Rundstahlketten (NRK) (Round Steel Link Chains Standards Committee) in DIN. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. DIN and/or DKE shall not be
7、held responsible for identifying any or all such patent rights. For additional information regarding the NRK, visit us on the internet at www.nrk.din.de. A complete overview of the NRK standards (as of 2010) can be found in DIN Handbook 392 “Round Steel Link Chains” (in German language only) availab
8、le for purchase by e-mail: infobeuth.de. The DIN 5684 series consists of three parts, and the title of this part has been updated: Round steel link chains for hoists Part 1: Grade 5, calibrated, tested Round steel link chains for hoists Part 2: Grade 6, calibrated, tested Round steel link chains Fin
9、e tolerance hoist chains Part 3: Grade T (Types T, DAT and DT) Amendments The standard differs from DIN 5684-3:1984-05, which was withdrawn in 2002-09, as follows: a) the title has been changed (“Grade 8” changed to “Grade T”); b) the standard has been converted to a residual standard; c) the standa
10、rd has been editorially revised and brought into conformity with the current rules of presentation. Previous editions DIN 5684:1954-04 DIN 5684-3:1972-06, 1984-05 DIN 5684-3:2013-03 4 Introduction Fine tolerance Grade T hoist chains (Types T, DAT and DT) have been specified for use in newly develope
11、d manually operated and motor driven hoists since 2002 in EN 818-7. Because the member countries in the CEN/TC 168/WG 1 Welded round steel link chains and chain slings could not reach an agreement upon the tolerance for the pitch (1 pn) and the gauge length (11 pn) while working on EN 818-7, only to
12、lerance ranges are included in the European Standard. However, since the publication of DIN 5684-3 (1954-05) tolerances have always been available for both the pitch and the gauge length. Therefore they are also specified in this standard. The corresponding bases for calculation are defined in Annex
13、 A. In cases where individual nominal sizes, by adding the corresponding tolerances, reach greater values than those which are specified for the tolerance range of the corresponding nominal sizes in EN 818-7, this is due to deviations resulting from the defined rounding rules. Because the same toler
14、ance formula is the basis of both calculation methods, the hoist chains according to this standard conform to EN 818-7. With regard to the nominal pitch of fine tolerance Grade T hoist chains, a wide range of chain types are available in Europe due to the design specifications of hoist manufacturers
15、. Therefore, at European level, it was only logical to specify in EN 818-7 selected dimensions for the nominal pitch which were based upon corresponding ISO standards. Considering the market conditions in Germany, DIN 5684-3 still contains values for the nominal pitch commonly used in Germany, which
16、 are not part of the selected dimensions in EN 818-7. DIN 5684-3:2013-03 5 1 Scope The standard defines customary market dimensions for Grade T fine tolerance hoist chains (Types T, DAT and DT), which are in compliance with the requirements defined in DIN EN 818-7. 2 Normative references The followi
17、ng 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. DIN 685-1, Round steel link chains, tested Part 1: Terms DIN
18、 685-100, Round steel link chains, tested Part 100: Additional terms DIN EN 818-1, Short link chain for lifting purposes Safety Part 1: General conditions of acceptance DIN EN 818-7:2008, Short link chain for lifting purposes Safety Part 7: Fine tolerance hoist chain, Grade T (Types T, DAT and DT) 3
19、 Terms and definitions For the purposes of this document, the terms and definitions in DIN 685-1, DIN 685-100 and DIN EN 818-1 apply. 4 Requirements Chains in accordance with this standard are used primarily as load chains installed in hoists. They shall not be used as sling chains. For hoist chains
20、 conforming to this standard, the normative specifications as defined in DIN EN 818-7:2008-07 apply. In contrast to the 3 d pitch, specified in DIN EN 818-7, Table 1 of this standard includes the nominal pitch and the nominal gauge length with their corresponding tolerances, which are customarily us
21、ed in Germany. The relevant details are shown in Figure 1 and the bases for calculation are included in Annex A. 5 Dimensions and designation 5.1 Designation system for Grade T hoist chains (Types T, DAT and DT) The general format of the designation system for chains according to DIN 5684-3 correspo
22、nds with DIN EN 818-7. General format: EN 818-7 T 10 28 EN-number Type: T, DAT or DT Nominal size and nominal pitch of hoist chain DIN 5684-3:2013-03 6 5.2 Dimensions Figure 1 provides hoist chain and chain link dimensions. The corresponding values of the dimensions and masses are given in Table 1.
23、Key l is the multiple pitch length / gauge length pnis the nominal pitch dnis the nominal diameter of the unwelded chain leg dsis the weld diameter e is the length dimensionally affected by welding w3is the internal width at the weld w2is the external width over the weld Figure 1 Hoist chain and cha
24、in link dimensions The length dimensionally affected by welding e shall not extend by more than 0,6 dnto either side of the centre of the chain link (see Figure 1). DIN 5684-3:2013-03 7 Table 1 Dimensions and masses Dimensions in millimetres 1 2 3 4 5 6 7 8 9 Nominal size Material diameter Pitch Wid
25、th Gauge lengthaMass/ Metre kg/m pnTolerance Internal External dnTolerance w3bw211 pnTolerance min. max. 4 0,2 12 + 0,15 - 0,1 4,8 13,6 132 + 0,4 - 0,2 0,35 5 0,2 15 + 0,2 - 0,1 6 17 165 + 0,5 - 0,3 0,54 5 0,2 18,5 + 0,25 - 0,1 6 17 203,5 + 0,7 - 0,3 0,5 6 0,2 18 + 0,25 - 0,1 7,2 20,4 198 + 0,6 - 0,
26、3 0,8 6 0,2 18,5 + 0,25 - 0,1 7,2 20,4 203,5 + 0,7 - 0,3 0,78 7 0,3 21 + 0,3 - 0,15 8,4 23,8 231 + 0,7 - 0,4 1,1 7 0,3 22 + 0,3 - 0,15 8,4 23,8 242 + 0,8 - 0,4 1,0 8 0,3 24 + 0,3 - 0,15 9,6 27,2 264 + 0,8 - 0,4 1,4 9 0,4 27 + 0,35 - 0,2 10,8 30,6 297 + 1 - 0,5 1,8 10 0,4 28 + 0,35 - 0,2 12 34 308 +
27、1 - 0,5 2,2 11 0,4 31 + 0,4 - 0,2 13,2 37,4 341 + 1,1 - 0,5 2,7 13 0,5 36 + 0,5 - 0,25 15,6 44,2 396 + 1,3 - 0,6 3,8 14 0,6 41 + 0,55 - 0,25 16,8 47,6 451 + 1,4 - 0,7 4,3 16 0,6 45 + 0,6 - 0,3 19,2 54,4 495 + 1,6 - 0,8 5,7 18 0,9 50 + 0,65 - 0,35 21,6 61,2 550 + 1,8 - 0,9 7,3 20 1 60 + 0,8 - 0,4 24
28、68 660 + 2,1 - 1,1 8,8 22 1,1 66 + 0,85 - 0,45 26,4 74,8 726 + 2,3 - 1,2 10,7 a The chain and chain wheel will work together smoothly, if the chain manufacturer is provided with the chain wheel.b The last chain link of the chain strand shall not be widened through the connecting element of the hoist
29、. There should be a free movement allowance of at least 5 % to w3. DIN 5684-3:2013-03 8 Annex A (informative) Bases for calculation A.1 General The values for the dimensions in Table 1 are based upon the design factors dependent on the nominal size according to Table A.1. They are explained individu
30、ally in A.2. The correlating letters for the dimensions are shown in Figure 1. Table A.1 Construction factors dependent on nominal size A.2 Dimensions A.2.1 Material diameter The tolerances for nominal sizes dn 16 mm are based on a limit deviation of 4 % of the nominal size dnand for nominal size dn
31、 18 mm on a limit deviation of 5 % of the nominal size dn. The calculated values are rounded up to 0,1 mm. A.2.2 Pitch The tolerance, in percent, is based on the formula .33,065,1+nThus, for a pitch (n = 1) there is a resulting tolerance of 1,98 % of the nominal pitch pn. This is divided into +1,32
32、% (+2/3) and 0,66 % (1/3). The calculated values are rounded up to 0,05 mm. A.2.3 Internal width The internal width is w3= 1,2 dn. The calculated values are rounded up to 0,1 mm. A.2.4 External width The external width is w2= 3,4 dn. The calculated values are rounded up to 0,1 mm. A.2.5 Gauge length
33、 The nominal gauge length is l = 11 pn. The calculated values are rounded up to 0,5 mm. The tolerance, in percent, is also based on the formula .33,065,1+nThus, for a gauge length of (n = 11) there is a resulting tolerance of 0,48 % of the nominal gauge length l. This is divided into +0,32 % (+2/3) and 0,16 % (1/3) . The calculated values are rounded up to 0,1 mm. External width w2max3,4 dnInternal width w3min1,2 dnWelded chain leg dsmax1,08 dnUnwelded chain leg dn1 dnWidth tolerance Bt0,12 dn
