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. ICS 53.040.20 ISBN 0-626-17940-8 SANS 1977:2006Edition 1ISO 1977:2000Edition 1SOUTH AFRICAN NATIONAL STANDARD Conveyor chains, attachments and sprockets
4、This national standard is the identical implementation of ISO 1977:2000 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 1568 interna
5、tional code + 27 12 www.stansa.co.za Standards South Africa SANS 1977:2006 Edition 1 ISO 1977:2000 Edition 1 Table of changes Change No. Date Scope Abstract Specifies the characteristics of bush, plain and flanged roller chains of both solid and hollow bearing pin types designed for general conveyin
6、g and mechanical handling duties, together with associated chain sprockets and attachments. The chain dimensions specified in this standard will ensure interchangeability of complete chains and individual links for repair purposes. Keywords bush chains, chain drives, chain pitch, chains, chain wheel
7、s, conveyor chains, hauling plants, roller chains, specifications, sprockets, sprocket wheels. National foreword This South African standard was approved by National Committee StanSA SC 5120.09C, Mining equipment Chains and chain wheels for power transmission and conveyors, in accordance with proced
8、ures of Standards South Africa, in compliance with annex 3 of the WTO/TBT agreement. Reference numberISO 1977:2000(E)ISO 2000INTERNATIONALSTANDARDISO1977First edition2000-11-01Conveyor chains, attachments andsprocketsChanes de manutention, plaques-attaches et roues dentesISO 1977:2000(E)PDF disclaim
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11、he PDF-creation parameterswere optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely eventthat a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO 2000All rights reserve
12、d. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronicor mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member bodyin the country of the requester.I
13、SO copyright officeCase postale 56 Gb7 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.chWeb www.iso.chPrinted in Switzerlandii ISO 2000 All rights reservedISO 1977:2000(E) ISO 2000 All rights reserved iiiContents PageForeword.ivIntroduction.v1 Scope 12 Normative refe
14、rence 13 Chains .13.1 Nomenclature.13.2 Dimensions.13.3 Tensile testing63.4 Length accuracy 63.5 Cranked links .63.6 Designation 63.7 Marking .64 Attachments .74.1 K attachments 74.2 Deep plates.75 Sprockets105.1 Diametral dimensions .105.2 Sprocket tooth gap form .125.3 Rim profile 135.4 Radial run
15、-out.145.5 Axial run-out.145.6 Bore tolerances145.7 Marking .14Annex A (normative) Pitch-circle diameters 15ISO 1977:2000(E)iv ISO 2000 All rights reservedForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISOmember bodies). The w
16、ork of preparing International Standards is normally carried out through ISO technicalcommittees. Each member body interested in a subject for which a technical committee has been established hasthe right to be represented on that committee. International organizations, governmental and non-governme
17、ntal, inliaison with ISO, also take part in the work. ISO collaborates closely with the International ElectrotechnicalCommission (IEC) on all matters of electrotechnical standardization.International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.Draft Int
18、ernational Standards adopted by the technical committees are circulated to the member bodies 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 Internationa
19、l Standard may be the subject ofpatent rights. ISO shall not be held responsible for identifying any or all such patent rights.International Standard ISO 1977 was prepared by Technical Committee ISO/TC 100, Chains and chain wheels forpower transmission and conveyors.This first edition of ISO 1977 ca
20、ncels and replaces ISO 1977-1:1976, ISO 1977-2:1974, and ISO 1977-3:1974,which have been technically revised.Annex A forms an integral part of this International Standard.ISO 1977:2000(E) ISO 2000 All rights reserved vIntroductionISO 1977 combines into a single document ISO 1977-1, ISO 1977-2 and IS
21、O 1977-3, which covered metric-serieschains and attachments, and chain wheels, while at the same time revising their technical content.The principle technical changes are: a reduction in the flanged roller dimensions and the width between outerplates in the MC series of chains, an increase in the wi
22、dth between inner plates in M-series, MC56, MC112 andMC224 chains, and the addition of the small roller diameter to the MC series. New information on the calculation ofsprocket tip diameters and tooth heights above root diameters is also given.INTERNATIONAL STANDARD ISO 1977:2000(E) ISO 2000 All rig
23、hts reserved 1Conveyor chains, attachments and sprockets1 ScopeThis International Standard specifies the characteristics of bush, plain and flanged roller chains of both solid andhollow bearing pin types designed for general conveying and mechanical handling duties, together with associatedchain spr
24、ockets and attachments. The chain dimensions specified in this International Standard will ensureinterchangeability of complete chains and individual links for repair purposes.This International Standard is applicable to sprockets with from 6 to 40 teeth. Control criteria for sprockets aredefined to
25、 ensure correct meshing, operation and transmission of load in use under normal operating conditions.NOTE Controls do not necessarily determine sprocket design parameters.Specifications are also given for K attachments and deep plates for use with the conveyor chains conforming to thisInternational
26、Standard.2 Normative referenceThe following normative document contains provisions which, through reference in this text, constitute provisions ofthis International Standard. For dated references, subsequent amendments to, or revisions of, any of thesepublications do not apply. However, parties to a
27、greements based on this International Standard are encouraged toinvestigate the possibility of applying the most recent edition of the normative document indicated below. Forundated references, the latest edition of the normative document referred to applies. Members of ISO and IECmaintain registers
28、 of currently valid International Standards.ISO 286-2:1988, ISO system of limits and fits Part 2: Tables of standard tolerance grades and limit deviations forholes and shafts.3Chains3.1 NomenclatureThe nomenclature of the chains and their component parts is presented in Figure 1.3.2 DimensionsConvey
29、or chain dimensions shall conform to those given in Table 1 or Table 2 (see Figure 2). Both maximum andminimum dimensions are specified to ensure the interchangeability of links made by different chain manufacturers.Although these represent limits for interchangeability, they are not necessarily to
30、be regarded as limits of tolerancefor manufacture.ISO 1977:2000(E)2 ISO 2000 All rights reserveda) Solid-bearing pin chainb) Hollow-bearing pin chainc) Inner linkd) Outer link (solid-bearing pins) e) Outer link (hollow-bearing pins)f) Connecting link (cotter pin fasteners)g) Connecting link (nut fas
31、teners)ISO 1977:2000(E) ISO 2000 All rights reserved 3h) Cranked link double (solid-bearing pin) i) Cranked link double (hollow-bearing pin)Key1 Roller 6 Bearing pins (hollow) 11 Nut fasteners2 Bush 7 Fixed outer plate 12 Cranked plate3 Inner plate 8 Detachable plate 13 Bearing pin (riveted)4 Outer
32、plate 9 Connecting pins5 Bearing pins (solid) 10 Cotter pin fastenersaaThe type of fastener (cotter pin, nut, etc.) is optional.Figure 1 Chain partsd1plain roller diameter b3width between outer plates d6hollow-pin bored2bearing-pin body diameter b4width over bearing pins d7small roller diameterd3bus
33、h bore b7additional width for joint fasterd4bush diameter l1cranked link dimensionh2plate depthb1width between inner platesb2width over inner linksFlange roller dimensions:Gbe d5flange diameterGbe b11flange widthNOTE 1 Bearing pins may be of necked design, as shown here, or plain as in Figure 1.NOTE
34、 2 These illustrations do not define the true form of the chain plates, pins, bushes or rollers.Figure 2 Chain dimensions and symbols (see Table 1 and Table 2)ISO 1977:2000(E)4 ISO 2000 All rights reservedTable 1 Solid pin conveyor chain dimensions and characteristicsTensilestrengthd1PitchabcpkN mm
35、mmISOchainNo.(basic)min. max. 40 50 63 80 100 125 160 200 250 315 400 500 630 800 1000M20 20 25 XM28 28 30 XM40 40 36M56 56 42 XM80 80 50M112 112 60 XM160 160 70 XM224 224 85 XM315 315 100 XM450 450 120M630 630 140M900 900 170 XaPitch, p, is a theoretical reference dimension used in the calculation
36、of chain lengths and sprocket dimensions, and is notintended for use in the inspection of individual links.bThose pitches indicated by an X are for bush and small roller chains only.cThose pitches within the shaded area are the preferred pitches.dThe cranked link dimension l1also determines the maxi
37、mum plate length and the limit of the path of articulation takingminimum play into account.Table 2 Hollow pin conveyer chain dimensions and characteristicsTensilestrengthd1Pitchabpd2d3d4h2mm mm mmISOchainNo.(basic) kNmax. 63 80 100 125 160 200 250 315 400 500 max. min. max max.MC28 28 36 13 13,1 17,
38、5 26MC56 56 50 15,5 15,6 21,0 36MC112 112 70 22 22,2 29,0 51MC224 224 100 31 31,2 41,0 72aPitch, p, is a theoretical reference dimension used in the calculation of chain lengths and sprocket dimensions, and is notintended for use in the inspection of individual links.bThose pitches within the shaded
39、 area are the preferred pitches.cThe cranked link dimension l1also determines the maximum plate length and the limit of the path of articulation takingminimum play into account.ISO 1977:2000(E) ISO 2000 All rights reserved 5Table 1 (continued)d2d3d4h2b1b2b3b4b7MeasuringForcel1dd5b11d7mm mmmax. min.
40、max. max. min. max. min. max. max.kNmin. max. max. max.6 6,1 9 19 16 22 22,2 35 7 0,4 12,5 32 3,5 12,57 7,1 10 21 18 25 25,2 40 8 0,56 14 36 4 158,5 8,6 12,5 26 20 28 28,3 45 9 0,8 17 42 4,5 1810 10,1 15 31 24 33 33,3 52 10 1,12 20,5 50 5 2112 12,1 18 36 28 39 39,4 62 12 1,6 23,5 60 6 2515 15,1 21 4
41、1 32 45 45,5 73 14 2,24 27,5 70 7 3018 18,1 25 51 37 52 52,5 85 16 3,2 34 85 8,5 3621 21,2 30 62 43 60 60,6 98 18 4,5 40 100 10 4225 25,2 36 72 48 70 70,7 112 21 6,3 47 120 12 5030, 30,2 42 82 56 82 82,8 135 25 9 55 140 14 6036 36,2 50 103 66 96 97 154 30 12,5 66,5 170 16 7044 44,2 60 123 78 112 113
42、 180 37 18 81 210 18 85Table 2 (continued)b1b2b3b4b7MeasuringForcel1cd5b11d6d7mm mmmin. max. min. max. max.kNmin. max. max. min. max.20 28 28,3 42 10 0,56 17,0 42 4,5 8,2 2524 33 33,3 48 13 1,12 23,5 60 5 10,2 3032 45 45,5 67 19 2,24 34,0 85 7 14,3 4243 60 60,6 90 24 4,50 47,0 120 10 20,3 60ISO 1977
43、:2000(E)6 ISO 2000 All rights reserved3.3 Tensile testingThe test length shall have a minimum of three free pitches. The ends shall be attached to the testing-machineshackles by a pin through the plate holes or the bushes. The shackles shall be designed so as to allow universalmovement. The actual t
44、est method shall be left to the manufacturers discretion. Tests in which failures occuradjacent to the shackles shall be disregarded.3.4 Length accuracy3.4.1 GeneralWhen measured in accordance with the requirements given in 3.4.2, 3.4.3 and 3.4.4, the finished chain shall beaccurate to within0,25%0o
45、f the nominal chain length.NOTE Chains that work in parallel can be matched by agreement between the purchaser and manufacturer.3.4.2 Standard test-measurement lengthThe length of chain for measurement shall be that nearest to 3 000 mm with an odd number of pitches, terminatingwith inner links at ea
46、ch end.3.4.3 SupportThe chain, in unlubricated condition, shall be supported throughout its entire length.3.4.4 Measuring forceA force equal to 1/50 of the appropriate tensile strength given in Table 1 or Table 2 shall be applied.3.5 Cranked linksIn order to obtain an odd number of pitches in an end
47、less chain, a cranked link is used see Figure 1 h) and 1 i).The cranked link dimension of a chain shall correspond to its respective l1as given in Table 1 or Table 2 and asappropriate.3.6 DesignationThe designation numbers for conveyor chains are based on the ISO numbers given in Table 1 and Table 2
48、. Thesenumbers are derived from the minimum tensile strength (in kilonewtons) and have been given the prefixes M, toindicate a solid-bearing pin chain, and MC, to indicate a hollow-bearing pin chain.EXAMPLE M80 signifies a solid-bearing pin chain of 80 kN tensile strength.MC224 signifies a hollow-be
49、aring pin chain of 224 kN tensile strength.The addition of the letter B, F, P or S indicates type: bush, flanged roller, plain or small roller, respectively. Theaddition of further digits indicates the pitch in millimetres.EXAMPLE MC224 chain with flanged roller and pitch of 200 mm:MC224-F-2003.7 MarkingThe chains shall be marked with the manufacturers name or trademark, and should be marked with the respectiveISO chain number given in Table 1 or Table 2.ISO 1977:2000(E) ISO 2000 All rights reserved 74 Attachments4.1 K attachment
