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1、 Please see the administrative notes on page iii RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT, WITH THEIR COMMENTS, NOTIFICATION OF ANY RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE AND TO PROVIDE SUPPORT- ING DOCUMENTATION. IN ADDITION TO THEIR EVALUATION AS BEING ACCEPTABLE FOR INDUSTRIAL, TECH
2、NO- LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT INTERNATIONAL STANDARDS MAY ON OCCASION HAVE TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL TO BECOME STAN- DARDS TO WHICH REFERENCE MAY BE MADE IN NATIONAL REGULATIONS. Reference number ISO/FDIS 14691:2008(E) ISO 2008 FINAL DRAFT ISO/TC 67/SC 6 Sec
3、retariat: AFNOR Voting begins on: 2008-08-28 Voting terminates on: 2008-10-28 INTERNATIONAL STANDARD ISO/FDIS 14691 Petroleum, petrochemical and natural gas industries Flexible couplings for mechanical power transmission General-purpose applications Industries du ptrole, de la ptrochimie et du gaz n
4、aturel Accouplements flexibles pour transmission de puissance mcanique Applications dusage gnral Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 10/25/2008 20:07:55 MDTNo reproduction or networking permitte
5、d without license from IHS -,-,- ISO/FDIS 14691:2008(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the com
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8、e Central Secretariat at the address given below. Copyright notice This ISO document is a Draft International Standard and is copyright-protected by ISO. Except as permitted under the applicable laws of the users country, neither this ISO draft nor any extract from it may be reproduced, stored in a
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10、er. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Reproduction may be subject to royalty payments or a licensing agreement. Violators may be prosecuted. ii ISO 2008 All rights reserved Copyright Internation
11、al Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 10/25/2008 20:07:55 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/FDIS 14691:2008(E) ISO 2008 All rights reserved iii ISO/CEN PARALLEL PROCESSINGIS
12、O/CEN PARALLEL PROCESSING The CEN Secretary-General has advised the ISO Secretary-General that this final draft International Standard covers a subject of interest to European standardization. Consultation on the ISO/DIS had the same effect for CEN members as a CEN enquiry on a draft European Standa
13、rd. In accordance with the ISO-lead mode of collaboration as defined in the Vienna Agreement, this final draft, established on the basis of comments received, is hereby submitted to a parallel two-month FDIS vote in ISO and formal vote in CEN. Positive votes shall not be accompanied by comments. Neg
14、ative votes shall be accompanied by the relevant technical reasons. In accordance with the provisions of Council Resolution 15/1993, this document is circulated in the English language only. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Boei
15、ng Co/5910770001 Not for Resale, 10/25/2008 20:07:55 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/FDIS 14691:2008(E) iv ISO 2008 All rights reserved Contents Page Foreword.v Introduction .vi 1 Scope1 2 Normative references .1 3 Terms and definitions.2 4 Statutory req
16、uirements.5 5 Coupling selection5 5.1 General.5 5.2 Compliance6 6 Purchasers specification.6 7 Coupling rating8 8 Construction requirements9 8.1 General.9 8.2 Materials of construction .10 8.3 Coupling hubs.11 8.4 Bolting12 8.5 Electrical insulation 12 8.6 Alignment provision .12 8.7 Rotor dynamic d
17、ata.12 8.8 Non-horizontal applications.13 8.9 Additional requirements for gear couplings 13 8.10 Additional requirements for metallic flexible-element couplings13 8.11 Additional requirements for elastomeric couplings13 9 Balance.14 9.1 Objectives14 9.2 Balance quality14 9.3 Additional balancing req
18、uirements.15 9.4 Verification of coupling balance15 10 Accessories.15 11 Manufacturing quality, inspection, testing and preparation for shipment .15 11.1 Manufacturing quality.15 11.2 Inspection and testing16 11.3 Preparation for shipment .16 12 Vendors data.16 12.1 General.16 12.2 Proposals.16 12.3
19、 Contract data.17 Annex A (informative) Examples of misalignment19 Annex B (informative) Example of the determination of potential unbalance .21 Annex C (informative) Coupling tapers24 Annex D (normative) Coupling guards.25 Annex E (informative) Coupling datasheets 27 Bibliography .32 Copyright Inte
20、rnational Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 10/25/2008 20:07:55 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/FDIS 14691:2008(E) ISO 2008 All rights reserved v Foreword ISO (the Intern
21、ational Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has b
22、een established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical sta
23、ndardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies f
24、or 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 document may be the subject of patent rights. ISO shall not be held responsible for identifying any or a
25、ll such patent rights. ISO 14691 was prepared by Technical Committee ISO/TC 67, Materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries, Subcommittee SC 6, Processing equipment and systems. This second edition cancels and replaces the first edition (ISO 1
26、4691:1999), which has been technically revised. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 10/25/2008 20:07:55 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/FDIS 14691:2
27、008(E) vi ISO 2008 All rights reserved Introduction Users of this International Standard should be aware that further or differing requirements may be needed for individual applications. This International Standard is not intended to inhibit a vendor from offering, or the purchaser from accepting, a
28、lternative equipment or engineering solutions for the individual application. This may be particularly appropriate where there is innovative or developing technology. Where an alternative is offered, the vendor should identify any variations from this International Standard and provide details. For
29、the following applications, the use of ISO 10441 is recommended: large or high-speed machines that may be required to operate continuously for extended periods, are often unspared and are critical to the continued operation of the installation (special-purpose applications); machines in which the fi
30、rst lateral critical speed is less than the maximum required operating speed (flexible-shaft machines); machines in which the rotor dynamics are particularly sensitive to coupling unbalance. This International Standard requires the purchaser to specify certain details and features. A bullet () at th
31、e beginning of a subclause or paragraph indicates that either a decision is required or that further information is to be provided by the purchaser. This information should be indicated on the datasheet(s), typical examples of which are included as Annex E, otherwise it should be stated in the quota
32、tion request or in the order. The coupling vendor is not normally required to supply the coupling guard or guards. However, for completeness and for the information of the user of this International Standard, Annex D, which provides requirements for guards, has been added. Copyright International Or
33、ganization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 10/25/2008 20:07:55 MDTNo reproduction or networking permitted without license from IHS -,-,- FINAL DRAFT INTERNATIONAL STANDARD ISO/FDIS 14691:2008(E) ISO 2008 All rights reserved 1 P
34、etroleum, petrochemical and natural gas industries Flexible couplings for mechanical power transmission General- purpose applications 1 Scope This International Standard specifies the requirements for couplings for the transmission of power between the rotating shafts of two machines for general-pur
35、pose applications in the petroleum, petrochemical and natural gas industries. Such applications typically require couplings to transmit power at speeds not exceeding 4 000 r/min, between machines in which the first lateral critical speed is above the running speed range (stiff- shaft machines). It c
36、an, by agreement, be used for applications outside these limits. NOTE 1 Recommendations are included in the Introduction as to when the use of ISO 10441 should be considered. This International Standard is applicable to couplings designed to accommodate parallel (or lateral) offset, angular misalign
37、ment and axial displacement of the shafts without imposing excessive mechanical loading on the coupled machines. Couplings covered by this International Standard include gear (and other mechanical contact types), metallic flexible-element and various elastomeric types. Such couplings can be of all m
38、etal construction or can include components of non-metallic materials, such as composites. This International Standard covers design, materials of construction, inspection and testing of couplings and methods of attachment of the coupling to the shafts (including tapered sleeve and other proprietary
39、 devices). This International Standard does not apply to special types of couplings, such as clutch, hydraulic, eddy- current, rigid and radial-spline types. This International Standard does not define criteria for the selection of coupling types for specific applications. NOTE 2 In many cases, coup
40、lings covered by this International Standard are manufacturers catalogue items. 2 Normative references The 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 re
41、ferenced document (including any amendments) applies. ISO 286-2:1988, ISO system of limits and fits Part 2: Tables of standard tolerance grades and limit deviations for holes and shafts ISO 1940-1:2003, Mechanical vibration Balance quality requirements for rotors in a constant (rigid) state Part 1:
42、Specification and verification of balance tolerances ISO 8821, Mechanical vibration Balancing Shaft and fitment key convention ANSI/AGMA 9002, Bores and Keyways for Flexible Couplings (Inch Series) ANSI/AGMA 9003, Flexible Couplings Keyless Fits ANSI/AGMA 9112, Bores and Keyways for Flexible Couplin
43、gs (Metric Series) Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 10/25/2008 20:07:55 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/FDIS 14691:2008(E) 2 ISO 2008 All rights
44、reserved DIN 7190, Interference fits Calculation and design rules1) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 angular misalignment double-engagement couplings two minor angles between the extension of each machine shaft centre-line and
45、the centre-line of the structure joining the two flexible elements 3.2 angular misalignment single-engagement couplings minor angle between the extensions of the shaft centre-lines of the two coupled machines 3.3 axial displacement change in the relative axial position of the adjacent shaft ends of
46、two coupled machines, usually caused by thermal expansion 3.4 continuous torque rating coupling manufacturers declared maximum torque that the coupling can transmit continuously for the specified life 3.5 distance between shaft ends DBSE distance from the extreme end of one shaft (including any thre
47、aded end) to the extreme end of the next shaft or, in the case of integral flanges, the distance from the mating faces 3.6 double-engagement coupling coupling with two planes of flexure NOTE This arrangement enables couplings of certain types, notably gear and metallic flexible-element types, that c
48、annot normally accommodate parallel (or lateral) offset, to do so. 3.7 gear coupling coupling of the mechanical contact type that transmits torque and accommodates misalignment and axial displacement by relative rocking and sliding motion between mating, profiled gear teeth 3.8 lateral offset lateral distance between the centre-lines of two shafts that are not parallel, measured perpendicularly to the centre-line and in the plane of the shaft end of the driving machine See Annex A. 3.9 manufacturer agency res