1、BS EN ISO14691:2008ICS 75.180.20NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDPetroleum,petrochemical andnatural gas industries Flexible couplingsfor mechanical powertransmission General-purposeapplications (ISO14691:2008)Licensed Copy: Wang Bin, ISO/EXCHANGE
2、CHINA STANDARDS, 05/06/2009 03:54, Uncontrolled Copy, (c) BSIThis British Standardwas published under theauthority of the StandardsPolicy and StrategyCommittee on 28 February2009 BSI 2009ISBN 978 0 580 58659 0Amendments/corrigenda issued since publicationDate CommentsBS EN ISO 14691:2008National for
3、ewordThis British Standard is the UK implementation of EN ISO 14691:2008.It supersedes BS EN ISO 14691:2000 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee PSE/17/-/6, Materials and equipment for petroleum,petrochemical and natural gas industries.A list
4、 of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obl
5、igations.Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 05/06/2009 03:54, Uncontrolled Copy, (c) BSIEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 14691December 2008ICS 75.180.20 Supersedes EN ISO 14691:2000 English VersionPetroleum, petrochemical and natural gas industries - Flexible
6、couplings for mechanical power transmission - General-purposeapplications (ISO 14691:2008)Industries du ptrole, de la ptrochimie et du gaz naturel -Accouplements flexibles pour transmission de puissancemcanique - Applications dusage gnral (ISO14691:2008)Erdl-, petrochemische und Erdgasindustrie - Fl
7、exibleKupplungen fr mechanische Kraftbertragung -Allgemeine Anwendungsflle (ISO 14691:2008)This European Standard was approved by CEN on 28 November 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the stat
8、us of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A v
9、ersion in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, De
10、nmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATI
11、ONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 14691:2008: ELicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 05/06/2009 03:54, Unc
12、ontrolled Copy, (c) BSIBS EN ISO 14691:2008EN ISO 14691:2008 (E) 3 Foreword This document (EN ISO 14691:2008) has been prepared by Technical Committee ISO/TC 67 “Materials, equipment and offshore structures for petroleum and natural gas industries“ in collaboration with Technical Committee CEN/TC 12
13、 “Materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by
14、June 2009, and conflicting national standards shall be withdrawn at the latest by June 2009. Attention is drawn to the possibility that some of the elements of 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 r
15、ights. This document supersedes EN ISO 14691:2000. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
16、Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 14691:2008 has been approved by CEN as a EN ISO 14691:200
17、8 without any modification. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 05/06/2009 03:54, Uncontrolled Copy, (c) BSIBS EN ISO 14691:2008ISO 14691:2008(E) ISO 2008 All rights reserved iiiContents Page Foreword iv Introduction v 1 Scope . 1 2 Normative references . 1 3 Terms and definitions
18、. 2 4 Statutory requirements 5 5 Coupling selection 5 5.1 General. 5 5.2 Compliance 6 6 Purchasers specification 6 7 Coupling rating . 8 8 Construction requirements 9 8.1 General. 9 8.2 Materials of construction . 10 8.3 Coupling hubs. 11 8.4 Bolting 12 8.5 Electrical insulation 12 8.6 Alignment pro
19、vision . 12 8.7 Rotor dynamic data 12 8.8 Non-horizontal applications 13 8.9 Additional requirements for gear couplings 13 8.10 Additional requirements for metallic flexible-element couplings 13 8.11 Additional requirements for elastomeric couplings . 13 9 Balance 14 9.1 Objectives 14 9.2 Balance qu
20、ality 14 9.3 Additional balancing requirements. 15 9.4 Verification of coupling balance . 15 10 Accessories. 15 11 Manufacturing quality, inspection, testing and preparation for shipment . 15 11.1 Manufacturing quality. 15 11.2 Inspection and testing 16 11.3 Preparation for shipment . 16 12 Vendors
21、data 16 12.1 General. 16 12.2 Proposals. 16 12.3 Contract data. 17 Annex A (informative) Examples of misalignment 19 Annex B (informative) Example of the determination of potential unbalance . 21 Annex C (informative) Coupling tapers 24 Annex D (normative) Coupling guards 25 Annex E (informative) Co
22、upling datasheets 27 Bibliography . 32 Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 05/06/2009 03:54, Uncontrolled Copy, (c) BSIBS EN ISO 14691:2008ISO 14691:2008(E) iv ISO 2008 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation o
23、f 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 been established has the right to be represented on that committee. In
24、ternational 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 standardization. International Standards are drafted in accordance with
25、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 for voting. Publication as an International Standard requires approval
26、 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 all such patent rights. ISO 14691 was prepared by Technical Committee
27、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 14691:1999), which has been technically revised. Licensed Copy: Wang B
28、in, ISO/EXCHANGE CHINA STANDARDS, 05/06/2009 03:54, Uncontrolled Copy, (c) BSIBS EN ISO 14691:2008ISO 14691:2008(E) ISO 2008 All rights reserved vIntroduction Users of this International Standard should be aware that further or differing requirements may be needed for individual applications. This I
29、nternational Standard is not intended to inhibit a vendor from offering, or the purchaser from accepting, alternative equipment or engineering solutions for the individual application. This may be particularly appropriate where there is innovative or developing technology. Where an alternative is of
30、fered, the vendor should identify any variations from this International Standard and provide details. For 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 criti
31、cal to the continued operation of the installation (special-purpose applications); machines in which the first 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. Th
32、is International Standard requires the purchaser to specify certain details and features. A bullet () at the 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
33、datasheet(s), typical examples of which are included as Annex E, otherwise it should be stated in the quotation 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 Internat
34、ional Standard, Annex D, which provides requirements for guards, has been added. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 05/06/2009 03:54, Uncontrolled Copy, (c) BSIBS EN ISO 14691:2008Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 05/06/2009 03:54, Uncontrolled Copy, (c) BSIB
35、S EN ISO 14691:2008INTERNATIONAL STANDARD ISO 14691:2008(E) ISO 2008 All rights reserved 1Petroleum, petrochemical and natural gas industries Flexible couplings for mechanical power transmission General-purpose applications 1 Scope This International Standard specifies the requirements for couplings
36、 for the transmission of power between the rotating shafts of two machines for general-purpose 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 f
37、irst lateral critical speed is above the running speed range (stiff-shaft machines). It can, 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 appli
38、cable to couplings designed to accommodate parallel (or lateral) offset, angular misalignment 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)
39、, metallic flexible-element and various elastomeric types. Such couplings can be of all metal 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
40、 attachment of the coupling to the shafts (including tapered sleeve and other proprietary 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 f
41、or the selection of coupling types for specific applications. NOTE 2 In many cases, couplings 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 referenc
42、es, only the edition cited applies. For undated references, the latest edition of the referenced 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, Mechanica
43、l vibration Balance quality requirements for rotors in a constant (rigid) state Part 1: 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
44、, Flexible Couplings Keyless Fits ANSI/AGMA 9112, Bores and Keyways for Flexible Couplings (Metric Series) Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 05/06/2009 03:54, Uncontrolled Copy, (c) BSIBS EN ISO 14691:2008ISO 14691:2008(E) 2 ISO 2008 All rights reservedDIN 7190, Interference fit
45、s 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 the centre-line of the structure joi
46、ning 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 two coupled machines, usually caused
47、 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 threaded end) to the extreme end of the
48、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 cannot normally accommodate parallel
49、(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 responsible for the design and fabrication of t
