《BS-EN-1677-3-2001-A1-2008.pdf》由会员分享,可在线阅读,更多相关《BS-EN-1677-3-2001-A1-2008.pdf(20页珍藏版)》请在三一文库上搜索。
1、BRITISH STANDARD BS EN 1677-3:2001 Components for slings Safety Part 3: Forged steel self-locking hooks Grade 8 ICS 53.020.30 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW +A1:2008 Licensed CopyChinese University of Hong Kong, 13/06/2009 05:40, Uncontrolled Copy, (c) BSI BS
2、EN 1677-3:2001 This British Standard, having been prepared under the direction of the Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 06 November 2001 BSI 2009 ISBN 978 0 580 602696 National foreword The UK partici
3、pation in its preparation was entrusted to Technical Committee MHE/1, Chains and fittings. Amendments issued since publication +A1 200: 8 This British Standard is the UK implementation of EN 1677-3:2001+A1:2008. It supersedes BS EN 1677-3:2001. The start and finish of text introduced or altered by a
4、mendment is indicated in the text by tags. Tags indicating changes to CEN text carry the number of the CEN amendment. For example, text altered by CEN amendment A1 is indicated by .ab A list of organizations represented on this committee can be obtained on request to its secretary. Compliance with a
5、 British Standard cannot confer immunity from legal obligations. Date Comments 31 May 2009 Implementation of CEN amendment A1:2008 A British Standard does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Licensed CopyChinese Univer
6、sity of Hong Kong, 13/06/2009 05:40, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1677-3:2001+A1 April 2008 ICS 53.020.30 Supersedes EN 1677-3:2001 English Version Components for slings - Safety - Part 3: Forged steel self- locking hooks - Grade 8 Accessoires pour
7、lingues - Scurit - Partie 3: Crochets autobloquants en acier forg - Classe 8 Einzelteile fr Anschlagmittel - Sicherheit - Teil 3: Geschmiedete, selbstverriegelnde Haken - Gteklasse 8 This European Standard was approved by CEN on 11 August 2001 and includes Amendment 1 approved by CEN on 21 February
8、2008. 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 obtaine
9、d on application to the CEN 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 Managemen
10、t Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
11、 Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form a
12、nd by any means reserved worldwide for CEN national Members. Ref. No. EN 1677-3:2001+A1:2008: E Licensed CopyChinese University of Hong Kong, 13/06/2009 05:40, Uncontrolled Copy, (c) BSI EN 1677-3:2001+A1:2008 (E) 2 Contents Page Foreword3 Introduction.4 1 Scope 4 2 Normative references4 3 Terms and
13、 definitions .5 4 Significant Hazards5 5 Safety requirements 6 5.1 Design.6 5.2 Dimensions.6 5.3 Materials and heat treatment8 5.4 Manufacturing methods and workmanship 8 5.5 Mechanical properties.9 6 Verification of safety requirements9 6.1 Qualification of personnel 9 6.2 Type tests .9 6.3 Manufac
14、turing test regime and acceptance criteria.11 7 Marking.12 8 Manufacturers certificate.12 9 Information for use12 Annex A (informative) Bases for the calculation of hook dimensions 13 Annex B (informative) Designation system for self-locking hooks - grade 8 .14 B.1 Designation 14 B.2 General format
15、.14 Annex ZA (informative) !Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC15 Annex ZB (informative) !Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC16 Bibliography17 BS EN 1677-3:2001+A1:2008 L
16、icensed CopyChinese University of Hong Kong, 13/06/2009 05:40, Uncontrolled Copy, (c) BSI EN 1677-3:2001+A1:2008 (E) 3 Foreword This document (EN 1677-3:2001+A1:2008) has been prepared by Technical Committee CEN/TC 168 “Chains, ropes, webbing, slings and accessories - Safety”, the secretariat of whi
17、ch is held by BSI. 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 October 2008, and conflicting national standards shall be withdrawn at the latest by October 2008. This document includes Amendme
18、nt 1, approved by CEN on 2008-02-21. This document supersedes EN 1677-3:2001. The start and finish of text introduced or altered by amendment is indicated in the text by tags ! “. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Asso
19、ciation, and supports essential requirements of EC Directive(s). For the relationship with EC Directives, see informative Annexes ZA and ZB, which are integral parts of this document. This European Standard is a part of a products standard related to safety for components for slings. The other Parts
20、 of EN 1677 for components for slings are: Part 1: Forged steel components - Grade 8 Part 2: Forged steel lifting hooks with latch - Grade 8 Part 4: Links - Grade 8 Part 5: Forged steel lifting hooks with latch - Grade 4 Part 6: Links - Grade 4 Annexes A and B of this European Standard are informati
21、ve. 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, Germany, Greece, Hungary, Iceland, Ireland, Ita
22、ly, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. BS EN 1677-3:2001+A1:2008 Licensed CopyChinese University of Hong Kong, 13/06/2009 05:40, Uncontrolled Copy, (c) BSI EN 1677-3:2001+A1:2008 (E)
23、 4 Introduction This European Standard has been prepared to be a harmonized standard providing one means of complying with the essential safety requirements of the Machinery Directive and associated EFTA regulations. The hooks covered by this Part of EN 1677 are normally supplied to be part of a sli
24、ng, but they may also be used for other applications. In such instances it is important that the hook design is checked to ensure its fitness for the intended use. The extent to which hazards are covered is indicated in the scope. In addition, lifting equipment shall conform as appropriate to EN 292
25、 for hazards that are not covered by this standard. 1 Scope This European Standard specifies requirements for forged steel self-locking lifting hooks of Grade 8 having eye or clevis and pin up to 21,2 t working load limit (WLL), mainly for use in: chain slings according to EN 818-4 steel wire rope s
26、lings according to prEN 13414-1 textile slings according to EN 1492-1, EN 1492-2 intended for lifting objects, materials or goods. The hazards covered by this part of EN 1677 are identified in clause 4. Annex A gives the bases for calculation of hook dimensions. Annex B gives an example of a designa
27、tion systems for hooks of Grade 8. 2 Normative references This European Standard incorporates by dated or undated reference provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references,
28、subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 292-2:1991/A1:1995, Safety of machiner
29、y - Basic concepts, general principles for design - Part 2: Technical principles and specifications (Amendment 1:1995) EN 818-4, Short link chain for lifting purposes - Safety - Part 4: Chain slings - Grade 8 EN 818-6, Short link chain for lifting purposes - Safety - Part 6: Chain slings - Specifica
30、tion for information for use and maintenance to be provided by the manufacturer EN 1050:1996, Safety of machinery - Principles for risk assessment EN 1492-1, Textile slings - Safety - Part 1: Flat woven webbing slings, made of man-made fibres, for general purpose use BS EN 1677-3:2001+A1:2008 Licens
31、ed CopyChinese University of Hong Kong, 13/06/2009 05:40, Uncontrolled Copy, (c) BSI EN 1677-3:2001+A1:2008 (E) 5 EN 1492-2, Textile slings - Safety - Part 2: Roundslings, made of man-made fibres, for general purpose use !EN 1677-1:2000+A1:2008“, Components for slings - Safety - Part 1: Forged steel
32、 components, Grade 8 prEN 13414-1, Steel wire rope slings - Safety - Part 1: Wire rope slings 3 Terms and definitions For the purposes of this European Standard, the terms and definitions given in !EN 1677-1+A1:2008“ apply, together with the following. 3.1 self-locking hook hook containing a locking
33、 mechanism, capable of being activated by the action of the load which, once correctly closed and locked, can only be opened in the unloaded condition by de-activation of the locking mechanism 4 Significant Hazards Accidental release of a load or release of a load due to failure of a hook puts at ri
34、sk, either directly or indirectly, the safety or health of those persons within the danger zone. In order to provide the necessary strength and durability of hooks this Part of EN 1677 gives requirements for the design, manufacture and testing to ensure the specified levels of performance are met. S
35、ince failure can be caused by the incorrect choice of grade and specification of hook, this Part of EN 1677 also gives requirements for marking and the manufacturers certificate. Errors of fitting can also lead to failure and this Part of EN 1677 contains dimensional requirements to allow correct fi
36、t. Risk of injury due to sharp edges, sharp angles or rough surfaces when handling is also covered by this standard. Those aspects of safe use associated with good practice are given in EN 818-6. Table 1 contains those hazards which require action to reduce risk identified by risk assessment as bein
37、g specific and significant for forged steel self-locking hooks of grade 8. Table 1 Significant hazards and associated requirements Hazards identified in accordance with annex A of EN 1050:1996 Relevant clause of annex A of EN 292-2: 1991/A1:1995 Relevant clause / subclause of this Part of EN 1677 1.
38、e Mechanical hazard1.3.25 due to inadequacy of4.1.2.35 strength 4.1.2.55 4.2.45 1.7.37 1.3 Cutting hazard1.3.45.4 1.8 Friction or abrasion 1.3.45.4 15 Errors of fitting hazard1.5.45.2 BS EN 1677-3:2001+A1:2008 Licensed CopyChinese University of Hong Kong, 13/06/2009 05:40, Uncontrolled Copy, (c) BSI
39、 EN 1677-3:2001+A1:2008 (E) 6 5 Safety requirements 5.1 Design The articulation and relative movement shall be in accordance with 5.1 of !EN 1677-1:2000+A1:2008“. NOTE 1 The form of the hook is not specified in detail. For example, a minimum value of dimension F (see Figure 1) as measured in any dir
40、ection is specified so that the eye of the hook can accommodate a pin, but the eye of the hook need not be circular. The form of the upper end shall be either of the eye type or the clevis type as designated in Table 2. A closed hook in the finished condition shall be able to withstand a bend test i
41、n accordance with 6.2.2 (see Figure 2). The latch shall be able to withstand a force f1, of 3000 N or equivalent to 20 % of the working load limit of the hook, whichever is the greater, when applied equidistant between the point of the hook and the centre of rotation of the latch (see Figure 3). The
42、 latch, when the hook is correctly closed and locked, shall be able to withstand a force f2, applied laterally to f1, as close as practicable to the tip of the latch, of 3000 N or equivalent to 10 % of the working load limit, whichever is the greater. The locking mechanism shall be activated by the
43、application of the load and shall be replaceable. The hook shall be able to withstand an impact to the eye or clevis of the latch, without opening, when tested in accordance with 6.2.4. The forces transmitted between the lock and the latch shall not be such that an impact on the latch causes a momen
44、t in the direction of rotation that opens the lock. The surface hardness of the lock shall be greater than that of the latch. NOTE 2 The hook should be easy to handle and operate. NOTE 3 The locking mechanism should be protected against ingress and entrapment of dust or other solids. 5.2 Dimensions
45、The principal dimensions of the hook shall conform to Table 3, in which the hook dimensions are related to the working load limit. NOTE 1 With an eye type hook, connecting devices can be required. NOTE 2 For direct use in wire rope slings and/or textile slings, dimension F should be larger than the
46、minimum value given in Table 3. In addition, the following requirements shall be met: a) the actual throat opening O is the smaller of O1 and O2 b) the actual point height B shall be at least 65 % of the actual throat opening O (see Figure 1); c) the actual throat opening O (see Figure 1) shall not
47、exceed 95 % of the actual seat diameter D; d) in the case of hooks having a clevis, the dimensions of the load pin and the slot on the clevis shall ensure articulation between pin and the chain; e) the hook shall be able to close over the maximum diameter of bar A, as indicated in Figure 1, that can
48、 be admitted through the actual throat opening O; BS EN 1677-3:2001+A1:2008 Licensed CopyChinese University of Hong Kong, 13/06/2009 05:40, Uncontrolled Copy, (c) BSI EN 1677-3:2001+A1:2008 (E) 7 f) the maximum values for H and L given in Table 3 shall not apply in the region of the locking mechanis
49、m. Table 2 Forms of hooks Form Description Principal use E Eye type Chain slings, wire rope slings and textile slings C Clevis type Mechanically assembled chain slings Key 1 Eye type 2 Clevis type 3 Load bearing pivot pin 4 Example of locking mechanism 5 Latch 6 Maximum diameter of bar Figure 1 Dimensions of self-locking hooks BS EN 1677-3:2001+A1:2008 Licensed CopyChinese University of Hong Kong, 13/06/2009 05:40, Uncontrolled Copy, (c) BSI EN 1677-3:2001+A1:2008 (E) 8 Table 3 Dimensions of hooks (see Figure 1) Code Working D O F H L Number
链接地址:https://www.31doc.com/p-3740306.html