《BS-EN-1677-3-2001.pdf》由会员分享,可在线阅读,更多相关《BS-EN-1677-3-2001.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 The European Standard EN 1677-3:2001 has the status of a British Standard ICS 53.020.30 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Licensed Copy: sheffieldun sh
2、effieldun, na, Fri Nov 17 08:41:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 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
3、 06 November 2001 BSI 06 November 2001 ISBN 0 580 38400 4 National foreword This British Standard is the official English language version of EN 1677-3:2001. The UK participation in its preparation was entrusted to Technical Committee MHE/1, Chains and fittings, which has the responsibility to: A li
4、st of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “Internatio
5、nal Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a Briti
6、sh Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European deve
7、lopments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 16, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments is
8、sued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:41:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1677-3 September 2001 ICS 53.020.30 English version Components for slings - Safety - Part 3: Fo
9、rged steel self- locking hooks - Grade 8 Accessoires pour lingues - Scurit - Partie 3: Crochets autobloquants en acier forg - Classe 8 Einzelteile fr Anschlagmittel - Sicherheit - Teil 1: Geschmiedete, selbstverriegelnde Haken - Gteklasse 8 This European Standard was approved by CEN on 11 August 200
10、1. 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 obtained o
11、n application to the 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 Management Centre ha
12、s the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMIT
13、TEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2001 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1677-3:2001 E Licensed Copy: sheffield
14、un sheffieldun, na, Fri Nov 17 08:41:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 1677-3:2001 (E) 2 Contents page Foreword3 1Scope4 2Normative references5 3Terms and definitions5 4Significant hazards6 5Safety requirements7 6Verification of safety requirements10 7Marking12 8Manufacturers certific
15、ate12 9Information for use12 Annex A (informative) Bases for the calculation of hook dimensions13 Annex B (informative) Designation system for self locking hooks - grade 814 Annex ZA (informative) Relationship of this document with EC Directives15 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov
16、17 08:41:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 1677-3:2001 (E) 3 Foreword This European Standard has been prepared by Technical Committee CEN/TC 168, “Chains, ropes, webbing, slings and accessories - Safety” the Secretariat of which is held by BSI. This European Standard shall be given th
17、e status of a national standard, either by publication of an identical text or by endorsement, at the latest by March 2002, and conflicting national standards shall be withdrawn at the latest by March 2002. This European Standard has been prepared under a mandate given to CEN by the European Commiss
18、ion and the European Free Trade Association, and supports essential requirements of EC Directive(s). For the relationship with EC Directives, see informative annex ZA, which is an integral part of this standard. This European Standard is a part of a products standard related to safety for components
19、 for slings. The other Parts 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 This is the first edition o
20、f this Part of EN 1677. Annexes A and B of this European Standard are informative. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, Fra
21、nce, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:41:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 1677-3:2001 (E) 4 Introduction This European Stan
22、dard 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 sling, but they may also be used for
23、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 for hazards that are not covered
24、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 slings according to prEN 13414-1 te
25、xtile 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 designation systems for hooks of Grade
26、8. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:41:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 1677-3:2001 (E) 5 2 Normative references This European Standard incorporates by dated or undated reference provisions form other publications. These normative references are cited at the
27、appropriate places in the text and the publications are listed hereafter. For dated references, 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 p
28、ublication referred to applies (including amendments). EN 292-2:1991/A1:1995Safety of machinery - 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
29、8 EN 818-6Short link chain for lifting purposes - Safety - Part 6: Chain slings - Specification for information for use and maintenance to be provided by the manufacturer EN 1050:1996Safety of machinery - Principles for risk assessment EN 1492-1Textile slings - Safety - Part 1: Flat woven webbing sl
30、ings, made of man- made fibres, for general purpose use EN 1492-2Textile slings - Safety - Part 2: Roundslings, made of man-made fibres, for general purpose use EN 1677-1:2000Components for slings - Safety - Part 1: Forged steel components, Grade 8 prEN 13414-1Steel wire rope slings - Safety - Part
31、1: Wire rope slings 3 Terms and definitions For the purposes of this European Standard, the terms and definitions given in EN 1677-1 apply, together with the following. 3.1 self-locking hook: hook containing a locking mechanism, capable of being activated by the action of the load which, once correc
32、tly closed and locked, can only be opened in the unloaded condition by de-activation of the locking mechanism Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:41:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 1677-3:2001 (E) 6 4 Significant hazards Accidental release of a load or release
33、of a load due to failure of a hook puts at risk, 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 t
34、he specified levels of performance are met. Since 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
35、 dimensional requirements to allow correct fit. 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 redu
36、ce risk identified by risk assessment as being 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 Relevan
37、t clause / subclause of this Part of EN 1677 1.eMechanical hazard1.3.25 due to inadequacy of4.1.2.35 strength4.1.2.55 4.2.45 1.7.37 1.3Cutting hazard1.3.45.4 1.8Friction or abrasion hazard 1.3.45.4 15Errors of fitting hazard1.5.45.2 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:41:06 GMT
38、+00:00 2006, Uncontrolled Copy, (c) BSI EN 1677-3:2001 (E) 7 5 Safety requirements 5.1 Design The articulation and relative movement shall be in accordance with 5.1 of EN 1677-1:2000. NOTE 1 The form of the hook is not specified in detail. For example, a minimum value of dimension F (see Figure 1) a
39、s measured in any direction 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 wi
40、thstand a bend test in 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
41、 (see Figure 3). The 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
42、be activated by the 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 l
43、atch causes a moment 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 soli
44、ds. 5.2 Dimensions 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
45、be larger than the 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 F
46、igure 1) shall not 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
47、 Figure 1, that can be admitted through the actual throat opening O; f) the maximum values for H and L given in Table 3 shall not apply in the region of the locking mechanism. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:41:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 1677-3:2001 (E
48、) 8 Table 2 - Forms of hooks FormDescriptionPrincipal use EEye typeChain slings, wire rope slings and textile slings CClevis typeMechanically 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 - Dimen
49、sions of self-locking hooks Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:41:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 1677-3:2001 (E) 9 Table 3 - Dimensions of hooks (see Figure 1) CodeWorkingDOFHL Numberload limitmin.min.min.maxmax. (WLL)mmmmmmmmmm t 6 1,122217122517 7 1,52620142920 8 23023163423 9 2,53426183826 10 3,153829204329 11 44232234832 13 5,34937265537 14 65240285940 16 86046326846 18106751367651 1911,27154388054 2012,57557408557 22158263449363 23168565469665 252095725110772 2621,298755211175 5.3 Materials and heat
链接地址:https://www.31doc.com/p-3741861.html