《【BS英國標(biāo)準(zhǔn)】BS EN 1341162004 鋼絲繩終端設(shè)備 安全性 第6部分：不對稱楔形座U形夾》由會(huì)員分享，可在線閱讀，更多相關(guān)《【BS英國標(biāo)準(zhǔn)】BS EN 1341162004 鋼絲繩終端設(shè)備 安全性 第6部分：不對稱楔形座U形夾（27頁珍藏版）》請?jiān)谘b配圖網(wǎng)上搜索。
1、Licensed Copy: London South Bank University, London South Bank University, Sat Mar 18 06:55:25 GMT 2006, Uncontrolled Copy, (c) BSI
BRITISH STANDARD BS EN
13411-6:2004
Terminations for steel wire ropes — Safety —
Part 6: Asymmetric wedge socket
2、
The European Standard EN 13411-6:2004 has the status of a
British Standard
ICS 53.020.30; 77.140.99
BS EN 13411-6:2004
National foreword
3、
This British Standard is the official English language version of
EN 13411-6:2004. It supersedes BS 7166:1989 which is withdrawn.
The UK participation in its preparation was entrusted to Technical Committee
MHE/2, Wire ropes, which has the responsibility to:
— aid enquirers to understand the
4、 text;
— present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed;
— monitor related international and European developments and promulgate them in the UK.
A list of organizations represented
5、 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 Catalogue under the section entitled “International Standards Correspondence Index”, or
6、 by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online.
This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.
Compliance with a British Standard does not of itself conf
7、er immunity from legal obligations.
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This British Standard, was published under the authority of the Standards Policy and Strategy Comm
8、ittee on
7 July 2004
? BSI 7 July 2004
ISBN 0 580 44022 2
Summary of pages
This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 23 and a back cover.
The BSI copyright notice displayed in this document indicates when the do
9、cument was last issued.
Amd. No.
Date
Comments
Amendments issued since publication
EUROPEAN STANDARD NORME EUROPéENNE
EUROP?ISCHE NORM
EN 13411-6
June 2004
ICS 53.020.30; 77.140.99
English version
Terminations for steel wire ropes
10、 - Safety - Part 6: Asymmetric wedge socket
Terminaisons pour cables en acier - Sécurité - Partie 6: Bo?te à coin asymétrique
Endverbindungen für Drahtseile aus Stahldraht - Sicherheit
- Teil 6: Asymmetrische Seilschl?sser
This European Standard was approved by CEN on 24 March 2004.
11、
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
12、on application to the Central Secretariat 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 Central Secret
13、ariat has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, P
14、ortugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION C O M I Té EUR O P éEN DE NOR M A L I S A TI ON EUR O P ? I S C H ES KOM I TEE F ü R NOR M UNG
Management Centre
15、: rue de Stassart, 36 B-1050 Brussels
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? 2004 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members.
Ref
16、. No. EN 13411-6:2004: E
EN 13411-6:2004 (E)
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Contents page
Foreword.........................................................................
17、............................................................................................. 3
Introduction ................................................................................................................................................................. 4
1 Scope .............
18、................................................................................................................................................. 5
2 Normative references ..............................................................................................................................
19、...... 5
3 Terms and definitions ................................................................................................................................... 5
4 List of significant hazards .................................................................................................
20、........................... 6
5 Safety requirements and/or measures .......................................................................................................... 7
6 Verification of safety requirements................................................................................
21、.............................. 9
7 Information for use ...................................................................................................................................... 12
Annex A (informative) Asymmetric wedge socket with cast socket body – Design 1 .....................
22、.................. 13
Annex B (informative) Asymmetric wedge socket with cast socket body – Design 2 ....................................... 16
Annex C (informative) Recommendations for safe use and inspection .............................................................. 19
Annex ZA (info
23、rmative) Relationship of this document with EC Directives........................................................ 22
Bibliography .............................................................................................................................................................. 23
1
24、3
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Foreword
This document (EN 13411-6:2004) has been prepared by Technical Committee CEN/TC 168 “Chains, ropes, webbing, slings and accessories
25、- Safety”, the secretariat of which 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 December 2004, and conflicting national standards shall be withdrawn at the latest by Decembe
26、r 2004.
This document has been prepared under a mandate given to CEN by the European Commission and the European
Free Trade Association, and supports essential requirements of EC Directive(s).
For relationship with EC Directive(s), see informative annex ZA, which is an integral part of this d
27、ocument. Annexes A, B and C are informative.
This document includes a Bibliography.
EN 13411 with the general title Terminations for steel wire ropes – Safety, consists of the following parts: Part 1: Thimbles for steel wire rope slings
Part 2: Splicing of eyes for wire rope slings
Part 3: F
28、errules and ferrule-securing Part 4: Metal and resin socketing Part 5: U-bolt wire rope grips
Part 6: Asymmeteric wedge socket
Part 7: Symmetric wedge socket
This is the first edition of this Part of this European Standard.
According to the CEN/CENELEC Internal Regulations, the national
29、standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portuga
30、l, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
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Introduction
This European Standard is a Type C Standard as stated in EN 1070
31、.
This European Standard has been prepared to provide a means of conforming with the essential requirements of the Machinery Directive and associated EFTA regulations.
Purchasers ordering to this standard are advised to specify in their purchasing contract that the supplier operates an indepen
32、dently verified quality assurance system to ensure themselves that products claimed to comply consistently achieve the required level of quality.
The wedge sockets concerned and the extent to which hazards, hazardous situations and events are covered are indicated in the scope of this document.
33、
When provisions of this Type C standard are different from those which are stated in Type A or B standards, the provisions of this Type C standard take precedence over the provisions of the other standards, for asymmetric wedge sockets that have been designed and produced according to the provisio
34、ns of this Type C standard.
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1 Scope
This European Standard specifies the minimum requirements, for asymmetrical wedge socket terminations for stranded
35、steel wire ropes.
Examples of the construction and sizes of two separate designs of asymmetric wedge sockets are given in informative annexes A and B.
The informative annex C gives recommendations for safe use and inspection.
This European Standard deals with all significant hazards, hazard
36、ous situations and events relevant to asymmetric wedge sockets for terminations for steel wire ropes, when used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer.
This standard applies to terminations of steel wire ropes with asymmetrical wedge socket
37、s which are manufactured after the date of its publication.
This standard does not cover rope fatigue.
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 refere
38、nces, the latest edition of the referenced document (including any amendments) applies.
EN 1050:1996, Safety of machinery – Principles for risk assessment.
EN 1369: 1996, Founding - Magnetic particle inspection.
EN 1371-1:1997, Founding – Liquid penetrant inspection – Part 1: Sand, gravity
39、die and low pressure die castings.
EN 10045-1, Metallic materials - Charpy impact test – Part 1: Test method.
EN 12385-2:2002, Steel wire ropes - Safety - Part 2: Definitions, designation and classification.
EN 45012, General requirements for bodies operating assessment and certification/re
40、gistration of quality systems
(ISO/IEC Guide 62:1996).
EN ISO 7500-1, Metallic materials - Verification of static uniaxial testing machines - Part 1: Tension/compression testing machines (ISO 7500-1:1999).
EN ISO 12100-2:2003, Safety of machinery – Basic concepts, general principles for desi
41、gn – Part 2: Technical principles and specifications (ISO 12100-2:2003).
3 Terms and definitions
For the purposes of this European Standard, the terms and definitions given in EN 12385-2:2002 and the following apply.
3.1
asymmetric wedge socket
assembly consisting of a socket body,
42、wedge, and pin; when assembled the centre line of the pin is directly in line with the longitudinal axis of the live portion of the rope
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3.2
socket body
p
43、rincipal component of a wedge socket termination having an internal tapered form (see Figure 1) suitable for receiving a wedge (see 3.3) and the rope with which the wedge is associated
3.3 wedge
flat tapered component with peripheral groove, suitable for fitting into a tapered socket body to acc
44、ommodate a rope of matching nominal diameter, see Figure 1
3.4 pin
removable component intended to facilitate connection of the socket body to its anchorage point
3.5 lot
number of asymmetric wedge sockets from which samples are selected for testing purposes which are of the same type and di
45、mension, each of their constituent components manufactured during the same production run from material of the same cast and subjected to the same heat treatment process
4 List of significant hazards
This standard contains all the significant hazards, hazardous situations and events, as far
46、as they have been dealt with in this standard, identified by risk assessment as significant for this type of steel wire rope termination which require action to eliminate or reduce the risk.
In particular hazards caused by accidental release of a load, or release of a load due to failure of an as
47、ymmetric wedge socket puts at risk, either directly or indirectly, the safety or health of those persons within the hazard zone.
Errors in the fitting of accessories can also lead to premature failure and this standard contains dimensional requirements to allow correct fit.
Table
48、 1 contains those hazards that require action to reduce risk identified by risk assessment as being specific and significant for asymmetric wedge sockets.
Table 1 — Hazards and associated requirements
Hazards identified in annex A of
EN 1050:1996
Relevant clause of annex A of
EN ISO 12100-2
49、:2003
Relevant clause/ subclause of
this Part of EN ....
1.1.5
Mechanical hazard due to
inadequacy of strength
1.3.1
4.1.2.3
4.1.2.4
4.2.4
4.3.2
5
5
5
7
7
1.3
Cutting or severing hazard
1.3.4
7
15
Errors of fitting
4.3.2
7
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5 Safety requirements and/or measures
5.1 Geometry of wedge and socket body
Asymmetric wedge socket termination’s for ropes shall conform to the following geometrical criteria (see Figure 1):
-The lo
51、ngitudinal axis of the live portion of the rope shall be perpendicular to the longitudinal axis of the pin.
-The difference between the wedge angle (a) and the socket angle (b) shall be not greater than 2°.
-The internal side surfaces of the socket body and the wedge in contact with the rope s
52、hall be straight.
-The clamping length between socket body and the wedge in contact with the live portion of the rope shall be a minimum length (P) equal to 4,3 times the nominal rope diameter.
-The rope groove in the socket body and the wedge shall not exhibit protrusions, marks or casting jo
53、ints that would affect the intimate contact with the rope.
R
b 2
1
Key
1 Socket body
2 Wedge
Figure 1 – Functional dimensions (pin and securing means not shown)
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54、nk University, Sat Mar 18 06:55:25 GMT 2006, Uncontrolled Copy, (c) BSI
5.2 Security of the pin
The pin shall be provided with a means for securing it in position when in operation.
5.3 Mechanical properties
5.3.1 Termination and wedge security
When tested in accordance with 6.2
55、.2 the assembled and loaded termination, after initial settlement, shall during the noted two minute period exhibit no further movement between the rope and the termination, monitored either as movement of the tail of the rope, or as relative movement between the rope and the wedge.
After release
56、 of the specified load when tested in accordance with 6.2.2 no relative movement shall occur between the wedge and socket body.
5.3.2 Manufacturing proof force and deformation test
When tested in accordance with 6.2.3 and 6.3.1, the socket body arms and pin shall show no sign of permanent defo
57、rmation.
5.3.3 Fatigue behaviour of the socket body and pin
When tested in accordance with 6.2.4 the socket body and pin shall not exhibit any indications of cracks after
75000 load cycles.
The socket shall also exhibit no sign of local permanent deformation in the pin eye holes.
5.3.4
58、Termination efficiency
When tested in accordance with 6.2.5 the efficiency of the assembled termination shall be at least 80% of the minimum breaking force of the rope.
5.3.5 Low temperature properties
The materials of the socket, body and pin when tested in accordance with 6.2.6 shall poss
59、es minimum low temperature ductility and toughness qualities at –20°C as follows:
? Steel socket body and/or pin:
Minimum average Charpy impact value of 27 J, with no individual value less than 18 J.
? Spheroidal graphite cast iron and any other cast irons: socket body:
Minimum average
60、 Charpy impact value of 12 J, with no individual value less than 9 J.
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6 Verification of safety requirements
6.1 Qualifications of personnel
All test
61、ing and examination shall be carried out by a competent person.
6.2 Type testing
6.2.1 General
Two type tests shall be carried out for each requirement, in accordance with 6.2.2 to 6.2.5, on assembled terminations of each design, material and method of manufacture, using the highest minimum
62、 breaking force of rope for which the socket is designed.
If the four requirements tests are carried out using the same socket body, wedge and pin, they shall be conducted
in the order of termination and wedge security, deformation, fatigue and tensile efficiency testing, renewing the rope as ne
63、cessary.
The testing machine shall conform to the requirements of EN ISO 7500-1.
If the dimensional criteria or the chemical composition, or heat treatment of the socket body and pin are subsequently varied outside the usual manufacturing tolerances, the type tests shall be repeated.
6.2.2
64、Termination and wedge security test
Subject the assembled termination to a load of 20% of the minimum breaking force of the rope, sustain this load for an initial period to allow settlement of the termination, then continue to sustain for a further 2 min before removing the load.
6.2.3 Deforma
65、tion test
The termination shall be further loaded until this load reaches a value equal to 40% of the minimum breaking force of the rope. The load shall then be removed, the termination dismantled and the socket body and pin examined for permanent deformation.
6.2.4 Fatigue test
The test sh
66、all be carried out on an in-line tensile fatigue machine. The termination shall be prevented from rotating and the test shall consist of the application of the cycle force from 15% to 30% of the minimum breaking force of the rope along the rope axis for 75000 cycles.
The frequency of the force shall not exceed 5 Hz.
The component parts shall be submitted to either dye penetrant or magnetic particle inspection in accordance with EN 1369 or EN 1371-1 both before and after the fatigue test to
【BS英國標(biāo)準(zhǔn)】BS EN 1341162004 鋼絲繩終端設(shè)備 安全性 第6部分：不對稱楔形座U形夾
