BS ISO 10245-4-2005 Cranes - Limiting and indicating devices - Jib cranes《起重机 限制器和指示器 动臂起重机》.pdf

1、BRITISH STANDARD BS ISO 10245-4:2004 Incorporating Technical Corrigendum No. 1 Cranes Limiting and indicating devices Part 4: Jib cranes ICS 53.020.20 BS ISO 10245-4:2004 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 3 October 2005 BSI 2006

2、 ISBN 0 580 46595 0 National foreword This British Standard reproduces verbatim ISO 10245-4:2004, including Technical Corrigendum May 2006 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee MHE/3, Cranes and derricks, which has

3、 the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may be found in the BSI Catalogue under the section entitled “Inte

4、rnational Standards Correspondence Index”, or 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 B

5、ritish Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and

6、 European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii to iv, pages 1 to 4, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the documen

7、t was last issued. Amendments issued since publication Amd. No. Date Comments 16663 Corrigendum No. 1 31 October 2006 Corrections to Clauses 2 and 4.1 Reference number ISO 10245-4:2004(E)INTERNATIONAL STANDARD ISO 10245-4 First edition 2004-11-01 Cranes Limiting and indicating devices Part 4: Jib cr

8、anes Appareils de levage charge suspendue Limiteurs et indicateurs Partie 4: Grues flche BS ISO 10245-4:2004ii BS ISO 10245-4:2004 iiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing In

9、ternational 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. International organizations, governmental and non-governmental, in liaison

10、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 the rules given in the ISO/IEC Directives, Part 2. The main task of techn

11、ical 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 by at least 75 % of the member bodies casting a vote. Attention is drawn

12、 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 10245-4 was prepared by Technical Committee ISO/TC 96, Cranes, Subcommittee SC 8, Jib cranes. ISO 10245 consists of

13、 the following parts, under the general title Cranes Limiting and indicating devices: Part 1: General Part 2: Mobile cranes Part 3: Tower cranes Part 4: Jib cranes Part 5: Overhead travelling and portal bridge cranes BS ISO 10245-4:2004 iv Introduction This International Standard establishes require

14、ments and gives guidance and design rules that reflect the present state of art in the field of crane machine design. The rules given represent good design practice that ensures fulfilment of essential safety requirements and adequate service life of components. Deviation from these rules normally l

15、eads to increased risks or reduction of service life, but it is acknowledged that new technical innovations, materials, etc. may enable new solutions that result in equal or improved safety and durability. 1Cranes Limiting and indicating devices Part 4: Jib cranes 1 Scope This part of ISO 10245 spec

16、ifies the requirements for devices which limit and/or indicate the loads, motions, performance and environment of jib-type cranes as defined in ISO 4306-1, other than offshore, tower, mobile and railway cranes, which are covered in the other parts of ISO 10245. The general requirements for limiting

17、and indicating devices for cranes are given in ISO 10245-1:1994. 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 referenced docume

18、nt (including any amendments) applies. ISO 4306-1:1990, Cranes Vocabulary Part 1: General ISO 8686-1:1989, Cranes Design principles for load and load combinations Part 1: General ISO 8686-4:2005, Cranes Design principles for loads and load combinations Part 4: Jib cranes ISO 10245-1:1994, Cranes Lim

19、iting and indicating devices Part 1: General 3 Terms and definitions For the purposes of this document, the definitions given in ISO 10245-1 apply. 4 Rated capacity limiters and indicators 4.1 General requirements for jib cranes Rated capacity limiters and indicators shall be provided on all cranes

20、having a rated capacity of 1 t or above, or an overturning moment of greater than 40 000 Nm due to the load. NOTE For rope or chain hoists for which the rated capacity does not vary with the position of the load, a rated capacity indicator is not required. BS ISO 10245-4:20042 4.2 Rated capacity lim

21、iters Performance and specific requirements 4.2.1 The rated capacity limiter shall meet the requirements of ISO 10245-1:1994, 4.1, and shall operate in accordance with the requirements stated in ISO 10245-1:1994, 4.2. 4.2.2 The rated capacity limiter, once actuated, shall continuously override the c

22、ontrols concerned until the overload has been removed and the relevant control lever has been returned to the neutral position. 4.2.3 It may be necessary to fit a system to the limiter to prevent it from sensing dynamic loads during operation. The rated capacity limiter should allow the rated load a

23、nd lifting devices to be accelerated upwards with the design mean acceleration. NOTE Normally, the limiter can be adjusted and set to the appropriate value during tests with the rated load. For serially manufactured hoisting winches, it might be adequate to set the rated capacity limiter during work

24、shop tests, taking into account provisions for the elasticity of the jib on which the winches are to be used. 4.2.4 The rated capacity limit setting, Q L , shall meet the limitations specified in Equation (1): L 2 GL 1 Q a gQ +uu(1) where a is the design mean acceleration for hoisting; g is the acce

25、leration due to gravity; Q GLis the gross load, comprising hoist medium, fixed load-lifting attachment and the rated load (with the rated load equalling the non-fixed load-lifting attachment plus the payload); 2is either the amplifying factor used in the proof-of-competence calculation for the crane

26、 in accordance with ISO 8686-1:1989, 6.1.2.2.1, or a factor chosen within the following limits: u 1,1 for indirect-acting capacity limiters, using sensors and which switch off the energy supply; u 1,6 for direct-acting capacity limiters, e.g. friction torque limiters, usually associated with power-d

27、riven chain hoists. 4.3 Rated capacity indicators Performance and specific requirements 4.3.1 The rated capacity indicator shall meet the requirements of ISO 10245-1:1994, 5.1. 4.3.2 The rated capacity indicator shall give a continuous visual and/or audible warning to the crane driver whenever the l

28、oad approaches the rated capacity. In general, the warning signal should be given when 90 % to 95 % of the rated capacity is reached. 4.3.3 Warnings for both the approach to rated capacity (in cases where it is required) and for exceeding the rated capacity shall be continuous. There shall be a clea

29、r difference between the warning for the approach and the warning for overload. Visual warnings should be one colour for the approach and another colour for overload. Audible warnings should be heard by those to be warned above the general background noise of the site operation. The warning sounds s

30、hould be clearly identifiable and not liable to confusion with other common sounds. BS ISO 10245-4:200435 Motion- and performance-limiting devices 5.1 Motion limiters 5.1.1 Motion limiters shall operate according to ISO 10245-1:1994, 6.1.10. In most cases, the motion- limiting device should be coupl

31、ed to the crane controls to prevent any further endangering movement. NOTE In the case of hydraulic systems, the extent of travel of operating cylinders or, alternatively, mechanical stops will meet this requirement, but it might be necessary to fit pressure-relief valves to prevent overloading part

32、s of the crane. 5.1.2 Any crane motion that has a restriction of movement in the design of the crane shall be provided with a motion limiter(s); see Table 1. Table 1 Selection of motion limiters Type of motion limiter Motion End stop Buffer Cut-out limit switch Slow-down device Back-up limit switch

33、Hoisting in general X aHoisting, high risk application Lowering Travelling V CT 0,63 m/s V CT W 0,63 m/s Traversing V CT 0,80 m/s V CT W 0,80 m/s Slew b Luff Telescoping Definition of symbols: = required; X = recommended; = at least one additional type of motion limiter recommended; = at least one a

34、dditional type of motion limiter required. For higher velocities and/or masses (kinetic energies), more than one additional type of motion limiter may be required. aA torque limiter may replace the motion limiter. bApply only when the slew angle is restricted and power driven. 5.1.3 Accelerations ap

35、plied to the structures due to the action of limiters shall be consistent with those used in the crane design. 5.2 Performance limiters Performance limiters, in accordance with ISO 10245-1:1994, 6.2, should be provided. BS ISO 10245-4:20044 6 Motion- and performance-indicating devices 6.1 Motion- an

36、d performance-indicating devices shall conform to ISO 10245-1:1994, Clause 7. 6.2 For those cranes where the rated capacity varies with radius, a radius indicator or boom-angle indicator shall be fitted. BS ISO 10245-4:2004blankBS ISO 10245-4:2004 BSI 389 Chiswick High Road London W4 4AL BSI British

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