1、BRITISH STANDARD BS ISO 17900:2002 Agricultural trailers Balanced and semi-mounted trailers Determination of payload, vertical static load and axle load ICS 65.060.10 BS ISO 17900:2002 This British Standard, having been prepared under the direction of the Engineering Sector Policy and Strategy Commi
2、ttee, was published under the authority of the Standards Policy and Strategy Committee on 19 August 2002 BSI 19 August 2002 ISBN 0 580 40284 3 National foreword This British Standard reproduces verbatim ISO 17900:2002 and implements it as the UK national standard. The UK participation in its prepara
3、tion was entrusted to Technical Committee AGE/32, Agricultural implements and trailers, which has 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 publication
4、s referred to in this document may be found in the BSI Catalogue under the section entitled “International 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
5、 provisions of a contract. Users are responsible for its correct application. Compliance with a British 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 interpret
6、ation, or proposals for change, and keep the UK interests informed; monitor related international and 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 and iii, a blank page, pages 1 to 7,
7、and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsINTERNATIONAL STANDARD ISO 17900 First edition 2002-05-15 Reference number ISO 17900:2002(E) Agricultural trailers Balanced and s
8、emi- mounted trailers Determination of payload, vertical static load and axle load Remorques agricoles Remorques avant-train et semi-remorques Dtermination de la charge utile, de la charge statique verticale et de la charge par essieuBSISO17900:2002ii ISO 2002 Ar llithgr seresvde FDP dicslaimre This
9、 FDP fam elitnoc yt deddebme niayfep.seca In roccatiw ecnadA hycilop gnisnecil sebod, thf sim eliarp eb ytnieiv ro dewb detu sllah ton eb tidesselnu de tt ehyfepseca hwich rae meil era deddebct desnetsni dna olat no delmoc ehtupre epfrromign tide ehti.gn In odaolnwding htis life, rapticca setpe treh
10、iet neh serilibisnopty fo ton fnirisebodA gnign ilop gnisnecilcy. TI ehSO tneCrceS larteraita catpecon s illibayti in ihts aera. ebodA si t armedarak fo dAS ebotsysme Inroctarop.de teDailfo s tfos ehtware prtcudos t desuo crtaet ehFDP si ff eb nac elit ni dnuoG ehlarene Info talerive to tf eh;eli te
11、h PDF-rctaeirap nomateers weer tpof dezimior rptnii.gn vErec yaeeb sah ert nakt neo rusnet etah tf ehi elis tiusbaf elob esu ry ISO merebm seidob. In the kilnuley evtne ttah a borpmel talerign to ti f si,dnuo saelpfni erom teh tneCS larterceratai ta thserdda es igvne olebw. ISO 2002 Ar llieser sthgr
12、vsselnU .de torehceps esiwfi,dei rap ont iht fos bupliactim noarper eb yro decudo tuzilina ni dey from b roy nasnaem y, tcelernahcem ro cinoicla, inclidung tohppocoying m dnaicrfomli, tiwtuoh permini noiss wrtif gnirmo ietI rehSO ta tserdda eheb slow or SIsO memreb ydob in toc ehtnury fo tr ehtseuqe
13、er. ISO copyrithg fofiec tsop esaCela 65 G 1121-HCeneva 02 T.le + 22 14 10 947 11 Fxa + 14 47 2290 9 74 E-liam cpoyrigthsio.ch Web wwwsi.oc.h BSISO17900:2002ISO 09712002:0)E( ISO 2002 r llAithgs reservde iii Foreword ISO (the International Organization for Standardization) is a worldwide federation
14、of 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. I
15、nternational 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
16、 the rules given in the ISO/IEC Directives, Part 3. 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 to
17、 the possibility that some of the elements of this International Standard may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. International Standard ISO 17900 was prepared by Technical Committee ISO/TC 23, Tractors and machinery for a
18、griculture and forestry, Subcommittee SC 4, Tr a c t o r s. BSISO17900:2002ANRETNIITOTS LANDNADRA ISO 09712002:0)E( ISO 2002 r llAithgs reservde 1 Agricultural trailers Balanced and semi-mounted trailers Determination of payload, vertical static load and axle load 1 Scope This International Standard
19、 specifies a method for determining the payloads, vertical static drawbar loads and axle loads of agricultural semi-mounted and balanced trailers by means of weighing the empty trailer and then calculating the requirements. 2 Terms and definitions For the purposes of this International Standard, the
20、 following terms and definitions apply. 2.1 semi-mounted trailer towed vehicle with one axle or axle group of landwheels and a drawbar towing device (drawbar) that cannot move relative to the vehicle, allowing the transmission of vertical forces from the towed vehicle through the drawbar to the towi
21、ng vehicle NOTE 1 Some slight vertical movement may occur at a rigid drawbar (e.g. due to suspension movements). NOTE 2 A hydraulically adjustable articulated drawbar is considered to be a rigid drawbar. 2.2 balanced trailer towed vehicle with at least two landwheel axles at least one of which is st
22、eerable, and a drawbar towing device that allows vertical movement so that vertical forces cannot be transferred to the towing vehicle 2.3 axle load that part of the mass of the trailer and any payload carried by a particular ground wheel axle of the trailer or, in the case of multiple axles, the co
23、mbined axle load NOTE The maximum permissible axle load is specified by the manufacturer. 2.4 vertical static load vertical load resulting from the loads produced by the mass of a semi-mounted trailer exerted at the centre of the drawbar coupling point under static conditions NOTE The maximum permis
24、sible vertical static load is specified by the manufacturer. 2.5 maximum mass technically maximum possible trailer mass and allowable payload specified by the manufacturer NOTE This mass corresponds to the sum of the technically maximum possible axle loads and, in the case of a semi-mounted trailer,
25、 the vertical static load. m a m s m max BSISO17900:2002ISO :00971(2002)E 2 ISO 2002 Ar llithgr seresvde 2.6 empty mass sum of the axle loads and, in the case of a semi-mounted trailer, the vertical static load, with the trailer empty but ready for operation 2.7 payload difference between maximum ma
26、ss, , and empty mass, : (1) 2.8 support load vertical load acting through the centre of the rigid drawbar support at the ground surface resulting from the mass of the trailer, with the trailer load platform in the horizontal and static position NOTE For drawbar jacks, see ISO 12140. 2.9 semi-mounted
27、 trailer wheel space horizontal distance between centre of the coupling point and the landwheel axle centre or, in the case of multiple axles, the point at which the combined axle loads act NOTE See Figures 1 and 2. 2.10 balanced trailer wheel space horizontal distance between the landwheel front- a
28、nd rear-axle centres or, in the case of multiple axles, the point at which the combined axle loads act NOTE See Figure 3. 2.11 supporting distance for a semi-mounted trailer, distance between the vertical centre line of the support device at the ground surface and the landwheel axle centre or, in th
29、e case of multiple axles, the point at which the combined axle loads act 2.12 load platform length inner span of the load platform in the operating direction of the vehicle 2.13 drawbar length horizontal distance from the centre of the coupling point to the inside front edge of the load platform of
30、a semi-mounted trailer m empty m p m max m empty m p = m max m empty m b s s s b d s l p l d BSISO17900:2002ISO 09712002:0)E( ISO 2002 r llAithgs reservde 3 Key 1 2 Figure 1 Semi-mounted trailer Key 1 2 Figure 2 Semi-mounted trailer with multiple axle Key 1 2 3 4 Figure 3 Balanced trailer m a, empty
31、 m b, empty m a, empty m b, empty m a, front, empty m a, rear, empty m a, front m a, rear BSISO17900:2002ISO :00971(2002)E 4 ISO 2002 Ar llithgr seresvde 3 Determination of masses, loads and dimensions 3.1 General For all measurements, the trailer shall be adjusted so that the load platform is horiz
32、ontal to within . All weightings, load measurements and measurements of dimensions shall be determined with an accuracy of . 3.2 Empty mass, The trailer empty mass shall be determined and recorded using a suitably sized and accurate weighbridge, or using load pad scales, or using both. 3.3 Empty loa
33、ds 3.3.1 Empty axle load, This axle load shall be determined by measuring and summing the individual wheel loads of an empty trailer using load pad scales. 3.3.2 Empty support load, This support load shall be measured for empty semi-mounted trailers using load pad scales. 3.4 Dimensions The followin
34、g dimensions (see Figures 1 to 3), in metres, shall be measured and recorded: wheel space or ; load platform length ; supporting distance (only for semi-mounted trailers); drawbar length (only for semi-mounted trailers); auxiliary dimension , (only for balanced trailers, see Figure 3). 3.5 Vertical
35、static load for empty semi-mounted trailer The vertical static load for an empty semi-mounted trailer shall be calculated using the formula: (2) where is the empty trailer support load, in kilograms; , are the dimensions, in metres. 2 5% m empty m a, empty m b, empty s s s b l p d s l d l h m s, emp
36、ty = m b, empty d s s s m b, empty s s d s BSISO17900:2002ISO 09712002:0)E( ISO 2002 r llAithgs reservde 5 3.6 Maximum mass and payload The maximum mass of the load platform (i.e. payload ) shall be determined and is taken to act at . NOTE It is assumed that the mass on the load platform is evenly d
37、istributed and, in the case of a balanced trailer, that the landwheel axles are arranged symetrically about the span of the load platform. 3.7 Vertical static and axle loads for trailer laden to maximum mass 3.7.1 The vertical static load of a semi-mounted trailer laden to its maximum mass, , shall
38、be calculated using the formula: (3) where is the empty trailer support load, in kilograms; is the payload, in kilograms; , , , are the dimensions, in metres. 3.7.2 The axle load of a semi-mounted trailer laden to its maximum mass, , shall be calculated using the formula: (4) where is the empty trai
39、ler axle load, determined in accordance with 3.3.1, in kilograms; is the payload, in kilograms; , , are the dimensions, in metres. 3.7.3 The front-axle load of a balanced trailer laden to its maximum mass, , shall be calculated using the formula: (5) where is the front, empty axle load, determined i
40、n accordance with 3.3.1, in kilograms; is the payload, in kilograms; , are the dimensions, in metres; is the auxiliary dimension. m p l p /2 m s, laden m s, laden = m b, empty d s s s +m p 1 2l d +l p 2s s m b, empty m p s s d s l p l d m a, laden m a, laden = m a, empty +m p 2l d +l p 2s s m a, emp
41、ty m p s s l p l d m a, front, laden m a, front, laden = m a, front, empty +m p 2(s b +l h )l p 2s b m a, front, empty m p s b l p l h BSISO17900:2002ISO :00971(2002)E 6 ISO 2002 Ar llithgr seresvde 3.7.4 The rear axle load of a balanced trailer laden to its maximum mass, , shall be calculated using
42、 the formula: (6) where is the rear, empty axle load, determined in accordance with 3.3.1, in kilograms; is the payload, in kilograms; , are the dimensions, in metres; is the auxiliary dimension. m a, rear, laden m a, rear, laden = m a, rear, empty +m p l p 2l h 2s b m a, rear, empty m p s b l p l h
43、 BSISO17900:2002ISO 09712002:0)E( ISO 2002 r llAithgs reservde 7 Bibliography 1 ISO 12140:1998, Agricultural machinery Agricultural trailers and trailed equipment Drawbar jacks BSISO17900:2002BS ISO 17900:2002 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the inde
44、pendent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revision. Users of British Standards should make sure that th
45、ey possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the
46、identity of which can be found on the inside front cover. Tel: +44 (0)20 8996 9000. Fax: +44 (0)20 8996 7400. BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards. Buying standards Orders for all BSI, inte
47、rnational and foreign standards publications should be addressed to Customer Services. Tel: +44 (0)20 8996 9001. Fax: +44 (0)20 8996 7001. Email: ordersbsi-. Standards are also available from the BSI website at http:/www.bsi-. In response to orders for international standards, it is BSI policy to su
48、pply the BSI implementation of those that have been published as British Standards, unless otherwise requested. Information on standards BSI provides a wide range of information on national, European and international standards through its Library and its Technical Help to Exporters Service. Various
49、 BSI electronic information services are also available which give details on all its products and services. Contact the Information Centre. Tel: +44 (0)20 8996 7111. Fax: +44 (0)20 8996 7048. Email: infobsi-. Subscribing members of BSI are kept up to date with standards developments and receive substantial discounts on the purchase pric
