1、raising standards worldwide NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BSI Standards Publication BS ISO 6489-5:2011 Agricultural vehicles Mechanical connections between towed and towing vehicles Part 5: Specifications for non-swivel clevis couplingsBS ISO 6489-5:2011 BRIT
2、ISH STANDARD National foreword This British Standard is the UK implementation of ISO 6489-5:2011. The UK participation in its preparation was entrusted to Technical Committee AGE/6, Agricultural tractors and forestry machinery. A list of organizations represented on this committee can be obtained on
3、 request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. BSI 2011 ISBN 978 0 580 66539 4 ICS 65.060.10 Compliance with a British Standard cannot confer immunity from legal obligations. This
4、British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2011. Amendments issued since publication Date Text affectedBS ISO 6489-5:2011Reference number ISO 6489-5:2011(E) ISO 2011INTERNATIONAL STANDARD ISO 6489-5 First edition 2011-07-15 Agricultur
5、al vehicles Mechanical connections between towed and towing vehicles Part 5: Specifications for non-swivel clevis couplings Vhicules agricoles Liaisons mcaniques entre vhicules remorqueurs et vhicules remorqus Partie 5: Spcifications pour attelages de type chape non rotatifs BS ISO 6489-5:2011 ISO 6
6、489-5:2011(E) COPYRIGHT PROTECTED DOCUMENT ISO 2011 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at
7、 the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2011 All rights reservedBS ISO 6489-5:2011 ISO 6489-5:20
8、11(E) ISO 2011 All rights reserved iiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body
9、 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 with ISO, also take part in the work. ISO collaborates closely with the International Electrotec
10、hnical 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 technical committees is to prepare International Standards. Draft International Standards adopted by
11、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 the possibility that some of the elements of this document may be the subject of patent righ
12、ts. ISO shall not be held responsible for identifying any or all such patent rights. ISO 6489-5 was prepared by Technical Committee ISO/TC 23, Tractors and machinery for agriculture and forestry, Subcommittee SC 4, Tractors. ISO 6489 consists of the following parts, under the general title Agricultu
13、ral vehicles Mechanical connections between towed and towing vehicles: Part 1: Dimensions of hitch-hooks Part 2: Specifications for clevis coupling 40 Part 3: Tractor drawbar Part 4: Dimensions of piton-type coupling Part 5: Specifications for non-swivel clevis couplings BS ISO 6489-5:2011BS ISO 648
14、9-5:2011 INTERNATIONAL STANDARD ISO 6489-5:2011(E) ISO 2011 All rights reserved 1Agricultural vehicles Mechanical connections between towed and towing vehicles Part 5: Specifications for non-swivel clevis couplings 1 Scope This part of ISO 6489 specifies the requirements for non-swivel clevis coupli
15、ngs used for the attachment of agricultural trailers and implements equipped with a swivel hitch ring as specified in ISO 5692-3 to the rear of self-propelled agricultural vehicles. 2 Normative references The following referenced documents are indispensable for the application of this document. For
16、dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 286-1:1988, ISO system of limits and fits Part 1: Bases of tolerances, deviations and fits ISO 2768-1:1989, General tolerances Part 1: Toler
17、ances for linear and angular dimensions without individual tolerance indications ISO 5692-3:2011, Agricultural vehicles Mechanical connections on towed vehicles Part 3: Swivel hitch rings 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 non-sw
18、ivel clevis coupling hitching device, not rotating around the horizontal longitudinal axis (roll), for the mechanical connection of trailers and implements 3.2 coupling reference centre point along the pin centreline crossing the horizontal symmetry centreline of the drawbar housing 3.3 D value D ma
19、thematically established representative force for the horizontal component of the force acting on the coupling in the longitudinal axis of the machine NOTE It is expressed in kilonewtons (kN). BS ISO 6489-5:2011 ISO 6489-5:2011(E) 2 ISO 2011 All rights reserved3.4 vertical load on the coupling point
20、 S load transmitted, under static conditions, on the reference centre of the mechanical coupling NOTE It is expressed in kilograms (kg). 4 Constructional requirements Constructional requirements not given in this part of ISO 6489 shall be specified as appropriate. Tolerances on dimensions without in
21、dividual tolerance indications shall be in accordance with ISO 2768-1:1989, tolerance class c. Limits and fits shall be in accordance with ISO 286-1. The dimensions of trailer or implement couplings of shapes w, x, y and z shall be in accordance with Figure 1 and Table 1. 5 Calculation of D value Th
22、e D value shall be calculated, in kilonewtons, using the following equation, where the values of m rand m tare known: tr tr mm Dg mm = + where g is the acceleration due to gravity, 9,81 m/s 2 ; m ris the allowable mass of the trailer or towed implement, in tonnes; m tis the allowable total mass of t
23、he tractor or towing vehicle, in tonnes. NOTE Dimensions are given in Table 1. Figure 1 Non-swivel clevis coupling BS ISO 6489-5:2011 ISO 6489-5:2011(E) ISO 2011 All rights reserved 3Table 1 Shapes and dimensions of trailer or implement clevis couplings Dimension mm Vertical load S kg D valueD kN Sh
24、ape D 0,5 a min. b min. 1 000 35 w 18 50 40 2 000 90 x 28 70 55 3 000 120 y 43 100 80 3 000 120 z 50 110 95 6 Design requirements 6.1 The coupling unit shape shall allow the swivel hitch ring the following minimum angles: 60 in the horizontal plane (yaw), 20 in the vertical plane (pitch), 20 around
25、its longitudinal axis (roll). 6.2 Where a sub-frame is used between the agricultural tractor or towing vehicle and the coupling, this shall be tested with the appropriate coupling, according to the maximum coupling capacity. 6.3 The non-swivel clevis coupling unit shall be provided with a device to
26、prevent unintentional uncoupling. This device shall be easy to apply, retained on the hitch unit, and tested by the application of a static load of 0,25 D. 6.4 The clevis shall be designed for the D values specified in Table 1. 7 Location 7.1 Horizontal location The non-swivel clevis coupling shall
27、be located as shown in Figure 2, mounted in the plane of the tractors or towing vehicles longitudinal axis. The centre of the non-swivel clevis coupling shall be located at the distance, t, rearwards from the end of the power take-off (PTO) shaft, in accordance with Table 2. BS ISO 6489-5:2011 ISO 6
28、489-5:2011(E) 4 ISO 2011 All rights reservedFigure 2 Non-swivel clevis coupling Relation to power take-off (PTO) Table 2 Distances between non-swivel coupling and power take-off (PTO) t 10 mm Coupling type PTO types 1 and 2 PTO type 3 w 80400 65500 x 100400 85500 y 120400 105500 z 130400 115500 7.2
29、Vertical location The height above the ground of the coupling device shall be in accordance with one of the following relationships (see Figure 3): BS ISO 6489-5:2011 ISO 6489-5:2011(E) ISO 2011 All rights reserved 5() () at 1 t 0,2 0,8 0,8 + mml S c h mS or () () 1a 1t 2 1t 0,2 0,8 0,8 + mml S c h
30、mS where m tis the mass of the tractor or towing vehicle, in kg; m 1tis the mass of the tractor or towing vehicle with the ballast weight on the front axle, in kg; m ais the load on the front axle of the unladen tractor or towing vehicle, in kg; m 1ais the load on the front axle of the tractor or to
31、wing vehicle with the ballast weight on the front axle, in kg; l is the tractor or towing vehicle wheelbase, in mm; S is the vertical load on the coupling point, in kg; c is the distance, in mm, between the reference centre of the mechanical coupling and the vertical plane passing through the axle o
32、f the rear wheels of the tractor or towing vehicle. NOTE m pis the load on the rear axle of the unladen tractor. Figure 3 Non-swivel clevis coupling Vertical location BS ISO 6489-5:2011 ISO 6489-5:2011(E) 6 ISO 2011 All rights reserved8 Permissible mechanical connections between rings and couplings
33、See Table 3. Table 3 Permissible mechanical connections between rings and couplings Coupling Ring ISO 6489-5 Shape w ISO 5692-3 Shape W ISO 6489-5 Shape x ISO 5692-3 Shape X ISO 6489-5 Shape y ISO 5692-3 Shape Y ISO 6489-5 Shape z ISO 5692-3 Shape Z 9 Marking The non-swivel clevis coupling shall hav
34、e a permanent and visible coupling shape letter marking for identification. BS ISO 6489-5:2011 ISO 6489-5:2011(E) ISO 2011 All rights reserved 7Annex A (informative) Recommended mechanical connection combinations between towing and towed vehicles Towing vehicle Towed vehicle ISO 6489-1:1991, hook ty
35、pe ISO 5692:1979/ISO 5692-1:2004, hitch ring (50 mm hole centre, 30 mm ring diameter) ISO 5692:1979/ISO 5692-1:2004, hitch ring (50 mm hole centre, 30 mm ring diameter) ISO 6489-1:2001, hook type aISO 20019:2001, hitch ring (50 mm hole centre, 30 to 41 mm ring diameter) ISO 5692-2:2002, coupling rin
36、g (40 mm socket) ISO 8755:1986, 40 mm drawbar coupling bISO 6489-2:2002, bolt type ISO 1102:1986, 50 mm drawbar coupling bISO 6489-4:2004, piton type ISO 5692:1979/ISO 5692-1:2004, hitch ring (50 mm hole centre, 30 mm ring diameter) ISO 6489-5:2011, non-swivel clevis coupling ISO 5692-3:2011, swivel
37、 hitch rings ISO 24347:2005, ball type ISO 24347 (80 mm ball diameter) Only these combinations are recommended. a Connecting an ISO 6489-1:2001 hook, manufactured in accordance with the maximum sizes permitted, to hitch rings in accordance with ISO 5692-1 and of minimum dimensions (30 mm ring diamet
38、er) according to ISO 20019 could result in a “jerky” connection between the tractor or towing vehicle and the trailer or implement, and less driving comfort. b Primarily used on trailers towed behind trucks (on-road). BS ISO 6489-5:2011 ISO 6489-5:2011(E) 8 ISO 2011 All rights reservedBibliography 1
39、 ISO 1102:1986, Commercial road vehicles Mechanical connections between towing vehicles and trailers 50 mm drawbar couplings 2 ISO 5692:1979, Agricultural vehicles Mechanical connections on towed vehicles Hitch-rings Specifications 3 ISO 5692-1:2004, Agricultural vehicles Mechanical connections on t
40、owed vehicles Part 1: Dimensions for hitch rings of 50/30 mm cross section 4 ISO 5692-2:2002, Agricultural vehicles Mechanical connections on towed vehicles Part 2: Coupling ring 40 with socket 5 ISO 6489-1:1991, Agricultural vehicles Mechanical connections on towing vehicles Part 1: Hook type 6 ISO
41、 6489-1:2001, Agricultural vehicles Mechanical connections between towed and towing vehicles Part 1: Dimensions of hitch-hooks 7 ISO 6489-2:2002, Agricultural vehicles Mechanical connections between towed and towing vehicles Part 2: Specifications for clevis coupling 40 8 ISO 8755:1986, Commercial r
42、oad vehicles Mechanical connections between towing vehicles and trailers 40 mm drawbar coupling 9 ISO 20019:2001, Agricultural vehicles Mechanical connections on towed vehicles Dimensions for hitch rings 10 ISO 24347:2005, Agricultural vehicles Mechanical connections between towed and towing vehicle
43、s Dimensions of ball-type coupling device (80 mm) BS ISO 6489-5:2011BS ISO 6489-5:2011 ISO 6489-5:2011(E) ICS 65.060.10 Price based on 8 pages ISO 2011 All rights reserved This page deliberately left blankBSI is the independent national body responsible for preparing British Standards and other stan
44、dards-related publications, information and services. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. British Standards Institution (BSI) raising standards worldwide BSI Group Headquarters 389 Chiswick High Road London W4 4AL UK Tel
45、 +44 (0)20 8996 9001 Fax +44 (0)20 8996 7001 British Standards are updated by amendment or revision. Users of British Stan- dards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and serv- ices. We would be gr
46、ateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical com- mittee responsible, the identity of which can be found on the inside front cover. Tel: +44 (0)20 8996 9001 Fax: +44 (0)20 8996 7001 BSI offers Members an individual
47、updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards. Tel: +44 (0)20 8996 7669 Fax: +44 (0)20 8996 7001 Email: Buying standards You may buy PDF and hard copy versions of standards directly using a credit card from the BSI Shop on the web
48、site In addition all orders for BSI, international and foreign standards publications can be addressed to BSI Customer Services. Tel: +44 (0)20 8996 9001 Fax: +44 (0)20 8996 7001 Email: In response to orders for international standards, it is BSI policy to supply 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 Knowledge Centre. Tel: +44 (0)20 8996 7004 Fax
