1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58towed and towing vehicles Dimensions of ball-type coupling device (80 mm)ICS 65.060.10Agricultural
2、vehicles Mechanical connections between BRITISH STANDARDBS ISO 24347:2005BS ISO 24347:2005This British Standard was published under the authority of the Standards Policy and Strategy Committee on 13 February 2006 BSI 13 February 2006ISBN 0 580 47785 1Cross-referencesThe British Standards which imple
3、ment international publications 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
4、 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 confer immunity from legal obligations.Summary of pagesThis document comprises a front cover, an inside front cover, the ISO title page, pa
5、ges ii to iv, pages 1 to 10, an inside back cover and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsA list of organizations represented on this committee can be obtained on request
6、 to its secretary. 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 European developments and promulgate them in the UK.National forewordThis British Standard re
7、produces verbatim ISO 24347:2005 and implements it as the UK national standard.The UK participation in its preparation was entrusted to Technical Committee AGE/6, Agricultural tractors and forestry machinery, which has the responsibility to: aid enquirers to understand the text;Reference numberISO 2
8、4347:2005(E)INTERNATIONAL STANDARD ISO24347First edition2005-11-01Agricultural vehicles Mechanical connections between towed and towing vehicles Dimensions of ball-type coupling device (80 mm) Vhicules agricoles Liaisons mcaniques entre vhicules remorqueurs et vhicules remorqus Dimensions des dispos
9、itifs dattelage de type boule (80 mm) BS ISO 24347:2005ii 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 commi
10、ttees. 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 with ISO, also take part in the work. ISO collaborates closely with the I
11、nternational 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 technical committees is to prepare International Standards. Draft Internationa
12、l 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 the possibility that some of the elements of this document may be the
13、 subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 24347 was prepared by Technical Committee ISO/TC 23, Tractors and machinery for agriculture and forestry, Subcommittee SC 4, Tractors. BS ISO 24347:2005iv Introduction The aim of this Inte
14、rnational Standard is to ensure the interchangeability of the mechanical connections on agricultural towing vehicles. BS ISO 24347:20051Agricultural vehicles Mechanical connections between towed and towing vehicles Dimensions of ball-type coupling device (80 mm) 1 Scope This International Standard s
15、pecifies the dimensions and location of a ball-type coupling device of 80 mm nominal diameter, whose male part fitted to an agricultural towing vehicle and female part fitted to a towed, non-balanced vehicle provides mechanical connection between the two vehicles, where the downwards vertical static
16、 load does not exceed 40 kN. 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 document (including any amendments) applie
17、s. ISO 500-1:2004, Agricultural tractors Rear-mounted power take-off types 1, 2 and 3 Part 1: General specifications, safety requirements, dimensions for master shield and clearance zone, corrected by ISO 500-1:2004/cor.1:2005 ISO 500-2:2004, Agricultural tractors Rear-mounted power take-off types 1
18、, 2 and 3 Part 2: Narrow-track tractors, dimensions for master shield and clearance zone ISO 5673-2:2005, Agricultural tractors and machinery Power take-off drive shafts and power-input connection Part 2: Specification for use of PTO drive shafts, and position and clearance of PTO drive line and PIC
19、 for various attachments 3 Dimensions and marking 3.1 Dimensions (see Figures 1 to 4) 3.1.1 The dimensions of the ball-type coupling device shall be in accordance with Figures 1 and 2. The keeper shall be contained within the maximum metal outline. 3.1.2 The minimum clearance zone for the keeper (se
20、e Figure 4) is defined by the required movement of the trailer shank according to 3.1.4 and the dimensioning of the shank as shown in Figure 2. It shall be considered in all rotational degrees of freedom. 3.1.3 The manufacturer of the ball-type coupling device is responsible for both the design and
21、the manufacturing quality of the ball-type coupling device such that unintentional uncoupling of the female part from the male part when subject to the maximum design load shall be prevented. The distance between the keeper and the ball centre shall be (65 1) mm (see Figure 3). 3.1.4 With the specif
22、ied ball-type trailer shank fixed to the tractor attachment, the shank shall be free to turn so that the angles formed with the horizontal situated in the tractors plane of symmetry and passing through the coupling point have the following minimum values. Angle of yaw: rotation around a vertical axi
23、s passing through the coupling point minimum value of 60 on both sides. BS ISO 24347:20052 Angle of pitch: rotation around a horizontal axis passing through the coupling point and perpendicular to the vehicles longitudinal plane of symmetry minimum value of 20, top and bottom. Allowance should be ma
24、de for the towing vehicle being up to 3 from the horizontal, due to the front or rear tyre sizes. Angle of roll: rotation around a horizontal axis passing through the coupling point and located in the vehicles plane of symmetry minimum value of 20, top and bottom. 3.1.5 The yaw requirement of 60, as
25、 shown in Figure 4, may be exceeded when smaller tyres and/or wide track settings are used on the towing vehicle. Decal(s) and the operators manual of the tractor should inform of this possibility, which could result in interference. 3.1.6 Examples of dimensions for the trailer shank are given in An
26、nex A. 3.2 Marking The ball-type coupling device shall be permanently marked “ISO 80”, with this marking located on the top or side of the trailer shank. The trailer mating connection shall be permanently and visibly marked with a size identification. 4 Location 4.1 The location of the ball-type cou
27、pling device shall be in accordance with Figure 5. 4.2 The ball-type coupling device shall be mounted in the plane of the tractor longitudinal axis. 4.3 The centre of the ball shall be located at the distance shown rearwards from the end of the power take-off (PTO) shaft in Figure 5, and as high as
28、possible without any part of the ball-type coupling or its construction, keeper-plate, etc. entering the clearance zone as specified in ISO 500-1 and ISO 500-2 for the PTO and in ISO 5673-2 for the PTO drive shaft. 4.4 Annex B presents the geometrical conditions to be considered generally. Dimension
29、s in millimetres Figure 1 Ball dimensions BS ISO 24347:20053Dimensions in millimetres aWithin area, 70 min. rotating around vertical centre line. bDimension of flange and/or welding versions (see Annex A) cForging draft permissible. Figure 2 Dimensions of ball-type trailer shank BS ISO 24347:20054 D
30、imensions in millimetres aKeeper shape optional. Figure 3 Vertical location of keeper BS ISO 24347:20055Dimensions in millimetres Figure 4 Minimum clearance zone for ball-type coupling device BS ISO 24347:20056 Dimensions in millimetres NOTE The range of horizontal location could interfere with the
31、PTO clearance zone (see Figure B.1) in some applications. Figure 5 Location of ball-type trailer shank in relation to PTO BS ISO 24347:20057Annex A (informative) Examples of trailer shank configurations and dimensions See Figures A.1 to A.4. Dimensions in millimetres Figure A.1 Example 1 BS ISO 2434
32、7:20058 Dimensions in millimetres Figure A.2 Example 2 BS ISO 24347:20059Dimensions in millimetres Figure A.3 Example 3 Dimensions in millimetres Figure A.4 Example 4 BS ISO 24347:200510 Annex B (informative) Clearance zones Figure B.1 shows the PTO, the coupling device and their clearance zones (se
33、e 4.3). Key 1 tractor PTO (ISO 500-1, ISO 500-2) 2 tractor master shield (ISO 500-1, ISO 500-2) 3 PTO clearance zone, (ISO 500-1, ISO 500-2) 4 ball-type coupling min. clearance zone (Figure 4) 5 location of ball-type coupling in relation to PTO (Figure 5) 6 ball-type trailer shank (Figure 2) 7 PTO d
34、rive shaft clearance zone (ISO 5673-2) 8 implement PIC (ISO 5673-2) Figure B.1 PTO and coupling device clearance zones BS ISO 24347:2005blankBS ISO BSI389 Chiswick High RoadLondonW4 4AL24347:2005BSI British Standards InstitutionBSI is the independent national body responsible for preparing British S
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