1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58protective structures (ROPS) Dynamic test method and acceptance conditionsICS 65.060.10; 65.060.80T
2、ractors for agriculture and forestry Roll-over BRITISH STANDARDBS ISO 3463:2006BS ISO 3463:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 28 February 2007 BSI 2007ISBN 978 0 580 50293 4Amendments issued since publicationAmd. No. Date Com
3、mentscontract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations. National forewordThis British Standard was published by BSI. It is the UK implementation of ISO 3463:2006.The UK participation in its preparation was ent
4、rusted to Technical Committee AGE/6, Agricultural tractors and forestry machinery.A list of organizations represented on AGE/6 can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a Reference numberISO 3463:2006(E)INTERNATIONAL STAN
5、DARD ISO3463Fourth edition2006-11-15Tractors for agriculture and forestry Roll-over protective structures (ROPS) Dynamic test method and acceptance conditions Tracteurs agricoles et forestiers Structures de protection contre le retournement (ROPS) Mthode dessai dynamique et conditions dacceptation B
6、S ISO 3463:2006ii iiiContents Page Foreword iv Introduction v 1 Scope . 1 2 Normative references . 1 3 Terms and definitions. 1 4 Symbols and abbreviated terms . 3 5 Apparatus 3 5.1 Clearance zone framework 3 5.2 Impact test . 5 5.3 Crushing tests. 8 6 Preparation of tractor and ROPS for testing 10
7、6.1 General. 10 6.2 Impact test . 11 6.3 Crushing tests. 12 7 Test procedures 12 7.1 Sequence of tests . 12 7.2 Front and rear impacts. 13 7.3 Impact from either side 13 7.4 Crushing tests. 14 8 Seat index point 16 9 Clearance zone 17 10 Tolerances . 18 11 Acceptance conditions. 19 11.1 General. 19
8、11.2 Clearance zone 19 11.3 Cracks and tears. 19 11.4 Elastic deformation. 19 11.5 Cold weather embrittlement 19 12 Extension to other tractor models 20 13 Labelling 20 14 Test report . 20 Annex A (normative) Requirements for providing resistance to brittle fracture of ROPS at reduced operation temp
9、erature 21 Annex B (normative) Test report for roll-over protective structure 23 Bibliography . 30 BS ISO 3463:2006iv Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Stan
10、dards 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 with ISO, also t
11、ake 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 technical committees
12、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 to the possibil
13、ity 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 3463 was prepared by Technical Committee ISO/TC 23, Tractors and machinery for agriculture and forestry, Subcommittee SC 2, Common
14、tests. This fourth edition cancels and replaces the third edition (ISO 3463:1989), which has been technically revised. It also incorporates the Amendment ISO 3463:1989/Amd 1:1998. BS ISO 3463:2006vIntroduction Testing of roll-over protective structures (ROPS) for wheeled tractors for agriculture and
15、 forestry aims at minimizing the likelihood of driver injury resulting from accidental overturning during normal operation (e.g. field work) of the tractor. The strength of the ROPS is tested by applying dynamic impact loads and a static crushing test to simulate actual loads which can be imposed on
16、 the cab or frame when the tractor overturns either to the rear or to the side without free fall. The tests allow observations to be made on the strength of the structure and the attachment brackets to the tractor, and also of the tractor parts that could be affected by the load imposed on the struc
17、ture. Provision is made to cover both tractors with the conventional forward facing drivers position only, as well as those with a reversible drivers position, which is in agreement with the relevant OECD test code practice. For tractors with a reversible drivers position, a clearance zone is define
18、d to be the combined clearance zones for the two driving positions. The point of application of the side loading is determined as the mid-point between the seat index points measured in the two positions. It is recognized that there may be designs of tractors for example, lawn-mowers, narrow vineyar
19、d tractors, low profile tractors used in low buildings with limited overhead clearance, orchards, etc., stilt tractors and certain forestry machines such as forwarders for which this International Standard is not appropriate. NOTE For narrow-track wheeled tractors, see ISO 12003-15and ISO 12003-26.
20、BS ISO 3463:2006blank1Tractors for agriculture and forestry Roll-over protective structures (ROPS) Dynamic test method and acceptance conditions 1 Scope This International Standard specifies a dynamic test method and the acceptance conditions for roll-over protective structures (cab or frame) of whe
21、eled tractors for agriculture and forestry. It is applicable to tractors having at least two axles for wheels mounted with pneumatic tyres, or having tracks instead of wheels, with an unballasted tractor mass of not less than 600 kg, but generally less than 6 000 kg, and with a minimum track width o
22、f the rear wheels greater than 1 150 mm. 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 amendm
23、ents) applies. ISO 630, Structural steels Plates, wide flats, bars, sections and profiles ISO 5353:1995, Earth-moving machinery, and tractors and machinery for agriculture and forestry Seat index point ASTM A370, Standard Test Methods and Definitions for Mechanical Testing of Steel Products 3 Terms
24、and definitions For the purposes of this document, the following terms and definitions apply. 3.1 roll-over protective structure ROPS framework protecting drivers of agricultural and forestry tractors that minimizes the likelihood of driver injury resulting from accidental overturning during normal
25、operation NOTE The ROPS is characterized by the provision of space for a clearance zone, either inside the envelope of the structure or within a space bounded by a series of straight lines from the outer edges of the structure to any part of the tractor that might come into contact with flat ground
26、and that is capable of supporting the tractor in that position if the tractor overturns. BS ISO 3463:20062 3.2 tractor mass mass of the unladen tractor in working order with tanks and radiators full, roll-over protective structure with cladding, and any track equipment or additional front-wheel driv
27、e components required for normal use NOTE Not included are the operator, optional ballast weights, additional wheel equipment, special equipment and loads. 3.3 reference mass mtmass, not less than the tractor mass, selected by the manufacturer for calculation of the energy inputs to be used in the t
28、ests 3.4 impact test application of a dynamic load produced by a block acting as a pendulum 3.5 crushing test application of a vertical load through a beam placed laterally across the uppermost members of the roll-over protective structure. 3.6 longitudinal median plane longitudinal plane of symmetr
29、y zero Y plane vertical plane Y passing through the mid-points of AB, perpendicular to AB, A and B being such that for each wheel, the vertical plane passing through its axis cuts the mid-plane of the wheel following a straight line which meets the supporting surface of the vehicle at one point, and
30、 A and B are two points thus defined which correspond to two wheels, both of which are either steering or powered wheels, situated respectively at the two ends of the same real or imaginary axle See Figure 1. NOTE 1 The mid-plane of the dual wheels being equidistant from the inner edge of one wheel
31、and the outer edge of the other, the straight line is, in this particular case, the intersection of the mid-plane of the dual wheels and the vertical plane passing through the axis of the axle pin. NOTE 2 Adapted from ISO 612:19781, Clause 5. 3.7 reference plane vertical plane generally longitudinal
32、 to the tractor and passing through the seat index point and the steering-wheel centre. NOTE Normally, this plane coincides with the longitudinal median plane of the tractor. BS ISO 3463:20063Figure 1 Longitudinal median plane 4 Symbols and abbreviated terms For the purposes of this document, the sy
33、mbols given in Table 1 are used. Table 1 Symbols Symbol Description Unit ah Half of the horizontal seat adjustment mm av Half of the vertical seat adjustment mm EEnergy input to be absorbed during the test J F Static load force N HLift height of the pendulum block centre of gravity mm IMoment of ine
34、rtia about the rear axle excluding the rear wheels kgm2 L Tractor reference wheel base mm mtReference mass kg 5 Apparatus 5.1 Clearance zone framework Means to prove that the clearance zone has not been entered during the test: a measuring rig in accordance with Figure 2 and Figure 11 a) and b) can
35、be used. BS ISO 3463:20064 Key 1 seat index point (SIP) Dimensions mm Remarks A1A0B1B0100 Minimum A1A2B1B2C1C2500 D1D2E1E2500 Minimum or equal to the steering-wheel radius plus 40 mm, whichever is greater F1F2G1G2H1H2I1I2J1J2500 E1E0E2E0250 Minimum or equal to the steering-wheel radius plus 40 mm, w
36、hichever is greater J0E0300 F0G0- I0G0- C0D0- E0F0- Depending on the tractor NOTE For other dimensions, see Figure 11 a) and b). Figure 2 Clearance zone measuring rig BS ISO 3463:200655.2 Impact test The impact test shall be carried out by means of the elements described in 5.2.1 to 5.2.5. 5.2.1 Dev
37、ice for striking blow against ROPS A pendulum block of mass of 2 000 kg. The pendulum block mass does not include the mass of the chains. The maximum chain mass shall be 100 kg. The dimensions of the block, which shall be suspended from two chains from pivot points 6 m or more above ground level, sh
38、all be as shown in Figure 3. The pendulum block centre of gravity shall coincide with its geometric centre. Dimensions in millimetres Key 1 attachment for release mechanism 2 height adjustment 3 impact face 4 hooks to hold spare chain 5 centre of gravity axis 6 pendulum chains Figure 3 Illustration
39、of pendulum block 5.2.2 Means to lash the tractor to the ground The tractor shall be lashed, by means of steel wire ropes incorporating tensioning devices, to ground rails preferably spaced approximately 600 mm apart throughout the area immediately below the pivot points and extending for approximat
40、ely 9 m along the pendulum block axis and approximately 1 800 mm to either side. The points of attachment of the lashings shall be approximately 2 000 mm behind the rear axle and 1 500 mm in front of the front axle. There shall be two lashings on each axle: one on each side of the median plane of th
41、e tractor. The lashings shall be steel cable of from 12,5 to 15 mm diameter, with tensile strength of from 1 100 MPa to 1 260 MPa. Details of the means are given in Figures 4, 5 and 6. BS ISO 3463:20066 5.2.3 Softwood beam Softwood beam, of cross-section 150 mm 150 mm, used to restrain the rear whee
42、ls when striking from the front and rear, and to clamp against the side of the front and rear wheels when striking from the side, as shown in Figures 4, 5 and 6. Dimensions in millimetres Key 1 positioning tie 2 150 mm square softwood beam clamped behind both rear wheels after anchoring 3 travel arc
43、 of pendulum block centre of gravity passing through contact point Figure 4 Example of lashing method Rear impact BS ISO 3463:20067Dimensions in millimetres Key 1 positioning tie 2 150 mm square softwood beam clamped behind both rear wheels after anchoring 3 travel arc of pendulum block centre of gr
44、avity passing through contact point Figure 5 Example of lashing method Front impact BS ISO 3463:20068 Key 1 travel arc of pendulum block centre of gravity passing through contact point 2 lashing (see 6.2.3) 3 150 mm square softwood beam 4 wooden prop aChamfered. bRounded to secure contact against ri
45、m. Figure 6 Example of lashing method Side impact 5.2.4 Wooden prop Wooden prop, used to restrain the opposite rear wheel when striking from the side as shown in Figure 6. Its length shall be 20 to 25 times its thickness and its width 2 to 3 times its thickness. 5.2.5 Device for measuring elastic de
46、flection Device used to measure elastic deflection, such as that shown in Figure 7, in a horizontal plane that coincides with the upper limiting surface of the clearance zone. 5.3 Crushing tests The crushing tests shall be carried out by means of the elements described in 5.3.1 and 5.3.2. 5.3.1 Mean
47、s of applying downward force on the ROPS, such as that shown in Figure 8, including a stiff beam with a width of 250 mm. 5.3.2 Equipment for measuring the total vertical force applied. BS ISO 3463:20069Key 1 permanent deflection 2 elastic deflection 3 total (permanent plus elastic) deformation 4 fri
48、ction collar 5 horizontal rod attached to frame 6 vertical bar attached to tractor chassis Figure 7 Example of device for measuring elastic deflection BS ISO 3463:200610 Key 1 force 2 universal pin joints 3 hydraulic cylinder 4 supports under front and rear axles 5 crushing beam Figure 8 Example of
49、arrangement for crushing test 6 Preparation of tractor and ROPS for testing 6.1 General 6.1.1 The roll-over protective structure shall be manufactured to production specifications and shall be fitted to the appropriate tractor model chassis in accordance with the manufacturers declared attachment method. 6.1.2 A track width setting for the rear wheels shall be chosen such that, as far as possible, the ROPS is not supported by tyres during the test. 6.1.3 Cross-ply tyres shou
