BS-3318-1978 ISO-5005-1977.pdf
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1、BRITISH STANDARD BS 3318:1978 ISO 5005:1977 Specification for Earth-moving machinery Method for locating the centre of gravity UDC 621.879:621.132:531.24 Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 06:10:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3318:1978 This British Standard, hav
2、ing been prepared under the direction of the Road Engineering Standards Committee, was published under the authority of the Executive Board on 31 May 1978 BSI 12-1999 First published January 1961 First revision May 1978 The following BSI references relate to the work on this standard: Committee refe
3、rence RDB/21 Draft for comment 76/11809 DC ISBN 0 580 10235 1 Cooperating organizations The Road Engineering Standards Committee, under whose direction this British Standard was prepared, consists of representatives from the following Government departments and scientific and industrial organization
4、s: Asphalt and Coated Macadam Association Association of Consulting Engineers British Quarrying and Slag Federation British Tar Industry Association Cement and Concrete Association Concrete Society Limited Contractors Plant Association* County Surveyors Society Department of the Environment (PSA) De
5、partment of the Environment, Transport and Road Research Laboratory Department of Transport* Federation of Civil Engineering Contractors* Federation of Manufacturers of Construction Equipment and Cranes* Greater London Council Institute of Petroleum Institute of Quarrying Institution of Civil Engine
6、ers* Institution of Highway Engineers* Institution of Municipal Engineers* Institution of Structural Engineers Ministry of Defence* Refined Bitumen Association Ltd. Road Emulsion Association Ltd. Road Surface Dressing Association Sand and Gravel Association Limited Society of Chemical Industry Twist
7、 Drill and Reamer Association The organizations marked with an asterisk in the above list, together with the following, were directly represented on the committee entrusted with the preparation of this British Standard: Agricultural Engineers Association Associated Offices Technical Committee Depart
8、ment of Industry, Mechanical Engineering Health and Safety Executive National Coal Board Trades Union Congress Amendments issued since publication Amd. No.Date of issueComments Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 06:10:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3318:1978 BSI
9、 12-1999i Contents Page Cooperating organizationsInside front cover National forewordii 0Introduction1 1Scope and field of application1 2Definitions1 3Preparation and loading of machine1 4Method of determination2 5Reference planes3 6Reporting of results3 Figure 1 Determination of the fore-and-aft co
10、-ordinate, 5 Figure 2 Determination of lateral co-ordinate in the horizontal plane, 6 Figure 3 Determination of vertical co-ordinate of the centre of gravity, 7 x y h Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 06:10:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3318:1978 ii BSI 12-199
11、9 National foreword This British Standard is a revision of the 1961 version of BS 3318 and has been prepared under the direction of the Road Engineering Standards Committee. It is identical with ISO 5005 “Earth-moving machinery Method for locating the centre of gravity”. ISO 5005 was produced as a r
12、esult of international discussions in which the United Kingdom took an active part. This revision of BS 3318 differs from the 1961 version in that it applies specifically to earth-moving machinery and it now supersedes that edition. Terminology and conventions. The text of the International Standard
13、 has been approved as suitable for publication, without deviation, as a British Standard. Some terminology and certain conventions are not identical with those used in British Standards; attention is especially drawn to the following. Wherever the words “International Standard” appear, referring to
14、this standard, they should be interpreted as “British Standard”. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity
15、from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 7 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the ins
16、ide front cover. Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 06:10:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3318:1978 BSI 12-19991 0 Introduction Although there are many possible methods of determining the centre of gravity, the intent of this International Standard is to specify
17、one simple and practical method which requires the use of a weighbridge and crane. There is no single fixed position of the centre of gravity of a machine which has attachments or components that are movable. When such a machine is tilted, as it must be to find the vertical co-ordinates, flexible pa
18、rts deflect, fluids and loose parts move, and the position of the centre of gravity therefore changes. Again, particularly in the case of earth-moving machinery, the position of the centre of gravity will depend upon the nature and position of any attachments or ancillary equipment with which the it
19、em is fitted. It is therefore essential in all cases to state exactly the conditions of test. 1 Scope and field of application This International Standard specifies a method for determining the co-ordinates of the centre of gravity of earth-moving machinery such as tractors, loaders, dumpers and gra
20、ders in any condition of loading or position of attachments. 2 Definitions For the purpose of this International Standard the following definitions apply: 2.1 machine the machine or other object whose centre of gravity is to be determined 2.2 apparatus the equipment required to determine the centre
21、of gravity of a machine 2.3 attachment a piece of equipment which is available for mounting on the machine for a particular purpose (for example a bulldozer blade, winch or bucket) 2.4 “left-hand” and “right-hand” sides these terms apply when facing in the primary direction of travel 2.5 mass the ma
22、ss of the machine as submitted for test 3 Preparation and loading of machine The machine shall be clean and shall be tested in normal working conditions or in a specified condition agreed between the manufacturer and the testing authority. 3.1 Radiator, sump, hydraulic and other reservoirs, shall be
23、 filled to specified working levels; the fuel tank shall be full or empty or in a specified condition as agreed between the manufacturer and testing authority. 3.2 Tools, spare tyre, and loose accessories and equipment shall be complete as supplied and shall be in the normal stowage positions. 3.3 T
24、yre pressures shall be as specified in the manufacturers operating instructions or, if a range of pressures is allowed, at the highest pressure recommended. In the case of machines fitted with hydro-inflation tyres they shall be filled in accordance with the manufacturers operating instructions. 3.4
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