BS-6911-2-1990 ISO-8313-1989.pdf
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1、BRITISH STANDARD BS 6911-2: 1990 ISO 8313:1989 Testing earth-moving machinery Part 2: Measurement of tool forces and tipping loads of loaders Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 12:36:55 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6911-2:1990 This British Standard, having been p
2、repared under the direction of the Road Engineering Standards Policy Committee, was published under the authority of the Board of BSI and comes into effect on 31 July 1990 BSI 09-1999 The following BSI references relate to the work on this standard: Committee reference RDB/21 Draft anounced in BSI N
3、ews April 1990 ISBN 0 580 18622 9 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Road Engineering Standards Policy Committee (RDB/-) to Technical Committee RDB/21, upon which the following bodies were represented: AFRC Institute of Engi
4、neering Research Associated Offices Technical Committee British Coal Corporation Construction Industry Training Board Construction Plant-Hire Association Federation of Civil Engineering Contractors Federation of Manufacturers of Construction Equipment and Cranes Health and Safety Executive Instituti
5、on of Civil Engineers Institution of Highways and Transportation Ministry of Defence Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 12:36:55 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6911-2:1990 BSI 09-1999i Contents Page Committee
6、s responsibleInside front cover National forewordii 1Scope1 2Normative references1 3Definitions1 4Apparatus2 5Test site2 6Preparation for test2 7Methods of measuring tool forces2 8Method of measuring tipping load3 9Test report3 Figure 1 Tipping condition4 Figure 2 Typical test arrangement for determ
7、ination of maximum breakout force exerted by lift cylinder(s)5 Figure 3 Typical test arrangement for determination of maximum breakout force exerted by tilt cylinder(s)6 Figure 4 Typical test arrangement for determination of maximum lifting capacity to full height7 Figure 5 Typical test arrangement
8、for determination of maximum tipping load at maximum outreach7 Table 1 Test results4 Publication(s) referred toInside back cover Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 12:36:55 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6911-2:1990 ii BSI 09-1999 National foreword This Part of BS
9、6911 is a minor revision of BS 6819:1987 incorporating changes in the definitions for hydraulic pressure terms. It has been prepared under the direction of the Road Engineering Standards Policy Committee. BS 6911-2 is identical with ISO 8313:1989 “Earth-moving machinery Loaders Methods of measuring
10、tool forces and tipping loads” published by the International Organization for Standardization (ISO). This Part of BS 6911 supersedes BS 6819:1987 which is withdrawn. ISO 8313 was produced as a result of international discussion in which the UK took an active part. A British Standard does not purpor
11、t 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 from legal obligations. Cross-references International StandardCorresponding British Standard ISO 5
12、998:1986BS 6912 Safety of earth-moving machinery Part 2:1989 Specification for rated operating load for crawler and wheel loaders (Identical) ISO 6016:1982BS 6300:1982 Methods of measuring the masses of whole machines, their equipment and components of earth-moving machinery (Identical) BS 6914 Term
13、inology (including definitions of dimensions and symbols) for earth-moving machinery ISO 6165:1987Part 1:1988 Glossary of terms for basic types of earth-moving machinery (Identical) ISO 6746-1:1987Part 2:1988 Glossary of terms for base machine (Identical) ISO 7131:1984BS 6685:1986 Glossary of terms
14、for loaders used for earth-moving (Identical) ISO 7546:1983BS 6422:1983 Method for volumetric rating of loader and front loading excavator buckets used for earth-moving (Identical) Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 8, an inside
15、back cover 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 inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 12:36:55 GMT+00:00 2006, Uncontrolled Copy, (c) B
16、SI BS 6911-2:1990 BSI 09-19991 1 Scope This International Standard specifies methods for determining the tool forces and tipping loads of loaders, together with their limiting conditions. It applies to crawler and wheeled loaders as defined in ISO 6165 (see also ISO 7131). 2 Normative references The
17、 following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard ar
18、e encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 5998:1986, Earth-moving machinery Rated operating load for crawler and wheel loaders. ISO 6016:
19、1982, Earth-moving machinery Methods of measuring the masses of whole machines, their equipment and components. ISO 6165:1987, Earth-moving machinery Basic types Vocabulary. ISO 6746-1:1987, Earth-moving machinery Definitions of dimensions and symbols Part 1: Base machine. ISO 7131:1984, Earth-movin
20、g machinery Loaders Terminology and commercial specifications. ISO 7546:1983, Earth-moving machinery Loader and front loading excavator buckets Volumetric ratings. 3 Definitions For the purposes of this International Standard, the following definitions apply. 3.1 Tool forces 3.1.1 breakout force max
21、imum sustained vertical upward force generated at a point 100 mm behind the lip of the bucket, when operating the lift cylinders or the tilt cylinders, and with the bottom of the cutting edge parallel with and 20 mm above GRP (ground reference plane) for buckets with a curved or pointed cutting edge
22、, the forces shall be measured at the centre of the bucket width 3.1.2 lifting capacity maximum load which can be lifted in the bucket from the ground to full height using the lift cylinders, with the bucket tilted back and the load being applied through the centroid of the rated bucket volume (as s
23、pecified in ISO 7546) 3.2 tipping load (at maximum outreach or at a specified height) minimum mass acting downwards through the centroid of the rated bucket volume which will rotate the machine to the following tipping limiting conditions (see also 3.5.3 and 7.1): a) On crawler loaders For rigid fra
24、me suspensions, the tipping load is determined when the front track rollers are fully off the track (see Figure 1). For other types of suspension, the method of determining tipping load shall be specified by the manufacturer and shall be reported. b) On wheel loaders The tipping load is determined w
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