BS 6916-2-1996 Chain saws - Technical data《链锯 第2部分 技术数据》.pdf

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1、BRITISH STANDARD BS 6916-2: 1996 ISO 6532:1993 Chainsaws Part 2: Technical data ICS 65.060.80BS6916-2:1996 This British Standard, having been prepared under the directionof the Engineering SectorBoard, was published underthe authority of the Standards Board and comes intoeffect on 15July1996 BSI 07-

2、1999 The following BSI references relate to the work on this standard: Committee reference AGE/29 Draft for comment92/81111 DC ISBN 0 580 25947 1 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee AGE/29, Forestry machinery,

3、 upon which the following bodies were represented: Agricultural Engineers Association Arboricultural Association Consumers Association Department of Trade and Industry (Consumer Safety Unit, CA Division) Forestry Commission Health and Safety Executive Hire Association Europe Institution of Agricultu

4、ral Engineers Incorporated National Farmers Union Co-opted members Amendments issued since publication Amd. No. Date CommentsBS6916-2:1996 BSI 07-1999 i Contents Page Committees responsible Inside front cover National foreword ii 1 Scope 1 2 Normative references 1 3 Technical data 1 Figure 1 Externa

5、l dimensions of saw excluding guide-bar and chain 3 List of references Inside back coverBS6916-2:1996 ii BSI 07-1999 National foreword This British Standard has been prepared by Tehcnical Committee AGE/29 and is identical with ISO6532:1993 Portable chainsaws Technical data, published by the Internat

6、ional Organization for Standardization (ISO). It supersedes BS6916-2:1988 which is withdrawn. ISO6532 was prepared by Technical Committee ISO/TC23, Tractors and machinery for agriculture and forestry. The Technical Committee has reviewed the provisions of ISO9207 and ISO9518: 1992 to which reference

7、 is made in the text, and has decided that they are acceptable for use in conjunction with this 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 Sta

8、ndard does not of itself confer immunity from legal obligations. Cross-references Publication referred to Corresponding British Standard ISO 3448:1992 BS 4231:1992 Classification for viscosity grades of industrial liquid lubricants (Identical) ISO 6531:1982 BS 6916 Chain saws Part 1:1988 Glossary of

9、 terms (Identical) ISO 6535:1991 Part 5:1988 Methods of evaluating chain brake performance (Identical) ISO 7182:1984 Part 6:1988 Method of measurement of airborne noise at the operators position (Identical) ISO 7293:1983 Part 7:1988 Method of evaluating engine performance including fuel consumption

10、(Identical) ISO 7505:1986 Part 8:1988 Method of measurement of hand-transmitted vibration (Identical) Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages1 to 4, an inside back cover and a back cover. This standard has been updated (see copyright date)

11、 and may have had amendments incorporated. This will be indicated in the amendment table on theinside front cover.BS6916-2:1996 BSI 07-1999 1 1 Scope This International Standard provides the format for specification of the technical data for portable, hand-held chain-saws with combustion engines, in

12、 accordance with the vocabulary in ISO6531. 2 Normative references The 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 revis

13、ion, and parties to agreements based on this International Standard are 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 3448:1992, Industrial liq

14、uid lubricants ISOviscosity classification. ISO 6531:1982, Machinery for forestry Portable chain saws Vocabulary. ISO 6535:1991, Portable chain-saws Chain brake performance. ISO 7182:1984, Acoustics Measurement at the operators position of airborne noise emitted by chain saws. ISO 7293:1983, Forestr

15、y machinery Portable chain saws Engine performance and fuel consumption. ISO 7505:1986, Forestry machinery Chain saws Measurement of hand-transmitted vibration. ISO 9207:, Manually portable chain-saws with internal combustion engine Determination of sound power levels 1) . ISO 9518:1992, Forestry ma

16、chinery chain-saws Portable Kickback test. 3 Technical data 3.1 Masses The following masses shall be specified: 3.2 Volumes The following volumes shall be specified: 3.3 Guide-bar The following guide-bar details shall be specified: 1) To be published. a) saw without guide-bar and chain, empty tanks:

17、 kg b) saw with specified guide-bar and chain, empty tanks: kg c) saw with specified guide-bar and chain, full tanks: kg a) fuel tank: l b) tank for chain lubricating oil: l a) usable cutting length of specified guide-bar: cm b) recommended maximum usable cutting length of guide-bar: cm c) width of

18、guide-bar groove: mm d) nose size: mmBS6916-2:1996 2 BSI 07-1999 3.4 Chain The following chain details shall be specified: 3.5 Drive sprocket The following drive sprocket details shall be specified: 3.6 External dimensions The following external dimensions (seeFigure 1) shall be specified: 3.7 Size

19、of engine The engine details shall be indicated as follows: a) specified pitch: mm NOTE 1The pitch may also be given in inches. b) specified gauge (thickness of drive links): mm c) number of drive links for specified length of guide-bar and specified sprocket: d) chain speed at 1,33 times the maximu

20、m power speed or maximum speed, whichever is less: m/s a) specified number of teeth: b) specified pitch: mm NOTE 2The pitch may also be given in inches. a) length: mm NOTE 3If the front hand-guard is behind the saw housing in its normal operating position, the length is measured to the foremost part

21、 of the saw housing. In the case of a fixed spiked bumper, the bumper is considered to be part of the saw housing. b) width: mm c) height: mm a) engine displacement: cm 3 b) maximum shaft brake power, measured in accordance with ISO7293: kW c) engine rotational speeds: 1) at maximum engine power: s

22、1 2) recommended maximum speed: s 1 3) recommended speed at idling: s 1 4) engine speed at the beginning of clutch engagement: s 1 NOTE 4These rotational speeds may alternatively or additionally be given in min 1 .BS6916-2:1996 BSI 07-1999 3 3.8 Fuel consumption The following fuel consumptions, meas

23、ured in accordance with ISO7293, shall be given: 3.9 Sound pressure levels The following A-weighted sound pressure levels, measured in accordance with ISO7182, shall be given: Additionally an equivalent sound pressure level (L peq ) may be calculated as follows: 3.10 Sound power levels The following

24、 A-weighted sound power levels, measured in accordance with ISO9207, shall be given: a) fuel consumption at maximum engine power: l/h b) specified fuel consumption at maximum engine power: g/(kWh) a) idling (L pI ): dB b) full load (L pFL ): dB c) racing (L pR ): dB d) octave band analysis (if requi

25、red): a) chain-saws with an engine displacement 80cm 3 b) chain-saws with an engine displacement U 80 cm 3 Figure 1 External dimensions of saw excluding guide-bar and chain a) idling (L WI ): dB b) full load (L WFL ): dB c) racing (L WR ): dBBS6916-2:1996 4 BSI 07-1999 Additionally an equivalent sou

26、nd power level (L Weq ) may be calculated as follows: 3.11 Chain lubrication 3.12 Chain brake The chain brake performance shall be measured in accordance with ISO6535, and the following times given: 3.13 Vibration levels The vibration levels at the following speeds shall be measured in accordance wi

27、th ISO7505, and the results given: 3.14 Kickback levels The kickback levels, i.e.the maximum angle for any recommended combination of specified guide-bar, chain and drive sprocket shall be measured in accordance with ISO9518, and the results given: a) chain-saws with an engine displacement 80 cm 3 b

28、) chain-saws with an engine displacement W 80 cm 3 a) The following oil consumption of the automatic lubricating system for the chain at the engine speed corresponding to maximum engine power, with a viscosity of oil of ISO VG100, in accordance with ISO3448, shall be given. 1) adjustable maximum: cm

29、 3 /min 2) adjustable minimum: cm 3 /min 3) fixed: cm 3 /min b) Manual: cm 3 /stroke a) average braking time from racing speed: ms b) maximum braking time from racing speed: ms a) idling: m/s 2 b) full load: m/s 2 c) racing: m/s 2 a) computed kickback angle without brake: b) computed kickback angle

30、with brake: c) chain stop angle: BS6916-2:1996 BSI 07-1999 List of references See national foreword.BS 6916-2: 1996 ISO 6532:1993 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the U

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