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1、INTERNATIONAL STANDARD IS0 7129 Third edition 1997-12-15 Earth-moving machinery - Cutting edges used on tractor-dozers, graders and scrapers - Principal shapes and basic dimensions Engins de ferrassement - Bords coupants utili a=400net; p=iso; o=isocs; s=central Printed in Switzerland ii INTERNATION
2、AL STANDARD 0 IS0 IS0 7129:1997(E) Earth-moving machinery - Cutting edges used on tractor-dozers, graders and scrapers - Principal shapes and basic dimensions 1 Scope This international Standard specifies - the principal shapes and dimensions of the cross-section, - the hole location for the mountin
3、g bolts, - the shapes and dimensions of holes for the mounting bolts, for cutting used on tractor-dozers, graders and scrapers, as defined in IS0 6165, taking interchangeability into consideration. NOTE - Some values in inches in this International Standard are not equivalent to the corresponding va
4、lues in millimetres because widely used values have been adopted. 2 Normative reference The following standard contains provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the edition indicated was valid. All standards a
5、re subject to revision, and patties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent edition of the standard indicated below. Members of IEC and IS0 maintain registers of currently valid International Standards. IS0 61651997
6、, Earth-moving machinery - Basic types - Vocabulary. 3 Cross-sections of cutting edges - Principal shapes and basic dimensions The principal shapes and basic dimensions of the cutting edge cross-section shall be as shown in figures 1 and 2 and given in tables 1 and 2. -,-,- IS0 7129:1997(E) Q IS0 Ta
7、ble 1 - Tractor-dozers and scrapers (see figure 1) Dimensions in millimetres (Inch values in parentheses) Application 1) Tractor with Tractor dozer scraper X X X X X X X X Width, W nom tol. 153 (6) 153 (6) *3(+0,118) 153 (6) 160 (6,3) 165 (65) 204 (8) 204 (8) 204 (8) Thickness, T nom. tol. 12,7 (0,5
8、) 16 (0,625) 19 (0,75) 16 (0,625) 16 (0,625) 16 (0,625) 19 (0,75) 22 (0,875) Tip of chamfer, F max. min 8 (0,32) 10 (0,39) 12 (0,47) 10 (0,39) 10 (0,39) 10 (0,39) 12 (0,47) 13 (0,51) 1) Recommendation only. NOTE - The shapes and dimensions of cutting edges with a 140 mm hole pitch are specified in a
9、nnex A. -,-,- 0 IS0 IS0 7129:1997(E) Table 2 - Graders (see figure 2) Dimensions in millimetres (Inch values in parentheses) Width, W Thickness, T Radius of curvature, R Chamfer E F nom. tol. nom. tol. nom. tol. min. 152 (6) 13 (0,5) 152(6) +3 +0,118 16 (0,625) 152(6) ( 1 - 1.5 - 0,059 19 (0,75) + 0
10、,6 (? 0,025) 273 (10y75) or280 (11) * IO (+ 0,394) 30 (1,18) 2,5 (w 204(8) 16 (0,625) 204 (8) 19 (0,75) NOTE - The shapes and dimensions of cutting edges with 140 mm and 280 mm hole pitches are specified in annex A Figure 1 - Cutting edge for tractor-dozers and scrapers Figure 2 - Cutting edge for g
11、raders 3 IS0 7129:1997(E) 4 Mounting bolts - Hole locations 4.1 The hole locations for the mounting bolts shall be as follows: a) for tractor-dozers and scrapers: for cutting edge of width, W, of 330 mm or less, see figure 3 a), for cutting edge of width, W, of over 330 mm, see figure 3 b); b) for g
12、raders, see table 3 and figure 4. NOTE - The shapes and dimensions of cutting edges with a 140 mm hole pitch are specified in annex A. 4.2 Each countersink shall be located within a 3,2 mm (0,125 in) diameter of the positional tolerance. 4.3 The camber of the cutting edge shall be within 2 mm/m (0,0
13、8 in/39,4 in). -,-,- IS0 7129:1997(E) Dimensions in millimetres (Inch values in parentheses) y-p / (-/2/l 000 (0,08/39.4)/ i (7 / i 1 7 + ._.- ,- - -_-,- 41 _-_- 000 (0.08/39.4)1 a) Width W Is equal to or less than 330 mm v-f r+2/1 000 (0.08/39.4) T WI 1 I / b I. cf 1 (W- ?6,2)/2 (W - 31121 i I _- -
14、_- Centrelines of rowsof holes - I, I - kk / I(W- 76.2)/2 (W- 3)/21 -12/l 000 (0,08/39.4)/ b) Width W is greater than 330 mm Figure 3 - Hole locations for tractor-dozers and scrapers 5 IS0 7129:1997(E) Table 3 - Graders (see figure 4) Q IS0 Dimensions in millimetres (Inch values in parentheses) 1) C
15、an be omitted for small machines NOTE - The shapes and dimensions of cutting edges with 140 mm and 280 mm hole pitches are specified in annex A Dimensions in millimetres (Inch values in parentheses) q-y 000 (0.08/39,4)1 , ,fp I I row of holes -y- - - _ I- t A _ a _I= ia I ? ? ? ? ? ? ? -/2/1000 (0,0
16、8/39,4)1 Figure 4 - Hole locations for graders 5 Mounting bolt holes - Shapes and dimensions 5.1 The shapes and dimensions of mounting bolts holes shall be those shown in figure 5 and given in table 4. 5.2 The inscribed circles of the square holes shall be concentric with the countersink to within 0
17、,8 mm (0,032 in). 6 -,-,- IS0 7129:1997(E) Table 4 - Mounting bolt holes Dimensions in millimetres (Inch values in parentheses) norn.l 14,3 (0,563) 17,5 (0,689) 20,6 (0,811) 24,2 (0,953) 27,4 (1,08) 34,0 (1,34) to, +;,8 (+,032) +25 (+,059) +F (+,063) 0 (+0“.079) +;,4 (+,095) +02,9 (+,I,) NOTE - The
18、shapes and dimensions of mounting bolt holes with 140 mm and/or 280 mm hole pitches are specified in annex A I 81“ t2 81?2“ 81“ t2“ R +I0 0.8 (0,032) IZ I /d Dimensions in millimetres (inch values in parentheses) Reverse countersink (for back face relief only) D is the diameter of countersink or cou
19、nterbore for effective R is the corner radius of square hole thickness H A is the diagonal dimension of square hole B is the width across flats of square hole F is the diameter of reverse countersink of square hole H is the minimum effective thickness Figure 5 - Dimensions of mounting bolt holes 7 -
20、,-,- IS0 7129:1997(E) Annex A (normative) Principal shapes and basic dimensions of cutting edges with 140 mm and 280 mm hole pitch A.1 Field of application This annex is applicable in those countries using 140 mm and 280 mm pitch for mounting bolts. A.2 Cross-sections of cutting edges - Principal an
21、d basic dimensions The principal shapes and basic dimensions of the cutting edge cross-section shall be as shown in figures A.1 and A.2 and given in tables A.1 and A.2. Table A.1 - Tractor-dozers and scrapers (see figure A.l) Dimensions in millimetres Width, W Thickness, T Tip of chamfer, F nom. tol
22、. nom. toi. max. min. 150 12 8 150 16 10 180 12 +1 180 16 -2 1;: 250 +2 18 12 300 - 43 18 12 4 300 25 16 360 25 16 400 25 + I,5 16 - 2,5 470 + 23 -5 30 20 r” “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ i W -j Figure A.1 - Cutting edge for tractor-dozers and scrapers 0 IS0 IS0 7129:1997(E) Tabl
23、e A.2 - Graders (see figure A.2) Dimensions in millimetres I Width, w I Thickness, T I Radius of curvature, R ) Tip of chamfer, F 1 nom t01. nom. tol. nom. tol. min. 180 + 2,5 12 180 fl 440 f30 2 - 4,5 18 350; Figure A.2 - Cutting edge for graders Table A.3 - Tractor-dozers (see figure A.3) Dimensio
24、ns in millimetres No. of rows Hole locations 1 1) A*) PTr) 2 48 156; 176 66 202 I 1) See figure A.3 a). 2) See figure A.3 b). 9 -,-,- IS0 7129:1997(E) IS0 A.3 Mounting bolts - Hole locations A.3.1 The hole locations for the mounting bolts shall be those shown in figures A.3 to A.5 and given in table
25、s A.3 and A.4. A.3.2 Each countersink shall be located within a 3,2 mm diameter of the positional tolerance. A-3.3 The camber of the cutting edge shall be within 6 mm/m. Dimensions in millimetres +I0 3.21 Each hole _- Centreline of l-16/1 0001 I f -. Nl 21 ._.- 4 ? -_, - - I f - LJ m 4 I (46/l 000 1
26、 a) One row Centrelines of rows of holes I b) Two rows Figure A.3 - Hole locations for tractor-dozers 10 -,-,- 0 IS0 IS0 7129:1997(E) Table A.4 - Graders (see figure A.4) Dimensions in millimetres Centre portion, P Dimensions in millimetres Centreline of Figure A.4 - Hole locations for grades Dimens
27、ions in millimetres I+10 3.2 1 Each hole j-16/1 0001 1) The number of rows of holes is optional. Figure A.5 - Hole locations for scrapers -,-,- IS0 7129: 1997(E) 0 IS0 A.4 Mounting bolt holes - Shapes and dimensions The shapes and dimensions of the holes for the mounting bolts shall be those shown i
28、n figure A.6 and given in table AS. Table A.5 - Mounting bolt holes (see figure A.6) Dimensions in millimetres z.5 24 29 36 444 65 I 90 t2 90” k2 90 k2 I Key Reverse countersink (For back face relief only excluding the case of 90 *2 ) D is the diameter of countersink or counterbore for effective H i
29、s the minimum effective thickness thickness H R is the corner radius of square hole B is the width across fiats of square hole F is the diameter of reverse countersink of square hole Figure A.6 - Dimensions of mounting bolt holes 12 -,-,- ISO 7129:1997(E) IS0 ICS 53.100 Descriptors: site equipment, earth-moving equipment, bulldozers, graders, scrapers, accessories, cutting edges, form specifications, dimensions, shape Pricebasedon12pages