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1、e o J I S B*ILi 92 Li933608 0509089 289 D JIS UDC 621.85.051 :621.867.2 JAPANESE INDUSTRIAL STANDARD Pulleys for belt conveyors JIS B 8 8 1 4 - 1 9 9 2 Translated and Published bY Japanese Standards Association Printed in Japan 7s J I S B*88L4 92 4933608 0509090 TTO In the event of any doubt arising
2、, the original Standard in Japanese is to be final authority, a a a a J I S B*88L4 92 = 4933b08 0509093 937 = UDC 621.85.051:621.867.2 JAPANESE INDUSTRIAL STANDARD J I S Pulleys for belt conveyors B 8814-1992 1. scop This Japanese Industrial Standard specifies the pulleys for stationary type belt co
3、nveyors (hereafter referred to as the “pulleys“) to be used mainly for transportation of loose bulk materials (such as ores, muds and sands, coal, cement and cereals). However, such as motor pulleys and magnetic pulleys are excluded. Remarks 1. The applicable Standards to this Standard are the follo
4、wing: JIS B 0140-Glossary of Terms Relating to Conveyors (Part 1 Kinds of Conveyors) JIS B 0141-Glossary of Terms Relating to Conveyors (Part 2 Conveyor Parts and Accessories) 2. The Corresponding International Standard equivalent to this Standard is as given in the following: IS0 1536-1975 Continuo
5、us mechanical handling equipment for loose bulk materials - Troughed belt conveyors (other than portable conveyors) - Belt pulleys 2. Definitions For the purposes of this Standard, the following definitions apply, and others are in accordance with JIS B 0140 and JIS B 0141. (1) contact angle of belt
6、 (hereafter referred to as the “beltt1, being in contact with the pulley An angle of the section of the conveyor belt - - - in respect to the center of the pulley. (2) runout on outside diameter of pulley outside diameter in respect to the center of pulley shaft. includes the parallelism also. The r
7、otational runout on This (3) difference between the pulley outside diameters The difference between the right and left diameters being generated in the case where the outer cylinder pulley has become a tapered shape. (4) distance between the centers of bearings installation centers of the right and
8、left bearings. The distance between the 3. Grades The grades of the pulleys shall be the two grades of A and B according to the differences of pulley outside diameters and the runouts on outside diameter of pulley, and be in accordance with Table 1. J I S B*8814 92 4933b08 0509092 873 Type of belt 2
9、 B 8814-1992 Contact angle - A B Table 1. Grades of pulleys I Grades Strength of canvas 15 kN/cm or over and steel chord 120 or over Overall speeds - 60 or over to Speed 4.17 m / s Speed under and excl. 120 or over 4.17 m/s Strength of canvas under 15 kN/cm Under 60 I - I Overail speeds I 120 or ove
10、r Speed 4.17 m / s Speed under or over 4.17 m / s Under 60 - 60 or over to and excl. 120 Overall speeds Overall speeds 4. Qualities The outer cylinder part of the pulleys shall be free from harmful ec- centricity and uneven wail thickness. In addition, the performances, where it has support by beari
11、ngs, shail be smooth on revolution of pulley, and be excellent in balance and circularity. 5. Shapes and construction The pulley shall be that of a cylindrical shape which conducts the driving and guidance of a belt having a contact angle in respect to the belt, consisting of an outer cylinder, end
12、plates and a shaft. The pulley shall be robust agianst the tension and driving torque of the belt being loaded to the pulley and be endurable sufficiently in use. An example of the construction shail be indicated in Fig. 1. Fig. 1. Construction of pulley Outer cylinder I / /Enci plate J I S B*8814 9
13、2 W 4933608 0509093 70T Over 315 up to and including 700 Over 700 up to and including 1600 3 B 8814-1992 f 4.0 k 5.0 6 , Dimensions a 6.1 Pulley outer diameters The dimensions of pulley outer diameters shall be in accordance with Table 2. Table 2. Pulley outer diameters Unit: mm ZOO, 250, 315, 400,
14、500, 6007 6307 700, 800s 900, 1000, 1100, 1200, 1250, 1400, 1600 Remarks 1. In the case where a lagging is to be processed on the pulley surface, the lagging thickness shall be added to the dimension given in Table 2. 2. A pipe may be used for the outer cylinder of pulley. used, that is similar to t
15、he dimension given in Table 2 shall be used. In the case where the pipe is 3. In the case where other pulley outer diameter than given in Table 2 is to be used, on account of the belt speed and connection with the equipment, it shall be as agreed between the parties concerned with delivery. 6.2 Tole
16、rances on pulley outer diameters The tolerances on the pulley outer diameters shall respectively be as given in Table 3, in respect to the - pulley outer diameters. Table 3. Tolerances on pulley outer diameters Unit: mm I Tolerances Pulley outer diameter 315 or under I k 3.0 Remarks: As regards the
17、tolerances for the pulleys with laggings, 1 mm shall be added to the values of Table 3 respectively. 6.3 Pulley widths The pulley widths and tolerances thereof shall be in accordance with Table 4 for respective belt widths. JIS B*66/4 92 4933606 0509074 646 M Belt Pulley Toler- Belt width width ance
18、s width 400 500 k2.0 1200 500 600 1400 650 750 1600 4 B 8814-1992 .Pulley Toler- Belt .Pulley Toler- width ances width width ances 1400 k2.0 2200 2450 13.0 1600 24Qo 2650 1800 2600 2900 6.4 Distances between bearing centers and off-sets of pulley centers The distances between the bearing centers and
19、 tolerances thereof shall be in accordance with Table 5. centers shall be the value given in Table 5 to which the belt width has been added. Howver, the distance between the bearing In addition, the off-set of the center between the bearing centers and the center of pulley shall mean the value of C
20、given in Fig. 2, and its tolerance shall be in accordance with Table 6. Fig. 2. Dimensions of pulley : Pulley width 111 / / I I - Y / Center of mountin I f of bearfng I 4 y - L - r L _I- L 4 L: Distance between the bearing centers Center between the bearings a o a o J I S B*&L4 92 4933b08 0509095 58
21、2 Bearing diameter Over 40 up to and incl. 100 Over 100 up to and ind. 40 5 B 8814-1992 Division Belt widths 41H)t0650 800, loo0 1200tol.0 1800, Zoo0 2200, 2400 2600 Drihg pulley 500 f 2 . 0 550 f2.0 600 k2.0 700 f3.0 750 13.0 800 f4.0 Driven pulley() 41H) 450 500 600 650 700 Driving puiiey 550 600
22、650 750 800 850 m m LE-l I 2 9 I 650 1 Driven puiiey ( l ) 450 Table 5. Distances between the bearing centers and tolerances thereof Unit: mm B e l t Toler- width ance . Belt Toler- . Belt : Toler- width ance width ance 700 600 800 700 650 800 I 750 I U 2600 5.0 1600 2.5 1 800 3.5 I 850 I I ml I 950
23、 I Note (I) In the case of the driver pulley with chute, the driving pulley shall be applied. e Table 6. Tolerances on off-set c of pulley centers Unit: mm 6.5 Runouts of pulley outer diameters The permissible values of the runouts on the pulley outer diameters for Grade A pulleys, in respect to the
24、 respective pulley outer diameters, shall be in accordance with Table 7. e Table 7. Permissible values of runouts on pulley outer diameters Unit: mm Pulley out er diameter I Permissible value 500 or under Over 500 up to and including 800 Over 800 1.0 1.5 2.0 Remarks 1. As regards the lagged pulleys,
25、 these shall be applied to the lagging outer diameters, and the permissible values shall be added with 0.5 mm to the values given in Table 7 respectively. 2. As regards the dents of joint part by the wind- ing process of outer cylinders and the outside parts of the end plates, the application of Tab
26、le 7 shall be omitted. J I S B+8814 92 4933608 O509096 419 Pulley outer diameter Type Pulleys without 500 or under lagging Over 500 Lagged pulleys 500 or under Over 500 6 B 8814-1992 Belt widths 4.00to650 800, loo0 1200to2000 2200to2600 1.0 1.5 2.0 2.5 1.5 2.0 2.5 3.0 1.5 2.0 2.5 3.0 2.0 2.5 3.0 3.5
27、 6.6 Differences for pulley outer diameters The permissible values of the differences for the pulley outer diameters for Grade A pulleys shall be in accordance with Table 8. 7. Test methods 7.1 Pulley outer diameter As regards the pulley outer diameter, measure at three places or over on the overall
28、 width. 7.2 Distance between the bearing centers As regards the distance between the bearing centers, it may also be obtained by adding pulley width to the measured values of the lengths between the end faces of pulley outer cylinder and the mounting centers of bearings. 7.3 Runout on pulley outer d
29、iameter As regards the runout on the pulley outer diameter, measure at three places or over on the overall width. 8. Inspection The inspection shall be carried out, according to the grades of pulleys, on respective items of Table 9, and the results shall conform to the re- quirements of 4. and 6. Ta
30、ble 9. Inspection items Grade A B Qualities and dimensions (pulley outer diameter, pulley width, distance between the bearing centers, runout on pulley outer diameter, and difference of pulley outer diameter) Qualities and dimensions (pulley outer diameter, pulley width, and distance between the bea
31、ring centers) 9. Designation The product shall be designated by the number of standard, symbol, form of pulley ( 2 ) and nominal sizes (3). Only in the case of the Grade A pulley, letter A shall be appended after the number of Standard. 0 a a a J I S B*881Y 92 H 4933608 0509097 355 H 7 E 8814-1992 E
32、xample 1. The driven pulley of 800 mm in belt width, 1000 mm in pulley outer diameter, 135 mm in shaft diameter at end plate, and 100 mm in bearing diameter: JIS B 8814 POOO-SO * 100-135 100 Example 2. The driving pulley of 1200 mm in belt width, 1400 mm in pulley outer diameter, 150 mm in shaft dia
33、meter at end plate, and 140 mm in bearing diameter, and of right hand rotation and Grade A pulley: Notes (2) The symbol of P shall express a .pulley, and the form of pulley shall be the form determined by the manufacturers side. (3) The nominal size shaii consist of belt width, pulley outer diameter
34、, shaft diameter at end plate and bearing diameter. Remarks 1. The units of nominal sizes shall be expressed by cm unit for the belt width and pulley outer diameter, and by mm unit for the shaft diameter. 2. When required, the rotational direction shall be clearly stated. In this case, clockwise rot
35、ational direction viewed from the mounting side of driving components shaii be defined as R (right handed rotation), and counterclockwise rotational direction as L (left handed rotation). 10. Marking. The pulley shall be marked with the following information on an ap- propriate place. (1) (2) Manufa
36、cturers name or its abbreviation Grade (exclusively for the Grade A pulley.) Reference Standards: JIS B 8803-Rollers for Belt Conveyor JIS K 6322-Ply Construction Conveyor Belts JIS K 6369-Steel Cord Conveyor Belts J I S B*88LLI 92 4933bO 0509098 291 8 B 8814-1992 Informative Reference Dimensions Th
37、is Informative reference supplements the matters relating to the prescriptions of the text of this Standard, but it does not constitute a part of the Standard. 1. Pulley widths The pulley widths and tolerances thereof shall be in accordance with Informative reference Table 1. Informative reference T
38、able 1. Pulley widths Unit: mm and tolerances thereof Belt width Pulley width * 2.0 750 900 1 1050 I 1050 I 1200 I 2. Distances between the bearing centers and off-sets for pulley centers The distances between the bearing centers and tolerances thereof shall be i n accordance with Informative refere
39、nce Table 2. However, the distances between the bearing centers are the values of belt widths to which the values of Informative reference Table 2 have been added. In addition, the off-sets of the centers between bearings and the centers of pulley widths mean the values of C in Fig. 2 of the text of
40、 the Standard, and the tolerances thereof are in accordance with Informative reference Table 3. J I S B*88L4 92 4933606 O509099 128 D 450, 600 diameter 9. B 8814-1992 750, 900, 1050 Informative reference Table 2. Distances between the bearing centers and tolerances thereof Unit: mm Driving pulley f
41、2.0 Over 40 up to 550 450 I I l I I Driving pulley and incl* 140 Over 100 up to I Driving pulley Driven pulley (I) Over 140 up to and 650 -550 Driving pulley Over 220 up to f 2.0 Note ( l ) In the case of the driven pulley with chute, the driving pulley applies. Informative reference Table 3. Tolera
42、nces on off-sets of pulley centers Unit: mm Belt width Tolerance 450, 600 750, 900, 1050 3. Differences of outer diameters The permissible values for differences of outer diameters of Grade A pulleys shall be in accordance with Informative reference Table 4. Informative refrence Table 4. Permissible
43、 values for differences of pulley outer diameters Unit: mm Belt widths Pulley outer diameter Type Pulleys without 500 or under lagging Over 500 Lagged pulleys 500 or under Over 500 1.5 1.5 1.5 I 2.0 2.0 2.5 JIS B*88LY 92 H 4933608 0509100 77T m B 8814-1992 Edition 1 Japanese Text Established by Mini
44、ster of International Trade and Industry Date of Establshment : 1982-03-01 Date of Revision: 1992-05-01 Date of Public Notice in Official Gazette: 1992-05-18 Investigated by: Japanese Industrial Standards Committee Divisional Council on Distribution of Goods This English translation is published by: Japanese Stan dards As socia tion 1-24, Akasaka 4, Minato-ku, Tokyo 107 Japan 0 JSA, 1993 Rinted in Tokyo by Hohbunsha Co., Ltd.