GB/T 36664-2018 English PDF

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GB/T 36664-2018: Ships and marine technology - Ship's mooring and towing fittings - Steel rollers
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Basic data

Standard ID: GB/T 36664-2018 (GB/T36664-2018)
Description (Translated English): Ships and marine technology - Ship's mooring and towing fittings - Steel rollers
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: U21
Classification of International Standard: 47.020.50
Word Count Estimation: 22,254
Date of Issue: 2018-09-17
Date of Implementation: 2019-04-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 36664-2018: Ships and marine technology - Ship's mooring and towing fittings - Steel rollers

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Ships and marine technology - Ship's mooring and towing fittings - Steel rollers ICS 47.020.50 U21 National Standards of People's Republic of China Ship and offshore technology ship mooring and towing equipment Cable guide roller Steelrolers (ISO 13755.2012, IDT) Published on.2018-09-17 Implementation of.2019-04-01 State market supervision and administration China National Standardization Administration issued

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard uses the translation method equivalent to ISO 13755.2012 "ship and marine technology ship mooring and towing equipment guide cable rolling wheel". This standard has made the following editorial changes. --- Added the informative Appendix NA to explain the mark. This standard is proposed and managed by the National Ship Armor Standardization Technical Committee (SAC/TC129). This standard was drafted. Dalian Shipbuilding Industry Group Co., Ltd. The main drafters of this standard. Li Jie, Sun Xiaohui, Zhang Zhanli, Zhang Fengwei, Zheng Liyan, Liu Xiaopeng, Yang Chenglong, Ma Yulong. Ship and offshore technology ship mooring and towing equipment Cable guide roller

1 Scope

This standard specifies the design, dimensions and technical requirements of the cable guide rollers. This standard applies to the design, manufacture and acceptance of the cable guide rollers.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. ISO 13767 Ship and marine technology ship mooring and towing equipment side wheel guides (Shipsandmarinetech- nology-Ship'smooringandtowingfittings-Shipsiderolerfairleads) ISO 13776 Ship and marine technology ship mooring and towing equipment vertical roller guides (Shipsandmarinetech- nology-Ship'smooringandtowingfittings-Pedestalfairleads) IMOCircularMSC/Circ.1175 Ship Towing and Mooring Equipment Guide (Guidanceonshipboardtowingand Mooringequipment)

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Safe working load safeworkingload; SWL The maximum load that a mooring line is allowed to withstand under normal operating conditions, in kilohertz (kN).

4 classification

4.1 Type The cable guide rollers are divided into the following three types according to the structure. Type A---No upper dust cover cast steel cable guide roller; Type B---with upper dust cover cast steel cable guide roller; Type C---Steel cable with dust cover steel plate. 4.2 Nominal size The nominal size of the cable rollers is 150,.200, 250, 300, 350, 400, 450 and 500. The nominal size Dn is the smallest dimension of the outer diameter of the roller, in millimeters (mm).

5 size

The specific dimensions and details of the guide roller are shown in Table 1, Table 2, Table 3, Table 4, and Figure 1, Figure 2, Figure 3, Figure 4, Figure 5, Figure 6, Figure 7, and Figure 8. The unit is mm a) Type A Figure 1 Assembly diagram of cable guide rollers with nominal dimensions of 150,.200, 250 (Type A and Type B) The unit is mm b) Type B Description. 1---roller; 2---roller shaft; 3--- bushing; 4---The dust cover is only suitable for type B; 5---N-M6 bolts. a Flow hole. Figure 1 (continued) The unit is mm a) Type A Figure 2 Assembly diagram of cable guides with nominal dimensions of 300 and above (Type A and Type B) The unit is mm b) Type B Description. 1---roller; 2---roller shaft; 3--- bushing; 4---The dust cover is only suitable for type B; 5---N-M6 bolts. a Flow hole. Figure 2 (continued) The unit is mm Description. 1---roller; 2---The dust cover is only suitable for type B. Figure 3 Detail of the nominal 150,.200, 250 roller (type A and type B) The unit is mm Description. 1---roller; 2---The dust cover is only suitable for type B. Figure 4 Detail of the roller with a nominal size of 300 and above (Type A and Type B) Table 1 Dimensions and safe working load units of Type A and Type B cable guides are in millimeters Nominal size Dn D1 D2 D3 D4 D5 R1 R2 R3 R4 H H1 H2 H3 H4 e 150 150 230 216 110 90 30 52 15 11 137 25 84 44.7 43.38 37.7 200.200 300 280 145 115 40 66 20 13 157 30 99 59.2 35.46 46.3 250 250 370 340 165 135 50 80 25 15 177 32 105 73.5 28.33 55.0 300 300 430 400 190 150 350 350 490 460 210 167 400 400 560 520 225 177 450 450 620 590 245 190 500 500 680 660 260 205 125 82.6 32.62 60.8 140 83.7 49.06 63.7 150 91.8 52.0 72.2 162 92.5 67.07 74.8 180 93.0 82.94 77.6 Table 1 (continued) Unit is mm Nominal size Dn h h1 h2 fixed Screw T T1 N Solder foot height Z1 Safe working load b θ=90°a θ=0° kN t kN t Calculate weight c Kg Type A B M6 M8 8 265 27 186 19 23 24 10 441 45 314 32 42 43 11 579 59 412 42 77 80 12 726 74 510 52 109 112 15 1040 106 736 75 154 160 17 1246 127 883 90 207 215 20 1599 163 1128 115 275 286 23 1942 198 1373 140 360 374 Aθ is the angle formed by the mooring lines of the roller guide cable (see Appendix A). b The safe working load (SWL) is based on the maximum load that the rope can withstand, and the angle formed by the rope through the roller is 90° (ie θ=90°) Calculated with a state of 180° (ie, θ = 0°). The safe working load is obtained in accordance with the assessment method in Appendix A and is for reference only. The safe working load can be adjusted according to the actual load situation. The actual marked safe working load should be recognized by both the manufacturer and the user. Value. c Calculating the weight is for reference only. The unit is mm a) bushing Figure 5 Detail of the roller shaft and bushing of the cable guide roller (Type A and Type B) The unit is mm b) roller shaft a Filling nozzle. b Lubrication tank. Figure 5 (continued) Table 2 Roller Shafts and Bushings for Cable Rollers (Type A and Type B) Units are in millimeters Nominal size Dn Roller bushing D1 d2 d3 H h1 h2 h3 h4 h5 bm×d D4 D5 D6 H h5 h6 s 150 71 105 71 115 200 93 135 93 135 250 113 155 113 144 300 128 175 128 166 350 145 190 145 181 400 154.200 154.201 450 167 220 167 213 500 178 235 178 232 M10× M16× M20× M24× 71 90 105 92.5 93 115 135107.5 113 135 155113.5 128 150 175135.5 145 167 190150.5 154 177.200160.5 167 190 220172.5 178 205 235190.5 84.5 99.5 105.5 125.5 140.5 150.5 162.5 180.5 M6 M8 The unit is mm Description. 1---roller; 2---roller shaft; 3---upper bushing; 4---lower bushing; 5---N-M6 bolt holes. Figure 6 Cable guide assembly drawing (type C) The unit is mm Figure 7 Detail of the C-type roller Table 3 C-type cable guide roller size specifications and safe working load in millimeters Nominal size Dn D1 D2 D3 D4 D5 D6 D7 D8 D9 R1 R2 R3 R4 H H1 150 150 230 220 121 95 110 121 69 140 40 17 20 214 150 16 200.200 300 280 162 118 140 144 86 190 50 21 25 279 185 21 250 250 370 340 186 136 160 162 97 250 60 25 30 327 220 25 300 300 430 400 209 149 180 175 114 300 65 28 32 446 240 30 350 350 490 455 236 172 195 198 130 350 70 30 35 537 260 35 400 400 560 520 254 184 207 215 145 400 80 40 40 680 280 40 450 450 620 580 269.199 225 230 160 450 85 45 42 797 292 45 500 500 680 640 293 217 240 254 178 500 90 50 45 885 305 50 Table 3 (continued) Unit is mm Nominal size Dn H2 H3 h4 H5 (H6) eh h1 h2 h3 P fixed Screw T T1 N 150 115 56.6 44.92 18.0 22.4 47.9 200 140 70.7 56.27 22.8 27.3 59.9 250 170 84.9 67.89 26.4 35.7 72.0 300 187 91.6 74.25 26.3 38.8 78.1 350 203 99.0 82.6 23.8 46.3 84.6 400 220 113.1 71.3 29.0 50.0 92.6 450 238 119.9 67.31 33.8 52.3 96.9 500 251 127.3 63.7 36.9 58.0 101.2 M6 M8 Nominal size Dn Solder foot height Z1 z2 Safe working load b θ=90°a θ=0° kN t kN t Calculate weight c Kg Type C 150 8 7 265 27 186 19 21 441 45 314 32 37 579 59 412 42 56 726 74 510 52 86 1040 106 736 75 127 1246 127 883 90 174 1599 163 1128 115 215 500 23 14 1942 198 1373 140 253 Aθ is the angle formed by the mooring lines of the roller guide cable (see Appendix A). b The safe working load (SWL) is based on the maximum load that the rope can withstand, and the angle formed by the rope through the roller is 90° (ie θ=90°) Calculated with a state of 180° (ie, θ = 0°). The safe working load is obtained in accordance with the assessment method in Appendix A and is for reference only. The safe working load can be adjusted according to the actual load situation. The actual marked safe working load should be the value agreed by both the manufacturer and the user. c Calculating the weight is for reference only. The unit is mm a 4-fixing screw. a) upper bushing a Lubrication tank. b) roller shaft Figure 8 C-type roller shaft and bushing detail The unit is mm Am × s screws. c) lower bushing Figure 8 (continued) Table 4 Dimensions of C-type roller shafts and bushings are in millimeters Nominal size Dn Roller shaft D1 d2 d3 d4 H h1 h2 h3 h4 h5 h6 h7 h8 h9 L R6 m1 150 81 105 81 55 138 21 117 200 102 135 102 70 168 26 142 250 119 155 119 80 203 31 172 300 130 175 130 95 226 37 189 350 152 190 152 110 247 42 205 400 164.200 164 125 270 47 223 450 179 220 179 140 293 52 241 500 195 235 195 156 311 57 254 M39 M52 M56 M64 M68 M76 M80 Table 4 (continued) Unit is mm Nominal size Dn Upper and lower bushings D4 D5 D6 D7 D8 h1 h2 t R1 m ×s 150 55 69 81 95 108 35 35 7 6 200 70 86 102 118 138 40 45 8 8 M6×20 250 80 97 119 136 158 50 300 95 114 130 149 178 55 350 110 130 152 172 193 60 400 125 145 164 184 205 65 450 140 160 179.199 223 70 500 156 178 195 217 238 75 M8×20

6 materials

Roller---The yield strength of the casting is not less than 205N/mm2, or the yield strength of the steel plate is not lower than 235N/mm2. Roller shaft---welding steel castings have a yield strength of not less than 350N/mm2 or equivalent. Bushing - brass or bronze or equivalent material.

7 structure

7.1 The roller of the cable guide (type C) shall be machined from steel or steel. 7.2 The base of the cable guide roller shall be determined by the shipyard and shall be in accordance with ISO 13767 and ISO 13776. In addition, the base and the hull are welded It is necessary to be able to ensure reliable transmission between the cable drum and the hull under maximum load without any plastic deformation or cracking.

8 Manufacturing and inspection

8.1 All surfaces of the cable guide rollers shall be free of visible imperfections and defects. 8.2 All surfaces in contact with the rope shall be smooth and free of burrs. 8.3 The outer surface of the cable guide roller should be coated with at least one anti-rust paint. 8.4 All rotating parts should be equipped with grease fittings.

9 mark

9.1 According to the requirements specified in IMOCircularMSC/Circ.1175, the cable guide roller is designed for safe working load (SWL) It should be marked on the towing and mooring layout used on board as a guideline for the master's operation. 9.2 The actual working load of the cable guide on the ship depends on the structural reinforcement of the installation below the deck. The safe working load (SWL) indicated in the belt and mooring layout shall not be greater than the actual safe working load. Actual safety worker The load shall not exceed the safe working load indicated in this standard. 9.3 The cable guide rollers shall clearly indicate the safe working load in a surfacing or equivalent manner. Safety work load sign should be in tons 1) (symbol The "t") is the unit and the position of the marker should not be obscured during the mooring operation. See Appendix NA for product markings. Example. SWL × × × t. 1) When actually marking, kN (kN) can be used according to the requirements of the relevant classification society, national legal measurement unit and users.

Appendix A

(informative appendix) Basis for strength assessment of cable guide rollers A.1 General The cable pulley strength is evaluated according to the theoretical calculation of the simply supported beam and is determined by the following design criteria. A.2 load The cable guide rollers should be designed to withstand the following load conditions (see Figure A.1). Description. P--- Mooring force and towing force acting on the mooring line where the diameter of the cable guide roller is the smallest. a The minimum diameter of the roller. Note. As shown in the figure, the calculation load refers to the case where the rope deviation by the cable guide roller is 180°. Figure A.1 Cable pulley calculation load A.3 Load and stress criteria Under the premise of safe working load (SWL). The bending stress does not exceed 85% of the yield strength of the material; The shear stress does not exceed 60% of the yield strength of the material. The synthetic stress does not exceed 100% of the yield strength of the material. A.4 Wear margin and corrosion allowance Wear allowance and corrosion margin are included in the safety factor. Appendix NA (informative appendix) mark NA.1 Model representation method The model of the guide roller model is as follows. Type (4.1) Nominal size (see Table 1, Table 3) NA.2 tag example The markings for Type A cable rollers with a nominal size of 350 are as follows. The markings for the C-type cable rollers with a nominal size of 450 are as follows. references [1] IACSURA2, Shipboardfittingsandsupportinghulstructuresassociatedwithtowingand Mooringonconventionalvessels [2] ISO 2408 Steelwireropesforgeneralpurposes-Minimumrequirements [3] ISO 4990 Steelcastings-Generaltechnicaldeliveryrequirements ......

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