GB/T 36664-2018Ships and marine technology - Ship's mooring and towing fittings - Steel rollers (English PDF)

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.

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

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

theta=90°a theta=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

Atheta 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 theta=90°)

Calculated with a state of 180° (ie, theta = 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 bmxd 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

M10x

M16x

M20x

M24x

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

theta=90°a theta=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

Atheta 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 theta=90°)

Calculated with a state of 180° (ie, theta = 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 x 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 xs

150 55 69 81 95 108 35 35 7 6

200 70 86 102 118 138 40 45 8 8

M6x20

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

M8x20

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

8 Manufacturing and inspection

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 x x x 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