Ships and Marine Technology — Ship's Mooring and Towing Fittings — Steel Rollers
1 Scope
This standard specifies the design, size and technical requirements for steel rollers.
This standard is applicable to the design, manufacture and acceptance of steel rollers.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 13767 Ships and Marine Technology — Ship's Mooring and Towing Fittings — Shipside Roller Fairleads
ISO 13776 Ships and Marine Technology — Ship's Mooring and Towing Fittings — Pedestal Fairleads
IMO Circular MSC/
Circ.1175 Guidance on Shipboard Towing and Mooring Equipment
3 Terms and Definitions
For the purposes of this document, the following terms and definitions apply.
3.1
safe working load (SWL)
maximum load, in kN, on the rope that should normally be applied in service conditions
4 Classification
4.1 Types
Depending on the construction, steel rollers shall be classified as the following three types:
Type A: made of steel casting without upper dust cover;
Type B: made of steel casting with upper dust cover;
Type C: made of steel plate with dust cover.
4.2 Nominal sizes
The nominal sizes of steel rollers are: 150, 200, 250, 300, 350, 400, 450 and 500.
The nominal sizes, Dn, are denoted by reference to the outside diameter of the roller in millimeters from a basic series of preferred numbers.
5 Dimensions
Steel rollers have dimensions and particulars in accordance with Tables 1, 2, 3 and 4, and Figures 1, 2, 3, 4, 5, 6, 7 and 8.
Dimensions in millimeters
a) Type A
Figure 1 Assembly of steel rollers for nominal sizes 150, 200 and 250 (type A and type B)
Dimensions in millimeters
b) Type B
Key:
1 — roller;
2 — axle;
3 — bush;
4 — dust cover to apply on type B only;
5 — N-M6 bolt.
a Drain hole.
Figure 1 (Continued)
Dimensions in millimeters
a) Type A
Figure 2 Assembly of steel rollers for nominal sizes 300 and above (type A and type B)
b) Type B
Key:
1 — roller;
2 — axle;
3 — bush;
4 — dust cover to apply on type B only;
5 — N-M6 bolt.
a Drain hole.
Figure 2 (Continued)
Dimensions in millimeters
Key:
1 — roller;
2 — dust cover to apply on type B only.
Figure 3 Detail of steel rollers for nominal sizes 150, 200 and 250 (type A and type B)
Key:
1 — roller;
2 — dust cover to apply on type B only.
Figure 4 Detail of steel rollers for nominal sizes 300 and above (type A and type B)
Table 1 Dimensions and SWL of steel rollers for type A and type B
Dimensions in millimeters
Nominal size Dn D1 D2 D3 D4 D5 R1 R2 R3 R4 H H1 H2 H3 H4 e
Table 1 (Continued)
Nominal size Dn h h1 h2 Set screw T T1 N Height of weld leg SWLb Calculated weightc
kg
θ = 90°a θ=0°
s z1 kN t kN t Type A Type B
a θ is the relative angle of ropes on the steel roller (refer to Annex A).
b The SWL is the maximum applicable rope tension based on 90° ( θ = 90°) and 180° ( θ = 0°) defection of rope direction by steel roller.
The SWLs shown in this table are for reference only. These are based on the loadings as mentioned in Annex A.
The “SWL” may be adjusted depending on the actual loading conditions, and the actual marking shall be as agreed between the user and the manufacturer.
c The calculated weight is for reference only.
a) Bush
Figure 5 Detail of axle and bush for steel rollers (type A and type B)
b) Axle
a Thread for grease nipple.
b Grease way.
Figure 5 (Continued)
Table 2 Dimensions of axle and bush for steel rollers (type A and type B)
Dimensions in millimeters
Nom. size Dn Axle Bush
d1 d2 d3 H h1 h2 h3 h4 h5 b m×d D4 D5 D6 H h5 h6 s
Key:
1 — roller;
2 — axle;
3 — upper bush;
4 — lower bush;
5 — N-M6 bolt.
Figure 6 Assembly of steel rollers for type C
Foreword II 1 Scope 2 Normative References 3 Terms and Definitions 4 Classification 5 Dimensions 6 Materials 7 Construction 8 Manufacturing and Inspection 9 Marking Annex A (Informative) Basis for Strength Assessment of Steel Rollers Annex NA (Informative) Marking Bibliography
ICS 47.020.50 U 21 GB 中华人民共和国国家标准 GB/T 36664—2018/ISO 13755:2012
船舶和海上技术 船舶系泊和拖带设备 导缆滚轮 Ships and marine technology—Ship’s mooring and towing fittings— Steel rollers (ISO 13755:2012,IDT)
2018-09-17发布 2019-04-01实施 国家市场监督管理总局 中国国家标准化管理委员会 发布 前 言 本标准按照GB/T 1.1—2009给出的规则起草。 本标准使用翻译法等同采用ISO 13755:2012《船舶和海上技术 船舶系泊和拖带设备 导缆滚轮》。 本标准做了下列编辑性修改: ——增加了资料性附录NA,对标记进行说明。 本标准由全国船舶舾装标准化技术委员会(SAC/TC 129)提出并归口。 船舶和海上技术 船舶系泊和拖带设备 导缆滚轮 1 范围 本标准规定了导缆滚轮的设计、尺寸和技术要求。 本标准适用于导缆滚轮的设计、制造和验收。 2 规范性引用文件 下列文件对于本文件的应用是必不可少的。凡是注日期的引用文件,仅注日期的版本适用于本文件。凡是不注日期的引用文件,其最新版本(包括所有的修改单)适用于本文件。 ISO 13767 船舶和海上技术 船舶系泊和拖带设备 舷边滚轮导缆器(Ships and marine tech-nology—Ship’s mooring and towing fittings—Shipside roller fairleads) ISO 13776 船舶和海上技术 船舶系泊和拖带设备 立式滚轮导缆器(Ships and marine tech-nology—Ship’s mooring and towing fittings—Pedestal fairleads) IMO Circular MSC/Circ.1175 船舶拖带和系泊设备指南(Guidance on shipboard towing and mooring equipment) 3 术语和定义 下列的术语和定义适用于本文件。 3.1 安全工作负荷 safe working load;SWL 在正常工作条件下系泊索允许承受的最大负荷,单位为千牛(kN)。 4 分类 4.1 类型 导缆滚轮按照结构型式分为以下三种: A型——无上层防尘盖铸钢导缆滚轮; B型——带上层防尘盖铸钢导缆滚轮; C型——带防尘盖钢板导缆滚轮。 4.2 公称尺寸 导缆滚轮的公称尺寸为150、200、250、300、350、400、450和500。 公称尺寸Dn为滚轮外直径最小处的尺寸,单位为毫米(mm)。 5 尺寸 导缆滚轮的具体尺寸及详图见表1、表2、表3、表4和图1、图2、图3、图4、图5、图6、图7、图8。
a) A型 图1 公称尺寸150、200、250的导缆滚轮装配图(A型与B型) 单位为毫米
b) B型 说明: 1——滚轮; 2——滚轮轴; 3——衬套; 4——防尘罩仅适用于B型; 5——N-M6螺栓。 a 流水孔。 图1(续)
a) A型 图2 公称尺寸300及以上的导缆滚轮装配图(A型与B型)
b) B型 说明: 1——滚轮; 2——滚轮轴; 3——衬套; 4——防尘罩仅适用于B型; 5——N-M6螺栓。 a 流水孔。 图2(续) 单位为毫米
表1(续) 公称尺寸Dn h h1 h2 固定螺丝 T T1 N 焊脚高度 安全工作负荷b 计算重量e kg θ=90°a θ=0° s z1 kN t kN t A型 B型
a θ是经过滚轮导缆的系泊索形成的夹角(参见附录A)。 b 安全工作负荷(SWL)是基于绳索处于可承受的最大负荷情况下,以绳索通过滚轮形成的夹角为90°(即θ=90°)与180°(即θ=0°)的状态来核算的。 安全工作负荷按照附录A的评定方法得出,仅供参考。 安全工作负荷可以根据实际的负荷情况进行调整,实际标示的安全工作负荷应是制造厂和使用方都认同的数值。 c 计算重量仅供参考。
a) 衬套 图5 导缆滚轮的滚轮轴及衬套详图(A型与B型)
b) 滚轮轴 a 注油嘴。 b 润滑槽。 图5(续) 表2 导缆滚轮的滚轮轴及衬套尺寸规格(A型与B型) 单位为毫米 公称尺寸Dn 滚轮轴 衬套 d1 d2 d3 H h1 h2 h3 h4 h5 b m×d D4 D5 D6 H h5 h6 s
表3(续) 公称尺寸Dn H2 H3 h4 H5 (H6) e h h1 h2 h3 P 固定螺丝 T T1 N s
公称尺寸Dn 焊脚高度 安全工作负荷b 计算重量c kg z1 z2 θ=90°a θ=0° kN t kN t C型
a θ是经过滚轮导缆的系泊索形成的夹角(参见附录A)。 b 安全工作负荷(SWL)是基于绳索处于可承受的最大负荷情况下,以绳索通过滚轮形成的夹角为90°(即θ=90°)与180°(即θ=0°)的状态来核算的。 安全工作负荷按照附录A的评定方法得出,仅供参考。 安全工作负荷可以根据实际的负荷情况进行调整,实际标示的安全工作负荷应是制造厂和使用方都认同的数值。 c 计算重量仅供参考。
a 4—固定螺钉。 a) 上衬套
a 润滑槽。 b) 滚轮轴 图8 C型的滚轮轴和衬套详图
a m×s螺钉。 c) 下衬套 图8(续) 表4 C型滚轮轴与衬套的尺寸规格 单位为毫米 公称尺寸Dn 滚轮轴 d1 d2 d3 d4 H h1 h2 h3 h4 h5 h6 h7 h8 h9 L R6 m1