GB/T 42799-2023 Ships and marine technology - Navigation and shallow-water engineering vessels - Anchor winches
1 Scope
This document specifies requirements for the design, construction, operation, safety, performance, and inspection rules of anchor winches.
It is applicable to anchor winches, with hydraulic or electric drive, installed at the stern of seagoing transport ships. It can be used as a reference for shallow-water engineering vessels and inland ships.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 20118-2017 Steel wire ropes for general purposes (ISO 2408:2017, NEQ)
ISO 3828 Shipbuilding and marine structures - Deck machinery - Vocabulary
ISO 4413 Hydraulic fluid power - General rules for the application of equipment to transmission and control systems
ISO 6482 Shipbuilding - Deck machinery - Warping end profiles
ISO 7825 Shipbuilding - Deck machinery - General requirements
IEC 60092 (all parts) Electrical installations in ships
IEC 60529 Degrees of protection provided by enclosures (IP Code)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 3828 and the following apply.
3.1 Technical terms
3.1.1
nominal size of anchor winches
represented by 1/10 of the weight (kg) of the ordinary stockless anchor applicable to anchor winches
3.1.2
working load of anchor winches; FW
maximum pull measured at the drum exit as the winch anchors at the nominal recovery speed with a rope wound on the drum in a single layer
3.1.3
nominal recovery speed
recovery speed measured when the pull of the anchor winch is the working load with a rope wound on the drum in a single layer
3.1.4
light line speed
recovery speed measured when the winch is bearing the pull not less than 25 % of the working load with a rope wound on the drum in a single layer
3.1.5
overload pull
maximum anchoring pull that the drum of the winch can bear for a short period of time
Note: Such pull is measured with a rope wound on the drum in a single layer.
3.2 Types of winches
3.2.1
left-hand anchor winch
winch where the reduction gear or drive of the drum is on the left-hand side of the drum, in relation to an observer situated on the side of the motor, power supply, or controller
Note: See Figure 1.
3.2.2
right-hand anchor winch
winch where the reduction gear or drive of the drum is on the right-hand side of the drum, in relation to an observer situated on the side of the motor, power supply, or controller
Note: See Figure 2.
4 Design and operation
4.1 General requirements
Anchor winches shall meet the general requirements for deck equipment in ISO 7825.
Note: Attention is drawn to the existence of safety regulations in certain countries and organizations affecting anchor winch controls.
4.2 Strength requirements
The strength of the component parts of the winch shall be capable of withstanding all loads of the respective nominal sizes of anchor winches as specified in Table 1 and Table 2.
4.3 Material stresses
4.4 Steel wire ropes
4.4.1 Construction of steel wire ropes
Steel wire ropes shall have the construction of applicable use. For design purposes, the drum shall be based on 6 × 36WS-IWRC or 6 × 41WS-IWRC steel rope manufactured from 1960 N/mm2 or 1770 N/mm2 tensile grade wire in accordance with of GB/T 20118-2017, A.10. The above requirement does not preclude the use of other types of rope in service.
4.4.2 Minimum breaking strength of steel wire ropes
The minimum breaking strength of steel wire ropes is 9~10 times the calculated value of the overload pull in 5.2.
4.5 Drum design
4.5.1 Drum diameter
The drum diameter shall be not less than 16 times the diameter of the design rope.
4.5.2 Drum capacity
The normal capacity is 110 m, and the high capacity is 200 m.
Note: It does not preclude the use of drums with other drum capacity in service.
4.5.3 Drum length
The drum length shall meet the following requirements.
a) The drum length of normal-capacity drums shall be such that the total length of the design rope can be accommodated in not more than five layers. The overload pull can at most be applied to the fourth layer.
b) The length of the running part of the drum shall be enough for winding of at least 10 turns on each layer.
4.5.4 Drum flange height
a) When all the rope is reeled on a drum, the flange shall project at least 1,5 times the rope diameter above the outermost layer.
b) When calculating the drum size, layers of rope shall be superimposed directly upon each other without a half rope diameter offset between adjacent layers.
4.5.5 Drum clutch
The clutch shall be mounted between the drum and drive equipment. It shall be provided with a reliable locking device; if it is power driven, the manually operated device shall be provided as well.
Standard
GB/T 42799-2023 Ships and marine technology―Navigation and shallow-water engineering vessels―Anchor winches (English Version)
Standard No.
GB/T 42799-2023
Status
valid
Language
English
File Format
PDF
Word Count
7500 words
Price(USD)
225.0
Implemented on
2024-3-1
Delivery
via email in 1~3 business day
Detail of GB/T 42799-2023
Standard No.
GB/T 42799-2023
English Name
Ships and marine technology―Navigation and shallow-water engineering vessels―Anchor winches
GB/T 42799-2023 Ships and marine technology - Navigation and shallow-water engineering vessels - Anchor winches
1 Scope
This document specifies requirements for the design, construction, operation, safety, performance, and inspection rules of anchor winches.
It is applicable to anchor winches, with hydraulic or electric drive, installed at the stern of seagoing transport ships. It can be used as a reference for shallow-water engineering vessels and inland ships.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 20118-2017 Steel wire ropes for general purposes (ISO 2408:2017, NEQ)
ISO 3828 Shipbuilding and marine structures - Deck machinery - Vocabulary
ISO 4413 Hydraulic fluid power - General rules for the application of equipment to transmission and control systems
ISO 6482 Shipbuilding - Deck machinery - Warping end profiles
ISO 7825 Shipbuilding - Deck machinery - General requirements
IEC 60092 (all parts) Electrical installations in ships
IEC 60529 Degrees of protection provided by enclosures (IP Code)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 3828 and the following apply.
3.1 Technical terms
3.1.1
nominal size of anchor winches
represented by 1/10 of the weight (kg) of the ordinary stockless anchor applicable to anchor winches
3.1.2
working load of anchor winches; FW
maximum pull measured at the drum exit as the winch anchors at the nominal recovery speed with a rope wound on the drum in a single layer
3.1.3
nominal recovery speed
recovery speed measured when the pull of the anchor winch is the working load with a rope wound on the drum in a single layer
3.1.4
light line speed
recovery speed measured when the winch is bearing the pull not less than 25 % of the working load with a rope wound on the drum in a single layer
3.1.5
overload pull
maximum anchoring pull that the drum of the winch can bear for a short period of time
Note: Such pull is measured with a rope wound on the drum in a single layer.
3.2 Types of winches
3.2.1
left-hand anchor winch
winch where the reduction gear or drive of the drum is on the left-hand side of the drum, in relation to an observer situated on the side of the motor, power supply, or controller
Note: See Figure 1.
3.2.2
right-hand anchor winch
winch where the reduction gear or drive of the drum is on the right-hand side of the drum, in relation to an observer situated on the side of the motor, power supply, or controller
Note: See Figure 2.
4 Design and operation
4.1 General requirements
Anchor winches shall meet the general requirements for deck equipment in ISO 7825.
Note: Attention is drawn to the existence of safety regulations in certain countries and organizations affecting anchor winch controls.
4.2 Strength requirements
The strength of the component parts of the winch shall be capable of withstanding all loads of the respective nominal sizes of anchor winches as specified in Table 1 and Table 2.
4.3 Material stresses
4.4 Steel wire ropes
4.4.1 Construction of steel wire ropes
Steel wire ropes shall have the construction of applicable use. For design purposes, the drum shall be based on 6 × 36WS-IWRC or 6 × 41WS-IWRC steel rope manufactured from 1960 N/mm2 or 1770 N/mm2 tensile grade wire in accordance with of GB/T 20118-2017, A.10. The above requirement does not preclude the use of other types of rope in service.
4.4.2 Minimum breaking strength of steel wire ropes
The minimum breaking strength of steel wire ropes is 9~10 times the calculated value of the overload pull in 5.2.
4.5 Drum design
4.5.1 Drum diameter
The drum diameter shall be not less than 16 times the diameter of the design rope.
4.5.2 Drum capacity
The normal capacity is 110 m, and the high capacity is 200 m.
Note: It does not preclude the use of drums with other drum capacity in service.
4.5.3 Drum length
The drum length shall meet the following requirements.
a) The drum length of normal-capacity drums shall be such that the total length of the design rope can be accommodated in not more than five layers. The overload pull can at most be applied to the fourth layer.
b) The length of the running part of the drum shall be enough for winding of at least 10 turns on each layer.
4.5.4 Drum flange height
a) When all the rope is reeled on a drum, the flange shall project at least 1,5 times the rope diameter above the outermost layer.
b) When calculating the drum size, layers of rope shall be superimposed directly upon each other without a half rope diameter offset between adjacent layers.
4.5.5 Drum clutch
The clutch shall be mounted between the drum and drive equipment. It shall be provided with a reliable locking device; if it is power driven, the manually operated device shall be provided as well.
