This standard specifies the product classification, marking, technical requirements and test methods for rescue boat winches. This standard applies to winches used for launching, collecting and capsizing rescue boats of hand-cranked and gravity-type (mechanical energy storage) rescue boat davits. The prime movers of the winches can be electric, hydraulic or pneumatic. It also applies to winches used for launching, collecting and capsizing lifeboats and rescue boats. GB 11626-1989 Rescue Boat Winch GB11626-1989 Standard Download Decompression Password: www.bzxz.net

National Standard of the People's Republic of China
Rescue boat winch
Subject content and scope of application
This standard specifies the product classification, marking, technical requirements and test methods of rescue boat winches. GB11626-89
This standard applies to winches for launching, collecting and capsizing rescue boats of hand-cranked and gravity-type (mechanical energy storage) rescue boat davits. The prime movers of the winches can be electric, hydraulic or pneumatic. It is also applicable to winches for launching, collecting and capsizing lifeboats and rescue boats. 2 Reference standards
GB3893
Terms and terms for ship deck machinery
GB1102
Round strand wire rope
GB 4208
Classification of enclosure protection levels
GB2346
Hydraulic and pneumatic systems and components
Nominal pressure series
GB3766
CB*3341
3 Terms
General technical conditions for hydraulic systems
Model writing method for deck machinery products
3.1 Working load Qworkingload
Refers to the maximum tension on the wire rope on the drum when launching, retrieving and the davit is tipped in or out. 3.2 Test holding load Test holding load refers to the static load that can be braked by the winch brake device, and its value is 1.5 times the working load. 3.3 Dynamic braking load dynamic braking load refers to the load on the winch drum when the rescue boat is fully loaded with personnel and stops at the speed required by 5.1.2. 3.4 Hoisting load Q: hoisting load
refers to the load on the winch drum when the rescue boat is fully loaded with persons and accessories (or the limited number of persons and accessories when the lifeboat also serves as a rescue boat) and is hoisted.
3.5 Governor setting load Q2brake setting load refers to the load on the winch drum when the rescue boat is fully loaded with persons and accessories and is lowered. 3.6 Stowing load Q3stowing load
refers to the maximum load on the winch drum when the rescue boat is only carrying two persons and the davit is flipped in. 3.7 Nominal size
The nominal size corresponds to the working load and its value is expressed in dry Newtons. 3.8 Right-hand and left-hand winches right-hand and left-hand winches The observer stands at the rope outlet of the winch, facing the winch. The winch with the brake on the left side of the winch is a left winch, and the winch with the brake on the right side of the winch is a right winch.
Approved by the State Administration of Technical Supervision on September 21, 1989 504
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Implementation on April 1, 1990
4 Product classification
GB11626-89
Rescue boat winches are divided into the following types according to the installation method: Type A - Vertical type
Installed on the base of the boat deck
4.2 The basic parameters of the rescue boat winch are shown in the table below: Nominal specifications
Working load
Test support load
B Model - Back-end model
Installed on the davit
Minimum breaking load of wire rope
Recommended wire rope diameter
Note: ①Minimum breaking load of wire rope and recommended wire rope diameter in the table refer to the single wire rope data when the winch uses two wire ropes to lift the boat. ②For those with * in the table, the nominal tensile strength of the wire rope is 1520N/mm2, and the others are 1670N/mm2. 4.3 Product marking:
4.3.1 The method of writing product model shall comply with CB"3341 regulations. 4.3.2 Composition of product marking:
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4.3.3 Marking example:
Rescue boat winch
GB 11626--89www.bzxz.net
Working load is 25kN, A type left, electric rescue boat winch. Rescue boat winch DA25ZGB11626-89
5 Technical requirements
5.1 Performance
5.1.1 The winch should be able to lift the lifting load Q at a boat speed of not less than 0.3m/s. Standard number
Yi Left
Feature code {Y
【Right
Nominal specification
Type code
-Drive form code
Product name
5.1.2 The winch should be able to lower the speed governor set load Q2 under gravity at a speed not less than the speed obtained by the following formula. s = 0. 4+ (0. 02 × H)
Where .8 The lowering speed of the rescue boat, m/s;
H--the distance from the top of the davit to the lightest loaded navigation waterline, m. 5.1.3 After considering the design of the rescue boat, the protection devices for the occupants to prevent excessive forces and the strength of the launching device taking into account the inertia force during emergency braking, the launching equipment should take certain other measures to ensure that the lowering speed shall not exceed the maximum lowering speed established by the competent authority.
Note: The boat speed can be achieved by a single pulley or a compound pulley. 5.2 Material stress
It should be ensured that the strength of each part of the winch can withstand various loads including dynamic braking loads, and its value shall not be less than 2Q. Calculated based on the working load, the stress of the parts shall not exceed the tensile strength of the material divided by 4.5. 5.3 Drum design
5.3.1 The rescue boat winch can be designed as a double-section drum or two separate drums. For the drum type, when designing two drums, it is necessary to ensure that the double ropes are raised and lowered synchronously. 5.3.2 The length of the drum should be able to meet the requirement that all the wire ropes are wound up to no more than three layers. All the wire ropes must be wound evenly, and the outer layer of wire ropes shall not exceed two-thirds of the total length of the drum. The single-sided angle of the wire rope out of the drum shall not be greater than 5° for the grooved single-layer drum, and shall not be greater than 3° for other structural types
5.3.3 The drum diameter shall not be less than 16 times the diameter of the wire rope. 5.3.4 When all the wire ropes are evenly wound on the drum, the flange height must be higher than the outermost layer of the wire rope by 1.5 times the wire rope diameter. 5.4 Braking device design
5.4.1 Support brake device
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GB11626-89
The support brake device of the winch should be able to brake the test support load and also safely brake the dynamic brake load. Various manual brake device controls must be in the braking state, and the brakes can only be released when the operator operates the brake device on the deck or inside the boat. 5.4.2 Speed ​​regulating device
The winch should be equipped with a speed regulating device to adjust the lowering speed of the winch. 5.5 Manually operated boat retrieval
5.5.1 Various winches must be equipped with manual boat retrieval equipment. This equipment may include one or two handles or handwheels, suitable for two people to operate. 5.5.2 The handle or handwheel should not rotate when the boat is lowered or the boat is raised by power. 5.5.3 During continuous manual operation, the force at a radius of 400mm shall not exceed 160N. The force is allowed to be greater than 160N when the boat capsizes. 5.5.4 There must be measures to manually loosen the wire rope. 5.6 Wire rope
Wire ropes shall be galvanized and fiber-core steel ropes in GB1102, with a nominal tensile strength of 1520N/mm or 1670 N/mm2.
Table 13 (6×19) of GB1102 is only applicable to small winches with a wire rope diameter of less than or equal to 11mm. Wire ropes in Table 14 (6×37) of GB1102 shall be used as much as possible, and the minimum breaking load of the wire rope shall not be less than 6 times the working load. Note: The requirements do not exclude other wire ropes that meet recognized standards. 5.7 Control and drive mode
5.7.1 The control mode shall be able to be manually operated on site or, at the request of the ordering party, manually operated in the boat to support the brake device. 5.7.2 Power source
The prime mover of the winch may be electric, hydraulic or pneumatic. 5.7.3 Marking of operating equipment
Various control handles, hand wheels, buttons or joysticks should be clearly marked with permanent markings to indicate their purpose and operation method. In addition to those that are obvious at a glance, the direction of manual boat retrieval should be clearly marked. 5.7.4 Automatic parking
Various operating mechanisms for launching and power boat retrieval should be able to return to the "stop" position. 5.8 Driving equipment
5.8.1 Electric driving and control equipment should comply with the relevant provisions of my country's steel ship specifications, and the protection level of deck fixed equipment should comply with the IP33 provisions of GB4208.
5.8.2 Hydraulic driving and control equipment should comply with the provisions of GB3766, the system rated pressure should be selected from GB2346, and the driving device should operate satisfactorily at a pressure less than 10% lower than the rated pressure and comply with 5.1.1 performance requirements. 5.8.3 Pneumatic drive and control equipment shall comply with the provisions of relevant current standards and technical conditions. The system rated pressure shall be selected from GB2346, and the drive device shall operate satisfactorily at 10% lower than the rated pressure and meet the performance requirements in 5.1.1. 6 Test method
6.1 No-load test
Test the winch without wire rope for 10 minutes, and check the setting of the starting, stopping and limit protection devices. 6.2 Lifting test
Lift the load to 15m, and equivalent loads and speeds are also allowed. Make the following records during the test: a. Oil sealing condition;
b. Input power;
Lifting speed on each drum;
Correct action of the brake;
Interlocking condition of manual and power drive.
6.3 Lowering test
GB 11626-89
With Q2 load, 15m above the ground, carry out lowering test according to the requirements of 5.1.2. Equivalent load and speed are also allowed. Brake at least twice during lowering. Make the following records during the test:
a. Lowering speed;
b. Braking condition;
c. Interlocking condition between manual drive and gravity lowering. 6.4 Support brake device test
Use the test support load to check the support brake device. When the outermost wire rope is loaded to 1.5Q, the drum should not rotate. It is also necessary to test that the drum is relaxed and rotated slowly for one circle, and the load can still be braked by the brake device. 6.5 Onboard test
The winch is tested with the lifting load Q, and the lowering test is carried out with the speed governor set to the load Q2. Inspection rules
Each winch shall be inspected before leaving the factory according to the following items: 7.1
No-load inspection according to Article 6.1;
Lifting inspection according to Article 6.2;
Descending inspection according to Article 6.3.
Winches shall be inspected in the following cases: 7.2
Trial production of new products;
Inspection every three years.
7.3 Type inspection items:
Appearance inspection;
No-load inspection according to Article 6.1;
Lifting inspection according to Article 6.2;
Descending inspection according to Article 6.3;
Support brake device inspection according to Article 6.4. During the test, the oil temperature shall not exceed 60℃, and the bearing temperature shall not exceed 75℃. After all tests are completed, the winch shall be disassembled for inspection. Marking, packaging, transportation and storage
8.1 Marking
Each winch should have a durable, non-corrosive and non-falling nameplate, which should clearly indicate the following: winch name;
Manufacturer name;
Product mark;
Manufacturing date;
Factory number;
Working load;
Lifting speed;
Lowering speed;
Rope capacity of reel:
Total machine weight;
Ship inspection mark.
8.2 Packaging
The winch should be properly packaged. The packaging box should be accompanied by product certificates, operating instructions, ZC marine product certificates, spare parts lists, packing lists, etc. 508
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8.3 Transportation
GB11626-89
Winches should avoid collision during transportation, and winches cannot be transported upside down. 8.4 Storage
Winches should be stored in a dry place during storage; a.
Storage period exceeds one year, winches should be re-oil sealed. b.
Additional instructions:
This standard is proposed by China State Shipbuilding Corporation. This standard is under the jurisdiction of the Deck Machinery Subcommittee of the National Ship Standardization Technical Committee. This standard is drafted by the 704th Institute of the 7th Research Institute of China State Shipbuilding Corporation. The main drafter of this standard is Wang Shengyi
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