This standard specifies the product classification, technical requirements, test methods and inspection rules for marine cable open block. This standard applies to marine cable guide blocks. CB/T 369-1995 Cable open block CB/T369-1995 Standard download decompression password: www.bzxz.net

Shipbuilding Industry Standard of the People's Republic of China
CB/T369-1995
Wire rope opening
1995-12-19 Issued
1996-08-01 Implementation
China State Shipbuilding Corporation
Shipbuilding Industry Standard of the People's Republic of China
1 Subject content and scope of application
CB/T369-1995
Classification number: U24
Generation police CB369-64
This standard specifies the product classification, technical requirements, test methods and inspection rules of ship wire rope opening pulleys (hereinafter referred to as pulleys). This standard applies to pulleys with ship wire rope guides. 2 Product classification
Types and parameters are as shown in Table 1.
Single-piece pulley with rolling bearing Long ring type block Single block with rolling bearing Hook type block Single block with sliding bearing Long ring type block Single block with sliding bearing Hook type block 2.2 Structural type and basic dimensions
Safe working load, kN
2.2.1 The structural type and basic dimensions of KGC type and KGG type block are as shown in Figure 1 and Table 2. Approved by China State Shipbuilding Corporation on December 19, 1995 50|| tt||1996-08-01 implementation
KGC type
CB/T369—1995
KGG type
1-long ring, 2-crossbeam, 3-hexagonal nut; 4-split pin; 5-round nut; 6-pulley; 7-stop pin; 8-round nut; 9-stop washer, 10-pulley shaft; 11-oil retaining ring; 12-bearing; 13-left pulley Plate; 14 Left guard plate; 15- fixed distance tube: 16 fixed distance bolt: 17- hexagonal nut: 18- elastic washer: 19- right pull plate: 20 right guard plate: 21- pull pin: 22 movable guard plate; 23- oil cup; 24- movable pull plate; 25- hook 2.2.2 The structural type and basic dimensions of KHC type and KHG. type pulleys are as shown in Figure 2 and Table 2. KHC type
CB/T369- 1995
KHG type
1--Long ring: 2-beam; 3-hexagonal nut; 4--split pin; 5-round nut; 6-pulley: 7-stop pin: 8-round nut; 9-stop pad 10-pulley shaft; 11-bushing, 12-left pull plate: 13-left guard plate; 14-distance tube: 15-distance filling bolt 16-hexagonal nut; 17-spring washer; 18-right pull plate; 1 9—right guard plate; 20—axle pin; 21—movable guard plate; 22—oil cup; 23—movable pull plate; 24—hook
Maximum
Safe working load of steel cable
2.3 Marking example
386|420/165/108120150
5255312151321602003
6096 35265155200
727786315162240
370212280355
M24×2
M39×3
M45×3
4152303204007051
Safe working load 10kN, single pancake pulley with rolling bearing long ring pulley. Pulley KGC10CB/T369--1995
66163109335
7217311638555
Weight, kg
3 Technical requirements
3.1 The materials of the main parts of the pulley shall comply with the requirements of Table 3. Part name
National nut
Right pull plate
Movable pull plate
Pulley shaft
Left pull plate
Pulley body
Pulley bushing
CB/T369-1995
High-quality carbon steel
Ordinary carbon steel
Alloy structural steel
Cast steel or ductile iron
Copper alloy
3.2 The raw materials entering the factory should have a certificate of conformity. Material
Q235-AZ
ZG230-450
or QT500-7
ZCuA19Mn2
or QA19-2
3.3 The surface of the parts should be free of burrs, cracks, rust and other defects that affect the strength. The outer sharp edges of the parts should be rounded. Standard number
GB699—88
G B700—88
GB3077—88
GB1348-88
or GB5676—85
GB1176—87
or GB4429—84
3.4 ​​The machined surface of the casting shall not have defects such as sand holes, pores, shrinkage holes, cracks and looseness, and the non-machined surface shall not have defects that affect the strength. 3.5 The surface of the forging shall be smooth and shall not have burrs, cracks, folds, overburning and other local defects that reduce the strength, and defects are not allowed to be welded. The forged parts must be heat treated. 3.6 The pulley shaft must be quenched and tempered, and its hardness is HB217~255. 3.7 The hook must be normalized.
3.8 The non-friction surface of the parts should be painted, and the friction surface should be greased. 3.9 After the pulley is assembled, check the movable parts such as the pulley, long ring or hook. The rotation must be flexible and there must be no jamming. 3.10 The pulley should be subjected to a static load test with a test load of 4 times the safe working load. 4'Test methodbzxz.net
The pulley should be subjected to a static load test according to the test load and loading method specified in Table 4. The test load time shall not be less than 5 minutes. After unloading, check each load-bearing part. No permanent deformation or any defects shall occur. 5
Test loading method
Safe working load
Test load
Inspection rules
CB/T369-1995
Each pulley must be inspected by the product quality inspection department of the manufacturer in accordance with the technical requirements of this standard. After the product is qualified, it can be shipped after verification by the ship inspection department, and a product certificate of conformity and a ship inspection certificate shall be issued. Marking, packaging and storage
Each block shall have a product label, on which the following information shall be indicated: a.
Product name;
Product mark;
Safe working load;
Maximum diameter of the wire rope;
Manufacturer name or mark;
Date of manufacture.
6.2 Each block shall have a ship inspection seal on the shell. 6.3 Packaging and storage
Product packaging must be firm, with moisture-proof measures, and able to meet the requirements of multiple loading and unloading and long-distance transportation. The block must be stored in a ventilated and dry room.
Additional instructions:
This standard was proposed by the National Technical Committee for Ship Equipment Standardization. This standard is under the jurisdiction of Jiangnan Shipyard.
This standard was drafted by Guangdong Chaoyang Ship Parts Factory, Jiangnan Shipyard, and Changshu Hoisting Machinery Factory. The main drafters of this standard are Xie Maocong, Zhou Qinting, Zhang Lingying, Tong Zirong and Shen Maolin.
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