CB/T 3282-2001 Flat friction watertight upper rudder bearing CB/T3282-2001 Standard download decompression password: www.bzxz.net

ICS47.020.50
Registration No.: 9830-2002
Ship Industry Standard of the People's Republic of China
CB/T3282-2001
Replaces CB*3282-87
Plane frictional watertight rudder carriers
Plane frictional watertight rudder carriers2001-11-15 Issued
Issued by the Commission of Science, Technology and Industry for National Defense
Implemented on 2002-02-01
CB/T3282-2001
This standard is a revision of CB*3282-87 "Plane frictional watertight rudder carrier". This standard retains the original hinged bolt type and adds the stop block type. In order to avoid direct wear of the energy rod, the bushing diameter is increased, the dust shield is improved, and it has the function of preventing lubricating oil from overflowing, and it is renamed as oil shield. This standard replaces CB*3282-87 from the date of entry into force. This standard is proposed by China State Shipbuilding Corporation. This standard is under the jurisdiction of Jiangnan Shipyard (Group) Co., Ltd. The main drafting unit of this standard: China Shipbuilding Industry Industry 708 Research Institute. The main drafters of this standard: Tang Jianliang, Zhu Quanxin. This standard was first issued in February 1987.
1 Fan Guo
CB/T3282-2001
Flat friction watertight upper rudder bearing
This standard specifies the classification, requirements, test methods, inspection rules, marking, packaging and transportation of flat friction watertight upper rudder bearings (hereinafter referred to as upper rudder bearings).
The upper rudder bearings specified in this standard are applicable to large and medium-sized ships. The upper rudder bearing must be installed above the maximum draft of the ship's rolling part. 2
Cited Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T699-1999 High-quality carbon structural steel
GB/T700-198B Carbon structural steel
GB/T1176-1987 Technical conditions for cast copper alloys GB/T1220-1992 Stainless steel bars
GB/T3521.1-1992
Dimension series and tolerances of O-shaped rubber sealing rings for hydraulic and pneumatic use 3 Classification
3.1 The upper rudder bearing is divided into type A and type B according to the way the lateral force is borne. Type A - the lateral force is borne by the hinged bolt. Type B - the lateral force is borne by the stop block.
The structural type and basic dimensions of the 3.2A type upper rudder bearing are shown in Figure 1, Table 1 and Table 2. 1
CB/T3282-2001
1-Capacity bearing: 2-Capacity bearing body: 3-Tubular oil cup: 4 Oil cup: 5-Oil drain plug: 6-Body connection screws and nuts: 7-Capacity bearing connection bolts and nuts: 8-Gland bolts and nuts: 9-Oil baffle: 10-Friction plate: 11-Oil filling joint: 12-Bushing: 13- Oil retaining ring: 14-Fire cover: 15-Watertight packing: 16-Bracket connection explosion detection and nut: 17-Wear indicator: 18-Key Figure 1 A type upper bearing structure type
CB/T3282-2001
Basic size (1)
Maximum allowable
Lateral force
Bushing)
CB/T3282-2001
Basic size (2)||tt| |Can bear connecting bolts
Hinged bolts
Hinged bolts
Main body connection
Can bear frame connection
Connecting bolts
Note: The weight in the table is the weight that type A can bear, and the weight that type B can bear is about 3% higher4
bxhxixt
45x25x80x12.2
45x25x90x22.2
50x28 x100x13.5
60x32×100×15.5
60x32×110x15.5
60x32x120x15.5
60 x32x110×15.5
60x32×130x15.5
70x36x130x17.5
70x36x140x17.5
70x36x150x17.5
80x40x150x19.5
70×36x160×19.5
B-type stop block
60x30×20
75x30×24
85x30x24
85x40x26
90x10×26
90×50X30||tt| |95x50x30
100x60x32
100×60×40
100x70x42
110×70x42
CB/T3282-2001
3.3 The structural type and basic dimensions of the B-type upper bearing are shown in Figure 2, Table 1 and Table 2.16
1-Bearing frame, 2-Bearing body; 3-Tubular oil cup: 4 Oil cup; 5 - Drain plug: 6- Body connection bolts and nuts: 7- Bearing connection bolts and nuts: 8- Cover bolts and nuts: 9- Oil baffle plate; 10- Friction plate: 11- Oil filling joint: 12 Bushing: 13- Oil baffle: 14- Cover: 15- Watertight packing: 16- Bearing frame connection bolts and nuts: 17- Wear indicator: 18- Key: 19- Stop block Figure 2B type upper bearing structure type
3.4 ​​Marking example: www.bzxz.net
CB /T3282-2001
The A-type plane friction watertight upper rudder bearing with a nominal diameter of 200Ⅲ is marked as: Upper rudder bearing A200
CB/T3282-2001
The B-type plane friction watertight upper rudder bearing with a nominal diameter of 400mm is marked as: CB/T3282-2001
Upper rudder bearing B400
4 Requirements
The materials of the main parts of the upper bearing are shown in Table 3.
Table 3 Materials of main parts
Parts name
Bearing body, rudder bearing frame
Friction plate, bushing
Watertight packing
Oil baffle plate, oil drain plug
Injection joint
Bearing connecting bolts and nuts
Body connecting bolts and nuts
Bearing frame connecting bolts and nuts
Stop block
Gland bolts and nuts
Oil baffle ring
Cast steel for hull structure
Cast steel for ship structure|| tt||Cast bronze
Oil-impregnated asbestos rope
Aluminum bronze
High-quality carbon steel
Stainless steel
High-quality carbon steel
O-type rubber sealing ring
ZCuSn10Zn2
Q235-A
ZCuAe9Mn2
The chemical composition and mechanical properties of steel castings for hull structure are shown in Table 4 and Table 5 Table 4 Chemical composition of steel castings for hull structure Chemical composition, rabbit
The manganese content should not be less than 3 times the actual carbon content. Material
Standard No.
GB/T1176-1987
GB/T700-1988
GB/T1176-1987
GB/T699-1999
GB/T1220-1992
GB/T699-1999
GB/T3452.1-1992
Residual elements
Tensile strength“
≥400
CB/T3282-2001
Table 5 Mechanical properties of steel castings for hull structure Pressure yield point'
≥200
Elongation||tt| |Shrinkage rate
4.3 Steel castings should not have shrinkage cavities, pores, cold shuts, cracks and other defects that affect strength. For surface defects that do not affect strength, electric welding repair is allowed, but it must comply with the repair requirements of relevant standards and specifications for steel casting defects. All castings should be annealed or normalized.
4.4 The surface of the parts should be smooth and no cracks, burrs, marks or other appearance defects are allowed. 4.5 The contact surfaces of the two halves of the rudder bearing body should be scraped flat, and there should be no oil leakage after the two halves are connected with bolts. 4.6 After the upper bearing is assembled, the pointer on the wear indicator should point to zero. 4.7 When the upper bearing is automatically lubricated by a lubricating oil pump, the oil cup can be eliminated and replaced with an oil pipe joint at that location. 4.8 After the upper bearing is qualified in the inspection, the outer surface shall be manually derusted and painted with rust-proof primer twice. 5 Test method
5.1 Check the factory inspection report of the steel casting. If necessary, the test bar can be retested. Its chemical composition and mechanical properties shall meet the requirements of 4.2.
5.2 Perform visual inspection. The results shall meet the requirements of 4.3, 4.4 and 4.6. 5.3 Use measuring tools to measure the main dimensions of the upper bearing. The results shall meet the requirements of 3.2 and 3.3. 5.4 After the two halves of the bearing body are connected with bolts, the oil tank is filled with lubricating oil. After 2 hours, check the connection seam. The results shall meet the requirements of 4.5.
6 Inspection rules
6.1 Inspection classification
The inspection of the upper bearing is divided into type inspection and factory inspection. 6.2 Type inspection
Type inspection shall be carried out in any of the following cases: 6.2.1
a) First-made product:
b) Major changes in design structure that may affect product performance: c) Product transfer to another factory:
When the quality supervision department requires it.
Type inspection items shall be in accordance with Table 6.
Table 6 Inspection Items
Inspection Items
6.3 Judgment Rules
Inspection Report
Test Rod Test
Chapter No. of Requirement
4.1, 4.2
4.3, 4.4 and 4.6
3.2, 3.3
Chapter No. of Inspection Method
Type Inspection
Factory Inspection
CB/T3282-2001
If all the inspection items of the type inspection of the upper rudder bearing meet the requirements, it can be considered that the type inspection has passed. If there are items that do not meet the requirements, it is allowed to be re-inspected after repair. If the re-inspection meets the requirements, it can be considered that the type inspection has passed. 6.4 Factory Inspection
6.4.1 The inspection items of the factory inspection are shown in Table 6. 6.4.2 The upper bearings should be inspected for factory inspection one by one. 6.4.3 If all the items of the factory inspection of the upper rudder bearing meet the requirements, the upper rudder bearing is considered to have passed the factory inspection. If there are items that do not meet the requirements, it is allowed to be repaired and re-inspected. If the re-inspection meets the requirements, the upper rudder bearing is considered to have passed the factory inspection. If the re-inspection fails, it cannot be shipped. 6.4.4 After the upper rudder bearing passes the inspection, the inspection department shall issue a certificate of conformity. 7 Marks
The following product marks shall be indicated in the obvious parts of the product: a) Manufacturer name or trademark:
b) Product name;
c) Product mark:
d) Manufacturing date or production batch number:
e) Inspection pass stamp.
Packaging and transportation
8.1 Before packaging the product, the surface of the rotating parts shall be protected with oil seals. 8.2 The product must be wrapped with clean packaging cloth or plastic cloth before being packed into a frame wooden box or pallet. 8.3 The product should be accompanied by a product inspection certificate and a packing list when leaving the factory. 8.4 Measures should be taken to prevent rain, impact and wear of slings during transportation.
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