CB/T 431-2000 Anchor rod CB/T431-2000 standard download decompression password: www.bzxz.net

ICS 47. 020. 50
Registration No.: 77082000
Ship Industry Standard of the People's Republic of China
CB/T431-2000
Replaces CB431-66
Derrick boom for anchor
Published on September 20, 2000
Commission of Science, Technology and Industry for National Defense
Implemented on January 1, 2001
CB/T431-2000
This standard is a revision of CB431-66 "Derrick boom". The main contents of this revision are: 1. Added materials, including aluminum paste copper and stainless steel in addition to carbon structural steel. 2. The types have been increased, that is, the single steel pipe structure has been expanded to an I-beam structure suitable for hanging anchors and other items, and the types have been increased from the original 2 to 3.
3. The specifications have been increased, from the original 7 specifications with a working load of 100~1000kg to 18 specifications with a working load of 100~1500kg.
4. The structure that is easy to maintain and rotate around the column has been added. This standard replaces CB431-66 from the date of implementation. This standard is proposed by the National Technical Committee for Standardization of Ships and Boats. This standard is under the jurisdiction of Jiangnan Shipyard (Group) Co., Ltd. The drafting unit of this standard: China Shipbuilding. The main drafters of this standard: Song Ren and Li Fu. This standard was first issued in 1960 and revised for the first time in March 1966 (also replacing CB181~18360). 1 Specification
CB/T431—2000
Anchor rod
This standard specifies the classification, requirements, test methods, inspection rules, marking, packaging and transportation of anchor rods. This standard is mainly applicable to the design, manufacture and acceptance of lifting rods for lifting anchors, and also to lifting rods for lifting other objects. 2 Reference 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
GB/T6388-1986
GB/T81621999
High-quality carbon structural steel
Transport packaging delivery and receipt marks
Structural seamless steel pipes
GB/T13384-1992 General technical conditions for packaging of electromechanical products 3 Classification
3.1 Classification
3.1.1 See Table 1 for the types of anchor rods.
Table 1 Types of anchor rods
Steel pipe curved anchor rod
Steel pipe boom staggered anchor rod
I-beam anchor rod
Rated load kg
100~400
4001500
400~1500
CB/T-4312000
3.1.2 The structural type and basic dimensions of type A anchor rods are shown in Figure 1 and Table 2.B
Rated load kg
Rated load kg
Top view of base
Maximum load|| tt||1 pull ring 2 a lifting ring, 3 a guide pulley: 4 a ram; 5 a suspension rod; 6 an upper bearing; 7- steel bushing; 8- base; 9 a suspension rod: 10- lower bearing: 11 a cushion block Figure 1 A-type anchor rod
Basic dimensions of A-type anchor rod
Weight kg
CB/T431-2000
3.1.3 The structural type and basic dimensions of B-type anchor rod are shown in Figure 2 and Table 32
Enlargement garden
Dai Da Ge
1 an angle plate; 2 a suspension arm: 3-ram horn: 4 a column; 5 a square steel step, 6 a reinforcement seat 7 a rotating block; 8 sleeve 9-locating pin; 10-eye plate; 11-rotating seat Figure 2 B-type anchor rod
Table 3 Basic dimensions of B-type anchor rod
Rated load
B Commercial expansion
Enlargement
Weight kg
CB/T·4312000
3.1.4 The structural type and basic dimensions of C-type anchor rod are shown in Figure 3 and Table 45
1-weight eye plate; 2-movable eye plate; 3-suspender rod: 4-guide pulley 5-ram horn; 6-stop bracket: 7 upper bearing seat: 8 baffle plate: 9-base: 10-suspender rod: 11 Lower bearing diagram 3C type anchor rod
Qiu 4 Basic dimensions of C type anchor rod
Rated load
Weight (kg)
3.2 Marking
CB/T431--2000
The steel pipe anchor rod with a rated load of 100kg is marked as: Anchor rod A100CB/T4312000
The I-beam anchor rod with a rated load of 1000kg is marked as: Anchor rod C1000CB/T431-2000
4 Requirements
The materials of the main parts of the anchor rod are shown in Table 6.
Table 6 Materials of main parts of anchor rods
Parts name
Lifting rod (Type A)
Column, lifting arm (strut, pressure rod) (Type B)
Lifting rod (Type C)
Lifting arm (pull rod) (Type B)
Lifting rod
Pull ring, lifting ring
Lifting eye plate, movable eye plate
Upper bearing||tt ||Lower bearing
Seat frame or reinforced seat
Joint-type pressure-injected oil cup
Copper bushing
Guide pulley
Sleeve, rotating seat, pin
Seamless steel pipe
High-quality carbon structural steel
Ordinary carbon structural steel
Stainless acid-resistant steel
4.2 The surface of the anchor rod should be smooth and free from defects such as twisting and warping. Material
Q235-A
ZCuA19Mn2
1Cr18Nig
Standard No.
GB/T8162
GB/T699
GB/T700
GB/T4423
GB/T13809
GB/T1176
GB/T1220
4.3 The permanent mark of rated negative ××kg shall be clearly marked on the eye-catching part of the anchor rod by electric welding or other effective methods and painted with color paint.
4.4 Under rated load, the rotating part of the anchor rod shall rotate flexibly and shall not be stuck. 4.5 Under 1.5 times rated load, the anchor rod shall not have permanent deformation and the rotating part shall rotate flexibly. 4.6 After the surface of the anchor rod is rust-free, it shall be coated with anti-rust primer once, and the outer surface shall be coated with asphalt paint. The color paint shall be applied after installation on the ship, and all rotating parts shall be coated with lubricating oil.
5 Test method
5.1 The test method for chemical composition and mechanical properties of the column, boom and suspender of the anchor rod shall be carried out in accordance with the provisions of GB/T699 and GB/T8162. The results shall meet the requirements of 4.1. 5.2 The appearance quality of the anchor rod shall be checked with a nail. The results shall meet the requirements of 4.2, 4.3 and 4.6. 5
CB/T431-2000
5.3 The anchor rod shall be hoisted with rated load, rotated back and forth 3 to 5 times, and its rotation flexibility shall be checked. The results shall meet the requirements of 4.4. 5.4 The anchor rod shall be hoisted with 1.5 times the rated load, the loading time shall not be less than 10 minutes, and rotated back and forth 3 to 5 times to check the rotation flexibility. After removing the load, check the flexibility and deformation of rotation. The results should meet the requirements of 4.5. 6 Inspection rules
6.1 Inspection classification
The inspection of anchor rods is divided into type inspection and factory inspection. 6.2 Type inspection
Type inspection should be carried out in one of the following situations: a) Trial design identification when new products or old products are transferred to the factory; b) After formal production, if there are major changes in the process and materials of major parts, which may affect the product performance; c) When the national technical supervision agency proposes a type inspection requirement. 6.2.1 Inspection items
The inspection items of type inspection are shown in Table 7.
6.2.2 Number of inspection samples
The samples for type inspection are generally not less than 2 pieces. 6.2.3 Judgment rules
When all inspection items of all samples meet the requirements, they are judged to be qualified for type inspection. If items that do not meet the requirements are found in the samples, it is allowed to re-inspect the item and related items after finding out the cause and eliminating the fault. If there are still items that do not meet the requirements during the re-inspection, the type inspection is considered unqualified.
6.3 Factory inspection
6.3.1 Inspection items
Inspection items for factory inspection are shown in Table 7.
Table 7 Inspection items
Inspection items
Chemical composition and mechanical properties of materials for columns, suspension rods and suspension arms Appearance quality
Rated load recommendation
Overload
Required article number Test method article number Type inspection
4.2, 4.3, 4.6
Note: The symbol "" in the table indicates the items to be inspected, and "—" indicates the items not to be inspected. 6.3.2 Sampling plan
Each anchor rod shall be inspected before delivery. 6.3.3 Judgment rules
Factory inspection
Anchor rods that meet all the inspection items are judged as qualified products: If any items that do not meet the requirements are found, it is allowed to find out the reasons, eliminate the faults, and re-inspect. If it is still unqualified, the anchor rod is an unqualified product. 7 Marking, packaging and transportationwww.bzxz.net
7.1 Anchor rod products should have the following markings: a) manufacturer's name or trademark;
b) model and standard number;
c) rated load;
d) manufacturing date,
e) inspection seal.
CB/T431-2000
Anchor rods should be packaged in accordance with the provisions of GB/T13384 and meet the requirements of loading, unloading and transportation. 3 The shipping and receiving marks of the transport packaging should be in accordance with the provisions of GB/T6388. 7.3
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