JB/T 9150-1999 JB/T 9150-1999 Anti-loosening bolt connection pair JB/T9150-1999 Standard download decompression password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
JB/T9150-1999
Preventing laose bolt connecting assembly
1999-06-28 Issued
National Bureau of Machinery Industry
2000-01-01 Implementation
JB/T9150-1999
This standard is a revision of ZBJ13001-90 "Preventing laose bolt connecting assemblies". During the revision, only the summary modification was made according to the relevant provisions, and the main technical content remained unchanged.
This standard replaces ZBJ13001-90 from the date of implementation. Appendix A of this standard is the appendix of the standard.
This standard is proposed and approved by the National Standardization Technical Committee for Tightness. The responsible unit for the issuance of this standard: Shenyang Standard Parts Research Institute. 1 Scope
Machinery Industry Standard of the People's Republic of China
Lock-proof bolt connecting pair
Frcycnriag loogeboltconnectingasscnblyJB/T9150-1999
This standard specifies the types, dimensions, technical conditions, acceptance and packaging of anti-loosening bolts with thread specifications of M6-M, A and B grades.
This standard applies to civil use, highway and railway construction, coupling: machinery and vehicle anti-inspection screw connection brush, 2 cited standards
The following provisions are included in the standard, which become standard provisions through reference in this standard. The versions shown in the standard are valid: all standards will be revised. The parties using this standard should explore and use the latest version of the following standards (TB/T 90--1985
RT1619R1
GA/T197-1981
GA/T1237-1988
GET3098.1-1982
(confirmed in 1988)
GBT 3098.2—1982
(valid in 1988)
Fasteners acceptance inspection, marking and packaging
General frequency basic dimensions (diameter 1=600mm) General frequency tolerance and matching (diameter 1-355mm) Fastener marking method
Fasteners mechanical properties of bolts, screws and studs mechanical properties of parts
Fasteners tolerances screw nut, screw and nut
QBFr 3103.1-1982
(valid in 1988)
GBT5267—1985
GB/T 5779.1-[986www.bzxz.net
GB/T 37792-1986
G/T 5779.3-1986
GR/T 5782—1986
3 Types and dimensions
Plating of threaded fasteners
Surface defects of fasteners, requirements for nails and screws, and special requirements for fasteners and bolts, hexagonal head bolts, grade A and B
3.1 Types of threaded fasteners according to the drawing! Regulations: Approved by the State Administration of Machinery Industry on June 28, 1999
20HH0-01-01 Implementation
3.2 Size
32.1 Explosion bolt size
Island pine screw
Tightness size, according to Figure 2 and Table 1.
JB/T9150-1999
Main connection
\—+→121
7-Every Wang
1R.T9150-1990
JB/T9150
.s-is1
z1$611'Bs
3.2.2 Anti-grid head size
Anti-loose head size according to the provisions of period 3 and Table 2. x
1B/T 9150-1994
Design: When using the business requirements, after the cooperation of the two Ji, the opening conditions are also trained to feel other types of plates Figure 3
Threaded discharge child
3.2.3 The size of the nut
baking tray size shall be in accordance with the regulations in Figure 4 and Table 3.
Purple safety specifications
1) Special requirements are required, and the following shall be avoided:
Technical specifications and test methods
Technical specifications
JB/T9150-L999
The technical requirements for anti-loosening bolts and loose heads shall be in accordance with the provisions of Table 4: 4. 1. 1
Machine ball performance
According to the surface treatment
Surface defects,
The technical conditions for thread rate shall be in accordance with the provisions of Table 5.
Products, etc.
13 ur)
GB/T196, GDT197
A for 24 and 15Um to find the core
For 4 tons 1 ton>10mm according to the smaller one)
GB door 31031
4.8, 8.8 or connect the agreement
GBV/T 3098.1
Oxidation 2 chain lattice G0.T5267
Effective without treatment sample
8T $774.1,[ 5779.3
GD/T 196, GBT 197
A grade for De:24:B for>24
GB/[3103.]
Scanning performance
Surface treatment
Surface defects
Test method
/T9150--1999
Surface finish)
6, B, 10 or by agreement
GBT30982
@Unintegrated attenuation treatment 2: Detailed information on our GT5267G door 5779.2
4.2.1 The test method and requirements of the operation mother shall be in accordance with the provisions of G13098.2. The operation mother shall ensure that the load test is carried out at 5 times the frequency of the core sample.
4,2.2 The anti-loosening medium bolt connection pair is a tensile test on a special tool. Tensile load is in accordance with GD/T3098.1. 5. Acceptance and inspection
5.1 Dimensions and appearance
5.1.1 After the anti-loosening and explosion-proof bolts and any anti-terrorist head are assembled with the nut, the gap at the lap joint should be less than or equal to 1/10 of the screw thread. 5.1.2 Dimensions and qualified quality water are in accordance with the requirements of Table 6. Table 6
Sampling in the project
width.
Head Angle Radius
Thread Thread Standard
Main Items
Sub-items
Thread Setting
Push Length
Overlap Space
Other Items
5.1.3 Surface Defects
Anti-loosening Screw
Anti-loosening Bolt Connection Surface Defects shall comply with the provisions of GB/T5779.1-5779.2. 5.2 Mechanical Properties
Anti-loosening Head
5.2.1 Anti-loosening Fuel Valve Connection Performance Inspection shall comply with the provisions of G9/309S.1~3098.2. 5.2,2 Qualified Quality Level shall comply with the provisions of CB/T90. 6 Marking and packaging
6.1. Marking (E12)
6.1.2 Marking example
JB/T9101999
Sinusoidal specification M2G, clamping length [=1C0 performance level 4. Grade, non-destructive surface treatment, level 1 anti-inspection bolt connection other ring mark:
Anti-loosening bolt connection pair
1JB/T950-1999
M20X100
6.2 Packaging
6.2.1 Anti-loosening bolts, anti-loosening heads, nut components are separately packed in the same box, each box is marked with 25k. 6.2 Other requirements according to 90 soul
IB/T 9150-1999
Appendix A
(Standard Appendix)
Requirements for the length and dimensions of the anti-loosening connection pair A1 Calculation of the length and dimensions of the anti-loosening bolt and anti-loosening head The anti-loosening head is made from an integral bolt, and its length is calculated according to Figure A1 and the formula. i+2p
f-/+16p-f,-9p
4?CRT 37R2 stipulates
—pitch
A2 Anti-loosening bolt connection requirements
A2.1 Anti-loosening screw connection pairs are allowed to use flat washers to adjust the tightening length: A2.2 After the anti-loosening connection pair is clamped to the connection body, the anti-loosening head must be rotated counterclockwise, and the exposed length of the anti-loosening head is 3 times the rate point. A2.3 If the connection is loose, first move the anti-loosening head clockwise to tighten it, and then loosen it.
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