This standard specifies the classification, type and parameters, technical requirements, test methods, inspection rules, marking, packaging and storage of JS, JSB, JSS, JSD, JSJ, JSG, JSZ, JSP and JSA serpentine spring couplings. JB/T 8869-2000 Serpentine Spring Coupling JB/T8869-2000 Standard download decompression password: www.bzxz.net

ICS 21.120.20
Machinery Industry Standard of the People's Republic of China
JB/T8869-2000
Snake Spring Coupling
Steelfler couplings
Published on April 24, 2000
Implementation on October 1, 2000 by the State Machinery Industry Bureau of the People's Republic of China
JET 8869-2000
Cited standards
Structural type, basic parameters and main dimensions4
5Technical requirements
6Test methods·
Inspection and measurement
Marking, installation, etc.
Appendix A (Appendix to the standard)JSJ Plastic intermediate shaftNumber of spring-lock couplingsIntermediate shaft length verification35
JE/T8869-2000
This The standard is a general reference to JB/T8869-1999 (7B/TJ19023-90) "Static setting of serpentine spring couplings". The main differences between this standard and the previous standard are: including JS, JSB, JSS, JSD, JSJ, JS, JSZ, JSP, JSA9 types; JS type 25 specifications; each specification stipulates a shaft hole length; Appendix A JSI type intermediate shaft type serpentine spring coupling intermediate shaft length verification is added. This standard replaces 8869-1999 from the date of implementation. Appendix A of this standard is the appendix of the standard.
This standard was proposed and coordinated by the National Technical Committee for Standardization of Machine Group Shafts and Accessories. The units that initiated this standard are: Machinery and Sugar Science Research Institute, American Fokker Company. This standard mainly refers to: Shang Mingheng, Xing Shoujing, Ming Cui Xin Zheng Yi 1 Scope
Machinery Industry Standard of the People's Republic of China
Steelflex conplings
JE/T B869—2000
JBB69—1990
This standard specifies the classification, type and parameters, technical requirements, test methods, inspection rules, marking, packaging and storage of JS, JSB, JS, JSD, JSJ, JSO, JSZ, JSP and JSA serpentine spring couplings (hereinafter referred to as couplings).
This standard is applicable to medium and large power transmission shafts that connect two coaxial lines, and have certain compensation for the relative displacement of the two shafts and vibration reduction and impact performance, with a working degree of -30T~+150%, and a transmission nominal torque of 45-800000N·m. 2 Referenced standards
The following standards contain service documents, which are cited in this standard and constitute the documents recommended by this standard. When this standard is published, the short versions shown are valid, and all standards will be revised. All parties using this standard should explore the possibility of using the latest versions of the following standards. 0B 19]—[990
GB/T 1173-1995
GB/T 11761997
GB/T 1222—1984
GB/T 1591—1994
GB/ 3098.1—1982
GB/T 3098.2 —1982
GB/T3852—1997
·GB/T4B7919B5
GE/T 6388—19B6
GE/ 6537---1987
GB/T113521989
QB/T 12458·--1990
GB/T 13384—1992
JE/T 6397..-1992
JB/T 75I 1994
3 Classification
3.1 Type
Packaging, storage and transportation, pictorial symbols
Avoidance alloy
Cast copper alloy
Elastic strip steel
Low alloy high strength structural steel
Mechanical properties of fasteners Bolts, nails and studs Fasteners Mechanical properties Nuts
Couplings Shaft holes and connection types and dimensions
Rust-proof packaging
Transportation packaging, delivery and receipt marks
Mechanical balance of flexible rotors
Casting steel parts for general engineering
Classification of mechanical couplings
General technical conditions for packaging of electrical products
Large carbon steel forgings
Calculation of mechanical couplings
Couplings are divided into 9 types, see table! 。
Approved by the State Administration of Machinery Industry of the People's Republic of China on April 24, 2000 and implemented on October 1, 2000
Military safety type
【Basic】
Axial safety center
Double flange connection type
Single flange connection
Connected shaft
JB/T 8869-288
3.2 Model and mark
With brake wheel type
Circulating brake disc type
Safety type
JB/T 8869-2
Table 丨【Study】
The model and mark of the coupling shall comply with the provisions of GB/T12458. 3.2.1 Model Indication Method
Specification Code
Structural Type Code
Variety Code
Group Code
Model Example:
Example 1: The basic type serpentine spring coupling with a torque of 8000N·m is model: JS10. Example 2: The single flange type serpentine spring coupling with a torque of 400N·m is model: JSD4 Example 3: The intermediate shaft serpentine spring coupling with a torque of 18000N·m is model: 3SJ932.2 Marking Method
Marking Example:
Example 1: J86 serpentine spring coupling
JB/T8969-2000
Actuating End Shaft Hole Type Code
Actuating End Key Push Type Code
Active end hole true diameter, mm
Active end shaft hole matching length, mn
Standard number
Driven end shaft hole matching length, mmr
Driven end shaft hole diameter, mm
Driven end chain planting type code
Driven end shaft hole type code
Coupling model, name (simplified tax coupling] Active end: J, type shaft hole, A type groove, d-5 (mm, L=76mm Driven end: J, current shaft hole, B Type, 63mm, L=76mmJS6 coupling, 50×76
J63×76
Example 2: JSJ8 snake-shaped elastic shark coupling
JB/T8869
Driving end: J, elastic shaft hole, A-type chain groove, d=100mm, L=150mmDriven end: J, plastic shaft hole, A-type chain mold, d=100mm, L=150mmJSJ8 coupling 100×150JBT8869
4 nanostructure type, basic potential number and main dimensions4.1 type.-The radial protruding thin type (English type) type, parameters and main dimensions of the store shall comply with the requirements of Figure 1 and Table 2. IS1 type-JS13 type
JS20±-JS22 type
JS14 type-JS19
JS23 type JS25
JS1 type-JS22 type covers are made of aluminum; JS23 type-JS25 type covers are made of steel; 5 half-axis exposure: 2 setting grams; 3-frequency-shaped elastic tube: 4 through-hole diagram! Type housing radial installation type (basic type) coupling JB/T8869-Z00D
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一一Zhuoguang axial installation type, type, parameters and main dimensions shall comply with the provisions of Figure 2 and Table 3. .2JSE type
JSBI type~JSB13 type
JSRE4 type~JSH16 type
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