JB/T 9728-1999 This standard is a revision of NJ 264-82 "Installation and connection dimensions of distributed fuel injection pump assemblies". The main technical content changes are as follows: - The involute spline connection method has been cancelled; - In the tapered shaft transmission method, the drive shaft length and flange hole type have changed. This standard specifies the installation and connection dimensions of distributed fuel injection pump assemblies for diesel engines. This standard is applicable to distributed fuel injection pump assemblies for tractors, automobiles, fixed, mobile and small marine diesel engines. This standard was first issued on April 15, 1982. JB/T 9728-1999 Installation and connection dimensions of distributed fuel injection pump assemblies JB/T9728-1999 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T9728—1999
Distributor fuel injection pump assembly
Installation and connection dimensions
Dimcnsinns for niounting and connection ufdisiribptorfuelinjectionpumps1999-09-17 Issued
National Bureau of Machinery Industry
2000-01-01 Implementation
78-199
In the revision of NI264—82 "Distributor fuel injection system assembly or installation table and connection dimensions", this standard has the following main technical content changes compared with NJ261—82: Cancelled the involute flower lithium connection mode:
In the original tapered shaft special type, the type with a transmission shaft length of 5lmm was eliminated, and the long shaft was added! mm and shaft 44mm;
In the original energy-saving mode, the 3-hole method is retained, and the 2-hole method is added. This standard replaces N26482 from the implementation of this standard. This standard is proposed and approved by the Fuel Injection Standardization Technical Committee. The drafting unit of this standard: Fuel Injection Research Institute, the main drafters of this standard: Zhu Fen, Wang Ru4 The standard was first released in January 1992.
Machinery Industry Standard of the People's Republic of China
Distributor Fuel Injection Pump Assembly
Installation and Connection Dimensions
Dimensinns far mountingnd connectlan otdisiributurfuelinjectiotpumps This standard specifies the installation and connection dimensions of distributor fuel injection assembly for diesel engines. JB/T9728-1999
NI26422
This standard specifies the distribution type of spraying machines for trailers, automobiles, fixed, mobile and small ship loading and unloading machines. 2 Referenced standards
The following standards contain provisions that are not used in this standard and constitute the provisions of the standard. When this standard is published, all versions are valid and all standards will be revised. Parties using this standard should explore the possibility of using the new temporary version of the following standard. GAT1569-1997 Chain Technical Conditions
3 Technical Requirements
This standard defines four types of shaft connection methods, including 3-hole flange and 2-hole flange, long drive shaft and short drive shaft. 3.1 The first connection method
Use a convex positioning with a diameter of 5mm, use a frequency selection fixation, and the center of the sample holes is evenly distributed on a net with a diameter of 9mm, and the front can be driven by the shaft! The diameter of the human end is 20mm, and the chain is: 51 darts. The length from the full face of the blue surface to the shaft is 44mm. See Figure 1 for details. Garden ±025
MI3XI,
To the first type of shaft connection lamp type
National Machinery Industry Week 1999-09-17 approved 2000-01-01 implementation
3. 2 The second connection is type
JB/T972B—1999
Using a flange with a diameter of 50 mm, three bolts are used to tighten the center of the explosion control hole on a 98 mm diameter pliers or a large cat point with a diameter of 20 mm, a chain ratio of 1:5, and a flange to palm diameter of 61 mm. For details, see 2±0,25Www.bzxZ.net
Figure 2. A male shaft connection method
3.3 The first connection is to use a convex flange with a diameter of mm to position it, use a bolt to tighten it, and the center of the explosion control hole is on a circle with a diameter of m: use a shaft drive (true diameter test) The dynamic nmm, the speed is 1:5: the total length to the auxiliary end is 44mm, see Figure 30113
490±1171
Figure 3 The first and clamp shaft connection method
3.4 ​​The fourth connection method
JB/T9728—1999
Use a convex positioning with a diameter of 50mm, use two operating cases, and the center of the screw grid is evenly distributed on the toilet with a diameter of medium mm, and the nail shaft drive (the six-way diameter is 2mmm, the dimension is 1:5) reaches some surface ratio The shaft end face length is 61mm, see Figure 45
96 ± D.23
4 The first tank shaft connection force method
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