JB/T 9731.2-1999 This standard adopts ISO 6519:1993 "Taper of shaft ends and hubs of diesel fuel injection pumps" in a non-equivalent manner. Compared with ISO 6519:1993, the keyway dimensions of the tapered hub are not included, and the third type of tapered shaft ends is added. This standard is a revision of ZB J94 009-89 "Dimensions of shaft ends of diesel fuel injection pump camshafts". During the revision, only editorial changes were made according to relevant regulations, and the main technical content has not changed. This standard specifies the shaft end type and basic dimensions of diesel fuel injection pump camshafts with tapered drive shafts. This standard is applicable to tractors, automobiles, fixed, mobile and small marine diesel in-line fuel injection pump camshafts. This standard was first issued on March 30, 1989. JB/T 9731.2-1999 Diesel engine fuel injection pump camshaft shaft end dimensions JB/T9731.2-1999 Standard download decompression password: www.bzxz.net

I5 43.060.40
Machinery Industry Standard of the People's Republic of China
3B/T 9731.2—1999
negNO6519:1993
Camshaft of fuel injection pump for diesel engines
Shaft end dimensions
Dimensions of camshaft extension of fuel injection pump for diesel engides
1999-(9-17 Issued
State Machinery Industry Bureau
2000-01-01 Implementation
JB/T9731.2—1999
This standard is not equivalent to 1506519:1993 "Dimensions of shaft ends and shafts of diesel engine injection systems". Compared with 1506519:1993, this standard does not list the key dimensions of tapered shafts, and adds a third type of key-shaped shaft ends. This standard is completely consistent with BJ940089 (Dimensions of shaft increases for diesel engine injection cams). The original standard was edited during the revision, and the main technical content remained unchanged. This standard will be implemented from now on. H replaces ZBJ9400989. This standard was proposed and managed by the Fuel Injection Pump Technical Committee. The drafting unit of this standard is Wu Guoshou An Fuel Injection Pump Research Institute. The main contributors of this standard are Guo Fen and Zhang Min. This standard was first issued in March 199.
1 Scope
Machinery Industry Standards of the People's Republic of China
Diesel engine fuel injection pump camshaft
Shaft end dimensions
Dineasiuasofcamshaftwxteasipnaf fuelinjeetipnpump for dieseleagles
eeqTso6519:1993
Replaced by ZBJ94009-89
This standard defines the shaft end type and basic dimensions of the diesel engine fuel injection pump camshaft with chain-type transmission shaft. This standard is applicable to in-line fuel injection camshafts of trucks, automobiles, fixed, mobile and small-sized diesel engines (hereinafter referred to as camshafts).
2 Referenced standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. This standard was published at the time of publication. , the versions shown are valid. All standards are subject to revision, and parties using the standard should explore the possibility of using the latest version of the following standards. GB/T31997 Types and basic dimensions of screw thread end, pitch, back groove and angle
3.1 The type and size of the shaft end of the injection gear shaft shall be in accordance with Figure 1, Figure 2, Figure 3 and Table 1. The connection model of the 32-way connection type 1 draw end, 2 draw end or 3 draw end can be selected, and the screw thread can be backed according to the relevant provisions of BT3. The end of the screw thread must be connected to the ×-x surface in the figure. 2.5 ma
1725'6* 151
Figure 1 [Type shaft carbon
Approved by the State Machinery Industry Bureau on September 17, 1999 and implemented on January 1, 2000wwW.bzxz.Net
3B/T9731.1--1999
sskd15
Figure 22 Type shaft end
Note: 1) The distance from the chamfer to the dimension (before. 1 basic dimension 4. 251.5
Figure 3 Type output end
Table! The basic dimension of the tapered shaft end of the injection pump impeller shaft is A
M14× 1.5
(14×1.5)
M24x1S
Increase in diameter F
【】When the shaft size of the bearing is the same as the basic size, the size tolerance of the matching part is determined by the type of bearing. 2; When the basic size is 2.mm, M16 is preferred. When the size is 25mm, M8×1.5.mm is preferred.
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