JB/T 2409-1999 This standard is a revision of JB 2409-85 "Basic parameters and dimensions of screw compressor rotors and synchronous gears". Only editorial changes were made during the revision, and the main content remained unchanged. This standard specifies the basic parameters and dimensions of screw compressor rotors and synchronous gears. This standard is applicable to screw step gears with a nominal exhaust pressure of 3MPa (30bar) and a nominal volume flow rate of 0.5~1200?/min. JB/T 2409-1999 Basic parameters and dimensions of screw compressor rotors and synchronous gears JB/T2409-1999 Standard download decompression password: www.bzxz.net

[C5 23. 14
Machinery Industry Standard of the People's Republic of China
JB/T2409-1999
Screw compressor rotor and timing gear
Basic parameters and sizes
The basic parameters and sizes ofthe rotor of serew compressor and timing gear1999-07-12 Issued
State Machinery Industry Bureau
2000-01-01 Implementation
1药王
Machinery Industry Standard of the People's Republic of China
Screw compressor rotor and timing gear
Basic parameters and sizes
Yhe basic parameters and sizes ofthe rotor of serew compressor and timing gear gearJB/T2409—1999
This standard specifies the basic parameters and dimensions of the rotor (hereinafter referred to as the rotor) and synchronous gear of the frequency rod compressor. This standard is applicable to the rotor and synchronous gear of the compressor with a nominal exhaust pressure not higher than 3MPa (30bar) and a nominal flow rate of 0.5-1200m/mia.
2 Basic parameters and dimensions of the rotor
2.1 The basic parameters and dimensions of the common surface profile of the asymmetric point-shaped rotor are in accordance with Figure 1 and Table 2. For the rotor with a nominal diameter of more than 501T1:m, a symmetrical arc shape is adopted, and the basic parameters and dimensions of the end profile are in accordance with Figure 2 and Table 2. Rotating line segment package:
one is the rotor package: Pgo, inside:
one is the package.
National Machinery Industry Bureau 1999-07-12 approved 2000-01-01 implementation
line sub-medicine
nominal daily diameter
center distance
center
B2409-1999
0.-0.640,
Aiyinxiaojing
attached rotor
beam rotor
60 ±82
76 800
159 60
required radius
tooth height ratio diameter
1.0m ×1.X
:1.26×125
1.60 ×1.60
Xenon drive gear
Harvest gear:
Instantaneous drive gear or
H/2409—1999
The adjustment process of asymmetric drive gear shall be as specified in Table 3, and the tooth shape of symmetrical drive gear shall be as specified in Table 4. 2.2
Nominal diameter
State
192 0U
Transform to nominal diameter
Medical rotor
,=1.80
113 46
450 30
241J,80
T; -2 25
Male rotor
En rotor
Female rotor
1330 00
25G 00
40G D0
120G D0
1890 D0
Medical rotor
1 72 7),
2160 10
Long lead
1440 30
5u6 25
202300
Medical rotor
2.3 When the small finger-toothed rotor is used for the positive tear screw, the rotor nominal diameter D31Smm is provided with a sealing rib, and the light nominal diameter D400mm is provided with a sealing rib: when the non-lubricated screw is used for the compression seal, the rotor is provided with a sealing rib, and the sealing rib size is specified in Figure 3 and Table 5.
Rotor nominal diameter
Horizontal rotor section diameter
D,-0.96 D.
3 Basic parameters of synchronous gears
JBFT24--1999
The number of synchronous gear sets corresponding to each nominal diameter is specified in Table 6. Rotor outer
D-0.960+25
77 20H!
Yin equal sub-line segment
de=0.005 D,-h
.3.500
Rotation can be central self-final D
.352.0
JB2409-1999
Normal surface number m
Screw city car
170:6° 30
16-5125
23\15'22°
2002:31bzxZ.net
250°28
11321:5
23*55°37
20°2151
22°4%54
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