This standard specifies the type and basic dimensions, technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of PBF and PCF planetary gear reducers. This standard applies to PF planetary gear reducers used in mechanical equipment such as mining, metallurgy, cement, light chemical, energy, building materials, lifting and transportation. JB/T 6120-1992 PF planetary gear reducer JB/T6120-1992 standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T6120-92
PF Planetary Gear Reducer
Published on June 9, 1992
Implementation by the Ministry of Machinery and Electronics Industry of the People's Republic of China on January 1, 1993
JB/T6120-92
Subject Content and Scope of Application
Cited Standards·
3 Types and Dimensions.
4 Basic Parameters
5 Technical Requirements·
6 Test methods and inspection rules
7 Marking, packaging, transportation, storage
Appendix A Load capacity and selection of reducers (supplementary) Appendix B Load classification table of driven machinery (reference)
Mechanical industry standard of the People's Republic of China
PF planetary gear reducer
JB/T612092
This standard specifies the type and basic dimensions, technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of PBF and PCF planetary gear reducers.
This standard is applicable to PF planetary gear reducers used in mechanical equipment such as mining, metallurgy, cement, light chemical, energy, building materials, lifting and transportation.
Referenced standards
GB1184
GB1356
GB1357
GB9439
GB10095
JB1152
JB/ZQ4000.10
3 Type, size
Shape and position tolerances Provisions for tolerances not specified Involute cylindrical gears
Basic Gear
Variation line cylindrical gear
Gray iron castings
Variation line cylindrical gear
General technical conditions for ultrasonic flaw detection and coating of butt welds of boilers and steel pressure vessels
1 Assembly type and overall dimensions
PBF is divided into two-stage planetary transmission and two-stage planetary transmission plus one-stage ordinary parallel shaft transmission, PCF is divided into three-stage planetary transmission and three-stage planetary transmission plus one-stage ordinary parallel shaft transmission.
3.1.1 The overall dimensions and assembly type of PBF56~PBF125 reducers shall comply with the provisions of Figure 1 and Table 1. The overall dimensions and assembly type of PBF160 and PBF200 reducers shall comply with the provisions of Figure 2 and Table 2. 3.1.2
3.1.3 The overall dimensions and assembly type of PCF63 reducers shall comply with the provisions of Figure 3 and Table 3. Approved by the Ministry of Machinery and Electronics Industry on June 9, 1992 and implemented on January 1, 1993
JB/T6120-92
13=360°
PBF100
PBF125
PBF100
PBF125
Overall dimensions and center height
j=6380
Out-of-shaft dimension
i=1020
In-shaft dimension
Ground dimension
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JB/T612092
JB/T 612092
Assembly type
PBF160
PBF200
PBF160
PBF20K
Overall dimensions and center height
Output shaft size
i=90~280
JB/T612092
Input shaft size
24×159-/360
JB/T 612092
24×159-/360%
Overall dimensions and center height
Axle dimensions
i=315630
3.2 Models and examples
3.2.1 Models
Output shaft dimensions
Two-stage and three-stage planetary gear reducers
3.2.2 Examples
(=90-2 00wwW.bzxz.Net
JB/T6120-92
Nominal transmission ratio
Assembly type
Axle size
J=225-280
Nominal pitch circle diameter of low-speed internal gear, cmTwo-stage planetary gear transmission
Nominal transmission ratio
Assembly type
Nominal pitch circle diameter of low-speed internal gear, cmThree-stage planetary gear Wheel transmission
J=315~630
Nominal pitch circle diameter of low-speed internal gear 100cm, nominal transmission ratio of two-stage reduction i=20, planetary gear of the first assembly type a.
3.2 Models and examples
3.2.1 Models
Two-stage and three-stage planetary gear reducers
JB/T612092
Nominal transmission ratio
Assembly type
Nominal pitch circle diameter of low-speed internal gear, cm Two-stage planetary gear transmission
Nominal transmission ratio
Assembly type
Nominal pitch circle diameter of low-speed internal gear, cm Three-stage planetary gear transmission
Nominal pitch circle diameter of low-speed internal gear 100cm, nominal transmission ratio of two-stage reduction = 20, planetary gear reduction of the first assembly type The model of the device is:
PBF100-I-20
b. The nominal pitch circle diameter of the low-speed internal gear is 63cm. The three-stage planetary plus one-stage parallel shaft transmission has a nominal transmission ratio of i=630. The model of the planetary gear reducer of the third assembly type is: PCF63-IⅢI-630
4 Basic parameters
4.1 Gear transmission center distance and transmission ratio
4. 1.1 The center distance of PBF type reducer shall comply with the provisions of Table 4. Table 4
Low speed planetary level
High speed planetary level
Parallel axis level
184.0~206.0
132.0~169.0
163.0~295.2
185.6~231.9
PBF100
3 34.0~370.0
235.5~~292.2
PCF type reducer center distance should comply with the provisions of Table 5Table 5
Low speed level
Intermediate level
147.6~170.2
PBF125
422.0~463.4
291.0~370.0
PB F160
541.3~589.2
371.7~463.4
High-speed grade
114.1~134.17
PBF200
680.6~736.0
472.2~589.2
Parallel shaft grade
The nominal transmission ratio of the reduction gear shall comply with the provisions of Table 6. JB/T612092
PCF90.0100.0112.0125.0140.0160.0180.0200.0224.0250.0280.0315.03550.400.0450.0500.0560.0630.04.2 The relative error between the actual transmission ratio and the nominal transmission ratio of the reducer should not exceed 3%~5%. 4.3 The gear module should comply with the provisions of GB1357. The gear modules selected in this standard are shown in Table 7. Table 7
4.4 The basic tooth profile of the gear should comply with the provisions of GB1356. 4.5 Tooth width of gear
4.5.1 The effective tooth width b of planetary transmission stage shall comply with the provisions of formula (1): b=ba ds
Where: d
Gear center distance:
ba——Tooth width coefficient, ba=0.18~0.204.5.2 The effective tooth width of parallel axis transmission stage shall comply with the provisions of formula (2): b=b. a
Where: a
Gear center distance:
b. —Tooth width coefficient, b=0.4
4.6 The number of planetary gears in single-stage planetary transmission is n,=3.5 Technical requirements
General technical requirements
5.1.1 The reducer shall comply with the requirements of this standard and shall be manufactured according to the drawings and technical documents approved by the prescribed procedures. 5.1.2 The two-stage efficiency of the reducer should not be less than 0.96, and the three-stage efficiency should not be less than 0.94. 80.0
5.1.3 High-speed shaft maximum speed: PBF56~-PBF80 and PCF63 models shall not exceed 1500r/min, PBF100-PBF200 models shall not exceed 1000r/min.
5.1.4 The working environment temperature of the reducer is -40~45℃. When it is lower than 8℃, a heating device shall be added, and when it is higher than 35℃, a cooling device shall be added. 5.1.5
The temperature rise of the lubricating oil in the reducer housing shall not exceed 35℃, and the temperature rise of the bearing shall not exceed 40℃. 5.1.6 The noise of the reducer shall not exceed 85dB(A), and the unidirectional amplitude shall not exceed 0.02mm. 5.1.7 The reducer must be operated at no load before installation or when it is shut down for more than 4h. It can be used with load only after confirming that the noise, vibration and lubrication are normal.
5.2 Technical requirements for manufacturing main parts
5.2.1 Engine body and engine cover
5.2.1.1 The material of engine body shall not be lower than the HT300 performance requirement specified in GB9439; the material of engine cover shall not be lower than the HT2509 performance requirement specified in GB9439
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