This standard specifies the type, size, basic parameters and technical conditions of five series of double-row spur gear planetary reducers: SPA, SPB, SPAZ, SPBZ and SPC. This standard is mainly applicable to industries such as metallurgy, mining, building materials, chemical industry, energy and transportation. JB/T 6999-1993 Double-row spur gear planetary reducer JB/T6999-1993 Standard download decompression password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
JB/T6999-1993
Double-row spur planetary reducer
Published on September 3, 1993
Ministry of Machinery Industry of the People's Republic of China
Implementation on July 1, 1994
Subject content and scope of application..
2 Reference standards...
3 Types and dimensions
4 Basic parameters
5 Technical requirements
Appendix A Loading capacity of reducer Capacity and selection (supplementary) Appendix B Reducer load classification (reference)......(1)
Mechanical Industry Standard of the People's Republic of China
Double-row spur-tooth planetary reducer
Subject content and scope of application
JB/T6999-1993
SPB, SPAZ, SPBZ, SPC five series of double-row spur-tooth planetary reducers (hereinafter referred to as reducers) This standard specifies the type size, basic parameters and technical conditions of SPA,
. This standard is mainly applicable to metallurgy, mining, building materials, chemical industry, energy, transportation and other industries. The high-speed shaft speed of the reducer is 600~1500r/min according to its specifications. The circumferential speed of the reducer gear transmission is not more than 15m/s for spur gears and not more than 20m/s for helical gears. The working environment temperature of the reducer is -40~+45℃. When it is lower than 0℃, the lubricating oil should be preheated to above 10℃ before starting. The reducer can run in both forward and reverse directions.
Cited standards
GB1356
GB1357
GB9439
GB10095
GB11368
GB/T13384
ZBJ19005
3Types and dimensions
Packaging, storage and transportation pictorial symbols
Involute cylindrical gears
Basic tooth profile
ZBJ19005
3Types and dimensions
Pictorial symbols for packaging, storage and transportation ... 3.1.1
The assembly type and external dimensions of the SPB reducer shall comply with the provisions of Figure 2 and Table 2. The assembly type and external dimensions of the SPC reducer shall comply with the provisions of Figure 3 and Table 3. The assembly type and external dimensions of the SPAZ reducer shall comply with the provisions of Figure 4 and Table 4. The assembly type and external dimensions of the SPBZ reducer shall comply with the provisions of Figure 5 and Table 5. 3.1.5
Approved by the Ministry of Machinery Industry on September 3, 1993
Implemented on July 1, 1994
168000
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Output torque
6110000
Transmission ratio
Model specification
SPAZ63
SPAZ1000
15SPAZ 1120
16SPAZ1250
Nominal transmission
Appearance and shaft education
Appearance and shaft height
17 SPAZ 140010~183642242(
foot size
foot size
output torque
≤115000
≤172500
437000
632500
851000
977500
output torque:
238200
436200
685500
702200
model specification
16SPAZ 125
nominal law
17SPAZ 14001018
18SPAZ160010
Model specification
Nominal transmission
16SPBZ 125056
17SPBZ 140056
-100373
1SDROS
Appearance and shaft height
Appearance and shaft height
Production and overall fire
Increased size
Local size
Output torque 1
238200
436200
685500||t t||702200
Output torque2
108300
213600
278000
618200
822100
966900
1131000
Model specification
Nominal transmission
SPBZ 112056-
SPBZ125056-100
17SPBZ 1400 56100 37322420
18SPBZ 160056-10039622760
3.2 Marking of reducer
Appearance and shaft height
No matching
JB/T6999-1993
The marking of reducer includes model,
level, specification, nominal transmission ratio, assembly type and standard number. Its marking method: Reducer
3.3 Marking example:
JBXX×X-XX×X
Standard number
Nominal transmission ratio
Assembly type
JB6999-1993
Standard number
|Nominal transmission ratio = 100
Specification is 630
First assembly type
Two-stage planetary transmission plus fixed-axis cylindrical gear
Double-row planetary gear reducer
Output torque
165000
21360K
618200
822100
966900
3.2 Reducer marking
JB/T69991993
The reducer marking includes model, final
level, specification, nominal transmission ratio, assembly type and standard number. Its marking method: reducer
3.3 Marking example:
Basic parameters
JB××××-××××
Standard number
Nominal transmission ratio
Assembly type
JB6999-1993
Standard number
Nominal transmission ratio=100
Specification is 630
First assembly type
Two-stage planetary transmission plus fixed axis cylindrical gear
Double-row planetary gear reducer
The nominal diameter D of the internal gear pitch circle of the reducer shall comply with the provisions of Table 6. Table 6 Nominal diameter D of the internal gear pitch circle
The nominal center distance of the fixed axis gear transmission of the reducer shall comply with the provisions of Table 7. Table 7 Nominal center distance a
The nominal transmission ratio i of the reducer shall comply with the provisions of Table 8. Table 8
Gear tooth width coefficient of reducer
Where:
Tooth width coefficient of planetary gear b=0.17~0.2
Tooth width:
Nominal diameter of pitch circle of internal gear.
Nominal transmission ratio i
Tooth width coefficient of fixed axis cylindrical gear b=0.35~0.410
Tooth width:
Where:wwW.bzxz.Net
Nominal center distance of a pair of fixed axis gears.
JB/T 69991993
Gear module m of reducer shall comply with the provisions of GB1357, see Table 9. Table 9 Gear module m of reducer.
The basic tooth profile of reducer gear shall comply with the provisions of GB1356. Number of planetary gears n,=3.
5 Technical requirements
5.1 Machine body, machine housing, machine base, machine cover
5.1.1 The machine body, machine housing, machine base shall be made of HT300; the machine cover shall be made of HT250. Their mechanical properties shall not be lower than those specified in GB9439. Welding parts are allowed.
5.1.2 Aging treatment shall be carried out.
The machine body, machine housing, and machine cover shall not be allowed to seep or leak oil. 5.1.3
For the dimension tolerance zones of the inner and outer holes of the machine body, casing and cover and the bearing holes, the form and position tolerances of the mating surfaces and end faces, and the surface roughness, please see Table 10.
Dimension tolerance zone
Base and casing
Cover and casing or body
Casing, body and internal gear
Bearing hole of casing, body
Bearing hole of cover
Casing and casing
Body and casing
GB1801
Shape and position tolerance
GB1184
Cylindricity
Total runout of end face
Circular runout
Surface roughness
GB1031
JB/T69991993
The parallelism tolerance of the axis of the bearing hole of the fixed-axis casing, measured on the bearing span, shall not exceed the value specified in Table 11. Table 11
Bearing span Lo
Parallelism tolerance
5.2 Planet carrier
≤125
>125~280
>280~560
>560~1000
5.2.1 The planet carrier adopts QT600-3, and its mechanical properties shall not be lower than the specified values ​​of GB1348 ductile iron castings. It is allowed to use materials with equivalent mechanical properties for welding or assembly. Heat treatment hardness: 190～270HB.
Planet shaft hole distance relative error t, not greater than the specified value in Table 12. Table 12
Center distance a
Relative error! .
>180~630
Parallelism tolerance Φt of the axis of the planet shaft hole to the axis of the planet carrier. Not greater than the specified value in Table 13. Table 13
Span of pivot point Lo
In f=f)
>50~125
Note: When the planet carrier is single-arm, Le shall be the support thickness of the planet carrier. >125~280
And f--Axis parallelism tolerance in the x-direction and y-direction on the full tooth width. 5.2.5
>280~560
The radial circular runout of the axis of the planetary shaft hole to the axis of the planetary carrier shall not be greater than the value specified in Table 14. Table 14
Center distance a
Radial circular runout
The limit deviation f of the center distance a shall comply with the value specified in Table 15. Table 15
Center distance a\
Note: 1)
~120
Includes the center distance of fixed axis gear transmission.
>560~630
～800
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