This standard applies to the types, basic parameters and dimensions, technical requirements, inspection rules and test methods, and marking and packaging requirements of YG series three-phase asynchronous motors for rollers. This standard specifies YG series three-phase asynchronous motors for rollers (hereinafter referred to as motors), and all motors derived from this series can also refer to it. JB/T 8733-1998 Technical conditions for YG series three-phase asynchronous motors for rollers (frame size 112~225) JB/T8733-1998 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T8733
1998-05-28
112—225
1998-11-01
JB/T8733
YG series roller table three-phase asynchronous motors are divided into two types, YGa and YGb, according to their uses. YGa type roller table three-phase asynchronous motors (referred to as YGa motors in this standard) can be started, braked or reversed, and are mainly used to drive the working rollers of the metallurgical industry alone. YGb type three-phase asynchronous motor for conveyor (referred to as YGb motor in this standard) usually runs in one direction only and is mainly used to drag the conveyor rollers of the metallurgical industry alone: ​​the products of this standard are divided into two designs, YGa and YGb, according to the purpose from the original single performance, and the number of specifications is increased from 27 to 123, so that the products of this standard can better meet the requirements of working conditions and further expand the range of user selection. Appendix A of this standard is the appendix of the standard.
Appendix B of this standard is the appendix of the suggestion.
This standard is proposed and managed by the National Technical Committee for Standardization of Rotating Electric Machines. This standard is drafted by Shanghai Electric Science Research Institute of the Ministry of Machinery Industry, Dalian Electric Machine Factory, Suzhou Electric Machine Factory, Chongqing Special Electric Machine Factory, Sichuan Electric Machine Factory, Shanghai Hoisting Electric Machine Factory, etc. The main drafters of this standard are: Yu Xiuren, Sun Shuijing, Hong Wenzhi, Yan Jiuyu, Hu Yunkang, Cheng Ke. I
Ji Jia Xin Kui Wa Yi Dao
1 Scope
Yi Mian 112225
JB/T87331998
This standard applies to the types, basic parameters and dimensions, technical requirements, inspection rules and test methods, and marking and packaging requirements of YG series three-phase asynchronous motors for use in railways.
This standard specifies YG series three-phase asynchronous motors for use in railways (hereinafter referred to as motors), and all kinds of motors derived from this series can also be implemented by reference.
1 Cited Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T755—87
Basic technical requirements for rotating electrical machines
GB/T4942.1—85Protection classification of motor housingsGB/T 1993--93
GB/T 997—81
Cooling methods for rotating electrical machines
Motor structure and installation type code
GB/T4772.1—84Motor dimensions and tolerancesMotors with frame sizes 36—400 and flange numbers FF55—FF1080 or FT55—FT1080
GB/T1032--85
Test methods for three-phase asynchronous motors
Damp heat test requirements for motors used under normal environmental conditionsGB/T12665—90
GB 191—90
GB/T 10069—88
GB/T 10068-—88
JB/Z 294—87
3 Terminology
3.1 Technology transfer
Packaging, storage and transportation pictorial symbols
Determination method and limit of noise of rotating electrical machines
Determination method and limit of vibration of rotating electrical machines
Test method of insulation between voltages of loose-embedded windings of AC low-voltage electrical machines When the motor is braked to zero speed by reverse connection, if the power supply is not cut off, the motor will accelerate in the reverse direction to a speed close to the synchronous speed. This whole process of reverse braking and reverse acceleration is called reverse rotation. 3.2 Acceleration coefficient
The ratio of the speed reached by the motor after each acceleration in reverse operation to the synchronous speed is called the acceleration coefficient of the motor. 3.3 Working cycle
During the continuous reverse operation of the motor, the time interval between the corresponding states of the two phases of reversal is called the working cycle of the motor. Its value is equal to the sum of the power-on time and the power-off time of each reversal, measured in seconds. 3.4 Loss coefficient
The heat generated by the loss during the braking process and acceleration process of the motor during reverse operation is different. The constant K used to express the quantitative relationship between these two heat poles is called the loss coefficient of the motor. The loss coefficient is related to the braking method and is an indispensable parameter for calculating the dynamic constant.
3.5 Dynamic constant
The motor is started frequently under the specified load duration rate. After braking or reversing, the temperature rise of the stator winding reaches the temperature rise limit. Under this condition, the product of the motor's loss coefficient, speed coefficient, the number of starts, brakes or reversals per hour and the total moment of inertia on the motor shaft is called the motor's dynamic constant. The dynamic constant is an important performance indicator that characterizes the motor's working capacity. The higher the dynamic constant, the more times the motor is allowed to start, brake or reverse per hour when the load is constant. 4
Type, basic parameters and specifications
4.1 The motor's housing protection level is IP54 (see GB/T4942.1). 4.2 The motor's cooling method is IC410 (see GB/T1993) 4.3 The motor's structure and installation type are IMB3, IMB5, IMB35 (see GB/T997). 4.4 The motor's rated voltage is 380V, the rated frequency is 50Hz, and the Y connection method is used. 4.5YGa motors are mainly used for intermittent duty, and their temperature rise is the dynamic constant assessment at rated frequency and voltage, connected to S5, and the duty cycle is 40%.
YGb motors are mainly used for continuous duty, and their temperature rise is the power assessment at rated frequency and voltage, when operated in S1T. 4.6The correspondence between the frame number of YGa motors and the number of poles, stall torque, stall current and the dynamic constant at S5-40% shall comply with the provisions of Table 1.
Frame number
Stalling torque
Stalling current
Dynamic band number
kg·m'/h
Frame number
Stalling torque
JB/T8733
Table 1 (end)
Stalling current
Note: The numbers 1 and 2 after S, M, and L represent two specifications of the same frame number. A
Dynamic constant
kg'm/h
The corresponding relationship between the frame number of the YGb motor and the number of poles, the stall torque and the power in the S1 working system shall comply with the provisions of Table 2. 4.8 Motor dimensions and tolerances
The installation dimensions and tolerances of the motor shall comply with the provisions of Tables 3 to 5: the external dimensions shall not be greater than the provisions of Tables 3 to 5. 4.8.1
Frame number
JB/T8733
Stalled rotor short
Frame number
JB/T8733
Table 2 (end)
Note: The numbers 1 and 2 after S, M and L represent two specifications of the same frame number. kw
Stalling torque
JB/T8733
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Frame number
YG112L
4.5, 8,10.12||tt ||YG132M6.8.10.12.16
YG180S6.8.10.12.16
YG16CL
YG185L
, 8. 10, 1212
8.10.12,16.20
10,12,16,20
254127
39.5279121
818159
305133
YG112-~181
65=:81
35178311149±4.075
YG225M10.12,16.20
U)GF-G, GE tolerance is (+\),
2) S, K hole position is based on the axis of the shaft, 3) size is the maximum limit.
4) R is the distance from the convex joint surface to the shaft shoulder. 9
YG200,YG225
Table 5B35 type (base with feet, no flange on the end) motor
Basic limit
110±0.43
140±0.50
20 . -8± 67.5
Intensity
300250
Basic vehicle
400350=0.018450
Dimensions
AB AE ADHD
235 240 205240445
265265220|290|195
3153152503
6036029
5415320
JB/T8733
The dimensions and tolerances of the motor shaft extension key shall conform to the provisions of Table 64.8.2
Shaft extension diameter
10 8.03t
4.8.3 The radial runout tolerance at half the length of the motor shaft extension shall conform to the provisions of Table 7. Table 7
Shaft extension diameter
Drawing runout tolerance
>30 ~ 50
>50~80
4.8.4 The radial runout tolerance of the flange stop to the motor axis and the end face runout tolerance of the flange mating surface to the motor axis shall comply with the provisions of Table 8
Diameter of flange stop
Drawing runout tolerance
180~230
Parallelism tolerance of the motor axis to the foot support surface shall comply with the provisions of Table 9 Table 9
Shaft center height H
112~225
Note: L is the length of the motor shaft.
2. 5H≤L≤4H
Parallelism tolerance of both ends of the shaft
The flatness tolerance of the motor foot support surface shall comply with the provisions of Table 10. 4.8.6
The largest dimension of AB or BB
Flatness tolerance
>160~～250
>250~400
Note: AB is the distance between the outer edges of the motor foot (end view), BB is the distance between the outer edges of the motor foot (visual measurement). The symmetry tolerance of the keyway on the motor shaft extension shall comply with the provisions of Table 11. 4.8.7
Keyway
Symmetry tolerance
5 Technical requirements
230350
≥400~630
5.1 The motor shall comply with the requirements of this standard and be manufactured in accordance with the drawings and technical documents approved through the prescribed procedures. 5.2 The motor shall be able to operate at rated speed under the following altitude, ambient air temperature and ambient air relative humidity conditions. 5.2.1 The altitude shall not exceed 1000 m.
JB/T87331998
5.2.2 The maximum temperature of the ambient air varies with the season, but does not exceed 40℃. 5.2.3 The minimum temperature of the ambient air is -15℃. 5.2.4 The average maximum relative humidity of the wettest month is 90%, and the average minimum temperature of the month is not higher than 25℃. 5.3 The deviation of the power supply frequency and voltage from the rated value during the operation of the motor shall comply with the provisions of GB/T755. 5.4 The guaranteed values ​​of the locked-rotor torque, locked-rotor current and dynamic constant of the YGa motor at rated voltage and frequency and S5-40% shall comply with the provisions of Table 1.
5.5 The guaranteed value of the locked-rotor torque of the YGb motor at rated voltage and frequency and the output power at S1 working system shall comply with the provisions of Table 2. 5.6 Under rated voltage and frequency, the guaranteed value of the ratio of the maximum torque to the rated torque of the YCb motor is 2.5. 3.7 Under the condition that the voltage and frequency are kept proportional (voltage compensation is allowed below 30Hz), and the voltage waveform is close to the sine waveform, the motor is allowed to operate within the range of 10 to 70Hz, but the main performance indicators are different from the guaranteed values ​​specified in Table 1 and Table 2. When the user needs it, the manufacturer can provide the main performance data of the motor at a certain frequency. 5.8 The tolerance of the guaranteed value of the motor electrical performance shall comply with the provisions of Table 12. Table 12
Electrical performance name
Maximum torque
Locked-rotor torque
Locked-rotor current
Dynamic band number
Guaranteed value -10%
Guaranteed value -15%
Guaranteed value +20%
Guaranteed value -10%
5.9 Motor insulation, YGa motor adopts H grade, YGb motor adopts F grade or H grade. When the altitude and ambient air meet the requirements of 5.2, the motor stator winding temperature rise limit (resistance method) is 130K for H grade and 110K for F grade, and the allowable bearing temperature (thermometer method) should not exceed 95℃.
If the altitude of the test site or the ambient air temperature is different from the requirements of 5.2, the temperature rise limit should be corrected according to the requirements of GI/T755. 5.10 The motor shall be able to withstand the increase of speed to 170% of its rated value for 2 minutes without harmful deformation under no-load conditions. 5.11 The insulation resistance of the motor stator winding shall not be less than 0.53Mα after the hot state or temperature rise test. 5.12 The stator winding of the motor shall be able to withstand the withstand voltage test for 1 minute without breakdown. The frequency of the test power supply is 50Hz and it shall be a sine wave as much as possible. The effective value of the voltage is 2070V. 5.13 The stator winding of the motor shall be able to withstand the inter-turn impulse withstand voltage test without breakdown. The test impulse voltage value is 2900V. 5.14 After 6 cycles of the alternating damp heat test at 40℃, the insulation resistance of the stator winding of the motor shall not be less than 0.53MQ. It can also withstand the voltage withstand test specified in Article 5.12 without breakdown, but the effective value of the voltage is 1760V and the test time is 1min. 5.15 When the three-phase power supply is balanced, the deviation of any one phase of the three-phase no-load current of the motor from the three-phase average value should not be greater than 10% of the three-phase average value.
5.1h During the motor inspection test, the no-load and stalled currents and losses should be within a certain data range, which should ensure that the motor meets the requirements of 5.4 to 5.8.
5.17 Calculation of dynamic constants
The dynamic constant is calculated according to the following formula:
DKK.-Z-ZJ
Where D is the dynamic constant, kgm/h;
K is the loss coefficient, K=1 when the motor is only starting; K=3# when reverse braking
K=4# when reversing
Acceleration coefficient:
Kp=n/nl6
The largest dimension among AB or BB
Flatness tolerance
>160~～250
>250~400
Note: AB is the distance between the outer edges of the motor foot (end view), BB is the distance between the outer edges of the motor foot (visual measurement). The symmetry tolerance of the keyway on the motor shaft extension shall comply with the provisions of Table 114.8.7
Keyway
Symmetry tolerance
5Technical requirements
230350
≥400~630
5.1 The motor shall comply with the requirements of this standard and be manufactured according to the drawings and technical documents approved by the prescribed procedures. 5.2 The motor shall be able to operate at rated speed under the following altitude, ambient air temperature and ambient air relative humidity conditions. 5.2.1 The altitude shall not exceed 1000 m.
JB/T87331998
5.2.2 The maximum temperature of the ambient air varies with the seasons, but does not exceed 40°C. 5.2.3 The minimum temperature of the ambient air is -15°C. 5.2.4 The average maximum relative humidity of the wettest month is 90%, and the average minimum temperature of the month is not higher than 25°C. 5.3 The deviation of the power supply frequency and voltage from the rated value during the operation of the motor shall comply with the provisions of GB/T755. 5.4 The guaranteed values ​​of the locked-rotor torque, locked-rotor current and dynamic constant of the YGa motor at rated voltage and frequency and S5-40% shall comply with the provisions of Table 1.
5.5 The guaranteed value of the locked-rotor torque of the YGb motor at rated voltage and frequency and the output power at S1 working system shall comply with the provisions of Table 2. 5.6 Under rated voltage and frequency, the guaranteed value of the ratio of the maximum torque to the rated torque of the YCb motor is 2.5. 3.7 Under the condition that the voltage and frequency are kept proportional (voltage compensation is allowed below 30Hz), and the voltage waveform is close to the sine waveform, the motor is allowed to operate within the range of 10 to 70Hz, but the main performance indicators are different from the guaranteed values ​​specified in Table 1 and Table 2. When the user needs it, the manufacturer can provide the main performance data of the motor at a certain frequency. 5.8 The tolerance of the guaranteed value of the motor electrical performance shall comply with the provisions of Table 12. Table 12
Electrical performance name
Maximum torque
Locked-rotor torque
Locked-rotor current
Dynamic band number
Guaranteed value -10%
Guaranteed value -15%
Guaranteed value +20%
Guaranteed value -10%
5.9 Motor insulation, YGa motor adopts H grade, YGb motor adopts F grade or H grade. When the altitude and ambient air meet the requirements of 5.2, the motor stator winding temperature rise limit (resistance method) is 130K for H grade and 110K for F grade, and the allowable bearing temperature (thermometer method) should not exceed 95℃.
If the altitude of the test site or the ambient air temperature is different from the requirements of 5.2, the temperature rise limit should be corrected according to the requirements of GI/T755. 5.10 The motor shall be able to withstand an increase in speed to 170% of its rated value for 2 minutes without any harmful deformation when it is unloaded. 5.11 The insulation resistance of the motor stator winding shall not be less than 0.53Mα after the hot state or temperature rise test. 5.12 The stator winding of the motor shall be able to withstand a withstand voltage test for 1 minute without breakdown. The frequency of the test power supply is 50Hz and it shall be a sine wave as much as possible. The effective value of the voltage is 2070V. 5.13 The stator winding of the motor shall be able to withstand the inter-turn impulse withstand voltage test without breakdown. The test impulse voltage value is 2900V. 5.14 After 6 cycles of the alternating damp heat test at 40℃, the insulation resistance of the stator winding of the motor shall not be less than 0.53MQ. It can also withstand the voltage withstand test specified in Article 5.12 without breakdown, but the effective value of the voltage is 1760V and the test time is 1min. 5.15 When the three-phase power supply is balanced, the deviation of any one phase of the three-phase no-load current of the motor from the three-phase average value should not be greater than 10% of the three-phase average value.
5.1h During the motor inspection test, the no-load and stalled currents and losses should be within a certain data range, which should ensure that the motor meets the requirements of 5.4 to 5.8.
5.17 Calculation of dynamic constants
The dynamic constant is calculated according to the following formula:
DKK.-Z-ZJ
Where D is the dynamic constant, kgm/h;
K is the loss coefficient, K=1 when the motor is only starting; K=3# when reverse braking
K=4# when reversing
Acceleration coefficient:
Kp=n/nl6
The largest dimension among AB or BB
Flatness tolerance
>160~～250
>250~400
Note: AB is the distance between the outer edges of the motor foot (end view), BB is the distance between the outer edges of the motor foot (visual measurement). The symmetry tolerance of the keyway on the motor shaft extension shall comply with the provisions of Table 114.8.7
Keyway
Symmetry tolerance
5Technical requirements
230350
≥400~630
5.1 The motor shall comply with the requirements of this standard and be manufactured according to the drawings and technical documents approved by the prescribed procedures. 5.2 The motor shall be able to operate at rated speed under the following altitude, ambient air temperature and ambient air relative humidity conditions. 5.2.1 The altitude shall not exceed 1000 m.
JB/T87331998
5.2.2 The maximum temperature of the ambient air varies with the seasons, but does not exceed 40°C. 5.2.3 The minimum temperature of the ambient air is -15°C. 5.2.4 The average maximum relative humidity of the wettest month is 90%, and the average minimum temperature of the month is not higher than 25°C. 5.3 The deviation of the power supply frequency and voltage from the rated value during the operation of the motor shall comply with the provisions of GB/T755. 5.4 The guaranteed values ​​of the locked-rotor torque, locked-rotor current and dynamic constant of the YGa motor at rated voltage and frequency and S5-40% shall comply with the provisions of Table 1.
5.5 The guaranteed value of the locked-rotor torque of the YGb motor at rated voltage and frequency and the output power at S1 working system shall comply with the provisions of Table 2. 5.6 Under rated voltage and frequency, the guaranteed value of the ratio of the maximum torque to the rated torque of the YCb motor is 2.5. 3.7 Under the condition that the voltage and frequency are kept proportional (voltage compensation is allowed below 30Hz), and the voltage waveform is close to the sine waveform, the motor is allowed to operate within the range of 10 to 70Hz, but the main performance indicators are different from the guaranteed values ​​specified in Table 1 and Table 2. When the user needs it, the manufacturer can provide the main performance data of the motor at a certain frequency. 5.8 The tolerance of the guaranteed value of the motor electrical performance shall comply with the provisions of Table 12. Table 12
Electrical performance name
Maximum torque
Locked-rotor torque
Locked-rotor current
Dynamic band number
Guaranteed value -10%
Guaranteed value -15%
Guaranteed value +20%
Guaranteed value -10%
5.9 Motor insulation, YGa motor adopts H grade, YGb motor adopts F grade or H grade. When the altitude and ambient air meet the requirements of 5.2, the motor stator winding temperature rise limit (resistance method) is 130K for H grade and 110K for F grade, and the allowable bearing temperature (thermometer method) should not exceed 95℃.
If the altitude of the test site or the ambient air temperature is different from the requirements of 5.2, the temperature rise limit should be corrected according to the requirements of GI/T755. 5.10 The motor shall be able to withstand the increase of speed to 170% of its rated value for 2 minutes without harmful deformation under no-load conditions. 5.11 The insulation resistance of the motor stator winding shall not be less than 0.53Mα after the hot state or temperature rise test. 5.12 The stator winding of the motor shall be able to withstand the withstand voltage test for 1 minute without breakdown. The frequency of the test power supply is 50Hz and it shall be a sine wave as much as possible. The effective value of the voltage is 2070V. 5.13 The stator winding of the motor shall be able to withstand the inter-turn impulse withstand voltage test without breakdown. The test impulse voltage value is 2900V. 5.14 After 6 cycles of the alternating damp heat test at 40℃, the insulation resistance of the stator winding of the motor shall not be less than 0.53MQ. It can also withstand the voltage withstand test specified in Article 5.12 without breakdown, but the effective value of the voltage is 1760V and the test time is 1min. 5.15 When the three-phase power supply is balanced, the deviation of any one phase of the three-phase no-load current of the motor from the three-phase average value should not be greater than 10% of the three-phase average value.
5.1h During the motor inspection test, the no-load and stalled currents and losses should be within a certain data range, which should ensure that the motor meets the requirements of 5.4 to 5.8.
5.17 Calculation of dynamic constants
The dynamic constant is calculated according to the following formula:
DKK.-Z-ZJ
Where D is the dynamic constant, kgm/h;
K is the loss coefficient, K=1 when the motor is only starting; K=3# when reverse braking
K=4# when reversing
Acceleration coefficient:
Kp=n/nl-Z-ZJ
Where D is a dynamic constant, kgm/h;
K is a loss coefficient, K=1 when the motor is only started; K=3# when reverse braking
K=4# when reverse
Acceleration coefficient:
Kp=n/nl-Z-ZJ
Where D is a dynamic constant, kgm/h;
K is a loss coefficient, K=1 when the motor is only started; K=3# when reverse braking
K=4# when reverse
Acceleration coefficient:
Kp=n/nl
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