JB/T 10221-2000 Technical requirements for YZRSW series eddy current brake wound rotor two-speed three-phase asynchronous motors for tower cranes
Some standard content:
Mechanical Industry Standard of the People's Republic of China
JB/T10221
2000-11-29
2001-01-01 Small Cable
Wa Xian Pole Understanding
JB/T102212000
Art Standard
4 Type, basic parameters and dimensions
5 Technical requirements
6 Inspection rules
7 Marking, packaging and warranty period
Appendix (Appendix of Standard)
Appendix B (Appendix of Standard)
JB/T102212000
This standard is based on the YZRW series vertical and metallurgical sheet eddy current brake winding rotor-phase difference motor, retaining the B pole performance unchanged, and adding 4 poles high speed gear. This standard is formulated to meet the requirements of fast lifting, speed change with load, hook positioning, etc. for large and medium-sized machines. This standard is released and implemented for the first time.
Appendix A and Appendix B of this standard are the standard protection records. This standard is proposed by Jiamusi Explosion-proof Motor Research Institute. This standard is under the jurisdiction of Jiamusi Anti-screw Motor Research Institute. The drafting unit of this standard: Jiamusi Explosion-proof Motor Research Institute. The main participating units of this standard: Jiangshang Special Motor Co., Ltd., Hu Electric Motor Factory, China Yangtze River Shipping Group Motor Factory. The main drafters of this standard: Tan Yulin, Miao Feng, Zou Nengyu. This standard is explained by Jiamusi Explosion-proof Motor Research Institute. H
鸡噬魁鹿哇艺丽
弦邪瘾艷
JB/T102212000
This standard specifies the type, basic parameters and dimensions, technical requirements, inspection rules, marking, packaging and warranty requirements of YZRSW series eddy current brake winding rotor two-speed three-phase guide motors for tower cranes. This standard is applicable to various construction machinery eddy current brake winding rotor two-speed three-phase motors (hereinafter referred to as motors), and all series of motors derived from this series of motors can refer to it. 2
Cited standards
The provisions contained in the following standards shall constitute the provisions of this standard by reference in this standard. When this standard is reprinted, the versions shown are all valid. All standards will be revised. The parties using this standard should explore the possibility of using the latest version of the following standards: G8 191 - 1990
GB 755-2000
GB/T997-1981
GB/T 1032-1985
GB/T 1096-1979
GB/T 1993-1993
Pictorial markings for packaging, storage and transportation
Rating and performance of rotating electrical machines
Code for motor structure and installation type
Test methods for three-phase asynchronous motors
Dimensions of common flat key type (valid in 1990) Cooling methods for rotating electrical machines
Dimensions and output power levels of rotating electrical machines Part 1: Frame sizes 56 to 400 and flange sizes 55 to 1080 GB/T. 4772. 1-1999
GB/T 4942. 1-1985
Motor housing protection grade
GB 10068 - 2000
GB 10069. 3-1988
GB/T12351-1990
GB/T 12665-1990
GB [4711 - 1993
JB/T9615.1-2000
JB 7840-1995
Measurement, evaluation and limit of mechanical vibration perturbation of motors with shaft center height of 56mm or more. Method for determination and limit of noise of rotating cam motors. Environmental technical requirements for tropical rotating motors
Requirements for vortex heat test of motors under normal environmental conditions. General safety requirements for small and medium-sized condensing motors
Test method for insulation between buried windings of AC low-voltage motors. Technical conditions for single-phase asynchronous motors with eddy current brake windings for YZR series starting and metallurgical use. JB/T 9615. 2-2000
AC low voltage motor scattered embedded winding turn-to-turn insulation test limit 2000-11-29
2001-01-01 cable
3 Terminology
JB/T102212000
Rated braking torque: the braking torque of eddy current brake when the excitation winding is thermally stable at 100T/min. 3.1
3.2 Limited braking torque: The braking torque of the eddy current brake when the brush winding is thermally stable at 950~1000r/min. 3.3 The rated excitation current can meet the rated braking torque and the excitation current required for the limited braking torque. 4 Type, basic parameters and dimensions
4.1 The protection level of the motor housing is IP44, and the anti-sweep level of the terminal box is IP54: the external protection level of the eddy current brake is P00. 4.2 The cooling method of the motor is IC411 (see GB/T1993). 4.3 The working system of the motor is high/low speed S3-40% (see GB755), and the working system of the eddy current brake is S3-15%. 4.4 The structure and installation type of the motor are IM1001, I1003 (see GB/T755). 4.5 The rated frequency of the motor is 50Hz and the rated voltage is 380V. The stator winding has 6 outlets, and the number of outlets of the rotor winding is: a) When a single collector ring is used, there are 3 outlets, and the wiring method is as specified in Figure 1; b) When a double collector ring is used, there are 6 outlets, and the single winding wiring method is as specified in Figure 2, and the double winding wiring method is as specified in Figure 3: c) Other wiring methods that can meet the performance requirements of the motor can also be used. 4
JB/T10221
4.6 The corresponding relationship between the rated power, synchronous speed, rotor moment of inertia, rotor tight voltage, and rated braking torque and limited braking torque of the eddy current brake and the frame number of the motor shall comply with the provisions of Table 1. Table
Conversion moment of inertia
Rated power
Frame size
225H1- 4/8
22532- 4/B
25cM1- 4/8
24 / 24
30 / 30
250M2- 4/5
137137
280S-4/8
2E0 - 4/8
55/ 55
Synchronous rotation
1500/750
1500/750
15907750
1500/750
1590/750
1500/750
Single winding
Double winding
Rotor on the road telephone
256/254
（252
269/254
317/315
304）
558/319
311,310
360/347
Double winding 1
208/211
274/271
336/328
324/305
3557360
Note: 1 According to the needs of users, the eddy current brake of the motor can be matched according to the corresponding relationship in the table. 2) The numbers in brackets are the open circuit voltage of the single collector ring. 4.7 The peak current of the low speed/high speed cutting current of the single collector ring motor shall not be greater than 2.5 times the rated current. 4.8 The tolerance of the open circuit voltage of the rotor winding is ±7.5%. 4.9 The power supply of the eddy current brake excitation winding is DC, and the rated excitation voltage is 80±15%. Rated
Eddy current brake
kg tm2
4.10 The installation dimensions and tolerances of the motor shall comply with the provisions of Table 2, and the external dimensions shall not exceed those specified in Table 2 (see Figure 4 for the external dimensions of the motor). 3
Extension, 1) If the position of the hole is measured, the period AJZ may not be equal to the core 2) The reverse inch dial limit error wire bracket beat rate movement. Install
M42×3
M56×2
Move 2JM1001 and IML003 machines to make clothing film, weak energy and flangeless motors 4
3) Due to the male extension GBT [570 provisions inspection female. 4) The shaft extension is only the size of the shaft extension, and for the four-axis type, the size depends on the actual situation. 5) The word "teaching" in the bracket is the outer size of the motor, and the size after it is the size of the motor shaft extension (GB/1096) shall comply with the provisions of Table 3. Table 4 The radial runout tolerance of the shaft extension diameter at half the length of the motor shaft extension shall not exceed the provisions of Table 1. Table 5 The radial runout tolerance of the shaft extension diameter ～ 30 ～ 120 ... Table 5
Rail center height H
225 ~ 250
The flatness tolerance of the motor foot support plane should not be greater than 0.25m. The symmetry tolerance of the motor shaft extension keyway should not be greater than the provisions of Table 6. 4. 15
Keyway density F)
Parallelism tolerance
Symmetry tolerance
5 Technical requirements
JB/T102212000
5.1 The motor shall meet the requirements of this standard and shall be manufactured in accordance with the drawings and documents approved by the prescribed procedures. 5.2 The motor shall be able to operate at rated speed when used under the following conditions. 5.2.1 The altitude shall not exceed 000m. If the motor is specified to be used at an altitude of more than 10:30m, it shall be handled in accordance with the provisions of GB/T755. 5.2.2 The ambient air temperature shall not exceed 40. If the motor is specified to be used in an ambient air temperature higher or lower than the above provisions, it shall be handled in accordance with the provisions of GB/T755.
5.2.3 The minimum ambient air temperature is -15℃. 5.2.4 The average maximum relative humidity of the wettest month is 905, and the average minimum temperature of the month is not higher than 25℃. 5.2.5 Frequent starting, braking (electrical or mechanical) and reversing. 5.2.6 Frequent mechanical shock and impact.
5.3 The deviation of the power supply voltage and frequency from the rated value during the operation of the motor shall comply with the provisions of GR/T755. 5.4 The motor is speed-regulated by changing poles.
5.5 When the motor is started at low speed, additional impedance must be added to limit the average value of the starting current to no more than 2 times the rated current of the duty cycle. When the motor is started at high speed, it can be started directly at full voltage, and the average value of the starting current shall not exceed 5 times the rated current. 5.6 The motor adopts coupling or spur gear transmission. If spur gear transmission is adopted, the pitch circle diameter of the gear shall not be less than 2 times of the shaft extension diameter.
5.7 When the motor is in rated voltage and reference system, the guaranteed value of the ratio of maximum torque to rated torque shall not be less than 2.8 times, and the tolerance shall be -10% of the guaranteed value.
5.8 The insulation grade of the motor is F grade, and it can also be made into H grade. F grade insulation motor is suitable for places where the ambient air temperature does not exceed 40℃: H grade insulation motor is suitable for places where the ambient air temperature does not exceed 60℃. When the altitude and ambient air temperature meet the requirements of 5.2, the temperature rise limit or allowable temperature of each heating part of the motor shall not exceed the requirements of Table 7. The interval of overflow or temperature value rounding is 1. If the altitude or ambient air temperature of the test site is different from that specified in 5.2, the temperature rise limit should be corrected according to the provisions of (G3/T755. Table 7
Heating parts of motor
Winding temperature rise [resistance method
Bearing allowable temperature (thermometer method)
Thirsty current brake Armature surface recorded high temperature (thermometer method) F grade edge
155 yuan
150℃
H satin insulation
150℃| |tt||Note: The allowable bearing temperature refers to the value at the ambient air temperature specified in 5.2. When the bearing is exposed to an ambient air temperature lower than the specified temperature, the actual bearing temperature should be the difference between the measured temperature and the specified ambient air temperature and the actual ambient air temperature. 5.9 When the three-phase power supply is balanced, the deviation between any phase of the three-phase no-load current of the motor and the average value of the two phases should not exceed 10% of the three-phase average value.
JB/T102212000
5.10 The insulation resistance of the stator and rotor windings of the motor should not be lower than the value obtained by the following formula in the hot state. 3,
10to +
Where: K, stator winding insulation resistance S: U stator rated voltage V;
R-rotor winding insulation resistance 9:
S-rotor winding open circuit voltage:
P— The rated power of the motor is k.
The insulated resistance of the eddy current brake excitation winding should not be less than 1 grade in the hot state. (1)
5.11 The winding of the motor should be able to withstand a withstand voltage test for 1min without breakdown. The rated frequency of the test voltage is 50Hz and it should be as sinusoidal as possible. The effective value of the voltage is: 1000V+2U1 for the rotor and 1000V+42 for the eddy current brake excitation winding. 1500V+2 times the rated excitation voltage.
5.12 The motor should be able to withstand the short-term over-torque test of the maximum torque value (allowable to take into account tolerance) specified in 5.6 of this standard in the hot state and with the torque gradually increased, and last for 15s without sudden speed change, stalling or harmful deformation. At this time, the voltage and frequency should maintain the rated value.
5.13 The maximum speed of the motor is 2.5 times the synchronous speed. The motor should be able to withstand an overspeed test of 2 times the maximum speed when it is unloaded, which lasts for 2 minutes. After the overspeed test, if there is no permanent abnormal deformation and no other defects that hinder the motor from running normally, it is qualified.
5.14 The loose-embedded winding of the motor should be able to withstand the inter-turn insulation impulse voltage test without breakdown. The test method is carried out in accordance with JB/T9615.1, and its impulse current peak value is in accordance with the provisions of 1B/T9615.2. 5.15 After the motor winding is tested for 6 cycles in accordance with the 40℃ alternating damp heat test method specified in GB/T12655, the pure insulation resistance should not be less than the provisions of 5.10, and it should be able to withstand the repulsion test specified in 5.11 without breakdown, but the effective value of the test voltage is 0.85 times the voltage specified in 5.11, and the test time is 1 minute: 5.16 The motor rotor should be calibrated for dynamic balance, and the eddy current brake output should be calibrated for static balance. 5.17 The effective value of the vibration velocity measured by the motor when it is not loaded shall not exceed the value specified in Table 8. When the effective value of the vibration velocity is measured, the rounding interval is 0.01.
Seat No.
Vibration Intensity
JB/T102212000
253, 280
The A-weighted sound power level of the motor measured when it is not loaded shall not exceed the value specified in Table 9. The tolerance of the noise value is 3dB (A), the rounding interval is 0.5, and the air gap unevenness of the motor shall not exceed the provisions of Table 10. Table 10
Table 5 - nominal value;
- unevenness, which is defined as:
noise level
6 n,-8,-8, 8- 8.8, 8,8
Where 6,,, are the air gap values measured from the distance, 5.20 Derived products
5.20.1 The motor can be made into a humid tropical type according to the provisions of GB/T12351. 8
JB/T102212000
5.20.2 The motor can be made into a product with a rated frequency of 60Hz, and its rated voltage is 330V and 440V. 5.20. The maximum allowable speed of the 360Hz motor and the over-voltage test at no load are opposite to those of the 50Hz motor. 5.21 The reliability of the motor is stipulated as follows: when the motor service life is 2.5 years, the reliability should not be less than 0.95. 5.22 The motor terminal pot should be equipped with a grounding terminal, and an external grounding terminal should be set on the base. A grounding mark should be placed near the grounding terminal. This mark should be guaranteed to be indelible during the entire service life of the motor. 5.23 The stator terminal box of the motor is located in the base, and the wires can be led out from both sides of the motor. The wire outlet holes of the terminal box are screw holes, which are suitable for reverse connection of two hose connectors.
5.24 Each fastening screw of the motor must have anti-loosening measures. 6 Inspection rules
6.1 Each motor must be inspected and qualified before it can be shipped to the factory, and a product certificate should be attached. 6.2 Each motor should be inspected and tested: Inspection test items include: 8) Mechanical inspection (according to the provisions of 6.3): h) Determination of the insulation resistance of the stator, rotor windings, and eddy current brake excitation winding to the housing (the cold insulation resistance can be measured during the test, but the hot insulation self-resistance should be guaranteed not to be lower than the provisions of 5.10): c) Determination of the current resistance of the stator, rotor windings, and eddy current brake excitation windings in the actual cooling state: d) Determination of the open circuit voltage of the rotor winding: bzxz.net
e) Stator and rotor winding inter-insulation impulse withstand voltage test: f) Determination of no-load current and loss:
g) Winding phase-to-phase and winding and eddy current brake excitation winding to the housing voltage test. When the motor has only two leads, the winding phase-to-phase test is allowed to be carried out on the finished product:
h) Eddy current brake After the excitation winding of the motor is thermally stable, the rated braking torque, excitation voltage and excitation current are measured at 100r/min: i) Vibration measurement; j) Noise measurement: 6.3 Mechanical inspection of the motor includes: a) Rotation inspection: The motor should rotate smoothly and briskly without stagnation; b) Appearance inspection: Check whether the motor is assembled correctly, the surface paint should be completely dry, and there should be no defects such as stains, damage, cracks, etc. c) Inspection of installation dimensions, overall dimensions and key dimensions: d) Circular runout of shaft extension, flatness of base support plane, parallelism of yoke line to base support plane and symmetry of keyway. The flatness of base support plane and symmetry of keyway are allowed in parts II inspection: e) Inspection of contact between brush and collector ring. 6.4 Type tests must be carried out in any of the following situations: a) when the manufacturer conducts the first trial production or small batch trial production after the finalization of the model; b) when the design or process changes are sufficient to cause certain performance and parameter changes; c) when there is an unacceptable deviation between the inspection test results and the previous type test results; d) the motors produced in batches shall be regularly sampled and the sampling test time shall be once a year. When the number of samples to be sampled is too large, the sampling test interval shall be 9.
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