JB/T 3698-1992 Single-phase clutch motor

This standard specifies the type, basic parameters, structure, dimensions, technical requirements, test methods, inspection rules, marking and packaging requirements of single-phase clutch motors (capacitor operation). This standard applies to single-phase mechanical clutch motors used in industrial sewing machines. JB/T 3698-1992 Single-phase clutch motor JB/T3698-1992 Standard download decompression password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
JB/T3698
1992-06-16
Zhang Xianji
1993-01-01
Ji Jia Kui Lu Wa Yi Xian
1 Subject content and scope of application
JB/T36981992
JB369884
This standard specifies the type, basic parameters, structure, size, technical requirements, test methods, inspection rules, marking and packaging requirements of single-phase clutch motors (capacitor operation). This standard applies to single-phase mechanical clutch motors (hereinafter referred to as motors) used in industrial sewing machines. 2 Reference standards GB 5171 GB 755 GB 0651 GB 10068.1 GB10069.1 GB12665 ​​GB12350 GB2829 GB 2828
JB/Z294
Motor structure and installation type code
General technical requirements for small power motors
Basic technical requirements for rotating motors
Test methods for single-phase asynchronous motors
Vibration measurement methods and limit values ​​for rotating motors Vibration measurement methods and limit values ​​for rotating motors Noise measurement methods and limit values ​​for rotating motors Engineering measurement methods for noise Requirements for wet heat acid test for motors under normal environmental conditions Safety requirements for small power motors
Zhou Zhen Inspection Count sampling procedures and sampling tables Batch inspection Count sampling procedures and sampling tables Other packaging, storage and transportation graphic signs
Test methods for insulation between turns of AC low-voltage motors JB/DQ3619 General rules for product quality classification of small power motors 3 Types, basic parameters, structure and external installation dimensions 3.I The structure and installation type of the motor is IMB30, which is installed by contact with brackets. 3.2 The quota of the motor is a continuous quota based on the continuous working system (S1). 3 The rated voltage of the motor is 220V and the rated frequency is 50Hz. 3.4 The motor shall be manufactured according to the following rated powers: 120 (100), 180 (200), 250, 370 (400), 550 W. Note: The power level with loss is not superior. 3.5 The appearance and installation dimensions of the motor shall comply with the provisions of Figure 1 and Table 1. 3.6 The base shall be installed on a cradle-type base with an adjustable center height and a protective block. 4 Technical requirements
4.1 The motor shall comply with the requirements of this standard and be manufactured in accordance with the national samples and technical documents approved through the prescribed procedures. 4.2 The motor shall be able to operate at rated speed under the following conditions of altitude, ambient air temperature and ambient air relative humidity. 4.2.1 The altitude shall not exceed 1000m.
1992-06-16
1993-01-01
xeruoog
S200max
JB/T3698
4.2.2 The ambient air temperature varies with the seasons, but does not exceed 40℃. Note: If the motor is specified to be used at an altitude of more than 1000m or the ambient air temperature is still above 40℃, it shall be implemented in accordance with the provisions of Article 5.3.4 of GB755.
4.2.3 The average maximum relative humidity of the wettest month is 90%, and the average minimum temperature of the month is not higher than 25℃. 4.3 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 Article 4.3 of GB755. 4.4 At the rated voltage and rated frequency, the guaranteed value of the motor's torque and the ratio of the maximum torque to the rated torque shall comply with the provisions of Table 2.
Electric Vehicle
120(100)
180(200),250
370(400).550
JB/T3698
Stalling Torque/Rated Torque
Maximum Torque/Rated Torque
4.5At rated voltage and rated frequency, the guaranteed value of the ratio of the motor's stall current to the rated current is 7 times. 4.6At rated power, rated voltage and rated frequency, the guaranteed values ​​of the motor's efficiency and power factor shall comply with the provisions of Table 3. During the test, the pulling force applied to the pull rod shall be able to meet the rated power output of the motor, and the lighting power supply circuit. Table 3
120(100)
180(200)
370(400)
The tolerance of the guaranteed value of the motor electrical performance shall comply with the provisions of Table 4. Table 4
Power factor
Break torque
Locked rotor current
Maximum torque
Power factor
—0, 15(1 -7)
—(1—cns4>/6
-15% of guaranteed value
+20% of guaranteed value
-10% of guaranteed value
The motor adopts E longitudinal insulation. When the motor is unloaded and loaded, the temperature rise limit (resistance) of the stator winding shall comply with the provisions of Table 5.4.8
Note: During the temperature rise test, the motor should be installed on the insulation board. If installed on the iron pole, the rubber anti-intrusion block must be installed on the rocking base.K
4.9 When the motor runs at rated frequency and rated voltage and reaches a stable hot state, it should be able to withstand an over-torque test of 1.5 times the rated torque for 10 minutes. At this time, the slip rate should be less than 15%.4.1 The insulation resistance of the motor stator winding shall not be less than 20 in the cold state. MN, after the hot state or temperature test, should not be less than 2.0Mn1. 4.11 The stator winding of the motor should be able to withstand a withstand voltage test lasting 1 min without breakdown. The test voltage is 50 Hz, in the form of an actual sine wave, the effective value of the voltage is 1500. 3
JB/T3698
When inspecting and testing large quantities of motors, it is allowed to shorten the test time to 1s. The effective value of the test voltage is 1800V, and the test voltage is applied by a test rod.
4.12 The motor voltage insulation test is an impulse withstand voltage test for the inter-turn insulation of a specified winding. The impulse test voltage (peak value) is 1800V. There should be no fault waveform during the test. It is also allowed to be replaced by a short-time voltage increase test. The test is performed when the motor is no-load. The external applied voltage is 130% of the rated voltage for 1 minute. When the voltage value is increased to 130% of the rated voltage, the frequency is allowed to be increased at the same time, which should not exceed 115% of its rated value. No fault should occur after the test. 4.13 The motor should be able to withstand an increase in speed to 120% of its rated speed for 2 minutes under no-load conditions without causing harmful deformation. 4.14 Electric The effective value of the vibration velocity measured when the motor is running with the clutch closed and no-load should not exceed the provisions of Table 6. Table 6
Vibration velocity
Effective value of vibration velocity
4.15 The effective value of the A-weighted sound power level measured when the motor is running with the clutch closed and no-load should not exceed the provisions of Table 7. dB(A)
Motor power
Synchronous speed
Noise level
250~550
120~180
4.16 After the condensation heat test of the motor, the insulation performance shall meet the following requirements: a. The insulation resistance of the motor winding to the housing and between the windings shall not be less than 0.22M after 6 cycles of the alternating damp heat test, or shall not be less than 2Mn after 2 cycles of the constant damp heat test. b. The insulation resistance test of the motor winding to the housing and between the windings shall be able to withstand the 85.5 dead test voltage specified in Article 4.11 of this standard for 1 minute without breakdown. 4.17 When the motor is running at 1.06 times the rated voltage and no load, the leakage current of the motor in the hot state shall not be greater than 0.5mA. 4.18 When the motor is running at no load and rated load, the voltage at the capacitor terminal shall not exceed the rated working voltage of the capacitor. 4.19 When the clutch is in the closed state, the motor is started at a fixed frequency and rated positive voltage, and the speed rises from zero to a stable state, and the starting time is not more than: 5 8.
4.20 The time from the clutch and the inertia wheel to the clutch shaft reaching 80% of the stable speed is the acceleration time. If the time is continuous, it should not be more than 200 ms.
The time from the clutch and the inertia wheel to the clutch shaft completely stopping is the braking time. The braking time should not be more than 250ms. 4.21
The direction of the motor is counterclockwise (from the direction of the shaft extension end), and clockwise rotation should be available as needed. 4. 22
After the durability test, the motor should meet the following requirements: 4. 23
The insulation resistance of the winding should not be less than 50% of the value specified in Article 4.10; the voltage resistance test of the stator winding should comply with the requirements of Chapter 8 of GB5171: the insulation test between the stator windings should comply with 4.12 The requirements of the motor should not be loose, nor should there be any deformation or damage that endangers the safety performance. 4.24 The grounding device of the motor must comply with the provisions of GB12350. 4.25 The terminal of the motor stator winding and the wiring position of the terminal board (or socket) should be clearly marked. 4
JB/T36981992
4.26 The electrical distance between the motor and the creepage distance should not be less than 1.5mm and the creepage distance should not be less than 2.5mm. 4.27 If the user requires, lighting power can be provided, the power supply voltage is 12V, and the power is 15W or 2CW. 5 Test method
5.1 The electrical performance test items of the motor shall be carried out in accordance with CB9651. 5.2 The motor noise test shall be carried out in accordance with GⅡ10069.1. 5.3 The motor vibration test shall be carried out in accordance with GB10068.1, and the measuring point shall be configured on the fuselage. 5.4 The damp heat test of the motor shall be carried out in accordance with the provisions of GB12665. 5.5 The impulse withstand voltage test of the motor turn-to-turn insulation shall be carried out in accordance with the provisions of JB/7.294. The short-time voltage rise test shall be carried out in accordance with the provisions of GB9651.
5.6 The leakage current test of the motor shall be carried out in accordance with the provisions of GB12350. 5. Durability test
3.7.1 The motor shall operate normally for 48 hours at rated load and 1.1 times rated voltage, and then operate normally for 48 hours at rated load and 0.9 times rated voltage.
5.7.2 The motor shall be started 50 times without load at 1.1 times rated voltage and 50 times without load at 0.85 times rated voltage. The duration of each power supply start of the motor shall be at least equal to 10 times the time required to start to the rated speed, but not less than 10s. After each start, there should be a stop time to prevent over-running, which should be at least three times the continuous working time of the start. 5.8 The inspection of the grounding device of the motor shall be carried out in accordance with the provisions of GB12350. 5.9 The marking of the motor shall be inspected in accordance with the provisions of GB12350. 5.1 The electrical clearance and creepage distance of the motor shall be inspected in accordance with the provisions of GB 12350. 5.11 Test between starters
5.11.1 Install the motor to be tested on the platform, use a coupling to concentrically connect the shafts of the motor to be tested and the tachometer generator, and connect the output signal of the tachometer generator to the oscilloscope (or recorder). See Figure 2. Elastic pad
Tested motor
Coupling
/Tachometer generator oscilloscope (or recorder) Figure 2
Note: The tachometer generator should be a vertical current tachometer generator with a base size of 35” or less.②For the materials and dimensions of the coupling and elastic pad, refer to Appendix A.5.11.7 Adjust the pressure spring of the pull rod so that when the end of the pull rod is subjected to a pulling force of 202.5N, the motor's clutch is in the critical state of initial disengagement braking.
5.11.3 Lift the end of the pull rod with a pulling force of 35N, then turn on the power supply of the tested motor to start the motor. While the power is turned on: use an oscilloscope (or recorder) to record the changes in the output voltage waveform of the tachometer generator, and the time from the start of the speed to the stable speed is the time is the no-load starting time. See Figure 3.
JB/T3698
No-load starting time
5.11.4 After the first start, cut off the power supply to make the motor stop rotating completely, and then start the next start. Take the arithmetic mean of the three test results as the no-load starting time of the motor. 5.12 Acceleration and braking time test
5.12.1 Install the motor to be tested on the platform, install the inertia flywheel on the clutch shaft, and the flywheel torque of the inertia flywheel GD°=0.003kg·m. The motor to be tested is concentrically connected to the tachometer generator, and the output signal of the tachometer generator is connected to the oscilloscope (or recorder). See Figure 4. Inertia wheel
Motor to be tested
Note, inertia flywheel For materials and dimensions, see Appendix A. Elastic pad couplingWww.bzxZ.net
Tachometer
Oscilloscope (or recorder)
5.12.2 Adjust the pressure spring of the pull rod so that when the end of the pull rod is subjected to a 20.5N pulling force, the clutch of the motor is in the critical state of initial disengagement from the brake,
Connect the power supply of the motor to be tested and let the motor run without load, 5.12.3 Quickly lift the end of the pull rod with a pulling force of 35N, and quickly lower the pull rod after 26 seconds of operation. While operating the pull rod, use an oscilloscope (or recorder) to record the changes in the output voltage waveform of the tachometer generator, the acceleration time, and the reading of the braking time are shown in Figure 5. HN
JB/T3698
5.12.4 After the first test is completed Then, conduct a test every 2 seconds or so, and repeat the test five times. Take the arithmetic mean of the five test results as the acceleration time and braking time of the motor.6 Inspection rules
6.1 Each product can be shipped after passing the inspection, and it is accompanied by a product inspection certificate. 6.2 Each motor should undergo factory inspection. The factory inspection items include: 6.2.1 Mechanical inspection
Appearance inspection: The motor should be assembled completely and correctly, and the surface protective layer should be complete and even, without leakage, damage, cracks, etc.; b. Rotation inspection: When the motor rotates, it should be smooth and light, without stagnation, the sound should be uniform and harmonious without harmful noise, and the rotation should meet the requirements:
c. Inspection of installation dimensions and external dimensions. 6.2.2 Determination of DC resistance of stator winding in actual cold state. 6.2.3 Determination of insulation resistance of stator winding to housing and windings to each other. . 2.4 Voltage withstand test of stator winding to housing. See.2.5 Stator winding impulse withstand voltage test or short-time voltage rise test. 6.2.6 Determination of no-load current and loss (no-load characteristic curve shall be measured during type test, and the clutch shall be measured when in braking state). 6.2.7 Determination of stall current and loss (measured in cold state). 6.3 During factory inspection, each product shall be inspected for a and b in Article 6.2.1 of this chapter, and for Articles 6.2.3, 6.2.4, 6.2.5, 6.2.6, and 6.2.7. Other items may be inspected randomly. The inspection method shall be formulated by the manufacturer, but shall comply with the relevant requirements of GB2828. 6.4 Type inspection must be carried out in any of the following cases: a.
After the manufacturer has finalized the model, each time the manufacturer conducts trial production or small batch production; when the changes in the motor design, process and materials are sufficient to cause changes in certain performances; b.
When there is an unacceptable deviation between the factory inspection results and the previous type inspection results; regular spot tests of motors produced in batches shall be carried out at least once a year; d.
6.5 The type inspection items of motors include: all items of factory inspection;
Determination of stall torque:
Determination of maximum torque;
Determination of efficiency and power factor
Determination of capacitor terminal voltage!
Determination of stator winding overflow;
Over-torque test!
Determination of vibration speed
Determination of noise
Wet heat test;
Overspeed test:
Determination of leakage current:
Durability test
Determination of alarm when the motor starts;
Determination of clutch acceleration time and braking time, inspection of grounding device and mark
Inspection of electrical clearance and creepage separation.
5 Type inspection sampling adopts the secondary sampling plan in GB2829, and the discrimination level is DL-1. 6. 6
JB/T3698
Selection method According to the provisions of Article 4.9 of GB2829, six prototypes are selected and divided into two groups for risk avoidance test. f. 7A-type unqualified items
A-type unqualified items include withstand voltage test, grounding device and mark, leakage current, electrical clearance and creepage distance, insulation resistance, main items of nameplate (model, power, voltage, current and speed) and four items D, E, F and C in the installation specifications. All A-type unqualified items must be qualified.
6.8B-type unqualified items include:
vibration,
capacitor terminal voltage:
damp heat test;
turn insulation test or short-time voltage rise test, short-time over-torque test:
overspeed test:
durability test;
installation size;
efficiency·
power factor;
locked-rotor torque;
locked-rotor voltage:
maximum torque;
starting time!
Acceleration time!
Braking time.
Class B unqualified quality level and judgment array are in accordance with 6.2.1 of JB/DXQ3619.2. Marking, packaging, transportation and storage
Each motor must be firmly attached with a nameplate in a conspicuous position on the body. The nameplate material and the engraving method of the data and marks on the nameplate should ensure that the handwriting is not easily erased during the entire service life of the motor. 7.2 The items to be marked on the motor nameplate are as follows: Manufacturer name:
Motor name:
Motor model
Rated power,
Rated voltage:
Rated current:
Rated frequency;
Rated speed:
Insulation grade 1
Manufacturer's production year and month or production number:
Lighting power supply voltage and power;
Capacitance and capacitor working voltage:
Weight:
Wiring diagram.
JB/T3698
When the nameplate must be reduced, item m may not be indicated. The wiring diagram is allowed to be marked separately on the body. 7.3 The motor should be provided with an instruction manual (at least one copy should be provided to the same user and a batch of motors of the same model) and a product certificate together with the motor.
7.4 Anti-rust protection measures should be taken for the motor shaft extension. 7.5 The packaging of the motor should be firm and reliable and have moisture-proof measures to avoid moisture and damage during transportation. 7.6 The packaging box and marking of the motor should comply with the provisions of GB191. 7.7 There is no restriction on the means of transportation of the motor, but the motor must be protected from collision, rain and chemical corrosion during transportation. The motor should be stored in a clean, dry and well-ventilated warehouse with an ambient air temperature of -10 to 40°C. The air should not contain corrosive gases.
JB/T3698
Appendix A
Material and dimensions of inertia flywheel, coupling and elastic pad [Supplementary parts]
A1 The coupling shall comply with the provisions of Figure A1 and Table A1, and the material shall be aluminum. L
Speed ​​machine
The inertia flywheel shall comply with the provisions of Figure A1 and Table A2, and the material shall be steel. Al
15+g-087
A3 The elastic pad shall comply with the provisions of Figure A2.
For speed machine shaft
For clutch shaft
For clutch shaft
Additional instructions:
JB/T3698
This standard is proposed by the Small Power Motor Branch of the National Technical Committee for Standardization of Rotating Electric Machines. This standard is under the jurisdiction of the State Electric Science Research Institute of the Ministry of Machinery and Electronics Industry. This standard was drafted by the Guangzhou Electrical Science Research Institute of the Ministry of Machinery and Electronics Industry. The main drafters of this standard are Tan Bicheng, Liu Ji and Xu Zhichao.
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