JB/T 5868-1991 General technical requirements for printed winding DC servo motors
Some standard content:
Mechanical Industry Standard of the People's Republic of China
General Technical Conditions for Printed Winding DC Servo Motors Subject Content and Scope of Application
JB5868-91
This standard specifies the product classification, technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of printed winding DC servo motors.
This standard applies to printed winding DC servo motors (hereinafter referred to as motors) with a base outer diameter within the range of 55 to 400 mm. This standard is used together with the special technical conditions for printed winding DC servo motors. 2 Reference standards
GB2900.26
GB5872
GB7345
GB7346
GB10405
3 Product classification
3.1 Product type
Basic technical requirements for rotating electrical machines
Electrical terminology Controlled micro motor
Technical conditions for packaging of controlled micro motor
Basic technical requirements
Controlled micro motor
Controlled micro motor:
Basic appearance and structural type
Controlled micro motor
Model naming method
The model naming of the motor shall comply with the provisions of GB10405 "Model naming method for controlled micro motors", and shall be composed of motor seat number, product name code, performance parameter code, derived code, etc. And it is expressed in the following order and form: Door
3.2 Frame number
Derived code
Performance parameter code
Product name code
Frame number
3.2.1 According to the provisions of GB7346 "Basic appearance and structure type of control micro motor", the frame number is expressed by the outer diameter of the motor frame (unit: mm).
3.2.2 Product name code
3.2.2.1 According to the provisions of GB10405 "Naming method of control micro motor model", the capital Chinese pinyin letter SN is used to represent the printed winding DC servo motor.
3.2.2.2 When the motor is assembled with components such as tachometer generator, rotary transformer, photoelectric encoder, electromagnetic brake, reducer, etc. to form a unit, the letter C represents the tachometer generator, the letter X represents the rotary transformer, the letter M represents the photoelectric encoder, the letter Z represents the electromagnetic brake, and the letter D represents the reducer. The component code is placed after the motor name code. Approved by the Ministry of Machinery and Electronics Industry on October 24, 1991 and implemented on October 1, 1992
3.2.3 Performance parameter code
The performance parameter code of the motor is composed of the serial number "01, 02, 99". The meaning of the performance parameter represented by the derived code of the motor is indicated by the letters A, B, C..\, but the letters I, O, etc. shall not be used. The meaning of the letters shall be specified in the special technical conditions.
3.2.5 Model examples
3.2.5.1 Standard type
3.2.5.2 Reducer type
3.2.5.3 Unit
3rd derivative product code
Performance parameter code
Product name code (printed winding DC servo motor) Frame size (Frame outer diameter 160mm)
SN-J03B
2nd derivative product code
Performance parameter code
With reducer
Product name code (printed winding DC servo motor) Frame size (Frame outer diameter 110mm
2nd derivative product
Performance parameter code
With reducer
Electromagnetic brake
Photoelectric encoder
Tachometer generator
Product name code (printed winding DC servo motor) Frame size (frame outer diameter ≤ 200mm)
3.3 Structural type
JB5868-91
3.3.1 The structural type of the motor is with flange and mounting stop on the end face, which can be installed vertically or horizontally. For products with special requirements, its structural type shall comply with the provisions of special technical conditions. 3.3.2 Basic shaft extension type
The basic shaft extension type of the motor is an ordinary flat key chain slot shaft extension. The shaft extension and keyway dimensions shall comply with the provisions of GB7346. For products with special requirements, its shaft extension type and dimensions shall comply with special technical conditions. 4 Technical requirements
Environmental conditions for use
The environmental conditions for use of motors with a frame size less than 160mm shall comply with the requirements of Class 1 or Class 2 environmental conditions specified in GB7345. For products with a frame size greater than 160mm and with special requirements, the environmental conditions for use may refer to the provisions of this standard for special technical conditions. 4.2 Electrical schematic
4.3 Rated technical data
4.3.1 Rated power
The rated power of the motor shall comply with the provisions of the special technical conditions. 4.3.2 Rated torque
The rated torque of the motor shall comply with the provisions of the special technical conditions. 4.3.3 Rated voltage
The rated voltage of the motor shall comply with the provisions of the special technical conditions. 4.3.4 Rated current
The rated current of the motor shall comply with the provisions of the special technical conditions. 4.3.5 Speed range
The speed range of this series of motors is 1500~6000r/min, with a tolerance of ±10%. The specific speed of each product shall comply with the provisions of the special technical conditions.
4.3.6 Forward and reverse speed difference
Apply the rated voltage to the motor and measure the no-load speed in the forward and reverse directions. The ratio of the difference between the no-load speed in the forward and reverse directions to the average value of the no-load speed is the forward and reverse speed difference, and its value shall comply with the provisions of the special technical conditions. 4.4 Terminals and lead wires
4.4.1 Lead wire method
The lead wire method of the motor can be lead wire, terminal block, plug and socket or threaded terminal. 4.4.2 Marking
The lead wires of the motor should be marked with different colors to indicate their "+" and "-". When using terminal blocks, plugs and sockets or threaded terminals, the markings should be clear and accurate.
JB5868-91
The "+" and "-" marks of the motor should comply with the provisions of the special technical conditions. The strength of the motor terminals or lead wires should comply with the relevant provisions of Article 3.9 of GB7345. 4.5 Appearance and assembly quality
4.5.1 Appearance
The appearance of the motor should comply with the relevant provisions of Article 3.2.1 of GB7345. 4. 5.2 Appearance and installation dimensions
The appearance and installation dimensions of the motor shall comply with the provisions of the special technical conditions. 4.5.3 Axial clearance
The axial clearance of the motor shall comply with the provisions of Table 1. Table 1
Machine base outer diameter
Axial clearance
4.5.4 Shaft extension radial runout
0.05~0.15
0.05~0.20
The radial runout of the outer circle matching surface of the motor shaft extension shall comply with the provisions of Table 2. Table 2
Machine base outer diameter
Shaft extension radial runout
70~160||tt| |Coaxiality of the mounting mating surface and verticality of the mounting mating end surface 4.5.5
>160~250
The coaxiality of the motor mounting mating surface and the verticality of the mounting mating end surface shall comply with the provisions of Table 3. Table 3
Machine base outer diameter
Coaxiality of the mounting mating surface
Verticality of the mounting mating end surface
No-load starting voltage
The no-load starting voltage of the motor shall comply with the provisions of Table 4: Motor rated voltage
70~160
No-load starting voltage (rated voltage
JB5868-91
4.6 Insulation dielectric strength
The armature winding of the motor should be able to withstand the test voltage specified in Table 5 for 1 minute with a test power frequency of 50Hz, and there should be no insulation breakdown. The peak value of the winding leakage current should not be greater than 5mA. (The leakage current does not include the current consumed by the equipment capacitor). Table 5
Rated voltage of the motor
>20~60
>60~115
>115~220
Measure the insulation resistance after the test, and the result should comply with the provisions of Article 4.7. When repeating the insulation dielectric strength test, the test voltage is 80% of the specified value. 4.7 Insulation resistance
Insulation dielectric strength test voltage
500-15
750-23
1000-30
1500-4s
The insulation resistance between the armature winding of the motor and the housing should be not less than 100M under normal test climate conditions, not less than 50MQ under low temperature conditions specified in special technical conditions, and not less than 10MQ under high temperature conditions specified in special technical conditions. After the constant damp heat test, the insulation resistance measured in the box should be not less than 2Ma. The voltage value of the megohmmeter used for insulation resistance inspection should comply with the provisions of Table 6. Table 6
Insulation dielectric strength test voltage
588~1000
4.8 Rotation direction
Mgohmmeter voltage
From the extension end of the drive shaft of the motor, the positive direction of the shaft rotation is specified to be clockwise. For double-axle extension motors, the inspection of the rotation direction should also follow the above principles, or from the commutator end, the positive direction of the shaft rotation is specified as counterclockwise. However, this must be clearly stated in the special technical conditions.
4.9 Overspeed
The motor is applied with 120% of the rated voltage to make it run without load for 2 minutes. Its fasteners should not be loose, and the structural parts should not produce deformation that affects normal operation. The motor should be able to operate normally. 4.10 Armature resistance
When the brushes are not taken into account, the armature resistance of the motor should meet the specified value of the special technical conditions. 4.11 Back EMF coefficient
The back EMF coefficient of the motor should not be less than the specified value of the special technical conditions. 4.12 Torque coefficient
The torque coefficient of the motor should not be less than the specified value of the special technical conditions. 4.13 Electromechanical time constant
The electromechanical time constant of the motor should not be greater than the specified value of the special technical conditions. 4.14 Armature inertia
JB5868-91
The armature inertia of the motor shall not be greater than the specified value of the special technical conditions. 4.15 Overload
When the motor is running stably at rated voltage, it shall be able to withstand an overload test of 120% rated torque for 10 seconds. As a result, the structural parts shall not produce deformation that affects normal operation, and the motor shall be able to work normally. 4.16 Weight
The weight of the motor shall not be greater than the specified value of the special technical conditions. 4.17 Temperature rise
When the motor is running stably at rated working conditions, its temperature rise limit shall not exceed the specified value of the special technical conditions. 4.18 Low temperature
The motor shall be able to undergo low temperature tests under specified low temperature environmental conditions. At the end of the low temperature test, the insulation resistance and no-load starting voltage of the motor shall be checked immediately. The insulation resistance shall comply with the provisions of Article 4.7. The no-load starting voltage shall not be greater than twice the value specified in Article 4.4.6, and the armature and structural parts shall not produce harmful deformation that affects normal operation. 4.19 High temperature
The motor shall be able to undergo high temperature tests under the specified high temperature environment conditions. During the test, the motor runs at no load at the rated voltage. Immediately after the test, check the insulation resistance and insulation dielectric strength of the motor. The results shall comply with the provisions of Articles 4.7 and 4.6. The armature and structural parts shall not produce harmful deformation that affects normal operation. The grease of the bearings shall not overflow. 4.20 Fixed amplitude vibration
The motor shall be able to withstand the fixed amplitude vibration test under the conditions specified in Table 7. After the test, the motor shall not have loose fasteners or damage. The structural parts shall not produce harmful deformation that affects normal operation. The motor shall be able to operate normally. Table 7
Outside the base
Double amplitude
Shaft extension direction
Horizontal, upward, downward
Test time
2h in each direction, 6h in total
During the fixed amplitude vibration test, the power-on mode, monitoring items and methods of the motor shall comply with the provisions of the special technical conditions. 4.21 Specified pulse shock
The motor shall be able to withstand the specified pulse shock test with a half-sine wave and a duration of 11ms under the conditions specified in Table 8. After the test, the motor fasteners shall not be loose or damaged. The structural parts shall not produce harmful deformation that affects normal operation. The motor shall be able to operate normally. Table 8
Machine base outer diameter
Peak impact acceleration
Shaft extension direction
Horizontal, upward, downward
Number of impacts
5 times in each direction, 30 times in total
During the pulse impact test, the power-on mode, monitoring items and methods of the motor shall comply with the provisions of the special technical conditions. 4.22 Steady damp heat
The motor shall be able to withstand a constant damp heat test of 90% to 95% relative humidity, 40 ± 2°C, and last for 96 hours. At the end of the test, the insulation resistance measured in the box shall not be less than 2Mα. The motor shall not have obvious deterioration of the surface quality and rust that affects normal operation. 4.23 Life
JB5868-91
The motor shall be able to work normally and continuously for 500 hours in an environment of i5 to 35°C without replacing the brushes. During this period, the direction of rotation of the motor should be changed every 8 hours of cumulative operation. It is allowed to clean the brush powder every 100 hours of cumulative operation. The installation method of the motor during the life test should comply with the provisions of the special technical conditions. After the test, the motor parts should be free of damage and can work normally. Check that its rated technical data should comply with the provisions of Article 4.3 of this standard. 5 Test method
5.1 Test conditions
5.1.1 Climate conditions
Should comply with Article 3.1.1 of GB7345. 5.1.2 Test power supply
DC power supply with a ripple factor of less than 3%.
5.1.3 The accuracy of the test instrument
Not less than Class 1 during the inspection test and acceptance test, and not less than Class 0.5 during the identification test and periodic test. 5.1.4 Installation of the motor
Unless otherwise specified, the motor should be installed horizontally on the standard test bracket specified in the special technical conditions for testing. 5.1.5 Stable temperature shall comply with Article 3.1.5 of GB7345. 5.2 Appearance and assembly quality
5.2.1 Appearance
The appearance quality of the motor shall comply with Article 4.4.1. 5.2.2 Appearance and installation dimensions
Use a measuring tool that can ensure the dimensional accuracy requirements to check the appearance and installation dimensions of the motor, and the results shall comply with Article 4.4.2. 5.2.3 Axial clearance
The motor is firmly installed axially and horizontally, and the micrometer is placed on the top of the shaft. The force specified in the special technical conditions is applied axially to the shaft, first in one direction and then in the opposite direction. The difference between the two readings of the micrometer is the axial clearance. The result shall comply with Article 4.4.3. 5.2.4 Shaft extension radial runout
The motor housing is fixed. When the shaft rotates, use a micrometer to measure the radial runout at three locations at the shaft extension fitting position, and the maximum value shall comply with Article 4.4.4.
5.2.5 Coaxiality of the mounting mating surface and verticality of the mounting mating end face Fix the motor rotor, rotate the stator, and use a micrometer to measure the radial runout and end face total runout of the mounting mating surface. The difference between the maximum and minimum readings of the micrometer is used as the coaxiality and verticality errors, respectively. For motors with a frame size greater than 200mm, it is also allowed to use equivalent methods that can ensure accuracy for measurement, and the results should comply with the provisions of Article 4.4.5. 5.2.6 No-load starting voltage
The motor is applied with rated voltage and runs no-load for 5 minutes, and then the voltage on the armature winding is gradually increased from zero evenly and slowly until the shaft starts to rotate evenly and continuously. Measure three times in each direction of rotation, for a total of six times. Record the voltage that causes the shaft to start rotating evenly and continuously each time, and the maximum value is the no-load starting voltage. It should comply with the provisions of Article 4.4.6. 5.3 Lead wires or terminals
5.3.1 The color of the motor lead wires, the wiring markings of the terminal board, plugs and sockets or threaded terminals shall comply with the provisions of Article 4.5.2. 5.3.2 Strength of lead wires
The length of each lead wire of the motor shall be at least not less than 200mm or as specified in the special technical conditions. Each lead wire shall be able to withstand a tensile force of 9N. The test shall be carried out in accordance with the method specified in Article 3.9.1 of GB.7345. The lead wire shall not be broken after the test. The insulation layer and core wire shall not be damaged. 5.3.3 Strength of threaded terminals
Each threaded terminal of the motor shall be able to withstand a gradually applied torque of 0.5N·m and maintain it for 5 to 10s. The test shall be carried out in accordance with the method specified in Article 3.9.2 of GB7345. After the test, there shall be no displacement or damage between the threaded terminal and the surrounding structure. 35
5.4 Insulation dielectric strengthwwW.bzxz.Net
JB5868-91
Insulation dielectric strength shall be checked in accordance with the method specified in Article 3.7 of GB7345. The result shall comply with the provisions of Article 4.6. 5.5 Insulation resistance
Insulation resistance shall be checked in accordance with the method specified in Article 3.8 of GB7345. The result shall comply with the provisions of Article 4.7. 5.6 Direction of rotation
Apply a DC voltage with the correct polarity and less than the rated value to the motor, and its direction of rotation shall comply with 4.8. 5.7 Overspeed
When the motor is unloaded, adjust the voltage so that it runs at 120% of the rated voltage for 2 minutes. The result should comply with the provisions of Article 4.9. 5.8 Rated technical data
Connect the motor according to Figure 2, apply the rated voltage to the motor, and make it run at the rated working state. Measure its torque, current, speed, and determine its output power. The result should comply with the provisions of Article 4.3. Measurement
5.9 Armature resistance
Use a double-arm bridge or other instruments that can ensure the measurement accuracy to measure the armature resistance of the motor when converted to 20°C. The result should comply with the provisions of Article 4.10.
5.10 Back electromotive force coefficient
Use other speed stabilizing devices to drag the tested motor to run as a generator without load, and measure the output potential of the motor at the rated speed. The result should comply with the provisions of Article 4.11.
5.11 Torque coefficient
According to the test results of Article 5.8, the torque coefficient is obtained by dividing the torque by the current. The result shall comply with the provisions of Article 4.12. 5.12 Electromechanical time constant
The motor is unloaded, and the armature is applied with rated voltage to make its speed reach a stable state. Use the energy consumption braking method or other methods that can ensure accuracy, and use a light oscilloscope to capture the waveform curve of the current changing with time. Obtain the electromechanical time constant of the motor on the curve, and the result shall comply with the provisions of Article 4.13.
5.13 Armature inertia
Measure the armature inertia of the motor according to the method specified in Article 3.10 of GB7345. The result shall comply with the provisions of Article 4.14. 5.14 Overload
Wire according to Figure 2, apply the rated voltage to the motor, and make it run at 120% of the rated load for 10s. The result shall comply with the provisions of Article 4.15.
5.15 Weight
Weigh the weight of the motor with a scale whose inductance is not greater than 1% of the weight of the object being measured. The result shall comply with the provisions of Article 4.16. 5.16 Temperature rise
The motor is installed on the temperature rise test bracket and heat sink specified in the special technical conditions. The temperature rise test is carried out using the point thermometer method or the method specified in Article 3.13 of GB7345. The result shall comply with the provisions of Article 4.17. The structural type of the temperature rise test bracket and heat sink can refer to the provisions in the appendix of the national standard GB10401 permanent magnet DC torque motor. For products with an outer diameter of the base less than 200mm. It is stipulated that a single heat sink is used, and the side length of the heat sink should be three times the outer diameter of the base. For products with an outer diameter of 36
JB5868-91
and a base greater than α200mm. It is stipulated that a double heat sink is used, and the side length of the heat sink should be twice the outer diameter of the base. The thickness of the heat sink shall refer to the provisions of the corresponding frame number in GB10401. The heat sink is made of aluminum alloy and is anodized to a black surface.
5.17 Low temperature
The motor is installed on the specified standard test bracket and placed in the test box. The motor is not powered, and the box temperature drops to the low temperature limit value specified in the technical conditions, with a temperature difference of ±2°C, and insulation is carried out. At the end of the test, the insulation resistance and no-load starting voltage of the motor are checked in the box. The results shall comply with the provisions of Article 4.18.
The insulation time during the low temperature test shall comply with the provisions of the special technical conditions. 5.18 High temperature
The motor is installed on the specified standard test bracket and placed in the test box. The box temperature gradually rises to the high temperature limit value specified in the special technical conditions, with a temperature difference of ±2°C. During the test, the motor runs at no-load at the rated voltage. At the end of the test, the insulation resistance of the motor is checked in the box. Immediately after leaving the box, the insulation dielectric strength test is carried out according to the retest voltage. The results shall comply with the provisions of Article 4.19. The holding time during the high temperature test shall comply with the special technical conditions. 5.19 Constant amplitude vibration
The motor shall be firmly mounted on the test bracket, which shall be fixed on the test bench. The bracket shall transmit the vibration to the motor with the minimum loss. According to the method specified in Article 3.18.1 of GB7345 and the requirements of Article 4.20 of this standard, the motor shall be subjected to a constant amplitude vibration test. The result shall comply with the provisions of Article 4.20.
5.20 Specified pulse impact
The motor shall be firmly mounted on the test bracket, which shall be fixed on the test bench. The bracket shall transmit the impact to the motor with the minimum loss. According to the method specified in Article 3.19.1 of GB7345 and the requirements of Article 4.21 of this standard, the motor shall be subjected to a specified pulse impact test. The result shall comply with the provisions of Article 4.21.
5.21 Constant damp heat
Before the test, apply anti-rust grease to the motor shaft extension and mounting surface. The motor is not powered on and pre-treated in a test chamber at 40±5℃ for 3h. Then the constant humidity test is carried out according to the method specified in Article 3.21.1 of GB7345 and the requirements of Article 4.22 of this standard. The results shall comply with the provisions of Article 4.22.
5.22 Life
The motor is tested in accordance with the requirements of Article 4.23. The load condition and power-on time of the motor during the test are shown in Table 9. The results shall comply with the provisions of Article 4.23.
Motor load condition
No-load operation
1/2 rated load
Rated load
Inspection rules
6.1 Test classification
Motor tests are divided into four types:
Inspection test
Acceptance test
Identification test
Periodic test
Test time
6.2 Inspection test items and rules
JB5868-91
Each motor should be inspected and tested according to the inspection items and basic sequence specified in Table 10. The motor can be put into storage as a qualified product only after all inspection and test items are qualified.
Inspection
Appearance and installation dimensions
Terminal and lead wire marking
Axial clearance
Radial runout of shaft extension
Coaxiality of installation matching surface and verticality of installation matching end surface
Dielectric strength of insulation
Insulation resistance
Direction of rotation
No-load starting voltage
Rated technical data
6.3 Acceptance test items and rules
6.3.1 The acceptance test items are the same as the inspection test items. 6.3.2 Acceptance rules
Technical requirements Chapter and clause
4.4.1,4.4.2
Test method Chapter and clause
Acceptance rules shall be implemented in accordance with Article 4.3 of GB7345. The qualified quality level AQL is 2.5. 6.4 Identification test items and rules
Identification test items, basic sequence and prototype number shall be specified by the special technical conditions in accordance with Table 11. The identification test rules shall be implemented in accordance with the relevant provisions of Article 4.4 of GB7345. Table
Technical requirements
Test items
All inspection test items
Terminal or lead strength
Armature resistance
Back electromotive force coefficient
Torque coefficient
Electromechanical time constant
Armature inertia
Test method
5.3.2,5.3.3
Identification test Test
1, 2, 3, 4
1, 2, 3, 4
1, 2, 3, 4
1, 2, 3, 4
1, 2, 3, 4
Prototype number
Cycle test
1, 2, 3, 4
1, 2, 3, 4
1, 2, 3, 4|| tt||1, 2, 3, 4
Constant damp heat
Cycle test items and rules
Technical requirements
JB5868-91
Continued Table 11
Test methods
Identification test
1, 2, 3, 4
1, 2, 3, 4
1, 2 , 3, 4
1, 2, 3, 4
1, 2, 3, 4
Prototype number
Periodic test
1, 2, 3, 4
1, 2, 3, 4
1, 2, 3, 4
1, 2, 3,
The periodic test items, basic sequence and prototype number shall be specified in the special technical conditions according to Table 11. The periodic test rules shall comply with GB7345, Section 4.5. Quality assurance period
The quality assurance period of the motor shall be implemented in accordance with the relevant provisions of Article 5 of GB7345. The storage period of the motor can be stipulated as one year, two years or five years according to the packaging method of the product. The specific time is stipulated by the special technical conditions. The service life of the motor is calculated from the unsealing of the package as one year and two and a half years (the cumulative working time does not exceed the service life). It is stipulated by the special technical conditions according to the specific situation.
8 Marking, packaging, transportation and storage
The factory motor should be marked with a nameplate, and the nameplate content should at least include: 8.1
Product name and model
Product number
Manufacturing Guangbiao or factory name
Manufacturing date or production batch number
8.2 The packaging of the motor shall be implemented in accordance with the provisions of GB5872 "Technical Conditions for Control Micromotor Packaging". 8.3 The packaging box or packaging box should be handled with care during transportation to avoid collision or knocking. It is strictly forbidden to put it together with corrosive objects such as acids and alkalis. The motor should be stored in a clean, well-ventilated warehouse with an ambient temperature of -5°C to +30°C and a relative humidity of no more than 75%. The air must not contain corrosive gases.
Additional Notes:
This standard was proposed and managed by the Xi'an Micromotor Research Institute of the Ministry of Machinery and Electronics Industry. This standard was drafted by the Xi'an Micromotor Research Institute. The main drafters of this standard are Fan Cheng, Wu Hengti, and Wen Zhihong. 39
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.