JB/T 5867-1991 General technical requirements for coreless armature permanent magnet DC servo motors
Some standard content:
Mechanical Industry Standard of the People's Republic of China
JB/T5867-1991
General Technical Requirements for Coreless Armature Permanent Magnet DC Servo Motors
Issued on October 24, 1991
Implemented on October 1, 1992 by the Ministry of Machinery and Electronics Industry of the People's Republic of China
Mechanical Industry Standard of the People's Republic of China
General Technical Requirements for Coreless Armature Permanent Magnet DC Servo Motors
1 Subject Content and Scope of Application
JB/T 5867—1991
This standard specifies the general technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of coreless armature permanent magnet DC servo motors.
This standard applies to coreless armature permanent magnet DC servo motors (hereinafter referred to as motors) with a frame size not greater than 45. Coreless armature permanent magnet DC servo motors with a frame size greater than 45 can refer to this standard. Reference standards
GB2806
GB5872
GB7345
GB10405
3 Product classification
Motor model
Motor noise determination method
Control micro motor packaging technical conditions
Control micro motor basic technical requirements
Control micro motor model naming method
The motor model consists of the following parts
Model example
3.1.2 Frame number
Derived code
Performance parameter code
Product name code
Frame number
The first derived code
The first performance parameter code
Hollow cup armature permanent The outer diameter of the base of the permanent magnet DC servo motor is
The base number and its corresponding outer diameter are as specified in Table 1. Approved by the Ministry of Machinery and Electronics Industry on October 24, 1991: 20mm
Implementation on October 1, 1992
Base number
Base outer diameter
Note: 1) Not preferred
3.1.3 Product name code
JB/T5867-1991
The product name code uses uppercase Chinese pinyin letters SYK to represent hollow cup armature permanent magnet DC servo motor, which means: S represents servo motor, Y represents permanent magnet type, K represents hollow cup armature, for the unit form, the product name code is represented by SYK-口, C in the box represents tachometer, M represents encoder, and J represents gearbox. 3.1.4 Performance parameter code
The performance parameter code consists of two Arabic numerals 01 to 99. 3.1.5 Derived code
The derived code uses the Chinese phonetic letters "A", "B", "C" to indicate performance or structural derivation, but the letters "I" and "O" shall not be used.
Basic motor shape and structure type
The basic motor shape and structure type shall comply with the K1, K2, and K3 types specified in Appendix A. 3.3 Voltage level
This series of motors adopt 1.5, 3, 4.5, 6, 9, 12, .18, 24, 27, 36V voltage levels. 3.4 Electrical schematic diagram
The electrical schematic diagram is shown in Figure 1
4 Technical requirements
4.1 Operating environmental conditions
The operating environmental conditions of the motor should comply with the requirements of Level 1 or Level 2 in Table 1 of Article 1.1 of GB7345. The operating environmental conditions of the motor can also be in accordance with the provisions of Article 1.2 of GB7345.
4.2 Terminals
4.2.1 Wiring mode
The wiring mode of the motor terminal can be lead-out wires, threaded terminals, and terminals, which are specified by special technical conditions. 4.2.2 Lead-out marking
The lead-out wires are red and black, and the threaded terminals and terminals use the symbol "+"*" to indicate the positive and negative polarity of the motor, which are specified by special technical conditions.
4.2.3 Strength of lead-out wires, threaded terminals and terminals The strength of lead-out wires, threaded terminals and terminals shall comply with the provisions of Article 3.9 of GB7345. 4.3 Appearance and assembly quality
JB/T5867-1991
4.3.1 Appearance
The surface of the motor should not be rusted, There should be no bumps, scratches, or peeling of the coating. The fasteners should be firmly connected. The lead wires or terminals should be intact. The color and markings should be correct. The handwriting and content of the nameplate should be clear and accurate, and should not fall off. 4.3.2 Appearance and installation dimensions
The appearance and installation dimensions of the motor should comply with the provisions of Article 3.2. 4.3.3 Axial clearance
The axial clearance of the motor should comply with the provisions of the special technical conditions. 4.3.4 Radial clearance
The radial clearance of the motor should comply with the provisions of the special technical conditions. 4.3.5 Radial runout of the shaft extension
The radial runout of the motor shaft extension should comply with the provisions of Article 3.2. 4.3.6 Coaxiality of the mounting mating surface to the axis The coaxiality error of the motor mounting mating surface to the axis should comply with the provisions of Article 3.2. 4. 3.7 Verticality of the mounting mating end face
The verticality error of the motor mounting mating end face shall comply with the provisions of Article 3.2. 4.4 Direction of rotation
The motor is connected according to the lead-out markings. When viewed from the shaft extension end, the clockwise rotation direction of the motor is the positive direction. 4.5 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 in no-load speed in the forward and reverse directions to the average value of the no-load speed is the positive and reverse speed difference, and its value shall comply with the provisions of the special technical conditions. For motors running in one direction, no assessment is required. 4.6 Insulation dielectric strength
The conductive part of the motor shall be able to withstand the test voltage specified in Table 2 between the casing and the motor without breakdown or flying double, and the leakage current peak value of the winding shall not exceed 5mA.
Rated voltage Pressure
Test voltage
Frame 28 and below
(effective value)
Frame 32 and above
The test power frequency is 50Hz. During the test, the test voltage should rise slowly from zero to the specified value (at least 3s). During the entire test process, the voltage peak should not exceed 1.5 times the specified effective value. After the test, the insulation resistance should be measured according to 4.7. 4.7 Insulation resistance
Under normal test conditions, the insulation resistance between the conductive part of the motor and the casing should not be less than 100MQ2; under the extreme negative temperature conditions specified in the special technical conditions, the insulation resistance should not be less than 50MQ; under the corresponding high temperature conditions, the insulation resistance should not be less than 5M2; after the wet heat test, the insulation resistance should not be less than 1MQ.
4.8 Overspeed
The motor should be able to withstand a no-load overspeed test of 120% of the rated voltage for 2 minutes. After the test, the armature should not have harmful deformation that affects the performance.
No-load starting voltage
The no-load starting voltage of the motor shall comply with the provisions of the special technical conditions. 4.10 No-load current and no-load speed
The no-load current and no-load speed of the motor shall comply with the provisions of the special technical conditions. Rated data
JB/T5867-1991
The rated voltage, rated current, rated torque and rated speed of the motor shall comply with the provisions of the special technical conditions. 4.12 Terminal resistance
The terminal resistance of the motor shall comply with the provisions of the special technical conditions. 4.13 Torque constant and stall torque
The torque constant and stall torque of the motor shall comply with the provisions of the special technical conditions. 4.14 Moment of inertia and mechanical time constant
The moment of inertia and mechanical time constant of the motor shall comply with the provisions of the special technical conditions. 4.15 Temperature rise
When the motor works continuously under rated conditions, the temperature rise of the armature winding shall not exceed 75K. 4.16 Noise
The noise of the motor shall comply with the provisions of the special technical conditions. 4.17 Low temperature
The motor shall be subjected to low temperature test under the extreme negative temperature conditions specified in the special technical conditions. After the test, the insulation resistance shall comply with the provisions of Article 4.7. Check that the no-load starting voltage is not more than twice the value specified in Article 4.9. 4.18 High temperature
The motor shall be subjected to high temperature test under the high temperature conditions specified in the special technical conditions. After the test, the insulation resistance shall comply with the provisions of Article 4.7. After returning to the cold state, check that the no-load current and no-load speed shall still comply with the provisions of Article 4.10. 4.19 Fixed amplitude vibration
The motor shall be subjected to fixed amplitude vibration test in accordance with Article 3.18.1 of GB7345. After the test, the motor shall not have loose or damaged parts, and its no-load current and no-load speed shall comply with the provisions of Article 4.10. 4.20 Specified pulse shock
The motor shall be subjected to the specified pulse shock test with a peak value of 150m/s* shock acceleration in accordance with the provisions of Article 3.19.1 of GB7345. After the test, the motor shall not have loose or damaged parts, and its no-load current and no-load speed shall comply with the provisions of Article 4.10. 4.21 Steady damp heat
The motor shall be subjected to the steady damp heat test in accordance with the provisions of Article 3.21.1 of GB7345. After the test, the motor insulation resistance shall comply with 4.7. And the motor should not have obvious surface quality deterioration and rust. 4.22 Life
The motor life should comply with the special technical conditions. The changes in rated current and rated speed after the test should not exceed 30% of the life test.
4.23 Salt spray
When the special technical conditions require, the motor should be subjected to salt spray test in accordance with Article 3.25 of GB7345. After the test, the motor is disassembled for inspection. No part should have obvious corrosion and destructive deterioration. 4.24 Weight
The weight of the motor should comply with the special technical conditions. 5 Test method
5.1 Test conditions
5.1.1 Climate conditions
5.1.1.1 Normal climate conditions
According to Article 3.1.1.1 of GB7345.
5.1.1.2 Arbitration climate conditions
According to the provisions of Article 3.1.1.2 of GB7345.
5.1.1.3 Reference climate conditions
According to the provisions of Article 3.1.1.3 of GB7345.
5.1.2 Test power supply
JB/T5867-1991
When the ripple voltage is fully loaded, its ripple factor shall not exceed 2%. 5.1.3 Stable temperature
5.1.3.1 Stable temperature without power
According to 3.1.5.1 of GB7345
5.1.3.2 Stable working temperature with power
According to 3.1.5.2 of GB7345
5.1.4 Test instrument accuracy
Test instrument accuracy, inspection test and acceptance test shall not be lower than level 1, identification test and periodic test shall not be lower than level 0.5. 5.1.5 Mounting bracket
Unless otherwise specified, the motor shall be axially mounted horizontally on the standard test bracket specified in Appendix B for testing. 5.2 Terminals
5.2.1 Outlet marking
The motor outlet marking shall comply with the provisions of 4.2.2. 5.2.2 The strength of lead wires, threaded terminals and terminal blocks shall be tested in accordance with Article 3.9 of GB7345 and shall comply with Article 4.2.3. 5.3 Appearance and assembly quality
5.3.1 Appearance
Visually inspect the appearance quality of the motor and shall comply with Article 4.3.1. 5.3.2 Appearance and installation dimensions
Use a measuring tool that can ensure the accuracy requirements to check the motor appearance and installation dimensions and shall comply with Article 4.3.2. 5.3.3 Axial
Perform according to the method specified in 3.2.3 of GB7345. For motors with frame size 20 and below, apply 2.5N axial force to the sliding bearing and 5N axial force to the rolling bearing; for motors with frame size above 20, apply 5N axial force to the sliding bearing and 10N axial force to the rolling bearing. The axial clearance value shall comply with the provisions of Article 4.3.3.5.3.4 Radial clearance
According to the method specified in 3.2.2 of GB7345, on the shaft extension 5mm away from the bearing, vertically apply 0.5N (for sliding bearings) and 3N (for rolling bearings) to motors with a base of 20 or below; vertically apply 3N (for sliding bearings) and 5N (for rolling bearings) to motors with a base of 20 or above. The radial clearance value shall comply with the provisions of Article 4.3.4. 5.3.5 Shaft extension radial runout
According to the method specified in Article 3.2.4 of GB7345, the value shall comply with the provisions of Article 4.3.5. 5.3.6 The coaxiality of the mounting mating surface to the axis shall be carried out according to the method specified in Article 3.2.5 of GB7345, and the value shall comply with the provisions of Article 4.3.6. 5.3.7 Verticality of the mounting mating end face
The method specified in 3.2.5 of GB7345 shall be used, and its value shall comply with the provisions of 4.3.7. 5.4 Direction of rotation
The motor shall be energized and operated according to the markings in 4.2.2, and its direction of rotation shall comply with the provisions of 4.4. 5.5 Forward and reverse speed difference
The rated voltage of the motor shall be marked at the terminal according to the markings in 4.2.2, and the speed n1 and nz of the motor in the forward and reverse directions when it is no-load shall be measured. The speed difference shall be determined by formula (1):
2Jn-nl
×100%
The value shall comply with the provisions of 4.5.
5.6 Insulation dielectric strength
JB/T5867—1991
The method specified in 3.7 of GB7345 shall comply with the provisions of 4.6. 5.7 Insulation resistance
The test shall be conducted in accordance with the method specified in Article 3.8 of GB7345 and shall comply with Article 4.7. 5.8 Overspeed
The motor is subjected to 120% rated voltage and runs at no load for 2 minutes. It shall comply with Article 4.8. 5.9 No-load starting voltage
The motor is unloaded and the rotor is at any position. A voltage is applied to the terminal to gradually increase from zero until the shaft starts to rotate continuously. Perform three times in each direction and record the voltage when the shaft starts to rotate continuously each time. The maximum value is the no-load starting voltage, which shall comply with Article 4.9. 5.10 No-load current and no-load speed
The motor is subjected to rated voltage and runs at no load. The no-load speed and no-load current are measured. It shall comply with Article 4.10. 5.11 Rated data
The test shall be connected according to Figure 2. The motor is subjected to rated voltage and rated torque. The current and speed values are read. It shall comply with Article 4.11. ?
5.12 Terminal resistance
The motor under test is allowed to reach a stable temperature without power supply in the room. Figure 2
The armature resistance of the motor terminal is measured by the ammeter and voltmeter method at different positions (at least three positions) when the motor armature is blocked. During measurement, the wiring is as shown in Figures 3 and 4. The wiring in Figure 3 is suitable for measuring the resistance of the winding when the ratio of the internal resistance of the voltmeter to the resistance to be measured is greater than 200. The wiring in Figure 4 is suitable for measuring the resistance of the winding when the ratio of the internal resistance of the voltmeter to the resistance to be measured is less than 200. A DC power supply with stable voltage should be used. The current value during measurement should not be greater than 20% of the rated current of the winding to be measured. V
Measure the terminal resistance at three positions, take the average value and convert it into resistance at 20°C, which should comply with the provisions of Article 4.12. Rmoc=R[1+a(t-20)]
Wherein: Rm2oc
Terminal resistance at 20℃, 2;
R.—Measured average value of terminal resistance at 1℃, 2,—Temperature at measurement, C;
Resistance temperature coefficient of conductor, 1/℃.
5.13 Torque band number and stall torque
JB/T5867—1991
Drive the test motor to a speed close to the rated speed, measure the no-load output voltage U of the motor, and calculate the back EMF coefficient according to formula (3): U
Wherein: K,—back EMF coefficient, V/krmin-\; Speed when measuring U, r/min;
U—no-load voltage at speed n, V.
Calculate the torque constant of the motor according to formula (4): K = 9.55K,
where: K+torque constant, mNm/A,
—back electromotive force coefficient, V/(Krmin-1). Calculate the stall torque according to formula (5);
Wu Zhong: M-
Stalling torque, mNm;
U-—rated voltage, V;
Rm20*c
Terminal resistance at -20℃, 2:
K.—Torque constant, mNm/A.
Its value should comply with the provisions of 4.13.
Armature moment of inertia and mechanical time constant. 5.14
The armature moment of inertia is calculated according to the method specified in Article 3.10 of GB7345, and the mechanical time constant is calculated according to formula (6): Rm2acJa
Wherein,
mechanical time constant, ms;
Ja--armature moment of inertia, gcm;
K--torque constant, mNm/A;
Rmzoc--armature resistance at 20C, Q.
The value should comply with the provisions of Article 4.14.
5.15 Temperature rise
× 10t
The motor is installed on the standard test bracket specified in Appendix B, and then placed at room temperature to allow the motor to reach the stable temperature without power, and the armature winding resistance R.1 is measured, and the room temperature t1 at this time is recorded. Then, the rated torque is applied to the stable working temperature according to the special technical conditions, and the armature winding resistance R is measured, and the room temperature at this time is recorded. The temperature rise is calculated according to formula (7)
Where: 9.
Winding temperature rise. K;
9= RrrRe(235 +t)+ (t - t.)
The temperature when the armature resistance R is measured, ℃;
The temperature when the armature resistance R is measured, C;
The resistance of an armature winding at a stable temperature t, when it is not powered, 2; R.
The resistance of an armature winding at a stable operating temperature t, 2. R.
The temperature rise of the motor shall comply with the provisions of Article 4.15. It is also allowed to obtain the temperature rise of the armature winding by measuring the temperature rise of the housing surface. 5.16 Noise
The test shall be carried out according to the sound power level method specified in the motor noise determination method of GB2806. During the test, the motor shall run at no-load at rated voltage. The motor noise shall comply with the provisions of Article 4.16. 5.17 Low temperature
JB/T5867-1991
The motor is installed on a standard test bracket and placed in a test box without power. The box temperature drops to the low temperature specified in the special technical conditions. The motor reaches the stable temperature without power under this condition. After the test, it shall comply with the provisions of Article 4.17. 5.18 High temperature
The motor is installed on a standard test bracket and placed in a test box without power. The box temperature rises and remains at the high temperature specified in the special technical conditions to reach the stable temperature without power. Then load the motor to run at the rated state to reach the stable working temperature. After the test, it shall comply with the provisions of Article 4.18.
5.19 Constant amplitude vibration
The test shall be conducted in accordance with 3.18.1 of GB7345. Unless otherwise specified in the special technical conditions, the motor shall be operated at no-load at rated voltage during the test, and shall comply with 4.19 after the test. 5.20 Specified pulse shock
The test shall be conducted in accordance with 3.19.1 of GB7345. Unless otherwise specified in the special technical conditions, the motor shall be operated at no-load at rated voltage during the test. After the test, it shall comply with 4.20. 5.21 Constant damp heat
The test shall be conducted in accordance with 3.21.1 of GB7345, and shall comply with 4.21 after the test. 5.22 Life
The motor shall be installed horizontally on a standard test bracket at room temperature, powered on and operated at rated data, and shall comply with 4.22 after the test. 5.23 Salt spray
The motor shall be tested in accordance with Article 3.25 of GB7345 and shall comply with Article 4.23 after the test. 5.24 Weight
The weight of the motor shall be measured with a scale with a sensitivity of 1% and shall comply with Article 4.24. 6 Inspection rules
6.1 Test classification
The motor test is divided into: inspection test, acceptance test, identification test and periodic test. 6.2 Inspection test items and rules
Each motor shall be inspected and tested. The inspection test items and basic sequence shall be specified by the special technical conditions in accordance with Table 3. The motor can only be put into storage as a qualified product after all inspection items are qualified. If any item does not meet the requirements of this standard, it shall not leave the factory. 6.3 Acceptance test items and rules
The acceptance test items are the same as the inspection test items. If the user needs to accept, it shall be carried out in accordance with Article 4.3 of GB7345, and the qualified quality level (AQL) is set at 2.5.
6.4 Identification test items and rules
Identification test shall be carried out in accordance with Article 4.4 of GB7345, and its test items, basic sequence and prototype number shall be specified in accordance with Table 3 of the special technical conditions.
6.5 Periodic test items and rules
Periodic test shall be carried out in accordance with Article 4.5 of GB7345, and its test items, basic sequence and prototype number shall be specified in accordance with Table 3 of the special technical conditions.
Note: 1)
Wire marking
Appearance and assembly quality (I)
Direction of rotation
Motor forward and reverse speed difference
Insulation dielectric strength
Insulation resistance
No-load starting voltage
No-load speed and no-load current
Rated data"
Wiring coil strength
Assembly quality (II)
Terminal resistance
Torque constant and stall torque
Armature inertia and mechanical time constant
Constant amplitude vibration
Specified pulse shock
Constant damp heat
When special technical conditions require it,
it can be replaced by measuring the stall torque.
7 Quality assurance period
JB/T5867-1991
Technical requirements
Test method
Legal meaning
4. 3. 1~4. 3. 35. 3. 1~5. 3. 34.4
The quality assurance period shall be specified in the special technical conditions in accordance with Article 5.1 of GB7345. 8
Packaging, transportation and storage
Marking,
Identification test
1,2,3，4
1,2,3，4
1, 2, 3, 4
1,2,3,4
1,2,3,4
1,2,3,4
1,2,3,4
1,2, 3,4
1,2,3,4
1,2,3,4
1,2,3,4||tt ||1,2,3,4
1,2,3, 4
1,2,3,4Www.bzxZ.net
1,2,3,4
1,2,3,4
1,2,3,4
Cyclic test
1,2,3,4
1,2,3.4
1,2,3,4
1,2,3,
1,2 ,3,4
1,2,3,4||tt ||1,2,3,4
1,23,4
1,2,3,
1,2,3,4
1,2,3,4
1,2,3,4
1,2,3,4
1,2,3,4
1,2,3 ,4
1,2,3,4
1,2,3,4
The handwriting and graphics on the nameplate should be clear and correct, and it is guaranteed that they will not fall off during the entire service life. The content should be clear and visible. The nameplate should be located in a conspicuous part of the motor. The nameplate content should at least include:
Model:
Product number;
Manufacturer mark or factory name.
Motor packaging shall comply with GB5872.
JB/T5867-1991
8.4 The transportation and storage of motors shall comply with Articles 6.2 and 6.3 of GB7345. 103 Acceptance test items and rules
The acceptance test items are the same as the inspection test items. If the user needs to accept, it shall be carried out in accordance with Article 4.3 of GB7345, and the acceptable quality level (AQL) is set at 2.5.
6.4 Identification test items and rules
The identification test shall be carried out in accordance with Article 4.4 of GB7345, and its test items, basic sequence and prototype number shall be specified in Table 3 of the special technical conditions.
6.5 Periodic test items and rules
The periodic test shall be carried out in accordance with Article 4.5 of GB7345, and the test items, basic sequence and prototype number shall be specified in Table 3 of the special technical conditions.
Note: 1)
Wire marking
Appearance and assembly quality (I)
Direction of rotation
Motor forward and reverse speed difference
Insulation dielectric strength
Insulation resistance
No-load starting voltage
No-load speed and no-load current
Rated data"
Wiring coil strength
Assembly quality (II)
Terminal resistance
Torque constant and stall torque
Armature inertia and mechanical time constant
Constant amplitude vibration
Specified pulse shock
Constant damp heat
When special technical conditions require it,
it can be replaced by measuring the stall torque.
7 Quality assurance period
JB/T5867-1991
Technical requirements
Test method
Legal meaning
4. 3. 1~4. 3. 35. 3. 1~5. 3. 34.4
The quality assurance period shall be specified in the special technical conditions in accordance with Article 5.1 of GB7345. 8
Packaging, transportation and storage
Marking,
Identification test
1,2,3，4
1,2,3，4
1, 2, 3, 4
1,2,3,4
1,2,3,4
1,2,3,4
1,2,3,4
1,2, 3,4
1,2,3,4
1,2,3,4
1,2,3,4||tt ||1,2,3,4
1,2,3, 4
1,2,3,4
1,2,3,4
1,2,3,4
1,2,3,4
Cyclic test
1,2,3,4
1,2,3.4
1,2,3,4
1,2,3,
1,2 ,3,4
1,2,3,4||tt ||1,2,3,4
1,23,4
1,2,3,
1,2,3,4
1,2,3,4
1,2,3,4
1,2,3,4
1,2,3,4
1,2,3 ,4
1,2,3,4
1,2,3,4
The handwriting and graphics on the nameplate should be clear and correct, and it is guaranteed that they will not fall off during the entire service life. The content should be clear and visible. The nameplate should be located in a conspicuous part of the motor. The nameplate content should at least include:
Model:
Product number;
Manufacturer mark or factory name.
Motor packaging shall comply with GB5872.
JB/T5867-1991
8.4 The transportation and storage of motors shall comply with Articles 6.2 and 6.3 of GB7345. 103 Acceptance test items and rules
The acceptance test items are the same as the inspection test items. If the user needs to accept, it shall be carried out in accordance with Article 4.3 of GB7345, and the acceptable quality level (AQL) is set at 2.5.
6.4 Identification test items and rules
The identification test shall be carried out in accordance with Article 4.4 of GB7345, and its test items, basic sequence and prototype number shall be specified in Table 3 of the special technical conditions.
6.5 Periodic test items and rules
The periodic test shall be carried out in accordance with Article 4.5 of GB7345, and the test items, basic sequence and prototype number shall be specified in Table 3 of the special technical conditions.
Note: 1)
Wire marking
Appearance and assembly quality (I)
Direction of rotation
Motor forward and reverse speed difference
Insulation dielectric strength
Insulation resistance
No-load starting voltage
No-load speed and no-load current
Rated data"
Wiring coil strength
Assembly quality (II)
Terminal resistance
Torque constant and stall torque
Armature inertia and mechanical time constant
Constant amplitude vibration
Specified pulse shock
Constant damp heat
When special technical conditions require it,
it can be replaced by measuring the stall torque.
7 Quality assurance period
JB/T5867-1991
Technical requirements
Test method
Legal meaning
4. 3. 1~4. 3. 35. 3. 1~5. 3. 34.4
The quality assurance period shall be specified in the special technical conditions in accordance with Article 5.1 of GB7345. 8
Packaging, transportation and storage
Marking,
Identification test
1,2,3，4
1,2,3，4
1, 2, 3, 4
1,2,3,4
1,2,3,4
1,2,3,4
1,2,3,4
1,2, 3,4
1,2,3,4
1,2,3,4
1,2,3,4||tt ||1,2,3,4
1,2,3, 4
1,2,3,4
1,2,3,4
1,2,3,4
1,2,3,4
Cyclic test
1,2,3,4
1,2,3.4
1,2,3,4
1,2,3,
1,2 ,3,4
1,2,3,4||tt ||1,2,3,4
1,23,4
1,2,3,
1,2,3,4
1,2,3,4
1,2,3,4
1,2,3,4
1,2,3,4
1,2,3 ,4
1,2,3,4
1,2,3,4
The handwriting and graphics on the nameplate should be clear and correct, and it is guaranteed that they will not fall off during the entire service life. The content should be clear and visible. The nameplate should be located in a conspicuous part of the motor. The nameplate content should at least include:
Model:
Product number;
Manufacturer mark or factory name.
Motor packaging shall comply with GB5872.
JB/T5867-1991
8.4 The transportation and storage of motors shall comply with Articles 6.2 and 6.3 of GB7345. 10
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