Some standard content:
Machinery Industry Standard of the People's Republic of China
JB/T7823-1995
Three-phase linear asynchronous motor
1995-11-24 Issued
Ministry of Machinery Industry of the People's Republic of China
Implementation on 1996-07-01
Machinery Industry Standard of the People's Republic of China
Three-phase linear
Motor
Subject Content and Scope of Application
JB/T7823-1995
This standard specifies the types, basic parameters, technical requirements, test methods, inspection rules and Requirements for marking, packaging and warranty period. This standard applies to low-speed linear motors with a single-sided flat structure. 2
Referenced standards
GB1032
Packaging, storage and transportation pictorial marking
Basic technical requirements for rotating motors
Test methods for three-phase asynchronous motors
GB/T1993
GB4831
GB12665
JB/Z294
JB/Z346
Cooling methods for rotating motors
Motor product model compilation method|| tt||Requirements for damp heat test of motors used under normal environmental conditions. Test method for interturn insulation of scattered windings of AC low-voltage motors. Test limit types and basic parameters for interturn insulation of scattered windings of AC low-voltage motors.
1 Preparation of product model
Referring to GB4831, the name code of linear motors is represented by XY\, X represents linear type, and Y represents asynchronous. The model of linear motors consists of the name code, specification code and secondary structure code. 3.1.2
Note; The secondary is equivalent to the rotor of the flag motor, and there are two structures: steel secondary and composite secondary. Cu represents copper composite secondary Grade AI indicates aluminum composite secondary, and Fe indicates steel secondary.
Example: XY
Secondary buffer thickness (mm)
Secondary material
Synchronous speed (m/s)
Rated thrust (W)
Linear asynchronous motor
The cooling method of the linear motor is IC00 or IC007 (see GB/T1993), and other cooling methods are subject to the agreement between the manufacturer and the user. 3.2
The rated rating of the linear motor is the intermittent cycle duty rating, and the duty cycle is 15%, 25%, 40%, and 60%. 3.31
The rated frequency of the linear motor is 50Hz and the rated voltage is 380V. 3.41
3.5The primary winding connection method of the linear motor is Y connection. Note: The primary winding is equivalent to the stator winding of the rotating motor. Approved by the Ministry of Machinery Industry on November 24, 1995
Implementation on July 1, 1996
JB/T 7823 -1995
Linear motors are manufactured according to the following rated thrusts (when the slip ratio is 1): 3.6
10, 20, 30, 50, 100, 200, 300, 500, 750, 1000.1500, 2000, 2500, 3000, 4000, 5000, 6000.8000N3.7
Linear motors are manufactured according to the following rated synchronous speeds: 3, 4, 5, 6.9, 12m/s.
3.8 Dimensions and tolerances of linear motors
The rated air gap value of the linear motor is manufactured according to one of 2, 3, or 4mm, and the tolerance is ±0.25mm. If the user needs it, it can be manufactured according to the agreement between the manufacturer and the user.
The installation dimensions and external dimensions of the linear motor shall be produced according to the manufacturer's samples or according to the agreement between the user and the manufacturer. The parallelism tolerance of the primary core surface of the linear motor to the foot support surface shall comply with the provisions of Table 1. The flatness tolerance of the primary core surface and the foot support surface of the linear motor shall comply with the provisions of Table 1. Table 1
The maximum size in AB or BB
>250~400
>400~630
>630~1 600
Schematic diagram:
Technical requirements
Parallelism tolerance
Flatness tolerance
Linear motors shall comply with the requirements of this standard and be manufactured in accordance with the drawings and technical documents approved by the prescribed procedures. Linear motors shall be able to operate at rated speed under the following altitudes, ambient air temperature and ambient air relative humidity conditions. 4.2.1
25℃.
Altitude does not exceed 1000m.
The ambient air temperature varies with the seasons, but does not exceed 40℃. The minimum ambient air temperature at the location where the linear motor is operated is -15℃. mm
The average maximum relative humidity in the wettest month at the location where the linear motor is operated is 90%, and the average minimum temperature in that month is not higher than Note: If the linear motor is specified to be used at an altitude of more than 1000m or the ambient air temperature is higher or lower than 40C, it shall comply with the provisions of GB755. 4.3
The deviation of the power supply voltage and rated frequency from the rated value during the operation of the linear motor shall comply with the provisions of GB755. When the slip ratio is 1, the voltage and frequency are rated, the tolerance of the linear motor thrust is ±10% of the rated thrust. 4.5 When the thrust, voltage and frequency of the linear motor are rated, the slip ratio is 1, and the rated air gap is 2mm, the guaranteed value of the power factor shall comply with the provisions of Table 2, and the tolerance is -0.03. In other cases, the guaranteed value of the power factor shall be agreed upon between the manufacturer and the user. 2
Secondary structure
Power factor c08
JB/T 7823 -1995
Compound secondary
5At rated voltage, the blocking current of the linear motor shall be in accordance with the manufacturer's product sample data or the agreement between the manufacturer and the user. 4.6
4.7The linear motor adopts Class B insulation. When the altitude and ambient air overflow meet the provisions of Article 4.2, the temperature rise limit of the primary winding of the linear motor (resistance method) is 80K.
If the temperature of the test site and the ambient air temperature are different from those specified in Article 4.2, the temperature rise limit shall be revised in accordance with the provisions of GB755.
BThe insulation resistance of the primary winding of the linear motor shall not be less than 0.38Mn in the hot state or after the temperature rise test. 4.8
9The primary winding of the linear motor shall be able to withstand a 1-minute withstand voltage test without breakdown. The test voltage has a frequency of 50Hz, 4.9
sine waveform, and the effective value of the voltage is 1760V. 4.10The primary winding of the linear motor shall be able to withstand the turn-to-turn impulse withstand voltage test without breakdown. The peak value of the test impulse voltage shall be in accordance with the provisions of JB/Z346
.
4.11After the primary winding of the linear motor is tested for 6 cycles according to the 40C alternating damp heat test method specified in GB12655, the insulation resistance shall not be less than 0.38Mn.
4.12When the three-phase power supply is balanced, the deviation of any phase of the three-phase blocking current of the linear motor from the three-phase average value shall not be greater than 10% of the three-phase average value.
4.13 The surface of the linear motor sealed with epoxy resin should be flat and smooth. There should be no obvious defects such as pores, looseness, cracks, etc. that hinder its use. 4.14 The linear motor is made with three terminals. The location of the linear motor terminal box is set according to the agreement between the manufacturer and the user. The terminal box and the primary of the linear motor are allowed to be separated (the grounding wire should be reliably connected to the motor body at this time). There should be a grounding screw in the terminal box of the linear motor, and a grounding mark should be set near the grounding screw. This mark should ensure that it is not easy to erase during the entire service period of the linear motor. 5 Test method
5.1 The test power supply, electrical measuring instruments, measurement requirements and preparation before the test shall comply with the provisions of GB1032. 5.2 The test methods of technical requirements 4.2, 4.3, 4.5, 4.8, 4.9, and 4.12 shall be carried out in accordance with GB1032, 4.10 shall be carried out in accordance with JB/Z294, and 4.11 shall be carried out in accordance with GB12665. 5.3 Determination of linear motor thrust
5.3.1 Determination conditions and selection of dynamometer
The measurement condition is slip rate S=1, and the test is carried out on a horizontal test device laid on the surface simulating the actual working conditions of the linear motor. The dynamometer is a digital or pointer dynamometer with an accuracy level not lower than level 1,5. 5.3.2 Measurement method
Determine the air gap of the linear motor. Adjust the air gap of the linear motor to be uniform, measure 4 to 6 air values in the middle of both ends of the linear motor (the difference between the maximum and minimum values of the measured air gap is not more than 0.3mm), take the average value as the actual air gap value, and ensure that it is within the rated air gap tolerance. Determine the maximum friction resistance of the secondary, fix the load end of the dynamometer to one end of the secondary, and evenly and slowly b.
Push (or pull) the dynamometer forward until the secondary starts to move, and read the reading of the dynamometer. The number of measurements shall be no less than 3 times, and the average value shall be taken as F1.
c. Connect the secondary to one end of the dynamometer, fix the other end of the dynamometer, keep the dynamometer under force in the horizontal direction, and apply appropriate pre-thrust (or pulling force) to prevent impact on the dynamometer, then start the linear motor, read the dynamometer reading and voltage, current, power and other parameters as soon as possible, and measure no less than 3 times (the interval between each two times shall be no less than 10 minutes), and take the average value as F2. d. Calculation of linear motor thrust:
F=F,+F2
The average value of the maximum static friction resistance of the secondary, N; where: Fi—
JB/T7823-1995
F. —The average value of the dynamometer reading after power-on, N. 5.4 Determination of voltage characteristics
5.4.1 The voltage characteristics reflect the influence of different voltages on the thrust, current, power and other parameters of the linear motor when the linear motor is at rated air gap. 5.4.2 In the determination of voltage characteristics, the voltage V varies from 300 to 420V. Take 5 to 7 different voltage levels and measure its thrust, three-phase voltage, three-phase current and power according to the method in Article 5.3. 5.4.3 Use the data measured in Article 5.4.2 to draw the following characteristic curves of the linear motor at rated air gap: F=f(V); I=f(V), P=f(V)
5 Determination of air gap characteristics and fixed parameters
5.5.1 The air gap characteristics reflect the influence of different air gaps on the thrust, current, power and other parameters of the linear motor at rated voltage. 5.5.2 Take four air gap values between 0.7 and 2 times the rated air gap and measure the voltage characteristics of the linear motor at different air gaps. According to the voltage characteristic data under different air gaps specified in Article 5.5.2, draw the following air gap characteristic curve at rated voltage. 5.5.3
F=f(8);I=f(8);P=(6)
5.5.4 Determine the rated parameters of the linear motor from the air gap characteristic curve at rated voltage. 5.6 Determination of temperature rise of linear motor
5.6.1 The determination methods of temperature rise of linear motor are specified as running method and static method. The running method is preferred. If there are no conditions, the static method can be used. 5.6.2 Running method
Install the linear motor on the test device, adjust the air gap to the rated air gap, and perform test operation at rated voltage according to the rated working system of the linear motor to simulate the actual working conditions until the temperature rise is stable. According to the resistance method specified in GB1032, the temperature rise of the primary winding is determined. 5.6.3 Static method
Under the condition of no secondary, the primary winding of the linear motor is passed with a blocking current. Starting from the actual cold state, the test is carried out according to the rated working system of the linear motor until the temperature rise is stable. The temperature rise of the primary winding is measured according to the resistance method specified in GB1032. 6 Inspection and measurement
Each linear motor must be inspected and qualified by the quality inspection department of the manufacturer and the product certificate must be issued before it can leave the factory. 6.1
6.2Linear motor inspection is divided into factory inspection or type test. 6.3 Factory Inspection
Each linear motor shall undergo factory inspection, and the factory inspection items include: 6.3.14
Mechanical inspection (according to the provisions of Article 6.3.2 of this standard); determination of insulation resistance between primary winding and housing (cold insulation resistance can be measured during inspection test, but it should be ensured that the insulation resistance in hot state is not lower than the provisions of Article 4.8 of this standard); c.
Determination of DC resistance of primary winding under actual cooling state; withstand voltage test;
turn-to-turn insulation test;
blocking current measurement.
Mechanical inspection items of linear motor include: 6.3.2
Surface quality inspection: The surface quality shall comply with the provisions of Article 4.13. a.
The inspection of installation dimensions, external dimensions, parallelism and flatness of primary core surface and flatness of base support surface shall comply with the provisions of Article 3.8. b.
6.3.3 Factory inspection items b, c, d, e, f of Article 6.3.1 and a of Article 6.3.2 must be inspected for each unit. B of Article 6.3.2 can be inspected randomly. The inspection method shall be formulated by the manufacturer. 6.4 Type test
6.4.1 Type test shall be carried out in any of the following cases: When new products are put into production for identification;
JB/T7823 -1995
When the design or process changes of linear motors are sufficient to cause changes in certain characteristics and parameters; When the inspection test results and the previous type test results have an unacceptable deviation; Linear motors produced in batches shall be inspected once a year. The type test items of linear motors include: all items of factory inspection;
linear motor temperature rise test;
linear motor characteristics (S=1) determination;
(1) thrust, current, power-voltage characteristic curve; (2) thrust, current, power-air gap characteristic curve. d.
power factor determination;
moisture resistance test.
Marking, packaging and warranty period
The nameplate material and the method of engraving the data on the nameplate should ensure that the writing is not easily erased during the entire service life of the linear motor. The nameplate content includes:
Manufacturer name;
Linear motor name and model;
Rated thrust, synchronous speed;
Rated voltage, blocking current, rated frequency; insulation grade;
Rated air gap;
Weight:
Manufacture year and month and manufacturing number;
Standard number.
The outlet terminal of the primary winding of the linear motor and the wiring device in the terminal box should have corresponding marks and should comply with the regulations in Table 3. Table 3
Primary winding name
First phase
Second phase
Third phase
Packaging and warranty period
The words and marks on the outer wall of the packaging box should be clear and neat, and the contents are as follows: the name and address of the shipping station and the manufacturer;
The name of the receiving station and the receiving unit;
Linear motor model and factory number;
The net weight of the linear motor and the gross weight with the packaging; the size of the box;
Outlet terminal mark
The appropriate position outside the box should be marked with words such as "handle with care" and "upward" for fear of moisture, and the pattern should comply with the provisions of GB191. The packaging of the linear motor should be able to ensure that it is protected from moisture and damage under normal storage and transportation conditions. JB/T7823 -1995
7.2.3 The use and maintenance instructions and certificate of the linear motor shall be provided to the user together with each linear motor. 7.2.4 If the user uses and stores the linear motor correctly according to the provisions of the product manual, the manufacturer shall ensure that the linear motor can operate well within one year of use, but not more than two years from the date of shipment from the manufacturer. If the linear motor is damaged or cannot work normally due to poor manufacturing quality during this period, the manufacturer shall repair or replace the parts or linear motor for the user free of charge. Additional remarks:
This standard was proposed and coordinated by the Shanghai Electric Science Research Institute of the Ministry of Machinery of the People's Republic of China. This standard was drafted by Shandong Explosion-proof Motor Factory and Shanghai Electric Science Research Institute. Participating drafting units: Shanghai University of Technology, Taicang Special Motor Factory.
The main drafters of this standard are Bai Yuming, Li Juan, Fu Fengli, Zhong Chongshen, Cai Tingguo, and Chen Yamin. 6
People's Republic of China
Mechanical Industry Standard
Phase Linear Asynchronous Motor
JB/T 7823 - 1995
Published and issued by the Mechanical Science Research Institute
Printed by the Mechanical Science Research Institute
(No. 2 Shouti South Road, Beijing
Postal Code 100044)
Format 880×1230
Number of words XXX,xXX
Sheet X/X
Edition X, XX, 19XX
Printing X, XX, 19XX
Number of copies 1-XXX
Price XXX.XX Yuan
XX-XXX
Mechanical Industry Standard Service Network: http://www.JB.ac.cn61 - 8+F2
The average value of the secondary maximum static friction resistance, N; where: Fi—
JB/T7823-1995
F. —The average value of the dynamometer reading after power-on, N. 5.4 Determination of voltage characteristics
5.4.1 The voltage characteristics reflect the influence of different voltages on the thrust, current, power and other parameters of the linear motor when the linear motor is at the rated air gap. 5.4.2 In the determination of voltage characteristics, the voltage V changes in the range of 300 to 420V, and 5 to 7 different voltage levels are taken. The thrust, three-phase voltage, three-phase current and power are measured according to the method in Article 5.3. 5.4.3 Using the data measured in Article 5.4.2, draw the following characteristic curves of the linear motor at rated air gap: F=f(V);I=f(V),P=f(V)
5 Determination of air gap characteristics and fixed parameters
5.5.1 The air gap characteristics reflect the influence of different air gaps on the thrust, current, power and other parameters of the linear motor at rated voltage. 5.5.2 Take four air gap values between 0.7 and 2 times the rated air gap, and measure the voltage characteristics of the linear motor at different air gaps. According to the voltage characteristic data at different air gaps determined in Article 5.5.2, draw the following air gap characteristic curve at rated voltage. 5.5.3
F=f(8);I=f(8);P=(6)
5.5.4 Determine the rated parameters of the linear motor from the air gap characteristic curve at rated voltage. 5.6 Determination of temperature rise of linear motor
5.6.1 The determination methods of temperature rise of linear motor are specified as running method and static method. The running method is preferred. If there are no conditions, the static method can be used. 5.6.2 Running method
Install the linear motor on the test device, adjust the air gap to the rated air gap, and perform test operation under rated voltage according to the rated working system of the linear motor to simulate the actual working conditions until the temperature rise is stable. According to the resistance method specified in GB1032, the temperature rise of the primary winding is measured. 5.6.3 Static method
Under the condition of no secondary, the primary winding of the linear motor is passed with a blocking current. Starting from the actual cold state, according to the rated working system of the linear motor, the test is carried out until the temperature rise is stable. According to the resistance method specified in GB1032, the temperature rise of the primary winding is measured. 6 Inspection and measurement
Each linear motor must be inspected and qualified by the quality inspection department of the manufacturer and the product certificate must be issued before it can be shipped. 6.1
6.2 Inspection of linear motors is divided into factory inspection or type test. 6.3 Factory inspection
Each linear motor shall undergo factory inspection, and the factory inspection items include: 6.3.14
Mechanical inspection (according to the provisions of Article 6.3.2 of this standard); b.
Measurement of insulation resistance between primary winding and housing (the cold insulation resistance can be measured during the inspection test, but the insulation resistance in hot state shall not be lower than the provisions of Article 4.8 of this standard); c.
Measurement of DC resistance of primary winding under actual cooling state; withstand voltage test;
turn-to-turn insulation test;
blocking current measurement.
Mechanical inspection items of linear motors include: 6.3.2
Surface quality inspection: the surface quality shall comply with the provisions of Article 4.13. a.
The inspection of installation dimensions, overall dimensions, parallelism and flatness of the primary core surface and flatness of the foot support surface shall comply with the provisions of Article b.
3.8.
6.3.3 Factory inspection items Article 6.3.1 b, c, d, e, f and Article 6.3.2 a must be inspected for each unit, Article 6.3.2 b may be inspected on a spot basis, and the inspection method shall be formulated by the manufacturer. 6.4 Type test
6.4.1 Type test shall be conducted in any of the following situations: When new products are identified and put into production;
JB/T7823 -1995
When the design or process changes of the linear motor are sufficient to cause changes in certain characteristics and parameters; When the inspection test results and the previous type test results have an unacceptable deviation; Linear motors produced in batches shall be inspected once a year. The type test items of linear motors include: all items of factory inspection;
linear motor temperature rise test;
linear motor characteristics (S=1) determination;
(1) thrust, current, power-voltage characteristic curve; (2) thrust, current, power-air gap characteristic curve. d.
power factor determination;
moisture resistance test.
Marking, packaging and warranty period
The nameplate material and the method of engraving the data on the nameplate should ensure that the writing is not easily erased during the entire service life of the linear motor. The nameplate content includes:
Manufacturer name;
Linear motor name and model;
Rated thrust, synchronous speed;
Rated voltage, blocking current, rated frequency; insulation grade;
Rated air gap;
Weight:
Manufacture year and month and manufacturing number;
Standard number.
The outlet terminal of the primary winding of the linear motor and the wiring device in the terminal box should have corresponding marks and should comply with the regulations in Table 3. Table 3
Primary winding name
First phase
Second phase
Third phase
Packaging and warranty period
The words and marks on the outer wall of the packaging box should be clear and neat, and the contents are as follows: the name and address of the shipping station and the manufacturer;
The name of the receiving station and the receiving unit;
Linear motor model and factory number;
The net weight of the linear motor and the gross weight with the packaging; the size of the box;
Outlet terminal mark
The appropriate position outside the box should be marked with words such as "handle with care" and "upward for fear of moisture", and the pattern should comply with the provisions of GB191. The packaging of the linear motor should be able to ensure that it is protected from moisture and damage under normal storage and transportation conditions. JB/T7823 -1995
7.2.3 The use and maintenance instructions and certificate of the linear motor shall be provided to the user together with each linear motor. 7.2.4 If the user uses and stores the linear motor correctly according to the provisions of the product manual, the manufacturer shall ensure that the linear motor can operate well within one year of use, but not more than two years from the date of shipment from the manufacturer. If the linear motor is damaged or cannot work normally due to poor manufacturing quality during this period, the manufacturer shall repair or replace the parts or linear motor for the user free of charge. Additional remarks:
This standard was proposed and coordinated by the Shanghai Electric Science Research Institute of the Ministry of Machinery of the People's Republic of China. This standard was drafted by Shandong Explosion-proof Motor Factory and Shanghai Electric Science Research Institute. Participating drafting units: Shanghai University of Technology, Taicang Special Motor Factory.
The main drafters of this standard are Bai Yuming, Li Juan, Fu Fengli, Zhong Chongshen, Cai Tingguo, and Chen Yamin. 6
People's Republic of China
Mechanical Industry Standard
Phase Linear Asynchronous Motor
JB/T 7823 - 1995
Published and issued by the China Academy of Mechanical Science
Printed by the China Academy of Mechanical Science
(No. 2 Shouti South Road, Beijing
Postal Code 100044)
Format 880×1230
Number of words XXX,xXX
Sheet X/X
Edition X, XX, 19XX
Printing X, XX, 19XX
Number of copies 1-XXX
Price XXX.XX Yuan
XX-XXX
Mechanical Industry Standard Service Network: http://www.JB.ac.cn61 - 8+F2
The average value of the secondary maximum static friction resistance, N; where: Fi—
JB/T7823-1995
F. —The average value of the dynamometer reading after power-on, N. 5.4 Determination of voltage characteristics
5.4.1 The voltage characteristics reflect the influence of different voltages on the thrust, current, power and other parameters of the linear motor when the linear motor is at the rated air gap. 5.4.2 In the determination of voltage characteristics, the voltage V changes in the range of 300 to 420V, and 5 to 7 different voltage levels are taken. The thrust, three-phase voltage, three-phase current and power are measured according to the method in Article 5.3. 5.4.3 Using the data measured in Article 5.4.2, draw the following characteristic curves of the linear motor at rated air gap: F=f(V);I=f(V),P=f(V)
5 Determination of air gap characteristics and fixed parameters
5.5.1 The air gap characteristics reflect the influence of different air gaps on the thrust, current, power and other parameters of the linear motor at rated voltage. 5.5.2 Take four air gap values between 0.7 and 2 times the rated air gap, and measure the voltage characteristics of the linear motor at different air gaps. According to the voltage characteristic data at different air gaps determined in Article 5.5.2, draw the following air gap characteristic curve at rated voltage. 5.5.3
F=f(8);I=f(8);P=(6)
5.5.4 Determine the rated parameters of the linear motor from the air gap characteristic curve at rated voltage. 5.6 Determination of temperature rise of linear motor
5.6.1 The determination methods of temperature rise of linear motor are specified as running method and static method. The running method is preferred. If there are no conditions, the static method can be used. 5.6.2 Running method
Install the linear motor on the test device, adjust the air gap to the rated air gap, and perform test operation under rated voltage according to the rated working system of the linear motor to simulate the actual working conditions until the temperature rise is stable. According to the resistance method specified in GB1032, the temperature rise of the primary winding is measured. 5.6.3 Static method
Under the condition of no secondary, the primary winding of the linear motor is passed with a blocking current. Starting from the actual cold state, according to the rated working system of the linear motor, the test is carried out until the temperature rise is stable. According to the resistance method specified in GB1032, the temperature rise of the primary winding is measured. 6 Inspection and measurement
Each linear motor must be inspected and qualified by the quality inspection department of the manufacturer and the product certificate must be issued before it can be shipped. 6.1
6.2 Inspection of linear motors is divided into factory inspection or type test. 6.3 Factory inspection
Each linear motor shall undergo factory inspection, and the factory inspection items include: 6.3.14
Mechanical inspection (according to the provisions of Article 6.3.2 of this standard); b.
Measurement of insulation resistance between primary winding and housing (the cold insulation resistance can be measured during the inspection test, but the insulation resistance in hot state shall not be lower than the provisions of Article 4.8 of this standard); c.
Measurement of DC resistance of primary winding under actual cooling state; withstand voltage test;
turn-to-turn insulation test;
blocking current measurement.
Mechanical inspection items of linear motors include: 6.3.2
Surface quality inspection: the surface quality shall comply with the provisions of Article 4.13. a.
The inspection of installation dimensions, overall dimensions, parallelism and flatness of the primary core surface and flatness of the foot support surface shall comply with the provisions of Article b.
3.8.
6.3.3 Factory inspection items Article 6.3.1 b, c, d, e, f and Article 6.3.2 a must be inspected for each unit, Article 6.3.2 b may be inspected on a spot basis, and the inspection method shall be formulated by the manufacturer. 6.4 Type test
6.4.1 Type test shall be conducted in any of the following situations: When new products are identified and put into production;
JB/T7823 -1995
When the design or process changes of the linear motor are sufficient to cause changes in certain characteristics and parameters; When the inspection test results and the previous type test results have an unacceptable deviation; Linear motors produced in batches shall be inspected once a year. The type test items of linear motors include: all items of factory inspection;
linear motor temperature rise test;
linear motor characteristics (S=1) determination;
(1) thrust, current, power-voltage characteristic curve; (2) thrust, current, power-air gap characteristic curve. d.
power factor determination;
moisture resistance test.
Marking, packaging and warranty period
The nameplate material and the method of engraving the data on the nameplate should ensure that the writing is not easily erased during the entire service life of the linear motor. The nameplate content includes:
Manufacturer name;
Linear motor name and model;
Rated thrust, synchronous speed;
Rated voltage, blocking current, rated frequency; insulation grade;
Rated air gap;
Weight:
Manufacture year and month and manufacturing number;
Standard number.
The outlet terminal of the primary winding of the linear motor and the wiring device in the terminal box should have corresponding marks and should comply with the regulations in Table 3. Table 3
Primary winding name
First phase
Second phase
Third phase
Packaging and warranty period
The words and marks on the outer wall of the packaging box should be clear and neat, and the contents are as follows: the name and address of the shipping station and the manufacturer;
The name of the receiving station and the receiving unit;
Linear motor model and factory number;
The net weight of the linear motor and the gross weight with the packaging; the size of the box;
Outlet terminal mark
The appropriate position outside the box should be marked with words such as "handle with care" and "upward for fear of moisture", and the pattern should comply with the provisions of GB191. The packaging of the linear motor should be able to ensure that it is protected from moisture and damage under normal storage and transportation conditions. JB/T7823 -1995
7.2.3 The use and maintenance instructions and certificate of the linear motor shall be provided to the user together with each linear motor. 7.2.4 If the user uses and stores the linear motor correctly according to the provisions of the product manual, the manufacturer shall ensure that the linear motor can operate well within one year of use, but not more than two years from the date of shipment from the manufacturer. If the linear motor is damaged or cannot work normally due to poor manufacturing quality during this period, the manufacturer shall repair or replace the parts or linear motor for the user free of charge. Additional remarks:
This standard was proposed and coordinated by the Shanghai Electric Science Research Institute of the Ministry of Machinery of the People's Republic of China. This standard was drafted by Shandong Explosion-proof Motor Factory and Shanghai Electric Science Research Institute. Participating drafting units: Shanghai University of Technology, Taicang Special Motor Factory.
The main drafters of this standard are Bai Yuming, Li Juan, Fu Fengli, Zhong Chongshen, Cai Tingguo, and Chen Yamin. 6
People's Republic of China
Mechanical Industry Standard
Phase Linear Asynchronous Motor
JB/T 7823 - 1995
Published and issued by the China Academy of Mechanical Science
Printed by the China Academy of Mechanical Science
(No. 2 Shouti South Road, Beijing
Postal Code 100044)
Format 880×1230
Number of words XXX,xXX
Sheet X/X
Edition X, XX, 19XX
Printing X, XX, 19XX
Number of copies 1-XXX
Price XXX.XX Yuan
XX-XXX
Mechanical Industry Standard Service Network: http://www.JB.ac.cn61 - 84 The rated parameters of the linear motor are determined by the air gap characteristic curve at rated voltage. 5.6 Determination of temperature rise of linear motor
5.6.1 The determination methods of temperature rise of linear motor are specified as running method and static method. The running method is preferred. If there are no conditions, the static method can be used. 5.6.2 Running method
Install the linear motor on the test device, adjust the air gap to the rated air gap, and perform test operation at rated voltage according to the rated working system of the linear motor to simulate the actual working conditions until the temperature rise is stable. According to the resistance method specified in GB1032, the temperature rise of the primary winding is measured. 5.6.3 Static method
In the absence of secondary, the primary winding of the linear motor is passed with a blocking current. Starting from the actual cold state, the test is performed according to the rated working system of the linear motor until the temperature rise is stable. According to the resistance method specified in GB1032, the temperature rise of the primary winding is measured. 6 Inspection and testing
Each linear motor must be inspected and qualified by the quality inspection department of the manufacturer and the product certificate must be issued before it can leave the factory. 6.1
6.2 Inspection of linear motors is divided into factory inspection or type test. 6.3 Factory inspection
Each linear motor should undergo factory inspection. The factory inspection items include: 6.3.14
Mechanical inspection (according to the provisions of Article 6.3.2 of this standard); b.
Measurement of the insulation resistance between the primary winding and the casing (the cold insulation resistance can be measured during the inspection test, but the insulation resistance in the hot state should be ensured not to be lower than the provisions of Article 4.8 of this standard); c.
Measurement of the DC resistance of the primary winding under the actual cooling state; withstand voltage test;
turn-to-turn insulation test;
blocking current measurement.
The mechanical inspection items of linear motors include: 6.3.2
Surface quality inspection: The surface quality shall comply with the provisions of Article 4.13. a.
The inspection of installation dimensions, external dimensions, parallelism and flatness of the primary core surface and flatness of the foot support surface shall comply with the provisions of Article b.
3.8.
6.3.3 Factory inspection items Article 6.3.1 b, c, d, e, f and Article 6.3.2 a must be inspected for each unit, Article 6.3.2 b can be inspected randomly, and the inspection method shall be formulated by the manufacturer. 6.4 Type test
6.4.1 Type test shall be conducted in any of the following cases: When new products are put into production for identification;
JB/T7823 -1995
When the design or process changes of linear motors are sufficient to cause changes in certain characteristics and parameters; When the inspection test results and the previous type test results have an unacceptable deviation; Linear motors produced in batches shall be tested once a year. The type test items of linear motors include: All items of factory inspection;
Linear motor temperature rise test;
Determination of linear motor characteristics (S=1);
(1) Thrust, current, power-voltage characteristic curves; (2) Thrust, current, power-air gap characteristic curves. d.
Determination of power factor;
Moisture resistance test.
Marking, packaging and warranty period
The nameplate material and the method of engraving the data on the nameplate should ensure that the writing is not easily erased during the entire service life of the linear motor. The nameplate content includes:
Manufacturer name;
Linear motor name and model;
Rated thrust, synchronous speed;
Rated voltage, blocking current, rated frequency; insulation grade;
Rated air gap; wwW.bzxz.Net
Weight:
Manufacture year and month and manufacturing number;
Standard number.
The outlet terminal of the primary winding of the linear motor and the wiring device in the terminal box should have corresponding marks and should comply with the regulations in Table 3. Table 3
Primary winding name
First phase
Second phase
Third phase
Packaging and warranty period
The words and marks on the outer wall of the packaging box should be clear and neat, and the contents are as follows: the name and address of the shipping station and the manufacturer;
The name of the receiving station and the receiving unit;
Linear motor model and factory number;
The net weight of the linear motor and the gross weight with the packaging; the size of the box;
Outlet terminal mark
The appropriate position outside the box should be marked with words such as "handle with care" and "upward for fear of moisture", and the pattern should comply with the provisions of GB191. The packaging of the linear motor should be able to ensure that it is protected from moisture and damage under normal storage and transportation conditions. JB/T7823 -1995
7.2.3 The use and maintenance instructions and certificate of the linear motor shall be provided to the user together with each linear motor. 7.2.4 If the user uses and stores the linear motor correctly according to the provisions of the product manual, the manufacturer shall ensure that the linear motor can operate well within one year of use, but not more than two years from the date of shipment from the manufacturer. If the linear motor is damaged or cannot work normally due to poor manufacturing quality during this period, the manufacturer shall repair or replace the parts or linear motor for the user free of charge. Additional remarks:
This standard was proposed and coordinated by the Shanghai Electric Science Research Institute of the Ministry of Machinery of the People's Republic of China. This standard was drafted by Shandong Explosion-proof Motor Factory and Shanghai Electric Science Research Institute. Participating drafting units: Shanghai University of Technology, Taicang Special Motor Factory.
The main drafters of this standard are Bai Yuming, Li Juan, Fu Fengli, Zhong Chongshen, Cai Tingguo, and Chen Yamin. 6
People's Republic of China
Mechanical Industry Standard
Phase Linear Asynchronous Motor
JB/T 7823 - 1995
Published and issued by the China Academy of Mechanical Science
Printed by the China Academy of Mechanical Science
(No. 2 Shouti South Road, Beijing
Postal Code 100044)
Format 880×1230
Number of words XXX,xXX
Sheet X/X
Edition X, XX, 19XX
Printing X, XX, 19XX
Number of copies 1-XXX
Price XXX.XX Yuan
XX-XXX
Mechanical Industry Standard Service Network: http://www.JB.ac.cn61 - 84 The rated parameters of the linear motor are determined by the air gap characteristic curve at rated voltage. 5.6 Determination of temperature rise of linear motor
5.6.1 The determination methods of temperature rise of linear motor are specified as running method and static method. The running method is preferred. If there are no conditions, the static method can be used. 5.6.2 Running method
Install the linear motor on the test device, adjust the air gap to the rated air gap, and perform test operation at rated voltage according to the rated working system of the linear motor to simulate the actual working conditions until the temperature rise is stable. According to the resistance method specified in GB1032, the temperature rise of the primary winding is measured. 5.6.3 Static method
In the absence of secondary, the primary winding of the linear motor is passed with a blocking current. Starting from the actual cold state, the test is performed according to the rated working system of the linear motor until the temperature rise is stable. According to the resistance method specified in GB1032, the temperature rise of the primary winding is measured. 6 Inspection and testing
Each linear motor must be inspected and qualified by the quality inspection department of the manufacturer and the product certificate must be issued before it can leave the factory. 6.1
6.2 Inspection of linear motors is divided into factory inspection or type test. 6.3 Factory inspection
Each linear motor should undergo factory inspection. The factory inspection items include: 6.3.14
Mechanical inspection (according to the provisions of Article 6.3.2 of this standard); b.
Measurement of the insulation resistance between the primary winding and the casing (the cold insulation resistance can be measured during the inspection test, but the insulation resistance in the hot state should be ensured not to be lower than the provisions of Article 4.8 of this standard); c.
Measurement of the DC resistance of the primary winding under the actual cooling state; withstand voltage test;
turn-to-turn insulation test;
blocking current measurement.
The mechanical inspection items of linear motors include: 6.3.2
Surface quality inspection: The surface quality shall comply with the provisions of Article 4.13. a.
The inspection of installation dimensions, external dimensions, parallelism and flatness of the primary core surface and flatness of the foot support surface shall comply with the provisions of Article b.
3.8.
6.3.3 Factory inspection items Article 6.3.1 b, c, d, e, f and Article 6.3.2 a must be inspected for each unit, Article 6.3.2 b can be inspected randomly, and the inspection method shall be formulated by the manufacturer. 6.4 Type test
6.4.1 Type test shall be conducted in any of the following cases: When new products are put into production for identification;
JB/T7823 -1995
When the design or process changes of linear motors are sufficient to cause changes in certain characteristics and parameters; When the inspection test results and the previous type test results have an unacceptable deviation; Linear motors produced in batches shall be tested once a year. The type test items of linear motors include: All items of factory inspection;
Linear motor temperature rise test;
Linear motor characteristics (S=1) determination;
(1) Thrust, current, power-voltage characteristic curve; (2) Thrust, current, power-air gap characteristic curve. d.
Determination of power factor;
Moisture resistance test.
Marking, packaging and warranty period
The nameplate material and the method of engraving the data on the nameplate should ensure that the writing is not easily erased during the entire service life of the linear motor. The nameplate content includes:
Manufacturer name;
Linear motor name and model;
Rated thrust, synchronous speed;
Rated voltage, blocking current, rated frequency; insulation grade;
Rated air gap;
Weight:
Manufacture year and month and manufacturing number;
Standard number.
The outlet terminal of the primary winding of the linear motor and the wiring device in the terminal box should have corresponding marks and should comply with the regulations in Table 3. Table 3
Primary winding name
First phase
Second phase
Third phase
Packaging and warranty period
The words and marks on the outer wall of the packaging box should be clear and neat, and the contents are as follows: the name and address of the shipping station and the manufacturer;
The name of the receiving station and the receiving unit;
Linear motor model and factory number;
The net weight of the linear motor and the gross weight with the packaging; the size of the box;
Outlet terminal mark
The appropriate position outside the box should be marked with words such as "handle with care" and "upward for fear of moisture", and the pattern should comply with the provisions of GB191. The packaging of the linear motor should be able to ensure that it is protected from moisture and damage under normal storage and transportation conditions. JB/T7823 -1995
7.2.3 The use and maintenance instructions and certificate of the linear motor shall be provided to the user together with each linear motor. 7.2.4 If the user uses and stores the linear motor correctly according to the provisions of the product manual, the manufacturer shall ensure that the linear motor can operate well within one year of use, but not more than two years from the date of shipment from the manufacturer. If the linear motor is damaged or cannot work normally due to poor manufacturing quality during this period, the manufacturer shall repair or replace the parts or linear motor for the user free of charge. Additional remarks:
This standard was proposed and coordinated by the Shanghai Electric Science Research Institute of the Ministry of Machinery of the People's Republic of China. This standard was drafted by Shandong Explosion-proof Motor Factory and Shanghai Electric Science Research Institute. Participating drafting units: Shanghai University of Technology, Taicang Special Motor Factory.
The main drafters of this standard are Bai Yuming, Li Juan, Fu Fengli, Zhong Chongshen, Cai Tingguo, and Chen Yamin. 6
People's Republic of China
Mechanical Industry Standard
Phase Linear Asynchronous Motor
JB/T 7823 - 1995
Published and issued by the China Academy of Mechanical Science
Printed by the China Academy of Mechanical Science
(No. 2 Shouti South Road, Beijing
Postal Code 100044)
Format 880×1230
Number of words XXX,xXX
Sheet X/X
Edition X, XX, 19XX
Printing X, XX, 19XX
Number of copies 1-XXX
Price XXX.XX Yuan
XX-XXX
Mechanical Industry Standard Service Network: http://www.JB.ac.cn61 - 81 Type tests shall be conducted in any of the following situations: when new products are identified and put into production; when changes in the design or process of the linear motor are sufficient to cause changes in certain characteristics and parameters; when there is an unacceptable deviation between the inspection test results and the previous type test results; and when linear motors produced in batches are sampled and tested once a year. Type test items for linear motors include: all items of factory inspection; temperature rise test of linear motors; determination of linear motor characteristics (S=1); (1) thrust, current, power-voltage characteristic curves; (2) thrust, current, power-air gap characteristic curves. d. Determination of power factor; moisture resistance test.
Marking, packaging and warranty period
The nameplate material and the method of engraving the data on the nameplate should ensure that the writing is not easily erased during the entire service life of the linear motor. The nameplate content includes:
Manufacturer name;
Linear motor name and model;
Rated thrust, synchronous speed;
Rated voltage, blocking current, rated frequency; insulation grade;
Rated air gap;
Weight:
Manufacture year and month and manufacturing number;
Standard number.
The outlet terminal of the primary winding of the linear motor and the wiring device in the terminal box should have corresponding marks and should comply with the regulations in Table 3. Table 3
Primary winding name
First phase
Second phase
Third phase
Packaging and warranty period
The words and marks on the outer wall of the packaging box should be clear and neat, and the contents are as follows: the name and address of the shipping station and the manufacturer;
The name of the receiving station and the receiving unit;
Linear motor model and factory number;
The net weight of the linear motor and the gross weight with the packaging; the size of the box;
Outlet terminal mark
The appropriate position outside the box should be marked with words such as "handle with care" and "upward for fear of moisture", and the pattern should comply with the provisions of GB191. The packaging of the linear motor should be able to ensure that it is protected from moisture and damage under normal storage and transportation conditions. JB/T7823 -1995
7.2.3 The use and maintenance instructions and certificate of the linear motor shall be provided to the user together with each linear motor. 7.2.4 If the user uses and stores the linear motor correctly according to the provisions of the product manual, the manufacturer shall ensure that the linear motor can operate well within one year of use, but not more than two years from the date of shipment from the manufacturer. If the linear motor is damaged or cannot work normally due to poor manufacturing quality during this period, the manufacturer shall repair or replace the parts or linear motor for the user free of charge. Additional remarks:
This standard was proposed and coordinated by the Shanghai Electric Science Research Institute of the Ministry of Machinery of the People's Republic of China. This standard was drafted by Shandong Explosion-proof Motor Factory and Shanghai Electric Science Research Institute. Participating drafting units: Shanghai University of Technology, Taicang Special Motor Factory.
The main drafters of this standard are Bai Yuming, Li Juan, Fu Fengli, Zhong Chongshen, Cai Tingguo, and Chen Yamin. 6
People's Republic of China
Mechanical Industry Standard
Phase Linear Asynchronous Motor
JB/T 7823 - 1995
Published and issued by the China Academy of Mechanical Science
Printed by the China Academy of Mechanical Science
(No. 2 Shouti South Road, Beijing
Postal Code 100044)
Format 880×1230
Number of words XXX,xXX
Sheet X/X
Edition X, XX, 19XX
Printing X, XX, 19XX
Number of copies 1-XXX
Price XXX.XX Yuan
XX-XXX
Mechanical Industry Standard Service Network: http://www.JB.ac.cn61 - 81 Type tests shall be conducted in any of the following situations: when new products are identified and put into production; when changes in the design or process of the linear motor are sufficient to cause changes in certain characteristics and parameters; when there is an unacceptable deviation between the inspection test results and the previous type test results; and when linear motors produced in batches are sampled and tested once a year. Type test items for linear motors include: all items of factory inspection; temperature rise test of linear motors; determination of linear motor characteristics (S=1); (1) thrust, current, power-voltage characteristic curves; (2) thrust, current, power-air gap characteristic curves. d. Determination of power factor; moisture resistance test.
Marking, packaging and warranty period
The nameplate material and the method of engraving the data on the nameplate should ensure that the writing is not easily erased during the entire service life of the linear motor. The nameplate content includes:
Manufacturer name;
Linear motor name and model;
Rated thrust, synchronous speed;
Rated voltage, blocking current, rated frequency; insulation grade;
Rated air gap;
Weight:
Manufacture year and month and manufacturing number;
Standard number.
The outlet terminal of the primary winding of the linear motor and the wiring device in the terminal box should have corresponding marks and should comply with the regulations in Table 3. Table 3
Primary winding name
First phase
Second phase
Third phase
Packaging and warranty period
The words and marks on the outer wall of the packaging box should be clear and neat, and the contents are as follows: the name and address of the shipping station and the manufacturer;
The name of the receiving station and the receiving unit;
Linear motor model and factory number;
The net weight of the linear motor and the gross weight with the packaging; the size of the box;
Outlet terminal mark
The appropriate position outside the box should be marked with words such as "handle with care" and "upward" for fear of moisture, and the pattern should comply with the provisions of GB191. The packaging of the linear motor should be able to ensure that it is protected from moisture and damage under normal storage and transportation conditions. JB/T7823 -1995
7.2.3 The use and maintenance instructions and certificate of the linear motor shall be provided to the user together with each linear motor. 7.2.4 If the user uses and stores the linear motor correctly according to the provisions of the product manual, the manufacturer shall ensure that the linear motor can operate well within one year of use, but not more than two years from the date of shipment from the manufacturer. If the linear motor is damaged or cannot work normally due to poor manufacturing quality during this period, the manufacturer shall repair or replace the parts or linear motor for the user free of charge. Additional remarks:
This standard was proposed and coordinated by the Shanghai Electric Science Research Institute of the Ministry of Machinery of the People's Republic of China. This standard was drafted by Shandong Explosion-proof Motor Factory and Shanghai Electric Science Research Institute. Participating drafting units: Shanghai University of Technology, Taicang Special Motor Factory.
The main drafters of this standard are Bai Yuming, Li Juan, Fu Fengli, Zhong Chongshen, Cai Tingguo, and Chen Yamin. 6
People's Republic of China
Mechanical Industry Standard
Phase Linear Asynchronous Motor
JB/T 7823 - 1995
Published and issued by the Mechanical Science Research Institute
Printed by the Mechanical Science Research Institute
(No. 2 Shouti South Road, Beijing
Postal Code 100044)
Format 880×1230
Number of words XXX,xXX
Sheet X/X
Edition X, XX, 19XX
Printing X, XX, 19XX
Number of copies 1-XXX
Price XXX.XX Yuan
XX-XXX
Mechanical Industry Standard Service Network: http://www.JB.ac.cn61 - 8
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