JB/T 8682-1998 Technical requirements for YM series three-phase asynchronous motors for woodworking
Some standard content:
Machinery Industry Standard of the People's Republic of China
JB/T8682
1998-03-11
JB/T8682
This standard is formulated based on the development of GB/T1.1 and YM series technical motor technology level. By making this standard consistent with international standards in terms of format, quota, performance and safety requirements as much as possible, it can meet the needs of international trade, technology and economic exchanges.
This standard is proposed and managed by the National Technical Committee for Standardization of Rotating Electric Motors. The responsible drafting units of this standard are: Jingdezhen Motor Factory, and the Upper Electric Science Research Institute of the Ministry of Machinery Industry. The participating drafting units of this standard are: Mudanjiang Motor Factory. The main drafters of this standard are: Ning Xiaodong, Xie Zimin, Yu Aiyun, Weilang, Feng Li, and Huang Jian. I
鸡噬魁鹿瓦彤艺麗
瘾絶]
JB/T86821998
This standard specifies the type, basic parameters and dimensions, technical requirements, inspection rules, marking, packaging and warranty requirements of YM series three-phase asynchronous motors for woodworking.
This standard is applicable to YM series three-phase asynchronous motors for woodworking (frame size 71~100) (hereinafter referred to as motors). 2 Reference standards
The texts contained in the following standards become the texts of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards may be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB 191---90
GB/T 755 87
GB/T 997-87
GB/T 1032 85
GB/T 1993---93
GB/T 4772.1-- 84
GB/T 4942.1 --85
GB/T 10068 --88
GB/T [006988
GB/T 12865--90Www.bzxZ.net
JB/Z. 29487
JB/2 34589
National marking for packaging, storage and transportation
Basic technical requirements for rotating electrical machines (neq1EC 34--i---1994) Motor structure and installation type code (neqTEC34? 1992) Three-phase asynchronous motor test method || tt || Rotating motor cooling method (ne4 IFC 34-6-1991) Motor dimensions and tolerances (motor with frame number 36400, flange number FF55FF1080 or FT55--FTi080) (neg IEC 72-1-1991) Classification of motor housing protection (NETEC 34-5-1991) Determination method and limit of vibration of rotating motor (NEFC 34-12-1986) Determination method and limit of vibration of rotating motor (E34-9-1990) Requirements for sensible heat test of medium-voltage motor under normal environmental conditions Test method for insulation between turns of AC low-voltage motor inter-windings Test limit of insulation between turns of AC low-voltage motor inter-windings 3 Type, basic parameters and dimensions
3.1 The housing protection grade of the motor is IF44 (see GB/T 4942.1). 3.2 The insulation grade of the motor is IC411 (see GB/T 1993). 3. The motor structure and installation type are 1M1001, IM1051, IM1C61, LM1071, IM1011, M1031 and 1M9301 (see GIB997), and are manufactured according to the provisions of Table 1.
Frame size
71~-100
3.4 The motor rating is a continuous rating based on the continuous operation system (S1). Structure and installation code
10G1, 1051.1061.1G7, 101, 10$19301
3.5 The rated frequency of the motor is 50Hz and the rated voltage is 380V. The power of 3kW and below is Y-connected: the other powers are A-connected:
1998-03-11
1998-07-01
3.6 The motor should be manufactured according to the following rated power: JB/T86821998
0.55,0.75, 1.1,1.5,2.2,3,4,5.5,7.5 kw. The correspondence between the motor frame number and the speed and power should be in accordance with the provisions of Table 2. 3.7
Note, S. 1. The numbers 1 and 2 after represent different powers under the same frame number and speed. 3.8 Motor size and tolerance
Step speed
3.8.1 The installation size and tolerance of the motor shall comply with the provisions of Table 3 (see Figure 1) to Table (see Figure 2), and the overall size shall not exceed the provisions of Table 3 to Table 1
JB/T8682
oryseg
TTOGWX
JB/T8682
Table 4 Motor mounting without foot and with support
25+g *a1 1 182 ± 1. 5
308021
The size and tolerance of the motor shaft key shall comply with the provisions of Table 5. Table 5
Parts are really light
3.8.3 The radial runout tolerance at half the shaft length shall comply with the provisions of Table 6. (Except 1M9301) Table 6
Clock diameter
i0~-3G
2- 30-- 50
Elongation
2100~200
2100--200
National runout standards
3.8.4 For 1M9301, the diameter runout tolerance of the circumference of the shaft extension hole during shaft rotation should not be greater than 0.03mm, the straightness of the motor center line and the center line of the two supports should not exceed 0.015mm, the vertical position of the center line of the two supports in the motor should not exceed C.25mm (based on the axis of the shaft extension), the axial deviation of the two supports should not exceed 0.025n, and the end face of the shaft should not exceed 0.03 misu
3.5 The parallelism tolerance of the motor line to the foot support surface shall comply with the provisions of Table 7. 5
Motor shaft length
300400
>400-500
>500--600
600-700
JB/T8682
The flatness tolerance of the motor foot support surface shall comply with the provisions of Table 8. 3.8.6
90~10m
3.8.7 The axial movement of the motor shaft extension shall not exceed 0.025mm. 3.8.8 The symmetry tolerance of the key on the motor shaft shall comply with the provisions of Table 2. 9
Nangtangjue
Technical requirements
Linearity tolerance
Flatness tolerance
Symmetry tolerance
The motor shall meet the requirements of this standard and be manufactured in accordance with the drawings and technical documents approved by the prescribed procedures. 4.1
4.2 The motor shall be able to operate at rated speed under the following conditions of altitude, ambient air temperature and ambient air relative humidity. 4.2.1 The altitude shall not exceed 1000m.
4.2.2 The maximum temperature of ambient air varies with the rate, and shall not exceed 40℃: mm
Note: If the motor is specified to be used at an altitude of more than 1000m or the ambient air temperature is higher or lower than 40℃, it shall be in accordance with the provisions of (BT755). 4.2.3 The minimum temperature of ambient air is -15℃. 4.2.4 The average maximum relative humidity in the wettest month is 90%, and the average minimum temperature in that month is not higher than 25℃. 4.3 The deviation of the power supply voltage and frequency from the rated value during the operation of the motor shall comply with the provisions of GB/T755. 4.4 When the power, voltage and frequency of the motor are rated, the guaranteed values of its efficiency and power factor shall comply with the provisions of Table 10.
JB/T8 6821998
Synchronous speed/min
Single bearing
Note: Efficiency is determined by the measured loss analysis method. Double bearing
4.5 Under rated power, the guaranteed value of the ratio of the motor running short to the rated short should be 2.5 times for 4kW and below, and 2.3 times for 5.5kW and above
4.6 Under rated voltage, the guaranteed value of the ratio of the minimum torque to the starting torque during the motor starting process should be 0.5 times. .7 Under rated voltage, the guaranteed value of the ratio of the maximum torque to the rated torque of the motor should be 3 times. .8 Under rated voltage, the guaranteed value of the ratio of the motor stall current to the rated current should be 7.5 times for 2.2kW and below, 2.For motors above 2kW, the value should be 8 times.
4. The guaranteed value of the motor electrical performance should comply with the requirements of Table 11. Table 11
Electrical performance name
Power circle number ccs
Locked rotor torque
Minimum torque
Maximum torque
Locked rotor current
-- 0. 15(1 -- )
—(1—cos)/6. At least -0.02
guaranteed value -15%-25% (positive tolerance is only specified when the user requires it) -15% of guaranteed value
guaranteed pin -10%
guaranteed value +20%
The motor adopts Class B insulation. When the temperature of the running and ambient air meets the requirements of Article 4.2, the temperature rise limit of the motor stator winding (resistance method) should not exceed 80K, and the allowable temperature of the bearing (thermometer method) should not exceed 95. If the running and ambient air temperature of the test point is not consistent with the requirements of Article 4.2, the temperature limit should be corrected according to the provisions of GB/T755. Car,! 1. The motor should be able to withstand the maximum speed specified in this standard (including tolerance) for 155 minutes without sudden speed change, stoppage and harmful deformation under the condition of hot state and gradually increasing torque: at this time, the voltage and frequency should be maintained at the rated value. 4.12 The motor should be able to withstand the speed increase to 120% of the rated value for 2 minutes without harmful deformation under no-load condition. 4.13 The insulation resistance of the motor stator winding in hot state or after temperature rise test shall not be less than 0.5M0. 4.14 The stator winding of the motor shall be able to withstand a withstand voltage test of 1 minute without breakdown. The test voltage has a frequency of 50Hz and is as sinusoidal as possible. The effective value of the output voltage is 1760.6
JB/T86821998
For inspection tests on motors with a rated power of 4kW or less that are produced in large quantities on conveyor belts, the test time is allowed to be shortened to 1 s, and the effective value of the test voltage is 2110 V. 4.15 The stator winding of the motor shall be able to withstand the original Φ impulse withstand voltage test without breakdown. The peak value of the test impulse voltage shall be carried out in accordance with the provisions of JB/Z346.
4.16 After the stator winding of the motor is tested for 6 cycles in accordance with the 40℃ alternating damp heat test method specified in GB/T12665, the insulation resistance shall not be less than 0.5M0, and it shall be able to withstand the withstand voltage test specified in Article 4.14 without breakdown, but the effective value of the voltage is 1500V4.17 The effective value of the vibration velocity measured by the motor at no load shall not exceed 1.8 tmtn/g. 4.18 The sound value of the A-weighted sound power level measured by the motor at no load shall comply with the value specified in the grade selected in Table 12 when ordering, and the difference in noise value is +3dB(A). Table 12
Synchronous speed
Power level
4.19 When the three-phase power supply is normal: the deviation of any phase of the three-phase no-load current of the motor from the three-phase average should not exceed 10% of the three-phase average value.
4.20 During the inspection test of the motor, the no-load and locked-rotor current and power consumption should be within a certain data range, and the data range should be able to prove that the motor performance meets the requirements of Articles 4, 4 to 4.9 of this standard 4.2 The unevenness of the air gap of the red motor should not exceed the requirements of Table 13, Table 13
Nominal value of air gap:
One uneven gap, which is defined as
No. /++80-0
Wu: 81,, is the air gap value measured at a distance of 120 0.35
4.22 The motor has a circular shape. If the user and the manufacturer have other agreements, the motor output or other types, sizes and tolerances are allowed, but it should be able to transmit the rated power.
JB/T8682
4.23 The motor is made with six small terminals. From the main shaft end, the motor terminal box should be placed on the right side of the base; if both parties have an agreement, the terminal box is allowed to be placed on the left side of the base. There should be a grounding terminal in the motor terminal box, and a grounding aid mark should be set near the grounding terminal. This mark should ensure that it is not easy to wear during the entire service life of the motor. 4.24·When the alphabetical sequence of the terminal mark is the same as the voltage phase sequence direction of the three-phase power supply, the motor should rotate clockwise from the main shaft end.
S Inspection rules
5.1 Each motor must pass the inspection before it can leave the factory, and a product certificate should be attached. 5.2 Each motor shall be inspected and tested. The inspection and test items include: a) Mechanical inspection (according to the provisions of Article 5.5.5.6 of this standard); b) Determination of insulation resistance between stator winding and housing and between phases of winding (cold insulation resistance can be measured during inspection and test, but it should be ensured that the insulation resistance in hot state is not lower than the provisions of Article 4.13 of this standard); c) Determination of DC current of stator winding in actual cold state; d) Voltage test
e) Interphase insulation test
f) Determination of no-load current and loss;
Note: During type test, the no-load characteristic line is taken; g) Determination of locked-rotor current and loss;
Note: During type test, the locked-rotor characteristic line is taken statically; b) Determination of noise (according to the provisions of Article 5.6 of this standard); i) Determination of alarm (according to the provisions of Article 5.6 of this standard). 5.3 In case of any of the following conditions, type test must be carried out. ) When the first trial production or small batch production is carried out after the identification and finalization; b) When the changes in the motor design or process are sufficient to cause certain characteristics and parameters to change; ) When the inspection test results and the previous type test results have unacceptable deviations; d) Regular sampling tests of motors produced in batches, once a year. When the number of sampling tests required is too large, the sampling interval can be appropriately extended, but at least once every two years. 5.4 The plastic test items of the motor include: a) All items of the inspection test:
b) Temperature rise test;
c) Determination of efficiency and power factor;
d) Short-time over-torque test:
e) Determination of maximum torque during short-time over-torque test:
) Determination of minimum torque during starting; g) Overspeed test.
5.5 The mechanical inspection items of the motor include: a) Rotation inspection: The motor should rotate smoothly and quickly without stopping; b) Appearance inspection: Check whether the motor is assembled correctly and completely, and the paint on the motor surface should be dry, complete and even, without stains, damage, cracks, etc.
c) Inspection of installation dimensions, external dimensions and key dimensions. The installation dimensions and external dimensions should comply with the provisions of Article 3.8.1 of the standard, and the key dimensions should comply with the provisions of Article 3.9.2 of this standard. e) Inspection of circular runout, parallelism and flatness of the foot support surface, axial runout and keyway symmetry: Circular runout shall comply with the provisions of Article 3.8.3 of this standard; Parallelism and flatness of the foot support surface shall comply with the provisions of Articles 3.8.5 and 3.8.6 of this standard respectively; axial runout shall comply with the provisions of Article 3.8.7 of this standard; Keyway symmetry shall comply with the provisions of Article 3.8.8 of this standard. Flatness of the foot support surface and symmetry of the keyway are allowed to be inspected on the parts. e) Inspection of circular runout, straightness, position and coaxiality of the two pillars of IM9301 motor shall comply with the provisions of Article 3.8.4 of this standard.
5.6 Items a and b of Article 5.5 of this standard must be checked for each unit, and items h and i of Article 5.2 and items cd and e of Article 5.5 shall be checked randomly. The method of random inspection shall be specified by the manufacturer.
5.7 The test methods for the various tests specified in Articles 5.2 (except e, h and 1) and 5.4 of this standard shall be carried out in accordance with GB/T1032. Article 5.2 e shall be carried out in accordance with JB/Z294. Article 5.2 h shall be carried out in accordance with GB/T10069.1, and Article 5.2 1 shall be carried out in accordance with GB/T10058.1. The inspection of installation dimensions and tolerances specified in Article 5.5 shall be carried out in accordance with GB/T4772.1. 5.8 The test of motor housing protection grade, 40℃ alternating damp heat test and air illumination unevenness inspection may be carried out when the product structure is finalized or when there are major changes in structure and process. The test method of external protection engine level shall be carried out in accordance with GB/T4912.1. The 40C alternating damp heat test shall be carried out in accordance with GB/T12665.
6 Marking, packaging and warranty period
6.1 The nameplate material and the engraving method of the data on the nameplate shall ensure that the handwriting is not easily erased during the entire service period of the motor. 6.2 The nameplate shall be fixed on the upper half of the motor base, and the items to be marked are as follows: a) Manufacturer name;
b) Motor name (three-phase asynchronous motor) c) Motor model:
d) External protection level (allowed to be replaced by a chrome plate) e) Rated power, kw:
f) Rated frequency, Hz.1
g) Rated current, A;
h) Rated voltage, V;
) Rated speed, r/min
i) Insulation grade;
k) Wiring method (△ or Y);
[) Noise limit (as specified in the order contract); m) Manufacturer's year and month of production and product number: n) Weight, kgi
o) Standard abbreviation
63 The six output terminals of the motor winding and the graded positions on the terminal board should be marked with corresponding signs, and the markings should be indelible throughout the entire service life of the motor. The marking state shall be in accordance with the provisions of Table 14. 14
Name of winding
First phase
Third phase
Outgoing line standard
6.4 The shaft extension key of the motor must be tied to the shaft, and the shaft extension and the flat key surface should be rust-proof and protected. 65 The shaft extension key of the motor, the maintenance instructions (at least one copy for a batch of motors of the same type) and the product certificate should be provided to the user together with each motor.
JB/T8682
6.6 The packaging of the motor should ensure that it can be stored and transported under normal conditions. 6.7 The text and marks on the outer wall of the packing box should be neat and the contents are as follows: a) Name of the shipping station and manufacturer b) Name of the receiving station and receiving unit c) Motor model and product number d) Net weight of the motor and gross weight of the box e) Box size The door should be marked with words such as "Handle with care" and "Prevent moisture" at appropriate positions outside the box, and the graphics should comply with the GI191 standard. 6.& If the user uses and stores the motor correctly according to the provisions of the operating and maintenance instructions, the manufacturer should ensure that the motor can operate well within one year of use, but no more than two years from the date of shipment from the manufacturer. If the motor breaks down or cannot work normally due to poor manufacturing quality within this specified time, the manufacturer should repair or replace parts or motors for the user free of charge. 10
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