Some standard content:
- .
JB5317.3-91
Reprint instructions
This standard is based on the 1991 edition of JB5317.3 "Conical rotor motor for chain electric reeds" On the basis, according to the needs of domestic and foreign technological development, three-phase (cylindrical rotor) asynchronous motor and disc brake motor are added as special motors for electric chain hoists. This version has the following main differences from the 1991 version: the name of the standard was changed to "Motor for Electric Chain Hoist"; the scope of application of the standard was expanded;
added reference standards;
added corresponding Technical requirements for two special motors, etc. 172
Machinery Industry Standard of the People's Republic of China
Motor for electric chain hoist
1 Subject content and scope of application
JB 5317.3-91
This standard Specifies the types, basic parameters, technical requirements, test methods and inspection rules, as well as signs of conical rotor motors, disc brake motors and three-phase (cylindrical rotor) asynchronous motors (hereinafter referred to as motors) for electric chain hoists, Packaging, transportation and storage requirements.
This standard is mainly applicable to motors for general-purpose electric chain hoists. It is also suitable for motors for special-purpose electric chain hoists (such as scaffolding hoists) and light and small lifting equipment such as wire rope electric hoists and electric hoists. Electric motors are used for the operating mechanisms of single-girder and electric single-girder suspension cranes.
For motors and voltages that do not meet the requirements of 3.2.2, motors with a frequency of 60Hz can also be adopted as a reference. 2 Reference standards
GB 191—90 ←
Packaging, storage and transportation pictorial mark
Basic technical requirements for rotating electrical machines
GB 755—871
GB 997 --81
GB 1032—85
GB 1184—80
Motor structure installation type and code
Test method for three-phase asynchronous motor
Shape and Provisions for position tolerances without tolerances GB/T1993-
Cooling method for rotating electrical machines
-93
GB4942.185 Motor shell protection classification
GB 10069.2--88| |tt||Rotating electrical machine noise measurement methods and limits
, Simple noise measurement method
GB/T 13306—91
Signage
ZB J80 013. 3— 89
Conical rotor motor for wire rope electric hoist JB 5317. 2—91
JB/Z294—87
JB/Z 346--89
3 types, Basic parameters
3.1 Type
Technical conditions of electric chain hoist
Test method for insulation between turns of AC low-voltage motor scattered embedded windings Test limits for insulation between turns of scattered embedded windings of AC low-voltage motors 3.1. 1 Motors are divided into the following four types according to their uses: single-speed motor for lifting;
a.
b.
two-speed motor for lifting:
Single-speed motor for operation;
c.
d, two-speed motor for operation.
3.1.2 The model representation method is as specified in Appendix A (Supplement). 3.1.3 The protection level of the motor shell complies with the requirements of IP54 specified in GB4942.1 (except for the fan cover and brake seat). 3.1.4 The cooling method of the motor should comply with IC0041 or 1C0141 in GB/T1993. The Ministry of Machinery Industry of the People's Republic of China approved the implementation on 1992-07-01 on 1991-07-01
173
JB5317.3---91
3.1.5 electric motor The installation type should comply with IM3001 (IMB5) IM4401 (IMB9) and IM5102 in GB997. 3.2 Basic parameters
3.2.1 The working system of the motor is S4 specified in GB755, the motor's base load duration rate and hourly The equivalent number of starts shall preferably comply with the provisions of Table 1.
Table 1
Baseline load duration %
Lifting single-speed motor
Lifting two-speed motor
Running single-speed motor||tt| |Running two-speed motor
40
40/20
40 or 60
40/20
3.2.2 The rated voltage of the motor is 380V, Rated frequency is 50Hz. Equivalent number of starts per hour/h
240
240/240
240
240/120
3.2.3 Motor in reference working system The rated power is preferably manufactured according to the following powers: 0.1, 0.15, 0.2.0.3, 0.4.0.5, 0.8, 1.0, 1.6, 2.0.2.5, 3.1, 4.0kW.
3.2.4 two-speed motor based on The rated power when pushing the working mode: the high-speed extreme is as specified in 3.2.3, and the low-speed extreme is determined by the equal relationship of the speed ratio.
3.2.5 When the working level of the electric chain hoist changes, the corresponding power value of the motor should be determined according to the principle of the allowable temperature rise under the rated power in the reference working system. The manufacturer shall specify in the corresponding documents given in . 3.2.6 The guaranteed value of the moment of inertia Jm of the lifting motor rotor should meet the design requirements, and its tolerance is +10% of the guaranteed value. 4 Technical requirements
4.1 The electric motor shall comply with the requirements of this standard. And it is manufactured according to the drawings and technical documents approved by the prescribed procedures. 4.2 When the motor is used under the following working conditions, it should be able to ensure normal operation. 4.2.1 The altitude of the usage location shall not exceed 1000m. 4.2.2 The maximum temperature of the ambient air at the place of use changes with the seasons, but generally does not exceed 40C. 4.2.3 The minimum temperature of the ambient air at the place of use is -25C. 4.2.4 When the operating conditions of the motor are different from the regulations, the temperature rise limit should be revised according to the provisions of 5.3.4 in GB755. 4.2.5 The monthly average maximum relative humidity in the wettest month is 90%, and the average minimum temperature in that month is not higher than 25C. 4.3 During the operation of the motor, the deviation of the power supply voltage and frequency from the rated value shall comply with the provisions of 4.3 in GB755. 4.4 The motor adopts Class F insulation. When the altitude and ambient air temperature comply with the provisions of 4.2.1 and 4.2.2, the motor winding temperature rise limit (resistance method) should not exceed 105K. The allowable temperature of the bearing (thermometer method) should not exceed 95C. Note: If the altitude or ambient air temperature of the test site is different from the provisions of 4.2.1 and 4.2.2, the temperature rise limit should be revised according to the provisions of 5.3.5 in GB755. The allowable bearing temperature refers to the value at the ambient air temperature specified in 4.2.2. When measured at a temperature lower than the specified ambient air temperature, the bearing temperature should be the actual measured temperature plus the difference between the specified ambient temperature and the actual ambient temperature. 4.5 When the electric chain hoist lifts the rated load, when the terminal voltage of the motor is 90% of the rated voltage, the motor must ensure that each mechanism can work normally. For conical rotor motors and disc brake motors, there is residual magnetic pull. 4.6 When the two-phase power supply is balanced, the deviation of any one of the three-phase no-load current of the motor from the three-phase average value shall not exceed ±10% of the three-phase average value.
4.7 The motor is rated at the base rated power and At rated voltage, the guaranteed values ??of locked-rotor torque and the ratio of maximum torque to rated torque should not be less than those specified in Table 2. The guaranteed value of the ratio of locked-rotor current to rated current should not be greater than the provisions of Table 2; for two-speed motors, the guaranteed value of the high-speed pole is consistent with the provisions of Table 2, and the guaranteed value of the low-speed pole corresponds to the same power in Table 2 Guaranteed value recharge is allowed to be reduced by 15%. 174
Lifting motor
Running motor
Rated power
kw
0.3
≥0. 3~0. 8| |tt||>0. 8 ~ 1. 6
>1.6
0.3
70. 3~0. 8
>0.8
JB 5317.3--91
Table 2
Stall-rotor torque
Rated torque
2. 0
2. 2
2 . 5
2.7
1.8
2.0
2.2
4.8. The tolerance of the guaranteed electrical performance value of the motor shall comply with the provisions of Table 3. Table 3
Serial number
2
3
1
Name
Name
Maximum torque||tt| |Stall-rotor torque
Stall-rotor current
Maximum torque
Rated torque
2.0
2.2
2. 5| |tt||2.7
1.8
2.0
2.2
4.9 The insulation resistance value of the motor stator winding should not be less than 0.38 in the hot state or after the temperature rise test M2. Capacity
Locked rotor current
Rated current
4
4.5
5
5.5
4||tt| |4.5
5
Difference
-10% of guaranteed value
-15% of guaranteed value
+20% of guaranteed value||tt ||4.10 The hoisting motor should be able to withstand the guaranteed value of the maximum torque specified in 4.7 (allowed to take into account the tolerance) in a hot state and with gradually increasing torque for 15 seconds without sudden changes in speed, stalling and harmful effects. deformation, at this time, the voltage and frequency should be the rated values. 4.11 The stator winding of the motor should be able to withstand the inter-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. 4.12 The motor stator winding should be able to withstand a 1-minute withstand voltage test without breakdown. The frequency of the test power supply is 50Hz, and the AC voltage should be a sinusoidal waveform as much as possible. The effective value of the voltage is 1760V. Repeat the withstand voltage test and rewinding. The winding test should comply with the provisions of 6.2.3 in GB755.
4.13 The motor should be able to withstand increasing the speed to 120% of the rated value for 2 minutes under no-load conditions without any harmful deformation. 4.14 The motor should ensure the air gap specified in the design, and the air gap deviation should be ±0.29. 4.15 The motor rotor should be calibrated for dynamic balance, and the balance accuracy grade is G6.34.16. The guaranteed value of the static braking torque of the hoisting motor should meet the requirements of the chain electric Hoist performance requirements. The value is at least 2.5 times the static load torque on the motor shaft, see Appendix B (reference part), and the operating motor is 1.1~~1.4 times the rated torque on the shaft. Note: The static load moment value is caused by the rated load of the base model of the motor, and is converted to the rated static load moment on the motor shaft. This data should be provided when applying for the motor model number.
4.17 The braking of the motor should be smooth and reliable, and the braking surface should ensure good contact; while running, ensure that the brake ring does not rub against the braking surface: the brake ring can be adjusted or replaced after wear.
4.18 The conical rotor motor should ensure that the axial momentum during starting and braking is 0.6~~1.5mm. The braking clearance of disc brake motor is 0.5~1mm. The braking clearance of three-phase (cylindrical rotor) asynchronous motor is 0.5~~1.5mm. 4.19 The lead wire of the motor should have a permanent phase sequence mark, the motor wiring device should have a grounding screw, and a permanent grounding mark should be set near the grounding screw
4.20 When the motor shaft extension is a gear, the gear accuracy should be Comply with the provisions of 3.1.10 in JB5317.2. 4.21 The radial runout of the circumferential surface at the midpoint of the shaft extension joint part when the shaft rotates should not be greater than the requirements in Table 4. 175
Shaft extension nominal diameter D
18
>18
JB 5317.3--91
Table 4
Radial runout limit Value
0.04
0.05
mm
4.22 The radial runout of the flange stop diameter to the shaft centerline and the end surface of the flange support facing perpendicular to the shaft centerline The runout should not be greater than the requirements in Table 5.
Table 5
Nominal diameter of flange stop
195
> 95
4.23
4.24
convex Runout limit of flange and supporting surface
0.08
0.10
mm
When the motor is installed, the diameter of the outer circle of the stator and the outer circle of the rotor The circular runout shall not be lower than level 9 specified in GB1184. The noise value of the A-weighted sound power level measured when the motor is no-load should not exceed the requirements in Table 6. Table 6
Motor power
kw
o.5
>0. 5 --1. 1
21. 1~2. 2| |tt||>2. 2~~ 4
3000
75
79
83
87
4.25 motors are tight The fastening bolts must have anti-loosening measures. Sync
Speed ??r/min
1500
Sound
70
75
78
82||tt| |power
rate
1000
level.dB(A)
67
73
75
79| |tt||4.26 The reliable life of the motor should meet the requirements of the corresponding life regulations in JB5317.2. 5 Test methods
5.1-General inspection test
750
65
71
74
77
5.1 .1 Appearance inspection: Check whether the assembly is correct and complete. The coating on the painted surface should be uniform, bright, and consistent in color, and there should be no defects such as paint leakage, wrinkles, and variegated colors. Obvious casting defects and damage are not allowed. 5.1.2 When the motor is running without load, the bearings should be smooth, brisk and without stagnation. The sound should be uniform and free of noise. 5.1.3 When the motor is running without load and starting and braking, the brake should work normally and there should be no abnormality during braking. The amount of axial movement (or braking clearance) should meet the requirements of 4.18.
5.1.4 The rotor (conical rotor motor should include brake wheel) undergoes routine testing on the dynamic balancing machine. 5.1.5 Determination of the air gap of the motor
Use a feeler gauge to measure the air gaps at three points between the stator and the rotor through three evenly spaced holes (this method is preferred). You can also use three fuses of equal size and larger than the standard value of the measured air gap, evenly arranged in the stator chamber along the circumference (the disc brake motor is arranged on the surface of the stator), and then push the rotor without a coil spring, Apply a certain amount of pressure to keep it in normal installation or working condition, then take out the fuse and measure the thickness at its center point (that is, the amount of air gap). 5.2 The measurement of the insulation resistance between the windings and the casing and the windings shall be in accordance with the provisions of Chapter 3 of GB1032. 5.3 The DC resistance of the winding in the actual cooling state is measured according to the provisions of Chapter 4 of GB1032. 5.4 The no-load test shall be carried out in accordance with the provisions of Chapter 6 of GB1032. 5.5 The locked rotor test shall be carried out in accordance with the provisions of Chapter 7 of GB1032. 176
JB 5317.3—91
5.6 The withstand voltage test between winding phases and winding-to-casing shall be carried out in accordance with the provisions of Chapter 17 of GB1032. 5.7 The stator winding inter-turn impact withstand voltage test shall be carried out in accordance with the provisions of JB/Z294. 5.8 The static braking torque of conical rotor motors and disc brake motors shall be determined in accordance with the provisions of 5.9 in ZBJ80013.3. 5.9 Motor load test: measure the relationship curve between input power, stator current, power factor, efficiency, slip and output power. The test method is in accordance with the provisions of Chapter 9 of GB1032.
5.10 The measurement of the axial magnetic pull and axial movement (or braking clearance) of conical rotor motors and disc brake motors shall be carried out in accordance with the provisions of 5.14 in ZBJ80013.3. 5.11 Temperature rise test: According to the provisions of Chapter 8 of GB1032 or installed on the complete machine, the temperature rise test method shall follow the provisions of 4.2.2.7 and 4.2.2.8 of JB5317.2.
5.12 Noise measurement: According to the provisions of GB10069.2. 5.13 Determination of maximum torque: According to the provisions of Chapter 11 of GB1032. Short-time over-torque test: Carry out according to the provisions of Chapter 10 of GB1032. 5.14
5.15 Overspeed test: Installed on a special device, conducted in accordance with the provisions of Chapter 13 of GB1032. 5.16 Measurement of moment of inertia: According to the provisions of Chapter 18 of GB1032. 5.17 Voltage reduction test: Under the condition that the terminal voltage of the motor is reduced to 90% of the rated voltage, drive the rated load on the electric chain hoist or use a proven simulated load method. At this time, each mechanism (or the motor itself) should be able to start. and work normally. 5.18 Shell protection performance test: according to GB4942.Proceed as specified in 1. 6 Inspection Rules
Product inspection is divided into factory inspection and type testing. 6.1 Factory inspection
Each motor must pass the inspection before leaving the factory, and be accompanied by a product certificate. The inspection includes the following items. 6.1.1 General inspection test
Appearance inspection:
a.
b. Motor idling test;
Motor air gap determination (checked during the process): c.
d. Inspection of the gear accuracy and spline circular runout at the shaft extension end, inspection of the radial circular runout of the flange stop and end face, and inspection of the radial circular runout of the outer circumference of the stator and rotor for installed motors (can be carried out in the process Inspection during the process); e.
6. 1. 2
Inspection of installation dimensions and overall dimensions.
Measurement of the insulation resistance between the windings and the casing and the windings. 6.1.3
Measurement of DC resistance of winding in actual cooling state. 6.1. 4
Inter-turn insulation impulse voltage test.
6.1.5 Withstand voltage test
6.1.6 Measurement of no-load current and input power. 6.1.7 Measurement of locked-rotor current and input power. 6.1.8 Determination of static braking torque.
6.1.9 Measurement of noise.
Note: For man-mounted motors, the tests of 6.1.6 and 6.1.7.6.1.9 are performed on the complete machine. The test of 6.1.8 can be replaced by checking the brake spring. 6.2 Type test
Type test shall be carried out for any of the following situations: a.
New products or trial-formulated products of old products transferred to the factory: b. After formal production, if there are major changes in structure, materials, and processes that may affect product performance: c. Regular inspection during normal production, at least once a year, no less than 2 units each time; 177
.
. +
.
....|| tt||...
..
d.
e.
f.
When the product has been discontinued for more than 1 year·When production is resumed; JB 5317.3--91
When there is an impermissible deviation between the inspection test results and the previously conducted type test results; when the national quality supervision agency proposes a requirement for type inspection. In addition to all factory inspection items, the type test should also conduct the following inspections. Load test: measure the relationship curve between input power, stator current, power factor, efficiency, slip rate and output power. 6.2.11
6.2.2 Determination of maximum torque.
Measure the locked-rotor characteristic curve and no-load characteristic curve. 6.2.3
6.2.4
Short-time over-torque test.
Determination of no-load axial magnetic pulling force.
6.2.5
6.2.6 Temperature rise test.
6.2.7 Overspeed test.
6.2.8 Determination of moment of inertia.
6.2.9 Shell protection performance test.
6.2.10 Pressure reduction test.
Note: The inspections of 6.2.7, 6.2.8, and 6.2.9 are only performed when the product is finalized or when the design changes are sufficient to cause relevant performance changes. For man-mounted motors, the type test is carried out by assembling the housing and other supporting parts according to the requirements of cooling method and housing protection level. 7 Marking, packaging, transportation and storage
7.1 The marking method of the sign material and the data on the sign and other marks should be able to ensure that the writing and marks are not easy to be erased during the entire use period of the motor
7.2 The product label should comply with the regulations of GB/T13306. The label should be fixed in an appropriate position and generally should indicate the following items: motor name;
a.
b.
c.| |tt||d.
e.
f.
g.
h.
j.
k.|| tt||1.
m.
n.
0.
p.
q-
r.||tt ||s.
Motor model;
rated power, kw
rated speed, r/min;
duty, load duration;
Number of phases;
rated voltage.V;
rated current, A;
rated frequency, Hz;
wiring method:
insulation level;| |tt||Protection level;
Moment of inertia, kg·m\;
Static braking torque, N·m;
Weight, kg;
Production license Certificate number;
Factory number;
Factory date;
Manufacturing name.
7.3 The shaft extension of the electric motor and the assembly mating surface with the hoist body should have anti-rust and protective measures. 7.4 The packaging of the motor should ensure that under normal storage and transportation conditions, the motor will not be affected by moisture or damage due to poor packaging within 1 year from the date of shipment.
178
JB 5317.3—91
7.5 The words and signs on the outside of the packaging box should be clear and neat, and the content is as follows: Shipping station and manufacturer name; .
b Receiving station and receiving unit name;
c. Motor model and factory number;
d.
e.
The net weight of the motor and the gross weight of the box: box size, and the words "Do not turn upside down" are marked on the appropriate location outside the box. ", "moisture-proof", "center of gravity" and other words and symbols, their graphics should comply with the provisions of GB191.
7.6 motors should come with the following documents when leaving the factory: a.
Product Certificate; www.bzxz.net
b, Operation and Maintenance Instructions.
8
Quality Guarantee Period
The manufacturer shall guarantee that the motors supplied will last for 18 months from the date of use, provided that the user keeps them properly and uses them reasonably. It can work normally within 24 months from the date of shipment, otherwise the manufacturer shall repair or replace it free of charge. 179
:
A1 conical rotor motor model representation method: YHHZ
JB 5317.3—91
Appendix A
Motor model representation method||tt ||(supplement)
One number of slow poles
Number of fast poles
One core length serial number (digital representation)
-center height of the base, mm
Equipped machine model (digital representation)
Lifting motor (no code)
Running motor (Y)
Conical rotor motor for electric chain hoist Note: The equipped machine model needs to be applied to the professional technical center. It can be used only after approval. Marking example:
a.
The model number is 1, the center height of the base is 90mm, the length of the No. 1 iron core. The lifting motor with 2 poles: motor YHHZ1901-2JB5317.3 —91 model number is 1, the center height of the base is 90mm, the length of the No. 1 core, and the number of poles is 2 poles: b.
Motor YHHZY1901-2 JB5317.3-91 core||tt ||Motive:
A2
The model number is 1. The center height of the machine base is 100mm, the length of the No. 3 iron core, the fast pole is 2 poles, the slow speed is 8 poles, the lifting motor YHHZ11003 -2/8
JB5317.3—91
Disc brake motor model representation method: YHHP
Number of slow poles
Number of fast poles||tt| |Power, W
Machine model (digital representation)
Together with rising motor (no code)
-Running motor (Y)
Chain electric hoist Note for disc brake motors: The model of the machine must be applied to the professional technical center and approved before adoption. Marking example:
a.
180
Hoisting motor with model number 1, power 200W and 4 poles:
d． Inspection of the gear accuracy and spline circular runout at the shaft extension end, inspection of the radial circular runout of the flange stop and end face, and inspection of the radial circular runout of the outer circumference of the stator and rotor for installed motors (can be carried out in the process Inspection during the process); e.
6. 1. 2
Inspection of installation dimensions and overall dimensions.
Measurement of the insulation resistance between the windings and the casing and the windings. 6.1.3
Measurement of DC resistance of winding in actual cooling state. 6.1. 4
Inter-turn insulation impulse voltage test.
6.1.5 Withstand voltage test
6.1.6 Measurement of no-load current and input power. 6.1.7 Measurement of locked-rotor current and input power. 6.1.8 Determination of static braking torque.
6.1.9 Measurement of noise.
Note: For man-mounted motors, the tests of 6.1.6 and 6.1.7.6.1.9 are performed on the complete machine. The test of 6.1.8 can be replaced by checking the brake spring. 6.2 Type test
Type test shall be carried out for any of the following situations: a.
New products or trial-formulated products of old products transferred to the factory: b. After formal production, if there are major changes in structure, materials, and processes that may affect product performance: c. Regular inspection during normal production, at least once a year, no less than 2 units each time; 177
.
. +
.
....|| tt||...
..
d.
e.
f.
When the product has been discontinued for more than 1 year·When production is resumed; JB 5317.3--91
When there is an impermissible deviation between the inspection test results and the previously conducted type test results; when the national quality supervision agency proposes a requirement for type inspection. In addition to all factory inspection items, the type test should also conduct the following inspections. Load test: measure the relationship curve between input power, stator current, power factor, efficiency, slip rate and output power. 6.2.11
6.2.2 Determination of maximum torque.
Measure the locked-rotor characteristic curve and no-load characteristic curve. 6.2.3
6.2.4
Short-time over-torque test.
Determination of no-load axial magnetic pulling force.
6.2.5
6.2.6 Temperature rise test.
6.2.7 Overspeed test.
6.2.8 Determination of moment of inertia.
6.2.9 Shell protection performance test.
6.2.10 Pressure reduction test.
Note: The inspections of 6.2.7, 6.2.8, and 6.2.9 are only performed when the product is finalized or when the design changes are sufficient to cause relevant performance changes. For man-mounted motors, the type test is carried out by assembling the housing and other supporting parts according to the requirements of cooling method and housing protection level. 7 Marking, packaging, transportation and storage
7.1 The marking method of the sign material and the data on the sign and other signs should be able to ensure that the writing and signs are not easy to be erased during the entire use period of the motor
7.2 The product label should comply with the regulations of GB/T13306. The label should be fixed in an appropriate position and generally should indicate the following items: motor name;
a.
b.
c.| |tt||d.
e.
f.
g.
h.
j.
k.|| tt||1.
m.
n.
0.
p.
q-
r.||tt ||s.
Motor model;
rated power, kw
rated speed, r/min;
duty, load duration;
Number of phases;
Rated voltage.V;
Rated current, A;
Rated frequency, Hz;
Wiring method:
Insulation level;| |tt||Protection level;
Moment of inertia, kg·m\;
Static braking torque, N·m;
Weight, kg;
Production license Certificate number;
Factory number;
Factory date;
Manufacturing name.
7.3 The shaft extension of the electric motor and the assembly mating surface with the hoist body should have anti-rust and protective measures. 7.4 The packaging of the motor should ensure that under normal storage and transportation conditions, the motor will not be affected by moisture or damage due to poor packaging within 1 year from the date of shipment.
178
JB 5317.3—91
7.5 The words and signs on the outer wall of the packaging box should be clear and neat, and the content is as follows: Shipping station and manufacturer name; .
b Receiving station and receiving unit name;
c. Motor model and factory number;
d.
e.
The net weight of the motor and the gross weight of the box: box size, and the words "Do not turn upside down" are marked on the appropriate location outside the box. ", "moisture-proof", "center of gravity" and other words and symbols, their graphics should comply with the provisions of GB191.
7.6 motors should come with the following documents when leaving the factory: a.
Product Certificate;
b, Operation and Maintenance Instructions.
8
Quality Guarantee Period
The manufacturer shall guarantee that the motors supplied will last for 18 months from the date of use, provided that the user keeps them properly and uses them reasonably. It can work normally within 24 months from the date of shipment, otherwise the manufacturer shall repair or replace it free of charge. 179
:
A1 conical rotor motor model representation method: YHHZ
JB 5317.3—91
Appendix A
Motor model representation method||tt ||(supplement)
One number of slow poles
Number of fast poles
One core length serial number (digital representation)
-center height of the base, mm
Equipped machine model (digital representation)
Lifting motor (no code)
Running motor (Y)
Conical rotor motor for electric chain hoist Note: The equipped machine model needs to be applied to the professional technical center. It can be used only after approval. Marking example:
a.
The model number is 1, the center height of the base is 90mm, the length of the No. 1 iron core. The lifting motor with 2 poles: motor YHHZ1901-2JB5317.3 —91 model number is 1, the center height of the base is 90mm, the length of the No. 1 core, and the number of poles is 2 poles: b.
Motor YHHZY1901-2 JB5317.3-91 core||tt ||Motive:
A2
The model number is 1. The center height of the machine base is 100mm, the length of the No. 3 iron core, the fast pole is 2 poles, the slow speed is 8 poles, the lifting motor YHHZ11003 -2/8
JB5317.3—91
Disc brake motor model representation method: YHHP
Number of slow poles
Number of fast poles||tt| |Power, W
Machine model (digital representation)
Together with rising motor (no code)
-Running motor (Y)
Chain electric hoist Note for disc brake motors: The model of the machine must be applied to the professional technical center and approved before adoption. Marking example:
a.
180
Hoisting motor with model number 1, power 200W and 4 poles:
d． Inspection of the gear accuracy and spline circular runout at the shaft extension end, inspection of the radial circular runout of the flange stop and end face, and inspection of the radial circular runout of the outer circumference of the stator and rotor for installed motors (can be carried out in the process Inspection during the process); e.
6. 1. 2
Inspection of installation dimensions and overall dimensions.
Measurement of the insulation resistance between the windings and the casing and the windings. 6.1.3
Measurement of DC resistance of winding in actual cooling state. 6.1. 4
Inter-turn insulation impulse voltage test.
6.1.5 Withstand voltage test
6.1.6 Measurement of no-load current and input power. 6.1.7 Measurement of locked-rotor current and input power. 6.1.8 Determination of static braking torque.
6.1.9 Measurement of noise.
Note: For man-mounted motors, the tests of 6.1.6 and 6.1.7.6.1.9 are performed on the complete machine. The test of 6.1.8 can be replaced by checking the brake spring. 6.2 Type test
Type test shall be carried out for any of the following situations: a.
New products or trial-formulated products of old products transferred to the factory: b. After formal production, if there are major changes in structure, materials, and processes that may affect product performance: c. Regular inspection during normal production, at least once a year, no less than 2 units each time; 177
.
. +
.
....|| tt||...
..
d.
e.
f.
When the product has been discontinued for more than 1 year·When production is resumed; JB 5317.3--91
When there is an impermissible deviation between the inspection test results and the previously conducted type test results; when the national quality supervision agency proposes a requirement for type inspection. In addition to all factory inspection items, the type test should also conduct the following inspections. Load test: measure the relationship curve between input power, stator current, power factor, efficiency, slip rate and output power. 6.2.11
6.2.2 Determination of maximum torque.
Measure the locked-rotor characteristic curve and no-load characteristic curve. 6.2.3
6.2.4
Short-time over-torque test.
Determination of no-load axial magnetic pulling force.
6.2.5
6.2.6 Temperature rise test.
6.2.7 Overspeed test.
6.2.8 Determination of moment of inertia.
6.2.9 Shell protection performance test.
6.2.10 Pressure reduction test.
Note: The inspections of 6.2.7, 6.2.8 and 6.2.9 are only carried out when the product is finalized or when the design changes are enough to cause relevant performance changes. For the type test of the man-mounted motor, the shell and other supporting parts are prepared and assembled according to the cooling method and shell protection level requirements. 7 Marking, packaging, transportation and storage
7.1 The marking method of the sign material and the data on the sign and other marks should be able to ensure that the writing and marks are not easy to be erased during the entire use period of the motor
7.2 The product label should comply with the regulations of GB/T13306. The label should be fixed in an appropriate position and generally should indicate the following items: motor name;
a.
b.
c.| |tt||d.
e.
f.
g.
h.
j.
k.|| tt||1.
m.
n.
0.
p.
q-
r.||tt ||s.
Motor model;
rated power, kw
rated speed, r/min;
duty, load duration;
Number of phases;
Rated voltage.V;
Rated current, A;
Rated frequency, Hz;
Wiring method:
Insulation level;| |tt||Protection level;
Moment of inertia, kg·m\;
Static braking torque, N·m;
Weight, kg;
Production license Certificate number;
Factory number;
Factory date;
Manufacturing name.
7.3 The shaft extension of the electric motor and the assembly mating surface with the hoist body should have anti-rust and protective measures. 7.4 The packaging of the motor should ensure that under normal storage and transportation conditions, the motor will not be affected by moisture or damage due to poor packaging within 1 year from the date of shipment.
178
JB 5317.3—91
7.5 The words and signs on the outside of the packaging box should be clear and neat, and the content is as follows: Shipping station and manufacturer name; .
b Receiving station and receiving unit name;
c. Motor model and factory number;
d.
e.
The net weight of the motor and the gross weight of the box: box size, and the words "Do not turn upside down" are marked on the appropriate location outside the box. ", "moisture-proof", "center of gravity" and other words and symbols, their graphics should comply with the provisions of GB191.
7.6 motors should come with the following documents when leaving the factory: a.
Product Certificate;
b, Operation and Maintenance Instructions.
8
Quality Guarantee Period
The manufacturer shall guarantee that the motors supplied will last for 18 months from the date of use, provided that the user keeps them properly and uses them reasonably. It can work normally within 24 months from the date of shipment, otherwise the manufacturer shall repair or replace it free of charge. 179
:
A1 conical rotor motor model representation method: YHHZ
JB 5317.3—91
Appendix A
Motor model representation method||tt ||(supplement)
One number of slow poles
Number of fast poles
One core length serial number (digital representation)
-center height of the base, mm
Equipped machine model (digital representation)
Lifting motor (no code)
Running motor (Y)
Conical rotor motor for electric chain hoist Note: The equipped machine model needs to be applied to the professional technical center. It can be used only after approval. Marking example:
a.
The model number is 1, the center height of the base is 90mm, the length of the No. 1 iron core. The lifting motor with 2 poles: motor YHHZ1901-2JB5317.3 —91 model number is 1, the center height of the base is 90mm, the length of the No. 1 core, and the number of poles is 2 poles: b.
Motor YHHZY1901-2 JB5317.3-91 core||tt ||Motive:
A2
The model number is 1. The center height of the machine base is 100mm, the length of the No. 3 iron core, the fast pole is 2 poles, the slow speed is 8 poles, the lifting motor YHHZ11003 -2/8
JB5317.3—91
Disc brake motor model representation method: YHHP
Number of slow poles
Number of fast poles||tt| |Power, W
Machine model (digital representation)
Together with rising motor (no code)
-Running motor (Y)
Chain electric hoist Note for disc brake motors: The model of the machine must be applied to the professional technical center and approved before adoption. Marking example:
a.
180
Hoisting motor with model number 1, power 200W and 4 poles:
New products or old products transferred to factory for trial production: b. After formal production, if there are major changes in structure, materials, and processes that may affect product performance: c. Regular inspection during normal production, at least once a year, no less than 2 units each time; 177
.
. +
.
....|| tt||...
..
d.
e.
f.
When the product has been discontinued for more than 1 year·When production is resumed; JB 5317.3--91
When there is an impermissible deviation between the inspection test results and the previously conducted type test results; when the national quality supervision agency proposes a requirement for type inspection. In addition to all factory inspection items, the type test should also conduct the following inspections. Load test: measure the relationship curve between input power, stator current, power factor, efficiency, slip rate and output power. 6.2.11
6.2.2 Determination of maximum torque.
Measure the locked-rotor characteristic curve and no-load characteristic curve. 6.2.3
6.2.4
Short-time over-torque test.
Determination of no-load axial magnetic pulling force.
6.2.5
6.2.6 Temperature rise test.
6.2.7 Overspeed test.
6.2.8 Determination of moment of inertia.
6.2.9 Shell protection performance test.
6.2.10 Pressure reduction test.
Note: The inspections of 6.2.7, 6.2.8, and 6.2.9 are only performed when the product is finalized or when the design changes are sufficient to cause relevant performance changes. For man-mounted motors, the type test is carried out by assembling the housing and other supporting parts according to the requirements of cooling method and housing protection level. 7 Marking, packaging, transportation and storage
7.1 The marking method of the sign material and the data on the sign and other signs should be able to ensure that the writing and signs are not easy to be erased during the entire use period of the motor
7.2 The product label should comply with the regulations of GB/T13306. The label should be fixed in an appropriate position and generally should indicate the following items: motor name;
a.
b.
c.| |tt||d.
e.
f.
g.
h.
j.
k.|| tt||1.
m.
n.
0.
p.
q-
r.||tt ||s.
Motor model;
rated power, kw
rated speed, r/min;
duty, load duration;
Number of phases;
Rated voltage.V;
Rated current, A;
Rated frequency, Hz;
Wiring method:
Insulation level;| |tt||Protection level;
Moment of inertia, kg·m\;
Static braking torque, N·m;
Weight, kg;
Production license Certificate number;
Factory number;
Factory date;
Manufacturing name.
7.3 The shaft extension of the electric motor and the assembly mating surface with the hoist body should have anti-rust and protective measures. 7.4 The packaging of the motor should ensure that under normal storage and transportation conditions, the motor will not be affected by moisture or damage due to poor packaging within 1 year from the date of shipment.
178
JB 5317.3—91
7.5 The words and signs on the outside of the packaging box should be clear and neat, and the content is as follows: Shipping station and manufacturer name; .
b Receiving station and receiving unit name;
c. Motor model and factory number;
d.
e.
The net weight of the motor and the gross weight of the box: box size, and the words "Do not turn upside down" are marked on the appropriate location outside the box. ", "moisture-proof", "center of gravity" and other words and symbols, their graphics should comply with the provisions of GB191.
7.6 motors should come with the following documents when leaving the factory: a.
Product Certificate;
b, Operation and Maintenance Instructions.
8
Quality Guarantee Period
The manufacturer shall guarantee that the motors supplied will last for 18 months from the date of use, provided that the user keeps them properly and uses them reasonably. It can work normally within 24 months from the date of shipment, otherwise the manufacturer shall repair or replace it free of charge. 179
:
A1 conical rotor motor model representation method: YHHZ
JB 5317.3—91
Appendix A
Motor model representation method||tt ||(supplement)
One number of slow poles
Number of fast poles
One core length serial number (digital representation)
-center height of the base, mm
Equipped machine model (digital representation)
Lifting motor (no code)
Running motor (Y)
Conical rotor motor for electric chain hoist Note: The equipped machine model needs to be applied to the professional technical center. It can be used only after approval. Marking example:
a.
The model number is 1, the center height of the base is 90mm, the length of the No. 1 iron core. The lifting motor with 2 poles: motor YHHZ1901-2JB5317.3 —91 model number is 1, the center height of the base is 90mm, the length of the No. 1 core, and the number of poles is 2 poles: b.
Motor YHHZY1901-2 JB5317.3-91 core||tt ||Motive:
A2
The model number is 1. The center height of the machine base is 100mm, the length of the No. 3 iron core, the fast pole is 2 poles, the slow speed is 8 poles, the lifting motor YHHZ11003 -2/8
JB5317.3—91
Disc brake motor model representation method: YHHP
Number of slow poles
Number of fast poles||tt| |Power, W
Machine model (digital representation)
Together with rising motor (no code)
-Running motor (Y)
Chain electric hoist Note for disc brake motors: The model of the machine must be applied to the professional technical center and approved before adoption. Marking example:
a.
180
Hoisting motor with model number 1, power 200W and 4 poles:
New products or old products transferred to factory for trial production: b. After formal production, if there are major changes in structure, materials, and processes that may affect product performance: c. Regular inspection during normal production, at least once a year, no less than 2 units each time; 177
.
. +
.
....|| tt||...
..
d.
e.
f.
When the product has been discontinued for more than 1 year·When production is resumed; JB 5317.3--91
When there is an impermissible deviation between the inspection test results and the previously conducted type test results; when the national quality supervision agency proposes a requirement for type inspection. In addition to all factory inspection items, the type test should also conduct the following inspections. Load test: measure the relationship curve between input power, stator current, power factor, efficiency, slip rate and output power. 6.2.11
6.2.2 Determination of maximum torque.
Measure the locked-rotor characteristic curve and no-load characteristic curve. 6.2.3
6.2.4
Short-time over-torque test.
Determination of no-load axial magnetic pulling force.
6.2.5
6.2.6 Temperature rise test.
6.2.7 Overspeed test.
6.2.8 Determination of moment of inertia.
6.2.9 Shell protection performance test.
6.2.10 Pressure reduction test.
Note: The inspections of 6.2.7, 6.2.8, and 6.2.9 are only performed when the product is finalized or when the design changes are sufficient to cause relevant performance changes. For man-mounted motors, the type test is carried out by assembling the housing and other supporting parts according to the requirements of cooling method and housing protection level. 7 Marking, packaging, transportation and storage
7.1 The marking method of the sign material and the data on the sign and other signs should be able to ensure that the writing and signs are not easy to be erased during the entire use period of the motor
7.2 The product label should comply with the regulations of GB/T13306. The label should be fixed in an appropriate position and generally should indicate the following items: motor name;
a.
b.
c.| |tt||d.
e.
f.
g.
h.
j.
k.|| tt||1.
m.
n.
0.
p.
q-
r.||tt ||s.
Motor model;
rated power, kw
rated speed, r/min;
duty, load duration;
Number of phases;
Rated voltage.V;
Rated current, A;
Rated frequency, Hz;
Wiring method:
Insulation level;| |tt||Protection level;
Moment of inertia, kg·m\;
Static braking torque, N·m;
Weight, kg;
Production license Certificate number;
Factory number;
Factory date;
Manufacturing name.
7.3 The shaft extension of the electric motor and the assembly mating surface with the hoist body should have anti-rust and protective measures. 7.4 The packaging of the motor should ensure that under normal storage and transportation conditions, the motor will not be affected by moisture or damage due to poor packaging within 1 year from the date of shipment.
178
JB 5317.3—91
7.5 The words and signs on the outer wall of the packaging box should be clear and neat, and the content is as follows: Shipping station and manufacturer name; .
b Receiving station and receiving unit name;
c. Motor model and factory number;
d.
e.
The net weight of the motor and the gross weight of the box: box size, and the words "Do not turn upside down" are marked on the appropriate location outside the box. ", "moisture-proof", "center of gravity" and other words and symbols, their graphics should comply with the provisions of GB191.
7.6 motors should come with the following documents when leaving the factory: a.
Product Certificate;
b, Operation and Maintenance Instructions.
8
Quality Guarantee Period
The manufacturer shall guarantee that the motors supplied will last for 18 months from the date of use, provided that the user keeps them properly and uses them reasonably. It can work normally within 24 months from the date of shipment, otherwise the manufacturer shall repair or replace it free of charge. 179
:
A1 conical rotor motor model representation method: YHHZ
JB 5317.3—91
Appendix A
Motor model representation method||tt ||(supplement)
One number of slow poles
Number of fast poles
One core length serial number (digital representation)
-center height of the base, mm
Equipped machine model (digital representation)
Lifting motor (no code)
Running motor (Y)
Conical rotor motor for electric chain hoist Note: The equipped machine model needs to be applied to the professional technical center. It can be used only after approval. Marking example:
a.
The model number is 1, the center height of the base is 90mm, the length of the No. 1 iron core. The lifting motor with 2 poles: motor YHHZ1901-2JB5317.3 —91 model number is 1, the center height of the base is 90mm, the length of the core is No. 1, and the number of poles is 2 poles: b.
Motor YHHZY1901-2 JB5317.3-91 core||tt ||Motive:
A2
The model number is 1. The center height of the machine base is 100mm, the length of the No. 3 iron core, the fast pole is 2 poles, the slow speed is 8 poles, the lifting motor YHHZ11003 -2/8
JB5317.3—91
Disc brake motor model representation method: YHHP
Number of slow poles
Number of fast poles||tt| |Power, W
Machine model (digital representation)
Together with rising motor (no code)
-Running motor (Y)
Chain electric hoist Note for disc brake motors: The model of the machine must be applied to the professional technical center and approved before adoption. Marking example:
a.
180
Hoisting motor with model number 1, power 200W and 4 poles:
b.
c.
d.
e.
f.
g.
h.| |tt||j.
k.
1.
m.
n.
0.
p.|| tt||q-
r.
s.
Motor model;
rated power, kw
rated speed, r/min;|| tt||Work system, load duty cycle;
Phase number;
Rated voltage, V;
Rated current, A;
Rated frequency, Hz;|| tt||Wiring method:
Insulation level;
Protection level;
Moment of inertia, kg·m\;
Static braking torque, N·m;| |tt||Weight, kg;
Production license number;
Factory number;
Factory date;
Manufacturing name.
7.3 The shaft extension of the electric motor and the assembly mating surface with the hoist body should have anti-rust and protective measures. 7.4 The packaging of the motor should ensure that under normal storage and transportation conditions, the motor will not be affected by moisture or damage due to poor packaging within 1 year from the date of shipment.
178
JB 5317.3—91
7.5 The words and signs on the outer wall of the packaging box should be clear and neat, and the content is as follows: Shipping station and manufacturer name; .
b Receiving station and receiving unit name;
c. Motor model and factory number;
d.
e.
The net weight of the motor and the gross weight of the box: box size, and the words "Do not turn upside down" are marked on the appropriate location outside the box. ", "moisture-proof", "center of gravity" and other words and symbols, their graphics should comply with the provisions of GB191.
7.6 motors should come with the following documents when leaving the factory: a.
Product Certificate;
b, Operation and Maintenance Instructions.
8
Quality Guarantee Period
The manufacturer shall guarantee that the motors supplied will last for 18 months from the date of use, provided that the user keeps them properly and uses them reasonably. It can work normally within 24 months from the date of shipment, otherwise the manufacturer shall repair or replace it free of charge. 179
:
A1 conical rotor motor model representation method: YHHZ
JB 5317.3—91
Appendix A
Motor model representation method||tt ||(supplement)
One number of slow poles
Number of fast poles
One core length serial number (digital representation)
-center height of the base, mm
Equipped machine model (digital representation)
Lifting motor (no code)
Running motor (Y)
Conical rotor motor for electric chain hoist Note: The equipped machine model needs to be applied to the professional technical center. It can be used only after approval. Marking example:
a.
The model number is 1, the center height of the base is 90mm, the length of the No. 1 iron core. The lifting motor with 2 poles: motor YHHZ1901-2JB5317.3 —91 model number is 1, the center height of the base is 90mm, the length of the No. 1 core, and the number of poles is 2 poles: b.
Motor YHHZY1901-2 JB5317.3-91 core||tt ||Motive:
A2
The model number is 1. The center height of the machine base is 100mm, the length of the No. 3 iron core, the fast pole is 2 poles, the slow speed is 8 poles, the lifting motor YHHZ11003 -2/8
JB5317.3—91
Disc brake motor model representation method: YHHP
Number of slow poles
Number of fast poles||tt| |Power, W
Machine model (digital representation)
Together with rising motor (no code)
-Running motor (Y)
Chain electric hoist Note for disc brake motors: The model of the machine must be applied to the professional technical center and approved before adoption. Marking example:
a.
180
Hoisting motor with model number 1, power 200W and 4 poles:
b.
c.
d.
e.
f.
g.
h.| |tt||j.
k.
1.
m.
n.
0.
p.|| tt||q-
r.
s.
Motor model;
rated power, kw
rated speed, r/min;|| tt||Work system, load duty cycle;
Phase number;
Rated voltage, V;
Rated current, A;
Rated frequency, Hz;|| tt||Wiring method:
Insulation level;
Protection level;
Moment of inertia, kg·m\;
Static braking torque, N·m;| |tt||Weight, kg;
Production license number;
Factory number;
Factory date;
Manufacturing name.
7.3 The shaft extension of the electric motor and the assembly mating surface with the hoist body should have anti-rust and protective measures. 7.4 The packaging of the motor should ensure that under normal storage and transportation conditions, the motor will not be affected by moisture or damage due to poor packaging within 1 year from the date of shipment.
178
JB 5317.3—91
7.5 The words and signs on the outside of the packaging box should be clear and neat, and the content is as follows: Shipping station and manufacturer name; .
b Receiving station and receiving unit name;
c. Motor model and factory number;
d.
e.
The net weight of the motor and the gross weight of the box: box size, and the words "Do not turn upside down" are marked on the appropriate location outside the box. ", "moisture-proof", "center of gravity" and other words and symbols, their graphics should comply with the provisions of GB191.
7.6 motors should come with the following documents when leaving the factory: a.
Product Certificate;
b, Operation and Maintenance Instructions.
8
Quality Guarantee Period
The manufacturer shall guarantee that the motors supplied will last for 18 months from the date of use, provided that the user keeps them properly and uses them reasonably. It can work normally within 24 months from the date of shipment, otherwise the manufacturer shall repair or replace it free of charge. 179
:
A1 conical rotor motor model representation method: YHHZ
JB 5317.3—91
Appendix A
Motor model representation method||tt ||(supplement)
One number of slow poles
Number of fast poles
One core length serial number (digital representation)
-center height of the base, mm
Equipped machine model (digital representation)
Lifting motor (no code)
Running motor (Y)
Conical rotor motor for electric chain hoist Note: The equipped machine model needs to be applied to the professional technical center. It can be used only after approval. Marking example:
a.
The model number is 1, the center height of the base is 90mm, the length of the No. 1 iron core. The lifting motor with 2 poles: motor YHHZ1901-2JB5317.3 —91 model number is 1, the center height of the base is 90mm, the length of the No. 1 core, and the number of poles is 2 poles: b.
Motor YHHZY1901-2 JB5317.3-91 core||tt ||Motive:
A2
The model number is 1. The center height of the machine base is 100mm, the length of the No. 3 iron core, the fast pole is 2 poles, the slow speed is 8 poles, the lifting motor YHHZ11003 -2/8
JB5317.3—91
Disc brake motor model representation method: YHHP
Number of slow poles
Number of fast poles||tt| |Power, W
Machine model (digital representation)
Together with rising motor (no code)
-Running motor (Y)
Chain electric hoist Note for disc brake motors: The model of the machine must be applied to the professional technical center and approved before adoption. Marking example:
a.
180
Hoisting motor with model number 1, power 200W and 4 poles:
180
Hoisting motor with model number 1, power 200W and 4 poles:
180
Hoisting motor with model number 1, power 200W and 4 poles:
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