This standard specifies the technical requirements, test methods, inspection rules, quality assurance period, marking, packaging, transportation and storage requirements of ZCF series DC tachometer generators. This standard applies to ZCF series DC tachometer generators (hereinafter referred to as motors). This series of motors are closed self-cooling separately excited DC generators with commutators. Under constant excitation current, the armature voltage generated is proportional to the armature speed. JB/T 2661-1999 Technical conditions of ZCF series DC tachometer generators JB/T2661-1999 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T2661
1999-08-06
Art Dianshe
2000-01-01
Wa Xian Ji Dong
JB/T2661
This standard is a revision of JB2661-80 "Technical Conditions for ZCF Series DC Tachometer Generators". The revision refers to the basic standards and general technical conditions of micromotors. This standard is consistent with the relevant standards. This standard replaces JB2661-80 from the date of implementation. This standard is proposed and approved by the National Technical Committee for the Promotion of Micromotors Standards. Drafting unit of this standard: Boshan Motor Factory
The main drafters of this standard: Gao Shaoping, Chen Yujia, and Ma Deli. This standard is entrusted to Boshan Motor Factory for interpretation. 1
JB/T26611999
JB26611980
This standard specifies the technical requirements, test methods, inspection rules, quality assurance period, marking, packaging, transportation and storage requirements of ZCF series DC tachometer generators.
This standard is applicable to ZCF series DC tachometer generators (hereinafter referred to as motors). This series of motors are closed self-cooling separately excited DC generators with commutators. Under constant excitation current, the armature voltage generated is proportional to the armature speed. 2
Cited standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. At the time of publication of the standard, the versions shown are all valid. All standards will be revised, and all parties to this standard should explore the possibility of using the latest versions of the following standards: GB/T2423.3-[993 Basic environmental test procedures for electrical and electronic products Test Ca: Steady-state damp heat test method GB/T 7345-—1994
GB/T 148[9—1993
3 Definitions
Technical requirements for controlling micro-motors
General technical conditions for electromagnetic DC servo motors Linear error of DC tachometer generator: The difference △U (=UU) between the measured value of the input voltage U at a certain speed within the working speed range of the motor and the ideal output voltage U at the same speed to the measured value of the output voltage at the rated speed n. 4 Model naming
The model of the motor consists of the product name code, frame size, core length code, performance parameter code, dust code and other parts. ZCF
Derived code
Performance parameter code
Core length code
-Frame number
Product name code
4.1 Product name code
The product name code is represented by uppercase Chinese pinyin letters, ZCF--electromagnetic DC tachometer generator, Wa Extremely Slow 1999-08-06
2000-01-01 Small Cable
4.2 Frame number
JB/T2661
The motor frame number and the corresponding frame outer diameter shall be as specified in Table 1. Table 1 Frame size
Frame size
Frame outer diameter
4.3 Core length code
The core length code is represented by Arabic numerals "2" and "6", where "2" represents a short core and "6" represents a long core. 4.4 Performance parameter code
The performance parameter code is represented by Arabic numerals "1\", "2", "3"...·. The deep-seated code
derivation includes structural derivation and performance derivation, and the code is represented by capital Chinese pinyin letters \A", "B\, \C"...., except \I\, "O\.
5 Technical requirements
5.1, Environmental conditions for use
5.1.1 Ambient temperature: -40-+70° (ZCF1××, ZCF222 5.1.2 Humidity of the air conditioner: 90%~95%. S,1,3 Any installation position.
5.2 Working system
The motor is continuous working system (SI):
5.3 Circuit diagram
The motor circuit diagram is shown in the figure.
5.4 Rated data
The rated data of the motor should comply with the provisions of Table 2. 2||tt| |Figure 1 Circuit diagram
ZCF121
ZCF121A
ZCF221
ZCF221A
ZCF22IC
ZCF222
ZCF361
ZCF361C
Micromagnetic current
Rated data is checked in cold state
2 Output medium voltage is allowed The difference is ±5%.
5.5 Appearance and installation dimensions
Output voltage
JB/T26611999
Table 2 Rated data
Negative current
Double shaft extension
Double shaft extension
This series of motors are all shell outer circle installation structure type. Its appearance and installation dimensions should comply with the provisions of Figure 2, Table 3 and Figure 3, Table 4. AA|| tt||Figure 2 Appearance and installation dimensions of ZCF121ZCF121A Table 3 Appearance and installation dimensions
ZCF121
ZCF121A
ZCF221
ZCF22IA
ZCF22IC
ZCF222
ZCF361
ZCF361C
5,G Appearance
JB/T2661
Figure 3 ZCF2 × ×, ZCF3 × × appearance and installation dimensions Table 4 Appearance and installation dimensions
The appearance of the motor shall comply with the provisions of 4.4.1 of GB/T14819-1993. 5.7 Track clearance
The axial clearance of the motor shall comply with the provisions of Table 5.
Axial clearance
Seat number
Axial clearance
5.8 Radial runout of shaft and commutator surface
The radial runout of the shaft extension and commutator surface of the ZCF1 xx
motor shall not exceed 0.02mm5.9 Coaxiality of the mounting surface axis
The coaxiality of the outer circle of the machine base to the axis center line shall not exceed 0.15mm. 5.10 Outgoing wire mark
The wire mark of the motor winding should be indicated on the terminal board, and its mark should comply with the provisions of Table 6. D2
ZCF2 × ×, ZCF3 × ×
Outgoing wire mark
5.11 Insulation resistance
JB/T2661
Table 6 Wire mark core
Outgoing winding
Under normal test conditions, the insulation resistance between the conductive part of the motor and the casing should not be less than 50M. 5.12 Overspeed
The magnetizing winding
motor should be able to withstand 6000r/min overspeed for 2min without malfunction and harmful deformation under rated excitation and no load resistance (ZCF361 and ZCF361C overspeed 3000 r/min). 5.13 Friction torque
The static friction torque of the motor should comply with the provisions of Table 7. 7 Static friction torque
Frame number
The static friction force should not be greater than
5.14 Voltage polarity
The armature voltage polarity of ZCFI× ×
motor should comply with the provisions of Table 8. Frame number or code
ZCFI× ×
ZCF2 × ×www.bzxz.net
ZCF222
ZCF3 xx
5.15 Commutation
Rotation direction
Table 8 Voltage polarity
(from the commutator end view
clockwise
ZCE2××
Magnetic winding
Wiring tolerance
F,(+). F(-1
F,{-}. F(+)
ZCF3 × ×
Terminal polarity
S(+), S2(-)
When the motor is operating normally under rated load, slight sparks are allowed on the edge of the middle brush or on the inner part; slight burns on the surface of the middle brush and black marks on the surface of the commutator that can be wiped off with gasoline; no sparks are allowed under the middle brush during factory tests. 316 Insulation dielectric strength
The conductive part of the motor should be able to withstand an insulation dielectric strength test of 50Hz, actual 1000V sinusoidal waveform voltage for 1min without being broken down. When repeating this test, the voltage is 100V. 5.17 Linearity error
When the speed of the motor changes from the rated value to zero under rated excitation current and rated load output resistance, the armature voltage changes proportionally with the speed. The minimum linearity error should be less than 1% (2CF222, not more than 3%). The calculation formula is as follows: x100%
In which the ideal output voltage value U; is the voltage value obtained on the straight line (Figure 4) passing through the zero point and the measured value of the output voltage at rated speed U, that is:
nUu(v)
5.18 Output voltage asymmetry
JB/T2661
Figure 1 Characteristic curve
The output voltage asymmetry of the motor should be less than 1% (ZCF222, not more than 2%). The output voltage asymmetry p is calculated according to the following formulaAU
In which: UUu\()
In: Ut,U\-
- corresponds to the measured voltage value when rotating in the forward and reverse directions at the same speed. This series of motors only checks the asymmetry at rated speed. 5.19 Ripple coefficient
ZCF222 The effective value of the alternating component in the output voltage should not exceed 5% of its DC component 5.20 Temperature rise
When the motor works at rated transfer, rated voltage and rated load resistance, the temperature rise of its winding should not exceed 55K. 5.21 Vibration
The motor should be able to withstand a vibration test with an amplitude of 1mm and a frequency of 10Hz for 2b. During the test, the motor should be able to work forward. ZCF221C should be able to withstand a vibration test with an amplitude of 2.21mm and a frequency of 20Hz for 30min. After the test, conduct an appearance inspection. Loose fasteners and deformation of parts are not allowed. Check the rated data, linear error, and output voltage asymmetry of the motor to meet the requirements of 5.4, 5.17, and 5.18. 5.22 Shock
The motor should be able to withstand an impact test with an acceleration of 70m/s and a pulse repetition frequency of 80 times/min for 30min. The motor shall not be powered during the test.
After the test, conduct an appearance inspection. Loose fasteners and deformation of parts are not allowed. Check the rated data, linear error and output electrical asymmetry of the motor. They should comply with the provisions of 5.4, 5.17 and 5.18. 5.23 Low temperature
JB/T26611999
When the motor is at a temperature of -40 +2r., the rated data, linear error and asymmetry shall comply with the provisions of 5.4, 5.17 and 5.18, but the output voltage tolerance of the motor is % at this time.
5.24 High temperature
When the motor is at a temperature of 70)±3℃ (50+2℃ for 7CF1×× and 7CF222), the rated data, linear error and asymmetry shall comply with the provisions of 5.4, 5.17.5.18. At this time, the output voltage tolerance of the motor should be %, 5.25 steady damp heat
The motor should be able to withstand a steady damp heat test with a severity level of 40±2% and a relative humidity of 90%~95% for 4 days. After the test, the insulation resistance measured in the box shall not be less than "M!. There shall be no casting corrosion on the metal surface, no bubbles on the surface paint layer, no lower brush in the brush box, and no stickiness between the brush and the commutator surface. 5.26 Weight
The weight of the motor shall not exceed the requirements of Table 2.
5.27 Life
The motor shall be able to work for a long time under rated load. Without any maintenance, the motor shall be able to continuously perform 100[1 tests at rated load and rated speed. After the test, check that its output voltage is allowed to differ by 2.5% from the voltage measured before the test (with the voltage before the test as the base value). Its linear error and asymmetry of the output voltage shall comply with the requirements of 5.17 and 5.18. 6 Test method
6.1 Test conditions
6.1.1 Weather conditions
According to 5.1.1, 5.1.2, 5.1 of (i[3/I 7345-1994) 3. 6.1.2 Test instrument accuracy
Test instrument and meter accuracy shall not be lower than 0.5 level. 6.1.3 Machine installation
Unless otherwise specified, the motor shall be installed horizontally during the test. 6.1.4 Test power supply
DC power supply with ripple factor not greater than 3%. 6.2 Appearance
Inspect the motor appearance and it shall meet the requirements of 5.6. 6.3 Appearance and installation dimensions
According to the method specified in 5.3.2 of GB/T14819-1993. Its value shall meet the requirements of 5.5. 6.4 Axial thrust
According to the method specified in 5.3.3 of GB/T14819-1993. Its value shall meet the requirements of 5.7, and the axial thrust shall be in accordance with the provisions of Table 9. Table 9 Axial thrust
Machine seat number
Axial thrust
ZCFI× ×
6.5 Radial runout of shaft extension and commutator surface ZCF2××
ZC:F3 × ×
The motor housing is fixed. When the shaft is slowly rotated, the micrometer is used to measure the three-point runout at the shaft and commutator assembly parts. The maximum value should meet the requirements of 5.8.
6.6 Coaxiality of assembly interface
JB/T2661
According to the method specified in 5.7 of GB/T7345-1994, the value should meet the requirements of 5.9. 6.7 Outgoing wire marking
The incoming wire marking of the daily inspected motor should meet the requirements of 5.10. 6.8 Insulation resistance
Measured with a 500V megohmmeter, the measurement result should meet the requirements of 5.11. 6.9 Overspeed
Drive the motor to 6000 at the rated excitation current. /min (3000 r/min for ZCF361 and ZCF361C) and maintain for 2min. The result shall meet the requirements of 5.12.
6.10 Static friction torque
Adjust the brush pressure according to the drawing, and use it to rotate for 10 seconds. Then install the steel inspection needle that meets the requirements of Table 10 in Figure 5 on the motor shaft extension, make the needle rod straight down, and slowly rotate the motor left and right at a speed of 23min. At this time, the deviation of the meter rod from the vertical position should not exceed 90°, that is, it meets the requirements of 5.13. Figure 5 Check the static friction torque with a check gauge. Check the static friction torque with a check gauge. Size. Machine frame number. ZCF2*×. ZCF3xx. Check gauge size. 611 Depends on the determined data, polarity of the output voltage, asymmetry, commutation and wrinkle coefficient (only for 2ZCF222) D. Use a test device with a steady speed transmission device and a compensation method to measure the voltage to carry out the test. The error of the test device shall not exceed 0.5%. The polarity of the motor excitation winding terminal and the direction of rotation of the motor shall be in accordance with the provisions of Article 8. With a standard medium resistor or variable resistor as the load, at the rated speed and fixed excitation conditions, measure the armature voltage in both the forward and reverse directions, check its polarity, and observe the commutation. The results shall meet the requirements of 5.4, 5.14, 5.18, 5.15, and 5.19. 8
6.12 Linearity error
JB/T26611999
The test shall be carried out with the same transmission and test device as 6.11. The motor shall be under rated excitation and forward and reverse directions, and the speed shall be within the rated to zero range. Take 3-5 points at approximately equal intervals (rounded to 10 digits) and measure its output voltage. The result shall meet the requirements of 5.17. The maximum error value measured in both directions shall be taken as the linearity error of the motor. It is allowed to use other test devices that ensure the accuracy for inspection. 6.13 Insulation Dielectric Strength
Test power supply capacity shall not be less than 0.5kVA: Test voltage shall start from no more than half of the full value of the test voltage specified in 5.1G, and then gradually increase in sections. The growth rate of each section shall not exceed 5% of the test voltage until the full value of the test voltage is reached. The time from the half-value of the test voltage to the full value shall be no less than 10s. The full value test voltage shall be maintained for 1min, and then quickly dropped to less than 50% of the full value before disconnecting the power supply. The result shall meet the requirements of 5.16. 6.14 Temperature Test
Fix the motor on the temperature rise test bracket shown in Figure 6 and Table 11. The bracket shall be placed on the aluminum plate of the size shown in Table 12. The protective tape shall be tightly covered. The motor shall be operated continuously according to the provisions of 5.20 until the surface temperature rise of the motor does not change by more than 0.5% in 0.5h. The temperature rise of the electrode winding and the exciting winding shall be measured by the resistance method. The value shall meet the requirements of 5.20. The temperature rise of the copper wire winding is △t [K] determined by the following formula: Rz -RL(235 +ti)+ti -to
, where: R,
is the winding resistance at the end of the test;
- the winding resistance at the time of cooling, industry:
measure R,Winding temperature. "C:
-Ambient temperature at the end of the test, ℃.
Movement: The system resistance R should be obtained by extending the cooling curve [Relationship between winding resistance and measurement interval] and inserting it at the moment of power failure. Pin plate Q235A-C—1. 5
Corrected aluminum ZE102
Figure 6 Warm knife test stand
Machine frame number
7CF1 × ×
ZCF2 ×
ZCF3 × ×
6.15 Vibration
Machine frame number
Aluminum plate ruler!
JB/T2661
Temperature rise test stand size
Table 12 Aluminum plate size
ZCF1 × ×. ZCF2× ×
200 × 200 × 10
ZCF3 × ×
200 × 300 ×1n
Fix the motor in horizontal position (vertical installation for ZCF361) on the vibration test bench 1:, and conduct vibration test according to 5.21. The result shall comply with 5,21. Requirements,
6.16 Impact
The motor is fixed at the impact test price 1:, and the impact test is carried out according to the provisions of 5.22. The result should meet the requirements of 5.22. 6.17 High temperature
The test is carried out in a high temperature box. During the test, the metal bracket and the bottom plate size of the fixed motor are smaller than the provisions of 6.14, and the motor protection belt should be tightly covered. When the temperature in the box reaches 70±3T (ZCFI××, ZCF222 is 50+2%), keep warm for 2h, and then check the rated data in the box. The asymmetry and linear error should meet the requirements of 5.24..6.18 Low temperature
The test is carried out in a low temperature box. The volume of the low temperature box should be at least three times the total volume of the machine under test at the same time. During the test, the motor protection belt should be tightly covered. When the temperature in the box reaches -40±2℃, keep it for 21 and then turn on the test circuit. Check the rated data in the box. The asymmetry and linear error, the results should meet the requirements of 5.24. Meet the requirements of 5.23. 6.19 Constant heat
The motor shaft and mounting mating surface are coated with anti-rust grease, and the constant damp heat test is carried out according to the provisions of GB/T2423.3. The severity is in accordance with the provisions of 5.25, and the result should meet the requirements of 5.25. 6.20 Weight
The test is carried out according to the method specified in 5.27 of GB/I14819-1993, and the result should meet the requirements of 5.26. 6.21 Before the test, the brush pressure of the motor is adjusted to the pressure range specified in the drawing, and the inspection is carried out according to the provisions of 5.4, 5.17, and 5.18. The motor is continuously operated for 100 hours at rated load and rated speed, and it should be reversed once every 8 hours. After 4 hours, it should be reversed once every 5 minutes: the motor in the test should meet the requirements of 5.27. 7 Inspection rules
7.1 Inspection classification
The inspection of motors is divided into "test" inspection and type inspection. 7.2 Factory Inspection
7.2.1 The inspection items shall be in accordance with the provisions of Table 13. 10
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