This standard specifies the type, basic parameters and dimensions, technical requirements, inspection rules, marking and packaging requirements of YEZX series conical rotor brake three-phase asynchronous motors for cranes. JB/T 7562-2002 Technical conditions for YEZX series conical rotor brake three-phase asynchronous motors for cranes JB/T7562-2002 Standard download decompression password: www.bzxz.net

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2002-07- 16 4
JB/T 7562—2002
JB756291994
2002-12-01
JB/T7562—2002
This standard replaces JB7562-1994 "Technical conditions for YEZX series conical rotor brake three-phase asynchronous motors for hoisting". The main changes of this standard compared with JB7562-1994 are as follows: The referenced documents are revised to indicate the date and the latest version is quoted: - Added the rules for rounding off values;
- Canceled the description on the model.
Non-standard frame numbers 125 and 140 have been cancelled. Appendix A, Appendix B and Appendix C of this standard are normative appendices. Appendix D is an informative appendix. : This standard is proposed by the China Machinery Industry Federation. This standard is under the jurisdiction of the National Rotating Electric Machine Standardization Technical Committee Hoisting Metallurgy and Shielded Motor Standardization Sub-Technical Committee (SAC/TC26/SC4).
The drafting units of this standard are: Jiamusi Explosion-proof Motor Research Institute, Jiamusi Electric Motor Co., Ltd. ：The main drafters of this standard are Yu Shuhua, Liu Weixing, Yang Xuemin, and Fu Huaibo. This standard was first issued in December 1994.
1 Scope
Technical conditions for YEZX series three-phase asynchronous motors with conical rotor brake for hoisting
JB/T7562—2002
This standard specifies the type, basic parameters and dimensions, technical requirements, inspection rules, marking and packaging requirements of YEZX series three-phase asynchronous motors with conical rotor brake for hoisting (hereinafter referred to as motors). This standard is applicable to single-speed and double-speed three-phase asynchronous motors with conical rotors that are required to be operated with brakes for various hoisting machinery and similar equipment. All series of motors derived from this series of motors can also be used for reference. 2 Normative references
The clauses in the following documents become the clauses of this standard through reference in this standard. For all referenced documents with dates, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, parties that reach an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For all undated referenced documents, the latest versions are applicable to this standard. GB/T191-2000 Packaging, storage and transportation pictorial symbols (eqvISO780:1997) GB755-2000 Rotating motor ratings and performance (idtEC60034-1:1996) GB/T997-1981 Motor structure and installation type code (negIEC60034-7:1972) GB/T1032-1985 Three-phase asynchronous motor test method GB/T1096-1979 Ordinary flat key type size GB/T1993-1993 Rotating motor cooling method GB/T2423.4-1993 Basic environmental test procedures for electrical and electronic products Test Db: Alternating damp heat test method (eqVEC60068-2-30:1980
Rotating motor Machine dimensions and output power levels Part 1: Frame size 56 ~ 400 and flange number 55 ~ 1080 GB/T4772.1-1999 blue
(idtIEC60072-1:1991)
GB/T4942.1-2001 Rotating electrical machine enclosure protection classification (IP code) (idtIEC60034-5:1991) GB10068-2000 Mechanical vibration of motors with a shaft center height of 56mm and above Vibration measurement, evaluation and limits (idtIEC60034-14:1996)
GB10069.3--1988 Rotating electrical machine noise determination method and limit noise limit (neqEC60034-9) GB147 11—1993 General safety requirements for small and medium-sized rotating electrical machines (neqIEC60034-1) JB/T9615.1—2000 Test methods for insulation between turns of scattered windings of AC low-voltage motors JB/T9615.2--2000 Test limits for insulation between scattered windings of AC low-voltage motors 3 Types, basic parameters and dimensions
3.1: Number of motor poles: Single-speed motor: 2 poles and 4 poles; Double-speed motor: 4/2, 8/2, 12/2, 12/4 poles.
3.2 The protection level of the motor housing is IP54, and the protection level of the brake device: vertical is IP20, horizontal is IP22 (see GB/T4942.1—2001).
3.3 Motor The cooling method is IC411 (see GB/T1993-1993). 3.4 The structure and installation method of the motor are IMB3, IMB5, IMB6, IMB7, IMB8, IMV1, IMV3, IMV5, IMV6, IMV14, IMV18, IMV19 (see GB/T997-1981). 1
JB/T7562--2002
3.5 The motor's standard working system is S4, and the equivalent number of starts is 240 times/h and 120 times/h: the standard load duration rate of the single-speed motor is 40% and the standard load duration rate of the double-speed motor is 40%/40% and 20%/40%. 3.6 The rated voltage of the motor is 380V and the rated frequency is 50Hz. The single-speed stator winding is Y-connected, and the double-speed stator winding is Y/Y-connected.
3.7 The corresponding relationship between the motor frame number and the synchronous speed and power during the reference working system shall comply with the provisions of Table 1 Table 1
Reference working system
240 times/m
3 Motor dimensions and tolerances
S440%/40%
(240 times/h) [(240 times/m)
Synchronous speed
1500/3000
750/3000
$420%/ 40%
(120/h), (240 times/h)
500/3000
500/1500
0.08/0.26
3.8.1 The installation dimensions and tolerances of the motor shall comply with the provisions of Table 2 and Table 4 (see GB/T4772.1-1999), and the overall dimensions shall not exceed the provisions of Table 2 to Table 4: When the motor is used in conjunction with a plug-in reducer, its installation dimensions and overall dimensions shall be negotiated between the user and the manufacturer. The dimensions and tolerances of the motor shaft extension key shall comply with the provisions of Table 5 (see GB/T1096-1979). 3.8.2
The radial runout tolerance at half the motor shaft extension length shall comply with the provisions of Table 6. 3.8.3
The radial runout tolerance of the flange stop to the motor axis and the end runout tolerance of the flange mating surface to the motor axis shall not exceed the provisions of Table 7.
3.8.5 The parallelism tolerance of the motor axis to the foot support plane shall not exceed 0.5mm. 3.8.6 The flatness tolerance of the motor foot support plane shall not exceed the provisions of Table 8. 3.8.7
The symmetry tolerance of the motor shaft extension key shall not exceed the provisions of Table 9. 4 Technical requirements
The motor shall comply with 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 when used under the following conditions. The altitude shall not exceed 1000m. If the motor is specified to be used at an altitude exceeding 1000m, it shall be handled in accordance with the provisions of GB755-2000. 4.2.1
4.2.2 The maximum ambient air temperature varies with the season, but shall not exceed 40℃; the minimum ambient air temperature is -15℃. If the motor is specified to be used in an ambient air temperature higher or lower than the above provisions, it shall be handled in accordance with the provisions of GB755-2000. 4.2.3 The average maximum relative humidity of the wettest month is 90%, and the average minimum temperature of the month is not higher than 25℃. 4.2.4 Indoor and outdoor use.
4.2.5 Frequent starting, braking (electrical or mechanical) and reversal according to the provisions of different working systems. 4.2.6 Frequent mechanical vibration and shock.
BasicBasic
Dimensions
Basic:
is the width of the oblong hole.
The motor has no hanging ring,
GB1451985(2)
TRunning position
@Braking position slip
Motor structure and installation type IMB3, IMB6, IMB7, IMIB8, IMV5, IMV6 Figure 1
Position degree
ACAD|HD
140202
220298
243284
Unit: tmm
JB/T7562--2002
FF16524
P size is the maximum limit size
R is the distance from the flange mating surface to the shaft extension shoulder. The motor has no hanging ring.
GB1451985
① Farewell position
@Scraping pipe
Figure 2 Motor structure and installation type IMB5, IMV1, IMV3 Table 3
Basic limit Basic
165130
Basic limit
Position degree
Unit: mm
Outline dimension
140132140°
158141158
178151:78
JB/T7562-2002
71AFT1 00
GB145-1985
①Operating position
Braking position
Figure 3Motor structure and installation typeIMB14, IMV18, IMV19Table 4
Installation dimensions and tolerances
BasicBasic
Dimensions
Position
Unit: mm
Overall dimensions
2140140g
C type
JB/T7562
Basic limits
P dimension is the maximum limit dimension.
R is the distance from the flange mating surface to the shaft shoulder. There is no flange during manufacturing! The motor is not suspended
Table 4 (continued)
and tolerance
Installation dimensions
Basic limits
Basic limits
Limit position
Overall dimensions
151178178°
176196
188220
JB/T7562—
Extension diameter D
Shaft extension diameter D
>18~30
>30~50
Flange stop diameter
>95~230| |tt||>230~450
Maximum dimension of the distance from the outer edge of the foot (AB or BB)>100~160
>160~250
>250~400
Keyway width F
JB/T7562—2002
Unit: mm
Unit: mm
Radial runout tolerance
Unit: mm
Radial runout tolerance
Unit: mm
Flatness tolerance
Unit: mm
Symmetry tolerance
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