CN201518446U - High-power three-phase low-pressure asynchronous motor - Google Patents
High-power three-phase low-pressure asynchronous motor Download PDFInfo
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- CN201518446U CN201518446U CN2009202353515U CN200920235351U CN201518446U CN 201518446 U CN201518446 U CN 201518446U CN 2009202353515 U CN2009202353515 U CN 2009202353515U CN 200920235351 U CN200920235351 U CN 200920235351U CN 201518446 U CN201518446 U CN 201518446U
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Abstract
The utility model relates to a high-power three-phase low-pressure asynchronous motor. Based on the technical scheme provided by the high-power three-phase low-pressure asynchronous motor, a front end cover and a rear end cover are installed on two ends of a frame; a stator is installed in the frame and fixed on the front end cover and the rear end cover; the stator is connected with a junction box; a rotor is installed in the frame; the front end and the rear end of the rotor are respectively installed on the front end cover and the rear end cover through a front bearing and a rear bearing; the front bearing and the rear bearing are respectively fixed with a shaft retainer ring through a bearing outer lid, a bearing inner lid; an outer fan is installed at the rear tail end of the rotor and fixed through the shaft retainer ring; an outer fan cover is fixed on the rear end cover; and a key is arranged in a key slot formed at the front part of the rotor. The high-power three-phase low-pressure asynchronous motor is characterized in that a stator punching sheet is made of silicon steel; a stator winding is made of high-intensity polyester modified enameled round copper wires in a double-layered random lap winding manner, and the end part of the stator winding is wrapped by epoxy glass fabric tapes in a winding manner. The high-power three-phase low-pressure asynchronous motor has the advantages of reasonable stator winding, good safety, concept structure of the complete asynchronous motor, good heat dissipation performance, low running noise, high strength, safe and reliable running and smooth running.
Description
Technical field
The utility model belongs to technical field of motors, specifically relates to a kind of low voltage high-power threephase asynchronous motor.
Background technology
Y2 series (IP54) threephase asynchronous (height of center H63～355) has unique outward appearance and reaches characteristics such as obviously energy-conservation.Along with the internationalization that motor is made, the low-pressure high-power motor progressively moves to maturity in the exploitation and the production of China, plays an important role in numerous industrial circles such as mine, oil, chemical industry, electric power and plumbing.Such motor need change the power that under high pressure could realize in the past under the low pressure situation and can realize equally.In the prior art, there is following defective in such motor: (1) motor internal does not have fan, adopts single wind path structure, and the motor internal heat-sinking capability is poor, temperature rise, and insulation life is short; (2) bearing arrangement is single, and the running noises height.Therefore, restricted the use of such low voltage high-power threephase asynchronous motor.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of stator winding reasonable, and fail safe is good, complete machine structure is ingenious, perfect heat-dissipating, and running noises is low, the intensity height, safe and reliable to operation and move low voltage high-power threephase asynchronous motor smoothly.
According to the technical scheme that the utility model provides, at the two ends of support front end housing and rear end cap are installed, stator is installed in the support, is fixed on front end housing, the rear end cap; Stator connects terminal box; Rotor is installed in the support, and its rear and front end is installed on front end housing, the rear end cap by fore bearing, rear bearing respectively, and fore bearing and rear bearing are fixed by bearing end cover, internal bearing cover and shaft block ring respectively; External fan is installed in the rearward end of rotor, fixes by shaft block ring; Outer fan housing is fixed on the rear end cap, and external fan is covered; Key is contained in the keyway of rotor front, is used for outputting power; It is characterized in that: described stator punching adopts silicon steel to make, and stator winding adopts high-strength polyester modification enamel insulated round copper wire to make with the diffusing embedding form of double-deck lap wound, and winding overhang is wrapped with epoxy tape of glass fibre tape.
For the motor on power 〉=560KW, its stator punching adopts DW470-50 silicon steel to make; The stator punching of all the other motor adopts DR420 silicon steel to make.
As further improvement of the utility model, on the described rotor internal fan is housed, internal fan is positioned at base inner, fixes by shaft block ring, circulation cooling air duct in the air duct on internal fan and rotor ventilation groove and the support constitutes.
As further improvement of the utility model, fan shroud is equipped with at the two ends of described stator and rotor mating surface.
As further improvement of the utility model, when motor was two-pole machine, the fore bearing of drive end, the rear bearing of anti-drive end all adopted ball bearing; When motor was four utmost points and above motor, as adopting the shaft coupling transmission, the fore bearing of drive end, the rear bearing of anti-drive end all adopted ball bearing; As adopting belt transmission, the fore bearing of drive end adopts cylinder roller bearing; The rear bearing of anti-drive end still adopts ball bearing.
As further improvement of the utility model, described bearing end cover is provided with oil fuel tube, and internal bearing cover is provided with the oil storage outage; Between described shaft block ring and the bearing disc is housed.
As further improvement of the utility model, described support is the HT200 pig machine base, and its surface is provided with cooling water pipe.
The utility model compared with prior art, advantage is:
(1) stator winding is reasonable, and winding insulation is the F class F insulation, and temperature rise is the B level, and wrapped epoxy tape of glass fibre tape at winding overhang can prevent effectively that the electromagnetic force vibration from causing that winding damages;
(2) circulation cooling air duct in the air duct on the internal fan of setting up and rotor ventilation groove and the support constitutes, make stator winding end and bearing obtain cooling, reduced thermal stress, increased the motor reliability of operation, compare the temperature rise 10～15K that descended with the motor of traditional structure;
(3) fan shroud is equipped with at the two ends of stator and rotor mating surface, has strengthened the heat-sinking capability of motor, has improved motor oscillating and noise objective;
(4) bearing arrangement has both been strengthened the radially bearing capacity of bearing according to rationally adjusting without situation, preferably resolves the problem that motor bears axial force again, has improved the motor reliability of operation greatly;
(5) bearing end cover is provided with oil fuel tube, and internal bearing cover is provided with the oil storage outage, between shaft block ring and the bearing disc is housed, and these structures have guaranteed the operational efficiency and the running smoothness of equipment;
(6) HT200 pig machine base intensity is higher, and its surface is provided with cooling water pipe, and heat is taken away rapidly, and heat load is generally controlled adjustable high-level 2 times, has further improved heat dispersion.
Description of drawings
Fig. 1 is a structure of the present utility model office cutaway view.
Fig. 2 is the enlarged diagram of A portion among Fig. 1.
Fig. 3 is the left view of Fig. 1.
Description of reference numerals: 1-support, 2-shaft block ring, 3-disc, 4-bearing end cover, 5-fore bearing, 6-internal bearing cover, 7-oil fuel tube, 8-front end housing, 9-fan shroud, 10-stator, 11-rotor, 12-internal fan, 13-rear end cap, 14-rear bearing, 15-external fan, the outer fan housing of 16-, 17-terminal box, 18-key, 19-cooling water pipe, 20-oil storage outage.
Embodiment
Shown in Fig. 1～3, by bolt part front end housing 8 and rear end cap 13 are installed at the two ends of support 1, stator 10, rotor 11 are installed in the support 1, and stator 10 is fixed on front end housing 8, the rear end cap 13 by bolt part; Stator 10 is connected with terminal box 17 by bolt; Rotor 11 is installed in the support 1, and its rear and front end is installed on front end housing 8, the rear end cap 13 by fore bearing 5, rear bearing 14 respectively, and fore bearing 5 and rear bearing 14 are fixing by bearing end cover 4, internal bearing cover 6 and shaft block ring 2 respectively; Internal fan 12 and external fan 15 are housed on the rotor 11, and internal fan 12 is positioned at support 1 inside, adopts hot cover process to install, and is fixing by shaft block ring 2; External fan 15 is installed in the rearward end of rotor 11, adopts hot cover process to install, and is fixing by shaft block ring 2; Outer fan housing 16 covers external fan 16 by being bolted on the rear end cap 13; Key 17 is contained in the keyway of rotor 11 fronts, is used for outputting power.
Described stator punching adopts silicon steel to make, and is overrided to form with traditional cramp form, and for the motor on power 〉=560KW, its stator punching adopts DW470-50 silicon steel to make; The stator punching of all the other motor adopts DR420 silicon steel to make.Stator winding adopts high-strength polyester modification enamel insulated round copper wire to make with the diffusing embedding form of double-deck lap wound, and winding insulation is the F class F insulation, and temperature rise is the B level; Winding overhang is wrapped with epoxy tape of glass fibre tape, in case the electromagnetic force vibration causes that winding damages.
As shown in Figure 2, bearing end cover 4 is provided with oil fuel tube 7, and internal bearing cover 6 is provided with oil storage hole outage 20, and disc 3 is housed between shaft block ring 2 and the bearing, makes the operation of filling lubricating oil need not to shut down, and has improved equipment operating efficiency and running smoothness.
When motor was two pole motors, the fore bearing of drive end, the rear bearing of anti-drive end all adopted ball bearing.When motor is four utmost points and above motor, can select the bearing arrangement form flexibly for use according to the difference of the kind of drive, as adopting the shaft coupling transmission, the fore bearing of drive end, the rear bearing of anti-drive end all can adopt ball bearing; As adopting belt transmission, the fore bearing of drive end adopts cylinder roller bearing; The rear bearing of anti-drive end adopts ball bearing.
As shown in Figure 1, described support 1 is the HT200 pig machine base, the intensity height; The support surface is provided with cooling water pipe 19, and heat is taken away rapidly, and heat load is generally controlled adjustable high-level 2 times.
Operation principle of the present utility model is as follows:
When the stator 10 of threephase asynchronous is received the positive sequence balanced three-phase voltage, produce rotating magnetic field in the stator winding, rotating magnetic field " cutting " rotor winding, make and produce three-phase induction electromotive force and three-phase current in the rotor 11, Interaction Law of Electric Current produces electromagnetic torque in air-gap field and the rotor 11, and rotor 11 is rotated, output shaft power, under the constant situation of output shaft power, change material, length and the internal electromagnetic data of stator 10, rotor 11, satisfy the maximum power requirement.
Claims (9)
1. a low voltage high-power threephase asynchronous motor is installed front end housing (8) and rear end cap (13) at the two ends of support (1); Stator (10) is installed in the support (1), and is fixed on front end housing (8) and the rear end cap (13); Stator (10) utilizes lead to be connected with terminal box (17); Rotor (11) is installed in the support (1), the rear and front end of rotor (11) utilizes fore bearing (5) and rear bearing (14) to be installed on front end housing (8) and the rear end cap (13) respectively, and fore bearing (5) and rear bearing (14) utilize bearing end cover (4), internal bearing cover (6) and shaft block ring (2) fixing respectively; External fan (15) is installed in the rearward end of rotor (11), and is fixing by shaft block ring (2); Outer fan housing (16) is fixed on the rear end cap (13), and external fan (16) is covered; Key (17) is contained in the keyway of rotor (11) front, is used for outputting power; It is characterized in that described stator punching adopts silicon steel to make, stator winding adopts high-strength polyester modification enamel insulated round copper wire to make with the diffusing embedding form of double-deck lap wound, and winding overhang twines with epoxy tape of glass fibre tape.
2. low voltage high-power threephase asynchronous motor according to claim 1, its feature are that also for the motor on power 〉=560KW, its stator punching adopts DW470-50 silicon steel to make; The stator punching of all the other motor adopts DR420 silicon steel to make.
3. low voltage high-power threephase asynchronous motor according to claim 1, its feature also is, internal fan (12) is housed on the described rotor (11), internal fan (12) is positioned at the inside of support (1), fixing by shaft block ring (2), circulation cooling air duct in the air duct on internal fan (12) and rotor ventilation groove and the support (1) constitutes.
4. low voltage high-power threephase asynchronous motor according to claim 1, its feature are that also described stator (10) is equipped with fan shroud (9) with the two ends of rotor (11) mating surface.
5. low voltage high-power threephase asynchronous motor according to claim 1, its feature are that also when motor was two pole motors, the fore bearing of drive end (5) all adopted ball bearing with the rear bearing (14) of anti-drive end; When motor was four utmost points and above motor, as adopting the shaft coupling transmission, the fore bearing of drive end (5) all adopted ball bearing with the rear bearing (14) of anti-drive end; As adopting belt transmission, the fore bearing of drive end (5) adopts cylinder roller bearing; The rear bearing of anti-drive end (14) adopts ball bearing.
6. low voltage high-power threephase asynchronous motor according to claim 1, its feature are that also described bearing end cover (4) is provided with oil fuel tube (7), and internal bearing cover (6) is provided with oil storage outage (20).
7. low voltage high-power threephase asynchronous motor according to claim 1, its feature also are, disc (3) is housed between described shaft block ring (2) and the bearing.
8. low voltage high-power threephase asynchronous motor according to claim 1, its feature are that also the surface of described support (1) is provided with cooling water pipe (19).
9. low voltage high-power threephase asynchronous motor according to claim 1, its feature are that also described support (1) is the HT200 pig machine base, and the surface of support (1) is provided with cooling water pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202353515U CN201518446U (en) | 2009-09-24 | 2009-09-24 | High-power three-phase low-pressure asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202353515U CN201518446U (en) | 2009-09-24 | 2009-09-24 | High-power three-phase low-pressure asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201518446U true CN201518446U (en) | 2010-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202353515U Expired - Fee Related CN201518446U (en) | 2009-09-24 | 2009-09-24 | High-power three-phase low-pressure asynchronous motor |
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| Country | Link |
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| CN (1) | CN201518446U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106059176A (en) * | 2016-08-12 | 2016-10-26 | 中车永济电机有限公司 | Full-laminated motor engine base with double-circulation air channel |
| CN106816974A (en) * | 2017-02-27 | 2017-06-09 | 百恒石油装备有限公司 | A kind of slip frequency-conversion and speed-regulation motor high for driving beam pumping unit |
-
2009
- 2009-09-24 CN CN2009202353515U patent/CN201518446U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106059176A (en) * | 2016-08-12 | 2016-10-26 | 中车永济电机有限公司 | Full-laminated motor engine base with double-circulation air channel |
| CN106816974A (en) * | 2017-02-27 | 2017-06-09 | 百恒石油装备有限公司 | A kind of slip frequency-conversion and speed-regulation motor high for driving beam pumping unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: WUXI SEC ELECTRIC MACHINERY CO., LTD. Free format text: FORMER NAME: WUXI HEC ELECTRIC MACHINERY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 214131, No. 2, Da Tong Road, Hua Zhen Town, Binhu District, Jiangsu, Wuxi Patentee after: Wuxi Zhong Dian Motor Co.,Ltd. Address before: 214131, No. 2, Da Tong Road, Hua Zhen Town, Binhu District, Jiangsu, Wuxi Patentee before: SEC Electric Machinery Co.,Ltd. |
|
| CP03 | Change of name, title or address |
Address after: 214131, No. 777 Gao Lang Dong Road, Binhu District, Jiangsu, Wuxi Patentee after: Sec Electric Machinery Co.,Ltd. Address before: 214131, No. 2, Da Tong Road, Hua Zhen Town, Binhu District, Jiangsu, Wuxi Patentee before: Wuxi Zhong Dian Motor Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100630 Termination date: 20170924 |