CN101938180A - Variable-frequency three-phase asynchronous electric motor - Google Patents
Variable-frequency three-phase asynchronous electric motor Download PDFInfo
- Publication number
- CN101938180A CN101938180A CN2009101813520A CN200910181352A CN101938180A CN 101938180 A CN101938180 A CN 101938180A CN 2009101813520 A CN2009101813520 A CN 2009101813520A CN 200910181352 A CN200910181352 A CN 200910181352A CN 101938180 A CN101938180 A CN 101938180A
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- China
- Prior art keywords
- end cap
- electric motor
- left end
- end cover
- right end
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Abstract
The invention relates to an electric motor, in particular to a variable-frequency three-phase asynchronous electric motor which is mainly used for driving equipment in a speed control system. The variable-frequency three-phase asynchronous electric motor comprises an electric motor body, a left end cover, a right end cover and a transmission key shaft, wherein a junction box is arranged on the electric motor body; a stator and a rotor which are matched with each other are arranged inside the electric motor body, and are in circuit connection with the junction box by transmitting wires; the left end of the transmission key shaft is erected rotationally in an installation hole on the left end cover by a left bearing; the right end of the transmission key shaft is erected rotationally in an installation hole on the right end cover by a right bearing; the peripheral wall of the installation hole on the left end cover is provided with a waveform spring piece which is sleeved outside the transmission key shaft; a sealing ring is sleeved between the peripheral wall of the installation hole on the left end cover and the outer surface of the transmission key shaft; a retainer ring for shaft is sleeved on the transmission key shaft on the right side of the right bearing; and a rotary flexible retainer ring for hole is embedded in the peripheral wall of the installation hole on the right end cover on the left side of the right bearing. The variable-frequency three-phase asynchronous electric motor has the advantages of good cooling effect, effective prolonging of service life, convenient disassembly and assembly and the like.
Description
Technical field
The present invention relates to a kind of motor, especially a kind of frequency conversion threephase asynchronous that drives equipment in the governing system that is mainly used in.
Background technology
Along with the development of power electronic technology, the ac variable frequency speed regulation motor has obtained extensive use.But for normal asynchronous, the performance parameter of mainly considering during Electromagnetic Design is overload capacity, starting performance, efficient and power factor, during the common electric machine design is according to constant frequency and constant voltage, can not adapt to the requirement of frequency control, influence the change of current performance and the dynamic indicator of system undoubtedly, limited electric machine speed regulation scope and overload capacity, and the adjusting function of whole system is not reached unanimity.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of good cooling results is provided, effectively prolongs the motor life-span, operates steadily, the frequency conversion threephase asynchronous of easy accessibility.
According to technical scheme provided by the invention, described frequency conversion threephase asynchronous, comprise the motor body, left end cap, right end cap and driving key axle, on the motor body terminal box is installed, be provided with the stator and the rotor of cooperation in the motor body, stator is connected with the terminal box circuit by transfer wire with rotor, the left end of driving key axle is located in the installing hole of left end cap by the left bearing rotating turret, the right-hand member of driving key axle is located in the installing hole of right end cap by the right bearing rotating turret, the installing hole perisporium of left end cap is provided with and is enclosed within the outer wavy spring sheet of driving key axle, be with sealing ring between the installing hole perisporium of left end cap and the driving key axle outer surface, be with shaft block ring on the driving key axle on right bearing right side, the right end cap installing hole perisporium in right bearing left side is embedded with the circlip for hole that ring changes.
Described right end cap is provided with independently-powered blower fan, is provided with the protective cover that blower fan is covered on right end cap.
The present invention has good cooling results, effectively prolongs advantages such as motor life-span and easy accessibility.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
The invention will be further described below in conjunction with concrete drawings and Examples.
As shown in the figure: the present invention mainly is made of left bearing 1, wavy spring sheet 2, left end cap 3, terminal box 4, stator 5, rotor 6, motor body 7, protective cover 8, sealing ring 9, right bearing 10, driving key axle 11, circlip for hole 12, right end cap 13, shaft block ring 14 and blower fan 15 etc.
This frequency conversion threephase asynchronous, comprise motor body 7, left end cap 3, right end cap 13 and driving key axle 11, terminal box 4 is installed on the motor body 7, be provided with the stator 5 and rotor 6 of cooperation in the motor body 7, stator 5 is connected with terminal box 4 circuit by transfer wire with rotor 6, the left end of driving key axle 11 is located in the installing hole of left end cap 3 by left bearing 1 rotating turret, the right-hand member of driving key axle 11 is located in the installing hole of right end cap 13 by right bearing 10 rotating turrets, split-type structural, easy accessibility, the installing hole perisporium of left end cap 3 is provided with the wavy spring sheet 2 that is enclosed within outside the driving key axle 11, be with sealing ring 9 between the installing hole perisporium of left end cap 3 and driving key axle 11 outer surfaces, be with shaft block ring 14 on the driving key axle 11 on right bearing 10 right sides, can effectively prevent driving key axle 11 left and right sides axial endplays, the right end cap 13 installing hole perisporiums in right bearing 10 left sides are embedded with the circlip for hole 12 that ring changes, good sealing effect.
Described right end cap 13 is provided with independently-powered blower fan 15, is provided with the protective cover 8 that blower fan 15 is covered on right end cap 13, and good cooling results can effectively prolong the motor life-span.
Motor of the present invention comprises stator 5, be that terminal box 4 is connected with motor body 7 by bolt above the stator 5, stator 5 is connected with packing ring with left end cap 3, right end cap 13 bolts, comprise fan 15 and left bearing 1 on the rotor 6, stator 5 and rotor 6 are connected by bearing, and blower fan 15 is fixed on the right end cap 13 by bolt, packing ring; V-ring 9 is contained on the driving key axle 11 of left end cap 3 outsides, and nameplate comprises data, is fixed on the stator 5 by rivet.
Operation principle of the present invention:
Claims (2)
1. frequency conversion threephase asynchronous, comprise motor body (7), left end cap (3), right end cap (13) and driving key axle (11), terminal box (4) is installed on the motor body (7), be provided with the stator (5) and rotor (6) of cooperation in the motor body (7), stator (5) is connected with terminal box (4) circuit by transfer wire with rotor (6), the left end of driving key axle (11) is located in the installing hole of left end cap (3) by left bearing (1) rotating turret, the right-hand member of driving key axle (11) is located in the installing hole of right end cap (13) by right bearing (10) rotating turret, it is characterized in that: the installing hole perisporium of left end cap (3) is provided with and is enclosed within the outer wavy spring sheet (2) of driving key axle (11), be with sealing ring (9) between the installing hole perisporium of left end cap (3) and driving key axle (11) outer surface, be with shaft block ring (14) on the driving key axle (11) on right bearing (10) right side, right end cap (13) the installing hole perisporium in right bearing (10) left side is embedded with the circlip for hole (12) that ring changes.
2. frequency conversion threephase asynchronous as claimed in claim 1 is characterized in that: described right end cap (13) is provided with independently-powered blower fan (15), is provided with the protective cover (8) that blower fan (15) is covered on right end cap (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101813520A CN101938180A (en) | 2009-07-02 | 2009-07-02 | Variable-frequency three-phase asynchronous electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101813520A CN101938180A (en) | 2009-07-02 | 2009-07-02 | Variable-frequency three-phase asynchronous electric motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101938180A true CN101938180A (en) | 2011-01-05 |
Family
ID=43391358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101813520A Pending CN101938180A (en) | 2009-07-02 | 2009-07-02 | Variable-frequency three-phase asynchronous electric motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101938180A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110165815A (en) * | 2019-05-21 | 2019-08-23 | 卧龙电气驱动集团股份有限公司 | A kind of shaft vibrating motor sealing structure of shaft end |
-
2009
- 2009-07-02 CN CN2009101813520A patent/CN101938180A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110165815A (en) * | 2019-05-21 | 2019-08-23 | 卧龙电气驱动集团股份有限公司 | A kind of shaft vibrating motor sealing structure of shaft end |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110105 |