CN204517607U - A kind of threephase asynchronous - Google Patents
A kind of threephase asynchronous Download PDFInfo
- Publication number
- CN204517607U CN204517607U CN201520167202.5U CN201520167202U CN204517607U CN 204517607 U CN204517607 U CN 204517607U CN 201520167202 U CN201520167202 U CN 201520167202U CN 204517607 U CN204517607 U CN 204517607U
- Authority
- CN
- China
- Prior art keywords
- motor shaft
- bearing
- rear end
- end cap
- fore bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Motor Or Generator Frames (AREA)
Abstract
The utility model provides a kind of threephase asynchronous, belongs to field of electromechanical technology.It solve existing threephase asynchronous in harsh environments, there will be the problems such as rotating shaft axial endplay.This threephase asynchronous comprises motor shaft, motor casing and the front end housing and the rear end cap that are installed on motor casing rear and front end, motor shaft is arranged in motor casing, motor shaft is connected by fore bearing with front end housing, motor shaft is connected by rear bearing with rear end cap, the rear end of motor shaft is arranged with fan blade, the inner side of front end housing and rear end cap is all fixed with pressing plate by screw, pressing plate has the flange part that a circle is resisted against the outer ring of fore bearing and rear bearing, the outside of front end housing is fixed with fore bearing enclosing cover by screw, the outside of rear end cap is also fixed with rear bearing enclosing cover by screw, wavy spring sheet is provided with between fore bearing enclosing cover and fore bearing.It is simple that the utility model has structure, can eliminate the advantages such as axial endplay.
Description
Technical field
The utility model belongs to field of electromechanical technology, relates to a kind of motor, particularly a kind of threephase asynchronous.
Background technology
Threephase asynchronous is a kind of alternating current motor, is a class motor of powering by accessing 380V three-phase alternating-current supply simultaneously.Because the rotor of threephase asynchronous rotates with identical direction, different rotating speeds from stator rotating magnetic field, there is revolutional slip, so be threephase asynchronous.Due to it, to have structure simple, manufacture, operation and maintenance are conveniently, reliable and quality is less, the advantages such as cost is lower, so be widely used in driving in most of workers and peasants' manufacturing machine such as lathe, water pump, compressor, lifting hoisting equipment, mining machinery, light industry and machinery, agricultrue sideline production processing machinery and household electrical appliance and various electric tool, small-sized a few point device.
At present, the rotating shaft of existing threephase asynchronous is that entry type is set on motor front and back ends by bearing, by wave washer elastic force make rotating shaft axially wherein one section spacing, grinding head motor due to processing environment comparatively severe, when the cutting force of emery wheel is greater than wave washer elastic force, there will be the forward and backward movement of rotating shaft out of control, occur axial endplay, Long-Time Service there will be the phenomenons such as diastema, cannot meet high-precision grinding needs.
For above-mentioned Problems existing, people have made improvement miscellaneous to threephase asynchronous, some has also applied for patent, such as, discloses a kind of grinding head motor structure [application number: 201220145131.5 eliminating axial endplay belonging to threephase asynchronous in Chinese patent literature data; Authorization Notice No.: CN202550770U], it comprises motor body, motor body end is provided with end cap, bearing chamber is provided with in end cap, be provided with bearing in bearing chamber, be provided with axis through bore in bearing chamber, axis through bore inwall is provided with internal thread, axis, by the interior positioning sleeve be also provided with for compressing bearing, has the external screw thread with the internal thread corresponding matching of axis through bore outside this positioning sleeve.
Above-mentioned a kind of grinding head motor structure eliminating axial endplay, be connected with the axis through bore inner thread in bearing chamber by positioning sleeve, by regulating positioning sleeve to locate epitrochanterian bearing outer ring, compare the phenomenon that traditional technology solves rotating shaft axial endplay to a certain extent.But its structure need process internal and external threads, its difficulty of processing is increased, cost improves, and its motor other end does not arrange location structure, causes its other end in harsh environments, occur the phenomenons such as rotating shaft vibration.
Summary of the invention
The purpose of this utility model is for the above-mentioned problems in the prior art, provides a kind of structure simple, can eliminate the threephase asynchronous of axial endplay.
The purpose of this utility model realizes by following technical proposal: a kind of threephase asynchronous, comprise motor shaft, motor casing and the front end housing and the rear end cap that are installed on motor casing rear and front end, described motor shaft is arranged in motor casing, described motor shaft is connected by fore bearing with front end housing, described motor shaft is connected by rear bearing with rear end cap, the rear end of described motor shaft is arranged with fan blade, it is characterized in that, described front end housing and the inner side of rear end cap are all fixed with pressing plate by screw, described pressing plate has the flange part that a circle is resisted against the outer ring of fore bearing and rear bearing, the outside of described front end housing is fixed with fore bearing enclosing cover by screw, the outside of described rear end cap is also fixed with rear bearing enclosing cover by screw, wavy spring sheet is provided with between described fore bearing enclosing cover and fore bearing.
This threephase asynchronous, axle bearing outer-ring is compressed by the flange part on pressing plate, and the wavy spring sheet between fore bearing enclosing cover and fore bearing, its structure is not only simple, and effectively can eliminate the axial endplay of motor shaft and bearing, thus ensure that the steady operation of threephase asynchronous and extend its useful life.
In above-mentioned a kind of threephase asynchronous, described motor shaft and be provided with outside framework oil seal between front end housing and rear end cap.Arranging of outside framework oil seal can enter motor internal by anti-sealing.
Compared with prior art, it is simple that this threephase asynchronous has structure, can eliminate the advantages such as axial endplay.
Accompanying drawing explanation
Fig. 1 is the half section schematic diagram of this threephase asynchronous.
In figure, 1, motor shaft; 2, motor casing; 3, front end housing; 4, rear end cap; 5, fore bearing; 6, rear bearing; 7, fan blade; 8, screw; 9, pressing plate; 9a, flange part; 10, fore bearing enclosing cover; 11, rear bearing enclosing cover; 12, wavy spring sheet; 13, outside framework oil seal.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1, this threephase asynchronous comprises motor shaft 1, motor casing 2 and the front end housing 3 and the rear end cap 4 that are installed on motor casing 2 rear and front end, motor shaft 1 is arranged in motor casing 2, motor shaft 1 is connected by fore bearing 5 with front end housing 3, motor shaft 1 is connected by rear bearing 6 with rear end cap 4, the rear end of motor shaft 1 is arranged with fan blade 7, the inner side of front end housing 3 and rear end cap 4 is all fixed with pressing plate 9 by screw 8, pressing plate 9 has the flange part 9a that a circle is resisted against the outer ring of fore bearing 5 and rear bearing 6, the outside of front end housing 3 is fixed with fore bearing enclosing cover 10 by screw 8, the outside of rear end cap 4 is also fixed with rear bearing enclosing cover 11 by screw 8, wavy spring sheet 12 is provided with between fore bearing enclosing cover 10 and fore bearing 5.
In order to prevent the motor internal in this threephase asynchronous from intaking, its motor shaft 1 and be provided with outside framework oil seal 13 between front end housing 3 and rear end cap 4.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Although more employ the terms such as motor shaft 1, motor casing 2, front end housing 3, rear end cap 4, fore bearing 5, rear bearing 6, fan blade 7, screw 8, pressing plate 9, flange part 9a, fore bearing enclosing cover 10, rear bearing enclosing cover 11, wavy spring sheet 12, outside framework oil seal 13 herein, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present utility model more easily; The restriction that they are construed to any one additional is all contrary with the utility model spirit.
Claims (2)
1. a threephase asynchronous, comprise motor shaft (1), motor casing (2) and be installed on front end housing (3) and the rear end cap (4) of motor casing (2) rear and front end, described motor shaft (1) is arranged in motor casing (2), described motor shaft (1) is connected by fore bearing (5) with front end housing (3), described motor shaft (1) is connected by rear bearing (6) with rear end cap (4), the rear end of described motor shaft (1) is arranged with fan blade (7), it is characterized in that, described front end housing (3) and the inner side of rear end cap (4) are all fixed with pressing plate (9) by screw (8), described pressing plate (9) has the flange part (9a) that a circle is resisted against the outer ring of fore bearing (5) and rear bearing (6), the outside of described front end housing (3) is fixed with fore bearing enclosing cover (10) by screw (8), the outside of described rear end cap (4) is also fixed with rear bearing enclosing cover (11) by screw (8), wavy spring sheet (12) is provided with between described fore bearing enclosing cover (10) and fore bearing (5).
2. a kind of threephase asynchronous according to claim 1, is characterized in that, described motor shaft (1) and be provided with outside framework oil seal (13) between front end housing (3) and rear end cap (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520167202.5U CN204517607U (en) | 2015-03-24 | 2015-03-24 | A kind of threephase asynchronous |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520167202.5U CN204517607U (en) | 2015-03-24 | 2015-03-24 | A kind of threephase asynchronous |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204517607U true CN204517607U (en) | 2015-07-29 |
Family
ID=53715537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520167202.5U Expired - Fee Related CN204517607U (en) | 2015-03-24 | 2015-03-24 | A kind of threephase asynchronous |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204517607U (en) |
-
2015
- 2015-03-24 CN CN201520167202.5U patent/CN204517607U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204465284U (en) | A kind of Flame-Proof Three-Phase Induction Motors | |
| CN204465282U (en) | Threephase asynchronous | |
| CN103056769A (en) | Single-end double-grinding-wheel electric spindle | |
| CN204465281U (en) | A kind of threephase asynchronous machine | |
| CN204413845U (en) | A kind of integral type electro spindle | |
| CN204517607U (en) | A kind of threephase asynchronous | |
| CN204131287U (en) | A kind of grinding head motor | |
| CN107093938A (en) | Magnetic suspension motor and domestic air conditioning | |
| CN206962569U (en) | A kind of rotor and its servomotor | |
| CN101463902A (en) | Mechanical seal stationary ring and rotating ring, and double-end mechanical seal composed of the same | |
| CN107846111A (en) | A kind of servomotor structure for wind electricity change paddle | |
| CN205160274U (en) | Motor shaft's anti -disengaging structure | |
| CN204517608U (en) | A kind of threephase asynchronous | |
| CN204046311U (en) | The rotary seal mechanism of electric motor end cap and rotating shaft | |
| CN204005174U (en) | A kind of biaxial plane oil pump assy | |
| CN209206952U (en) | A kind of heavy type numerical control lathe spindle relief arrangement | |
| CN203636594U (en) | Multifunctional head grinding apparatus | |
| CN203045508U (en) | Numerical control grinding wheel dressing motorized spindle | |
| CN204231089U (en) | A kind of grinding head motor | |
| CN103427535A (en) | Vibration reduction structure applicable to bearing room | |
| CN207053310U (en) | Magnetic suspension motor and domestic air conditioning | |
| CN104358776A (en) | Motor shaft | |
| CN103867435B (en) | Novel noise reduction type screw compressor | |
| CN217115844U (en) | Vacuum pump integral type electric motor rotor and connection structure thereof | |
| CN205414429U (en) | Permanent magnetism synchronization electric main shaft structure of wedge air gap |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20150729 Termination date: 20180324 |