CN101645625A - Structure for preventing bearing of asynchronous dynamo from running off - Google Patents
Structure for preventing bearing of asynchronous dynamo from running off Download PDFInfo
- Publication number
- CN101645625A CN101645625A CN200910144840A CN200910144840A CN101645625A CN 101645625 A CN101645625 A CN 101645625A CN 200910144840 A CN200910144840 A CN 200910144840A CN 200910144840 A CN200910144840 A CN 200910144840A CN 101645625 A CN101645625 A CN 101645625A
- Authority
- CN
- China
- Prior art keywords
- bearing
- cover
- running
- end cap
- asynchronous dynamo
- 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.)
- Pending
Links
Images
Landscapes
- Rolling Contact Bearings (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a structure for preventing a bearing of an asynchronous dynamo from running off. The structure comprises an end cover, a bearing housing in the inner circle of the end cover isinternally embedded with an insert bush with the inner diameter being identical with the outer circle diameter of the bearing, the bearing is placed in the insert bush, the two sides of the bearing are provided with a bearing inner cover and a bearing outer cover on the shaft, and the bearing inner cover and the bearing outer cover are respectively connected with the end cover and the insert bush. In the invention, an insert bush is added in the bearing housing in the inner circle of the end cover and the bearing is placed in the insert bush, thus ensuring the fit dimension of the bearing, excellently solving the running-off problem of the bearing, and prolonging the running cycle of the asynchronous dynamo.
Description
Technical field
The present invention relates to motor, be specifically related to the bearing arrangement of asynchronous machine.
Background technology
Bearing is as the link of asynchronous machine stationary part and rotating part, and can its quality determining asynchronous machine move continuously, even influence electrical machinery life.In recent years, the problem of bearing of asynchronous dynamo from running off is obvious day by day.The bearing run-off is divided into two kinds: a kind of is the bearing cover of acting as a travelling agent, and promptly between the bearing chamber of bearing outer ring and end cap relative displacement takes place, and fit clearance is excessive, produces the outer ring and skids in bearing chamber, follows the phenomenon of axle rotation; Another kind is a cover in bearing runs, and promptly between bearing inner race and the axle journal relative displacement takes place, and with the gap that contacted of axle, produces and the asynchronous rotation phenomenon of axle.
Under the normal condition, there is not relative displacement between bearing outer ring and end cap, inner ring and the axle journal, but owing to bearing need be repaired or reason such as setup error, after bearing is pulled out original bearing chamber by force, the interior round size of bearing chamber changes, enter as putting bearing once more, the tolerance fit size is destroyed, thereby produces fault.When the bearing run-off, no matter act as a travelling agent cover or run in cover, the operation down always motor is nonserviceabled is shortened bearing life, sometimes even can burn motor.
The existing method that solves the bearing run-off has two kinds: the one, at bearing chamber surface center-punching, by burr fastener shaft bearing outer-ring, and on axle center-punching, by the way of the fastening bearing inner race in pinnacle, this method has damage to bearing chamber, and the concentricity of end cap and bearing is difficult to guarantee; The 2nd, be coated with the way of fluid sealant on the bearing chamber surface, this method with bonding agent can play a role for the little motor of wear extent, but can not guarantee the concentricity of end cap and bearing, the difficult dismounting of motor simultaneously.
The content of invention
At the existing above-mentioned deficiency that solves the bearing of asynchronous dynamo from running off method, the applicant improves through research, and a kind of structure that prevents bearing of asynchronous dynamo from running off is provided, and has guaranteed the fit dimension of bearing, has well solved the problem of bearing run-off.
Technical scheme of the present invention is as follows:
A kind of structure that prevents bearing of asynchronous dynamo from running off, comprise end cap, bearing chamber in the end cap in the circle is embedded with the internal diameter edge cover identical with the bearing top circle diameter, bearing places in the described edge cover, the bearing both sides are provided with internal bearing cover and bearing end cover in axle, and internal bearing cover is connected with described end cap and edge cover respectively with bearing end cover.
Its further technical scheme is: described edge cover is circular thin-wall part, and thickness is 5～6mm.
Useful technique effect of the present invention is:
The present invention is at first to the bearing chamber finish turning in the circle in the end cap, to the almost not influence of mechanical property of end cap.Increase an edge cover in the bearing chamber by circle in end cap behind the finish turning, bearing places in the described edge cover, has guaranteed the fit dimension of bearing, has well solved the problem of bearing run-off, has prolonged the cycle of operation of motor.The present invention is simple in structure, compact, to bearing and bearing chamber not damaged, bearing quality is guaranteed, and can guarantees the concentricity of end cap and bearing.
Description of drawings
Fig. 1 is a generalized section of the present invention.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described further.
Fig. 1 is for generalized section of the present invention (for partly cuing open, only show the structure on a top, the structure of axle bottom is symmetrical with the structure on axle top, the Therefore, omited).As shown in Figure 1, the present invention includes end cap 2, the bearing chamber in the end cap 2 in the circle is through embedding edge cover 3 after the accurate Vehicle Processing.Edge cover 3 is a circular thin-wall part, adopts the 45# steel to make, and thickness is 5～6mm, and present embodiment is 5mm.End cap 2 and edge cover 3 are placed on the lathe together, and the interior circle of finish turning edge cover 3 makes the internal diameter of edge cover 3 identical with bearing 5 outside diameters, after processing, bearing 5 is arranged in the described edge cover 3.Bearing 5 both sides are provided with internal bearing cover 4 and bearing end cover 1 in axle, and internal bearing cover 4 is connected with described end cap 2 and edge cover 3 respectively with bearing end cover 1.This structure has guaranteed the fit dimension of bearing, has significantly reduced the generation of run-off fault.
Above-described only is preferred implementation of the present invention, the invention is not restricted to above embodiment.Be appreciated that other improvement and variation that those skilled in the art directly derive or associate under the prerequisite that does not break away from spirit of the present invention and design, all should think to be included within protection scope of the present invention.
Claims (2)
1. structure that prevents bearing of asynchronous dynamo from running off, it is characterized in that: comprise end cap, bearing chamber in the end cap in the circle is embedded with the internal diameter edge cover identical with the bearing top circle diameter, bearing places in the described edge cover, the bearing both sides are provided with internal bearing cover and bearing end cover in axle, and internal bearing cover is connected with described end cap and edge cover respectively with bearing end cover.
2. according to the described structure that prevents bearing of asynchronous dynamo from running off of claim 1, it is characterized in that: described edge cover is circular thin-wall part, and thickness is 5～6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910144840A CN101645625A (en) | 2009-09-04 | 2009-09-04 | Structure for preventing bearing of asynchronous dynamo from running off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910144840A CN101645625A (en) | 2009-09-04 | 2009-09-04 | Structure for preventing bearing of asynchronous dynamo from running off |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101645625A true CN101645625A (en) | 2010-02-10 |
Family
ID=41657372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910144840A Pending CN101645625A (en) | 2009-09-04 | 2009-09-04 | Structure for preventing bearing of asynchronous dynamo from running off |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101645625A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102570691A (en) * | 2012-01-09 | 2012-07-11 | 德州恒力电机有限责任公司 | Optimizing scheme for vertical motor floating end bearing structure |
| CN106972679A (en) * | 2017-04-26 | 2017-07-21 | 黑龙江圣邦投资咨询有限公司 | A kind of thin wall shaft bearing bore is bushing |
-
2009
- 2009-09-04 CN CN200910144840A patent/CN101645625A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102570691A (en) * | 2012-01-09 | 2012-07-11 | 德州恒力电机有限责任公司 | Optimizing scheme for vertical motor floating end bearing structure |
| CN106972679A (en) * | 2017-04-26 | 2017-07-21 | 黑龙江圣邦投资咨询有限公司 | A kind of thin wall shaft bearing bore is bushing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102780303B (en) | Motor shaft sealing structure with high protection grade | |
| CN107023561A (en) | It is used in particular for the double-row conical bearing of supporting wind power generation set armature spindle | |
| CN102231583A (en) | Motor shaft extension end sealing structure and motor | |
| CN101265976A (en) | Mechanical seal device for a rotary shaft | |
| CN101764452A (en) | High-pressure motor bearing protective device | |
| CN101251191A (en) | Combined seal structure for overloading gear case high speed axis | |
| US8397906B2 (en) | Idler | |
| CN201450392U (en) | Gasket and motor bearing system thereof | |
| WO2010108394A1 (en) | Self-oiling sliding bearing system and electric machine using same | |
| CN101645625A (en) | Structure for preventing bearing of asynchronous dynamo from running off | |
| CN105465105B (en) | A kind of floating mechanical sealing high speed rotary distributor | |
| CN102000617B (en) | Main shaft system of vertical shaft type sand maker | |
| CN101710749B (en) | Oil storage device of high-pressure motor bearing | |
| CN201490813U (en) | Structure for preventing run-off of asynchronous motor bearing | |
| CN202206238U (en) | Motor and mining machine | |
| CN201137700Y (en) | Non-contact oil seal device | |
| CN202545568U (en) | Sealed full cylindrical roller bearing | |
| CN102979813A (en) | Insulating bearing with insulating ferrule and manufacturing method thereof | |
| CN102817907A (en) | Thrust resisting assembly of thrust load, and motor using assembly | |
| CN202094735U (en) | Motor shaft extension end sealing structure and motor | |
| CN201450391U (en) | Gasket and motor bearing system thereof | |
| CN203068025U (en) | Central slewing joint provided with bearing additionally | |
| CN102522845A (en) | Motor bearing apparatus with sleeve | |
| CN201262311Y (en) | Lubrication apparatus of traveling wheel | |
| CN203434782U (en) | Structure capable of preventing motor bearing from running outer ring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100210 |