CN204258509U - A kind of wide temperature low-noise structure for motor - Google Patents
A kind of wide temperature low-noise structure for motor Download PDFInfo
- Publication number
- CN204258509U CN204258509U CN201420811202.XU CN201420811202U CN204258509U CN 204258509 U CN204258509 U CN 204258509U CN 201420811202 U CN201420811202 U CN 201420811202U CN 204258509 U CN204258509 U CN 204258509U
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- bearing
- wide temperature
- end cap
- runddichtringo
- rotating shaft
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Abstract
For a wide temperature low-noise structure for motor, relate to a kind of electric machine structure.At present, noise and the vibration of motor are large, and the utility model comprises end cap, rotating shaft, outside framework oil seal and bearing, and described outside framework oil seal and bearing are arranged between end cap and rotating shaft, and outside framework oil seal is arranged on axle stretch end, between described end cap and rotating shaft, be also provided with the interior jump ring of rigid bearing outer ring; Described bearing outer ring be provided with O RunddichtringO with the use of two grooves, in bearing, lubricating grease is wide temperature grease.The technical program, owing to have employed the vibration damping safeguard procedures of two O RunddichtringO, makes shaft strength even, effectively prevents axially displaced, thus the noise reduced in the course of work and vibration, and reduces bearing assemble damage, extends bearing useful life.
Description
Technical field
The utility model relates to a kind of electric machine structure, is espespecially applied to the wide temperature low-noise structure in railway locomotive cooling system on variable-frequency motor.
Background technology
The cooling variable-frequency motor used in current motorcycle cooling system, usually be installed in the circulation pipe road junction at locomotive top, when locomotive runs in the environment that day and night temperature (-40 DEG C ~ 70 DEG C) is larger, work in motor in cooling system is also in environment that this temperature difference differs greatly, therefore also corresponding raising is required to motor.In addition, along with the raising of people's living standard, higher requirement be there has also been to the comfort level of locomotive, and then also corresponding raising is required to the noise of motor and vibration.
Utility model content
The technical assignment of the technical problems to be solved in the utility model and proposition carries out improving to prior art and improves, and provides a kind of wide temperature low-noise structure for motor, with resistance to temperature wide ranges, vibrate little, the obvious object of erasure effect.For this reason, the utility model takes following technical scheme.A kind of wide temperature low-noise structure for motor, comprise end cap, rotating shaft, outside framework oil seal and bearing, it is characterized in that: described outside framework oil seal and bearing are arranged between end cap and rotating shaft, and outside framework oil seal is arranged on axle stretch end, between described end cap and rotating shaft, be provided with the interior jump ring of rigid bearing outer ring; Described bearing outer ring be provided with O RunddichtringO with the use of two grooves.Owing to have employed the vibration damping safeguard procedures of two O RunddichtringO, make shaft strength even, effectively prevent axially displaced, thus the noise reduced in the course of work and vibration, and reduce bearing assemble damage, extend bearing useful life.
As improving further and supplementing technique scheme, the utility model also comprises following additional technical feature.
Distance between described two grooves is 1/3 of bearing width, and channel bottom passes through arc transition.Can better coordinate with O RunddichtringO.
On described end cap, the outer edge employing angle of bearings mounted bearing chamber is the guide angle of 60 °-75 °, and the guiding grade of tolerance be attached thereto is G6, and width is 2-3mm, and bearing chamber fit tolerance grade is H5-H6.Ensure that bearing not damaged press-in bearing chamber and two O RunddichtringO not damaged slide.
Described O RunddichtringO is circular, and its internal diameter is the 6-7% of bearing groove place internal diameter, and the material of O RunddichtringO is polytetrafluoroethylene.Bearing is protected and vibration damping.
In bearing, lubricating grease is wide temperature grease.The temperature range of wide temperature grease is-40 DEG C ~ 160 DEG C, and when meeting harsh and unforgiving environments temperature, bearing well rotates, thus ensures the intact operation of motor.
Beneficial effect: owing to have employed the vibration damping safeguard procedures of two O RunddichtringO, makes shaft strength even, effectively prevents axially displaced, thus the noise reduced in the course of work and vibration, and reduces bearing assemble damage, extends bearing useful life; The temperature range of wide temperature grease is-40 DEG C ~ 160 DEG C in addition, and when meeting harsh and unforgiving environments temperature, bearing well rotates, thus ensures the intact operation of motor.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
In figure: 1, rotating shaft, 2, outside framework oil seal, 3, end cap, 4, O RunddichtringO, 5, interior jump ring, 6, bearing.
Embodiment
Below in conjunction with Figure of description, the technical solution of the utility model is described in further detail.
As shown in Figure 1, the wide temperature low-noise structure of the one that the present embodiment provides, it comprises end cap 3, rotating shaft 1, outside framework oil seal 2 and bearing 6, described outside framework oil seal 2 and bearing 6 are arranged between end cap 3 and rotating shaft 1, and outside framework oil seal 2 is arranged on axle stretch end, between described end cap 3 and rotating shaft 1, be also provided with the interior jump ring 5 of rigid bearing outer ring; Described bearing outer ring be provided with O RunddichtringO 4 with the use of two grooves, in bearing 6, lubricating grease is wide temperature grease.
Distance between described two grooves is 1/3 of bearing width, and channel bottom passes through arc transition.
On described end cap 3, the outer edge employing angle of bearings mounted bearing chamber is the guide angle of 60 °-75 °, and the guiding grade of tolerance be attached thereto is G6, and width is 2-3mm, and bearing chamber fit tolerance grade is H5-H6.
Described O RunddichtringO 4 is in circular, and its internal diameter is the 6-7% of bearing groove place internal diameter, and the material of O RunddichtringO is polytetrafluoroethylene.
Mainly just reduce suffered external force in bearing installation and running extremely minimum, and adopt the large guide type location and installation of its bearing chamber 60 °-75 °; In addition, two O RunddichtringO is adopted to protect and damping bearing, for reducing bear vibration and noise.Before bearing assemble, outside bearing chamber and O RunddichtringO, be coated with wide temperature grease, its effect: one be bearing press-in time, can lubricant effect be played; Two is to reduce bearing operation noise; Jump ring rigid bearing outer ring in finally using, prevents bearing play.
The utility model structure is by test, and carried out contrast test with common electric machine, data see the following form:
A kind of wide temperature low-noise structure for motor that the present embodiment provides, the vibration that it vibrates, noise is better than common electric machine completely, noise and temperature rise, its vibration can reduce 12.5%, and noise can reduce by 6.5%.
A kind of wide temperature low-noise structure for motor shown in above Fig. 1 is specific embodiment of the utility model; the utility model substantive distinguishing features and progress are embodied; can according to the use needs of reality; under enlightenment of the present utility model; it is carried out to the equivalent modifications of the aspect such as shape, structure, all at the row of the protection range of this programme.
Claims (5)
1. the wide temperature low-noise structure for motor, comprise end cap, rotating shaft, outside framework oil seal and bearing, it is characterized in that: described outside framework oil seal and bearing are arranged between end cap and rotating shaft, and outside framework oil seal is arranged on axle stretch end, between described end cap and rotating shaft, be provided with the interior jump ring of rigid bearing outer ring; Described bearing outer ring be provided with O RunddichtringO with the use of two grooves.
2. a kind of wide temperature low-noise structure for motor according to claim 1, is characterized in that: the distance between described two grooves is 1/3 of bearing width, and channel bottom passes through arc transition.
3. a kind of wide temperature low-noise structure for motor according to claim 1, it is characterized in that: on described end cap, the outer edge employing angle of bearings mounted bearing chamber is the guide angle of 60 °-75 °, the guiding grade of tolerance be attached thereto is G6, width is 2-3mm, and bearing chamber fit tolerance grade is H5-H6.
4. a kind of wide temperature low-noise structure for motor according to claim 1, it is characterized in that: described O RunddichtringO is circular, and its internal diameter is the 6-7% of bearing groove place internal diameter, the material of O RunddichtringO is polytetrafluoroethylene.
5. a kind of wide temperature low-noise structure for motor according to claim 1, is characterized in that: in bearing, lubricating grease is wide temperature grease.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420811202.XU CN204258509U (en) | 2014-12-18 | 2014-12-18 | A kind of wide temperature low-noise structure for motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420811202.XU CN204258509U (en) | 2014-12-18 | 2014-12-18 | A kind of wide temperature low-noise structure for motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204258509U true CN204258509U (en) | 2015-04-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420811202.XU Active CN204258509U (en) | 2014-12-18 | 2014-12-18 | A kind of wide temperature low-noise structure for motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN204258509U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107394945A (en) * | 2017-08-16 | 2017-11-24 | 杭州江南电机股份有限公司 | One kind defends kitchen ceiling appliance motor special |
-
2014
- 2014-12-18 CN CN201420811202.XU patent/CN204258509U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107394945A (en) * | 2017-08-16 | 2017-11-24 | 杭州江南电机股份有限公司 | One kind defends kitchen ceiling appliance motor special |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 312300 No. 1801 Renmin West Road, Shaoxing, Zhejiang, Shangyu Patentee after: Wolong Electric Drive Group Co., Ltd. Address before: 312300 No. 1801 Renmin West Road, Shaoxing, Zhejiang, Shangyu Patentee before: Wolong Electric Group Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |