CN203434785U - Motor bearing structure used for large-scale draught fan - Google Patents
Motor bearing structure used for large-scale draught fan Download PDFInfo
- Publication number
- CN203434785U CN203434785U CN201320557743.XU CN201320557743U CN203434785U CN 203434785 U CN203434785 U CN 203434785U CN 201320557743 U CN201320557743 U CN 201320557743U CN 203434785 U CN203434785 U CN 203434785U
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- bearing
- self
- aligning roller
- cover
- roller bearing
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Abstract
The utility model relates to a motor bearing structure used for a large-scale draught fan. The structure comprises a rotating shaft, a sealing ring, a shaft retaining ring, an oil slinger, a bearing outer cover, a self-aligning roller bearing, an end cap, a bearing inner cover and a bearing sleeve. The self-aligning roller bearing is installed in the bearing sleeve and is fixed by the oil slinger used for preventing lubricating grease from leaking to the outside and the shaft retaining ring used for limiting. The rotating shaft passes through the bearing inner cover and the self-aligning roller bearing and is extended out of the bearing outer cover. The end cap is used to support and fix the bearing sleeve. An outer side of the bearing outer cover is provided with a rubber sealing ring. According to the bearing structure of the utility model, the self-aligning roller bearing is used, and the self-aligning roller bearing bears a strong radial load and an axial load of either direction, possesses an aligning effect and can adjust a coaxial error of draught fan and motor shaft extensions. When the shaft is bended under a stress or is not installed concentrically, the bearing can be still used. Coaxiality of the draught fan and the motor after assembling can be guaranteed. Damages caused by vibration of the draught fan are reduced and operation of the draught fan is safe and reliable.
Description
Technical field
The utility model relates to a kind of large fan motor bearing structure, and this kind adopts the high voltage large-sized blower fan of self-aligning roller bearing to guarantee the more steady, reliable of fan operation with the bearing arrangement of motor.
Background technology
On the basis of advancing by leaps and bounds in large fan research and development, motor bearings structure becomes the weak link of a relative thin.Because fans load moment of inertia is very large, uses traditional bearing arrangement can cause burn-out of bearing, thereby bring large economic loss.Concentricity when guaranteeing fan operation, bears powerful radial load, also will bear axial load simultaneously, and we go out this self-aligning roller bearing structure according to Practical manufacturing Experience Design, have met the handling characteristics of blower fan, make fan operation safe and reliable.
Summary of the invention
The purpose of this utility model is to solve large fan to burn phenomenon with bearing of motor and bearing shell, adopts self-aligning roller bearing, bearing outside huge radial load, also can bear the axial load of either direction; Meet a kind of large fan motor bearing structure that fans load moment of inertia requires.
The technical scheme providing according to the utility model, a kind of large fan motor bearing structure, comprises rotating shaft, sealing ring, shaft block ring, oil scraper ring, bearing end cover, self-aligning roller bearing, end cap, internal bearing cover and bearing holder (housing, cover); Self-aligning roller bearing is arranged in bearing holder (housing, cover), and with preventing that oil scraper ring that lubricating grease leaks outside and the shaft block ring of spacing use are fixed, rotating shaft is through internal bearing cover, self-aligning roller bearing, and stretches out bearing end cover, with end cap, bearing holder (housing, cover) supported fixing.
As further improvement of the utility model, rubber seal is installed in described bearing end cover outside.
As further improvement of the utility model, described self-aligning roller bearing adopts a set of self-aligning roller bearing, and it has two row symmetric form spherical rollers, and described spherical roller outer ring raceway is spheric.
The utility model bearing arrangement is owing to adopting self-aligning roller bearing to hold, and described self-aligning roller bearing bears powerful radial load and the axial load of either direction, has the effect of aligning, can adjust the coaxiality error of blower fan and motor-shaft extending; When the stressed bending of axle or installation decentraction, bearing still can normally use; Can guarantee the axiality after blower fan and motor assembling, reduce the infringement that blower fan vibrations bring, make fan operation safe and reliable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with concrete accompanying drawing, the utility model is described in further detail.
As shown in Figure 1: described a kind of large fan motor bearing structure, comprises rotating shaft 1, sealing ring 2, shaft block ring 3, oil scraper ring 4, bearing end cover 5, self-aligning roller bearing 6, end cap 7, internal bearing cover 8 and bearing holder (housing, cover) 9.
Described self-aligning roller bearing 6 is arranged in bearing holder (housing, cover) 9, with preventing that oil scraper ring 4 that lubricating grease leaks outside and the shaft block ring 3 of spacing use are fixed, rotating shaft 1 is stretched out bearing end cover 5 through internal bearing cover 8, self-aligning roller bearing 6, the rubber seal 2 of waterproof and dustproof effect has been installed in bearing end cover 5 outsides, with end cap 7, bearing holder (housing, cover) 9 has been supported fixing; Guarantee its reliability of operation.
Described self-aligning roller bearing 6 adopts a set of self-aligning roller bearing, it has two row symmetric form spherical rollers, outer ring raceway is spheric, described self-aligning roller bearing bears powerful radial load and the axial load of either direction, there is good aligning performance, can air blower of compensating and the coaxiality error of shaft extension, meet the requirement that load rotating inertia is large, when the stressed bending of axle or installation decentraction, bearing still can normally use.
Bearing arrangement described in the utility model meets the requirement that blower fan moment of inertia is large, not only bears radial load, also bears axial load, has very high impact resistance.Good aligning performance can be eliminated the coaxiality error of blower fan and motor-shaft extending.Make fan operation steadily reliable.Therefore,, in large fan field, this self-aligning roller bearing structure applications is very extensive; It is the optimal selection of motor for large fan.
Claims (3)
1. a large fan motor bearing structure, is characterized in that: comprise rotating shaft (1), shaft block ring (3), oil scraper ring (4), bearing end cover (5), self-aligning roller bearing (6), end cap (7), internal bearing cover (8) and bearing holder (housing, cover) (9); Described self-aligning roller bearing (6) is arranged in bearing holder (housing, cover) (9), fixing with oil scraper ring (4) and shaft block ring (3), internal bearing cover (8), self-aligning roller bearing (6) are passed in rotating shaft (1), and stretch out bearing end cover (5), with end cap (7), bearing holder (housing, cover) (9) are supported fixing.
2. large fan motor bearing structure as claimed in claim 1, is characterized in that: rubber seal (2) is installed in described bearing end cover (5) outside.
3. large fan motor bearing structure as claimed in claim 1, is characterized in that: described self-aligning roller bearing (6) adopts a set of self-aligning roller bearing, and it has two row symmetric form spherical rollers, and described spherical roller outer ring raceway is spheric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320557743.XU CN203434785U (en) | 2013-09-09 | 2013-09-09 | Motor bearing structure used for large-scale draught fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320557743.XU CN203434785U (en) | 2013-09-09 | 2013-09-09 | Motor bearing structure used for large-scale draught fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203434785U true CN203434785U (en) | 2014-02-12 |
Family
ID=50063800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320557743.XU Expired - Fee Related CN203434785U (en) | 2013-09-09 | 2013-09-09 | Motor bearing structure used for large-scale draught fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203434785U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103475142A (en) * | 2013-09-09 | 2013-12-25 | 中达电机股份有限公司 | Motor bearing structure for large-scale fan |
-
2013
- 2013-09-09 CN CN201320557743.XU patent/CN203434785U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103475142A (en) * | 2013-09-09 | 2013-12-25 | 中达电机股份有限公司 | Motor bearing structure for large-scale fan |
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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 |
Granted publication date: 20140212 Termination date: 20150909 |
|
| EXPY | Termination of patent right or utility model |