CN203685659U - Oil discharge structure of bearing cavity of vertical centrifugal pump - Google Patents
Oil discharge structure of bearing cavity of vertical centrifugal pump Download PDFInfo
- Publication number
- CN203685659U CN203685659U CN201420032435.XU CN201420032435U CN203685659U CN 203685659 U CN203685659 U CN 203685659U CN 201420032435 U CN201420032435 U CN 201420032435U CN 203685659 U CN203685659 U CN 203685659U
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- Prior art keywords
- bearing
- interstage sleeve
- centrifugal pump
- vertical centrifugal
- rotating shaft
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Abstract
The utility model discloses an oil discharge structure of a bearing cavity of a vertical centrifugal pump. The oil discharge structure of the bearing cavity of the vertical centrifugal pump comprises a bearing, a rotating shaft and a bearing support. The upper side and the lower side of the bearing support are fixedly connected with an upper gland and a lower gland respectively. An upper bearing spacer sleeve and a lower bearing spacer sleeve which are fixedly arranged around the rotating shaft are attached to the upper side and the lower side of a bearing inner ring respectively. The bearing cavity is defined by the bearing support, the upper gland, the lower gland, the upper bearing spacer sleeve and the lower bearing spacer sleeve. The upper gland is further provided with an oil filling device. An oil discharge gap is reserved between the lower bearing spacer sleeve and the lower gland. The lower portion of the lower bearing spacer sleeve is fixedly connected with a dustproof oil slinger. The dustproof oil slinger is provided with at least one circle of protruding ring. A concave portion used for containing the protruding ring is formed in the position, corresponding to the protruding ring, of the lower gland. The oil discharge structure of the bearing cavity of the vertical centrifugal pump can discharge aged lubricating grease automatically.
Description
Technical field
The utility model relates to Fluid Machine and Fluid Dynamics Engineering field, particularly a kind of displacement configuration of vertical centrifugal pump bearing bore.
Background technique
At phosphate & compound fertilizer industry phosphoric acid storage tank pump, phosphoric acid groove pump, the stations such as waste water transfer pump, need to use vertical centrifugal pump, and the quality of vertical pump operation directly has influence on the stability of production system.In thermal power generation coal burning system, limestone (lime)/gypsum wet flue gas desulfurizing process operation good reliability, to the strong adaptability of coal type change, be at present in the world technology the most ripe, apply maximum sulfur removal technologies, be also the main flow technique that power plants flue gas desulfurization adopts.In limestone (lime)/gypsum wet desulfurizer, the peripheral vertical pump of desulfurization is key equipment, and at effluent pit pump, the stations such as absorption tower sump pump, slurrying district sump pump need to be used vertical centrifugal pump.In the running of centrifugal pump, in bearing box, the lubricated of lubricating grease plays a key effect.
In prior art, the sealing of bearing box seals by outside framework oil seal, but this sealing configuration is unfavorable for the injection of new lubricating grease and the eliminating of old lubricating grease.In the time that new lubricating grease injects from pump nozzle above, because the sealing of outside framework oil seal is stronger, below lubricating grease after aging can not effectively get rid of, cause bearing portion to can not get the lubricated of new lubricating grease.
Model utility content
The utility model provide a kind of can automatically get rid of aging lubricant grease the displacement configuration of vertical centrifugal pump bearing bore.
The technological scheme that the utility model provides is: a kind of displacement configuration of vertical centrifugal pump bearing bore, comprise bearing, rotating shaft and bearing bracket, and described bearing bracket upside and downside are fixedly connected with respectively upper press cover and lower cover, the upside of described bearing inner race and downside are fitted with to be respectively fixedly installed on and turn on axial bearing interstage sleeve under interstage sleeve and bearing, described bearing bracket, upper press cover, lower cover, on bearing, under interstage sleeve and bearing, interstage sleeve surrounds a bearing bore, on described upper press cover, be also provided with oiling device, under described bearing, between interstage sleeve and lower cover, be provided with oil extraction space, under described bearing, interstage sleeve bottom is fixedly connected with dustproof disc, described dustproof disc is provided with at least one circle convex hole, the position that described lower cover is corresponding with described convex hole is provided with the recess that holds described convex hole.
In the displacement configuration of above-mentioned vertical centrifugal pump bearing bore, described rotating shaft bottom is provided with the shaft shoulder, and under described rotating shaft, the lower surface of interstage sleeve contacts with the described shaft shoulder; The top of described rotating shaft is provided with round nut, on described round nut and bearing, between the upper surface of interstage sleeve, is provided with lock washer, and described round nut is for being fixed on lock washer the upper surface of interstage sleeve on described bearing.
In the displacement configuration of above-mentioned vertical centrifugal pump bearing bore, the screw that described bearing bracket is M10 by upper and lower two specifications is connected with described upper press cover and lower cover respectively.
In the displacement configuration of above-mentioned vertical centrifugal pump bearing bore, under described bearing, interstage sleeve is connected with described dustproof disc by one or more screws.
In the displacement configuration of above-mentioned vertical centrifugal pump bearing bore, described oiling device is oil nozzle, and described upper press cover is provided with the oiling passage that is communicated with oil nozzle and bearing bore.
Compared with prior art, the displacement configuration of vertical centrifugal pump bearing bore described in the utility model is by adopting the dustproof disc of mazy type, be provided with at least dustproof disc of one deck convex hole, this dustproof disc is fixed on bearing lower block and puts, in the process of equipment operation along with rotating shaft is turned round together, by centrifugal force, the aging grease that penetrates into gap is thrown away to bearing bore, greatly facilitate the injection of new lubricant oil and lubricating motion structure.
Further, what adopt due to this dustproof disc is mazy type design, has played good seal action simultaneously, prevents extraneous corrosive gas, and dust enters into bearing bore, plays oil extraction and dustproof double action.
Accompanying drawing explanation
Fig. 1 is embodiment's of the present utility model structural representation.
Embodiment
Below in conjunction with embodiment, the technical solution of the utility model is described in further detail, but does not form any restriction of the present utility model.
Shown in figure 1, a kind of displacement configuration of vertical centrifugal pump bearing bore, comprises bearing 1, rotating shaft 2 and bearing bracket 3, and described bearing bracket 3 upsides and downside are fixedly connected with respectively upper press cover 4 and lower cover 5, the upside of described bearing 1 inner ring and downside are fitted with to be respectively fixedly installed on and turn on axial bearing interstage sleeve 7 under interstage sleeve 6 and bearing, described bearing bracket 3, upper press cover 4, lower cover 5, on bearing, under interstage sleeve 6 and bearing, interstage sleeve 7 surrounds a bearing bore 8, on described upper press cover 4, be also provided with oiling device 9, described oiling device 9 is oil nozzle, described upper press cover 4 is provided with the oiling passage 17 that is communicated with oil nozzle and bearing bore 8, under described bearing, between interstage sleeve 7 and lower cover 5, be provided with oil extraction space 10, under described bearing, interstage sleeve 7 bottoms are fixedly connected with dustproof disc 11, described dustproof disc 11 is provided with at least one circle convex hole 12, in the present embodiment, convex hole 12 the bests are set to 2 layers, if more than two-layer, lubricant oil is difficult under the effect of centrifugal force by this labyrinth structure, described lower cover 5 position corresponding with described convex hole 12 is provided with the recess 13 that holds described convex hole 12, the width of described recess 13 is greater than the width of described convex hole 12.
In the present embodiment, described rotating shaft 2 bottoms are provided with the shaft shoulder 14, and under described rotating shaft, the lower surface of interstage sleeve 7 contacts with the described shaft shoulder 14; The top of described rotating shaft 2 is provided with round nut 15, on described round nut 15 and bearing, between the upper surface of interstage sleeve 6, be provided with lock washer 16, described round nut 15 is for being fixed on lock washer 16 upper surface of interstage sleeve 6 on described bearing, the screw that described bearing bracket 3 is M10 by upper and lower two specifications is connected with described upper press cover 4 and lower cover 5 respectively, and under described bearing, interstage sleeve 7 is connected with described dustproof disc 11 by one or more screws.
In as installed is used, install according to following steps:
1. interstage sleeve under bearing 7 is arranged in rotating shaft 2;
2. bearing 1 is arranged on the bearing position in rotating shaft 2;
3. upper press cover 4 penetrates rotating shaft 2;
4. on bearing, interstage sleeve 6 is through in rotating shaft 2, and the endoporus of the upper press cover 4 penetrating, and withstands on bearing 1;
5. lock washer 15 penetrates rotating shaft 2 and is placed in rotating shaft 2;
6. round nut 15 is through in rotating shaft 2, and tightens at screw position, makes on bearing on the interstage sleeve inner ring that is against bearing 1 tightly, and then makes bearing 1 fixing;
7. will penetrate the bearing position of bearing bracket 3 with upper-part simultaneously, bearing 1 is coordinated with bearing bracket 3 endoporus;
8. upper press cover 4 use M10 screw-drivings are fixed on bearing bracket 3;
9. penetrate lower cover 5, and be fixed on bearing bracket 3 with M10 screw;
10. penetrate dustproof disc 11, be screwed under bearing on interstage sleeve 7.
Above-mentioned installation finishes and injects lubricant oil, after equipment debugging is normal, can normally use.Using after the regular hour, the lubricant oil of bearing bore can be aging gradually, need to regularly replace lubricant oil, the method of its replacing is: open pump nozzle oiling, new lubricant oil can be clamp-oned aging lubricant oil in oil extraction space 10 gradually, by the High Rotation Speed of dustproof disc 11, the aging lubricant oil in oil extraction space 10 is thrown away to bearing bore 8 by eccentricity.
Above-described is only preferred embodiment of the present utility model, all any modifications of doing within the scope of spirit of the present utility model and principle, is equal to and replaces and improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. a displacement configuration for vertical centrifugal pump bearing bore, comprises bearing (1), rotating shaft (2) and bearing bracket (3), and described bearing bracket (3) upside and downside are fixedly connected with respectively upper press cover (4) and lower cover (5), the upside of described bearing (1) inner ring and downside are fitted with respectively and are fixedly installed on rotating shaft (2) bearing around interstage sleeve (7) under interstage sleeve (6) and bearing, described bearing bracket (3), upper press cover (4), lower cover (5), under interstage sleeve on bearing (6) and bearing, interstage sleeve (7) surrounds a bearing bore (8), on described upper press cover (4), be also provided with oiling device (9), it is characterized in that, between interstage sleeve under described bearing (7) and lower cover (5), be provided with oil extraction space (10), interstage sleeve under described bearing (7) bottom is fixedly connected with dustproof disc (11), described dustproof disc (11) is provided with at least one circle convex hole (12), described lower cover (5) position corresponding with described convex hole (12) is provided with the recess (13) that holds described convex hole (12).
2. the displacement configuration of vertical centrifugal pump bearing bore according to claim 1, is characterized in that, described rotating shaft (2) bottom is provided with the shaft shoulder (14), and the lower surface of interstage sleeve under described rotating shaft (7) contacts with the described shaft shoulder (14); The top of described rotating shaft (2) is provided with round nut (15), on described round nut (15) and bearing, between the upper surface of interstage sleeve (6), be provided with lock washer (16), described round nut (15) is for being fixed on lock washer (16) upper surface of interstage sleeve (6) on described bearing.
3. the displacement configuration of vertical centrifugal pump bearing bore according to claim 1, is characterized in that, described bearing bracket (3) is connected with described upper press cover (4) and lower cover (5) respectively by upper and lower two screws.
4. the displacement configuration of vertical centrifugal pump bearing bore according to claim 1, is characterized in that, interstage sleeve under described bearing (7) is connected with described dustproof disc (11) by one or more screws.
5. according to the displacement configuration of the vertical centrifugal pump bearing bore described in claim 1～4 any one, it is characterized in that, described oiling device (9) is oil nozzle, and described upper press cover (4) is provided with the oiling passage (17) that is communicated with oil nozzle and bearing bore (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420032435.XU CN203685659U (en) | 2014-01-20 | 2014-01-20 | Oil discharge structure of bearing cavity of vertical centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420032435.XU CN203685659U (en) | 2014-01-20 | 2014-01-20 | Oil discharge structure of bearing cavity of vertical centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203685659U true CN203685659U (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420032435.XU Expired - Fee Related CN203685659U (en) | 2014-01-20 | 2014-01-20 | Oil discharge structure of bearing cavity of vertical centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203685659U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100562A (en) * | 2014-07-03 | 2014-10-15 | 襄阳五二五泵业有限公司 | Bearing oil lubricating structure for upright pump |
| CN106930972A (en) * | 2017-03-16 | 2017-07-07 | 武汉船用机械有限责任公司 | A kind of associated sealing arrangement for bearings for Cargo Oil Pump |
| WO2022002432A3 (en) * | 2020-07-01 | 2022-03-03 | Sew-Eurodrive Gmbh & Co. Kg | Transmission with a shaft, at least one first bearing, a housing part, and a cover |
-
2014
- 2014-01-20 CN CN201420032435.XU patent/CN203685659U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100562A (en) * | 2014-07-03 | 2014-10-15 | 襄阳五二五泵业有限公司 | Bearing oil lubricating structure for upright pump |
| CN106930972A (en) * | 2017-03-16 | 2017-07-07 | 武汉船用机械有限责任公司 | A kind of associated sealing arrangement for bearings for Cargo Oil Pump |
| WO2022002432A3 (en) * | 2020-07-01 | 2022-03-03 | Sew-Eurodrive Gmbh & Co. Kg | Transmission with a shaft, at least one first bearing, a housing part, and a cover |
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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: 20140702 Termination date: 20190120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |