CN201137583Y - Vertical type water pump possessing guard tube-type clear water lubrication bearing structure - Google Patents
Vertical type water pump possessing guard tube-type clear water lubrication bearing structure Download PDFInfo
- Publication number
- CN201137583Y CN201137583Y CNU2007200771048U CN200720077104U CN201137583Y CN 201137583 Y CN201137583 Y CN 201137583Y CN U2007200771048 U CNU2007200771048 U CN U2007200771048U CN 200720077104 U CN200720077104 U CN 200720077104U CN 201137583 Y CN201137583 Y CN 201137583Y
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- China
- Prior art keywords
- pump
- water
- bearing
- protective pipe
- pump shaft
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- Expired - Fee Related
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Abstract
The utility model relates to a vertical water pump with a protective pipe type clearwater lubrication bearing structure, which comprises a pump body, a pump shaft and an impeller, wherein the pump shaft is arranged in the pump body, the impeller is arranged on the pump shaft, the back portion of the impeller is equipped with a water starting taper, the upper portion of the pump body is equipped with a pump cover, a bearing is arranged in the pump body, the external circumference of the pump shaft is sleeved with a protective pipe, the protective pipe passes through the bearing, the protective pipe is extended outside the pump cover, and a dynamic water sealing device is arranged between the protective pipe outside the pump cover and the pump shaft. The utility model uses a protective pipe type clearwater lubrication bearing, water body silt is capable of being prevented from being pumped into the bearing, the utility model not only has the advantages of low investment and convenient maintenance, but also has excellent reliability and long service life. The water quality, the pressure and the flow rate of lubrication clear water are capable of being guaranteed, thereby increasing the installing quality, reducing the workload of the bearing, and guaranteeing the water-sealing performance between the protective pipe and the pump shaft. The protective pipe type clearwater lubrication bearing has a value of application in a low lift large vertical water pump.
Description
Technical field:
The utility model relates to mechanical field, relates in particular to pump, particularly a kind of vertical water pump with pillar formula clear water lubricating bearings structure.
Background technique:
The guide bearing of large-scale vertical water pump adopts rubber material the earliest, utilizes river lubricated.Along with water pump continues to large scale development, the uneven radial force of rotating part increases thereupon, although adopted other materials such as the better polyamine ester of wear-resisting property afterwards again, and adopt clear water lubricated, but effect is bad, bearing material very easily weares and teares, and service life has only hundreds of hours during the quality of river water difference.Traditional lubricated guide bearing of sheet rubber sealing clear water compares serious situation for fear of the lubricated sand erosion of river, establish filtered water tank at the bearing top, it is lubricated to be provided with the pressure clear water, but this structure is still undesirable in high concentration of sediment pumping plant effect, silt in the pump housing in the river still can enter bearing, destroy axle bush and axle journal, its reason be water body by the bottom after the stator concentrated flow goes out, the flow section sudden enlargement, form the recirculating zone at the filtered water tank top, water velocity is slowed down, and the silt gravitate deposits in the water, and fall into filtered water tank and bearing play through the sheet rubber seal clearance, play the abrasive material effect and damage bearing.In the large-scale vertical water pump, generally adopt oil lubrication Babbitt guide bearing in the prior art, increase its carrying abrasion-resistance.But it is unreliable that oil bearing complex structure, cost height, fatal shortcoming are exactly following water sealing device, and often inefficacy is leaked in a large number, and it is impaired to cause the bearing immersion.
Summary of the invention:
The purpose of this utility model provides a kind of vertical water pump with pillar formula clear water lubricating bearings structure, and described this vertical water pump with pillar formula clear water lubricating bearings structure will solve the insecure technical problem of water sealing device in the medium-and-large-sized vertical water pump of prior art.
This vertical water pump with pillar formula clear water lubricating bearings structure of the present utility model is made of the pump housing, pump shaft and impeller, described pump shaft is arranged in the pump housing, described impeller is arranged on the pump shaft, and the impeller rear portion is provided with water guide cone, and pump housing top is provided with pump cover, be provided with bearing in the pump housing, be arranged with pillar on the pump shaft excircle, described pillar passes described bearing, wherein, described pillar extends to outside the pump cover, is provided with moving water sealing device between pillar that pump cover is outer and the pump shaft.
Further, be provided with the hydrostatic seal arrangement between pillar below the described moving water sealing device and the pump shaft.
Working principle of the present utility model is: the utility model has kept in the prior art water guide cone behind the diffuser and pump shaft pillar in the oil bearing water pump, outside the pump housing, set up moving water sealing device between pillar upper end and the pump shaft, be provided with clear water by pre-pipe laying or pillar top Pilot bearing in the blade, pressure is greater than water body in the pump, clear water flows downward along the bearing inner wall tank, forms lubricated.This structure is compared with traditional sheet rubber sealing clear water lubricating structure, and bearing top fully and water body is isolated in the pump leaves, and can guarantee that silt can not enter bearing in the river, makes bearing that good lubricating condition be arranged.
The utility model and prior art contrast, and its effect is actively with tangible.The utility model has adopted pillar formula clear water lubricating bearings, can stop pump to take out diversion body silt and enter bearing, not only has less investment, advantage easy to maintenance, and good reliability, long working life.Can guarantee lubricated clear water water quality, pressure and flow, improve installation quality, reduce bearing working load, guarantee the water seal characteristic between pillar and the pump shaft.Pillar formula clear water lubricating bearings has application value in low lift large-scale vertical water pump.
Description of drawings:
Fig. 1 is the structural representation with vertical water pump of pillar formula clear water lubricating bearings structure of the present utility model.
Embodiment:
As shown in Figure 1, vertical water pump with pillar formula clear water lubricating bearings structure of the present utility model is made of the pump housing, pump shaft 1 and impeller 2, described pump shaft 1 is arranged in the pump housing, described impeller 2 is arranged on the pump shaft 1, impeller 2 rear portions are provided with water guide cone 3, pump housing top is provided with pump cover 4, be provided with bearing 5 in the pump housing, be arranged with pillar 6 on pump shaft 1 excircle, described pillar 6 passes described bearing 5, wherein, described pillar 6 extends to outside the pump cover 4, is provided with moving water sealing device 7 between pillar 6 outside the pump cover 4 and the pump shaft 1.
Further, be provided with hydrostatic seal arrangement 8 between the pillar 6 of described moving water sealing device 7 belows and the pump shaft 1.
The working procedure of present embodiment is: the inlet of the pump housing is arranged in the water inlet flow channel 9, when impeller 2 rotates, be provided with clear water by pre-pipe laying or pillar 6 tops in the blade to bearing 5, pressure is greater than water body in the pump, clear water flows downward along bearing 5 inwall tanks, forms lubricated.This structure is compared with traditional sheet rubber sealing clear water lubricating structure, and bearing 5 tops fully and water body is isolated in the pump leaves, and can guarantee that silt can not enter bearing 5 in the river, makes bearing 5 that good lubricating condition be arranged.
Claims (2)
1. vertical water pump with pillar formula clear water lubricating bearings structure, constitute by the pump housing, pump shaft and impeller, described pump shaft is arranged in the pump housing, and described impeller is arranged on the pump shaft, and the impeller rear portion is provided with water guide cone, pump housing top is provided with pump cover, be provided with bearing in the pump housing, be arranged with pillar on the pump shaft excircle, described pillar passes described bearing, it is characterized in that: described pillar extends to outside the pump cover, is provided with moving water sealing device between pillar that pump cover is outer and the pump shaft.
2. the vertical water pump with pillar formula clear water lubricating bearings structure as claimed in claim 1 is characterized in that: be provided with the hydrostatic seal arrangement between the pillar of described moving water sealing device below and the pump shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200771048U CN201137583Y (en) | 2007-12-24 | 2007-12-24 | Vertical type water pump possessing guard tube-type clear water lubrication bearing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200771048U CN201137583Y (en) | 2007-12-24 | 2007-12-24 | Vertical type water pump possessing guard tube-type clear water lubrication bearing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201137583Y true CN201137583Y (en) | 2008-10-22 |
Family
ID=40038270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200771048U Expired - Fee Related CN201137583Y (en) | 2007-12-24 | 2007-12-24 | Vertical type water pump possessing guard tube-type clear water lubrication bearing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201137583Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251180A (en) * | 2013-06-26 | 2014-12-31 | 黑龙江双锅锅炉股份有限公司 | Sewage siphoning generating set |
| CN108223396A (en) * | 2017-12-11 | 2018-06-29 | 中国水利水电科学研究院 | A kind of high-precision water pump bath scaled model experimental device |
| CN108223396B (en) * | 2017-12-11 | 2024-04-26 | 中国水利水电科学研究院 | High-precision water pump model experimental device |
-
2007
- 2007-12-24 CN CNU2007200771048U patent/CN201137583Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251180A (en) * | 2013-06-26 | 2014-12-31 | 黑龙江双锅锅炉股份有限公司 | Sewage siphoning generating set |
| CN108223396A (en) * | 2017-12-11 | 2018-06-29 | 中国水利水电科学研究院 | A kind of high-precision water pump bath scaled model experimental device |
| CN108223396B (en) * | 2017-12-11 | 2024-04-26 | 中国水利水电科学研究院 | High-precision water pump model experimental device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081022 Termination date: 20100125 |