CN201547002U - Bearing seal protective device of liquid pump - Google Patents
Bearing seal protective device of liquid pump Download PDFInfo
- Publication number
- CN201547002U CN201547002U CN2009202266875U CN200920226687U CN201547002U CN 201547002 U CN201547002 U CN 201547002U CN 2009202266875 U CN2009202266875 U CN 2009202266875U CN 200920226687 U CN200920226687 U CN 200920226687U CN 201547002 U CN201547002 U CN 201547002U
- Authority
- CN
- China
- Prior art keywords
- bearing
- bearing seal
- liquid
- impeller
- main shaft
- 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.)
- Expired - Fee Related
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a bearing seal protective device of a liquid pump, which relates to a bearing seal protective device for pumps. A bearing body is arranged inside a pump body, a bearing is arranged inside the bearing body, a main shaft is arranged inside the bearing, and an impeller arranged at one end of the main shaft. The bearing body at one side of the impeller is provided with a bearing seal device, and a liquid baffle blade is arranged on the main shaft between the bearing seal device and the impeller. Because the liquid baffle blade is arranged between the bearing seal device and the impeller, liquid media enter between the impeller and the bearing seal device, and are stopped by the liquid baffle blade, thereby preventing the liquid media from directly impacting to the bearing seal device. The liquid baffle blade rotates with the main shaft to generate centrifugal force, and negative pressure is generated on the bearing seal device to prevent the liquid media from compressing the bearing seal device. The bearing seal protective device of the liquid pump has the advantages of simple structure, low manufacture cost, small power dissipation and high efficiency, and is suitable for various liquid pumps.
Description
Technical field
The present invention relates to pump class bearing seal protecting device, is a kind of liquid pump bearing seal protective gear specifically.
Background technique
We know; existing liquid pump bearing seal protective gear; be in the pump housing, to be provided with bearing support; be provided with bearing in the bearing support; be provided with main shaft in the bearing, main shaft one end is provided with impeller, and the bearing support of impeller one side is provided with associated sealing arrangement for bearings; damage for making associated sealing arrangement for bearings avoid hydraulic shock, be provided with sub-propeller between associated sealing arrangement for bearings and impeller.This liquid pump bearing seal protective gear, owing to be provided with sub-propeller between associated sealing arrangement for bearings and impeller, complex structure, the manufacture cost height, power dissipation is big, and efficient is low.
Summary of the invention
The technical problem that the present invention solves is, solves complex structure, the manufacture cost height, and power dissipation is big, and inefficient problem provides a kind of simple in structure, low cost of manufacture, power dissipation is little, the liquid pump bearing seal protective gear that efficient is high.
Technological scheme of the present invention is, is provided with bearing support in the pump housing, is provided with bearing in the bearing support, be provided with main shaft in the bearing, main shaft one end is provided with impeller, and the bearing support of impeller one side is provided with associated sealing arrangement for bearings, the main structure characteristics are that the main shaft between associated sealing arrangement for bearings and the impeller is provided with retaining liquid sheet.
The invention has the beneficial effects as follows that because the main shaft between associated sealing arrangement for bearings and the impeller is provided with retaining liquid sheet, liquid medium enters between impeller and the associated sealing arrangement for bearings, is kept off the liquid sheet to stop, makes associated sealing arrangement for bearings avoid the direct impact of liquid medium; Retaining liquid sheet rotates with main shaft, produces centrifugal force, and the associated sealing arrangement for bearings place produces negative pressure, makes associated sealing arrangement for bearings avoid the extruding of liquid medium, and is simple in structure, low cost of manufacture, and power dissipation is little, the efficient height.The present invention is applicable to various liquid pumps.
Description of drawings
Accompanying drawing is a kind of structural representation of the present invention, also is a kind of embodiment's schematic representation.
Mode of execution
Liquid pump bearing seal protective gear as shown in the figure, be provided with bearing support 6 in the pump housing 5, be provided with bearing 4 in the bearing support 6, be provided with main shaft 7 in the bearing 4, main shaft 7 one ends are provided with impeller 1, and the bearing support 6 of impeller 1 one sides is provided with associated sealing arrangement for bearings 3, main shaft between associated sealing arrangement for bearings 3 and the impeller 1 is provided with retaining liquid sheet 2, liquid medium enters between impeller 1 and the associated sealing arrangement for bearings 3, is kept off liquid sheet 2 to stop, makes associated sealing arrangement for bearings 3 avoid the direct impact of liquid medium; Retaining liquid sheet 2 rotates with main shaft 7, produces centrifugal force, and associated sealing arrangement for bearings 3 places produce negative pressure, make associated sealing arrangement for bearings 3 avoid the extruding of liquid medium, and are simple in structure, low cost of manufacture, and power dissipation is little, the efficient height.
Claims (1)
1. liquid pump bearing seal protective gear; be provided with bearing support in the pump housing; be provided with bearing in the bearing support; be provided with main shaft in the bearing; main shaft one end is provided with impeller; the bearing support of impeller one side is provided with associated sealing arrangement for bearings, it is characterized in that: the main shaft between associated sealing arrangement for bearings and the impeller is provided with retaining liquid sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202266875U CN201547002U (en) | 2009-09-13 | 2009-09-13 | Bearing seal protective device of liquid pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202266875U CN201547002U (en) | 2009-09-13 | 2009-09-13 | Bearing seal protective device of liquid pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201547002U true CN201547002U (en) | 2010-08-11 |
Family
ID=42602174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202266875U Expired - Fee Related CN201547002U (en) | 2009-09-13 | 2009-09-13 | Bearing seal protective device of liquid pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201547002U (en) |
-
2009
- 2009-09-13 CN CN2009202266875U patent/CN201547002U/en not_active Expired - Fee Related
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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: 20100811 Termination date: 20130913 |