CN2614284Y - Under liquid type pollution discharge pump lower bearing arrangement - Google Patents
Under liquid type pollution discharge pump lower bearing arrangement Download PDFInfo
- Publication number
- CN2614284Y CN2614284Y CN 03228097 CN03228097U CN2614284Y CN 2614284 Y CN2614284 Y CN 2614284Y CN 03228097 CN03228097 CN 03228097 CN 03228097 U CN03228097 U CN 03228097U CN 2614284 Y CN2614284 Y CN 2614284Y
- Authority
- CN
- China
- Prior art keywords
- pump cover
- lower bearing
- pollution discharge
- connecting base
- discharge pump
- 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
A submerged sewage pump lower bearing device is characterized in that a roller bearing inner race is arranged on the caudal end of a shaft, the seal between the roller bearing and impellers utilizes two mechanical seals cascade style, the first mechanical seal is fixed on the shaft between the impellers and a pump cover, the second mechanical seal is fixed on the shaft between the pump cover and a connecting seat, the position of the pump cover on which the mechanical seals are arranged is provided with a double helix rotating structure groove, a cavity is arranged between the connecting seat and the pump cover, an oil chamber with a certain amount of air is formed in the cavity, the connecting seat is sealed by an O sealing ring. The utility model is improved based on the existing submerged sewage pump lower bearing structure, the roller bearing carries a radial force and an axial force, the two mechanical seals cascade style installment is utilized to achieve double protection, the static seal is sealed by the O sealing ring, thereby the leakage problem is solved and the service life of the pump is greatly prolonged.
Description
Technical field
This improvement is the improvement to existing liquid following formula pollution discharge pump lower bearing structure.
Background technique
The lower bearing of existing liquid following formula pollution discharge pump adopts sliding bearing, axle high speed rotary in sliding bearing, and transmitting torque, the sliding bearing bearing radial force is because sliding bearing leans on the working medium of self to be lubricated flushing, so there is not sealing.Liquid following formula pollution discharge pump mainly is the occasion that is used for sewage effluent, and the solid granule that contains in the sewage is easy to denude sliding bearing, causes whole rotor part to turn round partially, and pump is easy to damage, and leakage loss is big, efficient is low.In the more abominable occasion of environment, working life is extremely short.Because the structure of pump itself is complicated, as adopt the lubricated flushing of external high pressure water sliding bearing, will increase user's user cost: uneconomical.
Summary of the invention
This follow-on purpose is achieved in that changing sliding bearing is rolling bearing 3, rolling bearing 3 inner rings are contained on the axle 2, the outer ring is contained in the bearing support position of connecting base 4, bearing gland 5 is fastening by bolt 6 and connecting base 4, compress rolling bearing 3 outer rings, rolling bearing 3 bearing radial forces and axial force; Twice mechanical seal 8,9 series connection forms are adopted in sealing between rolling bearing 3 and impeller 7, the first road mechanical seal 8 is fixed between impeller 7 and the pump cover 10, friction pair is corrosion-resistant cemented tungsten carbide/silicon carbide, the second road mechanical seal 9 is fixed between pump cover 10 and the connecting base 4, friction pair be graphite bright/Tungsten carbite, design double helical form rotational structure groove 13 on the position of pump cover 10 placement mechanical seals 8, can stop that wear particle enters closed chamber, operation is water-tight continuously to guarantee the first road mechanical seal 8, does not does not wear and tear; Between connecting base 4 and pump cover 10, be designed to a cavity, inject a certain amount of lubricant oil and form grease chamber 11, the oil Castor Oil also cools off mechanical seal 8,9, and can stop liquid to infiltrate into the additional security function of rolling bearing 3, in a certain amount of air that stays can prevent that the pressure in the grease chamber 10 from gathering rising; Rolling bearing 3 and axle 2 are isolated fully by twice mechanical seal 8,9, can not contact the medium that is transferred, and protection axle 2 is not corroded, and assurance rolling bearing 3 is established the capable life-span; Connecting base 4 static seals seal with O-ring seals 12.
The utility model is the improvement that existing liquid following formula pollution discharge pump lower bearing structure is carried out.Rolling bearing bearing radial force and axial force; Adopt twice mechanical seal tandem to install, realize duplicate protection.Static seal seals with O-ring seals, has solved leakage problem, has improved the working life of pump greatly.
Description of drawings
Accompanying drawing 1 is the utility model structural representation.
Accompanying drawing 2 is the utility model application state structural representations.
2,3 rolling bearings, 4 connecting bases, 5 bearing glands, 6 bolts, 7 impellers, 8 mechanical seals, 9 mechanical seals, 10 pump covers, 11 grease chambeies, 12 O-ring seals, 13 structure grooves.
Embodiment
The improvement of liquid following formula pollution discharge pump lower bearing equipment, rolling bearing 3 inner rings are contained on axle 2 tail ends, and the outer ring is contained in the bearing support position of connecting base 4, and bearing gland 5 is fastening with connecting base 4, compresses rolling bearing 3 outer rings; Twice mechanical seal 8,9 series connection forms are adopted in sealing between rolling bearing 3 and impeller 7, the first road mechanical seal 8 be fixed between impeller 7 and the pump cover 10 the axle 2 on, the second road mechanical seal 9 is fixed on the axle 2 between pump cover 10 and the connecting base 4, places at pump cover 10 on the position of mechanical seals 8 to have double helical form rotational structure groove 13.Between connecting base 4 and pump cover 10, be designed to a cavity, inject No. 10 oil in the cavity and form grease chambeies 11, in the air in certain amount stayed.Connecting base 4 adopts O-ring seals 12 sealings.
Claims (4)
1, a kind of liquid following formula pollution discharge pump lower bearing equipment is characterized in that rolling bearing (3) inner ring is contained on axle (2) tail end, and the outer ring is contained in the bearing support position of connecting base (4), and bearing gland (5) is fastening with connecting base (4), compresses rolling bearing (3) outer ring.
2, according to the described liquid following formula of claim 1 pollution discharge pump lower bearing equipment, it is characterized in that sealing employing twice mechanical seals (8), (9) series connection form between rolling bearing and impeller (7), the first road mechanical seal (8) is fixed on the axle (2) between impeller and the pump cover (10), the second road mechanical seal (9) is fixed on the axle (2) between pump cover and the connecting base, places at pump cover on the position of mechanical seal (8) to have double helical form rotational structure groove (13).
3, according to the described liquid following formula of claim 2 pollution discharge pump lower bearing equipment, it is characterized in that between connecting base (4) and pump cover (10), being designed to a cavity, inject lubricant oil in the cavity and form grease chamber (11), in the air in certain amount stayed.
4,, it is characterized in that connecting base (4) adopts O-ring seals (12) sealing according to the described liquid following formula of claim 3 pollution discharge pump lower bearing equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03228097 CN2614284Y (en) | 2003-01-09 | 2003-01-09 | Under liquid type pollution discharge pump lower bearing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03228097 CN2614284Y (en) | 2003-01-09 | 2003-01-09 | Under liquid type pollution discharge pump lower bearing arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2614284Y true CN2614284Y (en) | 2004-05-05 |
Family
ID=34247080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03228097 Expired - Fee Related CN2614284Y (en) | 2003-01-09 | 2003-01-09 | Under liquid type pollution discharge pump lower bearing arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2614284Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956718A (en) * | 2010-09-17 | 2011-01-26 | 朱善根 | Non-leaking submerged pump |
| CN104937278B (en) * | 2013-01-22 | 2017-03-08 | 金正浩 | Constant displacement pump |
| CN108953167A (en) * | 2018-09-12 | 2018-12-07 | 泰州泰东泵业有限公司 | submerged pump |
| CN108953215A (en) * | 2018-09-12 | 2018-12-07 | 泰州泰东泵业有限公司 | Pump multi-level gland seal device |
-
2003
- 2003-01-09 CN CN 03228097 patent/CN2614284Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956718A (en) * | 2010-09-17 | 2011-01-26 | 朱善根 | Non-leaking submerged pump |
| CN104937278B (en) * | 2013-01-22 | 2017-03-08 | 金正浩 | Constant displacement pump |
| CN108953167A (en) * | 2018-09-12 | 2018-12-07 | 泰州泰东泵业有限公司 | submerged pump |
| CN108953215A (en) * | 2018-09-12 | 2018-12-07 | 泰州泰东泵业有限公司 | Pump multi-level gland seal device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |