CN108916107B - Water-cooled bearing component for pump - Google Patents
Water-cooled bearing component for pump Download PDFInfo
- Publication number
- CN108916107B CN108916107B CN201810579717.4A CN201810579717A CN108916107B CN 108916107 B CN108916107 B CN 108916107B CN 201810579717 A CN201810579717 A CN 201810579717A CN 108916107 B CN108916107 B CN 108916107B
- Authority
- CN
- China
- Prior art keywords
- bearing
- shaft
- water
- bearing body
- component
- 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.)
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Links
- 239000000498 cooling water Substances 0.000 claims abstract description 24
- 238000005096 rolling process Methods 0.000 claims description 36
- 239000003921 oil Substances 0.000 claims description 32
- 238000001816 cooling Methods 0.000 claims description 24
- 239000010687 lubricating oil Substances 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 238000005266 casting Methods 0.000 abstract description 7
- 238000001514 detection method Methods 0.000 abstract description 5
- 230000005855 radiation Effects 0.000 abstract description 5
- 230000017525 heat dissipation Effects 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/0467—Spherical bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/0462—Bearing cartridges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/06—Lubrication
- F04D29/061—Lubrication especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
- F04D29/588—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps cooling or heating the machine
Abstract
The invention discloses a water-cooled bearing component for a pump, which belongs to a bearing component of a horizontal centrifugal pump, and has the advantages of high casting process requirements, difficult flaw detection, high processing cost, higher rejection rate and poorer heat radiation capability caused by integral casting of a cooling water cavity and a bearing body of the existing water-cooled bearing component.
Description
Technical Field
The invention belongs to a bearing component of a horizontal centrifugal pump, and particularly relates to a water-cooled bearing component for a pump.
Background
The bearing is the basis of guaranteeing the safe and continuous operation of the centrifugal pump. To ensure the service life of the bearing, it is necessary to design excellent bearing components. Most of the horizontal centrifugal pumps are oil lubricated, and an air cooling or air cooling mode is adopted. However, in the case of strict environmental requirements, high-temperature medium delivery, high shaft power, high heat dissipation requirements, etc., air cooling and air cooling will not meet the requirements. In this case, in order to control the bearing temperature, a water cooling mode is required to perform effective heat dissipation.
The water-cooled bearing part at the present stage mostly adopts a structure in which a cooling water cavity and a bearing body are integrally cast. The structure is complex in casting, high in process requirement, difficult in flaw detection, high in processing cost, high in rejection rate and poor in heat dissipation capability.
Disclosure of Invention
The invention aims to solve the technical problems and the technical task of solving the defects of high casting process requirement, difficult flaw detection and inspection, high processing cost, higher rejection rate, poor heat radiation capability and the like caused by integral casting of a cooling water cavity and a bearing body of the traditional water-cooled bearing part, and provides the water-cooled bearing part for the pump, which has the advantages of simple structure, easy casting, convenient processing, simple disassembly and assembly, and good heat radiation capability.
In order to achieve the above object, the water-cooled bearing component for a pump of the present invention comprises a bearing body, a bearing end cover, a rolling bearing cover and a shaft, wherein the bearing body is provided with an inner cavity for storing lubricating oil, the bearing end cover is assembled at one end of the bearing body, and the rolling bearing cover is assembled at the other end of the bearing body, and the water-cooled bearing component is characterized in that:
the shaft is transversely arranged, one end of the shaft penetrates through the bearing end cover and extends to the inner cavity, and a bearing bush part and a rolling bearing are assembled on one section of the inner cavity;
the bearing bush component is adjacent to the bearing end cover, is positioned on the bearing body and is sleeved on the shaft;
the inner ring of the rolling bearing is sleeved on the shaft and axially pressed, and the outer ring of the rolling bearing is axially pressed on the bearing body by the rolling bearing cover;
the bottom of the bearing body is provided with a water cooler which is used for being immersed in lubricating oil, the water cooler is provided with a cooling pipe, two ends of the cooling pipe are respectively provided with a cooling water inlet and a cooling water outlet, and the cooling water inlet and the cooling water outlet are positioned outside the bearing body.
As a preferable technical means: the bearing body is assembled by an upper bearing body and a lower bearing body, and the joint surface of the upper bearing body and the lower bearing body is a horizontal plane where the central line of the shaft is positioned.
As a preferable technical means: the bearing bush component is provided with a slit along the cross section direction, the shaft is sleeved with a first oil slinger, the upper part of the first oil slinger is positioned in the slit, and the lower part of the first oil slinger is used for being immersed in lubricating oil.
As a preferable technical means: the bearing bush component is positioned on the bearing body through a pin.
As a preferable technical means: the inner ring of the rolling bearing is pressed on a shaft shoulder on the shaft by a stop sleeve and a nut, the stop sleeve is sleeved on the shaft, the nut is connected on the shaft through threads, the stop sleeve is positioned between the nut and the inner ring of the rolling bearing, the nut is fixed by a stop washer in a positioning mode, and the stop washer is sleeved on the shaft and pressed between the nut and the stop sleeve by the nut.
As a preferable technical means: an adjusting pad sleeved on the shaft is arranged between the inner ring of the rolling bearing and the shaft shoulder.
As a preferable technical means: the second oil slinger is sleeved on the baffle sleeve, and the lower part of the second oil slinger is used for being immersed in lubricating oil.
As a preferable technical means: the rolling bearing is two angular contact ball bearings, the two angular contact ball bearings are installed back to back, and the outer sides of the two angular contact ball bearings surround the clamping ring to be integrally fixed.
As a preferable technical means: an isolator is arranged between the shaft and the bearing end cover.
As a preferable technical means: the outer surface of the bearing body is cast with cooling fins, and annular cooling fins are distributed on the cooling pipe.
According to the horizontal centrifugal pump, the water cooler which is used for being immersed in lubricating oil is arranged at the bottom of the bearing body, so that the cooling water inlet and the cooling water outlet are positioned outside the bearing body, a cooling water cavity is not required to be cast when the bearing body is cast, and the horizontal centrifugal pump is simple in structure, easy to cast, convenient to process, convenient to assemble and disassemble, good in heat dissipation capability, capable of being used for the horizontal centrifugal pump which is used under the conditions of strict environmental requirements, high-temperature medium conveying, high shaft power, high heat dissipation requirements and the like, and capable of guaranteeing the service life of the pump bearing.
Drawings
FIG. 1 is a schematic cross-sectional view of a water-cooled bearing component for a pump according to the present invention;
FIG. 2 is a schematic view of the structure of one end face of the water-cooled bearing component for a pump of the present invention;
FIG. 3 is a schematic diagram of a water cooler of the water cooled bearing assembly for a pump of the present invention;
the reference numerals in the figures illustrate: 1-isolator, 2-shaft, 3-air filter, 4-pin, 5-bushing component, 6-upper bearing body, 7-rolling bearing, 8-clamping ring, 9-sleeve, 10-stop washer, 11-nut, 12-rolling bearing cap, 13-bearing end cap, 14-lower bearing body, 15-first oil slinger, 16-water cooler, 17-adjusting pad, 18-oil drain valve, 19-second oil slinger, 20-oil cup, 21-oil gauge, 22-oil level gauge joint, 23-cooling water inlet, 24-cooling water outlet, 25-cooling pipe, 26-cooling plate, 27-mounting plate.
Detailed Description
The invention is further described below with reference to the drawings.
The water-cooled bearing component for the pump as shown in fig. 1-2 comprises a bearing body, a bearing end cover 13, a rolling bearing cover 12 and a shaft 2, wherein the bearing body is provided with an inner cavity for storing lubricating oil, the bearing body is formed by assembling an upper bearing body 6 and a lower bearing body 14, the joint surface of the upper bearing body 6 and the lower bearing body 14 is a horizontal plane where the central line of the shaft 2 is positioned, the bearing end cover 13 is assembled at one end of the bearing body, and the rolling bearing cover 12 is assembled at the other end of the bearing body.
The shaft 2 is transversely arranged, one end of the shaft extends into the inner cavity through the bearing end cover 13, and the shaft 2 is arranged on one section of the inner cavity and is provided with the bearing bush part 5 and the rolling bearing 7.
The bearing bush part 5 is adjacent to the bearing end cover 13, the bearing bush part 5 is positioned on the bearing body through the pin 4 and sleeved on the shaft 2, the bearing bush part 5 consists of an upper semicircular bearing bush and a lower semicircular bearing bush, the upper bearing bush is assembled on the upper bearing body, and the lower bearing bush is assembled on the lower bearing body.
The inner ring of the rolling bearing 7 is sleeved on the shaft 2 and is axially pressed on a shaft shoulder on the shaft by the stop sleeve 9 and the nut 11, the stop sleeve 9 is sleeved on the shaft 2, the nut 11 is connected on the shaft 2 through threads, the stop sleeve 9 is positioned between the nut 11 and the inner ring of the rolling bearing 7, the nut 11 is fixedly positioned by the stop washer 10, the stop washer 10 is sleeved on the shaft and is pressed between the nut and the stop sleeve by the nut, and in order to prevent the stop washer and the nut from rotating, the stop washer is embedded in grooves on the shaft and the nut through radial protruding positioning sheets; the outer ring of the rolling bearing 7 is axially pressed against the bearing body by the rolling bearing cap.
The bearing bush component is used for bearing the shaft from the radial direction, and the rolling bearing is used for axially supporting the shaft.
The bottom of the bearing body is provided with a water cooler 16 immersed in lubricating oil, the water cooler 16 is provided with a cooling pipe 25, two ends of the cooling pipe 25 are respectively provided with a cooling water inlet 23 and a cooling water outlet 24, and the cooling water inlet 23 and the cooling water outlet 24 are positioned outside the bearing body and used for circulating external cooling water. The water cooler 16 is fully arranged in the lubricating oil cavity to cool and dissipate heat of the lubricating oil in the oil cavity. The illustrated cooling tube 25 is U-shaped to provide adequate cooling of the bearing components. The cooling water inlet 23 and the cooling water outlet 24 of the water cooler 16 can be interchanged according to the field connection pipe requirement so as to facilitate the distributed installation of the cooling water connection pipes.
The bearing bush part 5 is provided with a slit along the cross section direction, the shaft 2 is sleeved with a first oil slinger 15, the upper part of the first oil slinger 15 is positioned in the slit, the lower part of the first oil slinger 15 is used for being immersed in lubricating oil, and the lubricating oil is driven to effectively lubricate and cool the bearing bush part and the rolling bearing during operation.
An adjusting pad 17 sleeved on the shaft is arranged between the inner ring and the shaft shoulder of the rolling bearing 7, and the thickness of the adjusting pad is adjusted to conduct flow passage centering adjustment on the horizontal centrifugal pump rotor. Copper pads are arranged between the inner side of the rolling bearing cover 12 and the bearing body, and the bearing play of the rolling bearing can be adjusted by increasing or decreasing the number of the copper pads.
The second oil slinger 19 is sleeved on the baffle sleeve 9, and the lower part of the second oil slinger is used for being immersed in lubricating oil.
The rolling bearing 7 is two angular contact ball bearings, the two angular contact ball bearings are installed back to back, and the outer sides of the two angular contact ball bearings encircle the clamping ring 8 to be integrally fixed.
An isolator 1 is arranged between the shaft 2 and the bearing end cover 13.
The outer surface of the bearing body is cast with cooling fins to ensure the bearing to sufficiently dissipate heat, and annular cooling fins 26 are distributed on the cooling tube.
The upper bearing body is provided with an air filter 3, the lower bearing body 14 is provided with an oil drain valve 18, meanwhile, the outer side of the lower bearing body 14 is provided with an oil level gauge 21, the condition of lubricating oil in bearing parts can be observed at any time through the oil level gauge, and an oil cup 20 is arranged through an oil level gauge connector 22, and the oil cup 20 can be used for filling oil for the bearing parts.
O-ring seals are adopted between the upper bearing body 6 and the air filter 3, between the bearing body and the bearing end cover 13 and between the bearing body and the rolling bearing cover 12. The lower bearing body 14 is sealed with a gasket between the mounting plate 27 of the water cooler 16. A screw thread seal is used between the lower bearing body 14 and the oil drain valve 18.
Meters such as vibration detection, temperature detection and the like can be arranged on the upper bearing body 6 and the lower bearing body 14 according to requirements so as to monitor the pump bearings in real time.
The horizontal centrifugal pump has the advantages of simple structure, easy casting, convenient processing, simple disassembly and assembly and good heat radiation capability, can be used for horizontal centrifugal pumps used under the conditions of strict environmental requirements, high-temperature medium conveying, high shaft power, high heat radiation requirements and the like, and ensures the service life of pump bearings.
The specific embodiments described herein are offered by way of example only. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. The water-cooled bearing component for the pump comprises a bearing body, a bearing end cover (13), a rolling bearing cover (12) and a shaft (2), wherein the bearing body is provided with an inner cavity for storing lubricating oil, the bearing end cover (13) is assembled at one end of the bearing body, and the rolling bearing cover (12) is assembled at the other end of the bearing body, and is characterized in that:
the shaft (2) is transversely arranged, one end of the shaft extends into the inner cavity through the bearing end cover (13), and the shaft (2) is positioned on one section of the inner cavity and is provided with a bearing bush component (5) and a rolling bearing (7);
the bearing bush component (5) is adjacent to the bearing end cover (13), and the bearing bush component (5) is positioned on the bearing body and sleeved on the shaft (2);
the inner ring of the rolling bearing (7) is sleeved on the shaft (2) and is axially pressed, and the outer ring of the rolling bearing (7) is axially pressed on the bearing body by the rolling bearing cover (12);
the bottom of the bearing body is provided with a water cooler (16) which is immersed in lubricating oil, the water cooler (16) is provided with a cooling pipe (25), two ends of the cooling pipe (25) are respectively provided with a cooling water inlet (23) and a cooling water outlet (24), and the cooling water inlet (23) and the cooling water outlet (24) are positioned outside the bearing body.
2. The water-cooled bearing component for a pump according to claim 1, characterized in that: the bearing body is formed by assembling an upper bearing body (6) and a lower bearing body (14), and the joint surface of the upper bearing body and the lower bearing body is a horizontal plane where the central line of the shaft (2) is located.
3. The water-cooled bearing component for a pump according to claim 1, characterized in that: the bearing bush component (5) is provided with a slit along the cross section direction, the shaft is sleeved with a first oil slinger (15), the upper part of the first oil slinger (15) is positioned in the slit, and the lower part of the first oil slinger is used for being immersed in lubricating oil.
4. The water-cooled bearing component for a pump according to claim 1, characterized in that: the bearing bush part (5) is positioned on the bearing body through a pin (4).
5. The water-cooled bearing component for a pump according to claim 1, characterized in that: the inner ring of the rolling bearing (7) is tightly pressed on a shaft shoulder on the shaft by a stop sleeve (9) and a nut (11), the stop sleeve (9) is sleeved on the shaft (2), the nut (11) is connected on the shaft (2) through threads, the stop sleeve (9) is positioned between the nut (11) and the inner ring of the rolling bearing (7), the nut (11) is fixedly positioned by a stop washer (10), and the stop washer (10) is sleeved on the shaft (2) and tightly pressed between the nut (11) and the stop sleeve by the nut (11).
6. The water-cooled bearing component for a pump according to claim 5, characterized in that: an adjusting pad (17) sleeved on the shaft is arranged between the inner ring of the rolling bearing (7) and the shaft shoulder.
7. The water-cooled bearing component for a pump according to claim 5, characterized in that: the oil retainer (9) is sleeved with a second oil slinger (19), and the lower part of the second oil slinger (19) is used for being immersed in lubricating oil.
8. The water-cooled bearing component for a pump according to claim 1, characterized in that: the rolling bearing (7) is two angular contact ball bearings, the two angular contact ball bearings are installed back to back, and the outer sides of the two angular contact ball bearings surround the clamping ring (8) to be integrally fixed.
9. The water-cooled bearing component for a pump according to claim 1, characterized in that: an isolator (1) is arranged between the shaft (2) and the bearing end cover (13).
10. The water-cooled bearing component for a pump according to claim 1, characterized in that: the outer surface of the bearing body is cast with cooling fins, and annular cooling fins (26) are distributed on the cooling pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810579717.4A CN108916107B (en) | 2018-06-07 | 2018-06-07 | Water-cooled bearing component for pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810579717.4A CN108916107B (en) | 2018-06-07 | 2018-06-07 | Water-cooled bearing component for pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108916107A CN108916107A (en) | 2018-11-30 |
| CN108916107B true CN108916107B (en) | 2023-12-08 |
Family
ID=64418969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810579717.4A Active CN108916107B (en) | 2018-06-07 | 2018-06-07 | Water-cooled bearing component for pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108916107B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595194A (en) * | 2018-12-08 | 2019-04-09 | 烟台龙港泵业股份有限公司 | A kind of bearing housing of the pump with disk injector |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10120409A1 (en) * | 2001-04-26 | 2002-11-07 | Sero Pumpenfabrik Gmbh & Co Kg | Circulating pump has side channel impeller installed in side channel section between inlet housing and outlet housing with pressure channel, and has cooling pipe with cooling fins around pump shaft |
| JP2008072810A (en) * | 2006-09-13 | 2008-03-27 | Ntn Corp | Magnetic bearing arrangement integrated with motor |
| JP2011038605A (en) * | 2009-08-12 | 2011-02-24 | Mitsubishi Heavy Ind Ltd | Bearing device and rotary machine |
| CN202065223U (en) * | 2011-05-18 | 2011-12-07 | 昆明嘉和科技股份有限公司 | Bearing body for high-temperature, high-pressure and corrosion-resistant pump |
| CN202900792U (en) * | 2012-10-12 | 2013-04-24 | 上海水泵制造有限公司 | Single level double suction split-case centrifugal pump |
| CN208252407U (en) * | 2018-06-07 | 2018-12-18 | 浙江佳力科技股份有限公司 | Centrifugal pump of horizontal axis water-cooled bearing component |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005030424A1 (en) * | 2005-06-30 | 2007-01-04 | Geräte- und Pumpenbau GmbH Dr. Eugen Schmidt | Arrangement and method for arranging a pump bearing in / on coolant pump housings made of plastic |
-
2018
- 2018-06-07 CN CN201810579717.4A patent/CN108916107B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10120409A1 (en) * | 2001-04-26 | 2002-11-07 | Sero Pumpenfabrik Gmbh & Co Kg | Circulating pump has side channel impeller installed in side channel section between inlet housing and outlet housing with pressure channel, and has cooling pipe with cooling fins around pump shaft |
| JP2008072810A (en) * | 2006-09-13 | 2008-03-27 | Ntn Corp | Magnetic bearing arrangement integrated with motor |
| JP2011038605A (en) * | 2009-08-12 | 2011-02-24 | Mitsubishi Heavy Ind Ltd | Bearing device and rotary machine |
| CN202065223U (en) * | 2011-05-18 | 2011-12-07 | 昆明嘉和科技股份有限公司 | Bearing body for high-temperature, high-pressure and corrosion-resistant pump |
| CN202900792U (en) * | 2012-10-12 | 2013-04-24 | 上海水泵制造有限公司 | Single level double suction split-case centrifugal pump |
| CN208252407U (en) * | 2018-06-07 | 2018-12-18 | 浙江佳力科技股份有限公司 | Centrifugal pump of horizontal axis water-cooled bearing component |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108916107A (en) | 2018-11-30 |
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