CN105971888A - Forced circulation pump with protective shaft sleeve - Google Patents
Forced circulation pump with protective shaft sleeve Download PDFInfo
- Publication number
- CN105971888A CN105971888A CN201610014420.4A CN201610014420A CN105971888A CN 105971888 A CN105971888 A CN 105971888A CN 201610014420 A CN201610014420 A CN 201610014420A CN 105971888 A CN105971888 A CN 105971888A
- Authority
- CN
- China
- Prior art keywords
- shaft sleeve
- pump
- sleeve
- protective
- protective 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
-
- 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
-
- 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
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/106—Shaft sealings 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
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/12—Shaft sealings using sealing-rings
- F04D29/126—Shaft sealings using sealing-rings especially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a forced circulation pump with a protective shaft sleeve. The pump comprises a bearing box, a pump cover and a pump body which are connected successively, wherein a main shaft successively passes through the bearing box, an inner hole of the pump cover and an inner hole of the pump body and stretches into the pump body; and the main shaft is connected to an impeller inside the pump body. The pump is characterized in that the protective shaft sleeve sleeves the main shaft; the left end of the protective shaft sleeve is in a static seal connection with the inner side end face of the impeller; the right end of the protective shaft sleeve stretches into the inner hole of the pump body; a mechanical seal shaft sleeve sleeves a matched section between the main shaft and the inner hole of the pump cover; clearance between the mechanical seal shaft sleeve and the inner hole of the pump cover is filled with a seal assembly; the left section of the mechanical seal shaft sleeve is inserted into the protective shaft sleeve and in a clearance fit with the protective shaft sleeve; and over one circle of O-shaped seal ring is disposed in clearance between the outer wall of the mechanical seal shaft sleeve and the inner wall of the protective shaft sleeve.
Description
Technical field
The present invention relates to a kind of circulating pump, be specifically related to the forced circulation pump of a kind of band protection axle sleeve.
Background technology
There is due to the medium of forced circulation transport pump the characteristics such as high temperature, larger specific gravity and deep-etching, and pump main shaft is it is generally required to higher-strength and comprehensive mechanical performance requirement, therefore main shaft is effectively protected by protective shaft sleeve to be designed with for forced circulation pump.Tradition protective shaft sleeve method for designing: (one) flatulence of heat type set mode, will inlay the mode of a corrosion-resistant axle sleeve outside main shaft, and the program is non-dismountable, and needs secondary operations, complex process；(2) use matched in clearance with axle, and protect with impeller and pump shaft sleeve formation end face seal respectively at end face.But due to the impact of medium temperature, main shaft can occur axial expansion, frequently result in end face seal and lost efficacy, then cause main shaft shielding failure.
Summary of the invention
For solving deficiency of the prior art, it is an object of the invention to provide the forced circulation pump of a kind of band protection axle sleeve.
The technical scheme that the present invention takes is:
A kind of forced circulation pump of band protection axle sleeve, including the bearing housing being sequentially connected with, pump cover and the pump housing, described main shaft sequentially passes through bearing housing, the endoporus of pump cover and the endoporus of the pump housing also stretch in the pump housing, main shaft is connected with the impeller in the pump housing, it is cased with protective shaft sleeve on described main shaft, the left end static seal of protective shaft sleeve is connected to impeller inner side end, the right-hand member of protective shaft sleeve stretches into pump housing endoporus, it is socketed with described in mechanical seal sleeve on described main shaft and pump cover inner hole section and is filled with black box between mechanical seal set and pump cover endoporus, with protective shaft sleeve matched in clearance in left section of insertion protective shaft sleeve of described mechanical seal sleeve, the O RunddichtringO that a circle is above it is provided with between the outer wall of mechanical seal sleeve and the inwall of protective shaft sleeve.
After taking above technical scheme, the invention have the benefit that
1. protective shaft sleeve and impeller end face are designed with static seal, use O as static seal, can effectively prevent medium contact main shaft from causing the corrosion of main shaft between protective shaft sleeve and mechanical seal sleeve；
2. axle sleeve and O contact site are designed with wear-resistant coating, it is ensured that axially wearability when displacement, increase the service life；Multilamellar O designs, it is achieved multiple protective；
3. leave certain interval in end face of shaft bush and protective shaft sleeve, can freely compensate the displacement that the axial expansion under main shaft high temperature causes, prevent protective shaft sleeve from interfering with mechanical seal sleeve.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the detailed description of the invention of the present invention is further described:
A kind of forced circulation pump of band protection axle sleeve; including the bearing housing 3 being sequentially connected with, pump cover 2, main shaft 4 pump housing 1 and impeller 9; described main shaft 4 sequentially passes through bearing housing 3, the endoporus of pump cover 2 and the endoporus of the pump housing 1 and stretches in the pump housing 1; main shaft 1 is connected with the impeller 9 in pump 1 body; it is cased with protective shaft sleeve 5 on described main shaft 1; the left end of protective shaft sleeve 5 is bowl-shape enlarging; bowl-shape enlarging static seal is connected to the end face at impeller 9 back; 5 right-hand members of protective shaft sleeve are provided with the cylindrical recesses caved in vertically, and the right-hand member of protective shaft sleeve 5 stretches into the pump housing 1 endoporus；Described main shaft 4 is socketed with mechanical seal sleeve 6 in pump cover 2 inner hole section, it is filled with black box 8 between described mechanical seal set 6 and pump cover 2 endoporus, in the cylindrical recesses of left section of insertion protective shaft sleeve 5 of described mechanical seal sleeve 6, mechanical seal sleeve 6 and the cylindrical recesses matched in clearance of protective shaft sleeve 5, it is provided with gap between the left side of mechanical seal sleeve 6 and the inner bottom surface of protective shaft sleeve 5 cylindrical recesses, between the outer wall of mechanical seal sleeve 6 and the inwall of protective shaft sleeve 5, is provided with the O RunddichtringO 7 that a circle is above.
Claims (1)
1. the forced circulation pump of a band protection axle sleeve, including the bearing housing being sequentially connected with, pump cover and the pump housing, described main shaft sequentially passes through bearing housing, the endoporus of pump cover and the endoporus of the pump housing also stretch in the pump housing, main shaft is connected with the impeller in the pump housing, it is characterized in that, it is cased with protective shaft sleeve on described main shaft, the left end static seal of protective shaft sleeve is connected to impeller inner side end, the right-hand member of protective shaft sleeve stretches into pump housing endoporus, it is socketed with mechanical seal sleeve in described main shaft and pump cover inner hole section, it is filled with black box between mechanical seal sleeve and pump cover endoporus, with protective shaft sleeve matched in clearance in left section of insertion protective shaft sleeve of described mechanical seal sleeve, the O RunddichtringO that a circle is above it is provided with between the outer wall of mechanical seal sleeve and the inwall of protective shaft sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610014420.4A CN105971888A (en) | 2016-01-11 | 2016-01-11 | Forced circulation pump with protective shaft sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610014420.4A CN105971888A (en) | 2016-01-11 | 2016-01-11 | Forced circulation pump with protective shaft sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105971888A true CN105971888A (en) | 2016-09-28 |
Family
ID=56988536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610014420.4A Pending CN105971888A (en) | 2016-01-11 | 2016-01-11 | Forced circulation pump with protective shaft sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105971888A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000220653A (en) * | 1999-02-03 | 2000-08-08 | Itt Mfg Enterp Inc | Device for mounting a certain member on rotating shaft |
| CN201110265Y (en) * | 2007-11-12 | 2008-09-03 | 江苏江风氟合金泵阀制造有限公司 | Steel fluorine forced circulation pump |
| CN201679725U (en) * | 2010-04-01 | 2010-12-22 | 陈登云 | Desulfurization pump |
| CN102606519A (en) * | 2012-03-27 | 2012-07-25 | 上海阿波罗机械股份有限公司 | Boric acid recirculation pump |
| CN202937503U (en) * | 2012-12-11 | 2013-05-15 | 上海水泵制造有限公司 | Axial suction impeller locknut device |
-
2016
- 2016-01-11 CN CN201610014420.4A patent/CN105971888A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000220653A (en) * | 1999-02-03 | 2000-08-08 | Itt Mfg Enterp Inc | Device for mounting a certain member on rotating shaft |
| CN201110265Y (en) * | 2007-11-12 | 2008-09-03 | 江苏江风氟合金泵阀制造有限公司 | Steel fluorine forced circulation pump |
| CN201679725U (en) * | 2010-04-01 | 2010-12-22 | 陈登云 | Desulfurization pump |
| CN102606519A (en) * | 2012-03-27 | 2012-07-25 | 上海阿波罗机械股份有限公司 | Boric acid recirculation pump |
| CN202937503U (en) * | 2012-12-11 | 2013-05-15 | 上海水泵制造有限公司 | Axial suction impeller locknut device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160928 |