CN2771520Y - Bottom bearing block and lean oil pump device for helicoidal pump - Google Patents
Bottom bearing block and lean oil pump device for helicoidal pump Download PDFInfo
- Publication number
- CN2771520Y CN2771520Y CN 200420054652 CN200420054652U CN2771520Y CN 2771520 Y CN2771520 Y CN 2771520Y CN 200420054652 CN200420054652 CN 200420054652 CN 200420054652 U CN200420054652 U CN 200420054652U CN 2771520 Y CN2771520 Y CN 2771520Y
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- CN
- China
- Prior art keywords
- tail
- oil pump
- bearing shell
- pump
- bearing
- 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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Abstract
The utility model relates to a lower bearing block and a lean oil pump device for helicoidal pump for a sewage lifting device for supplying and draining water. The lower bearing block is composed of a tail cover, a tail bearing outer shell, a joint bearing, a sealing ring holder, two double-lip encapsulated oil seals, a press cover, a sealing ring press cover, a lower shaft head and a shaft bush. The lean oil pump device supplies lubricating oil for the lower bearing block. An outer ring of the joint bearing is matched with the tail bearing outer shell, and an inner ring of the joint bearing is matched with the sealing ring holder. The two double-lip encapsulated oil seals are arranged on the sealing ring holder, and the press cover, the sealing ring press cover and the tail bearing outer shell are connected with each other by bolts. The utility model has the advantages of reasonable and compact structure, easy manufacture, convenient operation and long service life.
Description
Technical field:
The utility model volute pump belongs to the lifting means of sewage in water supply, the drainage works with step and thin oil pump, is used for the environmental protection machinery field.
Background technique:
Lifting means commonly used is a volute pump in existing feedwater, the drainage works, volute pump mainly is made of parts such as the pump housing, upper bearing bracket, step, decelerator, manger boards, the volute pump step adopts two single-row radial ball bearing supporting pump shafts, lubricating fitting is added to the II aluminium-base grease in the lower bearing, because step is immersed in the water for a long time, maintenance inconvenience, and perishable.
Summary of the invention:
The purpose of this utility model provides a kind of volute pump with step and thin oil pump-unit, to solve grease-added inconvenience, improves the working life of volute pump step, and reduces maintenance.
The utility model is formed the thin oil pump-unit by thin oil pump (1), transport pipe (2), oil separator (3), stop valve (4), return tube (5); Form step by tail-hood (6), tail bearing shell (7), joint shaft bearing (8), packing holder (9), lips encapsulate oil sealing (10), gland (11), seal ring gland (12), following spindle nose (13) and axle bush (14); Tail-hood (6) is installed on the tail bearing shell (7), joint shaft bearing (8) outer ring cooperates with tail bearing shell (7), joint shaft bearing (8) inner ring cooperates with packing holder (9), packing holder (9) cooperates with axle bush (14), lips encapsulate oil sealing (10) is installed in the packing holder (9), seal ring gland (12) is installed on the tail bearing shell (7), gland (11), seal ring gland (12) and tail bearing shell (7) link together with bolt, and following spindle nose (13) is installed together with joint shaft bearing (8); Transport pipe (2) is connected to tail bearing shell (7), and return tube (5) is connected to tail-hood (6), and step is installed on the undersetting by connecting base (15).
The volute pump step is one of critical component of volute pump, therefore, must adopt reliable structural type and rational lubrication system during design, and consider that the axial stretching that causes owing to the temperature difference can do automatically to regulate, its bearing housing of adjustable undersetting can be done certain rotation around shaft axis in bearing, when installation and operation, the concentricity that keeps upper bracket and undersetting axle, and whole bearing housing can move along shaft axis, avoid because the distortion that thermal expansion causes, therefore, in the utility model, in the step of volute pump, selected for use joint shaft bearing to come supporting pump shaft, and give with the thin oil pump and to carry lubricant oil in the step, specifically on the spindle nose packing holder is being installed down, two lips encapsulate oil sealings are installed in the packing holder, joint shaft bearing is installed on the packing holder, after the step overall package is good, the oil lubricating system pipeline is connected with step, during the volute pump running, the thin oil pump is just delivered to lubricant oil in the step, and this structural type has just guaranteed the working life of step, has reduced maintenance.
Description of drawings:
Fig. 1 is a thin oil pump-unit component diagram.
Fig. 2 is volute pump step component diagram.
Among the figure: 1 is the thin oil pump, and 2 is transport pipe, and 3 is oil separator, and 4 is stop valve, and 5 is return tube, 6 is tail-hood, and 7 is the tail bearing shell, and 8 is joint shaft bearing, and 9 is packing holder, and 10 is lips encapsulate oil sealing, 11 is gland, and 12 is the seal ring gland, and 13 are following spindle nose, and 14 is axle bush, and 15 is connecting base.The top arrow is a filler opening, and the bottom arrow is an oil outlet.
Embodiment:
As Fig. 1: adopt thin oil pump lubrication system lubricated, give with thin oil pump 1 and carry lubricant oil in the step, transport pipe 2, return tube 5, oil separator 3, stop valve 4 are installed on the thin oil pump 1 to joint shaft bearing 8.Stop valve 4 is installed on transport pipe 2, the return tube 5, and transport pipe 2 is input to the filler opening of step top arrow with the lubricant oil of thin oil pump 1, and the lubricant oil in the step is by the defeated return tube 5 of getting back to of lower arrow return opening; The pressure of thin oil pump 1 is 1Mpa, gives per hour 100 milliliters of oil masses, and reservoir capacity is 8 liters.
As Fig. 2, in step, tail-hood 6 is installed on the tail bearing shell 7 by bolt, and tail-hood 6 materials are cast iron HT200,15 millimeters of wall thickness, and radius R=100 millimeter have return opening on the tail-hood 6; Joint shaft bearing 8 outer rings cooperate with tail bearing shell 7, and tail bearing shell 7 materials are cast iron HT200, have filler opening on the shell 7, and joint shaft bearing 8 inner rings cooperate with packing holder 9, and joint shaft bearing 8 models are GE140.ES, GB GB9163-90; Packing holder 9 materials are cast iron, have oil groove, and packing holder 9 cooperates with axle bush 14, and two lips encapsulate oil sealings 10 are installed on the packing holder 9, and oil sealing 10 models are SN70-TC11514012; The internal diameter of axle bush 14 is 95 millimeters of φ, and external diameter is 115 millimeters of φ, and length is 120 millimeters, has three oil grooves, for grease channel; Seal ring gland 12 is installed together with tail bearing shell 7, and gland 11 links together with seal ring gland 12 and tail bearing shell 7 usefulness bolts, and seal ring gland 12 materials are cast iron; Following spindle nose 13 is installed together with joint shaft bearing 8, and following spindle nose 13 materials are 45 steel, and quenching hardness is more than HRC45, and chrome-faced is provided with joint shaft bearing (8) supporting pump shaft in the tail bearing shell 7.
This volute pump is manufactured easily with step and thin oil pump-unit compactness rational in infrastructure, and is easy to operate, long service life.
Claims (5)
1, a kind of volute pump is with step and thin oil pump-unit, and it is characterized in that: it forms the thin oil pump-unit by thin oil pump (1), transport pipe (2), oil separator (3), stop valve (4), return tube (5); Form step by tail-hood (6), tail bearing shell (7), joint shaft bearing (8), packing holder (9), lips encapsulate oil sealing (10), gland (11), seal ring gland (12), following spindle nose (13) and axle bush (4); Tail-hood (6) is installed on the tail bearing shell (7), joint shaft bearing (8) outer ring cooperates with tail bearing shell (7), joint shaft bearing (8) inner ring cooperates with packing holder (9), packing holder (9) cooperates with axle bush (14), lips encapsulate oil sealing (10) is installed in the packing holder (9), seal ring gland (12) is installed on the tail bearing shell (7), gland (11), seal ring gland (12) and tail bearing shell (7) link together with bolt, and following spindle nose (13) is installed together with joint shaft bearing (8); Transport pipe (2) is connected to tail bearing shell (7), and return tube (5) is connected to tail-hood (6), and step is installed on the undersetting by connecting base (15).
2, step according to claim 1 and thin oil pump-unit is characterized in that tail-hood (6) is installed on the tail bearing shell (7) by bolt, and tail-hood has return opening on (6).
3, step according to claim 1 and thin oil pump-unit is characterized in that the model of joint shaft bearing (8) is GE140ES.
4, step according to claim 1 and thin oil pump-unit, two lips encapsulate oil sealings (10) model that it is characterized in that being installed on the packing holder (9) is SN70-TC11514012.
5, step according to claim 1 and thin oil pump-unit is characterized in that axle bush (4) has three oil grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420054652 CN2771520Y (en) | 2004-12-24 | 2004-12-24 | Bottom bearing block and lean oil pump device for helicoidal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420054652 CN2771520Y (en) | 2004-12-24 | 2004-12-24 | Bottom bearing block and lean oil pump device for helicoidal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2771520Y true CN2771520Y (en) | 2006-04-12 |
Family
ID=36705310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420054652 Expired - Fee Related CN2771520Y (en) | 2004-12-24 | 2004-12-24 | Bottom bearing block and lean oil pump device for helicoidal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2771520Y (en) |
-
2004
- 2004-12-24 CN CN 200420054652 patent/CN2771520Y/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: 20060412 Termination date: 20121224 |