CN204253433U - A kind of axial flow submersible pump - Google Patents
A kind of axial flow submersible pump Download PDFInfo
- Publication number
- CN204253433U CN204253433U CN201420682235.9U CN201420682235U CN204253433U CN 204253433 U CN204253433 U CN 204253433U CN 201420682235 U CN201420682235 U CN 201420682235U CN 204253433 U CN204253433 U CN 204253433U
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- China
- Prior art keywords
- wheel hub
- diffuser
- dividing plate
- impeller assembly
- main shaft
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Abstract
A kind of axial flow submersible pump, comprise from top to bottom end to end diffuser, impeller assembly, and diffuser and impeller assembly is all in ring body shape; The middle part of described diffuser is laterally provided with dividing plate, and diffuser is divided into upper and lower two chambers by dividing plate; In the middle part of the dividing plate of diffuser, also radial direction is provided with main shaft, and one end of main shaft puts in impeller assembly; The upper end of described impeller assembly is in circular wheel hub, and wheel hub engagement sleeves is located at and puts on the main shaft of impeller assembly; The upper end of described wheel hub puts in the bottom chamber of diffuser, and on the periphery of wheel hub, engagement sleeves is provided with alignment bearing, and alignment bearing coordinates fixing by bearing support; Described bearing support is the ring body shape that one end is provided with flange, and its one end being provided with flange coordinates fixing with dividing plate, the alignment bearing hole engagement sleeves of its another port is located on alignment bearing.
Description
Technical field
The utility model belongs to axial flow Submerged Motor Pumps technical field, is specifically related to a kind of axial flow submersible pump.
Background technique
At present, the pump section of the axial flow Submerged Motor Pumps that people often use and dry type motor use a main shaft, but along with the maximization of axial flow Submerged Motor Pumps, length of shaft also can constantly lengthen, just following problem can be produced: (1) electric pump is in operation process, rocking of axle can be obvious all the more along with the elongated of shaft extension, and impeller also can rock along with axle; (2) rocking due to impeller and axle, can cause the gap smaller between blade and impeller housing, even causes the two scraping or collision, makes the damaged or fracture of blade, even causes burn-down of electric motor because of overpower; (3) if only offset this impact by the strength of materials of reinforced shaft, this is very high to the requirement of spindle material, greatly can increase the cost of material.
Model utility content
For solving the deficiency that the design of existing axial flow Submerged Motor Pumps pump segment structure exists, the utility model devises a kind of axial flow submersible pump improving alignment bearing structure.
A kind of axial flow submersible pump, comprises diffuser 1, impeller assembly, the ring body shape that described diffuser 1 is big up and small down, and be laterally provided with dividing plate 11 in the middle part of it, diffuser 1 is divided into upper and lower two chambers by dividing plate 11; At the middle part of dividing plate 11, also radial direction is provided with main shaft 2, and one end of main shaft 2 puts in impeller assembly; Described impeller assembly and diffuser 1 lower end mouth are connected, and the top of impeller assembly is the wheel hub 6 in ring body shape, and wheel hub 6 engagement sleeves is located at and puts on the main shaft 2 of impeller assembly,
The upper end of described wheel hub 6 puts in the bottom chamber of diffuser 1, and on the upper end periphery of wheel hub 6, engagement sleeves is provided with alignment bearing 5, and alignment bearing 5 coordinates fixing by bearing support 4;
Described bearing support 4 is provided with the ring body shape of flange in one end, its one end being provided with flange coordinates fixing with dividing plate 11, the inwall place of its another port is provided with stair-stepping alignment bearing hole 13; Described alignment bearing hole 13 engagement sleeves is located on the outer ring of alignment bearing 5.
Described alignment bearing hole 13 is interference fit with coordinating of alignment bearing 5; Described alignment bearing 5 is Spielpassung with coordinating of wheel hub 6 upper end periphery; Described wheel hub 6 is Spielpassung with coordinating of main shaft 2.
Described main shaft 2 coordinates fixing with the thrust metal 12 in diffuser 1 epicoele; The flange of described bearing support 4 coordinates fixing with dividing plate 11 by fastening piece 10.
Described impeller assembly is made up of wheel hub 6, blade 7 and air guide sleeve 8, and the outside of described wheel hub 6 is laid with blade 7; Coordinate at the lower end mouth place of wheel hub 6 and be provided with air guide sleeve 8, and air guide sleeve 8 puts in water suction chamber 9.
On main shaft 2 below described dividing plate 11, engagement sleeves is provided with mechanical seal 3.
Advantageous Effects of the present utility model:
Alignment bearing, by cancelling the axle sleeve of original structure, is arranged on wheel hub, makes original diffuser become two chambeies from three chambeies by the utility model, and the shaft extension of electric pump main shaft shortens, the stressed arm of force shortens, and substantially increases electric pump operational reliability, and reduces the requirement to spindle material; Electric pump total length also decreases, and complete machine weight is corresponding reduction also, achieves cost-saving, to improve reliability object.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the partial enlarged drawing of I in Fig. 1.
Sequence number in upper figure: diffuser 1, main shaft 2, mechanical sealing element 3, bearing support 4, alignment bearing 5, wheel hub 6, blade 7, air guide sleeve 8, water suction chamber 9, fastening piece 10, dividing plate 11, thrust metal 12, alignment bearing hole 13.
Embodiment
See Fig. 1, a kind of axial flow submersible pump, comprises diffuser 1, impeller assembly, the ring body shape that described diffuser 1 is big up and small down, and be laterally provided with dividing plate 11 in the middle part of it, diffuser 1 is divided into upper and lower two chambers by dividing plate 11; At the middle part of dividing plate 11, also radial direction is provided with main shaft 2, and one end of main shaft 2 puts in impeller assembly; Described impeller assembly and diffuser 1 lower end mouth are connected, and the top of impeller assembly is the wheel hub 6 in ring body shape, and wheel hub 6 engagement sleeves is located at and puts on the main shaft 2 of impeller assembly.
See Fig. 2, the upper end of described wheel hub 6 puts in the bottom chamber of diffuser 1, and on the upper end periphery of wheel hub 6, engagement sleeves is provided with alignment bearing 5, and alignment bearing 5 coordinates fixing by bearing support 4;
Described bearing support 4 is provided with the ring body shape of flange in one end, its one end being provided with flange coordinates fixing with dividing plate 11, the inwall place of its another port is provided with stair-stepping alignment bearing hole 13; Described alignment bearing hole 13 engagement sleeves is located on the outer ring of alignment bearing 5.
Described alignment bearing hole 13 is interference fit with coordinating of alignment bearing 5; Described alignment bearing 5 is Spielpassung with coordinating of wheel hub 6 upper end periphery; Described wheel hub 6 is Spielpassung with coordinating of main shaft 2.
Described main shaft 2 coordinates fixing with the thrust metal 12 in diffuser 1 epicoele; The flange of described bearing support 4 coordinates fixing with dividing plate 11 by fastening piece 10.
Described impeller assembly is made up of wheel hub 6, blade 7 and air guide sleeve 8, and the outside of described wheel hub 6 is laid with blade 7; Coordinate at the lower end mouth place of wheel hub 6 and be provided with air guide sleeve 8, and air guide sleeve 8 puts in water suction chamber 9.
On main shaft 2 below described dividing plate 11, engagement sleeves is provided with mechanical seal 3.
Claims (5)
1. an axial flow submersible pump, comprises diffuser (1), impeller assembly, the ring body shape that described diffuser (1) is big up and small down, and be laterally provided with dividing plate (11) in the middle part of it, diffuser (1) is divided into upper and lower two chambers by dividing plate (11); At the middle part of dividing plate (11), also radial direction is provided with main shaft (2), and one end of main shaft (2) puts in impeller assembly; Described impeller assembly and diffuser (1) lower end mouth are connected, and the top of impeller assembly is the wheel hub (6) in ring body shape, and wheel hub (6) engagement sleeves be located at put in impeller assembly main shaft (2) on, it is characterized in that:
The upper end of described wheel hub (6) puts in the bottom chamber of diffuser (1), and on the upper end periphery of wheel hub (6), engagement sleeves is provided with alignment bearing (5), and alignment bearing (5) coordinates fixing by bearing support (4);
Described bearing support (4) is provided with the ring body shape of flange in one end, its one end being provided with flange coordinates fixing with dividing plate (11), the inwall place of its another port is provided with stair-stepping alignment bearing hole (13); Described alignment bearing hole (13) engagement sleeves is located on the outer ring of alignment bearing (5).
2. a kind of axial flow submersible pump according to claim 1, is characterized in that: described alignment bearing hole (13) is interference fit with coordinating of alignment bearing (5); Described alignment bearing (5) is Spielpassung with coordinating of wheel hub (6) upper end periphery; Described wheel hub (6) is Spielpassung with coordinating of main shaft (2).
3. a kind of axial flow submersible pump according to claim 1, is characterized in that: described main shaft (2) coordinates fixing with the thrust metal (12) in diffuser (1) epicoele; The flange of described bearing support (4) coordinates fixing with dividing plate (11) by fastening piece (10).
4. a kind of axial flow submersible pump according to claim 1, is characterized in that: described impeller assembly is made up of wheel hub (6), blade (7) and air guide sleeve (8), and the outside of described wheel hub (6) is laid with blade (7); Coordinate at the lower end mouth place of wheel hub (6) and be provided with air guide sleeve (8), and air guide sleeve (8) puts in water suction chamber (9).
5. a kind of axial flow submersible pump according to claim 1, is characterized in that: the upper engagement sleeves of main shaft (2) of described dividing plate (11) below is provided with mechanical seal (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420682235.9U CN204253433U (en) | 2014-11-15 | 2014-11-15 | A kind of axial flow submersible pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420682235.9U CN204253433U (en) | 2014-11-15 | 2014-11-15 | A kind of axial flow submersible pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204253433U true CN204253433U (en) | 2015-04-08 |
Family
ID=52957746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420682235.9U Active CN204253433U (en) | 2014-11-15 | 2014-11-15 | A kind of axial flow submersible pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204253433U (en) |
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2014
- 2014-11-15 CN CN201420682235.9U patent/CN204253433U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |