CN206582165U - A kind of high suction pressure cantilever pump special construction - Google Patents
A kind of high suction pressure cantilever pump special construction Download PDFInfo
- Publication number
- CN206582165U CN206582165U CN201720318778.6U CN201720318778U CN206582165U CN 206582165 U CN206582165 U CN 206582165U CN 201720318778 U CN201720318778 U CN 201720318778U CN 206582165 U CN206582165 U CN 206582165U
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- impeller
- bearing
- rear bearing
- suction pressure
- pump
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- 238000010276 construction Methods 0.000 title claims abstract description 10
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of high suction pressure cantilever pump special construction, including main shaft, the pump housing, impeller, fore bearing is arranged with the middle part of main shaft, fore bearing carries out axially position by distance block with being installed on the front bearing retainer of institute's pump housing, main shaft rear portion concatenation is arranged with rear bearing one and rear bearing two, pump housing rear end is provided with rear bearing cover, rear bearing cover is provided with spring base in the one end faced with rear bearing two-phase, some springs are laid with spring base, spring base is connected by limit screw with rear bearing cover, profiling is equiped with front shroud of impeller and back shroud of impeller respectively at impeller two ends, back shroud of impeller axial projective area is more than front shroud of impeller axial projective area, the utility model structure, improve reliability when cantilever pump is run under high suction pressure, extend the service life of pump.
Description
Technical field
The utility model, which is related to a kind of flow pump configuration, to be improved, more particularly to a kind of special knot of high suction pressure cantilever pump
Structure.
Background technology
When existing cantilever pump is run under high suction pressure operating mode, the phenomenon such as often there is bearing heavy wear, burn out, leading
Cause pump not run normally, influence scene goes into operation, to improve the ability of pump reliability service, reduce axial force and improve the axle of bearing
It is the problem of having to solve to load intensity.
The content of the invention
In view of the deficiency that prior art is present, the purpose of this utility model is to provide axial force under a kind of high suction pressure
It is small, and the high high suction pressure cantilever pump special construction of axial load intensity of bearing, to achieve the above objectives, the utility model
Realized using following technical scheme：A kind of high suction pressure cantilever pump special construction, including main shaft 13, the pump housing 15, impeller 14, institute
State the middle part of main shaft 13 and be arranged with fore bearing 9, the fore bearing 9 is entered by distance block 2 with being installed on the front bearing retainer 7 of institute's pump housing 15
Row axially position, the rear portion of main shaft 13 concatenation is arranged with rear bearing 1 and rear bearing 2 11, and the rear end of the pump housing 15 is provided with
Rear bearing cover 12, the rear bearing cover 12 is being provided with spring base 1, the spring base 1 with the adjacent one end of the rear bearing 2 11
Some springs 4 are inside laid with, the spring base 1 is connected by limit screw 3 with the rear bearing cover 12.14 liang of the impeller
Profiling is equiped with front shroud of impeller 5 and back shroud of impeller 6 respectively at end, and the axial projective area of back shroud of impeller 6 is more than described
The axial projective area of front shroud of impeller 5.
The utility model is further set, and the front bearing retainer 7 is connected by bolt 8 with the pump housing.
The utility model is further set, and the rear bearing 1 and rear bearing 2 11 are angular contact ball bearing.
The beneficial effects of the utility model：Will be double using a kind of high suction pressure cantilever pump special construction of the technical program
Join angular contact ball bearing tandem compound, spring base, limit screw, spring are set at the nearly bearing cap of Bearing support, pass through bearing pair
Axle provides pretightning force, sets distance block to position axle at ball bearing, when suction pressure is higher, the bearing being installed in series
Its suction side axial force can be preferably born, while the spring in compression also counteracts a part of suction side axial force, is improved
The axial load intensity of bearing；When the pump is operated, back shroud of impeller area and front shroud choma are to spue with area of UNICOM is exported
Pressure, because the lifting surface area of back shroud is bigger than the lifting surface area of front shroud so that the impeller formation power opposite with suction pressure,
Counteract part suction side axial force and reduce axial force, that is, alleviate the load of bearing, this improves cantilever pump
Reliability when being run under high suction pressure, extends the service life of pump.
Brief description of the drawings
Fig. 1 is intended to for the utility model structure mark.
Fig. 2 is enlarged drawing at the utility model structure I.
Embodiment
As depicted in figs. 1 and 2:A kind of high suction pressure cantilever pump special construction, including main shaft 13, the pump housing 15, impeller 14,
The middle part of main shaft 13 is arranged with fore bearing 9, and fore bearing 9 carries out axial direction by distance block 2 with being installed on the front bearing retainer 7 of institute's pump housing 15
Positioning, the rear portion of main shaft 13 concatenation is arranged with rear bearing 1 and rear bearing 2 11, and the rear end of the pump housing 15 is provided with rear bearing cover 12, rear axle
Hold lid 12 and be provided with spring base 1 with the adjacent one end of rear bearing 2 11, be laid with some springs 4, spring base 1 in spring base 1
It is connected by limit screw 3 with rear bearing cover 12.Profiling is equiped with front shroud of impeller 5 and back shroud of impeller to the two ends of impeller 14 respectively
6, the axial projective area of back shroud of impeller 6 is more than the axial projective area of front shroud of impeller 5.
Wherein, front bearing retainer 7 is connected by bolt 8 with the pump housing.
Wherein, rear bearing 1 and rear bearing 2 11 are angular contact ball bearing.
Claims (3)
1. a kind of high suction pressure cantilever pump special construction, including main shaft（13）, the pump housing（15）, impeller（14）, it is characterised in that：
The main shaft（13）Middle part is arranged with fore bearing（9）, the fore bearing（9）Pass through distance block（2）With being installed on institute's pump housing（15）
Front bearing retainer（7）Carry out axially position, the main shaft（13）Rear portion concatenation is arranged with rear bearing one（10）With rear bearing two
（11）, the pump housing（15）Rear end is provided with rear bearing cover（12）, the rear bearing cover (12) with the rear bearing two（11）Phase
The one end faced is provided with spring base (1), the spring base（1）Inside it is laid with some springs（4）, the spring base (1), which passes through, stops
Dynamic screw（3）With the rear bearing cover (12）Connection, the impeller（14）Profiling is equiped with front shroud of impeller respectively at two ends（5）With
Back shroud of impeller (6), back shroud of impeller (6) axial projective area is more than the front shroud of impeller（5）Axial projective area.
2. a kind of high suction pressure cantilever pump special construction according to claim 1, it is characterised in that：The front bearing retainer
（7）It is connected by bolt (8) with the pump housing.
3. a kind of high suction pressure cantilever pump special construction according to claim 1, it is characterised in that：The rear bearing one
（10）With rear bearing two（11）It is angular contact ball bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720318778.6U CN206582165U (en) | 2017-03-29 | 2017-03-29 | A kind of high suction pressure cantilever pump special construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720318778.6U CN206582165U (en) | 2017-03-29 | 2017-03-29 | A kind of high suction pressure cantilever pump special construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206582165U true CN206582165U (en) | 2017-10-24 |
Family
ID=60115330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720318778.6U Active CN206582165U (en) | 2017-03-29 | 2017-03-29 | A kind of high suction pressure cantilever pump special construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206582165U (en) |
-
2017
- 2017-03-29 CN CN201720318778.6U patent/CN206582165U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |