CN203430845U - Core-pulling type vertical diagonal flow pump - Google Patents
Core-pulling type vertical diagonal flow pump Download PDFInfo
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- CN203430845U CN203430845U CN201320414546.2U CN201320414546U CN203430845U CN 203430845 U CN203430845 U CN 203430845U CN 201320414546 U CN201320414546 U CN 201320414546U CN 203430845 U CN203430845 U CN 203430845U
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- pump
- bearing
- bearing seat
- diagonal flow
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Abstract
The utility model provides a core-pulling type vertical diagonal flow pump which comprises a space guide vane body, a pump shaft, an impeller, a guiding bearing seat and a reverse sub impeller. The reverse sub impeller is mounted at the bottom end of the pump shaft, the bottom end of the inner wall of the space guide vane body is connected with a bearing seat mounting base through an annular plate, the guiding bearing seat and a sealing shaft sleeve are fixedly mounted in the bearing seat mounting base, and the guiding bearing seat is located above the sealing shaft sleeve. An oil return disc is arranged above the guiding bearing seat and mounted on the inner wall of the space guide vane body, and lubrication oil is arranged in a cavity formed by the bearing seat mounting base, the annular plate and the inner wall of the space guide vane body. According to the core-pulling type vertical diagonal flow pump, axial force borne by the pump shaft is lowered, and pump efficiency is improved; the oil return disc can be used for cooling a guiding bearing in a lubricating mode, and the service life of the guiding bearing is prolonged; the core-pulling type vertical diagonal flow pump has the advantages of being stable in performance and long in service life.
Description
technical field
The utility model relates to a kind of diagonal pumps, especially relates to a kind of Drawing-Core vertical diagonal flow pump.
background technique
Diagonal pumps are called again guide vane mixed flow pump, are the comprehensive of centrifugal pump and axial-flow pump, are also a kind of of major axis diagonal pumps, the oblique outflow impeller of liquid.Having that floor space is few, external diameter is little, easily start and efficiency advantages of higher, is a kind of performance and the structure water pump between centrifugal pump and axial-flow pump, and the shortcoming that has compensated both has advantages of both simultaneously.This kind pump is mainly used in the recycle pump of large electric power plant station and nuclear power station, makes metallurgical, city and farmland plumbing and industrial and mineral pump for engineering, cooling system pump and be used for carrying the every field such as clear water, rainwater, sewage and seawater.
Pump shaft is vertical installation, and straight down, discharge opening level is overhanging for suction port, and rotor part has withdrawable and not withdrawable two kinds of forms.Mounting type has pump, motor to be arranged on respectively two base layers and pump, motor direct connection are arranged on two kinds of forms of a base layer.There are two kinds of wet hole formula and dry hole formulas in the suction pond of pump.The end thrust of pump is generally born by motor, and miniature pump also can be born by pump self.Impeller is generally one-level, also can be designed to as required multistage.
By blade wheel structure, divide, diagonal pumps can be divided into open type diagonal pumps, semi-open type diagonal pumps and enclosed diagonal pumps etc.; By impeller kind, divide, can be divided into centrifugal, mixed-flow and axial flow diagonal pumps etc.In the last few years, lot of domestic and foreign producer gradually adopts spatial guide blade to replace spiral case as the delivery chamber of major axis diagonal pumps, make part-structure full symmetric under long-shaft pump liquid, avoided lateral row to go wrong, also eliminated the problem that may cause because of asymmetric thermal expansion under particular job condition.But find in actual applications, although spatial guide blade formula diagonal pumps are widely used, exist a series of problems such as pump efficiency is on the low side, the life-span of bearing is short.Efficiency is on the low side, is mainly the problem due to spatial guide blade structure, can consume high, operating cost is higher; It is mainly that the bearing thrust load of carrying is excessive and cause bearing fragile that life-span is short.In the working procedure of pump, pump shaft also will be subject to the impact of various power simultaneously, and its intensity, vibration state etc. are directly connected to operation stability and the reliability of long-shaft pump, have even determined working condition and the working life of whole pump.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model provides a kind of thrust load little, the Drawing-Core vertical diagonal flow pump of long service life and stable performance.
The technical solution adopted in the utility model is: comprise spatial guide blade body, pump shaft, impeller, guide shaft bearing and reverse sub-propeller; Described reverse sub-propeller is arranged on the bottom of pump shaft.
In above-mentioned Drawing-Core vertical diagonal flow pump, the bottom of described spatial guide blade body inwall is connected with bearing support fitting seat by annular slab; In bearing support fitting seat, be installed with guide shaft bearing and sealing axle sleeve, guide bearing seat is positioned at the top of sealing axle sleeve; The top of guide shaft bearing is provided with return tray, and return tray is arranged on spatial guide blade body inwall, in the cavity that bearing support fitting seat, annular slab and spatial guide blade body inwall form, is provided with lubricant oil.
In above-mentioned Drawing-Core vertical diagonal flow pump, baffle plate, spring, pressing plate and seal ring are installed in described sealing axle sleeve; Spring is between baffle plate and pressing plate, and baffle plate is positioned at sealing axle sleeve bottom; Described seal ring is placed between the guide bearing bottom in pressing plate and guide shaft bearing.
In above-mentioned Drawing-Core vertical diagonal flow pump, the cross section of described return tray is ellipse arc.
Compared with prior art, the utlity model has following beneficial effect:
1. the bottom of pump shaft of the present utility model is provided with reverse sub-propeller; during pump shaft rotation; reverse sub-propeller rotates with pump shaft; make the center hydraulic pressure of impeller downward; again with suction port in current converge, improve impeller water-taking efficiency, reduce the suffered axial force of pump shaft; and reverse sub-propeller can smash the foreign material that enter spatial guide blade inner chamber, play the effect of protection pump shaft and bearing unit.
2. the utility model adopts spring to add General Purpose Rubber seal ring sealing means, this kind project organization is simple, sealability is strong, working service is convenient, economic consume is little, and have and upset vibration frequency of the present utility model, avoid producing resonance, reduce pump shaft leading portion partial vibration, improve running stability of the present utility model and usability, extended working life of the present utility model.
3. to adopt oval return tray to be lubricated cooling mode ，Ci Zhong mechanism simple for the utility model, and processing is good with mounting process, and the lubricated drip-type that adopts of guide bearing is lubricated, has good cooling effect, has extended the working life of guide bearing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is B place enlarged view in Fig. 1.
Fig. 3 is A place enlarged view in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 1, the utility model comprises reverse sub-propeller 1, impeller 2, spatial guide blade body 3, pump shaft 4 and guide shaft bearing 6; As shown in Figure 2, described reverse sub-propeller 1 is arranged on the bottom of pump shaft 4 by screw thread, and welds with impeller 2.During pump shaft 4 rotation; reverse sub-propeller 1 is with pump shaft 4 rotations; make the hydraulic pressure of center of impeller 2 downward; again with suction port in current converge; improve impeller 2 water-taking efficiencies; reduce the suffered axial force of pump shaft 4, and reverse sub-propeller 1 can smash the foreign material that enter spatial guide blade inner chamber, play the effect of protection pump shaft 4 and bearing unit.
As shown in Figure 1,3, the bottom of described spatial guide blade body 3 inwalls is connected with bearing support fitting seat 10 by annular slab 9; In bearing support fitting seat 10, be installed with guide shaft bearing 6 and sealing axle sleeve 8, guide shaft bearing 6 is positioned at the top of sealing axle sleeve 8; The top of guide shaft bearing 6 is provided with return tray 5, and return tray 5 cross sections are ellipse arc, is arranged on the inwall of spatial guide blade body 3, in the cavity that the inwall of bearing support fitting seat 10, annular slab 9 and spatial guide blade body 3 forms, is provided with lubricant oil 7.Baffle plate 81, spring 82, pressing plate 83 and seal ring 84 are installed in described sealing axle sleeve 8; Spring 82 is between baffle plate 81 and pressing plate 83, and baffle plate 81 is arranged on the bottom of sealing axle sleeve 8; Described seal ring 84 is placed between guide bearing 11 bottoms in pressing plate 83 and guide shaft bearing 6.
In pump operation process, lubricant oil 7, under the effect of centrifugal force, climbs along the inwall of spatial guide blade body 3, and then is dropped on guide bearing 11 by return tray 5, can play the effect of lubricated, cooling guide bearing 11.
The utility model adopts spring 82 to add the sealing means of seal ring 84, sealing configuration is simple, sealability is strong, working service is convenient, economic consume is little, and have and upset vibration frequency of the present utility model, avoid producing resonance, reduce pump shaft 4 leading portion partial vibrations, improve running stability of the present utility model and usability, extended working life of the present utility model.
Claims (3)
1. a Drawing-Core vertical diagonal flow pump, comprises spatial guide blade body, pump shaft, impeller, guide shaft bearing and reverse sub-propeller; It is characterized in that: the bottom of described spatial guide blade body inwall is connected with bearing support fitting seat by annular slab; In bearing support fitting seat, be installed with guide shaft bearing and sealing axle sleeve, guide bearing seat is positioned at the top of sealing axle sleeve; The top of guide shaft bearing is provided with return tray, and return tray is arranged on spatial guide blade body inwall, in the cavity that bearing support fitting seat, annular slab and spatial guide blade body inwall form, is provided with lubricant oil; Baffle plate, spring, pressing plate and seal ring are installed in described sealing axle sleeve; Spring is between baffle plate and pressing plate, and baffle plate is positioned at sealing axle sleeve bottom; Described seal ring is placed between the guide bearing bottom in pressing plate and guide shaft bearing; Described reverse sub-propeller is arranged on the bottom of pump shaft.
2. Drawing-Core vertical diagonal flow pump according to claim 1, is characterized in that: the cross section of described return tray is ellipse arc.
3. Drawing-Core vertical diagonal flow pump according to claim 1, is characterized in that: described reverse sub-propeller is connected with pump shaft by screw thread, and and impeller welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320414546.2U CN203430845U (en) | 2013-07-12 | 2013-07-12 | Core-pulling type vertical diagonal flow pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320414546.2U CN203430845U (en) | 2013-07-12 | 2013-07-12 | Core-pulling type vertical diagonal flow pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203430845U true CN203430845U (en) | 2014-02-12 |
Family
ID=50059888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320414546.2U Expired - Lifetime CN203430845U (en) | 2013-07-12 | 2013-07-12 | Core-pulling type vertical diagonal flow pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203430845U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131215A (en) * | 2019-06-05 | 2019-08-16 | 广州市昕恒泵业制造有限公司 | A kind of pump baffle structure |
-
2013
- 2013-07-12 CN CN201320414546.2U patent/CN203430845U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131215A (en) * | 2019-06-05 | 2019-08-16 | 广州市昕恒泵业制造有限公司 | A kind of pump baffle structure |
| CN110131215B (en) * | 2019-06-05 | 2024-02-09 | 广州市昕恒泵业制造有限公司 | Flow guiding body structure for pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140212 |