CN212003606U - Vertical volute type centrifugal pump with radial force balance structure - Google Patents
Vertical volute type centrifugal pump with radial force balance structure Download PDFInfo
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- CN212003606U CN212003606U CN202020649600.1U CN202020649600U CN212003606U CN 212003606 U CN212003606 U CN 212003606U CN 202020649600 U CN202020649600 U CN 202020649600U CN 212003606 U CN212003606 U CN 212003606U
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- pump
- impeller
- pump shaft
- radial force
- guide bearing
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Abstract
The utility model provides a vertical spiral case formula centrifugal pump with radial force balanced structure, including the pump case, be equipped with the impeller in the pump case, the impeller passes through the pump shaft and links to each other with the motor, drives pump shaft and impeller operation by the motor, is equipped with guide bearing on the pump shaft to the radial force of balanced pump shaft. The guide bearing is assembled at the position of the pump shaft close to the impeller so as to limit the radial clearance of the pump shaft. A limiting groove is formed in the position, close to the impeller, of the pump shaft, and the guide bearing is assembled in the limiting groove to axially limit the guide bearing. The centrifugal pump is additionally provided with the guide bearing at the position, close to the impeller, of the pump shaft, the capacity of bearing radial force when the water pump operates can be increased, the radial clearance is limited, the radial runout of the impeller is controlled, the phenomenon that the impeller and a seal ring of a pump body are seized due to overlarge stress is avoided, the guide bearing bears the radial force and the vibration force transmitted by the pump shaft, the axis position of a unit is fixed, the stability of the axis is ensured, and experiments prove that the effect of balancing the radial force is obvious.
Description
Technical Field
The utility model relates to a centrifugal pump especially relates to a vertical spiral case formula centrifugal pump with radial force balanced structure.
Background
The vertical volute type centrifugal pump belongs to a suspension type structure, the radial force is large in the operation process, vibration can be generated, the phenomenon that an impeller and a pump body sealing ring are seized can be caused in the serious process, and particularly in a large-scale pump, the radial force can not be overcome in the original structure all the time. The radial force of the centrifugal pump is one of main performance parameters of the centrifugal pump, and for a large vertical volute centrifugal pump, the impeller shaft section is slightly eccentrically rotated due to the radial force, so that radial vibration is promoted, and the radial force can cause fatigue fracture of a pump shaft and potential safety hazard besides vibration noise. Therefore, there is a need for a vertical volute centrifugal pump that is structurally optimized to overcome the above-mentioned disadvantages.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a vertical volute type centrifugal pump with radial force balanced structure to reduce the radial vibration of pump shaft.
The utility model discloses a solve the technical scheme that its technical problem adopted and be:
a vertical volute centrifugal pump with a radial force balance structure comprises a pump shell, wherein an impeller is arranged in the pump shell, the impeller is connected with a motor through a pump shaft, the motor drives the pump shaft and the impeller to operate, and a guide bearing is assembled on the pump shaft to balance the radial force of the pump shaft.
Specifically, the guide bearing is mounted on the pump shaft near the impeller to limit the radial clearance of the pump shaft.
A limiting groove is formed in the position, close to the impeller, of the pump shaft, and the guide bearing is assembled in the limiting groove to axially limit the guide bearing.
The utility model has the advantages that:
the centrifugal pump is additionally provided with the guide bearing at the position, close to the impeller, of the pump shaft, the capacity of bearing radial force when the water pump operates can be increased, the radial clearance is limited, the radial runout of the impeller is controlled, the phenomenon that the impeller and a seal ring of a pump body are seized due to overlarge stress is avoided, the guide bearing bears the radial force and the vibration force transmitted by the pump shaft, the axis position of a unit is fixed, the stability of the axis is ensured, and experiments prove that the effect of balancing the radial force is obvious.
Drawings
Fig. 1 is a partial structural schematic diagram of a vertical volute centrifugal pump with a radial force balancing structure according to the present invention.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention will be further described with reference to the drawings and the specific embodiments.
The utility model provides a vertical volute type centrifugal pump with radial force balanced structure includes the pump case, is equipped with the impeller in the pump case, and the impeller passes through the pump shaft and links to each other with the motor, drives pump shaft and impeller operation by the motor, is equipped with the guide bearing on the pump shaft to the radial force of balanced pump shaft. As shown in fig. 1, in the present embodiment, the guide bearing 100 is mounted at a position of the pump shaft 200 close to the impeller to limit a radial gap of the pump shaft. Further, a limit groove 201 is formed in the position, close to the impeller, of the pump shaft, and the guide bearing is assembled in the limit groove so as to be axially limited. The centrifugal pump is additionally provided with the guide bearing at the position, close to the impeller, of the pump shaft, the capacity of bearing radial force when the water pump operates can be increased, the radial clearance is limited, the radial runout of the impeller is controlled, the phenomenon that the impeller and a seal ring of a pump body are seized due to overlarge stress is avoided, the guide bearing bears the radial force and the vibration force transmitted by the pump shaft, the axis position of a unit is fixed, the stability of the axis is ensured, and experiments prove that the effect of balancing the radial force is obvious.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to let the technical personnel in the field understand the contents of the present invention and implement the present invention, and the protection scope of the present invention can not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.
Claims (3)
1. The utility model provides a vertical volute type centrifugal pump with radial force balanced structure, includes the pump case, is equipped with the impeller in the pump case, and the impeller passes through the pump shaft and links to each other with the motor, drives pump shaft and impeller operation, its characterized in that by the motor:
the pump shaft is fitted with guide bearings to balance the radial forces of the pump shaft.
2. The vertical volute centrifugal pump with radial force balancing structure as claimed in claim 1, wherein:
the guide bearing is assembled at the position of the pump shaft close to the impeller so as to limit the radial clearance of the pump shaft.
3. The vertical volute centrifugal pump with radial force balancing structure as claimed in claim 1, wherein:
a limiting groove is formed in the position, close to the impeller, of the pump shaft, and the guide bearing is assembled in the limiting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020649600.1U CN212003606U (en) | 2020-04-26 | 2020-04-26 | Vertical volute type centrifugal pump with radial force balance structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020649600.1U CN212003606U (en) | 2020-04-26 | 2020-04-26 | Vertical volute type centrifugal pump with radial force balance structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212003606U true CN212003606U (en) | 2020-11-24 |
Family
ID=73405792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020649600.1U Active CN212003606U (en) | 2020-04-26 | 2020-04-26 | Vertical volute type centrifugal pump with radial force balance structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212003606U (en) |
-
2020
- 2020-04-26 CN CN202020649600.1U patent/CN212003606U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhu Yongbin Inventor after: Chen Yan Inventor after: Jiang Jun Inventor before: Zhu Yongbin Inventor before: Chen Yan |