CN215444414U - Convenient to detach type centrifugal pump with water drainage tank - Google Patents
Convenient to detach type centrifugal pump with water drainage tank Download PDFInfo
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- CN215444414U CN215444414U CN202121638767.9U CN202121638767U CN215444414U CN 215444414 U CN215444414 U CN 215444414U CN 202121638767 U CN202121638767 U CN 202121638767U CN 215444414 U CN215444414 U CN 215444414U
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- shaft sleeve
- connecting shaft
- centrifugal pump
- bearing
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Abstract
The utility model provides a conveniently-detached centrifugal pump with a drainage channel, which comprises a centrifugal pump main body, wherein the centrifugal pump main body comprises a pump body, an impeller is installed in the pump body, the impeller is fixed through a locking nut, the pump body is connected with a pump cover, a mechanical seal is arranged at the joint of the impeller and the pump cover, and a bearing and a mechanical seal seat are arranged inside the pump cover; a bearing gland is arranged above the bearing and is attached to the bearing outer ring, a bearing inner ring lock cap is arranged in the bearing, and the bearing inner ring is locked by the bearing inner ring lock cap; the center of the centrifugal pump main body is provided with a motor shaft and an impeller shaft, the motor shaft and the impeller shaft are connected through a connecting shaft sleeve, and the upper end of the connecting shaft sleeve and the lower end of the connecting shaft sleeve are respectively provided with a positioning pin hole. The split shaft and the shaft sleeve are convenient to disassemble later and replace the mechanical seal and the quick-wear parts. When the quick-wear part mechanical seal is replaced, the mechanical seal can be replaced below only by lifting the rear end cover of the motor and the shaft rotor for a corresponding distance without detaching the whole motor to replace the mechanical seal.
Description
Technical Field
The utility model relates to the field of centrifugal pumps, in particular to a centrifugal pump with a drainage groove and convenient to disassemble.
Background
Centrifugal pumps operate by causing water to move centrifugally as a result of the rotation of an impeller. Before the water pump is started, the pump shell and the water suction pipe are filled with water, then the motor is started, the pump shaft drives the impeller and the water to rotate at a high speed, the water is thrown to the outer edge of the impeller to be thrown into a water pressure pipeline of the water pump through a flow channel of the volute-shaped pump shell. The existing centrifugal pump needs to be replaced by the whole machine once the parts are damaged, so that the maintenance cost is greatly increased, and the damage to the machine body can be caused once the existing centrifugal pump generates mechanical water leakage, so that the existing centrifugal pump is not beneficial to long-term use.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the utility model provides a centrifugal pump with a drainage groove and convenient to disassemble, and aims to solve at least one technical problem.
The technical scheme of the utility model is as follows: a centrifugal pump with a drainage channel and convenient to detach comprises a centrifugal pump main body and is characterized in that the centrifugal pump main body comprises a pump body, an impeller is mounted in the pump body and fixed through a locking nut, the pump body is connected with a pump cover, a mechanical seal is arranged at the joint of the impeller and the pump cover, and a bearing and a mechanical seal seat are arranged inside the pump cover;
a bearing gland is arranged above the bearing and is attached to the outer ring of the bearing, a bearing inner ring lock cap is arranged in the bearing, and the bearing inner ring is locked by the bearing inner ring lock cap;
the centrifugal pump is characterized in that a motor shaft and an impeller shaft are arranged in the center of the centrifugal pump main body, the motor shaft and the impeller shaft are connected through a connecting shaft sleeve, and the upper end of the connecting shaft sleeve and the lower end of the connecting shaft sleeve are respectively provided with a positioning pin hole.
The bearing is added on the centrifugal pump, and the bearing strength of the motor is reduced by three-point stress when the centrifugal pump runs, so that the service life of the motor is longer. The split shaft and the shaft sleeve are convenient to disassemble later and replace the mechanical seal and the quick-wear parts. When the quick-wear part mechanical seal is replaced, the mechanical seal can be replaced below only by lifting the rear end cover of the motor and the shaft rotor for a corresponding distance without detaching the whole motor to replace the mechanical seal.
Preferably, the surface of the pump cover and the mechanical seal seat are respectively provided with a water drainage groove, and the water drainage groove on the pump cover is communicated with the water drainage groove on the mechanical seal seat.
The pump cover position of pump on the pump body is equipped with water drainage tank, and the machine seal seat is equipped with water drainage tank, if mechanical seal leaks during the use can flow from the water drainage tank of machine seal seat and pump cover to the not fragile pump body. The mechanical seal water leakage can discharge water out of the pump along with the water discharge groove and can not splash into the bearing and the motor, so that the motor and the bearing are better protected.
Further preferably, a motor is mounted above the pump cover. The motor without a customized long shaft is convenient to change.
Preferably, a motor end key pin is arranged above the connecting shaft sleeve, an impeller end key pin is arranged below the connecting shaft sleeve, and the positioning pin holes are respectively matched with the motor end key pin and the impeller end key pin for use.
The locking of adjacent parts is convenient, thereby better protecting the stability of operation and preventing the impeller from moving up and down.
Further preferably, be equipped with the holding tank that is used for holding mechanical seal on the machine seals seat, be equipped with the sealing washer in the holding tank. According to the utility model, the mechanical seal can be better positioned by adding the accommodating groove, and the sealing effect of the sealing ring can be optimized.
Preferably, the inner diameter of the upper end of the connecting shaft sleeve is larger than the inner diameter of the lower end of the connecting shaft sleeve, the edge of the lower end of the connecting shaft sleeve is arc-shaped, and the outer diameter of the motor shaft is larger than the outer diameter of the impeller shaft.
The utility model optimizes the structure of the connecting shaft sleeve, can better fit the motor shaft and the impeller shaft, and has an arc edge to prevent abrasion during connection.
Further preferably, the lower surface of the pump cover is provided with a circular limiting bulge, and the opening of the pump body is clamped with the limiting bulge. Thereby increasing the contact area and improving the overall connection strength.
Preferably, the inner wall thickness of the upper end of the connecting shaft sleeve is greater than the inner wall thickness of the lower end of the connecting shaft sleeve, and the connecting surface of the upper end of the connecting shaft sleeve and the lower end of the connecting shaft sleeve is an inclined plane.
The utility model can achieve different protection effects through different thicknesses, and the sharp part is not easy to generate through the inclined plane.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
In the figure: the structure comprises an impeller 1, an impeller shaft 2, a machine seal seat 3, a bearing gland 4, an impeller end key pin 5, a motor end key pin 6, a standard motor 7, a pump body 8, a lock nut 9, a mechanical seal 10, a bearing 11, a bearing inner ring lock cap 12, a connecting shaft sleeve 13, a pump cover 14 and a motor shaft 15.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1, a centrifugal pump with a drainage channel and convenient to detach comprises a centrifugal pump main body, wherein the centrifugal pump main body comprises a pump body 8, an impeller 1 is installed in the pump body, the impeller is fixed through a locking nut 9, the pump body is connected with a pump cover 14, a mechanical seal 10 is arranged at the joint of the impeller and the pump cover, and a bearing 11 and a mechanical seal seat 3 are arranged inside the pump cover; a bearing gland 4 is arranged above the bearing, the bearing gland is attached to the bearing outer ring, a bearing inner ring lock cap 12 is arranged in the bearing, and the bearing inner ring is locked by the bearing inner ring lock cap; the center of the centrifugal pump main body is provided with a motor shaft 15 and an impeller shaft 2, the motor shaft and the impeller shaft are connected through a connecting shaft sleeve 13, and the upper end of the connecting shaft sleeve and the lower end of the connecting shaft sleeve are respectively provided with a positioning pin hole.
The bearing is added on the centrifugal pump, and the bearing strength of the motor is reduced by three-point stress when the centrifugal pump runs, so that the service life of the motor is longer. The split shaft and the shaft sleeve are convenient to disassemble later and replace the mechanical seal and the quick-wear parts. When the quick-wear part mechanical seal is replaced, the mechanical seal can be replaced below only by lifting the rear end cover of the motor and the shaft rotor for a corresponding distance without detaching the whole motor to replace the mechanical seal.
Further preferably, the surface of the pump cover and the mechanical seal seat are respectively provided with a water drainage groove, and the water drainage groove on the pump cover is mutually communicated with the water drainage groove on the mechanical seal seat. The pump cover position of pump on the pump body is equipped with water drainage tank, and the machine seal seat is equipped with water drainage tank, if mechanical seal leaks during the use can flow from the water drainage tank of machine seal seat and pump cover to the not fragile pump body. The water leakage of the mechanical seal can be followed by the water drainage groove to drain the water out of the pump and can not splash into the bearing and the motor, thereby better protecting the motor and the bearing.
Preferably, a motor 7 is mounted above the pump cover. The motor without a customized long shaft is convenient to change.
Preferably, a motor end key pin 6 is arranged above the connecting shaft sleeve, an impeller end key pin 5 is arranged below the connecting shaft sleeve, and the positioning pin holes are respectively matched with the motor end key pin and the impeller end key pin for use. The locking of adjacent parts is convenient, thereby better protecting the stability of operation and preventing the impeller from moving up and down.
Further preferably, be equipped with on the mechanical seal seat and be used for holding mechanical seal's holding tank, be equipped with the sealing washer in the holding tank. According to the utility model, the mechanical seal can be better positioned by adding the accommodating groove, and the sealing effect of the sealing ring can be optimized.
Further preferably, the inner diameter of the upper end portion of the connecting shaft sleeve is larger than the inner diameter of the lower end portion of the connecting shaft sleeve, the edge of the lower end portion of the connecting shaft sleeve is arc-shaped, and the outer diameter of the motor shaft is larger than the outer diameter of the impeller shaft. The utility model optimizes the structure of the connecting shaft sleeve, can better fit the motor shaft and the impeller shaft, and has an arc edge to prevent abrasion during connection.
Further preferably, the lower surface of the pump cover is provided with a circular limiting bulge, and the opening of the pump body is clamped with the limiting bulge. Thereby increasing the contact area and improving the overall connection strength.
Preferably, the thickness of the inner wall of the upper end of the connecting shaft sleeve is greater than that of the inner wall of the lower end of the connecting shaft sleeve, and the connecting surface between the upper end of the connecting shaft sleeve and the lower end of the connecting shaft sleeve is an inclined surface. The utility model can achieve different protection effects through different thicknesses, and the sharp part is not easy to generate through the inclined plane.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.
Claims (8)
1. A centrifugal pump with a drainage channel and convenient to detach comprises a centrifugal pump main body and is characterized in that the centrifugal pump main body comprises a pump body, an impeller is mounted in the pump body and fixed through a locking nut, the pump body is connected with a pump cover, a mechanical seal is arranged at the joint of the impeller and the pump cover, and a bearing and a mechanical seal seat are arranged inside the pump cover;
a bearing gland is arranged above the bearing and is attached to the outer ring of the bearing, a bearing inner ring lock cap is arranged in the bearing, and the bearing inner ring is locked by the bearing inner ring lock cap;
the centrifugal pump is characterized in that a motor shaft and an impeller shaft are arranged in the center of the centrifugal pump main body, the motor shaft and the impeller shaft are connected through a connecting shaft sleeve, and the upper end of the connecting shaft sleeve and the lower end of the connecting shaft sleeve are respectively provided with a positioning pin hole.
2. The centrifugal pump with a drain tank convenient to detach of claim 1, wherein: and the surface of the pump cover and the mechanical seal seat are respectively provided with a water drainage groove, and the water drainage groove on the pump cover is mutually communicated with the water drainage groove on the mechanical seal seat.
3. The centrifugal pump with a drain tank convenient to detach of claim 1, wherein: and a motor is arranged above the pump cover.
4. The centrifugal pump with a drain tank convenient to detach of claim 1, wherein: the motor end key pin is arranged above the connecting shaft sleeve, the impeller end key pin is arranged below the connecting shaft sleeve, and the positioning pin hole is respectively matched with the motor end key pin and the impeller end key pin for use.
5. The centrifugal pump with a drain tank convenient to detach of claim 2, wherein: the mechanical seal seat is provided with a containing groove used for containing a mechanical seal, and a sealing ring is arranged in the containing groove.
6. The centrifugal pump with a drain tank convenient to detach of claim 1, wherein: the inner diameter of the upper end part of the connecting shaft sleeve is larger than that of the lower end part of the connecting shaft sleeve, the edge of the lower end part of the connecting shaft sleeve is arc-shaped, and the outer diameter of the motor shaft is larger than that of the impeller shaft.
7. The centrifugal pump with a drain tank convenient to detach of claim 1, wherein: the lower surface of the pump cover is provided with a circular limiting bulge, and the opening of the pump body is clamped with the limiting bulge.
8. The centrifugal pump with a drain tank convenient to detach of claim 1, wherein: the inner wall thickness of the upper end part of the connecting shaft sleeve is larger than that of the lower end part of the connecting shaft sleeve, and the connecting surface of the upper end part of the connecting shaft sleeve and the lower end part of the connecting shaft sleeve is an inclined plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121638767.9U CN215444414U (en) | 2021-07-19 | 2021-07-19 | Convenient to detach type centrifugal pump with water drainage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121638767.9U CN215444414U (en) | 2021-07-19 | 2021-07-19 | Convenient to detach type centrifugal pump with water drainage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215444414U true CN215444414U (en) | 2022-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121638767.9U Active CN215444414U (en) | 2021-07-19 | 2021-07-19 | Convenient to detach type centrifugal pump with water drainage tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215444414U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114412822A (en) * | 2022-01-20 | 2022-04-29 | 宜兴市宙斯泵业有限公司 | Coupling mechanism capable of preventing axial movement and centrifugal pump thereof |
| CN114439757A (en) * | 2022-01-20 | 2022-05-06 | 宜兴市宙斯泵业有限公司 | Vertical direct-connection side-suction centrifugal pump |
-
2021
- 2021-07-19 CN CN202121638767.9U patent/CN215444414U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114412822A (en) * | 2022-01-20 | 2022-04-29 | 宜兴市宙斯泵业有限公司 | Coupling mechanism capable of preventing axial movement and centrifugal pump thereof |
| CN114439757A (en) * | 2022-01-20 | 2022-05-06 | 宜兴市宙斯泵业有限公司 | Vertical direct-connection side-suction centrifugal pump |
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