CN212959135U - Two-stage magnetic pump - Google Patents
Two-stage magnetic pump Download PDFInfo
- Publication number
- CN212959135U CN212959135U CN202021494235.8U CN202021494235U CN212959135U CN 212959135 U CN212959135 U CN 212959135U CN 202021494235 U CN202021494235 U CN 202021494235U CN 212959135 U CN212959135 U CN 212959135U
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- pump
- bearing device
- shaft
- bearing
- impeller
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- 238000000926 separation method Methods 0.000 claims description 2
- 238000002955 isolation Methods 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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Abstract
一种双级磁力泵，包括有泵体、前泵盖、后泵盖、一级叶轮、二极叶轮、泵轴、轴承装置、内磁转子、隔离套、外磁转子、连接架、驱动轴，在泵体内的左泵腔与右泵腔的隔离环中心孔上设置左侧轴承装置，在后泵盖上设置右侧轴承装置，左侧轴承装置和右侧轴承装置分别由滑动轴承和止推轴承组成。制造方便，在两个叶轮中间设置轴承装置支撑，节省了在泵体隔离环与泵轴间设置轴密封环装置，呈叶轮‑轴承装置支撑‑叶轮‑轴承装置支撑排列结构，可减小泵轴挠性变形，提高了转子系运行平稳性，保证了轴承装置的使用寿命。
A two-stage magnetic pump, comprising a pump body, a front pump cover, a rear pump cover, a first-stage impeller, a two-pole impeller, a pump shaft, a bearing device, an inner magnetic rotor, an isolation sleeve, an outer magnetic rotor, a connecting frame, and a drive shaft , A left bearing device is arranged on the center hole of the isolation ring of the left pump cavity and the right pump cavity in the pump body, and a right bearing device is arranged on the rear pump cover. Push bearing composition. It is easy to manufacture, and the bearing device support is arranged between the two impellers, which saves the need to install the shaft sealing ring device between the pump body isolation ring and the pump shaft. The flexible deformation improves the running stability of the rotor system and ensures the service life of the bearing device.
Description
Technical Field
The utility model relates to a magnetic drive pump.
Background
The bipolar magnetic pump comprises a pump body, a front pump cover, a rear pump cover, a primary impeller, a bipolar impeller, a pump shaft, a bearing device, an inner magnetic rotor, an isolation sleeve, an outer magnetic rotor, a connecting frame and a driving shaft.
The pump shaft is matched and installed with the rear pump cover through the left side bearing device and the right side bearing device, the primary impeller and the secondary impeller are installed in the inner cavity of the pump body, and the primary impeller and the secondary impeller are fixedly installed and connected with the front end portion of the pump shaft in the inner cavity of the pump body. The left bearing device and the right bearing device are respectively composed of a sliding bearing and a thrust bearing, the sliding bearing rotatably supports the pump shaft, and the thrust bearing plays the roles of limiting and balancing the axial force.
Above-mentioned prior art bipolar magnetic drive pump left side bearing arrangement and right side bearing arrangement all are with back pump cover cooperation installation, and one-level impeller and second grade impeller are cantilever installation state in the pump body, in order to guarantee the rigidity of one-level impeller and dipolar impeller pivoted stability and pump shaft, then need thicken the pump shaft to the rigidity of reinforcing pump shaft prevents that the pump shaft from causing the pump shaft flexible deformation because of the cantilever is longer.
Because the pump shaft of the magnetic pump adopts the sliding bearing to rotatably support, and a certain gap is reserved between the shaft sleeve of the pump shaft and the sliding bearing, the pump shaft and the shaft system are in a certain floating state, and meanwhile, the pump shaft is in a cantilever state in the pump body, the impeller is often eccentric seriously when rotating in the actual operation of the pump, the vibration is caused to be large, and the accelerated damage of the bearing is easily caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a doublestage magnetic drive pump to overcome the pump shaft and be the cantilever state in the pump body, the eccentricity of impeller is serious, arouses vibrations big, problem with higher speed that the bearing damaged.
The utility model discloses bipolar magnetic drive pump, including the pump body, preceding pump cover, back pump cover, one-level impeller, dipolar impeller, pump shaft, bearing arrangement, interior magnetic rotor, separation sleeve, outer magnetic rotor, link, drive shaft, characterized by:
the left bearing device is arranged on the center hole of the isolating ring of the left pump cavity and the right pump cavity in the pump body, the right bearing device is arranged on the rear pump cover, and the left bearing device and the right bearing device respectively consist of a sliding bearing and a thrust bearing.
The utility model discloses simple structure, the processing is made conveniently, set up bearing arrangement and support in the middle of two impellers, saved and set up a sealing ring device between pump body isolating ring and pump shaft, be impeller-bearing arrangement support-impeller-bearing arrangement and support arrangement structure, overcome the pump shaft and be the cantilever in the pump body, one-level impeller and second grade impeller are cantilever installation state in the pump body, reduce pump shaft flexible deformation, the beat that produces when the impeller is rotatory reduces, improved rotor system operation stationarity, and guaranteed bearing arrangement's life.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
The utility model discloses bipolar magnetic drive pump, including the pump body 1, preceding pump cover 2, back pump cover 3, one-level impeller 4, dipolar impeller 5, pump shaft 6, bearing arrangement, interior magnetic rotor 8, spacer 9, outer magnetic rotor 10, link 11, drive shaft 12, characterized by:
a left bearing device 7a is arranged on a central shaft hole of a separating ring 1a of a left pump cavity and a right pump cavity in the pump body 1, and a right bearing device 7b is arranged on the rear pump cover 3;
the left bearing device 7a is composed of a left slide bearing 71a and a left thrust bearing 72 a;
the right bearing device 7b is composed of a right slide bearing 71b and a right thrust bearing 72 b.
Claims (1)
1. The utility model provides a doublestage magnetic drive pump, is including the pump body, preceding pump cover, back pump cover, one-level impeller, dipolar impeller, pump shaft, bearing arrangement, interior magnetic rotor, separation sleeve, outer magnetic rotor, link, drive shaft, characterized by:
the left bearing device is arranged on the center hole of the isolating ring of the left pump cavity and the right pump cavity in the pump body, the right bearing device is arranged on the rear pump cover, and the left bearing device and the right bearing device respectively consist of a sliding bearing and a thrust bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021494235.8U CN212959135U (en) | 2020-07-27 | 2020-07-27 | Two-stage magnetic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021494235.8U CN212959135U (en) | 2020-07-27 | 2020-07-27 | Two-stage magnetic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212959135U true CN212959135U (en) | 2021-04-13 |
Family
ID=75396219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021494235.8U Active CN212959135U (en) | 2020-07-27 | 2020-07-27 | Two-stage magnetic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212959135U (en) |
-
2020
- 2020-07-27 CN CN202021494235.8U patent/CN212959135U/en active Active
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant |