CN209856048U - Magnetic pump with integrated inner magnetic rotor and pump shaft - Google Patents
Magnetic pump with integrated inner magnetic rotor and pump shaft Download PDFInfo
- Publication number
- CN209856048U CN209856048U CN201920476859.8U CN201920476859U CN209856048U CN 209856048 U CN209856048 U CN 209856048U CN 201920476859 U CN201920476859 U CN 201920476859U CN 209856048 U CN209856048 U CN 209856048U
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- pump
- shaft
- thrust ring
- pump shaft
- magnetic rotor
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Abstract
The utility model discloses interior magnetic rotor and pump shaft integral type magnetic drive pump, including the pump body (1), pump cover (2), pump shaft (3), pump shaft sliding bearing device (4), install impeller (5) on the pump shaft end in the pump cavity, connect interior magnetic rotor (6) at the pump shaft rear end, with the sealed spacer sleeve (7) of fixed connection of pump cover, with pump cover butt joint fixed connection's drive shaft link (8), outer magnetic rotor (9) fixedly installed on the drive shaft end, characterized by that the rear end of pump shaft (3) is connected with interior magnetic rotor (6) center an organic whole, the shaping is once processed into shape with the lathe promptly; the pump shaft sliding bearing device (4) is composed of a shaft sleeve (41), a sliding bearing (42), a thrust ring seat (43), a left side thrust ring (44) and a right side thrust ring (45), and is simple in structure, good in coaxiality and dynamic balance precision, and safe and reliable in operation.
Description
Technical Field
The utility model relates to a magnetic drive pump, especially the magnetic drive pump that interior magnet rotor and pump shaft are as an organic whole of magnetic drive pump.
Background
The magnetic pump comprises a pump body, a pump cover, a main shaft sliding bearing device, an impeller arranged on the shaft end of the main shaft in the pump cavity, an inner magnetic rotor arranged at the rear end of the main shaft, an isolation sleeve fixedly connected with the pump cover in a sealing manner, a driving shaft connecting frame fixedly connected with the pump cover in a butt joint manner, and an outer magnetic rotor fixedly arranged on the shaft end of the driving shaft.
The magnetic pump in the prior art has the advantages that the inner magnetic rotor 5 and the main shaft 3 are of a split structure, and the inner magnetic rotor is matched with the shaft end of the main shaft through a central shaft hole and fixedly connected with the shaft end through a flat key and a locking nut; the main shaft is installed through the sliding bearing device and the thrust bearing device which are arranged on the left and the right, a rotor shaft system in the magnetic pump is complex in structure and more in matching surface, some parts such as the thrust bearing device belong to wearing parts, the assembly and maintenance difficulty is high, and the coaxiality and the dynamic balance precision are difficult to be fully ensured.
When the coaxiality and the dynamic balance of the shaft system are not good, the vibration of the whole shaft system can be increased, so that easily damaged parts such as a bearing, a shaft sleeve and the like made of conventional silicon carbide materials are easily damaged, further the parts of the whole shaft system are damaged, and the whole device is paralyzed.
SUMMERY OF THE UTILITY MODEL
The purpose of this new construction is to improve to the not enough of above-mentioned prior art, provides a simple structure, and axiality and dynamic balance precision are good, and the good reliability is convenient for assemble and the pump shaft integral type magnetic drive pump of maintenance.
The utility model discloses magnetic drive pump includes pump body 1, pump cover 2, pump shaft 3, pump shaft sliding bearing device 4, installs in the pump chamber pump shaft epaxial impeller 5, connect at the interior magnet rotor 6 of pump shaft rear end, with pump cover sealing fixed connection's spacer sleeve 7, with pump cover butt joint fixed connection's drive shaft link 8, fixed mounting at the epaxial outer magnet rotor 9 of drive shaft, characterized by:
the rear end of the pump shaft 3 is integrally connected with the center of the inner magnetic rotor 6; the rear end of the pump shaft 3 is integrally connected with the center of the inner magnetic rotor 6, and is formed by turning a forged piece or a casting blank by using a lathe for one time to machine the pump shaft 3 and the rotor seat 61 of the inner magnetic rotor 6, or inserting the shaft end of the pump shaft 3 into the central hole of the rotor seat 61 of the inner magnetic rotor 6 to be welded together and then machining and forming the shaft end by using the lathe for one time.
The pump shaft sliding bearing device 4 is composed of a shaft sleeve 41, a sliding bearing 42, a thrust ring seat 43, a left thrust ring 44 and a right thrust ring 45;
a thrust ring seat 43 is arranged between the impeller 5 and the shaft sleeve 41 on the pump shaft 3, a left thrust ring 44 is arranged on an inner spigot platform arranged on the thrust ring seat 43, and the right end face of the left thrust ring 44 is in sliding fit with the left end face of the sliding bearing 42; an annular groove 62 is formed in the rotor seat 61 of the inner magnetic rotor corresponding to the right end face of the sliding bearing 42, a right thrust ring 45 is arranged in the annular groove 62, and the left end face of the right thrust ring 45 is in sliding fit with the right end face of the sliding bearing 42.
The utility model discloses because of the rotor seat 61 of pump shaft 3 and interior magneto rotor 6 is made with lathe one-time car bits processing, so axiality and dynamic balance precision can obtain fully guaranteeing, make the rotation of shafting more steady, greatly reduced damages because of the pump shaft sliding bearing device that the rotation vibrations of shafting created, makes the operation of pump safe and reliable more.
Meanwhile, a single sliding bearing 42 and a thrust ring seat 43, a left thrust ring 44 and a right thrust ring 45 are adopted to cooperate with each other, so that the defects that double sliding bearing devices are multiple in components, complex in structure, inconvenient in device maintenance and easy to damage are overcome, the cooperation components and the cooperation surface are reduced to the minimum, the bearing device is safer and more reliable in operation, and convenient to assemble and maintain, and the length of the sliding bearing device can be greatly shortened and the length of a shaft system is shortened due to the fact that the pump shaft 3 and the inner magnetic rotor 6 are integrated and high in coaxiality and dynamic balance precision, so that the length of the whole device is reduced.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic view of the structure of the inner magnet rotor 6 and the pump shaft 3.
FIG. 3 is a schematic diagram of a pump shaft architecture.
Detailed Description
The utility model discloses magnetic drive pump includes pump body 1, pump cover 2, pump shaft 3, pump shaft sliding bearing device 4, installs in the pump chamber pump shaft epaxial impeller 5, connect at the interior magnet rotor 6 of pump shaft rear end, with pump cover sealing fixed connection's spacer sleeve 7, with pump cover butt joint fixed connection's drive shaft link 8, fixed mounting at the epaxial outer magnet rotor 9 of drive shaft, characterized by:
the rear end of the pump shaft 3 is integrally connected with the center of the inner magnetic rotor 6; the rear end of the pump shaft 3 is integrally connected with the center of the inner magnetic rotor 6, and is formed by turning a forged piece or a casting blank by using a lathe for one time to machine the pump shaft 3 and the rotor seat 61 of the inner magnetic rotor 6, or inserting the shaft end of the pump shaft 3 into the central hole of the rotor seat 61 of the inner magnetic rotor 6 to be welded together and then machining and forming the shaft end by using the lathe for one time.
The pump shaft sliding bearing device 4 is composed of a shaft sleeve 41, a sliding bearing 42, a thrust ring seat 43, a left thrust ring 44 and a right thrust ring 45;
a thrust ring seat 43 is arranged between the impeller 5 and the shaft sleeve 41 on the pump shaft 3, a left thrust ring 44 is arranged on an inner spigot platform arranged on the thrust ring seat 43, and the right end face of the left thrust ring 44 is in sliding fit with the left end face of the sliding bearing 42; an annular groove 62, namely an installation groove of the right thrust ring 45, is formed in the rotor seat 61 of the inner magnetic rotor corresponding to the right end face of the sliding bearing 42, the right thrust ring 45 is arranged in the annular groove 62, and the left end face of the right thrust ring 45 is in sliding fit with the right end face of the sliding bearing 42.
The left thrust ring 44 and the right thrust ring 45 are made of hard alloy, silicon carbide, ceramic and graphite materials, and are selected according to the chemical property and temperature of a medium.
Claims (1)
1. Interior magnetic rotor and pump shaft integral type magnetic drive pump, including the pump body (1), pump cover (2), pump shaft (3), pump shaft sliding bearing device (4), install impeller (5) on the pump shaft end in the pump chamber, connect interior magnetic rotor (6) at the pump shaft rear end, with pump cover seal fixed connection's spacer sleeve (7), with pump cover butt joint fixed connection's drive shaft link (8), fixed mounting is at the outer magnetic rotor (9) of drive shaft end, characterized by:
the rear end of the pump shaft (3) is integrally connected with the center of the inner magnetic rotor (6); the rear end of the pump shaft (3) is integrally connected with the center of the inner magnetic rotor (6), and the pump shaft (3) and the rotor seat (61) of the inner magnetic rotor (6) are machined by a forged piece or a casting blank through once turning by a lathe, or the shaft end of the pump shaft (3) is inserted into the center hole of the rotor seat (61) of the inner magnetic rotor (6) and welded together, and then the pump shaft is machined and formed by the lathe once;
the pump shaft sliding bearing device (4) is composed of a shaft sleeve (41), a sliding bearing (42), a thrust ring seat (43), a left thrust ring (44) and a right thrust ring (45);
a thrust ring seat (43) is arranged between an impeller (5) and a shaft sleeve (41) on a pump shaft (3), a left thrust ring (44) is arranged on an inner spigot platform arranged on the thrust ring seat (43), and the right end face of the left thrust ring (44) is in sliding fit with the left end face of a sliding bearing (42); an annular groove (62), namely an installation groove of a right thrust ring (45), is formed in the rotor seat (61) of the inner magnetic rotor corresponding to the right end face of the sliding bearing (42), the right thrust ring (45) is arranged in the annular groove (62), and the left end face of the right thrust ring (45) is in sliding fit with the right end face of the sliding bearing (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920476859.8U CN209856048U (en) | 2019-04-10 | 2019-04-10 | Magnetic pump with integrated inner magnetic rotor and pump shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920476859.8U CN209856048U (en) | 2019-04-10 | 2019-04-10 | Magnetic pump with integrated inner magnetic rotor and pump shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209856048U true CN209856048U (en) | 2019-12-27 |
Family
ID=68936747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920476859.8U Active CN209856048U (en) | 2019-04-10 | 2019-04-10 | Magnetic pump with integrated inner magnetic rotor and pump shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209856048U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253480A (en) * | 2020-10-20 | 2021-01-22 | 江苏旺源泵阀制造有限公司 | Rotating shaft connecting mechanism and magnetic pump |
-
2019
- 2019-04-10 CN CN201920476859.8U patent/CN209856048U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253480A (en) * | 2020-10-20 | 2021-01-22 | 江苏旺源泵阀制造有限公司 | Rotating shaft connecting mechanism and magnetic pump |
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