Magnetic suspension centrifugal fan impeller

Abstract

The utility model discloses a magnetic suspension centrifugal fan impeller, which relates to the technical field of fan impellers and comprises a first mounting plate, a second mounting plate fixedly connected to the side of the first mounting plate, a plurality of blades fixedly connected between the first mounting plate and the second mounting plate, and a pipe sleeve fixedly connected to the center of the first mounting plate. An axis rod is fixedly connected in the pipe sleeve, the pipe sleeve and the axis rod are fixedly connected through a mounting assembly, the pipe sleeve is mounted on the axis rod through the arranged mounting assembly, the first mounting hole corresponds to the fixing hole, and along with inward rotation of the fixing sleeve, the inner wall of the conical groove extrudes the limiting head, so that the lower end of the fixing rod slides into the fixing hole; and in the installation process, the limiting grooves in the side face of the fixing sleeve push the positioning heads upwards in sequence, and after the fixing sleeve moves to a proper position, the positioning heads move out of the corresponding limiting grooves, so that the fixing sleeve cannot rotate reversely, and the installation structure is more stable and not prone to loosening.

Description

Technical Field

[0001] The utility model relates to the technical field of fan impellers, in particular to a magnetic levitation centrifugal fan impeller. Background Art

[0002] A magnetic levitation blower is a mechanical device for transporting gas. It adopts core technologies such as magnetic levitation bearings, three-dimensional flow impellers, high-speed permanent magnet synchronous motors, high-efficiency frequency converters for speed regulation, and intelligent monitoring and control. When starting, it first levitates and then rotates, without friction and without lubrication. The three-dimensional flow impeller is directly connected to the rotor, and there is zero loss in transmission. In the prior art, the Chinese utility model with the publication number: CN217354883U discloses a high-efficiency centrifugal impeller of a magnetic levitation blower. The high-efficiency centrifugal impeller of this magnetic levitation blower realizes the convenient clamping and fixing of the impeller;

[0003] In this utility model, the rotation of the screw drives the pressing plates to approach each other, thereby clamping the shaft center. However, the screw is divided into several parts. When rotating a single screw, the other screws do not rotate, and it is not easy for the two pressing plates to approach each other. At the same time, operating multiple screws to rotate to make the pressing plates approach each other increases the operation difficulty, so improvement is needed. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a magnetic levitation centrifugal fan impeller to solve the problems put forward in the prior art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A magnetic levitation centrifugal fan impeller includes a first mounting plate. A second mounting plate is fixedly connected to the side position of the first mounting plate. A plurality of blades are fixedly connected between the first mounting plate and the second mounting plate. A sleeve is fixedly connected to the central position of the first mounting plate. A shaft center rod is fixedly connected inside the sleeve. The sleeve and the shaft center rod are fixedly connected through a mounting component. The mounting component includes a fixing sleeve, a fixing rod, a conical groove, a limiting groove, a limiting sleeve and a positioning head. The fixing sleeve is threadedly connected to the sleeve. The conical groove is opened at the rear position of the fixing sleeve. The fixing rod is movably installed in the conical groove. The limiting groove is opened at the front position of the fixing sleeve. The limiting sleeve is movably installed above the limiting groove. The positioning head is movably installed inside the limiting sleeve

[0007] Preferably, the mounting component further includes a screw hole, a first mounting hole and a fixing hole. The screw hole is opened in the fixing sleeve and is communicated with the conical groove. The first mounting hole is opened on the sleeve and is located inside the conical groove. The fixing hole is opened on the shaft center rod.

[0008] Preferably, the installation assembly further includes a limiting head, which is fixedly connected to the upper end of the fixing rod. The fixing rod is located in the first installation hole, and the lower end of the fixing rod is movably installed in the fixing hole.

[0009] Preferably, the installation assembly further includes a bracket, and both ends of the bracket are fixedly connected to the limiting sleeve and the pipe sleeve respectively.

[0010] Preferably, the installation assembly further includes an inclined surface and a movable rod. The inclined surface is opened at the lower part of the positioning head. One end of the movable rod is fixedly connected to the positioning head, and the movable rod is movably installed with the limiting sleeve.

[0011] Preferably, the installation assembly further includes a spring and a handle. The spring is located in the limiting sleeve. The spring is movably installed on the movable rod and is located above the positioning head. The handle is fixedly connected to the other end of the movable rod and is located above the limiting sleeve.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. Through the provided installation assembly, the pipe sleeve is installed on the shaft center rod. The first installation hole corresponds to the fixing hole. The fixing sleeve is movably connected to the shaft center rod through threads. As the fixing sleeve rotates inward and moves, the inner wall of the conical groove gradually presses the limiting head, so that the lower end of the fixing rod presses into the fixing hole, making the pipe sleeve and the shaft center rod fixedly connected, and facilitating the installation and disassembly of the pipe sleeve and the shaft center rod;

[0014] 2. Through the provided installation assembly, during the rotation of the fixing sleeve, the limiting groove on the fixing sleeve presses the inclined surface of the positioning head, so that the positioning head continuously moves up and down telescopically during the rotation of the fixing sleeve. When the fixing sleeve rotates to a suitable position, the positioning head snaps into the corresponding limiting groove, thereby clamping the fixing sleeve and preventing the fixing sleeve from rotating in the reverse direction, making the installation structure more stable and not easy to loosen. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of an impeller of a magnetic levitation centrifugal fan according to the present utility model;

[0016] Figure 2 is a schematic structural diagram of a pipe sleeve and a fixing sleeve of an impeller of a magnetic levitation centrifugal fan according to the present utility model;

[0017] Figure 3 is a schematic cross-sectional structural diagram of a fixing sleeve of an impeller of a magnetic levitation centrifugal fan according to the present utility model;

[0018] Figure 4 is a schematic cross-sectional structural diagram of a limiting sleeve of an impeller of a magnetic levitation centrifugal fan according to the present utility model.

[0019] Reference numerals in the figure: 1, the first mounting plate; 2, the blade; 3, the second mounting plate; 4, the pipe sleeve; 5, the central shaft rod; 6, the mounting assembly; 601, the fixed sleeve; 602, the screw hole; 603, the fixed rod; 604, the limiting head; 605, the first mounting hole; 606, the conical groove; 607, the fixing hole; 608, the limiting groove; 609, the bracket; 610, the limiting sleeve; 611, the positioning head; 612, the inclined surface; 613, the movable rod; 614, the spring; 615, the handle. Specific implementation mode

[0020] Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Embodiment: As Figures 1 to 4 shown, the present invention provides a technical solution for a magnetic levitation centrifugal fan impeller, including a first mounting plate 1. A second mounting plate 3 is fixedly connected to the side position of the first mounting plate 1. A plurality of blades 2 are fixedly connected between the first mounting plate 1 and the second mounting plate 3. A pipe sleeve 4 is fixedly connected to the central position of the first mounting plate 1. A central shaft rod 5 is fixedly connected inside the pipe sleeve 4. The pipe sleeve 4 and the central shaft rod 5 are fixedly connected through a mounting assembly 6. The mounting assembly 6 includes a fixed sleeve 601, a fixed rod 603, a conical groove 606, a limiting groove 608, a limiting sleeve 610 and a positioning head 611. The fixed sleeve 601 is threadedly connected to the pipe sleeve 4. The conical groove 606 is opened at the rear position of the fixed sleeve 601. The fixed rod 603 is movably installed in the conical groove 606. The mounting assembly 6 further includes a screw hole 602, a first mounting hole 605 and a fixing hole 607. The screw hole 602 is opened in the fixed sleeve 601, and the screw hole 602 communicates with the conical groove 606. The first mounting hole 605 is opened on the pipe sleeve 4 and is located inside the conical groove 606. The fixing hole 607 is opened on the central shaft rod 5. The mounting assembly 6 further includes a limiting head 604. The limiting head 604 is fixedly connected to the upper end position of the fixed rod 603. The fixed rod 603 is located in the first mounting hole 605, and the lower end of the fixed rod 603 can be movably installed in the fixing hole 607. The pipe sleeve 4 is threadedly connected to the central shaft rod 5 through the screw hole 602. When the first mounting hole 605 on the pipe sleeve 4 is aligned with the fixing hole 607 on the central shaft rod 5, by rotating the pipe sleeve 4, the conical groove 606 at the rear side position of the pipe sleeve 4 moves synchronously. The inner wall of the conical groove 606 presses against the limiting head 604, so that the limiting head 604 can push the fixed rod 603 inward, making the fixed rod 603 slide into the fixing hole 607 of the central shaft rod 5, so that the pipe sleeve 4 and the central shaft rod 5 are fixedly connected to each other, making it convenient to install the pipe sleeve 4 onto the central shaft rod 5.

[0022] The limiting groove 608 is formed at the front position of the fixed sleeve 601. The limiting sleeve 610 is movably installed above the limiting groove 608. The positioning head 611 is movably installed inside the limiting sleeve 610. The mounting assembly 6 further includes a bracket 609. The two ends of the bracket 609 are fixedly connected to the limiting sleeve 610 and the pipe sleeve 4 respectively. The mounting assembly 6 further includes an inclined surface 612 and a movable rod 613. The inclined surface 612 is formed at the lower position of the positioning head 611. One end of the movable rod 613 is fixedly connected to the positioning head 611, and the movable rod 613 is movably installed with the limiting sleeve 610. The mounting assembly 6 further includes a spring 614 and a handle 615. The spring 614 is located inside the limiting sleeve 610. The spring 614 is movably installed on the movable rod 613, and the spring 614 is located above the positioning head 611. The handle 615 is fixedly connected to the other end of the movable rod 613 and is located above the limiting sleeve 610. The limiting groove 608 on the side of the fixed sleeve 601 sequentially presses the inclined surface 612 of the positioning head 611, causing the positioning head 611 to contract in the limiting sleeve 610. The movable rod 613 of the positioning head 611 moves synchronously, causing the spring 614 on the movable rod 613 to be compressed. When the fixed sleeve 601 rotates to a suitable position, the positioning head 611 is movably installed in the corresponding limiting groove 608. One side of the positioning head 611 is provided with an inclined surface 612, and the other side remains perpendicular to the plane. When the fixed sleeve 601 rotates in the reverse direction, the limiting groove 608 and the positioning head 611 are stuck to each other, causing the fixed sleeve 601 to be fixedly connected to the pipe sleeve 4, maintaining the state of the conical groove 606, causing the inner wall of the conical groove 606 to keep pressing the limiting head 604, preventing the fixed rod 603 from moving out in the reverse direction, and making the fixed state more stable.

[0023] It should be noted that the present utility model is a magnetic levitation centrifugal fan impeller. When installing the sleeve 4 on the shaft rod 5, the first mounting hole 605 on the sleeve 4 corresponds to the fixing hole 607. A sliding head is provided at the lower end of the fixing rod 603. The sliding head is extruded by the shaft rod 5, causing the fixing rod 603 to move in the reverse direction, and the limiting head 604 to move in the reverse direction in the conical groove 606. When the first mounting hole 605 and the fixing hole 607 are aligned one by one, the fixing sleeve 601 is rotated sideways. The shaft rod 5 is provided with threads, and the fixing sleeve 601 is threadedly connected to the shaft rod 5 through the screw hole 602. As the fixing sleeve 601 rotates and moves, the limiting groove 608 on the side of the fixing sleeve 601 comes into contact with the positioning head 611 in sequence. The side wall of the limiting groove 608 squeezes the inclined surface 612 of the positioning head 611, causing the positioning head 611 to be pushed upward, so that the positioning head 611 moves upward in the limiting sleeve 610, and the movable rod 613 and the handle 615 move upward synchronously. The spring 614 is compressed by the positioning head 611, causing the positioning head 611 to continuously expand and contract upward. As the fixing sleeve 601 moves, the conical groove 606 moves synchronously, and the inner wall of the conical groove 606 continuously squeezes the limiting head 604, causing the limiting head 604 and the fixing rod 603 to move downward, so that the lower end of the fixing rod 603 is inserted into the fixing hole 607, fixing the sleeve 4 and the shaft rod 5 to each other. At this time, the limiting groove 608 at the appropriate position moves to the lower position of the positioning head 611, and the positioning head 611 is inserted into the limiting groove 608 at the lower position, thus locking the fixing sleeve 601 and making the fixing sleeve 601 not easy to loosen, maintaining the fixing effect of the sleeve 4 and the shaft rod 5.

[0024] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A magnetic levitation centrifugal fan impeller, comprising a first mounting plate (1), a second mounting plate (3) is fixedly connected to the side position of the first mounting plate (1), a plurality of blades (2) are fixedly connected between the first mounting plate (1) and the second mounting plate (3), a tube sleeve (4) is fixedly connected to the central position of the first mounting plate (1), and a shaft center rod (5) is fixedly connected in the tube sleeve (4), characterized in that: The sleeve (4) and the axial center rod (5) are fixedly connected through a mounting assembly (6). The mounting assembly (6) includes a fixing sleeve (601), a fixing rod (603), a conical groove (606), a limiting groove (608), a limiting sleeve (610), and a positioning head (611). The fixing sleeve (601) is threadedly connected to the sleeve (4). The conical groove (606) is opened at the rear position of the fixing sleeve (601). The fixing rod (603) is movably installed in the conical groove (606). The limiting groove (608) is opened at the front position of the fixing sleeve (601). The limiting sleeve (610) is movably installed above the limiting groove (608). The positioning head (611) is movably installed in the limiting sleeve (610).

2. The impeller of a magnetic levitation centrifugal fan according to claim 1, wherein: The mounting assembly (6) further includes a screw hole (602), a first mounting hole (605), and a fixing hole (607). The screw hole (602) is opened in the fixing sleeve (601), and the screw hole (602) communicates with the conical groove (606). The first mounting hole (605) is opened on the sleeve (4) and is located inside the conical groove (606). The fixing hole (607) is opened on the axial center rod (5).

3. The impeller of a magnetic levitation centrifugal fan according to claim 2, characterized in that: The mounting assembly (6) further includes a limiting head (604). The limiting head (604) is fixedly connected to the upper end of the fixing rod (603). The fixing rod (603) is located in the first mounting hole (605), and the lower end of the fixing rod (603) can be movably installed in the fixing hole (607).

4. A magnetic levitation centrifugal fan impeller according to claim 1, characterized in that: The mounting assembly (6) further includes a bracket (609). The two ends of the bracket (609) are respectively fixedly connected to the limiting sleeve (610) and the sleeve (4).

5. A magnetic levitation centrifugal fan impeller according to claim 1, characterized in that: The mounting assembly (6) further includes an inclined surface (612) and a movable rod (613). The inclined surface (612) is opened at the lower part of the positioning head (611). One end of the movable rod (613) is fixedly connected to the positioning head (611), and the movable rod (613) is movably installed with the limiting sleeve (610).

6. The impeller of a magnetic levitation centrifugal fan according to claim 5, characterized in that: The mounting assembly (6) further includes a spring (614) and a handle (615). The spring (614) is located inside the limiting sleeve (610). The spring (614) is movably installed on the movable rod (613) and is located above the positioning head (611). The handle (615) is fixedly connected to the other end of the movable rod (613) and is located above the limiting sleeve (610).

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