Rotary suspension device

Abstract

The utility model provides a rotary suspension device. The rotary suspension device comprises a shell, an end cover, a suspension assembly and a wear-resistant ring, the suspension assembly is arranged in the shell; two ends of the shell are respectively provided with an end cover; the shell is fixedly connected with the end cover; a through hole is formed in a central shaft of the end cover; the circle centers of the two end cover through holes are arranged on the same axis; the wear-resistant ring is embedded in the through hole of the end cover; and the suspension assembly penetrates through the wear-resistant ring. The suspension device can be suitable for the suspension technology in different application scenes, the suspension stability is effectively improved, the problem that the energy consumption of the suspension device is large is solved, the cost is reduced, the production efficiency is improved, machining and assembling are easy, and the high-speed running use environment is met.

Description

Technical Field

[0001] The utility model belongs to the technical field of suspension devices, and particularly relates to a rotating suspension device. Background Art

[0002] A suspension device is a device that can suspend an object in the air without contact and friction. Currently, suspension technology mainly utilizes principles such as electromagnetic force, magnetic force, and aerodynamics to generate a force that counteracts the gravity of the object, enabling the object to achieve suspension. It mainly includes magnetic levitation technology, air cushion suspension technology, acoustic levitation technology, etc. Among them, magnetic levitation technology is the most widely used one at present, such as maglev trains. However, suspension technology still faces some challenges, such as issues of suspension stability, energy consumption, and cost. In addition, the applicability of different suspension technologies in different application scenarios also needs further research. Content of the Utility Model

[0003] The purpose of the utility model is to provide a rotating suspension device, which solves the technical problems of instability, high energy consumption, and high cost of suspension technology.

[0004] To achieve the above purpose, the technical solution of the utility model is: a rotating suspension device, comprising a housing, end caps, a suspension assembly, and wear-resistant rings; the suspension assembly is arranged inside the housing; end caps are respectively arranged at both ends of the housing; the housing is fixedly connected to the end caps; through holes are arranged on the central axes of the end caps; the centers of the through holes of the two end caps are arranged on the same axis; the wear-resistant rings are embedded in the through holes of the end caps; the suspension assembly passes through the wear-resistant rings.

[0005] Further, the suspension assembly includes a rotating shaft, annular permanent magnets, and spacer rings; at least two annular permanent magnets are sleeved outside the rotating shaft; a spacer ring is arranged between the two annular permanent magnets at intervals.

[0006] Further, the rotating shaft is composed of an inner shaft portion, an outer shaft portion, and a wheel shaft portion; the outer shaft portion is a hollow cylindrical shape and is sleeved on the inner shaft portion; the wheel shaft portion is a hollow disc shape; the wheel shaft portion is sleeved on the outer shaft portion.

[0007] Further, a plurality of the wheel shaft portions are equidistantly sleeved on the outer shaft portion.

[0008] Further, the inner diameter of the annular permanent magnet is greater than the outer diameter of the outer shaft portion; the inner diameter of the spacer ring is greater than the outer diameter of the wheel shaft portion; the wheel shaft portion is placed in the gap between the annular permanent magnets; the axial and radial clearance fit between the wear-resistant ring and the end cap is smaller than the clearance between the rotating shaft and the annular permanent magnet.

[0009] Further, the fixed connection is that threaded holes are provided on the end face of the housing; threaded through holes corresponding thereto are provided on the end cover; the threaded holes and the threaded through holes are matched with screws.

[0010] Further, a self-lubricating coating is applied to the through hole of the end cover.

[0011] Further, the wear-resistant ring is made of ceramic.

[0012] The beneficial effects of the present utility model are as follows: The suspension technology can be applied in different application scenarios, effectively improving the stability of suspension, solving the problem of large energy consumption of the suspension device, reducing costs, improving production efficiency, being simple in processing and assembly, and meeting the use environment of high-speed operation. Description of the Drawings

[0013] Figure 1 is a structural schematic diagram of the present utility model;

[0014] Figure 2 is a magnetic field distribution diagram of the annular permanent magnet of the present utility model;

[0015] In the figure: 1. Housing, 2. Spacer, 3. End cover, 4. Annular permanent magnet, 5. Wear-resistant ring, 6. Rotating shaft, 7. Screw, 8. Inner shaft part, 9. Outer shaft part, 10. Wheel shaft part. Detailed Embodiments

[0016] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0017] As shown in the figure, an embodiment of the present utility model provides a rotating magnetic levitation device, which includes a housing 1, an end cover 3, a levitation assembly and a wear-resistant ring 5; the levitation assembly is arranged in the housing 1; end covers 3 are respectively arranged at both ends of the housing 1; the housing 1 and the end cover 3 are fixedly connected; a through hole is provided on the central axis of the end cover 3; the centers of the through holes of the two end covers 3 are arranged on the same axis; the wear-resistant ring 5 is embedded in the through hole of the end cover 3; the levitation assembly passes through the wear-resistant ring 5.

[0018] Further, the levitation assembly includes a rotating shaft 6, an annular permanent magnet 4 and a spacer 2; at least two annular permanent magnets 4 are sleeved outside the rotating shaft 6; the two annular permanent magnets 4 are spaced by a spacer 2.

[0019] Further, the rotating shaft 6 is composed of an inner shaft portion 8, an outer shaft portion 9, and a wheel shaft portion 10; the outer shaft portion 9 is a hollow cylindrical shape and is sleeved on the inner shaft portion 8; the wheel shaft portion 10 is a hollow disc shape; the wheel shaft portion 10 is sleeved on the outer shaft portion 9.

[0020] Further, a plurality of the wheel shaft portions 10 are equidistantly sleeved on the outer shaft portion 9.

[0021] Further, the inner diameter of the annular permanent magnet 4 is greater than the outer diameter of the outer shaft portion 9; the inner diameter of the spacer ring 2 is greater than the outer diameter of the wheel shaft portion 10; the wheel shaft portion 10 is placed in the gap between the annular permanent magnets 4; the axial and radial clearance between the wear-resistant ring 5 and the end cover 3 is smaller than the clearance between the rotating shaft 6 and the annular permanent magnet 4.

[0022] Further, the fixed connection is that threaded holes are provided on the end face of the housing 1; threaded through holes corresponding to them are provided on the end cover 3; the threaded holes and the threaded through holes are matched with the screws 7.

[0023] Further, the through hole of the end cover 3 is coated with a self-lubricating coating.

[0024] Further, the material of the wear-resistant ring 5 is ceramic.

[0025] It should be noted that this suspension device mainly utilizes Lenz's law. The material of the shaft 6 is copper, and a plurality of annular copper plates are evenly distributed on it. At each interval between the copper plates is an annular permanent magnet 4. The annular permanent magnets 4 are separated by the spacer ring 2. Its exterior is the housing 1 to ensure that multiple magnets form an assembly. Both ends of the housing 1 are end covers 3 for pressing the magnets. The inner hole of the end cover 3 is coated with a self-lubricating coating. Corresponding wear-resistant ceramic rings 5 are embedded at both ends of the rotating shaft 6. At the same time, the axial and radial clearance between the wear-resistant ring 5 and the end cover 3 is smaller than the clearance between the rotating shaft 6 and the annular permanent magnet 4.

[0026] When the rotating shaft 6 rotates, due to Lenz's law, an induced current will be generated inside the rotating shaft 6, and the magnetic field generated by it will resist the gravity, centrifugal force, etc. of the rotating shaft 6, causing axial and radial deviations of the rotating shaft 6, and ensuring that the rotating shaft 6 is suspended at the center of the entire device. Both ends of the rotating shaft 6 are wear-resistant rings 5, and their function is to provide axial and radial support for the rotating shaft 6 when it rotates at a low speed. As the rotational speed of the rotating shaft 6 gradually increases, the magnetic field generated to resist it will also gradually increase. When the rotational speed reaches a certain level, the magnetic field generated to resist it will offset the gravity and centrifugal force of the rotating shaft 6, and finally the rotating shaft 6 will be suspended.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rotational suspension device, characterized in that: It includes a housing, end caps, a suspension assembly, and wear-resistant rings; the suspension assembly is arranged inside the housing; end caps are respectively arranged at both ends of the housing; the housing and the end caps are fixedly connected; through holes are arranged on the central axes of the end caps; the centers of the through holes of the two end caps are arranged on the same axis; the wear-resistant rings are embedded in the through holes of the end caps; the suspension assembly passes through the wear-resistant rings.

2. The rotational suspension device according to claim 1, wherein: The suspension assembly includes a rotating shaft, annular permanent magnets, and spacer rings; at least two annular permanent magnets are sleeved outside the rotating shaft; the two annular permanent magnets are spaced by a spacer ring.

3. The rotational suspension device according to claim 2, characterized in that: The rotating shaft is composed of an inner shaft portion, an outer shaft portion, and a wheel shaft portion; the outer shaft portion is a hollow cylindrical shape and is sleeved on the inner shaft portion; the wheel shaft portion is a hollow disc shape; the wheel shaft portion is sleeved on the outer shaft portion.

4. The rotational suspension device according to claim 3, wherein: A number of the wheel shaft portions are equidistantly sleeved on the outer shaft portion.

5. The rotational suspension device according to claim 3, characterized in that: The inner diameter of the annular permanent magnet is larger than the outer diameter of the outer shaft portion; the inner diameter of the spacer ring is larger than the outer diameter of the wheel shaft portion; the wheel shaft portion is placed in the gap between the annular permanent magnets; the axial and radial mating clearance between the wear-resistant ring and the end cap is smaller than the clearance between the rotating shaft and the annular permanent magnet.

6. The rotational suspension device according to claim 1, wherein: The fixed connection is that threaded holes are arranged on the end face of the housing; threaded through holes corresponding to them are arranged on the end caps; the threaded holes and the threaded through holes are matched with screws.

7. The rotational suspension device according to claim 1, wherein: The through holes of the end caps are coated with a self-lubricating coating.

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