Gyromagnetic therapeutic apparatus

Abstract

The utility model discloses a gyromagnetic therapeutic apparatus, which belongs to the field of magnetic therapy equipment, and comprises a motor and a gyromagnetic assembly, the motor comprises a motor rotor, a motor base, a motor main shaft, a motor bearing, a bearing inner ring, a bearing end cover and a shaft end retainer ring, and a pair of suspension magnets is arranged at the end part of the motor bearing. The two suspension magnets are respectively an upper suspension magnet and a lower suspension magnet, and the same polarity of the upper suspension magnet and the lower suspension magnet are oppositely arranged; according to the utility model, the suspension magnets of which the same poles are oppositely arranged are adopted to generate repulsive force, the motor main shaft and the bearing inner ring are upwards supported, downward gravity generated by the gyromagnetic assembly is reduced or counteracted, and the abrasion of the bearing is reduced, so that the noise of the whole machine is reduced, and the service life of the bearing is effectively prolonged.

Description

Technical Field

[0001] This utility model relates to the field of magnetic therapy equipment technology, and in particular to a rotating magnetic therapy device. Background Technology

[0002] The mechanism of action of the rotating magnetic therapy device is mainly based on the influence of magnetic fields on the human body. Magnetic fields can alter the physiological and biochemical processes of tissue cells by affecting the distribution of electric currents, the movement of charged particles, and the permeability of membrane systems, generating certain biocurrents, changing cell activity, and thus producing a series of therapeutic effects. Its working principle is as follows: a miniature DC brushless motor rotor drives the rotating magnetic component to generate an alternating magnetic field, which is then used to treat diseases. Its functions and effects include: relieving pain, reducing swelling, and promoting blood circulation, etc.

[0003] The structure of commonly used magnetic field therapy devices is as follows: Figure 1 As shown, it includes a rotating magnetic assembly 1 and a motor (composed of components numbered 2, 3, 4, 5, etc.). The motor includes a motor spindle 13, which is locked with a cover plate 14 and screws 15. The rotating magnetic assembly 1 is mounted on the motor spindle 13. A motor bearing 10 is provided at the lower part of the motor 12. The motor bearing 10 is a radial ball bearing. The motor 12 drives the rotating magnetic assembly 1 to rotate, forming a rotating dynamic magnetic field with alternating N and S.

[0004] This type of magnetic therapy device has at least the following problems: When the motor 12 is rotating, the motor bearing 10 not only has to bear radial load, but also a large axial (downward) load generated by gravity. However, the inherent characteristic of the motor bearing 10 is that it mainly bears radial load and can only bear a small axial gravity load. The magnetic component 1 and the motor rotor weigh about 2KG, which exceeds the range of axial load that this small ball bearing (due to space limitations, only this kind of quiet-grade small radial ball bearing can be selected) can bear. If it rotates for a long time, the wear of the bearing will be accelerated, resulting in increased bearing noise and shortened bearing life. In actual tests, under the same conditions, after 1000 hours of continuous operation at 600 rpm, the noise increased significantly by more than 5 decibels, which does not meet the usage requirements. Summary of the Invention

[0005] The purpose of this invention is to provide a magnetic field therapy device to solve the above-mentioned problems.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a rotating magnetic therapy device includes a motor and a rotating magnetic assembly. The motor includes a motor rotor, a motor base, a motor main shaft, a motor bearing, a bearing inner ring, and a bearing end cover. A pair of suspended magnets, namely an upper suspended magnet and a lower suspended magnet, are provided at the end of the motor bearing. The upper suspended magnet and the lower suspended magnet are arranged opposite each other with the same polarity.

[0007] As a preferred technical solution, the upper levitation magnet is integrated with the motor main shaft and the inner ring of the bearing.

[0008] As a further preferred technical solution, the upper levitation magnet is provided with mounting holes and is connected to the motor main shaft and bearing inner ring by upper levitation magnet fixing screws.

[0009] As a preferred technical solution, the lower levitation magnet is mounted on the bearing end cover and fixed to the motor base as a single unit by the bearing end cover fixing screws. The lower levitation magnet remains stationary relative to the upper levitation magnet.

[0010] As a preferred technical solution, the gap between the upper levitation magnet and the lower levitation magnet is 0.5mm to 2mm.

[0011] To reduce overall machine noise, extend bearing life, and overcome bearing wear caused by gravity, this invention adds a pair of opposing levitation magnets of the same polarity to the inner ring of the bearing (end of the bearing spindle). The upper levitation magnet has a hole in the middle and is fixed to the inner ring of the bearing with screws, rotating with the spindle and the inner ring of the bearing as a whole. The lower levitation magnet is fixed to the bearing end cover and remains stationary. The opposing magnets of the same polarity generate a repulsive force between them, causing the spindle and the inner ring of the bearing to be subjected to an upward thrust. This upward thrust counteracts the gravity generated by the vortex magnet assembly, levitizing the vortex magnet assembly and reducing or canceling the axial force on the bearing. This pair of opposing magnets of the same polarity is equivalent to a pair of end-face bearings without direct contact.

[0012] Compared with the prior art, the advantages of this utility model are as follows: This utility model uses suspended magnets with the same poles installed opposite each other to generate a repulsive force, which lifts the motor main shaft and the inner ring of the bearing upward, reducing or offsetting the downward gravity generated by the rotating magnet assembly, thereby reducing the noise of the whole machine, reducing the wear of the bearing, and effectively extending the service life of the bearing; compared with the prior art under the same conditions, the structure of this utility model can operate continuously for at least 6000 hours, greatly extending the service life of the bearing, while the noise remains unchanged, meeting the usage requirements. Attached Figure Description

[0013] Figure 1 This is a structural diagram of a conventional magnetic field therapy device.

[0014] Figure 2 This is an overall structural diagram of the present invention;

[0015] Figure 3 for Figure 2 Enlarged view of a portion of the suspended magnet;

[0016] Figure 4 for Figure 3 Axial force analysis diagram of the bearing;

[0017] In the diagram: 1. Rotary magnet assembly; 2. Motor rotor; 3. Motor base; 4. Power cord; 5. Bearing end cover; 6. Bearing spindle; 7. Upper levitation magnet; 8. Lower levitation magnet; 9. Upper levitation magnet fixing screw; 10. Motor bearing; 11. Bearing end cover fixing screw; 12. Shaft end retaining ring; 13. Motor spindle; 14. Cover plate; 15. Screw; 16. Bearing inner ring. Detailed Implementation

[0018] The present invention will be further described below with reference to the embodiments.

[0019] Example:

[0020] See Figure 2 and Figure 3 A magnetic rotation therapy device includes a motor and a magnetic rotation assembly 1. The motor includes a motor rotor 2, a motor base 3, a motor main shaft 13, a motor bearing 10, a bearing inner ring 16, and a bearing end cover 5. A pair of suspended magnets, namely an upper suspended magnet 7 and a lower suspended magnet 8, are provided at the end of the motor bearing 10. The upper suspended magnet 7 and the lower suspended magnet 8 are arranged opposite each other with the same polarity.

[0021] In this embodiment, the upper levitation magnet 7 is provided with mounting holes and is connected to the motor main shaft 13 and the bearing inner ring 16 as a whole by the upper levitation magnet fixing screw 9;

[0022] The lower levitation magnet 8 is mounted on the bearing end cover 5 and is fixed to the motor base 3 as a whole by the bearing end cover fixing screws 11.

[0023] The gap between the upper levitation magnet 7 and the lower levitation magnet 8 is 0.5mm to 2mm;

[0024] The magnets are installed with like poles facing each other (N to N or S to S) to generate a repulsive force. The two magnets interact with each other, creating a reverse repulsive force that lifts the motor spindle 13 and the bearing inner ring 16 upwards, reducing or offsetting the downward gravitational force generated by the gyromagnetic assembly. The force analysis is as follows: Figure 4 As shown in the figure, F represents the direction of the repulsive force.

[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A magnetic rotation therapy device, comprising a motor and a magnetic rotation assembly, wherein the motor includes a motor rotor, a motor base, a motor spindle, a motor bearing, a bearing inner ring, and a bearing end cover, characterized in that, A pair of levitation magnets, namely an upper levitation magnet and a lower levitation magnet, are provided at the end of the motor bearing. The upper levitation magnet and the lower levitation magnet are arranged opposite each other with the same polarity.

2. The magnetic field therapy device according to claim 1, characterized in that, The upper levitation magnet is integrated with the motor spindle and the inner ring of the bearing.

3. The magnetic field therapy device according to claim 2, characterized in that, The upper levitation magnet is provided with mounting holes and is connected to the motor main shaft and bearing inner ring by upper levitation magnet fixing screws.

4. The magnetic field therapy device according to claim 1, characterized in that, The lower levitation magnet is mounted on the bearing end cover and is fixed to the motor base as one unit by the bearing end cover fixing screws.

5. A magnetic field therapy device according to claim 1, characterized in that, The gap between the upper and lower suspending magnets is 0.5mm to 2mm.

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