Magnetic power transmission device

The non-contact magnetic power transmission device, designed based on the principle of magnetic repulsion, solves the problems of gear friction and lubrication, improves power transmission efficiency and energy utilization, and achieves efficient power concentration and torque amplification.

CN121761090APending Publication Date: 2026-03-31徐千又 +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-30
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing power transmission devices suffer from significant power loss due to friction and collision between gear sets, and require lubrication maintenance, which affects efficiency and the environment.

Method used

The gear set is designed using the principle of magnetic repulsion to achieve non-contact power transmission. It utilizes the magnetic units of the force-applying wheel and the output wheel for power transmission, avoiding friction and collision and reducing the need for lubricating oil.

Benefits of technology

It improves power transmission efficiency, reduces energy loss, lowers maintenance costs, and can collect power during idling or idle to improve torque application efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a magnetic power transmission device, which comprises a gear set, at least one output wheel and at least one force application wheel, a transmission shaft is arranged at the axis of the output wheel, and a force application shaft is arranged at the axis of the force application wheel; output wheel teeth are distributed on the periphery of the output wheel, force application wheel teeth are distributed on the periphery of the force application wheel, and the diameter of the output wheel is larger than that of the force application wheel, so that the force application wheel pushes the output wheel teeth of the output wheel through the force application wheel teeth to carry out power transmission; a force application wheel magnetic unit is arranged on the surface of the force application wheel tooth, a force output wheel magnetic unit is arranged on the surface of the force output wheel tooth, and the force application wheel magnetic unit and the force output wheel magnetic unit are arranged in a homopolar face mode; the power generator is connected with the force application shaft and drives the force application shaft to rotate; and the load is connected to the transmission shaft, and the transmission shaft drives the load to work.
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Description

Technical Field

[0001] This invention pertains to a power transmission device, specifically a magnetic power transmission device that requires no lubrication, exhibits zero friction during high-speed operation between gear teeth, eliminates the need for a fully sealed lubrication tank, avoids concerns about lubrication leakage, and eliminates the need for lubrication replacement. This reduces energy transmission losses, improves work efficiency, and further enables the collection of waste energy to save energy. Background Technology

[0002] Modern people rely heavily on a large number of mechanical devices in their daily lives and work. These devices provide various convenient functions to meet human needs. With the advancement of science and technology, more practical devices will be introduced into the civilized world, making human life more comfortable and convenient.

[0003] To power a vast amount of machinery, humanity's demand for energy is increasing. However, since the main energy sources currently come from burning coal or fossil fuels, the process of obtaining energy significantly damages the Earth's environment, threatening the survival of humans and various other organisms. Therefore, there is a global consensus to reduce the consumption of coal and fossil fuels, increase the development of green energy, and improve the efficiency of equipment, allowing the Earth's environment to gradually recover its original ecology for the sustainable development of humankind.

[0004] Besides the aforementioned cost-saving measures, another significant factor contributing to energy waste cannot be ignored: power loss during transmission. It is well known that the operation of various mechanical devices relies on the transmission and conversion of power. During this process, in addition to the power actually driving the equipment, some unused power is lost, resulting in unnecessary energy waste. The main cause of this problem lies in the mechanical design of the power transmission system. Taking a common gear set as an example, power is transmitted through the meshing of the driving gear and the driven gear. During transmission, collisions or friction between the teeth are inevitable, preventing the smooth transmission of power. Furthermore, as the rotational speed of the gear set increases, not only does more loss occur, but the risk of friction or collision damage to the gear set also increases significantly, potentially posing safety hazards.

[0005] Therefore, existing power transmission devices, due to structural problems, are unable to solve the problem of unexpected power loss and must be improved to achieve better power transmission efficiency.

[0006] Furthermore, with the use of a large number of mechanical devices, various devices may experience idling or idle periods due to work processes. During these periods, power loss is inevitable. Although the amount of lost power is small, it is difficult for it to perform its actual function on its own, so it can only be allowed to dissipate naturally, resulting in power loss. To address this, the inventor conceived of a method that can concentrate this power to form a larger torque to drive the load, allowing every bit of power to effectively perform its function and making power use more efficient.

[0007] In view of the deficiencies in existing technology and the inventor's improvement plan, the inventor began to carry out research and development, and thus created a magnetic power transmission device with a simple structure, no need for lubrication, zero friction between the gear teeth when running at high speed, no need to install a fully sealed lubrication tank, no need to worry about lubricating oil leakage, and no need to replace lubricating oil, but can greatly improve work efficiency, hoping to contribute to environmental protection. Summary of the Invention

[0008] To overcome the above-mentioned shortcomings, the main objective of this invention is to provide a magnetic power transmission device that utilizes the principle of magnetic repulsion to enable non-contact power transmission between gears. This device requires no lubrication, and there is zero friction between the gears during high-speed operation. It eliminates the need for a fully sealed lubrication tank, avoids concerns about lubrication leakage, and eliminates the need for lubrication replacement, thereby reducing energy waste and improving power transmission efficiency.

[0009] Another object of the present invention is to provide a magnetic power transmission device that uses a small input power to concentrate and amplify torque to drive a large load, thereby making the application of power more efficient.

[0010] Another objective of this invention is to provide a magnetic power transmission device with a simple design principle, a robust and stable structure, no need for lubrication, zero friction between the gear teeth during high-speed operation, no need for a fully sealed lubrication tank, no need to worry about lubricating oil leakage, and no need to replace the lubricating oil. It can not only maintain continuous operation for a longer period of time, but also reduce maintenance cycles and costs.

[0011] Another object of the present invention is to provide a magnetic power transmission device that can further collect industrial waste energy, concentrate this power, and thus form a larger torque power to drive large loads, thereby achieving higher work efficiency.

[0012] To achieve the above objectives, the present invention provides a magnetic power transmission device, comprising:

[0013] A gear set includes at least one output gear and at least one applying gear. A drive shaft is disposed at the axis of the output gear, and an applying shaft is disposed at the axis of the applying gear. Output gear teeth are arranged around the periphery of the output gear, and applying gear teeth are arranged around the periphery of the applying gear. The diameter of the output gear is larger than the diameter of the applying gear, so that the applying gear teeth drive the output gear teeth of the output gear for power transmission. A magnetic unit is disposed on the surface of each applying gear tooth, and a magnetic unit is disposed on the surface of each output gear tooth. The magnetic units of the applying gear and the magnetic unit of the output gear are arranged facing each other with the same pole.

[0014] A power generator is connected to and drives the force-applying shaft to rotate; and

[0015] A load is connected to the drive shaft, and the drive shaft drives the load to work.

[0016] With the above configuration, when the present invention is used, power can be input through the force-applying wheel, and the power is transmitted through the force-applying wheel by the force-applying wheel teeth pushing the output wheel teeth of the output wheel. Then the power is output through the transmission shaft and drives the load to work.

[0017] Furthermore, the force-applying wheel magnetic unit includes a first force-applying wheel magnetic unit and a second force-applying wheel magnetic unit disposed at the front and rear ends of the force-applying wheel teeth. The output wheel magnetic unit also has a first output wheel magnetic unit and a second output wheel magnetic unit disposed at its two ends opposite to the first force-applying wheel magnetic unit and the second force-applying wheel magnetic unit. When the force-applying wheel rotates, the first force-applying wheel magnetic unit drives the first output wheel magnetic unit to move, while the second force-applying wheel magnetic unit and the second output wheel magnetic unit avoid friction and collision due to mutual repulsion.

[0018] Furthermore, the first force-applying wheel magnetic unit is located at the lower abdomen of the force-applying wheel tooth, while the first output wheel magnetic unit is located at the upper abdomen of the output wheel tooth. When the force-applying wheel tooth approaches the output wheel tooth, the first force-applying wheel magnetic unit and the first output wheel magnetic unit face each other with the largest area, thereby generating the maximum thrust.

[0019] Furthermore, the second force-applying wheel magnetic unit is located on the upper abdomen of the force-applying wheel tooth, and the second output wheel magnetic unit is located on the lower abdomen of the output wheel tooth, so that when the force-applying wheel tooth leaves the output wheel tooth, the second force-applying wheel magnetic unit and the second output wheel magnetic unit face each other with the largest area to avoid friction and collision.

[0020] Furthermore, the surfaces of the force-applying wheel teeth and the output wheel teeth are provided with notches to embed the relevant magnetic units of the force-applying wheel and the output wheel, respectively, and are secured with screws.

[0021] Furthermore, L-shaped pressure plates are provided on both sides of the force-applying wheel tooth and the output wheel tooth to strengthen the fixation of the magnetic unit of the force-applying wheel on the force-applying wheel tooth and the magnetic unit of the output wheel on the output wheel tooth, and are locked with screws.

[0022] Furthermore, the power generator is a high-efficiency motor or engine, which drives multiple force-applying wheels to rotate individually or simultaneously.

[0023] Furthermore, the load is a generator, and a brake and a flywheel energy storage unit are installed on the drive shaft in conjunction with the generator.

[0024] Furthermore, the gear set is installed in more than one set on the same drive shaft, with an anti-interference distance between each gear set, so that the power output of multiple gear sets is concentrated on the drive shaft.

[0025] The magnetic power transmission device of the present invention, designed as described above, has the following advantages compared with the prior art:

[0026] 1. This invention utilizes the principle of magnetic repulsion to enable non-contact power transmission between gears, eliminating the need for lubrication. During high-speed operation, there is zero friction between the gear teeth, eliminating the need for a fully sealed lubrication tank, concerns about lubrication leakage, and the need for lubrication replacement. This not only increases rotational speed and transmission efficiency but also reduces power loss due to friction or collisions, thus reducing energy consumption.

[0027] 2. This invention utilizes a small input power, which is amplified into a larger output torque, to drive large loads, such as generators, thereby improving the efficiency of power application and increasing practicality.

[0028] 3. The present invention has a simple structure, can be quickly and reliably assembled into the required size for stable power transmission, and is easy to maintain and repair, effectively reducing setup costs.

[0029] 4. This invention can collect small input power for centralized application, such as the residual power of various external mechanical equipment when idling or running, or from small power machinery, or even from the integrated motor of pure electric drive in new energy buses, and then concentrate and amplify the power for use, thereby improving the application efficiency of torque. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural view of the magnetic power transmission device of the present invention;

[0031] Figure 1a for Figure 1 Enlarged view of the structure of the force-applying gear teeth and the output gear teeth included in the frame line a;

[0032] Figure 2 This is a front view of the structure of the magnetic power transmission device of the present invention;

[0033] Figure 3 This is a schematic diagram of the power transmission between the force-applying gear teeth and the output gear teeth of the magnetic power transmission device of the present invention;

[0034] Figure 3a for Figure 3 Enlarged view of the structural configuration of the force-applying magnetic unit and the output magnetic unit included in frame line b;

[0035] Figure 4 A three-dimensional view of the magnetic power transmission device of the present invention, which is provided with an L-shaped pressure plate to enhance stability;

[0036] Figure 4a for Figure 4 Enlarged view of the structural configuration of the L-shaped pressure plate included by frame line c;

[0037] Figure 5 A front view of the structure of the magnetic power transmission device of the present invention, which includes an L-shaped pressure plate; and

[0038] Figure 6 This is a perspective view of the structure of the magnetic power transmission device of the present invention, which simultaneously incorporates multiple gear sets to increase efficiency.

[0039] Explanation of reference numerals in the attached figures:

[0040] 100: Gear set;

[0041] 110: Output wheel;

[0042] 111: Drive shaft;

[0043] 112: Output gear teeth;

[0044] 113: Output wheel magnetic unit;

[0045] 113a: Magnetic unit of the first output wheel;

[0046] 113b: Magnetic unit for the second output wheel;

[0047] 114: Screw;

[0048] 115: L-shaped pressure plate;

[0049] 116: Screw;

[0050] 120: Force-applying wheel;

[0051] 121: Force-applying axis;

[0052] 122: Force-applying gear teeth;

[0053] 123: Magnetic unit for applying force;

[0054] 123a: First force-applying wheel magnetic unit;

[0055] 123b: Second force-applying wheel magnetic unit;

[0056] 124: Screw;

[0057] 125: L-shaped pressure plate;

[0058] 126: Screw;

[0059] 200: Power generator;

[0060] 300: Load;

[0061] 400: Brake unit;

[0062] 500: Energy storage unit;

[0063] 600: Base. Detailed Implementation

[0064] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more explicit definition of the scope of protection of the present invention.

[0065] Please see Figures 1 to 3a As shown, a magnetic power transmission device provided by the present invention mainly comprises at least one gear set 100, a power generator 200, and a load 300.

[0066] The gear set 100 has at least one output wheel 110 and at least one force-applying wheel 120. In this embodiment, four force-applying wheels 120 are used. A transmission shaft 111 is provided at the axis of the output wheel 110, and a force-applying shaft 121 is provided at the axis of the force-applying wheel 120. Output wheel teeth 112 are arranged around the periphery of the output wheel 110, and force-applying wheel teeth 122 are arranged around the periphery of the force-applying wheel 120. The diameter of the output wheel 110 is larger than the diameter of the force-applying wheel 120, so that the force-applying wheel 120 drives the output wheel teeth 112 of the output wheel 110 to transmit power through the force-applying wheel teeth 122. A force-applying wheel magnetic unit 123 is provided on the surface of the force-applying wheel teeth 122, and an output wheel magnetic unit 113 is provided on the surface of the output wheel teeth 112. The force-applying wheel magnetic unit 123 and the output wheel magnetic unit 113 are arranged facing each other with the same pole.

[0067] The power generator 200 can be any device that generates power. In this embodiment, an electric motor is used. The power generator 200 is connected to and drives the force-applying shaft 121 to rotate. Depending on the power or limitations, one power generator 200 can drive one force-applying wheel 120, or one power generator 200 can drive multiple force-applying wheels 120. In this embodiment, one power generator 200 drives two force-applying wheels 120 for ease of explanation.

[0068] The load 300 is any mechanical device, in this case a generator, and is connected to the drive shaft 111, which drives the load 300 to work.

[0069] When the present invention is in use, the power generator 200 first drives the force wheel 120 to rotate via the force shaft 121. The force wheel 120 then pushes the output wheel 110 with the output wheel teeth 122 to transmit power. Then the output wheel 110 outputs power from the transmission shaft 111, thereby driving the load 300 to work.

[0070] This invention particularly emphasizes the design of non-contact magnetic power transmission, which requires no lubrication, has zero friction between the gear teeth during high-speed operation, eliminates the need for a fully sealed lubrication tank, eliminates concerns about lubrication leakage, and eliminates the need for lubrication replacement. To increase and maintain the stable rotational speed of the force-applying wheel 120, the continuity between the magnetic unit 123 of the force-applying wheel and the magnetic unit 113 of the output wheel must be ensured. For this purpose, please refer to [the relevant documentation / reference needed]. Figure 3 , Figure 3a As shown, the present invention configures the force-applying wheel magnetic unit 123 as a first force-applying wheel magnetic unit 123a and a second force-applying wheel magnetic unit 123b at the front and rear ends of the force-applying wheel tooth 122, and the output wheel magnetic unit 113 is provided with a first output wheel magnetic unit 113a and a second output wheel magnetic unit 113b at both ends opposite to the first force-applying wheel magnetic unit 123a and the second force-applying wheel magnetic unit 123b.

[0071] As designed above, when the force-applying wheel 120 rotates, the first force-applying wheel magnetic unit 123a gradually approaches and pushes the first output wheel magnetic unit 113a due to the repulsion of like poles. This continues for a period of time until the first force-applying wheel magnetic unit 123a moves away from the first output wheel magnetic unit 113a, and then the cycle repeats. The second force-applying wheel magnetic unit 123b and the second output wheel magnetic unit 113b do not participate in the pushing action, but they can avoid friction and collision due to the repulsion of like poles, maintaining the rotational stability of the force-applying wheel 120 and the output wheel 110, thereby increasing the rotational speed and power transmission efficiency.

[0072] In a further design, the first force-applying wheel magnetic unit 123a is located on the lower abdomen of the force-applying wheel tooth 122, while the first output wheel magnetic unit 113a is located on the upper abdomen of the output wheel tooth 112. This design is due to the fact that the diameter of the force-applying wheel 120 is smaller than that of the output wheel 110, so the rotation speed of the force-applying wheel 120 is faster and the included angle changes more. When the front end of the force-applying wheel tooth 122 approaches the rear end of the opposite output wheel tooth 112 with the largest area, the first force-applying wheel magnetic unit 123a and the first output wheel magnetic unit 113a can be made to face each other with the largest area to generate the maximum thrust.

[0073] Similarly, the second force-applying wheel magnetic unit 123b is located on the upper abdomen of the force-applying wheel tooth 122, and the second output wheel magnetic unit 113b is located on the lower abdomen of the output wheel tooth 112, so that when the force-applying wheel tooth 122 leaves the output wheel tooth 112, the second force-applying wheel magnetic unit 123b and the second output wheel magnetic unit 113b face each other with the largest area to avoid friction and collision.

[0074] In addition, to facilitate the assembly, maintenance, or replacement of the present invention, the force-applying wheel tooth 122 has a notch on its surface, and the force-applying wheel magnetic unit 123 is installed in an embedded manner and secured with a screw 124. Similarly, the output wheel tooth 112 has a notch on its surface, and the corresponding output wheel magnetic unit 113 is embedded therein, and then secured with a screw 114.

[0075] Please see Figure 4 , Figure 4a , Figure 5 As shown, to further strengthen the structure, L-shaped pressure plates 125 are provided on both sides of the force-applying gear tooth 122 to press the force-applying magnetic unit 123 onto the force-applying gear tooth 122 and lock it with screws 126 to strengthen the fixation of the force-applying magnetic unit 123 onto the force-applying gear tooth 122. Similarly, L-shaped pressure plates 115 are provided on both sides of the output gear tooth 112 to press the output gear magnetic unit 113 onto the output gear tooth 112 and lock it with screws 116 to strengthen the fixation of the output gear magnetic unit 113 onto the output gear tooth 112.

[0076] In addition to the electric motor in this embodiment, the power generator 200 can also be a fuel engine, or the residual power from external mechanical equipment idling or running, or a geothermal engine, or even an integrated electric motor for pure electric drive of new energy buses. It can also be a power source such as solar or wind power used in homes, concentrating the smaller power onto the force wheel 120 and then amplifying the torque through the output wheel 110 to achieve a more practical function.

[0077] Please see Figure 1 , Figure 4 , Figure 5 As shown, in this embodiment, the load 300 is a generator. Therefore, a brake 400 can be provided on the drive shaft 111 to stop the generator from operating, and an energy storage unit 500 can be provided on the drive shaft 111 and assembled on a base 600 for use. The energy storage unit 500 can be a simple flywheel structure, utilizing weight inertia to achieve energy storage. More control structures can be designed in conjunction with the brake 400 and the energy storage unit 500, but these designs are not required by this invention and will not be described in detail here.

[0078] Please see Figure 6 As shown in the foregoing embodiment, the gear set 100 operates as a single set. In practical applications, more than one set of the gear set 100 can be simultaneously installed on the same drive shaft 111. Each gear set 100 is separated by an anti-interference distance so that the magnetic forces of two adjacent sets of gear sets 100 do not interfere with each other, and the power output of multiple sets of gear sets 100 is concentrated and sent to the drive shaft 111.

[0079] The above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable those skilled in the art to understand the content of the present invention and implement it. They should not be used to limit the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A magnetic power transmission device, characterized by, Comprising: a gear set having at least one output wheel and at least one force wheel, the output wheel having a transmission shaft arranged at the center of the output wheel, the force wheel having a force shaft arranged at the center of the force wheel; the output wheel having a plurality of output wheel teeth arranged at the periphery of the output wheel, the force wheel having a plurality of force wheel teeth arranged at the periphery of the force wheel, and the diameter of the output wheel teeth being greater than the diameter of the force wheel teeth, so that the force wheel teeth push the output wheel teeth to transmit power; the surface of the force wheel teeth being provided with force wheel magnetic units, and the surface of the output wheel teeth being provided with output wheel magnetic units, the force wheel magnetic units and the output wheel magnetic units being arranged in the same polar surface; a power generator connected to the force shaft to drive the force shaft to rotate; and a load connected to the transmission shaft to drive the load to work.

2. The magneto-motive transmission device of claim 1, wherein, The force wheel magnetic units include first force wheel magnetic units and second force wheel magnetic units arranged at the front and back ends of the force wheel teeth, and the output wheel magnetic units include first output wheel magnetic units and second output wheel magnetic units arranged at the front and back ends of the output wheel teeth opposite the first force wheel magnetic units and the second force wheel magnetic units; when the force wheel rotates, the first force wheel magnetic units push the first output wheel magnetic units to move, and the second force wheel magnetic units and the second output wheel magnetic units avoid friction and collision due to mutual repulsion.

3. The magneto-motive transmission device of claim 2, wherein, The first force wheel magnetic units are arranged at the lower abdominal position of the force wheel teeth, and the first output wheel magnetic units are arranged at the upper abdominal position of the output wheel teeth, so that when the force wheel teeth approach the output wheel teeth, the first force wheel magnetic units and the first output wheel magnetic units have the maximum area opposite to each other to generate the maximum thrust.

4. The magneto-motive power transmission apparatus according to claim 2, characterized by The second force wheel magnetic units are arranged at the upper abdominal position of the force wheel teeth, and the second output wheel magnetic units are arranged at the lower abdominal position of the output wheel teeth, so that when the force wheel teeth move away from the output wheel teeth, the second force wheel magnetic units and the second output wheel magnetic units have the maximum area opposite to each other to avoid friction and collision.

5. The magneto-motive power transmission apparatus according to claim 1, wherein The surfaces of the force wheel teeth and the output wheel teeth are provided with grooves to respectively embed the force wheel magnetic units and the output wheel magnetic units, and screws are used for locking.

6. The magneto-motive power transmission apparatus according to claim 1, wherein The two sides of the force wheel teeth and the output wheel teeth are respectively provided with L-shaped pressing plates to strengthen the fixation of the force wheel magnetic units on the force wheel teeth and the fixation of the output wheel magnetic units on the output wheel teeth, and screws are used for locking.

7. The magneto-motive power transmission apparatus according to claim 1, wherein The power generator is an electric motor or an engine, which drives multiple force wheels to rotate separately or simultaneously.

8. The magneto-motive power transmission apparatus according to claim 1, wherein The load is a generator, and a brake portion and an energy storage unit are arranged on the transmission shaft in cooperation with the generator.

9. The magneto-motive power transmission apparatus according to claim 1, wherein The gear set is arranged on the same transmission shaft simultaneously in more than one group, and the gear sets are separated by an anti-interference distance, so that multiple gear sets concentrate power output to the transmission shaft.