A magnetic speed change device

Abstract

This utility model provides a magnetic speed-changing device, comprising a magnetic adjusting stator, a first annular end cap, a second annular end cap, an input end, and an output end. The magnetic adjusting stator includes a sleeve portion, an iron core portion, and a magnetic adjusting ring. The magnetic adjusting ring includes a uniformly distributed magnetic conductive sheets. The iron core portion has hollowed-out positions, and the magnetic conductive sheets are disposed in the hollowed-out positions. The input end includes an input spindle and a first annular magnet group. The input spindle includes a first disk and a first rotating shaft. The first annular magnet group includes b pairs of first sector magnets uniformly distributed on the first disk, with adjacent first sector magnets arranged in opposite polarities. The output end includes an output spindle and a second annular magnet group. The output spindle includes a second disk and a second rotating shaft. The second annular magnet group includes c pairs of second sector magnets uniformly distributed on the second disk, with adjacent second sector magnets arranged in opposite polarities, where a = b + c. This reduces the diameter of the speed-changing device and has the advantages of simple structure and easy assembly.

Description

Technical Field

[0001] This utility model relates to the field of transmission technology, and more particularly to a magnetic transmission device. Background Technology

[0002] Magnetic speed changers are widely used in the transmission field. Since there is no physical contact between the driving wheel and the driven wheel, but the transmission is carried out by the force of the magnetic field of permanent magnets, magnetic speed changers are an ideal choice for the transmission field, with the advantages of good performance and high reliability.

[0003] Existing magnetic speed changers mainly consist of an inner magnetic ring, an outer magnetic ring, and an adjusting magnetic ring. Because the inner magnetic ring, adjusting magnetic ring, and outer magnetic ring are arranged radially from the inside to the outside, this type of speed changer has a complex structure and is difficult to assemble, resulting in a large diameter of the speed changer, making it difficult to use in some narrow installation spaces. Summary of the Invention

[0004] The problem to be solved by this utility model is to provide a magnetic speed change device that simplifies the structure, reduces assembly difficulty, and reduces the diameter.

[0005] To solve the above-mentioned technical problems, a magnetic speed-changing device provided by this utility model is proposed, comprising a magnetic adjusting stator, a first annular end cap, a second annular end cap, an input end, and an output end. The magnetic adjusting stator includes a sleeve portion, an iron core portion connected to the inner edge of the sleeve portion, and a magnetic adjusting ring. The first annular end cap and the second annular end cap are respectively fixedly connected to both ends of the sleeve portion. The iron core portion divides the interior of the sleeve portion into a first cavity and a second cavity. The magnetic adjusting ring includes a uniformly distributed magnetic conductive sheets. The iron core portion has through-holes corresponding to the magnetic conductive sheets, and the magnetic conductive sheets are disposed in the through-holes. The input end includes an input spindle and a first annular magnet assembly. The input spindle includes a first disk and a first rotating shaft connected to the top center of the first disk and movably disposed in the inner ring of the first annular end cap. The first annular magnet group is movably disposed in the first cavity. The first annular magnet group includes b pairs of first sector magnets evenly distributed on one end face of the first disk, with adjacent first sector magnets arranged in opposite polarities. The output end includes an output spindle and a second annular magnet group. The output spindle includes a second disk and a second rotating shaft connected to the bottom center of the second disk and movably disposed in the inner ring of the second annular end cover. The second disk and the second annular magnet group are movably disposed in the second cavity. The second annular magnet group includes c pairs of second sector magnets evenly distributed on one end face of the second disk, with adjacent second sector magnets arranged in opposite polarities, a = b + c. The first annular end cover, the second annular end cover, the sleeve part, the iron core part, the input spindle, and the output spindle are all made of magnetic shielding material.

[0006] Preferably, the first rotating shaft has a first annular step at one end connected to the first disk, and a first bearing hole communicating with the inner ring of the first annular end cover is provided at one outer end of the first annular end cover. The first bearing hole and the first rotating shaft are connected by a first bearing. The second rotating shaft has a second annular step at one end connected to the second disk, and a second bearing hole communicating with the inner ring of the second annular end cover is provided at one outer end of the second annular end cover. The second bearing hole and the second rotating shaft are connected by a second bearing.

[0007] Preferably, the sleeve part and the iron core part are an integral structure.

[0008] Preferably, the magnetic conductive sheet is made of several silicon steel sheets stacked together.

[0009] Preferably, the first annular end cap, the sleeve portion, and the second annular end cap are respectively provided with corresponding first through holes, second through holes, and third through holes, which are connected by bolts made of magnetic shielding material.

[0010] Preferably, both the first annular end cap and the second annular end cap have a plurality of heat dissipation holes.

[0011] The beneficial effects of this utility model are as follows: This utility model provides a magnetic speed-changing device with b magnetic pole pairs on the input side and c magnetic pole pairs on the output side. The magnetic fields of the first and second sector magnets can pass through the magnetic conductive sheets. In use, the drive end is connected to the first rotating shaft, and the load end is connected to the second rotating shaft. When the input end is rotated by the drive end, the magnetic fields of the first and second sector magnets couple, realizing a speed change of b / c ratio from the input end to the output end. By distributing magnetic conductive sheets in the hollowed-out positions of the iron core and setting the first and second annular magnet groups on the first and second discs respectively, the axial arrangement of the input end, adjusting ring, and output end is achieved, which can reduce the diameter of the speed-changing device. It has the advantages of simple structure, easy assembly, and reduced production costs. Attached Figure Description

[0012] Figure 1 A schematic diagram illustrating the external structure of this utility model is provided.

[0013] Figure 2 A cross-sectional view of the present invention is shown.

[0014] Figure 3 An exploded view of the present invention is shown.

[0015] Reference numerals in the attached diagram: Magnetic Stator 1, Sleeve 10, First Cavity 100, Second Cavity 101, Second Through Hole 102, Iron Core 11, Hollowed-out Position 110, Magnetic Ring 12, Magnetic Conductor 120, First Annular End Cap 2, First Bearing Hole 20, First Bearing 21, First Through Hole 22, Heat Dissipation Hole 23, Second Annular End Cap 3, Second Bearing Hole 30, Second Bearing 31, Third Through Hole 32, Input End 4, Input Spindle 40, First Disc 400, First Rotating Shaft 401, First Annular Step 402, First Annular Magnet Group 41, First Sector Magnet 410, Output End 5, Output Spindle 50, Second Disc 500, Second Rotating Shaft 501, Second Annular Step 502, Second Annular Magnet Group 51, Second Sector Magnet 510. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure.

[0017] Based on the embodiments described in this disclosure, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this disclosure.

[0018] refer to Figure 1-3 .

[0019] This utility model provides a magnetic speed-changing device, comprising a magnetic adjusting stator 1, a first annular end cap 2, a second annular end cap 3, an input end 4, and an output end 5. The magnetic adjusting stator 1 includes a sleeve portion 10, an iron core portion 11 connected to the inner edge of the sleeve portion 10, and a magnetic adjusting ring 12. The first annular end cap 2 and the second annular end cap 3 are respectively fixedly connected to the two ends of the sleeve portion 10. The iron core portion 11 divides the interior of the sleeve portion 10 into a first cavity 100 and a second cavity 101. The magnetic adjusting ring... The 12 includes a uniformly distributed magnetic conductive sheets 120. A hollowed-out position 110 corresponding to the magnetic conductive sheets 120 is provided through the iron core 11, with the magnetic conductive sheets 120 disposed in the hollowed-out position 110. The input end 4 includes an input spindle 40 and a first annular magnet assembly 41. The input spindle 40 includes a first disk 400 and a first rotating shaft 401 connected to the top center of the first disk 400 and movably disposed within the inner ring of the first annular end cover 2. The first disk 400 and the first... The annular magnet assembly 41 is movably disposed in the first cavity 100. The first annular magnet assembly 41 includes b pairs of first sector magnets 410 evenly distributed on one end face of the first disk 400, with adjacent first sector magnets 410 arranged in opposite polarities. The output end 5 includes an output spindle 50 and a second annular magnet assembly 51. The output spindle 50 includes a second disk 500 and a second rotating shaft 501 connected to the bottom center of the second disk 500 and movably disposed in the inner ring of the second annular end cover 3. The second disk 500 and the second annular magnet assembly 51 are movably disposed in the second cavity 101. The second annular magnet assembly 51 includes c pairs of second sector magnets 510 evenly distributed on one end face of the second disk 500, with adjacent second sector magnets 510 arranged in opposite polarities, a = b + c. The first annular end cover 2, the second annular end cover 3, the sleeve part 10, the iron core part 11, the input spindle 40, and the output spindle 50 are all made of magnetic shielding material.

[0020] Its working principle is as follows: the number of magnetic pole pairs on the input terminal 4 side is b, and the number of magnetic pole pairs on the output terminal 5 side is c. The magnetic fields of the first sector magnet 410 and the second sector magnet 510 can pass through the magnetic conductive sheet 120. In use, the drive end is connected to the first rotating shaft 401, and the load end is connected to the second rotating shaft 501. When the input terminal 4 is rotated by the drive end, the magnetic field of the first sector magnet 410 and the magnetic field of the second sector magnet 510 are coupled, realizing the speed change of the input terminal 4 to the output terminal 5 by a ratio of b / c. If the first ring magnet group 41 has 2 pairs of first sector magnets 410 and the second ring magnet group 51 has 6 pairs of second sector magnets 510, then the adjusting ring 12 should have 8 magnetic conductive sheets 120, and the speed change of the input terminal 4 to the output terminal 5 will be 3 times. By distributing magnetic conductive sheets 120 on the hollowed-out position 110 of the iron core part 11, and setting the first annular magnet group 41 and the second annular magnet group 51 on the first disk 400 and the second disk 500 respectively, the axial arrangement of the input end 4, the adjusting magnetic ring 12 and the output end 5 is realized. This can reduce the diameter of the speed change device, and has the advantages of simple structure and easy assembly, thus reducing production costs.

[0021] Based on the above embodiments, a first annular step 402 is provided at one end of the first rotating shaft 401 connected to the first disk 400, and a first bearing hole 20 communicating with the inner ring of the first annular end cover 2 is provided at one end of the outer side of the first annular end cover 2. The first bearing hole 20 and the first rotating shaft 401 are connected by a first bearing 21. A second annular step 502 is provided at one end of the second rotating shaft 501 connected to the second disk 500, and a second bearing hole 30 communicating with the inner ring of the second annular end cover 3 is provided at one end of the outer side of the second annular end cover 3. The second bearing hole 30 and the second rotating shaft 501 are connected by a second bearing 31. This can limit the input spindle 40 and the output spindle 50, and improve the rotational stability of the input spindle 40 and the output spindle 50.

[0022] Based on the above embodiments, the sleeve part 10 and the iron core part 11 are an integral structure, which has better structural stability and longer service life.

[0023] Based on the above embodiments, the magnetic conductive sheet 120 is made of several silicon steel sheets stacked together, which avoids the magnetic conductive sheet 120 from generating eddy currents in the alternating magnetic field and reduces energy loss.

[0024] Based on the above embodiments, the first annular end cap 2, the sleeve portion 10, and the second annular end cap 3 are respectively provided with corresponding first through holes 22, second through holes 102, and third through holes 32. The first through holes 22, second through holes 102, and third through holes 32 are connected by bolts made of magnetic shielding material, so as to achieve a stable connection between the first annular end cap 2, the sleeve portion 10, and the second annular end cap 3, avoid magnetic leakage, and improve the utilization rate of magnetism.

[0025] Based on the above embodiments, a plurality of heat dissipation holes 23 are distributed on the first annular end cover 2 and the second annular end cover 3 to achieve effective heat dissipation inside the transmission device.

[0026] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A magnetic speed-changing device, characterized in that, The device includes a magnetically adjustable stator, a first annular end cap, a second annular end cap, an input end, and an output end. The magnetically adjustable stator comprises a sleeve portion, an iron core portion connected to the inner edge of the sleeve portion, and a magnetically adjustable ring. The first and second annular end caps are fixedly connected to both ends of the sleeve portion. The iron core portion divides the interior of the sleeve portion into a first cavity and a second cavity. The magnetically adjustable ring includes a uniformly distributed magnetic conductive plates. The iron core portion has through-holes corresponding to the magnetic conductive plates, and the magnetic conductive plates are disposed in the through-holes. The input end includes an input spindle and a first annular magnet assembly. The input spindle includes a first disk and a first rotating shaft connected to the top center of the first disk and movably disposed within the inner ring of the first annular end cap. The first disk and the first annular magnet assembly are movably disposed... In the first cavity, the first annular magnet group includes b pairs of first sector magnets evenly distributed on one end face of the first disk, with adjacent first sector magnets arranged in opposite polarities; the output end includes an output spindle and a second annular magnet group, the output spindle including a second disk and a second rotating shaft connected to the bottom center of the second disk and movably disposed in the inner ring of the second annular end cover, the second disk and the second annular magnet group being movably disposed in the second cavity, the second annular magnet group including c pairs of second sector magnets evenly distributed on one end face of the second disk, with adjacent second sector magnets arranged in opposite polarities, a = b + c, the first annular end cover, the second annular end cover, the sleeve part, the iron core part, the input spindle, and the output spindle are all made of magnetic shielding material.

2. The magnetic speed-changing device according to claim 1, characterized in that, The first rotating shaft has a first annular step at one end connected to the first disk, and a first bearing hole communicating with the inner ring of the first annular end cover at one outer end. The first bearing hole and the first rotating shaft are connected by a first bearing. The second rotating shaft has a second annular step at one end connected to the second disk, and a second bearing hole communicating with the inner ring of the second annular end cover at one outer end. The second bearing hole and the second rotating shaft are connected by a second bearing.

3. A magnetic speed-changing device according to claim 2, characterized in that, The sleeve and the core are an integral structure.

4. A magnetic speed-changing device according to claim 3, characterized in that, The magnetic conductive sheet is composed of several silicon steel sheets stacked together.

5. A magnetic speed-changing device according to claim 4, characterized in that, The first annular end cap, the sleeve portion, and the second annular end cap are respectively provided with corresponding first through holes, second through holes, and third through holes, which are connected by bolts made of magnetic shielding material.

6. A magnetic speed-changing device according to claim 5, characterized in that, Both the first and second annular end caps have several heat dissipation holes.

Images