CN213693431U

CN213693431U - Magnetic gear convenient to change permanent magnet

Info

Publication number: CN213693431U
Application number: CN202022776125.7U
Authority: CN
Inventors: 张凯
Original assignee: Jiangsu Bohai Technology Co ltd
Current assignee: Jiangsu Bohai Technology Co ltd
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-07-13
Anticipated expiration: 2030-11-26

Abstract

The utility model discloses a magnetic gear convenient to change permanent magnet, including transferring the magnetic ring, the outside coaxial rotation of transferring the magnetic ring has the external rotor, it is provided with outer air gap to transfer between magnetic ring and the external rotor, the inside coaxial rotation of transferring the magnetic ring has the inner rotor, transfer and be provided with inner air gap between magnetic ring and the inner rotor, the inner wall of external rotor and the outer wall of inner rotor all are the circular mounting groove of having seted up, the inside grafting of mounting groove is fixed with fan-shaped permanent magnet, flexible groove has been seted up to inner wall one side of mounting groove, the inside in flexible groove slides there is trapezoidal kicking block, the top of trapezoidal kicking block is fixed with the locating lever, the vertical square spout of having seted up in one side in. The utility model discloses novel structure thinks about ingeniously, has not only guaranteed the fixed stability of fan-shaped permanent magnet, and the installation is dismantled conveniently moreover, is convenient for realize the quick replacement of fan-shaped permanent magnet, the effectual convenience that promotes the use.

Description

Magnetic gear convenient to change permanent magnet

Technical Field

The utility model relates to a magnetic gear technical field specifically is a magnetic gear convenient to change permanent magnet.

Background

The magnetic gear is driven by magnetic force and is meshed with the gear without mechanical contact. Just because the gears are meshed without contact, friction energy consumption is avoided, and transmission is stable, the advantages of high efficiency, high reliability and long service life of the magnetic gear are embodied. Secondly, it does not need lubrication, cleaning, no oil stain, dust prevention and water prevention, etc. The motor speed reducer has the overload protection function, the speed reducer cannot be damaged in overload, the transmission relation is cut off at any time in overload, the speed reducer cannot be damaged, and a prime motor can be protected.

At present, the permanent magnets of the existing magnetic gear are generally fixed on the outer rotor and the inner rotor, so that the magnetic gear is difficult to disassemble, and when the magnetism of the permanent magnets is weakened under the influence of the outside, the normal use of the magnetic gear is influenced, and the permanent magnets are difficult to replace. Therefore, it is necessary to design a magnetic gear that facilitates replacement of the permanent magnet.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model provides a magnetic gear convenient to change permanent magnet, this magnetic gear, novel structure thinks about ingeniously, has not only guaranteed the fixed stability of fan-shaped permanent magnet, and the installation is dismantled conveniently moreover, is convenient for realize the quick replacement of fan-shaped permanent magnet, the effectual convenience that has promoted the use.

In order to achieve the above object, the utility model provides a following technical scheme: a magnetic gear convenient for replacing a permanent magnet comprises a magnetic adjusting ring, wherein an outer rotor is coaxially rotated outside the magnetic adjusting ring, an outer air gap is arranged between the magnetic adjusting ring and the outer rotor, an inner rotor is coaxially rotated inside the magnetic adjusting ring, an inner air gap is arranged between the magnetic adjusting ring and the inner rotor, mounting grooves are circularly formed in the inner wall of the outer rotor and the outer wall of the inner rotor, and fan-shaped permanent magnets are fixedly inserted inside the mounting grooves;

the utility model discloses a fan-shaped permanent magnet, including the mounting groove, the inner wall of mounting groove has been seted up flexible groove on one side, the inside in flexible groove slides and has trapezoidal kicking block, the top of trapezoidal kicking block is fixed with the locating lever, the vertical square spout of having seted up in one side in flexible groove, the top swivelling joint of square spout has interior screw thread seat, the inside of interior screw thread seat connects soon and is fixed with the external screw thread pole, the bottom mounting of external screw thread pole has the square ejector pin of slip inside square spout, set up the constant head tank that uses with the locating lever cooperation on the fan.

Preferably, the fan-shaped permanent magnet is a member made of neodymium iron boron material.

Preferably, the air gap interval of the outer air gap and the inner air gap is 0.25 mm.

Preferably, a return spring is fixedly sleeved on the positioning rod.

Preferably, the top end of the positioning rod is spherical.

The utility model has the advantages that:

1. the fan-shaped permanent magnets are circularly distributed on the inner wall of the outer rotor and the outer wall of the inner rotor, so that the using amount of the permanent magnets can be reduced, and the production cost of the magnetic gear is reduced;

2. fix fan-shaped permanent magnet grafting in the inside of mounting groove, adopt the instrument to rotate the internal thread seat after that, the inside downstream of screw thread seat including the drive external screw thread pole, thereby treat to drive the inside downstream of square ejector pin toward square spout, the top moves trapezoidal kicking block motion, drive the inside motion of locating lever in flexible groove, make it push up inside the constant head tank of fan-shaped permanent magnet one side, the fixed stability of fan-shaped permanent magnet has not only been guaranteed, and the installation is dismantled conveniently, be convenient for realize fan-shaped permanent magnet's quick replacement, the effectual convenience that promotes the use.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of the overall plane structure of the present invention;

FIG. 2 is a schematic view of a sectional plane structure of the mounting groove of the present invention;

FIG. 3 is a schematic cross-sectional plan view of the sector permanent magnet of the present invention;

reference numbers in the figures: 1. adjusting a magnetic ring; 2. an outer rotor; 3. mounting grooves; 4. a fan-shaped permanent magnet; 5. an outer air gap; 6. an inner air gap; 7. an inner rotor; 8. an internal thread seat; 9. an externally threaded rod; 10. a square ejector rod; 11. a telescopic groove; 12. a trapezoidal top block; 13. positioning a rod; 14. a return spring; 15. positioning a groove; 16. a square chute 16.

Detailed Description

The following describes the present invention in further detail with reference to the accompanying fig. 1-3.

Given by figures 1-3, the utility model provides the following technical scheme: a magnetic gear convenient for replacing a permanent magnet comprises a magnetic adjusting ring 1, an outer rotor 2 is coaxially rotated outside the magnetic adjusting ring 1, an outer air gap 5 is arranged between the magnetic adjusting ring 1 and the outer rotor 2, an inner rotor 7 is coaxially rotated inside the magnetic adjusting ring 1, an inner air gap 6 is arranged between the magnetic adjusting ring 1 and the inner rotor 7, mounting grooves 3 are circularly formed in the inner wall of the outer rotor 2 and the outer wall of the inner rotor 7, fan-shaped permanent magnets 4 are fixedly inserted inside the mounting grooves 3, and the fan-shaped permanent magnets 4 are circularly distributed on the inner wall of the outer rotor 2 and the outer wall of the inner rotor, so that the using amount of the permanent magnets can be reduced, and the production cost of the;

one side of the inner wall of the mounting groove 3 is provided with a telescopic groove 11, a trapezoidal top block 12 slides in the telescopic groove 11, a positioning rod 13 is fixed at the top of the trapezoidal top block 12, one side of the telescopic groove 11 is vertically provided with a square sliding groove 16, the top of the square sliding groove 16 is rotatably connected with an internal thread seat 8, an external thread rod 9 is screwed and fixed in the internal thread seat 8, a square ejector rod 10 sliding in the square sliding groove 16 is fixed at the bottom end of the external thread rod 9, a positioning groove 15 matched with the positioning rod 13 is arranged on the fan-shaped permanent magnet 4, the fan-shaped permanent magnet 4 is inserted and fixed in the mounting groove 3, then the internal thread seat 8 is rotated by adopting a tool to drive the external thread rod 9 to move downwards in the internal thread seat 8, so that the square ejector rod 10 is driven to move downwards in the square sliding groove 16, the trapezoidal top block 12 is pushed to move, and, make inside its top constant head tank 15 on one side of fan-shaped permanent magnet 4, not only guaranteed the fixed stability of fan-shaped permanent magnet 4, the installation is dismantled conveniently moreover, is convenient for realize fan-shaped permanent magnet 4's quick replacement, the effectual convenience that promotes the use.

The fan-shaped permanent magnet 4 is a component made of neodymium iron boron material and has strong magnetism.

The gap interval of the outer air gap 5 and the inner air gap 6 is 0.25 mm.

A return spring 14 is sleeved and fixed on the positioning rod 13, so that the positioning rod 13 is convenient to return.

The top end of the positioning rod 13 is spherical.

When the utility model is used, the sector permanent magnets 4 are circularly distributed on the inner wall of the outer rotor 2 and the outer wall of the inner rotor, so that the use amount of the permanent magnets can be reduced, and the production cost of the magnetic gear is reduced;

fix fan-shaped permanent magnet 4 in the inside of mounting groove 3 by grafting, adopt the instrument to rotate internal thread seat 8 after that, the inside downstream of internal thread seat 8 including driving external screw rod 9, thereby treat to drive square ejector pin 10 toward the inside downstream of square spout 16, trapezoidal kicking block 12 motion is moved in the top, drive locating lever 13 at the inside motion of expansion tank 11, make it push up inside constant head tank 15 of 4 one sides of fan-shaped permanent magnet, the stability that fan-shaped permanent magnet 4 is fixed has not only been guaranteed, and the installation is dismantled conveniently, be convenient for realize fan-shaped permanent magnet 4's quick replacement, the effectual convenience of using that has promoted.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a magnetic gear convenient to change permanent magnet, is including transferring magnetic ring (1), its characterized in that: an outer rotor (2) coaxially rotates outside the magnetic adjusting ring (1), an outer air gap (5) is arranged between the magnetic adjusting ring (1) and the outer rotor (2), an inner rotor (7) coaxially rotates inside the magnetic adjusting ring (1), an inner air gap (6) is arranged between the magnetic adjusting ring (1) and the inner rotor (7), the inner wall of the outer rotor (2) and the outer wall of the inner rotor (7) are both circular and provided with a mounting groove (3), and a fan-shaped permanent magnet (4) is fixedly inserted into the mounting groove (3);

flexible groove (11) have been seted up to inner wall one side of mounting groove (3), the inside slip of flexible groove (11) has trapezoidal kicking block (12), the top of trapezoidal kicking block (12) is fixed with locating lever (13), square spout (16) have vertically been seted up to one side of flexible groove (11), the top swivelling joint of square spout (16) has interior screw thread seat (8), the inside of interior screw thread seat (8) connects soon and is fixed with external screw thread pole (9), the bottom mounting of external screw thread pole (9) has the square ejector pin (10) of slip in square spout (16) inside, set up constant head tank (15) with locating lever (13) cooperation use on fan-shaped permanent magnet (4).

2. A magnetic gear for facilitating replacement of a permanent magnet according to claim 1, wherein: the fan-shaped permanent magnet (4) is a component made of neodymium iron boron materials.

3. A magnetic gear for facilitating replacement of a permanent magnet according to claim 1, wherein: the air gap interval of the outer air gap (5) and the inner air gap (6) is 0.25 mm.

4. A magnetic gear for facilitating replacement of a permanent magnet according to claim 1, wherein: and a return spring (14) is fixedly sleeved on the positioning rod (13).

5. A magnetic gear for facilitating replacement of a permanent magnet according to claim 1, wherein: the top end of the positioning rod (13) is spherical.