CN114825708A - Magnetic gear rotor and structure forming tool system thereof - Google Patents

Abstract

The invention discloses a magnetic gear rotor and a structure forming tool system thereof. The rotor permanent magnets are arranged in a special structure, namely, the rotor permanent magnets are formed by alternately arranging radial and tangential polarized permanent magnets, grooves are designed on the rotor disc, the radial polarized permanent magnets are arranged in the grooves, and magnetic conduction blocks are designed on the outer sides of the permanent magnets. In order to facilitate the installation of the rotor permanent magnet, a positioning disc and a mounting plate are designed, a central hole of the rotor disc is used as a positioning reference, the positioning disc, the mounting plate and the rotor disc are ensured to be concentric, and meanwhile, the installation accuracy of the permanent magnet is ensured. The invention has good effects on improving the torque density of the magnetic gear, ensuring the installation precision of the permanent magnet and improving the utilization rate of the permanent magnet, and plays a role in promoting the development and application of the magnetic gear.

Description

A magnetic gear rotor and its structural forming tooling system

technical field

The present invention relates to magnetic gears.

Background technique

The structure of the magnetic gear is similar to that of the mechanical gear. It uses the interaction between the magnetic fields to transmit torque. The magnetic gear is a non-contact torque transmission, which can reduce mechanical noise and vibration, reduce mechanical loss, improve operating efficiency, and have precise peak torque. , with automatic protection function when overloaded.

At present, the existing magnetic gears have problems such as small transmission torque and low torque density. Therefore, how to optimize the structural form of the magnetic gear to improve the torque density of the magnetic gear and make it have higher use value is a problem that needs to be solved at present.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a magnetic gear rotor, which is characterized by comprising a rotor disk (1), a plurality of radial permanent magnets (2), a plurality of tangential permanent magnets (3), and a plurality of magnetic conductive blocks (4);

The center of the rotor disk (1) is a central hole (101), and a plurality of grooves (103) for installing radial permanent magnets (2) are evenly distributed around the rotor disk (1); Between the grooves (103) is a flange (102);

In each radial permanent magnet (2), a part including one magnetic pole is fixed in the groove (103), and the other part including the other magnetic pole is located around the rotor disk (1) outside the groove (103); The magnetic pole of the permanent magnet (2) points to the radial direction when the rotor disk (1) rotates; the magnetic poles of any two adjacent radial permanent magnets (2) located inside the groove (103) are opposite;

A gap I (201) is formed between the parts of any two adjacent radial permanent magnets (2) located outside the groove (103), and the gap I (201) accommodates the tangential permanent magnet (3) inside; A part of the permanent magnet (3) is fixed in the gap I (201), and the other part is located around the rotor disk (1) outside the gap I (201); the direction of the magnetic pole of each tangential permanent magnet (3) is the rotor disk (1) Tangential direction during rotation;

A gap II (301) is formed between the parts of any two adjacent tangential permanent magnets (3) located outside the gap I (201), and the gap I (301) is filled with a magnetic conductive block (4).

Further, it also includes a left rotor end plate (5) and a right rotor end plate (6); the left rotor end plate (5) and the right rotor end plate (6) are respectively mounted on the rotor disc (1) On both sides, fix the rotor disk (1), radial permanent magnets (2), tangential permanent magnets (3) and magnetic conductive blocks (4) on the left rotor end plate (5) and the right rotor end plate (6) )middle.

Further, the central hole (101) is provided with a stepped hole for installing the bearing.

Further, the rotor disc (1) is provided with a fan-shaped hole (105) for connecting the front and rear casings and limiting connection, and a circular hole (106) for installing the bearing and supporting the rotor

Further, the rotor disk (1) is provided with a plurality of through holes (104), and the left rotor end plate (5) and the right rotor end plate (6) are provided with corresponding through holes (104). Counterbores, usually through the through holes (104) and counterbored socket head cap bolts (7), fix the rotor disc (1), the left rotor end plate (5) and the right rotor end plate (6) together .

The system tooling disclosed by the present invention includes a positioning plate (8) and a mounting plate (9); the positioning plate (8) is disc-shaped, and the center of the upper surface thereof has a center corresponding to the center hole (101). steps(801);

The mounting plate (9) is fixed on the upper surface of the positioning plate (8) and is coaxial with the mounting plate (9) of the positioning plate (8); the mounting plate (9) is annular and faces the mounting plate (9) The surface of the center has a plurality of positioning flanges (901) corresponding to the grooves (103) one-to-one, and between any two adjacent positioning flanges (901) is a positioning groove corresponding to the flanges (102) one-to-one (902);

Between the positioning flange (901) and the groove (103) is the assembly position of the radial permanent magnet (2);

Between the positioning groove (902) and the flange (102) is the assembly position of the tangential permanent magnet (3);

Include the following steps:

1) Fasten the positioning plate (8) and the mounting plate (9) with bolts.

2) Install the rotor disk (1) on the positioning disk (8), and use the center hole of the rotor disk as the positioning reference to ensure that the positioning disk (8), the mounting plate (9) and the rotor disk (8) are concentric.

3) According to the arrangement rules of the two types of permanent magnets, a plurality of radial permanent magnets (2) and a plurality of tangential permanent magnets (3) are respectively bonded on the rotor disk.

4) After curing, remove the positioning plate and the mounting plate, and install a number of magnetic conductive blocks (4) at the gaps.

5) Install the left rotor end plate (5) and the right rotor end plate (6) on both sides of the rotor disc (8) and fix them to complete the assembly of the product.

Further, the central step (801) is surrounded by annular steps (802) for supporting the rotor disk (1); the outermost ring of the positioning disk (8) is an outer peripheral convex for limiting the positioning disk (8) edge (804); before the annular step (802) and the outer peripheral flange (804) are an annular positioning groove (803), the mounting plate (9), and a radial permanent The magnet (2) and the tangential permanent magnet (3) are located in the positioning slot (803).

The technical effect of the present invention is beyond doubt:

(1) In the present invention, by rationally designing and arranging the permanent magnet structure and the magnetic conductive block, the air gap magnetic field tends to be sinusoidal, and the working torque of the magnetic gear is improved.

(2) In the present invention, the design of the rotor disk and its end plate makes the connection between the permanent magnet and the rotor disk more tightly, and avoids the phenomenon of the permanent magnet falling off and loosening during the operation of the magnetic gear.

(3) In the present invention, by reasonably designing the tooling system and the installation method, the installation of the rotor permanent magnet is facilitated, and the installation accuracy of the product is ensured at the same time.

In summary, the present invention plays a role in promoting the development and application of magnetic gears.

Description of drawings

1 is a radial cross-sectional view of the structure of the present invention;

2 is an axial cross-sectional view of the structure of the present invention;

Fig. 3 is the axial schematic diagram of the installation method of the present invention;

FIG. 4 is a schematic diagram of the radial direction of the installation method of the present invention.

In the figure: rotor disc (1), central hole (101), flange (102), groove (103), through hole (104), sector hole (105), circular hole (106), radial permanent magnet ( 2), gap I (201), tangential permanent magnet (3), gap II (301), magnetic conductive block (4), left rotor end plate (5), right rotor end plate (6), inner hexagon Cylinder head bolt (7), positioning plate (8), central step (801), annular flange (802), positioning groove (803), peripheral flange (804), positioning hole (805), mounting plate (9) , a positioning flange (901), and a positioning groove (902).

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but it should not be understood that the scope of the above-mentioned subject matter of the present invention is limited to the following embodiments. Without departing from the above-mentioned technical idea of the present invention, various substitutions and changes can be made according to common technical knowledge and conventional means in the field, which shall be included in the protection scope of the present invention.

Example 1:

A magnetic gear rotor is characterized by comprising a rotor disk 1, a plurality of radial permanent magnets 2, a plurality of tangential permanent magnets 3, and a plurality of magnetic conductive blocks 4;

Referring to FIG. 1 , in the figure, the partial enlarged views a1, a2 to a3 corresponding to the schematic diagram of the S part of the rotor disk 1 reflect in turn the tangential permanent magnets 3, a number of magnetic conductive blocks 4 and the magnetic conductive blocks 4 are assembled to the rotor in turn Disc 1 process.

The center of the rotor disk 1 is a central hole 101, and the central hole 101 can be provided with a stepped hole for installing a bearing. A plurality of grooves 103 for installing radial permanent magnets 2 are evenly distributed around the rotor disk 1; between two adjacent grooves 103 is a flange 102;

In each radial permanent magnet 2, a part including one magnetic pole is fixed in the groove 103, and the other part including the other magnetic pole is located around the rotor disk 1 outside the groove 103; The radial direction when the rotor disk 1 rotates; the magnetic poles of any two adjacent radial permanent magnets 2 located inside the groove 103 are opposite;

A gap I201 is formed between the parts of any two adjacent radial permanent magnets 2 located outside the groove 103, and the interior of the gap I201 accommodates the tangential permanent magnet 3; a part of each tangential permanent magnet 3 is fixed in the gap I201, The other part is located around the rotor disk 1 outside the gap I201; the direction of the magnetic pole of each tangential permanent magnet 3 is the tangential direction when the rotor disk 1 rotates;

A gap II301 is formed between the parts of any two adjacent tangential permanent magnets 3 located outside the gap I201 , and the magnetic conductive block 4 is filled in the gap I301 .

Example 2:

The main structure of this embodiment is the same as that of Embodiment 1, and further includes a left rotor end plate 5 and a right rotor end plate 6 ; the left rotor end plate 5 and the right rotor end plate 6 are respectively installed on the rotor disk 1 On both sides, the rotor disk 1 , the radial permanent magnets 2 , the tangential permanent magnets 3 and the magnetic conductive blocks 4 are fixed between the left rotor end plate 5 and the right rotor end plate 6 .

In order to fix the product more tightly, the rotor disk 1 is provided with a plurality of through holes 104 , and the left rotor end plate 5 and the right rotor end plate 6 are provided with countersunk holes corresponding to the through holes 104 , the hexagonal socket head bolts 7 through the through holes 104 and the countersunk holes are commonly used to fix the rotor disk 1 , the left rotor end plate 5 and the right rotor end plate 6 together.

Example 3:

This embodiment discloses a tooling system for forming a magnetic gear rotor structure described in Embodiment 1 or 2, which is characterized in that it includes a positioning plate 8 and a mounting plate 9;

The positioning plate 8 is in the shape of a disk, and the center of its upper surface has a central step 801 corresponding to the central hole 101; the center step 801 is surrounded by annular steps 802 for supporting the rotor disk 1; 8. The outermost ring is an outer peripheral flange 804 for limiting the position of the positioning disc 8; the annular step 802 and the outer peripheral flange 804 are preceded by an annular positioning groove 803, and the mounting plate 9 is assembled around the rotor disc 1. The radial permanent magnet 2 and the tangential permanent magnet 3 are located in the positioning slot 803 .

The mounting plate 9 is fixed on the upper surface of the positioning plate 8 and is coaxial with the mounting plate 9 of the positioning plate 8; the mounting plate 9 is annular, and the surface facing the center of the mounting plate 9 has a number of grooves 103 corresponding to each other. The positioning flanges 901 are located between any two adjacent positioning flanges 901 are positioning grooves 902 corresponding to the flanges 102 one-to-one;

Between the positioning flange 901 and the groove 103 is the assembly position of the radial permanent magnet 2;

Between the positioning groove 902 and the flange 102 is an assembly position of the tangential permanent magnet 3 .

When assembling, include the following steps:

1) Fix the positioning plate 8 and the mounting plate 9 together with bolts. As shown, the design of the stop formed by each groove and flange ensures that the positioning plate and the mounting plate are concentric.

2) Install the rotor disk 1 on the positioning disk 8, and use the center hole of the rotor disk as the positioning reference to ensure that the positioning disk 8, the mounting plate 9 and the rotor disk 8 are concentric.

3) According to the arrangement rules of the two types of permanent magnets, several radial permanent magnets 2 and several tangential permanent magnets 3 are respectively bonded on the rotor disk.

4) After curing, remove the positioning plate and the mounting plate, and install several magnetic conductive blocks 4 in the gap.

5) Install the left rotor end plate 5 and the right rotor end plate 6 on both sides of the rotor disk 8 and fix them with [hexagonal cylinder head bolts] to complete the assembly of the product.

Claims (7)

1. A magnetic gear rotor, characterized in that it comprises a rotor disk (1), several radial permanent magnets (2), several tangential permanent magnets (3), and several magnetic conductive blocks (4); The center of the rotor disk (1) is a central hole (101), and a plurality of grooves (103) for installing radial permanent magnets (2) are evenly distributed around the rotor disk (1); Between the grooves (103) is a flange (102); In each radial permanent magnet (2), a part including one magnetic pole is fixed in the groove (103), and the other part including the other magnetic pole is located around the rotor disk (1) outside the groove (103); The magnetic pole of the permanent magnet (2) points to the radial direction when the rotor disk (1) rotates; the magnetic poles of any two adjacent radial permanent magnets (2) located inside the groove (103) are opposite; A gap I (201) is formed between the parts of any two adjacent radial permanent magnets (2) located outside the groove (103), and the gap I (201) accommodates the tangential permanent magnet (3) inside; A part of the permanent magnet (3) is fixed in the gap I (201), and the other part is located around the rotor disk (1) outside the gap I (201); the direction of the magnetic pole of each tangential permanent magnet (3) is the rotor disk (1) Tangential direction during rotation; A gap II (301) is formed between the parts of any two adjacent tangential permanent magnets (3) located outside the gap I (201), and the gap I (301) is filled with a magnetic conductive block (4). 2. A magnetic gear rotor according to claim 1, characterized in that: further comprising a left rotor end plate (5) and a right rotor end plate (6); the left rotor end plate (5) and The right rotor end plates (6) are respectively installed on both sides of the rotor disk (1), and fix the rotor disk (1), radial permanent magnets (2), tangential permanent magnets (3) and magnetic conductive blocks (4) Between the left rotor end plate (5) and the right rotor end plate (6). 3. A magnetic gear rotor according to claim 1 or 2, wherein the central hole (101) is provided with a stepped hole for installing the bearing. 4 . The magnetic gear rotor according to claim 1 , wherein the rotor disk ( 1 ) is provided with a fan-shaped hole ( 105 ) and a circular hole ( 106 ). 5 . 5. A magnetic gear rotor according to claim 1 or 3, characterized in that: the rotor disk (1) is provided with a plurality of through holes (104), the left rotor end plate (5) and the right side are provided with a plurality of through holes (104). Counterbores corresponding to the through holes (104) are provided on the rotor end plate (6), and hexagonal socket head bolts (7) penetrating the through holes (104) and the counterbores are used to connect the rotor disc (1), the left The side rotor end plate (5) and the right rotor end plate (6) are fixed together. 6. A method for forming a magnetic gear rotor structure according to any one of claims 1 to 5, characterized in that: The adopted system tooling includes a positioning plate (8) and a mounting plate (9); the positioning plate (8) is in the shape of a disc, and the center of its upper surface has a central step (801) corresponding to the central hole (101). ; The mounting plate (9) is fixed on the upper surface of the positioning plate (8) and is coaxial with the mounting plate (9) of the positioning plate (8); the mounting plate (9) is annular and faces the mounting plate (9) The surface of the center has a plurality of positioning flanges (901) corresponding to the grooves (103) one-to-one, and between any two adjacent positioning flanges (901) is a positioning groove corresponding to the flanges (102) one-to-one (902); Between the positioning flange (901) and the groove (103) is the assembly position of the radial permanent magnet (2); Between the positioning groove (902) and the flange (102) is the assembly position of the tangential permanent magnet (3); Include the following steps: 1) Fasten the positioning plate (8) and the mounting plate (9) with bolts. 2) Install the rotor disk (1) on the positioning disk (8), and use the center hole of the rotor disk as the positioning reference to ensure that the positioning disk (8), the mounting plate (9) and the rotor disk (8) are concentric. 3) According to the arrangement rules of the two types of permanent magnets, a plurality of radial permanent magnets (2) and a plurality of tangential permanent magnets (3) are respectively bonded on the rotor disk. 4) After curing, remove the positioning plate and the mounting plate, and install a number of magnetic conductive blocks (4) at the gaps. 5) Install the left rotor end plate (5) and the right rotor end plate (6) on both sides of the rotor disc (8) and fix them to complete the assembly of the product. 7. The method according to claim 6, characterized in that: the central step (801) is surrounded by an annular step (802) for supporting the rotor disk (1); the outermost ring of the positioning disk (8) is An outer peripheral flange (804) for limiting the position of the positioning plate (8); an annular positioning groove (803) is formed before the annular step (802) and the outer peripheral flange (804), and the mounting plate (9), And the radial permanent magnets (2) and the tangential permanent magnets (3) assembled around the rotor disk (1) are located in the positioning grooves (803).

Images