Pure permanent magnet torsion motor

Abstract

The invention discloses a pure permanent magnet torsion motor and belongs to the field of motor equipment. Comprising an end cover, a shell, a circular sliding rail, a sliding groove, a first sliding groove, a second sliding groove, a third sliding groove, a stator core, stator teeth, an enameled wire, a protruding shaft, a shaft sleeve, a clamping spring, a permanent magnet, a rotor shaft sleeve, a groove, a bearing, a rotor shaft and a protrusion. The permanent magnet and teeth of the stator core attract each other to generate torque output power, no power-consuming electromagnetic field exists in the output power, and the power output is constant power and constant torque; during rotation suffocation, no power is consumed, no heat is generated, no motor is burnt, and no current increase phenomenon exists; when the load is increased, the rotating speed is slow down, and the current of the motor does not rise and is the same as no-load current; after a controller change-over switch of the motor is switched, the motor can be changed into a common motor to rotate by utilizing torsion of an electromagnetic field and a permanent magnet magnetic field, and the motor can be switched between two modes during operation.

Description

Technical Field

[0001] The invention belongs to the field of motor equipment, and in particular relates to a pure permanent magnet torque motor. Background Art

[0002] An electric motor is an electromagnetic device that converts or transmits electric energy according to the law of electromagnetic induction. Since the invention of the electric motor, many types of electric motors have been subdivided. However, they all consist of a stator and a rotor. Moreover, the rotor or stator rotates due to the interaction of magnetic field forces to generate kinetic energy. The magnetic field is divided into permanent magnet magnetic field and electromagnetic magnetic field. Some motor rotors are composed of permanent magnets, and the stator is the electromagnetic magnetic field. Some stators and rotors are composed of electromagnetic magnetic fields. In short, the torque of the motor must be participated by the power-consuming electromagnetic field to form power output.

[0003] Therefore, there is an urgent need for a technology to solve the above problems in the prior art. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a device for solving the problems existing in the background technology.

[0005] A pure permanent magnet torque motor, characterized in that it includes an end cover, a housing, a circular slide rail, a stator core, an enameled wire, a raised shaft, a permanent magnet, a rotor sleeve, a bearing and a rotor shaft;

[0006] The shell is a cylindrical structure, and end covers are arranged at both ends of the shell, and a circular slide rail and a stator core are arranged on the inner wall of the shell;

[0007] The inner surface of the circular slide rail is provided with a slide groove;

[0008] The stator core is provided with enameled wire;

[0009] The rotor shaft is arranged in the rotor sleeve, and bearings are arranged at both ends of the rotor shaft, and the two bearings are respectively connected to the two end covers; a protrusion is arranged axially on the outer wall of the rotor shaft, and the cross section of the protrusion is semicircular;

[0010] A permanent magnet is arranged on the outer wall of the rotor sleeve, and a protruding shaft is arranged at one end of the rotor sleeve;

[0011] The inner wall of the rotor sleeve is provided with a groove which cooperates with the protrusion;

[0012] The protruding shaft is provided with a shaft sleeve, and the shaft sleeve cooperates with the slide groove, and the end of the protruding shaft is provided with a retaining spring to prevent the shaft sleeve from separating;

[0013] The rotor shaft sleeve is a hollow cylindrical structure with an open bottom, and a through hole is arranged at the center of the other bottom surface.

[0014] The circular slide rail is an annular structure, the slide groove is arranged on the inner wall of the circular slide rail, and the slide groove includes a first slide groove, a second slide groove and a third slide groove; the first slide groove and the second slide groove are parallel to each other, and the first slide groove and the second slide groove are connected through the third slide groove.

[0015] The raised shaft is connected to the rotor sleeve via screws.

[0016] The permanent magnet is a neodymium iron boron magnet, a ferrite permanent magnet or other permanent magnets.

[0017] The stator core comprises a plurality of stator silicon steel sheets, each of which is a hollow circular sheet structure, wherein the inner half is provided with teeth and the other half is not provided with teeth. A plurality of stator silicon steel sheets are stacked together, and the teeth on each stator silicon steel sheet are stacked and combined into stator teeth; the enameled wire is wound around the stator teeth; the material of the stator teeth is composed of magnetic conductive materials such as silicon steel sheets, soft magnetic ferrites, and amorphous steel sheets.

[0018] The number of the permanent magnets is one pair or more than two pairs, and the permanent magnets are evenly arranged on the outer wall of the rotor sleeve.

[0019] The permanent magnets are arranged around the outer wall of the rotor sleeve, and the shape of the permanent magnets is semi-annular, and each pair of two permanent magnets are arranged alternately.

[0020] The permanent magnet is in the shape of a ring or a spiral shape similar to the spring, and each pair of two permanent magnets are evenly arranged on the outer wall of the rotor sleeve.

[0021] The present application generates torque output power through the attraction between the teeth of the permanent magnet and the stator core. There is no electromagnetic field that consumes power in the output power, and the power output of the present application is constant power and constant torque; no power is consumed when the rotation is stopped, no heat is generated, the motor is not burned, and there is no current increase; when the load increases, the speed only slows down, and the current of the motor does not increase and is the same as the no-load current; when the controller conversion switch of the motor is switched, the motor can be transformed into an ordinary motor that uses the torque of the electromagnetic field and the permanent magnet magnetic field to rotate, and can switch between the two modes during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described below with reference to the accompanying drawings and specific embodiments:

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 for Figure 1 A partial enlarged view of the middle A area;

[0025] Figure 3 for Figure 1A partial enlarged view of the middle B area;

[0026] Figure 4 It is an exploded view of the assembly of the present invention;

[0027] Figure 5 for Figure 4 A partial enlarged view of the middle A area;

[0028] Figure 6 for Figure 4 A partial enlarged view of the middle B area;

[0029] Figure 7 for Figure 4 A partial enlarged view of the middle C area;

[0030] Figure 8 It is a structural schematic diagram of the circular slide rail of the present invention;

[0031] Fig. 9 is a perspective schematic diagram of a circular slide rail of the present invention;

[0032] Fig.10 It is a schematic diagram of the expansion of the circular slide rail of the present invention;

[0033] Fig.11 It is a schematic diagram of the assembly of the stator core and the enameled wire of the present invention;

[0034] Fig.12 It is a schematic diagram of the structure of the stator silicon steel sheet of the present invention;

[0035] Fig.13 It is a schematic diagram of the assembly of the stator core and the enameled wire of the present invention;

[0036] Fig.14 is a schematic diagram of the development of stator teeth of the stator core of the present invention;

[0037] Fig.15 It is a schematic diagram of the assembly of the permanent magnet and the rotor sleeve of the present invention;

[0038] Fig.16 It is an exploded schematic diagram of the permanent magnet, rotor sleeve and rotor shaft of the present invention;

[0039] Fig.17 It is a schematic diagram of the development of the permanent magnet of the present invention;

[0040] Fig.18 The motion state A of the permanent magnet and the stator teeth of the present invention;

[0041] Fig.19 The motion state B of the permanent magnet and the stator teeth of the present invention;

[0042] Fig. 20The motion state C of the permanent magnet and the stator teeth of the present invention;

[0043] Fig.21 The motion state D of the permanent magnet and the stator teeth of the present invention;

[0044] Fig. 22 It is a schematic diagram of the multi-turn permanent magnet and the rotor sleeve of the present invention;

[0045] Fig.23 It is a schematic diagram of a full circle of permanent magnets and a rotor sleeve of the present invention;

[0046] In the figure: 1-end cover, 2-housing, 3-circular slide rail, 301-slide groove, 3011-first slide groove, 3012-second slide groove, 3013-third slide groove, 4-stator core, 401-stator tooth, 5-enameled wire, 6-protruding shaft, 601-bushing, 602-circlip, 7-permanent magnet, 8-rotor bushing, 801-groove, 9-bearing, 10-rotor shaft, 101-protrusion. DETAILED DESCRIPTION

[0047] The present application is further described with reference to the accompanying drawings:

[0048] A pure permanent magnet torque motor, characterized in that it includes an end cover 1, a housing 2, a circular slide rail 3, a stator core 4, an enameled wire 5, a raised shaft 6, a permanent magnet 7, a rotor sleeve 8, a bearing 9 and a rotor shaft 10;

[0049] The shell 2 is a cylindrical structure, and end covers 1 are provided at both ends of the shell 2, and a circular slide rail 3 and a stator core 4 are provided on the inner wall of the shell 2;

[0050] The surface of the circular slide rail 3 is provided with a slide groove 301;

[0051] The stator core 4 is provided with an enameled wire 5;

[0052] The rotor shaft 10 is arranged in the rotor sleeve 8, and bearings 9 are arranged at both ends of the rotor shaft 10, and the two bearings 9 are respectively connected to the two end covers 1; a protrusion 101 is axially arranged on the outer wall of the rotor shaft 10, and the cross section of the protrusion 101 is semicircular;

[0053] A permanent magnet 7 is disposed on the outer wall of the rotor sleeve 8, and a protruding shaft 6 is disposed at one end of the rotor sleeve 8;

[0054] The inner wall of the rotor sleeve 8 is provided with a groove 801 which cooperates with the protrusion 101;

[0055] The protruding shaft 6 is provided with a shaft sleeve 601, and the shaft sleeve 601 cooperates with the slide groove 301, and the end of the protruding shaft 6 is provided with a retaining spring 602 to prevent the shaft sleeve 601 from separating;

[0056] The rotor sleeve 8 is a hollow cylindrical structure with an open bottom, and a through hole is provided at the center of the other bottom surface.

[0057] The circular slide rail 3 is an annular structure, the slide groove 301 is arranged on the inner wall of the circular slide rail 3, and the slide groove 301 includes a first slide groove 3011, a second slide groove 3012 and a third slide groove 3013; the first slide groove 3011 and the second slide groove 3012 are parallel to each other, and the first slide groove 3011 and the second slide groove 3012 are connected through the third slide groove 3013.

[0058] The raised shaft 6 is connected to the rotor sleeve 8 via screws.

[0059] The permanent magnet 7 is a neodymium iron boron magnet, a ferrite permanent magnet or other permanent magnets.

[0060] The stator core 4 includes a plurality of stator silicon steel sheets, each of which is a hollow circular sheet structure, wherein the inner half is provided with teeth and the other half is not provided with teeth. A plurality of stator silicon steel sheets are stacked together, and the teeth on each stator silicon steel sheet are stacked and combined to form a stator tooth 401; the enameled wire 5 is wound around the stator tooth 401; the material of the stator tooth is composed of magnetic conductive materials such as silicon steel sheet, soft magnetic ferrite, and amorphous steel sheet.

[0061] The number of the permanent magnets 7 is one pair or more than two pairs, and the permanent magnets 7 are evenly arranged on the outer wall of the rotor sleeve 8 .

[0062] The permanent magnets 7 are arranged around the outer wall of the rotor sleeve 8, and the shape of the permanent magnets 7 is semi-annular, and each pair of two permanent magnets 7 are arranged alternately.

[0063] The permanent magnet 7 is in a ring shape or a spiral shape similar to the spring, and each pair of two permanent magnets 7 are evenly arranged on the outer wall of the rotor sleeve 8 .

[0064] As shown in the figure, when the permanent magnet 7 is in a semi-annular shape, a pair of two permanent magnets 7 are staggeredly arranged on the outer wall of the rotor sleeve 8. When the permanent magnet 7 is in an annular shape or a spiral shape that is the same as the spring, the permanent magnet 7 is evenly arranged on the outer wall of the rotor sleeve 8.

[0065] The protrusion 101 cooperates with the groove 801 to position the rotor sleeve 8 so that the rotor sleeve 8 moves axially. The rotor sleeve 8 rotates with the rotor shaft 10, driving the rotor sleeve 8 to rotate. At the same time, the protrusion shaft 6 cooperates with the circular slide rail 3 to pull the rotor sleeve 8 to move axially at the same time. The rotor sleeve 08 is both rotating and moving axially.

[0066] The permanent magnets 7 are evenly distributed, and the distance between adjacent permanent magnets 7 is about 1.4 times the width of the permanent magnets 7 themselves;

[0067] The permanent magnet 7 disposed on the rotor sleeve 8 can be attached with adhesive and then fixed with carbon fiber wrapped with several layers of resin glue;

[0068] When the rotor shaft 10 rotates, the permanent magnet 7 on the rotor sleeve 8 will change the distance between the rotor sleeve 8 and the stator teeth 401 of the stator core 4 as the rotor sleeve 8 moves axially. The axial movement is controlled by a circular slide rail 3 to control the moving position;

[0069] When the raised shaft 6 rotates one circle in the circular slide 3, the rotor sleeve 8 moves forward and backward in the axial direction twice. The raised shaft 6 moves left and right in the circular slide 3, and rotates together with the rotor shaft 10 and the rotor sleeve 8. The rotor sleeve 10 and the permanent magnet 7 also move continuously in the axial direction while following the rotation. The movement of the permanent magnet 7 changes the corresponding position with the stator teeth 401 of the stator core 4. As a result, the stator teeth 401 and the permanent magnet 7 are always in a state of mutual attraction, and the motor will continuously rotate to output power;

[0070] like Fig.12 As shown, the stator core 4 includes a plurality of stator silicon steel sheets, each of which is circular, with teeth arranged on the inner half and no teeth arranged on the other half. A plurality of stator silicon steel sheets are stacked together, and the teeth on each stator silicon steel sheet are stacked to form a stator tooth 401;

[0071] The stator core 4 includes a plurality of stator silicon steel sheets, each of which is a hollow circular sheet structure, wherein the inner half is provided with teeth, and the other half is not provided with teeth. A plurality of stator silicon steel sheets are stacked together, and the teeth on each stator silicon steel sheet are stacked and combined to form a stator tooth 401; the enameled wire 5 is wound around the stator tooth 401;

[0072] like Fig.13 As described in FIG. 4 , the arrangement of the stator teeth 401 is shown. The three stator teeth 401 on the lower left and the three stator teeth 401 on the upper right are staggered. The staggered positions can be referred to in FIG. 04C . The stator teeth 401 are wound with enameled wires 05 .

[0073] The permanent magnet 7 is close to the stator teeth 401 to generate magnetic attraction to rotate the rotor shaft 10. The stator teeth 401 are made of magnetic conductive materials such as silicon steel sheets and soft ferrite. The permanent magnet 7 is a neodymium iron boron permanent magnet, a ferrite permanent magnet or other permanent magnets;

[0074] like Figure 18-21As shown, two stator teeth 401 and a permanent magnet 7 are divided into four motion states, ABCD. In state A, the permanent magnet 7 enters half of the stator tooth 401 due to mutual attraction, and continues to move forward due to mutual attraction, as shown in the direction of the arrow, and is in the power output state. In state B, the bar permanent magnet has completely entered the stator tooth 401, and the movement stops without power output. At this time, the rotor sleeve 8 moves to the right under the drive of the protruding shaft 6, driving the permanent magnet 7 to move downward, leaving the original stator tooth 401, and moving to the left front end C state of the second stator tooth 401 on the right. The upper side of the permanent magnet 7 is also very close to the stator tooth 401, but the magnetic force cannot attract it. Because of the limitation of the circular slide rail 3, it can only move in the direction of the second stator tooth 401 on the right. As shown in the main state D in the figure. The permanent magnet 7 moves in the direction of the second stator tooth 401 on the right again, causing the motor rotor to continue to rotate. The key point in the figure is that when the permanent magnet 7 in state B enters the stator tooth 401 and moves to the right, it needs a lot of force to leave due to the magnetic attraction between the stator tooth 401 and the permanent magnet 7. At this time, the enameled wire 5 on the stator tooth 401 needs to be energized to make the stator tooth 401 an electromagnet with the same polarity as the permanent magnet 7. The same polarity is rejected, so there is no magnetic attraction resistance, pushing the permanent magnet 7 to move downward and smoothly move to the left front end of the second tooth. Figure 19-21 The B state and C state in.

[0075] The rotor protruding shaft 6, the rotor sleeve 8 and the permanent magnet 7 are integrated, so while the rotor sleeve 8 rotates in the circular slide rail 3 via the protruding shaft 6, the rotor sleeve 8 itself also performs axial movement.

[0076] like Figure 22-23 As shown, the permanent magnet 7 can be made into a circle of permanent magnets 7, or two circles of bar permanent magnets 7, or more circles of permanent magnets 7. A spiral shape like a spring. The arrangement of the stator teeth 401 is also slightly modified like the magnet.

[0077] As shown in the figure, the motor is not powered when it rotates, and it is powered and consumes power when the rotor sleeve 8 moves axially. The faster the rotor sleeve 8 moves, the less power it consumes. The load size is not proportional to the power consumption, and the load size is not proportional to the motor current. This is a new type of motor that breaks the traditional concept. With the continuous advancement of new motor structural technology, the speed of axial movement is accelerated, the power consumption is getting smaller and smaller, and the efficiency of the motor will continue to increase. The characteristics of this motor will be suitable for various special occasions.

Claims

1. A pure permanent magnet torque motor, characterized in that: It comprises an end cover (1), a housing (2), a circular slide rail (3), a stator core (4), an enameled wire (5), a raised shaft (6), a permanent magnet (7), a rotor sleeve (8), a bearing (9) and a rotor shaft (10); The outer shell (2) is a cylindrical structure, and end covers (1) are provided at both ends of the outer shell (2), and a circular slide rail (3) and a stator core (4) are provided on the inner wall of the outer shell (2); The inner surface of the circular slide rail (3) is provided with a slide groove (301); The stator core (4) is provided with an enameled wire (5); The rotor shaft (10) is arranged in a rotor sleeve (8), and bearings (9) are arranged at both ends of the rotor shaft (10), and the two bearings (9) are respectively connected to the two end covers (1); a protrusion (101) is axially arranged on the outer wall of the rotor shaft (10), and the cross section of the protrusion (101) is semicircular; A permanent magnet (7) is arranged on the outer wall of the rotor sleeve (8), and a protruding shaft (6) is arranged at one end of the rotor sleeve (8); The inner wall of the rotor sleeve (8) is provided with a groove (801) that cooperates with the protrusion (101); The raised shaft (6) is provided with a shaft sleeve (601), and the shaft sleeve (601) cooperates with the slide groove (301), and the end of the raised shaft (6) is provided with a retaining spring (602) for preventing the shaft sleeve (601) from separating.

2. The pure permanent magnet torque motor according to claim 1 is characterized in that: The rotor shaft sleeve (8) is a hollow cylindrical structure with an open bottom surface, and a through hole is arranged at the center of the other bottom surface.

3. The pure permanent magnet torque motor according to claim 1 is characterized in that: The circular slide rail (3) is an annular structure, the slide groove (301) is arranged on the inner wall of the circular slide rail (3), and the slide groove (301) includes a first slide groove (3011), a second slide groove (3012) and a third slide groove (3013); the first slide groove (3011) and the second slide groove (3012) are parallel to each other, and the first slide groove (3011) and the second slide groove (3012) are connected through the third slide groove (3013).

4. The pure permanent magnet torque motor according to claim 1 is characterized in that: The raised shaft (6) is connected to the rotor sleeve (8) via screws.

5. The pure permanent magnet torque motor according to claim 1 is characterized in that: The permanent magnet (7) is a neodymium iron boron magnet, a ferrite permanent magnet or other permanent magnets.

6. The pure permanent magnet torque motor according to claim 1 is characterized in that: The stator core (4) comprises a plurality of stator silicon steel sheets, each of which is a hollow circular sheet structure, wherein the inner half of each stator silicon steel sheet is provided with teeth and the other half is not provided with teeth. A plurality of stator silicon steel sheets are stacked together, and the teeth on each stator silicon steel sheet are stacked together to form a stator tooth (401); the enameled wire (5) is wound around the stator tooth (401).

7. The pure permanent magnet torque motor according to claim 1 is characterized in that: The number of the permanent magnets (7) is one pair or more than two pairs, and the permanent magnets (7) are evenly arranged on the outer wall of the rotor sleeve (8).

8. The pure permanent magnet torque motor according to claim 7 is characterized in that: The permanent magnets (7) are arranged around the outer wall of the rotor sleeve (8), the shape of the permanent magnets (7) is semi-annular, and each pair of two permanent magnets (7) are arranged alternately.

9. The pure permanent magnet torque motor according to claim 7, characterized in that: The permanent magnet (7) is in the shape of a ring or a spiral shape similar to the spring, and each pair of two permanent magnets (7) are evenly arranged on the outer wall of the rotor sleeve (8).

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