Rotary opening and closing type magnetic actuator

Abstract

The utility model discloses a rotary opening and closing type magnetic actuator, which belongs to the technical field of magnetic actuators and comprises a first portion and a second portion. The first part comprises a first shell, a rotatable shaft rod is inserted in the center of the first shell, and the end of the shaft rod is connected with a first permanent magnet. The first permanent magnet comprises two sub permanent magnets which are symmetrically arranged, and magnetic poles of the two sub permanent magnets are opposite in the axis direction; the second part comprises a second shell, two second permanent magnets are symmetrically arranged in the second shell, and the magnetic poles of the two second permanent magnets are opposite in the axis direction of the second permanent magnets. When the first part is connected with the second part, the first permanent magnet is located between the two second permanent magnets. The first permanent magnet is connected with the shaft rod, the shaft rod can be connected with an external driving device so as to drive the first permanent magnet to rotate, and due to the fact that the second permanent magnet is fixedly arranged, the rotation of the first permanent magnet can change magnetic field distribution, the working end of the actuator is made to be magnetic or non-magnetic, and magnetic opening and closing are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to magnetic force executor technical field, concretely relates to a rotary open-close type magnetic force executor. BACKGROUND

[0002] Two permanent magnets are arranged in the magnetic force executor, the distribution of magnetic field is changed by rotating one permanent magnet, and the magnetism of the working end of the open-close magnetic force executor is realized. The rotation angle of the permanent magnet of the existing magnetic force executor has a limit, in order to realize the magnetic force switch of the magnetic force executor, it needs to rotate back and forth, and the power source of the existing device is mostly motor, so that the adaptability of the magnetic force executor and the motor is poor. Therefore, the utility model provides a rotary open-close type magnetic force executor. UTILITY MODEL CONTENTS

[0003] The utility model discloses a rotary open-close type magnetic force executor.

[0004] In order to solve the above technical problem, the utility model aims at realizing the following:

[0005] A rotary open-close type magnetic force executor, comprising: a first part and a second part.

[0006] The first part comprises a first shell, a rotatable shaft is arranged in the center of the first shell, the first end of the shaft extends out of the first end face of the first shell, and the second end is connected with a first permanent magnet. The first permanent magnet is located outside the second end face of the first shell, and comprises two symmetrically arranged sub-permanent magnets. The magnetic poles of the two sub-permanent magnets are opposite along the axial direction.

[0007] The second part comprises a second shell, two second permanent magnets are symmetrically arranged in the second shell, and the magnetic poles of the two second permanent magnets are opposite along the axial direction.

[0008] When the first part is connected with the second part, the first permanent magnet is located between the two second permanent magnets.

[0009] On the basis of the above scheme and as a preferred scheme of the above scheme, the shaft and the first shell are connected through a bearing.

[0010] On the basis of the above scheme and as a preferred scheme of the above scheme, the number of bearings is two, and the bearings are arranged close to the first end and the second end of the first shell respectively.

[0011] On the basis of the above scheme and as a preferred scheme of the above scheme, the first permanent magnet is in a cylindrical structure, and the two sub-permanent magnets are in a semicylindrical structure.

[0012] As a preferred scheme of the above scheme, the second permanent magnet is in a circular arc structure and is concentrically arranged with the first permanent magnet.

[0013] As a preferred scheme of the above scheme, the first end of the shaft rod is provided with a connecting part, and the first permanent magnet is detachably connected to the connecting part.

[0014] As a preferred scheme of the above scheme, the first end face and the second end face of the first shell are concave and provided with mounting grooves, and the bearing is mounted in the mounting grooves; and the connecting part covers the bearing at the second end of the first shell, and the cover plate at the first end of the first shell is detachably connected to cover the bearing at the first end of the first shell.

[0015] As a preferred scheme of the above scheme, the second shell is provided with a shielding ring, and the shielding ring is fixedly connected to the top of the second permanent magnet.

[0016] Compared with the prior art, the utility model has the advantages and beneficial effects that the first permanent magnet is connected with the shaft rod, the shaft rod can be connected with an external driving device, and the first permanent magnet is driven to rotate, the rotation of the first permanent magnet changes the magnetic field distribution, the working end of the actuator shows magnetism or non-magnetism, and the opening and closing of the magnetic force are realized. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the utility model.

[0018] Figure 2 It is a sectional view of the utility model.

[0019] Figure 3 It is a first part structural schematic view of the utility model.

[0020] Figure 4 It is a second part structural explosion schematic view of the utility model.

[0021] Figure 5 It is a first part structural explosion schematic view of the utility model.

[0022] Figure 6 It is a permanent magnet pole change schematic view of the utility model.

[0023] In the drawing: 1, first shell; 2, shaft rod; 3, first permanent magnet; 4, second shell; 5, second permanent magnet; 6, bearing; 7, connecting part; 8, cover plate; 9, shielding ring. DETAILED DESCRIPTION

[0024] In order to make the technical scheme of the utility model better understood by the skilled in the art, the preferred embodiment of the utility model is described below in conjunction with specific embodiments, but it should be understood that the drawings are only used for exemplary illustration and cannot be understood as limiting the utility model; in order to better illustrate the embodiments, some components in the drawings can be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings can be omitted. The positional relationship described in the drawings is only used for exemplary illustration and cannot be understood as limiting the utility model.

[0025] As shown in Figure 1 and Figure 2 , a rotary open-close type magnetic force actuator comprises a first part and a second part which are detachably connected. Preferably, the first part and the second part are detachably connected by screws.

[0026] As shown in Figure 3 , the first part comprises a first housing 1, and the first housing 1 is centrally provided with a hole in which a rotatable shaft 2 is inserted. The shaft 2 extends out of the first end face of the first housing 1 at the first end thereof, and the second end of the shaft 2 is provided with a connecting portion 7 to which a first permanent magnet 3 is detachably connected, and the first permanent magnet 3 is located outside the second end face of the first housing 1.

[0027] The first permanent magnet 3 comprises two symmetrically arranged sub-permanent magnets, and the magnetic poles of the two sub-permanent magnets are opposite along the axial direction thereof. Preferably, the first permanent magnet 3 has a cylindrical structure, and the two sub-permanent magnets have a semi-cylindrical structure. The specific arrangement of the magnetic poles is shown in the drawings.

[0028] Preferably, as shown in Figure 5 , the shaft 2 and the first housing 1 are rotatable relative to each other through bearings 6, and the number of bearings 6 is two, which are respectively arranged near the first end and the second end of the first housing 1. Specifically, the first end face and the second end face of the first housing 1 are both concave to form mounting grooves, and the two bearings 6 are respectively mounted in the two mounting grooves. At the same time, the connecting portion 7 is circular and covers the bearing 6 located at the second end of the first housing 1; the cover plate 8 detachably connected to the first end of the first housing 1 covers the bearing 6 located at the first end of the first housing 1, thereby hiding the two bearings 6. The cover plate 8 is detachable from the first housing 1 by screws, and when the cover plate 8 is connected to the first housing 1, the top surface thereof is flush with the first end face of the first housing 1 and does not protrude from the first housing 1.

[0029] As shown in Figure 4 , the second part comprises a second housing 4, and the second housing 4 is symmetrically provided with two second permanent magnets 5 inside, and the magnetic poles of the two second permanent magnets 5 are opposite along the axial direction thereof.

[0030] Preferably, the second permanent magnet 5 is in a circular arc structure and is arranged concentrically with the first permanent magnet 3. A shielding ring 9 is arranged in the second housing 4 and is fixedly connected to the top of the second permanent magnet 5 to fix the second permanent magnet 5. The shielding ring 9 is made of low-carbon steel.

[0031] When the first part is connected with the second part, the first permanent magnet 3 is located between the two second permanent magnets 5.

[0032] As shown in Figure 6 the two sub-permanent magnets of the first permanent magnet 3 correspond to the two second permanent magnets 5 respectively. When an external driving mechanism (motor) drives the first permanent magnet 3 to rotate through the shaft 2, the correspondence between the two sub-permanent magnets and the two second permanent magnets 5 can be switched, i.e. the first sub-permanent magnet is switched from facing the first second permanent magnet 5 to facing the second second permanent magnet 5, so as to change the magnetic field distribution and make the bottom end (working end) of the second part exhibit magnetism or non-magnetism.

[0033] The preferred embodiments of the utility model are described in detail above. It should be understood that those skilled in the art can make many modifications and changes without creative labor according to the conception of the utility model. Therefore, any technical scheme obtained by logical analysis, reasoning or limited experiment on the basis of the prior art according to the conception of the utility model shall be within the protection scope defined by the claims.

Claims

1. A rotary opening and closing magnetic actuator, characterized in that, include: Part One and Part Two; The first part includes a first outer shell (1), a rotatable shaft (2) is inserted at the center of the first outer shell (1), the first end of the shaft (2) extends to the outside of the first end face of the first outer shell (1), and the second end is connected to a first permanent magnet (3); the first permanent magnet (3) is located outside the second end face of the first outer shell (1), and it includes two sub-permanent magnets symmetrically arranged, and the magnetic poles of the two sub-permanent magnets are opposite along their axial directions; The second part includes a second outer shell (4), and two second permanent magnets (5) are symmetrically arranged inside the second outer shell (4). The magnetic poles of the two second permanent magnets (5) are opposite along their axes. When the first part is connected to the second part, the first permanent magnet (3) is located between the two second permanent magnets (5).

2. The rotary opening and closing magnetic actuator according to claim 1, characterized in that, The shaft (2) is connected to the first housing (1) via a bearing (6).

3. A rotary opening and closing magnetic actuator according to claim 2, characterized in that, The number of bearings (6) is two, which are respectively located near the first end and the second end of the first housing (1).

4. The rotary opening and closing magnetic actuator according to claim 1, characterized in that, The first permanent magnet (3) has a cylindrical structure, and the two sub-permanent magnets have a semi-cylindrical structure.

5. A rotary opening and closing magnetic actuator according to claim 4, characterized in that, The second permanent magnet (5) has an arc structure and is concentrically arranged with the first permanent magnet (3).

6. A rotary opening and closing magnetic actuator according to claim 2, characterized in that, The first end of the shaft (2) is provided with a connecting part (7), and the first permanent magnet (3) is detachably connected to the connecting part (7).

7. A rotary opening and closing magnetic actuator according to claim 6, characterized in that, The first housing (1) has a recessed mounting groove on both the first end face and the second end face, and the bearing (6) is installed in the mounting groove; and the connecting part (7) covers the bearing (6) located at the second end of the first housing (1), and the cover plate (8) detachably connected to the first end of the first housing (1) covers the bearing (6) located at the first end of the first housing (1).

8. A rotary opening and closing magnetic actuator according to claim 1, characterized in that, The second outer shell (4) is provided with a shielding ring (9), which is fixedly connected to the top of the second permanent magnet (5).

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