Asymmetric magnet actuator

Abstract

The asymmetrical magnet actuator comprises an asymmetrical shell, a rotatable permanent magnet, a control knob, a gear handle and a detachable sealing cover, the asymmetrical shell is of a hollow structure with an opening part and comprises a bottom plate and a top plate which are oppositely arranged, the bottom plate comprises a cambered surface plate in the middle and surface plates on the two sides, and the top plate is arranged on the cambered surface plate. The thickness of the cambered plate is smaller than that of the plane plate, and the thickness of the top plate is smaller than that of the cambered plate. The rotatable permanent magnet is rotatably contained in the hollow structure, one end of the control knob is connected with the rotatable permanent magnet, the other end of the control knob is connected with the gear handle, the gear handle can swing clockwise or anticlockwise around the axial direction of the rotatable permanent magnet, and the detachable sealing cover is matched with the opening part and detachably installed on the asymmetric shell. According to the scheme, the shell is of an asymmetric structure, magnetic lines converge at the top in a working state, the attraction force of the magnet is multiplied, a steel workpiece is easily lifted away in a non-working state, and the requirement for the Brinell hardness test force can be well met.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the brinell hardness gauge measurement technical field, specifically relates to an asymmetric magnet actuator. BACKGROUND

[0002] The existing magnetic force table seat uses small magnetic force magnetite ferrite, and has small suction, generally only several kilograms to several tens of kilograms, and cannot meet the requirement of 187.5 kg force test when the pressure head diameter is 2.5 mm in brinell hardness measurement.

[0003] The existing magnetic force table seat has the following defects: the magnetic force table seat has insufficient suction, especially on the arc surface of a pipeline, and cannot firmly fix the portable brinell hardness gauge, so that the brinell hardness test cannot be carried out; the shell of the magnetic force table seat is heavy; when the magnetic force line of the magnetic force table seat is closed, part of the magnetic force line penetrates the workpiece, so that the workpiece is not easy to lift off the working surface and the workpiece is easy to be damaged.

[0004] Therefore, in order to solve the above technical problems, it is necessary to provide a novel magnet actuator, which reduces the weight and improves the magnetic force to overcome the defects in the prior art. UTILITY MODEL CONTENTS

[0005] In view of the defects of the prior art, the utility model aims to provide an asymmetric magnet actuator, which solves the problems of insufficient magnetic force in the prior art and difficulty in lifting off the working surface when not working.

[0006] The utility model can be realized by the following technical schemes:

[0007] The utility model discloses an asymmetric magnet actuator, which comprises an asymmetric shell, a rotatable permanent magnet, a detachable cover, a control knob and a gear handle, the asymmetric shell is a hollow structure with an opening part, the asymmetric shell comprises oppositely arranged bottom plate and top plate, the bottom plate is a multi-thickness structure, the bottom plate comprises arc surface plate in the middle and plane plate on both sides, the thickness of the arc surface plate is less than that of the plane plate, the thickness of the top plate is uniform, and the thickness of the top plate is less than that of the arc surface plate; the rotatable permanent magnet is rotatably arranged in the hollow structure, one end of the control knob is connected with the rotatable permanent magnet, the other end of the control knob is connected with the gear handle, the gear handle can swing clockwise or counterclockwise around the axial direction of the rotatable permanent magnet, the detachable cover is detachably installed in the opening part and the asymmetric shell, and the gear handle is connected with the control knob outside the detachable cover.

[0008] In some embodiments, the rotatable permanent magnet is a cylindrical structure.

[0009] In some embodiments, the rotatable permanent magnet is provided with a groove at an end thereof, and the control knob is recessed in the groove to be connected with the rotatable permanent magnet.

[0010] In some embodiments, the detachable cover is detachably mounted with the asymmetric shell by detachable screws.

[0011] In some embodiments, the detachable cover is further provided with a first pin and a second pin, which are symmetrically arranged at two ends of the detachable cover, the first pin is used to limit the rotation angle of the gear handle within a first angle when the gear handle is rotated clockwise, and the second pin is used to limit the rotation angle of the gear handle within a second angle when the gear handle is rotated counterclockwise.

[0012] In some embodiments, the first angle is 90°, and the second angle is 90°.

[0013] In some embodiments, the control knob comprises a first connecting part and a second connecting part, one side of the first connecting part is connected with the rotatable permanent magnet, the other side of the first connecting part is connected with the second connecting part, and after the detachable cover is connected with the asymmetric shell, the second connecting part is at least partially located outside the detachable cover.

[0014] In some embodiments, the second connecting part is provided with an embedding groove, and the gear handle is embedded in the embedding groove.

[0015] In some embodiments, the asymmetric shell is a one-piece structure, and the material of the asymmetric shell is magnetically conductive electrical steel.

[0016] In some embodiments, the rotatable permanent magnet is a rare earth permanent magnet, and the rotatable permanent magnet is radially magnetized, and the radial direction is from N pole to S pole.

[0017] The utility model discloses a magnet actuator with asymmetric shell, which is characterized by the following beneficial effects: (1) the shell of the magnet actuator is of asymmetric structure. The thickness of the top plate is relatively thin, the thickness of the bottom plate is relatively thick, and the middle part is designed as a curved surface. When the magnet actuator is opened, i.e. in the working state, the magnetic lines converge at the top plate, and the magnetic lines mainly gather on the steel workpiece at the bottom plate. The magnet suction force is multiplied, which can better meet the requirement of Brinell hardness test force. When the magnet actuator is closed, i.e. in the non-working state, the magnetic lines are closed in the shell, and the magnetic force of the steel workpiece at the bottom plate is zero. The magnet can be easily lifted off the working surface of the steel workpiece. The curved surface design makes the contact surface quickly decrease when the magnet is lifted off, which is more convenient for the separation of the magnet and the steel workpiece. (2) In the technical solution, the middle part of the bottom plate is designed as a curved surface, and the two sides are designed as flat surfaces, which can adapt to flat and curved steel workpieces, and the application range is wider. (3) In the technical solution, the rotatable permanent magnet is designed as a cylindrical structure, which can create a more optimized magnetic field distribution, thereby improving the performance of the actuator. (4) A groove is formed in the rotatable permanent magnet, which facilitates the installation of the control knob, and further facilitates the rotation control of the rotatable permanent magnet. (5) The detachable cover is connected with the asymmetric shell through detachable screws. When it is necessary to replace or check the internal components, the screws can be simply detached, which makes the equipment more easy to maintain and replace. (6) The shell is designed as a magnetically conductive electrical steel. This material has high magnetic permeability, which can improve the transmission efficiency of the magnetic field, thereby improving the performance of the equipment. (7) The rotatable permanent magnet is designed as a rare earth permanent magnet. Compared with the magnetite ferrite ferrite of the prior art, the suction force is increased by several times under the same volume. (8) The asymmetric shell is designed as an integrated structure. This structure is more stable, which can improve the durability and reliability of the equipment. The first pin and the second pin are arranged on the detachable cover to limit the rotation angle of the shift handle, so that the operator can more accurately control the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings required to be used in the following embodiment or prior art description will be briefly introduced.

[0019] Figure 1 is the combined drawing of the asymmetric magnet actuator of the embodiment of the present application;

[0020] Figure 2 is the sectional view of the asymmetric magnet actuator of the embodiment of the present application;

[0021] Figure 3 is the front view of the asymmetric magnet actuator of the embodiment of the present application;

[0022] Figure 4 is the structural drawing of the asymmetric shell of the embodiment of the present application;

[0023] Figure 5 is a magnetic pole diagram of the rotatable permanent magnet of the embodiment of the present application;

[0024] Figure 6 is a schematic diagram of the asymmetric magnet actuator when closed of the embodiment of the present application;

[0025] Figure 7 is a schematic diagram of the asymmetric magnet actuator when opened of the embodiment of the present application;

[0026] In the figure, 1 is an asymmetric housing, 2 is a rotatable permanent magnet, 3 is a detachable cover, 4 is a control knob, 5 is a gear handle, 6 is a screw, 7 is a pin, 8 is a steel workpiece, and 9 is a groove. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0028] The present application discloses an asymmetric magnet actuator, specifically, referring to Figures 1 to 4 As shown in the figure, the asymmetric magnet actuator comprises an asymmetric housing 1, a rotatable permanent magnet 2, a detachable cover 3, a control knob 4, and a gear handle 5. The asymmetric housing 1 is a hollow structure with an open part. The asymmetric housing 1 comprises a bottom plate and a top plate arranged oppositely. The bottom plate is a multi-thickness structure, comprising an arc surface plate in the middle and plane plates on both sides. The thickness of the arc surface plate is smaller than that of the plane plates. The thickness of the top plate is uniform and smaller than that of the arc surface plate. The rotatable permanent magnet 2 is rotatably contained in the hollow structure. One end of the control knob 4 is connected with the rotatable permanent magnet 2, and the other end of the control knob 4 is connected with the gear handle 5. The gear handle 5 can swing clockwise or counterclockwise around the axial direction of the rotatable permanent magnet 2. The detachable cover 3 is detachably installed with the asymmetric housing 1 at the open part. The gear handle 5 is connected with the control knob 4 outside the detachable cover 3.

[0029] It can be understood that the housing of the magnet actuator of the present technical solution is of an asymmetric structure. Since the thickness of the top plate is relatively thin and the thickness of the bottom plate is relatively thick, and the middle part is designed as an arc surface, the magnet actuator is in the opened state as shown in the figure, i.e. the working state. The magnetic lines converge at the top plate, and the magnetic lines mainly converge on the steel workpiece 8 at the bottom plate. The magnetic attraction force is multiplied, which can better meet the requirement of the Brinell hardness test force. Figure 7 Figure 6 ​In the shown closed, i.e. non-working state, the magnetic lines of force are closed in the housing, the magnetic force of the steel workpiece 8 at the bottom plate is zero, the magnet can be easily lifted away from the working surface of the steel workpiece 8, and the arc surface design makes the contact surface quickly decrease when being lifted away, which is more convenient for the separation of the magnet and the steel workpiece 8. Further, in the technical solution, the middle of the bottom plate is designed as an arc surface, and the two sides are designed as flat surfaces, which can adapt to the flat and arc steel workpiece 8, and the application range is wider.

[0030] In some embodiments, as shown in Figs. 1-3, the rotatable permanent magnet 2 can be configured as a cylindrical structure. In some embodiments, a groove 9 is formed on the rotatable permanent magnet 2, the groove 9 is formed at the end of the rotatable permanent magnet 2, and the control knob 4 is recessed in the groove 9 to realize the connection with the rotatable permanent magnet 2. Figure 1 、 Figure 2 and Figure 5 In some embodiments, a groove 9 is formed on the rotatable permanent magnet 2, the groove 9 is formed at the end of the rotatable permanent magnet 2, and the control knob 4 is recessed in the groove 9 to realize the connection with the rotatable permanent magnet 2.

[0031] It can be understood that, in the technical solution, the rotatable permanent magnet 2 is designed as a cylindrical structure, which can create a more optimized magnetic field distribution, thereby improving the performance of the actuator; further, the groove 9 is formed on the rotatable permanent magnet 2, which facilitates the installation of the control knob 4, and further facilitates the rotation control of the rotatable permanent magnet 2.

[0032] In some embodiments, the detachable cover 3 is detachably installed with the asymmetric housing 1 through detachable screws 6. The detachable cover 3 is connected with the asymmetric housing 1 through the detachable screws 6, and when it is necessary to replace or check the internal components, only the screws 6 need to be simply detached, which makes the device more easily maintained and replaced.

[0033] In some embodiments, the detachable cover 3 is further provided with pins 7 (including first pins and second pins), the first pins and the second pins are symmetrically arranged at the two ends of the detachable cover, the first pins are used to limit the rotation angle of the gear handle 5 within a first angle when the gear handle 5 is rotated clockwise, and the second pins are used to limit the rotation angle of the gear handle 5 within a second angle when the gear handle 5 is rotated counterclockwise. In some embodiments, the first angle is 90°, and the second angle is 90°. It can be understood that, by designing the asymmetric housing 1 as an integrated structure, the structure is more stable, which can improve the durability and reliability of the device, and by arranging the first pins and the second pins on the detachable cover 3 to limit the rotation angle of the gear handle 5, the operator can more accurately control the device.

[0034] In some embodiments, the control knob 4 includes a first connecting part and a second connecting part, one side of the first connecting part is connected with the rotatable permanent magnet 2, the other side of the first connecting part is connected with the second connecting part, and after the detachable cover is connected with the asymmetric housing 1, the second connecting part is at least partially located outside the detachable cover.

[0035] In some embodiments, the second connecting part is provided with an embedding groove, and the gear handle 5 is embedded in the embedding groove.

[0036] In some embodiments, the asymmetric shell 1 is of an integrated structure, and the material of the asymmetric shell 1 is magnetically conductive electrical steel. In some embodiments, the rotatable permanent magnet 2 is a rare earth permanent magnet, and the rotatable permanent magnet 2 is radially magnetized, with the radial direction being the direction from N pole to S pole. It can be understood that the shell is designed to be magnetically conductive electrical steel, which has high magnetic permeability and can improve the transmission efficiency of the magnetic field, thereby improving the performance of the device; further, the rotatable permanent magnet 2 is designed to be a rare earth permanent magnet, which has several times larger suction force than the magnetite ferrite of the prior art in the same volume.

[0037] Further, for the convenience of understanding, the working principle of the asymmetric magnet actuator of the utility model is summarized as follows: at the beginning of the Brinell hardness test, it is determined that the magnet actuator is opened, i.e. it is in a working state, and the gear handle 5 and the control knob 4 are used to rotate the rotatable permanent magnet 2 by 90 degrees clockwise or counterclockwise, at this time, the N pole of the rotatable permanent magnet 2 passes through the asymmetric shell and the steel workpiece 8 to the S pole of the rotatable permanent magnet 2, forming a magnetic circuit closure, at this time, the top plate of the asymmetric shell 1 is relatively thin, the magnetic force lines converge, and the magnetic force lines mainly converge on the steel workpiece 8 at the bottom, the suction force of the rotatable permanent magnet 2 is amplified by several times, and the suction force can reach several hundred kilograms, the magnet actuator is firmly adsorbed on the steel workpiece 8, and the Brinell hardness test force requirement can be better met. After the Brinell hardness test is completed, the magnet actuator is closed, i.e. it is in a non-working state, and the rotatable permanent magnet 2 is rotated back to the original position, at this time, the N pole of the rotatable permanent magnet 2 directly reaches the S pole of the rotatable permanent magnet 2 through the asymmetric shell 1, forming a magnetic circuit closure, the bottom of the asymmetric shell 1 is relatively thick, the magnetic force lines are completely closed in the asymmetric shell, the magnetic circuit does not pass through the steel workpiece 8, and the magnetic force in the steel workpiece 8 is zero, so the magnet actuator can be easily lifted off the steel workpiece 8.

[0038] The above shows and describes the basic principles, main features and advantages of the utility model. It should be understood by those skilled in the art that the utility model is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed.

Claims

1. An asymmetric magnet actuator, characterized by, The asymmetric magnet actuator comprises an asymmetric shell (1), a rotatable permanent magnet (2), a detachable cover (3), a control knob (4) and a gear handle (5), the asymmetric shell (1) is a hollow structure with an opening part, the asymmetric shell (1) comprises oppositely arranged bottom plate and top plate, the bottom plate is a multi-thickness structure, the bottom plate comprises an arc surface plate in the middle and plane plates on both sides, the thickness of the arc surface plate is smaller than that of the plane plates, the thickness of the top plate is uniform, and the thickness of the top plate is smaller than that of the arc surface plate; the rotatable permanent magnet (2) is rotatably contained in the hollow structure, one end of the control knob (4) is connected with the rotatable permanent magnet (2), the other end of the control knob (4) is connected with the gear handle (5), the gear handle (5) can swing clockwise or counterclockwise around the axial direction of the rotatable permanent magnet (2), and the detachable cover (3) is detachably mounted with the asymmetric shell (1) in the opening part, and the gear handle (5) is connected with the control knob (4) outside the detachable cover (3).

2. The asymmetric magnet actuator of claim 1, wherein, The rotatable permanent magnet (2) is a cylindrical structure.

3. The asymmetric magnet actuator of claim 2, wherein, The rotatable permanent magnet (2) is provided with a groove (9), the groove (9) is arranged at the end of the rotatable permanent magnet (2), and the control knob (4) is recessed in the groove (9) to realize the connection with the rotatable permanent magnet (2).

4. The asymmetric magnet actuator of claim 1, wherein, The detachable cover (3) is detachably mounted with the asymmetric shell (1) through detachable screws (6).

5. The asymmetric magnet actuator of claim 4, wherein, The detachable cover (3) is further provided with a first pin and a second pin, the first pin and the second pin are symmetrically arranged at both ends of the detachable cover, the first pin is used for limiting the rotation angle of the gear handle (5) within a first angle when the gear handle (5) rotates clockwise, and the second pin is used for limiting the rotation angle of the gear handle (5) within a second angle when the gear handle (5) rotates counterclockwise.

6. The asymmetric magnet actuator of claim 5, wherein, The first angle is 90°, and the second angle is 90°.

7. The asymmetric magnet actuator of claim 1, wherein, The control knob (4) comprises a first connecting part and a second connecting part, one side of the first connecting part is connected with the rotatable permanent magnet (2), the other side of the first connecting part is connected with the second connecting part, and after the detachable cover is connected with the asymmetric shell (1), the second connecting part is at least partially located outside the detachable cover.

8. The asymmetric magnet actuator of claim 7, wherein, The second connecting part is provided with an embedding groove, and the gear handle (5) is embedded in the embedding groove.

9. The asymmetric magnet actuator of claim 1, wherein, The asymmetric shell (1) is an integral structure, and the material of the asymmetric shell (1) is magnetically conductive electrical iron.

10. The asymmetric magnet actuator of claim 1, wherein, The rotatable permanent magnet (2) is a rare earth permanent magnet, the rotatable permanent magnet (2) is radially magnetized, and the radial direction is from N pole to S pole.

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