CN108818413A - A kind of strong magnetic permanent-magnet is fixed and attaching/detaching apparatus - Google Patents

Abstract

The invention belongs to the technical field of equipment/pipelines in chemical industry, environmental protection and other industries, and specifically relates to a device for fixing and disassembling a strong magnetic permanent magnet. The device includes a permanent magnet fixing box 2, a permanent magnet, an adjustment block 4, a yoke 5, a protective cover fixing block 6, a protective cover 7, a fixed box cover 8, and a disassembly tool 9. The device of the invention provides an effective solution for the external magnetic field applied to equipment/pipelines, which can not only maximize the internal magnetic field formed by the permanent magnet, but also effectively isolate the external magnetic flux leakage. At the same time, during the disassembly and assembly process of the permanent magnet, the use of disassembly and assembly tools can ensure that its position is fully controllable, and the disassembly and assembly are easy and labor-saving, and the operation is convenient. The overall structure of the device is compact, safe and reliable, and can be widely used in equipment/pipelines that use permanent magnets to form a magnetic field.

Description

A device for fixing and disassembling a strong magnetic permanent magnet

technical field

The invention belongs to the technical field of equipment/pipelines in chemical industry, environmental protection and other industries, and specifically relates to a device for fixing and disassembling a strong magnetic permanent magnet.

Background technique

The third-generation rare earth permanent magnet materials developed in recent years have the advantages of high magnetic energy product, high coercive force, and high mechanical strength. This kind of strong magnetic permanent magnet can effectively reduce the size of the magnetic circuit and the volume of the equipment, and has good functional indicators and operating characteristics, so it is widely used in magnetic components in magnetic equipment/pipelines. However, due to its excessive magnetic force, it brings great risks to operators during disassembly and assembly. The existing strong magnetic permanent magnet fixing and disassembling mechanism is difficult to meet the requirements of enhancing the internal magnetic field strength, reliable fixing, and safe disassembly and assembly at the same time.

Therefore, there is an urgent need to develop a strong magnetic permanent magnet fixing and dismounting device, so that a plurality of strong magnetic permanent magnets can be fixed on the outer wall of the equipment/pipeline, so that the magnetic field generated inside the equipment/pipeline can reach the maximum, and can be disassembled Safe and reliable during installation and use.

Contents of the invention

The technical problem to be solved by the present invention is to provide a device for fixing and disassembling a strong magnetic permanent magnet, which simultaneously meets the requirements of enhanced internal magnetic field strength, reliable fixing, and safe disassembly and assembly.

In order to realize this object, the technical scheme that the present invention takes is:

A device for fixing and disassembling a strong magnetic permanent magnet, which is installed on the outer wall of the cylinder of the equipment. Disassembly tools;

The number of permanent magnet fixing boxes is N, the front end of the permanent magnet fixing box is welded on the outer wall of the equipment cylinder, and a fixing box cover is arranged on the upper part of the permanent magnet fixing box;

The yoke iron is welded to the rear end of the permanent magnet fixing box, and they are welded to each other to form a ring, so that the magnetic path of the permanent magnet forms a closed loop and enhances the internal magnetic field strength of the equipment;

Each permanent magnet fixing box is equipped with an adjustment block, which is fixed on the yoke iron through the adjustment block fixing bolt, and the position of the adjustment block moves forward and backward by rotating the block adjustment bolt;

The protective cover fixing block is connected to the yoke iron through the fixing block mounting bolt;

The protective cover is located outside all parts of the device, and is connected with the protective cover fixing block with protective cover installation bolts to completely isolate the device from the outside world, so that a safe distance is formed between the ferromagnetic object and the permanent magnet;

The permanent magnet is disassembled and assembled by the disassembly tool.

Further, in the device for fixing and disassembling a strong magnetic permanent magnet as described above, the number of permanent magnet fixing boxes is N, where N≥4.

Furthermore, in the device for fixing and disassembling a strong magnetic permanent magnet as described above, the material of the yoke satisfies the magnetic permeability requirements of the system.

Furthermore, in the device for fixing and disassembling a strong magnetic permanent magnet as described above, the material of the yoke is one of A3 steel and industrial pure iron.

Furthermore, in the device for fixing and disassembling a ferromagnetic permanent magnet as described above, the protective cover is made of non-ferromagnetic material.

Further, as described above, a strong magnetic permanent magnet fixing and disassembling device, the disassembling tool includes:

Rotate the screw, move up and down along the wear-resistant sleeve by shaking the handle, the front section of the rotating screw is connected with the fixed plate with a bearing, so that the fixed plate moves together with it;

The permanent magnet holding cylinder, the permanent magnet moves inside, and the ferromagnetic material outside is isolated by the permanent magnet holding cylinder. The side plate protruding from the permanent magnet holding cylinder has an opening for placing a wear-resistant sleeve, and one side is left for The opening where the skid and the permanent magnet enter, two long holes are left on one side for the movable clamp rod to pass through, and the lower end is connected with the permanent magnet fixing box in the form of bolts;

The wear-resistant sleeve is welded in the opening of the side plate of the permanent magnet holding cylinder;

The skid is fixed in the permanent magnet holding cylinder through movable clamping rods, and clamps the permanent magnet with a pair of movable clamping rods under the fixed plate to limit its movement;

Two pairs of movable clamping rods are connected to the fixed plate through threads, the upper pair passes through and fixes the skid, and the lower pair supports the permanent magnet;

The upper end of the fixed plate is connected with the rotating screw through bearings, and two pairs of movable clamping rods are screwed into the four threaded holes, so that the clamping rods move up and down together with the fixed plate;

Small handle, screwed into the nut on one side of the permanent magnet fixing box, used to assist in adjusting the position of the permanent magnet during disassembly, assist in maintaining the position of the permanent magnet when installing the permanent magnet, and make the permanent magnet leave when the permanent magnet is disassembled Fixed box.

Further, for a strong magnetic permanent magnet fixing and disassembling device as described above, the installation process of a single permanent magnet is as follows:

Insert the permanent magnet from the opening on one side of the permanent magnet holding cylinder between the skid and a pair of movable clamping rods under the fixed plate, and shake the rotating screw to drop it completely away from the opening;

Connect the disassembly tool to the permanent magnet fixing box through the four positioning holes under the permanent magnet holding cylinder;

Screw the small handle into the permanent magnet fixing box to the limit position;

Continue to shake the rotating screw until the set position is reached, move the pair of movable clamping rods under the fixing plate out of the fixing plate, continue shaking the rotating screw and the small handle until the permanent magnet is completely pressed into the permanent magnet fixing box;

Remove the disassembly tool, one end of the permanent magnet in the permanent magnet fixing box is sucked on the adjustment pad, unscrew the pad fixing bolt, tighten the pad adjustment bolt, and push the permanent magnet to the equipment cylinder;

Close the fixed box cover to complete the installation of a single permanent magnet.

Further, in the device for fixing and disassembling a strong magnetic permanent magnet as described above, the dismounting process of a single permanent magnet is the reverse process of the installation process.

The beneficial effects of the present invention are: the device of the present invention provides an effective solution for the external magnetic field applied to the equipment/pipeline, which can not only maximize the internal magnetic field formed by the permanent magnet, but also effectively isolate the external magnetic flux leakage. At the same time, during the disassembly and assembly process of the permanent magnet, the use of disassembly and assembly tools can ensure that its position is fully controllable, and the disassembly and assembly are easy and labor-saving, and the operation is convenient. The overall structure of the device is compact, safe and reliable, and can be widely used in equipment/pipelines that use permanent magnets to form a magnetic field.

Description of drawings

Fig. 1 is the top view of the present invention;

Fig. 2 is A-A sectional view of the present invention;

Fig. 3 is B-B sectional view of the present invention;

Fig. 4 is a schematic diagram of dismounting tool of the present invention;

Fig. 5 is a schematic diagram of the adjustment pad of the present invention;

Main components in the figure: 1. Equipment cylinder/pipeline cylinder, 2. Permanent magnet fixing box, 3. Permanent magnet, 4. Adjusting pad, 5. Yoke, 501, pad adjusting bolt, 502, pad fixing Bolt, 6, protective cover fixed block, 601, fixed block mounting bolt, 602, protective cover mounting bolt, 7, protective cover, 8, fixed box cover, 9, disassembly tool, 901, rotating screw rod, 902, permanent magnet keeps Tube, 903, wear-resistant cover, 904, skid, 905, movable clamp rod, 906, fixed plate, 907, small crank.

Detailed ways

The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1, a strong magnetic permanent magnet fixing and disassembling device of the present invention is installed on the outer wall of the cylinder of the equipment. Cover fixing block 6, protective cover 7, fixed box cover 8, dismounting tool 9;

The quantity of the permanent magnet fixed box 2 is N, and the front end of the permanent magnet fixed box 2 is welded on the outer wall of the equipment cylinder, and the fixed box cover 8 is set on the permanent magnet fixed box 2 top; in the present embodiment, the permanent magnet fixed box 2 The quantity is N, N≥4;

The yoke 5 is welded to the rear end of the permanent magnet fixing box 2, and is connected to each other to form a ring, so that the magnetic path of the permanent magnet forms a closed loop and enhances the internal magnetic field strength of the equipment; in the present embodiment, the material of the yoke 5 is A3 steel , one of industrial pure iron;

Each permanent magnet fixing box 2 is provided with an adjusting pad 4 inside, which is fixed on the yoke 5 by adjusting the pad fixing bolt 502, and the position of the adjusting pad 4 moves back and forth by rotating the pad adjusting bolt 501;

The protective cover fixing block 6 is connected to the yoke iron 5 through the fixing block mounting bolt 601;

The protective cover 7 is located outside all parts of the device, and is connected with the protective cover fixing block 6 with the protective cover mounting bolts 602 to completely isolate the device from the outside world, so that a safe distance is formed between the ferromagnetic object and the permanent magnet; in this embodiment, the protective cover Cover 7 is made of non-ferromagnetic material;

Carry out the dismounting of permanent magnet by dismounting tool 9. In this embodiment, the assembly and disassembly tool 9 includes:

The rotating screw 901 moves up and down along the wear-resistant sleeve 903 by shaking the handle, and the front section of the rotating screw 901 is connected with the fixed plate 906 with a bearing, so that the fixed plate 906 moves together with it;

The permanent magnet holding cylinder 902, the permanent magnet moves inside it, and the external ferromagnetic material is isolated by the permanent magnet holding cylinder 902. There is an opening for placing the wear-resistant sleeve 903 on the side plate protruding from the permanent magnet holding cylinder 902. There is an opening for the skid 904 and the permanent magnet 3 to enter, and two long holes for the movable clamp rod 905 to pass through are left on one side, and the lower end is connected with the permanent magnet fixing box 2 in the form of bolts;

The wear-resistant sleeve 903 is welded in the opening of the side plate of the permanent magnet holding cylinder 902;

The skid 904 is fixed in the permanent magnet holding cylinder 902 through the movable clamp rod 905, and clamps the permanent magnet 3 with a pair of movable clamp rods below the fixed plate 906 to limit its movement;

Two pairs of movable clamp rods 905 are connected to the fixed plate 906 through threads, the upper pair passes through and fixes the skid, and the lower pair supports the permanent magnet 3;

The upper end of the fixed plate 906 is connected with the rotating screw rod 901 through bearings, and two pairs of movable clamping rods 905 are screwed into the four threaded holes, so that the clamping rods move up and down together with the fixed plate;

The small crank 907 is screwed into the nut on one side of the permanent magnet fixing box 2 to assist in adjusting the position of the permanent magnet 3 during the disassembly process, and to assist in maintaining the position of the permanent magnet when the permanent magnet 3 is installed. Make permanent magnet 3 leave fixed box during.

The above-mentioned strong magnetic permanent magnet fixing and disassembling device, the installation process of a single permanent magnet is as follows:

Insert the permanent magnet 3 from the opening on one side of the permanent magnet holding cylinder 902 between the skid 904 and a pair of movable clamping rods 905 below the fixed plate 906, and shake the rotating screw 901 to make it drop completely away from the opening;

Connect the dismounting tool 9 to the permanent magnet fixing box 2 through the four positioning holes below the permanent magnet holding cylinder 902;

Screw the small handle 907 into the permanent magnet fixing box 2 to the limit position;

Continue to shake the rotating screw 901, and move the pair of movable clamp rods 905 below the fixed plate 906 out of the fixed plate 906 after reaching the set position, continue to shake the rotating screw 901 and the small handle 907 until the permanent magnet 3 is completely pressed into the permanent magnet and fixed. box 2;

Remove the dismounting tool 9, one end of the permanent magnet 3 in the permanent magnet fixing box 2 is sucked on the adjustment pad 4, unscrew the pad fixing bolt 502, tighten the pad adjustment bolt 501, and push the permanent magnet 3 to the equipment barrel;

Cover the fixed box cover 8 to complete the installation of the single permanent magnet 3.

The dismounting process of a single permanent magnet 3 is the reverse process of the above-mentioned installation process.

Claims (9)

1. A strong magnetic permanent magnet fixing and dismounting device, installed on the outer wall of the cylinder of the equipment, is characterized in that: The device includes a permanent magnet fixing box (2), a permanent magnet (3), an adjustment block (4), a yoke (5), a protective cover fixing block (6), a protective cover (7), and a fixed box cover (8) , disassembly tool (9); The number of permanent magnet fixed boxes (2) is N, the front end of the permanent magnet fixed box (2) is welded on the outer wall of the equipment cylinder, and a fixed box cover (8) is arranged on the top of the permanent magnet fixed box (2); The yoke (5) is welded to the rear end of the permanent magnet fixing box (2), and is connected to each other by welding to form a ring, so that the magnetic path of the permanent magnet forms a closed loop and enhances the magnetic field strength inside the device; Each permanent magnet fixing box (2) is provided with an adjustment block (4), which is fixed on the yoke (5) through the adjustment block fixing bolt (502), and the position of the adjustment block (4) is adjusted by rotating the block The bolt (501) moves back and forth; The protective cover fixed block (6) is connected on the yoke iron (5) by the fixed block mounting bolt (601); The protective cover (7) is located outside all parts of the device, and is connected with the protective cover fixing block (6) by the protective cover mounting bolt (602), completely isolating the device from the outside world, so that a safe distance is formed between the ferromagnetic object and the permanent magnet; Carry out the disassembly and assembly of the permanent magnet through the disassembly tool (9). 2. A ferromagnetic permanent magnet fixing and disassembling device as claimed in claim 1, characterized in that: the number of permanent magnet fixing boxes (2) is N, and N≥4. 3. A device for fixing and disassembling a ferromagnetic permanent magnet as claimed in claim 1, characterized in that: the material of the yoke (5) meets the magnetic permeability requirements of the system. 4. A device for fixing and disassembling a ferromagnetic permanent magnet as claimed in claim 3, characterized in that: the material of the yoke (5) is one of A3 steel and industrial pure iron. 5. A ferromagnetic permanent magnet fixing and dismounting device as claimed in claim 1, characterized in that: the protective cover (7) is made of non-ferromagnetic material. 6. A kind of strong magnetic permanent magnet fixing and dismounting device as claimed in claim 1, is characterized in that: dismounting tool (9) comprises: The rotating screw (901) moves up and down along the wear-resistant sleeve (903) by shaking the handle, and the front section of the rotating screw (901) is connected with the fixed plate (906) with a bearing, so that the fixed plate (906) moves together with it; The permanent magnet holds the cylinder (902), the permanent magnet moves inside it, and the ferromagnetic substance outside is isolated by the permanent magnet holding cylinder (902), and there is a wear-resistant sleeve ( 903), one side has an opening for the skid (904) and the permanent magnet (3) to enter, and one side has two long holes for the movable clamp rod (905) to pass through, and the lower end is fixed with the permanent magnet. The box (2) is connected in the form of bolts; The wear-resistant sleeve (903) is welded in the opening of the side plate of the permanent magnet holding cylinder (902); The skid (904) is fixed in the permanent magnet holding cylinder (902) through the movable clamping rod (905), and clamps the permanent magnet (3) with a pair of movable clamping rods under the fixed plate (906) to limit its movement; Two pairs of movable clamp rods (905) are connected to the fixed plate (906) through threads, the upper pair passes through and fixes the skid, and the lower pair supports the permanent magnet (3); The upper end of the fixed plate (906) is connected with the rotating screw rod (901) through bearings, and two pairs of movable clamping rods (905) are screwed into the four threaded holes, so that the clamping rods move up and down together with the fixed plate; The small crank (907) is screwed into the nut on one side of the permanent magnet fixing box (2) to assist in adjusting the position of the permanent magnet (3) during disassembly, and to assist in maintaining the position of the permanent magnet when installing the permanent magnet. Make the permanent magnet leave the fixed box when the permanent magnet is disassembled. 7. A ferromagnetic permanent magnet fixing and disassembling device as claimed in claim 1, characterized in that: the number of permanent magnet fixing boxes (2) is N, and N≥4; The material of the yoke (5) is one of A3 steel and industrial pure iron; The protective cover (7) is made of non-ferromagnetic material; Assembly and disassembly tools (9) include: The rotating screw (901) moves up and down along the wear-resistant sleeve 3 by shaking the handle, and the front section of the rotating screw (901) is connected with the fixed plate (906) with a bearing, so that the fixed plate (906) moves together with it; The permanent magnet holds the cylinder (902), the permanent magnet moves inside it, and the ferromagnetic substance outside is isolated by the permanent magnet holding cylinder (902), and there is a wear-resistant sleeve ( 903), one side has an opening for the skid (904) and the permanent magnet (3) to enter, and one side has two long holes for the movable clamp rod (905) to pass through, and the lower end is fixed with the permanent magnet. The box (2) is connected in the form of bolts; The wear-resistant sleeve (903) is welded in the opening of the side plate of the permanent magnet holding cylinder (902); The skid (904) is fixed in the permanent magnet holding cylinder (902) through the movable clamping rod (905), and clamps the permanent magnet (3) with a pair of movable clamping rods under the fixed plate (906) to limit its movement; Two pairs of movable clamp rods (905) are connected to the fixed plate (906) through threads, the upper pair passes through and fixes the skid, and the lower pair supports the permanent magnet (3); The upper end of the fixed plate (906) is connected with the rotating screw rod (901) through bearings, and two pairs of movable clamping rods (905) are screwed into the four threaded holes, so that the clamping rods move up and down together with the fixed plate; The small handle (907), screwed into the nut on one side of the permanent magnet fixing box (2), is used to assist in adjusting the position of the permanent magnet (3) during disassembly, and to assist in maintaining the permanent magnet when installing the permanent magnet (3) When the permanent magnet (3) is disassembled, the permanent magnet (3) leaves the fixed box. 8. A strong magnetic permanent magnet fixing and disassembling device as claimed in claim 7, characterized in that: the installation process of a single permanent magnet is as follows: Insert the permanent magnet (3) from the opening on one side of the permanent magnet holding cylinder (902) between the skid (904) and a pair of movable clamp rods (905) under the fixed plate (906), and shake the rotating screw (901) so that it descends completely out of the opening; Connect the disassembly tool (9) to the permanent magnet fixing box (2) through the four positioning holes below the permanent magnet holding cylinder (902); Screw the small handle (907) into the permanent magnet fixing box (2) to the limit position; Continue to shake the rotating screw (901), and move the pair of movable clamp rods (905) under the fixed plate (906) out of the fixed plate (906) after reaching the set position, and continue to shake the rotating screw (901) and the small handle (907) , until the permanent magnet (3) is completely pressed into the permanent magnet fixing box (2); Remove the disassembly tool (9), and one end of the permanent magnet (3) in the permanent magnet fixing box (2) is sucked on the adjustment pad (4), unscrew the pad fixing bolt (502), and tighten the pad to adjust The bolt (501) pushes the permanent magnet (3) to the equipment cylinder; Cover the fixed box cover (8) to complete the installation of the single permanent magnet (3). 9. A ferromagnetic permanent magnet fixing and dismounting device as claimed in claim 8, characterized in that: the dismounting process of a single permanent magnet (3) is the reverse process of the installation process.