Samarium cobalt magnetic steel for relay

Abstract

The utility model relates to the technical field of samarium cobalt magnetic steel, and discloses samarium cobalt magnetic steel for a relay, which comprises a magnetic steel main body, a magnetic steel shaft is fixedly connected to the front surface of the magnetic steel main body, first grooves are formed in the left side and the right side of the magnetic steel main body, and vertical plates are fixedly connected to the upper side and the lower side of the inner wall of each first groove. Limiting columns are attached to the side face of the vertical plate and the inner wall of the first groove, magnetic steel sheets are fixedly connected to the side faces of the limiting columns, second grooves are formed in the front side and the rear side of the vertical plate, the inner walls of the second grooves make contact with the surfaces of the magnetic steel sheets, and elastic locking frames are fixedly connected to the upper surface of the magnetic steel body and the side face of the vertical plate. According to the samarium-cobalt magnetic steel, through cooperation of the magnetic steel body, the first groove, the vertical plate, the limiting column, the second groove, the elastic locking frame, the hollow block and the pressing support, the magnetic steel sheets on the samarium-cobalt magnetic steel are more convenient to disassemble and assemble, and therefore maintenance personnel can replace the damaged magnetic steel sheets on the samarium-cobalt magnetic steel conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of samarium cobalt magnets, in particular to a samarium cobalt magnet for relays. Background Art

[0002] Samarium cobalt magnet is a rare earth magnet. It is a magnetic tool material made of samarium, cobalt and other rare earth metal materials through proportioning, melting into alloy, crushing, pressing and sintering. It has high magnetic energy product and extremely low temperature coefficient. The maximum working temperature can reach 350℃, and there is no limit to negative temperature. When the working temperature is above 180℃, its maximum magnetic energy product, coercivity, temperature stability and chemical stability all exceed those of neodymium iron boron permanent magnet materials.

[0003] A relay is an electrical control device. When the change of input quantity (excitation quantity) reaches the specified requirement, it causes a predetermined step change in the controlled quantity in the electrical output circuit. It has an interactive relationship between the control system (also called input circuit) and the controlled system (also called output circuit). It is usually used in automated control circuits. It is actually an "automatic switch" that uses a small current to control a large current.

[0004] At present, samarium cobalt magnets used in relays are mainly composed of a magnet body, a magnet shaft and a magnet sheet. For example, Chinese patent publication No. CN205140880U discloses a magnet assembly for relays. However, the magnet sheet on the magnet body is troublesome to disassemble and assemble, which makes it inconvenient for maintenance personnel to replace damaged magnet sheets. At the same time, since users cannot intuitively judge the magnetic force of the magnet sheet, it is more troublesome for users to judge whether the magnet sheet has insufficient magnetic force. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art, such as: at present, the samarium cobalt magnet for relays is mainly composed of a magnet body, a magnet shaft and a magnet sheet, but the magnet sheet on the magnet body is more troublesome to disassemble and assemble, which makes it inconvenient for maintenance personnel to replace the damaged magnet sheet. At the same time, since the user cannot intuitively judge the magnetic force of the magnet sheet, it is more troublesome for the user to judge whether the magnetic force of the magnet sheet is insufficient. A samarium cobalt magnet for relay is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A samarium cobalt magnet for a relay comprises a magnet body, a magnet shaft is fixedly connected to the front of the magnet body, a first groove is provided on the left and right sides of the magnet body, a vertical plate is fixedly connected to the upper and lower sides of the inner wall of the first groove, a limit column is fitted on the side of the vertical plate and the inner wall of the first groove, a magnetic steel sheet is fixedly connected to the side of the limit column, a second groove is provided on the front and back sides of the vertical plate, the inner wall of the second groove is in contact with the surface of the magnetic steel sheet, an elastic locking frame is fixedly connected to the upper surface of the magnet body and the side of the vertical plate, a hollow block is fitted on the surface of the elastic locking frame, the surface of the hollow block is fixedly connected to the surface of the magnetic steel sheet, a pressing bracket is fixedly connected to the upper surface of the magnet body, and the left and right sides of the pressing bracket are in contact with the side of the elastic locking frame.

[0008] Preferably, the elastic locking frame includes a first sliding sleeve, the bottom of which is fixedly connected to the upper surface of the magnetic steel body, the inner wall of the first sliding sleeve is fitted with an L-shaped plate, the side of the L-shaped plate and the side of the vertical plate are fixedly connected with a first spring, the side of the L-shaped plate is fixedly connected with a locking column, the surface of the locking column is in contact with the inner wall of the hollow block, the upper surface of the L-shaped plate is fixedly connected with a trapezoidal block, and the left and right sides of the pressing bracket are in contact with the side of the trapezoidal block.

[0009] Preferably, the pressing bracket includes a bolt, a threaded barrel is threadedly connected to the surface of the bolt, the bottom of the threaded barrel is fixedly connected to the upper surface of the magnetic steel body, and a pressing circular plate is fixedly connected to the surface of the bolt, and the left and right sides of the pressing circular plate are in contact with the side of the trapezoidal block.

[0010] Preferably, a rectangular hole is opened inside the vertical plate, and positioning square columns are fixedly connected to the upper and lower sides of the inner wall of the rectangular hole, and second sliding sleeves are fitted on the left and right sides of the positioning square column and the upper and lower sides of the inner wall of the rectangular hole, and a second spring is fixedly connected to the inner wall of the second sliding sleeve and the front and rear sides of the positioning square column, and an iron column is fixedly connected to the side of the second sliding sleeve.

[0011] Preferably, the bottom of the iron column and the side of the second sliding sleeve are both fixedly connected with an indicating block, the side of the vertical plate is fixedly connected with a scale, and the bottom of the scale contacts the upper surface of the indicating block.

[0012] Preferably, the maximum distance between the L-shaped plate and the hollow block is greater than the length of the locking column.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) The utility model cooperates with the elastic locking frame and the pressing bracket so that the user can make the locking column on the elastic locking frame contact or separate with the hollow block by rotating the upper bolt on the pressing bracket. At the same time, when the locking column is inserted into the hollow block, the vertical plate, the second groove and the limiting column cooperate to fix the magnetic steel sheet on the magnetic steel body. When the locking column is separated from the hollow block, the magnetic steel sheet can be directly separated from the magnetic steel body. Then, through the cooperation of the magnetic steel body, the first groove, the vertical plate, the limiting column, the second groove, the elastic locking frame, the hollow block and the pressing bracket, the magnetic steel sheet on the samarium cobalt magnet is more convenient to disassemble and assemble, thereby facilitating maintenance personnel to replace damaged magnetic steel sheets on the samarium cobalt magnet.

[0015] (2) The utility model provides a rectangular hole, a positioning square column, a second sleeve, a second spring and an iron column, wherein when a user pushes the iron column to make it contact with a magnetic steel sheet, the magnetic steel sheet can exert suction on the iron column to make the iron column and the magnetic steel sheet in close contact with each other. When the magnetic force of the magnetic steel sheet is insufficient, a gap will be generated between the magnetic steel sheet and the iron column due to the restoring force of the second spring. At this time, the user can judge the size of the magnetic force of the magnetic steel sheet by observing whether there is a gap between the iron column and the magnetic steel sheet. Furthermore, through the coordination of the rectangular hole, the positioning square column, the second sleeve, the second spring and the iron column, the user can intuitively judge the size of the magnetic force of the magnetic steel sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a left view of the structure of the utility model;

[0018] Figure 3 It is a front view of the magnetic steel body in the utility model;

[0019] Figure 4 It is a side view of the vertical plate in the utility model;

[0020] Figure 5 It is a front view of the magnetic steel sheet in the utility model;

[0021] Figure 6 It is a front view of the elastic locking frame in the utility model;

[0022] Figure 7 It is a front view of the pressing bracket in the utility model;

[0023] Figure 8 It is a top view of the second sliding sleeve in the utility model.

[0024] In the figure: 1. magnetic steel body; 2. magnetic steel shaft; 3. first groove; 4. vertical plate; 5. limit column; 6. magnetic steel sheet; 7. second groove; 8. elastic locking frame; 81. first sliding sleeve; 82. L-shaped plate; 83. first spring; 84. locking column; 85. trapezoidal block; 9. hollow block; 10. pressing bracket; 101. bolt; 102. threaded cylinder; 103. pressing circular plate; 11. rectangular hole; 12. positioning square column; 13. second sliding sleeve; 14. second spring; 15. iron column; 16. indicator block; 17. scale. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0027] Embodiment 1:

[0028] Reference Figure 1-7 A samarium cobalt magnet for a relay comprises a magnet body 1, a magnet shaft 2 is fixedly connected to the front of the magnet body 1, a first groove 3 is provided on both the left and right sides of the magnet body 1, a vertical plate 4 is fixedly connected to the upper and lower sides of the inner wall of the first groove 3, a limit column 5 is fitted on the side of the vertical plate 4 and the inner wall of the first groove 3, a magnetic steel sheet 6 is fixedly connected to the side of the limit column 5, a second groove 7 is provided on the front and rear sides of the vertical plate 4, the inner wall of the second groove 7 is in contact with the surface of the magnetic steel sheet 6, when the magnet After the steel sheet 6 is inserted into the second groove 7, the magnetic steel sheet 6 can be clamped on the magnetic steel body 1 through the cooperation of the limiting column 5, the second groove 7 and the vertical plate 4. The upper surface of the magnetic steel body 1 and the side of the vertical plate 4 are fixedly connected with an elastic locking frame 8. The surface of the elastic locking frame 8 is fitted with a hollow block 9. The surface of the hollow block 9 is fixedly connected to the surface of the magnetic steel sheet 6. The upper surface of the magnetic steel body 1 is fixedly connected with a pressing bracket 10. The left and right sides of the pressing bracket 10 are in contact with the side of the elastic locking frame 8.

[0029] The elastic locking frame 8 includes a first sliding sleeve 81, the bottom of the first sliding sleeve 81 is fixedly connected to the upper surface of the magnetic steel body 1, and an L-shaped plate 82 is arranged on the inner wall of the first sliding sleeve 81. The L-shaped plate 82 can only move left and right through the first sliding sleeve 81. The side of the L-shaped plate 82 and the side of the vertical plate 4 are fixedly connected with a first spring 83. The side of the L-shaped plate 82 is fixedly connected with a locking column 84. The surface of the locking column 84 contacts the inner wall of the hollow block 9. The L-shaped plate 8 2 and the hollow block 9 is greater than the length of the locking column 84. When the locking column 84 is inserted into the hollow block 9, the magnetic steel sheet 6 can be fixed on the magnetic steel body 1 through the cooperation of the vertical plate 4, the second groove 7 and the limiting column 5. When the locking column 84 is separated from the hollow block 9, the magnetic steel sheet 6 can be directly separated from the magnetic steel body 1. The upper surface of the L-shaped plate 82 is fixedly connected with the trapezoidal block 85, and the left and right sides of the pressing bracket 10 are in contact with the side of the trapezoidal block 85.

[0030] The pressing bracket 10 includes a bolt 101, and a threaded barrel 102 is threadedly connected to the surface of the bolt 101. The bottom of the threaded barrel 102 is fixedly connected to the upper surface of the magnetic steel body 1. The surface of the bolt 101 is fixedly connected to a pressing circular plate 103. The left and right sides of the pressing circular plate 103 are in contact with the side of the trapezoidal block 85. The side of the trapezoidal block 85 close to the pressing circular plate 103 is an inclined surface. When the pressing circular plate 103 moves downward, the pressure of the pressing circular plate 103 on the inclined surface of the trapezoidal block 85 can increase the distance between the left and right L-shaped plates 82. When the pressing circular plate 103 moves upward, the pulling force of the first spring 83 on the L-shaped plate 82 can reduce the distance between the left and right L-shaped plates 82.

[0031] Embodiment 2:

[0032] Reference Figure 1-8 A rectangular hole 11 is provided inside the vertical plate 4, and a positioning square column 12 is fixedly connected to the upper and lower sides of the inner wall of the rectangular hole 11, and a second sliding sleeve 13 is fitted on the left and right sides of the positioning square column 12 and the upper and lower sides of the inner wall of the rectangular hole 11. The second sliding sleeve 13 can only move forward and backward in the rectangular hole 11 through the positioning square column 12, and the inner wall of the second sliding sleeve 13 and the front and rear sides of the positioning square column 12 are fixedly connected with a second spring 14, and the side of the second sliding sleeve 13 is fixedly connected with an iron column 15. When the user pushes the iron column 15 to make the iron column 15 contact with the magnetic steel sheet 6, the iron column 15 and the magnetic steel sheet 6 can be closely contacted through the suction force of the magnetic steel sheet 6 on the iron column 15. When the magnetic force of the magnetic steel sheet 6 is insufficient, a gap will be generated between the magnetic steel sheet 6 and the iron column 15 through the restoring force of the second spring 14. At this time, the user can judge the size of the magnetic force of the magnetic steel sheet 6 by observing whether there is a gap between the iron column 15 and the magnetic steel sheet 6.

[0033] The bottom of the iron column 15 and the side of the second sliding sleeve 13 are fixedly connected with an indicating block 16, and the side of the vertical plate 4 is fixedly connected with a scale 17. The bottom of the scale 17 contacts the upper surface of the indicating block 16. Through the cooperation of the indicating block 16 and the scale 17, the user can intuitively judge the gap between the iron column 15 and the magnetic steel sheet 6.

[0034] In the present invention, when the user replaces the magnetic steel sheet 6 on the samarium cobalt magnet, the user first rotates the bolt 101 to make the pressing circular plate 103 move upward under the cooperation of the bolt 101 and the threaded cylinder 102, and the first spring 83 exerts a pulling force on the L-shaped plate 82 to reduce the distance between the left and right L-shaped plates 82. When the locking column 84 is separated from the hollow block 9, the magnetic steel sheet 6 can be directly separated from the magnetic steel body 1. Then, the new magnetic steel sheet 6 is inserted into the second groove 7, and the limiting column 5 is inserted into the first groove 3. When the magnetic steel sheet 6 is clamped on the magnetic steel body 1 through the cooperation of the limiting column 5, the second groove 7 and the vertical plate 4, and then, by rotating the bolt 101, the pressing circular plate 103 moves downward under the cooperation of the bolt 101 and the threaded tube 102. At this time, the pressure of the pressing circular plate 103 on the inclined surface of the trapezoidal block 85 can increase the distance between the left and right L-shaped plates 82. When the locking column 84 is inserted into the hollow block 9, the magnetic steel sheet 6 can be fixed on the magnetic steel body 1 through the cooperation of the locking column 84 and the hollow block 9.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

Claims

1. A samarium cobalt magnet for a relay, comprising a magnet body (1), characterized in that: The front side of the magnetic steel body (1) is fixedly connected to a magnetic steel shaft (2); the left and right sides of the magnetic steel body (1) are both provided with first grooves (3); the upper and lower sides of the inner wall of the first groove (3) are both fixedly connected to vertical plates (4); the side surfaces of the vertical plates (4) and the inner wall of the first groove (3) are both fitted with limit posts (5); the side surfaces of the limit posts (5) are fixedly connected to magnetic steel sheets (6); the front and rear sides of the vertical plates (4) are both provided with second grooves (7); the second grooves The inner wall of (7) contacts the surface of the magnetic steel sheet (6), the upper surface of the magnetic steel body (1) and the side of the vertical plate (4) are fixedly connected with an elastic locking frame (8), the surface of the elastic locking frame (8) is fitted with a hollow block (9), the surface of the hollow block (9) is fixedly connected to the surface of the magnetic steel sheet (6), the upper surface of the magnetic steel body (1) is fixedly connected with a pressing bracket (10), and the left and right sides of the pressing bracket (10) are in contact with the side of the elastic locking frame (8).

2. The samarium cobalt magnet for relay according to claim 1, characterized in that: The elastic locking frame (8) comprises a first sliding sleeve (81), the bottom of which is fixedly connected to the upper surface of the magnetic steel body (1), the inner wall of the first sliding sleeve (81) is fitted with an L-shaped plate (82), the side of the L-shaped plate (82) and the side of the vertical plate (4) are both fixedly connected with a first spring (83), the side of the L-shaped plate (82) is fixedly connected with a locking column (84), the surface of the locking column (84) is in contact with the inner wall of the hollow block (9), the upper surface of the L-shaped plate (82) is fixedly connected with a trapezoidal block (85), and the left and right sides of the pressing bracket (10) are both in contact with the side of the trapezoidal block (85).

3. The samarium cobalt magnet for relay according to claim 2, characterized in that: The pressing bracket (10) comprises a bolt (101), the surface of the bolt (101) is threadedly connected to a threaded barrel (102), the bottom of the threaded barrel (102) is fixedly connected to the upper surface of the magnetic steel body (1), the surface of the bolt (101) is fixedly connected to a pressing circular plate (103), and the left and right sides of the pressing circular plate (103) are in contact with the side surfaces of the trapezoidal block (85).

4. The samarium cobalt magnet for relay according to claim 1, characterized in that: A rectangular hole (11) is provided inside the vertical plate (4), and a positioning square column (12) is fixedly connected to the upper and lower sides of the inner wall of the rectangular hole (11), and a second sliding sleeve (13) is fitted on the left and right sides of the positioning square column (12) and the upper and lower sides of the inner wall of the rectangular hole (11), and a second spring (14) is fixedly connected to the inner wall of the second sliding sleeve (13) and the front and rear sides of the positioning square column (12), and an iron column (15) is fixedly connected to the side of the second sliding sleeve (13).

5. The samarium cobalt magnet for relay according to claim 4, characterized in that: The bottom of the iron column (15) and the side of the second sliding sleeve (13) are both fixedly connected with an indicating block (16), and the side of the vertical plate (4) is fixedly connected with a scale (17), and the bottom of the scale (17) contacts the upper surface of the indicating block (16).

6. The samarium cobalt magnet for relay according to claim 2, characterized in that: The maximum distance between the L-shaped plate (82) and the hollow block (9) is greater than the length of the locking column (84).

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