Winding type opening and closing coil structure of magnetic particle flaw detector

Abstract

The utility model relates to the technical field of magnetic particle flaw detectors, in particular to a winding type opening and closing coil structure of a magnetic particle flaw detector, which comprises a mounting frame, a coil is fixedly connected to the mounting frame through a connecting support, and a conductive interface is fixedly connected to one side of the coil. A mounting plate is arranged between the inner walls of the mounting frame, the side wall of the mounting plate is fixedly connected with a moving block, the moving block is in sliding connection with the mounting frame, the mounting frame is fixedly connected with a driver, the output end of the driver is fixedly connected with a push rod, and the push rod is fixedly connected with the coil. The push rod is fixedly connected with the moving block, and the mounting plate is provided with a conductive rod matched with each conductive insertion block. According to the utility model, the number of turns of the coil is adjusted through different conducting rods connected with the coil, so that the magnetic field intensity of the coil is adjusted, the current does not need to be adjusted, and electric sparks are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic powder flaw detectors, in particular to a winding type opening and closing coil structure of a magnetic powder flaw detector. Background Art

[0002] Magnetic particle testing is the most widely used flaw detection method. It detects damage to an object through changes in the magnetism at the cracks of the object. During the magnetic particle testing operation, the object is magnetized by using a coil to make the object magnetic. The required magnetic strength varies depending on the object.

[0003] In existing coil structures, the magnetic properties are generally adjusted by adjusting the magnitude of the current. However, when the current is large, electric sparks are likely to appear on the coil, thereby causing safety problems and being detrimental to the use of the device. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a winding type opening and closing coil structure of a magnetic particle flaw detector.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A winding open and close coil structure of a magnetic particle flaw detector comprises: a mounting frame, the mounting frame is fixedly connected to a coil through a connecting bracket, one side of the coil is fixedly connected to a conductive interface, and the other side of the coil is fixedly connected to a plurality of conductive plug-in blocks; a mounting plate is provided between the inner walls of the mounting frame, the side walls of the mounting plate are fixedly connected to a moving block, the moving block is slidably connected to the mounting frame, a driver is fixedly connected to the output end of the driver, the pushing rod is fixedly connected to the moving block, and a conductive plug connected to each conductive plug-in block is installed on the mounting plate. A conductive rod matching the through-plug block, an adjustment structure is installed on the mounting plate, the adjustment structure includes a mounting cavity opened inside the mounting plate, the conductive rod is slidably connected to the inside of the mounting cavity, and each of the conductive rods passes through the inner wall of the mounting cavity and extends to the outside of the mounting plate, and one end of each conductive rod located on the inner side of the mounting cavity is fixedly connected to the adjustment plate, and each of the adjusting plates is rotatably connected to an adjustment rod, each of the adjusting rods passes through the inner wall of the mounting cavity and extends to the outside of the mounting plate, and a fixed through groove corresponding to the position of each adjusting rod is opened on the inner wall of the mounting cavity.

[0007] In order to better achieve the above purpose, the present invention adopts a further technical solution: the conductive rod is located on the outer side of the mounting plate and is covered with a protective shell, the protective shell is fixedly connected to the mounting plate, and each of the protective shells is made of insulating material.

[0008] In order to better achieve the above purpose, the present invention adopts a further technical solution: a connecting spring is sleeved on each of the conductive rods, and the two ends of the connecting spring are respectively fixedly connected to the corresponding adjustment plate and the inner wall of the installation cavity.

[0009] In order to better achieve the above purpose, the present invention adopts a further technical solution: a fixed block is fixedly sleeved on the outer side of the adjusting rod, and the shape of the fixed block matches the fixed through slot.

[0010] In order to better achieve the above purpose, the present invention adopts a further technical solution: each of the conductive rods is connected to a power source via a wire.

[0011] The beneficial effects of the present invention are as follows: by adjusting the number of turns of the coil by different conductive rods connected to the coil, the magnetic field strength of the coil is adjusted, and there is no need to adjust the current, thereby avoiding the generation of electric sparks, making it safer and more reliable and conducive to normal use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural schematic diagram of a winding open-and-close coil structure of a magnetic particle flaw detector proposed in the utility model;

[0013] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0014] Figure 3 This is a schematic diagram of the top view of the fixed through slot of the winding open and close coil structure of the magnetic particle flaw detector proposed by the utility model.

[0015] In the figure: 1 mounting frame, 2 coil, 3 conducting plug, 4 mounting plate, 5 moving block, 6 mounting cavity, 7 driver, 8 push rod, 9 adjustment plate, 10 conductive rod, 11 protective shell, 12 connecting spring, 13 adjustment rod, 14 fixed block, 15 fixed through slot. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0017] Reference Figure 1-Figure 3As shown, a winding opening and closing coil structure of a magnetic particle flaw detector includes: a mounting frame 1, the mounting frame 1 is fixedly connected to a coil 2 through a connecting bracket, one side of the coil 2 is fixedly connected to a conductive interface, the magnetic field strength is related to the number of turns of the coil 2, the strength of the current, etc., and the other side of the coil 2 is fixedly connected to a plurality of conductive plug-ins 3. A mounting plate 4 is provided between the inner walls of the mounting frame 1, and a moving block 5 is fixedly connected to the side wall of the mounting plate 4. The moving block 5 is slidably connected to the mounting frame 1, and a driver 7 is fixedly connected to the mounting frame 1. The output end of the driver 7 is fixedly connected to a push rod 8, and the push rod 8 is fixedly connected to the moving block 5. A conductive rod 10 matching each conductive plug-in 3 is installed on the mounting plate 4, and an adjustment structure is installed on the mounting plate 4. ; Start the driver 7, and the output end of the driver 7 pushes the rod 8 to move, so that the moving block 5 and the mounting plate 4 move accordingly, driving the conductive rod 10 to move together, so that the coil 2 is turned on and a magnetic field is generated; the adjustment structure includes a mounting cavity 6 opened inside the mounting plate 4, the conductive rod 10 is slidably connected to the inside of the mounting cavity 6, and each conductive rod 10 passes through the inner wall of the mounting cavity 6 and extends to the outside of the mounting plate 4, and each conductive rod 10 is located at one end of the inner side of the mounting cavity 6. An adjusting plate 9 is fixedly connected to each adjusting plate 9. An adjusting rod 13 is rotatably connected to each adjusting plate 9. Each adjusting rod 13 passes through the inner wall of the mounting cavity 6 and extends to the outside of the mounting plate 4. A fixed through groove 1 corresponding to the position of each adjusting rod 13 is provided on the inner wall of the mounting cavity 6. 5; The position of the conductive rod 10 is adjusted by the adjusting rod 13 so that the conductive rod 10 extends to the outside of the protective shell 11. At this time, the conductive rod 10 can be connected to the conductive plug 3, so that the coil 2 is conductive. By changing the position of the conductive plug 3, the number of turns of the conductive coil 2 can be controlled, thereby adjusting the strength of the magnetic field; the conductive rod 10 is located on the outer side of the outer part of the mounting plate 4 and is provided with a protective shell 11. The protective shell 11 is fixedly connected to the mounting plate 4, and each protective shell 11 is made of insulating material. The protective shell 11 plays a role in preventing the conductive rod 10 from contacting the conductive plug 3 when it is not adjusted. At the same time, the insulating material can prevent leakage and reduce danger; each conductive rod 10 is provided with a sleeve There is a connecting spring 12, and the two ends of the connecting spring 12 are fixedly connected to the corresponding adjustment plate 9 and the inner wall of the installation cavity 6. When the conductive rod 10 is retracted to the inside of the protective shell 11, the connecting spring 12 is in a stretched state, so the elastic force of the connecting spring 12 can cause the conductive rod 10 to move outward; the outer side of the adjusting rod 13 is fixedly sleeved with a fixed card block 14, and the shape of the fixed card block 14 matches the fixed through groove 15. The fixed card block 14 can clamp the adjusting rod 13 and fix it, thereby ensuring the position of the conductive rod 10; each conductive rod 10 is connected to the power supply through a wire, and the power supply is also connected to the coil 2 through a conductive interface, so that after the conductive rod 10 is connected to the conductive plug block 3, a closed loop can be formed.

[0018] When the present invention is used, according to the required strength of the magnetic field, the appropriate adjusting rod 13 is rotated, and the adjusting rod 13 is rotated to match the position of the fixed block 14 with the fixed through-slot 15. Under the action of the elastic force of the connecting spring 12, the adjusting plate 9 and the conductive rod 10 move outward, so that the conductive rod 10 extends to the outside of the protective shell 11. At the same time, the driver 7 is started, and the output end of the driver 7 pushes the rod 8 to move, thereby causing the moving block 5 and the mounting plate 4 to move accordingly, driving the conductive rod 10 to move together, and allowing the conductive rod 10 to be inserted into the conductive plug 3, so that the coil 2 is conductive and a magnetic field is generated. At the same time, the number of turns of the conductive coil 2 can be controlled by the different positions of the conductive conductive plug 3, thereby adjusting the strength of the magnetic field.

Claims

1. A winding open and close coil structure of a magnetic particle detector, characterized in that: include: A mounting frame (1), wherein the mounting frame (1) is fixedly connected to a coil (2) via a connecting bracket, one side of the coil (2) is fixedly connected to a conductive interface, and the other side of the coil (2) is fixedly connected to a plurality of conductive plug-ins (3); a mounting plate (4) is provided between the inner walls of the mounting frame (1), a moving block (5) is fixedly connected to the side wall of the mounting plate (4), and the moving block (5) is slidably connected to the mounting frame (1); a driver (7) is fixedly connected to the mounting frame (1), and an output end of the driver (7) is fixedly connected to a push rod (8), and the push rod (8) is fixedly connected to the moving block (5); a conductive rod (10) matching each conductive plug-in (3) is installed on the mounting plate (4), An adjustment structure is installed on the mounting plate (4), and the adjustment structure includes a mounting cavity (6) opened inside the mounting plate (4). The conductive rod (10) is slidably connected to the inside of the mounting cavity (6), and each of the conductive rods (10) passes through the inner wall of the mounting cavity (6) and extends to the outside of the mounting plate (4). One end of each conductive rod (10) located inside the mounting cavity (6) is fixedly connected to the adjustment plate (9), and each of the adjustment plates (9) is rotatably connected to an adjustment rod (13), and each of the adjustment rods (13) passes through the inner wall of the mounting cavity (6) and extends to the outside of the mounting plate (4). A fixed through groove (15) corresponding to the position of each adjustment rod (13) is opened on the inner wall of the mounting cavity (6).

2. The winding open-close coil structure of a magnetic particle detector according to claim 1, characterized in that: The conductive rod (10) is provided with a protective shell (11) on the outer side of the outer portion of the mounting plate (4). The protective shell (11) is fixedly connected to the mounting plate (4), and each protective shell (11) is made of insulating material.

3. The winding open-close coil structure of a magnetic particle flaw detector according to claim 1, characterized in that: A connecting spring (12) is sleeved on each of the conductive rods (10), and both ends of the connecting spring (12) are fixedly connected to the corresponding adjustment plate (9) and the inner wall of the installation cavity (6), respectively.

4. The winding open-close coil structure of a magnetic particle detector according to claim 1, characterized in that: A fixed block (14) is fixedly sleeved on the outer side of the adjusting rod (13), and the shape of the fixed block (14) matches the fixed through slot (15).

5. The winding open-close coil structure of a magnetic particle flaw detector according to claim 1, characterized in that: Each conductive rod (10) is connected to a power source via a wire.

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