An array fluxgate arrangement

Abstract

The application relates to the technical field of residual magnetism detection, and particularly relates to an array type magnetic flux gate arrangement tool which is arranged in a cylindrical magnetic shielding cylinder and comprises a base, a guide rail and a residual magnetism detection component. The base is arranged in the magnetic shielding cylinder and is in contact with the inner wall of the magnetic shielding cylinder, is used for bearing the tool, has two contact parts which are in close contact with the inner wall of the magnetic shielding cylinder, and a main body part is arranged between the two contact parts. The guide rail is arranged on the base and is fixedly connected with the base. The residual magnetism detection component is arranged on the guide rail and cooperates with the guide rail, a plurality of magnetic flux gates are arranged on the residual magnetism detection component, and the residual magnetism of a material to be detected is detected. The application provides a magnetic flux gate arrangement tool which is specially arranged in the magnetic shielding cylinder, the position of a plurality of magnetic flux gates can be synchronously adjusted, the consistency of the positions of the magnetic flux gates before and after adjustment is ensured, and the residual magnetism gradient of the material to be detected can be conveniently detected.

Description

Technical Field

[0001] This invention relates to the field of residual magnetism detection technology, and more specifically to an array-type fluxgate arrangement fixture. Background Technology

[0002] In the residual magnetism testing of building materials, the materials to be tested can be placed in batches in a magnetically shielded environment for residual magnetism testing. When the quantity of materials to be tested is large, conveyor belt transportation can be used for rapid testing, which requires the use of a magnetic shielding device, such as a magnetic shielding cylinder.

[0003] For example, Chinese patent application CN120468741A discloses a device, method, and evaluation method for detecting the remanent magnetization of cement-based materials. The device includes a magnetic shielding cylinder, a fluxgate magnetometer, and a testing fixture. The magnetic shielding cylinder is used to shield the magnetic field and ensure the stability of the magnetic field in the testing environment. The fluxgate magnetometer includes a fluxgate probe and a digital fluxgate display. The fluxgate probe measures the vector value of the spatial magnetic induction intensity at its corresponding location, and the digital fluxgate display displays the measured value of the remanent magnetization measured by the fluxgate probe. The testing fixture is located inside the magnetic shielding cylinder and is used to place the sample to be tested and fix the fluxgate probe. The detection device disclosed in the above invention application uses a fluxgate magnetometer and a magnetic shielding cylinder to detect the remanent magnetization of cement-based materials. It can perform sampling tests on cement-based materials of different types, manufacturers, and batches, and provides a standardized testing process and method.

[0004] The existing technology lacks a magnetic fluxgate placement fixture for use with magnetic shielding cylinders. Directly placing the magnetic fluxgate on the inner wall of the magnetic shielding cylinder presents difficulties in placement and adjustment of the magnetic fluxgate position. Summary of the Invention

[0005] To address the problems associated with directly placing fluxgates within magnetic shielding cylinders, a fluxgate placement fixture is needed to work in conjunction with the magnetic shielding cylinder. This fixture would allow for easy adjustment of the fluxgate's placement position and effective testing of the material to be inspected.

[0006] To achieve the above-mentioned technical effects, the present invention proposes:

[0007] An array-type fluxgate arrangement fixture, disposed within a cylindrical magnetic shielding cylinder, includes:

[0008] The base has two contact portions that fit against the inner wall of the magnetic shielding cylinder, and a main body portion is provided between the two contact portions;

[0009] A guide rail is provided at the contact portions at both ends of the base, and the guide rail connects several of the bases;

[0010] The residual magnetism detection component includes a positioning component disposed on the guide rail, a crossbeam connected to the positioning component by a screw, and a plurality of fluxgates arranged on the crossbeam.

[0011] In this invention, the base serves as the overall support for the tooling and mates with the inner wall of the magnetic shielding cylinder. A guide rail connects several bases to form a whole. The residual magnetism detection component is equipped with several fluxgates, and the relative distance between the fluxgates and the conveyor belt of the material to be inspected is changed by adjusting screws. By placing the tooling inside the magnetic shielding cylinder and changing the position of the residual magnetism detection component on the guide rail, the magnetic shielding performance of the magnetic shielding cylinder and the residual magnetism of the material to be inspected can be detected.

[0012] The contact portion has an arc-shaped mating surface that mates with the inner wall of the magnetic shielding cylinder. The base is used to support the tooling. The arc-shaped mating surface of the contact portion is adapted to fit the inner wall of the magnetic shielding cylinder. The radius of curvature of the arc-shaped mating surface of the contact portion is equal to the radius of the inner wall of the magnetic shielding cylinder, which makes the base stable in bearing the load and avoids stress concentration that could damage the magnetic shielding cylinder and cause magnetic shielding failure.

[0013] Preferably, the guide rail includes: a first positioning part; a rack; and a second positioning part, with the positioning parts on both sides of the same base being arranged opposite to each other.

[0014] The positioning assembly includes: an I-beam column, rotatably connected to a gear via a flange and bearings, the gear meshing with the rack, and a screw fixedly threaded to the I-beam column; a roller bracket, with two roller brackets provided on the same end face of the I-beam column, the roller brackets rotatably connected to rollers; and a positioning guide post, with a positioning guide post fixedly connected to the side of any of the roller brackets, and the positioning guide post located on the opposite side of the gear.

[0015] Optionally, the guide rail includes: a support surface; a positioning strip, wherein the positioning strip is provided with a plurality of positioning holes, and the positioning holes on the guide rail on both sides of the same base are provided in a one-to-one correspondence.

[0016] The positioning component includes: a column having a positioning plate and a support portion abutting against the support surface, the screw being screwed and fixed to the column; and a positioning rod passing through the positioning plate and cooperating with the positioning hole to position the relative position of the positioning component and the guide rail.

[0017] The crossbeam includes: a sensor mounting slot, a plurality of sensor mounting slots being symmetrically arranged along the length of the crossbeam, the sensor mounting slots being square; and a sensor fixing assembly, which passes through the sensor mounting slots and is fixedly connected to the crossbeam by bolts, the sensor fixing assembly having a sensor mounting cavity.

[0018] The sensor fixing assembly includes a first fixing assembly and a second fixing assembly. The first fixing assembly includes a square outer shell and a rectangular fixing plate, which has a cylindrical sensor mounting cavity inside and a recessed groove at the end. The rectangular fixing plate is bolted to the crossbeam. The second fixing assembly includes an L-shaped molding plate and a U-shaped molding plate. The L-shaped molding plate and the U-shaped molding plate cooperate to form the square sensor mounting cavity. It also includes two L-shaped fixing plates. The outer surfaces of the L-shaped molding plate and the U-shaped molding plate are provided with screw holes and are bolted to the crossbeam through the L-shaped fixing plates.

[0019] The residual magnetism detection assembly includes a first detection assembly and a second detection assembly, which are symmetrically arranged along the midpoint of the axis of the magnetic shielding cylinder. As one arrangement of the residual magnetism detection assembly of the present invention, when two sets of residual magnetism detection assemblies are configured, the midpoints of the axes of the magnetic shielding cylinders of the first and second detection assemblies are symmetrically arranged, and the heights of the crossbeams of the first and second detection assemblies are adjusted respectively, thereby enabling the detection of the residual magnetism gradient of the material to be inspected.

[0020] It also includes a ball screw assembly, comprising: a synchronous screw with oppositely oriented threads symmetrically arranged along its length; a screw base symmetrically arranged at both ends of the guide rail, the synchronous screw passing through the screw base and rotatably connected to the screw base; a handwheel fixedly connected to one end of the synchronous screw; and screw nuts respectively provided on the crossbeam of the first detection component and the crossbeam of the second detection component, which are threadedly connected to the synchronous screw.

[0021] The beneficial effects of this invention are:

[0022] 1. The base is stably set inside the magnetic shielding cylinder, ensuring good contact with the cylinder and avoiding stress concentration at the contact surface between the base and the inner wall of the cylinder, thus guaranteeing the magnetic shielding performance of the cylinder and the detection accuracy of the tooling; 2. The residual magnetism detection component is accurately positioned with the guide rail, allowing for precise position adjustment along the axial direction of the magnetic shielding cylinder; 3. The crossbeam synchronously adjusts multiple fluxgates, ensuring consistency in position between the fluxgates before and after adjustment; 4. By setting the number of residual magnetism detection components and guide rails, the residual magnetism gradient of the material under test can be detected. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention in Embodiment 1.

[0024] Figure 2 This is a schematic diagram of the base structure.

[0025] Figure 3 This is a schematic diagram of the positioning component.

[0026] Figure 4This is a structural schematic diagram of the crossbeam.

[0027] Figure 5 This is a schematic diagram of the guide rail structure.

[0028] Figure 6 This is a schematic diagram of the structure of the first fixed component.

[0029] Figure 7 This is a schematic diagram of the second fixed component.

[0030] Figure 8 This is a schematic diagram of the array-type fluxgate arrangement fixture and the magnetic shielding cylinder in Embodiment 1.

[0031] Figure 9 This is a schematic diagram of the overall structure of the present invention in Embodiment 2.

[0032] Figure 10 This is a schematic diagram of the array-type fluxgate arrangement fixture and the magnetic shielding cylinder in Embodiment 2.

[0033] Figure 11 This is a left view of the present invention in Embodiment 3.

[0034] Figure 12 This is a top view of the present invention in Embodiment 3.

[0035] Figure 13 This is a front view of the present invention in Embodiment 3.

[0036] Figure 14 This is a schematic diagram of the structure of the present invention in Embodiment 4.

[0037] Figure 15 for Figure 14 The left view.

[0038] Figure 16 for Figure 15 Sectional view at BB.

[0039] In the picture:

[0040] 100. Base; 200. Guide rail; 300. Residual magnetism detection assembly; 400. Fluxgate; 500. Ball screw assembly; 600. Magnetic shielding cylinder;

[0041] 101. Contact part; 102. Main part;

[0042] 201. Rack; 202. First positioning part; 203. Second positioning part; 204. Positioning bar; 205. Positioning hole; 206. Support surface;

[0043] 301. Positioning assembly; 302. Crossbeam; 303. Gear; 304. I-beam column; 305. Roller bracket; 306. Positioning guide post; 307. Flange; 308. Bearing; 309. Washer; 310. Roller; 311. Screw; 312. Screw connecting hole; 313. Nut; 314. Sensor mounting slot; 315. Sensor fixing assembly; 316. First fixing assembly; 317. Second fixing assembly; 318. Square housing; 319. Rectangular fixing plate; 320. L-shaped molding plate; 321. U-shaped molding plate; 322. L-shaped fixing plate; 323. Pin; 324. Column; 325. Positioning plate; 326. Positioning rod; 327. Support part;

[0044] 330. First detection component; 340. Second detection component;

[0045] 401. First fluxgate; 402. Second fluxgate;

[0046] 501. Synchronous lead screw; 502. Lead screw base; 503. Handwheel. Detailed Implementation

[0047] The beneficial effects of the present invention will be described in detail below through specific embodiments.

[0048] Example 1

[0049] In this embodiment, please refer to the appendix. Figure 1 and Figure 8 An array-type fluxgate arrangement fixture is set inside a cylindrical magnetic shielding cylinder 600. The magnetic shielding cylinder 600 is horizontally arranged along its central axis and a support is erected at the bottom. The material conveyor belt to be inspected passes through the inside of the magnetic shielding cylinder 600. The material conveyor belt to be inspected cooperates with the array-type fluxgate arrangement fixture in this embodiment to perform residual magnetism detection on the material to be inspected.

[0050] In this embodiment, please refer to the appendix. Figure 1 The array-type fluxgate arrangement fixture includes a base 100, a guide rail 200, and a residual magnetism detection component 300, which is mounted on the guide rail 200. A magnetic shielding cylinder 600 is used to shield external magnetic field interference and improve the detection accuracy of the residual magnetism detection component 300; the two are used together.

[0051] For details, please refer to the appendix. Figure 2 The base 100 has two contact portions 101 that fit against the inner wall of the magnetic shielding cylinder 600, with the main body 102 located between the two contact portions 101. In this embodiment, the main body 102 is designed with a hollow structure in the middle, reducing the overall weight of the base 100 while ensuring its load-bearing capacity. The top surface of the contact portion 101 is parallel to the top surface of the main body 102, and a screw hole is provided on the top surface of the contact portion 101 for connecting the guide rail 200 by bolts.

[0052] Guide rails 200 are located at the contact portions 101 at both ends of the base 100 for mounting the residual magnetism detection assembly 300. Please refer to the appendix. Figure 5 The guide rail 200 is equipped with a rack 201 to cooperate with the residual magnetism detection component 300 to improve positioning accuracy. The guide rail 200 connects several bases 100, and the length of the guide rail 200 is set according to the axial length of the magnetic shielding cylinder 600.

[0053] The residual magnetism detection component 300 is mounted on the guide rail 200, and includes two positioning components 301 respectively mounted on the guide rail 200 on both sides of the base 100. Please refer to the attached document. Figure 3 The positioning component 301 has a gear 303 that meshes with the rack 201. The gear 303 cooperates with the rack 201 to improve the positional accuracy of the residual magnetism detection component 300. The residual magnetism detection component 300 also includes a crossbeam 302 connected to the positioning component 301 via a screw 311. Please refer to the attached diagram. Figure 4 A number of fluxgates 400 are arranged on the crossbeam 302, which is used to set the fluxgates 400. The residual magnetism detection component 300 is used to adjust the position of the fluxgates 400 in the magnetic shielding cylinder 600.

[0054] In this embodiment, please refer to the appendix. Figure 2 The contact portion 101 has an arc-shaped mating surface that mates with the inner wall of the magnetic shielding cylinder 600. The base 100 is disposed within the magnetic shielding cylinder 600, and the main body 102 is horizontally positioned. The contact portions 101 at both ends of the main body 102 respectively fit against the inner wall of the magnetic shielding cylinder 600 through their arc-shaped mating surfaces. The arc-shaped mating surfaces increase the contact area between the base 100 and the shielding cylinder, distributing the overall weight of the fixture and preventing the weight of the fixture and the conveyor belt carrying the material to be inspected from concentrating at a single location on the magnetic shielding cylinder 600, thus avoiding damage or destruction to the magnetic shielding cylinder 600. During the installation of the fixture and the magnetic shielding cylinder 600, the arc-shaped mating surfaces facilitate the horizontal adjustment of the main body 102. The good contact between the arc-shaped mating surfaces and the inner wall of the magnetic shielding cylinder prevents stress concentration between the base 100 and the inner wall of the magnetic shielding cylinder 600, ensuring the magnetic shielding effect of the magnetic shielding cylinder 600 and the inspection accuracy of the fixture.

[0055] In this embodiment, please refer to the appendix. Figure 5The guide rail 200 has a first positioning part 202 and a second positioning part 203, with the second positioning part 203 positioned opposite to each other on both sides of the base 100. The first positioning part 202 is located on the top surface of the guide rail 200. The second positioning part 203 is located on the side of the guide rail 200, and the second positioning parts 203 positioned opposite to each other on both sides of the base 100 are used to guide the movement direction of the positioning component 301 and prevent the positioning component 301 from sliding and deviating on the guide rail 200. The guide rail 200 is provided with a recess for placing and connecting the rack 201. This recess is located on the side of the first positioning part 202 away from the second positioning part 203, and the rack 201 is fixedly connected to this recess by bolts.

[0056] In this embodiment, please refer to the appendix. Figure 3 The positioning component 301 is mounted on the guide rail 200 and has a gear 303 that meshes with the rack 201. The positioning component 301 includes an I-beam column 304, a roller bracket 305, and a positioning guide post 306. The gear 303 is rotatably connected to the I-beam column 304 via a flange 307 and a bearing 308. Two roller brackets 305 are provided on the same end face of the I-beam column 304, and the roller brackets 305 are rotatably connected to rollers 310. A positioning guide post 306 is fixedly connected to the side of any roller bracket 305, and the positioning guide post 306 is located on the side of the I-beam column 304 opposite to the gear 303.

[0057] Specifically, the I-beam structure of the I-beam column 304 facilitates the connection between the roller bracket 305 and the screw 311. One end of the I-beam column 304 has a through hole for bolting two roller brackets 305. Each roller bracket 305 is rotatably connected to the roller 310 via a pin 323 and a washer 309. The end of the I-beam column 304 used to connect the roller brackets 305 has a disc-shaped flange 307 connecting surface, which is bolted to a flange 307 with a rotating shaft. The rotating shaft of the flange 307 passes through a bearing 308 and a washer 309, and a gear 303 is fitted onto it, completing the rotatable connection between the gear 303 and the I-beam column 304. The side of the roller bracket 305 facing away from the gear 303 is bolted to a positioning guide post 306, which is rotatably connected to the bearing 308. The positioning guide posts 306 on both sides of the residual magnetism detection component 300 simultaneously cooperate with the second positioning parts 203 of the guide rails 200 on both sides. The bearings 308 roll with the second positioning parts 203 to form a four-point positioning, maintaining the direction of movement of the residual magnetism detection component 300 on the guide rails 200 and preventing the residual magnetism detection component 300 from accidentally dislodging from the side of the guide rails 200. The cooperation between the gear 303 and the rack 201 can restrict the movement of the residual magnetism detection component 300 on the guide rails 200, giving the residual magnetism detection component 300 a certain damping feel when moving, facilitating the adjustment of the position of the residual magnetism detection component 300 and improving the adjustment accuracy.

[0058] In this embodiment, please refer to the appendix. Figure 4The crossbeam 302 has screw connection holes 312 at both ends and is fixedly connected to screw rods 311 by nuts 313. Screw rods 311 are screwed to I-beam columns 304. The other end of the I-beam column 304, connected to the roller bracket 305, has two symmetrical screw holes, each screwed with a screw rod 311. The other end of the screw rod 311 is fixedly connected to the crossbeam 302 by nuts 313. The crossbeam 302 has two screw connection holes 312 at each end for threading the screw rods 311. The screw rods 311 and nuts 313 work together to adjust the height of the crossbeam 302, changing the distance between the magnetic fluxgate 400 and the conveyor belt carrying the material to be inspected.

[0059] In this embodiment, the crossbeam 302 includes sensor mounting slots 314 and sensor fixing components 315. Several sensor mounting slots 314 are symmetrically arranged along the length of the crossbeam 302, and each slot is square. The portion of the crossbeam 302 used for the sensor mounting slots 314 is machined with a countersunk groove, which, while ensuring the strength of the crossbeam 302, reduces the size of the sensor fixing components 315 that need to be inserted into the sensor mounting slots 314. The sensor fixing components 315 are inserted into the sensor mounting slots 314 and fixedly connected to the crossbeam 302 with bolts. The sensor fixing components 315 have sensor mounting cavities. Specifically, the surface of the crossbeam 302 has symmetrically arranged sensor mounting slots 314 along its length, and sensor fixing components 315 are inserted therethrough for housing the fluxgate magnetometer 400. The number of sensor mounting slots 314 is usually set to an even number. The two ends of the crossbeam 302 are machined to be thinner from the bottom to the top. This, combined with the groove, makes the center of gravity of the crossbeam 302 on the residual magnetism detection component 300 lower, while reducing its thickness. Without changing the length of the screw 311, the height adjustment range of the crossbeam 302 on the screw 311 can be increased.

[0060] In this embodiment, please refer to the appendix. Figure 6 and Figure 7 The sensor fixing assembly 315 includes a first fixing assembly 316 and a second fixing assembly 317. The first fixing assembly 316 includes a square outer shell 318 and a rectangular fixing plate 319, which has a cylindrical sensor mounting cavity inside and a recessed groove at one end. The rectangular fixing plate 319 is bolted to the crossbeam 302. The second fixing assembly 317 includes an L-shaped molded plate 320 and a U-shaped molded plate 321, which cooperate to form a square sensor mounting cavity. The second fixing assembly 317 also includes two L-shaped fixing plates 322. The outer surfaces of the L-shaped molded plate 320 and the U-shaped molded plate 321 have screw holes, and the L-shaped fixing plates 322 are bolted to the crossbeam 302 for fixation.

[0061] Specifically, this embodiment includes two types of fluxgates 400 with different parameters and shapes: a first fluxgate 401 with a cylindrical shape and a second fluxgate 402 with a square column shape. The sensor mounting cavity of the first fixing component 316 is configured as cylindrical, and the first fluxgate 401 can be directly mounted in the first fixing component 316. The second fluxgate 402 is fixed by the cooperation of an L-shaped molding plate 320 and a U-shaped molding plate 321, and then fixed to the sensor mounting slot 314 of the crossbeam 302 by two L-shaped fixing plates 322 with bolts. Both the first fluxgate 401 and the second fluxgate 402 face the main body 102.

[0062] The installation and use process of this embodiment is as follows: This embodiment has two bases 100, which are connected as a whole by guide rails 200 and placed in the axial center position inside the magnetic shielding cylinder 600. The main body 102 is adjusted to be in a horizontal state. The residual magnetism detection component 300 is set on the guide rail 200, ensuring that the rollers 310 and positioning guide posts 306 of the positioning components 301 on both sides are in good contact with the first positioning part 202 and the second positioning part 203 respectively, and the gears 303 on both sides are engaged with the rack 201 respectively. The crossbeam 302 is equipped with eight sets of magnetic fluxgates 400. Two sets of square columnar magnetic fluxgates 400 are set near the two ends of the crossbeam 302 and are fixed to the crossbeam 302 by the second fixing component 317. The four sets in the middle are set as cylindrical magnetic fluxgates 400 and are fixed to the crossbeam 302 by the first fixing component 316. The screws 311 and nuts 313 at both ends of the crossbeam 302 are adjusted to make the crossbeam 302 basically horizontal. The wiring harnesses of each fluxgate 400 are concentrated on one side of the guide rail 200 and led out from inside the magnetic shielding cylinder 600. The conveyor belt of the material to be inspected passes through the magnetic shielding cylinder and is erected between the main body 102 and the crossbeam 302. Before performing residual magnetism testing on the material to be inspected, the residual magnetism detection component 300 is moved to the extreme positions at both ends of the guide rail 200 to test the magnetic shielding effect at both ends of the magnetic shielding cylinder 600. After completion, the residual magnetism detection component 300 is moved to the middle position of the guide rail 200 to minimize external magnetic interference, and the conveyor belt of the material to be inspected is run to test the residual magnetism of the material to be inspected.

[0063] Adjusting the connection positions between the two ends of the crossbeam 302 and the screw 311, and raising or lowering the relative distance between the crossbeam 302 and the conveyor belt, allows for the detection of the residual magnetic gradient of the material under test. It is important to note that after adjusting the position of the crossbeam 302, it must be kept basically horizontal.

[0064] The array-type fluxgate arrangement fixture in this embodiment can work with the magnetic shielding cylinder to detect the residual magnetism of the material to be inspected inside. The distance between the fluxgate and the conveyor belt can be adjusted according to actual testing requirements, resulting in high detection accuracy. The guide rails allow for precise adjustment of the axial position of the residual magnetism detection component inside the magnetic shielding cylinder, enabling the detection of the magnetic shielding performance of the cylinder or the residual magnetism of the material to be inspected.

[0065] Example 2

[0066] This embodiment further specifies the array-type fluxgate arrangement fixture based on Embodiment 1.

[0067] In this embodiment, please refer to the appendix. Figure 9 and Figure 10 The residual magnetism detection component 300 includes a first detection component 330 and a second detection component 340, which are symmetrically arranged along the midpoint of the axis of the magnetic shielding cylinder 600. In this embodiment, two sets of residual magnetism detection components 300 are provided, and two sets of guide rails 200 are correspondingly provided. The two sets of guide rails 200 are connected to each other through the same base 100 to form a whole.

[0068] The magnetic shielding performance of the magnetic shielding cylinder 600 gradually increases towards its internal center. The axial dimension of the magnetic shielding cylinder 600 is positively correlated with its magnetic shielding performance; the longer the magnetic shielding cylinder 600, the better the magnetic shielding performance at its internal center. When the axial dimension of the magnetic shielding cylinder 600 is long, only one set of magnetic shielding detection components can be installed inside it, making adjustment inconvenient. When testing the magnetic shielding effect at both ends of the magnetic shielding cylinder 600, the magnetic shielding detection components need to be moved sequentially to both ends of the magnetic shielding cylinder 600, which is difficult to operate due to the limitations of the axial dimension of the magnetic shielding cylinder 600.

[0069] To further optimize the magnetic shielding and residual magnetism detection effects, this embodiment is applicable to magnetic shielding cylinders 600 with longer axial dimensions.

[0070] Specifically, in this embodiment, the base 100 includes three bases 100, which are equidistant from each other. The total length is less than the internal axial dimension of the magnetic shielding cylinder 600. The two end bases 100 are connected to the middle base 100 by guide rails 200 to form a whole, forming two sets of guide rails 200 that cooperate with the first detection component 330 and the second detection component 340 respectively, and the two sets of guide rails 200 have the same length.

[0071] The installation and use process of this embodiment is as follows: Three bases 100 are equidistantly arranged and connected as a whole by two sets of guide rails 200. They are placed axially centered inside the magnetic shielding cylinder 600, and the main body 102 is adjusted to be horizontal. The first detection component 330 and the second detection component 340 are respectively placed on the two sets of guide rails 200, ensuring that the rollers 310 and positioning guide posts 306 of the positioning components 301 on both sides of each set of residual magnetism detection components 300 are in good contact with the first positioning part 202 and the second positioning part 203, respectively, and that the gears 303 on both sides mesh with the rack 201. The screws 311 and nuts 313 at both ends of the crossbeam 302 are adjusted to make the crossbeam 302 basically horizontal. The wire harnesses of each fluxgate 400 are concentrated on one side of the guide rail 200 and led out from inside the magnetic shielding cylinder 600. The conveyor belt for the material to be inspected is installed on the main body 102. Before performing residual magnetism testing on the material under inspection, the first detection component 330 and the second detection component 340 are moved to their respective extreme positions at both ends of the guide rail 200 to test the magnetic shielding effect at both ends of the magnetic shielding cylinder 600. After completion, the two sets of residual magnetism detection components 300 are moved to positions close to the middle of the magnetic shielding cylinder 600, ensuring that the two sets of residual magnetism detection components 300 are symmetrically arranged along the axial direction of the magnetic shielding cylinder 600 to reduce external magnetic interference. The conveyor belt for the material under inspection is then run to test the residual magnetism of the material under inspection.

[0072] When detecting the remanent magnetic gradient of the material under test, the crossbeams 302 of the first detection component 330 and the second detection component 340 are set to different heights. The first detection component 330 and the second detection component 340 are respectively positioned on their respective guide rails 200 near the center of the magnetic shielding cylinder 600. Simultaneously, the first detection component 330 and the second detection component 340 are symmetrically arranged along the axial direction of the magnetic shielding cylinder 600. The magnetic shielding cylinder 600 experiences increasing external magnetic field interference from its internal center towards both ends. Therefore, the remanent magnetic detection of the material under test should be performed as close to the internal center of the magnetic shielding cylinder 600 as possible. Accordingly, when detecting the remanent magnetic gradient of the material under test, the two sets of remanent magnetic detection components 300 need to be symmetrically arranged along the axial direction of the magnetic shielding cylinder 600 and as close as possible to the center of the magnetic shielding cylinder 600.

[0073] The array-type fluxgate arrangement fixture in this embodiment can simultaneously detect the magnetic shielding performance at both ends of the magnetic shielding cylinder, reducing the moving distance of a single residual magnetism detection component. Furthermore, the beam heights of the first and second detection components are set separately to facilitate the detection of the residual magnetism gradient of the material under test. It is important to note that the first and second detection components in this embodiment need to be symmetrically arranged along the cylinder axis within the magnetic shielding cylinder. When performing residual magnetism detection on the material under test, the first and second detection components are positioned near the midpoint of the magnetic shielding cylinder's axis.

[0074] Example 3

[0075] This embodiment further specifies the array-type fluxgate arrangement fixture based on embodiment two.

[0076] In this embodiment, please refer to the appendix. Figure 11 , Figure 12 and Figure 13 The array-type fluxgate arrangement fixture also includes a ball screw assembly 500, which includes a synchronous screw 501, a screw base 502, a screw nut, and a handwheel 503. The synchronous screw 501 has symmetrically arranged threads in opposite directions along its length. The screw base 502 is symmetrically arranged at both ends of the guide rail 200, and the synchronous screw 501 passes through and is rotatably connected to the screw base 502. A screw nut is provided on the crossbeam 302 of the first detection component 330 and the crossbeam 302 of the second detection component 340, and the two screw nuts are threadedly connected to the synchronous screw 501. The handwheel 503 is fixedly connected to one end of the synchronous screw 501.

[0077] Specifically, in this embodiment, the lead screw base 502 is U-shaped and includes two units, which are bolted to the guide rails 200 at both ends of the tooling assembly. The lead screw base 502 spans the conveyor belt of the material to be inspected, has a fixed height, and has a through hole in the middle position with a bearing 308 installed. The synchronous lead screw 501 has threads along its surface, including threads with opposite directions of rotation arranged symmetrically at both ends along its axial direction. A through hole is provided in the middle position of the crossbeam 302 of the first detection component 330 and the second detection component 340 along its width direction, and a lead screw nut is inserted through it. The lead screw nuts of the first detection component 330 and the second detection component 340 have opposite directions of rotation and are threadedly connected to the synchronous lead screw 501. When the synchronous lead screw 501 rotates in the same direction around its axial direction, the first detection component 330 and the second detection component 340 move closer to each other; when they rotate in opposite directions, the first detection component 330 and the second detection component 340 move further apart. Synchronous lead screw 501 is inserted through the first detection component 330, the second detection component 340 and the lead screw base 502 at both ends of the tooling. One end of the lead screw is fixed to a handwheel 503, and the distance between the first detection component 330 and the second detection component 340 can be adjusted by cranking the handwheel 503.

[0078] In this embodiment, the synchronous lead screw and lead screw nut adopt a ball screw connection, which has high transmission efficiency and precision. Ball screws are well-known transmission components and will not be described in detail here.

[0079] In this embodiment, when the tooling is in use, the distance between the two sets of residual magnetism detection components can be adjusted by the handwheel located at one end of the magnetic shielding cylinder. Rotating the handwheel forward or backward will cause the two sets of residual magnetism detection components to move closer to or further away from the center position inside the magnetic shielding cylinder, ensuring that the two sets of residual magnetism detection components are in symmetrical positions inside the magnetic shielding cylinder, thus reducing the workload of moving a single set of residual magnetism detection components individually.

[0080] Example 4

[0081] This embodiment, based on Embodiment 1, provides another positioning method for the positioning component 301 and the guide rail 200. For details, please refer to the appendix. Figures 14 to 16 The guide rail 200 includes a support surface 206 and a positioning strip 204. The positioning strip 204 is fixedly connected to the guide rail 200 by bolts. The positioning strip 204 is provided with a plurality of positioning holes 205, and the spacing between two adjacent positioning holes 205 on the same positioning strip 204 can be set according to actual needs. In this embodiment, the positioning holes 205 are screw holes. The top surface of the guide rail 200 is divided into two support surfaces 206 by the positioning strip 204 for sliding engagement of the positioning assembly 301. It should be noted that the positioning holes 205 of the guide rails 200 on both sides of the base 100 need to be correspondingly set.

[0082] In this embodiment, the positioning component 301 includes a column 324 with two support portions 327. The two support portions 327 are slidably engaged with the support surfaces 206 on both sides of the positioning strip 204, and simultaneously abut against and slidably engage with the two sides of the positioning strip 204, ensuring that the positioning component 301 always moves along the positioning strip 204 and preventing deviation in the direction of movement. The column 324 also has a positioning plate 325 with a screw hole on its end face. The positioning component 301 further includes a positioning rod 326. In this embodiment, the positioning rod 326 is a hand-tightening bolt, screwed into the screw hole on the end face of the positioning plate 325. The end of the positioning rod 326 can be screwed into the positioning hole 205 to fix the relative position of the positioning component 301 and the guide rail 200.

[0083] In this embodiment, the positioning method of the positioning component 301 and the guide rail 200, when used in actual application, such as in the tooling of Embodiment 1, involves loosening the positioning rods 326 of the two positioning components 301 to move the residual magnetism detection component 300, allowing it to slide along the positioning strip 204 on the guide rail 200. After the residual magnetism detection component 300 moves to the preset position, the positioning rods 326 on both sides are screwed into the corresponding positioning holes 205 to complete the positioning. The same principle applies to the tooling used in Embodiment 2. It should be noted that in the tooling used in Embodiment 2, the positioning holes 205 on the guide rails 200 where the two sets of residual magnetism detection components 300 are located need to be symmetrically arranged.

[0084] In this embodiment, the positioning component 301 and the guide rail 200 are positioned by relying on the fixed spacing between the positioning holes 205 and the threaded connection between the positioning holes 205 and the positioning rod 326. This allows for precise position adjustment of the residual magnetism detection component 300 between different positioning holes 205. The support part 327 slides with the support surface 206 and, together with the positioning strip 204, provides guidance during the adjustment process, preventing the residual magnetism detection component 300 from shifting during movement or accidentally slipping off the guide rail 200.

Claims

1. An array fluxgate arrangement tooling disposed in a cylindrical magnetic shield canister (600) characterized by, The utility model relates to a residual magnetism detection device, including: The base (100) has two contact parts (101) that are attached to the inner wall of the magnetic shielding cylinder (600), and a main body part (102) is provided between the two contact parts (101); The guide rail (200) is arranged at the contact part (101) of the two ends of the base (100), and the guide rail (200) connects a plurality of bases (100); The residual magnetism detection assembly (300) includes a positioning assembly (301) arranged on the guide rail (200), a crossbeam (302) connected to the positioning assembly (301) through a screw rod (311), and a plurality of magnetic flux gates arranged on the crossbeam (302); The material to be detected is conveyed through the magnetic shielding cylinder (600) and is arranged between the main body part (102) and the crossbeam (302); The material to be detected is conveyed through the magnetic shielding cylinder (600) and is arranged between the main body part (102) and the crossbeam (302); The guide rail (200) includes a first positioning part (202) and a rack (201), the positioning assembly (301) is provided with a gear (303) and a roller (310), the gear (303) is engaged with the rack (201), and the roller (310) is slidingly fitted with the first positioning part (202).

2. An array fluxgate arrangement according to claim 1, wherein, The contact part has a circular arc matching surface matched with the inner wall of the magnetic shielding cylinder.

3. An array fluxgate arrangement according to claim 1, wherein, The guide rail (200) further includes a second positioning part (203), and the second positioning parts (203) on the two sides of the same base (100) are oppositely arranged.

4. An array fluxgate arrangement according to claim 3, wherein, The positioning assembly (301) includes: The I-shaped column (304) is rotatably connected to the gear (303) through a flange and a bearing, and the screw rod (311) is screw-connected and fixed with the I-shaped column (304); The I-shaped column (304) has two roller supports (305) arranged on the same end surface, and the roller supports (305) are rotatably connected with the roller (310); The positioning guide column (306) is fixedly connected to the side surface of any roller support (305), and the positioning guide column (306) is located on the opposite side surface of the gear (303).

5. An array fluxgate arrangement according to any one of claims 1 to 4, wherein, The crossbeam (302) includes: The sensor setting groove (314) is symmetrically arranged along the length direction of the crossbeam (302), and the sensor setting groove (314) is square; The sensor fixing assembly (315) is arranged in the sensor setting groove (314) and is fixedly connected with the crossbeam (302) through bolts, and the sensor fixing assembly (315) has a sensor setting cavity.

6. An array fluxgate arrangement according to claim 5, wherein, The sensor fixing assembly (315) includes a first fixing assembly (316) and a second fixing assembly (317); The first fixing assembly (316) includes a square shell (318) and a rectangular fixing plate (319), which has a cylindrical sensor setting cavity inside, and the end part is provided with a groove, and the rectangular fixing plate (319) is screw-connected with the crossbeam (302) through bolts; The second fixing assembly (317) comprises an L-shaped forming plate (320) and a U-shaped forming plate (321), the L-shaped forming plate (320) and the U-shaped forming plate (321) cooperate to form a square sensor setting cavity, and further comprises two L-shaped fixing plates (322), screw holes are arranged on the outer surfaces of the L-shaped forming plate (320) and the U-shaped forming plate (321), and the L-shaped fixing plates (322) are screwed and fixed with the cross beam (302).

7. An array fluxgate arrangement as claimed in claim 4, wherein, The residual magnetism detection assembly comprises a first detection assembly (330) and a second detection assembly (340), and the first detection assembly (330) and the second detection assembly (340) are symmetrically arranged along the midpoint of the axis of the magnetic shielding cylinder (600).

8. An array fluxgate arrangement according to claim 7, wherein, Further comprising a ball screw assembly (500), comprising: A synchronous screw (501) is provided with threads in opposite directions symmetrically along the length of the synchronous screw (501); A screw base (502) is symmetrically arranged at both ends of the guide rail (200), and the synchronous screw (501) is arranged in the screw base (502) and rotationally connected with the screw base (502); A hand wheel (503) is fixedly connected to one end of the synchronous screw (501); The cross beam (302) of the first detection assembly (330) and the cross beam (302) of the second detection assembly (340) are respectively provided with screw nuts and are respectively threadedly connected with the synchronous screw (501).

9. An array fluxgate arrangement disposed in a cylindrical magnetic shield canister (600), characterized by, Comprising: A base (100) has two contact parts (101) that are attached to the inner wall of the magnetic shielding cylinder (600), and a main body part (102) is arranged between the two contact parts (101); A guide rail (200) is arranged at the contact parts (101) at both ends of the base (100), and the guide rail (200) connects a plurality of bases (100); A residual magnetism detection assembly (300) comprises a positioning assembly (301) arranged on the guide rail (200), a cross beam (302) connected with the positioning assembly (301) through a screw rod (311), and a plurality of fluxgates arranged on the cross beam (302); A material conveying belt to be detected passes through the magnetic shielding cylinder (600) and is arranged between the main body part (102) and the cross beam (302); The guide rail (200) comprises a support surface (206) and a positioning strip (204), the positioning strip (204) is provided with a plurality of positioning holes (205), the positioning assembly (301) comprises a stand column (324) and a positioning rod (326), the stand column (324) is slidingly fitted with the support surface (206), the stand column (324) is provided with a positioning plate (325), the positioning rod (326) is arranged in the positioning plate (325) and cooperates with the positioning holes (205) to position the relative positions of the positioning assembly (301) and the guide rail (200).

10. An array fluxgate arrangement according to claim 9, wherein, The positioning holes (205) on the guide rails (200) on both sides of the base (100) are arranged one by one in correspondence; the stand column (324) further comprises a supporting part (327) abutting against the supporting surface (206), and the screw rod (311) is screw-fixed with the stand column (324).

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