A magnetic particle flaw detection device for special equipment detection

Abstract

The utility model provides a kind of magnetic particle flaw detection device for special equipment detection, it is related to magnetic particle flaw detection technical field, including the assembly arm that top is equipped with magnetic suspension liquid watering can and magnetic particle flaw detection module, annular groove is opened in the assembly arm and the side edge of assembly arm is equipped with several vertical grooves, which are distributed in annular array around the center axis of annular groove and are communicated with the inside of annular groove, the fixed ring and the lifting seat are distributed in the upper and lower positions in the annular groove, the upper surface of the fixed ring is fixedly installed with upper rack at the position of any vertical groove, the lifting ring is sleeved in the lifting seat, by setting fixed ring and lifting ring, corresponding inner clamp rod and outer clamp rod can be rotated and swung by using fixed ring and lifting ring independent lifting, and the inner clamp rod and outer clamp rod are used to clamp boiler feed inlet, and the position of assembly arm is fixed by using lifting seat lifting to realize several outer clamp rods to be close to inner clamp rod.

Description

Technical Field

[0001] This utility model relates to the field of magnetic particle testing technology, and in particular to a magnetic particle testing device for testing special equipment. Background Technology

[0002] Magnetic particle testing is a non-destructive testing technology that is widely used to detect surface and near-surface defects in ferromagnetic materials (such as iron and steel), such as cracks, pores, inclusions, and in the special equipment inspection industry.

[0003] Therefore, a special equipment inspection magnetic particle flaw detection device, with publication number CN221926220U, fixes a magnetic suspension sprayer and a magnetic particle flaw detection module to the bottom of a limiting plate. The assembly arm is inserted into the boiler through the boiler's feed inlet. Rotating the torsion wheel drives the threaded rod to rotate, which in turn drives the nut to rise, thereby driving the rotating arm to fold and lock into the top inner side of the boiler feed inlet. At the same time, the top plate completes the overall fixation of the assembly arm. When the nut rises, it drives the long arm to move, which in turn drives the connecting rod transmission to move the T-shaped plate. Through the four sets of T-shaped plates moving away from each other, the assembly arm is fixed at the center position of the boiler feed inlet. The cylinder is activated to drive the limiting plate and the magnetic suspension sprayer to move, spraying magnetic powder into the boiler's interior. Then, the magnetic particle flaw detection module inspects the inner wall of the boiler.

[0004] However, during the lifting and lowering of the nut, the corresponding rotating arm and T-shaped plate move synchronously. Therefore, due to differences in boiler size or errors in the assembly process, the T-shaped plate may be fixed before the rotating arm is fully locked inside the top of the boiler feed inlet. This situation may lead to unstable assembly, affecting the fixation and spraying effect of the magnetic suspension sprayer, and thus affecting the accuracy of magnetic particle inspection. Utility Model Content

[0005] The purpose of this invention is to solve the problems existing in the prior art by proposing a magnetic particle inspection device for special equipment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a magnetic particle inspection device for special equipment, comprising an assembly arm with a magnetic suspension sprayer and a magnetic particle inspection module mounted on its top, an annular groove being formed inside the assembly arm, and several vertical grooves arranged in a circular array around the central axis of the annular groove and communicating with the interior of the annular groove being formed on the side of the assembly arm, a fixed ring and a lifting seat being arranged vertically within the annular groove, an upper rack being fixedly installed on the upper surface of the fixed ring at any position in any vertical groove, a lifting ring being fitted inside the lifting seat, a lower rack being fixedly installed on the side of the lifting ring at any position in any vertical groove, an upper gear meshing with the upper rack and a lower gear meshing with the lower rack being provided in each of the vertical grooves, an inner clamping rod being movably installed on the tooth surface of the upper gear, an outer clamping rod being movably installed on the side of the lower gear, and an upper screw threaded through the fixed ring, a threaded rod threaded through the lifting seat and a lower screw threaded through the lifting ring being rotatably connected in the annular groove.

[0007] Preferably, the upper and lower racks are vertically arranged and slidably connected to the inner wall of the vertical groove.

[0008] Preferably, one end of the inner clamping rod is threaded to the tooth surface of the upper gear, and one end of the outer clamping rod is threaded to the tooth surface of the lower gear, with an abutting threaded ring threaded to the surface of the outer clamping rod.

[0009] Preferably, the upper lead screw passes through the lifting ring and the lifting seat.

[0010] Preferably, the top end of the lower lead screw is rotatably connected to the top edge of the lifting seat, and the bottom end of the lower lead screw is rotatably connected through the bottom edge of the lifting seat. A telescopic rod is fixedly installed at the bottom end of the lower lead screw, and the cylinder part of the telescopic rod is rotatably connected through the bottom of the annular groove.

[0011] Preferably, the top end of the threaded rod penetrates the surface of the fixed ring and is rotatably connected to the top of the annular groove, and the bottom end of the threaded rod is rotatably connected to the bottom of the annular groove.

[0012] Preferably, the upper lead screw, threaded rod, and telescopic rod are all fixedly installed with nuts at the ends located outside the annular groove.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, by setting a fixed ring and a lifting ring, the corresponding inner clamping rod and outer clamping rod can be rotated and swung by independently raising and lowering the fixed ring and the lifting ring. Furthermore, by raising and lowering the lifting seat, several outer clamping rods can be moved closer to the inner clamping rod, thereby clamping the boiler feed port with the inner clamping rod and fixing the position of the assembly arm.

[0015] 2. In this utility model, one end of the inner clamping rod is threaded to the tooth surface of the upper gear, and one end of the outer clamping rod is threaded to the tooth surface of the lower gear. The outer clamping rod surface is threaded with an abutting threaded ring, which makes it convenient for personnel to replace the inner clamping rod and the outer clamping rod of the corresponding length according to the radius of the boiler feed port. By rotating the abutting threaded ring to abut the inner wall of the boiler feed port, the assembly arm can be completely fixed in the boiler feed port. Attached Figure Description

[0016] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a magnetic particle flaw detection device for special equipment inspection;

[0017] Figure 2 This utility model proposes a magnetic particle inspection device for special equipment testing. Figure 1 A schematic diagram of the side view structure;

[0018] Figure 3 This utility model proposes a magnetic particle inspection device for special equipment testing. Figure 1 A schematic diagram of the structure viewed from below;

[0019] Figure 4 This utility model proposes a magnetic particle inspection device for special equipment testing. Figure 1 A cross-sectional structural diagram.

[0020] Legend: 1. Upper lead screw; 2. Lower gear; 3. Assembly arm; 4. Inner clamping rod; 5. Outer clamping rod; 6. Threaded ring; 7. Vertical groove; 8. Annular groove; 9. Nut; 10. Upper gear; 11. Upper rack; 12. Fixing ring; 13. Lower rack; 14. Lifting ring; 15. Lifting seat; 16. Telescopic rod; 17. Lower lead screw; 18. Threaded rod. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] like Figures 1-4As shown, a magnetic particle inspection device for special equipment includes an assembly arm 3 with a magnetic suspension sprayer and a magnetic particle inspection module installed at the top. An annular groove 8 is opened inside the assembly arm 3, and several vertical grooves 7 are arranged in a ring array around the central axis of the annular groove 8 and communicate with the inside of the annular groove 8 on the side of the assembly arm 3. A fixed ring 12 and a lifting seat 15 are arranged in a vertical position inside the annular groove 8. The fixed ring 12 and the lifting seat 15 can only slide along the height direction of the annular groove 8 and cannot rotate.

[0024] An upper rack 11 is fixedly installed on the upper surface of the fixed ring 12 at any position in the vertical groove 7. A lifting ring 14 is fitted inside the lifting seat 15. A lower rack 13 is fixedly installed on the side of the lifting ring 14 at any position in the vertical groove 7. The upper rack 11 and the lower rack 13 are vertically arranged and slidably connected to the inner wall of the vertical groove 7. An upper gear 10 that meshes with the upper rack 11 and a lower gear 2 that meshes with the lower rack 13 are provided in each vertical groove 7. In this design, the lower gear 2 is located in the vertical groove 7 and can rotate within the vertical groove 7. However, the lower gear 2 is rotatably installed on the side of the lifting seat 15, that is, the side of the lifting seat 15 extends outward into the vertical groove 7 and is rotatably connected to the lower gear 2, while the upper gear 10 is directly rotatably connected to the inner wall of the vertical groove 7. The gear 10 has an inner clamping rod 4 movably mounted on its tooth surface, and the lower gear 2 has an outer clamping rod 5 movably mounted on its side. In actual use, the fixed ring 12 is raised and lowered in the annular groove 8 to achieve synchronous raising and lowering of several upper racks 11 connected to it. This allows the corresponding meshing upper gear 10 to drive the inner clamping rod 4 to swing to a horizontal state and overlap on the inner wall of the boiler feed inlet. Similarly, the lifting ring 14 is raised and lowered in the lifting seat 15 to achieve synchronous raising and lowering of several lower racks 13 connected to its surface. This allows the corresponding meshing lower gear 2 to drive the outer clamping rod 5 to rotate to a horizontal state. Then, the lifting seat 15 is raised and lowered as a whole to move the leveled outer clamping rod 5 and clamp it to the outside of the boiler feed inlet, thus fixing the position of the assembly arm 3.

[0025] One end of the inner clamping rod 4 is threaded to the tooth surface of the upper gear 10, and one end of the outer clamping rod 5 is threaded to the tooth surface of the lower gear 2. The outer clamping rod 5 is also threaded with a contact threaded ring 6, which allows personnel to replace the inner clamping rod 4 and the outer clamping rod 5 of the corresponding length according to the radius of the boiler feed port. By rotating the contact threaded ring 6 to contact the inner wall of the boiler feed port, the assembly arm 3 can be completely fixed in the boiler feed port.

[0026] An upper threaded rod 1, threaded through a fixed ring 12, is rotatably connected within an annular groove 8. The upper threaded rod 1 passes through a lifting ring 14 and a lifting seat 15. A threaded rod 18, threaded through the lifting seat 15, passes through the surface of the fixed ring 12 and is rotatably connected to the top of the annular groove 8. The bottom end of the threaded rod 18 is rotatably connected to the bottom of the annular groove 8. A lower threaded rod 17, threaded through the lifting ring 14, is also present. The top end of the lower threaded rod 17 is rotatably connected to the top edge of the lifting seat 15, and the bottom end of the lower threaded rod 17 is rotatably connected to the bottom edge of the lifting seat 15. A telescopic rod 16 is fixedly installed at the bottom end of the lower threaded rod 17. The cylinder part of the telescopic rod 16 is rotatably connected to the bottom of the annular groove 8. Nuts 9 are fixedly installed on the upper screw 1, the threaded rod 18 and the telescopic rod 16 at the ends outside the annular groove 8. In actual use, the corresponding connected parts are rotated by rotating the nuts 9. For example, when the upper screw 1 rotates, the fixed ring 12 connected to it by the thread will rise and fall. When the telescopic rod 16 rotates, it will drive the lower screw 17 to rotate, which will drive the lifting ring 14 to rise and fall. When the threaded rod 18 rotates, it will drive the lifting seat 15 and the lifting ring 14 to rise and fall synchronously. At the same time, the corresponding telescopic rod 16 will passively extend and retract.

[0027] Working principle: During use, the inner clamping rod 4 and the outer clamping rod 5 are kept in the same position. Figure 1 As shown in the diagram, when the assembly arm 3 is placed into the boiler feed inlet, the inner clamping rod 4 is located inside the boiler. The upper screw 1 rotates to raise and lower the fixing ring 12. The fixing ring 12 moves up and down in the annular groove 8 to simultaneously raise and lower several upper racks 11 connected to it. This allows the corresponding meshing upper gear 10 to drive the inner clamping rod 4 to swing to a horizontal state and overlap on the inner wall of the boiler feed inlet. When the telescopic rod 16 rotates, it drives the lower screw 17 to rotate, which in turn drives the lifting ring 14 to rise and fall. The lifting ring 14 moves up and down within the lifting seat 15, thereby simultaneously raising and lowering several lower racks 13 connected to its surface. This allows the corresponding meshing lower gear 2 to drive the outer clamping rod 5 to rotate to a horizontal state. Then, the lifting seat 15 is raised and lowered as a whole to move the leveled outer clamping rod 5 and clamp it to the outside of the boiler feed inlet, thus fixing the position of the assembly arm 3. Then, the known and commonly used magnetic suspension spray bottle and magnetic particle inspection module set at the top of the assembly arm 3 are used to perform magnetic particle inspection.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A magnetic particle inspection device for special equipment, comprising an assembly arm (3) with a magnetic suspension sprayer and a magnetic particle inspection module mounted on its top, characterized in that: The assembly arm (3) has an annular groove (8) inside and several vertical grooves (7) arranged in a circular array around the central axis of the annular groove (8) and communicating with the interior of the annular groove (8) on the side of the assembly arm (3). A fixing ring (12) and a lifting seat (15) are arranged vertically inside the annular groove (8). An upper rack (11) is fixedly installed on the upper surface of the fixing ring (12) at any position of the vertical groove (7). A lifting ring (14) is fitted inside the lifting seat (15). The side of the lifting ring (14) is fixedly installed at any position of the vertical groove (7). A lower rack (13) is fixedly installed. Each of the vertical grooves (7) is provided with an upper gear (10) that meshes with the upper rack (11) and a lower gear (2) that meshes with the lower rack (13). An inner clamping rod (4) is movably installed on the tooth surface of the upper gear (10). An outer clamping rod (5) is movably installed on the side of the lower gear (2). An upper screw (1) that is threaded through the fixed ring (12), a threaded rod (18) that is threaded through the lifting seat (15), and a lower screw (17) that is threaded through the lifting ring (14) are rotatably connected in the annular groove (8).

2. The magnetic particle inspection device for special equipment inspection according to claim 1, characterized in that: The upper rack (11) and lower rack (13) are vertically arranged and slidably connected to the inner wall of the vertical groove (7).

3. The magnetic particle inspection device for special equipment inspection according to claim 1, characterized in that: One end of the inner clamping rod (4) is threaded to the tooth surface of the upper gear (10), and one end of the outer clamping rod (5) is threaded to the tooth surface of the lower gear (2), and the outer clamping rod (5) has a threaded contact ring (6) on its surface.

4. The magnetic particle inspection device for special equipment inspection according to claim 1, characterized in that: The upper lead screw (1) passes through the lifting ring (14) and the lifting seat (15).

5. The magnetic particle inspection device for special equipment inspection according to claim 1, characterized in that: The top end of the lower screw (17) is rotatably connected to the top edge of the lifting seat (15), and the bottom end of the lower screw (17) is rotatably connected to the bottom edge of the lifting seat (15). A telescopic rod (16) is fixedly installed at the bottom end of the lower screw (17), and the cylinder part of the telescopic rod (16) is rotatably connected to the bottom of the annular groove (8).

6. The magnetic particle inspection device for special equipment inspection according to claim 1, characterized in that: The top end of the threaded rod (18) passes through the surface of the fixing ring (12) and is rotatably connected to the top of the annular groove (8), and the bottom end of the threaded rod (18) is rotatably connected to the bottom of the annular groove (8).

7. The magnetic particle inspection device for special equipment inspection according to claim 1, characterized in that: The upper lead screw (1), threaded rod (18) and telescopic rod (16) are all fixedly installed with nuts (9) at the ends located outside the annular groove (8).

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