Nondestructive bearing detection device based on magnetic powder detection

Abstract

The utility model discloses a bearing nondestructive testing device based on magnetic particle testing, which comprises an annular guide rail, an electromagnet, an illuminating lamp and a camera arranged at the bottom of the guide rail, a moving groove arranged at the bottom end of the guide rail, a moving seat arranged in the moving groove, a lifting column fixedly connected to the bottom end of the moving seat, a clamping shell fixedly connected to the bottom end of the lifting column, and an outer rod arranged inside the clamping shell. The surface of the guide rail is fixedly connected with a fixing frame, the bottom end of the fixing frame is fixedly connected with a detection outer cylinder, a detection inner cylinder is arranged in the detection outer cylinder, and the top end of the detection inner cylinder is fixedly connected with an arc-shaped spraying pipe. The electromagnet, the detection outer cylinder and the camera are connected through the guide rail, the movable seat moves at the bottom end of the guide rail, and the height of the bearing is adjusted in cooperation with the lifting column, so that the steps of bearing magnetization, magnetic powder spraying, detection and the like are achieved, trouble and labor are saved, the detection efficiency can be greatly improved, human detection errors are avoided, and the detection accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the field of nondestructive testing of bearings, in particular to a nondestructive testing device for bearings based on magnetic particle testing. Background Art

[0002] Magnetic particle inspection utilizes the interaction between the leakage magnetic field at the defects of the workpiece and the magnetic powder. It utilizes the difference in the magnetic permeability of the surface and near-surface defects of steel products and the magnetic permeability of steel. After magnetization, the magnetic field at the discontinuities of these materials will be distorted, forming a leakage magnetic field on the surface of the workpiece where some magnetic flux leaks, thereby attracting magnetic powder to form magnetic powder accumulation at the defects - magnetic traces. Under appropriate lighting conditions, the defect position and shape are revealed. By observing and interpreting the accumulation of these magnetic powders, magnetic particle inspection is achieved.

[0003] Before leaving the factory, bearings need to be subjected to nondestructive testing using magnetic powder to ensure the production quality of the bearings. Existing technologies, such as a magnetic powder testing device for nondestructive testing of bearings with publication number CN216051523U, can reduce tedious manual operations to a certain extent. However, during the inspection, manual magnetization and magnetic powder testing of the bearings are still required. During the factory assembly line inspection, personnel are prone to fatigue, and the inspection efficiency is low, the manual inspection error is large, and the accuracy is low. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a non-destructive testing device for bearings based on magnetic particle testing.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] The utility model discloses a nondestructive testing device for bearings based on magnetic particle testing, comprising an annular guide rail, wherein the four corners of the guide rail are fixedly connected to columns, an electromagnet, a lighting lamp and a camera are arranged at the bottom of the guide rail, a movable groove is arranged at the bottom end of the guide rail, a movable seat is arranged in the movable groove, the bottom end of the movable seat is fixedly connected to a lifting column, the bottom end of the lifting column is fixedly connected to a clamping shell, a two-way telescopic rod is arranged inside the clamping shell, both ends of the two-way telescopic rod are fixedly connected to an outer rod, the bottom end of the outer rod is fixedly connected to an inner rod, the outer sides of the two inner rods abut against bearings, the surface of the guide rail is fixedly connected to two fixed frames, the bottom ends of the two fixed frames are fixedly connected to a detection outer cylinder, a detection inner cylinder is arranged inside the detection outer cylinder, the top end of the detection inner cylinder is fixedly connected to an arc-shaped spraying pipe, one end of the spraying pipe is fixedly connected to a pressure pump, one end of the pressure pump is connected to a magnetic powder storage barrel by a connecting pipe, and the magnetic powder storage barrel is fixedly connected to the guide rail.

[0007] As a preferred technical solution of the utility model, the guide rail surface is fixedly connected to multiple adjusting rods, the bottom end of the adjusting rod is hinged to the adjusting rod, one side of the adjusting rod is fixedly connected to a fan-shaped fixing plate, a plurality of annular fixing holes are opened on the surface of the fixing plate, bolts are arranged on the surface of the fixing plate, the bolts are inserted into the fixing rod through the fixing holes, the bottom end of the adjusting rod is fixedly connected to a connecting piece, and the connecting piece is fixedly connected to an electromagnet or a lighting lamp or a camera.

[0008] As a preferred technical solution of the utility model, cameras are arranged on both sides of the guide rail, and the two cameras are electrically connected to an external image reading device.

[0009] As a preferred technical solution of the utility model, a plurality of magnetic powder nozzles are provided on the surface of the spraying pipe, and a certain angle is set between the magnetic powder nozzles and the spraying pipe.

[0010] As an optimal technical solution of the utility model, a recovery chamber is arranged at the bottom end of the detection outer cylinder, two lifting members are fixedly connected to the surface of the detection outer cylinder, the other end of the lifting member is fixedly connected to the detection inner cylinder, a powder outlet hole is arranged on the inner wall of the detection inner cylinder, a recovery channel is arranged at the top of the powder outlet hole of the detection outer cylinder, and the bottom end of the recovery channel is connected to the recovery chamber.

[0011] As a preferred technical solution of the utility model, a motor is arranged inside the movable seat, both ends of the motor are fixedly connected to a connecting shaft, the connecting shaft passes through the movable seat and is fixedly connected to a movable wheel, and the movable wheel abuts against the movable groove.

[0012] As a preferred technical solution of the utility model, the inner sides of the two L-shaped outer rods are fixedly connected to the L-shaped inner rod, and the surfaces of the outer rods are fixedly connected to the reinforcing rods.

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

[0014] The utility model connects the electromagnet, the detection outer cylinder and the camera through the guide rail. The movable seat moves at the bottom end of the guide rail and cooperates with the lifting column to adjust the bearing height so as to realize the bearing magnetization, magnetic powder spraying and detection steps, which saves time and effort, can greatly improve the detection efficiency, avoid human detection errors and improve the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

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

[0017] Figure 2This is a schematic diagram of the overall structure of the utility model when viewed from above;

[0018] Figure 3 This is a schematic diagram of the structure of the mobile seat clamping the shell of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the regulating rod of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the detection outer cylinder and inner cylinder of the utility model;

[0021] Figure 6 The utility model Figure 5 Side cross-sectional view of the outer cylinder to be inspected;

[0022] In the figure: 1. guide rail; 2. column; 3. moving seat; 4. lifting column; 5. clamping shell; 6. two-way telescopic rod; 7. outer rod; 8. inner rod; 9. reinforcing rod; 10. bearing; 11. fixing frame; 12. detection outer cylinder; 13. detection inner cylinder; 14. lifting member; 15. powder outlet hole; 16. recovery channel; 17. recovery chamber; 18. arc spray pipe; 19. pressure pump; 20. magnetic powder storage barrel; 21. fixing rod; 22. adjusting rod; 23. fixing plate; 24. connecting piece; 25. electromagnet; 26. lighting lamp; 27. camera. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0024] In the drawings, the same reference numerals all refer to the same components.

[0025] Example 1

[0026] like Figure 1-6As shown, the utility model provides a non-destructive testing device for bearings based on magnetic particle testing, comprising an annular guide rail 1, wherein the four corners of the guide rail 1 are fixedly connected to columns 2, an electromagnet 25, a lighting lamp 26 and a camera 27 are arranged at the bottom of the guide rail 1, a movable groove is provided at the bottom end of the guide rail 1, a movable seat 3 is arranged in the movable groove, the bottom end of the movable seat 3 is fixedly connected to a lifting column 4, the bottom end of the lifting column 4 is fixedly connected to a clamping shell 5, a bidirectional telescopic rod 6 is arranged inside the clamping shell 5, both ends of the bidirectional telescopic rod 6 are fixedly connected to an outer rod 7, the bottom end of the outer rod 7 is fixedly connected to an inner rod 8, the outer sides of the two inner rods 8 abut against a bearing 10, two fixed frames 11 are fixedly connected to the surface of the guide rail 1, the bottom ends of the two fixed frames 11 are fixedly connected to a detection outer cylinder 12, a detection inner cylinder 13 is arranged inside the detection outer cylinder 12, the top end of the detection inner cylinder 13 is fixedly connected to an arc-shaped spraying pipe 18, one end of the spraying pipe 18 is fixedly connected to a pressure pump 19, one end of the pressure pump 19 is connected to a magnetic powder storage barrel 20 by a connecting pipe, and the magnetic powder storage barrel 20 is fixedly connected to the guide rail 1.

[0027] Furthermore, a plurality of adjusting rods 22 are fixedly connected to the surface of the guide rail 1, the bottom end of the adjusting rod 22 is hinged to the adjusting rod 22, one side of the adjusting rod 22 is fixedly connected to a fan-shaped fixing plate 23, a plurality of annular fixing holes are provided on the surface of the fixing plate 23, bolts are arranged on the surface of the fixing plate 23, the bolts are inserted into the fixing rod 21 through the fixing holes, the bottom end of the adjusting rod 22 is fixedly connected to a connecting piece 24, the connecting piece 24 is fixedly connected to an electromagnet 25 or a lighting lamp 26 or a camera 27; the fan-shaped fixing plate 23 is driven by the adjusting rod 22 to rotate along the hinge of the fixing rod 21, after changing the angle between the fixing rod 21 and the adjusting rod 22, the bolts can be inserted into the corresponding fixing holes to fix the adjusting rod 22, thereby the angle position of each electromagnet 25, lighting lamp 26 and camera 27 can be adjusted according to actual needs.

[0028] Cameras 27 are arranged on both sides of the guide rail 1, and the two cameras 27 are electrically connected to an external image reading device; the two cameras 27 are located on both sides of the guide rail 1, and when the moving seat 3 drives the bearing 10 to move in the guide rail 1, the cameras 27 on both sides can pick up image data of the bearing 10 at different angles, so that the image reading device can be used to determine whether there are magnetic powder lines caused by defects on the surface of the bearing 10, thereby avoiding long-term human recognition fatigue and reducing the accuracy of human detection.

[0029] A plurality of magnetic powder nozzles are provided on the surface of the spraying pipe 18 , and a certain angle is set between the magnetic powder nozzles and the spraying pipe 18 ; by setting a certain angle, the magnetic powder can be prevented from being sprayed out of the detection inner cylinder 13 .

[0030] A recovery chamber 17 is arranged at the bottom end of the detection outer cylinder 12, two lifting members 14 are fixedly connected to the surface of the detection outer cylinder 12, and the other end of the lifting member 14 is fixedly connected to the detection inner cylinder 13. A powder outlet hole 15 is arranged on the inner wall of the detection inner cylinder 13, and a recovery channel 16 is arranged at the top of the powder outlet hole 15 of the detection outer cylinder 12, and the bottom end of the recovery channel 16 is connected to the recovery chamber 17; after a certain amount of magnetic powder is sprayed on the magnetized bearing 10, a certain amount of magnetic powder is accumulated at the bottom end of the detection inner cylinder 12, and the detection inner cylinder 12 is driven to rise by the lifting member 14, so that the staggered powder outlet hole 15 and the recovery channel 16 gradually overlap, and the magnetic powder in the detection inner cylinder can flow into the recovery channel 16 through the powder outlet hole 15, and finally fall into the recovery chamber 17, so as to realize the cleaning of the magnetic powder in the detection inner cylinder 13.

[0031] A motor is arranged inside the movable seat 3, and both ends of the motor are fixedly connected to a coupling shaft, and the coupling shaft passes through the movable seat 3 and is fixedly connected to a movable wheel, and the movable wheel abuts against the movable groove; the motor drives the coupling shaft to drive the movable wheel to rotate, so that the movable seat 3 moves in the guide rail 1 under the action of the movable wheel, so that the bearing 10 is magnetized at the electromagnet 25, magnetic powder is sprayed at the detection outer cylinder 12, and image information of the bearing 10 is collected through two cameras 27, thereby reducing manual operation and ensuring the accuracy of magnetic powder detection.

[0032] The inner sides of the two L-shaped outer rods 7 are fixedly connected to the L-shaped inner rods 8, and the surfaces of the outer rods 7 are fixedly connected to the reinforcing rods 9; the bearings 10 can be hung through the two L-shaped inner rods 8, and the strength of the outer rods 7 can be strengthened by the oblique reinforcing rods 9.

[0033] Specifically, the inner rod 8 is driven to telescopically move by the bidirectional telescopic rod 6 through the outer rod 7, and the factory bearing can be inserted into the inner rod 8 with human assistance. The L-shaped inner rod 8 is driven to abut against the bearing 10 under the action of the bidirectional telescopic rod 6, so that the bearing 10 is clamped and fixed. The bearing 10 can be driven to move along the guide rail 1 under the action of the moving seat 3, so that the clamped bearing 10 is close to the electromagnet 25. The bearing 10 is magnetized under the action of the electromagnet 25. After the bearing 10 is magnetized, it can be moved to the top of the detection outer cylinder 12 under the action of the moving seat 3. Under the action of the lifting column 4, the magnetized bearing 10 is placed in the detection inner cylinder 13, and the magnetic powder in the magnetic powder storage barrel 20 is extracted by the pressure pump 19 and sprayed out through the arc-shaped spray pipe 18. After waiting for a period of time, the inner rod 8 is raised to transfer the bearing 10 to the camera 27. The lighting lamp 26 can illuminate the bearing 10. The two cameras 27 collect images on both sides of the bearing 10 and transmit the image information to the reading device to extract the detection data to complete the non-destructive detection of the bearing, reduce manual operations, and ensure the accuracy of detection.

[0034] In summary, the utility model connects the electromagnet 25, the detection outer cylinder 12, and the camera 27 through the guide rail 1, and the movable seat 3 moves at the bottom end of the guide rail 1, and cooperates with the lifting column 4 to adjust the height of the bearing 10, so as to realize the bearing magnetization, magnetic powder spraying and detection steps, which saves time and effort, can greatly improve the detection efficiency, avoid human detection errors, and improve the detection accuracy.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A non-destructive testing device for bearings based on magnetic particle testing, comprising an annular guide rail (1), characterized in that: The four corners of the guide rail (1) are fixedly connected to the upright posts (2); an electromagnet (25), an illuminating lamp (26) and a camera (27) are arranged at the bottom of the guide rail (1); a movable groove is provided at the bottom of the guide rail (1); a movable seat (3) is arranged in the movable groove; the bottom end of the movable seat (3) is fixedly connected to a lifting column (4); the bottom end of the lifting column (4) is fixedly connected to a clamping shell (5); a bidirectional telescopic rod (6) is arranged inside the clamping shell (5); both ends of the bidirectional telescopic rod (6) are fixedly connected to an outer rod (7); the bottom end of the outer rod (7) is fixedly connected to an inner rod ( 8), the outer sides of the two inner rods (8) abut against the bearings (10), the surface of the guide rail (1) is fixedly connected to the two fixing frames (11), the bottom ends of the two fixing frames (11) are fixedly connected to the detection outer cylinder (12), the detection inner cylinder (13) is arranged inside the detection outer cylinder (12), the top end of the detection inner cylinder (13) is fixedly connected to the arc-shaped spray pipe (18), one end of the spray pipe (18) is fixedly connected to the pressure pump (19), one end of the pressure pump (19) is connected to the magnetic powder storage barrel (20), and the magnetic powder storage barrel (20) is fixedly connected to the guide rail (1).

2. According to claim 1, a nondestructive testing device for bearings based on magnetic particle testing is characterized in that: The surface of the guide rail (1) is fixedly connected to a plurality of adjustment rods (22); the bottom end of the adjustment rod (22) is hinged to the adjustment rod (22); one side of the adjustment rod (22) is fixedly connected to a fan-shaped fixing plate (23); a plurality of annular fixing holes are provided on the surface of the fixing plate (23); bolts are arranged on the surface of the fixing plate (23); the bolts penetrate into the fixing rod (21) through the fixing holes; the bottom end of the adjustment rod (22) is fixedly connected to a connecting piece (24); the connecting piece (24) is fixedly connected to an electromagnet (25) or a lighting lamp (26) or a camera (27).

3. The nondestructive testing device for bearings based on magnetic particle testing according to claim 1 is characterized in that: Cameras (27) are arranged on both sides of the guide rail (1), and the two cameras (27) are electrically connected to an external image reading device.

4. The nondestructive testing device for bearings based on magnetic particle testing according to claim 1 is characterized in that: A plurality of magnetic powder nozzles are provided on the surface of the spraying pipe (18), and a certain angle is set between the magnetic powder nozzles and the spraying pipe (18).

5. The nondestructive testing device for bearings based on magnetic particle testing according to claim 1 is characterized in that: A recovery chamber (17) is arranged at the bottom end of the detection outer cylinder (12); two lifting members (14) are fixedly connected to the surface of the detection outer cylinder (12); the other end of the lifting member (14) is fixedly connected to the detection inner cylinder (13); a powder outlet hole (15) is arranged on the inner wall of the detection inner cylinder (13); a recovery channel (16) is arranged at the top of the powder outlet hole (15) of the detection outer cylinder (12); and the bottom end of the recovery channel (16) is connected to the recovery chamber (17).

6. The nondestructive testing device for bearings based on magnetic particle testing according to claim 1 is characterized in that: A motor is arranged inside the movable seat (3), two ends of the motor are fixedly connected to a coupling shaft, the coupling shaft passes through the movable seat (3) and is fixedly connected to a movable wheel, and the movable wheel abuts against the movable groove.

7. The nondestructive testing device for bearings based on magnetic particle testing according to claim 1 is characterized in that: The inner sides of the two L-shaped outer rods (7) are fixedly connected to the L-shaped inner rod (8), and the surfaces of the outer rods (7) are fixedly connected to the reinforcing rods (9).

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