Vibration eddy current probe monitoring device

Abstract

The utility model relates to the field of vibration monitoring, and discloses a vibration eddy current probe monitoring device which comprises a bracket-shaped adjusting seat, an arc-shaped hole is formed in the outer surface of the arc-shaped adjusting seat, a mounting block is arranged in the arc-shaped hole, and a plurality of limiting clamping plates are fixedly mounted on the left side and the right side of the mounting block respectively. A locking and fixing mechanism is arranged on the top face of the limiting clamping plate, an operator can fix the arc-shaped adjusting base to a proper position through a bolt, then the operator unscrews a locking bolt and slides a mounting block in an arc-shaped hole, and therefore the position and the angle of the probe of the eddy current sensor can be easily adjusted, and in the moving process, the probe of the eddy current sensor can be conveniently moved. An operator can observe the graduated scale to ensure the adjustment accuracy, after adjustment is completed, the position can be fixed only by screwing the locking bolt again, the design of the arc-shaped adjusting seat enables the eddy current sensor probe to be accurately adjusted according to actual requirements, convenience is improved, and the monitoring accuracy is improved.

Description

Technical Field

[0001] This application belongs to the technical field of vibration monitoring, and specifically relates to a vibration eddy current probe monitoring device. Background Technique

[0002] An eddy current sensor is a device that uses the eddy current principle for measurement. It is mainly used to detect the static and dynamic distances between the probe and the object to be measured. The object to be measured is usually a ferrite material. When the probe of the eddy current sensor approaches the object to be measured, the alternating electromagnetic field will be absorbed by the ferrite. The electronic circuit inside the sensor can sense and process this change amount, thereby obtaining the displacement value of the measured object. It can not only be used for radial vibration measurement to indicate the working condition of the bearing, but also detect mechanical faults such as rotor imbalance, misalignment, and shaft cracks. By monitoring the radial vibration of the bearing, the operator can judge the health status of the bearing, timely discover potential problems and take corresponding measures;

[0003] By monitoring the change in the axial position, the wear or potential bearing failure of the thrust bearing can be understood. Using the same eddy current probe, the axial vibration can also be measured to provide comprehensive mechanical operating state information. It can help the operator timely discover mechanical faults and potential problems, and ensure the safe and stable operation of the machine.

[0004] For example, the utility model patent with the publication number CN219573259U discloses a vibration monitoring device for a generator main shaft, which includes an eddy current displacement sensor and a cable. One end of the cable is equipped with a metal probe, and the other end of the cable is equipped with a plug. A connection end is installed on the back of the eddy current displacement sensor, and the connection end is connected to the plug through an externally provided installation mechanism. A storage mechanism for placing the metal probe is also provided on the back of the eddy current displacement sensor. In this utility model, the cable and the eddy current displacement sensor are connected and fixed through the provided installation mechanism, so that the cable plug and the connection end can be quickly disassembled and installed. On the one hand, it can achieve the quickness of plugging in the prior art, and on the other hand, it can also achieve the stability of threaded connection in the prior art, avoiding the loosening and falling off of the connection end of the eddy current displacement sensor and the cable easily occurring in a long-term vibration environment, and improving the service life of the eddy current displacement sensor.

[0005] However, it is found in the actual use process that: this device can achieve the quick disassembly and installation between the cable plug and the connection end through the installation mechanism, and try to avoid the loosening and falling off of the connection end and the cable easily occurring;

[0006] However, the installation and position adjustment of the metal probe of this device are not convenient enough, which limits its accuracy in monitoring the radial and axial vibrations of rotating shaft parts. Therefore, a vibration eddy current probe monitoring device is provided. Summary of the Utility Model

[0007] The purpose of this application is to provide a vibration eddy current probe monitoring device to solve the above-mentioned problems.

[0008] The technical solution adopted in this application is as follows: A vibration eddy current probe monitoring device includes an arc-shaped adjusting seat. An arc-shaped hole is provided on the outer surface of the arc-shaped adjusting seat. An installation block is arranged inside the arc-shaped hole. A plurality of limit clamping plates are respectively and fixedly installed on the left and right sides of the installation block. A locking and fixing mechanism is arranged on the top surface of the limit clamping plate. A circular installation hole is provided on the top surface of the installation block. An eddy current sensor probe is movably inserted through the circular installation hole. A threaded locking piece is threadedly connected to the outer surface of the eddy current sensor probe.

[0009] In a preferred embodiment, the locking and fixing mechanism includes a threaded seat, a locking bolt, and a through hole. The threaded seat is fixedly installed on the top surface of the limit clamping plate. The locking bolt is threadedly connected to the top surface of the threaded seat. A through hole is provided on the top surface of the limit clamping plate. One end of the locking bolt passes through the inside of the through hole and abuts against the outer surface of the arc-shaped adjusting seat.

[0010] In a preferred embodiment, an extension cable is fixed to the top end of the eddy current sensor probe. A connector is fixedly installed at one end of the extension cable away from the eddy current sensor probe. A connecting cable is arranged inside the connector. A preamplifier is arranged on one side of the arc-shaped adjusting seat. One end of the connecting cable away from the connector is connected to the preamplifier.

[0011] In a preferred embodiment, a plurality of fixing holes are provided on the top surface of the arc-shaped adjusting seat.

[0012] In a preferred embodiment, a rubber shock pad is fixedly installed on the top surface of the arc-shaped adjusting seat.

[0013] In a preferred embodiment, a scale is fixedly installed on the outer surface of the arc-shaped adjusting seat.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0015] 1. In this application, due to the adoption of the above-mentioned solution, the operator can fix the arc-shaped adjusting seat in an appropriate position with bolts. The selection of this position should ensure that the rotating shaft is located below the eddy current sensor probe or in the axial position of the rotating shaft, so as to facilitate the monitoring of the radial and axial vibrations of the rotating shaft. If it is necessary to adjust the position or tilt angle of the eddy current sensor probe, the operator can first loosen the locking bolt. Subsequently, the operator can slide the mounting block inside the arc-shaped hole, so that the position and angle of the eddy current sensor probe can be easily adjusted. During the movement, the operator can observe the scale to ensure the accuracy of the adjustment. When the adjustment is completed, just tighten the locking bolt again to fix the position. The design of the arc-shaped adjusting seat of this device enables the eddy current sensor probe to be accurately adjusted according to actual needs, which not only improves the convenience but also enhances the accuracy of monitoring. Brief Description of the Drawings

[0016] Figure 1 is a schematic diagram of the overall structure of this application;

[0017] Figure 2 is an exploded schematic diagram of a partial structure of this application;

[0018] Figure 3 is a schematic diagram of the structure without the installation of the eddy current sensor probe of this application;

[0019] Figure 4 is a schematic diagram of the rubber shock pad structure of this application.

[0020] Reference numerals in the figures: 1. Arc-shaped adjusting seat; 2. Arc-shaped hole; 3. Mounting block; 4. Limit clamping plate; 5. Locking and fixing mechanism; 6. Circular mounting hole; 7. Eddy current sensor probe; 8. Threaded locking piece; 9. Threaded seat; 10. Locking bolt; 11. Through hole; 12. Extension cable; 13. Adapter; 14. Connecting cable; 15. Pre-amplifier; 16. Fixing hole; 17. Rubber shock pad; 18. Scale. Detailed Description of the Preferred Embodiments

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are some, but not all, of the embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of this application without creative efforts shall fall within the scope of protection of this application.

[0022] Refer to Figure 1 , Figure 2 and Figure 3, A vibration eddy current probe monitoring device, including an arc-shaped adjustment seat 1. An arc-shaped hole 2 is provided on the outer surface of the arc-shaped adjustment seat 1. An installation block 3 is arranged inside the arc-shaped hole 2. A plurality of limit clamping plates 4 are fixedly installed on the left and right sides of the installation block 3 respectively; through the provided arc-shaped hole 2, it is convenient for the installation block 3 to slide and adjust inside it. A total of four limit clamping plates 4 are installed on the left and right sides of the installation block 3. Every two of the four limit clamping plates 4 are in a group and are divided into two groups. The two groups of limit clamping plates 4 are respectively installed on the left and right sides of the installation block 3. In this way, it is convenient to limit the installation block 3, so that the installation block 3 can slide and adjust the angle inside the arc-shaped hole 2.

[0023] Reference Figure 2 、 Figure 3 And Figure 4 , A plurality of fixing holes 16 are provided on the top surface of the arc-shaped adjustment seat 1. A rubber shock-absorbing pad 17 is fixedly installed on the top surface of the arc-shaped adjustment seat 1. A scale 18 is fixedly installed on the outer surface of the arc-shaped adjustment seat 1; through the provided plurality of fixing holes 16, it is convenient for personnel to use bolts to pass through their interiors, so that it is convenient to install the arc-shaped adjustment seat 1 in a suitable position. Through the provided rubber shock-absorbing pad 17, it is convenient to buffer and absorb the vibration generated by the equipment or object, and try to avoid excessive vibration affecting the stability of the arc-shaped adjustment seat 1.

[0024] Reference Figure 1 、 Figure 2 And Figure 3 , A locking and fixing mechanism 5 is arranged on the top surface of the limit clamping plate 4. The locking and fixing mechanism 5 includes a threaded seat 9, a locking bolt 10 and a through hole 11. A threaded seat 9 is fixedly installed on the top surface of the limit clamping plate 4. The locking bolt 10 is threadedly connected to the top surface of the threaded seat 9; through the provided threaded seat 9, it is convenient to threadedly connect the locking bolt 10, so that it is convenient to fix the adjusted installation block 3 later.

[0025] Reference Figure 1 、 Figure 2 And Figure 3 , A through hole 11 is provided on the top surface of the limit clamping plate 4. One end of the locking bolt 10 passes through the interior of the through hole 11 and abuts against the outer surface of the arc-shaped adjustment seat 1; through the provided locking and fixing mechanism 5, it is convenient to lock the installation block 3 after adjusting the angle. During specific operation, the operator first loosens the locking bolt 10, so that it is convenient for the installation block 3 to slide inside the arc-shaped hole 2 to adjust the angle. When the installation block 3 is adjusted to a suitable angle inside the arc-shaped hole 2, at this time, the operator tightens the locking bolt 10, so that the bottom end of the locking bolt 10 passes through the interior of the through hole 11 and abuts against the outer surface of the arc-shaped adjustment seat 1, which is convenient to fix the adjusted installation block 3.

[0026] Reference Figure 1 、 Figure 2 And Figure 3, a circular mounting hole 6 is provided on the top surface of the mounting block 3, and an eddy current sensor probe 7 is movably inserted through the inside of the circular mounting hole 6. A threaded locking piece 8 is threadedly connected to the outer surface of the eddy current sensor probe 7; the operator passes the eddy current sensor probe 7 through the inside of the circular mounting hole 6, and at this time, a threaded locking piece 8 is threadedly connected to the outer surface of the eddy current sensor probe 7, and the other threaded locking piece 8 is not installed. When the eddy current sensor probe 7 passes through the inside of the circular mounting hole 6 and is adjusted to a suitable length, the operator then screws the other non-installed threaded locking piece 8 into the bottom of the eddy current sensor probe 7. In this way, it is convenient to fix the eddy current sensor probe 7 with one threaded locking piece 8 installed on the upper part of the mounting block 3 and the other on the lower part of the mounting block 3, so that it is convenient to install and fix the eddy current sensor probe 7.

[0027] Reference Figure 1 , an extension cable 12 is fixed to the top end of the eddy current sensor probe 7. A connector 13 is fixedly installed at the end of the extension cable 12 away from the eddy current sensor probe 7. A connecting cable 14 is arranged inside the connector 13. A preamplifier 15 is arranged on one side of the arc-shaped adjusting seat 1. The end of the connecting cable 14 away from the connector 13 is connected to the preamplifier 15; by providing the extension cable 12, the connector 13 and the connecting cable 14, it is convenient to connect the eddy current sensor probe 7 and the preamplifier 15. This design improves the convenience of connection, making the connection between the two simpler and faster. The connection between the eddy current sensor probe 7 and the preamplifier 15 is to accurately monitor the vibration of the rotating shaft. When problems such as imbalance, misalignment or shaft crack occur in the rotating shaft, the eddy current sensor probe 7 can capture these abnormal conditions and convert them into electrical signals, which are then processed, analyzed by the preamplifier 15 and transmitted to the terminal. This monitoring method enables personnel to detect problems with the rotating shaft in a timely manner and take corresponding measures for repair or adjustment, thereby ensuring the normal operation of the equipment and extending its service life.

[0028] The implementation principle of the embodiment of the vibration eddy current probe monitoring device in this application is as follows: First, the operator passes the eddy current sensor probe 7 through the inside of the circular mounting hole 6 to ensure that the probe enters smoothly and has a certain amount of movement space. At this time, a threaded locking piece 8 is already connected to the outer surface of the eddy current sensor probe 7, and the other one is not installed. To fix the position of the eddy current sensor probe 7, the operator needs to adjust the length of the probe according to actual needs. Once adjusted to a suitable length, they can screw the other threaded locking piece 8 into the bottom, so that the two locking pieces are respectively installed on the upper and lower parts of the mounting block 3, thereby firmly fixing the eddy current sensor probe 7;

[0029] After installation, the operator can fix the arc-shaped adjusting seat 1 in place through bolts. The selection of this position should ensure that the rotating shaft class is located below the eddy current sensor probe 7 or in the axial position of the rotating shaft class, so as to facilitate the monitoring of the radial and axial vibrations of the rotating shaft class. If it is necessary to adjust the position or tilt angle of the eddy current sensor probe 7, the operator can first loosen the locking bolt 10. Subsequently, the operator can slide the mounting block 3 inside the arc-shaped hole 2, so that the position and angle of the eddy current sensor probe 7 can be easily adjusted. During the movement, the operator can observe the scale 18 to ensure the accuracy of the adjustment. When the adjustment is completed, just tighten the locking bolt 10 again to fix the position. The whole device has a simple structure and is easy to operate. The design of the arc-shaped adjusting seat 1 enables the eddy current sensor probe 7 to be accurately adjusted according to actual needs, which not only improves the convenience but also enhances the accuracy of monitoring.

[0030] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present application.

Claims

1. A vibration eddy current probe monitoring device, comprising an arc-shaped adjustment seat (1), characterized in that: The outer surface of the arc-shaped adjustment seat (1) is provided with an arc-shaped hole (2), the interior of the arc-shaped hole (2) is provided with a mounting block (3), a plurality of limit clamping plates (4) are fixedly mounted on the left and right sides of the mounting block (3), the top surface of the limit clamping plate (4) is provided with a locking and fixing mechanism (5), the top surface of the mounting block (3) is provided with a circular mounting hole (6), the interior of the circular mounting hole (6) is movably provided with an eddy current sensor probe (7), and the outer surface of the eddy current sensor probe (7) is threadedly connected with a threaded locking plate (8).

2. A vibrating eddy current probe monitoring device as claimed in claim 1, characterized in that: The locking and fixing mechanism (5) comprises a threaded seat (9), a locking bolt (10) and a through hole (11); the threaded seat (9) is fixedly mounted on the top surface of the limit clamp (4); the locking bolt (10) is threadedly connected to the top surface of the threaded seat (9); the through hole (11) is formed on the top surface of the limit clamp (4); one end of the locking bolt (10) passes through the interior of the through hole (11) and abuts against the outer surface of the arc-shaped adjustment seat (1).

3. A vibrating eddy current probe monitoring device as claimed in claim 1, characterized in that: An extension cable (12) is fixed to the top of the eddy current sensor probe (7); an adapter (13) is fixedly mounted on one end of the extension cable (12) away from the eddy current sensor probe (7); a connecting cable (14) is arranged inside the adapter (13); a preamplifier (15) is arranged on one side of the arc-shaped adjustment seat (1); and an end of the connecting cable (14) away from the adapter (13) is connected to the preamplifier (15).

4. A vibrating eddy current probe monitoring device as claimed in claim 1, characterized in that: A plurality of fixing holes (16) are provided on the top surface of the arc-shaped adjustment seat (1).

5. A vibrating eddy current probe monitoring device as claimed in claim 1, characterized in that: A rubber shock-absorbing pad (17) is fixedly mounted on the top surface of the arc-shaped adjustment seat (1).

6. A vibrating eddy current probe monitoring device as claimed in claim 1, characterized in that: A scale (18) is fixedly mounted on the outer surface of the arc-shaped adjustment seat (1).

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