Generator retaining ring detection device

Abstract

The utility model provides a generator retaining ring detection device, which relates to the technical field of generator retaining ring detection, and comprises a device main body, the top of the device main body is provided with a fixed seat, the top of the fixed seat is provided with a bearing seat, the inner side of the bearing seat is provided with a connecting bearing, and one end of the connecting bearing is fixedly connected with a fixed rod. Hydraulic telescopic rod sets are arranged on the top, the bottom and the two sides of the fixing rod correspondingly, and one ends of the hydraulic telescopic rod sets are connected with the supporting plate. According to the protective ring fixing device, the fixing rod, the hydraulic telescopic rod set and the supporting plate are arranged, when the protective ring fixing device is used, the fixing rod is inserted into the inner side of a protective ring, the hydraulic telescopic rod set stretches to push the supporting plate to abut against the inner side of the protective ring, the protective ring can be fixed, meanwhile, the structure is suitable for the protective rings of different sizes and specifications, and the protective rings can be fixed; therefore, the universality of the device is effectively improved, the difficulty of mounting and dismounting the retaining ring is low, and the labor cost is effectively saved.

Description

Technical Field

[0001] The utility model relates to the technical field of generator guard ring detection, in particular to a generator guard ring detection device. Background Art

[0002] The generator guard ring and the rotor are fitted with an interference fit to fasten the windings at both ends of the rotor so that they will not fly outwards under the action of centrifugal force during operation. The generator guard ring is subjected to assembly stress, centrifugal force, temperature difference stress, etc., and works in a strong magnetic field and humid corrosive medium at a working temperature of about 100°C. Due to the harsh service conditions, the generator guard ring is prone to stress corrosion cracking on the inner wall. During maintenance, the guard ring of the in-service generator is basically not disassembled, so the inner wall defects can only be detected from the outside through ultrasonic testing.

[0003] When using the existing generator retaining ring detection device, the retaining ring is usually clamped and fixed by a buckle, and then the retaining ring is detected by an ultrasonic detection instrument. However, the existing generator retaining ring detection device cannot clamp and fix retaining rings of different sizes, resulting in poor versatility of the device. In addition, the existing device cannot rotate and adjust the detection surface, and manual operation is required. The whole process is relatively complicated, time-consuming and labor-intensive, and easily affects work efficiency and detection accuracy. Utility Model Content

[0004] The utility model mainly provides a generator guard ring detection device which can clamp and fix guard rings of different sizes and specifications and conveniently adjust the detection surface.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a generator guard ring detection device, comprising: a device body, a fixed seat is arranged on the top of the device body, a bearing seat is installed on the top of the fixed seat, a connecting bearing is arranged on the inner side of the bearing seat, one end of the connecting bearing is fixedly connected to a fixing rod, a hydraulic telescopic rod group is arranged on the top, bottom and both sides of the fixing rod, and one end of the hydraulic telescopic rod group is connected to a support plate.

[0006] Preferably, a mounting seat is provided on one side of the fixing seat, a fixing plate is provided on the top of the mounting seat, a first servo motor is installed on one side of the fixing plate, and an output end of the first servo motor movably passes through the fixing plate and is connected to a connecting bearing. The first servo motor can be fixed and protected by the mounting seat and the fixing plate to maintain the stability of the first servo motor during operation and prevent it from being damaged by external factors. By driving the output shaft of the first servo motor to drive the connecting bearing to rotate, the detection surface of the guard ring can be adjusted without manual operation, thus saving labor costs and effectively improving work efficiency and detection accuracy.

[0007] Preferably, a plurality of hydraulic lifting rods are arranged on the top of the device body, and the tops of the plurality of hydraulic lifting rods are connected to a supporting plate. The supporting plate is arranged below the fixed rod. The height of the supporting plate can be adjusted by retracting the hydraulic lifting rods. The outer side of the guard ring can be protected by the supporting plate to prevent wear caused by friction between the guard ring and the device body.

[0008] Preferably, a linear module frame is arranged on the top of the device body, a screw rod is arranged on the inner side of the linear module frame, and a second servo motor is arranged on the top of the linear module frame. The output end of the second servo motor movably passes through the linear module frame and is connected with the screw rod. The screw rod is driven to rotate by the second servo motor, so that the slider can slide on the screw rod, thereby adjusting the up and down height of the probe.

[0009] Preferably, a slider is arranged outside the screw rod, and a probe is arranged at one end of the slider. The probe can be installed and fixed through the slider, and ultrasonic waves can be emitted to the guard ring for detection through the probe.

[0010] Preferably, a mounting frame is provided on one side of the linear module frame, an ultrasonic detector is installed on the surface of the mounting frame, a connecting line is connected to the top of the ultrasonic detector, one end of the connecting line is connected to the probe, and the ultrasonic detector can be fixed by the mounting frame to prevent it from falling off. The ultrasonic detector can emit ultrasonic waves from the probe via the connecting line and simultaneously receive and display the returned ripple signal.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] 1. In the utility model, by providing a fixing rod, a hydraulic telescopic rod group and a support plate, when in use, the fixing rod is inserted into the inner side of the guard ring, and then the hydraulic telescopic rod group is extended to push the support plate against the inner side of the guard ring, so that the guard ring can be fixed. At the same time, this structure is suitable for guard rings of different sizes and specifications, and can fix them, thereby effectively improving the versatility of the device, and the difficulty of installing and removing the guard ring is also relatively low, which effectively saves labor costs.

[0013] 2. In the utility model, a mounting seat, a fixing plate and a first servo motor are provided. When in use, the first servo motor can be fixed and protected by the mounting seat and the fixing plate to maintain the stability of the first servo motor during operation and prevent it from being damaged by external factors. The output shaft is driven by the first servo motor to drive the connecting bearing to rotate, and the detection surface of the guard ring can be adjusted without manual operation, thus saving labor costs and effectively improving work efficiency and detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional diagram of a generator guard ring detection device is proposed for the utility model;

[0015] Figure 2 A side view of a generator guard ring detection device is provided for the utility model;

[0016] Figure 3 A schematic diagram of the first servo motor structure of a generator guard ring detection device is provided for the utility model;

[0017] Figure 4 The utility model provides a schematic structural diagram of an ultrasonic detector for a generator guard ring detection device.

[0018] Legend: 1. Device body; 2. Fixed seat; 3. Bearing seat; 4. Connecting bearing; 5. Fixed rod; 6. Hydraulic telescopic rod group; 7. Support plate; 8. Mounting seat; 9. Fixed plate; 10. First servo motor; 11. Hydraulic lifting rod; 12. Support plate; 13. Linear module frame; 14. Screw rod; 15. Second servo motor; 16. Slider; 17. Probe; 18. Mounting frame; 19. Ultrasonic detector; 20. Connecting wire. DETAILED DESCRIPTION

[0019] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0021] See also Figure 1-Figure 4 The utility model provides a technical solution: a generator guard ring detection device, including a device body 1, a fixing seat 2 is arranged on the top of the device body 1, a bearing seat 3 is installed on the top of the fixing seat 2, a connecting bearing 4 is arranged on the inner side of the bearing seat 3, one end of the connecting bearing 4 is fixedly connected to a fixing rod 5, a hydraulic telescopic rod group 6 is arranged on the top, bottom and both sides of the fixing rod 5, one end of the hydraulic telescopic rod group 6 is connected to a supporting plate 7, the guard ring can be fixed by inserting the fixing rod 5 into the inner side of the guard ring, and then extending and retracting the hydraulic telescopic rod group 6 to push the supporting plate 7 against the inner side of the guard ring, and at the same time, this structure is suitable for guard rings of different sizes and specifications, and can fix them, thereby effectively improving the versatility of the device, and the difficulty of installing and removing the guard ring is also relatively low, which effectively saves labor costs.

[0022] like Figure 1 , Figure 2 and Figure 3As shown, a mounting seat 8 is arranged on one side of the fixing seat 2, a fixing plate 9 is arranged on the top of the mounting seat 8, a first servo motor 10 is installed on one side of the fixing plate 9, and an output end of the first servo motor 10 movably passes through the fixing plate 9 and is connected to the connecting bearing 4. The first servo motor 10 can be fixed and protected by the mounting seat 8 and the fixing plate 9 to maintain the stability of the first servo motor 10 during operation and prevent it from being damaged by external factors. The output shaft is driven by the first servo motor 10 to drive the connecting bearing 4 to rotate, and the detection surface of the guard ring can be adjusted without manual operation, thereby saving labor costs and effectively improving work efficiency and detection accuracy.

[0023] like Figure 1 and Figure 2 As shown, a plurality of hydraulic lifting rods 11 are arranged on the top of the device body 1, and the tops of the plurality of hydraulic lifting rods 11 are connected to a supporting plate 12, and the supporting plate 12 is arranged below the fixed rod 5. The height of the supporting plate 12 can be adjusted by extending and retracting the hydraulic lifting rods 11, and the supporting plate 12 can be used to protect the outer side of the guard ring to prevent wear caused by friction between the guard ring and the device body 1.

[0024] like Figure 1 , Figure 2 and Figure 4 As shown, a linear module frame 13 is arranged on the top of the device body 1, a screw rod 14 is arranged on the inner side of the linear module frame 13, and a second servo motor 15 is arranged on the top of the linear module frame 13. The output end of the second servo motor 15 movably penetrates the linear module frame 13 and is connected to the screw rod 14. The screw rod 14 is driven to rotate by the second servo motor 15, so that the slider 16 can slide on the screw rod 14, thereby adjusting the up and down height of the probe 17.

[0025] like Figure 1 , Figure 2 and Figure 4 As shown, a slider 16 is arranged outside the screw rod 14 , and a probe 17 is arranged at one end of the slider 16 . The probe 17 can be installed and fixed through the slider 16 , and ultrasonic waves can be emitted to the guard ring for detection through the probe 17 .

[0026] like Figure 1 , Figure 2 and Figure 4 As shown, a mounting frame 18 is provided on one side of the linear module frame 13, an ultrasonic detector 19 is installed on the surface of the mounting frame 18, a connecting line 20 is connected to the top of the ultrasonic detector 19, one end of the connecting line 20 is connected to the probe 17, the ultrasonic detector 19 can be fixed by the mounting frame 18 to prevent it from falling off, and the ultrasonic detector 19 can emit ultrasonic waves from the probe 17 via the connecting line 20, and at the same time receive and display the returned ripple signal.

[0027] The method of use and working principle of the device are as follows: first, insert the fixing rod 5 into the inner side of the guard ring, and push the support plate 7 against the inner side of the guard ring through the hydraulic telescopic rod group 6 to fix the guard ring, and push the support plate 12 to fit the outer side of the guard ring through the hydraulic lifting rod 11 to protect it, then start the second servo motor 15 to drive the screw rod 14 to rotate, so that the slider 16 drives the probe 17 to slide up and down to adjust the height, and then start the ultrasonic detector 19, and emit ultrasonic waves from the probe 17 to detect the guard ring, and finally start the first servo motor 10 to drive the connecting bearing 4 to rotate the guard ring fixed on the support plate 7, and the detection surface can be adjusted, so as to perform a comprehensive detection of the entire guard ring.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A generator guard ring detection device, characterized in that: include: A device body (1) is provided with a fixing seat (2) at the top of the device body (1), a bearing seat (3) is installed at the top of the fixing seat (2), a connecting bearing (4) is provided on the inner side of the bearing seat (3), one end of the connecting bearing (4) is fixedly connected to a fixing rod (5), a hydraulic telescopic rod group (6) is provided at the top, bottom and both sides of the fixing rod (5), and one end of the hydraulic telescopic rod group (6) is connected to a support plate (7).

2. The generator guard ring detection device according to claim 1, characterized in that: A mounting seat (8) is arranged on one side of the fixing seat (2), a fixing plate (9) is arranged on the top of the mounting seat (8), a first servo motor (10) is installed on one side of the fixing plate (9), and an output end of the first servo motor (10) movably passes through the fixing plate (9) and is connected to the connecting bearing (4).

3. The generator guard ring detection device according to claim 1, characterized in that: A plurality of hydraulic lifting rods (11) are arranged on the top of the device body (1), and the tops of the plurality of hydraulic lifting rods (11) are connected to a supporting plate (12), and the supporting plate (12) is arranged below the fixing rod (5).

4. The generator guard ring detection device according to claim 1, characterized in that: A linear module frame (13) is arranged on the top of the device body (1), a screw rod (14) is arranged on the inner side of the linear module frame (13), a second servo motor (15) is arranged on the top of the linear module frame (13), and an output end of the second servo motor (15) movably passes through the linear module frame (13) and is connected to the screw rod (14).

5. The generator guard ring detection device according to claim 4, characterized in that: A slider (16) is arranged outside the screw rod (14), and a probe (17) is arranged at one end of the slider (16).

6. The generator guard ring detection device according to claim 4, characterized in that: A mounting frame (18) is provided on one side of the linear module frame (13), an ultrasonic detector (19) is installed on the surface of the mounting frame (18), a connecting line (20) is connected to the top of the ultrasonic detector (19), and one end of the connecting line (20) is connected to the probe (17).

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