A portable insulator fault detection device based on vibration resonance technology

Abstract

The present invention relates to the technical field of insulator fault detection, and specifically, it is a portable insulator fault detection device based on vibration resonance technology. The present invention includes a vertical sleeve frame, a fixed pulley is fixedly connected to the top of the vertical sleeve frame, an excitation acoustic detection device body is arranged between the two sides of the inner wall of the vertical sleeve frame, a connecting rope is fixedly connected to the top of the excitation acoustic detection device body, and one end of the connecting rope away from the excitation acoustic detection device body passes through the top of the vertical sleeve frame and the fixed pulley in sequence and is fixedly connected to a locator. By setting the connecting rope to lift the excitation acoustic detection device body, the excitation acoustic detection device body can be used to detect the faults of the insulator at this time, without manually holding the excitation acoustic detection device body, avoiding the vibration generated when the excitation acoustic detection device body contacts the insulator due to hand shaking and affecting the detection result.

Description

Technical Field

[0001] The present invention relates to the field of insulator fault detection, and specifically to a portable insulator fault detection device based on vibration resonance technology. Background Technique

[0002] There are a large number of post insulators and knife switch operating insulators in power transmission and transformation. During operation, internal crack faults often occur due to internal stress concentration caused by different material expansion coefficients, or due to the influence of operating impact stress and unidirectional shear stress. Therefore, a reasonable flaw detection device is needed to judge its mechanical strength and prevent the development of cracks from causing the fracture of porcelain insulators.

[0003] Due to problems such as the small gap between the porcelain skirts of some insulators, which makes it impossible to insert the probe, and the large diameter of some insulators, which results in poor coupling effect with the ultrasonic probe in the ultrasonic detection method, the existing technology uses vibration resonance technology for detection, that is, collects vibration signals through an excitation acoustic detection device to facilitate vibration spectrum detection and judge whether there are faults in the insulators.

[0004] In the existing technology, it is necessary to hold the excitation acoustic detection device in contact with the insulator for detection. However, when holding the excitation acoustic detection device, the hand may generate vibration, resulting in errors in the vibration detection of the insulator by the excitation acoustic detection device. Summary of the Invention

[0005] The purpose of the present invention is to provide a portable insulator fault detection device based on vibration resonance technology to solve the problems raised in the above background technique.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A portable insulator fault detection device based on vibration resonance technology includes a vertical sleeve frame. A fixed pulley is fixedly connected to the top of the vertical sleeve frame. An excitation acoustic detection device body is arranged between the two sides of the inner wall of the vertical sleeve frame. A connecting rope is fixedly connected to the top of the excitation acoustic detection device body. One end of the connecting rope away from the excitation acoustic detection device body passes through the top of the vertical sleeve frame and the fixed pulley in sequence and is fixedly connected to a locator. A plurality of positioning holes for cooperating with the locator are linearly arranged in an array on one side of the vertical sleeve frame;

[0008] The positioner includes a connecting frame. A gear is rotatably connected to the central position of the inner wall of the connecting frame. A first rack and a second rack are movably connected inside the connecting frame. One end of the second rack is fixedly connected to a positioning card shaft. One end of the first rack is fixedly connected to an operating lever. And one end of the second rack far from the operating lever is fixedly connected to a return spring. One end of the return spring is fixedly connected to one side of the inner wall of the connecting frame.

[0009] Preferably, the connecting frame is fixed to one end of the connecting rope. One end of the positioning card shaft passes through the connecting frame and extends into the positioning hole.

[0010] Preferably, the first rack and the second rack are respectively arranged above and below the gear, and both the first rack and the second rack are meshed with the gear.

[0011] Preferably, a guide rod is fixedly connected to one side of the vertical sleeve. A sliding sleeve is slidably connected to the guide rod. One side of the sliding sleeve is fixedly connected to a movable connecting rod. One end of the movable connecting rod is fixedly connected to the connecting frame.

[0012] Preferably, limiting sliding grooves are opened on both sides of the inner wall of the vertical sleeve. A lifting sliding plate is fixedly installed on the top of the vibration acoustic detection device body. Both sides of the lifting sliding plate extend into the limiting sliding grooves and are slidably connected to the limiting sliding grooves.

[0013] Preferably, a display screen is fixedly installed on one side of the vertical sleeve. A mounting seat is fixedly connected to one side of the vertical sleeve and below the display screen. The bottom of the display screen is fixedly connected to the top of the mounting seat.

[0014] Preferably, a comparison frame is fixedly installed on one side of the vertical sleeve and above the display screen. A comparison drawing is arranged on one side of the inner wall of the comparison frame. An adsorption magnetic plate is fixedly connected to one side of the comparison frame far from the comparison drawing. An adsorption pressing shaft for cooperating with the adsorption magnetic plate is arranged on one side of the comparison frame close to the comparison drawing.

[0015] Preferably, a transverse base is fixedly connected to the bottom of the vertical sleeve. A transverse round rod is fixedly connected between both sides of the inner wall of the transverse base. Two sliding sleeves are slidably connected to the transverse round rod. Tension springs are fixedly connected to both sides of the inner wall of the transverse base. The two tension springs are respectively fixedly connected to the two sliding sleeves.

[0016] Preferably, a sliding notch is opened on the top of the transverse base. A sliding shaft is fixedly connected to the top of the sliding sleeve. The top of the sliding shaft passes through the sliding notch and is fixedly connected to an arc-shaped clamping member.

[0017] On one side of the vertical sleeve, two pulling rings are fixedly connected, and the two pulling rings are respectively located at the top and bottom of one side of the vertical sleeve.

[0018] Advantages of the present invention:

[0019] By setting up a connecting rope to lift the vibration excitation acoustic detection equipment body, and bringing the vibration excitation acoustic detection equipment body into contact with the insulator clamped by two arc-shaped clamping parts. At this time, the insulator can be fault-detected by the vibration excitation acoustic detection equipment body without manually holding the vibration excitation acoustic detection equipment body, avoiding the vibration generated when the vibration excitation acoustic detection equipment body and the insulator come into contact due to hand shaking, which affects the detection result. And by pressing the operating lever, the positioner can be moved up and down, and the height of the vibration excitation acoustic detection equipment body can be quickly adjusted, which is convenient for fault detection of insulators of different sizes. Description of the drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings;

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is Figure 1 A schematic diagram of the structure of the side view part of the shown vertical sleeve;

[0023] Figure 3 It is Figure 2 An enlarged view of the shown position A;

[0024] Figure 4 It is Figure 3 A sectional view of the front view part of the shown connecting frame;

[0025] Figure 5 It is Figure 1 A schematic diagram of the structure of the shown transverse base part;

[0026] Figure 6 It is Figure 1 A schematic diagram of the structure of the shown comparison frame part;

[0027] Figure 7 It is Figure 6 A schematic diagram of the structure of the rear view part of the shown comparison frame.

[0028] The reference numerals in the drawings are as follows:

[0029] 1. Vertical sleeve, 2. Fixed pulley, 3. Vibration acoustic detection equipment body, 4. Connecting rope, 5. Positioner, 51. Connecting frame, 52. Gear, 53. First rack, 54. Second rack, 55. Positioning card shaft, 56. Operating lever, 57. Return spring, 6. Positioning hole, 7. Guide rod, 8. Sliding sleeve, 9. Movable connecting rod, 10. Limit chute, 11. Lifting slide plate, 12. Display screen, 13. Mounting seat, 14. Comparison frame, 15. Comparison drawing, 16. Adsorption magnetic plate, 17. Adsorption pressing shaft, 18. Horizontal base, 19. Horizontal round rod, 20. Sliding sleeve, 21. Tension spring, 22. Sliding notch, 23. Sliding shaft, 24. Arc-shaped clamping piece, 25. Pulling ring. Detailed implementation mode

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] A portable insulator fault detection device based on vibration resonance technology includes a vertical sleeve 1. A fixed pulley 2 is fixedly connected to the top of the vertical sleeve 1. Between the two sides of the inner wall of the vertical sleeve 1, there is a vibration acoustic detection equipment body 3. A connecting rope 4 is fixedly connected to the top of the vibration acoustic detection equipment body 3. One end of the connecting rope 4 away from the vibration acoustic detection equipment body 3 passes through the top of the vertical sleeve 1 and the fixed pulley 2 in sequence and is fixedly connected to a positioner 5. A plurality of positioning holes 6 that cooperate with the positioner 5 are arranged in a linear array on one side of the vertical sleeve 1;

[0032] The positioner 5 includes a connecting frame 51. A gear 52 is rotatably connected to the central position of the inner wall of the connecting frame 51. A first rack 53 and a second rack 54 are movably connected inside the connecting frame 51. One end of the second rack 54 is fixedly connected to a positioning card shaft 55. One end of the first rack 53 is fixedly connected to an operating lever 56. And one end of the second rack 54 away from the operating lever 56 is fixedly connected to a return spring 57. One end of the return spring 57 is fixedly connected to one side of the inner wall of the connecting frame 51.

[0033] As Figure 1 and Figure 2 , the connecting rope 4 passes through the fixed pulley 2, which can change the moving direction of the connecting rope 4. By the rotation of the fixed pulley 2 under the frictional force of the connecting rope 4, the wear of the connecting rope 4 can be reduced. There is an opening at the top of the vertical sleeve 1 to facilitate the passing of the connecting rope 4.

[0034] The body 3 of the excitation acoustic detection device is a prior art. By using a small exciter to contact the insulator, after generating excitation, the vibration signal is received by the small vibration signal collector at the front end of the device, and then fed back to the integrated circuit of the device. The data is transmitted to the display screen 12 through the installed WiFi interaction device. The processing module in the display screen 12 processes the data and converts it into a vibration spectrogram for display on the display screen 12.

[0035] One end of the connecting frame 51 is fixed to one end of the connecting rope 4, and one end of the positioning card shaft 55 passes through the connecting frame 51 and extends into the interior of the positioning hole 6.

[0036] The first rack 53 and the second rack 54 are respectively arranged above and below the gear 52, and both the first rack 53 and the second rack 54 are meshed with the gear 52.

[0037] One side of the vertical sleeve 1 is fixedly connected with a guide rod 7. A sliding sleeve 8 is slidably connected to the guide rod 7. One side of the sliding sleeve 8 is fixedly connected with a movable connecting rod 9, and one end of the movable connecting rod 9 is fixedly connected with the connecting frame 51.

[0038] As Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , by the sliding of the sliding sleeve 8 on the guide rod 7, the movable connecting rod 9 fixed to the sliding sleeve 8 and the connecting frame 51 can only move in the direction of the guide rod 7 along with the sliding sleeve 8. The positioning card shaft 55 is inserted into one of the positioning holes 6, which can prevent the connecting frame 51 from moving up and down, and the position of the connecting rope 4 will not change.

[0039] Limit sliding grooves 10 are opened on both sides of the inner wall of the vertical sleeve 1. The top of the body 3 of the excitation acoustic detection device is fixedly installed with a lifting sliding plate 11. Both sides of the lifting sliding plate 11 extend into the interior of the limit sliding grooves 10 and are slidably connected with the limit sliding grooves 10.

[0040] As Figure 1 and Figure 2 , by the sliding connection between the lifting sliding plate 11 and the limit sliding grooves 10, the lifting sliding plate 11 and the body 3 of the excitation acoustic detection device can only move in the vertical direction.

[0041] One side of the vertical sleeve 1 is fixedly installed with a display screen 12. One side of the vertical sleeve 1 and below the display screen 12 is fixedly connected with a mounting seat 13. The bottom of the display screen 12 is fixedly connected with the top of the mounting seat 13.

[0042] As Figure 1 and Figure 2, the mounting base 13 can provide support for the display screen 12, making the installation of the display screen 12 more stable.

[0043] On one side of the vertical sleeve 1 and above the display screen 12, a comparison frame 14 is fixedly installed. On one side of the inner wall of the comparison frame 14, a comparison drawing 15 is provided. On the side of the comparison frame 14 away from the comparison drawing 15, an adsorption magnetic plate 16 is fixedly connected. On the side of the comparison frame 14 close to the comparison drawing 15, an adsorption pressing shaft 17 for cooperating with the adsorption magnetic plate 16 is provided.

[0044] Such as Figure 6 And Figure 7 , through the adsorption force generated between the adsorption magnetic plate 16 and the adsorption pressing shaft 17, the comparison drawing 15 can be pressed tightly inside the comparison frame 14 through the adsorption pressing shaft 17. The comparison drawing 15 is printed with the vibration spectrum of the undamaged insulator. By comparing the vibration spectrum on the comparison drawing 15 with the vibration spectrum displayed on the display screen 12, it is possible to judge whether the insulator is damaged, which is convenient for comparison and quickly grasping whether there is a fault in the insulator.

[0045] The bottom of the vertical sleeve 1 is fixedly connected with a horizontal base 18. Between the two sides of the inner wall of the horizontal base 18, a horizontal round rod 19 is fixedly connected. Two sliding sleeves 20 are slidably connected to the horizontal round rod 19. On both sides of the inner wall of the horizontal base 18, a tension spring 21 is fixedly connected. The two tension springs 21 are respectively fixedly connected to the two sliding sleeves 20.

[0046] A sliding notch 22 is opened at the top of the horizontal base 18. The top of the sliding sleeve 20 is fixedly connected with a sliding shaft 23. The top of the sliding shaft 23 passes through the sliding notch 22 and is fixedly connected with an arc-shaped clamping member 24.

[0047] Such as Figure 1 And Figure 5 , through the tension of the tension spring 21, the two sliding sleeves 20 can be pushed towards each other. The sliding sleeves 20 drive the arc-shaped clamping members 24 to approach each other through the sliding shafts 23. The insulator can be placed between the two arc-shaped clamping members 24. The two arc-shaped clamping members 24 can clamp the insulator from both sides. The two arc-shaped clamping members 24 can squeeze the tension spring 21 through the sliding sleeves 20, and insulators of different sizes can be clamped, which is convenient for the bottom of the excitation acoustic detection device body 3 to contact the insulator for testing.

[0048] Two pulling rings 25 are fixedly connected to one side of the vertical sleeve 1, and the two pulling rings 25 are respectively located at the top and bottom of one side of the vertical sleeve 1.

[0049] Such as Figure 1 And Figure 2, through two pulling rings 25, when the vertical sleeve 1 is set horizontally, the staff can pull the pulling rings 25 from both ends, which is convenient for the handling and carrying of the vertical sleeve 1.

[0050] The working principle of a portable insulator fault detection device based on vibration resonance technology provided by the present invention is as follows:

[0051] When the insulator is clamped between two arc-shaped clamping members 24, such as Figure 1-4 , when the operating lever 56 is manually pressed into the connecting frame 51, the operating lever 56 drives the gear 52 to rotate through the first rack 53. The gear 52 drives the second rack 54 to move in the opposite direction to the operating lever 56, so that the second rack 54 drives the positioning card shaft 55 to disengage from the positioning hole 6. At this time, the positioner 5 can be moved up and down. The positioner 5 drives the excitation acoustic detection device body 3 at the other end through the connecting rope 4. When the positioner 5 moves up, the excitation acoustic detection device body 3 moves down. When the positioner 5 moves down, the excitation acoustic detection device body 3 moves up, so as to adjust the height of the excitation acoustic detection device body 3. When the excitation acoustic detection device body 3 contacts the insulator, the fault detection of the insulator can be carried out.

[0052] After the height adjustment of the excitation acoustic detection device body 3 is completed, the operating lever 56 is released, and the return spring 57 extends to push the first rack 53, so that the first rack 53 drives the operating lever 56 to move outside the connecting frame 51. At this time, the first rack 53 drives the second rack 54 to move in the reverse direction through the gear 52, so that the second rack 54 drives the positioning card shaft 55 to move, and one end of the positioning card shaft 55 is clamped into the positioning hole 6. At this time, the positioner 5 cannot move up, and the excitation acoustic detection device body 3 connected to the positioner 5 by the connecting rope 4 does not need to be held by hand during use.

[0053] Compared with the related technology, a portable insulator fault detection device based on vibration resonance technology provided by the present invention has the following beneficial effects:

[0054] By setting the connecting rope 4 to lift the excitation acoustic detection device body 3 and bringing the excitation acoustic detection device body 3 into contact with the insulator clamped by two arc-shaped clamping members 24, the fault detection of the insulator can be carried out through the excitation acoustic detection device body 3 at this time, without manually holding the excitation acoustic detection device body 3, avoiding the vibration generated when the excitation acoustic detection device body 3 contacts the insulator due to hand shaking, which affects the detection result. And by pressing the operating lever 56, the positioner 5 can be moved up and down, and the height of the excitation acoustic detection device body 3 can be quickly adjusted, which is convenient for the fault detection of insulators of different sizes.

[0055] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A portable insulator fault detection device based on vibration resonance technology, comprising a vertical sleeve frame (1), characterized in that, A fixed pulley (2) is fixedly connected to the top of the vertical sleeve frame (1). Between the two sides of the inner wall of the vertical sleeve frame (1), an excitation acoustic detection device body (3) is arranged. A connecting rope (4) is fixedly connected to the top of the excitation acoustic detection device body (3). One end of the connecting rope (4) far away from the excitation acoustic detection device body (3) passes through the top of the vertical sleeve frame (1) and the fixed pulley (2) in sequence and is fixedly connected to a locator (5). A plurality of positioning holes (6) used in cooperation with the locator (5) are arranged in a linear array on one side of the vertical sleeve frame (1); The locator (5) includes a connecting frame (51). A gear (52) is rotatably connected to the central position of the inner wall of the connecting frame (51). A first rack (53) and a second rack (54) are movably connected inside the connecting frame (51). One end of the second rack (54) is fixedly connected to a positioning card shaft (55). One end of the first rack (53) is fixedly connected to an operation lever (56). And one end of the second rack (54) far away from the operation lever (56) is fixedly connected to a return spring (57). One end of the return spring (57) is fixedly connected to one side of the inner wall of the connecting frame (51); The connecting frame (51) is fixed to one end of the connecting rope (4). One end of the positioning card shaft (55) passes through the connecting frame (51) and extends into the positioning hole (6); The first rack (53) and the second rack (54) are respectively arranged above and below the gear (52), and both the first rack (53) and the second rack (54) are meshed with the gear (52); A guide rod (7) is fixedly connected to one side of the vertical sleeve frame (1). A sliding sleeve (8) is slidably connected to the guide rod (7). One side of the sliding sleeve (8) is fixedly connected to a movable connecting rod (9). One end of the movable connecting rod (9) is fixedly connected to the connecting frame (51).

2. The portable insulator fault detection device based on vibration resonance technology according to claim 1, characterized in that, Limit sliding grooves (10) are opened on both sides of the inner wall of the vertical sleeve frame (1). A lifting sliding plate (11) is fixedly installed on the top of the excitation acoustic detection device body (3). Both sides of the lifting sliding plate (11) extend into the limit sliding grooves (10) and are slidably connected to the limit sliding grooves (10).

3. A portable insulator fault detection device based on vibration resonance technology according to claim 1, characterized in that A display screen (12) is fixedly installed on one side of the vertical sleeve frame (1). A mounting seat (13) is fixedly connected to one side of the vertical sleeve frame (1) and below the display screen (12). The bottom of the display screen (12) is fixedly connected to the top of the mounting seat (13).

4. The portable insulator fault detection device based on vibration resonance technology according to claim 3, characterized in that, A comparison frame (14) is fixedly installed on one side of the vertical sleeve frame (1) and above the display screen (12). A comparison drawing (15) is arranged on one side of the inner wall of the comparison frame (14). An adsorption magnetic plate (16) is fixedly connected to one side of the comparison frame (14) far away from the comparison drawing (15). An adsorption pressing shaft (17) used in cooperation with the adsorption magnetic plate (16) is arranged on one side of the comparison frame (14) close to the comparison drawing (15).

5. The portable insulator fault detection device based on vibration resonance technology according to claim 1, characterized in that, The bottom of the vertical sleeve (1) is fixedly connected with a transverse base (18). Between the two sides of the inner wall of the transverse base (18), a transverse round rod (19) is fixedly connected. Two sliding sleeves (20) are slidably connected to the transverse round rod (19). On both sides of the inner wall of the transverse base (18), a tension spring (21) is fixedly connected. The two tension springs (21) are respectively fixedly connected to the two sliding sleeves (20).

6. The portable insulator fault detection device based on vibration resonance technology according to claim 5, characterized in that, A sliding notch (22) is formed at the top of the transverse base (18). The top of the sliding sleeve (20) is fixedly connected with a sliding shaft (23). The top of the sliding shaft (23) passes through the sliding notch (22) and is fixedly connected with an arc-shaped clamping member (24).

7. A portable insulator fault detection device based on vibration resonance technology according to claim 1, characterized in that, Two pulling rings (25) are fixedly connected to one side of the vertical sleeve (1). The two pulling rings (25) are respectively located at the top and bottom of one side of the vertical sleeve (1).

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