Generator retaining ring surface corrosion defect automatic detection device

Abstract

The invention discloses a generator retaining ring surface corrosion defect automatic detection device, and relates to the technical field of corrosion detection, and the generator retaining ring surface corrosion defect automatic detection device comprises a base, a rotating mechanism, an autorotation mechanism, a clamping mechanism, a spraying mechanism, a removing mechanism and a fluorescence irradiation lamp. Through a rotating mechanism, an autorotation mechanism, a spraying mechanism, a removing mechanism and a fluorescent irradiation lamp, a second motor is controlled to operate, the generator retaining ring is driven to rotate, a first motor is controlled to operate, the generator retaining ring in a clamping mechanism rotates along with a rotating disc, a draw-off pump is controlled to operate, and a fluorescent agent is sprayed to the surface of the autorotation generator retaining ring; under the cooperation of the raised erasing block, the fluorescent agent on the surface of the generator retaining ring is erased and the fluorescent agent in the corrosion pit on the inner surface is retained, and after the work is finished, a detector can clearly observe the position and corrosion condition of the corrosion pit through the fluorescent agent, so that the detection effect is effectively improved, and the detection efficiency is improved. The problem that detection personnel cannot easily observe the condition of the corrosion pit is solved.

Description

Technical Field

[0001] The invention relates to the technical field of corrosion detection, in particular to an automatic detection device for corrosion defects on the surface of a generator guard ring. Background Art

[0002] The power plant is equipped with diesel generator sets in some workshops, such as the fire pump room and the chemical water workshop, to ensure the normal operation of the water pipeline in the plant when the main engine is shut down. The generator guard ring is an important component of the diesel generator set. Its function is to protect the insulation layer of the generator winding, prevent foreign substances from contacting the insulating oil, and protect the gap between the stator winding and the rotor winding. During use, the generator guard ring often corrodes and cracks due to working medium pollution, material quality problems, mechanical stress and other reasons, which has a huge impact on the operation and safety of the generator. At present, after the production of the generator guard ring is completed, it is necessary to conduct batch inspections and corrode it with corrosive liquid to test whether its corrosion resistance is qualified.

[0003] At present, most detection methods are manual detection. Inspectors observe the corrosion pits on the surface of the generator guard ring with the naked eye. However, this kind of detection not only requires a lot of manpower, but also has a very low detection effect. Some tiny corrosion pits or cracks are difficult to observe with the naked eye and are often missed, which greatly increases the quality risk of the generator guard ring. Summary of the invention

[0004] The purpose of the present invention is to make up for the deficiencies of the prior art and to provide an automatic detection device for corrosion defects on the surface of a generator guard ring.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: an automatic detection device for surface corrosion defects of a generator guard ring, comprising a base, a rotating mechanism, a self-rotating mechanism, a clamping mechanism, a spraying mechanism, a cleaning mechanism and a fluorescent lamp, wherein the rotating mechanism is installed inside the base, the self-rotating mechanism is installed above the rotating mechanism, the clamping mechanism is provided with a plurality of groups, each group of the clamping mechanisms is installed above the rotating mechanism and connected to the self-rotating mechanism, the spraying mechanism is arranged above the clamping mechanism, the cleaning mechanism is installed on the upper surface of the base, the fluorescent lamp is arranged above the self-rotating mechanism, the self-rotating mechanism comprises a second motor, and the second motor is arranged Installed above the rotating mechanism, the output end of the second motor is fixedly connected to the second rotating shaft, the upper end of the second rotating shaft is fixedly connected to a worm wheel, the side of the worm wheel is meshed with a worm, the number of the worms corresponds to the number of the clamping mechanisms, and the ends of the worms away from each other are fixedly connected to the third rotating shaft, and the clamping mechanism includes a clamping frame, and the clamping frame is installed above the rotating mechanism, and the ends of the third rotating shafts away from the worms are rotatably passed through the outer sides of the four groups of clamping frames and extend to the inner sides of the clamping frames, and the ends of the third rotating shafts located inside the clamping frames are fixedly connected to the first clamping plate, and the guard ring to be detected is clamped by the first clamping plate and the second clamping plate matched therewith.

[0006] Furthermore, the interior of the clamping frame is fixedly connected to a limiting slide bar, a movable plate is arranged above the clamping frame, the bottom surface of the movable plate is fixedly connected to a limiting slider, the limiting slider is slidably connected to the surface of the limiting slide bar, a spring is penetrated through the surface of the limiting slide bar, one end of the spring is fixedly connected to the inner side of the clamping frame, the other end of the spring is fixedly connected to the side of the limiting slide bar, the inner side of the movable plate is rotatably connected to a fourth rotating shaft, and the end of the fourth rotating shaft away from the movable plate is fixedly connected to the second clamping plate.

[0007] Furthermore, a rubber pad is fixedly connected to one side of the second clamping plate away from the fourth rotating shaft, a rubber pad is fixedly connected to one side of the first clamping plate away from the third rotating shaft, and a generator guard ring is clamped between the two groups of rubber pads.

[0008] Furthermore, the rotating mechanism includes a first motor, which is fixedly connected to the inside of the base, and the output end of the first motor is fixedly connected to a first rotating shaft, the upper end of the first rotating shaft is passed through the inside of the base and extends to the upper surface of the base, the upper end of the first rotating shaft is fixedly connected to a turntable, the clamping frame is fixedly connected to the upper surface of the turntable, and the second motor is fixedly connected to the upper surface of the turntable.

[0009] Furthermore, a frame-type protective cover is fixedly connected to the upper surface of the base, and the spraying mechanism is installed on the upper surface of the protective cover.

[0010] Furthermore, the spraying mechanism includes an extraction pump, which is fixedly connected to the upper surface of the protective cover, and the water suction port of the extraction pump is fixedly connected to a first connecting pipe, and the end of the first connecting pipe away from the extraction pump is fixedly connected to a fluorescent agent storage box, and the fluorescent agent storage box is fixedly connected to the upper surface of the protective cover, and the water outlet of the extraction pump is fixedly connected to a second connecting pipe, the lower end of the second connecting pipe passes through the upper surface of the protective cover and extends to the interior of the protective cover, and the lower end of the second connecting pipe is fixedly connected to a spray head.

[0011] Furthermore, the cleaning mechanism includes a fixing rod fixedly connected to the upper surface of the base. The upper end of the fixing rod is fixedly connected to a raised erasing block, the bottom of the raised erasing block has a raised portion, and the specification of the raised portion matches the inner surface of the generator guard ring.

[0012] Furthermore, the fluorescent lamp is fixedly connected to the inside of the protective cover, a working door is provided on the front side of the protective cover, and a control switch is fixedly connected to the front side of the protective cover.

[0013] Compared with the prior art, the automatic detection device for surface corrosion defects of generator guard ring has the following beneficial effects:

[0014] 1. The present invention clamps the generator guard ring inside the clamping mechanism through a rotating mechanism, a self-rotating mechanism, a clamping mechanism, a spraying mechanism, a cleaning mechanism and a fluorescent irradiation lamp, controls the second motor to operate, and drives the guard ring to rotate with the cooperation of the worm gear, the worm, the third rotating shaft, the first clamping plate, the fourth rotating shaft and the second clamping plate, controls the first motor to operate, so that the generator guard ring in the clamping mechanism rotates with the turntable, controls the extraction pump to operate, and sprays the fluorescent agent in the fluorescent agent storage box on the self-rotating generator guard ring with the cooperation of the first connecting pipe, the second connecting pipe and the spray head. The surface of the generator guard ring is driven to rotate by the turntable. With the cooperation of the raised erasing block, the fluorescent agent on the surface of the guard ring is erased and the fluorescent agent in the corrosion pits on the inner surface is retained. During this period, the fluorescent lamp is always irradiating. When the work is completed, the inspector takes out the generator guard ring from the clamping mechanism. At this time, the inspector can clearly observe the position and corrosion condition of the corrosion pits through the fluorescent agent. This setting effectively improves the detection effect, solves the problem that the inspector is not easy to observe the corrosion pits, greatly improves the detection quality and efficiency, and avoids causing a large number of errors in the final detection results.

[0015] 2. The present invention uses a clamping mechanism. With the cooperation of a limit slider and a limit slide bar, the inspector pulls the movable plate to stretch the spring, places the generator guard ring between the first clamping plate and the second clamping plate, releases the movable plate, and clamps the generator guard ring with two sets of rubber pads with the cooperation of the limit slider, the limit slide bar and the reaction force of the spring. This arrangement can stably clamp the generator guard ring to avoid affecting the detection result due to unstable clamping, and can also clamp generator guard rings of different sizes, which is convenient for detecting generator guard rings of different sizes. The arrangement of two sets of rubber pads can protect the clamped generator guard ring to avoid damage to the generator guard ring due to improper clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of a three-dimensional front view structure of the present invention in section;

[0017] Figure 2 It is a three-dimensional front view structural schematic diagram of the present invention;

[0018] Figure 3 It is a schematic diagram of a partially cutaway three-dimensional front view structure of the present invention;

[0019] Figure 4 It is a schematic diagram of a three-dimensional front view of the clamping mechanism of the present invention;

[0020] Figure 5 It is a schematic diagram of a three-dimensional front view of the cross-section of the rotating mechanism of the present invention;

[0021] Figure 6 It is a three-dimensional front view structural schematic diagram of the spraying mechanism of the present invention;

[0022] Figure 7 It is a three-dimensional front view structural schematic diagram of the cleaning mechanism of the present invention.

[0023] In the figure: 1, base; 2, rotating mechanism; 201, first motor; 202, first rotating shaft; 203, turntable; 3, self-rotating mechanism; 301, second motor; 302, second rotating shaft; 303, worm gear; 304, worm; 305, third rotating shaft; 306, first clamping plate; 4, clamping mechanism; 401, clamping frame; 402, limit slide bar; 403, spring; 404, movable plate; 405, limit slide bar ; 406, fourth rotating shaft; 407, second clamping plate; 408, rubber cushion; 5, protective cover; 6, spraying mechanism; 601, extraction pump; 602, first connecting pipe; 603, fluorescent agent storage box; 604, second connecting pipe; 605, spray head; 7, cleaning mechanism; 701, fixing rod; 702, raised erasing block; 8, fluorescent lamp; 9, working door; 10, control switch; 11, generator guard ring. DETAILED DESCRIPTION

[0024] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0025] The present embodiment provides an automatic detection device for corrosion defects on the surface of a generator guard ring, which is used to detect corrosion pits on the surface of the generator guard ring. The device effectively improves the detection effect, solves the problem that it is difficult for inspectors to observe corrosion pits, greatly improves the quality and efficiency of detection, and avoids causing a large number of errors in the final detection results.

[0026] See also Figures 1 to 7 The embodiment of the present invention discloses an automatic detection device for corrosion defects on the surface of a generator guard ring, comprising a base 1, a rotating mechanism 2, a self-rotating mechanism 3, a clamping mechanism 4, a spraying mechanism 6, a cleaning mechanism 7 and a fluorescent lamp 8. The rotating mechanism 2 is installed inside the base 1, and the self-rotating mechanism 3 is installed above the rotating mechanism 2. In this embodiment, there are four groups of clamping mechanisms 4, and the four groups of clamping mechanisms 4 are symmetrically installed above the rotating mechanism 2 and connected to the self-rotating mechanism 3. The spraying mechanism 6 is arranged above the clamping mechanism 4, the cleaning mechanism 7 is installed on the upper surface of the base 1, and the fluorescent lamp 8 is arranged above the self-rotating mechanism 3. The self-rotating mechanism 3 includes a second motor 301, and the second motor 301 is installed above the rotating mechanism 2. The output end of the second motor 301 is fixedly connected to the second rotating shaft 302, the upper end of the second rotating shaft 302 is fixedly connected to the worm wheel 303, the side of the worm wheel 303 is meshingly connected to the worm 304, there are four groups of worm 304, the four groups of worm 304 are symmetrically distributed on the sides of the worm wheel 303, and the ends of the four groups of worm 304 that are away from each other are fixedly connected to the third rotating shaft 305. The clamping mechanism 4 includes a clamping frame 401, and the clamping frame 401 is installed above the rotating mechanism 2. The ends of the four groups of third rotating shafts 305 away from the worm 304 are rotatably penetrated through the outside of the four groups of clamping frames 401 and extend to the inside of the clamping frames 401, and the ends of the third rotating shafts 305 that are on the inner side of the clamping frame 401 are fixedly connected to the first clamping plate 306.

[0027] The second motor 301 is controlled to operate, and with the cooperation of the worm gear 303, the worm 304, the third rotating shaft 305, the first clamping plate 306, the fourth rotating shaft 406 and the second clamping plate 407, the generator guard ring 11 is driven to rotate, so that the spraying mechanism 6 can evenly spray the fluorescent agent on the surface of the generator guard ring 11. The setting of the cleaning mechanism 7 is convenient for cleaning the fluorescent agent on the surface of the generator guard ring 11. With the cooperation of the fluorescent lamp 8, the inspection personnel can more intuitively detect the corrosion pits on the surface of the generator guard ring 11.

[0028] The interior of the clamping frame 401 is fixedly connected to a limit slide bar 402, a movable plate 404 is arranged above the clamping frame 401, a limit slider 405 is fixedly connected to the bottom surface of the movable plate 404, the limit slider 405 is slidably connected to the surface of the limit slide bar 402, a spring 403 is penetrated through the surface of the limit slide bar 402, one end of the spring 403 is fixedly connected to the inner side of the clamping frame 401, the other end of the spring 403 is fixedly connected to the side of the limit slider 405, the inner side of the movable plate 404 is rotatably connected to a fourth rotating shaft 406, and the end of the fourth rotating shaft 406 away from the movable plate 404 is fixedly connected to a second clamping plate 407.

[0029] With the cooperation of the limit slider 405 and the limit slide bar 402, the inspector pulls the movable plate 404 to stretch the spring 403, places the generator retaining ring 11 between the first clamping plate 306 and the second clamping plate 407, loosens the movable plate 404, and with the cooperation of the limit slider 405, the limit slide bar 402 and the reaction force of the spring 403, clamps the generator retaining ring 11 through two sets of rubber pads 408. This setting can stably clamp the generator retaining ring 11 to avoid affecting the detection result due to unstable clamping, and can also clamp generator retaining rings 11 of different sizes, which is convenient for detecting generator retaining rings 11 of different sizes.

[0030] A rubber pad 408 is fixedly connected to one side of the second clamping plate 407 away from the fourth rotating shaft 406 . There are two groups of rubber pads 408 . The two groups of rubber pads 408 are respectively distributed on the sides of the first clamping plate 306 and the second clamping plate 407 . The generator guard ring 11 is clamped between the two groups of rubber pads 408 .

[0031] The two sets of rubber pads 408 can protect the clamped generator guard ring 11 and avoid damage to the generator guard ring 11 due to improper clamping.

[0032] The rotating mechanism 2 includes a first motor 201, which is fixedly connected to the inside of the base 1. The output end of the first motor 201 is fixedly connected to the first rotating shaft 202. The upper end of the first rotating shaft 202 is passed through the inside of the base 1 and extends to the upper surface of the base 1. The upper end of the first rotating shaft 202 is fixedly connected to the turntable 203. The clamping frame 401 is fixedly connected to the upper surface of the turntable 203. The second motor 301 is fixedly connected to the upper surface of the turntable 203.

[0033] The first motor 201 is controlled to operate so that the generator guard ring 11 in the clamping mechanism 4 rotates along with the turntable 203 , making it more convenient to spray the fluorescent agent on the surface of the generator guard ring 11 and to wipe off the fluorescent agent.

[0034] A protective cover 5 is fixedly connected to the upper surface of the base 1, and a spraying mechanism 6 is installed on the upper surface of the protective cover 5. The spraying mechanism 6 includes an extraction pump 601, which is fixedly connected to the upper surface of the protective cover 5. The water suction port of the extraction pump 601 is fixedly connected to a first connecting pipe 602, and one end of the first connecting pipe 602 away from the extraction pump 601 is fixedly connected to a fluorescent agent storage box 603, which is fixedly connected to the upper surface of the protective cover 5. The water outlet of the extraction pump 601 is fixedly connected to a second connecting pipe 604, and the lower end of the second connecting pipe 604 is penetrated through the upper surface of the protective cover 5 and extends to the interior of the protective cover 5, and the lower end of the second connecting pipe 604 is fixedly connected to a spray head 605.

[0035] By controlling the operation of the extraction pump 601 , with the cooperation of the first connecting pipe 602 , the second connecting pipe 604 and the spray head 605 , it is convenient for the inspection personnel to spray the fluorescent agent in the fluorescent agent storage box 603 onto the surface of the rotating generator guard ring 11 , so as to facilitate subsequent observation.

[0036] The cleaning mechanism 7 includes a fixing rod 701, which is fixedly connected to the upper surface of the base 1. The upper end of the fixing rod 701 is fixedly connected with a raised erasing block 702, and the raised portion of the raised erasing block 702 is in contact with the surface of the generator guard ring 11. The fluorescent lamp 8 is fixedly connected to the inside of the protective cover 5.

[0037] The generator guard ring 11 is driven to rotate by the turntable 203. With the cooperation of the raised erasing block 702, the fluorescent agent on the surface of the generator guard ring 11 is erased and the fluorescent agent in the corrosion pits on the inner surface is retained. During this period, the fluorescent lamp 8 continues to irradiate. When the work is completed, the inspection personnel can clearly observe the location and corrosion conditions of the corrosion pits through the fluorescent agent, which effectively improves the inspection effect.

[0038] A working door 9 is provided on the front side of the protective cover 5 , and a control switch 10 is fixedly connected to the front side of the protective cover 5 .

[0039] The setting of the working door 9 facilitates the inspection personnel to clamp the generator guard ring 11, and the control switch 10 facilitates people to control the device.

[0040] The working principle of the present invention is as follows: when using the device, the inspector passes through the working door 9, and with the cooperation of the limit slider 405 and the limit slide bar 402, pulls the movable plate 404, thereby stretching the spring 403, and places the generator retaining ring 11 between the first clamping plate 306 and the second clamping plate 407, and loosens the movable plate 404. With the cooperation of the limit slider 405, the limit slide bar 402 and the reaction force of the spring 403, the generator retaining ring 11 is clamped by two groups of rubber pads 408. The setting of the two groups of rubber pads 408 can protect the clamped generator retaining ring 11. After the generator retaining ring 11 is clamped inside the clamping mechanism 4, the second motor 301 is controlled to operate through the control switch 10. With the cooperation of the worm gear 303, the worm 304, the third rotating shaft 305, the first clamping plate 306, the fourth rotating shaft 406 and the second clamping plate 407, The generator retaining ring 11 is driven to rotate, and the first motor 201 is controlled to operate, so that the generator retaining ring 11 in the clamping mechanism 4 rotates with the turntable 203. The extraction pump 601 is controlled to operate by the control switch 10. With the cooperation of the first connecting pipe 602, the second connecting pipe 604 and the spray head 605, the fluorescent agent in the fluorescent agent storage box 603 is sprayed on the inner surface of the rotating generator retaining ring 11. The generator retaining ring 11 is driven to rotate by the turntable 203. With the cooperation of the raised erasing block 702, the fluorescent agent on the inner surface of the generator retaining ring 11 is erased and the fluorescent agent in the corrosion pits on the inner surface is retained. During this period, the fluorescent irradiation lamp 8 is controlled by the control switch 10 to irradiate all the time. When the work is completed, the inspector takes out the generator retaining ring 11 from the clamping mechanism 4. At this time, the inspector can clearly observe the position and corrosion condition of the corrosion pits through the fluorescent agent.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic detection device for surface corrosion defects of a generator guard ring, characterized in that: The invention comprises a base (1), a rotating mechanism (2), a self-rotating mechanism (3), a clamping mechanism (4), a spraying mechanism (6), a cleaning mechanism (7) and a fluorescent lamp (8), wherein the rotating mechanism (2) is installed inside the base (1), the self-rotating mechanism (3) is installed above the rotating mechanism (2), the clamping mechanism (4) is provided with a plurality of groups, each group of the clamping mechanisms (4) is installed above the rotating mechanism (2) and connected to the self-rotating mechanism (3), the spraying mechanism (6) is arranged above the clamping mechanism (4), the cleaning mechanism (7) is installed on the upper surface of the base (1), the fluorescent lamp (8) is arranged above the self-rotating mechanism (3), and the self-rotating mechanism (3) comprises a second motor (301), the second motor (301) is installed above the rotating mechanism (2), and the output end of the second motor (301) is fixedly connected to a second rotating shaft ( 302), the upper end of the second rotating shaft (302) is fixedly connected with a worm wheel (303), the side of the worm wheel (303) is meshed with a worm (304), the number of the worm (304) corresponds to that of the clamping mechanism (4), the end of the worm (304) away from the worm (304) is fixedly connected with a third rotating shaft (305), the clamping mechanism (4) comprises a clamping frame (401), the clamping frame (401) is installed above the rotating mechanism (2), the end of each of the third rotating shafts (305) away from the worm (304) is rotatably arranged on the outside of the clamping frame (401) and extends to the inside of the clamping frame (401), the end of the third rotating shaft (305) located inside the clamping frame (401) is fixedly connected with a first clamping plate (306), and the guard ring (11) to be detected is clamped by the first clamping plate (306) and the second clamping plate (407) matched therewith.

2. The automatic detection device for surface corrosion defects of a generator guard ring according to claim 1 is characterized by: The interior of the clamping frame (401) is fixedly connected to a limit slide bar (402); a movable plate (404) is arranged above the clamping frame (401); a limit slider (405) is fixedly connected to the bottom surface of the movable plate (404); the limit slider (405) is slidably connected to the surface of the limit slide bar (402); a spring (403) is inserted through the surface of the limit slide bar (402); one end of the spring (403) is fixedly connected to the inner side of the clamping frame (401); the other end of the spring (403) is fixedly connected to the side of the limit slider (405); a fourth rotating shaft (406) is rotatably connected to the inner side of the movable plate (404); and one end of the fourth rotating shaft (406) away from the movable plate (404) is fixedly connected to the second clamping plate (407).

3. The automatic detection device for surface corrosion defects of a generator guard ring according to claim 2 is characterized by: A rubber pad (408) is fixedly connected to the side of the second clamping plate (407) away from the fourth rotating shaft (406), and a rubber pad is fixedly connected to the side of the first clamping plate (306) away from the third rotating shaft (305), and a generator guard ring (11) is clamped between the two groups of rubber pads (408).

4. The automatic detection device for surface corrosion defects of a generator guard ring according to claim 1 is characterized by: The rotating mechanism (2) comprises a first motor (201), the first motor (201) is fixedly connected to the inside of the base (1), the output end of the first motor (201) is fixedly connected to a first rotating shaft (202), the upper end of the first rotating shaft (202) is passed through the inside of the base (1) and extends to the upper surface of the base (1), the upper end of the first rotating shaft (202) is fixedly connected to a rotating disk (203), the clamping frame (401) is fixedly connected to the upper surface of the rotating disk (203), and the second motor (301) is fixedly connected to the upper surface of the rotating disk (203).

5. The automatic detection device for surface corrosion defects of a generator guard ring according to claim 1 is characterized by: A frame-type protective cover (5) is fixedly connected to the upper surface of the base (1), and the spraying mechanism (6) is installed on the upper surface of the protective cover (5).

6. The automatic detection device for surface corrosion defects of a generator guard ring according to claim 5 is characterized by: The spraying mechanism (6) includes an extraction pump (601), which is fixedly connected to the upper surface of the protective cover (5), and the water suction port of the extraction pump (601) is fixedly connected to a first connecting pipe (602), and the end of the first connecting pipe (602) away from the extraction pump (601) is fixedly connected to a fluorescent agent storage box (603), and the fluorescent agent storage box (603) is fixedly connected to the upper surface of the protective cover (5), and the water outlet of the extraction pump (601) is fixedly connected to a second connecting pipe (604), and the lower end of the second connecting pipe (604) is penetrated through the upper surface of the protective cover (5) and extends to the interior of the protective cover (5), and the lower end of the second connecting pipe (604) is fixedly connected to a spray head (605).

7. The automatic detection device for surface corrosion defects of a generator guard ring according to claim 3 is characterized by: The cleaning mechanism (7) comprises a fixing rod (701), wherein the fixing rod (701) is fixedly connected to the upper surface of the base (1), and a raised erasing block (702) is fixedly connected to the upper end of the fixing rod (701), and the bottom of the raised erasing block (702) has a raised portion, and the specification of the raised portion matches the inner surface of the generator guard ring (11).

8. The automatic detection device for surface corrosion defects of a generator guard ring according to claim 5 is characterized by: The fluorescent irradiation lamp (8) is fixedly connected inside the protective cover (5); a working door (9) is provided on the front side of the protective cover (5); and a control switch (10) is fixedly connected to the front side of the protective cover (5).

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