Crack detection equipment for special equipment production

Abstract

The invention provides crack detection equipment for special equipment production, and belongs to the technical field of special equipment detection. Comprising a body, a heating assembly is arranged in the middle of the body, a grinding assembly is rotationally connected to one side of the heating assembly, the heating assembly comprises a protective cover, and a first fan is fixedly installed on the inner wall of the protective cover. When crack detection needs to be carried out, the device is put into a pipeline, then a camera photographs the inner wall, a first servo motor enables a grinding head to grind irregular positions, then chippings are sucked into a filter bag to prevent the chippings from influencing use of the pipeline, after grinding is completed, a probe carries out electromagnetic ultrasonic detection on the chippings, and the detection result is accurate. Whether cracks exist in the pipeline or not is observed, if the cracks exist, red fluorescent liquid is sprayed to the pipeline, then follow-up unified maintenance treatment is conducted, meanwhile, a second servo motor drives a first gear to rotate, and therefore the periphery of the inner wall of the pipeline can be ground through a grinding head.

Description

Technical Field

[0001] This invention relates to the field of special equipment testing technology, and in particular to a crack detection device for the production of special equipment. Background Technology

[0002] Special equipment refers to eight categories of equipment that involve life safety and pose significant risks, including boilers, pressure vessels (including gas cylinders), pressure pipelines, elevators, lifting machinery, passenger ropeways, large amusement facilities, and special-purpose motor vehicles used in factories and plants. Due to their complex operating environments and high pressure / load loads, these types of equipment are highly susceptible to major safety accidents such as explosions, collapses, and falls if defects (such as cracks or corrosion) occur. To ensure the safe operation of special equipment, the state has strict regulations governing all types of special equipment, covering production, use, and inspection, implementing comprehensive supervision throughout the entire process. Therefore, before installation and use, special equipment must undergo quality inspection to ensure safe operation.

[0003] Currently, the mainstream crack detection technology in the industry is electromagnetic ultrasonic testing. This technology has advantages such as being non-contact, requiring no coupling agent, and having deep detection depth, effectively identifying minute cracks inside and on the surface of metal pipes. However, in practical applications, it has been found that during the pipe manufacturing and welding process, the inner wall weld often has irregular structures such as protrusions, burrs, and weld slag remaining due to fluctuations in welding processes and incomplete post-weld treatment. These irregular parts can cause distortion of the electromagnetic ultrasonic wave propagation path, resulting in interference and chaotic reflections of the detection signal. This not only significantly reduces the accuracy and efficiency of crack identification but also easily leads to problems such as missed detections and false detections. At the same time, irregular surfaces may also wear down the detection probe, shortening the service life of the equipment.

[0004] Therefore, this application provides a crack detection device for special equipment manufacturing to meet the requirements. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a crack detection device for special equipment production to solve the problems of low detection efficiency, insufficient accuracy, high operating cost and high safety risk caused by irregular weld seams on the inner wall of existing pipelines.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] A crack detection device for special equipment manufacturing includes a main body, a heating component located in the middle of the main body, and a grinding component rotatably connected to one side of the heating component. The heating component includes a protective cover, a fan fixedly installed on the inner wall of the protective cover, a heating element fixedly installed at the end of the protective cover away from the fan, a fluorescent liquid tank fixedly installed at the end of the protective cover near the heating element, a partition plate fixedly installed at the center of the inner wall of the fluorescent liquid tank, water pumps fixedly installed at the upper and lower ends of the partition plate, a delivery pipe fixedly installed at the output end of the water pumps, and a nozzle fixedly installed at the other end of the delivery pipe, with the nozzle fixedly connected to the outer wall of the fluorescent liquid tank.

[0008] Optionally, the grinding assembly includes a connecting plate, a telescopic rod two is fixedly installed on the top of the connecting plate, and a protective shell is fixedly installed on the top of the telescopic rod two.

[0009] Optionally, a servo motor is fixedly installed on the inner wall of the protective shell, and a grinding head is fixedly installed on the output end of the servo motor.

[0010] Optionally, a support shell is fixedly installed at the bottom of the connecting plate, and a second fan is fixedly installed at the bottom of the support shell.

[0011] Optionally, a filter bag is fixedly inserted into the middle of the side wall of the support shell, and an exhaust pipe is sleeved on the outer wall of the filter bag, with the exhaust pipe fixedly connected to the outer wall of the support shell.

[0012] Optionally, a gear one is fixedly installed on the side of the connecting plate near the fluorescent liquid tank, a gear two is meshed on the top of the gear one, and a servo motor two is fixedly installed on the side of the gear two away from the connecting plate.

[0013] Optionally, a support column is fixedly connected to the bottom of the second servo motor, and the support column is rotatably connected to the connecting plate.

[0014] Optionally, the body includes a conical shell, which has two sets: a camera is fixedly installed on the outer wall of the left conical shell, and a probe is fixedly installed on the outer wall of the right conical shell.

[0015] Optionally, a connecting column is fixedly installed on the side of the conical shell near the connecting plate, and the connecting column is rotatably connected to the connecting plate.

[0016] Optionally, a telescopic rod is fixedly installed around the connecting column, and a roller is fixedly installed on the top of the telescopic rod.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] In the aforementioned solution, by setting up cameras and probes, the camera mounted on the left conical shell can capture the entire inner wall of the pipe in real time. Combined with the assistance of an external light source, it can clearly identify initial defects such as irregular welds even in dimly lit pipe environments, providing precise targeting for subsequent inspections. The electromagnetic ultrasonic detection technology mounted on the right probe can penetrate the polished, smooth surface to accurately identify hidden defects such as minute cracks and internal corrosion. Compared with traditional inspection methods, this significantly reduces blind spots caused by surface irregularities. Once a crack is detected, red fluorescent liquid is precisely sprayed from the fluorescent liquid tank to mark it, while green fluorescent liquid is sprayed on crack-free areas. The two-color marking clearly distinguishes areas requiring repair from those that have passed inspection. This facilitates rapid location of fault points during subsequent unified maintenance and avoids repeated inspections or missed treatments. This strengthens the safety defense line for special equipment from the production stage, effectively preventing major safety accidents such as explosions and collapses caused by crack expansion.

[0019] By incorporating a grinding assembly, the telescopic rod II can flexibly adjust its length according to the pipe's inner diameter, allowing the grinding head to precisely fit the inner wall of pipes of different sizes. Combined with the high-speed drive of the servo motor I, it can efficiently grind irregular areas such as weld protrusions and burrs, creating a smooth testing surface. This provides stable conditions for subsequent electromagnetic and ultrasonic testing, significantly improving the accuracy of the test data. Simultaneously, the fan II inside the support housing creates a negative pressure adsorption environment, which can suck metal debris generated during grinding into the filter bag in real time. This prevents debris from remaining inside the pipe and causing wear and blockage during operation, and also prevents debris from adhering to precision components such as probes and cameras, affecting the testing results. The combined design of the filter bag and exhaust pipe not only achieves centralized collection of debris but also facilitates subsequent disassembly and cleaning, reducing post-operation cleaning workload and improving overall testing efficiency. Furthermore, the servo motor II, through the meshing of gears I and II, drives the connecting plate and grinding assembly to rotate 360°, ensuring grinding around the pipe's inner wall without any blind spots, further guaranteeing the integrity of the testing coverage.

[0020] By incorporating a heating component, the heating element inside the protective cover heats up when energized, and the fan blows the hot air evenly onto the fluorescent liquid tank, achieving gentle heating of the fluorescent liquid. This prevents the fluorescent liquid from solidifying and reducing its fluidity in low-temperature environments, ensuring stable and reliable spraying function and enabling the equipment to adapt to complex operating scenarios such as severe cold. The partition plate inside the fluorescent liquid tank divides the tank into two parts, storing red and green fluorescent liquids respectively. With the precise delivery of the water pump and delivery pipe, the nozzle can achieve targeted spraying, with clear markings that are not easily faded, providing clear guidance for later maintenance. At the same time, the filter design on the outer wall of the protective cover prevents impurities from entering the heating component, extending the service life of components such as the fan and heating element, and reducing equipment maintenance costs. Attached Figure Description

[0021] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0022] Figure 1 A three-dimensional structural diagram of a crack detection device for special equipment manufacturing;

[0023] Figure 2 Rear view of a crack detection device used in the production of special equipment;

[0024] Figure 3 A schematic diagram of the heating assembly, conical shell, probe, connecting column, telescopic rod, and rollers;

[0025] Figure 4 A schematic diagram of the cross-sectional structure of the heating component, conical shell, camera, connecting column, telescopic rod, and roller;

[0026] Figure 5 A schematic diagram of the fluorescent liquid tank, partition plate, water pump, delivery pipe and nozzle structure;

[0027] Figure 6 A schematic diagram of the grinding components, conical shell, camera, connecting column, telescopic rod, and roller structure;

[0028] Figure 7 This is a schematic diagram showing the disassembled structure of the telescopic rod 2, servo motor 1, protective shell, and grinding head;

[0029] Figure 8 A schematic diagram showing the disassembled structure of the support shell, fan 2, filter bag, and exhaust pipe.

[0030] Figure label:

[0031] 100. Main body; 101. Conical shell; 102. Camera; 103. Probe; 104. Connecting post; 105. Telescopic rod one; 106. Roller;

[0032] 110. Heating assembly; 111. Protective cover; 112. Fan 1; 113. Heating element; 114. Fluorescent liquid tank; 115. Divider plate; 116. Water pump; 117. Delivery pipe; 118. Nozzle;

[0033] 120. Grinding assembly; 121. Connecting disc; 122. Telescopic rod II; 123. Protective shell; 124. Servo motor I; 125. Grinding head; 126. Support shell; 127. Fan II; 128. Filter bag; 129. Exhaust pipe; 130. Gear I; 131. Gear II; 132. Servo motor II; 133. Support column.

[0034] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0035] The present invention provides a crack detection device for special equipment production, which is described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can also use other alternative methods to implement some well-known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0036] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0037] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0038] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0039] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0040] like Figures 1 to 8As shown, an embodiment of the present invention provides a crack detection device for special equipment production, including a body 100. A heating component 110 is provided in the middle of the body 100, and a grinding component 120 is rotatably connected to one side of the heating component 110. The heating component 110 includes a protective cover 111. A fan 112 is fixedly installed on the inner wall of the protective cover 111. A heating element 113 is fixedly installed at the end of the protective cover 111 away from the fan 112. A fluorescent liquid tank 114 is fixedly installed at the end of the protective cover 111 near the heating element 113. A partition plate 115 is fixedly installed at the center of the inner wall of the fluorescent liquid tank 114. A water pump 116 is fixedly installed at both ends of the partition plate 115. A delivery pipe 117 is fixedly installed at the output end of the water pump 116, and the other end of the delivery pipe 117 is fixed to... A nozzle 118 is installed and fixedly connected to the outer wall of the fluorescent liquid tank 114. The polishing assembly 120 includes a connecting plate 121. A telescopic rod 122 is fixedly installed on the top of the connecting plate 121. A protective shell 123 is fixedly installed on the top of the telescopic rod 122. A servo motor 124 is fixedly installed on the inner wall of the protective shell 123. A grinding head 125 is fixedly installed at the output end of the servo motor 124. A support shell 126 is fixedly installed at the bottom of the connecting plate 121. A fan 127 is fixedly installed at the bottom of the support shell 126. A filter bag 128 is fixedly inserted into the middle of the side wall of the support shell 126. An exhaust pipe 129 is sleeved on the outer wall of the filter bag 128 and fixedly connected to the outer wall of the support shell 126. The connecting plate 121 is close to the fluorescent liquid tank 114. Gear 130 is fixedly installed on one side of the 14th plate. Gear 131 meshes with the top of gear 130. Servo motor 132 is fixedly installed on the side of gear 131 away from the connecting plate 121. A support column 133 is fixedly connected to the bottom of servo motor 132. The support column 133 is rotatably connected to the connecting plate 121. The outer wall of the protective cover 111 is equipped with a filter screen. Fan 112 is connected to an external power supply for power supply. After the heating element 113 is powered on and heats up, the fan 112 blows air to dissipate heat and blows hot air into the fluorescent liquid tank 114, thereby heating the fluorescent liquid in the fluorescent liquid tank 114 to prevent the fluorescent liquid from freezing and affecting normal use in low temperature and severe weather. The partition plate 115 divides the fluorescent liquid tank 114 into two parts, and each part is equipped with a red... The fluorescent liquid is colored and green to mark areas inside the pipe that require maintenance or have been inspected. Pump 116 delivers the fluorescent liquid to nozzle 118 via delivery pipe 117. Connecting plate 121 is rotatably connected to conical shell 101, allowing servo motor 132 to drive gear 131, which in turn drives gear 130, causing connecting plate 121 to rotate telescopic rod 122. This allows grinding head 125 to polish the inner wall of the pipe. Support column 133 supports and fixes servo motor 132, enabling it to drive washing wheel 2. When left-side camera 102 takes a picture of the inner wall of the pipe, if irregularities are observed, the telescopic rod lifts protective shell 123.The grinding head 125 is brought into contact with the inner wall of the pipe. Then, servo motor 124 operates, causing the grinding head 125 to grind irregular areas of the pipe's inner wall. Fan 127 then starts working, sucking the ground debris into filter bag 128 for later processing and to prevent the debris from affecting pipe use. After grinding, roller 106 operates, moving probe 103 to the ground area for electromagnetic ultrasonic testing to check for cracks. If cracks are found, they are marked with red fluorescent liquid for later maintenance. If no cracks are found, they are marked with green fluorescent liquid to prevent interference with crack detection during later treatment.

[0041] like Figures 1 to 6 As shown, the main body 100 includes a conical shell 101, which has two sets. A camera 102 is fixedly installed on the outer wall of the left conical shell 101, and a probe 103 is fixedly installed on the outer wall of the right conical shell 101. A connecting post 104 is fixedly installed on the side of the conical shell 101 near the connecting plate 121. The connecting post 104 is rotatably connected to the connecting plate 121. A telescopic rod 105 is fixedly installed around the connecting post 104, and a roller 106 is fixedly installed on the top of the telescopic rod 105. The camera 102 and the probe 103 are fixedly installed on the two sets of conical shells 101 respectively, so as to facilitate... The inner wall of the pipe can be photographed and observed before electromagnetic ultrasonic detection is performed. At the same time, a light source is installed on the outside of the conical shell 101 to facilitate the operation of the camera 102 and the probe 103. There are also two sets of connecting columns 104. The left connecting column 104 is rotatably connected to the connecting plate 121, and the right connecting column 104 is fixedly connected to the protective cover 111. The roller 106 is a power wheel driven by a built-in servo motor, which can move the device inside the pipe. At the same time, a telescopic rod 105 is fixedly connected between the top of the roller 106 and the connecting column 104, so that it can work in pipes of different sizes.

[0042] The working principle of the technical solution provided by this invention is as follows:

[0043] When crack detection is required inside a stress-prone pipe, the device is first placed inside the pipe. Then, the drive roller 106 moves the device inside the pipe, and the camera 102 takes pictures of the inner wall of the pipe. When an irregular position is observed, the telescopic rod lifts the protective shell 123, causing the abrasive head 125 to contact the inner wall of the pipe. Then, the servo motor 124 operates, causing the abrasive head 125 to grind the irregular area of ​​the inner wall of the pipe. Then, the fan 127 starts working, sucking the grinding debris into the filter bag 128 for later processing and to prevent the debris from affecting the use of the pipe. After grinding is completed, the roller 106 operates, moving the probe 103 to the grinding area to perform electromagnetic ultrasonic detection to observe whether there are cracks in the pipe. If cracks are found, red light is sprayed onto them. The fluorescent liquid is used for marking, and then uniform maintenance is carried out. If no cracks are found, green fluorescent liquid is sprayed to mark them to prevent the judgment from being affected when dealing with cracks later. At the same time, servo motor 132 can drive gear 131 to rotate, and gear 131 drives gear 130 to rotate, so that connecting plate 121 drives telescopic rod 122 to rotate. Then, the grinding head 125 can grind the inner wall of the pipe. When in low temperature or other harsh weather, in order to prevent the fluorescent liquid from affecting normal use, the heating element 113 can be energized to heat up, and then fan 112 blows air to dissipate heat, blowing hot air into the fluorescent liquid tank 114, thereby heating the fluorescent liquid in the fluorescent liquid tank 114 to prevent the fluorescent liquid from freezing and affecting normal use in low temperature and harsh weather.

[0044] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0045] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A crack detection apparatus for special equipment production, characterized by, Including the main body (100), the heating assembly (110) is provided with in the main body (100) middle position, one side of the heating assembly (110) is rotatably connected with the polishing assembly (120); The heating assembly (110) includes a protective cover (111), a fan one (112) is fixedly installed on the inner wall of the protective cover (111), a heating sheet (113) is fixedly installed on the end away from the fan one (112) of the protective cover (111), a fluorescent liquid bin (114) is fixedly installed on the end close to the heating sheet (113) of the protective cover (111), a partition plate (115) is fixedly installed on the inner wall of the fluorescent liquid bin (114) at the center of the circle, a water pump (116) is fixedly installed on the upper and lower ends of the partition plate (115), a conveying pipe (117) is fixedly installed on the output end of the water pump (116), a spray head (118) is fixedly installed on the other end of the conveying pipe (117), and the spray head (118) is fixedly connected with the outer wall of the fluorescent liquid bin (114).

2. The crack detection apparatus for special equipment production according to claim 1, characterized by, The polishing assembly (120) includes a connecting disc (121), and a second telescopic rod (122) is fixedly installed on the top of the connecting disc (121).

3. The crack detection apparatus for special equipment production according to claim 2, characterized by, A protective shell (123) is fixedly installed on the top of the second telescopic rod (122).

4. The crack detection apparatus for special equipment production according to claim 2, characterized by, A servo motor one (124) is fixedly installed on the inner wall of the protective shell (123), and a sanding head (125) is fixedly installed on the output end of the servo motor one (124).

5. The crack detection apparatus for special equipment production according to claim 4, characterized by, A support shell (126) is fixedly installed on the bottom of the connecting disc (121).

6. The crack detection apparatus for special equipment production according to claim 1, characterized by A filter bag (128) is fixedly inserted into the middle position of the side wall of the support shell (126), and an exhaust pipe (129) is sleeved on the outer wall of the filter bag (128), and the exhaust pipe (129) is fixedly connected with the outer wall of the support shell (126).

7. The crack detection apparatus for special equipment production according to claim 6, characterized by A gear one (130) is fixedly installed on the side close to the fluorescent liquid bin (114) of the connecting disc (121), a gear two (131) is engaged on the top of the gear one (130), and a servo motor two (132) is fixedly installed on the side away from the connecting disc (121) of the gear two (131).

8. The crack detection apparatus for special equipment production according to claim 1, characterized by, A support column (133) is fixedly connected to the bottom of the servo motor two (132), and the support column (133) is rotatably connected with the connecting disc (121).

9. The crack detection apparatus for special equipment production according to claim 8, characterized by, The main body (100) includes two tapered shells (101), a camera (102) is fixedly installed on the outer wall of the left tapered shell (101), and a probe (103) is fixedly installed on the outer wall of the right tapered shell (101).

10. The crack detection apparatus for special equipment production according to claim 9, characterized by A connecting column (104) is fixedly installed on the side close to the connecting disc (121) of the tapered shell (101), and the connecting column (104) is rotatably connected with the connecting disc (121). A first telescopic rod (105) is fixedly installed around the connecting column (104), and a roller (106) is fixedly installed on the top of the first telescopic rod (105).

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