An automatic detection device for apparent defects of steam pipeline

Abstract

The present application provides a kind of steam pipeline apparent defect automated detection device, belong to pipeline detection field.The present application is driven by the first rotating mechanism, and the design of the spray head is sprayed water to the radial outside of its revolution, and the design of the photographing component, the air blowing component and the cleaning component are sequentially arranged in the same circumferential direction, the second rotating mechanism drives the photographing component, the air blowing component and the cleaning component rotate around the central axis of the walking mechanism, the dust and slag at the weld are cleaned, the accuracy of detection is improved, the problem of dust and slag in steam pipeline affecting the accuracy of apparent defect detection is solved.The steam pipeline apparent defect automated detection device comprises: water spraying mechanism, walking mechanism, photographing mechanism, first rotating mechanism and second rotating mechanism;The first rotating mechanism is installed at the front end of the walking mechanism, and the second rotating mechanism is installed at the rear end of the walking mechanism.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of pipeline detection, in particular to a kind of steam pipeline apparent defect automation detection device. BACKGROUND

[0002] After heating steam pipeline is buried in the ground, it needs to detect whether the weld between two pipes has crack, which needs a device that can take pictures from inside the pipeline, but because of the existence of dust and welding slag in the heating steam pipeline, it will affect the clarity of the picture, so a detection device that can eliminate the influence of dust and welding slag is needed. SUMMARY

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the present application is to provide a kind of steam pipeline apparent defect automation detection device, to solve the problem of dust and welding slag affecting the accuracy of steam pipeline apparent defect detection in the prior art.

[0004] To achieve the above-mentioned purpose and other related purposes, the present application provides a kind of steam pipeline apparent defect automation detection device, the steam pipeline apparent defect automation detection device includes: water spraying mechanism, walking mechanism, photographing mechanism, first rotating mechanism and second rotating mechanism;

[0005] The first rotating mechanism is installed at the front end of the walking mechanism, the water spraying mechanism includes a spray head, a rotatable water pipe joint, a water pump and a water tank, the water pump is communicated with the water tank at the water pumping end, the rotatable water pipe joint is communicated with the water outlet end of the water pump and the spray head, the water tank is installed in the walking mechanism, the spray head is installed on the first rotating mechanism, the first rotating mechanism drives the spray head to revolve around the central axis of the walking mechanism, and the spray head sprays water to the outside of the radial direction of revolution;

[0006] The second rotating mechanism is installed at the rear end of the walking mechanism, the photographing mechanism includes a photographing component, a blowing component, a cleaning component and a rotatable electrical connector, the photographing component, the blowing component and the cleaning component are all installed on the outer wall of the second rotating mechanism and arranged in the same circumferential direction around the central axis of the walking mechanism, the second rotating mechanism drives the photographing component, the blowing component and the cleaning component to revolve around the central axis of the walking mechanism, the irradiation end of the photographing component, the blowing end of the blowing component and the cleaning end of the cleaning component all point to the outside of the radial direction of revolution, the rotatable electrical connector is installed in the second rotating mechanism and connected with the photographing component and the blowing component, and the rotation axis of the rotatable electrical connector is on the central axis of the walking mechanism.

[0007] Optionally, the water spraying mechanism further comprises a first water pipe and a second water pipe; the first rotating mechanism comprises a first power member, a first driving gear, a first driven cylinder, a first fixed cylinder and a first cover plate, the first driven cylinder, the first fixed cylinder and the walking mechanism share a central axis, a first gear ring is arranged on the inner wall of the first driven cylinder between the two ends in the circumferential direction, the first driving gear and the first gear ring are engaged, one end of the first fixed cylinder is fixedly installed at the front end of the walking mechanism, the other end of the first fixed cylinder and one end of the first driven cylinder are rotationally connected, the other end of the first driven cylinder is provided with the detachable first cover plate, the first power member is fixedly installed in the first fixed cylinder, the first power member drives the first driving gear to rotate so as to drive the first gear ring to rotate, and the rotation of the first gear ring drives the first driven cylinder to rotate;

[0008] The water outlet of the water pump and one end of the first water pipe are communicated, the other end of the first water pipe and one end of the second water pipe are rotationally connected through the rotatable water pipe joint, the rotation axis of the rotatable water pipe joint is on the central axis of the first driven cylinder, the central axis of the first water pipe and the central axis of the first driven cylinder are collinear and perpendicular to the central axis of the second water pipe, and the other end of the second water pipe penetrates through the non-gear ring part of the first driven cylinder.

[0009] Optionally, the second rotating mechanism comprises a second driving gear, a second driven cylinder, a second fixed cylinder, a second power member, a second cover plate and a fixed cover, the second driven cylinder, the second fixed cylinder and the walking mechanism share a central axis, a second gear ring is arranged on the inner wall of the second driven cylinder between the two ends, the second driving gear and the second gear ring are engaged, one end of the second fixed cylinder is fixedly connected with the rear end of the walking mechanism, the other end of the second fixed cylinder and one end of the second driven cylinder are rotationally connected, the other end of the second driven cylinder is provided with the detachable second cover plate, the fixed cover is rotationally installed on the second cover plate, the second power member is fixedly installed in the second fixed cylinder, the second power member drives the second driving gear to rotate so as to drive the second gear ring to rotate, and the rotation of the second gear ring drives the second driven cylinder to rotate;

[0010] The photographing component, the blowing component and the cleaning component are fixedly installed on the outer wall of the second driven cylinder in sequence, one end of the rotatable electrical connector is fixedly connected with the second fixed cylinder, the other end of the rotatable electrical connector is fixedly connected with the fixed cover, the rotatable electrical connector comprises a rotating interface, the rotating interface is located between the two ends of the rotatable electrical connector and is connected to the non-gear ring part of the second driven cylinder and rotates with the second driven cylinder.

[0011] Optionally, the cleaning component comprises a brush, a connecting rod, a first bevel gear and a second bevel gear; the central axis of the first bevel gear and the rotation axis of the second driven cylinder are collinear, the first bevel gear and the second bevel gear are both located in the second driven cylinder, one end of the first bevel gear is fixedly connected with the other end of the rotatable electrical connector, the other end of the first bevel gear is engaged with the second bevel gear, the central axis of the second bevel gear is perpendicular to the central axis of the first bevel gear, one end of the connecting rod is fixedly connected with the second bevel gear in the circumferential direction, the other end of the connecting rod passes through the non-toothed ring part of the second driven cylinder and is provided with the brush; the rotation of the second driven cylinder drives the revolution of the connecting rod and the second bevel gear, the first bevel gear drives the rotation of the second bevel gear, and the rotation of the second bevel gear drives the rotation of the connecting rod and the brush.

[0012] Optionally, the walking mechanism comprises a plurality of walking components, a plurality of mounting frames and a mounting box, the walking components and the mounting frames correspond to each other, the walking component comprises a traction member and a traction motor, the walking component is mounted on the mounting frame, the mounting frame is fixedly mounted on the outer wall of the mounting box, the traction motor drives the traction member to move, the movement of the traction member drives the movement of the mounting box, and the movement of the mounting box drives the movement of the water spraying mechanism, the photographing mechanism, the first rotating mechanism and the second rotating mechanism.

[0013] Optionally, the walking mechanism further comprises a plurality of telescopic components, one telescopic component corresponds to one mounting frame, each telescopic component comprises a first connecting rod, a second connecting rod, a sliding block and a telescopic member, one end of the first connecting rod is rotatably mounted on the traction member, the other end of the first connecting rod is rotatably connected with the corresponding mounting frame, one end of the second connecting rod is rotatably mounted on the traction member at a different position, the other end of the second connecting rod is rotatably connected with the sliding block, the sliding block is slidingly fitted with the mounting frame, the telescopic end of the telescopic member is fixedly connected with the sliding block, and the fixed end of the telescopic member is mounted on the mounting frame; with the extension and retraction of the telescopic member, the sliding block slides along the length direction of the mounting frame, the sliding of the sliding block drives the rotation of the second connecting rod about the rotation connection point of the second connecting rod and the sliding block, the rotation of the second connecting rod drives the rotation of the first connecting rod about the rotation connection point of the first connecting rod and the mounting frame, and the rotation of the first connecting rod and the second connecting rod drives the traction member to move away from or close to the outer wall of the mounting box.

[0014] Optionally, the telescopic component further comprises a third connecting rod and a damping spring, one end of the first connecting rod and one end of the third connecting rod are rotatably connected to two ends of the traction member respectively, the other end of the third connecting rod is rotatably connected to the mounting frame, the length direction of the first connecting rod and the length direction of the third connecting rod are parallel to each other, the second connecting rod is rotatably connected to the middle part of the traction member, the rotation of the second connecting rod drives the first connecting rod and the third connecting rod to rotate around their own rotation connection points and the rotation connection point of the mounting frame respectively, and the damping spring is installed on the second connecting rod and the telescopic end of the telescopic member.

[0015] Optionally, a sandwich layer is arranged in the mounting box, the water tank is located in the sandwich layer, and the water pump is installed in the mounting box, and the water pumping end of the water pump communicates with the water tank through the inner wall of the mounting box.

[0016] Optionally, a ring groove is arranged on the outer wall of the second fixed cylinder, at least one radial locking pin is arranged on the outer wall of the second driven cylinder, the radial locking pin penetrates from the outer wall of the second driven cylinder to the inner wall in the radial direction, the radial locking pin and the ring groove are in sliding fit, a bearing is arranged between the inner wall of the second driven cylinder and the outer wall of the second fixed cylinder, and a sealing ring is arranged at the abutting position of the front end of the second driven cylinder and the second fixed cylinder.

[0017] A use method of the steam pipeline apparent defect automatic detection device described above comprises the following steps:

[0018] S1: turn on the power supply, and the detection device enters the steam pipeline;

[0019] S2: the spray head moves to the weld joint along with the walking mechanism, the walking mechanism stops moving, the first rotating mechanism drives the spray head to rotate, and the spray head sprays water to the weld joint to remove dust and welding slag;

[0020] S3: the walking mechanism continues to move forward until the photographing mechanism reaches the weld joint cleaned in the previous step, the second rotating mechanism drives the cleaning component, the blowing component and the photographing component to rotate, the cleaning component cleans the residual dust and welding slag at the weld joint, the blowing component blows away the water, dust and welding slag at the weld joint, and the photographing component photographs the real picture of the weld joint;

[0021] S4: the walking mechanism continues to move forward until the next weld joint, and the above steps are repeated.

[0022] As described above, the steam pipeline apparent defect automatic detection device has at least the following beneficial effects:

[0023] 1. The first rotating mechanism drives the radial outer side of the nozzle to spray water, which achieves the purpose of cleaning the slag and dust at the weld, and the photographing component, the blowing component and the cleaning component are arranged in the same circumferential direction in sequence, and the second rotating mechanism drives the photographing component, the blowing component and the cleaning component to rotate around the central axis of the walking mechanism, so that the dust and slag at the weld are cleaned and then photographed, and the detection accuracy is further improved.

[0024] 2. The brush, the connecting rod, the first bevel gear and the second bevel gear are designed to realize the revolution of the brush around the central axis of the walking mechanism while the brush also rotates itself, so that the cleaning effect of the dust at the weld is better, the photographed picture is clearer, and the detection data is more accurate.

[0025] 3. The telescopic component is designed to realize the function of the walking mechanism adapting to steam pipes with different diameters, and the third connecting rod and the damping spring are designed to enhance the adaptability of the walking mechanism to the inner wall of the steam pipe with ups and downs. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is shown as a schematic diagram of a steam pipe apparent defect automatic detection device.

[0027] Figure 2 It is shown as an internal schematic diagram of the water spraying mechanism and the first rotating mechanism.

[0028] Figure 3 It is shown as a schematic diagram of the walking mechanism (only one walking component is shown).

[0029] Figure 4 It is shown as an internal schematic diagram of the photographing mechanism and the second rotating mechanism.

[0030] Figure 5 It is shown as a connection schematic diagram between the second fixed cylinder and the second driven cylinder.

[0031] ELEMENT NUMBER EXPLANATION

[0032] Water spraying mechanism 1, water spraying head 11, rotatable water pipe joint 12, water pump 13, water tank 14, first water pipe 15, second water pipe 16, walking mechanism 2, walking part 21, traction part 211, traction motor 212, mounting frame 22, mounting box 23, telescopic part 24, first connecting rod 241, second connecting rod 242, sliding block 243, telescopic part 244, third connecting rod 245, damping spring 246, photographing mechanism 3, photographing part 31, camera 311, illuminating lamp 312, air blowing part 32, cleaning part 33, brush 331, connecting rod 332, first bevel gear 333, second bevel gear 334, rotatable electric appliance joint 34, rotating interface 341, first rotating mechanism 4, first power part 41, first driving gear 42, first driven cylinder 43, first gear ring 431, first fixed cylinder 44, first cover plate 45, second rotating mechanism 5, second driving gear 51, second driven cylinder 52, second gear ring 521, radial pin 522, sealing ring 523, second fixed cylinder 53, ring groove 531, second power part 54, second cover plate 55, fixed cover 56, bearing 57, sealing ring 58. Embodiments

[0033] The following describes the embodiments of the present application by specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the specification.

[0034] Please refer to Figures 1 to 5 It should be understood that the structures, proportions, sizes, etc. shown in the drawings of the specification are only used to understand and read the content disclosed in the specification by those skilled in the art, and do not define the limiting conditions for the implementation of the present application, so they do not have technical significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope covered by the disclosed technical content of the present application. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" used in the specification are only for the convenience of clear description, and are not used to limit the scope of the implementation of the present application. The change or adjustment of the relative relationship, without substantially changing the technical content, is also considered as the implementation scope of the present application.

[0035] The following examples are only for illustration. The various embodiments can be combined, which are not limited to the content shown in the following single embodiment.

[0036] Please refer to Figure 1 The present application provides a kind of steam pipeline apparent defect automatic detection device, the steam pipeline apparent defect automatic detection device includes: water spraying mechanism 1, walking mechanism 2, photographing mechanism 3, first rotating mechanism 4 and second rotating mechanism 5;

[0037] The first rotating mechanism 4 is installed at the front end of the walking mechanism 2, the water spraying mechanism 1 comprises a spraying head 11, a rotatable water pipe joint 12, a water pump 13 and a water tank 14, the water pump 13 is connected with the water tank 14 at the water pumping end, the rotatable water pipe joint 12 is connected with the water pump 13 at the water outlet end and the spraying head 11, the water tank 14 is installed in the walking mechanism 2, the spraying head 11 is installed on the first rotating mechanism 4, the first rotating mechanism 4 drives the spraying head 11 to revolve around the central axis of the walking mechanism 2, the spraying head 11 sprays water to the radial direction outside the revolving direction, when the spraying head 11 reaches the position of the weld, the spraying head 11 sprays water to the weld, and the water flow removes the welding slag and dust;

[0038] The second rotating mechanism 5 is installed at the rear end of the walking mechanism 2, the photographing mechanism 3 comprises a photographing part 31, a blowing part 32, a cleaning part 33 and a rotatable electric appliance joint 34, the photographing part 31, the blowing part 32 and the cleaning part 33 are installed on the outer wall of the second rotating mechanism 5 and arranged in the same circumferential direction around the central axis of the walking mechanism 2, the second rotating mechanism 5 drives the photographing part 31, the blowing part 32 and the cleaning part 33 to revolve around the central axis of the walking mechanism 2, the photographing end of the photographing part 31, the blowing end of the blowing part 32 and the cleaning end of the cleaning part 33 all point to the radial direction outside the revolving direction, the rotatable electric appliance joint 34 is installed in the second rotating mechanism 5 and connected with the photographing part 31 and the blowing part 32, the rotating axis of the rotatable electric appliance joint 34 is on the central axis of the walking mechanism 2, the cleaning part 33 further removes the welding slag and dust at the weld, the blowing part 32 is an electric heater, the electric heater part removes the welding slag and dust at the weld, and also removes the water sprayed by the spraying head 11, after the above steps, the photographing part 31 photographs the weld, and the detection result is more accurate, the photographing part 31 comprises a camera 311 and an illuminating lamp 312, the illuminating lamp 312 is installed on both sides of the camera 311.

[0039] In this embodiment, the photographing end of the camera 311 and the blowing end of the blowing part 32 point to the same point, so that the influence of the water vapor on the detection result is further reduced, which is not shown in the figure.

[0040] In this embodiment, please refer to Figure 1 and Figure 2The water spraying mechanism 1 further comprises a first water pipe 15 and a second water pipe 16; the first rotating mechanism 4 comprises a first power piece 41, a first driving gear 42, a first driven cylinder 43, a first fixed cylinder 44 and a first cover plate 45, the first driven cylinder 43, the first fixed cylinder 44 and the walking mechanism 2 share a common axis, a first gear ring 431 is arranged on the circumferential surface between the two ends of the inner wall of the first driven cylinder 43, the first driving gear 42 and the first gear ring 431 are in engagement, one end of the first fixed cylinder 44 is fixedly installed at the front end of the walking mechanism 2, the other end of the first fixed cylinder 44 and one end of the first driven cylinder 43 are rotationally connected, the other end of the first driven cylinder 43 is provided with the first cover plate 45 which can be detached, the first cover plate 45 can be detached to facilitate the maintenance of the rotating mechanism, the first power piece 41 is fixedly installed in the first fixed cylinder 44, the first power piece 41 drives the first driving gear 42 to rotate so as to drive the first gear ring 431 to rotate, the rotation of the first gear ring 431 drives the first driven cylinder 43 to rotate;

[0041] The water outlet end of the water pump 13 and one end of the first water pipe 15 are in communication, the other end of the first water pipe 15 and one end of the second water pipe 16 are rotationally connected through the rotatable water pipe joint 12, the rotation axis of the rotatable water pipe joint 12 is on the common axis of the first driven cylinder 43, the common axis of the first water pipe 15 and the common axis of the first driven cylinder 43 are collinear and perpendicular to the common axis of the second water pipe 16, the other end of the second water pipe 16 penetrates through the non-gear ring part of the first driven cylinder 43, the spray head 11 is installed on the other end of the second water pipe 16, the rotatable water pipe joint 12 ensures that the first water pipe 15 and the second water pipe 16 rotate on the axes perpendicular to each other while the water flow can smoothly flow in the two water pipes.

[0042] In this embodiment, please refer to Figure 1 and Figure 4The second rotating mechanism 5 comprises a second driving gear 51, a second driven cylinder 52, a second fixed cylinder 53, a second power element 54, a second cover plate 55 and a fixed cover 56. The second driven cylinder 52, the second fixed cylinder 53 and the walking mechanism 2 share a common axis. A second gear ring 521 is arranged between the two ends of the inner wall of the second driven cylinder 52. The second driving gear 51 and the second gear ring 521 are engaged. One end of the second fixed cylinder 53 is fixedly connected with the rear end of the walking mechanism 2. The other end of the second fixed cylinder 53 is rotatably connected with one end of the second driven cylinder 52. The other end of the second driven cylinder 52 is provided with the second cover plate 55 which can be detached. The fixed cover 56 is rotatably installed on the second cover plate 55. The second power element 54 is fixedly installed in the second fixed cylinder 53. The second power element 54 drives the second driving gear 51 to rotate, thereby driving the second gear ring 521 to rotate. The rotation of the second gear ring 521 drives the second driven cylinder 52 to rotate automatically.

[0043] The photographing component 31, the blowing component 32 and the cleaning component 33 are fixedly installed on the outer wall of the second driven cylinder 52 in sequence. One end of the rotatable electric connector 34 is fixedly connected with the second fixed cylinder 53. The other end of the rotatable electric connector 34 is fixedly connected with the fixed cover 56. The rotatable electric connector 34 comprises a rotating interface 341 which is located between the two ends of the rotatable electric connector 34, accesses the non-gear ring part of the second driven cylinder 52 and rotates automatically with the second driven cylinder 52. By detaching the second cover plate 55, the inside of the second rotating mechanism 5 can be repaired. An external power supply passes through the fixed cover 56 to supply power to the entire device.

[0044] In this embodiment, please refer to Figure 4The cleaning component 33 comprises a brush 331, a connecting rod 332, a first bevel gear 333 and a second bevel gear 334; the central axis of the first bevel gear 333 is collinear with the rotation axis of the second driven cylinder 52, the first bevel gear 333 and the second bevel gear 334 are both located in the second driven cylinder 52, one end of the first bevel gear 333 is fixedly connected with the other end of the rotatable electric connector 34, the other end of the first bevel gear 333 is engaged with the second bevel gear 334, the central axis of the second bevel gear 334 is perpendicular to the central axis of the first bevel gear 333, one end of the connecting rod 332 is fixedly connected with the second bevel gear 334 in the circumferential direction, the other end of the connecting rod 332 passes through the non-toothed ring part of the second driven cylinder 52 and is provided with the brush 331; the rotation of the second driven cylinder 52 drives the revolution of the connecting rod 332 and the second bevel gear 334, the first bevel gear 333 drives the rotation of the second bevel gear 334, the connecting rod 332 rotates together with the brush 331 along with the rotation of the second bevel gear 334, which is equivalent to the rotation of the second bevel gear 334 along with the rotation of the second driven cylinder 52 to drive the rotation of the brush 331, one output end of the second driving gear 51 corresponds to the two input ends of the second driven cylinder 52 and the second bevel gear 334, and the rotation of the brush 331 can clean the welding slag and dust at the weld more thoroughly.

[0045] In this embodiment, please refer to Figure 3 The walking mechanism 2 comprises a plurality of walking components 21, a plurality of mounting frames 22 and a mounting box 23, the walking components 21 and the mounting frames 22 are in one-to-one correspondence, the walking components 21 comprise traction members 211 and traction motors 212, the walking components 21 are mounted on the mounting frames 22, the mounting frames 22 are fixedly mounted on the outer wall of the mounting box 23, the traction motors 212 drive the traction members 211 to move, the traction members 211 drive the mounting box 23 to move, and the mounting box 23 drives the water spraying mechanism 1, the photographing mechanism 3, the first rotating mechanism 4 and the second rotating mechanism 5 to move. Here, an example of a scheme for realizing the walking function of the device is given, but it is not the only scheme.

[0046] In this embodiment, please refer to Figure 3, the walking mechanism 2 further comprises a plurality of telescopic components 24, one of the telescopic components 24 corresponds to one of the mounting frames 22, each of the telescopic components 24 comprises a first connecting rod 241, a second connecting rod 242, a sliding block 243 and a telescopic component 244, one end of the first connecting rod 241 is rotatably installed on the traction component 211, the other end of the first connecting rod 241 is rotatably connected with the corresponding mounting frame 22, one end of the second connecting rod 242 is rotatably installed on the traction component 211 at a different position, the other end of the second connecting rod 242 is rotatably connected with the sliding block 243, the sliding block 243 is slidably fitted with the mounting frame 22, the telescopic end of the telescopic component 244 is fixedly connected with the sliding block 243, the fixed end of the telescopic component 244 is installed on the mounting frame 22, with the extension and retraction of the telescopic component 244, the sliding block 243 slides along the length direction of the mounting frame 22, the sliding of the sliding block 243 drives the rotation of the second connecting rod 242 around the rotation connection point of the second connecting rod 242 and the sliding block 243, the rotation of the second connecting rod 242 drives the rotation of the first connecting rod 241 around the rotation connection point of the first connecting rod 241 and the mounting frame 22 through the traction component 211, the rotation of the first connecting rod 241 and the second connecting rod 242 drives the traction component 211 to move away from or close to the outer wall of the mounting box 23, the design of the telescopic component 244 realizes the function of the walking mechanism 2 adapting to steam pipelines with different diameters.

[0047] In this embodiment, please refer to Figure 3 , the telescopic component 24 further comprises a third connecting rod 245 and a shock-absorbing spring 246, one end of the first connecting rod 241 and one end of the third connecting rod 245 are rotatably connected with two ends of the traction component 211 respectively, the other end of the third connecting rod 245 is rotatably connected with the mounting frame 22, the length direction of the first connecting rod 241 and the length direction of the third connecting rod 245 are parallel to each other, the second connecting rod 242 is rotatably connected with the middle part of the traction component 211, the rotation of the second connecting rod 242 drives the rotation of the first connecting rod 241 and the third connecting rod 245 around their own rotation connection points with the mounting frame 22 through the traction component 211; the shock-absorbing spring 246 is installed on the second connecting rod 242 and the telescopic end of the telescopic component 244, the design of the shock-absorbing mechanism can better protect the whole device, even if there are some protrusions caused by welding slag in the steam pipeline, the device can also pass through smoothly, the design of the third connecting rod 245 enhances the stability of the whole device when walking.

[0048] In this embodiment, please refer to Figure 2The installation box 23 is provided with a sandwich layer, the water tank 14 is located in the sandwich layer, and the water pump 13 is installed in the installation box 23, and the water pumping end of the water pump 13 communicates through the inner wall of the installation box 23 and the water tank 14. The design of the water tank 14 fully utilizes the space of the whole device, and of course other schemes can also be adopted.

[0049] In this embodiment, referring to Figure 5 The rotating connection mode of the first fixed cylinder 44 and the first driven cylinder 43 is the same as that of the second fixed cylinder 53 and the second driven cylinder 52, and only the connection relationship between the second fixed cylinder 53 and the second driven cylinder 52 is shown in the drawing, so the connection relationship between the second fixed cylinder 53 and the second driven cylinder 52 is also described here. A ring groove 531 is arranged on the outer wall of the second fixed cylinder 53, and at least one radial pin 522 is arranged on the outer wall of the second driven cylinder 52, the radial pin 522 penetrates from the outer wall of the second driven cylinder 52 to the inner wall in the radial direction, the radial pin 522 and the ring groove 531 are in sliding fit, a bearing 57 is arranged between the inner wall of the second driven cylinder 52 and the outer wall of the second fixed cylinder 53, and a sealing ring 58 is arranged at the abutting position of the front end of the second driven cylinder 52 and the second fixed cylinder 53. By rotating the radial pin 522, the radial pin 522 is controlled to stretch and retract in the radial direction of the second driven cylinder 52, so that the second driven cylinder 52 and the second fixed cylinder 53 are fixed in the axial direction, and a sealing ring 523 is further arranged between the radial pin 522 and the outer wall of the second driven cylinder 52.

[0050] In this embodiment, referring to Figure 1 The application provides a use method of the steam pipeline apparent defect automatic detection device, and the use method comprises the following steps:

[0051] S1: power is turned on, and the detection device enters the steam pipeline;

[0052] S2: the spray head 11 moves to the weld joint along with the walking mechanism 2, the walking mechanism 2 stops moving, the first rotating mechanism 4 drives the spray head 11 to rotate, and the spray head 11 sprays water to the weld joint to remove dust and welding slag;

[0053] S3: the walking mechanism 2 continues to move until the photographing mechanism 3 reaches the weld joint cleaned in the previous step, the second rotating mechanism 5 drives the cleaning component 33, the blowing component 32 and the photographing component 31 to rotate, the cleaning component 33 sweeps the dust and welding slag remaining at the weld joint, the blowing component 32 blows away the water, dust and welding slag at the weld joint, and the photographing component 31 photographs the real picture of the weld joint;

[0054] S4: the walking mechanism 2 continues to move forward until the next welding seam, and the above steps are repeated.

[0055] In summary, the present application drives the spray head 11 to spray water to the radial outer side of the revolution through the first rotating mechanism 4, which achieves the purpose of cleaning the welding slag and dust at the welding seam. Meanwhile, the photographing component 31, the blowing component 32 and the cleaning component 33 are arranged in the same circumferential direction in sequence, and the second rotating mechanism 5 drives the photographing component 31, the blowing component 32 and the cleaning component 33 to rotate around the central axis of the walking mechanism 2, which takes a photograph after further cleaning the dust and welding slag at the welding seam, and further improves the accuracy of detection, thereby solving the problem that the dust and welding slag in the steam pipeline have adverse effects on the apparent defect detection. Therefore, the present application effectively overcomes the various shortcomings in the prior art and has high industrial utilization value.

[0056] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought of the present application should be covered by the claims of the present application.

Claims

1. A device for automated detection of apparent defects in steam pipes, characterized in that, The steam pipeline apparent defect automatic detection device comprises a water spraying mechanism, a walking mechanism, a photographing mechanism, a first rotating mechanism and a second rotating mechanism; The first rotating mechanism is installed at the front end of the walking mechanism, the water spraying mechanism comprises a spray head, a rotatable water pipe joint, a water pump and a water tank, the water pumping end of the water pump is communicated with the water tank, the rotatable water pipe joint is communicated with the water outlet end of the water pump and the spray head, the water tank is installed in the walking mechanism, the spray head is installed on the first rotating mechanism, the first rotating mechanism drives the spray head to revolve around the central axis of the walking mechanism, and the spray head sprays water to the outside of the radial direction of the revolution. The second rotating mechanism is installed at the rear end of the walking mechanism, the photographing mechanism comprises a photographing part, a blowing part, a cleaning part and a rotatable electric appliance joint, the photographing part, the blowing part and the cleaning part are all installed on the outer wall of the second rotating mechanism and are arranged in sequence on the same circumferential direction of the central axis of the walking mechanism, the second rotating mechanism drives the photographing part, the blowing part and the cleaning part to revolve around the central axis of the walking mechanism, the irradiation end of the photographing part, the blowing end of the blowing part and the cleaning end of the cleaning part all point to the outside of the radial direction of the revolution, the rotatable electric appliance joint is installed in the second rotating mechanism and is connected with the photographing part and the blowing part, and the rotation axis of the rotatable electric appliance joint is on the central axis of the walking mechanism. The water spraying mechanism further comprises a first water pipe and a second water pipe. The first rotating mechanism comprises a first power piece, a first driving gear, a first driven cylinder, a first fixed cylinder and a first cover plate, the first driven cylinder, the first fixed cylinder and the walking mechanism share a central axis, the first driven cylinder is provided with a first gear ring in the circumferential direction between the two ends of the inner wall of the first driven cylinder, the first driving gear is engaged with the first gear ring, one end of the first fixed cylinder is fixedly installed at the front end of the walking mechanism, the other end of the first fixed cylinder is rotationally connected with one end of the first driven cylinder, the other end of the first driven cylinder is provided with a detachable first cover plate, and the first power piece is fixedly installed in the first fixed cylinder. The water outlet end of the water pump is communicated with one end of the first water pipe, the other end of the first water pipe and one end of the second water pipe are rotationally connected through the rotatable water pipe joint, the rotation axis of the rotatable water pipe joint is on the central axis of the first driven cylinder, the central axis of the first water pipe is collinear with the central axis of the first driven cylinder and perpendicular to the central axis of the second water pipe, and the other end of the second water pipe penetrates through the non-gear ring part of the first driven cylinder. The spray head is installed on the other end of the second water pipe.

2. The apparatus for automatically detecting apparent defects in steam pipes according to claim 1, wherein: The second rotating mechanism comprises a second driving gear, a second driven cylinder, a second fixed cylinder, a second power element, a second cover plate and a fixed cover, the second driven cylinder, the second fixed cylinder and the walking mechanism share a central axis, a second gear ring is arranged between the two ends of the inner wall of the second driven cylinder, the second driving gear and the second gear ring are engaged, one end of the second fixed cylinder is fixedly connected with the rear end of the walking mechanism, the other end of the second fixed cylinder is rotationally connected with one end of the second driven cylinder, the other end of the second driven cylinder is provided with a detachable second cover plate, the fixed cover is rotationally installed on the second cover plate, the second power element is fixedly installed in the second fixed cylinder, the second power element drives the second driving gear to rotate and thus drives the second gear ring to rotate, and the rotation of the second gear ring drives the second driven cylinder to rotate. The photographing component, the blowing component and the cleaning component are sequentially fixedly installed on the outer wall of the second driven cylinder, one end of the rotatable electric appliance connector is fixedly connected with the second fixed cylinder, and the other end of the rotatable electric appliance connector is fixedly connected with the fixed cover, the rotatable electric appliance connector comprises a rotating interface, the rotating interface is located between the two ends of the rotatable electric appliance connector and is connected to the non-gear ring part of the second driven cylinder and rotates with the rotation of the second driven cylinder.

3. The apparatus for automatically detecting apparent defects in steam pipes according to claim 2, wherein: The cleaning component comprises a brush, a connecting rod, a first bevel gear and a second bevel gear, the central axis of the first bevel gear is collinear with the rotation axis of the second driven cylinder, the first bevel gear and the second bevel gear are both located in the second driven cylinder, one end of the first bevel gear is fixedly connected with the other end of the rotatable electric appliance connector, the other end of the first bevel gear is engaged with the second bevel gear, the central axis of the second bevel gear is perpendicular to the central axis of the first bevel gear, one end of the connecting rod is fixedly connected with the second bevel gear in the circumferential direction, and the other end of the connecting rod passes through the non-gear ring part of the second driven cylinder and is provided with the brush; the rotation of the second driven cylinder drives the connecting rod and the second bevel gear to revolve, the first bevel gear drives the second bevel gear to rotate, and the connecting rod and the brush rotate with the rotation of the second bevel gear.

4. The apparatus for automatically detecting apparent defects in steam pipes according to claim 1, wherein: The walking mechanism comprises a plurality of walking components, a plurality of mounting racks and a mounting box, the walking components and the mounting racks correspond to each other, the walking components comprise a traction element and a traction motor, the walking components are mounted on the mounting racks, the mounting racks are fixedly installed on the outer wall of the mounting box, the traction motor drives the traction element to move, the movement of the traction element drives the movement of the mounting box, and the movement of the mounting box drives the movement of the water spraying mechanism, the photographing mechanism, the first rotating mechanism and the second rotating mechanism.

5. The apparatus for automated detection of apparent defects in steam pipes according to claim 4, characterized in that: The walking mechanism further comprises a plurality of telescopic components, one of the telescopic components corresponding to one of the mounting frames, each of the telescopic components comprising a first connecting rod, a second connecting rod, a sliding block and a telescopic component, one end of the first connecting rod being rotatably mounted on the traction component, the other end of the first connecting rod being rotatably connected to the corresponding mounting frame, one end of the second connecting rod being rotatably mounted on the traction component at a different position, the other end of the second connecting rod being rotatably connected to the sliding block, the sliding block being slidably connected to the mounting frame, the telescopic component having a telescopic end fixedly connected to the sliding block and a fixed end mounted on the mounting frame, the sliding block sliding along the length direction of the mounting frame as the telescopic component extends and retracts, the sliding of the sliding block driving the second connecting rod to rotate about the rotatable connection point between the second connecting rod and the sliding block, the rotation of the second connecting rod driving the first connecting rod to rotate about the rotatable connection point between the first connecting rod and the mounting frame through the traction component, and the rotation of the first connecting rod and the second connecting rod driving the traction component to move away from or close to the outer wall of the mounting box.

6. The apparatus for automated detection of apparent defects in steam pipes according to claim 5, characterized in that: The telescopic component further comprises a third connecting rod and a damping spring, one end of the first connecting rod and one end of the third connecting rod being rotatably connected to two ends of the traction component respectively, the other end of the third connecting rod being rotatably connected to the mounting frame, the length direction of the first connecting rod and the length direction of the third connecting rod being parallel to each other, the second connecting rod being rotatably connected to the middle part of the traction component, the rotation of the second connecting rod driving the first connecting rod and the third connecting rod to rotate about the rotatable connection points between the first connecting rod and the mounting frame and between the third connecting rod and the mounting frame respectively through the traction component, and the damping spring being mounted on the second connecting rod and the telescopic end of the telescopic component.

7. The apparatus for automated detection of apparent defects in steam pipes according to claim 4, characterized in that: The mounting box is provided with a sandwich layer, the water tank is located in the sandwich layer, and the water pump is mounted in the mounting box, with the water suction end of the water pump being communicated with the water tank through the inner wall of the mounting box.

8. The apparatus for automated detection of apparent defects in steam pipes according to claim 2, wherein: The outer wall of the second fixed cylinder is provided with a ring groove, the outer wall of the second driven cylinder is provided with at least one radial locking pin, the radial locking pin penetrates from the outer wall of the second driven cylinder to the inner wall in the radial direction, the radial locking pin and the ring groove are in sliding fit, a bearing is arranged between the inner wall of the second driven cylinder and the outer wall of the second fixed cylinder, and a sealing ring is arranged at the abutting position of the front end of the second driven cylinder and the second fixed cylinder.

9. Use of a device for automated detection of apparent defects in steam pipes according to any one of claims 1 to 8, characterized in that The method comprises the following steps: S1: turning on the power supply, and the detection device entering the steam pipeline; S2: the spray head moving to the weld with the walking mechanism, the walking mechanism stopping moving, the first rotating mechanism driving the spray head to rotate, and the spray head spraying water to the weld to remove dust and welding slag; S3: the walking mechanism continuing to move until the photographing mechanism reaches the weld cleaned in the previous step, the second rotating mechanism driving the cleaning component, the blowing component and the photographing component to rotate, the cleaning component cleaning the dust and welding slag remaining at the weld, the blowing component blowing away the water, dust and welding slag at the weld, and the photographing component shooting the real picture of the weld; S4: the walking mechanism continues to move forward until the next weld seam, and the above steps are repeated.

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