CN120703161A - A stainless steel pipe and its inner hole surface defect detection machine - Google Patents
A stainless steel pipe and its inner hole surface defect detection machineInfo
- Publication number
- CN120703161A CN120703161A CN202510989063.2A CN202510989063A CN120703161A CN 120703161 A CN120703161 A CN 120703161A CN 202510989063 A CN202510989063 A CN 202510989063A CN 120703161 A CN120703161 A CN 120703161A
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- zinc sulfide
- supporting seat
- hollow supporting
- uniformly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/72—Investigating presence of flaws
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/05—Means for preventing contamination of the components of the optical system; Means for preventing obstruction of the radiation path
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/06—Arrangements for eliminating effects of disturbing radiation; Arrangements for compensating changes in sensitivity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/48—Thermography; Techniques using wholly visual means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention relates to the technical field of pipeline detection, in particular to a stainless steel pipe and an inner hole surface defect detector thereof, wherein the stainless steel pipe comprises a pipe wall, and an inner through hole is formed in the center of the pipe wall; the detection machine comprises symmetrically arranged pipeline robots, zinc sulfide protection windows arranged between the two pipeline robots, a cylindrical mounting table arranged at one end of the zinc sulfide protection windows, four air jet heads uniformly arranged at one side of the cylindrical mounting table towards the zinc sulfide protection windows, and hollow supporting seats fixedly connected to the other ends of the zinc sulfide protection windows and uniformly arranged at one side of the hollow supporting seats. According to the invention, through the synergistic effects of mechanical scraping of the arc-shaped scraping plate driven by the scraping component, chemical dissolution of the cleaning agent driven by the cleaning component and instant drying of the directional air flow of the air curtain component, viscous greasy dirt and metal dust on the surface of the zinc sulfide protection window are removed, the interference of a residual liquid film on a laser and infrared signal path is avoided, and the detection precision and the detection efficiency of the detection component are improved.
Description
Technical Field
The invention relates to the technical field of pipeline detection, in particular to a stainless steel pipe and an inner hole surface defect detector thereof.
Background
In the high-precision manufacture of stainless steel pipes, it is important to detect surface defects of the inner bore nondestructively and efficiently. Laser infrared thermal imaging technology is a preferred solution in this field by virtue of its non-contact, high sensitivity and imaging capability. The principle is that high-energy laser beams are precisely projected to the inner surface of the pipe wall through an endoscopic optical system to perform local thermal excitation. Because of the difference between the thermal physical properties of the defect area and the matrix material, different temperature changes are generated after heating, and the defect area is released in the form of infrared radiation. The system captures and analyzes the radiation signals through the thermal infrared imager, and then a defect image of the inner surface can be reconstructed.
However, when the optical system is put into the pipeline, the serious challenges are faced to the fact that the pollutants such as cutting fluid, lubricating oil, condensed water vapor, metal dust and the like remained in the pipeline are extremely easy to adhere to the surface of the optical system. The contaminants scatter, absorb and reflect the incident laser light. This results in significant attenuation of the laser energy actually reaching the tube wall and distortion of the profile. As a result, the intensity of thermal excitation is insufficient, the temperature of the region is uneven, and the intensity of thermal response signals generated by defects is directly weakened. While the contaminant absorbs infrared radiation in a particular wavelength band and scatters the signal. This greatly reduces the intensity of the thermal signal emitted by the pipe wall defect and reduces the spatial resolution, so that the defect characteristics become blurred and difficult to accurately identify.
Currently, the pollution problem is solved by adopting a mode of blowing by an air knife or scraping by a scraping plate. However, although the conventional air knife can effectively remove dust, the removal rate of viscous oil stains is low, and the residual liquid film still can continuously interfere with the laser and infrared double paths. On the other hand, after the separate scraper scrapes off dirt, the residual cleaning agent forms an uneven liquid film due to lack of instant drying treatment, which not only aggravates laser scattering, but also absorbs infrared radiation. Therefore, the detection precision of the optical system can be seriously affected by the sticky greasy dirt and the residual cleaning agent, and the overall detection efficiency of the device is reduced.
Disclosure of Invention
The invention aims to provide a stainless steel pipe and an inner hole surface defect detector thereof, so as to solve the problems in the background technology.
The aim of the invention can be achieved by the following technical scheme:
The inner hole surface defect detector comprises symmetrically arranged pipeline robots, wherein zinc sulfide protection windows are arranged between the two pipeline robots, a cylindrical mounting table is arranged at one end of each zinc sulfide protection window, four air injection heads are uniformly arranged at one side of each cylindrical mounting table, a hollow supporting seat is fixedly connected with the other end of each zinc sulfide protection window, four arc cleaning spray heads are uniformly arranged at one side of each hollow supporting seat and circularly arranged at the periphery of each zinc sulfide protection window, and arc scraping plates which are fixedly connected with one ends of the arc cleaning spray heads facing the zinc sulfide protection windows and are adhered to the outer surfaces of the zinc sulfide protection windows;
The inside of zinc sulfide protection window is provided with detection component, and detection component is used for monitoring zinc sulfide protection window inboard local temperature and pipe wall inner wall defect, the inside of hollow supporting seat is provided with scrapes movable assembly, scrapes movable assembly and is used for driving the arc scraper blade and remove scraping pollutant along zinc sulfide protection window axial, the one end of zinc sulfide protection window is provided with adjusting part, and adjusting part is used for driving the jet head and deflects to the direction towards zinc sulfide protection window surface to focus the air current and paste the zinc sulfide protection window and sweep, the inside of tube-shape mount platform is provided with the air curtain subassembly, and the air curtain subassembly is used for providing compressed air to the jet head, the inside of hollow supporting seat is provided with cleaning component, and cleaning component is used for spraying cleaner solution greasy dirt to arc scraper blade advancing direction.
Preferably, the detection assembly comprises a detection box rotationally connected to one end of the hollow supporting seat, the detection box is arranged inside the zinc sulfide protection window, four infrared imaging modules are uniformly and fixedly connected to the periphery of the detection box, the detection box is fixedly connected to an optical fiber laser far away from one end of the hollow supporting seat, the detection assembly is fixedly connected to a beam splitter at the output end of the optical fiber laser, and the detection assembly is symmetrically and fixedly connected to two temperature sensors inside the zinc sulfide protection window.
Preferably, the scraping component comprises four scraping sliding grooves uniformly formed in the periphery of the hollow supporting seat, and a movable rack which is slidably connected to the inside of the scraping sliding grooves and is fixedly connected with the arc cleaning spray head at one end, wherein the four driving sliding grooves are uniformly formed in the periphery of the hollow supporting seat, the four driving sliding grooves are slidably connected to driving sliding blocks in the inside of the driving sliding grooves, the driving gears are rotatably connected to one ends of the driving sliding blocks, and the four fixed racks are uniformly and fixedly connected to the periphery of the hollow supporting seat, and the driving gears are arranged between the movable rack and the fixed rack and are synchronously meshed with the movable rack and the fixed rack.
Preferably, the extending direction of the transmission sliding groove is parallel to the scraping sliding groove, and the length of the movable rack is larger than the percentage of the stroke of the fixed rack.
Preferably, the scraping assembly further comprises a main gear rotationally connected inside the hollow supporting seat, four satellite gears which are uniformly arranged inside the hollow supporting seat and meshed with the main gear in a circular arrangement, a transmission rod fixedly connected to one end of the satellite gears and rotationally connected with the hollow supporting seat, a spiral groove formed in the periphery of the transmission rod, a ball head rod fixedly connected to one end of the transmission slider, far away from the transmission gear, of the transmission slider, a ball head end of the ball head rod is embedded inside the spiral groove, a motor fixedly connected to the inside the hollow supporting seat, a speed reducer fixedly connected to the output end of the motor, and the output end of the speed reducer is fixedly connected with the main gear in a coaxial mode, and the transmission gear is matched with a movable rack and a fixed rack for use, so that the arc scraping plate can move more than twice along the length direction of the transmission chute, and the scraping range of the arc scraping plate is improved.
Preferably, the adjusting component comprises a fixed disc fixedly connected to one end of the cylindrical mounting table, which faces the zinc sulfide protection window, four fixed sliding grooves uniformly formed in one end of the fixed disc, adjusting racks in the fixed sliding grooves are in sliding connection, four incomplete gears which are uniformly hinged to one side, facing the zinc sulfide protection window, of the fixed disc and are fixedly connected with the air jet head, of one end of each incomplete gear are formed in the fixed disc, and an annular air bin communicated with the air jet head through a pipeline is fixedly connected to one end of each adjusting rack and is arranged in a reset spring in the fixed sliding grooves.
Preferably, the adjusting component further comprises a supporting wheel rotatably connected to one end of the adjusting rack, an I-shaped wheel disc fixedly connected to the end of the beam splitter and penetrating through the fixed disc and rotatably connected with the beam splitter, four triangular projections uniformly and fixedly connected to the periphery of the I-shaped wheel disc, inclined surfaces of the triangular projections are in rolling contact with the supporting wheel, and the triangular projections are fixedly connected to one end of the detecting box and meshed with the satellite gear.
Preferably, the air curtain component comprises a miniature air compressor fixedly connected inside a cylindrical mounting table, a filter fixedly connected to an air inlet of the miniature air compressor and with an input end extending to the outside of the cylindrical mounting table, and four vortex tubes uniformly and fixedly connected to an output end of the miniature air compressor and with an output end communicated with the inside of the fixed disk.
Preferably, the cleaning assembly comprises a transfusion tube fixedly connected to the input end of the arc-shaped cleaning spray head, a liquid storage bin and a mounting bin which are arranged inside the hollow supporting seat, and a water pump fixedly connected to the inside of the mounting bin and the input end of which extends to the inside of the liquid storage bin.
Preferably, the cleaning assembly further comprises four groups of storage sliding grooves formed in the periphery of the hollow supporting seat, the storage sliding blocks are slidingly connected to the inner parts of the storage sliding grooves, the T-shaped guide rods are fixedly connected to the tops of the storage sliding blocks, the storage springs are fixedly connected to the inner parts of the storage sliding grooves, one ends of the storage springs are connected with the storage sliding blocks, the T-shaped positioning rods are uniformly and fixedly connected to the periphery of the hollow supporting seat, and the middle section of the infusion tube is in an S shape and bypasses the periphery of the T-shaped guide rods.
The invention has the beneficial effects that:
1. According to the invention, through the synergistic effects of mechanical scraping of the arc-shaped scraping plate driven by the scraping component, chemical dissolution of the cleaning agent driven by the cleaning component and instant drying of the directional air flow of the air curtain component, viscous greasy dirt and metal dust on the surface of the zinc sulfide protection window are removed, the interference of a residual liquid film on a laser and infrared signal path is avoided, and the detection precision and the detection efficiency of the detection component are improved.
2. According to the invention, the thermal accumulation of the protection window is monitored in real time through the temperature sensor, the closed-loop cleaning-cooling cycle is triggered, the low-temperature air flow provided by the vortex tube can realize rapid heat exchange with the zinc sulfide protection window so as to take away the heat accumulated on the surface of the zinc sulfide protection window, the thermal sensitivity stability of the infrared imaging module is ensured, meanwhile, the detection assembly can be rapidly put into detection work, and the detection efficiency of the detector is further improved.
3. The invention sets the jet head to realize the double-mode switching through the incomplete gear, namely, the wide-angle air curtain blocks pollutants during normal detection, and the focused air flow is blown against the zinc sulfide protection window to sweep during the cleaning mode, so that the heat accumulated on the surface of the zinc sulfide protection window is rapidly taken away, the residual moisture on the surface of the zinc sulfide protection window is blown dry, and the secondary interference caused by the residual cleaning agent is effectively avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to those skilled in the art that other drawings can be obtained according to these drawings without inventive effort;
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic top view of the hollow support of the present invention;
FIG. 3 is a cross-sectional view at A in FIG. 2;
FIG. 4 is a schematic view showing the internal structure of the inspection box according to the present invention;
FIG. 5 is an exploded view of the relationship between the hollow support base and the arcuate cleaning nozzle and arcuate scraper of the present invention;
FIG. 6 is a schematic view of the internal structure of the outer ring gear of the present invention;
FIG. 7 is a schematic perspective view of an air curtain assembly according to the present invention;
FIG. 8 is a schematic view of the positional relationship of an adjusting rack and an incomplete gear in the present invention;
FIG. 9 is an exploded view of the internal structure of the receiving chute of the present invention;
The reference numerals in the figure are 1, pipe wall, 2, inner through hole, 3, pipeline robot, 4, zinc sulfide protection window, 5, cylindrical mounting table, 6, jet head, 7, hollow supporting seat, 8, arc cleaning nozzle, 9, arc scraping plate, 10, detection box, 11, infrared imaging module, 12, fiber laser, 13, beam splitter, 14, temperature sensor, 16, scraping chute, 17, movable rack, 18, transmission chute, 19, transmission slide block, 20, transmission gear, 21, fixed rack, 22, main gear, 23, satellite gear, 24, transmission rod, 25, spiral groove, 26, ball head rod, 27, motor, 28, speed reducer, 29, fixed disk, 30, fixed chute, 31, adjusting rack, 32, incomplete gear, 33, annular air bin, 34, reset spring, 35, interference wheel, 36, I-shaped wheel, 37, triangular bump, 38, beam splitter, 39, micro air compressor, 40, filter, 41, pipe, 42, external gear, 43, liquid storage bin, 44, water pump, 45, spiral guide rod, 48, T-shaped guide rod, 50.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The inner hole surface defect detector for stainless steel pipe has the defect scanning requirement on the inner hole surface, and is one pipeline endoscopic optical detector for nondestructive inspection of the inner hole surface of stainless steel pipe.
As shown in fig. 1-5, the stainless steel tube comprises a tube wall 1, an inner through hole 2 is formed in the center of the tube wall 1, an inner hole surface defect detector axially enters the inner through hole 2 along the tube wall 1, the inner hole surface defect detector comprises symmetrically arranged pipeline robots 3, a zinc sulfide protection window 4 is arranged between the two pipeline robots 3, a cylindrical mounting table 5 is mounted at one end of the zinc sulfide protection window 4, four air jet heads 6 are uniformly arranged at one side of the cylindrical mounting table 5, which faces the zinc sulfide protection window 4, a hollow supporting seat 7 is fixedly connected at the other end of the zinc sulfide protection window 4, four arc cleaning spray heads 8 are uniformly arranged at one side of the hollow supporting seat 7, are circularly arranged at the periphery of the zinc sulfide protection window 4, and arc scraping plates 9 are fixedly connected at one end, which faces the zinc sulfide protection window 4, and are attached to the outer surface of the zinc sulfide protection window 4;
The inside of zinc sulfide protection window 4 is provided with detection component, detection component is used for monitoring zinc sulfide protection window 4 inboard local temperature and pipe wall 1 inner wall defect, the inside of hollow supporting seat 7 is provided with scrapes the movable component, scrape movable component and be used for driving arc scraper blade 9 along zinc sulfide protection window 4 axial displacement scraping pollutant, the one end of zinc sulfide protection window 4 is provided with adjusting part, adjusting part is used for driving the direction that jet head 6 deflected to the surface towards zinc sulfide protection window 4, paste zinc sulfide protection window 4 with the focus air current and sweep, the inside of tubular mounting platform 5 is provided with the air curtain subassembly, the air curtain subassembly is used for providing compressed air to jet head 6, the inside of hollow supporting seat 7 is provided with cleaning component, cleaning component is used for spraying the sanitizer to arc scraper blade 9 advancing direction and dissolves the greasy dirt.
When the intelligent detection device is used, firstly, the pipeline robot 3 carries the detector to enter the stainless steel pipe inner through hole 2, the air curtain component passes through the air jet head 6 to the annular air curtain with the cone angle of Zhou Chuisong degrees outside the zinc sulfide protection window 4 so as to blow and scatter dust and other foreign matters falling to the surface of the zinc sulfide protection window 4, then when the detection component senses that the temperature of the surface of the zinc sulfide protection window 4 is too high and the data collection of the infrared imaging module 11 is influenced, the scraping component is started to drive the arc scraping plate 9 to be attached to the surface of the zinc sulfide protection window 4 to move, and the cleaning component is matched with the cleaning component to spray cleaning agent to the advancing direction of the arc scraping plate 9 through the arc cleaning nozzle 8 so as to scrape the foreign matters adhered to the zinc sulfide protection window 4, and simultaneously, the adjusting component is matched to drive the air jet head 6 to deflect to the direction facing the surface of the zinc sulfide protection window 4 so as to blow and clean the focused air flow to attach to the zinc sulfide protection window 4, the heat accumulated on the surface of the zinc sulfide protection window 4 is taken away rapidly, the residual moisture on the surface of the zinc sulfide protection window 4 is effectively avoided, the secondary interference is formed, and the detection efficiency of the detection component is effectively improved.
As shown in fig. 2-4, the detection assembly comprises a detection box 10 rotatably connected to one end of the hollow support seat 7, the detection box 10 is arranged inside the zinc sulfide protection window 4, four infrared imaging modules 11 uniformly and fixedly connected to the periphery of the detection box 10, a fiber laser 12 fixedly connected to one end of the detection box 10 far away from the hollow support seat 7, a beam splitter 13 fixedly connected to the output end of the fiber laser 12, and two temperature sensors 14 symmetrically and fixedly connected to the inner side of the zinc sulfide protection window 4.
When the pipeline robot 3 is used, after the pipeline robot 3 carries the detector and enters the stainless steel pipe inner through hole 2, the fiber laser 12 passes through the zinc sulfide protection window 4 through the beam splitter 13 to excite the pipe wall 1, the pipe wall 1 heats, meanwhile, the infrared imaging module 11 receives a heat radiation signal of the inner surface of the pipe wall 1 so as to finish detection of defects of the inner wall of the pipe wall 1, then when the symmetrically arranged temperature sensors 14 detect that the local temperature of the inner side of the zinc sulfide protection window 4 exceeds a preset threshold value, pollutants are adhered to the surface of the zinc sulfide protection window 4, heat accumulation is caused to interfere with an optical path, and the scraping assembly is triggered to start to automatically clean stains adhered to the surface of the zinc sulfide protection window 4.
As shown in fig. 2-6, the scraping assembly comprises four scraping sliding grooves 16 uniformly arranged on the periphery of the hollow supporting seat 7, a movable rack 17 which is connected in the scraping sliding grooves 16 in a sliding manner and one end of which is fixedly connected with the arc-shaped cleaning spray head 8, four transmission sliding grooves 18 uniformly arranged on the periphery of the hollow supporting seat 7, a transmission sliding block 19 which is connected in the transmission sliding grooves 18 in a sliding manner, a transmission gear 20 which is connected at one end of the transmission sliding block 19 in a rotating manner, four fixed racks 21 which are uniformly and fixedly connected on the periphery of the hollow supporting seat 7, wherein the transmission gear 20 is arranged between the movable rack 17 and the fixed rack 21 and is synchronously meshed with the fixed racks, the extending direction of the transmission sliding grooves 18 is parallel to the scraping sliding grooves 16, the length of the movable rack 17 is greater than 200% of the stroke of the fixed rack 21, four satellite gears 23 which are uniformly arranged in the hollow supporting seat 7 and are meshed with the main gear 22, a transmission rod 24 which is fixedly connected at one end of the satellite gears 23 and is rotatably connected with the hollow supporting seat 7, a spiral motor 25 which is arranged on the periphery of the transmission rod 24, a spiral motor 25 which is fixedly connected at one end of the spiral motor head 25 which is far from the inner end of the hollow supporting seat 20 and is fixedly connected with the spiral motor 27, and the output end of the spiral motor which is fixedly connected with the spiral motor 25 at one end of the spiral motor 25.
When the cleaning device is used, when the scraping assembly is triggered to start to automatically clean dirt adhered to the surface of the zinc sulfide protection window 4, the starting motor 27 drives the main gear 22 to rotate through the speed reducer 28 to drive the four satellite gears 23 to synchronously rotate, the satellite gears 23 push the ball head rod 26 through the spiral grooves 25 of the transmission rod 24, the transmission slide block 19 moves along the transmission slide groove 18, the transmission gear 20 drives the arc scraping plate 9 to axially move along the zinc sulfide protection window 4 to scrape the dirt under the meshing transmission of the movable rack 17 and the fixed rack 21, and meanwhile, the cleaning assembly is started, wherein the transmission gear 20 is matched with the movable rack 17 and the fixed rack 21 to use, so that the arc scraping plate 9 can move more than twice of the movement stroke of the transmission gear 20 along the length direction of the transmission slide groove 18, and the scraping range of the arc scraping plate 9 is improved.
As shown in fig. 2-4, fig. 7 and fig. 8, the adjusting assembly comprises a fixed disk 29 fixedly connected to one end of a cylindrical mounting table 5 facing a zinc sulfide protection window 4, four fixed sliding grooves 30 uniformly arranged at one end of the fixed disk 29, an adjusting rack 31 which is slidably connected to the inside of the fixed sliding grooves 30, four incomplete gears 32 uniformly hinged to one side of the fixed disk 29 facing the zinc sulfide protection window 4 and one end of which is fixedly connected with a jet head 6, an annular air bin 33 which is arranged inside the fixed disk 29 and is communicated with the jet head 6 through a pipeline, and a reset spring 34 fixedly connected to one end of the adjusting rack 31 and arranged inside the fixed sliding grooves 30, wherein the adjusting assembly further comprises an abutting wheel 35 which is rotatably connected to one end of the adjusting rack 31, four triangular bumps 37 which are fixedly connected to the end of a beam splitter mirror 13 and pass through the fixed disk 29 and are rotatably connected with the abutting wheel 36, an outer ring 38 which is fixedly connected to one end of a detection box 10 and is meshed with a satellite gear 23, and the air curtain assembly comprises a micro-compressor 39 fixedly connected to the inside of the cylindrical mounting table 5, and an air inlet and an outlet of the micro-compressor 39 fixedly connected to the micro-compressor 39 is fixedly connected to the outside of the micro-air inlet end of the micro-compressor 41.
When the device is used, firstly, the micro air compressor 39 is started to compress filtered gas through the filter 40, and the filtered gas is input into the annular air bin 33 through the vortex tube 41, wherein the filter 40 adopts a multi-stage air filter (for example, SMC-AFM30-10-B type) with the precision less than or equal to 0.3 μm, the input end of the filter is connected with an external air source, the output end of the filter is connected with the air inlet of the micro air compressor 39, then the air jet head 6 is communicated with the annular air bin 33 through a pipeline, pressurized gas is guided to blow the periphery of the zinc sulfide protective window 4, then the outer toothed ring 38 drives the detection box 10 to rotate while driving the arc scraping plate 9 to move, the triangular lug 37 is driven by the I-shaped wheel disc 36 to push against the contact wheel 35, the adjusting rack 31 is forced to compress the reset spring 34, the adjusting rack 31 drives the incomplete gear 32 to deflect 25 degrees, the air jet head 6 is switched to 15 degrees from an initial 60-degree outer conical expansion angle, the air flow mode is switched from the annular protective air curtain to a window high-speed wind, meanwhile, the vortex tube 41 reduces the temperature of the pressurized gas generated by the micro air compressor 39, and enables low-temperature air to be closely contacted with the surface of the zinc sulfide protective window 4, and simultaneously blows and rapidly blows and blows residual heat to be blown and dried.
As shown in fig. 2, 3, 5 and 9, the cleaning assembly comprises a liquid storage bin 43 and a mounting bin 44 which are fixedly connected to the input end of the arc-shaped cleaning spray head 8, and a water pump 45 which is fixedly connected to the inside of the mounting bin 44 and the input end of which extends to the inside of the liquid storage bin 43, wherein the cleaning assembly further comprises four groups of containing sliding grooves 46 which are formed in the periphery of the hollow support seat 7, a containing sliding block 47 which is slidingly connected to the inside of the containing sliding groove 46, a T-shaped guide rod 48 which is fixedly connected to the top of the containing sliding block 47, a containing spring 49 which is fixedly connected to the inside of the containing sliding groove 46 and one end of which is connected with the containing sliding block 47, and a T-shaped positioning rod 50 which is uniformly and fixedly connected to the periphery of the hollow support seat 7, wherein the middle section of the liquid storage tube 42 bypasses the periphery of the T-shaped guide rod 48 in an S shape.
When the cleaning device is used, when the arc scraping plate 9 is driven to axially move along the zinc sulfide protection window 4 to scrape pollutants, the water pump 45 is started to pump cleaning agent in the liquid storage bin 43 into the arc cleaning spray head 8 through the infusion tube 42, oil stains are sprayed and dissolved in the advancing direction of the arc scraping plate 9, meanwhile, the middle section of the infusion tube 42 moves in a telescopic mode along the length direction of the storage sliding groove 46 along with the T-shaped guide rod 48, the T-shaped guide rod 48 drives the storage sliding block 47 to squeeze the storage spring 49 to stretch, so that the infusion tube 42 is driven to be in a tight state among the T-shaped guide rods 48, winding of the infusion tube 42 is reduced, and the storage spring 49 pushes the T-shaped guide rod 48 to drive the infusion tube 42 to automatically reset after cleaning is completed.
The invention provides a stainless steel pipe inner hole surface defect detector, which has the following working principle:
Firstly, a pipeline robot 3 carries a detector to enter a through hole 2 in a stainless steel pipe, a micro air compressor 39 is started to compress filtered gas through a filter 40, the filtered gas is input into an annular gas bin 33 through a vortex tube 41, then a jet head 6 is communicated with the annular gas bin 33 through a pipeline and is connected with an annular gas curtain with a cone angle of 60 degrees outside Zhou Chuisong of a zinc sulfide protection window 4 to blow away dust and other foreign matters falling onto the surface of the zinc sulfide protection window 4, then a beam splitter 13 passes through the zinc sulfide protection window 4 to excite the pipe wall 1 at a fiber laser 12, the pipe wall 1 heats, an infrared imaging module 11 receives a heat radiation signal of the inner surface of the pipe wall 1 to finish detection of defects of the inner wall of the pipe wall 1, and meanwhile, when the temperature sensors 14 symmetrically arranged detect that the local temperature of the inner side of the zinc sulfide protection window 4 exceeds a preset threshold value, the pollutants are adhered to the surface of the zinc sulfide protection window 4, so that heat accumulation interferes an optical path;
At the moment, a motor 27 is started to drive a main gear 22 to rotate through a speed reducer 28 so as to drive four satellite gears 23 to synchronously rotate, the satellite gears 23 push a ball head rod 26 through a spiral groove 25 of a transmission rod 24, a transmission slide block 19 moves along a transmission slide groove 18, and a transmission gear 20 drives an arc scraping plate 9 to axially move along a zinc sulfide protection window 4 to scrape pollutants under the meshing transmission of a movable rack 17 and a fixed rack 21;
And when the arc scraping plate 9 is driven to move, the outer toothed ring 38 drives the detection box 10 to rotate, the I-shaped wheel disc 36 drives the triangular lug 37 to push against the contact wheel 35, the adjusting rack 31 is forced to compress the reset spring 34, the adjusting rack 31 drives the incomplete gear 32 to deflect 25 degrees, the jet head 6 is switched from an initial 60-degree outer conical angle to a 15-degree inner inclined angle, the airflow mode is switched from an annular protection air curtain to window pasting high-speed wind, meanwhile, the vortex tube 41 reduces the temperature of pressurized air generated by the micro air compressor 39, and enables low-temperature airflow to be closely blown against the surface of the zinc sulfide protection window 4 to quickly take away accumulated heat and blow dry residual cleaning agent.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims.
Claims (10)
1. The inner hole surface defect detector for the stainless steel pipe is characterized in that the stainless steel pipe comprises a pipe wall (1), and an inner through hole (2) is formed in the center of the pipe wall (1);
the inner hole surface defect detector axially enters the inner through hole (2) along the pipe wall (1), and comprises pipeline robots (3) which are symmetrically arranged, zinc sulfide protection windows (4) which are arranged between the two pipeline robots (3), a cylindrical mounting table (5) which is arranged at one end of the zinc sulfide protection windows (4), four air jet heads (6) which are uniformly arranged at one side of the cylindrical mounting table (5) towards the zinc sulfide protection windows (4), a hollow supporting seat (7) which is fixedly connected to the other end of the zinc sulfide protection windows (4), four arc cleaning spray heads (8) which are uniformly arranged at one side of the hollow supporting seat (7) and circularly arranged at the periphery of the zinc sulfide protection windows (4), and arc scraping plates (9) which are fixedly connected to one ends of the arc cleaning spray heads (8) towards the zinc sulfide protection windows (4) and are attached to the outer surfaces of the zinc sulfide protection windows (4);
the inside of zinc sulfide protection window (4) is provided with the detection component, the inside of hollow supporting seat (7) is provided with scrapes the dynamic component, the one end of zinc sulfide protection window (4) is provided with adjusting part, the inside of tube-shape mount table (5) is provided with the air curtain subassembly, the inside of hollow supporting seat (7) is provided with clean subassembly.
2. The machine for detecting surface defects of inner holes according to claim 1, wherein the detection assembly comprises a detection box (10) rotatably connected to one end of the hollow support seat (7), the detection box (10) is arranged inside the zinc sulfide protection window (4), four infrared imaging modules (11) uniformly and fixedly connected to the periphery of the detection box (10), an optical fiber laser (12) fixedly connected to one end, far away from the hollow support seat (7), of the detection box (10), a beam splitter (13) fixedly connected to the output end of the optical fiber laser (12), and two temperature sensors (14) symmetrically and fixedly connected to the inner side of the zinc sulfide protection window (4).
3. The machine for detecting surface defects of inner holes according to claim 1, wherein the scraping assembly comprises four scraping sliding grooves (16) uniformly formed in the periphery of the hollow supporting seat (7), a movable rack (17) which is connected inside the scraping sliding grooves (16) in a sliding mode and one end of which is fixedly connected with the arc-shaped cleaning spray head (8), four transmission sliding grooves (18) uniformly formed in the periphery of the hollow supporting seat (7), a transmission sliding block (19) which is connected inside the transmission sliding groove (18) in a sliding mode, a transmission gear (20) which is connected to one end of the transmission sliding block (19) in a rotating mode, and four fixed racks (21) which are uniformly and fixedly connected to the periphery of the hollow supporting seat (7), wherein the transmission gear (20) is arranged between the movable rack (17) and the fixed racks (21) and is meshed with the movable rack and the fixed racks (21) in a synchronous mode.
4. The machine of claim 3, wherein the direction of extension of the drive chute (18) is parallel to the scraper chute (16), and the length of the movable rack (17) is greater than 200% of the travel of the stationary rack (21).
5. The machine for detecting surface defects of inner holes of a workpiece according to claim 3, wherein the scraping assembly further comprises a main gear (22) rotatably connected inside the hollow supporting seat (7), four satellite gears (23) which are uniformly arranged inside the hollow supporting seat (7) and are circularly arranged and meshed with the main gear (22), a transmission rod (24) fixedly connected with one end of the satellite gears (23) and rotatably connected with the hollow supporting seat (7), a spiral groove (25) formed in the periphery of the transmission rod (24), a ball head rod (26) fixedly connected with one end, far away from the transmission gear (20), of the transmission slider (19), a motor (27) with the ball head end embedded into the spiral groove (25) and fixedly connected inside the hollow supporting seat (7), a speed reducer (28) fixedly connected with the output end of the motor (27), and the output end of the speed reducer (28) and the main gear (22) are coaxially fixedly connected.
6. The machine of claim 1, wherein the adjusting assembly comprises a fixed disc (29) fixedly connected to one end of the cylindrical mounting table (5) facing the zinc sulfide protecting window (4), four fixed sliding grooves (30) uniformly formed in one end of the fixed disc (29), an adjusting rack (31) slidably connected to the inside of the fixed sliding grooves (30), four incomplete gears (32) uniformly hinged to one side of the fixed disc (29) facing the zinc sulfide protecting window (4) and fixedly connected with the air jet head (6) at one end, an annular air bin (33) formed in the inside of the fixed disc (29) and communicated with the air jet head (6) through a pipeline, and a reset spring (34) fixedly connected to one end of the adjusting rack (31) and arranged in the inside of the fixed sliding grooves (30).
7. The machine of claim 2, wherein the adjusting assembly further comprises a supporting wheel (35) rotatably connected to one end of the adjusting rack (31), an I-shaped wheel disc (36) fixedly connected to the end of the beam splitter (13) and passing through the fixed disc (29) and rotatably connected with the beam splitter, four triangular projections (37) uniformly and fixedly connected to the periphery of the I-shaped wheel disc (36) and having inclined surfaces in rolling contact with the supporting wheel (35), and an external tooth ring (38) fixedly connected to one end of the detecting box (10) and meshed with the satellite gear (23).
8. The machine for detecting surface defects of inner holes according to claim 1, wherein the air curtain component comprises a miniature air compressor (39) fixedly connected inside a cylindrical mounting table (5), a filter (40) fixedly connected to an air inlet of the miniature air compressor (39) and an input end of which extends to the outside of the cylindrical mounting table (5), and four vortex tubes (41) uniformly and fixedly connected to an output end of the miniature air compressor (39) and an output end of which is communicated with the inside of a fixed disc (29).
9. The machine for detecting surface defects of inner holes according to claim 1, wherein the cleaning assembly comprises a liquid storage bin (43) and a mounting bin (44) which are fixedly connected to an input end of the arc-shaped cleaning spray head (8), the liquid storage bin (43) and the mounting bin (44) are arranged in the hollow supporting seat (7), and a water pump (45) which is fixedly connected to the inside of the mounting bin (44) and the input end of which extends to the inside of the liquid storage bin (43).
10. The machine of claim 9, wherein the cleaning assembly further comprises four sets of receiving slide grooves (46) formed in the periphery of the hollow supporting seat (7), receiving slide blocks (47) slidably connected to the inner portions of the receiving slide grooves (46), T-shaped guide rods (48) fixedly connected to the tops of the receiving slide blocks (47), receiving springs (49) fixedly connected to the inner portions of the receiving slide grooves (46) and one ends of the receiving springs are connected with the receiving slide blocks (47), and T-shaped positioning rods (50) uniformly and fixedly connected to the periphery of the hollow supporting seat (7), wherein the middle sections of the infusion tubes (42) are S-shaped and bypass the periphery of the T-shaped guide rods (48).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510989063.2A CN120703161A (en) | 2025-07-17 | 2025-07-17 | A stainless steel pipe and its inner hole surface defect detection machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510989063.2A CN120703161A (en) | 2025-07-17 | 2025-07-17 | A stainless steel pipe and its inner hole surface defect detection machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN120703161A true CN120703161A (en) | 2025-09-26 |
Family
ID=97120488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202510989063.2A Pending CN120703161A (en) | 2025-07-17 | 2025-07-17 | A stainless steel pipe and its inner hole surface defect detection machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN120703161A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203561439U (en) * | 2013-09-29 | 2014-04-23 | 上海博锐特光电科技有限公司 | Novel air protection type infrared thermal imagery lens dustproof device |
| US20180273418A1 (en) * | 2017-03-24 | 2018-09-27 | Corning Incorporated | Systems and methods for measuring the temperature of glass during tube conversion |
| KR20200084658A (en) * | 2019-01-03 | 2020-07-13 | 김민태 | Switchboard automatic cleaning system |
| CN112113969A (en) * | 2020-09-18 | 2020-12-22 | 南京智能仿真技术研究院有限公司 | Defect detection device for pipeline and detection method thereof |
| CN115165888A (en) * | 2022-05-25 | 2022-10-11 | 哈尔滨工业大学 | Device, device and method for collecting defects on surface and subsurface of pipeline |
| CN118009142A (en) * | 2024-03-04 | 2024-05-10 | 安徽快通智能机器人有限公司 | Pipeline internal defect detection robot |
| CN222419276U (en) * | 2024-04-07 | 2025-01-28 | 山西路桥建设集团有限公司 | Asphalt pavement temperature detection device |
| KR20250020049A (en) * | 2023-08-03 | 2025-02-11 | 주식회사 아이알티 | Apparatus for Diagnosing Defects of Piping using a Thermal Imaging Apparatus |
| CN119803679A (en) * | 2025-03-12 | 2025-04-11 | 天泽智联科技股份公司 | Be used for colliery infrared monitor and monitoring system thereof |
-
2025
- 2025-07-17 CN CN202510989063.2A patent/CN120703161A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203561439U (en) * | 2013-09-29 | 2014-04-23 | 上海博锐特光电科技有限公司 | Novel air protection type infrared thermal imagery lens dustproof device |
| US20180273418A1 (en) * | 2017-03-24 | 2018-09-27 | Corning Incorporated | Systems and methods for measuring the temperature of glass during tube conversion |
| KR20200084658A (en) * | 2019-01-03 | 2020-07-13 | 김민태 | Switchboard automatic cleaning system |
| CN112113969A (en) * | 2020-09-18 | 2020-12-22 | 南京智能仿真技术研究院有限公司 | Defect detection device for pipeline and detection method thereof |
| CN115165888A (en) * | 2022-05-25 | 2022-10-11 | 哈尔滨工业大学 | Device, device and method for collecting defects on surface and subsurface of pipeline |
| KR20250020049A (en) * | 2023-08-03 | 2025-02-11 | 주식회사 아이알티 | Apparatus for Diagnosing Defects of Piping using a Thermal Imaging Apparatus |
| CN118009142A (en) * | 2024-03-04 | 2024-05-10 | 安徽快通智能机器人有限公司 | Pipeline internal defect detection robot |
| CN222419276U (en) * | 2024-04-07 | 2025-01-28 | 山西路桥建设集团有限公司 | Asphalt pavement temperature detection device |
| CN119803679A (en) * | 2025-03-12 | 2025-04-11 | 天泽智联科技股份公司 | Be used for colliery infrared monitor and monitoring system thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112827946B (en) | Radiation-resistant pipeline laser cleaning device and using method | |
| CN109047194A (en) | A kind of laser cleaner of inner wall of the pipe | |
| US4165179A (en) | Device for wiping optical window in turbidimeter or similar optical instrument for examining liquid sample | |
| CN120369634B (en) | Chip fixing device for micro-light microscope | |
| CN102507596B (en) | Optical element surface defect detecting system based on active laser beam scanning | |
| CN117554470B (en) | Pipeline inner wall magnetic powder detection device | |
| CN120703161A (en) | A stainless steel pipe and its inner hole surface defect detection machine | |
| CN113798275B (en) | A laser cleaning device for pipe inner wall based on side wall projection | |
| US4383572A (en) | Fire detection cleaning arrangement | |
| CN118681838A (en) | An electrical automation instrument detection device | |
| CN118731057B (en) | A pipeline defect length inspection device | |
| CN119805411A (en) | A laser radar with dust removal function | |
| CN118583794B (en) | A methane gas monitoring device | |
| CN117680846B (en) | Laser cutting seals integrative equipment | |
| CN113960251A (en) | VOC on-line monitoring appearance | |
| CN119164303A (en) | Intelligent measuring device for small curved surface linear modeling line diameter | |
| CN118777427A (en) | Auxiliary flaw detection device for titanium alloy forgings | |
| CN219122057U (en) | Device for generating auxiliary excitation light shadow | |
| CN118789135B (en) | A paper laser cutting machine for paper production | |
| CN112923786A (en) | Gun barrel inner wall laser cleaning machine equipment | |
| CN120778004B (en) | A length measuring device based on laser interferometry | |
| CN118837383B (en) | A non-destructive testing device for components | |
| CN221351313U (en) | A rail damage detection device based on air-coupled sensing technology | |
| CN119880926B (en) | A metallurgical composite pipeline liquid penetration test block and its detection process | |
| CN120868918A (en) | Light-weight alloy workpiece size measuring device based on optical measurement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |