A red tube wall thickness detection device and detection method

Abstract

The present invention discloses a red tube wall thickness detection device and a detection method. The detection probe is arranged in the water-cooled probe body, and the dry water-cooling system of the water-cooled probe body is used to cool down the detection probe, and the working temperature of the detection probe is controlled below 80 degrees Celsius. The water-cooled probe body is installed in the bridge, and the bridge walks along the outer wall of the red tube by using the moving wheels. The detection probe detects the wall thickness of the red tube in the area passed in real time, and the detection probe automatically transmits the measurement data to the control system in real time by using the data line. The red tube wall thickness detection device of the present invention has a simple structure, good flexibility, is easy to install and use. By using an electromagnetic ultrasonic detection probe plus dry water cooling, the wall thickness detection of an 800°C red tube is realized, changing the passive detection of the wall thickness of centrifugally cast tubes, and providing a feasible solution for automated active on-line detection.

Description

Technical Field

[0001] The present invention relates to the technical field of cast pipe detection, and particularly relates to a red pipe wall thickness detection device and a detection method. Background Art

[0002] During the centrifugal casting process, it is necessary to perform on-line monitoring of the wall thickness of the cast pipe to ensure that the wall thickness is within the allowable tolerance range and as uniform as possible. If the wall thickness exceeds the tolerance or is inconsistent, feedback should be formed in a timely manner to adjust the centrifuge process parameters.

[0003] Since the cast pipe just output from the centrifugal casting equipment has a very high temperature, and the surface temperature exceeds 800 degrees. Due to the high temperature, the cast pipe appears red, so it is also called a red pipe. Detecting the wall thickness directly under such high temperature conditions is a test for both personnel and the detection probe. It is necessary to design a reasonable real-time cooling system to ensure that the detection probe is in normal working conditions in real time.

[0004] In addition, the cast pipe is relatively long, and it is necessary for the detection probe to move along the outer wall of the cast pipe to achieve on-line measurement, and it should also have an adaptation ability for cast pipes of different diameters. Summary of the Invention

[0005] The purpose of the present invention is to provide a red pipe wall thickness detection device and a detection method for the problems existing in the prior art.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0007] A red pipe wall thickness detection device includes a bridge frame formed into a frame shape. A water-cooled probe body is installed in the bridge frame. A detection probe is installed in the water-cooled probe body. The water-cooled probe body is used for cooling the detection probe. The detection end of the detection probe is arranged corresponding to the outer wall of the red pipe to detect the wall thickness of the red pipe (on-line). The data line connected to the other end of the detection probe is led out from the water-cooled probe body and connected to an external control system. A plurality of positioning wheel assemblies are provided below the bridge frame. A plurality of elastic adjustment assemblies are provided on the bridge frame. The elastic adjustment assemblies are located above the positioning wheel assemblies. Link rods are respectively connected to both sides of the elastic adjustment assemblies. One end of the link rod is movably connected to the elastic adjustment assembly, and a guide wheel assembly is installed at the other end. The middle of the link rod is rotatably connected to the bridge frame, so that a pair of guide wheel assemblies can be unfolded or folded around the bridge frame. Moving wheels are respectively provided below the positioning wheel assemblies and the guide wheel assemblies. At least three of the moving wheels are in a group and are abutted and supported on the outer wall of the red pipe.

[0008] This red tube wall thickness detection device has a simple structure, good flexibility, is easy to install and use. By using an electromagnetic ultrasonic detection probe and dry-method water cooling, it realizes the wall thickness detection of red tubes at 800 °C, changes the passive detection of the wall thickness of centrifugally cast tubes, and provides a feasible solution for automated active on-line detection.

[0009] The setting of the water-cooled probe body can use water cooling to cool down the detection probe, avoid damage to the detection probe caused by high temperature during high-temperature detection, enable the detection probe to work within a reasonable temperature range, and is also conducive to the accuracy and effectiveness of detection. This water-cooled probe body can enable the detection probe to perform detection work in a temperature range below 80 degrees Celsius, while the entire detection device can be in a high-temperature environment (about 800 degrees Celsius), enabling it to be used as a device for detecting the wall thickness of red tubes.

[0010] As the basic framework, the bridge can be used to connect and install the water-cooled probe body, the positioning wheel assembly, the elastic component, the connecting rod, and the guide wheel assembly to form an integral structure, which can be taken and placed as a whole, enabling the whole to move along the pipeline; the connecting rods connected to both sides of the elastic adjustment component can rotate with the connection point with the bridge as the fulcrum, opening to both sides or closing inward, so as to adjust the distance between a pair of the guide wheel assemblies to adapt to pipelines with different diameters.

[0011] The setting of multiple positioning wheel assemblies and multiple guide wheel assemblies can at least form two sets of moving support roller systems in the front-back direction. The setting of one positioning wheel assembly paired with a pair of guide wheel assemblies can form a three-point support for guiding and positioning on the outer circle of the pipeline. After the positions of the positioning wheel assembly and the guide wheel assembly are determined, the stability of the movement of the bridge can be ensured, and the distance between the detection probe and the pipe wall can also be ensured, which is conducive to the accurate measurement of the detection probe.

[0012] Furthermore, the bridge includes a pair of mounting seats arranged front and back. The positioning wheel assembly is installed below the mounting seat, and the elastic adjustment component is installed in parallel above it. The two ends of the mounting seat are respectively connected to the connecting rod through a pin shaft, and a pair of the connecting rods are symmetrically arranged on both sides of the elastic adjustment component.

[0013] The pair of mounting seats are arranged one in front and one behind, and these moving wheels can be installed at the front and back respectively. The space enclosed between the mounting seats can just install the water-cooled probe body, so that the detection equipment can move along the outer circumference of the pipeline to detect the pipeline. The mounting seat is connected to the connecting rod through a pin shaft, enabling the connecting rod to rotate around this point.

[0014] Further, the water-cooled probe body includes a water-cooled body. An installation through-hole is provided in the middle of the water-cooled body. A probe seat and a protective cover with their ends abutted are connected in the installation through-hole. A detection probe is installed in the probe seat. A ceramic sheet is installed on the end face of the protective cover, and the ceramic sheet is used to protect the detection end of the detection probe. A plurality of annular cooling channels are formed between the outer circumferences of the probe seat and the protective cover and the inner circumference of the installation through-hole. A plurality of annular circulating water channels are provided in the water-cooled body, and the annular cooling channels are correspondingly arranged with the annular circulating water channels and are provided with communication holes.

[0015] The probe seat and the protective cover are encapsulated together in the installation through-hole, so that an annular cooling channel can be formed between their outer circumferences and the inner circumference of the installation through-hole. After these annular cooling channels are connected to the annular circulating water channels in the water-cooled probe body, a circulating water-cooled structure can be formed, so that the detection probe located in the probe seat is in a non-high-temperature state.

[0016] The detection probe is installed in the probe seat and can be protected by it, and its detection end can be protected by the protective cover. The ceramic sheet provided on the protective cover can, on the one hand, isolate high temperature, and on the other hand, form a wear-resistant end face to protect the detection probe from wear.

[0017] The ceramic sheet is zirconia ceramic, which has good wear resistance and does not affect the penetration of ultrasonic waves. The probe seat and the protective cover are respectively made of copper material to ensure heat transfer performance.

[0018] Further, installation grooves are respectively provided at both ends of the installation through-hole. The end flanges of the probe seat and the protective cover are respectively fixedly installed in the installation grooves through screws, and a sealing ring is also provided between the installation grooves and the end flanges. A shallow groove is provided at the outer end of the protective cover, and the ceramic sheet is installed in the shallow groove and fixed by a pressing plate.

[0019] Adopting this installation structure, the probe seat and the protective cover can be butt-jointed and installed in the installation through-hole, and the connection is firm and reliable, with good sealing performance, avoiding leakage at both ends. A sealing gasket can also be provided at the butting end face of the probe seat and the protective cover to enhance the sealing performance at this place.

[0020] Further, a water inlet channel and a water outlet channel are provided in the water-cooled body. The water inlet channel and the water outlet channel are respectively communicated with the annular circulating water channels. Water connectors and plugs are respectively provided at both ends of the water inlet channel and the water outlet channel. Connecting edges are also provided on both sides of the end face of the water-cooled body, and the connecting edges are connected to the frame of the bridge through screws.

[0021] The arrangement of the water inlet channel and the water outlet channel facilitates the inflow and outflow of the internal coolant to form a circulating cooling system. The water connector facilitates the docking of pipelines, and the plug can seal the opening and can be opened during maintenance and cleaning.

[0022] Further, the elastic adjustment assembly includes a limit seat connected to the bridge frame. An adjustable partition is provided on the limit seat. Support rods are respectively sleeved at both ends of the partition. Positioning plates, springs, supports and a number of adjusting nuts are respectively sleeved and connected on the support rods. The springs are located between the positioning plates and the supports. The adjusting nuts are respectively arranged on one side of the partition, the positioning plate and the support; a connecting ear is further provided on the support, and the connecting ear is rotatably connected to the end of the connecting rod through a pin shaft.

[0023] Through the arrangement of a pair of the support rods, and in cooperation with the structures of the support, the spring and the positioning plate, the elastic adjustment assembly enables the support to slide a short distance on the support rod, thereby changing the position of the connection point between the support and the connecting rod. Moreover, the connecting ear between the connecting rod and the support can rotate relative to each other, so that the connecting rod can be expanded or retracted to both sides relative to the main mounting seat of the bridge frame body.

[0024] Further, the partition includes a partition main body connected to the support rod and a partition connecting portion provided in the middle of the partition main body; the limit seat is an L-shaped plate, including a horizontal portion connected to the bridge frame and a vertical portion connected to the partition. A connection groove is provided in the middle of the vertical portion, and the partition connecting portion is inserted into the connection groove and connected by a fastener. Through the cooperative arrangement of the connection groove and the partition connecting portion, the up-and-down position of the partition can also be adjusted, and the fastener can fixedly connect the partition to the limit seat.

[0025] Further, both the guide wheel assembly and the positioning wheel assembly include a connection base. A number of stepped screw holes are provided on the connection base. A pair of side plates are screwed below the connection base. A moving wheel is connected between the pair of side plates through a roller pin shaft. The roller pin shaft penetrates from one side plate to the other side plate and is fixedly connected by an end cap and a screw. The wheel assembly with this structure facilitates the assembly of the moving wheel and also facilitates the overall installation of the wheel assembly below the bridge frame or the connecting rod.

[0026] Further, the moving wheel includes an outer wheel and a bearing sleeved inside the outer wheel. Elastic washers and sleeves are respectively provided on both sides of the bearing. The outer shape of the outer wheel is drum-shaped. Different contact points are used to adapt to measured cast pipes with different diameter specifications. The moving wheel realizes the positioning and walking guidance of the detection probe in two usage scenarios.

[0027] Further, a method for detecting the wall thickness of a red pipe is as follows. The detection probe is arranged inside the water-cooled probe body. The dry water-cooling system of the water-cooled probe body is used to cool down the detection probe, and the operating temperature of the detection probe is controlled below 80 degrees Celsius. The water-cooled probe body is installed inside the bridge. The bridge moves along the outer wall of the red pipe by means of the moving wheels. The detection probe detects the wall thickness of the red pipe in the area it passes through in real time. The detection probe automatically transmits the measurement data to the control system in real time using the data cable.

[0028] This device and method consider the adaptive function for adjacent pipe diameter specifications. By using functions such as dry water-cooling circulation and the protection of ceramic chips, relevant technical problems are specifically solved, and the on-line measurement of the wall thickness of the red pipe is realized. In cooperation with the elastic adjustment component, the positioning wheel component, the guiding wheel component and the control system, the work of data transmission and processing can be completed, and an automated system for wall thickness measurement, data processing and feedback control can be formed.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The structure of this red pipe wall thickness detection device is simple, has good flexibility, is easy to install and use. By using an electromagnetic ultrasonic detection probe plus dry water-cooling, the wall thickness detection of a red pipe at 800 °C is realized, changing the passive detection of the wall thickness of centrifugally cast pipes, and providing a feasible solution for automated active on-line detection; 2. The setting of the water-cooled probe body can use water-cooling to cool down the detection probe, avoiding damage to the detection probe caused by high temperature during the high-temperature detection process, enabling the detection probe to work within a reasonable temperature range, and also being beneficial to the accuracy and effectiveness of the detection; 3. The bridge, as the basic framework, can be used to connect and install the main components to form an overall structure, which can be taken and placed as a whole, enabling the whole to move along the pipeline; the connecting rods connected to both sides of the elastic adjustment component can rotate with the connection point with the bridge as the fulcrum, open to both sides or close inward, so as to adjust the distance between a pair of the guiding wheel components to adapt to pipes with different diameters; 4. The setting of multiple positioning wheel components and multiple guiding wheel components can form a three-point support for guiding and positioning on the outer circle of the pipeline, which can ensure the stability of the movement of the bridge, and thus ensure the distance between the detection probe and the pipe wall, being beneficial to the accurate measurement of the detection probe; 5. The detection probe installed inside the probe seat can be protected by it, and the detection end can be protected by the protective cover. The ceramic chip provided on the protective cover can, on the one hand, isolate high temperature, and on the other hand, form a wear-resistant end face to protect the detection probe from wear. Description of the Drawings

[0030] Figure 1 It is a schematic overall layout diagram of a red pipe wall thickness detection device of the present invention;

[0031] Figure 2Explosion structure schematic diagram of a red tube wall thickness detection device of the present invention;

[0032] Figure 3 Bridge structure schematic diagram of a red tube wall thickness detection device of the present invention;

[0033] Figure 4 Explosion structure schematic diagram of a water-cooled probe body of a red tube wall thickness detection device of the present invention;

[0034] Figure 5 Partial sectional structure schematic diagram of a water-cooled probe body of a red tube wall thickness detection device of the present invention;

[0035] Figure 6 Bottom structure schematic diagram of a water-cooled probe body of a red tube wall thickness detection device of the present invention;

[0036] Figure 7 End face structure schematic diagram of a protective cover of a water-cooled probe body of a red tube wall thickness detection device of the present invention;

[0037] Figure 8 Three-dimensional structure schematic diagram of an elastic adjustment component of a red tube wall thickness detection device of the present invention;

[0038] Figure 9 Explosion structure schematic diagram of an elastic adjustment component of a red tube wall thickness detection device of the present invention;

[0039] Figure 10 Perspective structure schematic diagram of an elastic adjustment component of a red tube wall thickness detection device of the present invention;

[0040] Figure 11 Sectional structure schematic diagram of a positioning wheel assembly (guide wheel assembly) of a red tube wall thickness detection device of the present invention;

[0041] Figure 12 Explosion structure schematic diagram of a positioning wheel assembly (guide wheel assembly) of a red tube wall thickness detection device of the present invention;

[0042] In the figure: 1, bridge frame; 101, mounting seat; 102, mounting groove; 2, water-cooled probe body; 201, mounting slot; 202, water inlet channel; 203, water outlet channel; 204, communication hole; 205, connecting edge; 206, annular circulating water path; 207, sealing ring; 3, positioning wheel assembly; 4, guiding wheel assembly; 5, elastic adjusting assembly; 501, limiting seat; 5011, connecting slot; 502, partition board; 5021, partition board main body; 5022, partition board connecting part; 503, support rod; 504, positioning plate; 505, spring; 506, support; 507, connecting ear; 508, fastener; 6, connecting rod; 7, probe seat; 8, detection probe; 9, protective cover; 901, shallow groove; 10, ceramic sheet; 11, pressing plate; 12, annular cooling channel; 13, water joint; 14, plug; 15, connecting base; 16, side plate; 17, outer wheel; 18, bearing; 19, elastic washer; 20, sleeve; 21, roller pin shaft; 22, end cap. Detailed implementation mode

[0043] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

[0044] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0045] Such as Figure 1 And Figure 2As shown in the figure, a red tube wall thickness detection device includes a bridge frame 1 that forms a frame shape. A water-cooled probe body 2 is installed in the bridge frame 1. A detection probe is installed in the water-cooled probe body 2. The water-cooled probe body 2 is used for cooling the detection probe. The detection end of the detection probe is arranged corresponding to the outer wall of the red tube and performs on-line detection of the wall thickness of the red tube. The data line connected to the other end of the detection probe is led out from the water-cooled probe body 2 and connected to an external control system. A plurality of positioning wheel assemblies 3 are provided below the bridge frame 1. A plurality of elastic adjustment assemblies 5 are provided on the bridge frame 1. The elastic adjustment assemblies 5 are located above the positioning wheel assemblies 3. Link rods 6 are respectively connected to both sides of the elastic adjustment assemblies 5. One end of the link rod 6 is movably connected to the elastic adjustment assembly 5, and a guide wheel assembly 4 is installed at the other end. The middle of the link rod 6 is rotatably connected to the bridge frame 1, so that a pair of the guide wheel assemblies 4 can be unfolded or folded around the bridge frame 1. Moving wheels are respectively provided below the positioning wheel assemblies 3 and the guide wheel assemblies 4. At least three of the moving wheels are in a group and are abutted and supported on the outer wall of the red tube.

[0046] The structure of this red tube wall thickness detection device is simple, has good flexibility, is easy to install and use. By using an electromagnetic ultrasonic detection probe plus dry method water cooling, the wall thickness detection of a red tube at 800 °C is realized, changing the passive detection of the wall thickness of centrifugally cast pipes, and providing a feasible solution for automatic active on-line detection.

[0047] The setting of the water-cooled probe body 2 can use water cooling to cool down the detection probe, avoiding damage to the detection probe caused by high temperature during high-temperature detection, enabling the detection probe to work within a reasonable temperature range, and also being beneficial to the accuracy and effectiveness of detection. This water-cooled probe body can enable the detection probe to perform detection work in a temperature range below 80 degrees Celsius, while the entire detection device can be in a high-temperature environment (about 800 degrees Celsius), enabling it to be used as a device for detecting the wall thickness of red tubes.

[0048] The bridge frame 1, as a basic framework, can be used to connect and install the water-cooled probe body 2, the positioning wheel assemblies 3, the elastic adjustment assemblies 5, the link rods 6 and the guide wheel assemblies 4 to form an integral structure, which can be taken and placed as a whole, enabling the whole to move along the pipeline. The link rods 6 connected to both sides of the elastic adjustment assembly 5 can rotate with the connection point with the bridge frame 1 as the fulcrum, open to both sides or close inward, so as to adjust the distance between a pair of the guide wheel assemblies 4 to adapt to pipes with different diameters.

[0049] The arrangement of multiple said positioning wheel assemblies 3 and multiple said guiding wheel assemblies 4 can at least form two sets of moving support roller systems in the front-back direction. The arrangement of one positioning wheel assembly 3 paired with a pair of guiding wheel assemblies 4 can form a three-point support for guiding and positioning on the outer circumference of the pipeline. After the positions of the positioning wheel assembly and the guiding wheel assembly are determined, the stability of the movement of the bridge can be ensured, and thus the distance between the detection probe and the pipe wall can be ensured, which is beneficial to the accurate measurement of the detection probe.

[0050] Furthermore, as shown in Figure 3 the bridge 1 includes a pair of mounting seats 101 arranged front and back. The positioning wheel assembly 3 is installed in the mounting groove 102 below the mounting seat 101, and the elastic adjustment assembly 5 is installed in parallel above it. The two ends of the mounting seat 101 are respectively connected to the connecting rod 6 through pin shafts. A pair of said connecting rods 6 are symmetrically arranged on both sides of the elastic adjustment assembly 5.

[0051] The pair of mounting seats 101 are arranged one in front of the other, and these moving wheels can be installed at the front and back respectively. The space enclosed between the mounting seats 101 can just install the water-cooled probe body 2, so that the detection equipment can be carried along the outer circumference of the pipeline to detect the pipeline. The mounting seat 101 and the connecting rod 6 are connected through a pin shaft, enabling the connecting rod 6 to rotate around this point.

[0052] Furthermore, as shown in Figures 4 to 7 the water-cooled probe body 2 includes a water-cooled body. There is a mounting through-hole in the middle of the water-cooled body. A probe seat 7 and a protective cover 9 with their ends abutted are connected in the mounting through-hole. A detection probe 8 is installed in the probe seat 7; a ceramic sheet 10 is installed on the end face of the protective cover 9, and the ceramic sheet 10 is used to protect the detection end of the detection probe 8; several annular cooling channels 12 are formed between the outer circumferences of the probe seat 7 and the protective cover 9 and the inner circumference of the mounting through-hole. There are several annular circulating water channels 206 in the water-cooled body. The annular cooling channels 12 are correspondingly arranged with the annular circulating water channels 206 and are provided with communication holes 204.

[0053] The probe seat 7 and the protective cover 9 are encapsulated together in the mounting through-hole, and an annular cooling channel can be formed between their outer circumferences and the inner circumference of the mounting through-hole. After these annular cooling channels 12 are connected to the annular circulating water channels 206 in the water-cooled body, a circulating water-cooled structure can be formed, enabling the detection probe 8 located in the probe seat 7 to be in a non-high-temperature state.

[0054] The detection probe 8 is installed in the probe holder 7 and can be protected by it, and its detection end can be protected by the protective cover 9. The ceramic sheet 10 provided on the protective cover 9 can, on the one hand, isolate high temperature, and on the other hand, form a wear-resistant end face to protect the detection probe from wear.

[0055] The ceramic sheet 10 is zirconia ceramic, which has good wear resistance and does not affect the penetration of ultrasonic waves; the probe holder 7 and the protective cover 9 are respectively made of copper material to ensure heat transfer performance.

[0056] Further, installation grooves 201 are respectively provided at both ends of the installation through hole. The end flanges of the probe holder 7 and the protective cover 9 are respectively fixedly installed in the installation grooves 201 by screws, and a sealing ring 207 is also provided between the installation grooves 201 and the end flanges; a shallow groove 901 is provided at the outer end of the protective cover 9, and the ceramic sheet 10 is installed in the shallow groove 901 and fixed by a pressing plate 11.

[0057] With this installation structure, the probe holder 7 and the protective cover 9 can be butt-jointed and installed in the installation through hole, and the connection is firm and reliable, with good sealing performance to avoid leakage at both ends. A sealing gasket can also be provided at the butting end face of the probe holder 7 and the protective cover 9 to enhance the sealing performance at this place.

[0058] Further, a water inlet channel 202 and a water outlet channel 203 are provided in the water-cooling body. The water inlet channel 202 and the water outlet channel 203 are respectively communicated with the annular circulating water channel 206. Water connectors 13 and plugs 14 are respectively provided at both ends of the water inlet channel 202 and the water outlet channel 203; connection edges 205 are also provided on both sides of the end face of the water-cooling body, and the connection edges 205 are connected to the frame of the bridge 1 by screws.

[0059] The provisions of the water inlet channel 202 and the water outlet channel 203 facilitate the entry and exit of the internal coolant to form a circulating cooling system. The water connector 13 facilitates the butting of pipelines, and the plug 14 can seal the opening and can be opened during maintenance and cleaning. Side holes and side plugs are also provided on both side walls of the water-cooling body to facilitate the cleaning and maintenance of the annular circulating water channel.

[0060] Further, as Figures 8 to 10As shown in the figure, the elastic adjustment component 5 includes a limit seat 501 connected to the bridge 1. An adjustable partition 502 is provided on the limit seat 501. Support rods 503 are sleeved at both ends of the partition 502. Positioning plates 504, springs 505, supports 506 and a number of adjusting nuts are sleeved and connected on the support rods 503 respectively. The spring 505 is located between the positioning plate 504 and the support 506. The adjusting nuts are respectively arranged on one side of the partition 502, the positioning plate 504 and the support 506. A connecting ear 507 is further provided on the support 506. The connecting ear 507 is rotatably connected to the end of the connecting rod 6 through a pin shaft.

[0061] Through the arrangement of a pair of the support rods 503, and in cooperation with the structures of the support 506, the spring 505 and the positioning plate 504, the elastic adjustment component 5 can enable the support 506 to slide a short distance on the support rod 503, so as to change the horizontal position of the connection point between the support 506 and the connecting rod 6. Moreover, the connecting rod 6 and the connecting ear 507 of the support 506 can rotate relative to each other, so that the connecting rod 6 can be unfolded or folded towards both sides relative to the mounting seat of the bridge 1.

[0062] Furthermore, the partition 502 includes a partition main body 5021 connected to the support rod 503 and a partition connecting portion 5022 arranged in the middle of the partition main body 5021. The limit seat 501 is an L-shaped plate, including a horizontal part connected to the bridge and a vertical part connected to the partition. A connecting groove 5011 is provided in the middle of the vertical part. The partition connecting portion 5022 is inserted into the connecting groove 5011 and is fixedly connected through a fastener 508. Through the cooperative arrangement of the connecting groove 5011 and the partition connecting portion 5022, the up-and-down position of the partition 502 can also be adjusted, and the fastener 508 can fixedly connect the partition 502 and the limit seat 501.

[0063] Furthermore, as Figure 11 and Figure 12 shown in the figure, both the guide wheel assembly and the positioning wheel assembly include a connecting base 15. A number of stepped screw holes are provided on the connecting base 15. A pair of side plates 16 are screwed below the connecting base 15. A moving wheel is connected between the pair of side plates 16 through a roller pin shaft 21. The roller pin shaft 21 passes through one side plate 16 and extends to the other side plate 16 and is fixedly connected through an end cap 22 and a screw. With the wheel assembly adopting this structure, it is convenient for the assembly of the moving wheel and also convenient to integrally install it below the bridge or the connecting rod.

[0064] Further, the moving wheel includes an outer wheel 17 and a bearing 18 sleeved inside the outer wheel 17. Elastic washers 19 and sleeves 20 are respectively arranged on both sides of the bearing 18. The outer wheel 17 has a drum shape. The drum-shaped outer wheel 17 adapts to measured cast pipes with different diameter specifications through different contact points. The moving wheel realizes the positioning of the detection probe and the walking guidance in two usage scenarios.

[0065] Further, a method for detecting the wall thickness of a red pipe is as follows. The detection probe 8 is arranged inside the water-cooled probe body 2. The dry water-cooling system of the water-cooled probe body 2 is used to cool down the detection probe 8, and the working temperature of the detection probe 8 is controlled below 80 degrees Celsius. The water-cooled probe body 2 is installed in the bridge 1. The bridge 1 uses the moving wheel to walk along the outer wall of the red pipe. The detection probe 8 detects the wall thickness of the red pipe in the area passed by in real time. The detection probe 8 automatically transmits the measurement data to the control system in real time using the data cable.

[0066] This device and method consider the adaptive function for adjacent pipe diameter specifications, utilize functions such as dry water-cooling circulation and the protection of ceramic chips, specifically solve relevant technical problems, realize the on-line measurement of the wall thickness of the red pipe, and cooperate with the elastic adjustment component, positioning wheel component, guiding wheel component and control system to complete the work of data transmission and processing, and can form an automated system for wall thickness measurement, data processing and feedback control.

[0067] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A red tube wall thickness detection device, characterized in that, it includes a bridge frame formed into a frame shape. A water-cooled probe body is installed in the bridge frame. A detection probe is installed in the water-cooled probe body. The water-cooled probe body is used for cooling the detection probe. The detection end of the detection probe is arranged corresponding to the outer wall of the red tube to detect the wall thickness of the red tube. The data line connected to the other end of the detection probe is led out from the water-cooled probe body and connected to an external control system; a plurality of positioning wheel assemblies are provided below the bridge frame, and a plurality of elastic adjustment assemblies are provided on the bridge frame. The elastic adjustment assemblies are located above the positioning wheel assemblies. Link rods are respectively connected to both sides of the elastic adjustment assemblies. One end of each link rod is movably connected to the elastic adjustment assembly, and a guide wheel assembly is installed at the other end. The middle of the link rod is rotatably connected to the bridge frame so that a pair of the guide wheel assemblies can be unfolded or folded around the bridge frame; moving wheels are respectively provided below the positioning wheel assemblies and the guide wheel assemblies. At least three of the moving wheels are in a group and are abutted and supported on the outer wall of the red tube; the water-cooled probe body includes a water-cooled body. An installation through hole is provided in the middle of the water-cooled body. A probe seat and a protective cover with their ends abutted are connected in the installation through hole. The detection probe is installed in the probe seat; a ceramic sheet is installed on the end face of the protective cover. The ceramic sheet is used to protect the detection end of the detection probe; a plurality of annular cooling channels are formed between the outer circumferences of the probe seat and the protective cover and the inner circumference of the installation through hole. A plurality of annular circulating water channels are provided in the water-cooled body. The annular cooling channels are arranged corresponding to the annular circulating water channels and are provided with communication holes; The elastic adjustment assembly includes a limit seat connected to the bridge frame. An adjustable partition is provided on the limit seat. Support rods are respectively sleeved at both ends of the partition. Positioning plates, springs, supports and a plurality of adjusting nuts are respectively sleeved and connected on the support rods. The springs are located between the positioning plates and the supports. The adjusting nuts are respectively arranged on one side of the partition, the positioning plate and the support; a connecting ear is further provided on the support. The connecting ear is rotatably connected to the end of the link rod through a pin shaft; the partition includes a partition main body connected to the support rod and a partition connecting portion provided in the middle of the partition main body; the limit seat is an L-shaped plate, including a horizontal portion connected to the bridge frame and a vertical portion connected to the partition. A connecting groove is provided in the middle of the vertical portion. The partition connecting portion is inserted into the connecting groove and connected through a fastening member; both the guide wheel assembly and the positioning wheel assembly include a connecting base. A plurality of stepped screw holes are provided on the connecting base. A pair of side plates are screwed below the connecting base. A moving wheel is connected between the pair of side plates through a roller pin shaft. The roller pin shaft penetrates from one side plate to the other side plate and is fixedly connected through an end cap and a screw.

2. The red tube wall thickness detection device according to claim 1, characterized in that, The bridge frame includes a pair of mounting seats arranged front and back. The positioning wheel assembly is installed below the mounting seat, and the elastic adjustment assembly is installed in parallel above the mounting seat. The two ends of the mounting seat are respectively connected to the connecting rod through a pin shaft, and a pair of the connecting rods are symmetrically arranged on both sides of the elastic adjustment assembly.

3. The red tube wall thickness detection device according to claim 1, characterized in that, Mounting grooves are respectively provided at both ends of the mounting through hole. The end flanges of the probe head seat and the protective cover are respectively fixedly installed in the mounting grooves by screws, and a sealing ring is also provided between the mounting groove and the end flange; a shallow groove is provided at the outer end of the protective cover, and the ceramic chip is installed in the shallow groove and fixed by a pressing plate.

4. The red tube wall thickness detection device according to claim 1, characterized in that, An inlet channel and an outlet channel are provided in the water-cooling body. The inlet channel and the outlet channel are respectively communicated with the annular circulating water path. Water connectors and plugs are respectively provided at both ends of the inlet channel and the outlet channel; connecting edges are also provided on both sides of the end face of the water-cooling body, and the connecting edges are connected to the frame body of the bridge frame by screws.

5. The red tube wall thickness detection device according to claim 1, characterized in that, The moving wheel includes an outer wheel and a bearing sleeved inside the outer wheel. Elastic washers and sleeves are respectively provided on both sides of the bearing, and the outer shape of the outer wheel is drum-shaped.

6. A detection method of a red tube wall thickness detection device having any one of the red tube wall thickness detection devices according to claims 1 to 5, characterized in that, The detection probe is arranged in the water-cooled probe head body, and the dry water-cooling system of the water-cooled probe head body is used to cool down the detection probe, and the working temperature of the detection probe is controlled below 80 degrees Celsius; the water-cooled probe head body is installed in the bridge frame, and the bridge frame uses the moving wheel to travel along the outer wall of the red tube, and the detection probe detects the wall thickness of the red tube in the area passed in real time, and the detection probe automatically transmits the measurement data to the control system in real time through the data line.

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