Steel rail welding seam electromagnetic induction normalizing intelligent temperature control device and using method thereof

Abstract

The invention particularly relates to a steel rail welding seam electromagnetic induction normalizing intelligent temperature control device and a using method thereof.The steel rail welding seam electromagnetic induction normalizing intelligent temperature control device comprises a flat car, rail wheels are arranged at the bottom of the flat car and walk on rails, a cantilever structure is arranged on the front portion of the flat car, a hydraulic lifting device is arranged on the cantilever structure in the flat car, and two normalizing devices are connected to the lower portion of the hydraulic lifting device; the normalizing device comprises a box frame, wherein the bottom of the box frame is provided with an embedding plate profiling the section of the steel rail; the plurality of laser devices and the plurality of camera devices are arranged on the inner wall of the box frame, and the camera devices are in signal connection with the display screen; a C-shaped rectangular frame plate with a downward opening is arranged on the inner side wall of the embedding plate, a pair of hydraulic clamping devices are symmetrically arranged on the inner walls of the two sides of the rectangular frame plate, and an infrared temperature measuring device is further arranged on the inner side wall of the embedding plate; a coil device is arranged on the inner wall of each box frame and comprises a profiling coil capable of being opened and closed. The device has the advantages that visual monitoring, high-precision positioning, self-adaptive stable clamping and full-automatic operation are realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of track mechanical equipment, in particular to a steel rail weld electromagnetic induction normalizing intelligent temperature control device and a use method thereof. BACKGROUND

[0002] In the construction of track seamless line, steel rail weld electromagnetic induction normalizing is the core process of eliminating welding residual stress and refining grain structure, which directly determines the service life of track and the safety of train operation. With the upgrading of intelligentization, high efficiency and scene adaptation of China's high-speed railway, the traditional normalizing process cannot meet the modern construction demand due to the following underlying defects, and the main problems are as follows: 1. Weld positioning problem: the traditional normalizing equipment needs manual weld positioning, which is easy to produce large error due to human factors, resulting in inaccurate normalizing position and affecting the quality of steel rail weld; 2. Coil space limitation problem: some traditional normalizing equipment uses hoisting device, and some uses high-temperature resistant asbestos pad, which is more cumbersome to operate, and the distance between coil and steel rail is unstable, which is easy to affect the heating effect; 3. Traditional coil installation and disassembly is inconvenient: some traditional coils are installed and fastened by bolts, which is manually operated, long construction time and affects the overall construction progress; 4. Single temperature control function: the temperature control of traditional normalizing mainly relies on the experience of operators, lacks precise real-time monitoring and feedback adjustment mechanism, and it is difficult to ensure the uniformity of temperature of weld at all places.

[0003] Therefore, it is urgent to design a device that can overcome the problems of large manual operation error, inaccurate temperature control, low efficiency, many safety hazards, and insufficient automation and intelligence of equipment in the prior art. SUMMARY

[0004] The present application aims to overcome the deficiencies of the prior art, and provides a steel rail weld electromagnetic induction normalizing intelligent temperature control device and a use method thereof, which optimizes the structure design and function integration, realizes the automation and intelligence improvement of the normalizing equipment, improves the normalizing efficiency, reduces the labor cost, enhances the safety and stability, and ensures that the quality of steel rail weld meets the high standard requirements.

[0005] In order to achieve the above object, a steel rail welded joint electromagnetic induction normalizing intelligent temperature control device is designed, which comprises: a flat car provided with track wheels at the bottom to run on the track; a cantilever structure is arranged at the front part of the flat car, a hydraulic lifting device is arranged on the cantilever structure in the flat car, and two normalizing devices are respectively connected below the hydraulic lifting device; the normalizing device comprises: a box frame provided with an embedded plate shaped according to the section of the steel rail at the bottom; a plurality of laser devices and a plurality of camera devices are arranged on the inner wall of the box frame, the laser devices emit laser beams to position the welded joint, and the camera devices are signal connected with a display screen arranged on the outer side of the box frame; a C-shaped rectangular frame plate with an opening downward is arranged on the inner side wall of the embedded plate, a pair of hydraulic clamping devices are symmetrically arranged on the inner walls of the two sides of the rectangular frame plate for clamping the steel rail from both sides, and an infrared temperature measuring device is further arranged on the inner side wall of the embedded plate; a coil device is arranged on the inner wall of each box frame, the coil device comprises an openable and closable profiled coil, and a temperature control center adjusts the power of the coil according to the data of the infrared temperature measuring device.

[0006] Preferably, the flat car comprises: a vehicle frame provided with a cavity, and a high-frequency power supply and a circulating water cooling unit are symmetrically arranged on the left and right sides of the cavity away from the hydraulic lifting device; a cylinder is vertically arranged at the cantilever structure of the front part of the flat car, a cylindrical cavity is arranged in the cylinder, a lifting mechanism of the hydraulic lifting device is arranged in the cylindrical cavity, and a dynamic sealing window through which a cross beam of the hydraulic lifting device passes is arranged on the side wall of the cylinder.

[0007] Preferably, the hydraulic lifting device comprises: a hydraulic lifting machine arranged in the cylinder and having an upwardly extending telescopic end, a cross beam is horizontally arranged on the top of the telescopic end of the hydraulic lifting machine, suspension rods are respectively arranged at the left and right ends of the cross beam, and the suspension rods are connected with connecting columns at the top of the normalizing device to drive the normalizing device to move up and down.

[0008] Preferably, the laser device comprises a bracket and a laser, and the laser is arranged on the bracket with adjustable angle to make the laser beam align with the welded joint to realize positioning and calibration.

[0009] Preferably, the camera device is fixed to the side of the box frame and signal connected with the display screen to display the image of the welded joint in real time.

[0010] Preferably, the hydraulic clamping device comprises a plurality of hydraulic clamping telescopic rods symmetrically arranged on the inner walls of the two sides of the rectangular frame plate to synchronously clamp the waist part of the steel rail.

[0011] Preferably, the application further comprises: the coil device comprises: two symmetrically arranged fixed plates arranged on the inner walls of the left and right sides of the box frame; two symmetrically arranged auxiliary support rods arranged in the front and back of the box frame and connected with the front and back inner walls of the box frame; two symmetrically arranged hydraulic telescopic rods transversely arranged in the positioning holes of the auxiliary support rods, and the two ends of the hydraulic telescopic rods are respectively connected with the fixed plates and the profiled coil to drive the profiled coil to open and close; the profiled coil is composed of a left coil and a right coil, and surrounds the weld of the steel rail after being closed, and the profiled coil is connected with the telescopic ends of the hydraulic telescopic rods through a rectangular support.

[0012] Preferably, the application further comprises: the infrared temperature measuring device comprises: a fixed support arranged on the front and back inner walls of the box frame and rotationally connected with the box frame through a hinge, and an infrared temperature measuring instrument arranged on the fixed support; a hydraulic adjusting machine arranged on the rectangular frame plate, and the hydraulic adjusting machine is rotationally connected with the infrared temperature measuring instrument and used for adjusting the inclination angle and height of the infrared temperature measuring instrument.

[0013] Preferably, the application further comprises: the temperature control center automatically adjusts the output power of the high-frequency power supply according to the preset temperature curve and the deviation of the measured temperature; the high-frequency power supply is electrically connected with the profiled coil, and a loop is formed when the left coil and the right coil are closed; the circulating water cooling unit is connected with the profiled coil through a condenser pipe to realize water cooling; the temperature control center is signal connected with the high-frequency power supply, the circulating water cooling unit, the coil device and the infrared temperature measuring device, and is used for controlling the start and stop of the device.

[0014] The application also provides a method for using the intelligent temperature control device for steel rail weld electromagnetic induction normalizing, which comprises the following steps: step 1, moving the flat car to the vicinity of the steel rail weld; step 2, starting the laser device and the camera device, observing and adjusting the position of the device through the display screen, and aligning the laser point with the weld; step 3, starting the hydraulic lifting device to lower the normalizing device to the embedded plate and embed the steel rail; step 4, starting the hydraulic clamping device to clamp the steel rail; step 5, starting the coil device to close the profiled coil around the weld; step 6, starting the high-frequency power supply and the circulating water cooling unit to perform normalizing treatment on the weld; step 7, monitoring the temperature in real time through the infrared temperature measuring device, and adjusting the power by the temperature control center; and step 8, after the preset temperature and time are reached, sequentially turning off the power supply, the cooling system, releasing the clamping device, and lifting the normalizing device to withdraw.

[0015] Compared with the prior art, the application has the following advantages: 1. Laser positioning: the laser cooperates with the camera, combines with the image recognition algorithm, accurately calculates the deviation between the coil and the weld, and automatically calibrates, which greatly improves the accuracy and efficiency compared with manual positioning.

[0016] 2. Automatic clamping and stabilization: The hydraulic clamping device is linked with the embedded plate, which automatically adjusts the clamping force according to the rail specifications, and cooperates with the three-dimensional limiting structure to ensure the stability of the normalizing device and the spatial distance between the coil and the rail, without the need for other equipment to limit the spatial distance of the coil.

[0017] 3. Automatic opening and closing: The hydraulic telescopic and connecting rod structure drives the coil to automatically open and close, reducing manual intervention, labor intensity and operation risk, and significantly shortening the normalizing time.

[0018] 4. Intelligent temperature control: The infrared temperature measurement device is used to monitor the rail weld rail top temperature in real time, and feedback to the temperature control center in time, and automatically adjust the power output according to the temperature adjustment algorithm. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 , working schematic diagram of the intelligent temperature control device for electromagnetic induction normalizing of rail welds; Figure 2 , front view of the intelligent temperature control device for electromagnetic induction normalizing of rail welds; Figure 3 , side view of the intelligent temperature control device for electromagnetic induction normalizing of rail welds; Figure 4 , schematic diagram of the flat car structure; Figure 5 , front view of the flat car; Figure 6 , schematic diagram of the lifting device structure; Figure 7 , front view of the lifting device; Figure 8 , front view of the internal structure of the normalizing device; Figure 9 , side view of the normalizing device; Figure 10 , schematic diagram of the hydraulic clamping mechanism of the normalizing device; Figure 11 , schematic diagram of the internal structure of the normalizing device; Figure 12 , schematic diagram of the coil device structure; Figure 13 , front view of the coil device; Figure 14 , enlarged schematic diagram of the coil device; Figure 15 , schematic diagram of the separated structure of the coil device; Figure 16 , schematic diagram of the support structure of the coil device; Figure 17 , schematic diagram of the left coil structure; Figure 18 , front view of the left coil; Figure 19 , side view of the left coil; Figure 20 , top view of the left coil; Figure 21 , schematic diagram of the rectangular support structure; Figure 22 , top view of the rectangular support; Figure 23 , front view of the rectangular support; Figure 24 , schematic diagram of the right coil device structure; Figure 25 , schematic diagram of the right coil structure; Figure 26 , schematic diagram of the infrared temperature measurement device structure; Figure 27 , top view of the infrared temperature measurement device; Figure 28 , schematic diagram of the infrared temperature measurement device structure;Figure 29 , infrared temperature measuring device hydraulic adjusting mechanism structure schematic view; Figure 30 , infrared temperature measuring device hydraulic adjusting mechanism top view; Figure 31 , infrared temperature measuring device hydraulic adjusting mechanism front view; Figure 32 , infrared temperature measuring device fixed support structure schematic view; Figure 33 , infrared temperature measuring device fixed support front view; Figure 34 , infrared temperature measuring device fixed support side view; Figure 35 , laser device structure schematic view.

[0020] In the figure: 1 track, 2 flat car, 2.1 high-frequency power supply, 2.2 circulating water cooling unit, 2.3 car frame, 2.4 cylinder, 2.5 cylinder cover, 3 lifting device, 3.1 hydraulic elevator, 3.2 cross beam, 3.3 suspension rod, 4 normalizing device, 4.1 box frame, 4.2 laser device, 4.3 camera device, 4.4 hydraulic clamping device, 4.5 coil device, 4.6 infrared temperature measuring device, 4.11 display screen, 4.12 fitting plate, 4.13 connecting column, 4.14 rectangular frame plate, 4.21 support, 4.22 laser, 4.51 fixed plate, 4.52 hydraulic telescopic rod, 4.53 auxiliary support rod, 4.54 rectangular support, 4.55 profiling coil, 4.551 left coil, 4.552 right coil, 4.61 fixed support, 4.62 infrared temperature measuring instrument, 4.63 hydraulic adjusting machine. DETAILED DESCRIPTION

[0021] To make the purpose, principle and structure of the present application clearer and more comprehensible, the following further elaborates in combination with the drawings and specific embodiments.

[0022] Referring to Figures 1-35 , the present application provides a steel rail weld electromagnetic induction normalizing intelligent temperature control device and its use method. Among them, the direction of the top plate extension of the flat car 2 is forward, the profile of the flat car 2 away from the top plate extension is backward, and the two sides of the flat car 2 are left and right.

[0023] Example 1: The structure of a steel rail weld electromagnetic induction normalizing intelligent temperature control device.

[0024] To realize the automatic and intelligent operation of the normalizing equipment, the steel rail weld electromagnetic induction normalizing intelligent temperature control device designed by the present application is composed of a flat car 2, a hydraulic lifting device 3, a normalizing device 4 and an existing track 1. As Figure 1 shown, there are two normalizing devices 4 on the track 1; the two normalizing devices 4 can work synchronously on the track.

[0025] Flatbed cart 2 is a four-wheeled track flatbed cart 2, integrating a drive motor and braking device, and can move autonomously on track 1. The structure of flatbed cart 2 mainly includes four track wheels, a rectangular frame 2.3, a cylindrical body 2.4, and a cylindrical cover 2.5. The power supply 2.1 and the circulating water cooling unit 2.2 are housed inside the frame 2.3, such as... Figure 1 As shown.

[0026] The frame 2.3 adopts a double-layer frame structure, consisting of two plates and four columns. The length of the top plate is about 1.5 times that of the bottom plate. The part of the top plate that extends beyond the bottom plate extends forward from the top of the frame to form a cantilever structure. The extended part is specially reserved to provide sufficient operating space for the hydraulic lifting device 3 and the normalizing device 4, ensuring that the components do not interfere with each other during the operation of the equipment.

[0027] The upper front end of the cantilevered structure at the top of the frame 2.3 is provided with a through hole. The cylinder 2.4 is placed in the through hole at the front end of the top plate of the frame 2.3. The cylinder 2.4 is a cylindrical structure with a cavity and is hollow inside. The cavity of the cylinder 2.4 is used to load the hydraulic lifting device 3. The top is provided with a cylinder cover 2.5 to facilitate the installation and disassembly of the hydraulic lifting device 3. The side wall of the cylinder 2.4 is symmetrically provided with a pair of rectangular through holes extending vertically. The rectangular through holes provide a channel for the lifting of the crossbeam 3.2.

[0028] It is worth noting that the front of the cylinder 2.4 is equipped with a pressure-resistant cylinder and a built-in high-precision lifting mechanism guide rail. The rectangular through-hole on the side wall of the cylinder 2.4 serves as a rectangular dynamic sealing window, which ensures the smooth vertical movement of the crossbeam 3.2 and effectively prevents dust and debris from entering the interior of the cylinder 2.4 and affecting the normal operation of the equipment. Its advantages lie in the pressure-resistant cylinder 2.4 at the front, the built-in lifting mechanism guide rail, and the rectangular dynamic sealing window on the side wall of the cylinder 2.4, allowing for the vertical movement of the crossbeam 3.2. The high-frequency power supply 2.1 and the circulating water-cooled unit 2.2 are located at the rear of the chassis 2.3. Through a reasonable counterweight design, they form a symmetrical weight distribution with the normalizing device 4 and the lifting device 3 at the front of the chassis 2.3, effectively balancing the center of gravity of the flatbed 2. The high-frequency power supply 2.1 and the circulating water-cooled unit 2.2 are located at the rear. The high-frequency power supply 2.1 provides a stable energy supply to the normalizing device 4, while the circulating water-cooled unit 2.2 cools the key components of the equipment. Working together, the optimized counterweight lowers the center of gravity of the flatbed 2, significantly improving driving stability and enabling smooth operation even in complex track environments. Figures 4-5 As shown. Preferably, the inlet and outlet of the circulating water chiller unit 2.2 can be connected by a sealed metal pipe, and the metal pipe can be extended and attached to any device on the frame 2.3. Refrigerant or circulating water is introduced into the sealed metal pipe to remove heat from the device through heat exchange and prevent the device from overheating and being damaged.

[0029] The hydraulic lifting device 3 consists of a hydraulic lift 3.1, a crossbeam 3.2, and a suspension rod 3.3. The components are connected by movable connecting bolts, quick-connect fittings, or other methods, allowing for convenient assembly and disassembly, and facilitating equipment maintenance and repair. The fixed end of the hydraulic lift 3.1 is located at the bottom of the inner cavity of the cylinder 2.4, and the telescopic end of the hydraulic lift 3.1 is upward-facing. The crossbeam 3.2 is detachably and horizontally positioned at the top of the telescopic end of the hydraulic lift 3.1. The crossbeam 3.2 is symmetrically positioned on the telescopic end, forming a left-right balance. Vertically positioned suspension rods 3.3 are provided at the bottom of both ends of the crossbeam 3.2. Preferably, the bottom of the suspension rod 3.3 can be configured as a downward-opening structure or a downward-opening threaded hole structure.

[0030] The core function of the hydraulic lifting device 3 is to support and precisely control the lifting action of the normalizing device 4. It can provide precise height adjustment support according to different rail types and operational requirements, ensuring that the normalizing device 4 maintains the optimal working distance from the rail weld. Figures 6-7 As shown. During operation, the hydraulic lift 3.1 drives the crossbeam 3.2 to rise and fall smoothly by precisely controlling the flow and pressure of the hydraulic oil. The suspension rod 3.3 is firmly connected to the normalizing device 4 to ensure the stability and reliability of the normalizing device during the lifting process. The two normalizing devices 4 are respectively set on the lower side of the left and right ends of the crossbeam 3.2 through the suspension rod 3.3.

[0031] The normalizing device 4 integrates functions such as weld positioning, rail clamping, automatic coil opening and closing, and intelligent temperature control. Through automation technology and intelligent control algorithms, it achieves efficient and precise operation of rail weld normalizing.

[0032] The normalizing device 4 mainly includes a frame 4.1, a laser device 4.2, a camera device 4.3, a hydraulic clamping device 4.4, a coil device 4.5, and an infrared temperature measuring device 4.6.

[0033] The frame 4.1 is a cuboid structure with an open bottom and plates on all sides and top. The bottom of the front and rear side plates of the frame 4.1 has a fitting plate 4.12 with a unique contoured through-hole structure, as shown in Figure 9. This structure can be precisely embedded into the rail 1, effectively restricting and guiding the normalizing device 4 to move vertically towards the rail 1, while accurately fixing the spatial distance between the normalizing device 4 and the rail, ensuring the stability and reliability of the device during normalizing operations. The inner wall of the fitting plate 4.12 has a rectangular frame plate 4.14, which is a C-shaped structure with a through front and rear and an open bottom. The rectangular frame plate 4.14 is mainly used to support the infrared temperature measuring device 4.6 and the hydraulic clamping device 4.4. The reasonable layout design ensures that the components are firmly installed and do not interfere with each other.

[0034] The top surface of the frame 4.1 is provided with a connecting post 4.13 and two circular through holes. The connecting post 4.13 is used to connect with the suspension rod 3.3 to achieve a stable connection between the normalizing device 4 and the hydraulic lifting device 3. Preferably, the connecting post 4.13 can be sleeved or bolted to the suspension rod 3.3. The two circular through holes are respectively used to pass through the power line connected to the high-frequency power supply 2.1 and the cold water pipe connected to the circulating water chiller unit 2.2, providing the necessary energy supply and cooling guarantee for the normalizing device 4, as shown in Figure 11. The front side of the outer side of the frame 4.1 is provided with a display screen 4.11. The display screen 4.11 has high-definition display and intelligent interactive functions, and can display various parameters and image information during the positioning, clamping and normalizing process of the normalizing device in real time, which is convenient for operators to remotely monitor and operate, as shown in Figure 3.

[0035] The laser device 4.2 includes a bracket 4.21 and a laser 4.22. The laser 4.22 is fixed to the inner wall of the frame 4.1 via the bracket 4.21. The bracket 4.21 is a multi-degree-of-motion bracket, which allows for flexible adjustment of the laser 4.22. Preferably, the bracket 4.21 can be a universal ball joint structure bracket or a hinge bracket. The laser beam emitted by the laser 4.22 can form a clear spot on the top of the rail. By precisely adjusting the position and angle of the laser device 4.2, the spot can be accurately focused on the middle of the weld, thereby achieving rapid and precise positioning of the normalizing device 4 and laying the foundation for subsequent normalizing operations.

[0036] The camera device 4.3 includes a camera bracket and a camera. The camera is fixed to the inner wall of the frame 4.1 via the camera bracket and has an adjustable function. The camera can acquire image information of the rail weld area in real time. The camera is connected to the display screen 4.11 and transmits the image information to the display screen 4.11. Operators can intuitively observe the weld positioning, clamping process, and normalizing process through the display screen 4.11 without the need for close on-site observation, effectively avoiding potential dangers such as high temperature and radiation to operators, while improving the safety and efficiency of the operation.

[0037] Hydraulic clamping devices 4.4 are installed on the left and right inner walls of the rectangular frame plate 4.14. Each hydraulic clamping device 4.4 has four hydraulic clamping telescopic rods, which are divided into two groups, with two hydraulic clamping telescopic rods in each group. The two hydraulic clamping telescopic rods in each group are symmetrically arranged left and right, and the hydraulic clamping telescopic rods are controlled by synchronous control technology. Preferably, the hydraulic clamping telescopic rods are installed on the rectangular frame plate 4.14 at the contoured positions of the fitting plate 4.12 and the rail web of track 1. Upon startup, the four hydraulic clamping telescopic rods operate simultaneously. Because the mating plate 4.12 conforms to the rail 1, and the hydraulic clamping telescopic rods are positioned at the corresponding mating plate 4.12 and rail web conforming locations, they can precisely clamp onto the rail web, applying a stable clamping force to the normalizing device 4 from multiple directions. Since the hydraulic clamping telescopic rods are synchronously controlled, when the central axis of symmetry of the normalizing device 4 is not perpendicular to or parallel to the rail 1, it indicates a positioning deviation. At this point, the synchronous extension of the hydraulic clamping telescopic rods on both sides of the rail web of rail 1, through the reaction force of the thrust, pushes the normalizing device 4 to a position symmetrical about the rail 1 as its center of symmetry, achieving precise positioning. This effectively limits the horizontal movement deviation of the normalizing device 4, preventing deviations caused by vibration, displacement, and other factors during the normalizing process, thereby ensuring the stability and consistency of the normalizing quality. This automated operation not only improves work efficiency but also reduces errors and labor intensity associated with manual operation.

[0038] The coil device 4.5 includes a fixed plate 4.51, a hydraulic telescopic rod 4.52, an auxiliary support rod 4.53, a rectangular bracket 4.54, and a contoured coil 4.55, wherein the contoured coil 4.55 is composed of a left coil 4.551 and a right coil 4.552, as shown in Figure 11.

[0039] The coil assembly 4.5 is securely fixed within the frame 4.1 of the normalizing device 4 via a fixing plate 4.51 and an auxiliary support rod 4.53. The fixing plate 4.51 is mounted on the left and right inner side walls of the frame 4.1. The auxiliary support rod 4.53 extends longitudinally, with its front and rear sections connected to the front and rear inner side walls of the frame 4.1, respectively. A through hole is provided in the middle of the auxiliary support rod 4.53. The fixed end of the hydraulic telescopic rod 4.52 is connected and fixed to the fixing plate 4.51, and passes through the through hole of the auxiliary support rod 4.53, forming a reliable two-section support to ensure the stability of the hydraulic telescopic rod 4.52 during operation. A rectangular bracket 4.54 is provided at the movable telescopic end of the hydraulic telescopic rod 4.52. A contoured coil 4.55 is mounted on the rectangular bracket 4.54. The main function of the hydraulic telescopic rod 4.52 is to drive the contoured coil 4.55 to perform closing and opening operations, as shown in Figures 12-14.

[0040] The front end of the hydraulic telescopic rod 4.52 is connected to the rectangular bracket 4.54. The upper end of the rectangular bracket 4.54 has a hollow cuboid structure that mates with the contour coil. A circular power-conducting hole is located at the top for connecting the power cord; the bottom has an open slotted cuboid to support the bottom of the contour coil. This unique design allows the rectangular bracket 4.54 to both engage and support the contour coil from above, providing stable support. The rectangular bracket 4.54 is made of high-temperature resistant ceramic material or other high-performance high-temperature resistant materials, enabling it to operate stably for extended periods in high-temperature environments, ensuring the reliability and service life of the coil device 4.5, as shown in Figure 20.

[0041] The contour coil 4.55 includes a left coil 4.551 and a right coil 4.552.

[0042] The left coil 4.551 is designed to mimic the shape of the rail 1, precisely matching the outer contour of the rail. Its upper extension adapts to the rectangular bracket 4.54, while the middle section has a curved, irregular shape to fit snugly against the rail surface. The bottom has a protruding interface that connects to the recessed interface at the bottom of the right coil 4.552. The left coil 4.551 has two circular channels at its end, allowing the coolant from the circulating water-cooling unit 2.2 to circulate once within each coil, effectively removing heat generated during heating and preventing damage from overheating. The top of the left coil 4.551 has a circular groove for connecting to the high-frequency power supply 2.1 via a power cord, enabling efficient power transmission.

[0043] The right coil 4.552 and the left coil 4.551 are symmetrically arranged and structurally symmetrical. The bottom of the right coil 4.552 has a concave interface, which cooperates with the protruding interface at the bottom of the left coil 4.551 to form a more robust closed loop when assembled. The remaining structure and performance parameters are the same as the left coil 4.551. This innovative design of the concave and convex interfaces of the left and right coils ensures perfect alignment when closed, effectively preventing misalignment and guaranteeing the uniformity and stability of electromagnetic induction heating, thereby improving the normalizing effect.

[0044] The 4.55 profile coil is characterized by its ability to completely separate the left and right coils, and the closure process requires no manual installation. It utilizes a hydraulic telescopic rod 4.52 for automated mechanical operation, significantly improving installation and disassembly efficiency. When the left and right coils are fully closed, the bottom is completely fitted, leaving a gap at the top. When energized, this creates a conductive path, generating an alternating magnetic field that efficiently normalizes the rail welds. This automated operation not only improves work efficiency but also eliminates the dangers of workers operating under high-voltage conditions, ensuring operator safety.

[0045] The infrared temperature measuring device 4.6 includes a fixed support 4.61, an infrared thermometer 4.62, and a hydraulic regulator 4.63. The fixed support 4.61 is mounted on the front and rear inner side walls of the frame 4.1, and has two symmetrical ear plate structures. The hydraulic regulator 4.63 is vertically mounted on a rectangular frame plate 4.14, and has two symmetrical ear plate structures at the top of its telescopic end. The infrared thermometer 4.62 has a T-shaped bracket on its front and rear sides, respectively. The two ends of the crossbars of the front and rear T-shaped brackets are respectively located in the ear plate structures of the hydraulic regulator 4.63 and the fixed support 4.61, forming a rotational limiting fixation. The telescopic end of the hydraulic regulator 4.63 moves up and down, driving the front T-shaped bracket of the infrared thermometer 4.62 to move up and down through the ear plate structures, and causing the infrared thermometer 4.62 to rotate up and down around the rear T-shaped bracket. The primary function of the infrared thermometer 4.62 is to monitor the temperature at the top of the rail weld in real time and feed the temperature data back to the temperature control center. Based on the feedback temperature, the temperature control center automatically adjusts the power output through an intelligent control algorithm, thereby precisely regulating the coil heating temperature and achieving accurate temperature control during the normalizing process.

[0046] The infrared temperature measuring device 4.6 includes a hydraulic adjuster 4.63, which can flexibly adjust the height and angle of the infrared thermometer 4.62 according to different environmental conditions and operational needs, ensuring that the infrared thermometer 4.62 can accurately align with the location of the rail weld and measure the temperature of the top of the rail weld. The bottom of the infrared thermometer 4.62 is equipped with a T-shaped bracket, which cooperates with the double-ear bracket of the hydraulic adjuster 4.63. Driven by the hydraulic adjuster 4.63, the infrared thermometer 4.62 can be smoothly raised and lowered and its position precisely adjusted.

[0047] Example 2: A method for using an intelligent temperature control device for electromagnetic induction normalizing of rail welds.

[0048] Step S1: Equipment transportation and positioning.

[0049] Transport the electromagnetic induction normalizing intelligent temperature control device to the vicinity of the rail weld using a flatbed truck, ensuring the truck's path is unobstructed. As the flatbed truck approaches the weld, slow down to maintain an initial distance of 2-3 meters between the device and the weld, allowing for subsequent precise adjustments.

[0050] Step S2: Laser precise positioning.

[0051] The laser positioning device is activated, and two lasers emit laser beams to form light spots on the rail. The operator slowly adjusts the flatbed's position by controlling its horizontal movement mechanism. During this process, the display screen on the side of the normalizing frame is observed in real time; the screen synchronously displays the relative position of the laser spots to the weld seam. When both laser spots are completely concentrated at the rail weld seam, it indicates that the normalizing device is accurately positioned. At this point, the flatbed's position is locked to prevent displacement during subsequent operations.

[0052] Step S3: The device is lowered and engaged.

[0053] After confirming the normalizing device is accurately positioned, activate the hydraulic lifting device. The hydraulic lifting device lowers the normalizing device onto the rail at a set speed, typically controlled at 1-2 cm per second, depending on the device's weight and the rail height. As the normalizing device approaches the rail, the two mating plates automatically match and engage with the rail head and bottom contours, ensuring a tight fit between the mating plates and the rail surface. If large gaps or loose engagement occur, the lowering position and angle of the hydraulic lifting device must be readjusted.

[0054] Step S4: Hydraulic clamping for stabilization.

[0055] The hydraulic clamping device is activated, and the system automatically engages four hydraulic mechanisms. These mechanisms work synchronously, clamping the rail web according to preset clamping force parameters. During clamping, the display screen shows the pressure values ​​of each hydraulic mechanism in real time. When the pressure values ​​of all four hydraulic mechanisms reach the preset range and remain stable, it indicates that the normalizing device has been firmly secured to the rail. If the pressure of any hydraulic mechanism is abnormal, the system automatically alarms and stops the clamping operation. The hydraulic lines and clamps must be checked, and the fault rectified before attempting the clamping operation again.

[0056] Step S5: Coil closure adjustment.

[0057] The automatic coil closing device is activated, and the contour coils on both sides advance synchronously towards the center of the weld at the same speed and displacement. During the advancement process, the camera device monitors the relative position of the coil and the weld in real time and transmits the image information to the control system. When the coil is accurately wrapped around the weld and maintains the standard induction heating distance from the weld, the coil automatically stops moving, completing the closing adjustment.

[0058] Step S6: Normalizing and cooling are started simultaneously.

[0059] The power supply is activated to provide alternating current to the contour coil, generating an alternating magnetic field. This magnetic field, through electromagnetic induction, heats and normalizes the rail weld. Simultaneously, the cooling circulation system automatically activates, with coolant circulating at a set rate through the cooling pipes to remove heat generated by the coil. During the normalizing process, the pressure gauges and temperature sensors of the cooling system are monitored in real time to ensure stable coolant pressure. Any abnormalities are promptly investigated to identify blockages in the cooling pipes or pump malfunctions.

[0060] Step S7: Intelligent temperature control adjustment.

[0061] Adjust the focusing position of the infrared thermometer to accurately align it with the top of the weld. The infrared thermometer collects real-time temperature data from the top of the weld and transmits the data to the temperature control center. The intelligent control system built into the temperature control center compares and analyzes the real-time temperature data with the preset normalizing temperature curve. When the actual temperature deviates from the preset temperature, the temperature control center automatically adjusts the output power of the power supply to achieve precise regulation of the coil temperature, ensuring that the weld temperature always meets the normalizing process requirements.

[0062] Step S8: Operation completed and evacuation.

[0063] When the weld reaches the preset temperature and time parameters, the system indicates that the operation is complete. The operator then sequentially shuts off the power supply and cooling system. After the coolant stops circulating, the operator activates the coil opening and hydraulic clamping release functions to separate the coil and release the rail via the hydraulic mechanism. Subsequently, the normalizing device is raised using the hydraulic lifting device and removed from the rail.

[0064] After completing the above tasks, you can move on to the next work site and repeat the work, which greatly improves work efficiency.

[0065] The above description is merely a specific embodiment of the invention, but the scope of protection of the invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in the invention, based on the technical solutions and novel concepts of the invention, should be covered within the scope of protection of the invention.

Claims

1. A smart temperature control device for electromagnetic induction normalizing of rail welds, characterized in that, include: Flatbed cart (2) with track wheels at the bottom for running on track (1); the front of flatbed cart (2) has a cantilever structure, and a hydraulic lifting device (3) is installed on the cantilever structure inside flatbed cart (2). Two normalizing devices (4) are respectively connected below the hydraulic lifting device (3). The normalizing device (4) includes: The frame (4.1) has a mating plate (4.12) at the bottom that conforms to the cross-section of the rail. Several laser devices (4.2) and several camera devices (4.3) are installed on the inner wall of the frame (4.1). The laser devices (4.2) emit laser beams to locate the weld seam, and the camera devices (4.3) are connected to the display screen (4.11) on the outer side of the frame (4.1). The inner wall of the mating plate (4.12) has a C-shaped rectangular frame plate (4.14) with the opening facing downward. A pair of hydraulic clamping devices (4.4) are symmetrically installed on the inner walls of the rectangular frame plate (4.14) to clamp the rail from both sides. The inner wall of the mating plate (4.12) is also equipped with an infrared temperature measuring device (4.6). Each rack (4.1) has a coil device (4.5) on its inner wall, which includes an openable contoured coil (4.55) and a temperature control center such as an infrared thermometer (4.6) that adjusts the coil power.

2. The intelligent temperature control device for electromagnetic induction normalizing of rail welds as described in claim 1, characterized in that, The flatbed vehicle (2) includes: The frame (2.3) has an internal cavity. A high-frequency power supply (2.1) and a circulating water cooling unit (2.2) are symmetrically arranged on the left and right sides of the cavity away from the hydraulic lifting device (3). The cylinder (2.4) is vertically inserted through the cantilever structure at the front of the flatbed (2). The cylinder (2.4) has a cylindrical cavity inside, and the lifting mechanism of the hydraulic lifting device (3) is located in the cylindrical cavity. The side wall of the cylinder (2.4) has a dynamic sealing window through which the crossbeam (3.2) of the hydraulic lifting device (3) passes.

3. The intelligent temperature control device for electromagnetic induction normalizing of rail welds as described in claim 1, characterized in that, The hydraulic lifting device (3) includes: A hydraulic lift (3.1) is installed inside the cylinder (2.4) with its telescopic end facing upward. A crossbeam (3.2) is horizontally installed at the top of the telescopic end of the hydraulic lift (3.1). Suspension rods (3.3) are provided at the left and right ends of the crossbeam (3.2). The bottom of the suspension rods (3.3) is connected to the connecting column (4.13) at the top of the normalizing device (4), which drives the normalizing device (4) to move up and down.

4. The intelligent temperature control device for electromagnetic induction normalizing of rail welds as described in claim 1, characterized in that, The laser device (4.2) includes a bracket (4.21) and a laser (4.22). The laser (4.22) is mounted on the adjustable bracket (4.21) to align the laser beam with the weld seam for positioning and calibration.

5. The intelligent temperature control device for electromagnetic induction normalizing of rail welds as described in claim 1, characterized in that, The camera device (4.3) is fixed to the side of the frame (4.1) and connected to the display screen (4.11) for real-time display of weld images.

6. The intelligent temperature control device for electromagnetic induction normalizing of rail welds as described in claim 1, characterized in that, The hydraulic clamping device (4.4) includes several hydraulic clamping telescopic rods, symmetrically distributed on the inner walls of both sides of the rectangular frame plate (4.14), for synchronously clamping the web of the rail.

7. The intelligent temperature control device for electromagnetic induction normalizing of rail welds as described in claim 1, characterized in that, The coil assembly (4.5) includes: Two symmetrically arranged fixing plates (4.51) are respectively installed on the inner walls of the left and right sides of the frame (4.1); Two symmetrically arranged auxiliary support rods (4.53) are arranged in the front and rear directions inside the frame (4.1) and connected to the front and rear inner walls of the frame (4.1); Two symmetrically arranged hydraulic telescopic rods (4.52) are respectively transversely inserted into the positioning holes opened in the auxiliary support rod (4.53). The two ends of the hydraulic telescopic rods (4.52) are respectively connected to the fixing plate (4.51) and the contouring coil (4.55) to drive the contouring coil (4.55) to open and close. The contour coil (4.55) consists of a left coil (4.551) and a right coil (4.552). After closing, it surrounds the weld seam of the rail. The contour coil (4.55) is connected to the telescopic end of the hydraulic telescopic rod (4.52) through a rectangular bracket (4.54).

8. The intelligent temperature control device for electromagnetic induction normalizing of rail welds as described in claim 1, characterized in that, The infrared temperature measuring device (4.6) includes: Fixed supports (4.61) are installed on the inner walls of the front and rear sides of the frame (4.1), and are rotatably connected to the frame (4.1) via hinges. The infrared thermometer (4.62) is mounted on a fixed support (4.61); The hydraulic regulator (4.63) is mounted on the rectangular frame plate (4.14). The hydraulic regulator (4.63) is rotatably connected to the infrared thermometer (4.62) and is used to adjust the tilt angle and height of the infrared thermometer (4.62).

9. The intelligent temperature control device for electromagnetic induction normalizing of rail welds as described in claim 1, characterized in that, The temperature control center automatically adjusts the output power of the high-frequency power supply (2.1) according to the deviation between the preset temperature curve and the measured temperature; The high-frequency power supply (2.1) is electrically connected to the contour coil (4.55), and a circuit is formed when the left coil (4.551) and the right coil (4.552) are closed; The circulating water chiller (2.2) and the contour coil (4.55) are connected by condenser tubes to achieve water cooling. The temperature control center is connected to the high-frequency power supply (2.1), the circulating water chiller (2.2), the coil device (4.5), and the infrared temperature measuring device (4.6) for signal control of the device's start and stop.

10. A method for using the intelligent temperature control device for electromagnetic induction normalizing of rail welds as described in any one of 1-9, characterized in that, Includes the following steps: Step 1: Move the flatbed cart (2) to the vicinity of the rail weld; Step 2: Activate the laser device (4.2) and camera device (4.3), observe and adjust the device position through the display screen (4.11) to align the laser point with the weld seam; Step 3: Start the hydraulic lifting device (3) and lower the normalizing device (4) until the fitting plate (4.12) fits into the rail; Step 4: Activate the hydraulic clamping device (4.4) to clamp the rail; Step 5: Start the coil device (4.5) to close the contour coil (4.55) around the weld. Step 6: Start the high-frequency power supply (2.1) and the circulating water cooling unit (2.2) to perform normalizing treatment on the weld; Step 7: Monitor the temperature in real time using an infrared temperature measuring device (4.6), and adjust the power as needed by the temperature control center; Step 8: After reaching the preset temperature and time, turn off the power and cooling system in sequence, loosen the clamping device, raise the normalizing device and leave.

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