Steel rail weld joint electromagnetic induction normalizing device
By designing an electromagnetic induction normalizing device for rail welds suitable for narrow and uneven environments, the problem of inconvenient operation of existing equipment in special environments is solved, and a stable and efficient rail weld heating effect is achieved.
Patent Information
- Application Number
- PCT/CN2025/081489
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-04-01
- Filing Date
- 2025-03-10
- Publication Date
- 2025-10-09
AI Technical Summary
Existing rail welding normalizing equipment is not suitable for on-site heating of long rails in underground tunnels or on the ground. It is inconvenient and unstable to operate and difficult to use in narrow or uneven working environments.
An electromagnetic induction normalizing device for rail welds was designed, which included a flatbed car, columns, brackets, suspension devices and induction heaters. The flatbed car was equipped with rollers and a cooling water tank, the columns provided support points, the brackets were height-adjustable, the suspension devices could raise and lower the heater, and the induction heater was divided into multiple parts for easy disassembly.
It achieves stable and reliable rail weld heating in narrow and uneven working environments, improves the adaptability and operation convenience of the equipment, and reduces costs.
Smart Images

Figure CN2025081489_09102025_PF_FP_ABST
Abstract
Description
Electromagnetic induction normalizing device for rail welds Technical Field
[0001] The utility model relates to the field of heat treatment of metal materials, in particular to an electromagnetic induction normalizing device for rail welds. Background Art
[0002] Nowadays, the laying of seamless steel rails is becoming more and more widespread. Most of them are formed by welding and heat treatment of short steel rails. Normalizing after welding is an indispensable link. However, since seamless steel rails need to be normalized on site, today's equipment is not suitable for some special working environments, such as tunnels, platforms, etc.
[0003] Chinese utility model patent publication CN111331041A discloses a split-and-joint contour-profiling electromagnetic induction heating device, which includes a mobile cart, a left box assembly, a right box assembly, a cooling water tank, and an induction power supply. The split-and-joint gear-connected contour-profiling electromagnetic induction heating devices intersect with each other to facilitate sufficient heating and more uniform surface temperature. The left and right boxes are provided, so the heating position is not restricted. In addition, a ball screw transmission device is provided to change the height in the direction perpendicular to the ground, which can be applied to rail tracks of different heights in different factories.
[0004] However, this device is not suitable for heating underground tunnels or long above-ground rails in project sites. During on-site operation, it is not only necessary to switch back and forth between the two rails at any time, but also requires fast movement and a stable support device, which is very inconvenient to use. Utility Model Content
[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an electromagnetic induction normalizing device for rail welds, comprising a flatbed car provided with rollers at the bottom and capable of moving on a track, the flatbed car being provided with a top plate and a bottom plate, and at least one side facing the direction of track movement being an open structure, a cooling water tank and a power supply being provided in the flatbed car; a column connected to the bottom of the top plate of the flatbed car, the column being provided with an upper plate shaft and a lower plate shaft; a bracket, the bracket comprising a telescopic rod, one end of the fixed side of the telescopic rod being connected to the lower plate shaft of the column, the telescopic rod being provided with a cantilever rod, one end of the cantilever rod being connected to the telescopic rod, and the other end being connected to the upper plate shaft of the column; an auxiliary supporting device being connected to the bottom front end of the fixed side of the telescopic rod of the bracket; an intermediate frequency generator being connected to one end of the movable side of the telescopic rod of the bracket through a suspension device, a second handle being provided at the top of the intermediate frequency generator; and an induction heater, one end of the induction heater being cooperatively connected to a mating assembly of the intermediate frequency generator.
[0006] Preferably, the bracket of the present invention includes a cantilever rod, a telescopic rod, an auxiliary hook and a locking ball. One end of the cantilever rod is fixedly connected to the telescopic rod, and the other end is connected to the upper plate shaft. The auxiliary hook is fixedly connected to the telescopic rod and is located in the lower middle part of the telescopic rod. The locking ball is fixedly connected to the telescopic rod and is located in the front part of the telescopic rod.
[0007] Preferably, the auxiliary support device of the present invention consists of a rotating hub and support legs. The rotating hub is fixedly connected to the telescopic rod. The rotating hub is a rectangular parallelepiped, and the middle part is a cross-shaped wide concave with a spherical concave surface inside. There are two support legs, which are fixedly connected to the lower part of the rotating hub.
[0008] Preferably, the suspension device of the present invention includes a first handle, a rectangular frame, a rotating roller, a hook and a steel wire rope. The first handle is fixedly connected to the rectangular frame and is located in the middle of the rectangular frame. The rectangular frame is a rectangular hollow structure, which is placed at the front end of the telescopic rod and is slidably connected to it. The rotating roller is located at the lower part of the rectangular frame and is wrapped with a steel wire rope. The other end of the steel wire rope is connected to the hook.
[0009] Preferably, the column of the present invention is further provided with a lighting lamp, and the lighting lamp is fixedly connected to the column via a connecting plate.
[0010] Preferably, the induction heater of the present invention is suspended in the air and sleeved on the rail weld.
[0011] Preferably, the induction heater of the present invention includes a left heating rod, a right heating rod, a connecting rod, a first hose and a second hose, the left heating rod includes a connecting plate and a water outlet, the right heating rod includes a water inlet, an upper connecting plate, a lower connecting plate and a water outlet, the connecting rod includes a connecting plate, the left heating rod and the right heating rod are fastened by bolts, wherein the left connecting plate is connected to the lower connecting plate, and the upper connecting plate is connected to the connecting plate, a U-shaped channel is provided inside the left heating rod and the right heating rod, the left heating rod is an open U-shaped tube, and the right heating rod is a closed U-shaped tube, a water outlet channel is provided inside the connecting rod, the connecting plate and the lower connecting plate are rectangular, and two bolt holes are provided on both sides of the central axis of the plate, the upper connecting plate and the connecting plate are rectangular, and two bolt holes are provided on one side of the plate.
[0012] Compared with the prior art, the utility model has the following advantages:
[0013] 1. The utility model designs a column on the flatbed car, which serves as a base column to provide a support point for the supporting device, so as to realize the left and right rotation of the supporting device, so that the normalizing device can work alternately between the two rails.
[0014] 2. The utility model designs a front support leg, which is divided into multiple levels and can adjust the height of the left and right legs to cope with uneven roads, mainly improving the stability of the support device.
[0015] 3. The utility model designs a movable suspension device, which can realize the raising and lowering of the induction heater coil.
[0016] 4. The utility model designs a new electromagnetic induction coil for an induction heater. The coil is divided into three parts and is easy to disassemble and assemble while ensuring the heat dissipation and sealing performance of the coil. It has low cost and good economic prospects. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a perspective view of the utility model device;
[0018] Figure 2 is a perspective view of the flatbed truck frame and column structure;
[0019] Figure 3 is a front view of the flatbed truck frame and column structure;
[0020] Figure 4 is a side view of the flatbed truck frame and column structure;
[0021] Figure 5 is a perspective view of the bracket structure;
[0022] Figure 6 is a side view of the support structure;
[0023] Figure 7 is a front view of the support structure;
[0024] FIG8 is a perspective view of the auxiliary support structure;
[0025] Figure 9 is a perspective view of the rotating hub structure;
[0026] Figure 10 is a perspective view of the support leg structure;
[0027] FIG11 is a front view of the auxiliary support structure;
[0028] Figure 12 is a perspective view of the suspension structure;
[0029] Figure 13 is a front view of the suspension structure;
[0030] Figure 14 is a perspective view of the hook;
[0031] FIG15 is a perspective view of an induction heater, an intermediate frequency generator, and a pipeline;
[0032] Figure 16 is a schematic diagram of the working process of the utility model device;
[0033] FIG17 is a left perspective view of the induction heater;
[0034] FIG18 is a front view of the induction heater;
[0035] FIG19 is a perspective view of the right side of the induction heater;
[0036] FIG20 is a left side view of the induction heater;
[0037] FIG21 is a schematic diagram of a water flow loop in the U-shaped tube, the first hose and the second hose in the induction heater.
[0038] In the figure: 1 flatbed truck; 1.1 top plate; 1.2 bottom plate; 1.3 cooling refrigerator; 1.4 power supply; 2 upright column; 2.1 upper plate axis; 2.2 lower plate axis; 2.3 lighting lamp; 3 bracket; 3.1 telescopic rod; 3.2 cantilever rod; 3.3 auxiliary hook; 3.4 locking ball; 4 auxiliary support; 4.1 rotating hub; 4.2 supporting leg; 4.3 middle cross wide concave; 4.4 inner spherical concave surface; 5 intermediate frequency generator; 5.1 suspension device; 5.2 first handle; 5.3 rectangular frame; 5.4 rotating roller Wheel; 5.5 Hook; 5.6 Wire rope; 6 Induction heater; 6.1 Left heating rod; 6.2 Right heating rod; 6.3 Connecting rod; 6.4 First hose; 6.5 Second hose; 6.6 Left connecting plate; 6.7 Water outlet; 6.8 Upper connecting plate; 6.9 Lower connecting plate; 6.10 Open U-shaped tube; 6.11 Closed U-shaped tube; 6.12 Water outlet channel; 6.13 Connecting plate; 6.14 Second handle; 6.15 Water inlet; 7 Track; 8 Water inlet; 8.1 Water outlet; 8.2 Pipeline. DETAILED DESCRIPTION
[0039] The present invention will be further described below with reference to specific embodiments. Example
[0040] The utility model provides an electromagnetic induction normalizing device for rail welds, comprising a flatbed trolley 1 with rollers at the bottom and capable of moving on a track, the flatbed trolley 1 being provided with a top plate 1.1 and a bottom plate 1.2, and at least one side facing the direction of movement of the track 7 being an open structure, a cooling water tank 1.3 and a power supply 1.4 being provided in the flatbed trolley 1; a column 2 connected to the bottom of the top plate 1.1 of the flatbed trolley 1, the column 2 being provided with an upper plate shaft 2.1 and a lower plate shaft 2.2; a bracket 3, the bracket 3 comprising a telescopic rod 3.1, one end of the telescopic rod 3.1 being fixed to the side thereof; A lower plate shaft 2.2 connected to the column, a cantilever rod 3.2 is provided on the telescopic rod 3.1, one end of the cantilever rod 3.2 is connected to the telescopic rod 3.1, and the other end is connected to the upper plate shaft 2.1 of the column; an auxiliary support device 4 is connected to the bottom front end of the fixed side of the telescopic rod 3.1 of the bracket 3; an intermediate frequency generator 5 is connected to one end of the movable side of the telescopic rod 3.1 of the bracket 3 through a suspension device 5.1, and a second handle 6.14 is provided on the top of the intermediate frequency generator 5; an induction heater 6, one end of the induction heater 6 is cooperatively connected to the intermediate frequency generator interlocking component.
[0041] The bracket 3 includes a cantilever rod 3.2, a telescopic rod 3.1, an auxiliary hook 3.3 and a locking ball 3.4. One end of the cantilever rod 3.2 is fixedly connected to the telescopic rod 3.1, and the other end is connected to the upper plate shaft 2.1. The auxiliary hook 3.3 is fixedly connected to the telescopic rod 3.1 and is located in the middle and lower part of the telescopic rod 3.1. The locking ball 3.4 is fixedly connected to the telescopic rod 3.1 and is located in the front part of the telescopic rod 3.1.
[0042] The auxiliary support device 4 consists of a rotating hub 4.1 and support legs 4.2. The rotating hub 4.1 is fixedly connected to the telescopic rod 3.1. The rotating hub 4.1 is a rectangular parallelepiped with a cross-shaped wide concave 4.3 in the middle and a spherical concave surface 4.4 inside. The support legs 4.2 are provided with two legs, which are fixedly connected to the lower part of the rotating hub 4.1.
[0043] The suspension device 5.1 includes a first handle 5.2, a rectangular frame 5.3, a rotating roller 5.4, a hook 5.5 and a wire rope 5.6. The first handle 5.2 is fixedly connected to the rectangular frame 5.3 and is located in the middle of the rectangular frame 5.3. The rectangular frame 5.3 is a rectangular hollow structure and is placed at the front end of the telescopic rod 3.1 and is slidably connected to it. The rotating roller 5.4 is located at the lower part of the rectangular frame 5.3 and is wound around the wire rope 5.6. The other end of the wire rope 5.6 is connected to the hook 5.5.
[0044] The column 2 is further provided with an illumination lamp 2.3, which is fixedly connected to the column 2 via a connecting plate.
[0045] The induction heater 6 is suspended in the air and is sleeved on the rail weld.
[0046] The induction heater 6 includes a left heating rod 6.1, a right heating rod 6.2, a connecting rod, a first hose and a second hose. The left heating rod 6.1 includes a left connecting plate 6.6 and a water outlet 6.7. The right heating rod 6.2 includes a water inlet 6.15, an upper connecting plate 6.8, a lower connecting plate 6.9 and a water outlet. The connecting rod includes a connecting plate 6.13. The left heating rod 6.1 and the right heating rod 6.2 are fastened by bolts, wherein the left connecting plate 6.6 is connected to the lower connecting plate 6.9, and the upper connecting plate 6. .8 is connected to the connecting plate 6.13, and a U-shaped channel is provided inside the left heating rod 6.1 and the right heating rod 6.2. The left heating rod 6.1 is an open U-shaped tube 6.10, and the right heating rod 6.2 is a closed U-shaped tube 6.11. A water outlet channel 6.12 is provided inside the connecting rod. The left connecting plate 6.6 and the lower connecting plate 6.9 are rectangular, and two bolt holes are provided on both sides of the central axis of the plate. The upper connecting plate 6.8 and the connecting plate 6.13 are rectangular, and two bolt holes are provided on one side of the plate.
[0047] The above is only a specific implementation method of this utility model, but the protection scope of this utility model is not limited to this. Any technician familiar with this technical field, within the technical scope disclosed by this utility model, can make equivalent substitutions or changes based on the technical solution and new concept of this utility model, which should be covered by the protection scope of this utility model.
Claims
1. A rail weld electromagnetic induction normalizing device, characterized in that include A flatbed car is provided with rollers at the bottom and can move on the track. The flatbed car has a top plate and a bottom plate, and at least one side facing the direction of track movement is an open structure. A cooling water tank and a power supply are provided in the flatbed car. A column connected to the bottom of the flatbed roof panel, wherein the column is provided with an upper plate shaft and a lower plate shaft; The bracket includes a telescopic rod, one end of the fixed side of the telescopic rod is connected to the lower plate shaft of the column, and a cantilever rod is provided on the telescopic rod, one end of the cantilever rod is connected to the telescopic rod, and the other end is connected to the upper plate shaft of the column; An auxiliary support device is connected to the bottom front end of the fixed side of the telescopic rod of the bracket; An intermediate frequency generator is connected to one end of the movable side of the telescopic rod of the bracket through a suspension device, and a second handle is provided on the top of the intermediate frequency generator; An induction heater, one end of which is cooperatively connected to the intermediate frequency generator interlocking component.
2. The electromagnetic induction normalizing device for rail welds according to claim 1, characterized in that The bracket includes a cantilever rod, a telescopic rod, an auxiliary hook and a locking ball. One end of the cantilever rod is fixedly connected to the telescopic rod, and the other end is connected to the upper plate shaft. The auxiliary hook is fixedly connected to the telescopic rod and is located in the lower middle part of the telescopic rod. The locking ball is fixedly connected to the telescopic rod and is located in the front part of the telescopic rod.
3. The electromagnetic induction normalizing device for rail welds according to claim 1, characterized in that The auxiliary support device consists of a rotating hub and support legs. The rotating hub is fixedly connected to the telescopic rod. The rotating hub is a rectangular parallelepiped with a cross-shaped wide concave in the middle and a spherical concave surface inside. There are two support legs fixedly connected to the lower part of the rotating hub.
4. The electromagnetic induction normalizing device for rail welds according to claim 1, characterized in that The suspension device includes a first handle, a rectangular frame, a rotating roller, a hook and a steel wire rope. The first handle is fixedly connected to the rectangular frame and is located in the middle of the rectangular frame. The rectangular frame is a rectangular hollow structure, placed at the front end of the telescopic rod and slidably connected to it. The rotating roller is located at the lower part of the rectangular frame and is wrapped with a steel wire rope. The other end of the steel wire rope is connected to the hook.
5. The electromagnetic induction normalizing device for rail welds according to claim 1, characterized in that The column is also provided with a lighting lamp, which is fixedly connected to the column via a connecting plate.
6. The electromagnetic induction normalizing device for rail welds according to claim 1, characterized in that The induction heater is suspended in the air and is sleeved on the rail weld.
7. The electromagnetic induction normalizing device for rail welds according to claim 1, characterized in that The induction heater includes a left heating rod, a right heating rod, a connecting rod, a first hose and a second hose, the left heating rod includes a connecting plate and a water outlet, the right heating rod includes a water inlet, an upper connecting plate, a lower connecting plate and a water outlet, the connecting rod includes a connecting plate, the left heating rod and the right heating rod are fastened by bolts, wherein the left connecting plate is connected to the lower connecting plate, and the upper connecting plate is connected to the connecting plate, a U-shaped channel is provided inside the left heating rod and the right heating rod, the left heating rod is an open U-shaped tube, and the right heating rod is a closed U-shaped tube, a water outlet channel is provided inside the connecting rod, the connecting plate and the lower connecting plate are rectangular, and two bolt holes are provided on both sides of the central axis of the plate, the upper connecting plate and the connecting plate are rectangular, and two bolt holes are provided on one side of the plate.
Citation Information
Patent Citations
Opening type water cooling rail induction normalizing coil and use method thereof
CN102995508A
Split-merging type copying electromagnetic induction heating device
CN111331041A
Steel rail welding seam electromagnetic induction normalizing device and using method thereof
CN118207403A
Open type rail weld joint induction normalizing device
CN204238081U
Normalizing equipment of steel rail welding convenient to remove
CN206635369U