移动式钢轨升温装置
By using a mobile rail heating device to perform non-contact eddy current heating on the rail head and web, the problem of rail temperature deviation during rail welding and additive repair is solved, achieving rapid and uniform temperature control and improving track safety and construction convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIEKE JINHUA TESTING CENT CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing rail welding and additive repair process, temperature changes cause the rail temperature to deviate from the design lock temperature, generating compressive or tensile stress, which affects the safety of the line. Furthermore, the existing heating methods are unstable or inconvenient for mobile construction.
Design a mobile rail heating device, including a flatbed trolley, a generator set, a transformer, an induction heating power supply, a coil lifting assembly, a rail contouring coil, and a controller. The device uses non-contact eddy current heating to uniformly heat the rail head and rail web until the rail temperature is locked.
It achieves rapid and uniform temperature rise of the rails, adapts to different climatic conditions, improves track safety and construction convenience, and conforms to the concept of low carbon and environmental protection.
Smart Images
Figure CN224513964U_ABST
Abstract
Claims
1. A mobile rail heating device, characterized in that Includes a flatbed trolley, generator set, transformer, induction heating power supply, coil lifting assembly, rail conforming coil, support frame, and controller, among which: The flatbed trolley includes a platform and four track wheels. The four track wheels are respectively installed at the four corners of the flatbed trolley and are located at the bottom of the flatbed trolley to drive the flatbed trolley to move on the track rail. The generator set, the transformer, and the induction heating power supply are respectively installed on the platform; The rail contouring coil is installed at the bottom of the bracket and is electrically connected to the transformer. The rail contouring coil is used to heat the rail head and rail web of the track rail. The coil lifting assembly includes a lead screw, a meshing worm gear, and a worm. The lead screw includes a connecting end and a telescopic end. The connecting end is fixed to the top of the bracket, and the telescopic end passes through the platform. The worm gear is sleeved on the outer side wall of the telescopic end and is helically engaged with the lead screw. One end of the worm is equipped with a hand crank. When the hand crank is rotated, the lead screw drives the bracket and the rail-shaped coil to rise and fall together. The controller is communicatively connected to the generator set, the transformer, the induction heating power supply, and the rail contouring coil.
2. The mobile rail heating apparatus of claim 1, wherein The flatbed trolley also includes a handle, on which a brake lever is provided.
3. The mobile rail heating apparatus of claim 1, wherein The transformer includes a copper busbar, which is electrically connected to the rail-contact coil via a flexible cable.
4. The mobile rail heating device according to claim 1, characterized in that, The rail contouring coil is made of copper and includes an arched plate, a current inlet plate, and a current outlet plate connected together. The current inlet plate is connected to the current output terminal of the transformer, and the current outlet plate is connected to the current input terminal of the transformer. When the rail contouring coil is energized, the current flows through the current inlet plate, the arched plate, and the current outlet plate in sequence. The arched plate is located on the outside of the rail head and rail web of the rail line and has gaps between it and the rail head and rail web to heat the rail head and rail web of the rail line.
5. The mobile rail heating apparatus of claim 1, wherein The generator set, the transformer, and the induction heating power supply are all equipped with a snap-fit platform at their bottoms. A snap-fit groove is provided on the platform, and the snap-fit platform snaps into the snap-fit groove.
6. The mobile rail heating apparatus of claim 1, wherein It also includes a positioning pin. A first positioning hole is provided on the snap-fit platform, and a second positioning hole is provided on the snap-fit groove. After the positioning pin passes through the first positioning hole and the second positioning hole in sequence, the snap-fit platform is installed in the snap-fit groove.
7. The mobile rail heating apparatus of claim 1, wherein The coil lifting assembly also includes a lifting platform and a housing. The housing has a mounting hole, and the worm gear passes through the mounting hole and is rotatably mounted on the housing. The worm wheel and the worm gear are both located inside the housing. The hand crank is located outside the housing. The bottom of the housing is mounted on the lifting platform, and the lifting platform is mounted on the platform.
8. The mobile rail heating apparatus of claim 1, wherein, The generator set, the transformer, the induction heating power supply, the coil lifting assembly, and the controller can all be detachably mounted on the platform, and the rail contouring coil can be detachably mounted on the bracket.