Special rail and method based on high-speed rail wheel pair laser low-temperature cleaning

Abstract

The invention discloses a special rail and method based on high-speed rail wheel set laser low-temperature cleaning, a section is cut in the middle of a traditional fixed rail, a movable rail capable of swinging is arranged, a train can pass through the movable rail, a position can be reserved to lift a water tank, a hub rim on one side of a wheel set can be submerged into the water tank, and laser low-temperature cleaning is conducted. The laser-induced cavitation technology is used for low-temperature cleaning, the laser heat effect can be reduced, surface damage caused by the heat effect is avoided, the hub and the rim of the high-speed rail wheel set can be cleaned under the condition that the wheel set is not disassembled, and the cleaning period can be shortened.

Description

Technical Field

[0001] The present invention relates to the field of laser cleaning, and in particular to a special track and method for laser low-temperature cleaning of high-speed railway wheels. Background Art

[0002] High-speed rail wheels require regular maintenance. In recent years, laser cleaning has gradually replaced traditional cleaning methods and has occupied a place in this field. However, the existing laser cleaning methods are prone to thermal effects, which can cause cracks and other damage to the surface of the wheelset material. Therefore, there is an urgent need for a new type of laser low-temperature cleaning method that is difficult to produce thermal effects, as well as supporting special equipment. Summary of the invention

[0003] The purpose of the present invention is to propose a special track and method based on laser low-temperature cleaning of high-speed railway wheels to solve the technical problems existing in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a special track based on laser low-temperature cleaning of high-speed railway wheels, a moving track of the core part and a fixed track butted at both ends, wherein the fixed track is supported by a fixed track pillar below, the lower end of the fixed track pillar is connected to the base, the moving track pillar is connected below the moving track, the lower end of the moving track pillar is connected to one side of the base through a base rotating pair, and the other side of the base is connected to the trackless pillar through another group of base rotating pairs, a rotating pair is provided at the connection between the moving track pillar and the moving track, and can be temporarily connected to the upper end of the trackless pillar through the rotating pair, the moving track pillar, the trackless pillar and the base are triangularly distributed in cross section, after loosening the rotating pair between the moving track pillar and the trackless pillar, the moving track pillar and the trackless pillar can be swung to the vicinity of the ground through the base rotating pairs at their lower ends respectively, a water tank made of transparent material is placed above the water tank platform, the water tank platform is fixed above the base by a telescopic pillar, the water tank and the water tank platform can move up and down through the telescopic pillar, and there is a rectangular gap in the middle of the water tank platform, so that the laser directly below can penetrate the water tank platform and shoot into the water tank.

[0005] Furthermore, a group of vertically distributed T-shaped grooves are provided on the inner side surfaces of the water tank in two directions perpendicular to the moving track for inserting lenses. A rectangular frame is provided on the inner side of the bottom of the water tank, and the lens can be placed in the rectangular frame to limit the movement of the lens in the horizontal direction. There are notches on both sides of one group of opposite sides of the rectangular frame for taking out the lens. The laser incident direction is perpendicular to the moving track toward the inside of the water tank and perpendicular to the bottom of the water tank upward. The three laser incident directions correspond to the three installed lenses.

[0006] Furthermore, the telescopic support can be lifted by a hydraulic system or by a motor.

[0007] The present invention also provides a method based on laser low-temperature cleaning of high-speed railway wheelsets: comprising S1, a train passes through a cleaning area in a non-working state, and one side of the wheelset to be cleaned is directly above a water tank; S2, loosening the rotating pair between the moving track and the trackless support; S3, swinging the moving track and the trackless support to near the ground; S4, lifting the water tank platform and the water tank by means of telescopic supports, so that the lower half of the wheel rim hub on one side of the wheelset is immersed in the liquid in the water tank; S5, starting laser underwater low-temperature cleaning by means of laser induced cavitation technology, during which the wheelset is rotated to clean the entire area; S6, after cleaning is completed, lowering the water tank by means of telescopic supports; S7, lifting the moving track and the trackless support to a non-working position, and connecting the rotating pair; S8, the train moves forward.

[0008] Compared with the prior art, the present invention has the following beneficial effects:

[0009] The hub and rim of a high-speed rail wheelset can be cleaned without disassembling the wheelset, which can shorten the cleaning cycle. Low-temperature cleaning using laser-induced cavitation technology can reduce the laser thermal effect and avoid surface damage caused by the thermal effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0011] Figure 1 It is a schematic structural diagram of one side track of the present invention.

[0012] Figure 2 This is a schematic diagram of the structure of the water tank platform of the present invention.

[0013] Figure 3 It is a top view of the water tank of the present invention.

[0014] Figure 4 It is a structural schematic diagram of a water tank in the present invention.

[0015] Figure 5 Schematic diagram of the cylindrical lens of the present invention.

[0016] Figure numerals: 1. base; 2. base rotation pair; 3. moving track support; 4. telescopic support; 5. water tank platform; 6. trackless support; 7. water tank; 8. moving track; 9. fixed track; 10. fixed track support; 11. rectangular gap; 12. T-slot; 13. rectangular frame; 14. lens; 21. laser incident direction. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of specific embodiments of the present invention. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Reference Figure 1 The present invention provides a special track based on laser low-temperature cleaning of high-speed railway wheels, comprising a moving track 8 of a core part and a fixed track 9 butted at both ends, wherein the fixed track 9 is supported by a fixed track support 10 below, the lower end of the fixed track support 10 is connected to the base 1, the moving track 8 is connected to a moving track support 3 below, the lower end of the moving track support 3 is connected to one side of the base 1 through a base rotating pair 2, and the other side of the base 1 is connected to the trackless support through another group of base rotating pairs 2, a rotating pair is provided at the connection between the moving track support 3 and the moving track 8, and the upper end of the trackless support 6 can be temporarily connected to the moving track support 6 through the rotating pair, the moving track support 3, the trackless support 6 and the base 1 are triangularly distributed in cross section, after loosening the rotating pair between the moving track support 3 and the trackless support 6, the moving track support 3 and the trackless support 6 can be swung to the vicinity of the ground through the base rotating pairs 2 at their lower ends, respectively, a water tank 7 made of a transparent material is placed above a water tank platform 5, the water tank platform 5 is fixed above the base 1 by a telescopic support 4, the water tank 7 and the water tank platform 5 can move up and down through the telescopic support 4, and the telescopic support 4 is lifted by a hydraulic system.

[0019] refer to Figure 2 There is a rectangular gap 11 in the middle of the water tank platform 5, which allows the laser directly below to pass through the water tank platform 5 and enter the water tank 7.

[0020] refer to Figure 1 , Figure 3 and Figure 4 A group of vertically distributed T-shaped grooves 12 are respectively provided on the inner side surfaces of the water tank 7 in two directions perpendicular to the moving track 8, for inserting the lens 14. A rectangular frame 13 is provided on the inner side of the bottom of the water tank 7. The lens 14 can be placed in the rectangular frame 13 to limit the horizontal movement of the lens 14. There are notches on both sides of one group of opposite sides of the rectangular frame 13 for taking out the lens 14. The laser incident direction 21 is perpendicular to the moving track 8 toward the inside of the water tank 7 and perpendicular to the bottom of the water tank 7 upward. The three laser incident directions 21 correspond to the three lenses 14 installed.

[0021] Based on the above device, its supporting use steps are as follows: S1, the train passes through the cleaning area in the non-working state, and one side of the wheelset to be cleaned is directly above the water tank 7; S2, loosen the rotating pair between the moving track 8 and the trackless support 6; S3, swing the moving track 8 and the trackless support 6 to near the ground; S4, lift the water tank platform 5 and the water tank 7 through the telescopic support 4, so that the lower half of the wheel rim hub on one side of the wheelset is immersed in the liquid of the water tank 7; S5, use laser induced cavitation technology to start laser underwater low-temperature cleaning, during which the wheelset is rotated to clean the entire area; S6, after cleaning is completed, the water tank 7 is lowered through the telescopic support 4; S7, lift the moving track 8 and the trackless support 6 to the non-working position and connect the rotating pair; S8, the train moves forward.

[0022] The present invention utilizes laser induced cavitation technology for low-temperature cleaning, which can reduce laser thermal effects and avoid surface damage caused by thermal effects. It can also clean the hub and rim of a high-speed rail wheelset without disassembling the wheelset, thereby shortening the cleaning cycle.

[0023] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A special track based on laser low-temperature cleaning of high-speed rail wheels, characterized by: The core part includes a moving track (8) and a fixed track (9) connected at both ends, wherein the fixed track (9) is supported by a fixed track support (10) below, and the lower end of the fixed track support (10) is connected to the base (1). The moving track (8) is connected to the moving track support (3) below. The lower end of the moving track support (3) is connected to one side of the base (1) through a base rotating pair (2). The other side of the base (1) is connected to the trackless support through another set of base rotating pairs (2). A rotating pair is provided at the connection between the moving track support (3) and the moving track (8). The rotating pair can be temporarily connected to the upper end of the trackless support (6) through the rotating pair. The moving track support (3), the trackless support (6) and the base (1) are distributed in a triangular shape in cross section. After the rotating pair between the moving track support (3) and the trackless support (6) is released, the moving track support (3) and the trackless support (6) can be swung to the vicinity of the ground through the base rotating pairs (2) at their lower ends. A water tank (7) made of a transparent material is placed above the water tank platform (5). The water tank platform (5) is fixed above the base (1) by a telescopic support (4). The water tank (7) and the water tank platform (5) can be moved up and down by the telescopic support (4). A rectangular gap (11) is provided in the middle of the water tank platform (5), so that the laser light directly below can penetrate through the water tank platform (5) and be projected into the water tank (7).

2. A special track based on laser low-temperature cleaning of high-speed rail wheels as described in claim 1, characterized in that: The inner side surfaces of the water tank (7) in two directions perpendicular to the moving track (8) are each provided with a group of vertically distributed T-shaped grooves (12) for inserting the lens (14); a rectangular frame (13) is provided on the inner side of the bottom of the water tank (7); the lens (14) can be placed in the rectangular frame (13) for limiting the movement of the lens (14) in the horizontal direction; a group of opposite sides of the rectangular frame (13) are provided with notches on both sides for taking out the lens (14); the laser incident direction (21) is perpendicular to the moving track (8) toward the inside of the water tank (7) and perpendicular to the bottom of the water tank (7) and upward; the three laser incident directions (21) correspond to the three lenses (14) installed.

3. A special track based on laser low-temperature cleaning of high-speed rail wheels as described in claim 2, characterized in that: The telescopic support (4) can be lifted by a hydraulic system or by a motor.

4. A method for low-temperature laser cleaning of high-speed rail wheels, characterized in that: The method comprises the following steps: S1, in a non-working state, a train passes through a cleaning area, and one side of a wheelset to be cleaned is directly above a water tank (7); S2, loosening the revolving pair between the moving track (8) and the trackless support (6); S3, swinging the moving track (8) and the trackless support (6) to near the ground; S4, lifting the water tank platform (5) and the water tank (7) by means of the telescopic support (4), so that the lower half of the wheel rim hub on one side of the wheelset is immersed in the liquid in the water tank (7); S5, laser underwater low-temperature cleaning begins using laser-induced cavitation technology, during which the wheelset is rotated to clean the entire area; S6, after cleaning is completed, the water tank (7) is lowered by the telescopic support (4); S7, lifting the moving track (8) and the trackless support (6) to the non-working position and connecting the rotating pair; S8, the train moves forward.

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