A railway frog grinding device and grinding method

Abstract

The present invention belongs to the technical field of railway frog grinding and provides a railway frog grinding device and grinding method. One railway frog grinding device includes a connecting frame, each end of which is fixedly connected to a first bidirectional electric telescopic rod, the telescopic portions of which are both rotatably connected to travel rollers, the telescopic end of one of the first bidirectional electric telescopic rods being fixedly connected to a rotary motor, the output shaft of which is fixedly connected to the central axis of a travel roller; the connecting frame is fixedly connected to a first electric telescopic sleeve, the telescopic portion of which is connected to a detection assembly. In the present invention, the control system can control a scraping mechanism, a fine grinding mechanism, and a cooling mechanism to remove slag and grind the railway frog sidewalls based on the curvature and surface roughness of the railway frog sidewalls.

Description

Technical Field

[0001] The invention belongs to the technical field of railway frog grinding, and in particular relates to a railway frog grinding device and a grinding method. Background Art

[0002] A railway frog is a device used to cross tracks, allowing train wheels to switch from one track to another. It consists of a fork, wing rails, and connecting parts. Railway frogs are categorized by their planar form: straight frogs and curved frogs. They are also categorized by their structural type: fixed frogs and movable frogs.

[0003] After the railway frog is formed, its surface needs to be polished. Generally, the railway frog polishing device polishes the side wall of the railway frog in sections through the mobile device polishing roller.

[0004] However, since the railway frog is generally V-shaped and the side wall of the railway frog has a certain curvature, when grinding, when the curvature of the side wall of the railway frog is large, it is difficult for the grinding roller and the railway frog to effectively fit together and form a stable extrusion pressure throughout the entire process. This not only affects the grinding efficiency of the grinding roller on the side wall of the railway frog, but also the continuous change of the extrusion pressure between the grinding roller and the railway frog has an adverse effect on the grinding accuracy of the railway frog. Summary of the Invention

[0005] The object of the present invention is to provide a railway frog grinding device and a grinding method, aiming to solve the technical problem in the prior art that when the curvature of the railway frog side wall is large, the grinding efficiency and grinding accuracy of the railway frog are adversely affected.

[0006] The present invention is achieved by providing a railway frog grinding device, comprising a connecting frame, wherein both ends of the connecting frame are fixedly connected to a first bidirectional electric telescopic rod, the telescopic portions on both sides of the first bidirectional electric telescopic rod are rotatably connected to travel rollers, the telescopic end of one of the first bidirectional electric telescopic rods is fixedly connected to a rotary motor, and the output shaft of the rotary motor is fixedly connected to the central axis of one of the travel rollers;

[0007] The connecting frame is fixedly connected to a No. 1 electric telescopic sleeve, and the telescopic portion of the No. 1 electric telescopic sleeve is connected to a detection component, which can detect the curvature and surface roughness of the side wall of the railway frog. A limit assembly is provided on one side of the detection assembly, and the limit assembly can limit and fix the connecting frame and the railway frog;

[0008] The connecting frame is fixedly connected to a No. 2 electric telescopic sleeve, the telescopic portion of the No. 2 electric telescopic sleeve is fixedly connected to a No. 2 bidirectional electric telescopic rod, the telescopic portions on both sides of the No. 2 bidirectional electric telescopic rod are elastically and movably connected to a connecting mechanism, the two ends of the connecting mechanism are respectively connected to a scraping mechanism and a fine grinding mechanism, under the cooperation of the connecting mechanism, the scraping mechanism and the fine grinding mechanism can always maintain contact with the side wall of the railway frog, and the scraping mechanism and the fine grinding mechanism are commonly connected to a cooling mechanism capable of cooling them;

[0009] The scraping mechanism and the fine grinding mechanism are electrically connected to a control system. According to the curvature and surface roughness of the side wall of the railway frog, the control system can control the scraping mechanism, the fine grinding mechanism and the cooling mechanism to remove slag and grind the side wall of the railway frog.

[0010] A pressure sensor is provided between the central rotating shaft of the traveling roller and the telescopic part of the No. 1 bidirectional electric telescopic rod. When the value of the pressure sensor is less than the set value of the control system, the No. 1 bidirectional electric telescopic rod starts to retract, so that the traveling roller always maintains a stable pressure with the railway switch.

[0011] Further technical solution: the connecting mechanism includes a connecting shaft, a slider, a connecting seat and a spring;

[0012] The telescopic part of the No. 2 bidirectional electric telescopic rod can slide and telescope elastically, and the telescopic part of the No. 2 bidirectional electric telescopic rod is connected to a slider through a connecting shaft. A connecting seat is provided on the outside of the slider, and the slider is slidably connected to the connecting seat. A spring is connected between the slider and the connecting seat.

[0013] Further technical solution: the scraping mechanism includes a central shaft seat, a rotating scraper, an elastic tension spring, a sliding grinding block and an elastic push spring;

[0014] One end of the connecting seat is rotatably connected to the central shaft seat, and a driving motor is provided in the connecting seat, which can drive the central shaft seat to rotate through a gear transmission pair. A plurality of rotating scrapers are rotatably connected on all four sides of the central shaft seat, and all the rotating scrapers are tilted in the same rotation direction around the central shaft seat. Elastic tension springs are connected between the rotating scrapers and the central shaft seat, and the end face of the rotating scraper facing away from the central shaft seat is slidably connected to a sliding grinding block, and a plurality of elastic push springs are connected between the sliding grinding block and the rotating scraper.

[0015] Further technical solution: the fine grinding mechanism includes a roller, a grinding bar and a grinding block;

[0016] The roller is rotatably connected to the connecting seat, and a toothed belt transmission pair is connected between the roller and the central shaft seat. A plurality of grinding strips are fixedly connected to the side wall of the roller, and a grinding block is provided between each adjacent grinding strip. The grinding block can elastically expand and contract relative to the side wall of the roller.

[0017] All the grinding bars are arranged to be tilted in the same rotation direction around the roller, and the tilting direction of all the grinding bars is opposite to the tilting direction of all the central shaft seats.

[0018] Further technical solution: the cooling mechanism includes a hydraulic pump, a No. 1 water pipe and a No. 2 water pipe;

[0019] The hydraulic pump is fixedly connected to the fixed part of the No. 2 bidirectional electric telescopic rod. The hydraulic pump is connected to a No. 1 water pipe and a No. 2 water pipe through the water pump. The No. 1 water pipe is connected to the No. 1 water bag surrounding the outside of the central shaft seat. The No. 2 water pipe is connected to the No. 2 water bag arranged inside the roller. The No. 1 water bag outside the central shaft seat is in elastic contact with all rotating scrapers, and the No. 2 water bag inside the roller is in elastic contact with the ends of all grinding blocks.

[0020] Further technical solution: the detection assembly includes a sliding seat, a rotating rod, an elastic torsion spring and a guide wheel;

[0021] The telescopic part of the No. 1 electric telescopic sleeve is fixedly connected to a sliding seat, both ends of the sliding seat are rotatably connected to a rotating rod, an elastic torsion spring is connected between one end of the rotating rod and the sliding seat, the other end of the rotating rod is fixedly connected to a guide wheel, a torque sensor is provided between the elastic torsion spring and the rotating rod, and a vibration sensor is provided on the rotating rod.

[0022] Further technical solution: The limiting assembly includes a gear and a rack plate. The telescopic part of the No. 1 bidirectional electric telescopic rod close to the No. 1 electric telescopic sleeve is rotatably connected to the rack plate. The central axis of the traveling roller on one side of the rack plate is fixedly connected to a gear, and the gear can engage with the rack plate.

[0023] Further technical solution: The control system includes a data processor and a PLC controller, the data processor is electrically connected to the PLC controller, and the data processor can be electrically connected to the torque sensor and the vibration sensor, and the PLC controller is electrically connected to the rotating motor, No. 1 electric telescopic sleeve, No. 2 electric telescopic sleeve, No. 2 bidirectional electric telescopic rod and cooling mechanism.

[0024] A railway frog grinding method comprises the following steps:

[0025] S1: Place the railway frog grinding device on the upper side of the railway frog, start the No. 1 bidirectional electric telescopic rods at both ends of the connecting frame to retract, so that each traveling roller is in contact with and squeezed against the side of the railway frog;

[0026] S2: The rotating motor is started, and the rotating motor drives the traveling roller connected to it to rotate, so that the connecting frame can move along the length direction of the railway frog. After each movement of a certain distance, the rotating motor is started to stop, and the limiting component can limit and fix the connecting frame and the railway frog. At this time, the detection component can detect the curvature and surface roughness of the side wall of this section of the railway frog;

[0027] S3: Start the reciprocating telescopic motion of the No. 2 electric telescopic sleeve. The No. 2 electric telescopic sleeve drives the two connecting mechanisms to move through the No. 2 bidirectional electric telescopic rod. Each connecting mechanism drives the connected scraping mechanism and fine grinding mechanism to fit with the railway frog. At the same time, under the control of the control system, the scraping mechanism and fine grinding mechanism remove slag and grind the side wall of the railway frog according to the curvature and surface roughness of the side wall of this section of the railway frog.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. Under the tightening force of the No. 2 bidirectional electric telescopic rod, the scraping mechanism and fine grinding mechanism connected to the connecting seat can apply an extrusion force perpendicular to the length direction of the railway frog to the side wall of the railway frog, and when the curvature of the side wall of the railway frog changes, under the elastic force of the spring and the sliding cooperation between the slider and the connecting seat, all the scraping mechanisms and fine grinding mechanisms can elastically squeeze the railway frog along the length direction of the railway frog. Therefore, when the curvature of the side wall of the railway frog changes, under the tightening force of the No. 2 bidirectional electric telescopic rod and the limiting action of the connecting mechanism, all the scraping mechanisms and fine grinding mechanisms can always fit with the side wall of the railway frog.

[0030] 2. When the torque change value of the torque sensor exceeds the preset torque threshold of the data processor, the No. 2 electric telescopic sleeve drives the scraping mechanism and the fine grinding mechanism on each side of the No. 2 bidirectional electric telescopic rod to reciprocate along the side wall of the railway frog while grinding the side wall of the railway frog; before grinding, the hydraulic pump is started first to reduce the water pressure in the No. 1 water bag and increase the water pressure in the No. 2 water bag through the hydraulic pump. At this time, in the scraping mechanism, the elastic tension spring pulls the rotating scraper to fit with the central shaft seat. When the central shaft seat rotates, all the sliding grinding blocks can fit with and grind the side wall of the railway frog; at this time, the roller drives all the grinding bars to grind the side wall of the railway frog, thereby improving the grinding effect of the side wall of the railway frog, and in this process, each grinding block can extend to the outside of the roller to fit with the side wall of the railway frog, thereby improving the grinding effect of the side wall of the railway frog.

[0031] 3. When the vibration frequency value of the vibration sensor on the rotating rod exceeds the vibration frequency threshold preset in the data processor, the hydraulic pump is started first. The water pressure in the No. 1 water bag is increased and the water pressure in the No. 2 water bag is reduced through the hydraulic pump. In the scraper mechanism, under the push of the No. 1 water bag, all the rotating scrapers rotate synchronously. When the central shaft seat rotates, all the rotating scrapers contact the side wall of the railway frog. The welding slag on the railway frog is scraped off by all the rotating scrapers, and the drive motor in the connecting seat is started to intermittently reverse. When the drive motor rotates intermittently in the opposite direction, the scraper mechanism and the fine grinding mechanism can take turns to scrape off the welding slag on the side wall of the railway frog from different directions. In this process, the scraper mechanism and the fine grinding mechanism take turns to grind the side wall of the railway frog, thereby improving the slag removal and grinding speed of the side wall of the railway frog.

[0032] 4. Start the No. 1 electric telescopic sleeve to retract, and the No. 1 electric telescopic sleeve drives the sliding seat connected to it to move, and the sliding seat drives the rotating rod connected to it to push the rack plate, and the rack plate fits with the gear on one side, thereby limiting the travel roller connected to the gear; at the same time, under the guidance of the rack plate, the rotating rod drives the guide wheel to squeeze towards the side wall of the rail, thereby increasing the connection stability between the entire railway switch grinding device and the rail switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0034] Figure 2 Schematic diagram of the structure of the detection component in the present invention.

[0035] Figure 3 It is a structural schematic diagram of the cooling mechanism in the present invention.

[0036] Figure 4 for Figure 3 Schematic diagram of the top view structure.

[0037] Figure 5 It is a structural schematic diagram of the connecting mechanism and the fine grinding mechanism in the present invention.

[0038] Figure 6 It is a structural schematic diagram of the scraping mechanism in the present invention.

[0039] In the accompanying drawings: 1. Connecting frame; 2. No. 1 bidirectional electric telescopic rod; 3. Travel roller; 4. Detection assembly; 41. Sliding seat; 42. Rotating rod; 43. Elastic torsion spring; 44. Guide wheel; 5. Limiting assembly; 51. Gear; 52. Rack plate; 6. Connecting mechanism; 61. Coupling; 62. Sliding block; 63. Connecting seat; 64. Spring; 7. Scraping mechanism; 71. Center shaft seat; 72. Rotating scraper; 73. Elastic tension spring; 74. Sliding grinding block; 75. Elastic push spring; 8. Fine grinding mechanism; 81. Roller; 82. Grinding strip; 83. Grinding block; 9. Cooling mechanism; 91. Hydraulic pump; 92. No. 1 water pipe; 93. No. 2 water pipe; 10. Rotating motor; 11. No. 1 electric telescopic sleeve; 12. No. 2 electric telescopic sleeve; 13. No. 2 bidirectional electric telescopic rod. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0041] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0042] like Figures 1-6 As shown, a railway frog grinding device provided by the present invention includes a connecting frame 1, both ends of the connecting frame 1 are fixedly connected to a first bidirectional electric telescopic rod 2, the telescopic portions on both sides of the first bidirectional electric telescopic rod 2 are rotatably connected to travel rollers 3, and the telescopic end of one of the first bidirectional electric telescopic rods 2 is fixedly connected to a rotating motor 10, and the output shaft of the rotating motor 10 is fixedly connected to the central axis of one of the travel rollers 3;

[0043] The connecting frame 1 is fixedly connected to a first electric telescopic sleeve 11. The telescopic portion of the first electric telescopic sleeve 11 is connected to a detection component 4. The detection component 4 can detect the curvature and surface roughness of the side wall of the railway frog. A limit component 5 is provided on one side of the detection component 4. The limit component 5 can limit and fix the connecting frame 1 to the railway frog.

[0044] The connecting frame 1 is fixedly connected to a No. 2 electric telescopic sleeve 12, the telescopic portion of the No. 2 electric telescopic sleeve 12 is fixedly connected to a No. 2 bidirectional electric telescopic rod 13, and the telescopic portions on both sides of the No. 2 bidirectional electric telescopic rod 13 are elastically and movably connected to a connecting mechanism 6, and the two ends of the connecting mechanism 6 are respectively connected to a scraping mechanism 7 and a fine grinding mechanism 8. Under the cooperation of the connecting mechanism 6, the scraping mechanism 7 and the fine grinding mechanism 8 can always maintain contact with the side wall of the railway frog. The scraping mechanism 7 and the fine grinding mechanism 8 are jointly connected to a cooling mechanism 9 capable of cooling them;

[0045] The scraping mechanism 7 and the fine grinding mechanism 8 are electrically connected to a control system. According to the curvature and surface roughness of the side wall of the railway frog, the control system can control the scraping mechanism 7, the fine grinding mechanism 8 and the cooling mechanism 9 to remove slag and grind the side wall of the railway frog;

[0046] A pressure sensor is provided between the central rotating shaft of the traveling roller 3 and the telescopic part of the No. 1 bidirectional electric telescopic rod 2. When the value of the pressure sensor is less than the set value of the control system, the No. 1 bidirectional electric telescopic rod 2 starts to retract, so that the traveling roller 3 always maintains a stable pressure with the railway switch.

[0047] A railway frog grinding method comprises the following steps:

[0048] S1: Place the railway frog grinding device on the upper side of the railway frog, start the No. 1 bidirectional electric telescopic rods 2 at both ends of the connecting frame 1 to retract, so that each traveling roller 3 is in contact with and squeezed against the side of the railway frog;

[0049] S2: The rotating motor 10 is started, and the rotating motor 10 drives the traveling roller 3 connected thereto to rotate, so that the connecting frame 1 can move along the length direction of the railway frog. After each movement of a certain distance, the rotating motor 10 is started to stop, and the limiting assembly 5 can limit and fix the connecting frame 1 and the railway frog. At this time, the detecting assembly 4 can detect the curvature and surface roughness of the side wall of this section of the railway frog;

[0050] S3: Start the reciprocating telescopic motion of the No. 2 electric telescopic sleeve 12. The No. 2 electric telescopic sleeve 12 drives the two connecting mechanisms 6 to move through the No. 2 bidirectional electric telescopic rod 13. Each connecting mechanism 6 drives the scraping mechanism 7 and the fine grinding mechanism 8 connected to it to fit with the railway frog. At the same time, under the control of the control system, according to the curvature and surface roughness of the side wall of this section of the railway frog, the scraping mechanism 7 and the fine grinding mechanism 8 remove slag and grind the side wall of the railway frog.

[0051] like Figure 5 As shown, a railway frog grinding device provided by the present invention, the connecting mechanism 6 includes a connecting shaft 61, a slider 62, a connecting seat 63 and a spring 64;

[0052] The telescopic portion of the No. 2 bidirectional electric telescopic rod 13 can slide and telescope elastically, and the telescopic portion of the No. 2 bidirectional electric telescopic rod 13 is rotatably connected to a slider 62 through a connecting shaft 61. A connecting seat 63 is sleeved on the outside of the slider 62. The slider 62 is slidably connected to the connecting seat 63. A spring 64 is connected between the slider 62 and the connecting seat 63.

[0053] In this embodiment, under the tightening force of the No. 2 bidirectional electric telescopic rod 13, the scraping mechanism 7 and the fine grinding mechanism 8 connected to the connecting seat 63 can apply an extrusion force perpendicular to the length direction of the railway frog to the side wall of the railway frog, and when the curvature of the side wall of the railway frog changes, under the elastic force of the spring 64 and the sliding cooperation between the slider 62 and the connecting seat 63, all the scraping mechanisms 7 and the fine grinding mechanisms 8 can be elastically squeezed with the railway frog along the length direction of the railway frog.

[0054] Therefore, when the curvature of the side wall of the railway frog changes, under the tightening force of the second bidirectional electric telescopic rod 13 and the limiting effect of the connecting mechanism 6, all the scraping mechanisms 7 and the fine grinding mechanisms 8 can always fit with the side wall of the railway frog.

[0055] like Figure 6 As shown in FIG. 1 , a railway frog grinding device provided by the present invention is provided. The scraping mechanism 7 includes a central shaft seat 71 , a rotating scraper 72 , an elastic tension spring 73 , a sliding grinding block 74 and an elastic push spring 75 ;

[0056] One end of the connecting seat 63 is rotatably connected to the center shaft seat 71, and a driving motor is provided in the connecting seat 63, which can drive the center shaft seat 71 to rotate through the gear 51 transmission pair. A plurality of rotating scrapers 72 are rotatably connected on all four sides of the center shaft seat 71, and all the rotating scrapers 72 are tilted in the same rotation direction around the center shaft seat 71. Elastic tension springs 73 are connected between the rotating scrapers 72 and the center shaft seat 71, and the end face of the rotating scraper 72 facing away from the center shaft seat 71 is slidably connected to a sliding polishing block 74, and a plurality of elastic push springs 75 are connected between the sliding polishing block 74 and the rotating scraper 72.

[0057] In this embodiment, the driving motor in the connecting seat 63 is started, and the driving motor in the connecting seat 63 can drive the central shaft seat 71 to rotate through the gear 51 transmission pair. Under the pull of all elastic tension springs 73, all rotating scrapers 72 are in contact with the central shaft seat 71. At this time, the central shaft seat 71 drives all rotating scrapers 72 to rotate, and all sliding grinding blocks 74 on all rotating scrapers 72 can grind the surface of the railway switch.

[0058] like Figure 5 As shown, a railway frog grinding device provided by the present invention, the fine grinding mechanism 8 includes a roller 81, a grinding bar 82 and a grinding block 83;

[0059] The roller 81 is rotatably connected to the connecting seat 63, and a toothed belt transmission pair is connected between the roller 81 and the central shaft seat 71. A plurality of grinding strips 82 are fixedly connected to the side wall of the roller 81, and a grinding block 83 is provided between each adjacent grinding strip 82. The grinding block 83 can be elastically extended relative to the side wall of the roller 81;

[0060] All the grinding bars 82 are arranged around the roller 81 and tilted in the same rotation direction, and the tilting direction of all the grinding bars 82 is opposite to the tilting direction of all the central shaft seats 71 .

[0061] In this embodiment, the central shaft seat 71 drives the roller 81 to rotate through the toothed belt transmission pair. Under the drive of the roller 81, the grinding surfaces of all the grinding strips 82 are in contact with the side wall of the railway frog, thereby grinding the side wall of the railway frog;

[0062] When there is too much welding slag on the side wall of the railway frog, the driving motor in the connecting seat 63 is started to reverse, thereby causing the roller 81 to reverse. At this time, the roller 81 can drive all the grinding bars 82 to scrape the welding slag on the side wall of the frog. At the same time, the grinding block 83 on one side of the grinding bar 82 can elastically abut against the side wall of the frog, thereby preventing the grinding bar 82 from being stuck with the welding slag.

[0063] like Figure 3 As shown, a railway frog grinding device provided by the present invention, the cooling mechanism 9 includes a hydraulic pump 91, a No. 1 water pipe 92 and a No. 2 water pipe 93;

[0064] The hydraulic pump 91 is fixedly connected to the fixed part of the No. 2 bidirectional electric telescopic rod 13. The hydraulic pump 91 is connected to a No. 1 water pipe 92 and a No. 2 water pipe 93 through the water pump. The No. 1 water pipe 92 is connected to the No. 1 water bag surrounding the outside of the central shaft seat 71, and the No. 2 water pipe 93 is connected to the No. 2 water bag arranged inside the roller 81. The No. 1 water bag outside the central shaft seat 71 is in elastic contact with all the rotating scrapers 72, and the No. 2 water bag inside the roller 81 is in elastic contact with the ends of all the grinding blocks 83.

[0065] In this embodiment, the hydraulic pump 91 delivers cooling water to the first water bag and the second water bag through the first water pipe 92 and the second water pipe 93, thereby performing contact cooling on the rotating scraper 72 and the roller 81;

[0066] During this process, the water pressure in the No. 1 and No. 2 water bags is controlled to increase the water pressure in the No. 1 water bag outside the central shaft seat 71. At this time, driven by the No. 1 water bag, all the rotating scrapers 72 rotate simultaneously, so that all the rotating scrapers 72 maintain a certain angle with respect to the tangent direction of the central shaft seat 71. At this time, when the central shaft seat 71 rotates, the central shaft seat 71 drives all the rotating scrapers 72 to scrape off the welding slag on the side wall of the railway frog.

[0067] On the contrary, the water pressure in the No. 2 water bag in the control roller 81 increases. At this time, under the push of the water pressure in the No. 2 water bag, the pressure between all the grinding blocks 83 and the side wall of the railway frog increases. When the bending curvature of the railway frog is too large, the grinding strips 82 on the surface of the roller 81 are difficult to fully fit with the surface of the side wall of the railway frog. At this time, each grinding block 83 can extend to the outside of the roller 81 to grind the side wall of the railway frog, thereby improving the grinding effect of the side wall of the railway frog.

[0068] like Figure 2 As shown, a railway frog grinding device provided by the present invention, the detection assembly 4 includes a sliding seat 41, a rotating rod 42, an elastic torsion spring 43 and a guide wheel 44;

[0069] The telescopic part of the No. 1 electric telescopic sleeve 11 is fixedly connected to a sliding seat 41, and both ends of the sliding seat 41 are rotatably connected to a rotating rod 42. An elastic torsion spring 43 is connected between one end of the rotating rod 42 and the sliding seat 41, and the other end of the rotating rod 42 is fixedly connected to a guide wheel 44. A torque sensor is provided between the elastic torsion spring 43 and the rotating rod 42, and a vibration sensor is provided on the rotating rod 42.

[0070] In this embodiment, when the connecting frame 1 travels along the railway frog, the guide wheel 44 moves along the side wall of the railway frog. At the same time, the rotating rod 42 rotates relative to the sliding seat 41, and the elastic torsion spring 43 rotates under force, causing the torque sensor value to change. The change in the torque sensor value at each distance the connecting frame 1 travels along the railway frog is used to determine the change in the curvature of the railway frog side wall.

[0071] When the guide wheel 44 slides along the railway frog, the vibration sensor on the rotating rod 42 can determine the change in the roughness of the side wall of each section of the railway frog.

[0072] like Figure 2 As shown, a railway frog grinding device provided by the present invention, the limiting assembly 5 includes a gear 51 and a rack plate 52, the telescopic portion of the No. 1 bidirectional electric telescopic rod 2 close to the side of the No. 1 electric telescopic sleeve 11 is rotatably connected to the rack plate 52, and the central axis of the traveling roller 3 on one side of the rack plate 52 is fixedly connected to the gear 51, and the gear 51 can engage with the rack plate 52.

[0073] In this embodiment, the No. 1 electric telescopic sleeve 11 is started to retract, and the No. 1 electric telescopic sleeve 11 drives the sliding seat 41 connected to it to move, and the sliding seat 41 drives the rotating rod 42 connected to it to push the rack plate 52, and the rack plate 52 is in contact with the gear 51 on one side, thereby limiting the travel roller 3 connected to the gear 51; at the same time, under the guidance of the rack plate 52, the rotating rod 42 drives the guide wheel 44 to squeeze toward the side wall of the rail, thereby increasing the connection stability between the entire railway frog grinding device and the rail frog.

[0074] The present invention provides a railway frog grinding device, wherein the control system includes a data processor and a PLC controller, the data processor is electrically connected to the PLC controller, and the data processor can be electrically connected to the torque sensor and the vibration sensor, and the PLC controller is electrically connected to the rotating motor 10, the No. 1 electric telescopic sleeve 11, the No. 2 electric telescopic sleeve 12, the No. 2 bidirectional electric telescopic rod 13 and the cooling mechanism 9.

[0075] Working principle:

[0076] The railway frog grinding device is placed on the upper side of the railway frog, and the No. 1 bidirectional electric telescopic rods 2 at both ends of the connecting frame 1 are started to retract, so that each traveling roller 3 is in contact with and squeezed against the side of the railway frog, and the rotating motor 10 is started. The rotating motor 10 drives the traveling roller 3 connected thereto to rotate, so that the connecting frame 1 can move along the length direction of the railway frog. Every time it moves a certain distance, the rotating motor 10 is started to stop rotating, and the No. 1 electric telescopic sleeve 11 is started to retract, and the No. 1 electric telescopic sleeve 11 drives the sliding seat 41 connected thereto to move, and the sliding seat 41 drives the rotating rod 42 connected thereto to push the rack plate 52, and the rack plate 52 is in contact with the gear 51 on one side, thereby limiting the traveling roller 3 connected to the gear 51; at the same time, under the guidance of the rack plate 52, the rotating rod 42 drives the guide wheel 44 to squeeze against the side wall of the rail, thereby increasing the connection stability between the entire railway frog grinding device and the rail frog;

[0077] When the connecting frame 1 travels along the railway frog, the guide wheel 44 moves along the side wall of the railway frog. At the same time, the rotating rod 42 rotates relative to the sliding seat 41, and the elastic torsion spring 43 rotates under force, causing the torque sensor value to change. When the torque change value of the torque sensor exceeds the preset torque threshold of the data processor, it indicates that the curvature of the railway frog has changed too much.

[0078] Start the No. 2 electric telescopic sleeve 12 to slowly extend and retract, and the No. 2 electric telescopic sleeve 12 drives the scraping mechanism 7 and the fine grinding mechanism 8 on each side of the No. 2 bidirectional electric telescopic rod 13 to reciprocate along the side wall of the railway frog while grinding the side wall of the railway frog; before grinding, start the hydraulic pump 91 first, and reduce the water pressure in the No. 1 water bag through the hydraulic pump 91, and increase the water pressure in the No. 2 water bag. At this time, in the scraping mechanism 7, the elastic tension spring 73 pulls the rotating scraper 72 to fit with the central shaft seat 71. At this time, the angle between the rotating scraper 72 and the central shaft seat 71 in the tangential direction becomes smaller. When the central shaft seat 71 rotates, all the sliding grinding blocks 74 can fit with and grind the side wall of the railway frog. When the sliding grinding block 74 is worn, the elastic push spring 75 can push the sliding grinding block 74 to always keep in contact with the side wall of the railway frog, and under the push of the elastic push spring 75, the sliding grinding block 74 can be prevented from getting stuck with the surface of the railway frog;

[0079] At this time, the roller 81 drives all the grinding bars 82 to grind the side wall of the railway frog, thereby improving the grinding effect of the side wall of the railway frog, and in this process, each grinding block 83 can extend out of the roller 81 and fit with the side wall of the railway frog, thereby improving the grinding effect of the side wall of the railway frog.

[0080] When the vibration frequency value of the vibration sensor on the rotating rod 42 exceeds the vibration frequency threshold preset in the data processor, it indicates that the roughness of the side wall of the railway frog is relatively large. At this time, the hydraulic pump 91 is first started to increase the water pressure in the No. 1 water bag and reduce the water pressure in the No. 2 water bag. At this time, in the scraper mechanism 7, under the push of the No. 1 water bag, all the rotating scrapers 72 rotate synchronously, and the angle between the rotating scrapers 72 and the tangent direction of the central shaft seat 71 becomes larger. When the central shaft seat 71 rotates, all the rotating scrapers 72 contact the side wall of the railway frog, and the welding slag on the railway frog is scraped off by all the rotating scrapers 72. At this time, since the inclination direction of all the grinding bars 82 is opposite to the inclination direction of all the central shaft seats 71, all the grinding bars 82 grind the side wall of the railway frog in the opposite direction of all the central shaft seats 71.

[0081] And while the scraping mechanism 7 and the fine grinding mechanism 8 reciprocate along the side wall of the railway frog, the driving motor in the connecting seat 63 is started to intermittently reverse. When the driving motor in the connecting seat 63 reverses, all the rotating scrapers 72 drive all the sliding grinding blocks 74 to grind the side wall of the railway frog. At the same time, the roller 81 can drive all the grinding bars 82 to scrape off the welding slag on the side wall of the frog. The grinding block 83 on one side of the grinding bar 82 can elastically abut against the side wall of the frog, thereby preventing the grinding bar 82 from being stuck with the welding slag.

[0082] When the driving motor rotates intermittently in the reverse direction, the scraping mechanism 7 and the fine grinding mechanism 8 can take turns to scrape off the welding slag on the side wall of the railway frog from different directions. In this process, the scraping mechanism 7 and the fine grinding mechanism 8 take turns to grind the side wall of the railway frog, thereby improving the slag removal and grinding speed of the side wall of the railway frog.

[0083] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0084] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A railway frog grinding device, comprising a connecting frame (1), characterized in that: Both ends of the connecting frame (1) are fixedly connected to a No. 1 bidirectional electric telescopic rod (2), and the telescopic parts on both sides of the No. 1 bidirectional electric telescopic rod (2) are rotatably connected to the travel rollers (3), and the telescopic end of one of the No. 1 bidirectional electric telescopic rods (2) is fixedly connected to a rotating motor (10), and the output shaft of the rotating motor (10) is fixedly connected to the central axis of one of the travel rollers (3); The connecting frame (1) is fixedly connected to a No. 1 electric telescopic sleeve (11); the telescopic portion of the No. 1 electric telescopic sleeve (11) is connected to a detection component (4); the detection component (4) is capable of detecting the curvature and surface roughness of the side wall of the railway frog; a limiting component (5) is provided on one side of the detection component (4); the limiting component (5) is capable of fixing the connecting frame (1) and the railway frog; The connecting frame (1) is fixedly connected to a No. 2 electric telescopic sleeve (12), the telescopic portion of the No. 2 electric telescopic sleeve (12) is fixedly connected to a No. 2 bidirectional electric telescopic rod (13), the telescopic portions on both sides of the No. 2 bidirectional electric telescopic rod (13) are elastically and movably connected to a connecting mechanism (6), the two ends of the connecting mechanism (6) are respectively connected to a scraping mechanism (7) and a fine grinding mechanism (8), and under the cooperation of the connecting mechanism (6), the scraping mechanism (7) and the fine grinding mechanism (8) can always keep in contact with the side wall of the railway switch, and the scraping mechanism (7) and the fine grinding mechanism (8) are commonly connected to a cooling mechanism (9) capable of cooling them; The scraping mechanism (7) and the fine grinding mechanism (8) are electrically connected to a control system. According to the curvature and surface roughness of the side wall of the railway frog, the control system can control the scraping mechanism (7), the fine grinding mechanism (8) and the cooling mechanism (9) to remove slag and grind the side wall of the railway frog; The connecting mechanism (6) includes a connecting shaft (61), a slider (62), a connecting seat (63) and a spring (64); the telescopic portion of the second bidirectional electric telescopic rod (13) can slide and telescope elastically, and the telescopic portion of the second bidirectional electric telescopic rod (13) is rotatably connected to the slider (62) through the connecting shaft (61); the slider (62) is provided with a connecting seat (63) on the outside, the slider (62) is slidably connected to the connecting seat (63), and a spring (64) is connected between the slider (62) and the connecting seat (63); The scraping mechanism (7) includes a central shaft seat (71), a rotating scraper (72), an elastic tension spring (73), a sliding grinding block (74) and an elastic push spring (75); one end of the connecting seat (63) is rotatably connected to the central shaft seat (71), and a driving motor capable of driving the central shaft seat (71) to rotate through a gear (51) transmission pair is provided in the connecting seat (63); a plurality of rotating scrapers (72) are rotatably connected to the four sides of the central shaft seat (71), and all the rotating scrapers (72) are tilted in the same rotation direction around the central shaft seat (71); an elastic tension spring (73) is connected between the rotating scraper (72) and the central shaft seat (71); the end surface of the rotating scraper (72) facing away from the central shaft seat (71) is slidably connected to the sliding grinding block (74), and a plurality of elastic push springs (75) are connected between the sliding grinding block (74) and the rotating scraper (72).

2. The railway frog grinding device according to claim 1, characterized in that: The fine grinding mechanism (8) comprises a roller (81), a grinding bar (82) and a grinding block (83); The roller (81) is rotatably connected to the connecting seat (63), a toothed belt transmission pair is connected between the roller (81) and the central shaft seat (71), a plurality of grinding strips (82) are fixedly connected to the side wall of the roller (81), a grinding block (83) is provided between each adjacent grinding strip (82), and the grinding block (83) can elastically expand and contract relative to the side wall of the roller (81); All the grinding bars (82) are arranged to be tilted in the same rotation direction around the roller (81), and the tilting direction of all the grinding bars (82) is opposite to the tilting direction of all the central shaft seats (71).

3. The railway frog grinding device according to claim 2, characterized in that: The cooling mechanism (9) includes a hydraulic pump (91), a first water pipe (92), and a second water pipe (93); The hydraulic pump (91) is fixedly connected to the fixed portion of the No. 2 bidirectional electric telescopic rod (13). The hydraulic pump (91) is connected to a No. 1 water pipe (92) and a No. 2 water pipe (93) through the water pump. The No. 1 water pipe (92) is connected to a No. 1 water bag surrounding the outside of the central shaft seat (71). The No. 2 water pipe (93) is connected to a No. 2 water bag provided inside the roller (81). The No. 1 water bag outside the central shaft seat (71) is in elastic contact with all the rotating scrapers (72), and the No. 2 water bag inside the roller (81) is in elastic contact with the ends of all the grinding blocks (83).

4. The railway frog grinding device according to claim 1, characterized in that: The detection assembly (4) includes a sliding seat (41), a rotating rod (42), an elastic torsion spring (43) and a guide wheel (44); The telescopic portion of the No. 1 electric telescopic sleeve (11) is fixedly connected to a sliding seat (41), both ends of the sliding seat (41) are rotatably connected to a rotating rod (42), an elastic torsion spring (43) is connected between one end of the rotating rod (42) and the sliding seat (41), and the other end of the rotating rod (42) is fixedly connected to a guide wheel (44), a torque sensor is provided between the elastic torsion spring (43) and the rotating rod (42), and a vibration sensor is provided on the rotating rod (42).

5. The railway frog grinding device according to claim 1, characterized in that: The limiting assembly (5) includes a gear (51) and a rack plate (52), the telescopic portion of the No. 1 bidirectional electric telescopic rod (2) close to the No. 1 electric telescopic sleeve (11) is rotatably connected to the rack plate (52), and the central axis of the traveling roller (3) on one side of the rack plate (52) is fixedly connected to the gear (51), and the gear (51) can mesh with the rack plate (52).

6. The railway frog grinding device according to claim 1, characterized in that: The control system includes a data processor and a PLC controller, the data processor is electrically connected to the PLC controller, and the data processor can be electrically connected to the torque sensor and the vibration sensor, and the PLC controller is electrically connected to the rotating motor (10), the No. 1 electric telescopic sleeve (11), the No. 2 electric telescopic sleeve (12), the No. 2 bidirectional electric telescopic rod (13) and the cooling mechanism (9).

7. A railway frog grinding method, applied to the railway frog grinding device according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1: placing the railway frog grinding device on the upper side of the railway frog, starting the No. 1 bidirectional electric telescopic rod (2) at both ends of the connecting frame (1) to retract, so that each traveling roller (3) is attached to and squeezed against the side of the railway frog; S2: starting the rotating motor (10), which drives the traveling roller (3) connected thereto to rotate, thereby enabling the connecting frame (1) to move along the length direction of the railway frog. After each movement of a certain distance, the rotating motor (10) is started and stopped, and the limiting component (5) can limit and fix the connecting frame (1) and the railway frog. At this time, the detection component (4) can detect the curvature and surface roughness of the side wall of this section of the railway frog; S3: Start the reciprocating telescopic motion of the No. 2 electric telescopic sleeve (12), and drive the two connecting mechanisms (6) to move through the No. 2 bidirectional electric telescopic rod (13). Each connecting mechanism (6) drives the scraping mechanism (7) and the fine grinding mechanism (8) connected thereto to fit with the railway frog. At the same time, under the control of the control system, according to the curvature and surface roughness of the side wall of this section of the railway frog, the scraping mechanism (7) and the fine grinding mechanism (8) remove slag and grind the side wall of the railway frog.

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