A rare earth alloy steel frog

The chute and movable bends of the rare earth alloy steel trajectory are automatically filled with harmful spaces, combined with infrared sensing and laser scanning detection technology, the problems of derailment and low safety inspection efficiency during the steering of the train are solved, real-time detection and high efficiency are achieved examine.

CN118996917BActive Publication Date: 2025-01-03CHONGQING JINKAI SPECIAL STEEL PROD
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Patent Information

Application Number
CN202411362910.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-09-27
Publication Date
2025-01-03
Estimated Expiration
2044-09-27

AI Technical Summary

Technical Problem

Existing forks are prone to derailment when the train is steering, and the safety inspection is inefficient, making it difficult to detect slight deformation in time when manual inspections.

Method used

A rare earth alloy steel rush is designed, using a chute and a movable bent rod structure to automatically fill harmful spaces, combining infrared sensing equipment and laser scanning parts to achieve real-time detection and intensity inspection, avoiding the cumbersomeness of manual on-site inspection.

Benefits of technology

It effectively reduces the risk of train derailment, improves the efficiency and accuracy of cross inspection, reduces manual errors, and improves safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a rare earth alloy steel frog in the technical field of frogs, comprising a mounting base plate, a fork core is fixedly mounted on the upper surface of the mounting base plate, a plurality of slide grooves are arranged on both sides of the mounting base plate corresponding to the fork core, and export blocks are slidably connected in the slide grooves, a wing rail is fixedly mounted on the upper surface of the export block, the wing rail is arranged on the upper surface of the mounting base plate and is slidably connected with the mounting base plate, a plurality of active curved rods are fixedly mounted between the export blocks, a lower limit plate is fixedly mounted on the lower surface of the mounting base plate and at positions corresponding to the slide grooves, a plurality of active curved rods are arranged and are slidably connected with the lower limit plate, limit springs are fixedly mounted at positions corresponding to the active curved rods on both sides of the lower limit plate, and one end of the limit spring away from the lower limit plate is fixedly connected with the export block. The invention provides a frog which can automatically fill harmful space when a train turns to reduce the probability of train derailment, and can monitor the deformation of the frog in real time to prevent and reduce the occurrence of safety accidents.
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Description

Technical Field

[0001] The invention relates to the technical field of frogs, in particular to a rare earth alloy steel frog. Background Art

[0002] A frog is a device that allows a wheel to pass from one rail to another, and is composed of a fork, a wing rail, and connecting parts. Rare earth alloys are made of a rare earth metal (mixed and single metal) or other metals combined with non-metallic elements, and can be made into binary or multi-component rare earth alloy products.

[0003] The existing frogs all have wing rails that keep their positions fixed, and there is inevitably harmful space between the wing rails. The existence of harmful space increases the probability of train derailment when turning, and the existing frog safety inspection requires manual on-site knocking and strength inspection. Manual inspection is inefficient and requires a lot of labor, and it is difficult for the naked eye to detect the slight deformation of the frog in the first time. Summary of the invention

[0004] The technical problem of the present invention is to provide a rare earth alloy steel frog, which can automatically fill the harmful space when the train turns to reduce the probability of train derailment, and can detect the deformation of the frog in real time to prevent and reduce the occurrence of safety accidents.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a rare earth alloy steel frog comprises a mounting base plate, the upper surface of the mounting base plate is fixedly mounted with a fork core, the mounting base plate is provided with a plurality of slide grooves on both sides corresponding to the fork core, the slide grooves are slidably connected with export blocks, the upper surface of the export block is fixedly mounted with wing rails, the wing rails are arranged on the upper surface of the mounting base plate and are slidably connected with the mounting base plate, a plurality of groups of active curved rods are fixedly mounted between the export blocks, a lower limit plate is fixedly mounted on the lower surface of the mounting base plate and corresponds to the position between the slide grooves, the active curved rod is provided with a plurality of groups and is slidably connected with the lower limit plate, the positions of the active curved rods on both sides of the lower limit plate are fixedly mounted with limit springs, one end of the limit spring away from the lower limit plate is fixedly connected with the export block, a plurality of groups of support rods are arranged between the fork cores, and a detection device is arranged on the support rod, and the detection device can detect the bending degree of the support rod.

[0006] As a further solution of the present invention, the detection equipment includes an upper protective plate, the upper surface of the fork core is fixedly installed with the upper protective plate, the upper surface of the mounting base plate is fixedly installed with a lower support plate corresponding to the middle position of the fork core, the support rod passes through the lower support plate and the lower support plate is located in the middle position of the support rod, an induction plate is arranged between the lower support plate and the upper protective plate, a connecting plate is arranged at the end of the induction plate, threaded rods are rotatably installed on both sides of the connecting plate corresponding to the induction plate, scanning parts are threadedly connected to the threaded rods, and the scanning parts are slidably connected to the induction plate.

[0007] As a further solution of the present invention, a transmission gear is fixedly installed on one end of the threaded rod close to the connecting plate, and the transmission gears are meshed with each other. A bidirectional motor is fixedly installed on the connecting plate, and the output end of the bidirectional motor is fixedly connected to one group of the threaded rods, and the thread directions of the threaded rods on both sides are opposite.

[0008] As a further solution of the present invention, mounting plates are fixedly installed on the corners of the mounting base plate, mounting grooves are provided on the mounting plates, limiting blocks are clamped in the mounting grooves, guide columns are fixedly installed on the lower surface of the limiting blocks, movable grooves are provided on the limiting blocks, multiple groups of threaded parts are rotatably installed on the side walls of the movable grooves, positioning rods are threadedly connected in the threaded parts, and one end of the positioning rods is slidably connected to the limiting block through an extension rod.

[0009] As a further solution of the present invention, an upper gear is fixedly installed on the outer surface of the threaded member, a rotating ring is rotatably installed in the movable groove, upper teeth are fixedly installed on the upper surface of the rotating ring, the upper teeth are meshed with the upper gear, internal teeth are rotatably installed on the rotating ring, a driving gear is rotatably installed in the movable groove, and the driving gear is meshed with the internal teeth.

[0010] As a further solution of the present invention, a positioning plate is fixedly installed on the upper part of the introduction column, and a plurality of mounting bolts are arranged on the positioning plate. A plurality of fixed rails are arranged on both sides of the mounting base plate, and guard rails are arranged on the edges of the fixed rails at positions corresponding to the wing rails.

[0011] As a further solution of the present invention, a protective cover is provided at one end of the upper protective plate away from the wing rail, and the protective cover can wrap the bidirectional motor and the transmission gear inside it. Infrared sensing devices are fixedly installed on the positions of the induction plate corresponding to the support rods, and the limit spring is a high-strength spring.

[0012] As a further solution of the present invention, a control mainboard and a Bluetooth transmission module are fixed to the lower surface of the mounting base plate, the infrared sensing device is electrically connected to the control mainboard, and the Bluetooth transmission module is electrically connected to the scanning part.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The frog in the present invention is used as an auxiliary to help the train to switch tracks between fixed tracks. When the train passes through the frog, the wheels are between the wing rails and the fork center. When the wheels are on one set of wing rails, the wheels squeeze the wing rail on one side, so that the wing rail moves appropriately toward the fixed track where the train is running, and then the wing rail at the other end is pulled to move along with it through the movable curved rod, so that the wing rail at the other end moves to fill the harmful space on the frog. When the train travels from either side of the fork center, the wing rail on the other side will automatically approach the train to fill the harmful space, avoiding the problem of easy derailment of the train in the harmful space. The limit springs arranged on the wing rails are not completely fixed and close to the surface of the train, leaving a certain amount of movable space for the wing rails, which can reduce the wear of the wing rails during driving.

[0015] 2. In the present invention, the scanning piece can move back and forth on the threaded rod. When the scanning piece moves to the position of the support rod, it can emit vertical laser rays. By comparing the offset of the laser rays and the position of the support rod, the verticality of the support rod is automatically detected. When the support rod is bent, it means that the outer side of the fork core corresponding to the position of the support rod is squeezed and deformed, thereby automatically checking the strength of the fork core, and then completing the strength inspection of the frog, avoiding the trouble of manual on-site inspection, improving the inspection efficiency and frequency, thereby improving the accuracy of the frog inspection, and avoiding the problem of errors that are easy to occur in naked eye observation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 For the present invention Figure 1 A partial schematic diagram of the structure at A in the middle;

[0019] Figure 3 This is a schematic diagram of the side view structure of the present invention;

[0020] Figure 4 For the present invention Figure 3 A partial schematic diagram of the structure at B in the middle;

[0021] Figure 5 It is a schematic diagram of the bottom structure of the present invention;

[0022] Figure 6 For the present invention Figure 5 Partial schematic diagram of the structure at point C in the middle.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Install the base plate; 2. Guard rail; 3. Fixed rail; 4. Fork core; 5. Wing rail; 6. Positioning plate; 7. Mounting bolt; 8. Slide groove; 9. Mounting plate; 10. Mounting groove; 11. Positioning rod; 12. Limit block; 13. Movable groove; 14. Induction plate; 15. Threaded part; 16. Upper gear; 17. Rotating ring; 18. Driving gear; 19. Inner teeth; 20. Upper teeth; 21. Upper protective plate; 22. Connecting plate; 23. Support rod; 24. Lower support plate; 25. Threaded rod; 26. Scanner; 27. Transmission gear; 28. Lower limit plate; 29. ​​Import column; 30. Export block; 31. Movable curved rod; 32. Limit spring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the 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.

[0026] See also Figure 1-Figure 6 The present invention provides a technical solution: a rare earth alloy steel frog, comprising a mounting base plate 1, a fork core 4 is fixedly mounted on the upper surface of the mounting base plate 1, a plurality of slide grooves 8 are provided on both sides of the mounting base plate 1 corresponding to the fork core 4, and a guide block 30 is slidably connected in the slide grooves 8, a wing rail 5 is fixedly mounted on the upper surface of the guide block 30, the wing rail 5 is arranged on the upper surface of the mounting base plate 1 and is slidably connected to the mounting base plate 1, a plurality of active curved rods 31 are fixedly mounted between the guide blocks 30, a lower limit plate 28 is fixedly mounted on the lower surface of the mounting base plate 1 and corresponds to the position between the slide grooves 8, a plurality of active curved rods 31 are arranged and are slidably connected to the lower limit plate 28, a limit spring 32 is fixedly mounted on both sides of the lower limit plate 28 at the position corresponding to the active curved rod 31, and one end of the limit spring 32 away from the lower limit plate 28 is fixedly connected to the guide block 30, a plurality of support rods 23 are arranged between the fork cores 4, and a detection device is arranged on the support rod 23, and the detection device can detect the bending degree of the support rod 23.

[0027] When working, the frog in the present invention is used as an auxiliary to help the train to switch tracks between fixed tracks 3. When the train passes through the frog, the wheels are between the wing rails 5 and the fork core 4. When the wheels are on one set of wing rails 5, the wheels squeeze the wing rail 5 on one side, so that the wing rail 5 moves appropriately in the direction of the fixed track 3 on which the train is running, and then the wing rail 5 at the other end is pulled to move along with it through the active curved rod 31 (after the wing rail 5 on one side moves in the slide groove 8 under the force of the train, the derailment connecting curved rod slides in the lower limit plate 28, thereby driving the wing rail 5 on the other side to move along with it, and the upper limit spring 32 on the wing rail 5 is used to lock the original position of the wing rail 5), so that the wing rail 5 on the other end moves to fill the harmful space on the frog. When the train travels from either side of the fork core 4, the wing rail 5 on the other side will automatically approach the train to fill the harmful space, thereby avoiding the problem of easy derailment of the train in the harmful space.

[0028] The frog in the present invention is used as an auxiliary to help the train to switch tracks between fixed tracks 3. When the train passes through the frog, the wheels are between the wing rails 5 and the fork core 4. When the wheels are on one set of wing rails 5, the wheels squeeze the wing rail 5 on one side, so that the wing rail 5 moves appropriately toward the fixed track 3 on which the train is running, and then the wing rail 5 at the other end is pulled to move along with it through the active curved rod 31, so that the wing rail 5 at the other end moves to fill the harmful space on the frog. When the train travels from either side of the fork core 4, the wing rail 5 on the other side will automatically approach the train to fill the harmful space, avoiding the problem of easy derailment of the train in the harmful space. The limiting spring 32 arranged on the wing rail 5 is not completely fixed and close to the surface of the train, leaving a certain amount of activity space for the wing rail 5, which can reduce the wear of the wing rail 5 during driving.

[0029] As a further scheme of the present invention, the detection equipment includes an upper protective plate 21, the upper surface of the fork core 4 is fixedly installed with the upper protective plate 21, the upper surface of the mounting base plate 1 is fixedly installed with a lower support plate 24 at the middle position corresponding to the fork core 4, the support rod 23 penetrates the lower support plate 24 and the lower support plate 24 is in the middle position of the support rod 23, a sensing plate 14 is arranged between the lower support plate 24 and the upper protective plate 21, a connecting plate 22 is arranged at the end of the sensing plate 14, threaded rods 25 are rotatably installed on both sides of the connecting plate 22 corresponding to the sensing plate 14, scanning parts 26 are threadedly connected to the threaded rods 25, and the scanning parts 26 are slidably connected to the sensing plate 14.

[0030] During operation, the scanning member 26 of the present invention can reciprocate on the threaded rod 25 (the bidirectional motor drives the threaded rod 25 on one side to rotate, and the rotation of the threaded rod 25 interacts with the scanning member 26 to drive the scanning member 26 to move on the thread, and the infrared sensing device on the sensing plate 14 can sense the scanning member 26. When the scanning member 26 moves to the position of the infrared sensing device, the threaded rod 25 stops rotating, and the scanning member 26 stops moving to check the support rod 23). When the scanning member 26 moves to the position of the support rod 23, it can emit vertical laser rays. By comparing the laser rays with the support rod 23, the scanning member 26 can be detected by the infrared sensing device. The verticality of the support rod 23 is automatically detected by the offset of the position of the support rod 23. When the support rod 23 is bent, it means that the outer side of the fork core 4 at the corresponding position of the support rod 23 is squeezed and deformed (the detection information of the scanned piece 26 can be transmitted to the remote terminal through the Bluetooth transmission module to promptly remind the staff of the problem of the frog), thereby automatically checking the strength of the fork core 4, and then completing the strength inspection of the frog, avoiding the trouble of manual on-site inspection, improving the inspection efficiency and frequency, thereby improving the accuracy of the frog inspection, and avoiding the problem of errors that are easy to occur in naked eye observation.

[0031] In the present invention, the scanning part 26 can move back and forth on the threaded rod 25. When the scanning part 26 moves to the position of the support rod 23, it can emit vertical laser rays. By comparing the offset between the laser rays and the position of the support rod 23, the verticality of the support rod 23 is automatically detected. When the support rod 23 is bent, it means that the outer side of the fork core 4 corresponding to the position of the support rod 23 is squeezed and deformed, thereby automatically checking the strength of the fork core 4, and then completing the strength inspection of the frog, avoiding the trouble of manual on-site inspection, improving the inspection efficiency and frequency, thereby improving the accuracy of the frog inspection, and avoiding the problem of errors that are easy to occur in naked eye observation.

[0032] As a further solution of the present invention, a transmission gear 27 is fixedly installed on one end of the threaded rod 25 close to the connecting plate 22, and the transmission gears 27 are meshed with each other. A bidirectional motor is fixedly installed on the connecting plate 22, and the output end of the bidirectional motor is fixedly connected to one group of threaded rods 25, and the thread directions of the threaded rods 25 on both sides are opposite.

[0033] During operation, the bidirectional motor drives the threaded rod 25 on one side to rotate, and the rotation of the threaded rod 25 interacts with the scanning element 26 to drive the scanning element 26 to move on the thread.

[0034] As a further solution of the present invention, mounting plates 9 are fixedly installed at the corners of the mounting base plate 1, mounting grooves 10 are provided on the mounting plates 9, limiting blocks 12 are clamped in the mounting grooves 10, and guide columns 29 are fixedly installed on the lower surface of the limiting blocks 12. A movable groove 13 is provided on the limiting blocks 12, and multiple groups of threaded parts 15 are rotatably installed on the side walls of the movable grooves 13. Positioning rods 11 are threadedly connected in the threaded parts 15, and one end of the positioning rods 11 is slidably connected to the limiting blocks 12 through extension rods.

[0035] During operation, the mounting base plate 1 of the present invention is fixed between the mounting plate 9 and the limit block 12, and the threaded member 15 on the limit block 12 rotates to drive the positioning rod 11 to be led out and abut against the inner wall of the mounting groove 10 (the motor drives the driving gear 18 to rotate, and the driving gear 18 rotates and drives the rotating ring 17 to rotate through the internal teeth 19, and the rotating ring 17 rotates to drive the upper teeth 20 to rotate, and the upper teeth 20 rotate and drive the upper gear 16 to rotate, and the upper gear 16 rotates and drives the threaded member 15 to rotate, and the threaded member 15 rotates and interacts with the positioning rod 11 so that the positioning rod 11 is led out of the limit block 12 and abuts against the inner wall of the mounting groove 10), thereby fixing the limit block 12 and the mounting base plate 1 (the limit block 12 is embedded below the ground through the guide column 29, and the position of the guide column 29 is fixed by the positioning plate 6 and the mounting bolt 7). When the frog needs to be repaired or replaced, the user can quickly replace and repair the frog by disassembling the limit block 12 and the mounting base plate 1.

[0036] As a further solution of the present invention, an upper gear 16 is fixedly installed on the outer surface of the threaded member 15, a rotating ring 17 is rotatably installed in the movable groove 13, an upper tooth 20 is fixedly installed on the upper surface of the rotating ring 17, the upper tooth 20 is meshed with the upper gear 16, an internal tooth 19 is rotatably installed on the rotating ring 17, a driving gear 18 is rotatably installed in the movable groove 13, and the driving gear 18 is meshed with the internal tooth 19.

[0037] During operation, the motor drives the driving gear 18 to rotate, and the driving gear 18 rotates through the internal teeth 19 to drive the rotating ring 17 to rotate. The rotation of the rotating ring 17 drives the upper teeth 20 to rotate. The rotation of the upper teeth 20 drives the upper gear 16 to rotate. The rotation of the upper gear 16 drives the threaded member 15 to rotate. The rotation of the threaded member 15 interacts with the positioning rod 11 so that the positioning rod 11 is guided out of the limit block 12 to contact the inner wall of the mounting groove 10.

[0038] As a further solution of the present invention, a positioning plate 6 is fixedly installed on the upper part of the introduction column 29, and a plurality of groups of mounting bolts 7 are arranged on the positioning plate 6. A plurality of groups of fixed rails 3 are arranged on both sides of the mounting base plate 1, and guard rails 2 are arranged at the positions corresponding to the wing rails 5 on the edge fixed rails 3.

[0039] During operation, the limiting block 12 is embedded below the ground through the introduction column 29 , and the position of the introduction column 29 is fixed by the positioning plate 6 and the mounting bolts 7 .

[0040] As a further solution of the present invention, a protective cover is provided at one end of the upper protective plate 21 away from the wing rail 5, and the protective cover can wrap the bidirectional motor and the transmission gear 27 inside it. Infrared sensing equipment is fixedly installed at the position corresponding to the support rod 23 on the sensing plate 14, and the limit spring 32 is a high-strength spring.

[0041] During operation, the infrared sensing device on the sensing plate 14 can sense the scanning piece 26 . When the scanning piece 26 moves to the position of the infrared sensing device, the threaded rod 25 stops rotating, so that the scanning piece 26 stops moving to check the support rod 23 .

[0042] As a further solution of the present invention, a control mainboard and a Bluetooth transmission module are fixed to the lower surface of the mounting base plate 1 , the infrared sensing device is electrically connected to the control mainboard, and the Bluetooth transmission module is electrically connected to the scanning part 26 .

[0043] During operation, the detection information of the scanning piece 26 can be transmitted to the remote terminal through the Bluetooth transmission module, so as to promptly remind the staff of the problems with the frog.

Claims

1. A rare earth alloy steel frog, comprising a mounting base plate (1), characterized in that: A fork core (4) is fixedly mounted on the upper surface of the mounting base plate (1), and a plurality of slide grooves (8) are provided on both sides of the mounting base plate (1) corresponding to the fork core (4), and guide blocks (30) are slidably connected in the guide grooves (8). A wing rail (5) is fixedly mounted on the upper surface of the guide block (30), and the wing rail (5) is arranged on the upper surface of the mounting base plate (1) and is slidably connected to the mounting base plate (1). A plurality of active curved rods (31) are fixedly mounted between the guide blocks (30), and a plurality of movable curved rods (31) are fixedly mounted on the lower surface of the mounting base plate (1) and corresponding to the guide grooves (8). A lower limit plate (28) is fixedly installed at the position, the movable bent rod (31) is provided with multiple groups and is slidably connected to the lower limit plate (28), and limit springs (32) are fixedly installed at the positions of the two sides of the lower limit plate (28) corresponding to the movable bent rod (31), and the ends of the limit springs (32) away from the lower limit plate (28) are fixedly connected to the guide block (30), and multiple groups of support rods (23) are arranged between the fork cores (4), and the support rods (23) are provided with detection equipment, and the detection equipment can detect the bending degree of the support rods (23); Both ends of the support rod (23) are connected to the fork core (4), and the detection equipment includes an upper protective plate (21), the upper surface of the fork core (4) is fixedly installed with the upper protective plate (21), and the upper surface of the mounting base plate (1) is fixedly installed with a lower support plate (24) corresponding to the middle position of the fork core (4), the support rod (23) passes through the lower support plate (24) and the lower support plate (24) is located in the middle position of the support rod (23), an induction plate (14) is arranged between the lower support plate (24) and the upper protective plate (21), and a connecting plate (22) is arranged at the end of the induction plate (14), and threaded rods (25) are rotatably installed on the connecting plate (22) on both sides corresponding to the induction plate (14), and the threaded rods (25) are threadedly connected with scanning components (26), and the scanning components (26) are slidably connected to the induction plate (14).

2. A rare earth alloy steel frog according to claim 1, characterized in that: A transmission gear (27) is fixedly mounted on one end of the threaded rod (25) close to the connecting plate (22), and the transmission gears (27) are meshed with each other. A bidirectional motor is fixedly mounted on the connecting plate (22), and the output end of the bidirectional motor is fixedly connected to one group of the threaded rods (25), and the thread directions of the threaded rods (25) on both sides are opposite.

3. A rare earth alloy steel frog according to claim 2, characterized in that: The corners of the mounting base plate (1) are fixedly mounted with mounting plates (9), the mounting plates (9) are provided with mounting grooves (10), a limiting block (12) is clamped in the mounting grooves (10), an introduction column (29) is fixedly mounted on the lower surface of the limiting block (12), a movable groove (13) is provided in the limiting block (12), a plurality of groups of threaded members (15) are rotatably mounted on the side walls of the movable grooves (13), a positioning rod (11) is threadedly connected in the threaded members (15), and one end of the positioning rod (11) is slidably connected to the limiting block (12) via an extension rod.

4. A rare earth alloy steel frog according to claim 3, characterized in that: An upper gear (16) is fixedly mounted on the outer surface of the threaded member (15); a rotating ring (17) is rotatably mounted in the movable groove (13); an upper tooth (20) is fixedly mounted on the upper surface of the rotating ring (17); the upper tooth (20) is meshed with the upper gear (16); an inner tooth (19) is rotatably mounted on the rotating ring (17); a driving gear (18) is rotatably mounted in the movable groove (13); the driving gear (18) is meshed with the inner tooth (19).

5. A rare earth alloy steel frog according to claim 4, characterized in that: A positioning plate (6) is fixedly installed on the upper part of the introduction column (29), and a plurality of mounting bolts (7) are arranged on the positioning plate (6). A plurality of fixed rails (3) are arranged on both sides of the mounting base plate (1), and guard rails (2) are arranged on the edges of the fixed rails (3) at positions corresponding to the wing rails (5).

6. A rare earth alloy steel frog according to claim 5, characterized in that: A protective cover is provided at one end of the upper protective plate (21) away from the wing rail (5), and the protective cover can wrap the bidirectional motor and the transmission gear (27) inside it. Infrared sensing devices are fixedly installed at the positions of the sensing plate (14) corresponding to the support rod (23), and the limit spring (32) is a high-strength spring.

7. A rare earth alloy steel frog according to claim 6, characterized in that: A control mainboard and a Bluetooth transmission module are fixed to the lower surface of the mounting base plate (1); the infrared sensing device is electrically connected to the control mainboard; and the Bluetooth transmission module is electrically connected to the scanning component (26).