Railway turnout switching driving assembly

Abstract

The invention provides a railway turnout switching driving assembly, and belongs to the technical field of railway turnout switching, the railway turnout switching driving assembly comprises a first switch rail, a second switch rail, a driving block, a driving block driving mechanism, a first limiting block, a second limiting block and a limiting block lifting mechanism; the position of a driving block is adjusted through a driving block driving mechanism, the driving block drives a first connecting rod and a second connecting rod to move, then a first switch rail and a second switch rail can be driven to switch positions, and when the driving block moves, a first connecting square rod and a second connecting square rod can be connected with a first rotating column and a second rotating column at intervals; when the transmission rod rotates, the transmission rod drives the first rotating column and the second rotating column to rotate at intervals, so that the first limiting block and the second limiting block are driven to move upwards at intervals, the first switch rail or the second switch rail tightly attached to the fixed rail is limited and fixed, and the fixing effect is good.

Description

Technical Field

[0001] This invention belongs to the technical field of railway turnout switching, and specifically discloses a railway turnout switching drive component. Background Technology

[0002] A turnout is a crucial connecting device that allows trains to switch between two railway lines, enabling communication between them. It is also one of the weakest links in the track and is typically installed extensively in stations and marshalling yards. Turnouts allow for the full utilization of a railway line's capacity. Even on a single-track railway, installing turnouts and constructing a branch line longer than the train itself allows trains to run in opposite directions. Turnouts play a vital role on railway lines. Switching between turnouts primarily relies on a drive assembly that moves the switch rail, connecting it to the stationary rail.

[0003] Currently, when railway turnout switching drive components move the switch rail, they mostly only move the switch rail to the inside of the fixed rail, but cannot limit and fix the switch rail. Railway workers often need to use a hook lock to limit and fix it, which makes the process of moving and fixing the switch rail quite troublesome. Summary of the Invention

[0004] This invention provides a railway turnout switching drive component to solve the above-mentioned problems.

[0005] The aforementioned railway turnout switching drive assembly includes a first switch rail, a second switch rail, a drive block, a drive block drive mechanism, a first limit block, a second limit block, and a limit block lifting mechanism. The top surfaces of the first switch rail and the drive block are connected by a first connecting rod; the top surfaces of the second switch rail and the drive block are connected by a second connecting rod. The first and second limit blocks are both vertically slidably disposed above the drive block and located on both sides of the first and second connecting rods. The bottom surfaces of both the first and second limit blocks are provided with second threaded holes. The drive block has a transmission hole that penetrates the first and second end faces of the drive block. The transmission hole has a first transmission cavity corresponding to the first limit block, a second transmission cavity corresponding to the second limit block, and two square rod rotating cavities located on both sides of the first and second transmission cavities. The limit block lifting mechanism includes a second threaded rod, a first rotating column, a second rotating column, and a transmission... The drive mechanism includes a moving rod and a transmission rod; two second threaded rods pass through the drive block, with their top ends inserted into corresponding second threaded holes and their bottom ends located in the first and second transmission cavities, respectively, and a first bevel gear fixed to each bottom end; a first rotating column is rotatably mounted in the first transmission cavity, and a second rotating column is rotatably mounted in the second transmission cavity, with a second bevel gear fixed on both the first and second rotating columns, meshing with the first bevel gear; both the first and second rotating columns have connecting square holes inside; the transmission rod has a first connecting square rod and a second connecting square rod, passing through the transmission hole and the connecting square hole; one of the first and second connecting square rods is located in the connecting square hole, and the other is located in the square rod rotating cavity, allowing the connecting square rod to rotate within the square rod rotating cavity; the transmission rod is driven to rotate by the drive mechanism; the drive block is driven to move along the transmission rod by the drive block drive mechanism.

[0006] In the aforementioned railway turnout switching drive assembly, the drive block drive mechanism includes a first threaded rod and a threaded rod drive component; the drive block has a first threaded hole that penetrates the first end face of the drive block; the second end of the first threaded rod is inserted into the first threaded hole, and the first threaded rod is driven to rotate by the threaded rod drive component.

[0007] In the aforementioned railway turnout switching drive assembly, the drive block drive mechanism further includes a third fixed vertical plate, a first rotating shaft, and a second rotating shaft; the third fixed vertical plate is disposed opposite to the first end face of the drive block; the threaded rod drive component is a first motor; both the first rotating shaft and the second rotating shaft are rotatably mounted on the third fixed vertical plate, the second end of the first rotating shaft is connected to the first end of the first threaded rod, the second rotating shaft is connected to the output shaft of the first motor, a first gear is fixed on the first rotating shaft, a second gear is fixed on the second rotating shaft, and the first gear meshes with the second gear.

[0008] In the aforementioned railway turnout switching drive assembly, the drive block drive mechanism further includes a limiting block, a square block, and a third threaded rod; the first end of the first threaded rod has a square hole that mates with the square block; a limiting hole is provided in the first rotating shaft, and the limiting block is slidably disposed in the limiting hole; the square block passes through the second end of the first rotating shaft and is connected to the limiting block; the limiting block and the square block are provided with a third threaded hole; the third threaded rod includes a smooth section and a threaded section, the smooth section passes through the first end of the first rotating shaft and is rotatably connected to the first rotating shaft, and the threaded section is inserted into the third threaded hole.

[0009] In the aforementioned railway turnout switching drive assembly, a rotating block is provided at the end of the smooth section of the third threaded rod.

[0010] In the aforementioned railway turnout switching drive assembly, a turntable is fixedly mounted on the first threaded rod.

[0011] The aforementioned railway turnout switching drive assembly further includes a first fixed vertical plate and a second fixed vertical plate; the first fixed vertical plate and the second fixed vertical plate are disposed on both sides of the drive block; the transmission rod is rotatably connected to the first fixed vertical plate and the second fixed vertical plate respectively; the drive component of the transmission rod is a second motor, and the output shaft of the second motor is connected to the second end of the transmission rod.

[0012] In the aforementioned railway turnout switching drive assembly, the first fixed vertical plate is located between the drive block and the third fixed vertical plate; the first threaded rod passes through the first fixed vertical plate and is connected to the first rotating shaft on the third fixed vertical plate.

[0013] In the aforementioned railway turnout switching drive assembly, the first threaded rod is rotatably connected to the first fixed vertical plate via a bearing; the transmission rod is rotatably connected to the first fixed vertical plate via a bearing, and to the second fixed vertical plate via a bearing; the first rotating shaft and the second rotating shaft are respectively rotatably connected to the third fixed vertical plate via bearings.

[0014] In the aforementioned railway turnout switching drive assembly, a guide rod is fixedly installed on the top surface of the drive block; guide holes are opened on the bottom surfaces of the first and second limit blocks; the guide rod slides in conjunction with the guide hole.

[0015] Compared with the prior art, the present invention has the following beneficial effects.

[0016] 1. The position of the drive block is adjusted by the drive block drive mechanism. The drive block drives the first connecting rod and the second connecting rod to move, which in turn drives the first tip rail and the second tip rail to switch positions. When the drive block moves, the first connecting rod and the second connecting rod will connect with the first rotating column and the second rotating column at intervals. When the transmission rod rotates, it will drive the first rotating column and the second rotating column to rotate at intervals, thereby driving the first limit block and the second limit block to move upward at intervals, limiting and fixing the first tip rail or the second tip rail that is close to the fixed rail, and the fixing effect is good.

[0017] 2. The connection and disconnection between the first rotating shaft and the first threaded rod are achieved through square blocks and square holes. When the first motor fails, the connection between the first rotating shaft and the first threaded rod can be disconnected, and then manual switching can be performed through the turntable, which is highly practical. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the installation of a railway turnout switching drive assembly. Figure 2 A schematic diagram of the overall structure of a railway turnout switching drive assembly; Figure 3 A connection diagram of the drive block, drive block drive mechanism, limit block, and limit block lifting mechanism; Figure 4 This is a cross-sectional view of the driving block; Figure 5 This is a structural schematic diagram of the transmission rod, the first connecting square rod, and the second connecting square rod. Figure 6 This is a schematic diagram showing the connection between the first limiting block, the second threaded rod, the guide rod, and the first rotating column. Figure 7 This is a connection diagram of the drive block drive mechanism; Figure 8 This is a schematic diagram showing the connection between the first threaded rod and the first rotating shaft. Figure 9 This is a schematic diagram showing the connection between the first threaded rod and the turntable; Figure 10 This is a schematic diagram showing the connection of the first rotating shaft, the limiting block, the square block, and the third threaded rod.

[0020] Explanation of reference numerals in the attached figures: 1. First switch rail; 2. Second switch rail; 3. Drive block; 4. First connecting rod; 5. Second connecting rod; 6. First fixed vertical plate; 7. First threaded rod; 8. First limiting block; 9. Second limiting block; 10. Second threaded rod; 11. Second threaded hole; 12. First transmission cavity; 13. Second transmission cavity; 14. First rotating column; 15. Second rotating column; 16. First bevel gear; 17. Second bevel gear; 18. Second fixed vertical plate; 19. Transmission rod; 20. Transmission hole; 21. First connecting square rod; 22. Second... 23. Connecting square rod; 24. Connecting square hole; 25. Second motor; 26. Guide rod; 27. Guide hole; 28. Third fixed vertical plate; 29. ​​First rotating shaft; 30. Limiting hole; 31. Limiting block; 32. Square block; 33. Square hole; 34. Third threaded rod; 35. Third threaded hole; 36. Rotating block; 37. First motor; 38. Second rotating shaft; 39. Second gear; 40. First gear; 41. Turntable; 42. First threaded hole; 43. Square rod rotating cavity; 44. First fixed rail; 45. Second fixed rail. Detailed Implementation

[0021] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] This embodiment provides a railway turnout switching drive assembly, including a first switch rail 1, a second switch rail 2, a drive block 3, a drive block drive mechanism, a first limit block 8, a second limit block 9, and a limit block lifting mechanism; the first switch rail 1 and the second switch rail 2 are located between a first fixed rail 43 and a second fixed rail 44; the drive block 3 is located between two sleepers below the first fixed rail 43 and the second fixed rail 44; the top surfaces of the first switch rail 1 and the drive block 3 are connected by a first connecting rod 4; the top surfaces of the second switch rail 2 and the drive block 3 are connected by a second connecting rod 5; the first limit block 8 and the second... The limiting blocks 9 are all vertically slidably disposed above the driving block 3 and located on both sides of the first connecting rod 4 and the second connecting rod 5. The bottom surfaces of both the first limiting block 8 and the second limiting block 9 are provided with second threaded holes 11. The driving block 3 is provided with a transmission hole 20, which penetrates the first end face and the second end face of the driving block 3. The transmission hole 20 is provided with a first transmission cavity 12 corresponding to the first limiting block 8, a second transmission cavity 13 corresponding to the second limiting block 9, and two square rod rotating cavities 42 located on both sides of the first transmission cavity 12 and the second transmission cavity 13. The limiting block lifting mechanism includes... The system comprises a second threaded rod 10, a first rotating column 14, a second rotating column 15, a transmission rod 19, and a transmission rod drive component. Two second threaded rods 10 pass through the drive block 3, with their top ends inserted into corresponding second threaded holes 11, and their bottom ends located within the first transmission cavity 12 and the second transmission cavity 13, respectively, with a first bevel gear 16 fixed to each bottom end. The first rotating column 14 is rotatably mounted within the first transmission cavity 12, and the second rotating column 15 is rotatably mounted within the second transmission cavity 13. A second bevel gear 17 is fixed to both the first rotating column 14 and the second rotating column 15. The second bevel gear 17... The first bevel gear 16 is engaged; the first rotating column 14 and the second rotating column 15 are both provided with connecting square holes 23; the transmission rod 19 is provided with a first connecting square rod 21 and a second connecting square rod 22, and the transmission rod 19 passes through the transmission hole 20 and the connecting square hole 23; one of the first connecting square rod 21 and the second connecting square rod 22 is located in the connecting square hole 23, and the other is located in the square rod rotation cavity 42, and the connecting square rod can rotate in the square rod rotation cavity 42; the transmission rod 19 is driven to rotate by the transmission rod driving component; the driving block 3 is driven to move along the transmission rod 19 by the driving block driving mechanism.

[0023] In the above-mentioned railway turnout switching drive assembly, the drive block drive mechanism includes a first threaded rod 7 and a threaded rod drive component; the drive block 3 has a first threaded hole 41, which penetrates the first end face of the drive block 3; the second end of the first threaded rod 7 is inserted into the first threaded hole 41, and the first threaded rod 7 is driven to rotate by the threaded rod drive component.

[0024] In the aforementioned railway turnout switching drive assembly, the drive block drive mechanism further includes a third fixed vertical plate 27, a first rotating shaft 28, and a second rotating shaft 37; the third fixed vertical plate 27 is disposed opposite to the first end face of the drive block 3; the threaded rod drive component is a first motor 36; the first rotating shaft 28 and the second rotating shaft 37 are both rotatably mounted on the third fixed vertical plate 27, the second end of the first rotating shaft 28 is connected to the first end of the first threaded rod 7, the second rotating shaft 37 is connected to the output shaft of the first motor 36, a first gear 39 is fixed on the first rotating shaft 28, a second gear 38 is fixed on the second rotating shaft 37, and the first gear 39 meshes with the second gear 38.

[0025] In the aforementioned railway turnout switching drive assembly, the drive block drive mechanism further includes a limiting block 30, a square block 31, and a third threaded rod 33; the first end of the first threaded rod 7 is provided with a square hole 32 that mates with the square block 31; a limiting hole 29 is provided in the first rotating shaft 28, and the limiting block 30 is slidably disposed in the limiting hole 29; the square block 31 passes through the second end of the first rotating shaft 28 and is connected to the limiting block 30; the limiting block 30 and the square block 31 are provided with a third threaded hole 34; the third threaded rod 33 includes a smooth section and a threaded section, the smooth section passes through the first end of the first rotating shaft 28 and is rotatably connected to the first rotating shaft 28, and the threaded section is inserted into the third threaded hole 34.

[0026] In the aforementioned railway turnout switching drive assembly, a rotating block 35 is provided at the end of the smooth section of the third threaded rod 33.

[0027] In the aforementioned railway turnout switching drive assembly, a turntable 40 is fixedly mounted on the first threaded rod 7.

[0028] The aforementioned railway turnout switching drive assembly also includes a first fixed vertical plate 6 and a second fixed vertical plate 18; the first fixed vertical plate 6 and the second fixed vertical plate 18 are disposed on both sides of the drive block 3; the transmission rod 19 is rotatably connected to the first fixed vertical plate 6 and the second fixed vertical plate 18 respectively; the transmission rod drive component is a second motor 24, and the output shaft of the second motor 24 is connected to the second end of the transmission rod 19.

[0029] In the aforementioned railway turnout switching drive assembly, the first fixed vertical plate 6 is located between the drive block 3 and the third fixed vertical plate 27; the first threaded rod 7 passes through the first fixed vertical plate 6 and is connected to the first rotating shaft 28 on the third fixed vertical plate 27.

[0030] In the aforementioned railway turnout switching drive assembly, the first threaded rod 7 is rotatably connected to the first fixed vertical plate 6 via bearings; the transmission rod 19 is rotatably connected to the first fixed vertical plate 6 via bearings, and to the second fixed vertical plate 18 via bearings; the first rotating shaft 28 and the second rotating shaft 37 are rotatably connected to the third fixed vertical plate 27 via bearings respectively.

[0031] In the aforementioned railway turnout switching drive assembly, a guide rod 25 is fixedly installed on the top surface of the drive block 3; guide holes 26 are opened on the bottom surfaces of the first limiting block 8 and the second limiting block 9; the guide rod 25 is slidably engaged with the guide hole 26. The guide rod 25 is located on both sides of the second threaded rod 10.

[0032] Taking the initial state as the first switch rail 1 being close to the inner side of the first fixed rail 43 and the second switch rail 2 being far from the inner side of the second fixed rail 44 as an example, the working process of the railway turnout switching drive assembly is explained in detail. In the initial state, the first connecting square rod 21 is located in the connecting square hole 23 of the first rotating column 14, and the second connecting square rod 22 is located in the square rod rotating cavity 42 on the side of the second rotating column 15. The entire working process is as follows: The first motor 36 is started and outputs in the forward direction. The output shaft of the first motor 36 drives the second rotating shaft 37 to rotate. The second rotating shaft 37 drives the second gear 38 to rotate. The second gear 38 drives the first gear 39 to rotate. The first gear 39 drives the first gear 39 to rotate. The first rotating shaft 28 rotates, which drives the limiting block 30 and the square block 31 to rotate. The square block 31 drives the first threaded rod 7 to rotate. Since the first threaded rod 7 and the first threaded hole 41 are connected by threads, the driving block 3 moves towards the second motor 24 as the first threaded rod 7 rotates. The driving block 3 drives the first connecting rod 4 and the two second connecting rods 5 to move. The first connecting rod 4 and the two second connecting rods 5 drive the first tip rail 1 and the second tip rail 2 to move. At this time, the first tip rail 1 leaves the inner side of the first fixed rail 43, and the second tip rail 2 will be close to the inner side of the second fixed rail 44. The second limiting block 9 moves to the outer side of the second fixed rail 44. When the drive block 3 moves, it drives the first limiting block 8 and the second limiting block 9 to move. At the same time, the second threaded rod 10, the first rotating column 14, and the second rotating column 15 inside the drive block 3 will move accordingly. At this time, the positions of the transmission rod 19 and the first connecting square rod 21 and the second connecting square rod 22 on it are fixed. The first connecting square rod 21 leaves the connecting square hole 23 of the first rotating column 14 and enters the square rod rotating cavity 42 on the side of the first rotating column 14. The second connecting square rod 22 enters the connecting square hole 23 of the second rotating column 15 from the square rod rotating cavity 42 on the side of the second rotating column 15. Then the second motor 24 outputs in the forward direction, and the output shaft of the second motor 24 drives... The transmission rod 19 rotates, which drives the first connecting square rod 21 and the second connecting square rod 22 to rotate. The first connecting square rod 21 rotates in the square rod rotating cavity 42 on the side of the first rotating column 14, while the second connecting square rod 22 drives the second rotating column 15 to rotate. The second rotating column 15 drives the second bevel gear 17 to rotate, the second bevel gear 17 drives the first bevel gear 16 to rotate, and the first bevel gear 16 drives the second threaded rod 10 to rotate. Since the second threaded rod 10 and the second threaded hole 11 are connected by threads, the second limiting block 9 moves upward with the rotation of the second threaded rod 10, and the second limiting block 9 limits and fixes the second tip rail 2.

[0033] Similarly, when the second motor 24 outputs in reverse, the second limit block 9 returns to its original position, and then the first motor 36 outputs in reverse. The drive block 3 will drive the first connecting rod 4 and the second connecting rod 5 to move closer to the first motor 36. The first connecting rod 4 and the second connecting rod 5 will drive the first tip rail 1 and the second tip rail 2 to move. The second tip rail 2 will move away from the inner side of the second fixed rail 44, and the first tip rail 1 will be pressed against the inner side of the first fixed rail 43. The second connecting square rod 22 will enter the square rod rotation cavity 42 on the side of the second rotating column 15 from the connecting square hole 23 of the second rotating column 15. Rod 21 enters the connecting square hole 23 on the first rotating column 14 from the square rod rotating cavity 42 on the side of the first rotating column 14. The second motor 24 drives the transmission rod 19 to rotate. The first connecting square rod 21 drives the first rotating column 14 to rotate, while the second connecting square rod 22 rotates in the square rod rotating cavity 42 on the side of the second rotating column 15. The first rotating column 14 drives the second threaded rod 10 to rotate through the second bevel gear 17 and the first bevel gear 16. The first limiting block 8 moves upward with the rotation of the second threaded rod 10, and the first limiting block 8 limits and fixes the first tip rail 1.

[0034] In this embodiment, the first motor 36 drives the first threaded rod 7 to rotate, thereby adjusting the position of the drive block 3. The drive block 3 drives the first connecting rod 4 and the second connecting rod 5 to move, thereby switching the positions of the first switch rail 1 and the second switch rail 2. When the drive block 3 moves, the first connecting rod 21 and the second connecting rod 22 will connect with the first rotating column 14 and the second rotating column 15 at intervals. When the transmission rod 19 rotates, it will drive the first rotating column 14 and the second rotating column 15 to rotate at intervals, thereby driving the first limiting block 8 and the second limiting block 9 to move upward at intervals. This can limit and fix the first switch rail 1 or the second switch rail 2 that is close to the fixed rail, resulting in a better fixing effect. Specifically, it solves the problem that in the prior art, when the railway turnout switching drive assembly drives the switch rail to move, it mostly only moves the switch rail to the inside of the fixed rail, but cannot limit and fix the switch rail. Often, railway workers need to use hook locks to limit and fix it, making the movement and fixing process of the switch rail more troublesome.

[0035] When the first motor 36 is damaged, the rotating block 35 is rotated, which drives the third threaded rod 33 to rotate. Since the third threaded rod 33 is connected to the third threaded hole 34 by a thread, the limiting block 30 and the square block 31 move into the limiting hole 29 as the third threaded rod 33 rotates. The limiting block 30 drives the square block 31 to leave the square hole 32, and the connection between the first rotating shaft 28 and the first threaded rod 7 is broken. Then, the turntable 40 is manually rotated, which drives the first threaded rod 7 to rotate, thereby realizing the manual adjustment of the position of the drive block 3. In this way, the positions of the first tip rail 1 and the second tip rail 2 can be switched. In this embodiment, the connection and disconnection between the first rotating shaft 28 and the first threaded rod 7 are realized through the square block 31 and the square hole 32. When the first motor 36 fails, the connection between the first rotating shaft 28 and the first threaded rod 7 can be broken, and then the turntable 40 can be used for manual switching, which is highly practical.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A railway turnout switching drive assembly, characterized in that, It includes a first switch rail (1), a second switch rail (2), a drive block (3), a drive block drive mechanism, a first limit block (8), a second limit block (9), and a limit block lifting mechanism; The top surfaces of the first tip rail (1) and the drive block (3) are connected by the first connecting rod (4); The top surfaces of the second tip rail (2) and the drive block (3) are connected by the second connecting rod (5); The first limiting block (8) and the second limiting block (9) are both vertically slidably disposed above the driving block (3) and located on both sides of the first connecting rod (4) and the second connecting rod (5). The bottom surfaces of the first limiting block (8) and the second limiting block (9) are both provided with second threaded holes (11). The drive block (3) has a transmission hole (20) that passes through the first end face and the second end face of the drive block (3). The transmission hole (20) is provided with a first transmission cavity (12) corresponding to the first limiting block (8), a second transmission cavity (13) corresponding to the second limiting block (9), and two square rod rotating cavities (42) located on both sides of the first transmission cavity (12) and the second transmission cavity (13). The limiting block lifting mechanism includes a second threaded rod (10), a first rotating column (14), a second rotating column (15), a transmission rod (19), and a transmission rod drive component; Two second threaded rods (10) pass through the drive block (3) respectively, with their top ends inserted into the corresponding second threaded holes (11) and their bottom ends located in the first transmission cavity (12) and the second transmission cavity (13) respectively, and the bottom ends are fixed with the first bevel gear (16). The first rotating column (14) is rotatably installed in the first transmission cavity (12), and the second rotating column (15) is rotatably installed in the second transmission cavity (13). A second bevel gear (17) is fixed on the first rotating column (14) and the second rotating column (15), and the second bevel gear (17) meshes with the first bevel gear (16). Both the first rotating column (14) and the second rotating column (15) have connecting square holes (23) inside. The transmission rod (19) is provided with a first connecting square rod (21) and a second connecting square rod (22), and the transmission rod (19) passes through the transmission hole (20) and the connecting square hole (23). One of the first connecting square rod (21) and the second connecting square rod (22) is located inside the connecting square hole (23), and the other is located inside the square rod rotating cavity (42). The connecting square rod can rotate inside the square rod rotating cavity (42). The transmission rod (19) is driven to rotate by the transmission rod drive component; The drive block (3) is driven by the drive block drive mechanism to move along the transmission rod (19).

2. The railway turnout switching drive assembly according to claim 1, characterized in that, The drive block drive mechanism includes a first threaded rod (7) and a threaded rod drive component; The drive block (3) has a first threaded hole (41) that penetrates the first end face of the drive block (3); The second end of the first threaded rod (7) is inserted into the first threaded hole (41), and the first threaded rod (7) is driven to rotate by the threaded rod drive component.

3. The railway turnout switching drive assembly according to claim 2, characterized in that, The drive block drive mechanism also includes a third fixed vertical plate (27), a first rotating shaft (28), and a second rotating shaft (37); The third fixed vertical plate (27) is positioned opposite to the first end face of the driving block (3); The threaded rod drive component is a first motor (36). The first rotating shaft (28) and the second rotating shaft (37) are both rotatably mounted on the third fixed vertical plate (27). The second end of the first rotating shaft (28) is connected to the first end of the first threaded rod (7), and the second rotating shaft (37) is connected to the output shaft of the first motor (36). A first gear (39) is fixed on the first rotating shaft (28), and a second gear (38) is fixed on the second rotating shaft (37). The first gear (39) meshes with the second gear (38).

4. The railway turnout switching drive assembly according to claim 3, characterized in that, The drive block drive mechanism also includes a limit block (30), a square block (31), and a third threaded rod (33). The first end of the first threaded rod (7) is provided with a square hole (32) that mates with the square block (31); A limiting hole (29) is provided in the first rotating shaft (28), and a limiting block (30) is slidably disposed in the limiting hole (29); The square block (31) passes through the second end of the first rotating shaft (28) and is connected to the limiting block (30); The limiting block (30) and the square block (31) are provided with a third threaded hole (34). The third threaded rod (33) includes a smooth section and a threaded section. The smooth section passes through the first end of the first rotating shaft (28) and is rotatably connected to the first rotating shaft (28). The threaded section is inserted into the third threaded hole (34).

5. The railway turnout switching drive assembly according to claim 4, characterized in that, A rotating block (35) is provided at the end of the smooth section of the third threaded rod (33).

6. The railway turnout switching drive assembly according to claim 4, characterized in that, A turntable (40) is fixedly installed on the first threaded rod (7).

7. The railway turnout switching drive assembly according to claim 4, characterized in that, It also includes a first fixed vertical plate (6) and a second fixed vertical plate (18); The first fixed vertical plate (6) and the second fixed vertical plate (18) are disposed on both sides of the driving block (3); The transmission rod (19) is rotatably connected to the first fixed vertical plate (6) and the second fixed vertical plate (18) respectively; The transmission rod drive is a second motor (24), and the output shaft of the second motor (24) is connected to the second end of the transmission rod (19).

8. The railway turnout switching drive assembly according to claim 7, characterized in that, The first fixed vertical plate (6) is located between the driving block (3) and the third fixed vertical plate (27); The first threaded rod (7) passes through the first fixed vertical plate (6) and connects to the first rotating shaft (28) on the third fixed vertical plate (27).

9. The railway turnout switching drive assembly according to claim 1, characterized in that, The first threaded rod (7) is rotatably connected to the first fixed vertical plate (6) via a bearing; The transmission rod (19) is rotatably connected to the first fixed vertical plate (6) via a bearing, and is also rotatably connected to the second fixed vertical plate (18) via a bearing. The first rotating shaft (28) and the second rotating shaft (37) are rotatably connected to the third fixed vertical plate (27) through bearings respectively.

10. The railway turnout switching drive assembly according to claim 1, characterized in that, A guide rod (25) is fixedly provided on the top surface of the drive block (3); The bottom surfaces of the first limiting block (8) and the second limiting block (9) are both provided with guide holes (26). The guide rod (25) slides into the guide hole (26).

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