Rail trolley rail shifter limiting structure

Abstract

The application belongs to the technical field of rail switcher, and discloses a rail trolley rail switcher limiting structure, which comprises a conversion frame, a plurality of fixed rail frames fixed to the upper ends of the two sides of the conversion frame, an installation groove is formed in the top of the conversion frame, a movable rail frame is slidably arranged in the installation groove, a displacement assembly is arranged on the conversion frame and used for driving the movable rail frame to move, and a limiting assembly is arranged on the conversion frame and used for preventing the rail trolley from rushing out of the conversion frame between the two adjacent fixed rail frames after the rail trolley fails. In the process of moving the rail trolley on the movable rail frame from the position of the two opposite fixed rail frames to the position of the other two opposite fixed rail frames, the displacement assembly is first driven to work to drive the movable rail frame to move until the two ends of the movable rail frame are aligned with the end faces of the other two corresponding fixed rail frames, and in this process, the limiting assembly can effectively reduce the probability of the rail trolley rushing out of the two adjacent fixed rail frames after the rail trolley fails.

Description

Technical Field

[0001] This utility model relates to the field of track switch technology, and in particular to a track trolley track switch limiting structure. Background Technology

[0002] The track switcher is a key piece of equipment in a track-based logistics transport system, mainly used to enable intelligent vehicles to turn and switch paths between different tracks.

[0003] Chinese utility model patent CN210122665U discloses a track-mounted logistics trolley switch, comprising a platform. A motor is fixedly mounted on the front of the platform, and the output shaft of the motor is fixedly connected to a threaded rod via a coupling. A support plate is fixedly connected to the front of the platform. The left end of the threaded rod is movably connected to the support plate. A first connecting plate is movably connected to the outer surface of the threaded rod, and a second connecting plate is movably connected to the outer surface of the threaded rod and to the right of the first connecting plate. Connecting blocks are fixedly connected to the sides of the first and second connecting plates that are separate from each other. The inner surfaces of both connecting blocks are threaded to the threaded rod. Next, a fixing block is fixedly connected to the front of the platform and to the top and bottom of the connecting block. A sliding groove is opened on the opposite side of the two fixing blocks. A sliding rod is fixedly connected to the top and bottom of the two connecting blocks. A slider is movably connected to the inside of the two sliding grooves and to the four sliding rods. The slider is fixedly connected to the sliding rod. A first guide rail is fixedly installed on the front of the first connecting plate. A main guide rail is movably connected to the bottom of the first guide rail. A branch guide rail is movably connected to the top of the first guide rail. A second guide rail is fixedly installed on the top of the second connecting plate. Limit rods are fixedly connected to the top of the first connecting plate and the front of the second connecting plate.

[0004] In the use of an existing rail logistics trolley switch, since there is no limiting structure between the first guide rail and the second guide rail, if the trolley malfunctions, such as a code fault, when the first guide rail and the second guide rail are moving, the probability of the trolley breaking out between the first guide rail and the second guide rail due to the trolley moving on its own on the main guide rail or branch guide rail will increase. Utility Model Content

[0005] To solve the above problems, this utility model provides a track trolley switch limiting structure.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a track trolley switch limiting structure, including a switching frame and a plurality of fixed rail frames fixed to the upper ends of both sides of the switching frame. The top of the switching frame is provided with an installation groove, and a movable rail frame is slidably arranged in the installation groove. The switching frame is provided with a displacement component for driving the movable rail frame to move, and the switching frame is provided with a limiting component for preventing the track trolley from rushing out of the switching frame between two adjacent fixed rail frames after a malfunction.

[0007] By adopting the above technical solution, in the process of moving the track trolley located on the moving track frame from the positions of two opposite fixed track frames to the other two opposite fixed track frames, the displacement component first works to drive the moving track frame to move until the two ends of the moving track frame are aligned with the end faces of the other two corresponding fixed track frames. During this process, due to the setting of the limit component, the probability of the track trolley rushing out between the two adjacent fixed track frames after a failure can be effectively reduced.

[0008] Furthermore, the limiting assembly includes multiple limiting plates fixed to the upper ends of both sides of the conversion frame, a buffer plate disposed on the side wall of the limiting plate near the interior of the conversion frame, and a sliding rod disposed through the limiting plate and slidingly engaging with the limiting plate. The sliding rod is fixedly connected to the buffer plate, and the multiple limiting plates are alternately disposed with the fixed rail frame on the same side.

[0009] By adopting the above technical solution, when the moving rail frame moves to the position between the two fixed rail frames on the same side and the rail trolley malfunctions, the rail trolley moves along the moving rail frame until it contacts the surface of the corresponding buffer plate. The limiting plate and the buffer plate limit the rail trolley to stop moving forward, reducing the probability of the rail trolley rushing out between the two fixed rail frames.

[0010] Furthermore, a limiting block is fixed on the slide rod, and a spring is fixed between the limiting block and the limiting plate. The slide rod passes through the spring and slides in cooperation with the spring.

[0011] By adopting the above technical solution, during the contact process between the track trolley and the buffer plate, the buffer plate is subjected to force and moves towards the direction of the limiting plate, which in turn drives the sliding rod connected to the buffer plate and the limiting block connected to the sliding rod to move. The spring is subjected to force and is gradually stretched. The setting of the spring can buffer the instantaneous force on the buffer plate, thereby playing a protective role for the track trolley.

[0012] Furthermore, the limiting component is provided in two sets and symmetrically arranged about the middle of the moving rail frame. Adjustment through holes are provided through the inner walls on both sides of the mounting groove. The adjustment through holes include multiple upper horizontal sections, multiple inclined sections and multiple lower horizontal sections. The limiting component includes a baffle that is provided through the bottom wall of the moving rail frame and slides with the moving rail frame, and an adjustment column provided on the baffle and slides with the adjustment through holes.

[0013] By adopting the above technical solution, during the process of the movable rail frame moving from between two fixed rail frames to between two other fixed rail frames, the adjusting column moves along the adjusting through hole. First, the adjusting column drives the baffle to rise to the highest position. At this time, the movable rail frame is just separated from the two fixed rail frames. Then, the adjusting column drives the baffle to move horizontally until the movable rail frame passes through the interval between two adjacent fixed rail frames on the same side. During this process, the baffles on both sides of the movable rail frame block both ends of the movable rail frame. If the rail trolley malfunctions and moves on its own, the two baffles will effectively block the movement of the rail trolley. Then, the adjusting column drives the baffle to descend and reset. At this time, the movable rail frame is just aligned with the other two fixed rail frames. The blocking operation can be achieved by setting two baffles, without the need to increase the number of baffles as the number of fixed rail frames increases. This reduces the number of baffles used, thereby reducing production costs and improving production efficiency.

[0014] Furthermore, the displacement assembly includes a lead screw rotatably mounted in the mounting groove and threadedly connected to the moving rail frame, a guide rod fixed in the mounting groove and slidingly engaged with the moving rail frame, and a drive motor fixed on the conversion frame and driving the lead screw to rotate.

[0015] By adopting the above technical solution, the drive motor drives the lead screw to rotate after it starts working. Under the limiting action of the guide rod, the purpose of moving the rail frame can be achieved.

[0016] Furthermore, a limiting through hole communicating with the inside of the moving rail frame is provided through the top of the moving rail frame, and a limiting strip that slides in cooperation with the limiting through hole is fixed on the baffle.

[0017] By adopting the above technical solution, the limiting through hole and the limiting strip have a good limiting effect, which improves the stability of the baffle during movement.

[0018] Furthermore, the bottom of the movable rail frame is rotatably connected to rollers that are rolled in connection with the bottom wall of the mounting groove.

[0019] By adopting the above technical solution, the rollers not only provide support for the moving rail frame, but also reduce the friction between the moving rail frame and the bottom wall of the mounting groove during movement.

[0020] Furthermore, the adjusting column passes through the baffle and is rotatably connected to the baffle.

[0021] By adopting the above technical solution, the rotatable connection between the adjusting column and the baffle reduces the friction between the adjusting column and the conversion frame during movement.

[0022] In summary, the present invention has the following beneficial effects: In this application, by improving the prior art, the probability of the track trolley breaking out between two adjacent fixed rail frames after a failure can be effectively reduced. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model; Figure 2 This is a schematic diagram of the structure of the connection between the buffer plate and the limiting plate in Embodiment 1 of this utility model; Figure 3 This is a schematic diagram of Embodiment 2 of the present invention, which highlights the connection structure between the fixed rail frame and the conversion frame; Figure 4 This is a cross-sectional schematic diagram of Embodiment 2 of the present invention to highlight the connection structure between the baffle and the adjusting column; Figure 5 This is a cross-sectional schematic diagram of Embodiment 2 of the present invention, which highlights the connection structure between the conversion frame and the adjustment column.

[0024] In the diagram: 1. Conversion frame; 2. Fixed rail frame; 3. Moving rail frame; 4. Displacement assembly; 41. Lead screw; 42. Guide rod; 43. Drive motor; 5. Limiting plate; 6. Buffer plate; 7. Slide rod; 8. Limiting block; 9. Spring; 10. Adjustment through hole; 11. Baffle; 12. Adjustment column; 13. Limiting through hole; 14. Limiting strip; 15. Roller. Detailed Implementation

[0025] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0026] Example 1: As Figure 1-2As shown in the figure, this application discloses a track trolley switch limiting structure, including a conversion frame 1, a limiting component, and a displacement component 4. Fixed rail frames 2 are fixed to the upper ends of both sides of the conversion frame 1. There are four fixed rail frames 2 on each side of the conversion frame 1. The top of the conversion frame 1 has an installation groove, and a movable rail frame 3 is slidably disposed in the installation groove. When the track trolley located on the movable rail frame 3 needs to be moved from the positions of two opposite fixed rail frames 2 to the other two opposite fixed rail frames 2, the displacement component 4 first works to drive the movable rail frame 3 to move until the two ends of the movable rail frame 3 are aligned with the end faces of the other two corresponding fixed rail frames 2. During this process, due to the setting of the limiting component, the probability of the track trolley rushing out between the two adjacent fixed rail frames 2 after a failure can be effectively reduced.

[0027] A limiting assembly is installed on the transfer frame 1 to prevent the track trolley from colliding with the two adjacent fixed rail frames 2 after a malfunction. The limiting assembly includes a limiting plate 5, a buffer plate 6, and a sliding rod 7. Multiple limiting plates 5 are provided and fixed to the upper ends of both sides of the transfer frame 1. Multiple limiting plates 5 on the same side are alternately arranged with the fixed rail frames 2 on the same side. The buffer plate 6 is located on the side wall of the limiting plate 5 closest to the interior of the transfer frame 1. The sliding rod 7 passes through the limiting plate 5 and slides in cooperation with it. The sliding rod 7 is fixedly connected to the buffer plate 6. When the moving rail frame 3 moves to the position between the two fixed rail frames 2 on the same side, and the track trolley malfunctions, the track trolley moves along the moving rail frame 3 until it contacts the surface of the corresponding buffer plate 6. The limiting plates 5 and buffer plates 6 limit the track trolley, preventing it from continuing forward and reducing the probability of the track trolley colliding with the two fixed rail frames 2.

[0028] A limiting block 8 is fixed on the slide rod 7, and a spring 9 is fixed between the limiting block 8 and the limiting plate 5. The slide rod 7 passes through the spring 9 and slides in cooperation with the spring 9. During the contact between the track trolley and the buffer plate 6, the buffer plate 6 is subjected to force and moves towards the limiting plate 5, which in turn drives the slide rod 7 connected to the buffer plate 6 and the limiting block 8 connected to the slide rod 7 to move. The spring 9 is subjected to force and is gradually stretched. The setting of the spring 9 can buffer the instantaneous force on the buffer plate 6, thereby playing a protective role for the track trolley.

[0029] The displacement assembly 4 is mounted on the conversion frame 1 and is used to drive the moving rail frame 3 to move. The displacement assembly 4 includes a lead screw 41, a guide rod 42, and a drive motor 43. The lead screw 41 is rotatably mounted in the mounting groove and threadedly connected to the moving rail frame 3. The guide rod 42 is fixed in the mounting groove and slides in engagement with the moving rail frame 3. The drive motor 43 is fixed on the conversion frame 1 and drives the lead screw 41 to rotate. After the drive motor 43 operates, it drives the lead screw 41 to rotate. Under the limiting action of the guide rod 42, the movement of the moving rail frame 3 can be achieved.

[0030] The bottom of the movable rail frame 3 is rotatably connected to a roller 15 that rolls against the bottom wall of the mounting groove. The roller 15 provides support for the movable rail frame 3 and reduces the friction between the movable rail frame 3 and the bottom wall of the mounting groove during movement.

[0031] Example 2: Figure 3-5 As shown in the figure, this application discloses a track trolley switch limiting structure, including a conversion frame 1, a limiting component, and a displacement component 4. Fixed rail frames 2 are fixed to the upper ends of both sides of the conversion frame 1. There are four fixed rail frames 2 on each side of the conversion frame 1. The top of the conversion frame 1 is provided with an installation groove, and a movable rail frame 3 is slidably arranged in the installation groove. Adjustment through holes 10 are provided through the inner walls of both sides of the installation groove. The adjustment through holes 10 include multiple upper horizontal sections, multiple inclined sections, and multiple lower horizontal sections. The inclined sections, upper horizontal sections, and lower horizontal sections are alternately arranged and interconnected.

[0032] The limiting components are installed on the conversion frame 1. Two sets of limiting components are symmetrically arranged about the middle of the moving rail frame 3. The limiting components are used to prevent the rail trolley from rushing out of the conversion frame 1 between two adjacent fixed rail frames 2 after a malfunction. The limiting components include a baffle 11 and an adjusting column 12. The baffle 11 is installed through the inner bottom wall of the moving rail frame 3 and slides in cooperation with the moving rail frame 3. The adjusting column 12 is installed on the baffle 11 and slides in cooperation with the adjusting through hole 10. During the movement of the movable track frame 3 from between two fixed track frames 2 to between two other fixed track frames 2, the adjusting column 12 moves along the adjusting through hole 10. First, the adjusting column 12 drives the baffle 11 to rise to the highest position. At this time, the movable track frame 3 is separated from the two fixed track frames 2. Then, the adjusting column 12 drives the baffle 11 to move horizontally until the movable track frame 3 passes through the interval between two adjacent fixed track frames 2 on the same side. During this process, the baffles 11 on both sides of the movable track frame 3 block the two ends of the movable track frame 3. If the track trolley malfunctions and moves on its own, the two baffles 11 will effectively block the movement of the track trolley. Then, the adjusting column 12 drives the baffle 11 to descend and reset. At this time, the movable track frame 3 is aligned with the other two fixed track frames 2. The blocking operation can be achieved by setting two baffles 11. There is no need to increase the number of baffles 11 as the number of fixed track frames 2 increases. This reduces the number of baffles 11 used, thereby reducing production costs and improving production efficiency.

[0033] A limiting through hole 13 communicating with the interior of the movable rail frame 3 is provided through the top of the movable rail frame 3, and a limiting strip 14 that slides in cooperation with the limiting through hole 13 is fixed on the baffle 11. The limiting through hole 13 and the limiting strip 14 provide good limiting function and improve the stability of the baffle 11 when it moves.

[0034] The adjusting column 12 passes through the baffle 11 and is rotatably connected to the baffle 11. The rotatable connection between the adjusting column 12 and the baffle 11 reduces the friction between the adjusting column 12 and the conversion frame 1 when the adjusting column 12 moves.

[0035] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A rail car turn-out limiter structure, characterized by: It includes a conversion frame (1) and multiple fixed rail frames (2) fixed to the upper ends of both sides of the conversion frame (1). The top of the conversion frame (1) is provided with an installation groove, and a movable rail frame (3) is slidably arranged in the installation groove. The conversion frame (1) is provided with a displacement component (4) for driving the movable rail frame (3) to move. The conversion frame (1) is provided with a limiting component for preventing the trolley from rushing out of the conversion frame (1) between two adjacent fixed rail frames (2) after a malfunction.

2. The rail car rail transfer limiter structure of claim 1, wherein: The limiting assembly includes multiple limiting plates (5) fixed to the upper ends of both sides of the conversion frame (1), a buffer plate (6) set on the side wall of the limiting plate (5) near the inside of the conversion frame (1), and a slide rod (7) that is set through the limiting plate (5) and slides in cooperation with the limiting plate (5). The slide rod (7) is fixedly connected to the buffer plate (6), and the multiple limiting plates (5) are alternately set with the fixed rail frame (2) on the same side.

3. The track trolley switch limiting structure according to claim 2, characterized in that: A limiting block (8) is fixed on the slide rod (7), and a spring (9) is fixed between the limiting block (8) and the limiting plate (5). The slide rod (7) passes through the spring (9) and slides with the spring (9).

4. The track trolley switch limiting structure according to claim 1, characterized in that: The limiting components are provided in two sets and are symmetrically arranged about the middle of the moving rail frame (3). The inner walls on both sides of the mounting groove are provided with adjustment through holes (10). The limiting components include a baffle (11) that is provided through the bottom wall of the moving rail frame (3) and slides with the moving rail frame (3), and an adjustment column (12) that is provided on the baffle (11) and slides with the adjustment through hole (10).

5. The track trolley switch limiting structure according to claim 1, characterized in that: The displacement assembly (4) includes a lead screw (41) rotatably mounted in the mounting groove and threadedly connected to the moving rail frame (3), a guide rod (42) fixed in the mounting groove and slidingly engaged with the moving rail frame (3), and a drive motor (43) fixed on the conversion frame (1) and driving the lead screw (41) to rotate.

6. The track trolley switch limiting structure according to claim 4, characterized in that: The top of the movable rail frame (3) is provided with a limiting through hole (13) that communicates with the inside of the movable rail frame (3), and a limiting strip (14) that slides with the limiting through hole (13) is fixed on the baffle (11).

7. The track trolley switch limiting structure according to claim 1, characterized in that: The bottom of the movable rail frame (3) is rotatably connected to a roller (15) that is rollingly connected to the bottom wall of the mounting groove.

8. The track trolley switch limiting structure according to claim 4, characterized in that: The adjusting column (12) passes through the baffle (11) and is rotatably connected to the baffle (11).

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