Electric primary-secondary rail car platform
The servo motor-driven threaded rod and track wheel system enables flexible expansion and automated transportation of the electric mother-daughter railcar platform, solving the problem that fixed-length platforms cannot carry different goods and improving transportation efficiency and stability.
Patent Information
- Application Number
- CN202423275605.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Traditional electric railcar platforms have a fixed length, which cannot fully support goods of different sizes, resulting in low transportation efficiency and increased costs.
The active and driven bidirectional threaded rods are driven to rotate by a servo motor, which in turn causes the sliding frame to unfold, expanding the load-bearing area. The rotating rod and track wheel are also driven to rotate by the servo motor, thus achieving automatic transportation.
It improves adaptability to different goods, reduces human intervention, enhances the consistency and stability of the production process, and improves transportation efficiency.
Smart Images

Figure CN223534260U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rail vehicle platform technology, and in particular to an electric mother-daughter rail vehicle platform. Background Technology
[0002] As is well known, the mother-daughter railcar platform is an efficient and flexible rail transport system that integrates the functional advantages of mother railcars and daughter railcars. It plays an important role in many fields such as industrial production and logistics transportation. In the cargo distribution system, the mother railcar and daughter railcar cooperate with each other to carry out long-distance and large-scale cargo transfer along a predetermined track, efficiently transporting a large number of goods from warehousing centers or production bases to hub nodes in the distribution area.
[0003] However, traditional electric railcar platforms typically have railcars of fixed length. When transporting building steel or pipes of different sizes, the fixed-length railcars may not be able to carry the load completely, requiring them to be split for transport. This affects transport efficiency and increases transport costs and time. Therefore, technological improvements are urgently needed. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology by proposing an electric mother-daughter railcar platform. When in use, the electric mother-daughter railcar platform drives the active bidirectional threaded rod to rotate by starting a servo motor, which in turn drives the rear transmission wheel and the synchronous belt to rotate. As a result, the active bidirectional threaded rod and the driven bidirectional threaded rod rotate together, which in turn drives the threaded sleeve blocks on both sides to move in opposite directions and simultaneously causes the sliding frames on both sides to unfold. This can flexibly expand the load-bearing area and improve the platform's adaptability to different goods.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] An electric mother-daughter railcar platform includes multiple rail platforms, a daughter car seat, and a mother car seat. Sliding frames are provided on both sides of the upper end of the daughter car seat and the mother car seat. A railing is fixedly connected to the front and rear ends of the outer wall of an adjacent side of the sliding frame. Storage slots are provided on the front and rear ends of the upper surfaces of the daughter car seat and the mother car seat. The middle of adjacent ends of the storage slots are connected through the slots. A servo motor is fixedly connected to one side of the inner wall of the rear storage slot. An active bidirectional threaded rod is fixedly connected to the output end of the servo motor. Driven bidirectional threaded rods are rotatably connected to both sides of the inner wall of the front storage slot. Threaded sleeves are fitted on both sides of the active and driven bidirectional threaded rods. The upper ends of the threaded sleeves are fixedly connected to the lower ends of the sliding frames on both sides.
[0007] A mounting groove is provided on the other side of the middle of the upper surface of the subcar seat and the mother car seat. A servo motor is fixedly connected to the rear end of the inner wall of the mounting groove. A rotating rod is fixedly connected to the output end of the servo motor. Multiple rolling grooves are provided on both sides of the lower surface of the subcar seat and the mother car seat. A rotating column is rotatably connected to the inner wall of the front end and the rear end of the rolling groove. Multiple track wheels are fixedly connected to the outer wall of the rotating column.
[0008] Compared with existing electric mother-daughter railcar platforms, this electric mother-daughter railcar platform, when in use, drives the rotating rod to rotate by starting the servo motor two, which in turn drives the transmission wheel two on one side to rotate. This causes the rotating rod and rotating column to rotate together, thereby driving multiple rail wheels on the other side to rotate, so that the whole can move in the rail groove. It can automatically transport various goods to designated locations, greatly reducing manual intervention, improving the consistency and stability of the production process, and has high practical performance.
[0009] Furthermore, a track groove is provided in the middle of the upper surface of the track platform, and the track wheels slide on the inner wall of the track groove respectively;
[0010] The above technical solution facilitates movement along a prescribed route via the track trough.
[0011] Furthermore, on the other side of the fence, multiple sliding strips are fixedly connected to the outer wall of the sliding frame on one side, and the sliding strips are slidably connected to the inner wall of the fence on one side.
[0012] The above technical solution allows for easy extension of the fence using sliding strips, thus preventing goods from falling off.
[0013] Furthermore, a fixing block is fixedly connected to the middle of the upper surface of the sub-car seat and the mother car seat. Limiting blocks are fixedly connected to both sides of the outer wall of the front and rear ends of the fixing block. Limiting grooves are opened on the outer wall of the adjacent side of the front and rear ends of the sliding frame. The sliding frame is slidably connected to the outer wall of the fixing block respectively.
[0014] The above technical solution allows the sliding frames on both sides to be deployed by sliding the sliding frames on the outer wall of the fixed block.
[0015] Furthermore, each of the limiting blocks is slidably connected to the inner wall of the limiting groove;
[0016] With the above technical solution, the limiting blocks are slidably connected to the inner wall of the limiting groove, which facilitates the limiting of the sliding frames on both sides.
[0017] Furthermore, the lower end of the outer wall on one side of the mother car seat is fixedly connected with multiple positioning rods and is engaged with the lower end of the outer wall on the other side of the daughter car seat by multiple positioning pins.
[0018] The above technical solution facilitates the connection between the subcar seat and the mothercar seat using a positioning rod, and limits their position using a positioning pin.
[0019] Furthermore, a transmission wheel is sleeved in the middle of the shaft of both the active bidirectional threaded rod and the driven bidirectional threaded rod, and a synchronous belt is sleeved on the outer wall of the transmission wheel.
[0020] Through the above technical solution, a synchronous belt is sleeved on the outer wall of the transmission wheel, which enables the active bidirectional threaded rod and the driven bidirectional threaded rod to rotate together.
[0021] Furthermore, a second transmission wheel is sleeved on the middle part of the outer wall of both the rotating rod and the rotating column, and a second synchronous belt is sleeved on the outer wall of the second transmission wheel;
[0022] Through the above technical solution, a synchronous belt is fitted on the outer wall of the transmission wheel to facilitate the rotation of the rotating rod and the rotating column.
[0023] This utility model has the following beneficial effects:
[0024] 1. The electric mother-daughter railcar platform proposed in this utility model, compared with the existing electric mother-daughter railcar platform, when in use, drives the active bidirectional threaded rod to rotate by starting the servo motor, which in turn drives the rear transmission wheel and the synchronous belt to rotate. As a result, the active bidirectional threaded rod and the driven bidirectional threaded rod rotate together, which in turn drives the threaded sleeve blocks on both sides to move in opposite directions, and at the same time drives the sliding frames on both sides to unfold. This can flexibly expand the bearing area and improve the adaptability of the platform to different goods.
[0025] 2. Compared with existing electric mother-daughter railcar platforms, the electric mother-daughter railcar platform proposed in this utility model, when in use, drives the rotating rod to rotate by starting the servo motor two, which in turn drives the transmission wheel two on one side to rotate. This causes the rotating rod and rotating column to rotate together, thereby driving multiple rail wheels on the other side to rotate, so that the whole unit moves in the rail groove. It can automatically transport various goods to designated locations, greatly reducing manual intervention, improving the consistency and stability of the production process, and has high practical performance. Attached Figure Description
[0026] Figure 1 This is an axonometric drawing of the electric mother-daughter railcar platform proposed in this utility model;
[0027] Figure 2 This is an isometric view of the unfolded sliding frame of the electric mother-daughter railcar platform proposed in this utility model.
[0028] Figure 3 An exploded view of the electric mother-daughter railcar platform proposed in this utility model;
[0029] Figure 4 This is an exploded bottom view of the electric mother-daughter railcar platform proposed in this utility model;
[0030] Figure 5 This is a top view of the daughter car seat in the electric mother-daughter railcar platform proposed in this utility model;
[0031] Figure 6 for Figure 3 Enlarged view of point A in the middle;
[0032] Figure 7 for Figure 5 Enlarged view of point B in the middle;
[0033] Figure 8 This is an exploded bottom view of the subcar seat in the electric mother-daughter railcar platform proposed in this utility model;
[0034] Figure 9 for Figure 1 Enlarged view of point C in the middle.
[0035] Legend:
[0036] 1. Track platform; 11. Track groove; 12. Subcar seat; 13. Mother car seat; 14. Sliding frame; 15. Guardrail; 16. Sliding bar; 17. Fixing block; 18. Limiting block; 19. Limiting groove; 110. Positioning rod; 111. Positioning pin; 2. Storage slot; 21. Servo motor one; 22. Active bidirectional threaded rod; 23. Driven bidirectional threaded rod; 24. Threaded sleeve block; 25. Transmission wheel one; 26. Synchronous belt one; 3. Mounting slot; 31. Servo motor two; 32. Rotating rod; 33. Roller groove; 34. Rotating column; 35. Track wheel; 36. Transmission wheel two; 37. Synchronous belt two. Detailed Implementation
[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0038] Reference Figure 1-9An embodiment of this utility model provides an electric mother-daughter railcar platform, including multiple rail platforms 1, a daughter car seat 12 and a mother car seat 13. Sliding frames 14 are provided on both sides of the upper end of the daughter car seat 12 and the mother car seat 13. The front and rear ends of the outer wall of the adjacent side of the sliding frame 14 are fixedly connected to the rails 15. The front and rear ends of the upper surface of the daughter car seat 12 and the mother car seat 13 are provided with storage slots 2. The middle of the adjacent ends of the storage slots 2 are connected through. A servo motor 21 is fixedly connected to one side of the inner wall of the rear storage slot 2. An active bidirectional threaded rod 22 is fixedly connected to the output end of the servo motor 21. A driven bidirectional threaded rod 23 is rotatably connected to both sides of the inner wall of the front storage slot 2. Threaded sleeve blocks 24 are sleeved on both sides of the rod body of the active bidirectional threaded rod 22 and the driven bidirectional threaded rod 23. The upper ends of the threaded sleeve blocks 24 are fixedly connected to the lower ends of the sliding frames 14 on both sides respectively.
[0039] On the other side of the middle of the upper surface of the subcar seat 12 and the mother car seat 13, there is a mounting groove 3. A servo motor 31 is fixedly connected to the rear end of the inner wall of the mounting groove 3. A rotating rod 32 is fixedly connected to the output end of the servo motor 31. Multiple roller grooves 33 are respectively opened on both sides of the lower surface of the subcar seat 12 and the mother car seat 13. A rotating column 34 is rotatably connected to the inner wall of the front end and the rear end of the roller groove 33. Multiple track wheels 35 are fixedly connected to the outer wall of the rotating column 34.
[0040] Compared with existing electric mother-daughter railcar platforms, this electric mother-daughter railcar platform, when in use, drives the rotating rod 32 to rotate by starting the servo motor 31, which in turn drives the transmission wheel 36 on one side to rotate. This causes the rotating rod 32 and the rotating column 34 to rotate together, which in turn drives the multiple rail wheels 35 on the other side to rotate, so that the whole unit moves within the rail groove 11. It can automatically transport various goods to designated locations, greatly reducing manual intervention, improving the consistency and stability of the production process, and has high practical performance.
[0041] Track grooves 11 are provided in the middle of the upper surface of the track platform 1. Track wheels 35 slide on the inner wall of the track grooves 11, facilitating movement along a prescribed route. Multiple sliding strips 16 are fixedly connected to the outer wall of the railing 15 near the sliding frame 14 on one side. The sliding strips 16 slide on the inner wall of the railing 15, facilitating the extension of the railing 15 to prevent goods from falling. Fixed blocks 17 are fixedly connected to the middle of the upper surface of the subcar seat 12 and the mother car seat 13. Limiting blocks 18 are fixedly connected to both sides of the outer wall of the front and rear ends of the fixed blocks 17. Limiting grooves 19 are provided on the outer wall of the adjacent front and rear ends of the sliding frame 14. The sliding frames 14 slide on the outer wall of the fixed blocks 17, facilitating the unfolding of the two sliding frames 14. The limiting blocks 18 slide on the inner wall of the limiting grooves 19, facilitating the unfolding of the two sliding frames 14. All are slidably connected to the inner wall of the limiting groove 19, which facilitates the limiting of the sliding frames 14 on both sides. The lower end of the outer wall of one side of the mother car seat 13 is fixedly connected to multiple positioning rods 110, which are engaged with the lower end of the outer wall of the other side of the daughter car seat 12 by multiple positioning pins 111. The positioning rods 110 facilitate the connection between the daughter car seat 12 and the mother car seat 13, and the positioning pins 111 limit their movement. The middle part of the shaft of the driving bidirectional threaded rod 22 and the driven bidirectional threaded rod 23 is fitted with a transmission wheel. A timing belt 26 is fitted on the outer wall of the transmission wheel 25. The timing belt 26 on the outer wall of the transmission wheel 25 enables the driving bidirectional threaded rod 22 and the driven bidirectional threaded rod 23 to rotate together. A transmission wheel 36 is fitted on the middle part of the outer wall of the rotating rod 32 and the rotating column 34. A timing belt 37 is fitted on the outer wall of the transmission wheel 36. The timing belt 37 on the outer wall of the transmission wheel 36 facilitates the rotation of the rotating rod 32 and the rotating column 34.
[0042] Working principle: During use, the servo motor 21 drives the active bidirectional threaded rod 22 to rotate, which in turn drives the rear transmission wheel 25 and the synchronous belt 26 to rotate. This causes the active bidirectional threaded rod 22 and the driven bidirectional threaded rod 23 to rotate together, which in turn drives the threaded sleeve blocks 24 on both sides to move in opposite directions, and simultaneously causes the sliding frames 14 on both sides to unfold. This can flexibly expand the load-bearing area and improve the platform's adaptability to different goods. By starting the servo motor 31, the rotating rod 32 is driven to rotate, which in turn drives the transmission wheel 36 on one side to rotate. This causes the rotating rod 32 and the rotating column 34 to rotate together, which in turn drives the multiple track wheels 35 on the other side to rotate. This allows the entire unit to move within the track groove 11, automatically transporting various goods to designated locations, greatly reducing manual intervention and improving the consistency and stability of the production process.
[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An electric mother-daughter railcar platform, comprising multiple rail platforms (1), a daughter car seat (12), and a mother car seat (13), characterized in that: Sliding frames (14) are provided on both sides of the upper end of the subcar seat (12) and the mother car seat (13). The front and rear ends of the outer wall of the adjacent side of the sliding frame (14) are fixedly connected to the railing (15). The front and rear ends of the upper surface of the subcar seat (12) and the mother car seat (13) are provided with storage slots (2). The middle of the adjacent ends of the storage slots (2) are connected through. A servo motor (21) is fixedly connected to one side of the inner wall of the storage slot (2) at the rear end. An active bidirectional threaded rod (22) is fixedly connected to the output end of the servo motor (21). A driven bidirectional threaded rod (23) is rotatably connected to both sides of the inner wall of the storage slot (2) at the front end. Threaded sleeves (24) are sleeved on both sides of the rod body of the active bidirectional threaded rod (22) and the driven bidirectional threaded rod (23). The upper ends of the threaded sleeves (24) are fixedly connected to the lower ends of the sliding frames (14) on both sides respectively. A mounting groove (3) is provided on the other side of the middle of the upper surface of the subcar seat (12) and the mother car seat (13). A servo motor (31) is fixedly connected to the rear end of the inner wall of the mounting groove (3). A rotating rod (32) is fixedly connected to the output end of the servo motor (31). Multiple roller grooves (33) are provided on both sides of the lower surface of the subcar seat (12) and the mother car seat (13). A rotating column (34) is rotatably connected to the inner wall of the front end and the rear end of the roller groove (33). Multiple track wheels (35) are fixedly connected to the outer wall of the rotating column (34).
2. The electric mother-daughter railcar platform according to claim 1, characterized in that: The upper surface of the track platform (1) is provided with a track groove (11) in the middle, and the track wheels (35) slide on the inner wall of the track groove (11).
3. The electric mother-daughter railcar platform according to claim 1, characterized in that: On the other side, the outer wall of the fence (15) near the sliding frame (14) is fixedly connected with multiple sliding strips (16), and the sliding strips (16) are slidably connected to the inner wall of the fence (15).
4. The electric mother-daughter railcar platform according to claim 1, characterized in that: A fixing block (17) is fixedly connected to the middle of the upper surface of the sub-car seat (12) and the mother car seat (13). Limiting blocks (18) are fixedly connected to both sides of the outer wall of the front and rear ends of the fixing block (17). Limiting grooves (19) are opened on the outer wall of the adjacent side of the front and rear ends of the sliding frame (14). The sliding frame (14) is slidably connected to the outer wall of the fixing block (17).
5. The electric mother-daughter railcar platform according to claim 4, characterized in that: The limiting blocks (18) are all slidably connected to the inner wall of the limiting groove (19).
6. The electric mother-daughter railcar platform according to claim 1, characterized in that: The lower end of one side of the outer wall of the mother car seat (13) is fixedly connected with multiple positioning rods (110) and is engaged with the lower end of the other side of the outer wall of the daughter car seat (12) by multiple positioning pins (111).
7. The electric mother-daughter railcar platform according to claim 1, characterized in that: Both the active bidirectional threaded rod (22) and the driven bidirectional threaded rod (23) are fitted with a transmission wheel (25) in the middle of their shafts, and a synchronous belt (26) is fitted on the outer wall of the transmission wheel (25).
8. The electric mother-daughter railcar platform according to claim 1, characterized in that: The middle part of the outer wall of the rotating rod (32) and the rotating column (34) is provided with a second transmission wheel (36), and the outer wall of the second transmission wheel (36) is provided with a second synchronous belt (37).