Rail machine special for array rail

Abstract

The invention provides a rail machine special for an array rail, and relates to the technical field of rail cars. The rail machine special for the array rail comprises a U-shaped rod, two shells are symmetrically and fixedly connected to the top of the U-shaped rod, wheel grooves are formed in the adjacent sides of the two shells correspondingly, and steering wheel assemblies are installed in the four wheel grooves correspondingly; a hidden groove is formed in the position, located in the middle of one side of the other shell, of the outer surface of one shell. The design that the steering wheel assembly and the directional wheel assembly which are independently controlled are combined is adopted, and through the cooperative action of the lifting assembly and the telescopic assembly, switching of the walking mode and the steering mode of the rail car can be rapidly achieved. By means of the structure, the problem that when a traditional rail car steers, the wheels interfere with the rail is solved, the smoothness and stability of the rail transfer process are greatly improved, the rail car has the more efficient operation capacity in a complex array rail network, and the requirement for the flexibility of transportation equipment of modern industrial logistics is met.

Description

Technical Field

[0001] This invention relates to the field of rail vehicle technology, specifically to a dedicated rail machine for arrayed tracks. Background Technology

[0002] Railcars are specialized rail transport equipment used in industrial sites such as factories, mines, and ports, primarily for material transport, equipment traction, or personnel commuting. They are characterized by their robust structure and high load-bearing capacity, typically powered by diesel, electricity, or batteries, and adaptable to harsh working conditions. Depending on their application, they can be categorized into various types, including flatbed cars, hopper cars, and maintenance cars. They offer advantages such as flexible formation and stable operation, effectively improving industrial logistics efficiency and reducing transportation costs, making them an indispensable rail transport tool in the heavy industry sector.

[0003] While the array-type omnidirectional track system and omnidirectional track changing method based on the existing technology license publication number CN1147721838 have achieved flexibility in track layout, the matching track vehicle still lacks a matching walking and turning rapid switching mechanism, resulting in low track changing efficiency.

[0004] To address this, we developed a dedicated track machine for array tracks. Summary of the Invention

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a dedicated track machine for array tracks, which solves the problem that existing track vehicles still lack a rapid switching mechanism for travel and steering that matches array tracks, resulting in low track-changing efficiency.

[0006] (II) Technical Solution To achieve the above objectives, the present invention is implemented through the following technical solution: a special track machine for array tracks, comprising a U-shaped rod, wherein two housings are symmetrically fixedly connected to the top of the U-shaped rod, and wheel grooves are provided on adjacent sides of the two housings, and steering wheel assemblies are installed in the four wheel grooves; A hidden groove is formed on the outer surface of a single housing located in the middle of one side of another housing. A photoelectric sensor is fixedly connected to the inner wall of one side of the single housing located in the hidden groove, and the detection end of the photoelectric sensor extends through the inner wall of the housing into the hidden groove. A center positioning module is installed on one side of each of the two housings in a staggered manner; Both outer surfaces of the two housings have through holes extending into the interior. Lifting components are installed in both through holes on the same side. Two directional wheel assemblies are symmetrically slidably connected to the bottom of the movable ends of the two lifting components. The two directional wheel assemblies on the same side are equipped with a telescopic component.

[0007] Preferably, each of the four steering wheel assemblies includes a first hub motor, and the first hub motor is fixedly installed inside the housing. The drive shaft of the first hub motor passes through the wheel groove and is fixedly connected to the first wheel.

[0008] The above technical solution uses an independently driven first hub motor to directly drive the first wheel, which not only simplifies the transmission structure and improves power transmission efficiency, but also enables precise speed control of a single wheel, providing a reliable guarantee for the smooth steering of the railcar.

[0009] Preferably, both of the central positioning modules include a housing, and the housing is fixedly installed inside the shell. The interior of the housing is provided with a metal plate, and a limiting rod is fixedly connected to one side of the metal plate. The limiting rod extends through the inner wall of the housing to the outer side of the housing and is slidably connected to the housing.

[0010] The above technical solution achieves rapid positioning and docking between the railcar and the center rail of the track through the sliding cooperation between the limiting rod and the outer shell. The structure is simple and reliable, and effectively avoids the deviation problem that may occur in traditional railcars during track changing.

[0011] Preferably, a spring is fixedly connected to one side of the metal plate on the limiting rod, and a ring electromagnet is fixedly connected to the other end of the spring.

[0012] The above technical solution, which uses a combination of electromagnet and spring, ensures both the rapid response and stable holding of the limit rod, and automatic reset when power is off, thus improving the safety and reliability of the system.

[0013] Preferably, both lifting components include a single-axis motor, and the single-axis motor is fixedly installed at the inner bottom of the housing. The drive end of the single-axis motor is fixedly connected to a first screw. The outer surface of the first screw is threaded with a movable frame. Both sides of the movable frame are fixedly connected to slide rods. Both sides of the outer surface of the two slide rods are slidably connected to slide rails, and the slide rails are fixedly installed on the inner wall of the through hole.

[0014] The above technical solution, with its screw drive and guide rail design, ensures the smoothness and accuracy of the lifting process. At the same time, the compact structure facilitates the reliable lifting and lowering of the directional wheel assembly within a limited space.

[0015] Preferably, a first bearing seat is fitted onto the outer surface of the first screw, and the seat of the first bearing seat is fixedly installed on the inner top of the housing, and the inner ring of the bearing inside the first bearing seat is fixedly fitted onto the outer surface of the first screw.

[0016] The above technical solution uses the first bearing housing to axially position and radially support the screw, effectively reducing frictional losses during transmission, extending service life, and ensuring smooth lifting operation.

[0017] Preferably, each of the four directional wheel assemblies includes a guide rail, and the guide rail is fixedly installed at the bottom of the slide rod. A movable seat is slidably connected to the bottom of the guide rail. A second hub motor is fixedly installed on the inner wall of one side of the movable seat, and a second wheel is fixedly connected to the drive end of the second hub motor.

[0018] Through the above technical solutions, the guide rail configuration can ensure the stability of the movable seat movement, and ensure the reliability and efficiency of the railcar when traveling in a straight line.

[0019] Preferably, both telescopic components include a mounting plate, and the mounting plate is fixedly connected to an adjacent movable frame. A dual-axis motor is fixedly mounted on one side of the outer surface of the mounting plate. A second screw is fixedly connected to each of the two drive ends of the dual-axis motor. A slide is threaded onto the outer surface of each of the two second screws, and the slide is fixedly connected to an adjacent movable seat.

[0020] Through the above technical solution, the design of dual-axis motor driving dual screw synchronous motion realizes the symmetrical extension and retraction of the wheels on both sides, avoids the jamming problem that may be caused by unilateral movement, and improves the coordination and stability of the system.

[0021] Preferably, the outer surfaces of both second screws are fitted with second bearing seats, and the seat of the second bearing seat is fixedly connected to the adjacent movable frame, and the inner ring of the bearing built into the second bearing seat is fixedly fitted onto the outer surface of the second screw.

[0022] Through the above technical solution, the setting of the second bearing housing effectively distributes the radial load of the screw, reduces the wear of moving parts, and ensures the accuracy of the telescopic movement.

[0023] Preferably, a controller is fixedly installed inside the housing on one side of the photoelectric sensor, and the controller is electrically connected to the photoelectric sensor, the ring electromagnet, the single-axis motor, the first hub motor, the second hub motor, and the dual-axis motor.

[0024] Through the above technical solutions, the integrated electrical control system enables the coordinated operation of various actuators. Real-time feedback from photoelectric sensors ensures that the entire positioning and steering process is completed automatically, greatly improving operational efficiency and reliability.

[0025] (III) Beneficial Effects This invention provides a dedicated track machine for array tracks. It has the following advantages: 1. This dedicated track machine for array tracks employs a design combining independently controlled steering wheel assemblies and directional wheel assemblies. Through the coordinated action of lifting and telescopic components, it can quickly switch between the track vehicle's walking and turning modes. This structure avoids the interference problem between the wheels and the track during turning in traditional track vehicles, significantly improving the smoothness and stability of the track-changing process. This enables the track vehicle to operate more efficiently in complex array track networks, meeting the flexibility requirements of modern industrial logistics for transportation equipment.

[0026] 2. This dedicated track machine for array tracks, through its symmetrically distributed housing and central top module, combined with photoelectric sensors to detect the track center position in real time, can automatically and accurately position itself when the track vehicle reaches the set location. This design effectively solves the problem of inaccurate positioning of traditional track vehicles in array track systems, significantly improves the docking efficiency between the track vehicle and the array track, and makes track changing operations faster and more reliable, making it particularly suitable for industrial transportation scenarios requiring frequent track changes. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall first-view structure of the present invention; Figure 2 This is a schematic diagram of the overall second-view structure of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 4 This is a top sectional view of the present invention. Figure 5 This is a schematic diagram of the lifting component structure of the present invention; Figure 6 This is a schematic diagram of the central positioning module structure of the present invention.

[0028] The components are as follows: 1. U-shaped rod; 2. Housing; 3. Movable seat; 4. Limiting rod; 5. First wheel; 6. Through hole; 7. Second wheel; 8. Second hub motor; 9. Wheel groove; 10. Hidden groove; 11. Photoelectric sensor; 12. Slide seat; 13. Movable frame; 14. Dual-axis motor; 15. Housing; 16. Slide rod; 17. Slide rail; 18. Controller; 19. Second bearing seat; 20. First hub motor; 21. Second screw; 22. First screw; 23. First bearing seat; 24. Mounting plate; 25. Single-axis motor; 26. Guide rail; 27. Metal plate; 28. Spring; 29. ​​Ring electromagnet. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.

[0030] like Figure 1-6 As shown, this embodiment of the invention provides a dedicated track machine for array tracks, including a U-shaped rod 1. The U-shaped rod 1 serves as the main support frame and is integrally formed from high-strength alloy steel. Two housings 2 are symmetrically fixedly connected to the top of the U-shaped rod 1. The two symmetrically arranged housings 2 are made of aluminum alloy casting. Wheel grooves 9 are opened on the adjacent side of the two housings 2. Steering wheel assemblies are installed in the four wheel grooves 9. Each of the four steering wheel assemblies includes a first hub motor 20, and the first hub motor 20 is fixedly installed inside the housing 2. The drive shaft of the first hub motor 20 passes through the wheel groove 9 and is fixedly connected to a first wheel 5.

[0031] A hidden groove 10 is provided on the outer surface of a single housing 2 at the middle of one side of another housing 2. A photoelectric sensor 11 is fixedly connected to the inner wall of one side of the single housing 2 located in the hidden groove 10. The detection end of the photoelectric sensor 11 extends through the inner wall of the housing 2 into the hidden groove 10. The photoelectric sensor 11 is a laser reflection sensor with an adjustable detection distance.

[0032] Two housings 2 are offset from each other and have center positioning modules installed on their adjacent sides. Both center positioning modules include a housing 15, and the housing 15 is fixedly installed inside the housing 2. The housing 15 has a metal plate 27 inside. The metal plate 27 is made of silicon steel sheet with excellent magnetic permeability, which is precision ground after heat treatment. A limit rod 4 is fixedly connected to one side of the metal plate 27, and the limit rod 4 extends through the inner wall of the housing 15 to the outer side of the housing 2 and is slidably connected to the housing 15. A spring 28 is fixedly connected to the metal plate 27 on one side of the limit rod 4. A ring electromagnet 29 is fixedly connected to the other end of the spring 28. The coil of the ring electromagnet 29 is wound with H-class insulated enameled wire, has a built-in temperature sensor, and the magnetic yoke is made of electrical pure iron with hard chrome plating on the pole surface.

[0033] Both outer surfaces of the two housings 2 have through holes 6 extending into the interior. Lifting components are installed in both through holes 6 on the same side. Each lifting component includes a single-axis motor 25, which is fixedly installed at the bottom inner surface of the housing 2. A first screw 22 is fixedly connected to the drive end of the single-axis motor 25. A movable frame 13 is threaded onto the outer surface of the first screw 22. Slide rods 16 are fixedly connected to both sides of the movable frame 13. Slide rails 17 are slidably connected to both sides of the outer surfaces of the two slide rods 16, and the slide rails 17 are fixedly installed on the inner wall of the through holes 6. A first bearing seat 23 is fitted onto the outer surface of the first screw 22, and the seat of the first bearing seat 23 is fixedly installed at the top inner surface of the housing 2. The inner ring of the bearing inside the first bearing seat 23 is fixedly fitted onto the outer surface of the first screw 22. The single-axis motor 25 at the bottom drives the movable frame 13 at the top through the first screw 22. The slide rods 16 on both sides of the movable frame 13 achieve smooth lifting and lowering under the guidance of the slide rails 17. The upper and lower supports of the first bearing housing 23 ensure the rigidity of the transmission system. This upper and lower combined transmission method enables precise lifting and lowering under heavy loads.

[0034] Two directional wheel assemblies are symmetrically slidably connected to the bottom of the movable ends of the two lifting components. Each of the four directional wheel assemblies includes a guide rail 26, and the guide rail 26 is fixedly installed at the bottom of the slide rod 16. A movable seat 3 is slidably connected to the bottom of the guide rail 26. A second hub motor 8 is fixedly installed on the inner wall of one side of the movable seat 3. A second wheel 7 is fixedly connected to the drive end of the second hub motor 8. The second hub motor 8 drives the second wheel 7 to complete the walking function. The guide rail 26 and the movable seat 3 cooperate to ensure both the freedom of movement and the structural strength.

[0035] Two directional wheel assemblies on the same side are equipped with telescopic components. Both telescopic components include a mounting plate 24, which is fixedly connected to the adjacent movable frame 13. A dual-axis motor 14 is fixedly mounted on one side of the outer surface of the mounting plate 24. The two drive ends of the dual-axis motor 14 are fixedly connected to second screws 21. The outer surfaces of the two second screws 21 are threaded with slide seats 12, which are fixedly connected to the adjacent movable seats 3. The outer surfaces of the two second screws 21 are fitted with second bearing seats 19, and the seats of the second bearing seats 19 are fixedly connected to the adjacent movable frame 13. The inner ring of the bearing built into the second bearing seat 19 is fixedly fitted onto the outer surface of the second screw 21. The dual-axis motor 14 in the middle drives the slide seats 12 on both sides to move synchronously through the upper and lower arranged second screws 21, causing the movable seats 3 to slide along the guide rail 26. The upper and lower supports of the second bearing seats 19 ensure transmission accuracy. This symmetrical layout eliminates the off-center load problem that may occur with single-sided drive.

[0036] A controller 18 is fixedly installed inside a single housing 2 located on one side of the photoelectric sensor 11. The controller 18 is electrically connected to the photoelectric sensor 11, the ring electromagnet 29, the single-axis motor 25, the first hub motor 20, the second hub motor 8, and the dual-axis motor 14. The controller 18 is developed based on a 32-bit ARM processor and has a built-in motion control algorithm.

[0037] Working principle: After the track car moves to the set position, the photoelectric sensor 11 detects whether the center of the track car is at the position of the center rod of the track. If the center rod is detected, the controller 18 activates the annular electromagnet 29 to generate magnetic force to attract the metal plate 27. The metal plate 27 drives the limiting rod 4 to slide outward from the outer shell 15, so that the limiting rod 4 and the shell 2 together surround the center rod to achieve positioning. After positioning, the dual-axis motor 14 drives the two second screws 21 to rotate synchronously, driving the slide 12 to move along the second screws 21. The slide 12 pushes the movable seat 3 to slide on the guide rail 26, so that the four second wheels 7 move closer to the shell 2 and disengage from the center rod of the front and rear tracks. Then, the single-axis motor 25 drives the first screw 22 to rotate, driving the movable frame 13 to move upward along the slide rail 17 through the slide rod 16, so that the four second wheels 7 are lifted off the track surface. At this time, the controller 18 controls the four first wheel hub motors 20 on one side to rotate forward or reverse, driving the first wheels 5 to rotate through the drive shaft to achieve steering operation. After the steering is completed, the single-axis motor 25 reverses to lower and reset the movable frame 13, the dual-axis motor 14 reverses to reset the second wheel 7, the ring electromagnet 29 is de-energized and the spring 28 pushes the metal plate 27 to reset, the limit rod 4 retracts into the outer shell 15 to release the positioning, and all components return to their initial state.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dedicated track machine for array tracks, comprising a U-shaped rod (1), characterized in that: The top of the U-shaped rod (1) is symmetrically fixedly connected to two housings (2), and wheel grooves (9) are opened on the adjacent side of the two housings (2), and steering wheel assemblies are installed in the four wheel grooves (9); A hidden groove (10) is provided on the outer surface of a single housing (2) at the middle of one side of another housing (2). A photoelectric sensor (11) is fixedly connected to the inner wall of one side of the single housing (2) located in the hidden groove (10), and the detection end of the photoelectric sensor (11) extends through the inner wall of the housing (2) into the hidden groove (10). The two housings (2) are fitted with a center positioning module on their adjacent sides in a staggered manner; Both outer surfaces of the two housings (2) are provided with through holes (6) that extend into the interior. The two through holes (6) on the same side are equipped with lifting components. The bottom of the movable ends of the two lifting components are symmetrically connected to two directional wheel components. The two directional wheel assemblies on the same side are equipped with a telescopic component.

2. The dedicated track machine for array tracks according to claim 1, characterized in that: Each of the four steering wheel assemblies includes a first hub motor (20), and the first hub motor (20) is fixedly installed inside the housing (2). The drive shaft of the first hub motor (20) extends into the wheel groove (9) and is fixedly connected to the first wheel (5).

3. The dedicated track machine for array tracks according to claim 2, characterized in that: Both of the central positioning modules include a housing (15), and the housing (15) is fixedly installed inside the housing (2). The housing (15) has a metal plate (27) inside, and a limiting rod (4) is fixedly connected to one side of the metal plate (27). The limiting rod (4) extends through the inner wall of the housing (15) to the outer side of the housing (2) and is slidably connected to the housing (15).

4. The dedicated track machine for array tracks according to claim 3, characterized in that: The metal plate (27) is fixedly connected to a spring (28) on one side of the limiting rod (4), and the other end of the spring (28) is fixedly connected to a ring electromagnet (29).

5. The dedicated track machine for array tracks according to claim 4, characterized in that: Both lifting components include a single-axis motor (25), and the single-axis motor (25) is fixedly installed at the inner bottom of the housing (2). The drive end of the single-axis motor (25) is fixedly connected to a first screw (22). The outer surface of the first screw (22) is threaded with a movable frame (13). Both sides of the movable frame (13) are fixedly connected to slide rods (16). Both sides of the outer surface of the two slide rods (16) are slidably connected to slide rails (17), and the slide rails (17) are fixedly installed on the inner wall of the through hole (6).

6. The dedicated track machine for array tracks according to claim 5, characterized in that: The outer surface of the first screw (22) is fitted with a first bearing seat (23), and the seat of the first bearing seat (23) is fixedly installed on the inner top of the housing (2), and the inner ring of the bearing built into the first bearing seat (23) is fixedly fitted onto the outer surface of the first screw (22).

7. The dedicated track machine for array tracks according to claim 6, characterized in that: Each of the four directional wheel assemblies includes a guide rail (26), and the guide rail (26) is fixedly installed at the bottom of the slide bar (16). The bottom of the guide rail (26) is slidably connected to a movable seat (3). A second hub motor (8) is fixedly installed on the inner wall of one side of the movable seat (3). The drive end of the second hub motor (8) is fixedly connected to a second wheel (7).

8. The dedicated track machine for array tracks according to claim 7, characterized in that: Both of the telescopic components include a mounting plate (24), and the mounting plate (24) is fixedly connected to the adjacent movable frame (13). A dual-axis motor (14) is fixedly installed on one side of the outer surface of the mounting plate (24). The two drive ends of the dual-axis motor (14) are fixedly connected to the second screws (21). The outer surfaces of the two second screws (21) are threaded with slides (12), and the slides (12) are fixedly connected to the adjacent movable seat (3).

9. The dedicated track machine for array tracks according to claim 8, characterized in that: The outer surfaces of the two second screws (21) are fitted with second bearing seats (19), and the seat of the second bearing seat (19) is fixedly connected to the adjacent movable frame (13), and the inner ring of the bearing built into the second bearing seat (19) is fixedly fitted onto the outer surface of the second screw (21).

10. The dedicated track machine for array tracks according to claim 9, characterized in that: A controller (18) is fixedly installed on the inner side of a single housing (2) located on one side of the photoelectric sensor (11), and the controller (18) is electrically connected to the photoelectric sensor (11), the ring electromagnet (29), the single-axis motor (25), the first hub motor (20), the second hub motor (8), and the dual-axis motor (14).

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