Self-driven inhaul cable type track structure suitable for large ramp in mountainous area

Abstract

The invention provides a self-driven inhaul cable type track structure suitable for a large ramp in a mountainous area, and relates to the technical field of track traffic, the self-driven inhaul cable type track structure comprises sleepers and steel rails above the sleepers; an inhaul cable extending in the length direction of the steel rail is arranged below the bogie; a gear transmission device is connected to the lower portion of the bogie, and the inhaul cable is connected to the gear transmission device in a wound mode. The inhaul cable is static relative to the steel rail, and the length of the inhaul cable wound on the gear transmission device is kept unchanged in the moving process, so that the inhaul cable keeps traction force and braking force on operation of the bogie. The rail structure has the beneficial effects that the inhaul cable is adopted to replace a rack structure and a rack fastener of a traditional rack rail railway, the vehicle wheel shaft rotates to drive the winding inhaul cable to generate traction force and braking force, meanwhile, the longitudinal and transverse resistance of the rail structure is enhanced through the fixing device, the construction cost can be reduced, seamless performance of the rail structure can be guaranteed, and the service life of the rail structure is prolonged. The adaptability of the track and the lower foundation is enhanced, and the running stability of a train is improved.

Description

Technical Field

[0001] The invention relates to the technical field of rail transportation, in particular to a self-driven cable-type track structure suitable for large slopes in mountainous areas. Background Art

[0002] When a train passes through a large slope area or runs on a mountain railway in a scenic area, it needs greater traction and braking force, but the climbing ability of ordinary wheel-rail railways is limited. In order to solve this problem, domestic and foreign personnel have proposed a rack railway track structure, that is, adding a rack track between the traditional wheel-rail railway tracks, and equipping the bogie of the vehicle with a gear device to enable the train to run in large slope areas or mountainous areas. However, the rack of the traditional rack railway adopts a unit-type slotted rack structure, and the rack joint affects the stability and comfort of the train operation. For this reason, Chinese patent application CN114059399.A discloses a seamless rack track structure, including rails, racks, fastener systems and sleepers, wherein the racks and rails are seamless structures, and the racks and rails are installed on the sleepers through fasteners. Although this patent solves the joint problem of the traditional rack railway track to a certain extent, there are still problems such as the seamless rack increasing the stress on the bridge, the reliability of the connection between the rack and the sleeper, and the high cost.

[0003] In order to solve the above-mentioned shortcomings of the gear railway with large slopes in mountainous areas, it is necessary to propose a new track structure which is simpler and has lower engineering cost and is suitable for large slopes in mountainous areas. Summary of the invention

[0004] The present invention overcomes the shortcomings of the prior art and provides a self-driven cable-type track structure suitable for large slopes in mountainous areas. The cables are driven by the rotation of gears on the bogie, and the traction and braking force of the vehicle are increased through the cables. This can not only ensure the adaptability of the track structure and the lower foundation, but also eliminate the traditional rack structure, thereby reducing the project cost and facilitating replacement and maintenance.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] A self-driven cable-type track structure suitable for large slopes in mountainous areas comprises a plurality of sleepers arranged in parallel, wherein steel rails for bogies to travel are arranged on both sides above the sleepers, and the sleepers are laid along the length direction of the rails; a cable extending along the length direction of the rails is arranged below the bogie; a gear transmission device is connected below the bogie, and the cable is wound and connected to the gear transmission device; the cable is stationary relative to the rails, and the self-driven movement of the bogie will drive the gear transmission device to move relative to the cable, and the length of the cable wound around the gear transmission device remains unchanged during the movement, so that the cable maintains traction and braking force on the operation of the bogie.

[0007] Furthermore, the bogie includes a wheel axle, and the gear transmission device includes a driving gear and a transmission gear that mesh with each other. The driving gear is fixed on the wheel axle of the bogie, and the transmission gear is fixed on the rotating rod. The upper end of the rotating rod is freely rotatable and connected to the lower end of the connecting mechanism. The upper end of the connecting mechanism is connected to the bogie, and the cable is wound around the rotating rod. When the bogie is running, the wheel axle rotates to provide power to the driving gear, and the transmission gear drives the rotating rod to rotate.

[0008] Furthermore, the racks of the driving gear and the transmission gear both adopt curved teeth; and the rotating rod is dumbbell-shaped.

[0009] Furthermore, the cable is composed of one or more strands of high-strength steel strands, the middle section of the cable is wound around the rotating rod of the gear transmission device, and both ends of the cable are fixed to the ends of the track structure.

[0010] Furthermore, the fixing device is an iron seat with an open middle portion, the iron seat passes through the sleeper through a long bolt and is fixed on the sleeper through a nut; the fixing device is installed on the sleeper at intervals.

[0011] Furthermore, the length of the long bolt of the fixing device is 1.0 m.

[0012] Furthermore, a layer of rubber pad is provided between the fixing device and the sleeper.

[0013] Furthermore, the cross section of the sleeper is an isosceles trapezoid, and the slope angle θ of the isosceles trapezoid satisfies: 5.67<tanθ<28.63.

[0014] Furthermore, a fastener system is provided on the sleeper, and the rail is fixed on the fastener system; the cross-section of the rail is in the shape of an I-beam, and the fastener system includes pressing members correspondingly arranged on both sides, the pressing members include a base and an elastic member located on the base, the elastic member is formed by bending a metal strip of balanced thickness into one piece, one side of the base is upturned to form a limiting portion, and the other side of the base is connected to a pressing plate; a groove matching the shape of the lower end of the rail is formed between the pressing plates of the bases on both sides; the elastic member is arched in the middle, one side of the elastic member abuts against the limiting portion, and the other side of the elastic member abuts against the pressing plate; a second bolt is also connected to the base, the second bolt is located in the middle gap of the elastic member, a gasket is sleeved on the second bolt, the diameter of the gasket is larger than the width of the middle gap, and the top of the second bolt is threadedly connected with a second nut; the second nut is tightened on the second bolt, thereby pressing the gasket downward to press the elastic member, and finally pressing the elastic member against the pressing plate to fasten the rail.

[0015] Furthermore, bolt holes are reserved on both sides and the middle of the sleeper for installing rails and fixing devices, wherein the bolt holes for installing the fixing devices are through holes.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The self-driven cable-stayed track structure suitable for steep slopes in mountainous areas of the present invention adopts a gear transmission device, drives the rotating rod to rotate through the rotation of the wheel axle during train operation, provides traction and braking force for the vehicle through the cable, eliminates the rack structure of the traditional rack railway, can effectively reduce the cost of construction, operation and maintenance, and eliminates the rack structure, which can greatly improve the comfort of passengers when the train is running.

[0018] 2. The self-driven cable-type track structure suitable for large slopes in mountainous areas of the present invention has cables and seamless rails of seamless structure, which makes the mechanical properties of the cables and rails more coordinated and enhances the service performance of the track structure.

[0019] 3. The upper part of the fixing device of the self-driven cable-type track structure suitable for large slopes in mountainous areas of the present invention is an open structure, which allows the cable to move within a fixed range, can ensure the direction of train travel, and effectively improve the traction and braking force of the cable.

[0020] 4. The fixing device of the self-driven cable-stayed track structure suitable for large slopes in mountainous areas adopts long bolts to pass through the sleepers and penetrate into the foundation, thereby enhancing the longitudinal and lateral resistance of the track structure, effectively improving the stability of the track structure, and enhancing the smoothness and comfort of train operation.

[0021] 5. The cable structure of the present invention fundamentally frees the traditional rack railway rack system from the constraints on the lower structure. Since the rack and the corresponding fastener system are eliminated, the project investment can be significantly reduced and the adaptability of the track structure on different bases can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 It is a schematic diagram of the structure of the self-driven cable track of the present invention;

[0024] Figure 2 It is a structural schematic diagram of the self-driving cable-type track structure of the present invention after the bogie is removed;

[0025] Figure 3 It is a diagram of the gear transmission device of the self-driven cable track structure of the present invention;

[0026] Figure 4 It is a structural schematic diagram of a first embodiment of a fixing device for a self-driven cable-type track structure of the present invention;

[0027] Figure 5Schematic diagram of the sleeper of the self-driven cable-type track structure of the present invention;

[0028] Figure 6 It is a structural schematic diagram of a first embodiment of a fixing device for a self-driven cable-type track structure of the present invention;

[0029] Figure 7 is an enlarged view of the fastener system of the present invention;

[0030] Figure 8 is an exploded view of the fastener system of the present invention.

[0031] In the figure: gear transmission device 1, driving gear 101, transmission gear 102, connecting mechanism 103, rotating rod 104, cable 2, fixing device 3, iron seat 301, long bolt 302, nut 303, rubber pad 304, plate 305, angle steel 306, rail 4, fastener system 5, clamping member 501, base 5011, limiting part 50111, elastic component 5012, pressure plate 5013, slot 502, second bolt 503, gasket 504, second nut 505, sleeper 6, bolt hole 601, bogie 70, axle 71. DETAILED DESCRIPTION

[0032] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0033] like Figures 1 to 3 As shown, the present invention claims protection for a self-driven cable-type track structure suitable for large slopes in mountainous areas, comprising a plurality of sleepers 6 arranged in parallel, with rails 4 for bogies 70 to travel on being arranged on both sides above the sleepers 6, and the sleepers 6 are laid along the length direction of the rails 4; there are intervals between adjacent sleepers 6, and gravels can be laid in the intervals between adjacent sleepers 6, so as to evenly disperse the huge pressure generated by the passage of the train to the foundation, so as to achieve the effect of dispersing the pressure, reducing vibration and noise, and facilitating drainage to maintain the track gauge.

[0034] A cable 2 extending along the length direction of the rail 4 is arranged below the bogie 70. The cable 2 is composed of one or more high-strength steel strands. The cable 2 is made of high-strength steel wire with a strength of not less than 1570MPa, and can also be made of ultra-high molecular weight polyethylene to improve the strength and durability of the cable.

[0035] A gear transmission device 1 is connected to the lower part of the bogie 70, and the cable 2 is wound around the gear transmission device 1; the bogie 70 includes an axle 71, and the gear transmission device 1 includes a driving gear 101 and a transmission gear 102 that mesh with each other. Figure 3As shown, the racks of the driving gear 101 and the transmission gear 102 are both curved teeth to enhance the meshing and transmission capabilities of the gear transmission device. The driving gear 101 is fixed to the axle 71 of the bogie 70, and the transmission gear 102 is fixed to the rotating rod 104. The upper end of the rotating rod 104 is freely rotatably connected to the lower end of the connecting mechanism 103. The upper end of the connecting mechanism 103 is connected to the bogie 70, and the cable 2 is wound and connected to the rotating rod 104. In this embodiment, the cable 2 is stationary relative to the rail 4, that is, the cable 2 itself does not move. The middle section of the cable 2 is wound on the rotating rod 104 of the gear transmission device 1, and the two ends of the cable 2 are fixed to the ends of the track structure. Rollers are connected to both sides of the axle 71, and the rollers are rollingly connected to the rails 4. Therefore, when the bogie 70 moves, the rollers will rotate, thereby driving the axle 71 to rotate. The rotation of the axle 71 provides power to the driving gear 101, thereby allowing the transmission gear 102 to drive the rotating rod 104 to rotate.

[0036] Therefore, the self-driven movement of the bogie 70 will drive the gear transmission device 1 to move relative to the cable 2, and during the movement, the length of the cable 2 wrapped in the rotating rod 104 on the gear transmission device 1 remains unchanged, that is, the rotating rod 104 is in a state of paying out and reeling in the line. Therefore, during the operation, the cable 2 maintains traction and braking force on the operation of the bogie 70 (rotating rod 104).

[0037] Depend on Figure 3 It can be seen that the rotating rod 104 is dumbbell-shaped, and friction-increasing measures such as notches are taken on the rotating rod 104. On the one hand, the winding position of the cable 2 is limited to a certain extent, which facilitates the winding of the cable on the rotating rod 104. On the other hand, the friction between the cable 2 and the rotating rod 104 is increased, thereby improving the traction and braking force of the train.

[0038] like Figures 4 to 6 The fixing device 3 is an iron seat 301 with an opening in the middle. The cable 2 is limited at the opening of the iron seat 301 and is not prone to lateral deviation. The width of the opening is greater than the diameter of the rotating rod 104, so the rotating rod 104 can pass through it. The iron seat 301 passes through the sleeper 6 through a long bolt 302 and is fixed to the sleeper 6 through a nut 303. The lower end of the long bolt 302 is sharp, which helps to insert it into the foundation to enhance the longitudinal and lateral stability of the track structure. The fixing device 3 is installed on the sleeper 6 at intervals, which helps to keep the cable 2 straight over a long distance.

[0039] In this embodiment, the length of the long bolt 302 of the fixing device 3 is 1.0m. Therefore, according to the research of the inventor, this length can ensure that the lower end of the long bolt 302 penetrates into the foundation; a layer of rubber pad 304 is provided between the fixing device 3 and the sleeper 6; the thickness of the rubber pad 304 is 10 to 20mm, and the thickness of the rubber pad 304 is preferably 15mm. The provision of the rubber pad 304 can prevent the fixing device 3 from being subjected to excessive force and directly causing damage to the sleeper 6.

[0040] The cross section of the sleeper 6 is an isosceles trapezoid, and the slope angle θ of the isosceles trapezoid satisfies: 5.67<tanθ<28.63; this cross section is the cross section in the width direction of the sleeper 6, and this design can make the lower end surface of the sleeper 6 larger and have good stability after bearing load; according to the conditions satisfied by θ, θ is between 80° and 90°, because it has been verified by the inventor that this structure has the best load-bearing and pressure resistance.

[0041] like Figures 7 and 8 As shown, a fastener system 5 is provided on the sleeper 6, and the rail 4 is fixed on the fastener system 5; the cross section of the rail 4 is in an I-shape, and the fastener system 5 includes pressing members 501 correspondingly provided on both sides, the pressing member 501 includes a base 5011 and an elastic member 5012 located on the base 5011, and the elastic member 5012 is formed by bending a metal strip with balanced thickness into one piece, one side of the base 5011 is upwardly tilted to form a limiting portion 50111, and the other side of the base 5011 is connected to a pressing plate 5013; a slot 502 matching the shape of the lower end of the rail 4 is formed between the pressing plates 5013 of the bases 5011 on both sides; the elastic member 5012 is arched in the middle, One side of the elastic component 5012 abuts against the limiting portion 50111, and the other side of the elastic component 5012 abuts against the pressure plate 5013; a second bolt 503 is also connected to the base 5011, and the second bolt 503 is located in the middle gap of the elastic component 5012. A gasket 504 is sleeved on the second bolt 503, and the diameter of the gasket 504 is larger than the width of the middle gap. The top of the second bolt 503 is threadedly connected with a second nut 505; the second nut 505 is tightened on the second bolt 503, thereby pressing the gasket 504 downward to press the elastic component 5012, and finally pressing the elastic component 5012 against the pressure plate 5013 to fasten the rail 4.

[0042] like Figure 5 As shown, bolt holes 601 are reserved on both sides and the middle of the sleeper 6 for installing the rails 4 and the fixing device 3, wherein the bolt hole 601 located in the middle is for installing the fixing device 3, and the bolt hole 601 is a through hole; and the bolt holes 601 located on both sides are used for fixing the fastener system 5, and then the rails 4 are installed on the fastener system 5.

[0043] like Figure 6As shown, different from the first embodiment, the long bolt 302 of the fixing device 3 in the second embodiment is composed of embedded bolts, and the bottom of the embedded screw is composed of a plate 305 and an angle steel 306, so as to further enhance the connectivity between the track and the foundation, improve the longitudinal and lateral resistance of the track, and ensure the stability of the track structure.

[0044] The present invention discloses a self-driven cable-type track structure suitable for steep slopes in mountainous areas. A cable 2 is used to replace the rack structure and rack fasteners of a traditional rack railway, and a vehicle wheel axle is used to rotate and drive the cable 2 to generate traction and braking force. At the same time, a fixing device 3 is used to enhance the longitudinal and lateral resistance of the track structure, which can reduce the project cost, ensure the seamlessness of the track structure, enhance the adaptability of the track and the lower foundation, and improve the stability of train operation.

[0045] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-driven cable track structure suitable for large slopes in mountainous areas, characterized in that: The invention comprises a plurality of parallel rail sleepers (6), wherein steel rails (4) for a bogie (70) to travel are arranged on both sides above the rail sleepers (6), and the rail sleepers (6) are laid along the length direction of the steel rails (4); a cable (2) extending along the length direction of the steel rails (4) is arranged below the bogie (70); a gear transmission device (1) is connected below the bogie (70), and the cable (2) is wound around the gear transmission device (1); the cable (2) is stationary relative to the steel rails (4), and the self-driven movement of the bogie (70) drives the gear transmission device (1) to move relative to the cable (2), and during the movement, the length of the cable (2) wound around the gear transmission device (1) remains unchanged, so that the cable (2) maintains traction and braking force on the operation of the bogie (70).

2. The self-driven cable track structure suitable for large slopes in mountainous areas according to claim 1 is characterized in that: The bogie (70) comprises a wheel axle (71), and the gear transmission device (1) comprises a driving gear (101) and a transmission gear (102) meshing with each other, the driving gear (101) is fixed on the wheel axle (71) of the bogie (70), the transmission gear (102) is fixed on a rotating rod (104), the upper end of the rotating rod (104) is freely rotatably connected to the lower end of a connecting mechanism (103), the upper end of the connecting mechanism (103) is connected to the bogie (70), and the cable (2) is wound and connected to the rotating rod (104); when the bogie (70) is running, the wheel axle (71) rotates to provide power to the driving gear (101), and the transmission gear (102) drives the rotating rod (104) to rotate.

3. The self-driven cable track structure suitable for large slopes in mountainous areas according to claim 2 is characterized in that: The racks of the driving gear (101) and the transmission gear (102) both have curved teeth; the rotating rod (104) is in a dumbbell shape.

4. The self-driven cable track structure suitable for large slopes in mountainous areas according to claim 2, characterized in that: The cable (2) is composed of one or more strands of high-strength steel strands, the middle section of the cable (2) is wound around the rotating rod (104) of the gear transmission device (1), and the two ends of the cable (2) are fixed to the ends of the track structure.

5. The self-driven cable track structure suitable for large slopes in mountainous areas according to claim 2, characterized in that: The fixing device (3) is an iron seat (301) with an opening in the middle. The iron seat (301) passes through the sleeper (6) via a long bolt (302) and is fixed on the sleeper (6) via a nut (303). The fixing device (3) is installed on the sleeper (6) at intervals.

6. The self-driven cable track structure suitable for large slopes in mountainous areas according to claim 5, characterized in that: The length of the long bolt (302) of the fixing device (3) is 1.0 m.

7. The self-driven cable track structure suitable for steep slopes in mountainous areas according to claim 6, characterized in that: A layer of rubber pad (304) is provided between the fixing device (3) and the sleeper (6).

8. The self-driven cable track structure suitable for steep slopes in mountainous areas according to claim 1, characterized in that: The cross section of the rail sleeper (6) is an isosceles trapezoid, and the slope angle θ of the isosceles trapezoid satisfies: 5.67<tanθ<28.

63.

9. The self-driven cable track structure suitable for large slopes in mountainous areas according to any one of claims 1 to 8, characterized in that: The rail sleeper (6) is provided with a fastener system (5), and the rail (4) is fixed on the fastener system (5); the cross section of the rail (4) is in the shape of an I-beam, and the fastener system (5) includes pressing members (501) correspondingly arranged on both sides, the pressing member (501) includes a base (5011) and an elastic member (5012) located on the base (5011), and the elastic member (5012) is formed by bending a metal strip with a balanced thickness into one piece, one side of the base (5011) is upwardly curved to form a limiting portion (50111), and the other side of the base (5011) is connected to a pressing plate (5013); a slot (502) matching the shape of the lower end of the rail (4) is formed between the pressing plates (5013) of the bases (5011) on both sides; the elastic member (5012) is arched in the middle The base (5011) is in the shape of a spring, one side of the spring component (5012) is in contact with the limiting portion (50111), and the other side of the spring component (5012) is pressed against the pressing plate (5013); a second bolt (503) is also connected to the base (5011), the second bolt (503) is located in the middle gap of the spring component (5012), a gasket (504) is sleeved on the second bolt (503), the diameter of the gasket (504) is greater than the width of the middle gap, and a second nut (505) is threadedly connected to the top of the second bolt (503); the second nut (505) is tightened on the second bolt (503), thereby pressing the gasket (504) downward to press the spring component (5012), and finally pressing the spring component (5012) against the pressing plate (5013), thereby fastening the rail (4).

10. The self-driven cable track structure suitable for steep slopes in mountainous areas according to claim 1, characterized in that: Bolt holes (601) are reserved on both sides and the middle of the sleeper (6) for installing the rails (4) and the fixing device (3), wherein the bolt holes (601) for installing the fixing device (3) are through holes.

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