Adjustable rail train bogie beneficial to train mounting and climbing and rail system

Abstract

The invention discloses an adjustable rail train bogie beneficial to vehicle-mounted and climbing and a rail system, a pair of rubber wheels and a pair of steel wheels are coaxially mounted on an axle, and adhesive force between the rubber wheels and a rail is larger, so that larger driving force and braking force are provided for a rail train, and the adjustable rail train bogie can adapt to a line with a larger gradient. The two tires are used for bearing together, so that the bearing capacity of the bogie is improved, the bearing capacity of the bogie acts on the spring, the corresponding bearing capacity can be reflected by measuring the compression length a of the spring through the range finder, and then the tire pressure of the rubber tires can be automatically adjusted according to the change of the compression length a of the spring. The climbing gradient of an existing train bogie is generally not larger than 10%, and the climbing capacity of the bogie can reach 60% or above. And through cooperative use of the two tires, the overall bearing capacity and climbing capacity of the bogie are improved, so that the economical efficiency is guaranteed, and the applicability of the device is improved.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of rail transit devices, and in particular to an adjustable rail train bogie and rail system which are beneficial to vehicle-mounting and slope climbing. Background Art

[0002] A rail train is generally composed of a car body, bogie, brake device, coupler buffer device and internal equipment. The operation of a rail train is generally powered by the front of the train to pull the rear carriage, which also provides hardware foundation and auxiliary functions for the movement of the carriage through the bogie. The bogie is an integral component composed of two or more wheel pairs through special components, and plays the role of supporting the car body, guiding the vehicle to travel along the track and bearing various loads from the car body and the track.

[0003] Since the bogies in the prior art are generally only equipped with steel wheels or rubber wheels, the operation and braking of the carriages need to rely on the adhesion between the tires and the rails. However, due to the insufficient adhesion between the steel wheels and the rails, when facing long and steep slopes, especially when unloaded, the train bogies often idle due to the insufficient adhesion between the steel wheels and the rails, which may lead to inability to climb or energy waste. In order to cope with this phenomenon, most of the solutions currently adopted are to spray sand and other materials in front of the steel wheels to increase the friction between the steel wheels and the rails. However, this method has an effective viscosity-enhancing effect but is not very practical; and although the adhesion between the rubber wheels and the rails is sufficient, due to the material limitations of the rubber wheels themselves, their load-bearing capacity is insufficient and tire blowouts are prone to occur. Therefore, the prior art still lacks a train bogie that can have both friction performance and load-bearing performance.

[0004] Therefore, there is a need for a train bogie that can be equipped with both steel wheels and rubber wheels, so as to increase the friction between the wheelset and the track to provide greater driving force and braking force, while also having a stronger load-bearing capacity and an adjustable rail train bogie that is conducive to vehicle loading and climbing. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an adjustable rail train bogie and rail system that is beneficial to vehicle mounting and climbing.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions: An adjustable rail train bogie that is beneficial for vehicle loading and climbing, comprising a bogie body, an axle mounted on the bogie body, and a spring for shock absorption and buffering; a pair of rubber wheels and a pair of steel wheels are coaxially mounted on the axle; the invention is characterized in that it also comprises a distance meter and a tire pressure regulating device capable of adjusting the tire pressure of the rubber tire; the distance meter and the tire pressure regulating device are both connected to a control device; the distance meter collects a spring compression length a used to reflect the train load, and the control device controls the tire pressure regulating device according to the compression length a fed back by the distance meter so that the rubber wheel presents the following working state: When the compression length a is less than or equal to the set threshold value b, the tire pressure regulating device is controlled so that the tire pressure of the rubber tire is in direct proportion to the compression length a; When the compression length a is greater than the set threshold value b and the road is on a straight section, the tire pressure regulating device is controlled so that the tire pressure of the rubber tire is in direct proportion to the compression length a; When the compression length a is greater than the set threshold value b and the road is on a slope, the tire pressure regulating device is controlled so that the tire pressure of the rubber tire is in inverse proportion to the compression length a.

[0007] As a further improvement of the above technical solution: The set threshold b is set to the spring compression amount when the train is half loaded; when the compression length a is 0, the controller controls the tire pressure regulating device to adjust the tire pressure of the rubber wheel to the lowest value of its standard value; when the compression length a is equal to b, the controller controls the tire pressure regulating device to adjust the tire pressure of the rubber wheel to half of the sum of the lowest value of its standard value plus the highest value of its standard value.

[0008] When the compression length a reaches the maximum elastic limit of the spring; if on a straight road section, the controller controls the tire pressure regulating device to adjust the tire pressure of the rubber tire to its highest standard value; if on a sloped road section, the controller controls the tire pressure regulating device to adjust the tire pressure of the rubber tire to its lowest standard value.

[0009] The bogie body includes a rocking platform and a pair of side frames symmetrically installed on both sides of the rocking platform, and the side frames are installed on the inner sides of the rubber wheel and the steel wheel; the rocking platform includes a bolster and a spring tray spaced below the bolster, a spring is sandwiched between the spring tray and the bolster, and the springs are symmetrically distributed at both ends of the spring tray and the bolster.

[0010] The rangefinder is arranged on a side of the bolster close to the spring, and one end of the rangefinder is fixedly connected to the spring tray.

[0011] The bogie also includes a permanent magnet motor and a current transformer for monitoring the current size of the permanent magnet motor. The permanent magnet motor includes a rotor assembly mounted on the axle and a stator assembly mounted on the outside of the rotor assembly. The stator assembly is fixedly connected to the shaking table. The permanent magnet motor is connected to an external power supply.

[0012] The steel wheel is located on the inner side of the rubber wheel, and the tire pressure regulating device is installed on the outer side of the rubber wheel.

[0013] The current transformer, the distance meter and the tire pressure regulating device are connected via a control device signal.

[0014] The control device determines the running state of the train at this time according to the current value transmitted by the current transformer, wherein the output current value of the train in a straight section is smaller than the output current value in a slope section.

[0015] A track system matched with a rail train bogie comprises two parallel tracks one and two parallel tracks two located inside the two parallel tracks, the track one is matched with a rubber wheel and the track two is matched with a steel wheel; the track one and the track two are both paved throughout.

[0016] As a further improvement of the above technical solution: The track 1 and the track 2 are both paved throughout.

[0017] Compared with the prior art, the advantages of the present invention are: By coaxially installing a pair of rubber wheels and a pair of steel wheels on the axle, a greater driving force and braking force are provided for the rail train, so that it can adapt to lines with greater slopes; and the two tires carry the load together, so that the load-bearing capacity of the bogie is improved; and the compression length a of the spring is measured by a distance meter, and the tire pressure of the rubber tire can be automatically adjusted according to the change of the compression length a. The climbing gradient of the existing train bogie is generally not more than 10‰, while the climbing ability of the bogie of the present application can reach more than 60‰. By using the two tires in combination, the overall load-bearing capacity and climbing ability of the bogie are improved, thereby ensuring both economy and improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The structure of the bogie and track system of the railway train in the embodiment is shown in FIG. Figure 1 ; Figure 2 The structure of the bogie and track system of the railway train in the embodiment is shown in FIG. Figure 2 ; Figure 3 is a schematic structural diagram of a rail vehicle bogie in an embodiment (side frame not shown); Figure 4 It is a schematic structural diagram of a rocking platform of a rail vehicle bogie in an embodiment.

[0019] The numbers in the figure represent: 1. bogie body; 11. rocking table; 111. bolster; 112. spring tray; 113. spring; 114. distance meter; 12. side frame; 2. axle; 3. rubber wheel; 4. steel wheel; 5. permanent magnet motor; 6. load-bearing saddle; 7. track one; 8. track two; 9. current transformer. DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] like Figures 1 to 4 As shown, the adjustable rail train bogie that is beneficial to vehicle loading and climbing of this embodiment includes a bogie body 1, an axle 2 installed on the bogie body 1, and a spring 113 for shock absorption and buffering; a pair of rubber wheels 3 and a pair of steel wheels 4 are coaxially installed on the axle 2; it also includes a distance meter 114 and a tire pressure regulating device that can adjust the tire pressure of the rubber wheel 3; the distance meter 114 and the tire pressure regulating device are both connected to the control device; the distance meter 114 collects the compression length a of the spring 113 used to reflect the train load, and the control device controls the tire pressure regulating device according to the compression length a fed back by the distance meter 114 so that the rubber wheel 3 presents the following working state: When the compression length a is less than or equal to the set threshold value b, the tire pressure regulating device is controlled so that the tire pressure of the rubber tire 3 is in direct proportion to the compression length a; When the compression length a is greater than the set threshold value b and is on a straight road section, the tire pressure regulating device is controlled so that the tire pressure of the rubber tire 3 is in direct proportion to the compression length a; When the compression length a is greater than the set threshold value b and the road is on a slope, the tire pressure regulating device is controlled so that the tire pressure of the rubber wheel 3 is inversely proportional to the compression length a. By setting a tire pressure regulating device, such as the tire inflation and deflation system PSI (PRESSURE SYSTEMS INTERNATIONAL) in this embodiment, or the central tire inflation and deflation system (CTI / DS), it is an advanced tire management system that can automatically inflate and deflate the tire, which belongs to the prior art and is used to adjust the tire pressure of the rubber wheel 3 in real time. The greater the tire pressure of the rubber wheel 3, the greater its load-bearing capacity, and the corresponding friction capacity is weaker. Therefore, its load-bearing capacity needs to be guaranteed on a straight road section, and its friction capacity needs to be guaranteed on a slope. The main difficulty at present is how to have both climbing performance and load-bearing performance. Therefore, it is necessary to coaxially install the rubber wheel 3 and the steel wheel 4, and regulate the tire pressure of the rubber wheel 3 for different sections and different loads. In the no-load state, the compression length a of the spring 113 is the smallest, and in the fully loaded state, the spring 113 reaches its maximum deformation, at which time the compression length a is the largest. In the case of a low load, there is no need for the rubber wheel 3 to additionally improve its friction performance, and the adhesion requirement between the train and the track can be met only by the friction performance of the rubber wheel 3 and the steel wheel 4 itself. Therefore, when the compression length a is less than or equal to the set threshold value b, the tire pressure regulating device is controlled to increase the tire pressure of the rubber wheel 3 as the compression length a increases, thereby focusing on improving its load-bearing performance; and when the compression length a is greater than the set threshold value b, the friction performance of the rubber wheel 3 and the steel wheel 4 itself cannot meet the adhesion requirement between the train and the track when climbing. Therefore, on the slope section, it is necessary to reduce the tire pressure of the rubber wheel 3 to give full play to the friction performance of the rubber wheel 3, thereby improving the adhesion between the bogie and the track. At this time, the PSI system can reverse the load of the bogie according to the compression amount of the spring 113, thereby correspondingly reducing the tire pressure of the rubber wheel 3. When the full load is reached, the tire pressure of the rubber wheel 3 is reduced to the lowest value of its standard value again; and in the straight section, since there is no need to climb, even if the compression length a is greater than the set threshold b, there is still no need to reduce the tire pressure. Therefore, at this time, the controller controls the tire pressure regulating device to increase the tire pressure of the rubber wheel 3 as the compression length a increases, focusing on its load-bearing capacity on the straight section. In this embodiment, the rubber wheel 3 and the steel wheel 4 are both in contact with the track. Since the friction coefficient of the rubber wheel 3 is greater than the friction coefficient of the steel wheel 4, the adhesion between the rubber wheel 3 and the track is greater, which provides a greater driving force and braking force for the rail train, so it can adapt to the line with a larger slope.The rubber wheel 3 and the steel wheel 4 are loaded together, which can improve the load-bearing capacity of the bogie, and the load-bearing capacity of the bogie acts on the spring 113. The compression length a of the spring 113 is measured by the distance meter 114 to reflect the corresponding load-bearing capacity, and then the tire pressure of the rubber wheel 3 can be automatically adjusted according to the compression length a of the spring 113. The climbing gradient of the existing train bogie is generally not more than 10‰, while the climbing ability of the bogie of the present application can reach more than 60‰. Through the coordinated use of the two tires, the overall load-bearing capacity, climbing ability and service life of the bogie are improved, thereby ensuring both economy and improving the applicability of the device.

[0022] In this embodiment, the threshold value b is set to the spring compression when the train is half loaded; when the compression length a is the minimum, the controller controls the tire pressure regulating device to adjust the tire pressure of the rubber wheel 3 to the minimum value of its standard value; when the compression length a is equal to b, the controller controls the tire pressure regulating device to adjust the tire pressure of the rubber wheel 3 to half of the sum of the minimum value of its standard value plus the maximum value of its standard value. By normalizing the corresponding relationship between the compression length a of the spring 113 and the tire pressure of the rubber wheel 3, the compression length a is normalized to [0,1] from the no-load state to the full-load state, and its tire pressure is also normalized to [minimum value of standard value, maximum value of standard value]; therefore, the threshold value b is set to the spring compression length when the train is half loaded, and the tire pressure of the rubber wheel 3 is set to half of the sum of the minimum value of the standard value plus the maximum value of the standard value. This improves the load-bearing capacity of the train bogie while ensuring that the controller can accurately and smoothly regulate the overall tire pressure.

[0023] In this embodiment, when the compression length a reaches the maximum elastic limit of the spring 113, if on a straight road section, the controller controls the tire pressure regulating device to adjust the tire pressure of the rubber wheel 3 to the highest value of its standard value; if on a sloped road section, the controller controls the tire pressure regulating device to adjust the tire pressure of the rubber wheel 3 to the lowest value of its standard value. On a sloped road section, it is necessary to focus on improving the friction performance to improve the climbing ability; while on a straight road section, it is necessary to focus on improving the carrying capacity. Therefore, on different road sections, the tire pressure of the corresponding rubber wheel 3 under full load is set to the highest value of the standard value and the lowest value of the standard value, respectively, so as to best exert its different performance and improve the practicality of the device.

[0024] In this embodiment, the bogie body 1 includes a rocking platform 11, and a pair of side frames 12 symmetrically mounted on both sides of the rocking platform 11, and the side frames 12 are mounted on the inner sides of the rubber wheel 3 and the steel wheel 4; the rocking platform 11 includes a bolster 111, and a spring tray 112 arranged below the bolster 111 at intervals, and a spring 113 is sandwiched between the spring tray 112 and the bolster 111, and the springs 113 are symmetrically distributed at both ends of the spring tray 112 and the bolster 111; in this embodiment, it also includes a load-bearing saddle 6 mounted on the axle 2, and the load-bearing saddle 6 is connected to the side frames 12. The force generated by the interaction between the tire and the track is transmitted to the load-bearing saddle 6 through the axle 2, and then transmitted to the bogie body 1 through the side frames 12 connected to the load-bearing saddle 6, thereby driving the vehicle body to move; the gravity of the vehicle body is also transmitted to the load-bearing saddle 6 through the bogie body 1, and then transmitted to the axle 2, the rubber wheel 3 and the steel wheel 4, thereby realizing the load-bearing function. And by installing the bearing saddle 6 and the side frame 12 on the inner side of the steel wheel 4, the length of the axle 2 is shortened, and its stress state is greatly improved. At the same time, the overall volume of the bogie body 1 is significantly reduced, so it can be adapted to the transportation methods with high requirements on the size of the train bogie, such as monorail and hanging rail. Therefore, the bearing capacity and force transmission capacity of the bogie are improved, and the volume of the bogie is reduced, and the adaptability is enhanced. The rocking platform 11 basically forms an equal strength beam through the bolster 111, which is conducive to lowering the center of gravity of the bogie, improving the running stability and running speed of the vehicle, and the spring 113 is used for buffering and support when the vehicle is running. When subjected to the force of load or vibration, the spring 113 can produce corresponding deformation and rebound force, thereby playing a buffering role, making the vehicle run more stable and stable. At the same time, the spring 113 will also bear the weight and load of the vehicle, thereby enhancing the bearing capacity of the bogie. The spring 113 is symmetrically installed at both ends of the spring tray 112 and the bolster 111, so as to facilitate the replacement of the spring 113 and enhance the service life of the device.

[0025] In this embodiment, the rangefinder 114 is arranged on the side of the bolster 111 close to the spring 113, and one end thereof is fixedly connected to the spring tray 112. One end of the rangefinder 114 is fixedly connected to the spring tray 112, and moves with the movement of the spring tray 112, thereby ensuring the accuracy of measuring the compression length a of the spring 113.

[0026] In this embodiment, the bogie also includes a permanent magnet motor 5 and a current transformer 9 for monitoring the current size of the permanent magnet motor 5. The permanent magnet motor 5 includes a rotor assembly mounted on the axle 2 and a stator assembly mounted on the outside of the rotor assembly. The stator assembly is fixedly connected to the shaking table 11; the permanent magnet motor 5 is connected to an external power supply. The control device determines the running state of the train at this time according to the current value transmitted by the current transformer 9, wherein the output current value of the train in a straight section is less than the output current value in a slope section. When the train bogie moves in a straight section, the motor output power of the permanent magnet motor 5 will be less than the output power of the permanent magnet motor 5 when it is in an uphill and downhill section. Therefore, according to the current transformer 9 monitoring the current size of the permanent magnet motor 5, it can be judged whether the train bogie is running in a straight section or an uphill and downhill section at this time, that is, when the train runs from a straight section to an uphill and downhill section, the current value will increase. At this time, the load capacity is judged according to the compression length a, so as to judge whether to choose to improve its friction performance or continue to improve its load-bearing performance. Moreover, the permanent magnet motor 5 in the present device can be used as a motor or a generator according to different usage conditions. When used as a motor: when the stator assembly winding is energized, a rotating magnetic field is generated, and the axle 2 is driven to rotate under the action of the rotating magnetic field. This rotation avoids transmission devices such as gearbox reduction devices and couplings, thereby reducing mechanical transmission consumption, reducing transmission noise, and improving the transmission efficiency of the motor. When used as a generator: the rotor assembly of the permanent magnet motor 5 is mounted on the axle 2 and rotates with the rotation of the axle 2; the stator assembly is fixedly connected to the rocking pillow 111 in the rocking table 11, so that when the rotor assembly rotates with the axle 2, the stator assembly remains stationary, so that the effect of cutting the magnetic flux lines occurs inside the permanent magnet motor 5, thereby completing the power generation function, realizing energy recovery, and improving energy utilization.

[0027] In this embodiment, the steel wheel 4 is located on the inner side of the rubber wheel 3, and the tire pressure regulating device is installed on the outer side of the rubber wheel 3. In this device, the positions of the steel wheel 4 and the rubber wheel 3 are not limited. Both the rubber wheel 3 and the steel wheel 4 can be arranged on the outer side, and it is only necessary to lay the tracks that match them simultaneously. However, since the existing railway tracks in the country are quite complete and fixed, in order to improve adaptability and reduce resource waste. Therefore, the steel wheel 4 is arranged on the inner side of the rubber wheel 3, and the tire pressure regulating device is installed on the outer side of the rubber wheel 3. It is only necessary to add a track that matches the rubber wheel 3 on the outer side of the existing track to realize the use of the device; and at this time, it is also possible to install the load-bearing saddle 6 and the side frame 12 on the inner side of a pair of steel wheels 4, so as to make full use of the space and reduce the overall volume of the bogie, so as to achieve better adaptability and practical usability.

[0028] In this embodiment, the current transformer 9, the distance meter 114 and the tire pressure regulating device are connected via the control device signal. In this way, the train running section is determined according to the current size, and the tire pressure is adjusted according to the load. This makes the entire bogie more automated and adaptable to different working conditions.

[0029] The track system matched with the rail train bogie of this embodiment includes two parallel tracks 1 7 and two parallel tracks 2 8 located inside the tracks 1 7 and 8, the tracks 1 7 is matched with the rubber wheel 3, the tracks 2 8 is matched with the steel wheel 4, and the tracks 1 7 and 2 8 are all paved. The track system includes two independent and parallel tracks 1 7 and 2 8, so as to adapt to the use of the coaxially rotating rubber wheel 3 and steel wheel 4, and because the rubber wheel 3 and the steel wheel 4 can work together or separately in different states, the tracks 1 7 and 2 8 need to be installed on the entire road section to adapt to the use of the bogie.

[0030] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any technician familiar with the art can make many possible changes and modifications to the technical solution of the present invention by using the technical content disclosed above without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention should fall within the scope of protection of the technical solution of the present invention.

Claims

1. An adjustable rail vehicle bogie that is advantageous for vehicle loading and climbing, comprising a bogie body (1), an axle (2) mounted on the bogie body (1), and a spring (113) for shock absorption and buffering; a pair of rubber wheels (3) and a pair of steel wheels (4) are coaxially mounted on the axle (2); the characteristics are: It also includes a distance meter (114) and a tire pressure regulating device capable of adjusting the tire pressure of the rubber wheel (3); the distance meter (114) and the tire pressure regulating device are both connected to a control device; the distance meter (114) collects a compression length a of a spring (113) for reflecting the train load, and the control device controls the tire pressure regulating device according to the compression length a fed back by the distance meter (114) so ​​that the rubber wheel (3) presents the following working state: When the compression length a is less than or equal to a set threshold value b, the tire pressure regulating device is controlled so that the tire pressure of the rubber wheel (3) is in direct proportion to the compression length a; When the compression length a is greater than a set threshold value b and the road is on a straight section, the tire pressure regulating device is controlled so that the tire pressure of the rubber wheel (3) is in direct proportion to the compression length a; When the compression length a is greater than a set threshold value b and the road is on a slope, the tire pressure regulating device is controlled so that the tire pressure of the rubber wheel (3) is in inverse proportion to the compression length a.

2. The rail vehicle bogie according to claim 1, characterized in that: The set threshold value b is set to the spring compression amount when the train is half loaded; when the compression length a is 0, the controller controls the tire pressure regulating device to adjust the tire pressure of the rubber wheel (3) to the lowest value of its standard value; when the compression length a is equal to b, the controller controls the tire pressure regulating device to adjust the tire pressure of the rubber wheel (3) to half of the sum of the lowest value of its standard value plus the highest value of its standard value.

3. The rail vehicle bogie according to claim 2, characterized in that: When the compression length a reaches the maximum elastic limit of the spring (113); if on a straight road section, the controller controls the tire pressure regulating device to adjust the tire pressure of the rubber wheel (3) to the highest value of its standard value; If on a sloped road section, the controller controls the tire pressure regulating device to adjust the tire pressure of the rubber tire (3) to the lowest value of its standard value.

4. The rail vehicle bogie according to claim 1, characterized in that: The bogie body (1) comprises a rocking platform (11) and a pair of side frames (12) symmetrically mounted on both sides of the rocking platform (11), wherein the side frames (12) are mounted on the inner sides of the rubber wheel (3) and the steel wheel (4); the rocking platform (11) comprises a rocking bolster (111) and a spring tray (112) spaced below the rocking bolster (111), a spring (113) being sandwiched between the spring tray (112) and the rocking bolster (111), and the springs (113) being symmetrically distributed at both ends of the spring tray (112) and the rocking bolster (111).

5. The rail vehicle bogie according to claim 4, characterized in that: The distance meter (114) is arranged on a side of the bolster (111) close to the spring (113), and one end of the distance meter (114) is fixedly connected to the spring tray (112).

6. The rail vehicle bogie according to claim 4, characterized in that: The bogie further comprises a permanent magnet motor (5) and a current transformer (9) for monitoring the current of the permanent magnet motor (5); the permanent magnet motor (5) comprises a rotor assembly mounted on the axle (2) and a stator assembly mounted on the outside of the rotor assembly; the stator assembly is fixedly connected to the shaking table (11); and the permanent magnet motor (5) is connected to an external power supply.

7. The rail vehicle bogie according to claim 1, characterized in that: The steel wheel (4) is located on the inner side of the rubber wheel (3), and the tire pressure regulating device is installed on the outer side of the rubber wheel (3).

8. The rail vehicle bogie according to claim 6, characterized in that: The current transformer (9), the distance meter (114) and the tire pressure regulating device are connected via a control device signal.

9. The rail vehicle bogie according to claim 6, characterized in that: The control device determines the running state of the train at this time according to the current value transmitted by the current transformer (9), wherein the output current value of the train in a straight section is smaller than the output current value in a slope section.

10. A track system matching the rail vehicle bogie according to any one of claims 1 to 9, characterized in that: It comprises two parallel rails 1 (7) and two parallel rails 2 (8) located inside the rails 1 (7), the rails 1 (7) are matched with the rubber wheels (3) and the rails 2 (8) are matched with the steel wheels (4); the rails 1 (7) and the rails 2 (8) are all paved.

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