Built-in suspended sky-rail transportation system

Abstract

The present invention discloses a built-in suspended air-rail transportation system, which relates to the field of rail transportation. The built-in suspended air-rail transportation system includes a carriage, a bogie and a running wheel device, wherein the carriage is rotatably connected to the bogie through a connecting frame, and the bogie includes a frame, a first-series suspension vibration reduction device is arranged between the running wheel device and the frame, and also includes a second-series suspension vibration reduction device, wherein the second-series suspension vibration reduction device is arranged at the connection between the frame and the connecting frame. The present invention effectively solves the problem of huge vibration and noise generated between the frame and the connecting frame of the built-in suspended air-rail transportation system, and greatly improves the vibration reduction and noise reduction effect of the entire built-in suspended air-rail transportation system.

Description

Technical Field

[0001] The present invention relates to the field of rail transportation, and in particular to a built-in suspended sky-rail transportation system. Background Art

[0002] The ground public transportation system has the natural defects of small capacity, high pollution, large road occupation and insufficient ground road space. The subway has a large capacity, no pollution, and does not occupy ground road space, but it faces the limitations of limited underground space, high subway cost, insufficient economy and geological conditions. Suspended rail transit can effectively utilize the space above the ground and has its own unique advantages in solving traffic problems. Humans have been using suspended rail transit systems for more than 100 years, and currently there are lines in operation in China, Germany and Japan.

[0003] After years of development, the existing suspended rail transit system includes carriages, bogies, running wheel devices, a series of suspension systems, traction devices, basic braking devices, drive devices, guide wheel devices, stabilizing wheel devices and other devices. Among them, the series of suspension systems is a series of suspension vibration reduction devices arranged between the frame of the bogie and the running wheel device, which effectively solves the problem of large vibration and noise generated between the frame and the running wheel device of the entire suspended rail transit system. However, huge vibration and noise will also be generated between the frame of the suspended rail transit system and the connecting frame connected to the carriage, and between the carriage and the connecting frame. Therefore, the entire suspended rail transit system cannot overcome the above-mentioned defects if it is simply equipped with a series of suspension vibration reduction devices, which has limitations and poor vibration reduction and noise reduction effects. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] The invention provides a built-in suspension air-rail transportation system for improving vibration reduction and noise reduction effects.

[0006] (II) Technical solution

[0007] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0008] The present invention provides an internally suspended air-rail transportation system, comprising a carriage, a bogie, a driving device and a running wheel device, wherein the carriage is rotatably connected to the bogie through a connecting frame, the bogie comprises a frame, a primary suspension damping device is arranged between the running wheel device and the frame, and further comprises a secondary suspension damping device, wherein the secondary suspension damping device is arranged at the connection between the frame and the connecting frame, and the secondary suspension damping device is an air spring, wherein the elastic coefficient k2 is 0.01 kN / mm-1 kN / mm, and the damping c2 is 0.01 kNs / mm-50 kNs / mm;

[0009] The running wheel device comprises a running wheel pair arranged in pairs, the running wheel pair comprises two symmetrically arranged running wheels and a wheel pair axle connecting the two running wheels, the wheel pair axle is connected to a driving device, the driving device is electrically connected to a vehicle controller in the carriage, at least one primary suspension damping device is arranged between the wheel pair axle and the frame, the primary suspension damping device is an air spring, the elastic coefficient k1 thereof is 0.02kN / mm-1kN / mm, and the damping c1 is 0.005kNs / mm-10kNs / mm;

[0010] Two first-order suspension damping devices are arranged between the wheelset axle and the frame, the wheelset axle is a bending shaft forming an axisymmetric structure, the bending shaft includes two upwardly inclined or downwardly inclined straight shaft units symmetrically arranged along the vertical axis, the bending shaft is arc-shaped or V-shaped, the upwardly inclined straight shaft unit is a straight shaft unit inclined upward from the end away from the running wheel to the end close to the running wheel, and the downwardly inclined straight shaft unit is a straight shaft unit inclined downward from the end away from the running wheel to the end close to the running wheel; the running wheel device also includes a 0-order suspension damping device, the 0-order suspension damping device is an elastic damping layer coated on the outside of the running wheel, the mass m0 of the 0-order suspension damping device is 10kg-500kg, the elastic coefficient k0 is 0.1kN / mm-5kN / mm, and the damping c0 is 0.001kNs / mm-2kNs / mm;

[0011] The top of the carriage is connected to the connecting frame through a connecting piece; the built-in suspension air-rail transportation system also includes a three-series suspension vibration damping device, which is arranged at the connection between the connecting frame and the connecting piece; the connecting frame is rotatably connected to the connecting piece through a connecting pin, and the three-series suspension vibration damping device is an elastic and damping material layer at least partially formed on the outer wall of the connecting pin, and the elastic and damping material layer is located in the pin hole on the connecting frame through which the connecting pin is passed and in the pin hole on the connecting piece through which the connecting pin is passed, and the elastic coefficient k3 of the three-series suspension vibration damping device is 0.05kN / mm-50kN / mm, and the damping c3 is 0.005kNs / mm-10kNs / mm.

[0012] According to the present invention, the frame is provided with a mounting hole for the connecting frame to pass through, and the secondary suspension vibration reduction device is arranged in the mounting hole and sleeved on the outside of the connecting frame.

[0013] According to the present invention, the mass m1 of the primary suspension damping device is 50kg-3000kg.

[0014] The mass m2 of the secondary suspension vibration reduction device is 10kg-1000kg.

[0015] According to the present invention, the mass m3 of the three-system suspension vibration reduction device is 500kg-20000kg.

[0016] (III) Beneficial effects

[0017] The beneficial effects of the present invention are:

[0018] On the basis of the structure of the existing suspended rail transit system with a first-series suspension vibration reduction device, the present invention adds a second-series suspension vibration reduction device at the connection between the bogie frame of the built-in suspension air-rail transit system and the connecting frame connected to the carriage, which effectively solves the huge vibration and noise problems generated between the frame and the connecting frame of the built-in suspension air-rail transit system, and greatly improves the vibration reduction and noise reduction effect of the entire built-in suspension air-rail transit system. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a partial schematic diagram of the built-in suspended sky-rail transportation system of the present invention. Figure 1 , showing a bogie, a connecting frame, a running wheel device, a primary suspension damping device and a secondary suspension damping device;

[0020] Figure 2 This is a partial schematic diagram of the built-in suspended sky-rail transportation system of the present invention. Figure 2 , showing a bogie, a connecting frame, a running wheel device, two primary suspension damping devices and a secondary suspension damping device;

[0021] Figure 3 This is a partial schematic diagram of the built-in suspended sky-rail transportation system of the present invention. Figure 3 , showing a downward inclined running wheel device;

[0022] Figure 4 This is a partial schematic diagram of the built-in suspended sky-rail transportation system of the present invention. Figure 4 , showing an upper inclined running wheel device;

[0023] Figure 5 This is a partial schematic diagram of the built-in suspended sky-rail transportation system of the present invention. Figure 5 , showing the track beam, bogie, connecting frame, connecting parts, running wheel device, primary suspension vibration reduction device, secondary suspension vibration reduction device and tertiary suspension vibration reduction device;

[0024] Figure 6 is a front view of the kinetic model of the present invention;

[0025] Figure 7 It is a side view of the kinetic model of the present invention.

[0026] In the figure:

[0027] 1. Carriage; 2. Connecting frame; 3. Primary suspension damping device; 4. Secondary suspension damping device; 5. Tertiary suspension damping device; 6. Frame; 7. Connecting piece; 8. Connecting pin; 9. Wheel set axle; 10. Running wheel; 91. Straight axle unit. DETAILED DESCRIPTION

[0028] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0029] like Figures 1 to 7 As shown, the present invention discloses a built-in suspension air-rail transportation system, which includes a carriage 1, a track beam, a bogie, a connecting frame 2, a running wheel device, a primary suspension damping device 3, a secondary suspension damping device 4, and a tertiary suspension damping device 5. The track beam is erected in the air. The bogie includes a frame 6. A connecting member 7 is provided on the top of the carriage 1, and the connecting member 7 is rotatably connected to the bottom of the connecting frame 2 through a connecting pin 8, and the top of the connecting frame 2 is connected to the frame 6. The connection between the carriage 1 and the bogie is preferably a flexible connection to achieve a vibration reduction effect.

[0030] Specifically, the running wheel device includes a plurality of pairs of running wheel pairs, each pair of running wheel pairs includes two symmetrically arranged running wheels 10 and a wheel pair axle 9, and the two ends of the wheel pair axle 9 are respectively connected to the two running wheels 10. The wheel pair axle 9 is connected to the driving device, and the driving device is electrically connected to the vehicle controller in the carriage 1. The wheel pair axle 9 can be a straight axle, which is arranged perpendicular to the running wheel 10, or a bent axle, which is arranged obliquely to the running wheel 10. The shape of the bent axle is arc-shaped or V-shaped, and of course it can be designed into other shapes according to actual needs.

[0031] The present application takes a V-shaped bending shaft as an example, and the upward inclined bending shaft includes two upward inclined straight shaft units 91 symmetrically arranged along the vertical axis. The upward inclined straight shaft unit 91 is a straight shaft unit 91 that is inclined upward from the end away from the running wheel 10 to the end close to the running wheel 10. The downward inclined bending shaft includes two downward inclined straight shaft units 91 symmetrically arranged along the vertical axis. The downward inclined straight shaft unit 91 is a straight shaft unit 91 that is inclined downward from the end away from the running wheel 10 to the end close to the running wheel 10. Whether it is an upward inclined bending shaft or a downward inclined bending shaft, the bogie has a lateral force, thereby improving the lateral stability.

[0032] In the present application, the outer part of the running wheel 10 is coated with elastic damping material, such as a polymer material with elasticity and damping properties such as rubber or silicone, which can reduce the vibration level of the running wheel 10 when it travels on the track beam. The elastic and damping material layer provided at the running wheel 10 is equivalent to a 0 series suspension damping device, and its mechanical parameters can be determined by simulation calculation. The mass m0 of the 0 series suspension damping device is 10kg-500kg, the elastic coefficient k0 is 0.1kN / mm-5kN / mm, and the damping c0 is 0.001kNs / mm-2kNs / mm.

[0033] In the present application, the bottom end of the primary suspension damping device 3 is connected to the wheel set axle 9, and the top end thereof is connected to the frame 6. There can be two or more primary suspension damping devices 3. When there are two primary suspension damping devices 3, the bottom end of one primary suspension damping device 3 is connected to a straight shaft unit 91 of the bending shaft, and the top end is connected to the frame 6; the bottom end of the other primary suspension damping device 3 is connected to another straight shaft unit 91 of the bending shaft, and the top end is connected to the frame 6. When two primary suspension damping devices 3 are used, the vibration reduction and noise reduction effect is better.

[0034] The primary suspension damping device 3 can use an air spring, which has elastic damping characteristics, and its mechanical parameters are determined by simulation calculation. The mass m1 of the primary suspension damping device 3 is 50kg-3000kg, the elastic coefficient k1 is 0.02kN / mm-1kN / mm, and the damping c1 is 0.005kNs / mm-10kNs / mm. It can play the functions of support, buffering, braking, height adjustment and angle adjustment, reduce the vibration and noise generated between the frame 6 and the running wheel device, and achieve good vibration reduction and noise reduction effects.

[0035] In the present application, a mounting hole for the connecting frame 2 is provided on the frame 6, and the secondary suspension damping device 4 is provided in the mounting hole and sleeved on the outside of the connecting frame 2. The secondary suspension damping device 4 can adopt an air spring with elastic damping characteristics, and its mechanical parameters are determined by simulation calculation. The m2 of the secondary suspension damping device 4 is 10kg-1000kg, the elastic coefficient k2 is 0.01kN / mm-1kN / mm, and the damping c2 is 0.01kNs / mm-50kNs / mm, which reduces the vibration and noise generated between the frame 6 and the connecting frame 2, and the vibration reduction and noise reduction effect is better.

[0036] In the present application, two connecting members 7 are provided on the top of the carriage 1, the connecting frame 2 is provided between the two connecting members 7, and the connecting pin 8 passes through one of the connecting members 7, the connecting frame 2 and the other connecting member 7 in sequence, so that the connecting frame 2 is fixedly connected to the two connecting members 7. The connecting pin 8 is a steel pin, and the steel pin is used to connect the carriage 1 and the connecting frame 2, which has good seismic resistance. The three-series suspension vibration reduction device 5 is an elastic and damping material layer at least partially formed on the outer wall of the connecting pin 8, and this elastic and damping material layer is located in the pin hole of the connecting pin 8 on the connecting frame 2 and the pin hole of the connecting pin 8 on the two connecting members 7. Of course, the entire outer wall of the connecting pin 8 is coated with an elastic and damping material layer to enhance the vibration reduction and noise reduction effect. In order to reduce costs, the outer wall of the connecting pin 8 does not have to be completely coated with an elastic and damping material layer.

[0037] The elastic and damping material layer is formed by a polymer material with elastic and damping properties such as rubber or silicone and is coated on the outer wall of the connecting pin 8. The mechanical parameters of the three-series suspension damping device 5 can be determined by simulation calculation. The three-series suspension damping device 5 can also use an air spring with elastic damping characteristics, and its mechanical parameters are determined by simulation calculation. The mass m3 of the three-series suspension damping device 5 is 500kg-20000kg, the elastic coefficient k3 is 0.05kN / mm-50kN / mm, and the damping c3 is 0.005kNs / mm-10kNs / mm, which effectively reduces the vibration and noise generated between the connecting frame 2 and the car 1, and further improves the vibration reduction and noise reduction effect of the entire built-in suspension air-rail transportation system.

[0038] In the present application, the built-in suspension air-rail transportation system adopts a structure in which an upwardly inclined or downwardly inclined wheelset axle 9 and two or more primary suspension vibration reduction devices 3 are matched between the wheelset axle 9 and the frame 6, so that the built-in suspension air-rail bogie has a certain self-stabilization and self-steering function, which can reduce the setting of guide wheels or even eliminate the need for setting guide wheels, thereby reducing costs.

[0039] It should be understood that the above description of the specific embodiments of the present invention is only for illustrating the technical route and features of the present invention, and its purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, but the present invention is not limited to the above specific implementation methods. Any changes or modifications made within the scope of the claims of the present invention should be included in the protection scope of the present invention.

Claims

1. An internally suspended air-rail transportation system, comprising a carriage (1), a bogie, a drive device and a running wheel device, wherein the carriage (1) is rotatably connected to the bogie via a connecting frame (2), the bogie comprises a frame (6), and a suspension damping device (3) is arranged between the running wheel device and the frame (6), characterized in that: It also includes a secondary suspension vibration damping device (4), the secondary suspension vibration damping device (4) being arranged at the connection between the frame (6) and the connecting frame (2), the secondary suspension vibration damping device (4) being an air spring, the elastic coefficient k2 of which is 0.01 kN / mm-1 kN / mm, and the damping c2 of which is 0.01 kNs / mm-50 kNs / mm; The running wheel device comprises a running wheel pair arranged in pairs, the running wheel pair comprising two symmetrically arranged running wheels (10) and a wheel pair axle (9) connecting the two running wheels (10), the wheel pair axle (9) being connected to a drive device, the drive device being electrically connected to a vehicle controller in the carriage (1), at least one primary suspension damping device (3) being arranged between the wheel pair axle (9) and the frame (6), the primary suspension damping device (3) being an air spring, the elastic coefficient k1 of which is 0.02 kN / mm-1 kN / mm, and the damping c1 of which is 0.005 kNs / mm-10 kNs / mm; Two first-order suspension damping devices (3) are arranged between the wheelset axle (9) and the frame (6); the wheelset axle (9) is a bending shaft forming an axisymmetric structure; the bending shaft comprises two upwardly inclined or downwardly inclined straight shaft units symmetrically arranged along a vertical axis; the bending shaft is arc-shaped or V-shaped; the upwardly inclined straight shaft unit is a straight shaft unit that is inclined upward from the end away from the running wheel (10) to the end close to the running wheel (10); the downwardly inclined straight shaft unit is a straight shaft unit that is inclined downward from the end away from the running wheel (10) to the end close to the running wheel (10); the running wheel device also comprises a zero-order suspension damping device; the zero-order suspension damping device is an elastic damping layer covering the outside of the running wheel (10); the mass m0 of the zero-order suspension damping device is 10kg-500kg, and the elastic coefficient k0 is 0.1 kN / mm-5kN / mm, damping c0 is 0.001kNs / mm-2 kNs / mm; The top of the carriage (1) is connected to the connecting frame (2) via a connecting piece (7); the built-in suspension air-rail transportation system further comprises a three-series suspension vibration damping device (5), the three-series suspension vibration damping device (5) being arranged at the connection between the connecting frame (2) and the connecting piece (7); the connecting frame (2) is rotatably connected to the connecting piece (7) via a connecting pin (8); the three-series suspension vibration damping device (5) is an elastic and damping material layer at least partially formed on the outer wall of the connecting pin (8); the elastic and damping material layer is located in a pin hole on the connecting frame (2) through which the connecting pin (8) is penetrated and in a pin hole on the connecting piece (7) through which the connecting pin (8) is penetrated; the elastic coefficient k3 of the three-series suspension vibration damping device (5) is 0.05 kN / mm-50 kN / mm, and the damping c3 is 0.005 kNs / mm-10 kNs / mm; The frame (6) is provided with a mounting hole for the connecting frame (2) to pass through, and the secondary suspension vibration reduction device (4) is arranged in the mounting hole and sleeved on the outside of the connecting frame (2).

2. The built-in suspended air-rail transportation system according to claim 1, characterized in that: The mass m1 of the primary suspension vibration reduction device (3) is 50kg-3000kg, and the mass m2 of the secondary suspension vibration reduction device (4) is 10kg-1000kg.

3. The built-in suspended air-rail transportation system according to claim 1, characterized in that: The mass m3 of the three-system suspension vibration reduction device (5) is 500kg-20000kg.

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