Straddle-type air-suspension running gear, track system and transportation system

Abstract

The present application relates to air suspension traffic technology field, provide a straddle type air suspension walking part, track system and traffic system, wherein the straddle type air suspension walking part contains frame, the frame can ride on the track body, the frame is provided with air cushion device towards the track body side, still contain gas taking device, the gas taking device one end with air cushion device intercommunication, the gas taking device other end to the track body side extends and can extend into the gas supply rail, the gas taking device far from the air cushion device one end is provided with gas taking port, the gas in the gas supply rail can enter the air cushion device through the gas taking port. The present application can solve the existing air suspension train carries the gas source in the vehicle body, on the one hand, the vehicle body quality is big, is not conducive to the lightweight of the basic structure, causes the overall construction cost to increase, on the other hand, the noise pollution is big, can cause negative influence to the problem of the riding comfort and the line selection flexibility.

Description

Technical Field

[0001] This invention relates to the field of air suspension transportation technology, and in particular to a straddle-type air suspension running gear, track system, and transportation system. Background Technology

[0002] Currently, in the field of urban and intercity rail transit with speeds below 200 km / h, wheel-rail transit using the adhesive method dominates. However, the vibration and noise pollution caused by wheel-rail transit is an unavoidable problem. This problem greatly limits the route selection flexibility of wheel-rail transit such as light rail, subway, suburban railway, and intercity railway, and further limits its application in urban areas, especially on the ground.

[0003] Non-adhesive rail transit systems offer advantages such as energy conservation, environmental friendliness, and adaptability to steep gradients. Currently, they mainly come in two forms: maglev and air suspension. Low-speed maglev utilizes EMS electromagnetic levitation technology, which has a complex suspension and guidance control system, high requirements for track stiffness, and high construction costs, with investments exceeding 250 million RMB per kilometer.

[0004] Compared to maglev systems, straddle-type air-levitation transportation systems can significantly reduce engineering investment, with construction costs expected to be comparable to those of wheel-rail transportation. They combine the performance and economic advantages of both maglev and wheel-rail systems, and are expected to gain a strong competitive advantage in urban and suburban rail transit at speeds up to 160 km / h, and even intercity rail transit at speeds up to 200 km / h. Existing air-levitation trains typically use a single large air cushion beneath the car body, housing a gas turbine and a jet turbine. The gas turbine serves as the air source for levitation, while the jet turbine acts as the driving force for acceleration. However, having two air sources increases the car body's mass, hindering the lightweighting of the underlying infrastructure, such as bridges, thus increasing the overall construction cost of the straddle-type air-levitation transportation system. Furthermore, the two air sources generate significant explosion noise, causing noise pollution, negatively impacting passenger comfort and limiting the flexibility of route selection. Summary of the Invention

[0005] The purpose of this invention is to address the problems of existing air-suspended trains, which mount the air source within the car body. On the one hand, the car body is heavy, which is not conducive to the lightweighting of the basic structure and leads to an increase in overall construction costs. On the other hand, the noise pollution is significant, which negatively impacts passenger comfort and route selection flexibility. This invention provides a straddle-type air-suspended running gear, track system, and transportation system.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A straddle-type air suspension traveling unit includes a frame that can straddle a track body. An air cushion device is provided on the side of the frame facing the track body. It also includes an air intake device. One end of the air intake device is connected to the air cushion device, and the other end of the air intake device extends toward the track body and can be inserted into the air supply rail. An air intake port is provided at the end of the air intake device away from the air cushion device, and gas in the air supply rail can enter the air cushion device through the air intake port.

[0008] The frame straddles the main track, meaning this solution uses a straddle-type track system.

[0009] The gas extraction device is used to extract gas from the gas supply rail as a gas source for the air cushion device. It can adopt various structures that can be inserted into the gas supply rail and extract gas, including but not limited to hollow tubular gas extraction structures and hollow plate-shaped gas extraction structures; there can be one or more gas extraction ports.

[0010] In this design, the air source for the straddle-type air suspension running gear is changed to the air supply rail of the main track. During operation, the air intake device is inserted into the air supply rail to draw gas from the rail as the air source for the air cushion device. This eliminates the need to install the air source for the air cushion device on the vehicle body or frame. On the one hand, this reduces the mass of the running gear and vehicle body, thereby achieving lightweighting of the substructure, such as bridges, and thus reducing the overall construction cost of the straddle-type air suspension transportation system. On the other hand, it also reduces the explosion noise generated by the air source in the running gear and vehicle body, thereby improving ride comfort and reducing the negative impact of explosion noise on the flexibility of route selection.

[0011] As a preferred embodiment of the present invention, the air cushion device includes a suspension air cushion and a guide air cushion, wherein the suspension air cushion is disposed facing the top surface of the track body; the guide air cushion is disposed facing the side wall of the track body, and the guide air cushion is distributed at least on both sides of the track body.

[0012] This solution divides the air cushion device into a suspension air cushion and a guide air cushion, which are used for vehicle suspension and vehicle guidance, respectively. Compared with the existing technology that uses a single large air cushion, this solution makes it easier to control the vehicle's suspension and guidance by controlling the gas pressure of the suspension air cushion and the guide air cushion separately, thereby avoiding mutual interference between the suspension and guidance functions and making it easier to achieve stable suspension.

[0013] As a preferred embodiment of the present invention, the number of suspended air cushions is greater than one, and / or the number of guide air cushions on one side is greater than one.

[0014] Compared to existing technologies that use a single large air cushion, this solution, when using multiple suspension air cushions to control the vehicle's levitation, can more precisely control the vehicle's levitation attitude by adjusting the air pressure of the suspension air cushions located at different positions on the vehicle, thus achieving a better levitation effect. Similarly, when using multiple guide air cushions to control the vehicle's guidance, this solution can more precisely control the vehicle's attitude by adjusting the air pressure of the guide air cushions located at different positions on the vehicle, thus achieving a better guidance effect.

[0015] As a preferred embodiment of the present invention, the frame is further provided with a suspended safety wheel and a guide safety wheel. The suspended safety wheel can roll on the top surface of the track body to support the frame, and the guide safety wheel can roll on the side wall of the track body to guide the frame.

[0016] This solution can provide support and guidance for the vehicle body when the suspension air cushion and guide air cushion are not in operation or are malfunctioning, thereby ensuring the safe operation of the vehicle body.

[0017] A straddle-type air suspension track system includes a track body, an air supply rail is provided along the entire length of the track body, and the air supply rail is connected to an air compressor; the side of the air supply rail facing the air intake device has an air vent groove, and flexible sealing strips are provided on the two opposite side walls of the air vent groove. The flexible sealing strips on both sides abut against each other to form a seal for the air supply rail. The air vent groove and the flexible sealing strips are both provided along the entire length of the air supply rail.

[0018] The air supply rail can be installed inside the rail or it can be a component independent of the rail, as long as it is installed along the entire length of the rail; the flexible sealing strip can be made of various materials, including but not limited to rubber, silicone rubber or polyurethane.

[0019] The straddle-type air suspension track system of this solution is equipped with an air supply rail connected to an air compressor along the entire length of the track body. It can cooperate with the air intake device in the train running section to supply air to the train's air cushion device. When the train is in operation, the air intake device is passed through the joint of the flexible sealing strips on both sides to connect the air intake port with the inside of the air supply rail. It can then draw gas from the air supply rail as the air source for the air cushion device, thereby eliminating the need to install a corresponding air source in the running section or car body, achieving the purpose of reducing train weight and noise.

[0020] Furthermore, when the air intake device moves along the ventilation groove under the drive of the traveling part, the flexible sealing strip near the air intake device will deform accordingly to avoid obstructing the movement of the air intake device, while the flexible sealing strips in other positions will remain sealed. This ensures good sealing of the air supply rail, thereby improving the working efficiency of the air supply rail, and avoids obstructing the movement of the air intake device, thereby improving the operating efficiency of the traveling part.

[0021] As a preferred embodiment of the present invention, a number of movable partitions are provided in the air supply rail. The movable partitions are distributed at intervals along the length of the main body of the rail to divide the air supply rail into a number of sub-chambers. The movable partitions can be opened or closed to allow adjacent sub-chambers to be connected or separated.

[0022] It is important to note that the movable partition in the open state should be designed to avoid interfering with the gas intake device.

[0023] This solution divides the air supply rail into several smaller sub-chambers using movable partitions. When the vehicle body runs along the main track, the air compressor only needs to supply high-pressure gas into the sub-chambers near the vehicle body. This reduces the length of the air supply rail that needs to maintain a high-pressure environment, lowers the workload of the air compressor, makes it easier to select the right air compressor, and reduces the energy consumption of this solution.

[0024] As a preferred embodiment of the present invention, the movable partition is oscillatingly connected to the side of the air supply rail away from the air intake device, and the axis of the oscillating connection is along the width direction of the rail body.

[0025] This solution uses a movable baffle that swings and connects to the side of the gas supply rail away from the gas intake device. When the gas intake device needs to pass through the movable baffle, the movable baffle can be rotated as close as possible to the inner wall of the gas supply rail, thereby minimizing interference with the gas intake device.

[0026] As a preferred embodiment of the present invention, the flexible sealing strip has an included angle α with the vertical plane, where α > 0°.

[0027] This solution sets the flexible sealing strip at an angle relative to the vertical plane. Compared to setting the flexible sealing strip parallel to the vertical plane, this solution can achieve a larger flexible sealing strip size when vertical installation space is limited, thereby increasing the contact area of ​​the flexible sealing strips on both sides and thus achieving a better sealing effect.

[0028] A straddle-type air-suspended transportation system includes a vehicle body and a track system. The vehicle body includes a straddle-type air-suspended running gear as described in this invention. The track system adopts a straddle-type air-suspended track system as described in this invention. An air intake device passes through the joint of the flexible sealing strips on both sides and communicates with the air supply rail.

[0029] The straddle-type air-suspended transportation system of this invention adopts the straddle-type air-suspended running gear and straddle-type air-suspended track system. During operation, the air cushion device can maintain constant communication with the air supply rail through the air intake device, thereby receiving high-pressure gas discharged from the air compressor to maintain the suspension of the vehicle body. Therefore, on the one hand, there is no need to set the air source of the air cushion device on the running gear or vehicle body, thereby reducing the weight of the running gear and vehicle body and the noise during operation; on the other hand, the ventilation groove on the air supply rail is sealed with a flexible sealing strip, which can not only avoid obstructing the operation of the air intake device through deformation, but also restore the seal to the air supply rail after the air intake device passes, thereby reducing gas leakage from the air supply rail and improving the operating efficiency of the air supply rail.

[0030] As a preferred embodiment of the present invention, a linear motor induction plate is also provided along the entire length of the track body, and a linear motor is provided at a corresponding position on the vehicle body. The linear motor can interact with the linear motor induction plate to move the vehicle body along the length of the track body.

[0031] The power supply for linear motors can refer to the power supply structure of existing rail transit trains, such as using a combination of current collector shoes and power supply rails.

[0032] This solution uses a combination of linear motors and linear motor induction plates to drive the movement of the vehicle body, thereby eliminating the jet turbines installed on the vehicle body in existing straddle-type air suspension transportation systems. This further reduces the vehicle body's mass and the resulting explosion noise, and is more conducive to the lightweighting of the substructure. Consequently, it can further reduce the overall construction cost of this solution, as well as improve passenger comfort and route selection flexibility.

[0033] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. The straddle-type air suspension running gear of the present invention can draw air from the air supply rail through an air intake device, eliminating the need to install an air cushion device on the vehicle body or frame. On the one hand, it can reduce the mass of the running gear and vehicle body, which is beneficial to the lightweighting of the substructure, such as bridges, thereby reducing the overall construction cost of the straddle-type air suspension transportation system. On the other hand, it can also reduce the explosion noise generated by the air source in the running gear and vehicle body, thereby improving the riding comfort and reducing the negative impact of explosion noise on the flexibility of route selection.

[0034] 2. The straddle-type air suspension track system of the present invention not only ensures the good sealing performance of the air supply rail, thereby improving the working efficiency of the air supply rail, but also avoids obstructing the movement of the air intake device, thereby improving the operating efficiency of the running part.

[0035] 3. The straddle-type air suspension transportation system of the present invention adopts the straddle-type air suspension running gear and straddle-type air suspension track system of the present invention, which can not only reduce the weight and noise of the vehicle body, but also reduce gas leakage of the air supply rail and the obstruction of the air supply rail to the movement of the running gear, thus having good operating efficiency. Attached Figure Description

[0036] Figure 1 This is a schematic cross-sectional view of the straddle-type air-suspended transportation system of the present invention at the section where the air cushion device is located. Figure 1 ; Figure 2 This is a cross-sectional view of the linear motor section of a straddle-type air suspension transportation system according to the present invention. Figure 3 This is a schematic cross-sectional view of the straddle-type air-suspended transportation system of the present invention at the section where the air cushion device is located. Figure 2 ; Figure 4 This is a three-dimensional structural diagram of a straddle-type air suspension running gear according to the present invention; Figure 5 This is a three-dimensional structural diagram of the air pressure control system; Figure 6 This is a simplified side view of the straddle-type air suspension running gear of the present invention; Figure 7 This is a schematic diagram of the cross-sectional structure of the main body of a straddle-type air suspension track system according to the present invention; Figure 8 This is a schematic diagram of the cross-sectional structure of the part of the gas supply rail that is not in contact with the gas intake device; Figure 9 This is a schematic diagram of the cross-sectional structure of the contact area between the gas supply rail and the gas intake device. Figure 10 This is a side view of the air supply rail structure. Figure 1 ; Figure 11 This is a side view of the air supply rail structure. Figure 2 ; Figure 12 This is a diagram illustrating the working status of the movable partition. Figure 1 ; Figure 13 This is a diagram illustrating the working status of the movable partition. Figure 2 ; Icons: 1-Car body; 11-Frame; 2-Rail body; 3-Air supply rail; 4-Air compressor; 5-Power supply rail; 101-Guide air cushion pipeline; 102-Guide air cushion; 103-Suspension air cushion pipeline; 104-Suspension air cushion; 105-Current collector shoe; 106-Pneumatic control system; 107-Air intake device; 108-Linear motor; 109-Suspension safety wheel; 110-Guide safety wheel; 111-Traction rod; 112-Vertical vibration damper; 113-Air spring; 114-Lateral stop; 115-Anti-roll decoupling mechanism; 116-Hanging rod; 117-Air universal joint; 201-Positioning mounting base; 202-Beam; 203-Air supply rail mounting groove; 204-Linear motor induction plate; 205-Weight reduction groove; 302-Flexible sealing strip; 304-Air inlet; 305-Modible partition. Detailed Implementation

[0037] The present invention will now be described in detail with reference to the accompanying drawings.

[0038] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0039] In the following description of specific embodiments, terms such as "up," "down," "left," "right," "center," "inner," and "outer," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the device / apparatus is typically placed during use. These terms are merely for ease of description or simplification of the description in the specific embodiments, to facilitate quick understanding of the solution by those skilled in the art, and do not indicate or imply that a particular device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on the present invention.

[0040] The terms "horizontal," "vertical," etc., do not imply that the corresponding device / component / element must be absolutely horizontal, vertical, or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a specific orientation such as "horizontal" or "vertical," can have an error / deviation of ±10% relative to that orientation, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0041] The terms “set up,” “install,” “connect,” and “link” should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections. They can refer to common connection methods in the field, such as welding, riveting, bolting, and threaded connections. They can refer to direct connections or indirect connections through an intermediate medium. They can refer to the internal connection between two components.

[0042] Example 1 like Figures 1 to 6 As shown, a straddle-type air suspension traveling part of this embodiment includes a frame 11, which can straddle the track body 2. An air cushion device is provided on the side of the frame 11 facing the track body 2. It also includes an air intake device 107. One end of the air intake device 107 is connected to the air cushion device, and the other end of the air intake device 107 extends towards the track body 2 and can be inserted into the air supply rail 3. An air intake port is provided at the end of the air intake device 107 away from the air cushion device, and the gas in the air supply rail 3 can enter the air cushion device through the air intake port.

[0043] Specifically, such as Figures 1 to 3 As shown, this embodiment uses a straddle-type monorail track structure. On one hand, this allows for convenient use of the bottom surface and side walls of the inverted U-shaped running section in the straddle structure to arrange the air cushion device. On the other hand, it also leverages the advantages of the straddle track system, such as small space occupation, smooth operation, and low construction cost. When installed on the car body 1, the number of running sections in each car body 1 is greater than or equal to two. Corresponding to the shape of the running sections, such as... Figures 1 to 4 As shown, the frame 11 in this embodiment is generally U-shaped and divided into left and right parts. An anti-roll decoupling mechanism 115 is connected between the left and right parts to reduce the mutual influence of vibration between the left and right parts, realize the decoupling of the left and right parts, and enhance the anti-roll capability.

[0044] Furthermore, the air cushion device includes a suspending air cushion 104 and a guiding air cushion 102. The suspending air cushion 104 is disposed facing the top surface of the track body 2; the guiding air cushion 102 is disposed facing the side wall of the track body 2, and the guiding air cushion 102 is distributed at least on both sides of the track body 2. Specifically, as shown... Figures 1 to 3 As shown, the suspension air cushion 104 is installed on one side of the frame 11 facing the upper surface of the beam 202, and the guide air cushion 102 is installed on the two sides of the frame 11 facing the two side walls of the beam 202 respectively.

[0045] Furthermore, the number of suspended air cushions 104 is greater than one, and / or the number of guide air cushions 102 on one side is greater than one. Specifically, in this embodiment, each frame 11 is provided with two sets of suspended air cushions 104 evenly spaced along the longitudinal direction of the track body 2, and each set of suspended air cushions 104 includes two suspended air cushions 104 arranged laterally spaced along the track body 2; two guide air cushions 102 are evenly spaced along the longitudinal direction of the track body 2 on one side of each frame 11; correspondingly, this embodiment also includes a pneumatic control system 106, each suspended air cushion 104 is connected to the pneumatic control system 106 through an independent suspended air cushion pipeline 103, each guide air cushion 102 is connected to the pneumatic control system 106 through an independent guide air cushion pipeline 101, and the air intake device 107 is connected to the pneumatic control system 106 through an air guide universal joint 117. It can be a combination of a universal joint and a flexible air hose; when the air intake device 107 obtains high-pressure gas from the air supply rail 3 and inputs it into the air pressure control system 106, the air pressure control system 106 can input high-pressure gas into each suspension air cushion 104 and each guide air cushion 102 through each suspension air cushion pipe 103 and each guide air cushion pipe 101, thereby forming an air film between the suspension air cushion 104 and the top surface of the beam 202, and between the guide air cushion 102 and the side wall of the beam 202, to achieve the suspension and guidance of the vehicle body 1 respectively; at the same time, the air pressure control system 106 can also control the air pressure of each suspension air cushion 104 and each guide air cushion 102 through each suspension air cushion pipe 103 and each guide air cushion pipe 101, thereby precisely adjusting the suspension attitude of the vehicle body 1.

[0046] Furthermore, such as Figure 4 and Figure 5 As shown, the air pressure control system 106 is connected to the frame 11 via four rods 116, two on each side of the left and right sides. The hinge points of the rods 116 are ball joints, which reduces the impact of frame 11 vibration on the pressure control system and the air intake device 107 below it, ensuring that the air intake device 107 can take in air stably. In this embodiment, the air guide universal joint 117 can deflect at a certain angle in three mutually perpendicular directions, which ensures that the air intake device 107 can still be connected to the air pressure control system 106 when it deflects, avoiding the sudden interruption of the air path between the air cushion device and the air supply rail 3, making the air supply to the air cushion device more reliable.

[0047] Furthermore, the frame 11 is also equipped with a suspension safety wheel 109 and a guide safety wheel 110. The suspension safety wheel 109 can roll on the top surface of the track body 2 to support the frame 11, and the guide safety wheel 110 can roll on the side wall of the track body 2 to guide the frame 11. Specifically, in this embodiment, both the suspension safety wheel 109 and the guide safety wheel 110 adopt a retractable structure. When the suspension air cushion 104 and the guide safety wheel 110 are working normally, they are retracted to reduce the resistance of the vehicle body 1 and thus reduce the power consumption of the entire straddle-type air suspension transportation system. When the suspension air cushion 104 and the guide air cushion 102 are in a non-working state or are malfunctioning, they are lowered and come into contact with the track body 2 to ensure the safe operation of the vehicle body 1.

[0048] Furthermore, such as Figure 4 As shown, a traction rod 111 for connecting to the vehicle body 1 and a lateral stop 114 for limiting the vehicle body 1 are also provided on the top surface of the frame 11 to ensure that the traction force can be transmitted from the running gear to the vehicle body 1 and to prevent the vehicle body 1 from undergoing lateral displacement exceeding the normal degrees of freedom when passing through a small curve radius track; and as Figure 4 As shown, the traction rod 111 is arranged obliquely symmetrically, which can better adapt to the relative rotation of the car body 1 and the frame 11; the end of the traction rod 111 adopts a rubber ball joint. At the same time, the top surface of the frame 11 is also equipped with a vertical shock absorber 112 and an air spring 113, which can reduce the vibration transmitted from the running gear to the car body 1 and improve the ride comfort.

[0049] Example 2 like Figures 1 to 3 ,as well as Figures 6 to 13 As shown, a straddle-type air suspension track system of this embodiment includes a track body 2, and an air supply rail 3 is arranged along the entire length of the track body 2. The air supply rail 3 is connected to an air compressor 4. The side of the air supply rail 3 facing the air intake device 107 has an air vent groove. Flexible sealing strips 302 are provided on the two opposite side walls of the air vent groove. The flexible sealing strips 302 on both sides abut against each other to form a seal for the air supply rail 3. The air vent groove and the flexible sealing strips 302 are arranged along the entire length of the air supply rail 3.

[0050] Specifically, the top surface of the track body 2 has an air supply rail mounting groove 203 for mounting the air supply rail 3, and the bottom surface of the track body 2 has an inverted U-shaped weight reduction groove 205 for achieving lightweighting of the beam 202, so that the cross-sectional shape of the beam 202 is approximately H-shaped; a positioning mounting seat 201 is provided on the bottom surface of the air supply rail mounting groove 203, and a positioning mounting hole is provided at the corresponding position of the air supply rail 3, so that the air supply rail 3 can be accurately positioned relative to the beam 202; the air supply rail 3 is specifically a rectangular cross-section box, with a ventilation groove opened in the middle of its top surface, and a flexible sealing strip 302 is provided on the two side walls of the ventilation groove along the transverse direction of the track body 2; Furthermore, the flexible sealing strip 302 has an included angle α with the vertical plane parallel to the length direction of the track body 2, where α > 0°. The flexible sealing strip 302 specifically adopts a one-way rubber sealing structure; the bottom surface of the air supply rail 3 is provided with an air inlet 304, which is connected to the air compressor 4 through an air inlet pipe, thereby being able to receive high-pressure gas discharged from the air compressor 4; Furthermore, the gas supply rail 3 is provided with several movable partitions 305. The movable partitions 305 are distributed at intervals along the length of the main body 2 of the rail, thereby dividing the gas supply rail 3 into several sub-chambers. The movable partitions 305 can be opened or closed, thereby allowing two adjacent sub-chambers to be connected or separated. The gas intake device 107 can pass through the movable partitions 305 in the open state.

[0051] Furthermore, the movable partition 305 is oscillatingly connected to the side of the air supply rail 3 away from the air intake device 107, with the axis of the oscillating connection along the width direction of the rail body 2. Specifically, each sub-chamber has an independent air inlet 304 at its bottom, which is connected to a separate air compressor 4, thereby allowing the air pressure in each sub-chamber to be controlled by different air compressors 4; and since the air intake device 107 and the ventilation chute are both located at the top of the air supply rail 3, the movable partition 305 is oscillatingly connected to the bottom surface of the air supply rail 3.

[0052] In this embodiment, the straddle-type air-suspended track system can maintain high pressure only inside the sub-chamber near the vehicle body 1 during operation, without needing to maintain high pressure throughout the entire air supply track 3; Figure 12 and Figure 13 For example, Figure 12 and Figure 13The air supply rail 3 is divided into four sub-chambers by three movable partitions 305. From left to right, the three movable partitions 305 are partition I, partition II, and partition III. The four sub-chambers, from left to right, are sub-chamber A, sub-chamber B, sub-chamber C, and sub-chamber D. When the air intake device 107 travels to sub-chamber B along with the traveling unit, partitions I, II, and III all rise, and the air compressor 4 corresponding to sub-chamber B operates, maintaining high pressure in sub-chamber B to supply air to the air intake device 107. The air compressor 4 corresponding to sub-chamber C also operates, pre-controlling the air pressure in sub-chamber C to be equal to that in sub-chamber B. When the air intake device 107 needs to move from sub-chamber B to sub-chamber C, movable partition 305 II is lowered to maintain the connection between sub-chambers B and C and to avoid interference with the air intake device 107. After the air intake device 107 passes through movable partition 305 II, movable partition 305 II is raised again. When the air intake device 107 needs to move to the location of the next sub-chamber, the same operation is performed, that is, only the sub-chamber below the air intake device 107 and the sub-chamber in front of the air intake device 107 are opened.

[0053] It should be noted that the working mode of the movable partition 305 and the sub-chamber in this embodiment is only one working mode for energy saving purposes. If the actual needs are different, such as needing to provide a higher safety margin, the number of sub-chambers working at the same time can be increased. For example, the sub-chamber below the gas intake device 107 and multiple sub-chambers in front of the gas intake device 107 can be opened at the same time.

[0054] Example 3 like Figures 1 to 3 As shown, this embodiment of a straddle-type air suspension transportation system includes a vehicle body 1 and a track system. The vehicle body 1 includes a straddle-type air suspension running section as described in Embodiment 1. The track system adopts a straddle-type air suspension track system as described in Embodiment 2. The air intake device 107 passes through the joint of the flexible sealing strips 302 on both sides and communicates with the air supply rail 3.

[0055] Furthermore, a linear motor induction plate 204 is also installed along the entire length of the track body 2, and a linear motor 108 is installed at a corresponding position on the frame 11. The linear motor 108 can interact with the linear motor induction plate 204, thereby causing the frame 11 to drive the car body 1 to move along the length of the track body 2. Specifically, the linear motor induction plate 204 is installed on both sides of the top surface of the beam 202 along the transverse direction of the track body 2, and the linear motor 108 is installed at the corresponding positions on both sides of the running part of the car body 1 along the transverse direction of the track body 2. In order to power the linear motor 108, a power supply rail 5 is also provided at the bottom of both sides of the beam 202, and a current collector shoe 105 is provided at the corresponding position of the running part. The current collector shoe 105 and the power supply rail 5 can maintain contact when the car body 1 runs along the track body 2, thereby realizing the power supply of the linear motor 108.

[0056] When the train needs to levitate relative to the main track 2, the air intake device 107 of the train is inserted into the air supply rail 3 through the joint of the flexible sealing strips 302 on both sides, and the air compressor 4 is used to keep high-pressure gas flowing into the air supply rail 3. The high-pressure gas can then enter the air pressure control system 106 through the air intake device 107, and then be distributed to the levitation air cushion 104 and the guide air cushion 102 respectively, so as to realize the levitation and guidance of the car body 1. When the train needs to run along the main track 2, the linear motor 108 is started, and the interaction between the linear motor 108 and the linear motor induction plate 204 can make the train move along the main track 2.

[0057] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A straddle-type air-suspended traveling unit, comprising a frame (11) capable of straddling a track body (2), wherein an air cushion device is provided on the side of the frame (11) facing the track body (2), characterized in that, It also includes an air intake device (107), one end of which is connected to the air cushion device, and the other end of which extends toward the track body (2) and can be inserted into the air supply rail (3). An air intake port is provided at the end of the air intake device (107) away from the air cushion device, and the gas in the air supply rail (3) can enter the air cushion device through the air intake port. The air cushion device includes a suspending air cushion (104) and a guiding air cushion (102). The suspending air cushion (104) is disposed facing the top surface of the track body (2), and the number of suspending air cushions (104) is greater than one. The guiding air cushion (102) is disposed facing the side wall of the track body (2), and the guiding air cushions (102) are distributed at least on both sides of the track body (2), with the number of guiding air cushions (102) on each side being greater than one. Each suspending air cushion (104) is connected by an independent suspending air cushion tube. The path (103) is connected to the air pressure control system (106), and each of the guide air cushions (102) is connected to the air pressure control system (106) through an independent guide air cushion pipeline (101); the air intake device (107) is connected to the air pressure control system (106) through the air guide universal joint (117), and the air pressure control system (106) is connected to the frame (11) through four hangers (116) on the left and right sides, with two hangers (116) on each side, and the hinge point of the hangers (116) is a ball joint.

2. The straddle-type air-suspended traveling unit according to claim 1, characterized in that, The frame (11) is also provided with a suspended safety wheel (109) and a guide safety wheel (110). The suspended safety wheel (109) can roll on the top surface of the track body (2) to support the frame (11), and the guide safety wheel (110) can roll on the side wall of the track body (2) to guide the frame (11).

3. A straddle-type air-suspended track system, comprising a track body (2), characterized in that, The straddle-type air suspension running part according to any one of claims 1 to 2 is provided with an air supply rail (3) along the entire length of the track body (2), the air supply rail (3) being connected to an air compressor (4); the air supply rail (3) has a ventilation groove on the side facing the air intake device (107) of the straddle-type air suspension running part, and flexible sealing strips (302) are provided on the two opposite side walls of the ventilation groove, the flexible sealing strips (302) on both sides abutting against each other to form a seal of the air supply rail (3), and the ventilation groove and the flexible sealing strips (302) are both provided along the entire length of the air supply rail (3); The air supply rail (3) is provided with several movable partitions (305). The movable partitions (305) are distributed at intervals along the length of the rail body (2) to divide the air supply rail (3) into several sub-chambers. The movable partitions (305) can be opened or closed to allow two adjacent sub-chambers to communicate or be separated from each other. Each sub-chamber has an independent air inlet (304) at the bottom, which is connected to a separate air compressor (4).

4. A straddle-type air-suspended track system according to claim 3, characterized in that, The movable partition (305) is oscillatingly connected to the side of the gas supply rail (3) away from the gas intake device (107), and the axis of the oscillating connection is along the width direction of the rail body (2).

5. A straddle-type air-suspended track system according to any one of claims 3 to 4, characterized in that, The flexible sealing strip (302) has an included angle α with the vertical plane, where α > 0°.

6. A straddle-type air-suspended transportation system, comprising a vehicle body (1) and a track system, characterized in that, The vehicle body (1) includes a straddle-type air suspension running section as described in any one of claims 1 to 2; the track system adopts a straddle-type air suspension track system as described in any one of claims 3 to 5; the air intake device (107) passes through the joint of the flexible sealing strips (302) on both sides and communicates with the air supply rail (3).

7. A straddle-type air-suspended transportation system according to claim 6, characterized in that, A linear motor induction plate (204) is also provided along the entire length of the track body (2), and a linear motor (108) is provided at the corresponding position on the frame (11). The linear motor (108) can interact with the linear motor induction plate (204) so ​​that the frame (11) drives the vehicle body (1) to move along the length direction of the track body (2).

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