Sealed train body and vacuum pipeline train

Abstract

The invention relates to the technical field of vacuum pipeline traffic, and discloses a sealed train body and a vacuum pipeline train. The vehicle body comprises an inner cabin body, an outer cabin body and a shock absorber, the inner cabin body and the outer cabin body are connected through the shock absorber, the inner cabin body comprises an inner cabin skin and an inner cabin framework, the inner cabin skin is connected with the inner cabin framework, the outer cabin body comprises an outer cabin skin and an outer cabin framework, and the outer cabin skin is connected with the outer cabin framework. Therefore, by arranging the inner cabin body and the outer cabin body and adopting the redundant sealing design, after the outer cabin body is damaged, the independent inner cabin body can still keep enough strength and sealing performance, and the safety of passengers in the cabin can be effectively kept. Besides, the inner cabin body and the outer cabin body are connected through the shock absorber, shock absorption and buffering can be conducted between the inner cabin body and the outer cabin body, and safety is improved.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum tube transportation, and in particular to a sealed vehicle body and a vacuum tube train. Background Art

[0002] The high-speed railway trains currently in use run at normal temperature and pressure, and the main source of power loss during travel is air resistance. Air resistance increases with speed, and is proportional to the square of speed. As a result, further increasing the speed of the train requires a significant increase in power, which has a low cost-effectiveness and is difficult to achieve.

[0003] Therefore, in order to further increase the speed and reduce air resistance, the train is placed in a vacuum pipe. The vacuum pipe is evacuated to greatly reduce air resistance and energy consumption. At the same time, due to the high vacuum degree of the train running environment, more stringent requirements are placed on the sealing of high-speed trains. The air pressure in the pipe is as low as kilopascals, and the car body needs to maintain normal pressure. The car body structure withstands about 1 atmosphere of pressure. If a car body leak occurs, the passengers in the car will lose consciousness in a short time and cause casualties. Based on this, the sealing performance requirements of the vacuum tube train body are much higher than those of civil airliners.

[0004] As the train travels at speeds of up to 600km / h to 1000km / h, high requirements are placed on the lightweight design and structural strength of the car body. Currently, traditional train car bodies are mostly thin-walled structures made of aluminum alloy. Under current technical conditions, it is difficult to further improve the structural efficiency.

[0005] Specifically, the body structures of existing high-speed trains are mostly aluminum alloy welded bodies. The cross-section of the train is approximately rectangular, and the passenger cabins are mostly formed by extruded aluminum alloy welding. There are long welds along the length of the body structure. As the train repeatedly switches between normal pressure environment and vacuum pipeline, weld fatigue problems caused by changes in air pressure are prone to occur at the welds, eventually causing local cracks or leaks. Summary of the invention

[0006] The present invention provides a sealed car body and a vacuum tube train, which can solve the technical problems in the prior art.

[0007] The present invention provides a sealed vehicle body, wherein the vehicle body includes an inner cabin body, an outer cabin body and a shock absorber, wherein the inner cabin body and the outer cabin body are connected via the shock absorber, the inner cabin body includes an inner cabin skin and an inner cabin frame, wherein the inner cabin skin is connected to the inner cabin frame, and the outer cabin body includes an outer cabin skin and an outer cabin frame, wherein the outer cabin skin is connected to the outer cabin frame.

[0008] Preferably, the inner cabin body further comprises an inner cabin damper mounting bracket, which is connected to the inner cabin skin by co-curing.

[0009] Preferably, the outer cabin body further comprises an outer cabin shock absorber mounting bracket, which is connected to the outer cabin frame by a pre-embedded-co-curing method.

[0010] Preferably, the inner cabin skin is connected to the inner cabin skeleton by co-curing.

[0011] Preferably, the outer cabin skin is connected to the outer cabin frame by co-curing.

[0012] Preferably, the inner cabin skin, the inner cabin frame, the outer cabin skin and the outer cabin frame are made of carbon fiber epoxy composite material.

[0013] The present invention also provides a vacuum tube train, which includes the above-mentioned sealed car body.

[0014] Through the above technical solution, an inner and outer double-layer cabin can be set up, and a redundant sealing design can be adopted. After the outer cabin is damaged, the independent inner cabin still maintains sufficient strength and sealing, which can effectively keep the passengers in the cabin safe. In addition, the inner and outer cabins are connected by a shock absorber, which can reduce vibration and buffer between the inner and outer cabins to improve safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The included drawings are used to provide a further understanding of the embodiments of the present invention, which constitute a part of the specification, are used to illustrate the embodiments of the present invention, and together with the text description, explain the principles of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1A-1B A schematic diagram of a sealed vehicle body according to an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0017] It should be noted that, in the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0019] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0020] Figure 1A-1B A schematic diagram of a sealed vehicle body according to an embodiment of the present invention is shown.

[0021] like Figure 1A-1B As shown, an embodiment of the present invention provides a sealed vehicle body, wherein the vehicle body includes an inner cabin body, an outer cabin body and a shock absorber 5, the inner cabin body and the outer cabin body are connected via the shock absorber 5, the inner cabin body includes an inner cabin skin 3 and an inner cabin frame 4, the inner cabin skin 3 is connected to the inner cabin frame 4, the outer cabin body includes an outer cabin skin 1 and an outer cabin frame 2, the outer cabin skin 1 is connected to the outer cabin frame 2.

[0022] Through the above technical solution, an inner and outer double-layer cabin can be set up, and a redundant sealing design can be adopted. After the outer cabin is damaged, the independent inner cabin still maintains sufficient strength and sealing, which can effectively keep the passengers in the cabin safe. In addition, the inner and outer cabins are connected by a shock absorber, which can reduce vibration and buffer between the inner and outer cabins to improve safety.

[0023] According to one embodiment of the present invention, the inner cabin body further comprises an inner cabin damper mounting bracket 7, which is connected to the inner cabin skin 3 by co-curing.

[0024] According to an embodiment of the present invention, the outer cabin body further includes an outer cabin damper mounting bracket 6, which is connected to the outer cabin frame 2 by a pre-embedded-co-curing method.

[0025] Thereby, the inner cabin shock absorber mounting bracket can be integratedly connected with the inner cabin skin, and the outer cabin shock absorber mounting bracket can be integrated and reliably connected with the outer cabin frame, so as to more reliably support and set the shock absorber.

[0026] According to an embodiment of the present invention, the inner cabin skin 3 is connected 4 to the inner cabin skeleton by co-curing.

[0027] According to an embodiment of the present invention, the outer cabin skin 1 is connected to the outer cabin frame 2 by co-curing.

[0028] In this way, the inner cabin skin and the inner cabin frame can be integrated, the outer cabin skin and the outer cabin frame can be integrated, and the sealing reliability of the inner and outer cabin bodies can be improved.

[0029] According to an embodiment of the present invention, the inner cabin skin 3, the inner cabin frame 4, the outer cabin skin 1 and the outer cabin frame 2 are made of carbon fiber epoxy composite material.

[0030] The cabin skin is formed by laying carbon fiber epoxy composite materials, with a smooth aerodynamic shape and seamless surface, avoiding the weld fatigue problem caused by welding aluminum alloy profiles. In addition, the skin and cabin frame adopt co-curing technology, which reduces the use of mechanical connection methods such as rivets and screws, reduces the difficulty of assembly, and improves assembly processability and sealing reliability.

[0031] An embodiment of the present invention further provides a vacuum tube train, which includes the sealed car body described in the above embodiment.

[0032] It can be seen from the above embodiments that the sealed vehicle body described in the above embodiments of the present invention can effectively meet the requirements of lightweight vehicle body design, avoid the risk of weld fatigue damage, improve the sealing performance of the vehicle body structure, and ensure that the air pressure inside the vehicle body can remain stable and no gas leakage occurs when the vehicle body skin collides and rubs with the pipeline. The sealed vehicle body described in the present invention has at least the following advantages: large components are integrally formed, the number of parts is small, the total assembly workload is low, there is no weld seam as a whole, the aerodynamic shape is smooth, the structure is simple, the structural load-bearing efficiency is high, the fatigue resistance is excellent, and the sealing and noise reduction performance is good.

[0033] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0034] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0035] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sealed vehicle body, It is characterized in that The vehicle body includes an inner cabin body, an outer cabin body and a shock absorber, wherein the inner cabin body and the outer cabin body are connected via the shock absorber, the inner cabin body includes an inner cabin skin and an inner cabin frame, wherein the inner cabin skin is connected to the inner cabin frame, and the outer cabin body includes an outer cabin skin and an outer cabin frame, wherein the outer cabin skin is connected to the outer cabin frame.

2. The vehicle body according to claim 1, It is characterized in that The inner cabin body also includes an inner cabin shock absorber mounting bracket, which is connected to the inner cabin skin by co-curing.

3. The vehicle body according to claim 2, It is characterized in that The outer cabin body also includes an outer cabin damper mounting bracket, which is connected to the outer cabin frame by a pre-embedded-co-cured method.

4. The vehicle body according to claim 1, It is characterized in that The inner cabin skin is connected to the inner cabin frame by co-curing.

5. The vehicle body according to claim 4, It is characterized in that The outer cabin skin is connected to the outer cabin frame by co-curing.

6. The vehicle body according to any one of claims 1 to 5, It is characterized in that The inner cabin skin, the inner cabin frame, the outer cabin skin and the outer cabin frame are made of carbon fiber epoxy composite material.

7. A vacuum tube train, It is characterized in that A sealed vehicle body comprising any one of claims 1-6.

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