Rail inspection vehicle with hollow frame

Abstract

The utility model relates to the technical field of railway detection, in particular to a rail inspection vehicle with a hollowed-out frame, comprising: a vehicle body comprising a front axle, a rear axle, wheels, a hollowed-out frame, a control box, a battery and a communication device, the wheels are mounted at two ends of the front axle, the wheels are mounted at two ends of the rear axle, and the hollowed-out frame is mounted on the vehicle body; the hollow frame is connected between the front axle and the rear axle, and the control box, the battery and the communication equipment are all mounted in the hollow frame; the detection devices are installed on the two sides of the vehicle body and connected with the hollowed-out vehicle frame. According to the inspection vehicle disclosed by the invention, through the design of the hollow frame, the control box, the battery and the communication equipment are intensively mounted in the hollow frame, so that a complete equipment mounting space is formed. According to the centralized installation mode of the equipment, the weight distribution of the whole vehicle is more uniform, the driving stability is improved, the weight of the vehicle body is reduced due to the structure of the hollow frame, and the manufacturing cost is reduced.

Description

Technical Field

[0001] This application relates to the field of railway inspection technology, and in particular to a rail inspection vehicle with a hollowed-out frame. Background Technology

[0002] The safety and integrity inspection of railway tracks is a crucial aspect of railway transportation system maintenance. Traditional track inspections rely primarily on manual patrols or large inspection vehicles. The former is inefficient and susceptible to human error, while the latter is costly and lacks flexibility. With technological advancements, small track inspection vehicles have gradually gained popularity due to their high mobility and ease of operation. However, existing small track inspection vehicles still have some shortcomings in their structural design, particularly regarding the installation and layout of onboard equipment.

[0003] In the existing technology, key components such as batteries, control boxes, and communication equipment on railway inspection vehicles are usually installed on the vehicle body using independent support structures. This design results in the equipment being installed separately, leading to uneven weight distribution of the entire vehicle and affecting driving stability. Moreover, the independent support structures increase the weight of the vehicle body and manufacturing costs, and make it inconvenient for unified management and maintenance of the equipment. Utility Model Content

[0004] This application aims to at least partially address one of the aforementioned technical problems in the prior art. To this end, embodiments of this application provide a railway inspection vehicle with a hollowed-out frame, resulting in a more uniform weight distribution, improved driving stability, and a reduced vehicle weight due to the hollowed-out frame structure, thus lowering manufacturing costs.

[0005] A railway inspection vehicle with a hollowed-out frame includes:

[0006] The vehicle body includes a front axle, a rear axle, wheels, a hollow frame, a control box, a battery, and communication equipment. The wheels are installed at both ends of the front axle and at both ends of the rear axle. The hollow frame connects the front axle and the rear axle. The control box, battery, and communication equipment are all installed inside the hollow frame.

[0007] The detection device is installed on both sides of the vehicle body and connected to the hollow frame.

[0008] In an optional or preferred embodiment, the hollowed-out frame includes:

[0009] Two bottom support beams are arranged in parallel and spaced apart between the front axle and the rear axle. The two support beams extend along the length of the vehicle body. The front end of each support beam is connected to the front axle and the rear end is connected to the rear axle.

[0010] A bottom crossbar is horizontally connected between two bottom support beams. Multiple bottom crossbars are provided, and each bottom crossbar is distributed along the length of the bottom support beam.

[0011] Two top support beams are arranged in parallel and spaced apart between the front axle and the rear axle. The two top support beams extend along the length of the vehicle body. The two top support beams correspond one-to-one with the two bottom support beams in the height direction of the vehicle body. The end of each top support beam is connected to the end of the corresponding bottom support beam.

[0012] A top crossbar is horizontally connected between two top support beams. Multiple top crossbars are provided, and each top crossbar is distributed along the length of the top support beam.

[0013] The control box, battery, and communication equipment are all installed between the recessed part of the bottom support beam and the convex part of the top support beam.

[0014] In an optional or preferred embodiment, the bottom support beam is recessed in the middle and bent upwards at both ends, the top support beam is convex in the middle and bent downwards at both ends.

[0015] In an optional or preferred embodiment, the hollow frame further includes a front crossbeam, and the front ends of the two bottom support beams are connected to the front axle via the front crossbeam.

[0016] In an optional or preferred embodiment, the front crossbeam is connected to the front axle via a rotating connector, which provides the front axle with rotational freedom along the wheel travel direction as an axis.

[0017] In an optional or preferred embodiment, the rotating connector includes a connecting shaft, a bearing, and a bushing. One end of the connecting shaft is fixed to the front crossbeam, the bearing is mounted on the connecting shaft, one end of the bushing is connected to the front axle, and the other end is fixedly connected to the outer ring of the bearing.

[0018] In an optional or preferred embodiment, the two sides of the bottom support beam are connected to the detection device via connecting rods, one end of the connecting rod being hinged to the bottom support beam and the other end being hinged to the detection device.

[0019] In an optional or preferred embodiment, three connecting rods are provided, two of which are arranged parallel to each other along the length of the vehicle body between the bottom support beam and the detection device, the two connecting rods together with the bottom support beam and the detection device to form a parallelogram structure, and the third connecting rod is connected to the diagonal of the two parallel connecting rods.

[0020] In an optional or preferred embodiment, the bottom support beam is a square tube structure.

[0021] In an optional or preferred embodiment, the top support beam is a circular tube structure.

[0022] Based on the above technical solutions, the embodiments of this application have at least the following beneficial effects: The inspection vehicle of the present invention uses a hollow frame design to centrally install the control box, battery and communication equipment inside the hollow frame. This centralized installation of equipment makes the weight distribution of the whole vehicle more uniform, improves driving stability, and the hollow frame structure reduces the weight of the vehicle body and reduces manufacturing costs. Attached Figure Description

[0023] The present application will be further described below with reference to the accompanying drawings and embodiments;

[0024] Figure 1 This is a schematic diagram of the structure of an embodiment of this application;

[0025] Figure 2 yes Figure 1 A structural diagram after removing the control box, battery, and communication equipment;

[0026] Figure 3 yes Figure 2 A schematic diagram of the structure after removing the detection devices on both sides. Detailed Implementation

[0027] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0028] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0031] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0033] The safety and integrity inspection of railway tracks is a crucial aspect of railway transportation system maintenance. Traditional track inspections rely primarily on manual patrols or large inspection vehicles. The former is inefficient and susceptible to human error, while the latter is costly and lacks flexibility. With technological advancements, small track inspection vehicles have gradually gained popularity due to their high mobility and ease of operation. However, existing small track inspection vehicles still have some shortcomings in their structural design, particularly regarding the installation and layout of onboard equipment.

[0034] In existing technologies, key components such as batteries, control boxes, and communication equipment on railway inspection vehicles are typically mounted directly on the vehicle body or use independent support structures. This design leads to the following problems: Firstly, the dispersed installation of equipment results in uneven weight distribution across the vehicle, affecting driving stability. Secondly, independent support structures increase vehicle weight and manufacturing costs, and hinder unified management and maintenance of the equipment. Furthermore, the lack of a reasonable centralized installation mechanism leads to complex cable connections between devices, making them prone to failure points and reducing the overall reliability of the vehicle.

[0035] Reference Figures 1 to 3 This application provides a rail inspection vehicle with a hollow frame, including a vehicle body 100 and a detection device 200. The vehicle body 100 includes a front axle 110, a rear axle 120, wheels 130, a hollow frame 140, a control box 150, a battery 160, and communication equipment 170. Wheels 130 are installed at both ends of the front axle 110 and the rear axle 120. The hollow frame 140 connects the front axle 110 and the rear axle 120. The control box 150, the battery 160, and the communication equipment 170 are all installed inside the hollow frame 140. The detection device 200 is installed on both sides of the vehicle body 100 and connected to the hollow frame 140.

[0036] The vehicle body 100 uses a front axle 110 and a rear axle 120 as the main load-bearing structures. Wheels 130 are installed at both ends of the front axle 110 and at both ends of the rear axle 120, forming a four-wheel support layout.

[0037] Reference Figure 3The hollow frame 140 includes two bottom support beams 141 and two top support beams 142. The bottom support beams 141 adopt a square tube structure and are arranged in parallel between the front axle 110 and the rear axle 120. The bottom support beams 141 extend along the length of the vehicle body 100. The middle part of the bottom support beams 141 is designed as a concave structure, and the two ends are bent upwards at an angle. The top support beams 142 adopt a round tube structure and are arranged in parallel between the front axle 110 and the rear axle 120. The top support beams 142 extend along the length of the vehicle body 100. The two top support beams 142 and the two bottom support beams 141 correspond one-to-one in the height direction of the vehicle body 100. The middle part is set as a convex structure, and the two ends are bent downwards at an angle and welded to the ends of the bottom support beams 141 to form a closed frame structure.

[0038] The recessed design of the bottom support beam 141 and the convex design of the top support beam 142 create an installation space inside the hollow frame 140. The control box 150, battery 160, and communication equipment 170 are all installed between the recessed part of the bottom support beam 141 and the convex part of the top support beam 142, forming a collision protection system using the structure of the hollow frame 140 itself.

[0039] In this application, two control boxes 150 are provided, one battery 160 and one communication device 170 are provided, so the four boxes are installed in a rectangular distribution inside the hollow frame 140.

[0040] During the inspection, the vehicle body 100 travels on the rails, and the detection devices 200 on both sides of the vehicle body 100 are used to inspect the rails. The detection devices 200 can be ultrasonic flaw detectors or visual inspection systems, which can be installed according to actual inspection needs.

[0041] The hollow frame 140 also includes bottom crossbars 143 and top crossbars 144. The bottom crossbars 143 are horizontally welded between the bottom support beams 141, and multiple bottom crossbars 143 are provided, distributed sequentially along the length of the vehicle body 100. Multiple top crossbars 144, distributed sequentially along the length of the vehicle body 100, are horizontally welded between the top support beams 142, thus forming a diamond-shaped mesh-like hollow structure in the hollow frame 140. This design significantly reduces material usage while ensuring the torsional strength of the frame.

[0042] The front end of the bottom support beam 141 is connected to the front axle 110 via the front crossbeam 145, and the front crossbeam 145 is welded and fixed to the front ends of the two bottom support beams 141.

[0043] In other embodiments, the front crossbeam 145 is movably connected to the front axle 110 via a rotating connector 180, which provides the front axle 110 with a rotational degree of freedom along the travel direction of the wheel 130. The rotating connector 180 allows the front axle 110 to rotate axially along the travel direction of the vehicle body 100. Thus, the hollow frame 140 is integrated with the rear axle 120, and the hollow frame 140 and the front axle 110 are rotatably connected, achieving both stability of the hollow frame 140 and flexibility of the front axle 110.

[0044] The rotating connector 180 includes a connecting shaft, a bearing, and a bushing. One end of the connecting shaft is fixed to the middle of the front crossbeam 145, the bearing is mounted on the connecting shaft, and one end of the bushing is fixedly connected to the middle of the front axle 110, while the other end is fixedly connected to the outer ring of the bearing. This design gives the front axle 110 a certain degree of rotational freedom, which helps the inspection vehicle to travel smoothly on the rails, especially when passing through curves, allowing it to better adapt to the curvature of the track.

[0045] Reference Figure 2 The bottom support beam 141 is connected to the detection device 200 on both sides by connecting rods 190. One end of the connecting rod 190 is hinged to the bottom support beam 141, and the other end is hinged to the detection device 200.

[0046] Furthermore, three connecting rods 190 are provided. Two of the connecting rods 190 are arranged parallel to each other along the length of the car body 100 between the bottom support beam 141 and the detection device 200. The two connecting rods 190, together with the bottom support beam 141 and the detection device 200, form a parallelogram structure. The third connecting rod 190 connects to the diagonal of the two parallel connecting rods 190. This parallelogram support structure has a certain buffering effect, effectively preventing vibrations on the rails from being directly transmitted to the detection equipment.

[0047] The inspection vehicle of this invention, through the design of a hollow frame 140, centrally houses the control box 150, battery 160, and communication equipment 170 within the hollow frame 140. This centralized installation method results in a more even weight distribution of the entire vehicle, improving driving stability. Furthermore, the structure of the hollow frame 140 reduces the weight of the vehicle body 100, lowering manufacturing costs. The hollow frame 140 design also provides excellent heat dissipation, contributing to the long-term stable operation of the equipment.

[0048] In practical applications, this type of rail inspection vehicle with a hollowed-out frame can be equipped with various inspection devices, such as track geometry parameter detection devices, rail surface defect detection devices, and track accessory detection devices. Operators can remotely control the inspection vehicle through the control system within the control box 150, enabling automatic inspection or fixed-point testing. Data collected during the inspection process can be transmitted in real-time to the monitoring center via communication equipment 170, achieving real-time monitoring and data analysis of the track condition.

[0049] It needs to be explained that the length direction of the vehicle body 100 in this application is... Figure 1 The front and back directions are shown.

[0050] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A railway inspection vehicle with a hollowed-out frame, characterized in that, include: The vehicle body includes a front axle, a rear axle, wheels, a hollow frame, a control box, a battery, and communication equipment. The wheels are installed at both ends of the front axle and at both ends of the rear axle. The hollow frame connects the front axle and the rear axle. The control box, battery, and communication equipment are all installed inside the hollow frame. The detection device is installed on both sides of the vehicle body and connected to the hollow frame.

2. The rail inspection vehicle with a hollowed-out frame according to claim 1, characterized in that: The hollowed-out frame includes: Two bottom support beams are arranged in parallel and spaced apart between the front axle and the rear axle. The two support beams extend along the length of the vehicle body. The front end of each support beam is connected to the front axle and the rear end is connected to the rear axle. A bottom crossbar is horizontally connected between two bottom support beams. Multiple bottom crossbars are provided, and each bottom crossbar is distributed along the length of the bottom support beam. Two top support beams are arranged in parallel and spaced apart between the front axle and the rear axle. The two top support beams extend along the length of the vehicle body. The two top support beams correspond one-to-one with the two bottom support beams in the height direction of the vehicle body. The end of each top support beam is connected to the end of the corresponding bottom support beam. A top crossbar is horizontally connected between two top support beams. Multiple top crossbars are provided, and each top crossbar is distributed along the length of the top support beam. The control box, battery, and communication equipment are all installed between the recessed part of the bottom support beam and the convex part of the top support beam.

3. The rail inspection vehicle with a hollowed-out frame according to claim 2, characterized in that: The bottom support beam is recessed in the middle and bent upwards at both ends. The top support beam is convex in the middle and bent downwards at both ends.

4. The rail inspection vehicle with a hollowed-out frame according to claim 2, characterized in that: The hollow frame also includes a front crossbeam, and the front ends of the two bottom support beams are connected to the front axle through the front crossbeam.

5. The rail inspection vehicle with a hollowed-out frame according to claim 4, characterized in that: The front crossbeam is connected to the front axle via a rotating connector, which provides the front axle with rotational freedom along the axis of the wheel travel direction.

6. The rail inspection vehicle with a hollowed-out frame according to claim 5, characterized in that: The rotating connector includes a connecting shaft, a bearing, and a bushing. One end of the connecting shaft is fixed to the front crossbeam, the bearing is mounted on the connecting shaft, one end of the bushing is connected to the front axle, and the other end is fixedly connected to the outer ring of the bearing.

7. The rail inspection vehicle with a hollowed-out frame according to claim 2, characterized in that: The bottom support beam is connected to the detection device on both sides by connecting rods. One end of the connecting rod is hinged to the bottom support beam, and the other end is hinged to the detection device.

8. The rail inspection vehicle with a hollowed-out frame according to claim 7, characterized in that: Three connecting rods are provided. Two of the connecting rods are arranged parallel to each other along the length of the vehicle body between the bottom support beam and the detection device. The two connecting rods, the bottom support beam, and the detection device together form a parallelogram structure. The third connecting rod is connected to the diagonal of the two parallel connecting rods.

9. The rail inspection vehicle with a hollowed-out frame according to any one of claims 2 to 8, characterized in that: The bottom support beam is a square tube structure.

10. The rail inspection vehicle with a hollowed-out frame according to any one of claims 2 to 8, characterized in that: The top support beam is a circular tube structure.

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