Anti-falling mechanism of railway vehicle air source device

Abstract

The utility model provides a kind of railway vehicle air source device anti-falling mechanism, comprising: crossbeam, stringer, protective pole, branch block, vibration sensor, air source device mounting frame, rubber strip, riser, limit plate, fixed screw rod;Two crossbeams are provided, and two ends of two crossbeams are welded with two stringers, the outer wall of two stringers is fixedly connected with two branch blocks, the top of two branch blocks is fixedly connected with vibration sensor, and the outer wall of two stringers is fixedly connected with air source device mounting frame by bolt;The utility model is improved through railway vehicle air source device anti-falling mechanism, with can real-time monitoring connection, can achieve real-time monitoring, timely discovery, so that the advantages of fast maintenance can be carried out, to effectively solve the problems and deficiencies in existing device.

Description

Technical Field

[0001] This utility model relates to the field of railway transportation technology, and more specifically, to a mechanism for preventing the fall off of a railway vehicle air source device. Background Technology

[0002] Railway transport, or simply rail transport, refers to a land-based mode of transportation that uses fixed steel tracks (i.e., railways) to guide trains. Its core characteristic is rail guidance; vehicles (locomotives and carriages) travel on specially laid tracks, typically powered by locomotives, transporting passengers and goods. The air supply system for railway vehicles, often called the air supply for the air braking system, is a collective term for a set of key equipment on railway vehicles used to generate, purify, store, and supply compressed air. Simply put, it's the train's "compressed air manufacturing plant," providing continuous, clean, dry, and stable-pressure compressed air for the entire train's air braking system and other air-using equipment.

[0003] Improving the anti-detachment performance of existing railway vehicle ventilation device installation mechanisms can greatly enhance safety. A loosening detection device can be installed to detect any loosening promptly, facilitating quick maintenance by staff. Furthermore, it can provide protection for the front and rear of the ventilation device, further enhancing safety.

[0004] In view of this, this paper studies and improves the existing problems, and provides a mechanism to prevent the fall off of the air source device of railway vehicles. The aim of this technology is to solve the problem and improve its practical value. Utility Model Content

[0005] The purpose of this utility model is to provide a mechanism to prevent the detachment of a railway vehicle air source device, so as to solve the problem and shortcomings of the existing railway vehicle air source device installation mechanism mentioned in the background art, which is prone to loosening at the connection point due to long-term operation, but cannot effectively detect the loosening of the connection position.

[0006] To achieve the above objectives, this utility model provides a mechanism for preventing the fall off of a railway vehicle air supply device, which is accomplished by the following specific technical means:

[0007] A mechanism for preventing the fall off of a ventilation device in railway vehicles includes: a crossbeam, longitudinal beams, a protective bar, support blocks, a vibration sensor, a ventilation device mounting frame, rubber strips, vertical plates, a limiting plate, and fixing screws; two crossbeams are provided, and two longitudinal beams are welded to both ends of the two crossbeams; two support blocks are fixedly connected to the outer walls of the two longitudinal beams; a vibration sensor is fixedly connected to the top of each of the two support blocks; and a ventilation device mounting frame is fixedly connected to the outer walls of the two longitudinal beams by bolts.

[0008] As a further optimization of the technical solution, in the anti-drop mechanism for an air source device of a railway vehicle of the utility model, rubber strips are fixedly connected to the tops of both of the two cross beams.

[0009] As a further optimization of the technical solution, in the anti-drop mechanism for an air source device of a railway vehicle of the utility model, vertical plates are fixedly connected to the bottoms of both of the two longitudinal beams, a limiting plate is slidably clamped to the inner walls of the two vertical plates, and the limiting plate has a concave Chinese character structure.

[0010] As a further optimization of the technical solution, in the anti-drop mechanism for an air source device of a railway vehicle of the utility model, fixing screws are threadedly connected to the inner walls of both of the two vertical plates, and the outer walls of the two fixing screws are in tight abutment against the outer wall of the limiting plate.

[0011] As a further optimization of the technical solution, in the anti-drop mechanism for an air source device of a railway vehicle of the utility model, guard bars are fixedly connected to both sides of the outer walls of the two vertical plates.

[0012] Due to the application of the above technical solutions, the utility model has the following advantages compared with the prior art:

[0013] 1. The arrangement of the cross beams, the longitudinal beams, support blocks, a vibration sensor and an air source device mounting bracket of the utility model can continuously monitor vibration signals during use. When the connection part becomes loose, the vibration amplitude in a specific frequency band will increase significantly. By comparing with the "fingerprint" frequency spectrum in a normal state, when the device is in an abnormal state, staff can find out the abnormality in time and carry out maintenance and treatment quickly, thereby avoiding the occurrence of the falling-off phenomenon from the root.

[0014] 2. The utility model has the advantage of being capable of monitoring the connection part in real time through the improvement of the anti-drop mechanism for an air source device of a railway vehicle, realizing real-time monitoring and timely discovery so as to facilitate quick maintenance, thereby effectively solving the problems and deficiencies occurring in existing devices. Description of Drawings

[0015] The accompanying drawings, which constitute a part of this application, are provided to further understand the utility model. The schematic embodiments of the utility model and the description thereof are used to explain the utility model and do not constitute an undue limitation to the utility model. In the accompanying drawings:

[0016] Figure 1 is the structural schematic diagram of the utility model;

[0017] Figure 2 is the structural schematic diagram of the cross beams, the longitudinal beams and the support blocks of the utility model;

[0018] Figure 3 is the structural schematic diagram of the cross beams, the longitudinal beams and the air source device mounting bracket of the utility model;

[0019] Figure 4 This is a schematic diagram of the vertical plate, limiting plate, and fixing screw structure of this utility model.

[0020] In the diagram: 1. Horizontal beam; 2. Longitudinal beam; 3. Protective bar; 4. Support block; 5. Vibration sensor; 6. Air source device mounting bracket; 7. Rubber strip; 8. Vertical plate; 9. Limiting plate; 10. Fixing screw. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are some embodiments of the present utility model, but not all embodiments.

[0022] It should be noted that, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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 utility model.

[0023] Furthermore, the terms “first,” “second,” “third,” etc., are used for descriptive purposes only and should not be interpreted as indicating or implying relative importance.

[0024] Furthermore, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Please see Figures 1 to 4 This utility model provides a specific technical implementation scheme for an anti-fall-off mechanism for a wind source device in railway vehicles:

[0026] An anti-drop mechanism for an air source device of a railway vehicle, comprising: a cross beam 1, a longitudinal beam 2, a protective bar 3, a support block 4, a vibration sensor 5, an air source device mounting frame 6, a rubber strip 7, a vertical plate 8, a limit plate 9, and a fixed screw 10; two cross beams 1 are provided, two longitudinal beams 2 are welded to both ends of the two cross beams 1, two support blocks 4 are fixedly connected to the outer walls of the two longitudinal beams 2, a vibration sensor 5 is fixedly connected to the top of each of the two support blocks 4, and an air source device mounting frame 6 is fixedly connected to the outer walls of the two longitudinal beams 2 respectively by bolts; there is no limitation on the model of the vibration sensor 5, and it is sufficient if it meets the requirements. The vibration sensor 5 can monitor the connection status of the connection point in real time. If the connection part is loosened, the stiffness and damping of the system will decrease sharply, which will cause the vibration transmitted to the vehicle body through the suspension to increase significantly, especially in the low frequency band. Because a loose connection is like an "impact source", it will generate huge impact vibration, thereby identifying whether loosening has occurred.

[0027] Rubber strips 7 are fixedly connected to the top of each of the two cross beams 1; the rubber strips 7 can improve the connection stability between the cross beams 1 and the external vehicle body.

[0028] Vertical plates 8 are fixedly connected to the bottom of each of the two longitudinal beams 2, the limit plate 9 is slidably clamped to the inner walls of the two vertical plates 8, and the limit plate 9 presents a concave-shaped Chinese character structure; the limit plate 9 can slide along the inner walls of the vertical plates 8, thereby adjusting the size of the installation space.

[0029] Fixed screws 10 are threadedly connected to the inner walls of the two vertical plates 8, and the outer walls of the two fixed screws 10 are both abutted and tightened against the outer wall of the limit plate 9; the vertical plates 8 and the limit plate 9 can be connected and fixed by the fixed screws 10.

[0030] The protective bars 3 are fixedly connected to both sides of the outer wall of each of the two vertical plates 8; the protective bars 3 can protect the front and rear of the air source device of the railway vehicle.

[0031] Specifically, to ensure connection stability, polyimide friction inserts can be provided at the connection points between the fixing screw 10 and the vertical plate 8, and between the fixing screw 10 and the limiting plate 9. (The continuous operating temperature of the polyimide friction insert can reach 260℃, and the short-term peak temperature can exceed 300℃, making it suitable for applications such as engine periphery and high-temperature pipelines where nylon is completely unsuitable. Polyimide has an extremely low creep rate, maintaining a stable locking force over a long period. Under high-frequency micro-vibration, polyimide's wear resistance far exceeds that of nylon, resulting in a longer service life and preventing failure due to rapid wear. Of course, friction inserts made of other materials can also be used; the specific material selection is not limited and can be chosen according to the actual application.) When the fixing screw 10 is screwed into the inner wall of the vertical plate 8, the polyimide friction insert is compressed and deformed, producing... The enormous friction and radial pressure firmly lock the threads. The polyimide friction insert can increase the friction between the fixing screw 10 and the limiting plate 9 to ensure the tightness of the connection between the vertical plate 8 and the limiting plate 9. Of course, other locking methods and structures can also be used. The specific method can be selected according to the actual use situation to meet the technical features of this case. Those skilled in the art should understand this in a broad sense. When using it, the vibration sensor 5 needs to be connected to the external control device. The vibration sensor 5 can transmit the monitoring signal to the external control device so that the monitoring signal of the vibration sensor 5 can be analyzed and processed by the external control device. This is the existing technology of those skilled in the art. Therefore, this case will not elaborate on it. Those skilled in the art should understand this in a broad sense.

[0032] Specific implementation steps:

[0033] During use, the staff installs the air source device mounting bracket 6 onto the longitudinal beam 2, then installs the air source device onto the air source device mounting bracket 6, and then adjusts the position of the limiting plate 9 to limit and protect the bottom of the air source device. Then, the limiting plate 9 and the vertical plate 8 are connected and fixed by the fixing screw 10. At this time, the anti-fall mechanism of the railway vehicle air source device is installed onto the external car body through the crossbeam 1. Then, the vibration sensor 5 is connected to the control equipment of the car body, and then it can be put into use. During use, the vibration sensor 5 can monitor whether the connection is loose in real time. When loosening occurs, the staff can detect and deal with it in time.

[0034] In summary, this anti-detachment mechanism for railway vehicle air supply devices, through the arrangement of crossbeams, longitudinal beams, support blocks, vibration sensors, and air supply device mounting brackets, can continuously monitor vibration signals during use. When a connection becomes loose, the vibration amplitude in a specific frequency range will significantly increase. By comparing this with the "fingerprint" spectrum under normal conditions, staff can promptly detect abnormalities and perform rapid maintenance, thus fundamentally preventing detachment. This invention, through improvements to the anti-detachment mechanism for railway vehicle air supply devices, has the advantages of real-time monitoring of the connection points, enabling timely detection and rapid maintenance, thereby effectively solving the problems and shortcomings of existing devices.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mechanism for preventing the detachment of a ventilation device in railway vehicles, comprising: Cross beam (1), longitudinal beam (2), protective bar (3), support block (4), vibration sensor (5), air source device mounting bracket (6), rubber strip (7), vertical plate (8), limiting plate (9), fixing screw (10); characterized in that: there are two cross beams (1), two longitudinal beams (2) are welded at both ends of the two cross beams (1), two support blocks (4) are fixedly connected to the outer walls of the two longitudinal beams (2), the top of each of the two support blocks (4) is fixedly connected with a vibration sensor (5), and the outer wall of each of the two longitudinal beams (2) is fixedly connected with an air source device mounting bracket (6) by bolts.

2. The anti-fall-off mechanism for a railway vehicle air source device according to claim 1, characterized in that: The top of each of the two cross beams (1) is fixedly connected with a rubber strip (7).

3. The anti-fall-off mechanism for a railway vehicle air source device according to claim 1, characterized in that: The bottom of each of the two longitudinal beams (2) is fixedly connected with a vertical plate (8), a limiting plate (9) is slidably clamped to the inner wall of the two vertical plates (8), and the limiting plate (9) is in a Chinese character "concave"-shaped structure.

4. The anti-fall-off mechanism for a railway vehicle air source device according to claim 1, characterized in that: The inner wall of each of the two vertical plates (8) is threadedly connected with a fixing screw (10), and the outer wall of each of the two fixing screws (10) abuts against the outer wall of the limiting plate (9).

5. The anti-fall-off mechanism for a railway vehicle air source device according to claim 1, characterized in that: Both sides of the outer wall of the two vertical plates (8) are fixedly connected with protective bars (3).

Images