Sound acquisition device for running gear of bullet train

Abstract

The embodiment of the utility model provides a sound acquisition device for a running gear of a bullet train, and relates to the technical field of sound acquisition. The sound acquisition device for the running gear of the bullet train comprises a sound acquisition device body, two damping assemblies and two mounting assemblies, the two damping assemblies are respectively mounted on the upper surface and the lower surface of the sound acquisition device body; the two mounting assemblies are respectively connected with the damping assembly; the mounting assembly comprises a mounting flange, a first limiting ring, a second limiting ring, a ball, a connecting arm and a connecting ball head; the sound collection device body is used for collecting sound emitted by the walking part in the running process of the bullet train, and the limitation that a mechanician listens to abnormal sound with ears traditionally is effectively overcome. And vibration and external noise interference are effectively isolated through the damping assembly, so that the acquisition precision and reliability of sound data are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sound collection technical field, concretely point to a kind of motor train running part sound collection device. BACKGROUND

[0002] With the large-scale, wide-ranging mature operation of motor train unit technology in China railway system, the wear and tear and aging of different parts of vehicle system gradually become the main technical fault source affecting operation safety and efficiency. These faults usually manifest as fatigue, wear or aging of components, which can lead to vehicle failure in actual operation. For fault detection of running parts (including components such as wheels, bearings, car bodies, etc.), currently mainly rely on vehicle mechanics for manual inspection. Mechanics make daily inspections and use their experience to determine whether the vehicle has potential fault problems. However, this approach has certain limitations and cannot timely and comprehensively identify and handle all potential faults.

[0003] Currently, vehicle mechanics mainly rely on their ears to detect faults during motor train operation. However, the existing detection method lacks systematic collection and recording of sound, and cannot analyze, process and compare sound signals subsequently. Due to the lack of sound data collection, mechanics can only rely on hearing to judge abnormal sound or noise, which often has great randomness and subjectivity, and the correctness of diagnosis results has great uncertainty. At the same time, the hearing ability of human ear is affected by environmental noise, personal experience and fatigue level of mechanics, etc., leading to inconsistent diagnosis results of the same sound at different times and by different mechanics. SUMMARY

[0004] According to the embodiments of the utility model, a motor train running part sound collection device is provided. To solve the problems raised in the above background technology.

[0005] In the first aspect of the utility model, a motor train running part sound collection device is provided.

[0006] The motor train running part sound collection device comprises a sound collection device body, two shock absorbing components and two mounting components; the two shock absorbing components are respectively mounted on the upper surface and the lower surface of the sound collection device body; the two mounting components are respectively connected with the shock absorbing components;

[0007] The mounting assembly comprises a mounting flange, a first limiting ring, a second limiting ring, balls, a connecting arm and a connecting ball head; the first limiting ring is connected with the mounting flange, the second limiting ring is connected with the first limiting ring through the connecting arm, the number of the balls is multiple, recesses for mounting the balls are formed in the inner walls of the first limiting ring and the second limiting ring respectively, the balls are rollingly mounted in the recesses, an installation space for mounting the connecting ball head is formed between the first limiting ring and the second limiting ring, the connecting ball head is movably mounted between the first limiting ring and the second limiting ring, and the connecting ball head is fixedly connected with the damping assembly.

[0008] Preferably, the sound collecting device body comprises a shell, a mainboard, a microphone and a memory card, the two damping assemblies are connected with the shell respectively, the mainboard is arranged in the shell, and the memory card is arranged on the mainboard.

[0009] Preferably, the number of the microphones is multiple, and the multiple microphones are arranged in a cross-shaped array.

[0010] Preferably, the sound collecting device body further comprises a battery, the battery is arranged in the shell and is used for supplying power for the mainboard, the microphone and the memory card.

[0011] Preferably, the damping assembly comprises a base, a damper, a spring and a rubber seat; the base is fixedly connected with the connecting ball head, the damper is connected with the base, one end of the damper away from the base is connected with the rubber seat, the spring is sleeved on the damper, one end of the spring is connected with the base, and the other end of the spring is connected with the rubber seat; and the rubber seat is connected with the sound collecting device body.

[0012] Preferably, mounting bolts are inserted into the mounting flange.

[0013] One or more technical solutions provided in the application have at least the following technical effects or advantages:

[0014] The sound collecting device for a motor train unit has the following advantages: when vibration is generated during the running of the motor train unit, the damping assembly moves appropriately, drives the connecting ball head to vibrate in a small range between the first limiting ring and the second limiting ring, and then drives the balls to roll in the recesses.

[0015] The sound collecting device body is used for collecting the sound emitted by the running part of the motor train in operation, effectively solving the limitation of the traditional method of relying on the ear of a mechanic to listen to abnormal sound. And through the damping assembly, the vibration and external noise interference are effectively isolated, the collection accuracy and reliability of the sound data are improved. In addition, the device has strong stability and can work continuously during the train operation, is not affected by vibration, ensures the continuity and accuracy of sound collection, thereby providing more reliable data support for train fault detection, and improving the efficiency and safety of fault diagnosis.

[0016] It should be understood that the content described in the content part of the utility model is not intended to limit the key or important features of the embodiments of the utility model, nor to limit the scope of the utility model. Other features of the utility model will become apparent through the following description. BRIEF DESCRIPTION OF DRAWINGS

[0017] The above and other features, advantages, and aspects of the embodiments of the utility model will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar elements, in which:

[0018] Figure 1 A perspective structural schematic view of a motor train running part sound collecting device according to an embodiment of the utility model is shown;

[0019] Figure 2 A partial cross-sectional structural schematic view of a mounting assembly of a motor train running part sound collecting device according to an embodiment of the utility model is shown;

[0020] Figure 3 A perspective structural schematic view of a first view angle of a mounting assembly of a motor train running part sound collecting device according to an embodiment of the utility model is shown, which does not include a connecting ball head;

[0021] Figure 4 A perspective structural schematic view of a second view angle of a mounting assembly of a motor train running part sound collecting device according to an embodiment of the utility model is shown, which does not include a connecting ball head;

[0022] Figure 5 A perspective structural schematic view of a sound collecting device body of a motor train running part sound collecting device according to an embodiment of the utility model is shown;

[0023] Figure 6 An exploded structural schematic view of a sound collecting device body of a motor train running part sound collecting device according to an embodiment of the utility model is shown.

[0024] BRIEF DESCRIPTION OF DRAWINGS

[0025] 1-sound acquisition device body, 11-housing, 12-mainboard, 13-microphone, 14-storage card, 15-battery, 2-damping assembly, 21-base, 22-damper, 23-spring, 24-rubber seat, 3-mounting assembly, 31-mounting flange, 32-first limiting ring, 33-second limiting ring, 34-rolling ball, 35-connecting arm, 36-connecting ball head, 37-mounting bolt. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] In addition, the term "and / or" in this paper is only a description of the association between the associated objects, which means that there can be three relationships, for example, A and / or B, which can mean that there are three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0028] As shown in Figure 1 and Figure 6 The motor train running part sound acquisition device includes: a sound acquisition device body 1, two damping assemblies 2 and two mounting assemblies 3; two damping assemblies 2 are installed on the upper surface and the lower surface of the sound acquisition device body 1 respectively; two mounting assemblies 3 are connected with the damping assemblies 2 respectively.

[0029] The sound acquisition device body 1 is responsible for collecting the sound signals generated by the motor train running part during operation. Two damping assemblies 2 are installed on the upper surface and the lower surface of the sound acquisition device body 1 respectively, which plays a role in reducing the influence of external vibration on the collection equipment. The damping assembly 2 is made of elastic material, such as rubber or elastic plastic, which can effectively absorb the vibration from the train carriage and the ground, thereby reducing the interference of these vibrations on the sound acquisition accuracy. Two mounting assemblies 3 are connected with the damping assemblies 2 respectively and fixed on the lower surface of the motor train seat and the upper surface of the train carriage floor. Two mounting assemblies 3 are used for mounting on the lower surface of the motor train seat and the upper surface of the train carriage floor respectively, and after mounting, the sound acquisition device body 1 is located between the motor train seat and the train carriage floor.

[0030] The mounting assembly 3 comprises a mounting flange 31, a first limiting ring 32, a second limiting ring 33, a plurality of balls 34, a connecting arm 35 and a connecting ball head 36. The first limiting ring 32 is connected with the mounting flange 31, and the second limiting ring 33 is connected with the first limiting ring 32 through the connecting arm 35. An installation space is formed between the first limiting ring 32 and the second limiting ring 33 for installing the balls 34 and the connecting ball head 36. The balls 34 are installed on the inner walls of the first limiting ring 32 and the second limiting ring 33 respectively. The inner walls of the first limiting ring 32 and the second limiting ring 33 are provided with corresponding grooves for accommodating and guiding the rolling of the balls 34, ensuring that the balls 34 can freely roll in the grooves, reducing friction and maintaining smooth movement.

[0031] The connecting ball head 36 is movably installed between the first limiting ring 32 and the second limiting ring 33 and is fixedly connected with the damping assembly 2. The connecting ball head 36 is spherical and can make appropriate rotational or vibrational movement between the first limiting ring 32 and the second limiting ring 33. The connecting ball head 36 is in contact with the balls 34, and when the damping assembly 2 moves, the connecting ball head 36 will drive the balls 34 to roll in the grooves, thereby absorbing vibrations and reducing the vibrations transmitted to the sound collecting device body 1.

[0032] In actual use, the mounting flanges 31 of the two mounting assemblies 3 are respectively installed on the lower surface of the train seat and the upper surface of the car floor, ensuring that the sound collecting device body 1 is stably located between the seat and the car floor. The sound collecting device body 1 is used to collect sound signals generated by the running part of the train. When vibrations are generated during the running of the train, the vibrations will be transmitted to the mounting assembly 3 through the running part of the train, and the damping assembly 2 will effectively slow down and reduce these vibrations, avoiding excessive vibrations from being transmitted to the sound collecting device body 1. When vibrations are generated, the damping assembly 2 will make appropriate movement, driving the connecting ball head 36 to make small-range vibration between the first limiting ring 32 and the second limiting ring 33, and then driving the connecting ball head 36 to drive the balls 34 to roll in the grooves. Through this structure, the damping assembly 2 can effectively absorb and disperse vibrations, reduce interference to the sound collecting device body 1, ensure that the collected sound signals are more accurate, and avoid errors caused by vibrations.

[0033] In this embodiment, the sound collecting device body 1 comprises a shell 11, a main board 12, a microphone 13 and a storage card 14. Two damping assemblies 2 are connected with the shell 11 to ensure the stability and shock resistance of the sound collecting device body 1 during installation. The main board 12 is arranged inside the shell 11 and is responsible for connecting and controlling various components of the sound collecting device body 1. The storage card 14 is arranged on the main board 12 and is used to store collected sound data and related information, ensuring long-term preservation and subsequent processing of sound data.

[0034] In the present embodiment, the microphone 13 is arranged on the lower surface of the shell 11 to correspond to the sound emitted by the train running part. By installing the microphone 13 on the lower surface of the shell 11, it can be ensured that the microphone can directly receive the sound signal from the train running part. This arrangement helps to improve the response sensitivity and collection accuracy of the sound collection device, so that it can more effectively capture various sounds generated by the running part, such as friction sound, mechanical operation sound, etc., to ensure the accuracy and comprehensiveness of the sound data.

[0035] In the present embodiment, the number of microphones 13 is multiple, and the multiple microphones 13 are arranged in a cross-shaped array. This arrangement can ensure that the sound collection device can effectively capture the sound signal from the train running part at different angles and directions, improving the all-around coverage and collection accuracy of the sound collection.

[0036] In the present embodiment, the sound collection device body 1 further comprises a battery 15 arranged inside the shell 11 for providing power support for the main board 12, microphone 13 and memory card 14. The design of the battery 15 can ensure that the sound collection device can work continuously and stably without external power supply, so as to ensure that the collection of sound signals will not be interrupted due to power problems.

[0037] In the present embodiment, the damping assembly 2 comprises a base 21, a damper 22, a spring 23 and a rubber seat 24; the base 21 is fixedly connected with the connecting ball head 36 to form the basic support part of the damping assembly. The design of the base 21 ensures that it can be stably connected with the connecting ball head 36 and provide stable support when vibration occurs. The damper 22 is connected with the base 21, and the function of the damper 22 is to absorb and reduce the vibration transmitted to the sound collection device from the outside, reducing its influence on the collection accuracy. The other end of the damper 22 is away from the base 21 and is connected with the rubber seat 24, which further plays a role of buffering and damping, effectively reducing the interference of vibration on the sound collection device body 1. The spring 23 is sleeved on the damper 22 for providing additional elastic support. One end of the spring 23 is connected with the base 21, and the other end is connected with the rubber seat 24 to form an elastic buffering system, further improving the damping effect. The design of the spring 23 can adjust its elasticity according to the intensity of the vibration, ensuring that the damping effect can remain good in various working environments. The rubber seat 24 is connected with the sound collection device body 1, ensuring that the entire damping assembly can be tightly fixed on the sound collection device, thereby effectively isolating and reducing the influence of vibration on the collection device.

[0038] Through the above structure, the shock absorption assembly 2 can effectively absorb and reduce external vibration, ensure that the sound collection device can work stably during the train operation, avoid vibration interference to the collected sound signal, and improve the accuracy and reliability of the collected data.

[0039] In the embodiment, the mounting flange 31 is inserted with mounting bolts 37 for fixing the connection between the mounting flange 31 and the lower surface of the train seat and the upper surface of the carriage floor. The design of the mounting bolts 37 ensures that the mounting flange 31 can be closely and stably connected with the seat and the carriage floor, avoids loosening or instability of the device due to external vibration or movement, and thus improves the stability and working reliability of the sound collection device. In the actual installation process, the mounting bolts 37 are fixedly connected with the seat and the carriage floor through appropriate screw holes, so that the device can be firmly kept in place during the train operation, and position deviation or damage of the equipment due to vibration or external force is avoided.

[0040] The above specific embodiments do not constitute a limitation on the protection scope of the present application. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A bullet train running gear sound acquisition device, characterized by, The utility model relates to a sound acquisition device, including: Sound acquisition device body (1), two shock attenuation components (2) and two mounting components (3), two shock attenuation components (2) are installed on the upper surface and the lower surface of sound acquisition device body (1) respectively, two mounting components (3) are connected with shock attenuation component (2) respectively, The mounting component (3) includes mounting flange (31), first limit ring (32), second limit ring (33), a plurality of rolling balls (34), connecting arm (35) and connecting ball head (36), the first limit ring (32) is connected with the mounting flange (31), the second limit ring (33) is connected with the first limit ring (32) through connecting arm (35), the number of rolling balls (34) is multiple, the inner wall of the first limit ring (32) and the second limit ring (33) is provided with recess for mounting rolling ball (34) respectively, the rolling ball (34) is rotatably installed in the recess, the connecting ball head (36) is formed between the first limit ring (32) and the second limit ring (33) installation space for mounting, the connecting ball head (36) is movably installed between the first limit ring (32) and the second limit ring (33), the connecting ball head (36) is fixedly connected with shock attenuation component (2).

2. The train bogie sound acquisition device of claim 1, wherein, The sound acquisition device body (1) includes a shell (11), a main board (12), a microphone (13) and a memory card (14), two shock attenuation components (2) are connected with the shell (11) respectively, the main board (12) is arranged in the shell (11), and the memory card (14) is arranged on the main board (12).

3. The device for collecting sound of a running part of a train according to claim 2, wherein The number of microphones (13) is multiple, and multiple microphones (13) are arranged in a cross-shaped array.

4. The train bogie sound acquisition device of claim 2, wherein, The sound acquisition device body (1) further includes a battery (15), the battery (15) is arranged in the shell (11), and is used for power supply for the main board (12), the microphone (13) and the memory card (14).

5. The train running part sound acquisition device according to claim 1, characterized by The shock attenuation component (2) includes a base (21), a damper (22), a spring (23) and a rubber seat (24), the base (21) is fixedly connected with the connecting ball head (36), the damper (22) is connected with the base (21), one end of the damper (22) away from the base (21) is connected with the rubber seat (24), the spring (23) is sleeved on the damper (22), one end of the spring (23) is connected with the base (21), and the other end of the spring (23) is connected with the rubber seat (24), and the rubber seat (24) is connected with the sound acquisition device body (1).

6. The train running part sound acquisition device according to claim 1, characterized by The mounting flange (31) is inserted with mounting bolt (37).

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