Rail transit vibration-induced noise data acquisition device

Abstract

The utility model relates to collecting device technical field discloses a kind of noise data collection devices caused by rail transit vibration, including support pole, the inner wall lower end of support pole is equipped with storage groove, the middle part of storage groove bottom is fixedly connected with servo motor, the output of servo motor is fixedly connected with screw rod one, the outer wall of screw rod one pole body is equipped with threaded sleeve sleeve.The utility model in this paper, when the noise data collection device caused by rail transit vibration is used, screw rod one is driven to rotate by servo motor, threaded sleeve is moved up and down, and then the support pole is unfolded or folded by hinge rod, and the height of the collector is adjusted flexibly, and the height requirement of different monitoring scenes (such as the periphery of track, inside tunnel) is adapted.

Description

Technical Field

[0001] This utility model relates to the field of data acquisition device technology, and in particular to a data acquisition device for noise caused by vibration in rail transit. Background Technology

[0002] As is well known, noise data acquisition devices caused by vibration in rail transit are monitoring devices specifically designed for the rail transit field. They are fixedly installed at key locations such as track test sections, power supply rails, tunnels, or bridges, or can be portable and deployed around trains or tracks. Their core working mechanism is to capture signals such as vibration acceleration and noise sound pressure level generated by trains passing by or equipment running in real time through sensors. The data acquisition instrument filters, amplifies, and digitizes the signals. They are typically deployed when temporary vibration and noise anomalies occur along the track (such as abnormal noises after a section of track is run over by a train, or a sudden increase in vibration amplitude at bridge connections) or when data from specific points needs to be supplemented (such as verifying the track restoration status after construction). However, traditional noise data acquisition devices caused by vibration in rail transit are limited by their large size and the need for tools for transportation, making them inconvenient to carry.

[0003] Therefore, those skilled in the art have provided a noise data acquisition device for rail transit vibration to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a noise data acquisition device for rail transit vibration. When in use, this device uses a servo motor to drive a screw to rotate, causing a threaded sleeve to move up and down. This, in turn, pushes a support rod to unfold or retract via a hinged rod, achieving rapid and stable support and storage with the support base. No complex manual assembly is required, improving portability and deployment efficiency. Simultaneously, a rotary motor drives a second screw to rotate, causing the threaded sleeve to move the lifting rod 34 and the slide rod 13 up and down, flexibly adjusting the height of the collector to adapt to the height requirements of different monitoring scenarios (such as around the track or inside tunnels).

[0005] To achieve the above objectives, the present invention provides the following technical solution: A noise data acquisition device for vibration caused by rail transit includes a support rod, a storage groove is provided at the lower end of the inner wall of the support rod, a servo motor is fixedly connected to the middle of the bottom surface of the storage groove, a screw is fixedly connected to the output end of the servo motor, a threaded sliding sleeve is sleeved on the outer wall of the screw, and multiple hinged rods are hinged to the outer wall of the threaded sliding sleeve. The upper end of the support rod has a storage cavity. A rotary motor is fixedly connected to the middle of the bottom surface of the storage cavity. A screw rod is fixedly connected to the output end of the rotary motor. A threaded sleeve block is threadedly connected to the outer wall of the screw rod. Lifting rods are fixedly connected to the four corners of the upper surface of the threaded sleeve block. A sliding rod is fixedly connected to the upper end of the lifting rod. A collector is fixedly connected to the upper end of the sliding rod.

[0006] Compared with existing noise data acquisition devices caused by rail transit vibration, this new noise data acquisition device for rail transit vibration uses a servo motor to drive a screw to rotate, which in turn moves the threaded sleeve up and down. This, in turn, pushes the support rod to unfold or retract via a hinged rod, achieving rapid and stable support and storage with the support base. No complicated manual assembly is required, improving the efficiency of portable deployment. At the same time, a rotary motor drives a second screw to rotate, causing the threaded sleeve block to move the lifting rod 34 and the slide rod 13 up and down, flexibly adjusting the height of the collector to meet the height requirements of different monitoring scenarios.

[0007] Furthermore, the upper end of the outer wall of each support rod is rotatably connected to a plurality of support rods, and the lower end of each support rod is fixedly connected to a support. The above technical solution facilitates overall support through the support rods and supports.

[0008] Furthermore, a PLC control panel is provided at the lower part of the rear end of the outer wall of the support rod, and the PLC control panel is electrically connected to the servo motor, the rotary motor and the collector respectively; The above technical solution allows for electrical connection between the PLC control panel and the servo motor, rotary motor, and collector, facilitating their switching.

[0009] Furthermore, the threaded sleeve is slidably connected to the inner wall of the storage groove; The above technical solution ensures that the hinge rod can be driven to extend or retract the support rod, thus guaranteeing the stable extension and retraction of the device's support structure.

[0010] Furthermore, the outer walls of the hinged rods on opposite sides are respectively hinged to the outer walls of the support rods; Through the above technical solution, the outer wall of the hinge rod on the opposite side is hinged to the outer wall of the support rod, so that when the threaded sleeve moves up and down, the force can be effectively transmitted through the hinge rod, driving the support rod to expand or retract synchronously.

[0011] Furthermore, the threaded sleeve is slidably connected to the inner wall of the storage cavity; The above technical solution, through the sliding connection of the threaded sleeve block on the inner wall of the storage cavity, can stably drive the lifting rod, sliding rod and collector to move up and down.

[0012] Furthermore, the slide rod is slidably connected to the outer wall of the support rod; The above technical solution allows for sliding connection of the slide rod to the outer wall of the support rod, facilitating movement along with the lifting rod.

[0013] This utility model has the following beneficial effects: This utility model proposes a noise data acquisition device for rail transit vibration. Compared with existing noise data acquisition devices for rail transit vibration, this device uses a servo motor to drive a screw to rotate, which in turn moves a threaded sleeve up and down. This, in turn, pushes a support rod to unfold or retract via a hinged rod. Together with the support, it achieves rapid and stable support and storage without the need for complex manual assembly, thus improving portability and deployment efficiency. At the same time, a rotary motor drives a second screw to rotate, which causes the threaded sleeve to move the lifting rod 34 and the slide rod 13 up and down, flexibly adjusting the height of the collector to meet the height requirements of different monitoring scenarios (such as around the track or inside the tunnel). Attached Figure Description

[0014] Figure 1 This is an isometric view of a noise data acquisition device caused by vibration in rail transit proposed in this utility model; Figure 2 This is a schematic diagram of a noise data acquisition device for vibration caused by rail transit proposed in this utility model; Figure 3 This is a schematic axial section of the support rod in a noise data acquisition device for vibration-induced rail transit proposed in this utility model. Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 for Figure 3 Enlarged view of point B in the middle.

[0015] Explanation of reference numerals in the attached figures: 1. Support rod; 11. Support rod; 12. Support; 13. Slide rod; 14. Collector; 15. PLC control panel; 2. Storage slot; 21. Servo motor; 22. Screw one; 23. Threaded sleeve; 24. Hinge rod; 3. Storage cavity; 31. Rotary motor; 32. Screw two; 33. Threaded sleeve block; 34. Lifting rod. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Reference Figure 1-5 An embodiment of this utility model is provided: a noise data acquisition device caused by vibration of rail transit, including a support rod 1, a storage groove 2 is provided at the lower end of the inner wall of the support rod 1, a servo motor 21 is fixedly connected to the middle of the bottom surface of the storage groove 2, a screw 22 is fixedly connected to the output end of the servo motor 21, a threaded sliding sleeve 23 is sleeved on the outer wall of the screw 22, and a plurality of hinged rods 24 are hinged to the outer wall of the threaded sliding sleeve 23. The upper end of the support rod 1 is provided with a storage cavity 3. A rotary motor 31 is fixedly connected to the middle of the bottom surface of the storage cavity 3. A screw 32 is fixedly connected to the output end of the rotary motor 31. A threaded sleeve 33 is threadedly connected to the outer wall of the screw 32. Lifting rods 34 are fixedly connected to the four corners of the upper surface of the threaded sleeve 33. A slide rod 13 is fixedly connected to the upper end of the lifting rod 34. A collector 14 is fixedly connected to the upper end of the slide rod 13.

[0018] Compared with existing noise data acquisition devices caused by rail transit vibration, this noise data acquisition device for rail transit vibration uses a servo motor 21 to drive the screw 22 to rotate, which in turn drives the threaded sleeve 23 to move up and down. This, in turn, pushes the support rod 11 to unfold or retract via the hinge rod 24. Together with the support 12, it achieves rapid and stable support and storage without the need for complicated manual assembly, thus improving the efficiency of portable deployment. At the same time, the rotary motor 31 drives the screw 32 to rotate, which causes the threaded sleeve 33 to drive the lifting rod 34 and the slide rod 13 to move up and down, flexibly adjusting the height of the collector 14 to adapt to different monitoring scenarios such as the height requirements of the track perimeter and tunnels.

[0019] Multiple support rods 11 are rotatably connected to the upper end of the outer wall of the support rod 1, and a support 12 is fixedly connected to the lower end of each support rod 11. The support rod 11 and the support 12 facilitate the overall support.

[0020] A PLC control panel 15 is provided at the lower part of the rear end of the outer wall of the support rod 1. The PLC control panel 15 is electrically connected to the servo motor 21, the rotary motor 31 and the collector 14 respectively. The PLC control panel 15 is electrically connected to the servo motor 21, the rotary motor 31, and the collector 14 respectively, which facilitates the control of their switching.

[0021] The threaded sleeve 23 is slidably connected to the inner wall of the storage groove 2; Ensure that the hinge rod 24 drives the support rod 11 to unfold or retract, thus guaranteeing the stable unfolding and retraction of the device's support structure.

[0022] The outer walls of the hinge rods 24 on opposite sides are respectively hinged to the outer walls of the support rods 11. The hinge rod 24 is hinged to the outer wall of the support rod 11 on the opposite side of the outer wall, so that when the threaded sleeve 23 moves up and down, the force can be effectively transmitted through the hinge rod 24, which drives the support rod 11 to open or close synchronously.

[0023] The threaded sleeve 33 is slidably connected to the inner wall of the storage cavity 3; The threaded sleeve 33 slides on the inner wall of the storage cavity 3, which can stably drive the lifting rod 34, the slide rod 13 and the collector 14 to move up and down.

[0024] Slide rod 13 is slidably connected to the outer wall of support rod 1; The slide bar 13 is slidably connected to the outer wall of the support rod 1, making it easy to move together with the lifting rod 34.

[0025] Collector 14 accurately captures noise signals generated during train operation, such as vibrations from track-wheel contact and bogie operation, using built-in noise sensors (e.g., capacitive sound pressure sensors). Simultaneously, it incorporates built-in filtering and amplification preprocessing modules to filter out irrelevant electromagnetic interference and noise, converting weak noise signals into processable electrical signals. The data processing unit then performs digitization and timestamp marking. The noise data (e.g., sound pressure level, noise spectrum) can then be transmitted to the backend via a real-time transmission module (e.g., 4G / 5G) or temporarily stored in a memory chip for later analysis. This effectively collects vibration-derived noise from rail transit, providing data support for track condition assessment and noise pollution control.

[0026] Working principle: During use, the servo motor 21 is started via the PLC control panel 15. The servo motor 21 drives the screw 22 to rotate, causing the threaded sleeve 23 to slide up and down in the storage slot 2. The threaded sleeve 23 drives the hinge rod 24 to move. Since the hinge rod 24 is hinged to the support rod 11, it pushes the support rod 11 to unfold or retract. The support 12 cooperates to achieve stable support or storage of the device. At the same time, the PLC control panel 15 starts the rotary motor 31, which drives the screw 32 to rotate, causing the threaded sleeve block 33 to slide up and down in the storage cavity 3. The threaded sleeve block 33 drives the slide rod 13 to slide on the outer wall of the support rod 1 through the lifting rod 34, thereby adjusting the height of the collector 14. After the collector 14 is started, it can collect rail transit vibration and noise data at the set height.

[0027] The following points should be noted in this article: 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in a general design.

[0028] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A noise data acquisition device for vibration caused by rail transit, comprising a support rod (1), characterized in that: The lower end of the inner wall of the support rod (1) is provided with a storage groove (2). A servo motor (21) is fixedly connected to the middle of the bottom surface of the storage groove (2). A screw rod (22) is fixedly connected to the output end of the servo motor (21). A threaded sleeve (23) is fitted on the outer wall of the screw rod (22). Multiple hinge rods (24) are hinged to the outer wall of the threaded sleeve (23). The upper end of the support rod (1) is provided with a storage cavity (3). A rotary motor (31) is fixedly connected to the middle of the bottom surface of the storage cavity (3). A screw rod (32) is fixedly connected to the output end of the rotary motor (31). A threaded sleeve block (33) is threadedly connected to the outer wall of the screw rod (32). Lifting rods (34) are fixedly connected to the four corners of the upper surface of the threaded sleeve block (33). A sliding rod (13) is fixedly connected to the upper end of the lifting rod (34). A collector (14) is fixedly connected to the upper end of the sliding rod (13).

2. The noise data acquisition device caused by vibration in rail transit according to claim 1, characterized in that: The upper end of the outer wall of the support rod (1) is rotatably connected to a plurality of support rods (11), and the lower end of the support rods (11) is fixedly connected to a support (12).

3. The noise data acquisition device caused by vibration in rail transit according to claim 1, characterized in that: A PLC control panel (15) is provided at the lower part of the rear end of the outer wall of the support rod (1). The PLC control panel (15) is electrically connected to the servo motor (21), the rotary motor (31) and the collector (14).

4. The noise data acquisition device caused by vibration in rail transit according to claim 1, characterized in that: The threaded sleeve (23) is slidably connected to the inner wall of the storage groove (2).

5. The noise data acquisition device caused by vibration in rail transit according to claim 1, characterized in that: The outer walls of the hinge rods (24) on opposite sides are respectively hinged to the outer walls of the support rods (11).

6. The noise data acquisition device caused by vibration in rail transit according to claim 1, characterized in that: The threaded sleeve (33) is slidably connected to the inner wall of the storage cavity (3).

7. The noise data acquisition device caused by vibration in rail transit according to claim 1, characterized in that: The slide bar (13) is slidably connected to the outer wall of the support rod (1).

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