Microcrack monitoring device for slide plate

Abstract

The utility model discloses a slide plate microcrack monitoring device, and belongs to the technical field of railway monitoring. A slide plate microcrack monitoring device comprises a protective shell and a fixed bottom plate, a vibrating wire strain gauge is arranged on the bottom surface of the fixed bottom plate, the vibrating wire strain gauge is attached to a slide plate for microcrack monitoring during use, and a collecting assembly and a processing assembly collect and process data signals of the vibrating wire strain gauge. And the data is transmitted to a control room terminal for display to prompt a worker to process the abnormal condition of the slide plate in time, so that the data processing efficiency and the slide plate micro-crack monitoring efficiency are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to railway monitoring technical field especially relates to a sliding bed board microcrack monitoring device. BACKGROUND

[0002] With the rapid development of track traffic, especially the popularization of high-speed railway, the requirement of driving safety is increasingly improved. As the key component to ensure the train to pass the turnout smoothly, the microcrack of sliding bed plate may develop into serious damage rapidly, endangering the driving safety. The installation and maintenance of monitoring device need to make great changes to railway facilities, affecting the normal operation of railway; the accuracy of sliding bed plate microcrack monitoring device may be affected by environmental factors, reducing the monitoring accuracy of monitoring device; the processing method affects the monitoring efficiency when processing a large amount of data. SUMMARY

[0003] The utility model discloses a sliding bed plate microcrack monitoring device to solve the problems of complicated installation and maintenance, low monitoring accuracy and poor monitoring efficiency of the monitoring device in the prior art.

[0004] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A sliding bed plate microcrack monitoring device, comprising a protective shell and a fixed bottom plate, the protective shell is placed above the fixed bottom plate, the bottom of the fixed bottom plate is fixedly connected with a vibrating wire strain gauge, the vibrating wire strain gauge is electrically connected with a collection component, and the collection component is electrically connected with a processing component.

[0006] In some embodiments, the surface of the fixed bottom plate is provided with a groove around, the protective shell is fixed in the groove, and a rubber sealing ring is arranged in the groove to fix and reinforce the protective shell.

[0007] In some embodiments, the vibrating wire strain gauge is fixedly connected to the bottom of the fixed bottom plate and comprises a substrate, a sensitive grid and a cover layer, the sensitive grid is attached above the substrate, lead wires are arranged at both ends of the sensitive grid, and the cover layer is uniformly coated on the sensitive grid and the substrate.

[0008] In some embodiments, the collection component is located above the fixed bottom plate and comprises a signal conditioning unit and an analog-to-digital converter, the signal conditioning unit is electrically connected with the analog-to-digital converter, and the analog-to-digital converter is electrically connected with the processing component.

[0009] In some embodiments, the processing component and the collection component are electrically connected and comprise a microcontroller, a memory and a wireless communication chip, the microcontroller is electrically connected with the memory, the memory is electrically connected with the wireless communication chip, and the microcontroller is provided with a GPIO external interface.

[0010] Compared with the prior art, the micro crack monitoring device for sliding bed plate has the following beneficial effects.

[0011] 1、The micro crack monitoring device is provided with a protective shell and is fixed in the grooves on the four edges of the fixed bottom plate through a rubber sealing ring, thereby protecting the components of the monitoring device and solving the problem of poor monitoring efficiency caused by environmental influence.

[0012] 3、The utility model discloses setting the vibrating wire strain gauge, acquisition component and processing component and electrically connecting, realize the stress and the strain condition of monitoring part are collected, processing and analysis, improved the working efficiency of monitoring device.

[0013] The other advantages, objects and features of the utility model will be described in the subsequent specification to some extent; and to some extent, based on the study of the following text, it will be obvious to those skilled in the art; or, can be taught from the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a structure schematic view of the micro crack monitoring device for sliding bed plate.

[0015] Fig. 2 It is an internal structure schematic view of the micro crack monitoring device for sliding bed plate.

[0016] Fig. 3 It is a monitoring principle schematic view of the utility model.

[0017] In the drawing:

[0018] 1, protective shell, 2, fixed bottom plate, 3, groove, 5, vibrating wire strain gauge, 501, base, 502, sensitive grid, 503, cover layer, 504, lead wire, 6, acquisition component, 601, signal conditioning unit, 602, analog-to-digital converter, 7, processing component, 701, microcontroller, 702, memory, 703, wireless communication chip, 704, GPIO external interface. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0020] Refer to Figs. 1-3The utility model relates to a kind of micro crack monitoring devices of slide bed plate, including protective shell 1 and fixed bottom plate 2, the protective shell 1 is buckled and placed above fixed bottom plate 2, the bottom of the fixed bottom plate 2 is fixedly connected vibrating wire strain gauge 5, the vibrating wire strain gauge 5 is electrically connected transmitter, the transmitter includes acquisition component 6 and wireless transmission module, the acquisition component 6 is electrically connected processing component 7, the vibrating wire strain gauge 5 is of AC-302 type vibrating wire steel surface strain gauge, wherein AC-302 type vibrating wire steel surface strain gauge is by strain gauge, steel surface fixture and observation cable group layer, not too much here.

[0021] In the utility model, the four corners of the fixed bottom plate 2 are provided with grooves 3, the protective shell 1 is fixed in the grooves 3, and rubber sealing rings are arranged in the grooves 3 to reinforce and fix the protective shell 1, wherein the rubber sealing rings are arranged on the inner walls of the grooves 3; the arrangement of the rubber sealing rings ensures that the slide bed plate monitoring device can normally operate in a harsh environment, and the insertion of the protective shell 1 causes the rubber sealing rings to deform and generate elastic force when in use, so as to enhance the fixing effect and reduce the vibration generated when the vehicle is running, thereby reducing the influence of the environment on the slide bed plate monitoring efficiency

[0022] The fixed bottom plate 2 is made of aluminum alloy and is welded on the slide bed plate to keep the slide bed plate monitoring device stable. The slide bed plate is located between the railway track and the sleeper and is used to support the weight of the train and the track to ensure the smoothness and safety of the train when passing through the turnout. The vibrating wire strain gauge 5 is welded on the side of the slide bed plate for micro crack monitoring. The acquisition component 6 and the processing component 7 collect, process and transmit data, realize real-time transmission of micro crack monitoring information of the slide bed plate, and improve the safety and reliability of railway transportation.

[0023] In the utility model, the vibrating wire strain gauge 5 includes a substrate 501, a sensitive grid 502, a cover layer 503 and a lead wire 504. The substrate 501 is made of polyimide material to provide basic support for the vibrating wire strain gauge 5. The sensitive grid 502 is located above the substrate 501 and is composed of resistance wire to directly sense the deformation of the slide bed plate. The resistance value changes with deformation. The cover layer 503 is uniformly coated on the surface of the sensitive grid 502 and the substrate 501 to protect the sensitive grid 502 and provide insulation effect. The lead wire 504 is arranged at both ends of the sensitive grid 502 to transmit the electrical signal of the sensitive grid 502. The vibrating wire strain gauge 5 is fixed at the bottom of the fixed bottom plate 2 in a buckle type connection mode. When the slide bed plate monitoring device operates, the vibrating wire strain gauge 5 is attached to the slide bed plate. When the slide bed plate is subjected to external force and slightly deformed, the sensitive grid 502 deforms to cause the resistance value to change. The signal is transmitted to the acquisition component 6 through the lead wire 504, and the working efficiency of the slide bed plate monitoring device is improved.

[0024] The utility model discloses, and acquisition component 6 is located the top of fixed bottom plate 2, including signal conditioning unit 601 and ad converter 602, signal conditioning unit 601 includes operational amplifier chip and digital filter, signal conditioning unit 601 electric connection ad converter 602, and ad converter electric connection processing component 7. Acquisition component 6 receives the signal transmission of vibrating string type strain gauge 5, and the original signal received is amplified and filtered through signal conditioning unit 601, and the signal quality is ensured;Ad converter 602 receives the analog signal transmission of signal conditioning unit through electric connection, and the analog signal is converted into digital signal and is transmitted to processing component 7 through electric connection, provides high-quality data basis for subsequent data processing, improves data analysis accuracy.

[0025] The utility model discloses, and processing component 7 includes microcontroller 701, memory 702, wireless communication chip 703 and GPIO external interface 704, through electric connection receiving the digital signal transmission of acquisition component 6, and microcontroller 701 adopts STM32 singlechip and processes and logic control received data, and adopts GPIO external interface 704 and connects LED pilot lamp;Memory 702 adopts NAND Flash memory and stores and collects the data after processing;Wireless communication chip 703 adopts ESP32 communication chip, and supports WiFi and bluetooth dual mode communication, realizes with remote control room terminal data transmission, improves data processing efficiency. When processing component 7 processes abnormal deformation data signal, through ESP32 communication chip, abnormal data information is transmitted to remote control room terminal, and control room terminal shows the stress and deformation of sliding bed plate in real time, and when there is microcrack, warning information is sent, and after information is received in remote control room terminal, sliding bed plate is checked and repaired in time, and simultaneously, the LED pilot lamp connected with GPIO external interface 704 flashes to remind the patrol personnel, ensure that the abnormal condition of sliding bed plate is improved in time, guarantee the safe operation of railway.

[0026] The above, only for the preferred specific implementation mode of the utility model, but the protection scope of the utility model is not limited to this, any familiar with the technical field of the technical person in the utility model disclosed technical range, according to the utility model technical scheme and the utility model concept add up to equivalent replacement or change, all should be covered in the protection scope of the utility model.

[0027] Although the embodiments of the utility model have been shown and described above, it should be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model. Those skilled in the art can change, modify, replace and transform the above-mentioned embodiments within the scope of the utility model.

Claims

1. A slip-sheet micro-crack monitoring device, characterized by: Including protective shell (1) and fixed bottom plate (2), the protective shell (1) is buckled and placed above the fixed bottom plate (2), the bottom of the fixed bottom plate (2) is fixedly connected with the vibrating wire strain gauge (5), the vibrating wire strain gauge (5) is electrically connected with the acquisition assembly (6), and the acquisition assembly (6) is electrically connected with the processing assembly (7).

2. The microcrack monitoring device of claim 1, wherein, The surface of the fixed bottom plate (2) is provided with a groove (3) around, the protective shell (1) is fixed in the groove (3), and the groove (3) is provided with a rubber sealing ring for reinforcing the protective shell (1).

3. The microcrack monitoring device of claim 1, wherein, The vibrating wire strain gauge (5) is fixedly connected at the bottom of the fixed bottom plate (2), including a base (501), a sensitive grid (502) and a cover layer (503), the sensitive grid (502) is attached above the base (501), the sensitive grid (502) is provided with a lead (504) at both ends, and the cover layer (503) is uniformly coated on the sensitive grid (502) and the base (501).

4. The microcrack monitoring device of claim 1, wherein, The acquisition assembly (6) is located above the fixed bottom plate (2), including a signal conditioning unit (601) and an analog-to-digital converter (602), the signal conditioning unit (601) is electrically connected with the analog-to-digital converter (602), and the analog-to-digital converter (602) is electrically connected with the processing assembly (7).

5. The microcrack monitoring device of claim 1, wherein, The processing assembly (7) and the acquisition assembly (6) are electrically connected, including a microcontroller (701), a memory (702) and a wireless communication chip (703), the microcontroller (701) is electrically connected with the memory (702), the memory (702) is electrically connected with the wireless communication chip (703), and the microcontroller (701) is provided with a GPIO external interface (704).

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