Ultrasonic-based seamless line locking track temperature automatic detection device and use method

Abstract

The application provides an ultrasonic-based seamless line locking rail temperature automatic detection equipment and a use method. The equipment comprises a vehicle body frame plate, a transmission control module, a battery driving module, a measurement and collection module and a processor. The battery driving module comprises a storage battery fixedly installed on the top surface of the vehicle body frame plate, the storage battery provides external power, one side of the storage battery is fixedly installed with a data collection instrument in the measurement and collection module, the data collection instrument collects data through a data collection channel, the processor is fixedly installed above the data collection instrument, the processor receives and processes data transmitted from the data collection instrument, calculates the actual locking rail temperature of the steel rail, and remotely transmits the actual locking rail temperature of the steel rail to a terminal through a wireless communication device in the transmission control module. The equipment has an automatic walking module and an automatic measurement and collection module, a collector can remotely control the detection equipment to start and stop working, and manpower and material resources are saved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of track traffic seamless line detection technology, and in particular to a seamless line locking rail temperature automatic detection equipment based on ultrasonic waves and a use method. BACKGROUND

[0002] Due to the advantages of smooth operation and long service life, most of the high-speed railways and trunk lines in China currently adopt seamless lines. The actual locking rail temperature is an important parameter for the maintenance, repair and management of seamless lines. When the actual locking rail temperature is unknown and blind line maintenance and repair operations are performed, it may cause rail expansion and rail breakage. Therefore, the measurement of the actual locking rail temperature is of great significance to the stability of maintaining seamless lines.

[0003] Currently, the actual locking rail temperature measurement methods in the prior art mainly include strain method and stress method. The strain method directly calculates the locking rail temperature by measuring strain, and the main detection methods include deformation gauge method and observation pile method. The disadvantages of the strain method include: the need to disassemble the fasteners for measurement, which is time-consuming and labor-intensive and has high measurement cost, and the measurement range and measurement accuracy are also affected.

[0004] The stress method is based on the principle that the change of the internal stress of the steel rail will cause the change of some physical parameters of the steel rail. The internal stress tester for measuring the change of the physical parameters is used to measure and calibrate the quantitative relationship between the physical quantity and the stress, so as to indirectly measure the temperature stress of the steel rail. The main detection methods include X-ray method, ultrasonic method, magnetoelastic method and magnetic noise method.

[0005] Most of the actual locking rail temperature detection equipment in the strain method and the stress method in the prior art still needs to be manually operated, and the operation personnel of the maintenance section have a large amount of repetitive work, and the operation efficiency cannot be guaranteed. With the development of high-speed railways, in the face of the actual locking rail temperature detection of seamless lines on long and large bridges and the actual locking rail temperature detection of seamless lines under extreme environmental conditions, how to effectively realize the automatic locking rail temperature has become a problem to be solved. SUMMARY

[0006] Embodiments of the present application provide a seamless line locking rail temperature automatic detection equipment based on ultrasonic waves and a use method to effectively measure the actual locking rail temperature of the seamless line.

[0007] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions.

[0008] According to one aspect of the present application, a seamless line locking rail temperature automatic detection equipment based on ultrasonic waves is provided, comprising: a vehicle body frame plate, a transmission control module, a battery driving module, a measurement and collection module, and a processor.

[0009] The battery driving module comprises a storage battery fixedly installed on the top surface of the vehicle body frame plate, the storage battery provides power to the outside, a data acquisition instrument in the measurement and acquisition module is fixedly installed on one side of the storage battery, the data acquisition instrument acquires data through a data acquisition channel, a processor is fixedly installed above the data acquisition instrument, the processor receives and processes data transmitted by the data acquisition instrument, calculates the actual locking rail temperature of the steel rail, and remotely transmits the actual locking rail temperature of the steel rail to a terminal through a wireless communication device in the transmission control module.

[0010] Preferably, the device further comprises an automatic walking module, the automatic walking module comprises four hub motors installed on both sides of the vehicle body frame plate, the hub motors are connected with the storage battery, a magneto-rotational speed sensor is fixedly installed on the inner side of the hub motor on the left side of the forward direction of the device, and the magneto-rotational speed sensor calculates the running distance of the device by measuring the wheel speed.

[0011] Preferably, the measurement and acquisition module comprises a measurement instrument box, a lifting motor is fixedly installed on the inner side of the front top of the measurement instrument box, the lifting motor is in contact with the switch of the coupling agent container, the coupling agent container is fixedly installed at the bottom of the measurement instrument box through a coupling agent installation frame, a coupling agent laying pipe is connected with the coupling agent container, the lifting motor is controlled to move up and down, thereby controlling the switch of the coupling agent container, and the laying of the coupling agent container on the steel rail is controlled.

[0012] Preferably, a telescopic rod and a driving motor are fixedly installed on the middle top inside the measurement instrument box, the telescopic rod is connected with a lifting rod, the lifting rod is fixedly connected with a ultrasonic transducer instrument installation wedge, and the lifting of the measurement instrument box is controlled.

[0013] The ultrasonic transducer emitter and the ultrasonic transducer receiver are connected with the ultrasonic transducer instrument installation wedge, the stress value is calculated by measuring the propagation time of ultrasonic waves on the surface of the steel rail; an optical distance measuring sensor is fixedly installed on the installation wedge of the ultrasonic transducer emitter, the installation wedge of the ultrasonic transducer instrument is in contact with the surface of the steel rail by measuring the distance from the surface of the steel rail; and an infrared temperature measuring instrument is fixedly installed on the inner bottom of the measurement instrument box, and the actual rail temperature of the steel rail is measured.

[0014] According to another aspect of the present application, a use method of the seamless line locking rail temperature automatic detection device based on ultrasonic waves is provided, comprising:

[0015] The device is placed on the steel rail, the hub motor drives the device to run to a position 1 m in front of the measurement point, the lifting motor moves downward to open the switch of the coupling agent container, the coupling agent is laid on the surface of the steel rail through the coupling agent laying pipe, the trolley continues to run 1 m to the measurement point, the lifting motor rises to close the switch of the coupling agent container, the laying of the coupling agent is stopped, the telescopic rod in the measurement instrument box starts to elongate downward through the driving motor, and the ultrasonic transducer instrument is driven downward through the lifting rod.

[0016] The photoelectric distance sensor starts to operate, the driving motor stops operating when the photoelectric distance sensor measures the falling height so that the ultrasonic transducer instrument mounting wedge is in full contact with the steel rail, the ultrasonic transducer instrument mounting wedge and the steel rail are fixed at the rail surface of the steel rail by the ultrasonic transducer instrument mounting wedge through the ultrasonic transducer transmitter and the ultrasonic transducer receiver, the ultrasonic transducer instrument mounting wedge is laid with a coupling agent between the ultrasonic transducer instrument mounting wedge and the steel rail, the ultrasonic transducer transmitter emits a critical refraction longitudinal wave, the refraction longitudinal wave is longitudinally propagated on the surface of the steel rail, the ultrasonic transducer receiver receives the refraction longitudinal wave, the time difference is calculated by recording the time when the ultrasonic wave reaches the two ultrasonic transducer receivers, the signal delay time of ultrasonic wave transmission and reception is eliminated, and then the corresponding steel rail stress value is calculated;

[0017] The data acquisition instrument measures the temperature value of the steel rail by the infrared temperature measuring instrument, transmits the temperature value to the processor, and calculates the actual locking rail temperature of the measuring point according to the temperature value and the steel rail stress value according to a pre-set algorithm, and transmits the actual locking rail temperature to the terminal through the wireless communication device.

[0018] As can be seen from the technical solutions provided by the above-mentioned embodiments of the present application, the method has an automatic walking module and an automatic measurement and collection module, the collector can remotely control the detection equipment to start and stop working, manpower and material resources are saved, and the technical problem of automatic detection of the actual locking rail temperature of the seamless line can be solved.

[0019] Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following description and the attached drawings. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0021] Figure 1 A schematic diagram of the overall structure of the seamless line locking rail temperature automatic detection equipment based on ultrasonic waves provided by the present application;

[0022] Figure 2 A schematic diagram of the transmission control module and the battery driving module of the seamless line locking rail temperature automatic detection equipment based on ultrasonic waves provided by the present application;

[0023] Figure 3 A schematic diagram of the walking module of the seamless line locking rail temperature automatic detection equipment based on ultrasonic waves provided by the present application;

[0024] Figure 4 A schematic diagram of a seamless track locking rail temperature automatic detection equipment measurement module based on ultrasonic waves is provided for the present application;

[0025] In the figure, the numbers are: 1, rail; 2, vehicle body frame plate; 3, battery; 4, processor; 5, data acquisition instrument; 6, measurement module; 7, wheel hub motor; 8, magneto- electric speed sensor; 601, measurement instrument box; 602, lifting motor; 603, telescopic rod; 604, driving motor; 605, coupling agent installation frame; 606, coupling agent container; 607, coupling agent laying pipe; 608, ultrasonic transducer transmitter; 609, ultrasonic transducer instrument installation wedge; 610, photoelectric distance measuring sensor; 611, lifting rod; 612, ultrasonic transducer receiver; 613, infrared temperature measuring instrument. DETAILED DESCRIPTION

[0026] The embodiments of the present application will be described in detail below with reference to the drawings, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are for the purpose of explaining the present application only and should not be construed as limiting the present application.

[0027] Those skilled in the art can understand that, unless specifically stated otherwise, the singular forms "a," "an," and "the" as used herein include plural referents. It should further be understood that the word "comprising" as used in the specification herein, is used to mean the presence of stated features, integers, steps, operations, elements, and / or components, but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when we say an element is "connected" or "coupled" to another element, it can be directly connected or coupled to the other element, or there can be intervening elements between them. In addition, "connected" or "coupled" as used herein can include wireless connection or coupling. The word "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. It should also be understood that terms such as those defined in a general dictionary should be understood to have meanings consistent with those in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless otherwise defined as such.

[0029] In order to facilitate the understanding of the embodiments of the present application, the following will be further explained and described with several specific examples in conjunction with the drawings, and each embodiment does not constitute a limitation on the embodiments of the present application.

[0030] The seamless line locking rail temperature automatic detection equipment based on ultrasonic waves provided by the embodiment of the present application has the overall structure as shown in Figure 1 The seamless line locking rail temperature automatic detection equipment based on ultrasonic waves provided by the embodiment of the present application has the overall structure as shown in

[0031] Figure 2 The transmission control module and the battery driving module of the seamless line locking rail temperature automatic detection equipment based on ultrasonic waves provided by the embodiment of the present application are shown in Figure 2 The transmission control module and the battery driving module of the seamless line locking rail temperature automatic detection equipment based on ultrasonic waves provided by the embodiment of the present application are shown in

[0032] Figure 3 The running module of the seamless line locking rail temperature automatic detection equipment based on ultrasonic waves provided by the embodiment of the present application is shown in Figure 3 The running module of the seamless line locking rail temperature automatic detection equipment based on ultrasonic waves provided by the embodiment of the present application is shown in

[0033] Figure 4 The measurement and collection module of the seamless line locking rail temperature automatic detection equipment based on ultrasonic waves provided by the embodiment of the present application is shown in Figure 4 The measurement and collection module of the seamless line locking rail temperature automatic detection equipment based on ultrasonic waves provided by the embodiment of the present application is shown in

[0034] The middle top of the measuring instrument box 601 is fixedly installed with a telescopic rod 603 and a driving motor 604. The telescopic rod 603 is connected with a lifting rod 611, which controls the lifting of the measuring instrument. The lifting rod 611 is fixedly connected with an ultrasonic transducer instrument mounting wedge 609. An ultrasonic transducer transmitter 608 and an ultrasonic transducer receiver 612 are connected with the ultrasonic transducer instrument mounting wedge 609. The stress value is calculated by measuring the propagation time of ultrasonic waves on the surface of the rail 1. An optical distance sensor 610 is fixedly installed on the mounting wedge of the ultrasonic transducer transmitter 608. The ultrasonic transducer instrument mounting wedge 609 is in contact with the surface of the rail 1 by measuring the distance from the surface of the rail 1. An infrared temperature measuring instrument 613 is fixedly installed on the inner bottom of the measuring instrument box 601, which measures the actual rail temperature of the rail 1.

[0035] The working principle of the above-mentioned seamless line locking rail temperature automatic detection equipment based on ultrasonic waves includes: when in use, the equipment is placed on the rail 1, the battery is turned on, and the mileage of the measurement point is input on the remote terminal. After completion, the wheel hub motor 7 drives the equipment to automatically travel to the area of the measurement point. When traveling to the area of the measurement point 1m in advance, the equipment stops, the lifting motor 2 moves downward to open the switch of the coupling agent container 606, and the equipment continues to advance 1m to the designated measurement point. The coupling agent is laid on the surface of the rail through the coupling agent laying pipe 607. When the equipment reaches the designated measurement point, the equipment stops, the lifting motor 602 rises to close the coupling agent container switch, stops laying the coupling agent, and the telescopic rod 603 in the measuring instrument box 601 starts to elongate downward through the driving motor 604, which drives the ultrasonic transducer instrument downward through the lifting rod 611. At the same time, the optical distance sensor starts to operate. When the measured descending height makes the ultrasonic transducer instrument mounting wedge 609 completely contact with the rail 1, the driving motor 604 stops running. At this time, the ultrasonic transducer transmitter 608 and the ultrasonic transducer receiver 612 are both fixed on the rail surface of the rail 1 through the ultrasonic transducer instrument mounting wedge 609, and the ultrasonic transducer instrument mounting wedge 609 is laid with the coupling agent between the rail 1. The ultrasonic transducer transmitter 608 emits a critical refraction longitudinal wave, which propagates longitudinally on the surface of the rail 1. The ultrasonic transducer receiver 612 receives the refraction longitudinal wave. By recording the time when the ultrasonic wave reaches the two ultrasonic transducer receivers 612, the time difference is calculated, the signal delay time of ultrasonic wave transmission and reception is eliminated, and then the corresponding rail stress value is calculated. The infrared temperature measuring instrument 613 measures the actual temperature of the rail 1. The detection result is received by the data acquisition instrument 5, transmitted to the processor 4, calculated according to the pre-set algorithm to calculate the actual locking rail temperature of the rail 1 at the measurement point, and transmitted to the terminal through the wireless communication device. The wheel hub motor 7 drives the equipment to the next measurement point for work.

[0036] In summary, the seamless line locking rail temperature automatic detection equipment based on ultrasonic waves has an automatic walking module and an automatic measurement and collection module, and the collector can remotely control the detection equipment to start and stop working, thereby saving manpower and resources.

[0037] The device adopts an ultrasonic transducer transmitter and two ultrasonic transducer receivers, improves the measurement accuracy, and can solve the technical problem of automatic detection of the actual locking rail temperature of the seamless line.

[0038] Those skilled in the art can understand that the drawings are only schematic diagrams of an embodiment, and the modules or flows in the drawings are not necessarily required to implement the present application.

[0039] From the above description of the embodiments, those skilled in the art can clearly understand that the present application can be implemented by means of software and the necessary general hardware platform. Based on this understanding, the technical solutions of the present application can be embodied in the form of a software product, which can be stored in a storage medium, such as a ROM / RAM, a magnetic disk, an optical disk, etc., and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in various embodiments or some parts of the embodiments.

[0040] Each embodiment in the specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment mainly describes the differences from other embodiments. In particular, for the device or system embodiments, since they are basically similar to the method embodiments, they are described more simply, and the relevant parts can be referred to the part of the method embodiments. The above-described device and system embodiments are only schematic, and the units described as separate components can be or can not be physically separated, and the components displayed as units can be or can not be physical units, i.e., they can be located in one place, or can be distributed on multiple network units. According to actual needs, part or all of the modules can be selected to achieve the purpose of the present embodiment. Those skilled in the art can understand and implement without creative labor.

[0041] The above merely describes preferred specific embodiments of the present application, but the protection scope of the present application is not limited thereto, any changes or replacements within the technical scope disclosed by the present application, which can be easily thought by those skilled in the art, should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An automatic rail temperature detection device for seamless track locking based on ultrasonic waves, characterized in that, include: Vehicle body frame plate, transmission control module, battery drive module, measurement and acquisition module, and processor; The battery drive module includes a battery fixedly installed on the top surface of the vehicle frame plate, which provides power to the outside. A data acquisition instrument in the measurement and acquisition module is fixedly installed on one side of the battery. The data acquisition instrument collects data through a data acquisition channel. A processor is fixedly installed above the data acquisition instrument. The processor receives and processes the data transmitted from the data acquisition instrument, calculates the actual locking temperature of the rail, and remotely transmits the actual locking temperature of the rail to the terminal through the wireless communication device in the transmission control module. The measurement and acquisition module includes a measuring instrument box. A lifting motor is fixedly installed on the top front of the inner side of the measuring instrument box. The lifting motor is in contact with the switch of the coupling agent container. The coupling agent container is fixed to the bottom of the measuring instrument box through the coupling agent mounting frame. The coupling agent laying pipe is connected to the coupling agent container. The lifting motor is controlled to move up and down, thereby controlling the switch of the coupling agent container and controlling the laying of the coupling agent container on the rail. A telescopic rod and a drive motor are fixedly installed in the top center of the measuring instrument box. The telescopic rod is connected to a lifting rod to control the lifting of the measuring instrument box. The lifting rod is fixedly connected to the ultrasonic transducer mounting wedge. Both the ultrasonic transducer transmitter and the ultrasonic transducer receiver are connected to the ultrasonic transducer mounting wedge. The stress value is calculated by measuring the propagation time of the ultrasonic wave on the rail surface. The photoelectric distance sensor is fixedly installed on the mounting wedge of the ultrasonic transducer transmitter. The distance between the sensor and the rail surface is measured to make the mounting wedge of the ultrasonic transducer contact the rail surface. The infrared temperature measuring instrument is fixedly installed on the bottom inside the measuring instrument box to measure the actual rail temperature. The method of using the ultrasonic-based seamless track locking rail temperature automatic detection device includes: The equipment is placed on the rails, and the hub motor drives the equipment to travel to 1m in front of the measurement point area. The lifting motor moves downward to open the switch of the coupling agent container. The coupling agent is laid on the surface of the rails through the coupling agent laying pipe. The trolley continues to move forward 1m to the measurement point. The lifting motor rises to close the switch of the coupling agent container, stopping the laying of coupling agent. The telescopic rod in the measuring instrument box begins to extend downward through the drive motor. The lifting rod drives the ultrasonic transducer to move downward. The photoelectric ranging sensor starts operating. When the descent height measured by the photoelectric ranging sensor causes the ultrasonic transducer mounting wedge to fully contact the rail, the drive motor stops running. The ultrasonic transducer transmitter and ultrasonic transducer receiver are fixed to the rail surface through the ultrasonic transducer mounting wedge. Coupling agent is laid between the ultrasonic transducer mounting wedge and the rail. The ultrasonic transducer transmitter emits a critically refracted longitudinal wave that propagates longitudinally on the rail surface. The ultrasonic transducer receiver receives the refracted longitudinal wave. By recording the time when the ultrasonic wave arrives at the two ultrasonic transducer receivers, the time difference is calculated, the signal delay time of ultrasonic wave transmission and reception is eliminated, and then the corresponding rail stress value is calculated. The data acquisition instrument measures the temperature value of the rail using an infrared temperature measuring instrument and transmits the temperature value to the processor. The processor calculates the actual locked rail temperature at the measuring point according to the temperature value and the rail stress value using a pre-set algorithm, and transmits the actual locked rail temperature to the terminal via a wireless communication device.

2. The device according to claim 1, characterized in that, The device also includes an automatic walking module, which includes four hub motors installed on both sides of the vehicle frame plate. The hub motors are connected to the battery. A magnetoelectric speed sensor is fixedly installed on the inner side of the hub motor on the left side of the device's forward direction. The magnetoelectric speed sensor calculates the device's travel distance by measuring the wheel speed.

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