Nondestructive testing device for track spikes

Abstract

The utility model discloses a nondestructive testing device for track spikes, which comprises a fixing tool, lifting detection equipment and a track detection vehicle, and the fixing tool is arranged on the track detection vehicle; the lifting detection equipment comprises a lifting mechanism and an electromagnetic ultrasonic detection pen which are connected, the lifting mechanism is connected with the fixing tool, and the lifting mechanism is used for controlling the electromagnetic ultrasonic detection pen to ascend and descend in the vertical direction so that the electromagnetic ultrasonic detection pen can make contact with the upper surface of the spike. According to the utility model, the electromagnetic ultrasonic detection pen is arranged, so that detection can be carried out under the condition that the spikes are not damaged, the damage to the spikes is avoided, and the detection safety is improved; according to the utility model, the electromagnetic ultrasonic detection pen is connected with the lifting mechanism, so that the stress condition and damage of the track spike can be detected and diagnosed, the labor intensity of manual operation is greatly reduced, the detection difficulty is reduced, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of railway maintenance machinery, in particular to a track spike nondestructive testing device. Background Art

[0002] As an important transportation network in China, the stability of the track structure of high-speed railways is directly related to the safety of train operation. As a key component in the track structure, the detection of the stress and potential damage of track spikes is of great significance for preventing track failures and accidents. At present, the detection of track spikes on high-speed railways mainly relies on manually operated torque wrenches for torque inspection and force supplement. This method is a commonly used technical means in track maintenance to ensure the stability and safety of the spikes.

[0003] However, the existing rail spike inspection is difficult to operate, and the use of a torque wrench is manual, labor-intensive, and requires high operating skills. Traditional methods are slow to detect and are difficult to adapt to the maintenance needs of the rapid development of high-speed railways, especially when the inspection window period is short; at the same time, manual inspection is subjective and may lead to missed inspections, increasing safety risks. In addition, during the process of applying stress, the torque wrench may cause irreversible effects on the spike body, and these potential hazards cannot be assessed. Utility Model Content

[0004] In view of the above problems, the utility model aims to provide a nondestructive detection device for track spikes, which can nondestructively and efficiently detect and diagnose the stress conditions and potential damage of track spikes.

[0005] The technical solution of the utility model is as follows:

[0006] A non-destructive testing device for rail spikes, comprising a fixed tool, a lifting testing device and a rail testing vehicle, wherein the fixed tool is arranged on the rail testing vehicle;

[0007] The lifting detection device includes a lifting mechanism and an electromagnetic ultrasonic detection pen connected to each other. The lifting mechanism is connected to the fixed tooling and is used to control the electromagnetic ultrasonic detection pen to lift and lower in a vertical direction so that the electromagnetic ultrasonic detection pen contacts the upper surface of the road spike.

[0008] Preferably, the lifting mechanism adopts an electric push rod, including a driving motor, a push rod, a nut and a screw rod. The top end of the driving motor is connected to the fixed tooling, the screw rod is connected to the output shaft of the driving motor, the nut is sleeved on the screw rod, the push rod is connected to the nut, and one end of the push rod is connected to the top of the electromagnetic ultrasonic detection pen.

[0009] Preferably, a connecting piece is provided on the top of the electromagnetic ultrasonic detection pen, and the push rod is connected to the connecting piece by a screw.

[0010] Preferably, a limit switch is provided in the lifting mechanism for monitoring the stroke of the push rod.

[0011] Preferably, a speed reduction mechanism is provided between the output shaft of the drive motor and the screw rod.

[0012] Preferably, the track inspection vehicle includes a crossbeam, a support rod, a first diagonal rod and a second diagonal rod, the support rod is arranged in the width direction of the crossbeam and is symmetrically arranged about the crossbeam; one end of the first diagonal rod is connected to one end of the support rod, and the other end of the first diagonal rod is connected to the crossbeam; one end of the second diagonal rod is connected to one end of the support rod, and the other end of the second diagonal rod is connected to the crossbeam.

[0013] Preferably, the second diagonal rod and the first diagonal rod are arranged symmetrically with respect to the crossbeam.

[0014] Preferably, the fixing tool is arranged on the support rod; the fixing tool includes an upper connecting plate and an L-shaped connecting plate, the upper connecting plate includes a first layer plate and a second layer plate that are rotatably connected; one end of the second layer plate is connected to one end of the first layer plate, the second layer plate is arranged below the first layer plate, the length of the second layer plate is less than the length of the first layer plate, one end of the long side of the L-shaped connecting plate is connected to one end of the second layer plate, and the distance between the lower surface of the first layer plate and the upper surface of the short side of the L-shaped connecting plate is equal to the height of the support rod.

[0015] Preferably, the fixed tool is provided with a magnet, the track inspection vehicle is made of magnetic material, and the fixed tool is magnetically adsorbed on the track inspection vehicle.

[0016] Preferably, it further comprises a control mechanism, which is arranged on the fixed tooling and is electrically connected to the electromagnetic ultrasonic detection pen and the lifting mechanism.

[0017] The beneficial effects of the utility model are:

[0018] 1. The utility model can control the electromagnetic ultrasonic detection pen to detect road spikes by setting a lifting mechanism, which greatly reduces the labor intensity of manual operation, improves detection efficiency, and prevents missed detection;

[0019] 2. The utility model is provided with an electromagnetic ultrasonic detection pen, which can perform detection without damaging the road spikes, thus improving the safety of detection;

[0020] 3. The utility model realizes the rapid installation of the lifting detection equipment by setting the fixed tooling, simplifies the deployment and movement of the lifting detection equipment, and improves the flexibility and efficiency of the detection work. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 It is a structural schematic diagram of the lifting detection equipment of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the track spike non-destructive testing device of the utility model;

[0024] Figure 3 It is a structural schematic diagram of the lifting mechanism of the utility model.

[0025] Numbers in the figure: 1-fixed tooling, 101-upper connecting plate, 102-L-shaped connecting plate, 103-magnet; 2-lifting detection equipment, 201-lifting mechanism, 2011-driving motor, 2012-connecting piece, 2013-speed reduction mechanism, 2014-push rod, 202-electromagnetic ultrasonic detection pen; 3-railway spikes; 4-track inspection vehicle, 401-crossbeam, 402-support rod, 403-first diagonal rod, 404-second diagonal rod. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0027] It should be noted that, in the absence of conflict, the embodiments in this application and the technical features in the embodiments may be combined with each other.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0029] In the present invention, unless otherwise stated, the terms "first", "second", etc. are used to distinguish similar objects, rather than to describe a specific order or sequence. The terms used in this way should be understood; the terms "upper", "lower", "left", "right", etc. are usually used in relation to the directions shown in the drawings, or in relation to the components themselves in the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "inner", "outer", etc. refer to the inside and outside relative to the outline of each component itself. However, the above-mentioned directional words are not used to limit the present invention.

[0030] like Figure 1-3 As shown, a non-destructive testing device for rail spikes includes a fixed tool 1, a lifting testing device 2 and a rail testing vehicle 4, wherein the fixed tool 1 is arranged on the rail testing vehicle 4;

[0031] The lifting detection device 2 includes a lifting mechanism 201 and an electromagnetic ultrasonic detection pen 202 connected to each other. The lifting mechanism 201 is connected to the fixed tooling 1. The lifting mechanism 201 is used to control the electromagnetic ultrasonic detection pen 202 to lift and lower in the vertical direction so that the electromagnetic ultrasonic detection pen 202 contacts the upper surface of the road spike 3.

[0032] In a specific embodiment, the lifting mechanism 201 adopts an electric push rod, including a driving motor 2011, a push rod 2014, a nut and a screw rod. The top of the driving motor 2011 is connected to the fixed tooling, the screw rod is connected to the output shaft of the driving motor 2011, the nut is sleeved on the screw rod, the push rod 2014 is connected to the nut, and one end of the push rod 2014 is connected to the top of the electromagnetic ultrasonic detection pen. A connecting piece 2012 is provided at the top of the electromagnetic ultrasonic detection pen 202, and the push rod 2014 is connected to the connecting piece 2012 by a screw. A limit switch is provided in the lifting mechanism 201 for monitoring the stroke of the push rod 2014. A speed reduction mechanism 2013 is provided between the output shaft of the driving motor 2011 and the screw rod. The limit switch is electrically connected to the control mechanism.

[0033] In the above embodiment, by providing the track inspection vehicle 4, the fixed tool 1 and the lifting inspection device 2, efficient and accurate inspection of the track spike 3 can be achieved. The electromagnetic ultrasonic inspection pen 202 uses electromagnetic ultrasonic technology to accurately diagnose the stress conditions and potential damage of the track spike 3, such as axial force, cracks, corrosion or other defects; it can collect data on the state of the spike 3, which is essential for evaluating the integrity of the spike 3 and determining maintenance requirements.

[0034] By providing the deceleration mechanism 2013, the output torque can be increased, while the movement speed can be reduced, thereby improving the control accuracy. The combination of the screw rod and the deceleration mechanism 2013 provides a smooth and accurate movement control of the push rod 2014. By providing the limit switch, the push rod 2014 is prevented from exceeding the stroke, thereby avoiding mechanical damage and potential safety risks. The limit switch can monitor the stroke of the push rod 2014, and stop the drive motor 2011 when it reaches a preset position, thereby ensuring the safety of the detection process.

[0035] It should be noted that the use of the electromagnetic ultrasonic detection pen 202 for non-contact measurement is an existing technology, and the specific structure and detection principle of the electromagnetic ultrasonic detection pen 202 will not be repeated here.

[0036] In addition, the lifting mechanism 201 in the above embodiment is only a preferred structure of the present invention. In addition to the structure of the present invention, other reciprocating lifting mechanisms in the prior art can also be applied to the present invention.

[0037] In a specific embodiment, the track inspection vehicle 4 includes a crossbeam 401, a support rod 402, a first oblique rod 403 and a second oblique rod 404. The support rod 402 is arranged in the width direction of the crossbeam 401 and is symmetrically arranged with respect to the crossbeam 401; one end of the first oblique rod 403 is connected to one end of the support rod 402, and the other end of the first oblique rod 403 is connected to the crossbeam 401; one end of the second oblique rod 404 is connected to one end of the support rod 402, and the other end of the second oblique rod 404 is connected to the crossbeam 401. The second oblique rod 404 and the first oblique rod 403 are symmetrically arranged with respect to the crossbeam 401.

[0038] The fixed fixture 1 is arranged on the support rod 402; the fixed fixture 1 includes an upper connecting plate 101 and an L-shaped connecting plate 102, the upper connecting plate 101 includes a first layer plate and a second layer plate connected in rotation; one end of the second layer plate is connected to one end of the first layer plate, the second layer plate is arranged below the first layer plate, the length of the second layer plate is less than the length of the first layer plate, one end of the long side of the L-shaped connecting plate 102 is connected to one end of the second layer plate, and the distance between the lower surface of the first layer plate and the upper surface of the short side of the L-shaped connecting plate 102 is equal to the height of the support rod 402. The fixed fixture 1 is provided with a magnet 103, the track inspection vehicle 4 is made of magnetic material, and the fixed fixture 1 is magnetically adsorbed on the track inspection vehicle 4. The first layer plate is provided with a plurality of openings that pass through from top to bottom, and the magnet 103 is arranged in the openings.

[0039] In the above embodiment, by setting up the track inspection vehicle 4, a mobile platform is provided, which can carry various inspection equipment and instruments to perform inspection work along the rails; equipped with an automated inspection device, such as the electromagnetic ultrasonic inspection pen 202, the track inspection vehicle 4 can automatically inspect track facilities such as track spikes 3; compared with manual inspection, the track inspection vehicle 4 can cover a longer track distance in a short time, greatly improving the inspection efficiency; reducing the need for manual inspection, reducing labor costs and labor intensity. In addition, the track inspection vehicle 4 of the above embodiment is only a preferred structure of the utility model. In addition to the structure of the utility model, other track inspection vehicles in the prior art can also be applied to the utility model.

[0040] By setting up the fixed tool 1, a stable support platform is provided for key components such as the electromagnetic ultrasonic detection pen 202 and the lifting mechanism 201; the fixed tool 1 ensures that the detection device can be accurately positioned at a specific position of the track spike 3 for effective detection; the fixed tool 1 is used to be quickly and conveniently installed on the track detection vehicle 4, simplifying the deployment process of the detection device; the magnet 103 on the fixed tool 1 enables it to be firmly adsorbed on the track detection vehicle 4, providing a connection method that does not require additional fasteners.

[0041] By designing the fixing tool 1 as a connected upper connecting plate 101 and an L-shaped connecting plate 102, the upper connecting plate 101 includes a first layer plate and a second layer plate that are rotatably connected, and the first layer plate can be rotated up and down to adjust the distance between the first layer plate and the short side of the L-shaped connecting plate 102, so that the fixing tool 1 can be more conveniently clamped to the rail car, simplifying the installation process of the entire detection device.

[0042] In a specific embodiment, it further includes a control mechanism, which is disposed on the fixed tooling 1 and is electrically connected to the electromagnetic ultrasonic detection pen 202 and the lifting mechanism 201 .

[0043] When using the utility model to detect the track spike 3, first ensure that the track detection vehicle 4 is parked in a proper position and the detection area is safe; check whether the magnet 103 on the fixed tool 1 can match the magnetic material of the track detection vehicle 4, and ensure that the magnetic strength of the magnet 103 is sufficient to adsorb the fixed tool 1;

[0044] Then, the fixed tool 1 is installed to the designated position of the track inspection vehicle 4 by magnetic adsorption, and it is confirmed that the lifting inspection device 2 is correctly installed on the fixed tool 1. Specifically, the operation button on the electromagnetic ultrasonic inspection pen 202 is reserved, and the height of the electromagnetic ultrasonic inspection pen 202 is adjusted to ensure that it can contact the spike 3 within the travel range of the lifting mechanism 201; after determining the detection height, the coupling strength of the lifting mechanism 201 is adjusted to 30N;

[0045] Then, the control mechanism controls the driving motor 2011 to drive the push rod 2014 to descend, so that the electromagnetic ultrasonic detection pen 202 can be aligned with and contact the upper surface of the road spike 3. The electromagnetic ultrasonic detection pen 202 is coupled with the road spike 3, and the electromagnetic ultrasonic detection pen 202 is started to start detecting the road spike 3. The detection time is 1 minute. During the detection process, the data provided by the electromagnetic ultrasonic detection pen 202 is collected to evaluate the stress condition and potential damage of the road spike 3. After completing the detection of one road spike 3, the control mechanism controls the electromagnetic ultrasonic detection pen 202 to rise and leave the surface of the road spike 3.

[0046] Move the track inspection vehicle 4 to the next spike 3 position and repeat the above inspection steps; record the inspection data of each spike 3 and perform subsequent analysis to determine the status of the spike 3 and whether maintenance is required. After completing the inspection of all spikes 3, turn off the electromagnetic ultrasonic inspection pen 202 and the control mechanism, and remove the equipment from the track inspection vehicle 4; finally, perform necessary maintenance on the inspection device, such as cleaning, inspection and calibration, and then properly store it for next use.

[0047] The utility model realizes the detection of the road spike 3 without human intervention, reduces manual operation, and reduces labor intensity. The utility model has high detection efficiency, reduces the possibility of missed detection, and is suitable for scenes with heavy high-speed rail detection tasks and short effective time.

[0048] It should be noted that the control mechanism used to control the operation of the driver and the device is an existing technology, and the specific structure and control principle of the control mechanism will not be repeated here.

[0049] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A non-destructive testing device for track spikes, characterized in that: It includes fixed tooling, lifting detection equipment and a track detection vehicle, wherein the fixed tooling is arranged on the track detection vehicle; The lifting detection device includes a lifting mechanism and an electromagnetic ultrasonic detection pen connected to each other. The lifting mechanism is connected to the fixed tooling and is used to control the electromagnetic ultrasonic detection pen to lift and lower in a vertical direction so that the electromagnetic ultrasonic detection pen contacts the upper surface of the road spike.

2. The track spike nondestructive testing device according to claim 1, characterized in that: The lifting mechanism adopts an electric push rod, including a driving motor, a push rod, a nut and a screw rod. The top end of the driving motor is connected to the fixed tooling, the screw rod is connected to the output shaft of the driving motor, the nut is sleeved on the screw rod, the push rod is connected to the nut, and one end of the push rod is connected to the top of the electromagnetic ultrasonic detection pen.

3. The track spike nondestructive testing device according to claim 2, characterized in that: A connecting piece is arranged on the top of the electromagnetic ultrasonic detection pen, and the push rod is connected to the connecting piece through a screw.

4. The track spike nondestructive testing device according to claim 2, characterized in that: A limit switch is arranged in the lifting mechanism to monitor the stroke of the push rod.

5. The track spike nondestructive testing device according to claim 2, characterized in that: A speed reduction mechanism is arranged between the output shaft of the driving motor and the screw rod.

6. The track spike nondestructive testing device according to claim 1, characterized in that: The track inspection vehicle includes a crossbeam, a support rod, a first diagonal rod and a second diagonal rod, wherein the support rod is arranged in the width direction of the crossbeam and is symmetrically arranged about the crossbeam; one end of the first diagonal rod is connected to one end of the support rod, and the other end of the first diagonal rod is connected to the crossbeam; one end of the second diagonal rod is connected to one end of the support rod, and the other end of the second diagonal rod is connected to the crossbeam.

7. The track spike nondestructive testing device according to claim 6, characterized in that: The second oblique rod and the first oblique rod are symmetrically arranged with respect to the crossbeam.

8. The track spike nondestructive testing device according to claim 6, characterized in that: The fixing tool is arranged on the support rod; the fixing tool includes an upper connecting plate and an L-shaped connecting plate, the upper connecting plate includes a first layer plate and a second layer plate that are rotatably connected; one end of the second layer plate is connected to one end of the first layer plate, the second layer plate is arranged below the first layer plate, the length of the second layer plate is less than the length of the first layer plate, one end of the long side of the L-shaped connecting plate is connected to one end of the second layer plate, and the distance between the lower surface of the first layer plate and the upper surface of the short side of the L-shaped connecting plate is equal to the height of the support rod.

9. The track spike nondestructive testing device according to claim 1, characterized in that: The fixed tooling is provided with a magnet, the track inspection vehicle is made of magnetic material, and the fixed tooling is magnetically adsorbed on the track inspection vehicle.

10. The track spike nondestructive testing device according to any one of claims 1 to 9, characterized in that: It also includes a control mechanism, which is arranged on the fixed tooling and is electrically connected to the electromagnetic ultrasonic detection pen and the lifting mechanism.

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