A portable flaw detection device for rail detection

Abstract

The application discloses a portable flaw detection device for track detection, and belongs to the field of track flaw detection.The portable flaw detection device comprises a flaw detector body, a display is arranged at the top end of the flaw detector body, a handrail is arranged on the outer side wall of the flaw detector body, and front and rear turnover frames are arranged on the two sides of the flaw detector body respectively.The portable flaw detection device is arranged on the track, the nylon wheel is in contact with the top of the track, the flaw detector body moves relative to the first mounting frame under the action of gravity, the second mounting frame moves close to the track by the transmission rod, and the plurality of side guide wheels are in abutment with the rail waist on the two sides of the track, so that the whole device is effectively supported.The device is convenient to operate, the stability of the device during movement on the track is remarkably enhanced, the possibility of shaking and deviation is reduced, the detection accuracy is improved, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] This application relates to the field of track flaw detection technology, specifically a portable flaw detection device for track inspection. Background Technology

[0002] During train operation, the track may develop defects such as cracks, spalling, and fractures due to the repeated action of the train. The increase in internal defects in the castings makes them prone to fracture under fatigue stress, which can affect train operation safety. Therefore, the accuracy of track flaw detection is particularly important.

[0003] Chinese Patent Announcement No. CN216792114U relates to a rail flaw detector with a grinding and washing function. This solution can effectively remove stubborn rust from the surface of the rail; the water sprayed from the nozzle can promptly wash away the dirt remaining after cleaning, which facilitates subsequent ultrasonic testing and improves the accuracy of the test.

[0004] In the above-described flaw detector, when performing flaw detection on the track, the flaw detector is mounted on the track with the two side wheels suspended in the air. The two front and rear tilting frames are then tilted to position the probe at the top of the track. Subsequently, the operator pushes the flaw detector, relying on the two front and rear nylon wheels for overall movement. In strong winds, the flaw detector is prone to swaying from side to side. This swaying may lead to unstable contact between the probe and the track, affecting the accuracy of the detection. In addition, due to the instability of the flaw detector, the operator needs more strength to maintain balance and control the flaw detector, increasing the operator's workload. Therefore, it is necessary to provide a portable flaw detection device for track inspection to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to solve the problems in the prior art and to propose a portable flaw detection device for track inspection.

[0006] A portable flaw detection device for track inspection includes a flaw detector body, a display mounted on the top of the flaw detector body, a handrail mounted on the outer side wall of the flaw detector body, a front tilting frame and a rear tilting frame mounted on both sides of the flaw detector body, probes mounted on the bottom of the flaw detector body, the outer side of the front tilting frame and the outer side of the rear tilting frame, and a support assembly provided at the bottom of the flaw detector body.

[0007] The support assembly includes two first mounting brackets and multiple second mounting brackets. Nylon wheels are rotatably connected to the inner sides of the two first mounting brackets, and side guide wheels are rotatably connected to the inner sides of the multiple second mounting brackets. The two nylon wheels are arranged vertically, and the multiple side guide wheels are arranged horizontally.

[0008] Preferably, both the front and rear tilting frames are rotatably connected to the flaw detector body using bearings, and both the front and rear tilting frames have two land wheels rotatably connected to one end.

[0009] Preferably, the support assembly further includes two first fixing blocks, which are respectively fixed to both sides of the flaw detector body. A connecting column is fixedly connected to the top of the first mounting bracket, and the connecting column passes through the first fixing block and is slidably connected to the first fixing block.

[0010] Preferably, a spring is sleeved around the connecting column, and the two ends of the spring are fixedly connected to the first fixing block and the first mounting bracket, respectively.

[0011] Preferably, a connecting rod is fixedly connected between the two first mounting brackets, and multiple dampers are installed between the connecting rod and the flaw detector body. Multiple sliding rods are fixedly connected to the outer end of the connecting rod, and a support plate is fixedly connected to the top of each of the multiple second mounting brackets. The sliding rod passes through the support plate and is slidably connected to the support plate.

[0012] Preferably, the support assembly further includes a plurality of second fixing blocks, which are respectively fixed to both sides of the flaw detector body. The bottom end of each of the plurality of second fixing blocks is rotatably connected to a transmission rod, and the end of the transmission rod away from the second fixing block is rotatably connected to the second mounting frame.

[0013] The advantages are: The flaw detection equipment provided in this application, by setting the equipment on the track, with the nylon wheels in contact with the top of the track, the flaw detector body will move relative to the first mounting frame under the action of gravity. At this time, the transmission rod is used to make the second mounting frame move closer to the track until multiple side guide wheels abut against the rail webs on both sides of the track, so that the entire equipment is effectively supported, which is convenient to operate, enhances the stability of the equipment when moving on the track, reduces the possibility of shaking and deviation, improves detection accuracy, and reduces the labor intensity of the staff. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the device in this application.

[0015] Figure 2 This is a top view of the device in this application.

[0016] Figure 3 This is a structural schematic diagram of the device from an upward-facing perspective in this application.

[0017] Figure 4 This is a structural diagram of the supporting components.

[0018] In the diagram: 1 Flaw detector body, 2 Display, 3 Handrail, 4 Front tilting frame, 5 Rear tilting frame, 6 Probe, 7 Land wheel, 8 Support assembly, 81 First mounting bracket, 82 Nylon wheel, 83 Spring, 84 First fixing block, 85 Connecting column, 86 Connecting rod, 87 Second fixing block, 88 Transmission rod, 89 Second mounting bracket, 810 Side guide wheel, 811 Support plate, 812 Slide rod. Detailed Implementation

[0019] like Figure 1-4 As shown, this application provides a portable flaw detection device for track inspection, including a flaw detector body 1. The flaw detector body 1 is used to detect and evaluate railway tracks. By using sensors and detection technology, it can detect various defects on the track, such as cracks, fatigue damage, corrosion, fractures, etc. It can perform comprehensive inspection of the track, discover hidden defects, help to find and repair problems early, thereby improving track safety. A display 2 is installed on the top of the flaw detector body 1, a handrail 3 is installed on the outer side of the flaw detector body 1, a front tilting frame 4 and a rear tilting frame 5 are installed on both sides of the flaw detector body 1, and probes 6 are installed on the bottom of the flaw detector body 1, the outer side of the front tilting frame 4 and the outer side of the rear tilting frame 5. A support assembly 8 is provided at the bottom of the flaw detector body 1.

[0020] The support assembly 8 includes two first mounting brackets 81 and multiple second mounting brackets 89. Nylon wheels 82 are rotatably connected to the inner side of each of the two first mounting brackets 81, and side guide wheels 810 are rotatably connected to the inner side of each of the multiple second mounting brackets 89. The two nylon wheels 82 are arranged vertically, and the multiple side guide wheels 810 are arranged horizontally. The multiple side guide wheels 810 can abut against the rail webs on both sides of the track to play a guiding role, ensuring the stability of the equipment during movement, improving the detection accuracy, facilitating the parallel pushing of the equipment, and reducing the workload of the staff.

[0021] Specifically, the device is mounted on a track with two nylon wheels 82 abutting against the top of the track. The front tilting frame 4 and the rear tilting frame 5 are then tilted so that the probe 6 is positioned at the top of the track. The probe 6 is an ultrasonic probe that uses the principle of ultrasonic waves propagating and reflecting in materials to detect defects. The probe 6 emits ultrasonic pulses, and when the beam encounters a defect in the track, some of the energy is reflected back to the probe 6. By analyzing the characteristics of the reflected signal, the location, size, and nature of the defect can be determined. In addition, the flaw detector body 1 is equipped with a display controller, and the display 2 is driven by the display controller. The display controller receives data from the probe 6 and converts it into a format suitable for display. It then sends the converted data to the display 2 so that it can correctly display the detection results. This technology is existing technology.

[0022] In addition, this solution is applicable to monorail testing. The equipment has a compact structure. The front tilting frame 4, rear tilting frame 5, land wheels 7, and support components 8 are made of lightweight materials, such as high-strength plastic or aluminum alloy, which have good corrosion resistance and impact resistance, and are relatively lightweight, thus achieving a portable effect, making it easy to carry and operate.

[0023] Both the front tilting frame 4 and the rear tilting frame 5 are rotatably connected to the flaw detector body 1 by bearings, and two land wheels 7 are rotatably connected to one end of both the front tilting frame 4 and the rear tilting frame 5. The front tilting frame 4 and the rear tilting frame 5 can be tilted so that the probe 6 is located on the top of the track. In addition, the land wheels 7 are used for the movement of the equipment. Both the front tilting frame 4 and the rear tilting frame 5 are fixed to both sides of the flaw detector body 1 by a snap-fit ​​method.

[0024] like Figure 3-4 As shown, the support assembly 8 also includes two first fixing blocks 84, which are fixed to both sides of the flaw detector body 1 respectively. A connecting post 85 is fixedly connected to the top of the first mounting bracket 81. The connecting post 85 passes through the first fixing block 84 and is slidably connected to the first fixing block 84. A spring 83 is sleeved around the connecting post 85. The two ends of the spring 83 are fixedly connected to the first fixing block 84 and the first mounting bracket 81 respectively.

[0025] When the device is installed on the track, the nylon wheel 82 contacts the top of the track. At this time, the flaw detector body 1 will move relative to the first mounting frame 81 under the action of gravity and compress the spring 83.

[0026] A connecting rod 86 is fixedly connected between the two first mounting brackets 81. Multiple dampers are installed between the connecting rod 86 and the flaw detector body 1. Multiple sliding rods 812 are fixedly connected to the outer end of the connecting rod 86. Support plates 811 are fixedly connected to the top of the multiple second mounting brackets 89. The sliding rods 812 pass through the support plates 811 and are slidably connected to the support plates 811. The support assembly 8 also includes multiple second fixing blocks 87. The multiple second fixing blocks 87 are respectively fixed to both sides of the flaw detector body 1. The bottom end of the multiple second fixing blocks 87 is rotatably connected to a transmission rod 88. The end of the transmission rod 88 away from the second fixing block 87 is rotatably connected to the second mounting bracket 89.

[0027] When the equipment is mounted on the track, the nylon wheel 82 contacts the top of the track. Under the influence of gravity, the flaw detector body 1 will move relative to the first mounting frame 81, compressing the spring 83. At this time, the transmission rod 88 will cause multiple second mounting frames 89 to move closer to the track until multiple side guide wheels 810 abut against the rail webs on both sides of the track, ensuring the stability of the equipment during movement and improving detection accuracy. After flaw detection is completed, the operator can lift the equipment upwards. Due to the resilience of the spring 83, the nylon wheel 82 can continue to abut against the top of the track. Under the transmission rod 88, multiple second mounting frames 89 will move away from the track, thus providing space for the equipment to be removed until the equipment is completely detached from the track. The support plate 811 and the sliding rod 812 work together to ensure the stable horizontal movement of the multiple second mounting frames 89.

[0028] In addition, by installing multiple dampers between the connecting rod 86 and the flaw detector body 1, the stability of the flaw detector body 1 during movement can be improved, and the spring 83 will not repeatedly rebound, reducing the possibility of shaking.

[0029] It should be noted that, preferably, the number of the second mounting bracket 89, side guide wheel 810, support plate 811, slide rod 812 and transmission rod 88 is four, and they are symmetrically distributed in pairs.

[0030] In actual operation, when the equipment is mounted on the track, the nylon wheel 82 contacts the top of the track. Under the action of gravity, the flaw detector body 1 will move relative to the first mounting frame 81 and compress the spring 83. At this time, under the transmission action of the transmission rod 88, multiple second mounting frames 89 move closer to the track until multiple side guide wheels 810 abut against the rail webs on both sides of the track, ensuring the stability of the equipment movement and improving the detection accuracy. Then, the front flip frame 4 and the rear flip frame 5 are flipped so that the probe 6 is at the top of the track. The operator pushes the equipment and moves it using the nylon wheel 82, and uses the probe 6 to perform flaw detection on the track. After the flaw detection is completed, the operator can lift the equipment upward. Due to the resilience of the spring 83, the nylon wheel 82 can continue to abut against the top of the track. Under the transmission action of the transmission rod 88, multiple second mounting frames 89 move away from the track, thus reserving space for the removal of the equipment until the equipment is completely separated from the track, completing the flaw detection operation.

[0031] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A portable flaw detection device for track inspection, comprising a flaw detector body (1), characterized in that: The top of the flaw detector body (1) is equipped with a display (2), the outer side wall of the flaw detector body (1) is equipped with a handrail (3), the front flip frame (4) and the rear flip frame (5) are respectively installed on both sides of the flaw detector body (1), the bottom of the flaw detector body (1), the outer side of the front flip frame (4) and the outer side of the rear flip frame (5) are all equipped with probes (6), and the bottom of the flaw detector body (1) is provided with a support assembly (8). The support assembly (8) includes two first mounting brackets (81) and a plurality of second mounting brackets (89). The inner sides of the two first mounting brackets (81) are rotatably connected to nylon wheels (82), and the inner sides of the plurality of second mounting brackets (89) are rotatably connected to side guide wheels (810). The two nylon wheels (82) are arranged vertically, and the plurality of side guide wheels (810) are arranged horizontally. The support assembly (8) further includes two first fixing blocks (84), which are respectively fixed to both sides of the flaw detector body (1). A connecting column (85) is fixedly connected to the top of the first mounting bracket (81), and the connecting column (85) passes through the first fixing block (84) and is slidably connected to the first fixing block (84). A spring (83) is sleeved on the outer part of the connecting column (85), and the two ends of the spring (83) are fixedly connected to the first fixing block (84) and the first mounting bracket (81) respectively. A connecting rod (86) is fixedly connected between the two first mounting brackets (81). Multiple dampers are installed between the connecting rod (86) and the flaw detector body (1). Multiple sliding rods (812) are fixedly connected to the outer end of the connecting rod (86). Support plates (811) are fixedly connected to the top of the multiple second mounting brackets (89). The sliding rods (812) pass through the support plates (811) and are slidably connected to the support plates (811). The support assembly (8) also includes a plurality of second fixing blocks (87), which are respectively fixed to both sides of the flaw detector body (1). The bottom ends of the plurality of second fixing blocks (87) are rotatably connected to transmission rods (88), and the end of the transmission rod (88) away from the second fixing block (87) is rotatably connected to the second mounting bracket (89).

2. The portable flaw detection device for track inspection according to claim 1, characterized in that: Both the front tilting frame (4) and the rear tilting frame (5) are rotatably connected to the flaw detector body (1) by bearings, and both the front tilting frame (4) and the rear tilting frame (5) are rotatably connected to two land wheels (7) at one end.

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