Device and method for inhibiting vertical jumping of detection wheel of rail flaw detection car

Abstract

The invention discloses a device and a method for inhibiting vertical jumping of a detection wheel of a rail flaw detection vehicle. The device comprises a detection wheel vertical unit and a mechanical wheel assembly, the detection wheel vertical unit comprises a detection wheel mounting seat and a flexible ultrasonic detection wheel; the flexible ultrasonic detection wheel is fixed on a detection wheel mounting seat; the detection wheel mounting seat is connected with an adjusting screw rod mounting seat in the mechanical wheel assembly; the mechanical wheel assembly comprises a rigid mechanical wheel, a mechanical wheel mounting frame, an adjusting screw rod and an adjusting screw rod mounting seat; the rigid mechanical wheel is rotatably mounted on the mechanical wheel mounting frame; the adjusting screw rod mounting seat is connected with the mechanical wheel mounting frame through an adjusting screw rod; and the rigid mechanical wheel and the flexible ultrasonic detection wheel in the detection wheel vertical unit form a parallel structure through a detection wheel mounting seat. The inhibition effect of the vertical jumping of the detection wheel of the rail flaw detection vehicle can be enhanced, and the detection data quality is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of rail detection, and in particular to a device and method for suppressing vertical vibration of a detection wheel of a rail flaw detection vehicle. Background Art

[0002] This section is intended to provide a background or context to the embodiments of the invention that are recited in the claims. No statement herein is admitted to be prior art by virtue of its inclusion in this section.

[0003] Currently, rail flaw detection vehicles are used to conduct periodic inspections of in-service rails to meet the demand for rapid inspection of in-service rails, playing a significant role in ensuring the safety of rails on in-service lines. During rapid inspections, the rail flaw detection system emits ultrasonic waves at varying repetition frequencies to scan the rails. The faster the inspection speed, the higher the required ultrasonic emission repetition frequency. During rapid inspections, the ultrasonic wheel continuously rolls on the rail tread and, under the action of a vertical cylinder, maintains downward pressure on the rail tread, thereby maintaining the contact area between the ultrasonic wheel and the rail tread. During inspections, the ultrasonic wheel is prone to vertical vibration due to factors such as track unevenness and vehicle vibration. Rapid inspections, in particular, can cause abnormal vertical vibration of the ultrasonic wheel, resulting in excessive vertical downward pressure, unstable ultrasonic detection signals, and impacted test data quality.

[0004] In the existing technology, when rail flaw detection vehicles are performing rapid inspections, due to factors such as track unevenness and vehicle vibration, the flexible ultrasonic probe wheel is prone to abnormal vertical vibration, resulting in unstable contact area between it and the rail tread, which in turn causes fluctuations in the ultrasonic detection signal and a decrease in data quality. The effect of suppressing the vertical vibration of the flaw detection vehicle's probe wheel is limited, and it is difficult to meet the stability requirements in high-speed inspection scenarios. Summary of the Invention

[0005] The embodiment of the present invention provides a device for suppressing the vertical vibration of the probe wheel of a rail flaw detection vehicle, which is used to enhance the suppression effect of the vertical vibration of the probe wheel of the rail flaw detection vehicle and improve the quality of detection data. The device includes: a vertical probe wheel unit and a mechanical wheel assembly; wherein,

[0006] The probe wheel vertical unit includes a probe wheel mounting seat and a flexible ultrasonic probe wheel; the flexible ultrasonic probe wheel is fixed on the probe wheel mounting seat, and the probe wheel mounting seat is connected to the adjustment screw mounting seat in the mechanical wheel assembly;

[0007] The mechanical wheel assembly includes a rigid mechanical wheel, a mechanical wheel mounting frame, an adjusting screw and an adjusting screw mounting seat; the rigid mechanical wheel is rotatably mounted on the mechanical wheel mounting frame; the adjusting screw mounting seat is connected to the mechanical wheel mounting frame through the adjusting screw; the rigid mechanical wheel and the flexible ultrasonic probe wheel in the probe wheel vertical unit form a parallel structure through the probe wheel mounting seat.

[0008] An embodiment of the present invention further provides a method for suppressing vertical runout of a rail flaw detection vehicle's probe wheel, for enhancing the suppression effect of vertical runout of the rail flaw detection vehicle's probe wheel and improving the quality of detection data. The method comprises:

[0009] Obtain vertical displacement data of the flexible ultrasonic probe wheel and contact pressure data between the rigid mechanical wheel and the rail tread collected by the sensor;

[0010] According to the vertical displacement data of the flexible ultrasonic probe wheel, the downward pressure value of the vertical cylinder in the probe wheel vertical unit is calculated;

[0011] According to the downward force value and the contact pressure data between the rigid mechanical wheel and the rail tread, the vertical position of the rigid mechanical wheel is adjusted so that the rigid mechanical wheel and the rail tread maintain a preset contact state.

[0012] An embodiment of the present invention also provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the method for suppressing the vertical vibration of the wheel of a rail flaw detection vehicle is implemented.

[0013] An embodiment of the present invention further provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, the method for suppressing vertical vibration of the wheel of a rail flaw detection vehicle is implemented.

[0014] An embodiment of the present invention further provides a computer program product, which includes a computer program. When the computer program is executed by a processor, it implements the above-mentioned method for suppressing the vertical vibration of the detection wheel of the rail flaw detection vehicle.

[0015] In an embodiment of the present invention, a rigid mechanical wheel in a mechanical wheel assembly is rotatably mounted on a mechanical wheel mounting frame, and an adjusting screw mounting seat in the mechanical wheel assembly is connected to the mechanical wheel mounting frame via an adjusting screw. A flexible ultrasonic probe wheel is fixed to the probe wheel mounting seat, which is connected to the adjusting screw mounting seat in the mechanical wheel assembly. The flexible ultrasonic probe wheel in the probe wheel vertical unit and the rigid mechanical wheel in the mechanical wheel assembly are connected in parallel via the probe wheel mounting seat. The rigid mechanical wheel limits the vertical runout of the flexible ultrasonic probe wheel, thereby enhancing the vertical runout suppression effect of the rail flaw detection vehicle probe wheel and improving the quality of detection data. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0017] Figure 1 The front and side views of the device for suppressing vertical vibration of the detection wheel of a rail flaw detection vehicle according to an embodiment of the present invention are shown;

[0018] Figure 2 This is a structural diagram of a flaw detection support mechanism in an embodiment of the present invention;

[0019] Figure 3 The front view and side view of the vertical unit of the probe wheel in the embodiment of the present invention;

[0020] Figure 4 1. The front view and side view of the mechanical wheel assembly in the embodiment of the present invention;

[0021] Figure 5 Flowchart of a method for suppressing vertical vibration of a rail flaw detection vehicle wheel in an embodiment of the present invention;

[0022] Figure 6 Schematic diagram of a computer device in an embodiment of the present invention. DETAILED DESCRIPTION

[0023] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. Here, the exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but are not intended to limit the present invention.

[0024] Figure 1 The front and side views of the device for suppressing the vertical vibration of the wheel of a rail flaw detection vehicle in an embodiment of the present invention are shown. The device includes: a vertical wheel unit and a mechanical wheel assembly; wherein,

[0025] The probe wheel vertical unit includes a probe wheel mounting seat and a flexible ultrasonic probe wheel; the flexible ultrasonic probe wheel is fixed on the probe wheel mounting seat, and the probe wheel mounting seat is connected to the adjustment screw mounting seat in the mechanical wheel assembly;

[0026] The mechanical wheel assembly includes a rigid mechanical wheel, a mechanical wheel mounting frame, an adjusting screw and an adjusting screw mounting seat; the rigid mechanical wheel is rotatably mounted on the mechanical wheel mounting frame; the adjusting screw mounting seat is connected to the mechanical wheel mounting frame through the adjusting screw; the rigid mechanical wheel and the flexible ultrasonic probe wheel in the probe wheel vertical unit form a parallel structure through the probe wheel mounting seat.

[0027] like Figure 1 As shown in the specific embodiment, the vertical wheel probe unit is further installed with a mechanical wheel assembly on the basis of the flexible ultrasonic wheel probe. The mechanical wheel assembly can be installed on the front or rear side of the flexible ultrasonic wheel probe. The further installed vertical wheel probe unit is set on the flaw detection support mechanism and keeps slight contact with the rail, such as Figure 2 As shown, Figure 2 2 is a structural diagram of the flaw detection support mechanism in an embodiment of the present invention.

[0028] Figure 3 These are the main view and side view of the vertical unit of the probe wheel in an embodiment of the present invention. In one embodiment, the vertical unit of the probe wheel also includes a vertical cylinder, a vertical guide rail and a vertical slider; the vertical slider is connected to the probe wheel mounting seat, and the vertical cylinder is used to apply downward pressure to the vertical slider, so that the vertical slider drives the flexible ultrasonic probe wheel and the rigid mechanical wheel to move vertically synchronously along the vertical guide rail.

[0029] In one embodiment, the adjusting screw mounting seat is connected to the probe wheel mounting seat through a U-shaped notch and is fixed by bolts.

[0030] In one embodiment, the head end of the adjusting screw is fixed to the adjusting screw mounting base, and the tail end of the adjusting screw is connected to the mechanical wheel mounting frame to form an adjustable rigid support structure. The contact pressure between the rigid mechanical wheel and the rail tread is changed by rotating the adjusting screw, and the adjusted position is fixed by a locking bolt.

[0031] In one embodiment, a thread structure is provided on the surface of the adjusting screw, and the adjusting screw is screwed together with nuts on the adjusting screw mounting seat and the mechanical wheel mounting frame through the thread structure.

[0032] Figure 4 The figures are the main view and side view of the mechanical wheel assembly in the embodiment of the present invention. In the specific embodiment, the rigid mechanical wheel is mounted on the mechanical wheel mounting frame, and the rigid mechanical wheel can rotate along its axis. The front end of the adjusting screw is connected to the adjusting screw mounting seat, and the rear end is connected to the mechanical wheel mounting frame. The vertical distance between the adjusting screw mounting seat and the mechanical wheel mounting frame can be adjusted and locked by the adjusting screw. The adjusting screw mounting seat is installed with the probe wheel mounting seat through a U-shaped notch and fixed with bolts. By adjusting the screw and the mounting seat, the vertical height of the rigid mechanical wheel can be flexibly adjusted to adapt to different rail surface conditions, ensuring the continuous effectiveness of slight contact and avoiding the risk of overpressure or loss of contact.

[0033] The rigid mechanical wheel is connected to the probe wheel mounting bracket via an adjustment screw and a screw mounting bracket, forming a parallel structure with the flexible ultrasonic probe wheel. The end of a vertical cylinder is connected to the probe wheel mounting bracket. The extension and retraction of the vertical cylinder drives the probe wheel mounting bracket up and down, adjusting the vertical displacement of the flexible ultrasonic probe wheel and the rigid mechanical wheel relative to the rail. The rigid mechanical wheel restrains the flexible ultrasonic probe wheel, preventing it from exerting excessive vertical pressure.

[0034] In one embodiment, the adjusting screw is used to adjust the vertical height of the rigid mechanical wheel and control the contact pressure between the rigid mechanical wheel and the rail tread.

[0035] In a specific embodiment, the diameter of the rigid mechanical wheel is smaller than that of the flexible ultrasonic probe wheel, allowing it to maintain slight contact with the rail during normal operation. Furthermore, the rigid mechanical wheel in the mechanical wheel assembly can be made of high-hardness nylon. When the rigid mechanical wheel surface contacts the rail tread, frictional resistance is generated to further stabilize the vertical displacement of the flexible ultrasonic probe wheel and suppress its vertical runout.

[0036] The present invention also provides a method for suppressing vertical runout of a rail flaw detection vehicle's wheel probe, as described in the following embodiments. Because the principles of this method are similar to those of the method for suppressing vertical runout of a rail flaw detection vehicle's wheel probe, the implementation of this method can be referenced to the implementation of the method for suppressing vertical runout of a rail flaw detection vehicle's wheel probe, and any repetitive details will not be repeated.

[0037] Figure 5 This is a flow chart of a method for suppressing vertical vibration of a rail flaw detection vehicle wheel in an embodiment of the present invention. The method includes:

[0038] Step 501, obtaining vertical displacement data of the flexible ultrasonic probe wheel and contact pressure data between the rigid mechanical wheel and the rail tread collected by the sensor;

[0039] Step 502, calculating the downward pressure value of the vertical cylinder in the vertical unit of the flexible ultrasonic probe wheel based on the vertical displacement data of the probe wheel;

[0040] Step 503: adjusting the vertical position of the rigid mechanical wheel according to the downward force value and the contact pressure data between the rigid mechanical wheel and the rail tread, so that the rigid mechanical wheel and the rail tread maintain a preset contact state.

[0041] In a specific embodiment, the steps for installing a rigid mechanical wheel on the wheel-probe vertical unit are as follows:

[0042] Step 1: With the vertical cylinder in the retracted state, lift the flexible ultrasonic probe wheel, adjust the screw to minimize the distance between the rigid mechanical wheel and the adjusting screw mounting bracket, and then install the mechanical wheel assembly onto the probe wheel vertical unit.

[0043] Step 2: Adjust the vertical cylinder downward pressure to set the vertical downward pressure of the ultrasonic probe wheel.

[0044] The vertical cylinder is in the extended state, and the flexible ultrasonic probe wheel is lowered to the rail tread. The rail flaw detection system is used to measure the 0-degree interface wave sound path of the flexible ultrasonic probe wheel, and the telescopic stroke of the vertical cylinder is adjusted until the 0-degree interface wave sound path meets the rail flaw detection requirements, and the pressure of the vertical cylinder is locked at this time.

[0045] Step 3: Adjust the vertical height of the rigid mechanical wheel so that it maintains slight contact with the rail tread.

[0046] After the vertical height of the flexible ultrasonic probe wheel is set, loosen the upper bolt of the adjusting screw in the mechanical wheel assembly, lower the rigid mechanical wheel to the rail tread, keep it in slight contact with the rail tread, and then tighten the upper bolt of the adjusting screw in the mechanical wheel assembly.

[0047] Step 4: During the rapid detection process, the vertical vibration of the flexible ultrasonic probe wheel is suppressed by the rigid mechanical wheel, without the need to dynamically adjust the vertical cylinder pressure.

[0048] After the vertical position of the rigid mechanical wheel is statically set, the rigid mechanical wheel makes slight contact with the rail tread. During rapid rail flaw detection operations, the flexible ultrasonic probe wheel is prone to vertical vibration due to factors such as track unevenness and vehicle vibration. When the flexible ultrasonic probe wheel jumps upward due to vibration, its vertical displacement can be partially suppressed by the vertical cylinder pressure; when the flexible ultrasonic probe wheel jumps downward due to vibration, the rigid mechanical wheel contacts the rail tread to limit its downward displacement, and the rigid mechanical wheel maintains stable contact with the rail under the action of the vertical cylinder, avoiding vertical oscillation of the flexible ultrasonic probe wheel. If the pressure of the coupling fluid inside the ultrasonic probe wheel decreases due to the enlargement of the flexible outer membrane of the ultrasonic probe wheel or partial leakage of the coupling fluid during the detection process, the contact between the rigid mechanical wheel and the rail tread can also prevent the vertical downward pressure of the flexible ultrasonic probe wheel from continuing to increase, resulting in poor detection data quality.

[0049] An embodiment of the present invention further provides a computer device, Figure 6 This is a schematic diagram of a computer device in an embodiment of the present invention. The computer device 600 includes a memory 610, a processor 620, and a computer program 630 stored in the memory 610 and executable on the processor 620. When the processor 620 executes the computer program 630, the method for suppressing the vertical vibration of the wheel of a rail flaw detection vehicle is implemented.

[0050] An embodiment of the present invention further provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, the method for suppressing vertical vibration of the wheel of a rail flaw detection vehicle is implemented.

[0051] An embodiment of the present invention further provides a computer program product, which includes a computer program. When the computer program is executed by a processor, it implements the above-mentioned method for suppressing the vertical vibration of the detection wheel of the rail flaw detection vehicle.

[0052] In an embodiment of the present invention, a rigid mechanical wheel in a mechanical wheel assembly is rotatably mounted on a mechanical wheel mounting frame, and an adjusting screw mounting seat in the mechanical wheel assembly is connected to the mechanical wheel mounting frame via an adjusting screw. A flexible ultrasonic probe wheel is fixed to the probe wheel mounting seat, which is connected to the adjusting screw mounting seat in the mechanical wheel assembly. The flexible ultrasonic probe wheel in the probe wheel vertical unit and the rigid mechanical wheel in the mechanical wheel assembly are connected in parallel via the probe wheel mounting seat. The rigid mechanical wheel limits the vertical runout of the flexible ultrasonic probe wheel, thereby enhancing the vertical runout suppression effect of the rail flaw detection vehicle probe wheel and improving the quality of detection data.

[0053] It will be understood by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Thus, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0054] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowcharts and / or block diagrams, as well as combinations of processes and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowcharts and / or block diagrams. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0055] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0056] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0057] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for suppressing vertical vibration of the detection wheel of a rail flaw detection vehicle, characterized in that: include: Probe wheel vertical unit and mechanical wheel assembly; wherein, The probe wheel vertical unit includes a probe wheel mounting seat and a flexible ultrasonic probe wheel; the flexible ultrasonic probe wheel is fixed on the probe wheel mounting seat, and the probe wheel mounting seat is connected to the adjustment screw mounting seat in the mechanical wheel assembly; The mechanical wheel assembly includes a rigid mechanical wheel, a mechanical wheel mounting frame, an adjusting screw and an adjusting screw mounting seat; the rigid mechanical wheel is rotatably mounted on the mechanical wheel mounting frame; the adjusting screw mounting seat is connected to the mechanical wheel mounting frame through the adjusting screw; the rigid mechanical wheel and the flexible ultrasonic probe wheel in the probe wheel vertical unit form a parallel structure through the probe wheel mounting seat.

2. The device according to claim 1, wherein The vertical unit of the probe wheel also includes a vertical cylinder, a vertical guide rail and a vertical slider; the vertical slider is connected to the probe wheel mounting seat, and the vertical cylinder is used to apply downward pressure to the vertical slider, so that the vertical slider drives the flexible ultrasonic probe wheel and the rigid mechanical wheel to move vertically synchronously along the vertical guide rail.

3. The device according to claim 1, wherein The adjusting screw mounting seat is connected to the probe wheel mounting seat through a U-shaped notch and is fixed by bolts.

4. The device according to claim 1, wherein The head end of the adjusting screw is fixed on the adjusting screw mounting seat, and the tail end of the adjusting screw is connected to the mechanical wheel mounting frame to form an adjustable rigid support structure.

5. The device according to claim 1, wherein The surface of the adjusting screw is provided with a thread structure, and the adjusting screw is screwed tightly with the adjusting screw mounting seat and the nut on the mechanical wheel mounting frame through the thread structure.

6. The device according to claim 1, wherein The adjusting screw is used to adjust the vertical height of the rigid mechanical wheel and control the contact pressure between the rigid mechanical wheel and the rail tread.

7. A method for suppressing vertical vibration of a rail flaw detection vehicle wheel according to any one of claims 1 to 6, characterized in that: include: Obtain vertical displacement data of the flexible ultrasonic probe wheel and contact pressure data between the rigid mechanical wheel and the rail tread collected by the sensor; According to the vertical displacement data of the flexible ultrasonic probe wheel, the downward pressure value of the vertical cylinder in the probe wheel vertical unit is calculated; According to the downward force value and the contact pressure data between the rigid mechanical wheel and the rail tread, the vertical position of the rigid mechanical wheel is adjusted so that the rigid mechanical wheel and the rail tread maintain a preset contact state; wherein, the vertical position of the rigid mechanical wheel is adjusted by rotating the adjusting screw, and the adjusting screw is connected to the mechanical wheel mounting frame and the adjusting screw mounting seat.

8. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the method according to claim 7 is implemented.

9. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method according to claim 7 is implemented.

10. A computer program product, characterized in that The computer program product comprises a computer program, and when the computer program is executed by a processor, the method according to claim 7 is implemented.

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