Detection device for steel rail

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By introducing strain gauge and positioning measurement device into the detection device, the problem that existing detectors cannot detect all sections of the track is solved, and the accurate acquisition of track wear data is achieved, ensuring the safety of track operation.

CN222460629UActive Publication Date: 2025-02-11CHINA RAILWAY ENG CONSULTING GRP CO LTD

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Patent Information

Application Number: CN202421200367.3
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-05-29
Publication Date: 2025-02-11
Estimated Expiration: 2034-05-29

AI Technical Summary

Technical Problem

Existing detectors cannot detect all sections of the track, resulting in the problem of not obtaining accurate data on track wear.

Method used

A detection device for steel rails is designed, including a strain gauge and a positioning measuring device provided on a mobile device. The strain gauge is arranged on the roller to detect the contact point between the mobile device and the test piece; the positioning and measuring device is arranged at the bottom end of the mobile device, and moves along the test area through the mobile device to position and measure all sections of the test piece.

Benefits of technology

Through the common configuration of the strain gauge and the positioning measurement device, all cross-sections of the track can be accurately detected, solving the problem that existing detectors cannot obtain accurate track wear data and ensuring safety during track operation.

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Abstract

The utility model provides a detection device for a steel rail, and relates to the technical field of track engineering detection. The device is characterized in that a strain gauge is arranged on a moving device, the strain gauge is circumferentially arranged on a roller of the moving device, and the strain gauge is used for detecting a contact point of the moving device and a test piece; the positioning measurement device is arranged at the bottom end of the moving device, one end of the positioning measurement device extends out of the side wall of the moving device, the other end of the positioning measurement device extends to the ground, and the moving device drives the positioning measurement device to move along the test area. And the positioning and measuring device is used for positioning the test piece and measuring the section condition of the test piece. The device solves the problems that an existing detector cannot detect all cross sections of a track, the abrasion condition is judged through detection data, and accurate track abrasion data cannot be obtained. And the safety of the track in the running process is ensured.

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Description

Technical Field

[0001] The utility model relates to the technical field of track engineering detection, in particular to a detection device for rails. Background Art

[0002] In the existing track engineering detection technology, detectors are generally used for detection. The existing detectors cannot detect all sections of the track, and the wear condition is judged by the detection data. This leads to the problem that the track cannot obtain accurate wear conditions. Therefore, there is an urgent need for a detection device for rails, which solves the problem that the existing detectors cannot detect all sections of the track, and the wear condition is judged by the detection data, resulting in the inability to obtain accurate track wear data. Safety during track operation is ensured. Utility Model Content

[0003] The purpose of the utility model is to provide a detection device for rails to improve the above problems. In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0004] A detection device for rails, comprising: a strain gauge is arranged on the mobile device, the strain gauge is circumferentially arranged on the roller of the mobile device, and the strain gauge is used to detect the contact point between the mobile device and a test piece; a positioning and measuring device, the positioning and measuring device is arranged on the bottom end of the mobile device, one end of the positioning and measuring device extends outward from the side wall of the mobile device, and the other end of the positioning and measuring device extends toward the ground, the mobile device drives the positioning and measuring device to move along a test area, and the positioning and measuring device positions the test piece and measures the cross-sectional condition of the test piece.

[0005] Preferably, the positioning and measuring device comprises a lateral sensor, a side of which is connected to the bottom of the mobile device, the lateral sensor is arranged laterally along the length direction of the mobile device, and one end of the lateral sensor extends outward from the side wall of the mobile device.

[0006] Preferably, the positioning and measuring device comprises a vertical sensor, the top end of the vertical sensor is connected to the bottom end of the moving device, the bottom end of the vertical sensor extends toward the ground, and the side surface of the vertical sensor contacts the other end surface of the lateral sensor.

[0007] Preferably, the positioning measurement device includes a relationship measurement sensor, the top end of the relationship measurement sensor is connected to the bottom end of the mobile device, the bottom end of the relationship measurement sensor extends toward the ground, and the relationship measurement sensor and the vertical sensor are arranged in parallel along the width direction of the mobile device.

[0008] Preferably, the measuring end of the lateral sensor and the measuring end of the vertical sensor are both 10 cm away from the test piece.

[0009] Preferably, the positioning measurement device comprises a positioning detector, a side surface of the positioning detector is connected to the bottom end of the mobile device, and the positioning detector and the lateral sensor are horizontally arranged along the width direction of the mobile device.

[0010] Preferably, the moving device comprises a workbench, the roller is connected to the workbench via a connecting shaft, the wall surface of the roller is arranged on the end surface of the test piece, and the roller and the positioning detector are arranged in parallel along the length direction of the workbench.

[0011] Preferably, at least two strain gauges are arranged on the outer wall of the roller, all the strain gauges are evenly distributed along the circumference of the roller, and the strain gauges are fixedly connected to the roller.

[0012] Preferably, two adjacent strain gauges are arranged vertically.

[0013] The beneficial effects of this structure are:

[0014] The utility model introduces a strain gauge and a positioning measurement device. The strain gauge is arranged on the roller of the mobile device. The strain gauge contacts the test piece, and the specific contact position with the test piece is judged by the contact point. The positioning measurement device is arranged under the mobile device. The positioning measurement device moves along the test area through the mobile device, and the positioning measurement device measures all track sections. The setting of the positioning measurement device solves the problem that the existing detector cannot detect all cross-sections of the track, and the wear condition is judged by the detection data, resulting in the inability to obtain accurate data on track wear. The joint setting of the strain gauge and the positioning measurement device ensures the safety of the track during operation.

[0015] Other features and advantages of the utility model will be described in the following description, and some of them will become obvious from the description, or be understood by implementing the embodiments of the utility model. The purpose and other advantages of the utility model can be achieved and obtained by the structures specifically pointed out in the written description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a front view of the overall device of the utility model;

[0018] Figure 2 It is a bottom view of the structure of the mobile device and the positioning and measuring device of the utility model;

[0019] Markings in the figure:

[0020] 1. Mobile device; 2. Strain gauge; 3. Positioning measurement device; 4. Control structure; 5. Display; 11. Roller; 12. Workbench; 31. Lateral sensor; 32. Vertical sensor; 33. Relationship measurement sensor; 34. Positioning detector. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model for protection, but merely represents the selected embodiment of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0022] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of the present utility model, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0023] like Figure 1As shown, a detection device for rails comprises: a strain gauge 2 is arranged on the mobile device 1, the strain gauge 2 is circumferentially arranged on the roller 11 of the mobile device 1, and the strain gauge 2 is used to detect the contact point between the mobile device 1 and the test piece; a positioning and measuring device 3 is arranged on the bottom end of the mobile device 1, one end of the positioning and measuring device 3 extends outward from the side wall of the mobile device 1, and the other end of the positioning and measuring device 3 extends toward the ground, the mobile device 1 drives the positioning and measuring device 3 to move along the test area, and the positioning and measuring device 3 positions the test piece and measures the cross-sectional condition of the test piece. In this structure, when the mobile device 1 moves along the test area and the roller 11 rotates, the contact point between the strain gauge 2 and the test piece changes, and the strain gauge 2 detects the moving distance through the change of the contact point. The positioning and measuring device 3 determines the displacement of each point of the test piece from the positioning and measuring device 3 and the cross-sectional condition of the test piece through the emitted light beam and the returned light signal, thereby solving the problem that the existing detector cannot detect all cross-sections of the track, and the wear condition is determined by the detection data, resulting in the inability to obtain accurate track wear data. The joint setting of the strain gauge 2 and the positioning and measuring device 3 makes the data detected by the positioning and measuring device 3 more accurate, ensuring the safety of the track during operation.

[0024] like Figure 2 As shown, the positioning and measuring device 3 includes a transverse sensor 31, the side of which is connected to the bottom of the mobile device 1, and the transverse sensor 31 is arranged transversely along the length direction of the mobile device 1, and one end of the transverse sensor 31 extends outward from the side wall of the mobile device 1. The detection end of the transverse sensor 31 is arranged at the top of the test piece, and the transverse sensor 31 is used to detect the cross-sectional condition of the top of the test piece.

[0025] Furthermore, the positioning and measuring device 3 includes a vertical sensor 32, the top of which is connected to the bottom of the mobile device 1, the bottom of which extends toward the ground, and the side of the vertical sensor 32 contacts the other end of the transverse sensor 31. The detection end of the vertical sensor 32 is arranged on the side wall of the test piece, and the vertical sensor 32 is used to detect the complete transverse profile of the rail of the test piece. Preferably, the transverse sensor 31 and the vertical sensor 32 are both linear laser sensors.

[0026] In this structure, the positioning measurement device 3 includes a relationship measurement sensor 33, the top of which is connected to the bottom of the mobile device 1, the bottom of which extends toward the ground, and the relationship measurement sensor 33 and the vertical sensor 32 are arranged in parallel along the width direction of the mobile device 1. The relationship measurement sensor 33 detects the transverse profile of part of the rail of the test piece, and the control structure 4 puts the repeated segments of the rail profile detected by the vertical sensor 32 and the relationship measurement sensor 33 into a unified coordinate system for mapping, and analyzes the relative position relationship between the complete test piece and the roller 11 to obtain the actual contact point.

[0027] Preferably, the measuring end of the lateral sensor 31 and the measuring end of the vertical sensor 32 are both 10 cm away from the test piece.

[0028] In the present invention, the positioning and measuring device 3 includes a positioning detector 34, the side of which is connected to the bottom of the mobile device 1, and the positioning detector 34 and the lateral sensor 31 are arranged horizontally along the width direction of the mobile device 1. The test piece is provided with a positioning structure. The positioning detector 34 continuously photographs the surface of the test piece on the one hand, and determines whether the test piece has surface damage through the image. On the other hand, the positioning detector 34 positions the test piece by photographing the positioning structure. When the positioning detector 34 passes through a specific section, the profile data of the test piece is recorded, and linear interpolation is performed according to the data of the specific section to achieve the purpose of continuous measurement. Preferably, the positioning detector 34 is a high-definition camera.

[0029] To clarify the specific structure of the mobile device 1, the mobile device 1 includes a workbench 12, the roller 11 is connected to the workbench 12 through a connecting shaft, the wall surface of the roller 11 is set on the end surface of the test piece, and the roller 11 and the positioning detector 34 are set parallel to the length direction of the workbench 12.

[0030] In the utility model, no less than two strain gauges 2 are arranged on the outer wall of the roller 11, and all the strain gauges 2 are evenly distributed along the circumference of the roller 11, and the strain gauges 2 are fixedly connected to the roller 11. The strain gauge 2 has strain only at the contact part, and the position of the contact point of the strain gauge 2 changes through the rotation of the roller 11, reflecting the change of the contact point of each test area. At the same time, since the strain of some of the strain gauges 2 that are not in contact with the test piece is 0, the distance traveled by the mobile device 1 is detected by calculating the interval between the strain gauges 2 where the strain appears according to the strain data interval. Preferably, the strain gauge 2 is strip-shaped. Furthermore, two adjacent strain gauges 2 are arranged vertically.

[0031] In this structure, a control structure 4 and a display 5 are also included. The bottom of the control structure 4 is connected to the middle of the top of the mobile device 1, and the top of the control structure 4 is connected to the display 5. The display 5 and the positioning measurement device 3 are both electrically connected to the control structure 4. The control structure 4 includes a system power supply, a computer host, an information output device and a controller. Preferably, the display 5 is a touch screen.

[0032] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

[0033] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A detection device for rails, characterized in that: include: A mobile device (1), wherein a strain gauge (2) is arranged on the mobile device (1), the strain gauge (2) is circumferentially arranged on a roller (11) of the mobile device (1), and the strain gauge (2) is used to detect a contact point between the mobile device (1) and a test piece; A positioning and measuring device (3), wherein the positioning and measuring device (3) is arranged at the bottom end of the mobile device (1), one end of the positioning and measuring device (3) extends outward from the side wall of the mobile device (1), and the other end of the positioning and measuring device (3) extends toward the ground, the mobile device (1) drives the positioning and measuring device (3) to move along the test area, and the positioning and measuring device (3) positions the test piece and measures the cross-sectional condition of the test piece.

2. The detection device for rails according to claim 1, characterized in that: The positioning measurement device (3) comprises a lateral sensor (31), the side of the lateral sensor (31) is connected to the bottom end of the mobile device (1), the lateral sensor (31) is arranged transversely along the length direction of the mobile device (1), and one end of the lateral sensor (31) extends outside the side wall of the mobile device (1).

3. The detection device for rails according to claim 2, characterized in that: The positioning measurement device (3) comprises a vertical sensor (32), the top end of the vertical sensor (32) is connected to the bottom end of the mobile device (1), the bottom end of the vertical sensor (32) extends toward the ground, and the side surface of the vertical sensor (32) contacts the other end surface of the lateral sensor (31).

4. The detection device for rails according to claim 3, characterized in that: The positioning measurement device (3) comprises a relationship measurement sensor (33), the top end of the relationship measurement sensor (33) is connected to the bottom end of the mobile device (1), the bottom end of the relationship measurement sensor (33) extends toward the ground, and the relationship measurement sensor (33) and the vertical sensor (32) are arranged in parallel along the width direction of the mobile device (1).

5. The detection device for rails according to claim 3, characterized in that: The measuring end of the lateral sensor (31) and the measuring end of the vertical sensor (32) are both 10 cm away from the test piece.

6. The detection device for rails according to claim 2, characterized in that: The positioning measurement device (3) comprises a positioning detector (34), the side of which is connected to the bottom of the mobile device (1), and the positioning detector (34) and the lateral sensor (31) are arranged horizontally along the width direction of the mobile device (1).

7. The detection device for rails according to claim 6, characterized in that: The moving device (1) comprises a workbench (12), the roller (11) is connected to the workbench (12) via a connecting shaft, the wall surface of the roller (11) is arranged on the end surface of the test piece, and the roller (11) and the positioning detector (34) are arranged in parallel along the length direction of the workbench (12).

8. The detection device for rails according to claim 7, characterized in that: No less than two strain gauges (2) are arranged on the outer wall of the roller (11), all the strain gauges (2) are evenly distributed along the circumference of the roller (11), and the strain gauges (2) are fixedly connected to the roller (11).

9. The detection device for rails according to claim 8, characterized in that: The two adjacent strain gauges (2) are arranged vertically.

10. The detection device for rails according to claim 1, characterized in that: It also includes a control structure (4) and a display (5), wherein the bottom end of the control structure (4) is connected to the middle of the top end of the mobile device (1), the top end of the control structure (4) is connected to the display (5), and the display (5) and the positioning measurement device (3) are both electrically connected to the control structure (4).