A track detection device

Abstract

The application discloses a track detection device, which comprises a transverse piece arranged on a track in a direction perpendicular to the track, a driving piece arranged on the transverse piece, two first sliding blocks connected with the transverse piece through a bidirectional transmission structure, a detection block sleeved on the track and connected with the first sliding blocks through a reciprocating movement structure, a displacement detection piece for measuring the distance of the movement of the detection block relative to the first sliding blocks, a limiting block connected with the detection block through a connecting piece, a movable cross bar in sliding connection with the limiting block, an elastic piece arranged between the movable cross bar and the limiting block at one end close to the track, and a measuring piece for measuring the movement of the movable cross bar relative to the limiting block. The track detection device can accurately detect the deviation and deformation of two tracks respectively and can meet the detection requirements of tracks with different distances.

Description

Technical Field

[0001] This invention relates to the field of track inspection technology, and in particular to a track inspection device. Background Technology

[0002] In existing cold rolling mills, finished steel strips need to be loaded and transported using specialized trolleys. To ensure stability during transport, tracks are typically installed on the ground, allowing the trolleys to move smoothly along them. However, the prolonged operation of trolleys carrying heavy steel strips on these tracks subjects them to significant forces over time. The movement of the trolleys also generates vibrations, which can cause sections of the track to shift or deform after a period of time. If not addressed promptly, this can easily lead to safety accidents during transport. Existing track inspection equipment is mostly sensor-based. While these devices offer high accuracy, their installation is cumbersome, requiring a considerable amount of time to mount on the track trolley. Furthermore, to maintain accuracy, the trolley must move at an extremely slow speed, resulting in low inspection efficiency and inconvenient operation.

[0003] In view of this, it is necessary to design a track detection device to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a track detection device that can accurately detect the offset and deformation of two tracks respectively, and can meet the detection requirements of tracks with different spacing.

[0005] To achieve the above-mentioned objectives, the present invention provides a track detection device, comprising: A transverse component is arranged on the track in a direction perpendicular to the track, and a driving component is provided on the transverse component to drive the transverse component to move in the track direction; The first slider, the two first sliders are connected to the transverse component through a bidirectional transmission structure, so that the two first sliders can move coaxially relative to each other or opposite to each other in a direction perpendicular to the track. A detection block is fitted onto the track. The detection block is connected to the first slider via a reciprocating moving structure, allowing the detection block to move relative to the first slider in a direction perpendicular to the track. A displacement detection element is used to measure the distance the detection block moves relative to the first slider; The limit block is connected to the detection block via a connector; The movable crossbar is slidably connected to the limiting block, so that the movable crossbar can move relative to the limiting block in a direction perpendicular to the track; an elastic element is provided between the end of the movable crossbar near the track and the limiting block, so that when the elastic element is in a compressed state, the end of the movable crossbar near the track is attached to the side of the track. The measuring element is used to measure the movement of the movable crossbar relative to the limit block.

[0006] As a further improvement of the present invention, the driving member is located in the middle of the transverse member along the direction perpendicular to the track.

[0007] As a further improvement of the present invention, the bidirectional transmission structure includes a bidirectional screw disposed on the transverse member and rotatable relative to the transverse member, and a drive mechanism for driving the bidirectional screw to rotate, wherein the bidirectional screw is provided with two threaded sections with opposite directions of rotation.

[0008] As a further improvement of the present invention, the two sliders are respectively connected to two threaded sections with opposite directions of rotation on the bidirectional screw.

[0009] As a further improvement of the present invention, the reciprocating moving structure includes a one-way screw disposed on the first slider and rotatable relative to the first slider, and a second slider located on the one-way screw.

[0010] As a further improvement of the present invention, the second slider is fixed to the top of the detection block.

[0011] As a further improvement of the present invention, the detection block is a frame with openings on the bottom surface and two sides perpendicular to the track direction; the frame is provided with a roller structure inside to facilitate the movement of the frame along the track.

[0012] As a further improvement of the present invention, the measuring element is a sensor used to measure the degree of deformation of an elastic element.

[0013] As a further improvement of the present invention, the measuring element is a marker element disposed at the end of the movable crossbar away from the track.

[0014] As a further improvement of the present invention, a roller is provided at the end of the movable crossbar near the track.

[0015] The beneficial effects of this invention are: 1. This invention connects the first slider to the transverse component through a bidirectional transmission structure, enabling the two first sliders to move synchronously towards or away from the transverse component, thus meeting the detection requirements of tracks with different spacings. At the same time, by using a reciprocating movement structure to connect the detection block to the first slider, the first slider can be used as an indicator to determine the degree of track deviation by detecting the distance the detection block moves relative to the first slider.

[0016] 2. The present invention uses the first slider as the intermediate connecting component between the detection block and the transverse component, which can simultaneously realize the accurate detection of the two tracks and avoid the two tracks interfering with each other during the detection process, thus affecting the accuracy of the detection results.

[0017] 3. This invention achieves this by slidably connecting the movable crossbar to the limiting block, and by connecting the end of the movable crossbar near the track to the limiting block via an elastic element. The limiting block compresses the elastic element, causing the end of the movable crossbar near the track to adhere to the track side. Deformation of the track side then moves the movable crossbar, and the measurement results from the measuring element determine whether track deformation has occurred. Furthermore, by connecting the limiting block to the detection block via a connector, the limiting block and the detection block maintain the same distance during the detection process. Even if the track shifts, the end of the movable crossbar near the track remains in contact with the track side, allowing track shift detection and deformation detection to be performed simultaneously without interference. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the track detection device of the present invention.

[0019] Figure 2 This is a schematic diagram of the track detection device from another perspective.

[0020] Figure 3 This is a schematic diagram of the bidirectional transmission structure and its driving components.

[0021] Figure 4 This is a schematic diagram of a reciprocating moving structure.

[0022] Figure 5 This is a schematic diagram of the structure of the first slider, the detection block, and the deformation detection structure on the side of the track.

[0023] Figure Labels 10. Horizontal component; 11. Driving component; 111. Handle; 12. First groove; 21. Bidirectional screw; 22. Driving mechanism; 30. First slider; 31. Second groove; 32. Horizontal through hole; 41. Unidirectional screw; 42. Second slider; 43. Encoder; 50. Detection block; 51. Roller structure; 60. Limiting block; 61. Sleeve frame; 71. Threaded rod; 72. Knob; 80. Movable crossbar; 81. Elastic component; 82. Roller; 83. Marking component; 84. Snap ring; 85. Connecting plate; 90. Track. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] It should also be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0026] Additionally, it should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] like Figure 1 , Figure 2 and Figure 5 As shown, the present invention provides a track detection device, comprising: A transverse member 10 is disposed on the track 90 in a direction perpendicular to the track 90, and a driving member 11 is disposed on the transverse member 10 to drive the transverse member 10 to move in the direction of the track 90. The first slider 30 and the two first sliders 30 are connected to the transverse member 10 through a bidirectional transmission structure, so that the two first sliders 30 can move coaxially relative to each other or away from each other in a direction perpendicular to the track 90. The detection block 50 is sleeved on the track 90. ​​The detection block 50 is connected to the first slider 30 through a reciprocating moving structure, so that the detection block 50 can move relative to the first slider 30 in a direction perpendicular to the track 90. The displacement detection element is used to measure the distance that the detection block 50 moves relative to the first slider 30. The detection block 50, the first slider 30 and the displacement detection element together form a track offset detection structure. The limit block 60 is connected to the detection block 50 via a connector; The movable crossbar 80 is slidably connected to the limiting block 60, so that the movable crossbar 80 can move relative to the limiting block 60 in a direction perpendicular to the track 90; an elastic element 81 is also provided between the end of the movable crossbar 80 near the track 90 and the limiting block 60, so that when the elastic element 81 is in a compressed state, the end of the movable crossbar 80 near the track 90 is attached to the side of the track 90. The measuring element is used to measure the movement of the movable crossbar 80 relative to the limiting block 60. The limiting block 60, the movable crossbar 80 and the measuring element together form a track side deformation detection structure.

[0028] For example, the driving component 11 is a pull rod connected to the transverse component 10 at one end via a revolute joint. The connection point between the pull rod and the transverse component 10 is located in the middle of the transverse component 10, perpendicular to the track 90. ​​A handle 111 for easy hand grip is connected to the end of the pull rod away from the revolute joint. Two first sliders 30 are symmetrically arranged on both sides of the connection point between the pull rod and the transverse component 10. By positioning the pull rod in the middle of the transverse component 10 and symmetrically arranging the two first sliders 30, and simultaneously utilizing a bidirectional transmission structure to achieve synchronous adjustment of the two first sliders 30, the detection device can meet the detection requirements of tracks 90 with different spacings. It can also quickly adjust the spacing between the two first sliders 30. Furthermore, when detecting tracks 90 with different spacings, the driving component 11 remains centered between the two tracks 90, maintaining the force balance of the detection device during driving, allowing the detection device to move steadily and continuously detect the tracks 90.

[0029] Specifically, such as Figure 3 As shown, the bidirectional transmission structure includes a bidirectional screw 21 mounted on the transverse member 10 and rotatable relative to the transverse member 10, and a drive mechanism 22 for driving the bidirectional screw 21 to rotate. The bidirectional screw 21 has two threaded sections with opposite directions of rotation, and two first sliders 30 are respectively connected to the two threaded sections with opposite directions of rotation on the bidirectional screw 21. For example, the bottom of the transverse member 10 has a first groove 12 with its opening facing downwards; the bidirectional screw 21 is located in the first groove 12, and both ends are connected to the sidewall of the first groove 12 via bearings; in addition, one side of the transverse member 10 corresponding to the bidirectional screw 21 also has a first through hole with a diameter larger than the diameter of the bidirectional screw 21, and one end of the bidirectional screw 21 extends through the first through hole to the outside of the transverse member 10 and is connected to a drive motor. The drive motor drives the bidirectional screw 21 to rotate, thereby causing the two first sliders 30 to move coaxially relative to each other or away from each other.

[0030] Specifically, such as Figure 4 and Figure 5 As shown, the reciprocating structure includes a one-way screw 41 mounted on the first slider 30 and rotatable relative to it, and a second slider 42 located on the one-way screw 41, the second slider 42 being fixed to the top of the detection block 50. For example, the upper part of the first slider 30 is provided with a transverse through hole 32 threadedly connected to the one-way screw 41, and the bottom of the first slider 30 is provided with a second groove 31 with its opening facing downwards; the one-way screw 41 is located within the second groove 31, and both ends are connected to the sidewall of the second groove 31 via bearings. During the movement of the detection device along the track 90, since the detection block 50 is fitted onto the track 90, when the track 90 deviates, the detection block 50 will move relative to the first slider 30 under the cooperation of the second slider 42 and the one-way screw 41. The deviation of the track 90 can be obtained by measuring the distance the detection block 50 moves relative to the first slider 30.

[0031] Specifically, the displacement detection component includes a rotation detector for detecting the number of rotations of the one-way screw 41 and a calculator for calculating the movement distance of the second slider 42 on the one-way screw 41 based on the number of rotations and lead of the one-way screw 41. A second through hole with a diameter larger than the diameter of the one-way screw 41 is also provided on one side of the first slider 30 corresponding to the one-way screw 41. One end of the one-way screw 41 passes through the second through hole and connects to the rotation detector outside the first slider 30. For example, the rotation detector is an encoder 43. When the track 90 deviates, the detection block 50 moves in a direction perpendicular to the track 90, causing the second slider 42 to move. The movement of the second slider 42 causes the one-way screw 41 to rotate. By detecting the rotation of the one-way screw 41 through the displacement detection component, the distance moved by the detection block 50 relative to the first slider 30 can be obtained. Combined with the direction of movement of the detection block 50 relative to the first slider 30, the direction and amount of deviation of the track 90 can be determined.

[0032] Specifically, such as Figure 5 As shown, the limiting block 60 has a sleeve 61 at the top and a mounting hole at the bottom with a diameter larger than that of the movable crossbar 80. The limiting block 60 also has a threaded hole. The connecting part is a threaded rod 71, which passes through the threaded hole and is connected to the detection block 50 away from the pull rod via a bearing. A knob 72 is provided at the end of the threaded rod 71 away from the detection block 50. The sleeve 61 at the top of the limiting block 60 is fitted onto the transverse part 10 and can move back and forth in a direction perpendicular to the track 90. ​​The movable crossbar 80 passes through the mounting hole and is movably connected to the limiting block 60. A roller 82 is provided at the end of the movable crossbar 80 near the track 90. ​​One end of the elastic part 81 is fixed to the roller 82, and the other end is fixed to the side of the limiting block 60 near the roller 82. By rotating the knob 72, the threaded rod 71 can be rotated, allowing the limiting frame to move closer to or further away from the detection block 50. During testing, the limiting block 60 is brought closer to the detection block 50 to compress the elastic element 81, thereby causing the roller 82 on the movable crossbar 80 to fit against the side of the track 90. ​​When the side of the track 90 deforms, the horizontal position of the roller 82 will change accordingly, causing the movable crossbar 80 to move. Thus, by measuring the movement of the movable crossbar 80 relative to the limiting block 60, the degree of deformation of the track 90 can be determined.

[0033] When the side of track 90 is dented, the movable crossbar 80 will move closer to the detection block 50 under the spring restoring force. When there is a protruding structure on the side of track 90, the movable crossbar 80 will move away from the detection block 50 and further compress the elastic element 81. After passing the protruding structure, the movable crossbar 80 will return to its initial position under the restoring force.

[0034] For example, the measuring element is a marker 83, which is mounted on the end of the movable crossbar 80 away from the track 90 via a clamping assembly. The marker 83 is a marker pen. The clamping assembly includes a retaining ring 84 and a connecting plate 85 for connecting the retaining ring 84 and the movable crossbar 80. Since the marker 83 is fixedly connected to the movable crossbar 80, when the track 90 is not deformed, the marker 83 will draw a line parallel to the direction of the track 90. ​​When the track 90 deforms, causing the movable crossbar 80 to move relative to the limiting block 60, it will drive the marker 83 to move. Thus, the deformation of the track 90 can be determined by observing the drawn line.

[0035] In another embodiment, the measuring element is a sensor used to measure the degree of deformation of the elastic element 81. Since the elastic element 81 deforms accordingly when the movable crossbar 80 moves relative to the limiting block 60, the degree of deformation of the elastic element 81 can be measured to determine whether the side of the track 90 has deformed. The sensor can be a pressure sensor or similar device found in the prior art.

[0036] Specifically, the detection block 50 is a frame with openings on its bottom surface and two sides perpendicular to the track 90. ​​Inside the frame is a roller structure 51 that facilitates movement of the frame along the track 90. ​​When the frame is mounted on the track 90, the roller structure 51 is located on the top surface of the track 90, reducing the frame's resistance to movement. For example, two roller structures 51 are spaced apart along the track 90.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A track detection device, characterized in that, include: A transverse component is arranged on the track in a direction perpendicular to the track, and a driving component is provided on the transverse component to drive the transverse component to move in the track direction; The first slider, the two first sliders are connected to the transverse component through a bidirectional transmission structure, so that the two first sliders can move coaxially relative to each other or opposite to each other in a direction perpendicular to the track. A detection block is fitted onto the track. The detection block is connected to the first slider via a reciprocating moving structure, allowing the detection block to move relative to the first slider in a direction perpendicular to the track. A displacement detection element is used to measure the distance the detection block moves relative to the first slider; The limit block is connected to the detection block via a connector; The movable crossbar is slidably connected to the limiting block, so that the movable crossbar can move relative to the limiting block in a direction perpendicular to the track; an elastic element is provided between the end of the movable crossbar near the track and the limiting block, so that when the elastic element is in a compressed state, the end of the movable crossbar near the track is attached to the side of the track. The measuring element is used to measure the movement of the movable crossbar relative to the limit block.

2. The track detection device according to claim 1, characterized in that: The drive unit is located in the middle of the transverse member along the direction perpendicular to the track.

3. The track detection device according to claim 1, characterized in that: The bidirectional transmission structure includes a bidirectional screw mounted on a transverse member and rotatable relative to the transverse member, and a drive mechanism for driving the bidirectional screw to rotate. The bidirectional screw has two threaded sections with opposite directions of rotation.

4. The track detection device according to claim 3, characterized in that: The two sliders are respectively connected to two threaded sections with opposite directions of rotation on the bidirectional screw.

5. The track detection device according to claim 1, characterized in that: The reciprocating moving structure includes a one-way screw disposed on the first slider and rotatable relative to the first slider, and a second slider located on the one-way screw.

6. The track detection device according to claim 5, characterized in that: The second slider is fixed to the top of the detection block.

7. The track detection device according to claim 1, characterized in that: The detection block is a frame with openings on the bottom and two sides perpendicular to the track; the frame has a roller structure inside to facilitate the movement of the frame along the track.

8. The track detection device according to claim 1, characterized in that: The measuring element is a sensor used to measure the degree of deformation of an elastic element.

9. The track detection device according to claim 1, characterized in that: The measuring element is a marker placed at the end of the movable crossbar away from the track.

10. The track detection device according to claim 1, characterized in that: The movable crossbar is equipped with rollers at one end near the track.

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