A magnetic track gap and straightness synchronous measurement device

Abstract

This utility model discloses a magnetically aspirated synchronous measurement device for track gap and straightness, comprising: two fixed plates, and a fixing frame mounted on the top outer wall of the two fixed plates. A connecting frame is provided on the outer wall of one opposite side of the two fixing frames, and a slider is slidably connected to the inner wall of the connecting frame. A handle is installed on the top outer wall of the slider, and a displacement sensor is installed on the inner wall of the handle. A straightness measuring component is movably inserted into the top outer wall of the slider. This magnetically aspirated synchronous measurement device for track gap and straightness can simultaneously measure track straightness and fastener gap without requiring multiple operations, improving detection efficiency. The data corresponds to the same location, facilitating comprehensive analysis. The straightness measurement uses a mechanical contact method, unaffected by light, and works stably in both strong and low light environments, ensuring accuracy. Gap measurement, through image analysis, can accurately obtain dimensions, helping to determine the fastener fixing effect and providing support for safe track operation.

Description

Technical Field

[0001] This utility model relates to the field of track measurement technology, specifically a magnetic track gap and straightness synchronous measurement device. Background Technology

[0002] In the rail transit sector, track clearance (such as the gap between fasteners and rails) and straightness are key indicators for ensuring the safe and stable operation of trains. Abnormal track clearance, if too large, can lead to insufficient fastener pressure on the rails, reduced rail stability, and train swaying; if too small, it may affect the elasticity of the fasteners. Excessive deviation in track straightness will accelerate wheel and rail wear and even increase the risk of derailment; therefore, both must be regularly and accurately inspected.

[0003] Existing track inspection equipment has several shortcomings: current equipment can only measure gaps or straightness separately, requiring two separate operations, resulting in low inspection efficiency. Furthermore, the two measurement data are difficult to accurately correspond to the same track position, affecting comprehensive analysis. Currently, straightness measurement uses laser ranging, which is susceptible to ambient light interference; measurement accuracy drops significantly under strong direct light or insufficient light. Therefore, there is an urgent need for a track inspection device that can perform simultaneous measurements, is resistant to light interference, and is easily fixed to address these problems. Utility Model Content

[0004] The purpose of this invention is to provide a magnetic track gap and straightness synchronous measurement device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a magnetic track gap and straightness synchronous measurement device, comprising: two fixed plates, and further comprising: a fixed frame installed on the top outer wall of the two fixed plates, a connecting frame provided on the outer wall of the two fixed frames on opposite sides, and a slider slidably connected to the inner wall of the connecting frame, a handle installed on the top outer wall of the slider, and a displacement sensor installed on the inner wall of the handle, a straightness measuring component movably inserted into the top outer wall of the slider, and gap measuring components slidably connected to the outer walls on both sides of the straightness measuring component, threaded rods rotatably installed on the top outer walls of the two fixed frames, and clamping components screwed onto the two threaded rods, magnet blocks embedded in the bottom outer walls of the two fixed plates, and a controller installed on one side outer wall of one of the fixed frames.

[0006] The straightness measuring component includes a movable rod, a spring sleeved on the outside of the movable rod, a mounting bracket installed at the bottom of the movable rod, a roller rotatably installed on the inner wall of the mounting bracket, and sliding openings on the outer walls of both sides of the mounting bracket. The top of the spring is connected to the bottom outer wall of the slider, and the bottom of the spring is connected to the top outer wall of the mounting bracket.

[0007] The roller has a ring magnet installed inside.

[0008] The gap measuring assembly includes a lifting block, a bending plate installed on one outer wall of the lifting block, a limiting plate installed on one outer wall of the bending plate, a limiting bolt screwed to one outer wall of the limiting plate, and a camera installed on the bottom outer wall of the bending plate.

[0009] The clamping assembly includes a screw block, traction rods rotatably mounted on the outer walls of both sides of the screw block, movable blocks rotatably mounted on the bottom of the two traction rods, and clamping blocks mounted on the bottom of the two movable blocks.

[0010] Both ends of the top outer wall of the two fixing plates have guide grooves, and the clamping blocks are slidably connected in the corresponding guide grooves.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This utility model discloses a magnetic track gap and straightness synchronous measurement device, which can simultaneously measure track straightness and fastener gap without the need for multiple operations, thus improving detection efficiency. Moreover, the data can correspond to the same position, facilitating comprehensive analysis. The straightness measurement uses a mechanical contact method, which is not affected by light and works stably in both strong and low light environments, ensuring accuracy. The gap measurement, through image analysis, can accurately obtain dimensions, helping to judge the fastener fixing effect and providing support for the safe operation of the track. Attached Figure Description

[0013] Figure 1 This is an overall structural diagram of the present invention;

[0014] Figure 2 This is a bottom view of the fixing plate structure of this utility model;

[0015] Figure 3 This is a structural diagram of the straightness measuring component of this utility model;

[0016] Figure 4 This is a cross-sectional view of the roller structure of this utility model;

[0017] Figure 5 This is a structural diagram of the gap measuring component of this utility model;

[0018] Figure 6 This is a structural diagram of the clamping component of this utility model.

[0019] In the diagram: 1. Track; 2. Fixing plate; 3. Fixing frame; 4. Connecting frame; 5. Slider; 6. Handle; 7. Displacement sensor; 8. Straightness measuring component; 801. Movable rod; 802. Spring; 803. Mounting bracket; 804. Roller; 804-1. Ring magnet; 805. Sliding port; 9. Gap measuring component; 901. Lifting block; 902. Bending plate; 903. Limit bolt; 904. Camera; 10. Threaded rod; 11. Clamping component; 1101. Screw block; 1102. Traction rod; 1103. Moving block; 1104. Clamping block; 12. Magnet block; 13. Controller; 14. Guide groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-6 This utility model provides a magnetic track gap and straightness synchronous measurement device, including: two fixed plates 2, and a fixed frame 3 installed on the top outer wall of the two fixed plates 2. The outer wall of the two fixed frames 3 is provided with a connecting frame 4 on one side, and a slider 5 is slidably connected to the inner wall of the connecting frame 4. A handle 6 is installed on the top outer wall of the slider 5, and a displacement sensor 7 is installed on the inner wall of the handle 6. A straightness measuring component 8 is movably inserted into the top outer wall of the slider 5, and gap measuring components 9 are slidably connected to both outer walls of the straightness measuring component 8. Threaded rods 10 are rotatably installed on the top outer walls of the two fixed frames 3, and clamping components 11 are screwed onto the two threaded rods 10. Magnet blocks 12 are embedded in the bottom outer walls of the two fixed plates 2, and a controller 13 is installed on one side outer wall of one of the fixed frames 3.

[0022] It should be noted here that:

[0023] Device positioning and fixed start-up: Place the two fixing plates 2 on the track 1 to be measured. Utilize the magnetic force generated by the magnet block 12 embedded at the bottom of the fixing plate 2 to make the fixing plate 2 quickly adhere to the surface of the track 1, achieving initial rapid positioning. Then rotate the threaded rod 10 on the top outer wall of the fixing frame 3. The threaded rod 10 drives the clamping assembly 11 connected to it to move, clamping the track 1 and further fixing the fixing plate 2 firmly on the track 1 to prevent the device from shifting during the measurement process.

[0024] Straightness measurement preparation and data acquisition drive: After the device is fixed, the straightness measurement component 8 contacts the top of the track 1, and at this time the straightness measurement component 8 will squeeze the displacement sensor 7 installed on the inner wall of the handle 6; the operator pushes the slider 5, which is slidably connected to the inner wall of the connecting frame 4, to move by holding the handle 6. The slider 5 drives the straightness measurement component 8, which is movably inserted with it, to move synchronously on the top of the track 1.

[0025] Straightness detection logic: When the top of the track 1 is uneven, the straightness measuring component 8 is subjected to the force of the change in the height of the track 1 surface. The degree of compression of the component on the displacement sensor 7 will be different. The displacement sensor 7 converts the change in the degree of compression into an electrical signal. The change in the electrical signal can reflect the straightness of the track 1. The electrical signal can finally be transmitted to the controller 13 installed on the outer wall of one of the fixed frames 3 for processing or display.

[0026] The gap measurement is performed simultaneously with the detection objective: As the slider 5 moves the straightness measuring component 8, the two gap measuring components 9, which are slidably connected to the outer walls on both sides of the straightness measuring component 8, move together. During the movement, the gap measuring components 9 photograph the joint between the fastener and the rail 1. The captured images can be processed by relevant image analysis software to measure the gap size at the joint between the fastener and the rail 1. By measuring this gap size, the fixation of the fastener to the rail can be determined, ensuring that the fastener can firmly fix the rail to the sleeper and prevent lateral or longitudinal displacement of the rail. If the gap is too large, it can be detected in time that the fastener's clamping force on the rail is insufficient and the rail stability is reduced, avoiding train swaying during operation. If the gap is too small, it can detect potential problems that may affect the normal elastic function of the fastener.

[0027] In a preferred embodiment, the straightness measuring assembly 8 includes a movable rod 801, a spring 802 sleeved on the outside of the movable rod 801, a mounting bracket 803 mounted on the bottom of the movable rod 801, a roller 804 rotatably mounted on the inner wall of the mounting bracket 803, and sliding openings 805 opened on the outer walls of both sides of the mounting bracket 803. The top of the spring 802 is connected to the bottom outer wall of the slider 5, and the bottom of the spring 802 is connected to the top outer wall of the mounting bracket 803.

[0028] It should be noted here that:

[0029] Straightness measuring component and track contact adaptation: The roller 804, which is rotatably mounted at the bottom of the mounting bracket 803 in the straightness measuring component 8, contacts the top of the track 1. Under the action of the spring 802 (the top of the spring 802 is connected to the bottom outer wall of the slider 5, and the bottom is connected to the top outer wall of the mounting bracket 803, generating a downward elastic force on the mounting bracket 803 in its natural state), the roller 804 can always fit tightly against the top surface of the track 1. Even if there are slight undulations in the track 1, the extension and contraction of the spring 802 can ensure the contact state between the roller 804 and the track 1.

[0030] Track flatness signal transmission: When the slider 5 is pushed by the handle 6 to move the straightness measuring component 8, if the top of the track 1 is uneven, the change in the height of the track 1 surface will cause the roller 804 to move the mounting frame 803 up and down; the mounting frame 803 drives the movable rod 801 connected to it to move up and down synchronously, and the up and down movement of the movable rod 801 changes the degree of compression on the displacement sensor 7; the displacement sensor 7 converts the change in the degree of compression into a corresponding electrical signal, and then reflects the straightness of the track 1 through the difference in the electrical signal; the sliding openings 805 on both sides of the outer wall of the mounting frame 803 provide a structural basis for the sliding connection between the gap measuring component 9 and the straightness measuring component 8, ensuring that the gap measuring component 9 can move stably with the straightness measuring component 8.

[0031] In a preferred embodiment, a ring magnet 804-1 is installed inside the roller 804.

[0032] It should be noted that the annular magnet 804-1 installed inside the roller 804 generates magnetic force, which enhances the attraction between the roller 804 and the top surface of the track 1. This allows the roller 804 to adhere more tightly to the surface of the track 1 even when encountering slight protrusions or depressions, reducing relative slippage or jumping between the roller 804 and the track 1. This ensures that changes in the flatness of the track 1 can be transmitted more accurately and promptly to the mounting frame 803 via the roller 804, and then to the displacement sensor 7 via the movable rod 801, improving the accuracy of straightness measurement and avoiding measurement errors caused by insufficient contact between the roller 804 and the track 1.

[0033] In a preferred embodiment, the gap measuring component 9 includes a lifting block 901, a bending plate 902 mounted on one side of the outer wall of the lifting block 901, a limiting plate mounted on one side of the outer wall of the bending plate 902, a limiting bolt 903 screwed to one side of the outer wall of the limiting plate, and a camera 904 mounted on the bottom outer wall of the bending plate 902.

[0034] It should be noted here that:

[0035] Gap measuring component position adjustment and fixing: The gap measuring component 9 is slidably connected to the outer walls on both sides of the straightness measuring component 8 via the lifting block 901. The operator can slide the lifting block 901 up and down according to the height of the joint between the track 1 and the fastener, and adjust the height of the camera 904 installed on the bottom outer wall of the bending plate 902 so that the camera 904 can clearly capture the joint between the fastener and the track 1. After the height adjustment is completed, rotate the limiting bolt 903 on the limiting plate on one side of the outer wall of the bending plate 902. One end of the limiting bolt 903 abuts against the outer wall of the straightness measuring component 8, fixing the lifting block 901 in the current position and preventing the height of the camera 904 from shifting during the measurement process.

[0036] Gap measurement data acquisition: When the straightness measuring component 8 moves with the slider 5, the gap measuring component 9 moves synchronously. During the movement, the camera 904 continuously captures images of the joint between the fastener and the rail 1, acquiring image information of this joint. The captured images are transmitted to the accompanying image analysis software, which processes and analyzes the images to measure the gap size between the fastener and the rail 1. This enables the detection of the gap between the fastener and the rail 1, thereby determining whether the fastener is securely fixed to the rail, preventing lateral or longitudinal displacement of the rail, and avoiding train operation problems caused by abnormal gaps.

[0037] In a preferred embodiment, the clamping assembly 11 includes a screw block 1101, traction rods 1102 rotatably mounted on the outer walls of both sides of the screw block 1101, movable blocks 1103 rotatably mounted on the bottom of the two traction rods 1102, and clamping blocks 1104 mounted on the bottom of the two movable blocks 1103.

[0038] It should be noted here that:

[0039] Power transmission and operation of clamping assembly: Rotate the threaded rod 10 at the top of the fixed frame 3. The rotation of the threaded rod 10 drives the threaded block 1101 connected to it to move along the axial direction of the threaded rod 10. When the threaded rod 10 rotates forward or backward, the threaded block 1101 rises or falls. When the threaded block 1101 moves, the traction rod 1102 rotatably connected to its outer walls on both sides moves accordingly. The traction rod 1102 pulls the moving block 1103 rotatably connected to the bottom to move.

[0040] Track clamping and fixing is achieved by moving block 1103 driving clamping block 1104 installed at the bottom to move synchronously. Since clamping block 1104 is slidably connected in the guide groove 14 on the top outer wall of fixed plate 2, the guide groove 14 restricts the movement direction of clamping block 1104, so that the two clamping blocks 1104 can accurately approach and clamp the track 1, thereby fixing the fixed plate 2 firmly on the track 1, providing a stable device foundation for subsequent straightness and gap measurement, and preventing the device from shaking during the measurement process and affecting the accuracy of the data.

[0041] In a preferred embodiment, guide grooves 14 are provided at both ends of the top outer wall of the two fixing plates 2, and the clamping block 1104 is slidably connected in the corresponding guide groove 14.

[0042] It should be noted that during the operation of the clamping assembly 11, when the moving block 1103 drives the clamping block 1104 to move, the clamping block 1104 slides along the guide grooves 14 opened at both ends of the top outer wall of the fixed plate 2. The guide grooves 14 restrict and guide the movement trajectory of the clamping block 1104, ensuring that the clamping block 1104 can only move along the extension direction of the guide grooves 14, avoiding the clamping block 1104 from deviating, jamming or misaligning during the movement, ensuring that the two clamping blocks 1104 can accurately and stably clamp the track 1, further improving the fixed stability of the fixed plate 2 on the track 1, and providing a guarantee for the accuracy of subsequent measurement work.

[0043] Working principle:

[0044] I. Core Working Logic of the Overall Device

[0045] Device positioning and fixing: Place the two fixing plates 2 on the track 1 to be measured. Utilize the magnetic force generated by the magnet block 12 embedded at the bottom of the fixing plate 2 to make the fixing plate 2 quickly adhere to the surface of the track 1, completing the initial positioning. Then rotate the threaded rod 10 at the top of the fixing frame 3. The threaded rod 10 drives the clamping assembly 11 connected to it to move, clamping the track 1 and firmly fixing the fixing plate 2 on the track 1 to prevent the device from shifting during measurement.

[0046] Straightness measurement start-up and data acquisition: After the device is fixed, the straightness measuring component 8 contacts the top of the track 1 and squeezes the displacement sensor 7 on the inner wall of the handle 6; the operator holds the handle 6 and pushes the slider 5 in the connecting frame 4 to move, and the slider 5 drives the straightness measuring component 8 to slide along the top of the track 1; when the top of the track 1 is uneven, the degree of squeezing of the straightness measuring component 8 on the displacement sensor 7 changes, and the displacement sensor 7 converts the change into an electrical signal, which is transmitted to the controller 13, thereby reflecting the straightness of the track 1.

[0047] The gap measurement is carried out synchronously: when the slider 5 moves, the gap measurement components 9 on both sides of the straightness measurement component 8 move synchronously; during the movement, the gap measurement component 9 takes pictures of the joint between the fastener and the rail 1. The pictures are processed by image analysis software to measure the gap size between the fastener and the rail 1, judge the fixing effect of the fastener on the rail, and avoid rail displacement or train swaying due to abnormal gap.

[0048] II. Working Principle of Key Components

[0049] (a) Straightness Measurement Component

[0050] Contact and Adaptation Mechanism: The roller 804 in the straightness measuring component 8 is connected to the movable rod 801 through the mounting bracket 803. The spring 802 (connected to the slider 5 at the top and the mounting bracket 803 at the bottom) sleeved on the outside of the movable rod 801 generates a downward elastic force, so that the roller 804 is always in close contact with the top of the track 1. Even if the track 1 has slight undulations, the extension and contraction of the spring 802 can ensure the contact state.

[0051] Flatness signal transmission: When the top of the track 1 is uneven, the roller 804 moves the mounting frame 803 up and down with the change in track height. The mounting frame 803 drives the movable rod 801 to move up and down synchronously, changing the squeezing force of the movable rod 801 on the displacement sensor 7. At the same time, the annular magnet 804-1 inside the roller 804 enhances the attraction force with the track 1, reduces the jump of the roller 804, and ensures that the change in track flatness is accurately transmitted to the displacement sensor 7.

[0052] Gap component adapter support: The sliding ports 805 on both sides of the mounting bracket 803 provide sliding connection channels for the gap measuring component 9, ensuring that the gap measuring component 9 can move stably with the straightness measuring component 8 and achieve synchronous measurement.

[0053] Two-gap measurement assembly

[0054] Position adjustment and fixation: The gap measuring component 9 is slidably connected to the straightness measuring component 8 through the lifting block 901. The operator can slide the lifting block 901 up and down to adjust the height of the camera 904 at the bottom of the bending plate 902 so that the camera 904 is aligned with the joint between the fastener and the track 1. After the adjustment is completed, the limit bolt 903 on the limit plate is rotated so that the limit bolt 903 is pressed against the outer wall of the straightness measuring component 8 to fix the position of the lifting block 901 and prevent the camera 904 from shifting.

[0055] Gap data acquisition: During measurement, the camera 904 moves with the gap measuring component 9 and continuously captures images of the joint between the fastener and the track 1. After the images are transmitted to the supporting software, the software analyzes and calculates the gap size to determine whether the gap meets the requirements (if the gap is too large, the fastener's clamping force will be insufficient; if it is too small, the elasticity of the fastener will be affected).

[0056] (III) Clamping Components and Guiding Structure

[0057] Clamping and fixing action: When the threaded rod 10 is rotated, the threaded rod 10 drives the threaded block 1101 to move along the axial direction of the threaded rod 10 (forward rotation rises, reverse rotation descends); the threaded block 1101 pulls the traction rods 1102 on both sides, the traction rods 1102 drive the moving block 1103 at the bottom to move, the moving block 1103 drives the clamping block 1104 to approach the track 1 and clamp it, further fixing the fixing plate 2.

[0058] Guiding and limiting function: The clamping block 1104 is slidably connected in the guide groove 14 on the top of the fixed plate 2. The guide groove 14 restricts the movement trajectory of the clamping block 1104, ensuring that the clamping block 1104 only moves in the direction of "closer to / away from track 1", avoiding deviation and jamming, and ensuring clamping accuracy and stability.

[0059] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A magnetically aspirated track clearance and straightness synchronous measurement device, comprising: Two fixing plates (2); The invention is characterized by further comprising: a fixing frame (3) installed on the top outer wall of two fixing plates (2), a connecting frame (4) provided on the opposite side outer wall of the two fixing frames (3), and a slider (5) slidably connected to the inner wall of the connecting frame (4), a handle (6) installed on the top outer wall of the slider (5), and a displacement sensor (7) installed on the inner wall of the handle (6), a straightness measuring component (8) movably inserted on the top outer wall of the slider (5), and a gap measuring component (9) slidably connected to both sides of the straightness measuring component (8), a threaded rod (10) rotatably installed on the top outer wall of the two fixing frames (3), and a clamping component (11) screwed onto both threaded rods (10), a magnet block (12) embedded in the bottom outer wall of the two fixing plates (2), and a controller (13) installed on one side outer wall of one of the fixing frames (3).

2. The magnetic type track gap and straightness synchronous measurement device according to claim 1, characterized in that: The straightness measuring component (8) includes a movable rod (801), a spring (802) sleeved on the outside of the movable rod (801), a mounting bracket (803) installed at the bottom of the movable rod (801), a roller (804) rotatably installed on the inner wall of the mounting bracket (803), and sliding openings (805) opened on the outer walls of both sides of the mounting bracket (803). The top of the spring (802) is connected to the bottom outer wall of the slider (5), and the bottom of the spring (802) is connected to the top outer wall of the mounting bracket (803).

3. The magnetic type track gap and straightness synchronous measurement device according to claim 2, characterized in that: The roller (804) has an annular magnet (804-1) installed inside.

4. The magnetic type track gap and straightness synchronous measurement device according to claim 1, characterized in that: The gap measuring component (9) includes a lifting block (901), a bending plate (902) installed on one side of the outer wall of the lifting block (901), a limiting plate installed on one side of the outer wall of the bending plate (902), a limiting bolt (903) screwed to one side of the outer wall of the limiting plate, and a camera (904) installed on the bottom outer wall of the bending plate (902).

5. The magnetic track gap and straightness synchronous measurement device according to claim 1, characterized in that: The clamping assembly (11) includes a screw block (1101), traction rods (1102) rotatably mounted on the outer walls of both sides of the screw block (1101), a moving block (1103) rotatably mounted on the bottom of the two traction rods (1102), and a clamping block (1104) mounted on the bottom of the two moving blocks (1103).

6. The magnetic type track gap and straightness synchronous measuring device according to claim 5, characterized in that: Both ends of the top outer wall of the two fixing plates (2) are provided with guide grooves (14), and the clamping block (1104) is slidably connected in the corresponding guide groove (14).

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