Elastic gasket thickness measuring device

Abstract

The utility model relates to a kind of elastic pad plate thickness measuring devices, comprising: travelling device, for walking on track;Multiple image acquisition components, multiple image acquisition components are respectively installed on the two sides of travelling device and close to the rail of the track of two sides;Inclination sensor, the inclination sensor is set on the travelling device, for measuring the inclination angle of the current posture of travelling device relative to initial posture. Through the image acquisition component on the travelling device is set to realize the image rapid acquisition of elastic pad plate, and the state of travelling device is obtained by inclination sensor, to realize the data error of the thickness value of elastic pad plate caused by the inclination state of travelling device when data processing is eliminated, to improve the measurement accuracy and efficiency of measuring device.

Description

Technical Field

[0001] This utility model relates to the field of elastic pad technology, and in particular to an elastic pad thickness measuring device. Background Technology

[0002] After rail tamping, the geometry of the ballasted track bed inevitably changes, with the most significant change being the alteration of the condition of the elastic pads in the fasteners. Currently, the thickness of these elastic pads is often detected through manual visual inspection, but this method is slow, inefficient, and its accuracy is often affected by the subjective judgment of the inspectors, leading to frequent omissions and errors, thus posing safety hazards. Therefore, a device for measuring the thickness of the elastic pads is proposed. Utility Model Content

[0003] This invention provides an elastic pad thickness measuring device to solve at least one of the above-mentioned technical problems.

[0004] This utility model provides a device for measuring the thickness of an elastic pad, comprising: A walking device for moving on tracks; Multiple sets of image acquisition components are respectively installed on both sides of the walking device and close to the rails of the track on both sides; An inclination sensor is mounted on the walking device to measure the tilt angle of the walking device's current posture relative to its initial posture.

[0005] In one embodiment, a mileage counter is also included, which is mounted on the traveling device and is used for coarse positioning of sleepers on the track.

[0006] In one embodiment, each set of the image acquisition components includes a laser rangefinder sensor and a mounting box. The mounting box is mounted on the walking device, and the laser rangefinder sensor is installed inside the mounting box. The laser rangefinder sensor is used to determine the position of the measuring device on the track.

[0007] In one embodiment, each set of image acquisition components further includes an industrial camera and a laser light source, both of which are installed inside the mounting box for acquiring image data of the elastic pad area.

[0008] In one embodiment, a data processing unit is further included, which is mounted on the walking device and is electrically connected to the industrial camera, the laser rangefinder, the odometer, and the tilt sensor.

[0009] In one embodiment, the device further includes a first limiting mechanism and a second limiting mechanism, which are respectively disposed on both sides of the walking device to limit the walking device on the track. In one embodiment, the walking device includes a crossbeam and a longitudinal beam, the crossbeam being perpendicular to the track, the longitudinal beam being disposed at one end of the crossbeam, and the tilt sensor being installed in the middle of the crossbeam. In one embodiment, the device also includes multiple wheels, and the wheels on both sides of the walking device facilitate the movement of the walking device. In one embodiment, a handle is also included, which is disposed on the walking device to facilitate the operator to push the walking device.

[0010] In one embodiment, the system further includes a control unit, which is electrically connected to the data processing unit, the industrial camera, the laser rangefinder, the odometer, and the tilt sensor.

[0011] Compared with the prior art, the advantages of this utility model are that by setting an image acquisition component on the walking device to quickly acquire images of the elastic pad, and by obtaining the state of the walking device through an inclination sensor, the data error of the thickness value of the elastic pad caused by the tilt state of the walking device can be eliminated during data processing, thereby improving the measurement accuracy and efficiency of the measuring device. Attached Figure Description

[0012] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the interior of the mounting box of this utility model; Figure 3 This is a schematic diagram of the walking device of this utility model when tilted; Figure label: 1. Image acquisition component; 101. Industrial camera; 102. Laser light source; 103. Laser rangefinder; 104. Mounting box; 2. Data processing unit; 3. Mileage counter; 4. First limit mechanism; 5. Tilt sensor; 6. Second limit mechanism; 7. Walking device. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] This utility model is mainly used for measuring the thickness of the elastic pad at railway track fasteners.

[0016] Please refer to Figure 1 and Figure 2 A device for measuring the thickness of an elastic pad includes: a walking device 7, multiple image acquisition components 1, an inclination sensor 5, and a mileage counter 3. The walking device 7 is used to walk on a track. The multiple image acquisition components 1 are respectively installed on both sides of the walking device 7 and close to the rails of the track on both sides. The inclination sensor 5 is installed on the walking device 7 and is used to measure the tilt angle of the current posture of the walking device 7 relative to the initial posture, where the initial posture is when the walking device 7 is in a horizontal state. The mileage counter 3 is installed on the walking device 7 and is used to measure the walking distance of the walking device 7 and to perform coarse positioning of the sleepers on the track according to the standard spacing of the sleepers, that is, to perform the first positioning of the sleepers, so as to facilitate the confirmation of the position of the walking device 7 at this time and provide a positioning basis for subsequent accurate data acquisition. Since the elastic pad is set at the lower end of the fastener, it is convenient for the fastener to be installed on the sleeper. By positioning the sleeper, the initial positioning of the elastic pad to be measured can be achieved, which facilitates the subsequent accurate positioning of the elastic pad using a laser distance sensor 103.

[0017] In this embodiment, the image acquisition component 1 is provided in two sets, and is respectively located on the elastic pad side of the walking device 7 near the rail.

[0018] In this embodiment, the tilt angle refers to the angle α between the horizontal state of the crossbeam of the walking device 7 and the state of the crossbeam after one end of the crossbeam of the walking device 7 is higher or lower than the initial horizontal state. This is because the two rails of the track are not in the same horizontal plane in real time. When the walking device 7 runs on the track, one side of the rail may be higher than the other side, so that the crossbeam of the walking device 7 does not maintain a horizontal state. In this state, the thickness data of the elastic pad obtained by the image acquisition component 1 of the walking device 7 will deviate from the actual thickness data. Therefore, the tilt angle sensor 5 is used to measure the angle between the tilted crossbeam of the walking device 7 and the crossbeam of the walking device 7 in the initial horizontal state, and the obtained thickness data of the elastic pad is corrected by calculation.

[0019] Specifically, taking the horizontal beam of the traveling device 7 as the baseline, the angle formed between the horizontal beam of the traveling device 7 and the baseline after rotating upward around one end is positive, and the angle formed between the horizontal beam of the traveling device 7 and the baseline after rotating downward is negative.

[0020] To better implement this utility model, refer to Figure 2In one embodiment, each image acquisition component 1 includes a laser rangefinder 103, a mounting box 104, an industrial camera 101, and a laser light source 102. The mounting box 104 is mounted on the walking device 7, and the laser rangefinder 103 is installed inside the mounting box 104. The laser rangefinder 103 is used to determine the position of the measuring device on the track. The industrial camera 101 and the laser light source 102 are both installed inside the mounting box 104 and are used to acquire image data of the elastic pad area. The mounting box 104 is used to protect the internal laser rangefinder 103, industrial camera 101, and laser light source 102. Since the sleepers are installed on the concrete ground, and ballast is provided in other locations, the sleeper position is relatively flat. The laser rangefinder 103 measures the distance between itself and the track surface. When multiple measurements show that the data are basically the same, it indicates that the laser rangefinder 103 is exactly above the sleeper, that is, the image acquisition component 1 is exactly above the elastic pad. This indicates that the measuring device is accurately positioned, achieving precise positioning of the measuring device.

[0021] To better implement this utility model, refer to Figure 1 In one embodiment, the measuring device further includes a data processing unit 2, which is mounted on the walking device 7 and electrically connected to the industrial camera 101, the laser rangefinder 103, the odometer 3, and the tilt sensor 5. The data processing unit 2 receives image data measured by the industrial camera 101, processes it, and obtains the thickness value d of the elastic pad.

[0022] To better implement this utility model, refer to Figure 1 In one embodiment, the walking device 7 includes a crossbeam and a longitudinal beam, the crossbeam being perpendicular to the track, the longitudinal beam being located at one end of the crossbeam, and the tilt sensor 5 being installed in the middle of the crossbeam. Specifically, the walking device 7 also includes multiple wheels, a first limiting mechanism 4, a second limiting mechanism 6, and a handle. Wheels are also provided on both sides of the walking device 7 to facilitate its movement. The first limiting mechanism 4 and the second limiting mechanism 6 are respectively located on both sides of the walking device 7 to confine it to the track. A handle is provided on the walking device 7 to facilitate the operator in pushing it.

[0023] To better implement this utility model, this embodiment also includes a control unit, which is electrically connected to the data processing unit 2, industrial camera 101, laser rangefinder 103, odometer 3, and tilt sensor 5. The control unit controls the operation of each component. When the measuring device is working, the operator controls the odometer 3 via the control unit through the control panel to count the distances and transmits the data back to the data processing unit 2. Based on the real-time data, it is determined whether the device has reached the vicinity of the sleeper. Once it reaches the vicinity, the control unit controls the laser rangefinder 103 to measure the distance to the track surface. Multiple sets of measurement data are returned to the data processing unit 2. Based on the measured distance data to the track surface, it is determined whether the measuring device has reached the measurement position, and a second positioning (precision positioning) is performed. After reaching the measurement position, the control unit controls the industrial camera 101 and laser source 102 to operate to obtain the final image data. The industrial camera 101 transmits the image data to the data processing unit 2. Simultaneously, the control unit controls the tilt sensor 5 to detect the tilt angle of the traveling device 7. The tilt sensor 5 transmits the measured angle data to the data processing unit 2, and finally, the data processing unit 2 obtains the thickness value of the elastic pad.

[0024] Based on the above-mentioned elastic pad thickness measuring device, the operating steps during its use are as follows: Step 1: Place the walking device 7 on the rail on which the thickness of the elastic pad to be measured is to be made, so that it can move along the rail.

[0025] Step 2: Coarse positioning. Use the mileage counter 3 to measure the travel distance of the walking device 7, and perform coarse positioning of the sleepers according to the standard spacing of the sleepers to facilitate finding the approximate position of the elastic pad.

[0026] Step 3: Precise positioning. The distance to the track surface is measured using the laser range sensor 103. Based on the obtained distance data, it is determined whether the measuring device is located above the elastic pad to be measured.

[0027] Step 4: Obtain image data of the elastic pad area by using an industrial camera 101 in conjunction with a laser light source 102.

[0028] Step 5: The data processing unit 2 processes the image data obtained by the industrial camera 101 to obtain the thickness value d of the elastic pad.

[0029] Step 6: Measure the tilt angle α of the walking device 7 at this time using the tilt sensor 5.

[0030] Step 7: Obtain the corrected elastic pad thickness value based on the obtained tilt angle 'a' and elastic pad thickness value 'd'. That is, the actual thickness of the elastic pad, such as Figure 3 As shown.

[0031] In step 3.1, to ensure positioning accuracy, the laser rangefinder 103 can measure the distance data to the track surface multiple times. When the difference between multiple sets of data is within the allowable difference range, that is, the data fluctuation is small, it is determined that the measuring device has reached the top of the elastic pad to be measured.

[0032] Although the present invention has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A device for measuring the thickness of an elastic pad, characterized in that, include: A walking device for moving on tracks; Multiple sets of image acquisition components are respectively installed on both sides of the walking device and close to the rails of the track on both sides; An inclination sensor is mounted on the walking device to measure the tilt angle of the walking device's current posture relative to its initial posture. Each image acquisition component includes a laser rangefinder and a mounting box. The mounting box is installed on the walking device, and the laser rangefinder is installed inside the mounting box. The laser rangefinder is used to determine the position of the measuring device on the track.

2. The elastic pad thickness measuring device according to claim 1, characterized in that, It also includes a mileage counter, which is mounted on the traveling device and is used to coarsely position the sleepers on the track.

3. The elastic pad thickness measuring device according to claim 2, characterized in that, Each image acquisition component also includes an industrial camera and a laser light source, both of which are installed inside the mounting box for acquiring image data of the elastic pad area.

4. The elastic pad thickness measuring device according to claim 3, characterized in that, It also includes a data processing unit, which is installed on the walking device and is electrically connected to the industrial camera, the laser rangefinder, the odometer and the tilt sensor.

5. The elastic pad thickness measuring device according to any one of claims 1-4, characterized in that, It also includes a first limiting mechanism and a second limiting mechanism, which are respectively disposed on both sides of the walking device to limit the walking device on the track.

6. The elastic pad thickness measuring device according to claim 5, characterized in that, The walking device includes a crossbeam and a longitudinal beam. The crossbeam is perpendicular to the track, the longitudinal beam is located at one end of the crossbeam, and the tilt sensor is installed in the middle of the crossbeam.

7. The elastic pad thickness measuring device according to claim 4, characterized in that, It also includes multiple wheels, and the wheels on both sides of the walking device facilitate the movement of the walking device.

8. The elastic pad thickness measuring device according to claim 5, characterized in that, It also includes a handle, which is mounted on the walking device to facilitate the operator in pushing the walking device.

9. The elastic pad thickness measuring device according to claim 4, characterized in that, It also includes a control unit, which is electrically connected to the data processing unit, the industrial camera, the laser rangefinder, the odometer, and the tilt sensor.

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