A vehicle for measuring inner cavity dimensions of an empty track beam and a testing method thereof

Abstract

The present invention discloses a vehicle for measuring the inner cavity dimensions of an empty rail track beam and a testing method thereof. The measuring vehicle comprises a driving device, a guiding and stabilizing device, an obstacle detecting device, an electrical control device, a data detecting device, and a data processing system. Through the measuring and detecting device and the verification system, fully automatic remote control of the inner cavity dimension measurement of the track beam can be achieved, and by automatically storing the measurement data to generate a dimension detection chart and a dimension detection wave line chart, the out-of-tolerance position of the track beam can be quickly checked and accurate inspection and review can be achieved. The invention avoids the labor intensity and measurement difficulty as well as measurement errors and review errors caused by manual measurement in the limited space of the inner cavity of the track beam. The measuring and testing technical scheme of the invention improves the progress and accuracy of the operator's inspection and improvement of the inner cavity dimension of the empty rail track beam before the trial operation; shortens the cost and time of the supplier to modify the processing technology; and ensures the smoothness and safety of the suspended train running in its track beam.

Description

Technical Field

[0001] The invention belongs to the technical field of suspended rail transportation, and mainly relates to an empty rail track beam inner cavity dimension measuring vehicle and a testing method thereof. Background Art

[0002] SkyRail is an aerial rail system, a suspended monorail system that alleviates urban transportation challenges by eliminating the need to expand existing road infrastructure. The tracks are located above the train, supported in the air by steel or concrete columns, making it suitable for intercity rail travel.

[0003] The aerial rail has the advantages of low construction cost, fast construction, small footprint, detachable and movable, full process automation, environmental protection, low noise and energy saving; it is being promoted and piloted in major cities in my country.

[0004] The track beam of a suspended monorail is a closed cavity structure, within which the bogies of the SkyRail trains travel. Therefore, the dimensional accuracy of the track beam's inner cavity determines the bogies' smooth operation, which in turn directly impacts the SkyRail train's ride comfort.

[0005] Application number CN2017113295870 is an automatic running detection device suitable for aerial rail tracks. The main background technology patent document is: CN2017101486294 is an aerial rail transportation system based on embedded tracks, that is, the present invention adopts a running part of steel running wheels and cooperates with the embedded track system to form a steel wheel-steel rail running system, replacing the rubber wheel running mechanism of traditional aerial rail transportation. The running part of the steel running wheel greatly reduces wheel wear and operating energy consumption, and reduces maintenance costs. The technical solution provided mainly provides an automatic running detection device to solve the working conditions of the steel wheel running route track of its "aerial rail transportation system with embedded tracks".

[0006] Application number CN2021214197415 is a track beam measuring vehicle, which mainly discloses a device for measuring the superelevation of the track beam running surface and the spacing within the guide surface of the track beam;

[0007] Application No. CN2021214197415 A track beam measuring vehicle, the utility model discloses a device for measuring the superelevation of the running surface of a track beam and the spacing within the guide surface of the track beam;

[0008] Application number CN2022213253465 is used for an inspection vehicle for track beams, which mainly collects the contour parameters of the outer surface of the track beam and the walking parameters of the frame.

[0009] Application number CN2022233632093 is an automatically adjustable track beam internal spacing detection device, which is a hand-held manual measuring device that is pushed longitudinally along the track beam and reads the corresponding values ​​through the transparent dial to observe the telescopic rod scale mark line for multi-point data recording; its measurement accuracy is poor and the labor intensity is high.

[0010] The above-mentioned patent documents that are relatively similar to the technical solution of the present invention are different in terms of device composition structure, measurement object, measurement position, measurement means, detection method, implementation effect, etc., and the measurement accuracy and detection method are not ideal. The main detection scenario is also to detect the working conditions of the rail train that has already been running. It does not involve the measurement and testing of the inner cavity size of the track beam of the sky rail train before the operation, and does not propose solutions to the difficulties caused by the rectification of problems encountered in the detection after the train is running.

[0011] The track beam is a crucial component of a suspended monorail train. It's a closed cavity within which the bogie travels. The bogie's running wheels are driven by motors on the running boards beneath the track beam. Auxiliary wheels on either side stabilize the bogie via the webs on the sides of the track beam. The bogie's power and grounding shoes also rub against the power and grounding rails mounted on the sides of the track beam. Therefore, the dimensions of the track beam's cavity determine the bogie's smooth operation, which in turn directly impacts the train's ride comfort.

[0012] Due to the above reasons, the inner cavity size of the track beam is very critical and needs to be strictly controlled during the manufacturing process. However, since the track beam is a closed cavity structure, it is not convenient to measure its inner cavity size with a tape measure. Although it is convenient to measure with a laser rangefinder, the accuracy is only at the millimeter level, and it is difficult to accurately measure the size of the track beam, especially the measurement of curved beams. In addition, the inner cavity space of the track beam is not spacious, and people can only walk around bent over. If you want to measure tens of meters or even kilometers, it will be very uncomfortable and tiring when operating. When the train is officially running and the error in the inner cavity size of the track beam exceeds the set threshold, it is more troublesome to rework and repair the inner cavity size of the track beam, especially for the supplier manufacturer. It is difficult to improve the processing technology, which will directly affect the product delivery time, the train passage period and the train operation quality. Summary of the Invention

[0013] In view of this, in order to solve the above problems, the present invention provides a vehicle for measuring the inner cavity dimensions of an empty track beam and a testing method thereof, which can save time, effort, accurately and efficiently measure and test the inner cavity dimensions of the track beam before the operation of a suspended train. The specific technical solution is as follows:

[0014] A vehicle for measuring the inner cavity size of an empty rail track beam comprises a driving device, a guiding and stabilizing device, an obstacle detection device, an electrical control device, a data detection device, and a data processing system; the characteristics are as follows: the driving device is provided with a battery, a running wheel, a wheel axle, a synchronous belt, and a driving motor on the measuring vehicle body; the measuring vehicle body is located in the inner cavity of the rail beam; the running wheel is located at the bottom of the measuring vehicle body and is connected to the wheel axle, the synchronous belt, and the driving motor; the guiding and stabilizing device comprises a guide wheel; the guide wheel is located at the upper and lower positions on both sides of the head and tail of the measuring vehicle body; the obstacle detection device is provided with an obstacle detection integrated machine; the obstacle detection integrated machine is located at the head and end of the measuring vehicle body; the electrical control device comprises a power supply rail, a power receiving shoe, a grounding rail, a grounding shoe, an integrator, and a motor controller; the power receiving shoe and the grounding shoe are located on the rail The side of the beam is in friction contact with the power supply rail and the grounding rail; the data detection device includes a detection box, a measuring table, a motion block, a screw, a motor, and a guide rail; a detection box controller and a detection host; the detection box is located around the main body of the measuring vehicle; the data processing system includes a sensor, a signal receiver, a WIFI mobile processing device, a communication transmitter, a remote control device, and a signal data image processing software; the measuring table of the detection box is connected to the motion block; and the guide rail is extended and slid under the drive of the motor through the screw; the forward and reverse drive of the motor transmits the measurement information to the detection box controller through the internal sensor, and then the detection box controller is controlled by the remote movable control structure; the extension and sliding of the measurement table of the detection box is automatically executed by the instructions set by the remote control client device through the alarm information issued by the obstacle detection integrated machine.

[0015] Furthermore, the values ​​measured by the measurement table of the detection box transmit the data to the WIFI mobile processing device through the internal sensor, and then transmit the data information to the remote control device through the mobile device communication transmitter. The remote control device generates an instantaneous measured dimensional tolerance data value chart and dimensional tolerance data wave line chart by the signal receiver and signal data image processing software.

[0016] Furthermore, the acquisition frequency and accuracy setting range of the measurement table of the detection box are formulated according to actual working conditions; the maximum acquisition frequency is 50 milliseconds, and the accuracy is 0.01mm to 0.001mm.

[0017] Furthermore, the detection host stores the measurement data values ​​of the entire road section and the over-threshold data chart and wave line diagram, and automatically stops and re-inspects the over-threshold historical wave line section when the measurement vehicle body reviews the repaired track beam inner cavity size section, and automatically generates a new track beam inner cavity size detection chart and wave line diagram by comparing the historical detection data.

[0018] Furthermore, a testing method for an empty rail track beam inner cavity dimension measuring vehicle is provided, characterized in that: the measurement values ​​of the dimensional tolerance data value chart include probe position information, probe measurement values, measurement frequency, and measurement time; and the measurement acquisition frequency of each item of the dimensional tolerance data value chart is set automatically.

[0019] Furthermore, the dimensional tolerance data wave line diagram measurement item data generated by the measurement values ​​of the dimensional tolerance data value chart includes five groups: (A), (B), (C), (D), and (E); the (A) group is the measurement wave line values ​​of each section of the entire process; namely: - lower left guide, - upper left guide, - left running board, - lower right guide; - right running board, - upper right guide, - top; the (B) group is: lower guide width; the (C) group is: upper guide width; the (D) group is: running height difference; the (E) group is: inner height (left inner height, right inner height).

[0020] Furthermore, the longitudinal coordinate values ​​and transverse coordinate values ​​of each group of data in the dimensional tolerance data wave line diagram generated by the measurement values ​​of the dimensional tolerance data value chart are the dimensional tolerance and distance setting values ​​of the detection section, and the setting values ​​are set automatically;

[0021] Furthermore, the dimension tolerance data wave line diagram generated by the measurement values ​​of the dimension tolerance data value chart is combined with the dimension tolerance data value chart to automatically generate a track beam inner cavity dimension detection report through data analysis software.

[0022] Compared with the background technology, the technical solution of the vehicle for measuring the inner cavity dimensions of an empty rail beam and the testing method thereof of the present invention has the following beneficial effects:

[0023] 1. Fully automatic remote control measuring vehicle to measure the inner cavity dimensions of the empty rail track beam;

[0024] 2. Automatically measure the dimensions of each part of the inner cavity of the empty track beam in all directions without blind spots;

[0025] 3. The measuring vehicle automatically detects obstacles and track expansion joints and automatically adjusts the measuring state of the measuring table;

[0026] 4. Automatically store measurement data and generate dimension detection charts and dimension detection wave line diagrams;

[0027] 5. Quickly check the out-of-tolerance position and achieve accurate maintenance through dimension inspection charts and dimension inspection wave line diagrams;

[0028] 6. Quickly review the maintenance dimensions of the inner cavity of the empty rail beam where the dimensions are out of tolerance;

[0029] 7. The fully automatic measurement process avoids the labor intensity and measurement difficulty caused by manual measurement in limited space;

[0030] 8. Accurate measurement methods and measurement values ​​avoid measurement errors and review errors caused by manual measurement;

[0031] 9. The measurement and testing technical solution of this invention improves the progress and accuracy of the operator's inspection and improvement of the inner cavity dimensions of the aerial rail track beam before the trial operation; shortens the cost and time of the supplier to modify the processing technology; and ensures the smoothness and safety of the suspended train running in its track beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the track beam inner cavity structure and working position of a vehicle for measuring the inner cavity dimensions of an empty track beam according to the present invention;

[0033] Figure 2 This is a schematic diagram of the overall structure of a vehicle for measuring the inner cavity dimensions of an empty rail track beam according to the present invention;

[0034] Figure 3 This is a schematic diagram of the driving structure of a vehicle for measuring the inner cavity dimensions of an empty track beam according to the present invention;

[0035] Figure 4 This is a schematic structural diagram of an integrated obstacle detection device for measuring the inner cavity dimensions of an empty rail beam according to the present invention;

[0036] Figure 5 This is a schematic diagram of the structure of a detection box for measuring the inner cavity dimensions of an empty rail track beam according to the present invention;

[0037] Figure 6 This is an electrical topology diagram of a vehicle for measuring the inner cavity dimensions of an empty rail beam and a testing method thereof;

[0038] Figure 7 The present invention provides a vehicle for measuring the inner dimensions of an empty rail beam and a test method thereof, and a "dimensional tolerance data value chart";

[0039] Figure 8 The present invention discloses a vehicle for measuring the inner cavity dimensions of an empty rail beam and a testing method thereof, namely, a "dimensional tolerance data wave line diagram".

[0040] Figures:

[0041] Figure 1 Middle: 1. Track beam, 2. Power supply rail, 3. Power receiving shoe, 4. Grounding rail, 5. Grounding shoe, 6. Measuring vehicle body; Figure 2 Middle: 7. Guide wheel, 9. Detection box, 11. Battery, 13. Detection box controller, 16. Hub, 17. Motor controller, 18. Detection host; Figure 3 Middle: 10. Traveling wheel 101. Axle, 102. Synchronous belt, 103. Drive motor; Figure 4 Middle: 15. Obstacle detection integrated machine; Figure 5Middle: 91. Measuring table, 92. Motion block, 93. Lead screw, 94. Motor, 95. Guide rail. Specific implementation methods

[0042] In order to better illustrate the technical solution and implementation effect of the present invention, the technical solution and specific implementation method of the present invention are described in detail below with reference to the accompanying drawings.

[0043] like Figure 1-Figure 3 As shown, the measuring vehicle body 6 is located in the track beam 1; a battery 11 is provided on the measuring vehicle body 6 to provide power for the detection box controller 13, hub 16, motor controller 17 and detection host 18 on the measuring vehicle body 6; the running wheel 10 is located at the bottom of the measuring vehicle body 6, connected to the wheel axle 101, synchronous belt 102, and drive motor 103, and driven by the drive motor 103; the guide stabilization device mainly relies on the guide wheel 7 for stable walking. The guide wheel 7 is located at the upper and lower positions on the front and rear sides of the measuring vehicle body 6 to ensure the smoothness of the measuring vehicle body 6 when moving straight or turning.

[0044] like Figure 4 As shown, the obstacle detector 15 is located at the front and rear ends of the measuring vehicle body 6. It automatically issues an alarm and executes an extension command when the detection box 9 and the measuring gauge 91 on the measuring vehicle body 6 pass through obstacles, especially when passing through a track expansion joint. The principle and execution process of the detection box 9 extension and contraction are as follows: During the operation of the measuring vehicle body 6, it is inevitable to pass through a track expansion joint. Because the track beam is not a complete single track beam, but rather an assembly of multiple track beams, there will be an expansion gap between two adjacent track beams 1. When the measuring vehicle body 6 passes through the expansion joint, the probe of the measuring gauge 91 can get stuck in the expansion joint and subsequently break.

[0045] like Figure 5 As shown, to prevent the probe of measuring gauge 91 from breaking or being damaged when encountering a track expansion joint, a remotely controlled movable structure is designed on the detection box 9. Specifically, a motion block 92, a lead screw 93, and a guide rail 95 are positioned between the measuring gauge 91 and the motor 94 of the detection box 9. The measuring gauge 91 is connected to the motion block 92, and the lead screw 93 drives the motor 94 to extend and slide along the guide rail 95. The forward and reverse motion of the motor 94 transmits measurement information to the detection box controller 13 via an internal sensor, which then controls the movable structure through remote control. When the probe of measuring gauge 91 encounters a track expansion joint, this remote control allows it to avoid the joint.

[0046] When the measuring vehicle body 6 encounters foreign objects or passes through an expansion joint in the track beam 1, the obstacle detection unit 15 will sound an alarm 10-15 meters in advance. When the detection host 18 receives the alarm from the obstacle detection unit 15, its measurement signal will be transmitted to the remote access device via a mobile communication transmitter, a SIM card, and a mobile computer via WIFI networking, realizing fully automatic control. That is, when the detection vehicle is about to reach the expansion joint, the measuring vehicle body 6 stops, and the measuring gauge 91 on the detection box 9, together with the probe, is driven by the motor 94, and follows the motion block 92 along the lead screw 93 and the guide rail 95 to slide out of the track expansion joint measurement surface of the track beam 1. After the measuring vehicle body 6 passes the expansion joint, the detection box 9 stops running under the control of the above-mentioned measurement-related system, and then extends the measuring gauge 91 according to the transmission in the above-mentioned detection box 9 to continue measuring the inner cavity dimensions of the track beam.

[0047] like Figure 6 As shown, the measurement dimensions measured by the measuring table 91 on the detection box 9 will be transmitted to the remote client through a laptop computer and a 4G signal for information collection and processing; at the same time, during the measurement walking process, the obstacle detection integrated 15 is used to detect obstacles and track expansion joints in the measurement process, and the start, stop and extension functions are realized through the transmission of the motor 94 according to the instructions issued by the automatic control system set by the remote client.

[0048] like Figure 7 、 Figure 8 As shown, a testing method for an empty rail track beam inner cavity dimension measuring vehicle of the present invention is to transmit the value measured by the measuring table 91 of the detection box 9 to a WIFI mobile processing device through an internal sensor, and then transmit the data information to a remote control device through a mobile device communication transmitter. The remote control device generates an instantaneous measurement "dimensional tolerance data value chart" and "dimensional tolerance data wave line chart" by a signal receiver and signal data image processing software.

[0049] The measurement values ​​of the "Dimension Tolerance Data Value Chart" include probe position information, probe measurement values, measurement frequency, and measurement time; the measurement acquisition frequency of each item in the Dimension Tolerance Data Value Chart can be set according to different track beam working conditions.

[0050] like Figure 8As shown, the present invention provides a method for measuring the inner dimensions of an empty rail beam. The measurement item data of the "dimensional tolerance data wave line diagram" generated by the above technical solution includes five groups: A, B, C, D, and E. Group A is the measurement wave line values ​​of each section along the entire process: - left lower guide, - left upper guide, - left running board, - right lower guide; - right running board, - right upper guide, - top; Group B is: lower guide width; Group C is: upper guide width; Group D is: running height difference; Group E is: left inner height and right inner height. The longitudinal coordinate values ​​and transverse coordinate values ​​of each group of data are the dimensional tolerance and distance setting values ​​of the detection section. The setting values ​​can be set according to the rail beam measurement working conditions and production needs.

[0051] The “Dimensional tolerance data wave line diagram” is combined with the “Dimensional tolerance data value chart” to automatically generate a track beam inner cavity dimension inspection report through data analysis software.

[0052] During the measurement of the inner dimensions of the empty rail track beam, the acquisition frequency and accuracy setting range of the measurement table 91 of the detection box 9 can be formulated according to the actual working conditions; the maximum acquisition frequency is 50 milliseconds, and the accuracy is 0.01mm~0.001mm.

[0053] The detection host 18 of the empty track beam inner cavity dimension measuring vehicle of the present invention stores the measurement data values ​​of the entire road section and the over-threshold data chart and wave line diagram, and automatically stops and re-inspects the over-threshold historical wave line section when the measuring vehicle body 6 reviews the repaired track beam inner cavity dimension section, and automatically generates a new track beam inner cavity dimension detection chart and wave line diagram by comparing the historical detection data.

[0054] It is worth noting that the terms "front, back, up, down, left, and right" mentioned in the technical solutions and embodiments of the present invention are intended only to illustrate the preferred embodiments of the technical solutions of the present invention and are not intended to limit the invention. Although the embodiments of the present invention have been described in detail, it is impossible to exhaust all known technologies encompassed by the fields of application of the technical solutions of the present invention. Those skilled in the art should understand that, without requiring creative effort, the technical solutions or some of the technical features described in the above embodiments may be modified or replaced by equivalents, and such modifications or replacements do not deviate from the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the present invention.

Claims

1. A vehicle for measuring the inner dimensions of an empty rail beam, comprising a drive device, a guide and stabilization device, an obstacle detection device, an electrical control device, a data detection device, and a data processing system; characterized in that: The driving device is provided with a battery (11), a running wheel (10), a wheel axle (101), a synchronous belt (102), and a driving motor (103) on the measuring vehicle body (6); the measuring vehicle body (6) is located in the inner cavity of the track beam (1); the running wheel (10) is located at the bottom of the measuring vehicle body (6) and is connected to the wheel axle (101), the synchronous belt (102), and the driving motor (103); the guiding stabilizing device includes a guide wheel (7); the guide wheel (7) is located at the measuring vehicle body (6) at both ends of the front and rear sides; the obstacle detection device is provided with an obstacle detection integrated machine (15); the obstacle detection integrated machine (15) is located at the front and rear ends of the measuring vehicle body (6); the electrical control device includes a power supply rail (2), a power receiving shoe (3), a grounding rail (4), a grounding shoe (5), an integrator (16), and a motor controller (17); the power receiving shoe (3) and the grounding shoe (5) are located on the side of the track beam (1) and are in friction contact with the power supply rail (2) and the grounding rail (4); the The data detection device comprises a detection box (9), a measuring table (91), a motion block (92), a lead screw (93), a motor (94), and a guide rail (95); a detection box controller (13), and a detection host (18); the detection box (9) is located around a measuring vehicle body (6); the data processing system comprises a sensor, a signal receiver, a WIFI mobile processing device, a communication transmitter, a remote control device, and signal data image processing software; the measuring table (91) of the detection box (9) is connected to the motion block (92); and the guide rail (95) is extended and slid under the drive of the motor (94) through the lead screw (93); the forward and reverse driving of the motor (94) transmits the measurement information to the detection box controller (13) through an internal sensor, and the detection box controller (13) is then controlled through a remote movable control structure; the telescopic sliding of the measuring table (91) of the detection box (9) is automatically executed by the instruction set by the remote control client device through the alarm information issued by the obstacle detection integrated machine (15).

2. The method for measuring the inner dimensions of an empty rail beam according to claim 1, characterized in that: The values ​​measured by the measuring table (91) of the detection box (9) are transmitted to a WIFI mobile processing device through an internal sensor, and then the data information is transmitted to a remote control device through a mobile device communication transmitter. The remote control device generates an instantaneous measurement dimensional tolerance data value chart and a dimensional tolerance data wave line chart by a signal receiver and signal data image processing software.

3. The method for measuring the inner dimensions of an empty rail beam according to claim 2, characterized in that: The measurement values ​​of the dimensional tolerance data value chart include probe position information, probe measurement values, measurement frequency, and measurement time; the measurement acquisition frequency of each item of the dimensional tolerance data value chart is set automatically.

4. The method for measuring the inner dimensions of an empty rail beam according to claim 2, characterized in that: The dimensional tolerance data wave line diagram measurement item data includes five groups: (A), (B), (C), (D), and (E); the (A) group is the measured wave line values ​​of each section of the entire process; namely: - lower left guide, - upper left guide, - left running board, - lower right guide; - right running board, - upper right guide, - top; the (B) group is: lower guide width; the (C) group is: upper guide width; the (D) group is: running height difference; the (E) group is: inner height (left inner height, right inner height).

5. The method for measuring the inner dimensions of an empty rail beam according to claim 2, characterized in that: The longitudinal coordinate values ​​and transverse coordinate values ​​of each group of data in the dimensional tolerance data wave line diagram are the dimensional tolerance and distance setting values ​​of the detection section, and the setting values ​​are set automatically.

6. The method for measuring the inner dimensions of an empty rail beam according to claim 2, characterized in that: The dimensional tolerance data wave line diagram is combined with the dimensional tolerance data value chart to automatically generate a track beam inner cavity dimension detection report through data analysis software.

7. The method for measuring the inner cavity dimensions of an empty rail beam according to claim 2, characterized in that: The acquisition frequency and accuracy setting range of the measurement table (91) of the detection box (9) are formulated according to actual working conditions; the maximum acquisition frequency is 50 milliseconds, and the accuracy is 0.01mm to 0.001mm.

8. The method for measuring the inner cavity dimensions of an empty rail beam according to claim 2, characterized in that: The detection host (18) stores the measurement data values ​​of the entire road section and the data chart and wave line diagram of the exceeding threshold value, and automatically stops and rechecks the track beam inner cavity size section exceeding the threshold value historical wave line section when the measurement vehicle body (6) reviews the repaired track beam inner cavity size section, and automatically generates a new track beam inner cavity size detection chart and wave line diagram by comparing the historical detection data.

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