A detection and early warning device for preventing lifting during loading and unloading of railway container cars

Abstract

A detection and early warning device for preventing lifting during loading and unloading of railway container cars includes: a data acquisition system and a spreader trolley position sensor. The data acquisition system includes a slide control unit, wherein: the data acquisition system has a sensor slide, which is mounted on a slide bracket, and the slide bracket is fixed to the bottom of the box girder of the traveling section of the gantry crane. The sensor slide can move vertically, and a sensor group is installed on the sensor slide, including a first sensor, a second sensor, and a third sensor. The spreader trolley position sensor is installed on the main beam of the gantry crane and is used to sense the position of the spreader trolley. The slide control unit is used to control the vertical movement of the sensor slide, and the slide control unit includes a controller, a driver, a fifth sensor, and a sixth sensor. The slide control unit is connected to the sensor slide through the driver.

Description

Technical Field

[0001] This invention relates to the field of anti-lifting during loading and unloading of railway container wagons, and more specifically, to a detection and early warning device for preventing lifting during loading and unloading of railway container wagons. Background Technology

[0002] With the rapid development of the logistics industry, containerized transportation is gradually becoming a trend in freight transport, and railway containerized transportation is also developing rapidly in railway freight. In the railway container loading and unloading system, due to the widespread use of F-TR locks on railway container wagons, train derailment accidents frequently occur during the lifting process.

[0003] The F-TR lock is a new type of container lock independently developed in my country, used to secure containers to railway container flatcars. The F-TR lock features a unique eagle-head structure, with three beveled surfaces acting on the corner fittings of the container. To ensure the F-TR lock functions effectively, when installing it on the container flatcar, the eagle heads are aligned at the same end and in the same direction, with the two ends facing opposite directions. The installation position of the F-TR lock on the container flatcar is as follows: Figure 1 As shown.

[0004] Compared to other locks, F-TR locks have advantages such as simple structure, good locking stability, and smooth operation, and are widely used on container flatcars. However, due to the special structure of F-TR locks, the lock head is prone to not fully disengaging during container lifting, leading to accidents where the container is lifted along with the flatcar, often resulting in huge economic losses and adverse social impact. Summary of the Invention

[0005] This invention provides a detection and early warning device for preventing lifting during loading and unloading of railway container cars, in order to solve the problems existing in the prior art.

[0006] To achieve the above objectives, the present invention provides a detection and early warning device for preventing lifting during loading and unloading of railway container wagons, comprising: a data acquisition system and a spreader trolley position sensor, wherein the data acquisition system includes a slide control unit, wherein:

[0007] The data acquisition system has a sensor slide, which is mounted on a slide bracket. The slide bracket is fixed to the bottom of the box girder of the traveling section of the gantry crane. The sensor slide can move vertically. A sensor group is installed on the sensor slide, which includes a first sensor, a second sensor, and a third sensor. The first sensor is aligned with the upper plane of the container flatcar's underframe. The second sensor is located 80mm to 100mm above the first sensor and is used to indicate the upper limit of container lifting. The third sensor is installed 80mm above the lower plane of the container flatcar's underframe and is used to indicate the lower limit of the container flatcar's bottom position.

[0008] The position sensor of the spreader trolley is installed on the main beam of the gantry crane and is used to sense the position of the spreader trolley.

[0009] The slide control unit controls the vertical movement of the sensor slide. The slide control unit includes a controller, a driver, a fifth sensor, and a sixth sensor. The slide control unit is connected to the sensor slide via the driver, and the sensor group can move vertically together with the sensor slide. The controller is connected to the fifth and sixth sensors. The fifth sensor is mounted obliquely downwards, and the sixth sensor is mounted horizontally. The fifth sensor measures the upper surface of the container flatcar's underframe, and the sixth sensor detects whether there is a container obstructing the view. Based on the data sensed by the fifth and sixth sensors, the controller controls the sensor slide to move to the corresponding position via the driver of the slide control unit.

[0010] In one embodiment of the present invention, there are two data acquisition systems, each corresponding to a front and rear F-TR lock on the same side.

[0011] In one embodiment of the present invention, the slide bracket is installed at a position 680mm inside the F-TR lock.

[0012] In one embodiment of the present invention, a fourth sensor is also installed on the sensor slide. The fourth sensor is installed 20mm above the second sensor. The fourth sensor is used to correct the error caused by the spring rebound of the train bogie when the container is lifted.

[0013] In one embodiment of the present invention, the first sensor, the second sensor, the third sensor and the fourth sensor are all laser rangefinders.

[0014] In one embodiment of the present invention, both the fifth sensor and the sixth sensor are laser rangefinders.

[0015] In one embodiment of the present invention, the anti-lifting detection and early warning device for loading and unloading railway container cars further includes a monitoring system and a monitoring camera. The monitoring camera is used to collect real-time monitoring images from multiple angles and output them to the monitoring system. The monitoring system receives lifting signals from the spreader. The data acquisition system is connected to the monitoring system through a data transmission device. The monitoring system is used to perform audible and visual early warnings and output IO control signals.

[0016] The railway container car loading and unloading anti-lifting detection and early warning device provided by the present invention can monitor the state of separation of the container and lock during the container lifting operation, and alarm for dangerous situations where the lock is not released, effectively preventing accidents caused by the lifting of the special flatcar. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram showing the installation position of the F-TR lock on a container flatcar.

[0019] Figure 2 This is an overall schematic diagram of a railway container car anti-lifting detection and early warning device according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram showing the location of each sensor in the data acquisition system;

[0021] Figure 4 This is a schematic diagram showing the relative positions of the slide support and the gantry crane.

[0022] Figure 5 This is a schematic diagram showing the relative positions of the first to fourth sensors;

[0023] Figure 6 This is a schematic diagram showing the installation of the fifth and sixth sensors;

[0024] Figure 7 This is a flowchart of the slide control unit's operation.

[0025] Figure 8 This is a schematic diagram of the workflow of the present invention.

[0026] Explanation of reference numerals in the attached drawings: 1-Data acquisition system; 2-Position sensor of the trolley; 11-Slide control unit; 3-Monitoring system; 4-Monitoring camera; 01-First sensor; 02-Second sensor; 03-Third sensor; 04-Fourth sensor; 110-Controller; 111-Driver; 112-Fifth sensor; 113-Sixth sensor. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Figure 2 This is a schematic diagram of an embodiment of the anti-lifting detection and early warning device for loading and unloading railway container cars according to the present invention. Figure 2 As shown, the railway container car loading and unloading anti-lifting detection and early warning device provided by the present invention includes: a data acquisition system 1 and a spreader trolley position sensor 2. The data acquisition system 1 includes a slide control unit 11, wherein:

[0029] Data acquisition system 1 has a sensor slide, which is mounted on a slide bracket, such as... Figure 4 The diagram shows the relative positions of the slide support and the gantry crane. The slide support is fixed to the bottom of the box girder of the traveling section of the gantry crane. The sensor slide can move vertically, and a sensor group is installed on the sensor slide. The sensor group includes a first sensor 01, a second sensor 02, a third sensor 03, and a fourth sensor 04. Figure 5 This is a schematic diagram showing the relative positions of the first to fourth sensors. The first sensor 01 is aligned with the upper plane of the container flatcar's underframe. The second sensor 02 is located 80mm to 100mm above the first sensor 01 and is used to indicate the upper limit of container lifting. The third sensor 03 is installed 80mm above the lower plane of the container flatcar's underframe and is used to indicate the lower limit of the container flatcar's bottom position. The fourth sensor 04 is located approximately 20mm above the second sensor 02 and is used to correct the springback of the train bogie during hoisting. The fourth sensor 04 can be selected as needed.

[0030] like Figure 3 As shown, the spreader trolley position sensor 2 is installed on the main beam of the gantry crane to sense the position of the spreader trolley movement;

[0031] The slide control unit 11 controls the vertical movement of the sensor slide. The slide control unit 11 includes a controller 110, a driver 111, a fifth sensor 112, and a sixth sensor 113. The slide control unit 11 is connected to the sensor slide via the driver 111. The controller 110 is connected to the fifth sensor 112 and the sixth sensor 113. The fifth sensor 112 is installed facing downwards, and the sixth sensor 113 is installed horizontally. The fifth sensor 112 measures the upper surface of the container flatcar's underframe, and the sixth sensor 113 detects whether there is a container obstruction. Preferably, the installation height is 1000mm higher than the upper surface of the container flatcar's underframe. Based on the data sensed by the fifth sensor 112 and the sixth sensor 113, the controller 110 controls the sensor slide to move to the corresponding position via the driver 111 of the slide control unit 11. The fifth sensor 112 and the sixth sensor 113 can be mounted on a slide support or installed on a separate support. Figure 6 The diagram shows the installation of the fifth and sixth sensors.

[0032] In actual operation, due to the different horizontal levels of the railway tracks in the freight yard and the different types of flatcars, the positions of the upper plane of the container flatcar's underframe vary. Therefore, it is necessary to actually measure the position of the upper plane of the underframe and drive the sensor slide to move vertically so that the first sensor 01 (which indicates the reference plane of the flatcar) is aligned with the upper plane of the container flatcar's underframe. Figure 7 The diagram shown is a flowchart of the slide control unit.

[0033] In this invention, the data acquisition system 1 is generally set to two, corresponding to the front and rear F-TR locks on the same side respectively.

[0034] like Figure 4 As shown, the slide bracket is installed 680mm inside the F-TR lock. This distance can also be adjusted as needed to facilitate lifting warning.

[0035] In some embodiments of the present invention, a fourth sensor 04 is also installed on the sensor slide. The fourth sensor 04 is installed 20mm above the second sensor 02. The fourth sensor 04 is used to correct the error caused by the spring rebound of the train bogie when the container is lifted.

[0036] In one embodiment of the present invention, the first sensor 01, the second sensor 02, the third sensor 03 and the fourth sensor 04 are all laser rangefinders.

[0037] In one embodiment of the present invention, both the fifth sensor 112 and the sixth sensor 113 are laser rangefinders.

[0038] like Figure 1As shown, in one embodiment of the present invention, the anti-lifting detection and early warning device for loading and unloading railway container cars further includes a monitoring system 3 and a monitoring camera 4. The monitoring camera 4 is used to collect real-time monitoring images from multiple angles and output them to the monitoring system 3. The monitoring system 3 receives lifting signals from the spreader. The data acquisition system 1 is connected to the monitoring system 3 through a data transmission device. The monitoring system 3 is used to provide audible and visual early warnings and output I / O signals.

[0039] Figure 8 This is a schematic diagram of the workflow of the present invention. The workflow of the present invention is as follows:

[0040] (1) During the hoisting operation, when the hoisting trolley moves to the hoisting position, it triggers the hoisting trolley position sensor 2 and sends a lifting signal to the monitoring system 3 when the hoisting starts.

[0041] (2) The monitoring system 3 receives position signals and lifting signals, and collects signals from the first to the fourth sensors according to the status.

[0042] (3) During the hoisting process, the signals of the first sensor 01 to the fourth sensor 04 and the monitoring camera are collected in real time and transmitted to the controller in the driver's cab.

[0043] (4) The controller displays alarms and reminders based on the signal information from the three sensors, as well as other operations, and uses lights, sounds and other warnings.

[0044] Manual observation of the surveillance camera is used to check whether the lock has been released.

[0045] The specific processing method is as follows:

[0046] 1. If the distance to the first sensor 01 does not change, the data from the second sensor 02 is read. If the distance to the second sensor 02 changes, the container movement limit alarm is activated, and the lifting of the spreader trolley is stopped.

[0047] 2. If the distance of the first sensor 01 changes abruptly, the second sensor 02 and the fourth sensor 04 are read. If the second sensor 02 changes abruptly but the fourth sensor 04 does not, a beeping sound is emitted as a reminder. If the fourth sensor 04 changes abruptly, the container movement limit alarm is activated and the lifting of the spreader trolley is stopped.

[0048] 3. While processing the container sensors, the third sensor 03 is collected in real time. If a distance jump occurs, the spreader trolley will stop and issue a warning, and an audible and visual alarm will be triggered.

[0049] Observe whether the unlocking is complete by monitoring the camera.

[0050] Once one car section is hoisted, move it to the next car section and repeat the above steps.

[0051] The railway container car loading and unloading anti-lifting detection and early warning device provided by the present invention can monitor the state of separation of the container and lock during the container lifting operation, and alarm for dangerous situations where the lock is not released, effectively preventing accidents caused by the lifting of the special flatcar.

[0052] Those skilled in the art will understand that the accompanying drawings are merely schematic diagrams of one embodiment, and the modules or processes shown in the drawings are not necessarily essential for implementing the present invention.

[0053] Those skilled in the art will understand that the modules in the apparatus of the embodiments can be distributed in the apparatus of the embodiments as described in the embodiments, or they can be located in one or more devices different from this embodiment with corresponding changes. The modules of the above embodiments can be combined into one module, or they can be further divided into multiple sub-modules.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A detection and early warning device for preventing lifting during loading and unloading of railway container cars, characterized in that, include: The data acquisition system and the position sensor of the spreader trolley, wherein the data acquisition system includes a slide control unit, wherein: The data acquisition system includes a sensor slide, which is mounted on a slide bracket fixed to the bottom of the box girder of the gantry crane's traveling section. The sensor slide is capable of vertical movement. A sensor group is mounted on the sensor slide, comprising a first sensor, a second sensor, and a third sensor. The first sensor is aligned with the upper plane of the container flatcar's underframe. The second sensor is located 80mm to 100mm above the first sensor and is used to indicate the upper limit of container lifting. The third sensor is installed 80mm above the lower plane of the container flatcar's underframe and is used to indicate the lower limit of the container flatcar's bottom position. The position sensor of the spreader trolley is installed on the main beam of the gantry crane and is used to sense the position of the spreader trolley. The slide control unit controls the vertical movement of the sensor slide. The slide control unit includes a controller, a driver, a fifth sensor, and a sixth sensor. The slide control unit is connected to the sensor slide via the driver. The controller is connected to the fifth and sixth sensors. The fifth sensor is mounted obliquely downwards, and the sixth sensor is mounted horizontally. The fifth sensor measures the upper surface of the container flatcar's underframe. The sixth sensor detects whether a container is obstructing the view. Based on the data sensed by the fifth and sixth sensors, the controller, through the driver of the slide control unit, controls the sensor slide to move to the corresponding position. A fourth sensor is also mounted on the sensor slide, positioned 20mm above the second sensor. This fourth sensor is used to correct for errors caused by the springback of the train bogie during container lifting. The anti-lifting detection and early warning device for loading and unloading railway container cars also includes a monitoring system and a monitoring camera. The monitoring camera is used to collect real-time monitoring images from multiple angles and output them to the monitoring system. The monitoring system receives lifting signals from the spreader. The data acquisition system is connected to the monitoring system through a data transmission device. The monitoring system is used for audible and visual early warning and outputting IO control signals.

2. The anti-lifting detection and early warning device for loading and unloading railway container cars according to claim 1, characterized in that, There are two data acquisition systems, one for each of the front and rear F-TR locks on the same side.

3. The anti-lifting detection and early warning device for loading and unloading railway container cars according to claim 2, characterized in that, The slide bracket is installed 680mm inside the F-TR lock.

4. The anti-lifting detection and early warning device for loading and unloading railway container cars according to claim 1, characterized in that, The first, second, third, and fourth sensors are all laser rangefinders.

5. The anti-lifting detection and early warning device for loading and unloading railway container cars according to claim 1, characterized in that, Both the fifth and sixth sensors are laser rangefinders.

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