Long rail transport locking state failure automatic alarm device

Abstract

The application discloses a long steel rail transportation locking state failure automatic alarm device, which comprises a roller horizontally arranged on a rail bearing cross beam, the roller is used for supporting the long steel rail, the roller is equipped with a pair of roller support plates used for mounting the roller, both ends of the roller are rotatably arranged on the roller support plates through shaft end heads, the bottom end of the roller support plate is fixed on the rail bearing cross beam, and the roller support plate is provided with mounting holes used for inserting the shaft end heads; the both ends of the roller are outwardly provided with a baffle, a detection gap is circumferentially arranged on the baffle, sensors used for detecting the detection gaps are arranged on both ends of the roller, the sensors on both ends are arranged on the front and rear sides of the roller respectively, the angles required for the detection gaps on both ends to rotate to the corresponding sensors are not equal, the sensor detection output end is connected with the detection signal input end of a PLC, and the alarm output end of the PLC is connected with the alarm terminal signal input end. The device can identify whether the steel rail is displaced and alarm, and the false alarm rate is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of rail transportation, and in particular to an automatic alarm device for failure of a locked state of long rail transportation. Background Art

[0002] When using a long rail transport vehicle to transport seamless long rails, the long rails need to be locked at a certain point on the vehicle to anchor them to the vehicle. This prevents the rails from moving longitudinally along the vehicle during transportation and causing safety accidents. The vehicle where the anchoring point is located is usually called a locking vehicle. The inherent equipment on the vehicle includes a locking beam that locks the rails and a rail-bearing beam that bears the weight of the rails. The current locking methods used for long rail transportation all rely on clamping the rails to generate frictional resistance for locking. Under complex transportation conditions, there is a possibility that the clamping mechanism will loosen, resulting in insufficient frictional resistance and locking failure. At the same time, with the help of visual recognition technology, high-definition cameras are installed near the rail locking points, and marking lines are painted on the rail surfaces near the locking points. The high-definition cameras capture the misalignment of the marking lines to identify whether the long rails have moved, determine whether the locking state has failed, and issue an alarm accordingly.

[0003] This detection method places very high demands on the camera's operational state. The transportation of long rails inevitably involves adverse weather conditions such as fog, rain, snow, strong winds, and dust, which hinder visual recognition. Furthermore, the inherent vibrations of the vehicle can affect the camera's operational state, leading to problems such as inability to identify and frequent misjudgments. This results in a high failure rate and low alarm accuracy. Therefore, a method is urgently needed to more quickly and accurately detect locking failures during transportation, enabling early response and ensuring transportation safety. Summary of the Invention

[0004] The present invention aims to solve the technical problems existing in the prior art and proposes an automatic alarm device for failure of the locked state of long rail transportation, which can identify whether the rail is displaced and alarm, thereby reducing the false alarm rate.

[0005] To achieve the above-mentioned object, the present invention provides an automatic alarm device for failure of a locked state of a long rail transport, comprising a roller horizontally arranged on a rail-supporting crossbeam, the roller being used to support the long rail, the roller being equipped with a pair of roller support plates for mounting the rollers, the two ends of the roller being rotatably mounted on the roller support plates via ends of rotating shafts, the bottom ends of the roller support plates being fixed to the rail-supporting crossbeam, and the roller support plates being provided with mounting holes for inserting ends of rotating shafts;

[0006] Both ends of the roller are provided with outwardly protruding ribs, and the spacing between the ribs at both ends is exactly equal to the width of the bottom end of the long rail. A detection notch is provided circumferentially on the rib, and sensors for detecting the detection notch are provided at both ends of the roller. The sensors at both ends are respectively arranged on the front and rear sides of the roller, and the angles required for the detection notches at both ends to be rotated to the corresponding sensors are not equal. The sensor detection output end is connected to the detection signal input end of the PLC, and the alarm output end of the PLC is connected to the signal input end of the alarm terminal.

[0007] In the above solution: there are multiple rollers on the same rail-supporting beam, and they are arranged at intervals horizontally.

[0008] In the above solution, only one roller support plate is provided between two adjacent rollers, and the two adjacent rollers share one roller support plate, which saves space and has a compact structure.

[0009] In the above solution, there are three detection notches on the same rib, and the detection notches on the ribs at both ends are staggered by 60 degrees. The sensors at both ends will have a time difference, thus ensuring continuous rotation rather than short-distance instantaneous rotation.

[0010] In the above solution, the mounting holes on the roller support plate are vertically arranged strip holes, and height adjustment mechanisms are provided between the two ends of the roller and the roller support plate. The height adjustment mechanisms at both ends support and adjust the height of the roller to ensure that the long rail is pressed against the roller.

[0011] In the above scheme: the height adjustment mechanism includes a spring support fixed on the support rail crossbeam and a rotating sleeve mounted on the end of the rotating shaft, the rotating sleeve is provided with a through hole for the end of the rotating shaft to pass through, and a spring is connected between the rotating sleeve and the spring support.

[0012] In the above scheme: the top of the spring support is concavely provided with a positioning groove for accommodating the bottom end of the spring, and the bottom of the rotating sleeve is convexly provided with a positioning column for the top end of the spring to be sleeved, that is, the upper and lower ends of the spring are provided with positioning structures to improve the installation efficiency of the spring.

[0013] In the above solution, the sensor is fixed to the rotating sleeve via a sensor mounting base. The sensor is an electromagnetic sensor. The sensor and the roller can move up and down simultaneously with the height adjustment mechanism, ensuring that the sensor and the roller are mounted in a relatively fixed position, avoiding the situation where the detection gap cannot be detected or there is deviation due to the roller moving up and down.

[0014] In the above scheme: an axial hole is coaxially provided in the middle of the roller, a roller shaft is provided in the roller shaft hole, and two bearings are arranged on the roller shaft at intervals, and are connected to the roller through the bearings to form a whole, and the two ends of the roller shaft are the rotating shaft ends, and both pass through the rotating sleeve and extend into the mounting hole of the roller support plate.

[0015] In the above solution, the mounting hole of the roller support plate is an upwardly open mounting notch, which is closed by a pressure plate covering the mounting notch. Both ends of the pressure plate are fixed to the roller support plate portions on the front and rear sides of the mounting notch by mounting screws. Using the mounting notch and pressure plate approach, only the pressure plate needs to be opened to expose the mounting notch. Compared with the side insertion method, this technical solution is more convenient for installing the roller and height adjustment mechanism, improving installation efficiency.

[0016] In summary, the beneficial effects of the present invention are as follows: it can support the long rails through rollers, and by detecting the rotation of the rollers pressed by the long rails, identify whether the rails are displaced and issue an alarm; its sensor does not contact the rollers, there is no external force, it is not easy to be damaged, and the durability of the sensor is greatly improved; the device is set on the inherent rail-bearing beam of the locking vehicle, and does not need to set up other components separately, saving space, and does not need to perform any operations every time the long rails are loaded and unloaded, which is more practical; two sensors are set, and the distances between the two sensors and the corresponding detection gaps are not equal, so two detection signals can be formed. The two detection signals can be used as a basis for judgment to reduce the distortion and misjudgment caused by the false triggering of the alarm by a single signal, and ensure that the state of the roller is truly identified. The long rail itself drives the mechanical mechanism to generate a simple rotational motion to trigger the sensor signal feedback, which is not affected by environmental factors such as weather, greatly reduces the failure rate caused by environmental factors, and improves the accuracy of the alarm. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of a long rail transport train set.

[0018] Figure 2 It is a schematic diagram of a single-section long rail transport vehicle.

[0019] Figure 3 It is a schematic diagram of a rail-supporting crossbeam and a long rail according to the present invention.

[0020] Figure 4 It is a partial cross-sectional view of the roller, sensor and rail-supporting beam of the present invention.

[0021] Figure 5 It is a schematic diagram of the roller of the present invention.

[0022] Figure 6 It is a left side view of the roller and sensor of the present invention.

[0023] In the figure: 1. Long rail; 2. Roller support plate; 2-1. Mounting hole; 3. Pressure plate; 3-1. Mounting screw; 4. Rotating sleeve; 4-1. Positioning column; 5. Spring; 6. Spring support; 7. Sensor mounting seat; 8. Sensor; 9. Rail-supporting beam; 10. Anchoring device; 11. Roller; 11-1. Side guard; 11-2. Detection notch; 12. Roller shaft; 13. Bearing. DETAILED DESCRIPTION

[0024] The present invention will be further described below by way of examples and in conjunction with the accompanying drawings:

[0025] In order to better understand this technical solution, the long rail transport vehicle is introduced as follows: Figure 1 、 2 As shown, when transporting long steel rails 1, multiple layers of long steel rails 1 are often placed together for transportation at one time, and the long steel rails 1 of each layer are fixed by multiple rail transport vehicles. Rail-supporting beams 9 corresponding to the number of layers are provided on both sides of each rail transport vehicle, and the rail-supporting beams 9 are used to support the long steel rails 1. Anchoring devices 10 for fixing the long steel rails 1 are provided in the middle of each rail transport vehicle, and the anchoring devices 10 of each rail transport vehicle correspond to different layers of long steel rails 1. In addition, the rail-supporting beams 9 on one and only one side of the same rail transport vehicle are provided with an automatic alarm device, and the automatic alarm devices on different rail transport vehicles are provided on rail-supporting beams 9 of different layers, for detecting the locking status of long steel rails 1 of different layers. A groove is provided on the top of the rail-supporting beam 9, and a plurality of automatic alarm devices for failure of the long steel rail transportation locking status of the present technical solution are provided adjacent to the groove.

[0026] like Figures 3 to 6 As shown, the present technical solution is an automatic alarm device for failure of the locked state of a long rail transport, comprising a horizontally arranged roller 11 for supporting the long rail 1, and each roller 11 is provided with a pair of roller support plates 2 for mounting the roller 11. The two ends of the roller 11 are rotatably mounted on the roller support plates 2 via the ends of the rotating shafts. The roller support plates 2 are fixed to the rail-supporting crossbeam 9, and the roller support plates 2 are provided with mounting holes 2-1 for inserting the ends of the rotating shafts. The top of the rail-supporting crossbeam 9 of this embodiment is provided with a groove for mounting the roller 11. The roller 11 is fixed in the groove of the rail-supporting crossbeam 9 via the roller support plates 2, and the top of the roller 11 is located outside the groove of the rail-supporting crossbeam 9.

[0027] Both ends of the roller 11 are provided with outwardly protruding ribs 11-1, and the spacing between the ribs 11-1 at both ends is exactly equal to the width of the bottom end of the long rail 1. The ribs 11-1 at both ends are used to limit the long rail 1 to prevent the long rail 1 from moving left and right. A detection notch 11-2 is provided circumferentially on the rib 11-1, and sensors 8 for detecting the detection notch 11-2 are provided at both ends of the roller 11. The angles required for the detection notches 11-2 to rotate to the corresponding sensor 8 are not equal. The detection output end of the sensor 8 is connected to the detection signal input end of the PLC, and the alarm output end of the PLC is connected to the signal input end of the alarm terminal. The alarm terminal is located in the cab of the train set. The sensor 8 of this embodiment is an electromagnetic sensor. The PLC of this embodiment is also equipped with a wireless transceiver, and the alarm terminal is also equipped with a wireless transceiver. The PLC and the alarm terminal are connected by wireless transmission, thereby transmitting the alarm signal to the alarm terminal in the cab.

[0028] There are three detection notches 11-2 on the same rib 11-1, and the detection notches 11-2 on the ribs 11-1 at both ends are staggered 60 degrees. The mounting holes 2-1 on the roller support plate 2 are vertically arranged strip holes. The ends of the rotating shafts at both ends of the roller 11 are also provided with height adjustment mechanisms. The height adjustment mechanisms at both ends support the roller 11, and the height of the roller 11 is adjusted by the height adjustment mechanisms to ensure that the long rail 1 is pressed against the roller 11, thereby ensuring that the roller 11 can rotate with the longitudinal movement of the long rail 1.

[0029] The height adjustment mechanism consists of a spring support 6 secured within a groove in the rail support beam 9 and a rotating sleeve 4 mounted on the end of the rotating shaft. The rotating sleeve 4 is provided with a through-hole for the end of the rotating shaft to pass through. The rotating sleeve 4 and spring support 6 are positioned vertically opposite each other, with a spring 5 positioned between them. The ends of the spring 5 are secured to the spring support 6 and rotating sleeve 4, respectively. The top of the spring support 6 is recessed with a positioning slot for accommodating the bottom end of the spring 5. The bottom of the rotating sleeve 4 features a protruding positioning post 4-1 for the top end of the spring 5 to fit over, making installation and securing easy.

[0030] To ensure that sensor 8 can stably detect detection notch 11-2, sensor 8 is fixed to rotating sleeve 4 via sensor mounting base 7. This ensures that the spacing between sensor 8 and roller 11 does not change, ensuring detection accuracy. Sensors 8 at both ends are staggered front and back. Only one roller support plate 2 is provided between two adjacent rollers 11, and the two adjacent rollers 11 share the same roller support plate 2, saving space and achieving a compact structure.

[0031] A coaxially oriented axial hole is provided in the center of the roller 11. A roller shaft 12 is disposed within the axial hole. Two bearings 13 are spaced apart on the roller shaft 12, which is integrally connected to the roller 11 via the bearings 13. Both ends of the roller shaft 12 extend out of the axial hole, pass through the rotating sleeve 4, and are then inserted into the mounting hole 2-1 of the roller support plate 2.

[0032] In this embodiment, the mounting hole 2-1 of the roller support plate 2 is an upwardly open mounting notch, which is sealed by a pressure plate 3 covering the mounting notch to prevent the roller 11 from falling out of the mounting notch. Both ends of the pressure plate 3 are fixed to the roller support plate 2 on the front and rear sides of the mounting notch by mounting screws 3-1.

[0033] When in use, the long rail 1 is pressed onto the roller 11, and under the action of the spring 5, the roller 11 is always in contact with the bottom of the rail and exerts a certain supporting force to ensure that the roller 11 is in close contact with the long rail 1, thereby ensuring that when the long rail 1 fails to lock and slides during transportation, it can drive the roller 11 to rotate, thereby detecting whether the long rail 1 is in a locked state.

[0034] During the transportation of the rails, if the locking state fails, the long rail 1 will undergo longitudinal displacement. Under the action of friction, it will drive the roller 11 to rotate. When the detection notch 11-2 of the rib 11-1 on one side of the roller 11 rotates to the sensor 8 on the same side, the electromagnetic induction of the sensor 8 is interrupted, and the first detection signal is issued. The roller 11 continues to rotate until the detection notch 11-2 of the rib 11-1 on the other side rotates to the position of the other sensor 8. The electromagnetic induction of the other sensor 8 is also interrupted, and the second detection signal is issued. After the PLC receives the detection signals of the two sensors 8, it sends an alarm signal to the alarm terminal, and the alarm prompt is issued through the alarm terminal. The alarm signal is triggered only when the detection signals of the two sensors 8 are met. That is, the two detection signals are used as the judgment basis to reduce the distortion and misjudgment caused by the alarm triggered by a single signal, ensuring that the status of the roller 11 is truly identified. After the alarm terminal issues the alarm prompt, the safety personnel immediately drive the train to slow down and brake, and arrange for the operator to relock the long rail 1.

Claims

1. An automatic alarm device for failure of locking state of long rail transportation, characterized by: The invention comprises a roller (11) horizontally arranged on a rail-supporting crossbeam (9), wherein the roller (11) is used to support a long steel rail (1), and the roller (11) is equipped with a pair of roller support plates (2) for mounting the roller (11), wherein both ends of the roller (11) are rotatably mounted on the roller support plates (2) via the ends of rotating shafts, and the bottom ends of the roller support plates (2) are fixed on the rail-supporting crossbeam (9), and the roller support plates (2) are provided with mounting holes (2-1) for inserting the ends of rotating shafts; Both ends of the roller (11) are provided with ribs (11-1) protruding outward, and the spacing between the ribs (11-1) at both ends is exactly equal to the width of the bottom end of the long rail (1). A detection notch (11-2) is provided circumferentially on the rib (11-1), and both ends of the roller (11) are provided with sensors (8) for detecting the detection notch (11-2). The sensors (8) at both ends are respectively arranged on the front and rear sides of the roller (11), and the angles required for the detection notches (11-2) at both ends to rotate to the corresponding sensors (8) are not equal. The detection output end of the sensor (8) is connected to the detection signal input end of the PLC, and the alarm output end of the PLC is connected to the signal input end of the alarm terminal.

2. The automatic alarm device for failure of the long rail transportation locking state according to claim 1, characterized in that: There are multiple rollers (11) on the same rail-supporting beam (9), and the rollers (11) are arranged at intervals horizontally.

3. The automatic alarm device for failure of the long rail transportation locking state according to claim 2, characterized in that: Only one roller support plate (2) is provided between two adjacent rollers (11), and the two adjacent rollers (11) share one roller support plate (2).

4. The automatic alarm device for failure of the long rail transportation locking state according to claim 1, characterized in that: There are three detection notches (11-2) on the same retaining edge (11-1), and the detection notches (11-2) on the retaining edges (11-1) at both ends are staggered by 60 degrees.

5. The automatic alarm device for failure of the long rail transportation locking state according to claim 1, characterized in that: The mounting holes (2-1) on the roller support plate (2) are vertically arranged strip holes, and height adjustment mechanisms are provided between the two ends of the roller (11) and the roller support plate (2). The height adjustment mechanisms at the two ends support the roller (11) and adjust its height.

6. The automatic alarm device for failure of the long rail transportation locking state according to claim 5, characterized in that: The height adjustment mechanism comprises a spring support (6) fixed on the rail support beam (9) and a rotating sleeve (4) sleeved on the end of the rotating shaft, wherein the rotating sleeve (4) is provided with a through hole for the end of the rotating shaft to pass through, and a spring (5) is connected between the rotating sleeve (4) and the spring support (6).

7. The automatic alarm device for failure of the long rail transportation locking state according to claim 6, characterized in that: The top of the spring support (6) is provided with a recessed positioning groove for accommodating the bottom end of the spring (5), and the bottom of the rotating sleeve (4) is provided with a convex positioning column (4-1) for the top end of the spring (5) to be sleeved.

8. The automatic alarm device for failure of the long rail transportation locking state according to claim 6, characterized in that: The sensor (8) is fixed on the rotating sleeve (4) via a sensor mounting seat (7), and the sensor (8) is an electromagnetic sensor.

9. The automatic alarm device for failure of the long rail transportation locking state according to claim 1, characterized in that: An axial hole is coaxially provided in the middle of the roller (11), a roller shaft (12) is provided in the axial hole of the roller (11), and two bearings (13) are provided on the roller shaft (12) at intervals, and the roller shaft (12) is connected to the roller (11) through the bearings (13) to form an integral body, and both ends of the roller shaft (12) are rotating shaft ends, and both pass through the rotating sleeve (4) and extend into the mounting hole (2-1) of the roller support plate (2).

10. The automatic alarm device for failure of the long rail transportation locking state according to claim 5, characterized in that: The mounting hole (2-1) of the roller support plate (2) is an upper-open mounting notch and is closed by a pressing plate (3) covering the mounting notch. Both ends of the pressing plate (3) are fixed to the roller support plate (2) portions at the front and rear sides of the mounting notch by mounting screws (3-1).

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