Anti-collision device for material delivery track car

Abstract

This utility model discloses a collision avoidance device for a material conveying railcar, belonging to the field of material conveying technology. It includes a collision avoidance mechanism and an electrical control unit. The collision avoidance mechanism includes a first mounting beam and a second mounting beam perpendicular to the travel end face of the material conveying railcar. A connecting crossbar is provided at the free end of the first mounting beam, and a rotatable pulley is provided at the free end of the second mounting beam. A pull rope switch is provided on the outer end face of the second mounting beam. The steel wire rope of the pull rope switch passes around the pulley and is connected to the connecting crossbar through an elastic component. The steel wire rope between the first and second mounting beams forms a flexible triggering structure. The electrical control unit includes a controller, which is electrically connected to the drive motor of the material conveying railcar, and the pull rope switch is electrically connected to the controller. This utility model achieves highly sensitive collision warning and instantaneous automatic braking, significantly improving the safety and reliability of railcar operation at low cost, and greatly reducing the risk of equipment damage and production interruption.

Description

Technical Field

[0001] This utility model belongs to the field of material conveying technology, and in particular relates to a collision prevention device for a material conveying railcar. Background Technology

[0002] In the production process of cardboard boxes, automated conveyor systems are widely used to achieve efficient flow of cardboard raw materials between various processes. This system typically consists of fixed tracks laid on the ground, transport trolleys that run smoothly on the tracks, and corresponding drive and control devices. The working principle of the conveyor system is as follows: operators neatly stack the cut cardboard and place it on the dedicated platform of the conveyor. Then, driven by an electric drive unit, the conveyor automatically runs along a preset track path, transporting the fully loaded cardboard raw materials to the designated next process station. After the cardboard is unloaded, the empty conveyor returns to the loading point, and this cycle repeats continuously.

[0003] Existing material conveying railcars generally lack effective or reliable collision protection mechanisms, or the anti-collision devices they employ suffer from problems such as insufficient sensitivity, delayed response, complex structure, and high cost. Specifically, either they lack active anti-collision mechanisms and rely solely on manual observation or physical limiting devices, resulting in a high risk of collisions and easy damage to equipment and materials; or they use rigid collision triggers, which can stop the vehicle but cannot provide early warning, still causing impact damage; some solutions that rely on electronic sensors (such as infrared and ultrasonic sensors) can perform non-contact detection, but are susceptible to vibration interference in the industrial environment, leading to false triggering or malfunction, and are complex and costly to maintain. Summary of the Invention

[0004] To address the problems existing in the prior art, this utility model provides a collision avoidance device for material conveying railcars, which achieves highly sensitive collision warning and instantaneous automatic braking, significantly improving the safety and reliability of railcar operation at low cost; its simple structure and anti-interference characteristics effectively overcome the defects of traditional rigid collisions causing large damage and electronic sensors being prone to failure, greatly reducing the risk of equipment damage and production interruption.

[0005] This utility model is implemented as follows: a material conveying railcar anti-collision device, wherein the material conveying railcar is set on a preset track and can move back and forth along the track, and a control cabinet is set on the material conveying railcar. The anti-collision device is characterized in that it includes an anti-collision mechanism set on the end face of the material conveying railcar and an electrical control unit set in the control cabinet.

[0006] The anti-collision mechanism includes a first mounting beam and a second mounting beam perpendicular to the end face of the conveying railcar. A connecting crossbar is provided at the free end of the first mounting beam, and a rotatable pulley is provided at the free end of the second mounting beam. A pull rope switch is provided on the outer end face of the second mounting beam. The wire rope of the pull rope switch passes around the pulley and is connected to the connecting crossbar through an elastic member. The wire rope between the first mounting beam and the second mounting beam forms a flexible trigger structure.

[0007] The electrical control unit includes a controller, which is electrically connected to the drive motor of the material conveying railcar, and the pull rope switch is electrically connected to the controller.

[0008] Furthermore, the first mounting beam and the second mounting beam are located on the same horizontal mounting line.

[0009] Furthermore, the first mounting beam and the second mounting beam are respectively positioned at the left and right edges near the end face of the conveying railcar.

[0010] Furthermore, the lower end faces of the first and second mounting beams are 15 to 30 centimeters above the ground.

[0011] Furthermore, the anti-collision mechanism is provided in two sets, which are respectively installed on the two end faces of the respective material conveying railcars.

[0012] Furthermore, the connecting crossbar is parallel to the end face of the conveying railcar's traveling end.

[0013] The advantages and technical effects of this utility model are as follows: By adopting the above technical solution, a highly sensitive mechanical triggering system is formed through the anti-collision mechanism set on the end face of the traveling end. This achieves highly sensitive collision warning and instantaneous automatic braking, significantly improving the safety and reliability of the railcar operation at low cost. Its simple structure and anti-interference characteristics effectively overcome the shortcomings of traditional rigid collisions, which cause significant damage and electronic sensor failure, greatly reducing the risk of equipment damage and production interruption.

[0014] The flexible triggering structure, consisting of a pull-cord switch and elastic components, allows for timely signal transmission when the railcar approaches an obstacle. This flexible design effectively avoids hard collisions and material tipping, reducing the risk of equipment damage and personnel injury, and protecting the safety of the railcar and surrounding equipment.

[0015] Once the pull rope switch is triggered, the signal will be immediately transmitted to the controller of the electronic control unit. The controller will quickly cut off the power to the drive motor, causing the railcar to stop moving and thus avoiding a collision.

[0016] The presence of elastic components ensures that the wire rope can effectively pull the pull rope switch after being triggered, while also providing a certain degree of buffering and reset capability; compared with more complex sensor (such as laser ranging, ultrasonic, infrared) anti-collision systems, this solution is more cost-effective. Attached Figure Description

[0017] Figure 1 This is a perspective view of the overall structure provided in an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the anti-collision mechanism provided in an embodiment of this utility model.

[0019] In the diagram: 1. Material conveying railcar; 2. Rail; 3. Control cabinet; 4. Anti-collision mechanism; 4-1. First mounting beam; 4-2. Second mounting beam; 4-3. Connecting crossbar; 4-4. Pulley; 4-5. Pull rope switch; 4-6. Elastic component. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0021] It should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] like Figure 1 and Figure 2 As shown, this application provides a collision avoidance device for a material conveying railcar. The material conveying railcar 1 is set on a preset track 2 and can reciprocate along the track 2. The material conveying railcar 1 is equipped with a control cabinet 3. The collision avoidance device includes a collision avoidance mechanism 4 set on the end face of the traveling end of the material conveying railcar 1 and an electrical control unit set in the control cabinet 3.

[0023] The anti-collision mechanism 4 includes a first mounting beam 4-1 and a second mounting beam 4-2 perpendicular to the travel end face of the conveyor railcar 1. A connecting crossbar 4-3 is provided at the free end of the first mounting beam 4-1, specifically, the connecting crossbar 4-3 is parallel to the travel end face of the conveyor railcar 1. A rotatable pulley 4-4 is provided at the free end of the second mounting beam 4-2. Specifically, a notch is provided at the free end of the second mounting beam 4-2, and the pulley 4-4 is mounted within the notch via a pivot. The pulley 4-4 is rotatably mounted on the second mounting beam 4-2 via the pivot, and the pulley 4-4 protrudes from the outer end face of the free end of the second mounting beam 4-2. A pull rope switch 4-5 is provided on the outer end face of the second mounting beam 4-2. Specifically, the pull rope switch 4-5 is an XY2-CH series pull rope switch manufactured by Telemecanique Sensors. The wire rope of the pull-cord switch 4-5 passes over the pulley 4-4 and is connected to the connecting crossbar 4-3 via an elastic member 4-6, specifically a tension spring. The wire rope located between the first mounting beam 4-1 and the second mounting beam 4-2 forms a flexible triggering structure.

[0024] The electrical control unit includes a controller, which is electrically connected to the drive motor of the material conveying railcar 1. The pull rope switch 4-5 is electrically connected to the controller. Specifically, the controller can be a Siemens S7-200 series PLC (Programmable Logic Controller). The pull rope switch 4-5 is connected to the input terminal (e.g., I0.0) of the PLC. The PLC program detects changes in the input signal. The output terminal (e.g., Q0.0) of the PLC is connected to the control input terminal of the motor driver, and the motor start and stop are controlled by the output signal.

[0025] Preferably, the first mounting beam 4-1 and the second mounting beam 4-2 are located on the same horizontal mounting line. Installing them on the same horizontal line ensures that the wire rope is subjected to uniform stress.

[0026] The first mounting beam 4-1 and the second mounting beam 4-2 are respectively positioned at the left and right edges near the travel end face of the conveyor railcar 1. This eliminates the blind spots on both sides that exist in the traditional single sensor with its center placement, resulting in wider coverage and better collision avoidance.

[0027] The lower end faces of the first mounting beam 4-1 and the second mounting beam 4-2 are 15-30 cm above the ground. This design avoids the chassis structure of the railcar 2 from below, preventing scraping against ground protrusions during operation; it matches the height of common equipment guardrails / material stacks from above, accurately covering collision risk areas; and it is centered to avoid the normal walking distance of personnel, significantly reducing the probability of accidental triggering.

[0028] Preferably, the anti-collision mechanism 4 is provided in two sets, and the two sets of anti-collision mechanisms 4 are respectively provided on the two end faces of the traveling end of the material conveying railcar 1.

[0029] By adopting the above technical solution, a highly sensitive mechanical triggering system is formed by the anti-collision mechanism 4 set on the end face of the traveling end. This achieves highly sensitive collision warning and instantaneous automatic braking, significantly improving the safety and reliability of the track vehicle 2 operation under the premise of low cost. Its simple structure and anti-interference characteristics effectively overcome the defects of traditional rigid collisions, such as large damage and easy failure of electronic sensors, and greatly reduce the risk of equipment damage and production interruption.

[0030] The flexible triggering structure, consisting of a pull-rope switch 4-5 and an elastic component 4-6, allows for timely signal transmission when the track car 2 approaches an obstacle. This flexible design effectively avoids hard collisions and material tipping, reducing the risk of equipment damage and personnel injury, and protecting the safety of the track car 2 and surrounding equipment.

[0031] Once the pull rope switch 4-5 is triggered, the signal will be immediately transmitted to the controller of the electronic control unit. The controller will quickly cut off the power to the drive motor, causing the track car 2 to stop moving, thereby avoiding a collision accident.

[0032] The presence of elastic components 4-6 ensures that the wire rope can effectively pull the pull rope switch 4-5 after being triggered, while also providing a certain degree of buffering and reset capability; compared with more complex sensor (such as laser ranging, ultrasonic, infrared) anti-collision systems, this solution is more cost-effective.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A collision avoidance device for a material conveying railcar, wherein the material conveying railcar is mounted on a preset track and can reciprocate along the track, and a control cabinet is mounted on the material conveying railcar, characterized in that, The anti-collision device includes an anti-collision mechanism installed on the end face of the conveyor railcar and an electrical control unit installed in the control cabinet; The anti-collision mechanism includes a first mounting beam and a second mounting beam perpendicular to the end face of the conveying railcar. A connecting crossbar is provided at the free end of the first mounting beam, and a rotatable pulley is provided at the free end of the second mounting beam. A pull rope switch is provided on the outer end face of the second mounting beam. The wire rope of the pull rope switch passes around the pulley and is connected to the connecting crossbar through an elastic member. The wire rope between the first mounting beam and the second mounting beam forms a flexible trigger structure. The electrical control unit includes a controller, which is electrically connected to the drive motor of the material conveying railcar, and the pull rope switch is electrically connected to the controller.

2. The anti-collision device for the material conveying railcar according to claim 1, characterized in that, The first mounting beam and the second mounting beam are located on the same horizontal mounting line.

3. The anti-collision device for the material conveying railcar according to claim 1 or 2, characterized in that, The first mounting beam and the second mounting beam are respectively located at the left and right edges of the end face of the conveying railcar.

4. The anti-collision device for the material conveying railcar according to claim 1 or 2, characterized in that, The lower end faces of the first and second mounting beams are 15-30 cm above the ground.

5. The anti-collision device for the material conveying railcar according to claim 1, characterized in that, The anti-collision mechanism is provided in two sets, which are respectively installed on the two end faces of the respective material conveying railcars.

6. The anti-collision device for the material conveying railcar according to claim 1, characterized in that, The connecting crossbar is parallel to the end face of the material conveying railcar.

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