A crane train vehicle anti-lifting protection system

Abstract

This utility model discloses a crane-train vehicle anti-lifting protection system, including a machine room switch, a main unit, a display screen, a system switch, a laser anti-lifting system, and a weighing anti-lifting protection system. The laser anti-lifting system includes four laser sensors, an I / O unit, and a spreader-mounted switch. The four laser sensors are installed at the four corners of the container spreader's lower frame and are electrically connected to the I / O unit. The I / O unit, the spreader-mounted switch, and the machine room switch are sequentially connected for communication. The weighing anti-lifting protection system includes a voltage acquisition unit, a current sensor, and a power acquisition unit. The voltage acquisition unit and current sensor are installed inside the frequency converter of the hoisting mechanism's motor. Both the voltage acquisition unit and current sensor are electrically connected to the power acquisition unit, which is communicatively connected to the machine room switch. This utility model achieves accurate detection of the train's undercarriage and lifting status, reducing errors caused by single technologies and improving the system's detection accuracy and safety.

Description

Technical Field

[0001] This utility model belongs to the technical field of railway crane anti-lifting system, and particularly relates to a crane and train vehicle anti-lifting protection system. Background Technology

[0002] Currently, most solutions in the application of anti-lifting protection systems for train cranes rely on single sensors or traditional communication methods to monitor equipment status, resulting in problems such as untimely response, high false alarm rates, and insufficient system scalability. Furthermore, traditional solutions suffer from insufficient accuracy in laser positioning and weight calibration, making it difficult to meet the safety requirements of modern railway transportation.

[0003] Therefore, based on these issues, there is an urgent need to develop a dual protection system that can improve the accuracy and reliability of real-time monitoring and protection of the system. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a crane and train vehicle anti-lifting protection system. This system achieves accurate detection of the train's undercarriage and lifting status by cooperating with two modules: laser anti-lifting and weighing anti-lifting. This reduces errors caused by single technologies and improves the system's detection accuracy and overall safety.

[0005] This utility model is implemented as follows: a crane and train vehicle anti-lifting protection system includes a computer room switch, a host, a display screen and a system switch. The computer room switch is communicatively connected to the host, and the display screen and system switch are communicatively connected to the host.

[0006] It also includes a laser anti-lifting system and a weighing anti-lifting protection system; the laser anti-lifting system includes four laser sensors, an I / O unit, and a spreader rack switch. The four laser sensors are respectively installed at the four corners of the container spreader rack. The laser sensors are used to detect the distance between the container spreader rack and the train platform when the container is in the case of a container, and obtain the current gap between the container and the train platform; the four laser sensors are electrically connected to the I / O unit, the I / O unit is communicatively connected to the spreader rack switch, and the spreader rack switch is communicatively connected to the computer room switch;

[0007] The weighing anti-lifting protection system includes a voltage collector, a current sensor, and a power acquisition unit. The voltage collector and current sensor are installed inside the frequency converter of the hoisting mechanism motor to collect the voltage and current values ​​of the motor, respectively. The power acquisition unit is installed on one side of the frequency converter of the hoisting mechanism motor to calculate the load weight of the crane based on the collected voltage and current data. The voltage collector and current sensor are both electrically connected to the power acquisition unit, and the power acquisition unit is communicatively connected to the computer room switch.

[0008] In the above technical solution, preferably, the four laser sensors are installed on the sides of the four corners of the container spreader.

[0009] In the above technical solution, preferably, the IO unit and the spreader rack switch are installed on the container spreader rack.

[0010] In the above technical solution, preferably, voltage acquisition devices and current sensors are installed in the frequency converters of the two motors of the lifting mechanism, and power acquisition units are installed on one side of the frequency converters of the two motors.

[0011] In the above technical solution, preferably, the computer room switch, host, display screen and system switch are installed in the crane operator's cab.

[0012] The advantages and positive effects of this utility model are:

[0013] 1. This utility model incorporates a laser anti-lifting system and a weighing anti-lifting protection system. The four laser sensors of the laser anti-lifting system are installed at the four corners of the container spreader's underframe, preventing mechanical obstruction from affecting the sensor measurements and ensuring detection accuracy. The voltage and current sensors of the weighing anti-lifting protection system are installed inside the hoisting mechanism motor's frequency converter, with the power acquisition unit installed on one side of the motor's frequency converter. By collecting the hoisting mechanism motor's voltage and current, the lifting weight is displayed in real time. Both the laser and weighing anti-lifting systems detect sudden weight changes and distance anomalies caused by F-TR lock engagement, preventing blind operation that could lift the railway vehicle and ensuring the safety of loading and unloading operations.

[0014] 2. This utility model analyzes and judges the gap value collected by the laser sensor to detect the separation state of the container and the wagon. It calculates and detects the lifting weight in real time by measuring the current and voltage values. When the gap between the container body and the train floor changes little or no, or when the actual lifting weight differs significantly from the normal lifting weight, the system automatically determines the abnormality and triggers the protection mechanism, realizing redundant protection against lifting of the train wagon and achieving fast and reliable protection.

[0015] 3. This utility model is based on laser sensors and current and voltage sensors as the raw data for signal acquisition. It designs a system for judging the hook-lock status of train couplers when a crane lifts a container transported by train. Without relying on any mechanical force-taking weight sensor, this system can completely replace the traditional mechanical force-taking weight sensor for protection. It uses non-contact laser sensors and current and voltage sensors for measurement, which are less affected by mechanical wear and environmental factors, are easy to maintain, and are very suitable for repairing and replacing traditional sensor solutions.

[0016] 4. The lifting detection information is fed back to the crane operator in real time through the display screen installed in the driver's cab, which is easy to view and will promptly alarm in case of overload. Attached Figure Description

[0017] The technical solutions of the embodiments of this application will be further described in detail below with reference to the accompanying drawings. However, it should be understood that these drawings are designed for illustrative purposes only and are not intended to limit the scope of this application. In addition, unless otherwise specified, these drawings are only intended to conceptually illustrate the structural construction described herein and are not necessarily drawn to scale.

[0018] Figure 1 This is a schematic diagram of the crane and train vehicle anti-lifting protection system of this utility model;

[0019] Figure 2 This is a structural diagram showing the installation position of the laser sensor of this utility model;

[0020] Figure 3 This is a structural diagram showing the installation location of the IO unit and the switch mounted on the hoist of this utility model;

[0021] Figure 4 This is a structural diagram showing the installation location of the weighing anti-lifting protection system of this utility model;

[0022] Figure 5 This is an installation diagram of the crane operator's cab equipment according to this utility model.

[0023] In the diagram: 1. Laser sensor; 2. I / O unit; 3. Spreader rack switch; 4. Server room switch; 5. Voltage acquisition unit; 6. Current sensor; 7. Power acquisition unit; 8. Main unit; 9. System switch; 10. Display screen; 11. Container spreader unloading; 12. Container spreader mounting; 13. Lifting mechanism motor frequency converter. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings:

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", 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.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection," "joining," and "installation" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Please see Figures 1-5 The present invention provides a crane and train vehicle anti-lift protection system, including a computer room switch 4, a host 8, a display screen 10, a system switch 9, a laser anti-lift system and a weighing anti-lift protection system. The computer room switch 4 is communicatively connected to the host 8, and the display screen 10 and the system switch 9 are communicatively connected to the host 8.

[0028] The laser anti-lifting system includes four laser sensors 1, an I / O unit 2, and a spreader rack switch 3. The four laser sensors 1 are respectively installed along the long sides of the four corners of the container spreader rack 11, or, as needed, along the short sides of the four corners. The laser sensors 1 are used to detect the distance between the container spreader rack 11 and the train platform when the container is attached, thus obtaining the current gap between the container and the train platform. The four laser sensors 1 are electrically connected to the I / O unit 2, the I / O unit 2 is communicatively connected to the spreader rack switch 3, and the spreader rack switch 3 is communicatively connected to the data center switch 4. Through the laser anti-lifting system, the current gap between the container and the train platform can be obtained in real time, and the separation status of the container from the train platform can be detected, achieving fast and reliable protection.

[0029] The weighing anti-lifting protection system includes a voltage collector 5, a current sensor 6, and a power acquisition unit 7. The voltage collector 5 and current sensor 6 are installed inside the frequency converter 13 of the hoisting mechanism motor, respectively, to collect the voltage and current values ​​of the motor. The power acquisition unit 7 is installed on one side of the frequency converter 13 of the hoisting mechanism motor, and is used to calculate the crane load weight based on the collected voltage and current data. Both the voltage collector 5 and current sensor 6 are electrically connected to the power acquisition unit 7, and the power acquisition unit 7 is communicatively connected to the switchboard 4 in the computer room. Through the weighing anti-lifting protection system, the lifting weight is detected in real time. When there is a significant difference between the actual lifting weight and the normal lifting weight, it can be determined that the container lock has hooked, achieving redundant protection against lifting of the train wagon.

[0030] In a preferred embodiment, four laser sensors 1 are respectively installed on the sides of the four corners of the container spreader frame 11, which can identify the distance between the spreader and the train vehicle at a relatively close distance and are not obstructed by mechanical structures, ensuring that the laser sensors 1 can identify stably and accurately.

[0031] In a preferred embodiment, the IO unit 2 and the spreader rack switch 3 are installed on the container spreader rack 12 to avoid signal attenuation and ensure the stability of signal transmission.

[0032] In a preferred embodiment, voltage acquisition units 5 and current sensors 6 are installed in the frequency converters of the two motors of the lifting mechanism, and power acquisition units 7 are installed on one side of the frequency converters of the two motors to redundantly acquire motor data and avoid false alarms caused by fluctuations in motor voltage and current.

[0033] In a preferred embodiment, the computer room switch 4, host 8, display screen 10, and system switch 9 are installed in the crane operator's cab, facilitating the operator's operation of starting, interacting with, and shutting down the system after boarding. The display screen 10 can also be replaced with a handheld terminal or other devices to facilitate remote monitoring and interaction with the system by the operator and other staff.

[0034] The specific working process of this utility model is as follows:

[0035] After the train arrives at the work location, the crane operator turns on the system via system switch 9, and the crane power supply provides power to the system and establishes a communication connection.

[0036] When the crane lifts the container, four laser sensors 1 measure the distance between the container spreader frame 11 and the truck bed at their respective positions. This information is collected by the I / O unit 2, which packages the collected information and sends it to the spreader frame switch 3. The spreader frame switch 3 converts the electrical signal into an optical signal and transmits the information to the data center switch 4. Simultaneously, the voltage acquisition unit 5 and the current sensor 6 collect the current and voltage information of the lifting mechanism motor inverter 13. This information is then packaged and converted into an optical signal by the power acquisition unit 7 and transmitted to the data center switch 4.

[0037] The computer room switch 4 converts optical signals into electrical signals and transmits the information to the host 8.

[0038] The host 8 is responsible for receiving and processing laser information and voltage and current information, converting them into distance and weight information, detecting any abnormalities in the lifting distance and weight information, and transmitting the status information to the display screen 10 in the driver's cab. The display screen 10 in the driver's cab displays the distance and weight information in real time. If any of them are abnormal, the information is fed back to the crane's own PLC control system, stopping the crane operation, identifying the padlocks of the container and the train, accepting further processing, and alarming on the display screen 10 in the driver's cab.

[0039] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. A crane / train vehicle anti-lifting protection system, comprising a computer room switch, a host, a display screen, and a system switch, wherein the computer room switch is communicatively connected to the host, and the display screen and system switch are communicatively connected to the host; characterized in that: It also includes a laser anti-lifting system and a weighing anti-lifting protection system; the laser anti-lifting system includes four laser sensors, an I / O unit, and a spreader rack switch. The four laser sensors are respectively installed at the four corners of the container spreader rack. The laser sensors are used to detect the distance between the container spreader rack and the train platform when the container is in the case of a container, and obtain the current gap between the container and the train platform; the four laser sensors are electrically connected to the I / O unit, the I / O unit is communicatively connected to the spreader rack switch, and the spreader rack switch is communicatively connected to the computer room switch; The weighing anti-lifting protection system includes a voltage collector, a current sensor, and a power acquisition unit. The voltage collector and current sensor are installed inside the frequency converter of the hoisting mechanism motor to collect the voltage and current values ​​of the motor, respectively. The power acquisition unit is installed on one side of the frequency converter of the hoisting mechanism motor to calculate the load weight of the crane based on the collected voltage and current data. The voltage collector and current sensor are both electrically connected to the power acquisition unit, and the power acquisition unit is communicatively connected to the computer room switch.

2. The crane and train vehicle anti-lifting protection system according to claim 1, characterized in that: Four laser sensors are installed on the sides of the four corners of the container spreader.

3. The crane and train vehicle anti-lifting protection system according to claim 1, characterized in that: The IO unit and the spreader rack switch are installed on the container spreader rack.

4. The crane and train vehicle anti-lifting protection system according to claim 1, characterized in that: The lifting mechanism has voltage acquisition devices and current sensors installed in the frequency converters of the two motors, and power acquisition units are installed on one side of the frequency converters of the two motors.

5. The crane and train vehicle anti-lifting protection system according to claim 1, characterized in that: The computer room switch, host, display screen, and system switch are installed in the crane operator's cab.

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