Method for preventing empty weight misloading of a container

Abstract

The application discloses a method for preventing empty and heavy container misloading, which calibrates the position of a container loading and unloading machine, especially the position of each batch of vehicles and the position of container loading, reads the weight of the loaded container through the container loading and unloading machine, judges whether any two containers are loaded on the same vehicle, and compares the weight information; if the comparison of the weight information does not exceed the set value, the container loading and unloading machine does not alarm, and normal loading has no influence; if the comparison of the weight information exceeds the set value, an alarm is given, and the container cannot continue to fall or the spreader cannot be unlocked and separated after falling. The method can prevent an empty container and a heavy container from being loaded on the same vehicle, cause a serious heavy loading accident of a train vehicle, avoid possible traffic accidents, ensure safety, and reduce the labor intensity of workers.

Description

TECHNICAL FIELD

[0001] The present application relates to a control method for preventing two empty containers from being loaded on the same vehicle. BACKGROUND

[0002] With the state increasing the efforts to adjust the transportation structure, the railway container transportation is growing rapidly, and the safety of railway container transportation is particularly important. In recent years, F-TR flat car loading and unloading accidents and container empty and heavy loading accidents occur from time to time, and the safety of railway container transportation is facing great challenges. The container empty and heavy loading accident refers to one empty container and one heavy container loaded on the same vehicle, which leads to serious weight deviation of the train vehicle, and the weight difference between the empty and heavy containers can reach 30 tons, which easily causes the vehicle to derail during operation, seriously affecting the safety of train operation. Especially on the passenger and freight mixed railway, the consequences of freight car derailment accident are unpredictable. Since the container is a closed shell, it is difficult to see whether it is loaded with goods with the naked eye, and the empty and heavy containers are the same in appearance, and are not specially distinguished, so it is easy to load the empty container as the heavy container or the heavy container as the empty container on the same vehicle. The measures taken at present are mainly to separate the empty and heavy containers and to load and unload the same container, and to prohibit the empty and heavy containers from being mixed and loaded due to other operations without completing the operation of one vehicle. However, there are often situations that the loading and unloading vehicles do not strictly implement the control measures for the sake of speed: the empty and heavy containers are placed nearby; one vehicle is not unloaded or loaded at the same time, and other vehicles are operated, resulting in mixed loading of empty and heavy containers. SUMMARY

[0003] The purpose of the present application is to provide a method for preventing the empty and heavy loading of containers, which overcomes the shortcomings of the prior art that cannot effectively control the empty and heavy loading of containers.

[0004] A method for preventing the empty and heavy loading of containers, characterized in that:

[0005] Step one, the position of the train is marked by the container loading and unloading machine, especially the position of each batch of vehicles arriving and the position of the loaded container, and the weight of the loaded container is read by the container loading and unloading machine;

[0006] Step two, when the container loading and unloading machine loads the container, the container loading and unloading machine automatically weighs the loaded container, records the weight and position information, and compares the position and weight information with the loaded containers in this batch;

[0007] Step three, when the plan position information comparison finds that two containers are loaded on the same vehicle, the weight information of the two containers is compared, if the weight information comparison does not exceed the set value, the container loading and unloading machine does not alarm, and the normal loading is not affected, if the weight information comparison exceeds the set value, the alarm is prompted, and the container cannot continue to fall or the spreader cannot be unlocked and separated after falling.

[0008] Step four, after the alarm prompt, the container handling machinery must lift the container off the vehicle flat position, the container can fall and the spreader can be unlocked and released, and subsequent operations can be carried out.

[0009] The advantages of the present application are that by installing a device for marking the position of the train on the existing container handling machinery, it is convenient to confirm whether any two containers in the batch are on the same vehicle. Since the two containers loaded on the same vehicle differ greatly in value from the containers of adjacent vehicles or other vehicles in the length direction of the train, it is easy to identify whether they are on the same vehicle. By installing a weighing device on the container handling machinery, the weight of each loaded container is recorded, and when the flat position information confirms that any two containers in the batch are on the same vehicle, the weight information of the two containers is compared, and when it is found that empty and heavy containers are mixed, the container handling machinery is prompted to alarm, and the container cannot continue to fall or the spreader cannot be unlocked and released after falling. The container handling machinery must lift the container off the vehicle flat position, and the container can fall and the spreader can be unlocked and released for subsequent operations. This effectively avoids the derailment of railway vehicles caused by serious weight deviation due to empty and heavy container misloading. The method of the present application accurately determines the loading position of the container and compares the weight by installing position and weight detection devices, and ensures safety through physical and technical security. Using this method can eliminate railway empty and heavy container misloading accidents, improve operation efficiency, and eliminate the existing practice of reducing operation efficiency to ensure operation safety, with significant economic benefits. The method of the present application can automatically alarm and prompt the misloading of empty and heavy containers, ensuring safety while reducing the labor intensity of the operating personnel. DETAILED DESCRIPTION

[0010] The existing container handling machinery is mainly container gantry cranes and container front cranes, which can be equipped with weight detection and weighing devices to measure the weight of the container in real time during loading and unloading, and then equipped with a device that can detect the operating position of the container to achieve detection of whether any two containers are loaded on the same vehicle.

[0011] Taking a container gantry crane as an example, a method for preventing misloading of empty and heavy containers, characterized by:

[0012] Step one: install magnetic nails and absolute value encoders at the large car running position of the container gantry crane, and install position detection switches on the main beam of the container gantry crane above the cargo line. The position of each batch of vehicles arriving and the position of the container loading are marked by the running position of the large and small cars of the container gantry crane, and the weight of each loaded container is recorded by the weight display or weighing device already installed on the container gantry crane.

[0013] Step two, when the container handling machinery loads the container column, the container handling machinery automatically weighs the loaded container, records the weight and position information, and compares the position and weight information with the loaded containers in this batch;

[0014] Step three, when the plane position information comparison finds that two containers are loaded on the same vehicle, the weight information of the two containers is compared again, if the weight information comparison does not exceed the set value, the container handling machinery does not alarm, and the normal loading has no effect, if the weight information comparison exceeds the set value, an alarm is prompted, and the container cannot continue to fall or the spreader cannot be unlocked and separated after falling;

[0015] Step four, after the alarm prompt, the container handling machinery must lift the container away from the vehicle plane position, so that the container can fall and the spreader can be unlocked and separated for subsequent operation.

[0016] The container portal crane and the container reach stacker can also be equipped with a navigation system, as long as the positioning accuracy is not more than 1 meter, the position of each batch of vehicle arrival and the position of container loading can be calibrated, so as to judge whether any two containers are loaded on the same vehicle, and then record the weight of each loaded container through the weight detection or weighing device installed on the container portal crane and the container reach stacker, compare the weight information, prevent an empty container and a heavy container from being loaded on the same vehicle, and avoid possible traffic accidents.

[0017] Taking the reach stacker as an example, a method for preventing incorrect loading of empty and heavy containers, characterized by:

[0018] Step one, when the reach stacker unloads the train, the reach stacker navigation system calibrates the position of the train column, especially the position of each batch of vehicle arrival and the position of container loading, and reads the weight of the loaded container through the container handling machinery;

[0019] Step two, when the reach stacker loads the container column, the reach stacker automatically weighs the loaded container, records the weight and position information, and compares the position and weight information with the loaded containers in this batch;

[0020] Step three, when the plane position information comparison finds that two containers are loaded on the same vehicle, the weight information of the two containers is compared again, if the weight information comparison does not exceed the set value, the container handling machinery does not alarm, and the normal loading has no effect, if the weight information comparison exceeds the set value, an alarm is prompted, and the container cannot continue to fall or the spreader cannot be unlocked and separated after falling;

[0021] Step four, after the alarm prompt, the reach stacker must lift the container away from the vehicle plane position, so that the container can fall and the spreader can be unlocked and separated for subsequent operation.

[0022] The above description is further detailed in connection with specific preferred embodiments of the present application, and it is not intended to limit the specific implementation of the present application to these descriptions. For those skilled in the art of the present application, some equivalent substitutions or obvious variations can be made without departing from the concept of the present application, and the same performance or use is obtained, which should be considered as falling within the protection scope determined by the claims submitted by the present application.

Claims

1. A method for preventing the incorrect loading of empty or overloaded containers, characterized in that: Step 1: When loading and unloading containers from a train using a front-end crane, the front-end crane navigation system marks the position of the train, especially the delivery location of each batch of vehicles and the loading location of the containers, and reads the weight of the loaded containers through the container loading and unloading machinery; Step 2: When the reach stacker loads containers onto the train, it automatically weighs the containers, records their weight and location information, and compares the location and weight information with that of the containers already loaded in the same batch. Step 3: When the planar position information comparison finds that two containers are loaded on the same vehicle, the weight information of the two containers is compared. If the weight information comparison does not exceed the set value, the container loading and unloading machinery will not alarm and the normal loading will not be affected. If the weight information comparison exceeds the set value, an alarm will be triggered and the spreader will not be able to unlock and detach after the container is lowered. Step four: After the alarm is triggered, the front-end crane must lift the container away from the vehicle's horizontal position before the container can be lowered and the spreader can be unlocked and detached for subsequent operations.