ES1223931U - SECURITY DEVICE FOR CRANE BRIDGES. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Safety device for bridge cranes, being applicable to crane bridges (1) in which a series of motors (2) involved in the operation thereof, characterized in that an accelerometer (3) is associated to each motor (2) , to which a communication module (4) is connected, transmits the readings of the accelerometers (3) to the device, which is equipped with a communications module (5), associated with a microcontroller (6) with an analysis firmware of the readings of the accelerometers (3) and generation of control signals for the motors (2), device that has a control interface (7), and acoustic signaling means (9) and / or luminous (10). (Machine-translation by Google Translate, not legally binding)

Description

SAFETY DEVICE FOR CRANE BRIDGES

D E S C R I P C I O N

OBJECT OF THE INVENTION

The present invention relates to a safety device for bridge cranes, designed to allow handling loads with crane bridges in a safe manner, from the moment the load is lifted, passing through the displacement of said load, and avoiding the rolling and therefore the inherent risks of said operation.

The device is also usable for port cranes used for handling containers, allowing the operation to be carried out in less time and avoiding the displacement and balance of the load.

BACKGROUND OF THE INVENTION

In the handling of loads by means of overhead cranes, these are sometimes equipped with speed regulation systems with electronic speed regulators or variators that generate acceleration and deceleration ramps, but do not prevent the load from rolling while moving, as well as when the overhead crane stops, forcing the operator to perform stabilization maneuvers to stop the swing.

Therefore, there are no known safety systems that control the lifting of the load when the lift is to be carried out, in conditions that are not safe and can generate a displacement of the load and therefore risks for people through entrapment, with fatal results depending on the mass to be displaced.

DESCRIPTION OF THE INVENTION

The safety device for bridge cranes that is recommended has been designed to achieve safe maneuverability conditions in any handling of loads that are carried out with a bridge crane or similar system.

More specifically, the device of the invention is embodied in an electronic system that controls the movements of the load and interacts with the drives of the bridge crane, so that it avoids balancing the load.

The device also allows to avoid lifting the load if it does not begin to rise perfectly vertically.

The electronic system manages by means of an algorithm the information received from accelerometers installed strategically in the complete system of the bridge crane. Depending on the information generated and its management, the speeds of the various motors of the overhead crane are regulated to achieve the object of the invention.

On the other hand, the electronic system can also be used to inform on the data that the user requests to control the way in which the overhead crane is used and to have traceability of everything that happens when lifting and / or handling loads.

The system does not have a physical connection with the crane bridge drives, it interacts with the overhead crane by radio frequency, being able to equip it with sound and light warning systems when maneuvering attempts exceed the established limits.

DESCRIPTION OF THE DRAWINGS

To complement the description that will be made next and in order to help a better understanding of the characteristics of the invention, according to a preferred example of practical realization thereof, an integral part of said description is accompanied by a map where With an illustrative and not limitative character, the following has been represented:

Figure 1 shows a block diagram of the essential elements involved in a safety device for bridge cranes made in accordance with the object of the present invention.

PREFERRED EMBODIMENT OF THE INVENTION

In view of the aforementioned figure, it can be seen how the device of the invention is applicable to a bridge crane (1), which will be equipped with the classic motors (2) for actuating it.

Well, the device of the invention is based on the fact that an accelerometer (3) is associated to said crane driving motors (2) (1), which transmit the readings through appropriate communication modules (4). of the accelerometers (3) to the device of the invention, which will be equipped with a communications module (5), associated with a microcontroller (6) that analyzes said readings so that through the corresponding firmware to be able to warn of any balancing and correct said maneuvers by means of communication with the control electronics of the overhead crane through said communication module.

The device may have a control interface (7), being powered by a battery (8).

Finally say that the device can incorporate acoustic signaling means (9) and / or light (10) through which to warn of possible risks arising from a possible balancing.

Claims (1)

1a.- Safety device for crane bridges, which being applicable to crane bridges (1) in which a series of motors (2) of actuation thereof participate, characterized in that each motor (2) is associated with an accelerometer (3) ), to which a communication module (4) is connected, transmits the readings of the accelerometers (3) to the device, which is equipped with a communications module (5), associated with a microcontroller (6) with an analysis firmware. of the readings of the accelerometers (3) and generation of control signals for the motors (2), device that has a control interface (7), and acoustic signaling means (9) and / or luminous (10) .