Anti-tipping control method for high-altitude hoisting

Abstract

The invention discloses an anti-tipping control method for high-altitude hoisting. The method comprises the following steps that (1) during high-altitude hoisting operation, a sensing system reads thecurrent wind speed and wind direction; (2) a vehicle-mounted controller judges whether the current wind speed exceeds a preset maximum allowable operation wind speed of a crane or not according to the current wind speed; (3) when the current wind speed is not greater than the maximum allowable operation wind speed, the vehicle-mounted controller performs judgment and calculation according to an operation instruction of a driver in combination with the parameters of a hoisted object and the collected wind speed and wind direction; and (4) when the current wind speed exceeds the maximum allowable operation wind speed, an operation risk is prompted to the crane driver, and the crane is only allowed to perform the operation of lowering the safety risk after the driver feeds back an operationcontinuing signal. According to the method, the crane driver can be warned of the operation risk and is allowed to move in a safer direction, so that the tipping risk is lowered, the tipping risk during high-altitude hoisting can be actively controlled, a detection element and a mechanism do not need to be additionally arranged, the cost is, and popularization is easy.

Description

Technical field[0001]The invention relates to a control method, in particular to an anti-tilting control method for high-altitude hoisting.Background technique[0002]Hoisting machinery such as truck cranes, all-terrain cranes, tire cranes, crawler cranes, and tower cranes. Due to the high wind speed during high-altitude hoisting operations, cranes and cranes hoisting objects are not completely controlled by the operation of the crane driver and are easily caused by wind loads. The hoisted object swings, which may even cause the hoisted object to fall and the crane to collapse.[0003]In order to prevent the safety risks that may be caused by the wind when the crane is hoisting at high altitude, the prior art installs an anemometer on the crane to measure the high-altitude wind speed of the lifting operation. When the wind speed is within the allowable range, the crane operates normally, and when the wind speed exceeds the allowable range, it will not Allow crane operation, give warning...

AI Technical Summary

Problems solved by technology

[0004] However, there are two deficiencies in the existing technical solutions: one, only taking the excess of the rated wind speed as the operating boundary, during high-altitude hoisting operations, such as during the high-altitude docking process of the wind turbine blades installed by the crane on the top of the mountain, the instantaneous change of wind force may exceed the rated wind speed boundary It is still very dangerous to suspend the wind blade at a height of 100 meters after stopping the operation; 2. Regardless of whether the rated wind speed is exceeded or not, the deflection of a large hoisting object suspended in the air depends not only on the movement of the crane controlled by the crane driver, but also on the wind speed and wind direction. It will affect the movement of large objects suspended in the sky, even under the same wind speed, because the wind direction is inconsistent with the movement of the crane, there will be a large difference in the deflection of the hoisted objects

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