High pedestal jib crane operation control system that can descend with higher speed

The utility model relates to a high pedestal jib crane operation control system that can descend with higher speed, this system include that foot switch, major control system, converter, motor have reached and rise decline action mechanism, major control system connects the converter, and the converter is connected with the motor, and the motor is connected with rising to rise decline action mechanism, this control system establishes the foot switch that an input descends and instructs with higher speed, and foot switch passes through the reservation interface connection among signal cable and the major control system. This system effectively realizes the action that the hoist descends with higher speed, shortens decay time, improves work efficiency. The action of major control system order converter control motor is passed through to the suppression ratio that can make the goods during operation, descends the goods to this process and shortens 10% -15% through playing to rise decline action mechanism promptly, and major control system brakied when operating personnel loosened foot switch. The simple structure of this system, reasonable in design, it is easy and simple to handle, performance safe and reliable, when carrying out the bulk cargo operation with the high pedestal jib crane, application effect is showing very much.