Sliding line partition protection device for overhead crane maintenance section
A protection device, crane technology, applied in safety devices, heavy-duty pulleys, transportation and packaging, etc., can solve problems such as electric shock hazards for construction personnel, and achieve the effect of simple structure
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[0010] Such as figure 1 , 2 As shown, the two ends of the crane guide rail 5 in the crane maintenance section are respectively fixed to the left and right baffles 4 and 6, and the left baffle 4 or the right baffle 6 is hinged with the brake plate 3, and one end of the brake plate 3 is connected to the cylinder 2 The piston rod is hinged, the cylinder 2 is hinged to the side wall of the beam 1, and the crown rail 5 is fixed on the beam 1.
[0011] The cylinder 2 communicates with an air source (not shown in the figure) through a solenoid valve, and the coil of the solenoid valve is connected in series with the normally closed point of the contactor of the crane maintenance section. The contactor in the maintenance section of the crane has power, the normally closed point of the contactor is disconnected, the solenoid valve is powered off, and the cylinder does not operate; the contactor in the maintenance section of the crane has no power, the normally closed point of the cont...
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