Opening machine equipped with a device to prevent the center of the opening rod

摘要

The present invention relates to a device for preventing the opening of the hole opening center of the opening machine used in the excavation opening of the outlet of the blast furnace, more specifically, in the opening machine 100 used in the excavation opening of the blast furnace. Left and right support bars (1) installed on the upper surface of the air (100) and having gears (3, 4, 5, 6) mounted at both ends, respectively, and configured to rotate with the gears (3, 4, 5, 6) engaged with each other. , 2); One end of each of the left and right support bars 1 and 2 is fixed to one end thereof, and rod catches 9 and 10 are mounted to the other end thereof, respectively, so that they are formed to face each other to form a body of the opening 100. Enclosing the left and right support arms 7 and 8; A flow prevention bar 11 having one end fixed to the other end of the right support bar 2 and a pin groove 11-1 formed at one side thereof; A forward and backward cylinder 13 having a pin 12 inserted into the pin groove 11-1 at an end portion thereof; A swing jack 14 connected to the lower surface of the swing plate 14-1 attached to the upper surface of the right support arm 2 and the upper surface of the opening machine 100, respectively; It relates to a perforator with a center deviation prevention device of the opening rod, characterized in that the front and rear cylinders 13 and the swing jack 14 is made of a control switch 15 to operate in the opposite operation to each other.