Main scissor cylinder small-cavity rotating flange

The invention relates to a main scissor cylinder small-cavity rotating flange, which is characterized by comprising an end cover, a small bearing, a casing, a pipe joint, a large bearing, a rotating body, an oil outlet flange, rotating seals and an oil inlet flange, wherein the end cover, the rotating body and the oil outlet flange are connected together through screws; the end cover is connected to the left end of the casing through the small bearing; the rotating body is connected to the right end of the casing through the large bearing and connected with the oil outlet flange; the oil outlet flange is connected with the main scissor cylinder through a hard pipe; the rotating seals are arranged on the left and the right of the rotating body inside the casing; the pipe joint is arranged at the upper end of the casing, and the oil inlet flange is arranged at the lower end of the casing; and the oil inlet flange and the casing are connected together through screws and fixed on a support. The main scissor cylinder small-cavity rotating flange can meet the oil supply requirement during rotation of swing type main scissors and provides oil for other similar devices in a rotating manner at the same time.