High-speed heavy-load cross-shaped universal coupling

The invention discloses a high-speed heavy-load cross-shaped universal coupling which comprises a first connecting flange, a first cross-shaped bag, a second connecting flange, a second cross-shaped bag, a spline sleeve and a spline shaft assembly, the spline sleeve is connected with the spline shaft assembly, and the other end of the spline sleeve is connected with the upper end and the lower end of the first cross-shaped bag. The left and right ends of the first cross bag are connected with the first connecting flange; the other end of the spline shaft assembly is connected with the upper end and the lower end of a second cross-shaped bag, and the left end and the right end of the second cross-shaped bag are connected with second connecting flanges. By the adoption of the structure, the cross-shaped universal coupling has the good effects in the two aspects of heavy load and high speed. 本发明公开了一种高速重载十字万向联轴器，包括：第一连接法兰、第一十字包、第二连接法兰、第二十字包、花键套、花键轴组成，其中，花键套和花键轴组成连接，所述花键套的另一端与第一十字包的上下两端连接，第一十字包的左右两端与第一连接法兰连接；花键轴组成