Shield main drive sealing element performance testing device and method

The invention relates to a shield main drive sealing element performance testing device and method, and the device comprises a sealing outer cylinder assembly, a first sealing outer cover assembly is disposed on one side of the sealing outer cylinder assembly along the negative direction of an X axis, and a second sealing outer cover assembly is disposed on one side of the sealing outer cylinder assembly along the positive direction of the X axis. The first sealing outer cover assembly can move in the X-axis direction and achieve opening and closing operation with the sealing outer cylinder assembly, and the second sealing outer cover assembly can move in the X-axis direction and achieve opening and closing operation with the sealing outer cylinder assembly. The invention mainly aims to establish a method for evaluating the service life of the shield main drive seal in the actual working condition, and solves the problem of heavy economic losses such as bearing damage, bin opening and project delay caused by