Mechanical sealing performance test device capable of measuring axial force and temperature between sealing end surfaces

The utility model provides a mechanical sealing performance test device capable of measuring axial force and temperature between sealing end surfaces. An electric main shaft of the mechanical sealing performance test device is connected with a single cantilever operation main shaft, floating support for the single cantilever working main shaft is achieved through the pressing action of a specific pressure of a dynamic end surface and a static ring end surface; the edge of a force measurement cylinder is in a flange structure, an axial force strain gage is disposed on the force measurement cylinder; a shaft sleeve sleeves a single cantilever working main shaft and goes through end covers at the left end and a right end of the sealing chamber, the shaft sleeve slides along the shaft direction of the single cantilever working main shaft, the circumference of the shaft sleeve is in positioned connection through an embedding groove block; two segments of threads with the same thread pitch and opposite spiral line directions are disposed on the shaft sleeve, the two segments of threads are screwed with a left nut and a right nut; rear sides of two pushing rings are in contact with two dynamic ring seats; the dynamic ring seats and the shaft sleeve slide along the axial direction and are in positioned connection at the circumferential direction; a through hole communicated with the sealing end surface is formed in a static ring, and an infrared probe is disposed in the through hole. The mechanical sealing performance test device is capable of achieving test of performance parameters, such as axial forces and temperatures of mechanical sealing used in large diameter and high rotation speed devices.