Patent ID: 9631990
Date: 2017-04-25
CPC Classifications: G01L,G01M

Claim:
1. A device for testing mechanical seal performance, comprising: a main shaft ( 4 ), a working chamber ( 18 ) with two end covers respectively located at two ends thereof, and two groups of mechanical seals to be tested; wherein each group of mechanical seal comprises a stationary O-ring ( 71 ), a stationary ring ( 72 ), a rotating ring ( 73 ), a rotating O-ring ( 74 ), a support ring ( 75 ), a spring ( 76 ), a rotating ring seat ( 77 ); the rotating ring ( 73 ) and the rotating ring seat ( 77 ) are axially slidably connected and are circumferentially positioned with each other; the spring ( 76 ), the support ring ( 75 ) and the rotating O-ring ( 74 ) are located between the rotating ring seat ( 77 ) and the rotating ring ( 73 ) in sequence; the support ring ( 75 ) is axially slidably connected with the rotating ring seat ( 77 ); the stationary ring ( 72 ) is connected with center holes on the end covers via the stationary O-ring ( 71 ) provided on a periphery of the stationary ring ( 72 ) by a sealed manner; the stationary ring ( 72 ) is axially opposite to the rotating ring ( 73 ); wherein the shaft sleeve ( wherein a radially installed force sensor, adapted for testing a force between a sidewall of one of the U-shaped openings and one of the drive pins, is located between the sidewall of one of the U-shaped openings and one of the drive pins; a technological hole, for allowing a technological shaft to pass through, is provided on at least one of the end covers, the technological shaft passing through the technological hole is inserted into the short pin holes; the technological hole is sealed by a detachable technological hole plug (