The invention discloses a
shield tunneling machine articulation mechanism seal performance test device and test method. The test device comprises an outer
barrel fixed to an installation rack and an articulation seal ring coaxially arranged in the outer
barrel in a sleeved mode, the back end of the articulation seal ring is provided with a step portion for being sleeved with a to-be-tested elastic seal ring, and the middle of the articulation seal ring is provided with an annular groove for being sleeved with a to-be-tested
airbag seal ring; the interior of the outer
barrel are isolated into a seal cavity through a first baffle and a second baffle, and a force transmission frame for enabling the articulation seal ring to not axially move and hydraulic oil cylinders driving the articulation seal ring to wing are arranged in the outer barrel. By injecting a medium under pressure into the seal cavity and injecting lubricating
grease into a gap formed between the outer barrel and the articulation seal ring, real working conditions are simulated, the seal performances of the elastic seal ring and the
airbag seal ring are tested, results measured through tests are fed back to research and development of new equipment, a seal scheme achieving the optimal performance is adopted on the new equipment, the reliability of the equipment is enhanced, the equipment construction risk is reduced, and the maintenance cost is reduced.