| 摘要 |
<p>An endless belt type bench testing apparatus has a flexible metallic endless belt (2) wound over a pair of rotary drums (20, 21) for rotation therewith. The apparatus has a hydraulic belt lubricating and support structure, in which a liquidus lubricating medium layer, such as a water layer, between the belt (2) and a supporting structural member (1) at an intermediate portion between the rotary drums (20, 21). A seal structure (6) for preventing the liquidus lubricating medium from leaking from a drain circuit, is provided at least at the downstream end of the clearance with respect to a direction of the belt motion. The seal structure (6) includes a porous seal member (9) associated with a resilient member (11) to be resiliently biased toward an endless belt (2) for establishing liquid-tight seal. The porous seal member (9) is designed for absorbing part of drained liquidus lubricating medium. The porous seal member (9) is also associated with a liquid removing means (10) for removing the liquidus lubricating medium therefrom for maintaining sufficient liquid absorbing capacity of the seal member (9).</p> |
