Shape Optimization and Leakage Analysis of the Oil Cavity of Hydrostatic Sliding Table in Down-pressing Board of the Ultra-large Tonnage Compression Shear Tester

Abstract

This paper proposes a method to reduce the oil leakage of the hydrostatic slide table. The method reduces the friction loss of the oil cavity through structural optimization, and derives the optimal ratio of the length and width of the oil cavity sealing oil edge in the oil cavity size. The clearance seal design is added around the down-pressing board, and the advantage of the extremely small thickness of the oil film is combined with an appropriate edge width and an oil-saving groove to ultimately reduce the leakage of oil. The theoretical calculations show that this method can better solve the oil in the down-pressing board problems with leaks.