HYDRAULIC MAIN LINE STRUCTURE OF SWING MOTOR VALVE CASING FOR CONSTRUTION EQUIPMENT

摘要

PURPOSE: A main flow path structure of a valve casing of a swing motor for construction equipment is provided to efficiently transfer pressure to a main flow path by forming the main flow path in a spherical shape. CONSTITUTION: A main flow path structure of a valve casing of a swing motor for construction equipment is composed as follows. Main flow paths(40) are arranged by integrating the center shaft(120) of an auxiliary flow path(60) with the center shaft of a bearing mounting groove(100). The main flow paths are molded in a spherical shape without an additional machining work to secure the strength of a valve casing.