Revolving gear box has pressure-controlled device that is arranged in inside of hollow bore of hollow shaft and is opened due to centrifugal force of lubricant so that pressure is delivered when speed of gear box is exceeded

摘要

The gear box has transmission (1) having hollow shaft (3) passing through housing (2). A pressure-controlled device (5) is arranged in inside of hollow bore (4) of hollow shaft for delivering pressure to transmission outer side. The pressure-controlled device is positioned so that lubricant is applied in pressure-controlled device and pressure-controlled device is closed when transmission is in non-rotating state and gear box is rotated slowly. The pressure-controlled device is opened due to centrifugal force of lubricant so that pressure is delivered when speed of gear box is exceeded.