reducer for preventing wear of bearing due to thrust of helix gear

摘要

The present invention relates to a reducer for preventing the abrasion of a bearing due to the thrust of a helix gear. More specifically, the present invention relates to a reducer for preventing the abrasion of a bearing due to the thrust of a helix gear, capable of preventing the lifespan of the bearing from being reduced as thrust, which is generated when the helix gear twisted at a predetermined angle is used, is concentrated on the bearing placed at a specific position. The reducer includes: a first driving gear coupled to a driving shaft of a motor and having a helix thread twisted at a predetermined angle; a first driven gear receiving power from the first driving gear, having a direction opposite to a twisting direction of the first driving gear, and coupled to a rotary shaft; a second driving gear arranged on the same rotary shaft as that of the first driven gear to cancel thrust generated toward one side in a twisting direction of the first driven gear, thereby preventing abrasion of the bearing due to thrust concentrated on a bearing, which is placed at one side of the rotary shaft, of multiple bearings, and having a direction opposite to the twisting direction of the first driving gear; and a second driven gear receiving power from the second driving gear, having a direction opposite to the twisting direction of the first driven gear, and coupled to an output shaft.