| 摘要 |
An automatic cleaning apparatus for a gun barrel is disclosed, which includes a wheel contacting an inner surface of the gun barrel and a brush or non-woven fabric rotating against the inner surface of the gun barrel which is applied with a cleaning solution or anti-corrosive oil, and moves forward by rotation of the wheel. The automatic cleaning apparatus includes a gear housing interposed between a front wheel and a rear wheel which are rotated in cooperation with a motor, and having a penetrated axial center part, a main shaft installed in the center part of the gear housing, and coupled to the motor and rotated by the motor, a sun gear disposed in a direction perpendicular to an axial direction of the gear housing, and coupled to the main shaft, a plurality of planetary gears positioned in a through-hole formed on the gear housing, restrained by a fastening bolt to mesh with the sun gear to rotate on its axis, and an external gear meshed with outer surfaces of the planetary gears, the brush or non-woven fabric being detachably engaged to the external gear.
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