| 摘要 |
PURPOSE: A polishing head is provided to smoothen the surface of granite or other stones by rotating and flowing many polishing wheels at the same time. CONSTITUTION: A granite polishing head is composed of a housing(110) with a flowing unit having many holder holes and many polishing wheels(100), a cylindrical cam(130) rotationally formed on the center of the housing with a shaft hole, a cam groove(132) and a cam gear(131), a dual internal gear(140) integrally forming an upper and a lower pitch bore to differently change the rotating speed of the cylindrical cam and the housing, and a cover(160) only moving horizontally along the movement of a polishing machine with an inner groove for fixing a needle bearing. A flowing device flows a holder(120) with rotating speed difference between the housing and the cylindrical cam. A crank(122) for the flow of the holder, has a bent portion to combine many track rollers(123) with the cylindrical cam. The cylindrical cam contains an oil passage for distributing oil equally and the cover contains an oil circuit(163) and a flux adjusting screw(165) controlling the oil circuit to adjust internal oil pressure. Then, the dual internal gear, a power transmission gear(151) and the cam gear are prevented from abrading due to oil circulation.
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