公开(公告)号：US4418769A

公开(公告)日：1983-12-06

申请号：US243076

申请日：1981-03-12

Applicant: Robert R. Vincent ,  James T. Clemenson

Inventor： Robert R. Vincent ,  James T. Clemenson

IPC: B25D9/14 ,  B25D9/04

CPC classification number: B25D9/14

Abstract: A starting mechanism for a reciprocating piston pneumatic hammer provides a passageway coupling a pneumatic piston subchamber to an exit port to exhaust pressurized pneumatic fluid from the subchamber during a start-up period. A pneumatic valve is provided to open the passageway as the hammer is started so as to create a pressure differential in the coupled piston subchamber, and thus prevent the piston from centering. The valve closes the passageway after the piston reciprocation has begun.

Abstract translation: 往复式活塞气动锤的启动机构提供将气动活塞副室连接到出口的通道，以在启动期间从次级室排出加压的气动流体。 提供气动阀，以在起动锤时打开通道，以在联接的活塞副室中产生压力差，从而防止活塞定心。 在活塞往复运动开始后，阀关闭通道。

公开(公告)号：US4243110A

公开(公告)日：1981-01-06

申请号：US10438

申请日：1979-02-08

Applicant: James T. Clemenson ,  Robert R. Vincent

Inventor： James T. Clemenson ,  Robert R. Vincent

IPC: B25D17/08 ,  B25D17/12 ,  B25D17/26 ,  B25D15/00 ,  B25D17/22

CPC classification number: B25D17/12 ,  B25D17/084 ,  B25D17/265 ,  Y10S173/02

Abstract: A pneumatic percussion rock drill includes a muffler casing surrounding the drill cylinder part and sealingly engaged with the drill housing so that exhaust air from the percussion motor flows forward through ports in a forward housing member into a chamber containing the drill chuck, the chuck rotation gearing, and the drill stem shank. Exhaust air is used to cool and lubricate the chuck parts before exiting from the drill onto the feed mechanism located below the drill housing.

Abstract translation: 气动冲击凿岩机包括围绕钻筒部分并与钻孔壳体密封接合的消声器壳体，使得来自冲击马达的排出空气通过前壳体构件中的端口向前流动到包含钻夹头的腔室中，卡盘旋转齿轮 ，和钻柄柄。 排气用于冷却和润滑卡盘部件，然后从钻头退出到位于钻头壳体下方的进给机构上。