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公开(公告)号：US3827507A
公开(公告)日：1974-08-06
申请号：US28978772
申请日：1972-09-18
Applicant: TECHNOLOGY INC CONST
Inventor： LANCE R
CPC classification number: B25D9/12 , B25D9/145 , E02F3/966 , Y10S173/04
Abstract: A hydraulic hammer for driving a demolition tool is disclosed. The hammer carries a piston which reciprocates in a cylinder. High pressure fluid drives the hammer to a retracted position to compress an air spring. The piston is momentarily held in the retracted position while an annular valve sleeve disposed about the piston is automatically moved downwardly by differential fluid pressure to open an annular passageway around the piston to permit the fluid to freely bypass the piston. The piston is then released so that the stored energy rapidly accelerates the hammer through an impact stroke without significant impedance from fluid and without displacing fluid from the cylinder. Since high pressure fluid is required only on the retraction stroke, the volume of fluid necessary to operate the hammer is essentially reduced by 50 percent, thus permitting either the force or frequency to be doubled for a given high pressure fluid source. A safety shuttle valve is also included which is cooperable with the tool member to bypass pressure fluid to reservoir until a predetermined load is imposed on the tool.
Abstract translation: 公开了一种用于驱动拆除工具的液压锤。 锤子带有在气缸中往复运动的活塞。 高压流体将锤子驱动到缩回位置以压缩空气弹簧。 活塞瞬间保持在缩回位置，而围绕活塞设置的环形阀套通过差动流体压力自动向下移动，以打开围绕活塞的环形通道，以允许流体自由地绕过活塞。 然后释放活塞，使得存储的能量通过冲击行程快速加速锤，而没有来自流体的显着阻抗，并且不使液体从气缸移位。 由于仅在回缩行程中需要高压流体，所以操作锤子所需的流体体积基本上减少了50％，从而允许给定的高压流体源的力或频率加倍。 还包括安全梭阀，其与工具构件配合以将压力流体旁路到储存器，直到预定的负载施加到工具上。
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公开(公告)号：US3749506A
公开(公告)日：1973-07-31
申请号：US3749506D
申请日：1970-07-23
Applicant: TECHNOLOGY INC CONST
Inventor： LANCE R
Abstract: A construction implement includes a vehicle having a boom, a compactor, and a compactor suspension system for supporting the compactor on the boom and for isolating the vheicle from vibrations caused by operation of the compactor. The compactor suspension system includes a frame mounted on the boom and at least one air bag mounted between the frame and the compactor. The alignment between the compactor and the boom is maintained by guide bars that extend from the frame into engagement with cooperating guide members on the compactor.
Abstract translation: 一种施工工具包括具有起重臂，压实机和压实机悬挂系统的车辆，该系统用于将起重机上的压实机支撑起来并且隔离该压块与由压实机的操作引起的振动。 压实机悬挂系统包括安装在起重臂上的框架和安装在框架和压实机之间的至少一个气囊。 压实机和悬臂之间的对准由从框架延伸成与压实机上的协作引导构件接合的导杆保持。
