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1. 发明授权

US5669281A Method and machine for altering the striking stroke of a percussive machine moved by a pressurized incompressible fluid 失效
标题翻译：用于改变由加压不可压缩流体移动的冲击机的冲击行程的方法和机器
公开(公告)号：US5669281A
公开(公告)日：1997-09-23
申请号：US565577
申请日：1995-11-30
申请人： Jean S. Comarmond
发明人： Jean S. Comarmond
IPC分类号： B25C1/04 , B25D9/26 , F01L1/20 , F01L31/00
CPC分类号： B25D9/26
摘要： Method and apparatus for controlling a percussive machine by determining, during the phase of rebound of a piston following impact, the existence of an instantaneous flow rate of fluid flowing from a top chamber toward the high-pressure fluid feed circuit. The instantaneous flow rate is determined on the basis of the differential pressure between the top chamber and the high pressure fluid feed circuit. If a flow rate is detected, a control device is fed with pressurized fluid so as to shift a selector piston in a direction for lengthening the stroke of the striking piston.
摘要翻译：通过在冲击后活塞的回弹阶段确定存在从顶部腔向高压流体供给回路流动的瞬时流速的方法和装置来控制冲击机。基于顶部室和高压流体供给回路之间的压力差来确定瞬时流量。如果检测到流量，则控制装置被供给加压流体，以便使选择活塞沿一个方向移动，以延长打击活塞的行程。

2. 发明授权

US4800797A Hydraulic percussion device and method of controlling same 失效
标题翻译：液压冲击装置及其控制方法
公开(公告)号：US4800797A
公开(公告)日：1989-01-31
申请号：US83778
申请日：1987-08-07
申请人： Jean S. Comarmond
发明人： Jean S. Comarmond
IPC分类号： B25D9/14 , B25D9/26 , F15B11/15 , F01L25/02 , F01B7/18
CPC分类号： B25D9/26 , B25D9/145
摘要： A hydraulic percussion device comprises a housing defining a longitudinal cylinder, a piston longitudinally reciprocal in the cylinder and subdividing same into a front compartment and a rear compartment, and a tool engageable longitudinally with the piston at the front compartment. The compartments are alternately and oppositely hydraulically pressurized to move the piston forward to strike the tool while traveling at an end speed and to move the piston backward away from the tool, the rate of alternation being a frequency parameter and the speed being a force parameter. A controller varies at least one of the parameters by detecting how much the piston rebounds from the tool after striking same and operating the control means in accordance with how much rebound is detected. How much the piston rebounds can be detected by sensing the pressure in one of the compartments immediately after the piston strikes the tool. As rebound increases the pressure in the rear compartment increases relative to a set point or pressure in the front compartment decreases relative to a set point, and vice versa. Rebound can also be detected by sensing the pressure in one of the compartments and at one of the sides of the source and operating the control means in accordance with the differential between these sensed pressures.
摘要翻译：液压冲击装置包括限定纵向气缸的壳体，在气缸中纵向往复运动的活塞，并将其细分为前隔室和后隔室，以及可在前隔室处与活塞纵向啮合的工具。隔间相互液压加压以使活塞向前移动以在以最终速度行进的同时撞击工具，并将活塞向后移动离开工具，交替速率为频率参数，速度为力参数。控制器通过检测活塞在撞击之后从工具反弹多少量来改变至少一个参数，并根据检测到多少反弹来操作控制装置。通过在活塞撞击工具之后立即检测其中一个隔室中的压力可以检测活塞反弹量。随着反弹增加，后隔室中的压力相对于设定点增加，或者前隔室中的压力相对于设定点减小，反之亦然。还可以通过感测隔室中的一个和源的一侧的压力并根据这些检测到的压力之间的差异来操作控制装置来检测回弹。

3. 发明授权

US5388842A Device for holding the tool of a hydraulic rock breaker 失效
标题翻译：用于固定液压破岩锤工具的装置
公开(公告)号：US5388842A
公开(公告)日：1995-02-14
申请号：US77883
申请日：1993-06-15
申请人： Bernard Piras , Jean S. Comarmond
发明人： Bernard Piras , Jean S. Comarmond
IPC分类号： B25D17/08 , B25D17/00
CPC分类号： B25D17/084 , Y10T279/17085 , Y10T279/17923
摘要： This device is of the type in which the tool is mounted so as to slide, with interposition of upper and lower guide means, in a front guide. According to the invention, at least one of the guide means delimits a guide zone, the directrix of which comprises points of inflection forming separation angles between facets, which zone cooperates with a zone of complementary cross-section made, at least locally, on the tool in order to rotationally lock this tool.
摘要翻译：该装置是工具安装的类型，以便在前引导件中插入上引导装置和下引导装置。根据本发明，引导装置中的至少一个限定引导区域，其引导区域包括在小平面之间形成分离角度的拐点，该区域与互补横截面的区域配合，至少局部地在工具为了旋转锁定这个工具。

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