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公开(公告)号：US06186246B1
公开(公告)日：2001-02-13
申请号：US09051616
申请日：1998-09-04
申请人： Timo Muuttonen , Aimo Helin , Timo Kiikka , Jorma Mäki , Pekka Salminen
发明人： Timo Muuttonen , Aimo Helin , Timo Kiikka , Jorma Mäki , Pekka Salminen
IPC分类号： B25D1724
摘要： A method for adjusting percussion pressure and a drilling machine. In the method the percussion power of a drilling machine is adjusted by moving a shank in the longitudinal direction of the drilling machine forwards when a smaller percussion power is to be transferred from the percussion piston to the shank. The drilling machine comprises at least two groups of pistons moving in the axial direction of the drilling machine, the pistons being connected to act on the shank by means of a pressure medium acting behind the pistons towards the front end of the drilling machine. The drilling machine comprises at least two separate groups of pistons whose travel with respect to one another is different and where pressure medium channels separate from one another lead to the cylinder spaces of both piston groups.
摘要翻译： 调节冲击压力的方法和钻孔机。 在该方法中，当较小的冲击力从冲击活塞传递到柄时，通过在钻机的纵向方向上移动柄来调节钻孔机的冲击力。 钻机包括沿钻孔机轴向移动的至少两组活塞，活塞通过在活塞后面朝着钻孔机前端施加的压力介质连接起来作用在柄上。 该钻机包括至少两组独立的活塞组，它们相对于彼此的行进是不同的，并且压力介质通道彼此分离并且两个活塞组的气缸空间。
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2.发明授权Method and apparatus for controlling a rock drill on the basis of sensed pressure pulses 有权基于检测到的压力脉冲来控制凿岩机的方法和装置
公开(公告)号：US6112832A
公开(公告)日：2000-09-05
申请号：US268732
申请日：1999-03-17
CPC分类号： E21B44/06
摘要： During the drilling of rock by a rock drill bit, percussive impacts are applied to the drill bit by a reciprocating piston which impacts a shank that transmits the impacts to the drill bit. Secondary pistons are provided to push the shank forwardly in response to a pressure medium acting on rear surfaces of the secondary pistons. The secondary pistons push the shank to its optimum point of impact. During a drilling operation, as the piston applies percussive impacts, return pulses are reflected back to the secondary pistons. Pressure sensors detect the return pulses in the form of pressure pulses, which indicate whether the drill bit has encountered weaker or stronger materials. Based upon characteristics of the detected pressure pulses, the operation of the drilling machine, e.g., the feed and/or impact power thereof, is regulated, so that the shank is returned to its optimum point of contact.
摘要翻译： 在通过岩石钻头对岩石进行钻孔时，通过往复运动的活塞将撞击作用施加到钻头上，所述往复活塞撞击将冲击传递到钻头的柄部。 提供二级活塞以响应于作用在次级活塞的后表面上的压力介质向前推动柄。 次级活塞将柄推至最佳冲击点。 在钻孔操作期间，当活塞施加冲击冲击时，返回脉冲被反射回辅助活塞。 压力传感器以压力脉冲的形式检测返回脉冲，指示钻头是否遇到较弱或较强的材料。 基于检测到的压力脉冲的特性，调节钻机的操作，例如进给和/或冲击功率，使得柄部返回到其最佳接触点。
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公开(公告)号：US06273199B1
公开(公告)日：2001-08-14
申请号：US09381502
申请日：2000-05-19
申请人： Timo Kiikka , Timo Muuttonen , Pekka Salmlnen
发明人： Timo Kiikka , Timo Muuttonen , Pekka Salmlnen
IPC分类号： B25D900
CPC分类号： E21B6/00 , B25D9/12 , B25D17/245 , E21B44/06
摘要： An arrangement in a rock drill comprising a shank and a percussion piston and lifting sleeve for moving the shank towards percussion piston, and a method of controlling rock drilling. The arrangement comprises a lifting sleeve around the shank and a plurality of cylindrical lifting pistons around the shank. In the method, upon downward drilling, the magnitude of the feed force of the rock drill is decreased as the number of extension rods increases, and a force is set to act on some lifting pistons to move the shank towards the percussion point.
摘要翻译： 凿岩机中的布置，其包括柄和冲击活塞以及用于将柄移动到冲击活塞的提升套管，以及控制岩石钻孔的方法。 该装置包括围绕柄部的提升套筒和围绕柄部的多个圆柱形提升活塞。 在该方法中，在向下钻孔时，随着延伸杆的数量增加，凿岩机的进给力的大小减小，并且力被设定为作用于一些提升活塞以将柄朝向撞击点移动。
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公开(公告)号：US4934465A
公开(公告)日：1990-06-19
申请号：US40499
申请日：1987-04-20
申请人： Pekka Salmi , Timo Kiikka , Timo Muuttonen
发明人： Pekka Salmi , Timo Kiikka , Timo Muuttonen
CPC分类号： E21B6/00 , B25D17/245 , B25D9/12 , F16C27/08 , B25D2250/221
摘要： The invention relates to an arrangement for the axial bearing of the drilling machine. The drilling machine thereby comprises a body (6), a percussion device (1) fitted in the body, and a rotation bushing (3) functioning as a rotating means of a shank (2) positioned on an axial extension of the percussion device. Furthermore, an axial bearing is fitted within the body (6) for receiving the axial forces exerted on the body (6) through the shank (2). In order to provide resilience, the axial bearing is arranged to be displaceable in the axial direction under the influence of a pressure medium acting thereon. To resiliently receive a percussion impulse reflected from the rock during the drilling process, the pressure and volume flow of the pressure medium of the axial bearing is adjustable so that the position (Y) of the axial bearing is between the extreme positions (0,.DELTA.X) of the axial bearing under the normal operating conditions of the drilling machine.
摘要翻译： 本发明涉及一种用于钻机的轴向轴承的装置。 因此，钻机包括主体（6），安装在主体中的冲击装置（1）和用作位于冲击装置的轴向延伸部上的柄（2）的旋转装置的旋转衬套（3）。 此外，轴承轴承装配在主体（6）内，用于通过柄（2）接收施加在主体（6）上的轴向力。 为了提供弹性，轴向轴承布置成在受其作用的压力介质的影响下在轴向方向上可移动。 为了弹性地接收在钻井过程中从岩石反射的冲击脉冲，轴向轴承的压力介质的压力和体积流量是可调节的，使得轴向轴承的位置（Y）在极限位置（0，DELTA X）在钻机正常工作条件下的轴向轴承。
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公开(公告)号：US4671366A
公开(公告)日：1987-06-09
申请号：US736438
申请日：1985-05-21
申请人： Vesa Uitto , Pasi Julkunen , Pasi Latva-Pukkila , Timo Kiikka
发明人： Vesa Uitto , Pasi Julkunen , Pasi Latva-Pukkila , Timo Kiikka
摘要： A method for optimizing percussive drilling, especially rock drilling, in which method the operation of the drilling device is adjusted for a desired drilling result to be obtained. According to the invention, a stress wave created in a drill rod as a result of a stroke is measured and the drilling device is adjusted on the basis of the measured stress wave. The adjusting is carried out e.g. by means of the damping rate or the spectrum of the measured stress wave or the shape of the stress wave and/or the energy fed by the different portions thereof.
摘要翻译： 一种用于优化冲击钻井，特别是岩石钻探的方法，其中调整钻井装置的操作以获得期望的钻井结果。 根据本发明，测量作为行程的结果在钻杆中产生的应力波，并且基于测量的应力波来调节钻孔装置。 调整例如进行。 通过测量的应力波的阻尼率或光谱或应力波的形状和/或由其不同部分馈送的能量。
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