专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明授权

US4945998A Hydraulic impact tool 失效
标题翻译：液压冲击工具
公开(公告)号：US4945998A
公开(公告)日：1990-08-07
申请号：US384763
申请日：1989-07-25
申请人： Takanobu Yamanaka
发明人： Takanobu Yamanaka
IPC分类号： E02D7/18 , B25D9/14 , B25D9/18 , E01C19/05 , E21C37/00 , F15B11/15
CPC分类号： B25D9/145
摘要： An impact tool including a cylinder, a piston slidably mounted in the cylinder and a valve for selectively opening and closing oil feed channels to move the piston up and down. A cylindrical member is slidably mounted on the piston around its large-diameter portion or thereunder. Its bottom end defines the top end of a lower chamber formed in the cylinder. The cylindrical member is adapted to descend together with the piston. But when the piston strikes the object and rebounds upwardly, the cylindrical member keeps descending away from the piston owing to the inertia force. Thus the volume of the lower chamber is kept from increasing excessively after the piston has struck the object. This will prevent cavitation in the lower chamber. When thereafter the lower chamber communicates with the oil feed port and pressure oil is fed thereinto, the cylindrical member will be pushed up toward the large-diameter portion under oil pressure in the lower chamber.

42. 发明授权

US4817737A Hydraulic striking device with impact frequency control 失效
标题翻译：液压打击装置，具有冲击频率控制
公开(公告)号：US4817737A
公开(公告)日：1989-04-04
申请号：US13442
申请日：1987-02-10
申请人： Takatoshi Hamada , Wen-Ho Huang
发明人： Takatoshi Hamada , Wen-Ho Huang
IPC分类号： B25D9/12 , B25D9/14 , B25D9/18 , B25D9/26
CPC分类号： B25D9/12 , B25D9/145
摘要： In the hydraulic breaker according to the present invention, oil pressure at a fixed value always flows in the circuit at a low pressure side whenever the piston is raised or lowered, to prevent the need for an accumulator in the circuit at the low pressure side. At the same time, a high pressure oil is required during the raising and lowering of the piston, bringing about less of a change in the surge pressure, attributing to the fact that there is no need for an accumulator in the circuit at the high pressure side. Moreover, the hydraulic breaker of the present invention is advantageous by providing an increased striking force because the high pressure oil is used, in addition to the reaction force of the compressed nitrogen gas, when the piston is lowered to strike the chisel.
摘要翻译：在根据本发明的液压破碎机中，每当活塞升高或降低时，固定值的油压总是在低压侧流动，以防止在低压侧的回路中的蓄能器的需要。同时，在升高和降低活塞期间需要高压油，导致喘振压力变化较小，归因于在高压下电路中不需要蓄能器侧。此外，当活塞降低以撞击凿子时，除了压缩氮气的反作用力之外，由于使用高压油也提供了增加的打击力，因此本发明的液压破碎机是有利的。

43. 发明授权

US4676323A Hydraulically operated percussive machine and an accumulator therefor 失效
标题翻译：液压操作冲击机和蓄液器
公开(公告)号：US4676323A
公开(公告)日：1987-06-30
申请号：US734869
申请日：1985-05-16
申请人： Stig R. Henriksson
发明人： Stig R. Henriksson
IPC分类号： B25D9/04 , B25D9/12 , B25D9/14 , B25D9/26 , F15B1/18 , F15B11/15 , B25D17/00
CPC分类号： B25D9/26 , B25D9/12 , F15B1/18 , B25D2209/002 , F15B2201/205 , F15B2201/3151 , F15B2201/411 , F15B2201/4155
摘要： A hydraulic percussive machine, for example a jack hammer or a rock drill, has an accumulator with a flexible diaphram (35). A lift valve (40, 41, 42) closes the outlet of the accumulator if the flow exceeds the normal flow substantially and it traps a volume of oil between the diaphragm and the valve when it closes.
摘要翻译：液压冲击机，例如千斤顶锤或凿岩机，具有一个具有柔性隔膜的蓄能器（35）。如果流量基本上超过正常流量，则提升阀（40,41,42）会关闭蓄能器的出口，并且当阀门关闭时，提升阀（40,41,42）在隔膜和阀门之间捕获一定量的油。

44. 发明授权

US4658913A Hydropneumatic percussive tool 失效
标题翻译：液压气动冲击工具
公开(公告)号：US4658913A
公开(公告)日：1987-04-21
申请号：US683799
申请日：1984-12-19
申请人： Ivan A. Yantsen , Kenes K. Bekishev , Orest G. Savchak , Alexandr B. Klok , Tolgat M. Zhanabaev , Mechislav-Valentinas K. Pakshtas , Boris N. Glotov , Garold K. Fink , Alexel F. Timkin , Nikolai I. Zorin , Leonid M. Bobylev
发明人： Ivan A. Yantsen , Kenes K. Bekishev , Orest G. Savchak , Alexandr B. Klok , Tolgat M. Zhanabaev , Mechislav-Valentinas K. Pakshtas , Boris N. Glotov , Garold K. Fink , Alexel F. Timkin , Nikolai I. Zorin , Leonid M. Bobylev
IPC分类号： B25D9/12 , B25D9/14 , B25D9/00
CPC分类号： B25D9/145 , B25D9/12
摘要： A vibration or reciprocating hydraulically driven impact tool for breaking up paving, compacting soil, or similar construction purposes. The tool employs a piston situated in a housing and configured to form (in cooperation with the housing) three chambers. One of the chambers is filled with a compressed gas which acts as a shock absorber/spring, with the other two chambers serving to drive adjacent flanges of the piston in opposite directions to provide reciprocating action. The device is constructed so that when no mechanical force is applied to the handle, the piston is at rest in its forward position (being urged there by the compressed gas), with the hydraulic forces acting upon the piston shoulders being balanced. When the handle is pushed forward, the hydralic system is altered so that unbalanced forces act on the piston flanges, causing the piston to start moving. Thereafter, a hydraulic valve system provides the desired reciprocating motion of the piston.
摘要翻译：用于分解铺路，压实土壤或类似建筑目的的振动或往复式液压驱动冲击工具。该工具采用位于壳体中并配置成与三个室形成（与壳体协作）的活塞。其中一个腔室填充有作为减震器/弹簧的压缩气体，其他两个腔室用于相反方向驱动活塞的相邻凸缘以提供往复运动。该装置被构造成使得当没有机械力施加到手柄时，活塞处于其向前位置（被压缩气体推动在其上），而作用在活塞肩上的液压力被平衡。当手柄向前推时，改变了液压系统，使得不平衡力作用在活塞法兰上，使活塞开始移动。此后，液压阀系统提供活塞所需的往复运动。

45. 发明授权

US4646854A Hydraulic striking device 失效
标题翻译：液压打击装置
公开(公告)号：US4646854A
公开(公告)日：1987-03-03
申请号：US801966
申请日：1985-11-26
申请人： Friedrich-Karl Arndt , Karlheinz Fritz
发明人： Friedrich-Karl Arndt , Karlheinz Fritz
IPC分类号： B25D9/12 , B25D9/14 , B25D9/16 , E21B1/26 , B25D9/18
CPC分类号： B25D9/145
摘要： A hydraulic striking device (1) includes a percussion piston (3) which reciprocates in an operating cylinder (2) and strikes a bit (4). The reciprocation is governed by a control valve (10) which is connected to the operating cylinder by a control conduit (27). A holding valve (30) in the control conduit has three connections (27a, 27b, 31): one with the control valve, one with the operating cylinder, and one with the return conduit (17). The connections (27a, 31) which are connected with the operating cylinder and with the control conduit are axially aligned and form the outlets of a hollow cavity (53) in which a preferably spherical movable valve body (54) is disposed, the cross-sectional area of the valve body being smaller than that of the cavity. The connection (27b) with the control valve opens radially into the cavity. If the valve body rests against the valve seat (55) which faces the return conduit, the axis of the connection (27b) passes through that half of the valve body which faces this valve seat. When the striking device operates, energy that is reflected from the bit to the percussion piston can be utilized for the following stroke and thus the total performance of the striking device is increased.
摘要翻译：液压打击装置（1）包括在操作缸（2）中往复运动并撞击钻头（4）的冲击活塞（3）。往复运动由控制阀（10）控制，控制阀（10）通过控制管道（27）连接到操作缸。控制管道中的保持阀（30）具有三个连接（27a，27b，31）：一个具有控制阀，一个具有操作缸，一个具有回流管道（17）。与操作气缸和控制导管连接的连接件（27a，31）轴向对齐并形成中空腔（53）的出口，其中设置有优选球形的可移动阀体（54）阀体的截面积小于空腔的截面面积。与控制阀的连接（27b）径向地打开到空腔中。如果阀体靠在面向回流导管的阀座（55）上，则连接件（27b）的轴线穿过面对该阀座的阀体的一半。当打击装置工作时，从钻头反射到冲击活塞的能量可以用于随后的冲程，因此提高了打击装置的总体性能。

46. 发明授权

US4632190A Pneumatically-operated multi-needle chisel tool 失效
标题翻译：气动多针凿工具
公开(公告)号：US4632190A
公开(公告)日：1986-12-30
申请号：US600334
申请日：1984-04-13
申请人： Toshio Mikiya
发明人： Toshio Mikiya
IPC分类号： B25D9/00 , B08B5/00 , B25D9/14 , B25D9/26 , B25D17/02 , B25D17/06 , B25D17/08 , B25F3/00
CPC分类号： B25D17/06 , B25D17/02 , B25D17/08 , B25D9/14 , B25D9/26 , B25D2250/291 , Y10T29/4578
摘要： A pneumatically-actuated multi-needle type chisel tool is provided having a hollow cylinder body, a piston ram fitted for axially reciprocal movement in a rearward portion of the cylinder body, an anvil fitted for axially reciprocal movement in an intermediate portion of the cylinder body, a needle holder fitted for axially reciprocal movement in a forward portion of the cylinder body and a number of needle chisels journaled for axially reciprocal movement in the needle holder. A first air passage is provided with an opening into the rearward portion of the cylinder body to introduce compressed air thereinto for moving the piston ram to and fro. A second air passage is provided with an opening into the forward portion of the cylinder body to introduce compressed air thereinto for moving the needle holder rearwardly. A cylinder cap is axially adjustably mounted to the forward portion of the cylinder body with the rear end face of the cap facing opposite to the outer peripheral forwardly facing surface of the needle holder such that the air pressure in the space of the cylinder body interior enclosed by the anvil and the needle holder is pressurized upon the anvil being rapidly moved forward by the impact from the piston ram, causing the pressurized air force to move the needle holder forwardly. Similarly, the air introduced into the forward portion of the cylinder body in front of the outer peripheral forwardly facing surface of the needle holder is compressed during the forward movement of the needle holder.
摘要翻译：提供一种气动多针式凿工具，其具有中空筒体，活塞柱塞，其安装成用于在缸体的后部中轴向往复运动;砧座，其安装成在缸体的中间部分中轴向往复运动一个针筒保持器，用于在筒体的前部中轴向往复移动，并且多个针凿孔用于在针保持器中轴向往复移动。第一空气通道设置有通向缸体的后部的开口，以将压缩空气引入其中以使活塞柱塞来回移动。第二空气通道设置有朝向缸体前部的开口，以将压缩空气引入其中以将针保持器向后移动。气缸盖可轴向可调节地安装到气缸本体的前部，其中帽的后端面与针座的外周向前面对面相对，使得缸体内部空间中的空气压力被封闭通过砧座，针保持器在砧座被来自活塞柱塞的冲击迅速向前移动时被加压，从而使加压空气力使针保持器向前移动。类似地，在针保持器的向前运动期间，引导到针保持器的外周面向前表面前方的引导到筒体前部的空气被压缩。

47. 发明授权

US4380901A Hydraulic percussion machine 失效
标题翻译：液压打击机
公开(公告)号：US4380901A
公开(公告)日：1983-04-26
申请号：US163794
申请日：1980-06-27
申请人： Pertti V. Rautimo , Raimo Pelto-Huikko , Esko A. O. Ahlman
发明人： Pertti V. Rautimo , Raimo Pelto-Huikko , Esko A. O. Ahlman
IPC分类号： B25D9/06 , B25D9/00 , B25D9/12 , B25D9/14 , B25D9/26 , F01B25/04 , F01L25/04
CPC分类号： B25D9/12 , B25D9/145 , B25D9/26
摘要： A hydraulic percussion machine, comprising a body carrying hydraulic passages and valves, and having a gas-filled, hydraulic pressure accumulator for storing the stroke energy which accelerates a piston to strike against a tool. The percussion machine has a separate hydraulic stroke standardizing circuit by action of which the piston stroke is independent of the liquid pressure in the high pressure line supplying the machine and of the volumetric flow.
摘要翻译：一种液压打击机，包括承载液压通道和阀门的主体，并具有充气的液压蓄能器，用于存储加速活塞撞击工具的行程能量。冲击机具有单独的液压冲程标准化回路，其作用是活塞行程独立于供应机器的高压管线和体积流量中的液体压力。

48. 发明授权

US4370916A Percussive device 失效
标题翻译：打击乐器
公开(公告)号：US4370916A
公开(公告)日：1983-02-01
申请号：US81915
申请日：1979-10-04
申请人： Leonid A. Mitin , Vladislav V. Mitrofanov , Vladimir Y. Fadeev , Petr Y. Fadeev , Vladlen V. Korobkov , Rim A. Kulagin , Anatoly A. Vorozheikin , Nikolai P. Ermilov , Jury V. Smirnov , Ivan A. Besedin
发明人： Leonid A. Mitin , Vladislav V. Mitrofanov , Vladimir Y. Fadeev , Petr Y. Fadeev , Vladlen V. Korobkov , Rim A. Kulagin , Anatoly A. Vorozheikin , Nikolai P. Ermilov , Jury V. Smirnov , Ivan A. Besedin
IPC分类号： B25D9/14 , B25D17/06 , F01B11/04 , F03C1/04 , F01L19/02 , F04B1/00
CPC分类号： B25D17/06 , B25D9/145 , F01B11/04
摘要： A percussive device for creating impact impulses, which device comprises a housing accommodating a striker. The striker has a tail portion located in a power cylinder which is joined to the housing and is filled with a fluid medium under pressure, said fluid medium operating the striker. Provision is made of an arresting mechanism which is kinematically connected to a drive designed to engage the striker for effecting its backward stroke in the process of which the fluid medium under pressure is compressed, storing potential energy. According to the invention, the striker backward stroke drive is constructed in the form of several hydraulic cylinders equidistantly spaced round the periphery of the housing. The rod of each of the hydraulic cylinders is connected to the striker arresting mechanism. One of the spaces in said hydraulic cylinders is constantly connected with the interior space of the power cylinder for the purpose of moving the arresting mechanism under the pressure of the fluid medium, whereas the other cylinder space is periodically put in communication with the pressure source, in order to effect the backward stroke of the arresting mechanism together with the striker, and with a pressure medium exhaust line.
摘要翻译：一种用于产生冲击冲击的冲击装置，该装置包括容纳撞针的壳体。撞击器具有位于动力缸中的尾部，动力缸连接到壳体并且在压力下填充有流体介质，所述流体介质操作撞针。规定了一种止动机构，其运动学连接到设计成接合撞击器的驱动器，以在压力下的流体介质被压缩的过程中实现其向后冲程，存储潜在的能量。根据本发明，冲击器向后冲程驱动器构造为在壳体的周边等距间隔开的几个液压缸的形式。每个液压缸的杆连接到撞击器止动机构。所述液压缸中的一个空间与动力缸的内部空间恒定连接，以便在流体介质的压力下移动止动机构，而另一个气缸空间周期性地与压力源连通，以便与撞击器一起实现止动机构的向后冲程，并且与压力介质排气管线一起实现。

49. 发明授权

US4207801A Hydraulic oscillatory devices 失效
标题翻译：液压振荡装置
公开(公告)号：US4207801A
公开(公告)日：1980-06-17
申请号：US849719
申请日：1977-11-08
申请人： Lionel A. Reynolds
发明人： Lionel A. Reynolds
IPC分类号： B25D9/12 , B25D9/14 , B25D9/26 , F01L21/02 , F01L25/06 , F01L27/04 , F03C1/03 , F01B7/18
CPC分类号： F01L21/02 , B25D9/145 , B25D9/26 , F01L25/06 , F01L27/04 , F03C1/035
摘要： A hydraulically-operated road breaker comprises a casing with a tool mounting and housing an oscillatory piston/striker and cylinder arrangement. A sequence valve mounted in the casing controls pressurization and exhausting of the piston to produce power and return strokes of the piston. Pilot port means positioned in the cylinder of the device are uncovered, at the end of each return stroke of the piston, to allow a valve-actuating flow of hydraulic fluid through the port means to change over the sequence valve and thereby cause stroke reversal of the piston. Manually-operable stroke selection means provide for adjustment of the position of the piston in the cylinder at which the valve-actuating flow occurs, whereby to vary the piston stroke.
摘要翻译：液压操作的断路器包括具有工具安装并容纳振荡活塞/冲击器和气缸装置的壳体。安装在壳体中的顺序阀控制活塞的加压和排出以产生活塞的动力和返回冲程。在活塞的每个返回行程结束时，位于装置的气缸中的先导端口装置未被覆盖，以允许通过端口装置的液压流体的阀致动流动来改变顺序阀，从而导致行程反转活塞。可手动操作的行程选择装置提供调节活塞在气缸中的位置，在该气缸中发生阀致动流，从而改变活塞行程。

50. 再颁专利

USRE30109E Hydroacoustic apparatus and valving mechanisms for use therein 失效
标题翻译：水声装置及其中使用的阀门机构
公开(公告)号：USRE30109E
公开(公告)日：1979-10-09
申请号：US822112
申请日：1977-08-05
申请人： John V. Bouyoucos , Roger L. Selsam , Dennis R. Courtright
发明人： John V. Bouyoucos , Roger L. Selsam , Dennis R. Courtright
IPC分类号： B25D9/12 , B25D9/14 , F01L17/00 , F01L25/04
CPC分类号： F01L17/00 , B25D9/12 , B25D9/145 , F01L25/04
摘要： Impact tools are described which are capable of developing percussive forces for rock drilling and other repetitive high force applications. A hydroacoustic oscillator contained in such tools includes a hammer and a valve mechanism which is actuated by the hammer for controlling the flow of pressurized fluid so as to establish pressure variations which sustain the oscillation of the hammer. A number of alternative valve mechanisms are disclosed, each including a valve element, the motion of which is controlled by controlling the flow of fluid with respect to the valve element as the hammer and valve element move relative to each other. Such flow control is afforded by chambers defined by the valve element; hydraulic fluid flow with respect to which is controlled so as to determine the deceleration of the valve element and the motion of the element in its actuation by the hammer.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式