公开(公告)号：US07152692B2

公开(公告)日：2006-12-26

申请号：US11046684

申请日：2005-02-01

Applicant: Arvo Hurskainen ,  Esko Juvonen

Inventor： Arvo Hurskainen ,  Esko Juvonen

IPC: B23B45/16

CPC classification number: B25D9/18 ,  B25D9/145 ,  B25D2222/57 ,  B25D2250/331 ,  B25D2250/345 ,  B25D2250/365 ,  E02F3/966

Abstract: A hydraulic hammer having a sealing bushing includes a percussion piston that delivers strokes to a tool. A lower part of the percussion piston is sealed with respect to a frame by the sealing bushing, which includes one or more lower seals. The sealing bushing does not contribute to the bearing of the percussion piston and it is arranged in place through the lower end of the hydraulic hammer.

Abstract translation: 具有密封衬套的液压锤包括将冲程输送到工具的冲击活塞。 冲击活塞的下部通过包括一个或多个下密封件的密封衬套相对于框架被密封。 密封衬套不影响冲击活塞的轴承，并通过液压锤的下端布置在适当的位置。

公开(公告)号：US5653295A

公开(公告)日：1997-08-05

申请号：US490774

申请日：1995-06-15

Applicant: Esko Juvonen ,  Jouni Salo ,  Kauko Juuri

Inventor： Esko Juvonen ,  Jouni Salo ,  Kauko Juuri

IPC: B25D9/14 ,  B25D9/26

CPC classification number: B25D9/145 ,  B25D9/26

Abstract: The invention relates to a hydraulic percussion hammer comprising a piston (1), a pressure accumulator (7) in the high pressure circuit, a main valve (8) alternately conducing a high and low pressure to at least one of the pressure surfaces (2,4) of the piston (1) for making the piston (1) move reciprocally, and a tool (3) which the piston (1) strikes, and, for the purpose of controlling the main valve (8), a control pressure valve (9) which opens when the pressure exceeds a set value. According to the invention, the control pressure valve (9) is placed in such a way that the spindle (27) of the control pressure valve (9) is connected from one end to the high pressure circuit of the hydraulic percussion hammer. Furthermore, for the purpose of adjusting the maximum and minimum operating pressure of the hydraulic percussion hammer the other end of the spindle (27) of the control pressure valve (9) comprises a control space (29) connected through the hydraulic ducts to at least two pressure control devices (30,31,32,33) connected hydraulically in parallel or in series.

Abstract translation: 本发明涉及一种液压冲击锤，包括活塞（1），高压回路中的蓄压器（7），主阀（8），其将高压和低压交替地导向至少一个压力表面（2 用于使活塞（1）往复移动的活塞（1）的活塞（4）和活塞（1）所撞击的工具（3），并且为了控制主阀（8），控制压力 当压力超过设定值时打开的阀（9）。 根据本发明，控制压力阀（9）以使得控制压力阀（9）的主轴（27）从液压冲击锤的一端连接到高压回路的方式设置。 此外，为了调整液压冲击锤的最大和最小操作压力，控制压力阀（9）的主轴（27）的另一端包括通过液压管道连接至少至少的控制空间（29） 并联或串联连接的两个压力控制装置（30,31,32,33）。

公开(公告)号：US08118112B2

公开(公告)日：2012-02-21

申请号：US12285433

申请日：2008-10-03

Applicant: Esko Juvonen

Inventor： Esko Juvonen

IPC: E21B7/24 ,  F16K21/16

CPC classification number: B25D9/145 ,  E02F3/966 ,  E02F9/221 ,  E02F9/2217 ,  F15B1/024 ,  F15B21/12 ,  F15B2211/40 ,  F15B2211/428 ,  F16K17/082 ,  Y10T137/8667 ,  Y10T137/86767 ,  Y10T137/86775

Abstract: A hydraulic rock breaking device, a protection valve and a method of operating a hydraulic rock breaking device. The rock breaking device comprises a percussion device to which pressure fluid is fed along an inlet channel. The inlet channel is provided with a protection valve arranged to monitor the volume flow of pressure fluid flowing through it. If the flow is larger than what has been preset, the protection valve closes, at least partly, the connection through it, protecting thus the percussion device against too high an input power. The protection valve comprises a throttle which generates a pressure difference the magnitude of which is dependent on the fed volume flow. Information on the pressure difference is utilized in controlling the protection valve.

Abstract translation: 液压破岩装置，保护阀和操作液压破岩装置的方法。 岩石破碎装置包括冲击装置，压力流体沿着入口通道进给。 入口通道设置有保护阀，其设置成监测流过其中的压力流体的体积流量。 如果流量大于预设值，则保护阀至少部分地关闭通过它的连接，从而保护冲击装置免受过高的输入功率。 保护阀包括节流阀，该节流阀产生其大小取决于进料体积流量的压力差。 关于压力差的信息用于控制保护阀。

公开(公告)号：US20090090525A1

公开(公告)日：2009-04-09

申请号：US12285433

申请日：2008-10-03

Applicant: Esko Juvonen

Inventor： Esko Juvonen

IPC: B25D9/00

CPC classification number: B25D9/145 ,  E02F3/966 ,  E02F9/221 ,  E02F9/2217 ,  F15B1/024 ,  F15B21/12 ,  F15B2211/40 ,  F15B2211/428 ,  F16K17/082 ,  Y10T137/8667 ,  Y10T137/86767 ,  Y10T137/86775

Abstract: A hydraulic rock breaking device, a protection valve and a method of operating a hydraulic rock breaking device. The rock breaking device comprises a percussion device to which pressure fluid is fed along an inlet channel. The inlet channel is provided with a protection valve arranged to monitor the volume flow of pressure fluid flowing through it. If the flow is larger than what has been preset, the protection valve closes, at least partly, the connection through it, protecting thus the percussion device against too high an input power. The protection valve comprises a throttle which generates a pressure difference the magnitude of which is dependent on the fed volume flow. Information on the pressure difference is utilized in controlling the protection valve.

Abstract translation: 液压破岩装置，保护阀和操作液压破岩装置的方法。 岩石破碎装置包括冲击装置，压力流体沿着入口通道进给。 入口通道设置有保护阀，其设置成监测流过其中的压力流体的体积流量。 如果流量大于预设值，则保护阀至少部分地关闭通过它的连接，从而保护冲击装置免受过高的输入功率。 保护阀包括节流阀，该节流阀产生其大小取决于进料体积流量的压力差。 关于压力差的信息用于控制保护阀。

公开(公告)号：US5890548A

公开(公告)日：1999-04-06

申请号：US671129

申请日：1996-06-24

Applicant: Esko Juvonen

Inventor： Esko Juvonen

IPC: B25D9/26

CPC classification number: B25D9/26

Abstract: Hydraulic percussion hammer, in which a motion of a percussion piston (1) is controlled by a main valve (3), the control motion of which is controlled by a separate control valve (9) in such a way that the main valve changes its state, when the pressure acting on the control valve (9) rises to a predetermined value. The percussion hammer comprises a controller (21) mounted in its return duct (13), by which controller an outflow of pressure fluid from the percussion hammer can be adjusted in such a way that the filling rate of a pressure accumulator (7) and thus the length of a return motion of the percussion piston (1) are proportional to the flow resistance provided by the controller (21).

Abstract translation: 液压冲击锤，其中冲击活塞（1）的运动由主阀（3）控制，其控制运动由单独的控制阀（9）控制，使得主阀改变其 当所述作用在所述控制阀（9）上的压力上升到预定值时。 冲击锤包括安装在其返回管道（13）中的控制器（21），通过该控制器可以调节来自冲击锤的压力流体的流出，使得压力蓄能器（7）的填充速率因此 冲击活塞（1）的返回运动的长度与由控制器（21）提供的流动阻力成比例。

公开(公告)号：US20050167131A1

公开(公告)日：2005-08-04

申请号：US11046684

申请日：2005-02-01

Applicant: Arvo Hurskainen ,  Esko Juvonen

Inventor： Arvo Hurskainen ,  Esko Juvonen

IPC: B25D9/04 ,  B25D9/00 ,  B25D9/02 ,  B25D9/06 ,  B25D9/14 ,  B25D9/18 ,  E02B3/16

CPC classification number: B25D9/18 ,  B25D9/145 ,  B25D2222/57 ,  B25D2250/331 ,  B25D2250/345 ,  B25D2250/365 ,  E02F3/966

Abstract: The invention relates to a hydraulic hammer comprising a percussion piston (12) for delivering strokes to a tool (8). The lower part of the percussion piston is sealed to the frame (9) by means of a sealing bushing (31) comprising one or more lower seals (15). The sealing bushing does not contribute to the bearing of the percussion piston and it is arranged in place through the lower end of the hydraulic hammer (1). Further, the invention relates to a tool bushing (28) into which the sealing bushing (31) is integrated.

Abstract translation: 本发明涉及一种液压锤，其包括用于将冲程输送到工具（8）的冲击活塞（12）。 冲击活塞的下部通过包括一个或多个下密封件（15）的密封衬套（31）密封到框架（9）。 密封衬套不影响冲击活塞的轴承，并通过液压锤（1）的下端布置在适当位置。 此外，本发明涉及一种工具衬套（28），密封衬套（31）被整合到其中。

公开(公告)号：US5979291A

公开(公告)日：1999-11-09

申请号：US893369

申请日：1997-07-15

Applicant: Esko Juvonen

Inventor： Esko Juvonen

IPC: B25D9/14 ,  B25D9/18 ,  F01L15/00 ,  F01B7/18 ,  F01L21/02

CPC classification number: B25D9/145 ,  B25D9/18 ,  B25D2209/002

Abstract: A hydraulically operated percussion hammer comprising a percussion piston that reciprocates by means of the pressure of the pressure fluid, a main valve that is controlled by the position of the percussion piston and that guides the pressure fluid to the percussion piston in order to provide a reciprocating motion, and a pressure control valve that is placed in an outlet duct for pressure fluid and that prevents the flow of the pressure fluid from the percussion apparatus before the pressure of the pressure fluid in the inlet duct exceeds the set value of the pressure control valve. The percussion apparatus comprises a separate by-pass duct which allows the pressure fluid to flow from the pressure chamber of the percussion piston past the pressure control valve to the outlet duct until the percussion piston has reached a certain point during its return motion.

Abstract translation: 一种液压操作的冲击锤，包括通过压力流体的压力往复运动的冲击活塞，主阀，其由冲击活塞的位置控制，并将压力流体引导到冲击活塞，以提供往复运动 运动和压力控制阀，其被放置在用于压力流体的出口管道中，并且在入口管道中的压力流体的压力超过压力控制阀的设定值之前防止来自冲击装置的压力流体的流动 。 冲击装置包括单独的旁通管道，其允许压力流体从冲击活塞的压力室流过压力控制阀到出口管道，直到冲击活塞在其返回运动期间达到某一点时。

公开(公告)号：US3965799A

公开(公告)日：1976-06-29

申请号：US505028

申请日：1974-09-11

Applicant: Esko Juvonen ,  Pentti Virtanen

Inventor： Esko Juvonen ,  Pentti Virtanen

IPC: B25D9/14 ,  E21B1/26 ,  F01B25/04 ,  F01B7/18 ,  F01L17/00 ,  F01L25/04

CPC classification number: B25D9/145

Abstract: Hydraulically driven percussion device, comprising a piston reciprocally movable within a body and striking against a tool, said piston defining with reference to the body two cylinder spaces, one of which continuously communicates with the high pressure duct and the other by the aid of a distribution means alternatingly connectable to the high pressure duct and the low pressure duct. At both ends of the piston there are breathing chambers opening into the free atmosphere. Within one of said two cylinder spaces a sleeve-like distribution means has been placed to encircle the piston and which distribution means, in order to move into a position such that movement of the piston directed towards the tool becomes possible, is controlled by means of grooves provided in the piston and in the body when the piston is in its end position farthest removed from the tool and only on condition that the pressure in the high pressure duct exceeds a pressure set with an adjustable valve incorporated in the body.

Abstract translation: 液压驱动的冲击装置包括可在主体内往复运动并撞击工具的活塞，所述活塞相对于主体限定两个气缸空间，其中一个气缸空间中的一个与高压管道连通，另一个通过分配 意味着交替地连接到高压管道和低压管道。 在活塞的两端都有通向自由气氛的呼吸室。 在所述两个气缸空间之一内，套筒状的分配装置被放置成环绕活塞，并且该分配装置为了移动到使活塞朝向工具的运动成为可能的位置，可以通过 当活塞处于其离工具最远的最终位置时，并且只有在高压管道中的压力超过装配在体内的可调节阀的压力的条件下，设置在活塞和主体中的凹槽。