公开(公告)号：US10343272B2

公开(公告)日：2019-07-09

申请号：US15105236

申请日：2013-12-18

Applicant: NIPPON PNEUMATIC MANUFACTURING CO., LTD.

Inventor： Yuuji Morita ,  Seiichiro Tan

IPC: B25D9/18 ,  B25D9/26 ,  E21B1/00 ,  E21B4/06 ,  B25D9/14

Abstract: An impact-driven tool includes a cylinder and a piston slidably inserted into the cylinder and has a large-diameter portion. The cylinder includes: a chamber on one end side; a chamber on the other end side; a communication path that allows the chamber on one end side and the chamber on the other end side to communicate with each other; and a valve chamber that is continuous with one end side in the axial direction of the communication path, and a valve body for piston lifting control that is incorporated so as to be movable up and down and is provided in the valve chamber.

公开(公告)号：US10150209B2

公开(公告)日：2018-12-11

申请号：US15113645

申请日：2015-01-30

Applicant: Furukawa Rock Drill Co., Ltd.

Inventor： Toshio Matsuda ,  Tsutomu Kaneko

IPC: B25D9/14 ,  B25D9/18 ,  B25D9/20 ,  B25D9/26

Abstract: Provided is a hydraulic hammering device having improved hammering efficiency and of low cost. A piston has a valve switching groove between large-diameter sections thereof. A cylinder has three control ports at positions corresponding to the valve switching groove. A switching valve mechanism has a valve presser for always pressing a valve in one direction and also has a valve controller for moving, when supplying pressurized oil, the valve in the opposite direction against the pressing force of the valve presser. A valve control port communicates with the valve controller so as to supply the pressurized oil to the valve controller and is separated from a piston front chamber and a piston rear chamber. Only either a piston retraction control port or a piston advance control port communicates with the valve control port depending on advance or retraction of the valve switching groove.

公开(公告)号：US09737983B2

公开(公告)日：2017-08-22

申请号：US14945950

申请日：2015-11-19

Applicant: SANDVIK MINING AND CONSTRUCTION OY

Inventor： Timo Muuttonen ,  Antti Koskimäki ,  Ari Kotala ,  Timo Leino

IPC: B25D9/18 ,  B25D17/06 ,  E21B1/00

CPC classification number: B25D9/18 ,  B25D17/06 ,  B25D2217/0023 ,  E21B1/00

Abstract: A percussion piston for a rock drill machine having a pilot cylinder, a distributor and a pressure medium includes a control edge configurable to cause a change in the position of the distributor in a direction parallel to the axial direction of the percussion piston as the percussion piston moves in the impact direction (A) in relation to the pilot cylinder. The control edge of the percussion piston includes at least one notch provided on the outer periphery of the control edge and arranged to cause a start of a state change for the distributor before the control edge of the percussion piston passes by a corresponding control edge provided on the distributor or pilot cylinder.

公开(公告)号：US09592598B2

公开(公告)日：2017-03-14

申请号：US13839311

申请日：2013-03-15

Applicant: CATERPILLAR INC.

Inventor： Cody Moore

IPC: B25D9/14 ,  B25D9/04 ,  B25D9/12 ,  B25D9/18 ,  B25D9/20 ,  E02F3/96

CPC classification number: B25D9/145 ,  B25D9/04 ,  B25D9/12 ,  B25D9/18 ,  B25D9/20 ,  B25D2209/005 ,  B25D2250/065 ,  B25D2250/225 ,  B25D2250/231 ,  B25D2250/245 ,  B25D2250/365 ,  E02F3/966 ,  Y10T29/4973

Abstract: An impact system for a hydraulic hammer is disclosed. The impact system may include a piston, a sleeve disposed co-axial with the piston, and an accumulator membrane disposed external to the sleeve. A first seal may be located at an end of the sleeve, and configured to connect the sleeve to the piston. The accumulator membrane may have an extension configured to engage a recess in the sleeve.

Abstract translation: 公开了一种用于液压锤的冲击系统。 冲击系统可以包括活塞，与活塞同轴设置的套筒和设置在套筒外部的蓄能器膜。 第一密封件可以位于套筒的端部，并且构造成将套筒连接到活塞上。 蓄能器膜可以具有被配置为接合套筒中的凹部的延伸部。

公开(公告)号：US20160318166A1

公开(公告)日：2016-11-03

申请号：US15105236

申请日：2013-12-18

Applicant: NIPPON PNEUMATIC MANUFACTURING CO., LTD.

Inventor： Yuuji MORITA ,  Seiichiro Tan

IPC: B25D9/18 ,  E21B1/00

CPC classification number: B25D9/18 ,  B25D9/26 ,  B25D2250/131 ,  E21B1/00 ,  E21B4/06

Abstract: An impact-driven tool includes a cylinder and a piston slidably inserted into the cylinder and has a large-diameter portion. The cylinder includes: a chamber on one end side; a chamber on the other end side; a communication path that allows the chamber on one end side and the chamber on the other end side to communicate with each other; and a valve chamber that is continuous with one end side in the axial direction of the communication path, and a valve body for piston lifting control that is incorporated so as to be movable up and down and is provided in the valve chamber.

Abstract translation: 冲击驱动工具包括可滑动地插入到气缸中并具有大直径部分的气缸和活塞。 气缸包括：一端侧的腔室; 另一端的一个房间; 连通路径，其允许一端侧的腔室和另一端侧的腔室彼此连通; 以及与所述连通路径的轴向的一端侧连续的阀室，以及能够上下移动并设置在所述阀室中的活塞提升控制用阀体。

公开(公告)号：US20160144498A1

公开(公告)日：2016-05-26

申请号：US14945950

申请日：2015-11-19

Applicant: SANDVIK MINING AND CONSTRUCTION OY

Inventor： Timo MUUTTONEN ,  Antti KOSKIMÄKI ,  Ari KOTALA ,  Timo LEINO

IPC: B25D9/18 ,  E21B1/00 ,  B25D17/06

CPC classification number: B25D9/18 ,  B25D17/06 ,  B25D2217/0023 ,  E21B1/00

Abstract: A percussion piston for a rock drill machine having a pilot cylinder, a distributor and a pressure medium includes a control edge configurable to cause a change in the position of the distributor in a direction parallel to the axial direction of the percussion piston as the percussion piston moves in the impact direction (A) in relation to the pilot cylinder. The control edge of the percussion piston includes at least one notch provided on the outer periphery of the control edge and arranged to cause a start of a state change for the distributor before the control edge of the percussion piston passes by a corresponding control edge provided on the distributor or pilot cylinder

Abstract translation: 用于具有先导缸，分配器和压力介质的凿岩机的冲击活塞包括可配置成使得分配器在平行于冲击活塞的轴向的方向上的位置改变的控制边缘，作为冲击活塞 相对于先导气缸在冲击方向（A）上移动。 冲击活塞的控制边缘包括设置在控制边缘的外周上的至少一个凹口，并且布置成在冲击活塞的控制边缘经过相应的控制边缘之前引起分配器的状态改变开始 分配器或导向缸

公开(公告)号：US20160039080A1

公开(公告)日：2016-02-11

申请号：US14455715

申请日：2014-08-08

Applicant: CATERPILLAR INC.

Inventor： Cody Thomas Moore ,  Bart A. Fisher

IPC: B25D9/18 ,  B25D9/12

CPC classification number: B25D9/18 ,  B25D9/12 ,  B25D9/16 ,  B25D2250/375 ,  F15B11/072

Abstract: A self-charging assembly having a first side wall, a second side wall, a third sidewall, a first chamber, a second chamber, a first valve assembly, and a second valve assembly. The second side wall is disposed within the first side wall. The third sidewall connects the first side wall and the second side wall. The first chamber is defined by the first, second, and third sidewalls. The second chamber is disposed within the first chamber and is defined by the second side wall. The first valve assembly is configured to selectively place an interior portion of the second chamber in communication with an atmosphere outside of the self-charging assembly. The second valve assembly is configured to selectively place an interior portion of the first chamber in communication with the interior portion of the second chamber.

Abstract translation: 一种具有第一侧壁，第二侧壁，第三侧壁，第一室，第二室，第一阀组件和第二阀组件的自充电组件。 第二侧壁设置在第一侧壁内。 第三侧壁连接第一侧壁和第二侧壁。 第一室由第一，第二和第三侧壁限定。 第二室设置在第一室内并由第二侧壁限定。 第一阀组件构造成选择性地将第二室的内部部分与自充电组件外部的气氛相连通。 第二阀组件构造成选择性地将第一腔室的内部部分与第二腔室的内部部分连通。

公开(公告)号：US20150273677A1

公开(公告)日：2015-10-01

申请号：US14435209

申请日：2013-11-22

Applicant: ATLAS COPCO ROCK DRILLS AB

Inventor： Erik Jakobsson ,  Thomas Johansson

IPC: B25D9/20 ,  B25D9/12 ,  F15B13/02 ,  B25D9/18

CPC classification number: B25D9/20 ,  B25D9/12 ,  B25D9/18 ,  F15B13/02 ,  F16K27/041

Abstract: A device in a hydraulic rock drilling machine (1) including a distribution valve (7,7′, 7″) arranged in connection with the rock drilling machine for controlling hydraulic flows to different parts of the rock drilling machine, wherein the distribution valve includes a valve body (8, 8′, 8″), which is arranged movable to and fro in axial directions inside a valve chamber (33) and wherein the valve chamber is limited in axial direction by two valve end walls (10,11; 10′,11; 10″,11″). One of the valve end walls is movable in an axial direction against an abutment (12,12″) in such a way that it defines an end position for the valve body, and a pressing device (13,13′,13″) is arranged for pressing said at least one of the valve end walls against said abutment. The invention also relates to a rock drilling machine.

Abstract translation: 一种液压岩石钻探机（1）中的装置，包括与岩石钻孔机连接设置的分配阀（7,7'，7“），用于控制到凿岩机的不同部分的液压流，其中分配阀包括 阀体（8,8'，8“），其可在阀室（33）内沿轴向移动地布置，并且其中所述阀室在轴向上被两个阀端壁（10,11; 10'，11; 10“，11”）。 其中一个阀端壁可以以轴向方向抵靠着支座（12,12“）移动，从而限定阀体的终端位置，并且压紧装置（13,13'，13”）是 布置成用于将所述至少一个阀端壁压靠在所述基座上。 本发明还涉及一种凿岩机。

公开(公告)号：US20140326473A1

公开(公告)日：2014-11-06

申请号：US14364011

申请日：2012-12-03

Applicant: MONTABERT

Inventor： Jean-Sylvain Comarmond

IPC: B25D9/26 ,  B25D9/18

CPC classification number: B25D9/26 ,  B25D9/145 ,  B25D9/18

Abstract: A switching method includes starting up a percussion device in acting on a control device arranged to vary the striking stroke of the striking piston between a short striking stroke and a long striking stroke. The percussion device is forced to operate on a short striking stroke for a predetermined period of time from the starting up of the device, and in acting on the control device so as to allow the percussion device to operate on a long striking stroke, after the expiry of the predetermined period of time.

Abstract translation: 切换方法包括启动敲击装置作用在控制装置上，所述控制装置被布置成在短的冲击行程和较长的冲程之间改变打击活塞的冲击行程。 冲击装置被迫在短时间的冲击行程下从装置启动起预定的一段时间内操作，并且作用在控制装置上，以便使冲击装置能够在较长的击打行程上操作，之后 预定时间段到期。

公开(公告)号：US08733467B2

公开(公告)日：2014-05-27

申请号：US13130275

申请日：2009-11-17

Applicant: Lars Kandelin ,  Timo Muuttonen ,  Pekka Saukko

Inventor： Lars Kandelin ,  Timo Muuttonen ,  Pekka Saukko

IPC: B25D9/14 ,  B25D9/18 ,  B25D9/26 ,  B25D17/06

CPC classification number: B25D9/14 ,  B25D9/125 ,  B25D9/18 ,  B25D9/26 ,  B25D17/06 ,  B25D17/24 ,  B25D2250/331 ,  E21B6/04

Abstract: A rock drilling machine equipped with an axial bearing having at least one axial piston for setting the axial position of a drill shank and for damping stress pulses returning from the rock. The axial bearing includes a module that is detachable in one piece from one installation direction. The axial bearing module includes all necessary seals, bearing surfaces, and a module frame. Supporting forces caused by the operation of the axial bearing are transmitted of support members in the module frame directly to the body of the rock drilling machine, which is a uniform piece at least at the axial bearing.

Abstract translation: 一种装有轴向轴承的岩石钻孔机，具有至少一个轴向活塞，用于设定钻杆的轴向位置并用于阻尼从岩石返回的应力脉冲。 轴向轴承包括从一个安装方向可拆卸成一体的模块。 轴向轴承模块包括所有必需的密封件，轴承表面和模块框架。 由轴承轴承的作用引起的支撑力传递到模块框架中的支撑构件直接连接到凿岩机的主体，该钻机至少在轴向轴承处是均匀的。