公开(公告)号：US20240326217A1

公开(公告)日：2024-10-03

申请号：US18130038

申请日：2023-04-03

申请人： Caterpillar Inc.

发明人： Cody MOORE

IPC分类号： B25D17/06 ,  E02F3/96 ,  E02F9/22 ,  F15B1/04 ,  F15B11/08 ,  F15B13/02 ,  F15B15/00

CPC分类号： B25D17/06 ,  E02F3/966 ,  E02F9/2217 ,  E02F9/2225 ,  F15B1/04 ,  F15B11/08 ,  F15B13/027 ,  F15B15/00 ,  B25D2217/0023 ,  E02F9/2285

摘要： A piston for a hydraulic hammer of a work machine is disclosed. The piston comprises a first portion having a first diameter, a second portion having a second diameter larger than the first diameter, the second portion having a plurality of grooves, and a third portion having a third diameter less than the second diameter.

公开(公告)号：US12103161B2

公开(公告)日：2024-10-01

申请号：US17309640

申请日：2019-11-26

申请人： BROKK AKTIEBOLAG

发明人： Tobias Nordin

IPC分类号： B25J19/02 ,  B25J5/00 ,  B25J13/06 ,  E02F9/20 ,  H04W4/06 ,  E02F3/96 ,  E04G23/08

CPC分类号： B25J13/06 ,  B25J5/005 ,  B25J19/023 ,  E02F9/2004 ,  E02F9/205 ,  H04W4/06 ,  E02F3/966 ,  E04G23/082

摘要： A remote-controlled demolition robot has improved field of application The demolition robot includes a chassis, a base with a rotatable top, a moveable arm, a working tool, a controller, and a remote-control intended to be impacted by an operator. The demolition robot is arranged to give commands that are registered by the controller for operation of the remote-controlled demolition robot. The demolition robot also includes a broadcaster and an image sensor, which can register first image data and second image data of a scene of surroundings of the demolition robot from at least two different view directions. The broadcaster can communicate with an image display, which is arranged to show, in real time, an image area of the scene to an operator, who can control and operate the demolition robot through indirect viewing.

公开(公告)号：US20240173838A1

公开(公告)日：2024-05-30

申请号：US18284575

申请日：2022-03-29

申请人： SANDVIK MINING AND CONSTRUCTION OY

发明人： Erik AIRAS ,  Juho HUOTARI ,  Ilkka NIEMI ,  Juha INTONEN ,  Jarkko LUOKKALA

IPC分类号： B25D17/00 ,  E02F3/96

CPC分类号： B25D17/00 ,  B25D2250/121 ,  E02F3/966

摘要： A shield arrangement, breaking hammer and method of protecting body of a breaking hammer is provided. The shield arrangement includes a shield element, which is mounted to the body by means of a separate sleeve-like element passing through an opening of the shield element. The sleeve-like element is a tool bushing, which also provides support for a breaking tool.

公开(公告)号：US20230407597A1

公开(公告)日：2023-12-21

申请号：US18210149

申请日：2023-06-15

申请人： Caterpillar SARL

发明人： Isao KONISHI ,  Hiroshi MAEDA ,  Hirotaka MINAMIURA ,  Kazuya MIYAMORI ,  Yoshitaka KATO

IPC分类号： E02F9/22 ,  F15B13/02 ,  F15B19/00

CPC分类号： E02F9/2228 ,  E02F9/2296 ,  E02F9/2275 ,  E02F9/2267 ,  E02F9/226 ,  E02F9/2235 ,  F15B13/027 ,  F15B19/00 ,  E02F3/966

摘要： Provide a hydraulic circuit that can prevent damage to the oil cooler while suppressing excessive rise in the temperature of the operating oil. The hydraulic circuit includes a control valve that controls supply of operating oil from the hydraulic pump to the work tool; a first return pipeline that connects the control valve with the operating oil tank; an oil cooler disposed in the first return pipeline on a downstream side of a first check valve; a second return conduit that branches from the first return pipeline and extends to the operating oil tank without passing through the oil cooler; a third return pipeline that branches from the pipeline and extends to the first return pipeline between the first check valve and the oil cooler; a solenoid valve disposed in the third return pipeline; an operating device that outputs an operating signal of the work tool; a controller that opens the control valve and the solenoid valve based on the signal output from the operating device; and an operating oil temperature sensor. The controller reduces the amount of operating oil passing through the oil cooler when a temperature detected by the temperature sensor is less than a predetermined value.

公开(公告)号：US11752612B2

公开(公告)日：2023-09-12

申请号：US17101505

申请日：2020-11-23

申请人： Caterpillar Inc.

发明人： Cody Moore ,  Akshay D. Mate ,  Hariom Kumar Gupta ,  Dhanunjaya D. Reddy ,  Chetan Vilas Dahiwal

IPC分类号： B25D17/22 ,  E02F3/96

CPC分类号： B25D17/22 ,  E02F3/966 ,  B25D2217/0057

摘要： A dust suppression system for a demolition hammer is disclosed. The dust suppression system may have a water hose routed within a power cell of the demolition hammer, and a connector channel internal of the walls of a front head of the demolition hammer. The water hose may be utilized to deliver water from outside of the demolition hammer to a connection valve on a top end of the front head, and the internal connector channel may deliver water from the connection valve to one or more nozzles located at a bottom end of the front head.

公开(公告)号：US20180305892A1

公开(公告)日：2018-10-25

申请号：US15765975

申请日：2016-10-05

申请人： Angus Robson

发明人： Angus Robson

IPC分类号： E02F3/96 ,  B28D1/26

CPC分类号： E02F3/966 ,  B28D1/26

摘要： An impact hammer (1) for breaking a working surface (5), the hammer including a drive mechanism (11, 12, 14) and a housing (6) with an inner containment surface (8) and a reciprocating hammer weight (9). A reciprocation cycle of the hammer weight (9) includes an upstroke and a down-stroke, the hammer weight (9) respectively moving upwards and downwards. On the down-stroke the hammer weight (9) impacts a striker pin (4) with a driven end (17) and a working surface impact end (18). A vacuum chamber (22) in the housing is formed by the containment surface (8), upper vacuum sealing (24) coupled to the hammer weight (9) and lower vacuum sealing (25). The hammer weight (9) is driven toward the striker pin (4) by the pressure differential between atmosphere and the vacuum chamber (22) formed on the upstroke. A down-stroke vent (43) permits fluid egress from the vacuum chamber (22) on the down-stroke.

公开(公告)号：US20180169848A1

公开(公告)日：2018-06-21

申请号：US15380942

申请日：2016-12-15

申请人： Caterpillar Inc.

发明人： Austin PHAN

IPC分类号： B25D17/02

CPC分类号： B25D17/02 ,  B25D2217/0007 ,  B25D2250/211 ,  E02F3/961 ,  E02F3/966

摘要： A work tool for a hammer is disclosed. The work tool may include a first terminal end having a planar surface, and a second terminal end opposite the first terminal end and including a tool tip. The work tool may further include a shank between the first and second terminal ends and including a proximal first shank portion and a distal second shank portion coaxially aligned. The work tool may further include a collar between the first and second shank portions. The collar may include a rectangular portion forming lateral sides of the collar, each of the lateral sides including a planar surface that extends in a direction along an axis of the work tool. The collar may further include a flange having a diameter greater than a diameter of the shank and greater than a length of a lateral side of the rectangular portion.

公开(公告)号：US20170282343A1

公开(公告)日：2017-10-05

申请号：US15085794

申请日：2016-03-30

申请人： Caterpillar Inc.

发明人： Cody Moore ,  Joshua Grzybowski

IPC分类号： B25D9/00 ,  E02F3/96 ,  F16K27/00

CPC分类号： B25D9/00 ,  B25D9/12 ,  B25D17/245 ,  B25D2250/065 ,  E02F3/963 ,  E02F3/966

摘要： A method of regulating the disassembly of a component from a powered tool assembly that uses a pressurized fluid and a locking member that is in operative association or communication with the fluid is provided. The method comprises biasing the locking member into a locked configuration using the pressurized fluid, preventing movement of the component in a first predetermined direction.

公开(公告)号：US09777842B2

公开(公告)日：2017-10-03

申请号：US14749563

申请日：2015-06-24

申请人： SANDVIK MINING AND CONSTRUCTION OY

发明人： Ossi Kahra ,  Jyrki Nissinen

IPC分类号： B25D17/00 ,  F16J15/54 ,  F16J15/56 ,  F16J15/3272 ,  E02F3/96

CPC分类号： F16J15/545 ,  B25D17/00 ,  B25D2250/065 ,  B25D2250/365 ,  E02F3/966 ,  F16J15/3272 ,  F16J15/56

摘要： A seal of a tool of a breaking hammer, a sealing arrangement, a breaking hammer and a method of sealing a tool of breaking hammer is provided. The seal is a sealing ring having an outer periphery provided with several projecting elements, which are slanted. The projecting elements generate torque in the sealing ring when being pushed in a transverse direction during use of the breaking hammer. Thus, the sealing ring may rotate relative to the tool.

公开(公告)号：US20170274515A1

公开(公告)日：2017-09-28

申请号：US15449459

申请日：2017-03-03

申请人： Sonny Frank

发明人： Sonny Frank

IPC分类号： B25D9/14 ,  G01C9/06

CPC分类号： B25D9/14 ,  B25D2250/101 ,  B25D2250/221 ,  E02F3/966 ,  E02F9/265 ,  G01C9/06 ,  G01C2009/066

摘要： A leveling device assembly for use with a hydraulic hammer is provided. The leveling device assembly comprises a control unit, a leveling sensor in communication with the control unit, and a laser generator in communication with the control unit. Additionally, the laser generator is configured to produce a first colored light beam and a second colored light beam different from the first colored light beam. The control unit is further configured to cause the laser generator to produce the first colored light beam when the leveling sensor indicates the hydraulic hammer is in a substantially vertical position and produce the second colored light beam when the leveling sensor indicates the hydraulic hammer is in a substantially non-vertical position.