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公开(公告)号：EP4409074A1
公开(公告)日：2024-08-07
申请号：EP22800389.3
申请日：2022-09-26
申请人： Caterpillar Inc.
IPC分类号： E02F3/38
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公开(公告)号：EP4396416A1
公开(公告)日：2024-07-10
申请号：EP22777852.9
申请日：2022-09-02
发明人： DURKIN, Brent
CPC分类号： E02F3/3414 , E02F9/2095 , E02F3/38
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公开(公告)号：EP4350081A1
公开(公告)日：2024-04-10
申请号：EP22200074.7
申请日：2022-10-06
摘要： The invention relates to a construction equipment (2) comprising a framework (80) and at least one electric actuator (10.1, 10.2, 10.3) for moving at least one element of the framework, wherein the actuator comprises:
- a ball or roller screw system comprising a threaded rod (12) and a nut (14) forming a helical connection with the threaded rod,
- an electric motor (16) for driving the rod in rotation around a longitudinal axis (X12), thereby forcing the nut (14) to move axially along the rod;
- a carriage (15) which is axially connected with the nut, and
- axial guide means (24) for guiding the movement of the carriage, wherein the guide means are fixed to the framework,
- at least one support element (22) that connects, directly or indirectly, threaded rod (12) to framework (80), wherein said support element (22) is designed so that threaded rod can tilt, to some extent, relative to framework (80) around any axis perpendicular to rod longitudinal axis (X12).-
公开(公告)号：EP4155464A1
公开(公告)日：2023-03-29
申请号：EP21809614.7
申请日：2021-05-18
发明人： KUMATA, Daisuke
摘要： Provided is a work machine capable of rotating an attachment while appropriately supporting a load applied to the attachment. A work machine comprising: a hydraulic cylinder attached to a body side surface of an arm and extending and contracting; a first link rod extending along a back side surface of the arm; and a second link rod rotatably supported on a side surface of the arm via a first pin extending in the width direction of a front working device, the second link rod having one end which projects toward the back side surface of the arm and the other end which projects toward the body side surface of the arm, one end of the first link rod being rotatably connected to the attachment, the one end of the second link rod being rotatably connected to the other end of the first link rod via a second pin extending in the width direction of the front working device, and the other end of the second link rod being rotatably connected to a distal end of a cylinder rod of the hydraulic cylinder via a third pin extending in the width direction of the front working device.
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公开(公告)号：EP3859100A1
公开(公告)日：2021-08-04
申请号：EP19865937.7
申请日：2019-05-21
发明人： TAKAHASHI, Kaori , TADA, Shigeya , IIDA, Tsutomu , KOUDA, Jyunichi , KANIWA, Hiromitsu , WATANABE, Masahiko , HIRATA, Kazuya
摘要： There is provided a work machine in which the transportation height of a front device having a boom, a middle arm, and an arm can be reduced, and the working range of the front device can be widened to improve working efficiency. The middle arm 12, which is a constituent member of the front device 4, is bisected into a first middle arm 17 and a second middle arm 18, wherein the first middle arm 17 is rotatably connected to the tip side of an upper boom 11 and has one end part of a middle arm cylinder 22 attached thereto, and the second middle arm 18 is rotatably connected to the rear end side of an arm 13 and has one end part of an arm cylinder 24 attached thereto. The first middle arm 17 and the second middle arm 18 are connected to each other at two locations by an inner pivot pin 20 that is prevented from falling out and an extractable outer connection pin 21. When the connection pin 21 is extracted from the first middle arm 17 and the second middle arm 18, the second middle arm 18 rotates around the pivot pin 20 to be folded with respect to the first middle arm 17.
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公开(公告)号：EP3717717A1
公开(公告)日：2020-10-07
申请号：EP18822274.9
申请日：2018-11-28
申请人： Schwing GmbH
发明人： OLEKSYUK, Mykola
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公开(公告)号：EP3508658A1
公开(公告)日：2019-07-10
申请号：EP18197905.5
申请日：2018-10-01
发明人： ENDO, Kazuomi
摘要： A determination portion (71) determines whether a working device (4) is at a receivable posture which allows a receiving device (6) to receive a radio signal transmitted from a transmission device (5) or the working device is at an unreceivable posture which does not allow the receiving device to receive the radio signal transmitted from the transmission device based on posture information detected by a posture sensor. Then, when determining that the working device (4) is at the unreceivable posture, the determination portion sets the receiving device in a power saving mode. On the other hand, when determining that the working device (4) takes the receivable posture with the receiving device being set in the power saving mode, the determination portion returns the receiving device (6) to a normal power mode.
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公开(公告)号：EP3051031B1
公开(公告)日：2018-08-22
申请号：EP15162495.4
申请日：2015-04-02
发明人： WAGNER, Edward
CPC分类号： E02F3/422 , E02F3/34 , E02F3/342 , E02F3/38 , E02F9/0841
摘要： A lifting arrangement for a construction machine comprises a main arm (3) which is provided with a pivot connector (4) at a proximate end thereof and an equipment connector (5) at a distal end thereof, a main arm support means (6) for pivotably supporting said pivot connector (4) of said main arm (3), wherein said main arm support means (6) is movable in a direction which includes at least a component in the front-rear direction with respect to said frame arrangement. Further a guiding means (7) is provided which is engaged to said main arm (3) at a guided portion (10) of said main arm (3) positioned between said pivot connector (4) and said equipment connector (5).
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公开(公告)号：EP2497865B1
公开(公告)日：2018-08-01
申请号：EP12158292.8
申请日：2012-03-06
IPC分类号： E02F3/413 , E02F9/22 , B66C3/14 , E02F3/38 , B66C1/04 , B66C1/68 , B66C3/00 , B66C13/14 , F16B33/00 , F16B7/18 , F16B37/06
CPC分类号： E02F9/2275 , B66C1/04 , B66C1/68 , B66C3/00 , B66C13/14 , E02F3/38 , E02F3/413 , F16B7/18 , F16B37/061
摘要： Inner surfaces of two guard plates (11a) forming a piping guard (11) abut against end surfaces of nut bodies (13) fixed to opposite left and right side surfaces of an arm (8), and bolt through holes (11c) made in the guard plates (11a) are opposed to attachment positions of the nut bodies (13) corresponding thereto, respectively. Then, front end portions of the bolts (12) penetrating the bolt through holes (11c) are screwed into the nut bodies (13). Thus, the piping guard (11) is attached to the arm (8). Stoppers (14) are attached to places of the inner surfaces of the guard plates (11a) to abut against a front end portion of the arm (8) or against the nut bodies (13), to thereby prevent a shearing force from acting on the bolts (12). Thus, it is possible to provide an attachment structure of a piping guard in which the piping guard can be attached to an arm stably without any shearing force acting on bolts attaching the piping guard to the arm.
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公开(公告)号：EP3321426A4
公开(公告)日：2018-07-25
申请号：EP16844614
申请日：2016-08-29
申请人： KIM YOUNG GIL
发明人： KIM YOUNG GIL
摘要： An excavator having a rotatable arm is disclosed. The excavator includes: a vehicle body configured to have a hydraulic pump; a boom connected to the vehicle body at one end thereof; a boom cylinder coupled between the vehicle body and the boom, and configured to receive hydraulic energy from the hydraulic pump and operate the boom; an arm connected to the other end of the boom; an arm cylinder coupled between the boom and the arm, and configured to receive hydraulic energy from the hydraulic pump and operate the arm; a bucket connected to an end of the arm; and a bucket cylinder coupled between the arm and the bucket, and configured to receive hydraulic energy from the hydraulic pump and operate the bucket. The arm includes: a first body, a second body, and a rotation module configured to enable the rotational movement of the second body.
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