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公开(公告)号：EP4299838A3
公开(公告)日：2024-02-28
申请号：EP23179307.6
申请日：2023-06-14
发明人： KITAHARA, Satoshi
摘要： [Problem] Provide an electric work machine that, while effectively using a limited and narrow space in a machine, can cool (air-cool) an electric component.
[Solution] A hydraulic excavator as an electric work machine includes: an electric motor, a battery unit that stores electric power for driving the electric motor, an electric component to which the electric power is supplied from the battery unit, a first heat exchanger that cools a refrigerant which passes through the battery unit, a hydraulic pump that is driven by the electric motor thereby to discharge a hydraulic oil, a second heat exchanger that cools the hydraulic oil, a fan that has a rotary shaft, and a partition plate. The electric component, viewed from above, is positioned between the fan and the battery unit. The first heat exchanger and the second heat exchanger, viewed from a direction of the rotary shaft, are positioned overlapping the fan, and are so positioned as to be displaced from each other in one direction intersecting the rotary shaft. The partition plate, viewed from above, is positioned between the first heat exchanger and second heat exchanger, and the battery unit, and is positioned across the one direction.-
公开(公告)号：EP4321693A1
公开(公告)日：2024-02-14
申请号：EP23186168.3
申请日：2023-07-18
发明人： Löhr, Christian
摘要： Es wird ein Hydraulik-Arbeitsfahrzeug mit einem Arbeitswerkzeug, wobei wenigstens eine Werkzeughaltevorrichtung zum Halten des Arbeitswerkzeugs vorgesehen ist, wobei eine wenigstens eine Druckerzeugungsvorrichtung umfassende Hydraulikeinheit zum Betätigen und/oder Druckbeaufschlagen der Werkzeughaltevorrichtung und/oder des Arbeitswerkzeugs und/oder des Antriebselementes vorgesehen ist, wobei wenigstens eine Steuereinheit (11) zumindest ein steuerbares Hydraulik-Steuerelement (7, 8) und zumindest ein Bedienelement (13) zum manuellen Bedienen/Betätigen von einer Bedienperson aufweist, vorgeschlagen, die wenigstens teilweise die Nachteile des Standes der Technik verbessert. Dies wird erfindungsgemäß dadurch erreicht, dass wenigstens ein Sensor zum Erfassen eines Ist-Betriebsparameters der Druckerzeugungsvorrichtung und/oder des Bedienelementes und/oder der Hydraulikeinheit vorgesehen ist und dass eine Vergleichseinheit zum Vergleichen des Ist-Betriebsparameters mit einem Ruhe-Soll-Betriebsparameter eines Ruhezustandes der Druckerzeugungsvorrichtung (4) und/oder des Bedienelementes (13) und/oder der Hydraulikeinheit vorgesehen ist, wobei zwischen dem Ruhezustand und dem Betriebszustand der Druckerzeugungsvorrichtung (4) eine Anfahrzeitdauer zum Anfahren der Druckerzeugungsvorrichtung (4) bis zu einer Anfahrdrehzahl der Drehachse vorgesehen ist, und dass die Steuereinheit (11) als Steuereinheit (11) zum Erzeugen eines inaktiven Wartezustands der Werkzeughaltevorrichtung und/oder des Arbeitswerkzeugs und/oder des Antriebselementes während der Anfahrzeitdauer ausgebildet ist.
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公开(公告)号：EP4321692A1
公开(公告)日：2024-02-14
申请号：EP22784451.1
申请日：2022-03-16
发明人： TSUCHIE Yoshiyuki
摘要： Provided are a work machine and a work machine system that reduce risk that a vehicle body comes into contact with an obstacle nearby in a case wherein abnormality arises in the work machine. The work machine comprises: a traveling body; a rotary body rotatably mounted onto the traveling body; a work machinery of an articulated type mounted to the rotary body and including a boom, an arm and a work tool; and a control device. The control device comprises a control instruction calculation section, a machine control section, an abnormality detection section, an avoiding movement necessity determination section and an avoidance control instruction section. The machine control section controls the traveling body, the rotary body and the work machinery putting priority on the avoidance control instruction over the operation control instruction.
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公开(公告)号：EP4317606A1
公开(公告)日：2024-02-07
申请号：EP22781191.6
申请日：2022-03-30
发明人： MISAKI, Youji
摘要： An object is to provide a work machine and an operating device for a work machine with improved operability.
A work machine includes an operating device operable in a first direction and a second direction, a hydraulic pump configured to supply hydraulic oil, a hydraulic actuator, a directional control valve configured to control the hydraulic oil flowing from the hydraulic pump to the hydraulic actuator, and a control device configured to control the directional control valve based on the amount of operation of the operating device. The operating device is structured or placed such that a force is likely to escape in the second direction when the operating device is operated in the first direction or a force is likely to escape in the first direction when the operating device is operated in the second direction. The operating device is configured such that a dead area is relatively large with respect to the direction in which the force is likely to escape.-
公开(公告)号：EP4317599A1
公开(公告)日：2024-02-07
申请号：EP21935201.0
申请日：2021-12-17
发明人： HAYAKAWA, Naoki , IZUMI, Shiho
IPC分类号： E02F9/20
摘要： The invention of the present application intends to provide a completed-work information processing system that can generate terrain profile data that is easy to associate with the contents of work and a work area, on the basis of working history data that can be acquired in work execution by a work machine. For this purpose, a computation device computes movement loci of a work device when the work device is executing work of the ground and acquires working information from a working information acquiring device when determining that the work device is executing the work of the ground, records data in which the working information is associated with the movement loci of the work device, as the working history data, and outputs the terrain profile data to which the working information is added, with use of a movement locus assumed to be the current terrain profile among the movement loci of the work device included in the working history data and the working information associated with the movement locus assumed to be the current terrain profile.
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公开(公告)号：EP4317594A1
公开(公告)日：2024-02-07
申请号：EP22775462.9
申请日：2022-03-18
发明人： IZUMIKAWA, Takeya
摘要： The shovel (100) includes a lower traveling body (1), an upper turning body (3) turnably mounted on the lower traveling body (1), and an attachment attached to the upper turning body (3). The shovel (100) is configured to automatically decelerate or stop turning of the upper turning body (3) when the attachment is predicted to cross a design surface as a stop reference surface while the upper turning body (3) is turning. Further, the shovel (100) may be configured to prohibit a boom raising operation by automatic control when decelerating or stopping the turning of the upper turning body (3).
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公开(公告)号：EP4311885A1
公开(公告)日：2024-01-31
申请号：EP22177543.0
申请日：2022-06-07
IPC分类号： E02F9/20
摘要： The invention relates to a construction equipment (2), provided with at least one electric actuator (10.1, 10.2, 10.3) comprising an electric motor (16) and a mechanism (12, 14, 18) for transmitting the torque of the electric motor to an element of the construction equipment, such as a boom, dipper or tool, in order to move it in desired direction, wherein said mechanism includes a damper rod (18). The damper rod is configured to absorb shocks and therefore to avoid that the shocks are transmitted to sensitive parts of the electric actuator.
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公开(公告)号：EP4310256A1
公开(公告)日：2024-01-24
申请号：EP22815585.9
申请日：2022-02-24
发明人： OKIMOTO, Sho , SHIMAZU, Yasuhiko , YAMASHITA, Koji
摘要： Provided are a soil quality information acquisition system that enables acquisition of soil quality information at an appropriate time on a worksite, and a working machine including the system. The soil quality information acquisition system (100) includes a body position detection part (33), an acquisition time determination part (503), a soil quality information acquisition part (502), and a storage part (506). The body position detection part (33) acquires position information about a hydraulic excavator (1) on the worksite. The acquisition time determination part (503) determines an acquisition time on the basis of soil quality relevant information being information related a change in a quality on the worksite. The soil quality information acquisition part (502) receives an acquisition signal output from the acquisition time determination part (503), and acquires the soil quality information in response to the acquisition signal. The storage part (506) stores the position information and the soil quality information in association with each other.
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公开(公告)号：EP4303369A1
公开(公告)日：2024-01-10
申请号：EP22763269.2
申请日：2022-03-01
发明人： NARIKAWA Ryu , FUJITA Kouji , ITOU Hideaki , ISHIMOTO Hidefumi , SAITOH Teppei , NISHIZAWA Tadashi
摘要： Provided is a work machine that allows assisting a loading work without giving uncomfortable feeling to an operator. The control device 40 of the work machine 1 includes an allowable range calculation section 46 that calculates an allowable range indicating a range in which the front work device 2 is movable in a height direction allowed in a swing operation; an operation determining section 45 that determines whether the work machine 1 is under a convey operation; and an operation control section 4 that controls a turn operation of a boom 8 such that the position of the front work device 2 in the height direction remains within the allowable range when the work machine 1 is determined to be under the convey operation. The allowable range calculation section 46 calculates a range of the turn angle of the boom 8 as the allowable range defined by a lower limit value and an upper limit value. The lower limit value of a position of the front work device 2 in the height direction allows the front work device 2 to avoid interference with the loaded machine under the convey operation. The upper limit value of the position of the front work device 2 in the height direction is obtained based on at least one of dimension and capacity of the bucket 10, type of the loading target object, and specific gravity of the loading target object.
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