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公开(公告)号：EP1832731A4
公开(公告)日：2013-11-27
申请号：EP05820179
申请日：2005-12-26
CPC分类号： E02F9/0866 , F01P5/06 , F01P11/10 , F01P11/12
摘要： Problem: To improve a soundproof performance on an air intake side of a cooling structure of a construction machine without enlarging an air intake chamber. Solution: An air intake chamber (16) is provided on the air intake side of a heat exchanger (15) in an engine room (12), and a first air intake port (17) is formed in a top face of the air intake chamber (16). In the air intake chamber (16), a duct (18) independently formed as a shield member is disposed so as to partition the air intake chamber (16) into two chambers (16a), (16b), and also in a manner such that the core surface (15a) of the heat exchanger (15) is enclosed airtightly from the surrounding atmosphere. A second air intake port (24) is formed in the duct (18); thereby, the air intake chamber (16) is constituted in a doubled duct structure, and air sucked from the first air intake port (17) is guided through an air intake passage to the core surface (15a) of the heat exchanger (15), the air intake passage being bent so as to be roughly L-shaped.
摘要翻译： 问题：提高施工机械的冷却结构的进气侧的隔音性能，而不会扩大进气室。 解决方案：在发动机室（12）的热交换器（15）的进气侧设置有吸气室（16），在进气口的上表面形成有第一空气吸入口（17） 室（16）。 在空气吸入室16中，设置独立地形成为屏蔽部件的管道18，以将进气室16分隔成两个室16a和16b而形成。 热交换器（15）的芯表面（15a）从周围的气氛气密地封闭。 第二进气口（24）形成在管道（18）中; 因此，吸气室16构成为双重管路结构，从第一吸气口17吸入的空气被引导到通过热交换器15的芯面15a的进气通路。 进气通道弯曲成大致L形。
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公开(公告)号：EP3309109A4
公开(公告)日：2018-05-16
申请号：EP16811629
申请日：2016-06-14
IPC分类号： B66C1/08
CPC分类号： B66C1/08
摘要： Simplification of a device configuration and control is realized, which enables attraction and release by a magnet without using a battery. A magnet work machine includes a generator motor (8) driven by an engine (7); and an inverter (10) which controls a magnet (6) and the generator motor (8) such that the magnet (6) is energized by electric power from the generator motor (8) to attract metal scraps or the like, and during demagnetization for releasing metal scraps or the like, electric power applied to the magnet (6) is transmitted to the generator motor (8) as regenerative power so as to be consumed. The inverter (10) determines a torque of the generator motor (8) as a motor according to a voltage change of a main circuit based on a detected main circuit voltage so as to suppress the voltage change, and gives the torque as a command.
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公开(公告)号：EP2645543A4
公开(公告)日：2018-04-25
申请号：EP11842761
申请日：2011-11-17
CPC分类号： F16H57/0434 , E02F9/123 , E02F9/126 , F16H1/46 , F16H57/0416 , F16H57/0417 , F16H57/0486 , H02K7/116 , H02K9/22
摘要： Provided is a drive apparatus for a construction machine in which a cooling effect of lubricating oil is enhanced and a manufacturing cost is reduced while the size in a diameter direction is small. The drive apparatus for a construction machine includes: a motor (1) having a motor shaft (5); a speed reducer unit (2) having a speed reducer output shaft (6) and a casing (4) and reducing speed of rotation force of the motor (1), and transmitting the force to an upper slewing body; and a cooler (15) formed with a coolant path (16) through which liquid or gas for cooling lubricating oil (O) inside the casing (4) passes as a cooling medium, wherein the motor (1) and the speed reducer unit (2) are provided in a row in an apparatus-axis direction such that the motor shaft (5) and the speed reducer output shaft (6) are arranged along the same line (Ce), and the cooler (15) is provided in a row with the speed reducer unit (2) in the apparatus-axis direction in a state where at least a part of the cooler (15) is immersed in the lubricating oil (O), so as to enable heat exchange with the lubricating oil (O).
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公开(公告)号：EP2650567A4
公开(公告)日：2018-04-18
申请号：EP11847587
申请日：2011-11-29
发明人： TERAUCHI KENICHI
IPC分类号： F16H57/027 , E02F9/12 , F16H57/10
CPC分类号： F16H57/027 , E02F9/123 , E02F9/128 , F16H57/04 , F16H57/0443 , F16H57/0486 , Y10T74/19991
摘要： The present invention provides a drive apparatus which is compact in a height direction and a diametrical direction and with which a sufficient air breather function can be obtained, and a construction machine including the drive apparatus. The drive apparatus includes an electric motor 1 and a speed reducer 2. An interior of a motor housing 3 communicates with a speed reducer chamber 12 such that a flow of air between the speed reducer chamber 12 and the interior of the motor housing 3 is permitted while limiting inflow of lubricating oil O into the interior of the motor housing 3 from the speed reducer chamber 12. An air breather passage 23 and an air breather pipe 24 for opening the interior of the motor housing 3 to the atmosphere are provided in the motor housing 3.
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公开(公告)号：EP2634314A4
公开(公告)日：2017-12-27
申请号：EP11835790
申请日：2011-10-14
发明人： OKADA KOJI
CPC分类号： E02F9/0866 , B01D53/9431 , E02F9/0833 , F01N3/2066 , F01N13/009 , F01N13/1805 , F01N2590/08 , F01N2590/10 , Y02A50/2325 , Y02T10/24
摘要： Provided is a construction machine that is capable of securing a maintenance space above a hydraulic pump while enabling a NOx-reducing catalyst to be installed, not involving a significant increase in cost. The construction machine includes: a frame; an engine installed on the frame; a hydraulic pump adapted to be driven by the engine; a guard panel disposed on the frame to surround an engine room and having a maintenance port for the hydraulic pump; an exhaust-gas-purification device provided inside the engine room and connected to the engine via an exhaust pipe; and a support member adapted to support an exhaust-gas-aftertreatment device including the exhaust-gas-purification device, inside the engine room at a position just above the hydraulic pump. The support member has a purification device supporting portion to support the exhaust-gas-purification device and a catalyst supporting portion to support a NOx-reducing catalyst which is additionally included in the exhaust-gas-aftertreatment device, at a position closer to the maintenance port than the exhaust-gas-purification device. The catalyst supporting portion is adapted to support the NOx-reducing catalyst at a position higher than the exhaust-gas-purification device so as to form, over the hydraulic pump, a maintenance space having an upper end at a position higher than an upper end of a space formed under the purification device supporting portion and the exhaust-gas-purification device.
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公开(公告)号：EP3173368A4
公开(公告)日：2017-11-08
申请号：EP15824410
申请日：2015-07-10
发明人： KAWAI HIROAKI , HIEKATA TAKASHI , SASAI SHINTARO , HORI NAOTO , YAMASHITA TOSHIRO , SHIMOMURA KOICHI
IPC分类号： B66D5/30 , B60T8/17 , B66C13/23 , B66C13/28 , B66D1/12 , B66D1/40 , B66D1/42 , B66D1/46 , B66D1/48 , H02P3/14
CPC分类号： B66D5/18 , B60T8/17 , B66C13/28 , B66C13/46 , B66D1/485 , B66D5/30 , B66D2700/0141 , B66D2700/03
摘要： The electric winch device includes a required braking force estimation section (44) which estimates a required braking force which is a braking force required to stop a free-falling object at a position at an allowable stopping height set by a setting unit; a braking force determination section (50) which determines, out of an operational braking force estimated by an operational braking force estimation section, each of a first braking force to be borne by a braking device and a second braking force to be borne by a braking force which is generated in an electric motor due to consumption of regenerative power; and a control section (52) which causes the braking device to apply the first braking force, which has been determined by the braking force determination section, to a winch drum. The braking force determination section (50) determines the first braking force to be a braking force equal to or greater than the required braking force when, at a time of stopping of the free-falling object, the operational braking force estimated by the operational braking force estimation section (44) is equal to or greater than the required braking force.
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公开(公告)号：EP3072845A4
公开(公告)日：2017-07-19
申请号：EP14864287
申请日：2014-11-06
发明人： HIEKATA TAKASHI , KAWAI HIROAKI , YAMASHITA TOSHIRO , SASAI SHINTARO , HORI NAOTO , SHIMOMURA KOICHI
摘要： Provided is an electric winch device including: an electric motor; a winch drum; a brake; an operation lever; an ammeter; and a controller. The controller includes: a first torque derivation unit which derives a value of a first torque applied to the winch drum due to a load of an object; a second torque derivation unit which derives a value of a second torque generated in the winch drum in the direction of rotation for hoisting the object by a drive torque of the electric motor, on the basis of a current value measured by the ammeter; and a brake control unit which determines a timing for releasing a braking action on the winch drum after the operation lever has been operated to a hoisting side or a lowering side, on the basis of a differential between the second torque value derived by the second torque derivation unit and the first torque value derived by the first torque derivation unit, and which causes the brake to release the braking action on the winch drum by transmitting, to the brake, a control signal instructing release of the braking action on the winch drum at the determined timing.
摘要翻译： 提供了一种电动绞盘装置，包括：电动机; 绞车鼓; 刹车; 操作杆; 电流表; 和一个控制器。 该控制器包括：第一转矩导出单元，其导出由于物体的负载而施加到绞盘鼓上的第一转矩的值; 第二转矩导出单元，其基于由电流计测量的电流值导出在用于通过电动机的驱动转矩提升对象的旋转方向上在绞车滚筒中产生的第二转矩的值; 以及制动控制单元，该制动控制单元基于由第二转矩获得的第二转矩值与第二转矩之间的差，确定用于在操作杆已经被操作到提升侧或下降侧之后解除绞盘鼓上的制动作用的定时 以及通过第一转矩导出单元导出的第一转矩值，并且通过向制动器传递控制信号，该控制信号指示释放在绞盘鼓上的制动作用，该第一转矩值通过第一转矩导出单元导出，并且使制动器释放绞盘鼓上的制动作用 确定的时间。
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公开(公告)号：EP3106571A4
公开(公告)日：2017-04-05
申请号：EP15773784
申请日：2015-03-19
发明人： YAMASHITA KOJI , DOI TAKAYUKI
摘要： Provided is a rotation drive apparatus for rotating an upper rotary body of a construction machine, the rotation drive apparatus eliminating, while achieving a fundamental goal of stopping a rotation when an emergency stop operation is performed, wasteful stopping by a parking brake. The apparatus includes: an emergency stop switch (20); a rotation control section (12, 19) which performs control to stop a rotating motor (11) when the emergency stop operation is applied to the emergency stop switch (20); and a timer (21) which activates the parking brake (15) when a set period of time has elapsed after the emergency stop operation is performed. Preferably, the rotation control section (12, 19) detects a failure of an inverter (12) and causes the parking brake (15) to perform a braking operation before the elapse of the set period of time when the failure is detected.
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公开(公告)号：EP2980325A4
公开(公告)日：2016-06-08
申请号：EP14776370
申请日：2014-02-27
发明人： SUGANO NAOKI , NANJO TAKAO , OGUMA SHOTA , MAEKAWA SATOSHI , UEDA KOJI
CPC分类号： E02F3/425 , E02F3/32 , E02F9/2239 , E02F9/2242 , E02F9/2282 , E02F9/2285 , E02F9/2292 , E02F9/2296 , F15B11/17 , F15B13/06 , F15B2211/20546 , F15B2211/20576 , F15B2211/30565 , F15B2211/30595 , F15B2211/45 , F15B2211/50536 , F15B2211/7135 , F15B2211/7142
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公开(公告)号：EP2832932A4
公开(公告)日：2015-07-15
申请号：EP13767558
申请日：2013-02-12
发明人： HIROZAWA MITSUNORI , UEDA KOJI
CPC分类号： E02F9/2239 , E02F3/435 , E02F9/2066 , E02F9/2217 , E02F9/2246 , E02F9/2285 , E02F9/2292 , E02F9/2296 , F15B11/024 , F15B11/17 , F15B2211/20523 , F15B2211/20576 , F15B2211/3058 , F15B2211/30595 , F15B2211/41527 , F15B2211/41581 , F15B2211/6309 , F15B2211/6313 , F15B2211/6316 , F15B2211/6346 , F15B2211/665 , F15B2211/6651 , F15B2211/6652 , F15B2211/6654 , F15B2211/78 , F15B2211/88
摘要： A control device is configured to sufficiently reduce the drive loss of a hydraulic pump. The control device is provided with a controller (14) configured to control a regeneration valve (22) to switch to a regeneration state, and to control the flow rate of a second hydraulic pump (16) to reduce the ejection flow rate of the second hydraulic pump (16) in accordance with regeneration of hydraulic oil through the regeneration valve (22) when a combined operation of lowering a boom and pressing an arm is performed. The controller (14) outputs a command for setting the number of rotations of an engine (5) to be smaller than the rotation number designated by a rotation number designating unit (29) when the ejection flow rate of the second hydraulic pump (16) is not larger than a predetermined flow rate during the combined operation.
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