公开(公告)号：US11938942B2

公开(公告)日：2024-03-26

申请号：US16904764

申请日：2020-06-18

申请人： Auto Crane Company

发明人： Bryan Wutzke ,  Sam Dallas ,  Phillip Chavez

IPC分类号： B60W30/188 ,  B60K17/28 ,  B60K25/06 ,  B60W10/30 ,  B66C13/20 ,  B66C23/40

CPC分类号： B60W30/1888 ,  B60K17/28 ,  B60K25/06 ,  B60W10/30 ,  B66C13/20 ,  B66C23/40 ,  B60Y2200/416 ,  B66C2700/0357 ,  B66C2700/08 ,  B60K17/356 ,  B60T13/26

摘要： A system and method of this disclosure control an on/off state of a power take-off by monitoring the power demand of a fluid power circuit that includes the power take-off and a piece of equipment connected to the power take-off. The power demand may be indicated by a pressure or temperature of a fluid power circuit, by a motion of the equipment or its hand-held controller, or by an engine torque of an engine driving the power take-off. When the equipment transitions between an off state and an on state, the controller automatically engages the power take-off. When the equipment is in the on-state for a predetermined amount of time and the power demand is at or below a predetermined threshold during the predetermined amount of time—thereby indicating idle time or an inactive state of the equipment—the controller automatically disengages the power take-off.

公开(公告)号：US11926510B2

公开(公告)日：2024-03-12

申请号：US16976358

申请日：2019-02-28

申请人： TADANO LTD.

发明人： Tomokazu Goto ,  Shinsuke Kanda ,  Kazuma Mizuki

IPC分类号： B66C13/20 ,  B66C13/48 ,  B66C23/00 ,  B66C23/90 ,  B66C13/06

CPC分类号： B66C13/20 ,  B66C13/48 ,  B66C23/54 ,  B66C23/90 ,  B66C13/06

摘要： This crane is provided with: a operable functional unit; an actuator; a generation unit that generates a first control signal including a first deceleration signal section composed of a control signal for decelerating a speed of the operable functional unit from a first speed to a second speed and a first constant-speed signal section composed of a control signal for maintaining the speed of the operable functional unit at the second speed; a filter unit for filtering the first control signal to generate a second control signal; and a control unit that controls the actuator so as to decelerate the operable functional unit based on the second control signal, then controls the actuator so as to maintain the speed at the second speed, and controls the actuator so as to zero the speed when a load has been moved to a location satisfying a prescribed condition.

公开(公告)号：US20220297988A1

公开(公告)日：2022-09-22

申请号：US17695274

申请日：2022-03-15

申请人： ALMAC S.R.L.

发明人： Andrea ARTONI ,  Lorenzo DOSI

IPC分类号： B66C23/80 ,  B66C13/20

摘要： A stabilised machine that comprises; a self-propelled base frame movably supported by a motorised ground support arrangement and provided with an upper support plane; a motorised turntable supported on top of the support plane of the base frame and rotatable with respect to an axis of rotation orthogonal to the support plane; an elevating arm, one first end of which is articulated to the turntable and one second opposed free end of which is adapted to be fixed to an operating arrangement; a plurality of stabilisers each of which is rotatably associated with the base frame about an axis of oscillation lying on a plane orthogonal to the axis of rotation of the turntable, alternatively between a working position, in which it is supported on the ground in addition to or as an alternative to the support arrangement, and a rest position, in which it is raised off the ground; a control system comprising a plurality of sensors, one for each of the stabilisers, wherein each sensor is configured to detect a first parameter indicative of an inclination of the respective stabiliser about its axis of rotation, and an electronic control unit operatively coupled to the plurality of sensors.

公开(公告)号：US10669131B2

公开(公告)日：2020-06-02

申请号：US15804272

申请日：2017-11-06

申请人： KOBELCO CONSTRUCTION MACHINERY CO., LTD.

发明人： Takahiro Oka ,  Hiroyuki Otsuka ,  Shoji Watanabe ,  Daisuke Takaoka ,  Tetsuya Kobatake ,  Shingo Kurihara

IPC分类号： B66C13/20 ,  B66C23/92

摘要： Provided is a construction machine capable of suppressing deformation of a boom in a simple configuration and at low costs. The construction machine includes a pair of backstops having respective hydraulic cylinders; a supply device which supplies the hydraulic cylinders with hydraulic fluid; a deformation sensing device which senses deformation of the boom; and a control device which controls the supply device so as to make a thrust of the hydraulic cylinder of one backstop having a larger pressing force, out of the pair of backstops, be larger than a thrust of the hydraulic cylinder of the other backstop, the pressing force being applied due to the deformation of the boom.

公开(公告)号：US20190308851A1

公开(公告)日：2019-10-10

申请号：US16308988

申请日：2017-05-17

申请人： Cargotec Patenter AB

发明人： Per GUSTAFSSON ,  Sten SIRÉN

IPC分类号： B66C13/48 ,  B66C23/42 ,  B66C23/70 ,  B66C23/00 ,  B66C15/04 ,  B66C13/20 ,  B66C13/44 ,  B66C23/88

摘要： A hydraulic crane comprising: —a rotatable column (7); —a crane boom system comprising a first crane boom (11) connected to the column; and —an electronic control device for controlling the movement of the column and the crane boom system on of the basis of control signals from a manoeuvring unit and a calculation model for boom tip control. The control device is configured to switch from a first control mode into a second control mode when the first crane boom is about to interfere with an obstacle. In the first control mode, the control device controls the crane boom movements in accordance with an ordinary control strategy. In the second control mode, the control device makes the load suspension point (P) of the crane boom system move along the trajectory defined by said control signals while controlling the crane boom movements in accordance with an auxiliary control strategy in which the first crane boom is prevented from interfering with the obstacle.

公开(公告)号：US20190276279A1

公开(公告)日：2019-09-12

申请号：US16284403

申请日：2019-02-25

申请人： J. Schmalz GmbH

发明人： Norman Paul

IPC分类号： B66C1/02 ,  B66C13/20

摘要： The invention relates to an operating device for a tube lifter having a lifting tube that has a tube interior and can be shortened by applying a vacuum to the tube interior, and having a suction grip device arranged on one end of the tube lifter, which suction grip device can be supplied with a vacuum through the tube interior, the operating device having a suction port for fluid communication with the suction grip device, a lifting tube port for fluid communication with the tube interior of the lifting tube, and valve means for controlling the fluid communications, the valve means including a control valve which is adjustable between a closed position and an open position, in the open position a flow path from the surroundings to the lifting tube port being open, and in the closed position said flow path being substantially closed, and a control mechanism comprising a manually actuable operating element being provided for adjusting the control valve.

公开(公告)号：US20190106306A1

公开(公告)日：2019-04-11

申请号：US16153386

申请日：2018-10-05

申请人： SUMITOMO HEAVY INDUSTRIES CONSTRUCTION CRANES CO., LTD.

发明人： Tadashi Miyazaki

IPC分类号： B66C23/86 ,  B66C13/20 ,  B66C23/00 ,  F15B11/10 ,  F15B13/042

摘要： A working machine includes a lower body, a turning body, a turning manipulating member which turns the turning body, a hydraulic motor which rotationally drives the turning body, a brake device which brakes the hydraulic motor, amain hydraulic source which supplies hydraulic oil to the hydraulic motor, and a direction control valve which controls a flow direction of the hydraulic oil according to the manipulated variable of the turning manipulating member, in which in a state where the hydraulic motor is braked by the brake device based on a manipulation of a brake manipulating member, when the turning manipulation is performed by the turning manipulating member, a brake applied to the hydraulic motor by the brake device is released with respect to turning in an indication direction indicated by the turning manipulation such that the turning body turns in the indication direction.

公开(公告)号：US20170022034A1

公开(公告)日：2017-01-26

申请号：US15212619

申请日：2016-07-18

申请人： KOBELCO CONSTRUCTION MACHINERY CO., LTD.

发明人： Takahiro IWAZAWA

IPC分类号： B66C23/74 ,  B66C13/20

CPC分类号： B66C23/74 ,  B66C13/20

摘要： A mobile crane includes a crane main body including a control valve which controls a supply flow rate of hydraulic oil to a main-body driving motor and a pilot-pressure control device which controls a pilot pressure supplied to the control valve. The pilot-pressure control device increases the pilot pressure at a first ratio according to an increase in an operation amount of an operation section when a counterweight carrier is an uncoupled state, increases the pilot pressure at a second ratio lower than the first ratio according to the increase in the operation amount when the counterweight carrier is a coupled state and a grounded state, and increases the pilot pressure at a third ratio higher than the second ratio and equal to or lower than the first ratio according to the increase in the operation amount when the counterweight carrier is the coupled state and an afloat state.

摘要翻译： 一种移动式起重机包括起重机主体，其包括控制阀，该控制阀控制到主体驱动电动机的液压油的供给流量，以及控制向控制阀供给的先导压力的先导压力控制装置。 先导压力控制装置根据当配重载体为非联接状态时的操作部的操作量的增加而以第一比率增加先导压力，以比第一比例低的第二比例增加先导压力，根据 当配重载体为联接状态和接地状态时的操作量的增加，并且以比第二比高的第三比例增加先导压力，并且根据操作量的增加等于或低于第一比率 当配重载体是耦合状态和漂浮状态时。

公开(公告)号：US09045316B2

公开(公告)日：2015-06-02

申请号：US13394189

申请日：2011-03-24

申请人： Liang Wan ,  Jiaqian Wang ,  Peilin Li ,  Shuai Wang

发明人： Liang Wan ,  Jiaqian Wang ,  Peilin Li ,  Shuai Wang

IPC分类号： G05D7/00 ,  B66C13/06 ,  B66C13/20 ,  E04G21/04

CPC分类号： B66C13/066 ,  B66C13/20 ,  E02F9/2228 ,  E02F9/2232 ,  E04G21/0418 ,  E04G21/0463 ,  F15B2211/30535 ,  F15B2211/327 ,  F15B2211/351 ,  F15B2211/665 ,  F15B2211/6654 ,  F15B2211/71 ,  F15B2211/78 ,  G05B19/46

摘要： Disclosed are a concrete distributing device and a control method, a control system and an electrical control system for composite motion of a boom thereof. The control method comprises the steps as follows: calculating the flow of a boom pump when an operating handle sends a command; according to the command sent by the operating handle, calculating theoretical demand flow of all actuating mechanisms of the boom and theoretical control signals of all electronic proportional control valves; comparing the total theoretical demand flow of the actuating mechanisms with the flow of the boom pump; providing the theoretical control signals to all the electronic proportional control valves when the flow of the boom pump is greater than or equal to the total theoretical demand flow of the actuating mechanisms, otherwise, providing actual control signals smaller than the theoretical control signals to all the electronic proportional control valves and reducing the movement speeds of all the actuating mechanisms proportionally. In this way, when undersaturation of system occurs to the composite motion of the boom, the movement speeds of all the actuating mechanisms are reduced proportionally independent of the load difference of the actuating mechanisms, thereby ensuring that the boom can move in a motion track expected by an operator.

摘要翻译： 公开了一种混凝土分配装置和控制方法，控制系统和用于其悬臂的复合运动的电气控制系统。 控制方法包括以下步骤：当操作手柄发出指令时，计算吊臂泵的流量; 根据操作手柄发出的指令，计算所有电动比例控制阀的动臂所有执行机构的理论需求流量和理论控制信号; 将致动机构的总理论需求流量与动臂泵的流量进行比较; 当动臂泵的流量大于或等于致动机构的总理论需求流量时，向所有电子比例控制阀提供理论控制信号，否则，将比理论控制信号小的实际控制信号提供给所有 电子比例控制阀，并按比例降低所有致动机构的运动速度。 以这种方式，当系统的不饱和度发生到起重臂的复合运动时，所有致动机构的移动速度按比例减小，而与致动机构的负载差异无关，从而确保起重臂能够在预期的运动轨迹中移动 由运营商

公开(公告)号：US20130311051A1

公开(公告)日：2013-11-21

申请号：US13894133

申请日：2013-05-14

申请人： Hitachi Sumitomo Heavy Industries Construction Crane Co., Ltd.

发明人： Koji TORII

IPC分类号： B66C13/20

CPC分类号： B66C13/20

摘要： A control device for a hydraulic winch includes: a hydraulic source; a variable-displacement hydraulic motor; a winch operation member; an accelerator operation quantity detection unit; an engine control unit; a rotation speed detection unit; a line pull detection unit; a condition decision unit; and a motor displacement control unit, wherein: once the condition decision unit decides that the fuel-efficient, high-speed operation condition has been established, the engine control unit sets an upper limit to the engine rotation speed at a predetermined rotation speed, lower than the maximum rotation speed.

摘要翻译： 一种用于液压绞盘的控制装置包括：液压源; 可变排量液压马达; 绞车操作员; 加速器操作量检测单元; 发动机控制单元; 转速检测单元; 线拉检测单元; 条件决定单元; 以及电动机位移控制单元，其中：一旦所述条件判定单元判定已经建立了高效率的高速运行状态，则所述发动机控制单元以预定的转速设定发动机转速的上限，下限 比最大转速。