公开(公告)号：US20180230669A1

公开(公告)日：2018-08-16

申请号：US15750851

申请日：2015-08-19

申请人： VOLVO CONSTRUCTION EQUIPMENT AB

发明人： Patrik STENER ,  Johan LILLEMETS

IPC分类号： E02F3/42 ,  E02F9/22 ,  E02F9/20 ,  F15B11/17 ,  F15B1/02

CPC分类号： E02F3/422 ,  E02F3/283 ,  E02F9/2095 ,  E02F9/2207 ,  E02F9/2217 ,  E02F9/2239 ,  E02F9/2267 ,  E02F9/2271 ,  E02F9/2289 ,  E02F9/2292 ,  F15B1/024 ,  F15B11/17 ,  F15B2211/20515 ,  F15B2211/20561 ,  F15B2211/212 ,  F15B2211/30

摘要： A hydraulic system for moving an implement of a working machine includes a hydraulic cylinder with a cylinder and a piston which is adapted to move in the cylinder to thereby move the implement relative to a body structure of the working machine, and an actuator pump arranged to provide hydraulic fluid to the hydraulic cylinder, the hydraulic cylinder having a first port and a second port adapted to be in fluid communication with the actuator pump, the hydraulic cylinder and the actuator pump being arranged so that the hydraulic cylinder is directly controlled by the actuator pump so that the rate of movement of the piston of the hydraulic cylinder is purely pump controlled, the hydraulic system further including a hydraulic accumulator for suspension of the implement, which hydraulic accumulator is arranged to be selectively connectable to the first port, the hydraulic system further including a further pump in addition to the actuator pump, the hydraulic accumulator being arranged to be pressurised by the further pump.

公开(公告)号：US09938692B2

公开(公告)日：2018-04-10

申请号：US14986843

申请日：2016-01-04

申请人： Caterpillar Inc.

发明人： Aaron R. Shatters ,  Eric W. Cler

IPC分类号： G01G19/08 ,  E02F9/26 ,  E02F3/28 ,  E02F3/42 ,  E02F9/22

CPC分类号： E02F9/26 ,  E02F3/283 ,  E02F3/422 ,  E02F9/2203 ,  E02F9/264 ,  G01G19/083

摘要： A payload weight of a load of material carried by an implement of a machine may be estimated taking into account angular acceleration of the payload. A lift cylinder pressure differential and a lift arm angular acceleration may be determined as the implement is raised through a weigh range. An angular acceleration compensation factor may be determined from the lift arm angular acceleration, and a compensated differential pressure may be calculated by multiplying the lift cylinder pressure differential by the angular acceleration compensation factor. The estimated payload weight may then be determined based on the compensated pressure differential and a head end cross-sectional area of the lift cylinder.

公开(公告)号：US20170370073A1

公开(公告)日：2017-12-28

申请号：US15626505

申请日：2017-06-19

申请人： KUBOTA CORPORATION

发明人： Yuji FUKUDA ,  Ryosuke KINUGAWA

IPC分类号： E02F9/22 ,  E02F9/20 ,  E02F3/42 ,  E02F9/16 ,  E02F3/34

CPC分类号： E02F9/2246 ,  E02F3/3414 ,  E02F3/422 ,  E02F9/166 ,  E02F9/2062 ,  E02F9/2066 ,  E02F9/207 ,  E02F9/2285 ,  E02F9/2292 ,  E02F9/2296

摘要： A work machine includes a prime mover, a hydraulic pump to be operated by the prime mover to output an operation fluid, a hydraulic device to be operated by the operation fluid, a measurement sensor to measure a first temperature and a second temperature, the first temperature being a temperature of the operation fluid at starting of the prime mover, the second temperature being a temperature of the operation fluid after the starting of the prime mover, and a controller including a determiner to determine an upper limit revolution speed based on the first temperature, the upper limit revolution speed being an upper limit of a revolution speed of the prime mover, and a changer to change the upper limit revolution speed based on the second temperature.

公开(公告)号：US09695574B2

公开(公告)日：2017-07-04

申请号：US14774786

申请日：2014-11-12

申请人： KOMATSU LTD.

发明人： Shunsuke Miyamoto ,  Takehiro Komatsu ,  Yasuo Fujiwara

IPC分类号： B60K6/365 ,  E02F9/20 ,  B60K6/445 ,  B60W10/10 ,  B60W10/26 ,  B60W20/00 ,  B60W10/08 ,  B60W20/10 ,  E02F3/34 ,  E02F3/42

CPC分类号： E02F9/2079 ,  B60K6/12 ,  B60K6/365 ,  B60K6/387 ,  B60K6/445 ,  B60K6/547 ,  B60K25/02 ,  B60K2006/126 ,  B60K2006/381 ,  B60K2025/026 ,  B60W10/08 ,  B60W10/10 ,  B60W10/115 ,  B60W10/26 ,  B60W20/00 ,  B60W20/10 ,  B60W2300/17 ,  B60W2710/083 ,  B60W2710/1005 ,  B60Y2200/415 ,  E02F3/34 ,  E02F3/422 ,  E02F9/2075 ,  Y02T10/6208 ,  Y02T10/6239 ,  Y02T10/6282 ,  Y02T10/7258 ,  Y10S903/902

摘要： A work vehicle includes a control unit having a motor switch control unit and a motor command determining unit. The motor switch control unit controls a motor switching mechanism so that a third motor connects to a first motor when a first rotation speed is less than a second rotation speed. The first rotation speed is the rotation speed of the first motor corresponding to that of a rotating shaft of the third motor. The second rotation speed is the rotation speed of the second motor corresponding to that of a rotating shaft of the third motor. When the third motor is connected to the first motor, the motor command determining unit determines a command torque for the first motor and the third motor so that the command torque for the third motor is no more than the command torque for the first motor.

公开(公告)号：US09695570B2

公开(公告)日：2017-07-04

申请号：US14754151

申请日：2015-06-29

申请人： Takeuchi Mfg. Co., Ltd.

发明人： Shusaku Ito

IPC分类号： E02F3/42 ,  E02F3/34

CPC分类号： E02F3/422 ,  E02F3/34 ,  E02F3/3414

摘要： In a state in which an arm 21 is oscillated to a lowest position, each control link 22 is arranged to be horizontally extended backward where the control link 22 is pivotally connected to a point A, and is pivotally connected to the arm 21 at a point D. An arm cylinder 23 is arranged to be vertically extended upward where the arm cylinder 23 is pivotally connected to a point B, and is pivotally connected to the arm 21 at a point E. The lift link 24 is arranged to be vertically extended upward where the lift link 24 is pivotally connected to a point C, and is pivotally connected to the arm 21 at a point F. The points E and F are located above the point D.

公开(公告)号：US09567729B2

公开(公告)日：2017-02-14

申请号：US14862441

申请日：2015-09-23

申请人： KUBOTA CORPORATION

发明人： Ryohei Sumiyoshi ,  Hideo Imai ,  Noriyoshi Kubo ,  Hiroyuki Anami ,  Hiroyuki Hata ,  Toyoaki Yasuda ,  Masahiro Kuroda ,  Kohei Higashiyama ,  Yuji Yamashita ,  Satoshi Tajima ,  Shunichiro Mori ,  Hayato Ido ,  Toshihiko Takemura ,  Shinsuke Hisatake ,  Hajime Tamaki ,  Hiroshi Koyamatsu

IPC分类号： B60K1/00 ,  E02F9/08 ,  E02F3/34 ,  E02F9/16 ,  B60K17/00 ,  B60K5/00 ,  B60K5/02 ,  B60K5/12

CPC分类号： E02F9/0866 ,  B60K5/00 ,  B60K5/02 ,  B60K5/1208 ,  B60K5/1216 ,  B60K17/00 ,  B60R13/0838 ,  B60Y2200/415 ,  B62D33/063 ,  E02F3/3414 ,  E02F3/422 ,  E02F9/02 ,  E02F9/0808 ,  E02F9/0883 ,  E02F9/0891 ,  E02F9/16 ,  E02F9/166

摘要： The present invention intends to allow a good layout of and an easy maintenance of parts disposed around a rear portion of the motor. A working machine includes a machine body; a motor mounted on the machine body; an output shaft protruding from a rear portion of the motor; a rear attachment portion disposed on the rear portion of the motor, the rear attachment portion facing backward; and a mount member configured to support the motor to suppress vibration of the motor, the mount member including: a first support member having an opposite attachment portion, the opposite attachment portion being attached opposite to the rear attachment portion; an elastic member attached to the first support member; and a second support member disposed on the machine body, the second support member being configured to support the elastic member.

摘要翻译： 本发明旨在允许布置在电动机的后部周围的部件的良好布置和易于维护。 工作机器包括机体; 安装在机体上的电机; 从马达的后部突出的输出轴; 设置在电动机的后部的后部附接部，后部安装部朝向后方; 以及安装构件，其构造成支撑所述电动机以抑制所述电动机的振动，所述安装构件包括：具有相对的安装部的第一支撑构件，所述相对的安装部分与所述后部附接部分相对地安装。 附接到所述第一支撑构件的弹性构件; 以及设置在所述机体上的第二支撑构件，所述第二支撑构件构造成支撑所述弹性构件。

公开(公告)号：US20170009424A1

公开(公告)日：2017-01-12

申请号：US15120559

申请日：2015-04-14

申请人： HITACHI CONSTRUCTION MA CHINERY CO., LTD.

发明人： Hidekazu MORIKI ,  Shinya IMURA ,  Kouji ISHIKAWA ,  Ryohei YAMASHITA

IPC分类号： E02F3/42 ,  F15B13/06 ,  E02F9/22 ,  F15B11/17

CPC分类号： E02F3/422 ,  E02F3/425 ,  E02F9/2221 ,  E02F9/2235 ,  E02F9/2242 ,  E02F9/2282 ,  E02F9/2285 ,  E02F9/2292 ,  E02F9/2296 ,  F15B11/17 ,  F15B13/06 ,  F15B2211/20576 ,  F15B2211/255 ,  F15B2211/265 ,  F15B2211/3059 ,  F15B2211/30595 ,  F15B2211/6652 ,  F15B2211/6654 ,  F15B2211/7051 ,  F15B2211/7135 ,  F15B2211/7142

摘要： An object of the present invention is to provide a hydraulic control system for a work machine that is capable of reducing the loss caused by flow division while reducing a decrease in the speed of a hydraulic actuator due to a combined operation. The hydraulic control system for a work machine includes a first hydraulic actuator, one hydraulic pump, a second hydraulic actuator, and another hydraulic pump. The hydraulic control system further includes operating instruction detection means and pump flow control means. The operating instruction detection means detects that operating instructions are issued to the first hydraulic actuator and the second hydraulic actuator. The pump flow control means individually adjusts the delivery flow rate of the one hydraulic pump and the another hydraulic pump in accordance with operation amounts designated by the operating instructions for the first and second hydraulic actuators. When the first and second hydraulic actuators are simultaneously operated, the pump flow control means increases the delivery flow rate of the one hydraulic pump to a higher rate than when the first hydraulic actuator is operated and the second hydraulic actuator is not operated.

摘要翻译： 本发明的目的是提供一种用于作业机械的液压控制系统，其能够减少由于分流而引起的损失，同时减少了由于组合操作导致的液压致动器的速度的降低。 用于作业机械的液压控制系统包括第一液压致动器，一个液压泵，第二液压致动器和另一个液压泵。 液压控制系统还包括操作指令检测装置和泵流量控制装置。 操作指示检测装置检测到向第一液压致动器和第二液压致动器发出操作指令。 泵流量控制装置根据由第一和第二液压致动器的操作说明书指定的操作量单独地调节一个液压泵和另一个液压泵的输送流量。 当第一和第二液压致动器同时操作时，泵流量控制装置将一个液压泵的输送流量增加到比第一液压致动器被操作并且第二液压致动器不被操作时更高的速率。

公开(公告)号：US09534682B2

公开(公告)日：2017-01-03

申请号：US14687325

申请日：2015-04-15

申请人： Harnischfeger Technologies, Inc.

发明人： Richard Fischer ,  Nicholas Dame

IPC分类号： F16H57/027 ,  E02F3/42 ,  E02F9/14 ,  E02F9/20 ,  E02F3/30 ,  E21C27/30 ,  F16H57/02

CPC分类号： F16H57/027 ,  E02F3/304 ,  E02F3/422 ,  E02F9/14 ,  E02F9/2016 ,  E21C27/30 ,  F16H2057/02034 ,  F16H2057/02082

摘要： A mining shovel includes a boom and a transmission unit coupled to the boom. The transmission unit includes an outer housing, an internal motor housing disposed within the outer housing, and a venting system coupled to the outer housing to direct air through both the outer housing and the internal motor housing.

摘要翻译： 采矿铲包括吊杆和联接到吊杆的传动单元。 传动单元包括外壳体，设置在外壳体内的内部马达壳体，以及联接到外壳体的排气系统，以引导空气通过外壳体和内部马达壳体。

公开(公告)号：US09429174B1

公开(公告)日：2016-08-30

申请号：US14215974

申请日：2014-03-17

申请人： Scott N. Schuh ,  Joseph A. St. Aubin ,  William B. Coykendall

发明人： Scott N. Schuh ,  Joseph A. St. Aubin ,  William B. Coykendall

IPC分类号： F15B13/04 ,  F15B11/00 ,  E02F3/42 ,  E02F9/22

CPC分类号： F15B11/003 ,  E02F3/422 ,  E02F9/2203 ,  F15B13/01 ,  F15B13/07 ,  F15B2211/30515 ,  F15B2211/3116 ,  F15B2211/3127 ,  F15B2211/40507 ,  F15B2211/41527 ,  F15B2211/46 ,  F15B2211/7741

摘要： Disclosed is a power conversion system for controlling the flow of a hydraulic power signal between a power source and a hydraulic actuator having first and second ports. The power conversion system includes a control valve that is configured to selectively expose each of the first and second ports to one of the power source and a low pressure reservoir. An enabling valve having a disabled position, a first enabled position, and a second enabled position receives an input from the control valve and provides an output to the hydraulic actuator.

摘要翻译： 公开了一种电力转换系统，用于控制电源和具有第一和第二端口的液压致动器之间的液压功率信号的流动。 功率转换系统包括控制阀，其被配置为选择性地将第一和第二端口中的每一个暴露于电源和低压储存器中的一个。 具有禁用位置的启动阀，第一使能位置和第二使能位置接收来自控制阀的输入并向液压致动器提供输出。

公开(公告)号：US20160222990A1

公开(公告)日：2016-08-04

申请号：US14917682

申请日：2014-10-07

申请人： KAWASAKI JUKOGYO KABUSHIKI KAISHA

发明人： Akihiro KONDO ,  Takuya FUKUMOTO ,  Hideyasu MURAOKA

IPC分类号： F15B11/16 ,  E02F3/42 ,  E02F3/28 ,  F15B11/17 ,  E02F9/22

CPC分类号： F15B11/165 ,  E02F3/28 ,  E02F3/422 ,  E02F3/425 ,  E02F9/123 ,  E02F9/2235 ,  E02F9/2267 ,  E02F9/2282 ,  E02F9/2292 ,  E02F9/2296 ,  F15B11/17 ,  F15B2211/20523 ,  F15B2211/20546 ,  F15B2211/20553 ,  F15B2211/20576 ,  F15B2211/45 ,  F15B2211/6316 ,  F15B2211/6346 ,  F15B2211/6652

摘要： In a hydraulic drive system, first and second multi-control valves are connected to first and second hydraulic pumps. A first regulator adjusts a tilting angle of the first hydraulic pump in a manner to decrease a discharge flow rate of the first hydraulic pump in accordance with an increase in a discharge pressure of the first hydraulic pump and an increase in a first power shift pressure. A second regulator adjusts a tilting angle of the second hydraulic pump in a manner to decrease a discharge flow rate of the second hydraulic pump in accordance with an increase in a discharge pressure of the second hydraulic pump and an increase in a second power shift pressure. The first power shift pressure is set by a first proportional valve, and the second power shift pressure is set by a second proportional valve.

摘要翻译： 在液压驱动系统中，第一和第二多重控制阀连接到第一和第二液压泵。 第一调节器以根据第一液压泵的排出压力的增加和第一动力换档压力的增加来降低第一液压泵的排出流量的方式来调节第一液压泵的倾斜角度。 第二调节器以根据第二液压泵的排出压力的增加和第二动力换档压力的增加来降低第二液压泵的排出流量的方式来调节第二液压泵的倾斜角度。 第一动力换档压力由第一比例阀设定，第二动力换档压力由第二比例阀设定。