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    Load controller for hydrostatic transmission in work vehicles
    1.
    发明申请
    Load controller for hydrostatic transmission in work vehicles 失效
    工作车辆静液压传动负载控制器

    公开(公告)号：US20060254268A1

    公开(公告)日：2006-11-16

    申请号：US10553099

    申请日：2004-04-14

    申请人： Toshifumi Yasuda ,  Shinegori Sakikawa ,  Kazuhiko Ohtsuki

    发明人： Toshifumi Yasuda ,  Shinegori Sakikawa ,  Kazuhiko Ohtsuki

    IPC分类号： F16D31/02

    CPC分类号： F16H61/465 ,  F16H47/02 ,  F16H59/14 ,  F16H59/42 ,  F16H61/40 ,  F16H61/4035 ,  F16H61/4052

    摘要： The present invention provides a load controller for use in a hydrostatic transmission for a work vehicle that is free from control failure caused by deterioration of the constituent components, and that can be miniaturized and simplified in structure compared to conventional load controllers. In the work vehicle, power supplied from an engine (E) is branched to drive an implement system and a traveling system. A hydrostatic transmission (1) is provided in the traveling system. The hydrostatic transmission (1) connects, in an oil-hydraulic closed circuit, an oil-hydraulic pump (2) driven by the engine (E) and an oil-hydraulic motor (4) driven by the oil-hydraulic pump (2). The load controller is provided with a bypass oil line for bypassing an oil line that has high pressure during forward movement (3a) in the oil-hydraulic closed circuit to reach an oil line that has low pressure during forward movement (3b) or an oil tank (T); a first opening/closing valve for opening or closing the bypass oil line (8); and an opening/closing valve (9) controller that detects a load applied to the engine (E) while traveling during working and opens the first opening/closing valve (9) when the load exceeds a predetermined level.

    摘要翻译： 本发明提供了一种用于工作车辆的静液压变速器的负载控制器，其与组成部件的劣化无关的控制故障，并且与传统的负载控制器相比可以小型化和简化结构。 在工作车辆中，从发动机（E）供给的动力被分支以驱动车辆系统和行驶系统。 在行驶系统中设置静液压传动装置（1）。 液压传动装置（1）在油压闭路中连接由发动机（E）驱动的油压泵（2）和由油压泵（2）驱动的油压马达（4） 。 负载控制器设置有旁路油管线，用于绕过在油压闭合回路中向前运动（3a）期间具有高压力的油管线，以到达在向前运动（3b）期间具有低压的油管线 油箱（T）; 用于打开或关闭旁路油管线（8）的第一打开/关闭阀; 以及打开/关闭阀（9）控制器，其在工作期间行进时检测施加到发动机（E）的负荷，并且当负载超过预定水平时打开第一开/关阀（9）。

    Load controller for hydrostatic transmission in work vehicles
    2.
    发明授权
    Load controller for hydrostatic transmission in work vehicles 失效
    工作车辆静液压传动负载控制器

    公开(公告)号：US07320217B2

    公开(公告)日：2008-01-22

    申请号：US10553099

    申请日：2004-04-14

    申请人： Toshifumi Yasuda ,  Shigenori Sakikawa ,  Kazuhiko Ohtsuki

    发明人： Toshifumi Yasuda ,  Shigenori Sakikawa ,  Kazuhiko Ohtsuki

    IPC分类号： F16D31/02

    CPC分类号： F16H61/465 ,  F16H47/02 ,  F16H59/14 ,  F16H59/42 ,  F16H61/40 ,  F16H61/4035 ,  F16H61/4052

    摘要： Disclosed is a load controller for use in a hydrostatic transmission for a work vehicle. Power supplied from an engine is branched to drive an implement system and a traveling system. The hydrostatic transmission connects, in an oil-hydraulic closed circuit, an oil-hydraulic pump driven by the engine and an oil-hydraulic motor driven by the oil-hydraulic pump. The load controller includes a bypass oil line for bypassing an oil line that has high pressure during forward movement in the oil-hydraulic closed circuit to reach an oil line that has low pressure during forward movement or an oil tank; a first opening/closing valve for opening or closing the bypass oil line; and an opening/closing valve controller that detects a load applied to the engine while traveling during working and opens the first opening/closing valve when the load exceeds a predetermined level.

    摘要翻译： 公开了一种用于工作车辆的静液压传动的负载控制器。 从发动机供应的动力被分配以驱动车辆系统和行驶系统。 液压传动装置在油压闭路中连接由发动机驱动的油压泵和由油压泵驱动的油压马达。 负载控制器包括旁路油路，用于旁路油路，其在油压闭合回路中向前运动期间具有高压，以到达在向前运动期间具有低压的油管线或油箱; 用于打开或关闭旁路油路的第一打开/关闭阀; 以及打开/关闭阀控制器，其检测在工作期间行驶期间施加到发动机的负载，并且当负载超过预定水平时打开第一开/关阀。

    Hydraulic Motor Unit and Hydraulic Four-Wheel-Drive Working Vehicle
    3.
    发明申请
    Hydraulic Motor Unit and Hydraulic Four-Wheel-Drive Working Vehicle 有权
    液压马达单元和液压四驱驱动工作车

    公开(公告)号：US20110139532A1

    公开(公告)日：2011-06-16

    申请号：US12948466

    申请日：2010-11-17

    申请人： Kenta SASHIKUMA ,  Toshifumi Yasuda

    发明人： Kenta SASHIKUMA ,  Toshifumi Yasuda

    IPC分类号： B60K17/356 ,  F04B49/00

    CPC分类号： B60K17/356 ,  B60Y2200/223 ,  F16H61/425 ,  F16H61/456

    摘要： A hydraulic motor unit according to the present invention includes an electric motor having an electric motor main body that is electrically controlled, an electric motor case that accommodates the electric motor main body and an electric motor main body output shaft that is rotated around an axis line thereof by the electric motor main body, the electric motor case being detachably mounted to the motor housing, wherein mounting of the electric motor to the motor housing causes the electric motor main body output shaft to be operatively connected to the first end of the control shaft so that the control shaft is rotated around the axis line in accordance with rotation of the electric motor main body output shaft.

    摘要翻译： 根据本发明的液压马达单元包括具有电控电动机主体的电动机，容纳电动机主体的电动机壳体和围绕轴线旋转的电动机主体输出轴 电动机壳体可拆卸地安装在电动机壳体上，其中将电动机安装到电动机壳体上使得电动机主体输出轴可操作地连接到控制轴的第一端 使得控制轴根据电动机主体输出轴的旋转而围绕轴线旋转。

    Vehicle Transaxle System
    5.
    发明申请
    Vehicle Transaxle System 有权
    车辆传动桥系统

    公开(公告)号：US20090301076A1

    公开(公告)日：2009-12-10

    申请号：US12477428

    申请日：2009-06-03

    申请人： Toshifumi Yasuda ,  Masaru Iida ,  Hideki Kanenobu

    发明人： Toshifumi Yasuda ,  Masaru Iida ,  Hideki Kanenobu

    IPC分类号： F16D31/02

    CPC分类号： B60K17/105 ,  A01D34/69 ,  B60K17/28 ,  B60Y2200/223 ,  F16H61/427

    摘要： A vehicle transaxle system includes a pair of right and left transaxle units equipped on a vehicle. The right transaxle unit supports a single right axle, and the left transaxle unit supports a single left axle. A variable displacement hydraulic pump is disposed in each of the right and left transaxle units so as to be driven by power from a prime mover of the vehicle. A variable displacement hydraulic motor is disposed in each of the right and left transaxle units and is fluidly connected to the corresponding hydraulic pump so as to drive the corresponding right or left axle. A movable motor displacement control member is provided in each of the transaxle unit so as to be moved to change the displacement of the corresponding hydraulic motor. An interlocking connection means is connected to both the movable motor displacement control members of the respective hydraulic motors. The vehicle is provided with a first manipulator for changing displacements of the hydraulic pumps, and is provided with a second manipulator for operating the interlocking connection means. The interlocking connection means is operated by operating the second manipulator so as to synchronously move both the movable motor displacement control members.

    摘要翻译： 车辆驱动桥系统包括配备在车辆上的一对右和右驱动桥。 右驱动桥单元支撑单个右轴，左驱动桥单元支撑单个左轴。 可变排量液压泵设置在右驱动桥和左驱动桥单元中的每一个中，以便由来自车辆原动机的动力驱动。 可变排量液压马达设置在右驱动桥和左驱动桥单元中的每一个中，并且流体地连接到相应的液压泵，以驱动相应的右轴或左轴。 可移动电动机位移控制构件设置在每个驱动桥单元中以便移动以改变相应的液压马达的位移。 互锁连接装置连接到各个液压马达的可动马达位移控制构件。 车辆设置有用于改变液压泵的位移的第一操纵器，并且设置有用于操作互锁连接装置的第二操纵器。 通过操作第二操纵器来操作联锁连接装置，以便同时移动可动电动机位移控制构件。

    Hydraulic motor unit and hydraulic four-wheel-drive working vehicle
    7.
    发明授权
    Hydraulic motor unit and hydraulic four-wheel-drive working vehicle 有权

    公开(公告)号：US08517138B2

    公开(公告)日：2013-08-27

    申请号：US12948466

    申请日：2010-11-17

    申请人： Kenta Sashikuma ,  Toshifumi Yasuda

    发明人： Kenta Sashikuma ,  Toshifumi Yasuda

    IPC分类号： B60K17/356

    CPC分类号： B60K17/356 ,  B60Y2200/223 ,  F16H61/425 ,  F16H61/456

    摘要： A hydraulic motor unit according to the present invention includes an electric motor having an electric motor main body that is electrically controlled, an electric motor case that accommodates the electric motor main body and an electric motor main body output shaft that is rotated around an axis line thereof by the electric motor main body, the electric motor case being detachably mounted to the motor housing, wherein mounting of the electric motor to the motor housing causes the electric motor main body output shaft to be operatively connected to the first end of the control shaft so that the control shaft is rotated around the axis line in accordance with rotation of the electric motor main body output shaft.

    Hydraulic drive working vehicle
    9.
    发明授权
    Hydraulic drive working vehicle 有权
    液压驱动作业车

    公开(公告)号：US08002073B2

    公开(公告)日：2011-08-23

    申请号：US12350695

    申请日：2009-01-08

    申请人： Takeaki Nozaki ,  Masahisa Kawamura ,  Toshifumi Yasuda

    发明人： Takeaki Nozaki ,  Masahisa Kawamura ,  Toshifumi Yasuda

    IPC分类号： B60K17/00

    CPC分类号： B60K17/356 ,  B60K17/105 ,  B60Y2200/223 ,  F16H61/4043 ,  F16H61/421 ,  F16H61/431 ,  F16H61/444

    摘要： A hydraulic drive vehicle includes a bypass valve for fluidly connecting or disconnecting a pump/second-motor line and a second-motor/first-motor line, and set a capacity of a first hydraulic motor to a standard capacity which makes a peripheral speed of a first wheel driven by the first hydraulic motor equal to a peripheral speed of a second wheel driven by a second hydraulic motor when the bypass valve fluidly disconnects the two lines and set the capacity of the first hydraulic motor to a first capacity smaller than the standard capacity when the bypass valve fluidly connects the two lines. The present invention makes it possible to widen a variable range in which a traveling speed of the vehicle could be changed.

    摘要翻译： 液压驱动车辆包括用于流体连接或断开泵/第二电动机线路和第二电动机/第一电动机线路的旁通阀，并且将第一液压马达的容量设定为标准容量，其使得圆周速度 第一液压马达驱动的第一轮等于由第二液压马达驱动的第二轮的圆周速度，当旁通阀流体地断开两条线并将第一液压马达的容量设定为小于标准的第一容量时 旁通阀流体连接两条线路时的容量。 本发明可以扩大可以改变车辆行驶速度的可变范围。

    Hydraulic Actuator Unit
    10.
    发明申请
    Hydraulic Actuator Unit 有权
    液压执行机构

    公开(公告)号：US20110088545A1

    公开(公告)日：2011-04-21

    申请号：US12732837

    申请日：2010-03-26

    申请人： Kengo Sasahara ,  Toshifumi Yasuda ,  Minoru Kamada ,  Masaaki Inoue ,  Takashi Nishizawa ,  Fumitoshi Ishino ,  Masaya Itou ,  Shinichi Hirose ,  Jun Matsuura ,  Ryota Iwaibara

    发明人： Kengo Sasahara ,  Toshifumi Yasuda ,  Minoru Kamada ,  Masaaki Inoue ,  Takashi Nishizawa ,  Fumitoshi Ishino ,  Masaya Itou ,  Shinichi Hirose ,  Jun Matsuura ,  Ryota Iwaibara

    IPC分类号： F04B1/32 ,  F01B3/02

    CPC分类号： F04B1/20 ,  B60Y2200/223 ,  F04B1/295 ,  F04B1/324 ,  F04B53/22 ,  F16H61/435

    摘要： In the hydraulic actuator unit according to the present invention, a first electric motor assembly formed by mounting one of a pair of electric motors to one of a pair of electric motor covers is detachably mounted to a pump case so as to rotate a first control shaft around its axis line, and a second electric motor assembly formed by mounting the other one of the pair of electric motors to the other one of the pair of electric motor covers is detachably mounted to the pump case so as to rotate a second control shaft around its axis line. The first electric motor assembly is mounted to the pump case so that the corresponding electric motor has a rotational axis line in parallel with the first pump shaft in a state where the electric motor is positioned on an opposite side to the second control shaft with respect to the first control shaft and is also positioned on an opposite side to a first end of a first pump shaft with respect to a virtual plane that passes through the axis lines of the first and second control shafts. The second electric motor assembly is mounted to the pump case at a posture obtained by rotating the first electric motor assembly by 180 degrees about a virtual center line that is disposed in parallel with the first and second control shafts and is located at a center between the first and second control shafts, thereby the electric motor is positioned on an opposite side to a cooling fan, which is driven by the second end of the second pump shaft, with respect to the virtual plane.

    摘要翻译： 在根据本发明的液压致动器单元中，通过将一对电动机中的一个安装到一对电动机盖中的一个而形成的第一电动机组件可拆卸地安装到泵壳体上，以使第一控制轴 围绕其轴线，并且通过将一对电动机中的另一个安装到一对电动机盖中的另一个而形成的第二电动机组件可拆卸地安装到泵壳体上，以使第二控制轴旋转 其轴线。 第一电动机组件安装到泵壳体，使得相应的电动机在电动机相对于第二控制轴的相对侧相对于第二控制轴定位的状态下具有与第一泵轴平行的旋转轴线 第一控制轴并且相对于穿过第一和第二控制轴的轴线的虚拟平面也位于与第一泵轴的第一端相反的一侧。 第二电动机组件以通过使第一电动机组件围绕与第一和第二控制轴平行设置的虚拟中心线旋转180度而获得的姿态安装到泵壳体，并且位于第二电动机组件之间的中心 第一和第二控制轴，由此电动机相对于虚拟平面位于与由第二泵轴的第二端驱动的冷却风扇的相反侧。