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公开(公告)号：US07320217B2
公开(公告)日：2008-01-22
申请号：US10553099
申请日：2004-04-14
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。
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公开(公告)号：US20060042843A1
公开(公告)日：2006-03-02
申请号：US11190880
申请日：2005-07-28
IPC分类号： B60K1/00
CPC分类号： A01D69/002 , B60K17/28 , B60K25/06 , B60Y2200/223 , Y10T74/19149
摘要： There is provided a pump system including a housing capable of reserving oil in an internal space; an input shaft supported by the housing so as to be operatively connected to a driving source; a pump shaft supported by the housing; a hydraulic pump body which is accommodated in the housing and is driven by the pump shaft; a PTO shaft supported by the housing; a power transmission gear train which transmits a power from the input shaft to the pump shaft and the PTO shaft, and is accommodated in the housing; and a PTO clutch mechanism accommodated in the housing so as to be positioned in a power transmission path from the input shaft to the PTO shaft. The power transmission gear train has at least two first and second transmission gears meshed with each other. The housing has a narrow gear accommodating space surrounding a region including a mesh point between the first and second transmission gears, a PTO clutch accommodating space which surrounds the PTO clutch mechanism and which is fluidly communicated with the gear accommodating space, and a pair of first and second suction/discharge ports which communicate the internal space of the housing with an outside of the housing. The first suction/discharge port is arranged within the gear accommodating space so as to be positioned in an opposite side to the PTO clutch accommodating space with the mesh point between the first and second transmission gears interposed therebetween.
摘要翻译： 提供一种泵系统，其包括能够在内部空间中储存油的壳体; 由所述壳体支撑以便可操作地连接到驱动源的输入轴; 由所述壳体支撑的泵轴; 液压泵体，容纳在壳体中并由泵轴驱动; 由壳体支撑的PTO轴; 传动齿轮系，其将来自输入轴的动力传递到泵轴和PTO轴，并且容纳在壳体中; 以及容纳在所述壳体中的PTO离合器机构，以便定位在从所述输入轴到所述PTO轴的动力传递路径中。 动力传动齿轮系具有彼此啮合的至少两个第一和第二传动齿轮。 壳体具有围绕包括第一和第二传动齿轮之间的网点的区域的窄齿轮容纳空间，围绕PTO离合器机构并与齿轮容纳空间流体连通的PTO离合器容纳空间，以及一对第一 以及将壳体的内部空间与壳体的外部连通的第二吸入/排出口。 第一吸入口和第二传动齿轮之间的网点位于齿轮容纳空间内，以便位于与PTO离合器容纳空间相反的一侧。
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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。
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公开(公告)号：US20090266071A1
公开(公告)日：2009-10-29
申请号：US12430566
申请日：2009-04-27
IPC分类号： F16H39/00
CPC分类号： B60K17/356 , B60K17/105
摘要： A hydraulic four-wheel-drive working vehicle includes a front/rear differential-lock switch valve. The front/rear differential-lock switch valve fluidly connects forward-movement high-pressure lines of the pair of main operation fluid lines, which are fluidly connected to a main hydraulic motor, and the pair of sub operation fluid lines, which are fluidly connected to a sub hydraulic motor, and also fluidly connects the forward-movement low-pressure lines of the pair of main operation fluid lines and the pair of sub operation fluid lines. The front/rear differential-lock switch valve is capable of taking a throttling fluid-connection state of fluidly connecting the corresponding lines in a state where a throttle is interposed therebetween and a full fluid-connection state of fluidly connecting the corresponding lines in a state where the throttle is not interposed therebetween.
摘要翻译： 液压四轮驱动作业车辆包括前/后差速器锁定开关阀。 前/后差速锁定开关阀将流体连接到主液压马达的一对主操作流体管线的前进高压管路和流体连接的一对副操作流体管线流体连接 并且还将一对主操作流体管线和一对副操作流体管线的前进低压管线流体连接。 前/后差速锁定开关阀能够在其间插入节气门的状态下采取流体连接相应线路的节流流体连接状态，并且在状态下流体连接相应线路的完全流体连接状态 其中节流阀不在其间插入。
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公开(公告)号：US09211793B2
公开(公告)日：2015-12-15
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： B60K17/28 , B60K17/10 , A01D34/69 , F16H61/427
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。
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公开(公告)号：US20090260911A1
公开(公告)日：2009-10-22
申请号：US12350695
申请日：2009-01-08
IPC分类号： B60K8/00
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。
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公开(公告)号：US20090211834A1
公开(公告)日：2009-08-27
申请号：US12388115
申请日：2009-02-18
CPC分类号： B60K17/105 , B60K17/356 , B60Y2200/223 , F16H61/423 , F16H61/456
摘要： A hydraulic four-wheel-drive working vehicle includes a hydraulic pump unit having a hydraulic pump main body of a variable displacement type, a pair of left and right first motor devices driving a left and right first driving wheels, and a pair of left and right second motor devices driving a left and right second driving wheels, wherein each of the pair of first motor devices and the pair of second motor devices includes a hydraulic motor main body forming an HST in cooperation with the hydraulic pump main body, a motor volume adjusting mechanism, and a hydraulic actuating mechanism that operates the motor volume adjusting mechanism, and the hydraulic actuating mechanisms in the pair of first motor devices and the pair of second motor devices are operated and controlled with use of hydraulic fluid from a single hydraulic pressure source.
摘要翻译： 液压四轮驱动作业车辆包括具有可变排量型液压泵主体的液压泵单元，驱动左右第一驱动轮的一对左右第一马达装置，以及左右一对驱动轮 驱动左右第二驱动轮的右第二马达装置，其中，所述一对第一马达装置和所述一对第二马达装置中的每一个包括与所述液压泵主体协作地形成HST的液压马达主体，马达容积 调节机构和操作电动机容积调节机构的液压致动机构，并且使用来自单个液压源的液压流体来操作和控制该对第一电动机装置和一对第二电动机装置中的液压致动机构 。
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公开(公告)号：US20080314675A1
公开(公告)日：2008-12-25
申请号：US12142400
申请日：2008-06-19
申请人： Takeaki NOZAKI , Toshifumi Yasuda
发明人： Takeaki NOZAKI , Toshifumi Yasuda
IPC分类号： B60K8/00
CPC分类号： B60K17/10 , B60K7/0015 , B60K23/0808 , B60Y2200/223 , F16H61/456
摘要： A hydraulic wheel-drive working vehicle according to the present invention makes it possible to change a driving state by a driving-mode switching valve between a right-left differential-lock driving state in which a pair of driving wheels are driven in an independent manner to each other with hydraulic fluid discharged from a hydraulic pump and having respective amounts defined by a flow dividing/combining mechanism and a right-left differential driving state in which the pair of left and right driving wheels are driven in a hydraulically differential manner to each other, and also to supply the hydraulic fluid from the hydraulic pump to the pair of hydraulic motors without being subjected to fluid load of the flow dividing/combining mechanism at the right-left differential driving state, thereby enhancing transmission efficiency at the right-left differential driving state.
摘要翻译： 根据本发明的液压轮驱动作业车辆使得可以通过驱动模式切换阀在独立地驱动一对驱动轮的左右差速锁驱动状态之间改变驱动状态 由液压泵排出的液压流体彼此分开，并且具有由分流/合并机构和左右差速驱动状态限定的相应量，其中左右驱动轮以液压方式被驱动到每个 并且还将液压泵从液压泵供给到一对液压马达，而不会在左右差速驱动状态下受到分流/组合机构的流体负载的影响，从而提高左右差速驱动状态下的传动效率 差速驱动状态。
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公开(公告)号：US07407030B2
公开(公告)日：2008-08-05
申请号：US11190880
申请日：2005-07-28
IPC分类号： B60K17/10
CPC分类号： A01D69/002 , B60K17/28 , B60K25/06 , B60Y2200/223 , Y10T74/19149
摘要： A pump system includes a housing, an input shaft, a pump shaft; a hydraulic pump body, a PTO shaft, a power transmission gear train, and a PTO clutch mechanism. The housing has a narrow gear accommodating space surrounding a region including a mesh point between the first and second transmission gears of the power transmission gear train, a PTO clutch accommodating space which surrounds the PTO clutch mechanism and which is fluidly communicated with the gear accommodating space, and a pair of first and second suction/discharge ports which communicate the internal space of the housing with an outside of the housing. The first suction/discharge port is arranged within the gear accommodating space so as to be positioned in an opposite side to the PTO clutch accommodating space with the mesh point between the first and second transmission gears interposed therebetween.
摘要翻译： 泵系统包括壳体，输入轴，泵轴; 液压泵体，PTO轴，动力传递齿轮系和PTO离合器机构。 壳体具有围绕包括动力传递齿轮系的第一和第二传动齿轮之间的网点的区域的窄齿轮容纳空间，围绕PTO离合器机构的PTO离合器容纳空间，并且与齿轮容纳空间流体连通 以及将壳体的内部空间与壳体的外部连通的一对第一和第二吸入/排出口。 第一吸入口和第二传动齿轮之间的网点位于齿轮容纳空间内，以便位于与PTO离合器容纳空间相反的一侧。
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公开(公告)号：US20070028610A1
公开(公告)日：2007-02-08
申请号：US11498093
申请日：2006-08-03
申请人： Toshifumi Yasuda , Koji Kiyooka
发明人： Toshifumi Yasuda , Koji Kiyooka
IPC分类号： F16D31/02
CPC分类号： F16H61/40 , F04B1/2021 , F04B1/2042 , F04B1/2064 , F04B23/106 , F16H39/14 , F16H61/4043 , F16H61/4139 , F16H61/4165
摘要： There is provided a there is provided a working vehicle including: a hydraulic pump unit including a hydraulic pump main body operatively driven by a driving power source, and a pump case accommodating the hydraulic pump main body and having an inner space capable of storing oil; a hydraulic motor unit spaced apart from the hydraulic pump unit so as to operatively drive a corresponding driving wheel, the hydraulic motor unit including a hydraulic motor main body fluidly connected to the hydraulic pump main body so as to form an HST in cooperation with the hydraulic pump main body, and a motor case accommodating the hydraulic motor main body and having an inner space capable of storing oil; an auxiliary pump unit including an auxiliary pump main body operatively driven by the driving power source; a circulation line for fluidly connecting the auxiliary pump main body, the pump case and the motor case so that at least a part of oil, which has been discharged from the auxiliary pump main body, returns to a suction side of the auxiliary pump main body through the inner spaces of the pump case and the motor case; and an oil cooler interposed in the circulation line so as to be positioned. between the auxiliary pump main body and the pump case or the motor case.
摘要翻译： 提供一种工作车辆，包括：液压泵单元，包括由驱动动力源可操作地驱动的液压泵主体和容纳液压泵主体并具有能够储存油的内部空间的泵壳; 液压马达单元，其与所述液压泵单元间隔开，以便可操作地驱动相应的驱动轮，所述液压马达单元包括液压马达主体，其与所述液压泵主体流体连接以便与所述液压马达主体相配合地形成HST 泵主体和容纳液压马达主体并具有能够储存油的内部空间的马达壳体; 辅助泵单元，包括由驱动电源可操作地驱动的辅助泵主体; 用于将辅助泵主体，泵壳体和电动机壳体流体连接的循环管线，使得已经从辅助泵主体排出的至少一部分油返回到辅助泵主体的吸入侧 通过泵壳和电机外壳的内部空间; 以及设置在循环线中以便定位的油冷却器。 在辅助泵主体和泵壳或电动机壳之间。
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