Vehicle improved in steering
    1.
    发明授权
    Vehicle improved in steering 失效
    车辆转向改善

    公开(公告)号:US07431123B2

    公开(公告)日:2008-10-07

    申请号:US11189993

    申请日:2005-07-27

    IPC分类号: B60K17/10

    摘要: A vehicle including an integral transaxle apparatus with axles, a driving hydrostatic transmission (HST), a steering HST, and a differential unit. Driving operating means for slanting operation of a first movable swash plate of the variable displacement driving hydraulic pump for switching the travelling direction between forward and backward and for changing the travelling speed, and steering operating means for slanting operation of a second movable swash plate of the variable displacement steering hydraulic pump so as to determine the leftward and rightward cornering angle are provided. The steering hydraulic motor has a third movable swash plate interlocking with the driving operating means so that the slanting direction of the third movable swash plate is changed according to the operation of the driving operating means, whereby the vehicle turns laterally in the same direction in response to the steering operating means whether the vehicle travels forward or backward.

    摘要翻译: 一种包括具有轴的整体式驱动桥装置,驱动静液压传动装置(HST),转向装置HST和差动装置的车辆。 用于使可变排量驱动液压泵的第一可动斜盘的倾斜操作的驱动操作装置,用于切换前后的行进方向和用于改变行驶速度;以及用于使第二可动斜盘的倾斜操作的转向操作装置 提供可变排量转向液压泵,以确定左右拐角。 转向液压马达具有与驱动操作装置互锁的第三可动斜盘,使得第三可动斜盘的倾斜方向根据驾驶操作装置的操作而改变,由此车辆在相同方向上横向转动 到转向操作装置是否车辆前进或后退。

    Vehicle improved in steering
    2.
    发明授权
    Vehicle improved in steering 失效
    车辆转向改善

    公开(公告)号:US06397966B1

    公开(公告)日:2002-06-04

    申请号:US09489680

    申请日:2000-01-24

    IPC分类号: B62D1100

    摘要: A vehicle is installed with an integral transaxle apparatus constructed so that a single housing contains left and right axles, a driving hydrostatic transmission (HST) having a variable displacement first hydraulic pump and a first hydraulic motor fluidly connected with each other, a steering HST having a variable displacement second hydraulic pump and a variable displacement second hydraulic motor fluidly connected with each other, and a differential unit differentially connecting the axles with each other so as to be driven regularly or reversely by the output of the driving HST and to differentially drive the axles while receiving the output of the steering HST, wherein the first hydraulic pump receives power of a prime mover and has a first movable swash plate, and the second hydraulic pump receives power of the prime mover independently of the first hydraulic pump and has a second movable swash plate. The vehicle is also provided with driving operating means for slanting operation of the first movable swash plate for switching the travelling direction between forward and backward and for changing the travelling speed, and steering operating means for slanting operation of the second movable swash plate so as to determine the leftward and rightward cornering angle. The second hydraulic motor has a third movable swash plate interlocking with the driving operating means so that the slanting direction of the third movable swash plate is changed oppositely with respect to its neutral position according to the travelling direction switching operation of the driving operating means, whereby the vehicle turns laterally in the same direction of leftward and rightward steering operation of the steering operating means whether the vehicle travels forward or backward.

    摘要翻译: 车辆安装有整体的驱动桥装置,其构造成使得单个壳体包含左轴和右轴,具有可变排量第一液压泵的驱动静液压变速器(HST)和彼此流体连接的第一液压马达,转向HST具有 相互流体连接的可变排量第二液压泵和可变排量第二液压马达,以及差动单元,其将轴彼此差分地连接,以便通过驱动HST的输出有规则地或相反地驱动,并差动驱动 同时接收转向HST的输出,其中第一液压泵接收原动机的动力并具有第一可动斜盘,并且第二液压泵独立于第一液压泵接收原动机的动力,并且具有第二 活动斜盘 车辆还设置有用于使第一可动斜盘倾斜操作的驱动操作装置,用于切换前后的行进方向和用于改变行驶速度;以及用于使第二可动斜盘的倾斜操作的转向操作装置,以便 确定左右拐角。 第二液压马达具有与驱动操作装置互锁的第三可动斜盘,使得根据驱动操作装置的行进方向切换操作,第三可动斜盘的倾斜方向相对于其中立位置相反地改变,由此 在车辆向前或向后行驶时,车辆在与转向操作装置的向左和向右转向操作相同的方向上横向转动。

    Vehicle improved steering
    3.
    发明授权
    Vehicle improved steering 失效
    车辆改善转向

    公开(公告)号:US06659216B2

    公开(公告)日:2003-12-09

    申请号:US10122396

    申请日:2002-04-16

    IPC分类号: B62D1100

    摘要: A vehicle including an integral transaxle apparatus with axles, a driving hydrostatic transmission (HST), a steering HST, and a differential unit. Driving operating means for slanting operation of a first movable swash plate of the variable displacement driving hydraulic pump for switching the travelling direction between forward and backward and for changing the travelling speed, and steering operating means for slanting operation of a second movable swash plate of the variable displacement steering hydraulic pump so as to determine the leftward and rightward cornering angle are provided. The steering hydraulic motor has a third movable swash plate interlocking with the driving operating means so that the slanting direction of the third movable swash plate is changed according to the operation of the driving operating means, whereby the vehicle turns laterally in the same direction in response to the steering operating means whether the vehicle travels forward or backward.

    摘要翻译: 一种包括具有轴的整体式驱动桥装置,驱动静液压传动装置(HST),转向装置HST和差动装置的车辆。 用于使可变排量驱动液压泵的第一可动斜盘的倾斜操作的驱动操作装置,用于切换前后的行进方向和用于改变行驶速度;以及用于使第二可动斜盘的倾斜操作的转向操作装置 提供可变排量转向液压泵,以确定左右拐角。 转向液压马达具有与驱动操作装置互锁的第三可动斜盘,使得第三可动斜盘的倾斜方向根据驾驶操作装置的操作而改变,由此车辆在相同方向上横向转动 到转向操作装置是否车辆前进或后退。

    Integral hydrostatic transaxle apparatus for driving and steering
    4.
    发明授权
    Integral hydrostatic transaxle apparatus for driving and steering 失效
    用于驾驶和转向的积分静液力驱动桥装置

    公开(公告)号:US06312354B1

    公开(公告)日:2001-11-06

    申请号:US09489678

    申请日:2000-01-24

    IPC分类号: B62D1106

    CPC分类号: B62D11/18

    摘要: A transaxle apparatus is constructed so that left and right axles, two hydrostatic transmissions (HSTs), one for driving a vehicle and the other for steering it, and a differential unit for differentially connecting said axles with each other are together contained in a housing. The driving HST is disposed so that its hydraulic pump and motor are aligned along either a left or right side of the housing. The steering HST is disposed so that its hydraulic pump and motor are aligned along either a front or rear side of the housing. The differential unit is laterally opposite to the driving HST. Either the left or right axle crosses the driving HST between its hydraulic pump and motor. The two HSTs are provided with one or two flat center sections disposed in the housing. The cylinder blocks of the hydraulic pumps and motors of the two HSTs are mounted on either a top or bottom surface of the center section or sections. Power transmission mechanisms for transmitting output power from the hydraulic motors of the two HSTs into the differential unit are disposed on an opposite side of the center section(s) as the cylinder blocks. A charge pump may be attached onto the center section, and a conduit for sending fluid discharged from the charged pump into one or both HSTs may be partly extended outside the housing so as to be cooled by the atmosphere.

    摘要翻译: 传动桥装置被构造成使得左右轴,两个静液压变速器(HST),一个用于驱动车辆,另一个用于转向它,以及用于将所述轴彼此差分连接的差动单元一起被包含在壳体中。 驱动HST被布置成使得其液压泵和马达沿壳体的左侧或右侧对准。 转向HST被布置成使得其液压泵和马达沿壳体的前侧或后侧对准。 差速单元与驱动HST横向相对。 左或右轴与其液压泵和电机之间的驱动HST交叉。 两个HST设置有设置在壳体中的一个或两个平的中心部分。 两个HST的液压泵和马达的气缸体安装在中心部分的顶部或底部表面上。 用于将两个HST的液压马达的输出功率传递到差速单元的动力传递机构设置在与气缸体一致的中心部分的相对侧上。 电荷泵可以附接到中心部分,并且用于将从充电的泵排出的流体的一个或两个HST的导管部分地延伸到壳体外部,以便被大气冷却。

    Vehicle improved in steering
    5.
    发明申请
    Vehicle improved in steering 失效
    车辆转向改善

    公开(公告)号:US20050257983A1

    公开(公告)日:2005-11-24

    申请号:US11189993

    申请日:2005-07-27

    摘要: A vehicle is installed with an integral transaxle apparatus constructed so that a single housing contains left and right axles, a driving hydrostatic transmission (HST) having a variable displacement first hydraulic pump and a first hydraulic motor fluidly connected with each other, a steering HST having a variable displacement second hydraulic pump and a variable displacement second hydraulic motor fluidly connected with each other, and a differential unit differentially connecting the axles with each other so as to be driven regularly or reversely by the output of the driving HST and to differentially drive the axles while receiving the output of the steering HST, wherein the first hydraulic pump receives power of a prime mover and has a first movable swash plate, and the second hydraulic pump receives power of the prime mover independently of the first hydraulic pump and has a second movable swash plate. The vehicle is also provided with driving operating means for slanting operation of the first movable swash plate for switching the travelling direction between forward and backward and for changing the travelling speed, and steering operating means for slanting operation of the second movable swash plate so as to determine the leftward and rightward cornering angle. The second hydraulic motor has a third movable swash plate interlocking with the driving operating means so that the slanting direction of the third movable swash plate is changed oppositely with respect to its neutral position according to the travelling direction switching operation of the driving operating means, whereby the vehicle turns laterally in the same direction of leftward and rightward steering operation of the steering operating means whether the vehicle travels forward or backward.

    摘要翻译: 车辆安装有整体的驱动桥装置,其构造成使得单个壳体包含左轴和右轴,具有可变排量第一液压泵的驱动静液压变速器(HST)和彼此流体连接的第一液压马达,转向HST具有 相互流体连接的可变排量第二液压泵和可变排量第二液压马达,以及差动单元,其将轴彼此差分地连接,以便通过驱动HST的输出有规则地或相反地驱动,并差动驱动 同时接收转向HST的输出,其中第一液压泵接收原动机的动力并具有第一可动斜盘,并且第二液压泵独立于第一液压泵接收原动机的动力,并且具有第二 活动斜盘 车辆还设置有用于使第一可动斜盘倾斜操作的驱动操作装置,用于切换前后的行进方向和用于改变行驶速度;以及用于使第二可动斜盘的倾斜操作的转向操作装置,以便 确定左右拐角。 第二液压马达具有与驱动操作装置互锁的第三可动斜盘,使得根据驱动操作装置的行进方向切换操作,第三可动斜盘的倾斜方向相对于其中立位置相反地改变,由此 在车辆向前或向后行驶时,车辆在与转向操作装置的向左和向右转向操作相同的方向上横向转动。

    Integral-type hydraulic and mechanical transaxle apparatus for driving and steering a vehicle
    6.
    发明授权
    Integral-type hydraulic and mechanical transaxle apparatus for driving and steering a vehicle 失效
    用于驾驶和转向车辆的整体式液压和机械变速驱动装置

    公开(公告)号:US06524205B1

    公开(公告)日:2003-02-25

    申请号:US09622414

    申请日:2000-08-16

    IPC分类号: B60K1710

    摘要: An integral-type transaxle apparatus comprising a single housing in which a pair of driving axles, a differential mechanism for differentially connecting both said driving axles to each other, a driving hydraulic stepless transmission which fluidly connects a hydraulic pump and a hydraulic motor, a steering hydraulic stepless transmission which fluidly connects a hydraulic pump and a hydraulic motor, a mechanical transmission for transmitting outputs of both said hydraulic stepless transmissions to said differential mechanism are accommodated, wherein at least one of said hydraulic stepless transmissions is disposed such that a rotational axis of a pump shaft of said one hydraulic stepless transmission and a rotational axis of a motor shaft of said one hydraulic stepless transmission are perpendicular to each other.

    摘要翻译: 一种整体型变速驱动装置,包括单个壳体,其中一对驱动轴,用于将两个所述驱动轴彼此差分连接的差速机构,液压泵和液压马达流体连接的驱动液压无级变速器,转向 容纳液压泵和液压马达流体连接的液压无级变速器,容纳用于将所述液压无级变速器的输出传递到所述差速机构的机械变速器,其中至少一个所述液压无级变速器被设置成使得所述液压无级变速器的旋转轴线 所述一个液压无级变速器的泵轴和所述一个液压无级变速器的电动机轴的旋转轴线彼此垂直。

    Transmission for self-propelled walking mowers
    7.
    发明授权
    Transmission for self-propelled walking mowers 失效
    传动自行式割草机

    公开(公告)号:US5778645A

    公开(公告)日:1998-07-14

    申请号:US706796

    申请日:1996-09-03

    摘要: In a transmission (10) comprising a casing (12), a vertical input shaft (13) having an upper end which extends upwardly of the casing and carries an input pulley (14), and a horizontal wheel axle (18) for driving a pair of mower-drive wheels (3), the input shaft intersects the wheel axle at a location in close proximity to the axle and is supported by top and bottom walls (12a, 12b) of the casing. The vertical shaft and horizontal axle are connected by a hypoid gearing (26) having a hypoid pinion (27) mounted on the shaft and a larger hypoid gear (29) mounted on the axle. The transmission has a compact configuration while the input shaft is supported in a stable manner and while the transmission efficiency between the shaft and axle is kept high. Preferably, the larger hypoid gear is rotatably mounted on the axle and a frictional clutch (32) is disposed between the gear and axle.

    摘要翻译: 在包括壳体(12)的传动装置(10)中,垂直输入轴(13)具有从壳体向上延伸并承载输入滑轮(14)的上端,以及用于驱动 一对割草机驱动轮(3),输入轴与轮轴在与轴接近的位置处相交,并由壳体的顶壁和底壁(12a,12b)支撑。 垂直轴和水平轴通过具有安装在轴上的准双曲面齿轮(27)的准双曲面齿轮(26)和安装在轴上的较大准双曲面齿轮(29)连接。 变速箱具有紧凑的结构,而输入轴以稳定的方式被支撑,并且轴和轴之间的传动效率保持较高。 优选地,较大的准双曲面齿轮可旋转地安装在轴上,摩擦离合器(32)设置在齿轮和轴之间。

    Transmission for self-propelled walking lawn mower
    8.
    发明授权
    Transmission for self-propelled walking lawn mower 失效
    传动自行走路割草机

    公开(公告)号:US5718105A

    公开(公告)日:1998-02-17

    申请号:US582436

    申请日:1996-01-03

    IPC分类号: A01D34/69 A01D34/82 B62D51/06

    摘要: A transmission for a self-propelled walking lawn mower is disclosed, the transmission comprising: i) a casing; ii) input and output shafts supported by the casing, the output shaft driving ground engaging wheels of the mower and the input shaft receiving drive force from an engine of the mower wherein the input shaft extends substantially perpendicular to the output shaft and is located almost directly above the output shaft; iii) a drive gear secured on the input shaft; iv) a driven gear rotatably mounted on the output shaft and meshing with the drive gear; and v) a clutch for transmitting the rotation of the driven gear to the output shaft.

    摘要翻译: 公开了一种自走式割草机的变速器,该变速器包括:i)壳体; ii)由壳体支撑的输入和输出轴,输出轴驱动割草机的接地轮和输入轴接收来自割草机发动机的驱动力,其中输入轴基本上垂直于输出轴延伸并且几乎直接位于 输出轴上方; iii)固定在输入轴上的驱动齿轮; iv)可旋转地安装在输出轴上并与驱动齿轮啮合的从动齿轮; 以及v)用于将从动齿轮的旋转传递到输出轴的离合器。

    Differential gear assembly with disc-shaped input member
    9.
    发明授权
    Differential gear assembly with disc-shaped input member 失效
    差速齿轮组件带有盘形输入部件

    公开(公告)号:US6015362A

    公开(公告)日:2000-01-18

    申请号:US841831

    申请日:1997-05-06

    IPC分类号: F16H48/22

    摘要: A differential gear assembly includes a disc-shaped input gear receiving drive force and having a central portion, an outer portion around the central portion, and one or more open space portions formed between the central portion and the outer portion. A pair of output shafts extend opposite each other along the axis of the input gear and one end of each of the output shafts is loosely fitted in a central bore formed in the central portion of the input gear. A pair of side bevel gears is provided each of which is fixedly attached near the end of each output shaft closer to the input gear. One or more support shafts extend radially from the central portion into the open space portions of the input gear. One or more bevel pinions is rotatably supported on the one or more support shafts, respectively, to mesh with the pair of side bevel gears. A friction mechanism is located in at least one of one or more open space portions that permits the bevel pinion to rotate with rotational resistance. With this construction, since it is possible to provide a limited slip effect without using a casing-shaped ring gear, the resulting assembly can be made compact and less costly.

    摘要翻译: 差速齿轮组件包括盘形输入齿轮承受驱动力并具有中心部分,围绕中心部分的外部部分以及形成在中心部分和外部部分之间的一个或多个开放空间部分。 一对输出轴沿着输入齿轮的轴线彼此相对延伸,并且每个输出轴的一端松动地装配在形成在输入齿轮的中心部分的中心孔中。 提供一对侧锥齿轮,每个侧锥齿轮固定地附接在靠近输入齿轮的每个输出轴的端部附近。 一个或多个支撑轴从中心部分径向延伸到输入齿轮的开放空间部分。 一个或多个斜齿轮分别可旋转地支撑在所述一个或多个支撑轴上,以与所述一对侧锥齿轮啮合。 摩擦机构位于一个或多个开放空间部分中的至少一个中,允许斜齿轮以旋转阻力旋转。 利用这种结构,由于可以在不使用套筒形环形齿轮的情况下提供有限滑动效果,所以可以使得到的组件紧凑并且成本较低。

    Power take-off assembly for working vehicles

    公开(公告)号:US06564891B2

    公开(公告)日:2003-05-20

    申请号:US09846491

    申请日:2001-04-30

    IPC分类号: B60K1728

    CPC分类号: B60K17/28 B60Y2200/41

    摘要: A power take-off casing (47) including therein a rear-PTO shaft (12) and a transmission mechanism (50) therefor is mounted on an outer surface of a rear wall (3c) of the transmission casing (3) disposed between left and right rear wheels (4) which constitute drive wheels for a working vehicle, and a gear (52) constituting an input member of the transmission mechanism is operatively connected to a drive mechanism (46) for a mid-PTO shaft (9) which extends forwardly from the inside of transmission casing through a front wall (3a) thereof. A clutch (60) for selectively cutting-off the drive of the rear-PTO shaft is provided preferably such that it couples the gear selectively to a drive gear (58) which is rotatably mounted on the mid-PTO shaft. In a working vehicle in which a transmission casing is disposed between left and right front wheels constituting the drive wheels for the vehicle, a power take-off casing having a front-PTO shaft is mounted on an outer surface of a front wall of the transmission casing.