Traveling transmission of working vehicle
    1.
    发明授权
    Traveling transmission of working vehicle 失效
    工作车辆的行驶传动

    公开(公告)号:US07124867B2

    公开(公告)日:2006-10-24

    申请号:US10509744

    申请日:2003-04-03

    Abstract: In a traveling transmission in which an auxiliary transmission is interposed between a main clutch and a mechanical transmission, the auxiliary transmission is configured such that power transmission is cut out interlockingly with the disengagement operation of the main clutch. For example, the auxiliary transmission is configured as a high-low speed selector device including a hydraulic-operated first hydraulic clutch and a spring-operated second hydraulic clutch. Preferably, there should be provided a controller for changing the position of a direction switching valve for the first and second hydraulic clutches based on the operation of an operating member such as a pedal for disengaging the main clutch. According to the present invention, it is possible to shorten a time required for a speed change operation by the mechanical transmission and, also, to achieve a smooth operation by the mechanical transmission.

    Abstract translation: 在主离合器和机械变速器之间配置辅助变速器的行驶传动装置中,辅助变速器被构造成与主离合器的分离操作互锁地切断动力传递。 例如,辅助变速器被构造为包括液压操作的第一液压离合器和弹簧操作的第二液压离合器的高速低速选择装置。 优选地,应当提供一种控制器,用于基于诸如用于使主离合器分离的踏板的操作构件的操作来改变用于第一和第二液压离合器的方向切换阀的位置。 根据本发明,可以缩短通过机械变速器的变速操作所需的时间,并且还可以通过机械变速器实现平稳的操作。

    Traveling transmission of working vehicle
    2.
    发明申请
    Traveling transmission of working vehicle 失效
    工作车辆的行驶传动

    公开(公告)号:US20050120818A1

    公开(公告)日:2005-06-09

    申请号:US10509744

    申请日:2003-04-03

    Abstract: In a traveling transmission in which an auxiliary transmission is interposed between a main clutch and a mechanical transmission, the auxiliary transmission is configured such that power transmission is cut out interlockingly with the disengagement operation of the main clutch. For example, the auxiliary transmission is configured as a high-low speed selector device including a hydraulic-operated first hydraulic clutch and a spring-operated second hydraulic clutch. Preferably, there should be provided a controller for changing the position of a direction switching valve for the first and second hydraulic clutches based on the operation of an operating member such as a pedal for disengaging the main clutch. According to the present invention, it is possible to shorten a time required for a speed change operation by the mechanical transmission and, also, to achieve a smooth operation by the mechanical transmission.

    Abstract translation: 在主离合器和机械变速器之间配置辅助变速器的行驶传动装置中,辅助变速器被构造成与主离合器的分离操作互锁地切断动力传递。 例如,辅助变速器被构造为包括液压操作的第一液压离合器和弹簧操作的第二液压离合器的高速低速选择装置。 优选地,应当提供一种控制器,用于基于诸如用于使主离合器分离的踏板的操作构件的操作来改变用于第一和第二液压离合器的方向切换阀的位置。 根据本发明,可以缩短通过机械变速器的变速操作所需的时间,并且还可以通过机械变速器实现平稳的操作。

    Hydraulic clutch assembly
    3.
    发明授权
    Hydraulic clutch assembly 失效
    液压离合器总成

    公开(公告)号:US06786317B2

    公开(公告)日:2004-09-07

    申请号:US10230632

    申请日:2002-08-29

    CPC classification number: F16D25/123 F16D21/06 F16D25/0638 F16D25/12

    Abstract: A hydraulic clutch assembly is equipped with a spring-drive hydraulic clutch, which includes a gear rotatably mounted on a transmission shaft and a clutch cylinder fixedly mounted on the transmission shaft, first and second friction elements respectively supported on the gear and the clutch cylinder in such a manner as to be slidable along an axis of the clutch (hereinafter sometimes referred to a clutch axis) and relatively non-rotatable thereto, a pressure disk disposed opposite to the friction elements, and a spring for moving the pressure disk towards the friction elements to bring the first friction element into engagement with the second friction element, in which the pressure disk is moved away from the friction elements by an effect of hydraulic pressure, thereby withdrawing the friction elements from engagement with each other.

    Abstract translation: 液压离合器组件装备有弹簧驱动液压离合器,其包括可旋转地安装在传动轴上的齿轮和固定地安装在传动轴上的离合器缸,分别支撑在齿轮和离合器缸上的第一和第二摩擦元件 这种方式能够沿着离合器的轴线(以下有时称为离合器轴线)滑动并且相对不可旋转的方式,与摩擦元件相对设置的压力盘,以及用于将压力盘朝向摩擦力移动的弹簧 元件,以使第一摩擦元件与第二摩擦元件接合,在第二摩擦元件中压力盘通过液压的作用从摩擦元件移开,从而使摩擦元件彼此接合。

    Speed change control device for tractors
    4.
    发明授权
    Speed change control device for tractors 有权
    拖拉机变速控制装置

    公开(公告)号:US06530290B2

    公开(公告)日:2003-03-11

    申请号:US09793327

    申请日:2001-02-26

    Abstract: A slidable and rotatable first control shaft (61) and a slidable and rotatable second control shaft (67) for respectively shifting main and auxiliary speed change mechanisms (26, 29) project outwardly to one side of a vehicle housing (2) and are connected respectively to a main change lever (74) and an auxiliary change lever (75) which are pivotally supported by a support member (70) fixedly provided at one side of the vehicle housing. Preferably, the main change lever is disposed at a location where an operator on a seat (76) can operate the lever easily whereas the auxiliary change lever is disposed at a location where the operator is hard to operate the lever. The support member is preferably composed of a cover member which surrounds the control shafts, lower portions of the change levers, and connecting members (80, 87) therebetween. An opening (70b) provided to the cover member for assembling the connecting members is closed by a closure member (70c).

    Abstract translation: 一个可滑动和可旋转的第一控制轴(61)和一个可滑动且可旋转的第二控制轴(67),用于分别地移动主和辅助变速机构(26,29)向外突出到车辆壳体(2)的一侧并被连接 分别由固定地设置在车辆壳体的一侧的支撑构件(70)枢转地支撑的主变速杆(74)和辅助换档杆(75)。 优选地,主换档杆设置在座椅(76)上的操作者可以容易地操作杆的位置,而辅助换档杆设置在操作者难以操作杆的位置。 支撑构件优选由围绕控制轴的盖构件,变位杆的下部以及它们之间的连接构件(80,87)组成。 设置在用于组装连接构件的盖构件的开口(70b)由关闭构件(70c)封闭。

    Front wheel drive clutch for tractors
    5.
    发明授权
    Front wheel drive clutch for tractors 有权
    拖拉机前轮驱动离合器

    公开(公告)号:US06364045B1

    公开(公告)日:2002-04-02

    申请号:US09685634

    申请日:2000-10-10

    CPC classification number: B60K23/08

    Abstract: A drive gear (37) having integral drive teeth (37a) is rotatably mounted on a transmission shaft (36) for transmitting power to front wheels, and a movable clutch member (52) having integral driven teeth (52a) engageable with the drive teeth is slidably but non-rotatably mounted on the transmission shaft. A spring (54; 54A) for biasing the movable clutch member into a direction of causing engagement of the driven teeth with the drive teeth is inserted at a part thereof into an axial bore (52b) in the clutch member. A piston (54) is slidably fitted in a cylinder member (55) which is fixedly mounted on the transmission shaft at a radially inward location of the drive and driven teeth. The transmission shaft includes a fluid passage (60) which applies fluid pressure to the piston such that the piston is moved so as to move the movable clutch member into a direction of causing disengagement of the driven teeth from the drive teeth. The front wheel drive clutch of this structure is small in the number of parts, is compact in its axial length, and is rich in durability.

    Abstract translation: 具有一体式驱动齿(37a)的驱动齿轮(37)可旋转地安装在用于向前轮传递动力的传动轴(36)和具有与驱动齿接合的整体从动齿(52a)的可动离合器部件 可滑动但不能旋转地安装在传动轴上。 用于将可动离合器构件偏压到使从动齿与驱动齿接合的方向的弹簧(54; 54A)在其一部分处插入到离合器构件中的轴向孔(52b)中。 活塞54可滑动地装配在气缸构件55中,该气缸构件55在传动轴和驱动齿的径向向内位置固定地安装在传动轴上。 传动轴包括向活塞施加流体压力的流体通道(60),使得活塞移动以使可动离合器构件沿着使驱动齿与驱动齿分离的方向移动。 这种结构的前轮驱动离合器的部件数量小,其轴向长度紧凑,并且具有较强的耐久性。

    Transmission assembly for working vehicles
    6.
    发明授权
    Transmission assembly for working vehicles 失效
    工作车辆传动总成

    公开(公告)号:US06487924B2

    公开(公告)日:2002-12-03

    申请号:US09882504

    申请日:2001-06-15

    Abstract: Two fluid-operated supplementary speed change mechanisms (9, 10), one of which is formed into a direction-reversing mechanism and the other of which is formed into a high/low speed-selecting mechanism, are provided in a front housing 1 at locations before and behind a bearing support wall (4) which divides the inside of the front housing into front and rear chambers. Two transmission shafts (8, 12), on which fluid-operated clutches (38F, 38R, 45, 46) of the supplementary speed change mechanisms are mounted, are disposed non-coaxially and are supported by the bearing support wall, and rotary joints (54F, 54R, 54L, 55H, 55L) for connecting fluid passages (51F, 51R, 51L, 52H, 52L) in the transmission shafts, which passages are in fluid communication with the fluid-operated clutches, to stationary fluid passages are formed in outer circumferences of the transmission shafts within an inside of the single bearing support wall.

    Abstract translation: 两个流体操作的辅助变速机构(9,10)设置在前壳体1中,其中一个形成为方向反转机构,另一个形成为高/低速选择机构 轴承支撑壁(4)之前和之后的位置,其将前壳体的内部分成前室和后室。 在其上安装有辅助变速机构的流体操作离合器(38F,38R,45,46)的两个传动轴(8,12)非同轴地设置并且由轴承支撑壁支撑,并且旋转接头 (54F,54R,54L,55H,55L),用于将传动轴中的流体通路(51F,51R,51L,52H,52L)与流体操作的离合器流体连通地连接到固定的流体通道 在单个轴承支撑壁的内部内的传动轴的外周。

    Baffle plate and transmission
    7.
    发明申请
    Baffle plate and transmission 审中-公开
    挡板和传输

    公开(公告)号:US20060179973A1

    公开(公告)日:2006-08-17

    申请号:US10548923

    申请日:2004-03-08

    Abstract: A baffle plate used for a transmission that has a transmission mechanism including a rotating body operatably connected to a drive source and has a housing receiving the transmission mechanism and having a storage space where oil can be stored. The baffle plate is installed in the housing so as to separate the storage space of the housing in a liquid sealing manner into a surrounding space surrounding at least the lowermost end portion of the rotating body and into a main space other than the surrounding space. In the state installed in the housing, oil in the surrounding space is moved to the main space by pump effect induced by rotating motion of the rotating body. The baffle plate can effectively prevent, with a sufficient amount of oil stored in the housing, the lowering of transmission efficiency of the transmission mechanism caused by the stored oil.

    Abstract translation: 用于变速器的挡板,其具有变速机构,该变速机构包括可操作地连接到驱动源的旋转体,并且具有容纳所述变速机构的壳体,并且具有能够储存油的储存空间。 所述挡板安装在所述壳体中,以将所述壳体的储存空间以液体密封的方式分隔成至少围绕所述旋转体的最下端部分的周围空间并且进入围绕所述周围空间的主空间。 在安装在壳体中的状态下,周围空间的油通过旋转体的旋转运动引起的泵送效应移动到主空间。 挡板可以有效地防止储存在壳体中的足够量的油降低由储存的油引起的变速机构的传动效率。

    Method of controlling hydraulic pressure in speed change mechanism having hydraulic clutch
    8.
    发明授权
    Method of controlling hydraulic pressure in speed change mechanism having hydraulic clutch 有权
    具有液压离合器的变速机构中的液压控制方法

    公开(公告)号:US06491604B1

    公开(公告)日:2002-12-10

    申请号:US09831955

    申请日:2001-05-16

    Abstract: A speed change mechanism (1) constructed by connecting in tandem a hydraulic type speed change unit (17) having a plurality of hydraulic clutches (57, 58, 59) to be alternatively engaged and a hydraulic type speed change unit (20) having a plurality of hydraulic clutches (66, 67, 68) to be alternatively engaged, wherein a time-varying region (common slip region) is secured in which the two clutches slip in common such that during speed change, when the working hydraulic pressure in a clutch to be engaged is on its way to gradual increase, the working hydraulic pressure in a clutch to be disengaged lowers. This common slip region is made smaller during shift-down than during shift-up by a change in time-difference between the pressure increase start time for the clutch to be engaged and the pressure decrease start time for the clutch to be disengaged or by a change in the pressure decrease property of the clutch to be disengaged, and is maintained constant irrespective of whether one or two hydraulic clutches are engaged and disengaged during speed change respectively or irrespective of a difference in engine rpm.

    Abstract translation: 一种变速机构(1),其通过串联连接具有多个待交替接合的多个液压离合器(57,58,59)的液压变速单元(17)构成,液压变速单元(20)具有 多个液压离合器(66,67,68)可选择地接合,其中确保了两个离合器共同滑动的时变区域(公共滑动区域),使得在变速期间,当一个 要接合的离合器正在逐渐增加,要脱离的离合器中的工作液压降低。 该偏移区域在偏移期间比在向上移动期间由于要接合的离合器的增压开始时间和要离合的离合器的减压开始时间之间的时间差的变化而变小,或者通过 改变要分离的离合器的减压性能,并且保持恒定,而不管一个或两个液压离合器是否在变速改变期间分别接合和分离,或者与发动机转速的差异无关。

    Transmission system in working vehicles
    9.
    发明授权
    Transmission system in working vehicles 有权
    工作车辆传动系统

    公开(公告)号:US06360623B1

    公开(公告)日:2002-03-26

    申请号:US09518395

    申请日:2000-03-03

    Inventor: Mizuya Matsufuji

    Abstract: In a front housing (1) including at a front end portion thereof an engine flywheel (6), there are provided a primary drive shaft (8) which is co-axial with the flywheel, a transmission shaft (11) which is parallel to the drive shaft, and an output shaft (13) which is co-axial with the drive shaft. The output shaft is connected to a speed change mechanism (17, 20) in a transmission case (2) succeeding to the front housing. A first supplemetary speed charge mechanism (12) is disposed between the drive shaft and the transmission shaft, and a second supplementary speed change mechanism (14) is disposed between the transmission shaft and the output shaft. One of these supplementary change mechanisms is formed into a direction-reversing mechanism, and the other change mechanism is formed into a high/low speed-selecting mechanism. Preferably, the front housing includes a first bearing support wall (1a) disposed before the first supplementary change mechanism, a second bearing support wall (4) disposed between the first and second supplementary change mechanisms, and a third bearing support wall (5) disposed behind the second supplementary change mechanism. The second and third bearing support walls are removably secured. Preferably, the second supplementary change mechanism comprises a fluid-actuated clutch (45) and a spring-actuated clutch (46) which are supplied with fluid pressure through a single fluid passage (61) in the transmission shaft.

    Abstract translation: 在其前端包括发动机飞轮(6)的前壳体(1)中,设置有与飞轮同轴的主驱动轴(8),传动轴(11),其平行于 驱动轴和与驱动轴同轴的输出轴(13)。 输出轴与前壳体之后的变速箱(2)中的变速机构(17,20)连接。 在驱动轴和传动轴之间设置有第一柔性加速装置(12),并且在传动轴和输出轴之间设置有第二辅助变速机构(14)。 这些辅助变换机构中的一个形成为方向反转机构,另一变换机构形成为高/低速选择机构。 优选地,前壳体包括设置在第一辅助更换机构之前的第一轴承支撑壁(1a),设置在第一和第二辅助更换机构之间的第二轴承支撑壁(4)和设置在第一和第二辅助更换机构之间的第三轴承支撑壁 在第二补充变革机制之后。 第二和第三轴承支撑壁可移除地固定。 优选地,第二辅助变换机构包括流体致动的离合器(45)和弹簧致动的离合器(46),其通过传动轴中的单个流体通道(61)供应流体压力。

    Drive transmission assembly for working vehicles
    10.
    发明授权
    Drive transmission assembly for working vehicles 有权
    驱动工作车辆传动组件

    公开(公告)号:US6044720A

    公开(公告)日:2000-04-04

    申请号:US243275

    申请日:1999-02-02

    Inventor: Mizuya Matsufuji

    Abstract: A direction-reversing mechanism (20) is disposed between a primary shaft (17) and output shaft (19) which are arranged in parallel with each other with the output shaft being arranged at a level lower than that of the primary shaft. A first fluid-operated speed change mechanism (23) is disposed between a first drive shaft (21), arranged co-axially with and coupled to the output shaft, and a first driven shaft (22) arranged in parallel with the drive shaft. The drive shaft is arranged at a level lower than that of the driven shaft, and plural fluid-actuated clutches (63, 64, 65) are mounted on the drive shaft. A second fluid-operated speed change mechanism (24) is disposed between a second drive shaft (26), arranged co-axially with and coupled to the first driven shaft, and a second driven shaft (27) arranged in parallel with the second drive shaft. The second driven shaft is arranged at a level lower than that of the second drive shaft, and plural fluid-actuated clutches (75, 76, 77) are mounted on the second driven shaft. The fluid-actuated clutches mounted on the transmission shafts (21, 27) of low levels do not highten the level of an upper surface of the vehicle body and allows to arrange valve means for the first and second change mechanisms concentratedly on an outer surface of the vehicle body.

    Abstract translation: 方向反转机构(20)设置在彼此平行布置的主轴(17)和输出轴(19)之间,输出轴布置在低于主轴的水平面的水平面上。 第一流体动力变速机构(23)设置在与输出轴同轴并联接的第一驱动轴(21)和与驱动轴平行布置的第一从动轴(22)之间。 驱动轴布置在比从动轴低的水平面上,并且多个流体驱动离合器(63,64,65)安装在驱动轴上。 第二流体操作的变速机构(24)设置在与第一从动轴同轴并联接的第二驱动轴(26)和与第二驱动器并联设置的第二从动轴(27) 轴。 第二从动轴配置在比第二驱动轴低的水平面上,多个流体驱动离合器(75,76,77)安装在第二从动轴上。 安装在低水平的传动轴(21,27)上的流体驱动的离合器不会使车体上表面的高度不会变高,并允许将第一和第二改变机构的阀装置集中布置在 车体。

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