Control and regulating device for a hydrostatic transmission
    1.
    发明授权
    Control and regulating device for a hydrostatic transmission 失效
    控制和调节水位传输装置

    公开(公告)号:US5184466A

    公开(公告)日:1993-02-09

    申请号:US746125

    申请日:1991-08-15

    摘要: The invention relates to a control and regulating device for a hydrostatic transmission which comprises a reversible hydraulic pump that can be driven by a driving motor, at least one hydraulic motor that is connected via two working lines to the hydraulic pump, and an adjusting device that can be acted on by an adjusting pressure for adjusting the volume and direction of displacement of the hydraulic pump, together with a displacement-direction control valve for controlling and regulating the action of the adjusting pressure on the adjusting device, can be actuated as desired both by a control signal that is proportional to the speed of rotation of the driving motor and predetermines the direction of displacement of the hydraulic pump and by a working pressure signal that is proportional to the working pressure in the working line then carrying the high pressure. To enable a load that has been decelerated to a standstill both to be maintained at a standstill and also to be shunted without mechanical braking, even when actuation of the displacement-direction control valve by the control signal is interrupted, the invention provides for switching over the working pressure signal applied to the displacement-direction control valve in the absence of the control signal.

    摘要翻译: 本发明涉及一种用于静液压变速器的控制和调节装置,其包括可由驱动电动机驱动的可逆液压泵,经由两条工作管线连接到液压泵的至少一个液压马达和调节装置, 可以通过用于调节液压泵的排量的体积和方向的调节压力以及用于控制和调节调节装置上的调节压力的作用的位移方向控制阀来实现,可以根据需要被致动 通过与驱动马达的旋转速度成比例的控制信号,并且预先确定液压泵的排量方向以及与工作线中的工作压力成比例的工作压力信号,然后承载高压。 为了使已经减速到停止的负载被保持在静止状态,并且在没有机械制动的情况下也被分流,即使当控制信号的驱动位移方向控制阀被中断时,本发明提供了切换 在没有控制信号的情况下施加到位移方向控制阀的工作压力信号。

    Hydrostatic Drive
    2.
    发明申请
    Hydrostatic Drive 失效
    静液压驱动

    公开(公告)号:US20070295004A1

    公开(公告)日:2007-12-27

    申请号:US11667607

    申请日:2005-11-03

    IPC分类号: F15B21/04

    摘要: The invention relates to a hydrostatic drive comprising a hydraulic pump (1) and at least one hydraulic engine (3). Said hydraulic engine (3) is contacted to a closed circuit via a first working line (5) and a second working line (6). In order to limit the swept volume flowing in one of the two working lines (5) towards the hydraulic pump (1), a volume flow divider (60) is provided in the working line (5) and allows to remove a partial volume flow from the working line (5).

    摘要翻译: 本发明涉及一种包括液压泵(1)和至少一个液压发动机(3)的液压驱动装置。 所述液压发动机(3)经由第一工作线(5)和第二工作线(6)与闭合回路接触。 为了将在两个工作线路(5)中的一个中流动的扫掠体积限制在液压泵(1)上,在工作管线(5)中设置有体积分流器(60),并且允许去除部分体积流量 从工作线(5)。

    Hydrostatic transmission with brake valve
    3.
    发明授权
    Hydrostatic transmission with brake valve 失效
    带制动阀的静液压传动

    公开(公告)号:US5634335A

    公开(公告)日:1997-06-03

    申请号:US605198

    申请日:1996-03-01

    摘要: The invention relates to a hydrostatic transmission having a hydraulic pump (1) and an adjustable hydraulic motor (2) which is connected to first and second working lines (13, 14) of which at least the first (13) leads to the hydraulic pump, and a setting member (40)--for setting the motor displacement volume--is connected with a setting device (4) which upon load operation of the hydrostatic transmission can be acted upon by a setting pressure in a first setting pressure line (44, 57, 43) connected at least to the first working line, and in the case of overrun operation, can be acted upon by the setting pressure in a second setting pressure line (45, 51, 43), connected at least to the second working line. There is a brake valve (6) arranged at least in the second working line downstream of the connection of the second setting pressure line and which upon overrun operation of the hydrostatic transmission the respective working line is restricted. In order to be able to adapt the braking effect to differing operating conditions, there is provided a relief valve device (9, 10) which upon overrun operation is controlled by means of a control pressure taken from the second setting pressure line (45, 51, 43), against a counter-pressure (66, 76) in the direction of throughflow position and in this throughflow position relieves the setting pressure in the second setting pressure line (45, 51, 43) controllably via a relief line (65) to the tank (12).

    摘要翻译: PCT No.PCT / EP94 / 02504 Sec。 371日期1996年3月1日 102(e)1996年3月1日PCT PCT 1994年7月28日PCT公布。 公开号WO95 / 06830 日期:1995年3月9日本发明涉及一种具有液压泵(1)和可调节液压马达(2)的液压传动装置,其连接到第一和第二工作线路(13,14),至少第一(13) 通向液压泵,并且用于设定电动机排量的设定构件(40)与设置装置(4)连接,在静液压传动装置的加载操作可以通过第一设定中的设定压力 至少连接到第一工作线的压力线(44,57,43),并且在超程操作的情况下,可以在第二设定压力线(45,51,43)中的设定压力下作用,连接在 至少到第二条工作线。 至少设置在第二设定压力线的连接的下游的第二工作线路中的制动阀(6),并且在液压传动装置的超程运转时,各个工作线路受到限制。 为了能够将制动效果适应于不同的运行条件,提供了一种安全阀装置(9,10),其在通过从第二设定压力线(45,51)获取的控制压力来控制超速运行时 ,43)相对于通流位置方向的反压(66,76),并且在该通流位置中,通过浮雕线(65)可控地减轻第二设定压力线(45,51,43)中的设定压力, (12)。

    Summation power output regulating system for at least two hydrostatic
transmissions
    4.
    发明授权
    Summation power output regulating system for at least two hydrostatic transmissions 失效
    求和功率输出调节系统,用于至少两台液压传动

    公开(公告)号:US4880359A

    公开(公告)日:1989-11-14

    申请号:US115762

    申请日:1987-10-30

    摘要: In a summation power output regulating system for first and second hydrostatic machines (3, 4), having a common drive and comprising at least two hydrostatic transmissions (1, 2), each of the machines (3, 4) having a hydraulic control device (7, 8), wherein the second machine (4) is provided with a hydraulic power output regulator (24) which regulates the pressure acting on the control device (8) in dependence on the power output of the second machine at that time and a control pressure, dependant on the working pressure of the first machine, is transmitted by means of a hydraulic actuator to the power output regulator (24), substantially 100% utilization of the power available is attained with a simple construction and function by providing the first machine (3) with a power output measuring valve (34; 63, 64) which determines the power output at the time and regulates the control pressure (P.sub.3) in dependence on the power output of the first machine.

    摘要翻译: 在用于第一和第二静液压机(3,4)的总和功率输出调节系统中,具有共同的驱动并且包括至少两个静液压变速器(1,2),每个机器(3,4)具有液压控制装置 (7,8),其中所述第二机器(4)设置有液压动力输出调节器(24),所述液压动力输出调节器根据所述第二机器在那时的功率输出来调节作用在所述控制装置(8)上的压力;以及 取决于第一机器的工作压力的控制压力通过液压致动器传递到动力输出调节器(24),通过提供简单的结构和功能可实现100%的可利用的功率的利用, 第一机器(3),其具有功率输出测量阀(34; 63,64),其确定该时间的功率输出,并且根据第一机器的功率输出来调节控制压力(P3)。

    Pressure limiting valve with reduced differential area
    5.
    发明授权
    Pressure limiting valve with reduced differential area 失效
    减压差压区域的限压阀

    公开(公告)号:US08302621B2

    公开(公告)日:2012-11-06

    申请号:US11793857

    申请日:2005-12-19

    IPC分类号: F16K17/26

    摘要: A pressure limiting valve comprises a valve closing body (7) which comprises a valve closing surface (8) which together with a first valve seat (9) opposing the valve closing surface (8) forms a first seal seat and a valve closing body orifice (11), which is surrounded by a second valve seat (12) which together with a closing head (14) configured on an axially displaceable valve bolt (13) forms a second seal seat and with a spring plate (15) which is connected to the valve bolt (13) and axially displaceable therewith, and a first return spring (10) clamped between the spring plate (15) and the valve closing body (7), which pretensions the valve bolt (13) against the second valve seat (12) configured on the valve closing body (7) and a second return spring (35) which pretensions a valve unit (7, 13, 15, 10) against the first valve seat (9). In the valve bolt (13) a longitudinal bore (53) is provided extending over the entire axial length of the valve bolt (13).

    摘要翻译: 压力限制阀包括一个阀关闭体(7),该阀关闭体(7)包括与阀闭合面(8)相对的第一阀座(9)与阀闭合面(8)一起形成第一密封座和闭阀体孔 (11),其被第二阀座(12)包围,所述第二阀座与构造在可轴向移动的阀螺栓(13)上的闭合头(14)一起形成第二密封座,并且弹簧板(15)连接 以及夹紧在弹簧板(15)和阀关闭体(7)之间的第一复位弹簧(10),其将阀螺栓(13)预压在第二阀座 (12),其构造在所述阀关闭体(7)上;以及第二复位弹簧(35),其将阀单元(7,13,15,10)预压在所述第一阀座(9)上。 在阀螺栓(13)中,纵向孔(53)设置成在阀螺栓(13)的整个轴向长度上延伸。

    Gear pump and holding element therefor
    6.
    发明授权
    Gear pump and holding element therefor 失效
    齿轮泵及其保持元件

    公开(公告)号:US07413424B2

    公开(公告)日:2008-08-19

    申请号:US10550845

    申请日:2004-03-25

    IPC分类号: F01C1/02 F01C1/063

    摘要: The gear pump unit (100) comprises a pump cover (1), an internal rotor (16) mounted rotatably in a recess (9) of the pump cover (1) and formed in a rotationally fixed manner on a driven plug-in shaft (11), and an external rotor (19), which is rotatably mounted in the recess (9) of the pump cover (1) eccentrically relative to the axis of rotation (A) of the internal rotor (16). The external rotor (19) is in mesh with the internal rotor (16) only in a first angle-of-rotation range (α). In a second angle-of-rotation range (β) lying opposite the first angle-of-rotation range (α), the internal rotor (16) is in contact with an inner surface (25) of a web (23), which is disposed in the recess (9). The outer surface (26) is in contact with the external rotor (19). After closing of the recess (9) by a cover plate (27) fastened to the pump cover (1), an admission pressure chamber (21) and a low-pressure chamber (22) are therefore formed in the recess (9). A holding element (33), which is held in the pump cover (1), in the initial assembled state of the gear pump unit (100) holds the cover plate (27) at a fixed angle of rotation on the pump cover (1).

    摘要翻译: 齿轮泵单元(100)包括泵盖(1),可旋转地安装在泵盖(1)的凹部(9)中并且以旋转固定的方式形成在从动插入轴上的内转子 (11)和外转子(19),其相对于内转子(16)的旋转轴线(A)偏心地安装在泵盖(1)的凹部(9)中。 外转子(19)仅在第一旋转角度(α)内与内转子(16)啮合。 在与第一旋转旋转范围(α)相反的第二旋转角度(β)中,内转子(16)与腹板(23)的内表面(25)接触,其中 设置在凹部(9)中。 外表面(26)与外转子(19)接触。 在通过固定在泵罩(1)上的盖板(27)关闭凹部(9)之后,在凹部(9)上形成入口压力室(21)和低压室(22)。 在齿轮泵单元(100)的初始组装状态下保持在泵盖(1)中的保持元件(33)将盖板(27)以固定的旋转角度保持在泵盖(1)上 )。

    Rotary mechanism control with power supply
    7.
    发明授权
    Rotary mechanism control with power supply 失效
    带电源的旋转机构控制

    公开(公告)号:US06167702A

    公开(公告)日:2001-01-02

    申请号:US09117851

    申请日:1998-08-12

    IPC分类号: F16D3102

    摘要: The invention relates to a hydraulic controller, in particular for the control of the rotating mechanism of an excavator. In a hydraulic drive circuit a drive hydraulic pump (2) and a drive hydraulic motor are provided, which are connected via working lines (3, 4). The hydraulic controller includes an adjustment arrangement (9) for adjusting a setting piston (12) arranged between two setting pressure chambers (10, 11) and acting upon the displacement volume of the drive hydraulic pump (2). Further, a pre-control arrangement (8) is provided which acts upon one of the setting pressure chambers (10, 11) with a setting pressure, in dependence upon the pressure difference between two control lines (6, 7). In accordance with the development according to the invention, the precontrol arrangement (8) is connected with a feed line (30) via a pressure regulation valve (56), whereby the precontrol arrangement (8), in a control position (42, 43), connects one of the two setting pressure chambers (10; 11) with the feed line (19) via the pressure regulation valve (56) and connects the respective other setting pressure chamber (11; 10) with a pressure fluid tank (17). In a neutral position (41), both setting pressure chambers (10, 11) are connected with the feed line (30) via the pressure regulation valve (56).

    摘要翻译: 本发明涉及一种液压控制器,特别是用于控制挖掘机的旋转机构。 在液压驱动电路中,设有通过工作线(3,4)连接的驱动液压泵(2)和驱动液压马达。 液压控制器包括用于调节设置在两个设定压力室(10,11)之间并作用于驱动液压泵(2)的排量的调节活塞(12)的调节装置(9)。 此外,根据两个控制线(6,7)之间的压力差,设置预调节装置(8),该预控制装置(8)以设定压力作用在一个设定压力室(10,11)上。 根据本发明的发展,预控装置(8)经由压力调节阀(56)与进料管线(30)连接,由此预控装置(8)处于控制位置(42,43) )经由压力调节阀(56)将两个设定压力室(10; 11)中的一个与供给管路(19)连接,并将各个设定压力室(11; 10)与压力流体箱 )。 在中立位置(41)中,两个设定压力室(10,11)经由压力调节阀(56)与供给管路(30)连接。

    Control apparatus for several drive assemblies consisting of hydrostatic
drive units
    8.
    发明授权
    Control apparatus for several drive assemblies consisting of hydrostatic drive units 失效
    用于由静液压驱动单元组成的多个驱动组件的控制装置

    公开(公告)号:US4544330A

    公开(公告)日:1985-10-01

    申请号:US613502

    申请日:1984-05-23

    摘要: A control apparatus for several drive assemblies, which consist of hydrostatic drive units, is described. The hydraulic pumps of the hydrostatic drives are driven by means of a common prime mover and are controlled in terms of output. The output control device consists of an adjusting piston, which is connected with the control element of the hydraulic pumps and upon both sides of which pressure acts, and of a spool valve which controls the pressure action on both pressure chambers at the front surfaces of the adjusting piston and upon which, on one side, the working pressure of the pumps acts and upon which, on the other side, an adjustable spring acts. In order to give priority to one of the hydraulic pumps or one of the drive assemblies and to allow sufficient output to come from the driving engine in each operating condition, there is provided a measuring piston upon which the working pressure of the priority hydraulic pump acts and which presses on a first lever which counteracts the force of the adjustable spring acting upon the spool valve of the output control apparatus.

    摘要翻译: 描述了由静液压驱动单元组成的多个驱动组件的控制装置。 液压驱动器的液压泵通过共同的原动机驱动,并根据输出进行控制。 输出控制装置包括调节活塞,该调节活塞与液压泵的控制元件和压力作用的两侧连接;以及滑阀,其控制在压力室的前表面上的压力作用 调节活塞,一方面,泵的工作压力作用在另一侧上,另一方面,可调弹簧作用在该活塞上。 为了优先考虑其中一个液压泵或其中一个驱动组件,并且在每个操作状态下允许足够的输出从驱动发动机出来,设置有测量活塞,优先液压泵的工作压力在该测量活塞上作用 并且其按压在抵抗作用在输出控制装置的滑阀上的可调节弹簧的力的第一杠杆上。

    Axial Piston Machine With an Elongated Guide Element for a Cage Segment
    9.
    发明申请
    Axial Piston Machine With an Elongated Guide Element for a Cage Segment 有权
    轴向活塞机,带有一个用于保持架段的伸长导向元件

    公开(公告)号:US20100089230A1

    公开(公告)日:2010-04-15

    申请号:US11989979

    申请日:2006-08-02

    IPC分类号: F01B3/02 F01B31/00

    摘要: The invention relates to an axial piston machine (1) of swashplate construction, with two pivot bearing parts (13b, 13c), between which a gap (14) is arranged, in which a cage segment (15) is pivotably mounted with a plurality of rolling elements (13f) about a common pivot axis (13a), the cage segment (15) being guided by an elongated guide element (19) extending transversely to the gap (14) and projecting over the gap (14), and which at one of its ends has a round guide body (19c), with which it is pivotably mounted in a sliding guide (24), which is arranged on one of the two pivot bearing parts (13b, 13c) or built-on components thereof. The guide element (19) is respectively pivotably connected by a rotary bearing (21, 22) to the cage segment (15) and the other pivot bearing part (13c). In order to improve the guiding of the cage segment (15), the guide element (19) in the region of its rotary bearing (22) connected to the cage segment (15), is displaceably connected to the cage segment (15) by an elongated guide (23) in its longitudinal direction and in the region of its end region connected to the other pivot bearing part (13c) is rotatable by the associated rotary bearing (21) and rigidly connected in its longitudinal direction to the other pivot bearing part (13c).

    摘要翻译: 本发明涉及一种旋转斜盘结构的轴向活塞机(1),具有两个枢转轴承部分(13b,13c),其间布置有间隙(14),其中笼形部分(15)可枢转地安装有多个 围绕公共枢转轴线(13a)的滚动元件(13f),所述保持架部分(15)由横向于所述间隙(14)延伸并突出在所述间隙(14)上的细长引导元件(19)引导,并且 在其一端具有圆形引导体(19c),其可枢转地安装在滑动引导件(24)中,滑动引导件(24)布置在两个枢转轴承部分(13b,13c)中的一个上或其内置部件 。 引导元件(19)分别通过旋转轴承(21,22)可枢转地连接到保持架部分(15)和另一个枢转轴承部分(13c)。 为了改进轿厢(15)的引导,在与轿厢节段(15)连接的旋转轴承(22)的区域中的导向元件(19)可通过 在其纵向方向上和连接到另一个枢转轴承部分(13c)的端部区域中的细长导向件(23)可由相关联的旋转轴承(21)旋转,并且在其纵向方向上刚性地连接到另一枢转轴承 部分(13c)。

    Pressure Cutoff Valve Unit and Hydraulic Circuit Equipped with It
    10.
    发明申请
    Pressure Cutoff Valve Unit and Hydraulic Circuit Equipped with It 审中-公开
    压力截止阀单元及配备的液压回路

    公开(公告)号:US20080017259A1

    公开(公告)日:2008-01-24

    申请号:US11793855

    申请日:2005-12-13

    IPC分类号: F15B13/01

    摘要: The invention concerns a pressure cutoff valve unit (34) with a shuttle valve (36), which has a first input connection (39) and a second input connection (40), which it is possible to connect to an output depending on the pressures at the input connections (39, 40). The shuttle valve (36) has a shuttle valve closing element (45′), which in a first end position connects the first input connection (39) to the output and in a second end position connects the second input connection (40) to the output. The shuttle valve closing element (45′) can be locked in a position between the two end positions, and in this locked position the first input connection (39) is connected to the second input connection (40).

    摘要翻译: 本发明涉及具有梭阀(36)的压力截止阀单元(34),其具有第一输入连接件(39)和第二输入连接件(40),其可根据压力连接到输出件 在输入连接(39,40)处。 梭阀(36)具有梭阀关闭元件(45'),其在第一端位置将第一输入连接件(39)连接到输出端,并且在第二端位置将第二输入连接件(40)连接到 输出。 梭阀闭合元件(45')可以锁定在两个端部位置之间的位置,并且在该锁定位置,第一输入连接件(39)连接到第二输入连接件(40)。