公开(公告)号：US06694861B2

公开(公告)日：2004-02-24

申请号：US09793218

申请日：2001-02-26

申请人： Richard O. Glasson

发明人： Richard O. Glasson

IPC分类号： F01B3112

CPC分类号： F15B15/283 ,  G05D5/02 ,  H01R13/521

摘要： A sensor mountable within a hydraulic cylinder provides a precision signal indicative of the position of the piston. The sensor includes a flexible connector attached between the cylinder piston and a converting element for sensing the piston displacement. The converting element comprises a pick-up spool, under tension, coupled to the other end of the connector and rotatable about an axis. A lead screw engages threads on the spool, and translates linearly when the spool rotates. A non-contacting electromechanical transducer senses the position of the lead screw, and provides an output signal proportional to the motion or position of the movable element. The transducer may be an LVDT or other transducer. A high-pressure seal assembly provides an electrical path between the sensor and an external connector. A piston stop prevents the piston from damaging the sensor. The sensor is held within the cylinder by port inserts threaded into standard cylinder hydraulic fluid ports and advanced inwardly to grip the sensor.

摘要翻译： 可安装在液压缸内的传感器提供指示活塞位置的精确信号。 该传感器包括一个柔性连接器，其连接在气缸活塞和用于感测活塞位移的转换元件之间。 转换元件包括在张紧下连接到连接器的另一端并绕轴线转动的拾取线轴。 导螺杆接合线轴上的螺纹，并且当线轴旋转时线性平移。 非接触式机电换能器感测导螺杆的位置，并且提供与可移动元件的运动或位置成比例的输出信号。 换能器可以是LVDT或其他换能器。 高压密封组件提供传感器和外部连接器之间的电气路径。 活塞止挡件可防止活塞损坏传感器。 传感器通过插入标准气缸液压流体端口的端口插入件保持在气缸内，向内推进以夹紧传感器。

公开(公告)号：US5566463A

公开(公告)日：1996-10-22

申请号：US259794

申请日：1994-06-15

申请人： Fu L. Chang

发明人： Fu L. Chang

IPC分类号： F15B15/28 ,  G05D3/12 ,  G01B5/02

CPC分类号： G05D3/12 ,  F15B15/283 ,  G05B2219/37126 ,  G05B2219/41301 ,  G05B2219/41311

摘要： A servo system includes a driven body (C), a hydraulic driving unit (A) for moving the driven body (C), a mechanical hydraulic servo valve (1), a sheave (31), a flexible measuring tape (33), a rotary driving source (M) and an adjusting unit (4,5,6,7). The servo valve (1) includes a spring-biased movable spool (11) and can activate the driving unit (A) to move the driven body (C) when the spool (11) is moved. The sheave (31) is mounted on the driven body (C) and has an outer peripheral surface. The measuring tape (33) has a first end portion secured to the sheave (31), a second end portion (331), and an intermediate portion wound on the sheave (31) along the outer peripheral surface of the sheave (31). The rotary driving source (M) is coupled operably to the sheave (31) and is operable to rotate the sheave (31) in order to wind and unwind the measuring tape (33). The adjusting unit (4,5,6,7) is coupled to the second end portion (331) of the measuring tape (33) and the spool (11) so as to move the spool (11) by a distance equivalent to linear displacement of the measuring tape (33) multiplied by a selected factor less than 1 so as to improve performance of the system.

摘要翻译： 伺服系统包括从动体（C），用于使被驱动体（C）移动的液压驱动单元（A），机械液压伺服阀（1），滑轮（31），柔性卷带（33） 旋转驱动源（M）和调节单元（4,5,6,7）。 伺服阀（1）包括弹簧偏置的可动卷轴（11），并且当滑阀（11）移动时，可以启动驱动单元（A）以移动从动体（C）。 滑轮（31）安装在被驱动体（C）上并具有外周面。 测量带（33）具有固定到滑轮（31）的第一端部，第二端部（331）和沿着滑轮（31）的外周表面缠绕在滑轮（31）上的中间部分。 旋转驱动源（M）可操作地联接到滑轮（31）并且可操作以使滑轮（31）旋转，以便卷绕和展开卷尺（33）。 调节单元（4,5,6,7）联接到卷尺（33）的第二端部（331）和卷轴（11）上，以便将卷轴（11）移动相当于线性 测量带（33）的位移乘以小于1的选定因子，以提高系统的性能。

公开(公告)号：US4475741A

公开(公告)日：1984-10-09

申请号：US269715

申请日：1981-06-02

申请人： Ernst Conrad

发明人： Ernst Conrad

IPC分类号： A01B59/00 ,  B60D1/155 ,  B62D49/06 ,  F15B15/28 ,  F16C7/06 ,  B60D1/00

CPC分类号： B60D1/04 ,  A01B59/004 ,  B60D1/155 ,  B62D49/065 ,  F15B15/283 ,  F16C7/06

摘要： In the case of the adjustable upper link in a three-point suspension device for a tractor, comprising a locking device in the form of a line fitted with a shut-off device and connecting together the two end-faces of the hydraulic cylinder, the invention simplifies the operation of the device in that it may be adjusted effortlessly from the tractor-seat. This is achieved in that the shut-off device is in the form of a ball-valve having an axis secured to a forked actuating lever, and in that springs are provided to urge the said actuating lever towards the shut-off position. A scale provides the tractor-driver with an accurate indication of the setting of the link. The design of a tube accommodating one end of the piston-rod as a compressed-air chamber ensures automatic displacement of the piston in the hydraulic cylinder.

摘要翻译： 在用于拖拉机的三点悬挂装置中的可调节的上连杆的情况下，包括具有切断装置的线形式的锁定装置并将液压缸的两个端面连接在一起， 发明简化了装置的操作，其可以从拖拉机座部轻松地调节。 实现这一点的是，截止装置是具有固定到叉形致动杆的轴线的球阀的形式，并且提供弹簧以将所述致动杆推向关闭位置。 比例尺为拖拉机驱动程序提供链接设置的准确指示。 容纳活塞杆的一端作为压缩空气室的管的设计确保活塞在液压缸中的自动位移。

公开(公告)号：US4286386A

公开(公告)日：1981-09-01

申请号：US70485

申请日：1979-08-28

申请人： Irvin E. Long

发明人： Irvin E. Long

IPC分类号： F15B15/28 ,  G01D5/165 ,  G01B7/02

CPC分类号： F15B15/283 ,  G01D5/165

摘要： A displacement measuring device is disclosed that is particularly useful for measuring and remotely indicating the displacement of a piston rod relative to the cylinder of a power actuator of an earth working implement. The device includes a variable resistor controlled by a gearless actuator connected with the piston rod so that the effective resistance of the resistor is varied depending upon the axial displacement of the piston rod relative to the cylinder. An indicator is connected by electrical circuitry with the variable resistor to display the amount of piston rod displacement relative to the cylinder. A plurality of embodiments of the device are disclosed with one disclosed embodiment including a cable wound about a pulley mounted on the rotatable control shaft of the variable resistor with the cable having one end fastened to the piston rod and a retraction spring to maintain the cable taut regardless of piston displacement in either axial direction. The other disclosed embodiments include a linear resistant element mounted on either the cylinder or the piston rod with a wiper arm engaging the resistance element so that the effective resistance is varied depending upon the amount of piston rod displacement relative to the cylinder and a cylinder mounted pivotable first rod pivoted by a second rod mounted on the piston rod so that pivoting of the first rod in one direction causes a finger to be pivoted to rotate the control shaft of a variable resistor to thus vary the effective resistance of the resistor.

摘要翻译： 公开了一种位移测量装置，其特别用于测量和远程地指示活塞杆相对于地球工作装置的动力致动器的气缸的位移。 该装置包括由与活塞杆连接的无齿轮致动器控制的可变电阻器，使得电阻器的有效电阻根据活塞杆相对于气缸的轴向位移而变化。 指示器通过电路与可变电阻器相连，以显示相对于气缸的活塞杆位移量。 公开了该装置的多个实施例，其中一个公开的实施例包括缠绕在安装在可变电阻器的可旋转控制轴上的滑轮上的电缆，电缆具有一端固定到活塞杆上，并且回缩弹簧用于保持电缆拉紧 无论在任何轴向方向上的活塞位移。 其他公开的实施例包括安装在气缸或活塞杆上的线性阻力元件，其具有与电阻元件接合的刮水器臂，使得有效阻力根据相对于气缸的活塞杆位移量而变化， 第一杆由安装在活塞杆上的第二杆枢转，使得第一杆在一个方向上的枢转使得手指枢转以旋转可变电阻器的控制轴，从而改变电阻器的有效电阻。

公开(公告)号：US09234735B2

公开(公告)日：2016-01-12

申请号：US14406693

申请日：2013-06-04

申请人： Control Products, Inc.

发明人： Richard O. Glasson

IPC分类号： G01D11/24 ,  G01D5/00 ,  G01F15/14 ,  G01F3/20 ,  G01B7/00 ,  G01B3/11 ,  F15B15/28 ,  F15B15/20

CPC分类号： G01B7/003 ,  F15B15/20 ,  F15B15/283 ,  F15B15/2892 ,  F15B2201/31 ,  F15B2201/515 ,  G01B3/11 ,  G01D11/245 ,  Y10T29/49002

摘要： A linear position sensing system includes a sensor, a conduit and an enclosure. The sensor has a connector and a converting element, where the connector includes a first end attached to the converting element and a second end that passes through the conduit and is configured for attachment to a moveable element of an external device. The enclosure houses the sensor. The conduit includes a first end fitting that is attached to the enclosure and a second end fitting that is affixed at a port or other aperture of the external device. The second end of the connector is configured to be inserted in the port other aperture and attached to the moveable element without disassembly of the external device.

摘要翻译： 线性位置感测系统包括传感器，导管和外壳。 传感器具有连接器和转换元件，其中连接器包括连接到转换元件的第一端和穿过导管的第二端，并被配置为附接到外部设备的可移动元件。 外壳内装有传感器。 导管包括附接到外壳的第一端配件和固定在外部设备的端口或其他孔径处的第二端配件。 连接器的第二端构造成插入其他孔的端口并附接到可移动元件而不拆卸外部装置。

公开(公告)号：US20150184990A1

公开(公告)日：2015-07-02

申请号：US14406693

申请日：2013-06-04

申请人： Control Products, Inc.

发明人： Richard O. Glasson

IPC分类号： G01B7/00 ,  G01D11/24 ,  F15B15/20

CPC分类号： G01B7/003 ,  F15B15/20 ,  F15B15/283 ,  F15B15/2892 ,  F15B2201/31 ,  F15B2201/515 ,  G01B3/11 ,  G01D11/245 ,  Y10T29/49002

摘要： A linear position sensing system includes a sensor, a conduit and an enclosure. The sensor has a connector and a converting element, where the connector includes a first end attached to the converting element and a second end that passes through the conduit and is configured for attachment to a moveable element of an external device. The enclosure houses the sensor. The conduit includes a first end fitting that is attached to the enclosure and a second end fitting that is affixed at a port or other aperture of the external device. The second end of the connector is configured to be inserted in the port other aperture and attached to the moveable element without disassembly of the external device.

摘要翻译： 线性位置感测系统包括传感器，导管和外壳。 传感器具有连接器和转换元件，其中连接器包括连接到转换元件的第一端和穿过导管的第二端，并被配置为附接到外部设备的可移动元件。 外壳内装有传感器。 导管包括附接到外壳的第一端配件和固定在外部设备的端口或其他孔径处的第二端配件。 连接器的第二端构造成插入其他孔的端口并附接到可移动元件而不拆卸外部装置。

公开(公告)号：US06763916B2

公开(公告)日：2004-07-20

申请号：US10123083

申请日：2002-04-12

申请人： Steven D. Green ,  David P. Porter

发明人： Steven D. Green ,  David P. Porter

IPC分类号： B66B104

CPC分类号： F15B11/22 ,  B66F7/20 ,  F15B9/17 ,  F15B15/283

摘要： A vehicle lift control maintains multiple points of a lift system within the same horizontal plane during vertical movement of the lift engagement structure by synchronizing the movement thereof. A vertical trajectory is compared to actual positions to generate a raise signal. A position synchronization circuit synchronizes the vertical actuation of the moveable lift components by determining a proportional-integral error signal.

摘要翻译： 在电梯接合结构的垂直运动期间，通过使其升降机构的运动同步，车辆升降控制器在同一水平面内保持升降系统的多个点。 将垂直轨迹与实际位置进行比较以产生升高信号。 位置同步电路通过确定比例积分误差信号来同步可移动提升部件的垂直致动。

公开(公告)号：US20030029310A1

公开(公告)日：2003-02-13

申请号：US10268527

申请日：2002-10-10

发明人： Richard O. Glasson

IPC分类号： F01B025/26

CPC分类号： F15B15/283 ,  G05D5/02 ,  H01R13/521

摘要： A high pressure seal assembly provides an electrical path between the sensor and an external connector.

摘要翻译： 高压密封组件在传感器和外部连接器之间提供电气路径。

公开(公告)号：US4969274A

公开(公告)日：1990-11-13

申请号：US255843

申请日：1988-10-11

申请人： Fu-Rong Chang

发明人： Fu-Rong Chang

IPC分类号： F15B15/28 ,  G05B19/23

CPC分类号： G05B19/23 ,  F15B15/283 ,  G05B2219/41301 ,  G05B2219/49291

摘要： A displacement measuring and remote control apparatus includes a sheave having a helical groove therein, a flexible belt wound on the sheave along the helical groove and connected securely to a movable member, an azimuth identification device connected to the sheave for indicating the rotational angle of the sheave. The rotational angle of the sheave can be realized by the azimuth identification device so that it may be converted into the displacement of the movable member. The belt is continually tensed by a tensing device. The apparatus can be used in a hydraulic servo system for the purpose of remotely controlling the movement of a hydraulic driving unit and a driven body.

摘要翻译： 位移测量和遥控装置包括其中具有螺旋槽的滑轮，沿着螺旋槽卷绕在滑轮上的柔性带，并且牢固地连接到可动构件，连接到滑轮的方位识别装置，用于指示旋转角度 滑轮 滑轮的旋转角度可以由方位识别装置实现，从而可以将其转换成可移动部件的位移。 皮带由拉紧装置不断拉紧。 该装置可以用于液压伺服系统中，用于远程控制液压驱动单元和从动体的运动。

公开(公告)号：US08448563B2

公开(公告)日：2013-05-28

申请号：US12201137

申请日：2008-08-29

申请人： René Wenker ,  Daniel Gagné

发明人： René Wenker ,  Daniel Gagné

IPC分类号： F01B25/04

CPC分类号： F15B15/2892 ,  F15B15/283 ,  F15B15/2861 ,  F15B15/2876 ,  F15B15/2884

摘要： A fluid-powered actuator comprises a cylindrical body having a base proximate one extremity and a head proximate another extremity, a piston-rod assembly and a sensor module made of a removable cover and a position sensor. The piston-rod assembly is slidably mounted inside the cylindrical body. The base is provided with an opening adapted to accommodate the sensor therethrough. In operation, the cover seals the opening. The position sensor is mounted to an internal face of the cover so that the position sensor is operatively located inside the cylindrical body when the cover is in place. The position sensor is operative to measure a position of the piston-rod assembly. A sensor module adapted to sealably close the opening in the base comprises the position sensor mounted to an internal face of a cover structure. In operation, the position sensor is operatively located inside the actuator when the cover structure closes the opening.

摘要翻译： 流体动力致动器包括圆柱体，其具有靠近一个末端的基部和靠近另一个末端的头部，活塞杆组件和由可移除的盖和位置传感器构成的传感器模块。 活塞杆组件可滑动地安装在圆柱体内。 底座设置有适于容纳传感器的开口。 在操作中，盖子密封开口。 位置传感器安装到盖的内表面，使得当盖处于适当位置时位置传感器可操作地位于圆筒体内。 位置传感器用于测量活塞杆组件的位置。 适于密封地封闭基座中的开口的传感器模块包括安装到盖结构的内表面的位置传感器。 在操作中，当盖结构关闭开口时，位置传感器可操作地位于致动器内部。