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    • 5. 发明申请
    • PIEZOELECTRIC ACTUATOR, MOTOR, ROBOT, AND METHOD OF DRIVING PIEZOELECTRIC ACTUATOR
    • 压电致动器,电机,机器人及驱动压电致动器的方法
    • US20170005596A1
    • 2017-01-05
    • US15194943
    • 2016-06-28
    • Seiko Epson Corporation
    • Tomoaki TAKAHASHI
    • H02N2/00B25J17/00B25J9/12
    • H02N2/0075B25J9/123B25J15/0293H02N2/004H02N2/026H02N2/103
    • The invention relates to a piezoelectric actuator including: a first piezoelectric vibrator including a first diaphragm and first piezoelectric elements that are provided on the first diaphragm and include a first electrode, a second electrode, and a piezoelectric material layer held by the first electrode and the second electrode; a second piezoelectric vibrator including a second diaphragm and second piezoelectric elements that are provided on the second diaphragm and include a first electrode, a second electrode, and a piezoelectric material layer held by the first electrode and the second electrode; and an inductor. The layout of the first piezoelectric vibrator in the first diaphragm is the same as the layout of the second piezoelectric vibrator in the second diaphragm. The positions of the first piezoelectric elements on the first diaphragm correspond to the positions of the second piezoelectric elements on the second diaphragm. The second electrode of the first piezoelectric elements corresponds to the second electrode of the second piezoelectric elements. The corresponding second electrodes are connected via the inductor.
    • 本发明涉及一种压电致动器,包括:第一压电振动器,包括第一膜片和第一压电元件,所述第一压电元件设置在第一膜片上,并且包括第一电极,第二电极和由第一电极保持的压电材料层, 第二电极; 第二压电振子,包括设置在所述第二振膜上的第二振动膜和第二压电元件,并且包括由所述第一电极和所述第二电极保持的第一电极,第二电极和压电材料层; 和电感器。 第一隔膜中的第一压电振动器的布局与第二隔膜中的第二压电振动器的布局相同。 第一隔膜上的第一压电元件的位置对应于第二隔膜上的第二压电元件的位置。 第一压电元件的第二电极对应于第二压电元件的第二电极。 相应的第二电极通过电感器连接。
    • 6. 发明申请
    • MOTION BASE WITH CONTROLLED ACTUATORS
    • 运动座与控制执行器
    • US20160167224A1
    • 2016-06-16
    • US14566271
    • 2014-12-10
    • Oceaneering International, Inc.
    • Samuel T. FosterEric A. KingStephen F. FromyerStephen Sywak
    • B25J9/12G05B11/01F16H25/20
    • B25J9/123A63G31/06F16H25/20G05B11/011G09B9/12
    • A motion base comprises lower and upper plates, a plurality of lateral stabilizers coupled in-between and connected to the lower and upper plates, a plurality of actuators, and one or more associated active controllers. Actuators typically comprise a body operatively connected to the upper plate and the lower plate, a rod movably disposed at least partially within the body, where the rod and body define an actuator effective length; and a controllable rod extender configured to selectively extend the rod out from and retract the rod into the body. After determining a desired parameter such as length and an actual parameter such as length, velocity, acceleration, impulse, force, or the like, or a combination thereof for each of the plurality of actuators, a control signal is sent to each controllable rod extender as needed to change the current effective state of that parameter of each actuator by moving each such actuator's extendable rod into or out from each such actuator's body such that the current parameter for each of the plurality of actuators matches the desired parameter for that actuator.
    • 运动基座包括下板和上板,耦合在其中并连接到下板和上板之间的多个横向稳定器,多个致动器以及一个或多个相关联的主动控制器。 致动器通常包括可操作地连接到上板和下板的主体,至少部分地可移动地设置在主体内的杆,其中杆和主体限定致动器的有效长度; 以及可控制的杆延伸器,其构造成选择性地将杆伸出并将杆缩回到主体中。 在确定多个致动器中的每个的长度和实际参数(诸如长度,速度,加速度,脉冲,力等)或其组合的期望参数之后,将控制信号发送到每个可控制的扩展器 根据需要通过将每个这样的致动器的可延伸杆移动到每个这样的致动器本体中或从每个这样的致动器本体移出来改变每个致动器的该参数的当前有效状态,使得多个致动器中的每一个的每个的当前参数匹配该致动器的期望参数。
    • 10. 发明申请
    • MILKING ROBOT
    • US20180116172A1
    • 2018-05-03
    • US15797530
    • 2017-10-30
    • Lely Patent N.V.
    • Dirk KraaijMichiel Brevet
    • A01K1/12B25J9/16A01J5/003
    • A01K1/12A01J5/003A01J5/017B25J9/046B25J9/123B25J9/144B25J9/1633B25J19/0012B25J19/0016G05B2219/45113Y10S901/02
    • Milking robot device for automatically milking a dairy animal, comprising a milking box having milking cups and a robot arm having an end effector for applying the milking cups to the teats of the dairy animal, on which milking box the robot arm is suspended above the dairy animal to be milked. The robot arm comprises a first arm part connected to the milking box by a first joint, and a second arm part connected to the first arm part by a second joint and provided with an end effector. The first and second arm part, respectively, is pivotable in a vertical plane with respect to the milking box and the first arm part, respectively, by a first and second actuator, respectively. The end effector is movable within an operating range by the robot arm. The milking robot comprises a weight compensation device having a spring device between the milking box and the robot arm. This is configured to exert a first torque about the first joint and a second torque about the second joint, in such a way that, viewed over the operating range, the first torque compensates for the torque exerted by gravity on the arm about the first joint by at least half, in particular by at least 90%, and the second torque compensates for the torque exerted by gravity on the arm about the second joint by at least half, in particular by at least 90%. Consequently, a compact robot arm is provided, the joints which are suspended relatively high up can be protected from dirt in an efficient manner, and they can be operated using much lighter actuators, so that a great deal of energy can also be saved.