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JPS6286401U |
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JPS62118101A |
PURPOSE:To achieve a highly accurate control by arranging a hydraulic cylinder unit between a supporting member arranged with a driving cylinder unit and a driven member, and controlling the speed and the position hydraulically. CONSTITU...
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JPS62113901A |
PURPOSE:To improve control ability by continuously controlling according to a pseudo pressure target value when abnormality is caused in position feedback control. CONSTITUTION:There is provided position-pressure target value converting ...
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JPS6219471Y2 |
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JPS6274948U |
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JPS6274949U |
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JPS6274950U |
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JPS6298001A |
PURPOSE:To enable the accurate adjustment of the stroke of a hydraulic cylinder which is connected to a hydraulic pump, by detecting the position of a motor connected to a hydraulic pump to control it. CONSTITUTION:When a motor 2 is turn...
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JPS6291105A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS6290449A |
PURPOSE: To raise the followability and accuracy of a power shovel by using a system in which the first insensitive zone to be varied with the number of engine revolutions and the pressure of oil-pressure circuit is put out by a compensa...
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JPS6265511U |
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JPS6288802A |
PURPOSE:To simply the structure of a fluid control device by connecting a discharging branch pipe between a pressure fluid supply source and an actuator, and disposing proportional solenoid valves with valve lap changing means upstream o...
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JPS6283501A |
PURPOSE:To enable the accurate positioning of an operational valve to be carried out, by feeding back the actual position of the operational valve to the nozzle of a nozzle flapper, and moving the nozzle. CONSTITUTION:When an operational...
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JPS6283502A |
PURPOSE:To make an electric power supply wiring for a light controlled positioner unnecessary, by rotating a fan connected to a generator motor with an air pressure which is supplied from an air supply pipe, and utilizing the electric po...
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JPS6262307U |
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JPS6216859B2 |
A hydraulic system in which pressurized fluid fed from a hydraulic pump is distributed through a distributor valve, on one part to a hydraulic booster for a brake and on the other part to a power steering unit or other hydraulic device. ...
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JPS6216858B2 |
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JPS6280303A |
PURPOSE:To shorten the time with which a piston is attained to the desired position, in case that the dislocation amount between the desired position and the actual position is over the predetermined value, by outputting the continuous v...
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JPS6275104A |
PURPOSE:To carry out the action control of a working machine, by detecting the parameter variation of a controlled object, and correcting a controlling instruction value for a hydraulic valve based on the intended input of the working ma...
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JPS6275103A |
PURPOSE:To simplify the structure of an electropneumatic positioner by converting the displacement of a valve stem into the feedback signal of voltage so as to balance the signal with the output of an input processing means, and converti...
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JPS6275105A |
PURPOSE:To improve the working precision of a working machine, by detecting the internal factor of a control system influencing the working precision of the working machine based on the working length of the cylinder of the machine by ca...
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JPS6275106A |
PURPOSE:To carry out the action control of a working machine without time lag, by controlling it with feeding back by the variation of the internal factor of a control system influencing the working precision of the machine. CONSTITUTION...
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JPS6212648Y2 |
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JPS6213522B2 |
Two embodiments of closed loop electro-fluidic controlled systems are disclosed for controlling the velocity, acceleration, torque, force or pressure applied to the member. The system includes a source of electrical command signals corre...
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JPS6267303A |
PURPOSE:To improve the accuracy of valve positioning through the simplified constitution of an electro-pneumatic valve positioner by converting the displace ment of a valve into an air pressure signal so as to cause a flapper to be dis p...
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JPS6267304A |
PURPOSE:To enable the numerical control of a digital valve to be performed with high accuracy by generating a frequency signal corresponding to the magnitude of a difference between an input indicating signal and a feedback signal, and t...
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JPS6267305A |
A hydraulic driving device includes a working cylinder for moving a machine component, and an electro-hydraulic servo system. The servo system includes a servo-valve, a position-error control, a circuit for emulating speed and accelerati...
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JPS6244103U |
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JPS6258913A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS6254641A |
PURPOSE: To make a solenoid brake operate at the desired braking timing according to the speed of a slide table, by installing a rotary encoder being interlocked with a feed screw of the side table and detecting rotation of the feed scre...
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JPS6254642A |
PURPOSE: To make the stroke of a slide table possible to be doubled, by installing two sprockets set up at both ends of a cylinder and also a driving device rolled on these sprockets. CONSTITUTION: Each of sprockets 7a and 7b is installe...
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JPS6210870B2 |
A flow volume control device for a power assisted steering device having a main control valve device, whose main valve spool is movable to establish the communication of an inlet passage with a bypass passage when the flow rate of pressu...
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JPS6238968U |
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JPS6252201A |
PURPOSE:To reduce the cost by providing a permanent magnet and a magnetic resistance element on the respective shaft ends of the first rotary shaft connected to a hydraulic cylinder and the second rotary shaft connected to a stepping mot...
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JPS629736B2 |
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JPS6232511U |
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JPS6232202U |
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JPS6230002U |
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JPS6235101A |
PURPOSE:To make a structure simple and small-sized and improve positioning accuracy by using a solenoid with its plunger moving up and down, installing a controller under the solenoid so as to position the controller and the solenoid abo...
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JPS6235102A |
PURPOSE:To make simple structure and improve precision by using a solenoid with its plunger moving up and down and installing a controller under the solenoid so as to conform each motion of an air actuator, the solenoid and the controlle...
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JPS6235103A |
PURPOSE:To improve reliability and durability and simplify handling for the mechanism in the headline by controlling the opening of an air nozzle by means of a rotary cam with protrusions designed to set the smallest and largest openings...
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JPS6231765A |
PURPOSE:To make it possible to stop the movement of a hydraulic actuator caused by a discrepancy on a control system by executing a position control when a speed command signal is zero and the speed of a hydraulic actuator is less than t...
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JPS624561B2 |
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JPS6220901A |
PURPOSE:To improve the extent of responsiveness, by connecting a valve driving pressure chamber directly to a pneumatic source and the atmosphere when the absolute value of deviation is larger than the specified value, and leading a puls...
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JPS6213204U |
An apparatus for controlling a hydraulic single acting cylinder has first and second solenoid operated valves disposed in a supply line through which a working fluid is supplied to a working chamber defined in the cylinder which a piston...
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JPS6217450A |
PURPOSE:To suppress the overshoot of a shifting force while increasing the response of controlling stroke by providing a means of limiting the initial pressure of a hydraulic actuator. CONSTITUTION:The pressure flow of a hydraulic cylind...
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JPS6217401A |
PURPOSE:To improve responsibility and control accuracy by loading a feedback control circuit later than a feedforward control circuit for any amount of time at the time of switching the control amount. CONSTITUTION:A switching unit 28 is...
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JPS622986Y2 |
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JPS6213801A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS622272Y2 |
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