Hydraulic actuator and method of discontinuously varying the position output of a hydraulic actuator
A drive and hydraulic pressure technology, which is applied in the direction of fluid pressure actuators, servo motors, servo meter circuits, etc., can solve the problems of servo drive stability, increase failure, and increase costs, so as to improve energy efficiency and reduce cost, effect of increasing accuracy
Active Publication Date: 2018-01-12
机械电子装置林茨中心有限公司
View PDF10 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The disadvantage is that a relatively large number of positive displacement cylinders is required for such actuating drives, which increases the structural complexity and thus costs of such actuating drives, especially if a high resolution of the stroke output is required
In addition, due to the large number of positive displacement cylinders, the probability of failure increases, which in turn affects the stability of the servo drive
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0036] According to figure 1 The hydraulic drive 1 shown in the schematic view of the hydraulic drive provides or produces on its drive mechanism 202 or drive cylinder 2 a changed position output 3 in the form of a linear stroke output with two digital input signals 4,5 so that these encoded input signals 4,5 are transformed into discrete position outputs 3 . Since the positive displacement cylinders 6, 7 are actuated with the two digital input signals 4, 5 respectively, by displacing the piston elements 10, 11 from the initial position 12, 13 to the final position 14, 15 (in figure 1 Indicated by dotted lines in ), the positive displacement cylinder either delivers its displacement 8, 9 to the drive cylinder 2 of the driver 1, or discharges the displacement 8, 9 from the drive cylinder.
[0037] The piston elements 10 , 11 are structurally embodied as pistons. In general, a piston rod such as a known plunger cylinder or the like is also conceivable as piston element.
[00...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A hydraulic drive carries out a method for discretely changing a positional output on the hydraulic drive. At least one displacement cylinder incrementally supplies or discharges the cylinder volume to or from the drive by displacing the cylinder piston element from a starting to an end position depending on at least one input signal. The piston element is repeatedly displaced from starting to end position and back to discretely change the positional output correspondingly to the supplied or discharged displacement volume. The cylinder is hydraulically connected to a pressure medium source supply or return line while displacing the piston element from starting to end position. The changed positional output is restored in a successive step. The cylinder chambers of the displacement cylinder are hydraulically short-circuited by a short-circuit line hydraulically separated from the supply or return line when returning the piston element from the end to the starting position.
Description
technical field [0001] The invention relates to a hydraulic drive and a method for discontinuously varying the position output, in particular its stroke output and / or angular output, on a hydraulic drive, in which method, dependent on at least one input signal, at least one positive displacement cylinder The drive is incrementally supplied with its displacement by moving its piston element from the initial position to the final position, or the displacement is incrementally removed from the drive, wherein the piston element of the positive displacement cylinder is repeatedly The initial displacement to the final position and back from the final position in order to discontinuously change the position output on the drive according to the displacement delivered or discharged, wherein, after the piston element is displaced from the initial position to In the final position, the positive displacement cylinder is hydraulically connected to the supply or return line of the pressure...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): F15B11/13
CPCF15B11/13F15B2211/30565F15B2211/30575F15B2211/405F15B2211/41527F15B2211/455F15B2211/46F15B2211/7052F15B2211/7656
Inventor 鲁道夫·沙伊德尔安德烈亚斯·普洛金格克里斯托夫·格拉德尔
Owner 机械电子装置林茨中心有限公司