Initiative and passive combined pressure stabilizing device
A voltage stabilization device, active and passive technology, applied in the direction of fluid pressure actuation device, fluid pressure actuation system components, servo motors, etc., can solve the problems of low voltage stabilization accuracy, poor adaptability to working conditions, complex control, etc. The effect of pressure stability accuracy, reducing difficulty, and widening the applicable pressure fluctuation range
Active Publication Date: 2019-09-24
YANSHAN UNIV
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Problems solved by technology
[0004] In view of the above technical problems, the object of the present invention is to introduce the passive and active voltage stabilization method into the hydraulic control system of the electro-hydraulic actuator, overcome the problems of low voltage stabilization accuracy, poor adaptability to working conditions, and complicated control of the traditional voltage stabilization method, and realize The effect of the hydraulic system to better stabilize the pressure
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[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments.
[0018] In describing the present invention, it is to be understood that the terms "radial", "axial", "upper", "lower", "top", "bottom", "inner", "outer" etc. indicate orientation Or the positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation , and the...
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The invention discloses an initiative and passive combined pressure stabilizing device and belongs to the technical field of electric hydraulic control. By means of the initiative and passive combined pressure stabilizing device, a hydraulic passive damping element and vibration eliminating valves capable of achieving active control are installed between a vibration exciting source and a load at the same time, an active manner and a passive manner are combined for achieving the pressure stabilizing function, and the problems that the pressure stabilizing precision is low, the work condition adaptability is poor and control is complex in previous pressure stabilizing methods are solved. The passive damping element can absorb pressure pulses and pressure impacts under simple work conditions generated at the vibration exciting source, the pressure stabilizing precision is low, when the passive pressure stabilizing manner cannot reach the required pressure stabilizing effect, a controller controls the vibration eliminating valves, namely a flow inlet valve and a diversion valve to work according to feedback signals of a sensor, the oil liquid flowing state in a pipeline is rapidly and accurately adjusted, and stable control over system pressure is further achieved. The active and passive combined pressure stabilizing device has the beneficial effects that parameters are variable, work condition adaptability is high, and a control method is relatively simple.
Description
technical field [0001] The invention relates to the technical field of electro-hydraulic control, in particular to an active-passive combination voltage stabilizing device. Background technique [0002] When the conventional hydraulic system is working, due to the characteristics of the hydraulic components, the pressure fluctuations in the hydraulic system will not only bring noise and vibration, affect the control accuracy, but also greatly reduce the safety of the system. [0003] At present, with the increasing requirements for the accuracy, reliability, environmental protection and safety of mechanical structure motion control in aerospace and traditional industries, reducing the pressure fluctuation in the hydraulic system and realizing the stable output of pressure are of great significance to improving the performance of the hydraulic system. Significance. Existing pressure fluctuation suppression methods include passive and active methods, each with its own charact...
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IPC IPC(8): F15B1/04F15B11/08F15B13/02F15B21/12
CPCF15B1/04F15B11/08F15B13/022F15B21/12
Inventor 姚静杨帅蒋东廷尹钰鑫张建启
Owner YANSHAN UNIV