Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Low-power-consumption flow self-adaptive hydraulic position closed-loop control system and method

An adaptive control, closed-loop control technology, applied in the safety of fluid pressure actuation system, fluid pressure actuation system components, fluid pressure actuation device, etc. Poor pollution ability, etc.

Pending Publication Date: 2020-08-28
CHINA NAT HEAVY MACHINERY RES INSTCO
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the large flow adjustment range and fast response of the servo valve (proportional valve), the system has poor anti-pollution ability, high failure rate and high power consumption; such as the Chinese patent application number: 201310417622X structure hydraulic position closed-loop control system, its position closed-loop control is controlled by Servo valve control can realize accurate position control at low speed and high speed, but this kind of position closed-loop control adopts the form of servo valve. Due to the disadvantages of poor anti-pollution ability, complicated control, high failure rate and expensive price of servo valve, it is not suitable for use. Occasions with higher reliability, simpler structure, more convenient operation and maintenance, and lower cost

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Low-power-consumption flow self-adaptive hydraulic position closed-loop control system and method
  • Low-power-consumption flow self-adaptive hydraulic position closed-loop control system and method
  • Low-power-consumption flow self-adaptive hydraulic position closed-loop control system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] refer to figure 1 , is a structural schematic diagram of Embodiment 1 of the present invention, a low-power flow adaptive hydraulic position closed-loop control system, which is characterized in that it includes a decompression energy storage filter unit 16, an emergency shutdown unit 17, a hydraulic closed-loop control unit 18 and an execution One end of the decompression energy storage filter unit 16 communicates with the hydraulic station through the oil pipeline, and one end of the emergency shutdown unit 17 and the hydraulic closed-loop control unit 18 are connected in parallel on the other end oil pipeline of the decompression energy storage filter unit 16 , the other end of the emergency shutdown unit 17 and the hydraulic closed-loop control unit 18 communicate with the actuator unit 19 through the oil pipeline.

[0032] The further decompression energy storage filter unit 16 is used for the decompression and filtration of hydraulic pressure oil and the supply of...

Embodiment 2

[0034]Compared with Embodiment 1, the difference of this embodiment is that one end of the decompression energy storage filter unit 16 is provided with an oil inlet P1 and an oil return port T1, and the other end of the decompression energy storage filter unit 16 is provided with Oil port P and oil port T, one end of the emergency closing unit 17 is provided with oil port P and oil port T, and the other end of the emergency closing unit 17 is provided with oil port A, oil port B and oil port A1 and oil port B1, hydraulic pressure One end of the closed-loop control unit 18 is provided with an oil port P and an oil port T, the other end of the hydraulic closed-loop control unit 18 is provided with an oil port A and an oil port B, and one end of the actuator unit 19 is provided with an oil port A and an oil port B, The hydraulic station is provided with a pressure oil port P' of the hydraulic station and an oil return port T' of the hydraulic station. The oil inlet P1 of the decom...

Embodiment 3

[0036] refer to figure 2 Compared with Embodiment 2, the difference of this embodiment is that the decompression energy storage filter unit 16 includes a three-way decompression valve 10, a filter 11, a one-way valve 401, a first ball valve 501, a first Two ball valves 502, an accumulator 12 and a first relief valve 601, one end of the three-way pressure reducing valve 10 communicates with the pressure oil port P' of the hydraulic station and the oil return port T' of the hydraulic station through the oil pipeline, and the three-way decompression The other end of the valve 10 communicates with one end of the filter 11 through the oil pipeline, the other end of the filter 11 communicates with one end of the check valve 401 through the oil pipeline, and the other end of the check valve 401 communicates with one end of the first ball valve 501 through the oil pipeline. The other end of the ball valve 501 communicates with the second ball valve 502 and one end of the first relief...

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

No PUM Login to View More

Abstract

The invention relates to the field of molten steel smelting and forming, in particular to a low-power-consumption flow self-adaptive hydraulic position closed-loop control system and method. A decompression energy storage filtering unit, an emergency closing unit, a hydraulic closed-loop control unit and an actuator unit are used, four sets of structurally and functionally identical pilot-operatedtype high-frequency-response flow self-adaptive control units in the hydraulic closed-loop control unit are adopted for replacing an existing servo valve (proportional valve) to control the positionof a stopper hydraulic cylinder, and poor anti-pollution capacity, a high failure rate, high power consumption, a high price and other defects of a system due to the traditional adoption of a servo valve (proportional valve) are overcome. Meanwhile, the pilot-operated type high-frequency-response flow self-adaptive control units are adopted, speed stepless regulation of the stopper hydraulic cylinder can be achieved under low speed and high speed, and the position of the stopper hydraulic cylinder can be controlled accurately. The low-power-consumption flow self-adaptive hydraulic position closed-loop control system and method have the advantages of being high in reliability, simple in structure, large in flow regulation range, low in power consumption, low in cost and the like.

Description

technical field [0001] The invention relates to the field of molten steel smelting and forming, in particular to a low power consumption flow adaptive hydraulic position closed-loop control system and method. Background technique [0002] In the field of molten steel smelting and forming, the closed-loop control of the position of the stopper rod hydraulic cylinder adopts the control type of servo valve (proportional valve). Precise position control. [0003] Due to the large flow adjustment range and fast response of the servo valve (proportional valve), the system has poor anti-pollution ability, high failure rate and high power consumption; such as the Chinese patent application number: 201310417622X structure hydraulic position closed-loop control system, its position closed-loop control is controlled by Servo valve control can realize accurate position control at low speed and high speed, but this kind of position closed-loop control adopts the form of servo valve. Due...

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
no application Login to View More
IPC IPC(8): F15B11/12F15B13/10F15B13/14F15B15/28F15B1/02F15B20/00F15B21/00F15B21/041F15B21/08
CPCF15B1/02F15B11/121F15B11/126F15B13/10F15B13/14F15B15/2815F15B20/00F15B21/001F15B21/041F15B21/08F15B2211/6336F15B2211/655F15B2211/6656F15B2211/875F15B2211/895
Inventor 丘铭军焦悦郭星良雷丛卉郭佳王亚强赵春丽
Owner CHINA NAT HEAVY MACHINERY RES INSTCO
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com