CN103307335A - Direction control valve braking method - Google Patents
Direction control valve braking method Download PDFInfo
- Publication number
- CN103307335A CN103307335A CN2013102296176A CN201310229617A CN103307335A CN 103307335 A CN103307335 A CN 103307335A CN 2013102296176 A CN2013102296176 A CN 2013102296176A CN 201310229617 A CN201310229617 A CN 201310229617A CN 103307335 A CN103307335 A CN 103307335A
- Authority
- CN
- China
- Prior art keywords
- control valve
- direction control
- digital amplifier
- integrated digital
- braking method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Regulating Braking Force (AREA)
- Steering Control In Accordance With Driving Conditions (AREA)
Abstract
The invention discloses a direction control valve braking method which comprises the steps as follows: collecting a turn angle signal of a direction control valve by an integrated digital amplifier at first, then amplifying the turn angle signal by the integrated digital amplifier, and feeding back a position signal of a liquid level sensor in an oil cylinder at the same time to achieve closed-loop control; and detecting the flow speed of liquid flowing through the direction control valve, feeding back the flow speed to the integrated digital amplifier, and correcting a turn angle of a steering motor of the direction control valve. According to the direction control valve braking method, the shortage of the control of an electronic mechanical shaft is made up for, the property of a hydraulic technology is improved at the same time, namely the power density is higher, the energy storage and natural overload protection functions are achieved, the mechanical wear is low, the service life of equipment is longer, and the linear movement can be directly realized.
Description
Technical field
The present invention relates to a kind of braking method of position control valve, belong to hydraulic machinery control technique field.
Background technique
Position control valve, owing to itself belonging to the category of machinery, so in the process of control, often adopt the mode of axle control, because the validity of current controlling method (axle control) is difficult to be guaranteed, also just restricted the further lifting of position control valve in its application performance.
Society is digitized electronic equipment fully and drives: computer, and automatic system, automobile, Aero-Space, telecommunications, and the advanced networks technology all is based upon on the Digital Technique.Compare Digital Technique with the simulation technology and have more typical advantage: faster stronger data-handling capacity, the programmability of more simplifying, anti-electromagnetic noise interference performance, signal are processed and data storing.
Because digital electronic control technology is easy to control, easy to use, and with good compatibility is arranged between all kinds of ECU (Electrical Control Unit), can be with interface, the performance standard of mechanical/electrical subset, so in nearly ten years, this technology is successfully accepted by each industrial automation, and is widely used in the axle movement control technology.
The numeral of novelty axially control technique has now possessed higher validity, and the easy programming that repeatability and every field are used has guaranteed to be easier to R and M simultaneously.
Recently to the development of CMOS technology and new DSP processing unit so that Digital Electronic Technique and ratio electro-hydraulic be integrated into possibility.
So in sum, can control more accurately the direction control valve by advanced person's control technique, be technical problem to be solved by this invention.
Summary of the invention
The braking method that the purpose of this invention is to provide a kind of position control valve is realized accurate control to the direction control valve with the method for modern digital control.
Purpose of the present invention is come specific implementation by the following technical programs:
The braking method of position control valve, at first gather the steering angle signal of position control valve by the integrated digital amplifier, then amplify by the integrated digital amplifier, simultaneously the position signal of the liquid level sensor of oil cylinder inside fed back, realize closed loop control; Again detect the flow velocity of the position control valve of flowing through, feed back to the integrated digital amplifier, and then the corner of the steer motor of direction control valve is revised.
Describedly also for adopting the mode of wireless transmission, sensor docks with the integrated digital amplifier.
Pipeline in described position control valve position is provided with velocity transducer.
The braking method of position control valve of the present invention; remedied the deficiency of electric mechanical axle control; increased simultaneously the characteristic of hydraulics: higher power density; have energy reserve ability and essential type overburdening protective value; low mechanical wear; service life of equipment is longer, can directly realize linear motion.
Embodiment
The braking method of the described position control valve of the embodiment of the invention, at first gather the steering angle signal of position control valve by the integrated digital amplifier, then amplify by the integrated digital amplifier, simultaneously the position signal of the liquid level sensor of oil cylinder inside fed back, realize closed loop control; Again detect the flow velocity of the position control valve of flowing through, feed back to the integrated digital amplifier, and then the corner of the steer motor of direction control valve is revised.
Describedly also for adopting the mode of wireless transmission, sensor docks with the integrated digital amplifier.
Pipeline in described position control valve position is provided with velocity transducer.
Described integrated digital amplifier carries out the AD conversion to the steering angle signal.
The braking method of position control valve of the present invention; remedied the deficiency of electric mechanical axle control; increased simultaneously the characteristic of hydraulics: higher power density; have energy reserve ability and essential type overburdening protective value; low mechanical wear; service life of equipment is longer, can directly realize linear motion.
Claims (3)
1. the braking method of position control valve, at first gather the steering angle signal of position control valve by the integrated digital amplifier, then amplify by the integrated digital amplifier, simultaneously the position signal of the liquid level sensor of oil cylinder inside fed back, realize closed loop control; Again detect the flow velocity of the position control valve of flowing through, feed back to the integrated digital amplifier, and then the corner of the steer motor of direction control valve is revised.
2. braking method as claimed in claim 1 is characterized in that, describedly also docks with the integrated digital amplifier for sensor adopts the mode of wireless transmission.
3. braking method as claimed in claim 1 is characterized in that, the pipeline in described position control valve position is provided with velocity transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310229617.6A CN103307335B (en) | 2013-06-09 | 2013-06-09 | The braking method of direction control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310229617.6A CN103307335B (en) | 2013-06-09 | 2013-06-09 | The braking method of direction control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103307335A true CN103307335A (en) | 2013-09-18 |
| CN103307335B CN103307335B (en) | 2016-06-08 |
Family
ID=49132874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310229617.6A Expired - Fee Related CN103307335B (en) | 2013-06-09 | 2013-06-09 | The braking method of direction control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103307335B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5873245A (en) * | 1995-07-10 | 1999-02-23 | Hitachi Construction Machinery Co., Ltd. | Hydraulic drive system |
| CN2837642Y (en) * | 2005-10-18 | 2006-11-15 | 中国石油天然气集团公司 | Quick electro-hydraulic actuator with buffer for butterfly valve |
| CN201772119U (en) * | 2010-08-26 | 2011-03-23 | 武汉新芯集成电路制造有限公司 | Automatic adjusting valve |
| CN201916570U (en) * | 2010-09-02 | 2011-08-03 | 南京大得科技有限公司 | Small electric control valve |
| CN202834258U (en) * | 2012-09-17 | 2013-03-27 | 昆山尚达智机械有限公司 | Novel speed control valve |
-
2013
- 2013-06-09 CN CN201310229617.6A patent/CN103307335B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5873245A (en) * | 1995-07-10 | 1999-02-23 | Hitachi Construction Machinery Co., Ltd. | Hydraulic drive system |
| CN2837642Y (en) * | 2005-10-18 | 2006-11-15 | 中国石油天然气集团公司 | Quick electro-hydraulic actuator with buffer for butterfly valve |
| CN201772119U (en) * | 2010-08-26 | 2011-03-23 | 武汉新芯集成电路制造有限公司 | Automatic adjusting valve |
| CN201916570U (en) * | 2010-09-02 | 2011-08-03 | 南京大得科技有限公司 | Small electric control valve |
| CN202834258U (en) * | 2012-09-17 | 2013-03-27 | 昆山尚达智机械有限公司 | Novel speed control valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103307335B (en) | 2016-06-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101804584A (en) | Three-way cutting force measurement instrument for turning and milling processing | |
| CN103307335A (en) | Direction control valve braking method | |
| CN203156063U (en) | Device used for regulating pretightening force of motorized spindle | |
| CN203061901U (en) | Electric spindle with dustproof function of lathe | |
| CN202241294U (en) | Pneumatic gripper for clamping and positioning | |
| CN102744681A (en) | Real-time detecting system for machining of deep groove ball bearings | |
| CN206450800U (en) | A kind of generator property tester | |
| CN201193651Y (en) | Full complement ball bearing without ball installing breach and hole | |
| CN103728073B (en) | Operating mechanism separating brake semiaxis snapping force detection system and detection method thereof | |
| CN102360177A (en) | Electro-hydraulic linear speed servo system | |
| CN203519640U (en) | Acceleration sensor interface circuit | |
| CN206505748U (en) | A kind of servosignal transmission cable | |
| CN203738782U (en) | Lower arm unit of side turning prevention industrial robot | |
| CN205200590U (en) | Bench drill | |
| CN202582566U (en) | Medium and high precision magnetic encoder | |
| CN201969901U (en) | Servo turret for high-accuracy heavy cutting numerically controlled lathe | |
| CN105345061A (en) | Bench drilling machine | |
| CN204886787U (en) | Take equipment of limit switch's gear motor control | |
| CN203304582U (en) | Lathe with lead screw sheaths | |
| CN202533194U (en) | Water pump motor protective temperature inspection device | |
| CN202754745U (en) | Lifting jack | |
| CN203673386U (en) | Electric hydraulic controlled handle | |
| CN203627763U (en) | Gearbox control device capable of achieving downshift protection and bus communication | |
| CN103307338A (en) | Pressure control valve braking method | |
| CN202656063U (en) | Real-time detection system for processing deep groove ball bearing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160608 Termination date: 20170609 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |