CN106286695A - A kind of air spring vibration isolation platform control system - Google Patents
A kind of air spring vibration isolation platform control system Download PDFInfo
- Publication number
- CN106286695A CN106286695A CN201610825015.0A CN201610825015A CN106286695A CN 106286695 A CN106286695 A CN 106286695A CN 201610825015 A CN201610825015 A CN 201610825015A CN 106286695 A CN106286695 A CN 106286695A
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- valve
- air spring
- altitude
- control system
- processor
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- 238000002955 isolation Methods 0.000 title claims abstract description 24
- 238000005273 aeration Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
- F16F15/0232—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means with at least one gas spring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
- F16F15/027—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means comprising control arrangements
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The present invention provides a kind of air spring vibration isolation platform control system, including: at least three altitude valve, it is arranged on described air spring vibration isolation platform, for controlling the height of correspondence position；At least three height sensor, described altitude valve is positioned in the gas circuit of vibration-isolating platform bottom inflation, and air spring is inflated by described altitude valve, for detecting the altitude information of correspondence position vibration-isolating platform；Pressure transducer, for detecting the pressure data of air spring；Analog input mModule；Processor, receives the analog data of Analog input mModule, and changes into digital data, and export to digital output module；Digital output module, for the control to described altitude valve.The present invention is compared with prior art, it is not necessary to be manually monitored levelness and pressure, is realized levelness and the regulation of pressure by system, and carries out self-locking when reaching preset value, and can realize display and the effect of touch control by touch screen.
Description
Technical field
The present invention relates to air spring vibration isolation platform technical field, specifically one be capable of levelness and pressure
Power is inflated the air spring vibration isolation platform adjusted.
Background technology
Air spring vibration isolation platform uses Non-follow control case to operate, and during inflation, needs artificial observation platform to rise feelings
Condition, manual control fills aerofluxus, and cannot monitor air spring air pressure inside and levelness.
Summary of the invention
The present invention be directed to the deficiency of existing air spring vibration isolation platform, it is provided that one can be to air pressure inside and levelness
The air spring vibration isolation platform control system being monitored, and air pressure inside and levelness are adjusted.
The present invention provides a kind of air spring vibration isolation platform control system, for air spring vibration isolation platform, including:
At least three altitude valve, described altitude valve is positioned in the gas circuit of described air spring vibration isolation platform bottom inflation, institute
Stating altitude valve to be inflated air spring, each altitude valve is correspondingly arranged on one group of air spring, is used for controlling corresponding position
The height put, when inflation reaches preset height, then altitude valve automatic blocking；
At least three height sensor, is arranged on described air spring vibration isolation platform, each height sensor corresponding its
In altitude valve arrange, for detecting the altitude information of correspondence position；
Pressure transducer, for detecting the pressure data of air spring；
Analog input mModule, is connected with described pressure transducer, height sensor respectively, for obtaining the pressure of correspondence
Data and altitude information, and it is sent to processor；
Processor, for receiving the analog data of Analog input mModule, and changes into digital data, and output is given
Digital output module；
Digital output module, for receiving the digital data of processor, and controls to arrange on altitude valve loading line
Electromagnetic valve, and then realize control to described altitude valve.
Preferably, highly reaching setting value when height sensor senses, pressure transducer senses N continuous in time T
Secondary detection force value, and force value change is less than xMPa, closes whole electromagnetic valve.Wherein said time T is preferably 0.1-10
Minute；Described N is at least 3；Described x is preferably 0.001.
Preferably, also include touch screen, be connected with described processor, for obtaining the analog data sum of described processor
Word amount data, and corresponding data is shown；
Correspondingly, described processor is additionally operable to analog data is changed into digital data.
Preferably, described touch screen, it is additionally operable to obtain control instruction, and described control instruction is sent to described process
Device.
Preferably, described electromagnetic valve includes the trickle charge valve of parallel connection and fills valve soon:
Trickle charge valve, for inflating at a slow speed described altitude valve；
Fill valve soon, for described altitude valve is carried out fast aeration；
Described trickle charge valve and the described valve that fills soon have different apertures, to control the speed of aeration speed.
Preferably, described trickle charge valve includes three groups, and often one group of altitude valve is inflated by group trickle charge valve.
Preferably, the described valve that fills soon includes three groups, often organizes and fills valve soon and be inflated one group of altitude valve.
Preferably, also include that switch board, described processor, control valve are integrated on described switch board, source of the gas and switch board
On loading line connection, and pressure transducer is set on this loading line.
Preferably, the loading line often organizing altitude valve is provided with a pressure transducer.
Preferably, described height sensor is rod-pulling type sensor.
The present invention is compared with prior art, it is not necessary to being manually monitored levelness and pressure, it is right to be realized by system
Levelness and the regulation of pressure, and self-locking (closing whole electromagnetic valve) is carried out when reaching preset value, and can be by touch screen
Realize display and the effect of touch control.
Accompanying drawing explanation
Fig. 1 is the structural representation of the air spring vibration isolation platform control system of the present invention according to an embodiment
Figure；
Fig. 2 is the theory diagram of air spring vibration isolation platform control system of the present invention.
Detailed description of the invention
As shown in Figure 1-2, the present invention provides a kind of air spring vibration isolation platform control system, puts down for air spring vibration isolation
Platform, including:
At least three altitude valve G1, G2, G3, altitude valve is positioned at the gas circuit of described air spring vibration isolation platform 10 bottom inflation
On, each altitude valve is correspondingly arranged on one group of air spring, wherein altitude valve G1 correspondence air spring A10, altitude valve G2 pair
Answer air spring A20, altitude valve G3 correspondence air spring A30, for controlling the height of three groups of air spring correspondence positions, when filling
Gas reaches preset height, then altitude valve automatic blocking；
At least three height sensor, is arranged on described air spring vibration isolation platform 10, and each height sensor is corresponding
One of them altitude valve is arranged, for detecting the altitude information of correspondence position；
Pressure transducer, for detecting the pressure data of air spring, shows numerical value the most in real time；
Analog input mModule (in Fig. 1, omission processes), is connected with described pressure transducer, height sensor respectively, uses
In obtaining corresponding pressure data and altitude information, and it is sent to processor 21；
Processor 21, for receiving the analog data of Analog input mModule, and changes into digital data, and exports
To digital output module；Preferably, described processor includes analog-to-digital conversion device.
Digital output module (in Fig. 1, omission processes), for receiving the digital data of processor, and controls altitude valve
The electromagnetic valve arranged on loading line, and then realize the control to described altitude valve.
Preferably, highly reaching setting value when height sensor senses, pressure transducer senses N continuous in time T
Secondary detection force value, and force value change is less than a certain predetermined value such as xMPa, closes whole electromagnetic valve, wherein said time
T is preferably 0.1-10 minute；Described N is at least 3；Described x can be set as required, such as, can be 0.01,
0.008,0.006,0.004,0.002,0.001 etc., preferably 0.001.
Preferably, also include touch screen, be connected with described processor, for obtaining the analog data sum of described processor
Word amount data, and corresponding data is shown；
Correspondingly, described processor is additionally operable to analog data is changed into digital data.
Preferably, described touch screen (omits in Fig. 1), is additionally operable to obtain control instruction, and described control instruction is sent
To described processor.
Preferably, described electromagnetic valve includes the trickle charge valve of parallel connection and fills valve soon:
Trickle charge valve V6, V7, V8, for inflating at a slow speed described altitude valve G1, G2, G3；
Fill valve V3, V4, V5 soon, for described altitude valve G1, G2, G3 are carried out fast aeration；
Described trickle charge valve and the described valve that fills soon have different apertures, to control the speed of aeration speed.
Preferably, described trickle charge valve includes three groups, and often one group of altitude valve is inflated by group trickle charge valve.
Preferably, the described valve that fills soon includes three groups, often organizes and fills valve soon and be inflated one group of altitude valve.
Preferably, as it is shown in figure 1, also include switch board 20, described processor 21, control valve are integrated in described switch board 20
On, source of the gas connects with the loading line on switch board, and arranges pressure transducer on this loading line.
Described source of the gas by inflation main line and the connections of three inflation branch roads, three inflation branch roads respectively with altitude valve G1,
G2, G3 connect, and are provided with electromagnetic valve on corresponding connecting line.Inflation main line on be provided with valve QF and electromagnetic valve V1,
V2, is additionally provided with pressure transducer T4 on inflation main line, in order to detect the pressure on inflation main line.
The inflation branch road that each altitude valve G1, G2, G3 are corresponding is the most respectively correspondingly provided with pressure transducer T1, T2,
T3, is respectively used to detect the corresponding pressure inflating branch road.
Each altitude valve and one group of air spring connect, wherein altitude valve G1 correspondence air spring A10, altitude valve G2 pair
Answering air spring A20, altitude valve G3 correspondence air spring A30, each group of air spring all includes multiple air spring.
Preferably, the loading line often organizing altitude valve is provided with a pressure transducer.
Preferably, described height sensor is rod-pulling type sensor.
The present invention is compared with prior art, it is not necessary to being manually monitored levelness and pressure, it is right to be realized by system
Levelness and the regulation of pressure, and self-locking (closing whole electromagnetic valve) is carried out when reaching preset value, and can be by touch screen
Realize display and the effect of touch control.
Processor and two pieces of Analog input mModule are connected, and two pieces of Analog input mModule gather 3 highly sensings respectively
Device and the data of four pressure transducers, Data Source is in air spring vibration isolation platform air spring air pressure inside and vibration-isolating platform
The position height at three angles.Processor controls the opening and closing of electromagnetic valve by digital output module, this Decision Height valve branch road
Whether open and the most directly air spring be inflated.Control parameter and carried out showing and grasping by touch screen with controlling operation
Make.
Its operation principle is: when inflation order is assigned, and whether processor inspection air pressure reaches to preset, the most whether reach pre-
If if not, electromagnetic valve is opened and is inflated, when pressure reaches default, height not up to, is then closed and is filled valve soon, by height
Valve is adjusted, and when altitude valve has regulated, highly reaches default, and pressure is constant, then close all electromagnetic valves, enters state
In the holding stage, i.e. complete inflation.
Claims (10)
1. an air spring vibration isolation platform control system, for air spring vibration isolation platform, including:
At least three altitude valve, described altitude valve is positioned in the gas circuit of described air spring vibration isolation platform bottom inflation, Mei Gegao
Bottom valve is correspondingly arranged on one group of air spring, and air spring is inflated by described altitude valve, be used for controlling correspondence position every
Shake the height of platform；
At least three height sensor, is arranged on described air spring vibration isolation platform, each height sensor correspondence wherein
Individual altitude valve is arranged, for detecting the altitude information of correspondence position；
Pressure transducer, for detecting the pressure data of air spring；
Analog input mModule, is connected with described pressure transducer, height sensor respectively, for obtaining the pressure data of correspondence
And altitude information, and it is sent to processor；
Processor, for receiving the analog data of Analog input mModule, and changes into digital data, and exports to numeral
Amount output module；
Digital output module, for receiving the digital data of processor, and controls the electricity arranged on altitude valve loading line
Magnet valve, and then realize the control to described altitude valve.
2. control system as claimed in claim 1, it is characterised in that
Highly reaching setting value when height sensor senses, pressure transducer senses N continuous time detection pressure in time T
Value, and force value change is less than xMPa, closes whole electromagnetic valve.
3. control system as claimed in claim 1 or 2, it is characterised in that
Also include touch screen, be connected with described processor, for obtaining analog data and the digital data of described processor, and
Corresponding data is shown；
Correspondingly, described processor is additionally operable to analog data is changed into digital data.
4. control system as claimed in claim 3, it is characterised in that
Described touch screen, is additionally operable to obtain control instruction, and described control instruction is sent to described processor.
5. control system as claimed in claim 1 or 2, it is characterised in that
Described electromagnetic valve includes the trickle charge valve of parallel connection and fills valve soon:
Trickle charge valve, for inflating at a slow speed described altitude valve；
Fill valve soon, for described altitude valve is carried out fast aeration；
Described trickle charge valve and the described valve that fills soon have different apertures, to control the speed of aeration speed.
6. control system as claimed in claim 5, it is characterised in that
Described trickle charge valve includes three groups, and often one group of altitude valve is inflated by group trickle charge valve.
7. control system as claimed in claim 5, it is characterised in that
The described valve that fills soon includes three groups, often organizes and fills valve soon and be inflated one group of altitude valve.
8. the control system as described in one of claim 1-7, it is characterised in that
Also include that switch board, described processor, control valve are integrated on described switch board, source of the gas and the loading line on switch board
Connection, and pressure transducer is set on this loading line.
Control system the most as claimed in claims 6 or 7, it is characterised in that
The loading line often organizing altitude valve is provided with a pressure transducer.
10. control system as claimed in claim 1, it is characterised in that
Described height sensor is rod-pulling type sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610825015.0A CN106286695B (en) | 2016-09-14 | 2016-09-14 | A kind of air spring vibration isolation platform control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610825015.0A CN106286695B (en) | 2016-09-14 | 2016-09-14 | A kind of air spring vibration isolation platform control system |
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| CN106286695A true CN106286695A (en) | 2017-01-04 |
| CN106286695B CN106286695B (en) | 2018-09-14 |
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| CN201610825015.0A Active CN106286695B (en) | 2016-09-14 | 2016-09-14 | A kind of air spring vibration isolation platform control system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763464A (en) * | 2017-03-02 | 2017-05-31 | 江苏大学 | A kind of active air vibration isolation unit for micro-vibration technology |
| CN106774021A (en) * | 2017-02-16 | 2017-05-31 | 中国人民解放军海军工程大学 | Large-scale air bag vibration isolation device CAN network control system |
| CN108036019A (en) * | 2017-11-27 | 2018-05-15 | 中国电子工程设计院 | The height levelling control system and method for a kind of air spring vibration isolation platform |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1658101A (en) * | 2004-02-20 | 2005-08-24 | 爱信精机株式会社 | Method of setting control data in an active vibration isolation control system and a control method thereof |
| JP2009138775A (en) * | 2007-12-03 | 2009-06-25 | Tokkyokiki Corp | Air pressure type vibration isolation device |
| CN102494243A (en) * | 2011-12-16 | 2012-06-13 | 常州科尔流体技术有限公司 | Intelligent inflating system of inflatable shock absorber |
| CN203713465U (en) * | 2014-02-26 | 2014-07-16 | 陕西重型汽车有限公司 | Inflation and deflation control system for air springs |
| CN105715735A (en) * | 2016-03-02 | 2016-06-29 | 江苏大学 | Vibration isolation system with controllable rigid damping and inertia force and control method of vibration isolation system |
| CN206545668U (en) * | 2016-09-14 | 2017-10-10 | 中国电子工程设计院 | A kind of air spring vibration isolation platform control system |
-
2016
- 2016-09-14 CN CN201610825015.0A patent/CN106286695B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1658101A (en) * | 2004-02-20 | 2005-08-24 | 爱信精机株式会社 | Method of setting control data in an active vibration isolation control system and a control method thereof |
| CN100380256C (en) * | 2004-02-20 | 2008-04-09 | 爱信精机株式会社 | Method of setting control data in an active vibration isolation control system and a control method thereof |
| JP2009138775A (en) * | 2007-12-03 | 2009-06-25 | Tokkyokiki Corp | Air pressure type vibration isolation device |
| CN102494243A (en) * | 2011-12-16 | 2012-06-13 | 常州科尔流体技术有限公司 | Intelligent inflating system of inflatable shock absorber |
| CN203713465U (en) * | 2014-02-26 | 2014-07-16 | 陕西重型汽车有限公司 | Inflation and deflation control system for air springs |
| CN105715735A (en) * | 2016-03-02 | 2016-06-29 | 江苏大学 | Vibration isolation system with controllable rigid damping and inertia force and control method of vibration isolation system |
| CN206545668U (en) * | 2016-09-14 | 2017-10-10 | 中国电子工程设计院 | A kind of air spring vibration isolation platform control system |
Non-Patent Citations (1)
| Title |
|---|
| 雷鸣: "BG-102型分步投影光刻机减振台研制", 《电子工业专用设备》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106774021A (en) * | 2017-02-16 | 2017-05-31 | 中国人民解放军海军工程大学 | Large-scale air bag vibration isolation device CAN network control system |
| CN106774021B (en) * | 2017-02-16 | 2023-10-27 | 中国人民解放军海军工程大学 | CAN bus network control system of large-scale air bag vibration isolation device |
| CN106763464A (en) * | 2017-03-02 | 2017-05-31 | 江苏大学 | A kind of active air vibration isolation unit for micro-vibration technology |
| CN108036019A (en) * | 2017-11-27 | 2018-05-15 | 中国电子工程设计院 | The height levelling control system and method for a kind of air spring vibration isolation platform |
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| CN106286695B (en) | 2018-09-14 |
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Address after: 100840 No. 27, Haidian District, Beijing, Wanshou Road Patentee after: CHINA ELECTRONICS ENGINEERING DESIGN INSTITUTE Co.,Ltd. Address before: 100840 No. 27, Haidian District, Beijing, Wanshou Road Patentee before: CHINA ELECTRONICS ENGINEERING DESIGN INSTITUE |
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Inventor after: Yan Feng Inventor after: Qin Jingwei Inventor after: Lou Yu Inventor after: Chen Liu Inventor after: Peng Chaobin Inventor after: Dou Shuo Inventor after: Zuo Hanwen Inventor after: Liu Haihong Inventor after: Hu Shuguang Inventor after: Xing Yunlin Inventor before: Yan Feng Inventor before: Qin Jingwei Inventor before: Lou Yu Inventor before: Chen Liu Inventor before: Peng Chaobin Inventor before: Dou Shuo Inventor before: Zuo Hanwen Inventor before: Liu Haihong Inventor before: Hu Shuguang Inventor before: Xing Yunlin |
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Address after: 317, Zone 2, 3rd Floor, No. 160 West Fourth Ring North Road, Haidian District, Beijing, 100080 Patentee after: China Electronics Engineering Design Institute Co.,Ltd. Address before: 100840 No. 27, Haidian District, Beijing, Wanshou Road Patentee before: CHINA ELECTRONICS ENGINEERING DESIGN INSTITUTE Co.,Ltd. |