CN101813152B - Intelligent air bag vibration isolation device - Google Patents

Intelligent air bag vibration isolation device Download PDF

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CN101813152B
CN101813152B CN2009100636567A CN200910063656A CN101813152B CN 101813152 B CN101813152 B CN 101813152B CN 2009100636567 A CN2009100636567 A CN 2009100636567A CN 200910063656 A CN200910063656 A CN 200910063656A CN 101813152 B CN101813152 B CN 101813152B
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control unit
air bag
compressed air
controller
bag vibration
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CN101813152A (en
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何琳
赵应龙
帅长庚
徐伟
吕志强
张战宁
李彦
卜文俊
施亮
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Naval University of Engineering PLA
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Abstract

The invention relates to a vibration isolation device, which uses an air bag vibration isolator as an elastic element, and can automatically realize intelligent functions such as air inflation, air supplementation, load distribution, high-precision attitude control, fault diagnosis, network monitoring and the like. The vibration isolation device consists of the air bag vibration isolator, a controller, a displacement sensor, an air supply, an air inflation control unit, a concentrator, an air circuit and a cable, wherein the displacement sensor senses relative displacement between equipment and a pedestal; a pressure sensor and an electromagnetic valve are integrated in the air inflation control unit for sensing pressure of the air bag vibration isolator and controlling inflation and deflation of the air bag; and the controller carries out analysis processing on a sensor signal and adjusts the pressure and height of the air bag vibration isolator by controlling the air inflation control unit to fulfill the aim of controlling functions of air inflation, air supplementation, load distribution, high-precision attitude control, fault diagnosis, network monitoring and the like of the system. The system adopts modularization design and the vibration isolation device has simple structure, high university and high reliability and can be widely applied to vibration isolation of ships and other industrial large-scale equipment.

Description

Intelligent air bag vibration isolation device
Technical field
The present invention relates to a kind of with the air bag vibration isolator as elastic element, can realize automatically inflating, the low frequency vibration isolation device of intelligent function such as tonifying Qi, load distribution, high-precision attitude control, fault diagnosis, network monitoring.
Background technique
The vibration that control large-sized power device and machinery cause; Make it satisfy standard-required; Be industrial, civilian, the key of mechanical system design MSD in the Ship Design field particularly, adopting vibration insulation structure is to reduce power plant and vibration equipment to transmit one of effective method.Adopt general vibration isolation element to carry out the isolation mounting design and have following problem:
(1) data such as the spatial arrangement of necessary accurately understanding power plant and position of centre of gravity, for simple device, these data are obtained easily; But for large-scale and complicated device or buoyant raft; These data be difficult to obtain, if to the estimated bias of position of centre of gravity, can cause selecting for use vibration isolation element load to depart from load rating; Reduce the device vibration isolating effect, also can reduce the safety in utilization of vibration isolation element when serious;
(2) design of isolation mounting has strict restriction to spatial arrangement and the load thereof of selecting vibration isolator for use, and it is improper that vibration isolator is selected for use, installed, and can cause isolation mounting to tilt, and can influence by the Security of device for vibration insutation when serious;
(3) can not understand the vibration isolation element user mode in real time, when certain vibration isolation element breaks down, can cause isolation mounting to lose efficacy, can't proper functioning by xegregating unit;
(4) vibration isolation element can not carry out accommodation with the isolation mounting load change.
The air bag vibration isolator is compared with general vibration isolation element, and following advantage is arranged: natural frequency is low, and adjustable, and no standing wave effect has good anti-vibration performance; Size is little, bearing capacity is strong; Load, adjustable height scope are big, and adaptability is strong, when isolation mounting designs, mounting point, setting height(from bottom) are not strict with; Can be integrated with control system, realize the intellectual monitoring of isolation mounting and accurately control.Therefore the air bag vibration isolator can be widely used in the vibration isolation design of large-sized power device, buoyant raft, effectively solves to adopt general vibration isolation element to carry out the problem that the vibration isolation design exists.
200510022452.0), " the attitude holding means of air suspension vehicle " (patent No.: 02158789.2), " multiple work position height control mechanism for automobile suspension " (patent No.: 200510017195.1), " adjusting apparatus for height of vehicle of independent suspension type air suspension vehicle " (patent No.: 98120646.8), " displacement controllable air spring vibrating insulative basement " (patent No.: 200510009629.3), " rubber pneumatic bag isolation mounting " (patent No.: 200420150995.1) existing " automatic controlling apparatus for height of wagon " (patent No.:; They are made up of pneumatic spring, height adjusting valve and connecting pipeline thereof; Be primarily aimed at low service system; Only can highly control device; And control accuracy is limited; Can not confirm the equipment position of centre of gravity automatically, realize the distributing rationally of pneumatic spring load, the real-time monitoring of state; To the fault of pneumatic spring and control unit thereof can not real-time diagnosis, warning, when the respective air spring breaks down, can not redistribute load automatically; Make system can't continue normal operation, the reliability of device can not get effective assurance.
Summary of the invention
The objective of the invention is to above-mentioned present situation, aim to provide a kind ofly can realize automatically inflating, the isolation mounting of intelligent functions such as tonifying Qi, load distribution, high-precision attitude control, fault diagnosis, network monitoring.
The implementation of the object of the invention is: intelligent air bag vibration isolation device; The ventilating control unit is connected with the air bag vibration isolator with source of the gas respectively through gas circuit, and displacement transducer is connected with controller through cable, and air bag vibration isolator, displacement transducer are installed on by between device for vibration insutation and the pedestal; Gas source unit, ventilating control unit are installed on the pedestal; Controller is connected with Line concentrator through cable, and Line concentrator links to each other with displacement transducer, ventilating control unit, gas source unit respectively
The compressed air inlet of source of the gas control unit is communicated with pressure transducer, compressed air outlet through the interior gas circuit in the valve seat; The compressed air outlet of source of the gas control unit is communicated with the compressed air inlet of ventilating control unit through gas circuit; The compressed air inlet of ventilating control unit is communicated with normal close type inflation solenoid valve, pressure transducer and compressed air outlet through the gas circuit in the valve seat successively; Air bag vibration isolator of the corresponding connection of each compressed air outlet; Its inner corresponding respectively inflation of one group of normal close type solenoid valve, pressure-releasing electromagnetic valve and pressure transducer; Relief opening is communicated with normal close type pressure-releasing electromagnetic valve, compressed air outlet through the gas circuit in the valve seat successively, and compressed air outlet is communicated with the air bag vibration isolator through gas circuit
Power connector is connected with switch with power supply indicator; Switch connects programmable controller, solid-state relay, touch screen display, work indicator light circuit; Displacement transducer and source of the gas, inflation pressure sensor link to each other with load module, programmable controller through the input electric coupler; The Controlled by Programmable Controller output module sends signal; Signal is isolated and amplification through solid-state relay, is sent to the electric coupler in the ventilating control unit from the output electric coupler, and communication module is connected with outer equipment or the network of control box via communications connectors; Human-computer interaction interface is installed on the touch screen display.
During controller unit startup work of the present invention, programmable controller carries out self check earlier, the user can be through touch screen display parameter during to first operation set; Accomplish parameter setting and attitude calibration, controller unit directly reads signal to sensor under the default situations, carries out faut detection, diagnosis and processing; During fault-free; Controller calculates detection to the equipment attitude, if the equipment attitude meets the demands, then present isolation mounting status information is sent to display screen or Local Area Network; If attitude does not meet the demands; Then according to the attitude of equipment, the information such as pressure of air bag vibration isolator, confirm to wait the air bag vibration isolator that fills, exit to calculate inflation or deflation time; Carry out inflation or venting action, until by the device for vibration insutation pose recovery to the position that meets the demands.
Controller of the present invention can automatic diagnosis have the faults such as solenoid valve, pressure sensor failure, air bag vibration isolator and pipeline principal fault, cable break fault and other unusual service condition of system in displacement transducer fault, gas source unit and the ventilating control unit in running; Can continue fault-tolerant operation after breaking down or carry out stoppage protection, and on the controller display screen, show fault message and maintenance suggestion.
Control system of the present invention adopts modular design, and simple in structure, highly versatile, reliability are high, can be widely used in the vibration isolation of boats and ships and other industry equipment.
Description of drawings
Fig. 1 is intelligent air bag vibration isolation device hardware catenation principle figure,
Fig. 2 is the gas source unit schematic diagram that does not have relief opening,
Fig. 3 is a ventilating control unit schematic diagram of offering relief opening,
Fig. 4 is the intelligent air bag vibration isolation device front view,
Fig. 5 is a ventilating control unit schematic diagram of not offering relief opening,
Fig. 6 is the gas source unit schematic diagram that relief opening is arranged,
Fig. 7 is intelligent air bag vibration isolation device master slave control device catenation principle figure,
Fig. 8 is the controller unit structure principle chart,
Fig. 9 is controller unit control principle figure,
Figure 10 is that air bag vibration isolator and attitude monitoring system displacement transducer are simplified the mounting arrangements schematic representation,
Figure 11 is the complicated mounting arrangements schematic diagram of air bag vibration isolator and centering attitude monitoring system displacement transducer,
Figure 12 is the vertical scheme of installation of air bag vibration isolator,
Figure 13 is the tilting scheme of installation of air bag vibration isolator.
Embodiment
With reference to Fig. 1,4, between by device for vibration insutation 3 and pedestal 1, air bag vibration isolator 2 and displacement transducer 4 are installed.Gas source unit 10, ventilating control unit 5 are installed on the pedestal 1; Displacement transducer 4, ventilating control unit 5 and source of the gas control unit 10 signals transfer to controller 9 through cable 6, Line concentrator 8, and controller 9 control signals transfer to ventilating control unit 5 through cable 6, Line concentrator 8 and source of the gas control unit 10 is controlled.Pressurized gas in the source of the gas 11 (air, nitrogen or other gas) is transported to ventilating control unit 5 through gas circuit 7, source of the gas control unit 10, and ventilating control unit 5 is connected with air bag vibration isolator 2 through gas circuit 7.
With reference to Fig. 2; The compressed air inlet 12 of source of the gas control unit 10 is communicated with bleed pressure sensor 16, compressed air outlet 13 through the interior gas circuit 19 in the valve seat; The compressed air outlet 13 of source of the gas control unit 10 is communicated with the compressed air inlet 50 of ventilating control unit 5 through gas circuit 7, and the bleed pressure sensor 16 in the source of the gas control unit 10 is used to measure the pressure of source of the gas.
With reference to Fig. 3; The compressed air inlet 50 of ventilating control unit 5 is communicated with inflation solenoid valve 14, inflation pressure sensor 48 and compressed air outlet 52 through the valve seat gas circuit 51 in the valve seat successively; Air bag vibration isolator 2 of each compressed air outlet 52 corresponding connection; Its inner corresponding respectively one group of inflation solenoid valve 14, pressure-releasing electromagnetic valve 15 and inflation pressure sensor 48; Relief opening 17 is communicated with pressure-releasing electromagnetic valve 15, compressed air outlet 52 through the valve seat gas circuit 51 in the valve seat successively, and compressed air outlet 52 is communicated with air bag vibration isolator 2 through gas circuit 7.
The gas pressure that inflation pressure sensors 48 in the ventilating control unit 5 are measured in the air bag vibration isolators 2, ventilating control unit 5 is used to control the break-make of gas circuit 7, realizes air bag vibration isolator 2 control of filling, exit.Following 4 solenoid valves of normal condition all cut out, and when air bag vibration isolator 2 needed inflation, inflation solenoid valve 14 was opened, and pressure-releasing electromagnetic valve 15 is closed; When needing venting, inflation solenoid valve 14 cuts out, and pressure-releasing electromagnetic valve 15 is opened.
With reference to Fig. 1,2; The electric coupler 53 of a plurality of ventilating control unit 5 is connected to Line concentrator 8 through many cables 6; Be connected with the output electric coupler 32 of controller 9 through 1 cable 6 again; Thereby send the signal of bleed pressure sensor 16 to controller 9, and receive the action command that controller 9 sends to inflation solenoid valve 14 and pressure-releasing electromagnetic valve 15.
With reference to Fig. 2,3, controller 9 links to each other with electric coupler 53, source of the gas control unit 10 electric couplers 18 of displacement transducer 4, ventilating control unit 5 through cable 6.
With reference to Fig. 5, relief opening 17 can not offered in ventilating control unit 5, and one group of normal close type inflation solenoid valve 14, pressure transducer 48 and compressed air inlet 50 are communicated with in the cancellation pressure-releasing electromagnetic valve 15,52 of compressed air outlets and valve seat.
Controller 9 also can be realized the venting function of air bag vibration isolator 2 through ventilating control unit 5 and 10 teamworks of source of the gas control unit, and source of the gas control unit 10 must designing and arranging gas ports 21 at this moment.With reference to Fig. 6, relief opening 21 is communicated with normal close type pressure-releasing electromagnetic valve 49, compressed air outlet 13 through the gas circuit 19 in the valve seat successively.The compressed air inlet 12 of source of the gas control unit 10 is communicated with open type inflation solenoid valve 20, bleed pressure sensor 16, compressed air outlet 13 through the interior gas circuit 19 in the valve seat successively; Relief opening 21 is communicated with normal close type pressure-releasing electromagnetic valve 49, compressed air outlet 13 through the interior gas circuit 19 in the valve seat successively; Compressed air outlet 13 is communicated with the compressed air inlet 50 of ventilating control unit 5 through gas circuit 7; Open type inflation solenoid valve 20 in the source of the gas control unit 10 cuts out; Normal close type pressure-releasing electromagnetic valve 49 is opened, and the normal close type inflation solenoid valve 14 in the ventilating control unit 5 is opened, and can realize 2 venting of air bag vibration isolator.
Each compressed air outlet 52 in the ventilating control unit 5 can connect the air bag vibration isolator 2 more than 2 simultaneously through gas circuit 7.One group of normal close type inflation of 52 correspondences of compressed air outlet solenoid valve 14 and inflation pressure sensor 48.
A plurality of ventilating control unit 5 also can directly link to each other with controller Unit 9 through many cables 6, thereby pressure transducer 48 signals are sent to controller 9 and receive the action command that controller 9 sends to inflation solenoid valve 14 and pressure-releasing electromagnetic valve 15.
With reference to Fig. 4, between device for vibration insutation 3 and the pedestal 1 displacement transducer 4 is installed also, be used to detect by the attitude of device for vibration insutation 3 and change.A plurality of displacement transducers 4 are connected with Line concentrator 8 through many cables 6, are connected with the input electric coupler 31 of controller 9 through 1 cable 6, thereby send each displacement transducer 4 signal to controller, in order to resolve by the attitude of device for vibration insutation 3.
A plurality of displacement transducers 4 also can directly be connected with controller 9 through many cables 6, thereby send each displacement transducer 4 signal to controller, in order to resolve by the attitude of device for vibration insutation 3.
More in air bag vibration isolator 2 quantity; And under the controller 9 Processing capacity condition of limited; Controller 9 can adopt the structural type of several slave controllers of advocating peace as shown in Figure 7, the form that each slave controller 22 and master controller 23 share, and an end of each slave controller 22 is connected with master controller 23; The other end is through the signal of Line concentrator 8 tap displacement transducers 4, and control ventilating control unit 5.
Master controller 23 receives slave controller 22 signals and sends control command to slave controller 22, directly reads the signal of displacement transducer 4 by slave controller 22, and controls ventilating control unit 5.
With reference to Fig. 8, controller unit 9 is made up of control box 24 and the components and parts that are installed in the control box.Touch screen display 29, the right side, in, in left tutorial light 35,36,37, control switch 38 and the left side, left and right in, right electric coupler 31,32,33,34 is installed on the control box casing.Power supply is connected with switch 38 with power supply indicator 35 through power connector 34; The switch 38 closures then power supply of programmable controller 25, solid-state relay 30, touch screen display 29 are connected, and work indicator light 37 is lighted simultaneously.Displacement transducer 4 and pressure transducer 16,48 link to each other with load module 27 through input electric coupler 31, and sensor signal sends in the programmable controller 25 after load module 27 conversions and analyzes and handle.Programmable controller 25 control output modules 26 send signal, and signal is sent to the electric coupler 53 in the ventilating control unit 5 through solid-state relay 30 isolation and amplification from output electric coupler 32, to air bag vibration isolator 2 control of filling, exit.When programmable controller 25 detected system and breaks down, control output module 26 sent signal, and signal is through 36 flickers of solid-state relay 30 control alarm indicator lamps, and on touch screen display 29, showed fault message.Communication module 28 is realized both-way communication via communications connectors 33 and control box 24 outer equipment or networks.On the touch screen display 29 human-computer interaction interface is installed, can be shown the data in the programmable controller 25, can operate and control programmable controller 25 again.
With reference to Fig. 9, during controller unit 9 startup work 54, programmable controller 25 carries out self check and initialization 55 earlier; Parameter when the user can move through 29 pairs of touch screen displays is for the first time set; Accomplish debugging work 56 such as parameter setting and attitude calibration, controller unit 9 directly reads signal 57 to displacement, source of the gas, inflation sensor 4,16,48 under the default situations, carries out faut detection, diagnosis and handles 58; During fault-free; 9 pairs of controllers are calculated by device for vibration insutation 3 attitudes and detect 59, if met the demands by device for vibration insutation 3 attitudes, then through data communication 61 the isolation mounting status information are sent to display screen 29 or Local Area Network; If attitude does not meet the demands; Then according to by the information such as pressure of the attitude of device for vibration insutation 3, air bag vibration isolator 2, confirm to wait the air bag vibration isolator 2 that fills, exit to calculate inflation or deflation time; Carry out inflation or venting action; To being controlled 60 by the device for vibration insutation attitude, until by device for vibration insutation 3 pose recoveries to the position that meets the demands, through data communication 61 the isolation mounting status information is sent to display screen 29 or Local Area Network then.
The present invention possesses following intelligent function: air bag vibration isolator 2 load-optimised distribution functions; The automatic inflation of air bag vibration isolator 2, gas compensation function; By the High Accuracy Control function of device for vibration insutation 3 attitudes; The fault self-diagnosis function of system etc.Introduce the embodiment of each function below.
Air bag vibration isolator 2 load-optimised distribution functions: confirm by the weight of device for vibration insutation 3 and position of centre of gravity automatically.Through quiet, the dynamic performance test of air bag vibration isolator, can obtain the relation database table between height H, air pressure p and the load F of air bag vibration isolator 2, and deposit controller 9 in.When the air bag vibration isolator will be supported to certain altitude by device for vibration insutation 3; Can calculate the height of each air bag vibration isolator according to equipment rigid body attitude; The pressure that combines detected air bag vibration isolator again, the data query table can obtain the load of current each air bag vibration isolator.Relation according to following power and equalising torque can calculate by the weight of device for vibration insutation and position of centre of gravity.
∑F i=mg (1)
∑F xix i=∑F yiy i=∑F ziz i=0(2)
In the formula: F iLoad for air bag vibration isolator 2; M is by device for vibration insutation weight; G is a gravity accleration; F Xi, F Yi, F ZiBe respectively the air bag vibration isolator at x, y, z direction component; x i, y i, z iCoordinate for i air bag vibration isolator pre-depositing controller.
Obtained by after the weight of device for vibration insutation 3 and the center of gravity data, the present invention proposes the minimum controlling method of a kind of air bag vibration isolator 2 load variances, promptly satisfied under the condition of control requirement by device for vibration insutation 3 attitudes, the load of air bag vibration isolator should satisfy following formula and require:
Min Σ i = 1 n ( F i - F ‾ ) 2 - - - ( 3 )
In the formula: n is an air bag vibration isolator number; F iLoad for each air bag vibration isolator; F is the mean value of all air bag vibration isolator load.
The present invention is that object is analyzed with the isolation mounting of six air bag vibration isolators 2, and with reference to Figure 10, three kinds of representative pressure distribution variances are 7.1,6.5 and 1.8 under operational height, and each force value is seen table 1,
Table 1 (unit: MPa)
Figure G2009100636567D00072
Maximum pressure is respectively 1.056MPa, 1.063MPa and 0.739MPa in the table.Can be known that by table 1 air bag vibration isolator pressure distribution minimum variance is 1.8, the maximum pressure that its maximum pressure is more corresponding than other two kinds of variances distributions is much lower, and pressure distribution is the most even.
In addition; Leak gas as if 2 breakages of part air bag vibration isolator; System can automatic diagnosis go out damaged air bag vibration isolator, and closes ventilating control unit 5, stops using this breakage air bag vibration isolator; Load at other air bag vibration isolators satisfies under the specified carrying condition simultaneously, will be redistributed in all the other air bag vibration isolators according to the principle of optimized distribution by the load of device for vibration insutation.
With reference to Figure 10; Being that benchmark is set up plane coordinate system by device for vibration insutation 3 position of centre of gravitys 39; Air bag vibration isolator 2 is incorporated into respectively according to the spatial position, and four quadrants of system of coordinates are upper right, upper left, left down, bottom right 40,41,42,43, according to displacement transducer 4 readings, confirm height tolerance | Δ h i| (height h and initial setting up in real time be h highly 0The absolute value of difference) maximum quadrant, selection pressure deviation in this quadrant | Δ p i| (real-time pressure p and initial setting up pressure p 0The absolute value of difference) maximum air bag vibration isolator, as Δ h iAdopted pulse mode that it is carried out ventilating control at<0 o'clock, as Δ h i, adopt pulse mode at>0 o'clock to its control of exitting.Through the several times adjustment, can the attitude of equipment be adjusted to and satisfy the position that centering requires.
Can be adopted simplification to install and complicated mounting type according to the requirement of isolation mounting by device for vibration insutation 3 bottom displacement transducers 4 mounting types; The vibrating isolation system that is applicable to the vertical deviation that only needs monitoring device simplify to be installed, and complicated the installation is applicable to the three direction displacement that needs monitoring device and the device of three-dimensional rotational angle.
With reference to Figure 10, simplifying under the mounting type, only need 4 vertical displacement transducers 4 are installed on the horizontal position of bottom of device, be used for the vertical deviation of detective device.Wherein any 3 displacement transducers 4 are conllinear not, and as the normal observation displacement transducer, monitoring is changed by the vertical deviation of device for vibration insutation 3 corresponding 3 measuring points; Confirm by the attitude of device for vibration insutation 3; The 4th displacement transducer be as the redundant displacement sensor, can estimate the theoretical value of redundant displacement sensor position height through the measured value of preceding 3 displacement transducers 4, if the theoretical calculation height is greater than or less than redundant displacement sensor actual measurement height 1.0mm; Judge that then sensor has fault; After system broke down, controller 9 showed fault message, and the maintenance suggestion is provided.
With reference to Figure 11, under complicated mounting type,, need to install 7 displacement transducers like rotating machinery 45 for dynamic output 44, wherein select vertical mounting type for 4, select horizontal mounting type for 3.Any 3 straight lines altogether of the displacement transducer 46 of vertical installation as the normal observation displacement transducer, can calculate vertical angle of declination, the angle of rotation of equipment, the vertical translation situation of monitoring equipment according to the offset deviation of different displacement transducers on the same straight line.The displacement transducer of the 4th vertical installation is as redundant sensor; The measured value of the displacement transducer through preceding 3 vertical installations can be estimated the theoretical value of redundant displacement sensor position height; If the theoretical calculation height is greater than or less than redundant displacement sensor actual measurement height 0.5mm, judge that then the vertical deviation sensor 46 of vertical installation has fault, after system breaks down; Controller 9 receives fault message, and the maintenance suggestion is provided.
The lateral displacement sensor of laterally installing 47 is not total to straight line; Can confirm the lateral deviation angle of equipment according to the offset deviation of 2 displacement transducers that are in the horizontal homonymy of equipment; The lateral displacement deviation has reflected the substantially horizontal translation situation of equipment in corresponding displacement transducer mounting point; The 3rd displacement transducer that is in the lateral symmetry position be as the redundant displacement sensor, and being in offset deviation that the displacement transducer of lateral symmetry mounting point records should equal and opposite in direction, in the opposite direction, if the offset deviation difference that both record surpasses 0.5mm; Judge that then there is fault in the displacement transducer of laterally installing; After system broke down, controller 9 received fault message, and the maintenance suggestion is provided.
According to the method described above, intelligent air bag vibration isolation device can be monitored the centering attitude of rotating machinery in real time:
Figure G2009100636567D00091
In the formula: γ, ζ represent horizontal offset, offset of vertical amount respectively; θ,
Figure G2009100636567D00092
ψ representes lateral deviation angle, vertical angle of declination, angle of rotation respectively; I representes the numbering of displacement transducer; x i s, y i s, z i sRepresent that respectively rotating machinery output shaft coupling end face of flange central point is at #i displacement transducer body coordinate system (o-x i sy i sz i s) in relative position, the displacement transducer body coordinate system is fixed on the rotating machinery; Δ p i x, Δ p i zSubstantially horizontal translation amount, the vertical direction translation amount (side-play amount of each displacement transducer can only reflect the translation amount of a direction) of representing i# displacement transducer installed position rotating machinery respectively.
According to the method described above, control accuracy of the present invention can satisfy: horizontal offset, offset of vertical amount≤0.3mm, lateral deviation angle, vertical angle of declination≤0.5mm/m.
The pneumoelectric magnet valve also can uneasiness be put in the ventilating control unit, and this moment, intelligent air bag vibration isolation device did not have the venting function, and system's control accuracy satisfies: horizontal offset, offset of vertical amount≤1.0mm, lateral deviation angle, vertical angle of declination≤1.0mm/m.
Controller 9 of the present invention can automatic diagnosis have the right side, a left side, following solenoid valve 14,15,20, source of the gas, inflation pressure sensor 16,48 faults, air bag vibration isolator 2 and faults such as pipeline 7 principal faults, cable 6 disconnection faults and other unusual service condition of system in displacement transducer 4 faults, gas source unit 10 and the ventilating control unit 5 in running; Can continue fault-tolerant operation after breaking down or carry out stoppage protection, and on controller 9 display screens 29, show fault message and maintenance suggestion.
The present invention is when proper functioning; Controller 9 is in 60 seconds set time; Set on the inflation times and be limited to 6 times; Controller 9 is added up the inflation times of each air bag vibration isolator automatically, and actual inflation times surpasses the inflation times upper limit and the variable height set to be increased less than 0.03MPa less than 0.05mm or gasbag pressure, shows that then this air bag gas leakage degree surpasses allowed band or the corresponding solenoid valve of this air bag breaks down.When gas leakage took place air bag vibration isolator 2, controller 9 was closed corresponding ventilating control unit 5 automatically, isolates this fault air bag vibration isolator, will in all the other air bag vibration isolators 2, be carried out optimized distribution again by device for vibration insutation 3 load, and the assurance system normally moves.
The present invention is when proper functioning; Set up air bag vibration isolator 2 pressure and System State Model highly; Through the Kalamn filtering residual error, comparative analysis theoretical calculation pressure value and inflation pressure sensor 48 measured datas are judged inflation pressure sensor 48 faults; On controller 9 display interfaces, show fault message, and the maintenance suggestion is provided.
Controller 9 is accomplished air bag vibration isolator 2 and is filled, exits the action realization by the adjustment of device for vibration insutation 3 attitudes, in this process through controlling the right side in the ventilating control unit 5,14,15 switchings of left solenoid valves; Gasbag pressure or height value will produce significant change; If its amplitude of variation, thinks then that solenoid valve can't normally open less than the burst length of setting corresponding pressure or height minimum change threshold value, when solenoid valve occurs opening fault; Controller 9 will be isolated the air bag vibration isolator of this electromagnetic valve automatically; Only monitor its status parameter, according to the virtual condition of this air bag vibration isolator, to being carried out optimized distribution again by the load of device for vibration insutation.If this air bag vibration isolator pressure and raising highly gradually, and force value thinks then that near gas circuit 7 pressure solenoid valve can't be closed, and system will start emergency protection mechanism this moment, and in time system safety operation is guaranteed in warning.
With reference to Figure 12,13 air bag vibration isolators, 2 vertical installations or tilting being installed on by between device for vibration insutation 3 and the pedestal 1, tilting setting angle is less than 45 °.
By device for vibration insutation 3 can be 1, also can be more than 2, and being installed in jointly by device for vibration insutation 3 on the public raft body more than 2 is installed on the pedestal through air bag vibration isolator 2 again.
Controller 9 can be connected with Local Area Network, long haul network, realizes network monitoring.
Support air bag vibration isolator 2 can adopt identical air bag vibration isolator or different bladder vibration isolator, and the air bag vibration isolator of employing can be capsule formula structure or membrane type structure, and shape can be circle or cuboid.

Claims (8)

1. intelligent air bag vibration isolation device; It is characterized in that the ventilating control unit is connected with the air bag vibration isolator with source of the gas respectively through gas circuit, displacement transducer is connected with controller through cable, and air bag vibration isolator, displacement transducer are installed on by between device for vibration insutation and the pedestal; Source of the gas control unit, ventilating control unit are installed on the pedestal; Controller is connected with Line concentrator through cable, and Line concentrator links to each other with displacement transducer, ventilating control unit, source of the gas control unit respectively
The compressed air inlet of source of the gas control unit is communicated with pressure transducer, compressed air outlet through the interior gas circuit in the valve seat; The compressed air outlet of source of the gas control unit is communicated with the compressed air inlet of ventilating control unit through gas circuit; The compressed air inlet of ventilating control unit is communicated with normal close type inflation solenoid valve, inflation pressure sensor and compressed air outlet through the gas circuit in the valve seat successively; Air bag vibration isolator of the corresponding connection of each compressed air outlet; Its inner corresponding respectively inflation of one group of normal close type solenoid valve, pressure-releasing electromagnetic valve and inflation pressure sensor; Relief opening is communicated with the compressed air outlet of normal close type pressure-releasing electromagnetic valve, ventilating control unit through the gas circuit in the valve seat successively, and compressed air outlet is communicated with the air bag vibration isolator through gas circuit
Power connector is connected with switch with power supply indicator; Switch connects programmable controller, solid-state relay, touch screen display, work indicator light circuit; Displacement transducer and source of the gas, inflation pressure sensor link to each other with load module, programmable controller through the input electric coupler; The Controlled by Programmable Controller output module sends signal; Signal is isolated and amplification through solid-state relay, is sent to the electric coupler in the ventilating control unit from the output electric coupler, and communication module is connected with outer equipment or the network of control box via communications connectors; Human-computer interaction interface is installed on the touch screen display.
2. intelligent air bag vibration isolation device according to claim 1; The electric coupler (53) that it is characterized in that a plurality of ventilating control unit (5) is connected to Line concentrator (8) through many cables (6), is connected with the output electric coupler (32) of controller (9) through 1 cable (6) again.
3. intelligent air bag vibration isolation device according to claim 1; It is characterized in that between device for vibration insutation (3) and the pedestal (1) displacement transducer (4) being installed; Displacement transducer (4) is connected with Line concentrator (8) through cable (6), is connected with the input electric coupler (31) of controller (9) through 1 cable (6) again.
4. intelligent air bag vibration isolation device according to claim 1 is characterized in that controller (9) links to each other with the electric coupler (53) of displacement transducer (4), ventilating control unit (5), the electric coupler (18) of source of the gas control unit (10) through cable (6).
5. intelligent air bag vibration isolation device according to claim 1 is characterized in that each compressed air outlet (52) in the ventilating control unit (5). connect the air bag vibration isolator (2) more than 2 simultaneously through gas circuit (7).
6. according to claim 1 or 5 described intelligent air bag vibration isolation devices, it is characterized in that the only corresponding one group of normal close type inflation solenoid valve (14) of compressed air outlet (52) and the inflation pressure sensor (48) of ventilating control unit.
7. intelligent air bag vibration isolation device according to claim 1; The compressed air inlet (12) that it is characterized in that source of the gas control unit (10) can be communicated with open type inflation solenoid valve (20), bleed pressure sensor (16), compressed air outlet (13) through the interior gas circuit (19) in the valve seat successively; Relief opening (21) is communicated with the compressed air outlet (13) of normal close type pressure-releasing electromagnetic valve (49), source of the gas control unit through the interior gas circuit (19) in the valve seat successively, and the compressed air outlet of source of the gas control unit (13) is communicated with the compressed air inlet (50) of ventilating control unit (5) through gas circuit (7).
8. intelligent air bag vibration isolation device according to claim 1; It is characterized in that controller (9) adopts several slave controllers of advocating peace; One end of each slave controller (22) is connected with master controller (23); The other end is through the signal of Line concentrator (8) tap displacement transducer (4), and control ventilating control unit (5).
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