CN202660046U - Hydraulic valve jamming and chucking detection intelligent controller - Google Patents
Hydraulic valve jamming and chucking detection intelligent controller Download PDFInfo
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- CN202660046U CN202660046U CN 201220135715 CN201220135715U CN202660046U CN 202660046 U CN202660046 U CN 202660046U CN 201220135715 CN201220135715 CN 201220135715 CN 201220135715 U CN201220135715 U CN 201220135715U CN 202660046 U CN202660046 U CN 202660046U
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Abstract
The utility model relates to a hydraulic valve jamming and chucking detection intelligent controller which is electrically connected with an electro-hydraulic proportional valve provided with a proportion electro-magnet and a valve element. The intelligent controller comprises a dithering signal generation module 16, a system control signal module 14, a stabilized voltage supply module 15, a PID (Proportion Integration Differentiation) control module 17, a power stabilized voltage supply module 18, a sampling module 19, a signal processing module 20, a negative feedback module 21 and a jamming and chucking judgment module 22, wherein the jamming and chucking judgment module 22 is used for giving out a membership degree judgment of the jamming and chucking through a fuzzy multi-criteria decision-making method. By adopting the intelligent controller, the jamming and chucking faults of a valve element of a slide valve can be detected and judged in real time, and the intelligent controller has the advantages of higher sensitivity and accuracy, simple structure and low cost.
Description
Technical field
The bite chucking that the utility model relates to a kind of hydrovalve, particularly a kind of hydrovalve detects intelligent controller.
Background technique
Slide-valve gear is to adopt maximum a kind of structural type in all kinds of hydrovalves, and guiding valve consists of valve body, spool and three critical pieces of valve pocket, and by changing the position of spool in the valve body valve pocket, guiding valve can be realized change and the break-make of direction of flow.It is one of fault the most common in hydraulic system and failure mode that the guiding valve bite even tightens fault, generally can be divided into hydraulic pressure bite, chucking and mechanical bite chucking two large classes.Popular saying, bite refers to the intermediateness between nominal situation and chucking, and chucking is exactly that spool is inactive, and bite refers to that spool moves difficulty, smooth and easy during not as normal operation, is the omen of chucking, and solution in time can be avoided the generation of chucking.
Wherein, the hydraulic pressure bite, the chucking mainly because machining causes spool error in geometrical form and coaxiality error to produce radially unbalanced pressure, cause, mechanical bite, the chucking be mainly due to the operation on-the-spot particulate pollutant deposit and cause gradually in the guiding valve gap.There is constant pressure reduction at radial clearance two ends in spool and valve body formation, when hydraulic oil is brought contamination particle into gap, because the surface of gap runner hole wall also has the ability of catching contamination particle---degree of depth type filtering effect is constantly caught contamination particle, and contamination particle occurs hold back, pollute clamping force thereby produce.Simply say, pollute the main Types that chucking is the machinery chucking, the radial force imbalance is to cause the main cause of hydraulic lock.And bite is often caused by slight pollution chucking or radial force imbalance, resistance is less.
In prior art, the method of getting rid of above-mentioned two kinds of faults mainly contains two kinds: the one, in processing and on-the-spot running, take measures, reduce the probability broken down, such as installing on fine filter, spool, rationally offer balancing slit, strict processing and assembling quality etc. in system; Another kind method is exactly that online real-time fault diagnosis and fault are got rid of.At present, there is no sensitiveer, online real time fault diagnosis device accurately, though or similar device complex structure, with high costs arranged.
In view of this, the inventor is in conjunction with being engaged in hydrovalve area research work experience for many years, and the defect of above-mentioned technical field is studied for a long period of time, and this case produces thus.
The model utility content
The purpose of this utility model is to provide a kind of bite chucking of hydrovalve to detect intelligent controller, can detect in real time and judge bite, the chucking fault of valve core of the spool valve, has higher sensitivity and accuracy, and simple in structure, with low cost.
To achieve these goals, the technical solution of the utility model is as follows:
A kind of bite chucking of hydrovalve detects intelligent controller, with the electro-hydraulic proportional valve that proportion electro-magnet and spool are housed, is electrically connected to.Comprise vibrating signal generation module 16, system control signal module 14, power module of voltage regulation 15, pid control module 17, power amplifier module 18, sampling module 19, signal processing module 20, reverse feedback module 21 and bite chucking judging module 22.
Wherein, power module of voltage regulation 15 is connected with vibrating signal generation module 16, pid control module 17, power amplifier module 18, sampling module 19, signal processing module 20, reverse feedback module 21 and bite chucking judging module 22 respectively; Vibrating signal generation module 16 is connected with pid control module 17, power amplifier module 18 respectively; System control signal module 14 is connected with reverse feedback module 21, pid control module 17 respectively; Pid control module 17 is connected with system control signal module 14, reverse feedback module 21, vibrating signal generation module 16, power amplifier module 18 respectively; Reverse feedback module 21 is connected with system control signal module 14, pid control module 17, signal processing module 20 respectively; Power amplifier module 18 is connected with the proportion electro-magnet 24 on pid control module 17, vibrating signal generation module 16, electro-hydraulic proportional valve respectively; Sampling module 19 is connected with the proportion electro-magnet 24 on signal processing module 20, electro-hydraulic proportional valve respectively; Signal processing module 20 is connected with sampling module 19, bite chucking judging module 22, reverse feedback module 21 respectively; Bite chucking judging module 22 is connected with signal processing module 20.
Vibrating signal generation module 16 generates characteristic frequency, the vibrating signal of amplitude and waveform, system control signal module 14 for the signal of controlling the electro-hydraulic proportional valve spool travel with after subtracting each other from the feedback signal of reverse feedback module 21, offer pid control module 17 as input, after the output signal of pid control module 17 and the vibrating signal addition from vibrating signal generation module 16, after amplifying, power amplifier module 18 removes to drive proportion electro-magnet 24, vibrating signal waveform on the proportion electro-magnet 24 that sampling module 19 Real-time Collections are connected with spool 4, and waveform is offered to signal processing module 20, signal processing module 20 separates control signal with the flutter waveform, offer reverse feedback module 21 using control signal as input, the average value information of control signal and vibrating signal are offered to bite chucking judging module 22 as input simultaneously, bite chucking judging module 22 is according to the frequency of input vibrating signal, peak-to-peak value, the average value information of wave distortion and control signal, provide bite by Fuzzy multiple criteria decision-making method, the degree of membership judgement of chucking.
Further, the degree of membership judgement that described bite chucking judging module 22 provides bite, chucking by Fuzzy multiple criteria decision-making method refers to: at first, adopt scoring function
Δ, accurate function
hand departure function
pcomprehensively pass judgment on, establish
a=
a 1 ,
a 2 ,
...,
a m be the scheme collection,
g=(
Δ,
h,
d)
tfor attribute vector,
for
gin each attribute weight vector,
∈ [0,1],
, estimate matrix and be:
; Scheme integrates three kinds of schemes in A three kinds of operating modes as electro-hydraulic proportional valve, respectively nominal situation, bite operating mode and chucking operating mode, frequency, peak-to-peak value, wave distortion and mean value that four kinds of attributes in property set G are vibrating signal, these four kinds of signals are provided by signal processing module 20; In bite chucking judging module, 22 12 bits serial A/D transducer TLV2453 converts 4 road signals digital quantity signal to and passes to data processing chip TMS320VC5402; The weight vectors of index is
ω=(0.1,0.5,0.2,0.2)
tthe weight maximum of the peak-to-peak value attribute of vibrating signal, these four weights, are called for data processing chip TMS320VC5402 in the FLASHROM in bite chucking judging module 22 by software solidification, can also by network remote, revise by the RS485 communication interface simultaneously; Attribute weight vector ω is multiplied each other and obtains the comprehensive vector of passing judgment on the evaluation matrix J:
, sorted according to the size of B element, and press maximum subjection principle and select optimum scheme; Secondly, the Interval Intuitionistic Fuzzy decision-making concrete steps based on this ranking method are as follows: the first step, and utilize weighting arithmetic to estimate the capable all elements of i in operator (1) Integrated Decision matrix, thereby obtain the comprehensive Interval Intuitionistic Fuzzy value corresponding to option A i; Second step, utilize respectively scoring function, accurate function and the departure function functional value that counts the score
(Ai), accurate functional value H (Ai) and departure function value P (Ai) (i=1,2 ..., m), build and estimate matrix J; The 3rd step, select the attribute weight vector
, calculate the comprehensive vectorial B of judge, sorted according to the size of B element, and press maximum subjection principle and select optimum scheme; The 3rd, after data processing chip TMS320VC5402 processes, provide the comprehensive judge information of electro-hydraulic proportional valve operating mode.Thereby further improve monotonicity, validity and the sensitivity of bite chucking testing signal, improve in bite chucking faut detection and accuracy, sensitivity and reliability on judging.
Further, it is 95Hz that described vibrating signal generation module 16 produces frequency, and amplitude is 85% rated current, the vibrating signal that waveform is normal distribution curve.The difference of waveform, frequency and the amplitude of the vibrating signal that vibrating signal generation module generates is most important for validity and the sensitivity of this detecting method, the inventor finds under study for action, the vibrating signal frequency is at 95Hz, amplitude is 85% rated current, when waveform is normal distribution curve, it is dull that vibrating signal changes, and highly sensitive, best to the detection effect of fault.
Further, described intelligent controller also comprises repairs bite gripping mechanism control module 23, repairs bite gripping mechanism control module 23 and is connected with power module of voltage regulation 15, bite chucking judging module 22 and reparation bite gripping mechanism respectively; Whether bite tightens judging module 22 bite, the judgement of chucking degree of membership provided is outputed to and repair bite gripping mechanism control module 23, repair the bite gripping mechanism by 23 controls of reparation bite gripping mechanism control module and work or no whole work.Thereby improve the instruction to bite chucking fault and carry out accuracy, sensitivity and the reliability on repairing.
Further, when bite chucking judging module provides the bite judgement, start the bite fault and solve pattern, repair the reparation bite function of bite gripping mechanism control module control reparation bite gripping mechanism and start working; When bite chucking judging module provides the chucking judgement, start the chucking fault and solve pattern, repair bite gripping mechanism control module and control the reparation clamping function of repairing the bite gripping mechanism and start working.Thereby can provide and repair bite or repair clamping function and start working according to the fault order of severity, energy saving, have reduced the damage of repairing device to hydrovalve, improved reliability and the life-span of hydrovalve.
Further, intelligent controller also comprises that being repaired bite gripping mechanism control module controls, limits the timing device of repairing the bite gripping mechanism operating time, after the timing working time of repairing the bite gripping mechanism, vibrating signal waveform on the proportion electro-magnet 24 that sampling module 19 continuous acquisition are connected with spool 4, and waveform is offered to signal processing module 20, give to be out of order through bite chucking judging module 22 and get rid of effect judgement information and make the follow-up work instruction.Thereby further save energy and reduce the cost and increase work efficiency.
Further, described bite chucking judging module 22 is given to be out of order to get rid of effect judgement information and make the follow-up work instruction and referred to: when bite tightens, judging module 22 provides bite or the chucking fault is got rid of judgement, and instruction returns nominal situation; Alleviate judgement when bite chucking judging module 22 provides the bite fault, instruction starts bite fault solution pattern again; Alleviate judgement when bite chucking judging module 22 provides the chucking fault, instruction starts chucking fault solution pattern again.Thereby further save energy and reduce the cost and increase work efficiency.
Further, described bite chucking judging module 22 is given to be out of order to get rid of effect judgement information and make the follow-up work instruction and is also comprised: when starting twice above bite fault, solve pattern, bite chucking judging module 22 still provides the bite fault and alleviates judgement, think that this bite fault cause is for the chucking fault, instruction starts the chucking fault and solves pattern.Thereby further save energy and reduce the cost and increase work efficiency.
The mode that the work of bite gripping mechanism is repaired in its instruction of the intelligent hydraulic valve the utility model proposes belongs to intermittent duty, repairs the bite gripping mechanism under nominal situation in halted state, while only having bite chucking fault to be detected, just starts.
It is as follows that the intelligent controller working principle of repairing bite chucking fault is carried out in the utility model detection, judgement and instruction:
Be generally and avoid spool bite chucking, generally being superimposed with the low frequency vibrating signal on spool, to make spool be the radial vibration that keeps slight axially moving.When bite, chucking fault occur, must cause spool radial vibration damping to increase, be reacted to thus on electrical signal and just make vibrating signal change, intelligent controller can judge that by the variation that detects vibrating signal whether spool is in fault state.Because feedback module in Common Controller has obvious inhibitory action to the variation effect of vibrating signal, make this wave form varies ratio less.Signal processing module in intelligent controller is separated vibrating signal from control signal, tightens judging module by bite and processes, and detection sensitivity is significantly improved.
Bite chucking judging module goes to control reparation bite gripping mechanism control module according to court verdict.While the bite fault being detected, repair the reparation bite function of bite gripping mechanism control module control reparation bite gripping mechanism and start working; While the chucking fault being detected, repair the reparation clamping function of bite gripping mechanism control module control reparation bite gripping mechanism and start working.
Adopt the technical program, the utility model is obtained following useful technique effect: 1, on bite tightens the detection of fault and judges, have very high sensitivity and accuracy, such as utilizing specific vibrating signal generation module and signal processing module, can guarantee monotonicity, validity and the sensitivity of bite chucking testing signal; 2, repair the bite gripping mechanism and adopt intelligent control to judge when starting, realize intermittent duty, repair the bite gripping mechanism under nominal situation in halted state, just start while only having bite chucking fault to be detected, thereby greatly improve the working life of equipment and save energy and reduce the cost; 3, with existing similar functions device, compare, simple in structure, with low cost and using effect is good.
Below in conjunction with drawings and Examples, the utility model is described in further detail the technical solution of the utility model in order further to explain.
The accompanying drawing explanation
Fig. 1 is structured flowchart of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, enforcement of the present utility model is done to further detailed description.
In the following embodiments, that electro-hydraulic proportional valve adopts is QVKZOR, the ATOS of production firm, and the first International Trade Corporation of factorage Shanghai section, intelligent controller is the circuit board that a monoblock is complete, each module is the functional circuit on it, is inventor's self-control.Repair the bite gripping mechanism and adopt ultrasonic treatment unit, that be specially the ultrasonic generator employing is KMD-1000, the Ke Meida of production firm Shenzhen ultrasonic equipment Co., Ltd, and that supersonic transducer adopts is YP-7015-4Z, Hangzhou Success Ultrasonic Equipment Co., Ltd of production firm
Embodiment 1: the bite faut detection
As shown in Figure 1, a kind of bite of hydrovalve chucking detects intelligent controller, with the electro-hydraulic proportional valve that proportion electro-magnet and spool are housed, is electrically connected to.Comprise vibrating signal generation module 16, system control signal module 14, power module of voltage regulation 15, pid control module 17, power amplifier module 18, sampling module 19, signal processing module 20, reverse feedback module 21, bite chucking judging module 22 and repair bite gripping mechanism control module 23.
Wherein, power module of voltage regulation 15 is connected with vibrating signal generation module 16, pid control module 17, power amplifier module 18, sampling module 19, signal processing module 20, reverse feedback module 21, bite chucking judging module 22 and reparation bite gripping mechanism control module 23 respectively; Vibrating signal generation module 16 is connected with pid control module 17, power amplifier module 18 respectively; System control signal module 14 is connected with reverse feedback module 21, pid control module 17 respectively; Pid control module 17 is connected with system control signal module 14, reverse feedback module 21, vibrating signal generation module 16, power amplifier module 18 respectively; Reverse feedback module 21 is connected with system control signal module 14, pid control module 17, signal processing module 20 respectively; Power amplifier module 18 is connected with the proportion electro-magnet 24 on pid control module 17, vibrating signal generation module 16, electro-hydraulic proportional valve respectively; Sampling module 19 is connected with the proportion electro-magnet 24 on signal processing module 20, electro-hydraulic proportional valve respectively; Signal processing module 20 is connected with sampling module 19, bite chucking judging module 22, reverse feedback module 21 respectively; Bite chucking judging module 22 is connected with signal processing module 20, reparation bite gripping mechanism control module 23 respectively; Repairing bite gripping mechanism control module 23 is connected with reparation bite gripping mechanism.
In the present embodiment, specifically, the analog signals of the power amplifier module of intelligent controller output is connected by the analog quantity input of 7 cores or 12 core plugs and electro-hydraulic proportional valve.The reparation bite gripping mechanism control module of intelligent controller is repaired the start and stop of bite gripping mechanism by Control.
In present embodiment, it is 95Hz that vibrating signal generation module 16 produces frequency, and amplitude is 85% rated current, the vibrating signal that waveform is normal distribution curve; The difference of waveform, frequency and the amplitude of the vibrating signal that vibrating signal generation module generates is most important for validity and the sensitivity of this detecting method, the inventor finds under study for action, the vibrating signal frequency is at 95Hz, amplitude is 85% rated current, when waveform is normal distribution curve, it is dull that vibrating signal changes, and highly sensitive, best to the detection effect of fault.System control signal module 14 for the signal of controlling the electro-hydraulic proportional valve spool travel with after subtracting each other from the feedback signal of reverse feedback module 21, offer pid control module 17 as input; After the output signal of pid control module 17 and the vibrating signal addition from vibrating signal generation module 16, after amplifying, power amplifier module 18 removes to drive proportion electro-magnet 24; Vibrating signal waveform on the proportion electro-magnet 24 that sampling module 19 Real-time Collections are connected with spool 4, and waveform is offered to signal processing module 20; Signal processing module 20 separates control signal with the flutter waveform, offer reverse feedback module 21 using control signal as input, the average value information of control signal and vibrating signal is offered to bite chucking judging module 22 as input simultaneously; Bite chucking judging module 22 is according to the average value information of frequency, peak-to-peak value, wave distortion and the control signal of input vibrating signal, provide the degree of membership judgement of bite, chucking by Fuzzy multiple criteria decision-making method, and this information output is arrived and repairs bite gripping mechanism control module 23, by repairing bite gripping mechanism control module 23 control reparation bite gripping mechanisms, work.
Adopt the intelligent controller of above-mentioned feature, can improve detection, judgement and instruction and carry out sensitivity, accuracy and the validity on repairing, such as utilizing specific vibrating signal generation module and signal processing module, guarantee monotonicity, validity and the sensitivity of bite chucking testing signal.Realize the modules of above-mentioned functions, the structures such as its concrete circuit, components and parts owing to belonging to prior art, just repeat no more herein.
In the present embodiment, also comprise that being repaired bite gripping mechanism control module controls, can limit the timing device of repairing the bite gripping mechanism operating time.
When the bite fault occurs, when bite chucking judging module provides the bite judgement, start the bite fault and solve pattern, repair bite gripping mechanism control module and send control signal, start the reparation bite function of repairing the bite gripping mechanism and start timing device simultaneously.Thereby can provide and repair bite or repair clamping function and start working according to the fault order of severity, energy saving, have reduced the damage of repairing device to hydrovalve, improved reliability and the life-span of hydrovalve.
After the timing working time of repairing the bite gripping mechanism, vibrating signal waveform on the proportion electro-magnet 24 that sampling module 19 continuous acquisition are connected with spool 4, and waveform is offered to signal processing module 20, give to be out of order through bite chucking judging module 22 and get rid of effect judgement information and make the follow-up work instruction.If the bite fault is got rid of, instruction returns nominal situation; If the bite fault alleviates, instruction starts bite fault solution pattern again; If the bite fault does not alleviate, think that this bite fault cause is for the chucking fault, instruction starts the chucking fault and solves pattern.Thereby further save energy and reduce the cost and increase work efficiency.
Embodiment 2: the chucking faut detection
As shown in Figure 1, a kind of bite of hydrovalve chucking detects intelligent controller, with the electro-hydraulic proportional valve that proportion electro-magnet and spool are housed, is electrically connected to.In the present embodiment, except following being otherwise noted, the other guide of intelligent controller, with embodiment 1, repeats no more herein.
When the chucking fault occurs, when bite chucking judging module provides the chucking judgement, start the chucking fault and solve pattern, repair bite gripping mechanism control module and send control signal, start the reparation clamping function of repairing the bite gripping mechanism and start timing device simultaneously.Thereby can provide and repair bite or repair clamping function and start working according to the fault order of severity, energy saving, have reduced the damage of repairing device to hydrovalve, improved reliability and the life-span of hydrovalve.
After the timing working time of repairing the bite gripping mechanism, vibrating signal waveform on the proportion electro-magnet 24 that sampling module 19 continuous acquisition are connected with spool 4, and waveform is offered to signal processing module 20, give to be out of order through bite chucking judging module 22 and get rid of effect judgement information and make the follow-up work instruction.If the chucking fault is got rid of, instruction returns nominal situation; If the chucking fault alleviates, instruction starts chucking fault solution pattern again.
In above-mentioned two embodiments, bite chucking judging module 22 is according to the average value information of frequency, peak-to-peak value, wave distortion and the control signal of the vibrating signal of sampling, and the degree of membership judging process that provides bite, chucking by Fuzzy multiple criteria decision-making method is as follows:
Due to electro-hydraulic proportional valve when nominal situation, bite operating mode and the chucking operating mode, the value of the electrical signal such as its vibrating signal frequency, peak-to-peak value, wave distortion and mean value is not a fixing value, but in certain interval fluctuation, be difficult to determine its failure condition by the method directly compared, for this reason, adopted the comprehensive foundation of integrated ordered new departure of a kind of Interval Intuitionistic Fuzzy number as the judgement of bite chucking in bite chucking judging module 22.
At first, adopted and used scoring function
Δ, accurate function
hand departure function
pcarry out comprehensively passing judgment on, establish
a=
a 1 ,
a 2 ,
...,
a m be the scheme collection,
g=(
Δ,
h,
d)
tfor attribute vector,
for
gin each attribute weight vector,
∈ [0,1],
, estimate matrix and be:
; Scheme integrates three kinds of schemes in A three kinds of operating modes as electro-hydraulic proportional valve, respectively nominal situation, bite operating mode and chucking operating mode, frequency, peak-to-peak value, wave distortion and mean value that four kinds of attributes in property set G are vibrating signal, these four kinds of signals are provided by signal processing module 20; In bite chucking judging module, 22 12 bits serial A/D transducer TLV2453 converts 4 road signals digital quantity signal to and passes to data processing chip TMS320VC5402; The weight vectors of index is
ω=(0.1,0.5,0.2,0.2)
tthe weight maximum of the peak-to-peak value attribute of vibrating signal, these four weights, are called for data processing chip TMS320VC5402 in the FLASHROM in bite chucking judging module 22 by software solidification, can also by network remote, revise by the RS485 communication interface simultaneously; Attribute weight vector ω is multiplied each other and obtains the comprehensive vector of passing judgment on the evaluation matrix J:
, sorted according to the size of B element, and press maximum subjection principle and select optimum scheme;
Secondly, the Interval Intuitionistic Fuzzy decision-making concrete steps based on this ranking method are as follows: the first step, and utilize weighting arithmetic to estimate the capable all elements of i in operator (1) Integrated Decision matrix, thereby obtain the comprehensive Interval Intuitionistic Fuzzy value corresponding to option A i; Second step, utilize respectively scoring function, accurate function and the departure function functional value that counts the score
(Ai), accurate functional value H (Ai) and departure function value P (Ai) (i=1,2 ..., m), build and estimate matrix J; The 3rd step, select the attribute weight vector
, calculate the comprehensive vectorial B of judge, sorted according to the size of B element, and press maximum subjection principle and select optimum scheme;
The 3rd, after data processing chip TMS320VC5402 processes, provide the comprehensive judge information of electro-hydraulic proportional valve operating mode, after this information offers and repairs bite gripping mechanism control module 23, according to different operating modes, go to control whether ultrasonic generator and supersonic transducer work or no whole work.
Said process can further improve monotonicity, validity and the sensitivity of bite chucking testing signal, improves in the faut detection of bite chucking, judgement and instruction and carries out accuracy, sensitivity and the reliability on repairing.
Adopt technique scheme, at first, there is very high sensitivity and accuracy on bite tightens the detection of fault and judges, such as utilizing specific vibrating signal generation module and signal processing module, can guarantee monotonicity, validity and the sensitivity of bite chucking testing signal; Secondly, to when starting the judgement of reparation bite gripping mechanism employing intelligent control, realize intermittent duty, repair the bite gripping mechanism under nominal situation in halted state, just start while only having bite chucking fault to be detected, thereby greatly improve the working life of equipment and save energy and reduce the cost; The 3rd, with existing similar functions device, compare, simple in structure, with low cost and using effect is good.
The foregoing is only specific embodiment of the utility model, not to the restriction of this case design, all equivalent variations of doing according to the design key of this case, all fall into the protection domain of this case.
Claims (1)
1. the bite of hydrovalve chucking detects intelligent controller, be electrically connected to the electro-hydraulic proportional valve that proportion electro-magnet and spool are housed, it is characterized in that: comprise vibrating signal generation module (16), system control signal module (14), power module of voltage regulation (15), pid control module (17), power amplifier module (18), sampling module (19), signal processing module (20), reverse feedback module (21) and bite chucking judging module (22);
Wherein, power module of voltage regulation (15) is connected with vibrating signal generation module (16), pid control module (17), power amplifier module (18), sampling module (19), signal processing module (20), reverse feedback module (21) and bite chucking judging module (22) respectively; Vibrating signal generation module (16) is connected with pid control module (17), power amplifier module (18) respectively; System control signal module (14) is connected with reverse feedback module (21), pid control module (17) respectively; Pid control module (17) is connected with system control signal module (14), reverse feedback module (21), vibrating signal generation module (16), power amplifier module (18) respectively; Reverse feedback module (21) is connected with system control signal module (14), pid control module (17), signal processing module (20) respectively; Power amplifier module (18) is connected with the proportion electro-magnet (24) on pid control module (17), vibrating signal generation module (16), electro-hydraulic proportional valve respectively; Sampling module (19) is connected with the proportion electro-magnet (24) on signal processing module (20), electro-hydraulic proportional valve respectively; Signal processing module (20) is connected with sampling module (19), bite chucking judging module (22), reverse feedback module (21) respectively; Bite chucking judging module (22) is connected with signal processing module (20);
Vibrating signal generation module (16) generates characteristic frequency, the vibrating signal of amplitude and waveform, system control signal module (14) for the signal of controlling the electro-hydraulic proportional valve spool travel with after subtracting each other from the feedback signal of reverse feedback module (21), offer pid control module (17) as input, after the output signal of pid control module (17) and the vibrating signal addition from vibrating signal generation module (16), after amplifying, power amplifier module (18) removes to drive proportion electro-magnet (24), vibrating signal waveform on the proportion electro-magnet (24) that sampling module (19) Real-time Collection is connected with spool (4), and waveform is offered to signal processing module (20), signal processing module (20) separates control signal with the flutter waveform, offer reverse feedback module (21) using control signal as input, the average value information of control signal and vibrating signal are offered to bite chucking judging module (22) as input simultaneously, bite chucking judging module (22) is according to the frequency of input vibrating signal, peak-to-peak value, the average value information of wave distortion and control signal, provide bite by Fuzzy multiple criteria decision-making method, the degree of membership judgement of chucking.
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| CN 201220135715 CN202660046U (en) | 2012-03-31 | 2012-03-31 | Hydraulic valve jamming and chucking detection intelligent controller |
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| CN 201220135715 CN202660046U (en) | 2012-03-31 | 2012-03-31 | Hydraulic valve jamming and chucking detection intelligent controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620047A (en) * | 2012-03-31 | 2012-08-01 | 绍兴文理学院 | Intelligent jamming and chucking detection controller for hydraulic valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620047A (en) * | 2012-03-31 | 2012-08-01 | 绍兴文理学院 | Intelligent jamming and chucking detection controller for hydraulic valve |
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