CN109192046A - A kind of hydraulic circuit comprehensive experiment table Internet-based - Google Patents
A kind of hydraulic circuit comprehensive experiment table Internet-based Download PDFInfo
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- CN109192046A CN109192046A CN201811140639.4A CN201811140639A CN109192046A CN 109192046 A CN109192046 A CN 109192046A CN 201811140639 A CN201811140639 A CN 201811140639A CN 109192046 A CN109192046 A CN 109192046A
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- G09B25/02—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of industrial processes; of machinery
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Abstract
The invention discloses a kind of hydraulic circuit comprehensive experiment tables Internet-based, it is related to teaching equipment technical field, it include: remote control terminal, wirelessly or non-wirelessly transmission module and hydraulic circuit comprehensive experiment table, the remote control terminal remotely controls the hydraulic circuit comprehensive experiment table by described wired or wire transmission module.The present invention can either pass through on-the-spot teaching, again hydraulic test can be realized by remote control, Faculty and Students are facilitated to do the process of hydraulic test, no longer circuit is formed with hose, reduce the degree of wear of hydraulic component in use, the whole risk for reducing hydraulic circuit experiment, while facilitating real-time measurement hydraulic test data, it is highly suitable for hydraulic circuit Comprehensive Experiment.
Description
Technical field
The present invention relates to teaching equipment technical field, in particular to a kind of hydraulic circuit Comprehensive Experiment Internet-based
Platform.
Background technique
In recent years, with the adjustment of revision and the university talents cultivation plan of hydraulic specialized courses outline, colleges and universities are more next
The more culture and raising of emphasis students practical abikty, and the single fixation of structure of existing hydraulic circuit teaching experimental equipment,
It is not able to satisfy the requirement of modern teaching.
Currently, hydraulic circuit experimental bench is mostly transparent equipment or hydraulic time by connecting hydraulic hose composition manually
Road, and hydraulic teaching experimental equipment the degree of automation it is low, it is resistance to force down, circuit forms that flexibility is poor, and experimental field leakage is big, easily
Experimental site is polluted, equipment risk is high.Frequently disassembly hydraulic hose forms circuit system, be easy to cause Hydraulic Elements, attachment
It with the damage of pipe fitting, reduces the service life, increases the loss of oil liquid.Meanwhile with behind hose connection composition circuit, hose layout is numerous
Miscellaneous, chaotic, the performance parameter of key point is difficult to measure in system；Link position be easy to cause because of frequent disassembly, abrasion and is
Falling off after system pressurization, generates the danger and accident in teaching.So teacher, student and leaders are all worried doing very much
Issuable danger when experiment, meanwhile, it tests every time, the preparation amount and the cleaning workload in later period of early period is all very
Greatly, it is reluctant actively scene to be gone to test so as to cause Faculty and Students.
Nowadays, the mode of general teaching experiment is: teacher is in office coaching theoretical knowledge, the experiment to be done of determination, really
Determine experimental period, then leads student or lead student to do related experiment in laboratory by laboratory technician.Such mode cannot reach
It is theoretical with experiment Integral synchronous teaching, experimental facilities be not able to satisfy remote visualization teaching under long-range and Internet of Things is applied and
Experiment, classroom instruction and project field experiment cannot organically be combined, can not achieve teacher, student tests at a distance
And research, so just needing a kind of hydraulic circuit comprehensive experiment table Internet-based.
Summary of the invention
The embodiment of the invention provides a kind of hydraulic circuit comprehensive experiment tables Internet-based, to solve the prior art
The problem of.
A kind of hydraulic circuit comprehensive experiment table Internet-based, comprising: remote control terminal wirelessly or non-wirelessly transmits mould
Block and hydraulic circuit comprehensive experiment table, the remote control terminal remotely control institute by described wired or wire transmission module
State hydraulic circuit comprehensive experiment table；
The hydraulic circuit comprehensive experiment table includes experiment stage body, hydraulic oil source, Hydraulic Experimental System and measurement and control unit, institute
The bottom that hydraulic oil source is mounted on the experiment stage body is stated, the Hydraulic Experimental System is mounted on the upper table of the experiment stage body
Face, the hydraulic oil source and the Hydraulic Experimental System are electrically connected with the measurement and control unit；The measurement and control unit includes watching
Controller, sensor, video camera and industrial control computer are taken, the video camera is mounted on above the experiment stage body；
The Hydraulic Experimental System includes: three-position four-way electromagnetic directional valve and O-shaped three-position four-way electromagnetic directional valve one, described
Three ports of O-shaped three-position four-way electromagnetic directional valve one connect remote-control relief valve one, two and of remote-control relief valve by pipeline respectively
The a port of level-one precursor overflow valve, the three-position four-way electromagnetic directional valve connects level-one precursor overflow valve by pipeline simultaneously
And plate-type non-return valve, another port of the plate-type non-return valve connect accumulator and level-one guide's pressure reducing valve, institute by pipeline
The a port for stating level-one guide's pressure reducing valve is sequentially connected decompression electromagnetic switch valve and remote-control relief valve three by pipeline, described
Another port of level-one guide's pressure reducing valve connects throttling stop valve one and throttling stop valve three, the remote control overflow by pipeline
Another port of valve three connects throttling stop valve two and throttling stop valve four by pipeline；
The throttling stop valve one and the throttling stop valve two-way piping are separately connected O-shaped 3-position 4-way electromagnetic switch
Two ports of valve two, the throttling stop valve three connect Y type solenoid directional control valve, institute with the throttling stop valve four-way piping
Another port for stating O-shaped three-position four-way electromagnetic directional valve two connects one way sequence valve one, the one way sequence valve by pipeline
One another port connects two electromagnetic switch valves and one way sequence valve two by pipeline, two electromagnetic switch valves it is another
Another port of a port and the one way sequence valve two is all connected with hydraulic cylinder one and hydraulic cylinder two, and described O-shaped three four
Another port of electric change valve two connects throttling stop valve five, one-way speed-regulating valve one, throttling stop valve six by pipeline
With one-way speed-regulating valve two, another port of the throttling stop valve five and another port of the one-way speed-regulating valve one pass through
Pipeline is all connected with the another port of the hydraulic cylinder one, and the hydraulic cylinder one is electrically connected travel switch one, the throttle check
Another port of valve six connects the another of the hydraulic cylinder two by pipeline with another port of the one-way speed-regulating valve two
A port, the hydraulic cylinder two are electrically connected travel switch two；
The Y type solenoid directional control valve connects hydraulic control one-way valve by pipeline, and a port of the hydraulic control one-way valve passes through
Pipeline is sequentially connected speed governing valve and throttling stop valve seven, another port of the hydraulic control one-way valve connects unidirectional section by pipeline
Flow valve, another port of the one-way throttle valve connects throttling stop valve eight, throttling stop valve nine and unidirectionally suitable by pipeline
Sequence valve three, another port of the throttling stop valve seven and another port of the throttling stop valve eight are all connected with hydraulic cylinder
Three, another port of the throttling stop valve nine and another port of the one way sequence valve three are electrically connected described hydraulic
Cylinder three is mounted on servo controller and sensor on above-mentioned 35 devices, and electrically connects with the industrial control computer
It connects.
Preferably, the remote control terminal includes: administrator terminal, teacher's terminal and student terminal, the administrator
Terminal wireless connects teacher's terminal and the student terminal, and teacher's terminal wireless connects the student terminal.
The invention has the advantages that: the present invention hydraulic reality can be realized by remote control by on-the-spot teaching
It tests, Faculty and Students is facilitated to do the process of hydraulic test, no longer form circuit with hose, reduce hydraulic component in use
The degree of wear, the whole risk for reducing hydraulic circuit experiment, while facilitating real-time measurement hydraulic test data is very suitable to
For hydraulic circuit Comprehensive Experiment.
Detailed description of the invention
Fig. 1 is a kind of structural representation of hydraulic circuit comprehensive experiment table Internet-based provided in an embodiment of the present invention
Figure；
Fig. 2 is a kind of measurement and control unit of hydraulic circuit comprehensive experiment table Internet-based provided in an embodiment of the present invention
Structural schematic diagram；
Fig. 3 is a kind of hydraulic test system of hydraulic circuit comprehensive experiment table Internet-based provided in an embodiment of the present invention
The structural schematic diagram of system.
Description of symbols:
1- three-position four-way electromagnetic directional valve, 2-O type three-position four-way electromagnetic directional valve one, 3- remote-control relief valve one, 4- remote control
Electromagnetism is used in overflow valve two, 5- level-one precursor overflow valve, 6- plate-type non-return valve, 7- accumulator, 8- level-one guide's pressure reducing valve, 9- decompression
Switch valve, 10- remote-control relief valve three, 11- throttling stop valve one, 12- throttling stop valve two, 13- throttling stop valve three, 14- section
Flow shutoff valve four, 15-O type three-position four-way electromagnetic directional valve two, 16-Y type solenoid directional control valve, 17- one way sequence valve one, 18- liquid
Control check valve, bis- electromagnetic switch valves of 19-, 20- one way sequence valve two, 21- throttling stop valve five, 22- one-way speed-regulating valve one,
23- throttling stop valve six, 24- one-way speed-regulating valve two, 25- speed governing valve, 26- hydraulic cylinder one, 27- travel switch one, 28- throttling are cut
Only valve seven, 29- throttling stop valve eight, 30- one-way throttle valve, 31- hydraulic cylinder two, 32- travel switch two, 33- hydraulic cylinder three,
34- throttling stop valve nine, 35- one way sequence valve three.
Specific embodiment
Below with reference to the attached drawing in inventive embodiments, technical solution in the embodiment of the present invention carries out clear, complete
Description, it is to be understood that the protection scope of the present invention is not limited by the specific implementation manner.
The present invention combines internet-based control technology with hydraulic technique, and devising one kind can be realized scene and long-range
More hydraulic circuit teaching experimental bases of interoperability, meet the needs of modernizing teaching.The present invention solves following technical problem: both
It can be realized the teaching experiment at scene, and can be realized remote operation teaching, keep Faculty and Students mutual using computer or mobile phone etc.
Networked terminals equipment passes through the queuing application of experimental bench in the place of the network signals coverings such as multi-media classroom, the book house of school
System realizes the remote teaching experiment under long-range and the Internet model.
Meanwhile hydraulic circuit experimental bench can complete more than 20 kinds of hydraulic elementary circuits experiments, contain hydraulic curriculum substantially
All hydraulic elementary circuits in teaching, had not only met the classroom instruction and experiment demand of teacher, but also met student resource
Experiment and learning demand；The present invention can by manually adjust and computer servo control to adjust two kinds of regulative modes control it is hydraulic
Valve completes various hydraulic circuits by manual, computer control and long-range control combination at the scene respectively, for testing and teaching
It learns；Experimental bench is equipped with sound equipment picture pick-up device, it can be achieved that long-range at visualized experiment and teaching.Required hydraulic system parameters are equal
It can survey, convenient for teaching, experiment, research.Also solve Hydraulic Elements, attachment, pipe fitting caused by experimental field assembling, disassembly circuit
Damage, the problems such as service life is short and the loss of oil liquid, the teaching of section hydraulic element and hydraulic system performance can also be carried out
And experiment, form open hydraulic test room and hydraulic device.
Referring to Fig.1-3, the present invention provides a kind of hydraulic circuit comprehensive experiment tables Internet-based, comprising: long-range control
Terminal, wirelessly or non-wirelessly transmission module and hydraulic circuit comprehensive experiment table processed, the remote control terminal include: administrator's end
End, teacher's terminal and student terminal, the administrator terminal are wirelessly connected teacher's terminal and the student terminal, the religion
Teacher's terminal wireless connects the student terminal.
The hydraulic circuit comprehensive experiment table includes experiment stage body, hydraulic oil source, Hydraulic Experimental System and measurement and control unit, institute
The bottom that hydraulic oil source is mounted on the experiment stage body is stated, the Hydraulic Experimental System is mounted on the upper table of the experiment stage body
Face, the hydraulic oil source and the Hydraulic Experimental System are electrically connected with the measurement and control unit；The measurement and control unit includes watching
Controller, sensor, video camera and industrial control computer are taken, the video camera is mounted on above the experiment stage body；It is described
Remote control terminal includes: administrator terminal, teacher's terminal and student terminal.
In the design of hydraulic circuit experimental system, according to the hydraulic elementary circuits content on hydraulic circuit teaching material, each height
School classroom says that the syllabus of time service requires and each mechanical speciality student wants the study and experiment of hydraulic circuit
It asks, by hydraulic circuit experimental system design at three parts:
1, the experiment and teaching of a variety of voltage regulating modes are completed in pressure regulation part；
2, a variety of circuits related with single cylinder control are completed in single cylinder control section；
3, a variety of circuits related with twin-tub control are completed in twin-tub control section.
The Basic circuit mainly completed has: the speed control loop of three kinds of throttle-types of constant displacement pump；Pressure dwelling loop, differential circuit, list
To the concatenated Speed changeover circuit of sequence valve, the circuit of counterbalance valve limitation system minimum pressure, three-level pressure-control circuit, second depressurized
Circuit, accumulator pressure maintaining, pump relief circuit, the balanced loop of one way sequence valve, one-way speed-regulating valve parallel connection synchronization loop, stroke control
Twin-tub sequence processed is dynamic to do circuit, twin-tub oil supply loop, self-locking pressure dwelling loop, commutation loop etc..
The Hydraulic Experimental System includes: three-position four-way electromagnetic directional valve 1 and O-shaped three-position four-way electromagnetic directional valve 1, institute
Three ports for stating O-shaped three-position four-way electromagnetic directional valve 1 connect remote-control relief valve 1, remote-control relief valve by pipeline respectively
24 and level-one precursor overflow valve 5, a port of the three-position four-way electromagnetic directional valve 1 connects level-one elder generation by pipeline simultaneously
Overflow valve 5 and plate-type non-return valve 6 are led, another port of the plate-type non-return valve 6 connects accumulator 7 by pipeline and level-one is first
Lead pressure reducing valve 8, a port of the level-one guide pressure reducing valve 8 is sequentially connected decompression electromagnetic switch valve 9 and distant by pipeline
Overflow valve 3 10 is controlled, another port of the level-one guide pressure reducing valve 8 connects throttling stop valve 1 and throttling by pipeline
Another port of shut-off valve 3 13, the remote-control relief valve 3 10 connects throttling stop valve 2 12 and throttle check by pipeline
Valve 4 14；
The throttling stop valve 1 and the throttling stop valve 2 12 are separately connected O-shaped 3-position 4-way electromagnetism by pipeline
Two ports of reversal valve 2 15, the throttling stop valve 3 13 and the throttling stop valve 4 14 connect Y type electricity by pipeline
Another port of magnetic reversal valve 16, the O-shaped three-position four-way electromagnetic directional valve 2 15 connects one way sequence valve one by pipeline
17, another port of the one way sequence valve 1 connects two electromagnetic switch valves 19 and one way sequence valve two by pipeline
20, another port of two electromagnetic switch valves 19 and another port of the one way sequence valve 2 20 are all connected with hydraulic
Cylinder 1 and hydraulic cylinder 2 31, another port of the O-shaped three-position four-way electromagnetic directional valve 2 15 is connected by pipeline to be throttled
Shut-off valve 5 21, one-way speed-regulating valve 1, throttling stop valve 6 23 and one-way speed-regulating valve 2 24, the throttling stop valve 5 21
Another port and another port of the one-way speed-regulating valve 1 are all connected with the another of the hydraulic cylinder 1 by pipeline
Port, the hydraulic cylinder 1 are electrically connected travel switch 1, another port of the throttling stop valve 6 23 and described
Another port of one-way speed-regulating valve 2 24 connects another port of the hydraulic cylinder 2 31, the hydraulic cylinder two by pipeline
31 are electrically connected travel switch 2 32；
The Y type solenoid directional control valve 16 connects hydraulic control one-way valve 18, an end of the hydraulic control one-way valve 18 by pipeline
Mouth is sequentially connected speed governing valve 25 and throttling stop valve 7 28 by pipeline, another port of the hydraulic control one-way valve 18 passes through pipe
Road connects one-way throttle valve 30, another port of the one-way throttle valve 30 connects throttling stop valve 8 29, section by pipeline
Flow shutoff valve 9 34 and one way sequence valve 3 35, another port of the throttling stop valve 7 28 and the throttling stop valve eight
29 another port is all connected with hydraulic cylinder 3 33, another port of the throttling stop valve 9 34 and the one way sequence valve
3 35 another port is electrically connected the hydraulic cylinder 3 33, is mounted on servo controller and sensing on above-mentioned 35 devices
Device, and be electrically connected with the industrial control computer.
Hydraulic system installation is conventional Hydraulic Elements, and the hydraulic reality in scene in laboratory can be completed by manually adjusting
It tests, the servo adjustment system that can also be installed above by these Hydraulic Elements passes through the operating terminal of the multi-media classroom of school
Carry out remote operation experiment.Come below with the experiment that system pressure regulating is partially completed for example, system pressure regulating part is achievable
Experiment has: the experiment such as the three-level pressure regulation of pilot operated compound relief valve, the two-stage pressure-regulating of pressure reducing valve, system unloaded.
The specific method is as follows: three-position four-way electromagnetic directional valve 1 works at middle position or left position, system unloaded；Three four
Electric change valve 1 works at right position, controls O-shaped three-position four-way electromagnetic directional valve 1, achievable pilot operated compound relief valve
Three-level pressure regulation experiment；After the pressure of level-one precursor overflow valve 5 is adjusted, decompression electromagnetic switch valve 9, achievable pressure reducing valve are controlled
Two-stage pressure-regulating.The composition of experimental system be it is open, can explanation according to teacher to hydraulic circuit, tested in real time
Verifying, directly reflects the various actual conditions of hydraulic system.
Referring to table 1, a kind of function of hydraulic circuit comprehensive experiment table Internet-based provided in an embodiment of the present invention is former
Reason introduces table, wherein pressure supply regulating loop refers to the schematic diagram of right end in Fig. 3, and the first from left circuit refers to the original of left end in Fig. 3
Reason figure, right secondary circuit refer to schematic diagram intermediate in Fig. 3, and valve block title is to say that three above hydraulic schematic diagram has done three respectively
Valve block.Table 1
The present invention breaches the limitation of teaching resource space, by experimental facilities, teachers ' teaching equipment and student terminal equipment collection
It is integrally formed, teacher can pass in the operation of room real-time control tele-experimentation equipment of giving lessons, and by experimental data and image
Feedback classroom is a complete true physical system, realizes student's teaching on the spot in person, so that experimental teaching and theory
Teaching is synchronous to be carried out, and organically blending for the two is realized；Fabulous teaching efficiency is achieved in field research using the present invention,
It is mainly manifested in following three aspects: one, improving the learning interest of student；Two, biggish information content of giving lessons can be improved；Three,
Student can not only participate in the overall process Schistosomiasis control at school, but also can pass through magic lantern whenever and wherever possible in library, dormitory
Piece, video, Detection & Controling mode carry out online interaction study, can greatly facilitate the study of student, review, consolidation is learned
Knowledge.
In conclusion the present invention can either can realize hydraulic test by on-the-spot teaching by remote control, it is convenient
The process of hydraulic test is done by Faculty and Students, no longer forms circuit with hose, reduces the abrasion of hydraulic component in use
Degree, the whole risk for reducing hydraulic circuit experiment, while facilitating real-time measurement hydraulic test data, it is highly suitable for liquid
Push back road Comprehensive Experiment.
Disclosed above is only a specific embodiment of the invention, and still, the embodiment of the present invention is not limited to this, is appointed
What what those skilled in the art can think variation should all fall into protection scope of the present invention.
Claims (2)
1. a kind of hydraulic circuit comprehensive experiment table Internet-based characterized by comprising remote control terminal, it is wireless or
Wire transmission module and hydraulic circuit comprehensive experiment table, the remote control terminal pass through the wirelessly or non-wirelessly transmission module
Remotely control the hydraulic circuit comprehensive experiment table；
The hydraulic circuit comprehensive experiment table includes experiment stage body, hydraulic oil source, Hydraulic Experimental System and measurement and control unit, the liquid
Pressure oil source is mounted on the bottom of the experiment stage body, and the Hydraulic Experimental System is mounted on the upper surface of the experiment stage body, institute
Hydraulic oil source and the Hydraulic Experimental System is stated to be electrically connected with the measurement and control unit；The measurement and control unit includes SERVO CONTROL
Device, sensor, video camera and industrial control computer, the video camera are mounted on above the experiment stage body；
The Hydraulic Experimental System includes: three-position four-way electromagnetic directional valve (1) and O-shaped three-position four-way electromagnetic directional valve one (2), institute
It is overflow respectively by pipeline connection remote-control relief valve one (3), remote control three ports for stating O-shaped three-position four-way electromagnetic directional valve one (2)
Valve two (4) and level-one precursor overflow valve (5) are flowed, a port of the three-position four-way electromagnetic directional valve (1) passes through pipeline simultaneously
Level-one precursor overflow valve (5) and plate-type non-return valve (6) are connected, another port of the plate-type non-return valve (6) is connected by pipeline
Accumulator (7) and level-one guide pressure reducing valve (8) are connect, a port of the level-one guide pressure reducing valve (8) is successively connected by pipeline
Decompression electromagnetic switch valve (9) and remote-control relief valve three (10) are connect, another port of the level-one guide pressure reducing valve (8) passes through
Pipeline connects throttling stop valve one (11) and throttling stop valve three (13), another port of the remote-control relief valve three (10) is logical
Piping connects throttling stop valve two (12) and throttling stop valve four (14)；
The throttling stop valve one (11) and the throttling stop valve two (12) are separately connected O-shaped 3-position 4-way electromagnetism by pipeline
Two ports of reversal valve two (15), the throttling stop valve three (13) and the throttling stop valve four (14) are connected by pipeline
Y type solenoid directional control valve (16), another port of the O-shaped three-position four-way electromagnetic directional valve two (15) are connected unidirectional by pipeline
Sequence valve one (17), another port of the one way sequence valve one (17) by pipeline connect two electromagnetic switch valves (19) and
One way sequence valve two (20), another ports of two electromagnetic switch valves (19) and the one way sequence valve two (20) it is another
A port is all connected with hydraulic cylinder one (26) and hydraulic cylinder two (31), the O-shaped three-position four-way electromagnetic directional valve two (15) it is another
A port by pipeline connection throttling stop valve five (21), one-way speed-regulating valve one (22), throttling stop valve six (23) and unidirectionally
Speed governing valve two (24), another port of the throttling stop valve five (21) and another end of the one-way speed-regulating valve one (22)
Mouth is all connected with the another port of the hydraulic cylinder one (26) by pipeline, and the hydraulic cylinder one (26) is electrically connected travel switch one
(27), another port of the throttling stop valve six (23) and another port of the one-way speed-regulating valve two (24) pass through pipe
Road connects another port of the hydraulic cylinder two (31), and the hydraulic cylinder two (31) is electrically connected travel switch two (32)；
The Y type solenoid directional control valve (16) connects hydraulic control one-way valve (18) by pipeline, and one of the hydraulic control one-way valve (18)
Port is sequentially connected speed governing valve (25) and throttling stop valve seven (28), another end of the hydraulic control one-way valve (18) by pipeline
Mouth connects one-way throttle valve (30) by pipeline, another port of the one-way throttle valve (30) passes through pipeline connection throttling and cuts
Only valve eight (29), throttling stop valve nine (34) and one way sequence valve three (35), another end of the throttling stop valve seven (28)
Another port of mouth and the throttling stop valve eight (29) is all connected with hydraulic cylinder three (33), the throttling stop valve nine (34)
Another port and another port of the one way sequence valve three (35) are electrically connected the hydraulic cylinder three (33), and above-mentioned 35
It is mounted on servo controller and sensor on device, and is electrically connected with the industrial control computer.
2. experimental bench as described in claim 1, which is characterized in that the remote control terminal includes: administrator terminal, teacher
Terminal and student terminal, the administrator terminal are wirelessly connected teacher's terminal and the student terminal, teacher's terminal
It is wirelessly connected the student terminal.
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|---|---|
| CN109192046B (en) | 2021-01-22 |
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