CN201122376Y - Hydraulic system synthetic experimental device with intelligent examination function - Google Patents
Hydraulic system synthetic experimental device with intelligent examination function Download PDFInfo
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- CN201122376Y CN201122376Y CNU2007201131871U CN200720113187U CN201122376Y CN 201122376 Y CN201122376 Y CN 201122376Y CN U2007201131871 U CNU2007201131871 U CN U2007201131871U CN 200720113187 U CN200720113187 U CN 200720113187U CN 201122376 Y CN201122376 Y CN 201122376Y
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Abstract
The utility model discloses an integrated experimental device of a hydraulic system with intelligent assessment function. A computer is connected with a data collecting and controlling unit, a switch unit used for fault establishing and fault eliminating, an integrated experimental table for the hydraulic system, a signal adjusting unit and a data collecting and controlling unit. The internal module connecting relationship of the data collecting and controlling unit is as follows: an interface chip is respectively connected with a driver and a signal adjusting module, the interface chip and an analog-digital converter are respectively joined in a bus line. The integrated experimental device has the advantages that firstly, the fault establishment and elimination of the hydraulic system are realized through adopting the combination of software and hardware, and an intelligent assessment software is provided; secondly, the fault establishing is more convenient, the computer can accomplish one of the faults establishing, and the faults are divided into three classes of breaking off, short circuit and unsteady work; thirdly, not only the experiment of hydraulic driving fundamental circuit can be realized without computer, but also the function of the real-time inspection, the analysis, the fault establishment and the fault elimination can be accomplished by the computer.
Description
Technical field
The utility model relates to a kind of hydraulic system comprehensive experimental device with intelligent check function.
Background technology
Hydraulic system has that power is big, stable working and can realize on a large scale in distinct advantages such as stepless speed regulation, it uses extensive day by day as the topworks of plant equipment Process Control System and automated system and the gearing of various power transmission instruments.Universities and colleges such as each special secondary school, junior college, professorship, undergraduate course, postgraduate have offered courses such as " hydrostatic transmission ", " hydrostatic transmission and control ", " Failure Diagnosis of Hydraulic System and maintenance " accordingly and have cultivated relevant technician, and experiment is the crucial teaching link of this type of course, it can not only consolidate, widen the knowwhy that the student learns, and can cultivate the ability of students ' analysis and solution practical problems.Hydraulic system comprehensive experimental device with intelligent check function arises at the historic moment under above-mentioned background.
The hydraulic system comprehensive experiment table of at present domestic each science and education company development, mainly can be divided into two big classes: a class is a plain edition hydraulic system comprehensive experiment table.This type of experiment table requires to design according to teaching characteristic and hydrostatic transmission course teaching outline, adopts the Hydraulic Elements and the modular design of standard, constitutes to patch system in combination easily.On this type of experiment table, can carry out hydrostatic transmission fundamental circuit experiment, as the sequentially-operating loop of simple pressure setting loop, employing sequence valve, the relief circuit of employing pilot operated compound relief valve etc., can cultivate and improve student's designed capacity, manipulative ability and comprehensive using ability by this type of experiment table.In addition, the student also can design, assemble the experiment of expansion hydraulic circuit voluntarily on this experiment table.Another kind of is the hydraulic system comprehensive experiment table with online measuring ability.Because there are shortcomings such as experimental error is big, efficient is low in common hydraulic system comprehensive experiment table, therefore, domestic each science and education equipment company develops the hydraulic system comprehensive experiment table with online measuring ability on the basis of common experiment table.This type of experiment table adopts automatically and detects, numeral shows, CAT system, thereby has improved measuring accuracy and conventional efficient.
Summary of the invention
The purpose of this utility model provides a kind of hydraulic system comprehensive experimental device with intelligent check function.
Have computing machine in the hydraulic system comprehensive experimental device of intelligent check function with data acquisition and control module, be used for the fault setting and be connected with switch element, hydraulic system comprehensive experiment table, signal condition unit, data acquisition and the control module that fault is got rid of.
The internal module annexation of described data acquisition and control module is: interface chip is touched piece with driver, signal condition respectively and is connected, and interface chip, analog to digital converter insert bus respectively.Being used for the switch element that fault setting and fault get rid of is: first controller is connected with first switching device, and is connected with first actuator after the parallel connection of second switch device.Being used for the switch element that fault setting and fault get rid of is: second controller is connected with the 3rd switching device, second actuator with after the 4th switching device is in parallel.
The beneficial effect that the utlity model has
1) adopts software and hardware combining to realize the setting and the eliminating of hydraulic system fault, and have intelligent check software;
2) it is comparatively convenient fault to be set.Can finish setting to a certain road fault by computing machine, fault is divided into disconnection, short circuit, unstable three classes of work;
3) can divorced from computer realize the experiment of hydrostatic transmission fundamental circuit, can finish real-time detection by computing machine again, analyze, be provided with the fault and the function of fixing a breakdown.
Description of drawings
Fig. 1 is the structural representation with hydraulic system comprehensive experimental device of intelligent check function;
Fig. 2 is the circuit block diagram of the utility model data acquisition and control module;
Fig. 3 is the circuit block diagram that the utility model is used for fault setting and fault eliminating switch element I;
Fig. 4 is the circuit block diagram that the utility model is used for fault setting and fault eliminating switch element II;
Fig. 5 is the utility model hydraulic system comprehensive experiment table structural representation.
Embodiment
As shown in Figure 1, have computing machine in the hydraulic system comprehensive experimental device of intelligent check function with data acquisition and control module, be used for the fault setting and be connected with switch element, hydraulic system comprehensive experiment table, signal condition unit, data acquisition and the control module that fault is got rid of.
Hydraulic system comprehensive experimental device with intelligent check function, be on the basis of plain edition hydraulic system comprehensive experiment table, increased temperature sensor, flow sensor, pressure transducer, with the single-chip microcomputer is control core device (or general A/D, the D/A plate), computing machine etc., expanded the function of native system on the one hand greatly, not only can do basic hydraulic pressure comprehensive test, test as differential circuit, the multi-stage pressure regulating loop test, multi-cylinder sequential control loop test, throttling valve entrance throttle governing circuit loop test, the test of flow speed control valve meter out speed control loop, the test of secondary pressure-control circuit, the pressure reducing circuit test, the speed changing-over loop test of flow speed control valve series connection, the speed changing-over loop test of flow speed control valve parallel connection, the relief circuit test of three position four-way electromagnetic valve (M type), the relief circuit test of precursor overflow valve, the sequentially-operating loop test of sequence valve, sequentially-operating loop test near switch, the sequentially-operating loop test of pressure switch, the two closed circuit loop test of hydraulic control one-way valve, the balanced loop test of sequence valve, two-stage speed control loop test etc., and can do the specificity analysis experiment of Hydraulic Elements, as the quiet dynamic characteristic experiment of vane pump, the quiet dynamic characteristic experiment of surplus valve, hydraulic system pressure forms and the specificity analysis experiment, flow speed control valve and throttling valve load characteristic relatively reach analysis etc.; On the other hand, can also can fix a breakdown by computing machine, and develop intelligent check function on the software by the computer installation fault, by the student is arranged Downtime, the analysis-by-synthesis of the row's of reaching barrier process draws student's mark.
As shown in Figure 2, the internal module annexation of data acquisition and control module is: interface chip is connected with driver, signal condition module respectively, and interface chip, analog to digital converter insert bus respectively.
As shown in Figure 3, be used for the switch element I that fault setting and fault get rid of and be: first controller is connected with first switching device, and is connected with first actuator after the parallel connection of second switch device.Wherein a kind of scheme is that switching device is connected earlier with controller, and then in parallel.Under non-failure conditions, the first switching device closure, the second switch device is opened.If wish open circuit fault is set, require first switching device and switching device 2 all to open.If wish to be provided with the short circuit fault, only need second switch device closure.If wish the unstable fault of the work that is provided with, first switching device and second switch device are arbitrarily switched;
As shown in Figure 4, be used for the switch element II that fault setting and fault get rid of and be: second controller is connected with the 3rd switching device, second actuator with after the 4th switching device is in parallel.Another kind of scheme is that switching device is earlier in parallel with controller, and then series connection.Under non-failure conditions, the 3rd switching device closure, the 4th switching device is opened.If wish to be provided with open circuit fault, only need the 3rd switching device to open.If wish the short circuit fault is set, require the 3rd switching device and the 4th switching device all closed.If wish the unstable fault of the work that is provided with, the 3rd switching device and the 4th switching device are arbitrarily switched.
As shown in Figure 5, the hydraulic system comprehensive experiment table is made up of parameter detection module such as pressure forming module, Hydraulic Elements detection module, flow speed temperature and two-way cylinder rate control module.The effect of pressure forming module is to form pressure, mainly regulates Hydraulic Elements such as surplus valve, system pressure loading and unloading direction valve by fuel tank, variable output pump, safety valve, system pressure and forms.The Hydraulic Elements detection module is made up of Hydraulic Elements such as pilot operated compound relief valve and direction valves, can detect pilot operated compound relief valve and direction valve, fault analysis and eliminating thereof.Parameter detection module such as flow, speed, temperature are made up of oval gear flowmeter, measuring cup, direction valve etc., and major function is to flow, speed, the isoparametric detection of temperature, as: 1) the small-sized hydraulic fork truck lean forward, the detection of hypsokinesis speed; 2) detection of the die sinking of small plastic injection machine, closure pressing speed; 3) the small-sized hydraulic mechanical arm detection of speed etc. that moves up and down and seesaw.The two-way cylinder rate control module is made up of two-way cylinder, loading cylinder, charge valve, direction valve, throttling valve, sensor etc.Can simulate that the small-sized hydraulic fork truck leans forward, the control of hypsokinesis speed, the control of the die sinking of small plastic injection machine, closure pressing speed, the speed control that the small-sized hydraulic mechanical arm moves up and down and seesaws etc.
Claims (4)
1. hydraulic system comprehensive experimental device with intelligent check function, it is characterized in that computing machine with data acquisition and control module, be used for the fault setting and be connected with switch element, hydraulic system comprehensive experiment table, signal condition unit, data acquisition and the control module that fault is got rid of.
2. a kind of hydraulic system comprehensive experimental device according to claim 1 with intelligent check function, the internal module annexation that it is characterized in that described data acquisition and control module is: interface chip is connected with driver, signal condition module respectively, and interface chip, analog to digital converter insert bus respectively.
3. a kind of hydraulic system comprehensive experimental device according to claim 1 with intelligent check function, it is characterized in that describedly being used for the switch element that fault setting and fault get rid of and being: first controller is connected with first switching device, and is connected with first actuator after the parallel connection of second switch device.
4. a kind of hydraulic system comprehensive experimental device according to claim 1 with intelligent check function, it is characterized in that describedly being used for the switch element that fault setting and fault get rid of and being: second controller is connected with the 3rd switching device, second actuator with after the 4th switching device is in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201131871U CN201122376Y (en) | 2007-08-16 | 2007-08-16 | Hydraulic system synthetic experimental device with intelligent examination function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNU2007201131871U CN201122376Y (en) | 2007-08-16 | 2007-08-16 | Hydraulic system synthetic experimental device with intelligent examination function |
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| CN201122376Y true CN201122376Y (en) | 2008-09-24 |
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| CNU2007201131871U Expired - Fee Related CN201122376Y (en) | 2007-08-16 | 2007-08-16 | Hydraulic system synthetic experimental device with intelligent examination function |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104900127A (en) * | 2014-03-07 | 2015-09-09 | 湖南众航科技有限公司 | Hydraulic and air pressure fault diagnosis and maintenance experiment table |
| CN107387495A (en) * | 2017-06-19 | 2017-11-24 | 镇江四联机电科技有限公司 | A kind of modularization hydraulic test testing stand |
| CN109192046A (en) * | 2018-09-28 | 2019-01-11 | 西北工业大学 | A kind of hydraulic circuit comprehensive experiment table Internet-based |
| CN111326041A (en) * | 2020-03-09 | 2020-06-23 | 北京智联友道科技有限公司 | Teaching system for interlocking system training |
-
2007
- 2007-08-16 CN CNU2007201131871U patent/CN201122376Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104900127A (en) * | 2014-03-07 | 2015-09-09 | 湖南众航科技有限公司 | Hydraulic and air pressure fault diagnosis and maintenance experiment table |
| CN107387495A (en) * | 2017-06-19 | 2017-11-24 | 镇江四联机电科技有限公司 | A kind of modularization hydraulic test testing stand |
| CN109192046A (en) * | 2018-09-28 | 2019-01-11 | 西北工业大学 | A kind of hydraulic circuit comprehensive experiment table Internet-based |
| CN111326041A (en) * | 2020-03-09 | 2020-06-23 | 北京智联友道科技有限公司 | Teaching system for interlocking system training |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HANGZHOU ZHEYOU ENERGY TECHNOLOGY CO., LTD. Free format text: FORMER NAME: HANGZHOU ZHEYOU SCIENCE + TEACHING INSTRUMENT CO., LTD. |
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| CP03 | Change of name, title or address |
Address after: 310013, room 402, No. 301, Xihu District, Zhejiang, Hangzhou, Wensanlu Road Patentee after: Hangzhou Zheyou Energy Technology Co., Ltd. Address before: 310012 No. 83, Xueyuan Road, Zhejiang, Hangzhou Patentee before: Hangzhou Zheyou Science & Teaching Instrument Co., Ltd. |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080924 Termination date: 20120816 |