CN207396004U - A kind of nuclear island expansion joint shock test platform - Google Patents
A kind of nuclear island expansion joint shock test platform Download PDFInfo
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- CN207396004U CN207396004U CN201721318921.8U CN201721318921U CN207396004U CN 207396004 U CN207396004 U CN 207396004U CN 201721318921 U CN201721318921 U CN 201721318921U CN 207396004 U CN207396004 U CN 207396004U
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- control system
- expansion joint
- test
- computer control
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Abstract
A kind of nuclear island expansion joint shock test platform, including computer control system and hydraulic system；The computer control system sends control signal, 3-position 4-way electrohydraulic servo valve receives the expansion joint to be measured for after control signal the double outlet-rod hydraulic cylinder drivings of abnormity being controlled to be mounted on test-bed body and realizes the required oscillating movement of shock test, and the signal transmission computer control system that the displacement sensor on test-bed body will collect, computer control system sends corresponding control signal after being analyzed and processed to the signal received with setting value, it is achieved thereby that closed-loop control；The utility model has that stability is high, good reliability, it is energy saving the advantages that.
Description
Technical field
The utility model is related to shock test platforms；More particularly to a kind of nuclear island expansion joint shock test platform.
Background technology
In recent years, China's nuclear industry continues to develop, it is ensured that nuclear industry becomes safely the vital task of nuclear industry development, core
Island is by the use of expansion joint as preventing the staple product of nuclear leakage from having played important function in nuclear industry security developments are ensured.On the market
Expansion joint it is multifarious, even if some product radiation protection abilities are enough but anti seismic efficiency can not meet, it is contemplated that expansion joint
Working environment, it is easy in actual use because shock strength is not enough damaged, generate irremediable nuclear leakage and ask safely
Topic；It would therefore be highly desirable to a kind of testing stand that can detect nuclear island expansion joint shock strength.
The content of the invention
The utility model aim is to provide a kind of nuclear island expansion joint shock test platform, solves more than technical problem.
In order to realize above-mentioned technical purpose, reach above-mentioned technology requirement, technical solution is used by the utility model：
A kind of nuclear island expansion joint shock test platform, it is characterised in that：Including computer control system and hydraulic system；The hydraulic pressure system
System includes constant displacement pump combination；The inlet port of the constant displacement pump combination is connected with fuel tank, and oil outlet connects three simultaneously by check valve
The P mouths of position four-way electrohydraulic servo valve are combined with accumulator；A, B mouth of the 3-position 4-way electrohydraulic servo valve go out respectively with special-shaped pair
The left and right chamber of bar hydraulic cylinder is connected, and T mouthfuls take back fuel tank；The double outlet-rod hydraulic cylinders of abnormity pass through connecting rod and test-bed body phase
Even；Displacement sensor is provided on the test-bed body；The computer control system sends control signal, and 3-position 4-way is electro-hydraulic
Servo valve receives the expansion joint to be measured for after control signal the double outlet-rod hydraulic cylinder drivings of abnormity being controlled to be mounted on test-bed body and realizes
The required oscillating movement of shock test, and the signal transmission meter that the displacement sensor on test-bed body will collect
Calculation machine control system, computer control system send corresponding control after being analyzed and processed to the signal received with setting value
Signal, it is achieved thereby that closed-loop control.
Preferably：The computer control system includes computer and data collecting card；The computer is adopted by data
Collect card control 3-position 4-way electrohydraulic servo valve；The computer receives the feedback signal of displacement sensor by data collecting card.
Preferably：Normally to go out rod structure on the right side of the double outlet-rod hydraulic cylinders of abnormity, left side is abnormity, and cylinder body left chamber has
The cylinder of protrusion, the left end of piston have that a cylindrical groove is matched, and the ratio between effective work area of left and right cavity volume is 1:1.
The beneficial effects of the utility model；A kind of nuclear island expansion joint shock test platform, compared with traditional structure：The experiment
Platform enables to expansion joint to be measured to realize the oscillating movement of setting, simulates the working condition of expansion joint, realizes to expansion joint
The detection of shock strength has many advantages, such as that good reliability, stability are high, control accuracy is high.
Description of the drawings
Fig. 1 is Tthe utility model system schematic diagram；
In figure：1. computer control system；11. computer；12. data collecting card；2. hydraulic system；It is 21. fixed
Pump group is measured to close；22. fuel tank；23. check valve；24. 3-position 4-way electrohydraulic servo valve；25. accumulator combines；It is 26. special-shaped double
3. connecting rod of outlet-rod hydraulic cylinder；4. test-bed body；41. displacement sensor.
Specific embodiment
In order to become apparent from the goal of the invention of the utility model, technical solution and its advantageous effects, below in conjunction with
The utility model is further elaborated in the drawings and specific embodiments；
In the accompanying drawings：A kind of nuclear island expansion joint shock test platform, including computer control system 1 and hydraulic system 2；Institute
Stating hydraulic system 2 includes constant displacement pump combination 21；The inlet port of the constant displacement pump combination 21 is connected with fuel tank 22, constant displacement pump combination 21
Inlet port be connected by filter with fuel tank 22；Oil outlet connects 3-position 4-way electrohydraulic servo valve 24 simultaneously by check valve 23
P mouths combine 25 with accumulator；Wherein constant displacement pump combination 21 has two constant displacement pumps and overflow valve, be divided into a quantitative pump work and
Two constant displacement pumps work at the same time two kinds of operating modes, for the different traffic demand of system, realize classification fuel feeding, reduce energy consumption；Its
Middle accumulator combination 25 has three accumulators, is respectively provided with high, medium and low three kinds of different operating pressures, is divided into low pressure accumulator
Work, the work of low-voltage and medium voltage accumulator and three accumulators, three kinds of operating modes of work, meet flow of the system under without pressure and mend
Repay demand；Left and right chamber of A, B mouth of the 3-position 4-way electrohydraulic servo valve 24 respectively with special-shaped double outlet-rod hydraulic cylinders 26 is connected, T
Mouth takes back fuel tank 22；The double outlet-rod hydraulic cylinders 26 of abnormity are connected by connecting rod 3 with test-bed body 4；On the test-bed body 4
It is provided with displacement sensor 41；The computer control system 1 sends control signal, and 3-position 4-way electrohydraulic servo valve 24 receives control
The expansion joint to be measured that the double drivings of outlet-rod hydraulic cylinder 26 of abnormity are mounted on test-bed body 4 is controlled to realize shock test institute after signal processed
The oscillating movement of demand, and the signal transmission computer control that the displacement sensor 41 on test-bed body 4 will collect
System 1 processed, computer control system 1 send corresponding control letter after being analyzed and processed to the signal received with setting value
Number, it is achieved thereby that closed-loop control；The utility model has that stability is high, good reliability, it is energy saving the advantages that, additionally it is possible to measure swollen
The fatigue strength of swollen section.
The computer control system 1 includes computer 11 and data collecting card 12；The computer 11 is adopted by data
Truck 12 controls 3-position 4-way electrohydraulic servo valve 24；The computer 11 receives displacement sensor 41 by data collecting card 12
Feedback signal.
Double 26 right sides of outlet-rod hydraulic cylinder of abnormity is normally go out rod structure, and left side is abnormity, and cylinder body left chamber has protrusion
Cylinder, the left end of piston has that a cylindrical groove is matched, and the ratio between effective work area of left and right cavity volume is 1:1.
The specific implementation of the utility model：According to the nuclear island expansion joint of varying strength requirement, phase is set in computer 11
The test intensity answered transfers control signal to 3-position 4-way electrohydraulic servo valve 24 so that abnormity is double by pci data capture card 12
Outlet-rod hydraulic cylinder 26 drives the expansion joint to be measured on test-bed body 4 to realize that the required vibration of shock test is transported by connecting rod 3
It is dynamic；Displacement sensor 41 gathers corresponding monitoring data and is transferred to pci signal capture card 12, imports in computer 11 and is divided
Analysis, so as to draw measurement result.
Claims (3)
1. a kind of nuclear island expansion joint shock test platform, it is characterised in that：Including computer control system（1）And hydraulic system
（2）；The hydraulic system（2）It is combined including constant displacement pump（21）；The constant displacement pump combination（21）Inlet port and fuel tank（22）Even
It connects, oil outlet passes through check valve（23）Connect 3-position 4-way electrohydraulic servo valve simultaneously（24）P mouths combined with accumulator（25）；Institute
State 3-position 4-way electrohydraulic servo valve（24）A, B mouth respectively with special-shaped double outlet-rod hydraulic cylinders（26）Left and right chamber be connected, T mouthfuls take back
Fuel tank（22）；The double outlet-rod hydraulic cylinders of abnormity（26）Pass through connecting rod（3）With test-bed body（4）It is connected；The test-bed body
（4）On be provided with displacement sensor（41）；The computer control system（1）Send control signal, 3-position 4-way electro-hydraulic servo
Valve（24）The double outlet-rod hydraulic cylinders of abnormity are controlled after receiving control signal（26）Driving is mounted on test-bed body（4）On expansion to be measured
Section realizes the required oscillating movement of shock test, and mounted on test-bed body（4）On displacement sensor（41）It again will acquisition
The signal transmission computer control system arrived（1）, computer control system（1）The signal and setting value received is analyzed
Corresponding control signal is sent after processing, it is achieved thereby that closed-loop control.
2. a kind of nuclear island according to claim 1 expansion joint shock test platform, it is characterised in that：The computer control
System（1）Including computer（11）And data collecting card（12）；The computer（11）Pass through data collecting card（12）Control three
Position four-way electrohydraulic servo valve（24）；The computer（11）Pass through data collecting card（12）Receive displacement sensor（41）Feedback
Signal.
3. a kind of nuclear island according to claim 1 expansion joint shock test platform, it is characterised in that：The double rods of abnormity
Hydraulic cylinder（26）Right side is normally goes out rod structure, and left side is abnormity, and cylinder body left chamber has the cylinder of protrusion, and the left end of piston has
One cylindrical groove is matched, and the ratio between effective work area of left and right cavity volume is 1:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721318921.8U CN207396004U (en) | 2017-10-13 | 2017-10-13 | A kind of nuclear island expansion joint shock test platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721318921.8U CN207396004U (en) | 2017-10-13 | 2017-10-13 | A kind of nuclear island expansion joint shock test platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207396004U true CN207396004U (en) | 2018-05-22 |
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ID=62332104
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721318921.8U Active CN207396004U (en) | 2017-10-13 | 2017-10-13 | A kind of nuclear island expansion joint shock test platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111929427A (en) * | 2020-07-01 | 2020-11-13 | 中国核电工程有限公司 | Rubber expansion joint performance test verification method |
-
2017
- 2017-10-13 CN CN201721318921.8U patent/CN207396004U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111929427A (en) * | 2020-07-01 | 2020-11-13 | 中国核电工程有限公司 | Rubber expansion joint performance test verification method |
| CN111929427B (en) * | 2020-07-01 | 2023-04-07 | 中国核电工程有限公司 | Rubber expansion joint performance test verification method |
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