CN202195990U - Impulse cycle-testing apparatus - Google Patents
Impulse cycle-testing apparatus Download PDFInfo
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- CN202195990U CN202195990U CN2011201849351U CN201120184935U CN202195990U CN 202195990 U CN202195990 U CN 202195990U CN 2011201849351 U CN2011201849351 U CN 2011201849351U CN 201120184935 U CN201120184935 U CN 201120184935U CN 202195990 U CN202195990 U CN 202195990U
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- hydraulic system
- testing
- pulse
- impulse
- pressure
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Abstract
The utility model relates to an impulse cycle-testing apparatus, which comprises a hydraulic pressure system, a temperature control system, an impulse generation apparatus, a computer testing and control system and a fixture system. The hydraulic pressure system comprises a main hydraulic pressure system which provides pressure and power for an impulse, and an auxiliary hydraulic pressure system which meets the oil supplement requirement of testing pieces in the process of the testing, wherein the auxiliary hydraulic pressure system is connected with the fixture system. The impulse cycle-testing apparatus can continuously generate the pressure impulse to be exerted on the testing pieces according to the specific type of the testing pieces and the relevant requirements of the pressure levels. Meanwhile, the impulse cycle-testing apparatus can conveniently, rapidly and accurately verify the times of the pressure impulse which the testing pieces can bear.
Description
Technical field
The utility model relates to a kind of pulse cycle test unit.
Background technology
Existing a kind of pulse cycle test unit can produce pressure pulse and be applied on the testpieces; Pulse to testpieces (pressurized strut, hydraulic services) bears in its life span is verified; But existing pulse cycle test unit does not have oil-supplementing system, can not be to being carried out exhaust work by test specimen before test.
In addition, existing pulse cycle test unit does not have supercharger, and most of pipeline and annex can only under low pressure be worked, and the life-span of testing table self is shorter.
The utility model content
The purpose of the utility model is a kind of pulse cycle test unit to be provided, to solve problems of the prior art to the defective of prior art existence.
To achieve these goals, the technical scheme of the utility model is following:
The pulse cycle test unit; Comprise hydraulic system, temperature control system, pulse generating unit, computer measurement and control system and chucking appliance system; It is characterized in that; Said hydraulic system comprises main hydraulic system that pulse power is provided and the auxiliary hydraulic system that satisfies repairing needs in the testpieces process of the test, and said auxiliary hydraulic system is connected with chucking appliance system.
In the utility model, the oil circuit between said main hydraulic system and the auxiliary hydraulic system is isolated through supercharger relatively.
In the utility model; Said pulse generating unit comprises accumulator, electrohydraulic servo valve, solenoid directional control valve, supercharger; Said main hydraulic system is connected with accumulator through electrohydraulic servo valve, and said main hydraulic system is connected with supercharger through electrohydraulic servo valve, solenoid directional control valve.
In the utility model, said computer measurement and control system is the industrial computer that has graphical interfaces, can need, provide the optional operating condition of test of parameter to different tests.Further, in the utility model, said industrial computer has fault processing module and alarm module.
The utility model can be according to particular type, other related request of pressure stage of testpieces, produces pressure pulse continuously and is applied on the testpieces, can verify by pressure pulse number of times convenient, fast, that can bear testpieces accurately simultaneously.
The utility model is used the electrohydraulic servo valve of the roomy flow of high frequency, has realized the closed-loop control of digital machine, can accomplish test of water hammer ripple and trapezoidal wave test.
The utility model has adopted supercharger, and most of pipeline and annex are worked under mesolow, has prolonged the life-span of testing table self; Because supercharger has been isolated the oil circuit between test section and the main pump source, thereby can be extended to thermocycling.
The utility model has adopted auxiliary hydraulic system, is mainly used in preceding the resetting by the exhaust work of test specimen and intensifier piston of test.
It is the hardware environment on basis and the software environment that Windows provides that the utility model is selected industrial computer for use, has graphical interfaces, can need to different tests, provides parameter optional operating condition of test.Pressure waveform can show in real time, and by actual requirement, with trystate, logging hereof.And fault handling and warning function arranged.
Description of drawings
Specify the utility model below in conjunction with accompanying drawing and embodiment:
Fig. 1 is the composition diagram of the utility model.
Fig. 2 is the fundamental diagram of the utility model.
Wherein, 1, liquid level gauge; 2, temperature sensor; 3, oil filter; 4, motor; 5, oil pump; 6, heating radiator; 7, oil filter; 8, oil pump; 9, motor; 10, pressure transducer; 11, hydraulic oil filter; 12, pressure meter switch; 13, tensimeter; 14, safety valve; 15, electricity liquid ratio relief valve; 16, retaining valve; 17, switch; 18, pressure transducer; 19, accumulator; 20, parallel port; 21, electrohydraulic servo valve; 22, pressure transducer; 23, supercharger; , 24 displacement transducers; 25, solenoid directional control valve; 26, pressure meter switch; 27, tensimeter; 28, retaining valve; 29, switch; 30, accumulator; 31, pressure transducer; 32, switch; 33, hydraulic oil filter; 34, safety valve; 35, oil pump; 36, oil filter; 37, motor; 38, switch; 39, electro-hydraulic reversing valve; 40, pressure transducer; 41, temperature sensor; 42, testpieces.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, further set forth the utility model below in conjunction with specific embodiment.
Referring to Fig. 1 and 2; The pulse cycle test unit; Comprise hydraulic system, temperature control system 200, pulse generating unit 300, computer measurement and control system 400 and chucking appliance system 500; The auxiliary hydraulic system 120 that hydraulic system comprises the main hydraulic system 110 that pulse power is provided and satisfies repairing needs in pressurized strut (testpieces) process of the test, auxiliary hydraulic system 120 is connected with chucking appliance system 500.Oil circuit between main hydraulic system 110 and the auxiliary hydraulic system 120 is isolated through supercharger relatively.Main hydraulic system, auxiliary hydraulic system all comprise motor and oil pump.
Pulse generating unit comprises accumulator 19, electrohydraulic servo valve 21, solenoid directional control valve 25, supercharger 23; Main hydraulic system 110 is connected with accumulator 19 through electrohydraulic servo valve 21, and main hydraulic system 110 is connected with supercharger 23 through electrohydraulic servo valve 21, solenoid directional control valve 25.
Computer measurement and control system is the industrial computer that has graphical interfaces, can need, provide the optional operating condition of test of parameter to different tests.Industrial computer has fault processing module and alarm module.
Before the test; Open stop valve (switch) 29 and stop valve (switch) 38; Start the oil pump 35 of auxiliary hydraulic system; Make its total travel to-and-fro movement through electro-hydraulic reversing valve 39 control pressurized strut test specimens then, the air in pressurized strut test specimen and auxiliary hydraulic system discharge fully and be full of hydraulic oil till (this process is injected the hydraulic oil of certain pressures simultaneously for accumulator 30.Pressure in the accumulator 30 can be set up through safety valve 34.Close oil pump 35 and stop valve (switch) 38 then.
Start oil pump 8, give accumulator 19 input hydraulic pressures, make it reach the force value of regulation.The output pressure of oil pump 8 is set up by electricity liquid ratio relief valve 15.Then, give electrohydraulic servo valve 21 input instruction signals, make hydraulic oil pass to solenoid directional control valve 25 through electrohydraulic servo valve 21 through computer measurement and control system.Simultaneously, control the switching-over work that solenoid directional control valve 25 opens and closes by certain frequency.When solenoid directional control valve 25 was opened rapidly, pressure oil promoted supercharger 23 and is testpieces input pulse pressure.Required pressure mainly is in a flash that accumulator 30 provides at this; Therefore the oil pressure of accumulator can descend moment; Constantly oil-filled with rear pump or output pump to accumulator; The oil pressure of accumulator just returns to set condition up to second pulse arrive (pressure fluctuation in the accumulator is as far as possible little, steady state pressure is constant in order to make, and accumulator must have enough big capacity).Pulse value in the testpieces is detected by pressure transducer 40; And convert into the proportional electric signal of pulse and feed back to control system; After feedback signal and instruction signal compares, draw deviation signal and be input in the servo-valve, change the openings of sizes of electrohydraulic servo valve 21; Actual pressure value in the pressurized strut is changed towards the direction that error reduces with respect to command value, equal up to force value till the value of command signal defined.
When the fluid of supercharger 23 high pressure chests reduced to a certain degree because of reasons such as micro-leakages, the displacement transducer 24 that is installed on the supercharger 23 will send the signal that needs repairing because of the change of intensifier piston position.At this moment starting oil pump 35 replenishes hydraulic oil for accumulator 30 and supercharger high pressure chest.
The temperature of hydraulic oil is controlled in the scope of requirement by attemperating unit.
More than show and described the advantage of ultimate principle, principal character and the utility model of the utility model.The technician of the industry should understand; The utility model is not restricted to the described embodiments; The just principle of describing in the foregoing description and the instructions of the utility model; The utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these variations and improvement all fall in the scope of the utility model that requires protection.The protection domain that the utility model requires is defined by appending claims and equivalent thereof.
Claims (5)
1. pulse cycle test unit; Comprise hydraulic system, temperature control system, pulse generating unit, computer measurement and control system and chucking appliance system; It is characterized in that; Said hydraulic system comprises main hydraulic system that pulse power is provided and the auxiliary hydraulic system that satisfies repairing needs in the testpieces process of the test, and said auxiliary hydraulic system is connected with chucking appliance system.
2. pulse cycle test unit according to claim 1 is characterized in that the oil circuit between said main hydraulic system and the auxiliary hydraulic system is isolated through supercharger relatively.
3. pulse cycle test unit according to claim 1; It is characterized in that; Said pulse generating unit comprises accumulator, electrohydraulic servo valve, solenoid directional control valve, supercharger; Said main hydraulic system is connected with accumulator through electrohydraulic servo valve, and said main hydraulic system is connected with supercharger through electrohydraulic servo valve, solenoid directional control valve.
4. pulse cycle test unit according to claim 1 is characterized in that, said computer measurement and control system is the industrial computer that has graphical interfaces, can need, provide the optional operating condition of test of parameter to different tests.
5. pulse cycle test unit according to claim 4 is characterized in that said industrial computer has fault processing module and alarm module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201849351U CN202195990U (en) | 2011-06-02 | 2011-06-02 | Impulse cycle-testing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201849351U CN202195990U (en) | 2011-06-02 | 2011-06-02 | Impulse cycle-testing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202195990U true CN202195990U (en) | 2012-04-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201849351U Expired - Fee Related CN202195990U (en) | 2011-06-02 | 2011-06-02 | Impulse cycle-testing apparatus |
Country Status (1)
| Country | Link |
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| CN (1) | CN202195990U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103983406A (en) * | 2014-05-07 | 2014-08-13 | 青岛双凌科技设备有限公司 | Low-temperature seal performance testing device for automobile brake rubber packing cup |
| CN104236835A (en) * | 2014-09-30 | 2014-12-24 | 北京理工大学 | Hydraulic pulse type sealing-detecting vibration test table |
| WO2015039429A1 (en) * | 2013-09-17 | 2015-03-26 | 深圳市瑞格尔仪器有限公司 | High-frequency impulse generator and loading system thereof |
| CN105716822A (en) * | 2016-01-28 | 2016-06-29 | 武汉信测标准技术服务有限公司 | Control method and device for low-pressure pulse duration test of automobile part |
| CN106769066A (en) * | 2017-01-12 | 2017-05-31 | 无锡帕捷科技有限公司 | Pulse generator and pulse test device |
| CN107355433A (en) * | 2017-07-06 | 2017-11-17 | 杭州华泰电液成套技术有限公司 | Electric connector pulling-out force test device and its method |
| CN112903451A (en) * | 2021-01-27 | 2021-06-04 | 中国石油大学(华东) | Direct tensile test instrument of annular rock sample |
-
2011
- 2011-06-02 CN CN2011201849351U patent/CN202195990U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015039429A1 (en) * | 2013-09-17 | 2015-03-26 | 深圳市瑞格尔仪器有限公司 | High-frequency impulse generator and loading system thereof |
| CN103983406A (en) * | 2014-05-07 | 2014-08-13 | 青岛双凌科技设备有限公司 | Low-temperature seal performance testing device for automobile brake rubber packing cup |
| CN104236835A (en) * | 2014-09-30 | 2014-12-24 | 北京理工大学 | Hydraulic pulse type sealing-detecting vibration test table |
| CN104236835B (en) * | 2014-09-30 | 2017-09-15 | 北京理工大学 | A kind of hydraulic impulse formula sealing detection vibration experiment table |
| CN105716822A (en) * | 2016-01-28 | 2016-06-29 | 武汉信测标准技术服务有限公司 | Control method and device for low-pressure pulse duration test of automobile part |
| CN105716822B (en) * | 2016-01-28 | 2019-11-08 | 武汉信测标准技术服务有限公司 | Control method and device for automobile component action of low-voltage pulse endurance test |
| CN106769066A (en) * | 2017-01-12 | 2017-05-31 | 无锡帕捷科技有限公司 | Pulse generator and pulse test device |
| CN106769066B (en) * | 2017-01-12 | 2023-11-17 | 无锡帕捷科技有限公司 | Pulse pressure generator and pulse pressure testing device |
| CN107355433A (en) * | 2017-07-06 | 2017-11-17 | 杭州华泰电液成套技术有限公司 | Electric connector pulling-out force test device and its method |
| CN112903451A (en) * | 2021-01-27 | 2021-06-04 | 中国石油大学(华东) | Direct tensile test instrument of annular rock sample |
| CN112903451B (en) * | 2021-01-27 | 2022-12-16 | 中国石油大学(华东) | Direct tensile test instrument of annular rock sample |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120418 Termination date: 20150602 |
|
| EXPY | Termination of patent right or utility model |