CN205333442U - Pressure pulse test hydraulic system for rubber hose detection - Google Patents
Pressure pulse test hydraulic system for rubber hose detection Download PDFInfo
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- CN205333442U CN205333442U CN201521105564.8U CN201521105564U CN205333442U CN 205333442 U CN205333442 U CN 205333442U CN 201521105564 U CN201521105564 U CN 201521105564U CN 205333442 U CN205333442 U CN 205333442U
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- oil
- fuel tank
- hydraulic
- pressure pulse
- hydraulic system
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Abstract
The utility model belongs to the technical field of rubber detects, especially, relate to an experimental hydraulic system of pressure pulse for flexible rubber hose detects, its characterized in that includes oil tank, hydraulic pulse generating device, mends oily device, the fuel feeding mouth of oil tank, oil return opening respectively with hydraulic pulse generating device's fuel feeding mouth, oil return opening are connected, mend oily device's benefit oil pipe entry with the fuel feeding mouth of oil tank is connected, hydraulic pulse generating device directly with be connected by the test piece, mend oily device's benefit oil pipe export with be connected by the test piece. The utility model has the advantages that: the high-pressure pulse performance and stability are further improved, the test result is more accurate, the safety of the rubber hose is improved, the system structure is simplified, and the method has important significance for the technical development of the domestic pressure pulse test bed.
Description
Technical field
This utility model belongs to rubber detection technique field, particularly relates to a kind of pressure pulse test hydraulic system for rubber hose detection。
Background technology
Along with the fast development of Domestic Automotive Industry, people are further strict to the especially trouble-saving generation of requirement of the safety of automobile, and as one of automobile active safety parts, the quality of the automobile hydraulic braking hose of transmission brake power seems all the more important。Air-brake coupling hose is to be mainly used in the transmission of medium in brakes and store the flexible delivery catheter of the hydraulic pressure afterburning for automotive brake or air pressure, so the quality of its quality can directly influence the safety and reliability that vehicle travels。
Hydraulic system is when work, serious hydraulic shock is produced due to the switch of hydraulic valve, the start-stop of hydraulic pump, the change of load, its intensity often several times are higher than system working pressure, light then affect component life, heavy then cause pipeline fracture, component failure etc., so must take into this problem when pipeline and hydraulic component design。The hydraulic cylinder high pressure pulse test bench of domestic existence now mostly is employing pressurized cylinder scheme, although this system can reach requirement on pressure, but its pulse period is restricted, and rate of pressure rise also can be slack-off because of the impact of pressurized cylinder。And, the difficulty that accurately controls for curve strengthens, and impulse waveform can be influenced by impact。
Utility model content
In order to overcome above-mentioned the deficiencies in the prior art, when this utility model is for pulse, hydraulic pressure is excessive impacts to hydraulic cylinder that power is excessive and curve is unstable during rubber hose detection problem, a kind of pressure pulse test hydraulic system for rubber hose detection is provided, substantially reduce the impulsive force to hydraulic cylinder, extend the service life of hydraulic system, testing result is more accurate simultaneously, it is ensured that safety during rubber hose application。
A kind of pressure pulse test hydraulic system for rubber hose detection, it is characterized in that including fuel tank, hydraulic impulse generating means, recharging oil device, the oil-feed port of described fuel tank, oil return opening are connected with the oil-feed port of described hydraulic impulse generating means, oil return opening respectively, the repairing tube inlet of described recharging oil device is connected with the oil-feed port of described fuel tank, described hydraulic impulse generating means is directly connected with test specimen, and the repairing pipe outlet of described recharging oil device is connected with described test specimen。
Voltage stabilizing accumulator that described hydraulic impulse generating means includes being successively set on described fuel tank oil feed line, electrohydraulic servo valve, electro-hydraulic reversing valve, pressure transducer, Pressure gauge, the oil-in of described voltage stabilizing accumulator, oil return opening are connected with the oil-feed port of described fuel tank, oil return opening respectively, and described electrohydraulic servo valve, described electro-hydraulic reversing valve are connected with the return line of described fuel tank respectively。
Also including supercharger, described supercharger is positioned in the bypass of described fuel tank oil feed line, and between described electro-hydraulic reversing valve and described test specimen。
The repairing pipe outlet of described recharging oil device is connected with the pipeline between described Pressure gauge, described test specimen。
Described recharging oil device includes gear pump and fluid infusion accumulator, and described gear pump is connected with described fuel tank and described fluid infusion accumulator respectively, and described fluid infusion accumulator is provided with overflow valve, and described gear pump is driven by motor。
On oil feed line between described fuel tank and described voltage stabilizing accumulator, the export pipeline of described recharging oil device is respectively equipped with check valve。
Described oil feed line is additionally provided with the bypass valve in parallel with described electrohydraulic servo valve。
The beneficial effects of the utility model are: adopt electrohydraulic servo valve, oil pressure is directly controlled, it is ensured that the accuracy of trial curve, make pressure pulse control part can carry out extending the service life of pressure pulse control part at lower pressures；Simultaneously supercharger is as standby, start when pressure is bigger supercharger with the use of, supercharger simply starts when pressure is big not, does not start under normal circumstances, this reduces the impact to hydraulic cylinder, substantially prolongs the service life of equipment。The setting of check valve is possible to prevent pressure by anti-pass to fuel tank；Being provided with recharging oil device, when pressure that pressure transducer records is relatively low, motor can start, driven gear pump is pumped from fuel tank, system is carried out repairing operation, makes fuel tank fuel feeding more stable by arranging voltage stabilizing accumulator between fuel tank and electrohydraulic servo valve, it is ensured that being smoothed out of test。This utility model further improves high-voltage pulse performance and stability, and test result is more accurate so that the safety of rubber hose improves, and simplifies system structure simultaneously, and the technical development for domestic pressure pulse test bench has great importance。
Accompanying drawing explanation
Fig. 1 is system block diagram of the present utility model；
Fig. 2 is structural representation of the present utility model。
In figure, 1, fuel tank, 2, hydraulic impulse generating means, 3, recharging oil device, 4, test specimen, 5, voltage stabilizing accumulator, 6, electrohydraulic servo valve, 7, electro-hydraulic reversing valve, 8, pressure transducer, 9, Pressure gauge, 10, supercharger, 11, check valve, 12, bypass valve。
Detailed description of the invention
Below in conjunction with accompanying drawing, a kind of detailed description of the invention of utility model is explained。
As shown in Figure 1 and Figure 2, this utility model provides a kind of pressure pulse test hydraulic system for rubber hose detection, it is characterized in that including fuel tank 1, hydraulic impulse generating means 2, recharging oil device 3, test specimen 4, described hydraulic impulse generating means 2, described recharging oil device 3 are arranged in mounting seat, and described test specimen 4 is rack-mount。The oil-feed port of described fuel tank 1, oil return opening are connected with the oil-feed port of described hydraulic impulse generating means 2, oil return opening respectively, the repairing tube inlet of described recharging oil device 3 is connected with the oil-feed port of described fuel tank 1, and described hydraulic impulse generating means 2 is directly connected with test specimen 4。
Voltage stabilizing accumulator 5 that described hydraulic impulse generating means 2 includes being successively set on described fuel tank 1 oil feed line, electrohydraulic servo valve 6, electro-hydraulic reversing valve 7, pressure transducer 8, Pressure gauge 9, the oil-in of described voltage stabilizing accumulator 5, oil return opening are connected with the oil-feed port of described fuel tank 1, oil return opening respectively, and described electrohydraulic servo valve 6, described electro-hydraulic reversing valve 7 are connected with the return line of described fuel tank 1 respectively。Voltage stabilizing accumulator 5 is for supplementing instantaneous delivery required during pulse, and in operating pressure stable section and the back-pressure section of pulse curve, hydraulic energy is stored up into voltage stabilizing accumulator 5 by fuel tank 1；In the ascent stage, voltage stabilizing accumulator 5 then discharges the hydraulic energy of storage, to produce the required rate of rise and peak value。
The repairing pipe outlet of described recharging oil device 3 is connected with the pipeline between Pressure gauge 9, described test specimen 4, and fluid is directly communicated to described test specimen 4。Voltage stabilizing accumulator 5 makes fuel tank 1 fuel feeding more stable, it is ensured that being smoothed out of test, it is accurate that the curve obtained is stablized。
Described recharging oil device 3 includes gear pump and fluid infusion accumulator, and described gear pump is connected with described fuel tank 1 and described fluid infusion accumulator respectively, and described fluid infusion accumulator is provided with overflow valve, and described gear pump is driven by motor。When pressure is lower than setting pressure lower limit, automatically start motor, driven gear pump。When fluid infusion energy storage pressure exceedes upper limit timing, stop motor。Mainly by fluid infusion accumulator repairing in work, upper pressure limit is limited by overflow valve。
Can also arranging supercharger 10 alternately, described supercharger 10 is positioned in the bypass of described fuel tank 1 oil feed line, and the supply between described electro-hydraulic reversing valve 7 and described test specimen 4, during for pulsating pressure deficiency。
On oil feed line between described fuel tank 1 and described voltage stabilizing accumulator 5, the export pipeline of described recharging oil device 3 is respectively equipped with check valve 11, to prevent pressure by anti-pass to fuel tank 1。
Described oil feed line is additionally provided with the bypass valve 12 in parallel with described electrohydraulic servo valve 6。
This utility model makes the safety of rubber hose improve, and accident rate reduces, and the technical development for domestic pressure pulse test bench has great importance。
Above example of the present utility model is described in detail, but described content has been only preferred embodiment of the present utility model, it is impossible to be considered for limiting practical range of the present utility model。All equalizations made according to this utility model application range change and improvement etc., all should still belong within patent covering scope of the present utility model。
Claims (7)
1. the pressure pulse test hydraulic system for rubber hose detection, it is characterized in that including fuel tank, hydraulic impulse generating means, recharging oil device, the oil-feed port of described fuel tank, oil return opening are connected with the oil-feed port of described hydraulic impulse generating means, oil return opening respectively, the repairing tube inlet of described recharging oil device is connected with the oil-feed port of described fuel tank, described hydraulic impulse generating means is directly connected with test specimen, and the repairing pipe outlet of described recharging oil device is connected with described test specimen。
2. pressure pulse test hydraulic system according to claim 1, it is characterized in that voltage stabilizing accumulator that described hydraulic impulse generating means includes being successively set on described fuel tank oil feed line, electrohydraulic servo valve, electro-hydraulic reversing valve, pressure transducer, Pressure gauge, the oil-in of described voltage stabilizing accumulator, oil return opening are connected with the oil-feed port of described fuel tank, oil return opening respectively, and described electrohydraulic servo valve, described electro-hydraulic reversing valve are connected with the return line of described fuel tank respectively。
3. pressure pulse test hydraulic system according to claim 2, it is characterised in that also include supercharger, described supercharger is positioned in the bypass of described fuel tank oil feed line, and between described electro-hydraulic reversing valve and described test specimen。
4. the pressure pulse test hydraulic system according to Claims 2 or 3, it is characterised in that the repairing pipe outlet of described recharging oil device is connected with the pipeline between described Pressure gauge, described test specimen。
5. pressure pulse test hydraulic system according to claim 4, it is characterized in that described recharging oil device includes gear pump and fluid infusion accumulator, described gear pump is connected with described fuel tank and described fluid infusion accumulator respectively, and described fluid infusion accumulator is provided with overflow valve, and described gear pump is driven by motor。
6. pressure pulse test hydraulic system according to claim 5, it is characterised in that on the oil feed line between described fuel tank and described voltage stabilizing accumulator, be respectively equipped with check valve on the export pipeline of described recharging oil device。
7. pressure pulse test hydraulic system according to claim 2, it is characterised in that the oil feed line of described fuel tank is provided with the bypass valve in parallel with described electrohydraulic servo valve。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521105564.8U CN205333442U (en) | 2015-12-24 | 2015-12-24 | Pressure pulse test hydraulic system for rubber hose detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521105564.8U CN205333442U (en) | 2015-12-24 | 2015-12-24 | Pressure pulse test hydraulic system for rubber hose detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205333442U true CN205333442U (en) | 2016-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521105564.8U Expired - Fee Related CN205333442U (en) | 2015-12-24 | 2015-12-24 | Pressure pulse test hydraulic system for rubber hose detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205333442U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105938073A (en) * | 2015-12-24 | 2016-09-14 | 石油和化学工业橡胶及再生产品质量监督检验中心（天津市质量监督检验站第四十二站） | Pressure pulse test hydraulic system for rubber hose detection |
-
2015
- 2015-12-24 CN CN201521105564.8U patent/CN205333442U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105938073A (en) * | 2015-12-24 | 2016-09-14 | 石油和化学工业橡胶及再生产品质量监督检验中心（天津市质量监督检验站第四十二站） | Pressure pulse test hydraulic system for rubber hose detection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200116 Address after: 300000 No. 15, Haitai North South Street, Huayuan Industrial Zone (outside the ring), Binhai high tech Zone, Binhai New Area, Tianjin Patentee after: TIANJIN ZHENHAI RUBBER TECHNOLOGY DEVELOPMENT CO., LTD. Address before: 300384 Tianjin Binhai New Area of Tianjin Binhai New Area Huayuan Industrial Zone (outer ring) Haitai No. 15 North Street Patentee before: Quality Supervision and Inspection Center for Rubber and Recycled Products in Petroleum and Chemical Industries (Forty-second Station of Tianjin Quality Supervision and Inspection Station) |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200831 Address after: 4 / F, office building, 15 Haitai North South Street, Huayuan Industrial Zone, Binhai high tech Zone, Binhai New Area, Tianjin Patentee after: Tianjin 42 Station Testing Technology Co., Ltd Address before: 300000 No. 15, Haitai North South Street, Huayuan Industrial Zone (outside the ring), Binhai high tech Zone, Binhai New Area, Tianjin Patentee before: TIANJIN RUBBER INDUSTRY INSTITUTE Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160622 Termination date: 20201224 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |