CN202789854U - Portable testing device for inner leakage detection of hydraulic oil cylinder - Google Patents
Portable testing device for inner leakage detection of hydraulic oil cylinder Download PDFInfo
- Publication number
- CN202789854U CN202789854U CN 201220459716 CN201220459716U CN202789854U CN 202789854 U CN202789854 U CN 202789854U CN 201220459716 CN201220459716 CN 201220459716 CN 201220459716 U CN201220459716 U CN 201220459716U CN 202789854 U CN202789854 U CN 202789854U
- Authority
- CN
- China
- Prior art keywords
- stop valve
- oil
- way pipe
- testing device
- port
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The utility model relates to a portable testing device for inner leakage detection of a hydraulic oil cylinder. The testing device comprises an oil inlet stop valve, an oil return stop valve and a four-way pipe, wherein each of the oil inlet stop valve and the oil return stop valve is a two-position two-way valve; a first port of the four-way pipe is communicated with an outlet of the oil inlet stop valve, a second port of the four-way pipe is communicated with an inlet of the oil return stop valve, a third port of the four-way pipe is the outlet of the testing device, and a pressure gauge is arranged at a fourth port of the four-way pipe; and the inlet of the oil inlet stop valve is communicated with the inlet of the testing device, and the outlet of the oil return stop valve is an oil return port of the testing device. The portable testing device used as a movable detection device can flexibly perform inner leakage testing on the oil cylinder on a test bench or an entire car without restriction by test field conditions, and can test the inner leakage of the hydraulic oil cylinder on the entire car. An interface of the testing device disclosed by the utility model is mounted by adopting a quick-change connector, thus the operation is fast and efficient, and the labor intensity of operation staff is reduced.
Description
Technical field
The utility model belongs to hydraulic jack detection technique field, is specifically related to the testing apparatus for undetected survey in the hydraulic jack.
Background technique
The size of hydraulic jack internal leakage has directly determined the performance of hydraulic jack, and therefore, the internal leakage that effectively detects hydraulic jack just seems particularly important.At present, hydraulic jack internal leakage test is generally all carried out at the test bench of hydraulic oil cylinder of specialty, method is: make the chamber oil-feed of tested hydraulic cylinder works, be forced into rated pressure or user's specified pressure P, behind stipulated time t, mensuration leaks to the not leakage rate Q of pressurizing chamber through piston, and the ratio of Q and t is the internal leakage of oil cylinder, and unit is ml/min.As previously mentioned, internal leakage performance at professional oil cylinder test bed measurement oil cylinder must be installed in hydraulic jack on the test stand, connects hydraulic pipe line, if think testing hydraulic oil cylinder internal leakage performance of (for example on car load) under actual conditions, also do not have at present detection means; Secondly, because the internal leakage of hydraulic jack is generally less, the leakage rate Q of test in the situation of pressurization on the test stand, often error is larger, is difficult to the internal leakage performance of hydraulic jack is judged accurately.
Summary of the invention
In order to solve the detection of the internal leakage of hydraulic jack under the actual applying working condition, the utility model provides a kind of portable test arrangement for undetected survey in the hydraulic jack.
The portable test arrangement that is used for undetected survey in the hydraulic jack comprises oil-feed stop valve, oil return stop valve and four-way pipe, and described oil-feed stop valve and oil return stop valve are the 2/2-way valve; The first port of described four-way pipe is being communicated with the outlet of oil-feed stop valve, and the second port of four-way pipe is being communicated with the import of oil cut-off valve, and the 3rd port of four-way pipe is the outlet of described testing apparatus, and the 4th port of four-way pipe is provided with pressure gauge; The import of oil-feed stop valve is the import of described testing apparatus, and the outlet that goes out oil cut-off valve is the return opening of described testing apparatus.
The power oil sources of this detection device utilization is the system's oil sources on correlation test platform or the car load, and its test philosophy figure compared with prior art, the utlity model has following advantage as shown in Figure 2:
1. the utility model can be carried out oil cylinder internal leakage test at test stand or car load flexibly as a detection facility movably, and the restriction of the field condition that is not put to the test has realized the internal leakage of testing hydraulic oil cylinder on car load;
2. the quick release coupling mode is taked in the installation of the utility model interface, and quickness and high efficiency has reduced operator's labor intensity;
3. detection mode is taked the form of interval set time t (being generally 1min) recording manometer pressure drop, and so as to judging the size of oil cylinder internal leakage, data are directly perceived, has improved the work efficiency of test.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is that the utility model uses phase diagram.
Sequence number among the upper figure: oil-feed stop valve 1, oil return stop valve 2, pressure gauge 3, four-way pipe 4, power oil sources 5, tested oil cylinder 6.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described by embodiment.
Referring to Fig. 1, the portable test arrangement that is used for undetected survey in the hydraulic jack comprises oil-feed stop valve 1, oil return stop valve 2 and four-way pipe 4.Oil-feed stop valve 1 and oil return stop valve 2 are the 2/2-way valve.The first port of four-way pipe is being communicated with the outlet A1 of oil-feed stop valve 1, and the second port of four-way pipe is being communicated with the import P2 of oil return stop valve 2, and the 3rd port of four-way pipe is the outlet A of testing apparatus, and the 4th port of four-way pipe is equipped with pressure gauge 3; The import P1 of oil-feed stop valve 1 is being communicated with the import P of testing apparatus, and the outlet A2 of oil return stop valve is the return opening R of testing apparatus.
During work, the import P of testing apparatus and return opening R are being communicated with respectively the power oil sources 5 of tested car load by quick release coupling, hydraulic oil enters from import P, the oil outlet that enters the tested oil cylinder 6 of tested oil cylinder 6(through the outlet A of the outlet A1 → four-way pipe of the import P1 of oil-feed stop valve 1 → oil-feed stop valve 1 → testing apparatus more directly takes back fuel tank), reach in pressure gauge 3 indicated pressures in the situation of rating value or user's specified pressure value, close rapidly oil-feed stop valve 1, this moment, the oil suction chamber of hydraulic jack was in packing state.Interval set time t, the record pressure changing according to pressure drop and the relation of corresponding time, can be judged leak degree in the hydraulic jack.After the off-test, open oil return stop valve 2, the outlet A2 of the import P2 of outlet A → four-way pipe that the hydraulic oil in the hydraulic jack installs after tested → oil return stop valve 2 → oil return stop valve flows back to the power oil sources.Wherein, blanking time, t got 1min usually, was perhaps specified by the client.
Claims (2)
1. be used for the portable test arrangement of undetected survey in the hydraulic jack, it is characterized in that: described testing apparatus comprises oil-feed stop valve, oil return stop valve and four-way pipe, and described oil-feed stop valve and oil return stop valve are the 2/2-way valve; The first port of described four-way pipe is being communicated with the outlet of oil-feed stop valve, and the second port of four-way pipe is being communicated with the import of oil return stop valve, and the 3rd port of four-way pipe is the outlet of described testing apparatus, and the 4th port of four-way pipe is provided with pressure gauge; The import of oil-feed stop valve is being communicated with the import of described testing apparatus, and the outlet of oil return stop valve is the return opening of described testing apparatus.
2. the portable test arrangement for undetected survey in the hydraulic jack according to claim 1 is characterized in that: be respectively equipped with quick release coupling in the import of described testing apparatus and in the outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220459716 CN202789854U (en) | 2012-09-11 | 2012-09-11 | Portable testing device for inner leakage detection of hydraulic oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220459716 CN202789854U (en) | 2012-09-11 | 2012-09-11 | Portable testing device for inner leakage detection of hydraulic oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202789854U true CN202789854U (en) | 2013-03-13 |
Family
ID=47817120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220459716 Expired - Fee Related CN202789854U (en) | 2012-09-11 | 2012-09-11 | Portable testing device for inner leakage detection of hydraulic oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202789854U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148056A (en) * | 2013-03-21 | 2013-06-12 | 南京工业大学 | Hydraulic device leakage measuring device |
| CN103671360A (en) * | 2013-11-21 | 2014-03-26 | 南通高盛机械制造有限公司 | Oil cylinder auxiliary detection device |
| CN105332971A (en) * | 2015-11-26 | 2016-02-17 | 中国航空工业集团公司沈阳飞机设计研究所 | Lubricating oil pressure oiling hydraulic test stand |
| CN108386417A (en) * | 2018-02-08 | 2018-08-10 | 宁波德昂纳机械有限公司 | A kind of multistation testing stand and its detection method |
| CN109356910A (en) * | 2018-09-13 | 2019-02-19 | 上海宝钢工业技术服务有限公司 | The test macro and method of position internal leakage in hydraulic cylinder |
| CN114483711A (en) * | 2022-02-04 | 2022-05-13 | 浙江大学 | Constant parameter method for detecting and evaluating leakage in hydraulic cylinder and detection device thereof |
-
2012
- 2012-09-11 CN CN 201220459716 patent/CN202789854U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148056A (en) * | 2013-03-21 | 2013-06-12 | 南京工业大学 | Hydraulic device leakage measuring device |
| CN103148056B (en) * | 2013-03-21 | 2015-03-25 | 南京工业大学 | Hydraulic device leakage measuring device |
| CN103671360A (en) * | 2013-11-21 | 2014-03-26 | 南通高盛机械制造有限公司 | Oil cylinder auxiliary detection device |
| CN105332971A (en) * | 2015-11-26 | 2016-02-17 | 中国航空工业集团公司沈阳飞机设计研究所 | Lubricating oil pressure oiling hydraulic test stand |
| CN108386417A (en) * | 2018-02-08 | 2018-08-10 | 宁波德昂纳机械有限公司 | A kind of multistation testing stand and its detection method |
| CN108386417B (en) * | 2018-02-08 | 2023-12-29 | 宁波德昂纳机械有限公司 | Multi-station test bed and detection method thereof |
| CN109356910A (en) * | 2018-09-13 | 2019-02-19 | 上海宝钢工业技术服务有限公司 | The test macro and method of position internal leakage in hydraulic cylinder |
| CN114483711A (en) * | 2022-02-04 | 2022-05-13 | 浙江大学 | Constant parameter method for detecting and evaluating leakage in hydraulic cylinder and detection device thereof |
| CN114483711B (en) * | 2022-02-04 | 2022-11-29 | 浙江大学 | Constant parameter method for detecting and evaluating leakage in hydraulic cylinder and detection device thereof |
| US12092135B2 (en) | 2022-02-04 | 2024-09-17 | Zhejiang University | Constant value method for detecting and evaluating internal leakage of hydraulic cylinder and detection device thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202789854U (en) | Portable testing device for inner leakage detection of hydraulic oil cylinder | |
| CN202814687U (en) | High temperature pulse integrated test system of motor vehicle bake hose | |
| CN101476967B (en) | Pressure test method for power station valve | |
| CN102323158A (en) | High pressure safety valve detection system | |
| CN203216669U (en) | Pressure checking apparatus | |
| CN113790852B (en) | Detection method of detection device for detecting performance of pressure reducing valve | |
| CN202330173U (en) | Valve pressure inspection device | |
| CN103398830B (en) | A kind of grease chamber's sealing leak hunting method of load ratio bridging switch | |
| CN103511833A (en) | Portable self-cooling high-pressure hydrogen pressurizing device and method | |
| CN209311021U (en) | A kind of novel hydraulic pressure fuel pump flow detector | |
| CN203584965U (en) | Static-state test board system for servo valve\brake valve | |
| CN205424078U (en) | Quick detecting system of axial deformation of butterfly valve valve plate | |
| CN109443663B (en) | Gate valve online pressing system | |
| CN202994495U (en) | Hydraulic test bench | |
| CN203809417U (en) | Multifunctional hydraulic test device | |
| CN203488988U (en) | Portable self-cooling high-pressure hydrogen pressurization device | |
| CN202676394U (en) | Blind flange tightness testing device | |
| CN205388531U (en) | Large -scale aqueous vapor solenoid valve detecting system that synthesizes | |
| CN105277321A (en) | Comprehensive testboard for hydraulic quick joint | |
| CN102519688A (en) | Production inspection table and inspection method for air passage control system assembly of clutch thruster | |
| CN202149102U (en) | Novel test bed device of hydraulic valve | |
| CN104776962A (en) | Valve detecting fixture and valve detecting system with same | |
| CN101979986A (en) | System for testing parts of air compression system of special vehicle | |
| CN203629775U (en) | Valve pressure resistance property tester | |
| CN203532866U (en) | High-low pressure test valve of blowout preventer |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20210911 |