CN203412845U - Portable online oil cylinder internal leakage detecting device - Google Patents
Portable online oil cylinder internal leakage detecting device Download PDFInfo
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- CN203412845U CN203412845U CN201320366718.3U CN201320366718U CN203412845U CN 203412845 U CN203412845 U CN 203412845U CN 201320366718 U CN201320366718 U CN 201320366718U CN 203412845 U CN203412845 U CN 203412845U
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- oil cylinder
- valve
- hydraulic cylinder
- cylinder
- internal leakage
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 27
- 238000001514 detection method Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 7
- 239000002828 fuel tank Substances 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 26
- 238000005259 measurement Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000010227 cup method (microbiological evaluation) Methods 0.000 description 1
- 239000010727 cylinder oil Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
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Abstract
The utility model aims at providing an oil cylinder leakage detecting device. The oil cylinder internal leakage rate can be precisely measured by utilizing a magnetic drum flex displacement sensor carried by a hydraulic servo cylinder through the displacement conversion data of the servo cylinder. A portable online oil cylinder internal leakage detecting device provided by the utility model comprises a servo hydraulic cylinder, a displacement sensor, a deflation valve, a throttle valve, a first reversing valve and a second reversing valve, wherein the deflation valve is connected with the hydraulic cylinder to be detected; leaked oil flows to the servo hydraulic cylinder through the deflation valve, the throttle valve and the first reversing valve; the displacement sensor is mounted at the servo hydraulic cylinder; oil flowing into the servo hydraulic cylinder finally flows into an oil tank through the reversing of the second reversing valve. By using the portable online oil cylinder internal leakage detecting device, the oil leakage rate of the oil cylinder can be precisely measured online, and can be further displayed on a screen of an upper computer.
Description
Technical field
The utility model belongs to oil cylinder leak detection technology field, especially relates to a kind of online oil cylinder internal leakage detection device that can be portable.
Background technique
The method that existing oil cylinder detects internal leakage is online: adopt pressurize method, measuring cup method, sedimentation, leakage method etc. several, but it is how many that above-mentioned several method all cannot detect the leakage rate of oil cylinder internal leakage, and whether can also work to oil cylinder, whether the continuation of equipment is used and can be caused device security human injury can not make accurate judgement; Conventionally for equipment can normally move, can only adopt the mode of changing oil cylinder.So not only waste time and energy, and can cause unnecessary waste.
Summary of the invention
In order to address the above problem, the purpose of this utility model is to provide a kind of oil cylinder leak detecting device, utilizes the entrained magnetic drum telescopic displacement sensor of hydraulic servo cylinder, by the displacement amount translation data of servocylinder, can accurately measure oil cylinder internal leakage.
The utility model provides following technological scheme:
A kind of portable online oil cylinder internal leakage detection device, comprise servo hydraulic cylinder, displacement transducer, bleed valve, throttle valve, the first selector valve, the second selector valve, described bleed valve is connected with tested liquid cylinder pressure, the fluid leaking flows into servo hydraulic cylinder after by bleed valve, throttle valve and the first selector valve, on described servo hydraulic cylinder, displacement transducer is installed, flows into the fluid of servo hydraulic cylinder by the final fuel tank that flows into after the second selector valve.
As a kind of improvement project of the present utility model, between described the first selector valve and servo hydraulic cylinder, be connected with hydralic pressure gauge.
As a kind of improvement project of the present utility model, described displacement transducer is connected with PLC by transmitter, and described PLC is also connecting upper-position unit.
As a kind of preferred version of the present utility model, described displacement transducer is magnetic drum telescopic displacement sensor.
Owing to having adopted above-mentioned technological scheme, the utility model compared with prior art, has following advantage and good effect:
Can accurately record online oil cylinder oil liquid leakage amount, and can further on upper-position unit screen, show, be convenient to staff and fast, accurately judge the quality condition of oil cylinder, to carry out, after technical Analysis, take counter-measure effectively.This install each piece volumes small and exquisite, lightweight, be easy to carry.
Accompanying drawing explanation
The portable online oil cylinder internal leakage detection device hydraulic scheme that Fig. 1 provides for the utility model;
Fig. 2 is the oil cylinder leakage plot trend figure showing on upper-position unit.
Reference numerals list:
1-fuel tank, 6-the second selector valve, 7-the first selector valve, 8-throttle valve, 9-servo hydraulic cylinder, 10-hydralic pressure gauge, 11-bleed valve, 12-tested liquid cylinder pressure, 13-displacement transducer.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, should understand following embodiment and only for the utility model is described, be not used in restriction scope of the present utility model.It should be noted that, word 'fornt', 'back', " left side ", " right side ", "up" and "down" that use is described below refer to the direction in accompanying drawing, and word " interior " and " outward " refer to respectively the direction towards or away from specific features geometrical center.
Portable online oil cylinder internal leakage detection device as shown in Figure 1, comprise servo hydraulic cylinder 9, displacement transducer 13, bleed valve 11, throttle valve 8, the first selector valve 7, the second selector valve 6, described bleed valve 11 is connected with the rodless cavity of tested liquid cylinder pressure 12, while having oil liquid leakage in tested liquid cylinder pressure 12, the fluid leaking is by bleed valve 11, in rear inflow servo hydraulic cylinder 9 rodless cavities of throttle valve 8 and the first selector valve 7, thereby rodless cavity internal pressure changes and promotes piston rod movement, on described servo hydraulic cylinder 9, displacement transducer 13 is installed, displacement transducer 13 can be measured the displacement amount of piston rod.Flow into the fluid of servo hydraulic cylinder 9 by the rear final fuel tank 1 that flows into of the second selector valve 6 commutation.The bleed valve 11 arranging between servo hydraulic cylinder 9 and tested liquid cylinder pressure 12, can reach the effect of getting rid of oily inner air tube, and volume is small and exquisite, with low cost.
As a kind of improvement project of the present utility model, between described the first selector valve 6 and servo hydraulic cylinder 9, be connected with hydralic pressure gauge 10.Hydralic pressure gauge 10 can record the oil pressure value that leaks fluid, and is sent to displacement transducer 13.
As a kind of improvement project of the present utility model, described displacement transducer 13 is also connected with PLC by transmitter, and described PLC is also connecting upper-position unit.Like this, the data that displacement transducer records can gather preservation automatically, can also utilize KingView software in PLC system, generate leakage rate time graph on upper-position unit display interface.We can also set maximum leakage curve and minimum leakage curve according to different oil cylinder models, thereby form contrast with the leakage rate of actual measurement, help staff to judge that rapidly oil cylinder leaks situation.As shown in Figure 2, the leakage rate of curve 1 for producing under the normal service condition of certain model oil cylinder; The maximum leakage amount of curve 2 for producing under the normal service condition of oil cylinder; Curve 1 and curve 2 are according to the predefined fixed curve of the different model of oil cylinder, can adjust as required; The leakage rate tendency line that actual measurement line produces while being tested oil cylinder test; The tendency of actual measurement line is as in the scope at curve 1, and the leakage value of oil cylinder is normal value, can normally use; The tendency of actual measurement line is as in the scope at curve 1 and curve 2, and oil cylinder has produced improper leakage rate, can use, and need to place under repair.The tendency of actual measurement line is as the upper range at curve 2, and oil cylinder has produced serious leakage, can not re-use, the repairing of must rolling off the production line.
As a kind of preferred version of the present utility model, described displacement transducer 13 is magnetic drum telescopic displacement sensor.The measuring accuracy of magnetic drum telescopic displacement sensor can reach 5 μ m, and measurement result is accurate.
The disclosed technological means of the utility model scheme is not limited only to the disclosed technological means of above-mentioned mode of execution, also comprises the technological scheme being comprised of above technical characteristics combination in any.
Claims (4)
1. a portable online oil cylinder internal leakage detection device, it is characterized in that: comprise servo hydraulic cylinder, displacement transducer, bleed valve, throttle valve, the first selector valve, the second selector valve, described bleed valve is connected with tested liquid cylinder pressure, the fluid leaking flows into servo hydraulic cylinder after by bleed valve, throttle valve and the first selector valve, on described servo hydraulic cylinder, displacement transducer is installed, flows into the fluid of servo hydraulic cylinder by the rear final fuel tank that flows into of the second selector valve commutation.
2. portable online oil cylinder internal leakage detection device according to claim 1, is characterized in that: between described the first selector valve and servo hydraulic cylinder, be connected with hydralic pressure gauge.
3. portable online oil cylinder internal leakage detection device according to claim 1 and 2, is characterized in that: described displacement transducer is connected with PLC by transmitter, and described PLC is also connecting upper-position unit.
4. portable online oil cylinder internal leakage detection device according to claim 1 and 2, is characterized in that: described displacement transducer is magnetic drum telescopic displacement sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320366718.3U CN203412845U (en) | 2013-06-25 | 2013-06-25 | Portable online oil cylinder internal leakage detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320366718.3U CN203412845U (en) | 2013-06-25 | 2013-06-25 | Portable online oil cylinder internal leakage detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203412845U true CN203412845U (en) | 2014-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320366718.3U Expired - Fee Related CN203412845U (en) | 2013-06-25 | 2013-06-25 | Portable online oil cylinder internal leakage detecting device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203412845U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533882A (en) * | 2014-12-19 | 2015-04-22 | 三一汽车起重机械有限公司 | Diagnosis method and system for leakage fault of oil cylinders |
| CN105298820A (en) * | 2014-06-10 | 2016-02-03 | Dypower株式会社 | Measuring apparatus for oil leaked intrinsically from hydraulic cylinder |
| CN105465101A (en) * | 2014-10-23 | 2016-04-06 | 徐州重型机械有限公司 | Internal leakage detection equipment and device for hydraulic oil cylinder |
| CN105526210A (en) * | 2016-01-13 | 2016-04-27 | 中南大学 | Method and device for measuring micro inner leakage amount of any stroke position of hydraulic cylinder |
| CN105545876A (en) * | 2015-12-01 | 2016-05-04 | 广东精铟海洋工程股份有限公司 | Field detection device for reversing valve |
| CN105697460A (en) * | 2016-04-25 | 2016-06-22 | 中冶赛迪工程技术股份有限公司 | High-precision hydraulic cylinder inner-leakage detection device |
| CN105864148A (en) * | 2016-05-10 | 2016-08-17 | 燕山大学 | Qualified measuring device and method of leakage rate of sealing rings for hydraulic cylinder |
| CN110552933A (en) * | 2019-08-30 | 2019-12-10 | 徐州徐工液压件有限公司 | Device and method for monitoring leakage rate in hydraulic cylinder in real time |
| CN111693288A (en) * | 2019-03-15 | 2020-09-22 | 卡特彼勒公司 | Device for detecting oil leakage |
| CN112855651A (en) * | 2019-11-12 | 2021-05-28 | 上海朝田实业股份有限公司 | High-precision hydraulic cylinder |
| CN114135796A (en) * | 2021-12-22 | 2022-03-04 | 中国人民解放军92228部队 | Fluid leakage amount detector and detection method |
| CN117072519A (en) * | 2023-08-25 | 2023-11-17 | 北汽利戴工业技术服务(北京)有限公司 | A hydraulic cylinder leakage detection device and method |
-
2013
- 2013-06-25 CN CN201320366718.3U patent/CN203412845U/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298820A (en) * | 2014-06-10 | 2016-02-03 | Dypower株式会社 | Measuring apparatus for oil leaked intrinsically from hydraulic cylinder |
| CN105298820B (en) * | 2014-06-10 | 2017-07-14 | Dy Power株式会社 | For measuring the oily equipment from hydraulic cylinder internal leakage |
| CN105465101A (en) * | 2014-10-23 | 2016-04-06 | 徐州重型机械有限公司 | Internal leakage detection equipment and device for hydraulic oil cylinder |
| CN104533882B (en) * | 2014-12-19 | 2017-02-22 | 三一汽车起重机械有限公司 | Diagnosis method and system for leakage fault of oil cylinders |
| CN104533882A (en) * | 2014-12-19 | 2015-04-22 | 三一汽车起重机械有限公司 | Diagnosis method and system for leakage fault of oil cylinders |
| CN105545876A (en) * | 2015-12-01 | 2016-05-04 | 广东精铟海洋工程股份有限公司 | Field detection device for reversing valve |
| CN105526210A (en) * | 2016-01-13 | 2016-04-27 | 中南大学 | Method and device for measuring micro inner leakage amount of any stroke position of hydraulic cylinder |
| CN105526210B (en) * | 2016-01-13 | 2017-09-19 | 中南大学 | A method and device for measuring small internal leakage at any stroke position of a hydraulic cylinder |
| CN105697460A (en) * | 2016-04-25 | 2016-06-22 | 中冶赛迪工程技术股份有限公司 | High-precision hydraulic cylinder inner-leakage detection device |
| CN105864148A (en) * | 2016-05-10 | 2016-08-17 | 燕山大学 | Qualified measuring device and method of leakage rate of sealing rings for hydraulic cylinder |
| CN111693288A (en) * | 2019-03-15 | 2020-09-22 | 卡特彼勒公司 | Device for detecting oil leakage |
| CN110552933A (en) * | 2019-08-30 | 2019-12-10 | 徐州徐工液压件有限公司 | Device and method for monitoring leakage rate in hydraulic cylinder in real time |
| CN112855651A (en) * | 2019-11-12 | 2021-05-28 | 上海朝田实业股份有限公司 | High-precision hydraulic cylinder |
| CN114135796A (en) * | 2021-12-22 | 2022-03-04 | 中国人民解放军92228部队 | Fluid leakage amount detector and detection method |
| CN114135796B (en) * | 2021-12-22 | 2025-12-19 | 中国人民解放军92228部队 | Fluid leakage detector and detection method |
| CN117072519A (en) * | 2023-08-25 | 2023-11-17 | 北汽利戴工业技术服务(北京)有限公司 | A hydraulic cylinder leakage detection device and method |
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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: 20210804 Address after: 3520 Tongji Road, Baoshan District, Shanghai 201900 Patentee after: Baowu equipment Intelligent Technology Co.,Ltd. Address before: 210039 new building, Zhonghua Gate, Yuhuatai District, Jiangsu, Nanjing Patentee before: NANJING MEISHAN METALLURGY DEVELOPMENT Co.,Ltd. Patentee before: Shanghai Meishan Iron & steel Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140129 |
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| CF01 | Termination of patent right due to non-payment of annual fee |