CN108240371A - A kind of oil cylinder Oil Leakage Detecting method and detection device - Google Patents
A kind of oil cylinder Oil Leakage Detecting method and detection device Download PDFInfo
- Publication number
- CN108240371A CN108240371A CN201711476015.5A CN201711476015A CN108240371A CN 108240371 A CN108240371 A CN 108240371A CN 201711476015 A CN201711476015 A CN 201711476015A CN 108240371 A CN108240371 A CN 108240371A
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- oil
- pressure
- oil cylinder
- detection
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
- F15B19/005—Fault detection or monitoring
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Examining Or Testing Airtightness (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of oil cylinder Oil Leakage Detecting method and detection devices, this method is by observing whether cylinder movement state and surface have oil stain, and pass through pressure detecting, by three kinds of detections, effectively can accurately detect oil cylinder whether oil leak, and mating be provided with detection device, the structure of the detecting device is simple, easy to operate, manufacture is at low cost, improves detection efficiency and accuracy.
Description
Technical field
The present invention relates to machinery field, more particularly to a kind of oil cylinder Oil Leakage Detecting method and detection device.
Background technology
Oil cylinder is that hydraulic energy is changed into mechanical energy, the hydraulic actuator for doing straight reciprocating motion.With structure letter
The characteristics of list, reliable operation.Deceleration device when realizing reciprocating motion, can be removed from, and without drive gap, movement with oil cylinder
Steadily, being used widely therefore in the hydraulic system of various machineries.Oil cylinder power output and piston effective area and its two
The pressure difference on side is directly proportional；Oil cylinder is substantially made of cylinder barrel and cylinder cap, piston, piston rod and sealing device.
Oil cylinder is after long-term use, it may appear that oil leak, oil cylinder oil leak can cause core pulling attonity or signal not in place, can shadow
The processing of equipment is rung, oil cylinder is replaced and requires a great deal of time, influences to produce the duration.
Invention content
For above defect of the existing technology, it is a primary object of the present invention to overcome the deficiencies in the prior art it
Place, discloses a kind of oil cylinder Oil Leakage Detecting method, comprises the steps of：
The oil inlet and outlet for detecting oil cylinder is connected oil pipe by step 1), is ceaselessly carried out fuel feeding and oil return to detection oil cylinder, is seen
The working condition of piston rod is examined, to determine whether there are oil leakage phenomenons；
For step 2) when detecting cylinder movement, whether observation oil cylinder seam crossing has oil leak；
Step 3) carries out pressurization detection to detection oil cylinder, which continues 15-30s, observes oil pressure situation of change, works as oil pressure
It is constant, illustrate inside without oil leakage phenomenon；Work as pressure reduction, illustrate that inside has at oil leak.
Further, step 2) applies oil-Absorbing Sheets in oil cylinder seam crossing.
Further, step 3) pressure duration is 25s.
Further, pressurization detection is carried out respectively to two oil inlet and outlets for detecting oil cylinder in step 3).
Further, the oil pressure in step 3) is observed by oil pressure gauge.
A kind of detection device, including high-pressure installation, fuel tank, reversal valve and connecting line, the high-pressure installation and the oil
Case connects, and the reversal valve oil inlet and oil return opening are connect respectively with the high-pressure installation with the fuel tank, the connecting line
Two groups are provided with, is connect respectively with two interfaces of the reversal valve；
The connecting line include oil pipe, oil pressure detection devices and valve, the oil pipe, oil pressure detection devices and valve according to
Secondary connection, the valve are connect with the reversal valve.
Further, pressure-regulating valve is further included, the pressure-regulating valve adjusts the oil pressure of the high-pressure installation output.
Further, the high-pressure installation is oil pump.
Further, the reversal valve is solenoid directional control valve.
Further, the oil pressure detection devices are oil pressure gauge.
The advantageous effect that the present invention obtains：
The configuration of the present invention is simple, it is easy to detect, effectively can quickly detect oil cylinder whether oil leak, saved a large amount of people
Power by periodic detection, ensures the reliability that oil cylinder uses, ensures the normal use of oil cylinder.
Description of the drawings
Fig. 1 is a kind of structure diagram of oil cylinder leakage detection device of the present invention；
Fig. 2 is the structure diagram of connecting line；
Reference numeral is as follows：
1st, high-pressure installation, 2, fuel tank, 3, reversal valve, 4, connecting line, 5, pressure-regulating valve, 41, oil pipe, 42, oil pressure inspection
Survey device, 43, valve.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right with reference to the accompanying drawings and embodiments
The present invention is described in further detail.It should be appreciated that specific embodiment described herein is only to explain the present invention, and do not have to
It is of the invention in limiting.
A kind of oil cylinder Oil Leakage Detecting method of the present invention, comprises the steps of：
The oil inlet and outlet for detecting oil cylinder is connected oil pipe by step 1), ceaselessly carries out fuel feeding and oil return to detection oil cylinder, living
It fills in row constantly to move back and forth, piston rod mobile status is observed, to determine whether there are oil leakage phenomenon, when piston rod movement is slow
Slow or attonity then illustrates there are oil leakage phenomenon, whereas if piston rod is swift in response, and can move in place, then says
It is bright there is no oil leak；
When detecting cylinder movement, piston rod moves back and forth step 2), and whether observation oil cylinder seam crossing has oil leakage phenomenon, such as
Fruit surface has oil stain or there are weepings, then illustrates oil leak；Preferably, oil-Absorbing Sheets can be laid in seam crossing, passed through
It checks the oil stain situation on oil-Absorbing Sheets, when having oil stain, illustrates there are oil leakage phenomenon, conversely, then illustrating do not have without oil stain on oil-Absorbing Sheets
There is oil leak.The setting of oil-Absorbing Sheets can quickly determine leakage point.
Step 3) carries out pressurization detection to detection oil cylinder, it is preferred that pressurizes respectively to two oil inlet and outlets of oil cylinder
Detection.It is pressurizeed by detection device to detection oil pressure, when pressure reaches preset pressure, stops pressurization, make detection oil cylinder
Interior holding pressure, by least 15s, it is preferred that wait for 25s；Oil pressure is measured with the presence or absence of variation, it can be by setting pressure
Table reads in-oil cylinder pressure value.When pressure value is constant, then illustrate no oil leak, when pressure value reduces, then illustrate there is leakage
Oily phenomenon.
Pressurization detection is further described below：By pressurizeing to one oil inlet and outlet oiling of oil cylinder, piston rod is moved to
At maximum position position, when being forced into specified pressure, stop pressurization, make to keep the pressure in oil cylinder, after standing 15-30s, read
Pressure force value, if there is oil leak, then pressure decline.After having detected, to another oil inlet and outlet oiling, piston rod is replied initial
Likewise, pressurizeing, pressure is kept after reaching specified pressure for position, after standing 15-30s, is read pressure value and is judged.
According to a kind of detection device of above-mentioned oil cylinder Oil Leakage Detecting method, as shown in Figs. 1-2, including high-pressure installation 1, oil
Case 2, reversal valve 3 and connecting line 4, high-pressure installation 1 are connect with fuel tank 2, the oil inlet and oil return opening of reversal valve 3 respectively with height
Pressure device 1 is connect with fuel tank 2, and connecting line 4 is provided with two groups, is connect respectively with two interfaces of reversal valve 3；High-pressure installation 1
Including oil pump and motor, motor driving oil pump squeezes the hydraulic oil in fuel tank 2, logical from connecting line 4 by reversal valve 3
Enter to detect in oil cylinder.Reversal valve 3 can be solenoid directional control valve, and the fuel feeding of two groups of connecting lines 4, Jin Ergai are controlled by reversal valve
Become the operation of oil cylinder.
Connecting line 4 includes oil pipe 41, oil pressure detection devices 42 and valve 43, oil pipe 41, oil pressure detection devices 42 and valve
Door 43 is sequentially connected, and valve 43 is connect with reversal valve 3.Hydraulic oil by oil pipe 41 after valve by entering detection oil cylinder, oil pressure inspection
It can be pressure gauge to survey device 42, can intuitively observe oil pressure situation of change.
In the present embodiment, pressure-regulating valve 5 is further included, pressure-regulating valve 5 is used to adjust the oil of the output of high-pressure installation 2
Pressure, it is preferred that pressure-regulating valve 5 is arranged between reversal valve 3 and high-pressure installation 2.
It should be noted that reversal valve is the prior art, those skilled in the art can be appreciated and understood that, herein not
It repeats again.
The detection device of the present invention is further explained with reference to above-mentioned detection method：
Two groups of connecting lines 4 are connect respectively with detecting two oil inlet and outlets of oil cylinder, start high-pressure installation 1, will be in fuel tank 2
Have pressurization be sent into reversal valve 3 after from connecting line 4 enter detection oil cylinder, pass through pressure-regulating valve 5 change output pressure.Pass through
Whether the effect of reversal valve 3, driving detection oil cylinder reciprocating movement, observation piston rod move in place.
And oil cylinder seam crossing lay oil-Absorbing Sheets, oil cylinder after repeatedly moving back and forth, observe oil-Absorbing Sheets on by
This, it may be determined that whether there is oil leak situation, if there is oil leak, can quickly confirm leakage point.
When above-mentioned detection is without oil leakage phenomenon, control reversal valve 3 makes it no longer change oil circuit, i.e., only to the one of oil cylinder
A oil inlet and outlet oil inlet makes piston rod be at maximum position, pressurizes to it, after adding to specified pressure, closes two groups of companies
The valve 43 on road 4 is taken over, reads the pressure value of pressure-detecting device 42, after standing 15-30s, pressure value is read again, before comparison
Pressure value afterwards, when pressure value reduces, then explanation has an oil leakage phenomenon, not no when changing, and there is no oil leakage phenomenons.Then secondary control changes again
Change direction to valve 3, oil cylinder is made to be in initial position, Oil Leakage Detecting is carried out to it using identical method.It should be noted that
It is the numerical value of the pressure-detecting device 42 on the connecting line 4 to cylinder fuel feeding under current state to read pressure value.
The advantageous effect that the present invention obtains：
The configuration of the present invention is simple, it is easy to detect, effectively can quickly detect oil cylinder whether oil leak, saved a large amount of people
Power by periodic detection, ensures the reliability that oil cylinder uses, ensures the normal use of oil cylinder.
The foregoing is merely a prefered embodiment of the invention, is not used for limiting the practical range of the present invention；If this is not departed from
The spirit and scope of invention, modify or equivalently replace the present invention, and should all cover the protection in the claims in the present invention
In range.
Claims (10)
1. a kind of oil cylinder Oil Leakage Detecting method, comprises the steps of：
The oil inlet and outlet for detecting oil cylinder is connected oil pipe by step 1), ceaselessly carries out fuel feeding and oil return to detection oil cylinder, and observation is lived
The working condition of stopper rod, to determine whether there are oil leakage phenomenons；
For step 2) when detecting cylinder movement, whether observation oil cylinder seam crossing has oil leak；
Step 3) carries out pressurization detection to detection oil cylinder, which continues 15-30s, observation oil pressure situation of change, when oil pressure not
Become, illustrate inside without oil leakage phenomenon；Work as pressure reduction, illustrate that inside has at oil leak.
2. a kind of oil cylinder Oil Leakage Detecting method according to claim 1, which is characterized in that step 2) is applied in oil cylinder seam crossing
Oil-Absorbing Sheets.
3. a kind of oil cylinder Oil Leakage Detecting method according to claim 1, which is characterized in that step 3) pressure duration is
25s。
4. a kind of oil cylinder Oil Leakage Detecting method according to claim 1, which is characterized in that detection oil cylinder in step 3)
Two oil inlet and outlets carry out pressurization detection respectively.
5. a kind of oil cylinder Oil Leakage Detecting method according to claim 1, which is characterized in that the oil pressure in step 3) passes through oil
Press apparent examine.
6. a kind of detection device of any oil cylinder Oil Leakage Detecting methods of claim 1-5, which is characterized in that be pressed including height
It puts, fuel tank, reversal valve and connecting line, the high-pressure installation are connect with the fuel tank, the reversal valve oil inlet and oil return opening
It is connect respectively with the high-pressure installation with the fuel tank, the connecting line is provided with two groups, respectively with the two of the reversal valve
A interface connection；
The connecting line includes oil pipe, oil pressure detection devices and valve, and the oil pipe, oil pressure detection devices and valve connect successively
It connects, the valve is connect with the reversal valve.
7. a kind of detection device according to claim 6, which is characterized in that further include pressure-regulating valve, the pressure tune
Save the oil pressure that valve adjusts the high-pressure installation output.
8. a kind of detection device according to claim 6, which is characterized in that the high-pressure installation is oil pump.
9. a kind of detection device according to claim 6, which is characterized in that the reversal valve is solenoid directional control valve.
10. a kind of detection device according to claim 6, which is characterized in that the oil pressure detection devices are oil pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711476015.5A CN108240371B (en) | 2017-12-29 | 2017-12-29 | Oil cylinder oil leakage detection method and detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711476015.5A CN108240371B (en) | 2017-12-29 | 2017-12-29 | Oil cylinder oil leakage detection method and detection device |
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| Publication Number | Publication Date |
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| CN108240371A true CN108240371A (en) | 2018-07-03 |
| CN108240371B CN108240371B (en) | 2023-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711476015.5A Active CN108240371B (en) | 2017-12-29 | 2017-12-29 | Oil cylinder oil leakage detection method and detection device |
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| Country | Link |
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| CN (1) | CN108240371B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404365A (en) * | 2018-12-14 | 2019-03-01 | 龙工(福建)液压有限公司 | A kind of method of gas-liquid mixed detection hydraulic cylinder |
| CN110332274A (en) * | 2019-07-28 | 2019-10-15 | 天津市双象工程液压件有限责任公司 | A kind of hydraulic cylinder with permeability alarm function |
| CN110360181A (en) * | 2019-07-28 | 2019-10-22 | 天津市双象工程液压件有限责任公司 | A kind of cylinder cap and the hydraulic cylinder for being equipped with this cylinder cap |
| CN110555979A (en) * | 2019-07-28 | 2019-12-10 | 天津市双象工程液压件有限责任公司 | Sealed oil leakage warning structure |
| CN111498712A (en) * | 2020-04-26 | 2020-08-07 | 南宁学院 | Oil cylinder detection and lifting device |
| CN113323938A (en) * | 2021-05-24 | 2021-08-31 | 左辉 | Hydraulic cylinder with device for automatically detecting and treating leakage |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102108987A (en) * | 2011-03-30 | 2011-06-29 | 苏州东南碳制品有限公司 | Oil cylinder |
| CN205047582U (en) * | 2015-10-22 | 2016-02-24 | 山东科技大学 | Leak testing system in compound pneumatic cylinder |
-
2017
- 2017-12-29 CN CN201711476015.5A patent/CN108240371B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102108987A (en) * | 2011-03-30 | 2011-06-29 | 苏州东南碳制品有限公司 | Oil cylinder |
| CN205047582U (en) * | 2015-10-22 | 2016-02-24 | 山东科技大学 | Leak testing system in compound pneumatic cylinder |
Non-Patent Citations (1)
| Title |
|---|
| 马明东;: "液压缸性能检测方法及检测结果分析" * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404365A (en) * | 2018-12-14 | 2019-03-01 | 龙工(福建)液压有限公司 | A kind of method of gas-liquid mixed detection hydraulic cylinder |
| CN110332274A (en) * | 2019-07-28 | 2019-10-15 | 天津市双象工程液压件有限责任公司 | A kind of hydraulic cylinder with permeability alarm function |
| CN110360181A (en) * | 2019-07-28 | 2019-10-22 | 天津市双象工程液压件有限责任公司 | A kind of cylinder cap and the hydraulic cylinder for being equipped with this cylinder cap |
| CN110555979A (en) * | 2019-07-28 | 2019-12-10 | 天津市双象工程液压件有限责任公司 | Sealed oil leakage warning structure |
| CN111498712A (en) * | 2020-04-26 | 2020-08-07 | 南宁学院 | Oil cylinder detection and lifting device |
| CN113323938A (en) * | 2021-05-24 | 2021-08-31 | 左辉 | Hydraulic cylinder with device for automatically detecting and treating leakage |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108240371B (en) | 2023-09-05 |
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