CN103244515A - Excavator hydraulic system with bypass filtering device - Google Patents
Excavator hydraulic system with bypass filtering device Download PDFInfo
- Publication number
- CN103244515A CN103244515A CN2013101731226A CN201310173122A CN103244515A CN 103244515 A CN103244515 A CN 103244515A CN 2013101731226 A CN2013101731226 A CN 2013101731226A CN 201310173122 A CN201310173122 A CN 201310173122A CN 103244515 A CN103244515 A CN 103244515A
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- China
- Prior art keywords
- oil
- hydraulic system
- excavator
- excavator hydraulic
- hydraulic
- 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.)
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Links
- 238000001914 filtration Methods 0.000 title abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000002828 fuel tank Substances 0.000 claims description 5
- 239000003921 oil Substances 0.000 abstract description 25
- 239000010720 hydraulic oil Substances 0.000 abstract description 12
- 230000003749 cleanliness Effects 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 230000008676 import Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
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- Operation Control Of Excavators (AREA)
Abstract
The invention discloses an excavator hydraulic system with a bypass filtering device and belongs to the field of engineering machinery. The excavator hydraulic system solves the problem that moisture in metal powder and oil in the prior art easily causes pollution to hydraulic oil in the hydraulic system. The technical scheme is that the excavator hydraulic system with the bypass filtering device is characterized by comprising a guide pump, an oil tank and the excavator hydraulic system. The bypass filtering device is in parallel connection between the guide pump and the hydraulic oil tank and comprises a throttle valve, an oil filter and an oil-water separator, wherein the throttle valve, the oil filter and the oil-water separator are in series connection with each other. The excavator hydraulic system is mainly applied to an excavator so as to be used for achieving the effect of guaranteeing cleanliness required for the system hydraulic oil for a long time.
Description
Technical field
The present invention relates to a kind of filtrating equipment, specifically, relate in particular to a kind of excavator hydraulic system that has the by-passing filter device.
Background technique
At present, various metallic dusts and the moisture content in the middle of the fluid that the excavator hydraulic element produced between the early stage running-in period after dispatching from the factory are apparent in view to the hydraulic oil pollution in the hydraulic system, and this moment, other pollutants such as particulate matter were more, and system's filter core stops up easily.In the middle of the hydraulic system of tradition excavator, mainly be that oil suction filter and return filter are set between major loop, owing to use user's maintaining work to be difficult to reach requirement.Pollution is apparent in view between running-in period in early days, and filter element life is shorter, and oil cleanliness is not high, can not guarantee to reach the turbidity test of system's hydraulic pressure oil require for a long time, influences the working efficiency of complete machine.
Summary of the invention
The present invention be directed to the problem of above-mentioned digging machine hydraulic system and the deficiency of existence, a kind of excavator hydraulic system that has the by-passing filter device is provided.
The present invention is achieved by the following technical solution: the excavator hydraulic system that has the by-passing filter device, comprise pioneer pump, fuel tank and excavator hydraulic system, be connected in parallel to the by-passing filter device between described pioneer pump and the hydraulic oil container, described by-passing filter device comprises throttle valve, oil purifier and the oil and water seperator that is connected in series.
Preferably be connected with pressure gauge on the oil purifier.
Preferably be connected in parallel to the bypass safety valve between oil purifier, the oil and water seperator.
Compared with prior art, the invention has the beneficial effects as follows:
(1) the present invention filters the oil cleanliness height, can guarantee to reach the turbidity test of system's hydraulic pressure oil require for a long time;
(2) the present invention is simple in structure, and it is all very easy to install and use and change the bypass filter core;
(3) the present invention can not influence the proper functioning of main hydraulic system, can install and use satisfying under original system pressure and the flow rate condition.
Description of drawings
Fig. 1 is structural representation of the present invention.
Among the figure: 1, throttle valve; 2, high-precision filter; 3, pioneer pump; 4, fuel tank; 5, pressure gauge; 6, bypass safety valve; 7, oil and water seperator.
Embodiment
The present invention is further illustrated below in conjunction with accompanying drawing:
As shown in Figure 1, the excavator hydraulic system working connection that has the by-passing filter device comprises pioneer pump 3, fuel tank 4, excavator hydraulic system, a highi degree of accuracy in parallel is filtered oil circuit between working connection starting point pioneer pump and hydraulic oil container, highi degree of accuracy by oil circuit in parallel is filtered (impurity screening filter core precision is 3 μ m), remove fluid central impurity and moisture, guarantee the turbidity test of hydraulic system oil product.Tee union outlet by pioneer pump 3 outlets connects throttle valve 1 import, throttle valve 1 exports be connected in parallel high-precision filter 2 imports, 6 imports of bypass safety valve, high-precision filter 2 outlets connect oil and water seperator 7 imports, and oil and water seperator 7 outlets bypass safety valve 6 outlets in parallel connect oil sump tank; High-precision filter 2 external pressure gauges 5 are used for measuring filter two ends pressure reduction in the using process.Wherein, throttle valve 1 function is to keep pilot pressure and control flow; Bypass safety valve 6 functions are that the protection filter core is avoided compression shock; Pressure gauge 5 functions are to show that according to it pressure determines whether to change the bypass filter core.
Working principle of the present invention: the throttle valve 1 of flowing through after pioneer pump 3 will pressurize from the hydraulic oil that hydraulic oil container sucks enters highi degree of accuracy oil purifier 2 and carries out the highi degree of accuracy filtration, fluid after the filtration enters oil and water seperator 7 and carries out oil-water separation, and the hydraulic oil after the separation flows back to hydraulic oil container 4.
Solution by the property of the present invention is directed to the excavator hydraulic element produce the pollution problem of hydraulic pressure oil product with the main frame early stage break-in in back of dispatching from the factory; And realized the function of the central oil-water separation of hydraulic system.Hydraulic oil is maintained a very high turbidity test grade, to reach the working life that prolongs hydraulic oil, each hydraulic element of system and complete machine, reduce the shutdown maintenance service time, thereby be reached for the purpose that the user reduces user cost.According to practice, use after the art of this patent, after the excavator work 300 hours, through detecting, oil product turbidity test ratio dispatched from the factory and was significantly improved when detecting this moment, improve a lot than the equal model excavator oil product turbidity test that this by-passing filter device same time of work is not installed, the present invention has very significant use value.
Claims (3)
1. excavator hydraulic system that has the by-passing filter device, comprise pioneer pump (3), fuel tank (4) and excavator hydraulic system, it is characterized in that: be connected in parallel to the by-passing filter device between described pioneer pump (3) and the fuel tank (4), described by-passing filter device comprises throttle valve (1), high-precision filter (2), the oil and water seperator (7) that is connected in series.
2. the excavator hydraulic system that has the by-passing filter device according to claim 1 is characterized in that: be connected with pressure gauge (5) on the described oil purifier (2).
3. the excavator hydraulic system that has the by-passing filter device according to claim 1 is characterized in that: be connected in parallel to bypass safety valve (6) between described oil purifier (2) and the oil and water seperator (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101731226A CN103244515A (en) | 2013-05-11 | 2013-05-11 | Excavator hydraulic system with bypass filtering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101731226A CN103244515A (en) | 2013-05-11 | 2013-05-11 | Excavator hydraulic system with bypass filtering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103244515A true CN103244515A (en) | 2013-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101731226A Pending CN103244515A (en) | 2013-05-11 | 2013-05-11 | Excavator hydraulic system with bypass filtering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103244515A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883590A (en) * | 2014-04-15 | 2014-06-25 | 山推工程机械股份有限公司 | Bulldozer and hydraulic system thereof |
| CN111350723A (en) * | 2020-04-21 | 2020-06-30 | 三一重机有限公司 | A hydraulic system and control method thereof, and excavator |
| CN111558441A (en) * | 2020-04-10 | 2020-08-21 | 四川玉塑新材料科技有限公司 | Calcium carbonate powder production and processing system |
| CN113882927A (en) * | 2021-09-30 | 2022-01-04 | 徐州徐工挖掘机械有限公司 | Real-time monitoring and maintaining system for large hydraulic excavator oil filter |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000303504A (en) * | 1999-04-20 | 2000-10-31 | Shin Caterpillar Mitsubishi Ltd | Diagnostic system for hydraulic fluid in hydraulic machine |
| JP2002276619A (en) * | 2001-03-14 | 2002-09-25 | Sumitomo Heavy Ind Ltd | Hydraulic oil cleaning device |
| CN201446466U (en) * | 2009-08-14 | 2010-05-05 | 山东泰山钢铁集团有限公司 | Automatic oil-saving lubricating device for grinding machine center frame bracket |
| CN102949885A (en) * | 2011-08-26 | 2013-03-06 | 镇江市科能电力设备有限公司 | Filtering device with oil-water separation function |
| CN202768539U (en) * | 2012-07-05 | 2013-03-06 | 徐州徐工基础工程机械有限公司 | By-pass filtering apparatus ensuring cleanliness of heading machine hydraulic oil |
| CN203362708U (en) * | 2013-05-11 | 2013-12-25 | 山东纳科重工科技有限公司 | Excavator hydraulic system with bypass filter device |
-
2013
- 2013-05-11 CN CN2013101731226A patent/CN103244515A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000303504A (en) * | 1999-04-20 | 2000-10-31 | Shin Caterpillar Mitsubishi Ltd | Diagnostic system for hydraulic fluid in hydraulic machine |
| JP2002276619A (en) * | 2001-03-14 | 2002-09-25 | Sumitomo Heavy Ind Ltd | Hydraulic oil cleaning device |
| CN201446466U (en) * | 2009-08-14 | 2010-05-05 | 山东泰山钢铁集团有限公司 | Automatic oil-saving lubricating device for grinding machine center frame bracket |
| CN102949885A (en) * | 2011-08-26 | 2013-03-06 | 镇江市科能电力设备有限公司 | Filtering device with oil-water separation function |
| CN202768539U (en) * | 2012-07-05 | 2013-03-06 | 徐州徐工基础工程机械有限公司 | By-pass filtering apparatus ensuring cleanliness of heading machine hydraulic oil |
| CN203362708U (en) * | 2013-05-11 | 2013-12-25 | 山东纳科重工科技有限公司 | Excavator hydraulic system with bypass filter device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883590A (en) * | 2014-04-15 | 2014-06-25 | 山推工程机械股份有限公司 | Bulldozer and hydraulic system thereof |
| CN111558441A (en) * | 2020-04-10 | 2020-08-21 | 四川玉塑新材料科技有限公司 | Calcium carbonate powder production and processing system |
| CN111350723A (en) * | 2020-04-21 | 2020-06-30 | 三一重机有限公司 | A hydraulic system and control method thereof, and excavator |
| CN113882927A (en) * | 2021-09-30 | 2022-01-04 | 徐州徐工挖掘机械有限公司 | Real-time monitoring and maintaining system for large hydraulic excavator oil filter |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130814 |
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| RJ01 | Rejection of invention patent application after publication |