CN201695437U - Auxiliary device for replacing fuel filter of excavating machine - Google Patents
Auxiliary device for replacing fuel filter of excavating machine Download PDFInfo
- Publication number
- CN201695437U CN201695437U CN2010202264209U CN201020226420U CN201695437U CN 201695437 U CN201695437 U CN 201695437U CN 2010202264209 U CN2010202264209 U CN 2010202264209U CN 201020226420 U CN201020226420 U CN 201020226420U CN 201695437 U CN201695437 U CN 201695437U
- Authority
- CN
- China
- Prior art keywords
- fuel
- oil
- filter
- valve
- preliminary filter
- 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
Abstract
The utility model discloses an auxiliary device for replacing a fuel filter of an excavating machine. The auxiliary device comprises a fuel tank, an oil water separator, a fuel preliminary filter, a delivery pump for an engine, a fuel precision filter and a fuel injector, wherein the fuel tank, the oil water separator and the fuel preliminary filter are sequentially connected w in series, the fuel outlet end of the fuel preliminary filter is connected with the fuel inlet end of the delivery pump for the engine, the fuel outlet end of the delivery pump for the engine is connected with the fuel inlet end of the fuel injector through the fuel precision filter, the delivery pump for the engine and the return oil end of the fuel injector are respectively connected with the return oil end of the fuel tank, an on-off valve is arranged between the oil water separator and the fuel preliminary filter, and one end of the on-off valve is connected with the fuel inlet end of the fuel preliminary filter while the other end is connected with the fuel outlet end of the oil water separator. When a fuel system is maintained, the on-off valve is closed, the fuel oil in an oil way can be cut off, thereby facilitating the replacement of the fuel preliminary filter, preventing fuel leakage, avoiding fire hazards, saving cost, and achieving safety and reliability.
Description
Technical field
The utility model relates to a kind of fuel filter of excavator, and especially a kind of replacing servicing unit of excavator fuel filter belongs to technical field of engineering machinery.
Background technology
Fuel oil system of excavator is a very important system, and the running quality of fuel oil system directly has influence on the performance of engine power and the height of excavator operation efficient.Fuel oil must just can avoid engine fuel oil system to break down through effectively filtering in being input to the path of motor, thereby prolongs the application life of motor.Fuel filter can stop impurity and dust to invade fuel oil system inside and cause fault.When fuel oil system of excavator is maintained, need the periodic replacement fuel preliminary filter, but owing to fuel preliminary filter is communicated with fuel tank, change inconvenience, fuel leakage takes place during replacing easily, cause unnecessary waste, run into the also possible initiation fire of naked light, cause serious accident.
The utility model content
The purpose of this utility model provides a kind of excavator fuel filter and changes servicing unit, adopt this device after, when fuel oil system of excavator was maintained, fuel filter was changed convenient, can prevent fuel leakage simultaneously, the saving cost is safe and reliable.
The utility model is achieved by the following technical programs:
A kind of excavator fuel filter is changed servicing unit, comprises fuel tank, oil water separator, fuel preliminary filter, motor oil transfer pump, secondary fuel oil filter, fuel injector; Described fuel tank, oil water separator, fuel preliminary filter are connected in series successively, described fuel preliminary filter oil outlet end is connected with described motor oil transfer pump oil inlet end, motor oil transfer pump oil outlet end is connected with described fuel injector oil inlet end by secondary fuel oil filter, and the oil revolving end of described motor oil transfer pump, fuel injector is connected with the fuel tank oil revolving end respectively; Be provided with on-off valve between described oil water separator and the fuel preliminary filter, described on-off valve one end is connected with the fuel preliminary filter oil inlet end, and the on-off valve other end is connected with the oil water separator oil outlet end.
The purpose of this utility model can also further realize by following technical measures.
Aforesaid excavator fuel filter is changed servicing unit, and wherein said on-off valve is a ball valve.
The utility model is simple in structure, sets up on-off valve between oil water separator and fuel preliminary filter, and during fuel oil system work, on-off valve is in opening state, guarantees the normal circulation of fuel oil in fuel oil system; During the fuel oil system maintenance, close on-off valve, can block the path that fuel tank leads to fuel preliminary filter, be convenient to change fuel preliminary filter, prevent fuel leakage, avoid breaking out of fire, save cost, improve the safety of fuel oil system.
Advantage of the present utility model and characteristics will illustrate by the non-limitative illustration of following preferred embodiment and explain that these embodiment only provide as an example with reference to accompanying drawing.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
As shown in Figure 1, the utility model comprises fuel tank 1, oil water separator 2, fuel preliminary filter 3, motor oil transfer pump 4, secondary fuel oil filter 5, fuel injector 6; Fuel tank 1, oil water separator 2, fuel preliminary filter 3 are connected in series successively, the oil outlet end of fuel preliminary filter 3 is connected with the oil inlet end of motor oil transfer pump 4, the oil outlet end of motor oil transfer pump 4 is connected with the oil inlet end of fuel injector 6 by secondary fuel oil filter 5, and the oil revolving end of motor oil transfer pump 4, fuel injector 6 is connected with the oil revolving end of fuel tank 1 respectively; Also be provided with on-off valve 7 between oil water separator 2 and the fuel preliminary filter 3, on-off valve 7 one ends are connected with the oil inlet end of fuel preliminary filter 3, and on-off valve 7 other ends are connected with the oil outlet end of oil water separator 2, and on-off valve 7 is a ball valve.
When carrying out the fuel oil system maintenance, close on-off valve 7, can block the path that fuel tank 1 leads to fuel preliminary filter 3, be convenient to change fuel preliminary filter 3, can prevent fuel leakage simultaneously, avoid the generation of fire; After replacing finishes, open on-off valve 7, guarantee the normal circulation of fuel oil in fuel oil system.
In addition to the implementation, the utility model can also have other embodiments, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of the utility model requirement.
Claims (2)
1. an excavator fuel filter is changed servicing unit, comprises fuel tank (1), oil water separator (2), fuel preliminary filter (3), motor oil transfer pump (4), secondary fuel oil filter (5), fuel injector (6); Described fuel tank (1), oil water separator (2), fuel preliminary filter (3) is connected in series successively, described fuel preliminary filter (3) oil outlet end is connected with described motor oil transfer pump (4) oil inlet end, motor oil transfer pump (4) oil outlet end is connected with described fuel injector (6) oil inlet end by secondary fuel oil filter (5), described motor oil transfer pump (4), the oil revolving end of fuel injector (6) is connected with fuel tank (1) oil revolving end respectively, it is characterized in that: be provided with on-off valve (7) between described oil water separator (2) and the fuel preliminary filter (3), described on-off valve (7) one ends are connected with fuel preliminary filter (3) oil inlet end, and on-off valve (7) other end is connected with oil water separator (2) oil outlet end.
2. excavator fuel filter as claimed in claim 1 is changed servicing unit, and it is characterized in that: described on-off valve (7) is a ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202264209U CN201695437U (en) | 2010-06-13 | 2010-06-13 | Auxiliary device for replacing fuel filter of excavating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202264209U CN201695437U (en) | 2010-06-13 | 2010-06-13 | Auxiliary device for replacing fuel filter of excavating machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201695437U true CN201695437U (en) | 2011-01-05 |
Family
ID=43396677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202264209U Expired - Fee Related CN201695437U (en) | 2010-06-13 | 2010-06-13 | Auxiliary device for replacing fuel filter of excavating machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201695437U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518536A (en) * | 2011-12-07 | 2012-06-27 | 三一重机有限公司 | Fuel oil filtering system for hydraulic excavator |
| CN103557040A (en) * | 2013-10-30 | 2014-02-05 | 中国航空动力机械研究所 | Automatic oil drainage device |
| CN104153925A (en) * | 2014-08-19 | 2014-11-19 | 上海三一重机有限公司 | Automatic filtering structure and filtering method for excavator fuel oil and excavator |
| CN104196656A (en) * | 2014-08-15 | 2014-12-10 | 徐州徐工挖掘机械有限公司 | Low-temperature energy-saving system for engineering machinery |
| CN105986594A (en) * | 2015-03-19 | 2016-10-05 | 住友建机株式会社 | Excavator |
| CN106968852A (en) * | 2017-03-22 | 2017-07-21 | 青岛雷沃工程机械有限公司 | A kind of fuel oil system of excavator |
-
2010
- 2010-06-13 CN CN2010202264209U patent/CN201695437U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518536A (en) * | 2011-12-07 | 2012-06-27 | 三一重机有限公司 | Fuel oil filtering system for hydraulic excavator |
| CN103557040A (en) * | 2013-10-30 | 2014-02-05 | 中国航空动力机械研究所 | Automatic oil drainage device |
| CN103557040B (en) * | 2013-10-30 | 2016-03-23 | 中国航空动力机械研究所 | Automatic discharge equipment |
| CN104196656A (en) * | 2014-08-15 | 2014-12-10 | 徐州徐工挖掘机械有限公司 | Low-temperature energy-saving system for engineering machinery |
| CN104196656B (en) * | 2014-08-15 | 2017-04-26 | 徐州徐工挖掘机械有限公司 | Low-temperature energy-saving system for engineering machinery |
| CN104153925A (en) * | 2014-08-19 | 2014-11-19 | 上海三一重机有限公司 | Automatic filtering structure and filtering method for excavator fuel oil and excavator |
| CN105986594A (en) * | 2015-03-19 | 2016-10-05 | 住友建机株式会社 | Excavator |
| CN106968852A (en) * | 2017-03-22 | 2017-07-21 | 青岛雷沃工程机械有限公司 | A kind of fuel oil system of excavator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201695437U (en) | Auxiliary device for replacing fuel filter of excavating machine | |
| CN102155440A (en) | Hydraulic energy-saving motor device of hydraulic pump station | |
| CN202860889U (en) | Automatic start-stop device for high pressure water cleaning device | |
| CN206921622U (en) | A kind of on-line automatic oil-filtering apparatus of on-load tap changers of transformers | |
| CN102226416B (en) | Dual-flow loop sealing oil improvement system of steam turbine generator set | |
| CN202327597U (en) | Automatic control device of oil system | |
| CN202613047U (en) | Natural gas transmission system | |
| CN215596407U (en) | Water turbine main shaft seal water supply and drainage system | |
| CN201802626U (en) | Oil supply system of screw compressor | |
| CN202176910U (en) | High pressure waterway control system | |
| CN102926988A (en) | Automatic discharge device of circuit breaker hydraulic mechanism | |
| CN113336299A (en) | Condensate fine treatment operation protection system | |
| CN202755393U (en) | Automatic flameout resisting system and excavator thereof | |
| CN202628227U (en) | Rotating installation type engine oil filter | |
| CN202381417U (en) | Hydraulic energy saving motor device for hydraulic pump station | |
| CN203532052U (en) | Exhausting fence automatic-cleaning system for explosion-proof vehicle driven by diesel engine | |
| CN102011757B (en) | Hydraulic system | |
| CN202674784U (en) | Pneumatic automatic oil ejector | |
| CN101984246A (en) | Fuel oil filter | |
| CN204921399U (en) | Valve is closed to direction changing variable sectional type of protection motor | |
| CN201407156Y (en) | Hydraulic system oil starvation protecting mechanism of concrete delivery pump | |
| CN204780333U (en) | Washing machine's urgent drainage device | |
| CN204986998U (en) | Two fuel pump trouble automatic switch -over combustors | |
| CN203441765U (en) | Pneumatic water pump with self-control device | |
| CN202472277U (en) | Automatic control device of grating machine |
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 |
Granted publication date: 20110105 Termination date: 20150613 |
|
| EXPY | Termination of patent right or utility model |