CN106968919A - Vehicle-mounted air compressor drainback passage structure - Google Patents
Vehicle-mounted air compressor drainback passage structure Download PDFInfo
- Publication number
- CN106968919A CN106968919A CN201710221424.4A CN201710221424A CN106968919A CN 106968919 A CN106968919 A CN 106968919A CN 201710221424 A CN201710221424 A CN 201710221424A CN 106968919 A CN106968919 A CN 106968919A
- Authority
- CN
- China
- Prior art keywords
- oil
- drainback passage
- air compressor
- vehicle
- end cap
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/04—Measures to avoid lubricant contaminating the pumped fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/16—Filtration; Moisture separation
Abstract
The present invention relates to air compressor technical field, specifically related to a kind of vehicle-mounted air compressor drainback passage structure, the small end cover and big end cap installed including cooperating, cavity is formed between end cap and small end cover greatly, the big end cap side has the cylindrical depression for accommodating oil core, there is spill port, spill port, which is communicated to by drainback passage in the oil outlet of big end cap and small end cover opposite side, the drainback passage, is provided with unidirectional strainer valve in depression.The present invention in drainback passage by setting unidirectional strainer valve, oil can be played a role in filtering, and because unidirectional strainer valve only has one-way flow, so the oil at spill port can be back to from drainback passage in the cavity of big end cap and small end cover formation, and oil can not be flowed at spill port at the oil outlet of cavity, the oily aggregate amount at spill port is so reduced, the load of oil core is also just reduced, the oil content of compressed air is reduced.
Description
Technical field：
The present invention relates to air compressor technical field, and in particular to a kind of vehicle-mounted air compressor drainback passage structure.
Background technology：
Air compressor is a kind of equipment to compressed gas.The species of air compressor (air compressor machine) is a lot, by work
Three major types can be divided into by making principle：Displacement type, power type (velocity profile or turbine type), heating power type compressor；It can divide by lubricating system
For oilless air compressor and oil lubricating air compressor machine；It can be divided into by performance：The air compressor machine such as low noise, variable ratio frequency changer, explosion-proof；Can by purposes
It is divided into：Freezer compressor, compressor of air conditioner, refrigeration compressor, oil field compressor, natural gas filling station are used, rock drill is used, wind
Power driven tools, vehicle braking are used, door and window opens and closes use, textile machinery, tyre inflating use, plastics machinery compressor, mining compression
Machine, marine compressor, medical-grade compressor, sandblasting spray painting are used；It can be divided into by pattern：It is fixed, portable, closed.
During normal work, the oil with certain pressure, the recess for installing oil core in valve body has a spill port, by valve
Stomidium is flowed under body, then flows back to cavity from upper end.But when shutting down because the pressure of recess is less than the pressure in cavity, institute
Recess is entered by drainback passage from cavity some oil, such recess assembles oil-collecting, in start next time
Oil is wicked by oil and received, and adds the load of oil core, shortens the service life of oil core, and can be brought into by the oil assembled
Into compressed air, cause compressed air oil content high.
The content of the invention：
The technical problems to be solved by the invention are to overcome existing technological deficiency that there is provided a kind of vehicle-mounted air compressor
Drainback passage structure.
The technical problems to be solved by the invention are realized using following technical scheme：
A kind of vehicle-mounted air compressor drainback passage structure, including the small end cover and big end cap installed that cooperate, big end
Cavity is formed between lid and small end cover, the big end cap side has in the cylindrical depression for accommodating oil core, depression and had back
Oilhole, spill port is communicated in the oil outlet of big end cap and small end cover opposite side, the drainback passage by drainback passage and set
There is unidirectional strainer valve.
The a diameter of 0.5mm of drainback passage.
The unidirectional strainer valve includes filter house and the guide part welded with filter house, and guide part includes spring and pressing plate.
Atomization portion is provided with above the filter house, the atomization portion includes helical duct, the annular being opened in atomization portion
Connection circular passage below passage, helical duct, circular passage bottom surface is provided with to the inclined jet in atomization portion axle center.
The pressing plate is welded on below filter house by spring.
The a diameter of 0.3mm of oil-through hole of the unidirectional strainer valve.
The unidirectional strainer valve is made up of copper material.
Beneficial effects of the present invention are：By setting unidirectional strainer valve in drainback passage, filtering can be played to oil and is made
With, and because unidirectional strainer valve only has one-way flow, so the oil at spill port can be back to big end cap from drainback passage
In the cavity of small end cover formation, and oil can not be flowed at spill port at the oil outlet of cavity, so be reduced at spill port
Oily aggregate amount, also just reduce the load of oil core, reduce the oil content of compressed air, and atomization portion can be entered to oil
Row is decentralized, increase oil and filter house contact area, improves filter effect.
Brief description of the drawings：
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is a side schematic view of the big end cap of the present invention；
Fig. 3 is another side schematic view of the big end cap of the present invention；
Fig. 4 is schematic cross-section at Fig. 3 A-A；
Fig. 5 is the schematic diagram of the unidirectional strainer valve of the present invention.
Embodiment：
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is expanded on further.
A kind of vehicle-mounted air compressor drainback passage structure, including the small end cover 1 and big end cap 2 installed that cooperate, greatly
Form cavity between end cap 2 and small end cover 1, big end cap 2 and small end cover 1 install (big end cap and small in accompanying drawing by the locking of bolt 3
End cap is separated), the cavities seals between big end cap 2 and small end cover 1, big end cap 2 and small end cover 1 bottom is to be immersed in lubrication
In oil, pasta line 4 as shown is, is that pasta line is drawn for the ease of understanding here, pasta line is partially submerged in below 4
In lubricating oil, closed cavity is formed in the part on pasta between so big end cap and small end cover, the big side of end cap 2 has
Accommodate to install in the cylindrical depression 5 of oil core, depression 5 in the oil core that can separate oil gas, depression and there is spill port
6, spill port 6 is communicated in the oil outlet 8 of big end cap 2 and the opposite side of small end cover 1, drainback passage by drainback passage 7 and is provided with
Unidirectional strainer valve 9, using the filtering and one-way flow of unidirectional strainer valve, prevents oil from being entered from oil outlet by drainback passage
At spill port.
The a diameter of 0.5mm of drainback passage.Original drainback passage diameter is 0.7mm, and 0.5mm is changed to now, can so be reduced
The oil inlet quantity of oil outlet after a shutdown.
Unidirectional strainer valve includes filter house 91 and the guide part welded with filter house, and guide part includes spring 92 and pressing plate
93, pressing plate is welded on below filter house by spring.During normal work, oil enters drainback passage from spill port during oil return, then
Filtered by filter house, spring can have been rushed when oil circuit oil mass is excessive so that pressing plate move down such oil continue through drainback passage from
Oil outlet enters in cavity, and when shutting down, empty cavity pressure is more than recess pressure, so oil can be logical from oil outlet into oil return
Road, but be due to pressing plate backstop action, so oil will not enter spill port by unidirectional strainer valve.
Atomization portion is provided with above filter house, atomization portion includes helical duct 94, the circular passage 95 being opened in atomization portion,
The lower section of helical duct 94 connection circular passage 95, the bottom surface of circular passage 95 is provided with to the inclined jet 96 in atomization portion axle center, oil
The jet for entering helical duct from helical duct top and then being arranged again by circular passage and from circular passage disperses to spray,
So increase the aerosol dispersion degree of oil, improve oil and filter house contact area, improve filter effect.
The a diameter of 0.3mm of oil-through hole of unidirectional strainer valve.
Unidirectional strainer valve is made up of copper material.
Tested for the big end cap before improvement, after improvement.
1st, experimental facilities
2nd, experimental principle
Under certain conditions, the air compressor machine under test rated discharge pressure P, fixed by collection after air compressor machine is stable
The compressed air V of amount, compressed air can be collected diaphragm by gathering after diaphragm suspension oil in air and leave, then to collection
Weighed after diaphragm drying, the collection increased weight of diaphragm is the weight m of oil, by calculating suspension oil in compressed air
Content X.
Wherein：X is oil content, unit mg/m3
M1 starts to gather the initial weight of film, unit mg after drying for experiment
M2 terminates to gather the final weight of film, unit mg after drying for experiment
V is the volume flow of collection gas, unit m3/min
T is gas collecting time, unit min
Because the steam contained during experiment in air, which is collected diaphragm, absorbs the weight that can influence to gather diaphragm, experiment
Drying and processing all is carried out to collection diaphragm after preceding and experiment.
3rd, experimentation and step
Test air compressor machine is installed, each tie point is checked, there must not be air leak position, operating unit to rated pressure, debugging is surveyed
Trial assembly is put, and stable volume flow is advisable at 2/3rds of flowmeter range, and experiment makes whole test system stable before starting
System is no longer debugged at least more than 30min, experimentation；
Gather the preparation of film：Prepare 3 collection films, in insulating box drying, drying temperature sets 60 DEG C, drying time
30min, weigh m1(mg)；To collection diaphragm drying after the quantitative compressed air of collection, drying temperature sets 60 DEG C, drying time
30min, weigh m2(mg)。
4th, test data is recorded
Drainback passage test data before improvement, as shown in Table 1
Table one
Drainback passage test data after improvement, as shown in Table 2
Table two
Note：1. establishing criteria：8573.2 compressed airs of ISO-Part II：《Determine the test side of suspension oil content
Method》Test；
2. from test record, take three groups close to data, seek its average value.
3.PPM is the oil molecule content in industry universal unit, as every million gas molecule.
Gather diaphragm oil content lower, illustrate that the oily aggregate amount at spill port is fewer.
From table one and the contrast of table two as can be seen that the exhaust oil content tested is low in table two, illustrate to back from cavity recessed
The oil mass for falling into place is few, reduces the oil content of compressed air after start, to a certain extent, reduces the winged oil mass of air compressor machine.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (7)
1. a kind of vehicle-mounted air compressor drainback passage structure, including the cooperate small end cover and big end cap installed, big end cap
Cavity is formed between small end cover, the big end cap side, which has in the cylindrical depression for accommodating oil core, depression, has oil return
Hole, spill port is communicated to the oil outlet of big end cap and small end cover opposite side by drainback passage, it is characterised in that the oil return
Unidirectional strainer valve is provided with passage.
2. vehicle-mounted air compressor drainback passage structure according to claim 1, it is characterised in that the drainback passage is straight
Footpath is 0.5mm.
3. vehicle-mounted air compressor drainback passage structure according to claim 1, it is characterised in that the unidirectional strainer valve
The guide part welded including filter house and with filter house, guide part includes spring and pressing plate.
4. vehicle-mounted air compressor drainback passage structure according to claim 3, it is characterised in that above the filter house
Provided with atomization portion, the atomization portion includes connected ring below helical duct, the circular passage being opened in atomization portion, helical duct
Shape passage, circular passage bottom surface is provided with to the inclined jet in atomization portion axle center.
5. vehicle-mounted air compressor drainback passage structure according to claim 3, it is characterised in that the pressing plate passes through bullet
Spring is welded on below filter house.
6. vehicle-mounted air compressor drainback passage structure according to claim 3, it is characterised in that the unidirectional strainer valve
The a diameter of 0.3mm of oil-through hole.
7. vehicle-mounted air compressor drainback passage structure according to claim 3, it is characterised in that the unidirectional strainer valve
It is made up of copper material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710221424.4A CN106968919A (en) | 2017-04-06 | 2017-04-06 | Vehicle-mounted air compressor drainback passage structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710221424.4A CN106968919A (en) | 2017-04-06 | 2017-04-06 | Vehicle-mounted air compressor drainback passage structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106968919A true CN106968919A (en) | 2017-07-21 |
Family
ID=59336378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710221424.4A Pending CN106968919A (en) | 2017-04-06 | 2017-04-06 | Vehicle-mounted air compressor drainback passage structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106968919A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005344694A (en) * | 2004-06-07 | 2005-12-15 | Nissan Diesel Motor Co Ltd | Oil filter of diesel engine |
| CN102853444A (en) * | 2012-09-25 | 2013-01-02 | 北京北机机电工业有限责任公司 | Low-oil-pressure oil material atomizing device |
| CN202835445U (en) * | 2012-08-23 | 2013-03-27 | 中国航空动力机械研究所 | Centrifuge atomizing spray nozzle |
| CN103867875A (en) * | 2014-03-28 | 2014-06-18 | 毅联实业(上海)有限公司 | Self-suction piston type atomized lubricator |
| CN205172962U (en) * | 2015-12-09 | 2016-04-20 | 惠州市标顶空压技术有限公司 | One -way oil return controlling means of screw compressor |
| CN105673485A (en) * | 2016-01-15 | 2016-06-15 | 沈阳天朗艾尔压缩机有限公司 | Sliding-vane air compressor |
| CN205533254U (en) * | 2016-02-01 | 2016-08-31 | 曹明勇 | Sliding blade type air compressor 's uninstallation gas circuit system |
-
2017
- 2017-04-06 CN CN201710221424.4A patent/CN106968919A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005344694A (en) * | 2004-06-07 | 2005-12-15 | Nissan Diesel Motor Co Ltd | Oil filter of diesel engine |
| CN202835445U (en) * | 2012-08-23 | 2013-03-27 | 中国航空动力机械研究所 | Centrifuge atomizing spray nozzle |
| CN102853444A (en) * | 2012-09-25 | 2013-01-02 | 北京北机机电工业有限责任公司 | Low-oil-pressure oil material atomizing device |
| CN103867875A (en) * | 2014-03-28 | 2014-06-18 | 毅联实业(上海)有限公司 | Self-suction piston type atomized lubricator |
| CN205172962U (en) * | 2015-12-09 | 2016-04-20 | 惠州市标顶空压技术有限公司 | One -way oil return controlling means of screw compressor |
| CN105673485A (en) * | 2016-01-15 | 2016-06-15 | 沈阳天朗艾尔压缩机有限公司 | Sliding-vane air compressor |
| CN205533254U (en) * | 2016-02-01 | 2016-08-31 | 曹明勇 | Sliding blade type air compressor 's uninstallation gas circuit system |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170721 |