CN105649833B - The air prefilter of the engineering machinery engine of Sand Dust Environment operation - Google Patents
The air prefilter of the engineering machinery engine of Sand Dust Environment operation Download PDFInfo
- Publication number
- CN105649833B CN105649833B CN201610151969.8A CN201610151969A CN105649833B CN 105649833 B CN105649833 B CN 105649833B CN 201610151969 A CN201610151969 A CN 201610151969A CN 105649833 B CN105649833 B CN 105649833B
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- China
- Prior art keywords
- dust
- air
- housing
- engineering machinery
- pivoted
- 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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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/02—Air cleaners
- F02M35/022—Air cleaners acting by gravity, by centrifugal, or by other inertial forces, e.g. with moistened walls
- F02M35/0223—Air cleaners acting by gravity, by centrifugal, or by other inertial forces, e.g. with moistened walls by centrifugal forces, e.g. cyclones
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/02—Air cleaners
- F02M35/0201—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof
Abstract
The present invention relates to a kind of air prefilter of the engineering machinery engine of Sand Dust Environment operation, for carrying out pre- dedusting to the high dust laden air for entering filter.This device is equipped with palisade air inlet, gas outlet and dust exhausting hole；Whirlwind deflector and rotating separation mechanism are equipped with housing；Whirlwind deflector is included by an isolation cover and the inner walls annular air channel formed and the multiple flow deflectors being arranged in annular air channel, between each flow deflector is connected to inner walls and isolates cover outer wall, and with same guiding overturning angle；Rotating separation mechanism is made of central shaft, pivoted frame, multiple pivoted arms and blade, and each blade is installed on the arm end of corresponding pivoted arm, and pivoted frame is equipped with centre bore；The upper end of central shaft is fixed by a stent, and lower end is socketed in the centre bore of pivoted frame, and is embedded with ball thrust bearing.This device is loaded on before filter, it is ensured that engine exempts from the harm of a large amount of grits, prevents failure.
Description
Technical field
The present invention relates to a kind of air prefilter of the engineering machinery engine of Sand Dust Environment operation, it is loaded on engineering machinery
Before the filter of engine, for carrying out pre- dedusting to the high dust laden air before entering filter filter.
Background technology
In the fields such as mine, building, metallurgy, its operation field is inevitably dusty, works in such adverse circumstances
Engineering machinery due to the intrusion of the particles such as a large amount of sand and dust, engine is produced serious abrasive wear, cause to send out
Motivation air cleaner blocks, and makes the strainability of air cleaner reduce, and the air inflow of engine reduces, and in engine
The systems such as the lubricant passage way in portion are because by dust pollution, causing failure rate drastically to increase or even can not work, the dynamic property of complete machine, warp
Ji property and security reliability are severely impacted, and service life reduces.
For this reason, engineering machinery installs an air prefilter additional usually before the air cleaner of engine.At present,
This air prefilter is roughly divided into three classes：Benzvalene form prefilter, cyclone tube type prefilter and automatic dust-exhausting prefilter, its is corresponding
Filter efficiency be respectively：Benzvalene form prefilter >=70%, cyclone tube type prefilter >=80%, automatic dust-exhausting prefilter >=80%.Its
In, the inferior separating effect of benzvalene form prefilter, needs the dust in periodic cleaning dust arrester, pre-flock effect is poor, is gradually eliminated；
Rotational flow pipe type air prefilter actual filtration effect was caused due to tube wall dust stratification 80% or so, but in the middle and later periods in its service life
Filter efficiency to decline, the pressure loss increased dramatically, frequently need to clear up and safeguard, it is difficult to meet the use need under severe Sand Dust Environment
Ask；The current application of automatic dust-exhausting prefilter is wider, and major product has Topspin air prefilters, the Kang Ming of Donaldson Company, Inc
The Fleet Guard air prefilters of this company, Turbo Precleaner air prefilters of turbo company etc., but it is existing
These automatic dust-exhausting prefilters have the following disadvantages：First, poor with the matching of engine, the pressure loss is larger；It is second, husky
The filter efficiency of dirt is in urgent need to be improved, and especially the filter efficiency in the adverse circumstances of high concentration sand and dust is relatively low.Therefore, it is badly in need of developing
Suitable for the high-effect air pre-flock of mechanized equipment engine dusty, containing operation under the adverse circumstances such as high sand-dust particulates
Device, makes it have the particle efficiency such as high-efficiency quick-filtering sand and dust, extends engine maintaining cycle and service life, improves engine
Resist the ability of the adverse circumstances such as sand and dust, dusty infringement.
The content of the invention
The object of the present invention is to provide a kind of air for being used for the engineering machinery engine of operation under severe Sand Dust Environment is pre-
Filter, it is loaded on before engine filter, is carried out pre-filtering to the air for entering air cleaner, is blocked up to avoid filter
Plug, solves the problems, such as that engineering machinery engine is subject to sand and dust and damages and the failure that takes place frequently.
Technical scheme is as follows：
A kind of air prefilter of engineering machinery engine, comprising housing, the housing upper end be equipped with palisade air inlet, under
End bottom surface is equipped with gas outlet and dust exhausting hole；Whirlwind deflector and rotating separation mechanism are equipped with housing；The whirlwind flow guiding machine
Structure is included by an isolation cover and the inner walls annular air channel formed and the multiple flow deflectors being arranged in annular air channel, respectively leads
Between flow is connected to inner walls and isolates cover outer wall, and tilted with same channelization angle ɑ；The rotating separation mechanism is by center
Axis, pivoted frame, multiple pivoted arms and blade composition, each blade are installed on the arm end of corresponding pivoted arm, and pivoted frame is equipped with centre bore；The center
The upper end of axis is fixed by a stent, and lower end is socketed in the centre bore of pivoted frame, therebetween embedded with ball thrust bearing.
The channelization angle ɑ of each flow deflector is 20 ~ 28 °.
The gas outlet is equipped with a circle dust-break weir.
The dust exhausting hole is arcuate socket, and 2 ~ 3 arc dust exhausting holes are opened on the inside of the edge of housing bottom surface.
To be threadedly coupled between the central shaft upper end of the rotating separation mechanism and stent, and top rotation is with nut, described
Stent is located in the isolation cover and is connected with isolation cover.
The arc dust exhausting hole side is equipped with dust-break partition plate, and the rear end for blocking dirt partition plate extends to the inner wall direction of lower case
And be connected with inner wall, so as to block the dust chamber of formation front opening, back-end closure between dirt partition plate and the inner wall of lower case.
In the rotating separation mechanism, pivoted frame is in cross, and cross pivoted frame is connected with four pivoted arms.
The housing is connected with hypomere and is composed by epimere, stage casing, and upper casing is equipped with hat shape top plate and lateral air inlet
Palisade air inlet；The whirlwind deflector is arranged in middle housing；The rotating separation mechanism is arranged on hypomere shell
In vivo.
The epimere of the housing, stage casing are connected by viscose glue with hypomere or to be bolted.
This air prefilter lower end gas outlet can be connected with the air intlet of the air cleaner of engineering machinery engine,
When engineering machinery is run, extraneous dust laden air enters from this prefilter epimere palisade air inlet, passes through stage casing annular air channel
When, tilting flow deflector makes air-flow tangentially enter hypomere space at a high speed and promotes blade and pivoted frame quickly to rotate, and contains in air-flow
Larger grit be pushed to wall by centrifugal force（Inner walls）, then fall and be purged to dust exhausting hole discharge, through above-mentioned
Air stream after pre- filtering dust collecting, which from gas outlet is passed through air cleaner and further filters pure air, is supplied to engine.Using this
Air prefilter, under the adverse circumstances such as sandy environment that is dusty, diffusing high concentration, also ensures that engineering machinery is sent out
Motivation obtains the air of clean enough, engine is exempted from the harm of a large amount of grits, prevents failure, extends maintaining
Cycle.This air prefilter is simple in structure, easy for installation, high dust collection efficiency, and the grit isolated can be automatically drained out, from clear
Wash.
Brief description of the drawings
Fig. 1 is the structure diagram of air prefilter of the present invention.
Fig. 2 is the A-A sectional views of Fig. 1.
Fig. 3 is the C-C profiles of Fig. 2.
Fig. 4 is the B-B sectional views of Fig. 1.
In figure, 1-hat shape top plate, 2-grid bar, 2-1-palisade air inlet, 3-isolation cover, 4-flow deflector, 5-
Frame, 6-nut, 7-blade, 8-pivoted arm, 9-pivoted frame, 10-central shaft, 11-bearing, 12-dust exhausting hole, 12-1-block dirt
Partition plate, 12-2-dust chamber, 13-gas outlet, 13-1-dust-break weir；- epimere,- stage casing,- hypomere；ɑ-water conservancy diversion
Angle.
Embodiment
The example structure of air prefilter of the present invention is further illustrated below in conjunction with the accompanying drawings.
Such as Fig. 1, housing is by epimere, stage casingAnd hypomereIt is formed by connecting.EpimereEquipped with hat shape top plate 1 and lateral palisade
Air inlet 2-1；Stage casingInterior setting whirlwind deflector, its structure are shown in Fig. 1 and Fig. 2, isolation cover 3 and stage casingShape between inner wall
Air flue is circularized, multiple flow deflectors 4 are arranged with annular air channel, referring to Fig. 3, each flow deflector 4 is tilted with identical circumferencial direction
One channelization angle ɑ（In this example, ɑ 23o）.See Fig. 1 and Fig. 4, hypomereInterior rotating separation mechanism by central shaft 10, pivoted frame 9,
Four pivoted arms 8 and four blades 7 form；The upper end of central shaft 10 is connected with screw thread with stent 5, and stent 5 is fixed on isolation cover 4
It is interior.The lower end of central shaft 10 is socketed in the centre bore of cross pivoted frame 9, each up and down therebetween to be embedded in a Roller thrust axis
Hold 11.HypomereBottom center be equipped with gas outlet 13, edge is equipped with two arc dust exhausting holes 12；Gas outlet 13, which is equipped with, is higher than bottom
The one circle dust-break weir 13-1 in face can stop that the grit of housing bottom surface is taken out of from gas outlet.The inner side of arc dust exhausting hole 12 sets and blocks dirt
Partition plate 12-1, the rear end for blocking dirt partition plate 12-1 extend to lower housing sectionInner wall and be attached thereto so that in arc dust exhausting hole
12 tops form front end as tangential opening, the dust chamber 12-2 of back-end closure（Fig. 1）.
The gas outlet 13 of above-mentioned air prefilter is connected with the air inlet of the air cleaner of engineering machinery engine,
On-site during the engineering machinery of operation, engine is in dusty adverse circumstances, containing a large amount of sand and dust etc. in air
Grain.Air cleaner dust-cleaning principle is as follows：
Dust laden air is entered in device by grid-like air inlet 2-1, when passing through annular air channel, because of the guiding of flow deflector 4
Effect, the form that air-flow is vortexed rotate at high speed enter hypomereInterior, high flowing kinetic energy band movable vane piece 7, pivoted arm 8 and pivoted frame
9 rotate at a high speed around central shaft 10, the particulate matters such as sand and dust is subject to sufficiently large centrifugal force and is got rid of to hypomereInner walls, inner wall
Neighbouring high dust-contained airflow eddy flow to dust chamber 12-2 opening when, wherein grit is blocked dirt partition plate 12-1 and is trapped in dust chamber
In 12-2, collect and arc-like rows dirt mouth 12 is fallen under a large amount of grits in dust chamber 12-2 be discharged, more clean sky after dedusting
Gas enters the air cleaner of engine from gas outlet 13, retains aerial a small amount of fine dust through air cleaner into one
Step filters out, and gives engine and provides qualified pure air.
Claims (5)
1. a kind of air prefilter of the engineering machinery engine of Sand Dust Environment operation, includes housing, it is characterised in that the shell
Body upper end is equipped with palisade air inlet, lower end bottom surface is equipped with gas outlet and dust exhausting hole；Whirlwind deflector is disposed with housing
With rotating separation mechanism；The whirlwind deflector includes annular air channel and the arrangement formed by an isolation cover and inner walls
Multiple flow deflectors in annular air channel, between each flow deflector is connected to inner walls and isolates cover outer wall, and with same guiding
Angle ɑ is tilted；The rotating separation mechanism is made of central shaft, pivoted frame, multiple pivoted arms and blade, and each blade is installed on corresponding pivoted arm
Arm end, pivoted frame is equipped with centre bore；The upper end of the central shaft is fixed by a stent, and lower end is socketed on the centre bore of pivoted frame
In, therebetween embedded with ball thrust bearing, the stent is located in the isolation cover and is connected with isolation cover；It is described each
The guide angle ɑ of flow deflector is 20 ~ 28 °；The gas outlet is equipped with a circle dust-break weir；The dust exhausting hole is arcuate socket, 2 ~ 3 arcs
Dust exhausting hole is opened on the inside of the edge of housing bottom surface, and arc dust exhausting hole side is equipped with and blocks dirt partition plate, and the rear end for blocking dirt partition plate is downward
The inner wall direction of portion's housing extends and is connected with inner wall, so as to be opened blocking formation front end between dirt partition plate and the inner wall of lower case
Mouth, the dust chamber of back-end closure.
2. the air prefilter of the engineering machinery engine of Sand Dust Environment operation according to claim 1, it is characterised in that
To be threadedly coupled between the central shaft upper end of the rotating separation mechanism and stent, and top rotation is with nut.
3. the air prefilter of the engineering machinery engine of Sand Dust Environment operation according to claim 2, it is characterised in that
In the rotating separation mechanism, pivoted frame is in cross, and cross pivoted frame is connected with four pivoted arms.
4. the air prefilter of the engineering machinery engine of Sand Dust Environment operation according to claim 3, it is characterised in that
The housing is connected with hypomere and is composed by epimere, stage casing, upper casing be equipped with the palisade of hat shape top plate and lateral air inlet into
Gas port；The whirlwind deflector is arranged in middle housing；The rotating separation mechanism is arranged in lower piece housing.
5. the air prefilter of the engineering machinery engine of Sand Dust Environment operation according to claim 4, it is characterised in that
The epimere of the housing, stage casing are connected by viscose glue with hypomere or to be bolted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610151969.8A CN105649833B (en) | 2016-03-17 | 2016-03-17 | The air prefilter of the engineering machinery engine of Sand Dust Environment operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610151969.8A CN105649833B (en) | 2016-03-17 | 2016-03-17 | The air prefilter of the engineering machinery engine of Sand Dust Environment operation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105649833A CN105649833A (en) | 2016-06-08 |
| CN105649833B true CN105649833B (en) | 2018-05-08 |
Family
ID=56493916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610151969.8A Expired - Fee Related CN105649833B (en) | 2016-03-17 | 2016-03-17 | The air prefilter of the engineering machinery engine of Sand Dust Environment operation |
Country Status (1)
| Country | Link |
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| CN (1) | CN105649833B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843107B (en) * | 2017-12-08 | 2022-11-08 | 苏州市农业机械有限公司 | Grain drying device |
| CN112081692B (en) * | 2020-09-14 | 2022-07-26 | 上海弗列加滤清器有限公司 | Air filter |
| CN115158641A (en) * | 2020-12-08 | 2022-10-11 | 郑超 | Unmanned aerial vehicle who has rotor water conservancy diversion wear-resisting structure that sand blown by wind environment used |
| CN115992981B (en) * | 2023-03-22 | 2023-06-20 | 河南迅博机械有限公司 | General air precleaner and dust removal filter assembly |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2620772Y (en) * | 2003-06-03 | 2004-06-16 | 张诗樵 | Air filter for desert |
| CN2825990Y (en) * | 2005-06-21 | 2006-10-11 | 蔡康农 | Air pre-filter |
| JP2007154672A (en) * | 2005-11-30 | 2007-06-21 | Honda Motor Co Ltd | Cyclone air cleaner |
| CN203867738U (en) * | 2014-05-27 | 2014-10-08 | 于义 | Dust remover for multi-stage cyclone engine |
| CN105386900A (en) * | 2015-12-14 | 2016-03-09 | 威马农业机械有限公司 | Precise internal combustion engine air filter |
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2016
- 2016-03-17 CN CN201610151969.8A patent/CN105649833B/en not_active Expired - Fee Related
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| CN105649833A (en) | 2016-06-08 |
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Granted publication date: 20180508 Termination date: 20200317 |