CN101705957B - Self-cleaning hydraulic oil-returning filtering device - Google Patents
Self-cleaning hydraulic oil-returning filtering device Download PDFInfo
- Publication number
- CN101705957B CN101705957B CN 200910246664 CN200910246664A CN101705957B CN 101705957 B CN101705957 B CN 101705957B CN 200910246664 CN200910246664 CN 200910246664 CN 200910246664 A CN200910246664 A CN 200910246664A CN 101705957 B CN101705957 B CN 101705957B
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- Prior art keywords
- filter core
- housing
- oil outlet
- shell
- bonnet
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- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a self-cleaning hydraulic oil-returning filtering device, which consists of a shell, an oil outlet pipe, a filter element and a rear cover, wherein the shell is a cylinder body with one opening end; the side wall of the shell is provided with an oil inlet; the rear cover is sleeved at the opening end of the shell, while the oil outlet pipe is sleeved at the other end of the shell; the oil outlet of the oil outlet pipe is communicated with an inner cavity of the shell; the filter element is sleeved in the inner cavity of the shell and the middle section of the filter element is opposite to the oil inlet on the shell; and the two ends of the filter element are rotatably sleeved at the extending section of the oil outlet pipe and the extending section of the rear cover. The filter element which is rotatably arranged in the inner cavity of the shell, can rotate around the revolving shaft in the shell and can be arranged eccentrically to form a trumpet-shaped passageway together with the inner wall of the shell; a guide plate leads the oil completely into the trumpet-shaped passageway to push the filter element to rotate and clean the surface of the filter element; therefore, the filter element of the invention has self-cleaning and non-blocking functions to enable the filtering device to have longer service life.
Description
Technical field
The present invention relates to a kind of hydraulic equipment, particularly relate to a kind of self-cleaning hydraulic oil-returning filtering device.
Background technique
Existing hydraulic oil-returning filtering device (shown in Figure 1A, Figure 1B), it comprises housing 1 ', filler opening 2 ', oil outlet 3 ', filter core 4 ', bonnet 5 ' and seal ring 6 '.Hydraulic oil (liquid) flows to filter core 4 ' inner chamber from filler opening 2 ', is flowed out by oil outlet 3 ' behind strainer filtering.Pollutant is filtered to be stayed filter core 4 ' inner chamber and stops up filter screen.Therefore, filter core 4 ' easily lost efficacy, and working life is short, needs often to change, and user cost is high.If the filter net jam on the filter core 4 ' is not in time changed, flow resistance increases, and can cause that hydraulic system efficient is low, and filter screen breaks when serious, and pollutant pours in the hydraulic system, causes disastrous effect.
Summary of the invention
The object of the present invention is to provide that a kind of filter core does not stop up, long service life, safe and reliable self-cleaning hydraulic oil-returning filtering device.
For achieving the above object, technical solution of the present invention is:
The present invention is a kind of self-cleaning hydraulic oil-returning filtering device, and it mainly is comprised of housing, oil outlet tube, filter core, bonnet and seal ring; Described housing is the cylindrical shell that an end opens wide, and offers filler opening at its sidewall; Open end and its insertion end that described bonnet is socketed in housing stretch into a segment distance to the housing inner chamber, and this dip section doubles as the rotating shaft of filter core; Described oil outlet tube is nested with at the other end of housing and its insertion end and stretches into a segment distance to the housing inner chamber, and this dip section doubles as the rotating shaft of filter core, and the oil outlet of oil outlet tube is communicated with the filter core inner chamber; Described filter core is nested with in housing inner chamber and its stage casing relative with filler opening on the housing, and the two ends of filter core are respectively on the dip section of the rotating dip section that is socketed in oil outlet tube and bonnet; Described seal ring is installed between filter core and oil outlet tube dip section, the bonnet dip section.
The present invention also comprises a guide plate, and it is inboard that an end of this guide plate is installed in the housing filler opening, and it is overlapping that the other end of guide plate extends to the tangent line of the top of filter core and its guide face and filter core cylindrical contour.
The all eccentric two ends that are installed in housing of described oil outlet tube and bonnet, filter core off-centre is installed in the housing inner chamber, consists of tubaeform runner with inner walls.
After adopting such scheme, because the rotatable housing inner chamber that is installed in of filter core of the present invention, it can two dip sections (rotating shaft) rotation and off-centre in housing be installed, consist of tubaeform runner with inner walls, guide plate all imports tubaeform runner with oil, the rotation of promotion filter core, the filter cartridge flushing outer surface.Therefore, formed the nonclogging function of filter core self-cleaning of the present invention, so that longer service life of the present invention and safe and reliable.In addition, apparatus of the present invention are provided with the memory block, accumulate dirt, avoid secondary pollution.
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
Description of drawings
Figure 1A is the front view of commonly using hydraulic oil-returning filtering device;
Figure 1B is that Figure 1A is along the sectional view of A-A line;
Fig. 2 A is front view of the present invention;
Fig. 2 B is that Fig. 2 A is along the sectional view of A-A line.
Embodiment
Shown in Fig. 2 A, Fig. 2 B, the present invention is a kind of self-cleaning hydraulic oil-returning filtering device, and it mainly is comprised of housing 1, oil outlet tube 2, filter core 3, bonnet 4, guide plate 5, seal ring 6.
Described housing 1 is the cylindrical shell that an end opens wide, and offers filler opening 11 at its sidewall.Open end and its insertion end that described bonnet 4 is socketed in housing 1 stretch into a segment distance to housing 1 inner chamber, and this dip section 41 doubles as the rotating shaft of filter core 3; Described oil outlet tube 2 is nested with at the other end of housing 1 and its insertion end and stretches into a segment distance to housing 1 inner chamber, and this dip section 21 doubles as the rotating shaft of filter core 3, and the oil outlet 22 of oil outlet tube 2 is communicated with the inner chamber of filter core 3; Described filter core 3 is nested with in housing 1 inner chamber and its stage casing relative with filler opening 11 on the housing 1, and the two ends of filter core 3 are respectively on the dip section 41 of the rotating dip section 21 that is socketed in oil outlet tube 2 and bonnet 4.The all eccentric two ends that are installed in housing of described oil outlet tube 2 and bonnet 4 so that filter core 3 off-centre are installed in housing 1 inner chamber, consist of tubaeform runner with housing 1 inwall.
Described seal ring 6 is installed between filter core 3 and oil outlet tube 2 dip sections 21, bonnet 4 dip sections 41.
One end of described guide plate 5 is installed in housing 1 filler opening 11 inboards, it is overlapping that the other end of guide plate 5 extends to the tangent line of the top of filter core 3 and its guide face and filter core 3 cylindrical contours, so that the hydraulic oil that flows into from filler opening 11, guide plate 5 can impact the circumferential surface at filter core 3, promote filter core 3 rotations.
Working principle of the present invention:
Hydraulic oil flows into from filler opening 11, and the tubaeform runner between guide plate 5, housing 1 inwall and filter core 3 enters oil purifier, through the filtration of filter core 3 filter screens, enters the inner chamber of filter core 3, flows out from oil outlet 22.Guide plate 5 is all guided oil into tubaeform runner, washes away filter core 3 part surfaces, and the oil of the loudspeaker runner of flowing through simultaneously produces hydraulic power, promotes filter core 3 rotations, changes surface to be cleaned.Therefore, filter core 3 constantly rotates and cleans under the effect of working fluid, constantly is rinsed, and has reached self-cleaning, nothing obstruction effect.And the particulate pollutant 10 that drops is cleaned in flushing or rotation can accumulate in storing part (dead angle), does not enter secondary pollution.
Emphasis of the present invention just is: the rotatable housing inner chamber that is installed in of filter core.
The above, only be preferred embodiment of the present invention, the rolling mounting type of the shape of housing and filter core can have multiple, therefore can not limit scope of the invention process with this, the equivalence of namely doing according to the present patent application claim and description changes and modifies, and all should still belong in the scope that patent of the present invention contains.
Claims (1)
1. self-cleaning hydraulic oil-returning filtering device, it is characterized in that: it mainly is comprised of housing, oil outlet tube, filter core, bonnet and seal ring; Described housing is the cylindrical shell that an end opens wide, and offers filler opening at its sidewall; Open end and its insertion end that described bonnet is socketed in housing stretch into segment distance formation bonnet dip section to the housing inner chamber, and this bonnet dip section doubles as the rotating shaft of filter core; Described oil outlet tube is nested with and stretches into a segment distance in the other end of housing and its insertion end to the housing inner chamber and form the oil pipe dip section, and this oil outlet tube dip section doubles as the rotating shaft of filter core, and the oil outlet of oil outlet tube is communicated with the filter core inner chamber; Described filter core is nested with in housing inner chamber and its stage casing relative with filler opening on the housing, and the two ends of filter core are respectively on the dip section of the rotating dip section that is socketed in oil outlet tube and bonnet; Described seal ring is installed between filter core and oil outlet tube dip section, the bonnet dip section; It also comprises a guide plate, and it is inboard that an end of this guide plate is installed in the housing filler opening, and it is overlapping that the other end of guide plate extends to the tangent line of the top of filter core and its guide face and filter core cylindrical contour; The all eccentric two ends that are installed in housing of described oil outlet tube and bonnet, so filter core off-centre is installed in the housing inner chamber, consists of tubaeform runner with inner walls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910246664 CN101705957B (en) | 2009-11-25 | 2009-11-25 | Self-cleaning hydraulic oil-returning filtering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910246664 CN101705957B (en) | 2009-11-25 | 2009-11-25 | Self-cleaning hydraulic oil-returning filtering device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101705957A CN101705957A (en) | 2010-05-12 |
| CN101705957B true CN101705957B (en) | 2013-01-02 |
Family
ID=42376202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910246664 Expired - Fee Related CN101705957B (en) | 2009-11-25 | 2009-11-25 | Self-cleaning hydraulic oil-returning filtering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101705957B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110478955A (en) * | 2019-07-12 | 2019-11-22 | 安徽省锦瑞汽车部件有限公司 | A kind of novel suction-type oil filter |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL76917A (en) * | 1985-11-03 | 1991-08-16 | Ar Kal Plastics Products Beit | Liquid filters with reverse flow rinsing means |
| JP2000254676A (en) * | 1999-03-12 | 2000-09-19 | Nissei Engineering:Kk | Perforated cylindrical contact oxidation rotary drum device |
| CN2406095Y (en) * | 1999-11-17 | 2000-11-15 | 河南电力试验研究所 | Inlet-filter for wash-type water-supplying pump |
| CN201578914U (en) * | 2009-11-25 | 2010-09-15 | 厦门厦工机械股份有限公司 | Self-cleaning hydraulic return oil filter device |
-
2009
- 2009-11-25 CN CN 200910246664 patent/CN101705957B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL76917A (en) * | 1985-11-03 | 1991-08-16 | Ar Kal Plastics Products Beit | Liquid filters with reverse flow rinsing means |
| JP2000254676A (en) * | 1999-03-12 | 2000-09-19 | Nissei Engineering:Kk | Perforated cylindrical contact oxidation rotary drum device |
| CN2406095Y (en) * | 1999-11-17 | 2000-11-15 | 河南电力试验研究所 | Inlet-filter for wash-type water-supplying pump |
| CN201578914U (en) * | 2009-11-25 | 2010-09-15 | 厦门厦工机械股份有限公司 | Self-cleaning hydraulic return oil filter device |
Non-Patent Citations (3)
| Title |
|---|
| 玉素甫.横向流动型精密平衡过滤的研究.《新疆师范大学学报(自然科学版)》.1998,第17卷(第03期),26-31. |
| 阿不都瓦依提• |
| 阿不都瓦依提•玉素甫.横向流动型精密平衡过滤的研究.《新疆师范大学学报(自然科学版)》.1998,第17卷(第03期),26-31. * |
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| Publication number | Publication date |
|---|---|
| CN101705957A (en) | 2010-05-12 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20191125 |