CN114046295B - Suction filter - Google Patents
Suction filter Download PDFInfo
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- CN114046295B CN114046295B CN202111348822.5A CN202111348822A CN114046295B CN 114046295 B CN114046295 B CN 114046295B CN 202111348822 A CN202111348822 A CN 202111348822A CN 114046295 B CN114046295 B CN 114046295B
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- Prior art keywords
- filter screen
- filter
- stainless steel
- suction
- shell
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
Abstract
The invention provides a suction filter which comprises a shell, a framework, a stainless steel filter screen and filter paper, wherein the stainless steel filter screen is arranged in the shell, the filter paper is arranged on the stainless steel filter screen, the filter paper is matched with the stainless steel filter screen in shape, and the stainless steel filter screen is connected with an oil suction port of the shell through the framework. The stainless steel filter screen is connected with the oil suction port of the shell through the framework, the filter paper is arranged on the stainless steel filter screen, when oil enters the shell through the oil suction port, the oil flows to the oil outlet of the shell after passing through the stainless steel filter screen and the filter paper, and in the process, the oil can be subjected to double filtration by utilizing the stainless steel filter screen and the filter paper, so that the filtration effect of the suction filter is effectively improved, and the cleanliness of the oil can be better ensured.
Description
Technical Field
The invention belongs to the technical field of gearbox hydraulic systems, and particularly relates to a suction type filter.
Background
The suction filter is a common filter element in a hydraulic system of a gearbox, is usually arranged at the foremost end of the hydraulic system and is used as a first-stage filter for filtering pollutants in oil, so that the cleanliness of the oil can meet the use requirement.
As shown in fig. 1, in the conventional suction filter, a layer of filter paper 14 is transversely disposed in a housing 11, and oil enters an oil outlet 13 after passing through an oil suction port 12 and the filter paper 14. Because the oil liquid is filtered once, the filtering performance of the suction filter is poor. Therefore, how to improve the filtering performance of the suction filter becomes a technical problem which needs to be solved urgently by those skilled in the art.
Disclosure of Invention
The present invention is directed to a suction filter to solve the above problems of the prior art.
In order to realize the purpose, the invention provides the following technical scheme:
the utility model provides a suction filter, its includes shell, skeleton, stainless steel filter screen, filter paper, the stainless steel filter screen sets up in the shell, filter paper sets up on the stainless steel filter screen, filter paper with the shape looks adaptation of stainless steel filter screen, the stainless steel filter screen passes through the skeleton with the oil absorption mouth department of shell links to each other.
Preferably, the stainless steel filter screen comprises a first filter screen and a second filter screen, and the first filter screen and the second filter screen are both horizontally arranged; the framework comprises a support frame and a connecting part, wherein the support frame is arranged between the first filter screen and the second filter screen and keeps a certain distance between the first filter screen and the second filter screen, and the connecting part is used for being connected with an oil suction port of the shell; the second filter screen includes left side section filter screen and right side section filter screen, the right-hand member of left side section filter screen with the left side of connecting portion links to each other, the left end of right side section filter screen with the right side of connecting portion links to each other.
Preferably, the support frame includes the connecting rod of level setting, a plurality of with the bracing piece that the connecting rod links to each other perpendicularly, the both ends of bracing piece respectively with first filter screen with the second filter screen links to each other.
Preferably, the first and second screens are corrugated.
Preferably, the stainless steel filter screen still includes first connection filter screen and second connection filter screen, the left end of first filter screen passes through first connection filter screen with the left end of left side section filter screen links to each other, the right-hand member of first filter screen passes through the second connection filter screen with the right-hand member of right side section filter screen links to each other.
Preferably, the first connecting screen and the second connecting screen are both V-shaped structures, and an opening of the first connecting screen is opposite to an opening of the second connecting screen.
Preferably, the filter paper is disposed on a side of the stainless steel filter mesh facing the inner wall of the housing.
Preferably, the diameter of the mesh of the stainless steel strainer is larger than the diameter of the filtering holes of the filter paper.
Preferably, the first filter screen with between the inner wall of shell, the second filter screen with all be provided with the water conservancy diversion muscle between the inner wall of shell.
Preferably, the skeleton is made of a plastic material.
The invention has the beneficial effects that:
according to the suction filter, the stainless steel filter screen is connected with the oil suction port of the shell through the framework, the filter paper is arranged on the stainless steel filter screen, when oil enters the shell through the oil suction port, the oil flows to the oil outlet of the shell through the stainless steel filter screen and the filter paper, and in the process, the oil can be subjected to double filtration by using the stainless steel filter screen and the filter paper, so that the filtering effect of the suction filter can be effectively improved.
Drawings
In order to more clearly describe the embodiments of the present application or the technical solutions in the prior art, the drawings required in the embodiments will be briefly described below, and the embodiments of the present invention will be further described in detail with reference to the drawings, wherein
FIG. 1 is a schematic view of a prior art suction filter;
fig. 2 is a schematic diagram of a suction filter according to an embodiment of the present invention.
In the drawings, the reference numbers:
11. casing 12, oil suction port 13, oil outlet 14, filter paper 21 and shell
22. Oil suction port 23, oil outlet 31, first filter screen 32 and left section filter screen
33. Right section filter screen 34, first connecting filter screen 35, second connecting filter screen 41 and filter paper
51. Connecting rod 52, support rod 53, connecting part 61 and flow guide rib
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following detailed description will be provided with reference to specific embodiments.
As shown in fig. 2, an embodiment of the present invention provides a suction filter, which includes a housing 21, a skeleton, a stainless steel filter screen, and a filter paper 41, wherein the stainless steel filter screen is disposed in the housing 21, the filter paper 41 is disposed on the stainless steel filter screen, the filter paper 41 is adapted to the shape of the stainless steel filter screen, and the stainless steel filter screen is connected to the oil suction port 22 of the housing 21 through the skeleton.
According to the suction filter provided by the embodiment of the invention, the stainless steel filter screen is connected with the oil suction opening 22 of the shell 21 through the framework, the filter paper 41 is arranged on the stainless steel filter screen, when oil enters the shell through the oil suction opening 22, the oil passes through the stainless steel filter screen and the filter paper 41 and then flows to the oil outlet 23 of the shell, and in the process, the stainless steel filter screen and the filter paper 41 can be used for double filtering of the oil, so that the filtering effect of the suction filter can be effectively improved.
Further, the stainless steel filter screen comprises a first filter screen 31 and a second filter screen, and both the first filter screen 31 and the second filter screen are horizontally arranged; the framework comprises a support frame which is arranged between the first filter screen and the second filter screen and keeps the first filter screen 31 and the second filter screen at a certain distance, and a connecting part 53 which is used for connecting with an oil suction port of the shell; the second filter screen includes left side section filter screen 32 and right side section filter screen 33, the right-hand member of left side section filter screen with the left side of connecting portion 53 links to each other, the left end of right side section filter screen with the right side of connecting portion links to each other. By adopting the scheme, the filtering area of the suction filter can be effectively improved by utilizing the first filter screen and the second filter screen, so that the filtering performance of the suction filter is improved.
Specifically, the support frame including the connecting rod 51 that the level set up, a plurality of with the bracing piece 52 that connecting rod 51 links to each other perpendicularly, the both ends of bracing piece 52 respectively with first filter screen with the second filter screen links to each other to support first filter screen and second filter screen through the bracing piece, avoid first filter screen and second filter screen to contact, and then can guarantee better that the space that is used for the oil feed liquid to get into between first filter screen and the second filter screen is great.
Preferably, the first screen 31 and the second screen are corrugated, so that the filtering area of the suction filter can be further increased.
Further, the stainless steel filter screen further comprises a first connecting filter screen 34 and a second connecting filter screen 35, the left end of the first filter screen 31 is connected with the left end of the left section of filter screen 32 through the first connecting filter screen 34, and the right end of the first filter screen 31 is connected with the right end of the right section of filter screen 33 through the second connecting filter screen 35. By adopting the scheme, the first connecting filter screen and the second connecting filter screen can be used for filtering oil, so that the filter area of the suction filter is larger, and the filter effect which can be achieved is further improved.
Specifically, the first connection screen 34 and the second connection screen 35 are both V-shaped structures, and the opening of the first connection screen is opposite to the opening of the second connection screen, so that the filtering area of the suction filter is further enlarged. It can be understood that the first filter screen, the first connecting filter screen, the second filter screen and the second connecting filter screen together enclose a structure similar to a rectangle with corrugated edges, and the inner space of the structure is used for oil to enter; the connecting part 53 may preferably be a cylindrical structure adapted to the oil suction port, the lower end of the connecting part is connected to the oil suction port of the casing 21, and the upper end of the connecting part is connected to two support rods at two sides of the connecting part; the oil liquid flows into the space enclosed by the first filter screen, the first connecting filter screen, the second filter screen and the second connecting filter screen after passing through the oil suction port and the connecting part.
It may be preferable that the filter paper 41 is disposed on a side of the stainless steel filter net facing the inner wall of the housing 21. It is to be understood that the arrows in the drawing indicate the flow direction of the oil.
Specifically, the diameter of the mesh of stainless steel filter screen is greater than the diameter of the filtration pore of filter paper 41 to utilize stainless steel filter screen to carry out coarse filtration to fluid, then alright utilize filter paper 41 to carry out fine filtration to fluid, and then make fluid comparatively clean, the filtering quality of suction filter is better. It can be understood that the stainless steel filter screen has the function of intercepting larger particle pollutants in the oil liquid, so as to prevent the large particle pollutants from blocking the filter paper 41 for fine filtration, and meanwhile, the stainless steel filter screen has certain strength, can keep the shape of the filter paper and supports the filter paper, so that the stainless steel filter screen has the function of supporting the filter paper and also has the filtering function; the filter paper has the function of intercepting small particle pollutants in the oil liquid so as to better ensure the cleanliness of the oil liquid.
Further, first filter screen 31 with between the inner wall of shell 21 the second filter screen with all be provided with water conservancy diversion muscle 61 between the inner wall of shell 21 to utilize the water conservancy diversion muscle to provide the direction for fluid flowing in shell 21, make it flow more smoothly, provide the support for stainless steel filter screen and filter paper simultaneously, prevent that the filter media laminating makes fluid unable pass through on the inner wall of shell.
In particular, the skeleton is made of a plastic material, so that the skeleton has a light weight, and the connection portion of the skeleton may be connected to the oil suction port of the casing 21 by friction welding. It can be understood that the larger the filtering area of the suction filter is, the smaller the pressure drop of the suction filter is, the smaller the pressure loss of the oil flowing in the suction filter is, and the more favorable the flow output of the rear-end oil pump is; the larger the filtering area is, the larger the dust holding capacity is, the stronger the dirt holding capacity of the suction filter is, and the longer the service life of the suction filter is; the stainless steel filter screen is preferably slightly smaller than the size of the inner space of the shell, so that the inner space of the suction filter is fully utilized, the filtering area is larger and can basically reach 3 to 6 times of the prior art, the suction filter has double filtering, and various performance indexes of the suction filter are greatly improved, namely the filtering precision of the suction filter is improved, the filtering efficiency is higher, the pressure drop is reduced, the dust holding capacity is increased, and at the moment, the filter paper with higher precision can be selected to meet the higher requirement of the application environment on the cleanliness of oil.
The suction filter has higher filtering efficiency and can meet the more rigorous requirement on the cleanliness of oil; because the filter efficiency is high, a secondary fine filter element is not needed in the whole filter system under certain occasions, the cost is reduced, and the light weight is realized; the pressure drop is lower, and the efficiency of a hydraulic system can be higher; the dust holding capacity is higher, and the service life of the suction filter can be longer. Therefore, the suction filter has higher comprehensive filtering performance and can meet the application condition with higher requirements on various indexes of the suction filter. Under the condition that certain suction filters have higher requirements on filtration efficiency, pressure drop and dust holding capacity, or secondary fine filtration cannot be arranged, and the suction filters are used as fine filtration, the prior art cannot meet the requirements, but the suction filters can be used in the extreme application environments.
The general working process of the suction filter provided by the embodiment of the invention is as follows: the oil enters from the oil suction port 22 of the housing 21, passes through the stainless steel filter screen for coarse filtration and the filter paper 41 for fine filtration, is diffused out of the space in the space surrounded by the stainless steel filter screen, then flows through the flow guide ribs 61, and then flows to the oil outlet 23 of the housing 21.
The above are only preferred embodiments of the present invention, it should be noted that these examples are only for illustrating the present invention and not for limiting the scope of the present invention, and after reading the content of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalents also fall within the scope of the claims appended to the present application.
Claims (6)
1. A suction filter is characterized by comprising a shell, a framework, a stainless steel filter screen and filter paper, wherein the stainless steel filter screen is arranged in the shell, the filter paper is arranged on the stainless steel filter screen, the filter paper is matched with the stainless steel filter screen in shape, and the stainless steel filter screen is connected with an oil suction port of the shell through the framework;
the stainless steel filter screens comprise a first filter screen and a second filter screen which are both horizontally arranged; the framework comprises a support frame and a connecting part, wherein the support frame is arranged between the first filter screen and the second filter screen and keeps a certain distance between the first filter screen and the second filter screen, and the connecting part is used for being connected with an oil suction port of the shell; the second filter screen comprises a left section of filter screen and a right section of filter screen, the right end of the left section of filter screen is connected with the left side of the connecting part, and the left end of the right section of filter screen is connected with the right side of the connecting part;
the stainless steel filter screen also comprises a first connecting filter screen and a second connecting filter screen, the left end of the first filter screen is connected with the left end of the left section of filter screen through the first connecting filter screen, and the right end of the first filter screen is connected with the right end of the right section of filter screen through the second connecting filter screen;
the first connecting filter screen and the second connecting filter screen are both in a V-shaped structure, and the opening of the first connecting filter screen is opposite to the opening of the second connecting filter screen;
the first filter screen with between the inner wall of shell, the second filter screen with all be provided with the water conservancy diversion muscle between the inner wall of shell.
2. The suction filter according to claim 1, wherein the support frame comprises a horizontally disposed connecting rod, a plurality of support rods vertically connected to the connecting rod, and both ends of the support rods are connected to the first filter screen and the second filter screen, respectively.
3. The suction filter according to claim 1, wherein the first and second screens are corrugated.
4. The suction filter according to claim 1, wherein the filter paper is arranged on the stainless steel screen on the side facing the inner wall of the housing.
5. The suction filter according to claim 4, wherein the diameter of the mesh holes of the stainless steel strainer is larger than the diameter of the filter holes of the filter paper.
6. A suction filter according to any of claims 1-5, wherein the skeleton is made of a plastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111348822.5A CN114046295B (en) | 2021-11-15 | 2021-11-15 | Suction filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111348822.5A CN114046295B (en) | 2021-11-15 | 2021-11-15 | Suction filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114046295A CN114046295A (en) | 2022-02-15 |
| CN114046295B true CN114046295B (en) | 2022-11-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111348822.5A Active CN114046295B (en) | 2021-11-15 | 2021-11-15 | Suction filter |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008014416B4 (en) * | 2008-03-14 | 2014-12-18 | Ibs Filtran Kunststoff-/ Metallerzeugnisse Gmbh | Oil filter device |
| CN208711150U (en) * | 2018-07-25 | 2019-04-09 | 宋子萱 | A kind of tap filtering appts. for running water |
| CN209856146U (en) * | 2019-05-07 | 2019-12-27 | 浙江兄弟之星汽配有限公司 | Engine oil filter element |
| CN214580380U (en) * | 2020-12-31 | 2021-11-02 | 河南平和滤清器有限公司 | Oil suction filter for automatic gearbox of passenger vehicle |
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- 2021-11-15 CN CN202111348822.5A patent/CN114046295B/en active Active
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| CN114046295A (en) | 2022-02-15 |
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