CN110219860B - Hydraulic medium filtering device for automatic transmission - Google Patents
Hydraulic medium filtering device for automatic transmission Download PDFInfo
- Publication number
- CN110219860B CN110219860B CN201910469748.9A CN201910469748A CN110219860B CN 110219860 B CN110219860 B CN 110219860B CN 201910469748 A CN201910469748 A CN 201910469748A CN 110219860 B CN110219860 B CN 110219860B
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- China
- Prior art keywords
- medium
- annular
- cavity
- filter
- shell
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- 238000001914 filtration Methods 0.000 title claims abstract description 60
- 230000005540 biological transmission Effects 0.000 title claims abstract description 20
- 238000009434 installation Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 14
- 239000003292 glue Substances 0.000 claims description 3
- 229920001187 thermosetting polymer Polymers 0.000 claims description 3
- 239000002245 particle Substances 0.000 description 6
- 230000000087 stabilizing effect Effects 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- 239000006249 magnetic particle Substances 0.000 description 4
- 230000003749 cleanliness Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Details Of Gearings (AREA)
Abstract
The present invention relates to a filter device, and more particularly, to a hydraulic medium filter device for an automatic transmission; the hydraulic medium filtering device solves the technical problems of short service life, large occupied space, complex installation procedure and low utilization rate of the filtering medium of the existing hydraulic medium filtering device in the automatic transmission. The invention discloses a hydraulic medium filtering device for an automatic transmission, which comprises a shell and an annular filtering medium assembly; an annular filter medium assembly mounting cavity is arranged in the shell, the annular filter medium assembly is positioned in the annular filter medium assembly mounting cavity, and the inner cavity of the shell is divided into an inner ring cavity and an outer ring cavity; the shell comprises an upper shell and a lower shell buckled with the upper shell; the top of the upper shell is provided with a medium outlet communicated with the outer annular cavity; the bottom of the lower shell is provided with a medium inlet communicated with the inner ring cavity; the shape of the medium inlet is similar to that of the inner ring cavity; the annular filter media assembly includes at least two stages of annular filter media of similar shape and differing filter accuracy.
Description
Technical Field
The present invention relates to a filter device, and more particularly, to a hydraulic medium filter device for an automatic transmission.
Background
In the working process of the automatic transmission, because parts such as a clutch, a gear, a bearing, a bushing, a hydraulic valve body and the like are worn, a large amount of micron-sized particles are generated, and the cleanliness of transmission oil liquid can be reduced by a large amount of particles, so that irreversible damage is caused to key parts of the transmission, such as an actuator of a hydraulic control system which is sensitive to the oil liquid cleanliness. Therefore, it is necessary to provide a hydraulic medium filtering device in the transmission to ensure the cleanliness of the filter medium.
The prior hydraulic medium filtering device in the automatic transmission is divided into the following two types: one is to directly adopt a hydraulic medium filtering device with higher filtering precision; the other type adopts the mode of connecting two hydraulic medium filtering devices with different accuracies in series, parallel or split, and when the two hydraulic medium filtering devices are connected in series, the hydraulic medium filtering device with lower accuracy is positioned in front of the hydraulic medium filtering device with higher accuracy in the flow direction.
When the hydraulic medium filtering device with higher filtering precision is directly adopted, the size range of particles contacted by the filtering medium in the filtering device is wider, so that the service life of the filtering device is shorter.
When two hydraulic medium filtering devices with different precision are matched for use, the occupied space is large and the installation procedure is complex.
In addition, due to structural limitations or arrangement requirements, the medium inflow end and the medium outflow end of the existing hydraulic medium filtering device are not in the range of a vertical axis mostly, and due to the action of pressure difference, when the hydraulic medium flows in from the medium inflow end and flows out from the medium outflow end through the filtering medium, only a certain area of the filtering medium often passes through, so that a certain area of the filtering medium fails prematurely, and the phenomenon of low utilization rate of the filtering medium is caused.
Disclosure of Invention
The invention provides a hydraulic medium filtering device for an automatic transmission, which aims to solve the technical problems of short service life, large occupied space, complex installation procedure and low utilization rate of filtering media of the conventional hydraulic medium filtering device in the automatic transmission.
The technical scheme of the invention is as follows:
A hydraulic medium filtering device for an automatic transmission, which is characterized in that:
Comprises a shell and an annular filter medium assembly;
an annular filter medium assembly mounting cavity is formed in the shell, and the annular filter medium assembly is positioned in the annular filter medium assembly mounting cavity and divides the inner cavity of the shell into an inner ring cavity and an outer ring cavity; the annular filter medium assembly mounting cavity is higher than the outer annular cavity;
The shell comprises an upper shell and a lower shell buckled with the upper shell;
The top of the upper shell is provided with a medium outlet communicated with the outer annular cavity; the bottom of the lower shell is provided with a medium inlet communicated with the inner ring cavity; the shape of the medium inlet is similar to that of the inner ring cavity, and the flow area of the medium outlet is larger than that of the medium outlet;
the annular filter media assembly includes at least two stages of annular filter media of similar shape and differing filter accuracy.
Further, in order to filter magnetic particle contaminants, the filter device further comprises a magnetic filter medium adsorbed on the inner side of the top surface of the upper housing; the magnetic filter medium is limited by the magnetic filter medium limiting devices arranged on the two sides of the magnetic filter medium.
Further, the annular filter medium assembly comprises a three-stage filter medium, a two-stage filter medium and a first-stage filter medium which are sequentially arranged along the flow direction of the hydraulic medium; the filtering precision of each stage of annular filtering medium is gradually increased along the flowing direction of the hydraulic medium.
Further, in order to accommodate the residual pollutant particles for filtration, the filtration effect is better, and gaps are arranged between the annular filter media at each stage; the higher the precision of the annular filter media, the smaller the gap between adjacent two stages.
Further, a medium accommodating cavity is arranged between the outer ring cavity and the medium outlet for restricting a flow port, decompressing, collecting oil, stabilizing pressure, reducing cavitation and stabilizing liquid flow.
Further, the filtering device also comprises a sealing sleeve arranged on the upper shell; the inner hole of the sealing sleeve is connected with a medium outlet, and the outer circle of the sealing sleeve is used for being connected with a connecting port of the hydraulic medium receiving device.
Further, in order to make the filter device more compact and smaller, the filter device further comprises a fixing device arranged on the upper shell; the fixing device comprises a columnar bolt and a connecting device in threaded connection with the columnar bolt.
Further, the annular filter medium assembly is fixed in the annular filter medium assembly mounting cavity through thermosetting glue.
Compared with the prior art, the invention has the beneficial effects that:
1. The invention comprises a shell and an annular filter medium assembly arranged in the inner cavity of the shell, wherein the annular filter medium assembly divides the inner cavity of the shell into an inner ring cavity and an outer ring cavity; the annular filter medium assembly consists of at least two stages of filter media with different precision, and the filter media with lower filter precision and the filter media with higher filter precision are sequentially arranged according to the flowing direction of the hydraulic medium, so that impurities with different sizes are filtered respectively, and the service life of the device is prolonged; the shape of the medium inlet of the hydraulic medium filtering device is similar to that of the inner ring cavity, the distance from the medium inlet to the annular filtering medium assembly of the hydraulic medium is shortened, the hydraulic medium contacted with each part of the annular filtering medium assembly is uniform, and compared with the existing filtering medium, the effective utilization area of the hydraulic medium is larger, and the utilization rate of the filtering medium is improved.
2. The invention has higher integration level, small occupied space, simple installation procedure and can be arranged at any position of a hydraulic system.
3. The invention also comprises a magnetic filter medium adsorbed on the inner side of the top surface of the upper shell, and has the function of filtering magnetic particle pollutants.
4. According to the invention, gaps are arranged between the annular filter media at each stage, the size of the gaps is related to the precision of the filter media, and the bigger the precision of the adjacent two stages is, the smaller the gaps are, so that pollutant particles with various diameters remained by filtration can be accommodated, and the filtering effect is improved.
5. The invention is provided with the medium accommodating cavity between the outer ring cavity and the medium outlet, and can play roles of restricting a flow port, decompressing, collecting oil, stabilizing pressure, reducing cavitation and stabilizing liquid flow.
Drawings
FIG. 1 is a block diagram of one embodiment of the present invention;
FIG. 2 is a top view of this embodiment;
figure 3 is a block diagram of the sealing sleeve in this embodiment;
Fig. 4 is a structural view of the fixing device in this embodiment;
FIG. 5 is an installation schematic of the embodiment;
FIG. 6 is a flow of hydraulic medium to FIG. 1;
FIG. 7 is a hydraulic medium flow diagram of FIG. 2;
The reference numerals are:
1-housing, 101-upper housing, 1011-media outlet, 102-lower housing, 1021-media inlet, 103-inner annular cavity, 104-outer annular cavity, 105-media receiving cavity, 2-annular filter media assembly, 201-gap, 202-three stage filter precision filter media, 203-two stage filter precision filter media, 204-one stage filter precision filter media, 3-magnetic filter media, 4-magnetic filter media stop, 5-annular filter media assembly mounting cavity, 6-seal cartridge, 7-fixture, 701-stud, 702-connection, 8-connection port, 9-hydraulic medium receiving device.
Detailed Description
The invention is further described below with reference to the accompanying drawings and specific examples.
Referring to fig. 1 and 2, the hydraulic medium filtering device includes a housing 1 and an annular filter medium assembly 2.
An annular filter medium assembly mounting cavity 5 is arranged in the shell 1, and the annular filter medium assembly 2 is fixed in the annular filter medium assembly mounting cavity 5 through thermosetting glue and divides the inner cavity of the shell 1 into an inner ring cavity 103 and an outer ring cavity 104. In order to prevent the annular filter media assembly 2 from moving within the annular filter media assembly mounting cavity 5 and acting as a stiffener, the annular filter media assembly mounting cavity 5 is higher than the outer annular cavity 104.
The housing 1 includes an upper housing 101 and a lower housing 102, and edges of the upper housing 101 extend into flanges of the lower housing 102 and are fastened to each other.
A medium outlet 1011 communicated with the outer ring cavity 104 is arranged at the top of the upper shell 101; the bottom of the lower housing 102 is provided with a medium inlet 1021 communicating with the inner ring cavity 103. The shape of the medium inlet 1021 is similar to the shape of the inner annular chamber 103, and the flow area of the medium inlet 1021 is slightly smaller than the cross-sectional area of the inner annular chamber 103 and larger than the flow area of the medium outlet 1011. The cross section of the medium inlet 1021 in this embodiment is a kidney-shaped hole, and the shape of the kidney-shaped hole is similar to that of the inner ring cavity 103, and the edge of the medium inlet 1021 is fitted with the edge of the inner ring cavity 103.
A medium accommodating cavity 105 is arranged between the outer ring cavity 104 and the medium outlet 1011, and can play roles of restricting a flow port, decompressing, collecting oil, stabilizing pressure, reducing cavitation and stabilizing liquid flow.
The annular filter medium assembly 2 includes a three-stage filter medium 202, a two-stage filter medium 203, and a one-stage filter medium 204, which are sequentially arranged in the flow direction of the hydraulic medium; the filtration accuracy of each stage of the filter media is sequentially increased along the flow direction of the hydraulic medium. In order to improve the filtering effect, gaps 201 for accommodating pollutant particles with various diameters remained by filtering are arranged between each stage of annular filter media, and the size of the gaps 201 is related to the precision of the annular filter media, namely, the higher the precision of the adjacent two stages of annular filter media is, the smaller the gaps 201 are.
In order to adsorb magnetic particle pollutants remained in the flowing of the hydraulic medium, the hydraulic medium filtering device further comprises a magnetic filtering medium 3 adsorbed on the inner side of the top surface of the upper shell 101, the magnetic filtering medium 3 in the embodiment is a cuboid, and two sides of the width direction of the magnetic filtering medium 3 are provided with magnetic filtering medium limiting devices 4 for limiting in corresponding directions.
Referring to fig. 3, a sealing sleeve 6 is provided on the upper case 101; the inner hole of the sealing sleeve 6 is connected with a medium outlet 1011, and the outer circle of the sealing sleeve is used for being connected with a connecting port 8 of a hydraulic medium receiving device and is in interference fit. The distance from the lower end face of the connecting port 8 of the hydraulic medium receiving device to the upper end face of the medium outlet 1011 is larger than the axial height of the sealing sleeve 6, so that the sealing sleeve is ensured to be fully compressed in the radial direction.
Referring to fig. 4, a fixing device 7 for fixing the device to a valve plate or other member is provided on the upper case 101, and the fixing device 7 includes a stud 701 and a connection device 702 screw-coupled with the stud 701. The stud 701 is fastened to the connection device 702 after passing through the upper housing 101 and the valve plate or other components in sequence.
Referring to fig. 5, the hydraulic medium filter device is provided in a disc shape in the hydraulic medium accommodating device 9, and an edge of the medium inlet 1021 provided in the lower case 102 is fitted with an edge of the inner ring cavity 103 and extends into the hydraulic medium accommodating device 9. The medium outlet 1011 of the hydraulic medium filter device is in sealing abutment with the hydraulic medium receiving device by means of a sealing sleeve 6. The outer shape of the hydraulic medium filter device is adapted to the inner cavity of the hydraulic medium accommodating device 9, and in this embodiment, the front part of the lower housing 102 is inclined to a certain extent with the inclination of the front part of the hydraulic medium accommodating device 9.
Referring to fig. 6 and 7, the present device operates as follows:
The hydraulic medium flows into the inner annular cavity 103 from the medium inlet 1021, part of magnetic particle dirt in the hydraulic medium is adsorbed to the magnetic filter medium 3 when flowing through the inner annular cavity 103, the magnetic filter medium is filtered, the hydraulic medium flows through the three-stage filter precision filter medium 202, enters the gap 201, then sequentially passes through the two-stage filter precision filter medium 203 and the one-stage filter precision filter medium 204, and finally enters the outer annular cavity 104 after the other hydraulic medium is filtered, the filtered hydraulic medium finally flows into the medium accommodating cavity 105 and flows out of the medium outlet 1011.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the present invention and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the present invention.
Claims (6)
1. A hydraulic medium filtering device for an automatic transmission, characterized by:
comprises a shell (1) and an annular filter medium assembly (2);
An annular filter medium assembly mounting cavity (5) is formed in the shell (1), and the annular filter medium assembly (2) is positioned in the annular filter medium assembly mounting cavity (5) and divides the inner cavity of the shell (1) into an inner annular cavity (103) and an outer annular cavity (104); the height of the annular filter medium assembly installation cavity (5) is higher than that of the outer annular cavity (104);
The shell (1) comprises an upper shell (101) and a lower shell (102) buckled with the upper shell (101);
A medium outlet (1011) communicated with the outer ring cavity (104) is arranged at the top of the upper shell (101); a medium inlet (1021) communicated with the inner ring cavity (103) is arranged at the bottom of the lower shell (102); the shape of the medium inlet (1021) is similar to that of the inner ring cavity (103), and the flow area of the medium inlet (1021) is larger than that of the medium outlet (1011);
The magnetic filter medium (3) is adsorbed on the inner side of the top surface of the upper shell (101); the magnetic filter medium (3) is limited by magnetic filter medium limiting devices (4) arranged at two sides of the magnetic filter medium;
The annular filter medium assembly (2) comprises at least two stages of annular filter media which are similar in shape and different in filter precision, wherein the annular filter media with different filter precision are three-stage filter precision filter media (202), two-stage filter precision filter media (203) and one-stage filter precision filter media (204) which are sequentially arranged along the flow direction of the hydraulic medium; the filtering precision of each stage of annular filtering medium is gradually increased along the flowing direction of the hydraulic medium.
2. The hydraulic medium filtering device for an automatic transmission according to claim 1, characterized in that: gaps (201) are arranged between the annular filter media of each stage; the higher the precision of the annular filter media of adjacent two stages, the smaller the gap (201).
3. A hydraulic medium filtering apparatus for an automatic transmission according to claim 1 or 2, characterized in that: a medium accommodating cavity (105) is arranged between the outer ring cavity (104) and the medium outlet (1011).
4. A hydraulic medium filtering apparatus for an automatic transmission according to claim 3, wherein: the device also comprises a sealing sleeve (6) arranged on the upper shell (101); the inner bore of the sealing sleeve (6) is connected with a medium outlet (1011), and the outer circle of the sealing sleeve is used for being connected with a connecting port (8) of the hydraulic medium receiving device.
5. The hydraulic medium filtering device for an automatic transmission according to claim 4, characterized in that: the device also comprises a fixing device (7) arranged on the upper shell (101); the fixing device (7) comprises a columnar bolt (701) and a connecting device (702) in threaded connection with the columnar bolt (701).
6. A hydraulic medium filtering apparatus for an automatic transmission according to claim 5, wherein: the annular filter medium assembly (2) is fixed in the annular filter medium assembly mounting cavity (5) through thermosetting glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910469748.9A CN110219860B (en) | 2019-05-31 | 2019-05-31 | Hydraulic medium filtering device for automatic transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910469748.9A CN110219860B (en) | 2019-05-31 | 2019-05-31 | Hydraulic medium filtering device for automatic transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110219860A CN110219860A (en) | 2019-09-10 |
| CN110219860B true CN110219860B (en) | 2024-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910469748.9A Active CN110219860B (en) | 2019-05-31 | 2019-05-31 | Hydraulic medium filtering device for automatic transmission |
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|---|---|---|---|---|
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| CN201470214U (en) * | 2008-05-29 | 2010-05-19 | 福特全球技术公司 | Filter assembly for filtering pollutant from an automatic transmission |
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| CN104373658A (en) * | 2013-08-12 | 2015-02-25 | 浙江弘驰科技股份有限公司 | Inverse-proportion voltage-reduction electromagnetic valve for automatic executing mechanism of transmission |
| CN104548739A (en) * | 2013-10-14 | 2015-04-29 | 曼·胡默尔有限公司 | Filter element and filter system for a liquid medium, particularly diesel fuel |
| CN106537010A (en) * | 2014-05-16 | 2017-03-22 | 奥迪股份公司 | Electromagnet for a hydraulic system |
| CN210265361U (en) * | 2019-05-31 | 2020-04-07 | 陕西法士特齿轮有限责任公司 | Hydraulic medium filtering device for automatic transmission |
-
2019
- 2019-05-31 CN CN201910469748.9A patent/CN110219860B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87107633A (en) * | 1986-11-06 | 1988-06-29 | 艾伦·阿瑟·威尔斯 | Gas resonance device |
| US6235194B1 (en) * | 2000-03-08 | 2001-05-22 | Parker-Hannifin Corporation | Recharge and filter assembly with replaceable cartridge |
| CN1626267A (en) * | 2003-05-29 | 2005-06-15 | 美国Spx公司 | Centripetal current type transmission, engine filter and its manufacturing method |
| CN101500680A (en) * | 2006-08-03 | 2009-08-05 | 贺德克过滤技术有限责任公司 | Filter device |
| CN101424330A (en) * | 2007-11-01 | 2009-05-06 | 福特全球技术公司 | A suction filter for an automatic transmission |
| CN201470214U (en) * | 2008-05-29 | 2010-05-19 | 福特全球技术公司 | Filter assembly for filtering pollutant from an automatic transmission |
| CN104248885A (en) * | 2013-06-28 | 2014-12-31 | 四平大吉强磁滤清器有限公司 | Fluid filter cleaner |
| CN104373658A (en) * | 2013-08-12 | 2015-02-25 | 浙江弘驰科技股份有限公司 | Inverse-proportion voltage-reduction electromagnetic valve for automatic executing mechanism of transmission |
| CN104548739A (en) * | 2013-10-14 | 2015-04-29 | 曼·胡默尔有限公司 | Filter element and filter system for a liquid medium, particularly diesel fuel |
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| CN210265361U (en) * | 2019-05-31 | 2020-04-07 | 陕西法士特齿轮有限责任公司 | Hydraulic medium filtering device for automatic transmission |
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