CN210265361U - Hydraulic medium filtering device for automatic transmission - Google Patents
Hydraulic medium filtering device for automatic transmission Download PDFInfo
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- CN210265361U CN210265361U CN201920822588.7U CN201920822588U CN210265361U CN 210265361 U CN210265361 U CN 210265361U CN 201920822588 U CN201920822588 U CN 201920822588U CN 210265361 U CN210265361 U CN 210265361U
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- medium
- filter
- annular
- cavity
- shell
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- 238000001914 filtration Methods 0.000 title claims abstract description 50
- 230000005540 biological transmission Effects 0.000 title claims abstract description 19
- 238000009434 installation Methods 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims description 13
- 229920001187 thermosetting polymer Polymers 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 238000011900 installation process Methods 0.000 abstract 1
- 239000003344 environmental pollutant Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 231100000719 pollutant Toxicity 0.000 description 6
- 230000000694 effects Effects 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
- 239000007788 liquid Substances 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000012535 impurity Substances 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
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Abstract
The utility model relates to a filter device, in particular to a hydraulic medium filter device for an automatic transmission; the hydraulic medium filtering device solves the technical problems that a hydraulic medium filtering device in the existing automatic transmission is short in service life, large in occupied space, complex in installation process and low in utilization rate of a filtering medium. The utility model discloses a hydraulic medium filter device for an automatic transmission, which comprises a shell and an annular filter medium assembly; an annular filter medium assembly installation cavity is arranged in the shell, the annular filter medium assembly is positioned in the annular filter medium assembly installation cavity, and the inner cavity of the shell is divided into an inner annular cavity and an 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 annular cavity; the annular filter media assembly includes at least two stages of annular filter media of similar shape and differing filter fineness.
Description
Technical Field
The utility model relates to a filter equipment, concretely relates to hydraulic medium filter equipment for automatic gearbox.
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 abraded to generate a large amount of micron-sized particles, the cleanliness of oil of the transmission can be reduced by the large amount of particles, and therefore the key parts of the transmission, such as an actuator of a hydraulic control system sensitive to the cleanliness of the oil, are constructed into irreversible damage. Therefore, a hydraulic media filter arrangement is required in the transmission to ensure the cleanliness of the filter media.
Most of the existing hydraulic medium filtering devices in the automatic transmission are divided into the following two types: one is to directly adopt a hydraulic medium filter device with higher filter precision; and the other type of the hydraulic medium filtering device is connected in series, in parallel or in a shunting manner by adopting two types of hydraulic medium filtering devices with different precisions, when the two types of hydraulic medium filtering devices are connected in series, the hydraulic medium filtering device with lower precision is positioned in front of the hydraulic medium filtering device with higher precision 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 precisions are adopted to be matched for use, the occupied space is large, and the installation procedure is complex.
In addition, because of the structural limitation or the requirement of arrangement, the medium inflow end and the medium outflow end of the existing hydraulic medium filtering device are mostly not in the range of a vertical axis, and due to the effect 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, the hydraulic medium often only passes through a certain area of the filtering medium, so that the early failure of the certain area of the filtering medium is caused, and the phenomenon that the utilization rate of the filtering medium is not high is caused.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem that the hydraulic medium filter equipment life among the current automatic gearbox is shorter, occupation space is great and the installation procedure is complicated, the filter medium utilization ratio is not high, the utility model provides a hydraulic medium filter equipment for automatic gearbox.
The technical solution of the utility model is that:
a hydraulic medium filter device for an automatic transmission, characterized by:
comprises a shell and an annular filter medium assembly;
an annular filter medium assembly installation cavity is arranged in the shell, the annular filter medium assembly is positioned in the annular filter medium assembly installation cavity, and the inner cavity of the shell is divided into an inner annular cavity and an outer annular cavity; the height of the annular filter medium assembly installation cavity is higher than that of 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 annular cavity, and the flow area of the medium outlet is larger than that of the medium outlet;
the annular filter medium assembly comprises at least two stages of annular filter media with similar shapes and different filter precisions.
Further, in order to filter magnetic particle pollutants, the filter device also comprises a magnetic filter medium adsorbed on the inner side of the top surface of the upper shell; the magnetic filter medium is limited by the magnetic filter medium limiting devices arranged on the two sides of the magnetic filter medium.
Furthermore, the annular filter medium assembly comprises a third-level filter precision filter medium, a second-level filter precision filter medium and a first-level filter precision 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 increased gradually along the flowing direction of the hydraulic medium.
Furthermore, in order to accommodate residual pollutant particles and improve the filtering effect, gaps are arranged between the annular filtering media of each stage; the higher the precision of the annular filter medium is, the smaller the gap between two adjacent stages is.
Further, a medium accommodating cavity is arranged between the outer ring cavity and the medium outlet in order to restrict the flow port, reduce pressure, collect oil, stabilize pressure, reduce cavitation and stabilize liquid flow.
Further, the filter device also comprises a sealing sleeve arranged on the upper shell; the inner hole of the sealing sleeve is connected with the medium outlet, and the excircle of the sealing sleeve is used for being connected with a connecting port of a hydraulic medium receiving device.
Further, in order to make the filter device more compact and smaller, the filter device also 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 installation cavity through thermosetting glue.
The utility model discloses compare prior art's beneficial effect is:
1. the utility model comprises a shell and an annular filter medium assembly arranged in the inner cavity of the shell, wherein the inner cavity of the shell is divided into an inner annular cavity and an outer annular cavity by the annular filter medium assembly; the annular filter medium assembly consists of at least two stages of filter media with different precisions, 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 to respectively filter impurities with different sizes, so that 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, compared with the existing filtering medium, the effective utilization area of the filtering medium filtering device is large, and the utilization rate of the filtering medium is improved.
2. The utility model discloses the integrated level is higher, and occupation space is little, can arrange arbitrary position at hydraulic system to installation procedure is simple.
3. The utility model discloses still including adsorbing the magnetic filter medium of last casing top surface inboard, have the function of filtering the magnetic particle pollutant.
4. The utility model discloses all set up the clearance between annular filter medium at different levels, and the size in clearance is relevant with filter medium's precision, and adjacent two-stage precision is big more, and the clearance is less, can hold the pollutant particle of filtering remaining various diameters, improves the filter effect.
5. The utility model discloses be equipped with the medium between outer ring cavity and medium export and hold the chamber, can play restraint flow mouth, decompression, collection oil, steady pressure, reduce cavitation erosion and stabilize the effect of liquid stream.
Drawings
FIG. 1 is a block diagram of one embodiment of the present invention;
FIG. 2 is a top view of the embodiment;
fig. 3 is a structural view of the seal cartridge in this embodiment;
FIG. 4 is a structural view of the fixing device in this embodiment;
FIG. 5 is an installation schematic of this embodiment;
FIG. 6 is a hydraulic medium flow diagram of FIG. 1;
FIG. 7 is a hydraulic medium flow diagram of FIG. 2;
the reference signs are:
1-shell, 101-upper shell, 1011-medium outlet, 102-lower shell, 1021-medium inlet, 103-inner ring cavity, 104-outer ring cavity, 105-medium containing cavity, 2-annular filter medium assembly, 201-gap, 202-third-level filter precision filter medium, 203-second-level filter precision filter medium, 204-first-level filter precision filter medium, 3-magnetic filter medium, 4-magnetic filter medium limiting device, 5-annular filter medium assembly installing cavity, 6-sealing sleeve, 7-fixing device, 701-column bolt, 702-connecting device, 8-connecting port and 9-hydraulic medium containing device.
Detailed Description
The invention is further described with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 and 2, the hydraulic media filter device includes a housing 1 and an annular filter media assembly 2.
An annular filter medium assembly installation cavity 5 is arranged in the shell 1, and the annular filter medium assembly 2 is fixed in the annular filter medium assembly installation cavity 5 through thermosetting adhesive and divides the inner cavity of the shell 1 into an inner annular cavity 103 and an outer annular cavity 104. To prevent the annular filter media assembly 2 from moving within the annular filter media assembly receiving cavity 5 and to act as a stiffener, the annular filter media assembly receiving cavity 5 is at a higher elevation than the outer annular cavity 104.
The shell 1 comprises an upper shell 101 and a lower shell 102, wherein the edge of the upper shell 101 extends into the flanging of the lower shell 102 and is buckled with each other.
The top of the upper shell 101 is provided with a medium outlet 1011 communicated with the outer ring cavity 104; the bottom of the lower shell 102 is provided with a medium inlet 1021 communicating with the inner annular chamber 103. The shape of the medium inlet 1021 is similar to the shape of the inner annular cavity 103, and the flow area of the medium inlet 1021 is slightly smaller than the cross-sectional area of the inner annular cavity 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, 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 along with the shape.
The medium accommodating cavity 105 is arranged between the outer ring cavity 104 and the medium outlet 1011 and can play a role in restricting a flow port, reducing pressure, collecting oil, stabilizing pressure, reducing cavitation and stabilizing liquid flow.
The annular filter medium assembly 2 comprises a third-level filter precision filter medium 202, a second-level filter precision filter medium 203 and a first-level filter precision filter medium 204 which are sequentially arranged along the flow direction of the hydraulic medium; the filtration precision of each stage of filter media increases in sequence 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 after filtering are arranged between the annular filtering media of each stage, and the size of the gaps 201 is related to the precision of the annular filtering media, namely, the higher the precision of the adjacent two stages of annular filtering media is, the smaller the gaps 201 are.
In order to adsorb magnetic particle pollutants remained in the hydraulic medium flow, 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 magnetic filtering medium limiting devices 4 are arranged on two sides of the width direction of the cuboid to limit the position in the corresponding direction.
Referring to fig. 3, a sealing sleeve 6 is provided on the housing 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 connecting 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, and the radial full compression of the sealing sleeve is guaranteed.
Referring to fig. 4, the upper case 101 is provided with a fixing device 7 for fixing the device to a valve plate or other member, and the fixing device 7 includes a stud bolt 701 and a coupling device 702 threadedly coupled to the stud bolt 701. The stud bolt 701 is fastened to the connecting means 702 after passing through the upper housing 101 and the valve plate or other member in sequence.
Referring to fig. 5, the hydraulic medium filter device is arranged in the hydraulic medium accommodating device 9 in a disc shape, and the edge of the medium inlet 1021 arranged in the lower housing 102 is conformal with the 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 sealed abutment with the hydraulic medium receiving device via a sealing sleeve 6. The shape of the hydraulic medium filter device is adapted to the interior of the hydraulic medium receiver 9, in the present case the front of the lower housing 102 is inclined to a certain extent as the front of the hydraulic medium receiver 9 is inclined.
Referring to fig. 6 and 7, the working principle of the device is as follows:
the hydraulic medium flows into the inner ring 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 ring cavity 103, the filtration of the magnetic filter medium is completed, the hydraulic medium flows through the third-level filter precision filter medium 202, enters the gap 201, then sequentially passes through the second-level filter precision filter medium 203 and the first-level filter precision filter medium 204, the filtration of other hydraulic media is completed, and finally enters the outer ring cavity 104, the filtered hydraulic medium finally converges into the medium accommodating cavity 105 and then flows out from the medium outlet 1011.
The above is only the embodiment of the present invention, and is not the limitation of the protection scope of the present invention, all the equivalent structure changes made in the contents of the specification and the drawings, or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (8)
1. A hydraulic media filter arrangement for an automatic transmission characterized by:
comprises a shell (1) and an annular filter medium assembly (2);
an annular filter medium assembly installation cavity (5) is formed in the shell (1), the annular filter medium assembly (2) is located in the annular filter medium assembly installation cavity (5), and the inner cavity of the shell (1) is divided 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);
the top of the upper shell (101) is provided with a medium outlet (1011) communicated with the outer ring cavity (104); the bottom of the lower shell (102) is provided with a medium inlet (1021) communicated with the inner ring cavity (103); the shape of the medium inlet (1021) is similar to the shape of the inner annular cavity (103), and the flow area of the medium inlet (1021) is larger than that of the medium outlet (1011);
the annular filter medium assembly (2) comprises at least two stages of annular filter media with similar shapes and different filtering precisions.
2. The hydraulic medium filter device for an automatic transmission according to claim 1, wherein: the magnetic filter is characterized by also comprising a magnetic filter medium (3) adsorbed on the inner side of the top surface of the upper shell (101); the magnetic filter medium (3) is limited by the magnetic filter medium limiting devices (4) arranged on the two sides of the magnetic filter medium.
3. The hydraulic medium filter device for an automatic transmission according to claim 2, characterized in that: the annular filter medium assembly (2) comprises a third-level filter precision filter medium (202), a second-level filter precision filter medium (203) and a first-level filter precision filter medium (204) which are sequentially arranged along the flow direction of the hydraulic medium; the filtering precision of each stage of annular filtering medium is increased gradually along the flowing direction of the hydraulic medium.
4. A hydraulic medium filter device for an automatic transmission according to claim 3, wherein: gaps (201) are arranged among the annular filter media of all the stages; the higher the precision of the annular filter media of two adjacent stages is, the smaller the gap (201) is.
5. The hydraulic medium filter device for an automatic transmission according to any one of claims 1 to 4, characterized in that: a medium accommodating cavity (105) is arranged between the outer ring cavity (104) and the medium outlet (1011).
6. The hydraulic medium filter device for an automatic transmission according to claim 5, wherein: the device also comprises a sealing sleeve (6) arranged on the upper shell (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.
7. The hydraulic medium filter device for an automatic transmission according to claim 6, wherein: the device also comprises a fixing device (7) arranged on the upper shell (101); the fixing device (7) comprises a stud bolt (701) and a connecting device (702) in threaded connection with the stud bolt (701).
8. The hydraulic medium filter device for an automatic transmission according to claim 7, wherein: the annular filter medium assembly (2) is fixed in the annular filter medium assembly installation cavity (5) through thermosetting adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920822588.7U CN210265361U (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 |
|---|---|---|---|
| CN201920822588.7U CN210265361U (en) | 2019-05-31 | 2019-05-31 | Hydraulic medium filtering device for automatic transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210265361U true CN210265361U (en) | 2020-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920822588.7U Withdrawn - After Issue CN210265361U (en) | 2019-05-31 | 2019-05-31 | Hydraulic medium filtering device for automatic transmission |
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| Country | Link |
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| CN (1) | CN210265361U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219860A (en) * | 2019-05-31 | 2019-09-10 | 陕西法士特齿轮有限责任公司 | A kind of hydraulic medium filter device for automatic transmission |
-
2019
- 2019-05-31 CN CN201920822588.7U patent/CN210265361U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219860A (en) * | 2019-05-31 | 2019-09-10 | 陕西法士特齿轮有限责任公司 | A kind of hydraulic medium filter device for automatic transmission |
| CN110219860B (en) * | 2019-05-31 | 2024-05-10 | 陕西法士特齿轮有限责任公司 | Hydraulic medium filtering device for automatic transmission |
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Granted publication date: 20200407 Effective date of abandoning: 20240510 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200407 Effective date of abandoning: 20240510 |