CN106801693A - A kind of superposing type filter - Google Patents
A kind of superposing type filter Download PDFInfo
- Publication number
- CN106801693A CN106801693A CN201710229506.3A CN201710229506A CN106801693A CN 106801693 A CN106801693 A CN 106801693A CN 201710229506 A CN201710229506 A CN 201710229506A CN 106801693 A CN106801693 A CN 106801693A
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- Prior art keywords
- filter
- oil
- cover plate
- mounting surface
- filter core
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Classifications
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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 discloses a kind of superposing type filter, including filter body, oil circuit cover plate and filter core；The filter body is installed between valve platform and plate type hydraulic valve, the oil circuit cover plate is mounted on the filter body, the filter body is provided with filter core chamber, the filter core is placed in the filter core chamber, a main oil gallery is provided with inside the filter body, the main oil gallery is connected with the filter core chamber, will enter the filter core outside that the medium of main oil gallery is introduced in filter core chamber；The filter body one side offers filter oil inlet, and another side is provided with filter oil-out, and the filter oil inlet is connected with the main oil gallery, and the filter oil-out is connected by the oil circuit in the oil circuit cover plate with the filter core chamber.The present invention can be not high in working connection filtering accuracy, and in the case of filtration reliability deficiency, the control valve higher to required precision carries out local filtration, forms localised protection, improves the service life of equipment and system.
Description
Technical field
The present invention relates to technical field of hydraulic pressure, and in particular to a kind of superposing type filter for media filtration.
Background technology
The cleannes of medium are crucial technical indicators in hydraulic system, and the Index Influence the life-span of whole hydraulic system
And reliability.Particularly with the high-precision hydraulic control valve such as electrohydraulic servo valve, electro-hydraulic proportional valve, they are to the clear of hydraulic medium
Cleanliness requirement is higher, and their failure is more because oil contamination causes.
At present, it is the dielectric clean degree of guarantee hydraulic system, it is general using installation high pressure filter, return filter, suction
The mode of oil strainer is filtered comprehensively to the medium in hydraulic circuit.In actual engineer applied, high-precision pipeline
Formula filter is easily blocked, and often filter core size is larger to meet the conveyance capacity of working connection, relatively costly.After filter core is blocked
Occur that pressure drop is excessive if changing filter core not in time, the failure such as filter punctures makes systematic function reduction or dielectric clean degree
It is completely out of control.Need to change pipe especially if there is the problem that filtering accuracy is inadequate in existing hydraulic system, during upgrading
Pipe filter then needs detaching pipelines or even again pipe arrangement.
Therefore, it is how not high in working connection filtering accuracy, filtration reliability deficiency in the case of, meet electrohydraulic servo valve,
Requirement of the high-precision hydraulic control valve such as electro-hydraulic proportional valve to the cleannes of hydraulic medium, is reduced because oil contamination causes event
Barrier, improves its service life, is the technical problem of those skilled in the art's urgent need to resolve.
The content of the invention
In order to solve the above technical problems, the invention provides a kind of superposing type filter, the filter can be superimposed installation
Between valve platform and plate type hydraulic valve, can solve it is not high in working connection filtering accuracy, filtration reliability deficiency in the case of, it is right
Required precision control valve higher carries out local filtration, meet its to hydraulic medium cleannes requirement, greatly reduce due to
Oil contamination, the cleannes failure for causing not high, form localised protection, its service life are improve, while also greatly improving
The overall reliability of hydraulic system.
In order to realize above-mentioned technical purpose, the invention provides a kind of superposing type filter, including filter body, oil circuit lid
Plate and filter core；The filter body is installed between valve platform and plate type hydraulic valve, and the oil circuit cover plate is mounted at institute
State on filter body, the filter body is provided with filter core chamber, and the filter core is placed in the filter core chamber, inside the filter body
A main oil gallery is provided with, the main oil gallery is connected with the filter core chamber, the filter core that the medium of main oil gallery is introduced in filter core chamber will be entered
Outside；The filter body one side offers filter oil inlet, and another side is provided with filter oil-out, the filter
Oil inlet is connected with the main oil gallery, and the filter oil-out is connected by the oil circuit in the oil circuit cover plate with the filter core chamber
It is logical；Medium enters the filter core chamber from after filter oil inlet entrance by the main oil gallery, then by the filter core mistake
After filter, the filter oil-out is flowed to by the oil circuit of the oil circuit cover plate and will be filtered by the filter oil-out
Medium discharge afterwards.
The beneficial effects of the invention are as follows a kind of superposing type filter provided by the present invention may be mounted at plate type hydraulic
Between valve and valve platform, can solve it is not high in working connection filtering accuracy, filtration reliability deficiency in the case of, to required precision compared with
Control valve high carries out local filtration, meets its cleannes requirement to hydraulic medium, greatly reduces due to oil contamination, clearly
The cleanliness failure for causing not high, localised protection is formd to control valve, its service life is improve, while also substantially increasing liquid
The overall reliability of pressure system.
On the basis of above-mentioned technical proposal, the present invention can also make improvement further below.
Further, the filter body has the first mounting surface, the second mounting surface and the 3rd mounting surface, and described first installs
The filter oil inlet is offered on face, second mounting surface is provided with oil after the filter connected with the filter oil-out
Mouth and the gateway in the filter core chamber, the 3rd mounting surface are provided with the filter oil-out；First mounting surface with
The valve platform joint face fits, and the filter oil inlet is corresponding with valve platform oil-out position, and the oil circuit cover plate can
That dismantles is installed on second mounting surface, and the 3rd mounting surface fits with the mounting surface of the plate type hydraulic valve, and
And the filter oil-out is corresponding with plate type hydraulic valve oil inlet position.
The beneficial effect of above-mentioned further technical scheme is, by the first mounting surface and the 3rd mounting surface, will can filter
Body is conveniently mounted between hydraulic valve platform and plate type hydraulic valve, and sets mounting surface due to special, is easy to implement sealing,
Medium is avoided to reveal；By the second mounting surface, oil circuit cover plate can be facilitated to be installed and dismantled with the filter body, while
Gateway on filter core chamber is located at the second mounting surface, filter core is changed by can causing to pull down after oil circuit cover plate, entirely
Device structure is reasonable in design, easy for installation, small volume, changes filter core easy.
Further, the oil circuit cover plate has cover plate mounting surface, and the cover plate mounting surface is fitted with second mounting surface,
The cover plate mounting surface is provided with cover plate oil inlet and cover plate oil-out, and the cover plate oil inlet and the cover plate oil-out pass through
Cover plate oil circuit inside the oil circuit cover plate is connected, and the cover plate oil inlet is located at the gateway in the filter core chamber,
And connected with the filter core chamber, the cover plate oil-out is corresponding with hydraulic fluid port position after the filter.
The beneficial effect of above-mentioned further technical scheme is, by the cover plate oil inlet on oil circuit cover plate, cover plate oil-out
And by both connect cover plate oil circuit, while cover plate oil inlet be located at the filter core chamber the gateway at, and with it is described
Filter core chamber connects, and the cover plate oil-out is corresponding with hydraulic fluid port position after the filter, thus can will enter the medium in filter core chamber
After through filter element filtering, after the filter on cover plate oil inlet, cover plate oil circuit, the second mounting surface of cover plate oil-out feeding filter body
Hydraulic fluid port, and filter after hydraulic fluid port be connected with the filter oil-out on the 3rd mounting surface, so finally can by filtering after it is clean
Medium is discharged from filter oil-out, realizes filtering.
Further, the mounting surface of the oil circuit cover plate is provided with the projection being adapted with one end of the filter core, described convex
The core that can be inserted into the filter core is acted, the cover plate oil inlet is located at the raised end.
The beneficial effect of above-mentioned further technical scheme is, by the projection on oil circuit cover plate, in that context it may be convenient to realize filter
The installation of core and dismounting, and the sealing between filter core and projection is may insure, to ensure good filter effect, meanwhile, by
In the core of projection insertion filter core, the medium after filtering effectively can be incorporated into filter oil-out.
Further, it is provided between the oil circuit cover plate and the filter body and/or between described raised and described filter core
Sealing ring.
The beneficial effect of above-mentioned further technical scheme is to be provided with sealing between the oil circuit cover plate and the filter body
Circle, it can be ensured that medium will not be revealed between oil circuit cover plate and filter body, be provided with close between the described raised and filter core
Seal, can avoid the faying face not by the medium of filtering between filter core and projection from penetrating into the core of filter core, can make
Obtain purer from the medium of filter oil-out discharge, filter effect is more preferable.
Further, one or more working oil passages and drainback passage are provided with the filter body, each described work
Two hydraulic fluid ports of oily passage respectively on first mounting surface and the 3rd mounting surface, two hydraulic fluid ports of the drainback passage
Also respectively on first mounting surface and the 3rd mounting surface, the hydraulic fluid port position of the working oil passage is logical with the oil return
The hydraulic fluid port position in road is corresponding with the corresponding hydraulic fluid port position of the hydraulic valve platform and the plate type hydraulic valve.
The beneficial effect of above-mentioned further technical scheme is, can by the superposing type filter be directly mounted at valve platform and
Between plate type hydraulic valve, make whole hydraulic system structure compact, it is easy for installation, it is not necessary to increase extra pipeline, practicality and
Convenience is greatly improved.
Further, first mounting surface is parallel to each other with the 3rd mounting surface, the working oil passage and described time
Oily passage is the clear opening through the filter body.
The beneficial effect of above-mentioned further technical scheme is, by the first mounting surface and the 3rd mounting surface that are parallel to each other,
Whole structure is more regular after this superposing type filter can be caused to easily facilitate installation, and installation, rationally distributed, meanwhile,
Also easily, cost is relatively low for processing and manufacturing.
Further, the multiple installation through-holes through the filter body are offered on the filter body, the installation is led to
The port in hole is located on first mounting surface and the 3rd mounting surface respectively, by the installation through-hole, by the filter body
It is fixed together with the hydraulic valve platform and the plate type hydraulic valve.
The beneficial effect of above-mentioned further technical scheme is, by installation through-hole, can with bolt or screw directly through,
To realize with the hydraulic valve platform and the plate type hydraulic valve being directly fixed together the filter body, dismantle, pacify
Dress is convenient and swift, and reliability is high.
Further, detection medium is also equipped with the filter body by the differential pressure signaling of the pressure difference value before and after filtering
Device, the first pressure tap of the differential pressure transmitter device is connected with the main oil gallery, and the second pressure tap connects with the filter oil-out
It is logical, the sender alarm when pressure difference value exceedes preset value.
The beneficial effect of above-mentioned further technical scheme is, by differential pressure transmitter device, meanwhile, the of the differential pressure transmitter device
One pressure tap is connected with the main oil gallery, and the second pressure tap is connected with the filter oil-out, can so detect medium mistake
Pressure difference value before and after filter, if pressure difference value is more than setting value, you can send alarm, representing the filter effect of filter core has expired
Foot is not required, it is necessary to change filter core, operating personnel can be changed according to warning.
Further, the superposing type filter also includes that plug is stifled, the stifled part being installed in the filter body of plug
The structure snd size part-structure and size that are installed on differential pressure transmitter device in the filter body it is identical.
The beneficial effect of above-mentioned further technical scheme is, when not needing differential pressure transmitter device function or need reduces cost
When, filter body only can be installed on plug is stifled, only realize plugging action.Blocked up with plug or differential pressure transmitter device can be with user
Two kinds of different demands, it is also possible to implement respectively as two kinds of product modes of superposing type filter provided by the present invention.
Brief description of the drawings
Fig. 1 is a kind of schematic elevation view of the specific embodiment of superposing type filter provided by the present invention；
Fig. 2 is the left view of schematic diagram shown in Fig. 1；
Fig. 3 is the B-B direction schematic cross-sectional view along Fig. 2；
Fig. 4 be along Fig. 1 A-A to schematic cross-sectional view；
Fig. 5 is the schematic top view of the filter body；
Fig. 6 is the rearview of schematic diagram shown in Fig. 1；
Fig. 7 is the schematic elevation view of another specific embodiment；
Fig. 8 is the cross-sectional view of specific embodiment shown in Fig. 7.
Wherein：1st, filter body, 2, oil circuit cover plate, 3, filter core, 4, plug it is stifled, 5, differential pressure transmitter device, 7, filter core chamber, 8, convex
Rise, 9, cover plate oil inlet, 10, cover plate oil-out, 11, filter oil inlet, 12, working oil passage, 13, drainback passage, 14, peace
Dress through hole, 15, sealing ring, 16, hydraulic fluid port after filter, 17, cover plate oil circuit, 18, filter oil-out, 19, main oil gallery, 20, oil through,
21st, the first pressure tap, the 22, second pressure tap, the 101, first mounting surface, the 102, second mounting surface, the 103, the 3rd mounting surface.
Specific embodiment
In order that those skilled in the art more fully understand the present invention program, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
Refer to Fig. 1 to Fig. 8, Fig. 1 be a kind of specific embodiment of superposing type filter provided by the present invention just
Depending on schematic diagram；Fig. 2 is the left view of schematic diagram shown in Fig. 1；Fig. 3 is the B-B direction schematic cross-sectional view along Fig. 2；Fig. 4 is along Fig. 1
A-A is to schematic cross-sectional view；Fig. 5 is the schematic top view of the filter body；Fig. 6 is the rearview of schematic diagram shown in Fig. 1；Fig. 7
It is the schematic elevation view of another specific embodiment；Fig. 8 is the cross-sectional view of specific embodiment shown in Fig. 7.
In a kind of specific embodiment of superposing type filter provided by the present invention, including filter body 1, oil circuit lid
Plate 2 and filter core 3；The filter body 1 is installed between valve platform and plate type hydraulic valve, and the oil circuit cover plate 2 is removably installed
In on the filter body 1, the filter body 1 is provided with filter core chamber 7, and the filter core 3 is placed in the filter core chamber 7, the mistake
A main oil gallery 19 is provided with inside filter body 1, the main oil gallery 19 is connected with the filter core chamber 7, the medium of main oil gallery 19 will be entered
Introduce the outside of filter core 3 in filter core chamber 7；The one side of the filter body 1 offers filter oil inlet 11, and another side is provided with
Filter oil-out 18, the filter oil inlet 11 is connected with the main oil gallery 19, and the filter oil-out 18 passes through institute
The oil circuit stated in oil circuit cover plate 2 is connected with the filter core chamber 7；After medium enters from the filter oil inlet 11, by described
Main oil gallery 19 enters the filter core chamber 7, then by after the filtering of the filter core 3, being flowed to by the oil circuit of the oil circuit cover plate 2
The filter oil-out 18 is simultaneously discharged the medium after filtering by the filter oil-out 18.
In order to easy for installation, the filter body 1 has the first mounting surface 101, the second mounting surface 102 and the 3rd mounting surface
103, offer the filter oil inlet 11 on first mounting surface 101, second mounting surface 102 be provided with it is described
The gateway in hydraulic fluid port 16 and the filter core chamber 7 after the filter of the connection of filter oil-out 18, the 3rd mounting surface 103 is provided with institute
State filter oil-out 18；First mounting surface 101 fits with the valve platform joint face, and the filter oil inlet
11 is corresponding with valve platform oil-out position, and the oil circuit cover plate 2 is mounted on second mounting surface 102, and described
Three mounting surfaces 103 fit with the mounting surface of the plate type hydraulic valve, and the filter oil-out 18 and plate type hydraulic valve
Oil inlet position correspondence.
The oil circuit cover plate 2 has cover plate mounting surface, and the cover plate mounting surface is fitted with second mounting surface 102,
I.e. oil circuit cover plate 2 overlays the upper surface of filter body 1, is anchored on filter body 1 with bolt or screw.The cover plate peace
Dress face is provided with cover plate oil inlet 9 and cover plate oil-out 10, and the cover plate oil inlet 9 and the cover plate oil-out 10 are by described
Cover plate oil circuit 17 inside oil circuit cover plate 2 is connected, and the cover plate oil inlet 9 is located at the gateway in the filter core chamber 7,
And connected with the filter core chamber 7, the cover plate oil-out 10 is corresponding with the position of hydraulic fluid port 16 after the filter.Cover plate oil circuit 17 is from oil
The fabrication hole of the end face processing of road cover plate 2, cover plate oil inlet 9 and cover plate oil-out 10 are respectively communicated with the difference in the fabrication hole
Depth, fabrication hole is blocked with screw plug.
In order to install filter core 3, it is ensured that stability when filter core 3 is filtered, and it is readily disassembled, the peace of the oil circuit cover plate 2
Dress face is provided with the core that raised 8, described raised 8 be adapted with one end of the filter core 3 can be inserted into the filter core 3, described
Cover plate oil inlet 9 is located at raised 8 end.Described raised 8 can be designed according to the hole size of filter core 3, will be convex
The center of 8 insertion filter core 3 is played, in order to prevent filtering not thorough, sealing ring 15 is provided between described raised 8 and the filter core 3, in order to
Avoid that oil liquid leakage occurs between the filter body 1 of oil circuit cover plate 2, be provided with close between the oil circuit cover plate 2 and the filter body 1
Seal 15.
One or more working oil passages 12 and drainback passage 13 are provided with the filter body 1, it is generally the case that work
Oil duct is two, and two hydraulic fluid ports of each working oil passage 12 are respectively in first mounting surface 101 and the 3rd peace
On dress face 103, two hydraulic fluid ports of the drainback passage 13 are also respectively in first mounting surface 101 and the 3rd mounting surface
On 103, the hydraulic fluid port position of the working oil passage 12 and the hydraulic fluid port position of the drainback passage 13 and the hydraulic valve platform and institute
The corresponding hydraulic fluid port position for stating plate type hydraulic valve is corresponding.
Generally, filter body 1 may be designed as rectangular structure, namely first mounting surface 101 and described
Three mounting surfaces 103 are parallel to each other, and the working oil passage 12 and the drainback passage 13 are through the straight-through of the filter body 1
Hole.Can so cause that structure is more compact, installation is also convenient for.
The multiple installation through-holes 14 through the filter body 1, the installation through-hole 14 are offered on the filter body 1
Port respectively be located at the mounting surface 103 of first mounting surface 101 and the 3rd on, by the installation through-hole 14, by the mistake
Filter body 1 is fixed together with the hydraulic valve platform and the plate type hydraulic valve.
In order to allow users to detect whether the replacing filter core 3 at any time, detection is also equipped with the filter body 1 and is situated between
Matter is by the differential pressure transmitter device 5 of the pressure difference value before and after filtering, the first pressure tap 21 and the main oil gallery of the differential pressure transmitter device 5
19 connections, are provided with the oil through 20 for connecting both between the second pressure tap 22 and the filter oil-out 18, during work, when
Sender alarm when pressure difference value exceedes preset value.I.e. prompting filter core needs to change.
Superposing type filter provided by the present invention, for reduces cost, it is also possible to without installing differential pressure transmitter device 5, and
It is that, to fill in stifled 4 substitution, the structure snd size of stifled 4 parts being installed in the filter body 1 of the plug are pacified with differential pressure transmitter device 5
It is identical with size loaded on the part-structure in the filter body 1.User can be so facilitated to be installed on demand, it is full
Various demands of sufficient user.When needing alarm, can select that differential pressure transmitter device 5 is installed, it is not necessary to when, it was installed to filling in stifled 4
Replace differential pressure transmitter device 5 on filter body.
Operation principle of the invention is that system hydraulic medium enters main oil from the oil-out of valve platform through filter oil inlet 11
Road 19, flows into the filter core chamber 7 of superposing type filter, and medium is after the filtering of filter core 3 through the cover plate oil inlet 9, cover plate of oil circuit cover plate 2
Oil circuit 17, cover plate oil-out 10, into the filter of filter body 1 corresponding with the position of cover plate oil-out 10 after hydraulic fluid port 16, entered
Filter body oil-out 18, you can flow into the hydraulic valve oil inlet connected with filter body oil-out 18, cleaning is provided to hydraulic valve
Fluid, other hydraulic fluid ports of hydraulic valve are corresponding to valve platform by the through type working oil passage 12 and drainback passage 13 of filter body 1
Hydraulic fluid port is directly connected.
A kind of superposing type filter provided by the present invention is described in detail above.It is used herein specifically individual
Example is set forth to principle of the invention and implementation method, and the explanation of above example is only intended to help and understands of the invention
Method and its core concept.It should be pointed out that for those skilled in the art, not departing from the principle of the invention
On the premise of, some improvement and modification can also be carried out to the present invention, these are improved and modification also falls into the claims in the present invention
Protection domain in.
Claims (10)
1. a kind of superposing type filter, it is characterised in that including filter body, oil circuit cover plate and filter core；
The filter body is installed between valve platform and plate type hydraulic valve, and the oil circuit cover plate is mounted at the filtering
On body, the filter body is provided with filter core chamber, and the filter core is placed in the filter core chamber, and one is provided with inside the filter body
Main oil gallery, the main oil gallery is connected with the filter core chamber, will enter the filter core outside that the medium of main oil gallery is introduced in filter core chamber；
The filter body one side offers filter oil inlet, and another side is provided with filter oil-out, the filter
Oil inlet is connected with the main oil gallery, and the filter oil-out is connected by the oil circuit in the oil circuit cover plate with the filter core chamber
It is logical；
Medium enters the filter core chamber from after filter oil inlet entrance by the main oil gallery, then by the filter core
After filtering, the filter oil-out is flowed to by the oil circuit of the oil circuit cover plate and was incited somebody to action by the filter oil-out
Medium discharge after filter.
2. a kind of superposing type filter according to claim 1, it is characterised in that the filter body has first to install
Face, the second mounting surface and the 3rd mounting surface, offer the filter oil inlet on first mounting surface, described second installs
Face is provided with the gateway in hydraulic fluid port and the filter core chamber after the filter connected with the filter oil-out, on the 3rd mounting surface
It is provided with the filter oil-out；
First mounting surface fits with the valve platform joint face, and the filter oil inlet and valve platform oil-out position
Correspondence, the oil circuit cover plate is mounted on second mounting surface, the 3rd mounting surface and the plate type hydraulic
The mounting surface of valve fits, and the filter oil-out is corresponding with plate type hydraulic valve oil inlet position.
3. a kind of superposing type filter according to claim 2, it is characterised in that there is the oil circuit cover plate cover plate to install
Face, the cover plate mounting surface is fitted with second mounting surface, and the cover plate mounting surface is provided with cover plate oil inlet and cover plate goes out
Hydraulic fluid port, the cover plate oil inlet and the cover plate oil-out are connected by the cover plate oil circuit inside the oil circuit cover plate, described
Cover plate oil inlet is located at the gateway in the filter core chamber, and is connected with the filter core chamber, the cover plate oil-out and institute
State hydraulic fluid port position correspondence after filter.
4. a kind of superposing type filter according to claim 3, it is characterised in that set on the mounting surface of the oil circuit cover plate
There is the projection being adapted with one end of the filter core, the raised core that can be inserted into the filter core, the cover plate oil inlet sets
In the raised end.
5. a kind of superposing type filter according to claim 4, it is characterised in that the oil circuit cover plate and the filter
Sealing ring is provided between body and/or between described raised and described filter core.
6. a kind of superposing type filter according to claim 2, it is characterised in that be provided with the filter body one or
Multiple working oil passages and drainback passage, two hydraulic fluid ports of each working oil passage are respectively in first mounting surface and institute
State on the 3rd mounting surface, two hydraulic fluid ports of the drainback passage are also respectively in first mounting surface and the 3rd mounting surface
On, the hydraulic fluid port position of the working oil passage and the hydraulic fluid port position of the drainback passage and the hydraulic valve platform and the board-like liquid
The corresponding hydraulic fluid port position of pressure valve is corresponding.
7. a kind of superposing type filter according to claim 6, it is characterised in that first mounting surface and the described 3rd
Mounting surface is parallel to each other, and the working oil passage and the drainback passage are the clear opening through the filter body.
8. a kind of superposing type filter according to claim 7, it is characterised in that offered on the filter body and run through
Multiple installation through-holes of the filter body, the port of the installation through-hole is located at first mounting surface and the 3rd and installs respectively
On face, by the installation through-hole, the filter body is fixedly connected on the hydraulic valve platform and the plate type hydraulic valve
Together.
9. a kind of superposing type filter according to any one of claim 1 to 8, it is characterised in that on the filter body
Detection medium is also equipped with by the differential pressure transmitter device of the pressure difference value before and after filtering, the first pressure tap of the differential pressure transmitter device with
The main oil gallery connection, the second pressure tap is connected with the filter oil-out, the sender report when pressure difference value exceedes preset value
It is alert.
10. a kind of superposing type filter according to claim 9, it is characterised in that the superposing type filter also includes
Plug is stifled, and the structure snd size of the stifled part being installed in the filter body of plug are installed on the filtering with differential pressure transmitter device
Part-structure in body is identical with size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710229506.3A CN106801693B (en) | 2017-04-10 | 2017-04-10 | A kind of superposing type filter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710229506.3A CN106801693B (en) | 2017-04-10 | 2017-04-10 | A kind of superposing type filter |
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| CN106801693A true CN106801693A (en) | 2017-06-06 |
| CN106801693B CN106801693B (en) | 2018-05-29 |
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| CN201710229506.3A Expired - Fee Related CN106801693B (en) | 2017-04-10 | 2017-04-10 | A kind of superposing type filter |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109200660A (en) * | 2018-11-16 | 2019-01-15 | 美钻深海能源科技研发（上海）有限公司 | A kind of underwater SCM redundant filtration device |
| CN110484373A (en) * | 2019-09-23 | 2019-11-22 | 黄山天目薄荷药业有限公司 | A kind of peppermint oil dehydration treatment equipment |
| CN114033774A (en) * | 2021-12-01 | 2022-02-11 | 通用技术集团机床工程研究院有限公司 | Plate type stacked filter |
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| CN2851680Y (en) * | 2005-11-19 | 2006-12-27 | 常熟市常福电力机具有限公司 | Hydraulic oil filtering device for hydraulic pumping station |
| CN203348231U (en) * | 2013-06-08 | 2013-12-18 | 淮南市国力液压机械制造有限公司 | Net type oil filter |
| CN204314134U (en) * | 2014-11-20 | 2015-05-06 | 上海科星电液控制设备有限公司 | A kind of superposing type filtrator for electric furnace creep testing machine |
| CN205298156U (en) * | 2016-01-20 | 2016-06-08 | 鞍山市力盛液压机械有限公司 | Stack formula filter for hydraulic system |
| CN105840588A (en) * | 2016-04-28 | 2016-08-10 | 江苏永钢集团有限公司 | Hydraulic tube oil filter device |
Cited By (3)
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| CN109200660A (en) * | 2018-11-16 | 2019-01-15 | 美钻深海能源科技研发（上海）有限公司 | A kind of underwater SCM redundant filtration device |
| CN110484373A (en) * | 2019-09-23 | 2019-11-22 | 黄山天目薄荷药业有限公司 | A kind of peppermint oil dehydration treatment equipment |
| CN114033774A (en) * | 2021-12-01 | 2022-02-11 | 通用技术集团机床工程研究院有限公司 | Plate type stacked filter |
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