CN104190133A - High-strength high-performance filter element - Google Patents
High-strength high-performance filter element Download PDFInfo
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- CN104190133A CN104190133A CN201410406811.1A CN201410406811A CN104190133A CN 104190133 A CN104190133 A CN 104190133A CN 201410406811 A CN201410406811 A CN 201410406811A CN 104190133 A CN104190133 A CN 104190133A
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- filter
- end cover
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- filter core
- central tube
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Abstract
The invention belongs to the technical field of filter devices and discloses a high-strength high-performance filter element. The high-strength high-performance filter element comprises upper end covers, lower end covers, a central pipe and a filter cartridge arranged at the periphery of the central pipe; the upper end covers and the lower end covers are arranged on the upper and lower ends of the filter cartridge and the center pipe respectively; the filter cartridge comprises a waved filter layer and waved metal nets which are arranged on the inner and outer sides of the waved filter layer; the filter layer is formed by orderly stacking a glass fiber felt layer, a glass fiber filter paper layer and a non-woven cloth layer; the non-woven cloth layer is close to the central pipe; the body of the central pipe is formed by narrow steel strips which are spirally coiled in a staggered manner, wherein the narrow steel strip of the upper layer is fixedly connected with the narrow steel strip of the lower layer, and a squeezing hole is formed in the length direction of the narrow strips. The high-strength high-performance filter element is reasonable in design and simple in structure; the filter element has high strength and safety, and therefore, the filtering fineness of a filter is guaranteed, and moreover, the filtering efficiency of the filter is well improved and the service life of the filter is prolonged.
Description
Technical field
The invention belongs to the technical field of filter, be specifically related to a kind of high-strength high-performance filter core.
Background technology
Along with the development of hydraulic technique, people also more and more pay attention to the control of Oil Contamination in Hydraulic System.Cleaner is as the critical elements of controlling contamination level of oil liquid, and the application in hydraulic system is also more and more extensive.The core component of cleaner is filter core, is directly determined by filter core performance quality in the flow resistance of cleaner and service life.
Filter core damages the common following several situation that has:
1, expand: hydraulic filter has generally all specified oily flow path direction (being oil-in and oil-out), filter core can only bear the pressure of single direction, in the time that cleaner is anti-loaded into and out of hydraulic fluid port direction, filter core bears reverse pressure, and its reverse pressure-bearing ability is very low, easily make filter core expand, even spalling, loses filter effect.Meanwhile, in the time that the pressure of cleaner oil-out is excessive, in hydraulic system, there is fluid back attack phenomenon, also can cause filter core to expand.
2, flatten: filter core is as the element of actual filtration pollutant, and along with increasing of interception pollutant, the pressure drop that fluid produces by filter core increases, when filter core should be changed or clean to pressure drop greatly to a certain extent time in time, otherwise the pressure drop that filter core bears constantly increases, can make filter core be crushed.In addition, if system exists the phenomenon of the large flow attack of moment, as the quick relief of hydraulic cylinder, cause moment flow excessive, or cold start-up under system hypothermia, cause pressure drop moment to increase, all likely make filter core be crushed.
3, the damage of filter material: the effect of cleaner is that the microparticle in hydraulic system is filtered out, the source of these particles is mainly summed up as following four aspects: (1) fresh oil is unclean; (2) new life's pollutant in hydraulic system; (3) residual pollutant in hydraulic system; (4) environmental pollution.Filter core is as the element of actual filtration pollutant, and in use, the microparticle being deposited on filter paper constantly accumulates, and stops up filter opening, reduces filter efficiency; Along with increasing of interception pollutant, the pressure drop that fluid produces by filter core increases, after certain part of filter paper is crushed, microparticle in liquid will directly pass through this place, reduce the filtering accuracy of cleaner, and with hydraulic oil the mobile friction surface that is brought into kinematic pair in system, accelerate the wearing and tearing of part, reduce the service life of transmission system.
In addition, in existing technology, the filtering layer that plays filtration is filter paper, but filter paper is easily broken impaired in the process using, and filtering accuracy and efficiency are under some influence; The central tube intensity that plays supporting role is lower, and the permeability of liquid is not high.
Summary of the invention
In order to overcome the shortcoming and defect of prior art, the object of the present invention is to provide a kind of high-strength high-performance filter core, both ensured the filtering accuracy of cleaner, improve preferably again cleaner filter efficiency, service life performance.
Object of the present invention is achieved through the following technical solutions:
A kind of high-strength high-performance filter core, comprise upper end cover, bottom end cover, central tube and be arranged on the filter cylinder of central tube periphery, described upper end cover and bottom end cover are separately positioned on the two ends up and down of filter cylinder and central tube, and described filter cylinder comprises waveform filtering layer and waveform wire netting; The inside and outside both sides of described waveform filtering layer are provided with described waveform wire netting.
Described filtering layer is formed by stacking successively by glass fibre carpet veneer, glass fiber filter paper layer and nonwoven layer; Described nonwoven layer is near central tube.
The pipe shaft of described central tube is the narrow steel strip of dislocation coiled coil, and described upper strata narrow steel strip and lower floor's narrow steel strip are fixed, are provided with along its length extruded hole.
Described extruded hole is open column shape projection; On described cylinder, arrange porosely, communicate with columnar projections bottom, making extruded hole is through hole.
Described extruded hole is preferably hollow cuboid, has Huo Liangge opposite flank, 1 side formation through hole that communicates with bottom in four sides of described cuboid, and Si Ge angle, described cuboid top is fillet.
Described high-strength high-performance filter core, also comprises upper end cover accessory and sealing ring; Described sealing ring is arranged between described upper end cover accessory and upper end cover, and described upper end cover accessory is arranged on the upper end of described central tube and filter cylinder and gently excessively coordinates with upper end cover.
Described sealing ring is O RunddichtringO, and is processed by fluorine-containing rubber.
The upper and lower side of described central tube and cylinder is bonding with described upper end cover accessory, described bottom end cover respectively by adhesive; Described upper end cover and described upper end cover accessory are bonding by adhesive.
Described filter cylinder is after wire netting and filtering layer tiling stack, to be folded into waveform by paper folder, then by adhesive, the head and the tail bonding of waveform wire netting and filtering layer is formed.
The flange place fillet (r) of the upper end cover accessory of described filter core is less with upper end cover upper overturning place fillet (R), when combination, both gaps are less, put into after sealing ring (O RunddichtringO) compactlyer, play better sealing function.
Described upper end cover, upper end cover accessory, central tube, filter cylinder are coaxial with bottom end cover.
Compared with prior art, the present invention has following beneficial effect:
(1) central tube of described filter core is that spiral squeezes cellular type filter central pipe, and the pipe shaft of central tube is the narrow steel strip of dislocation coiled coil, and upper strata narrow steel strip and lower floor's narrow steel strip are affixed, and are provided with along its length extruded hole.Narrow steel strip dislocation helix-coil structure effectively raises the rigidity of central tube; By narrow steel strip helical coil, to the diameter needing, the length needing by the spiral cutter cutting of equipment, makes to process easy; Squash type through hole (extruded hole) has improved the trafficability characteristic of central tube intensity and circulation medium.Squash type through hole is subject to the residualinternal stress effect of elastic and plastic properties distortion own, there is the trend expanding outwardly, and fluid is to flow into from outside to inside, make it be subject to radially inside outside action of compressive stress, inside and outside portion active force is cancelled out each other, reduce the stressed of central tube, compare punching, it has improved central tube intensity; Squash type through hole two ends are mutually penetrating, and it has strengthened the trafficability performance of liquid.
(2) described filter cylinder is that the filter material cutting by certain size is laid between the black wire net of two-layer same size, it is the form of black wire net-filter material-black wire net, after completing, be folded into waveform through paper folder, be then prepared from by adhesive bonds head and the tail.Additive method, in the present invention is folded into filter material corrugated benefit and is: the filtration contact area that 1. increases hydraulic oil and filter material relatively; 2. increase the dirt content of filter core.In the present invention, adopt the form of black wire net-filter material-black wire net, facilitate on the one hand the folding and moulding of filter material on paper folder, make its not cracky; Can strengthen on the other hand the intensity of filter core.
(3) described filtering layer is to be formed by stacking by three layers of different filtering material tiling, and described filtering layer is made up of glass mat, glass fiber filter paper and nonwoven.Wherein glass fiber filter paper is main filter medium; The physical strength of glass fiber filter paper is low, fragility is large, and in the time that filter course is made in mechanical backfin, filter material is easily damaged.Glass mat is placed between wire netting and glass fiber filter paper, plays on the one hand the effect of protection filter paper, prevent that glass fiber filter paper from being rolled over brokenly or staved by upper strata wire netting net; On the other hand, glass mat tissue tight, hole is little, and on manufacturing, its thickness is unrestricted, can be used as good filtering material, and hydraulic oil is carried out to coarse filtration.Nonwoven is placed between glass fiber filter paper and wire netting, and nonwoven is the same with glass mat on the one hand, and glass fiber filter paper is shielded; Nonwoven has certain tensile strength and filtration on the other hand, after glass fiber filter paper is damaged, prevents the fluid filtered of oil-in, directly enters operation element.
(4) described O RunddichtringO is processed by fluorine-containing rubber, compares the acrylonitrile-butadiene rubber sealing ring that cleaner is conventional, and it can be applicable to worse working environment.
Therefore, the present invention is reasonable in design, simple in structure, and filter core has high intensity and security, has both ensured the filtering accuracy of cleaner, has improved preferably again the performances such as cleaner filter efficiency, service life.
Brief description of the drawings
Fig. 1 is the half sectional view of high-strength high-performance filter core involved in the present invention; Wherein 4-central tube, 5-filter cylinder, 6-bottom end cover;
Fig. 2 is the partial enlarged drawing at A place in Fig. 1; Wherein 1-upper end cover, 2-sealing ring, 3-upper end cover accessory, 51-filtering layer, 52-wire netting;
Fig. 3 is the local expansion view of the filter cylinder of high-strength high-performance filter core involved in the present invention; The cutaway view that Fig. 3 (a) is described filter cylinder, Fig. 3 (b) is described filter cylinder local expansion view, wherein 511-glass fibre carpet veneer, 512-glass fiber filter paper layer, 513-nonwoven layer, 521-wire netting, 522-wire netting;
Fig. 4 is that central tube and the part thereof of high-strength high-performance filter core involved in the present invention launched view; Wherein Fig. 4 (c) is described center tube structure schematic diagram, tube portion open cube display centered by Fig. 4 (d); Wherein, 41-narrow steel strip, 42-extruded hole.
Detailed description of the invention
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail.
As shown in Figure 1 to 4, a kind of high-strength high-performance filter core, comprise upper end cover (1), bottom end cover (6), central tube (4) and be arranged on the peripheral filter cylinder (5) of central tube (4), described upper end cover (1) and bottom end cover (6) are arranged on the two ends of filter cylinder (5) and central tube (4), and described filter cylinder (5) comprises waveform filtering layer (51) and waveform wire netting (52); Described waveform filtering layer (51) both sides are provided with described waveform wire netting (52);
Described filtering layer (51) is formed by stacking successively by glass fibre carpet veneer (511), glass fiber filter paper layer (512) and nonwoven layer (513); Described nonwoven layer (513) is near central tube (4); Described waveform wire netting (52) comprises waveform wire netting (521) and waveform wire netting (522); The pipe shaft of described central tube (4) is the narrow steel strip (41) of dislocation coiled coil, and described upper strata narrow steel strip and lower floor's narrow steel strip are fixed, are provided with along its length extruded hole (42).
Described extruded hole (42) is open column shape projection, arranges porosely on described cylinder, and on cylinder, hole and columnar projections bottom is communicated with, and making extruded hole is through hole.
Described extruded hole (42) is hollow cuboid, has Huo Liangge opposite flank, 1 side formation through hole that communicates with bottom in four sides of described cuboid, and Si Ge angle, described cuboid top is fillet.
Described high-strength high-performance filter core, also comprises upper end cover accessory (3) and sealing ring (2); Described sealing ring (2) is arranged between described upper end cover accessory (3) and upper end cover (1), and described upper end cover accessory (3) is arranged on the upper end of described central tube (4) and filter cylinder (5).
The upper and lower side of described central tube (4) and filter cylinder (5) is bonding with described upper end cover accessory (3), described bottom end cover (6) respectively by adhesive; Described upper end cover (1) is bonding by adhesive with described upper end cover accessory (3).
Described sealing ring (2) is O RunddichtringO, is processed by fluorine-containing rubber.Upper end cover (1), upper end cover accessory (3) are the same with the thickness of slab of bottom end cover (6), and upper end cover (1), upper end cover accessory (3), central tube (4), bottom end cover (6) are coaxial with filter cylinder (5).
The flange place fillet (r) of described upper end cover accessory (3) is less with upper end cover (1) upper overturning place fillet (R), when combination, both gaps are less, put into after sealing ring (O RunddichtringO) (2) compactlyer, play better sealing function.
The central tube of filter core is that spiral squeezes cellular type filter central pipe.Narrow steel strip is spun into the pipe shaft of dislocation coiled coil under the effect of full automatic screw formula central tube furling plate round machine, and upper strata narrow steel strip and lower floor's narrow steel strip are affixed, and are provided with along its length extruded hole.And the diameter that narrow steel strip helical coil is extremely needed, the length needing by the spiral cutter cutting of equipment, makes to process easy.
The preparation of filter cylinder: the filter material cutting by certain size (filtering layer) is laid between the black wire net (wire netting) of two-layer same size, it is the form of black wire net-filter material-black wire net, after clamping, under the effect of layboy, be folded into waveform.Be specially first and according to the order of black wire net-filter material-black wire net, material be layered on paper folder plate, wherein filter material (filtering layer) is to be formed by stacking by three layers of different filtering material tiling, and overlay order is followed successively by glass mat, glass fiber filter paper and nonwoven; Next is folded into waveform through paper folder after setting up good certain broken number and rolling over deeply; Again filtering layer and metal net layer are cut into fixing broken number, finally use epoxide resin AB glue by glued together the head and the tail of filtering layer and metal net layer, form waveform filter cylinder.
Above embodiment is the preferred embodiment of the present invention, under the premise without departing from the principles of the invention, makes improvements and retouches, and these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. a high-strength high-performance filter core, is characterized in that: comprise central tube and be arranged on the filtering layer of central tube periphery, described filtering layer is formed by stacking successively by glass fibre carpet veneer, glass fiber filter paper layer and nonwoven layer, and described nonwoven layer is near central tube.
2. high-strength high-performance filter core according to claim 1, is characterized in that: the pipe shaft of described central tube is the narrow steel strip of dislocation coiled coil, and described upper strata narrow steel strip and lower floor's narrow steel strip are fixed, are provided with along its length extruded hole.
3. high-strength high-performance filter core according to claim 2, is characterized in that: described extruded hole is open column shape projection; On described cylinder, arrange porosely, communicate with columnar projections bottom, making extruded hole is through hole.
4. high-strength high-performance filter core according to claim 1, is characterized in that: the inside and outside both sides of described filtering layer are provided with wire netting.
5. high-strength high-performance filter core according to claim 4, is characterized in that: described filtering layer and wire netting are waveform.
6. high-strength high-performance filter core according to claim 1, is characterized in that: also comprise upper end cover, bottom end cover, described upper end cover and bottom end cover are arranged on the two ends of filtering layer and central tube.
7. high-strength high-performance filter core according to claim 1, is characterized in that: also comprise upper end cover accessory and sealing ring; Described sealing ring is arranged between described upper end cover accessory and upper end cover, and described upper end cover accessory is arranged on the upper end of described central tube and filtering layer.
8. high-strength high-performance filter core according to claim 7, is characterized in that: described sealing ring adopts fluorine-containing rubber to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410406811.1A CN104190133A (en) | 2014-08-18 | 2014-08-18 | High-strength high-performance filter element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410406811.1A CN104190133A (en) | 2014-08-18 | 2014-08-18 | High-strength high-performance filter element |
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| Publication Number | Publication Date |
|---|---|
| CN104190133A true CN104190133A (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410406811.1A Pending CN104190133A (en) | 2014-08-18 | 2014-08-18 | High-strength high-performance filter element |
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| Country | Link |
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| CN (1) | CN104190133A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105396374A (en) * | 2015-11-18 | 2016-03-16 | 重庆市合川区九峰煤炭有限公司 | Coal-washing equipment cleaning solution filtering felt |
| CN105727623A (en) * | 2016-03-21 | 2016-07-06 | 西安天厚滤清技术有限责任公司 | Two-stage integrated composite filter element for oil product filtering |
| CN107596758A (en) * | 2017-10-20 | 2018-01-19 | 新乡市华航航空液压设备有限公司 | A kind of low circulating resistance filter cartridge construction |
| CN108295584A (en) * | 2018-04-17 | 2018-07-20 | 东莞市东田过滤技术有限公司 | A kind of filter core and its filter for exempting from metal material |
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| US6006924A (en) * | 1997-05-14 | 1999-12-28 | Pti Technologies, Inc. | Multi-media filtration system with reusable and demountable filter cartridge |
| CN2564224Y (en) * | 2002-08-21 | 2003-08-06 | 固安县中航油过滤器材有限公司 | Filtering element for filter |
| CN102811786A (en) * | 2010-03-04 | 2012-12-05 | Hydac过滤技术有限公司 | Filter and filter element provided therefor |
| CN103055585A (en) * | 2012-09-28 | 2013-04-24 | 天津润德滤清器有限公司 | Spiral punching-type filter central tube |
| CN203227353U (en) * | 2013-04-25 | 2013-10-09 | 中国人民解放军空军油料研究所 | Filtering and agglomerating filter core for fuel oil filtering and separating device |
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2014
- 2014-08-18 CN CN201410406811.1A patent/CN104190133A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6006924A (en) * | 1997-05-14 | 1999-12-28 | Pti Technologies, Inc. | Multi-media filtration system with reusable and demountable filter cartridge |
| CN2564224Y (en) * | 2002-08-21 | 2003-08-06 | 固安县中航油过滤器材有限公司 | Filtering element for filter |
| CN102811786A (en) * | 2010-03-04 | 2012-12-05 | Hydac过滤技术有限公司 | Filter and filter element provided therefor |
| CN103055585A (en) * | 2012-09-28 | 2013-04-24 | 天津润德滤清器有限公司 | Spiral punching-type filter central tube |
| CN203227353U (en) * | 2013-04-25 | 2013-10-09 | 中国人民解放军空军油料研究所 | Filtering and agglomerating filter core for fuel oil filtering and separating device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105396374A (en) * | 2015-11-18 | 2016-03-16 | 重庆市合川区九峰煤炭有限公司 | Coal-washing equipment cleaning solution filtering felt |
| CN105396374B (en) * | 2015-11-18 | 2017-04-26 | 重庆市合川区九峰煤炭有限公司 | Coal-washing equipment cleaning solution filtering felt |
| CN105727623A (en) * | 2016-03-21 | 2016-07-06 | 西安天厚滤清技术有限责任公司 | Two-stage integrated composite filter element for oil product filtering |
| CN107596758A (en) * | 2017-10-20 | 2018-01-19 | 新乡市华航航空液压设备有限公司 | A kind of low circulating resistance filter cartridge construction |
| CN108295584A (en) * | 2018-04-17 | 2018-07-20 | 东莞市东田过滤技术有限公司 | A kind of filter core and its filter for exempting from metal material |
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Application publication date: 20141210 |
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| RJ01 | Rejection of invention patent application after publication |