CN103191923B - A kind of Mill lubricating system oil-returning filtering device and filter method - Google Patents
A kind of Mill lubricating system oil-returning filtering device and filter method Download PDFInfo
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- CN103191923B CN103191923B CN201310084914.6A CN201310084914A CN103191923B CN 103191923 B CN103191923 B CN 103191923B CN 201310084914 A CN201310084914 A CN 201310084914A CN 103191923 B CN103191923 B CN 103191923B
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Abstract
The invention discloses a kind of Mill lubricating system oil-returning filtering device and filter method, this oil-returning filtering device, described backing roll lubricating system, comprises fuel tank, fuel tank is connected with flowline and oil return pipe; Described oil-returning filtering device, comprises the filter being located at oil return pipe outlet below in fuel tank; Described filter, comprises DPU disk pack unit, is set with metal filter screen outward at described DPU disk pack unit; Metal coating net is set with outward at described metal filter screen; This Mill lubricating system oil return filter method, utilizes Mill lubricating system oil-returning filtering device to realize; This Mill lubricating system oil-returning filtering device and filter method, in filter, DPU disk pack unit makes iron powder fully absorb when strengthening absorption affinity, non-magnetic particle, impurity can also can filter out by metal filter screen in time, ensure that the clean of fluid, extend oil product life cycle, extend backing roll service life.
Description
Technical field
The present invention relates to cold-rolling pickling tandem rolling mill supporting roller bearing lubricating system, be specifically related to a kind of Mill lubricating system oil-returning filtering device and filter method.
Background technology
In high-quality belt steel rolling technique, milling train be used as calendaring tool, its tinuous production often by online to pickling and milling train become combined production line.Modern acid milling train roll bearing generally adopts rolling bearing structure, and the supporting roller bearing lubrication of milling train adopts thin oil forced feed lubrication usually, and backing roll lubricating system is the exclusive lubricating utensil of back-up roll bearing.Wherein filter plays crucial effect in systems in which, and its filter effect can directly have influence on lubricant effect and system cloud gray model.The ruuning situation of Mill lubricating system not only can affect the life-span of backing roll and bearing thereof, even can affect the control of whole template.
Due to the impact of site environment in the operation of backing roll lubricating system, a large amount of moisture, dust, iron scale can enter the direct contaminated system fluid of system.Traditional filter is mainly made up of several groups of bar magnets in the middle part of fuel tank in lubricating system, and expose following shortcoming aborning: on the one hand, filter forms primarily of bar magnet, can only iron powder in adsorbing contaminant and water environment capacity is poor; Bar magnet magnetic force is limited and adsorption area is too little, causes the deironing ability of filter undesirable; The middle part being directly placed on fuel tank due to bar magnet is immersed in fluid, impurity along with fluid enter systemic circulation after just can touch bar magnet, filter effect is undesirable; On the other hand, the dismounting of filter and cleaning are comparatively complicated, and especially the cleaning of bar magnet can bring certain difficulty to execute-in-place workman.
Impurity enters lubricating system aborning, and the filter in using at present can not good impurity screening.This creates the terminal the problem that system Oil Quality declines, lubricant effect is not good, bearing wear is serious.Inventor regularly carries out detection to backing roll lubricating system oil product and analyzes, and every physical and chemical indexs such as system contamination level of oil liquid all exist some problems.Detect Quantitative ferrography analysis, emission spectrographic analysis according to oil product, the impurity main component entering system is iron and oarse-grained nonmetallic inclusion, and these impurity directly can affect lubricant effect.The improper deterioration of oil quality causes will carrying out system less than the cycle and changes oil, and after changing oil, oil product will be polluted again soon, and has the trend progressively worsened.On the other hand, the bulky grain nonmetallic inclusion system of entering often can cause the damage of the elements such as system fading margin valve, lubricating pump.
Summary of the invention
The object of the present invention is to provide a kind of good filtration effect, lubricating oil quality can be ensured, Mill high lubricating effect, effectively can improve Mill lubricating system oil-returning filtering device and the filter method in backing roll service life.
To achieve these goals, the technical solution used in the present invention is:
This Mill lubricating system oil-returning filtering device, described backing roll lubricating system, comprises fuel tank, fuel tank is connected with flowline and oil return pipe; Described oil-returning filtering device, is made up of the filter being located at oil return pipe outlet below in fuel tank; Described filter, comprises DPU disk pack unit, is set with metal filter screen outward at described DPU disk pack unit; Metal coating net is set with outward at described metal filter screen.
Described metal filter screen filtering accuracy is 100 ~ 120 orders.
Described filter is located in described fuel tank by filter mounting bracket, and described filter mounting bracket is provided with the installing hole for mounting filter, and described filter top end establishes top end cover; The top end cover that described filter is contained in installing hole after-filter is stuck in installing hole top; The top end cover of filter is provided with handle.
Described filter mounting bracket is connected in fuel tank by base, and described filter mounting bracket is connected with base by alignment pin.
Lapping plate is established at described DPU disk pack unit top, and described DPU disk pack unit is stuck in filter end by this lapping plate and covers.
Described DPU disk pack unit, is made up of disk connecting rod and the disk be sleeved on disk connecting rod.
Described filter be located at below oil return pipe with top of oil-tank distance be 550mm place.
Described oil return pipe exit end face is horizontal by 45 ° of angles; And aperture is provided with on described oil return pipe outlet end tube wall.
Set cross section as the spout hole of rectangle at described tank drainback chamber wall; Oil return pipe is provided with fluid thief hole.
This Mill lubricating system oil return filter method, utilizes Mill lubricating system oil-returning filtering device to realize; After the complete Mill of oil lubrication, enter filter by oil return pipe outlet outflow; After the DPU disk pack unit single filter of filter, then through the metal filter screen cascade filtration of filter, then flowed out by metal coating net and enter fuel tank, complete filtration.
The invention has the advantages that:
First, this Mill lubricating system oil-returning filtering device and filter method, in filter, DPU disk pack unit makes iron powder fully absorb when strengthening absorption affinity, and non-magnetic particle, impurity can also can filter out by metal filter screen in time; Good filtration effect, can ensure lubricating oil quality, Mill high lubricating effect, effectively can improve backing roll service life.
Secondly, this this Mill lubricating system oil-returning filtering device and filter method, by changing the end circuit of lubricating loop, enter fuel tank Inner eycle again after making the oil stream in return line and the abundant contact filtration of filter to use, can greatly improve filter effect, ensure Oil Quality further.
Again, filter is located in fuel tank by removable filter device mounting bracket, and clean and replacing filter becomes simple and convenient, ensures oil filtrating effect further.
Finally, DPU disk pack unit adopts with filter the syndeton be conveniently separated, and DPU disk pack unit can clean separately, ensure that the serviceability of filter, further ensures filter effect.
Accompanying drawing explanation
Mark in the content expressed each width accompanying drawing of description of the present invention below and figure is briefly described:
Fig. 1 is the scheme of installation of Mill lubricating system oil-returning filtering device of the present invention;
Fig. 2 is the top view of Fig. 1 Mill lubricating system oil-returning filtering device;
Fig. 3 is the structural representation of filter mounting bracket;
Fig. 4 is the structural representation of filter;
Fig. 5 is the top view of Fig. 4 filter;
The structural representation of Fig. 6 to be Fig. 4 be DPU disk pack unit in filter;
Mark in above-mentioned figure is:
1, fuel tank, 2, oil return pipe, 3, filter, 4, DPU disk pack unit, 5, metal filter screen, 6, metal coating net, 7, filter mounting bracket, 8, installing hole, 9, handle, 10, lapping plate, 11, DPU disk pack unit installing hole, 12, disk, 13, disk connecting rod.
Detailed description of the invention
Contrast accompanying drawing below, by the description to optimum embodiment, the specific embodiment of the present invention is described in further detail.
As shown in Figures 1 and 2, this Mill lubricating system oil-returning filtering device, this backing roll lubricating system, comprises fuel tank 1, fuel tank 1 is connected with flowline and oil return pipe 2; This oil-returning filtering device, be made up of the filter 3 being located at oil return pipe 2 in fuel tank 1 and exporting below, filter 3 just exports oil return pipe 2, and the lubricating oil flowed out from oil return pipe 2 enters fuel tank 1 again and recycles after filter 3 filters, and effectively can strengthen filter effect; As shown in Figures 4 and 5; filter 3, the metal coating net 6 be out of shape from Oil shocking by the DPU disk pack unit 4 of ferro element in absorption fluid, the metal filter screen 5 being sleeved on the bulky grain nonmetallic inclusion that cannot adsorb for adsorption magnet of DPU disk pack unit 4 outside and the protection metal filter screen 5 that is sleeved on metal filter screen 5 outside is formed.
Detect Quantitative ferrography analysis, emission spectrographic analysis according to oil product, the impurity main component entering system is iron and oarse-grained dust.In order to remove these impurity spy, filter 3 is designed to three layers: DPU disk pack unit 4 is as the middle ground floor structure of filter 3, and for adsorbing the ferro element in fluid, the concrete number of DPU disk pack unit 4, according to work requirements, optionally can adjust, and usually chooses 4; Metal filter screen 5 as filter 3 second layer structure, the mainly adsorption magnet bulky grain nonmetallic inclusion that cannot adsorb, metal filter screen 5 filtering accuracy is 100 ~ 120 orders, and metal filter screen 5 has very strong water environment capacity; Metal coating net 6 is as the outside third layer structure of filter 3, and be large aperture network structure, the metal filter screen 5 mainly for the protection of the second layer is out of shape from Oil shocking; The lubricating oil flowed out from oil return pipe 2 is after filter 3 filters, then flow back in fuel tank 1, Oil Quality can be guaranteed, Mill high lubricating effect, and effectively can extend the service life of backing roll.
Filter 3 is located in fuel tank 1 by filter mounting bracket 7, and as shown in Figure 3, filter mounting bracket 7 is provided with the installing hole 8 for mounting filter 3, top end cover is established on filter 3 top; The top end cover that filter 3 is contained in installing hole 8 after-filter 3 is stuck in installing hole 8 top; As shown in Figure 4, be provided with handle 9 in the top end cover of filter 3, handle 9 is metal semicircular ring structure; On the basis considering filter mounting bracket 7 bearing strength, in order to filter 3 can be stable when system cloud gray model be fixed on filter mounting bracket 7 and can easily take out cleaning again simultaneously, special filter 3 is designed to basket structure; When needing cleaning, worker stands proposes filter 3 at fuel tank 1 top by handle 9, and filter 3 is cleared up convenient, can ensure the filter effect of filter 3.In the production practices of Ma Gang, filter 3 is designed to column structure, and filter 3 top end cover diameter is 400mm, and installing hole 8 diameter is 350mm.
Conveniently when cleaning fuel tank 1, filter mounting bracket 7 is shifted out fuel tank 1 from case lid, filter mounting bracket 7 is designed to the steel plate of one piece of thick 960mm*950mm of 10mm; Filter mounting bracket 7 is travel(l)ing rest, and filter mounting bracket 7 is connected in fuel tank 1 by base.Base is fixed support, and for ensureing the reliability of base, base designs is the steel plate of two pieces of thick 950mm*720mm of 10mm, is first welded the fixed position that encloses with angle steel, then Plate Welding is formed base on angle steel.Filter mounting bracket 7 is connected with the base at two ends by alignment pin.The link position of base and filter mounting bracket 7 and the position of filter 3 are determined to interfere after calculating, and filter 3 can take out easily from filter mounting bracket 7.
The impurity adsorbed because of DPU disk pack unit 4 is usually more, need to DPU disk pack unit 4 periodic cleaning, and the cleaning frequency of DPU disk pack unit 4 wants high relatively, clears up separately in order to it can easily take off DPU disk pack unit 4 from filter 3.As shown in Figure 4, DPU disk pack unit 4 top establishes in lapping plate 10, Fig. 4 the lapping plate 10 of the DPU disk pack unit 4 only drawing one of them to carry out example; Lapping plate 10 for length and width be the bonding jumper of 120mm*30mm; DPU disk pack unit 4 is stuck on filter 3 end cap by this lapping plate 10; Filter 3 top end cover is provided with DPU disk pack unit installing hole 11, and the diameter in filter 3 top end cover that is overlapped on that can be stable when DPU disk pack unit 4 is installed is on the DPU disk pack unit installing hole 11 of 90mm; So just can not need to take out whole filter 3 and just DPU disk pack unit 4 can easily be taken out cleaning.
As shown in Figure 6, DPU disk pack unit 4, is made up of disk connecting rod 13 and the disk 12 be located on disk connecting rod 13; Disk 12 is open circles plate-like, and disk 12 is sleeved on disk connecting rod 13; Be located at disk 12 number on disk connecting rod 13, according to real work needs, visual concrete condition adjustment, on preferred DPU disk pack unit 4, disk 12 number is five; Prevent the interference of attracting each other between disk 12 and disk connecting rod 13 in order to fixed disk 12, disk connecting rod 13 is made up of plastic material rod member; Disk 12 is so not only facilitated to take out from disk connecting rod 13, replacing convenient for cleaning, and the weight that can alleviate whole filter.
In order to place as far as possible many disks 12 in limited space, spy designs four DPU disk pack units 4 respectively in each filter 3, and each DPU disk pack unit 4 is provided with five disks 12.Whole filtration system has just installed 80 ferromagnetism disks 12 altogether, which enhances the deironing ability of whole filter.Disk 12 diameter of magnetic and the visual concrete condition adjustment of thickness, preferred disk 12 surface diameter is 80mm thickness is 20mm.
Calculate oil return resistance according to flow system flow, finally determining that filter 3 to be located at below oil return pipe 2 with fuel tank 1 distance from top is 550mm place; During in order to reduce lubricating oil return, oil return impact and bubble produce, and oil return pipe 2 exit end face is horizontal by 45 ° of angles; And being provided with aperture at oil return pipe 2 outlet end tube wall surface, the visual concrete condition adjustment of little number of perforations, the diameter of aperture is 5mm.
In order to ensure system oil return security, establish spout hole at fuel tank 1 oil back chamber wall, preferred spout hole is two, the preferred rectangle of spout hole cross sectional shape.
Conveniently the sampling of fluid detects, and oil return pipe 2 is set up fluid thief hole.
In order to not destroy casing original structure, and filter 3 can be taken out from case lid easily, filter 3 position is determined to be less than on the area of case lid under case lid.
In order to placement filter 3 as much as possible on effective area, special its Filter 3 is designed to 4 sizes is diameter is the column structure of 350mm.
This Mill lubricating system oil return filter method, uses this Mill lubricating system oil-returning filtering device to realize, after the complete Mill of oil lubrication, exports outflow enter filter 3 by oil return pipe 2; After DPU disk pack unit 4 single filter of filter 3, then through metal filter screen 5 cascade filtration of filter 3, then flowed out by metal coating net 6 and enter fuel tank, complete filtration.
This Mill lubricating system oil-returning filtering device and filter method, bring following implementation result:
Filtration system normal operation after new filter comes into operation.In order to ensure the accuracy that implementation result checks, applicant has entrusted professional oil product testing agency to detect system filter effect, detects data reaction system filter effect good.After new filter puts into operation, system fluid is clean brings up to NAS11 level, is much higher than the requirement of lubricating system cleaning requirements.From filter effect, the ability that system major impurity Fe removed by new filter is comparatively strong, and in system, Fe constituent content have dropped nearly 90%.After new filter puts into operation, the main physical and chemical index of fluid is good, system lubrication effect is improved greatly, the abrasion condition of bearing is tending towards normal.Concrete data are as follows:
The main physical and chemical index of system fluid, dustiness detect:
System fluid lubricant effect detects:
The raising of filter effect directly delays the oil product replacement cycle, within 1 year, can save oil product consumption costs 500,000 yuan.New filter not only increases bearing service life, and the stable operation of system also decreases downtime simultaneously, brings larger indirect economic effect.If new filter is introduced import equipment and needed 400,000 yuan altogether, we only spend 10000 yuan by the magnetic net integrated filtering device of autonomous Design manufacture, save funds 390,000 yuan altogether.
Above to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.
Claims (6)
1. a Mill lubricating system oil-returning filtering device, described backing roll lubricating system, comprises fuel tank (1), fuel tank (1) is connected with flowline and oil return pipe (2); It is characterized in that: described oil-returning filtering device, be made up of the filter (3) being located at fuel tank (1) interior oil return pipe (2) outlet below; Described filter (3) is just to oil return pipe (2) outlet, and the lubricating oil flowed out from oil return pipe (2) enters fuel tank (1) again and recycles after filter (3) filters; Described filter (3), comprises DPU disk pack unit (4), is set with metal filter screen (5) outward at described DPU disk pack unit (4); Metal coating net is set with outward at described metal filter screen (5);
Described DPU disk pack unit (4), be made up of disk connecting rod (13) and the disk (12) be sleeved on disk connecting rod (13), disk (12) is open circles plate-like, and disk connecting rod (13) is made up of plastic material rod member;
Described oil return pipe (2) exit end face is horizontal by 45 ° of angles; And aperture is provided with on described oil return pipe (2) outlet end tube wall; Described metal filter screen (5) filtering accuracy is 100 ~ 120 orders; It is 550mm place with fuel tank (1) distance from top that described filter (3) is located at oil return pipe (2) below.
2. Mill lubricating system oil-returning filtering device as claimed in claim 1, it is characterized in that: described filter (3) is located in described fuel tank (1) by filter mounting bracket (7), described filter mounting bracket (7) is provided with the installing hole (8) for mounting filter (3); Top end cover is established on described filter (3) top; The top end cover that described filter (3) is contained in installing hole (8) after-filter (3) is stuck in installing hole (8) top; The top end cover of filter (3) is provided with handle (9).
3. Mill lubricating system oil-returning filtering device as claimed in claim 2, it is characterized in that: described filter mounting bracket (7) is connected in fuel tank (1) by base, described filter mounting bracket (7) is connected with base by alignment pin.
4. Mill lubricating system oil-returning filtering device as claimed in claim 3, it is characterized in that: lapping plate (10) is established at described DPU disk pack unit (4) top, described DPU disk pack unit (4) is stuck on filter (3) end cap by this lapping plate (10).
5. Mill lubricating system oil-returning filtering device as claimed in claim 4, is characterized in that: set cross section as the spout hole of rectangle at described fuel tank (1) oil back chamber wall; Oil return pipe (2) is provided with fluid thief hole.
6. a Mill lubricating system oil return filter method, utilizes the Mill lubricating system oil-returning filtering device described in any one of claim 1-5 to realize; It is characterized in that: after the complete Mill of oil lubrication, enter filter by oil return pipe outlet outflow; After the DPU disk pack unit single filter of filter, then through the metal filter screen cascade filtration of filter, then flowed out by metal coating net and enter fuel tank, complete filtration.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310084914.6A CN103191923B (en) | 2013-03-18 | 2013-03-18 | A kind of Mill lubricating system oil-returning filtering device and filter method |
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| CN201310084914.6A CN103191923B (en) | 2013-03-18 | 2013-03-18 | A kind of Mill lubricating system oil-returning filtering device and filter method |
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| CN103191923B true CN103191923B (en) | 2015-10-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437979A (en) * | 2013-08-27 | 2013-12-11 | 成都添益天然气压缩机制造有限公司 | Automatic lubricating oil compensation device of natural gas compressor |
| CN103899601A (en) * | 2014-02-26 | 2014-07-02 | 宁波斯达弗液压传动有限公司 | Self-seal magnetic filtering device |
| CN109772901A (en) * | 2019-02-12 | 2019-05-21 | 河钢股份有限公司承德分公司 | Supporting roller bearing water inlet detecting device and system |
| CN111889509B (en) * | 2020-06-01 | 2022-08-30 | 邯郸一三高研科技有限公司 | Cold-rolled ribbed steel bar production equipment and production method |
| CN111946530B (en) * | 2020-08-13 | 2022-05-31 | 张方庆 | Early warning monitoring protection system for bearing bush burnout of bulb tubular unit |
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| US4495068A (en) * | 1979-10-29 | 1985-01-22 | Rosaen Nils O | Fluid filtering device |
| US4705626A (en) * | 1986-03-19 | 1987-11-10 | Aldo Morelli | Magnetic oil filter module |
| CN201326887Y (en) * | 2008-12-29 | 2009-10-14 | 中国第一重型机械集团公司 | Oil tank for oil film bearing lubrication system |
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