CN208858689U - A kind of misconstruction of filter core and magnetic return filter and hydraulic power unit - Google Patents
A kind of misconstruction of filter core and magnetic return filter and hydraulic power unit Download PDFInfo
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- CN208858689U CN208858689U CN201821686805.6U CN201821686805U CN208858689U CN 208858689 U CN208858689 U CN 208858689U CN 201821686805 U CN201821686805 U CN 201821686805U CN 208858689 U CN208858689 U CN 208858689U
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- permanent magnetism
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Abstract
The utility model discloses a kind of misconstruction of filter core and magnetic return filters and hydraulic power unit, several permanent magnetism pieces that the misconstruction of filter core includes sleeve and is sleeved on outside sleeve side by side, oily notch was uniformly offered in permanent magnetism on piece, from one end of sleeve between the other end, sleeve outer surface is axially provided with guide ledges along sleeve, it is corresponding to offer guide groove along the axial center mounting hole inner wall in each permanent magnetism piece of sleeve, and there is reference line in the magnetic pole end face subscript of permanent magnetism piece note, the reference line and one of them excessively oily notch are located on the same diameter line of permanent magnetism piece, the angle between diameter line and reference line where the guide groove of each permanent magnetism on piece is unequal；The guide ledges are located in guide groove, and the excessively oily notch of each permanent magnetism on piece is made circumferentially to be staggered along sleeve.The utility model is convenient for when assembling or adjusting filter core, guarantees that the excessively oily notch of each permanent magnetism on piece is circumferentially staggered on filter core, it is ensured that filter effect of the magnetic return filter to metal powder.
Description
Technical field
The utility model relates to filtration device structures, and in particular to a kind of misconstruction of filter core and magnetic return filter and
Hydraulic power unit.
Background technique
Filter is installed in the inlet port and oil return opening of hydraulic power unit, to filter the impurity in removal hydraulic system, liquid
Impurity main source in pressure system are as follows: one, cleaning after remain on the mechanical admixture in hydraulic system, such as scale, casting sand, weldering
Slag, iron filings, paint skin and cotton yarn bits etc.；Two, the external impurity for entering hydraulic system, such as enters the ash in fuel tank through oil filler
Dirt；Three, the impurity that the course of work generates, the component movement abrasion if sealing element is under pressure the fragment to be formed, in oil scavenge pump
The metal powder of generation, colloid, asphalitine, breeze that hydraulic oil is generated by oxidation deterioration etc..General filter all may be used mostly
To filter solid particle, dust, colloid and asphalitine in removal hydraulic oil, but for metal powder, existing technology can only
It is removed by magnetic filter.As 204193643 U of CN discloses a kind of magnetic filter, which is characterized in that including upper
Lid, filter vat, inner hollow central shaft tube and multiple be sequentially connected in series and the permanent-magnet magnetic for adsorbing iron content particle in oil liquid
Core group；The upper cover is fixedly connected with filter vat encloses a cavity, and the central shaft tube and multiple permanent magnetic core groups accommodate
In the cavity, and multiple permanent magnetic core groups are successively socketed in outside central shaft tube；The two sides of the upper cover be respectively equipped with oil inlet and
The bottom end of oil outlet, the central shaft tube is equipped with fuel feed hole, and the top of the central shaft tube is communicated with oil outlet；Oil liquid from into
Hydraulic fluid port enters and flows to filter vat bottom from top to bottom from the surface of multiple permanent magnetic core groups, and the oil liquid of filter vat bottom enters
It is discharged after central shaft tube from oil outlet；Each permanent magnetic core group includes permanent magnetism magnetite and two irony ring gears, described two iron
Matter ring gear is pull-in on the upper and lower ends of permanent magnetism magnetite respectively.And each irony ring gear is made of multi-disc gear piece, and per adjacent
One end of two panels gear piece, which is in contact, to be pull-in on permanent magnetism magnetite, adjacent two panels gear piece after the other end per adjacent two panels gear piece separates
Between form the gap flowed through of oil liquid.
Positioning is made in the magnetic filter of above structure, the gap that do not cross to the fuel feeding liquid stream on adjacent two gear piece, dress
Timing such as axially aligns in the gap that fuel feeding liquid stream is crossed on adjacent two gear piece along permanent magnetic core group, when oil liquid flows through permanent magnetic core group
When, the case where flowing through there are oil liquid straight line from the gap between adjacent two gear piece, which is magnetic induction in permanent magnetic core group
The most weak place of intensity, leads to the adsorption filtration decreased effectiveness to metal powder, directly affects the filter effect of magnetic filter.
Summary of the invention
The purpose of the utility model is to provide a kind of misconstruction of filter core and magnetic return filter and hydraulic power unit, with
Convenient for when assembling or adjusting filter core, guaranteeing that the excessively oily notch of each permanent magnetism on piece is circumferentially staggered on filter core, it is ensured that magnetic oil return
Filter effect of the filter to metal powder.
The misconstruction of filter core described in the utility model, including sleeve and several permanent magnetism pieces, several permanent magnetism pieces are arranged side by side
Be sleeved on outside sleeve, the magnetic pole of each adjacent two permanent magnetism piece institute face on the contrary, make to form magnetic field between two neighboring permanent magnetism piece, and
Oily notch was uniformly offered in permanent magnetism on piece, the excessively oily breach quantity of several permanent magnetism on pieces is consistent；From one end of sleeve to
Between the other end, sleeve outer surface is axially provided with guide ledges along sleeve, it is corresponding axial in each permanent magnetism piece along sleeve
Center mounting hole inner wall all offers guide groove, and has reference line in the magnetic pole end face subscript of permanent magnetism piece note, the reference line and its
In an excessively oily notch be located on the same diameter line of permanent magnetism piece, the diameter line and benchmark where the guide groove of each permanent magnetism on piece
Angle between line is unequal；The guide ledges are located in guide groove, make the excessively oily notch of each permanent magnetism on piece along sleeve circumferential direction
It is staggered.
Further, the two sidewalls transition fit of the inner sidewall of the guide groove and guide ledges.
The utility model also proposed a kind of magnetic return filter, including tank body, the tank being removably mounted on tank body
The intracorporal element kit of tank is covered and is located at, the element kit includes mandrel, the sleeve being sleeved on mandrel and is set with side by side
Several permanent magnetism pieces outside sleeve, such as above-mentioned misconstruction between sleeve and several permanent magnetism pieces.
The utility model also proposed a kind of hydraulic power unit, which includes above-mentioned magnetic return filter.
Utility model has the advantages that by the way that guide ledges are axially arranged along it in sleeve outer surface, it is corresponding in permanent magnetism
The center mounting hole inner wall of piece opens up guide groove, and between the diameter line and reference line where the guide groove of each permanent magnetism on piece
Angle is unequal, so that the excessively oily notch of each permanent magnetism on piece is circumferentially staggered along sleeve, so that the hydraulic oil for increasing unit volume is logical
The path length when magnetic field between every two permanent magnetism piece is crossed, more preferably to the metal powder adsorption effect in hydraulic oil.And
When adjusting the distance between adjacent two permanent magnetism piece, permanent magnetism piece can only be moved axially along sleeve, but not rich sleeve circumferentially rotates, and keeps away
The case where excessively oily notches of several permanent magnetism on pieces is axially aligned along sleeve is exempted to occur.
Detailed description of the invention
Fig. 1 is the structure sectional view of magnetic return filter described in the utility model；
Fig. 2 is the element kit schematic diagram in magnetic return filter；
Fig. 3 is the schematic diagram of mandrel；
Fig. 4 is the schematic diagram of sleeve；
Fig. 5 is the portion the A enlarged drawing in Fig. 1；
Fig. 6 is that a permanent magnetism piece is mounted on the top view on sleeve；
Fig. 7 is the portion the B enlarged drawing of Fig. 6；
Fig. 8 is that another permanent magnetism piece is mounted on the top view on sleeve；
The portion the C enlarged drawing of Fig. 8 in Fig. 9；
Figure 10 is the axonometric drawing of hydraulic power unit described in the utility model；
Figure 11 is the front view of hydraulic power unit described in the utility model；
In figure: 1-tank body, 2-covers, 3-mandrels, 4-the first compressed springs, 5-sleeves, 6-location nuts, 7-
Permanent magnetism piece, 8-sealing elements, 9-spring fastenings, 10-the second compressed springs, 11-fuel tanks, 12-oil path blocks, 13-oil returns
Filter, 14-air cleaners, 15-manual oil scavenge pumps, 16-frameworks, 17-multiple directional control valves, 18-hydraulic control one-way valves,
19-one-way throttle valves, 110-check valves, 111-electronic oil scavenge pumps, 112-three-way connections, 113-motors；
101-filter outlets, 102-mounting flanges；201-filter inlets, 202-differential pressure transmitter device installing ports；
301-sleeve bearings, 501-external thread sections, 502-guide ledges, 503-positive stop lug boss；701-excessively oily notches, 702-mistakes
Oily slit, 703-guide grooves, 704-reference lines.
Specific embodiment
The utility model will be further described with reference to the accompanying drawing.
Magnetic return filter referring to figs. 1 to 5, including tank body 1, the cover being removably mounted on tank body 12
And the element kit in tank body 1, filter inlet 201 is offered on cover 2, offers filter in 1 bottom of tank body
Outlet 101；The element kit includes mandrel 3, the sleeve being sleeved on mandrel 35 and is sleeved on side by side several outside sleeve 5
A permanent magnetism piece 7, each tool of permanent magnetism piece 7 is by the pole N and the pole S, and the magnetic pole of each adjacent two permanent magnetism 7 faces of piece is on the contrary, make adjacent
Magnetic field is formed between two permanent magnetism pieces 7, oily notch 701, the mistake on several permanent magnetism pieces 7 were uniformly offered on permanent magnetism piece 7
Oily 701 quantity of notch is consistent, and the excessively oily notch 701 on several permanent magnetism pieces 7 is circumferentially staggered along sleeve, to increase unit volume
Hydraulic oil by magnetic field between every two permanent magnetism piece 7 when path length, to improve element kit to golden in hydraulic oil
Belong to the adsorption filtration effect of powder.Excessively oily notch 701 on each permanent magnetism piece 7 and the space composition between every adjacent two permanent magnetism piece 7
Filter inlet 201 on cover 2 is connected to by oil passage, the oil passage with the filter outlet 101 of 1 bottom of tank body.
It should be noted that being all set with the second pressure outside the sleeve 5 between each adjacent two permanent magnetism piece 7 in the present embodiment
Contracting spring 10, the both ends of second compressed spring 10 are born against on the permanent magnetism piece 7 at its both ends；In the lower end appearance of sleeve 5
Face is provided with positive stop lug boss 503, is resisted against on the positive stop lug boss 503 positioned at sleeve 5 the lowermost, one permanent magnetism piece 7；In sleeve 5
Upper end outer surface be provided with external thread section 501, be bolted with spring fastening 9 on the external thread section 501, the spring fastening 9 against
On a permanent magnetism piece 7 of 5 the top of sleeve, by several permanent magnetism pieces 7 along 5 axial compression of sleeve；And in spring fastening 9 and tank
It is pressed with the first compressed spring 4 between lid 2, axially position is carried out to sleeve 5, turns spring production 9, can be adjusted per adjacent two
The distance between a permanent magnetism piece 7 so as to adjust the magnetic induction intensity between adjacent two permanent magnetism piece 7, and then improves element kit pair
The adsorption capacity of metal powder.
As a kind of preferred embodiment of the present embodiment, from 5 upper end of sleeve to lower end, between each adjacent two permanent magnetism piece 7
The spring force of the second compressed spring 1 be sequentially reduced, so that the distance between adjacent two permanent magnetism piece be made to be sequentially reduced, adjacent two forever
The magnetic induction intensity in magnetic field is sequentially increased therewith between magnetic sheet, metal powder when hydraulic oil passes through element kit, in hydraulic oil
The adsorption capacity being subject to is gradually increased, so as to avoid going out first in the magnetic field between two permanent magnetism pieces of sleeve the top
The case where now blocking, and it is located at the case where not blocking in magnetic field between two permanent magnetism pieces of sleeve the lowermost appearance,
Obviously, the cleaning frequency of element kit is extended.
It should be noted that in the present embodiment, the lower end of mandrel 3 is provided with sleeve bearing 301, the sleeve 5
Lower end surface is resisted against on sleeve bearing 301, and sleeve bearing 301 can guarantee 5 the lowermost of sleeve, one permanent magnetism piece 7 and tank body 1
There is gap, so as to form the cavity of certain volume, convenient for flowing to the hydraulic oil of 1 bottom of tank body from oil passage between bottom
Collect at the cavity, is finally flowed out from filter outlet 101.
And in the present embodiment, in order to prevent hydraulic oil from the gap between 1 inner wall of outer edge and tank body of permanent magnetism piece 7
Pass through, and do not have filter effect, one circle sealing element 8 is installed in the outer edge of permanent magnetism piece 7, to permanent magnetism piece 7 and 1 inner wall of tank body
Between gap be sealed so that from filter inlet 201 enter tank body 1 in hydraulic oil can only be from several permanent magnetism pieces 7
On the oil passage that forms of excessively oily notch 701 pass through, the metal powder in hydraulic oil is adsorbed and is gathered between permanent magnetism piece 7
Magnetic field in, filtered hydraulic oil then from filter outlet 101 flow out.
As a kind of preferred embodiment of the present embodiment, under the premise of guaranteeing filter effect, in order to increase in the unit time
The conveyance capacity of element kit was also provided with oily narrow orifice 702 on the permanent magnetism piece 7 between the excessively oily notch 701, several
Excessively oily narrow orifice 702 on permanent magnetism piece 7 is circumferentially staggered along sleeve 5.
It should be noted that being also provided on the cover 2 for installing differential pressure transmitter device (in figure in the present embodiment
Be not shown) differential pressure transmitter device installing port 202, when element kit is there are when stopping state, 201 pressure of filter inlet and filtering
Pressure difference (generating the pressure loss by the hydraulic oil of element kit) is generated between device outlet 101, when pressure difference increases to pressure difference
When signalling generator setting, differential pressure transmitter device issues signal automatically, reminds operator that should clean element kit, it is ensured that hydraulic power unit
Safe operation.
And it should be noted that mounting flange 102, i.e. this reality have been wholely set in the outer wall of tank body 1 in the present embodiment
The mounting means of the magnetic return filter in example is applied for flange installation, it is of course also possible to use other mounting means, are such as clamped
Installation, anchor ear installation etc., does not describe one by one herein.
The magnetic induction intensity adjustment process of the filter core of the magnetism return filter are as follows: cover 2 is opened, by element kit from tank
It is taken out in body 1, then tightens spring fastening 9, spring fastening 9 pushes a permanent magnetism piece 7 of 5 the top of sleeve to 5 lower end of sleeve
Direction is mobile, and the second compressed spring adjacent thereto is compressed, and next permanent magnetism piece 7 is then pushed to move to the lower extreme direction of sleeve 5
It is dynamic, and so on, the distance between each permanent magnetism piece 7 is reduced, to increase the magnetic induction between two neighboring permanent magnetism piece 7
Intensity.
The cleaning way of element kit in the magnetism return filter are as follows: tear magnetic return filter from hydraulic power unit open
Under, cover 2 is opened, element kit is taken out out of tank body 1, using giant repeatedly to being adsorbed on magnetic field between permanent magnetism piece 7
Interior metal powder is rinsed, until being no longer adsorbed with metal powder in magnetic field between permanent magnetism piece 7, then by element kit
It installs in tank body 1, is finally reinstalled in the magnetic return filter after cleaning hydraulic after naturally dry or cold wind drying
On pumping plant.
In the present embodiment, when the magnetic induction intensity of the filter core to magnetic return filter is adjusted, permanent magnetism piece 7 is possible to meeting
It circumferentially rotates around sleeve 5, it cannot be guaranteed that the excessively oily notch 701 on several permanent magnetism pieces 7 is in circumferential misalignment state, or even can go out
Excessively oily notch 701 on several existing permanent magnetism pieces 7 situation circumferentially aligned along sleeve, the hydraulic oil of unit volume pass through every two
Time used in magnetic field between permanent magnetism piece 7 reduces, to reduce absorption of the element kit to metal powder in hydraulic oil
Filter effect.Therefore, also proposed a kind of misconstruction of filter core in the present embodiment, the misconstruction is as shown in Figures 6 to 9, from
The external thread section 501 is axially provided with guide ledges 502 in 5 outer surface of sleeve along sleeve 5 between the lower end of sleeve 5, right
Guide groove 703 should be offered along the axial center mounting hole inner wall in each permanent magnetism piece 7 of sleeve 5, and in the magnetic of permanent magnetism piece
Label has 704 on extreme face, which is located at the same diameter of permanent magnetism piece 7 with one of them excessively oily notch 701
On line, the angle between the diameter line and reference line 704 where guide groove 703 on each permanent magnetism piece 7 is unequal, the guiding
Boss 502 is located in guide groove 703, and the two sidewalls transition fit of the inner sidewall of the guide groove 703 and guide ledges 502.
When the magnetic induction intensity of the filter core to magnetic return filter is adjusted, permanent magnetism piece 7 can only be moved along guide ledges 502
It is dynamic, and cannot be circumferentially rotated around sleeve.
The cleaning way of element kit in the magnetism return filter are as follows: tear magnetic return filter from hydraulic power unit open
Under, cover 2 is opened, element kit is taken out out of tank body 1, using giant repeatedly to being adsorbed on magnetic field between permanent magnetism piece 7
Interior metal powder is rinsed, until being no longer adsorbed with metal powder in magnetic field between permanent magnetism piece 7, then by element kit
It installs in tank body 1, is finally reinstalled in the magnetic return filter after cleaning hydraulic after naturally dry or cold wind drying
On pumping plant.
The utility model also proposed a kind of hydraulic power unit, referring to Figure 10 and Figure 11, including fuel tank 11, manual oil scavenge pump
15, air cleaner 14, motor 113, electronic oil scavenge pump 111, oil absorption filter (not shown), return filter 13, list
To throttle valve 19, hydraulic control one-way valve 18, multiple directional control valve 17, oil path block 12 and framework 16；Oil absorption filter is located in fuel tank 11,
Air cleaner 14 and return filter 13 are all mounted on the top surface of fuel tank 11, which returns for above-mentioned magnetism
Oil strainer, and oil return opening of the oil inlet of return filter 13 as hydraulic power unit；The framework 16 is fixed on fuel tank side by side
11 sides, the manual oil scavenge pump 15, motor 113 and electronic oil scavenge pump 111 are all mounted in framework 16, electronic oil scavenge pump 111
Shaft connect with the shaft of motor 113 by shaft coupling, the inlet port of electronic oil scavenge pump 111 and manual oil scavenge pump 15 all passes through
High-pressure oil pipe is connect with the oil absorption filter in fuel tank 11, the oil outlet of the oil outlet of electronic oil scavenge pump 111, manual oil scavenge pump 15
It is connect respectively with an interface of three-way connection 112；The top surface of the framework 16 and fuel tank 11 is as other in hydraulic power unit
The mounting surface of component, the one-way throttle valve 19, hydraulic control one-way valve 18, multiple directional control valve 17 and oil path block 12 are mounted side by side solid
It is scheduled on the top surface of framework 16 and fuel tank 11；112 remaining interfaces of the three-way connection by high-pressure oil pipe successively with oil
Road block 12, multiple directional control valve 17, hydraulic control one-way valve 18, one-way throttle valve 19 connect, and the outlet of one-way throttle valve 19 is as hydraulic
The oil outlet of pumping plant.
Claims (4)
1. a kind of misconstruction of filter core, including sleeve (5) and several permanent magnetism pieces (7)；It is characterized by: several permanent magnetism pieces
(7) it is sleeved on outside sleeve side by side, the magnetic pole of each adjacent two permanent magnetism piece institute face is on the contrary, make to be formed between two neighboring permanent magnetism piece
Magnetic field, and oily notch (701) was uniformly offered in permanent magnetism on piece, the excessively oily breach quantity of several permanent magnetism on pieces is consistent；From
One end of sleeve is axially provided with guide ledges (502) in sleeve outer surface between the other end along sleeve, corresponding along quill
It offers guide groove (703) to the center mounting hole inner wall in each permanent magnetism piece, and remembers in the magnetic pole end face subscript of permanent magnetism piece
Have reference line (704), the reference line and one of them excessively oily notch are located on the same diameter line of permanent magnetism piece, each permanent magnetism on piece
Guide groove where diameter line and reference line between angle it is unequal；The guide ledges are located in guide groove, make respectively forever
Excessively oily notch on magnetic sheet is circumferentially staggered along sleeve.
2. the misconstruction of filter core according to claim 1, it is characterised in that: the inner sidewall of the guide groove (703) with lead
To the two sidewalls transition fit of boss (502).
3. a kind of magnetism return filter, including tank body (1), the cover (2) being removably mounted on tank body and is located in tank body
Element kit, it is characterised in that: the element kit include mandrel (3), the sleeve (5) being sleeved on mandrel and side by side set
Several permanent magnetism pieces (7) outside sleeve have in claim 1 and 2 between sleeve (5) and several permanent magnetism pieces (7) and appoint
Misconstruction described in one.
4. a kind of hydraulic power unit, it is characterised in that: the hydraulic power unit includes magnetic oil return filter described in the claims 3
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821686805.6U CN208858689U (en) | 2018-10-18 | 2018-10-18 | A kind of misconstruction of filter core and magnetic return filter and hydraulic power unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821686805.6U CN208858689U (en) | 2018-10-18 | 2018-10-18 | A kind of misconstruction of filter core and magnetic return filter and hydraulic power unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208858689U true CN208858689U (en) | 2019-05-14 |
Family
ID=66421114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821686805.6U Active CN208858689U (en) | 2018-10-18 | 2018-10-18 | A kind of misconstruction of filter core and magnetic return filter and hydraulic power unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208858689U (en) |
-
2018
- 2018-10-18 CN CN201821686805.6U patent/CN208858689U/en active Active
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