CN203018189U - Permanent magnet magnetic rod with inclined magnet yoke structure and magnetic iron removing device - Google Patents
Permanent magnet magnetic rod with inclined magnet yoke structure and magnetic iron removing device Download PDFInfo
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- CN203018189U CN203018189U CN 201220412174 CN201220412174U CN203018189U CN 203018189 U CN203018189 U CN 203018189U CN 201220412174 CN201220412174 CN 201220412174 CN 201220412174 U CN201220412174 U CN 201220412174U CN 203018189 U CN203018189 U CN 203018189U
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Abstract
The utility model discloses a permanent magnet magnetic rod with an inclined magnet yoke structure for solving the technical problem of puzzling iron removal and magnetic separation. After the permanent magnet magnetic rod with the inclined magnet yoke structure disclosed by the utility model is arranged in an iron removal and magnetic separation device, the problem of generating zero magnetic field is effectively solved, the amplitude of the magnetic field of absorbing ferromagnetic impurities can be expanded so that the iron removal efficiency is improved, the technical upgrade of the iron removal magnetic and separation device is smoothly achieved under the premise of not increasing a mechanical treatment space of the magnetic rod and the manufacturing cost of the magnetic rod, and the sweeping efficiency of removing the ferromagnetic impurities attached on the magnetic rod can be improved. The permanent magnet magnetic rod is suitable for iron removal and magnetic selection of food industry, dairy industry, beverage industry, pharmaceutical industry, battery industry, plastic industry, ceramic industry, chemical industry, rubber industry, paint industry, dye industry, and the industries such as building materials, feeds, fertilizers and mining industry, has important significance on reduction of retention of impure substances and improvement of product quality, and can bring about obvious economic effect.
Description
Technical field
The utility model relates to a kind of permanent magnet bar magnet of the yoke arrangement that tilts.
Background technology
Permanent magnet bar magnet with inclination yoke arrangement is one of important technology invention of our company.This bar magnet of configuration in the deironing magnetic plant, can deadband eliminating or zero magnetic field, improve de-ferrous effect, effectively dispose the Ferromagnetic Impurities that is mingled in various powderies, graininess, liquid, slurry, be applicable to deironing and the magnetic separation needs of the industries such as food, dairy products, beverage, pharmacy, environmental protection, plastics, pottery, chemical industry, rubber, pigment, dyestuff, building materials, feed, fertilizer, mining industry.
Producing and product adds man-hour at food, dairy products, beverage, condiment, medicine, plastics, pottery, chemical industry, feed, fertilizer industry, because raw material itself contains some ferromagnetic materials, the various conveyance conduits that perhaps arrange on production line, screen cloth valve, filtration system, movement systems etc. due to mechanical friction, Physical Damage or metal fatigue, produce some iron filings or metal fragment sometimes in its running or course of conveying.And if these Ferromagnetic Impurities exist in product, the quality that it will seriously affect product jeopardizes consumer's health of human body, so how to remove these Ferromagnetic Impurities, is a very important thing in fact for above-mentioned these industries.
In order to remove the Ferromagnetic Impurities that occurs in process of production, avoid sneaking into of foreign body, guarantee the safety of product quality, a lot of enterprises all are provided with various magnetic deironing equipment and magnetic plant on production line.
The bar magnet that configures in these magnetic deironing equipment or magnetic plant, major part (is consulted Fig. 7 as our company's patent (Unexamined Patent 8-10642 communique), Fig. 8) the column type permanent magnet bar magnet 8 of record, it is configured to: magnetic core (column type permanent magnet) 82 and the radially mutual arranged perpendicular of yoke (magnetic conduction steel disc) 83 and bar magnet, connect by endoporus with connecting axle 85 each other fixing, the outside with the stainless steel sleeve pipe 87 of non-magnet material with its overcoat.
Also have, as our company's utility model (utility model registration the 3164152nd communique) (Fig. 9, Figure 10) record, the disconnected cross sectional shape of bar magnet is not circular but foreign pears (Pear-shaped) shape or tear-drop shape.It is configured to: the magnetic core of tear type permanent magnet 92 and the radially mutual arranged perpendicular of yoke (magnetic conduction steel disc) 93 and bar magnet, connect each other fixingly by endoporus with connecting axle 95, and the stainless steel sleeve pipe 97 of outside use non-magnet material is with its overcoat.
The bar magnet of above this several types has been widely used in the magnetic deironing equipment of various production body of powder, granule, aqueous body product line now.For example, when coccoid raw material or product are carried out deironing, configure bar magnet by horizontal direction exactly in the path that object being treated falls naturally by gravity, naturally the powdered substance that falls by gravity like this is through bar magnet the time, the Ferromagnetic Impurities that contains in the coccoid raw material will firmly be adsorbed by the magnetic force of bar magnet and sticks on bar magnet, and will can not keep again Ferromagnetic Impurities by coccoid raw material or the product of bar magnet, so reached the purpose of deironing.
Due to the configuration of the yoke in above-mentioned bar magnet (magnetic conduction steel disc) 83,93, be according to configuring alternately with bar magnet 8,9 is radially vertical.As shown in figure 11, periphery in yoke (magnetic conduction steel disc) 83,93 distributes the strongest along the magnetic force that rod-rod-body divides, and in yoke (magnetic conduction steel disc) 83, magnetic core between 93 (column type permanent magnet or tear type permanent magnet) 82, the magnetic force of 92 mid portions distributes the most weak (magnetic line of force is in zero position) for it, therefore can cause following two problems to occur:
(1) along bar magnet 8, the 9 magnetic force dispersions of distribution of radially extending, because being limited to yoke (magnetic conduction steel disc) 83, between 93, relatively narrow, so just may occuring when vertically falling when the material that contains Ferromagnetic Impurities Q, some can pass through at the most weak pars intermedia of magnetic force, and without the strongest yoke of magnetic force (magnetic conduction steel disc) 83,93, so the absorption that a part of Ferromagnetic Impurities Q flees from bar magnet can occur, flow down with material.In other words, dead band (Dead Zone) occurs exactly or produce zero magnetic field, thereby do not reach the purpose of complete deironing.
(2) when using and the radially rectangular remover of bar magnet, removing sticks to bar magnet 8, during the Ferromagnetic Impurities Q of 9 leading sections, because Ferromagnetic Impurities is gathered in the strong yoke of magnetic force (magnetic conduction steel disc) 83,93 periphery top, therefore can cause remover its driving force when sliding can not keep stable, shake, it can affect again the effect of removing the Ferromagnetic Impurities that is adsorbed on bar magnet.
Also have, as shown in Figure 8, when column type permanent magnet bar magnet 8, according to when direction that granular material falls naturally becomes level angle to be configured, the granular material that constantly falls is through bar magnet the time, will some be deposited in the hill of a deposit of upper end formation of bar magnet, and the magnetic field intensity of its outer end will weaken.For this reason, the Ferromagnetic Impurities Q in granular material understands some from magnetic force little deposit outer end or outside landing, is not adsorbed by bar magnet and mixes in the material of diffluence, does not reach the purpose of removing Ferromagnetic Impurities fully for this reason.But, for this problem, if use the tear type permanent magnet bar magnet of our company's invention, as Fig. 9 and shown in Figure 10, basically can be resolved.
For above-mentioned pointed zero magnetic field problem, our company was once studied, and for example solved this problem with the method that adopts tilted configuration vertical yoke column type permanent magnet bar magnet.Namely in containing the way that Ferromagnetic Impurities Q material vertically falls, not according to horizontal direction, but according to incline direction configuration vertical yoke column type permanent magnet bar magnet, after Ferromagnetic Impurities Q is by the weak pars intermedia of magnetic force, because Action of Gravity Field also will continue vertically to fall, thus its will be also will by or join 83,93 near the strongest yoke of magnetic force, so Ferromagnetic Impurities Q can firmly be adsorbed by bar magnet, can not escape the generation of magnetic field phenomenon.According to the practice of our company, really can effectively solve the problem in said dead band or zero magnetic field with this method.
But, even adopt the method for this tilted configuration column type permanent magnet bar magnet 8,9, also still can not solve the problem that proposes fully.And, tilted configuration vertical yoke column type permanent magnet bar magnet 8,9 o'clock, occupy more mechanical treatment space than horizontal arrangement, also need bar magnet is lengthened.In general, in magnetic deironing equipment, the space of configuration bar magnet is limited, and the bar magnet lengthening increases manufacturing cost again.This is also a difficult point taking tilted configuration column type permanent magnet bar magnet, so, need to find out a kind of better solution.
Also have, when removing is adsorbed on Ferromagnetic Impurities on bar magnet, because the front end of remover is partly according to radially oblique downslide, although can reduce like this resistance of driving force, can solve to a certain extent the above-mentioned vibration problems that proposes, still, due to the front end of remover part with radially become inclination, therefore want the Ferromagnetic Impurities that is adsorbed on bar magnet 8,9 two ends is disposed fully, also also have the problem that much need to solve.
［ technical literature ］
［ patent documentation ］
［ patent documentation ］ Unexamined Patent 8-10642 communique
［ patent documentation ］ utility model registration the 3164152nd communique
The utility model content
The purpose of this utility model will be innovated a kind of brand-new technology exactly, solves to rely on conventional art and indeterminable technical barrier.Adopt present technique, namely can strengthen the magnetic field fabric width of absorption Ferromagnetic Impurities, can avoid again the generation in dead band or zero magnetic field; Can also accomplish not increase the mechanical treatment space of configuration bar magnet, not increase again length and the manufacturing cost of bar magnet; Can also effectively solve and clean the Ferromagnetic Impurities that is adsorbed on bar magnet.
Our company, through research and repeatedly practice repeatedly, magnetic core and yoke that discovery radially configures alternately according to bar magnet are if adopt the method for tilted configuration, at least can effectively solve a series of technical barriers that bring due to arranged perpendicular, reach the purpose that the utility model will reach.
Technical characterictic of the present utility model is as follows:
(1) radially the magnetic core of configuration and the part that has at least of yoke radially become tilted configuration with bar magnet alternately with bar magnet.
(2) inclination yoke and bar magnet radial section become the angle [alpha] of inclination, should be in following scope:
3M／8L≤tanα≤5M/4L--------(C)
In the C formula, L is perpendicular to bar magnet diameter of section radially, and M removes bar magnet two ends core length radially.
(3) bar magnet is possess that above (1) and (2) narrate whole or a part of technical characterictic wherein, and the arrangement of its yoke and magnetic core is tilted configuration.
(4) with the yoke (magnetic conduction steel disc) and magnetic core (permanent magnet) of the mutual configuration of bar magnet radial skew, meet above (1), (2), (3) described feature whole or any one wherein.
(5) bar magnet radially the shape of vertical cross-section can be circular, oval, polygonal or tear drop shape foregoing and that bar magnet is radially symmetrical.Its configuration should meet above (1), (2), (3), (4) described technical characterictic whole or any one wherein.
(6) as the magnetic core (permanent magnet) that forms the bar magnet monomer and yoke (magnetic conduction steel disc), heart section perforate therein connects with connecting axle, and fixes with bolt at the two ends of axle.Its configuration fixture construction should meet above (1), (2), (3), (4), (5) described technical characterictic whole or any one wherein.
(7) the magnetic iron-removal equipment of making according to the utility model, should configure and possess above (1) to the permanent magnet bar magnet of the whole or inclination yoke arrangement wherein any one of (6) feature, it radially should fall with the gravity of object direction and meets at right angles or be similar to the right angle, the cross section of its bar magnet should with object to fall direction parallel or approximate parallel.
(8) the magnetic iron-removal equipment of making according to the utility model, when the bar magnet cross sectional shape of configuration was tear-drop shape, it should fall along gravity according to handled object, and direction met at right angles or approximate right angle is configured, and the covering of the fan major part of its circular arc should be down.
The utility model possesses the technical characterictic of (1) to (8) narrated, can solve following problem and obtain following effect:
(1) use the permanent magnet bar magnet of inclination yoke arrangement, namely can strengthen the magnetic field fabric width that attracts Ferromagnetic Impurities, also can reduce Ferromagnetic Impurities and not be magnetized, do not produce zero magnetic field, so can greatly improve deironing
The permanent magnet bar magnet of (2) inclination yoke arrangement, the bar magnet that in the past used is the same, meet at right angles and be configured according to falling direction with material to be processed gravity, so can be as increase the mechanical treatment space by tilted configuration vertical yoke column type permanent magnet bar magnet.Therefore utilize existing equipment for removing ferric ion just can configure the permanent magnet bar magnet of inclination yoke arrangement, in the situation that do not increase cost, utilize the just successfully technology upgrading of finishing equipment of original equipment.
(3) with by incline direction configuration vertical yoke column type permanent magnet bar magnet compare, the permanent magnet bar magnet of configuration inclination yoke arrangement does not need to increase the length of bar magnet, so can not increase the manufacturing cost of bar magnet.
The permanent magnet bar magnet of (4) inclination yoke arrangement, because yoke radially becomes to tilt so increased the surface area of yoke section with bar magnet, the permanent magnet bar magnet of the yoke that for this reason tilts arrangement can adsorb more Ferromagnetic Impurities than general bar magnet, more can keep magnetic force stable, can also reduce the number of times of cleaning bar magnet Ferromagnetic Impurities.Also have, the phenomenon of magnetic can can't not appear in the Ferromagnetic Impurities after being adsorbed, and does not affect the flow direction of material, will reduce sharply through the amount of missing Ferromagnetic Impurities in the material to be processed of deironing processing like this.Just because of above these sharp points are arranged, after the permanent magnet bar magnet of having installed inclination yoke arrangement on equipment for removing ferric ion, can improve significantly de-ironing efficiency on the one hand, simultaneously the technology reliability of improvement and elevating mechanism also had good effect.
(5) if the magnetic core of inclination yoke arrangement and yoke are changed into magnetic core and the yoke of tear type permanent magnet, even so according to becoming level angle configuration bar magnet with the vertical direction that falls of material, the material to be processed of powder shaped also can not be deposited in the top of bar magnet, and the sort of situation of narrating as the front can not occur.Also have, because it is the most weak to be distributed in its top (point is circular, area minimum) along the magnetic force of tear type yoke peripheral part, and (fan is circular, and area is maximum) is the strongest in its bottom, is medium in its side.So, even some Ferromagnetic Impurities from the top of tear type permanent magnet and side toward lower slider, it also will be by the large firmly absorption of tear type permanent magnet bottom of magnetic force.Like this, the phenomenon of magnetic can can't not appear in the Ferromagnetic Impurities after being adsorbed, and does not affect the flow direction of material, will reduce sharply through the amount of missing Ferromagnetic Impurities in the material to be processed of deironing processing like this.Also have, remove the Ferromagnetic Impurities that sticks on bar magnet and also become than being easier to.
Description of drawings
Fig. 1 represents inclination yoke arrangement permanent magnet bar magnet of the present utility model, by its sectional view radially.
Fig. 2 represents the single sectional view of inclination yoke of the present utility model and magnetic core.
Fig. 3 represent to drop on inclination yoke arrangement permanent magnet bar magnet of the present utility model peripheral part Ferromagnetic Impurities move towards schematic diagram.
Fig. 4 represents the sectional view radially of bar magnet of the inclination yoke arrangement of the present utility model configuration tear type permanent magnet.
Fig. 5 represents the schematic diagram in cross section of the tear type permanent magnet bar magnet of inclination yoke arrangement of the present utility model.
Fig. 6 represents the schematic diagram of standing part of end face of the tear type permanent magnet bar magnet of inclination yoke arrangement of the present utility model.Wherein, I is sectional view radially, and II is at 1 sectional view of A-A radially.
Fig. 7 is the sectional view radially of the bar magnet that in the past used.
Fig. 8 drops in the past the figure that moves towards of the bar magnet that uses when Ferromagnetic Impurities.
Fig. 9 is the longitudinal section view of tear type permanent magnet.
Figure 10 is the sectional view of tear type permanent magnet.
Figure 11 represents to drop on the motion schematic diagram of Ferromagnetic Impurities of the peripheral part of bar magnet.
Figure 12 is the longitudinal section view of tear type permanent magnet.
Figure number wherein:
The permanent magnet bar magnet of 1 configuration inclination yoke arrangement
12 drums
The 12a circular arc portion
The intermediate point of 12b arc sections
The symmetry axis of 12c arc sections
The end points of 12d arc sections
13 chamfered portions
13a line part (sloping portion)
14 tops
The intersection point of 14a two line part extended lines
The 14b summit
2 magnetic cores
21 radial end faces (inclined plane)
22 radial end faces (with radially meeting at right angles)
The magnetic core monomer that 23 both ends of the surface tilt for it
25 cross sections are trapezoidal magnetic core monomer
3 yokes
31 inclination yokes
32 right angle yokes
33 cock yokes
331 the convolution hole
4 end materials
5 connecting axles
51 male threads
52 locking caps
The axle of 53 connecting axles
7 sleeve pipes
8 cross sections are column type permanent magnet bar magnet (in the past using)
82 short cylindrical shape magnetic cores
83 plate yoke
84 end materials
85 connecting axles
87 sleeve pipes
9 cross sections are tear type permanent magnet bar magnet (in the past using)
912 cylindrical portions may
913 chamfered portions
914 tops
92 short column tear type permanent magnet magnetic core monomers
93 plate yoke
94 ends
95 connecting axles
97 sleeve pipes
α inclination yoke and angle of inclination radially
The angle of β right angle part
The angle of γ circular arc
K is to radially yoke width
The path length of L to radially bar magnet
The length of M to radially magnetic core
P powder shaped object being treated
The ferromagnetic shape impurity of Q
The W weld part
The specific embodiment
The said inclination yoke of the utility model arrangement permanent magnet bar magnet refers to that yoke and magnetic core by radially configuration alternately of bar magnet, perhaps have the cross section of a part at least and radially become inclination, rather than with radially become vertical.
The yoke of tilted configuration, even a part just also can strengthen the magnetic field fabric width to the absorption Ferromagnetic Impurities, to reduce Ferromagnetic Impurities not magnetic or prevent that the generation in zero magnetic field from having certain meaning.For this reason, to the collocation form of inclination yoke, do not do special restriction, such as the inclination yoke can configure mutually with vertical yoke.But, if the yoke in bar magnet and magnetic core all are configured according to incline direction, so just can basically get rid of Ferromagnetic Impurities not magnetic or prevent the generation of zero magnetic field phenomenon, its effect is just more outstanding.
Yoke and magnetic core all should be configured by same angle of inclination, do not interspace each other.But when being connected connecting axle all to be connected in series connection with magnetic core, because its two ends is also skewed, will produce so bad fixing problem to each single yoke.Therefore, the magnetic core cross sectional shape of two ends should make right-angled trapezium or right angled triangle into, uses when being connected with the radially rectangular yoke of bar magnet, just more easily is fixed.For this reason, the magnetic core cross sectional shape in the termination should be trapezoidal or equiangular triangle, and then adds that the right angle yoke is fixed.
For can reduce to greatest extent Ferromagnetic Impurities not the generation in magnetic or zero magnetic field, the tilt angle alpha to the bar magnet radial section of inclination yoke and magnetic core, the magnetic core 23 that its lower limit represents with reference to Fig. 2 as numerical expression A:(once and the sectional view of yoke 31)
M／4L<=tanα<----(A)
In the A formula, L is perpendicular to bar magnet diameter of section radially, and M removes bar magnet two ends core length radially.
The length by the magnetic core of radial arrangement between the magnetic core of bar magnet two ends is preferably equal length, if when different in size, the length of magnetic core M also should be the mean value of each core length.In addition, when magnetic core cross section radially was trapezoidal or positive right angled triangle, the mean value of the said M in front should be the average of maximum (the leg-of-mutton bottom side length in trapezoidal or positive right angle) and minimum of a value (the trapezoidal upper length of side, positive right angled triangle is zero).
Better nothing zero magnetic field effect can not obtained in the undue α angle of inclination of strengthening, and too strengthens the α angle of inclination and will increase the manufacture difficulty of magnetic core yet, raises the cost.Therefore, its higher limit should be in following ranges:
tanα<=3M／2L----(B)
If want reduce Ferromagnetic Impurities not magnetic or zero magnetic field obtain better effect, do not increase the manufacturing cost of magnetic core yet, the α angle of inclination also can be chosen in following scope so:
3M／8L<=tanα<=5M/4L----(C)
Perhaps
M／2L<=tanα<=M/L----(D)
In order to allow bar magnet can obtain the homogeneous effect at the absorption Ferromagnetic Impurities, magnetic core should radially become symmetrical with bar magnet.If magnetic core is not when radially becoming full symmetric with bar magnet, should keep homogeneous to a certain degree yet, its degree of deviation is not more than in 10 degree, preferably can be controlled at 5 degree with interior ideal.In this angle, the manufacturing of magnetic core is also than being easier to.
Core material is not generally done and is particularly limited.Can be namely the rare earth permanent-magnetic materials such as neodymium iron boron, SmCo magnet, can be also Ferrite, the permanent-magnet materials such as alnico magnet.Also not doing being particularly limited for yoke, can be SUS400 series stainless steel material.As for the nonmagnetic substance of end, namely can use SUS304, also can make of the stainless steel material of the models such as SUS316.
For the shape of the radially normal section of bar magnet, generally do not do being particularly limited yet.Can be namely circular, can be also polygonal, such as, be equilateral triangle, positive quadrangle, positive pentagon, regular hexagon etc. can.Can also be out of shape circular and polygon according to the transverse and longitudinal direction, such as being oval or being out of shape polygonal etc.Can also be also passable by circular arc and rectilinear combination.
In the passage that the material that is comprising Ferromagnetic Impurities falls naturally by gravity, arrange according to patent document 2 and record and narrate such tear type permanent magnet bar magnet, because it is circular that the arc tip on its top is point, so be difficult for being detained in the above after material falls, do not affect magnetism intensity, so its de-ferrous effect is best for it.
The cross sectional shape of above-mentioned tear type permanent magnet bar magnet should be extended to by the two-end-point of arc sections and arc sections with the intersection point of the symmetry axis of arc sections or consist of at the leg-of-mutton two parts of the class that forms near the symmetry axis intersection point.
The shape of above-mentioned circular arc, a circular part preferably is that an oval-shaped part is also passable if not the words of circle.Exactly and completely circle or elliptical shape have some well-behaved from, be for example some convex-concave, as long as it well-behavedly is not more than 20% of arc radius from degree.Certainly preferably can be controlled in 10%, can be controlled at 5% with interior ideal.
Extend from the two-end-point of circular arc to the circular arc symmetry axis with straight line as well, the shape of its formation should be the class triangle.But if not straight line, that is to say with straight line portion is well-behaved a little also can allow from some convexs or concavity occurring.But the depth of these convex-concaves and height should be not more than 20% of arc radius.Certainly preferably can be controlled in 10%, can be controlled at 5% with interior ideal.
The two-end-point of above-mentioned arc sections extends to the intersection point of the symmetry axis of arc sections or at the class triangle that forms near the symmetry axis intersection point, and its intersection point is point circle shape preferably, should suitably carry out the deburring chamfering when making magnetic core.The shape at its point circle shape angle, it is fixed to come according to the big or small thickness of bar magnet, but R is that (rounded corner in 2～5mm) scopes is for well for 1～10mm.
The present utility model, the permanent magnet bar magnet of the inclination yoke arrangement that uses does not wrap overcoat and can use yet, but in order to prevent coming off and the breakage of magnet of Ferromagnetic Impurities, the outside preferably uses the stainless steel sleeve pipe of non-magnet material with its outsourcing.
For the use field of the permanent magnet bar magnet of inclination yoke arrangement, the utility model is not done and is particularly limited.Namely the deironing of the industries such as food, dairy products, beverage, pharmacy, environmental protection, plastics, pottery, chemical industry, rubber, pigment, dyestuff, building materials, feed, fertilizer, mining industry be can be applicable to, raw material, finished product, the semi-finished product such as various powderies, graininess, liquid slurry also are applicable to.Can remove the Ferromagnetic Impurities that contains in these raw materials, finished product, semi-finished product on the one hand, can also carry out to the small magnetisable material that is mixed in liquid, coccoid, gas, fluid magnetic separation simultaneously and separate.
Configure the permanent magnet bar magnet of inclination yoke arrangement of the present invention, should meet at right angles with the handled object moving direction, best for it with 90 degree, but some deflection slightly, as long as be no more than 20 degree.Certainly preferably can be controlled in 10 degree, can be controlled at 5 degree with interior ideal.
To also have, to distribute in order being consistent with radial symmetric two sides magnetic force, radial section should become level with the handled object moving direction, but some deflection slightly, as long as be no more than 20 degree.Certainly preferably can be controlled in 10 degree, can be controlled at 5 degree with interior ideal.
Embodiment
Below, several embodiment are described.Certainly, embodiment of the present utility model is not limited only to this several examples.But so long as according to aim of the present utility model, even it is also passable that utility model is carried out suitable change.
Fig. 1 is the right-angle cross-section figure radially according to the permanent magnet bar magnet of the configuration inclination yoke arrangement of the utility model manufacturing.The right-angle cross-section figure of this bar magnet 1, its contour shape is the same with original form bar magnet shown in Figure 8, is all circular.
This bar magnet 1 comprises the magnetic core 2 and the yoke 3 that radially configure alternately with bar magnet.Separately form the structure of magnetic core yoke magnetic core between magnetic core and magnetic core with yoke, the pole orientation on yoke both sides should be consistent.
In the present embodiment, except the yoke of two ends of bar magnet, beyond namely yoke 32 radially met at right angles with bar magnet, all yokes 31 all became skewed, and were tilted the magnetic core 23 that yoke clips and also all tilt with the same angle of inclination yoke.The radial section shape of the magnetic core of two ends of bar magnet can be the trapezoidal or right angled triangle that a vertical angle angle is arranged.Perhaps as two ends of Fig. 1, without yoke 31 and magnetic core 25, directly its shape is made the trapezoidal or right angled triangle at a vertical angle angle also passable.
According to shape shown in Figure 1, magnetic core 2 and yoke 3 and two ends 4 should be assembled into integrally formed bar magnet.For assembling all-in-one-piece means, be not particularly limited, as Fig. 1, punch and use connecting axle 5 that it is connected at the pars intermedia of magnetic core and yoke, and making male thread 51 at the two ends of connecting axle 5, then the box thread with end 4 joins, the formation one.
(effect)
When the permanent magnet bar magnet 1 that possesses configuration inclination yoke arrangement of the above embodiments 1, be arranged in the mobile path that contains the Ferromagnetic Impurities material, and meet at right angles with the moving direction of Ferromagnetic Impurities material, and when yoke and radial parallel, material can firmly adsorb the ferromagnetic type impurity that contains in material through bar magnet, removes irony.About the deironing principle of the deironing magnetic plant of configuration the utility model bar magnet, carry out following explanation with reference to Fig. 3.
The permanent magnet bar magnet of the said configuration inclination of the utility model yoke arrangement, its magnetic force radially distributes, and is the same with the bar magnet 8 that used in the past, and the position of yoke 3 is the strongest, and is the most weak for it by the centre position of the magnetic core 23 of two yoke double teams.But, the permanent magnet bar magnet of said inclination yoke arrangement of the present utility model, due to its yoke and magnetic core (removing the yoke at both ends) all by with radially become tilted configuration, therefore and the bar magnet 8 that in the past used fully different.That is, the strongest part of the radial magnetic force of bar magnet periphery, wherein must will meet with magnetic field by some Ferromagnetic Impurities Q when object being treated moves along inclination yoke 31 tilt distribution.Therefore, as the sliding fallen Ferromagnetic Impurities Q from the top, when the radial magnetic force through bar magnet 1 distributes weak position, continue to glide owing to not being magnetized, at this moment will be through the radial magnetic force of the bar magnet 1 strong position that distribute, Ferromagnetic Impurities Q is magnetized, and is adsorbed firmly by bar magnet, therefore can not send the problem in existing dead band or zero magnetic field again.
If explain with the magnetic line of force, because the yoke magnetic core is tilted configuration, therefore the position of the magnetic line of force of every NS utmost point will go out to think skew mutually, article one, the dead-center position of the magnetic line of force will be covered by another magnetic line of force, so at the magnetic line of force zero point that can not occur, therefore can not send again the problem in existing dead band or zero magnetic field as arranged perpendicular yoke magnetic core.
Besides, the yoke of the bar magnet that in the past used radially deironing magnetic field fabric width only be equal to yoke fabric width K, and the yoke deironing magnetic field fabric width of the permanent magnet bar magnet of configuration inclination yoke arrangement of the present utility model can reach K+L tan α, than large L tan α in the past.(L is perpendicular to bar magnet diameter of section radially, and α is that yoke favours angle radially)
Also have, after Ferromagnetic Impurities Q was magnetized along the periphery (with radial skew) of the strongest yoke 3 of magnetic force, these magnetizable materials can not hinder flowing of handled object.For this reason, the permanent magnet bar magnet 3 of the said configuration inclination of the utility model yoke arrangement is compared with the bar magnet 8 that uses in the past, and the amount that comprises magnetizable material in object being treated will greatly reduce.
The Ferromagnetic Impurities that adheres to when the bar magnet periphery surpasses when quantitative, should interrupt deironing, loads onto remover in the bar magnet outside by sliding fit, and cleaning sticks to the Ferromagnetic Impurities that the bar magnet periphery adheres to.At this moment, because of the Ferromagnetic Impurities that is magnetized with radially keep the angle of inclination, so when continuing slip with radially rectangular remover by sliding fit, the Ferromagnetic Impurities that bar magnet adheres to is only many at one or two place, and along with the slip of remover is moved to the bar magnet periphery gradually.Therefore, press sliding fit when remover and install, when cleaning Ferromagnetic Impurities by slip, stick-slip and oscillation phenomenon do not occur in its not change of driving force, can clean Ferromagnetic Impurities in higher efficiency.
Fig. 4 and Fig. 5 have represented the tear type permanent magnet bar magnet according to the configuration inclination yoke arrangement of the utility model manufacturing.Fig. 4 is the longitudinal section view of its bar magnet, and Fig. 5 is radially right-angle cross-section shape of this bar magnet.
As shown in Figure 5, the cross sectional shape of this bar magnet 1 is tear-drop shape.According to the magnetic core 2 that radially connects, yoke 3 and end 4 all become tear-drop shape.Magnetic core 2 and yoke 3 and two ends 4 are by composing in series integrally formed bar magnet.In the present embodiment, punch and use connecting axle 5 with its series connection at the pars intermedia of magnetic core and yoke, and making male thread 51 at an end of connecting axle 5, then the box thread with an end of end 4 coils button mutually; And at an other end, will carry out firm welding between connecting axle 5 and 4 holes, end, form one.
In order to integrate magnetic core 2, can punch therebetween and with connecting axle, it be composed in series one in the position of the tear type profile of yoke 3 and two ends 4.Polygonal cross section shape as hexagonal is arranged again, can open key slot one by its position as slotting key, perhaps adopt some other way.If the bottom of connecting axle 5 ends 53 is flat, the bottom area that can increase magnetic core 23 can increase magnetic force again, the impact that the magnetic force of yoke periphery is distributed and also can produce.
2 li of embodiment, in order to prevent the magnetic core 2 with connecting axle 5 serial connections, the magnetic of yoke 3 and two ends 4 comes off or the magnetic core breakage, should wrap in its outside a sleeve pipe 7.For the material of sleeve pipe 7 and be not particularly limited, for example SUS304 corrosion resistant plate or the titanium steel plate of thick 0.3mm～0.8mm perhaps use the resin can.
2 li of embodiment, the cross section is the shape of radial section of the magnetic core of tear type, should be two lines of extension of the two-end-point 12d of the 12a of arc sections and arc sections 12a, joins in circular arc symmetry axis 12c axis, or join near 14a symmetry axis, this part sum of the 13a of composition.
Two straight lines that draw the 13a that prolongs from the end points 12d of this circular arc preferably with arc tangentially state.Perhaps the angle for tangent line can be controlled in 10 degree, and ± 5 degree are with interior ideal.Article two, the β of the angle of straight line should be in 20～80 degree, (30～70 degree are good for it, and 40～60 degree are best for it).The γ of arc angle should be in 200～260 degree, (210～250 degree are good for it, and 220～240 degree are best for it).The 13a that two straight lines press from both sides, if can be symmetrical best for it with circular arc 12c, some departs from also and allows slightly.(for example, 14a is to the distance of symmetry axis 12c, if be controlled at circular arc 12a radius 10% with interior good for it, 5% with interior best for it).The cross part of two straight lines should suitably carry out chamfering, its its make the drift angle 14b of point circle shape.(drift angle is made flat also passable, but it should be 14b for the nearest point of symmetry axis 14).
In the cross section of the tear type permanent magnet bar magnet of the present embodiment, the magnetic force of its periphery yoke 3 distributes, and is the most weak for it at its top 14, along with 13 moving magnetic force to arc sections 12 and strengthen gradually from the inclined-plane, and 12 the strongest for it in the circular arc bottom.So when Ferromagnetic Impurities fell, along down landing of yoke 13, major part all was adsorbed to arc sections 12, particularly circular arc bottom 12 is maximum.And the Ferromagnetic Impurities that is magnetized all will be attracted on bar magnet firmly, can not taken away by continuous fallen material.
(effect)
The tear type permanent magnet bar magnet 1 of the configuration inclination yoke arrangement of making according to the utility model that Fig. 4 and Fig. 5 are represented, according to horizontal direction and sharp-blunt point up, deironing principle and effect when being arranged in the path that naturally falls by gravity that contains the Ferromagnetic Impurities material are carried out following explanation with reference to Fig. 3.(must be noted that as different from Example 1,2 li of embodiment, yoke is not exposed by sleeve pipe 7 jackets, and the α angle of yoke 3 is greater.)
The tear type permanent magnet bar magnet of the said inclination yoke of the utility model arrangement, the same with the tear type permanent magnet bar magnet that used in the past, circular because its top is point, do not form a mountain shape above therefore fallen material can not be deposited in.Moreover the inclination angle design on tear type inclined-plane is larger than angle of repose, therefore can effectively solve the problem of accumulation.For this reason, the tear type permanent magnet bar magnet of yoke arrangement, the same with the tear type permanent magnet bar magnet that used in the past, can not be subject to the interference of deposit during deironing.
The tear type permanent magnet bar magnet 1 of the inclination yoke arrangement that embodiment 2 introduces, its magnetic force radially distributes, and is the same with the tear type permanent magnet bar magnet 9 that used in the past, and the position of yoke 3 is the strongest, and is the most weak for it by the centre position of the magnetic core 23 of two yoke double teams.And the magnetic force at its top and column type permanent magnet bar magnet are than being much smaller again.Yet, the tear type permanent magnet bar magnet 1 of the inclination yoke arrangement that embodiment 2 introduces, the two sides radially of its magnetic core 23 is inclined-planes, yoke is also by tilted configuration, therefore with tear type permanent magnet bar magnet 9 differences of using in the past, when the strongest part of the radial magnetic force of bar magnet periphery moves from the top to the bottom, tilt along with the inclination yoke, therefore when object being treated moves, wherein must to intersect with magnetic field by some Ferromagnetic Impurities Q.
Therefore, as the sliding fallen Ferromagnetic Impurities Q from the top, distribute weak position when falling in the radial magnetic force through bar magnet top 14, continue owing to not being magnetized along bar magnet 1 surface downslide, the radial magnetic force that will the pass through strong position that distributes, Ferromagnetic Impurities Q will be magnetized, and be adsorbed by bar magnet firmly.That is to say, the yoke of the tear type permanent magnet bar magnet that in the past used radially deironing magnetic field fabric width only is equal to yoke fabric width K, and the yoke of the permanent magnet bar magnet of the said configuration inclination of the utility model yoke arrangement deironing magnetic field fabric width radially can reach K+Ltan α.And two contiguous deironing magnetic force width connect mutually friendship, dead band or magnetic field, district therefore can not occur.
Also have, distribute along the magnetic force of bar magnet 1 yoke 3, the same with the tear type permanent magnet bar magnet 9 that used in the past, the most weak for it at its top 14, along with 13 moving magnetic force to arc sections 12 and strengthen gradually from the inclined-plane, 12 the strongest for it bottom circular arc.So when Ferromagnetic Impurities fell, along down landing of yoke 13, major part all was adsorbed to arc sections 12, particularly circular arc bottom 12 is maximum.Like this, the Ferromagnetic Impurities that is magnetized all will be attracted on bar magnet firmly, can not taken away by continuous fallen material.For this reason, contain the treating capacity again of ferromagnetic row impurity material, more in the past than few many of the bar magnet 8,9 that used.
Also have, due to yoke with radially become skewed, therefore increased the surface area of yoke, so can adsorb more ferromagnetic type impurity than the tear type permanent magnet bar magnet of use in the past, de-ferrous effect is better.
The Ferromagnetic Impurities that adheres to when the bar magnet periphery surpasses when quantitative, should interrupt deironing, loads onto remover in the bar magnet outside by sliding fit, and cleaning sticks to the Ferromagnetic Impurities that the bar magnet periphery adheres to.Its action principle is identical with embodiment 1.
More than when the coccoid that naturally falls by gravity is carried out deironing, according to the tear type permanent magnet bar magnet of the illustrative inclination yoke of embodiment 2 arrangement, situation about arranging up according to level and its point circle section.The utility model certainly is not only limited to the deironing of powdered substance and processes, and processing for the deironing of unclassified stores also can be practical.For example, just vertical with becoming of liquid flow when liquid object is carried out deironing and magnetic separation, and point circle section up, resistance that namely can less liquid flow also can deadband eliminating or the appearance in zero magnetic field.
Fig. 6 means the end fastening structure of tear type permanent magnet bar magnet of the configuration inclination yoke arrangement of the utility model embodiment 3.Wherein, I is longitudinal section view, and II is the cross section of I A-A position.
2 li of above embodiment 1 and embodiment, for fastening magnetic core 2 and yoke 3, punch and use connecting axle 5 with its series connection at the pars intermedia of magnetic core 2 and yoke 3, and make male thread 51 at the two ends of connecting axle 5, then the box thread with end 4 joins, and forms one.And 3 li of embodiment, use cock (tap) that yoke 33 is fastening.
In the present embodiment, along bar magnet radially alternately between the magnetic core 2 of configuration with yoke 3 separately, form magnetic core yoke magnetic core, the pole orientation of the magnetic core on yoke both sides is (with reference to Fig. 1,4,7,9) unanimously.Due to two adjacent magnetic core homopolar-repulsions, therefore want to become sectional view the magnetic core monomer 23,25 of tear type and yoke 31,32 grades tightly to fix, shape that just should sleeve pipe is made and magnetic core, and the yoke profile is identical.Then, magnetic core monomer 23,25 is intersected with yoke 31,32 grades insert sleeve pipe 7, and connect with connecting axle 5, and in the male thread 51 of connecting axle 5 and the cock box thread fastening of yoke 33, just can be tightly connected, form one.Because with the yoke 33 of cock box thread, because rotatable, for two plush coppers with rotating rod match, two shrinkage pools 331 have been configured again on yoke.But, these two shrinkage pools can run through yoke 33, configure simultaneously three shrinkage pools also passable, perhaps do not configure shrinkage pool, open several roads translot also passable on the surface of yoke.The purpose of configuration shrinkage pool is mainly to fill in yoke 33 in order to screw, as long as can reach this purpose, takes which type of structure can.
Above box thread by male thread 51 and the yoke 33 of assembling cock mutually screws and carries out fastening structure, and is only in an end setting of bar magnet, firm with welding W between connecting axle 5 and 4 holes, end just as shown in Figure 4 at the other end, forms one.Also have, cock yoke 33 and right angle yoke are configured in respectively the two ends of bar magnet, can prevent that magnetic force from fleeing to other directions, and can strengthen the magnetic force of bar magnet periphery, can obtain the effect of killing two birds with one stone.
The longitudinal end of reinforcing all-in-one-piece magnetic core monomer 23,25 and yoke 31,32,33 grades one connects with the end 4 of being connected cock with male thread 51, then injects sleeve pipe 7.End 4, namely in the W position that Fig. 6 represents, weld at sleeve pipe 7 and connecting axle 51 male thread places.
3 li of the present embodiment, the magnetic deironing equipment of the tear type permanent magnet bar magnet of inclination yoke arrangement and this bar magnet of configuration, can need the object of deironing to carry out deironing to all, simultaneously also can need to carry out the object that magnetic separation separates with magnetic to all and carry out the magnetic separation separation.As its object, so long as contain ferromagnetic shape impurity or contain powdered substance, granular substance, the pulp object of magnetisable material, liquid, gas, the gas-liquid mixed object, dirty solution sticks together fluid all applicable.
Claims (7)
1. the permanent magnet bar magnet of inclination yoke arrangement is characterized in that: radially the magnetic core of configuration and the part that has at least of yoke radially become tilted configuration with bar magnet alternately with bar magnet.
2. the permanent magnet bar magnet of inclination yoke arrangement according to claim 1 is characterized in that: inclined plane wherein and the tilt angle alpha of radial section should be in following scopes:
3M／8L≤tanα≤5M/4L
L wherein is perpendicular to bar magnet diameter of section radially, and M removes bar magnet two ends core length radially.
3. the permanent magnet bar magnet of inclination yoke arrangement according to claim 1, it is characterized in that: the arrangement of described magnetic core and yoke is tilted configuration.
4. the permanent magnet bar magnet of inclination yoke arrangement according to claim 1 is characterized in that: the shape of described bar magnet vertical cross-section radially can be circular, oval, polygonal or the tear drop shape radially symmetrical with bar magnet.
5. the permanent magnet bar magnet of inclination yoke arrangement according to claim 1 is characterized in that: as the magnetic core and the yoke that form the bar magnet monomer, heart section perforate therein connects with connecting axle, and fixes with bolt at the two ends of axle.
6. magnetic iron-removal equipment, it is characterized in that: it disposes the permanent magnet bar magnet of the described inclination yoke of arbitrary claim arrangement in claim 1 to 5, radially should the falling direction with the gravity of object and meet at right angles of permanent magnet bar magnet, the cross section of permanent magnet bar magnet should with object to fall direction parallel.
7. magnetic iron-removal equipment according to claim 6, it is characterized in that: the cross sectional shape of described permanent magnet bar magnet is tear-drop shape, the permanent magnet bar magnet should fall direction according to handled object gravity and meet at right angles and be configured, and the covering of the fan major part of the circular arc of permanent magnet bar magnet should be down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220412174 CN203018189U (en) | 2012-08-17 | 2012-08-17 | Permanent magnet magnetic rod with inclined magnet yoke structure and magnetic iron removing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220412174 CN203018189U (en) | 2012-08-17 | 2012-08-17 | Permanent magnet magnetic rod with inclined magnet yoke structure and magnetic iron removing device |
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| CN203018189U true CN203018189U (en) | 2013-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220412174 Expired - Lifetime CN203018189U (en) | 2012-08-17 | 2012-08-17 | Permanent magnet magnetic rod with inclined magnet yoke structure and magnetic iron removing device |
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| CN103657846A (en) * | 2013-12-20 | 2014-03-26 | 廖明勇 | Magnetic rod with movable magnets and iron removal device applying magnetic rod |
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| CN111699045A (en) * | 2018-02-07 | 2020-09-22 | 株式会社Ｊｍｃ | Bar-shaped magnet and magnetic foreign matter removing device |
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| CN113976311A (en) * | 2021-09-30 | 2022-01-28 | 宁波西磁磁业发展股份有限公司 | Iron-removing magnetic bar continuous magnetic circuit structure for lithium battery |
| CN116020656A (en) * | 2022-12-30 | 2023-04-28 | 辽宁润兴新材料有限公司 | Impurity removing device for processing coated asphalt material |
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