CN1652641A - Heater of metal cylinder - Google Patents
Heater of metal cylinder Download PDFInfo
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- CN1652641A CN1652641A CNA2004100914451A CN200410091445A CN1652641A CN 1652641 A CN1652641 A CN 1652641A CN A2004100914451 A CNA2004100914451 A CN A2004100914451A CN 200410091445 A CN200410091445 A CN 200410091445A CN 1652641 A CN1652641 A CN 1652641A
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- metal cylinder
- aforementioned
- heater
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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Abstract
To form each receiving roller with an inexpensive metal material easy to purchase and to compose a heating device with a structure capable of preventing spark between workpiece receiving rollers for providing long-term durability, in a heating device of a metal tube body for induction-heating the total length of a workpiece while rotatably supporting it with two receiving rollers. This metal tube body heating device 40 is equipped with: the receiving rollers 50 and 60 for mounting the metal tube body 10 in a manner capable of horizontally and rotatably transmitting it; roller driving devices 25-26 for rotatably driving them by pivoting them; and induction heating devices 21-22 for induction-heating the total length of the metal tube body 10. The rollers 50 and 60 are composed of: metallic core members 51 and 61; a plurality of metallic short sleeves 52 and 62 each having an axially split form; and spacers 53 and 63 serving as mutual insulation thereof.
Description
Technical field
The present invention relates to one side and make the metal cylinder axon rotate the heater of the metal cylinder that simultaneously heats and reach a high temperature, in detail, relate to the heater of the metal cylinder that heats with induction heating mode.
The heater of such metal cylinder can one side heating of metal cylindrical shell simultaneously makes centrifugal action accommodate thing in metal cylinder, is very easily when for example processing the self-fluxing alloy lining on the inner peripheral surface of metal cylinder.
Background technology
Known have when applying the deposited lining of self-fluxing alloy for the metal cylinder inner surface, the self-fluxing alloy powder of in metal cylinder, packing into, one side make the rotation of metal cylinder axon, promptly one side to make metal cylinder be that center rotation, one side heat the operational method of a so-called mode (mode once) that once makes the powder smelting in the metal cylinder and the heater (for example with reference to patent documentation 1) of metal cylinder with the axis.This device possesses the barrel support whirligig that metal cylinder is pivoted at high speed, the induction heating equipment of the metal cylinder during heating is rotated with expression of first degree, for the sensing element of expression of first degree heating usefulness, adopted on the total length of metal cylinder coil to the face heating shape of the minizone induction heating of the circumferencial direction of metal cylinder.
For the sensing element of the total length of induction heating metal cylinder, the induction coil of saddle type is also commonly used mostly, the major part of having showed the metal cylinder heater 20 of having equipped such sensing element 22 in Fig. 9 (a).In this sensing element 22, comprise two parts that extend side by side in the axial direction at the cardinal principle total length upper edge of metal cylinder 10 metal cylinder 10.In addition, the barrel support whirligig of metal cylinder heater 20 is a major part with illustrated two backing rolls 23,24, and the roll driving apparatus pivotal axis that does not show with figure supports and these rollers 23,24 of rotation driving.
Backing roll 23,24, with can carry as the metal cylinder 10 of heating target like that, all with horizontal state and keep suitable distance ground to be provided with abreast, when making when axially consistently having carried metal cylinder 10, can level and rotatable transmission ground support this metal cylinder 10.And, when rotation drives the either or both of backing roll 23,24, metal cylinder 10 is rotated with desirable velocity axis by outer peripheral face contact rotation each other.
When one side be carried on metal cylinder 10 on such metal cylinder heater 20 and make it axle rotation, when one side is carried out the high-frequency energising on sensing element 22, will on the outer peripheral face (with reference to Fig. 9 (b)) of metal cylinder 10, induce an induced current 11 of saddle type substantially, heated this circuit part, but because metal cylinder 10 is in axle rotation at full speed, so metal cylinder 10 full periderms similarly heat substantially.Under the situation of the lining operation of self-fluxing alloy,, be 30m/s with centrifugal force (acceleration) for the homogenizing of the powder bed of self-fluxing alloy
2The above speed of ( 3G, wherein G is an acceleration of gravity) or its makes metal cylinder 10 rotations, metal cylinder 10 is heated to the deposited high temperature of self-fluxing alloy till.
In the past, for backing roll 23,24, employing be the roller of non magnetic stainless steel (austenitic steel) system.Although under the situation of induction heating, if possible, or wish to adopt the roller that for example constitutes, but in the scope of insulating material and non-conductor, also do not have to find to withstand the suitable material that the contact under is at a high speed rotated for a long time by the such electrical insulator of aluminium oxide.In addition, aluminium oxide etc. are except the preparation and processing difficulties and costliness of the parts of desired size, and making also needs for a long time.Relative therewith, stainless steel is because of being rich in toughness and damaged (slight crack) be difficult for to take place and peeling off etc., therefore except the long-term contact of withstanding cruelty was rotated, the preparation of the parts of desired size (supply) and handling ease and low price can also realize that short-term replenishes the supply.
Patent documentation 1: the spy opens the 2003-193262 communique
Summary of the invention
But, be under the situation of stainless steel at backing roll 23,24, because stainless steel is the good conductor of electricity, so when high-frequency is switched on, on backing roll 23,24, also can induce secondary induced current 12 (with reference to Fig. 9 (c)).Secondary induced current 12 is the both ends via metal cylinder 10, and the backing roll 23,24 of flowing through has heated backing roll 23,24, thus indirect deputy electric current heat effect, less important that plays metal cylinder 10.Thereby when following a swivel bearing roller 23,24, metal cylinder 10 that vibration etc. takes place to have destroyed backing roll 23,24 and contacting of metal cylinder 10 etc., continue the induced electromotive force of circulation of secondary induced current 12 when strong, for example on the plane of rotation end everywhere 13,14,15,16 at the two ends of metal cylinder 10, just produce the electric spark that causes because of discharge.
In case the generation electric spark will form the electric spark trace on the outer peripheral face of backing roll 23,24 and metal cylinder 10.And if produce an electric spark trace, then the loose contact at this place just can for good and all stay, and then can produce electric spark in large quantities.So, the quality of metal cylinder 10 can suffer damage, and the life-span of backing roll 23,24 also shortens.
Therefore, in backing roll 23,24 in the past, long-term this advantage of durability such as the toughness that stainless steel had is not utilized fully, has only utilized low price and short-term to replenish this advantage easily.
Therefore, in order to utilize stainless long-term durability, pay electrical insulating property for the backing roll 23,24 of stainless steel, just form insulation-coated layer, and manufactured experimently and be equipped with the metal cylinder heater 30 (with reference to Figure 10 (a)) that this has the backing roll 33,34 of insulation-coated layer by the aluminium oxide spraying plating and on its outer peripheral face.In this case, induced current 11 of metal cylinder 10 and identical (with reference to Fig. 9 (b)) in the past though only flow through, but because with induced current metal cylinder 10 and backing roll 33,34 electric insulations, therefore the secondary induced current 12 (with reference to Figure 10 (b)) that induces by backing roll 33,34 just backing roll 33,34 separately in circulation and resting in each roller.So just prevented electric spark.
But,, so on insulation-coated layer, easily produce breakage and peel off owing to high speed rotating under heating environment, and, when the aggravation of this situation, still can destroy electric insulation eventually and produce discharge, in case the generation electric spark, breakage etc. just enlarge, and quicken the loss of insulation-coated layer.So, will with do not have insulation-coated when layer the same, 13,14,15,16 etc. locate frequently to produce electric spark (with reference to Figure 10 (c)) in the plane of rotation end, thereby exhaust the life-span of backing roll 33,34.Therefore, can not realize surpassing the life-span prolongation of the such degree of insulation-coated layer operating cost that increases.
Therefore, in order to fully utilize the advantage that stainless steel and other metal materials has towards roller, promptly, in order outside low price and additional easy this advantage of short-term, also to make full use of this advantage of long-term durability, when the backing roll that is made of metal material is paid electrical insulating property, the research of further working hard on the additional mode of its concrete structure and seal has become technical problem.
The heater of metal cylinder of the present invention (first scheme of the present invention), find out in order to solve such problem, it is to possess one side to make the backing roll that rotates two array structures that simultaneously support as the metal cylinder of heating target, rotation drives the roll driving apparatus of this backing roll, with with the aforementioned metal cylindrical shell total length heater of the metal cylinder of the induction heating equipment of induction heating simultaneously, it is characterized in that, above-mentioned abutment roller has the structure that is embedded with metal sleeve pipe on metal core components, this sleeve pipe is divided into the short sleeve of a plurality of monomers, gapped configuration to be set each other by setting-in with the state of aforementioned core components electric insulation and at short sleeve.
In addition, the heater of metal cylinder of the present invention (alternative plan of the present invention), it is the further qualification of the heater of the above-mentioned described metal cylinder of first scheme of the present invention, wherein, making the short sleeve of aforementioned a plurality of monomers and the device of aforementioned core components electric insulation, is the coating of the real electrical insulating property that adds on the inner peripheral surface of the outer peripheral face of aforementioned core components or aforementioned short sleeve; Aforementioned short sleeve with this coating between middle and fastened being inlaid on the aforementioned core components.
And then, the heater of metal cylinder of the present invention (third party's case of the present invention), be the further qualification of the heater of the above-mentioned described metal cylinder of first scheme of the present invention, wherein, the inner peripheral surface of aforementioned short sleeve is provided with the keyway of the total length that spreads all over this short sleeve; In addition, planted key member on the outer peripheral face of aforementioned core components, aforementioned short sleeve is fixed at Zhou Fangxiang with respect to aforementioned core components by making the previous key parts and being projected in the aforementioned keyway; And then, be engaged in the liner that is configured in short sleeve electrical insulating property each other in the aforementioned keyway of aforementioned short sleeve by key, keep short sleeve aforementioned gap each other.
In addition, the heater of metal cylinder of the present invention (cubic case of the present invention), be the further qualification of the heater of the above-mentioned described metal cylinder of third party's case of the present invention, wherein, be equipped with in the end of aforementioned core components and be used to the backstop that prevents that aforementioned short sleeve from coming off.
In addition, the heater of metal cylinder of the present invention (the 5th scheme of the present invention) is the further qualification of the heater of the above-mentioned described metal cylinder of first scheme of the present invention, and wherein, aforementioned sleeve pipe is a nonmagnetic metal system.
In addition, the heater of metal cylinder of the present invention (the 6th scheme of the present invention), be the further qualification of the heater of above-mentioned first scheme of the present invention～described metal cylinder of the 5th scheme of the present invention, wherein, aforementioned roll driving apparatus is by insulation against ground.
In addition, the heater of metal cylinder of the present invention (the 7th scheme of the present invention), it is the further qualification of the heater of the above-mentioned described metal cylinder of the 6th scheme of the present invention, wherein, on aforementioned roll driving apparatus, the intermediate bearing portion of the pars intermedia of the bearings at both ends portion of the end that having pivots supports aforementioned core components and the aforementioned core components of support that pivots.
In the heater (first scheme of the present invention) of such metal cylinder of the present invention, the barrel support whirligig that metal cylinder is possessed backing roll and roll driving apparatus flatly supports, and then is carried out the axle rotation.In addition, spread all over endlong by induction heating equipment and heat.Thus, can simultaneously metal cylinder be heated simultaneously one side and make centrifugal action on metal cylinder, for example can on the inner peripheral surface of metal cylinder, implement the self-fluxing alloy lining validly.
And, by both also axially having been cut apart and made between dividing body along radial direction, backing roll insulated each other, promptly, backing roll is divided into the core components of roll driving apparatus side and the sleeve pipe on metal cylinder side along radial direction, simultaneously this sleeve pipe further is divided into several short sleeves in the axial direction, on this basis, by carrying out the mutually insulated of each short sleeve, the secondary induced current that will induce on backing roll blocks with the unit of short sleeve.Then, since in accompanying rotation and metal cylinder and backing roll contact destroyed wait the time induced electromotive force that produces also cut apart, thereby make each all be weakened, therefore, be difficult to the generation except discharging, also be easy to eliminate even if produced discharge, therefore sharply reduced the generation of undesirable electric spark.
Therefore, make, also do not have the undesirable condition that causes because of discharge, the insulating element as concrete seal need not be configured on the contact rotary part even if will overlap effective metal material.And,, also can save the life-span of backing roll from damage if make short sleeve with the metal material of easily selecting the parts that have both the advantage cheap, that short-term is replenished easily, long-term patience is such.
Thereby, according to this invention, can realize not only cheap but also be suitable for the heater of the long-term metal cylinder that uses.
In addition, in the heater (alternative plan of the present invention) of metal cylinder of the present invention, by on the inner peripheral surface of the outer peripheral face of core components or short sleeve, forming insulation-coated layer, then with short sleeve from the core components electric insulation, simultaneously with above-mentioned coating between middle and be inlaid on the core components short sleeve is fastening, thus, realized the arranged coaxial with respect to core components of short sleeve easily and reliably, the concentricity of necessary height when having guaranteed high speed rotating on the outer peripheral face of the short sleeve behind setting-in, roundness, axiality has been guaranteed the function of original roller at an easy rate.And in this case, the insulation-coated layer of core components is owing to outer embedding tube, thereby therefore discord metal cylinder contact rotation also can be kept for insulation-coated layer chronically.Above-mentioned fastening setting-in, by sleeve pipe is embedded in outward on the core components with interference fit, can be easily and the insulation-coated layer ground that do not damage core components with on the short sleeve setting-in.And because sleeve pipe is divided into short sleeve, so the interference fit of sleeve pipe is easier, and it is lower that the material workpiece in the time of maintenance can also being changed takes inhibition ground.
And then, in the heater (third party's case of the present invention) of metal cylinder of the present invention, insert the insulation liner by between the short sleeve end, being situated between, even if for example because of unusual heat up to wait make that thereby short sleeve is loosening to be become can be along the axially movable state of core components the time, also can keep the mutual electric insulation of short sleeve reliably.In addition, by planting in the key member intercalation on the outer peripheral face of core components in the keyway of the inner peripheral surface of sleeve pipe, even if for example because of unusual heat up wait thereby the loosening frictional force on Zhou Fangxiang with core components of sleeve pipe died down or disappear in, also can prevent the idle running of core components reliably.And,, therefore do not have key member to hinder the situation of the interference fit of sleeve pipe because keyway is long and the two ends of sleeve pipe.
And then, in the heater (cubic case of the present invention) of metal cylinder of the present invention, owing on the both ends of core components, be equipped with the backstop that comes off that is used to prevent short sleeve, even if the contingency that above-mentioned unusual intensification therefore occurs feeds through to the situation of the end of backing roll, also can suppress above-mentioned coming off, even continuous cropping is also being suppressed from exposing of core components end of the short sleeve that begins to move most in the action of coming off, and makes it for no reason at all in coming off and the highly undesirable state of affairs such as thing followed trouble.
In addition, in the heater (the 5th scheme of the present invention) of metal cylinder of the present invention, because short sleeve is made as non magnetic (non-ferromagnetism) metallic, therefore when induction heating the faradic penetration depth that induces on the short sleeve (near the more little concentration degree of index/penetration depth of the concentration degree the magnetic flux input face of induced current and then the heat input (going into Hot) that caused by it is big more), for the penetration depth of ferromagnetism metal tens of～hundreds of times, therefore can reduce in the thickness range of short sleeve hot input variable (promptly, the hot input density of short sleeve), thus can suppress the intensification of short sleeve.When short sleeve being made as the such ferromagnetism metallic of carbon steel, owing to when surpassing the temperature of magnetic transition temperature, can become non magnetic, so inhibition of above-mentioned heat input, though be till the stage midway of the heating process of metal cylinder, but the intensification till this magnetic transition temperature is poor, goes far towards the inhibition of the arrival temperature in the heating process.Its result, for example need not consider in order as being made as the metal situation of ferromagnetism, above-mentioned arrival temperature to be converged in the wall wall thickening that makes short sleeve in the allowable limit, and can freely select etc., become the scheme of the reduction that also helps making, maintenance cost.
In addition, in the heater (the 6th scheme of the present invention) of metal cylinder of the present invention, because even also carried out the insulation against ground of roll driving apparatus, so even the discharge that causes because of the induced current (three induced currents for example) that on core components, induces also can suppress.
In addition, in the heater (the 7th scheme of the present invention) of metal cylinder of the present invention, because not only the two ends one side insulation against ground one side with core components is supported by pivot, and the pars intermedia that makes core components also one side insulation against ground one side pivoted and supported, thereby vibration suppression is less in the time of can be with the rotation of backing roll, even if for example when backing roll is grown or is made the backing roll high speed rotating, metal cylinder also can diminish with the impact that contacts rotary part of sleeve pipe, in addition, the discharge of contact rotary part etc. also is difficult to take place or be difficult to aggravation.
In addition, water cooled housing is set, can protects intermediate bearing portion under the radiant heat that backing roll and metal cylinder send by additional in intermediate bearing portion.
Description of drawings
Fig. 1 is the figure of an expression example of the present invention, (a) is the stereogram of showing the unitary construction of metal cylinder heater, is the stereogram of showing user mode (b), is to be illustrated in the faradic stereogram of the secondary that induces on the backing roll (c).
Fig. 2 is the plane graph of two backing rolls.
What Fig. 3 showed is the exterior structure of backing roll each several part, (a) is the stereogram of core components, (b) is the stereogram of short sleeve, (c) is the stereogram of insulation with liner (spacer), (d) is the expanded view of backing roll.
What Fig. 4 showed is the internal structure of backing roll each several part, (a) is the front elevation of backing roll, (b) is that AA is to pseudosection, (c) be BB to pseudosection, (d) be this part enlarged drawing, (e) be C part amplification front view, (f) being its profile, (g) is this part enlarged drawing.
Fig. 5 is for other example of the present invention, shows the stereogram of the unitary construction of metal cylinder heater.
Fig. 6 is the plane graph of two backing rolls.
Fig. 7 is the front elevation and the side view of intermediate bearing portion.
Fig. 8 is the part section side view of backing roll end.
Fig. 9 represents metal cylinder heater in the past, (a) be the stereogram of showing structure and user mode, (b) being to be illustrated in the once faradic stereogram that induces on the metal cylinder, is to be illustrated in the faradic stereogram of the secondary that induces on the backing roll (c).
Figure 10 is illustrated in the metal cylinder heater of trying to have applied insulation-coated layer on the backing roll, (a) is the stereogram of showing structure and user mode, all is to be illustrated in the faradic stereogram of the secondary that induces on the backing roll (b) and (c).
Label declaration
10 metal cylinders (workpiece)
11 induced currents (on metal cylinder, responding to)
12 secondary induced currents (on backing roll, responding to)
13,14,15,16 plane of rotation ends (the frequent position that produces of discharge)
20 metal cylinder heaters (heater of metal cylinder)
21 high frequency electric sources (induction heating equipment)
22 sensing elements (coil, induction heating equipment)
23,24 backing rolls (major part of barrel support whirligig)
25 bearings at both ends portions (pivot support portion, roll driving apparatus)
26 motor (rotary driving source, roll driving apparatus)
30 metal cylinder heaters (heater of metal cylinder)
33,34 backing rolls (major part of barrel support whirligig)
40 metal cylinder heaters (heater of metal cylinder)
50,60 backing rolls (major part of barrel support whirligig)
51,61 core components (metallic axis body, the insulation-coated layer of outer peripheral face coating)
The 51a key member
The 51b hollow bulb
52, the 62 short sleeves stainless steel tubular body of interference fit (can)
The 52a keyway
53,63 tip clearances (electric insulation arrangement)
54 liners (electric insulation arrangement)
54a short sleeve isolation part
The 54b maintained portion
55 backstops (electric insulation arrangement, anti-drop device)
70 metal cylinder heaters (heater of metal cylinder)
71 insulation boards (insulation against ground device)
72 intermediate bearing portions (pivot support portion, roll driving apparatus)
73 water flowing portions (radiant heat covers the water cooled housing of usefulness)
74 appear portion's (radiant heat covers the water cooled housing of usefulness)
80,90 backing rolls (major part of barrel support whirligig)
81,91 core components (metallic axis body, the insulation-coated layer of outer peripheral face coating)
82, the 92 short sleeves stainless steel tubular body of interference fit (can)
Embodiment
For an example of the heater of metal cylinder of the present invention (below, claim the metal cylinder heater), quoted figures illustrates its formation.Fig. 1 (a) is a stereogram of showing the unitary construction of metal cylinder heater, and Fig. 2 is the plane graph of two backing rolls.In addition, what Fig. 3 showed is the exterior structure of backing roll each several part, (a) is the stereogram of core components, (b) is the stereogram of short sleeve, (c) is the stereogram of insulation with liner, (d) is the expanded view of backing roll.And then what Fig. 4 showed is the internal structure of backing roll each several part, (a) is the front elevation of backing roll, (b) be AA to pseudosection, (c) be BB to pseudosection, (d) be this part enlarged drawing, (e) being C part amplification front view, (f) being its profile, (g) is this part enlarged drawing.
Moreover, when diagram, change for the sake of simplicity, having omitted the diagram of electronic circuit etc. of the electric circuit, controller etc. of connecting pieces such as connecting piece, hinge, the motor drives etc. such as supporting construction, base, framework, bolt of sensing element, is that the center illustrates with the necessary parts of explanation of invention and the parts that are associated.In addition,, therefore omitted the explanation once more that repeats owing to when diagram, represent for the label additional identical with identical in the past composed component, below, with in the past difference be that the center describes.
The metal cylinder heater 40 of this example is that backing roll 23,24 and backing roll 33,34 become backing roll 50,60 this point with metal cylinder heater 20,30 differences of having narrated.Moreover, in Fig. 1 (a), though illustrate the motor 26 that has omitted an illustrated high frequency electric source 21, four bearings at both ends portions 25 and among Fig. 9 and Figure 10, these are the parts (with reference to patent documentation 1) that also are equipped with in metal cylinder heater 20 in the past.
Promptly, metal cylinder heater 40 with possess two levels and configured in parallel, when carrying can level during as the metal cylinder 10 of heating target and rotation transmission ground with the backing roll 23,24 of its support, the roll driving apparatus 25～26 that pivots and support and rotate this backing roll 23,24 of driving, with the metal cylinder heater 20 of the induction heating equipment 21～22 of the total length of induction heating metal cylinder 10 be the basis, and by with backing roll 50,60 displacements backing roll 23,24 wherein improved device in addition.
Make 10 rotary cylinder body of metal cylinder support whirligig with the speed of the lining operation that is fit to self-fluxing alloy and as described in already, constitute, and the object lesson of the roll driving apparatus 25～26 that is made of four bearings at both ends portions 25 and motor 26 is illustrated (with reference to Fig. 1 (a)) by backing roll 50,60 and roll driving apparatus 25～26.With the setting like that of each end of pivot supporting backing roll 50,60 respectively, motor 26 can drive backing rolls 50 via one of them bearings at both ends portion 25 rotation with bearings at both ends portion 25.High frequency electric source 21 feeds suitable high-frequency by suitable table conduction time to the sensing element 22 that the induction coil by saddle type constitutes.
Backing roll 50,60 (with reference to Fig. 2) is the parts of same configuration, shape, with the axle base configured in parallel narrower than the diameter of metal cylinder 10, because this moment is so that the axial state setting towards phase reversal, make that the gap between the short sleeve 52 is different each other between backing roll, therefore on a side, add and put on " 50 ", on the opposing party, put on " 60 ", thereby can illustrate distinctively.In addition, (expression " fifties ") the such label of on each parts of backing roll 50, putting on " 5 * ", (expression " sixties ") the such label of on the corresponding component of backing roll 60, putting on " 6 * ".Below, being described in detail the structure of backing roll 50, the structure of backing roll 60 also is same.This backing roll 50 (with reference to Fig. 2, Fig. 3), possess a core components 51 can axle being supported by bearings at both ends portion 25 rotatably, vertically arrange and be inlaid in 12 short sleeves 52 on the core components 51, so that 22 liners 54 and eight backstops 55 of the form regulation short sleeve 52 mutual positions of conducting not to take place mutually.
Core components 51 (with reference to Fig. 3 (a)) is though be to be that good conductor good toughness and cheap stainless club-shaped material are processed into a rotary body and form.Two ends are made into the suitable mutually thin diameter that serves as a contrast with bearings at both ends portion 25, and part in addition is made into the cylindric of same diameter, and plant key member 51a on its outer peripheral face.24 key member 51a are distributed in the both sides of axis, arrange with parallel axes ground all and be provided with.In addition, for short sleeve 52 electric insulations, on the outer peripheral face of core components 51, form insulation-coated layer by aluminium oxide spraying plating etc.Because key member 51a also is stainless steel, therefore also carry out insulation-coated together or individually.And then, on the both ends of core components 51, be formed for installing backstop 55 screw hole, if necessity of weight reduction is arranged, then can on core, form hollow bulb 51b (with reference to Fig. 4 (b)).
Short sleeve 52 (with reference to Fig. 3 (b)), it is shorter than core components 51 to be that cylinder with stainless steel is cut into, and nicking is formed with the parts of keyway 52a on the side face within it.Keyway 52a forms two, all arrives the total length at the both ends that comprise short sleeve 52.The width of keyway 52a and the degree of depth are certain, make it possible to the protuberance of above-mentioned key member 51a is embedded.Short sleeve 52 in order to carry out interference fit, that is, in order making it to be inlaid in after adding thermal expansion on the core components 51, to be made of stainless solid material, and to make internal diameter more a little bit smaller slightly than the external diameter of core components 51.
Insulation liner 54 (with reference to Fig. 3 (c)), be that end face is the stainless steel small pieces of convex, when a side maintained portion 54b is inserted keyway 52a from the end face of any one short sleeve 52, with the opposing party's maintained portion 54b when the end face of another short sleeve 52 adjacent with this short sleeve 52 inserts keyway 52a, short sleeve isolation part 54a is just outstanding between the opposing end surface of two short sleeves 52, thereby will the tip clearance between the adjacent short sleeve 52 53 maintains necessarily or more than it.Short sleeve spacer portion 54a and maintained portion 54b, insulation-coated in order to carry out electric insulation on the surface that has the possibility that contacts with short sleeve 52 at least by enforcements such as aluminium oxide spraying platings, thus make this liner possess necessary electrical insulating property.Also implement insulation-coated to backstop 55.
These are combined (with reference to Fig. 2) and just made backing roll 50 (with reference to Fig. 4).Specifically, short sleeve 52 usefulness interference fit are inlaid on the core components 51 one by one, when this, the protuberance embedding keyway 52a of key member 51a.In addition, at setting-in after short sleeve 52 in the next short sleeve 52 of setting-in, establish two liners 54 being situated between between their end.Liner 54, thus be incorporated between short sleeve 52 and the core components 51 by the centre of maintained portion 54b being inserted the keyway 52a of short sleeve 52, with the state that short sleeve spacer portion 54a exposes from keyway 52a, between the end of the short sleeve 52 that is inserted in both sides of being situated between.
For the metal cylinder heater 40 of this example, quoted figures illustrates that it uses sample attitude and action.Fig. 1 (b) is a stereogram of showing the user mode of metal cylinder heater 40, and Fig. 1 (c) is the stereogram that is illustrated in the flow direction of the secondary induced current 12 that induces on the backing roll 60.
The using method of metal cylinder heater 40 is basic with identical in the past.I.e. (with reference to Fig. 1 (b)), coming with metal cylinder heater 40 under the situation of heating of metal cylindrical shell 10 for the deposited lining of on the inner peripheral surface of metal cylinder 10, implementing self-fluxing alloy etc., at first metal cylinder 10 is carried on the backing roll 50,60, next carry out packing into of self-fluxing alloy powder etc. with use corresponding before operation, and then with sensing element 22 near metal cylinders 10 or confirm that sensing element 22 is positioned at and can carries out on the position of induction heating metal cylinder 10, then make motor 26 and high frequency electric source 21 work.
So, make 50 rotations of backing roll, then metal cylinder 10 and backing roll 60 axle rotations along with it.Its rotary speed is by the control of the controller that do not show of figure etc., remains on the speed that produces desirable centrifugal force on the inner peripheral surface of metal cylinder 10.Centrifugal force (acceleration) as the lining operation that is suitable for self-fluxing alloy is preferably in 30m/s
2( 3G, G are acceleration of gravity) or more than it, though in patent documentation 1 illustration 30～100m/s
2(3～10G) and 50～100m/s
2(5～10G) scope, but recently, also many with 200～500m/s
2(the scope of 20G～50G).
In addition, carry out the high-frequency energising on sensing element 22, (with reference to Fig. 9 (b)) induces an induced current 11 of saddle type substantially on the outer peripheral face of metal cylinder 10, and with this circuit part heating.Because therefore metal cylinder 10 similarly heats metal cylinder 10 full Zhou Dati with the high speed shaft rotation.Under the situation of the lining operation of self-fluxing alloy, metal cylinder 10 is heated to till the deposited high temperature of self-fluxing alloy.This temperature is for as about 1000 ℃ of being put down in writing in the patent documentation 1 or higher, as its required high-frequency power on condition, many with being set at the low frequency band of frequency about 0.3kHz～5kHz, power is the power on condition of the especially big electric power about 200kW～1200kW, but also uses condition in addition.
And then, because the major part of backing roll 50,60 is stainless steels, therefore when high-frequency is switched on, still on backing roll 50,60, also induce secondary induced current 12.
, because the structure of backing roll 50,60 is different with backing roll 23,24 in the past, so the flow direction of the secondary induced current 12 of backing roll 50,60 different with in the past.
I.e. (with reference to Fig. 1 (c)), on backing roll 60, outer peripheral face part as the induction position of secondary induced current 12, be divided into 12 short sleeves 62, because with they electrically insulation mutually, so secondary induced current 12 is also cut apart accordingly with short sleeve 62, flow in the little closed-loop of each secondary induced current 12 in this short sleeve 62, therefore cut apart too and disperseed as the induced electromotive force of the origin of secondary induced current 12.For backing roll 50 too.
Therefore, promptly box lunch follows a swivel bearing roller 50,60 and metal cylinder 10 that vibration etc. takes place and when having destroyed backing roll 50,60 and contacting of metal cylinder 10 etc., continuing the faradic also induced electromotive force of stream works, be dispersed in the induced electromotive force in each short sleeve 62, weak a lot of when not being this structure, therefore sharply reduced the generation of electric spark.
Like this, in this metal cylinder heater 40, backing roll 50,60 can be exposed under the electric spark hardly, so, can fully obtain long-term these advantages of durability such as toughness that stainless steel has, therefore can be in long-time use and do not have unfavorable condition.
In addition, after long-term the use, when short sleeve 52,62 breakages, by only that this short sleeve is more preferably new short sleeve, other parts can continue to use.Similarly carry out during the assembling of the replacing of short sleeve and backing roll 50,60, can be easy to interference fit.
And then, the insulation-coated layer of the insulation-coated layer of the liner 54 of guaranteeing tip clearance 53,63 usefulness that is provided with as seal, core components 51, the insulation-coated layer of liner 54, backstop 55, different with the insulation-coated layer of backing roll 33,34, do not rotate down owing to be exposed to cruel contact, so they also withstand long-term use.
In addition, follow the heating of metal cylinder 10, not only metal cylinder 10, chord runner 50 also is heated, because this heating is to short sleeve 52 roles comparisons core components 51 roles, so short sleeve 52 thermal expansions, thereby produced the tendency that the fastening force with respect to core components 51 dies down.Like this, excessive when this tendency, when loosening to undesirable degree, just become the state that short sleeve 52 had both also moved along the Zhou Fangxiang of core components 51 probably vertically.But, even if the state of affairs one of in this ten thousand, in backing roll 50, also can prevent the idle running of core components 51 by the cooperating of key member 51a and keyway 52a, Jie by liner 54 establishes, prevent adjacent short sleeve 52 contact short circuit each other,, prevent coming off of short sleeve 52 by backstop 55.
For other example of metal cylinder heater of the present invention, quoted figures illustrates its formation.Fig. 5 is the stereogram of unitary construction of showing the heater of metal cylinder, and Fig. 6 is the plane graph of two backing rolls (or with four structures that are configured to two row), and Fig. 7 is the front elevation and the side view of intermediate bearing portion.Moreover what show in the front elevation of Fig. 7 is the state that removes the part of the last side of body after shell is longitudinally cut off.
The metal cylinder heater 70 of this example is to have appended intermediate bearing portion 72 this point and makes this roll driving apparatus insulation against ground this point with the difference of above-mentioned metal cylinder heater 40 on roll driving apparatus 25～26.
Insulation against ground (with reference to Fig. 5), carry out by on each bottom surface of bearings at both ends portion 25, motor 26 and intermediate bearing portion 72, covering insulation board 71, thus, stoped the induced current that induces on the core components of backing roll to flow to ground, placement etc. via roll driving apparatus, therefore the discharge that rises because of it has all suppressed.
The importing of the intermediate bearing portion 72 of the pars intermedia by pivot supporting-core parts, make that backing roll both can be the parts of the length between the bearings at both ends portion 25 of long and both sides, also can make two the short parts that are connected between bearings at both ends portion 25 and the intermediate bearing portion 72, but new backing roll 80,90 is also same with backing roll 50,60, is that short sleeve 82,92 interference fit with stainless steel are to have implemented on the outer peripheral face to form on the core components 81,91 of insulation-coated stainless steel.In this backing roll 80,90, when short sleeve 92 is arranged vertically, not all to arrange thick and fast, but omitted a part.In intermediate bearing portion 72, for screening of radiation heat, the additional water cooled housing that is provided with.
In this case, because the support of the pivot of backing roll 80,90 is not only realized by the bearings at both ends portion 25 at two ends, also the intermediate bearing portion 72 by the centre realizes, even if so when making backing roll 80,90 high speed rotating, because also can the vibration suppression ground of backing roll 80,90 is very little, so metal cylinder 10 will become less with the impact that contacts rotary part of short sleeve 82,92.In addition, since except short sleeve 82,92 cut apart vertically and mutually insulated, the roll driving apparatus 25～26,72 of pivot supporting- core parts 81,91 is also by insulation against ground, therefore discharge and the harmful effect of locating at contact rotary part etc. thereof nearly all do not have, so backing roll 80,90 can be withstood the use of longer time.
And then, intermediate bearing portion 72, by appear portion 74 by shell the radiant heat that backing roll 80,90 and metal cylinder 10 send is covered, thereby relaxed heating, in addition, by being cooled off energetically,, finally also can withstand the use of longer time even if therefore under the environment of cruelty, also can avoid the too much temperature of bearing portion to rise to water flowing portion 73 water flowings of shell.
Like this, in this metal cylinder heater 70, backing roll 80,90 almost is not exposed under the electric spark, in addition, not too can be subjected to following contact to rotate and next impact yet, does not have unfavorable condition so can use in extremely long-time.
In addition, even if in metal cylinder heater 70, avoiding contacting based on the advantage of changing with short sleeve unit, because of insulation-coated layer etc. and rotate the life-span that obtains and prolong, prevent idle running and prevent short circuit etc. with insulating with liner etc. with key member etc. with respect to the unusual loosening of short sleeve, is effective equally.
Embodiment 1
Manufacture experimently above-mentioned metal cylinder heater 40 and metal cylinder heater 70, during the no-load of state of insulation, the backing roll of investigation short sleeve and vibration and the access times till finding the electric spark trace when load is arranged.Metal cylinder heater 70 is also measured the temperature of intermediate bearing portion 72.
The core components 51,61 of the backing roll 50,60 of metal cylinder heater 40, material is JIS/SCM440, and external diameter is 120mm, and length is 1920mm; Its insulation-coated layer, material is an aluminium oxide, thickness is 0.3mm, forms with spraying plating.
The core components 81,91 of the backing roll 80,90 of metal cylinder heater 70 is cut apart at the position of intermediate bearing portion 72, and a side length is 1254mm, and the opposing party's length is 950mm, all is that material is JIS/SCM440, and external diameter is 150mm.Its insulation-coated layer, material is an aluminium oxide, thickness is 0.3mm, forms with spraying plating.
In addition, for the short sleeve 82,92 of metal cylinder heater 70, adjacent the two insulation resistance with the result that identical megohmmeter is measured, all is infinitely great.
Then, running under no-load and the result that measures vibration is, the backing roll 50,60 of metal cylinder heater 40 is at 0.02mm or below it, and the backing roll 80,90 of metal cylinder heater 70 is 0.02～0.05mm.
Relative therewith, when bearing test has load operation with metal cylinder 10, the vibration of the backing roll 50,60 of metal cylinder heater 40 is increased to about 0.25mm, and the vibration of the backing roll 80,90 of metal cylinder heater 70 then rests on 0.05～0.07mm.
And then to sensing element 22 high-frequencies energisings and carry out induction heating, and the shell of measuring temperature, the intermediate bearing portion 72 of metal cylinder 10 is when appearing the temperature of bearing of the temperature of portion 74 and intermediate bearing portion 72 when also, and the result is as follows.That is, when barrel temperature was 600 ℃, skin temperature was 24 ℃, and bearing temperature is 42 ℃; When barrel temperature was 700 ℃, skin temperature was 25 ℃, and bearing temperature is 42 ℃; When barrel temperature was 850 ℃, skin temperature was 30 ℃, and bearing temperature is 44 ℃; When barrel temperature was 950 ℃, skin temperature was 35 ℃, and bearing temperature is 75 ℃, and when barrel temperature was 1050 ℃, skin temperature was 38 ℃, and bearing temperature is 68 ℃.
Then, repeat following processing, that is, one side makes metal cylinder 10 rotate one side with 15 revolutions per seconds speed and makes it heat to 1050 ℃, after this state is kept 10 seconds, again metal cylinder 10 is reduced to normal temperature.
If metal cylinder heater 20 in the past, when with 10 left and right sides of the general repetition of such processing, the electric spark trace that can discern has just appearred on backing roll 23,24, but metal cylinder heater 40 and metal cylinder heater 70, even if repeat above-mentioned processing more than 100 times, on backing roll 50,60,80,90, the electric spark trace can be do not occurred yet, above-mentioned processing can be continued.
Other
Moreover, in above-mentioned example, though enumerated the induction coil of saddle type as sensing element 22, but this is an example, sensing element is so long as can heat the total length of metal cylinder the parts of (heating simultaneously) quickly, also can be other shape, for example, also can be to heat the coil of shape or the coil of multiturn as the face that patent documentation 1 is put down in writing.
In addition, metal cylinder heater of the present invention is not limited to the self-fluxing alloy of metal cylinder inner peripheral surface lining operation, can also be used in the heat treatment of roller for example etc.
And then, in above-mentioned example, though do not have to be provided with as reduction roll that patent documentation 1 is put down in writing, only however with other parts interference, the additional setting of reduction roll is arbitrarily.
In addition, in above-mentioned example,,, also can drive many backing rolls as long as suitably adopt rotation synchronously though only use the rotation of motor to drive to a backing roll.
In addition, Fig. 8 is that the end with backing roll 51 is the detailed side view at center, though only showed the first half of the short sleeve part of grading with section, but illustrated here backstop 55, bend to the angle bar component shape, one end is fixed on bolt 55a on the end face of backing roll 51, and the other end touches with the end face of short sleeve on the outer peripheral face of backing roll 51.
Claims (7)
1. the heater of a metal cylinder, it is to possess one side to make the backing roll that rotates two array structures that simultaneously support as the metal cylinder of heating target, rotation drives the roll driving apparatus of this backing roll, with with the aforementioned metal cylindrical shell total length heater of the metal cylinder of the induction heating equipment of induction heating simultaneously, it is characterized in that, above-mentioned abutment roller has the structure that is embedded with metal sleeve pipe on metal core components, this sleeve pipe is divided into a plurality of short sleeves, gapped configuration to be set each other by setting-in with the state of aforementioned core components electric insulation and at short sleeve.
2. the heater of metal cylinder as claimed in claim 1 is characterized in that, with the device of aforementioned a plurality of short sleeves and aforementioned core components electric insulation, is the coating of the real electrical insulating property that adds on the inner peripheral surface of the outer peripheral face of aforementioned core components or aforementioned short sleeve; Aforementioned short sleeve with this coating between middle and fastened being inlaid on the aforementioned core components.
3. the heater of metal cylinder as claimed in claim 1 is characterized in that, the inner peripheral surface of aforementioned short sleeve is provided with the keyway of the total length that spreads all over this short sleeve; In addition, planted key member on the outer peripheral face of aforementioned core components, aforementioned short sleeve is fixed at Zhou Fangxiang with respect to aforementioned core components by making the previous key parts and being projected in the aforementioned keyway; And then, be engaged in the liner that is configured in short sleeve electrical insulating property each other in the aforementioned keyway of aforementioned short sleeve by key, keep short sleeve aforementioned gap each other.
4. the heater of metal cylinder as claimed in claim 3 is characterized in that, is equipped with the backstop that comes off that is used to prevent aforementioned short sleeve on the end of aforementioned core components.
5. the heater of metal cylinder as claimed in claim 1 is characterized in that, aforementioned sleeve pipe is a nonmagnetic metal system.
6. as the heater of any described metal cylinder in the claim 1 to 5, it is characterized in that aforementioned roll driving apparatus is by insulation against ground.
7. the heater of metal cylinder as claimed in claim 6 is characterized in that, on aforementioned roll driving apparatus, and the intermediate bearing portion of the pars intermedia of the bearings at both ends portion of the end that having pivots supports aforementioned core components and the aforementioned core components of support that pivots.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004027401A JP2005222745A (en) | 2004-02-03 | 2004-02-03 | Heating device of metal tube body |
| JP027401/2004 | 2004-02-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1652641A true CN1652641A (en) | 2005-08-10 |
Family
ID=34879156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004100914451A Pending CN1652641A (en) | 2004-02-03 | 2004-11-22 | Heater of metal cylinder |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2005222745A (en) |
| CN (1) | CN1652641A (en) |
| TW (1) | TW200528562A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102045905A (en) * | 2009-10-20 | 2011-05-04 | 富士电子工业株式会社 | Supporting device of inducted heating object |
| CN102921727A (en) * | 2011-08-08 | 2013-02-13 | 东芝三菱电机产业系统株式会社 | An orientation electromagnetic steel plate operating line and induction heating apparatus |
| CN105567918A (en) * | 2014-10-15 | 2016-05-11 | 铂尼狮集团股份有限公司 | Spring induction heating |
| CN110270689A (en) * | 2018-03-13 | 2019-09-24 | 东莞杰宇机械有限公司 | A kind of bimetal tube sleeve forming technique |
| TWI822648B (en) * | 2022-08-01 | 2023-11-11 | 南韓商Ｍ Ｉ股份有限公司 | Manufacturing method and installation method of powder removal device for pipelines |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6529730B2 (en) * | 2014-09-11 | 2019-06-12 | バーンズ グループ インコーポレーテッド | Spring induction heating |
| EP3758444B1 (en) * | 2018-02-23 | 2022-07-06 | TMT Machinery, Inc. | Induction heating roller and spun yarn take-up machine |
-
2004
- 2004-02-03 JP JP2004027401A patent/JP2005222745A/en active Pending
- 2004-11-22 CN CNA2004100914451A patent/CN1652641A/en active Pending
-
2005
- 2005-01-14 TW TW094101195A patent/TW200528562A/en not_active IP Right Cessation
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102045905A (en) * | 2009-10-20 | 2011-05-04 | 富士电子工业株式会社 | Supporting device of inducted heating object |
| CN102045905B (en) * | 2009-10-20 | 2014-10-29 | 富士电子工业株式会社 | Supporting device of inducted heating object |
| CN102921727A (en) * | 2011-08-08 | 2013-02-13 | 东芝三菱电机产业系统株式会社 | An orientation electromagnetic steel plate operating line and induction heating apparatus |
| CN102921727B (en) * | 2011-08-08 | 2015-03-18 | 东芝三菱电机产业系统株式会社 | An orientation electromagnetic steel plate operating line and induction heating apparatus |
| CN105567918A (en) * | 2014-10-15 | 2016-05-11 | 铂尼狮集团股份有限公司 | Spring induction heating |
| CN105567918B (en) * | 2014-10-15 | 2019-03-12 | 铂尼狮集团股份有限公司 | The induction heating of spring |
| CN110270689A (en) * | 2018-03-13 | 2019-09-24 | 东莞杰宇机械有限公司 | A kind of bimetal tube sleeve forming technique |
| TWI822648B (en) * | 2022-08-01 | 2023-11-11 | 南韓商Ｍ Ｉ股份有限公司 | Manufacturing method and installation method of powder removal device for pipelines |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200528562A (en) | 2005-09-01 |
| JP2005222745A (en) | 2005-08-18 |
| TWI366605B (en) | 2012-06-21 |
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