CN104212949B - A kind of surface hardening device of ultra-large type axial workpiece - Google Patents
A kind of surface hardening device of ultra-large type axial workpiece Download PDFInfo
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- CN104212949B CN104212949B CN201410426359.5A CN201410426359A CN104212949B CN 104212949 B CN104212949 B CN 104212949B CN 201410426359 A CN201410426359 A CN 201410426359A CN 104212949 B CN104212949 B CN 104212949B
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- heating collar
- water spray
- spray ring
- magnetic conductor
- water
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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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The present invention relates to a kind of surface hardening device of ultra-large type axial workpiece, it uses heating collar, water spray ring, cylinder manifold, fixed mount junction block and magnetic conductor to form inductor, inductor comprises at least a heating collar and a water spray ring, heating collar be arranged in parallel with water spray ring, water spray ring is connected with fixed mount junction block, heating collar both ends are connected with two cylinder manifolds respectively, and the cylindrical cladding magnetic conductor of heating collar, the circumference of water spray ring is provided with a circle hole for water spraying.During work, heating collar heats to Axle Surface, piece surface is reached higher temperature in moment.Coolant enters from one end of water spray ring, is flowed out from the other end, because fluid pressure is sprayed to piece surface from hole for water spraying, piece surface is quickly cooled down, reach quenching effect.Because part outer surface and inner surface interval of the present invention are uniform, it is ensured that piece surface thermally equivalent.Meanwhile the production cost of impewdance matching is relatively low.The present invention is simple in construction, energy loss is small, homogeneous heating.
Description
Technical field
The present invention relates to a kind of surface hardening device, particularly a kind of surface hardening device of ultra-large type axial workpiece.Its
Suitable for the surface hardening of external diameter 500mm above super large profile shafts.
Background technology
The surface hardening of ultra-large type axial workpiece is a kind of heat treatment process technology of surface hardening, typically in axle class zero
Part surface is heated the moment for reaching hardening heat, its surface is cooled down rapidly, so that piece surface reaches
Higher hardness.By ultra-large type axial workpiece specification is limited, surface hardening technology can only be used in most cases to it
It is heat-treated, to strengthen its case hardness.As far as the applicant is aware, for the method for quenching surface of macrotype axes series parts, at present
Mainly there are flame hardening, laser quenching, impewdance matching.Wherein：
Flame hardening：It is to be heated to quench by piece surface using high temperature caused by fuel gas and the flame of oxygen mix
Fiery temperature, the subsequent very fast process cooled down with water or other media.Flame-hardened equipment is simple, can be in workpiece surface
Certain hardness and hardened layer are obtained, and keeps the center portion of part original intensity and toughness.But in place of Shortcomings：Flame
The case depth of quenching is very low, is typically not capable of the technical requirements of case depth, and case hardness uniformity can not also ensure.
Laser quenching：It is the heat treatment process technology using the laser beam of high-energy-density as thermal source.Processing procedure is to swash
Light beam scanning metal parts surface, the infrared energy of laser beam quickly form very high temperature by metal parts Surface absorption,
So that metal is undergone phase transition.As laser beam leaves metal parts surface, the heat on metal parts surface relies on metal parts
The heat conductivity of itself is internally transmitted rapidly, and forms great cooling velocity, and self-excitation cooling can be relied on to make piece surface
Quenching, makes its Surface hardened layer.But the case depth that laser quenching is obtained is also very low, is typically not capable of case depth
Technical requirements, and laser quenching cost is very high, it is expensive.
Impewdance matching：It is that part is placed in inductor, alternating current is passed to inductor, when the exchange of certain power frequency
When electricity passes through inductor, just there is induced-current generation in the piece surface being placed in inductor, induced-current is distributed in parts list
Face, occur in the form of vortex, rapid heated components surface reaches hardening heat, by the very fast cooling of part, realizes sensing
Heat surface hardening.Existing induction heating technique, because magnetic induction line loss is more, the efficiency of heating surface of piece surface is relatively low, leads to
It is often that can not carry out effective surface hardening to the axial workpiece being relatively large in diameter.
Applicant several method for quenching surface of the above, due to itself existing deficiency and is made by putting into practice and studying discovery
Surface hardening device structure is simple and crude or imperfection so that the case depth obtained is all very shallow, and some is also deposited
In the uneven deficiency of hardness, the defects of some presence is expensive, and be not all suitable for case hardness and hardened-depth
Spend the macrotype axes series parts that all have certain requirements and carry out surface hardening.
The content of the invention
The object of the present invention is to deficiency existing in terms of for the above-mentioned existing surface hardening for macrotype axes series parts,
It is proposed and study a kind of surface hardening device of ultra-large type axial workpiece.Its is rational in infrastructure, processing charges economy, can realize quilt
The axial workpiece homogeneous heating of processing, the case depth of surface to be machined can be controlled.
The technical solution of the present invention is, using heating collar, water spray ring, cylinder manifold, fixed mount junction block and magnetic conductor
Form inductor, it is characterised in that：Inductor comprises at least a heating collar and a water spray ring；Heating collar is parallel with water spray ring
Set, heating collar is cylindrical to be coated with magnetic conductor, and water spray ring is connected with fixed mount junction block, and heating collar both ends are confluxed with two respectively
Plate is connected, the remote heating collar of water spray ring close to the side of water spray ring inner periphery, around the hole for water spraying provided circumferentially about of water spray ring.
Characterized in that, heating collar is made by a copper tube, the circular portion of heating collar is processed into rectangular cross-section
Rectangular tube, rib corner chamfering, remainder retain the shape that original section is annulus, two of heating collar outlets respectively with one
Pipe joint welds, and the extension that the both ends of heating collar are downward is connected with two cylinder manifolds respectively；Water spray ring is equally by a purple
Copper pipe makes, and the circular portion of water spray ring is processed into the rectangular tube of rectangular cross-section, corner angle chamfering, meanwhile, by the one of rectangular tube
Individual corner angle process hypotenuse, and hole for water spraying is opened on hypotenuse, and water spray ring remainder retains the shape that original section is annulus, water spray
Welded respectively with a pipe joint two outlets of circle.
Characterized in that, a diameter of 1mm of hole for water spraying, the spacing at hole for water spraying center is 10mm, the axis of hole for water spraying with
The axis angle of water spray ring is 45 °.
Characterized in that, the magnetic conductor is concave, the opening of magnetic conductor blocks the cylindrical of heating collar.
Characterized in that, magnetic conductor is fixed using magnetic conductor positioning cards.
Characterized in that, described magnetic conductor positioning cards are " F " font, the cylindrical interval of heating collar is provided with several
The magnetic conductor positioning cards of " F " font, magnetic conductor to be fixed.
Characterized in that, heating collar is made using diameter 30mm ± 0.5mm copper tube, the wall thickness of copper tube is
3mm ± 0.1mm, it is the mm of height 30mm ± 0.5 mm, width 14mm ± 0.2 that the circular portion of heating collar, which is fabricated to section outer rim,
Rectangular tube, corner angle chamfering, remainder retains the shape that original section is annulus, two of heating collar outlets respectively with one
Pipe joint welds.
Characterized in that, water spray ring is made using diameter 30mm ± 0.5mm copper tube, the wall thickness of copper tube is
3mm ± 0.1mm, the circular portion of water spray ring are fabricated to height 30mm ± 0.5mm that section outer rim is, width 14mm ± 0.1mm
Rectangular tube, corner angle chamfering, remainder retains the shape that original section is annulus, two of water spray ring outlets respectively with one
Pipe joint welds.
Characterized in that, cylinder manifold is made using thickness 10mm copper plates, the spacing between two cylinder manifolds for 3mm ±
0.1mm, centre are equipped with mica sheet, outsourcing yellow varnished insulating cloth.
Characterized in that, magnetic conductor uses silicon steel sheet, the thickness of silicon steel sheet is 0.2~0.5mm.
Compared with existing method for quenching surface and quenching unit, beneficial effects of the present invention are：
1st, apparatus of the present invention overcome the limitation of prior art, can control the heating-up temperature of part, firing rate and cold
But speed, so as to control the case hardness of part and case depth.
2nd, using surface hardening device of the present invention, because the spacing between inductor inwall and part is uniform, part can
It is heated properly, can be by deformation amount controlling within allowed band.
3rd, apparatus of the present invention energy loss is small.In the prior art, flame-hardened a big chunk heat is all lost,
Very big waste is caused to the energy.The somewhat expensive of laser quenching, the surface hardening of macrotype axes series parts is not suitable for it.The present invention
Device is that inductor is enclosed on into axial workpiece is cylindrical, and axial workpiece outer surface is heated simultaneously.Due to the effect of magnetic conductor, magnetic strength
Line is concentrated in piece surface, and energy loss is small, has effectively saved the energy.
It is an advantage of the invention that it is novel, rational in infrastructure, processing charges economy, processed axle class zero can be realized
Part homogeneous heating, the case depth of surface to be machined can be controlled.
Brief description of the drawings
Fig. 1, the present invention basic structure front view；
Fig. 2, the present invention basic structure right view；
The magnetic conductor schematic diagram that Fig. 3, the present invention use.
The magnetic conductor positioning cards schematic diagram that Fig. 4, the present invention use.
Hole for water spraying distribution schematic diagram on the water spray ring that Fig. 5, the present invention use.
One of circular portion schematic cross-section of water spray ring that Fig. 6, the present invention use.
The two of the non-circular portion schematic cross-section for the water spray ring that Fig. 7, the present invention use.
In figure：1st, heating collar；2nd, cylinder manifold；3rd, water spray ring；4th, fixed mount junction block；5th, magnetic conductor；6th, magnetic conductor positions
Card；7th, pipe joint.
Embodiment
Below, embodiments of the invention are described in further detail with reference to accompanying drawing.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, the present invention is using heating collar 1, water spray ring 3, cylinder manifold 2, the structure of magnetic conductor 5
Into inductor.Described inductor comprises at least a heating collar 1 and water spray ring 3.Wherein, heating collar 1 is parallel with water spray ring 3 sets
Put, water spray ring 3 is connected with the fixed mount junction block 4 above it, and the extension that the both ends of heating collar 1 are downward converges with two respectively
Flowing plate 2 is connected.Cylinder manifold 2 is made using thickness 10mm copper plates, and the spacing between two cylinder manifolds 2 is 3mm ± 0.1mm, in
Between mica sheet, outsourcing yellow varnished insulating cloth are housed.The port at the both ends of heating collar 1 is respectively welded pipe joint 7.
Heating collar 1 is cylindrical to be coated with magnetic conductor 5, and magnetic conductor 5 uses silicon steel sheet.Magnetic conductor 5 is using magnetic conductor positioning cards 6
It is fixed.
It is worth noting that, when heating collar 1 works, the inwall of heating collar 1 and part to be processed surface should keep suitably away from
From the suitable distance is the mm of 10mm ± 0.5.
The port at the both ends of water spray ring 3 is respectively welded pipe joint 7.One end of the remote heating collar 1 of water spray ring 3 is close to part
Side the circumference of water spray ring 3 is provided with a circle hole for water spraying.A diameter of 1mm of hole for water spraying, the spacing of hole for water spraying is 10mm.
Equally, should point out, when water spray ring 3 works, inwall and the part to be processed surface of water spray ring 3 should be kept
Suitable distance, the suitable distance are the mm of 10mm ± 0.5.
Magnetic conductor 5 is made using silicon steel sheet, and the thickness of every silicon steel sheet is 0.2~0.5mm.The effect of magnetic conductor 5 is to subtract
The loss of few magnetic line of force and the efficiency for improving inductor.
The cylindrical cladding magnetic conductor 5 of heating collar 1, magnetic conductor 5 are outer at interval of 30 ° of installations, one " F " font magnetic conductor locator card
Piece 6, magnetic conductor 5 to be fixed.Magnetic conductor 5 is shaped as concave, and the opening of magnetic conductor 5 blocks heating collar 1
Cylindrical, magnetic conductor 5 uses silicon steel sheet, and the silicon steel sheet that magnetic conductor 5 uses need to pass through phosphorating treatment, ensures exhausted between every silicon steel sheet piece
Edge.
Embodiment 2, as shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, the present invention using heating collar 1, water spray ring 3,
Cylinder manifold 2, magnetic conductor 5 form inductor.Described inductor comprises at least a heating collar 1 and water spray ring 3；Wherein, heat
Circle 1 be arranged in parallel with water spray ring 3, and heating collar 1 is cylindrical to be coated with magnetic conductor 5, water spray ring 3 and the fixed mount junction block 4 above it
It is connected, the extension that the both ends of heating collar 1 are downward is connected with two cylinder manifolds 2 respectively.Cylinder manifold 2 uses thickness 10mm red coppers
Plate makes, and the spacing between two cylinder manifolds 2 is 3mm ± 0.1mm, and centre is equipped with mica sheet, outsourcing yellow varnished insulating cloth.Heating collar 1
The port at both ends is respectively welded pipe joint 7.
Heating collar 1 is made by circular copper tube, the rectangular cross-section at the circular position of heating collar 1, length and the width of rectangle
The ratio between degree about 2:1, the remainder of heating collar 1 retains the shape that original section is annulus.Heating collar should be kept by making heating collar 1
The square-section uniformity at 1 circular position.
Heating collar 1 is made by an external diameter 30mm ± 0.5mm, the copper tube that wall thickness is 3mm ± 0.1mm, the circle of heating collar 1
The rectangular tube that the outer rim that rectangular cross-section is processed into shape part is the mm of height 30mm ± 0.5 mm, width 14mm ± 0.2, corner angle
Chamfering, remainder retain the shape that original section is annulus, and two outlets of heating collar 1 are welded with a pipe joint 7 respectively,
The effect of pipe joint 7 is to be combined closely with water pipe.The downward extension in the both ends of heating collar 1 respectively with two cylinder manifolds
2 are connected.During work, the cylinder manifold 2 being connected with heating collar 1 is connected with sensing apparatus, a pipe joint 7 and the water inlet of heating collar 1
Pipeline is connected, and another pipe joint 7 of heating collar 1 is connected with outlet conduit, running water is flowed through heating collar 1, so that heating collar 1
Cooled down in time without being burned.
Water spray ring 3 is made up of circular copper tube, the rectangular cross-section at the circular position of water spray ring 3, length and the width of rectangle
The ratio between degree about 2:1, the remainder of water spray ring 3 retains the shape that original section is annulus.Making water spray ring 3 should keep spraying water
The square-section uniformity at the circular position of circle 3.Corner angle of the one end of water spray ring 3 away from heating collar 1 close to the side of part
Process the hypotenuse for the equilateral right angled triangle that the length of side is 6mm, to open hole for water spraying on hypotenuse, make the axis of hole for water spraying with
The axis angle of water spray ring 3 is 45 °.A circle hole for water spraying, a diameter of 1mm of hole for water spraying, hole for water spraying are bored around the circumference of water spray ring 3
Spacing be 10mm, axis and the water spray ring axis angle of hole for water spraying are 45 °.
Water spray ring 3 is made by an external diameter 30mm ± 0.5mm, the copper tube that wall thickness is 3mm ± 0.1mm, the circle of water spray ring 3
The rectangular tube that the outer rim that rectangular cross-section is processed into shape part is the mm of height 30mm ± 0.5 mm, width 14mm ± 0.2, the square
The corner angle chamfering of shape pipe, meanwhile, a corner angle of rectangular tube are processed into hypotenuse of the length of side for 6mm equilateral right angled triangle,
Hole for water spraying is opened on hypotenuse, it is 45 ° to make the axis of hole for water spraying and the axis angle of water spray ring 3, and the remainder of water spray ring 3 is protected
The shape that original section is annulus is stayed, two outlets of water spray ring 3 are welded with a pipe joint 7 respectively, and the effect of pipe joint 7 is
Combined closely with water pipe.During work, a pipe joint 7 of water spray ring 3 is connected with inlet channel, and another pipe of water spray ring 3 connects
First 7 are connected with outlet conduit, and the running water with certain pressure flows through water spray ring 3, is injected in and is added with 45 ° of directions from hole for water spraying
Hot piece surface.
The present invention be applied to be positioned over the present invention and with internal surface gaps of the invention 5~12mm big profile shaft
Class part carries out surface hardening.
The present invention structure is simple, energy loss is small, especially suitable for external diameter more than 500mm macrotype axes series parts
Carry out surface hardening.
Claims (6)
- A kind of 1. surface hardening device of ultra-large type axial workpiece, using heating collar（1）, water spray ring（3）, cylinder manifold（2）, it is fixed Bridge joint head tube（4）And magnetic conductor（5）Form inductor, it is characterised in that：Inductor comprises at least a heating collar（1）With one Water spray ring（3）；Heating collar（1）With water spray ring（3）It is arranged in parallel, heating collar（1）It is cylindrical to be coated with magnetic conductor（5）, water spray ring（3） With fixed mount junction block（4）It is connected, heating collar（1）Both ends respectively with two cylinder manifolds（2）It is connected, water spray ring（3）Circumference set It is equipped with hole for water spraying；Heating collar（1）Made by a copper tube, heating collar（1）Circular portion be processed into the square of rectangular cross-section Shape pipe, corner angle chamfering, remainder retain the shape that original section is annulus, heating collar（1）Two outlet respectively with one Pipe joint（7）Welding, heating collar（1）The downward extension in both ends respectively with two cylinder manifolds（2）It is connected；Water spray ring（3） Equally made by a copper tube, water spray ring（3）Circular portion be processed into the rectangular tube of rectangular cross-section, meanwhile, will spray water Circle（3）Upper remote heating collar（1）Corner angle of the one end close to the side of part process hypotenuse, hole for water spraying is opened on hypotenuse, is sprayed Hydrosphere（3）Remainder retains the shape that original section is annulus, water spray ring（3）Two outlet respectively with a pipe joint （7）Welding；A diameter of 1mm of hole for water spraying, the spacing of hole for water spraying is 10mm, the axis of hole for water spraying and water spray ring（3）Axis Wire clamp angle is 45 °；The magnetic conductor（5）For concave, magnetic conductor（5）Opening block heating collar（1）It is cylindrical；Magnetic conductor （5）Using magnetic conductor fixed card（6）It is fixed, heating collar（1）And water spray ring（3）Inwall and part to be processed surface between Gap is 5~12mm.
- 2. the surface hardening device of a kind of ultra-large type axial workpiece according to claim 1, it is characterised in that described leads Magnet fixed card（6）For " F " font, heating collar（1）Cylindrical interval the magnetic conductor fixing card of several " F " fonts is installed Piece（6）, to magnetic conductor（5）It is fixed.
- A kind of 3. surface hardening device of ultra-large type axial workpiece according to claim 1, it is characterised in that heating collar （1）Made using diameter 30mm ± 0.5mm copper tube, the wall thickness of copper tube is 3mm ± 0.1mm, heating collar（1）Circle Shape part be fabricated to section outer rim be the mm of height 30mm ± 0.5 mm, width 14mm ± 0.2 rectangular tube, corner angle chamfering, remaining Part retains the shape that original section is annulus, heating collar（1）Two outlet respectively with a pipe joint（7）Welding.
- A kind of 4. surface hardening device of ultra-large type axial workpiece according to claim 1, it is characterised in that water spray ring （3）Made using diameter 30mm ± 0.5mm copper tube, the wall thickness of copper tube is 3mm ± 0.1mm, water spray ring（3）Circle Shape part is fabricated to height 30mm ± 0.5mm that section outer rim is, width 14mm ± 0.1mm rectangular tube, corner angle chamfering, remaining Part retains the shape that original section is annulus, water spray ring（3）Two outlet respectively with a pipe joint（7）Welding.
- A kind of 5. surface hardening device of ultra-large type axial workpiece according to claim 1, it is characterised in that cylinder manifold （2）Made using thickness 10mm copper plates, two cylinder manifolds（2）Between spacing be 3mm ± 0.1mm, centre mica sheet is housed, Outsourcing yellow varnished insulating cloth.
- A kind of 6. surface hardening device of ultra-large type axial workpiece according to claim 1, it is characterised in that magnetic conductor （5）Using silicon steel sheet, the thickness of silicon steel sheet is 0.2~0.5mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410426359.5A CN104212949B (en) | 2014-08-27 | 2014-08-27 | A kind of surface hardening device of ultra-large type axial workpiece |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410426359.5A CN104212949B (en) | 2014-08-27 | 2014-08-27 | A kind of surface hardening device of ultra-large type axial workpiece |
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| CN104212949A CN104212949A (en) | 2014-12-17 |
| CN104212949B true CN104212949B (en) | 2017-12-26 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106367564B (en) * | 2016-09-22 | 2017-12-22 | 中车大连机车车辆有限公司 | Spring leaf one side medium frequency induction hardening process and its inductor |
| CN109680229B (en) * | 2019-02-14 | 2020-05-26 | 佛山市八斗铝业有限公司 | Quenching device for aluminum alloy round pipe |
| CN110656232B (en) * | 2019-11-11 | 2023-06-23 | 重庆望江工业有限公司 | Induction hardening equipment of large-scale bearing race track face |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102220458B (en) * | 2011-06-01 | 2012-11-28 | 许昌远东传动轴股份有限公司 | Intermediate-frequency induction quenching method for spline shaft fork |
| CN202246742U (en) * | 2011-08-05 | 2012-05-30 | 上海纳铁福传动轴有限公司 | Induction coil used for quenching splined shaft |
| CN103589846B (en) * | 2013-11-05 | 2015-04-15 | 中国第一汽车股份有限公司 | Quenching inductor for double steps of steering joint and quenching method for steering joint |
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