CN106544476B - A kind of inductor for accessory inner surface quenching - Google Patents
A kind of inductor for accessory inner surface quenching Download PDFInfo
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- CN106544476B CN106544476B CN201611050957.2A CN201611050957A CN106544476B CN 106544476 B CN106544476 B CN 106544476B CN 201611050957 A CN201611050957 A CN 201611050957A CN 106544476 B CN106544476 B CN 106544476B
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- turn
- left half
- right half
- induction coil
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/06—Surface hardening
- C21D1/09—Surface hardening by direct application of electrical or wave energy; by particle radiation
- C21D1/10—Surface hardening by direct application of electrical or wave energy; by particle radiation by electric induction
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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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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
- General Induction Heating (AREA)
Abstract
The present invention provides a kind of inductor for accessory inner surface quenching, including induction coil made of copper material, the induction coil includes multiple hollow left half-turns and multiple hollow right half-turns, the left half-turn and right half-turn are spaced in the up-down direction stacks gapless setting, neighbouring left half-turn and right half-turn are projected as circle in horizontal plane, one end of the adjacent left half-turn of upper and lower directions is connected with one end of right half-turn, insulating trip is equipped between the other end of the other end of left half-turn and right half-turn, all left half-turns connect the access to form a spiral with the inner cavity of all right half-turns, the access is connected with water cooling plant, quenching liquid spray tube is equipped in the induction coil.Gapless is set in the up-down direction for left half-turn and right half-turn in induction coil of the present invention, and entire accessory inner surface can be heated simultaneously and temperature is uniform, be ensure that quenching after-hardening layer is uniform, is improved production efficiency, ensure that the product quality of part.
Description
Technical field
The present invention relates to inductor more particularly to a kind of inductors for accessory inner surface quenching.
Background technology
Induction hardening is a kind of common quenching mode, generates induced electricity by piece surface by inductor during use
Stream is rapidly heated by electric current and reaches hardening heat and be quickly cooled down quenching, finally so that accessory inner surface reaches high rigidity, and
Inside parts do not heat holding soft.Induction hardening will make part different parts obtain different hardened layer shapes, energy
Be easy to get and ensure the quench-hardened case requirement of arbitrary difficulty requirement, phenomena such as hardened face does not have crackle, dissolves, core hardness without
Variation, surface martensite tissue need to meet national standard.
At present, accessory inner surface quenching is mostly scanned mobile heating quenching or using more using circular ring-type inductor
Ring inductor quenches accessory inner surface entirety heat induced.Circular ring-type inductor need to carry out motion scan heating quenching, sweep
It is long to retouch mobile heating time, low production efficiency.As shown in Figure 1, multi-turn type inductor includes multiple induction coils for stacking setting
101,101 inner wall of induction coil is equipped with magnetizer 102, and arrow direction is the flow direction of electric current, and multi-turn type inductor compares circular ring-type
Inductor working efficiency higher, but need to insulate between induction coil 101, therefore need to set insulator between induction coil 101
103, this is allowed between induction coil 101, and inevitably there are 1 to 2 millimeters of gaps, this may result in accessory inner surface
Sensing heating Magnetic field inhomogeneity, gap location are sent out without magnetic field, cause corresponding part position heating temperature herein insufficient, hardened layer
It is partially shallow, it is bad to eventually lead to entire laser quenching hardened layer depth uniformity.Therefore, how to solve shortcoming of the prior art is
Those skilled in the art's technical issues that need to address.
Invention content
The technical problem to be solved in the present invention is to provide a kind of inductor for accessory inner surface quenching, can be effectively
Accessory inner surface is carried out efficiently, uniform quenching, the defects of to overcome in the prior art.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical scheme that：It is a kind of to be used for what accessory inner surface quenched
Inductor, including induction coil made of copper material, the induction coil includes multiple hollow left half-turns and multiple hollow right sides
Half-turn, the left half-turn and right half-turn are spaced in the up-down direction stacks gapless setting, neighbouring left half-turn and right half
Enclose the circle that is projected as in horizontal plane, one end of the adjacent left half-turn of upper and lower directions is connected with one end of right half-turn, left half-turn
Insulating trip is equipped between the other end of the other end and right half-turn, all left half-turns connect to form one with the inner cavity of all right half-turns
The access of spiral, the access are connected with water cooling plant, and quenching liquid spray tube is equipped in the induction coil.
Preferably, the left half-turn and right half-turn respectively include intrados, extrados, top and bottom, the left half-turn
Intrados, top and bottom with right half-turn are respectively equipped with magnetizer.
Further, the magnetizer is silicon steel sheet.
Preferably, insulating trip is respectively equipped between the left half-turn, insulating trip is respectively equipped between the right half-turn.
Preferably, the left half-turn and right half-turn are respectively equipped with two.
Preferably, the induction coil is mounted on a stent.
Further, shielding ring is additionally provided on the stent, the shielding ring is parallel to the lower end setting of induction coil.
Preferably, the water cooling plant is equipped with upper water inlet pipe, lower water inlet pipe and outlet pipe, the upper end of the induction coil and upper
Water inlet pipe connects, and lower end is connected with lower water inlet pipe, and the centre position of the induction coil is connected with outlet pipe.
As described above, a kind of inductor for accessory inner surface quenching of the present invention, has the advantages that：
Gapless is set in the up-down direction for left half-turn and right half-turn in induction coil of the present invention, and when use can be to part
Inner surface all areas heat simultaneously, and heating temperature is uniform, ensure that quenching after-hardening layer is uniform, improve production effect
Rate ensure that the product quality of part.The present invention is changed to two into one knots gone out by traditional one-in-and-one-out induction coil cooling water
Structure, improves the cooling effect in induction coil use, and the service life of induction coil has been grown in the court of a feudal ruler.In addition, when using the present invention, also
Heating schedule parameter is enormously simplified, only need to set heating location, heating time and heating power.By actually using, more
It is easy to the control of quality actually quenched, quenching effect is good, has extensive value for applications.
Description of the drawings
Fig. 1 is the schematic diagram of prior art inductor.
Fig. 2 is the vertical view of the present invention.
Fig. 3 is A direction views in Fig. 2.
Fig. 4 is view at B-B in Fig. 2.
Fig. 5 is the three-dimensional simplified schematic diagram of left half-turn of the invention and right half-turn.
Fig. 6 is the overall structure schematic front view of the present invention.
Fig. 7 is the overall structure schematic side view of the present invention.
Fig. 8 is the cooling principle schematic diagram of induction coil in the present invention.
Fig. 9 is the use state simplified schematic diagram of the present invention.
Figure label is：
1 left 2 right half-turn of half-turn
3 water cooling plant, 4 magnetizer
5 insulating trip, 6 part
7 stent, 8 shielding ring
Water inlet pipe on 9 quenching liquid spray tubes 31
32 times 33 outlet pipes of water inlet pipe
10 insulating trip, 101 induction coil
102 magnetizer, 103 insulating trip
Specific embodiment
Structure, ratio, size depicted in Figure of description etc., only to coordinate the revealed content of specification, with
Understand for those skilled in the art and read, be not limited to the enforceable qualifications of the present invention, therefore do not have technically
Essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size can be generated not influencing the present invention
Under effect and the purpose that can reach, should all still it fall in the range of disclosed technology contents can be covered.Meanwhile
Cited such as " on ", " under ", "left", "right", " centre " term, are merely convenient to the clear of narration in this specification, and
It is non-that to limit the present invention enforceable range, relativeness is altered or modified, in the case where changing technology contents without essence, when
Also it is considered as the enforceable scope of the present invention.
As Figure 2-Figure 5, a kind of inductor for accessory inner surface quenching of the present invention, including made of copper material
Induction coil, the induction coil include multiple hollow left half-turns 1 and multiple hollow right half-turns 2, the left half-turn 1 and right half-turn
2 size is identical with shape and structure, field homogeneity during ensuring sensing heating.The left half-turn 1 and right half-turn 2 are upper and lower
Interval stacks gapless setting on direction, because being that gapless interval stacks, therefore carries out sensing heating to the inner surface of part
When, sensing heating Magnetic field inhomogeneity will not be led to the problem of, also just can effectively ensure heating quality.Because left half-turn 1 and the right side
Half-turn 2 is to be arranged at intervals, therefore left half-turn 1 is equal with the quantity of right half-turn or one of which is one more, and Fig. 3 is an a kind of left side
The specific implementation structure equal with right 2 quantity of half-turn of half-turn 1.In the present invention, neighbouring left half-turn 1 and right half-turn 2 exist
Horizontal plane is projected as circle, one end of the adjacent left half-turn 1 of upper and lower directions is connected with one end of right half-turn 2, left half-turn 1 it is another
Insulating trip 10 is equipped between the other end of one end and right half-turn 2, all left half-turns 1 connect to be formed with the inner cavity of all right half-turns 2
The access of one spiral, the access are connected with water cooling plant 3；That is left half-turn 1 adjacent in upper and lower directions and the right side
It is connection that half-turn 2, which only has one end, in order to avoid short circuit, so the other end needs to insulate.With reference to Fig. 3, Fig. 5 and Fig. 9, in order to protect
Gapless between left half-turn 1 and right half-turn 2 is demonstrate,proved, when setting insulating trip 10, in one end that left half-turn 1 is connected with right half-turn 2
Grind the cascaded surface of a recess respectively, insulating trip 10 be embedded between the gap of two cascaded surfaces, i.e. two cascaded surfaces it
Between distance be exactly insulating trip 10 thickness；Dotted line position in Fig. 5 is exactly the cascaded surface being recessed, only by the position of cascaded surface
It puts and is indicated, not representing all positions has cascaded surface.As shown in figure 3, in order to form an access, insulating trip 10 is alternately set
It puts in left side and right side.Quenching liquid spray tube 9 is equipped in the induction coil, by quenching liquid spray tube 9 in induction coil to zero
Spray quenching in time after part is heated.As is seen in fig. 6 or fig. 7, the induction coil in the present invention is mounted on a stent 7, i.e., left
The whole induction coil that half-turn 1 and right half-turn 2 are formed is mounted on stent 7, and the quenching liquid spray tube 9 is also mounted on stent 7.
As shown in Figures 2 and 3, the left half-turn 1 in the present invention and right half-turn 2 are very close to each other in the up-down direction, with reference to Fig. 3-Fig. 9,
When carrying out induction hardening to the inner surface of part 6, part 6 rotates, and then can be to whole by left half-turn 1 and right half-turn 2
The inner surface of a part 6 heats simultaneously, can ensure that accessory inner surface all areas temperature is uniform, and quenching after-hardening layer is uniform.
In addition, in actual use, only it need to set heating location, heating time and heating power, it will be able to the effectively practical quenching of control
Quality, and quench after be more easy to reach uniform hardened layer requirement.
In the present embodiment, induction coil forms an access for being used for water flowing entirely through left half-turn 1 and right half-turn 2, because
This, with reference to Fig. 3, Fig. 6 and Fig. 8, the both ends of the left half-turn 1 in bottom are connected with water cooling plant 3, and then at work to whole access
Carry out water flowing cooling.With reference to Fig. 3, Fig. 4 and Fig. 8, the water cooling plant 3 is equipped with upper water inlet pipe 31, lower water inlet pipe 32 and outlet pipe
33, the right half-turn 2 of the upper end of the induction coil is connected with upper water inlet pipe 31, and the left half-turn 1 of lower end is connected with lower water inlet pipe 32, institute
The centre position for stating induction coil is connected with outlet pipe 33.The present embodiment carries out cooling drop by the way of going out using two into one to induction coil
Temperature, i.e., from the water filling into induction coil simultaneously of upper water inlet pipe 31 and lower water inlet pipe 32, water by heat exchange is from intermediate outlet pipe
33 discharges, with reference to the arrow direction in figure 8.This mode can ensure the cooling effect of induction coil entirety, and cardinal principle is
Flowing time of the water in induction coil is reduced, the hot water after heat exchange is discharged in time, cold water is allowed to add in induction coil as early as possible.
By using, present embodiment can improve cooling effect, also effectively extend the service life of induction coil.Institute in the present embodiment
The centre position for stating induction coil can be on left half-turn 1 or on right half-turn 2, can also be on left half-turn 1 and the right side
The junction of half-turn 2 is specifically subject to easy to implement.
As shown in figure 5, the left half-turn 1 and right half-turn 2 respectively include intrados a, extrados b, top surface c and bottom surface d,
That is left half-turn 1 and right half-turn 2 are C-shaped configuration, can be respectively equipped with end face can also not have, and end face does not influence this
The principle and effect of invention, therefore be not described, in order to easily manufactured, it is preferred to use shown in fig. 5 to have end face structure.With reference to figure
Intrados a, top surface c and the bottom surface d of 4 and Fig. 5, the left half-turn 1 and right half-turn 2 are respectively equipped with magnetizer 4.The magnetizer 4
Magnetic field can be increased, electric current will be sensed and be driven onto the outside of induction coil, and then enhance induction current intensity on part, be finally reached raising
The effect of sensing heating speed, therefore the quenching efficiency of the present invention is high, reduces time cost.
In the present embodiment, the magnetizer 4 can be the materials such as pure iron, alloy；The present embodiment preferably uses silicon steel sheet
For magnetizer 4, magnetic property is good, and price economy, is easy to get.
As shown in figure 4, being respectively equipped with insulating trip 5 between the left half-turn 1, insulation is respectively equipped between the right half-turn 2
Piece 5, the effect of insulating trip 5 are that the magnetizer 4 in upper and lower directions is avoided to contact and lead to short circuit current.
In the present embodiment, as shown in Figure 6 and Figure 7, shielding ring 8 is additionally provided on the stent 7, the shielding ring 8 is parallel
It is set in the lower end of induction coil, lower end mentioned here with attached drawing merely to combined, without limitation.With reference to figure 9, use
When of the invention, shielding ring 8 is located at the outside of part 6, and effect is to ensure that the port magnetic field of part 6 will not escape outward, ensures
6 port of part will not overheat.The shielding ring 8 is copper material.
As shown in Figure 3 or Figure 4, the left half-turn 1 and right half-turn 2 are respectively equipped with two.Here only it is to a kind of specific knot
The expression of structure, not to the restriction of 2 quantity of left half-turn 1 and right half-turn in actual use.
With reference to Fig. 2-Fig. 9, application method of the invention and principle are as described below：
First by stent 7 by integral installation of the present invention on lathe, set heating location, by part 6 be mounted on lathe
It above and is sleeved on induction coil, as shown in figure 9, the inner surface of part 6 is not contacted with induction coil.Hereafter, setting heating time and
Heating power, induction coil are powered, and part 6 persistently rotates, and left half-turn 1 of the invention and right half-turn 2 are in the rotation process of part 6
Sensing heating is carried out to 6 inner surface of part, left half-turn 1 is identical with right 2 size and shape of half-turn, there can be accessory inner surface progress
Whole sensing heating, as shown in figure 9, wherein arrow direction is current direction, water cooling plant 3 starts to sense while being powered
Whole progress water flowing cooling should be enclosed, after reaching heating time, powers off, cut off the water supply, then carrying out spray by quenching liquid spray tube 9 quenches
Fire；So far, the inner surface quenching of part 6 is completed, and carries out following process.
In conclusion a kind of inductor for accessory inner surface quenching of the present invention, can solve to quench to accessory inner surface
The non-uniform problem of fire；Meanwhile water-cooling system enhances the cooling effect of induction coil, the service life of induction coil has been grown in the court of a feudal ruler.So this
Invention effectively overcomes some practical problems of the prior art so as to have very high utility value and using meaning.
The principle of the present invention and its effect is only illustrated in the above embodiment, and is not intended to limit the present invention.This hair
It is bright to be improved under the premise of without prejudice to overall thought there are many more aspect, it all can be for those skilled in the art
Without prejudice under the spirit and scope of the present invention, modifications and changes can be carried out to above-described embodiment.Therefore, technical field such as
All equivalent modifications that middle tool usually intellectual is completed under without departing from disclosed spirit and technological thought or
Change, should be covered by the claim of the present invention.
Claims (8)
1. a kind of inductor for accessory inner surface quenching, it is characterised in that：It is described including induction coil made of copper material
Induction coil includes multiple hollow left half-turns (1) and multiple hollow right half-turns (2), the left half-turn (1) and right half-turn (2) exist
Interval stacks gapless setting in upper and lower directions, and neighbouring left half-turn (1) and right half-turn (2) are projected as justifying in horizontal plane
Shape, one end of the adjacent left half-turn (1) of upper and lower directions is connected with one end of right half-turn (2), the other end of left half-turn (1) and right half
It encloses between the other end of (2) equipped with insulating trip (10), insulating trip (10) is disposed alternately at left side and right side；All left half-turns (1)
The access to form a spiral is connected with the inner cavity of all right half-turns (2), the access is connected with water cooling plant (3), described
Quenching liquid spray tube (9) is equipped in induction coil.
2. a kind of inductor for accessory inner surface quenching according to claim 1, it is characterised in that：The left half-turn
(1) and right half-turn (2) respectively includes the inner arcs of intrados, extrados, top and bottom, the left half-turn (1) and right half-turn (2)
Face, top and bottom are respectively equipped with magnetizer (4).
3. a kind of inductor for accessory inner surface quenching according to claim 2, it is characterised in that：The magnetizer
(4) it is silicon steel sheet.
4. a kind of inductor for accessory inner surface quenching according to claim 1, it is characterised in that：The left half-turn
(1) insulating trip (5) is respectively equipped between, insulating trip (5) is respectively equipped between the right half-turn (2).
5. a kind of inductor for accessory inner surface quenching according to claim 1, it is characterised in that：The left half-turn
(1) and right half-turn (2) is respectively equipped with two.
6. a kind of inductor for accessory inner surface quenching according to claim 1, it is characterised in that：The induction coil
On a stent (7).
7. a kind of inductor for accessory inner surface quenching according to claim 6, it is characterised in that：The stent
(7) shielding ring (8) is additionally provided on, the shielding ring (8) is parallel to the lower end setting of induction coil.
8. a kind of inductor for accessory inner surface quenching according to claim 1, it is characterised in that：The water cooling dress
(3) are put equipped with upper water inlet pipe (31), lower water inlet pipe (32) and outlet pipe (33), the upper end of the induction coil and upper water inlet pipe (31)
Connection, lower end are connected with lower water inlet pipe (32), and the centre position of the induction coil is connected with outlet pipe (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201611050957.2A CN106544476B (en) | 2016-11-24 | 2016-11-24 | A kind of inductor for accessory inner surface quenching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611050957.2A CN106544476B (en) | 2016-11-24 | 2016-11-24 | A kind of inductor for accessory inner surface quenching |
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| CN106544476A CN106544476A (en) | 2017-03-29 |
| CN106544476B true CN106544476B (en) | 2018-06-29 |
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| CN111074054B (en) * | 2019-12-18 | 2021-06-22 | 中联重科股份有限公司 | Pipe fitting inner surface quenching device and method for quenching pipe fitting inner surface |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19752237A1 (en) * | 1997-11-26 | 1999-05-27 | Kessler Kg Maschf | Apparatus for electroinductive hardening of crankshaft bearing surfaces and transition radii |
| JP3761328B2 (en) * | 1998-06-25 | 2006-03-29 | 高周波熱錬株式会社 | Induction heating coil |
| JP4023623B2 (en) * | 2005-04-20 | 2007-12-19 | 電気興業株式会社 | Camshaft high frequency induction heating coil and camshaft high frequency induction heating method using the heating coil |
| JP2007327128A (en) * | 2006-06-09 | 2007-12-20 | Denki Kogyo Co Ltd | High-frequency induction heating apparatus |
| JP5114671B2 (en) * | 2007-04-16 | 2013-01-09 | 新日鐵住金株式会社 | Induction heating apparatus and induction heating method for metal plate |
| CN202830088U (en) * | 2012-08-22 | 2013-03-27 | 无锡鹰贝精密轴承有限公司 | Induction coil for inner hole high-frequency quenching treatment |
| JP6108612B2 (en) * | 2013-05-17 | 2017-04-05 | 富士電子工業株式会社 | Moving quenching device for long workpiece and moving quenching method |
| CN204803346U (en) * | 2015-06-30 | 2015-11-25 | 上海恒精机电设备有限公司 | A red copper packs accurate quenching inductor of laminar for small -size roller |
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