CN104372156A - Sensor for concurrently treating induction-quenching spray-cooling of two gears - Google Patents
Sensor for concurrently treating induction-quenching spray-cooling of two gears Download PDFInfo
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- CN104372156A CN104372156A CN201310355983.6A CN201310355983A CN104372156A CN 104372156 A CN104372156 A CN 104372156A CN 201310355983 A CN201310355983 A CN 201310355983A CN 104372156 A CN104372156 A CN 104372156A
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Abstract
The invention relates to a sensor for concurrently treating induction-quenching spray-cooling of two gears. The sensor comprises: two inducing coils respectively corresponding to two gear of a work-piece; two groups of confluence strips, wherein one end is connected to the inducing coil, and the other end is connected with a power supply; two sprayers respectively and correspondingly arranged on the inner rings of the two inducing coils in a sleeve manner and provided with liquid spraying holes; and quenching liquid pipes, wherein one end is communicated with the sprayer, and the other end is communicated with a liquid supply device. According to the present invention, the two inducing coils are arranged, the sprayer is arranged on the inner ring of the inducing coil in the sleeve manner, and the gear enters the corresponding inducing coil during the use so as to be heated, and enters the spraying region after heating to the quenching temperature so as to be cooled, such that the hardening layer inspection time and the tempering time can be reduced due to the concurrent treatment on the two gears and the basically same quenching conditions of the two gears so as to avoid the hardness deviation caused by the heat conduction between the two rows of the teeth and reduce the use of the tooling; and the sensor has characteristics of rational structure design, easy operation, and substantial improvement of production efficiency and production quality.
Description
Technical field
The present invention relates to powder metallurgy production technical field, especially a kind of inductor block simultaneously processing two gear induction quenchings injection coolings.
Background technology
In prior art, powder metallurgy has the workpiece induction quenching mode of two gears to be all generally adopt gradation quenching, namely first processes a gear, checks the qualified rear reprocessing of this tooth case depth second gear, again check the case depth of second tooth.Make the workpiece processing two need gears to be processed in this way often need two quenching apparatus, two gear separately quenchings, efficiency is low; Need after a gear quenching is complete to check hardened layer, also need inspection after another gear quenching is complete, efficiency is low; A complete rear tempering of gear quenching, also want tempering after another gear quenching is complete, two tempering, efficiency is low; In addition when a process gear, heat can be transmitted to another gear, likely can affect the surface hardness of second gear, needs frock to carry out the conduction of isolated heat.In sum, the method steps of the workpiece of general process two gears is more, and efficiency is low.
Summary of the invention
Technical problem to be solved by this invention provides a kind of reasonable in design for the above-mentioned state of the art, process while easy to operate two gear induction quenchings spray cooling inductor block.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of inductor block simultaneously processing two gear induction quenchings injection coolings, is characterized in that comprising:
Two inducing coils of heated parts are carried out for generation of magnetic field, corresponding with two gears of workpiece respectively;
Two groups are used for the bus-bar of supply current being defeated by inducing coil, and one end is connected with inducing coil, and the other end is connected with power supply;
Two are correspondingly respectively set on the inner ring of two inducing coils for spraying cooling fluid to cool the injector of workpiece, and the inwall of injector is provided with multiple spray hole;
The quench fluid tube be connected with two injectors respectively, one end is connected with injector, and the other end is connected with liquid feed device.
As improvement, described two inducing coils are respectively the little tooth inducing coil corresponding with the little tooth of workpiece and the canine tooth inducing coil corresponding with the canine tooth of workpiece, little tooth inducing coil and canine tooth inducing coil are annular is be arranged in parallel up and down, and distance is therebetween equal with the height between canine tooth with little tooth.
As improvement, the external diameter of described little tooth ruhmkorff coil is greater than 2 ~ 2.5mm of little tooth tooth top external diameter, the height of little tooth ruhmkorff coil is greater than 2 ~ 10mm of little tooth height, the external diameter of canine tooth ruhmkorff coil is greater than 2 ~ 2.5mm of canine tooth tooth top external diameter, and the height of canine tooth ruhmkorff coil is greater than 2 ~ 10mm of large tooth height.
As improvement, described injector is annular, be set on the inner ring of little tooth inducing coil and canine tooth inducing coil respectively, described spray hole is arranged on the inwall of injector in staggered, the hatch bore diameter of spray hole is 1.5 ~ 1.8mm, the bottom part aperture diameter of spray hole is 3 ~ 3.5mm, and the spacing of adjacent two row's spray holes is 3 ~ 4mm, and the axis of spray hole and the axis angle of workpiece are 25 ° ~ 45 °.
Improve, described quench fluid tube is two groups up and down corresponding with injector, and often group is provided with 2 ~ 5 quench fluid tubes again, and the interface often organizing quench fluid tube and injector is uniformly distributed along injector.
Improve, described quench fluid tube is often organize 4, and described quench fluid tube is laid along the direction of bus-bar after injector is drawn again.
Further improvement, also comprises a plate, and web plate is provided with connecting hole, described bus-bar draw from little tooth inducing coil or canine tooth inducing overhang after in upwards, outwards right angle turnover, by web plate, bus-bar and induction hardening transformer are fixedly clamped.
Compared with prior art, the invention has the advantages that: be provided with two inducing coils, injector is set on the inner ring of inducing coil, injector is provided with several spray holes, during use, gear is put on the rotating pan, the inducing coil that workpiece rising makes gear enter correspondence heats, and enters inlet zone cooling after being heated to quenching temperature.Owing to being process two gears simultaneously, the quenching situation of two teeth is substantially identical, can reduce hardened layer proving time and tempering time, avoids the mutual conduction of heat between two toothrows to cause hardness deviation, reduces the use of frock.Reasonable in design of the present invention, easy to operate, can greatly enhance productivity and the quality of production.
Accompanying drawing explanation
Fig. 1 is the structural upright schematic diagram of the embodiment of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the frontview of Fig. 1;
Fig. 4 is the structural representation of injector in Fig. 1;
Fig. 5 is the sectional view of spray hole in Fig. 4;
Fig. 6 is the arrangement mode figure of spray hole in Fig. 4;
Fig. 7 is the structure sectional view of the workpiece of the process of the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
As shown in figs. 1 to 6, one processes two gear induction quenchings simultaneously and to soak oil cooled inductor block, comprise two inducing coils, two groups of bus-bars 3, web plate 4, two injectors 7, quench fluid tubes 6, inducing coil is annular, be used to produce magnetic field and carry out heated parts 5, the structure of workpiece 5 is as shown in Figure 7, two inducing coils are respectively the little tooth inducing coil 1 corresponding with the little tooth 51 of workpiece 5 and the canine tooth inducing coil 2 corresponding with the canine tooth 52 of workpiece 5, little tooth inducing coil 1 and canine tooth inducing coil 2 are in be arrangeding in parallel up and down, therebetween distance is equal with the height between canine tooth 52 with little tooth 51, the external diameter of little tooth ruhmkorff coil 1 is greater than 2 ~ 2.5mm of little tooth 51 tooth top external diameter, the height of little tooth ruhmkorff coil 1 is greater than 2 ~ 10mm of little tooth 51 height, the external diameter of canine tooth ruhmkorff coil 2 is greater than 2 ~ 2.5mm of canine tooth 52 tooth top external diameter, the height of canine tooth ruhmkorff coil 2 is greater than 2 ~ 10mm of canine tooth 52 height, bus-bar 3 is used to supply current to be defeated by inducing coil, and one end of bus-bar 3 is connected with little tooth inducing coil 1 or canine tooth inducing coil 2, and the other end is connected with power supply, injector 7 is two of annular, be set on the inner ring of little tooth inducing coil 1 and canine tooth inducing coil 2 respectively, the inwall of injector 7 is provided with several spray holes 71, spray hole 71 is arranged on the inwall of injector 7 in staggered, the hatch bore diameter of spray hole 71 is 1.5 ~ 1.8mm, the bottom part aperture diameter of spray hole 71 is 3 ~ 3.5mm, and the spacing of adjacent two row's spray holes 71 is 3 ~ 4mm, and the axis of spray hole 71 and the axis angle of workpiece 5 are 25 ° ~ 45 °, quench fluid tube 6 is two groups up and down corresponding with injector 7, often group is provided with 4 quench fluid tubes, the interface of quench fluid tube 6 and injector 7 is uniformly distributed along the end face of injector 7, quench fluid tube 6 is laid along the direction of bus-bar 3 after injector 7 is drawn, and finally makes its other end be connected with liquid feed device, web plate 4 is provided with connecting hole 41, bus-bar 3 draw from the end of little tooth inducing coil 1 or canine tooth inducing coil 2 after in upwards, outwards right angle turnover, by web plate 4, bus-bar 3 and induction hardening transformer are fixedly clamped.
Principle of work and working process as follows: during use, workpiece 5 is placed on the rotating pan, the turning axle that driven by motor is connected with rotating disk rotates, make rotating disk moves and make the canine tooth 52 of workpiece 5 and little tooth 51 enter canine tooth inducing coil 2 respectively and little tooth inducing coil 1 heats, after canine tooth 52 and little tooth 51 are heated to quenching temperature, hardening liquid enters the injector 7 of ring-type by quench fluid tube 6, then is ejected on gear by spray hole 71 by hardening liquid, completes quenching.
The quenching technology parameter of the present embodiment is frequency 200kHz, and heat-up time is 2.2 ~ 3.0s, and injection cooling time is 2 ~ 3s, and coolant pressure is 0.35MPa.
See Fig. 5, Fig. 6, hardness and hardened layer inspection after quenching, workpiece technical requirements: HV
0.1680-820, HV
0.1the case depth 0.6-1.6mm of > 550.Assay: canine tooth 0.6mm place HV
0.1687-651-642, average 660, case depth is about 0.9mm; Little tooth 0.6mm place HV
0.1692-624-638, average 651, case depth is about 0.9mm.
The foregoing is only the preferred embodiment of the present invention, it should be pointed out that for the ordinary skill in the art, not departing under principle prerequisite of the present invention, can also make various deformation and improvement, this also should be considered as protection scope of the present invention.
Claims (7)
1. process the inductor block that two gear induction quenchings spray cooling simultaneously, it is characterized in that comprising:
Two inducing coils of heated parts are carried out for generation of magnetic field, corresponding with two gears of workpiece respectively;
Two groups are used for the bus-bar of supply current being defeated by inducing coil, and one end is connected with inducing coil, and the other end is connected with power supply;
Two are correspondingly respectively set on the inner ring of two inducing coils for spraying cooling fluid to cool the injector of workpiece, and the inwall of injector is provided with multiple spray hole;
The quench fluid tube be connected with two injectors respectively, one end is connected with injector, and the other end is connected with liquid feed device.
2. inductor block according to claim 1, it is characterized in that: described two inducing coils are respectively the little tooth inducing coil corresponding with the little tooth of workpiece and the canine tooth inducing coil corresponding with the canine tooth of workpiece, little tooth inducing coil and canine tooth inducing coil are annular is be arranged in parallel up and down, and distance is therebetween equal with the height between canine tooth with little tooth.
3. inductor block according to claim 2, it is characterized in that: the external diameter of described little tooth ruhmkorff coil is greater than 2 ~ 2.5mm of little tooth tooth top external diameter, the height of little tooth ruhmkorff coil is greater than 2 ~ 10mm of little tooth height, the external diameter of canine tooth ruhmkorff coil is greater than 2 ~ 2.5mm of canine tooth tooth top external diameter, and the height of canine tooth ruhmkorff coil is greater than 2 ~ 10mm of large tooth height.
4. inductor block according to claim 1, it is characterized in that: described injector is annular, be set on the inner ring of little tooth inducing coil and canine tooth inducing coil respectively, described spray hole is arranged on the inwall of injector in staggered, the hatch bore diameter of spray hole is 1.5 ~ 1.8mm, the bottom part aperture diameter of spray hole is 3 ~ 3.5mm, and the spacing of adjacent two row's spray holes is 3 ~ 4mm, and the axis of spray hole and the axis angle of workpiece are 25 ° ~ 45 °.
5. inductor block according to claim 1, is characterized in that: described quench fluid tube is two groups up and down corresponding with injector, and often group is provided with 2 ~ 5 quench fluid tubes, and the interface often organizing quench fluid tube and injector is uniformly distributed along injector.
6. inductor block according to claim 5, is characterized in that: described quench fluid tube is for often organizing 4, and described quench fluid tube is laid along the direction of bus-bar after injector is drawn.
7. the inductor block according to the arbitrary claim of claim 1 to 6, it is characterized in that: also comprise a plate, web plate is provided with connecting hole, described bus-bar draw from little tooth inducing coil or canine tooth inducing overhang after in upwards, outwards right angle turnover, by web plate, bus-bar and induction hardening transformer are fixedly clamped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310355983.6A CN104372156A (en) | 2013-08-15 | 2013-08-15 | Sensor for concurrently treating induction-quenching spray-cooling of two gears |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310355983.6A CN104372156A (en) | 2013-08-15 | 2013-08-15 | Sensor for concurrently treating induction-quenching spray-cooling of two gears |
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| CN104372156A true CN104372156A (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310355983.6A Pending CN104372156A (en) | 2013-08-15 | 2013-08-15 | Sensor for concurrently treating induction-quenching spray-cooling of two gears |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105936957A (en) * | 2015-12-19 | 2016-09-14 | 綦江祥和机械有限公司 | Dual-ring double quenching device for duplicate gear |
| CN108411094A (en) * | 2018-05-29 | 2018-08-17 | 浙江弘晟传动有限公司 | A kind of high-frequency induction device for sprocket wheel quenching |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105936957A (en) * | 2015-12-19 | 2016-09-14 | 綦江祥和机械有限公司 | Dual-ring double quenching device for duplicate gear |
| CN108411094A (en) * | 2018-05-29 | 2018-08-17 | 浙江弘晟传动有限公司 | A kind of high-frequency induction device for sprocket wheel quenching |
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Application publication date: 20150225 |
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