CN102690932A - Device and method for induction hardening of lower bracket clevis of heavy truck reducer assembly - Google Patents
Device and method for induction hardening of lower bracket clevis of heavy truck reducer assembly Download PDFInfo
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- CN102690932A CN102690932A CN2012102032243A CN201210203224A CN102690932A CN 102690932 A CN102690932 A CN 102690932A CN 2012102032243 A CN2012102032243 A CN 2012102032243A CN 201210203224 A CN201210203224 A CN 201210203224A CN 102690932 A CN102690932 A CN 102690932A
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- lower bracket
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- conservancy diversion
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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
The invention discloses a device for induction hardening of a lower bracket clevis of a heavy truck reducer assembly. An inductor heating ring is matched with a hole of the lower bracket clevis, which needs the induction hardening, located at the middle part in length direction of the hole and kept an equal distance from the wall of the hole; a positioning clamp comprises a positioning support sleeve and a flow guiding sleeve; a positioning support sleeve cavity is arranged at the middle part of the positioning support sleeve; a positioning inner spigot matched with the lower-part excircle and the lower end face of the lower bracket clevis is arranged at the upper part of the positioning support sleeve; a Morse taper head matched with a taper hole of a lower rotating power head of a hardening machine tool is arranged at the lower part of the positioning support sleeve; a positioning support sleeve hole is arranged on the wall of the positioning support sleeve cavity; the flow guiding sleeve is provided with a flow guiding sleeve cavity; the positioning support sleeve cavity is connected with the flow guiding sleeve cavity through the positioning support sleeve hole; a flow guiding sleeve hole is arranged on the wall of the flow guiding sleeve cavity; a conduit connected with the flow guiding sleeve hole is arranged on the outer wall of the flow guiding sleeve; and the outer surface of the wall of the positioning support sleeve cavity is in clearance fit with the inner surface of the wall of the flow guiding sleeve cavity. By means of the device disclosed by the invention, the hardness and the metallographic structure of the surface hardening of the inner hole of the lower bracket clevis are guaranteed.
Description
Technical field
The present invention relates to the heat treatment technics field, relate in particular to a kind of heavy truck speed reducer assembly lower bracket yoke induction hardening equipment and method.
Background technology
The lower bracket yoke is the major part on the heavy truck speed reducer assembly, and No. 45 steels of carbon are made in the employing.The axle of its endoporus and lower bracket links to each other, between relatively rotate, have sliding friction, can occur behind the life-time service wearing and tearing, so require both sides all to need intensified process to adapt to its higher requirement of strength.Comparing the induction quenching of the axle of lower bracket strengthens; Lower bracket connects the induction quenching of entry and strengthens difficult; Mainly be that if adopt induction quenching, this hole can't hold inductor block and water-jet simultaneously, also be difficult to the two is integrated in one because this bore dia is less.For this situation, general common way is behind induction heating, and the lower bracket yoke can be with the lathe quick travel; Inductor block is left from the hole of lower bracket yoke,, rapidly water-jet is inserted in the endoporus spray quenching or whole the input in the hardening liquid of lower bracket yoke quenched then by manual operation; But this kind method is to exist defective, and promptly induction quenching has such requirement, and workpiece will promptly be dropped in the hardening liquid after by induction heating to quench; Especially the induction quenching of endoporus, this is because induction heating is the surface heating, endoporus by the surface heating after; Heat is to spread from inside to outside with divergent shape, so the temperature drop of bore surface is very fast relatively, if the heating back is slow to the preceding operating speed during this period of time of quenching; Can occur that temperature drop is excessive, the bore surface temperature is low excessively; Can have influence on quality product even cause product defective, and in the present operation, having occurred workpiece just heats the back receives the manual operation speed to the preceding workpiece transfer speed of quenching influence; Can cause the bigger unstable of quality product, even not reach the product drawing requirement.
Summary of the invention
The object of the invention be exactly for solve induction quenching that prior art exists receive operating speed slow influence the time temperature drop temperature excessive, heating to occur low excessively, cause the quality after the quenching can not satisfy product requirement, product low problem in work-ing life; A kind of heavy truck speed reducer assembly lower bracket yoke induction hardening equipment and method have been proposed; Provide a kind of heavy truck lower bracket yoke bore surface induction hardened process method; Solved the cooling problem after lower bracket connects the heating of entry induction quenching, hardness, metallographic structure that its bore surface is quenched all reach product requirement, have improved product work-ing life.
To achieve these goals, the present invention adopts following technical scheme:
A kind of heavy truck speed reducer assembly lower bracket yoke induction hardening equipment; Comprise ultrasonic frequency power supply, vertical quenching machine, output transformer, inductor block, positioning fixture; Inductor block comprises inductor block heating collar, inductor block omnibus bar; Inductor block is connected with the ultrasonic frequency power supply through output transformer, be provided with the gap that the confession hardening liquid flows through between the hole wall of inductor block heating collar and the induction hardened lower bracket yoke of needs, be positioned at the hole length direction the middle part and with the hole wall maintenance equidistance in this hole; Said positioning fixture comprises location holder cover, water conservancy diversion cover; Holder cover middle part, said location is provided with location holder cover cavity, location female end, bottom that top is provided with matches with lower bracket yoke bottom cylindrical and lower surface and is provided with the Morse taper shank that cooperates with the taper hole of the following rotary power head of quenching machine; Location holder cover cavity circumferential wall is provided with location holder trepanning; Said water conservancy diversion is arranged with water conservancy diversion cover cavity; Location holder trepanning will be located holder cover cavity and will be connected with water conservancy diversion cover cavity, and water conservancy diversion cover cavity circumferential wall is provided with the water conservancy diversion trepanning, and water conservancy diversion cover peripheral outer wall is provided with the conduit that is connected with the water conservancy diversion trepanning; Conduit links to each other with the quench cooled fluid circulation of lathe, and the outer cylinder surface contact site that cavity wall is overlapped in water conservancy diversion cover cavity upper wall, lower wall and location holder is circular hole, is running fit between the two.
Location holder cover cavity circumferential wall upper edge all round the horizon is laid with four location holder trepannings, and water conservancy diversion cover cavity circumferential wall upper edge all round the horizon is laid with three water conservancy diversion trepannings.Said location holder cover adopts No. 45 steels to do.
Four minimum sectional areas of locating holder trepanning sectional area sum and inductor block heating collar and lower bracket yoke hole wall gap on three water conservancy diversion trepanning sectional area sums on the described water conservancy diversion cover cavity circumferential wall, the location holder cover cavity circumferential wall are the relation that diminishes successively.To guarantee to flow to the hardening liquid pressure of lower bracket yoke hole wall.
Said inductor block heating collar adopts copper tube to make, and is the two circle structures of the spiral of axle center level.Be connected with the cyclic softening water coolant that has certain pressure in the copper pipe, provide by quenching machine.
Said inductor block heating collar place is provided with the magnetizer from dry forming.
Said water conservancy diversion cover adopts brass to make.The magneticline of force that brass has reduced slow scattering heats it.
Said water conservancy diversion puts and is provided with dog link, and the dog link the other end contacts with bed piece.Dog link is welded on water conservancy diversion and puts, and under the working order, because the one of which end leans against on the immobilized lathe bed, it plays the effect of water conservancy diversion cover with the rotation of location holder cover that stop;
Said dog link adopts brass to make.
The walking path of quench cooled liquid is: the hardening liquid recycle system of lathe is connected on the outer conduit of water conservancy diversion cover through rubber hose; Hardening liquid gets into through this conduit and makes progress after water conservancy diversion overlaps cavity and locatees holder cover cavity; Upwards flow in gap along between inductor block and lower bracket yoke inner hole wall; Quench cooled lower bracket yoke endoporus, and overflow from the upper end in this hole.
The equipment of said processing lower bracket yoke is made up of ultrasonic frequency power supply GP100/50KHz and a vertical single shaft digital-controlled quenching machine.The work program of establishment lower bracket yoke on lathe.Said tempering stove is a well formula tempering stove, and model is RJJ45-6.
A kind of heavy truck speed reducer assembly lower bracket yoke induction hardening method may further comprise the steps:
1) at first place the location holder to overlap the location female end cooperation position on top the lower bracket yoke; Gap between adjustment inductor block heating collar and the lower bracket yoke hole wall is set at Working position to equating and the inductor block heating collar is positioned at the middle part of hole length direction with this position in machine tool program; Lathe is dropped to be positioned at inductor block heating collar below, can the conveniently assemble and disassemble workpiece the position, this position is made as starting position in machine tool program;
2) press the program loop button, lathe cycle operation program begins, the lathe band positioning fixture and on the lower bracket yoke rise to Working position from starting position;
3) heating beginning, automatic time delay and timing make the endoporus of lower bracket yoke reach Heating temperature, and timing finishes to stop heating;
When 4) stopping to heat, quench cooled liquid supplies with automatically and connects, quench beginning and self-clocking;
5) timing finishes quench liquid and stops supply, and quench cooled finishes, and the lathe band the lower bracket yoke and dropped to starting position from heating location, and the quenching cycling program is accomplished, and promptly accomplishes quenching process;
6) in well formula tempering stove, carry out tempering behind the taking-up lower bracket yoke.
Principle of work of the present invention: X-former, inductor block, positioning fixture; Inductor block comprises inductor block heating collar, inductor block omnibus bar; Inductor block is connected with the ultrasonic frequency power supply through output transformer; The inductor block heating collar is positioned at the central authorities that the lower bracket yoke needs the induction quenching hole, and promptly the bore length direction is positioned at the middle part, and the aperture upwards keeps equidistance with hole wall; Said positioning fixture comprises location holder cover, water conservancy diversion cover; Holder cover middle part, said location is provided with location holder cover cavity, location female end, bottom that top is provided with matches with lower bracket yoke bottom cylindrical, lower surface and is provided with the Mohs that cooperates with the taper hole of the following rotary power head of quenching machine and bores for No. 3; Location holder cover cavity circumferential wall is provided with location holder trepanning; Holder cover in location also drives the lower bracket yoke rotation on it simultaneously along with rotary power is first with rotation down during work.Said water conservancy diversion is arranged with water conservancy diversion cover cavity; Location holder trepanning will be located holder cover cavity and will be connected with water conservancy diversion cover cavity; Water conservancy diversion cover cavity circumferential wall is provided with the water conservancy diversion trepanning; Water conservancy diversion cover peripheral outer wall is provided with the conduit that is connected with the water conservancy diversion trepanning, and conduit links to each other with the quench cooled fluid circulation of lathe, the water conservancy diversion cover upper and lower wall of cavity with locate that to hold in the palm the outer cylinder surface contact site that overlaps cavity wall be circular hole, be running fit between the two.During concrete work; At first the lower bracket yoke is placed within the positioning fixture; Gap between the heating collar of adjustment lower bracket connection entry and inductor block is to impartial; And the inductor block heating collar is positioned at the middle part that is heated the hole length direction, and in machine tool program, setting this position is the heating location of induction heating; Manipulation lathe band the lower bracket yoke and is fallen from heating location; The starting position of locating to the heating collar below of inductor block of being convenient to the loading, unloading workpiece; Press the program loop button, lathe cycle operation program begins, the lathe band positioning fixture and on the lower bracket yoke rise to heating location from starting position; Heating beginning, self-clocking and time-delay; The output rating of ultrasonic frequency power supply is in the processing requirement scope at this moment, and timing is arrived, and the endoporus of lower bracket yoke stops heating after reaching Heating temperature; Simultaneously, lathe is connected hardening liquid automatically and is supplied with, timing and automatic time delay, and quench cooled lower bracket yoke endoporus, timing finishes to cooling, and this moment, lower bracket yoke endoporus was cooled to preset temperature; Hardening liquid is a tap water, and it is to be provided by the incidental hardening liquid cooling system of equipment, and temperature and pressure is controlled in the processing requirement scope; The lathe band the lower bracket yoke and is dropped to starting position from heating location, and whole quenching cycle operation program is accomplished, and has promptly accomplished the quenching process of workpiece.Carry out tempering after taking out the lower bracket yoke, promptly insert in the RJJ-45-6 well formula tempering stove and heat, to the insulation of temperature back, the back air cooling of coming out of the stove is to normal temperature.The metallographic structure of the surface hardness through above step lower bracket yoke endoporus, case depth, hardened face reaches the product drawing requirement.
Beneficial effect of the present invention: after having solved lower bracket and connecting the heating of entry induction quenching, can promptly change refrigerative problem in the hardening liquid over to, hardness, metallographic structure that its bore surface is quenched all reach product requirement, have improved product work-ing life.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the vertical view of the induction hardened sensor structure synoptic diagram of lower bracket yoke of the present invention;
Among the figure, 1. inductor block heating collar, 2. lower bracket yoke, 3. water conservancy diversion cover, 4. dog link, 5. location holder cover, 6. from the magnetizer of dry forming, 7. conduit, 8. inductor block omnibus bar, 9. location holder trepanning, 10. location holder cover cavity, 11. water conservancy diversion cover cavity, 12. seams.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
A kind of heavy truck speed reducer assembly lower bracket yoke induction hardening equipment; In conjunction with Fig. 1; Fig. 2 comprises ultrasonic frequency power supply, vertical quenching machine, output transformer, inductor block, positioning fixture, and inductor block comprises inductor block heating collar 1, inductor block omnibus bar 8; Inductor block is connected with the ultrasonic frequency power supply through output transformer; Inductor block heating collar 1 and need to be provided with the gap that supplies hardening liquid to flow through between the hole wall of induction hardened lower bracket yoke 2, its size is 2-4mm, promptly inductor block heating collar 1 and lower bracket yoke 2 need induction hardened hole to form running fit, are positioned at the middle part of hole length direction and keep equidistance with the hole wall in this hole; Said positioning fixture comprises location holder cover 5, water conservancy diversion cover 3; Holder cover 5 middle parts, said location are provided with location holder cover cavity 10, location female end 12, bottom that top is provided with matches with lower bracket yoke 2 bottom cylindricals, lower surface and are provided with No. 3 taper shanks of Mohs that cooperate with the taper hole of the following rotary power head of quenching machine; Location holder cover cavity circumferential wall upper edge all round the horizon is laid with four location holder trepannings 9, and said location holder cover adopts No. 45 steels to do.Location holder cover 5 is along with rotary power is first with rotation down during work; Also drive simultaneously the lower bracket yoke rotation on it, lower bracket yoke bottom is the running fit of 0.1mm to 0.2mm as bore portion in localized excircle part and the location holder cover 5 top seams.Said water conservancy diversion cover 3 is provided with water conservancy diversion cover cavity 11; Location holder trepanning 9 will be located holder cover cavity 10 and will be connected with water conservancy diversion cover cavity 11; Water conservancy diversion cover cavity circumferential wall upper edge all round the horizon is laid with three water conservancy diversion trepannings, and it is circular hole that the outer cylinder surface contact site of cover cavity wall is held in the palm in water conservancy diversion cover cavity upper wall, lower wall and location, be the running fit of 0.05mm to 0.1mm between the two.Water conservancy diversion cover outer wall is provided with the conduit 7 that is connected with the water conservancy diversion trepanning; Conduit 7 links to each other with the quench cooled fluid circulation of lathe; Four minimum sectional areas of locating holder trepanning sectional area sum, inductor block heating collar and lower bracket yoke hole wall gaps on the cavity circumferential wall are overlapped in three water conservancy diversion trepanning sectional area sums, location holders on the described water conservancy diversion cover cavity circumferential wall, exist the relation that diminishes successively.To guarantee to flow to the hardening liquid pressure of lower bracket yoke hole wall.Conduit 7 welds with the outer wall of water conservancy diversion cover cavity wall.Said inductor block heating collar 1 adopts
copper tube to make, and is the two circle structures of the spiral of axle center level.Be connected with the softening water coolant of round-robin in the copper pipe, softening water coolant is provided by quenching machine, and pressure is 0.4-0.5Mpa, and temperature is 0-35 ℃.Said inductor block heating collar place is provided with the magnetizer 6 from dry forming; It mainly is made up of 20% epoxy resin+70% powdered magnetic+10% solidifying agent; Two inductor block omnibus bars 8 compress with bolt with the intermediate frequency power supply output transformer and link to each other, and arrow D is connected with softening cooling water intakeoutfall and direction in the copper pipe of inductor block.Said water conservancy diversion cover adopts brass to make, and brass has avoided the magneticline of force of slow scattering that it is heated.Said water conservancy diversion puts and is provided with dog link 4; Dog link 4 the other ends contact with bed piece, and dog link is welded on water conservancy diversion and puts, under the working order; The dog link the other end leans against on the immobilized lathe bed, plays the effect that prevention water conservancy diversion cover rotates with location holder cover, and said dog link adopts brass to make.The equipment of said processing lower bracket yoke is made up of ultrasonic frequency power supply GP100/50KHz and a vertical single shaft digital-controlled quenching machine, the work program of establishment lower bracket yoke on lathe.Tempering stove is a well formula tempering stove, and model is RJJ-45-6.The walking path of quench cooled liquid is: the hardening liquid recycle system of lathe is connected on the outer conduit of water conservancy diversion cover through rubber hose; Hardening liquid gets into through this conduit and makes progress after water conservancy diversion overlaps cavity and locatees holder cover cavity; Upwards flow in gap along between inductor block and lower bracket yoke inner hole wall; Quench cooled lower bracket yoke endoporus, and overflow from the upper end in this hole.In conjunction with Fig. 1 to Fig. 2; During work, A arrow indication is the walking path of quench cooled liquid among the figure, and the hardening liquid recycle system of lathe is connected on the conduit 7 outside the water conservancy diversion cover 3 through rubber hose; Hardening liquid overlaps through conduit 7 entering water conservancy diversion and makes progress after 3 cavitys overlap 5 cavitys with the location holder; Upwards flow in gap along between inductor block and lower bracket yoke 2 inner hole walls, quench cooled lower bracket yoke endoporus, and overflow from the upper end in this hole; B is location holder cover 5 sense of rotation with the lower bracket yoke, and diameter dimension C indication zone is lower bracket yoke bore surface zone, just needs induction hardened zone.Water conservancy diversion cover cavity in location holder cover cavity holds in the palm trepanning and is located at its outer water conservancy diversion cover 3 through the location is connected, and water conservancy diversion overlaps cavity and is connected with conduit through the water conservancy diversion trepanning, realizes linking to each other with the quench cooled liquid system of lathe.
A kind of heavy truck speed reducer assembly lower bracket yoke induction hardening method; May further comprise the steps: the location female end cooperation position that 1) at first the lower bracket yoke is placed holder cover top, location; Gap between adjustment inductor block heating collar and the lower bracket yoke hole wall is set at Working position to equating and the inductor block heating collar is positioned at the middle part of hole length direction with this position in machine tool program; Lathe is dropped to be positioned at inductor block heating collar below, can the conveniently assemble and disassemble workpiece the position, this position is made as starting position in machine tool program; 2) press the program loop button, lathe cycle operation program begins, the lathe band positioning fixture and on the lower bracket yoke rise to Working position from starting position; 3) heating beginning, automatic time delay and timing make the endoporus of lower bracket yoke reach Heating temperature, and timing finishes to stop heating; When 4) stopping to heat, quench cooled liquid supplies with automatically and connects, quench beginning and self-clocking; 5) timing finishes quench liquid and stops supply, and quench cooled finishes, and the lathe band the lower bracket yoke and dropped to starting position from heating location, accomplishes quenching cycle operation program, promptly accomplishes quenching process; 6) carry out tempering behind the taking-up lower bracket yoke.In conjunction with Fig. 1; Fig. 2; During concrete work, at first lower bracket yoke 2 is placed within the positioning fixture, the gap between the heating collar 1 of adjustment lower bracket yoke 2 and inductor block is to impartial; And the inductor block heating collar is positioned at the middle part that is heated the hole length direction, and in machine tool program, setting this position is the heating location of induction heating; Handling the lathe band lower bracket yoke 2 and falls from heating location; To the starting position of being convenient to the loading, unloading workpiece that heating collar 1 below of inductor block is located, press the program loop button, lathe cycle operation program begins; The lathe band positioning fixture and on the lower bracket yoke rise to heating location from starting position; Heating beginning, the self-clocking and the 3-5s that delays time, this moment, the output rating of ultrasonic frequency power supply was 32-46kw/h, timing is arrived; The endoporus of lower bracket yoke reaches Heating temperature 860-900 ℃, stops heating; Simultaneously, lathe is connected hardening liquid automatically and is supplied with, timing and automatic time delay 8-14s, and quench cooled lower bracket yoke endoporus, timing finishes to cooling, and at this moment, lower bracket yoke endoporus is cooled to below 100 ℃; Hardening liquid is the tap water of controlled temperature in 10-40 ℃ of scope, and it is to be provided by the incidental hardening liquid cooling system of equipment; The lathe band the lower bracket yoke and is dropped to starting position from heating location, and whole quenching cycle operation program is accomplished, and has promptly accomplished the quenching process of workpiece.Carry out tempering after taking out the lower bracket yoke, promptly insert 180 ℃ of heating in the RJJ-45-6 well formula tempering stove, to temperature back insulation 120min, the back air cooling of coming out of the stove is to normal temperature.Surface hardness through above step lower bracket yoke endoporus reaches >=HRC50, and case depth is 1-3mm.The metallographic structure of hardened face is the M3-7 level, reaches the product drawing requirement.
Though the above-mentioned accompanying drawing that combines is described the embodiment of invention; But be not restriction to protection domain of the present invention; One of ordinary skill in the art should be understood that; On the basis of technical scheme of the present invention, those skilled in the art need not pay various modifications that creative work can make or distortion still in protection scope of the present invention.
Claims (10)
1. heavy truck speed reducer assembly lower bracket yoke induction hardening equipment; It is characterized in that; Comprise ultrasonic frequency power supply, vertical quenching machine, output transformer, inductor block, positioning fixture; Inductor block comprises inductor block heating collar, inductor block omnibus bar; Inductor block is connected with the ultrasonic frequency power supply through output transformer, be provided with the gap that the confession hardening liquid flows through between the hole wall of inductor block heating collar and the induction hardened lower bracket yoke of needs, be positioned at the hole length direction the middle part and with the hole wall maintenance equidistance in this hole; Said positioning fixture comprises location holder cover, water conservancy diversion cover; Holder cover middle part, said location is provided with location holder cover cavity, location female end, bottom that top is provided with matches with lower bracket yoke bottom cylindrical and lower surface and is provided with the Morse taper shank that cooperates with the taper hole of the following rotary power head of quenching machine; Location holder cover cavity circumferential wall is provided with location holder trepanning; Said water conservancy diversion is arranged with water conservancy diversion cover cavity; Location holder trepanning will be located holder cover cavity and will be connected with water conservancy diversion cover cavity, and water conservancy diversion cover cavity circumferential wall is provided with the water conservancy diversion trepanning, and water conservancy diversion cover peripheral outer wall is provided with the conduit that is connected with the water conservancy diversion trepanning; Conduit links to each other with the quench cooled fluid circulation of lathe, and the outer cylinder surface contact site that cavity wall is overlapped in water conservancy diversion cover cavity upper wall, lower wall and location holder is circular hole, is running fit between the two.
2. heavy truck speed reducer assembly lower bracket yoke induction hardening equipment as claimed in claim 1; It is characterized in that; Said location holder cover cavity circumferential wall upper edge all round the horizon is laid with four location holder trepannings, and water conservancy diversion cover cavity circumferential wall upper edge all round the horizon is laid with three water conservancy diversion trepannings.
3. heavy truck speed reducer assembly lower bracket yoke induction hardening equipment as claimed in claim 2 is characterized in that, said water conservancy diversion cover cavity middle part is provided with the assist location plate, and the assist location plate is provided with centre hole, and centre hole cooperates with the top periphery of location holder cover.
4. heavy truck speed reducer assembly lower bracket yoke induction hardening equipment as claimed in claim 2; It is characterized in that; Four minimum sectional areas of locating holder trepanning sectional area sum and inductor block heating collar and lower bracket yoke hole wall gap on three water conservancy diversion trepanning sectional area sums on the described water conservancy diversion cover cavity circumferential wall, the location holder cover cavity circumferential wall are the relation that diminishes successively.
5. heavy truck speed reducer assembly lower bracket yoke induction hardening equipment as claimed in claim 1; It is characterized in that; The copper tube that said inductor block heating collar adopts
is made, and is the two circle structures of the spiral of axle center level.
6. heavy truck speed reducer assembly lower bracket yoke induction hardening equipment as claimed in claim 1 is characterized in that said inductor block heating collar place is provided with the magnetizer from dry forming.
7. heavy truck speed reducer assembly lower bracket yoke induction hardening equipment as claimed in claim 1 is characterized in that, said water conservancy diversion cover adopts brass to make.
8. heavy truck speed reducer assembly lower bracket yoke induction hardening equipment as claimed in claim 1 is characterized in that said water conservancy diversion puts and is provided with dog link, and the dog link the other end contacts with bed piece.
9. 8 heavy truck speed reducer assembly lower bracket yoke induction hardening equipment as claimed in claim is characterized in that, said dog link adopts brass to make.
10. heavy truck speed reducer assembly lower bracket yoke induction hardening method may further comprise the steps:
1) at first place the location holder to overlap the location female end cooperation position on top the lower bracket yoke; Gap between adjustment inductor block heating collar and the lower bracket yoke hole wall is set at Working position to equating and the inductor block heating collar is positioned at the middle part of hole length direction with this position in machine tool program; Lathe is dropped to be positioned at inductor block heating collar below, can the conveniently assemble and disassemble workpiece the position, this position is made as starting position in machine tool program;
2) press the program loop button, lathe cycle operation program begins, the lathe band positioning fixture and on the lower bracket yoke rise to Working position from starting position;
3) heating beginning, automatic time delay and timing make the endoporus of lower bracket yoke reach Heating temperature, and timing finishes to stop heating;
When 4) stopping to heat, quench cooled liquid supplies with automatically and connects, quench beginning and self-clocking;
5) timing finishes quench liquid and stops supply, and quench cooled finishes, and the lathe band the lower bracket yoke and dropped to starting position from heating location, accomplishes quenching cycle operation program, promptly accomplishes quenching process;
6) carry out tempering behind the taking-up lower bracket yoke;
7) to temperature back insulation for some time, the back air cooling of coming out of the stove is to normal temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102032243A CN102690932A (en) | 2012-06-19 | 2012-06-19 | Device and method for induction hardening of lower bracket clevis of heavy truck reducer assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102032243A CN102690932A (en) | 2012-06-19 | 2012-06-19 | Device and method for induction hardening of lower bracket clevis of heavy truck reducer assembly |
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| CN102690932A true CN102690932A (en) | 2012-09-26 |
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| CN2012102032243A Pending CN102690932A (en) | 2012-06-19 | 2012-06-19 | Device and method for induction hardening of lower bracket clevis of heavy truck reducer assembly |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105441657A (en) * | 2015-12-11 | 2016-03-30 | 安徽精科机器有限公司 | High-frequency inner sphere quenching device and application method thereof |
| CN113755669A (en) * | 2021-10-25 | 2021-12-07 | 南京中盛铁路车辆配件有限公司 | Railway wagon coupler tail frame pin hole induction quenching device and method of superaudio power supply |
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| CN101654723A (en) * | 2008-08-21 | 2010-02-24 | 临沂业隆通用机械有限公司 | Method for eliminating cracks on surface of bearing axle by induction heating |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105441657A (en) * | 2015-12-11 | 2016-03-30 | 安徽精科机器有限公司 | High-frequency inner sphere quenching device and application method thereof |
| CN113755669A (en) * | 2021-10-25 | 2021-12-07 | 南京中盛铁路车辆配件有限公司 | Railway wagon coupler tail frame pin hole induction quenching device and method of superaudio power supply |
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Application publication date: 20120926 |