CN101942553B - Offline or online integral quenching/tempering thermal treatment production line for standard steel rail and profiled steel rail - Google Patents
Offline or online integral quenching/tempering thermal treatment production line for standard steel rail and profiled steel rail Download PDFInfo
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- CN101942553B CN101942553B CN201010290357XA CN201010290357A CN101942553B CN 101942553 B CN101942553 B CN 101942553B CN 201010290357X A CN201010290357X A CN 201010290357XA CN 201010290357 A CN201010290357 A CN 201010290357A CN 101942553 B CN101942553 B CN 101942553B
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Abstract
The invention relates to an offline or online integral quenching/tempering thermal treatment production line for a standard steel rail and a profiled steel rail, which is structurally characterized by comprising a chassis, an upper compression roller support, electromagnetic induction heaters, a steel rail, upper compression rollers, an upper compression roller adjusting device, lower pinch rollers, an air and water injection device, an infrared thermodetector, a bearing block, a frequency conversion and speed regulation speed reducer, a charging end and discharging end live-roll table 12 and a tempering induction heater. The invention has the advantage that the steel rail can not deflect when moving in the middle. Frequency conversion and speed regulation are adopted by a driving/driven roller set and the pinch roller. A plurality of pairs of pinch rolls are formed by using the upper compression rollers and the lower pinch rollers to forcibly pinch the steel rail to limit the deformation of the steel rail; the height of the upper compression rollers can be regulated; the shifting speed required by a heating and spray quenching process is satisfied by adopting the frequency conversion and the speed regulation speed, and two electromagnetic induction heaters are arranged to heat the steel rail to reach the process temperature. The infrared thermodetector can monitor the heating final temperature of the steel rail, the temperature of the steel rail can be stabilized in the temperature range of the quenching process, and the heating temperature is even.
Description
Technical field
What the present invention relates to is standard rail, compromise rail off-line or the online integral body tempering heat treatment production line (standard rail, compromise rail off-line or online electromagnetic induction heating, spray pressurized air and water rail head tread, rail body and the flange of rail quench tempering heat treatment production line) of quenching.Belong to the rail tempering heat treatment technical field of quenching.
Background technology
Technology is the utilization standard gauge both at home and abroad; Adopt the jet or single way of spraying water both at home and abroad; Transmission, aligning separately are difficult for eliminating internal stress; Add and pine for being difficult for heating up simultaneously, do not have the measure that evenly heats up.
Summary of the invention
The present invention proposes is a kind of standard rail, compromise rail off-line or online electromagnetic induction heating, spray pressurized air and water at rail head tread, rail body and the flange of rail tempering heat treatment production line of quenching; Its purpose is intended to make rail head tread, rail body, flange of rail portion to reach technological temperature, reaches the degree of depth and the metallographic structure requirement of required hardened layer.
Technical solution of the present invention: it is characterized in that comprising underframe, last pressure roller wheeling supporting frame, electromagnetic induction heater; Rail, on compress running roller, last pressure roller wheel setting device; The bottom pinch roll wheel, jet waterworks, infrared thermometer; Chock, speed control by frequency variation step-down gear, material loading end, blanking end live rollers, tempering induction heater; Wherein the bottom pinch roll wheel is contained in the chock, and chock is fixed on the underframe; Bottom pinch roll is taken turns end dress water-cooled swivel joint, logical water quench rolling axle, and the other end connects with the speed control by frequency variation step-down gear through shaft coupling; Last pressure roller wheel setting device supports and compresses the height that compresses running roller on running roller and the adjustable; On compress the logical water quench rolling axle of running roller one end dress water-cooled swivel joint; On compress running roller the other end through universal coupling with the speed control by frequency variation step-down gear and on compress running roller and link up; On compress in the bearing that running roller is contained in pressure roller wheel setting device, last pressure roller is taken turns setting device and is installed in the guide rail of pressure roller wheeling supporting frame, last pressure roller wheeling supporting frame is fixed by bolts on the underframe; Electromagnetic induction heater and jet waterworks are fixed on the underframe; In the electromagnetic induction heater exit infrared thermometer is installed, is used for monitoring rail heating finishing temperature; Electromagnetic induction heater and infrared thermometer are installed on the underframe, and the adjustable coil up and down and the position between the rail.
Advantage of the present invention: can deflection when rail is moved in the centre.Principal and subordinate's action roller wheels, pinch running roller and adopt speed control by frequency variation.Because rail can produce flexural deformation after electromagnetic induction heating and jet spray quenching; So use and compress running roller and bottom pinch roll wheel and form several to pinch roll; Pressure pinches rail and limits the rail distortion; On compress running roller adjustable height, running roller all adopts speed control by frequency variation to satisfy the quench translational speed of processing requirement of heating, spray, last district establishes two of electromagnetic induction heaters and heats rail and reach technological temperature.In the inductor block exit infrared thermometer is installed, is used for monitoring the heating finishing temperature of rail, regulate heating power, rail temperature is stabilized in the quenching technology TR, and guarantee that Heating temperature is even through temperature.Adopt the electromagnetic-induction heating method advantage: the efficient height is energy-conservation, pollution-free, no noxious gas emission, environmental protection.Rate of heating is fast, and oxide debris is few, and the starting material loss is few.Because rate of heating is exceedingly fast, and can reach the grain ultrafining effect, improve obdurability.Quench cooled technology requires different to various materials.Existing technology is a kind of to be to use air cooling, and another kind is to use water cooling, and this device usefulness gas, water combine and adjustable reaches better effects.Even heating reduces distortion.Owing to can change rail position in coil, just can adjust the heat-up rate at each position of rail, reach the as far as possible little requirement of rail deflection.Adopt manyly, make the rail after the processing not need the straightener aligning, can save production site and surpass the many length of rail twice pinching the distortion of running roller when limiting heating, quenching, tempering.Economize about 6,000 ten thousand yuan of next rail straghtener simultaneously.
Description of drawings
Accompanying drawing 1 is an axle side structure synoptic diagram of the present invention.
Accompanying drawing 2 is main TV structure synoptic diagram of the present invention.
Accompanying drawing 3 is left TV structure synoptic diagram of Fig. 2.
Among the figure 1 is underframe, the 2nd, and last pressure roller wheeling supporting frame, the 3rd, electromagnetic induction heater, the 4th, rail; The 5th, on compress running roller, the 6th, last pressure roller wheel setting device, the 7th, bottom pinch roll wheel; The 8th, jet waterworks, the 9th, infrared thermometer (FR1A type), the 10th, chock; The 11st, speed control by frequency variation step-down gear, the 12nd, material loading end, blanking end live rollers, the 13rd, tempering induction heater.
Embodiment:
The contrast accompanying drawing, its structure comprises underframe 1, last pressure roller wheeling supporting frame 2, electromagnetic induction heater 3; Rail 4, on compress running roller 5, last pressure roller wheel setting device 6; Bottom pinch roll wheel 7, jet waterworks 8, infrared thermometer 9; Chock 10, speed control by frequency variation step-down gear 11, material loading, blanking live rollers 12, tempering induction heater 13; Wherein bottom pinch roll wheel 7 is contained in the chock 10, and chock 10 is fixed on the underframe 1; Bottom pinch roll is taken turns 7 one ends dress water-cooled swivel joint, logical water quench rolling axle, and the other end connects with speed control by frequency variation step-down gear 11 through shaft coupling; Last pressure roller wheel setting device 6 supports and compresses the height that compresses running roller 5 on running roller 5 and the adjustable; On compress the logical water quench rolling axle of running roller 5 one ends dresses water-cooled swivel joint; On compress running roller 5 the other end through universal coupling with speed control by frequency variation step-down gear 11 with on compress running roller 5 and link up; On compress running roller 5 and be contained in the pressure roller wheel setting device 6, and be installed in the pressure roller wheeling supporting frame 2, last pressure roller wheeling supporting frame 2 is fixed by bolts on the underframe 1; Electromagnetic induction heater 3 is fixed on the underframe 1 with jet waterworks 8.In electromagnetic induction heater 3 exits infrared thermometer 9 (FR1A type) is installed, is used for monitoring rail heating finishing temperature; Electromagnetic induction heater 3 is installed on the underframe 1 with infrared thermometer 9, but can regulate and rail 4 between the position.
Infrared thermometer carries out noncontact temperature thermometric according to the thermal radiation of the outer wave band part of testee surface red when infrared measurement of temperature.
Electromagnetic induction heating coil inner chamber in the electromagnetic induction heater is similar with the rail shape, and can the rail head flange of rail evenly heated up the position simultaneously up and down and between the rail through regulating induction heater, reduces flexural deformation.
Jet employing pressurized air in the jet waterworks; Nozzle connects with source of the gas with push-in flexible pipe, and hose nozzle is equipped with at the place at spout, utilizes the principle of negative pressure that produces around the high speed jet stream to form jet waterworks 8 by 4～8 groups; Every group has 45～75 shower nozzles; The pitch angle of shower nozzle and rail is 50 °～80 °, and 60～120mm gap is arranged between every group, the adjustable gaps between jet, water device and the rail.
The warm eventually infrared thermometer of survey time fire heating is installed in the rear portion of tempering induction heater, and blanking live rollers device is at discharge port.
Respectively one group of material loading end, blanking end live rollers 12, live rollers is made up of active roll and driven roll wheel, and the quantity of active roll and driven running roller is decided according to rail length, and purpose is supporting rail and transmission rail.Active roll is by motor, sprocket wheel, chain gear, and driven running roller plays a supportive role.Rail is transported on roller-way in the electromagnetic induction heating district entrance pinch roll (like accompanying drawing).Groove than the wide 4～8mm of the flange of rail, dark 6～12mm is arranged on this group running roller, and compressing running roller 5 and bottom pinch roll wheel 7 on the pinch roll also has the groove than rail head and the wide 4～8mm of the flange of rail, dark 6～12mm,
Infrared measurement of temperature is to carry out noncontact temperature thermometric according to the thermal radiation of the outer wave band part of testee surface red.Compare with contact thermography and to be characterized in: accuracy does not have influence to temperature, and because of not contacting high temp objects, testing tool is not fragile and durable in use.The electromagnetic induction heater inner chamber is similar with the rail shape, and the position is evenly heated up the rail head flange of rail simultaneously between adjustable and the rail, thereby reduces flexural deformation.Jet employing pressurized air, nozzle connects with source of the gas with push-in flexible pipe.At spout hose nozzle is housed, utilizes the principle of negative pressure that produces around the high speed jet stream to spray water.As long as change the flow of compressed air pressure, thereby reach the speed of cooling that needs with regard to the adjustable G&W.Jet waterworks 8 is formed (it is fixed to come according to output) by many groups.Being made up of a plurality of shower nozzles for every group, certain interval is arranged between every group, is to be the spray that the air water that makes last group of ejection does not influence one group of the back effect of quenching.Gap between jet waterworks and the rail is adjustable, and tempering induction heater 13 is installed on the underframe 1.And the gap between adjustable and the rail 4.The warm eventually infrared thermometer 9 of survey time fire heating is installed in the rear portion of tempering induction heater 13.Blanking live rollers 12 devices are at discharge port.
Claims (4)
1. standard rail, compromise rail off-line or online electromagnetic induction heating, spray pressurized air and water is characterized in that comprising underframe, last pressure roller wheeling supporting frame, electromagnetic induction heater at rail head tread, rail body and the flange of rail tempering heat treatment production line of quenching; Rail, on compress running roller, last pressure roller wheel setting device; The bottom pinch roll wheel, jet waterworks, infrared thermometer; Chock, speed control by frequency variation step-down gear, material loading end, blanking end live rollers, tempering induction heater; Wherein the bottom pinch roll wheel is contained in the chock, and chock is fixed on the underframe; Bottom pinch roll is taken turns end dress water-cooled swivel joint, logical water quench rolling axle, and the other end connects with the speed control by frequency variation step-down gear through shaft coupling; Last pressure roller wheel setting device supports and compresses the height that compresses running roller on running roller and the adjustable; On compress the logical water quench rolling axle of running roller one end dress water-cooled swivel joint; On compress running roller the other end through universal coupling with the speed control by frequency variation step-down gear and on compress running roller and link up; On compress in the bearing that running roller is contained in pressure roller wheel setting device, last pressure roller is taken turns setting device and is installed in the guide rail of pressure roller wheeling supporting frame, last pressure roller wheeling supporting frame is fixed by bolts on the underframe; Electromagnetic induction heater and jet waterworks are fixed on the underframe; In the electromagnetic induction heater exit infrared thermometer is installed, is used for monitoring rail heating finishing temperature; Electromagnetic induction heater and infrared thermometer are installed on the underframe, and the adjustable coil up and down and the position between the rail; Jet employing pressurized air in the described jet waterworks, nozzle connects with source of the gas with push-in flexible pipe, and hose nozzle is equipped with at the place at spout; Utilize the principle of negative pressure that produces around the high speed jet stream to spray water; Jet waterworks (8) is formed by 4～8 groups, and every group has 45～75 shower nozzles, and the pitch angle of shower nozzle and rail is 50 °～80 °; 60～120mm gap is arranged, the adjustable gaps between jet waterworks (8) and the rail between every group.
2. standard rail according to claim 1, compromise rail off-line or online electromagnetic induction heating, spray pressurized air and water are at rail head tread, rail body and the flange of rail tempering heat treatment production line of quenching; It is characterized in that infrared thermometer when infrared measurement of temperature, carry out noncontact temperature thermometric according to the thermal radiation of the outer wave band part of testee surface red.
3. standard rail according to claim 1, compromise rail off-line or online electromagnetic induction heating, spray pressurized air and water are at rail head tread, rail body and the flange of rail tempering heat treatment production line of quenching; It is characterized in that the electromagnetic induction heating coil inner chamber in the electromagnetic induction heater is similar with the rail shape; And can the rail head flange of rail evenly be heated up the position simultaneously up and down and between the rail through regulating induction heater, reduce flexural deformation.
4. standard rail according to claim 1, compromise rail off-line or online electromagnetic induction heating, spray pressurized air and water are at rail head tread, rail body and the flange of rail tempering heat treatment production line of quenching; It is characterized in that the warm eventually infrared thermometer of survey time fire heating is installed in the rear portion of tempering induction heater, blanking live rollers device is at discharge port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010290357XA CN101942553B (en) | 2010-09-25 | 2010-09-25 | Offline or online integral quenching/tempering thermal treatment production line for standard steel rail and profiled steel rail |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010290357XA CN101942553B (en) | 2010-09-25 | 2010-09-25 | Offline or online integral quenching/tempering thermal treatment production line for standard steel rail and profiled steel rail |
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| CN101942553A CN101942553A (en) | 2011-01-12 |
| CN101942553B true CN101942553B (en) | 2012-08-22 |
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| CN201010290357XA Active CN101942553B (en) | 2010-09-25 | 2010-09-25 | Offline or online integral quenching/tempering thermal treatment production line for standard steel rail and profiled steel rail |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102199700B (en) * | 2011-05-30 | 2012-09-19 | 常熟市异型钢管有限公司 | Heat treatment method for special drilling rod with non-through hole in end part and device |
| CN102433425B (en) * | 2011-12-12 | 2013-12-11 | 上海恒精机电设备有限公司 | Machine tool for continuously quenching slender steel pipe |
| CN103667609B (en) * | 2013-12-31 | 2015-05-27 | 鞍钢重型机械有限责任公司 | Through type induction heating quenching method for 921A flat-bulb steel |
| US9850553B2 (en) | 2014-07-22 | 2017-12-26 | Roll Forming Corporation | System and method for producing a hardened and tempered structural member |
| CN110791626B (en) * | 2019-10-18 | 2021-04-06 | 燕山大学 | Squirrel-cage induction heating device and process for marine flat-bulb steel |
| CN111041181A (en) * | 2019-11-19 | 2020-04-21 | 安徽金鼎机电装备制造有限公司 | Special-shaped metal piece heat treatment equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1127790A (en) * | 1995-01-25 | 1996-07-31 | 包头钢铁公司 | Steel rail in-line exhaust-heat strengthening process and its apparatus |
| CN201793654U (en) * | 2010-09-25 | 2011-04-13 | 朱兴发 | Off-line or on-line integral quenching and tempering heat treatment production line for standard steel rails and special-shaped steel rails |
-
2010
- 2010-09-25 CN CN201010290357XA patent/CN101942553B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1127790A (en) * | 1995-01-25 | 1996-07-31 | 包头钢铁公司 | Steel rail in-line exhaust-heat strengthening process and its apparatus |
| CN201793654U (en) * | 2010-09-25 | 2011-04-13 | 朱兴发 | Off-line or on-line integral quenching and tempering heat treatment production line for standard steel rails and special-shaped steel rails |
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| CN101942553A (en) | 2011-01-12 |
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Application publication date: 20110112 Assignee: Suzhou Zhenwu Electric Furnace Co., Ltd. Assignor: Zhu Xingfa Contract record no.: 2013320010030 Denomination of invention: Offline or online integral quenching/tempering thermal treatment production line for standard steel rail and profiled steel rail Granted publication date: 20120822 License type: Exclusive License Record date: 20130318 |
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