CN202239394U - Flying-shear blade cooling device of rolling mill - Google Patents
Flying-shear blade cooling device of rolling mill Download PDFInfo
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- CN202239394U CN202239394U CN2011203135657U CN201120313565U CN202239394U CN 202239394 U CN202239394 U CN 202239394U CN 2011203135657 U CN2011203135657 U CN 2011203135657U CN 201120313565 U CN201120313565 U CN 201120313565U CN 202239394 U CN202239394 U CN 202239394U
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Abstract
The utility model relates to a flying-shear blade cooling device of a rolling mill. A flying-hear blade is arranged on a cutter shaft of a crankshaft tail end through a bearing, a crankshaft is matched on a gearbox body through a shaft sleeve in a sliding manner, the cooling device comprises a control circuit, a heat-sensitive sensor, a water supply pipe, an electromagnetic valve and a nozzle. The heat-sensitive sensor is arranged in the way of conveying a wire material to a flying shear, the electromagnetic valve and the nozzle are sequentially connected with the water supply pipe, the electromagnetic valve is used for controlling water supply, the nozzle is used for spraying water to cool down the flying-shear blade, an output end of the heat-sensitive sensor is connected with a signal input end of the control circuit, and a signal output end of the control circuit is connected with a controlled end of the electromagnetic valve. According to the flying-shear blade cooling device disclosed by the utility model, on the premise of saving water and preventing water from splashing to leak into an oil seal of a bearing, the flying-shear blade is cooled down by a more effective water cooling manner, thus the temperatures of the flying-shear blade, the cutter shaft of the flying-shear blade and the crankshaft of the flying-shear blade can be largely reduced, the shearing quality of the flying shear is improved, the whole working service lives of the flying-shear blade and the flying shear are prolonged, and the fault rate of an integral device is reduced.
Description
Technical field
The utility model relates to the metallurgy rolling mill device, and more particularly, the utility model relates to a kind of metallurgy rolling mill device of rolled wire.
Background technology
High-speed rod-rolling mill as the metallurgical technology important device; In order to reach product requirement and to guarantee that the wire production process normally carries out continuously; Usually will be behind the 6# milling train that is arranged in roughing (V or H roll to), before the 7# milling train that rolls; The flying crank shears (abbreviating the 1# flying shear usually as) of configuration band blade is to implement crop, back-end crop and to prevent follow-up accident and critical function such as the accident of doing is cataclasm to the wire rod rolled piece; Its performance parameter of crank start stop mode 1# flying shear can reach usually: maximum shear section 5026mm
2(diameter 80mm), crop length 50～200mm, cataclasm length～800mm, shear rate 0.5～1.3m/s, shear temperature>=850 ℃.
For example the 170*170*1100 continuous casting steel billet is after heating furnace is heated to 1100～1150 ℃, and be rolled into diameter through the 1#--6# roughing mill is 79mm, the temperature round base about up to 1000 ℃, and milling train row 7# milling train continues rolling in behind 1# flying shear crop, getting into again; Behind intact this steel billet of 6# mill milling, the 1# flying shear promptly carries out back-end crop; As more the downstream frame of later process breaks down, and the 1# flying shear must the cataclasm function of emergency starting, shear continuously, and the frequency of shearing is about 1 time/second, and the cataclasm number of times of every steel billet can reach more than 60 times usually.
Because continuous shearing is cataclasm; Blade and cutting edge position temperature sharply rise; Heat also can be delivered to cutter shaft through blade; The cutter shaft temperature is also sharply raise and then can have influence on and the bent axle and the sealing between the gearbox of cutter shaft one heats up, quickens the damage of sealing, for this reason, extremely important to the fast cooling of 1# flying shear blade and cutter shaft.
The traditional 1# flying shear blade and the type of cooling of cutter shaft are the nature coolings, but long-term use finds that there are following shortcoming in the traditional 1# flying shear blade and the type of cooling of cutter shaft.
(1) when because later process wire rod or downstream frame break down, and the 1# flying shear starts the cataclasm function of continuous shearing immediately, the frequency of shearing can reach 1 time/second or more than.In the cataclasm process of steel billet, the cataclasm number of times of every steel billet can reach more than 60 times.Because continuous shearing is cataclasm, the cutting edge position temperature of blade sharply rises and occurs dark redly, and temperature is up to more than 700 ℃; And the blade of flying shear leans on the nature cooling, is difficult to effectively reduce the temperature of blade at short notice, causes the knife-blade temperature high; It is softening that blade cutting edge position is taken place, and groove appears in wearing and tearing, the blade shearing position of having aggravated blade cutting edge position, makes gap increasing between two blades; Cause blades fail, both shortened the service life of blade, and; Influence the quality of rolled piece crop end, the crop of rolled piece is sheared the later process that makes easily again of poor quality towards steel, causes mistake to produce.As a result, tradition is cooled off the bottom knife life-span naturally and is had only three days usually, has also influenced to a certain extent continuously and has produced with normal.
(2) when when the 1# flying shear is sheared rolled piece continuously, the high temperature of blade is delivered to cutter shaft simultaneously; The material of the sliding bearing copper sheathing of the bent axle of cutter shaft one is generally aluminium bronze, and the highest operating temperature is 280 ℃, and its lubricating oil is No. 1 compositing lithio ester.When the 1# flying shear was sheared continuously, the temperature of cutter shaft crank portion caused the lubricating grease in the sliding bearing copper sheathing overflowed by the temperatures involved seepage up to more than 300 ℃; Cause copper bush lubrication bad, quick abrasion, the bearing clearance is progressively strengthened; Impel the 1# flying shear to lose effect, cause accidents such as billet shears is curved and continuous; And be to guarantee 1# flying shear and follow-up operate as normal and product quality, have to shut down the copper sheathing of changing the cutter shaft sliding bearing.
Therefore there is following serial shortcoming in the natural type of cooling of 1# flying shear tradition: what not only influence was produced carries out smoothly, causes and produces the mistake product, influences the stocking lumber recovery, and because of often changing the copper sheathing of blade and cutter shaft sliding bearing, increased equipment operating cost.
Summary of the invention
Above-mentioned shortcoming to prior art; The purpose of the utility model is that a kind of milling train flying shear blade cooling device will be provided; It has following advantage: spatter under the prerequisite that infilters bearing enclosure at water saving, anti-sealing, adopt more efficiently water-cooling pattern cooling flying shear blade, therefore can significantly reduce the temperature of flying shear blade and cutter shaft thereof, bent axle; Improve the shearing quality of flying shear, prolong the fault rate of the whole working life of blade and flying shear, reduction integral device.
For this reason; The technical solution of the utility model is a kind of milling train flying shear blade cooling device; Said flying shear blade is installed on the terminal cutter shaft of bent axle through bearing; And bent axle is slidingly fitted on the gearbox body through axle sleeve; And said cooling device comprises control circuit, is arranged on wire rod and transports to the pipeline of heat-sensitive sensor in the flying shear way, water supply, be connected the magnetic valve that control is supplied water on the pipeline, the nozzle of water spray cooling flying shear blade in regular turn, and the output of this heat-sensitive sensor is connecting the signal input part of control circuit, and the signal output part of control circuit connects the controlled end of magnetic valve.
The cooling device of the utility model is transported in the flying shear way at wire rod heat-sensitive sensor is set; Thereby make that very the sensor of simple, general-purpose can provide accurately, wire rod status signal timely; And be convenient to vertically form sensor sequence along wire rod; Improve the information content of monitor signal, be convenient to control circuit and optimize the quality of signal processing, expand its signal ability of processing; Adopting the control circuit that connects with heat-sensitive sensor is that the water spray cooling down operation that flying shear blade carries out the different frequencys provides accurately, timely, rational control signal, and simple and practical, to the automatic operation of the utility model device powerful support is provided.
The device of the utility model adopts the state of making a return journey of high temperature wire rod in the heat-sensitive sensor monitoring operation of rolling; If monitoring is found not have the high temperature wire rod or is come or go; Then control flying shear and blade quits work; Can save the energy, reduce machine loss, can not waste valuable water source, the non-reason water yield more than needed and spatter to infilter and pollute in bearing axle sleeve and the oil sealing or the trouble of other water.In case heat-sensitive sensor monitors the high temperature wire rod or comes or go, and sends signal immediately; Signal is transferred to control circuit, and control circuit is at first according to operating mode before and after the milling train, and whether decision need start emergent cataclasm action; If desired, then start high frequency emergent cataclasm action repeatedly immediately, start the water spray cooling simultaneously; But do not abuse cooling water, but make that the water spray cooling is just right, in case flying shear interrupts emergent cataclasm action; Water spray cooling just stops after suitably postponing, and spatters and infilters the bearing axle sleeve and cause oil sealing to pollute or the trouble of other water thereby guarantee not waste valuable water source, the unlikely water yield more than needed.And in starting normal crop, back-end crop operation, the device of the utility model is on the monitoring basis, in response to the low cataclasm action of the frequency; Same feasible water spray cooling is just right; After the flying shear interrupt action, suitably shorten the subsequent delay water spraying time, guarantee that efficient cooling, water saving prevent.Obviously; The water-cooled effect of the utility model device can make the temperature of flying shear blade, cutter shaft and bent axle significantly reduce because of the hydro-thermal capacity significantly is higher than air; Thereby significantly prolong the fault rate of the whole working life of blade and flying shear, reduction integral device, also can significantly improve the shearing quality of flying shear.
For further improving the control reactivity worth of the utility model device, for flying shear blade provides flexible, simple and direct, safe, water spray cooling efficiently, the utility model device comprises following improvement:
Said magnetic valve comprises: the pneumatic water valve that has the two-position five-way formula solenoid directional control valve of said controlled end, is connected with the control tracheae of solenoid directional control valve through its cylinder, pneumatic triple piece and the compressed air source that is connected with the import tracheae of solenoid directional control valve, the water route of pneumatic water valve are connected on the pipeline between said nozzle and the water supply.
For further improving operation situation before and after the utility model device overall balance milling train, more reasonably controlling the ability of shear action, water spray cooling down operation, the utility model device comprises following improvement:
Said control circuit comprises that programmable logic controller (PLC) PLC and its signal input part also connect the monitoring sensor of milling train follow up device.
For vertically forming sensor sequence along wire rod, thereby improve information content, accuracy, the promptness of monitor signal, the signal processing quality of optimal control circuit, expand its signal ability of processing, the utility model device comprises following improvement:
The number of said heat-sensitive sensor is 2, is separately positioned on the position, front and back near the rod-rolling mill of said flying shear blade.
Said heat-sensitive sensor comprises the infrared electro detection head.
For the effect quality that improves the water spray cooling, reduce cooling water and spread unchecked the inner infiltration of flying shearing machine bent axle, gearbox bearing and stained, the utility model device comprises following improvement:
Said flying shear blade number is 2, is assemblied in respectively up and down on the bent axle, and correspondingly, said number of nozzle is 2, respectively towards the shearing station of last bottom knife.
Guarantee that enough flow cooling water are arranged and be convenient to regulate discharge, be convenient to pipeline maintenance and troubleshooting that the utility model cooling device comprises the improvement that contains latus rectum (nominal water flowing aperture) etc. as follows for better:
The discharge opening of bridge of said pneumatic water valve be lead to 2 nozzles the arm aperture 1.5-2.0 doubly.
Be connected with the stainless steel ball valve of latus rectum DN25 between water source and the said pneumatic water valve.
Overhaul and troubleshooting for the better gas circuit that guarantees, the utility model cooling device comprises following improvement:
Be connected with the stainless steel ball valve of latus rectum DN15 between said pneumatic triple piece and the compressed air source.
Said pneumatic triple piece comprises air cleaner, pressure-reducing valve, the oil sprayer that order is ganged up.
Can guarantee better that at the pneumatic pressure-release valve of installing on the gas circuit opening pressure of pneumatic water valve is stabilized between 3～4bar of setting, installed filters can better be separated the cleaning of the pneumatic water valve source of the gas of assurance that dewaters on the gas circuit, said.
The oil sprayer of installing on the gas circuit can guarantee better that the two-position five-way solenoid directional control valve is active in one's movements reliably, carries out accurate and flexible.
In a word, the utility model cooling device provides for the 1# flying shear blade and improves good cooling device.Overcome the blade abrasion that traditional 1# flying shear blade brings owing to air cooling effect difference, the rolled piece shearing quality is poor, blade and cutter shaft copper sheathing short drawback in service life.Fundamentally solved the technical problem of 1# flying shear blade cooling effect difference, prolonged the service life of blade and cutter shaft copper sheathing, improved the shearing quality of 1# flying shear rolled piece.
Facts have proved: because the 1# flying shear blade obtains efficient cooling in process of production, the negative effect of having avoided the high temperature rolled piece that the 1# flying shear is brought has effectively improved the life-span and the shearing quality of 1# flying shear blade greatly.Through tracking situation statistics, adopt that tradition cools off naturally the average rolling tonnage of 1# flying shear blade in 8 kilotons, and shearing quality is poor; And the average rolling tonnage of 1# flying shear blade of the utility model cooling is 80,000 tons, and shearing quality is good, reduces by 2 cataclasm operations in every month at least; The lubricated of flying shear cutter shaft also once extends to every first quarter moon once by original artificial greasing in per three days; Reduce the spare part cost greatly, practiced thrift and shut down the time of changing blade, improved the shearing quality of rolled piece; To the stable of production strong assurance is provided smoothly, the raising of production efficiency has been performed meritorious deeds never to be obliterated.
Below in conjunction with accompanying drawing and specific embodiment the utility model is described further.
Description of drawings
Fig. 1 is the integrally-built sketch map of the utility model cooling device embodiment.
The specific embodiment
Like Fig. 1, be depicted as the overall structure sketch map of the utility model milling train flying shear blade cooling device embodiment.But said flying shear 30 band swing connecting bar 35; Its blade 31 is installed on the cutter shaft 33 of bent axle 32 ends through bearing; And bent axle 32 is slidingly fitted on the gearbox body (do not give and illustrating) through axle sleeve 34; This cooling device embodiment comprises: on the control circuit 10 of band programmable logic controller (PLC) PLC (do not give and illustrating), be arranged on the pipeline 20 of heat-sensitive sensor S1/S2 that wire rod X transports to 2 band infrared electro detection heads in flying shear 30 way, water supply, be connected on control is supplied water on the pipeline 20 magnetic valve, the water spray cooling flying shear 30 in regular turn/bottom knife 31/and following nozzle 21; The signal output part of control circuit 10 connects the controlled end 41 of magnetic valve; It 10 also has signal input part to connect the monitoring sensor (do not give and illustrating) of milling train follow up device (do not give and illustrating), 2 heat-sensitive sensor S1/S2 be separately positioned on the approaching wire rod 6V milling train of said flying shear 30 blades 31 before and after position, S1/S2 output be connected the signal input part of control circuit 10.
Said magnetic valve comprises: the pneumatic water valve 50 that has the two-position five-way formula solenoid directional control valve 40 of said controlled end 41, is connected with the control tracheae of solenoid directional control valve 40 through its cylinder 51, pneumatic triple piece 60 and the compressed air source that is connected with the import tracheae of solenoid directional control valve 40, the water route of pneumatic water valve 50 are connected on the pipeline 20 between said nozzle 21 and the water supply.Pneumatic triple piece 60 comprises air cleaner 61, pressure-reducing valve 62, the oil sprayer 63 of ganging up with the compressed air source sequence.
Claims (10)
1. milling train flying shear blade cooling device; Said flying shear blade is installed on the terminal cutter shaft of bent axle through bearing; And bent axle is slidingly fitted on the gearbox body through axle sleeve; It is characterized in that: said cooling device comprises control circuit, be arranged on wire rod transports to the pipeline of heat-sensitive sensor in the flying shear way, water supply, is connected the magnetic valve that control is supplied water on the pipeline, the nozzle of water spray cooling flying shear blade in regular turn; The output of this heat-sensitive sensor is connecting the signal input part of control circuit, and the signal output part of control circuit connects the controlled end of magnetic valve.
2. milling train flying shear blade cooling device according to claim 1; It is characterized in that: said magnetic valve comprises: the pneumatic water valve that has the two-position five-way formula solenoid directional control valve of said controlled end, is connected with the control tracheae of solenoid directional control valve through its cylinder, pneumatic triple piece and the compressed air source that is connected with the import tracheae of solenoid directional control valve, the water route of pneumatic water valve are connected on the pipeline between said nozzle and the water supply.
3. milling train flying shear blade cooling device according to claim 1, it is characterized in that: said control circuit comprises that programmable logic controller (PLC) PLC and its signal input part also connect the monitoring sensor of milling train follow up device.
4. like the said milling train flying shear blade of claim 3 cooling device, it is characterized in that: the number of said heat-sensitive sensor is 2, is separately positioned on the position, front and back near the rod-rolling mill of said flying shear blade.
5. milling train flying shear blade cooling device according to claim 1, it is characterized in that: said heat-sensitive sensor comprises the infrared electro detection head.
6. milling train flying shear blade cooling device according to claim 1, it is characterized in that: said flying shear blade number is 2, is assemblied in respectively up and down on the bent axle, correspondingly, said number of nozzle is 2, respectively towards the shearing station of last bottom knife.
7. like the said milling train flying shear blade of claim 2 cooling device, it is characterized in that: the discharge opening of bridge of said pneumatic water valve be lead to 2 nozzles the arm aperture 1.5-2.0 doubly.
8. like the said milling train flying shear blade of claim 2 cooling device, it is characterized in that: the stainless steel ball valve that is connected with latus rectum DN25 between water source and the said pneumatic water valve.
9. like the said milling train flying shear blade of claim 2 cooling device, it is characterized in that: the stainless steel ball valve that is connected with latus rectum DN15 between said pneumatic triple piece and the compressed air source.
10. milling train flying shear blade cooling device according to claim 1, it is characterized in that: said pneumatic triple piece comprises air cleaner, pressure-reducing valve, the oil sprayer that order is ganged up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203135657U CN202239394U (en) | 2011-08-25 | 2011-08-25 | Flying-shear blade cooling device of rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203135657U CN202239394U (en) | 2011-08-25 | 2011-08-25 | Flying-shear blade cooling device of rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202239394U true CN202239394U (en) | 2012-05-30 |
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ID=46100696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203135657U Expired - Fee Related CN202239394U (en) | 2011-08-25 | 2011-08-25 | Flying-shear blade cooling device of rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202239394U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939409A (en) * | 2014-04-16 | 2014-07-23 | 江苏通用科技股份有限公司 | Forming machine right steel ring pre-support pneumatic driving device |
| CN104139218A (en) * | 2014-07-31 | 2014-11-12 | 江苏联峰能源装备有限公司 | Steel billet hot saw cooling water system |
| CN110090999A (en) * | 2019-04-01 | 2019-08-06 | 宝钢特钢韶关有限公司 | Wire and rod continuous rolling production line flying shear cuts the control method and device of end blocking |
| US20220082472A1 (en) * | 2020-09-10 | 2022-03-17 | Aktiebolaget Skf | Monitoring method for plate billet crank flying shear process |
-
2011
- 2011-08-25 CN CN2011203135657U patent/CN202239394U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939409A (en) * | 2014-04-16 | 2014-07-23 | 江苏通用科技股份有限公司 | Forming machine right steel ring pre-support pneumatic driving device |
| CN104139218A (en) * | 2014-07-31 | 2014-11-12 | 江苏联峰能源装备有限公司 | Steel billet hot saw cooling water system |
| CN110090999A (en) * | 2019-04-01 | 2019-08-06 | 宝钢特钢韶关有限公司 | Wire and rod continuous rolling production line flying shear cuts the control method and device of end blocking |
| US20220082472A1 (en) * | 2020-09-10 | 2022-03-17 | Aktiebolaget Skf | Monitoring method for plate billet crank flying shear process |
| US11579042B2 (en) * | 2020-09-10 | 2023-02-14 | Aktiebolaget Skf | Monitoring method for plate billet crank flying shear process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20190825 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |