CN105202927B - Prevent the method for controlling security of bar plate heating stove steel loading motor internal contracting brake burst failure - Google Patents
Prevent the method for controlling security of bar plate heating stove steel loading motor internal contracting brake burst failure Download PDFInfo
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- CN105202927B CN105202927B CN201410263999.9A CN201410263999A CN105202927B CN 105202927 B CN105202927 B CN 105202927B CN 201410263999 A CN201410263999 A CN 201410263999A CN 105202927 B CN105202927 B CN 105202927B
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- loading machine
- fire door
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Abstract
The present invention is a kind of method of controlling security for preventing the burst of bar plate heating stove steel loading motor internal contracting brake from failing, including：Make steel loading machine without advance enabled instruction and speed preset is zero；Make steel loading machine translation arms art skating displacement arbitration functions effective；Slided with the presence or absence of abnormal apart from S1 by encoder detection steel loading machine translation arms；In this way, then judge whether the coasting distance S1 of steel loading machine translation arms meets S0≤S1≤(L3 S2), wherein, steel loading machine is translated and band-type brake running deviation value S0, L3 is the distance of fire door and steel loading machine translation arms front end, and S2 is steel loading machine translation arms coasting distance while oven door opening；In this way, then：In man-machine interface (HMI) alarm steel loading machine translation band-type brake failure, and send charging fire door automatically open up instruction；Charging fire door is automatically opened up by hoisting equipment.The present invention can effectively prevent heating furnace from filling the bulk mechanical structural failures such as the reduction box of discharging door and steel loading machine, improve the efficiency and security of production.
Description
Technical field
The present invention relates to a kind of automation control method, a kind of bar plate heating stove automation control method is in particulard relate to.
Background technology
Heating furnace steel loading machine is key equipment essential on current rolling mill furnace both at home and abroad.Heating furnace steel loading machine
Site layout project is as shown in Figure 1.Wherein, what steel loading machine 2 was located at heating furnace 1 enters furnace side (diagram left side), for by furnace charging table 4
Slab (as shown, slab 1, slab 2 ... slab n) hold up and be smoothly placed in heating furnace 1.Extractor 3 is arranged on step
Enter the stove i.e. tapping side of heating furnace 1 (diagram right side), for holding out and being smoothly placed on out the slab heated in heating furnace 1
Device on furnace roller road 5.
Heating furnace steel loading machine includes transmission mechanism, herringbone gear and steel loading machine translation arm member, concrete structure such as Fig. 2 institutes
Show, wherein, drive mechanism includes translation mechanism and elevating mechanism；Translation mechanism includes that ac variable-frequency electric motor 2d, brake 6 are
The tooth bar of the drivings such as contracting brake mechanism (Fig. 3), gear cabinet (cylinder gear speed reducer) 2c, gear shaft (is located at steel loading machine translation arms
2a bottoms) and transmission base (sign)；The drive path of translation mechanism is：Steel loading machine translation arms 2a forward-backwards are acted
Steel loading is driven using ac variable-frequency electric motor 2d- brakes 6 (Fig. 3)-gear cabinet (cylinder gear speed reducer) 2c- gear shafts etc.
The tooth bar 2f of machine translation arms 2a bottoms.Transmission base is weldment.Elevating mechanism includes ac variable-frequency electric motor 2d ', brake
6 ', reduction box (sign) crank connecting link 2g, steel loading machine lifting pressure pin 7；The drive path of elevating mechanism is：Motor 2d '-system
Dynamic device 6 '-reduction box-crank connecting link 2g rises or falls steel loading machine translation arms 2a.Herringbone gear includes casing, the axle of segmentation
Hold and bearing block, gear shaft, axle sleeve, pressure roller and the roller (not shown) installed in gear shaft two ends.Wherein, casing is weldering
Fitting, a pair of pressure rollers are arranged on casing top, are used to limit steel loading machine translation arms and freely topple in vertical plane, and ensure dress
The correct engagement of the rack and pinion axle of steel machine translation arms bottom, the straight of steel loading machine translation arms is changed into by the rotary motion of motor
Line is moved.Steel loading machine translation arms 2a is smithwelding steel construction, and tooth bar is forging, is fixed on steel loading machine translation arms bottom.Steel loading machine is put down
The head of displacement arm is provided with cushion block 2b ' and the 2b that cuts somebody's hair.The specific arrangement of steel loading machine is as shown in Figure 3, Figure 4.
But in actual production, steel loading machine 2 is according to normal logic control (incremental encoder 2e carries out steel loading stroke detection)
Chain condition, the advance run action of steel loading machine 2 is half-open with charging fire door 1c or fully open position has certain interlocked relationship, and its is main
Purpose is that slab or steel loading machine translation arms 2a knock fire door in order to prevent during steel loading or during operational error；And heating furnace steel loading
The translation of machine 2 and the brake 6,6 ' of elevating mechanism are to employ the electronic contracting brake mechanism of external, and it includes band-type brake wheel hub
6a1、6a’1With band-type brake piece 6a2、6a’2, as shown in Figure 5.In terms of electrical control, when the control condition of brake 6 meets, band-type brake is obtained
Started to open at after electricity, while steel loading machine 2 drives steel loading machine translation arms 2a to act according to certain speed is given, and according to target location
Positioning.Steel loading machine 2 is out of service after reaching target location, and closing motion is implemented after band-type brake dead electricity.However, working as heating furnace steel loading machine
2 translation external brake 6 is happened suddenly to fail after dead electricity closing and discharges, and material is taken on because steel loading machine translation arms 2a forward parts are close to
The weight of Lu Men sides is big and support foot wheel abrasion causes arm in the presence of certain oblique angle that dips down, as shown in fig. 7, when steel loading machine is the next
Can cause steel loading machine translation arms voluntarily to being slided in stove, and speed is quickly, and it is lower certain in off position now to fill discharging door
Can be knocked, cause fire door and steel loading machine speed reduction gear box etc. to damage；If fire door is damaged, maintenance takes time and effort when changing.
When steel loading machine translation band-type brake adjustment or maintenance, it is typically with propping up band-type brake wheel hub by oven door opening or with supporter.Due to
Fire door is opened can cause energy waste for a long time, and steel loading machine origin position is lost and also influences whether that other heating furnaces are normally given birth to
Produce.And in steel loading machine translation band-type brake repairing Renewal process, not I'm glad to meet you generation danger Zhao accidents, maintainer is accidentally by band-type brake wheel hub
Supporter is touched off, and steel loading machine translation arms quick sliding rushes at fire door, inevitable if preventing not in time that shock accident occurs.
The content of the invention
It is an object of the invention to provide a kind of security control side for preventing the burst of bar plate heating stove steel loading motor internal contracting brake from failing
Method, can effectively prevent heating furnace from filling the bulk mechanical structural failures such as the reduction box of discharging door and steel loading machine, improve production
Efficiency and security.
The method of controlling security for preventing the burst of bar plate heating stove steel loading motor internal contracting brake from failing of the invention, including：
Make steel loading machine without advance enabled instruction and speed preset is zero；
Make steel loading machine translation arms art skating displacement arbitration functions effective；
Slided with the presence or absence of abnormal apart from S1 by encoder detection steel loading machine translation arms；In this way, then
Judge whether the coasting distance S1 of steel loading machine translation arms meets S0≤S1≤(L3-S2), wherein, steel loading machine translation and
Band-type brake running deviation value S0, L3 are the distances of fire door and steel loading machine translation arms front end, and S2 is steel loading machine translation while oven door opening
Arm coasting distance；In this way, then：
In man-machine interface (HMI) alarm steel loading machine translation band-type brake failure, and send charging fire door automatically open up instruction；
Charging fire door is automatically opened up by hoisting equipment.
Heating furnace charging fire door be using with inside brake reducing motor drive hoisting equipment realize fire door lifting and under
Drop.
Hoisting equipment includes chain, elevator sprocket wheel, and fire door is directly hung on elevator sprocket wheel by chain, with turning for sprocket wheel
The dynamic lifting and decline for realizing fire door.
The direction symmetrical with fire door is hung with counterweight, is used to balance the quality of fire door.
The coasting distance S1 of steel loading machine translation arms makes the oven door opening that fed while steel loading machine translation arms art skating
Stroke ensure band-type brake failure after steel loading machine translation arms art skating when do not bump against charging fire door.
Method of controlling security of the invention be by judge steel loading motor internal contracting brake happen suddenly cannot brake after steel loading machine translation arms
Art skating real-time displacement, optimization fire door, the action interlock logic relation of steel loading machine prevent the burst failure of steel loading motor internal contracting brake to release
The situation that fire door is clashed into after putting occurs, so as to avoid steel loading machine pressure pin art skating after the burst failure of steel loading motor internal contracting brake discharges
Fire door is knocked, causes the body such as fire door and steel loading machine reduction box to damage, safety protection function is served, due to steel loading can be avoided
Machine bumps against with fire door, effectively prevents heating furnace from filling the bulk mechanical structural failures such as the reduction box of discharging door and steel loading machine, carries
The efficiency and security of height production.The present invention is simple and easy to do, and reliability is high.
Brief description of the drawings
Fig. 1 is heating furnace steel loading machine site layout project schematic diagram
Fig. 2 be heating furnace steel loading machine, heating furnace include charging fire door and body of heater site layout project structure schematic top plan view
Fig. 3 is heating furnace steel loading machine drive mechanism side schematic view；
Fig. 4 is steel loading machine translation arms, charging fire door relative position schematic diagram；
Fig. 5 is the contracting brake mechanism site layout project schematic diagram of the translation of heating furnace steel loading machine and elevating mechanism；
Fig. 6 is the security control side for preventing the burst failure of bar plate heating stove steel loading motor internal contracting brake of one embodiment of the invention
The electrical control flow chart of method；
Fig. 7 is the inclination angle schematic diagram that steel loading machine translation arms are present.
Specific embodiment
It is that the above objects, features and advantages of the present invention can be become apparent, below in conjunction with accompanying drawing to tool of the invention
Body implementation method elaborates.Firstly the need of explanation, the present invention is not limited to following specific embodiments, this area
The spirit that technical staff should be embodied from following implementation methods understands the present invention, and each technical term can be based on of the invention
Spirit Essence makees broadest understanding.Identical reference represents identical part in the accompanying drawings.
The method of controlling security for preventing the burst of bar plate heating stove steel loading motor internal contracting brake from failing of the invention, its flow such as Fig. 6
It is shown, including：
Make steel loading machine 2 without advance enabled instruction and speed preset is zero；
Make steel loading machine translation arms 2a art skating displacement arbitration functions effective；
Slided with the presence or absence of abnormal apart from S1 by encoder 2e detections steel loading machine translation arms 2a, in this way, then
Judge whether the coasting distance S1 of steel loading machine translation arms 2a meets S0≤S1≤(L3-S2), in this way, then：
In man-machine interface (HMI) alarm steel loading machine translation band-type brake 6 fail, and send charging fire door 1c automatically open up instruction；
Automatically open up charging fire door 1c；
Wherein, steel loading machine translation and band-type brake running deviation value S0, L3 be fire door and steel loading machine translation arms front end distance, S2 be
Steel loading machine translation arms coasting distance while oven door opening.
Further illustrate above-described embodiment below by way of concrete application example, so as to become apparent from understanding the features of the present invention and
Advantage.
Slab portion heating furnace charging fire door 1c is to drive hoisting equipment reality using the reducing motor (sign) with inside brake
The lifting and decline of existing fire door 1c, its concrete structure are that fire door 1 is directly hung on 1 sprocket wheel M of elevator using 1 chain,
The lifting and decline of fire door 1c are realized with the rotation of sprocket wheel M.The direction symmetrical with fire door 1c is hung with counterweight 8, as shown in figure 4,
It is used to balance the quality of fire door 1c, makes its fire door stable action and reduce power consumption.
The lifting travel L2 of charging fire door is 2.5m, and rising or falling speed is 0.2m/s, is seen from Fig. 4 to find out, steel loading machine is put down
The fire door 1c that fed while displacement arm 2a art skatings will be opened to certain stroke, and steel loading machine is put down after just can ensure that the failure of band-type brake 6
Charging fire door 1c is not bumped against during displacement arm 2a art skatings.
The field position arrangement of steel loading machine translation arms 2a and charging fire door 1c according to slab heating furnace, as shown in figure 4, dress
The height L1 of steel machine translation arms 2a is 90mm, and the safety travel L2 that charging fire door 1c is opened is more than or equal to 1200mm.Again because of fire door
It is to be driven using constant speed motor, its rising or falling speed is 0.2m/s=200mm/s.Therefore feed fire door actuation time T=L/V=
1200mm/200mm/s=6 seconds, through on-site measurement steel loading machine translation arms 2a in the presence of certain oblique angle about θ=3 ° that dip down, such as
Shown in Fig. 7.Accelerated to glide (known inclination angle of inclined plane θ) along smooth bevel according to thing block, acceleration a=(mgs in θ-umgcos θ)/
M=gs in θ-ugcos θ, while u=0, i.e. a=gs in θ are slided in consideration under ideal conditions, so, in oven door opening
Steel loading machine translation arms 2a coasting distances are S2=1/2aT2=1/2X 9.8m/s X s in3 ° X (6s) simultaneously2=1.54m=
1540mm；Steel loading machine translation arms distance charging fire door L3=1700mm, in addition, in normal production, such steel loading machine translation and
The span of band-type brake running deviation value S0：5mm≤S0≤20mm.S0 cappings, so, steel loading machine translation arms 2a slides abnormal distance
Start oven door opening action before scope 20mm≤S1≤(the L3-S2)=1700mm-1540mm=160mm of S1, can ensure
Translation arms will not knock fire door after the failure of steel loading machine band-type brake.
The detection component of control technology of the present invention and the measurement of partial parameters：Steel loading machine 2 is driven by variable-frequency motor 6,6 '
It is dynamic；The real-time displacement that steel loading machine 2 is slided is realized by the incremental encoder 2e on variable-frequency motor output shaft, tool
There is control accuracy high, reliable and stable.
In sum, steel loading machine translation arms after the method for the present invention is by judging that the burst of steel loading motor internal contracting brake cannot be braked
Art skating real-time displacement, optimization fire door, the action interlock logic relation of steel loading machine can prevent steel loading motor internal contracting brake from happening suddenly and lose
Effect clashes into fire door situation after discharging occurs, so as to avoid steel loading machine pressure pin freedom after the burst failure of steel loading motor internal contracting brake discharges
Slide and knock fire door and cause the accident of device damage to occur, improve the efficiency and security of production.The present invention is simple and easy to do, reliable
Degree is high.
It should be understood that after above-mentioned instruction content of the invention has been read, those skilled in the art can make to the present invention
Various changes or modification, these equivalent form of values equally fall within the application appended claims limited range.
Claims (5)
1. it is a kind of prevent bar plate heating stove steel loading motor internal contracting brake happen suddenly failure method of controlling security, it is characterised in that including：
Make steel loading machine without advance enabled instruction and speed preset is zero；
Make steel loading machine translation arms art skating displacement arbitration functions effective；
Slided with the presence or absence of abnormal apart from S1 by encoder detection steel loading machine translation arms；In this way, then
Judge whether the coasting distance S1 of steel loading machine translation arms meets S0≤S1≤(L3-S2), wherein, steel loading machine is translated and band-type brake
Running deviation value S0, L3 are the distances of fire door and steel loading machine translation arms front end, and S2 is that steel loading machine translation arms are slided while oven door opening
Row distance；In this way, then：
In man-machine interface alarm steel loading machine translation band-type brake failure, and send charging fire door automatically open up instruction；
Charging fire door is automatically opened up by hoisting equipment.
2. it is according to claim 1 prevent bar plate heating stove steel loading motor internal contracting brake happen suddenly failure method of controlling security, its
It is characterised by, hoisting equipment is by using the reducing motor with inside brake to drive to realize the lifting and decline of fire door.
3. it is according to claim 1 and 2 prevent bar plate heating stove steel loading motor internal contracting brake happen suddenly failure method of controlling security,
Characterized in that, the coasting distance S1 of the steel loading machine translation arms is to make the fire door that fed while steel loading machine translation arms art skating
The stroke of opening, with ensure band-type brake fail after steel loading machine translation arms art skating when do not bump against charging fire door.
4. it is according to claim 1 and 2 prevent bar plate heating stove steel loading motor internal contracting brake happen suddenly failure method of controlling security,
Characterized in that, hoisting equipment includes chain, elevator sprocket wheel, fire door is directly hung on elevator sprocket wheel by chain, with sprocket wheel
Rotation realize the lifting and decline of fire door.
5. it is according to claim 4 prevent bar plate heating stove steel loading motor internal contracting brake happen suddenly failure method of controlling security, its
It is characterised by, the direction symmetrical with fire door is hung with counterweight, is used to balance the quality of fire door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410263999.9A CN105202927B (en) | 2014-06-13 | 2014-06-13 | Prevent the method for controlling security of bar plate heating stove steel loading motor internal contracting brake burst failure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410263999.9A CN105202927B (en) | 2014-06-13 | 2014-06-13 | Prevent the method for controlling security of bar plate heating stove steel loading motor internal contracting brake burst failure |
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| Publication Number | Publication Date |
|---|---|
| CN105202927A CN105202927A (en) | 2015-12-30 |
| CN105202927B true CN105202927B (en) | 2017-05-31 |
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| CN201410263999.9A Active CN105202927B (en) | 2014-06-13 | 2014-06-13 | Prevent the method for controlling security of bar plate heating stove steel loading motor internal contracting brake burst failure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112113433B (en) * | 2019-06-20 | 2022-06-24 | 宝山钢铁股份有限公司 | Control method for preventing variable frequency motor from burning loss |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB823939A (en) * | 1956-01-03 | 1959-11-18 | Johann Wilhelm Ludowici | Apparatus for transporting a stack of articles into and out of a processing chamber |
| CN201438082U (en) * | 2009-05-26 | 2010-04-14 | 山西太钢不锈钢股份有限公司 | Device for preventing steel loading machine from damaging door of heating furnace |
| CN102641977A (en) * | 2012-05-04 | 2012-08-22 | 北京亿玮坤节能科技有限公司 | Optimizing control energy saving system for steel feeding and discharging of heating furnace |
| CN103468924B (en) * | 2013-09-27 | 2015-11-25 | 北京佰能电气技术有限公司 | Process furnace tapping protector |
| CN103484651B (en) * | 2013-09-27 | 2016-04-20 | 北京佰能电气技术有限公司 | Process furnace fills steel locating device automatically |
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