CN106623676B - Cold straightener main transmission universal shaft protective device and method - Google Patents
Cold straightener main transmission universal shaft protective device and method Download PDFInfo
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- CN106623676B CN106623676B CN201510725350.9A CN201510725350A CN106623676B CN 106623676 B CN106623676 B CN 106623676B CN 201510725350 A CN201510725350 A CN 201510725350A CN 106623676 B CN106623676 B CN 106623676B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D55/00—Safety devices protecting the machine or the operator, specially adapted for apparatus or machines dealt with in this subclass
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Abstract
The present invention relates to cold straightener main transmission universal shaft protective device and methods, solve the problems, such as that straightener universal shaft is flimsy, and protective device runs detecting system, PLC controller, Main Drive Control System and alarm system composition by moment inspecting system；Moment inspecting system exports universal shaft torque signals；Run detecting system output output shaft operating state signal and universal shaft operating state signal；PLC controller receives torque detecting system with running the output signal of detecting system and to exporting real-time control signal after two signal progress real-time judge and processing；Main Drive Control System and the output terminal of PLC controller connect；Alarm system is alarmed when being and breaking down to PLC controller handling result judgement cold straightener main transmission universal shaft.The present invention is the technology for the straightener main transmission universal shaft progress automatic protection that high-torque aligning is carried out to slab, can make straightener that the phenomenon that universal shaft damages be reduced or avoided when carrying out high-torque aligning to slab.
Description
Technical field
The present invention relates to cold straightener universal shaft motion detections and the technology of control, refer in particular to a kind of cold leveling owner and pass
Dynamic universal shaft protective device and method.
Background technology
In steel production, cold straightener is used to carry out straightening operation to the steel plate of work in-process, so as to become steel plate
It is smooth, to meet manufacture needs.The main function of slab (5M) cold straightener is that the steel plate of large-size high-strength is aligned,
Therefore, straightening force and torque are all remarkably reinforced than general cold straightener, and Main drive power improves 130%, correspondingly, with rectifying
The intensity and hardness of the universal shaft (universal shaft 3 as shown in Figure 1) of straight roller connection will adapt to new requirement.If it exceeds this limit
Value, it will cause not expected consequences.The pernicious of the cardan shaft breaks of such cold straightener also occurred in production practices
Accident causes the shutdown of long period.For production India pipe line steel, the situation of this large torque can often occur, though
The output torque of some universal shafts can suitably so be reduced by model optimization, but situation about aligning energetically is still difficult to keep away
Exempt from, the high-strength steel aligning of batch brings the high torque of long period to act on, universal shaft is caused to generate fatigue damage, often also
Not up to fracture accident just has occurred in highest torque alarm bit, has seriously affected the normal production order, and also need one after the incident
Expensive repairing expense.
Invention content
The purpose of the present invention is to solve problems of the existing technology, provide a kind of cold straightener main transmission universal shaft
Protective device and a kind of cold straightener main transmission universal shaft guard method can make straightener carry out high-torque aligning to slab
In the case of, the phenomenon that universal shaft of straightener damages is reduced or avoided.
The purpose of the present invention is what is be achieved through the following technical solutions：
A kind of cold straightener main transmission universal shaft protective device by moment inspecting system, runs detecting system, PLC controls
Device processed, Main Drive Control System and alarm system composition；
The moment inspecting system is the system of output torque signal when detecting the operation of cold straightener main transmission universal shaft, defeated
Go out universal shaft torque signals, it includes in main transmission in the frequency converter control system of main motor；
The operation detecting system is the system for detecting cold straightener main transmission operating state signal, and output main transmission is transported
Row status signal, the main transmission operating state signal include output shaft operating state signal and universal shaft operating state signal,
The operation detecting system includes output shaft and limits detector, output shaft limit induction block, universal shaft limiting detector and universal
Axis limit induction block；The output shaft limit induction block and output shaft limiting detector matching use, and make output shaft limiting detection
Device exports output shaft operating state signal；The universal shaft limit induction block and universal shaft limiting detector matching use, and make ten thousand
To axis limiting detector output universal shaft operating state signal；
The PLC controller be receive torque detecting system with run detecting system output signal and to two signal into
The controller of real-time control signal is exported after row real-time judge and processing；
The Main Drive Control System configuration is the system for controlling cold straightener main transmission operation in electric operation room,
Its input terminal is connected to the output terminal of PLC controller, receives the real-time control signal of PLC controller；
The alarm system be to PLC controller handling result judgement cold straightener main transmission universal shaft break down when into
The equipment of row alarm, in electric operation room, the output terminal connection of input terminal and PLC controller, output terminal connection
To the cold strong operation display of Main Drive Control System.
The output shaft limit induction block and output shaft limiting detector matching use, and make output shaft limiting detector output
The concrete structure of output shaft operating state signal is：
The output shaft limiting detector is using inductance approach switch, mounted on the output shaft side of General Motors Gearbox
Transmission side, for detector towards main motor output shaft, which uses the PNP of model Siemens PXI400
Type inductance approach switch open in usual is the cylindrical structure of diameter 5mm；
The output shaft limit induction block is iron block, is welded on main motor output shaft, and is rotated in main motor output shaft
To the detector of output shaft limit induction block and output shaft limiting detector closest to when there are a distance of reaction, the sensing away from
From for 1.5CM, main motor output shaft often rotates a circle, and output shaft limiting detector is made to export one and represents main motor output shaft fortune
Capable pulse electrical signal.
The universal shaft limit induction block and universal shaft limiting detector matching use, and make universal shaft limiting detector output
The concrete structure of universal shaft operating state signal is：
The universal shaft limiting detector has the one of output shaft using inductance approach switch mounted on General Motors Gearbox
The roll side of side, for detector towards on the universal shaft being connect with main motor output shaft, universal shaft other end connection straightening roll should
Inductance approach switch uses the positive-negative-positive inductance approach switch open in usual of model Siemens PXI400, is diameter 5mm's
Cylindrical structure；
The universal shaft limit induction block is iron block, is welded on universal shaft, and rotates to universal shaft limiting in universal shaft
The detector of sensor block and universal shaft limiting detector closest to when there are a distance of reaction, the distance of reaction of the present embodiment to be
1.5CM, universal shaft often rotate a circle, and universal shaft limiting detector is made to export a pulse electrical signal for representing universal shaft operation.
The output terminal of the alarm system is also connect with one mounted on the indoor flashing red light of electric operation.
It is another object of the present invention to what is be achieved through the following technical solutions：
It is a kind of to carry out the protection of cold straightener main transmission universal shaft using above-mentioned cold straightener main transmission universal shaft protective device
Method, it is characterised in that comprise the steps of：
S1, output torque when being run using moment inspecting system detectio cold straightener main transmission universal shaft, is obtained universal
Axis torque signals；
S2 using the operating status for running detecting system detection cold straightener main transmission, obtains main transmission operating status letter
Number, the main transmission operating state signal includes output shaft operating state signal and universal shaft operating state signal, step tool
Body includes：
S21 limits the operating status of detector and output shaft limit induction block detection main motor output shaft using output shaft,
Obtain the output shaft operating state signal；
S22 is limited the operating status of detector and universal shaft limit induction block detection universal shaft using universal shaft, obtains institute
State universal shaft operating state signal；
Step S1 and S2 the universal shaft output torque signal measured and main transmission operating state signal are input to PLC by S3
Controller, carries out logic judgment and processing, the step specifically include：
S31, PLC controller carries out logic judgment and processing to the main transmission operating state signal of input, if it is determined that knot
Fruit main transmission operating status breaks down, and PLC controller sends out alarm signal to alarm system, makes the behaviour of cold strong operation display
Make to carry out malfunction coefficient on picture, while PLC controller sends out to Main Drive Control System and stops main transmission CRANK PULSES, main biography
It is dynamic out of service, the above process since step S1 again after fixing a breakdown；
S32, PLC controller carries out logic judgment and processing to the universal shaft torque signals of input, if it is judged that ten thousand
It is known as high-torque occur when being more than the torque upper limit value of setting to axle power square, the mair motor speed of PLC controller control at this time reduces,
Make its rotating speed slack-off, if also there is high-torque, represent to break down, PLC controller sends out alarm signal to alarm system, makes
Malfunction coefficient is carried out, while that triggers cold straightener equipment opens defencive function soon, makes on the operation screen of cold strong operation display
Straightening roll is lifted automatically, is detached from steel plate contact, is continued the step after fixing a breakdown.
S311, PLC controller carry out logic judgment and processing to the output shaft operating state signal of input：Main motor exports
Axis often rotates a circle, and the pulse signal that PLC controller will receive an output shaft rotation is representing main motor output shaft rotation just
Often, if providing that PLC controller judgement in rotation time of 5 times does not receive output shaft rotation in main motor output shaft
Pulse signal represents that main motor output shaft breaks down, and PLC controller sends out alarm signal to alarm system, by alarm system
To carrying out malfunction coefficient on the operation screen of the cold strong operation display of Main Drive Control System, while PLC controller is to main biography
Autocontrol system, which is sent out, stops main transmission CRANK PULSES, out of service by Main Drive Control System control main transmission, is examined after alarm
Main motor output shaft state is looked into, is resumed production after main motor output shaft is normal, again the above process since step S1；
S312, PLC controller carry out logic judgment and processing to the universal shaft operating state signal of input：Universal shaft often revolves
It circles, the pulse signal that PLC controller will receive a universal shaft rotation represents that universal shaft rotation is normal, if universal
PLC controller judgement does not receive the pulse signal of a universal shaft rotation in the time that axis convention rotation is 5 times, represents universal shaft
It breaks down, PLC controller sends out alarm signal to alarm system, the malfunction coefficient of operation screen is carried out by alarm system, together
When PLC controller to Main Drive Control System send out stop main transmission CRANK PULSES, main transmission is controlled by Main Drive Control System
Out of service, alarm checks universal Spindle Status, resumes production after universal shaft is normal, again the above process since step S1.
The step S32 is specifically included：
The upper limit value of universal shaft torque output is set in PLC controller, if it is judged that universal shaft torque is more than to set
It is known as high-torque occur during fixed torque upper limit value, PLC adjusts the reference value of main motor rotary speed, and this signal is sent and is led
Driving control system, control mair motor speed reduce, and make its rotating speed slack-off, if high-torque is always maintained at, more than 5S
That just triggers cold straightener equipment afterwards opens defencive function soon, and straightening roll is made to be lifted automatically, is detached from steel plate contact, and check live shape
State, the scene of elimination cause the failure of high-torque, continue this step, if scene is without exception, continues high-torque occur, represent the steel
Plate cannot be aligned or need model optimization, need to stop main transmission operation at this time, carry out respective handling.
The alarm system also sends out flashing red light flash signal when failure occurs.
Beneficial effects of the present invention：
The cold straightener main transmission universal shaft protective device and method of the present invention is a kind of to slab progress high-torque aligning
Straightener the automatic control technology protected of main transmission universal shaft, overcome in existing straightener universal shaft equipment protection
There are the defects of.The present invention can make straightener that straightener be reduced or avoided in the case where carrying out high-torque aligning to slab
The phenomenon that middle universal shaft damages ensure that the safe operation of universal shaft, ensure that it can be for a long time in strong motion, high load capacity
In the state of work normally, while in turn avoid the generation of straightener serious accident, ensure that entire aligning mechanical equipment can
The operation of normal table improves production efficiency and reduces production cost.In experimental stage off-axis event did not occurred for the present apparatus
Barrier, using effect are fine.
For the above-mentioned purpose, design feature and effect further illustrated the present invention, below with reference to attached drawing to the present invention into
Row is described in detail.
Description of the drawings
Fig. 1 is the structure diagram that detecting system is run in cold straightener main transmission universal shaft protective device of the present invention；
Fig. 2 is the structure diagram of cold straightener main transmission universal shaft protective device of the present invention.
Specific embodiment
The specific embodiment of the present invention is described in detail with reference to the attached drawing of embodiment.
Referring to Fig. 2, cold straightener main transmission universal shaft protective device of the invention, by moment inspecting system 101, operation inspection
Examining system 102, PLC controller 103, Main Drive Control System 104 and alarm system 105 form.
Output torque signal is when the moment inspecting system 101 is detection cold straightener main transmission universal shaft operation
System exports universal shaft torque signals, since the operation of main motor in main transmission of the present invention is to carry out frequency control by frequency converter,
And having current loop control and speed ring control in frequency converter, the detection of torque is by Main motor current size convert
It arrives, therefore, moment inspecting system 101 of the present invention is included in main transmission in the frequency converter control system of main motor.
The operation detecting system 102 is the system for detecting cold straightener main transmission operating state signal, exports main biography
Dynamic operating state signal, the main transmission operating state signal includes output shaft operating state signal and universal shaft operating status is believed
Number, referring to Fig. 1, operation detecting system 102 includes output shaft and limits detector 4, output shaft limit induction block 41, universal shaft limiting
Detector 5 and universal shaft limit induction block 51；
The output shaft limiting detector 4 is using inductance approach switch, mounted on the output shaft one of General Motors Gearbox 1
The transmission side of side, for detector towards main motor output shaft 2, which is for non-contact detecting metal object
A kind of detector, the present embodiment uses the inductance approach switch of model Siemens PXI400, for cylindrical knot
Structure, a diameter of 5mm are such to be divided into positive-negative-positive (open in usual, non-inductive object is not attracted) and NPN type (normally closed type, nothing close to switch
Sense object is attracted), the present embodiment, close to switch, there is 1 normally opened contact, operating voltage using positive-negative-positive 3 line system open in usual
It is 10~30VDC, operating current reaches 200mA.
The output shaft limit induction block 41 is iron block, is welded on main motor output shaft 2, and in main motor output shaft 2
Rotate to the detector of output shaft limit induction block 41 and output shaft limiting detector 4 closest to when there are a distance of reaction,
The distance of reaction of the present embodiment is 1.5CM；Output shaft limit induction block 41 and the output shaft limiting matching of detector 4 use, and make defeated
Shaft limiting detector 4 exports output shaft operating state signal：When main motor output shaft 2 rotates a circle, output shaft limit induction
41 sensor block of block can be such that output shaft limiting detector 4 senses once, one pulse signal of the output shaft limiting output of detector 4 (that is,
When output shaft limit induction block 41 and output shaft limit detector 4 in 1.5CM, close switch open in usual is attracted, output shaft limit
The output of bit detector 4 becomes 1 from 0, and when the two is more than 1.5CM, then open in usual to be disconnected close to switch, output shaft limits detector
4 output becomes 0 from 1, this pickup time is very short, and therefore, main motor output shaft 2 often rotates a circle, and makes output shaft limiting detection
Device 4 exports one and represents the pulse electrical signal that main motor output shaft 2 is run), then it is input in PLC system by ET200 stations.
The universal shaft limiting detector 5 is using the inductance approach switch identical with output shaft limiting detector 4, installation
There is the roll side of the side of output shaft in General Motors Gearbox 1, detector is towards the universal shaft being connect with main motor output shaft 2
On 3, described 3 one end of universal shaft connects main motor output shaft 2, other end connection straightening roll；
The use of universal shaft limit induction block 51 and 41 same iron block of output shaft limit induction block, are welded on universal shaft
On 3, and universal shaft 3 rotate to universal shaft limit induction block 51 with to axis limiting detector 5 detector closest to when exist
One distance of reaction, the distance of reaction of the present embodiment is 1.5CM；It is examined with above-mentioned output shaft limit induction block 41 and output shaft limiting
The matching of device 4 is surveyed using equally, universal shaft limit induction block 51 and universal shaft limiting detector 5 are also that matching uses, and make universal shaft
It limits detector 5 and exports universal shaft operating state signal：When universal shaft 3 often rotates a circle, export universal shaft limiting detector 5
One pulse electrical signal for representing that universal shaft 3 is run.
The PLC controller 103 is to receive the output signal of torque detecting system 101 and operation detecting system 102 and right
Two signal carries out the controller of output real-time control signal after real-time judge and processing.
The Main Drive Control System 104 is configured in electric operation room, be control cold straightener main transmission operation be
System, in of the invention, the input terminal of Main Drive Control System 104 is connected to the output terminal of PLC controller 103, receives PLC controller
103 real-time control signal.
The alarm system 105 is that event occurs to 103 handling result of PLC controller judgement cold straightener main transmission universal shaft
The equipment alarmed during barrier, in electric operation room, input terminal is connect with the output terminal of PLC controller 103, defeated
Outlet be connected to Main Drive Control System 104 cold strong operation display (it is not shown, show the picture of cold strong mode of operation,
Operating personnel need to often operate this picture, therefore can find the malfunction coefficient of cold straightener main transmission universal shaft in time), while its
Output terminal is also connect with one mounted on the indoor flashing red light of electric operation, and operation can be further reminded when breaking down
Personnel pay attention to.
Cold straightener main transmission universal shaft guard method is carried out using above-mentioned cold straightener main transmission universal shaft protective device
It comprises the steps of：
S1, output torque when being run using moment inspecting system detectio cold straightener main transmission universal shaft, is obtained universal
Axis torque signals；
S2 using the operating status for running detecting system detection cold straightener main transmission, obtains main transmission operating status letter
Number, the main transmission operating state signal includes output shaft operating state signal and universal shaft operating state signal, step tool
Body includes：
S21 limits the operating status of detector and output shaft limit induction block detection main motor output shaft using output shaft,
Obtain the output shaft operating state signal；
S22 is limited the operating status of detector and universal shaft limit induction block detection universal shaft using universal shaft, obtains institute
State universal shaft operating state signal；
Step S1 and S2 the universal shaft output torque signal measured and main transmission operating state signal are input to PLC by S3
Controller, carries out logic judgment and processing, the step specifically include：
S31, PLC controller carries out logic judgment and processing to the main transmission operating state signal of input, if it is determined that knot
Fruit main transmission operating status breaks down, and PLC controller sends out alarm signal to alarm system, makes the behaviour of cold strong operation display
Make to carry out malfunction coefficient on picture, while PLC controller sends out to Main Drive Control System and stops main transmission CRANK PULSES, main biography
It is dynamic out of service, the above process since step S1 again after fixing a breakdown；
S311, PLC controller carry out logic judgment and processing to the output shaft operating state signal of input：Main motor exports
Axis often rotates a circle, and the pulse signal that PLC controller will receive an output shaft rotation is representing main motor output shaft rotation just
Often, if providing that PLC controller judgement in rotation time of 5 times does not receive output shaft rotation in main motor output shaft
Pulse signal represents that main motor output shaft does not work normally, breaks down that dangerous, PLC controller is sent out to alarm system
Go out alarm signal, the malfunction coefficient of operation screen is carried out by alarm system and flashing red light flickers alarm signal, while PLC is controlled
Device processed is sent out to Main Drive Control System stops main transmission CRANK PULSES, stops fortune by Main Drive Control System control main transmission
Row, needed after alarm manual site check main motor output shaft state, resume production after main motor output shaft is normal, again from
Step S1 starts the above process；
S312, PLC controller carry out logic judgment and processing to the universal shaft operating state signal of input：Universal shaft often revolves
It circles, the pulse signal that PLC controller will receive a universal shaft rotation represents that universal shaft rotation is normal, if universal
PLC controller judgement does not receive the pulse signal of a universal shaft rotation in the time that axis convention rotation is 5 times, represents universal shaft
It does not work normally, breaks down, dangerous, PLC controller sends out alarm signal to alarm system, is carried out by alarm system
Malfunction coefficient and flashing red light the flicker alarm signal of operation screen, while PLC controller is sent out to Main Drive Control System
Stop main transmission CRANK PULSES, it is out of service by Main Drive Control System control main transmission, manual site is needed to check after alarm
Universal Spindle Status resumes production after universal shaft is normal, again the above process since step S1；
S32, PLC controller carries out logic judgment and processing to the universal shaft torque signals of input, if it is judged that ten thousand
It is known as high-torque occur when being more than the torque upper limit value of setting to axle power square, the mair motor speed of PLC controller control at this time reduces,
Make its rotating speed slack-off, if also there is high-torque, represent to break down, PLC controller sends out alarm signal to alarm system, makes
Malfunction coefficient is carried out, while that triggers cold straightener equipment opens defencive function soon, makes on the operation screen of cold strong operation display
Straightening roll is lifted automatically, is detached from steel plate contact, is continued the step after fixing a breakdown, which refers specifically to：
PLC controller carries out logic judgment and processing to the universal shaft torque signals of input, and ten thousand are set in PLC controller
The upper limit value exported to axle power square, reaching this upper limit value (high-torque occur) does not allow then to increase the output of universal shaft torque again,
Need to use instead reduces universal axle rotary speed (realizes, if there is high-torque, PLC adjustment main motor rotations to make up in PLC program
The reference value of rotary speed, and this this signal is sent into Main Drive Control System, control mair motor speed reduces, and becomes its rotating speed
Slowly, achieve the purpose that universal axle rotary speed declines), i.e.,：Even if load needs to continue to increase universal shaft torque, pass through closed loop control
System makes it not be further added by (this occurs, and PLC enters constant moment of force control model, and torque is made not to be further added by), if energetically
If square is always maintained at, (work(is realized in the defencive function of opening soon for just triggering cold straightener equipment afterwards more than certain time (5S)
The equipment of energy is the prior art, is a set of equipment developed for cold straightener equipment protection, makes aligning roller gap quick
Lifting is detached from the contact with steel plate, has the function that quick release power), straightening roll is lifted automatically, is detached from steel plate contact, so as to
The phenomenon that universal shaft being caused to damage due to torque is excessive is avoided, greatly reduces the failure rate of straightener, it is cold starting
Leveller equipment open defencive function soon after, operating personnel check presence states, and the scene of elimination causes the failure of high-torque, continue
This step, if scene is without exception, then align this steel plate and so big torque occur, illustrate that the steel plate cannot be aligned or be needed
Model optimization is wanted, needs to stop main transmission operation at this time, carries out respective handling.
The present invention implementation functionally compensate for existing straightener universal shaft protective device there are the defects of, ensure that it
Can normal operation of the long-term work under strong motion, higher load condition, while in turn avoid the generation of straightener serious accident,
To ensure the operation of production normal table.
In conclusion the cold straightener universal shaft safety guard of the present invention, can rectify steel plate in cold straightener
When straight, whether the operation for detecting universal shaft in real time there is exception, when straightening torque reaches certain value, defencive function input, from
And avoid makes straightener align the phenomenon that universal shaft damages due to larger torque, greatly reduces the failure of cold straightener
Rate.
Those of ordinary skill in the art it should be appreciated that more than embodiment be intended merely to illustrate the present invention's
Purpose, and limitation of the invention is not used as, as long as in the essential scope of the present invention, the change to embodiment described above
Change, modification will be all fallen in the scope of the claims of the present invention.
Claims (8)
1. a kind of cold straightener main transmission universal shaft protective device, it is characterised in that：It runs detection system by moment inspecting system
System, PLC controller, Main Drive Control System and alarm system composition；
The moment inspecting system is the system of output torque signal when detecting the operation of cold straightener main transmission universal shaft, exports ten thousand
To axis torque signals, it includes in main transmission in the frequency converter control system of main motor；
The operation detecting system is the system for detecting cold straightener main transmission operating state signal, and output main transmission runs shape
State signal, the main transmission operating state signal includes output shaft operating state signal and universal shaft operating state signal, described
It runs detecting system and includes output shaft limiting detector, output shaft limit induction block, universal shaft limiting detector and universal shaft limit
Position sensor block；The output shaft limit induction block and output shaft limiting detector matching use, and make output shaft limiting detector defeated
Go out output shaft operating state signal；The universal shaft limit induction block and universal shaft limiting detector matching use, and make universal shaft
Limit detector output universal shaft operating state signal；
The PLC controller is to receive torque detecting system with running the output signal of detecting system and two signal being carried out real
When judge and processing after export real-time control signal controller；
The Main Drive Control System configuration is the system for controlling cold straightener main transmission operation in electric operation room, defeated
Enter the output terminal that end is connected to PLC controller, receive the real-time control signal of PLC controller；
The alarm system is reported when being and breaking down to PLC controller handling result judgement cold straightener main transmission universal shaft
Alert equipment, in electric operation room, the output terminal connection of input terminal and PLC controller, output terminal is connected to master
The cold strong operation display of driving control system.
2. cold straightener main transmission universal shaft protective device as described in claim 1, it is characterised in that：
The output shaft limit induction block and output shaft limiting detector matching use, and make output shaft limiting detector output output
The concrete structure of axis operating state signal is：
The output shaft limiting detector is using inductance approach switch, the biography mounted on the output shaft side of General Motors Gearbox
Dynamic side, for detector towards main motor output shaft, which uses the positive-negative-positive of model Siemens PXI400 normal
Open type inductance approach switch is the cylindrical structure of diameter 5mm；
The output shaft limit induction block is iron block, is welded on main motor output shaft, and is rotated in main motor output shaft defeated
The detector of shaft limit induction block and output shaft limiting detector closest to when there are a distance of reaction, the distance of reaction to be
1.5CM, main motor output shaft often rotate a circle, and output shaft limiting detector is made to export one and represents main motor output shaft operation
Pulse electrical signal.
3. cold straightener main transmission universal shaft protective device as described in claim 1, it is characterised in that：
The universal shaft limit induction block and universal shaft limiting detector matching use, and make universal shaft limiting detector output universal
The concrete structure of axis operating state signal is：
The universal shaft limiting detector has the side of output shaft mounted on General Motors Gearbox using inductance approach switch
Roll side, detector is towards on the universal shaft being connect with main motor output shaft, universal shaft other end connection straightening roll, the inductance
Formula, using the positive-negative-positive inductance approach switch open in usual of model Siemens PXI400, is the cylinder of diameter 5mm close to switch
Shape structure；
The universal shaft limit induction block is iron block, is welded on universal shaft, and rotates to universal shaft limit induction in universal shaft
The detector of block and universal shaft limiting detector closest to when there are a distance of reaction, distance of reaction 1.5CM, universal shaft is every
It rotates a circle, universal shaft limiting detector is made to export a pulse electrical signal for representing universal shaft operation.
4. cold straightener main transmission universal shaft protective device as described in claim 1, it is characterised in that：
The output terminal of the alarm system is also connect with one mounted on the indoor flashing red light of electric operation.
5. a kind of carry out cold leveling using such as claim 1-4 any one of them cold straightener main transmission universal shafts protective device
Owner is driven universal shaft guard method, it is characterised in that comprises the steps of：
S1, output torque when being run using moment inspecting system detectio cold straightener main transmission universal shaft, obtains universal axle power
Square signal；
S2 using the operating status for running detecting system detection cold straightener main transmission, obtains main transmission operating state signal, institute
It states main transmission operating state signal and includes output shaft operating state signal and universal shaft operating state signal, which specifically wraps
Contain：
S21 is limited the operating status of detector and output shaft limit induction block detection main motor output shaft using output shaft, obtained
The output shaft operating state signal；
S22 is limited the operating status of detector and universal shaft limit induction block detection universal shaft using universal shaft, obtains described ten thousand
To axis operating state signal；
Step S1 and S2 the universal shaft output torque signal measured and main transmission operating state signal are input to PLC controls by S3
Device, carries out logic judgment and processing, the step specifically include：
S31, PLC controller carry out logic judgment and processing to the main transmission operating state signal of input, if it is judged that main
Transmission operating status breaks down, and PLC controller sends out alarm signal to alarm system, makes the operation picture of cold strong operation display
Malfunction coefficient is carried out on face, while PLC controller sends out to Main Drive Control System and stops main transmission CRANK PULSES, main transmission stops
It only runs, the above process since step S1 again after fixing a breakdown；
S32, PLC controller carries out logic judgment and processing to the universal shaft torque signals of input, if it is judged that universal shaft
Torque is known as high-torque occur when being more than the torque upper limit value of setting, and the mair motor speed of PLC controller control at this time reduces, and makes it
Rotating speed is slack-off, if also there is high-torque, represents to break down, and PLC controller sends out alarm signal to alarm system, makes cold rectify
It operates and carries out malfunction coefficient on the operation screen of display, while that triggers cold straightener equipment opens defencive function soon, makes aligning
Roller is lifted automatically, is detached from steel plate contact, is continued the step after fixing a breakdown.
6. cold straightener main transmission universal shaft guard method as claimed in claim 5, it is characterised in that：
The step S31 is specifically comprised the steps of：
S311, PLC controller carry out logic judgment and processing to the output shaft operating state signal of input：Main motor output shaft is every
It rotates a circle, the pulse signal that PLC controller will receive an output shaft rotation represents that main motor output shaft rotation is normal, such as
Fruit provides that PLC controller judgement in rotation time of 5 times does not receive the pulse of an output shaft rotation in main motor output shaft
Signal represents that main motor output shaft breaks down, and PLC controller sends out alarm signal to alarm system, by alarm system to master
Malfunction coefficient is carried out on the operation screen of the cold strong operation display of driving control system, while PLC controller is to main transmission control
System processed, which is sent out, stops main transmission CRANK PULSES, out of service by Main Drive Control System control main transmission, and master is checked after alarm
Motor output shaft state is resumed production after main motor output shaft is normal, again the above process since step S1；
S312, PLC controller carry out logic judgment and processing to the universal shaft operating state signal of input：Universal shaft often rotates one
Week, the pulse signal that PLC controller will receive a universal shaft rotation represent that universal shaft rotation is normal, if in universal axle gauge
Surely the pulse signal that PLC controller judgement in the time of 5 times does not receive a universal shaft rotation is rotated, represents universal shaft
Failure, PLC controller send out alarm signal to alarm system, and the malfunction coefficient of operation screen, while PLC are carried out by alarm system
Controller is sent out to Main Drive Control System stops main transmission CRANK PULSES, stops fortune by Main Drive Control System control main transmission
Row, alarm check universal Spindle Status, resume production after universal shaft is normal, again the above process since step S1.
7. cold straightener main transmission universal shaft guard method as claimed in claim 5, it is characterised in that：
The step S32 is specifically included：
The upper limit value of universal shaft torque output is set in PLC controller, if it is judged that universal shaft torque is more than setting
It is known as high-torque occur during torque upper limit value, PLC controller adjusts the reference value of main motor rotary speed, and this signal is sent
Main Drive Control System, control mair motor speed reduce, make its rotating speed slack-off, if high-torque is always maintained at, more than
That cold straightener equipment is just triggered after 5S opens defencive function soon, and straightening roll is made to be lifted automatically, is detached from steel plate contact, and check scene
State, the scene of elimination cause the failure of high-torque, continue this step, if scene is without exception, continue high-torque occur, and representing should
Steel plate cannot be aligned or need model optimization, need to stop main transmission operation at this time, carry out respective handling.
8. cold straightener main transmission universal shaft guard method as claimed in claim 5, it is characterised in that：
The alarm system also sends out flashing red light flash signal when failure occurs.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510725350.9A CN106623676B (en) | 2015-10-29 | 2015-10-29 | Cold straightener main transmission universal shaft protective device and method |
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| CN201510725350.9A CN106623676B (en) | 2015-10-29 | 2015-10-29 | Cold straightener main transmission universal shaft protective device and method |
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| CN106623676B true CN106623676B (en) | 2018-07-06 |
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| CN111830896A (en) * | 2020-07-17 | 2020-10-27 | 太原理工大学 | Method for improving electric running state of pipe belt conveyor |
| CN112228362B (en) * | 2020-10-12 | 2022-02-11 | 上海沃克通用设备有限公司 | Industrial centrifugal fan with auxiliary transmission system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW476678B (en) * | 1999-03-31 | 2002-02-21 | Kawasaki Steel Co | Shape controlling method of plate rolling and its related device |
| CN202427863U (en) * | 2012-01-13 | 2012-09-12 | 宝山钢铁股份有限公司 | Security protecting device for work roller of cold straightening machine |
| CN103978124A (en) * | 2014-03-20 | 2014-08-13 | 成都丽元电器有限公司 | Punching and shearing machine with photoelectric alarm function |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100988501B1 (en) * | 2003-10-30 | 2010-10-20 | 주식회사 포스코 | Tension control method for steel plate coiler |
| TWM476678U (en) * | 2013-12-30 | 2014-04-21 | xian-min Yang | Electronic torque wrench and torque measuring device thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW476678B (en) * | 1999-03-31 | 2002-02-21 | Kawasaki Steel Co | Shape controlling method of plate rolling and its related device |
| CN202427863U (en) * | 2012-01-13 | 2012-09-12 | 宝山钢铁股份有限公司 | Security protecting device for work roller of cold straightening machine |
| CN103978124A (en) * | 2014-03-20 | 2014-08-13 | 成都丽元电器有限公司 | Punching and shearing machine with photoelectric alarm function |
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