CN104692256B - Lifting equipment safety control method - Google Patents
Lifting equipment safety control method Download PDFInfo
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- CN104692256B CN104692256B CN201510130128.4A CN201510130128A CN104692256B CN 104692256 B CN104692256 B CN 104692256B CN 201510130128 A CN201510130128 A CN 201510130128A CN 104692256 B CN104692256 B CN 104692256B
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- crane
- police
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- wheel
- span
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
- B66C15/06—Arrangements or use of warning devices
- B66C15/065—Arrangements or use of warning devices electrical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/48—Automatic control of crane drives for producing a single or repeated working cycle; Programme control
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
The invention discloses a lifting equipment safety control method which includes the following steps that 1, a lifting equipment assembly is initialized, handshake communication is conducted on a lifting equipment assembly signal and a PLC, and the initial information of the lifting equipment assembly is obtained; 2, when the initial information of the lifting equipment assembly is inconsistent with the information prestored in the PLC, the actual working position of the lifting equipment assembly is proofread again; 3, after proofreading is conducted again, safety check is conducted on the lifting equipment assembly, span detection is conducted on the rail span, the detected data are stored in a memory, and an alarm is given out if a span error is not in the safety working range.
Description
Technical field
The present invention relates to automatic field, more particularly, to a kind of crane gear method of controlling security.
Background technology
Crane, as the haulage equipment of great object, plays vital effect in process of production.It has dress
The advantage of fortune efficiency high.
Hoisting machinery, as special equipment, is constantly subjected to the great attention of country for a long time, is to realize safety in production
Important leverage, is also necessarily subject to the equipment of routine monitoring.At present, the most of crane gear of China lacks the automatic note of operation conditions
Recording device, or automatic monitoring device scientifically safeguarded it is impossible to provide the user with accurate information in time to equipment, examines on time
Repair, then scrap.Besides the safety of our national existing equipments there are still larger gap compared with abroad.Thus made
A little crane gears run in spite of illness, and the super life-span is run, and easily cause the accident hidden danger.And some equipment in useful life just as
Time reason is forced to scrap, and causes unnecessary waste.In the concrete operations of crane, crane running precision, lifting
All kinds of gate controlled switch of machine and the collection to crane various kinds of equipment data, all rest on the starting stage.
The life-span for crane for the maintaining of crane and the life to operator cause safely sight important.In the past rise
Heavy-duty machine maintaining leans on the experience of operator and the mandatory provision of company to implement repair and maintenance entirely, checks too frequently to human and material resources
Cause unnecessary waste；Check too sparse, crane may go to work braving one's illness, and can cause inevitable accident, need badly
Those skilled in the art solve above-mentioned technical problem.
Content of the invention
It is contemplated that at least solving technical problem present in prior art, especially innovatively proposing a kind of rising and reseting
Standby method of controlling security.
In order to realize the above-mentioned purpose of the present invention, the invention provides a kind of crane gear method of controlling security, it is crucial
It is, comprise the steps:
Step 1, crane gear assembly is initialized, and described crane gear component signals and plc controller are held
Handss communicate, and obtain the initial information of described crane gear assembly；
Step 2, when the prestored information in the initial information of described crane gear assembly and plc controller is inconsistent, weight
Newly proofread the real work position of described crane gear assembly；
Step 3, after the completion of again proofreading, carries out safety inspection, obtains and rail span is carried out to crane facility assembly
Span detect, as span s≤10m, then judge span error delta s=± 3mm whether between ± 3mm, if not ± 3mm it
Between then report to the police；Work as s > 10m, then judge the scope of span error delta s=[3+0.25 (s-10)] mm and judge whether in safe work
Within the scope of work, if detection data being shown by display device, and detection data is being stored memorizer, if not
Then reporting to the police.
Described crane gear method of controlling security is it is preferred that described step 3 includes:
Step 3-a1, carries out safety verification to the rail of crane facility assembly, checks that rail traffic direction whether there is
Barrier, around measurement crane facility assembly whether live wire or other hinder object moving；
Step 3-a2, checks the clean conditions of track to raceway surface, checks that track is entirely by upper and lower, left and right directions
No have gryposis；
Step 3-a3, carries out span detection to rail span, as span s≤10m, then judges span error delta s=± 3mm
Whether between ± 3mm, if not between ± 3mm, reported to the police；Work as s > 10m, then judge span error delta s=[3+0.25 (s-
10)] the scope of mm, if not in this scope, reported to the police；
Step 3-a4, checks to the track tread gradient of track, judges that the track level measuring difference of same rail section is little
In 10mm, track spacing of joints is less than or equal to 2mm；
Step 3-a5, detection track hinders into whether device has deformation, the danger damaging, coming off；When with bolts, bolt
Whether have loosening, during using being welded to connect, whether weld seam has crackle；
After step 3-a1 to 3-a5 detection is finished, without exception, by plc controller to described lifting
Miscellaneous part in machine equipment assembly is checked.
3rd, crane gear method of controlling security according to claim 1 is it is characterised in that described step 3 also includes:
Step 3-b1, detects to crane facility assembly wheel crane span structure, when crane facility assembly wheel crane span structure away from
From s≤10m, during its contact point height tolerance δ hr≤5.5mm, then for normal, if not in this scope, execute s > 10m, it connects
Contact height tolerance δ hr≤[5.5+0.1 (s-10)] mm, if not in this scope, reported to the police；
Step 3-b2, judges the cornerwise difference of crane facility assembly wheel crane span structure, if for δ s≤5mm, otherwise report
Alert；
Step 3-b3, judge crane facility assembly wheel crane span structure apart from s≤10m when, its span deviation δ s=±
During 5.5mm, then for normal, if not in this scope, when executing s > 10m, its span deviation δ s=± 5.5+0.1 (s-10) mm；
Maximum is less than ± 15mm.
Described crane gear method of controlling security is it is preferred that described step 3 also includes:
Step 3-c1, the girder to crane facility assembly wheel crane span structure and the safety coefficient of end carriage judge, detection
Connection between girder and carriage weld seam and detect connecting bolt；
Step 3-c2, judges whether the camber of crane facility assembly wheel crane span structure is peak crane span structure portion s/10
In the range of, arch up angle value δ f >=0.7s/1000, if not in this range, reports to the police；
Step 3-c3, judges the girder horizontal tortuosity of crane facility assembly wheel crane span structure, as horizontal curvature value δ ff
≤ s/2000, then for normal, otherwise report to the police；
Step 3-c4, judges the end carriage cardinal distance deviation of crane facility assembly wheel crane span structure, as cardinal distance deviation e≤3m
When, then δ e=± 4mm；When cardinal distance deviation e > 3m when, δ e=± 1.25e (mm), otherwise report to the police；
Step 3-c5, judge the trolley travelling track pressing plate of crane facility assembly wheel crane span structure whether occur slight crack or
Loosened screw, if there is slight crack or loosened screw, then reports to the police, and otherwise executes next step；
Step 3-c6, judges the trolley track tread wear intensity of crane facility assembly wheel crane span structure, when wear intensity≤former
During tread size 10%, then report to the police；
Step 3-c7, judges the dolly span value of crane facility assembly wheel crane span structure, the end of central rail or half beam-and-rail partially
Portion δ s=± 2mm；S≤19.5m, then the middle part δ s=+1～5mm of middle rail or half beam-and-rail partially；The end of central rail or half beam-and-rail partially
Portion s > 19.5m, then the middle part δ s=+1～7mm of middle rail or half beam-and-rail partially, otherwise reports to the police；
Step 3-c8, as the dolly span s≤2m of crane facility assembly wheel crane span structure, then same section difference of height a
≤5.3mm；As s > 2m when, a≤2s (mm)；And same section difference of height maximum≤8mm, otherwise report to the police.
Described crane gear method of controlling security is it is preferred that described step 3 also includes:
Step 3-d1, judges whether the brake of crane facility assembly wheel crane span structure is working properly, such as abnormal, holds
Row next step；
Step 3-d2, the brake rim riveting of the brake of detection crane facility assembly wheel crane span structure or assembled braking
Whether the wear extent of liner reaches the 50% of liner original thickness, if it exceeds 50% warning；Detect the band of described brake
Whether the wear extent of the clamp-type brake liner of steel back reaches the 2/3 of liner original thickness, if it exceeds 2/3 warning；Detection institute
State riveting or assembled brake rim or the clamp-type brake pad surfaces with steel back carbonization or peel off whether area reaches lining
The 30% of pad area, if it exceeds 30% warning；
Step 3-d3, judges the parameter and standard of braked wheel in the shaft coupling of crane facility assembly wheel crane span structure, works as braking
Wheel braking face thickness abrasion reaches the 50% of original thickness, then report to the police, when the wheel face ruggedness of braked wheel reaches 1.5mm, then report
Alert；
Step 3-d4, judges whether the work suspension hook of crane facility assembly wheel crane span structure slight crack, when work suspension hook
Mouth of hook opening size exceeds basic size 10%, then report to the police；When the wear extent of work suspension hook exceedes 5% report of basic size
Alert, there are deformation, or 10 times after the bending radius of lateral deformation is less than plate at the critical section and hook neck of work suspension hook, then
Report to the police；
Step 3-d5, judges that the pulley race uneven wear of the work suspension hook of crane facility assembly wheel crane span structure reaches
3mm, then report to the police；When the pulley race wall thickness abrasion of work suspension hook exceedes the 20% of origianl wall thickness, then report to the police；Because abrasion makes work hang
When hook pulley race base diameter decrement exceedes the 50% of wirerope diameter, then report to the police；
Described crane gear method of controlling security is it is preferred that described step 3 also includes:
Step 3-e1, the security parameter of detection crane facility assembly wheel crane span structure main wheel, when wheel surface abrasion
When flange thnickness abrasion exceedes the 50% of original thickness, then report to the police, when main wheel wheel rim flexural deformation exceedes the 20% of original thickness,
Then report to the police, when the abrasion of main wheel tread thickness exceedes the 15% of original thickness, then report to the police, when the main wheel speed of service is less than 50m/
During min, when circularity is more than 1mm, and when the main wheel speed of service is higher than 50m/min, when circularity is more than 0.1mm, then report to the police；
Step 3-e2, whether the working condition of the electromagnetic contactor in detection crane facility assembly is normal, and electromagnetism is connect
The contact of tentaculum carries out traversal and checks, if action is insensitive, contact is not tight, then report to the police；
Step 3-e3, the crane runway of detection crane facility assembly, and the connecing of any point on crane facility
Ground resistance all cannot be greater than 4 ω；Then report to the police more than 4 ω；Work rated voltage is not more than 500v, electric wiring insulated electro over the ground
Resistance, is not less than 1m ω, is not less than 0.5m ω, otherwise reports to the police in wet environment.
In sum, due to employing technique scheme, the invention has the beneficial effects as follows:
Crane gear safe and stable operation is ensured by the present invention, plc controller is passed through to ancillary equipment such as cart, dollies
It is controlled, improves work efficiency, reduce the potential safety hazard of crane gear, for the industry, breakthrough has achieved
Heavy equipment stably quickly checks and controls work.
The additional aspect of the present invention and advantage will be set forth in part in the description, and partly will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description
The above-mentioned and/or additional aspect of the present invention and advantage will become from reference to the description to embodiment for the accompanying drawings below
Substantially and easy to understand, wherein:
Fig. 1 is crane gear method of controlling security flow chart of the present invention；
Specific embodiment
Embodiments of the invention are described below in detail, the example of described embodiment is shown in the drawings, wherein from start to finish
The element that same or similar label represents same or similar element or has same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In describing the invention it is to be understood that term " longitudinal ", " horizontal ", " on ", D score, "front", "rear",
The orientation of instruction such as "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward " or position relationship are based on accompanying drawing institute
The orientation showing or position relationship, are for only for ease of the description present invention and simplify description, rather than the dress of instruction or hint indication
Put or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that limit to the present invention
System.
In describing the invention, unless otherwise prescribed and limit, it should be noted that term " installation ", " being connected ",
" connection " should be interpreted broadly, for example, it may be the connection of mechanical connection or electrical connection or two element internals, can
To be to be joined directly together it is also possible to be indirectly connected to by intermediary, for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term.
The invention provides a kind of crane gear method of controlling security, it is it is critical that comprise the steps:
Step 1, crane gear assembly is initialized, and described crane gear component signals and plc controller are held
Handss communicate, and obtain the initial information of described crane gear assembly；
Step 2, when the prestored information in the initial information of described crane gear assembly and plc controller is inconsistent, weight
Newly proofread the real work position of described crane gear assembly；
Step 3, after the completion of again proofreading, carries out safety inspection, obtains and rail span is carried out to crane facility assembly
Span detect, as span s≤10m, then judge span error delta s=± 3mm whether between ± 3mm, if not ± 3mm it
Between then report to the police；Work as s > 10m, then judge the scope of span error delta s=[3+0.25 (s-10)] mm and judge whether in safe work
Within the scope of work, if detection data being shown by display device, and detection data is being stored memorizer, if not
Then reporting to the police.
Described crane gear method of controlling security is it is preferred that described step 3 includes:
Step 3-a1, carries out safety verification to the rail of crane facility assembly, checks that rail traffic direction whether there is
Barrier, around measurement crane facility assembly whether live wire or other hinder object moving；
Step 3-a2, checks the clean conditions of track to raceway surface, checks that track is entirely by upper and lower, left and right directions
No have gryposis；
Step 3-a3, carries out span detection to rail span, as span s≤10m, then judges span error delta s=± 3mm
Whether between ± 3mm, if not between ± 3mm, reported to the police；Work as s > 10m, then judge span error delta s=[3+0.25 (s-
10)] the scope of mm, if not in this scope, reported to the police；
Step 3-a4, checks to the track tread gradient of track, judges that the track level measuring difference of same rail section is little
In 10mm, track spacing of joints is less than or equal to 2mm；
Step 3-a5, detection track hinders into whether device has deformation, the danger damaging, coming off；When with bolts, bolt
Whether have loosening, during using being welded to connect, whether weld seam has crackle；
After step 3-a1 to 3-a5 detection is finished, without exception, by plc controller to described lifting
Miscellaneous part in machine equipment assembly is checked.
3rd, crane gear method of controlling security according to claim 1 is it is characterised in that described step 3 also includes:
Step 3-b1, detects to crane facility assembly wheel crane span structure, when crane facility assembly wheel crane span structure away from
From s≤10m, during its contact point height tolerance δ hr≤5.5mm, then for normal, if not in this scope, execute s > 10m, it connects
Contact height tolerance δ hr≤[5.5+0.1 (s-10)] mm, if not in this scope, reported to the police；
Step 3-b2, judges the cornerwise difference of crane facility assembly wheel crane span structure, if for δ s≤5mm, otherwise report
Alert；
Step 3-b3, judge crane facility assembly wheel crane span structure apart from s≤10m when, its span deviation δ s=±
During 5.5mm, then for normal, if not in this scope, when executing s > 10m, its span deviation δ s=± 5.5+0.1 (s-10) mm；
Maximum is less than ± 15mm.
Described crane gear method of controlling security is it is preferred that described step 3 also includes:
Step 3-c1, the girder to crane facility assembly wheel crane span structure and the safety coefficient of end carriage judge, detection
Connection between girder and carriage weld seam and detect connecting bolt；
Step 3-c2, judges whether the camber of crane facility assembly wheel crane span structure is peak crane span structure portion s/10
In the range of, arch up angle value δ f >=0.7s/1000, if not in this range, reports to the police；
Step 3-c3, judges the girder horizontal tortuosity of crane facility assembly wheel crane span structure, as horizontal curvature value δ ff
≤ s/2000, then for normal, otherwise report to the police；
Step 3-c4, judges the end carriage cardinal distance deviation of crane facility assembly wheel crane span structure, as cardinal distance deviation e≤3m
When, then δ e=± 4mm；When cardinal distance deviation e > 3m when, δ e=± 1.25e (mm), otherwise report to the police；
Step 3-c5, judge the trolley travelling track pressing plate of crane facility assembly wheel crane span structure whether occur slight crack or
Loosened screw, if there is slight crack or loosened screw, then reports to the police, and otherwise executes next step；
Step 3-c6, judges the trolley track tread wear intensity of crane facility assembly wheel crane span structure, when wear intensity≤former
During tread size 10%, then report to the police；
Step 3-c7, judges the dolly span value of crane facility assembly wheel crane span structure, the end of central rail or half beam-and-rail partially
Portion δ s=± 2mm；S≤19.5m, then the middle part δ s=+1～5mm of middle rail or half beam-and-rail partially；The end of central rail or half beam-and-rail partially
Portion s > 19.5m, then the middle part δ s=+1～7mm of middle rail or half beam-and-rail partially, otherwise reports to the police；
Step 3-c8, as the dolly span s≤2m of crane facility assembly wheel crane span structure, then same section difference of height a
≤5.3mm；As s > 2m when, a≤2s (mm)；And same section difference of height maximum≤8mm, otherwise report to the police.
Described crane gear method of controlling security is it is preferred that described step 3 also includes:
Step 3-d1, judges whether the brake of crane facility assembly wheel crane span structure is working properly, such as abnormal, holds
Row next step；
Step 3-d2, the brake rim riveting of the brake of detection crane facility assembly wheel crane span structure or assembled braking
Whether the wear extent of liner reaches the 50% of liner original thickness, if it exceeds 50% warning；Detect the band of described brake
Whether the wear extent of the clamp-type brake liner of steel back reaches the 2/3 of liner original thickness, if it exceeds 2/3 warning；Detection institute
State riveting or assembled brake rim or the clamp-type brake pad surfaces with steel back carbonization or peel off whether area reaches lining
The 30% of pad area, if it exceeds 30% warning；
Step 3-d3, judges the parameter and standard of braked wheel in the shaft coupling of crane facility assembly wheel crane span structure, works as braking
Wheel braking face thickness abrasion reaches the 50% of original thickness, then report to the police, when the wheel face ruggedness of braked wheel reaches 1.5mm, then report
Alert；
Step 3-d4, judges whether the work suspension hook of crane facility assembly wheel crane span structure slight crack, when work suspension hook
Mouth of hook opening size exceeds basic size 10%, then report to the police；When the wear extent of work suspension hook exceedes 5% report of basic size
Alert, there are deformation, or 10 times after the bending radius of lateral deformation is less than plate at the critical section and hook neck of work suspension hook, then
Report to the police；
Step 3-d5, judges that the pulley race uneven wear of the work suspension hook of crane facility assembly wheel crane span structure reaches
3mm, then report to the police；When the pulley race wall thickness abrasion of work suspension hook exceedes the 20% of origianl wall thickness, then report to the police；Because abrasion makes work hang
When hook pulley race base diameter decrement exceedes the 50% of wirerope diameter, then report to the police；
Described crane gear method of controlling security is it is preferred that described step 3 also includes:
Step 3-e1, the security parameter of detection crane facility assembly wheel crane span structure main wheel, when wheel surface abrasion
When flange thnickness abrasion exceedes the 50% of original thickness, then report to the police, when main wheel wheel rim flexural deformation exceedes the 20% of original thickness,
Then report to the police, when the abrasion of main wheel tread thickness exceedes the 15% of original thickness, then report to the police, when the main wheel speed of service is less than 50m/
During min, when circularity is more than 1mm, and when the main wheel speed of service is higher than 50m/min, when circularity is more than 0.1mm, then report to the police；
Step 3-e2, whether the working condition of the electromagnetic contactor in detection crane facility assembly is normal, and electromagnetism is connect
The contact of tentaculum carries out traversal and checks, if action is insensitive, contact is not tight, then report to the police；
Step 3-e3, the crane runway of detection crane facility assembly, and the connecing of any point on crane facility
Ground resistance all cannot be greater than 4 ω；Then report to the police more than 4 ω；Work rated voltage is not more than 500v, electric wiring insulated electro over the ground
Resistance, is not less than 1m ω, is not less than 0.5m ω, otherwise reports to the police in wet environment.
Described crane gear assembly includes: track, cart, dolly, girder, end carriage, raising cantilever, rail clamping device, coil of cable
Cylinder, emergency stop switch, anemobiagraph, display device
1st, by be arranged on the encoder of lifting mechanism through plc processing data measure the real-time lifting altitude of lifting mechanism,
Accumulative use time, real time execution time, accumulative braking number of times, accumulative range ability, accumulative spacing number of times, real time execution direction
Deng.
2nd, measure lifting mechanism real-time raising weight by being arranged on the load transducer of lifting mechanism through plc processing data
Amount, accumulative overload number of times (being occurred by report form) etc..
3rd, by being arranged on the limit switch of stopper mechanism, monitor brake operation state.
4th, for door machine, real-time wind speed is monitored by air velocity transducer, by rail clamping device and anchoring device to crane in wind
Real-time guard when speed is excessive；Big mechanism of car is carried out run control by cable drum working signal, prevent from breaking cable；Pass through
Correcting coding device, when traveling mechanism of the larger traveller two motor operation is inconsistent, realizes automatic or manual correction.
5th, measure the real time execution position of big trolley body through plc process by being arranged on the encoder of big trolley body
Put, add up use time, accumulative braking number of times, accumulative range ability, real time execution direction etc..
6th, measure the spacing and accumulative of big trolley body by being arranged on the limit switch of big trolley body through plc process
Spacing number of times.
7th, 1～4 content can be shown by safety monitoring system on the touchscreen.If increasing on old crane
This system, input and output point can be connected in the existing control loop of crane and can achieve the protection to crane and monitoring.
8th, pass through the physical location of screen system Real Time Observation suspension centre, also can Real Time Observation large vehicle walking area for door machine
Domain.
9th, system data storage information or image information comprise the numbering of data or image, time and date, sampling period
Less than 100ms.There is independent ups power supply, after hoist power-cut, system energy continuous firing, transfer in working continuously
Data, hoisting machinery data completely preserves.System can point out management personnel to carry before memory capacity reaches the storage time of setting
Front backup preserves.The storage time of data is no less than 30 working days, and screen storage time is no less than 72 hours.
10th, system setting authority, can be by usb or Ethernet interface by data and backup image.
11st, for the setting of parameter: increase this equipment if old crane, as long as this equipment is arranged on crane
On, the corresponding actual rated load weight of crane, big dolly wheel diameter, drum diameter, size garage journey are permissible by touch screen
Directly input, then each for crane mechanism is run to starting point and carry out zero-bit and verify；For new crane before dispatching from the factory
Completed it is only necessary to verify at the scene according to crane parameter setting.
The invention has the benefit that
1st, all crane operational factors and state centralized displaying, operator control lifting process at any time.
2nd, audible and visual alarm prompting, real-time reminding operator lifts by crane every exception of process and needs Maintenance Significant Items.
3rd, data recording function, is easy to the analysis after fault.
4th, the seeding data recording of 30 days, 72h screen image record, the workload of every crane of statistics and each operation
The workload of member, to formulate more reasonably operation plan.
5th, the alarm record of 30 days, the operating process of standard operation person.
6th, integrated system statistics provides the user with accurate information and equipment is scientifically safeguarded in time, overhauls on time.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy describing with reference to this embodiment or example
Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Necessarily refer to identical embodiment or example.And, the specific features of description, structure, material or feature can be any
One or more embodiments or example in combine in an appropriate manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
Multiple changes, modification, replacement and modification can be carried out to these embodiments in the case of the principle of the disengaging present invention and objective, this
The scope of invention is limited by claim and its equivalent.
Claims (5)
1. a kind of crane gear method of controlling security is it is characterised in that comprise the steps:
Step 1, crane gear assembly is initialized, and described crane gear component signals and plc controller is carried out shaking hands logical
Letter, obtains the initial information of described crane gear assembly；
Step 2, when the prestored information in the initial information of described crane gear assembly and plc controller is inconsistent, school again
Real work position to described crane gear assembly；
Step 3, after the completion of again proofreading, carries out safety inspection, obtains and carry out span to rail span to crane facility assembly
Detection, as span s≤10m, then judges span error delta s=± 3mm whether between ± 3mm, if not between ± 3mm,
Report to the police；Work as s > 10m, then judge the scope of span error delta s=[3+0.25 (s-10)] mm and judge whether in trouble free service model
Within enclosing, if, detection data is shown by display device, and detection data is stored memorizer, if it was not then
Report to the police；
Measure the real-time lifting altitude of lifting mechanism, add up to make through plc processing data by being arranged on the encoder of lifting mechanism
With time, real time execution time, accumulative braking number of times, accumulative range ability, accumulative spacing number of times, real time execution direction；
Play liter weight, tired by being arranged on the load transducer of lifting mechanism and measuring lifting mechanism through plc processing data in real time
Meter overload number of times；
By being arranged on the limit switch of stopper mechanism, monitor brake operation state；
For door machine, real-time wind speed is monitored by air velocity transducer, excessive in wind speed to crane by rail clamping device and anchoring device
When real-time guard；Big mechanism of car is carried out run control by cable drum working signal, prevent from breaking cable；Compiled by correction
Code device, when traveling mechanism of the larger traveller two motor operation is inconsistent, realizes automatic deviation correction；Above-mentioned data is shown on the touchscreen
Come；
Described step 3 also includes:
Step 3-e1, the security parameter of detection crane facility assembly wheel crane span structure main wheel, when the wheel rim of wheel surface abrasion
When thickness abrasion exceedes the 50% of original thickness, then report to the police, when main wheel wheel rim flexural deformation exceedes the 20% of original thickness, then report
Alert, when the abrasion of main wheel tread thickness exceedes the 15% of original thickness, then report to the police, when the main wheel speed of service is less than 50m/min
When, when circularity is more than 1mm, and when the main wheel speed of service is higher than 50m/min, when circularity is more than 0.1mm, then report to the police；
Step 3-e2, whether the working condition of the electromagnetic contactor in detection crane facility assembly is normal, to electromagnetic contactor
Contact carry out traversal check, if action is insensitive, contact is not tight, then report to the police；
Step 3-e3, detection crane facility assembly crane runway, and on crane facility any point ground connection electricity
Resistance all cannot be greater than 4 ω；Then report to the police more than 4 ω；Work rated voltage is not more than 500v, electric wiring insulation resistance over the ground,
It is not less than 0.8m ω, be not less than 0.4m ω in wet environment, otherwise report to the police.
2. crane gear method of controlling security according to claim 1 is it is characterised in that described step 3 includes:
Step 3-a1, carries out safety verification to the rail of crane facility assembly, checks that rail traffic direction whether there is obstacle
Thing, around measurement crane facility assembly whether live wire or other hinder object moving；
Step 3-a2, checks the clean conditions of track to raceway surface, checks whether track all has by upper and lower, left and right directions
Gryposis；
Step 3-a3, carries out span detection to rail span, as span s≤10m, then whether judges span error delta s=± 3mm
Between ± 3mm, if not between ± 3mm, reported to the police；Work as s > 10m, then judge span error delta s=[3+0.25 (s-10)]
The scope of mm, if not in this scope, reported to the police；
Step 3-a4, checks to the track tread gradient of track, judges that the track level measuring difference of same rail section is less than
10mm, track spacing of joints is less than or equal to 2mm；
Step 3-a5, detection track hinders into whether device has deformation, the danger damaging, coming off；When with bolts, whether bolt
Have loosening, during using being welded to connect, whether weld seam has crackle；
After step 3-a1 to 3-a5 detection is finished, without exception, by plc controller, described crane is set
Miscellaneous part in slave component is checked.
3. crane gear method of controlling security according to claim 1 is it is characterised in that described step 3 also includes:
Step 3-b1, detects to crane facility assembly wheel crane span structure, when crane facility assembly wheel crane span structure apart from s≤
10m, during its contact point height tolerance δ hr≤5.5mm, then for normal, if not in this scope, executes s > 10m, its contact point
Height tolerance δ hr≤[5.5+0.1 (s-10)] mm, if not in this scope, reported to the police；
Step 3-b2, judges the cornerwise difference of crane facility assembly wheel crane span structure, if for δ s≤5mm, otherwise report to the police；
Step 3-b3, judge crane facility assembly wheel crane span structure apart from s≤10m when, during its span deviation δ s=± 5.5mm,
It is then normal, if not in this scope, when executing s > 10m, its span deviation δ s=± 5.5+0.1 (s-10) mm；The most very much not surpass
Cross ± 15mm.
4. crane gear method of controlling security according to claim 1 is it is characterised in that described step 3 also includes:
Step 3-c1, the girder to crane facility assembly wheel crane span structure and the safety coefficient of end carriage judge, detect girder
With end carriage attachment weld and detect connecting bolt；
Step 3-c2, judges whether the camber of crane facility assembly wheel crane span structure is peak crane span structure portion s/10 scope
Interior, arch up angle value δ f >=0.7s/1000, if not in this range, reports to the police；
Step 3-c3, judges the girder horizontal tortuosity of crane facility assembly wheel crane span structure, as horizontal curvature value δ ff≤s/
2000, then for normal, otherwise report to the police；
Step 3-c4, judges the end carriage cardinal distance deviation of crane facility assembly wheel crane span structure, as cardinal distance deviation e≤3m,
Then δ e=± 4mm；When cardinal distance deviation e > 3m when, δ e=± 1.25e (mm), otherwise report to the police；
Step 3-c5, judges whether the trolley travelling track pressing plate of crane facility assembly wheel crane span structure slight crack or screw
Loosen, if there is slight crack or loosened screw, then report to the police, otherwise execute next step；
Step 3-c6, judges the trolley track tread wear intensity of crane facility assembly wheel crane span structure, when wear intensity≤former tread
During size 10%, then report to the police；
Step 3-c7, judges the dolly span value of crane facility assembly wheel crane span structure, the end δ s of central rail or half beam-and-rail partially
=± 2mm；S≤19.5m, then the middle part δ s=+1～5mm of middle rail or half beam-and-rail partially；The end s of central rail or half beam-and-rail partially >
19.5m, then the middle part δ s=+1～7mm of middle rail or half beam-and-rail partially, otherwise reports to the police；
Step 3-c8, as the dolly span s≤2m of crane facility assembly wheel crane span structure, then same section difference of height a≤
5.3mm；As s > 2m when, a≤2s (mm)；And same section difference of height maximum≤8mm, otherwise report to the police.
5. crane gear method of controlling security according to claim 1 is it is characterised in that described step 3 also includes:
Step 3-d1, judges whether the brake of crane facility assembly wheel crane span structure is working properly, under such as abnormal then execution
One step；
Step 3-d2, the brake rim riveting of the brake of detection crane facility assembly wheel crane span structure or assembled brake rim
Wear extent whether reach the 50% of liner original thickness, if it exceeds 50% warning；Detect the band steel back of described brake
The wear extent of clamp-type brake liner whether reach the 2/3 of liner original thickness, if it exceeds 2/3 warning；Detect described riveting
Connect or assembled brake rim or the clamp-type brake pad surfaces with steel back carbonization or peel off whether area reaches liner surface
Long-pending 30%, if it exceeds 30% warning；
Step 3-d3, judges the parameter and standard of braked wheel in the shaft coupling of crane facility assembly wheel crane span structure, when braked wheel system
Dynamic face thickness abrasion reaches the 50% of original thickness, then report to the police, when the wheel face ruggedness of braked wheel reaches 1.5mm, then report to the police；
Step 3-d4, judges whether the work suspension hook of crane facility assembly wheel crane span structure slight crack, when the work suspension hook mouth of hook
Opening size exceeds basic size 10%, then report to the police；When the wear extent of work suspension hook exceedes 5% warning of basic size, when
There is deformation at the critical section of work suspension hook and hook neck, or 10 times after the bending radius of lateral deformation is less than plate, then report to the police；
Step 3-d5, judges that the pulley race uneven wear of the work suspension hook of crane facility assembly wheel crane span structure reaches 3mm, then
Report to the police；When the pulley race wall thickness abrasion of work suspension hook exceedes the 20% of origianl wall thickness, then report to the police；Because abrasion makes work lifting hook pulley
When race base diameter decrement exceedes the 50% of wirerope diameter, then report to the police.
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| CN201510130128.4A CN104692256B (en) | 2015-03-24 | 2015-03-24 | Lifting equipment safety control method |
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| CN101210811A (en) * | 2006-12-28 | 2008-07-02 | 上海宝钢工业检测公司 | Hoist-transportation machine track plain relationship and relative height difference measuring method |
| CN100573045C (en) * | 2006-12-28 | 2009-12-23 | 上海宝钢工业检测公司 | Hoist-transportating machine rail span, linearity automated detection method |
| CN201222192Y (en) * | 2008-05-09 | 2009-04-15 | 大连海事大学 | Tower crane automatic safety monitoring system based on WLAN |
| CN103274303B (en) * | 2013-06-19 | 2015-01-07 | 常州市常欣电子衡器有限公司 | Control method for hoisting machinery safety monitoring and management system |
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