CN104692256A - Lifting equipment safety control method - Google Patents
Lifting equipment safety control method Download PDFInfo
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- CN104692256A CN104692256A CN201510130128.4A CN201510130128A CN104692256A CN 104692256 A CN104692256 A CN 104692256A CN 201510130128 A CN201510130128 A CN 201510130128A CN 104692256 A CN104692256 A CN 104692256A
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- police
- crane
- span structure
- lifting equipment
- wheel
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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
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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
- 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, particularly relate to a kind of weight-lifting equipment method of controlling security.
Background technology
Hoisting crane, as the haulage equipment of great object, plays vital effect in process of production.It has the high advantage of shipment efficiency.
Elevator machinery, as special equipment, is subject to the great attention of country for a long time always, is the important leverage realizing safety in production, also necessarily by the equipment of routine monitoring.At present, the most of weight-lifting equipment of China lacks the self recording unit of operation conditions, or automatic monitoring device, accurate information cannot be provided scientifically to safeguard in time equipment to user, overhaul on time, then scrap.Besides the safety of our national existing installation still also exists larger gap compared with abroad.Thus make some weight-lifting equipment run in spite of illness, the super life-span is run, and very easily cause the accident hidden danger.And some equipment is just forced to scrap because of time reason in available life, cause unnecessary waste.In the concrete operations of hoisting crane, all kinds of door contact of hoisting crane running precision, hoisting crane and the collection to hoisting crane various kinds of equipment data, all rest on the starting stage.
It is important that the life-span of maintaining for hoisting crane of hoisting crane and the life to operator cause safely sight.Hoisting crane maintaining in the past implements repair and maintenance by the experience of operator and the mandatory provision of company entirely, checks too frequently to cause unnecessary waste to human and material resources; Check too sparse, hoisting crane may go to work braving one's illness, and can cause inevitable accident, needs those skilled in the art badly and solves the problems of the technologies described above.
Summary of the invention
The present invention is intended at least solve the technical matters existed in prior art, especially innovatively proposes a kind of weight-lifting equipment method of controlling security.
In order to realize above-mentioned purpose of the present invention, the invention provides a kind of weight-lifting equipment method of controlling security, its key is, comprises the steps:
Step 1, weight-lifting equipment assembly carries out initialization, and described weight-lifting equipment component signals and PLC are carried out handshake communication, obtains the initial information of described weight-lifting equipment assembly;
Step 2, when the prestored information in the initial information and PLC of described weight-lifting equipment assembly is inconsistent, proofreads the real work position of described weight-lifting equipment assembly again;
Step 3, after again having proofreaded, carries out safety inspection to crane facility assembly, obtains and carry 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 the scope of span error delta S=[3+0.25 (S-10)] mm and judge whether within range of safety operation, if, shown by read out instrument and detect data, and detection data are stored into memory device, if not, then report to the police.
Described weight-lifting equipment method of controlling security, preferably, described step 3 comprises:
Step 3-A1, carries out safety verification to the rail of crane facility assembly, checks whether rail service direction exists obstacle, to measure around crane facility assembly whether live wire or other hinder object moving;
By upper and lower, left and right directions, step 3-A2, to the clean conditions of track surface inspection track, checks whether track all has 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 the scope of span error delta S=[3+0.25 (S-10)] mm, if not in this scope, reported to the police;
Step 3-A4, checks to the track tread gradient of track, judge 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, detects track and hinders the danger whether having distortion into device, damage, come off; Time with bolts, it is loosening whether bolt has, and when employing is welded to connect, whether weld seam has crackle;
After step 3-A1 to 3-A5 detection is finished, if not abnormal, by PLC, the miscellaneous part in described crane facility assembly is checked.
3, weight-lifting equipment method of controlling security according to claim 1, is characterized in that, described step 3 also comprises:
Step 3-B1, crane facility assembly wheel crane span structure is detected, as crane facility assembly wheel crane span structure distance S≤10m, during its contact point height tolerance Δ hr≤5.5mm, be then normal, if not in this scope, perform S>10m, its contact point height tolerance Δ hr≤[5.5+0.1 (S-10)] mm, if not in this scope, then reported to the police;
Whether step 3-B2, judges the cornerwise difference of crane facility assembly wheel crane span structure, be Δ S≤5mm, otherwise reports to the police;
Step 3-B3, when judging crane facility assembly wheel crane span structure distance S≤10m, during its span deviation delta S=± 5.5mm, be then normal, if not in this scope, when performing S>10m, its span deviation delta S=± 5.5+0.1 (s-10) mm; Maximumly be no more than ± 15mm.
Described weight-lifting equipment method of controlling security, preferably, described step 3 also comprises:
Step 3-C1, judges the girder of crane facility assembly wheel crane span structure and the safety factor of end carriage, detects connection between girder and carriage weld seam and detects tie bolt;
Step 3-C2, judges whether the camber of crane facility assembly wheel crane span structure is within the scope of vertex crane span structure portion S/10, and arch angle value Δ F >=0.7S/1000, if not within the scope of this, then 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, is then normal, otherwise reports to the police;
Step 3-C4, judges the end carriage cardinal distance deviate of crane facility assembly wheel crane span structure, as cardinal distance deviate e≤3m, then and Δ e=± 4mm; As cardinal distance deviate e>3m, Δ e=± 1.25e (mm), otherwise report to the police;
Step 3-C5, judges whether the trolley travelling rail pressing plate of crane facility assembly wheel crane span structure occurs slight crack or loosened screw, if there is slight crack or loosened screw, then reports to the police, otherwise performs 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 size 10%, then reports to the police;
Step 3-C7, judges the dolly span value of crane facility assembly wheel crane span structure, the end Δ S=± 2mm of central rail or half inclined beam-and-rail; S≤19.5m, then the middle part Δ S=+1 ~ 5mm of rail or half inclined beam-and-rail in; The end S>19.5m of central rail or half inclined beam-and-rail, then the middle part Δ S=+1 ~ 7mm of rail or half inclined beam-and-rail in, otherwise report to the police;
Step 3-C8, as the dolly span S≤2m of crane facility assembly wheel crane span structure, then same cross section difference of height A≤5.3mm; As S>2m, A≤2S (mm); And same cross section difference of height maxim≤8mm, otherwise report to the police.
Described weight-lifting equipment method of controlling security, preferably, described step 3 also comprises:
Step 3-D1, judges that whether the drg of crane facility assembly wheel crane span structure is working properly, as mal then performs next step;
Step 3-D2, whether the abrasion loss of the brake rim riveted joint or assembly type brake rim that detect the drg of crane facility assembly wheel crane span structure reaches 50% of liner original thickness, if more than 50%, reports to the police; Whether the abrasion loss detecting the clamp-type brake liner of the band steel backing of described drg reaches 2/3 of liner original thickness, if more than 2/3, reports to the police; The clamp-type brake pad surfaces detecting described riveted joint or assembly type brake rim or band steel backing there is charing or peel off whether area reaches liner area 30%, if more than 30%, report to the police;
Step 3-D3, judges the parameter and standard of brake wheel in the coupler of crane facility assembly wheel crane span structure, when the wearing and tearing of brake wheel brake surface thickness reach 50% of original thickness, then reports to the police, when the wheel face ruggedness of brake wheel reaches 1.5mm, then reports to the police;
Step 3-D4, judges whether the work suspension hook of crane facility assembly wheel crane span structure occurs slight crack, when work suspension hook mouth of hook opening size exceeds leading dimensions 10%, then reports to the police; When the abrasion loss of work suspension hook exceedes 5% warnings of leading dimensions, when there is distortion at the dangerous section of the suspension hook that works and hook neck place, or after the bending spring of lateral deformation is less than plate 10 times, then report to the police;
Step 3-D5, judges that the pulley race irregular wear of the work suspension hook of crane facility assembly wheel crane span structure reaches 3mm, then reports to the police; When the pulley race wall thickness wearing and tearing of work suspension hook exceed 20% of origianl wall thickness, then report to the police; When making work lifting hook pulley race base diameter reduction exceed 50% of wirerope diameter because wearing and tearing, then report to the police;
Described weight-lifting equipment method of controlling security, preferably, described step 3 also comprises:
Step 3-E1, detects the security parameter of the main wheel of crane facility assembly wheel crane span structure, when the flange thnickness abrasion of wheel surface wearing and tearing exceedes 50% of original thickness, then report to the police, when main wheel rim flexural deformation exceedes 20% of original thickness, then report to the police, when main wheel tread thickness wearing and tearing exceed 15% of original thickness, then report to the police, when main wheel running velocity is lower than 50m/min, when circularity is more than 1mm, and when main wheel running velocity is higher than 50m/min, when circularity is more than 0.1mm, then report to the police;
Step 3-E2, whether the mode of operation detecting the electromagnetic contactor in crane facility assembly is normal, carries out traversal inspection to the contact of electromagnetic contactor, if action is insensitive, contact is not tight, then report to the police;
Step 3-E3, detect the crane track of crane facility assembly, and on crane facility, the grounding resistance of any point all must not be greater than 4 Ω; Be greater than 4 Ω then to report to the police; Work rated voltage is not more than 500V, and electric wiring insulation resistance over the ground, is not less than 1M Ω, is not less than 0.5M Ω in wet environment, otherwise reports to the police.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
Weight-lifting equipment safe and stable operation is ensured by the present invention, the external equipment such as cart, dolly is controlled by PLC, increases work efficiency, reduce the potential safety hazard of weight-lifting equipment, for the industry, the breakthrough weight-lifting equipment that achieves stablizes fast speed inspection control work.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is weight-lifting equipment method of controlling security diagram of circuit of the present invention;
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, it will be appreciated that, term " longitudinal direction ", " transverse direction ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
In describing the invention, unless otherwise prescribed and limit, it should be noted that, term " installation ", " being connected ", " connection " should be interpreted broadly, such as, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be directly be connected, also indirectly can be connected by intermediary, for the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.
The invention provides a kind of weight-lifting equipment method of controlling security, its key is, comprises the steps:
Step 1, weight-lifting equipment assembly carries out initialization, and described weight-lifting equipment component signals and PLC are carried out handshake communication, obtains the initial information of described weight-lifting equipment assembly;
Step 2, when the prestored information in the initial information and PLC of described weight-lifting equipment assembly is inconsistent, proofreads the real work position of described weight-lifting equipment assembly again;
Step 3, after again having proofreaded, carries out safety inspection to crane facility assembly, obtains and carry 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 the scope of span error delta S=[3+0.25 (S-10)] mm and judge whether within range of safety operation, if, shown by read out instrument and detect data, and detection data are stored into memory device, if not, then report to the police.
Described weight-lifting equipment method of controlling security, preferably, described step 3 comprises:
Step 3-A1, carries out safety verification to the rail of crane facility assembly, checks whether rail service direction exists obstacle, to measure around crane facility assembly whether live wire or other hinder object moving;
By upper and lower, left and right directions, step 3-A2, to the clean conditions of track surface inspection track, checks whether track all has 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 the scope of span error delta S=[3+0.25 (S-10)] mm, if not in this scope, reported to the police;
Step 3-A4, checks to the track tread gradient of track, judge 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, detects track and hinders the danger whether having distortion into device, damage, come off; Time with bolts, it is loosening whether bolt has, and when employing is welded to connect, whether weld seam has crackle;
After step 3-A1 to 3-A5 detection is finished, if not abnormal, by PLC, the miscellaneous part in described crane facility assembly is checked.
3, weight-lifting equipment method of controlling security according to claim 1, is characterized in that, described step 3 also comprises:
Step 3-B1, crane facility assembly wheel crane span structure is detected, as crane facility assembly wheel crane span structure distance S≤10m, during its contact point height tolerance Δ hr≤5.5mm, be then normal, if not in this scope, perform S>10m, its contact point height tolerance Δ hr≤[5.5+0.1 (S-10)] mm, if not in this scope, then reported to the police;
Whether step 3-B2, judges the cornerwise difference of crane facility assembly wheel crane span structure, be Δ S≤5mm, otherwise reports to the police;
Step 3-B3, when judging crane facility assembly wheel crane span structure distance S≤10m, during its span deviation delta S=± 5.5mm, be then normal, if not in this scope, when performing S>10m, its span deviation delta S=± 5.5+0.1 (s-10) mm; Maximumly be no more than ± 15mm.
Described weight-lifting equipment method of controlling security, preferably, described step 3 also comprises:
Step 3-C1, judges the girder of crane facility assembly wheel crane span structure and the safety factor of end carriage, detects connection between girder and carriage weld seam and detects tie bolt;
Step 3-C2, judges whether the camber of crane facility assembly wheel crane span structure is within the scope of vertex crane span structure portion S/10, and arch angle value Δ F >=0.7S/1000, if not within the scope of this, then 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, is then normal, otherwise reports to the police;
Step 3-C4, judges the end carriage cardinal distance deviate of crane facility assembly wheel crane span structure, as cardinal distance deviate e≤3m, then and Δ e=± 4mm; As cardinal distance deviate e>3m, Δ e=± 1.25e (mm), otherwise report to the police;
Step 3-C5, judges whether the trolley travelling rail pressing plate of crane facility assembly wheel crane span structure occurs slight crack or loosened screw, if there is slight crack or loosened screw, then reports to the police, otherwise performs 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 size 10%, then reports to the police;
Step 3-C7, judges the dolly span value of crane facility assembly wheel crane span structure, the end Δ S=± 2mm of central rail or half inclined beam-and-rail; S≤19.5m, then the middle part Δ S=+1 ~ 5mm of rail or half inclined beam-and-rail in; The end S>19.5m of central rail or half inclined beam-and-rail, then the middle part Δ S=+1 ~ 7mm of rail or half inclined beam-and-rail in, otherwise report to the police;
Step 3-C8, as the dolly span S≤2m of crane facility assembly wheel crane span structure, then same cross section difference of height A≤5.3mm; As S>2m, A≤2S (mm); And same cross section difference of height maxim≤8mm, otherwise report to the police.
Described weight-lifting equipment method of controlling security, preferably, described step 3 also comprises:
Step 3-D1, judges that whether the drg of crane facility assembly wheel crane span structure is working properly, as mal then performs next step;
Step 3-D2, whether the abrasion loss of the brake rim riveted joint or assembly type brake rim that detect the drg of crane facility assembly wheel crane span structure reaches 50% of liner original thickness, if more than 50%, reports to the police; Whether the abrasion loss detecting the clamp-type brake liner of the band steel backing of described drg reaches 2/3 of liner original thickness, if more than 2/3, reports to the police; The clamp-type brake pad surfaces detecting described riveted joint or assembly type brake rim or band steel backing there is charing or peel off whether area reaches liner area 30%, if more than 30%, report to the police;
Step 3-D3, judges the parameter and standard of brake wheel in the coupler of crane facility assembly wheel crane span structure, when the wearing and tearing of brake wheel brake surface thickness reach 50% of original thickness, then reports to the police, when the wheel face ruggedness of brake wheel reaches 1.5mm, then reports to the police;
Step 3-D4, judges whether the work suspension hook of crane facility assembly wheel crane span structure occurs slight crack, when work suspension hook mouth of hook opening size exceeds leading dimensions 10%, then reports to the police; When the abrasion loss of work suspension hook exceedes 5% warnings of leading dimensions, when there is distortion at the dangerous section of the suspension hook that works and hook neck place, or after the bending spring of lateral deformation is less than plate 10 times, then report to the police;
Step 3-D5, judges that the pulley race irregular wear of the work suspension hook of crane facility assembly wheel crane span structure reaches 3mm, then reports to the police; When the pulley race wall thickness wearing and tearing of work suspension hook exceed 20% of origianl wall thickness, then report to the police; When making work lifting hook pulley race base diameter reduction exceed 50% of wirerope diameter because wearing and tearing, then report to the police;
Described weight-lifting equipment method of controlling security, preferably, described step 3 also comprises:
Step 3-E1, detects the security parameter of the main wheel of crane facility assembly wheel crane span structure, when the flange thnickness abrasion of wheel surface wearing and tearing exceedes 50% of original thickness, then report to the police, when main wheel rim flexural deformation exceedes 20% of original thickness, then report to the police, when main wheel tread thickness wearing and tearing exceed 15% of original thickness, then report to the police, when main wheel running velocity is lower than 50m/min, when circularity is more than 1mm, and when main wheel running velocity is higher than 50m/min, when circularity is more than 0.1mm, then report to the police;
Step 3-E2, whether the mode of operation detecting the electromagnetic contactor in crane facility assembly is normal, carries out traversal inspection to the contact of electromagnetic contactor, if action is insensitive, contact is not tight, then report to the police;
Step 3-E3, detect the crane track of crane facility assembly, and on crane facility, the grounding resistance of any point all must not be greater than 4 Ω; Be greater than 4 Ω then to report to the police; Work rated voltage is not more than 500V, and electric wiring insulation resistance over the ground, is not less than 1M Ω, is not less than 0.5M Ω in wet environment, otherwise reports to the police.
Described weight-lifting equipment assembly comprises: track, cart, dolly, girder, end carriage, the cantilever that hoists, rail clamping device, cable drum, emergency stop switch, anemoscope, read out instrument
1, the coder by being arranged on lifting mechanism measures the real-time lifting altitude of lifting mechanism, accumulative period of service, real time execution time, accumulative braking number of times, accumulative range ability, accumulative spacing number of times, real time execution direction etc. through PLC processing data.
2, the load transducer by being arranged on lifting mechanism is measured lifting mechanism through PLC processing data and is played liter weight, accumulative overload number of times (being occurred by report form) etc. in real time.
3, by being arranged on the limit switch of stopper mechanism, monitoring brake operation state.
4, real-time wind speed is monitored for door machine by air velocity transducer, by rail clamping device and anchoring device to hoisting crane real-time guard when wind speed is excessive; Carry out operation by cable drum working signal to large mechanism of car to control, prevent from breaking cable; By correcting coding device, when traveling mechanism of the larger traveller two motor runs inconsistent, realize automatic or manual correction.
5, the coder by being arranged on large trolley body measures the real time execution position of large trolley body, accumulative period of service, accumulative braking number of times, accumulative range ability, real time execution direction etc. through PLC process.
6, the limit switch by being arranged on large trolley body measures the spacing of large trolley body and accumulative spacing number of times through PLC process.
7,1 ~ 4 content can show by safety monitoring system on the touchscreen.If old hoisting crane increases this system, input and output point can be connected on the protection and monitoring that the existing control loop of hoisting crane can realize to hoisting crane.
8, by the actual position of screen system Real Time Observation suspension centre, also can Real Time Observation large vehicle walking region for door machine.
9, system storage data message or graphicinformation comprise numbering, the time and date of data or image, and the sampling period is less than 100ms.Have independently ups power, when after hoist power-cut, system energy continuous firing, transfers in continuous working and goes out data, and elevator machinery data integrity is preserved.Operating personal was pointed out to back up preservation in advance before the storage life that system can reach setting in memory capacity.The storage life of data is no less than 30 working days, and screen is no less than 72 hours storage life.
10, Operation system setting authority, by USB or Ethernet interface by data and backup image.
11, for the setting of parameter: if increase this equipment for old hoisting crane, as long as this equipment is arranged on hoisting crane, the actual rated load weight of corresponding hoisting crane, greatly dolly wheel diameter, drum diameter, size garage journey can directly be inputted by touch-screen, then each for hoisting crane mechanism are run to initial point and carry out zero-bit and verify; New hoisting crane is completed according to hoisting crane optimum configurations before dispatching from the factory, only needs to verify at the scene.
Beneficial effect of the present invention is:
1, all hoisting crane operational factors and state centralized displaying, operator control lifting process at any time.
2, audible and visual alarm prompting, real-time reminding operator lifts by crane every exception of process and needs Maintenance Significant Items.
3, data recording function, is convenient to the analysis after fault.
4, the seeding data recording of 30 days, 72h screen image record, adds up the work capacity of every platform hoisting crane and the work capacity of each operator, to formulate more reasonably operation plan.
5, the alarm record of 30 days, the operating process of standard operation person.
6, system ensemble is added up provides accurate information scientifically to safeguard in time equipment to user, overhauls on time.
In the description of this specification sheets, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (6)
1. a weight-lifting equipment method of controlling security, is characterized in that, comprises the steps:
Step 1, weight-lifting equipment assembly carries out initialization, and described weight-lifting equipment component signals and PLC are carried out handshake communication, obtains the initial information of described weight-lifting equipment assembly;
Step 2, when the prestored information in the initial information and PLC of described weight-lifting equipment assembly is inconsistent, proofreads the real work position of described weight-lifting equipment assembly again;
Step 3, after again having proofreaded, carries out safety inspection to crane facility assembly, obtains and carry 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 the scope of span error delta S=[3+0.25 (S-10)] mm and judge whether within range of safety operation, if, shown by read out instrument and detect data, and detection data are stored into memory device, if not, then report to the police.
2. weight-lifting equipment method of controlling security according to claim 1, is characterized in that, described step 3 comprises:
Step 3-A1, carries out safety verification to the rail of crane facility assembly, checks whether rail service direction exists obstacle, to measure around crane facility assembly whether live wire or other hinder object moving;
By upper and lower, left and right directions, step 3-A2, to the clean conditions of track surface inspection track, checks whether track all has 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 the scope of span error delta S=[3+0.25 (S-10)] mm, if not in this scope, reported to the police;
Step 3-A4, checks to the track tread gradient of track, judge 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, detects track and hinders the danger whether having distortion into device, damage, come off; Time with bolts, it is loosening whether bolt has, and when employing is welded to connect, whether weld seam has crackle;
After step 3-A1 to 3-A5 detection is finished, if not abnormal, by PLC, the miscellaneous part in described crane facility assembly is checked.
3. weight-lifting equipment method of controlling security according to claim 1, is characterized in that, described step 3 also comprises:
Step 3-B1, crane facility assembly wheel crane span structure is detected, as crane facility assembly wheel crane span structure distance S≤10m, during its contact point height tolerance Δ hr≤5.5mm, be then normal, if not in this scope, perform S>10m, its contact point height tolerance Δ hr≤[5.5+0.1 (S-10)] mm, if not in this scope, then reported to the police;
Whether step 3-B2, judges the cornerwise difference of crane facility assembly wheel crane span structure, be Δ S≤5mm, otherwise reports to the police;
Step 3-B3, when judging crane facility assembly wheel crane span structure distance S≤10m, during its span deviation delta S=± 5.5mm, be then normal, if not in this scope, when performing S>10m, its span deviation delta S=± 5.5+0.1 (s-10) mm; Maximumly be no more than ± 15mm.
4. weight-lifting equipment method of controlling security according to claim 1, is characterized in that, described step 3 also comprises:
Step 3-C1, judges the girder of crane facility assembly wheel crane span structure and the safety factor of end carriage, detects connection between girder and carriage weld seam and detects tie bolt;
Step 3-C2, judges whether the camber of crane facility assembly wheel crane span structure is within the scope of vertex crane span structure portion S/10, and arch angle value Δ F >=0.7S/1000, if not within the scope of this, then 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, is then normal, otherwise reports to the police;
Step 3-C4, judges the end carriage cardinal distance deviate of crane facility assembly wheel crane span structure, as cardinal distance deviate e≤3m, then and Δ e=± 4mm; As cardinal distance deviate e>3m, Δ e=± 1.25e (mm), otherwise report to the police;
Step 3-C5, judges whether the trolley travelling rail pressing plate of crane facility assembly wheel crane span structure occurs slight crack or loosened screw, if there is slight crack or loosened screw, then reports to the police, otherwise performs 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 size 10%, then reports to the police;
Step 3-C7, judges the dolly span value of crane facility assembly wheel crane span structure, the end Δ S=± 2mm of central rail or half inclined beam-and-rail; S≤19.5m, then the middle part Δ S=+1 ~ 5mm of rail or half inclined beam-and-rail in; The end S>19.5m of central rail or half inclined beam-and-rail, then the middle part Δ S=+1 ~ 7mm of rail or half inclined beam-and-rail in, otherwise report to the police;
Step 3-C8, as the dolly span S≤2m of crane facility assembly wheel crane span structure, then same cross section difference of height A≤5.3mm; As S>2m, A≤2S (mm); And same cross section difference of height maxim≤8mm, otherwise report to the police.
5. weight-lifting equipment method of controlling security according to claim 1, is characterized in that, described step 3 also comprises:
Step 3-D1, judges that whether the drg of crane facility assembly wheel crane span structure is working properly, as mal then performs next step;
Step 3-D2, whether the abrasion loss of the brake rim riveted joint or assembly type brake rim that detect the drg of crane facility assembly wheel crane span structure reaches 50% of liner original thickness, if more than 50%, reports to the police; Whether the abrasion loss detecting the clamp-type brake liner of the band steel backing of described drg reaches 2/3 of liner original thickness, if more than 2/3, reports to the police; The clamp-type brake pad surfaces detecting described riveted joint or assembly type brake rim or band steel backing there is charing or peel off whether area reaches liner area 30%, if more than 30%, report to the police;
Step 3-D3, judges the parameter and standard of brake wheel in the coupler of crane facility assembly wheel crane span structure, when the wearing and tearing of brake wheel brake surface thickness reach 50% of original thickness, then reports to the police, when the wheel face ruggedness of brake wheel reaches 1.5mm, then reports to the police;
Step 3-D4, judges whether the work suspension hook of crane facility assembly wheel crane span structure occurs slight crack, when work suspension hook mouth of hook opening size exceeds leading dimensions 10%, then reports to the police; When the abrasion loss of work suspension hook exceedes 5% warnings of leading dimensions, when there is distortion at the dangerous section of the suspension hook that works and hook neck place, or after the bending spring of lateral deformation is less than plate 10 times, then report to the police;
Step 3-D5, judges that the pulley race irregular wear of the work suspension hook of crane facility assembly wheel crane span structure reaches 3mm, then reports to the police; When the pulley race wall thickness wearing and tearing of work suspension hook exceed 20% of origianl wall thickness, then report to the police; When making work lifting hook pulley race base diameter reduction exceed 50% of wirerope diameter because wearing and tearing, then report to the police.
6. weight-lifting equipment method of controlling security according to claim 1, is characterized in that, described step 3 also comprises:
Step 3-E1, detects the security parameter of the main wheel of crane facility assembly wheel crane span structure, when the flange thnickness abrasion of wheel surface wearing and tearing exceedes 50% of original thickness, then report to the police, when main wheel rim flexural deformation exceedes 20% of original thickness, then report to the police, when main wheel tread thickness wearing and tearing exceed 15% of original thickness, then report to the police, when main wheel running velocity is lower than 50m/min, when circularity is more than 1mm, and when main wheel running velocity is higher than 50m/min, when circularity is more than 0.1mm, then report to the police;
Step 3-E2, whether the mode of operation detecting the electromagnetic contactor in crane facility assembly is normal, carries out traversal inspection to the contact of electromagnetic contactor, if action is insensitive, contact is not tight, then report to the police;
Step 3-E3, detect the crane track of crane facility assembly, and on crane facility, the grounding resistance of any point all must not be greater than 4 Ω; Be greater than 4 Ω then to report to the police; Work rated voltage is not more than 500V, and electric wiring insulation resistance over the ground, is not less than 0.8M Ω, is not less than 0.4M Ω in wet environment, otherwise reports to the police.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106516983A (en) * | 2016-12-15 | 2017-03-22 | 湖南千盟工业智能系统股份有限公司 | Overhead travelling crane hoisted object intelligent identification method and system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101210810A (en) * | 2006-12-28 | 2008-07-02 | 上海宝钢工业检测公司 | Hoist-transportating machine rail span, linearity automated detection method |
| 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 |
| CN201222192Y (en) * | 2008-05-09 | 2009-04-15 | 大连海事大学 | Tower crane automatic safety monitoring system based on WLAN |
| CN103274303A (en) * | 2013-06-19 | 2013-09-04 | 常州市常欣电子衡器有限公司 | Control method for hoisting machinery safety monitoring and management system |
-
2015
- 2015-03-24 CN CN201510130128.4A patent/CN104692256B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101210810A (en) * | 2006-12-28 | 2008-07-02 | 上海宝钢工业检测公司 | Hoist-transportating machine rail span, linearity automated detection method |
| 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 |
| CN201222192Y (en) * | 2008-05-09 | 2009-04-15 | 大连海事大学 | Tower crane automatic safety monitoring system based on WLAN |
| CN103274303A (en) * | 2013-06-19 | 2013-09-04 | 常州市常欣电子衡器有限公司 | Control method for hoisting machinery safety monitoring and management system |
Non-Patent Citations (2)
| Title |
|---|
| 王书平: "抓斗、电葫芦、吊钩桥式起重机维护保养", 《HTTP://WWW.DOCIN.COM/P-506317683.HTML》 * |
| 百度文库: "起重机项目培训", 《HTTP://WENKU.BAIDU.COM/LINK?URL=MES7JLIUVBU-DHYO9OOLSHVZJREUV62JDXHY3ED08NP_A-7ZFNIWYSH4UZ_NORCR0DHU08VUIF2LBVQDXBZL3SWEO7ASZ56IGJTGC8WR0NM》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106516983A (en) * | 2016-12-15 | 2017-03-22 | 湖南千盟工业智能系统股份有限公司 | Overhead travelling crane hoisted object intelligent identification method and system |
| CN106516983B (en) * | 2016-12-15 | 2020-08-28 | 湖南千盟工业智能系统股份有限公司 | Intelligent identification method and system for overhead travelling crane hanging object |
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