CN104495622B - A kind of wind load control system, method, device and crane gear - Google Patents

A kind of wind load control system, method, device and crane gear Download PDF

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Publication number
CN104495622B
CN104495622B CN201410763452.5A CN201410763452A CN104495622B CN 104495622 B CN104495622 B CN 104495622B CN 201410763452 A CN201410763452 A CN 201410763452A CN 104495622 B CN104495622 B CN 104495622B
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China
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current
crane gear
described crane
wind load
arm support
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CN104495622A (en
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刘小华
尹莉
王冲
钟懿
任会礼
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Zoomlion Heavy Industry Science and Technology Co Ltd
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Zoomlion Heavy Industry Science and Technology Co Ltd
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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
    • B66C13/16—Applications of indicating, registering, or weighing devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/08—Electrical assemblies or electrical control devices for cranes, winches, capstans or electrical hoists

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

The invention discloses a kind of wind load control system, method, device and crane gear, the current arm support attitude of crane gear can be determined according to the jib combined information at the current arm support elevation angle of crane gear and crane gear, and combine current arm support head wind speed, current lift hook position and current lift heavy calculate the current wind load of crane gear, and by the maximum wind load that can bear under current wind load and current arm support attitude being compared to determine, crane gear can safety work, thus can reach, according to different jib attitudes, the wind load of crane gear is carried out quantitative analysis, to improve accuracy and the safety of the hoist controlling under wind load effect, and then reach expand the job area of crane gear and improve the rate of attendance of crane gear, the i.e. purpose of utilization rate.Further, owing to the impact on wind load of each factors such as current lift heavy can be considered, thus relative to prior art only considering, this factor of wind speed, for the impact of wind load, further increases the accuracy of hoist controlling.

Description

A kind of wind load control system, method, device and crane gear
Technical field
The present invention relates to crane gear safety control technology field, particularly relate to a kind of wind load control system, side Method, device and crane gear.
Background technology
Crawler crane is as a kind of job that requires special skills machinery, owing to the combination of its jib is many, lift heavy amount big, shifting The features such as dynamic property is strong, are widely used in the field such as nuclear power, wind-powered electricity generation.In above-mentioned field, lifting operation is basic Out of doors, the uncertainty of environment has the biggest shadow to the safety of lifting operation, the progress of construction operation Ringing, on this basis, wind load obtains at crane safety control field as a environmental factors main To paying close attention to widely.
Specifically, at present, in order to monitor the wind load impact on crane job, it is ensured that crane job safety While expand the job area of crane, industry mainly uses by installing wind speed at crane arm support head The mode of instrument, monitors wind speed size in real time, and carries out with the maximum wind velocity of crane structure design institute foundation Can contrast, determine carry out lifting operation.
The most i.e. as a example by the existing wind load control system of the crawler crane shown in Fig. 1, to existing wind load The operation principle of control program is briefly described.Wherein, described wind load control system mainly can include installing Anemobiagraph 11 and control display floater 12 (being contained within limiter of moment) at crane arm support head. Its operation principle is: anemobiagraph 11 carries out the measurement of wind speed, and air speed data measurement obtained is sent to institute State control display floater 12, by described control display floater 12 by the wind speed obtained when pre-test and according to lifting The critical wind velocity set by structure design of machine compares, however, it is determined that the wind speed obtained when pre-test is less than setting Fixed critical wind velocity, then can determine that lifting lifting can proceed, and can carry out difference by the size of wind speed The early warning of degree；Otherwise, then can limit crane job, and carry out security alarm, to point out operation dangerous And prevent the generation of lifting operation accident.
It is to say, in existing wind load control program, be by arrange a fixing wind speed reference value, And whether the mode that the jib head wind speed it obtained with anemobiagraph measurement compares is to judge crane Lifting operation can be carried out, the maximum that can bear due to different jib combinations or different jib attitudes Wind speed is the most different, thus results in judgment mode the most general, i.e. the lifting operation of crane is only capable of into Row judges qualitatively so that judged result is inaccurate.It addition, in existing wind load control program, by In actually having taken into consideration only the impact on wind load of this factor of wind speed, do not consider other data of crane (such as current lift heavy etc.) impact on wind load, thus further increase the inaccuracy controlling result.
Therefore, a kind of control program of wind load more accurately of offer is needed badly to monitor wind load to crane job Impact, to reach expand the job area of crane while ensureing crane job safety and improve The purpose of the utilization rate of crane.
Summary of the invention
Embodiments provide a kind of wind load control system, method, device and crane gear, in order to solve Certainly the control mode of existing wind load control program the most generally causes controlling the problem that result is inaccurate.
Embodiments provide a kind of wind load control system, including:
Wind speed measuring device, for measuring the current arm support head wind speed of crane gear；
Lift hook position measurement apparatus, for measuring the current lift hook position of crane gear；
Jib elevation angle measuring device, for measuring the current arm support elevation angle of crane gear；
Lift heavy measurement apparatus, for measuring the current lift heavy of crane gear；
Wind load controls device, for the current arm support elevation angle according to described crane gear and described crane gear Jib combined information, determine the current arm support attitude of described crane gear, and according to described crane gear Current arm support attitude, the current arm support head wind speed of described crane gear, the current suspension hook of described crane gear The current lift heavy of position and described crane gear calculates the current wind load of described crane gear, and will calculate To current wind load and the current arm support attitude of the described crane gear pre-set under the maximum that can bear Wind load compares, however, it is determined that calculated current wind load can bear less than under current arm support attitude Big wind load, it is determined that described crane gear can safety work, otherwise, it is determined that described crane gear cannot Safety work.
Further, the embodiment of the present invention additionally provides a kind of crane gear, and described crane gear includes this Wind load control system described in bright embodiment.
Further, the embodiment of the present invention additionally provides a kind of wind load control method, including:
Obtain the current arm support head wind speed of crane gear, current lift hook position, the current arm support elevation angle and work as Front lift heavy；
The current arm support elevation angle according to the described crane gear got and the jib group of described crane gear Conjunction information, determines the current arm support attitude of described crane gear, and according to the described crane gear got Current arm support attitude, the current arm support head wind speed of described crane gear, the current suspension hook of described crane gear The current lift heavy of position and described crane gear calculates the current wind load of described crane gear, and will calculate To current wind load and the current arm support attitude of the described crane gear pre-set under the maximum that can bear Wind load compares, however, it is determined that calculated current wind load can bear less than under current arm support attitude Big wind load, it is determined that described crane gear can safety work, otherwise, it is determined that described crane gear cannot Safety work.
Further, the embodiment of the present invention additionally provides a kind of wind load and controls device, including:
Acquisition module, for obtaining the current arm support head wind speed of crane gear, current lift hook position, current The jib elevation angle and current lift heavy；
Processing module, the current arm support elevation angle of the described crane gear for getting according to described acquisition module And the jib combined information of described crane gear, determine the current arm support attitude of described crane gear, and root The current arm support attitude of described crane gear got according to described acquisition module, described crane gear current The current lift heavy meter of jib head wind speed, the current lift hook position of described crane gear and described crane gear Calculate the current wind load of described crane gear, and by calculated current wind load and the described lifting pre-set The maximum wind load that can bear under the current arm support attitude of equipment compares, however, it is determined that calculated currently Wind load is less than the maximum wind load that can bear under current arm support attitude, it is determined that described crane gear can safety Operation, otherwise, it is determined that described crane gear cannot safety work.
The present invention has the beneficial effect that:
Embodiments provide a kind of wind load control system, method, device and crane gear, at this In technical scheme described in bright embodiment, working as of crane gear can be determined according to the current arm support elevation angle of crane gear Front jib attitude, and combine current arm support head wind speed, the current lift hook position of crane gear and currently hang The current wind load of re-computation crane gear, and by by under calculated current wind load and current arm support attitude The maximum wind load that can bear be compared to determine crane gear can safety work, thus relative to existing Described in technology by arranging a fixing wind speed reference value the arm it obtained with anemobiagraph measurement The mode that frame head wind speed compares to judge whether crane can carry out the mode of lifting operation and compare, Can reach according to different jib attitudes, the wind load of crane gear is carried out quantitative analysis, to improve wind load work The accuracy of the hoist controlling under with and safety and then reach expand the job area of crane gear and And improve the purpose of the rate of attendance (i.e. utilization rate) of crane gear.Further, since in embodiment of the present invention institute State in technical scheme, it is possible to consider the current arm support elevation angle of crane gear, current arm support head wind speed, Each factor impacts on wind load such as current lift hook position and current lift heavy, thus relative to institute in prior art This factor of wind speed that taken into consideration only stated, for the impact of wind load, can further improve the standard of hoist controlling Really property.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, institute in embodiment being described below The accompanying drawing used is needed to briefly introduce, it should be apparent that, the accompanying drawing in describing below is only the present invention's Some embodiments, from the point of view of those of ordinary skill in the art, on the premise of not paying creative work, Other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 show the structural representation of existing wind load control system；
Fig. 2 show the structural representation of wind load control system described in the embodiment of the present invention one；
Fig. 3 show the schematic flow sheet of wind load control method described in the embodiment of the present invention two；
Fig. 4 show wind load described in the embodiment of the present invention three and controls the structural representation of device.
Detailed description of the invention
In order to make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to this Bright it is described in further detail, it is clear that described embodiment is only a part of embodiment of the present invention, Rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing Go out all other embodiments obtained under creative work premise, broadly fall into the scope of protection of the invention.
Embodiment one:
The embodiment of the present invention one provides a kind of wind load control system, as in figure 2 it is shown, it is implemented for the present invention The structural representation of wind load control system described in example one, described wind load control system comprises the steps that
Wind speed measuring device 21, can be used for measuring the current arm support head wind speed of crane gear, i.e. measures lifting The current wind speed of the jib head of equipment；
Lift hook position measurement apparatus 22, can be used for measuring the current lift hook position of crane gear, i.e. measures lifting The current location of the suspension hook of equipment, wherein, the current location of the suspension hook of crane gear typically refers to crane gear The height of suspension hook distance crane gear place horizontal plane；
Jib elevation angle measuring device 23, can be used for measuring the current arm support elevation angle of crane gear, i.e. measures lifting The current elevation angle of the jib of equipment；
Lift heavy measurement apparatus 24, can be used for measuring the current lift heavy of crane gear, i.e. measures crane gear current The weight of institute's handling article；
Wind load controls device 25, can be used for the current arm support elevation angle according to described crane gear and described lifting The jib combined information of equipment, determines the current arm support attitude of described crane gear, and resets according to described Standby current arm support attitude, the current arm support head wind speed of described crane gear, described crane gear current The current lift heavy of lift hook position and described crane gear calculates the current wind load of described crane gear, and will meter Can bear under the current wind load obtained and the current arm support attitude of the described crane gear pre-set Maximum wind load compares, however, it is determined that calculated current wind load can bear less than under current arm support attitude Maximum wind load, then can determine that described crane gear can safety work, otherwise (i.e. determine calculated Current wind load is not less than the maximum wind load that can bear under current arm support attitude), then can determine that described rising is reseted Standby cannot safety work.
Wherein, the maximum wind load that can bear under the current arm support attitude of described crane gear can be according to institute State the jib rollover stability under the current arm support attitude of crane gear and jib structure intensity comprehensively obtains Arrive.Wherein, the jib rollover stability under the current arm support attitude of described crane gear refers to work as forearm The resistance to capsizing of the jib of described crane gear under frame attitude, this is not repeated by the embodiment of the present invention.
It is further to note that when determining that calculated current wind load is not less than institute under current arm support attitude During the maximum wind load that can bear, described wind load controls device 25 can be by declining suspension hook so that lift heavy is liftoff more Closely or abandon lifting and after wind speed diminishes, restart the modes such as operation lifting operation is controlled, this This is not limited in any way by inventive embodiments.Further, when determining that calculated current wind load is not less than current During the maximum wind load that can bear under jib attitude, described wind load controls device 25 also can carry out security alarm, To point out operation dangerous and to prevent the generation of lifting operation accident.
Alternatively, in embodiment of the present invention, described wind load controls device 25 and is particularly used in basis The current arm support attitude of described crane gear, the current arm support head wind speed of described crane gear, described lifting The current lift hook position of equipment and the current lift heavy of described crane gear calculate and act on described crane gear On current operating state wind load, and act on the wind load on described crane gear current institute handling article, And by the calculated current operating state wind load acted on described crane gear and act on described Wind load sum on crane gear current institute handling article is as the current wind load of described crane gear.
It is to say, when calculating the current wind load of described crane gear, can consider and include described lifting Equipment and described crane gear institute handling article in the interior whole wind load situation hanging loading system, thus up to Accurately analyze to the wind load of crane gear, with improve the accuracy of the hoist controlling under wind load effect with And the purpose of safety.
Further, described wind load control device 25 is particularly used in employing the first formula calculating and acts on institute State the current operating state wind load on crane gear, and, use the second formula to calculate and act on described lifting Wind load on equipment current institute handling article；
Wherein, described first formula is Pw=CPA, described PwCurrent for act on described crane gear Duty wind load, C be set wind factor (and its value can be set according to practical situation, or Person, specifically refers to hoist design specification, depending on the related data in GB3811-83 etc.), P is Current operating state blast, A is that described crane gear (or each component of described crane gear) is perpendicular to wind To entity front face area (its value can be set according to practical situation), and P=0.625V0 2, V0For The current arm support head wind speed of the described crane gear that anemobiagraph measurement obtains (it should be noted that in order to fill Divide the safety of consideration crane gear operation, in embodiment of the present invention, the wind that anemobiagraph can be recorded Fast acting on along the worst horizontal direction of crane gear as wind load includes described crane gear and institute State the Lift-on/Lift-off System of crane gear institute handling article)；
Described second formula is PwQ=1.2PhAQ, described PwQFor acting on the handling of described crane gear current institute Wind load on article, PhAccording to height and the described crane gear of described crane gear current institute handling article Current arm support height of head between ratio current operating state blast is converted after obtained by wind Pressure, AQThe entity front face area of wind direction, wherein, institute it is perpendicular to for described crane gear current institute handling article The height stating crane gear current institute handling article can be the current lift hook position according to described crane gear Determined by, the current arm support height of head of described crane gear can be current according to described crane gear Determined by the current arm support elevation angle of jib attitude or described crane gear, the handling of described crane gear current institute It can be the current lift heavy according to described crane gear or the external world that article are perpendicular to the entity front face area of wind direction (such as hoisting personnel etc.) according to as described in the state of crane gear current institute handling article (such as institute's handling article Quality, shape or volume etc.) determined by the entity front face area that inputted.
It is to say, in embodiment of the present invention, determining described crane gear current institute handling article When being perpendicular to the entity front face area of wind direction, the mode with reference to respective standard can be used to reset according to described The weight (or quality) of standby current institute handling article estimation described crane gear current institute handling article automatically hang down Straight in the entity front face area of wind direction, or, also can use and control to arrange phase on device 25 in described wind load The outer input interface answered, to work as according to described crane gear by this outer input interface reception hoisting personnel The mode of the front face area that the practical situation of front institute handling article is inputted, estimates that described crane gear is current Institute's handling article are perpendicular to the entity front face area of wind direction, and this is not limited in any way by the embodiment of the present invention.
Specifically, according to the incidence relation (specifically referring to the 3rd formula) between wind speed and height, described Ph May be used to down the 4th formula represent:
Ph=0.625V2=0.625 [V0(H/H0)n]2=0.625V0 2(H/H0)2n=P (H/H0)2n；
Wherein, V0For the current arm support head wind speed of described crane gear, H0Working as described crane gear Front jib height of head；V is that the height by described crane gear current institute handling article is to jib head wind speed Carry out converting obtained wind speed, will the height of described crane gear current institute handling article see as accordingly Jib height of head time corresponding jib head wind speed；H is described crane gear current institute handling article Height, n is that (and its value can be set according to practical situation, as logical for the earth's surface coefficient of friction that sets Often may be configured as any number etc. being positioned at 0.1～0.4 interval and comprising this interval endpoint).
Wherein, above-mentioned relate to for reflecting that the 3rd formula of the incidence relation between wind speed and height can table It is shown as:
Vx=V0(Hx/H0)n, wherein, V0For the current arm support head wind speed of described crane gear, H0For institute State the current arm support height of head of crane gear, VxFor the jib head corresponding with setting jib height of head Wind speed information, HxFor setting jib height of head, n is the earth's surface coefficient of friction set.
Further, it should be noted that in embodiment of the present invention, described wind load controls device 25 Can be additionally used according to the incidence relation (specifically referring to the 3rd formula) between wind speed and height and described The current arm support height of head of crane gear and the current arm support head wind speed of described crane gear, determine described The jib of crane gear is in jib head wind speed corresponding during the different jib elevation angle, and combines corresponding jib The lift hook position of the described crane gear under the elevation angle and the current lift heavy of described crane gear, calculate and currently hang Described crane gear wind load under the different jib elevations angle under heavily, and, by currently hanging calculated Under heavily, described crane gear wind load under each jib elevation angle and the described crane gear pre-set are in phase Answer the maximum wind load that can bear under the jib attitude corresponding to the jib elevation angle to compare, determine and currently hang Safe change angle scope corresponding to the jib of described crane gear under heavily.
It is to say, owing to jib jib head when setting change angle range of motion is in different height Degree, therefore, the current arm support head under the known current arm support elevation angle or under the height of current arm support head place Under wind speed premise, by the incidence relation between the jib elevation angle and jib height of head, and wind speed with height Between incidence relation, arm head wind speed (under the i.e. different jib elevations angle) under available different change angles, And and then can according to embodiments of the present invention described in wind load calculation, obtain under same lift heavy (the most current Under lift heavy) described crane gear wind load under the different jib elevations angle, and, can be by by calculated Under current lift heavy, described crane gear wind load under each jib elevation angle rises and resets described in pre-setting The standby maximum wind load that can bear under the jib attitude corresponding to the corresponding jib elevation angle compares, and determines The safe change angle scope corresponding to jib of described crane gear under current lift heavy.
Further, it should be noted that in embodiment of the present invention, wind load controls device 25 also The maximum wind load that can be used for showing calculated current wind load to occupy under current arm support attitude and can bear The safe change angle model corresponding to jib of described crane gear under percentage size, and current lift heavy Enclose；And the percentage ratio of the maximum wind load that can bear under current arm support attitude is occupied according to the current wind load of display Under size and current lift heavy, the safe change angle scope corresponding to jib of described crane gear, controls Described crane gear runs in respective secure areas.
Further, it should be noted that wind load to control device 25 calculated except can be used for showing Current wind load occupies outside the percentage size of the maximum wind load that can bear under current arm support attitude, can also be used with In the real-time change of the jib attitude according to described crane gear, after showing this change calculated in real time Wind load under jib attitude occupies institute under the described crane gear pre-set jib attitude after this change The percentage size of the maximum wind load that can bear, this is not repeated by the embodiment of the present invention.
Further, it should be noted that in embodiment of the present invention, wind load controls device 25 also Can be used for working as the current arm support head wind speed of described crane gear and the described crane gear pre-set The maximum wind velocity that can bear under front jib attitude compares, however, it is determined that the current arm support of described crane gear Head wind speed less than the maximum wind velocity that can bear under the current arm support attitude of described crane gear, then can determine that Described crane gear can safety work, otherwise, then can determine that described crane gear cannot safety work.
It is to say, in embodiment of the present invention, similarly to the prior art, described wind load controls device Lifting operation also can be controlled accordingly by 25 merely with wind speed, but, unlike the prior art, In embodiment of the present invention, when utilizing wind speed that lifting operation is controlled accordingly, for different Jib attitude generally can set the different wind speed reference values meeting security control, to reach according to different arms Frame attitude, carries out quantitative analysis to the wind load of crane gear, to improve accuracy and the safety of hoist controlling The purpose of property.
Further, it should be noted that in embodiment of the present invention, described wind speed measuring device 21 Generally can be the anemobiagraph of the jib head being positioned at crane gear, described lift hook position measurement apparatus 22 is usual Can be to be positioned at the angular encoder at the elevator that hoists of crane gear, described jib elevation angle measuring device 23 leads to Chang Kewei is positioned at the angular transducer bottom the jib of crane gear, and described lift heavy measurement apparatus 24 generally may be used For being positioned at the limiter of moment of crane gear.That is, described wind load controls device 25 and is particularly used in from position The current arm support head wind speed of crane gear is obtained, from being positioned at the anemobiagraph of the jib head of crane gear The current lift hook position of crane gear is obtained, from being positioned at angular encoder at the elevator that hoists of crane gear The current arm support elevation angle of crane gear is obtained and from position at angular transducer bottom the jib of crane gear The current lift heavy of crane gear is obtained at limiter of moment in crane gear.
It should be noted that owing to anemobiagraph, angular encoder, angular transducer, limiter of moment etc. are logical Is often the standard configuration device in crane gear, therefore, in technical scheme described in the embodiment of the present invention, also can be On the basis of increasing any extra sensing equipment, reach to give full play to the effect of the performance of crane.
May generally reside in it is further to note that the wind load described in the embodiment of the present invention controls device 25 The position controlling display floater 12 place in existing wind load control system, i.e. after can being equivalent to improve Control display floater, this is not repeated by the embodiment of the present invention.
Further, described limiter of moment, the most described lift heavy measurement apparatus 24 generally can be positioned at described Wind load controls the integrated equipment in device 25；Certainly, it should be noted that described limiter of moment, i.e. Described lift heavy measurement apparatus 24 can be also to control the autonomous device of device 25, the present invention independent of described wind load This is not repeated by embodiment.Specifically, in fig. 2, with described limiter of moment, the most described lift heavy is surveyed Amount device 24 be positioned at described wind load control device 25 integrated equipment as a example by it is carried out schematically illustrate.
Further, based on same inventive concept, the embodiment of the present invention one additionally provides a kind of crane gear, Described crane gear can include the wind load control system described in the embodiment of the present invention one, the embodiment of the present invention pair This does not repeats.Wherein, concrete structure and the function of described wind load control system can be found in the embodiment of the present invention Associated description in one, repeats no more in place of repetition.
The embodiment of the present invention one provides a kind of wind load control system and crane gear, in the embodiment of the present invention one In described technical scheme, the current arm support appearance of crane gear can be determined according to the current arm support elevation angle of crane gear State, and combine the current arm support head wind speed of crane gear, current lift hook position and current lift heavy and calculate The current wind load of heavy equipment, and by calculated current wind load be can bear under current arm support attitude Maximum wind load be compared to determine crane gear can safety work, thus relative to institute in prior art State by arranging a fixing wind speed reference value the jib head wind it obtained with anemobiagraph measurement The mode that speed compares is to judge whether crane can carry out the mode of lifting operation and compare, and can reach root According to different jib attitudes, the wind load of crane gear is carried out quantitative analysis, to improve hanging under wind load effect The accuracy of dress control and the purpose of safety, and, due to accuracy and the safety of hoist controlling All it is greatly improved, thus on this basis, also be can reach expansion crane gear, such as crane Deng job area and improve the purpose of the rate of attendance (i.e. utilization rate) of crane gear.Further, since In technical scheme described in the embodiment of the present invention one, it is possible to consider crane gear the current arm support elevation angle, Each factor impacts on wind load such as current arm support head wind speed, current lift hook position and current lift heavy, thus Relative to this factor of wind speed that taken into consideration only described in the prior art for the impact of wind load, one can be entered Step improves the accuracy of hoist controlling.Further, owing to, in technical scheme described in the embodiment of the present invention one, dividing Yong Yu not measure the current arm support elevation angle of crane gear, current arm support head wind speed, current lift hook position and The anemobiagraph of current lift heavy etc., angular encoder, angular transducer, limiter of moment etc. have been usually to be reseted Standard configuration device in Bei, therefore, also can reach on the basis of without increasing any extra sensing equipment Give full play to the effect of the performance of crane.
Embodiment two:
Based on same inventive concept, the embodiment of the present invention two provides a kind of wind load control method, such as Fig. 3 institute Showing, it is the schematic flow sheet of wind load control method described in the embodiment of the present invention two, described wind load controlling party Method can comprise the following steps that
Step 301: obtain the current arm support head wind speed of crane gear, current lift hook position, current arm support The elevation angle and current lift heavy.
Specifically, the executive agent of each step in the embodiment of the present invention two generally can be the embodiment of the present invention one Described in wind load control device, this is not repeated by the embodiment of the present invention.
Alternatively, the acquisition current arm support head wind speed of crane gear, current lift hook position, current arm support are faced upward Angle and current lift heavy, may include that
The current arm support head wind of crane gear is obtained at the anemobiagraph of the jib head being positioned at crane gear The current suspension hook position of crane gear is obtained at speed, angular encoder at the elevator that hoists being positioned at crane gear Put, obtain at the angular transducer bottom the jib being positioned at crane gear the current arm support elevation angle of crane gear And at the limiter of moment being positioned at crane gear, obtain the current lift heavy of crane gear.
It should be noted that owing to anemobiagraph, angular encoder, angular transducer, limiter of moment etc. are logical It is often the standard configuration device in crane gear, therefore, in technical scheme described in the embodiment of the present invention, can be in nothing On the basis of need to increasing any extra sensing equipment, reach to give full play to the effect of the performance of crane.
Step 302: according to the current arm support elevation angle and the described crane gear of the described crane gear got Jib combined information, determine the current arm support attitude of described crane gear, and rise according to getting The current arm support attitude of heavy equipment, the current arm support head wind speed of described crane gear, described crane gear The current lift heavy of current lift hook position and described crane gear calculates the current wind load of described crane gear.
Alternatively, according to the current arm support attitude of the described crane gear got, described crane gear work as Front jib head wind speed, the current lift hook position of described crane gear and the current lift heavy of described crane gear Calculate the current wind load of described crane gear, may include that
Current arm support attitude according to the described crane gear got, the current arm support head of described crane gear The current lift heavy calculating effect of portion's wind speed, the current lift hook position of described crane gear and described crane gear Current operating state wind load on described crane gear, and act on the handling of described crane gear current institute Wind load on article, and by the calculated current operating state wind load acted on described crane gear with And act on wind load sum the working as described crane gear on described crane gear current institute handling article Front wind load.
It is to say, when calculating the current wind load of described crane gear, can consider and include described lifting Equipment and described crane gear institute handling article in the interior whole wind load situation hanging loading system, thus up to Accurately analyze to the wind load of crane gear, with improve the accuracy of the hoist controlling under wind load effect with And the purpose of safety.
Further, according to the current arm support attitude of the described crane gear got, described crane gear Current arm support head wind speed, the current lift hook position of described crane gear and currently hanging of described crane gear Re-computation acts on the current operating state wind load on described crane gear, and acts on described crane gear Wind load on current institute handling article, may include that
The first formula is used to calculate the current operating state wind load and employing acting on described crane gear Second formula calculates and acts on the wind load on described crane gear current institute handling article；
Wherein, described first formula is Pw=CPA, described PwCurrent for act on described crane gear Duty wind load, C be set wind factor (and its value can be set according to practical situation, or Person, specifically refers to hoist design specification, depending on the related data in GB3811-83 etc.), P is Current operating state blast, A is that described crane gear (or each component of described crane gear) is perpendicular to wind To entity front face area, and P=0.625V0 2, V0Current arm support head wind speed for described crane gear；
Described second formula is PwQ=1.2PhAQ, described PwQFor acting on the handling of described crane gear current institute Wind load on article, PhAccording to height and the described crane gear of described crane gear current institute handling article Current arm support height of head between ratio current operating state blast is converted after obtained by wind Pressure, AQThe entity front face area of wind direction, wherein, institute it is perpendicular to for described crane gear current institute handling article The height stating crane gear current institute handling article can be the current lift hook position according to described crane gear Determined by, the current arm support height of head of described crane gear can be current according to described crane gear Determined by the current arm support elevation angle of jib attitude or described crane gear, the handling of described crane gear current institute It can be the current lift heavy according to described crane gear or the external world that article are perpendicular to the entity front face area of wind direction (such as hoisting personnel etc.) according to as described in the state of crane gear current institute handling article (such as institute's handling article Quality, shape or volume etc.) determined by the entity front face area that inputted.
It is to say, in embodiment of the present invention, determining described crane gear current institute handling article When being perpendicular to the entity front face area of wind direction, the mode with reference to respective standard can be used to reset according to described The weight (or quality) of standby current institute handling article estimation described crane gear current institute handling article automatically hang down Straight in the entity front face area of wind direction, or, also can use and control to arrange corresponding outside on device in wind load Input interface, to receive hoisting personnel according to the handling of described crane gear current institute by this outer input interface The mode of the front face area that the practical situation of article is inputted, estimates described crane gear current institute handling thing Product are perpendicular to the entity front face area of wind direction, and this is not limited in any way by the embodiment of the present invention.
Specifically, according to the incidence relation (specifically referring to the 3rd formula) between wind speed and height, described Ph May be used to down the 4th formula represent:
Ph=0.625V2=0.625 [V0(H/H0)n]2=0.625V0 2(H/H0)2n=P (H/H0)2n；
Wherein, V0For the current arm support head wind speed of described crane gear, H0Working as described crane gear Front jib height of head；V is that the height by described crane gear current institute handling article is to jib head wind speed Carry out converting obtained wind speed, will the height of described crane gear current institute handling article see as accordingly Jib height of head time corresponding jib head wind speed；H is described crane gear current institute handling article Height, n is that (and its value can be set according to practical situation, as logical for the earth's surface coefficient of friction that sets Often may be configured as any number etc. being positioned at 0.1～0.4 interval and comprising this interval endpoint).
Wherein, above-mentioned relate to for reflecting that the 3rd formula of the incidence relation between wind speed and height can table It is shown as:
Vx=V0(Hx/H0)n, wherein, V0For the current arm support head wind speed of described crane gear, H0For institute State the current arm support height of head of crane gear, VxFor the jib head corresponding with setting jib height of head Wind speed information, HxFor setting jib height of head, n is the earth's surface coefficient of friction set.
Step 303: by the current arm support of calculated current wind load with the described crane gear pre-set The maximum wind load that can bear under attitude compares, however, it is determined that calculated current wind load is less than working as forearm The maximum wind load that can bear under frame attitude, it is determined that described crane gear can safety work, otherwise, then Determine that described crane gear cannot safety work.
Wherein, the maximum wind load that can bear under the current arm support attitude of described crane gear can be according to institute State the jib rollover stability under the current arm support attitude of crane gear and jib structure intensity comprehensively obtains Arrive.Wherein, the jib rollover stability under the current arm support attitude of described crane gear refers to work as forearm The resistance to capsizing of the jib of described crane gear under frame attitude, this is not repeated by the embodiment of the present invention.
It is further to note that when determining that calculated current wind load is not less than institute under current arm support attitude During the maximum wind load that can bear, described wind load controls device can be by declining suspension hook so that lift heavy is liftoff more Closely or abandon lifting and after wind speed diminishes, restart the modes such as operation lifting operation is controlled, this This is not limited in any way by inventive embodiments.Further, when determining that calculated current wind load is not less than current During the maximum wind load that can bear under jib attitude, described wind load controls device also can carry out security alarm, with Point out operation dangerous and prevent the generation of lifting operation accident.
Further, in embodiment of the present invention, described method may also include that
Current arm support height of head according to the incidence relation between wind speed and height and described crane gear With the current arm support head wind speed of described crane gear, determine that the jib of described crane gear is in different jib Jib head wind speed corresponding during the elevation angle；And
In conjunction with the lift hook position of the described crane gear under the corresponding jib elevation angle and working as of described crane gear Front lift heavy, calculates described crane gear wind load under the different jib elevations angle under current lift heavy；And,
By by described crane gear wind load under each jib elevation angle under calculated current lift heavy with Crane gear that pre-set, described can bear under the jib attitude corresponding to the corresponding jib elevation angle Strong wind carries and compares, and determines the safe variable phase angle corresponding to the jib of described crane gear under current lift heavy Degree scope.
It is to say, owing to jib jib head when setting change angle range of motion is in different height Degree, therefore, the current arm support head under the known current arm support elevation angle or under the height of current arm support head place Under wind speed premise, by the incidence relation between the jib elevation angle and jib height of head, and wind speed with height Between incidence relation, arm head wind speed (under the i.e. different jib elevations angle) under available different change angles, And and then can according to embodiments of the present invention described in wind load calculation, obtain under same lift heavy (the most current Under lift heavy) described crane gear wind load under the different jib elevations angle, and, can be by by calculated Under current lift heavy, described crane gear wind load under each jib elevation angle rises and resets described in pre-setting The standby maximum wind load that can bear under the jib attitude corresponding to the corresponding jib elevation angle compares, and determines The safe change angle scope corresponding to jib of described crane gear under current lift heavy.
Further, in embodiment of the present invention, described method may also include that
The percentage size of the maximum wind load showing current wind load to occupy under current arm support attitude to can bear, with And the safe change angle scope corresponding to jib of described crane gear under current lift heavy；And
Current wind load according to display occupies the percentage ratio of the maximum wind load that can bear under current arm support attitude Under size and current lift heavy, the safe change angle scope corresponding to jib of described crane gear, controls Described crane gear runs in respective secure areas.
Further, in embodiment of the present invention, described method may also include that
Current by the current arm support head wind speed of described crane gear and the described crane gear pre-set The maximum wind velocity that can bear under jib attitude compares；
If it is determined that the current arm support head wind speed of described crane gear is less than the current arm support of described crane gear The maximum wind velocity that can bear under attitude, it is determined that described crane gear can safety work, otherwise, the most really Fixed described crane gear cannot safety work.
It is to say, in embodiment of the present invention, similarly to the prior art, also can come merely with wind speed Lifting operation is controlled accordingly, but, unlike the prior art, in embodiment of the present invention In, when utilizing wind speed that lifting operation is controlled accordingly, generally can set for different jib attitudes The different wind speed reference values meeting security control, to reach according to different jib attitudes, to crane gear Wind load carry out quantitative analysis, the purpose of accuracy and safety to improve hoist controlling, especially to gently The Hoisting Program carrying lifting higher with terrain clearance has obvious security advantages.
The embodiment of the present invention two provides a kind of wind load control method, technical side described in the embodiment of the present invention two In case, the current arm support attitude of crane gear can be determined according to the current arm support elevation angle of crane gear, and combine The current arm support head wind speed of crane gear, current lift hook position and current lift heavy calculate working as of crane gear Front wind load, and by the maximum wind load that will can bear under calculated current wind load and current arm support attitude Be compared to determine crane gear can safety work, thus relative to described in the prior art by setting Put a fixing wind speed reference value and the jib head wind speed that itself and anemobiagraph measurement obtained compares Mode judge whether crane can carry out the mode of lifting operation and compare, and can reach according to different arms Frame attitude, carries out quantitative analysis to the wind load of crane gear, to improve the standard of the hoist controlling under wind load effect Really property and the purpose of safety, and, owing to accuracy and the safety of hoist controlling have all obtained greatly The raising of amplitude, thus on this basis, also can reach and expand the job area of crane gear and improve The purpose of the rate of attendance (i.e. utilization rate) of crane gear.Further, since in skill described in the embodiment of the present invention two In art scheme, it is possible to consider the current arm support elevation angle of crane gear, current arm support head wind speed, current Each factor impacts on wind load such as lift hook position and current lift heavy, thus relative to described in the prior art Take into consideration only this factor of wind speed for the impact of wind load, can further improve the accurate of hoist controlling Property.Further, owing to, in technical scheme described in the embodiment of the present invention two, being respectively used to measure crane gear The anemobiagraph of the current arm support elevation angle, current arm support head wind speed, current lift hook position and current lift heavy etc., Standard configuration device in the usually crane gear such as angular encoder, angular transducer, limiter of moment, therefore, Also can, on the basis of without increasing any extra sensing equipment, reach to give full play to the performance of crane Effect.
Embodiment three:
Based on same inventive concept, the embodiment of the present invention three provides a kind of wind load and controls device, such as Fig. 4 institute Showing, it is the structural representation that wind load described in the embodiment of the present invention three controls device, and described wind load controls dress Put and comprise the steps that
Acquisition module 41, can be used for obtain the current arm support head wind speed of crane gear, current lift hook position, The current arm support elevation angle and current lift heavy.Alternatively, described acquisition module 41 is particularly used in from being positioned at The current arm support head wind speed of crane gear is obtained, from being positioned at lifting at the anemobiagraph of the jib head of heavy equipment The current lift hook position of crane gear is obtained, from being positioned at lifting at angular encoder at the elevator that hoists of equipment The current arm support elevation angle of crane gear is obtained and from being positioned at angular transducer bottom the jib of equipment The current lift heavy of crane gear is obtained at limiter of moment in heavy equipment；Wherein, described limiter of moment is It is positioned at described wind load and controls the integrated equipment of device, or, for controlling the only of device independent of described wind load Erect standby.
Processing module 42, the described crane gear that can be used for getting according to described acquisition module 41 current The jib combined information of the jib elevation angle and described crane gear, determines the current arm support appearance of described crane gear State, and get according to described acquisition module the current arm support attitude of described crane gear, described reset Working as of standby current arm support head wind speed, the current lift hook position of described crane gear and described crane gear Front lift heavy calculates the current wind load of described crane gear, and by calculated current wind load with pre-set The maximum wind load that can bear under the current arm support attitude of described crane gear compares, however, it is determined that calculate To current wind load less than the maximum wind load that can bear under current arm support attitude, it is determined that described crane gear Can safety work, otherwise, it is determined that described crane gear cannot safety work.
Wherein, the maximum wind load that can bear under the current arm support attitude of described crane gear can be according to institute State the jib rollover stability under the current arm support attitude of crane gear and jib structure intensity comprehensively obtains Arrive.Wherein, the jib rollover stability under the current arm support attitude of described crane gear refers to work as forearm The resistance to capsizing of the jib of described crane gear under frame attitude, this is not repeated by the embodiment of the present invention.
Alternatively, described in described processing module 42 is particularly used in and gets according to described acquisition module 41 The current arm support attitude of crane gear, the current arm support head wind speed of described crane gear, described crane gear Current lift hook position and described crane gear current lift heavy calculate act on described crane gear Current operating state wind load, and act on the wind load on described crane gear current institute handling article, and will The calculated current operating state wind load acted on described crane gear and act on described lifting Wind load sum on equipment current institute handling article is as the current wind load of described crane gear.
It is to say, when calculating the current wind load of described crane gear, can consider and include described lifting Equipment and described crane gear institute handling article in the interior whole wind load situation hanging loading system, thus up to Accurately analyze to the wind load of crane gear, with improve the accuracy of the hoist controlling under wind load effect with And the purpose of safety.
Specifically, described processing module 42 is particularly used in employing the first formula calculating and acts on described lifting Current operating state wind load on equipment and use the second formula to calculate to act on described crane gear current Wind load on institute's handling article；
Wherein, described first formula is Pw=CPA, described PwCurrent for act on described crane gear Duty wind load, C is the wind factor set, and P is current operating state blast, and A is described lifting Equipment is perpendicular to the entity front face area of wind direction, and P=0.625V0 2, V0Current for described crane gear Jib head wind speed；
Described second formula is PwQ=1.2PhAQ, described PwQFor acting on the handling of described crane gear current institute Wind load on article, PhAccording to height and the described crane gear of described crane gear current institute handling article Current arm support height of head between ratio current operating state blast is converted after obtained by wind Pressure, AQThe entity front face area of wind direction, wherein, institute it is perpendicular to for described crane gear current institute handling article The height stating crane gear current institute handling article can be the current lift hook position according to described crane gear Determined by, the current arm support height of head of described crane gear can be current according to described crane gear Determined by the current arm support elevation angle of jib attitude or described crane gear, the handling of described crane gear current institute It can be the current lift heavy according to described crane gear or the external world that article are perpendicular to the entity front face area of wind direction (such as hoisting personnel etc.) according to as described in the state of crane gear current institute handling article (such as institute's handling article Quality, shape or volume etc.) determined by the entity front face area that inputted.
It is to say, in embodiment of the present invention, determining described crane gear current institute handling article When being perpendicular to the entity front face area of wind direction, the mode with reference to respective standard can be used to reset according to described The weight (or quality) of standby current institute handling article estimation described crane gear current institute handling article automatically hang down Straight in the entity front face area of wind direction, or, also can use and control to arrange corresponding outside on device in wind load Input interface, to receive hoisting personnel according to the handling of described crane gear current institute by this outer input interface The mode of the front face area that the practical situation of article is inputted, estimates described crane gear current institute handling thing Product are perpendicular to the entity front face area of wind direction, and this is not limited in any way by the embodiment of the present invention.
Specifically, according to the incidence relation (specifically referring to the 3rd formula) between wind speed and height, described Ph May be used to down the 4th formula represent:
Ph=0.625V2=0.625 [V0(H/H0)n]2=0.625V0 2(H/H0)2n=P (H/H0)2n；
Wherein, V0For the current arm support head wind speed of described crane gear, H0Working as described crane gear Front jib height of head；V is that the height by described crane gear current institute handling article is to jib head wind speed Carry out converting obtained wind speed, will the height of described crane gear current institute handling article see as accordingly Jib height of head time corresponding jib head wind speed；H is described crane gear current institute handling article Height, n is that (and its value can be set according to practical situation, as logical for the earth's surface coefficient of friction that sets Often may be configured as any number etc. being positioned at 0.1～0.4 interval and comprising this interval endpoint).
Wherein, above-mentioned relate to for reflecting that the 3rd formula of the incidence relation between wind speed and height can table It is shown as:
Vx=V0(Hx/H0)n, wherein, V0For the current arm support head wind speed of described crane gear, H0For institute State the current arm support height of head of crane gear, VxFor the jib head corresponding with setting jib height of head Wind speed information, HxFor setting jib height of head, n is the earth's surface coefficient of friction set.
Further, described processing module 42 can be additionally used according to the incidence relation between wind speed and height, And the current arm support head wind speed of the current arm support height of head of described crane gear and described crane gear, Determine that the jib of described crane gear is in jib head wind speed corresponding during the different jib elevation angle, and combine The lift hook position of the described crane gear under the corresponding jib elevation angle and the current lift heavy of described crane gear, meter Calculate described crane gear wind load under the different jib elevations angle under current lift heavy, and, by being calculated Current lift heavy under described crane gear wind load under each jib elevation angle and lifting that pre-set, described The maximum wind load that equipment can bear under the jib attitude corresponding to the corresponding jib elevation angle compares, and comes really Safe change angle scope corresponding to the jib of described crane gear under settled front lift heavy.
It is to say, owing to jib jib head when setting change angle range of motion is in different height Degree, therefore, the current arm support head under the known current arm support elevation angle or under the height of current arm support head place Under wind speed premise, by the incidence relation between the jib elevation angle and jib height of head, and wind speed with height Between incidence relation, arm head wind speed (under the i.e. different jib elevations angle) under available different change angles, And and then can according to embodiments of the present invention described in wind load calculation, obtain under same lift heavy (the most current Under lift heavy) described crane gear wind load under the different jib elevations angle, and, can be by by calculated Under current lift heavy, described crane gear wind load under each jib elevation angle rises and resets described in pre-setting The standby maximum wind load that can bear under the jib attitude corresponding to the corresponding jib elevation angle compares, and determines The safe change angle scope corresponding to jib of described crane gear under current lift heavy.
Further, described wind load controls device and may also include display module 43:
Described display module 43 can be used for showing current wind load to occupy under current arm support attitude and can bear The safe luffing corresponding to jib of described crane gear under the percentage size of big wind load, and current lift heavy Angular range.
Correspondingly, described processing module 42 can be additionally used in the current wind load according to the display of described display module 43 Occupy under the percentage size of the maximum wind load that can bear under current arm support attitude and current lift heavy described Safe change angle scope corresponding to the jib of crane gear, controls described crane gear in corresponding place of safety Run in territory.
Further, it should be noted that described display module 43 is calculated except can be used for showing Current wind load occupies outside the percentage size of the maximum wind load that can bear under current arm support attitude, can also be used with In the real-time change of the jib attitude according to described crane gear, after showing this change calculated in real time Wind load under jib attitude occupies institute under the described crane gear pre-set jib attitude after this change The percentage size of the maximum wind load that can bear, this is not repeated by the embodiment of the present invention.
Further, in embodiment of the present invention, described processing module 42 can be additionally used in described The current arm support head wind speed of heavy equipment and institute under the current arm support attitude of the described crane gear pre-set The maximum wind velocity that can bear compares, however, it is determined that the current arm support head wind speed of described crane gear is less than institute State the maximum wind velocity that can bear under the current arm support attitude of crane gear, it is determined that described crane gear can Safety work, otherwise, it is determined that described crane gear cannot safety work.
It is to say, in embodiment of the present invention, similarly to the prior art, described wind load controls device Also merely with wind speed, lifting operation can be controlled accordingly, but, unlike the prior art, In embodiment of the present invention, when utilizing wind speed that lifting operation is controlled accordingly, for different arms Frame attitude generally can set the different wind speed reference values meeting security control, to reach according to different jibs Attitude, carries out quantitative analysis to the wind load of crane gear, to improve accuracy and the safety of hoist controlling Purpose.
The embodiment of the present invention three provides a kind of wind load and controls device, technical side described in the embodiment of the present invention three In case, the current arm support attitude of crane gear can be determined according to the current arm support elevation angle of crane gear, and combine The current arm support head wind speed of crane gear, current lift hook position and current lift heavy calculate working as of crane gear Front wind load, and by the maximum wind load that will can bear under calculated current wind load and current arm support attitude Be compared to determine crane gear can safety work, thus relative to described in the prior art by setting Put a fixing wind speed reference value and the jib head wind speed that itself and anemobiagraph measurement obtained compares Mode judge whether crane can carry out the mode of lifting operation and compare, and can reach according to different arms Frame attitude, carries out quantitative analysis to the wind load of crane gear, to improve the standard of the hoist controlling under wind load effect Really property and the purpose of safety, and, owing to accuracy and the safety of hoist controlling have all obtained greatly The raising of amplitude, thus on this basis, also can reach and expand the job area of crane gear and improve The purpose of the rate of attendance (i.e. utilization rate) of crane gear.Further, since in skill described in the embodiment of the present invention three In art scheme, it is possible to consider the current arm support elevation angle of crane gear, current arm support head wind speed, current Each factor impacts on wind load such as lift hook position and current lift heavy, thus relative to described in the prior art Take into consideration only this factor of wind speed for the impact of wind load, can further improve the accurate of hoist controlling Property.Further, owing to, in technical scheme described in the embodiment of the present invention three, being respectively used to measure crane gear The anemobiagraph of the current arm support elevation angle, current arm support head wind speed, current lift hook position and current lift heavy etc., Standard configuration device in the usually crane gear such as angular encoder, angular transducer, limiter of moment, therefore, Also can, on the basis of without increasing any extra sensing equipment, reach to give full play to the performance of crane Effect.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know base This creativeness concept, then can make other change and amendment to these embodiments.So, appended right is wanted Ask and be intended to be construed to include preferred embodiment and fall into all changes and the amendment of the scope of the invention. Obviously, those skilled in the art can carry out various change and modification without deviating from the present invention's to the present invention Spirit and scope.So, if the present invention these amendment and modification belong to the claims in the present invention and etc. Within the scope of technology, then the present invention is also intended to comprise these change and modification.

Claims (19)

1. a wind load control system, it is characterised in that including:
Wind speed measuring device, for measuring the current arm support head wind speed of crane gear；
Lift hook position measurement apparatus, for measuring the current lift hook position of crane gear；
Jib elevation angle measuring device, for measuring the current arm support elevation angle of crane gear；
Lift heavy measurement apparatus, for measuring the current lift heavy of crane gear；
Wind load controls device, for the current arm support elevation angle according to described crane gear and described crane gear Jib combined information, determine the current arm support attitude of described crane gear, and according to described crane gear Current arm support attitude, the current arm support head wind speed of described crane gear, the current suspension hook of described crane gear The current lift heavy of position and described crane gear calculates the current wind load of described crane gear, and will calculate To current wind load and the current arm support attitude of the described crane gear pre-set under the maximum that can bear Wind load compares, however, it is determined that calculated current wind load can bear less than under current arm support attitude Big wind load, it is determined that described crane gear can safety work, otherwise, it is determined that described crane gear cannot Safety work.
2. wind load control system as claimed in claim 1, it is characterised in that
Described wind load control device, specifically for the current arm support attitude according to described crane gear, described The current arm support head wind speed of heavy equipment, the current lift hook position of described crane gear and described crane gear Current lift heavy calculate and act on the current operating state wind load on described crane gear, and act on described Wind load on crane gear current institute handling article, and act on calculated on described crane gear Current operating state wind load and act on wind load sum on described crane gear current institute handling article and make Current wind load for described crane gear.
3. wind load control system as claimed in claim 2, it is characterised in that
Described wind load controls device, acts on described crane gear specifically for using the first formula to calculate Current operating state wind load and employing the second formula calculate and act on described crane gear current institute handling thing Wind load on product；
Wherein, described first formula is Pw=CPA, described PwCurrent for act on described crane gear Duty wind load, C is the wind factor set, and P is current operating state blast, and A is described lifting Equipment is perpendicular to the entity front face area of wind direction, and P=0.625V0 2, V0Current for described crane gear Jib head wind speed；
Described second formula is PwQ=1.2PhAQ, described PwQFor acting on the handling of described crane gear current institute Wind load on article, PhAccording to height and the described crane gear of described crane gear current institute handling article Current arm support height of head between ratio current operating state blast is converted after obtained by wind Pressure, AQThe entity front face area of wind direction, wherein, institute it is perpendicular to for described crane gear current institute handling article The height stating crane gear current institute handling article is that the current lift hook position institute according to described crane gear is true Fixed, the current arm support height of head of described crane gear is the current arm support attitude according to described crane gear Or determined by the current arm support elevation angle of described crane gear, described crane gear current institute handling article are vertical Entity front face area in wind direction is that the current lift heavy according to described crane gear or the external world are according to described lifting Determined by the entity front face area that the state of equipment current institute handling article is inputted.
4. wind load control system as claimed in claim 1, it is characterised in that
Described wind load controls device, is additionally operable to according to the incidence relation between wind speed and height and described The current arm support height of head of heavy equipment and the current arm support head wind speed of described crane gear, determine described rising The jib of heavy equipment is in jib head wind speed corresponding during the different jib elevation angle, and combines corresponding jib and face upward The lift hook position of the described crane gear under angle and the current lift heavy of described crane gear, calculate current lift heavy Under described crane gear wind load under the different jib elevations angle, and, by by calculated current lift heavy Under described crane gear wind load under each jib elevation angle to crane gear that pre-set, described corresponding The maximum wind load that can bear under jib attitude corresponding to the jib elevation angle compares, and determines current lift heavy Under the safe change angle scope corresponding to jib of described crane gear；Wherein, described crane gear work as Front jib height of head is the current of the current arm support attitude according to described crane gear or described crane gear Determined by the jib elevation angle.
5. wind load control system as claimed in claim 4, it is characterised in that
Described wind load controls device, is additionally operable to show that current wind load occupies and can bear under current arm support attitude Under the percentage size of maximum wind load, and current lift heavy, the safety corresponding to jib of described crane gear becomes Width angular range, and occupy, according to the current wind load of display, the maximum wind load that can bear under current arm support attitude Percentage size and current lift heavy under the safe change angle model corresponding to jib of described crane gear Enclose, control described crane gear and run in respective secure areas.
6. wind load control system as claimed in claim 1, it is characterised in that
Described wind load control device, be additionally operable to by the current arm support head wind speed of described crane gear with set in advance The maximum wind velocity that can bear under the current arm support attitude of the described crane gear put compares, however, it is determined that institute State that the current arm support head wind speed of crane gear is lower less than the current arm support attitude of described crane gear can be held The maximum wind velocity being subject to, it is determined that described crane gear can safety work, otherwise, it is determined that reset for described Standby cannot safety work.
7. a crane gear, it is characterised in that include that the arbitrary described wind load of claim 1～6 controls System.
8. a wind load control method, it is characterised in that including:
Obtain the current arm support head wind speed of crane gear, current lift hook position, the current arm support elevation angle and work as Front lift heavy；
The current arm support elevation angle according to the described crane gear got and the jib group of described crane gear Conjunction information, determines the current arm support attitude of described crane gear, and according to the described crane gear got Current arm support attitude, the current arm support head wind speed of described crane gear, the current suspension hook of described crane gear The current lift heavy of position and described crane gear calculates the current wind load of described crane gear, and will calculate To current wind load and the current arm support attitude of the described crane gear pre-set under the maximum that can bear Wind load compares, however, it is determined that calculated current wind load can bear less than under current arm support attitude Big wind load, it is determined that described crane gear can safety work, otherwise, it is determined that described crane gear cannot Safety work.
9. wind load control method as claimed in claim 8, it is characterised in that according to getting The current arm support attitude of crane gear, the current arm support head wind speed of described crane gear, described crane gear Current lift hook position and described crane gear current lift heavy calculate described crane gear current wind load, Including:
Current arm support attitude according to the described crane gear got, the current arm support head of described crane gear The current lift heavy calculating effect of portion's wind speed, the current lift hook position of described crane gear and described crane gear Current operating state wind load on described crane gear, and act on the handling of described crane gear current institute Wind load on article, and by the calculated current operating state wind load acted on described crane gear with And act on wind load sum the working as described crane gear on described crane gear current institute handling article Front wind load.
10. wind load control method as claimed in claim 9, it is characterised in that according to getting The current arm support attitude of crane gear, the current arm support head wind speed of described crane gear, described crane gear Current lift hook position and described crane gear current lift heavy calculate act on described crane gear Current operating state wind load, and act on the wind load on described crane gear current institute handling article, including:
The first formula is used to calculate the current operating state wind load and employing acting on described crane gear Second formula calculates and acts on the wind load on described crane gear current institute handling article；
Wherein, described first formula is Pw=CPA, described PwCurrent for act on described crane gear Duty wind load, C is the wind factor set, and P is current operating state blast, and A is described lifting Equipment is perpendicular to the entity front face area of wind direction, and P=0.625V0 2, V0Current for described crane gear Jib head wind speed；
Described second formula is PwQ=1.2PhAQ, described PwQFor acting on the handling of described crane gear current institute Wind load on article, PhAccording to height and the described crane gear of described crane gear current institute handling article Current arm support height of head between ratio current operating state blast is converted after obtained by wind Pressure, AQThe entity front face area of wind direction, wherein, institute it is perpendicular to for described crane gear current institute handling article The height stating crane gear current institute handling article is that the current lift hook position institute according to described crane gear is true Fixed, the current arm support height of head of described crane gear is the current arm support attitude according to described crane gear Or determined by the current arm support elevation angle of described crane gear, described crane gear current institute handling article are vertical Entity front face area in wind direction is that the current lift heavy according to described crane gear or the external world are according to described lifting Determined by the entity front face area that the state of equipment current institute handling article is inputted.
11. wind load control methods as claimed in claim 8, it is characterised in that described method also includes:
Current arm support height of head according to the incidence relation between wind speed and height and described crane gear With the current arm support head wind speed of described crane gear, determine that the jib of described crane gear is in different jib Jib head wind speed corresponding during the elevation angle；And
In conjunction with the lift hook position of the described crane gear under the corresponding jib elevation angle and working as of described crane gear Front lift heavy, calculates described crane gear wind load under the different jib elevations angle under current lift heavy；And,
By by described crane gear wind load under each jib elevation angle under calculated current lift heavy with Crane gear that pre-set, described can bear under the jib attitude corresponding to the corresponding jib elevation angle Strong wind carries and compares, and determines the safe variable phase angle corresponding to the jib of described crane gear under current lift heavy Degree scope；Wherein, the current arm support height of head of described crane gear is current according to described crane gear Determined by the current arm support elevation angle of jib attitude or described crane gear.
12. wind load control methods as claimed in claim 11, it is characterised in that described method also includes:
The percentage size of the maximum wind load showing current wind load to occupy under current arm support attitude to can bear, with And the safe change angle scope corresponding to jib of described crane gear under current lift heavy；And
Current wind load according to display occupies the percentage ratio of the maximum wind load that can bear under current arm support attitude Under size and current lift heavy, the safe change angle scope corresponding to jib of described crane gear, controls Described crane gear runs in respective secure areas.
13. wind load control methods as claimed in claim 8, it is characterised in that described method also includes:
Current by the current arm support head wind speed of described crane gear and the described crane gear pre-set The maximum wind velocity that can bear under jib attitude compares；
If it is determined that the current arm support head wind speed of described crane gear is less than the current arm support of described crane gear The maximum wind velocity that can bear under attitude, it is determined that described crane gear can safety work, otherwise, the most really Fixed described crane gear cannot safety work.
14. 1 kinds of wind load control device, it is characterised in that including:
Acquisition module, for obtaining the current arm support head wind speed of crane gear, current lift hook position, current The jib elevation angle and current lift heavy；
Processing module, the current arm support elevation angle of the described crane gear for getting according to described acquisition module And the jib combined information of described crane gear, determine the current arm support attitude of described crane gear, and root The current arm support attitude of described crane gear got according to described acquisition module, described crane gear current The current lift heavy meter of jib head wind speed, the current lift hook position of described crane gear and described crane gear Calculate the current wind load of described crane gear, and by calculated current wind load and the described lifting pre-set The maximum wind load that can bear under the current arm support attitude of equipment compares, however, it is determined that calculated currently Wind load is less than the maximum wind load that can bear under current arm support attitude, it is determined that described crane gear can safety Operation, otherwise, it is determined that described crane gear cannot safety work.
15. wind load as claimed in claim 14 control device, it is characterised in that
Described processing module, current specifically for the described crane gear that gets according to described acquisition module Jib attitude, the current arm support head wind speed of described crane gear, the current lift hook position of described crane gear And the current lift heavy of described crane gear calculates and acts on the current operating state wind on described crane gear Carry, and act on the wind load on described crane gear current institute handling article, and by calculated effect Current operating state wind load on described crane gear and act on the handling of described crane gear current institute Wind load sum on article is as the current wind load of described crane gear.
16. wind load as claimed in claim 15 control device, it is characterised in that
Described processing module, act on described crane gear specifically for using the first formula to calculate is current Duty wind load and employing the second formula calculate and act on described crane gear current institute handling article Wind load；
Wherein, described first formula is Pw=CPA, described PwCurrent for act on described crane gear Duty wind load, C is the wind factor set, and P is current operating state blast, and A is described lifting Equipment is perpendicular to the entity front face area of wind direction, and P=0.625V0 2, V0Current for described crane gear Jib head wind speed；
Described second formula is PwQ=1.2PhAQ, described PwQFor acting on the handling of described crane gear current institute Wind load on article, PhAccording to height and the described crane gear of described crane gear current institute handling article Current arm support height of head between ratio current operating state blast is converted after obtained by wind Pressure, AQThe entity front face area of wind direction, wherein, institute it is perpendicular to for described crane gear current institute handling article The height stating crane gear current institute handling article is that the current lift hook position institute according to described crane gear is true Fixed, the current arm support height of head of described crane gear is the current arm support attitude according to described crane gear Or determined by the current arm support elevation angle of described crane gear, described crane gear current institute handling article are vertical Entity front face area in wind direction is that the current lift heavy according to described crane gear or the external world are according to described lifting Determined by the entity front face area that the state of equipment current institute handling article is inputted.
17. wind load as claimed in claim 14 control device, it is characterised in that
Described processing module, is additionally operable to reset according to the incidence relation between wind speed and height and described Standby current arm support height of head and the current arm support head wind speed of described crane gear, determine that described rising is reseted Standby jib is in jib head wind speed corresponding during the different jib elevation angle；And combine under the corresponding jib elevation angle The lift hook position of described crane gear and the current lift heavy of described crane gear, calculate institute under current lift heavy State crane gear wind load under the different jib elevations angle；And, by by institute under calculated current lift heavy State crane gear wind load under each jib elevation angle to crane gear that pre-set, described at corresponding jib The maximum wind load that can bear under jib attitude corresponding to the elevation angle compares, and determines institute under current lift heavy State the safe change angle scope corresponding to the jib of crane gear；Wherein, described crane gear work as forearm Frame height of head is the current arm support attitude according to described crane gear or the current arm support of described crane gear Determined by the elevation angle.
18. wind load as claimed in claim 17 control device, it is characterised in that described wind load controls dress Put and also include display module:
Described display module, for showing that current wind load occupies the strong wind that can bear under current arm support attitude The safe change angle corresponding to jib of described crane gear under the percentage size carried, and current lift heavy Scope；
Described processing module, is additionally operable to the current wind load according to described display module shows and occupies current arm support appearance The jib of described crane gear under the percentage size of the maximum wind load that can bear under state and current lift heavy Corresponding safe change angle scope, controls described crane gear and runs in respective secure areas.
19. wind load as claimed in claim 14 controls device, it is characterised in that
Described processing module, be additionally operable to by the current arm support head wind speed of described crane gear with pre-set The maximum wind velocity that can bear under the current arm support attitude of described crane gear compares；If it is determined that described The current arm support head wind speed of heavy equipment can bear less than under the current arm support attitude of described crane gear Maximum wind velocity, it is determined that described crane gear can safety work, otherwise, it is determined that described crane gear without Method safety work.
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