CN104495622A - A wind load control system, method, device and lifting equipment - Google Patents

Abstract

The invention discloses a wind load control system, a method, a device and a hoisting device, which can determine the current boom attitude of the hoisting device according to the current boom elevation angle of the hoisting device and boom combination information of the hoisting device, calculate the current wind load of the hoisting device by combining the current boom head wind speed, the current hook position and the current sling weight, and determine whether the hoisting device can safely operate by comparing the current wind load with the maximum wind load which can be borne under the current boom attitude, thereby achieving the purposes of quantitatively analyzing the wind load of the hoisting device according to different boom attitudes, improving the accuracy and safety of hoisting control under the action of the wind load, further expanding the operating range of the hoisting device and improving the attendance rate, namely the utilization rate of the hoisting device. In addition, the influence of various factors such as the current hoisting weight on the wind load can be comprehensively considered, so that the accuracy of hoisting control is further improved compared with the prior art that the influence of the factor of the wind speed on the wind load is only considered.

Description

A wind load control system, method, device and lifting equipment

technical field

The invention relates to the technical field of lifting equipment safety control, in particular to a wind load control system, method, device and lifting equipment.

Background technique

Crawler cranes, as a kind of special operating machinery, are widely used in nuclear power, wind power and other fields due to their many jib combinations, large lifting capacity, and strong mobility. In the above fields, the hoisting operation is basically outdoors, and the uncertainty of the environment has a great impact on the safety of the hoisting operation and the progress of the construction work. On this basis, wind load is a very important environmental factor in crane safety. The field of control has received extensive attention.

Specifically, at present, in order to monitor the impact of wind load on the crane operation, to ensure the safety of the crane operation and to expand the operating range of the crane, the industry mainly adopts the method of installing an anemometer on the head of the crane jib to monitor the wind speed in real time, and Compared with the maximum wind speed on which the crane structure design is based, it is determined whether the hoisting operation can be carried out.

Taking the existing wind load control system of the crawler crane shown in FIG. 1 as an example, the working principle of the existing wind load control scheme will be briefly described below. Wherein, the wind load control system mainly includes an anemometer 11 installed on the head of the jib of the crane, and a control display panel 12 (including a moment limiter). Its working principle is: the anemometer 11 measures the wind speed, and sends the measured wind speed data to the control display panel 12, and the control display panel 12 compares the current measured wind speed with the one set according to the structural design of the crane. If it is determined that the current measured wind speed is lower than the set critical wind speed, it can be determined that the hoisting and lifting can continue, and different degrees of early warning can be given according to the wind speed; otherwise, the crane operation can be restricted , and give a safety alarm to prompt the operation danger and prevent the occurrence of hoisting operation accidents.

That is to say, in the existing wind load control scheme, it is judged whether the crane can carry out the hoisting operation by setting a fixed wind speed reference value and comparing it with the wind speed at the boom head measured by the anemometer Yes, because the maximum wind speed that different jib combinations or different jib attitudes can bear is not the same, resulting in too general judgment methods, that is, only qualitative judgments can be made on the hoisting operation of the crane, so that the judgment results are not accurate. Inaccurate. In addition, in the existing wind load control scheme, only the influence of wind speed on the wind load is actually considered, and the influence of other data of the crane (such as the current hoisting weight, etc.) on the wind load is not considered. Increased inaccuracy of control results.

Therefore, there is an urgent need to provide a more accurate wind load control scheme to monitor the impact of wind load on the crane operation, so as to achieve the purpose of expanding the crane's operating range and improving the crane's utilization rate while ensuring the safety of the crane's operation.

Contents of the invention

Embodiments of the present invention provide a wind load control system, method, device and lifting equipment, which are used to solve the problem of inaccurate control results caused by too general control methods of existing wind load control schemes.

An embodiment of the present invention provides a wind load control system, including:

Wind speed measuring device for measuring the wind speed of the current jib head of the lifting equipment;

Hook position measuring device for measuring the current hook position of the lifting equipment;

The jib elevation angle measuring device is used to measure the current jib elevation angle of the lifting equipment;

The hoisting weight measuring device is used to measure the current hoisting weight of the lifting equipment;

The wind load control device is used to determine the current jib attitude of the lifting device according to the current jib elevation angle of the lifting device and the jib combination information of the lifting device, and calculating the current wind load of the lifting device by the current jib attitude, the current wind speed of the boom head of the lifting device, the current hook position of the lifting device and the current hoisting weight of the lifting device, and Comparing the calculated current wind load with the preset maximum wind load that can be borne under the current jib attitude of the lifting device, if it is determined that the calculated current wind load is less than the current jib attitude that can be borne If the maximum wind load is exceeded, it is determined that the lifting device can operate safely, otherwise, it is determined that the lifting device cannot operate safely.

Furthermore, the embodiment of the present invention also provides a lifting device, the lifting device includes the wind load control system described in the embodiment of the present invention.

Further, the embodiment of the present invention also provides a wind load control method, including:

Obtain the current jib head wind speed, current hook position, current jib elevation angle and current hoisting weight of the lifting equipment;

According to the acquired current jib elevation angle of the lifting equipment and the jib combination information of the lifting equipment, determine the current jib posture of the lifting equipment, and according to the acquired current jib attitude of the lifting equipment The jib attitude, the current wind speed of the jib head of the lifting device, the current hook position of the lifting device and the current hoisting weight of the lifting device calculate the current wind load of the lifting device, and Comparing the calculated current wind load with the preset maximum wind load that can be borne under the current jib attitude of the lifting device, if it is determined that the calculated current wind load is less than the maximum that can be borne under the current jib attitude If the wind load is low, it is determined that the lifting device can operate safely, otherwise, it is determined that the lifting device cannot operate safely.

Further, the embodiment of the present invention also provides a wind load control device, including:

The obtaining module is used to obtain the current wind speed at the head of the jib, the current position of the hook, the current elevation angle of the jib and the current hoisting weight of the lifting equipment;

A processing module, configured to determine the current boom attitude of the lifting device according to the current jib elevation angle of the lifting device acquired by the acquisition module and the jib combination information of the lifting device, and The acquisition module acquires the current jib attitude of the lifting device, the current wind speed of the boom head of the lifting device, the current hook position of the lifting device, and the current hoisting weight of the lifting device Calculate the current wind load of the lifting device, and compare the calculated current wind load with the preset maximum wind load that can be borne under the current jib attitude of the lifting device, if it is determined that the calculated current If the wind load is less than the maximum wind load that can be withstood under the current attitude of the jib, it is determined that the lifting device can work safely; otherwise, it is determined that the lifting device cannot work safely.

The beneficial effects of the present invention are as follows:

The embodiment of the present invention provides a wind load control system, method, device and lifting equipment. In the technical solution described in the embodiment of the present invention, the current jib of the lifting equipment can be determined according to the current jib elevation angle of the lifting equipment. Attitude, combined with the current wind speed of the jib head of the lifting equipment, the current hook position and the current hoisting weight to calculate the current wind load of the lifting equipment, and by combining the calculated current wind load with the current jib attitude that can withstand Compared with the maximum wind load of the lifting equipment to determine whether the lifting equipment can operate safely, compared with the prior art by setting a fixed wind speed reference value and comparing it with the wind speed of the jib head measured by the anemometer Compared with the method of judging whether the crane can carry out hoisting operations, it can achieve quantitative analysis of the wind load of the hoisting equipment according to different jib attitudes, so as to improve the accuracy and safety of hoisting control under the action of wind load Sex, and then achieve the purpose of expanding the operating range of the lifting equipment and improving the attendance rate (that is, the utilization rate) of the lifting equipment. In addition, because in the technical solution described in the embodiment of the present invention, the influence of various factors such as the current jib elevation angle of the lifting equipment, the current wind speed at the head of the jib, the current hook position, and the current hoisting weight on the wind load can be comprehensively considered, Therefore, the accuracy of hoisting control can be further improved compared to the prior art which only considers the influence of the factor of wind speed on the wind load.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without making creative efforts.

Fig. 1 shows the structure diagram of existing wind load control system;

Fig. 2 is a schematic structural diagram of the wind load control system described in Embodiment 1 of the present invention;

FIG. 3 is a schematic flow chart of the wind load control method described in Embodiment 2 of the present invention;

FIG. 4 is a schematic structural diagram of the wind load control device in Embodiment 3 of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Embodiment one:

Embodiment 1 of the present invention provides a wind load control system, as shown in FIG. 2 , which is a schematic structural diagram of the wind load control system in Embodiment 1 of the present invention. The wind load control system may include:

The wind speed measuring device 21 can be used to measure the current wind speed of the jib head of the lifting equipment, that is, measure the current wind speed of the jib head of the lifting equipment;

The hook position measuring device 22 can be used to measure the current hook position of the lifting device, that is, measure the current position of the hook of the lifting device, wherein the current position of the hook of the lifting device usually refers to the hook position of the lifting device. The height of the hook from the horizontal plane where the lifting device is located;

The jib elevation angle measuring device 23 can be used to measure the current jib elevation angle of the lifting equipment, that is, measure the current elevation angle of the jib of the lifting equipment;

The hoisting weight measuring device 24 can be used to measure the current hoisting weight of the hoisting equipment, that is, to measure the weight of the items currently hoisted by the hoisting equipment;

The wind load control device 25 can be used to determine the current jib attitude of the lifting equipment according to the current jib elevation angle of the lifting equipment and the jib combination information of the lifting equipment, and Calculate the current wind load of the lifting device based on the current boom attitude of the lifting device, the current wind speed of the boom head of the lifting device, the current hook position of the lifting device and the current hoisting weight of the lifting device, And comparing the calculated current wind load with the preset maximum wind load that can be borne under the current jib attitude of the lifting device, if it is determined that the calculated current wind load is less than the current jib attitude that can withstand If the maximum wind load is determined, it can be determined that the lifting equipment can work safely; The device is not safe to operate.

Wherein, the maximum wind load that the lifting equipment can bear under the current jib attitude can be obtained comprehensively according to the jib tipping stability and the jib structural strength under the current jib attitude of the lifting equipment . Wherein, the jib tipping stability under the current jib attitude of the lifting device refers to the anti-overturning capability of the jib of the lifting device under the current jib attitude, which will not be described in this embodiment of the present invention.

In addition, it should be noted that when it is determined that the calculated current wind load is not less than the maximum wind load that can be borne under the current jib attitude, the wind load control device 25 can lower the hook to make the hoisting weight closer to the ground , or give up the hoisting and restart the operation after the wind speed decreases, etc. to control the hoisting operation, which is not limited in this embodiment of the present invention. Moreover, when it is determined that the calculated current wind load is not less than the maximum wind load that can be borne under the current jib attitude, the wind load control device 25 can also issue a safety alarm to prompt the operation danger and prevent the occurrence of hoisting operation accidents .

Optionally, in the embodiment of the present invention, the wind load control device 25 can be specifically configured to, according to the current boom attitude of the lifting equipment, the current wind speed of the boom head of the The current hook position of the lifting device and the current hoisting weight of the lifting device are used to calculate the current working state wind load acting on the lifting device and the wind load acting on the objects currently lifted by the lifting device. The sum of the calculated wind load in the current working state acting on the lifting equipment and the wind load acting on the items currently being hoisted by the lifting equipment is taken as the current wind load of the lifting equipment .

That is to say, when calculating the current wind load of the lifting device, the wind load of the entire hoisting system including the lifting device and the objects lifted by the lifting device can be considered comprehensively, so that Accurate analysis of the wind load of the lifting equipment is achieved to improve the accuracy and safety of hoisting control under the action of wind load.

Further, the wind load control device 25 can specifically be used to calculate the current working state wind load acting on the lifting equipment by using the first formula, and calculate the wind load acting on the lifting equipment currently suspended by using the second formula. wind load on cargo;

Wherein, the first formula is _Pw =CPA, the _Pw is the current working state wind load acting on the lifting equipment, and C is the set wind force coefficient (and its value can be determined according to the actual situation. setting, or, specifically refer to crane design specifications, such as relevant data in GB3811-83, etc.), P is the wind pressure of the current working state, and A is the lifting equipment (or each member of the lifting equipment ) is the physical windward area perpendicular to the wind direction (its value can be set according to the actual situation), and P=0.625V ₀ ² , where V ₀ is the current wind speed of the boom head of the lifting device measured by the anemometer ( It should be noted that, in order to fully consider the safety of the lifting equipment operation, in the embodiment of the present invention, the wind speed measured by the anemometer can be used as the wind load to act on the most unfavorable horizontal direction of the lifting equipment, including the Lifting equipment and the hoisting system for the items lifted by the lifting equipment);

The second formula is P _wQ = 1.2P _h .A _Q , where P _wQ is the wind load acting on the items currently lifted by the lifting equipment, and P _h is the The ratio between the height of the item to be transported and the height of the current jib head of the lifting device is the wind pressure obtained after converting the wind pressure in the current working state, A _Q is the vertical Entity frontal area in the wind direction, wherein, the height of the item currently hoisted by the lifting device may be determined according to the current hook position of the lifting device, and the current jib head height of the lifting device It may be determined according to the current jib attitude of the lifting equipment or the current jib elevation angle of the lifting equipment, and the physical windward area of the lifting equipment that is currently lifted perpendicular to the wind direction may be determined according to the The current hoisting weight of the lifting equipment or the external (such as hoisting personnel, etc.) is determined according to the entity windward area input by the current state of the lifting equipment (such as the quality, shape or volume of the lifting items, etc.) of.

That is to say, in the embodiment of the present invention, when determining the physical windward area of the items currently being hoisted by the lifting equipment perpendicular to the wind direction, the method of referring to the corresponding standard can be used to determine The weight (or quality) of the hoisted items can automatically estimate the physical windward area of the hoisting equipment currently hoisted items perpendicular to the wind direction, or a corresponding external input interface can also be set on the wind load control device 25, Estimate the physical windward area perpendicular to the wind direction of the items currently being lifted by the lifting equipment by receiving the windward area input by the hoisting personnel according to the actual situation of the items currently being lifted by the lifting equipment through the external input interface , which is not limited in this embodiment of the present invention.

Specifically, according to the relationship between wind speed and height (for details, refer to the third formula), the _Ph can be expressed by the following fourth formula:

P _h =0.625V ² =0.625[V ₀ (H/H ₀ ) ⁿ ] ² =0.625V ₀ ² (H/H ₀ ) ²ⁿ =P(H/H ₀ ) ²ⁿ ;

Wherein, V ₀ is the wind speed of the current jib head of the lifting equipment, H ₀ is the height of the current jib head of the lifting equipment; The wind speed obtained by converting the wind speed at the head of the jib is the wind speed at the head of the jib corresponding to the height of the item being lifted by the lifting equipment as the corresponding height of the head of the jib; H is the wind speed at the head of the jib; The height of the item currently lifted by the equipment, n is the set surface friction coefficient (and its value can be set according to the actual situation, for example, it can usually be set to any value within the range of 0.1 to 0.4 and including the endpoint of the range, etc. ).

Wherein, the above-mentioned third formula for reflecting the relationship between wind speed and height can be expressed as:

V _x =V ₀ (H _x /H ₀ ) ⁿ , wherein, V ₀ is the wind speed of the current jib head of the lifting device, H ₀ is the current height of the jib head of the lifting device, V _x is the wind speed information at the boom head corresponding to the set boom head height, H _x is the set boom head height, and n is the set surface friction coefficient.

Further, it should be noted that, in the embodiment of the present invention, the wind load control device 25 can also be used according to the relationship between wind speed and height (for details, refer to the third formula), and the lifting The current jib head height of the equipment and the current jib head wind speed of the lifting equipment determine the corresponding jib head wind speed when the jib of the lifting equipment is at different jib elevation angles, and combine the corresponding boom The hook position of the lifting device at the frame elevation angle and the current hoisting weight of the hoisting device, calculate the wind load of the hoisting device at different jib elevation angles under the current hoisting weight, and, by calculating The wind load of the lifting equipment at each jib elevation angle under the current hoisting weight is compared with the preset maximum wind load that the lifting equipment can withstand at the jib attitude corresponding to the corresponding jib elevation angle , to determine the safe luffing angle range corresponding to the jib of the lifting equipment under the current hoisting load.

That is to say, since the jib head is at different heights when the jib moves within the range of the set luffing angle, the current jib head at the known current jib elevation angle or the height of the current jib head Under the premise of local wind speed, through the relationship between the jib elevation angle and the height of the jib head, and the relationship between the wind speed and the height, the wind speed of the jib head at different luffing angles (that is, at different jib elevation angles) can be obtained , and furthermore, according to the wind load calculation method described in the embodiment of the present invention, the wind load of the lifting equipment under the same lifting weight (that is, under the current lifting weight) at different jib elevation angles can be obtained, and, by The calculated wind load of the lifting equipment at each jib elevation angle under the current hoisting weight and the preset maximum wind load that the lifting equipment can withstand under the jib attitude corresponding to the corresponding jib elevation angle Comparison is made to determine the safe luffing angle range corresponding to the jib of the lifting device under the current hoisting load.

Further, it should be noted that, in the embodiment of the present invention, the wind load control device 25 can also be used to display the percentage of the calculated current wind load to the maximum wind load that can be borne under the current jib attitude, and The safe luffing angle range corresponding to the jib of the lifting equipment under the current hoisting weight; and according to the percentage of the displayed current wind load to the maximum wind load that can be borne under the current jib attitude, and the current hoisting weight The safe luffing angle range corresponding to the jib of the lifting device controls the operation of the lifting device in a corresponding safe area.

Further, it should be noted that, in addition to being used to display the calculated current wind load as a percentage of the maximum wind load that can be borne under the current jib attitude, the wind load control device 25 can also be used to The real-time change of the jib attitude of the equipment, the real-time display shows that the calculated wind load under the changed jib attitude occupies the preset maximum wind load that the lifting equipment can bear under the changed jib attitude The percentage of , which is not described in this embodiment of the present invention.

Further, it should be noted that, in the embodiment of the present invention, the wind load control device 25 can also be used to compare the current jib head wind speed of the lifting equipment with the preset current boom speed of the lifting equipment. Compared with the maximum wind speed that can be withstood under the jib attitude of the lifting equipment, if it is determined that the current wind speed of the jib head of the lifting device is less than the maximum wind speed that can be withstood under the current jib attitude of the lifting equipment, then it can be determined that the The lifting device is capable of operating safely, otherwise, it can be determined that the lifting device is not capable of operating safely.

That is to say, in the embodiment of the present invention, similar to the prior art, the wind load control device 25 can also use only the wind speed to control the hoisting operation accordingly. However, different from the prior art, in In the embodiment of the present invention, when the wind speed is used to control the hoisting operation, different wind speed reference values that meet the safety control can usually be set for different boom postures, so as to achieve different boom postures according to different boom postures. The wind load of heavy equipment is quantitatively analyzed to improve the accuracy and safety of hoisting control.

Further, it should be noted that, in the embodiment of the present invention, the wind speed measuring device 21 can usually be an anemometer located at the jib head of the lifting equipment, and the hook position measuring device 22 can usually be The angle encoder located at the hoisting winch of the lifting equipment, the jib elevation angle measuring device 23 can usually be an angle sensor located at the bottom of the jib of the lifting equipment, and the hoisting weight measuring device 24 can usually be located at the lifting Moment limiters in heavy equipment. That is, the wind load control device 25 can specifically be used to obtain the current wind speed of the jib head of the lifting equipment from the anemometer located at the jib head of the lifting equipment, The current hook position of the lifting device is obtained from the angle encoder, the current jib elevation angle of the lifting device is obtained from the angle sensor located at the bottom of the jib of the lifting device, and the starting point is obtained from the moment limiter located inside the lifting device. The current hoisting weight of the heavy equipment.

It should be noted that since anemometers, angle encoders, angle sensors, moment limiters, etc. are usually standard equipment in lifting equipment, therefore, in the technical solutions described in the embodiments of the present invention, there is no need to add any On the basis of additional sensing equipment, the effect of fully exerting the performance of the crane can be achieved.

In addition, it should be noted that the wind load control device 25 described in the embodiment of the present invention can usually be located at the position where the control display panel 12 in the existing wind load control system is located, that is, it can be equivalent to the improved control display panel , which will not be described in detail in this embodiment of the present invention.

Further, the moment limiter, that is, the hoisting weight measuring device 24 can usually be an integrated device located in the wind load control device 25; of course, it should be noted that the moment limiter, that is, the hoisting The re-measurement device 24 can also be an independent device independent of the wind load control device 25, which will not be described in this embodiment of the present invention. Specifically, in FIG. 2 , it is illustrated schematically by taking the moment limiter, that is, the lifting weight measuring device 24 as an integrated device located in the wind load control device 25 as an example.

Furthermore, based on the same inventive concept, Embodiment 1 of the present invention also provides a lifting device, which may include the wind load control system described in Embodiment 1 of the present invention, and this embodiment of the present invention does not make any repeat. For the specific structure and functions of the wind load control system, reference may be made to the relevant description in Embodiment 1 of the present invention, and repeated descriptions will not be repeated.

Embodiment 1 of the present invention provides a wind load control system and lifting equipment. In the technical solution described in Embodiment 1 of the present invention, the current jib attitude of the lifting equipment can be determined according to the current jib elevation angle of the lifting equipment. Combined with the current wind speed of the jib head of the lifting equipment, the current hook position and the current hoisting weight to calculate the current wind load of the lifting equipment, and by combining the calculated current wind load with the maximum bearing capacity of the current jib attitude Compared with the wind load to determine whether the lifting equipment can operate safely, compared with the method described in the prior art by setting a fixed wind speed reference value and comparing it with the wind speed at the jib head measured by the anemometer Compared with the method of judging whether the crane can carry out hoisting operations, it can achieve quantitative analysis of the wind load of the hoisting equipment according to different jib attitudes, so as to improve the accuracy of hoisting control and safety under the action of wind load. In addition, since the accuracy and safety of hoisting control have been greatly improved, on this basis, it is also possible to expand the operating range of hoisting equipment, such as cranes, and improve the attendance rate of hoisting equipment (i.e. usage rate) purposes. In addition, because in the technical solution described in Embodiment 1 of the present invention, the influence of various factors such as the current jib elevation angle of the lifting equipment, the current wind speed at the head of the jib, the current hook position, and the current hoisting weight on the wind load can be comprehensively considered. , so that the accuracy of hoisting control can be further improved compared to the prior art that only considers the influence of wind speed on wind load. Moreover, in the technical solution described in Embodiment 1 of the present invention, the anemometers and angles used to measure the current jib elevation angle, current jib head wind speed, current hook position, and current hoisting weight of the lifting equipment, etc. Encoders, angle sensors, moment limiters, etc. are usually standard components in lifting equipment. Therefore, without adding any additional sensing equipment, the performance of the crane can be fully utilized.

Embodiment two:

Based on the same inventive concept, Embodiment 2 of the present invention provides a wind load control method, as shown in FIG. 3 , which is a schematic flowchart of the wind load control method described in Embodiment 2 of the present invention. The wind load control method can be Include the following steps:

Step 301: Obtain the current wind speed at the head of the jib, the current position of the hook, the current elevation angle of the jib, and the current hoisting weight of the lifting device.

Specifically, the execution subject of each step in Embodiment 2 of the present invention may generally be the wind load control device described in Embodiment 1 of the present invention, which will not be described in detail in this embodiment of the present invention.

Optionally, obtaining the current wind speed at the head of the jib, the current position of the hook, the current elevation angle of the jib, and the current lifting weight of the lifting device may include:

Obtain the current wind speed of the jib head of the lifting equipment from the anemometer located at the head of the jib of the lifting equipment, and obtain the current hook of the lifting equipment from the angle encoder located at the hoisting winch of the lifting equipment position, obtain the current jib elevation angle of the lifting device from the angle sensor located at the bottom of the jib of the lifting device, and obtain the current lifting weight of the lifting device from the moment limiter located inside the lifting device.

It should be noted that since anemometers, angle encoders, angle sensors, moment limiters, etc. are usually standard equipment in lifting equipment, in the technical solutions described in the embodiments of the present invention, there is no need to add any additional On the basis of advanced sensing equipment, the effect of giving full play to the performance of the crane is achieved.

Step 302: Determine the current jib attitude of the lifting device according to the acquired current jib elevation angle of the lifting device and the jib combination information of the lifting device, and according to the obtained The current jib attitude of the equipment, the current wind speed of the jib head of the lifting equipment, the current hook position of the lifting equipment and the current hoisting weight of the lifting equipment calculate the current wind load of the lifting equipment .

Optionally, according to the acquired current jib attitude of the lifting device, the current wind speed of the boom head of the lifting device, the current hook position of the lifting device, and the current The hoisting weight calculates the current wind load of the hoisting equipment, which may include:

According to the acquired current jib attitude of the lifting equipment, the wind speed of the current jib head of the lifting equipment, the current hook position of the lifting equipment and the current hoisting weight of the lifting equipment, the calculation function The wind load in the current working state on the lifting equipment, and the wind load acting on the objects currently lifted by the lifting equipment, and the calculated wind load in the current working state acting on the lifting equipment The current wind load of the lifting device is the sum of the load of the lifting device and the wind load acting on the item currently lifted by the lifting device.

That is to say, when calculating the current wind load of the lifting device, the wind load of the entire hoisting system including the lifting device and the objects lifted by the lifting device can be considered comprehensively, so that Accurate analysis of the wind load of the lifting equipment is achieved to improve the accuracy and safety of hoisting control under the action of wind load.

Further, according to the obtained current jib attitude of the lifting equipment, the current wind speed of the jib head of the lifting equipment, the current hook position of the lifting equipment, and the current hoisting position of the lifting equipment The recalculation of the wind load in the current working state acting on the lifting device and the wind load acting on the items currently lifted by the lifting device may include:

Using the first formula to calculate the current working state wind load acting on the lifting device and using the second formula to calculate the wind load acting on the lifting device currently lifting items;

Wherein, the first formula is _Pw =CPA, the _Pw is the current working state wind load acting on the lifting equipment, and C is the set wind force coefficient (and its value can be determined according to the actual situation. setting, or, specifically refer to crane design specifications, such as relevant data in GB3811-83, etc.), P is the wind pressure of the current working state, and A is the lifting equipment (or each member of the lifting equipment ) Entity frontal area perpendicular to the wind direction, and P=0.625V ₀ ² , where V ₀ is the current wind speed of the jib head of the lifting device;

The second formula is P _wQ = 1.2P _h .A _Q , where P _wQ is the wind load acting on the items currently lifted by the lifting equipment, and P _h is the The ratio between the height of the item to be transported and the height of the current jib head of the lifting device is the wind pressure obtained after converting the wind pressure in the current working state, A _Q is the vertical The entity windward area in the wind direction, wherein, the height of the item currently hoisted by the lifting device may be determined according to the current hook position of the lifting device, and the current jib head height of the lifting device It may be determined according to the current jib attitude of the lifting equipment or the current jib elevation angle of the lifting equipment, and the physical windward area of the lifting equipment that is currently lifted perpendicular to the wind direction may be determined according to the The current hoisting weight of the lifting equipment or the external (such as hoisting personnel, etc.) is determined according to the entity windward area input by the current state of the lifting equipment (such as the quality, shape or volume of the lifting items, etc.) of.

That is to say, in the embodiment of the present invention, when determining the physical windward area of the items currently being hoisted by the lifting equipment perpendicular to the wind direction, the method of referring to the corresponding standard can be used to determine The weight (or mass) of the hoisted items automatically estimates the physical windward area of the hoisting equipment currently hoisted items perpendicular to the wind direction, or a corresponding external input interface can also be set on the wind load control device to pass the The external input interface receives the windward area input by the hoisting personnel according to the actual situation of the currently lifted items by the lifting equipment, and estimates the physical windward area of the items currently being lifted by the lifting equipment perpendicular to the wind direction. The present invention The embodiment does not make any limitation on this.

Specifically, according to the relationship between wind speed and height (for details, refer to the third formula), the _Ph can be expressed by the following fourth formula:

P _h =0.625V ² =0.625[V ₀ (H/H ₀ ) ⁿ ] ² =0.625V ₀ ² (H/H ₀ ) ²ⁿ =P(H/H ₀ ) ²ⁿ ;

Wherein, V ₀ is the wind speed of the current jib head of the lifting equipment, H ₀ is the height of the current jib head of the lifting equipment; The wind speed obtained by converting the wind speed at the head of the jib is the wind speed at the head of the jib corresponding to the height of the item being lifted by the lifting equipment as the corresponding height of the head of the jib; H is the wind speed at the head of the jib; The height of the item currently lifted by the equipment, n is the set surface friction coefficient (and its value can be set according to the actual situation, for example, it can usually be set to any value within the range of 0.1 to 0.4 and including the endpoint of the range, etc. ).

Wherein, the above-mentioned third formula for reflecting the relationship between wind speed and height can be expressed as:

V _x =V ₀ (H _x /H ₀ ) ⁿ , wherein, V ₀ is the wind speed of the current jib head of the lifting device, H ₀ is the current height of the jib head of the lifting device, V _x is the wind speed information at the boom head corresponding to the set boom head height, H _x is the set boom head height, and n is the set surface friction coefficient.

Step 303: Comparing the calculated current wind load with the preset maximum wind load that the lifting device can withstand under the current jib attitude, if it is determined that the calculated current wind load is less than the current jib attitude If the maximum wind load that can withstand is determined, then it is determined that the lifting device can work safely; otherwise, it is determined that the lifting device cannot work safely.

Wherein, the maximum wind load that the lifting equipment can bear under the current jib attitude can be obtained comprehensively according to the jib tipping stability and the jib structural strength under the current jib attitude of the lifting equipment . Wherein, the jib tipping stability under the current jib attitude of the lifting device refers to the anti-overturning capability of the jib of the lifting device under the current jib attitude, which will not be described in this embodiment of the present invention.

In addition, it should be noted that when it is determined that the calculated current wind load is not less than the maximum wind load that can be borne under the current jib attitude, the wind load control device can lower the hook to make the hoisting weight closer to the ground, Or give up hoisting and restart the operation after the wind speed decreases to control the hoisting operation, which is not limited in this embodiment of the present invention. Moreover, when it is determined that the calculated current wind load is not less than the maximum wind load that can be withstood under the current jib attitude, the wind load control device can also issue a safety alarm to prompt the operation danger and prevent the occurrence of hoisting operation accidents.

Further, in the embodiment of the present invention, the method may further include:

According to the relationship between wind speed and height, and the current jib head height of the lifting device and the current boom head wind speed of the lifting device, it is determined that the jib of the lifting device is in a different jib position. The wind speed at the jib head corresponding to the elevation angle; and

Combining the hook position of the lifting device at the corresponding jib elevation angle and the current hoisting weight of the hoisting device, calculating the wind load of the hoisting device at different jib elevation angles under the current hoisting weight; and,

By combining the calculated wind load of the hoisting equipment at each jib elevation angle under the current hoisting load with the pre-set wind load that the hoisting equipment can bear under the jib attitude corresponding to the corresponding jib elevation angle The maximum wind load is compared to determine the safe luffing angle range corresponding to the jib of the lifting device under the current hoisting load.

That is to say, since the jib head is at different heights when the jib moves within the range of the set luffing angle, the current jib head at the known current jib elevation angle or the height of the current jib head Under the premise of local wind speed, through the relationship between the jib elevation angle and the height of the jib head, and the relationship between the wind speed and the height, the wind speed of the jib head at different luffing angles (that is, at different jib elevation angles) can be obtained , and furthermore, according to the wind load calculation method described in the embodiment of the present invention, the wind load of the lifting equipment under the same lifting weight (that is, under the current lifting weight) at different jib elevation angles can be obtained, and, by The calculated wind load of the lifting equipment at each jib elevation angle under the current hoisting weight and the preset maximum wind load that the lifting equipment can withstand under the jib attitude corresponding to the corresponding jib elevation angle Comparison is made to determine the safe luffing angle range corresponding to the jib of the lifting device under the current hoisting load.

Further, in the embodiment of the present invention, the method may further include:

Display the percentage of the current wind load to the maximum wind load that can be borne under the current jib attitude, and the safe luffing angle range corresponding to the jib of the lifting device under the current hoisting weight; and

According to the percentage of the displayed current wind load occupying the maximum wind load that can be borne under the current jib attitude, and the safe luffing angle range corresponding to the jib of the lifting equipment under the current hoisting load, the lifting is controlled The device operates within the corresponding safety zone.

Further, in the embodiment of the present invention, the method may further include:

Comparing the current wind speed of the boom head of the lifting device with the preset maximum wind speed that can be withstood under the current boom attitude of the lifting device;

If it is determined that the current boom head wind speed of the lifting device is less than the maximum wind speed that the lifting device can withstand under the current boom attitude of the lifting device, it is determined that the lifting device can work safely; otherwise, it is determined that the Lifting equipment cannot work safely.

That is to say, in the embodiment of the present invention, similar to the prior art, only the wind speed can be used to control the hoisting operation accordingly. However, different from the prior art, in the embodiment of the present invention , when the wind speed is used to control the hoisting operation, different wind speed reference values that meet the safety control can usually be set for different jib attitudes, so as to quantify the wind load of the lifting equipment according to different jib attitudes Analysis, in order to improve the accuracy and safety of hoisting control, especially for light-load hoisting and hoisting schemes with high ground clearance, it has obvious safety advantages.

Embodiment 2 of the present invention provides a wind load control method. In the technical solution described in Embodiment 2 of the present invention, the current jib attitude of the lifting device can be determined according to the current jib elevation angle of the lifting device, and combined with the Calculate the current wind load of the lifting equipment based on the current jib head wind speed, current hook position and current hoisting weight of the equipment, and compare the calculated current wind load with the maximum wind load that can be borne under the current jib attitude To determine whether the lifting equipment can operate safely, so as to judge the crane by setting a fixed wind speed reference value and comparing it with the wind speed of the jib head measured by the anemometer as described in the prior art Whether it can be compared with the way of hoisting operation, it can achieve the quantitative analysis of the wind load of the hoisting equipment according to different jib attitudes, so as to improve the accuracy and safety of hoisting control under the action of wind load, and, Since the accuracy and safety of hoisting control have been greatly improved, on this basis, the purpose of expanding the operating range of the hoisting equipment and improving the attendance rate (that is, the utilization rate) of the hoisting equipment can also be achieved. In addition, because in the technical solution described in Embodiment 2 of the present invention, the influence of various factors such as the current jib elevation angle of the lifting equipment, the current wind speed at the head of the jib, the current hook position, and the current hoisting weight on the wind load can be comprehensively considered. , so that the accuracy of hoisting control can be further improved compared to the prior art that only considers the influence of wind speed on wind load. Furthermore, in the technical solution described in Embodiment 2 of the present invention, the anemometers and angles used to measure the current jib elevation angle, the current jib head wind speed, the current hook position, and the current hoisting weight of the lifting equipment, etc. Encoders, angle sensors, moment limiters, etc. are usually standard components in lifting equipment. Therefore, without adding any additional sensing equipment, the performance of the crane can be fully utilized.

Embodiment three:

Based on the same inventive concept, Embodiment 3 of the present invention provides a wind load control device, as shown in FIG. 4 , which is a schematic structural diagram of the wind load control device in Embodiment 3 of the present invention. The wind load control device can include:

The obtaining module 41 can be used to obtain the current wind speed at the head of the jib, the current position of the hook, the current elevation angle of the jib and the current hoisted weight of the lifting equipment. Optionally, the acquiring module 41 can be specifically configured to acquire the current wind speed at the jib head of the lifting equipment from the anemometer located at the jib head of the lifting equipment, The current hook position of the lifting device is obtained from the angle encoder, the current jib elevation angle of the lifting device is obtained from the angle sensor located at the bottom of the jib of the lifting device, and the starting point is obtained from the moment limiter located inside the lifting device. The current hoisting weight of heavy equipment; wherein, the moment limiter is an integrated device located in the wind load control device, or is an independent device independent of the wind load control device.

The processing module 42 is configured to determine the current boom attitude of the lifting device according to the current jib elevation angle of the lifting device acquired by the acquisition module 41 and the jib combination information of the lifting device, and The current jib attitude of the lifting device, the current wind speed of the boom head of the lifting device, the current hook position of the lifting device, and the current The lifting weight calculates the current wind load of the lifting equipment, and compares the calculated current wind load with the preset maximum wind load that the lifting equipment can withstand under the current boom attitude of the lifting equipment, if it is determined that the calculated If the current wind load is less than the maximum wind load that can be withstood under the current jib attitude, it is determined that the lifting device can work safely; otherwise, it is determined that the lifting device cannot work safely.

Wherein, the maximum wind load that the lifting equipment can bear under the current jib attitude can be obtained comprehensively according to the jib tipping stability and the jib structural strength under the current jib attitude of the lifting equipment . Wherein, the jib tipping stability under the current jib attitude of the lifting device refers to the anti-overturning capability of the jib of the lifting device under the current jib attitude, which will not be described in this embodiment of the present invention.

Optionally, the processing module 42 can be specifically configured to obtain the current boom attitude of the lifting device, the current wind speed of the boom head of the lifting device, the The current hook position of the lifting device and the current hoisting weight of the lifting device are used to calculate the current working state wind load acting on the lifting device and the wind load acting on the objects currently lifted by the lifting device, and The sum of the calculated wind load in the current working state acting on the lifting device and the wind load acting on the objects currently lifted by the lifting device is taken as the current wind load of the lifting device.

That is to say, when calculating the current wind load of the lifting device, the wind load of the entire hoisting system including the lifting device and the objects lifted by the lifting device can be considered comprehensively, so that Accurate analysis of the wind load of the lifting equipment is achieved to improve the accuracy and safety of hoisting control under the action of wind load.

Specifically, the processing module 42 can be specifically configured to use the first formula to calculate the current working state wind load acting on the lifting device and use the second formula to calculate the wind load acting on the lifting device currently lifting the item. wind load;

Wherein, the first formula is _Pw =CPA, the _Pw is the current working state wind load acting on the lifting equipment, C is the set wind force coefficient, P is the current working state wind pressure, and A is the physical windward area of the lifting device perpendicular to the wind direction, and P=0.625V ₀ ² , where V ₀ is the current wind speed of the jib head of the lifting device;

The second formula is P _wQ = 1.2P _h .A _Q , where P _wQ is the wind load acting on the items currently lifted by the lifting equipment, and P _h is the The ratio between the height of the item to be transported and the height of the current jib head of the lifting device is the wind pressure obtained after converting the wind pressure in the current working state, A _Q is the vertical Entity frontal area in the wind direction, wherein, the height of the item currently hoisted by the lifting device may be determined according to the current hook position of the lifting device, and the current jib head height of the lifting device It may be determined according to the current jib attitude of the lifting equipment or the current jib elevation angle of the lifting equipment, and the physical windward area of the lifting equipment that is currently lifted perpendicular to the wind direction may be determined according to the The current hoisting weight of the hoisting equipment or the external environment (such as hoisting personnel, etc.) is determined according to the physical windward area input by the hoisting equipment according to the state of the items currently being hoisted (such as the quality, shape, or volume of the hoisted items, etc.) of.

That is to say, in the embodiment of the present invention, when determining the physical windward area of the items currently being hoisted by the lifting equipment perpendicular to the wind direction, the method of referring to the corresponding standard can be used to determine The weight (or mass) of the hoisted items automatically estimates the physical windward area of the hoisting equipment currently hoisted items perpendicular to the wind direction, or a corresponding external input interface can also be set on the wind load control device to pass the The external input interface receives the windward area input by the hoisting personnel according to the actual situation of the currently lifted items by the lifting equipment, and estimates the physical windward area of the items currently being lifted by the lifting equipment perpendicular to the wind direction. The present invention The embodiment does not make any limitation on this.

Specifically, according to the relationship between wind speed and height (for details, refer to the third formula), the _Ph can be expressed by the following fourth formula:

P _h =0.625V ² =0.625[V ₀ (H/H ₀ ) ⁿ ] ² =0.625V ₀ ² (H/H ₀ ) ²ⁿ =P(H/H ₀ ) ²ⁿ ;

Wherein, V ₀ is the wind speed of the current jib head of the lifting equipment, H ₀ is the height of the current jib head of the lifting equipment; The wind speed obtained by converting the wind speed at the head of the jib is the wind speed at the head of the jib corresponding to the height of the item being lifted by the lifting equipment as the corresponding height of the head of the jib; H is the wind speed at the head of the jib; The height of the item currently lifted by the equipment, n is the set surface friction coefficient (and its value can be set according to the actual situation, for example, it can usually be set to any value within the range of 0.1 to 0.4 and including the endpoint of the range, etc. ).

Wherein, the above-mentioned third formula for reflecting the relationship between wind speed and height can be expressed as:

V _x =V ₀ (H _x /H ₀ ) ⁿ , wherein, V ₀ is the wind speed of the current jib head of the lifting device, H ₀ is the current height of the jib head of the lifting device, V _x is the wind speed information at the boom head corresponding to the set boom head height, H _x is the set boom head height, and n is the set surface friction coefficient.

Further, the processing module 42 can also be used to determine the wind speed of the jib head according to the correlation between the wind speed and the height, and the current jib head height of the lifting equipment and the current jib head wind speed of the lifting equipment. The boom head wind speed corresponding to the jib of the lifting equipment at different jib elevation angles, combined with the hook position of the lifting equipment at the corresponding jib elevation angle and the current hoisting weight of the lifting equipment, Calculating the wind load of the lifting device at different jib elevation angles under the current hoisting load, and by combining the calculated wind load of the hoisting device at each jib elevation angle under the current hoisting load with the preset 1. Compare the maximum wind load that the lifting equipment can withstand under the jib attitude corresponding to the corresponding jib elevation angle to determine the safe luffing angle range corresponding to the jib of the lifting equipment under the current hoisting load .

That is to say, since the jib head is at different heights when the jib moves within the range of the set luffing angle, the current jib head at the known current jib elevation angle or the height of the current jib head Under the premise of local wind speed, through the relationship between the jib elevation angle and the height of the jib head, and the relationship between the wind speed and the height, the wind speed of the jib head at different luffing angles (that is, at different jib elevation angles) can be obtained , and furthermore, according to the wind load calculation method described in the embodiment of the present invention, the wind load of the lifting equipment under the same lifting weight (that is, under the current lifting weight) at different jib elevation angles can be obtained, and, by The calculated wind load of the lifting equipment at each jib elevation angle under the current hoisting weight and the preset maximum wind load that the lifting equipment can withstand under the jib attitude corresponding to the corresponding jib elevation angle Comparison is made to determine the safe luffing angle range corresponding to the jib of the lifting device under the current hoisting load.

Further, the wind load control device may also include a display module 43:

The display module 43 can be used to display the percentage of the current wind load to the maximum wind load that can be borne under the current jib attitude, and the safe luffing angle range corresponding to the jib of the lifting device under the current hoisting load.

Correspondingly, the processing module 42 can also be used to display the current wind load as a percentage of the maximum wind load that can be borne under the current jib posture according to the current wind load displayed by the display module 43, and the current lifting capacity of the lifting device. The safe luffing angle range corresponding to the boom controls the operation of the lifting equipment in a corresponding safe area.

Further, it should be noted that, in addition to being used to display the calculated percentage of the current wind load to the maximum wind load that can be borne under the current jib attitude, the display module 43 can also be used to The real-time change of the jib attitude of the equipment, the real-time display shows that the calculated wind load under the changed jib attitude occupies the preset maximum wind load that the lifting equipment can bear under the changed jib attitude The percentage of , which is not described in this embodiment of the present invention.

Further, in the embodiment of the present invention, the processing module 42 can also be used to compare the current wind speed of the boom head of the lifting device with the preset current jib attitude of the lifting device that can Compared with the maximum wind speed it can withstand, if it is determined that the current jib head wind speed of the lifting device is less than the maximum wind speed that the lifting device can withstand under the current jib attitude of the lifting device, it is determined that the lifting device can work safely , otherwise, it is determined that the lifting device cannot operate safely.

That is to say, in the embodiment of the present invention, similar to the prior art, the wind load control device can also use only the wind speed to control the hoisting operation accordingly. However, different from the prior art, in this In the embodiment of the invention, when the wind speed is used to control the hoisting operation, different wind speed reference values that meet the safety control can usually be set for different jib attitudes, so as to achieve The wind load of the equipment is quantitatively analyzed to improve the accuracy and safety of hoisting control.

Embodiment 3 of the present invention provides a wind load control device. In the technical solution described in Embodiment 3 of the present invention, the current jib attitude of the lifting device can be determined according to the current jib elevation angle of the lifting device, and combined with the Calculate the current wind load of the lifting equipment based on the current jib head wind speed, current hook position and current hoisting weight of the equipment, and compare the calculated current wind load with the maximum wind load that can be borne under the current jib attitude To determine whether the lifting equipment can operate safely, so as to judge the crane by setting a fixed wind speed reference value and comparing it with the wind speed of the jib head measured by the anemometer as described in the prior art Whether it can be compared with the way of hoisting operation, it can achieve the quantitative analysis of the wind load of the hoisting equipment according to different jib attitudes, so as to improve the accuracy and safety of hoisting control under the action of wind load, and, Since the accuracy and safety of hoisting control have been greatly improved, on this basis, the purpose of expanding the operating range of the hoisting equipment and improving the attendance rate (that is, the utilization rate) of the hoisting equipment can also be achieved. In addition, in the technical solution described in the third embodiment of the present invention, the influence of various factors such as the current jib elevation angle of the lifting equipment, the current wind speed at the head of the jib, the current hook position, and the current hoisting weight on the wind load can be comprehensively considered. , so that the accuracy of the hoisting control can be further improved compared to the prior art that only considers the influence of the factor of wind speed on the wind load. Furthermore, in the technical solution described in the third embodiment of the present invention, the anemometers and angles used to measure the current jib elevation angle, the current jib head wind speed, the current hook position, and the current hoisting weight of the lifting equipment, etc. Encoders, angle sensors, moment limiters, etc. are usually standard components in lifting equipment. Therefore, without adding any additional sensing equipment, the performance of the crane can be fully utilized.

While preferred embodiments of the invention have been described, additional changes and modifications to these embodiments can be made by those skilled in the art once the basic inventive concept is appreciated. Therefore, it is intended that the appended claims be construed to cover the preferred embodiment as well as all changes and modifications which fall within the scope of the invention.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and equivalent technologies thereof, the present invention also intends to include these modifications and variations.

Claims (19)

1. A wind load control system, characterized in that, comprising: Wind speed measuring device for measuring the wind speed of the current jib head of the lifting equipment; Hook position measuring device for measuring the current hook position of the lifting equipment; The jib elevation angle measuring device is used to measure the current jib elevation angle of the lifting equipment; The hoisting weight measuring device is used to measure the current hoisting weight of the lifting equipment; The wind load control device is used to determine the current jib attitude of the lifting device according to the current jib elevation angle of the lifting device and the jib combination information of the lifting device, and calculating the current wind load of the lifting device by the current jib attitude, the current wind speed of the boom head of the lifting device, the current hook position of the lifting device and the current hoisting weight of the lifting device, and Comparing the calculated current wind load with the preset maximum wind load that can be borne under the current jib attitude of the lifting device, if it is determined that the calculated current wind load is less than the current jib attitude that can be borne If the maximum wind load is exceeded, it is determined that the lifting device can operate safely, otherwise, it is determined that the lifting device cannot operate safely. 2. The wind load control system according to claim 1, wherein: The wind load control device is specifically configured to: The current hoisting weight of the equipment is calculated on the wind load of the current working state on the lifting equipment and the wind load on the items currently lifted by the lifting equipment, and the calculated load is applied to the lifting equipment. The sum of the wind load of the current working state on the equipment and the wind load acting on the items currently lifted by the lifting equipment is taken as the current wind load of the lifting equipment. 3. The wind load control system according to claim 2, wherein: The wind load control device is specifically used to use the first formula to calculate the current working state wind load acting on the lifting equipment and use the second formula to calculate the wind load acting on the lifting equipment currently lifted. load; Wherein, the first formula is _Pw =CPA, the _Pw is the current working state wind load acting on the lifting equipment, C is the set wind force coefficient, P is the current working state wind pressure, and A is the physical windward area of the lifting device perpendicular to the wind direction, and P=0.625V ₀ ² , where V ₀ is the current wind speed of the jib head of the lifting device; The second formula is P _wQ = 1.2P _h. A _Q , where P _wQ is the wind load acting on the items currently lifted by the lifting equipment, and P _h is the The ratio between the height of the item to be transported and the height of the current jib head of the lifting device is the wind pressure obtained after converting the wind pressure in the current working state, A _Q is the vertical Entity frontal area in the wind direction, wherein, the height of the item being hoisted by the lifting device is determined according to the current hook position of the lifting device, and the current jib head height of the lifting device is Determined according to the current jib attitude of the lifting equipment or the current jib elevation angle of the lifting equipment, the physical windward area of the lifting equipment that is currently lifted perpendicular to the wind direction is determined according to the It is determined by the current hoisting weight of the hoisting equipment or the entity windward area input by the outside world according to the state of the items being hoisted currently by the hoisting equipment. 4. The wind load control system according to claim 1, wherein: The wind load control device is further used to determine the wind speed according to the relationship between wind speed and height, and the current jib head height of the lifting equipment and the current jib head wind speed of the lifting equipment. The wind speed at the boom head corresponding to the jib of the lifting equipment at different jib elevation angles, combined with the position of the hook of the lifting equipment at the corresponding jib elevation angle and the current hoisting weight of the lifting equipment, calculate The wind load of the lifting device under different jib elevation angles under the current hoisting weight, and by combining the calculated wind load of the hoisting device under each jib elevation angle under the current hoisting weight with the preset, The lifting equipment is compared with the maximum wind load that the lifting equipment can withstand under the jib attitude corresponding to the corresponding jib elevation angle, to determine the safe luffing angle range corresponding to the jib of the lifting equipment under the current hoisting weight; Wherein, the current jib head height of the lifting device is determined according to the current jib attitude of the lifting device or the current jib elevation angle of the lifting device. 5. The wind load control system according to claim 4, wherein: The wind load control device is also used to display the percentage of the current wind load to the maximum wind load that can be borne under the current jib attitude, and the corresponding safety amplitude of the jib of the lifting equipment under the current hoisting load Angle range, and according to the percentage of the displayed current wind load to the maximum wind load that can be borne under the current jib attitude, and the safe luffing angle range corresponding to the jib of the lifting equipment under the current hoisting load, control The lifting equipment operates within the corresponding safety zone. 6. The wind load control system according to claim 1, wherein: The wind load control device is also used to compare the current wind speed of the jib head of the lifting equipment with the preset maximum wind speed that can be withstood under the current jib attitude of the lifting equipment. If the current wind speed of the boom head of the lifting device is less than the maximum wind speed that the lifting device can withstand under the current boom attitude of the lifting device, it is determined that the lifting device can work safely; otherwise, it is determined that the lifting device Unable to work safely. 7. A lifting device, characterized in that it comprises the wind load control system according to any one of claims 1-6. 8. A wind load control method, characterized in that, comprising: Obtain the current jib head wind speed, current hook position, current jib elevation angle and current hoisting weight of the lifting equipment; According to the acquired current jib elevation angle of the lifting equipment and the jib combination information of the lifting equipment, determine the current jib posture of the lifting equipment, and according to the acquired current jib attitude of the lifting equipment The jib attitude, the current wind speed of the jib head of the lifting device, the current hook position of the lifting device and the current hoisting weight of the lifting device calculate the current wind load of the lifting device, and Comparing the calculated current wind load with the preset maximum wind load that can be borne under the current jib attitude of the lifting device, if it is determined that the calculated current wind load is less than the maximum that can be borne under the current jib attitude If the wind load is low, it is determined that the lifting device can operate safely, otherwise, it is determined that the lifting device cannot operate safely. 9. The wind load control method according to claim 8, characterized in that, according to the acquired current boom attitude of the lifting equipment, the current boom head wind speed of the lifting equipment, the lifting equipment The current hook position of the equipment and the current hoisting weight of the lifting equipment are used to calculate the current wind load of the lifting equipment, including: According to the acquired current jib attitude of the lifting equipment, the wind speed of the current jib head of the lifting equipment, the current hook position of the lifting equipment and the current hoisting weight of the lifting equipment, the calculation function The wind load in the current working state on the lifting equipment, and the wind load acting on the objects currently lifted by the lifting equipment, and the calculated wind load in the current working state acting on the lifting equipment The current wind load of the lifting device is the sum of the load of the lifting device and the wind load acting on the item currently lifted by the lifting device. 10. The wind load control method according to claim 9, characterized in that, according to the acquired current jib attitude of the lifting equipment, the current jib head wind speed of the lifting equipment, the lifting equipment The current hook position of the equipment and the current hoisting weight of the lifting equipment calculate the current working state wind load acting on the lifting equipment and the wind load acting on the items currently lifted by the lifting equipment, include: Using the first formula to calculate the current working state wind load acting on the lifting device and using the second formula to calculate the wind load acting on the lifting device currently lifting items; Wherein, the first formula is _Pw =CPA, the _Pw is the current working state wind load acting on the lifting equipment, C is the set wind force coefficient, P is the current working state wind pressure, and A is the physical windward area of the lifting device perpendicular to the wind direction, and P=0.625V ₀ ² , where V ₀ is the current wind speed of the jib head of the lifting device; The second formula is P _wQ = 1.2P _h. A _Q , where P _wQ is the wind load acting on the items currently lifted by the lifting equipment, and P _h is the The ratio between the height of the item to be transported and the height of the current jib head of the lifting device is the wind pressure obtained after converting the wind pressure in the current working state, A _Q is the vertical Entity frontal area in the wind direction, wherein, the height of the item being hoisted by the lifting device is determined according to the current hook position of the lifting device, and the current jib head height of the lifting device is Determined according to the current jib attitude of the lifting equipment or the current jib elevation angle of the lifting equipment, the physical windward area of the lifting equipment that is currently lifted perpendicular to the wind direction is determined according to the It is determined by the current hoisting weight of the hoisting equipment or the entity windward area input by the outside world according to the state of the items being hoisted currently by the hoisting equipment. 11. The wind load control method according to claim 8, further comprising: According to the relationship between wind speed and height, and the current jib head height of the lifting device and the current boom head wind speed of the lifting device, it is determined that the jib of the lifting device is in a different jib position. The wind speed at the jib head corresponding to the elevation angle; and Combining the hook position of the lifting device at the corresponding jib elevation angle and the current hoisting weight of the hoisting device, calculating the wind load of the hoisting device at different jib elevation angles under the current hoisting weight; and, By combining the calculated wind load of the hoisting equipment at each jib elevation angle under the current hoisting load with the pre-set wind load that the hoisting equipment can bear under the jib attitude corresponding to the corresponding jib elevation angle The maximum wind load is compared to determine the safe luffing angle range corresponding to the jib of the lifting equipment under the current hoisting load; wherein, the current jib head height of the lifting equipment is based on the determined by the current jib attitude or the current jib elevation angle of the lifting device. 12. The wind load control method according to claim 11, further comprising: Display the percentage of the current wind load to the maximum wind load that can be borne under the current jib attitude, and the safe luffing angle range corresponding to the jib of the lifting device under the current hoisting weight; and According to the percentage of the displayed current wind load occupying the maximum wind load that can be borne under the current jib attitude, and the safe luffing angle range corresponding to the jib of the lifting equipment under the current hoisting load, the lifting is controlled The device operates within the corresponding safety zone. 13. The wind load control method according to claim 8, further comprising: Comparing the current wind speed of the boom head of the lifting device with the preset maximum wind speed that can be withstood under the current boom attitude of the lifting device; If it is determined that the current boom head wind speed of the lifting device is less than the maximum wind speed that the lifting device can withstand under the current boom attitude of the lifting device, it is determined that the lifting device can work safely; otherwise, it is determined that the Lifting equipment cannot work safely. 14. A wind load control device, characterized in that it comprises: The obtaining module is used to obtain the current wind speed at the head of the jib, the current position of the hook, the current elevation angle of the jib and the current hoisting weight of the lifting equipment; A processing module, configured to determine the current boom attitude of the lifting device according to the current jib elevation angle of the lifting device acquired by the acquisition module and the jib combination information of the lifting device, and The acquisition module acquires the current jib attitude of the lifting device, the current wind speed of the boom head of the lifting device, the current hook position of the lifting device, and the current hoisting weight of the lifting device Calculate the current wind load of the lifting device, and compare the calculated current wind load with the preset maximum wind load that can be borne under the current jib attitude of the lifting device, if it is determined that the calculated current If the wind load is less than the maximum wind load that can be withstood under the current attitude of the jib, it is determined that the lifting device can work safely; otherwise, it is determined that the lifting device cannot work safely. 15. The wind load control device according to claim 14, wherein: The processing module is specifically configured to obtain the current jib attitude of the lifting device, the current wind speed of the boom head of the lifting device, and the current hook position of the lifting device obtained by the acquisition module. And the current hoisting weight of the lifting equipment calculates the current working state wind load acting on the lifting equipment, and the wind load acting on the items currently lifted by the lifting equipment, and the calculated effect The sum of the wind load of the current working state on the lifting device and the wind load acting on the objects currently lifted by the lifting device is taken as the current wind load of the lifting device. 16. The wind load control device according to claim 15, wherein: The processing module is specifically configured to use the first formula to calculate the current working state wind load acting on the lifting device and use the second formula to calculate the wind load acting on the lifting device currently being lifted; Wherein, the first formula is _Pw =CPA, the _Pw is the current working state wind load acting on the lifting equipment, C is the set wind force coefficient, P is the current working state wind pressure, and A is the physical windward area of the lifting device perpendicular to the wind direction, and P=0.625V ₀ ² , where V ₀ is the current wind speed of the jib head of the lifting device; The second formula is P _wQ = 1.2P _h. A _Q , where P _wQ is the wind load acting on the items currently lifted by the lifting equipment, and P _h is the The ratio between the height of the item to be transported and the height of the current jib head of the lifting device is the wind pressure obtained after converting the wind pressure in the current working state, A _Q is the vertical Entity frontal area in the wind direction, wherein, the height of the item being hoisted by the lifting device is determined according to the current hook position of the lifting device, and the current jib head height of the lifting device is Determined according to the current jib attitude of the lifting equipment or the current jib elevation angle of the lifting equipment, the physical windward area of the lifting equipment that is currently lifted perpendicular to the wind direction is determined according to the It is determined by the current hoisting weight of the hoisting equipment or the entity windward area input by the outside world according to the state of the items being hoisted currently by the hoisting equipment. 17. The wind load control device according to claim 14, wherein: The processing module is further configured to determine the lifting height according to the correlation between wind speed and height, and the current jib head height of the lifting equipment and the current jib head wind speed of the lifting equipment. The wind speed at the head of the jib corresponding to the jib of the equipment at different jib elevation angles; combined with the hook position of the lifting equipment at the corresponding jib elevation angle and the current hoisting weight of the hoisting equipment, the current hoisting weight is calculated. Resetting the wind load of the lifting device at different jib elevation angles; The maximum wind load that the lifting equipment can withstand under the jib attitude corresponding to the corresponding jib elevation angle is compared to determine the safe luffing angle range corresponding to the jib of the lifting equipment under the current hoisting weight; wherein, The current jib head height of the lifting device is determined according to the current jib attitude of the lifting device or the current jib elevation angle of the lifting device. 18. The wind load control device according to claim 17, further comprising a display module: The display module is used to display the percentage of the current wind load to the maximum wind load that can be borne under the current jib attitude, and the safe luffing angle range corresponding to the jib of the lifting device under the current hoisting weight; The processing module is further configured to display the current wind load displayed by the display module as a percentage of the maximum wind load that can be borne under the current jib attitude, and the corresponding weight of the jib of the lifting device under the current hoisting weight. safe range of luffing angles, and control the operation of the lifting equipment in the corresponding safe area. 19. The wind load control device according to claim 14, wherein: The processing module is also used to compare the current wind speed of the boom head of the lifting device with the preset maximum wind speed that can be withstood under the current boom attitude of the lifting device; If the current wind speed of the jib head of the heavy equipment is less than the maximum wind speed that the lifting equipment can withstand under the current jib attitude, it is determined that the lifting equipment can work safely; otherwise, it is determined that the lifting equipment cannot be safely operated. Operation.