CN115478731B - Intelligent balancing suspension pole system capable of resisting strong wind and use method - Google Patents
Intelligent balancing suspension pole system capable of resisting strong wind and use method Download PDFInfo
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- CN115478731B CN115478731B CN202211247000.2A CN202211247000A CN115478731B CN 115478731 B CN115478731 B CN 115478731B CN 202211247000 A CN202211247000 A CN 202211247000A CN 115478731 B CN115478731 B CN 115478731B
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- 239000000725 suspension Substances 0.000 title claims abstract description 117
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000000463 material Substances 0.000 claims description 26
- 230000005540 biological transmission Effects 0.000 claims description 18
- 238000010586 diagram Methods 0.000 claims description 7
- 230000009471 action Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 238000005096 rolling process Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/34—Arrangements for erecting or lowering towers, masts, poles, chimney stacks, or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
- B66D1/40—Control devices
- B66D1/48—Control devices automatic
- B66D1/50—Control devices automatic for maintaining predetermined rope, cable, or chain tension, e.g. in ropes or cables for towing craft, in chains for anchors; Warping or mooring winch-cable tension control
Abstract
An intelligent balancing suspension pole-holding system capable of resisting strong wind and a use method thereof are provided, wherein the system comprises a pole; a lifting rope; a top circular pulley track provided with a plurality of pulleys; a waist round pulley track provided with a plurality of pulleys; a waist suspension diverting pulley track provided with a plurality of pulleys; a bottom suspension diverting pulley rail provided with a plurality of pulleys; the control cable comprises a plurality of control cables, wherein one end of each control cable is fixed on a top circular pulley rail and sequentially bypasses a waist suspension steering pulley rail and a bottom suspension steering pulley rail; the data acquisition system is used for acquiring data of the pole holding system; the intelligent cable force adjusting system is connected to the other ends of the control cables and used for controlling the tension of the control cables and the sliding of the control pulleys on the corresponding tracks. The intelligent balancing system can realize intelligent balancing during hoisting, and meanwhile, the holding pole is kept stable under the action of strong wind.
Description
Technical Field
The invention relates to the field of electric power erection construction, in particular to an intelligent balancing suspension pole system capable of resisting strong wind and a use method thereof.
Background
With the continuous development of the power grid in China, the construction requirements of the ultra-high voltage power transmission towers are increasingly increased, and meanwhile, the heights of the towers are gradually increased. After more and more large spanning towers appear, the requirements of tower assembly on the used poles are also higher and higher. The internal suspension external stay wire holding pole is used as special lifting equipment, and has the characteristics of mature process, simple operation of construction equipment, convenient assembly, low cost and the like. Therefore, in the construction process of the power transmission line, the inner suspension outer stay wire holding pole is often adopted for the decomposition and assembly of the power transmission tower.
The fixing mode of the internal suspension external stay wire holding pole is that the upper section is connected with the ground through four external stay wires to form an anchor, and the lower end is connected with the established main material of the power transmission tower through four supporting ropes. When the holding pole is lifted, a lifting rope is required to bypass a pulley block at the head of the holding pole to be connected with a winch on the ground for lifting the tower, and the problem that the holding pole is stressed unevenly easily occurs during single-side lifting. When the tower materials are symmetrically lifted on both sides, capsizing force is generated due to the fact that loading, unloading, lifting angles are asynchronous, and the like, so that the holding pole is inclined, and engineering accidents are easy to cause.
In addition, the internal suspension outer stay wire holding pole belongs to a high-rise structure, has a larger slenderness ratio, simultaneously two ends of the internal suspension outer stay wire holding pole are restrained to be similar to a hinged type, the influence of wind load is larger in the process of high-altitude operation, and particularly, the internal suspension outer stay wire holding pole is easy to topple and collapse under the action of strong wind, so that the personal safety of constructors is threatened, and huge economic loss is caused. Therefore, what is needed is an intelligent balancing suspension pole system capable of resisting strong wind, which ensures that the pole is stressed and balanced and does not incline during hoisting, and meanwhile, the pole can be ensured to have enough stability to resist wind load during strong wind attack, so that the safety of electric power construction is ensured.
Disclosure of Invention
Technical problems: in order to solve the problems that the inner suspension outer stay wire pole is easy to topple over during hoisting and the stability is poor during strong wind attack, an intelligent balancing suspension pole system capable of resisting strong wind and a using method are designed, so that the defect that an existing suspension pole is unstable is overcome, and transverse tension can be intelligently balanced through a control system during hoisting of tower materials, and balance of the pole is maintained. Meanwhile, when strong wind is coming, the balance wind load of the inhaul cable is adjusted and controlled in real time through the monitoring system and the control system, so that intelligent wind resistance is realized, and the stability and safety of the suspension holding pole are ensured.
The technical scheme is as follows: the invention discloses an intelligent balancing suspension pole system capable of resisting strong wind, which comprises the following components:
Holding pole;
the lifting rope bypasses the top of the holding pole and is used for lifting materials;
The top round pulley rail is arranged at the top end of the holding pole, and a plurality of pulleys are slidably arranged on the top round pulley rail;
The waist round pulley rail is arranged in the middle of the holding pole, and a plurality of pulleys are slidably arranged on the waist round pulley rail;
The waist suspension diverting pulley rail is arranged in the middle of the holding pole and below the waist round pulley rail, and a plurality of pulleys are slidably arranged on the waist suspension diverting pulley rail;
the bottom suspension diverting pulley rail is arranged at the bottom of the holding pole, and a plurality of pulleys are slidably arranged on the bottom suspension diverting pulley rail;
One end of each control cable is fixed on the pulley of the circular pulley rail at the top and sequentially bypasses the pulley of the suspended diverting pulley rail at the waist and the pulley of the suspended diverting pulley rail at the bottom, and the other ends of the control cables are fixed on the pulley of the circular pulley rail at the waist and sequentially bypass the pulley of the suspended diverting pulley rail at the waist and the pulley of the suspended diverting pulley rail at the bottom;
the data acquisition system is used for acquiring data of the pole holding system;
The intelligent cable force adjusting system is connected to the other ends of the control cables and used for controlling the pulling force of the control cables and the sliding of the control pulleys on the corresponding tracks according to the data acquired by the data acquisition system.
Further, the top circular pulley track and the waist circular pulley track are respectively fixed on the head part and the waist part of the holding pole, the waist suspension diverting pulley track is used for being pulled and connected on the established main material of the power transmission tower through stranded wires, and the bottom suspension diverting pulley track is used for being pulled and connected on a basic ground anchor of the main material of the power transmission tower through a track external stay wire.
Further, but strong wind's intelligent balancing suspension pole system still includes:
The bottom lifting rope suspension steering track is arranged on the inner side of the bottom suspension steering pulley track, one end of the lifting rope sequentially bypasses the pulley of the top circular pulley track, the pulley of the waist circular pulley track, the pulley of the bottom lifting rope suspension steering track is used for being connected to a winch, and the other end of the lifting rope is used for being connected with materials.
Further, the bottom suspension diverting pulley track is coaxial with the bottom hoisting rope suspension diverting track, and the radius of the bottom suspension diverting pulley track is larger than that of the bottom hoisting rope suspension diverting track;
the bottom lifting rope suspension steering track is connected to the bottom suspension steering pulley track through a track inner pull wire, and the bottom suspension steering pulley track is fixed on a power transmission tower foundation ground anchor through a track outer pull wire.
Further, the radius of the bottom hoisting rope suspension diverting pulley track is smaller than that of the waist round pulley track, and the radius of the bottom suspension diverting pulley track is smaller than that of the waist suspension diverting pulley track.
Further, the data acquisition system includes:
The tension inclination sensors are respectively arranged on the lifting rope and the control inhaul cables and are used for detecting the tension and inclination of the lifting rope and the control inhaul cables;
The wind speed and direction sensors are respectively arranged at the top and the middle of the holding pole and are used for detecting wind speed and direction;
The plurality of locating devices are respectively arranged on the plurality of pulleys and are used for detecting the positions of the pulleys.
The invention also provides a use method of the intelligent balancing suspension pole system capable of resisting strong wind, which comprises the following steps:
S1: hoisting materials through a holding pole;
s2: through data acquisition system, gather the data of pole-holding system, include: pulling force Fl of the lifting rope and vertical inclination angle alpha; controlling the pulling force Fk of the inhaul cable, the vertical inclination angle alpha and the positions of the pulleys;
s3: calculating the optimal position of the pulley and controlling the balancing tension of the inhaul cable according to the acquired data of the pole holding system through the intelligent cable force adjusting system;
S4: the intelligent cable force adjusting system controls the pulley to move and controls the tension of the control cable, so that the holding pole is in a stress balance state.
Further, step S3 includes:
S31: reading in the pulling force Fk of the control cable, the pulling force Fl of the lifting rope and the vertical inclination angle alpha of each of the control cable and the lifting rope, and obtaining the maximum lifting pulling force Flmax;
s32: calculating the horizontal stress state of the top circular pulley track;
s33: establishing a rectangular coordinate system by taking the vector direction of the maximum hoisting tension Flmax as the positive direction of the x-axis, and performing a horizontal force diagram;
S34: loosening a control cable in the same direction as Flmax;
s35: the resultant force of the x and y axes is balanced, the standard deviation of Fk is used as a constraint condition, 2 DEG is used as a step length, and the cable force of the control cable in each azimuth is calculated in an iterative mode;
S36: calculating a scheme that the Fk mean value of the tensile force is minimum and the standard deviation meets the requirement;
S37: and outputting the coordinates of the cable force Fk and the pulley.
The invention also provides a strong wind resistance method of the intelligent balancing suspension pole system, which comprises the following steps:
s101: the data acquisition system is used for acquiring data of the pole holding system, including wind direction and wind speed at the top and the waist of the pole holding system, and controlling the tension and the inclination angle of the inhaul cable;
S102: judging whether wind load exceeds limit according to the collected data by the intelligent cable force adjusting system, if so, calculating the optimal position of the pulley and controlling the balancing tension of the inhaul cable by the intelligent cable force adjusting system according to the collected data of the pole holding system;
S104: the intelligent cable force adjusting system controls the pulley to move and controls the tension of the control cable, so that the holding pole is in a stress balance state.
Further, step S102 includes:
s1021: reading in the pulling force Fk of a control inhaul cable and controlling the vertical inclination angle alpha of the inhaul cable;
S1022: calculating the horizontal stress state of the top circular pulley track and the waist circular pulley track;
S1023: converting wind speed into wind load, establishing a coordinate system by taking a horizontal direction as an x-axis positive direction, and making a horizontal diagram of a top circular pulley track and a waist circular pulley track;
s1024: releasing the top and waist control cables in the wind load vector region;
S1025: the resultant force of the x and y axes is balanced, the standard deviation of Fk is used as a constraint condition, 2 DEG is used as a step length, and the cable force of the control cable in each azimuth is calculated in an iterative mode;
S1026: calculating a scheme that the Fk mean value of the tensile force is minimum and the standard deviation meets the requirement;
s1027: and outputting the coordinates of the cable force Fk and the pulley.
The beneficial effects are that: according to the invention, 8 control inhaul cables are additionally arranged on the existing inner suspension outer stay wire holding pole, so that the intelligent cable force adjusting system connected with the ground bypasses a steering track connected to a main material of a power transmission tower in a pulling mode. The intelligent counterweight and the intelligent wind resistance are realized by matching with a data acquisition system and an intelligent control system. The system can automatically obtain an optimal counterweight scheme by utilizing an algorithm when the tower material is hoisted on one side or two sides simultaneously, and finish balancing work by utilizing the cable force adjusting system, so that the balance stability of the holding pole in the hoisting process is ensured. When strong wind is coming, the intelligent control system can calculate the optimal wind resistance scheme through the obtained wind speed and wind direction data, intelligent wind resistance is realized through 8 control inhaul cables, and the pole is prevented from overturning under the action of strong wind. In addition, 360 all-round multiple side hoists of angle can also be realized to this system, need not to rotate the pole body, can carry out the hoist and mount operation of four groups of tower materials simultaneously at most, promotes the efficiency of construction greatly.
Drawings
Fig. 1 is a schematic general structural diagram of an intelligent balancing suspension pole system capable of resisting strong wind according to an embodiment of the invention;
FIG. 2 is a detailed schematic view of a pole head of the intelligent balancing suspension pole system of FIG. 1 that is resistant to strong winds;
FIG. 3 is a schematic illustration of a waist feature of the intelligent balancing suspension pole system of FIG. 1 that is resistant to strong winds;
FIG. 4 is a schematic view of a lumbar suspension steering track of the intelligent balancing suspension pole system of FIG. 1 that is resistant to strong winds;
FIG. 5 is a schematic view of a bottom suspension steering rail of the intelligent balancing suspension pole system of FIG. 1 that is resistant to strong winds;
FIG. 6 is a flow chart of an intelligent counterweight of an intelligent balancing suspension pole system capable of resisting strong wind according to an embodiment of the invention;
FIG. 7 is a flow chart of intelligent wind resistance of an intelligent balancing suspension pole system capable of resisting strong wind according to an embodiment of the invention;
Fig. 8 is a flowchart of the operation of the intelligent counterweight and wind-resistant intelligent cable force adjustment system of the intelligent balancing suspension pole system capable of resisting strong wind according to the embodiment of the invention.
In the figure: 1. a hugging head for fixing the round pulley rail at the top; 2. a lifting rope; 3. the waist of the holding pole of the round pulley rail of the fixed waist; 4. the top of the holding pole controls a guy cable; 5. a pole waist control inhaul cable; 6. a waist suspension diverting pulley rail; 7. a main material of the power transmission tower; 8. a ground anchor of a foundation of the power transmission tower; 9. an intelligent cable force adjusting system; 10. a bottom suspended diverting pulley rail; 11. a support rope; 12, 19, wind speed and wind direction sensors A, B; 13. an outer pull wire; 14. a top circular pulley track; 15, 21, electric pulleys; 16, 17, 18, tension tilt sensors a, B, C; 20. a waist circular pulley track; 22, 26, control cable diverting pulleys; 23. suspending the steel strand; 24. a hoisting rope electric diverting pulley; 25. the bottom hoisting rope suspends the steering track; 27. a stay wire in the track; 28. and (5) pulling wires outside the track.
Detailed Description
Referring to fig. 1-5, an embodiment of the present application provides an intelligent balancing suspension pole system capable of resisting strong wind, including:
Holding pole;
a lifting rope 2 bypasses the top of the holding pole and is used for lifting materials;
The top round pulley rail 14 is arranged at the top end of the holding pole, and a plurality of pulleys 15 are slidably arranged on the top round pulley rail 14;
the waist round pulley rail 20 is arranged in the middle of the holding pole, and a plurality of pulleys 21 are slidably arranged on the waist round pulley rail 20;
A waist suspension diverting pulley track 6 arranged in the middle of the holding pole and below the waist round pulley track 20, wherein a plurality of pulleys 22 are slidably arranged on the waist suspension diverting pulley track 6;
a bottom suspension diverting pulley rail 10 arranged at the bottom of the holding pole, wherein a plurality of pulleys 26 are slidably arranged on the bottom suspension diverting pulley rail 10;
a plurality of control cables 4, 5, wherein one end of a part of the control cables 4 is fixed on the pulley 15 of the top circular pulley rail 14 and sequentially passes around the pulley 22 of the waist suspension diverting pulley rail 6 and the pulley 26 of the bottom suspension diverting pulley rail 10, and the other part of the control cables 5 is fixed on the pulley 21 of the waist circular pulley rail 20 and sequentially passes around the pulley 22 of the waist suspension diverting pulley rail 6 and the pulley 26 of the bottom suspension diverting pulley rail 10;
the data acquisition system is used for acquiring data of the pole holding system;
the intelligent cable force adjusting system 9 is connected to the other ends of the control cables 4 and 5 and is used for controlling the tension of the control cables 4 and 5 and controlling the pulleys 15, 21, 22 and 26 to slide on the corresponding tracks 14, 20, 6 and 10 according to the data acquired by the data acquisition system.
The pull force is generated on the top round pulley track 14 or the waist round pulley track 20 by the control inhaul cables 4 and 5, and when the lifting rope 2 is lifted, the pull force and the angle of the control inhaul cables 4 and 5 are adjusted through the intelligent rope force adjusting system 9 to balance, so that the holding pole is stressed and balanced.
In order to avoid excessive vertical forces on the pole body by the control cables 4, 5 when balancing horizontal forces, steering is provided by means of the waist suspended diverting pulley track 6 and the bottom suspended diverting pulley track 10.
In this embodiment, four pulleys are provided in each pulley track 14, 20, 6, 10; the number of control cables 4, 5 is eight, four of which are connected to the top circular pulley track 14 and the other four are connected to the waist circular pulley track 20. It will be appreciated that in other embodiments the number of pulleys 15, 21, 22, 26 and control cables 4, 5 may be modified as desired.
The plurality of control cables 4, 5 comprise a pole top control cable 4 and a pole waist control cable 5. The pole top control cable 4 is a pulley 15 fixed to the top circular pulley track 14, and the pole waist control cable 5 is a pulley 21 fixed to the waist circular pulley track 20.
The pulleys 15, 21, 22, 26 are slidable within the corresponding pulley tracks 14, 20, 6, 10, and the pulleys 15, 21, 22, 26 can be controlled to move to a set position by the intelligent cable force adjustment system 9.
The pulleys 15, 21, 22, 26 comprise an electric pulley 21, a control cable diverting pulley 22, 26, a hoisting rope electric diverting pulley 24.
The electric pulley 21 is arranged on the top round pulley track 14 and is fixedly connected with the lifting rope 2 and the top control inhaul cable 4 at the same time;
The control cable diverting pulley 22 is arranged on the waist suspension diverting pulley track 6, and the top control cable 4 and the holding pole waist control cable 5 simultaneously bypass the control cable diverting pulley 22.
The control cable diverting pulley 26 is arranged on the bottom suspension diverting pulley rail 10, and the top control cable 4 and the holding pole waist control cable 5 simultaneously bypass the control cable diverting pulley 26.
The pulleys 15, 21, 22, 26 are divided into four groups A, B, C, D, each group of pulley blocks comprises four pulleys connected with the same control cable 4,5 on the four tracks 14, 20, 6, 10, and the pulleys in the same group keep the same angular velocity to move so as to prevent the control cable 4,5 from tilting. Meanwhile, the maximum moving angle range of each group of pulley blocks is 90 degrees, so that collision between the control inhaul cables 4 and 5 and the supporting ropes 11 is prevented.
The intelligent cable force adjusting system 9 can obtain the optimal pulley block position and control the cable force of the inhaul cable according to the obtained external force, the inclination angle and the pulley block initial position data and the algorithm.
Based on the setting, under the condition that the vertical bearing capacity of the holding pole meets the requirement, multiple groups of hoisting work can be carried out simultaneously, such as hoisting of some small tower materials, and simultaneous hoisting in 4 directions can be carried out.
In the intelligent leveling, it should be noted that the intelligent cable force adjusting system 9 cannot change the position of the pulley block for hoisting the tower material, the intelligent counterweight should be performed through the non-hoisting pulley block, and if the four pulley blocks are all in a working state, the balancing is performed completely by adjusting the cable force of the control cables 4 and 5.
When assembling large-span iron tower, when the pole size is longer, there is certain deviation in the wind speed of pole top and waist, so set up control cable 4, 5 respectively at pole top and waist and accomplish more meticulous control trim, when strong wind is assailed, only exert the restraint with the bottom at the top simultaneously and fix inadequately stable, add four control cables 5 at the waist and can improve the anti-wind stability of pole.
Referring to fig. 2, the top circular pulley track 14 is generally circular or cylindrical in configuration. The outer peripheral surface of the top circular pulley track 14 is provided with a horizontal annular chute.
The pulley 15 includes a slider and a roller. One end of the sliding piece is slidably arranged on the annular chute. The rolling piece is rotatably arranged at one end of the sliding piece far away from the annular chute.
A driving device is fixed in the sliding piece to drive the sliding piece to move in the annular sliding groove. The driving device is controlled to move by the intelligent cable force adjusting system 9.
The construction of the waist round pulley track 20, the waist floating diverting pulley track 6, the bottom floating diverting pulley track 10 is substantially the same as the top round pulley track 14.
The difference is that: the annular chute of the waist suspension diverting pulley track 6 is arranged on the inner peripheral wall thereof; an annular chute of the bottom suspended diverting pulley rail 10 is provided in its top wall. The pulley 22 of the lumbar suspension diverting pulley rail 6 comprises a slider and two rollers. The two rolling elements are respectively and rotatably arranged on the sliding element. The two rolling parts are respectively connected with a holding pole top control inhaul cable 4 and a holding pole waist control inhaul cable 5.
The top circular pulley rail 14 and the waist circular pulley rail 20 are respectively fixed on the head part and the waist part of the holding pole, the waist suspension diverting pulley rail 6 is used for being pulled and connected on the established main material 7 of the power transmission tower through stranded wires 23, and the bottom suspension diverting pulley rail 10 is used for being pulled and connected on the basic ground anchor 8 of the main material of the power transmission tower through a rail outer stay wire 28.
Can resist strong wind's intelligent balancing suspension pole-holding system still includes:
The bottom lifting rope suspension steering rail 25 is arranged on the inner side of the bottom suspension steering pulley rail 10, one end of the lifting rope 2 sequentially bypasses the pulley 15 of the top circular pulley rail 14, the pulley 21 of the waist circular pulley rail 20, the pulley 24 of the bottom lifting rope suspension steering rail 25 is connected to a winch (not shown), and the other end of the lifting rope is used for connecting materials.
The hoisting rope 2 electric diverting pulley 24 is arranged at the bottom hoisting rope suspension diverting rail 25, around which hoisting rope electric diverting pulley 24 the hoisting rope 2 passes.
The bottom suspension diverting pulley rail 10 is coaxial with the bottom hoist rope suspension diverting rail 25, the radius of the bottom suspension diverting pulley rail 10 being larger than the bottom hoist rope suspension diverting rail 25;
The bottom hoisting rope suspension diverting rail 25 is connected to the bottom suspension diverting pulley rail 10 by an inner rail stay 27, and the bottom suspension diverting pulley rail 10 is fixed to the transmission tower foundation ground anchor 8 by an outer rail stay 28.
The bottom hoisting rope suspending diverting pulley track 25 has a smaller radius than the waist circular pulley track 20 and the bottom suspending diverting pulley track 10 has a smaller radius than the waist suspending diverting pulley track 6.
This arrangement prevents the control cables 4, 5 and the hoisting ropes 2 from derailing.
The data acquisition system comprises:
A plurality of tension inclination sensors 18 respectively arranged on the lifting rope and the plurality of control inhaul cables 4 and 5 and used for detecting the tension and inclination angles of the lifting rope and the control inhaul cables 4 and 5;
the wind speed and direction sensors 19 are respectively arranged at the top and the middle of the holding pole and are used for detecting wind speed and direction;
A plurality of positioning devices (not shown) are respectively provided on the plurality of pulleys 15, 21, 22, 26 for detecting the positions of the pulleys 15, 21, 22, 26.
In this embodiment, the optimal scheme of the tension and the pulley position is calculated by the intelligent control system, and the specific adjustment is performed by the intelligent cable force adjustment system, so it can be understood that the functions can be integrated into the intelligent cable force adjustment system, and the calculation and adjustment can be completed by the intelligent cable force adjustment system.
In order to realize intelligent balancing and intelligent wind resistance, the whole set of device comprises a data acquisition system, an intelligent control system and an intelligent cable force adjusting system. The data acquisition system comprises a lifting rope 2, tension inclination sensors 18 on control inhaul cables 4 and 5, wind speed and wind direction sensors 19 at the top and the waist of the holding pole and positioning devices of all pulley blocks. When the tower material is hoisted by the pole, the tension and inclination sensor 18 can transmit the tension and inclination of the hoisting rope 2 and the control inhaul cables 4 and 5 back to the central control system, the intelligent control system calculates the optimal balancing scheme, the non-hoisting pulley block is controlled to move to a designated position, and the rope force of the control inhaul cable is adjusted in real time by controlling the intelligent rope force control system 9. The wind force wind direction sensor 19 of the head and waist of the holding pole is responsible for collecting real-time wind field data around the holding pole and transmitting the data back to the intelligent control system, when the wind speed exceeds the limit value, the intelligent control system calculates the corresponding wind load and the least adverse working condition according to the collected wind field data, obtains the optimal control position and the control cable force of the control cables 4 and 5, and the control pulley block and the intelligent cable force adjusting system adjust the control cables to the corresponding positions and the pulling force and adjust the wind resistance scheme in real time according to the change of the wind field.
Referring to fig. 6-8, the embodiment of the application further provides a method for using the intelligent balancing suspension pole system capable of resisting strong wind, which comprises the following steps:
S1: hoisting materials through a holding pole;
S2: through data acquisition system, gather the data of pole-holding system, include: the pulling force Fl and the vertical tilt angle α of the lifting rope 2; controlling the pulling force Fk, vertical inclination angle alpha and the positions of the pulleys 15, 21, 22 and 26 of the inhaul cables 4 and 5;
S3: calculating the optimal positions of the pulleys 15, 21, 22 and 26 according to the acquired data of the pole holding system through the intelligent cable force adjusting system 9, and controlling the trimming tension of the inhaul cables 4 and 5;
S4: the intelligent cable force adjusting system 9 controls the pulleys 15, 21, 22 and 26 to move and controls the pulling force of the control cables 4 and 5, so that the holding pole is in a stress balance state.
The step S3 comprises the following steps:
S31: reading the pulling force Fk of the control inhaul cables 4 and 5, the pulling force Fl of the lifting rope 2 and the vertical inclination angle alpha of each of the control inhaul cables 4 and 5 and the lifting rope 2, and obtaining the maximum lifting pulling force Flmax;
s32: calculating the horizontal stress state of the top circular pulley track 14;
s33: establishing a rectangular coordinate system by taking the vector direction of the maximum hoisting tension Flmax as the positive direction of the x-axis, and performing a horizontal force diagram;
S34: loosening a control cable in the same direction as Flmax;
s35: the resultant force of the x and y axes is balanced, the standard deviation of Fk is used as a constraint condition, 2 DEG is used as a step length, and the cable force of the control cable in each azimuth is calculated in an iterative mode;
S36: calculating a scheme that the Fk mean value of the tensile force is minimum and the standard deviation meets the requirement;
S37: and outputting the coordinates of the cable force Fk and the pulley.
In step S31, the pulling forces Fk of the control cables 4 and 5, the pulling force Fl of the lifting rope 2, and the vertical inclination angles α of the control cables 4 and 5 and the lifting rope 2 can be obtained by the corresponding pulling force inclination angle sensors 18, and the maximum lifting pulling force Flmax is preset data.
In step S32, the horizontal stress state of the top circular pulley track 14 can be calculated by the following formula:
Fsinα 。
The embodiment of the application also provides a strong wind resistance method of the intelligent balancing suspension pole system, which comprises the following steps:
s101: the data acquisition system is used for acquiring data of the pole holding system, including wind direction and wind speed at the top and the waist of the pole holding system, and controlling the tension and the inclination angle of the inhaul cable;
S102: judging whether wind load exceeds limit according to the collected data through the intelligent cable force adjusting system 9, if so, calculating the optimal positions of the pulleys 15, 21, 22 and 26 and controlling balancing tension of the inhaul cables 4 and 5 through the intelligent cable force adjusting system 9 according to the collected data of the pole holding system;
s104: the intelligent cable force adjusting system 9 controls the pulleys 15, 21, 22 and 26 to move and controls the pulling force of the control cables 4 and 5, so that the holding pole is in a stress balance state.
Step S102 includes:
s1021: reading in the tensile force Fk of the control inhaul cables 4 and 5, and controlling the vertical inclination angle alpha of the inhaul cables 4 and 5;
S1022: calculating the horizontal stress state of the top circular pulley rail 14 and the waist circular pulley rail 20;
S1023: converting wind speed into wind load, establishing a coordinate system by taking a horizontal direction (such as the north direction) as the positive direction of the x-axis, and making a horizontal force diagram of the top circular pulley track 14 and the waist circular pulley track 20;
s1024: releasing the top and waist control cables 4, 5 in the region of the wind load vector;
s1025: the resultant force of the x and y axes is balanced, the standard deviation of Fk is used as a constraint condition, 2 DEG is used as a step length, and the forces of the control inhaul cables 4 and 5 in each azimuth are calculated in an iterative mode;
S1026: calculating a scheme that the Fk mean value of the tensile force is minimum and the standard deviation meets the requirement;
s1027: the coordinates of the pulleys 15, 21, 22, 26 are output.
In at least one embodiment, after step S104, step S102 is further performed again.
Step S102 further includes: whether the wind load exceeds the limit is judged by the intelligent cable force adjusting system 9 according to the collected data, if not, the control cables 4 and 5 are loosened to proper pulling force, and the pulleys 15, 21, 22 and 26 are reset.
When the wind force gradually subsides, the wind load drops, and the control cables 4 and 5 and the pulleys 15, 21, 22 and 26 are reset.
The embodiment of the application also provides an assembly method of the intelligent balancing suspension pole system capable of resisting strong wind, which comprises the following steps:
After the pole assembly is completed, the bottom suspension steering rail 10 is pulled on the ground anchor 8 of the power transmission tower, when the pole is lifted to a certain height, the waist suspension steering rail 6 is pulled on the main material of the power transmission tower, when the rail is stable, one ends of 8 control cables 4 and 5 are respectively connected to the central shafts of eight groups of electric pulleys 15 and 21 on the top circular pulley rail 14 and the waist circular pulley rail 20, after the fixation is completed, the 8 control cables 4 and 5 are steered twice through the waist suspension steering pulley rail 6 and the electric steering pulleys 22 and 26 on the bottom suspension steering rail 10, and the intelligent cable force adjusting system 9 is connected to the ground.
After the control system is installed, as shown in fig. 2, 3 and 5, the lifting rope 2 is passed around the pulleys 15 of the top circular pulley track 14 and the pulleys 21 of the waist circular pulley track 20.
The lifting rope 2 is prevented from derailing and is connected to the intelligent rope force adjusting system 9 by means of diverting pulleys 24 on a bottom lifting rope suspended diverting rail 25. Simultaneously, the tension inclination sensor A16 on the lifting rope 2 and the tension inclination sensors B, C and 18 on the control inhaul cable are ensured to be firmly fixed and work normally before lifting, and meanwhile, the positioning devices inside the pulleys 15, 21, 22 and 26 are calibrated, so that the transmitted data are ensured to be accurate. During hoisting, the sensor transmits the pulling force and the inclination angle data of the hoisting 2 rope and the control inhaul cables 4 and 5 to the intelligent control system, and the computer obtains an optimal balancing scheme capable of balancing the holding pole by utilizing an algorithm by combining the initial positions of the pulleys 15, 21, 22 and 26, controls the pulleys 15, 21, 22 and 26 to move to a designated position, and compensates the pulling force of the control inhaul cables 4 and 5 through the intelligent rope force adjusting system 9, so that the holding pole is stressed and balanced. A specific intelligent balancing flow is shown in fig. 6.
In the process of lifting the tower, the sensor transmits real-time data back to the intelligent control system, and the system calculates and compensates the tension of the control inhaul cable in real time until the lifting is completed. A special person at the construction site is responsible for monitoring the working conditions of the site control inhaul cables 4 and 5 and the pulleys 15, 21, 22 and 26, so that collision and winding among ropes are avoided.
As shown in fig. 2-5, each circular track 14, 20, 6, 10 is provided with 4 pulleys 15, 21, 22, 26, so as to ensure that the inclination and winding of the control guy cable occur in the running process of the system, the maximum movement angle of the pulleys on the same track is 90 degrees, and meanwhile, pulley blocks connected with the same guy cable on different tracks are ensured to rotate at the same angular speed, so that the system safety in the adjusting process is ensured.
The foregoing is merely a preferred example of the present invention, and those skilled in the art can make appropriate changes and modifications to the embodiments in light of the disclosure herein. The invention is not limited to the above-described embodiments, but rather, changes and modifications are intended to be included within the scope of the appended claims, and the terminology used herein is for the convenience of description only and is not intended to be limiting.
Claims (10)
1. Can resist intelligent balancing suspension pole system of strong wind, include:
Holding pole;
the lifting rope bypasses the top of the holding pole and is used for lifting materials;
Characterized by further comprising:
The top round pulley rail is arranged at the top end of the holding pole, and a plurality of pulleys are slidably arranged on the top round pulley rail;
the waist round pulley rail is arranged in the middle of the holding pole, and a plurality of pulleys are slidably arranged on the round pulley rail;
The waist suspension diverting pulley rail is arranged in the middle of the holding pole and below the waist round pulley rail, and a plurality of pulleys are slidably arranged on the waist suspension diverting pulley rail;
the bottom suspension diverting pulley rail is arranged at the bottom of the holding pole, and a plurality of pulleys are slidably arranged on the bottom suspension diverting pulley rail;
One end of each control cable is fixed on the pulley of the circular pulley rail at the top and sequentially bypasses the pulley of the suspended diverting pulley rail at the waist and the pulley of the suspended diverting pulley rail at the bottom, and the other ends of the control cables are fixed on the pulley of the circular pulley rail at the waist and sequentially bypass the pulley of the suspended diverting pulley rail at the waist and the pulley of the suspended diverting pulley rail at the bottom;
the data acquisition system is used for acquiring data of the pole holding system;
The intelligent cable force adjusting system is connected to the other ends of the control cables and used for controlling the pulling force of the control cables and the sliding of the control pulleys on the corresponding tracks according to the data acquired by the data acquisition system.
2. The intelligent balancing suspension pole system capable of resisting strong wind according to claim 1, wherein: the top circular pulley track and the waist circular pulley track are respectively fixed on the head part and the waist part of the holding pole, the waist suspension diverting pulley track is used for being pulled and connected on a built main material of the power transmission tower through stranded wires, and the bottom suspension diverting pulley track is used for being pulled and connected on a basic ground anchor of the main material of the power transmission tower through a stay wire outside the track.
3. The intelligent balancing suspension pole system capable of resisting strong wind according to claim 1, wherein: can resist strong wind's intelligent balancing suspension pole-holding system still includes:
The bottom lifting rope suspension steering track is arranged on the inner side of the bottom suspension steering pulley track, one end of the lifting rope sequentially bypasses the pulley of the top circular pulley track, the pulley of the waist circular pulley track, the pulley of the bottom lifting rope suspension steering track is used for being connected to a winch, and the other end of the lifting rope is used for being connected with materials.
4. The intelligent balancing suspension pole system capable of resisting strong wind according to claim 3, wherein: the bottom suspension diverting pulley track is coaxial with the bottom hoisting rope suspension diverting track, and the radius of the bottom suspension diverting pulley track is larger than that of the bottom hoisting rope suspension diverting track;
the bottom lifting rope suspension steering track is connected to the bottom suspension steering pulley track through a track inner pull wire, and the bottom suspension steering pulley track is fixed on a power transmission tower foundation ground anchor through a track outer pull wire.
5. The intelligent balancing suspension pole system capable of resisting strong wind according to claim 4, wherein: the radius of the bottom hoisting rope suspension diverting pulley track is smaller than that of the waist round pulley track, and the radius of the bottom suspension diverting pulley track is smaller than that of the waist suspension diverting pulley track.
6. The intelligent balancing suspension pole system capable of resisting strong wind according to claim 1, wherein: the data acquisition system comprises:
The tension inclination sensors are respectively arranged on the lifting rope and the control inhaul cables and are used for detecting the tension and inclination of the lifting rope and the control inhaul cables;
The wind speed and direction sensors are respectively arranged at the top and the middle of the holding pole and are used for detecting wind speed and direction;
The plurality of locating devices are respectively arranged on the plurality of pulleys and are used for detecting the positions of the pulleys.
7. A method of using the intelligent balancing suspension pole system of claim 1, comprising:
S1: hoisting materials through a holding pole;
s2: through data acquisition system, gather the data of pole-holding system, include: pulling force Fl of the lifting rope and vertical inclination angle alpha; controlling the pulling force Fk of the inhaul cable, the vertical inclination angle alpha and the positions of the pulleys;
s3: calculating the optimal position of the pulley and controlling the balancing tension of the inhaul cable according to the acquired data of the pole holding system through the intelligent cable force adjusting system;
S4: the intelligent cable force adjusting system controls the pulley to move and controls the tension of the control cable, so that the holding pole is in a stress balance state.
8. The method for using the intelligent balancing suspension pole system capable of resisting strong wind according to claim 7, wherein,
The step S3 comprises the following steps:
S31: reading in the pulling force Fk of the control cable, the pulling force Fl of the lifting rope and the vertical inclination angle alpha of each of the control cable and the lifting rope, and obtaining the maximum lifting pulling force Flmax;
s32: calculating the horizontal stress state of the top circular pulley track;
s33: establishing a rectangular coordinate system by taking the vector direction of the maximum hoisting tension Flmax as the positive direction of the x-axis, and performing a horizontal force diagram;
S34: loosening a control cable in the same direction as Flmax;
s35: the resultant force of the x and y axes is balanced, the standard deviation of Fk is used as a constraint condition, 2 DEG is used as a step length, and the cable force of the control cable in each azimuth is calculated in an iterative mode;
S36: calculating a scheme that the Fk mean value of the tensile force is minimum and the standard deviation meets the requirement;
S37: and outputting the coordinates of the cable force Fk and the pulley.
9. The method of strong wind resistance for intelligent balancing of a suspended pole system according to claim 1, comprising:
s101: the data acquisition system is used for acquiring data of the pole holding system, including wind direction and wind speed at the top and the waist of the pole holding system, and controlling the tension and the inclination angle of the inhaul cable;
S102: judging whether wind load exceeds limit according to the collected data by the intelligent cable force adjusting system, if so, calculating the optimal position of the pulley and controlling the balancing tension of the inhaul cable by the intelligent cable force adjusting system according to the collected data of the pole holding system;
S104: the intelligent cable force adjusting system controls the pulley to move and controls the tension of the control cable, so that the holding pole is in a stress balance state.
10. The method for resisting strong wind of the intelligent balancing suspension pole system according to claim 9, wherein,
Step S102 includes:
s1021: reading in the pulling force Fk of a control inhaul cable and controlling the vertical inclination angle alpha of the inhaul cable;
S1022: calculating the horizontal stress state of the top circular pulley track and the waist circular pulley track;
S1023: converting wind speed into wind load, establishing a coordinate system by taking a horizontal direction as an x-axis positive direction, and making a horizontal diagram of a top circular pulley track and a waist circular pulley track;
s1024: releasing the top and waist control cables in the wind load vector region;
S1025: the resultant force of the x and y axes is balanced, the standard deviation of Fk is used as a constraint condition, 2 DEG is used as a step length, and the cable force of the control cable in each azimuth is calculated in an iterative mode;
S1026: calculating a scheme that the Fk mean value of the tensile force is minimum and the standard deviation meets the requirement;
s1027: and outputting the coordinates of the cable force Fk and the pulley.
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| CN202211247000.2A CN115478731B (en) | 2022-10-12 | 2022-10-12 | Intelligent balancing suspension pole system capable of resisting strong wind and use method |
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