CN115478731A - Strong wind resistant intelligent balancing suspension holding pole system and use method thereof - Google Patents
Strong wind resistant intelligent balancing suspension holding pole system and use method thereof Download PDFInfo
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- CN115478731A CN115478731A CN202211247000.2A CN202211247000A CN115478731A CN 115478731 A CN115478731 A CN 115478731A CN 202211247000 A CN202211247000 A CN 202211247000A CN 115478731 A CN115478731 A CN 115478731A
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 238000010276 construction Methods 0.000 description 7
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- 229910052742 iron Inorganic materials 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 4
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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 holding pole system capable of resisting strong wind and a using method thereof are disclosed, wherein the system comprises a holding pole; lifting a lifting rope; the top circular pulley track is provided with a plurality of pulleys; the waist circular pulley track is provided with a plurality of pulleys; the waist suspension steering pulley track is provided with a plurality of pulleys; a bottom suspended diverting pulley track provided with a plurality of pulleys; one end of each of the control guys is fixed on the top round pulley track and sequentially bypasses the waist suspension steering pulley track and the bottom suspension steering pulley track, and one end of each of the control guys is fixed on the waist round pulley track and sequentially bypasses the waist suspension steering pulley track and the bottom suspension steering pulley track; the data acquisition system is used for acquiring data of the pole holding system; and 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 controlling the pulleys to slide on the corresponding tracks. The intelligent balancing system can achieve 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 a strong wind resistant intelligent balancing suspension holding pole system and a using method thereof.
Background
With the continuous development of power grids in China, the construction requirements of extra-high voltage transmission iron towers are increased day by day, and the heights of the iron towers are increased gradually. After more and more large-span iron towers appear, the requirements of iron tower assembly on the used holding pole are higher and higher. The internal suspension external stay wire holding pole is used as special hoisting 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 bracing wire holding pole is often adopted for disassembling and assembling the power transmission tower.
The fixing mode of the internal suspension external stay wire holding pole is that the upper section is connected to the ground through four external stay wires in a pulling mode to form an anchoring mode, and the lower end is connected with the built main material of the power transmission tower through four supporting ropes. When the holding pole is hoisted, a hoisting rope needs to be wound around a pulley block at the head of the holding pole to be connected with a winch on the ground to hoist the tower material, and the problem that the holding pole is uneven in stress and the like easily occurs when hoisting is carried out on one side. When the tower materials are symmetrically lifted on both sides, overturning force is often generated due to the reasons of asynchronous loading, unloading and lifting angles and the like, so that the holding pole is inclined, and engineering accidents are easily caused.
In addition, the internal suspension external stay wire holding pole belongs to a high-rise structure, has a large slenderness ratio, is similar to a hinged type in terms of restriction at two ends, is greatly influenced by wind load in the process of high-altitude operation, is easy to overturn and collapse particularly under the action of strong wind, threatens the personal safety of constructors and causes huge economic loss. Therefore, need for an intelligent balance suspension pole system that can resist strong wind, guarantee that pole atress is balanced not to take place the slope when hoist and mount, can guarantee that pole has sufficient stability to resist wind load when strong wind assaults simultaneously, guarantee electric power construction's safety.
Disclosure of Invention
The technical problem is as follows: in order to solve the problems that the internal suspension and external stay wire holding pole is easy to topple when being hoisted and the stability is poor when strong wind comes, the intelligent balancing suspension holding pole system capable of resisting the strong wind and the using method are designed to overcome the defect that the existing suspension holding pole is unstable, so that the transverse tension can be intelligently balanced through the control system when tower materials are hoisted, and the balance of the holding pole is kept. Meanwhile, when strong wind comes, the inhaul cable is adjusted and controlled in real time through the monitoring system and the control system to balance wind load, so that intelligent wind resistance is achieved, and stability and safety of the suspended holding pole are guaranteed.
The technical scheme is as follows: the invention discloses an intelligent balancing suspension holding pole system capable of resisting strong wind, which comprises:
holding a pole;
the lifting rope bypasses the top of the holding pole and is used for lifting materials;
the top circular pulley track is arranged at the top end of the holding pole, and a plurality of pulleys are slidably arranged on the top circular pulley track;
the waist circular pulley track is arranged in the middle of the holding pole, and a plurality of pulleys are slidably arranged on the waist circular pulley track;
the waist suspension steering pulley track is arranged in the middle of the holding pole and is positioned below the waist circular pulley track, and a plurality of pulleys are slidably arranged on the waist suspension steering pulley track;
the bottom suspension steering pulley rail is arranged at the bottom of the holding pole, and a plurality of pulleys are slidably arranged on the bottom suspension steering pulley rail;
one end of each of the other control inhaul cables is fixed on the pulley of the waist circular pulley track and sequentially bypasses the pulley of the waist suspension steering pulley track and the pulley of the bottom suspension steering pulley track;
the data acquisition system is used for acquiring data of the pole holding system;
and 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 controlling the pulleys to slide on the corresponding tracks according to the data acquired by the data acquisition system.
Furthermore, the top round pulley track and the waist round pulley track are respectively fixed on the head part and the waist part of the holding rod, the waist suspension diverting pulley track is connected to the built main material of the power transmission tower in a pulling mode through a stranded wire, and the bottom suspension diverting pulley track is connected to the foundation ground anchor of the main material of the power transmission tower in a pulling mode through an external track pull wire.
Further, but pole system is embraced in intelligent trim suspension of strong wind resistance still includes:
the bottom lifting rope suspends and turns to the track, locates the orbital inboard of bottom suspension diverting pulley, the orbital pulley of top round pulley, the orbital pulley of waist round pulley, the orbital pulley of bottom lifting rope suspension diverting track are used for connecting in the hoist engine, the lifting rope other end is used for connecting the material.
Further, the bottom suspended diverting pulley track is coaxial with the bottom lifting rope suspended diverting track, and the radius of the bottom suspended diverting pulley track is larger than that of the bottom lifting rope suspended diverting track;
the bottom lifting rope suspension steering track is connected to the bottom suspension steering pulley track through an inner stay wire of the track, and the bottom suspension steering pulley track is fixed on a power transmission tower foundation ground anchor through an outer stay wire of the track.
Furthermore, the radius of the bottom lifting rope suspension steering track is smaller than that of the waist circular pulley track, and the radius of the bottom suspension steering pulley track is smaller than that of the waist suspension steering pulley track.
Further, the data acquisition system comprises:
the tension and inclination angle sensors are respectively arranged on the lifting rope and the control inhaul cables and are used for detecting the tension and the inclination angle 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;
and the positioning devices are respectively arranged on the pulleys and used for detecting the positions of the pulleys.
The invention also provides a using method of the intelligent balancing suspension holding pole system capable of resisting strong wind, which comprises the following steps:
s1: hoisting the material through the holding pole;
s2: through data acquisition system, gather the data of embracing the pole system, include: pulling force Fl and vertical inclination angle alpha of the lifting rope; controlling the tension Fk and the vertical inclination angle alpha of the inhaul cable and the position of each pulley;
s3: calculating the optimal position of a pulley and controlling the balancing tension of a stay cable according to the acquired data of the pole embracing system through an intelligent cable force adjusting system;
s4: the pulley is controlled to move and the tension of the inhaul cable is controlled through the intelligent cable force adjusting system, 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 respective vertical inclination angles alpha of the control cable and the lifting rope, and acquiring the maximum lifting pulling force Flmax;
s32: calculating the horizontal stress state of the top circular pulley rail;
s33: establishing a rectangular coordinate system by taking the vector direction of the maximum lifting tension Flmax as the positive direction of an x axis to work as a horizontal stress diagram;
s34: loosening a control cable in the same direction as the Flmax;
s35: the resultant force of the x axis and the y axis is balanced, the standard deviation of Fk is taken as a constraint condition, 2 degrees is taken as a step length, and the cable force of the control cable in each direction is calculated in an iterative manner;
s36: calculating a scheme that the mean value of the pulling force Fk 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 resisting method of the intelligent balancing suspension holding pole system capable of resisting strong wind, which comprises the following steps:
s101: collecting data of the holding pole system through a data collecting system, wherein the data comprises wind directions and wind speeds at the top and the waist of the holding pole, and controlling the tension and the inclination angle of the inhaul cable;
s102: judging whether the wind load exceeds the limit or not through the intelligent cable force adjusting system according to the collected data, and if so, calculating the optimal position of the pulley and controlling the balancing tension of the stay cable through the intelligent cable force adjusting system according to the collected data of the pole holding system;
s104: the pulley is controlled to move and the tension of the inhaul cable is controlled through the intelligent cable force adjusting system, so that the holding pole is in a stress balance state.
Further, step S102 includes:
s1021: reading in a pulling force Fk of a control inhaul cable, and controlling a 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 the wind speed into wind load, establishing a coordinate system by taking a horizontal direction as the positive direction of an x axis, and making a horizontal force diagram of a top circular pulley rail and a waist circular pulley rail;
s1024: loosening the top and waist control inhaul cables in the same region of the wind load vector;
s1025: the resultant force of the x axis and the y axis is balanced, the standard deviation of Fk is taken as a constraint condition, 2 degrees is taken as a step length, and the cable force of the control cable in each direction is calculated in an iterative manner;
s1026: calculating a scheme that the mean value of the pulling force Fk is minimum and the standard deviation meets the requirement;
s1027: outputting the cable force Fk and the coordinates of the pulley.
Has the advantages that: the invention adds 8 control guys on the existing internal suspension external guy holding pole, and bypasses the steering track connected with the main material of the power transmission tower to connect with the intelligent guy force adjusting system on the ground. And the intelligent counterweight and the intelligent wind resistance are realized by matching the data acquisition system and the intelligent control system. When the system hoists tower materials on one side or hoists the tower materials on two sides simultaneously, an optimal counterweight scheme can be automatically obtained by utilizing an algorithm, and the balancing work is completed by utilizing the cable force adjusting system, so that the balance and stability of the holding pole in the hoisting process are ensured. When strong wind attacks, the intelligent control system can also calculate an optimal wind resisting scheme through the obtained wind speed and wind direction data, intelligent wind resistance is achieved through the 8 control inhaul cables, and the pole is prevented from overturning under the action of the strong wind. In addition, this system can also realize 360 all-round multilateral hoists, need not to rotate and embraces the pole main part, can carry out the hoist and mount operation of four group's 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 holding pole system capable of resisting strong wind according to an embodiment of the invention;
fig. 2 is a detailed schematic diagram of a pole head of the intelligent balancing suspension pole system capable of resisting strong wind shown in fig. 1;
fig. 3 is a detailed schematic view of a pole waist portion of the intelligent balancing suspension pole system capable of resisting strong wind shown in fig. 1;
FIG. 4 is a schematic view of a waist suspension steering track of the intelligent balancing suspension holding pole system capable of resisting strong wind shown in FIG. 1;
FIG. 5 is a schematic view of a bottom suspension steering track of the intelligent balancing suspension holding pole system capable of resisting strong wind shown in FIG. 1;
FIG. 6 is a flow chart of an intelligent weight of the intelligent balancing suspension holding pole system capable of resisting strong wind according to the embodiment of the invention;
FIG. 7 is a flow chart of an intelligent wind resistance of the intelligent balancing suspension mast system capable of resisting strong wind according to the embodiment of the invention;
fig. 8 is a flowchart of operations of the intelligent counterweight and intelligent cable force adjusting system in the wind resistance of the intelligent balancing suspension pole system capable of resisting strong wind according to the embodiment of the present invention.
In the figure: 1. a holding rod head for fixing the top round pulley track; 2. lifting a lifting rope; 3. the holding rod waist part of the round pulley track of the fixed waist part; 4. the top of the holding pole controls a guy cable; 5. the waist of the holding pole controls the guy cable; 6. a waist suspended diverting pulley track; 7. a main material of the power transmission tower; 8. a transmission tower foundation ground anchor; 9. an intelligent cable force adjustment system; 10. a bottom suspended diverting pulley track; 11. a support rope; 12 19, wind speed and wind direction sensors A and B; 13. an outer stay wire; 14. a top circular pulley track; 15 21, electric pulley; 16 17, 18, tension tilt angle sensors A, B, C; 20. a waist circular pulley track; 22 26, control cable diverting pulley; 23. hanging steel strands; 24. lifting the rope and electrically steering the pulley; 25. a bottom lifting rope is suspended to turn to the track; 27. a track inner stay wire; 28. and (4) pulling wires outside the track.
Detailed Description
Referring to fig. 1 to 5, an embodiment of the present application provides an intelligent balancing suspension pole system capable of resisting strong wind, including:
holding the pole;
the lifting rope 2 bypasses the top of the holding pole and is used for lifting materials;
the top circular 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 circular pulley rail 14;
the waist circular pulley track 20 is arranged in the middle of the holding pole, and a plurality of pulleys 21 are slidably arranged on the waist circular pulley track 20;
the waist suspension steering pulley track 6 is arranged in the middle of the holding pole and is positioned below the waist circular pulley track 20, and a plurality of pulleys 22 are slidably arranged on the waist suspension steering pulley track 6;
the bottom suspension steering pulley rail 10 is arranged at the bottom of the holding pole, and a plurality of pulleys 26 are slidably arranged on the bottom suspension steering pulley rail 10;
a plurality of control cables 4, 5, wherein one end of part of the control cables 4 is fixed on the pulley 15 of the top circular pulley track 14 and sequentially passes through the pulley 22 of the waist suspension steering pulley track 6 and the pulley 26 of the bottom suspension steering pulley track 10, and one end of the other part of the control cables 5 is fixed on the pulley 21 of the waist circular pulley track 20 and sequentially passes through the pulley 22 of the waist suspension steering pulley track 6 and the pulley 26 of the bottom suspension steering pulley track 10;
the data acquisition system is used for acquiring data of the pole holding system;
and the intelligent cable force adjusting system 9 is connected to the other ends of the control cables 4 and 5 and 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 inhaul cables 4 and 5 are controlled to generate pulling force on the top circular pulley rail 14 or the waist circular pulley rail 20, and when the lifting rope 2 is lifted, the intelligent rope force adjusting system 9 adjusts the pulling force and the angle of the inhaul cables 4 and 5 to balance the stress of the holding pole.
In order to avoid that the control cables 4, 5 generate excessive vertical forces on the mast body when balancing horizontal forces, steering is provided by the waist suspended diverting pulley track 6 and the bottom suspended diverting pulley track 10.
In the present embodiment, four pulleys are provided in each of the pulley tracks 14, 20, 6, 10; the number of the control cables 4 and 5 is eight, four of which are connected to the top circular pulley rail 14, and the other four of which are connected to the waist circular pulley rail 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 required.
The pulleys 15, 21, 22, 26 are slidable in the corresponding pulley tracks 14, 20, 6, 10, and the intelligent cable force adjustment system 9 can control the pulleys 15, 21, 22, 26 to move to the set positions.
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 circular pulley track 14 and is fixedly connected with the lifting rope 2 and the top control 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 rod waist control cable 5 simultaneously bypass the control cable diverting pulley 22.
Control cable diverting pulley 26 locates bottom suspension diverting pulley track 10, and control cable diverting pulley 26 is walked around simultaneously to top control cable 4 and embrace pole waist control cable 5.
The pulleys 15, 21, 22 and 26 are divided into four groups A, B, C and D, each group of pulley blocks comprises pulleys connected with the same control cables 4 and 5 on four tracks 14, 20, 6 and 10, and the pulleys in the same group keep the same angular speed to move so as to prevent the control cables 4 and 5 from inclining. Meanwhile, the maximum moving angle range of each group of pulley blocks is 90 degrees, and collision between the control inhaul cables 4 and 5 and the bearing rope 11 is prevented.
The intelligent cable force adjusting system 9 can obtain an optimal pulley block position and a cable force of a control cable according to the obtained external force, the inclination angle and the pulley block initial position data and an algorithm.
Based on the setting, under the condition that the vertical bearing capacity of the holding pole meets the requirements, a plurality of groups of hoisting work can be carried out simultaneously, and if some small tower materials are hoisted, the hoisting can be carried out simultaneously in 4 directions.
During intelligent balancing, it should be noted that the intelligent cable force adjusting system 9 cannot change the position of the pulley block which is hoisting the tower material, intelligent balancing should be performed through the non-hoisting pulley block, and if the four pulley blocks are all in a working state, balancing is performed completely through adjusting the cable force of the control cables 4 and 5.
When assemblage large-span iron tower, hold pole size long time, there is certain deviation in the wind speed of holding pole top and waist, so respectively hold pole top and waist and set up control cable 4, 5 and can accomplish more refined control trim, simultaneously when strong wind strikes, only exert the restraint at top and bottom and fix not stable enough, add four control cable 5 at the waist and can improve the anti-wind stability of holding the 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 rail 14 is provided with a horizontal annular sliding groove.
The pulley 15 includes a slider and a roller. One end of the sliding part is slidably arranged on the annular sliding groove. The rolling piece is rotatably arranged at one end of the sliding piece, which is far away from the annular sliding groove.
A driving device is fixed in the sliding part to drive the sliding part to move in the annular sliding chute. The driving device is controlled by the intelligent cable force adjusting system 9 to move.
The waist round pulley track 20, the waist floating diverting pulley track 6 and the bottom floating diverting pulley track 10 have substantially the same structure as the top round pulley track 14.
The difference is that: the annular sliding chute of the waist suspension diverting pulley track 6 is arranged on the inner peripheral wall of the waist suspension diverting pulley track; the annular chute of the bottom suspended diverting pulley track 10 is arranged in its top wall. The pulley 22 of the waist suspended diverting pulley track 6 comprises a sliding part and two rolling parts. The two rolling parts are respectively arranged on the sliding part in a rotatable way. The two rolling parts are respectively connected with a holding pole top control cable 4 and a holding pole waist control cable 5.
The top round pulley rail 14 and the waist round pulley rail 20 are respectively fixed on the head and the waist of the holding pole, the waist suspension diverting pulley rail 6 is used for being connected to the built main material 7 of the power transmission tower through a stranded wire 23 in a pulling mode, and the bottom suspension diverting pulley rail 10 is used for being connected to the foundation ground anchor 8 of the main material of the power transmission tower through a rail external pulling wire 28 in a pulling mode.
But strong wind's intelligent balance suspension pole 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 rounds the pulley 15 of the top circular pulley rail 14, the pulley 21 of the waist circular pulley rail 20 and the pulley 24 of the bottom lifting rope suspension steering rail 25 and is connected with a winch (not shown), and the other end of the lifting rope is used for connecting materials.
The electric steering pulley 24 of the lifting rope 2 is arranged on the bottom lifting rope suspension steering track 25, and the lifting rope 2 bypasses the electric steering pulley 24 of the lifting rope.
The bottom suspended diverting pulley track 10 is coaxial with the bottom lifting rope suspended diverting track 25, and the radius of the bottom suspended diverting pulley track 10 is larger than that of the bottom lifting rope suspended diverting track 25;
the bottom lifting rope suspension steering track 25 is connected to the bottom suspension steering pulley track 10 through an in-track pull wire 27, and the bottom suspension steering pulley track 10 is fixed on the power transmission tower foundation ground anchor 8 through an out-track pull wire 28.
The radius of the bottom lifting rope suspension steering track 25 is smaller than that of the waist circular pulley track 20, and the radius of the bottom suspension steering pulley track 10 is smaller than that of the waist suspension steering pulley track 6.
So set up and to avoid control cable 4, 5 and 2 derailments of lifting rope.
The data acquisition system includes:
the tension inclination angle sensors 18 are respectively arranged on the lifting rope and the control guys 4 and 5 and are used for detecting the tension and the inclination angle of the lifting rope and the control guys 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;
and a plurality of positioning devices (not shown) respectively provided on the plurality of pulleys 15, 21, 22, 26 for detecting 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 intelligent cable force adjustment system is used for specific adjustment, so that it can be understood that the functions can be integrated into the intelligent cable force adjustment system, and the intelligent cable force adjustment system is used for completing calculation and adjustment.
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, a tension tilt angle sensor 18 on a control cable 4 and a control cable 5, a wind speed and direction sensor 19 on the top and the waist of the holding pole and positioning devices of all pulley blocks. When the pole is used for hoisting the tower material, the tension inclination angle sensor 18 transmits the tension and inclination angles of the hoisting rope 2 and the control guy ropes 4 and 5 back to the central control system, and calculating an optimal balancing scheme by the intelligent control system, controlling the non-hoisting pulley block to move to a specified position, and adjusting and controlling the cable force of the stay cable in real time by controlling the intelligent cable force control system 9. The wind power and wind direction sensors 19 at the head and waist of the holding pole are responsible for collecting real-time wind field data around the holding pole and sending the real-time wind field data back to the intelligent control system, when the wind speed exceeds a limit value, the intelligent control system calculates corresponding wind load and the worst 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, controls the pulley block and the intelligent cable force adjusting system to adjust the control cables to the corresponding position and the corresponding tension, and adjusts the wind resisting scheme in real time according to the change of the wind field.
Referring to fig. 6 to 8 together, an embodiment of the present application further provides a method for using an intelligent balancing suspension pole system capable of resisting strong wind, including:
s1: hoisting the material through the holding pole;
s2: through data acquisition system, gather the data of embracing the pole system, include: the pulling force Fl and the vertical inclination angle alpha of the lifting rope 2; controlling the tension Fk and the vertical inclination angle alpha of the guys 4 and 5 and the positions of the pulleys 15, 21, 22 and 26;
s3: calculating the optimal positions of the pulleys 15, 21, 22 and 26 and controlling the balancing tension of the inhaul cables 4 and 5 according to the acquired data of the pole embracing system through the intelligent cable force adjusting system 9;
s4: the intelligent cable force adjusting system 9 controls the pulleys 15, 21, 22 and 26 to move and controls the tension of the inhaul cables 4 and 5, so that the holding pole is in a stress balance state.
The step S3 comprises the following steps:
s31: reading in the pulling force Fk of the control guys 4 and 5, the pulling force Fl of the lifting rope 2 and the respective vertical inclination angles alpha of the control guys 4 and 5 and the lifting rope 2, and acquiring the maximum lifting pulling force Flmax;
s32: calculating the horizontal stress state of the top circular pulley rail 14;
s33: establishing a rectangular coordinate system by taking the vector direction of the maximum lifting tension Flmax as the positive direction of an x axis to work as a horizontal stress diagram;
s34: loosening a control cable in the same direction as the Flmax;
s35: the resultant force of the x axis and the y axis is balanced, the standard deviation of Fk is taken as a constraint condition, 2 degrees is taken as a step length, and the cable force of the control cable in each direction is calculated in an iterative manner;
s36: calculating a scheme that the mean value of the pulling force Fk 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 force Fk of the control cables 4 and 5, the pulling force Fl of the lifting rope 2, and the vertical inclination angle α of the control cables 4 and 5 and the lifting rope 2 may be obtained by the corresponding pulling force inclination angle sensor 18, and the maximum lifting pulling force flumax is preset data.
In step S32, the horizontal stress state of the top circular pulley rail 14 can be calculated by the following formula:
Fsinα 。
the embodiment of the application also provides a strong wind resistant method of the intelligent balancing suspension holding pole system capable of resisting strong wind, which comprises the following steps:
s101: collecting data of the holding pole system through a data collecting system, wherein the data comprises wind directions and wind speeds at the top and the waist of the holding pole, and controlling the tension and the inclination angle of the inhaul cable;
s102: judging whether the wind load exceeds the limit or not through the intelligent cable force adjusting system 9 according to the collected data, if so, calculating the optimal positions of the pulleys 15, 21, 22 and 26 and controlling the 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 tension of the inhaul cables 4 and 5, so that the holding pole is in a stress balance state.
The step S102 includes:
s1021: reading in the pulling force Fk of the control guy cables 4 and 5 and controlling the vertical inclination angle alpha of the guy 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 the wind speed into wind load, establishing a coordinate system by taking a horizontal direction (such as a due north direction) as the positive direction of an x axis, and making a horizontal force diagram of the top circular pulley rail 14 and the waist circular pulley rail 20;
s1024: the top and waist control guys 4 and 5 in the same region of the relaxed wind load vector;
s1025: the resultant force of the x and y axes is balanced, the standard deviation of Fk is taken as a constraint condition, 2 degrees is taken as a step length, and the cable force of the control cables 4 and 5 under each direction is calculated in an iterative mode;
s1026: calculating a scheme that the mean value of the pulling force Fk is minimum and the standard deviation meets the requirement;
s1027: the coordinates of the cable force Fk and the pulleys 15, 21, 22, 26 are output.
In at least one embodiment, after step S104, the method further includes re-executing step S102.
Step S102 further includes: and judging whether the wind load is over-limit or not through the intelligent cable force adjusting system 9 according to the collected data, if not, loosening the control cables 4 and 5 to proper tension, and resetting the pulleys 15, 21, 22 and 26.
When the wind force gradually subsides, the wind load is reduced, and the control guys 4 and 5 and the pulley return positions 15, 21, 22 and 26.
The embodiment of the application also provides an assembling method of the intelligent balancing suspension holding pole system capable of resisting strong wind, which comprises the following steps:
after the pole holding assembly is completed, the bottom suspension steering track 10 is connected to the ground anchor 8 of the power transmission tower in a pulling mode, when the pole holding assembly is lifted to a certain height, the waist suspension steering track 6 is connected to the main material of the power transmission tower in a pulling mode, when the track is stable, one ends of 8 control guys 4 and 5 are respectively connected to the middle shafts of eight groups of electric pulleys 15 and 21 on the top circular pulley track 14 and the waist circular pulley track 20, after the fixing is completed, the 8 control guys 4 and 5 are subjected to twice steering through the waist suspension steering pulley track 6 and the electric steering pulleys 22 and 26 on the bottom suspension steering track 10, and the intelligent guy force adjusting system 9 is connected to the ground.
After the control system is installed, the hoisting rope 2 is passed over the pulleys 15 of the top circular pulley track 14 and the pulleys 21 of the waist circular pulley track 20, as shown in fig. 2, 3 and 5.
The hoisting rope 2 is prevented from derailing and is connected with the intelligent cable force adjusting system 9 through a diverting pulley 24 on a bottom hoisting rope suspension diverting rail 25. Meanwhile, before hoisting, the tension inclination angle sensor A16 on the hoisting rope 2 and the tension inclination angle sensors B, C17 and 18 on the control inhaul cable are firmly fixed and normally work, and meanwhile, positioning devices in the pulleys 15, 21, 22 and 26 are calibrated to ensure that transmitted data are accurate. During hoisting, the sensors transmit the hoisting rope 2 and the tension and inclination angle data of the control guy ropes 4 and 5 back to the intelligent control system, the computer obtains an optimal balancing scheme capable of balancing the holding pole by using 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 the specified positions, and compensates the tension of the control guy ropes 4 and 5 through the intelligent guy rope force adjusting system 9, so that the holding pole is balanced in stress. The specific intelligent balancing process is shown in fig. 6.
In the process of lifting the tower material, 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. In a construction site, a specially-assigned person is responsible for monitoring the working conditions of the site control guys 4 and 5 and the pulleys 15, 21, 22 and 26, and collision and winding among the guys are avoided.
As shown in fig. 2 to 5, each circular track 14, 20, 6, 10 has 4 pulleys 15, 21, 22, 26, and in order to ensure that the control guy cable is inclined and wound during the operation of the system, the maximum movement angle of the pulleys on the same track is 90 °, and meanwhile, it is ensured that the pulley blocks connected with the same guy cable on different tracks rotate at the same angular speed, thereby ensuring the safety of the system during the adjustment process.
The above description is only a preferred embodiment of the present invention, and those skilled in the art can make modifications and improvements to the embodiments as appropriate based on the disclosure of the specification. The present invention is not limited to the above-described embodiments, and variations and modifications are included in the scope of the claims, and the terms used in the present invention are merely for convenience of description and do not limit the present invention in any way.
Claims (10)
1. A strong wind resistant intelligent trim suspension pole system comprising:
holding the pole;
the lifting rope bypasses the top of the holding pole and is used for lifting materials;
it is characterized by also comprising:
the top circular pulley track is arranged at the top end of the holding pole, and a plurality of pulleys are slidably arranged on the top circular pulley track;
the waist circular pulley track is arranged in the middle of the holding pole, and a plurality of pulleys are slidably arranged on the circular pulley track;
the waist suspension steering pulley track is arranged in the middle of the holding pole and is positioned below the waist circular pulley track, and a plurality of pulleys are slidably arranged on the waist suspension steering pulley track;
the bottom suspension steering pulley rail is arranged at the bottom of the holding pole, and a plurality of pulleys are slidably arranged on the bottom suspension steering pulley rail;
one end of each of the other control inhaul cables is fixed on the pulley of the circular pulley track at the waist part and sequentially passes through the pulley of the circular pulley track at the waist part and the pulley of the suspended steering pulley track at the bottom part;
the data acquisition system is used for acquiring data of the pole holding system;
and 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 controlling the pulleys to slide 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, which is characterized in that: 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 rod, the waist suspension steering pulley track is used for being connected to a built main material of the power transmission tower in a pulling mode through a stranded wire, and the bottom suspension steering pulley track is used for being connected to a foundation ground anchor of the main material of the power transmission tower in a pulling mode through an external track pull wire.
3. The strong wind resistant intelligent balancing suspension pole embracing system according to claim 1, wherein: but strong wind's intelligent trim suspension armful of pole system still includes:
the bottom lifting rope suspends and turns to the track, locates the orbital inboard of bottom suspension diverting pulley, the orbital pulley of top round pulley, the orbital pulley of waist round pulley, the orbital pulley of bottom lifting rope suspension diverting track are used for connecting in the hoist engine, the lifting rope other end is used for connecting the material.
4. The intelligent balancing suspension pole system capable of resisting strong wind according to claim 3, characterized in that: the bottom suspension steering pulley track is coaxial with the bottom lifting rope suspension steering track, and the radius of the bottom suspension steering pulley track is larger than that of the bottom lifting rope suspension steering track;
the bottom lifting rope suspension steering track is connected to the bottom suspension steering pulley track through an inner stay wire of the track, and the bottom suspension steering pulley track is fixed on a power transmission tower foundation ground anchor through an outer stay wire of the track.
5. A strong wind resistant intelligent balancing suspension pole embracing system according to claim 4, wherein: the radius of the bottom lifting rope suspension steering track is smaller than that of the waist circular pulley track, and the radius of the bottom suspension steering pulley track is smaller than that of the waist suspension steering pulley track.
6. The intelligent balancing suspension pole system capable of resisting strong wind according to claim 1, which is characterized in that: the data acquisition system includes:
the tension and inclination angle sensors are respectively arranged on the lifting rope and the control inhaul cables and are used for detecting the tension and the inclination angle 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;
and the positioning devices are respectively arranged on the pulleys and used for detecting the positions of the pulleys.
7. A method for using the intelligent balancing suspension pole system capable of resisting strong wind according to claim 1, which comprises:
s1: hoisting the material through the holding pole;
s2: through data acquisition system, gather the data of embracing the pole system, include: pulling force Fl and vertical inclination angle alpha of the lifting rope; controlling the tension Fk of the inhaul cable, the vertical inclination angle alpha and the positions of the pulleys;
s3: calculating the optimal position of a pulley and controlling the balancing tension of a stay cable according to the acquired data of the pole embracing system through an intelligent cable force adjusting system;
s4: the pulley is controlled to move and the tension of the inhaul cable is controlled through the intelligent cable force adjusting system, so that the holding pole is in a stress balance state.
8. The use method of the intelligent balancing suspension holding pole system capable of resisting strong wind according to claim 7,
the step S3 comprises the following steps:
s31: reading the pulling force Fk of the control cable, the pulling force Fl of the lifting rope and the respective vertical inclination angles alpha of the control cable and the lifting rope, and acquiring the maximum lifting pulling force Flmax;
s32: calculating the horizontal stress state of the top circular pulley rail;
s33: establishing a rectangular coordinate system by taking the vector direction of the maximum lifting tension Flmax as the positive direction of an x axis to work as a horizontal stress diagram;
s34: loosening a control cable in the same direction as the Flmax;
s35: the resultant force of the x axis and the y axis is balanced, the standard deviation of Fk is taken as a constraint condition, 2 degrees is taken as a step length, and the cable force of the control cable in each direction is calculated in an iterative manner;
s36: calculating a scheme that the mean value of the pulling force Fk is minimum and the standard deviation meets the requirement;
s37: and outputting the coordinates of the cable force Fk and the pulley.
9. The strong wind resistant method of the intelligent trim suspension pole system capable of resisting strong wind according to claim 1, comprising:
s101: collecting data of the holding pole system through a data collecting system, wherein the data comprises wind directions and wind speeds at the top and the waist of the holding pole, and controlling the tension and the inclination angle of the inhaul cable;
s102: judging whether the wind load exceeds the limit or not through the intelligent cable force adjusting system according to the collected data, and if so, calculating the optimal position of the pulley and controlling the balancing tension of the stay cable through the intelligent cable force adjusting system according to the collected data of the pole holding system;
s104: the pulley is controlled to move and the tension of the inhaul cable is controlled through the intelligent cable force adjusting system, so that the holding pole is in a stress balance state.
10. The strong wind resistant method of the intelligent balancing suspension pole system capable of resisting strong wind according to claim 9,
step S102 includes:
s1021: reading in a pulling force Fk of a control inhaul cable, and controlling a vertical inclination angle alpha of the inhaul cable;
s1022: calculating the horizontal stress state of the top circular pulley rail and the waist circular pulley rail;
s1023: converting the wind speed into wind load, establishing a coordinate system by taking a horizontal direction as the positive direction of an x axis, and making a horizontal force diagram of a top circular pulley rail and a waist circular pulley rail;
s1024: loosening the top and waist control inhaul cables in the same region of the wind load vector;
s1025: the resultant force of the x axis and the y axis is balanced, the standard deviation of Fk is taken as a constraint condition, 2 degrees is taken as a step length, and the cable force of the control cable in each direction is calculated in an iterative manner;
s1026: calculating a scheme that the mean value of the pulling force Fk 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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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211247000.2A CN115478731A (en) | 2022-10-12 | 2022-10-12 | Strong wind resistant intelligent balancing suspension holding pole system and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211247000.2A CN115478731A (en) | 2022-10-12 | 2022-10-12 | Strong wind resistant intelligent balancing suspension holding pole system and use method thereof |
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| CN115478731A true CN115478731A (en) | 2022-12-16 |
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