CN116192012A - Tracking type flexible photovoltaic bracket - Google Patents
Tracking type flexible photovoltaic bracket Download PDFInfo
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- CN116192012A CN116192012A CN202310268575.0A CN202310268575A CN116192012A CN 116192012 A CN116192012 A CN 116192012A CN 202310268575 A CN202310268575 A CN 202310268575A CN 116192012 A CN116192012 A CN 116192012A
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- steel cable
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 118
- 239000010959 steel Substances 0.000 claims abstract description 118
- 230000008093 supporting effect Effects 0.000 claims abstract description 32
- 230000009467 reduction Effects 0.000 claims abstract description 10
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 7
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 description 7
- 230000005684 electric field Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000005336 cracking Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000010355 oscillation Effects 0.000 description 4
- 230000006641 stabilisation Effects 0.000 description 4
- 238000011105 stabilization Methods 0.000 description 4
- 229910001018 Cast iron Inorganic materials 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000010361 irregular oscillation Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S20/00—Supporting structures for PV modules
- H02S20/30—Supporting structures being movable or adjustable, e.g. for angle adjustment
- H02S20/32—Supporting structures being movable or adjustable, e.g. for angle adjustment specially adapted for solar tracking
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
- F24S25/50—Arrangement of stationary mountings or supports for solar heat collector modules comprising elongate non-rigid elements, e.g. straps, wires or ropes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S30/00—Arrangements for moving or orienting solar heat collector modules
- F24S30/40—Arrangements for moving or orienting solar heat collector modules for rotary movement
- F24S30/42—Arrangements for moving or orienting solar heat collector modules for rotary movement with only one rotation axis
- F24S30/425—Horizontal axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S50/00—Arrangements for controlling solar heat collectors
- F24S50/20—Arrangements for controlling solar heat collectors for tracking
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a tracking type flexible photovoltaic bracket, wherein vibration reduction stabilizing devices for supporting a photovoltaic module are arranged on steel cables, each vibration reduction stabilizing device comprises four supporting swing arms, one ends of the supporting swing arms are arranged on the corresponding steel cables through spherical hinges, and the other ends of the supporting swing arms are hinged with module mounting seats; a tensioning rod is supported on the steel cable upright post in a sliding manner, a tensioning nut is rotatably mounted on a threaded section of the tensioning rod, the tensioning nut is rotatably supported on the steel cable upright post, a tensioning worm wheel is fixedly mounted on the tensioning nut, and a worm wheel and worm wheel pair is formed by a tensioning worm driven by a tensioning motor and the tensioning worm wheel; the tension rod is rotatably supported with a steel cable cross beam and a tracking worm wheel which are mutually fixedly connected, a tracking worm driven by a tracking motor and the tracking worm wheel form a worm wheel rod pair, and the tracking motor is arranged on the motor sliding plate. The photovoltaic support not only can adjust the pitching angle of the photovoltaic assembly plate, but also can ensure the stable and sufficient tension of the steel cable, and avoid the damage of the vibration of the steel cable to the photovoltaic assembly.
Description
Technical Field
The invention relates to solar photovoltaic technical equipment, in particular to a flexible photovoltaic bracket with a single-axis tracking and steel rope tensioning structure.
Background
The flexible photovoltaic bracket is characterized in that a rigid steel profile is changed into a steel strand to form a flexible rope structure, and the photovoltaic module is directly arranged on two module steel cables, so that the flexible photovoltaic bracket has the advantages of simple structure, less material consumption, light weight, short construction period and the like which are not possessed by the traditional photovoltaic bracket; the flexible photovoltaic bracket can avoid adverse factors such as site fluctuation and has stronger environmental adaptability under complex terrain conditions such as mountain lands, deserts, forest lands, ponds and the like.
The flexible photovoltaic bracket is a wind sensitive structure, and a steel cable in a stretched state can generate tension relaxation and irregular oscillation due to the change of the ambient temperature and the fluctuation and change of load such as wind load; the flexible photovoltaic support can easily generate larger deformation amplitude and irregular vibration among all steel ropes under the action of wind load, so that uncoordinated deformation of the photovoltaic module and all connection points of the steel ropes is caused, and the photovoltaic module is caused to bear the actions of torsion and shearing. Especially when the steel cable is loosened and the ambient wind speed and the wind force are larger, the oscillation amplitude and the frequency are increased, and the oscillation or vibration result is that the hidden cracking or even the breaking of the photovoltaic module is caused, so that the power generation efficiency of the photovoltaic module is directly affected. The applicant adopts a flexible photovoltaic bracket in a 300MW photovoltaic project in Xinjiang, the hidden cracking and breaking rate of the photovoltaic module is serious after one year, so that larger economic loss is caused, and the hidden cracking phenomenon of the photovoltaic module is in fact commonly existing in the current flexible photovoltaic bracket. How to keep the tension of the steel cable stable and reduce the damage of the oscillation of the steel cable to the photovoltaic module is a problem to be solved in the industry.
The traditional flexible photovoltaic support is further insufficient in that the photovoltaic module plates are fixed by the cable system, and the cable system needs large tension to provide enough supporting rigidity, so that two ends of a cable of the traditional flexible photovoltaic support are fixed on the upright posts, and the pitching angle of a photovoltaic module cannot be adjusted according to the change of the sun position, and therefore the pitching angle of the photovoltaic module cannot be adjusted according to the longitude and latitude of an installation region, the altitude difference and the sunset angle, and important factors which cannot be ignored in the generating capacity and the generating efficiency of a photovoltaic power station are also influenced.
Disclosure of Invention
Aiming at the defects in the prior art, the technical problem to be solved by the invention is to provide the tracking type flexible photovoltaic bracket, which not only can adjust the pitching angle of the photovoltaic module plate to track the height position of the sun, but also can ensure the stable and enough tensile force of the steel cable and can avoid the damage of the vibration of the steel cable to the photovoltaic module.
In order to solve the problems, the tracking type flexible photovoltaic bracket comprises a steel rope upright post, a steel rope cross beam supported on the steel rope upright post, and two steel ropes stretched on the steel rope cross beam,
the photovoltaic module comprises a steel cable, a plurality of vibration reduction stabilizing devices, a plurality of support swinging arms and a plurality of support swinging arms, wherein the vibration reduction stabilizing devices are arranged on the steel cable and used for supporting the photovoltaic module, one ends of the support swinging arms are arranged on the corresponding steel cable through spherical hinges, and the other ends of the support swinging arms are hinged to a module mounting seat; a sliding rod is fixedly arranged between the component mounting seats respectively corresponding to the two steel cables, two sliding blocks are supported on the sliding rod in a sliding manner, and a balance spring sleeved on the sliding rod is positioned between the two sliding blocks; each sliding block is hinged with a guide rod sliding sleeve, one end of a support spring guide rod is sleeved on the guide rod sliding sleeve in a sliding manner, the other end of the support spring guide rod is hinged with a support swing arm on the corresponding side, and a swing arm support spring is sleeved on the support spring guide rod;
a tensioning rod is supported on the steel cable upright post in a sliding manner, a tensioning nut is rotatably mounted on a threaded section of the tensioning rod, the tensioning nut is rotatably supported on the steel cable upright post, a tensioning worm wheel is fixedly mounted on the tensioning nut, and a worm wheel and worm wheel pair is formed by a tensioning worm driven by a tensioning motor; the tension rod is rotatably supported with a steel cable cross beam and a tracking worm wheel which are mutually and fixedly connected, a tracking worm driven by a tracking motor and the tracking worm wheel form a worm wheel rod pair, and the tracking motor is arranged on the motor sliding plate.
Further, two support swing arms mounted on the same steel cable are fixedly connected through a swing arm connecting rod. Stability of supporting the photovoltaic module is improved.
Further, the swing arm supporting spring and the balance spring are compression springs, and the elastic coefficient of the swing arm supporting spring is larger than that of the balance spring. Further enhancing the vibration reduction and stabilization effects.
Further, the spherical hinge comprises a hinged ball head movably arranged between a hinged ball cover and a spherical hinge seat, and the spherical hinge seat is clamped on the steel cable through a steel cable clamping cover. The ball hinged support and/or the hinged ball cover are/is provided with an antifriction pad which is wrapped on the hinged ball head.
Further, the tension rod is a step shaft, one end part of the tension rod is a threaded section, the other end part of the tension rod is a cylindrical section, and a sliding section is arranged between the threaded section and the cylindrical section of the tension rod; the sliding section of the tension rod is a prismatic section, and the prismatic section is axially and slidably supported on the steel cable upright post through a tension rod sliding sleeve.
Further, the tensioning nut is rotatably arranged on a bearing seat through a nut bearing, and the bearing seat is fixedly arranged on the steel cable upright post; the tensioning motor is a stepping motor or a servo motor and is fixedly arranged on the steel cable upright post through a tensioning motor seat.
Further, the motor sliding plate is slidably supported on a tracking motor seat through a dovetail sliding pair, the tracking motor seat is fixedly arranged on the steel cable upright post, and the tracking motor is a stepping motor or a servo motor.
Further, the tracking worm wheel and the steel cable beam which are fixedly connected with each other are rotatably supported at the position of the cylindrical section of the tension rod through the worm wheel sliding sleeve, and the outer end flange of the cylindrical section of the tension rod is positioned at the inner side of the steel cable beam.
Further, the rope ends of the steel rope are connected to the steel rope cross beam through a steel rope tensioner.
In the structure, the tracking worm wheel and the steel cable cross beam which are fixedly connected with each other are rotatably supported on the tension rod, and the tracking motor drives the steel cable cross beam to swing through the worm gear pair, so that the inclination angles of planes where the two steel cables are located are changed along with the swing of the steel cable cross beam, the pitching angle of the photovoltaic module is changed, the tracking of the solar altitude angle is realized, and more solar ray irradiation amount and photovoltaic power generation amount are obtained.
The tensioning nut is rotatably supported on the upright post, the tensioning motor drives the tensioning nut to rotate through the worm gear pair, the tensioning nut rotates to enable the tensioning rod to outwards move, the outwards moved tensioning rod pulls the assembly steel rope through the steel rope beam, the steel rope achieves tensioning effect, tensioning stress of the steel rope is stabilized and improved, bearing capacity and structural rigidity of the steel rope are improved, and vibration amplitude and frequency of the steel rope are reduced; simultaneously, the synchronism of the two steel ropes is improved, and the irregular fluctuation deformation amplitude between the two steel ropes is reduced.
The tracking structure can automatically change the pitching angle of the photovoltaic module by driving the worm and gear pair through the tracking motor according to the height position of the sun; the tensioning structure can realize automatic tensioning of the steel cable tensioning force, and the steel cable stress sensor can drive the tensioning motor to work to automatically tighten the steel cable according to the change of the steel cable tensioning stress value. Therefore, the flexible photovoltaic bracket with the structure is particularly suitable for automatic control and centralized management of a large photovoltaic electric field.
Because the photovoltaic module is supported on the module steel cable through symmetrically arranged supporting swing arms, and the supporting spring guide rod hinged on the supporting swing arms is sleeved with the swing arm supporting spring, and a balance spring is further arranged between the sliding blocks used for hinging the guide rod sliding sleeve, the module longitudinal beam of the photovoltaic module support, the symmetrically arranged supporting swing arms and the two parallel module steel cables form a nearly parallelogram connecting rod mechanism, a translation supporting structure of the photovoltaic module is formed, and the translation supporting structure can reduce the influence of fluctuation differences among different steel cables on the photovoltaic module; on the other hand, the two swing arm supporting springs and the balance spring form a good buffering and vibration reducing structure, adverse effects of the oscillation of the steel ropes on the photovoltaic module are effectively prevented, and particularly, the swing arm supporting spring on one side, the balance spring and the swing arm supporting spring on the other side form a series spring structure, and the series spring structure can form reverse fluctuation between the two steel ropes, so that the influence of fluctuation differences of the different steel ropes on the photovoltaic module is stabilized and reduced, and the balance supporting effect of the steel ropes on the photovoltaic module is stabilized.
And the supporting swing arm is arranged on the assembly steel cable through the spherical hinge, so that the influence of transverse fluctuation and longitudinal fluctuation of the steel cable on the photovoltaic assembly can be eliminated by adopting the spherical hinge structure.
By adopting the structure, the steel cable can keep stable and enough tension force, adverse effect of fluctuation of the steel cable on the photovoltaic module is avoided, hidden cracking and breakage of the battery piece of the photovoltaic module are effectively avoided, and the structure is also convenient for implementing automatic regulation and control and centralized management on the support unit of the large-scale photovoltaic electric field.
Drawings
The following description of the tracking flexible photovoltaic support of the present invention is further provided with reference to the accompanying drawings and the detailed description.
FIG. 1 is a schematic view of a partial perspective view of one embodiment of a tracking flexible photovoltaic support of this invention;
FIG. 2 is a schematic view of the mounting structure of the photovoltaic module and vibration reduction stabilization device of the embodiment shown in FIG. 1;
FIG. 3 is a front elevational view of the vibration damping stabilization device of FIG. 2;
FIG. 4 is a schematic top view of the structure of FIG. 3;
FIG. 5 is a cross-sectional structural view of the ball and socket joint of FIG. 2;
FIG. 6 is a schematic view of the installation of the cable tensioning mechanism and tracking drive mechanism of the embodiment of FIG. 1;
FIG. 7 is an enlarged view of the section A-A of FIG. 6;
FIG. 8 is a block diagram of the tension rod of FIG. 6;
fig. 9 is an enlarged structural view of section B-B in fig. 6.
In the figure, 1-a steel rope upright post; 2-a steel cable tensioning mechanism, 201-a tensioning motor seat, 202-a tensioning motor, 203-a tensioning worm, 204-a tensioning worm wheel, 205-a tensioning pull rod, 206-a tensioning nut, 207-a nut bearing, 208-a bearing seat and 209-a pull rod sliding sleeve; 3-tracking driving mechanism, 301-tracking motor base, 302-tracking motor, 303-tracking worm, 304-tracking worm wheel, 305-worm wheel sliding sleeve, 306-sliding gasket and 307-motor sliding plate; 4-a wire rope cross beam; 5-a wire rope tensioner; 6-vibration reduction and stabilization device, 601-component mounting seat, 602-supporting swing arm, 603-spherical hinge, 604-swing arm supporting spring, 605-supporting spring guide rod, 606-balance spring, 607-slide bar, 608-swing arm connecting rod, 609-slide block, 610-guide rod sliding sleeve, 611-hinged ball head, 612-hinged ball cover, 613-antifriction pad, 614-hinged ball seat, 615-steel cable clamp cover; 7-photovoltaic modules, 701-photovoltaic cell panels, 702-module crossbeams and 703-module stringers; 8-assembly steel cables; 9-upright post inhaul cable.
Detailed Description
The tracking flexible photovoltaic support shown in fig. 1 comprises two cable uprights 1 (fig. 1 shows a partial three-dimensional structure comprising one cable upright, while the other opposite cable upright is omitted), which are mutually aligned, the cable uprights 1 being implanted deep on the foundation. Each steel rope upright 1 is supported with a steel rope cross beam 4 through a steel rope tensioning mechanism 2 and a tracking driving mechanism 3, two assembly steel ropes 8 are tensioned in parallel between the two steel rope cross beams 4 supported on the corresponding steel rope upright 1, and two ends of each assembly steel rope 8 are fixedly connected with the steel rope cross beam 4 at the corresponding end through a steel rope tensioner 5. The assembly wire rope 8 is a prestressed wire, and the wire rope tensioner 5 is a conventional rigging turnbuckle, so that the assembly wire rope 8 obtains a tensioning force. A vertical column stay rope 9 is outwards and obliquely stayed on the steel cable vertical column 1, the other end of the vertical column stay rope 9 is anchored in a foundation, a photovoltaic module 7 is supported on two parallel tensioned module steel cables 8 through a plurality of vibration reduction stabilizing devices 6, and the photovoltaic module 7 is inclined to the ground and faces the sun. And a large-area photovoltaic electric station field is formed by a plurality of photovoltaic bracket units.
As shown in fig. 2, 3 and 4, the photovoltaic module 7 includes a photovoltaic panel 701, a module beam 702 and a module longitudinal beam 703, wherein the module beam 702 and the module longitudinal beam 703 are mutually perpendicular and fixedly connected in a staggered manner to form a module support, and the photovoltaic panel 701 is fixedly mounted on the module support. Four component mounting seats 601 are fixedly arranged on the lower side face of the component support through bolts, and the four component mounting seats 601 are located at the four corners of the rectangular component support. Each assembly mounting seat 601 is hinged with a supporting swing arm 602, a sliding rod 607 is fixedly arranged between two assembly mounting seats 601 corresponding to two steel cables 8 respectively, and the two assembly mounting seats 601 are arranged on the same assembly longitudinal beam 703. Two sliding blocks 609 are slidably supported on the sliding block 607, a balance spring 606 is arranged between the two sliding blocks 609, the balance spring 606 is sleeved on the sliding block 607, and two ends of the balance spring 606 correspond to the sliding blocks 609 respectively. The other ends opposite to the hinged ends of the supporting swing arms 602 are respectively provided with a spherical hinge 603, and the two spherical hinges 603 are respectively and fixedly arranged on the corresponding assembly steel cables 8. Each sliding block 609 is hinged with a guide rod sliding sleeve 610, one end of the support spring guide rod 605 is sleeved on the guide rod sliding sleeve 610 in a sliding manner, the other end of the support spring guide rod 605 is hinged with a corresponding support swing arm 602, and the support spring guide rod 605 is sleeved with a swing arm support spring 604. Two support swing arms 602 on the same assembly cable 8 are fixedly connected to each other by a swing arm link 608.
As shown in fig. 5, a hinged ball head 611 is fixedly installed at the lower end of the supporting swing arm 602, the ball head of the hinged ball head 611 is movably installed on a ball socket 614 through a hinged ball cover 612, and an antifriction pad 613 is provided between the ball socket 614, the hinged ball cover 612 and the hinged ball head 611, and the antifriction pad 613 is made of polyurethane material. The ball-and-socket 614 is fixedly clamped to the assembly cable 8 by a cable clamp cap 615.
As shown in fig. 6, a tension rod 205 is supported on the cable upright 1 so as to be axially slidable by a tension rod slide 209, the tension rod slide 209 is locked to the cable upright 1 by an axial bolt, and the tension rod slide 209 is made of wear-resistant cast iron. A tensioning nut 206 is screwed on the extended thread section of the tensioning rod 205, the tensioning nut 206 is arranged on a bearing seat 208 through a nut bearing 207, and the bearing seat 208 is fixedly arranged on the outer side surface of the steel cable upright 1. The nut bearing 207 adopts a bearing combination structure, which comprises a thrust roller bearing and radial ball bearings positioned at both sides of the thrust roller bearing.
A tension worm wheel 204 is fixedly mounted on the outer end of the tension nut 206. A tensioning motor seat 201 is fixedly mounted on the outer side face of the steel cable upright post 1, a tensioning motor 202 is mounted on the tensioning motor seat 201, a tensioning worm 203 is connected to the output shaft end of the tensioning motor 202 through a coupler, the tensioning worm 203 is rotatably supported on the tensioning motor seat 201, and a worm and gear pair is formed by the tensioning worm wheel 203 and the tensioning worm 203. The tensioning motor 202 is a stepper motor or a servo motor.
The inner end of the tension rod 205 is a cylindrical section, a tracking worm wheel 304 is swingably supported on the cylindrical section of the tension rod 205 through a worm wheel sliding sleeve 305, and the worm wheel sliding sleeve 305 is made of wear-resistant cast iron. The tracking motor 302 is fixedly mounted on the motor slide plate 307, the tracking worm 303 is rotatably supported on the motor slide plate 307, an output shaft of the tracking motor 302 is connected with the tracking worm 303 through a coupler, and the tracking worm wheel 304 and the tracking worm 303 form a worm-gear pair. The motor sliding plate 307 is slidably supported on the tracking motor base 301 through a dovetail sliding pair, the tracking motor base 301 is fixedly mounted on the steel cable upright post 1, and the tracking motor 302 is a stepping motor or a servo motor.
The inner side surface of the tracking worm wheel 304 is fixedly connected with a steel cable beam 4, the flange at the outer end of the cylindrical section of the tension rod 205 is positioned on the side surface of the steel cable beam 4, a sliding gasket 306 is padded between the flange and the side surface of the steel cable beam 4, and the sliding gasket 306 is made of wear-resistant cast iron. The tension rod 205 pulls the wire rope cross member 4 by its outer end flange.
The ends of the two assembly steel cables 8 are fastened at the two ends of the steel cable cross beam 4 through the steel cable tensioner 5, and the steel cable tensioner 5 is a common cable turnbuckle in the market.
As shown in fig. 7, the pull rod sliding hole on the pull rod sliding sleeve 209 fixedly installed on the steel cable upright post 1 is a rectangular through hole, and the sliding of the pull rod 205 is located between the threaded section and the cylindrical section, and the sliding section is a rectangular columnar structure, and the rectangular column is positively and slidably inserted into the rectangular through hole of the pull rod sliding sleeve 209. The sliding section of the tension rod 205 can be a rectangular column, or a prismatic structure such as a triangular prism, or a structure such as a spline shaft, a key shaft, etc., and the shape of the through hole of the tension rod sliding sleeve 209 corresponds to the rectangular column.
As shown in fig. 8, the tension rod 205 adopts a stepped shaft structure, the front section is a threaded section, the middle section is a sliding section, the rear section is a cylindrical section, and the outer end of the cylindrical section is a hooking flange.
As shown in fig. 9, the electric slide plate 307 is slidably supported on the tracking motor base 301 in a conventional dovetail sliding structure, so that the electric slide plate 307 can slide in a direction parallel to the axial center of the tension rod 205; of course, the sliding structure can also adopt a sliding guide rail structure.
While the tension motor 202 and the tracking motor 302 adopt stepping motors or servo motors, a strain tension sensor is arranged on the assembly steel cable 8, a solar tracker is arranged on the photovoltaic assembly, the strain tension sensor and the solar tracker are electrically connected with an electric field controller, and the electric field controller adopts a CPU controller. The electric field controller can control the action of the tensioning motor 202 and the tracking motor 302 according to the strain tension sensor and the solar tracker to automatically adjust the tension of the steel cable and the inclination angle of the photovoltaic module, so that the automatic regulation and the centralized management of the support unit of the large photovoltaic electric field are convenient, and the photovoltaic power generation efficiency is effectively improved.
Claims (10)
1. The utility model provides a tracking type flexible photovoltaic support, includes cable stand (1), supports cable crossbeam (4) on cable stand (1), and two cable (8) of stretch-draw on cable crossbeam (4), its characterized in that:
a plurality of vibration reduction stabilizing devices (6) for supporting the photovoltaic modules (7) are arranged on the steel ropes (8), each vibration reduction stabilizing device (6) comprises four supporting swing arms (602), one ends of the supporting swing arms (602) are arranged on the corresponding steel ropes (8) through spherical hinges (603), and the other ends of the supporting swing arms (602) are hinged to module mounting seats (601); a sliding rod (607) is fixedly arranged between the component mounting seats (601) corresponding to the two steel cables (8), two sliding blocks (609) are slidably supported on the sliding rod (607), and a balance spring (606) sleeved on the sliding rod (607) is positioned between the two sliding blocks (609); a guide rod sliding sleeve (610) is hinged on each sliding block (609), one end of a support spring guide rod (605) is sleeved on the guide rod sliding sleeve (610) in a sliding manner, the other end of the support spring guide rod (605) is hinged on a support swing arm (602) at the corresponding side, and a swing arm support spring (604) is sleeved on the support spring guide rod (605);
a tension rod (205) is slidably supported on the steel cable upright post (1), a tension nut (206) is rotatably mounted on a threaded section of the tension rod (205), the tension nut (206) is rotatably supported on the steel cable upright post (1), a tension worm wheel (204) is fixedly mounted on the tension nut (206), and a worm wheel and worm pair is formed by a tension worm (203) driven by a tension motor (202) and the tension worm wheel (204); the tension rod (205) is rotatably supported with a steel cable cross beam (4) and a tracking worm wheel (304) which are mutually and fixedly connected, a tracking worm (303) driven by a tracking motor (302) and the tracking worm wheel (304) form a worm wheel rod pair, and the tracking motor (302) is arranged on a motor sliding plate (307).
2. The tracking flexible photovoltaic support of claim 1, wherein: two supporting swing arms (602) mounted on the same steel cable (8) are fixedly connected through a swing arm connecting rod (608).
3. The tracking flexible photovoltaic support of claim 1, wherein: the swing arm supporting springs (604) and the balance springs (606) are compression springs, and the elastic coefficient of the swing arm supporting springs (604) is larger than that of the balance springs (606).
4. The tracking flexible photovoltaic support of claim 1, wherein: the spherical hinge (603) comprises a hinged ball head (611), the hinged ball head (611) is movably arranged between a hinged ball cover (612) and a spherical hinge seat (614), and the spherical hinge seat (614) is clamped on the steel cable (8) through a steel cable clamping cover (615).
5. The tracking flexible photovoltaic support of claim 5, wherein: the ball hinge seat (614) and/or the hinged ball cover (612) are/is provided with an antifriction pad (613), and the antifriction pad (613) is wrapped on the hinged ball head (611).
6. The tracking flexible photovoltaic support of claim 1, wherein: the tension rod (205) is a step shaft, one end part of the tension rod (205) is a threaded section, the other end part of the tension rod (205) is a cylindrical section, and a sliding section is arranged between the threaded section and the cylindrical section of the tension rod (205); the sliding section of the tension rod (205) is a prismatic section which is axially slidably supported on the steel cable upright (1) through a rod sliding sleeve (209).
7. The tracking flexible photovoltaic support of claim 1, wherein: the tensioning nut (206) is rotatably mounted on a bearing seat (208) through a nut bearing (207), and the bearing seat (208) is fixedly mounted on the steel cable upright post (1); the tensioning motor (202) is a stepping motor or a servo motor, and the tensioning motor (202) is fixedly arranged on the steel cable upright post (1) through a tensioning motor seat (201).
8. The tracking flexible photovoltaic support of claim 1, wherein: the motor sliding plate (307) is slidably supported on the tracking motor base (301) through a dovetail sliding pair, the tracking motor base (301) is fixedly mounted on the steel cable upright post (1), and the tracking motor (302) is a stepping motor or a servo motor.
9. The tracking flexible photovoltaic support of claim 1, wherein: the tracking worm wheel (304) and the steel cable beam (4) which are fixedly connected with each other are rotatably supported at the cylindrical section position of the tension rod (205) through the worm wheel sliding sleeve (305), and the outer end flange of the cylindrical section of the tension rod (205) is positioned at the inner side of the steel cable beam (4).
10. The tracking flexible photovoltaic support of claim 1, wherein: the rope end of the steel rope (8) is connected to the steel rope cross beam (4) through a steel rope tensioner (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310268575.0A CN116192012A (en) | 2023-03-20 | 2023-03-20 | Tracking type flexible photovoltaic bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310268575.0A CN116192012A (en) | 2023-03-20 | 2023-03-20 | Tracking type flexible photovoltaic bracket |
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| CN116192012A true CN116192012A (en) | 2023-05-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116639224A (en) * | 2023-06-25 | 2023-08-25 | 上海勘测设计研究院有限公司 | Floating type rigid photovoltaic supporting system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116639224A (en) * | 2023-06-25 | 2023-08-25 | 上海勘测设计研究院有限公司 | Floating type rigid photovoltaic supporting system |
| CN116639224B (en) * | 2023-06-25 | 2024-03-01 | 上海勘测设计研究院有限公司 | Floating type rigid photovoltaic supporting system |
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