Flexible driving multi-group flat single-shaft tracking support

Abstract

The utility model belongs to the field of photovoltaic equipment, and particularly relates to a flexible driving multi-group flat single-shaft tracking support, which comprises a plurality of groups of photovoltaic supports, photovoltaic assemblies are arranged on the photovoltaic supports, the plurality of groups of photovoltaic supports are arranged in parallel at intervals, at least one linkage device is arranged between every two adjacent groups of photovoltaic supports, and the linkage devices are arranged on the photovoltaic supports. Rigid chain driving devices for driving the photovoltaic supports at the two ends to rotate are symmetrically arranged between the photovoltaic supports at the two ends, each rigid chain driving device comprises a guide wheel assembly, a transmission steel wire rope is wound around each guide wheel assembly, and one end of each transmission steel wire rope is in transmission connection with the corresponding photovoltaic support; the other ends of the transmission steel wire ropes are in transmission connection with rigid chain driving assemblies; the transmission device is reasonable in structural design, convenient to operate, accurate and stable in transmission, high in transmission efficiency, high in bearing capacity, high in use stability, long in service life and suitable for severe environments.

Description

TECHNICAL FIELD

[0001] The utility model belongs to photovoltaic equipment field, concretely relates to a flexible drive multi-group flat single-axis tracking support. BACKGROUND

[0002] With the gradual expansion of domestic photovoltaic industry scale, the land used for photovoltaic power station construction is more and more, how to improve the power generation of photovoltaic power station with the same land area, increase the yield rate is the common research topic of photovoltaic industry, among them, photovoltaic panel relies on absorbing sunlight to convert electric energy, the irradiation intensity of sunlight directly affects the power generation of photovoltaic panel, the sun's irradiation angle of each region in spring, summer, autumn and winter four seasons is inconsistent.

[0003] At present, the commonly used is fixed inclination photovoltaic support, the cost is low, the inclination keeps a constant value in the whole life cycle, cannot be adjusted according to the corresponding condition and need, cannot fully exert the power generation capacity of photovoltaic power station, under the condition of large-scale construction of photovoltaic power station in China, great waste is caused, so improving the photoelectric conversion efficiency is the most important in the development of photovoltaic.

[0004] The flat single-axis linkage type photovoltaic tracking system disclosed by the patent with the publication number CN209642619U uses steel wire ropes and linkage rods to build a triangular structure, changes the length of the two sides corresponding to the steel wire ropes, promotes the change of the triangular shape, and then drives the linkage rod to move left and right along its own length direction, thereby driving the four swing rods to swing synchronously, realizing the synchronous adjustment of the tracking angle of the photovoltaic panel.

[0005] However, when this structure is applied to a plurality of flat single-axis supports to adjust the tracking angle of the photovoltaic panel, the following shortcomings exist.

[0006] Firstly, the triangular shape composed of steel wire ropes and linkage rods is easy to stretch and relax under external force, and the triangular shape is easy to change after long-term use, which affects the movement precision of the linkage rod and causes the tracking angle deviation of the photovoltaic panel.

[0007] Secondly, the power transmission of the triangular structure of the steel wire rope and the linkage rod is indirect, and the linkage rod needs to be driven by changing the triangular shape, which causes large energy loss and low transmission efficiency in the process, and it is difficult to accurately control the movement of the linkage rod and the swing rod, so the tracking angle of the photovoltaic panel cannot be accurately adjusted.

[0008] Thirdly, when there is environmental interference such as wind, the steel wire rope in the above structure is easy to swing greatly, which causes the deformation of the triangular structure to be too large, affects the normal tracking of the photovoltaic panel, and even may damage the photovoltaic panel and the support structure.

[0009] Fourth, the steel wire rope and linkage rod triangular structure load bearing capacity is limited, for large-scale photovoltaic array or heavier photovoltaic panel, may not provide enough driving force and support force, limit the system application range and scale. Utility model content

[0010] The utility model provides a flexible drive multi-group flat single shaft tracking support which has reasonable structure design, convenient operation, accurate and stable transmission, high transmission efficiency, strong bearing capacity, high use stability, long service life and adaptability to harsh environment.

[0011] To solve the above technical problems, the utility model provides a technical scheme as follows:

[0012] A flexible drive multi-group flat single shaft tracking support, comprising a plurality of photovoltaic supports, wherein each photovoltaic support is provided with a photovoltaic module, and the plurality of photovoltaic supports are arranged in parallel and at intervals, at least one linkage device is arranged between adjacent two photovoltaic supports, and a rigid chain drive device for driving the rotation of the photovoltaic supports at both ends is symmetrically arranged between the photovoltaic supports at both ends.

[0013] The utility model further optimizes the above technical scheme as follows:

[0014] The rigid chain drive assembly comprises a chain storage shell, a chain winding seat is arranged in the chain storage shell, two rigid chain grooves are symmetrically arranged in the chain winding seat, rigid chains which can slide along the rigid chain grooves are arranged in the rigid chain grooves, the two rigid chains are mutually buckled or separated, the free ends of the two rigid chains are arranged outside the chain storage shell and are fixedly connected with the same push-pull head, the other end of the push-pull head is connected with the transmission steel wire rope, a driving sprocket is arranged on the chain winding seat outside one of the rigid chains, the driving sprocket is meshed with the corresponding rigid chain on one side, the driving sprocket is drivingly connected with a self-locking speed reducer, and the self-locking speed reducer is fixedly installed on the chain storage shell.

[0015] Further optimization: the guide wheel assembly comprises a mounting frame, a guide wheel is rotatably arranged on the mounting frame, and the transmission steel wire rope is wound on the guide wheel.

[0016] Further optimization: the photovoltaic support comprises a main beam, a plurality of purlins for mounting photovoltaic modules are arranged above the main beam, and a plurality of column assemblies for supporting the rotation of the main beam are sequentially and intervaliy arranged below the main beam along the axial length direction of the main beam.

[0017] Further optimization: one end of the transmission steel wire rope is fixedly connected with a first transmission disc, and the first transmission disc is semicircular, and the first transmission disc is fixedly installed at the bottom of the corresponding main beam.

[0018] Further optimization: the linkage device comprises a steering wheel assembly, and a linkage steel wire rope is wound around the steering wheel assembly; the two ends of the linkage steel wire rope are respectively in transmission connection with corresponding photovoltaic support.

[0019] Further optimization: the two ends of the linkage steel wire rope are respectively fixedly connected with second transmission discs, and the second transmission discs are semicircular; the second transmission discs are fixedly installed at the bottom of the corresponding main beam.

[0020] Further optimization: the steering wheel assembly comprises a fixing frame, and a steering wheel is rotatably connected to the fixing frame; the linkage steel wire rope is wound around the steering wheel.

[0021] In the utility model, the rigid chain in the rigid chain driving device is rigid, is not easy to deform or damage in the power transmission process, can more stably transmit power compared with full flexible transmission components; meanwhile, the cooperation of the guide wheel assembly and the transmission steel wire rope guarantees a certain flexibility, and also enhances the structural stability of the system, so that the normal rotation and tracking function of the photovoltaic support can also be maintained under bad environment such as strong wind, sand and the like, the failure occurrence probability is reduced, and the service life of the system is prolonged.

[0022] In the utility model, the self-locking type speed reducer is meshed with the rigid chain through the driving sprocket to transmit power, the power transmission path is direct and efficient, and the energy loss is small, so that the driving equipment with smaller power can be used to drive multiple photovoltaic supports, the equipment energy consumption is reduced, the maintenance cost caused by poor power transmission is reduced, and in addition, the meshing transmission mode of the rigid chain and the driving sprocket guarantees the accuracy and stability of power transmission.

[0023] In the utility model, the self-locking function of the self-locking type speed reducer can accurately control the movement of the rigid chain, and then accurately control the rotation angle of the photovoltaic support, so that the tracking angle of the photovoltaic module 2 can be accurately adjusted, the needs of different time periods and different seasons of solar position change are met, and the power generation efficiency and power generation quality of the photovoltaic system are further improved.

[0024] In the utility model, the rigid chain has high bearing capacity and can bear large load pressure, so that no matter whether it is heavy load caused by large-area photovoltaic panel installation or additional force generated by the support under bad weather conditions (such as strong wind, snowstorm and the like), the rigid chain can stably support and drive, ensure the reliability of the support system, effectively avoid photovoltaic support failure and photovoltaic power generation interruption caused by insufficient bearing capacity, and guarantee the long-term stable operation of the photovoltaic power generation project.

[0025] The utility model is further illustrated below in combination with the drawings and embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0027] Fig. 1 It is the schematic diagram of the overall structure of the embodiment of the utility model;

[0028] Fig. 2 It is the schematic diagram of the overall structure of the second state of the embodiment of the utility model;

[0029] Fig. 3 It is the sectional view of the rigid chain drive assembly in the embodiment of the utility model.

[0030] In the drawing: 1-photovoltaic support;11-main beam;111-beam segment;112-connector;12-purlin;13-stand column assembly;131-bearing;132-bearing seat;133-support column;2-photovoltaic module;3-linkage device;31-turning wheel assembly;311-fixing frame;312-turning wheel;32-linkage steel wire rope;33-second transmission disc;4-guide wheel assembly;41-mounting frame;42-guide wheel;5-transmission steel wire rope;6-rigid chain drive assembly;61-chain storage shell;62-rigid chain;63-pull head;64-self-locking reduction motor;65-rigid chain groove;66-driving sprocket;7-first transmission disc. DETAILED DESCRIPTION

[0031] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only some embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0032] As Figs. 1-3As shown, a flexible drive multi-group flat single-axis tracking support includes a plurality of photovoltaic support groups 1, each of which is provided with a photovoltaic module 2, and the plurality of photovoltaic support groups 1 are arranged in parallel and at intervals, at least one linkage device 3 is arranged between the two adjacent photovoltaic support groups 1, and the two ends of the photovoltaic support groups 1 are symmetrically provided with a rigid chain drive device for driving the two ends of the photovoltaic support groups 1 to rotate, the rigid chain drive device includes a guide wheel assembly 4, a transmission steel wire rope 5 is wound on the guide wheel assembly 4, one end of the transmission steel wire rope 5 is in transmission connection with the corresponding photovoltaic support group 1, and the other end of the transmission steel wire rope 5 is in transmission connection with a rigid chain drive assembly 6.

[0033] The rigid chain drive assembly 6 includes a chain storage shell 61, a chain winding seat is arranged in the chain storage shell 61, two rigid chain grooves 65 are symmetrically arranged in the chain winding seat, a rigid chain 62 that can slide along the rigid chain groove 65 is arranged in each of the rigid chain grooves 65, and the two rigid chains 62 are mutually engaged or separated, the free ends of the two rigid chains 62 are both arranged to pass through the chain storage shell 61 and are fixedly connected with the same push-pull head 63, the push-pull head 63 is connected with the transmission steel wire rope 5, a drive sprocket 66 is arranged on the chain winding seat outside one of the rigid chains 62, and the drive sprocket 66 is engaged with the corresponding rigid chain 62 on one side, the drive sprocket 66 is in transmission connection with a self-locking speed reducer motor 64, and the self-locking speed reducer motor 64 is fixedly installed on the chain storage shell 61.

[0034] In this way, first, the rigid chain 62 in the rigid chain drive device is strong in rigidity and is not easy to deform or damage in the power transmission process, compared with a fully flexible transmission component, it can more stably transmit power; at the same time, the cooperation of the guide wheel assembly 4 and the transmission steel wire rope 5 ensures a certain flexibility while also enhancing the structural stability of the system, so that the photovoltaic support group 1 can maintain normal rotation and tracking function in harsh environments such as strong wind, sand and dust, reduce the probability of failure, and prolong the service life of the system.

[0035] Secondly, the self-locking speed reducer motor 64 transmits power by engaging with the rigid chain 62 through the drive sprocket 66, the power transmission path is direct and efficient, the energy loss is small, so that a smaller power driving device can be used to drive the plurality of photovoltaic support groups 1, thereby reducing the equipment energy consumption and the maintenance cost caused by poor power transmission, in addition, the engagement transmission mode of the rigid chain 62 and the drive sprocket 66 ensures the accuracy and stability of power transmission.

[0036] Thirdly, the self-locking function of the self-locking speed reducer motor 64 can accurately control the movement of the rigid chain 62, and further accurately control the rotation angle of the photovoltaic support group 1, so as to accurately adjust the tracking angle of the photovoltaic module 2, meet the needs of different time periods and different seasons of the sun position change, and further improve the power generation efficiency and power generation quality of the photovoltaic system.

[0037] Finally, the rigid chain 62 has high load capacity and can withstand large load pressure, so it can stably support and drive no matter whether it is heavy load caused by large-area photovoltaic panel installation or additional force generated by the support under adverse weather conditions (such as strong wind, heavy snow, etc.), ensuring the reliability of the support system and effectively avoiding problems such as photovoltaic support 1 failure and photovoltaic power generation interruption caused by insufficient load capacity, thereby ensuring the long-term stable operation of the photovoltaic power generation project.

[0038] The photovoltaic module 2 is a component known to those skilled in the art, and its structure and principle are known to those skilled in the art, so it is not described in detail in this embodiment.

[0039] The rigid chain 62 is a component known to those skilled in the art, and its structure and principle are known to those skilled in the art, so it is not described in detail in this embodiment.

[0040] In this embodiment, the inner chain plate and the outer chain plate in the rigid chain 62 are made of carbon steel, and are subjected to quenching and tempering treatment. The pin shaft and the sleeve in the rigid chain 62 are made of alloy steel, and the surface is subjected to chrome plating treatment.

[0041] The rigid chain groove 65 includes a spiral winding groove and a guide groove connected with the winding groove, and the outer end of the guide groove is in a straight line shape.

[0042] In this way, first, the spiral winding groove can increase the winding length of the rigid chain in the limited chain storage shell 61 space, reduce the length direction space occupation, make the equipment more compact, and optimize the layout, reduce the land occupation area, and improve the space utilization rate in the application of the inclined single-axis tracking support.

[0043] Secondly, the spiral winding groove allows the rigid chain 62 to be orderly wound along the spiral track, avoiding entanglement, knotting or accumulation, ensuring orderly winding, facilitating subsequent release and use, reducing chain jamming and other failures, and improving system reliability.

[0044] Thirdly, the guide groove is connected with the winding groove and has a straight line shape at the outer end, which provides accurate guidance for the rigid chain 62 from winding to stretching and driving, allows the rigid chain 62 to enter the guide groove from the spiral winding groove and adjust to a straight line motion state, and leave the chain storage shell 61 in a predetermined straight line direction, thereby ensuring the angle adjustment accuracy of the corresponding photovoltaic support 1, and the straight line part of the guide groove can ensure the motion stability of the rigid chain 62 when it is stretched out, limit the lateral movement, make the rigid chain 62 stretch linearly, reduce shaking and deviation, improve the stability of the driving system, reduce the wear of the rigid chain 62 and the driving sprocket 66 and other components, prolong the service life of the equipment, and ensure the accurate tracking of the photovoltaic module 2 to the sun.

[0045] In the embodiment, the self-locking speed reducer motor 64 is a worm gear speed reducer motor.

[0046] The worm gear speed reducer motor is a prior art known to those skilled in the art, and its structure and principle are known to those skilled in the art, so it is not described in detail in the embodiment.

[0047] In the embodiment, the pile is fixedly installed on the ground.

[0048] The guide wheel assembly 4 comprises a mounting frame 41, and a guide wheel 42 is rotatably arranged on the mounting frame 41, and the transmission steel wire rope 5 is wound on the guide wheel 42.

[0049] In this way, first, the guide wheel 42 can accurately guide the steel wire rope, stabilize the transmission path, avoid deviation and winding, make the photovoltaic support 1 rotate as expected, realize accurate control of the tracking angle of the photovoltaic panel, and ensure normal operation of the driving system.

[0050] Secondly, the guide wheel 42 and the transmission steel wire rope 5 are in rolling friction, the friction is small, the wear of the transmission steel wire rope 5 can be reduced, the service life of the transmission steel wire rope 5 is prolonged, the mounting frame 41 is stable, the stability of the guide wheel assembly 4 and the whole driving system is enhanced, and the risk of system failure caused by external force interference is reduced.

[0051] Thirdly, the guide wheel 42 can also flexibly change the transmission direction of the force, reasonably arrange the steel wire rope, balance the tension, and improve the flexibility and adaptability of the driving system.

[0052] In the embodiment, the pile is fixedly connected to the bottom of the mounting frame 41, and the pile is fixedly installed on the ground.

[0053] The photovoltaic support 1 comprises a main beam 11, a plurality of purlins 12 for installing photovoltaic modules 2 are arranged above the main beam 11, and a plurality of column assemblies 13 for supporting rotation of the main beam 11 are arranged in the length direction of the axis of the main beam 11 in sequence and at intervals.

[0054] The main beam 11 comprises at least one beam segment 111, and adjacent beam segments 111 are connected together through connecting pieces 112.

[0055] In this way, first, the main beam 11 is divided into a plurality of beam segments 111, which can be more conveniently transported and assembled on site, reducing the difficulty and cost of transportation; secondly, the number and length of the beam segments 111 can be flexibly adjusted according to actual needs, adapting to different sites and photovoltaic panel arrangement requirements; thirdly, if a beam segment 111 has a problem, the beam segment 111 can be replaced individually without the need to replace the main beam 11 as a whole, reducing maintenance costs; in addition, it is convenient to subsequently add or reduce beam segments 111 as needed to meet changing needs.

[0056] The connecting piece 112 comprises two H-shaped connecting plates arranged in opposition, the two H-shaped connecting plates are connected together through a plurality of bolts, and the two ends of the H-shaped connecting plates are respectively connected together with the corresponding beam segment 111 through a plurality of bolts.

[0057] In this way, firstly, the design of the H-shaped connecting plate can better adapt to the shape and structure of the beam segment 111, increasing the stability and reliability of the connection; secondly, the use of bolts makes the assembly and disassembly of the beam segment 111 more convenient, not only improving the construction efficiency, but also facilitating the maintenance and replacement of the beam segment 111.

[0058] The column assembly 13 comprises a bearing 131 fixedly sleeved on the main beam 11, and a bearing seat 132 fixedly sleeved on the outer side of the bearing 131.

[0059] The bearing 131 is made of high polymer material.

[0060] In this way, firstly, the high polymer material is usually lighter than metal, which helps to reduce the weight of the overall structure; secondly, the high polymer material has good self-lubricating property, reducing friction and wear and tear, and reducing maintenance costs; thirdly, the high polymer material can resist the erosion of various chemicals, prolonging the service life.

[0061] The bottom of the bearing seat 132 is fixedly connected with a support column 133.

[0062] In the embodiment, the end of the support column 133 away from the bearing seat 132 is fixedly connected with a pile foundation.

[0063] In the embodiment, the purlin 12 is made of cold-formed thin-walled steel, and a C-shaped steel is used.

[0064] In addition to the embodiment, the cross section and material can also be customized as needed to meet the stress requirements.

[0065] The purlin 12 is arranged above the main beam 11 and arranged longitudinally along the main beam 11, and the arrangement spacing is matched with the size of the upper photovoltaic panel.

[0066] In the embodiment, the main beam 11 is made of a square steel.

[0067] In addition to the embodiment, the cross section and material can also be customized as needed to meet the stress requirements.

[0068] In the embodiment, the purlin 12 and the main beam 11 are connected together through a U-shaped hoop.

[0069] In addition to the embodiment, the shape and material can also be customized as needed to meet the connection requirements.

[0070] One end of the transmission steel wire rope 5 is fixedly connected with a first transmission disc 7, and the first transmission disc 7 is semicircular, and the first transmission disc 7 is fixedly installed at the bottom of the corresponding main beam 11.

[0071] In this way, first, the semicircular first transmission disc 7 increases the contact area with the main beam 11, enhances the connection strength, uniformly disperses the steel wire rope tension, avoids local stress concentration, ensures stable connection without loosening, simultaneously guides the smooth force bearing of the steel wire rope, reduces additional stress, improves the power transmission efficiency, and ensures accurate rotation of the photovoltaic support 1.

[0072] Secondly, the design of fixing the first transmission disc 7 at the bottom of the main beam 11 is simple and intuitive to install and operate, reduces the construction difficulty and time cost, and the position is fixed and easy to observe, so that the steel wire rope connection can be quickly positioned during inspection and replacement, improving the convenience of maintenance.

[0073] Thirdly, the first transmission disc 7 is installed at the bottom of the main beam 11, which is ingeniously integrated into the support structure layout, does not occupy too much space and does not interfere with other components, has a compact and reasonable structure, and can be flexibly adapted to different support designs; at the same time, it connects the steel wire rope and the main beam 11, so that the components form an organic whole and move cooperatively, improving the accuracy and efficiency of the photovoltaic panel tracking the sun.

[0074] The linkage device 3 comprises a steering wheel assembly 31, and a linkage steel wire rope 32 is wound around the steering wheel assembly 31, and the two ends of the linkage steel wire rope 32 are respectively connected with the corresponding photovoltaic support 1 in a transmission mode.

[0075] In this way, first, the linkage steel wire rope 32 cooperates with the steering wheel assembly 31 to realize cooperative movement of multiple supports, so that when one support is adjusted in angle, the remaining supports can respond synchronously, ensuring that multiple photovoltaic panels always receive sunlight at the best angle and effectively improving the overall power generation efficiency of the photovoltaic power generation system.

[0076] Secondly, the steering wheel assembly 31 changes the transmission direction of the force of the linkage steel wire rope 32, can reasonably arrange the running direction of the rope according to the complex support layout, reduces the force loss, ensures stable and reliable power transmission, and makes the angle adjustment of the photovoltaic support 1 more smooth and accurate.

[0077] The two ends of the linkage steel wire rope 32 are respectively fixedly connected with a second transmission disc 33, and the second transmission disc 33 is semicircular, and the second transmission disc 33 is fixedly installed at the bottom of the corresponding main beam 11.

[0078] The steering wheel assembly 31 comprises a fixed frame 311, and a steering wheel 312 is rotatably connected to the fixed frame 311, and the linkage steel wire rope 32 is wound around the steering wheel 312.

[0079] Firstly, the turning wheel 312 can accurately guide the wire rope, stabilize the transmission path, avoid deviation and winding, make the photovoltaic support 1 rotate as expected, realize accurate control of the tracking angle of the photovoltaic panel, and ensure normal operation of the driving system.

[0080] Secondly, the turning wheel 312 and the linkage wire rope 32 are in rolling friction, the friction is small, the wear of the linkage wire rope 32 can be reduced, the service life is prolonged, the fixed frame 311 is stable, the stability of the turning wheel assembly 31 and the whole driving system is enhanced, and the risk of system failure caused by external force interference is reduced.

[0081] Thirdly, the turning wheel 312 can also flexibly change the transmission direction of the force, reasonably arrange the wire rope, balance the tension, and improve the flexibility and adaptability of the driving system.

[0082] In the embodiment, the bottom of the turning wheel 312 is fixedly connected with a pile foundation, and the pile foundation is fixedly installed on the ground.

[0083] The flexible driving multi-group flat single-axis support is equipped with a photovoltaic tracking control system, a sun position monitoring system, etc. according to the use requirement.

[0084] The photovoltaic tracking control system and the sun position monitoring system are prior art, the structure, working principle and installation principle thereof all constitute prior art, and are well known to those skilled in the art, and will not be described here.

[0085] When the sun position starts to change, the angle of the main beam 11 needs to be adjusted so that the photovoltaic module 2 thereon can continuously maintain a good light collecting angle, the control system (usually an intelligent control system matched with the photovoltaic system, which can determine when to start tracking adjustment according to time, geographical position, sun angle algorithm and other information, which is prior art, and will not be described in detail in the embodiment) will issue a command to start the work of the rigid chain driving assembly 6.

[0086] Subsequently, the self-locking speed reducer motor 64 at both ends starts to operate according to the received control command, so as to drive the driving sprocket 66 to start rotating, since the driving sprocket 66 is engaged with the rigid chain 62, the rigid chain 62 starts to move under the action of the driving sprocket 66.

[0087] One end of the rigid chain 62 is in transmission connection with the outermost photovoltaic support 1 through the corresponding transmission steel wire rope 5, so that the outermost photovoltaic support 1 starts to rotate around the main beam 11 with the movement of the rigid chain 62, wherein the self-locking reduction motor 64 at one end drives the corresponding driving sprocket 66 to rotate clockwise, so that the rigid chain 62 pulls the outermost photovoltaic support 1 to rotate clockwise, at the same time, the other end of the rigid chain 62 slides in the rigid chain groove 65 in the chain storage shell 61, and the rigid chain groove 65 provides a storage and sliding space for the rigid chain 62, so as to ensure that the rigid chain 62 can adapt to the rotation of the photovoltaic support 1 during the movement and maintain appropriate tension.

[0088] At the same time of the rotation of the above-mentioned outermost photovoltaic support 1, the linkage device 3 between the adjacent two groups of photovoltaic supports 1 starts to work, and the steering wheel assembly 31 and the linkage steel wire rope 32 in the linkage device 3 work cooperatively to transmit the rotating movement of the corresponding outermost photovoltaic support 1 to the adjacent photovoltaic support 1, at the same time, the self-locking reduction motor 64 at the other end drives the corresponding driving sprocket 66 to rotate counterclockwise, so that the rigid chain 62 loosens the limit of the corresponding outermost photovoltaic support 1, and all the photovoltaic supports 1 realize synchronous and same direction rotation under the action of the linkage device 3.

[0089] The solar position monitoring system continuously monitors the rotation angle of the photovoltaic support 1 and the change of the solar position, and feeds back the data to the control system in real time, when the photovoltaic support 1 rotates to the best light collecting angle calculated according to the solar position, the control system sends a stop signal to the self-locking reduction motor 64 at both ends, and the motor stops running.

[0090] At this time, the self-locking function of the self-locking reduction motor 64 starts to lock the driving sprocket 66 at the current position, so as to prevent the angle of the photovoltaic support 1 from changing due to external factors (such as wind force, vibration, etc.), so that all the photovoltaic supports 1 are stably kept at the best light collecting angle, and the photovoltaic module 2 can efficiently receive sunlight for power generation.

[0091] The above-mentioned is only the preferred specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any skilled person in the technical field according to the technical scheme and the application concept of the present application within the technical range disclosed by the present application can make equivalent replacement or change, which should be covered in the protection scope of the present application.

Claims

1. A flexible drive multi-group flat single-axis tracking support, comprising a plurality of photovoltaic supports (1), each of which is provided with a photovoltaic module (2), and the plurality of photovoltaic supports (1) are arranged in parallel and at intervals, and at least one linkage device (3) is arranged between the adjacent two groups of photovoltaic supports (1), characterized in that: The rigid chain driving device for driving the photovoltaic support (1) to rotate is symmetrically arranged between the two photovoltaic supports (1), and the rigid chain driving device comprises a guide wheel assembly (4), a transmission steel wire rope (5) is wound on the guide wheel assembly (4), one end of the transmission steel wire rope (5) is in transmission connection with the corresponding photovoltaic support (1), and the other end of the transmission steel wire rope (5) is in transmission connection with a rigid chain driving assembly (6).

2. The flexible drive multi-group planar single-axis tracking support according to claim 1, characterized in that: The rigid chain driving assembly (6) comprises a chain storage shell (61), a chain winding seat is arranged in the chain storage shell (61), two rigid chain grooves (65) are symmetrically arranged in the chain winding seat, rigid chains (62) capable of sliding along the rigid chain grooves (65) are uniformly arranged in the rigid chain grooves (65), the two rigid chains (62) are mutually buckled or separated, the free ends of the two rigid chains (62) are arranged to pass through the chain storage shell (61) and are fixedly connected with the same push-pull head (63), the other end of the push-pull head (63) is connected with the transmission steel wire rope (5), a driving sprocket (66) is arranged on the chain winding seat and located outside one of the rigid chains (62), one side of the driving sprocket (66) is engaged with the corresponding rigid chain (62), the driving sprocket (66) is in transmission connection with a self-locking speed reducer motor (64), and the self-locking speed reducer motor (64) is fixedly installed on the chain storage shell (61).

3. The flexible drive multi-group planar single-axis tracking support according to claim 2, characterized in that: The guide wheel assembly (4) comprises a mounting frame (41), a guide wheel (42) is rotatably arranged on the mounting frame (41), and the transmission steel wire rope (5) is wound on the guide wheel (42).

4. The flexible drive multi-group planar single-axis tracking support according to claim 3, characterized in that: The photovoltaic support (1) comprises a main beam (11), a plurality of purline bars (12) for mounting photovoltaic modules (2) are arranged above the main beam (11), and a plurality of column assemblies (13) for supporting rotation of the main beam (11) are sequentially and spacedly arranged below the main beam (11) along the axial length direction of the main beam (11).

5. The flexible drive multi-group planar single-axis tracking support according to claim 4, characterized in that: One end of the transmission steel wire rope (5) is fixedly connected with a first transmission disc (7), the first transmission disc (7) is semicircular, and the first transmission disc (7) is fixedly installed at the bottom of the corresponding main beam (11).

6. The flexible drive multi-group planar single-axis tracking support according to claim 5, characterized in that: The linkage device (3) comprises a steering wheel assembly (31), a linkage steel wire rope (32) is wound on the steering wheel assembly (31), and the two ends of the linkage steel wire rope (32) are in transmission connection with the corresponding photovoltaic supports (1) respectively.

7. The flexible drive multi-group planar single-axis tracking support according to claim 6, characterized in that: The two ends of the linkage steel wire rope (32) are fixedly connected with second transmission discs (33) respectively, the second transmission discs (33) are semicircular, and the second transmission discs (33) are fixedly installed at the bottom of the corresponding main beams (11).

8. The flexible drive multi-group planar single-axis tracking support according to claim 7, characterized in that: The steering wheel assembly (31) comprises a fixed frame (311), a steering wheel (312) is rotatably connected to the fixed frame (311), and the linkage steel wire rope (32) is wound on the steering wheel (312).

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