CN211377957U

CN211377957U - Photovoltaic tracking support

Info

Publication number: CN211377957U
Application number: CN202020165150.9U
Authority: CN
Inventors: 黄丽琴
Original assignee: Fujian Antai New Energy Tech Corp
Current assignee: FUJIAN ANTAI NEW ENERGY TECH. Corp.
Priority date: 2020-02-12
Filing date: 2020-02-12
Publication date: 2020-08-28
Anticipated expiration: 2030-02-12

Abstract

The embodiment of the utility model discloses support is trailed to photovoltaic, include: a plurality of upright columns which are vertically arranged at intervals; the main beam is horizontally arranged above the plurality of upright posts; the rotary driving motor is erected on the upper end surface of the upright post; the upper end surfaces of the rest of the upright columns are hinged with the main beam through hinge pieces; the purlines are erected on the upper surface of the main beam at intervals; the at least two linear brake rods are arranged on the upright post and comprise an outer pipe and an inner pipe, the inner pipe is hinged with the upright post, and the outer pipe is hinged with the main beam; a brake component is arranged at the splicing position of the outer pipe and the inner pipe; the controller is in communication connection with the rotary driving motor and the brake motor respectively; and the anemometer is in communication connection with the controller. The photovoltaic tracking support is driven by a single point, and the linear brake rod is in a loose state under normal wind speed operation; under the strong wind state, the linear brake rod is in the brake state, so that the main beam is constrained by multiple points to rotate freely in the axial direction, and the requirement on the torsion resistance of the main shaft is reduced.

Description

Photovoltaic tracking support

Technical Field

The utility model belongs to the technical field of the support is trailed to the photovoltaic, concretely relates to support is trailed to photovoltaic.

Background

The driving device on the photovoltaic tracking support drives the main beam to rotate, and further drives the photovoltaic panel on the main beam to rotate along with the solar running track (east rising west falling), so that sunlight always directly irradiates the photovoltaic panel, and the solar energy absorption and utilization efficiency is improved.

However, when wind acts on the photovoltaic panel, the main beam is subjected to axial torque due to the action of the wind, and the existence of the torque can cause damage to the main beam, and in order to avoid the damage, the following method is generally adopted:

1. single-point driving mode: the whole photovoltaic tracking support is fixed by the driving device, the axial torque borne by the main beam can be gradually accumulated to the driving device along the main beam, so that the driving device bears great torque, and meanwhile, the torque to be resisted by the main beam is gradually accumulated, so that the main beam and the driving device bear great torque at the same time. According to the photovoltaic tracking support driven by the single point, all torque can only be resisted through the driving device and the driving upright column, and the single point is unstable and easy to destabilize when being fixed in strong wind, so that the main beam and the driving device need stronger anti-torque performance, the anti-torque performance of the main beam and the torque resisting capability of the driving device need to be enhanced, the mode is direct, the cost is high, the safety performance is low, and the support is easy to resonate and destabilize in the strong wind.

2. Multi-point driving mode: in the mode, a plurality of driving devices are arranged on a main beam at normal wind speed, so that multi-point driving is realized, and driving force is provided at multiple points; if each driving point is provided with an independent driving device, the synchronism of the control system has high requirement on the stability of the support, and once a certain driving device is asynchronous, a main beam of the support is damaged by torque; if a mechanical structure transmission shaft is used for transmission, each synchronous driving point is additionally provided with a long transmission shaft, so that the cost is high and the installation is inconvenient.

SUMMERY OF THE UTILITY MODEL

Therefore, the embodiment of the utility model provides a photovoltaic tracking support is provided to solve the poor problem of girder antitorque performance under the strong wind state of photovoltaic tracking support under the current single point drive mode.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:

according to the utility model discloses the first aspect of the embodiment, a photovoltaic tracking support, include: a plurality of upright columns which are vertically arranged at intervals; the main beam is horizontally arranged above the plurality of upright columns; the main beam is hinged with the main beam through the rotary driving motor, and the rotary driving motor drives the main beam to rotate; the upper end surfaces of the other upright columns except the upright column provided with the rotary driving motor are hinged with the main beam through hinge parts; the length direction of the purlins is perpendicular to the length direction of the main beam, the purlins are erected on the upper surface of the main beam at intervals along the length direction of the main beam, and the purlins are matched to form a support for the photovoltaic panel; the linear brake rods are respectively arranged on the stand columns positioned on two sides of the rotary driving motor and comprise outer tubes and inner tubes inserted into one ends of the outer tubes in a sliding manner, the outer tubes are connected with the inner tubes in a telescopic manner, one ends of the inner tubes, far away from the outer tubes, are hinged with the stand columns, and one ends of the outer tubes, far away from the inner tubes, are hinged with the main beam; the brake assembly is arranged at the splicing position of the outer pipe and the inner pipe and comprises a brake piece arranged at the splicing position of the outer pipe and the inner pipe and a brake motor for driving the brake piece to be loosened or locked, and the brake motor controls the brake piece to form control on the stretching and retraction between the outer pipe and the inner pipe; the controller is in communication connection with the rotary driving motor and the brake motor respectively; and the anemometer is used for monitoring the wind speed of the area where the plurality of stand columns are located and is in communication connection with the controller.

Furthermore, a motor base of the rotary driving motor is erected on the upper end face of the stand column, the main beam is inserted into a rotary bearing of the rotary driving motor, and an output shaft of the rotary driving motor is connected with the main beam.

Furthermore, a purlin reinforcing piece is arranged at the position, corresponding to the purlin, of the upper end face of the main beam, and the purlin reinforcing piece is arranged in parallel with the purlin; two connecting holes are formed in the bottom surface of the purlin reinforcing piece at intervals, and the two connecting holes are located on the outer side of the main beam; the lower end face of the main beam is provided with a fixing piece corresponding to the purline reinforcing piece, the fixing piece is arranged in parallel to the purline reinforcing piece, and the surface of the fixing piece is provided with a connecting through hole corresponding to the connecting hole; the locking rod is inserted into the connecting hole and the connecting through hole to form fixation among the purlin reinforcement, the fixing piece and the main beam; the purline is installed in the purline reinforcement.

Furthermore, two brake arms are convexly arranged on the surface of the main beam corresponding to the linear brake rod at intervals, and the two brake arms are positioned on two sides of the hinged piece; one ends of the two brake arms, which are close to the main beam, are respectively fixed with the main beam through anchor ears; one ends of the two brake arms, which are far away from the main beam, are correspondingly provided with shaft holes; an upper mounting hole corresponding to the shaft hole is formed in one end, far away from the inner pipe, of the outer pipe of the linear brake rod; one end of the outer pipe, far away from the inner pipe, extends into a space between the two brake arms, and the shaft lever is inserted into the shaft hole and the upper mounting hole to form hinged connection between the outer pipe and the main beam; the upright posts, the main beams, the linear brake rods and the brake arms are matched to form a triangular structure.

Furthermore, a support is convexly arranged at the lower part of the upright post provided with the linear brake rod, the support comprises a base and two support plates convexly arranged on the surface of the base at intervals, pin shaft holes are correspondingly formed in the surfaces of the two support plates, and the support is fixedly connected to the upright post through the base; one end of the inner tube of the linear brake rod, which is far away from the outer tube, is provided with a lower mounting hole corresponding to the pin shaft hole; one end of the inner pipe, which is far away from the outer pipe, extends into the space between the two support plates, and the pin shaft is inserted into the pin shaft hole and the lower mounting hole to form hinged connection between the inner pipe and the upright post.

Further, the main beam is a rectangular square tube, a circular tube or a polygonal tube; the articulated elements are bearings, and the main beam is inserted in the bearings.

Further, the fixing piece is n-shaped or inverted concave.

Furthermore, the upright post provided with the linear brake rod and the upright post provided with the rotary driving motor are sequentially arranged;

or at least one upright post is arranged between the upright post provided with the linear brake rod and the upright post provided with the rotary driving motor.

Furthermore, the opposite surfaces of the two brake arms are connected with reinforcing rods.

The embodiment of the utility model provides a have following advantage:

the photovoltaic tracking support forms single-point drive on the main beam through the arrangement of a rotary drive motor, the rotary drive motor corresponds to the middle part of the main beam in the length direction, and two or a plurality of linear brake rods are arranged on the stand columns on two sides of the rotary drive motor;

the brake assembly on the linear brake rod controls the loosening or locking of the expansion between the outer pipe and the inner pipe;

under the normal wind speed operation (the wind speed is 0-18 m/s), the linear brake rod is in a loose state, the inner pipe and the outer pipe freely stretch and retract, and the main beam is driven by the rotary driving motor to rotate to track sunlight;

when the wind is strong (the wind speed exceeds 18 m/s), the controller controls the brake assembly on the linear brake rod to be in a locking state (namely a braking state), the linear brake rod enters a wind-resistant mode, the inner pipe and the outer pipe are restrained from being in the locking state and not stretching, the stretching freedom of the linear brake rod is limited, the linear brake rod is enabled to bear axial stretching or compressing force in the strong wind state, the linear brake rod restrains the rotation of the main beam, the main beam is supported by the brake arm fixedly connected with the main beam to resist wind torque generated by wind load acting on the main beam, so that the torque on the main beam is dispersed at multiple points, and the requirement on the torsion resistance of the main beam and the rotary driving motor is reduced;

compared with the existing photovoltaic tracking support with single-point driving and single-point braking, the photovoltaic tracking support of the utility model reduces the bearing condition of the main beam, makes the torque distribution on the main beam more uniform, and has very wide market prospect in terms of safety and economy;

the inner pipe of the linear brake rod can freely stretch and slide in the outer pipe under the normal running state, and under strong wind, the brake assembly enables the brake device fixed on the outer pipe to work and clamps (fixes) the inner pipe, so that the inner pipe and the outer pipe form a whole.

The utility model discloses the inner tube is fixed on the stand of tracking the support, and the outer tube passes through the brake arm to be fixed on the girder. When the braking device is in action, the upright post and the main beam are fixed together through the linear braking device. For a tracking system, each linear brake position is a fixed point, and a single drive is a fixed point, so that the whole system has 3 or more than 3 fixed points.

The utility model discloses be applicable to the subassembly list promptly and erect and put the tracking support, also be applicable to the double perpendicular support system of putting or double horizontal tracking support system of putting of subassembly.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is a schematic structural view of a photovoltaic tracking support provided in embodiment 1 of the present invention;

fig. 2 is a schematic view of a fitting structure of a linear brake rod, a main beam and an upright column in a photovoltaic tracking bracket according to embodiment 1 of the present invention;

fig. 3 is a schematic view of a matching structure between a rotation driving motor and a main beam in a photovoltaic tracking support provided in embodiment 1 of the present invention;

fig. 4 is a schematic structural view of a linear brake rod in a photovoltaic tracking support provided in embodiment 1 of the present invention;

fig. 5 is a schematic view of a matching structure of a main beam and a purline in a photovoltaic tracking support provided in embodiment 1 of the present invention;

fig. 6 is a schematic structural view of a purlin, a purlin reinforcement member, and a fixing member in a photovoltaic tracking bracket according to embodiment 1 of the present invention;

fig. 7 is a schematic view of a matching structure of a purlin, a purlin stiffener main beam, and a fixing member in a photovoltaic tracking bracket according to embodiment 1 of the present invention;

fig. 8 is a schematic view of a structure in which an outer tube of a linear brake lever in a photovoltaic tracking bracket provided by embodiment 1 of the present invention is engaged with a main beam through a brake arm;

fig. 9 is a schematic view of a fitting structure of an inner tube of a linear brake rod in a photovoltaic tracking bracket through a support and a stand column according to embodiment 1 of the present invention;

in the figure:

1. column, 11, hinge;

2. a main beam;

3. a rotary driving motor 31, a motor base 32, a rotary bearing 33 and an output shaft;

4. purlin, 41, top supporting part;

5. the linear brake rod 51, the outer pipe 511, the upper mounting hole 52, the inner pipe 521, the lower mounting hole 53 and the brake assembly;

6. purlin reinforcement, 61, connecting hole;

7. a fixing piece 71, a connecting through hole 72 and a locking rod;

8. the brake arm 81, the hoop 82, the shaft hole 83, the shaft lever 84 and the reinforcing rod;

9. the support 91, the base 92, the support plate 93, the pin shaft hole 94 and the pin shaft.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present invention, the terms "upper", "lower", "left", "right", "middle", and the like are used for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also considered to be the scope of the present invention without substantial changes in the technical content.

Example 1

Referring to fig. 1 ~ 9, the utility model provides a photovoltaic tracking support, include: a plurality of upright posts 1 are vertically arranged at intervals; the main beam 2 is horizontally arranged above the plurality of upright posts 1; the main beam 2 is hinged with the upright post 1 through the rotary driving motor 3, and the rotary driving motor 3 drives the main beam 2 to rotate; the upper end surfaces of the other upright columns 1 except the upright column 1 provided with the rotary driving motor 3 in the plurality of upright columns 1 are hinged with the main beam 2 through hinge pieces 11; the length direction of the purlins 4 is perpendicular to the length direction of the main beam 2, the purlins 4 are erected on the upper surface of the main beam 2 at intervals along the length direction of the main beam 2, and the purlins 4 are matched to form a support for a photovoltaic panel (not shown); the brake device comprises at least two linear brake rods 5, at least two linear brake rods 5 and a main beam 2, wherein the linear brake rods 5 are respectively arranged on the stand columns 1 positioned on two sides of the rotary driving motor 3, each linear brake rod 5 comprises an outer tube 51 and an inner tube 52 which is inserted into one end of the outer tube 51 in a sliding mode, the outer tube 51 and the inner tube 52 are connected in a telescopic mode, one end, far away from the outer tube 51, of the inner tube 52 is hinged to the stand column 1, and; a brake assembly 53 is arranged at the insertion position of the outer pipe 51 and the inner pipe 52, the brake assembly 53 comprises a brake piece (not shown) arranged at the insertion position of the outer pipe 51 and the inner pipe and a brake motor (not shown) for driving the brake piece to be released or locked, and the brake motor controls the brake piece to control the stretching and retracting of the outer pipe 51 and the inner pipe 52; a controller (not shown), wherein the rotary driving motor 3 and the brake motor are respectively connected with the controller in a communication way; an anemometer (not shown) for monitoring the wind speed in the area of the plurality of uprights 1, said anemometer being communicatively connected to the controller.

Further, a motor base 31 of the rotation driving motor 3 is erected on the upper end surface of the upright post 1, the main beam 2 is inserted into a rotation bearing 32 of the rotation driving motor 3, and an output shaft 33 of the rotation driving motor 3 is connected with the main beam 2.

The output shaft 33 of the rotary driving motor 3 is connected with the main beam 2 through a bolt, so that the stable connection between the rotary driving motor 3 and the main beam 2 is ensured; the design of a rotary driving motor 3 forms single-point driving, and reduces energy consumption.

Furthermore, a purlin reinforcement 6 is arranged at the position, corresponding to the purlin 4, of the upper end face of the main beam 2, and the purlin reinforcement 6 is arranged in parallel with the purlin 4; two connecting holes 61 are formed in the bottom surface of the purlin reinforcing piece 6 at intervals, and the two connecting holes 61 are located on the outer side of the main beam 2; the lower end surface of the main beam 2 is provided with a fixing piece 7 corresponding to the purlin reinforcing piece 6, the fixing piece 7 is arranged in parallel to the purlin reinforcing piece 6, and the surface of the fixing piece 7 is provided with a connecting through hole 71 corresponding to the connecting hole 61; the locking rod 72 is inserted into the connecting hole 61 and the connecting through hole 71 to form fixation among the purlin reinforcement 6, the fixing piece 7 and the main beam 2; the purlines 4 are arranged in the purline reinforcing pieces 6.

The cooperation of purlin reinforcement 6, locking lever 72 and mounting 7, with the firm assembly of purlin reinforcement 6 in girder 2 up end, purlin 4 is installed in purlin reinforcement 6, promotes convenience and the steadiness of purlin 4 assembly.

The locking rod 72 is a bolt.

Furthermore, two brake arms 8 are convexly arranged on the surface of the main beam 2 corresponding to the linear brake rod 5 at intervals, and the two brake arms 8 are positioned at two sides of the hinge piece 11; one ends of the two brake arms 8, which are close to the main beam 2, are respectively fixed with the main beam 2 through anchor ears 81; the two ends of the brake arms 8 far away from the main beam 2 are correspondingly provided with shaft holes 82; an upper mounting hole 511 corresponding to the shaft hole 82 is formed at one end, far away from the inner tube 52, of the outer tube 51 of the linear brake rod 5; one end of the outer pipe 51, which is far away from the inner pipe 52, extends into the space between the two brake arms 8, and the shaft rod 83 is inserted into the shaft hole 82 and the upper mounting hole 511 to form a hinged connection between the outer pipe 51 and the main beam 2; the upright post 1, the main beam 2, the linear brake rod 5 and the brake arm 8 are matched to form a triangular structure.

The design of the brake arm 8 is that the main beam 2 is connected with the outer tube 51 of the linear brake rod 5 through the brake arm 8, the brake motor locks the brake part in the strong wind state, the brake part locks the outer tube 51 and the inner tube 52, the inner tube 52 and the outer tube 51 cannot stretch, the linear brake rod 5 forms reinforcement on the main beam 2 through the brake arm 8, the torque of the main beam 2 is effectively dispersed, and therefore the torque of the main beam and the rotary drive motor 3 in the strong wind state is reduced;

under normal wind speed, the braking motor releases the braking part, the braking part releases locking between the outer pipe 51 and the inner pipe 52, telescopic freedom is realized between the inner pipe 52 and the outer pipe 51, the rotary driving motor 3 drives the main beam 2 to rotate along with sunlight, the main beam 2 drives the outer pipe 51 to extend or contract relative to the inner pipe 51 through the braking arm 8 and the shaft lever 83, the linear braking rod 5 is prevented from limiting the rotation freedom of the main beam 2, and the normal operation of the photovoltaic tracking support is ensured;

the stand column 1, the main beam 2, the linear brake rod 5 and the brake arm 8 are matched to form a triangular structure, so that the connection stability can be ensured, and the capability of dispersing torque is improved.

Furthermore, a support 9 is convexly arranged at the lower part of the upright post 1 provided with the linear brake rod 5, the support 9 comprises a base 91 and two support plates 92 convexly arranged on the surface of the base 91 at intervals, pin shaft holes 93 are correspondingly arranged on the surfaces of the two support plates 92, and the support 9 is fixedly connected to the upright post 1 through the base 91; one end of the inner tube 52 of the linear brake lever 5, which is far away from the outer tube 51, is provided with a lower mounting hole 521 corresponding to the pin shaft hole 93; one end of the inner tube 52, which is far away from the outer tube 51, extends into the space between the two support plates 92, and the pin 94 is inserted into the pin hole 93 and the lower mounting hole 521, so as to form a hinged connection between the inner tube 52 and the upright post 1.

The design of the support 9 enables the inner pipe 52 of the linear brake rod 5 to be hinged with the upright post 1 through the pin 94, the brake motor releases the brake at normal wind speed, the brake releases the locking between the outer pipe 51 and the inner pipe 52, the inner pipe 52 and the outer pipe 51 are free to stretch, the rotary driving motor 3 drives the main beam 2 to rotate along with sunlight, the inner pipe 52 is hinged with the pin 94 and can rotate along with the main beam 2, and the normal operation of the photovoltaic tracking support is guaranteed.

The pin 94 is a cotter pin.

Further, the main beam 2 is a rectangular square tube, a circular tube or a polygonal tube; the articulated elements 11 are bearings, and the main beam 2 is inserted in the bearings.

Due to the design of various shapes of the main beam 2, the photovoltaic tracking support can meet various use requirements, and the use range is widened;

the articulated elements 11 are designed as bearings, which facilitate the rotation of the main beam 2 and ensure the stability of the connection between the main beam 2 and the upright 1.

Further, the fixing member 7 is n-shaped or inverted concave.

The design of the jacking portion 41 can enhance the stability of the purline 4 for supporting the photovoltaic panel.

The section of the purline reinforcing piece 6 is U-shaped or concave, and the section of the purline 4 is U-shaped or concave; and the upper end surfaces of the two side walls of the purline 4 are respectively bent outwards to form jacking parts 41 for jacking the photovoltaic panel.

Further, the upright post 1 provided with the linear brake rod 5 and the upright post 1 provided with the rotary driving motor 3 are sequentially arranged;

or at least one upright 1 is arranged between the upright 1 provided with the linear brake rod 5 and the upright 1 provided with the rotary driving motor 3.

Wherein, the upright 1 provided with the linear brake rod 5 and the upright 1 provided with the rotary driving motor 3 are arranged in sequence, that is, the upright 1 is not additionally arranged between the upright 1 provided with the linear brake rod 5 and the upright 1 provided with the rotary driving motor 3 (in other words, the upright 1 provided with the linear brake rod 5 is arranged at two sides of the upright 1 provided with the rotary driving motor 3 in sequence);

the linear brake rods 5 and the rotary driving motor 3 are arranged in sequence, so that the dispersion effect of the linear brake rods on the torque of the main beam 2 can be enhanced;

or, 1 or more columns 1 without linear brake rods 5 can be arranged between the column 1 provided with the linear brake rods 5 and the column 1 provided with the rotary drive motor 3 at intervals (namely, two sides of the column 1 provided with the rotary drive motor 3 are provided with 1 column 1 provided with the rotary drive motor 3 every 1 or more columns 1);

the interval design between the linear brake rod 5 and the rotary driving motor 3 can enhance the dispersion effect of the linear brake rod 5 on the torque of the main beam 2, and simultaneously can reduce the using amount of the linear brake rod 5 and reduce the cost.

In addition, the number of the rotary driving motors 3 is at least 1, corresponding to the middle part of the main beam 2 in the length direction, and 1 rotary driving motor 3 corresponds to at least 2 linear brake rods 5;

or, the number of the rotary driving motors 3 is multiple, the rotary driving motors are arranged at intervals along the length direction of the main beam 2, and each rotary driving motor 3 corresponds to at least 2 linear brake rods 5.

The utility model provides a using-way of support is trailed to photovoltaic as follows:

under normal wind speed (wind speed of 0-18 m/s), the controller controls a brake motor in the brake assembly 53 to release a brake part, the brake part releases locking between the outer pipe 51 and the inner pipe 52, the inner pipe 52 and the outer pipe 51 realize free extension, the linear brake rod 5 does not limit the free rotation of the main beam 2 at the moment, the controller controls the rotary driving motor 3 to drive the main beam 2 to rotate along with sunlight, tracking of the photovoltaic panel on the sunlight is realized, the main beam 2 rotates, the outer pipe 51 is driven to extend or contract relative to the inner pipe 51 through the brake arm 8 and the shaft lever 83, and normal operation of the photovoltaic tracking support is guaranteed;

the wind speed is monitored by the anemometer, when the wind speed exceeds the normal operation wind speed (namely, the high wind state, and the real-time wind speed exceeds 18 m/s) designed in the controller, after the main beam 2 rotates to a wind-resistant angle, the controller sends a control signal to the brake motor in the brake assembly 53, the brake motor starts the brake part to limit the telescopic freedom of the inner tube 52, the inner tube 52 and the outer tube 51 cannot be stretched, so that the linear brake rod 5, the upright post 1 and the brake arm 8 are fixed into a triangle, the whole photovoltaic tracking support is more stable, the main beam 2 is limited to rotate freely at the brake arm 8, the wind torque is reduced, the wind torque is continuously transmitted to the rotary driving motor 3, and the wind load of the section of the main beam 2 and the upright post 1 provided with the rotary driving motor 3;

the design of a plurality of straight line brake bars 5 realizes fixed girder 2 of multiple spot, has disperseed girder 2's torque distribution, makes photovoltaic tracking support stable, can not produce and rock, resonance unstability phenomenon.

Example 2

Further, a reinforcing bar 84 is connected to the opposite surfaces of the two brake arms 8.

The reinforcing rod 84 is designed to ensure stable connection between the two brake arms 8 and ensure structural strength.

The rest is the same as example 1.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. A photovoltaic tracking rack, comprising:

a plurality of upright posts (1) which are vertically arranged at intervals;

the main beam (2) is horizontally arranged above the upright posts (1);

the main beam rotation driving device comprises at least one rotation driving motor (3), wherein the rotation driving motor (3) is erected on the upper end surface of an upright post (1) corresponding to the middle part of a main beam (2) in the length direction, the upright post (1) is hinged with the main beam (2) through the rotation driving motor (3), and the rotation driving motor (3) drives the main beam (2) to rotate;

the upper end surfaces of the other upright columns (1) except the upright column (1) provided with the rotary driving motor (3) in the upright columns (1) are hinged with the main beam (2) through a hinge piece (11);

the length direction of the purlins (4) is perpendicular to the length direction of the main beam (2), the purlins (4) are erected on the upper surface of the main beam (2) at intervals along the length direction of the main beam (2), and the purlins (4) are matched to form a support for the photovoltaic panel;

the brake device comprises at least two linear brake levers (5) which are respectively arranged on upright posts (1) positioned on two sides of a rotary driving motor (3), wherein each linear brake lever (5) comprises an outer tube (51) and an inner tube (52) which is slidably inserted into one end of the outer tube (51), the outer tube (51) and the inner tube (52) are in telescopic connection, one end, far away from the outer tube (51), of the inner tube (52) is hinged to the upright post (1), and one end, far away from the inner tube (52), of the outer tube (51) is hinged to a main beam (2);

a brake assembly (53) is arranged at the splicing position of the outer pipe (51) and the inner pipe (52), the brake assembly (53) comprises a brake piece arranged at the splicing position of the outer pipe (51) and the inner pipe and a brake motor for driving the brake piece to be loosened or locked, and the brake motor controls the brake piece to form the control on the loosening or locking of the stretching between the outer pipe (51) and the inner pipe (52);

the controller is communicated with the rotary driving motor (3) and the brake motor respectively;

and the anemometer is used for monitoring the wind speed of the area where the plurality of stand columns (1) are located and is in communication connection with the controller.

2. The photovoltaic tracking support according to claim 1, wherein a motor base (31) of the rotary driving motor (3) is erected on the upper end surface of the upright post (1), the main beam (2) is inserted into a rotary bearing (32) of the rotary driving motor (3), and an output shaft (33) of the rotary driving motor (3) is connected with the main beam (2).

3. The photovoltaic tracking bracket according to claim 1, characterized in that a purlin stiffener (6) is arranged at the position of the upper end face of the main beam (2) corresponding to the purlin (4), and the purlin stiffener (6) is arranged in parallel with the purlin (4);

two connecting holes (61) are formed in the bottom surface of the purlin reinforcing piece (6) at intervals, and the two connecting holes (61) are located on the outer side of the main beam (2);

the lower end face of the main beam (2) is provided with a fixing piece (7) corresponding to the purlin reinforcing piece (6), the fixing piece (7) is arranged in parallel to the purlin reinforcing piece (6), and the surface of the fixing piece (7) is provided with a connecting through hole (71) corresponding to the connecting hole (61);

the locking rod (72) is inserted into the connecting hole (61) and the connecting through hole (71) to form fixation among the purline reinforcing piece (6), the fixing piece (7) and the main beam (2);

the purlines (4) are arranged in the purline reinforcing pieces (6).

4. Photovoltaic tracking support according to claim 1, characterized in that two braking arms (8) are convexly provided at intervals on the surface of the main beam (2) corresponding to the linear braking lever (5), the two braking arms (8) being located on both sides of the hinge (11);

one ends of the two brake arms (8) close to the main beam (2) are respectively fixed with the main beam (2) through anchor ears (81);

one ends of the two brake arms (8) far away from the main beam (2) are correspondingly provided with shaft holes (82);

an upper mounting hole (511) corresponding to the shaft hole (82) is formed in one end, far away from the inner pipe (52), of the outer pipe (51) of the linear brake lever (5);

one end of the outer pipe (51), which is far away from the inner pipe (52), extends into the space between the two brake arms (8), and the shaft lever (83) is inserted into the shaft hole (82) and the upper mounting hole (511) to form hinged connection between the outer pipe (51) and the main beam (2);

the upright post (1), the main beam (2), the linear brake rod (5) and the brake arm (8) are matched to form a triangular structure.

5. The photovoltaic tracking bracket according to claim 1, wherein a support (9) is convexly arranged at the lower part of the upright post (1) provided with the linear brake rod (5), the support (9) comprises a base (91) and two support plates (92) convexly arranged on the surface of the base (91) at intervals, pin shaft holes (93) are correspondingly formed on the surfaces of the two support plates (92), and the support (9) is fixedly connected to the upright post (1) through the base (91);

one end of the inner tube (52) of the linear brake rod (5) far away from the outer tube (51) is provided with a lower mounting hole (521) corresponding to the pin shaft hole (93);

one end of the inner pipe (52) far away from the outer pipe (51) extends into the space between the two support plates (92), and the pin shaft (94) is inserted into the pin shaft hole (93) and the lower mounting hole (521) to form hinged connection between the inner pipe (52) and the upright post (1).

6. The photovoltaic tracking rack according to claim 1 or 4, characterized in that the main beam (2) is a rectangular square tube, a round tube or a polygonal tube;

the articulated elements (11) are bearings, and the main beam (2) is inserted in the bearings.

7. Photovoltaic tracking support according to claim 3, characterized in that the fixture (7) is n-shaped or inverted concave in shape.

8. Photovoltaic tracking support according to claim 1, characterized in that the uprights (1) provided with linear brake levers (5) are arranged in sequence with the uprights (1) provided with rotary drive motors (3);

or at least one upright (1) is arranged between the upright (1) provided with the linear brake rod (5) and the upright (1) provided with the rotary driving motor (3).

9. Photovoltaic tracking support according to claim 4, characterized in that opposite sides of the two braking arms (8) are connected with stiffening rods (84).