CN210724663U

CN210724663U - Single-shaft solar tracking support

Info

Publication number: CN210724663U
Application number: CN201921257670.6U
Authority: CN
Inventors: 孙迎光; 许利强
Original assignee: Wuxi Haoyang Smart Energy Co ltd
Current assignee: Jiangsu Zhaoguang Smart Energy Co.,Ltd.
Priority date: 2019-08-05
Filing date: 2019-08-05
Publication date: 2020-06-09
Anticipated expiration: 2029-08-05

Abstract

The utility model provides a unipolar solar energy tracking support, belongs to the solar energy application, and concretely relates to needs track unipolar automatic tracking solar power system and the unipolar tracking support that bears photovoltaic module or speculum among the solar thermal power system of sun. Including the stand, with photovoltaic fixed bolster, flexonics area, the flexonics area drive arrangement that is connected with the activity fulcrum between the stand, the both sides portion of photovoltaic fixed bolster be fixed with the both ends of flexonics area, the inclination between photovoltaic fixed bolster and the stand is controlled by flexonics area drive arrangement, flexonics area drive arrangement for stand position fixing, still include length compensation arrangement, length compensation arrangement be used for when the inclination between photovoltaic fixed bolster and stand changes, keep the flexonics area in taut state. The utility model has the advantages that: the flexible connecting belt is always in a tense state, so that the stability and the wind resistance of the bracket are improved; the control of a plurality of supports is realized simultaneously.

Description

Single-shaft solar tracking support

Technical Field

The invention belongs to the field of solar energy application, and particularly relates to a single-shaft automatic tracking solar power generation device needing to track the sun and a single-shaft tracking support for bearing a photovoltaic module or a reflector in a solar power generation device.

Background

In the prior art, a speed reducer or a push rod is arranged at one end of a rotating beam of a solar single-axis tracking bracket or in the middle of the rotating beam to drive the rotating beam to rotate, which is an easy-to-drive mode, but because the rotating beam of the solar single-shaft tracking bracket is very long, one end of the rotating beam, which is not connected with the speed reducer or the push rod, can shake under the action of wind, the single-shaft tracking bracket of the long rotating beam is additionally provided with a windproof damper at one end which is not connected with a speed reducer or a push rod in order to reduce the shaking, because the wind-proof damper has larger resistance, the driving force of a speed reducer or a push rod needs to be increased, the power consumption is increased, the tracking bracket can still shake when the damper does not have self-locking performance and meets strong wind, because the rotating beam bears the photovoltaic module support and rotates with the photovoltaic module, the rotating beam has stronger rigidity, so the weight of the rotating beam accounts for about one third of the weight of the single-shaft tracking support. There is a need for a single-axis solar tracking mount that is capable of resisting high winds, low power consumption, and does not require the use of heavy rotating beams.

However, in the prior art, some technologies using flexible connection belts such as ropes, steel cables and chains to pull the solar support can solve the problem of heavy rotating beams, but the technologies are not perfect at present, for example, in the photovoltaic support of patent application No. 201721163675.3, when the solar support rotates along with the sun, the sum of the distances from the fixed points of the two chains to the driving shaft is changed at different angles, and when the chains are loosened, the ropes can not be used for pulling and adjusting the angles, and the technologies can not realize the locking of the angles of the photovoltaic support, so that the wind resistance is very poor.

Disclosure of Invention

In order to overcome the defect that the solar single-shaft tracking support shakes in strong wind, improve the wind resistance, reduce the power consumption, reduce the weight of the single-shaft tracking support, save materials and reduce the manufacturing cost, the invention provides the chain multi-section synchronous driving single-shaft solar tracking support.

The technical scheme adopted by the invention for solving the technical problems is as follows:

the utility model provides a support is trailed to unipolar solar energy, includes the stand, with the stand between photovoltaic fixed bolster, flexonics area, the flexonics area drive arrangement that are connected with the activity fulcrum, the both sides portion of photovoltaic fixed bolster be fixed with the both ends of flexonics area, the inclination between photovoltaic fixed bolster and the stand is controlled by flexonics area drive arrangement, flexonics area drive arrangement for stand rigidity, still include length compensation arrangement, length compensation arrangement be used for when the inclination between photovoltaic fixed bolster and stand changes, keep the flexonics area to be in taut state.

Particularly, the length compensation device comprises a compensation fulcrum device and a compensation fulcrum support, the compensation fulcrum support is connected with the photovoltaic fixing support and the compensation fulcrum device, and the compensation fulcrum device is contacted with the flexible connecting belt.

Particularly, the compensation fulcrum support comprises two rigid rods, the tail ends of the rigid rods are fixed on the photovoltaic fixed support, and the front ends of the two rigid rods are fixed with the compensation fulcrum device.

In particular, the number of the contact points of the compensation fulcrum device and the flexible connecting belt is at least two.

Particularly, the contact point of the compensation fulcrum device and the flexible connecting belt is provided with a roller.

In particular, the flexible connecting belt further comprises a compression spring arranged on the rear side of the roller, and the compression spring gives thrust to the roller towards the flexible connecting belt.

In particular, the flexible connecting belt is a chain or a steel cable.

In particular, the flexible connecting belt is provided with a coordinating spring, so that the flexible connecting belt can stretch and retract.

Particularly, the flexible connecting belt driving device comprises a rotating shaft and a rotating shaft driving device, wherein the rotating shaft driving device is used for driving the flexible connecting belt to rotate when the rotating shaft driving device drives the rotating shaft to rotate.

Particularly, be equipped with the transmission shaft of connecting each pivot between the adjacent unipolar solar energy tracking support, pivot drive arrangement be the speed reducer, the speed reducer passes through the pivot of a plurality of unipolar solar energy tracking supports of transmission shaft simultaneous drive.

In particular, the transmission shaft is fixed on the upright post below the photovoltaic fixed bracket.

The invention has the beneficial effects that:

1. the flexible connecting belt is always in a tense state, so that the stability and the wind resistance of the bracket are improved; 2. the control of a plurality of supports is realized simultaneously.

Drawings

The invention is further described below with reference to the accompanying drawings.

FIG. 1 is a schematic view of the present invention in an inclined state;

FIG. 2 is a schematic view of the present invention in a horizontal state;

FIG. 3 is a schematic view of the connection of a plurality of solar single axis tracking supports;

FIG. 4 is an enlarged view of a partial structure of the contact position of the compensation fulcrum device, the compensation fulcrum bracket and the flexible connecting band;

FIG. 5 is a partial side view of the present invention;

the symbols in the drawings are as follows:

11. a column; 12. a photovoltaic fixed support; 2. a flexible connecting band; 3. a flexible connection belt drive; 31. a rotating shaft; 32. a speed reducer; 4. a length compensation device; 41. a rigid rod; 42. a roller; 5. a drive shaft.

Detailed Description

The principle of the invention is first explained: when the two ends of the flexible connecting belt 2 are fixed on the photovoltaic fixing support, and the position of the driving flexible connecting belt driving device 3 is fixed, the sum of the distances between the two fixing points and the driving device can be changed along with the adjustment of the photovoltaic fixing support along with the sun tracking angle, and is 1.414 times of the shortest distance at the longest time, when the flexible connecting belt 2 is in a tightening state, the angle of the photovoltaic fixing support can be regulated and controlled, and meanwhile, the photovoltaic fixing support can also be in a stable state.

As shown in fig. 1 and 2, a single-shaft solar tracking support comprises an upright post 11, a photovoltaic fixing support connected with the upright post 11 through a movable fulcrum, a flexible connecting belt 2, and a flexible connecting belt driving device 3, wherein two sides of the photovoltaic fixing support are fixed with two ends of the flexible connecting belt 2, an inclination angle between the photovoltaic fixing support and the upright post 11 is controlled by the flexible connecting belt driving device 3, the flexible connecting belt driving device 3 is fixed relative to the upright post 11, and the single-shaft solar tracking support further comprises a length compensation device, and the length compensation device is used for keeping the flexible connecting belt 2 in a tensioned state when the inclination angle between the photovoltaic fixing support and the upright post 11 changes. The length compensation means a technical means for compensating the sum of the distances between the two fixed points and the driving device, and changing the total length by changing the stroke of the flexible connecting band 2 when the sum of the linear distances between the two fixed points and the driving device is short along with the change of the inclination angle.

The length compensation device comprises a compensation fulcrum device and a compensation fulcrum support, the compensation fulcrum support is connected with the photovoltaic fixed support and the compensation fulcrum device, and the compensation fulcrum device is in contact with the flexible connecting belt 2. Namely, the flexible connecting belt 2 is always pushed or pulled by using the bracket at different inclination angles, so that the flexible connecting belt 2 is in a tightened state.

The compensation fulcrum support comprises two rigid rods 41 with tail ends fixed on the photovoltaic fixed support, and the front ends of the two rigid rods 41 are fixed with the compensation fulcrum device. The two rigid rods 41 and the photovoltaic fixing support form a stable structure which is approximately triangular and high in strength.

As shown in fig. 2, the number of contact points of the compensation fulcrum device with the flexible connecting band 2 is at least two. The object of the invention is also achieved in most cases when the number of contact points is one, but in this case the only contact point and the two rigid bars 41 will form a triangle as the contact point at the front end of the triangle, which in the case of some angular adjustments to the limit will easily collide with the flexible connection belt drive 3. When the contact point is larger than one, the position of the contact point can be adjusted so that the contact point does not touch the flexible connection belt driving device 3 at any inclination angle.

As shown in fig. 4, the roller 42 is installed on the contact point of the compensation fulcrum device and the flexible connecting belt 2, so that the friction with the flexible connecting belt 2 can be reduced, and the service life of the product can be prolonged.

And the compression spring is arranged at the rear side of the roller 42 and used for providing thrust to the roller 42 towards the flexible connecting belt 2. When the inclination angle is adjusted to some limit angles or the self length of the flexible connecting belt 2 is changed due to aging and the like, the roller 42 is pushed forwards by the compression spring, so that small errors can be corrected. The compression spring is simple to install and, because it is small and not shown, it can be installed in many different ways on the rear side of the roller 42 by those skilled in the art, depending on the situation at the site.

The flexible connecting belt 2 is a chain or a steel cable. The chain and the steel cable are the most common flexible connecting belts 2 and have high strength.

The flexible connecting belt 2 is provided with a coordinating spring, so that the flexible connecting belt 2 can stretch out and draw back. When the inclination angle is adjusted to some limit angles or the length of the flexible connecting belt 2 is changed due to aging and other reasons, small errors can be corrected by coordinating the springs.

The flexible connecting belt driving device 3 comprises a rotating shaft 31 and a rotating shaft driving device which enable flexible connection to be attached to the rotating shaft, and the rotating shaft driving device drives the flexible connecting belt 2 when driving the rotating shaft to rotate. When the flexible connecting belt 2 is used for different types, the selected flexible connecting belt driving device 3 also needs to be changed, if a chain is used, the chain can be rotated along with the chain by the aid of the fluted disc of the flexible connecting belt driving device 3, and the selection modes are conventional technologies in the field and are not described again.

As shown in fig. 3 and 5, a transmission shaft 5 is provided between adjacent single-shaft solar tracking supports to connect each of the shafts 31, the shaft driving device is a speed reducer 32, and the speed reducer 32 drives the shafts 31 of the plurality of single-shaft solar tracking supports through the transmission shaft 5. When the speed reducer 32 is driven, the plurality of solar tracking brackets can be controlled at a time to perform synchronous adjustment by rotating the rotating shafts 31 of the plurality of solar tracking brackets.

The transmission shaft 5 is fixed on the upright post 11 below the photovoltaic fixed support. When the transmission shaft 5 is fixed on the upright post 11, enough strength can be obtained, the position is more stable, and the change curve of the sum of the distances between the two fixed points and the driving device is easier to calculate.

Following the change of the sun inclination angle, the angle of the photovoltaic fixing bracket is adjusted, and the position of the roller 42 is changed along with the angle, so that the purpose of tightening the flexible connecting belt 2 is achieved. The length and angle of the rigid rod 41 and the position of the roller 42 need to be adapted to different single-axis solar tracking supports to be changed, and the combination mode of the rigid rod and the roller is calculated and set according to a change curve of the sum of the distances between two fixed points and the driving device as a data guide.

The invention saves materials, reduces power consumption, and simultaneously realizes the length problem and the wind resistance strength problem in the angle adjustment of the photovoltaic bracket by using the flexible connecting belt 2.

Claims

1. The utility model provides a support is trailed to unipolar solar energy, include stand (11), with between stand (11) with photovoltaic fixed bolster (12), flexonics area (2), the flexonics area drive arrangement (3) that the activity fulcrum is connected, the both sides portion of photovoltaic fixed bolster (12) be fixed with the both ends of flexonics area (2), the inclination between photovoltaic fixed bolster (12) and stand (11) is controlled by flexonics area drive arrangement (3), flexonics area drive arrangement (3) for stand (11) fixed position, its characterized in that: the photovoltaic fixing support is characterized by further comprising a length compensation device, wherein the length compensation device is used for keeping the flexible connecting belt (2) in a tensioned state when the inclination angle between the photovoltaic fixing support (12) and the upright post (11) is changed.

2. The single-axis solar tracking mount of claim 1, wherein: the length compensation device comprises a compensation fulcrum device and a compensation fulcrum support, the compensation fulcrum support is connected with the photovoltaic fixing support (12) and the compensation fulcrum device, and the compensation fulcrum device is contacted with the flexible connecting belt (2).

3. The single-axis solar tracking mount of claim 2, wherein: the compensation fulcrum support comprises two rigid rods (41) with tail ends fixed on the photovoltaic fixed support (12), and the front ends of the two rigid rods (41) are fixed with the compensation fulcrum device.

4. The single-axis solar tracking mount of claim 2, wherein: the number of the contact points of the compensation fulcrum device and the flexible connecting band (2) is at least two.

5. The single-axis solar tracking mount of claim 2, wherein: and a roller (42) is arranged on the contact point of the compensation fulcrum device and the flexible connecting belt (2).

6. The single-axis solar tracking mount of claim 5 wherein: the flexible connecting belt further comprises a compression spring arranged on the rear side of the roller (42) and used for providing thrust to the roller (42) towards the direction of the flexible connecting belt (2).

7. The single-axis solar tracking mount of claim 1, wherein: the flexible connecting belt (2) is a chain or a steel cable.

8. The single-axis solar tracking mount of claim 1, wherein: the flexible connecting belt (2) is provided with a coordinating spring, so that the flexible connecting belt (2) can stretch out and draw back.

9. The single-axis solar tracking mount of claim 1, wherein: the flexible connecting belt driving device (3) comprises a rotating shaft (31) and a rotating shaft (31) driving device which are used for enabling the flexible connection to be attached to the flexible connecting belt driving device, and the rotating shaft (31) driving device drives the flexible connecting belt (2) when driving the rotating shaft (31) to rotate.

10. The single-axis solar tracking mount of claim 9, wherein: transmission shaft (5) of connecting each pivot (31) are equipped with between the adjacent unipolar solar energy trails the support, pivot (31) drive arrangement be speed reducer (32), pivot (31) of a plurality of unipolar solar energy tracking supports are passed through transmission shaft (5) in speed reducer (32) simultaneously drive.

11. The single-axis solar tracking mount of claim 10, wherein: the transmission shaft (5) is fixed on the upright post (11) below the photovoltaic fixed support (12).