CN110968116A - Main shaft of photovoltaic tracking support - Google Patents
Main shaft of photovoltaic tracking support Download PDFInfo
- Publication number
- CN110968116A CN110968116A CN201911115480.5A CN201911115480A CN110968116A CN 110968116 A CN110968116 A CN 110968116A CN 201911115480 A CN201911115480 A CN 201911115480A CN 110968116 A CN110968116 A CN 110968116A
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- CN
- China
- Prior art keywords
- main shaft
- photovoltaic tracking
- mounting surface
- tracking support
- mounting
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
Abstract
The invention discloses a main shaft of a photovoltaic tracking bracket, which is made of a pipe fitting with a closed section, wherein the mounting surface of one side of the main shaft for mounting a purline is a plane, the two sides of the main shaft are vertical to the mounting surface, the side of the main shaft opposite to the mounting surface is an arc surface, and the widths of the two sides of the main shaft are the same. Due to the special shape of the main shaft of the photovoltaic tracking support, when the main shaft is applied to the photovoltaic tracking support, the transverse section resisting moment of the main shaft is greatly improved compared with square and round main shafts in the prior art under the condition of ensuring the same thickness, and the main shaft has a good practical application value. The transverse section resisting moment of the main shaft is improved, the weight is lighter, the cost of the main shaft is saved, and the eccentric force of the panel assembly is reduced. After the photovoltaic tracking support is applied to the spindle, the stress is more uniform and the installation is more convenient and rapid except for realizing the technical effect.
Description
Technical Field
The invention relates to solar photovoltaic equipment, in particular to a main shaft of a photovoltaic tracking support.
Background
In the prior art, photovoltaic power generation is a trend and is widely applied to various places, and the photovoltaic power generation directly converts solar energy into electric energy according to the principle of photovoltaic effect. No matter independent use or grid-connected power generation, the photovoltaic power generation system mainly comprises three major parts of purlins, a controller and an inverter, and in order to ensure that the purlins keep high power generation efficiency, a photovoltaic tracking support is developed, the purlins are installed on a main shaft, and the main shaft drives the purlins to rotate along with the movement of the sun.
Because the main shaft of the photovoltaic tracking support needs to reach a certain bending strength, the main shaft commonly used in the industry is usually a square pipe or a round pipe, and in order to reach the corresponding strength and rigidity, the outer diameter specification of the main shaft is usually selected to be enlarged, so that the weight of the main shaft is larger, and the cost is increased. And along with the grow of external diameter, the distance of tracking support panel assembly apart from the bearing rotation center also becomes far away gradually, and eccentric force grow.
Disclosure of Invention
The invention aims to provide a main shaft of a photovoltaic tracking support.
According to one aspect of the invention, the main shaft of the photovoltaic tracking bracket is made of a pipe fitting with a closed cross section, the mounting surface of one side of the main shaft for mounting the purlin is a plane, two sides of the main shaft are perpendicular to the mounting surface, one side of the main shaft opposite to the mounting surface is an arc surface, and the widths of the two sides of the main shaft are the same.
Due to the special shape of the main shaft of the photovoltaic tracking support, when the main shaft is applied to the photovoltaic tracking support, the transverse section resisting moment of the main shaft is greatly improved compared with square and round main shafts in the prior art under the condition of ensuring the same thickness, and the main shaft has a good practical application value.
The transverse section resisting moment of the main shaft is improved, the weight is lighter, the cost of the main shaft is saved, and the eccentric force of the panel assembly is reduced. After the photovoltaic tracking support is applied to the spindle, the stress is more uniform and the installation is more convenient and rapid except for realizing the technical effect.
The upper surface of the main shaft is a horizontal plane, and the main shaft is favorable for mounting purlines compared with a circular tube type main shaft, and avoids deviation caused by sliding in the mounting process and the future use process.
Compared with a circular tube type main shaft, the horizontal mounting surface on the upper portion of the main shaft reduces the mounting height of purlines, so that the distance from the purlines to the center of the rotary bearing is reduced, and the eccentric force of the purlines is effectively reduced.
Further, the inner side wall of the mounting surface is provided with a reinforcing device, and the reinforcing device is used for reinforcing the strength of the mounting surface. The mounting surface is usually provided with holes for mounting a large number of bolts due to the purlines, and the internal stress of the mounting surface is very uneven and is easy to deform due to the damage of the holes to the mounting surface and the expansion force of the bolts. This problem can be solved by further reinforcing the strength of the mounting surface by the reinforcing means.
In some embodiments, the reinforcing means is a plurality of reinforcing bars arranged in the axial direction of the main shaft. The reinforcing rib not only can strengthen the strength of the mounting surface, but also can disperse the internal stress of the mounting surface along the axial direction of the main shaft.
Preferably, the plurality of reinforcing beads are parallel to each other.
In other embodiments, the reinforcing device is a plurality of grooves arranged on the mounting surface, the grooves are recessed towards the inside of the spindle, and the axial direction of the grooves is coincident with the axial direction of the spindle. The groove can not only strengthen the strength of the mounting surface, but also increase the elasticity of the mounting surface, thereby buffering the instantaneous impact force of the purline on the main shaft.
In other embodiments, the plurality of spindles are coaxially connected into one through a spindle connecting piece, the spindle connecting piece is sleeved and fixed at a connection position between the spindle connecting piece and the spindles, the spindle connecting piece is formed by combining a plurality of plane pieces and arc-shaped pieces, and the mounting surface and the arc-shaped surface are respectively arranged in the plane pieces and the arc-shaped pieces.
Preferably, the planar member and the arc member are fixedly connected and enclose a closed tubular shape.
Photovoltaic tracking support single-row span is longer usually, and whole main shaft is mostly the multistage and splices the lock shaping, and staple bolt locking is fixed about main shaft concatenation department adopts plane spare and cambered surface spare. The main shaft is flexible to apply, the splicing positions can be flexibly selected in the splicing process of the multi-section main shafts, the mounting positions of the bearing seats and the purlines are effectively avoided, and the problem of interference in the mounting process is avoided.
Furthermore, the plane piece and the cambered surface piece are both copying bending pieces, the plane piece is matched with one side of the installation surface of the main shaft, and the cambered surface piece is matched with one side of the cambered surface of the main shaft. The laminating degree between plane spare and cambered surface spare and the main shaft has been increased from this, makes purlin and bearing frame can meet with the main shaft seamless, greatly reduced in the use in the future, because of the not hard up skew that photovoltaic tracking support product wholly shakes and produces.
Drawings
Fig. 1 is a schematic structural diagram of a main shaft of a photovoltaic tracking support according to an embodiment of the present invention.
Fig. 2 is a schematic cross-sectional view of a main shaft of the photovoltaic tracking rack shown in fig. 1.
Fig. 3 is a schematic structural diagram of a main shaft of a photovoltaic tracking support according to another embodiment of the present invention.
Fig. 4 is a schematic structural view of the spindle attachment shown in fig. 3.
FIG. 5 is a cross-sectional view of the spindle attachment shown in FIG. 3.
Fig. 6 is a schematic cross-sectional view of a primary shaft of a photovoltaic tracking rack according to another embodiment of the present invention.
FIG. 7 is a schematic structural diagram of a main shaft of a photovoltaic tracking support according to another embodiment of the present invention
Fig. 8 is a schematic cross-sectional view of the spindle shown in fig. 7.
Fig. 9 is a schematic cross-sectional view of a primary shaft of a photovoltaic tracking rack in accordance with another embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1
Fig. 1 and 2 schematically show the main axis of a photovoltaic tracking support according to an embodiment of the invention. As shown, the main shaft 1 is made of a pipe member having a closed cross section.
The mounting surface 11 of the main shaft 1 on one side for mounting the purlin is a plane.
The two sides of the main shaft 1 are perpendicular to the mounting surface 11.
The side of the main shaft 1 opposite to the mounting surface 11 is an arc surface 12.
The width of both sides of the main shaft 1 is the same.
The mounting surface 11 and the arc surface 12 are respectively arranged on the plane member 21 and the arc surface member 22.
The inner side wall of the mounting surface 11 is provided with a reinforcing device for reinforcing the strength of the mounting surface 11. The mounting surface 11 is usually perforated to mount a relatively large number of bolts due to the purlins, and the internal stress of the mounting surface 11 is very uneven and easily deformed due to the damage of the perforations to the mounting surface 11 and the expansion force of the bolts. This problem can be solved by further reinforcing the strength of the mounting surface 11 by the reinforcing means.
In the present embodiment, the reinforcing means are a plurality of ribs 13 disposed along the axial direction of the main shaft 1.
The plurality of reinforcing ribs 13 are parallel to each other.
The ribs 13 not only strengthen the mounting surface 11, but also disperse the internal stress of the mounting surface 11 in the axial direction of the spindle 1.
Due to the special shape of the main shaft of the photovoltaic tracking support, when the main shaft is applied to the photovoltaic tracking support, the transverse section resisting moment of the main shaft is greatly improved compared with square and round main shafts in the prior art under the condition of ensuring the same thickness, and the main shaft has a good practical application value.
The transverse section resisting moment of the main shaft is improved, the weight is lighter, the cost of the main shaft is saved, and the eccentric force of the panel assembly is reduced. After the photovoltaic tracking support is applied to the spindle, the stress is more uniform and the installation is more convenient and rapid except for realizing the technical effect.
The upper surface of the main shaft is a horizontal plane, and the main shaft is favorable for mounting purlines compared with a circular tube type main shaft, and avoids deviation caused by sliding in the mounting process and the future use process.
Compared with a circular tube type main shaft, the horizontal mounting surface on the upper portion of the main shaft reduces the mounting height of purlines, so that the distance from the purlines to the center of the rotary bearing is reduced, and the eccentric force of the purlines is effectively reduced.
Example 2
Fig. 3 to 5 schematically show the main axis of a photovoltaic tracking support according to another embodiment of the invention. As shown in the drawing, the difference from embodiment 1 is that a plurality of spindles are coaxially connected to one another by a spindle connector.
The main shaft connecting piece 2 is sleeved and fixed at the connecting part between the main shaft connecting piece and the main shaft 1.
The spindle attachment 2 is formed by a combination of a plurality of planar members 21 and arc-shaped members 22.
The mounting surface 11 and the arc surface 12 are respectively arranged in the plane member 21 and the arc surface member 22.
The plane member 21 and the arc member 22 are fixedly connected and enclose a closed tubular shape.
Photovoltaic tracking support single-row span is longer usually, and whole main shaft is mostly the multistage and splices the lock shaping, and staple bolt locking is fixed about main shaft concatenation department adopts plane spare and cambered surface spare. The main shaft is flexible to apply, the splicing positions can be flexibly selected in the splicing process of the multi-section main shafts, the mounting positions of the bearing seats and the purlines are effectively avoided, and the problem of interference in the mounting process is avoided.
In practice, the plane member 21 and the arc member 22 may be connected by bolts or rivets.
In this embodiment, the planar member 21 and the arc-shaped member 22 are both bending members.
The plane piece 21 is matched with one side of the mounting surface 11 of the main shaft 1, and the cambered surface piece 22 is matched with one side of the cambered surface 12 of the main shaft 1. Therefore, the attaching degree between the plane piece 21 and the cambered surface piece 22 and the main shaft 1 is increased, purlines and bearing seats can be seamlessly connected with the main shaft 1, and the looseness and the deviation caused by the integral vibration of a photovoltaic tracking support product in the future use process are greatly reduced.
Example 3
Fig. 6 schematically shows a principal axis of a photovoltaic tracking rack according to another embodiment of the present invention. As shown in the drawing, the difference from embodiment 1 is that the reinforcing means is a plurality of grooves 14 provided for the mounting surface 11.
The groove 14 is recessed inward of the main shaft 1 and its axial direction coincides with the axial direction of the main shaft 1. The groove 14 not only can strengthen the strength of the mounting surface 11, but also can increase the elasticity of the mounting surface 11, thereby buffering the instantaneous impact force of the purline on the main shaft 1.
Example 4
Fig. 7, 8 and 9 schematically show the main axis of a photovoltaic tracking rack according to another embodiment of the present invention. As shown in the figure, the difference from embodiment 2 is that the inside of the main shaft 1 may not be provided with the reinforcing means.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.
Claims (8)
1. The main shaft of the photovoltaic tracking support is characterized by being made of a pipe fitting with a closed cross section, the mounting surface of one side, used for mounting a purline, of the main shaft is a plane, two sides of the main shaft are parallel and perpendicular to the mounting surface, one side, opposite to the mounting surface, of the main shaft is an arc surface, and the two sides of the main shaft are the same in width.
2. The photovoltaic tracking rack spindle of claim 1, wherein the inner side wall of the mounting surface is provided with stiffening means for stiffening the strength of the mounting surface.
3. The main shaft of the photovoltaic tracking support according to claim 2, wherein the reinforcing device is a plurality of reinforcing ribs arranged along the axial direction of the main shaft.
4. The photovoltaic tracking rack spindle of claim 3, wherein a plurality of said ribs are parallel to one another.
5. The main shaft of the photovoltaic tracking support according to claim 2, wherein the reinforcing device is a plurality of grooves arranged on the mounting surface, the grooves are recessed towards the inside of the main shaft, and the axial direction of the grooves is coincident with the axial direction of the main shaft.
6. The main shaft of the photovoltaic tracking support according to claim 1, wherein a plurality of main shafts are coaxially connected to form one main shaft through a main shaft connecting piece, the main shaft connecting piece is sleeved and fixed at a connection position with the main shaft, the main shaft connecting piece is formed by combining a plurality of plane pieces and arc pieces, and the mounting surface and the arc surface are respectively arranged in the plane pieces and the arc pieces.
7. The photovoltaic tracking support main shaft according to claim 6, wherein the planar member and the cambered member are fixedly connected and enclose a closed tubular shape.
8. The main shaft of the photovoltaic tracking support according to claim 7, wherein the planar piece and the cambered piece are both copying bending pieces, the planar piece is matched with one side of the installation surface of the main shaft, and the cambered piece is matched with one side of the cambered surface of the main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911115480.5A CN110968116A (en) | 2019-11-14 | 2019-11-14 | Main shaft of photovoltaic tracking support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911115480.5A CN110968116A (en) | 2019-11-14 | 2019-11-14 | Main shaft of photovoltaic tracking support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110968116A true CN110968116A (en) | 2020-04-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911115480.5A Withdrawn CN110968116A (en) | 2019-11-14 | 2019-11-14 | Main shaft of photovoltaic tracking support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110968116A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114070188A (en) * | 2022-01-14 | 2022-02-18 | 永臻科技股份有限公司 | Single-shaft photovoltaic tracking aluminum support device convenient for field installation |
-
2019
- 2019-11-14 CN CN201911115480.5A patent/CN110968116A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114070188A (en) * | 2022-01-14 | 2022-02-18 | 永臻科技股份有限公司 | Single-shaft photovoltaic tracking aluminum support device convenient for field installation |
| CN114070188B (en) * | 2022-01-14 | 2022-04-08 | 永臻科技股份有限公司 | Single-shaft photovoltaic tracking aluminum support device convenient for field installation |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20201207 Address after: 363000 official Hill Industrial Park, Wuan Town, Changtai County, Zhangzhou, Fujian Applicant after: FUJIAN ZHANGZHOU ANTAI ALUMINIUM Co.,Ltd. Address before: 363000 official Hill Industrial Park, Wuan Town, Changtai County, Zhangzhou, Fujian Applicant before: FUJIAN ANTAI NEW ENERGY TECH. Corp. |
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200407 |