CN211239773U

CN211239773U - Photovoltaic support tracking means

Info

Publication number: CN211239773U
Application number: CN202020145294.8U
Authority: CN
Inventors: 吴建农; 郑道涛; 周孝水; 周会晶
Original assignee: Tonking New Energy Technology Jiangshan Co ltd
Current assignee: Tonking New Energy Technology Jiangshan Co ltd
Priority date: 2020-01-22
Filing date: 2020-01-22
Publication date: 2020-08-11
Anticipated expiration: 2030-01-22

Abstract

The utility model provides a photovoltaic support tracking means, is including setting up take self-locking function's worm gear speed reducer on the photovoltaic support, the rotation of a big rope sheave of worm gear speed reducer drive through its transmission shaft to and then drive photovoltaic module turn to. According to the utility model discloses a photovoltaic support tracking means directly or indirectly drives by the moment of torsion between the photovoltaic main shaft, makes the system architecture atress more reasonable, and the power that does not have the unfavorable support tracking produces, reduces harmful load's stack greatly, and very big lowering system avoids unstability problem and fatigue failure problem to drive equipment's requirement, has improved photovoltaic support and photovoltaic array's security performance.

Description

Photovoltaic support tracking means

Technical Field

The utility model relates to a solar photovoltaic support especially relates to a photovoltaic support tracking means.

Background

When the solar photovoltaic panel, especially a large-area solar photovoltaic panel array or a photovoltaic system, is installed on the ground or on the water surface, the movement of the sun needs to be tracked in real time, and the orientation (for example, the movement from east to west) of the photovoltaic module is adjusted, so that sunlight directly irradiates to a light receiving plane of the photovoltaic panel, and the photovoltaic power generation amount is improved. The existing photovoltaic support device, such as the tracking device 10 shown in fig. 1, has a tracking mechanism that uses a push rod 101 of a steel pipe type profile to cooperate with a steering swing arm, and the thrust and the tension generated by the push rod control the steering of the photovoltaic module. Although, for tensile forces, the steel pipe will only be damaged when it is subjected to tensile forces exceeding the strength limit of the steel pipe material; for the thrust, the steel pipe can be damaged when bearing the thrust action exceeding the strength limit of the steel pipe material, and the steel pipe also has the problem of pressure lever stability, namely the steel pipe has the instability phenomenon, and the thrust required by the steel pipe instability is inversely proportional to the square of the length of the steel pipe, namely the longer the steel pipe is, the smaller the thrust required by the instability is and the reduction of the square root is. Therefore, for the project with large east-west span, the sectional area of the steel pipe needs to be greatly increased under the condition that the steel pipe bears the same pushing force or pulling force, so as to avoid the instability problem. And to the more project of unipolar subassembly, the steel pipe needs to undertake bigger thrust or pulling force, under the unchangeable condition of east west to the span, needs the sectional area of greatly increased steel pipe equally, just can avoid the unstability problem. The cost performance of steel pipe linkage is greatly reduced, and the steel pipe has the risk of instability.

In addition, the linkage steel pipe used as the push rod can bear the alternate action of larger tension and pressure, and is easy to generate fatigue fracture; when the rotation angle of the linkage steel pipe exceeds more than 50 degrees, one component force is large, and the support is not easy to track; the linkage steel pipes are rigidly connected, and once a column of supports in the array are damaged, a chain reaction is easy to occur, so that all the supports in the same connection are damaged. Furthermore, the push rod of the linkage steel pipe has high requirements on the driving device.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's above-mentioned defect, provide a photovoltaic support tracking means.

According to the utility model discloses a photovoltaic support tracking means, be in including setting up take self-locking function's worm gear speed reducer on the photovoltaic support, worm gear speed reducer is through the rotation of its big rope sheave of transmission shaft drive to and drive photovoltaic module turn to.

The big rope sheave includes semi-circular rim and spoke, the central part of big rope sheave is provided with photovoltaic main shaft mount pad.

The worm gear speed reducer drives the large rope wheel to rotate through a traction rope.

The hauling rope is an iron chain, a short-loop chain, a steel wire rope or a nylon rope.

The photovoltaic support further comprises a driving device for driving the worm gear speed reducer to operate.

The driving device is a driving device with a speed reducer.

The driving device is a rotary speed reducer or a speed reducing motor.

The worm of the worm gear speed reducer is provided with a universal joint, and the worm gear speed reducer on the adjacent photovoltaic support can be connected through a connecting steel pipe.

A chain wheel is arranged on a worm of the worm gear speed reducer, and the worm gear speed reducer on the adjacent photovoltaic support can be connected through a short-chain.

The outer side surface of the semicircular wheel rim is provided with a groove, and the traction rope is embedded in the groove.

According to the utility model discloses a photovoltaic support tracking means, direct or indirect drive by the moment of torsion between the photovoltaic main shaft makes the system architecture atress more reasonable, and the power that does not have the unfavorable support tracking produces, reduces the stack of harmful load greatly, and very big lowering system avoids unstability problem and fatigue failure problem to drive equipment's requirement, when improving system security performance, can realize the multiaxis linkage of large-span, multicomponent.

Drawings

Fig. 1 is a schematic diagram showing a photovoltaic support of the prior art.

Fig. 2 is a schematic diagram illustrating a photovoltaic stent tracking device according to an embodiment of the present invention.

Fig. 3 is a perspective view illustrating a large sheave of the photovoltaic stent tracking device shown in fig. 2.

Fig. 4 is a schematic view of an alternative embodiment of the large sheave of fig. 3.

Fig. 5 is a schematic diagram illustrating a photovoltaic stent tracking device according to another embodiment of the present invention.

Fig. 6 is a schematic diagram illustrating a photovoltaic stent tracking device according to another embodiment of the present invention.

Detailed Description

The photovoltaic stent tracking device of the present invention will be described in detail with reference to the accompanying drawings and embodiments, and those skilled in the art will understand that the embodiments shown in the drawings are merely schematic and are used to help understand the basic concept of the present invention.

Fig. 2 is a schematic diagram illustrating a photovoltaic stent tracking device according to an embodiment of the present invention. Referring to fig. 2, a worm gear reducer (or similar device with self-locking function) 32 is disposed on the top of the support column 30, a large rope pulley 36 is disposed on the photovoltaic main shaft 11, and traction ropes 365 are fixed to two ends of the large rope pulley 36, for example, and the traction ropes 365 are sleeved on a transmission shaft of the worm gear reducer 32, for example.

Fig. 3 is a perspective view illustrating a large sheave of the photovoltaic stent tracking device shown in fig. 2. Referring to fig. 3 and 2 in combination, the large sheave 36 includes, for example, a semicircular rim 361 and spokes 362, and a photovoltaic spindle mount 364 is provided at a central portion of the large sheave. Specifically, photovoltaic spindle mounts 364 are provided at both ends of the semicircular rim 361, for example. The mounting seat 364 is composed of, for example, mounting bars 3641 fixed to both ends of the semicircular rim 361 and a mounting hoop 3642 located in the middle of the mounting bars 3641, and the photovoltaic main shaft 11 is, for example, inserted into the mounting hoop 3642 and fixed by a fixing member (not shown) such as a bolt or a rivet.

Fig. 4 is a schematic view of an alternative embodiment of the large sheave of fig. 3. Referring to fig. 2 and 4 in combination, the large sheave 36 includes, for example, a semicircular rim 361 ' and spokes 362 ', and the central portion of the large sheave is provided with a photovoltaic spindle mount 364 ', and specifically, the central portion of the spokes 362 ' is provided with a photovoltaic spindle mount 364 ', and the photovoltaic spindle 11 is mounted on the large sheave 36 by, for example, a fastener such as a bolt or a rivet.

A traction rope 365 (such as a steel wire rope, a short link chain, an iron chain, or a nylon rope) is fixed to each end of the large sheave 36, for example, and the traction rope 365 is fitted around the transmission shaft of the worm gear reducer 32, for example. When the worm gear reducer 32 operates, the large rope pulley 36 is driven to rotate by the traction rope 365, and the photovoltaic main shaft 11 is further driven to rotate, so that the photovoltaic module 12 mounted on the photovoltaic main shaft 11 can track the movement of the sun in the east and west directions, for example. In a preferred embodiment, the outside surfaces of the semicircular rims 361 and 361' are provided with grooves, and the pulling rope 365 can be embedded in the grooves when in operation, so that the pulling rope 365 can be always in a tensioned state, and the tracking accuracy of the photovoltaic module 12 is ensured.

According to the utility model discloses a photovoltaic support tracking means, because big rope sheave 36 is rotatory for moment of torsion output and drive photovoltaic main shaft with worm gear speed reducer 32's cooperation, it is more reasonable to drive the push rod than in the transmission structure, so does not have adverse factor to the production of the stable power of support. Moreover, the large rope wheel 36 and the worm gear reducer 32 are matched to greatly reduce the load superposition effect, so that the safety of the photovoltaic support and even the whole photovoltaic array can be improved compared with the prior art.

Further, according to the utility model discloses a photovoltaic support tracking means, the reduction gears who comprises big rope sheave 36 and worm gear speed reducer 32 has reduceed the support to drive arrangement's requirement, and on the other hand, every photovoltaic support is relatively independent, can effectively protect the supporting structure not receive destruction, promptly, avoids the damage of a support to make other supports damage simultaneously in succession, guarantees whole photovoltaic array's safe operation.

Fig. 5 is a schematic diagram illustrating a photovoltaic stent tracking device according to another embodiment of the present invention. Referring to fig. 5, unlike the photovoltaic support tracking apparatus shown in fig. 2, the tracking apparatus shown in fig. 5 is obtained by adding a driving device 31 to the apparatus shown in fig. 2, wherein the driving device 31 is, for example, a driving device with a speed reducer or a slewing reducer or a speed reduction motor. The worm gear reducer (or similar equipment with self-locking function) 32 is connected with the driving equipment 31, namely the driving equipment 31 can drive the worm gear reducer 32 to run. Preferably, for example, a universal joint 63 is provided on the worm of the worm gear reducer 32, and the worm gear reducer 32 on the adjacent photovoltaic support can be connected through a connecting steel pipe 65, so that a series synchronous driving system can be formed.

Fig. 6 is a schematic diagram illustrating a photovoltaic stent tracking device according to another embodiment of the present invention. Referring to fig. 6, unlike the tracking device shown in fig. 5, the tracking device shown in fig. 6 is, for example, provided with a sprocket 34 on the worm of the worm gear reducer 32, and couples the worm gear reducers 32 on adjacent photovoltaic supports by, for example, a short link chain 35, so as to form a series synchronous driving system.

According to the utility model discloses a photovoltaic support tracking means, because big rope sheave 36 and worm gear speed reducer 32 are rotatory for moment of torsion output and drive photovoltaic main shaft until the cooperation with drive arrangement 31, and the push rod drive of the structural ratio of transmission is more reasonable, so does not have adverse factor to the production of the stable power of support. Moreover, the cooperation of the large sheave 36 with the worm gear reducer 32 up to the drive device 31 allows to apply external loads, for example, to a limited extent on a single support, or to reduce greatly the effect of load superposition, so that the safety of the photovoltaic support and therefore of the entire photovoltaic array can be improved with respect to the prior art.

The above description is only a few embodiments of the photovoltaic rack tracking device of the present invention, and according to the above concept of the present invention, those skilled in the art can make various changes and modifications thereto, but these changes and modifications all belong to the scope of the present invention.

Claims

1. The photovoltaic support tracking device is characterized by comprising a worm gear speed reducer with a self-locking function, which is arranged on the photovoltaic support, wherein the worm gear speed reducer drives a large rope wheel to rotate through a transmission shaft of the worm gear speed reducer so as to drive the photovoltaic assembly to turn.

2. The apparatus of claim 1, wherein the large sheave comprises a semicircular rim and spokes, and a photovoltaic spindle mount is provided at a central portion of the large sheave.

3. The apparatus of claim 2, wherein the worm gear reducer drives rotation of the large sheave via a traction rope.

4. The apparatus of claim 3, wherein the pull line is an iron chain, a short-link chain, a steel wire rope, or a nylon rope.

5. The apparatus of claim 1, wherein the photovoltaic support further comprises a driving device for driving the worm gear reducer to operate.

6. The apparatus of claim 5, wherein the drive device is a reducer-equipped drive device.

7. The apparatus of claim 5, wherein the drive device is a rotary reducer or a gear motor.

8. The device as claimed in claim 6 or 7, wherein the worm of the worm gear speed reducer is provided with a universal joint, and the worm gear speed reducer on the adjacent photovoltaic support can be connected through a connecting steel pipe.

9. The device as claimed in claim 6 or 7, wherein the worm of the worm gear speed reducer is provided with a chain wheel, and the worm gear speed reducer on the adjacent photovoltaic support can be connected through a short-chain.

10. The apparatus of claim 3, wherein the semi-circular rim has a groove in an outer surface thereof, and the pull cord is embedded in the groove.