CN216531163U

CN216531163U - Spring device for adjusting center of gravity of photovoltaic tracking support

Info

Publication number: CN216531163U
Application number: CN202123088745.2U
Authority: CN
Inventors: 余松秦; 林明坚; 李翔
Original assignee: Xiamen Kewei Intelligent Technology Co ltd
Current assignee: Xiamen Kesheng New Energy Co.,Ltd.
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-05-13
Anticipated expiration: 2031-12-10

Abstract

A spring device for adjusting the gravity center of a photovoltaic tracking support comprises an upright post, a photovoltaic assembly and a main shaft, wherein an elastic offsetting eccentric force mechanism is further arranged on the main shaft; according to the utility model, a large enough resilience force is provided by stretching or compressing the spring device to pull or push the torsion angles at the two ends of the main shaft in the opposite directions, so that the torsion angle generated by the gravity eccentricity of the main shaft is eliminated, and the purpose of reducing the gravity center of the photovoltaic tracking support is achieved.

Description

Spring device for adjusting center of gravity of photovoltaic tracking support

Technical Field

The utility model belongs to the technical field of solar photovoltaic frame accessory devices, and particularly relates to a spring device for adjusting the gravity center of a photovoltaic tracking support.

Background

The flat single-shaft photovoltaic tracking support assembly is arranged on a rotating center, after the photovoltaic tracking support rotates for a certain angle, a main shaft of the rotating center can generate a certain torsion angle due to gravity eccentric moment, the larger the rotation angle is, the larger the torsion deformation of the main shaft is, the photovoltaic assemblies are not on the same plane, the attractiveness is influenced, the tracking precision is poorer, the photovoltaic assemblies are influenced to receive solar radiation, and the photovoltaic power generation quantity is influenced; and the traditional flat single-shaft tracking support is longer in length and lower in torsional rigidity of the main shaft, although the rigidity and the damping ratio of the support are improved by adding the damper, the cost of the damper is higher, and the damper cannot eliminate the deformation of the main shaft caused by gravity eccentricity.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides a spring device which can pull or push the torsion angles at two ends of a main shaft in the opposite directions through the elasticity of a spring and eliminate the torsion angle of the main shaft generated by gravity eccentricity.

The utility model is realized by the following technical scheme: the utility model provides a spring assembly for adjusting photovoltaic tracking support focus, includes stand, photovoltaic module and main shaft, its characterized in that still be provided with elasticity on the main shaft and offset eccentric power mechanism.

The main shaft is a rotation center, and the photovoltaic module is fixed on the main shaft through purlins.

The elastic offsetting eccentric force mechanism consists of a spring swing arm hoop, a spring swing arm, a spring I and a spring fixing support; the spring swing arm hoop and the spring swing arm are fixed on the main shaft through bolts, the spring fixing support is fixed on the stand column through bolts, the fixing clamping hook at the upper end of the first spring hooks the fixing hole in the spring swing arm, and the fixing clamping hook at the lower end of the first spring hooks the fixing hole in the spring fixing support.

The elastic eccentric force counteracting mechanism consists of a piston support hoop, an upper piston fixing support, a second spring, a lower piston fixing support, an inner limiting piston and an outer limiting piston.

The hoop of the piston bracket and the upper fixing bracket of the piston are fixed on the main shaft through bolts, the lower fixing bracket of the piston is fixed on the upright post through bolts, the second spring passes through the inner limiting piston, and the inner limiting piston is connected with the upper fixing bracket of the piston through a pin; the outer limiting piston penetrates through the second spring and is fixedly connected with the outer limiting piston fixing flange through a bolt, and the outer limiting piston fixing flange is connected with the lower piston fixing support through a pin.

Compared with the prior art, the photovoltaic tracking support has the advantages that the spring device is stretched or compressed to provide large resilience force to pull or push the torsion angles at the two ends of the main shaft in the opposite direction, so that the torsion angle of the main shaft generated by gravity eccentricity is eliminated, and the purpose of reducing the gravity center of the photovoltaic tracking support is achieved.

Drawings

The utility model is described in detail below with reference to the attached drawing figures:

fig. 1 is a schematic diagram of an embodiment of the utility model.

Fig. 2 is an enlarged schematic view of a point a in fig. 1.

FIG. 3 is a diagram illustrating a second embodiment of the present invention.

Fig. 4 is an enlarged schematic view of B in fig. 3.

The following are specific names of the various identifiers in the figure: 1. a photovoltaic module; 2. a main shaft; 3. a column; 4. a purlin; 5. a spring swing arm hoop; 6. a spring swing arm; 7. a first spring; 8. a spring fixing bracket; 9. an inner limit piston; 10. a second spring; 11. an outer limit piston; 12. a piston lower fixing bracket; 13. a piston bracket hoop; 14. a bracket is fixed on the piston; 15. the outer limit piston fixes the flange.

Detailed Description

In the first embodiment, as shown in fig. 1 and 2, a spring device for adjusting the center of gravity of a photovoltaic tracking support comprises a column 3, a photovoltaic module 1, a main shaft 2, a spring swing arm hoop 5, a spring swing arm 6, a first spring 7 and a spring fixing support 8; spring swing arm staple bolt 5 and spring swing arm 6 pass through the bolt fastening on main shaft 2, and spring fixed bolster 8 passes through the bolt fastening on stand 3, and the upper end fixing clip hook of spring 7 hooks in the fixed orifices on spring swing arm 6, and the lower extreme fixing clip hook of spring 7 hooks in the fixed orifices on spring fixed bolster 8.

The main shaft 2 is a rotation center, and the photovoltaic module 1 is fixed on the main shaft 2 through a purline 4.

When photovoltaic module 1 was rotatory around main shaft 2, spring swing arm 6 will follow an angle of rotation, and spring 7 will be stretched, and the elastic force that spring 7 produced will reverse action on the main shaft rotation center, and this reverse acting force will offset the torsion angle that produces by the produced positive eccentric moment of photovoltaic module 1 and purlin 4 eccentric mounting to reach the mesh that reduces photovoltaic tracking support focus.

In the second embodiment, as shown in fig. 3 and 4, a spring device for adjusting the center of gravity of a photovoltaic tracking support comprises a column 3, a photovoltaic module 1, a spindle 2, a piston support hoop 13, an upper piston fixing support 14, a second spring 10, a lower piston fixing support 12, an inner limit piston 9, and an outer limit piston 11.

The piston bracket hoop 13 and the upper piston fixing bracket 14 are fixed on the main shaft 2 through bolts, the lower piston fixing bracket 12 is fixed on the upright post 3 through bolts, the second spring 10 penetrates through the inner limiting piston 9, and the inner limiting piston 9 is connected with the upper piston fixing bracket 14 through pins; the outer limiting piston 11 penetrates through the second spring 10 and is fixedly connected with an outer limiting piston fixing flange 15 through a bolt, and the outer limiting piston fixing flange 15 is connected with the lower piston fixing support 12 through a pin.

When the support is trailed to photovoltaic round main shaft 2 rotatory, fixed bolster 14 will follow an angle of rotation on the piston, interior spacing piston 9 will be pulled open with outer spacing piston 11, two 10 springs that lie in this moment between interior spacing piston 9 and the outer spacing piston 11 will be compressed by spacing piston in the twinkling of an eye, the elastic force of production will reverse action on rotatory center, this reverse action will offset the torsion angle that produces by the produced forward eccentric moment of photovoltaic module 1 and purlin 4 eccentric mounting, in order to reach the purpose that reduces the support focus is trailed to photovoltaic.

The damper is replaced by the spring, and the torsion angle generated by gravity eccentric moment caused by eccentric installation of the photovoltaic module is counteracted by the reverse acting force generated by adopting a stretching or compressing structure of the spring, so that the condition of torsion at two ends is improved, the load of a driving motor is reduced, and the power generation capacity of the photovoltaic tracking system is improved; on the other hand, the cost of the bracket is reduced, and the rigidity and the damping ratio of the bracket system are improved.

Claims

1. The utility model provides a spring assembly for adjusting photovoltaic tracking support focus, includes stand, photovoltaic module and main shaft, its characterized in that still be provided with elasticity on the main shaft and offset eccentric power mechanism.

2. The spring device for adjusting the center of gravity of a photovoltaic tracking support according to claim 1, wherein the main shaft is a rotation center, and the photovoltaic module is fixed on the main shaft through a purlin.

3. The spring device for adjusting the center of gravity of the photovoltaic tracking support according to claim 1, wherein the elastic offsetting eccentric force mechanism is composed of a spring swing arm hoop, a spring swing arm, a spring I and a spring fixing support; the spring swing arm hoop and the spring swing arm are fixed on the main shaft through bolts, the spring fixing support is fixed on the stand column through bolts, the fixing clamping hook at the upper end of the first spring hooks the fixing hole in the spring swing arm, and the fixing clamping hook at the lower end of the first spring hooks the fixing hole in the spring fixing support.

4. The spring device for adjusting the center of gravity of the photovoltaic tracking support as claimed in claim 1, wherein the elastic eccentric force counteracting mechanism is composed of a piston support hoop, an upper piston fixing support, a second spring, a lower piston fixing support, an inner limit piston and an outer limit piston.

5. The spring device for adjusting the center of gravity of the photovoltaic tracking support according to claim 4, wherein a piston support hoop and a piston upper fixing support are fixed on the main shaft through bolts, a piston lower fixing support is fixed on the upright post through bolts, a second spring penetrates through an inner limiting piston, and the inner limiting piston is connected with the piston upper fixing support through a pin; the outer limiting piston penetrates through the second spring and is fixedly connected with the outer limiting piston fixing flange through a bolt, and the outer limiting piston fixing flange is connected with the lower piston fixing support through a pin.