Flat single shaft tracking support

Abstract

The invention discloses a flat single shaft tracking support. The flat single shaft tracking support comprises a supporting upright post, a main beam, a cell panel and a driving mechanism, wherein an eccentric bearing is arranged on the top of the supporting upright post; the main beam is fixedly arranged in the eccentric bearing; the cell panel is fixedly arranged above the main beam through a fixed mechanism; the driving mechanism is used for driving the main beam to be arranged on the top of the supporting upright post in a rotating manner around the direction of the axial lead of the main beam; the cell panel, the main beam and the eccentric bearing are combined to form a rotating mechanism; and the eccentric bearing is used for enabling the center of gravity of the rotating mechanism to be positioned on the rotation center line of the main beam. According to the flat single shaft tracking support disclosed by the invention, by using the eccentric bearing, the center of gravity of the rotating mechanism is positioned on the rotation center line of the main beam, so that the influence caused by eccentric torsion of gravity is reduced; aluminum alloy trapezoidal purlines are used for replacing traditional steel structure purlines, the amount of fasteners is greatly reduced on the premise of not reducing fixed mechanism strength and stability; and by setting a damper, the vibration of the structure in a dynamic load condition is effectively reduced, and the fatigue life of the structure is prolonged.

Description

technical field [0001] The invention relates to a flat uniaxial tracking bracket. Background technique [0002] At present, the solar flat single-axis tracking bracket has obvious advantages in terms of power generation compared with fixed brackets due to real-time tracking of the sun's azimuth. The flat uniaxial tracking bracket mainly bears wind load and gravity eccentric load in the process of tracking the sun. The existing flat single-axis structure is divided into two types in form in order to reduce the cost and reduce the number of driving mechanisms as much as possible. One is the single-row driving system, that is, one driving mechanism drives a row of tracker units. The characteristic is that the span of each row of tracker units is longer; the other is a multi-row linkage mechanism, that is, one drive mechanism drives several rows of tracker units at the same time. Compared with the single-row drive form, the span of each row is correspondingly reduced. , the sy...

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Problems solved by technology

According to the above two different forms, the existing flat single-axis structure generally has the following defects that need to be improved: the center of rotation does not coincide with the center of gravity of the upper grid, which increases the load of the driving mechanism and reduces the stability of the structure; the single-row drive Due to the large span, the vibration amplitude at both ends is large under the action of wind load, and the fatigue life cannot be guaranteed; there are many fasteners installed, and the installation work intensity is high; the multi-row linkage structure is complicated, and the input cost of the drive structure is high

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