Rotary hydraulic damper for photovoltaic tracking bracket

Abstract

The invention discloses a photovoltaic tracking support rotary hydraulic damper which comprises a shell, the shell comprises two cover bodies, each cover body is provided with a through hole in the axial direction, one end, facing the other cover body, of each cover body is provided with a groove, the grooves are annularly formed outside the through holes, the two cover bodies are connected to enable the two grooves to define a cavity, and the cavity is provided with a through hole; hydraulic oil is arranged in the cavity, the cavity is divided into a first cavity body and a second cavity body by the first blocking piece and the second blocking piece, and the first cavity body is communicated with the second cavity body; the rotating core is rotatably arranged in the through holes of the two cover bodies and seals the cavity, the first blocking piece is connected to the rotating core and rotates along with the rotating core, and the second blocking piece is fixed in the cavity. According to the invention, vibration impact and rotary damping of the photovoltaic tracking support under the action of operation or the outside can be reduced, and the photovoltaic tracking support can also be applied when the photovoltaic tracking support rotates at a large angle; the structure is simple, and the cost is greatly reduced; auxiliary parts needed for installation are few, and time and labor are saved during installation or disassembly.