Double-shaft integral sun tracking driving device for eliminating off-axis error

Abstract

The invention relates to a double-shaft integral sun tracking driving device for eliminating the off-axis error. The device comprises a transmission box body and a U-shaped upright post support seat, wherein the two ends of the transmission box body are fixed onto the U-shaped upright post support seat through flanges; one end of the transmission box body is connected with the flange and is provided with a fixed component; a rotating shaft is arranged at the two sides of the transmission box body; a transmission component is arranged on the rotating shaft; each of the two ends of the rotating shaft is provided with a heliostat support frame; a first driving mechanism and a second driving mechanism are arranged on a transmission box bottom plate arranged in the transmission box body; the first driving mechanism runs around the fixed component; the second driving mechanism drives the transmission mechanism to operate. The double-shaft integral sun tracking driving device has the advantages that the structure is simple; the design is reasonable; the double shafts of a heliostat, i.e., a virtual shaft and the rotating shaft are designed into a coplanar crossing state, so that the centrifugal distance of the two shafts of the heliostat is zero; in addition, the rotating shaft and the heliostat support frames are directly and fixedly connected; the distance between the gravity center of the heliostat and the crossing point of the two transmission shafts is greatly reduced, so that the eccentric distance between the gravity center of the heliostat of the type and the rotating shaft is effectively reduced.

Description

technical field [0001] The invention relates to a dual-axis integrated solar tracking drive device for eliminating off-axis errors, and belongs to the technical field of fixed solar environment drives. Background technique [0002] The heliostat is a very important device in the initial stage of energy conversion in the tower solar thermal power generation system. Thousands of heliostats are usually used in the tower system, which continuously track the solar radiation energy through their independent control systems, and focus the energy on the heat absorber on the top of the tower, and then use it in the form of heat energy. Therefore, the design of the heliostat is one of the important links in the design of the tower solar thermal power generation system, and it is the basis for reducing the cost of power generation and realizing the commercialization of solar thermal power generation. [0003] Heliostats are usually composed of four parts: bracket, transmission system,...

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Problems solved by technology

[0007] The purpose of the present invention is to provide a dual-axis integrated solar tracking drive device that eliminates off-axis errors in view of the fact that the current technology cannot meet the existing needs. The two-axis centrifugal distance of the heliostat is zero, and the rotating shaft is directly fixedly connected with the heliostat bracket, which greatly reduces the distance between the center of gravity of the heliostat and the intersection of the two transmission shafts, thus effectively reducing the The eccentric distance between the center of gravity and the rotating shaft solves the structural problems of this type of heliostat

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