A kind of disc type photovoltaic tracking device
Utility model relates to a kind of photovoltaic tracking device, is specifically related to a kind of disc type photovoltaic tracking device, belongs to technical field of solar utilization technique.
At present, international energy problem has become various countries' focus.Effective utilization of fossil energy and the exploitation of new forms of energy become scientists study emphasis.When fossil fuel reduces increasingly, sun power has become the important component part that the mankind use the energy, and is constantly developed.The utilization of sun power has Passive use (photothermal deformation) and opto-electronic conversion two kinds of modes, and solar electrical energy generation is a kind of emerging regenerative resource.It is first-selected that solar electrical energy generation becomes current clean energy resource.
China's " 12 " plan " energy production and Land use systems change should be promoted ".By 2015, domestic installation weight reached 13GW in advance.The photovoltaic power generation apparatus of current employing mainly adopts: the kinds such as fixed power station, tracking mode power station, family power station, off-grid type power station.Various power large-scale electric generating station adopts centralized generating, that is needs to concentrate to capture the requirement that a large amount of land area just can reach centralized power generation.Wherein, the electricity of (photovoltaic plant compared to fixed angle) 20-30% can be improved in single shaft photovoltaic tracking power station.More be conducive to cost-recovering in a short time.
Utility model content
In view of this, the utility model provides a kind of disc type photovoltaic tracking device, wide level land can be effectively utilized to carry out photovoltaic generation, and electricity collection is got up backward near facility power or power to power transmission network, solar panel all the time just facing to sunlight, can considerably increase the photovoltaic utilization factor of land area of one unit.
A kind of disc type photovoltaic tracking device, the slide rail comprising track outer ring, track inner ring, pitching bracing frame, solar panel, pitching driving mechanism, circumferential driving mechanism and coordinate with track outer ring;
Described pitching bracing frame and track outer ring and track inner ring are connected to form a general frame structure, this general frame forms fixed part and movable part, described solar panel is fixedly connected with the movable part of general frame, and the fixed part that described pitching driving mechanism is fixedly connected on general frame structure can drive movable part to realize luffing; General frame structure is coordinated with the slide rail fixed on the ground by track outer ring, drives general frame structure to drive described solar panel to realize rotating in a circumferential direction by circumferential driving mechanism.
Further, described circumferential driving mechanism comprises driving-chain, reducing motor and sprocket wheel, and described reducing motor is fixedly connected on peripheral immobilizing foundation, and the output shaft of reducing motor is fixedly connected with sprocket wheel; The two ends of described driving-chain are fixedly connected on the outer circumference surface of track outer ring, and described sprocket wheel is between driving-chain with track outer ring and be meshed with driving-chain.
Further, described pitching bracing frame comprises connecting rod, fixed beam, portable beam and pull bar, described fixed beam is transversely fixedly connected on track outer ring and track inner ring with longitudinal, described portable beam is flexibly connected with described fixed beam by connecting rod, the top being positioned at described fixed beam of described portable beam level, described portable beam with between connecting rod also for being flexibly connected, one end of described pull bar is flexibly connected with portable beam, and the other end is flexibly connected with pitching driving mechanism; Described solar panel is fixedly connected with described portable beam with support plate by pole.
Further, described pitching driving mechanism comprises drive motor, gear shaft, gear, tooth bar and rack guide rail, described drive motor and rack guide rail are all fixedly connected on the fixed beam of described pitching bracing frame, described tooth bar rack guide rail is for being slidably matched, described drive motor is fixedly connected with gear by gear shaft, and described wheel and rack intermeshes.
1, circumferential driving mechanism of the present utility model realizes level angle by the form of dial rotation and rotates, and drives and adopts the form of chain and sprocket wheel to realize transmission, be convenient to realize accurate circumferential angle and control, the high and low cost of manufacture of transmission accuracy.
2, the utility model passes through pitching driving mechanism by cell panel horizontal positioned under exceedingly odious condition, to reduce the destruction of dust storm to cell panel, increases anti-blown sand ability.Sleet, hail weather, cell panel vertical display, reduces hail and destroys, avenges covering.When weather is fine, tracker reverts to normal tracking mode automatically.If need to safeguard, horizontally rotate, by cell panel sunlight dorsad, make that photovoltaic generating system is less even no longer produces electric power, facilitate workman's maintenance maintenance.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present utility model;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the structural representation of the utility model rotation mechanism in vertical shaft;
Fig. 4 is the structural representation of the utility model luffing mechanism;
Fig. 5 is the axonometric drawing of the utility model luffing mechanism.
Wherein, 1-track outer ring, 2-track inner ring, 3-bracing frame, 4-solar panel, 5-pitching driving mechanism, 6-driving-chain, 7-reducing motor, 8-sprocket wheel, 9-drive motor, 10-gear shaft, 11-gear, 12-tooth bar, 13-connecting rod, 14-fixed beam, 15-portable beam, 16-pull bar, 17-pole, 18-support plate, 19-rack guide rail.
To develop simultaneously embodiment below in conjunction with accompanying drawing, the utility model is described in detail.
As shown in figure 1 and 2, the utility model provides a kind of disc type photovoltaic tracking device, the slide rail comprising track outer ring 1, track inner ring 2, pitching bracing frame 3, solar panel 4, pitching driving mechanism 5, circumferential driving mechanism and coordinate with track outer ring 1;
As shown in Figure 3, described circumferential driving mechanism comprises driving-chain 6, reducing motor 7 and sprocket wheel 8, and described reducing motor 7 is fixedly connected on peripheral immobilizing foundation, and the output shaft of reducing motor 7 is fixedly connected with sprocket wheel 8; The two ends of described driving-chain 6 are fixedly connected on the outer circumference surface of track outer ring 1, and described sprocket wheel 8 is between driving-chain 6 with track outer ring 1 and be meshed with driving-chain 8.
As shown in figs. 4 and 5, described pitching bracing frame 3 comprises connecting rod 13, fixed beam 14, portable beam 15 and pull bar 16; Described pitching driving mechanism 5 comprises drive motor 9, gear shaft 10, gear 11, tooth bar 12 and rack guide rail 19;
Described fixed beam 14 is transversely fixedly connected on track outer ring 1 and track inner ring 2 with longitudinal, described portable beam 15 is hinged by connecting rod 13 and described fixed beam 14, the top being positioned at described fixed beam 14 of described portable beam 15 level, also be hinged between described portable beam 15 and connecting rod 13, one end and the portable beam 15 of described pull bar 16 are hinged, and the tooth bar 12 in the other end and pitching driving mechanism is hinged; Described solar panel 4 is fixedly connected with described portable beam 15 with support plate 18 by pole 17; Described drive motor 9 and rack guide rail 19 are all fixedly connected on the fixed beam 14 of described pitching bracing frame 3, described tooth bar 12 rack guide rail 19 is for being slidably matched, described drive motor is fixedly connected with gear 11 by gear shaft 10, and described gear 11 intermeshes with tooth bar 12.
Principle of work: when solar panel needs to carry out circumference rotation, reducing motor 7 is with movable sprocket 8 to rotate and by transmission of torque to driving-chain 6, two ends due to driving-chain 6 are fixedly connected on track outer ring 1, track outer ring 1 again with slide rail for being slidably matched, therefore realize circumference by track outer ring 1 driving device entirety and rotate; When solar panel needs to carry out angle of pitch change, drive motor 9 is rotated by gear shaft 10 driven gear 11, the rotation of gear 11 makes tooth bar 12 move horizontally along rack guide rail 19, the pull bar 16 that is translated across of tooth bar 12 pulls or promotes portable beam 15 and realizes rotating around the pin joint between portable beam 15 and fixed beam 14, realizes the change that solar panel needs to carry out the angle of pitch thus.
In sum, these are only preferred embodiment of the present utility model, be not intended to limit protection domain of the present utility model.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.