Slow Speed Small Solar Tracker Slewing Drive For Photovoltaic
Automatic Tracking System
Small Solar Tracker Slewing Drive Description
As a clean and non-polluting energy, solar energy has a very broad
development prospect and has become a green energy developed by all
countries. But solar energy suffers from low density, intermittent
nature, and constant changes in light direction and intensity over
time. The traditional fixed photovoltaic system is to fix the solar
panel on the bracket, so that the photovoltaic panel array faces
the sun at a certain angle, which will not change with the position
of the sun, which affects the photoelectric conversion efficiency.
If there is a 25-degree deviation between the photovoltaic system
and the sun's rays, the output power of the photovoltaic array will
drop by about 10% due to the reduction of vertically incident
radiant energy. From day to night, the rise and fall of the sun and
the angle of the sun's rays change all the time. Therefore, if the
system can change the angle of the panel array with the angle of
the light, the photovoltaic conversion rate can be improved. This
can be achieved with a single-axis tracking system and a dual-axis
tracking system using a slewing drive.
Parameters of SE Series
| Model | Ratio | Rated Output Torque(N.m) | Tilting Torque (N.m) | Holding Torque(N.m) | Axial Load(kN) | Radial Load(kN) | Efficiency | Precision(°) | Self-locking | Weight(kg) |
| 1” | 32:1 | 400 | 1000 | 1800 | 22 | 12 | 40% | ≤0.1 | Yes | 6 |
| 3” | 31:1 | 600 | 1500 | 3000 | 30 | 16 | 40% | ≤0.1 | Yes | 8 |
| 5” | 37:1 | 800 | 6000 | 9200 | 68 | 27 | 40% | ≤0.1 | Yes | 12 |
| 7” | 57:1 | 2000 | 13500 | 13200 | 132 | 58 | 40% | ≤0.1 | Yes | 21 |
| 9” | 61:1 | 4400 | 45000 | 30800 | 340 | 130 | 40% | ≤0.1 | Yes | 49 |
| 12” | 78:1 | 5800 | 54400 | 40560 | 480 | 190 | 40% | ≤0.1 | Yes | 61 |
| 14” | 85:1 | 6550 | 68000 | 54200 | 680 | 230 | 40% | ≤0.1 | Yes | 63 |
| 17” | 102:1 | 9400 | 135600 | 65040 | 980 | 390 | 40% | ≤0.1 | Yes | 105 |
| 21” | 125:1 | 16000 | 203400 | 81000 | 1600 | 640 | 40% | ≤0.1 | Yes | 149 |
| 25” | 150:1 | 21000 | 271160 | 89000 | 2400 | 950 | 40% | ≤0.1 | Yes | 204 |
DC Motor
1. Adopt Dual supporting structure for output shaft so that the max
torque of gearbox is increased a lot.
2. Sun wheel and planetary wheel are connected by spline which
increase the max torque of gearbox and lengthen the life.
3. We use helical gear at input stage which make the noise low anf
run smoothly in high speed. The inner gear ring is separated so that we can make more ratio and
the design is flexible. Gearbox and motor are located by a seam fix by screw in axial which
increase the matching precision and reduce noise.
4. We use rolling pin holder inside planetary wheel.we use rolling
pin grinding instead of sliding grinding so the life of gearbox is
much longer.
5. Double supporting structure; Internal grinding on inner bore of
planetary gears making the inner bore roundness less than
0.003mm;running by rolling instead of sliding; HRC60 gear surface
precision scraping;The adopting of all these technoligies ensure
the super quiet and steady operating and a long life time over
10000 hours.
