SE3 Zero Backlash Hourglass Worm Gear Drive For One Axis Solar
Tracking System
Worm Gear Sets Description
SE single axis slewing drive is a critical component in both single
axis solar tracking system and dual axis solar tracking system.
Besides, with its perfect and high backlash, it can also applied in
CSP and CPV system, wind energy, antenna which need higher
backlash.
What is Single Axis Solar Trackers
A single-axis tracker orients PV modules along one axis of
rotation, moving horizontally from east to west as the sun moves.
Moving these PV modules requires the reducer offer both
load-holding and rotational torque – something only a highly
specialized slewing drive can offer. Trackers applied slewing
drives technologied with hourglass worm can engage a greater number
of teeth on the pitch line of the gear ring, offer the maximum
amount of strength, durability and performance. This ensures the
tracker has the longest possible field life with the least amount
of downtime or maintenance cost.
Performance Parameters of SE series
| SE Model Performance Parameters |
| Model | Rated Output Torque (N.m) | Tilting Torque (N.m) | Holding Torque (N.m) | Axial Load (kN) | Radial Load (kN) | Ratio | Efficiency | Precision (degree) | IP | Working Tep. (℃) | Self- locking | Weight (kg) |
| 1" | 400 | 1000 | 1800 | 22 | 12 | 32:1 | 40% | ≤0.1 | 66 | -40～+120 | Yes | 6 |
| 3" | 600 | 1500 | 3000 | 30 | 16 | 31:1 | 40% | ≤0.1 | 66 | -40～+120 | Yes | 8 |
| 5" | 800 | 6000 | 9200 | 68 | 27 | 37:1 | 40% | ≤0.1 | 66 | -40～+120 | Yes | 12 |
| 7" | 2000 | 13500 | 13200 | 132 | 58 | 57:1 | 40% | ≤0.1 | 66 | -40～+120 | Yes | 21 |
| 9" | 4400 | 45000 | 30800 | 340 | 130 | 61:1 | 40% | ≤0.1 | 66 | -40～+120 | Yes | 49 |
| 12" | 5800 | 54400 | 40560 | 480 | 190 | 78:1 | 40% | ≤0.1 | 66 | -40～+120 | Yes | 61 |
| 14" | 6550 | 68000 | 54200 | 680 | 230 | 85:1 | 40% | ≤0.1 | 66 | -40～+120 | Yes | 63 |
| 17" | 9400 | 135600 | 65040 | 980 | 390 | 102:1 | 40% | ≤0.1 | 66 | -40～+120 | Yes | 105 |
| 21" | 16000 | 203400 | 81000 | 1600 | 640 | 125:1 | 40% | ≤0.1 | 66 | -40～+120 | Yes | 149 |
| 25" | 21000 | 271160 | 89000 | 2400 | 950 | 150:1 | 40% | ≤0.1 | 66 | -40～+120 | Yes | 204 |
Applications
There are four kinds of solar photovoltaic automatic tracking
systems that are widely used, including horizontal single-axis
tracking, double-column inclined single-axis tracking, vertical
single-axis tracking and dual-axis tracking, among which horizontal
single-axis tracking and inclined single-axis tracking, vertical
single-axis tracking only One rotational degree of freedom, and
dual-axis tracking has two rotational degrees of freedom.
The tracking control strategy adopted by the three tracking systems
is an active tracking control strategy, which calculates the
position of the sun in the sky and controls the orientation of the
photovoltaic array. This active photovoltaic automatic tracking
system can be better applied to the environment with more frost,
snow and sand, and can also work reliably in unattended
photovoltaic power plants.
