IP66 Single Axis Small Rotatory Slewing Drive For Outdoor Use Solar
Trackers
Small Rotatory Slewing Drive Description
The slewing drive, also called the rotary drive and gearbox because
the core components are the slewing bearing and worm shaft. It also
consists of auxiliary components such as seals, housing, and motor.
As a power source, slew motor used DC planetary gear motor, AC gear
motor or stepper motor. AC hydraulic motor is mainly used in the
construction machinery as a power drive system. As the core
component is slewing ring drive, slewing gearbox can readily
withstand the axial and radial forces.
The slew drive working principle: The worm is driven by the motor,
which drives the outer ring of the slewing ring to rotate; The
outer ring output the torque through the flange and the inner ring
of the slewing ring is fixed in the housing.
Slewing drive has reverse self-locking because of worm gear drive
with reverse self-locking characteristics. This feature greatly
enhances the stability of the host operating and safety factor.
Compared to the traditional swing products, slewing drive gearbox
is easy to install, easy to maintain, and saves considerable
installation space.
The slewing drive is a new type of slewing product, usually called
slewing ring, which is usually composed of worm, slewing ring,
housing, motor and other components. Since the core components are
slewing bearings, they can simultaneously withstand axial forces,
radial forces, and overturning moments. Compared with traditional
rotary products, the new slewing drive features easy installation,
easy maintenance and a greater degree of installation space.
VE Model Performance Parameters
| VE Model Performance Parameters |
| Model | Rated Output Torque (N.m) | Holding Torque (kN.m) | Tilting Torque (kN.m) | Axial Load (kN) | Radial Load (kN) | Ratio | Efficiency | Precision (Degree) | IP | Working Tep(℃) | Self-locking | Weight(kg) |
| 3" | 806 | 9 | 5 | 22 | 15 | 31:1 | 40% | ≤0.15 | 66 | -40～+80 | Yes | 12kg |
| 5" | 962 | 30 | 6 | 16 | 27 | 37:1 | 40% | ≤0.15 | 66 | -40～+80 | Yes | 18kg |
| 7" | 7344 | 60 | 10 | 34 | 58 | 51:1 | 40% | ≤0.15 | 66 | -40～+80 | Yes | 32kg |
| 8" | 8000 | 70 | 14 | 50 | 80 | 50:1 | 40% | ≤0.15 | 66 | -40～+80 | Yes | 28kg |
| 9" | 8784 | 80 | 16 | 60 | 130 | 61:1 | 40% | ≤0.15 | 66 | -40～+80 | Yes | 52kg |
| 12" | 11232 | 100 | 25 | 77 | 190 | 78:1 | 40% | ≤0.15 | 66 | -40～+80 | Yes | 65kg |
| 14" | 12240 | 120 | 48 | 110 | 230 | 85:1 | 40% | ≤0.15 | 66 | -40～+80 | Yes | 88 kg |
| 17" | 14688 | 136 | 67 | 142 | 390 | 102:1 | 40% | ≤0.15 | 66 | -40～+80 | Yes | 135 kg |
| 21" | 18000 | 140 | 89 | 337 | 640 | 125:1 | 40% | ≤0.15 | 66 | -40～+80 | Yes | 192 kg |
| 25" | 21600 | 150 | 112 | 476 | 950 | 150:1 | 40% | ≤0.15 | 66 | -40～+80 | Yes | 251 kg |
Matched 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.
