0.01° High-Resolution IP66 Solar Tracker Slewing Drive
Product Description
A slewing drive, also known as a slew drive or slew bearing drive,
is a mechanical component used in various applications to enable
the controlled rotation of a load around a central axis. These
devices provide a reliable and robust solution for controlled
motion, and are commonly found in industrial machinery, solar
tracking systems, wind turbines, construction equipment, and other
applications that require precise rotation. The slewing drive
typically consists of a sturdy, compact housing that contains all
the internal components, which are designed to withstand heavy
loads and environmental conditions. At the core of the system is
the central axis, often referred to as the worm gear, which serves
as the pivot point for the rotational movement and is connected to
an external drive motor that provides the torque and power required
to rotate the load. High quality bearings, seals, and lubrication
are integral components of the slewing drive. The bearings provide
support and reduce friction for efficient rotation, while the seals
and lubrication protect the internal components from dust, dirt,
and moisture, and ensure long-term reliability. Depending on the
application, slewing drives may include a mounting flange to
securely attach the device to the surrounding structure, and an
output gear to connect the load that requires rotation. Slewing
drives offer a variety of advantages for a wide range of
applications, with their strength and precision being two of their
main benefits. Their versatility, durability, and ability to
support both axial and radial loads make them especially valuable
in industries such as construction, renewable energy, and
manufacturing.
Technical Parameters
Planetary reducers, widely used in automated transmission systems,
are a type of mechanical device used to reduce the speed of a motor
while increasing the torque. The table above shows the rated output
torque, holding torque, tilting torque, axial load, radial load,
ratio, efficiency, precision, IP protection, working temperature,
self-locking property, and weight information for various sizes of
planetary reducers.
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 |
To sum up, the specs of the discussed planetary reducers vary
greatly depending on their size. However, most of them share
similar characteristics like a high efficiency, precision, and IP
protection, as well as a wide temperature range.
Applications
Slewing drives find applications in a wide range of industries and
equipment where controlled rotation, precise positioning, and
load-bearing capacity are essential. They are not only flexible and
robust, but also capable of providing precise positioning and
rotation of equipment and components. Common applications of
slewing drives include:
Solar Tracking Systems: Slewing drives are widely used in solar
tracking systems to orient solar panels and arrays towards the sun
throughout the day, maximizing energy capture and improving the
efficiency of solar power generation.
Wind Turbines: They are used in wind turbines to control the
orientation of the nacelle and blades, allowing the wind turbine to
efficiently harness wind energy by facing into the prevailing wind
direction.
Construction Equipment: Slewing drives are used in construction
machinery such as excavators, cranes, and concrete pumps to enable
precise control of the boom, arm, or bucket rotation.
Agricultural Machinery: Agricultural equipment, including combine
harvesters and irrigation systems, often use slewing drives to
control movement and positioning of various components.
Material Handling: Conveyor systems, material loaders, and stackers
utilize slewing drives to control the movement and positioning of
conveyor belts and other equipment.
Rotary Tables: In manufacturing and machining applications, slewing
drives are used in rotary tables to enable precise indexing and
positioning of workpieces during machining processes.
Marine and Offshore Equipment: Slewing drives are employed in ship
cranes, offshore drilling rigs, and vessel positioning systems to
control the rotation of equipment and loads.
Aerial Work Platforms: Lift platforms and bucket trucks use slewing
drives to control the movement and positioning of the work
platform, providing access to elevated areas.
Renewable Energy: In addition to wind and solar applications,
slewing drives are used in tidal and wave energy systems to control
the orientation of energy-capturing devices.
Satellite Dishes: Slewing drives enable the precise pointing and
tracking of satellite dishes to maintain communication with
orbiting satellites.
Broadcasting and Surveillance: They are used in radio and
television broadcasting antennas and surveillance camera systems to
control antenna or camera movements.
Automated Manufacturing: Slewing drives play a role in various
automated manufacturing processes where precise rotational movement
and positioning are required.
Defense and Aerospace: In military and aerospace applications, they
are used in radar systems, missile launchers, and telescopes to
control the orientations of equipment.
Entertainment Industry: Slewing drives can be found in amusement
park rides, including Ferris wheels and rotating platforms in theme
parks.
Telescopes and Observatories: Astronomical observatories and
telescopes use slewing drives for precise positioning and tracking
of celestial bodies.
Mining and Quarrying Equipment: Slewing drives are employed in
heavy mining equipment, such as bucket-wheel excavators and
stacker-reclaimers, to control the movement of components.
These examples highlight the versatility of slewing drives and
their importance in providing precise control in various industries
and applications.
