Low Maintenance Solar Tracker Slew Drive with High Accuracy
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 are commonly found in industrial machinery, solar tracking
systems, wind turbines, construction equipment, and other
applications where controlled and precise rotation is required.
Below are some of the key features and components of a slewing
drive:
Main Housing: The slewing drive typically consists of a sturdy,
compact housing that contains all the internal components. The
housing is designed to withstand heavy loads and environmental
conditions.
Central Axis: At the core of the slewing drive is a central axis,
often referred to as the worm gear, which serves as the pivot point
for the rotational movement.
Gear Mechanism: The primary function of the slewing drive is to
convert rotary motion into angular motion. This is achieved through
a gear mechanism, typically consisting of a worm screw and a ring
gear. The worm screw engages with the teeth on the ring gear,
allowing controlled rotation.
Drive Motor: To control the rotation of the slewing drive, an
external drive motor is usually attached. The motor provides the
necessary torque and power to rotate the load.
Bearings: High-quality bearings are crucial components of a slewing
drive. They provide support and reduce friction, enabling smooth
and efficient rotation. Some slewing drives feature multiple rows
of bearings for enhanced stability.
Seals and Lubrication: To protect the internal components from
dust, dirt, and moisture, slewing drives are equipped with seals
and gaskets. Proper lubrication is essential to reduce wear and
ensure long-term reliability.
Mounting Flange: Depending on the application, a mounting flange
may be included to attach the slewing drive securely to the
surrounding structure.
Output Gear: Some slewing drives have an output gear, which is
connected to the load that needs to be rotated. This gear can be
customized to suit the specific requirements of the application.
Slewing drives are designed to handle heavy loads and offer precise
control over rotation, making them ideal for various applications
that require controlled motion. Their versatility, durability, and
ability to support both axial and radial loads make them valuable
components in industries such as construction, renewable energy,
and manufacturing.
Features
A Slewing Drive Overview
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. They are
commonly found in industrial machinery, solar tracking systems,
wind turbines, construction equipment, and other applications where
controlled and precise rotation is required. Here is a description
of key features and components of a slewing drive:
Main Housing
The slewing drive typically consists of a sturdy, compact housing
that contains all the internal components. The housing is designed
to withstand heavy loads and environmental conditions.
Central Axis
At the core of the slewing drive is a central axis, often referred
to as the worm gear, which serves as the pivot point for the
rotational movement.
Gear Mechanism
The primary function of the slewing drive is to convert rotary
motion into angular motion. This is achieved through a gear
mechanism, typically consisting of a worm screw and a ring gear.
The worm screw engages with the teeth on the ring gear, allowing
controlled rotation.
Drive Motor
To control the rotation of the slewing drive, an external drive
motor is usually attached. The motor provides the necessary torque
and power to rotate the load.
Bearings
High-quality bearings are crucial components of a slewing drive.
They provide support and reduce friction, enabling smooth and
efficient rotation. Some slewing drives feature multiple rows of
bearings for enhanced stability.
Seals and Lubrication
To protect the internal components from dust, dirt, and moisture,
slewing drives are equipped with seals and gaskets. Proper
lubrication is essential to reduce wear and ensure long-term
reliability.
Mounting Flange
Depending on the application, a mounting flange may be included to
attach the slewing drive securely to the surrounding structure.
Output Gear
Some slewing drives have an output gear, which is connected to the
load that needs to be rotated. This gear can be customized to suit
the specific requirements of the application.
Slewing drives are designed to handle heavy loads and offer precise
control over rotation, making them ideal for various applications
that require controlled motion. Their versatility, durability, and
ability to support both axial and radial loads make them valuable
components in industries such as construction, renewable energy,
and manufacturing.
Technical Parameters
Ratios and Torques for Different Sizes of Planetary Gear Reducers
Our planetary gear reducers can provide various torque and ratio
requirements for your application. These products are highly
efficient with 40% efficiency, and the precision rate is reach up
to 0.150 or less.
The working temperature for these reducers are from -40°C to
+120°C, they are self-locking and the IP grade is up to 66. The
axial load and radial load can vary to meet your needs too.
Here are some examples of the reducers that we are offering. The
model, rated output torque, holding torque, tilting torque, axial
load, radial load, ratio, efficiency, precision, IP, working
temperature, self-locking and weight are written in the table
below.
Technical 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 |
Applications
Slewing drives are widely used in a variety of industries and
equipment, where controlled rotation, precise positioning, and
load-bearing capacity are essential. They find important
applications in solar tracking systems for orienting solar panels
and arrays towards the sun; in wind turbines to control the
orientation of the nacelle and blades; in construction machinery
such as excavators, cranes, and concrete pumps; agricultural
equipment, such as combine harvesters and irrigation systems;
conveyor systems, material loaders, and stackers; rotary tables in
manufaturing and machining processes; marine and offshore equipment
including ship cranes, offshore drilling rigs, and vessel
positioning systems; lift platforms and bucket trucks for providing
access to elevated areas; in both tidal and wave energy systems;
satellite dishes; radio and television broadcasting antennas and
surveillance camera systems; automated manufacturing processes; in
military applications including radars, missile launchers and
telescopes; amusement park rides, such as ferris wheels and
rotating platforms; and finally, astronomical observatories and
telescopes, as well as heavy mining and quarrying equipment.
These examples make it evident how versatile these drives are, and
how essential they are in all those industries and applicatons
which require precise rotation and control, for the efficient and
safe operation of machines.
