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.
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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.
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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.
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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.
