VE7 Vertical Slew Drive, Envelope Worm Gearbox For Sun Tracking
Systems
Envelope Worm Gear Slew Drive Description
Slewing drive has reverse self-locking feature 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 slewing products, slewing drive
gearbox is easy to install, easy to maintain, and saves
considerable installation space. The advantages are as follows:
1. High backholding torque to improve the solar tracking system's
safety
2. 360 degree rotating range
3. Enveloping worm drive inside
4. Multi tooth contact to ensure high load
5. Self-locking function
Technical Sheet Of VE Model Slewing Drive
| Model | Ratio | Rated Output Torque(N.m) | Tilting Torque(N.m) | Holding Torque(N.m) | Axial Load(kN) | Radial Load(kN) | Efficiency | Self-locking | Weight(kg) |
| 3" | 31:1 | 600 | 1500 | 1800 | 22 | 15 | 40% | Yes | 12 |
| 5" | 37:1 | 800 | 5000 | 9200 | 16 | 27 | 40% | Yes | 18 |
| 7" | 57:1 | 1750 | 7000 | 13200 | 34 | 58 | 40% | Yes | 32 |
| 8" | 51:1 | 2250 | 11200 | 20400 | 50 | 80 | 40% | Yes | 28 |
| 9" | 61:1 | 2250 | 16000 | 30800 | 60 | 130 | 40% | Yes | 52 |
| 12" | 78:1 | 4300 | 25000 | 40560 | 77 | 190 | 40% | Yes | 65 |
| 14" | 85:1 | 5600 | 48000 | 44200 | 110 | 230 | 40% | Yes | 88 |
| 17" | 102:1 | 6750 | 67000 | 53040 | 142 | 390 | 40% | Yes | 135 |
| 21" | 125:1 | 16000 | 89000 | 65000 | 337 | 640 | 40% | Yes | 192 |
| 25" | 150:1 | 21450 | 112000 | 89000 | 476 | 950 | 40% | Yes | 251 |
Customized Services
1. Special design based on different applications and projects
2. Different types of motors could be matched, such as hydraulic
motors, stepper motors, electrical motors etc.
3. Different colors are available based on RAL code; our standard
color is RAL 9006.
Glossary of Key Paramaters
Tilting Moment Torque: This torque is the gravity load multiplied
by distance between the position of load and the center of slewing
bearing. If the actual torque is greater than the rated tilting
moment torque, slewing drive will be overturned.
Radial load: The load vertical to the axis of slewing bearing
Axial load: The load parallel to the axis of slewing bearing
Holding torque: It is the reverse torque.When the drive is rotating
reversely, and parts are not damaged,The maximum torque achieved is
called holding torque, it is also seen as broken torque.
Self-locking: Only when there is load, the slewing drive is not
able to reverse rotate and thus called self-locking.
