VE7 Vertical Worm Gear Slew Drive With 24VDC Electrical Gear Motors
For Solar Trackers
Worm Gear Slewing Drive Description
A worm gear slewing drive unit is a compactly constructed unit
which consists of a slewing gear, base and worm. This unit brings
the advantages of a slewing gear and a worm into one unit.
The single axis vertical slew drives are mounted vertically, it is
specifically designed for flat single axis solar tracking systems
that require tracking towards the sun for east to west. The precise
rotation of the vertical slew drive allows the mechanism to track
perfectly. This kind of vertical slewing drive is manufactured
using the latest technology which incorporates hourglass mechanism.
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 |
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.
Customized Services
Sand will enter the equipment by extrusion, and products with poor
sealing performance will easily have sand entering. Therefore, for
harsh working conditions, such as less rain and heavy sandstorms,
our products will adopt multiple seals, and in addition to ordinary
seals, mechanical seals will be added.
In addition, in the case of low temperature and large temperature
difference between day and night, the large temperature difference
between day and night will cause the air to condense and condense
water droplets at night after being heated and expanded. In this
case, the swellability of the product is also considered in
addition to the tightness. Therefore, measures should be taken in
the design and manufacturing process to avoid rusting.
In some places, the temperature can reach minus 40 degrees Celsius
when the temperature is low, and the extreme temperature in high
temperature can reach about 50 degrees Celsius above zero (at this
time, the operating temperature of the reducer is higher). To keep
the reducer running normally, especially under severe cold
conditions, lubricity must be guaranteed. Therefore, the
lubricating oil with wide temperature technology can generally
adapt to the low temperature of minus 40 to minus 60 degrees
Celsius, and can withstand the high temperature of minus 80 degrees
Celsius or even more than 100 degrees Celsius.
Sunlight radiation can have certain effects on the product, such as
the aging of rubber. This problem can be solved by using mechanical
seals to avoid the core components being exposed to sunlight for a
long time.
