Vertical VE5 Slewing Drive With Gear Ratio 37:1 Gearbox For PV Solar Tracking System
Enveloping Worm Gear Description
The enveloping slewing drive is a new type of rotary and transmission product. It is usually called slewing drive or slewing bearing, which is usually composed of double enveloping worm, gear, housing, motor and other components. Since the core components are the double enveloping worm, it can mesh with the gear more closely and to achieve multi tooth contact, thus improve the accuracy and the holding moment torque. They can simultaneously withstand axial forces, radial forces, and overturning moments. Compared with traditional rotary products, the new slewing drive features easy installation, easy maintenance and a greater degree of installation space.
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 |
Maintainance
The slewing bearing is an important component of the mechanical slewing structure. To maintain the high-efficiency operation of the machine under high load and harsh environments, the good performance of the slewing bearing is one of its important basic guarantees.
Wear and tear is one of the common failures. Therefore, in order to reduce the wear rate of the slewing bearing, it is necessary to do the corresponding lubrication work.
The slewing bearing must be regularly filled with lubricating grease according to the working environment. The slewing drive has been adequately greased at the factory. In the later stage, grease should be added or replaced according to the frequency of use. In special working environments, such as tropics, high humidity, dust, large temperature changes and continuous work, the lubrication cycle should be shortened. When adding grease to it, it should be carried out under the condition that the slewing bearing rotates slowly. When the grease overflows from the seal, it means that the filling is completed, and the overflowing grease will form a film and act as a seal.
The slewing bearing needs to be filled with new grease before and after being placed for a long time, and slowly rotate the slewing bearing to make it evenly filled.
In order to lubricate the slewing bearing, attention should not only be paid to the methods and methods, but also to the selection of the appropriate type of lubricating oil. For example, the quality of the grease is poor and aging, and the selection of the wrong lubricant will aggravate the wear of the slewing bearing.