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Dual Worm Slewing Drive For Solar Tracker

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Slewing drives are mainly applied in port machinery, mining machinery, welding machinery, construction vehicles, modular vehicles, single and dual axis solar tracking systems, and small wind power systems etc.
There are mainly SE series and WEA series to meet both regular and precise tracking requirement in PV, CPV and solar thermal power tracking fields.

Quantity:
  • SE/WEA Series
  • Wanda
  • 8483409000

   Performance parameters For Dual-Worm Slewing Drive


Model

SE17-2

SE21-2

WEA17-2

WEA21-2

Rated Output Torque (MAX)KN.M

16.8

20.6

19.44

48

Tilting Moment Torque (MAX)KN.M

135.6

203

142.4

203

Static Axial Load KN

970

1598

1166

1598

Static Radial Load KN

390

640

435

640

Dynamic Axial Load (MAX)KN.M

235

385

280

385

Dynamic Radial Load KN

205

335

231

335

Holding Torque (MAX)KN.M

122.9

179.9

108.5

179.9

Gear Radio

102:1

125:1

104:1

90:1

Tracking Precision

≤0.15°

≤0.15°

≤0.13°

≤0.10°

Self-locking Gears

Yes

Yes

Yes

 Yes

Weight kg

119

161

115

205



 

1. Definition of slew drive

 

Slew drive device is a new type of rotary products, which is made of worm gear, slewing ring, shell and motor. Since the core part adopts slewing bearing, so it can bear axial force, radial force and overturning moment at the same time. Slew drive and traditional rotary products compared, it has the characteristics of simple installation, easy maintenance and saving installation space to a greater extent. This product can be widely used in heavy plate transport vehicle, container crane, truck mounted crane and high-altitude operation.

slew drive compose

2. Slew drive structure

 

Slew drive can be divided into single worm drive, double worm drive and special type rotary drive. Xuzhou Wanda slewing bearing co.,ltd could supply the slew drive in SE Seires and WEA Series.

 

SE series adopts toroidal worm structure design, multi-tooth contact, strong impact resistance, suitable for light load and low speed applications. Such as solar tracker system,Small environmental protection equipment etc..

WEA series adopts curved tooth surface structure design, which has much stronger anti-fatigue and gluing ability. It is suitable for heavy-duty and medium-speed applications. Such as Construction machinery, construction machinery etc..

 

YINGYONG 

3. Three advantages of slew drive

 

a.)Modularization

Due to the high integration of the slew drive, users do not have to purchase and process each part of the rotary device one by one. To a certain extent, it also reduces the preparation process at the beginning of production, thus greatly improving the labor productivity.


b.)Security

Worm gear transmission has the characteristics of reverse self-locking, which can realize reverse self-locking, that is, only worm can drive worm gear, but not worm gear. The safety factor of main engine and slewing equipment can be greatly improved in high-altitude operation. Compared with traditional rotary products, slew drive has the advantages of simple installation, easy maintenance and saving installation space.

 

c.)Simplify host design

Compared with the traditional gear transmission, worm gear transmission can get a relatively large reduction ratio. In some cases, it can save the reducer parts for the main engine, so as to reduce the purchase cost for customers and greatly reduce the failure rate of the main engine.

 

The above is the introduction of the slewing drive. If you have any other questions, you can communicate with us again, welcome to contact us!


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Xuzhou WanDa Slewing Bearing Co.,Ltd.
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Xuzhou WanDa Slewing Bearing Co.,Ltd.
 No.15,Huaxia Road,the 3rd Industrial Park,Tongshan District, Xuzhou, Jiangsu,China.
  +86-516-83309366     +86-516-83303986
   info@slew-bearing.com
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