Dear all,
I need basic step for calculating proper wormgear,slewdrive & motor for solar tracking application. with wormgear we can achieve +/- 75 degree,
660 minutes devide in 150 degree ;4.4 degree per minute.
Motor calculation as below
There are lot of parameter in case of worm gear which are given below as example:
These are basic equation followed usually
In order to drive 250Kw plant ; assume 15kw per row I have 16 rows with 1 column.
Worm gear has to Drive 16 rows with coupling with single column item
each panel weighs 20Kg ; 60 panel per row-> 60*20kg=1200Kg
Each row structural weight around = 700Kg
Net weight alone = 1900Kg per Row
so load on worm gear might be 1900*16=30400
https://www.anaheimautomation.com/products/stepper/stepper-motor-item.php?sID=20&pt=i&tID=75&cID=19
http://www.sunflowerenergyinc.com/Slewing_Drive_-_032511_-_REV.03.pdf
I need basic step for calculating proper wormgear,slewdrive & motor for solar tracking application. with wormgear we can achieve +/- 75 degree,
660 minutes devide in 150 degree ;4.4 degree per minute.
Motor calculation as below
- efficiency= (output Power of Worm gear/ Input Power of WormGear) = Po/Pinput
- Output power =P0=(2*pi*Outputspeed*outputtorque)/60
Output power in Kw
Output speed in rev/min
output torque in Nm
- Input power = Pinput=(2*pi*Input speed*Input torque)/60
Input power in Kw
Input speed in rev/min
Input torque in Nm
- Net Torque= Toutput+TInput+Tholding =0
There are lot of parameter in case of worm gear which are given below as example:
- 1 st Stage Ratio of Worm Gear: 1/10
- 2 nd Stage Ratio of Worm Gear:1/73
- Rated Output Speed: 0.078rpm
- Rated Output torque: 910 Nm
- output torque :1300Nm
- holding torque :10.4Knmt
- axila load : 133KN
- radial load :53KN
- o/p speed : 56.9rpm
These are basic equation followed usually
In order to drive 250Kw plant ; assume 15kw per row I have 16 rows with 1 column.
Worm gear has to Drive 16 rows with coupling with single column item
each panel weighs 20Kg ; 60 panel per row-> 60*20kg=1200Kg
Each row structural weight around = 700Kg
Net weight alone = 1900Kg per Row
so load on worm gear might be 1900*16=30400
- Basic infomation collected while selecting worm gear as below
- if higher torque; higher the gear ratio; speed @ output will be low & vice versa
- if Input gear has low teeth than output speed will be lower @ output.
- larger the Movement of interia the greater torque requied to accelerate & deaccelerate
- based on above value how can calculate worm gear & motor spect
- how to determine radial load & axial load .
- In order to run 4.4 degree per minute. what must be gear ratio of worm gear choosen with their speed.
- How should i know rpm @ which output of wormgear must be run.
https://www.anaheimautomation.com/products/stepper/stepper-motor-item.php?sID=20&pt=i&tID=75&cID=19
http://www.sunflowerenergyinc.com/Slewing_Drive_-_032511_-_REV.03.pdf