Worm gear calculation

  • #1
Dear all,
I am trying to build single axis solar tracker using worm gear, I need guide line for calculation of worm gear & stepper motor .he are some relation i taken, But i wanted whether its correct & need to explain with example

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

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

worm gear relation part:


if torque(high) gear ratio(high) speed o/p(LOW) vice versa

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

In case of motor i consider the motor as
https://www.anaheimautomation.com/products/stepper/stepper-motor-item.php?sID=24&pt=i&tID=75&cID=19

how can use these sample for calculation. can some help me out here.
 

Answers and Replies

  • #2
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Thanks for the post! This is an automated courtesy bump. Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post?
 

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