How to Calculate Torque Needed for Gear Drive UPDATED
How to Calculate Torque Needed for Gear Drive
How to calculate gearbox output torque ?( gearbox output torque calculation formula)
SDT Manual customers usually want to know how to calculate gearbox torque when they select industrial gear reducer models by equipment bodily working condition, they always have the following problems: How to calculate industrial gearbox torque? how to match industrial speed reducer with motor power? specially for worm drive gearbox, helical gear motor and cycloidal gear reducer, the output torque can be transmitted continuously through the output shaft of the gearbox, with the gear unit of measurement operated under a service factor (f.s.) = 1.0. the output torque is one of the well-nigh important technical parameters to motor and gearbox calculations, please contact us if you lot need gearbox torque adding formula pdf. Hither introduce gearbox torque calculation and guidance to motor ability:
How to calculate gearbox output torque? ( gearbox output torque calculation formula)
Ratio = number of revolutions of the motor output speed/gearbox output revolutions ("Ratio" likewise known as " transmission ration")
Gearbox Output Torque Adding Formula
- You can get the gearbox output torque if yous know motor power(kW or HP, for curt), ratio(i), and service cistron(f.s.), the gearbox torque formula is as follows:
Gearbox torque calculation formula:
Gearbox Output Torque=9550×Motor Power<Kw>/(Input Speed of rated power'southward motor<R/min or RPM> / Total ratio)×Service factor 10 Gearbox manual efficiency
T2 = 9550 x P1/(n1 / i) x f.s. x η = 9550 10 P1 / n2 10 f.s. 10 η
Code Description Unit T2 Gearbox output torque N.one thousand (Kgs.1000) P1 Input Ability Kw n1 Input speed r/min (RPM) i Total ratio – n2 Output speed r/min (RPM) f.s. Service factor – η Gearbox transmission efficiency %
- Know Torque on gearbox output shaft/diameter, the output speed of gearbox and service factor, how to calculate motor power?
Motor Power(HP or Kw)=Torque (N.k) /9550×Input Speed of motor Power(Kw) / Ratio / Service factor
The industrial gearbox is a relatively precise machine, its purpose is to decrease motor speed, increment output torque.
The following state of affairs is an example of the gearbox torque adding, Client can refer to the below information:
The gear reducer output shaft is one position of output torque performance on the Gearmotor.
Question:
Gear speed reducer with 0.75Kw input power, transmission ratio 1:30, default service cistron(f.s.)[i] is 1.0, and gearbox transmission efficiency(η)[2]:100%, 4 pole Air-conditioning induction motor with 1440 rpm, How to calculate the gearbox output torque(T2)[iii]? What are the units of output torque? How heavy goods can exist lifted by this industrial Gearmotor?
Reply:
0.75Kw( geared motor power) x9550x gearbox transmission efficiency [2] x30 / input speed x service factor[1] = gearbox output torque[three].
If the Air-conditioning consecration motor is 4 Pole Air-conditioning asynchronous motor: 1380 rev/min. (also curt for : r/min; RPM):
Gearbox output torque= 0.75x9550x100%[1] x30 / 1380 x1.0[2] = 155.7 (N.Chiliad), it means this industrial gear motor tin lift 155.7 N.k (15.877 kgs.m) goods.
If you need to know the output torque of the gear reducer, only substitute it into the rotation efficiency, parameter values of motor input speed. calculate the above gearbox output torque(T2)[3], then you can refer to SDT Transmission gear motor select model table, go the suitable gearbox model.
The torque unit is Northward.yard (Newton · meters) or kilogram. meters (Kg · m).
Gear Reducer Torque = 9550 * Motor ability / Rated Power motor's input revolution*Ratio* gear reducer efficiency.
The above calculation is the torque equation.
Motor power = torque ÷ 9550 × Rated power's motor input speed /Ratio /service factor.
Here useful converted relationship to Output torque'south unit of measurement :
| 100 N.m = 10.1972 Kg.m |
| 100 N.m = 885.07457 9349 Ibs in |
| 100N.m = 885.07458 ibf.in |
| 100 North/yard = 0.5710147 ib/in |
[one] Service factor(f.south.):
The service gene is also chosen the using factor or rubber gene; particularly for users who select the gearbox, the gearbox's use cistron should be adamant in combination with other factors like working atmospheric condition and driven machinery. (more often than not> 1.0, information technology ways gear reducer capacity> the motor capacity). Ensure that it has a margin to the gearbox rated mechanical free energy and thermal free energy.
[2] Gearbox manual efficiency(η):
The definition of gearbox manual efficiency: refers to the ratio of the output ability (or output torque) to the rated input power (or input torque multiplied by the transmission ratio) when the rated input speed reaches the rated input power (or input torque). The efficiency of the gearbox is determined in part by the gear teeth, the rolling-contact bearing friction, and the shaft seal friction.Information technology can be measured on a dedicated test bench, and the methods include the loss power method and the direct ability measurement method. Different gear arrangement gearbox with vary transmission efficiency:
Single-phase planetary gear:97% , 2-stage planetary gear:94%, iii-stage planetary gear: 91%.
1 stage Archimedes worm gearbox: 85%, two stages Archimedes worm gearbox:72%.
One stage helical gear unit: 95%, 2-stage helical gear unit of measurement:90%.
[3] Gearbox output torque(T2):
Gearbox output torque refers to the actual working output torque. afterwards the user calculates gearbox output torque, according to the SDT Transmission catalogue, not but the gearbox rated output torque exceed than actual working output torque, just as well consider the overload capacity of the drive motor and the required maximum operating torque in practice.
Theoretically, the required maximum working torque must be less than the gearbox rated output torque. in particular, some tough working conditions must strictly abide by this benchmark.
Do you lot have more than queries if considering service factor, gearbox manual efficiency, etc? chat to SDT Transmission online, in order to get a quick reply, y'all as well can make full in the tabular array.
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How to Calculate Torque Needed for Gear Drive UPDATED
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