The next headings contain info on important components for assortment and proper use of gearbox.
For particular data over the gearbox assortment,see the relevant chapters.
1.0 OUTPUT TORQUE
one.1 Rated output torque
Mn2 [Nm]
The torque that will be transmitted constantly by means of the output shaft, with the gear unit operated underneath a support component fs = 1.
one.two Expected torque
Mr2 [Nm]
The torque demand based on application necessity. It truly is proposed to get equal to or less than torque Mn2 the gearbox underneath research is rated for.
one.3 Calculated torque
Mc2 [Nm]
Computational torque value to be made use of when choosing the gearbox.
It is calculated looking at the required torque Mr2 and services factor fs, as per the relationship right here soon after:Mc2 = Mr2 ?¡è fs ?¨¹ Mn2
2.0 Energy
two.one Rated input energy
Pn1 [kW]
The parameter is usually observed from the gearbox rating charts and represents the KW that may be safely transmitted to your gearbox, based mostly on input speed n1 and service issue fs= 1.
2.two Rated output energy
Pn2 [kW]
This worth could be the power transmitted at gearbox output. it might be calculated with all the following formulas:
Pn2 = Pn1 ?¡è |?d
Pn2= Mn2*n2/9550
three.0 EFFICIENCY
Efficiency is usually a parameter which includes a main influence to the sizing of certain applications, and fundamentally will depend on gear pair designelements. The mesh information table on web page 9 shows dynamic efficiency (n1=1400)and static efficiency values.
Keep in mind that these values are only achieved after the unit continues to be run in and is with the working temperature.
three.one Dynamic efficiency
[|?d]
The dynamic efficiency is definitely the relationship of power delivered at output shaft P2 to power applied at input shaft P1:
|?d =P2/P1
three.two Static efficiency[|?s]
Efficiency obtained at start-up with the gearbox. Though this is usually not important factor for helical gears, it may be as an alternative important when selecting worm gearmotors operating under intermittent duty.
four.0 Services Issue
The support aspect (fs ) relies on the operating conditions the gearbox is subjected to the parameters that must be taken into consideration to select probably the most adequate servies element appropriately comprise:
one. type of load in the operated machine : A – B – C
two. length of day-to-day working time: hours/day(?¡Â)
three. start-up frequency: starts/hour (*)
Type of LOAD: A – uniform,fa?¨¹0.3
B – reasonable shocks, fa?¨¹3
C – hefty shocks, fa?¨¹10
fa=Je/Jm
–Je(kgm2) minute from the external inertia reduced on the drive shaft
–Jm(kgm2) minute of inertia of motor
–If fa>10 please get in touch with our Technical Support
A -Screw feeders for light products, fans, assembly lines, conveyor belts for light elements, tiny mixers, lifts, cleansing machines, fillers, handle machines.
B -Winding units, woodworking machine feeders, items lifts, balancers,threading machines, medium mixers, conveyor belts for heavy supplies,winches, sliding doors, fertilizer scrapers, packing machines, concrete mixers, crane mechanisms, milling cutters, folding machines, gear pumps.
C -Mixers for heavy products, shears, presses, centrifuges, rotating supports, winches and lifts for heavy supplies, grinding lathes, stone mills, bucket elevators, drilling machines, hammer mills, cam presses, folding machines, turntables, tumbling barrels, vibrators, shredders.