The next headings consist of information and facts on important factors for variety and accurate utilization of gearbox.
For unique data to the gearbox range,see the pertinent chapters.
one.0 OUTPUT TORQUE
one.one Rated output torque
Mn2 [Nm]
The torque that may be transmitted continuously by means of the output shaft, using the gear unit operated below a service factor fs = 1.
one.two Demanded torque
Mr2 [Nm]
The torque demand based on application requirement. It really is suggested for being equal to or less than torque Mn2 the gearbox underneath examine is rated for.
1.3 Calculated torque
Mc2 [Nm]
Computational torque worth to be utilized when picking the gearbox.
It can be calculated considering the necessary torque Mr2 and service component fs, as per the connection right here just after:Mc2 = Mr2 ?¡è fs ?¨¹ Mn2
2.0 Power
2.1 Rated input power
Pn1 [kW]
The parameter might be found inside the gearbox rating charts and represents the KW that may be securely transmitted for the gearbox, based mostly on input pace n1 and support issue fs= one.
two.2 Rated output energy
Pn2 [kW]
This worth could be the electrical power transmitted at gearbox output. it could be calculated with the following formulas:
Pn2 = Pn1 ?¡è |?d
Pn2= Mn2*n2/9550
three.0 EFFICIENCY
Efficiency is often a parameter which features a big influence over the sizing of certain applications, and mainly is determined by gear pair designelements. The mesh information table on webpage 9 displays dynamic efficiency (n1=1400)and static efficiency values.
Recall that these values are only achieved after the unit continues to be run in and is in the operating temperature.
three.one Dynamic efficiency
[|?d]
The dynamic efficiency could be the connection 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 on the gearbox. Whilst that is normally not sizeable component for helical gears, it might be alternatively crucial when choosing worm gearmotors working underneath intermittent duty.
4.0 Support Factor
The support factor (fs ) is determined by the working situations the gearbox is subjected on the parameters that must be taken into consideration to pick one of the most adequate servies issue the right way comprise:
1. type of load of your operated machine : A – B – C
2. length of day-to-day working time: hours/day(?¡Â)
three. start-up frequency: starts/hour (*)
Variety of LOAD: A – uniform,fa?¨¹0.3
B – reasonable shocks, fa?¨¹3
C – hefty shocks, fa?¨¹10
fa=Je/Jm
–Je(kgm2) moment of the external inertia diminished with the drive shaft
–Jm(kgm2) moment of inertia of motor
–If fa>10 please make contact with our Technical Service
A -Screw feeders for light elements, supporters, assembly lines, conveyor belts for light elements, smaller mixers, lifts, cleansing machines, fillers, handle machines.
B -Winding units, woodworking machine feeders, products lifts, balancers,threading machines, medium mixers, conveyor belts for heavy resources,winches, sliding doors, fertilizer scrapers, packing machines, concrete mixers, crane mechanisms, milling cutters, folding machines, gear pumps.
C -Mixers for hefty products, shears, presses, centrifuges, rotating supports, winches and lifts for hefty elements, grinding lathes, stone mills, bucket elevators, drilling machines, hammer mills, cam presses, folding machines, turntables, tumbling barrels, vibrators, shredders.