The next headings have info on necessary factors for choice and proper utilization of gearbox.
For certain data around the gearbox array,see the related chapters.
one.0 OUTPUT TORQUE
1.1 Rated output torque
Mn2 [Nm]
The torque that can be transmitted continuously through the output shaft, with the gear unit operated beneath a services element fs = 1.
one.two Required torque
Mr2 [Nm]
The torque demand primarily based on application necessity. It is proposed to be equal to or less than torque Mn2 the gearbox beneath review is rated for.
one.3 Calculated torque
Mc2 [Nm]
Computational torque value to become applied when selecting the gearbox.
It really is calculated looking at the needed torque Mr2 and service component fs, as per the connection right here immediately after:Mc2 = Mr2 ?¡è fs ?¨¹ Mn2
two.0 Electrical power
two.1 Rated input energy
Pn1 [kW]
The parameter can be identified within the gearbox rating charts and represents the KW that could be securely transmitted on the gearbox, primarily based on input speed n1 and services aspect fs= one.
two.two Rated output power
Pn2 [kW]
This worth would be the electrical power transmitted at gearbox output. it can be calculated with all the following formulas:
Pn2 = Pn1 ?¡è |?d
Pn2= Mn2*n2/9550
three.0 EFFICIENCY
Efficiency can be a parameter which has a big influence around the sizing of particular applications, and in essence is determined by gear pair designelements. The mesh information table on web page 9 displays dynamic efficiency (n1=1400)and static efficiency values.
Remember that these values are only accomplished following the unit is run in and it is with the operating temperature.
three.1 Dynamic efficiency
[|?d]
The dynamic efficiency is the relationship of power delivered at output shaft P2 to energy utilized at input shaft P1:
|?d =P2/P1
3.2 Static efficiency[|?s]
Efficiency obtained at start-up from the gearbox. While that is generally not substantial component for helical gears, it may be rather vital when choosing worm gearmotors working under intermittent duty.
4.0 Service Factor
The services issue (fs ) will depend on the operating problems the gearbox is subjected on the parameters that should be taken into consideration to select the most ample servies aspect effectively comprise:
one. type of load from the operated machine : A – B – C
two. length of day by day operating time: hours/day(?¡Â)
three. start-up frequency: starts/hour (*)
Variety of LOAD: A – uniform,fa?¨¹0.3
B – moderate shocks, fa?¨¹3
C – hefty shocks, fa?¨¹10
fa=Je/Jm
–Je(kgm2) moment on the external inertia lowered at 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 components, fans, assembly lines, conveyor belts for light resources, compact mixers, lifts, cleaning machines, fillers, management machines.
B -Winding devices, woodworking machine feeders, products lifts, balancers,threading machines, medium mixers, conveyor belts for heavy products,winches, sliding doors, fertilizer scrapers, packing machines, concrete mixers, crane mechanisms, milling cutters, folding machines, gear pumps.
C -Mixers for heavy materials, shears, presses, centrifuges, rotating supports, winches and lifts for heavy components, grinding lathes, stone mills, bucket elevators, drilling machines, hammer mills, cam presses, folding machines, turntables, tumbling barrels, vibrators, shredders.