helical gear motor choice

helical gear motor choice ought firstly decide the coming technological parameters: daily amount of hours worked; hourly amount of beginnings and blocks; every hour functioning cycle; dependableness demands; work machine torque T machine; output speed n out; payload case; ambient temperature ; the locate cooling circumstances; reducer generally is founded on the continual torque, beginnings and stops occasional and room temperature aim. The permitted output torque T by the coming pattern to ascertain: T = T X fB apply coefficient T —- the slowing motor output torque fB —- geared motor applying the coefficient of transmitting than ii = n into / n the motor force P (kw) P = T a * n out / 9550 * η output torque T (Nm) T a = 9550 * P * η / n out wherever: n into the – input speed η – reducer transmitting efficiency in the choice of geared motors, depending on the circumstances, must likewise cope with the coming standards: 1, T a ≥ T 2, T = of fB entire * T work machine character: fB absolute – amount exercise element fB full = fB * fB1 * KR * KW fB – loading feature coefficient, the KR – the reliableness coefficient fB1 – environmental temperature coefficient; KW – functioning cycle coefficient firstly decided to be imported the reducer or domestic reducer, at present, regardless imported or domestically made most of the makers get their personal naming criteria, and so it's best to get a reducer samplings, grounded on the sampling choice. Nevertheless, we must offer the coming data. Reducer with what equipment, ready to ascertain the factor of safety SF (SF = reducer ranked power to bring down motor power), installed in the form (orthogonal axis, parallel shaft, output hollow shaft key output hollow shaft interlocking plate, etc.). motor power, serial (4P, 6P or 8P motor) 3. reducer temperature of the environing surroundings (conclusion reducer thermic power checking over) 4. gearhead output shaft radial and axial force checking over.

Asked to allow the axial and radial forces reducer torque method: speeding ratio the = motor output revolutions ÷ reducer output revolutions ("ratio" as well known as "transmitting ratio")

1. Recognize the motor power and speeding ratio and coefficient searching reducer torque coming method: reducer torque × speeding ratio x = 9550 × motor power ÷ motor power input revolutions applying the coefficient

2. Recognize the torque and speeding reducer output rotations and apply of coefficients asked to look for reducer with motor power the coming pattern: motor power = torque ÷ 9550 × motor power input speeding ÷ speed ratio ÷ applying the coefficient