What should be paid attention to when selecting geared motors

Update:29-12-2020
Summary:

Choose a reduction ratio close to the ideal: Reduction […]

Choose a reduction ratio close to the ideal:

Reduction ratio=Servo motor speed / reducer output shaft speed; torque calculation: for the life of the special-shaped reducer, torque calculation is very important, and pay attention to the maximum torque value (TP) of acceleration, whether it exceeds the maximum of the reducer Load torque.

The selection of the general special-shaped reducer includes the steps of proposing the original premise, selecting the type, and determining the specifications. In comparison, the type selection is relatively simple, and the correct provision of the working conditions of the speed reducer, and the grasp of the design, manufacturing and use characteristics of the speed reducer are the hub for the accurate and fair selection of the specifications of the general reducer. The selection of degree specifications should satisfy the premises of strength, thermal balance, and radial load bearing on the shaft extension.

The biggest difference between the design and selection method of the general reducer and the special reducer according to mechanical power or torque selection (strength check) is that the former is applicable to various industries, but the reduction can only be designed according to a specific working condition. When selecting, users need to consider different correction coefficients according to their own requirements. The factory should mark the nameplate according to the actual power of the electric idea (not the rated power rate of the reducer); the latter is designed according to the user's special premise, and the coefficient should be considered , The design has generally been considered, as long as the power used is less than the rated power of the reducer when selecting, the method is relatively simple.

Type selection:
Geared motors are available in cage type and wire wound type. Cage type geared motors are simple in structure, easy to maintain, and low in price, but they have poor starting performance. Generally, they can be selected for production machinery that starts at no load or light load; the starting torque of wire-wound geared motors is arrogant and the starting current is small. The structure is complex, starting and maintenance is troublesome, and it is only used for occasions that require large starting torque, such as lifting equipment, and can also be used for mechanical equipment that requires proper speed regulation.