For applications where variable speeds are essential, typically an AC motor with an Inverter or brush motors are used. Brushless DC motors are an advanced option due to their wide rate range, low temperature and maintenance-free operation. Stepper Motors offer high torque and soft low speed operation.
Speed is typically managed by manual operation on the driver or by an external change, or with an exterior 0~10 VDC. Swiftness control systems typically utilize gearheads to increase output torque. Gear types range from spur, worm or helical / hypoid depending on torque demands and budgets.
Mounting configurations differ to depending on space constraints or design of the application.
The drives are powerful and durable and feature a compact and lightweight design.
The compact design is made possible through the combination of a spur/worm gear drive with motors optimized for performance. This is achieved through the constant application of aluminum die casting technology, which ensures a high amount of rigidity for the gear and motor housing simultaneously.
Each drive is produced and tested particularly for each order and customer. A sophisticated modular system allows for an excellent diversity of types and a maximum degree of customization to customer requirements.
In both rotation directions, defined end positions are safeguarded by two position limit switches. This uncomplicated option does not just simplify the cabling, but also makes it possible to configure the finish positions quickly and easily. The high shut-off precision of the limit switches guarantees safe operation shifting forwards and backwards.
A gearmotor delivers high torque at low horsepower or low velocity. The speed specifications for these motors are normal speed and stall-rate torque. These motors make use of gears, typically assembled as a gearbox, to lessen speed, making more torque offered. Gearmotors ‘re normally used in applications that need a lot of force to go heavy objects.
More often than not, most industrial gearmotors use ac motors, typically fixed-speed motors. Nevertheless, dc motors may also be used as gearmotors … a lot of which are found in automotive applications.
Gearmotors have several advantages over other styles of motor/gear combinations. Perhaps most of all, can simplify design and Center-drive gear motor implementation by eliminating the stage of separately developing and integrating the motors with the gears, hence reducing engineering costs.
Another advantage of gearmotors can be that having the right combination of engine and gearing may prolong design life and invite for optimum power management and use.
Such problems are common when a separate engine and gear reducer are connected together and result in more engineering time and cost as well as the potential for misalignment leading to bearing failure and ultimately reduced useful life.
Advancements in gearmotor technology include the use of new specialty materials, coatings and bearings, and also improved gear tooth styles that are optimized for noise reduction, increase in strength and improved life, all of which allows for improved efficiency in smaller packages. More after the jump.
Conceptually, motors and gearboxes can be mixed and matched as had a need to greatest fit the application form, but in the end, the complete gearmotor may be the driving factor. There are a variety of motors and gearbox types which can be combined; for example, the right angle wormgear, planetary and parallel shaft gearbox can be combined with permanent magnet dc, ac induction, or brushless dc motors.