Gear Motor
Gears
motors are such type of motors which have a large reduction system. The
gearbox is pertained into the motor. This type of integral arrangement is
done in order to increase the mechanical rotational speed of the motor. But
simultaneously, this arrangement reduces the output speed.
The important feature of a
Gear
Motor is that the driven shaft and the driving shaft may be coupled
directly in it. In order to reduce the speed of such motors, some other
devices like pulley, belts, chains etc. are required. The separate use of
speed reducers has been prohibited for the purpose of reducing the speed of
a Gear motor. The term Gear motor is used to describe such a motor which has
an integrated gearbox (gear reduction unit) within the motor. The benefit of
the integrated gearbox is to enhance the mechanical rotational energy of the
motor. The other important thing is that this integrated system also reduces
the output speed of the motor.
Advantages of Gear Motor
The most prominent advantage which comes from the gears of the Gear motor
is that the direct coupling is possible for driving shaft to the driven
shaft. Another advantage of the Motor gear is that it omits the requirement
of coupling the motor to a distinct outer speed reducer. Therefore, these
Motor gears are useful in hot melt glue pump, conveyor drives, labellings
box case electors etc.
Composition of AC Gear Motor
A series of three windings along with a simple rotating section and an
composite gearbox are present in the stator section of a Gear motor. The
configuration of a DC motor is done in different ways. The DC motor has a
rotor and a permanent magnetic field stator along with a composite gearbox
within it. These DC motors may be used in different applications of torque
and in a variable speed.
Buyer's Guide
To evaluate the performance specifications of a gear motor, a buyer should
search informations regarding the:
- Shaft Speed
- Continuity of the torque
- Continuity of the current
- Continuity of the output current
Continuity of the torque means the output capability of the torque
under fixed operating conditions. Continuity of the current implies the
highest level of current which can be supplied to the motor winding without
overheating. Continuity of motor output implies the mechanical power
supplied by the output of motor.
Standard used for Gear Motor
The service factors and the load differentiations of a Gear motor should be
ensured by AGMA recommendations. For continuous operation of a Gear motor,
the lowest service factor should be 1.0 when the gear motor works with a
minimum mechanical strength service factor of 1.3.
Applications of Gear Motor
There is a wide array of applications of the Gear motors. The different
things for which gear motor is used are as follows:
- Used for packaging and labellings purpose.
- Used in case electors, box tapers, heat shrink tunnels, hot melt glue
pumps, conveyor drives and tape dispensers.
- Used for food processing industries.
- Used in weight checking machines, ice making machines, cake baking
machines, meat slicing, golf carts, meat slicing and in breading
appliances.
- Used for different transportation devices.
- Used in wheel chairs, stair lifts, golf carts and in pipe line
crawlers.
- Used in different machinery tools like drill heads, rotary table
drives and for hardness test also.
Selection of the size of Gear Motor
To take any final decision regarding the selection of the appropriate size
of a Motor gear, various factors should have to consider. These various
factors are: 1) the space available for the Motor gear, 2) the current
voltage supply, 3) the required operating speed as well as torque
requirements, 4) the duration of operation of the Motor gear. Apart from
these stated factors, other thing which must be understand is the
manufacturing/production planning by the user.
Type of Gear Motor
An Integral Gear motor is the combination/collection of a motor and a
specific gear drive. It may also be the collection of gears like a gear box.
Although, the motor of an Integral Gear motor is not fully integrated. This
is because the end bracket or the mounting flange of the motor portion is
also a part of the gear assembly. The mounting flange cannot be used
independently out from the complete gear assembly. One shortcoming is
prevailed with Integral Gear Motor, because neither the motor portion nor
the entire gear system is able of being used in large number of general
purpose applications. Normally, Integral Gear motors are used for some
specific purposes. These kind of Gear motors also have specific performance
features and physical dimensions. They also possess special physical
dimensions, casing, flange and shafting structural arrangement.
