The geared stepper motor can achieve the effect of reducing the speed and increasing the output torque through the built-in gear reduction mechanism. This reduction ratio can be adjusted according to different application requirements to provide the required force and control accuracy. The structure of the geared stepper motor includes a motor body, a reducer and an encoder, in which the reducer achieves the deceleration effect on the motor body through the engagement of gears, and the encoder is used to feedback the rotation of the motor and provide accurate position and speed information.

1.Accurate position control: The stepper motor determines the angle of shaft rotation according to the number of input pulses to achieve accurate position control.

‌2.Stepless speed regulation: By changing the frequency of the output pulse, the rotation speed of the shaft can be controlled to achieve stepless speed regulation.

‌3.Forward/reverse rotation, emergency stop and locking function: By changing the polarity, the shaft can be controlled to rotate forward or reverse, and the torque output can still be maintained when the motor is locked.

‌4.High-precision position control under low speed conditions‌: Even under low-frequency pulse input, the motor shaft can still rotate at a very low speed, without relying on the gearbox to adjust the transmission, avoiding power loss and angular position deviation.

‌5.Longer service life‌: Stepper motors do not need to adjust the phase through brushes and commutators like ordinary DC motors, reducing friction and thus increasing the service life of the motor.

‌6.Advantages of gearboxes‌: including reducing speed, increasing output torque, compact structure, small footprint, high transmission efficiency, precise speed ratio, reducing load inertia while decelerating, and providing more accurate timing than chain systems, less friction loss and less noise.

‌1.Optimize the use of motors‌:

Using the semi-current function of the stepper motor, when the motor is in a stopped state, the driver can automatically switch to the semi-current state, reducing the current in the winding, thereby reducing power consumption‌.

When the motor stops, turn off the motor enable, and the driver can turn off the power output to the motor winding, further reducing power consumption‌.

2.Choose the right drive: Consider the energy efficiency of the entire system and choose the right drive. For example, if the system has requirements for cycle time or output, it may be necessary to weigh the energy efficiency of a direct-drive torque motor against the energy efficiency of a stepper motor and choose the drive that best suits the system requirements. Using a high-efficiency reducer with a stepper motor, such as a helical-spiral reducer with an energy efficiency of 90% to 95%, can achieve high energy efficiency. 

3.Reasonable adjustment of motor speed: By adjusting the speed of the stepper motor, accurate positioning and trajectory control can be achieved, which is crucial for precision machining, medical equipment, and automation equipment in the manufacturing industry. Reasonable adjustment of the speed of the stepper motor helps improve the efficiency and performance of the equipment and optimize the workflow, which is of great significance to modern industrial production and automated manufacturing systems.

4.Precautions for installing a geared stepper motor 

1.Installation plane: The motor can be freely installed upward, downward, or horizontally, but should be installed on a smooth metal plate with good vibration resistance and good heat conduction. There is a mounting boss on the motor mounting plane for installation and positioning. The tolerance of this boss is h8.

2.Motor output shaft: The tolerance of the motor is h7. The motor shaft can be milled flat. The load connection device can be fixed on the milled flat surface with a solid screw. The fixing screw should be at right angles to the milled flat surface, otherwise the screw will loosen when the motor rotates. Pay special attention not to apply a radial load exceeding the allowable value on the motor output shaft.

3.Motor frame size: If there are special requirements for radial load, the manufacturer should be contacted. At the same time, excessive axial force should be avoided during use to avoid seriously affecting the life of the motor. The allowable axial force of the motor is generally the weight of the motor itself.

4.Motor brake: The electromagnetic brake of a motor with an electromagnetic brake will keep the motor in the stopped position when the power is off, but the electromagnetic brake should never be used for motor braking and safety braking.

5.Oil and water maintenance: Stepper motors are not completely waterproof or oil-proof, so they should not be placed or used in water or oil-invaded environments. If the stepper motor is connected to a reduction gear, an oil seal should be added to prevent the oil from the reduction gear from entering the stepper motor. Do not immerse the motor cable in oil or water.

6.Cable protection: Ensure that the cable is not subjected to torque or vertical load due to external bending forces or its own weight, especially at the cable outlet or connection. In the case of stepper motor movement, the cable should be firmly fixed to a stationary part and should be extended with an additional cable installed in the cable support to reduce bending stress.

7.Shaft end load: Ensure that the radial and axial loads applied to the stepper motor shaft are controlled within the specified values ​​for each type. It is best to use a flexible coupling to keep the radial load below the allowable value.

8.Avoid direct impact: When installing/removing the coupling component to the stepper motor shaft end, do not hit the shaft end directly with a hammer to avoid damaging the motor.