The working principle of geared stepper motors is based on the basic working mechanism of stepper motors and combined with the transmission function of gearboxes. A stepper motor is an electric motor that converts electrical pulse signals into angular displacement or linear displacement. For each input pulse signal, the rotor rotates a specific angle or moves forward one step. The output displacement is proportional to the number of input pulses, and the speed is proportional to the pulse frequency. The gearbox amplifies the output torque of the stepper motor through its internal gear transmission system, and achieves precise speed and position control through the meshing of gears. The meshing of gears enables the motor to provide higher torque when running at low speeds, and precise position control can be achieved by controlling the ratio and meshing mode of the gears.
17HS19-1684S-PG5
2.Specific features of geared stepper motors
Provide high torque: It can be driven even under large inertial loads, suitable for applications that require high torque output.
Improve positioning accuracy: It is not easily affected by load torque, which can improve positioning accuracy and prevent motor failure.
Compact structure: It occupies a small area and is suitable for installation environments with limited space. Multiple functions: such as acceleration, deceleration, change of transmission direction and torque, etc., realize multiple functions through the gearbox.
3.Principles of setting parameters for geared stepper motors
1.Matching principle: According to the model and characteristics of the stepper motor used, accurately input the corresponding motor parameters, such as step angle, number of phases, rated current, etc., to ensure a good match between the controller and the motor.
2.Balance optimization principle: When setting parameters such as subdivision and current, it is necessary to take into account the motor's motion accuracy, speed response, torque output and heat dissipation capacity to achieve a balanced optimization of performance and life.
3.Dynamic adaptation principle: Reasonably configure the acceleration and deceleration curve to reduce the impact and vibration when the motor starts and stops, and improve the smoothness and stability of the system.
4.Safety protection principle: Enable and reasonably set the function thresholds such as overcurrent protection and overheating protection. When the motor runs abnormally, the protection mechanism can be triggered in time to avoid hardware damage and system failure.
5.Principle of practical verification: The theoretically optimal parameter setting needs to be verified and fine-tuned through actual operation tests, observing the operating effect of the motor under different working conditions, and continuously optimizing various parameters until the optimal state is reached in combination with specific application requirements.
4.Measures to improve the efficiency of gear stepper motors
1.First of all, optimization design is the key to improving the efficiency of gear stepper motors. This includes precision gear design, such as using helical gears or spiral bevel gears to reduce impact and vibration during meshing; optimizing gear parameters (such as modulus, pressure angle, displacement coefficient, etc.) to achieve higher contact accuracy and load distribution uniformity; using high-precision processing technology to ensure that the gears have extremely high dimensional accuracy and surface roughness, reduce sliding friction, and improve meshing efficiency.
2.Secondly, selecting high-performance materials is also an important means to improve efficiency. Choosing high-strength, wear-resistant and fatigue-resistant steel or alloy materials to manufacture gears can withstand greater loads and less wear, which is conducive to improving the service life of gears and transmission efficiency. In specific occasions, such as electric vehicles, the use of non-metallic materials such as carbon fiber composites and ceramics can further reduce the friction coefficient and improve transmission efficiency.
3.In addition, improving lubrication conditions is also an effective way to improve the efficiency of gear stepper motors. Using high-quality lubricants with good extreme pressure anti-wear performance, oxidation stability and low-temperature fluidity can reduce friction between gears, improve gear transmission efficiency and extend its service life. Adopt efficient lubrication methods, such as oil injection lubrication, splash lubrication or forced circulation lubrication, to ensure that the gears are always in a good lubrication state and reduce energy loss caused by dry friction.
4.Finally, the use of advanced manufacturing processes is also the key to improving efficiency. Through heat treatment processes such as carburizing, quenching, and nitriding, the surface hardness and wear resistance of the gears are enhanced, and the wear during operation is reduced; at the same time, surface strengthening technologies such as laser cladding, electroplating, and shot peening are used to improve the fatigue resistance and load-bearing capacity of the gear tooth surface, thereby improving the overall efficiency of the gear transmission system.