Precision medical equipment field: intelligent insulin gearbox pump, intelligent massage shoe gearbox, minimally invasive straight-line cutting stapler gearbox, intelligent infusion system gearbox, intelligent myopia prevention pen gearbox, self setting knife gearbox (Suke pump knife), double easy dragon claw hand massager gear gearbox, orthopedic surgery wound cleaning pump gearbox, etc. can use micro reduction motor, micro DC Gear motor.
The advantage of DC motor is to convert the input voltage signal into the angle of the shaft. The motor with output of moving or angular speed can carry a certain load and act as an actuator in the automatic control system. This paper focuses on the basic principle and use points of DC motor. DC deceleration. Different from other kinds of motors, the motor has high locked rotor torque, low locked rotor current and can work in locked rotor state in a short time. Because of this characteristic, it can be used to load the motor under test in the measurement system. Because of the low speed of DC motor, when it is connected with the motor under test as a load, a reducer is needed. Use. It is a DC motor. Its biggest feature is that the rotor rotates immediately when there is control voltage and stops immediately when there is no control voltage. The direction and speed of the shaft are determined by the direction and magnitude of the control voltage. 1. The basic structure of DC motor the traditional DC motor is a common DC motor with small capacity, which has two types: separately excited type and permanent magnet type. Its structure is basically the same as the common DC motor. The rotor of cup-shaped armature DC motor is made of non-magnetic material into hollow cup-shaped cylinder. The rotor is light, so the moment of inertia is small and the response is fast. The rotor rotates between the inner and outer stators made of soft magnetic materials. The air gap is large. Control conditions of DC reduction motor. Due to the advantages of small inertia, large output torque, simple control, good dynamic response and so on, DC motor has developed rapidly and has a broad application prospect in high performance and high precision. The field of DC deceleration drive will gradually replace the traditional DC deceleration system.
However, torque ripple still exists in DC motor, which can not achieve more position control and higher performance speed control. The commutation of phase current is one of the main causes of torque ripple. In the AC DC deceleration system with non commutating phase current feedback, the commutation torque ripple at low speed can be controlled, but for high speed. DC motor is the same as other kinds of motors, and the working principle of DC motor is the same. It is based on electromagnetic force and electromagnetic induction. DC motor is characterized by soft mechanical characteristics and wide speed range. It provides power in a constant way. It has a lower output speed and a higher output speed. It has the advantages of large torque supply and good overload performance. Functions: to improve the speed of the system by modifying the control object of the inner loop; to suppress the interference in the current loop in time; to limit the maximum current and ensure the safe operation of the system. The function of velocity loop is to enhance the system anti-jamming. Capacity of load disturbance. Therefore, in order to design a high-performance DC motor, it is necessary to take appropriate control strategies according to the specific circumstances of each ring. With the development of microelectronics and microprocessor technology. With the development of control technology, DC deceleration technology has rapidly developed from analog to digital stage.
Functions: to improve the speed of the system by modifying the control object of the inner loop; to suppress the interference in the current loop in time; to limit the maximum current and ensure the safe operation of the system. The function of the velocity loop is to enhance the system anti-jamming. Capacity of load disturbance. Therefore, in order to design a high-performance DC motor, it is necessary to take appropriate control strategies according to the specific circumstances of each ring. With the development of microelectronics and microprocessor technology. With the development of control technology, DC deceleration technology has rapidly developed from analog to digital stage. In the intermittent mode of material supply, such as in the intermittent bag making packaging machine, before, the supply and delivery of packaging film were mostly used. The intermittently pulling way of crank connecting rod mechanism is not only complicated in structure, but also difficult in adjustment. If the puller is driven by a DC motor, the distance of each operation of the DC motor can be set in advance in the controller. The running time and pause time, using the excellent acceleration and positioning performance of DC motor, can accurately control the length of the film. The speeder has no required reduction ratio and can be customized.
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