What are the characteristics of micro gearboxes and harmonic reducers?
The typical characteristics of harmonic micro gearboxes are high precision, high reliability, large torque, and large reduction ratios, but they have high processing difficulty, complex processing processes, and very fine requirements for heat treatment, finishing, and nitriding processes. Micro gearbox motors usually adopt the form of waveform generators, rigid wheel fixation, and soft wheel output. The waveform generator is a thin-walled bearing part embedded in the outer part of an elliptical cam.
Release time:
2022-07-11 16:07
Micro GearboxMainly used to provide high torque output, which can reduce speed. The lower the speed, the greater the torque. Different types of reducers will be used for reducer applications. The following details the characteristics of harmonic reducers from Tianfu Micro Motor.
The typical characteristics of harmonic micro gearboxes are high precision, high reliability, large torque, and large reduction ratio, but they have high processing difficulty, complex processing processes, and very fine requirements for heat treatment, finishing, and nitrogen treatment processes. Micro gearbox motors usually adopt the form of waveform generators, rigid wheel fixation, and soft wheel output. The waveform generator is a thin-walled bearing part embedded in the outer part of an elliptical cam. The inner wheel of the bearing is fixed on the cam, and the outer wheel is elastically deformed on the input shaft.
The soft wheel is a metal elastomer with a thin-walled cup shape. There is a gear on the outer opening. The bottom of the soft wheel is called the diaphragm, which is usually mounted on the output shaft; the new wheel is a rigid annular component. The inner peripheral gear has two more teeth than the soft wheel and is usually fixed to the housing. The wave generator causes the elastic deformation of the soft wheel to be elliptical. The long axis part of the ellipse fully meshes with the short axis part, and the two gear teeth are in a separated state, causing the rigid wheel fixed wave generator to rotate clockwise, the flexible wheel to produce elastic deformation, the rigid wheel teeth to rotate 180° clockwise, and the flexible wheel to rotate one tooth counterclockwise. The flexible wheel rotates one full turn, but since the number of teeth on the flexible wheel is two less than that of the rigid wheel, the counterclockwise movement of the two gear teeth is usually regarded as output.
Micro GearboxCharacteristics of Harmonic Reducers.
1. The reduction ratio of the reducer can achieve a high reduction ratio of 1:30 to 1:320 in a single-stage coaxial.
2. Unlike ordinary gear meshing, the tooth gap is extremely small, which is an indispensable element in the control field.
3. The precision of the micro gearbox is high, while multiple gears mesh simultaneously, and there are two 180-degree symmetrical gear engagements. The distance error between gears and the cumulative pitch error have a relatively average effect on rotational precision, achieving a very high level of positional and rotational precision.
4. The number of parts in the three basic components is very few, installation is simple, achieving a high reduction ratio, and all are coaxial, so the kit installation is simple and the shape is simple.
5. Compared with previous gear devices, the micro gearbox is small and lightweight, with a volume of 1/3 and a weight of 1/2, but can achieve the same torque capacity and reduction ratio, realizing miniaturization and lightweight.
6. The flexible wheel material of the micro gearbox has high torque capacity and uses special steel with high fatigue strength. Unlike ordinary transmission devices, the number of meshing teeth accounts for about 30% of the total number of teeth, and it is face contact, so the pressure on each gear is smaller, allowing for high torque capacity.
7. The sliding part of the efficient gear meshing is very small, reducing power loss caused by friction. Therefore, it can maintain high efficiency, achieving miniaturization of the driving motor while obtaining a high reduction ratio.
8. Low noise, the meshing speed of the gear teeth is low, and the motion power is balanced, so the operation is quiet with minimal vibration.
9. Widely used in robotic joints, robots, bionic robots, collaborative robots, aerospace rudders, CNC machine tools, optical equipment, telescopes, aerospace, metal machine tools, medical equipment, instruments, testing equipment, exoskeletons, industrial automation, etc.
The above isMicro Gearboxthe characteristics of harmonic reducers. Please continue to pay attention to information about micro DC motors.
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Introduction to Micro DC Gear Motors
Introduction to Micro DC Gear Motors Micro DC gear motors are a miniaturized motor system, typically consisting of a DC motor and a gearbox. Here are some related introductions to micro DC gear motors: DC Motor Section: Working Principle: The DC motor generates current by moving a conductive coil in a magnetic field, thus producing electromagnetic force to drive the motor's rotation. Structure: Micro DC motors usually adopt a separate structure, including an armature (rotating part) and an electromagnet (stator part). Types: Common types of DC motors include brushed DC motors and brushless DC motors. Brushed DC motors use brushes to connect to the armature, while brushless DC motors control current through an electronic speed controller, eliminating the need for brushes. Gearbox Section: Function: The gearbox is used to slow down the motor's output speed while increasing torque. This is crucial for applications requiring higher torque and lower speeds, such as robotic arms and camera gimbals. Structure: Gearboxes typically consist of gears that achieve the reduction ratio through different gear combinations. The reduction ratio is the ratio of input speed to output speed. Types: Common types of gearboxes include planetary gears, worm gears, and helical gears. Different types of gearboxes are suitable for different application scenarios. Applications: Micro DC gear motors are widely used in various fields, including consumer electronics (such as cameras and printers), medical devices, robotics, and automotive electronics. In these applications, micro DC gear motors are typically used to control precise movements, provide sufficient torque, and achieve efficient performance in limited spaces. Control and Drive: Micro DC gear motors usually require corresponding electronic speed controllers or controllers to precisely control rotation speed and direction. The control system can adjust the motor's output according to application needs, achieving precise position control and speed regulation. Performance Parameters: The performance parameters of micro DC gear motors include rated voltage, rated speed, rated torque, efficiency, etc. These parameters are crucial for selecting and designing motor systems. In summary, micro DC gear motors have been widely applied under the trends of miniaturization, precision, and efficiency, providing reliable driving force for many electric devices and systems.
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