How to Evaluate the Gear Defects in the Planetary Gearbox?

Planetary gearbox is a common drive device, planetary gearbox can be used in various types of motors such as DC motor, AC motor, stepping motor and servo motor. For example, power tools, machine tools equipment, workbench, automated production lines, medical equipment, security monitoring equipment and so on, can be used planetary gearbox for transmission. In the field of machining, the planetary gearbox can not only reduce the volume of the mechanical equipment, but also improve the transmission efficiency and torque output capacity of the equipment. In the field of automatic control, the planetary gearbox can also realize precise position control and regression of axial reference points.

It consists of three parts: a solar wheel, a planetary wheel, and an inner tooth ring. The solar wheel is the central axis, the inner tooth ring is the shell, and the planetary wheel rotates around the solar wheel. The transmission between the solar wheel and the planetary wheel is achieved by the engagement between the planetary wheel and the inner tooth ring. Planetary gearbox is widely used in mechanical manufacturing, automobile manufacturing and other fields because of its compact structure, high transmission ratio and stability energy. The principle can be simply described by three elements, "sun-planet-inner tooth ring". As the solar wheel rotates, the planetary wheel follows it and rotates along the orbit of the inner tooth ring. In this process, the engagement between the planetary wheel and the inner tooth ring is always maintained in a certain position, thus enabling the transmission. Because the planetary wheel can circle the solar wheel, and the inner tooth ring can mesh with the planetary wheel, the transmission ratio of the planetary gearbox can be set according to the size of the solar wheel to obtain different transmission ratios. It has many advantages, such as high transmission efficiency, can carry large torque, has high torque contrast, high accuracy. Its design is more flexible, you can adjust the transmission ratio and the number of planetary wheels according to the need, to adapt to different working conditions. Therefore, whether in aviation, aerospace, machinery manufacturing, automotive manufacturing and other fields, planetary gearbox has a wide range of applications.

Planetary gearboxA planetary gearbox is a mechanical drive, also known as a reducer, commonly used to drive robots and industrial equipment. Its main components are the internal gear, planetary gear, and external gear. It slows down the speed of the machine through the interaction of the gears and increases its torque to achieve more efficient work. Has a range of advantages such as efficient, stable, compact and easy to install. Its compact design allows it to be installed in a small space, while efficient transmission efficiency reduces energy waste and machine damage. In addition, the device has a very stable driving capability, so that the machine still works smoothly and reliably after long hours of work.

Due to the structural characteristics and excellent material quality, it has a higher transmission efficiency, can better transform the input power and speed, improve the mechanical rotation efficiency. Gear and bearing parts are made of high quality materials, with good strength and stiffness, can withstand a lot of load and working pressure, strong durability, can be used stably for a long time. Compared to other drives, the planetary gearbox is more compact and can be contained inside smaller machines, thus reducing the footprint of the machine and making it easier to use. The design structure is simple, the installation and maintenance is relatively easy, do not need a large number of professional equipment and skills, so as to reduce the mechanical failure rate and maintenance cost, more economical and practical. The gear bearing structure is relatively stable and tight, and the transmission process is relatively smooth and smooth, which can stably output the power, so as not to affect the operation process of the machine.

The evaluation of the defects in the planetary gearbox may be performed using the following provisions:

1) The size, quantity and production location of all defective magnetic particle inspection marks shall be recorded and illustrated. Magnetic marks can be recorded by adhesive tape method, photographic method and other effective methods;

2) The defects with a ratio of length to width greater than 3 shall be treated as linear defects; the defects whose ratio of length to width is less than or equal to 3 times shall be treated as circular defects;

3) If two or more defects show the trace on the same line and the spacing is less than or equal to 2mm, it shall be treated as one defect, and the length is the sum of the length of the trace and the spacing;

4) In addition to confirming that the display traces are caused by external geometric factors or improper operation, other display traces greater than or equal to 0.5mm shall be treated as the defect side.

The above are some professional knowledges on the planetary gearbox by VSD Motors. For more relevant information, please contact us.