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Vibration mechanism of planetary gearbox

Planetary gearbox is mainly composed of central shaft, planetary gear and sun gear. In the gearbox fault, the probability of planetary gear and sun gear fault is 70%, so this paper mainly studies the fault of planetary gear and sun gear. Most of the gear faults are caused by...

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Research on fault diagnosis of gearbox

As a device that can effectively change the speed and transfer power, gearbox is widely used in various types of mechanical equipment. Because the gearbox often operates in the harsh environment of high speed and heavy load, the probability of failure is greatly increased, and it is also easy...

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Signal analysis of planetary gearbox

The vibration signal of gearbox can directly reflect its operation status, so the gearbox fault diagnosis based on vibration signal is more effective than other gearbox fault analysis methods. Before using vibration signals to diagnose gearbox faults, it is necessary to extract valuable characteristic signals from the collected vibration...

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Solutions to failure of asteroid gearbox

Due to the requirements of structure and economy, the planetary carrier must be designed with the structure of thin left spoke plate, thick right spoke plate, split assembly or integral casting, so that the pin will inevitably creep in the work. Therefore, it seems that it is not enough...

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Failure analysis of asteroid gearbox

In the early stage of new product development, there must be sufficient simulation analysis and calculation and a large number of experimental verification, and wind power asteroid gearbox is no exception. According to the theoretical mechanics analysis, there are several forces evenly distributed among several planetary gears. These forces...

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Structure and problem description of asteroid gearbox

The main components of planetary transmission include sun gear, planetary gear, ring gear, planetary carrier, pin shaft and bearing, which belong to NGW transmission type (Fig. 1). Asteroid gearbox is usually composed of one stage to multi-stage planetary transmission in series (one stage output is the next stage input)....

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Failure analysis of an asteroid gearbox

Asteroid gear has compact structure and high reliability. It is usually used for reducing transmission in industrial fields (rotary, walking, winch, etc.). Because of its high power density, it can achieve small volume and large speed ratio, so it can realize the rapid increase of torque for driving the...

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Gearbox model test under normal condition

The LSTM network model is established by selecting appropriate parameters to predict the oil temperature of gearbox. In order to verify the advantages of this method, it is compared with neural network (BP), SVM, random forest (RF) and ridge regression (RR). All methods adopt the same preprocessing, and train,...

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