Cause of failure of belt conveyor accessory bearing

There are many problems in the integrated roller market. Generally, roller failure is divided into two types: failure and bearing structure failure. Among them, the cylinder, bearing seat, and carbon steel are heavy, and static electricity is easily generated in the supporting shaft door structure, causing damage and corrosion. Especially in mining production, when exposed to a working environment with high sulfur content, corrosion is more obvious; bearing failure is mainly manifested in:

1. Bearing strength, stiffness, fatigue damage and wear: The eccentric generates high frequency, which affects the axial force of the bearing. When idling, the radial ball bearing bears a large radial force and is difficult to withstand the axial force, which has obvious influence on the radial force. To the free movement of the ball bearing.

2. Poor sealing performance: During use, dust enters the inside of the bearing and enters the bearing raceway, causing the grease to solidify and deteriorate, and the bearing condition to be damaged. Bearing wear increases, leading to roller damage. In the case of high-speed operation, heat is generated due to the existence of internal friction. After stopping operation, the pressure decreases due to the decrease in temperature. These dusts can enter the contact seal structure during inhalation. Existing contact seal structures increase rotational resistance and wear. When the auxiliary roller of the belt conveyor is running at high speed, the radial runout and noise increase. The main factors affecting radial runout are tube body roundness, spindle roundness, bearing seat quality, axial positioning and assembly accuracy. Generally speaking, the problems that high-speed rollers need to solve are as follows: sealing structure design. The necessary new sealing structure solves the existing problems of breathing, dust removal, and water ingress of existing high-speed rollers, ensuring quality without increasing the rotational resistance of the rollers.

3. Bearing selection. After increasing the roller speed, increase the heat and select the bearing type to ensure good lubrication performance and service life of the roller.

4. Production and manufacturing process. The new process should ensure the processing and assembly accuracy of the roll structure, reduce the different coaxiality of related parts, and reduce radial runout and noise.

5. The weight of the roller takes into account the application of new materials, which reduces the quality of the roller, reduces the energy consumption of starting and braking, and reduces the electric field rate of the belt conveyor. Roller craft finishing release.

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