How to solve the problem of serious gear wear of Roots blower?

Gear shaft wear is a common problem in equipment management and maintenance of enterprises, with a large number of damages and high frequency. Next, let's take a look at the maintenance method of Roots blower gear wear.

The main reasons for wear are as follows: 1. The manufacturing quality is not high, and the heat treatment does not meet the requirements, resulting in wear. In serious cases, the shaft head is broken and seriously affected. 2. Incorrect equipment installation, untimely maintenance, poor lubrication, etc; 3. Under the influence of vibration, pressure, impact and other forces, the impact of mating parts is caused. Due to the high strength of metal materials, the gap will shrink. Long term operation will inevitably lead to increased gaps, so wear, cracks, fractures and other phenomena are inevitable;

Generally, roots blower is not allowed to reverse (because of different clearance settings), so roots blower needs a check valve at the exhaust end. That is to say, let the wind enter the pipeline system from the roots blower to prevent the roots blower from suddenly shutting down, thus generating system pressure on the gas in the roots blower system, backflow impacting the roots blower, causing the roots blower to reverse and damaging the roots blower. In addition, when multiple roots blowers operate in parallel, assuming that one of them does not work, the one-way valve can also prevent waste gas from passing through unused roots blowers and damaging their reverse rotation. In short, it is to protect Roots blower from reverse rotation.

The so-called collision of roots fan blades is mostly caused by the increase of bearing clearance. If the synchronous gear cannot be replaced, it is recommended to use the bearing with good quality. If it is imported, at least the high-speed bearing of bushing or roller shaft should be used. The wear of roots blower gear can be based on the gear meshing clearance. If the gear wear exceeds the limit, the original gear can be replaced. When adjusting the gap between the two blades, use a feeler gauge to judge along the length of the blade.