The necessity of overhaul of oil-free air compressor main engine

1. The machining accuracy of the screw and the host shell ensures that there is an appropriate gap between the screw and the host shell after the host is installed. The size of the gap has taken into account the difference in the deformation of the screw and the shell when the host is running at high temperature.

2. The oil film formed during the normal operation of the main engine prevents the direct contact between the screw and the screw. In a short period of time when the main engine is just started or stopped, because the oil film has not been formed or the oil film state is poor, there will be a certain degree of direct contact between the screws.

3. The gap between the screw and the front and rear surfaces is guaranteed when the screw is installed according to the requirements, and the screw has no axial displacement, so the end face gap is further guaranteed.

4. With the passage of time of the air compressor, the bearing of the main engine will be worn out, and this change will change the gap between the screw and the screw, and between the screw and the front and rear surfaces of the host shell. This clearance change is normal over the life of the bearing, and the resulting reduction in compressor air production is also normal. However, serious consequences may occur when the bearing wears and the main engine mating clearance exceeds the limit.

1) The large attenuation of the gas output of the oil-free air compressor may affect the normal production of the gas user.

2) Conflicts will occur between the internal screw of the main engine and the front and rear surfaces, and between the screw and the main body shell, and the motor load will increase sharply. The serious consequence is that the screw locks and the main engine is invalid. If the motor protection response is insensitive or invalid, the motor may be burned. .

It can be seen that overhauling the oil-free air compressor main engine is necessary.

 Steps for overhaul of oil-free air compressor main engine

1. Remove the corresponding gears and bearings.

2. Clean the screw, shaft and gap;

3. Adjust the gasket, grind the damaged surface of the shaft and the stator of the screw machine;

4. Trial operation, run-in adjustment.

It is not advisable for customers to maintain the oil-free air compressor main engine by themselves;

The main engine of the oil-injected screw air compressor should usually pay attention to the following points:

1. Whether the inspection of the intake and exhaust bearing seats needs to be corrected;

2. The bearing must be replaced in a complete set;

3. Check whether the rotor profile needs to be corrected;

Oil-Free Air Compressor Main Engine Supplier - Youteng

Wuxi Youteng Machinery Co., Ltd. was established in 2012 with a 20,000 square meters'factory. We mainly engaged in air compression system, vacuum system design consulting, engineering project and repairing services etc. We mainly provides air compressor equipments and accessories for compressors, such as Oil-Free Air Compressor, Air Compressor Motor etc. Oil-free air compressors ZR 300-750 ZRZT 400-900 VSD is a hot-product of Oil-free Air Compressors series, more details are as follows:

If you want to purchase Oil-Free Air Compressor Main Engine or air compressors and parts, you can contact us at any time. We have a complete service system and sufficient spare parts to solve your worries.