How to disassemble the large -scale rotor bearing? Four methods teach you

The turntable bearing is a large bearing with a special structure. It can withstand a comprehensive load such as a large axial load, radial load, and overturning moment. It also has a variety of functions such as support, rotation, transmission, and fixation. Applications in the seed industry or equipment are widely used. Many friends are not very familiar with how to disassemble large -scale turntable bearing. Next, Hengguan Xiaobian will introduce the four commonly used bearing disassembly methods for everyone.

1. Tapping and disassembling method

In many disassembly scenarios, the knocking method will be used. In short, using a copper stick or other soft metal materials less than the inner diameter of the bearing to the shaft end (if the bearings are at the end of the axis), use the handhand to knock on the bearing in the bearing. The circle slowly falls off. This method is simple and easy to do. The disadvantage is that it is easy to cause damage to the bearings. Therefore, you should be careful when operating. You need to pay attention to the rolling of the bearing and keeping the rack.

Second, pull out the disassembly method

This method needs to use a specialized tool to generate a uniform pull force by rotating the handle to pull out the bearings. This method is better to protect the bearing, and you need to pay attention to the following points when operating:

1. To hook the hook of the stretch to hold the inner ring of the bearings, if the accidental hook may cause excessive or damage to the bearing loosening on the outer ring.

2. To make the screw rod on the center hole of the bearing, pay close attention to the force of the bearings during the process of pulling out to avoid damaging the hooks and bearings.

3. Pay attention to prevent the hook from slipping, the corner of the bend of both feet should be less than 90 °

Third, pressure disassembly method

This method needs to use the pressure machine to press the bearing. The working process is smooth and reliable, and generally does not damage the machine and bearings. Pay attention to the effort point of the pressure machine should be on the center of the axis, and cannot be compressed. Common pressure machines are manual, mechanical or hydraulic type.

Fourth, heat treatment and disassembly method

The bearing for disassembling tightness can be performed first, and then pulled out with the help of the tension. Generally, the oil that is heated to about 100 ° C is poured on the bearing to be demolished. After the bearing ring is heated and expanded, the bearings are evenly pulled out with the help of a dedicated tape. This method should do a good job of self -protection and oil body recycling to prevent scalding; wrap the shaft body before heating, so that the bearing can not disassemble the bearings caused by heating and expansion.

The above is the specific introduction of how to disassemble the large -scale turntable bearing, I hope to help you. Luoyang Hengguan Bearing Technology Co., Ltd. is a comprehensive physical enterprise integrating design, research and development, production, sales, and service. The product quality is guaranteed. If you still have other questions about bearing, you can give it. We will leave a message or call us, we will serve you wholeheartedly!

How to install wind power turntable bearing? Briefly describe the installation points and precautions

In recent years, the clean energy represented by wind power is developing rapidly, which will play a positive role in alleviating energy pressure and environmental pressure. Wind power generation equipment generally has long working hours and harsh operating environment, so the performance requirements of its own bearings are higher. Turntable bearing is one of the main components of wind power generation equipment. It is a kind of large bearing with special structure that can withstand comprehensive load. So, how to install wind power turntable bearings? What are the key points and matters needing attention? Next, the constant crown Xiaobian for you to introduce.

Yaw Bearing of Wind Turbine Generator

1. Installation points of wind power turntable bearing

1, do a good job of inspection before installation

Check the installation surface of the host, pay attention to the strength of the supporting surface should be enough, the connection surface should be machined, the surface smooth. If the required flatness cannot be achieved through mechanical processing, it can be filled with materials with greater strength according to relevant standards, such as special plastics.

2. Pay attention to the load in the quenched soft belt area of bearing rings

The “S” marked on the end face of the ring is the quenched soft belt area of the ring of the wind power turntable bearing. During installation, pay attention to place the soft belt in the non-load area or non-regular load area (the plug hole is always located in the soft belt).

3. Radial positioning and preload

The bearing of the wind power turntable should be radial positioned during installation, the mounting bolts should be tightened cross-securely, and the rotation situation should be checked; When tightening bolts, ensure sufficient pretightening force, generally 70% of the upper yield limit of the bolt material; Spring washers should not be used for mounting bolts, but tempered flat washers should be used.
Turntable bearing
Second, attention to the installation of wind power turntable bearing

1. The finish and accuracy of the bearing mounting surface shall comply with the relevant regulations.

2. After the turntable bearing is unpacked, each joint surface should be cleaned to remove metal chips, paint, rust prevention agents, etc.

3. Clean the fitting part of the installation plane and check whether the seal is in the correct position.

4. In order to avoid deformation of the inner and outer rings of the bearing, it is strictly prohibited to weld the turntable bearing, otherwise it may be unable to be used.

5. The installation plane should be considered with convex and concave shoulder or positioning block for radial positioning.

6. The raceway and gear should be coated with a little grease to make the installation easier; After installation, ensure that the seals are compacting and smooth to avoid grease spill and leakage.

How to install wind power turntable bearing? The above is a specific explanation of the installation points and precautions for the small series. I hope to help you with your construction work. In order to achieve high energy efficiency of bearings for a long time, accurate matching, installation standards, timely maintenance and other work should be achieved. If you have other questions or needs, please feel free to leave a message or call us!