The principle and working principle of the slewing bearing

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Each component has its basic structural construction and related structural principles. The rotation support is the same as ordinary bearings. What is the structure of the bearing for the mechanical parts of the rotary support, and today, I will explain to you in detail here to explain the relevant principles and working principles of the transfer support.

1. The structure of the rotation support

1. Large size

The size is relatively large, and its diameter is usually 0.2-10 meters, and the diameter is greater than 40 meters.

2. Undertaking multiple aspects of load

Generally, we must bear the load of several aspects, not only to withstand axial force and radial force, but also to withstand larger torque. Therefore, a rotary support often plays the role of several ordinary bearing.

3. Slow operation speed

The operation speed is very slow, usually less than 50 rpm. In many occasions, the rotation support does not operate continuously, but only turns round trips in the angle, which is equivalent to the so -called “swing bearing”.

4. Manufacturing process

In terms of manufacturing processes such as materials and thermal treatment, there is a big difference between rotating support and rolling bearings.

5, with gear

Generally, the rotating support has a rotary gear and a sealing ring for dustproof, and the ordinary rolling bearings are not.

6. Different installation methods

The rotating branch is not covered on the core shaft like ordinary bearing and is packed in the bearing box. Instead, it is fixed to the upper and lower support.
Slewing ring
Second, the principle of rotation support

Rotary support is a large bearing that can withstand comprehensive loads, also known as “turntable bearings”. It mainly relies on lubrication and friction to achieve the effect of operation. The friction between the roller and the steel ring to achieve the purpose of operation is a combination bearings with high efficiency and high carrying capacity.

The turning branch support structure and working principle have been explained to the application of the reckless design structure, because the special nature of the bearing itself in many ways in various fields.

What is the working temperature of the adaptation of the slewing bearing

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Rotary support is a very important part of the machine. Basically, each machine is indispensable for this component. Because this part is fragile, it can also be regarded as a consumables. normal operation. Let ’s take a look at the work temperature of the adaptation of the rotary support.

Single -row ball rotary bearing 01 series
Rotate support can work normally at -300C ~+700C. If users need to adapt to lower or higher temperature reincarnation support, our company can make special design. The rotary support is used in a particularly harsh environment, such as marine climate, dust or grinding particles, sand, dust, cement, coal, etc. Special sealing rings, protective devices, and suitable fuel channels should be selected. Therefore, in order to enable your support to normal, I hope to do daily maintenance and maintenance.

Rotate the dental tooth surface should ensure that every 8-10 working days should be cleaned once every 8-10 working days. Do not mix with foreign bodies.

Features of Rotary support materials

The transfer branch is mainly composed of a circle, rolling body, holding frame, and sealing circle. Because different parts have a special effect in practical applications, they have different considerations in design selection

Under normal circumstances, the rotary supporting roller uses the overall hard -hard carbon chromium bearing steel. The rotary supporting circle uses the surface quenching hard steel. When the user does not have special requirements, it is generally made of 50MN steel, but sometimes in order to meet the needs of the host in some special applications, you can also choose the surface of the surface of other brands according to the specific conditions provided by the user. Her hard steel, such as 42CRMO, 5CRMNMO, etc.

Small and medium -sized rotary supporting forging uses circular or square rods as a blank material. The grain tissue and mechanical properties of stick materials are uniform and good, good in shape and size, and good surface quality, which is convenient for organizing mass production. As long as the heating temperature and deformation conditions are rationally controlled, there is no need for large forging deformation to forge with good forging. Ingots are only used for large forging. The ingot is a casting tissue with large columnar crystals and loose centers. Therefore, it is necessary to use large plastic deformation to break the cylindrical crystal into fine grains to compact loose and compact it to obtain excellent metal tissue and mechanical properties.

The rotary support is the structure of the main form, segmented, and isolation blocks. Among them, the overall and segmented shelves are manufactured for cast aluminum alloy No. 20 or ZL102. The isolation block is made of polyamide 1010 resin, ZL102 cast aluminum alloy and other manufacturing. With the continuous development of the material industry, the nylon GRPA66.25 is also promoted and applied in the design of the segmented maintenance.

The rotary support inheritance sealing is made of material -resistant rubber. The codes of the cover material and the supply status of the rough supply are according to the table. In the table, “T” indicates that the rough rough is supplied by the quality, and the “Z” indicates that the rough rough is supplied in a positive fire state.

The above is the introduction of the characteristics of the working temperature and the reckless support materials of the recking support. It is hoped that it can help everyone. Our company produces customized rotary support bearing, turntable bearing and other products. The bearing of the bearing can satisfy the guests. Our purpose is to solve problems, create value, and be valuable companies for customers! The constant crown bearing, the future of intelligence, and only work hard for the high -quality rotation support!

How to disassemble the large -slewing bearing? Four methods help you

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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 bearing.

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 leave a message or call us, we will serve you wholeheartedly