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

The special slewing bearing for Crane was successfully completed and delivered

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Recently, our company (Luoyang Hengguan Bearing Technology Co., Ltd.) has customized the special slewing ring bearings for cranes for a ship management company in Indonesia. It took 35 days of overtime production process, and the quality and quantity have been successfully completed and delivered to buyer.
the
Crane is a foreign word, English is crane, also known as marine crane, marine crane, is a large deck machinery on board, it is a kind of equipment for loading and unloading cargo on ships, hydraulic crane is a commonly used on ships Loading and unloading equipment. At present, our company has provided replacement slewing ring bearing products and services for: MITSUBISHI (Mitsubishi), TSUJI (tsuji industry), FUKUSHIMA (Fukushima), MacGregor, ROBALLO and other crane brands.


Assembly site The drawing model of the crane slewing ring bearing is: 62M3937.05.631, which is a single-row four-point ball slewing ring with internal teeth, and its shape parameters are 3078*2596*170, which is a common crane bearing structure. The shipowner plans to replace the large bearings of the two gram cranes. When the ship entered the port of Shanghai, China, it made a plan for overhaul and replacement of the bearings. Since the ship is open all year round, the detailed parameters of the large bearings will be confirmed after the ship berths and unloaded. After the cargo is delivered, the next voyage will start, and the round trip will take about 35-45 days; therefore, the shipowner requires that the bearings must be sent to the destination port in Shanghai within 35 days for seamless connection, so that the ship can be replaced in time after arriving at the port. , Time is money, we will be more valuable if we compete for points and create value for customers!
The delivery site The vivid and real cases again and again are the better answers for Hengguan people to repay the society. Luoyang Hengguan Bearing, as a member of the traditional manufacturing industry, but we have tried our best to abandon the traditional industrial thinking, not self-centered, not technology-centered, not product-centered; but customer-centered, service-oriented As the center; user-oriented, market demand as the core; establish brand strategic thinking, only in this way can we develop for a long time and become stronger day by day! Choose Hengguan to keep you worry-free! Come on, join us, we hope you will be a participant in our next successful case!

Low noise Ct scan slewing bearing complete completion

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Recently, Luoyang Hengguan Bearing Technology Co., Ltd. (hereinafter referred to as: Hengguan Bearing), which is a low -noise rotation support for a large medical equipment manufacturer in South Korea, has successfully went offline and all meet the requirements of the customer’s use.

The low noise rotation support bearing is supported on the CT machine. The ordering party requires that the noise must be controlled within 60 decibels, otherwise it will be rejected. This product plan begins with the inquiry from the Ministry of Foreign Trade of our company. After several rounds of negotiations and discussions, in -depth understanding of customer use conditions and requirements, through video conferences, accurately understand the pain points and demands of the client, and then combine our technical staff of our company. Professional research and judgment, signed this order after half a year.

Slewing ring
After receiving the order, our Si immediately arranged a high -quality forging material to strive to grasp the quality barrier from the source. First of all, the top priority of these products is how to control the noise and noise reduction is Guan Jian. Our technical staff fully combines professional skills and practical experience, formulated a complete processing process, and marked the main points that should be paid attention to in each process. The bearing rolling road is a very important process during the bearing processing process, which is related to the life, performance, accuracy, and stability of a set of bearing. Followed by the batch of low -noise rotary support for the bearing, it is vertical installation. In order to ensure the smooth rotation, our company specially customized a batch of overall nylon maintenance racks. Third, our company has made special improvements in maintaining the shelf, which can greatly reduce operating noise and ensure that the operating noise is controlled within 60 decibels. (Popularization of common sense: When we usually talk normally, the sound intensity is about 80 decibels)


After a series of tight and orderly processing and production, the batch of products are successfully completed and offline. After testing, all requirements were within the scope of the drawing of the guests, and the Henglee challenged again! The important thing is that we keep our promises and realize the customer’s demands. We believe that in the future, we will export more high -quality rotary support for the bearings, go to the world, carry forward the Chinese manufacturing industry, promote the spirit of the craftsmen of the great powers, and let the world fall in love with Chinese manufacturing!

The special slewing bearing of Keling crane was successfully completed and delivered

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Recently, our company (Luoyang Hengguan Bearing Technology Co., Ltd.), to a ship management company in Indonesia, a custom -made carrier -specific bearing of the Cingling Specific Capital, which lasted for 35 days of overtime production process. buyer.

The crane is a foreign word. The English is CRANE, also known as a ship crane and a shiplift machine. It is a large deck machine on the ship. It is a device for ship loading and unloading. Planting and unloading equipment. At present, our company gives: Mitsubishi (Mitsubishi), Tsuji (辻 Industry), Fukushima (Fukushima), McKega, Roballo and other crane brands have provided replacement of rotary support for bearing products and services.


At the assembly site, the bearing of the bearing of the bearing of the bearing is: 62M3937.05.631, which is a four -point ball -type rotary support for the inner teeth. The shape parameters are 3078*2596*170, which is a common gram of the bearing structure. The shipowner plans to replace the two grams of large bearing. When the ship enters the port of Shanghai in China, it has booked a large repair replacement to replace the bearings. As the ship is full of universal year, the detailed parameters of the large bearing will be confirmed after the ship is shore and the unloading is completed after the ship is shore. After the goods, the next voyage will be turned on, about 35-45 days; so the shipowner requires that within 35 days, the bearing will be seamlessly connected to the port of Shanghai. , Time is money, competing for points, creating value for customers, we will be more valuable!
The vivid and true case at the delivery site is the better answer sheet of Hengguan returned to society. Luoyang Hengguan Bearing, as a member of the traditional manufacturing industry, but we have tried our best to abandon the traditional industrialization thinking, do not take self -centered, do not take technology, and do not take products as the center. Centered on; with user -oriented, market demand as the core; establishing brand strategic ideas, only in this way, can develop for a long time, increasingly strong! Choose Henguan to keep you worry -free! Come on, join us, I hope you will become our next full case participant!

High speed and silent slewing bearing for CT scanner machine is successfully completed

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igh speed and silent slewing bearing for CT scanner machine is successfully completed

 

Recently, the high-end slewing bearing for medical CT machine designed and produced by our company for customer from South Korea has been successfully rolled off the production line, and all the indicators of the finished product have passed the inspection.

For the CT machine special slewing bearing, the South Korean CT machine manufacturer and us communicated for more than a month of full technical details , and calculated the bearing capacity, service life and noise value according to customer requirement.

slewing bearing

This product has an outer diameter of 990mm and an inner diameter of 820mm. It is a toothless four-point contact ball slewing bearing structure with P5 accuracy. It is a high-end precision slewing bearing; and because it is medical, it has extremely high requirements for noise reduction.
According to the actual working conditions of customers, our technical engineers actively improve the product processing technology, and strive to make products that meet the actual needs of customers. First, the 42CrMo quenched and tempered material is used to make the material performance better and more stable, which guarantees the product quality from the source; secondly, the product raceway and appearance are comprehensively polished to ensure high product precision; thirdly, for the product’s silent requirements, A special segmented nylon cage device is used to lock the ball in the cage pocket while ensuring that the steel ball can rotate freely, thereby reducing the noise impact caused by the free movement of the cage in the raceway. Reduce rotating noise. Through the above efforts, we ensure that the finished products of the slewing ring meet various technical requirements.

After the finished product came out, after trial assembly test, it has fully met the requirements of the confirmed drawings of both the customer and us, and the rotation is flexible and light, and the rotation is silent. Starting torque is less than 70Nm, running torque is less than 30Nm and the noise value is less than 60dB 1m.

The vision of “Let the world fall in love with Made in China is not only a slogan, but also implemented in practical actions. It requires countless Chinese companies to constantly challenge themselves technologically and seize the right to speak for China in the core field of manufacturing. We Hengguan people carry this great dream and actively practice it! The road is long and long, Hengguan people will persevere in pursuit! May you and I walk along this great journey.

How to increase the brightness of the slewing bearing surface? Is there any good solution?

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After a period of use, the turnaround will find the surface of spots or discoloration on the surface, which not only affects the territory and smoothness of the bearing surface, but also directly affects the effects of the bearing and the service life. So, how to increase the brightness of the turn support surface? Is there any good way to solve it? Next, follow the editor to learn about it.

1. Plating

Electroplating is a layer of light protective film required to form a light protective membrane on the surface deposition layer required by the surface of the thorough support to the surface of the base. This method can not only increase the brightness of the rotating support surface, but also play a role of surface rust. Electroplating can be divided into single metal plating, multi -layer combination electroplating, and alloy plating.

There are many factors that affect the quality of the coating, such as: pre -plating treatment, the purification method and degree of plating fluid, the rationality of the governance method, the establishment of the plating system, the determination of the combination and thickness, the process parameters (pH value, temperature, current density) , Additive (light brightener, tideline, dehumidifier, wetting agent, dispersant), plating liquid analysis and supplementary system, operating system, post -plating treatment (de -hydrogen, closure), etc. Of course, this electroplating layer only plays a protective role on the surface of the rotating branches. It has not changed the internal structure of the bearings. During the daily use process, the wear of the bearing will still affect the brightness of the bearing and the risk of rust.

2. Machine shaping

Through the mechanical method, the metal surface layer changes changes, thereby increasing the hardness and high -intensity sclerosis layer. The degree value is reduced, so that the surface brightness of the bearings can be improved from the outside, and it can also improve the surface fatigue strength of the parts and reduce the sensitivity of the fatigue gap.

The first two are how to increase the surface brightness before the unused reckle support, and during the use process, it can only be maintained through later maintenance and cleaning to do a good job of the brightness of the bearing surface.

Slewing ring

3. Do a good job of anti -rust work

(1) Clean

Select the suitable solvent for cleaning during the use of rotation support. This will not destroy the rust -proof process on the rotating support surface, and at the same time, it will not cause serious corrosion phenomena. Doing the surface cleaning of the bearings can restore the brightness of the bearing surface.

(2) Lubrication work

Do a good job in the maintenance of the bearings in the daily use process, and regularly lubricate the bearings. Before that, the editor of the Ronda also shared the oil lubrication method of the turntable bearing. In addition to lubricating work in daily use, we must also pay attention to maintaining the dryness of the bearing surface, which can also increase the brightness of the bearing surface.

The metallic gloss of the rotating support bearing steel is actually very bright. The reason why we have the need to increase the brightness of the bearing surface, and most of the reasons are caused by the rust and cleaning of the bearings during the use process. Rust and cleaning work is also very important for improving the surface brightness of the rotating support. Doing the cleaning and maintenance of the bearings during the use of the bearing can increase the brightness of the bearings. At the same time, the rust -proof treatment of the bearing surface before use can also increase the brightness of the rotation support surface.

Necessity and Adjustment Method of Gear Clearance Adjustment of Slewing Bearing

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When installing slewing bearings with teeth for tower cranes, excavators and other equipment, it is necessary to adjust the gear clearance correctly. So do you know the necessity of adjusting the gear clearance of the slewing bearing? How to adjust it?


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1. The necessity of adjusting the gear clearance of the slewing bearing
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1. Different applicable work scenarios
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The size of the gear clearance of the slewing bearing is related to the characteristics of the gear transmission. When the gear transmission is used for heavy-duty work, the gear clearance needs to be larger. The gap should be smaller.
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2. Improper gear clearance affects normal work
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The gear transmission of tower cranes and excavators is not only required for heavy-duty work, but also requires frequent forward and reverse rotation, and the speed is not high. Whether the clearance is too large or the clearance is too small, it will have adverse effects. If the gear gap is too large, the operation of these equipment will not be very smooth, and the gear wear will be more serious; if the gear gap is too small, the lubricating oil film between the slewing bearing gear and the slewing reducer gear will be destroyed, causing The friction between the two becomes larger, and the tooth surface wears faster. Coupled with manufacturing errors and elastic deformation of the turntable, it is very likely that the gear will be stuck.
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Therefore, for heavy machinery such as tower cranes and excavators, in order to ensure the reliability of equipment rotation, it is very necessary to keep the gear gap of the slewing bearing at a moderate size and debug it according to the actual working conditions.
Slewing ring
2. Adjustment method of slewing bearing gear clearance
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1. Meshing tightly to adjust the gap
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In the position with high gear meshing tightness, adjust the gear backlash to the rated value. The value of this value should be adjusted strictly according to the given value, otherwise it may cause damage to the slewing bearing. In addition, in the process of gear clearance adjustment, it is also necessary to pay attention to the position of the teeth.
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2. Use feeler gauge to measure and adjust
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When the radial runout of the slewing bearing gear reaches a high point, the gear gap can be measured with a feeler gauge. If the gap is different from the given value, the slewing reducer gear can be moved to change the center of the slewing reducer gear and the slewing bearing gear. Correct the distance. If the slewing reducer gear cannot be moved, it can be adjusted by moving or re-fixing the slewing bearing. After debugging, let the slewing bearing rotate a few times to see if the adjusted clearance meets the requirements. If there is a radial jump of the gear to a higher point, it should be marked and adjusted again.
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When adjusting the slewing bearing gear clearance, if there is no gnawing between the slewing bearing gear and the slewing reducer gear, and the slewing mechanism can run smoothly, it means that the gear clearance has been adjusted properly.
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Through this article, I believe that everyone already knows the necessity and adjustment method of slewing bearing gear clearance adjustment. Timely adjustment of slewing bearing gear clearance can avoid equipment failures caused by inappropriate gear clearances and ensure the reliability of equipment rotation. Luoyang Hengguan Bearing Technology Co., Ltd., as a powerful manufacturer of slewing bearings and slewing bearings, can not only provide you with high-quality products, but also provide thoughtful and considerate after-sales service and technical support. If you have any questions, you can leave a message or call for consultation!

The special reckle of the bearing of the bearing of the bearing of the bucket pile was successfully installed and commissioned!

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Recently, Luoyang Hengguan Bearing Technology Co., Ltd. (hereinafter referred to as Hengguan Bearing) is a large domestic pile -up materials manufacturer in China. The installation and debugging were successful a few days ago!

The rotary support bearing was repaired and repaired by the pile of the power plant. Due to the years of disrepair, the owner could not find the drawings and parameters related to the bearing. In this case, after receiving the notice of the customer, our company immediately dispatched relevant technical personnel to drive to the scene, the on -site surveying and mated sham -shaped related parameters, and confirmed that the rotary support bearing is a model that we often do.
Division turning machine turning support
Because the owner needs a large amount of operation at the scene, the pile of the feed machine cannot stop for a long time; after the constant crown bearing confirmed the order, it quickly responded. The processing of the product materials in the factory was successfully completed on the tenth day. And successfully passed the customer acceptance and acceptance; after that, due to the urgent need of the scene, the Hengguan bearing arranged a special car to ship in time. In the afternoon of the day, I was loaded and arrived at the construction site the next morning to unload the goods safely. At this point, both of the guests were relieved, and the owner also gave a thumbs up again and again!
Rotary support installation site
The barrel is also known as the bucket pile feeder. It is a high -energy efficiency equipment for continuous loading and unloading of bulk materials for modern industrial bulk. It is currently widely used in ports, docks, metallurgy, cement, steel plants, coking plants, coal storage plants, and power plants Wait for the stacking operation of the material storage field (ore, coal, scorched carbon, sand and gravel).

The role of the recklessness of the bucket pile feeder is to support the turning structure. The leading direction force, horizontal force and turning torque generated by the turning structure during operation and non -operation, so that the machine is in a stable state.鉴于其工况情况，常用的回转支承轴承结构有两种，一种是重型外齿单排交叉滚柱式回转支承，如1797/2100、1797/2460、1797/2500、1797/2600、1797/ 2635, 1797/3230, etc.; The other is the three -row roller rotation support, such as 131/132.45.2500, 131/132.45.2800, 131/132.50.3150, 132.50.3550, 131/132.50. 4000, 131/132.50.4500, etc. These are common models, which are generally available in stocks or current materials. For non -standard customization, our company can provide technical support such as selection, design, and computing for free. For details, please call inquiries.

“Customer -centered and market -oriented” is the concept of our Henguan people who always adhere to. We are willing to serve the friends of merchants with excellent product quality, good service experience! I sincerely invite you to consult and negotiate!