Gear shaft and its importance and application

/in /by

1.Gear shaft and its importance

The gear shaft is an indispensable type of bearing involving the structure of the mechanical and equipment. It is a common component that transmits power, speed or displacement from one place to another place. It can ensure the continuous and stable operation of machinery and equipment, and is one of the most important parts of machinery and equipment.

2, gear shaft

The life span of the gear shaft is important. Therefore, the important factors of the important factors, internal and external, inside and outside, inside and outside the outside, outside, and outside, and liquid liquid, and separate internal and external, and internal and external separation factors, important and important factors Important and important seals, etc. ,correct. Correctly appropriate sealing of the performance and use of the gear shaft

3, gear shaft

The gear shaft is widely used as the type of machinery, especially the equipment, machinery, oil, oil, oil, oil, oil, oil and oil and oil and oil and oil and oil and oil and oil.

4, gear axis development

In recent years, with the continuous driving, the gear shaft has continued, and the gear shaft has become more and more. It, whether, whether it is whether it is in the direction of the gear shaft, the characteristics, the characteristics of the gear shaft, the characteristics, the characteristics , Cost -effective, to greatly improve and improve mechanical machinery and machinery

The importance and application of the gear axis above

What are the effects of the turntable bearing in CNC?

/in /by

Among the CNC vertical equipment, the turning workbench is an important component. Its high -speed operation and the requirements for carrying heavy workpieces to make it have high -precision operation and anti -overturning torque. This article introduces the role of a single -row cross -rolling roller rotor bearing in CNC.

The role of the rotor bearing in CNC

1. support workbench

The large -scale turntable bearing of the support workbench plays a key role in this important mission. Previously, most workbench used a combination of thrust bearing and radial bearing. This structure was complicated and used more materials. Especially when large box parts were resettled, the space of the entire machine tool was larger. The device and pre -adjustment of large -scale turntable bearing are also difficult, and it is more difficult to guarantee for China. The overall accuracy of the workbench is difficult to improve.
Bearing

2. Beat accuracy

Bearing beating is divided into synchronous jump and asynchronous beating. Synchronous beating can be greatly reduced by grinding work table, but the impact of asynchronous beating cannot be eliminated. It is mainly determined by the outer diameter tolerance and circular of the roller. Therefore, the better the bearing asynchronous beating, the smaller the radial and axial beating of the workbench, the higher the working accuracy. When selecting bearing brands and accuracy levels, we should not only pay attention to the bearing device beating, but in depth the accuracy standards that affect the asynchronous bearing bearing.

Third, bearing cooperation

When the bearing type is selected, it is recommended that the inner ring, the shaft, the outer ring, and the gear of the tooth are tightly matched. Because the outer ring is a rotating part, the tightness should be slightly larger than the inner ring, so that the inner ring is moved down and moved down, and adjusts to a certain pre -tightening amount. However, if the inner ring is considered to be a stop component and the inner ring is planned with the axis as a loose coordination, when the inner ring, lock in the inner ring or bearings are loaded, the inner ring may be oblique, that is, the bias occurs. This deflection will cause stress concentration in the contact area of the roller and the roller, forming serious scratches.

Therefore, now more design schemes have begun to adopt a more compact interspersed roller bearings. The role of the turntable bearing in CNC ride improves the limit speed. At the same time, the accuracy and stability are better. Not only can it save material costs, but it can also simplify the design plan. The above is the introduction of the turntable bearing manufacturer.

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

/in /by

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!

Five common methods of how to deal with slewing bearing damage

/in /by

Slewing bearing, also known as slewing bearing, is a new type of mechanical part composed of inner and outer rings and rolling elements. In various construction machinery such as automobiles, cranes, excavators, etc., slewing bearing is to transmit the axial working load of a turntable and chassis , radial horizontal load and overturning torque key element, it can withstand various loads, and can withstand a large axial, radial, overturning moment, has been well used in the industry, but there will also be some question. Today, the editor will share with you how to deal with the damage of the slewing bearing?​

Slewing ring
How to deal with slewing bearing damage
1. Inflexible rotation
If the rotation is inflexible, you can check the production time of the slewing bearing first. If the time is longer (such as more than half a year) or the weather is cold, the viscosity of the grease in the raceway of the slewing bearing is likely to increase, resulting in If the work is not working, you need to increase the power, and then restart it. If it still does not work, you must consult the after-sales service in time.

2, does not work after installation
If it does not work normally after installation, there is a high probability that the matching of the host mounting surface and the rotating support surface is not in place, and the mounting surface of the host needs to be processed to meet the requirements, or the gasket filling method can be used, and the size can also be adjusted as needed. The meshing position of the gear, in particular, pay attention to the beating of the gear, and confirm whether there is any debris in the meshing part of the large gear. If there is a problem that cannot be solved, you can replace a rotating bearing with a larger clearance.

3. Does not work during use
If it does not work normally during use, add grease in an appropriate amount, inject lubricating oil according to regulations, and check whether any impurities enter the raceway, and also check the meshing condition of the large and small gears to see if there are any impurities or Broken tooth.

4. Abnormal sound
If there is abnormal sound, you should first check whether the installation surface is flat, or stop the rotation of the slewing bearing first, and then confirm whether there is grease in the raceway. This noise can be eliminated after refueling in time. In addition, pay attention to whether the sealing ring is damaged, whether it is the elastic deformation of the slewing bearing caused by the loosening of the installation bolts, or whether there is a negative gap in the deformed part, etc., you can check whether the above conditions are the first.

5. Swing occurs
If rocking occurs, the mounting bolts of the inner and outer rings should be checked immediately and tightened as specified. Or increase the strength of the steel frame of the support, check whether there is overload work, and operate in strict accordance with the regulations.

The above is about how to deal with the damage of the slewing bearing. In fact, the common problems are inflexible operation, abnormal noise, shaking and breaking. When there is a problem, don’t panic, and carefully find the problem. Once solved, you can continue to use it. Today’s editor’s sharing is here. If you have any questions about the slewing bearing, you can leave a message or call for consultation. Your consultation and message are welcome!

Excavator slewing bearing replacement method and precautions

/in /by

Slewing bearings are widely used in many large construction machinery and equipment, such as our common excavators are one of them. Due to the large workload and complex working environment of the excavator, bearing damage will inevitably occur after long-term operation. The damage of the slewing bearing is generally manifested as abnormal noise, enlarged gap, oil leakage at the sealing device, etc. If the bearing is indeed damaged after investigation, it needs to be replaced in time. Next, the editor of Hengguan will introduce the replacement method and precautions of the excavator slewing bearing.
​​
1. Replacement method of excavator slewing bearing
​​
1. Disassembly method of old slewing bearing
​​
Connect the outer and inner races of the slewing bearing with the boarding and alighting, respectively, remove all the oil pipes on the slewing motor, and seal the head of the oil pipes with a clean plastic bag. Lift the upper vehicle with a crane, loosen and remove the outer ring bolts of the slewing bearing, and separate the upper vehicle from the lower vehicle.
​​
2. Assembly method of slewing bearing
​​
Clean the inner and outer races (including raceways), spacer sleeves, steel balls and bolt holes of the slewing bearing, and place the outer race on the inner race so that the raceways of the inner and outer races are on the same plane Put the steel ball and the spacer sleeve into the raceway through the radial hole, plug the block and install the taper pin firmly; when assembling the sealing device, pay attention to apply sealant to the part in contact with the sealing groove, and rotate The slewing bearing ensures flexible operation; add butter to make the raceway full of butter, and the oil pool of the slewing pinion and the large ring gear of the slewing bearing also needs to be filled with butter.
​​
3. Slewing bearing installation method
​​
Lift the upper car of the excavator with a crane. After the lower end of the slewing platform is aligned with the outer race of the slewing bearing, use tools such as round steel to align the upper and lower cars; assemble the bolts, and the bolts are installed in a triangular symmetrical manner , apply anti-loosening glue on the threads; at the beginning, the bolts cannot be tightened. After all the bolts are installed, use the torque wrench to tighten the bolts one by one; after the installation is completed, start the machine and make it rotate and other actions to check whether there is any abnormality.

Slewing ring
2. Precautions for replacement of excavator slewing bearing
​​
1. Choose a suitable site: When replacing the slewing bearing, choose a site with a large space and a flat ground to facilitate the separation and hoisting of the upper and lower parts.
​​
2. Careful hoisting: Whether it is to remove or install the bearing, the wire rope for hoisting needs to be hung well to ensure safe hoisting operation.
​​
3. Tighten the screws and lubricate them in place: when the slewing bearing is replaced, the screws should also be replaced to prevent dark damage, and the replaced screws should be tightened; apply enough lubricating oil to reduce the internal friction of the bearing.
​​
The above is the replacement method and precautions of the excavator slewing bearing summarized by the editor. I hope it will help you. During the daily maintenance and maintenance of the excavator, the operation of the slewing bearing should be checked, and the abnormality should be dealt with in time. This extends bearing life and saves your operating costs. If you have other questions or needs, feel free to leave a message or contact us by phone!

Common faults and treatment methods of slewing bearing

/in /by

Slewing bearing is a large bearing that can withstand comprehensive loads. It is widely used in many construction machinery, such as our common excavators, road rollers, etc. Bearing failure during operation is a headache for many construction machinery operators. Next, Hengguan Xiaobian will introduce to you the common failures of slewing bearings during daily operation and how to deal with them.


​​
Common faults and solutions
​​
1. Inflexible rotation
​​
The inflexible operation of the slewing bearing during use is generally due to insufficient grease, damage to the sealing strip, and foreign matter entering the raceway.
​​
Treatment method: add or replace grease, remove foreign matter and replace sealing strip. If the slewing bearing still cannot operate flexibly after taking the above measures, there may be a fault in the raceway, and it is necessary to contact the bearing after-sales service.
​​
2. Abnormal noise
​​
First of all, it is necessary to determine whether it is the sound from the slewing bearing. You can stop the rotation of the slewing bearing and other components operate normally to determine the source of the sound. Generally, the causes of abnormal noise in bearings include insufficient lubrication, which makes the rolling elements collide with the spacer, and foreign objects are mixed in the raceway.
​​
Treatment method: replenish grease in time. If the sealing strip is damaged, replace it and remove the internal foreign matter. If the bolt is loose, it needs to be tightened according to relevant standards.
​​
3. Shake
​​
The shaking of the slewing bearing is generally due to loose mounting bolts, insufficient rigidity of the steel structure supporting the slewing bearing, and overloading operations.
​​
Treatment method: If the bolts are loose, check all the inner and outer ring mounting bolts and tighten them as required; if the rigidity of the steel structure is not enough to produce elastic deformation, the strength of the supporting slewing bearing steel structure needs to be increased; do not overload.
​​
4. Broken teeth
​​
Most of the broken teeth are related to the non-standard installation. For example, the backlash of the large and small gears is improperly adjusted, which causes the two gears to mesh badly during operation, resulting in broken teeth; The mounting bolts are not tightly fixed, and the large and small gears are poorly meshed, resulting in broken teeth. In use, if overloaded and rotated at high speed, the host collides with obstacles, and foreign objects are stuck, it may also cause broken teeth.
​​
Treatment method: When installing, adjust the backlash strictly according to the requirements to ensure that the axes of the two gears are parallel, and the bolts should be tightened as required; the operation should be carried out in accordance with the operating procedures.
​​
The above are the common faults and treatment methods of slewing bearings in daily use of construction machinery summarized by Xiaobian. I hope it will be helpful to your operation. If you have any other questions or needs, you can leave a message or contact us by phone.

How to disassemble the large slewing bearing? Four ways to deal with it

/in /by

Slewing bearing is a kind of large bearing with special structure. It can bear large axial load, radial load and overturning moment and other comprehensive loads at the same time. It is widely used in various industries or equipment. Many friends are not very familiar with how to disassemble large slewing bearings. Next, the editor of Hengguan will introduce the four commonly used bearing disassembly methods for you.

1. Knock Disassembly Method

The knocking method is used in many disassembly scenarios. In simple terms, a copper rod or other soft metal material smaller than the inner diameter of the bearing is used to press against the shaft end (if the bearing is located at the end of the shaft), and a hand hammer is used to strike the inside of the bearing evenly and forcefully. The ring slowly dislodges the bearing. This method is simple and easy to implement, but the disadvantage is that it is easy to cause damage to the bearing, so be careful when operating, and pay attention that the impact point of the knock should not fall on the rolling body and cage of the bearing.

2. Pull out disassembly method

This method requires the help of a special puller, and the tool can be pulled evenly by rotating the handle to pull out the bearing. This method has better protection for the bearing, and the following points need to be paid attention to during operation:

1. The hook of the puller should be hooked to the inner ring of the bearing. If it is hooked on the outer ring by mistake, it may cause excessive loosening or damage to the bearing.

2. To align the screw rod with the center hole of the shaft, pay close attention to the force of the bearing during the pull-out process to avoid damage to the hook and bearing.

3. Pay attention to prevent the hook from slipping off, and the angle of the two feet of the puller should be less than 90°
3. Pushing and disassembling method

This method requires the use of a press to push the bearing, the working process is stable and reliable, and generally does not damage the machine and the bearing. Note that the force point of the press should be on the center of the shaft and cannot be biased. Common presses are manual, mechanical or hydraulic.

4. Heat treatment disassembly method

The bearings used for disassembly of the tight fit can be heat-treated first, and then pulled out with the help of a puller. Generally, the oil heated to about 100 ℃ is poured on the bearing to be disassembled. After the bearing ring is heated and expanded, the bearing is pulled out evenly with the help of a special puller. When disassembling this method, self-protection and oil recovery should be done to prevent burns; the shaft body should be wrapped before heating to prevent the bearing from being disassembled due to thermal expansion of the shaft body.

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

What is the working temperature of the slewing bearing?

/in /by

The slewing bearing is a very important part in the machine. Basically, every machine needs this part. Because this part is relatively fragile, it can also be regarded as a kind of consumables. You need to buy it frequently to keep the machine in good condition. normal operation. Let’s take a look at the working temperature of the slewing bearing.

The slewing bearing can work normally at -300C～+700C. If the user needs to adapt to the lower or higher temperature slewing bearing, our company can make special design. If the slewing bearing is used in particularly harsh environments, such as marine climate, dust or abrasive particles, sand, cement, coal powder, etc. Special sealing rings, protective devices, and suitable oil passages should be selected. Therefore, in order to make your support function normally, it is hoped to do a good job in daily maintenance and maintenance.

The tooth surface of the slewing bearing should be cleaned and changed every 8-10 working days, and foreign matter should not be mixed.

Features of slewing bearing materials

The slewing bearing is mainly composed of ferrules, rolling elements, cages, sealing rings, etc. Since different parts have special functions in practical applications, there are different considerations in the design and selection of materials.

In general, the rolling elements of the slewing ring are made of carbon-chromium bearing steel that is hardened as a whole. The slewing bearing ring is made of surface hardened steel. When the user has no special requirements, it is generally made of 50Mn steel. However, sometimes in order to meet the needs of the host in some special applications, other grades of surface can also be selected according to the specific use conditions provided by the user. Hardened steel, such as 42CrMo, 5CrMnMo, etc.

For small and medium slewing bearing forgings, round or square bars are used as blanks. The grain structure and mechanical properties of the bar are uniform and good, the shape and size are accurate, and the surface quality is good, which is convenient for mass production. As long as the heating temperature and deformation conditions are reasonably controlled, forgings with excellent performance can be forged without large forging deformation. Ingots are only used for large forgings. The ingot is an as-cast structure with large columnar crystals and a loose center. Therefore, through large plastic deformation, the columnar crystals must be broken into fine grains, and the loose compaction can be obtained in order to obtain excellent metal structure and mechanical properties.

The cages for slewing bearings have integral, segmented, spacer block and other structural forms. The integral and segmented cages are made of 20-gauge steel or ZL102 cast aluminum alloy. The spacer block type is made of polyamide 1010 resin, ZL102 cast aluminum alloy, etc. With the continuous development of the material industry, nylon GRPA66.25 has also been popularized and applied in the design of segmented cages.

The material of the slewing ring seal is made of oil-resistant nitrile rubber. The codes of the ferrule material and the supply status of the blank are as specified in the table. In the table, “T” means that the blank of the ring is supplied in a quenched and tempered state, and “Z” means that the blank of the ring is supplied in a normalized state.

The above is a complete introduction to the working temperature of the slewing bearing and the characteristics of the slewing bearing material. I hope it can be helpful to you. Our company produces customized slewing ring bearings, turntable bearings and other products. Hengguan Bearing strives for each set of slewing bearings. Support bearings, can make customers satisfied. Our aim is: to solve problems for customers, to create value, to be a valuable enterprise! Hengguan Bearings, intelligently create the future, only work hard for high-quality slewing ring bearings!

Disassembly method of slewing bearing

/in /by

Bearings, as a kind of mechanical conventional parts, are unavoidable with the use of equipment, so when our equipment or machines are routinely repaired or damaged, we need to disassemble the bearings, especially when the bearings are disassembled for faults, check the parts around the bearings, lubricate them. The situation of the agent and the bearing itself can be more clearly known to the fault, then the following editor of Hengguan Bearing will introduce the disassembly method of the slewing bearing to you.
​​
1. Instructions before disassembling the slewing bearing
​​
1. Use of dismantling tools
​​
(1) Use manual or hydraulic
​​
(2) Only use a special wrench
​​
(3) Use a puller
​​
(4) Use induction heating equipment (inner ring)
​​
(5) Use oil injection method
​​
2. How to disassemble
​​
(1) It should be carried out by or under the guidance of experienced personnel;
​​
(2) Before starting the disassembly, determine the specific method to be disassembled;
​​
(3) Keep the necessary bearing removal tools handy;
​​
(4) When reusing or inspecting a disassembled bearing, be careful to avoid scratching or damaging the bearing raceway or rolling elements; when disassembling the bearing from the bearing seat, the disassembly force is applied to the outer ring; when disassembling the bearing from the shaft, the disassembly force is applied to the outer ring. inner circle;
Slewing bearing
Second, the disassembly method of the slewing bearing
​​
1. Cold disassembly
​​
When removing smaller bearings, the bearing ring can be removed from the shaft by lightly tapping the side of the bearing ring with a suitable punch, preferably with a mechanical puller. The pull should act on the inner ring or adjacent components. Removal can be simplified if the shaft shoulder and housing shoulder have grooves to accommodate the puller grip. In addition, some threaded holes are machined at the position of the hole shoulder to facilitate the bolt to push the bearing out.
​​
Large and medium-sized bearings often require more force than machine tools can provide. Therefore, the use of hydraulic power tools or oil injection, or both, is recommended. This means that oil holes and oil grooves need to be designed on the shaft.
​​
2. Hot disassembly
​​
When disassembling the inner ring of needle roller bearings or NU, NJ, and NUP cylindrical roller bearings, the hot disassembly method is suitable. Two commonly used heating tools: heating rings and adjustable induction heaters.
​​
The heating ring is usually used to install and remove the inner ring of small and medium-sized bearings of the same size. The heating ring is made of light alloy. Heating rings are radially slotted and equipped with electrically insulating handles.
​​
If the inner rings of different diameters are frequently disassembled, it is recommended to use a debuggable induction heater. These heaters quickly heat the inner ring without heating the shaft. When disassembling the inner ring of a large cylindrical roller bearing, some special stationary induction heaters can be used.
​​
3. Remove the bearing installed on the conical shaft diameter
​​
The small bearing can be removed by pulling the inner ring with a mechanical or hydraulic puller. Some pullers are equipped with spring-operated arms, and the use of this self-aligning design of the puller simplifies the procedure and avoids damage to the journal. If the puller claws cannot be used on the inner ring, the bearing should be disassembled through the outer ring or by using a puller combined with a puller.
​​
When using the oil injection method, the disassembly of medium and large bearings will be safer and easier. This method injects hydraulic oil between two conical mating surfaces under high pressure through oil holes and oil grooves. The friction between the two surfaces is drastically reduced and an axial force is created that separates the bearing and shaft diameter.
​​
4. Remove the bearing on the adapter sleeve
​​
For the small bearing installed on the adapter sleeve with the straight shaft, you can use a hammer to knock the small steel block that acts evenly on the end face of the inner ring of the bearing to remove it. Before doing this, the adapter sleeve lock nut needs to be loosened a few turns. For small bearings mounted on the stepped shaft of the adapter sleeve, it can be removed by hitting the small end face of the adapter sleeve lock nut with a hammer through a special sleeve. Before doing this, the adapter sleeve lock nut needs to be loosened a few turns. For bearings mounted on a stepped shaft with an adapter sleeve, the use of a hydraulic nut makes bearing removal easier. To do this, a suitable stop must be installed close to the hydraulic nut piston. Oil injection is the easier method, but an adapter sleeve with oil holes and oil grooves must be used.
​​
5. Remove the bearing on the withdrawal sleeve
When removing the bearing on the withdrawal sleeve, the locking device must be removed. (such as lock nuts, end plates, etc.) For small and medium-sized bearings, lock nuts, hook wrenches or impact wrenches can be used for disassembly.
​​
For medium and large bearings installed on the withdrawal sleeve, the hydraulic nut can be used to easily disassemble. It is recommended to install a stop behind the hydraulic nut on the shaft end. The stop device can prevent the withdrawal sleeve and the hydraulic nut from flying out of the shaft when the withdrawal sleeve is suddenly separated from the mating position.
​​
The above is the relevant content about the disassembly method of the slewing bearing. I hope it will be helpful to you. In addition, we have rich experience in the production of slewing bearings and slewing bearings. If you need it, please feel free to inquire

Explanation of installation method of slewing bearing for large amusement facilities

/in /by

Slewing ring is a large-scale bearing often used in modern machinery and equipment, which can bear large axial and radial coincidence and overturning moments at the same time. At the same time, it is also an important part of the large-scale amusement facility slewing system, which bears various loads during the operation of the equipment. In addition to calculation and selection, attention must be paid to its correct installation and use. The harm caused by installation errors and improper use to amusement facilities can also not be ignored. So how to install the amusement equipment slewing ring? The following editor will introduce to you the installation method of large-scale amusement equipment slewing bearing.

 

The form of movement of amusement facilities mainly includes rotary movement, linear movement, and a compound movement of rotation and linear movement. Rotational motion is the main form of movement of amusement equipment, such as carousel, self-controlled aircraft and high-altitude flying, etc. The main component that realizes the rotational motion is the slewing bearing.

 

  1. Installation form of amusement equipment slewing bearing

 

In the field of amusement equipment, there are two ways to install slewing bearings: horizontal installation and vertical installation.

 

Flying tower and self-controlled aircraft amusement facilities are characterized by rotating around the central axis. Flying tower amusement facilities include high-altitude flying, head-shaking flying chair, etc., and self-controlled aircraft amusement facilities include self-controlled airplanes and big octopuses. The installation form of the slewing bearing in this type of equipment is horizontal installation.

 

The characteristics of the operation of the amusement facilities of the ferris wheel are that they rotate or swing around a horizontal axis. The amusement facilities of ferris wheel include screaming, big pendulum, etc. The installation form of the slewing ring in this type of equipment is vertical installation.

 

 

  1. Installation of slewing ring

 

  1. Before installing the slewing ring, check the mating surfaces and clean the two mounting surfaces to prevent any solvent from contacting the sealing belt or entering the raceway. Do not paint the sealing belt.

 

  1. The slewing bearing mounting seat components should have sufficient rigidity, the contact surface of the bearing must be cleaned, there should be no lubricating oil and must be kept dry, the mating surface should be machined to ensure that the two mating surfaces and the two ends of the slewing ring are in the whole Full contact on the circumference, reaching the flatness and inclination required by the relevant standards.

 

  1. The bolts selected for the slewing bearing are high-strength bolts, and the length of the installation bolts shall not be less than 5d (d is the thread diameter).

 

  1. The slewing bearing connection of amusement equipment adopts high-strength bolts of 8.8 or above. Full-threaded bolts cannot be used. The anti-loosening method is a double nut method. The two nuts should be the same. At the same time, they should be matched with flat washers to increase the support area and prevent the installation surface hardness. It is not high to cause plastic deformation of extrusion, which is beneficial to maintain the reliability of pre-tensioning. Since the spring washer will destroy the centrality of the bolt’s force, reduce the pressure area and rigidity of the nut on the connecting parts when passing, and reduce the connection strength of the bolt. Under no circumstances should the spring washer be used.

 

  1. When installing, the slewing bearing should be positioned radially first, and then the installation bolts should be tightened crosswise, that is, the installation is star-shaped, symmetrically and continuously in the 180° direction, and then re-tighten it again to ensure that the bolts on the circumference have the same pre-tightening. Force, and check the rotation of the turntable slewing bearing. In order to increase the reliability of the connection, the prestress of the tightened bolt should be 70% of the yield strength of the bolt material.

 

  1. In order to ensure the smooth rotation of the turntable slewing ring, the gears should be checked for meshing before the mounting bolts are completely tightened. The small value of the tooth side clearance is generally 0.03 ~ 0.04 X m (modulus), after the slewing ring is finally tightened , The tooth clearance of the pinion gears on the entire circumference should be re-checked.

 

The above is the explanation about the installation method of large-scale amusement equipment slewing ring. Luoyang Hengguan Bearing is a comprehensive entity enterprise of slewing ring/slewing ring bearing integrating design, research and development, production, sales and service. Products are widely used in new energy, medical, amusement, automation, lifting, construction, mining, metallurgy, ports, textiles, ships, environmental protection, aerospace, wind power and other fields. In addition, it also implements personalized optimization design and customized flexible production for different customers to meet customer needs. Friends in need are welcome to call for detailed consultation.