How to clean the slewing bearinig ? What are the scope of its application?

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Mechanical work by the inevitable intrusion of dust and impurities, as a heavy machinery or equipment used in large bearings, each having its own rotary bearing mounting hole, and lubricating oil holes sealing means, but still be affected complex environment. Once raised properly, may cause mechanical member rotatable with the debris into the interior of the rotary support, the increased friction between the rotary support and related accessories, forming the movable catching phenomenon may even lead to a mechanical stop. So you need to master the operation management method of cleaning, clean the impurities to protect production machinery is running.

Deposition can not be cleaned in a rotary bearing raceways dust, resulting in clogging of the oil injection duct, stuck in the roller track. Adding auxiliary equipment using the temporary high pressure descaling fluid injection into the rotary bearing, by repeating the rotation, so that relative movement between the sub-friction rotary bearing, the grease deposited on the inner race, the dust clean. After the injection of oil into the clean slewing, the descaling fluid clean.

Regular check-related accessories slewing ring is necessary, impurities intrusion protection accessories or damage caused by improper use of lubricants will have a large slewing ring consumption and shorten life.

Slewing range of applications is very wide, we look at what it can be used in place of it below!

1, lifting machinery

Lifting has included cranes, tower cranes and trailers, etc., because these machines use environment is more severe, rotating parts are often severely affected, so these sites will be used to customize the slewing ring, such as to Xuzhou Wanda slewing bearing manufacturers to provide jobs and environmental dimensions required for the machine, slewing bearing manufacturers combined with the actual situation will arrange for engineers to design in line with the bearing, and then put to use, not only to meet the needs of lifting machinery, but also make use of life is greatly enhanced.

2, construction machinery

Simple mechanical engineering division is like excavators, loaders. Slewing bearing capable of withstand the axial and radial forces and overturning forces and very compact, an excavator in the job and requires continuous core member is rotated, the rotary bearing is rotated. Application of the construction machinery applications belongs to the basic slewing ring, is more widely used.

3, processing machinery

Processing machinery like material processing, food processing, metallurgy, etc.,. With the continuous development of technology, people are not satisfied only the slewing ring used in engineering machinery, instead looking to the device platform processing machinery. Because the slewing bearing more compact than the original, may be subjected to an external force greater, more performance and good structure, so that the processing machine also has multiple applications.

4, military equipment

Competition is now military hard power of military equipment, as we see on television as the tanks turned the gun head, a shell hit the target accurately, this session is slewing ring plays a good supporting role; as well as artillery, radar, rocket launchers, etc., timely and stable rotation jump in launching military equipment is very important structural slewing ring, compared to conventional bearings have a good performance.

5. Other

In addition to connecting portions revolving bearing in industrial and medical applications, etc. In addition, in the field of power generation and the life has its shadow, the wind turbine tower and the yaw bearing is mounted in the cockpit, the pitch bearing mounted on the root of each blade and the hub connecting portion. Each wind turbine pitch bearing and a yaw bearing three. By application of slewing on the wind power plant, may be implemented in different process implemented to change the wind power generation, in the process, the root of the blade portion associated therewith is embodied swivel support bearing. Aspects of life slewing ring main applications focused on the playground, like a Ferris wheel, roller coaster, carousel and large pendulum clock, etc., the application of the slewing ring life safety has been well protected.

The above is how to organize small series of slewing ring contaminated debris clean-up as well as the entire contents of its scope of application, hoping to be helpful to everyone. Constant crown bearing, customer demand-oriented, be flexible customization to meet the real needs of customers and innovative sophisticated. Constant crown bearing, made Moses future, only high-quality slewing ring bearings and work!

Explanation of installation method of slewing bearing for large amusement facilities

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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.

Drawing pile drum slewing bearing selection and use

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The pushing machine is to utilize vibration, static or hammering action to pull the pile of the formation of the formation of the formation of the formation. The pilot operation is often used to vibrate pile driver, static pressure pile machine or double-active hammer, and then equipped with pile frame and rigging, so it is also known as vibration sinking pile machine and static press pile machine. The use of swinging on the pile driver is or is the power element of the upper body and the underwriting body to perform the relative swivel movement, then how specifically uses it? Let’s introduce you to you.

1. Selection of pile drum rotation support
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The pile drum rotation supports the rotation of the device through friction and lubrication, and can drive the mechanical rotation in the pile drum, provide support capabilities, mainly rotating, supported, to withstand axial, radial, tip, and impact Loads, since the quality requirements of the rotary support are relatively high, and the two-volleyball-type rotary support is generally selected when selecting the rotary support type, which is fastened to withstand a large axial force and torrent torque.
Pumped pile driver
2, method of use of pile driver rotary support
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Pumped pile drivers are rotated similar to the use of pile drivers and excavators, and the rotary support is a force element that is on the vehicle body and the underwriter to support the vehicle body and to withstand the working load. The inner seat is connected to the vehicle body, the outer race is connected to the vehicle body, and the inner ring on the inner seat is engaged with the rotary motor pinion. When the rotary motor is rotated, the carriage is driven by the pinion. The rotary support of the pile driver uses an internal teeth rotation, because there is a hit load, and the general tooth surface is hardened.
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When the pile driver is more common in the construction, the pile of the pile is fixed to the pile head, and the pile driver is suspended in the hook by the spring absorbers and rigging. Causes pile and soil resonance, soil structure damage, the friction between the pile body and the soil is reduced, and the pendulum is tightened, and the pile is gradually pulled out. If the eccentric block vibrator is used, the eccentric block must be adjusted due to the difference in the resistance between the sink and the pile. Such pulling pile equipment is simple, high-pull pile efficiency, and development prospects.
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Hydraulic pile driver uses its clipper to clamping the pile head, the hydraulic cylinder forces the top pressure clipper, so that the top is rising from a distance, pull the piles, and apply the pile to the clay, sand or the soil Copstanding paper or steel piles in the layer. There is also a mechanical method to pull the pile, that is, driven the hoist by the motor, and pulls the pile to force the floor using the tension of the wire rope pulley. It is convenient to use, low cost, but the pile strength is not large, the equipment is cumbersome, and the push pile is low, only for soft land layer construction. Using the double-acting steam hammer, the hammer is inverted, fixed to the pile head, and hang it under the rigging, first shake the soil, reduce the tightness of the pile and soil, then start the steam hammer, hammer up Vibration, tightening the rigging, gradually pulling the piles, can be pulled with concrete piles and other piles in various soil layers.
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In general, the pushing machine is a large mechanical equipment, like the excavator crane, which produces a large working load and friction during the rotation, and the ordinary bearings cannot meet the needs of large-scale mechanical equipment, so it needs to be used. Go to the rotary support, and to customize according to the actual situation when selecting the model, a special process can be performed on some wear, and the quality of the rotary support is increased.