Archive for year: 2023

As a key component in the mechanical system, the performance and life span directly affect the stable operation of the entire device. After a long period of use, disassembly and maintenance may be required to ensure its normal work. This article will in -depth discussions on how to disassemble the bearing of the external tooth turntable, dismantle the process, and provide detailed steps and key precautions to help readers better understand and handle this key mechanical component.

1. How to disassemble the outer tooth turntable bearing

1. Preparation

Before the disassembly operation is performed, it must be fully prepared. This includes understanding the disassembly drawings of the device, preparing the necessary tools and materials to ensure that it can be carried out quickly and safely during the disassembly process. At the same time, close the equipment power and ensure that the equipment is in a safe state.

2. Disassembling steps

Remove external parts

According to the disassembly drawings, the external parts are gradually removed, such as the outer cover and the connection bolt. Use appropriate tools to ensure cautious operation to prevent damage to parts.

Separate internal and external circles

Through the appropriate tools, gradually separate the internal and external circles. Pay attention to check whether there are foreign bodies or dirt in the circle, which may be one of the causes of bearing failure.

Take out the roller and keep the shelf

Take the roller and keep it carefully. Checking whether their surface is abnormal wear or damage, which is essential for subsequent maintenance and replacement.

Clean and check

After disassembly, cleaning various parts, especially inner and outer circles, rollers and holders. Use the cleaner to remove the fat and dirt, and wipe it clean with a clean cloth.

Measurement size and gap

Use the measurement tool to accurately measure the size and gaps of each component. This helps evaluate the degree of wear of the bearings and decides whether to replace parts.
Bearing
2. How to install the outer tooth turntable bearing

1. Lubrication and assembly

Properly lubricate all components before reasonsment. Choose proper lubricating fat or oil to ensure that the external tooth rotor bearing can run smoothly during work.

2. The assembly process

According to the reverse order of disassembly, gradually assemble the external tooth turntable bearing. Make sure that each component is installed correctly, the bolt is in moderate tightening, and it is too tight or loose.

3. Function test

After the assembly is completed, the functional test is performed to ensure that the external tooth rotor bearing can rotate freely without abnormal sound and vibration.

Regarding how to disassemble the external tooth rotor bearing, you already know it. By removing the external tooth turntable bearing and maintenance, we can extend its service life and improve the reliability of the equipment. In this process, be sure to operate carefully to ensure that each step meets relevant standards and requirements. Only in this way can we better protect and maintain this key mechanical component to ensure that the equipment runs for a long time and quickly.

The turntable bearing is a crucial technology in the field of mechanical engineering. It carries the weight of rotating parts and allows the mechanical system to operate smoothly. This simple and precise device plays a key role in all walks of life. From industrial machinery to household appliances, it is everywhere. This article’s turntable bearing manufacturer will further explore the role of turntable bearing and its importance in modern society.

What are the effects of turntable bearing?

1. Industrial manufacturing

The turntable bearing plays an indispensable role in industrial manufacturing. Among heavy machinery, such as wind turbines, aviation engines, and construction machinery, huge stress needs to be reliable to support, which is the place of martial arts for turntable bearing. They are designed to bear high -speed rotation and large torque to ensure the smooth operation of mechanical equipment. The use of turntable bearing enables these huge mechanical systems to operate quickly, improve production efficiency, and contribute to the development of the industrial field.

2. The field of transportation

The turntable bearing also played a key role in the field of transportation. From cars to trains to planes, whether it is land, ocean or air transportation, they need complex mechanical systems to ensure safe and stable operation. The turntable bearing plays a supporting and guiding role in key components such as wheels, aircraft engines and ship propellers. By reducing friction and rotating efficiency, the turntable bearing makes the transportation more energy saving and reliable, and provides the foundation for the rapid transportation system of modern society.
Transit Bearing 3. Home Electric and Office Equipment

In addition, turntable bearing is also widely used in home appliances and office equipment. From household fans to computer hard disk drives, turntable bearing has played a key role in support. Among these small devices, they guarantee the smooth operation and long life of the equipment. The rotor bearing can be critical to the stability and reliability of these electronic equipment, so they become an indispensable part of modern life.

4. The field of aerospace medicine

In addition, with the continuous development of technology, the turntable bearing has also played an increasingly important role in the fields of aerospace, medical equipment and robotics technology. In the precision operation of the aerospace navigation system and equipment and the joint structure of the robot, the turntable bearing has played key support and guidance, so that these advanced technologies can be realized.

In general, although the turntable bearing appears small in the mechanical system, it plays a huge role in all aspects of modern society. They support the development of industrial manufacturing, transportation, household appliances and high -tech fields, and provide a solid foundation for social progress and convenience. Therefore, the turntable bearing can be regarded as a silent supporter in the mechanical field, and their existence provides more convenient and advanced lifestyle for humans.

The excavator is one of our commonly used construction machinery vehicles. It mostly uses a single row of 4 -point contact with the ball -type inner teeth to support. When the excavator is working, the rotation support is inherited with complex loads such as axial force, radial force, and turning torque. If it is not maintained and maintained in time Reasonable maintenance is very important. So, do you know what are the maintenance and maintenance projects of the excavator’s rotation support?

The maintenance and maintenance of the rotation support and maintenance mainly include: the rotary support, the maintenance of the roller laburge, the maintenance of the gear mesh area, the maintenance of the internal and external oil seals, the maintenance of the fastening bolt, the adjustment of the gear gap, the maintenance of the blocking, and the prohibited use of the water switching support.
The maintenance and maintenance of the excavator slewing bearing
1. The lubrication of the road

The slewing bearing roller and the rolling road are prone to damage and failure, and the failure rate is higher. During the use of the excavator, adding lubricating fat to the roller can reduce the friction and wear between the rolling bodies, rolling roads, and isolation blocks.

The cavity is generally 2#lithium lubricating fat lubrication, and the lubricating grease cycle is generally 100h. Under the special conditions such as dust, high temperature, and continuous work, the additional injection cycle should be appropriately shortened. When adding lubricating fat, you need to rotate the rotation support, and the injection of about 15 ° ~ 25 ° is added every 15 ° ~ 25 °. When adding an additional, you should pay attention to observing the sealing ring of the rotary support. When you see the lubricating fat from the outer sealing circle, you should stop the additional injection.

2. Maintenance work in the gear meshing area

Open the metal cover on the base position of the turning platform to observe the lubrication and wear of the small gear of the internal teeth and the rotary motor reducer. The metal cover should be pad under the pad and tightened with bolts. If the bolt is loosened or the rubber pad fails, the water will penetrate from the metal lid into the lubricant (oil collection disk) of the inner gear of the rotation, resulting in premature lubrication and decreased lubrication effects, resulting in aggravation and corrosion of the gear.

The method of replacing the inner gear lubrication and lubricating fat is as follows: First of all, use the working device to support the excavator, and the operator enters the excavator’s tape to open the metal cover; second, the excavator is placed on the ground, and the excavator is started to drive the excavator. To do about 10 laps, you can exhaust the lubricating fat. The rotating branch inner gear lubrication cavity also adds 2#lithium base lubrication fat. The replacement cycle is generally 2000h.

Slewing ring

3. Maintenance of internal and external oil seals

During the use of excavators, the internal and external oil seals should be checked frequently during use. If the sealing ring of the turning motor is damaged, the gear oil inner gear oil is leaked into the inner gear lubrication cavity. In the process of the inner gear of the rotary support and the small gear of the rotor reducer, the grease is mixed with the gear oil, the temperature is the temperature, the temperature After elevation, the oil will become thinner, and the fat that becomes thinner will be pushed to the upper end of the inner gear, and it will penetrate into the roller through the inner oil seal, causing the outer oil sealing and dripping oil, resulting in rolling bodies, rolling tracts and external outside. Oil seal is accelerated and damaged.

4. Maintenance of fastening bolt bolt

After the excavator is 100h and 500h, the bolt should be checked. After that, 1000h each work should be checked once to ensure that the bolt has sufficient pre -tightening force.

After the bolt is repeatedly used, its tensile strength will be reduced. Although the torque when it is reinstalled is in line with the specified value, the pre -tightening force of the bolt after tightness will also be reduced. Therefore, when re -fing the bolt, its torque is 30 ~ 50N · m larger than the specified value. The tightening sequence of the rotary support bolt should be tightened by 180 ° symmetrical direction multiple times. When tightening again and again, all bolts should be guaranteed to have the same pre -tightening force.

5. Adjustment of gear gaps

When the slewing bearing inner gear and the rotary motor redevelopment output gear assembly, the rotating support of the inner tooth ritter beating point should be adjusted to adjust the gap of the wheel tooth. The melting side gap is selected according to the size of the gear mold. Under normal circumstances, the gear meshing side gap increases accordingly as the wheel’s teeth increase. The excavator reaches the inner tooth tooth ritter beating point, and the sH value of the tooth side gap of the gear of the rotary motor reduction gear is ≥0.03m (m is the gear modulus).

6. Maintenance of blocking

The slewing bearing  is settled for disassembly and rolling. Positioning is sold into a cone structure, which is used to fix the blockage and prevent blocking. The blockage is located on the sides of the main load plane.

Once the positioning of the fixed blocking is loose, it will cause the blocking position, causing the rolling road to change in the blocking part. When the rolling body movement, it will hit and cause abnormal noise with the blockage. When using the excavator, the operator should pay attention to clean up the soil covered by the blocking place, and pay attention to observe whether the blockage occurs.

7. Forbidden to use water to switch to support

It is forbidden to use water to switch to support in order to avoid infiltration of water, impurities, and dust to enter the rolling lane, resulting in corrosion rust and rust, resulting in diluted grease, destruction of lubrication state, lubricating fat deterioration; avoid any solvents contacting the rotary support oil sealing oil seal , So as not to cause oil seal corrosion.

The slewing bearing  coefficient is a vital parameter in the field of engineering. Single -row rotating support is a key component widely used in various industrial machinery and equipment. It is responsible for supporting and turning important mechanical components. The rotating support coefficient directly affects the operating efficiency, accuracy and life of mechanical equipment. This article will explore the significance, influencing factors, and how to optimize the performance of the rotary support to improve the performance of mechanical equipment.

1. What are the friction coefficients of the rotation support

The concept of the slewing bearing coefficient: The friction coefficient refers to the ratio of friction between the relative motion between the two objects and the pressure of the contact surface perpendicular to the contact surface of the two objects. In the rotary support, the friction coefficient affects the force required for the support during the rotation process and the size of friction. The high friction coefficient can cause greater friction loss in mechanical equipment, which affects the rotation efficiency and heat of the equipment.

Second, the rotary supporting friction coefficient influencing factors

The rotating support coefficient is affected by various factors. The choice of materials is one of the main factors that determine the friction coefficient. The friction coefficient between different materials is very different, so you must choose the right material carefully when designing the backup. The surface roughness and lubrication conditions will also affect the friction coefficient. The smoother surface and effective lubricant can reduce the friction coefficient, thereby reducing friction loss.

3. Method of handling the rotary supporting coefficients

In practical applications, optimizing the rotating support coefficient is critical to improving the performance of mechanical equipment. First of all, reducing the friction coefficient can reduce the energy loss of mechanical equipment during operation, improve rotation efficiency, thereby saving energy and reducing operating costs. Secondly, optimizing the friction coefficient can reduce the wear of support, extend the service life of mechanical equipment, and reduce maintenance costs.
Back support 1. Select the right material

According to the specific application scenarios and working conditions, select materials with lower friction coefficients, such as high -performance polymer materials or coating materials.

2. Surface treatment

By surface processing technology, improve the smoothness of the support surface, reduce surface roughness, and reduce the friction coefficient.

3. Lubricant selection

Select the lubricant suitable for working conditions to maintain the lubrication state of the support surface, and reduce the friction coefficient and wear.

4. Optimization of load distribution

Reasonable design support structure, balanced load distribution, avoid local overload, and reduce friction.

5. Temperature control

Properly control the working temperature of the support to avoid increased friction coefficient caused by overheating.

The slewing bearing coefficient is an important parameter that affects the performance of mechanical equipment. By selecting the appropriate material, optimizing surface treatment, lubricant selection, and load distribution, we can effectively reduce the friction coefficient and improve the operating efficiency and service life of mechanical equipment. In the future engineering design, we should continue to pay attention to the research of the rotary support coefficients, continuously optimize the design, promote the development of engineering technology, and provide more efficient and reliable machinery and equipment for all walks of life.