Final drive assy kobelco

Types of Final Drive Assy Kobelco

A final drive is a vital component of tracked machinery that houses the drive motor and reduction gearbox. They are usually located in the swing frame or undercarriage of excavators, such as Kobelco excavators, to transfer power from the hydraulic motor to the tracks. There are two primary types of Kobelco final drives: upright drives and angled drives.

• Upright Final Drives: An upright final drive, also known as a vertical or straight final drive, is a type of final drive that features a vertically oriented design. It is a compact gearbox used to reduce the speed of the motor's output shaft and increase torque. The upright final drive's shaft directly connects to the machine's track or wheel. The upright design allows for easier integration into machinery where space is limited along the vertical axis. Kobelco excavators featured an upright final drive on its short-tail and regular excavators. They are usually located at the back of the machine. The upright final drive produces higher torque, making it suitable for tasks that require heavy lifting.
• Angled Final Drives: An angled final drive is a type of final drive that has a gearbox positioned at an angle. Like the upright variation, it reduces the speed of the motor's output shaft and increases torque. The angled placement allows for easier routing of shafts and spaces for installation into machinery. Kobelco excavators with an angled final drive are more efficient when it comes to power transmission. It minimizes energy loss due to friction, thus maximizing efficiency. They are commonly used in wheeled excavators and radius-retracting excavators. Depending on the model, the angled final drive may feature a double-reduction system that further boosts torque output.

Aside from the upright and angled classifications, the Kobelco final drive can also be grouped into planetary and orbital final drives. Planetary Final Drives usually feature a set of gears encased in a large cylindrical housing. The gear system consists of a central sun gear surrounded by several planet gears. They rotate together and orbit the sun gear. This configuration allows for a high torque output and compact design. Planetary final drives are widely used in heavy construction equipment like excavators due to their efficiency and ability to handle large power.

The orbital final drive, also known as a wheel drive motor, transfers torque from hydraulic motors to wheel shafts in a 90-degree arrangement. They are typically used in trac...

Both types of final drives can be further classified into small and large reduction units. The end drives come in various sizes and reductions to suit different applications. This includes providing the right balance between speed and torque.

Some Kobelco final drives also come with travel motors. They are essentially final drive assemblies that integrate a motor with a gear-reduction unit. Travel motors aid in simplifying the undercarriage system of a tracked machine by combining two essential functions into one compact assembly.

Specifications and maintenance of final drive assy Kobelco

Specifications

• Gear ratio:

The gear ratio of the Kobelco final drive refers to the speed-down ratio between the driving motor and the output shaft. This ratio determines the final output speed and torque.

• Reducer type:

  The final drive components commonly adopt planetary reducer designs. Final drives usually use planetary gear reduction designs. The planet gear structure has compact design and offers excellent torque transmission capabilities.

• Working temperature:

The operating temperature range of the Kobelco final drive is between -20 to 60 degrees Celsius. This means that the working environment temperature cannot be lower than -20 degrees Celsius and cannot be higher than 60 degrees Celsius.

• Protection level:

  The Kobelco final drive has an IP67 protection rating. This indicates that the drive is dust-tight and protected against submersion in water up to 1 meter for a duration of 30 minutes.

Maintenance

• Appearance Inspection:

  Regularly check the appearance of the final drive. Look for abnormal phenomena such as oil leakage, cracks, or deformations. If any abnormalities are found, they should be repaired immediately to prevent further damage.

• Lubrication Maintenance:

  Keep the proper lubrication of the final drive. Regularly check the oil level and oil quality. Ensure it is within the specified range, and the oil is clean and free from impurities. If the oil is insufficient or contaminated, add or replace it promptly.

• Tightening Maintenance:

  Periodically check and tighten the bolts of each component of the final drive to ensure they are in the correct tightness. This prevents loosening and leakage, which could affect the normal operation of the drive.

• Working Environment Maintenance:

Keep the working environment of the final drive clean. Remove dust and debris to prevent them from entering the gear chamber, which could cause abration of the gears and bearins. Ensure proper heat dissipation for the final drive to prevent overheating damage.

• Maintain proper operation:

Final drives must be operated per the prescribed loading requirements and avoid overloading or using them in excessively high-temperature environments to extend their service life.

Machinery industry scenarios: Final drive assy Kobelco

Final drives give motion to tracked or wheeled excavators. They receive rotation from the swing motor and decelerate the motor's torque. Usually, they have reduction gears and travel motors. When the travel motor's torque is increased, the machine moves at a higher speed.

The typical moving process using a Kobelco final drive is as follows:

• The swing motor rotates the final drive assembly, and the upper structure of the excavator swings in the desired direction.
• The final drive assembly decelerates the motor's rotation and transfers the power to the track or wheels, which propel the excavator forward or backward.
• By engaging and driving the track, the final drive assembly moves the excavator's upper structure.\xa0

In this scenario, the final drive assembly of the excavator performs the following functions:

• Receiving the swing motor's rotation.
• Decelerating the motor's torque, transferring the power to the track/wheels, and propelling the excavator in moving\/travel directions.

In this way, excavators can move at construction sites or other locations. Proper functioning of the final drive allows easy movement of excavators and, in turn, their use in digging utilities.

How to Choose Final Drive Assy Kobelco

When purchasing the final drive assembly, it would be helpful if the buyer prioritized quality over price. A well-made, high-quality Kobelco final drive will provide many years of service, even with the constant use of a direct driving force. While the initial investment may be slightly higher, the long-term benefits will be significant.

To ensure enough deviation from the standard final drivers and to minimize final drive selection mistakes, it would help to consult with an expert in final drive assemblies.

Take the final drive's model number, make, horsepower, machine height weight, and working ranges of the driving machine. It is also necessary to inspect the existing final drive for damage or wear to any of its parts. A detailed inventory of all the parts in the final drive will be needed before assembling it again with new parts or a new final drive.

Some suppliers of final drives will offer a warranty on the new final drive of up to a year or longer. Parts of the final drive that are not covered include seals, gaskets, and bearings, as they are subject to erosion and damage more quickly than other components. The warranty given is an indication of the manufacturer's confidence in the product.

Overall, using a new final drive assembly rather than replacing individual parts is recommended, as it is more cost-effective, efficient, and faster.

Final drive assembly Kobelco Q & A

Q: What is the difference between the final drive and final reduction gear?

A: The final drive consists of the final reduction gear, along with other parts like the final drive motor or gearbox output shaft.

Q: What are the signs of a failing Kobelco final drive assy?

A: Abnormal noises, fluid leakage, lower performance, or touting driving are common signs noticed by excavator users.

Q: Can a damaged final drive be repaired?

A: If the drive motor, planetary gears, or hydraulic pumps are not excessively damaged, they can be repaired. However, in cases of severe damage, it's advised to replace the final drive assembly entirely.

Q: What is the expected lifespan of a Kobelco final drive?

A: The lifespan of a final drive assembly depends on usage, maintenance, and care. Generally, they last for 4 to 6 years if proper care is taken and they are not used in overpowering and burdensome situations.