Planeettapyörävetoinen vaihteisto kylmähöylille

The planetary track drive gearbox for cold planers is a compact, high-torque transmission system engineered for heavy-duty tracked machinery, particularly in construction applications. This gearbox utilizes an epicyclic gear arrangement consisting of a central sun gear that receives input power from a hydraulic or electric motor, multiple planet gears orbiting the sun gear while meshing with both it and a fixed outer ring gear, and a carrier that holds the planet gears and serves as the output mechanism connected to the tracks. In cold planers—specialized machines designed for milling and removing asphalt or concrete layers from road surfaces—the gearbox is installed within the travel drive system to provide propulsion, enabling low-speed, high-torque movement essential for stability on uneven terrain and efficient operation under substantial loads.

Key benefits encompass high torque density due to even load distribution across multiple gear contact points, mechanical efficiency often surpassing 95% with minimal friction losses, enhanced durability from hardened materials and integrated seals that resist contaminants and shock loads, and a small footprint that facilitates seamless integration into the undercarriage. In practice, this gearbox ensures reliable traction and precise control during road maintenance tasks, contributing to improved productivity, reduced downtime, and longevity in harsh environments, while also supporting applications in related heavy machinery such as excavators and bulldozers.

Planeettapyörästön mitat

EH 10000 SC

EH 13000 SC -KISKO

EH 16000 SC

EH 22000 SC

EH 26000 SC

EH 33000 SC

EH 33000 W

EH 45000 SC

EH 60000 SC

EH 70000 SC

Cold Planer Planetary Track Drive Gearbox Benefits

• High Torque Density
  The planetary track drive gearbox excels in delivering exceptional torque output within a compact structure, allowing cold planers to handle demanding milling tasks on asphalt and concrete surfaces efficiently. This high torque density results from the epicyclic gear system, where multiple planet gears distribute loads evenly, enabling the gearbox to transmit substantial power without increasing size, thus enhancing overall machine performance in challenging environments.
• Superior Mechanical Efficiency
  Designed with minimal friction losses through rolling contact between gears, the planetary gearbox achieves mechanical efficiency often exceeding 95 percent, which optimizes energy use in cold planers. This efficiency translates to reduced operational costs, lower heat generation, and prolonged component life, ensuring consistent propulsion and milling operations even during extended use on road maintenance projects.
• Enhanced Durability and Reliability
  The robust construction of the track drive planetary gearbox, featuring hardened materials and integrated seals, provides exceptional resistance to shock loads, contaminants, and harsh conditions typical in cold planer applications. This durability minimizes downtime, supports heavy-duty tracked movement, and ensures reliable performance in severe environments, such as surface mining or road resurfacing, thereby extending the service life of the equipment.
• Compact and Space-Efficient Design
  By utilizing a multi-stage planetary arrangement, the planetary track drive maintains a small footprint while integrating seamlessly into the undercarriage of cold planers, facilitating easier installation and maintenance. This compactness allows for better weight distribution, improved maneuverability on uneven terrain, and compatibility with various tracked vehicles, ultimately contributing to enhanced productivity without compromising structural integrity.
• Low Backlash and Precise Control
  The track drive gearbox incorporates precision engineering that results in minimal backlash, enabling smooth and accurate speed control essential for the precise milling depths required in cold planers. This precision supports high-stiffness operations, reduces vibrations, and improves operator control during intricate tasks, leading to superior surface finishes and reduced material waste in construction applications.
• Versatile Gear Ratios and Adaptability
  Offering a wide range of reduction ratios through combinable planetary stages, the track drive planetary gear reducer adapts effortlessly to varying load requirements in cold planers, from low-speed high-torque propulsion to optimized cutting speeds. This versatility enhances machine flexibility across diverse projects, such as urban road repairs or large-scale highway milling, while maintaining high efficiency and compatibility with hydraulic or electric drives.

Track Drive Gearbox Applications

• Rakennusteollisuus
  The track drive planetary gearbox is extensively utilized in construction equipment such as excavators, bulldozers, and loaders, where it delivers high torque and precise control for maneuvering on uneven terrain. This gearbox enhances operational efficiency by enabling speed reduction and torque amplification, ensuring stability during heavy lifting and earthmoving tasks, while its compact structure allows seamless integration into undercarriages for improved machine durability and reduced maintenance needs in demanding job sites.
• Kaivos- ja louhintateollisuus
  In the mining and quarrying sector, the planetary track drive powers heavy-duty machinery like tracked vehicles and conveyors, offering exceptional resilience to shock loads and high reduction ratios for low-speed, high-torque operations. It supports efficient material handling and propulsion in harsh underground or open-pit environments, minimizing downtime through robust construction and even load distribution, thereby optimizing productivity in extraction and processing activities.
• Metsäteollisuus
  The planetary gearbox plays a crucial role in forestry machinery, including tracked harvesters and forwarders, by providing the necessary torque for navigating dense woodlands and steep slopes. Its design ensures smooth power transmission and high efficiency, facilitating tasks such as log extraction and terrain traversal, while resisting environmental contaminants to maintain reliability and extend equipment lifespan in rugged outdoor conditions.
• Maatalousteollisuus
  Within agriculture, the planetary track drive gearbox is integrated into tractors, combines, and harvesters to deliver consistent propulsion and torque for plowing, planting, and harvesting on varied farmlands. This gearbox optimizes fuel efficiency and minimizes space requirements, enabling precise speed control and enhanced traction in muddy or uneven fields, ultimately supporting higher yields and sustainable farming practices through durable, low-maintenance performance.
• Öljy- ja kaasuteollisuus
  The track drive gearbox is essential in oil and gas operations for driving field service trucks, drilling rigs, and pumps, where it handles extreme torque demands and environmental stresses. It facilitates reliable movement and power transfer in remote extraction sites, with features like high efficiency and compact integration contributing to reduced operational costs and enhanced safety during exploration and production activities.
• Marine Industry
  In marine applications, the gearbox supports propulsion systems in vessels like offshore supply boats and salvage equipment, ensuring robust torque delivery for tracked or drum drives in challenging aquatic environments. Its corrosion-resistant build and high reduction capabilities enable precise control during docking, towing, and underwater operations, promoting vessel stability and efficiency in harsh sea conditions.

Planeettapyörästö kylmähöylille	Planeettapyörästö kuormaajille
Planeettapyörästö multausjyrsimille	Planetary Track Drive for Sprayers

Track Drive Planetary Gearbox Components

• Aurinkovarusteet
  The sun gear serves as the central component in the track drive planetary gearbox, receiving input power from the motor or shaft and meshing with surrounding planet gears to initiate torque transfer. Constructed from hardened alloy steel for durability, it enables precise rotation and load distribution, ensuring optimal performance in heavy-duty applications like construction vehicles and excavators.
• Planeettavaihteet
  Multiple planet gears in the planetary gearbox orbit the sun gear while meshing with both it and the ring gear, facilitating speed reduction and torque amplification through even load sharing. Typically made from high-strength materials with precision grinding, these gears enhance efficiency and reduce wear, making them ideal for rugged terrains in mining and forestry equipment.
• Rengasvaihde
  The ring gear, also known as the annulus, forms the outer boundary of the gearbox, featuring internal teeth that engage with the planet gears to provide a stationary reference point for torque output. Crafted from robust steel with surface hardening, it supports high-load operations and contributes to the compact design, ensuring reliability in agricultural tractors and industrial conveyors.
• Planeetankantaja
  The planet carrier in the planetary gear reducer holds the planet gears in position, rotating as a unit to connect to the output shaft and transmit combined torque from the gear assembly. Built from cast iron or aluminum for strength and alignment, it minimizes vibrations and extends service life, proving essential for stable performance in robotics and automotive systems.
• Tuloakseli
  Connected to the power source such as a hydraulic motor, the input shaft of the planetary track drive gearbox delivers rotational energy to the sun gear, enabling the entire system to function with high efficiency and controlled speed. Designed with coaxial alignment and durable materials, it handles varying loads effectively, supporting applications in wind turbines and marine propulsion systems.
• Lähtöakseli
  The output shaft in the track drive planetary gear reducer receives amplified torque from the planet carrier, delivering it to the tracks or wheels for propulsion while maintaining precise control and minimal backlash. Engineered for axial and radial loads with sealed bearings, it ensures long-term durability and seamless integration in demanding environments like oil and gas drilling rigs.