Product Description
Plant engineering machinery Power shift transmission Planetary gearbox for power transmission
Product Description
Features of construction
1. the transmission type is fixed shaft type, normal mesh, hydraulic shift, small shift impact.
2. Its 2 clutch shells are integrated and installed on the same shaft, and the 4 groups of clutches work together to synthesize 2 CZPT gears and 2 back gears with compact structure and high transmission efficiency.
3. The front end of the gearbox is equipped with a brake for parking braking.
Detailed Photos
Product Parameters
| Engine input power | 40-55KW | ||
| Engine input speed | 1800-2400 r/min | ||
| Transmission ratio of each gear | FI=7.01 | FI=3.67 | FI=4.96 |
| FII=2.78 | FII=1.46 | FII=1.96 | |
| RI=7.01 | RI=3.36 | RI=4.96 | |
| RII=2.78 | RII=1.46 | RII=1.96 | |
| Working fluid | 6#/8# hydraulic transmission oil | ||
| Control valve oil pressure | 1.2-1.5MPa | ||
| Lubricate cooling oil pressure | 0.15-0.3MPa | ||
| Operating temperature | 80-110ºC | ||
Gearbox dimensions
Company Profile
HangZhou Yunqi Machinery Sales Co., Ltd. is located in the Economic development zone of HangZhou City, ZheJiang Province, with superior geographical location and convenient transportation. It has 2 branches, HangZhou CZPT Agricultural Equipment Technology Co., Ltd. And HangZhou Shunye Machinery Technology Co., Ltd., mainly engaged in sugarcane harvester and construction machinery gearbox.
CZPT Agricultural Equipment Technology Co., Ltd. Has a complete set of large-scale factory 10000 square meters, office area 1500 square meters. At present, the company has 7 departments including manufacturing department, technology department, research and development center, purchasing department, Marketing Department (including international market management department), after-sales service department, and comprehensive department, and has the independent management ability and channels of machinery import and export foreign trade. The company has 2 full-time technical consultants, and has maintained long-term cooperation with several major national research institutes and professional colleges. The company has strong technical force, 3 senior engineers, 12 R & D, design and process engineers, and rich work experience. Excellent sales and after-sales team is the main guarantee for customer service. HangZhou CZPT is fully capable of providing comprehensive solutions for our customers to relieve all the worries of customers.
Our Advantages
Certifications
Packaging & Shipping
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Challenges in Achieving High Gear Ratios with Compactness in Planetary Gearboxes
Designing planetary gearboxes with high gear ratios while maintaining compactness presents several challenges:
- Space Constraints: As the gear ratio increases, the number of gear stages required also increases. This can lead to larger gearbox sizes, which may be challenging to accommodate in applications with limited space.
- Bearing Loads: Higher gear ratios often result in increased loads on the bearings and other components due to the redistribution of forces. This can impact the durability and lifespan of the gearbox.
- Efficiency: Each gear stage introduces losses due to friction and other factors. With multiple stages, the overall efficiency of the gearbox can decrease, affecting its energy efficiency.
- Complexity: Achieving high gear ratios can require complex gear arrangements and additional components, which can lead to increased manufacturing complexity and costs.
- Thermal Effects: Higher gear ratios can lead to greater heat generation due to increased friction and loads. Managing thermal effects becomes crucial to prevent overheating and component failure.
To address these challenges, gearbox designers use advanced materials, precise machining techniques, and innovative bearing arrangements to optimize the design for both compactness and performance. Computer simulations and modeling play a critical role in predicting the behavior of the gearbox under different operating conditions, helping to ensure reliability and efficiency.

Maintenance Practices to Extend the Lifespan of Planetary Gearboxes
Proper maintenance is essential for ensuring the longevity and optimal performance of planetary gearboxes. Here are specific maintenance practices that can help extend the lifespan of planetary gearboxes:
1. Regular Inspections: Implement a schedule for routine visual inspections of the gearbox. Look for signs of wear, damage, oil leaks, and any abnormal conditions. Early detection of issues can prevent more significant problems.
2. Lubrication: Adequate lubrication is crucial for reducing friction and wear between gearbox components. Follow the manufacturer’s recommendations for lubricant type, viscosity, and change intervals. Ensure that the gearbox is properly lubricated to prevent premature wear.
3. Proper Installation: Ensure the gearbox is installed correctly, following the manufacturer’s guidelines and specifications. Proper alignment, torque settings, and clearances are critical to prevent misalignment-related wear and other issues.
4. Load Monitoring: Avoid overloading the gearbox beyond its designed capacity. Excessive loads can accelerate wear and reduce the gearbox’s lifespan. Regularly monitor the load conditions and ensure they are within the gearbox’s rated capacity.
5. Temperature Control: Maintain the operating temperature within the recommended range. Excessive heat can lead to accelerated wear and lubricant breakdown. Adequate ventilation and cooling measures may be necessary in high-temperature environments.
6. Seal and Gasket Inspection: Regularly check seals and gaskets for signs of leakage. Damaged seals can lead to lubricant loss and contamination, which can cause premature wear and gear damage.
7. Vibration Analysis: Use vibration analysis techniques to detect early signs of misalignment, imbalance, or other mechanical issues. Monitoring vibration levels can help identify problems before they lead to serious damage.
8. Preventive Maintenance: Establish a preventive maintenance program based on the gearbox’s operational conditions and usage. Perform scheduled maintenance tasks such as gear inspections, lubricant changes, and component replacements as needed.
9. Training and Documentation: Ensure that maintenance personnel are trained in proper gearbox maintenance procedures. Keep comprehensive records of maintenance activities, inspections, and repairs to track the gearbox’s condition and history.
10. Consult Manufacturer Guidelines: Always refer to the manufacturer’s maintenance and servicing guidelines specific to the gearbox model and application. Following these guidelines will help maintain warranty coverage and ensure best practices are followed.
By adhering to these maintenance practices, you can significantly extend the lifespan of your planetary gearbox, minimize downtime, and ensure reliable performance for your industrial machinery or application.

Advantages of Planetary Gearboxes Compared to Other Gearbox Configurations
Planetary gearboxes, also known as epicyclic gearboxes, offer several advantages compared to other gearbox configurations. These advantages make them well-suited for a wide range of applications. Here’s a closer look at why planetary gearboxes are favored:
- Compact Size: Planetary gearboxes are known for their compact and space-efficient design. The arrangement of multiple gears within a single housing allows for high gear reduction ratios without significantly increasing the size of the gearbox.
- High Torque Density: Due to their compact design, planetary gearboxes offer high torque density, meaning they can transmit a significant amount of torque relative to their size. This makes them ideal for applications where space is limited, but high torque is required.
- Efficiency: Planetary gearboxes can achieve high efficiency levels, especially when properly lubricated and well-designed. The arrangement of multiple meshing gears allows for load distribution, reducing individual gear tooth stresses and minimizing losses due to friction.
- Multiple Gear Stages: Planetary gearboxes can be designed with multiple stages, allowing for higher gear reduction ratios. This is particularly advantageous when precise control of output speed and torque is required.
- High Gear Ratios: Planetary gearboxes can achieve high gear reduction ratios in a single stage, eliminating the need for multiple external gears. This simplifies the overall design and reduces the number of components.
- Load Sharing: The multiple gear meshing arrangements in planetary gearboxes distribute loads evenly across multiple gears, reducing the stress on individual components and enhancing overall durability.
- High Precision: Planetary gearboxes offer high precision and accuracy in gear meshing, making them suitable for applications that demand precise motion control.
- Quiet Operation: The design of planetary gearboxes often leads to smoother and quieter operation compared to some other gearbox configurations, contributing to improved user experience.
Overall, the advantages of planetary gearboxes in terms of size, torque density, efficiency, versatility, and precision make them an attractive choice for a wide range of applications across industries, including robotics, automotive, aerospace, and industrial machinery.


editor by lmc 2024-11-29