China factory GS20 swing reducer/rotary planetary gearbox/for XCMG370 Liugong936 excavator spare parts gearbox assembly

Product Description

Product Description

  

Reducer Model Applicable Machine Model Motor Install Hole Housing Install Hole Shaft Pinion Gear Diameter Shaft Pinion Gear Height Shaft Pinion No. Teeth Weight/kg
A B C H Z
GS20A02 Hiyo26T
Sany
φ224 4-M16 φ484 14-φ25 φ236.5 110 14 335.35
GS20A06 XCMG Rotary dig drill XR160 φ224 4-M16 φ484 14-φ25 φ236.5 110 14 335.24
GS20A07 XCMGXE750 φ224 4-M16 φ484 14-φ25 φ224 120 11 336.01
GS20A09 Zoomlion300-330 Rotary φ224 4-M16 φ484 14-φ25 φ236.5 110 14 337.24
GS20A10 Sunward36Ton Rotary φ224 4-M16 φ484 14-φ25 φ224 120 11 338.87
GS20A12 SDLG12meter Pile Driver φ224 4-M16 φ484 14-φ25 φ238 133 15 344.00
GS20A13 XCMG690-700 Dual Rotary φ224 4-M16 φ484 13-φ25 φ236.5 110 14 335.86
GS20A14 Sunward75Ton Dual Rotary φ224 4-M16 φ484 14-φ25 φ236.8 135 12 342.83
GS20A03 Sany49Ton Rotary φ224 4-M16 φ484 14-φ25 φ224 120 11 336.81
GS20A15 36Ton Rotary φ224 4-M16 φ484 14-φ25 φ236.5 110 14 338.07
GS20A11 70-75Ton Dual Rotary φ224 4-M16 φ484 14-φ25 φ224 120 11 336.52
GS20A06 XCMGXR160 Rotary dig drill φ224 4-M16 φ484 14-φ25 φ236.5 110 14 335.24
GS20A17   φ224 4-M16 φ484 14-φ25 φ224 120 11 339.90
GS20A18   φ224 4-M16 φ484 14-φ25 φ224 110 13 333.90

Company Profile

     Junze Precision Machinery (ZheJiang ) Co., LTD., a wholly-owned subsidiary of Xihu (West Lake) Dis.n Group, was put into operation in October 2016 with a total investment of 250 million Yuan and a total construction area of 28,800 square meters. We mainly undertake coarse and finishing parts, reducer, gearbox, bridge and other supporting products, which are used in heavy machinery such as construction machinery excavator, high-speed railway and special industries. The construction of this project enables high-end parts finishing, reducer and bridge box production technology to reach the international advanced level.

    Products: Mainly undertake coarse finishing parts, reducer, gearbox, bridge and other supporting products, which are used in construction machinery excavator, high-speed railway and other heavy machinery. The construction of this project enables high-end parts finishing, reducer and bridge box production technology to reach the international advanced level.
1. At present, the company has a technical research and development team of more than 70 people, more than 90% of which have more than 10 years of hydraulic product technology accumulation, has become the main force of the company to develop new products.
2, the company currently around the hydraulic excavator hydraulic parts, products have formed a series:
Three major systems have been developed:
Positive flow system, negative flow system, load sensing control system;
Five series:
6 ton products, 8 ton products, 20 ton products, 40 ton products, concrete series products.

 

Packing

Packing according to customer’s requirement

ODM & OEM are both ok, since we have a sophisticated R&D team and precise equipment with the yearly output of 35000 pieces. 
Besides, we have another 4 brother companies belonging to our Xihu (West Lake) Dis.n Group. One is Xihu (West Lake) Dis.de Construction Machinery Co., Ltd, which manufactures excavators, 1 is ZheJiang Xihu (West Lake) Dis.n Paike Agricultural Machinery Co., Ltd, which is an agricultural machinery manufacturing enterprise integrating R&D, manufacturing, sales and service, 1 is ZheJiang Xihu (West Lake) Dis.n Casting Industry Co. Ltd which produces cast iron and other metals, the other is ZheJiang CZPT Hydraulics  Co., Ltd. which produces pumps, valves, motors.   
So, please feel no hesitate to send your inquiries, we will offer you the best price in time and the thoughtful service forever.
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Application: Motor, Machinery, Agricultural Machinery, Car, excavator
Hardness: Hardened Tooth Surface
Installation: Vertical Type
Layout: Coaxial
Gear Shape: Conical – Cylindrical Gear
Step: Double-Step
Customization:
Available

|

Customized Request

planetary gearbox

Challenges in Achieving High Gear Ratios with Compactness in Planetary Gearboxes

Designing planetary gearboxes with high gear ratios while maintaining a compact form factor poses several challenges due to the intricate arrangement of gears and the need to balance various factors:

Space Constraints: Increasing the gear ratio typically requires adding more planetary stages, resulting in additional gears and components. However, limited available space can make it challenging to fit these additional components without compromising the compactness of the gearbox.

Efficiency: As the number of planetary stages increases to achieve higher gear ratios, there can be a trade-off in terms of efficiency. Additional gear meshings and friction losses can lead to decreased overall efficiency, impacting the gearbox’s performance.

Load Distribution: The distribution of loads across multiple stages becomes critical when designing high gear ratio planetary gearboxes. Proper load distribution ensures that each stage shares the load proportionally, preventing premature wear and ensuring reliable operation.

Bearing Arrangement: Accommodating multiple stages of planetary gears requires an effective bearing arrangement to support the rotating components. Improper bearing selection or arrangement can lead to increased friction, reduced efficiency, and potential failures.

Manufacturing Tolerances: Achieving high gear ratios demands tight manufacturing tolerances to ensure accurate gear tooth profiles and precise gear meshing. Any deviations can result in noise, vibration, and reduced performance.

Lubrication: Adequate lubrication becomes crucial in maintaining smooth operation and reducing friction as gear ratios increase. However, proper lubrication distribution across multiple stages can be challenging, impacting efficiency and longevity.

Noise and Vibration: The complexity of high gear ratio planetary gearboxes can lead to increased noise and vibration levels due to the higher number of gear meshing interactions. Managing noise and vibration becomes essential for ensuring acceptable performance and user comfort.

To address these challenges, engineers employ advanced design techniques, high-precision manufacturing processes, specialized materials, innovative bearing arrangements, and optimized lubrication strategies. Achieving the right balance between high gear ratios and compactness involves careful consideration of these factors to ensure the gearbox’s reliability, efficiency, and performance.

planetary gearbox

Signs of Wear or Damage in Planetary Gearboxes and Recommended Service

Planetary gearboxes, like any mechanical component, can exhibit signs of wear or damage over time. Recognizing these signs is crucial for timely maintenance to prevent further issues. Here are some common signs of wear or damage in planetary gearboxes:

1. Unusual Noise: Excessive noise, grinding, or whining sounds during operation can indicate worn or misaligned gear teeth. Unusual noise is often a clear indicator that something is wrong within the gearbox.

2. Increased Vibration: Excessive vibration or shaking during operation can result from misalignment, damaged bearings, or worn gears. Vibration can lead to further damage if not addressed promptly.

3. Gear Tooth Wear: Inspect gear teeth for signs of wear, pitting, or chipping. These issues can result from improper lubrication, overload, or other operational factors. Damaged gear teeth can affect the gearbox’s efficiency and performance.

4. Oil Leakage: Leakage of gearbox oil or lubricant can indicate a faulty seal or gasket. Oil leakage not only leads to reduced lubrication but can also cause environmental contamination and further damage to the gearbox components.

5. Temperature Increase: A significant rise in operating temperature can suggest increased friction due to wear or inadequate lubrication. Monitoring temperature changes can help identify potential issues early.

6. Reduced Efficiency: If you notice a decrease in performance, such as decreased torque output or inconsistent speed, it could indicate internal damage to the gearbox components.

7. Abnormal Gear Ratios: If the output speed or torque does not match the expected gear ratio, it could be due to gear wear, misalignment, or other issues affecting the gear engagement.

8. Frequent Maintenance Intervals: If you find that you need to service the gearbox more frequently than usual, it could be a sign that the gearbox is experiencing excessive wear or damage.

When to Service: If any of the above signs are observed, it’s important to address them promptly. Regular maintenance checks are also recommended to detect potential issues early and prevent more significant problems. Scheduled maintenance should include inspections, lubrication checks, and replacement of worn or damaged components.

It’s advisable to consult the gearbox manufacturer’s guidelines for recommended service intervals and practices. Regular maintenance can extend the lifespan of the planetary gearbox and ensure it continues to operate efficiently and reliably.

planetary gearbox

Impact of Gear Ratio on Output Speed and Torque in Planetary Gearboxes

The gear ratio of a planetary gearbox has a significant effect on both the output speed and torque of the system. The gear ratio is defined as the ratio of the number of teeth on the driven gear (output) to the number of teeth on the driving gear (input).

1. Output Speed: The gear ratio determines the relationship between the input and output speeds of the gearbox. A higher gear ratio (more teeth on the output gear) results in a lower output speed compared to the input speed. Conversely, a lower gear ratio (fewer teeth on the output gear) leads to a higher output speed relative to the input speed.

2. Output Torque: The gear ratio also affects the output torque of the gearbox. An increase in gear ratio amplifies the torque delivered at the output, making it higher than the input torque. Conversely, a decrease in gear ratio reduces the output torque relative to the input torque.

The relationship between gear ratio, output speed, and output torque is inversely proportional. This means that as the gear ratio increases and output speed decreases, the output torque proportionally increases. Conversely, as the gear ratio decreases and output speed increases, the output torque proportionally decreases.

It’s important to note that the gear ratio selection in a planetary gearbox involves trade-offs between output speed and torque. Engineers choose a gear ratio that aligns with the specific application’s requirements, considering factors such as desired speed, torque, and efficiency.

China factory GS20 swing reducer/rotary planetary gearbox/for XCMG370 Liugong936 excavator spare parts   gearbox assembly	China factory GS20 swing reducer/rotary planetary gearbox/for XCMG370 Liugong936 excavator spare parts   gearbox assembly
editor by CX 2024-05-13