China OEM Slewing Planetary Reduction Reducer Swing Gear Box gearbox design

Product Description

 

Product Description

 

 

CZPT planetary reducer gearbox is designed with large torque, high start and transmission efficiency, low-speed stability,compact radial size, low noise, etc. The main devices we are making are walking reducers, lifting reducers and swing reducers.

They are widely used for vehicle cranes, crawler cranes, truck mounted cranes, marine cranes, aerial work trucks, excavators, etc.

1)Compact size

2)Low noise

3)High transmission efficiency

4)Good working condition under lower speed

5)Customized hydraulic motors
and brakes for different request

6)One Year Warranty from reception 7)Free components for replacement within warranty period
8)Professional and tailored solution for different requirements

9)Free technical support at any time

10)Customer training isavailable.

Product Parameters

 

Slewing Reducer

 

Model

 

DH12B20E

 

DH17B32E

 

DH18B39S

 

DH25B32S

 

Max. output torque

 

12000 Nm

 

16500 Nm

 

17500 Nm

 

25000 Nm

 

Ratio

 

20.9

 

31.36

 

38.82

 

31.36

 

Weight (no motor, oil, drum)

 

125 kgs

 

165 kgs

 

225 kgs

 

240 kgs

 

Modules of output gear; Modification Coefficient

 

m=8,10,12,14mm;

x=0.5

 

m=8,10,12,14mm; x=0.5

 

m=8,10,12,14mm; x=0.5

 

m=12,14,16mm; x=0.5

 

Model

 

DH29B40S

 

DH29B60S

 

DH38B100S

 

DH50B120S

 

Max. output torque

 

28500 Nm

 

29000 Nm

 

38000 Nm

 

48500 Nm

 

Ratio

 

39.43

 

60.13

 

100.75

 

120.83

 

Weight (no motor, oil, drum)

 

210-260 kgs

 

250 kgs

 

315 kgs

 

380-425 kgs

 

Modules of output gear; Modification Coefficient

 

m=12,14,16mm; x=0.5

 

m=12,14,16mm; x=0.5

 

m=12,14,16mm; x=0.5

 

m=16 or 18mm; x=0.5

 

Hydraulic motor

 

Motor interface structure can be designed with customer requirement

 

Remark

 

1. The input steering direction is opposite to the output. 2. For more ratio requirements, please consult us.
3. Io facilitate user to install and adjust backlash of slewing ring gear, reducer bearing seat can be made eccentric according to
user’s needs, and eccentricity is 2.5 mm.
4. If special transmission solution is needed, please send requirements, we can customize.

 

Packaging & Shipping

1. Packed by wooden box, fumigation-free for export and import standard.

 

2. Shipped by sea or air with customer require

 

Company Profile

FAQ

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Application: Electric Cars, Machinery, Marine, Car, Lift Equipment
Hardness: Hardened Tooth Surface
Installation: Vertical Type
Layout: Coaxial
Step: Four-Step
Ratio: Customized
Customization:
Available

|

Customized Request

planetary gearbox

Role of Planetary Gearboxes in Powertrain Systems of Electric and Hybrid Vehicles

Planetary gearboxes play a critical role in the powertrain systems of both electric and hybrid vehicles, contributing to their efficiency and performance:

Electric Motor Integration: In electric vehicles (EVs) and hybrid vehicles, planetary gearboxes are commonly used to connect the electric motor to the drivetrain. They enable torque and speed transformation, ensuring the motor’s output is suitable for the vehicle’s desired speed range and load conditions.

Torque Splitting in Hybrids: Hybrid vehicles often have both an internal combustion engine (ICE) and an electric motor. Planetary gearboxes enable torque splitting between the two power sources, optimizing their combined performance for various driving scenarios, such as electric-only mode, hybrid mode, and regenerative braking.

Regenerative Braking: Planetary gearboxes facilitate regenerative braking in electric and hybrid vehicles. They enable the electric motor to function as a generator, converting kinetic energy into electrical energy during deceleration. This energy can then be stored in the vehicle’s battery for later use.

Compact Design: Planetary gearboxes offer a compact design with a high power density, making them suitable for the limited space available in electric and hybrid vehicles. This compactness allows manufacturers to maximize interior space and accommodate battery packs, drivetrain components, and other systems.

Efficient Power Distribution: The unique arrangement of planetary gears allows for efficient power distribution and torque management. This is particularly important in electric and hybrid powertrains, where optimal power allocation between different components contributes to overall efficiency.

CVT Functionality: Some hybrid vehicles incorporate Continuously Variable Transmission (CVT) functionality using planetary gearsets. This enables seamless and efficient transitions between various gear ratios, improving the driving experience and enhancing fuel efficiency.

Performance Modes: Planetary gearboxes facilitate the implementation of different performance modes in electric and hybrid vehicles. These modes, such as “Sport” or “Eco,” adjust the power distribution and gear ratios to optimize performance or energy efficiency based on the driver’s preferences.

Reduction Gear for Electric Motors: Electric motors often operate at high speeds and require reduction gearing to match the vehicle’s requirements. Planetary gearboxes provide the necessary gear reduction while maintaining efficiency and torque output.

Efficient Torque Transfer: Planetary gearboxes ensure efficient transfer of torque from the power source to the wheels, resulting in smooth acceleration and responsive performance in electric and hybrid vehicles.

Integration with Energy Storage: Planetary gearboxes contribute to the integration of energy storage systems, such as lithium-ion batteries, by efficiently connecting the power source to the drivetrain while managing power delivery and regeneration.

In summary, planetary gearboxes are integral components of the powertrain systems in electric and hybrid vehicles. They enable efficient power distribution, torque transformation, regenerative braking, and various driving modes, contributing to the overall performance, efficiency, and sustainability of these vehicles.

planetary gearbox

Advantages of Backlash Reduction Mechanisms in Planetary Gearboxes

Backlash reduction mechanisms in planetary gearboxes offer several advantages that contribute to improved performance and precision:

Improved Positioning Accuracy: Backlash, or the play between gear teeth, can lead to positioning errors in applications where precise movement is crucial. Reduction mechanisms help minimize or eliminate this play, resulting in more accurate positioning.

Better Reversal Characteristics: Backlash can cause a delay in reversing the direction of motion. With reduction mechanisms, the reversal is smoother and more immediate, making them suitable for applications requiring quick changes in direction.

Enhanced Efficiency: Backlash can lead to energy losses and reduced efficiency due to the impacts between gear teeth. Reduction mechanisms minimize these impacts, improving overall power transmission efficiency.

Reduced Noise and Vibration: Backlash can contribute to noise and vibration in gearboxes, affecting both the equipment and the surrounding environment. By reducing backlash, the noise and vibration levels are significantly decreased.

Better Wear Protection: Backlash can accelerate wear on gear teeth, leading to premature gearbox failure. Reduction mechanisms help distribute the load more evenly across the teeth, extending the lifespan of the gearbox.

Enhanced System Stability: In applications where stability is crucial, such as robotics and automation, backlash reduction mechanisms contribute to smoother operation and reduced oscillations.

Compatibility with Precision Applications: Industries such as aerospace, medical equipment, and optics require high precision. Backlash reduction mechanisms make planetary gearboxes suitable for these applications by ensuring accurate and reliable motion.

Increased Control and Performance: In applications where control is critical, such as CNC machines and robotics, reduction mechanisms provide better control over the motion and enable finer adjustments.

Minimized Error Accumulation: In systems with multiple gear stages, backlash can accumulate, leading to larger positioning errors. Reduction mechanisms help minimize this error accumulation, maintaining accuracy throughout the system.

Overall, incorporating backlash reduction mechanisms in planetary gearboxes leads to improved accuracy, efficiency, reliability, and performance, making them essential components in precision-driven industries.

planetary gearbox

Factors to Consider When Selecting a Planetary Gearbox

Choosing the right planetary gearbox for a specific application involves considering various factors to ensure optimal performance and compatibility. Here are the key factors to keep in mind:

  • Load Requirements: Determine the torque and speed requirements of your application. Planetary gearboxes offer different torque and speed ratios, so selecting the appropriate gearbox with the right load capacity is crucial.
  • Ratio: Evaluate the gear reduction ratio needed to achieve the desired output speed and torque. Planetary gearboxes come in various gear ratios, allowing you to customize the output characteristics.
  • Efficiency: Consider the gearbox’s efficiency, as it affects energy consumption and heat generation. Higher efficiency gearboxes minimize power losses during transmission.
  • Size and Compactness: Planetary gearboxes are known for their compact size, but it’s essential to choose a size that fits within the available space while meeting performance requirements.
  • Mounting Configuration: Determine how the gearbox will be mounted in your application. Planetary gearboxes can have different mounting options, including flange, shaft, or foot mountings.
  • Input and Output Types: Select the appropriate input and output shaft configurations, such as male, female, keyed, splined, or hollow shafts, to ensure compatibility with your equipment.
  • Environment: Consider the operating environment, including temperature, humidity, dust, and potential exposure to chemicals. Choose a gearbox with appropriate seals and materials to withstand the conditions.
  • Accuracy: Some applications require precise motion control. If accuracy is essential, choose a gearbox with minimal backlash and high gear mesh quality.
  • Service Life and Reliability: Evaluate the gearbox’s expected service life and reliability based on the manufacturer’s specifications. Choose a reputable manufacturer known for producing reliable products.
  • Backlash: Backlash is the play between gears that can affect positioning accuracy. Depending on your application, you might need a gearbox with low backlash or a method to compensate for it.
  • Budget: Consider your budget constraints while balancing performance requirements. Sometimes, investing in a higher-quality gearbox upfront can lead to long-term cost savings through reduced maintenance and downtime.

By carefully considering these factors and consulting with gearbox manufacturers or experts, you can select a planetary gearbox that best meets the unique demands of your application.

China OEM Slewing Planetary Reduction Reducer Swing Gear Box   gearbox design		China OEM Slewing Planetary Reduction Reducer Swing Gear Box   gearbox design
editor by CX 2024-02-18

Planetary Gearboxes

As one of the planetary gearbox manufacturers, suppliers, and exporters of mechanical products, We offer planetary gearboxes and many other products.

Please get in touch with us for details.

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