China Custom Epicyclic Spur Transmission Sun Planetary Gear cycle gear

Product Description

Product Description

Product Parameters

Item Spur Gear Axle Shaft
Material 4140,4340,40Cr,42Crmo,42Crmo4,20Cr,20CrMnti, 20Crmo,35Crmo
OEM NO Customize
Certification ISO/TS16949
Test Requirement Magnetic Powder Test, Hardness Test, Dimension Test
Color Paint , Natural Finish ,Machining All Around
Material Aluminum: 5000series(5052…)/6000series(6061…)/7000series(7075…)
Steel: Carbon Steel,Middle Steel,Steel Alloy,etc.
Stainess Steel: 303/304/316,etc.
Copper/Brass/Bronze/Red Copper,etc.
Plastic:ABS,PP,PC,Nylon,Delrin(POM),Bakelite,etc.
Size According to Customer’s drawing or samples
Process CNC machining,Turning,Milling,Stamping,Grinding,Welding,Wire Injection,Cutting,etc.
Tolerance ≥+/-0.03mm
Surface Treatment (Sandblast)&(Hard)&(Color)Anodizing,(Chrome,Nickel,Zinc…)Plating,Painting,Powder Coating,Polishing,Blackened,Hardened,Lasering,Engraving,etc.
File Formats ProE,SolidWorks,UG,CAD,PDF(IGS,X-T,STP,STL)
Sample Available
Packing Spline protect cover ,Wood box ,Waterproof membrane; Or per customers’ requirements.

 

Our Advantages

Why Choose US ???

1. Equipment :

Our company boasts all necessary production equipment,
including Hydraulic press machines, Japanese CNC lathe (TAKISAWA), Korean gear hobbing machine (I SNT), gear shaping machine, machining center, CNC grinder, heat treatment line etc.

2. Processing precision:

We are a professional gear & gear shafts manufacturer. Our gears are around 6-7 grade in mass production.

3. Company:

We have 90 employees, including 10 technical staffs. Covering an area of 20000 square meters.

4. Certification :

Oue company has passed ISO 14001 and TS16949

5.Sample service :

We provide free sample for confirmation and customer bears the freight charges

6.OEM service :

Having our own factory and professional technicians,we welcome OEM orders as well.We can design and produce the specific product you need according to your detail information

 

Cooperation Partner

Company Profile

Our Featured Products

 

 

 

Application: Motor, Electric Cars, Motorcycle, Machinery, Marine, Agricultural Machinery, Car
Manufacturing Method: Cast Gear
Toothed Portion Shape: Spur Gear
Material: Stainless Steel
Type: Circular Gear
Yield: 5, 000PCS / Month
Samples:
US$ 0/Piece
1 Piece(Min.Order)

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Request Sample

Customization:
Available

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Customized Request

epicyclic gear

How does an epicyclic gear mechanism work in automatic transmissions?

An epicyclic gear mechanism, also known as a planetary gear system, plays a crucial role in the operation of automatic transmissions. Here’s a detailed explanation:

An automatic transmission utilizes a combination of different clutches, bands, and an epicyclic gear system to achieve gear ratios and control the transfer of power from the engine to the wheels. The epicyclic gear mechanism consists of the following components:

1. Sun Gear:

The sun gear is a central gear placed at the center of the mechanism. It receives power from the engine and is connected to the input shaft of the transmission.

2. Planet Gears:

Several planet gears are arranged around the sun gear and mesh with both the sun gear and the ring gear. The planet gears are mounted on a carrier, which allows them to rotate around the sun gear.

3. Ring Gear:

The ring gear is the outermost gear in the mechanism and has internal teeth that engage with the planet gears. The ring gear is connected to the output shaft, which transfers power to the wheels.

Here’s how the epicyclic gear mechanism works in an automatic transmission:

1. Neutral Position:

In the neutral position, no gears are engaged, and power flows freely through the transmission without any gear reduction or multiplication. The sun gear and the ring gear remain stationary.

2. Gear Engagement:

When a specific gear is selected, hydraulic clutches and bands are used to engage and disengage various elements of the epicyclic gear mechanism. The clutches and bands selectively hold and release specific gears to achieve the desired gear ratio.

3. Gear Ratios:

The gear ratio is determined by the arrangement and engagement of the gears in the epicyclic gear system. The sun gear, planet gears, and ring gear interact to produce different gear ratios. By selectively holding or releasing specific gears using clutches and bands, different gear ratios can be achieved, allowing the transmission to adapt to different driving conditions.

4. Power Flow:

The power flows through the different elements of the epicyclic gear mechanism based on the gear ratio selected. The input power from the engine is transmitted to the sun gear. Depending on the gear ratio, power is then transferred to the planet gears and the ring gear. The output shaft, connected to the ring gear, receives the power and transfers it to the wheels, propelling the vehicle.

5. Shifting Gears:

When shifting gears, the hydraulic control system of the transmission adjusts the engagement of the clutches and bands, causing the epicyclic gear mechanism to shift to a different gear ratio. This allows for seamless and automatic gear changes without the need for manual shifting.

Overall, the epicyclic gear mechanism in automatic transmissions enables the transmission to provide different gear ratios, control power flow, and facilitate smooth gear shifting. This mechanism plays a crucial role in the efficient and automatic operation of automatic transmissions in vehicles.

epicyclic gear

How do epicyclic gears contribute to reducing gear wear and noise?

Epicyclic gears, also known as planetary gears, offer several advantages that contribute to reducing gear wear and noise. Here’s a detailed explanation:

1. Load Distribution:

The arrangement of multiple planet gears in an epicyclic gear system helps distribute the load evenly across the gear teeth. This load distribution minimizes stress concentration on individual gear teeth, reducing the risk of wear and fatigue failure. By sharing the load, epicyclic gears can handle higher torque levels while reducing the wear on specific gear teeth.

2. Increased Tooth Contact Ratio:

Epicyclic gears typically have a higher tooth contact ratio compared to other gear types, such as spur or helical gears. The tooth contact ratio refers to the number of teeth in contact at any given time. A higher tooth contact ratio results in a smoother distribution of load and reduces localized contact stresses. This helps to minimize wear and noise generation during gear operation.

3. Balanced Loading:

The design of epicyclic gears allows for balanced loading of the gear teeth. The load is distributed among multiple planet gears, and each gear tooth engages with multiple teeth on both the sun gear and the ring gear simultaneously. This balanced loading helps to minimize tooth deflection and backlash, reducing wear and noise generation.

4. Lubrication:

Epicyclic gears benefit from effective lubrication due to their design. The gear teeth are constantly immersed in the lubricant, which helps reduce friction and wear. Proper lubrication also helps to dampen vibrations and reduce noise generated during gear operation.

5. Controlled Speed and Load Transitions:

Epicyclic gears can provide smooth speed and load transitions due to their ability to change gear ratios. When transitioning from one gear ratio to another, the gear engagement can be carefully controlled to minimize sudden shocks or impacts, which can contribute to wear and noise. The controlled speed and load transitions in epicyclic gears help reduce gear wear and noise levels.

6. Precision Manufacturing:

Epicyclic gears are often manufactured with high precision to ensure accurate gear meshing and minimize manufacturing errors. Precise gear manufacturing helps to maintain proper alignment and minimize tooth misalignment, which can lead to increased wear and noise.

In summary, the load distribution, increased tooth contact ratio, balanced loading, lubrication, controlled speed and load transitions, and precision manufacturing of epicyclic gears all contribute to reducing gear wear and noise. These factors make epicyclic gears a favorable choice in applications where minimizing wear and noise levels is important.

epicyclic gear

How do epicyclic gears contribute to power transmission in machinery?

Epicyclic gears, also known as planetary gears, play a crucial role in power transmission within machinery. Here’s a detailed explanation of their contribution:

1. Gear Reduction:

Epicyclic gears allow for significant gear reduction, which is the process of reducing the rotational speed of the output shaft compared to the input shaft. By configuring the gear engagement and gear ratios, epicyclic gears can achieve high reduction ratios, enabling machinery to operate at lower speeds while maintaining high torque output.

2. Torque Multiplication:

Epicyclic gears also provide torque multiplication, which is the process of increasing the torque output compared to the torque applied at the input. By utilizing the gear ratios and gear arrangement, epicyclic gears can effectively multiply the torque, allowing machinery to generate higher rotational force for heavy-duty applications.

3. Compactness:

Epicyclic gears offer a compact design, making them ideal for applications where space is limited. The arrangement of the sun gear, planet gears, and annular gear allows for a high gear reduction or multiplication within a small footprint. This compactness is particularly advantageous in industries such as automotive, aerospace, and robotics, where efficient power transmission is required in confined spaces.

4. Versatile Gear Ratios:

Epicyclic gears provide a wide range of gear ratios, which allows machinery to adapt to different operational requirements. By selecting the appropriate combination of gear engagement and gear ratios, the speed and torque characteristics of the machinery can be tailored to specific applications. This versatility in gear ratios enhances the flexibility and performance of machinery across various industries.

5. Precise Control:

Epicyclic gears enable precise control over power transmission within machinery. The combination of rotational and orbital motion in planetary gear sets allows for smooth and precise adjustments of speed and torque. This level of control is crucial in applications that require accurate positioning, speed regulation, and responsive power transfer.

6. Multiple Functions:

Epicyclic gears offer various functions beyond power transmission. They can be utilized for directional changes, torque splitting, braking, and speed synchronization. These additional functions enhance the versatility and efficiency of machinery, allowing for complex operations and improved overall performance.

Overall, epicyclic gears contribute to power transmission in machinery by providing gear reduction, torque multiplication, compactness, versatile gear ratios, precise control, and multiple functions. Their unique design and capabilities make them a valuable component in a wide range of industries and applications.

China Custom Epicyclic Spur Transmission Sun Planetary Gear cycle gearChina Custom Epicyclic Spur Transmission Sun Planetary Gear cycle gear
editor by CX 2023-09-06