Product Description
Product introduction
| Gear model | Customized gear accoding to customers sample or drawing |
| Processing machine | CNC machine |
| Material | 20CrMnTi/ 20CrMnMo/ 42CrMo/ 45#steel/ 40Cr/ 20CrNi2MoA |
| Heat treattment | Carburizing and quenching/ Tempering/ Nitriding/ Carbonitriding/ Induction hardening |
| Hardness | 58-62HRC |
| Qaulity standerd | GB/ DIN/ JIS/ AGMA |
| Accuracy class | 5-8 class |
| Shipping | Sea shipping/ Air shipping/ Express |
Factory introduction
ZheJiang Yingxing Gear Co., LTD is set product development, production and sales of specialized enterprises, the company was founded in 2007, is located in Xihu (West Lake) Dis. Bridge River, 50 kilometers from the provincial capital HangZhou city, convenient transportation.
The company has modern professional production workshop covers an area of 30,000 square meters, 120 employees, including professional and technical staff of 30 people. We buy the advanced processing center equipment from Germany and American. We produce the gear for reducer,agricultural machinery, construction machinery, oil drilling rig,and other aspects of the production. The company has been appraised as ZheJiang quality products, corporate credit quality units. The company has offices in HangZhou.
Our products sell well in China and exported to Europe, the Americas, the Middle East, Southeast Asia and other countries. My company adhered to the “good faith, winning by quality, first-class service will be presented to our customers” for the purpose, we are willing to be honest with you, and work together for a better tomorrow.
Factory pictures and cerfitication
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| Application: | Machinery, Marine, Agricultural Machinery, Drilling Machinery |
|---|---|
| Hardness: | Hardened Tooth Surface |
| Gear Position: | External Gear |
| Manufacturing Method: | Rolling Gear |
| Toothed Portion Shape: | Bevel Wheel |
| Material: | 20crmnti |
| Customization: |
Available
| Customized Request |
|---|
How do spiral gears handle variations in tooth engagement during operation?
Spiral gears are designed to handle variations in tooth engagement during operation effectively. The unique helical tooth arrangement of spiral gears allows them to accommodate these variations and provide several benefits. Here’s how spiral gears handle variations in tooth engagement:
- Gradual Engagement: One of the key advantages of spiral gears is their ability to achieve gradual tooth engagement. As the gears rotate, the helical shape of the teeth allows them to come into contact gradually, starting from one end of the gear to the other. This gradual engagement minimizes the impact and shock that would occur with sudden full tooth contact in other gear types. It results in smoother and quieter operation, reducing noise, vibrations, and stress on the gear system.
- Increased Tooth Contact Area: Spiral gears provide a larger tooth contact area compared to straight-cut or spur gears. The helical tooth profile extends the contact length along the gear face, distributing the load over multiple teeth at any given moment. This increased contact area enables spiral gears to handle higher loads and transmit torque more efficiently.
- Load Sharing: Due to the helical arrangement, spiral gears naturally distribute the load across multiple teeth. This load-sharing characteristic helps to minimize tooth wear and fatigue. As the gears rotate, different teeth come into contact, ensuring that the load is distributed evenly. This load sharing capability enhances the gear system’s durability and extends its service life, particularly in applications with fluctuating loads.
- Reduction of Side Thrust: Spiral gears generate an axial thrust force during operation. However, by using pairs of spiral gears with opposite helix angles, this side thrust force can be greatly reduced or even eliminated. When paired gears with opposite helix angles mesh together, the axial thrust forces cancel each other out. This eliminates the need for additional thrust bearings or complex gear arrangements to counteract the axial forces, simplifying the gear system design.
- Improved Lubrication: The helical tooth profile of spiral gears promotes better lubrication. The continuous sliding motion between the teeth creates a pumping action that helps distribute lubricant along the tooth surfaces. This improved lubrication reduces friction, heat generation, and wear, enhancing the overall efficiency and longevity of the gear system.
These features of spiral gears—gradual engagement, increased tooth contact area, load sharing, reduction of side thrust, and improved lubrication—make them highly effective in handling variations in tooth engagement during operation. Spiral gears are commonly used in various applications such as automotive transmissions, industrial machinery, and power generation systems, where smooth and reliable power transmission is crucial.
How do you calculate the gear ratio in a spiral gear system?
The gear ratio in a spiral gear system can be calculated by comparing the number of teeth on the driving gear (pinion) to the number of teeth on the driven gear (gear). The gear ratio represents the ratio of the angular velocity (speed) of the driving gear to the angular velocity of the driven gear. Here’s the formula to calculate the gear ratio:
Gear Ratio = Number of Teeth on Driven Gear / Number of Teeth on Driving Gear
For example, consider a spiral gear system where the driving gear (pinion) has 20 teeth, and the driven gear (gear) has 40 teeth. The gear ratio can be calculated as follows:
Gear Ratio = 40 / 20 = 2
In this example, the gear ratio is 2, which means the driven gear will rotate at half the speed of the driving gear. This calculation assumes that the gears have the same module (gear size) and that there are no additional gear stages in the system.
It’s important to note that the gear ratio determines the speed and torque relationship between the driving and driven gears. A gear ratio greater than 1 (e.g., 2, 3, etc.) indicates a reduction in speed and an increase in torque, while a gear ratio less than 1 (e.g., 0.5, 0.75, etc.) indicates an increase in speed and a reduction in torque.
When working with spiral gears, it’s essential to consider the helix angle and axial thrust in addition to the gear ratio to ensure proper gear design and performance.
Can you explain the advantages of using spiral gears over other gear types?
Spiral gears, also known as helical gears, offer several advantages over other gear types. These advantages stem from their unique design and characteristics. Here are some key advantages of using spiral gears:
- Smooth and Quiet Operation: The helical tooth arrangement in spiral gears enables gradual tooth engagement, resulting in smoother and quieter operation compared to straight-cut gears. The angled teeth allow for gradual contact, reducing impact and noise during gear meshing.
- High Load Capacity: Spiral gears can handle higher loads compared to straight-cut gears. The helical tooth design distributes the load over multiple teeth, increasing the load-carrying capacity and providing improved strength. This makes spiral gears well-suited for applications that require the transmission of high torque or the handling of significant loads.
- Efficient Power Transmission: Spiral gears exhibit higher efficiency compared to straight-cut gears. The helical tooth arrangement helps minimize sliding friction between the teeth, resulting in reduced power losses due to friction during gear operation. This efficiency is crucial in applications where power transmission needs to be optimized, and energy losses need to be minimized.
- Reduced Noise and Vibration: The gradual tooth engagement in spiral gears leads to reduced impact and vibration during gear meshing. This results in quieter operation, making spiral gears suitable for applications where noise reduction is important, such as in precision machinery or noise-sensitive environments.
- Axial Thrust Compensation: Spiral gears can be designed with opposite helix angles on mating gears, which helps cancel out the axial thrust generated during gear meshing. This feature eliminates the need for additional thrust bearings, simplifying the gear design and reducing complexity.
- Versatility and Adaptability: Spiral gears can be manufactured in various configurations, including spur, helical, and double helical designs. This versatility allows for their application in a wide range of machinery and systems, providing flexibility in gear design and usage.
These advantages make spiral gears a preferred choice in many applications where smooth operation, high load capacity, efficient power transmission, reduced noise, and versatility are important considerations.
editor by CX 2024-03-28