Product Description
Technical Parameter
| Housing material | HT200 high-strength cast iron(EWK37, EWK47, EWK57, EWK67, EWK77, EWK87) |
| Housing material | HT250 High strength cast iron(EWK97, EWK107, EWK127, EWK157, EWK167, EWK187) |
| Gear material | 20CrMnTi |
| Gear Surface&hardness | HRC58°-62° |
| Gear core hardness | HRC33°-78° |
| Input/Output shaft material | 40Cr |
| Gear Machining precision | Accurate grinding 6-5 grade |
| Heat treatment | Carburizing, Quenching etc |
| Efficiency | Up to 92% |
| Noise(Max) | 60-67dB |
| Installation type | Foot mounted, flange mounted |
| Output type | Solid shaft, Hollow shaft, splined hollow shaft, shrink disk |
| Bearing brand | NSK, SKF, HRB, ZWZ etc |
| Oil seal brand | NAK, KSK etc |
| Lubricant | VG220 |
| Motor | IP55, FÂ class |
| Motor shaft | 40Cr, Carburizing, Quenching etc |
| Warranty | 12months |
| Color | Blue, Grey |
Features
♦Specially designed for agitator.Â
♦Compact structure, Integrated casting housing, low noise and long service life.Â
♦High efficiency and low maintenance.Â
Technical Data
Ratio I=8.1~191, combination of EWK/EWR is up to13459
Efficiency: 94%, and combination of EWK/EWR85%.Â
Size EWK37~EWK187.Â
Industrial Application
Power Plant Equipment
Metallurgical Industry
Metal Forming Machinery
Petrochemical Industry
Mining Machine
Hoisting Machinery
Construction Industry
Environmental Protection Industry
Cable Industry
Food Machinery
Certificates
Passed ” ISO 9001 International Quality System Certificate”, “Europe CE Certificate”, ” Swiss SGS Certificate”, “High-tech enterprise certificate of ZheJiang city”, “Excellent performance management enterprise of ZheJiang city”, etc.Â
FAQ
1. Q: Can you make as per custom drawing?Â
A: Yes, we offer customized service for customers.Â
2. Q: Are you a factory or trading company?Â
A. We are manufacturer in ZheJiang China.Â
3. Q: What’s your MOQ?Â
A: One piece.Â
4. Q: What’s your production time?Â
A: 7-15 working days after receiving payment.Â
5. Q: What’s your payment terms?Â
A: T/T, 30% payment in advance, 70% balance payment should be paid before shipping.Â
6. Q: What’s your package?Â
A: In wooden box packaging.Â
ZheJiang CZPT Gear Reducer Co., Ltd., former a joint venture invested by is a ZheJiang CZPT GROUP and Well Company of America. We are professional manufacturer of the gear reducers and specialize in the gear reducers area in China for 20 years. CZPT has excellent R&D team, top-ranking production and test equipment. So we have the strong power in the developing and manufacturing the standards type as well as the customized type gear reducer for our customers. /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Application: | Machinery, Agricultural Machinery |
|---|---|
| Hardness: | Hardened Tooth Surface |
| Installation: | 90 Degree |
| Gear Shape: | Bevel Gear |
| Step: | Three-Step |
| Type: | Gear Reducer |
| Customization: |
Available
| Customized Request |
|---|
Advancements in Helical Gearbox Technology
Advancements in helical gearbox technology have led to improved performance, efficiency, and versatility. Here are some notable advancements:
- Material Innovations: The use of advanced materials, such as high-strength alloys and composites, has enhanced the durability and load-carrying capacity of helical gears. These materials also contribute to reduced weight and improved efficiency.
- Precision Manufacturing: Modern manufacturing techniques, including CNC machining and gear grinding, have enabled the production of helical gears with higher accuracy and tighter tolerances. This results in smoother operation and reduced noise levels.
- Gear Tooth Profile Optimization: Advanced computer simulations and modeling techniques allow for the optimization of gear tooth profiles. This results in better load distribution, reduced stress concentration, and improved overall gearbox efficiency.
- Lubrication and Cooling: Improved lubrication systems and cooling mechanisms help maintain optimal operating temperatures and extend the lifespan of helical gearboxes. This is particularly important for high-demand applications.
- Noise and Vibration Reduction: Innovative designs and precision manufacturing techniques have led to helical gears with reduced noise and vibration levels. This advancement is crucial for industries where noise reduction is a priority.
- Compact Design: Advancements in gear design and manufacturing have allowed for more compact and lightweight helical gearbox configurations, making them suitable for space-constrained environments.
- Integration with Electronics: Some modern helical gearboxes are designed for seamless integration with electronic control systems. This enables better monitoring, control, and optimization of gearbox performance.
- Customization: Advancements in manufacturing and design tools allow for greater customization of helical gearboxes to meet specific application requirements. This includes adapting gear ratios, sizes, and configurations.
In summary, advancements in helical gearbox technology have led to enhanced performance, durability, efficiency, and customization options. These innovations continue to make helical gearboxes a versatile and reliable choice for a wide range of industrial applications.
Impact of Thermal Expansion on Helical Gearbox Performance
Thermal expansion can significantly affect the performance of helical gearboxes due to changes in dimensions and clearances caused by temperature variations. Here’s how it impacts:
1. Misalignment: Temperature changes can lead to differential expansion of gearbox components. This can result in misalignment of gears, shafts, and bearings, leading to increased friction, noise, and reduced efficiency.
2. Lubrication: Thermal expansion can alter the clearances within the gearbox, affecting the distribution and viscosity of the lubricating oil. Inadequate lubrication due to temperature-induced changes can result in increased wear and premature failure.
3. Gear Tooth Engagement: Temperature fluctuations can cause gear teeth to expand or contract, affecting the meshing engagement and load distribution. Inconsistent gear tooth contact can lead to uneven wear and reduced gear life.
4. Bearing Performance: Bearings in helical gearboxes are sensitive to temperature changes. Excessive heat can lead to reduced bearing life, increased friction, and potential seizure, affecting overall gearbox performance.
5. Noise and Vibration: Thermal expansion can lead to changes in gear and component clearances, resulting in altered vibration patterns and increased noise levels. This can impact the comfort of the system and indicate potential issues.
6. Material Fatigue: Repeated cycles of thermal expansion and contraction can lead to material fatigue and stress accumulation, reducing the overall lifespan of gearbox components.
Managing Thermal Effects: Manufacturers design helical gearboxes with considerations for thermal expansion, using materials with low coefficients of thermal expansion and incorporating features like expansion joints or thermal isolators. Proper lubrication, monitoring temperature, and maintaining consistent operating conditions are also crucial in mitigating thermal expansion effects.
Understanding and managing the impact of thermal expansion is essential to maintain the performance, efficiency, and durability of helical gearboxes.
Limitations and Disadvantages of Helical Gear Systems
While helical gear systems offer numerous advantages, they also come with certain limitations and disadvantages:
- Axial Thrust: Helical gears generate axial thrust due to the helix angle of the teeth. This thrust can cause additional load on bearings and may require additional measures to counteract.
- Complex Manufacturing: The manufacturing process for helical gears is more complex than that of straight-toothed gears, which can lead to higher production costs.
- Axial Length: Helical gears require more axial space compared to spur gears with the same gear ratio. This can be a limitation in applications with space constraints.
- Sliding Contact: Helical gears have sliding contact between their teeth, which can result in higher friction and more heat generation compared to rolling contact gears.
- Efficiency: Although helical gears are generally efficient, their efficiency can be slightly lower than that of some other gear types, especially at high speeds.
- Complexity in Gearbox Design: The inclination of helical gear teeth introduces additional complexity in gearbox design and alignment.
- Reverse Thrust: In some cases, reverse thrust can occur when helical gears are subjected to high axial loads, leading to undesirable effects.
It’s important to consider these limitations and disadvantages when selecting gear systems for specific applications. Despite these challenges, helical gears remain a popular choice in various industries due to their benefits and overall performance characteristics.
editor by CX 2024-04-10