China high quality Drum Tooth Structure Coupling for Rail Transit

Product Description

High-speed rail couplings

The Gear Transmission Division covers an area of more than 80,000 square meters. It has more than 350 sets of various equipment, including machining centers, turning centers, CNC lathes, precision grinding machines (CNC), CNC profile grinding machines, gear testing machines, three-coordinate testing machines, gearbox comprehensive performance test benches, well carburising furnaces, multi-purpose furnaces, nitriding furnaces, induction machines, quenching and pressing machines, etc. With a full range of equipment and a wide processing range, our company has ability to process and test internal and external gears with an external diameter of up to φ2500mm, a module of up to 45mm and an accuracy of up to AGMA 14-13 grade or DIN 3962 grade 3-4, forming an annual production capacity of nearly 60,000 gears and more than 15,000 sets of gearboxes. It has established a first-class domestic and world advanced gear transmission system industrialization base.

                  4400 Slave gear                                            Mechanical drive gear                                              HXD1C Traction gear
 
                                      

Detailed Photos

 

Company Profile

CHINAMFG Xihu (West Lake) Dis. Institute Co.,Ltd is a state-own company affiliated with CHINAMFG group. Found in 1959, it locates in HangZhou city in the great ZheJiang region.Focus on R&D of critical equipment for China railway industry, it is a specialized research institution for new material and processes for locomotive and rolling stocks, as well as a high-tech manufacturer of critical parts and components for railway transportation.Currently, it has about 3,000 employees working in 6 production sites, its revenue exceeded 700 million USD in 2571.

Rail transit equipment, automobiles and new energy vehicles, ships and marine engineering equipment, aerospace vehicles, energy-saving and environmental protection equipment, wind power generation equipment, mining machinery, robot parts, construction machinery, mechanical and electrical equipment, transmission devices, instrumentation, electronic appliances, plastics R&D, design, manufacture, sales, repair, leasing, and technical services of products, metal products and parts; Mold manufacturing, sales, repair, and technical services; Metal casting, forging, and welding; Surface treatment and heat treatment; Orbital welding Engineering construction; Product testing and testing; Professional technical and operational skills training (excluding vocational certificate training recognized by the state), technical and management consulting, conference services; Rental of self-owned houses and equipment; Self-operated and agency of various commodities and technology import and export business (except for goods and technologies that are restricted by the state or prohibited from import and export); Design and produce print advertisements, and use the company’s public publications to publish domestic advertisements. 

Certifications

 

FAQ

1. How long is the product warranty period?
A: Two years.

2, how to place an order to our company?
A: After the products you need are confirmed by both parties, our company will CHINAMFG a contract with you, and we will execute the delivery and other related matters according to the contract terms.

3. How to distribute the product?
A: We generally provide FOB prices, and the freight is borne by the buyer. If the buyer has the demand, we can also provide CIF price, our company is responsible for shipping products.

4. Settlement currency?
A: We can settle in RMB, USD and Euro.

5. Return policy?
A: In case of any problem with the product, the 2 parties shall negotiate a return or exchange according to the terms and conditions of the contract.

6. After-sales problems?
A: If there is a quality problem during the warranty period, our company will answer it to the customer within 24 hours. If the problem is more serious, our company will arrive at the customer site within a week to answer it. Products beyond the warranty period we provide maintenance services, provide paid replacement parts, provide paid customer on-site service. 

7, how to buy the fragile and consumable parts in the product?
A: Our company will make a list of vulnerable and consumable parts and provide channels for purchase.

 

 

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Comparison of Tooth Couplings with Gear and Jaw Couplings

Tooth couplings, gear couplings, and jaw couplings are all types of couplings used in mechanical systems. Here’s a comparison of tooth couplings with gear and jaw couplings:

Tooth Couplings:

• They have interlocking teeth that provide high torque transmission capacity.
• Offer excellent misalignment compensation due to the tooth design.
• Can handle angular, radial, and axial misalignment.
• Transmit torque with low backlash and high torsional stiffness.

Gear Couplings:

• Use gears to transmit torque, providing high torque capacity.
• Handle angular misalignment but are less effective with radial and axial misalignment.
• Have backlash due to the gear design, which can affect precision applications.
• Require periodic lubrication and maintenance.

Jaw Couplings:

• Use elastomeric elements (jaws) for torque transmission.
• Provide good torsional stiffness and misalignment compensation.
• Handle moderate angular and axial misalignment but limited radial misalignment.
• Are simple in design and easy to install.

Ultimately, the choice between these couplings depends on the specific requirements of the application. Tooth couplings are preferred for high torque, precision, and demanding applications that require precise torque transmission and efficient misalignment compensation. Gear couplings excel in high torque situations but may have more backlash. Jaw couplings are suitable for simpler applications with moderate misalignment and torque requirements.

Identifying Wear or Damage in Tooth Couplings

Wear or damage in a tooth coupling can lead to performance issues and potential failures. Here are some signs to watch for and methods to identify problems:

• Abnormal Noise: Unusual noise during operation, such as rattling, grinding, or clicking, can indicate misalignment or wear in the teeth.
• Increased Vibration: Excessive vibration may suggest misalignment, worn teeth, or other issues affecting coupling performance.
• Temperature Rise: If the coupling becomes unusually hot during operation, it could indicate friction due to misalignment or damaged teeth.
• Visual Inspection: Regularly inspect the coupling for signs of wear, corrosion, pitting, or chipped teeth. Use proper lighting and magnification if needed.
• Measurement: Check tooth clearances using specialized measurement tools to identify any significant deviations from specifications.
• Runout Measurement: Measure coupling runout to detect eccentricity or misalignment that could lead to premature wear.
• Alignment Check: Use laser alignment tools to ensure proper shaft alignment, preventing undue stress on the coupling teeth.
• Lubrication Analysis: Analyze the lubricant for metal particles or signs of contamination, which could result from wear and damage.

Regular inspection, monitoring operating conditions, and addressing any signs of wear or damage promptly can help extend the life of the tooth coupling and prevent unexpected failures.

Tooth Couplings: Torque Transmission and Misalignment Handling

Tooth couplings are designed to efficiently transmit torque while accommodating certain levels of misalignment between connected shafts. Here’s how they handle torque transmission and misalignment:

Torque Transmission: Tooth couplings utilize interlocking teeth on the coupling hubs to transfer torque from one shaft to another. The teeth engagement creates a strong mechanical connection that can transmit high levels of torque. The coupling’s design ensures even distribution of torque across the teeth, minimizing stress concentrations and enhancing the coupling’s overall strength.

Misalignment Handling: Tooth couplings can accommodate a limited amount of angular and axial misalignment between shafts. The interlocking teeth provide some flexibility, allowing the coupling to compensate for small angular deviations. Additionally, the teeth engagement can provide a degree of axial flexibility, enabling the coupling to handle slight axial misalignments. However, tooth couplings have lower misalignment tolerance compared to some other flexible coupling types like elastomeric couplings.

It’s important to note that excessive misalignment can lead to premature wear and reduced coupling life. Therefore, while tooth couplings offer misalignment compensation to a certain extent, proper alignment of the connected shafts is still essential to ensure optimal coupling performance and longevity.

editor by CX 2024-04-25