China wholesaler CHINAMFG Customized Roller Chain Coupling, Chain Coupling for Chain Mortising Machine

Product Description

Densen customized roller chain coupling,chain coupling for chain mortising machine

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Product Name Densen customized roller chain coupling,chain coupling for chain mortising machine
DN mm 16~190mm
Rated Torque 40~25000 N·m
Allowable speed 4500~200 kN·m
Material 45#steel
Application Widely used in metallurgy, mining, engineering and other fields.

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Equipment

 

Application Case

Typical case of diaphragm coupling applied to variable frequency speed control equipment

JMB type coupling is applied to HangZhou Oilfield Thermal Power Plant

According to the requirements of HangZhou Electric Power Corporation, HangZhou Oilfield Thermal Power Plant should dynamically adjust the power generation according to the load of the power grid and market demand, and carry out the transformation of the frequency converter and the suction fan. The motor was originally a 1600KW, 730RPM non-frequency variable speed motor matched by HangZhou Motor Factory. The speed control mode after changing the frequency is manual control. Press the button speed to increase 10RPM or drop 10RPM. The coupling is still the original elastic decoupling coupling, and the elastic de-coupling coupling after frequency conversion is frequently damaged, which directly affects the normal power generation.

It is found through analysis that in the process of frequency conversion speed regulation, the pin of the coupling can not bear the inertia of the speed regulation process (the diameter of the fan impeller is 3.3 meters) and is cut off, which has great damage to the motor and the fan.

Later, they switched to the JMB460 double-diaphragm wheel-type coupling of our factory (patent number: ZL.99246247.9). After 1 hour of destructive experiment and more than 1 year of operation test, the equipment is running very well, and there is no Replace the diaphragm. 12 units have been rebuilt and the operation is in good condition.

 

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chain coupling

Can chain couplings accommodate axial misalignment?

Chain couplings are primarily designed to accommodate angular misalignment between the connected shafts. However, they have limited ability to handle axial misalignment, which refers to the situation where the two shafts are not perfectly aligned along their common axis.

Unlike some other types of couplings, such as flexible beam or disc couplings, chain couplings are not specifically designed to handle significant axial misalignment. The primary function of a chain coupling is to transmit torque between the shafts while allowing for some degree of angular displacement.

While chain couplings can tolerate a small amount of axial misalignment, excessive axial displacement can lead to various issues. It can cause increased stress on the coupling components, such as the roller chain, sprockets, and connecting pins, leading to accelerated wear and potential failure. Additionally, excessive axial misalignment can result in decreased power transmission efficiency and increased vibration and noise during operation.

If significant axial misalignment is anticipated in an application, it is generally recommended to consider alternative coupling options that are specifically designed to handle axial misalignment, such as double-flex or flexible beam couplings. These couplings have greater flexibility and can better accommodate axial displacement without compromising performance and reliability.

It is important to consult the manufacturer’s specifications and guidelines for the specific chain coupling being used to understand its limitations regarding axial misalignment. If axial misalignment is unavoidable, it may be necessary to implement additional measures, such as shaft guides or spacers, to minimize the impact of misalignment on the chain coupling and the connected machinery or equipment.

In summary, while chain couplings can tolerate a certain degree of axial misalignment, their primary function is to accommodate angular misalignment. Excessive axial misalignment should be avoided, and alternative coupling options should be considered if significant axial displacement is expected in an application.

chain coupling

Can chain couplings accommodate angular misalignment?

Yes, chain couplings are designed to accommodate a certain degree of angular misalignment between the connected shafts. Angular misalignment refers to the situation where the axes of the two shafts are not perfectly aligned and form an angle with each other.

Chain couplings are flexible in nature, and their design allows for some degree of angular displacement. The flexibility is primarily provided by the roller chain, which can bend and adjust to a certain extent to accommodate the misalignment. This flexibility helps to reduce the stress on the coupling components and allows for smoother operation even in the presence of angular misalignment.

However, it is important to note that chain couplings have limitations in terms of angular misalignment. Excessive angular misalignment beyond the specified limits can lead to increased stress, accelerated wear, and potential coupling failure. The manufacturer’s specifications and guidelines should be followed to ensure that the angular misalignment remains within the acceptable range for the specific chain coupling being used.

Regular inspection and maintenance of the chain coupling are also essential to identify and address any misalignment issues. If significant angular misalignment is detected, corrective measures should be taken, such as realigning the shafts or considering alternative coupling options that are better suited for the specific misalignment requirements.

It is worth mentioning that chain couplings are more tolerant of angular misalignment compared to some other types of couplings, such as rigid or gear couplings. However, it is still important to strive for proper alignment during installation and minimize any excessive misalignment to ensure optimal performance, reliability, and longevity of the chain coupling and the connected machinery or equipment.

chain coupling

What are the disadvantages of chain couplings?

  • Backlash: Chain couplings can exhibit a certain degree of backlash or play due to the clearances between the chain rollers and the sprocket teeth. This can result in reduced precision and accuracy in applications where precise motion control is required.

  • Noise and Vibration: The engagement between the chain and sprockets can generate noise and vibration during operation. This can be problematic in applications where noise reduction is important or where excessive vibration can affect the performance or integrity of the machinery.

  • Maintenance Requirements: While chain couplings are relatively easy to maintain, they still require regular attention. Lubrication of the chain and sprockets is essential to reduce wear and friction. Additionally, periodic inspection and adjustment of chain tension are necessary to ensure proper operation. Neglecting maintenance tasks can lead to premature wear, decreased efficiency, and potential coupling failure.

  • Space and Weight: Chain couplings occupy a certain amount of space due to the presence of sprockets and the length of the chain. In applications with space constraints, the size of the coupling may limit its usability. Additionally, the weight of the coupling components can be a consideration in applications where weight reduction is important.

  • Limitations in High-Speed Applications: Chain couplings may have limitations in high-speed applications. At high rotational speeds, the centrifugal forces acting on the chain and sprockets can increase, potentially causing stress and reducing the efficiency of the coupling. In such cases, alternative coupling designs, such as gear or flexible shaft couplings, may be more suitable.

  • Wear and Service Life: Like any mechanical component, chain couplings are subject to wear over time. The chain and sprockets can experience gradual wear and elongation, requiring eventual replacement. The service life of a chain coupling depends on factors such as the operating conditions, maintenance practices, and the quality of the components used.

While chain couplings offer several advantages, it is important to consider these disadvantages and evaluate their impact based on the specific application requirements. Proper maintenance, periodic inspection, and careful consideration of design factors can help mitigate these disadvantages and ensure optimal performance and longevity of the chain coupling.

China wholesaler CHINAMFG Customized Roller Chain Coupling, Chain Coupling for Chain Mortising Machine  China wholesaler CHINAMFG Customized Roller Chain Coupling, Chain Coupling for Chain Mortising Machine
editor by CX 2024-02-17