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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Comparison of Roller Chain Couplings to Other Coupling Types
Roller chain couplings offer distinct advantages and characteristics that set them apart from other coupling types, such as gear or disc couplings. Below is a comparison of roller chain couplings with these two commonly used coupling types:
- Roller Chain Couplings:
– Roller chain couplings are flexible and can accommodate misalignments, making them ideal for applications where shafts may not be perfectly aligned.
– They offer good shock absorption, which is beneficial in systems with varying loads or frequent starts and stops.
– Roller chain couplings are relatively compact and lightweight compared to other couplings, making them suitable for space-constrained installations.
– These couplings are cost-effective and provide a reliable and efficient power transmission solution.
- Gear Couplings:
– Gear couplings are capable of handling high torque and can transmit power efficiently, making them suitable for heavy-duty applications.
– They have a high level of torsional rigidity, ensuring accurate torque transmission without backlash.
– Gear couplings are generally more expensive than roller chain couplings.
– They require accurate alignment during installation, which can be challenging in some applications.
- Disc Couplings:
– Disc couplings offer high torque capacity and torsional stiffness, providing precise torque transmission and no backlash.
– They have a compact design and are often used in applications with limited space.
– Disc couplings can handle misalignment to some extent but may not be as forgiving as roller chain couplings.
– They are generally more expensive than roller chain couplings.
When choosing the appropriate coupling type, it is essential to consider the specific requirements of the application, such as torque, misalignment, speed, space limitations, and budget constraints. Each coupling type has its strengths, and the selection should be based on the demands of the mechanical power transmission system.
Handling Angular and Parallel Misalignments with Roller Chain Couplings
Yes, roller chain couplings are designed to accommodate both angular and parallel misalignments simultaneously. These couplings use a flexible roller chain to transmit torque between the driving and driven shafts, allowing for some degree of misalignment without causing undue stress on the coupling or connected equipment.
The roller chain’s flexible nature enables it to bend and twist slightly, accommodating small angular misalignments between the shafts. Additionally, the design of the sprockets and chain links allows for some axial movement, which addresses parallel misalignments.
It is important to note that while roller chain couplings can handle moderate misalignments, excessive misalignment should be avoided to prevent premature wear and potential coupling failure. Regular maintenance and alignment checks are crucial to ensure the coupling operates within its design limits and delivers reliable performance.
Accommodating Misalignment and Reliable Torque Transmission in Roller Chain Couplings
Roller chain couplings are designed to accommodate misalignment and provide reliable torque transmission in mechanical power transmission systems. They achieve this through the following features:
- Elongated Holes: The roller chain coupling’s hubs have elongated holes that allow for angular misalignment between the connected shafts. These holes provide flexibility and prevent excessive stress on the coupling and connected equipment.
- Roller Chain Design: The roller chain used in the coupling is a flexible and robust component that can transmit torque even in situations with slight misalignment. The design of the roller chain ensures smooth engagement and disengagement of the sprockets, reducing wear and power loss.
- Tension Adjustment: Roller chain couplings typically have an adjusting mechanism that allows for tensioning the chain. Proper tensioning is crucial for maintaining efficient torque transmission and preventing slippage.
- Single or Double Roller Chain: Some roller chain couplings come with a double roller chain design, which increases the torque capacity and allows for higher misalignment compensation.
- Torsionally Rigid Coupling: While roller chain couplings can accommodate misalignment, they still provide torsional rigidity, ensuring efficient power transmission without significant losses.
By allowing for misalignment while maintaining reliable torque transmission, roller chain couplings are well-suited for various power transmission applications, including those where slight misalignment is unavoidable or expected.
editor by CX 2024-02-01