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.
Reducing Vibrations and Ensuring Smooth Operation with Roller Chain Couplings
Roller chain couplings are designed to provide a flexible and torsionally soft connection between shafts, which helps in reducing vibrations and ensuring smooth operation in mechanical power transmission systems. Here’s how roller chain couplings contribute to achieving these benefits:
- Shock Absorption: Roller chain couplings have the ability to absorb and dampen shock loads that may occur due to sudden starts, stops, or changes in the load. This feature prevents the transmission of these shocks to connected equipment, reducing vibrations and protecting the system from mechanical damage.
- Torsional Flexibility: The flexibility of roller chain couplings allows for slight misalignments between shafts. This capability helps in accommodating minor misalignments, which might otherwise lead to increased vibrations and noise in rigid coupling systems.
- Uniform Load Distribution: Roller chain couplings distribute the transmitted torque uniformly along the chain, reducing stress concentration on specific components. This even distribution of load helps in maintaining smooth operation and prolonging the life of the coupling.
- Damping Properties: The material properties of roller chain couplings, such as the use of elastomeric or plastic elements in some designs, provide inherent damping characteristics. This damping helps in absorbing vibrations and preventing resonance, ensuring stable and smooth operation.
- Reduced Backlash: Roller chain couplings exhibit minimal backlash due to the precise fit of the chain’s teeth with the sprockets. This feature is beneficial in applications that require accurate positioning and motion control.
By reducing vibrations and ensuring smooth operation, roller chain couplings contribute to improved overall system performance, reduced wear and tear on components, and enhanced reliability in various industrial applications.
What is a Roller Chain Coupling and How Does It Function in Mechanical Power Transmission?
A roller chain coupling is a type of flexible coupling used in mechanical power transmission systems to connect two shafts and transmit torque between them. It consists of two sprockets, one on each shaft, and a roller chain that meshes with the sprockets.
The functioning of a roller chain coupling is as follows:
- Connection: The roller chain coupling is installed by placing the two sprockets on the respective shafts. The sprockets are positioned facing each other.
- Meshing: The roller chain is then looped around the sprockets, and its pins engage with the teeth of the sprockets.
- Power Transmission: When one shaft rotates, the roller chain transfers the rotational motion to the other shaft through the meshing of the chain with the sprockets.
- Torque Transfer: The torque is transmitted from one shaft to the other via the roller chain. This allows the two shafts to rotate together, providing a flexible and efficient power transmission connection.
Roller chain couplings are known for their reliability, simplicity, and ability to handle high torque loads. They are widely used in various industrial applications, including conveyor systems, pumps, mixers, and other equipment that require reliable torque transmission.
editor by CX 2024-03-18
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