China Custom Ductile Iron Rigid or Flexible Coupling

Product Description

 

CDU Ring Coupling
Construction:This coupling consists of shell, sealing rubber ring, bolt, nut, groove.
Working pressure:1.6-4.0Mpa/6.4Mpa/10Mpa/1.0-2.5Mpa
Feature:1.easy to install, easy to disassemble, and 5-10 times higher work efficiency.2.The connection is flexible, effectively reduce mechanical vibration, and the seismic effect is excellent.3.It can rotate 360 degrees around the tube axis and adjust the wear surface easily.4.The sequence of pipe rows is arbitrary, and can be constructed head-to-head or separately.5.Wear resistance, corrosion resistance, long service life.
Applications:High pressure pipe system for underground coal mine, high pressure pipe system for industrial and mining, fire fighting pipe system for high-rise buildings.
Product standard:GB/T 8260-2008,GB/T 5135.11-2006.

 

KRJ shoulder Coupling
Construction:This coupling consists of shell, sealing rubber ring, bolt, nut, groove.
Working pressure:10Mpa/6.4Mpa/4Mpa/2.5Mpa/1.6Mpa.
Feature:Has a self-sealing effect.Reliable performance and easy installation.
Applications:Common pressure pipe system for underground coal mine, common pressure pipe system for industrial and mining, high-rise building fire pipe system.
Product standard:GB/T 8260-2008,GB/T 5135.11-2006.

 

 

KRH short  Coupling
Construction:This coupling consists of shell, sealing rubber ring, bolt, nut, groove.
Working pressure:1.0-10Mpa/1.0-2.5Mpa/1.0-1.6Mpa
Feature:Has a self-sealing effect.Reliable performance and easy installation.
Applications:Common pressure pipe system for underground coal mine, common pressure pipe system for industrial and mining, high-rise building fire pipe system.
Product standard:GB/T 8260-2008,GB/T 5135.11-2006.

 

 

Grooved Flexible High Pressure Coupling
Construction:This coupling consists of shell, sealing rubber ring, bolt, nut, groove.
Size range:33~325mm
Working pressure:10Mpa
Feature:
1.Flexible connection, strong adaptability, can provide 0~4 degrees of deflection Angle.
               2.It has the function of shock absorption and heat expansion and contraction.
               3.The joint surface can be hot-dip galvanized or plasticized.
Applications:High pressure pipe system for underground coal mine, high pressure pipe system for industrial and mining, fire fighting pipe system for high-rise buildings.
Product standard:GB/T 8260-2008,GB/T 5135.11-2006.

 

 

FAQ

Q1. What is your terms of packing?

A: Generally, we pack our goods in neutral white wearable woven bags. If you have legally registered patent, 
we can pack the goods in your branded boxes after getting your authorization letters.

Q2. What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery. We’ll show you the photos of the products and packages 
before you pay the balance.

Q3. What is your terms of delivery?
A: EXW, FOB, CFR, CIF, DDU.

Q4. How about your delivery time?
A: Generally, it will take 20 to 60 days after receiving your advance payment. The specific delivery time depends 
on the items and the quantity of your order.
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rigid coupling

How Does a Rigid Coupling Protect Connected Equipment from Shock Loads and Vibrations?

Rigid couplings play a crucial role in protecting connected equipment from shock loads and vibrations by providing a direct and rigid connection between the shafts. The design and properties of rigid couplings contribute to their ability to mitigate the impact of shock loads and vibrations in the following ways:

High Stiffness: Rigid couplings are constructed from materials with high stiffness, such as steel or aluminum. This high stiffness allows them to resist deformation and bending under load, ensuring that the coupling remains stable and maintains its shape. As a result, the shock loads and vibrations are not amplified or transferred to the connected equipment.

Immediate Torque Transmission: Rigid couplings provide immediate torque transmission between the shafts without any backlash or play. When the connected machinery experiences a sudden shock load, the rigid coupling effectively transfers the torque to the other side of the coupling without delay. This rapid and precise torque transfer prevents the shock load from causing misalignment or damaging the equipment.

Elimination of Damping: Unlike flexible couplings, which can dampen vibrations to some extent, rigid couplings do not have any damping properties. While damping can be beneficial in certain applications, it can also allow vibrations to persist, potentially affecting the performance and reliability of the connected equipment. Rigid couplings do not introduce any additional damping, ensuring that the vibrations are not prolonged.

Stable Connection: Rigid couplings create a stable and unyielding connection between the shafts, limiting any relative movement. This stability prevents the propagation of vibrations from one shaft to another, reducing the potential for resonance and vibration amplification.

Minimal Maintenance: Rigid couplings require minimal maintenance due to their simple and durable design. Unlike flexible couplings that may have wear-prone elements, rigid couplings do not have parts that need regular replacement. This reliability and low maintenance contribute to their ability to provide continuous protection against shock loads and vibrations.

In applications where shock loads and vibrations are prevalent, using a rigid coupling can help protect critical machinery and components from damage and premature failure. By providing a rigid and immediate torque transmission, rigid couplings effectively isolate the connected equipment from the harmful effects of shock loads and vibrations, ensuring smooth operation and enhanced reliability.

rigid coupling

How Does a Rigid Coupling Handle Angular, Parallel, and Axial Misalignment?

Rigid couplings are designed to provide a fixed and rigid connection between two shafts. As such, they do not have any built-in flexibility to accommodate misalignment. Therefore, when using a rigid coupling, it is essential to ensure proper shaft alignment to avoid excessive forces and premature wear on connected equipment.

Angular Misalignment: Angular misalignment occurs when the axes of the two shafts are not collinear and form an angle with each other. Rigid couplings cannot compensate for angular misalignment, and any angular misalignment should be minimized during installation. Precision alignment techniques, such as laser alignment tools, are often used to achieve accurate angular alignment.

Parallel Misalignment: Parallel misalignment, also known as offset misalignment, happens when the axes of the two shafts are parallel but have a lateral displacement from each other. Rigid couplings cannot accommodate parallel misalignment. Therefore, precise alignment is crucial to prevent binding and excessive forces on the shafts and bearings.

Axial Misalignment: Axial misalignment occurs when the two shafts have an axial (longitudinal) displacement from each other. Rigid couplings cannot address axial misalignment. To prevent thrust loads and additional stresses on bearings, it is essential to align the shafts axially during installation.

In summary, rigid couplings are unforgiving to misalignment and require precise alignment during installation. Any misalignment in a rigid coupling can lead to increased wear, premature failure of components, and reduced overall system efficiency. Therefore, it is crucial to use appropriate alignment techniques and tools to ensure optimal performance and longevity of the connected equipment.

rigid coupling

Advantages of Using Rigid Couplings in Mechanical Systems:

Rigid couplings offer several advantages when used in mechanical systems. These advantages make them a preferred choice in certain applications where precise alignment and high torque transmission are essential. Here are the key advantages of using rigid couplings:

  • 1. High Torque Transmission: Rigid couplings are designed to handle high torque and power transmission without any loss due to flexibility. They provide a direct and solid connection between shafts, allowing for efficient transfer of rotational motion.
  • 2. Precise Alignment: Rigid couplings maintain precise alignment between connected shafts. When installed correctly, they ensure that the two shafts are perfectly aligned, which is crucial for applications where accurate positioning and synchronization are required.
  • 3. Synchronous Rotation: The rigid connection provided by these couplings enables synchronous rotation of the connected shafts. This is particularly important in applications where components must move in precise coordination with each other.
  • 4. Simple Design: Rigid couplings have a straightforward design with minimal moving parts. This simplicity makes them easy to install and maintain, reducing the chances of mechanical failure.
  • 5. Cost-Effective: Compared to some other coupling types, rigid couplings are generally more cost-effective. Their simple design and robust construction contribute to their affordability.
  • 6. High Strength and Durability: Rigid couplings are typically made from strong and durable materials such as steel, stainless steel, or aluminum. These materials can withstand heavy loads and provide long-lasting performance in demanding applications.

Rigid couplings are commonly used in various industries and applications, including high-precision machinery, robotics, automation systems, precision motion control, and machine tools. They are especially beneficial in scenarios where misalignment needs to be minimized or avoided altogether.

It’s important to note that while rigid couplings offer these advantages, they are not suitable for applications where shaft misalignment or shock absorption is required. In such cases, flexible couplings or other specialized coupling types may be more appropriate.

China Custom Ductile Iron Rigid or Flexible Coupling  China Custom Ductile Iron Rigid or Flexible Coupling
editor by CX 2024-05-16


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