China Best Sales CHINAMFG Customized Fluid Coupling, Hydraulic Couplings fluid drive coupling

Product Description

Densen Customized  Fluid Coupling, Hydraulic Couplings

Product Name Densen customized adjust speed fluid coupling,hydraulic flexible fluid couplings,yot fluid coupling
DN mm 225~1312mm
Rated Torque 2000~11950000N·m
Allowable speed 1500~3000 RPM
Material 35CrMo/ZG270/45# steel/Aluminum alloy
Application Widely used in metallurgy, mining, engineering and other fields.

 

 

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Company Information

Equipment

 

 

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.

 

Other Application Case

 

Spare parts

 

Packaging & Shipping

 

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fluid drive coupling

How do fluid drive couplings contribute to reducing shocks and vibrations in mechanical systems?

Fluid drive couplings play a significant role in reducing shocks and vibrations in mechanical systems by absorbing and dampening undesirable dynamic forces. The unique design and operating principle of fluid drive couplings allow them to mitigate the impact of sudden changes in load or operating conditions.

Here are the ways in which fluid drive couplings contribute to shock and vibration reduction:

  • Torque Dampening: Fluid drive couplings act as torque dampeners, reducing the rapid transmission of torque fluctuations from the driving to the driven element. When there is a sudden change in the torque demand, the hydraulic fluid in the coupling absorbs and dissipates the excess energy, preventing sudden jerks and shocks from propagating through the system.
  • Flexible Coupling: Fluid drive couplings provide flexibility in the power transmission system. This flexibility allows the coupling to absorb misalignments and compensate for small angular or axial deviations between the driving and driven shafts. As a result, vibrations caused by misalignment are minimized, leading to smoother operation.
  • Resonance Damping: Fluid drive couplings can help dampen vibrations caused by resonance in mechanical systems. Resonance occurs when the system’s natural frequency matches the excitation frequency, leading to excessive vibrations. The damping effect of the hydraulic fluid helps reduce the amplitude of the vibrations, preventing potential damage to the system.
  • Overload Protection: In scenarios of sudden overloads or shock loads, fluid drive couplings can slip to protect the connected machinery from excessive stresses. This slip feature acts as a safety mechanism, preventing damage to the equipment and reducing the impact of the shock load on the system.
  • No Metal-to-Metal Contact: Unlike some mechanical couplings, fluid drive couplings have no metal-to-metal contact between the driving and driven elements. The hydraulic fluid acts as a lubricant and cushion, reducing friction and wear, which can generate vibrations and noise in mechanical systems.
  • Viscous Damping: The hydraulic fluid in the coupling provides viscous damping, dissipating energy as heat when the coupling experiences vibrations. This viscous damping effect helps reduce the amplitude and duration of mechanical vibrations.

By minimizing shocks and vibrations, fluid drive couplings improve the overall performance and reliability of mechanical systems. The reduction in dynamic forces helps decrease wear and tear on system components, extending their service life and reducing maintenance requirements.

It is essential to select the appropriate fluid drive coupling based on the specific application’s requirements to ensure optimal shock and vibration reduction. Regular maintenance and monitoring of the coupling’s condition also help maintain its effectiveness in dampening shocks and vibrations over time.

fluid drive coupling

Can Fluid Drive Couplings Be Retrofitted Into Existing Systems to Improve Performance?

Yes, fluid drive couplings can be retrofitted into existing systems to improve performance and achieve various benefits. Fluid drive couplings, also known as hydraulic couplings, hydrodynamic couplings, or fluid couplings, are highly versatile and can be used in a wide range of applications.

Retrofitting a fluid drive coupling into an existing system offers several advantages:

  • Reduced Shock Loads: Fluid drive couplings have the ability to cushion shock loads and dampen torsional vibrations. By retrofitting a fluid coupling, the system can experience smoother starts and stops, reducing stress on the connected equipment and improving overall system reliability.
  • Overload Protection: Fluid couplings act as torque limiters, providing protection against sudden torque spikes and overloads. This helps safeguard sensitive machinery and prevents damage to the system during unexpected events.
  • Energy Savings: Fluid drive couplings allow for gradual engagement, which reduces power peaks during starting and stopping operations. This leads to energy savings, especially in applications where frequent starts and stops are required.
  • Flexible Power Transmission: Fluid couplings can accommodate slight misalignments between the driving and driven shafts, making them suitable for retrofitting into systems with existing misalignment issues.
  • Increased System Lifespan: By reducing mechanical stresses and wear on the connected equipment, fluid drive couplings can extend the overall lifespan of the system, leading to lower maintenance costs and increased productivity.
  • Smooth and Quiet Operation: Fluid drive couplings provide smooth and quiet power transmission, reducing noise levels and enhancing the comfort of operators and personnel working near the equipment.

When retrofitting a fluid drive coupling, it is essential to consider factors such as the specific application requirements, the torque and speed characteristics of the existing system, and the compatibility of the coupling with the connected equipment. Proper alignment and installation are also crucial to ensure optimal performance and longevity.

Overall, retrofitting fluid drive couplings into existing systems can be a cost-effective and beneficial solution to enhance performance, improve efficiency, and protect valuable machinery in various industrial applications.

fluid drive coupling

What are the key design considerations when using fluid drive couplings in power transmission systems?

When incorporating fluid drive couplings into power transmission systems, several key design considerations should be taken into account to ensure efficient and reliable operation. These considerations include:

  • Torque and Power Ratings: Determine the required torque and power ratings of the fluid drive coupling to match the demands of the power transmission system. The coupling should be capable of handling the maximum torque and power output without exceeding its capacity.
  • Speed Range: Evaluate the speed range of the power transmission system and ensure that the selected fluid drive coupling can operate effectively across this range. Consider the maximum and minimum speeds the coupling can handle to avoid operational limitations.
  • Fluid Type and Viscosity: Select the appropriate hydraulic fluid type and viscosity based on the operating conditions, temperature range, and load requirements of the power transmission system. The fluid should maintain its properties within the system’s temperature and pressure limits.
  • Slip Control: Consider whether slip control is necessary for the application. Some systems may require controlled slip to protect against sudden overloads or to enable smoother start-ups.
  • Environmental Conditions: Evaluate the environmental factors that may impact the fluid drive coupling’s performance, such as temperature variations, humidity, and the presence of contaminants. Choose a coupling with suitable sealing and protection against external elements.
  • Overload Protection: If the power transmission system is susceptible to overloads or shock loads, select a fluid drive coupling that offers effective overload protection to prevent damage to the system components.
  • Space Constraints: Consider the available space for installing the fluid drive coupling. Some couplings may have specific dimensional requirements that need to be accommodated within the system design.
  • Misalignment Tolerance: Assess the potential misalignment between the driving and driven shafts and choose a fluid drive coupling that can tolerate the expected misalignment to prevent excessive wear and failure.
  • Mounting and Alignment: Ensure proper mounting and alignment of the fluid drive coupling within the power transmission system. Correct alignment is crucial to prevent premature wear and ensure efficient power transfer.
  • Application Specifics: Consider the unique requirements of the power transmission system, such as start-up frequency, duty cycle, and load variations. These specifics may influence the choice of fluid drive coupling type and configuration.

Properly addressing these design considerations will result in an optimized power transmission system with a fluid drive coupling that meets the performance, safety, and efficiency requirements of the application. Collaboration with experienced fluid power engineers and coupling manufacturers is beneficial in selecting the most suitable fluid drive coupling and ensuring its proper integration into the power transmission system.

Regular maintenance and monitoring of the fluid drive coupling’s performance are essential to identify any potential issues early and ensure the continued reliable operation of the power transmission system.

China Best Sales CHINAMFG Customized Fluid Coupling, Hydraulic Couplings     fluid drive couplingChina Best Sales CHINAMFG Customized Fluid Coupling, Hydraulic Couplings     fluid drive coupling
editor by CX 2024-02-18

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Our Service
1. Installation & adjustment
After the equipment are arrived at the customer’s site, the customer is responsible for unpacking and arranging the equipment according to the placement drawing; and does under our install-adjust technicians’ guidance. Costs of the staff are decided at last.
2. Training
1)  We are responsible for offering the technical training to user. The training content includes the structure and maintenance of the equipment, control and operation of the equipment. Through training, users’technical staff can grasp and the skill of operation and maintenance proficiently, and deal with the general troubles in time. We will appoint qualified technical staff for the guidance.
2)  The buyer can send staff to our company for learning.
3. Quality assurance
1)  We guarantee the goods offered are brand-new, not used, with latest design and suitable material made, and we guarantee the specification of the equipment is consonance with the contract.
2)  We guarantee the line achieve product technical performance indicators within 5 days after feeding operation through the correct guidance of the installation and commissioning.
3)  We are responsible for the fault and damage of the production line caused by our design, technology, manufacture, installation, adjustment and material defect etc. that all belong to our responsibility.
4)  The warranty period is 12 months after acceptance check of the production line. If there is any different between the furnished equipment in the customer’s factory and the equipment concerned in the contract, the users have the right to pass the inspection book to the legal department to claim for compensation to our company within goods warranty period.

Due to our sincerity in offering best service to our clients, understanding of your needs and overriding sense of responsibility toward filling ordering requirements, we have obtained the trust of buyers worldwide. Having accumulated precious experience in cooperating with foreign customers, our products are selling well in the American, European, South American and Asian markets. Our products are manufactured by modern computerized machinery and equipment. Meanwhile, our products are manufactured according to high quality standards, and complying with the international advanced standard criteria.

With many years’ experience in this line, we will be trusted by our advantages in competitive price, one-time delivery, prompt response, on-hand engineering support and good after-sales services.

Additionally, all our production procedures are in compliance with ISO9001 standards. We also can design and make non-standard products to meet customers’ special requirements. Quality and credit are the bases that make a corporation alive. We will provide best services and high quality products with all sincerity. If you need any information or samples, please contact us and you will have our soon reply.

FAQ:
Q1: Are you trading company or manufacturer ?
A: We are factory.


Q2: How long is your delivery time and shipment?
1.Sample Lead-times: generally 10 workdays.
2.Production Lead-times: 20-40 workdays after getting your deposit.

Q3. What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery.

Q4: What is your advantages?
1. Manufacturer,the most competitive price and good quality.
2. Perfect technical engineers give you the best support.
3. OEM is available.
4. Rich stock and quick delivery.

Q5. If you can’t find the product on our website,what do you next?
Please send us inquiry with product pictures and drawings by email or other ways and we’ll check.