Product Description
Densen customized fluid coupling for Rolling mill,Conveyor hydraulic coupling,flexible coupling for construction machiner
| Product Name | Fluid coupling for Rolling mill,Conveyor hydraulic coupling,flexible coupling for construction machinery |
| DN mm | 16~190mm |
| Rated Torque | 40~25000 N·m |
| Allowable speed | 4500~200 kN·m |
| Material | 45#steel,aluminum |
| Application | Widely used in metallurgy, mining, engineering and other fields. |
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Company Information
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.
Other Application Case
Spare parts
Packaging & Shipping
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Why Choose Us
1. One stop service:
We have 5 own factories and 50+ sub-contractors located in different areas of China to offer you one-stop manufacturing and purchasing services to help you save time and reduce procurement cost.
2. Your eyes in China:
Our commitment to quality permeates from quoting, scheduling, production, inspection to deliver into your warehouse, our QC team will remark the errors if has on QC documents for your checking before delivery as your 3rd party.
3. Your R&Dconsultant:
With professional engineers team and 29 years manufacture experience ,we would help you work out problems during new parts’ development, optimize design and recommend the most cost-effective solution.
4. Your Emergency Solver:
With continued grown factories team and our QC teams located in different areas, if customers need to expedite the delivery, we would be able to adopt another factory to produce together immediately.
5. Quality Guaranty:
No matter how long time the products delivered, we are responsible for the quality. In case the products be rejected, we would replace them or return fund according to your demand without hesitation
FAQ Q1. Are you a manufacturer or a trader?
Manufacture, we have 5 own foundries, 4 in ZheJiang Province, 1 in ZHangZhoug Province
Q2. Do you have MOQ request?
1 pcs per order is ok with us , unless material is seldom used.
Q3. If I only have a sample,without drawings, can you quote then manufacture for me?
Just send us the sample, we would have the sample simulated and measured by professional equipment then issue formal drawings for
you , at the same time, we could help you optimize the design according to your demand and related processes’ feasibility.
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What are the maintenance requirements for fluid drive couplings to ensure optimal performance?
Proper maintenance is crucial to ensure the optimal performance and extended service life of fluid drive couplings. Regular maintenance practices help identify and address potential issues early, preventing costly breakdowns and ensuring the efficiency of power transmission systems. The maintenance requirements for fluid drive couplings include:
- Fluid Level Check: Regularly check the hydraulic fluid level in the coupling. Ensure that the fluid level is within the manufacturer’s recommended range. Low fluid levels can lead to decreased torque transmission and affect the coupling’s performance.
- Fluid Quality: Monitor the condition of the hydraulic fluid regularly. Contaminated or degraded fluid can adversely impact the coupling’s performance. Replace the fluid as per the manufacturer’s guidelines or if signs of contamination are observed.
- Seals and Gaskets: Inspect the seals and gaskets for signs of wear, leaks, or damage. Faulty seals can lead to fluid leakage, reducing the coupling’s efficiency and potentially causing damage to other components in the system.
- Alignment Check: Periodically check the alignment of the driving and driven shafts. Misalignment can result in increased wear and reduced performance of the fluid drive coupling. Proper alignment ensures optimal torque transmission and prevents premature failure.
- Overload Protection: Test the slip mechanism to ensure it is functioning correctly. The slip mechanism should engage during overload conditions to protect the coupling and connected machinery from excessive stresses.
- Coupling Bolts: Inspect and tighten the coupling bolts as per the manufacturer’s recommendations. Loose bolts can result in misalignment and reduced coupling efficiency.
- Lubrication: Some fluid drive couplings may have specific lubrication requirements. Follow the manufacturer’s guidelines for lubricating the coupling components, if applicable.
- Temperature Monitoring: Monitor the operating temperature of the fluid drive coupling. Excessive heat can impact the hydraulic fluid’s viscosity and degrade the coupling’s performance.
- Periodic Inspection: Conduct regular visual and functional inspections of the fluid drive coupling. Look for any signs of abnormal wear, damage, or unusual noises during operation.
It is essential to refer to the manufacturer’s maintenance guidelines and recommendations specific to the fluid drive coupling model. Adhering to the prescribed maintenance schedule and procedures ensures that the coupling remains in optimal condition and delivers reliable performance over its operational life.
By following these maintenance practices, users can minimize downtime, avoid costly repairs, and ensure the fluid drive coupling continues to contribute to the efficient and safe operation of the power transmission system.
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.
What are the different types of fluid drive couplings used in various industrial applications?
Fluid drive couplings come in various types, each designed to suit specific industrial applications and power transmission requirements. Here are some of the different types of fluid drive couplings commonly used in various industries:
- Constant-Fill Fluid Couplings: Constant-fill fluid couplings have a fixed amount of hydraulic fluid inside the casing. These couplings offer smooth acceleration and deceleration and provide torque amplification during start-up. They are often used in applications requiring consistent speed regulation and overload protection, such as conveyor systems and crushers.
- Variable-Fill Fluid Couplings: Variable-fill fluid couplings allow manual adjustment of the hydraulic fluid level within the casing. By changing the fill level, the coupling can vary the amount of slip between the driving and driven shafts, enabling precise control over the output speed. These couplings are suitable for applications that require speed control, such as mixers, agitators, and cooling tower fans.
- Delayed-Fill Fluid Couplings: Delayed-fill fluid couplings have a time-delayed filling mechanism that controls the fluid transfer between the driving and driven impellers. They are used in applications where a gradual start-up is necessary to reduce shock loads, such as in large centrifugal pumps and compressors.
- Hydrodynamic Torque Converters: Hydrodynamic torque converters are a type of fluid coupling with an additional stator element. The stator redirects the fluid flow, improving the efficiency of power transmission and providing a higher torque output. These couplings are commonly used in automotive applications, such as automatic transmissions in vehicles.
- Magnetic Fluid Couplings: Magnetic fluid couplings use magnetic fields to transfer torque without physical contact between the driving and driven impellers. These couplings offer a hermetically sealed design, making them suitable for applications where preventing fluid leakage is critical, such as in pumps and marine propulsion systems.
- Constant-Fill Fluid Couplings with Lock-Up: These couplings combine the characteristics of a constant-fill fluid coupling with the ability to lock-up the driving and driven impellers, creating a solid mechanical connection when required. They are commonly used in industrial drivetrains to improve overall efficiency and reduce energy losses.
- Fluid Couplings with Integrated Clutches: These couplings incorporate both the hydrodynamic power transmission of fluid couplings and the clutching action of mechanical clutches. They provide smooth start-up and can handle high torque loads, making them suitable for heavy-duty applications like metal forming presses and mining equipment.
Each type of fluid drive coupling offers unique advantages and is selected based on the specific requirements of the industrial application. When choosing a fluid drive coupling, factors such as torque capacity, speed range, slip control, and efficiency should be carefully considered to ensure optimal performance and reliability in the intended application.
It’s crucial to consult with experienced fluid power engineers or coupling manufacturers to determine the most suitable type of fluid drive coupling for a particular industrial application. Proper selection and installation of the right fluid drive coupling can significantly enhance the efficiency, safety, and longevity of the machinery or equipment.
editor by CX 2024-02-14
