Product Description
Densen Customized fluid hydro coupling,yox couplings,fluid drive couplings
| Product Name | Fluid coupling,constant fluid coupling,fluid coupling yox |
| 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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Are there specific torque and speed limits for different fluid drive coupling designs?
Yes, different fluid drive coupling designs have specific torque and speed limits that determine their suitable applications and performance capabilities. These limits are influenced by the coupling’s design, construction, and the type of hydraulic fluid used. Here are the key factors that contribute to torque and speed limits in fluid drive couplings:
- Coupling Size and Design: The physical size and design of the fluid drive coupling play a significant role in determining its torque capacity. Larger couplings with robust construction can generally handle higher torque loads than smaller couplings.
- Hydraulic Fluid Type: The type and viscosity of the hydraulic fluid used in the coupling affect its torque transmission capabilities. Different fluid types may have varying coefficients of friction, which impact the torque capacity of the coupling.
- Fluid Fill Level: The amount of hydraulic fluid filled in the coupling can influence its torque capacity. Proper fluid fill levels are essential for optimal coupling performance and torque transmission.
- Speed Range: The speed range of a fluid drive coupling is determined by its design and the hydraulic fluid’s properties. Some couplings may have limitations at high rotational speeds due to centrifugal forces and fluid dynamics.
- Operating Temperature: The operating temperature of the fluid drive coupling affects the hydraulic fluid’s viscosity, which in turn impacts the coupling’s torque transmission efficiency and overall performance.
- Application Specifics: The specific application requirements, such as load variations, start-up conditions, and duty cycles, also influence the torque and speed limits of the fluid drive coupling.
Manufacturers provide torque and speed ratings in their coupling specifications to guide users in selecting the appropriate coupling for a particular application. These ratings indicate the maximum torque and rotational speed that the coupling can handle safely and effectively without risking damage or performance issues.
It is essential to carefully match the torque and speed requirements of the power transmission system with the fluid drive coupling’s torque and speed limits. Operating the coupling within its specified limits ensures optimal performance, extended service life, and enhanced safety of the power transmission system.
If the application demands higher torque or speed capabilities than a standard fluid drive coupling can provide, it is advisable to consult with coupling manufacturers or fluid power engineers to explore custom-designed or specialized couplings that can meet the specific requirements.
What are the standard sizes and specifications available for fluid drive couplings?
Fluid drive couplings come in a wide range of standard sizes and specifications to accommodate various mechanical power transmission applications. The sizes and specifications of fluid drive couplings are typically determined by the manufacturer and are based on industry standards and application requirements.
Some common standard sizes and specifications for fluid drive couplings include:
- Shaft Diameter: Fluid drive couplings are available in various shaft diameter options to fit different shaft sizes of the driving and driven elements. Standard shaft diameters range from a few millimeters to several inches.
- Power Rating: The power rating of fluid drive couplings indicates the maximum amount of power (torque and speed) the coupling can efficiently transmit. Power ratings can vary significantly based on the coupling’s size and design.
- Speed Range: Fluid drive couplings are designed to operate within specific speed ranges. Some couplings are optimized for high-speed applications, while others are suitable for low-speed or variable-speed applications.
- Torque Capacity: The torque capacity of a fluid drive coupling refers to the maximum amount of torque it can transmit without slipping. Torque capacity is an essential consideration for selecting a coupling that can handle the required load and torque demands of the application.
- Operating Temperature Range: Fluid drive couplings are designed to operate within specific temperature ranges. The operating temperature range depends on the type of hydraulic fluid used and the materials used in the coupling’s construction.
- Fluid Type: The type of hydraulic fluid used in the coupling can affect its performance and compatibility with the application. Various fluids, such as oils or water-based fluids, may be used depending on the specific requirements.
- Environmental Protection: Some fluid drive couplings may offer additional environmental protection features, such as sealing mechanisms or corrosion-resistant coatings, to ensure reliable operation in harsh or challenging environments.
It is essential to carefully consider the specific requirements of the application when selecting a fluid drive coupling. Factors such as the power demands, operating speed, torque requirements, environmental conditions, and space limitations should be taken into account to ensure the chosen coupling is suitable for the intended application.
Manufacturers of fluid drive couplings can provide detailed product catalogs and specifications that assist in selecting the appropriate coupling based on the system’s needs. Consulting with coupling experts and specifying the application’s parameters will help ensure the right fluid drive coupling is chosen for optimal performance and reliability in the mechanical power transmission system.
How do you select the right fluid drive coupling for specific machinery or equipment?
Selecting the right fluid drive coupling is crucial to ensure optimal performance, efficiency, and reliability of machinery or equipment in various industrial applications. The selection process involves considering several factors to match the coupling’s characteristics with the specific requirements of the application. Here are the steps to guide you in selecting the appropriate fluid drive coupling:
- Identify Application Requirements: Understand the operational requirements of the machinery or equipment. Determine the torque and speed range, the need for speed regulation, and any specific start-up conditions or load variations.
- Type of Fluid Drive Coupling: Based on the application requirements, choose the appropriate type of fluid drive coupling. Consider constant-fill couplings for consistent speed regulation, variable-fill couplings for adjustable speed control, and delayed-fill couplings for gradual start-ups.
- Power Rating: Determine the power rating required for the machinery or equipment. Ensure the selected fluid drive coupling can handle the expected torque and power levels without exceeding its capacity.
- Speed Range: Check the speed range capability of the fluid drive coupling. It should match the operating speeds of the machinery to provide the desired performance during both low and high-speed operations.
- Slip Control: Evaluate the need for slip control in the application. Some applications may require slip to protect against sudden overloads or to provide controlled acceleration.
- Overload Protection: If overload protection is essential for the machinery or equipment, ensure the selected coupling can handle transient loads without damage.
- Fluid Compatibility: Consider the compatibility of the hydraulic fluid with the application’s operating conditions. The fluid should have suitable viscosity and temperature characteristics for efficient power transmission and to avoid fluid breakdown.
- Environmental Conditions: Evaluate the environmental conditions, such as temperature, humidity, and the presence of contaminants, to ensure the fluid drive coupling can operate reliably under such conditions.
- Space Constraints: Check the available space for coupling installation. Some fluid drive couplings may have specific space requirements that need to be accommodated.
- Budget and Cost: Consider the budget constraints and balance them with the performance requirements. Choose a fluid drive coupling that offers the best value for money without compromising on critical features.
It’s essential to work closely with experienced fluid power engineers, coupling manufacturers, or suppliers during the selection process. They can provide valuable insights and assistance in choosing the most suitable fluid drive coupling for the specific machinery or equipment application.
Additionally, consulting the coupling manufacturer’s technical specifications, performance data, and application guidelines will further aid in making an informed decision. Regular maintenance and monitoring of the fluid drive coupling’s performance are vital to ensure it continues to function optimally and extends the machinery or equipment’s lifespan.
In summary, selecting the right fluid drive coupling involves a comprehensive analysis of the machinery’s requirements, coupling characteristics, and operational conditions. By considering these factors and seeking professional advice, you can make an informed choice that enhances the efficiency and reliability of your machinery or equipment.
editor by CX 2024-01-12
