Product Description
Densen customized hydraulic coupling,rubber hydraulic coupling, hydraulic drive coupling
| Product Name | Hydraulic coupling,rubber hydraulic coupling, hydraulic drive coupling |
| DN mm | 12~160mm |
| Rated Torque | 25~25000 N·m |
| Allowable speed | 15300~1500 N·m |
| Material | 35CrMo/ZG270/45# steel/Aluminum alloy |
| Application | Widely used in metallurgy, mining, engineering and other fields. |
Product show
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
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
FAQQ1. 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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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.
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.
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 2024-04-11
