Product Description
YNF China Coupling High Quality Excavator Parts Rubber Coupling For DX350LC
Basic information:
| Model | DX350LC |
| Used on | Excavator, Air Compressor, Marine Machine |
| Processing | Forgine |
| Outer Packing | Carton |
| MOQ | No Limited |
| Part Name | YNF/Y&F |
| Structure | H/A/Bowex/Gear |
| Port | HangZhou |
Why choose us:
Quality Controll
Competitive price
OEM Service
Experience more than 20 years’ experience
Wholesaler We supply a wide range of spare parts for excavators
Main products:
Seal Series:
arm cylinder seal kit, Boom cylinder seal kit, Bucket cylinder seal kit, main pump seal kit, travel motor seal kit,
swing motor seal kit, control valve seal kit, center joint seal kit, track adjust seal kit, bushings,
floating seals, o-ring box, pusher, etc.
Engine parts:
cylinder heads, cylinder blocks, crankshafts, camshafts, connecting rods, water pumps, turbo chargers,
engine assys, fan blades, main bearing and connecting rod bearings, pistons, piston rings, liner kits, etc.
Hydraulic parts:
hydraulic cylinder assembly, gear pump assembly, hydraulic pump assembly, travel motor assembly, final drive assembly, swing motor assembly,
main valve assembly, service valves, gasket kits, etc.
Electric Parts:
solenoid valves, water sensors, pressure sensors, throttle motors, stop solenoid, controllers, monitors, etc.
Other Parts:
seal kits, bushings, floating seals, o-ring box, pushers, couplings, engine cushions, bearings, gears, fuel filter
oil filter, air filter, track link assy, front idler, carrier roller, hydraulic oil cooler, water tank, track link assy, etc.
Product show as below:
About us:
specialized in:
couplings, rubber mounts, gera parts, hydraulic seals and seal kits for hydraulic hammers, rock breakers, hydraulic excavators,wheel loaders, and JCB badkhoe loaders.
And, Our company also supply:
Engine parts, hydraulic piston pump and hydraulic travel motor, Swing motor assembly and hydraulic component parts, electric parts, etc. Hydraulic hammer breaker parts with piston, cylinder, chisel, through bolt, side bolt, top bush, front head bushing,accumlator, valve, etc.
We always try our best for all our customers and make it better and better. Welcome!
FAQ
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Can fluid drive couplings handle both angular and axial misalignments simultaneously?
Yes, fluid drive couplings are designed to handle both angular and axial misalignments simultaneously. The hydrodynamic principle used in fluid drive couplings allows them to accommodate misalignments between the driving and driven shafts in multiple directions.
Angular misalignment occurs when the axes of the driving and driven shafts are not perfectly parallel. Axial misalignment, on the other hand, refers to the misalignment of the two shafts along their common axis. In many real-world applications, both types of misalignment may exist.
Fluid drive couplings utilize a hydraulic fluid film to transmit torque between the impellers (pump and turbine) of the coupling. This fluid film creates a flexible and lubricating barrier between the impellers, enabling them to rotate independently of each other. As a result, the coupling can accommodate angular misalignment by allowing the impellers to tilt and follow the misaligned shafts’ angular positions.
Simultaneously, the fluid film also permits axial movement between the impellers, allowing the coupling to compensate for axial misalignment. When axial misalignment occurs, the fluid film cushions the impellers and permits axial displacement to occur without excessive stress or wear on the coupling.
The ability of fluid drive couplings to handle both angular and axial misalignments is one of their significant advantages over rigid mechanical couplings. Mechanical couplings, such as gear couplings or rigid couplings, are more sensitive to misalignments and may lead to premature wear, vibration, and increased stress on the connected machinery in case of misalignment.
However, it is essential to note that while fluid drive couplings can tolerate a certain degree of misalignment, excessive misalignment can still lead to reduced performance and increased wear over time. Regular monitoring of the coupling’s condition and addressing any significant misalignment issues is crucial to maintaining optimal performance and ensuring the longevity of the fluid drive coupling and the power transmission system it serves.
Real-World Examples of Successful Fluid Drive Coupling Installations and Their Benefits
Fluid drive couplings, also known as hydraulic couplings or fluid couplings, have been widely used in various industrial applications to achieve numerous benefits. Here are some real-world examples of successful fluid drive coupling installations and the advantages they offer:
- Mining Industry:
In large mining operations, fluid drive couplings are commonly used in conveyor belt systems to control the starting and stopping of the belts. The fluid coupling provides smooth and gradual acceleration, reducing shock loads on the conveyor system and minimizing wear and tear on the belts and other components. This results in increased equipment lifespan and reduced maintenance costs. Additionally, the fluid coupling offers overload protection, preventing damage to the conveyor system in case of sudden overloads or blockages.
- Steel Industry:
In steel mills, fluid drive couplings are utilized in various applications, such as rolling mills and large fans. In rolling mills, fluid couplings help maintain a constant speed during rolling operations, ensuring consistent product quality. The fluid coupling’s ability to absorb shock loads and torsional vibrations protects the rolling mill equipment and reduces downtime. In cooling and ventilation fans, fluid couplings provide soft starts and smooth speed control, leading to energy savings and quieter operation.
- Power Generation:
In power plants, fluid drive couplings are commonly used in steam turbines and gas turbines. Fluid couplings allow for controlled acceleration of the turbines, reducing the mechanical stress on the blades and rotor during startup. This results in extended turbine life and improved reliability. Additionally, fluid couplings help improve grid stability by enabling gradual synchronization with the power grid during startup.
- Marine Industry:
In marine propulsion systems, fluid drive couplings are employed to connect diesel engines to propellers. The fluid coupling ensures smooth torque transmission and absorbs torsional vibrations, preventing damage to the propulsion system and increasing the lifespan of the engine and gearbox. Additionally, the fluid coupling offers overload protection, safeguarding the engine and drivetrain from sudden load changes.
- Pumping Applications:
In water and wastewater treatment plants, fluid drive couplings are commonly used in pump applications. The fluid coupling enables soft starts, reducing the impact on the pump and electrical system during startup. This results in energy savings and extended pump life. Additionally, the fluid coupling’s ability to dampen torsional vibrations minimizes wear on pump bearings and mechanical seals.
These real-world examples illustrate the versatility and effectiveness of fluid drive couplings in various industries. Whether in mining, steel production, power generation, marine propulsion, or pumping applications, fluid couplings provide reliable and efficient power transmission while offering benefits such as reduced maintenance, energy savings, increased equipment lifespan, and improved system reliability.
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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.
editor by CX 2024-05-09
