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.
How Fluid Drive Couplings Ensure Efficient Power Transmission and Smooth Operation
Fluid drive couplings, also known as hydraulic couplings or fluid couplings, are designed to facilitate efficient power transmission and ensure smooth operation in various industrial applications. Here’s how they achieve these objectives:
- Fluid Medium: Fluid drive couplings contain a fluid medium, typically hydraulic oil, inside a sealed chamber. When the driving shaft rotates, it imparts motion to the fluid.
- Centrifugal Action: As the fluid is set in motion by the driving shaft, it creates a centrifugal force that causes the fluid to move outward towards the housing walls.
- Torque Transmission: The moving fluid then comes in contact with the blades or vanes attached to the driven shaft. This interaction transmits torque from the driving shaft to the driven shaft, allowing power transmission.
- Smooth Start: During startup, the fluid coupling provides a controlled, gradual acceleration to the driven shaft. This soft start minimizes shock loads on the connected equipment, reducing wear and tear and preventing damage to the system.
- Torque Converter: In some applications, fluid drive couplings function as torque converters, especially in automatic transmissions. They enable efficient power transfer in a wide range of speeds, allowing the engine to operate efficiently at various load conditions.
- Torsional Vibration Damping: Fluid drive couplings act as torsional vibration dampers, absorbing vibrations and shocks caused by sudden changes in load or speed. This feature protects the connected equipment and improves overall system reliability.
- Overload Protection: Fluid drive couplings offer overload protection by slipping when the load exceeds a certain threshold. This prevents mechanical damage and helps safeguard the system from sudden shocks or blockages.
- Energy Efficiency: By providing a soft start and minimizing power loss during transmission, fluid drive couplings contribute to energy efficiency in various applications.
Overall, fluid drive couplings play a crucial role in ensuring efficient power transmission, protecting equipment from damage, and enabling smooth operation in a wide range of industrial processes.
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 2024-02-26
