Customized Fluid Coupling, Aluminum Fluid Coupling, and Flexible Couplings
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Customized fluid coupling, aluminum fluid coupling, aluminum shaft couplings, and flexible couplings
| Product Name | Densen Customized fluid coupling for conveyor, hydraulic gear fluid coupling, limited torque fluid coupling |
| DN mm | 225~1312mm |
| Rated Torque | 2000~11950000N·m |
| Allowable speed | 1500~3000 RPM |
| Material | 35CrMo/ZG270/45# steel/Aluminum alloy |
| Application | They are widely used in metallurgy, mining, engineering, and other fields. |
Features
1. Protect the motor and improve the performance of the motor mousetrap
2. Shorten the start-up cycle; reduce the average current during the start-up process
3. Mitigate shock and vibration at start-up Proven overload
4. Balanced load of each motor in the multi-motor drive system
5. The structure is simple and reliable. No mechanical wear. no special maintenance
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The Working Principle of Fluid Coupling
How the fluid works can easily be explained with two fans, one connected to the power supply and one not connected to the power supply. When the power switch is turned on, the air from the first fan starts to blow towards the second fan (which is not connected to power). Initially, when the first fan was blowing at a lower speed, it couldn’t drive the second fan. But as the speed of the powered fan increases, the rate at which the air hits the double fan blade also increases and begins to spin.
On the same principle, fluid coupling works. In that the impeller act as the first fan and the turbine act as the second fan. Both impeller and turbine are enclosed in oil-tight housing. The impeller is connected to the input shaft of the prime mover and the turbine with the output shaft. When the impeller is moved by the prime mover, the fluid in the housing experiences a centrifugal force, and due to the curved vanes of the impeller the fluid is directed towards the turbine blades. As the fluid strikes the turbine blades, it starts rotating. With the increase in the speed of the impeller, the velocity of the turbine increases and becomes approximately equal to the impeller speed. The fluid after passing through the turbine blades again returns to the impeller.
Application
- It is used in automotive industries for the transmission of power from the engine to the wheel as alternative of clutch.
- It is used in marine propulsion systems.
- It is used in various industries for power transmission.
Advantages of Fluid Couplings
Now that you are familiar with the applications of this fluid coupling, let’s take a brief look at its advantages:
- Wear free power transmission due to absence of mechanical connection between the input and output elements.
- No-load start-up of motor irrespective of machine load.
- Sequential starting of multiple motors to reduce aggregate value of current drawn.
- Smooth and controlled acceleration of large inertia driven machines by a simple squirrel cage induction motor.
- Motor selection to operating duty/load rather than starting loads resulting in lowering capital cost.
- Overload protection for motor and driven machine by limiting maximum torque to a predetermined safe value.
- Simple control of torque by changing the fill level (amount of operating fluid).
- Automatic unloading of prime mover in case of sustained overload due to response (blowing-off) of fusible safety plug.
- Effective dampening of shocks, load fluctuations and torsional vibrations.
- Step less speed variation in scoop tube type fluid couplings.
- High efficiency due to low slip at rated duty