Product Description
Densen customized Motor Single Disc Flexible Shaft Coupling
| Product Name | Motor Single Disc Flexible Shaft 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. |
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Company Information
Equipment
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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What is a Motor Shaft Coupling and How Does It Work?
A motor shaft coupling is a mechanical device used to connect the shaft of an electric motor to the shaft of another rotating component, such as a pump, gearbox, or fan. It provides a flexible connection that allows torque to be transmitted between the motor and the driven equipment while accommodating any misalignment that may exist between the two shafts.
The primary function of a motor shaft coupling is to transmit rotational power from the motor to the connected equipment, enabling the machinery to perform its intended function. It acts as a bridge between the motor and the driven shaft, ensuring a reliable and efficient transfer of mechanical energy.
Working Principle: Motor shaft couplings typically consist of two flanges or hubs, one attached to the motor shaft and the other to the driven shaft. These hubs are connected by an element, which can be rigid or flexible depending on the type of coupling.
In flexible couplings, an elastomeric material or a series of elastomeric elements are used as the connecting element. This allows the coupling to flex and compensate for any angular, parallel, or axial misalignment between the motor shaft and the driven shaft. As the motor rotates, the torque is transmitted through the flexible element to the driven shaft, enabling the equipment to rotate at the desired speed and perform its intended function.
In rigid couplings, the two hubs are directly connected with no flexible element in between. These couplings are suitable for applications where misalignment is minimal or where precision alignment is required.
Motor shaft couplings are essential components in various industrial applications, such as pumps, compressors, conveyor systems, and fans. They play a crucial role in ensuring smooth power transmission, minimizing vibrations, and protecting both the motor and the connected equipment from undue stress and wear.
The selection of the appropriate motor shaft coupling depends on factors such as the required torque capacity, shaft diameters, misalignment tolerances, and the specific needs of the application. Proper installation and maintenance of the coupling are essential for its reliable and long-term performance in the system.
editor by CX 2024-05-08