What is the function of centrifugal pump coupling
What is the function of centrifugal pump coupling?
For ordinary people, centrifugal pump coupling is a very strange product. If you want to understand it, where should you start to understand it? What is the function of centrifugal pump coupling?
Function of centrifugal pump coupling:
The coupling of centrifugal pump is used to connect the shafts in different mechanisms, mainly through rotation, to transfer the rotating power of the motor to the mechanical parts of the feed pump, so as to achieve the transmission torque. Under the action of high-speed power, the coupling of centrifugal pump has the function of buffering and damping. The coupling of centrifugal pump has better service life and work efficiency guarantee.
Classification of centrifugal pump couplings:
There are many kinds of coupling for centrifugal pump. According to the relative position and position change of the connected two shafts, it can be divided into:
Fixed centrifugal pump coupling
It is mainly used in the place where the two shafts are strictly aligned and no relative displacement occurs in the work. The structure is generally simple and easy to manufacture, and the instantaneous speed of the two shafts is the same, mainly including flange centrifugal pump coupling, sleeve centrifugal pump coupling, jacket centrifugal pump coupling, etc.
Movable centrifugal pump coupling
It is mainly used in the place where two shafts are inclined or there is relative displacement in the work. According to the method of compensating displacement, it can be divided into rigid movable centrifugal pump coupling and elastic movable centrifugal pump coupling.
(1) Rigid movable centrifugal pump coupling
The dynamic connection between the working parts of the centrifugal pump coupling is used to compensate for the mobility in a certain direction or several directions, such as inlaid centrifugal pump coupling (axial displacement is allowed), cross groove centrifugal pump coupling (used to connect two shafts with parallel displacement or small angular displacement), universal centrifugal pump coupling (used for two shafts with large deflection angle or large angular position in operation Where to move), gear centrifugal pump coupling (allowing comprehensive displacement), chain centrifugal pump coupling (allowing radial displacement), etc.
The coupling of rigid centrifugal pump can not adjust the concentricity of pump shaft and motor shaft. Therefore, the installation accuracy is required to be high, which is commonly used for the connection of small water pump unit and detachable centrifugal pump unit.
(2) Flexible movable centrifugal pump coupling
The elastic deformation of the elastic element is used to compensate the deflection and displacement of the two shafts. At the same time, the elastic element also has cushioning and damping properties, such as serpentine spring centrifugal pump coupling, radial multi-layer leaf spring centrifugal pump coupling, elastic ring pin centrifugal pump coupling, nylon pin centrifugal pump coupling, rubber sleeve centrifugal pump coupling, etc. Some centrifugal pump couplings have been standardized. When selecting, first select the appropriate type according to the working requirements, then calculate the torque and speed according to the diameter of the shaft, then find out the applicable model from the relevant manual, and finally make necessary checking calculation for some key parts.
