EVP vacuum pump manufacturer focuses on the vacuum field. Oil free screw vacuum pump system is also known as dry screw vacuum pump. Dry screw vacuum pump is widely used in marine fuel system and hydraulic system because of its simple structure, light weight, small volume, good suction performance and high pressure efficiency. Today, we will introduce the rotor profile technology of dry screw vacuum pump, because it is one of the core technologies of screw vacuum pump manufacturers, so I want to let customers know what is the common rotor profile of screw vacuum pump. Next, according to the steps, we can understand the characterization method of rotor type of dry screw vacuum pump.
There are three special rotor profile methods for dry screw vacuum pumps, as follows:
1、 End face profile
Screw vacuum pump rotor is used in screw vacuum pump rotor production line. The end face production line is mainly used to study the conjugate performance of vacuum pump and screw rotor, analyze the inter stage leakage characteristics and calculate the volumetric efficiency. Pump chamber, etc. Very intuitive and convenient. Screw pump is a variable displacement pump, which is driven by the driven screw engaged with the driver. The type of screw end face has a great influence on the performance of the pump. Therefore, the design requirements of the end face line are: good sealing performance, excellent transmission performance and good process performance.
2、 Axial profile
Screw vacuum pump helix and shaft surface line are easy to be used in the design, processing and inspection of screw vacuum equal pitch pump rotor, so they are widely used.
3、 Normal profile
The normal must be used when designing the edge shape of forming tools, so it is mainly used for the design and processing of forming tools. In addition, the axial profile and normal profile are only used to characterize the rotor structure of the pitch solenoid. As long as one of the contour representation and spiral expansion mode is determined, the characteristic equations of end face line, shaft surface line and normal and the spiral surface equation of rotor tooth surface can be obtained by mutual transformation, and the other contour representations of screw vacuum pump rotor can also be determined.
Through the analysis of the common rotor profile of dry screw vacuum pump, I believe many people know that the design of dry screw vacuum pump is very important. It is not easy to design a set of production operation and mechanical equipment according to the needs of customers. The above three rotor profiles are designed according to the principle of screw pump, which effectively solves the problem between rotors in the operation of screw pump. A fully sealed state is achieved and leakage between the front and rear stages of the suction chamber is minimized. By designing this structure, the noise reduction and damping of the pump can be optimized and the production cycle of the actual product can be shortened.
The above is a detailed introduction of the common rotor profile types of dry screw vacuum pump. For more information about screw vacuum pump, please pay attention to us! EVP vacuum pump.
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