Fluid coupling rotor and production method thereof

Abstract

The invention provides a fluid coupling rotor and a production method thereof. The fluid coupling rotor comprises an inner flange plate, an annular turbine cavity, a blade and an outer flange plate. The inner flange plate and the annular turbine cavity are connected integrally. The blade and the annular turbine cavity are welded. The outer flange plate and the annular turbine cavity are welded. The annular turbine cavity is formed by die forging. The inner flange plate, the annular turbine cavity, the blade and the outer flange plate are made of stainless steel. The production method comprisesthe steps of material selection, initial shaping, die forging modeling, forming processing of the annular turbine cavity and blade welding. The traditional rotor structural connection mode is changed, pollution hazards to the environment due to the production process are reduced, and energy consumption is lowered. The fluid coupling rotor obtained by the production method is good in smooth flatness, regular in structure, high in precision and large in material improvement space, the rotor is repairable, production cost is lowered greatly, and energy is saved.

Description

technical field [0001] The invention relates to the technical field of hydraulic couplings for coal mines, mine scrapers and crushers, in particular to a production method for a rotor for hydraulic couplings. Background technique [0002] The hydraulic coupling rotors currently on the market are generally obtained by precision casting of Cu, Al, Mg and other non-ferrous metals. The alloy contains a large amount of non-ferrous metals and Si, C, S, P and other elements and their interactions. The formed binary, ternary, quaternary and other alloys, because they contain more ferrous metals, are easy to form substances harmful to the environment, and have been rarely used in developed countries; the above metal alloys are formed by precision casting, which requires complex casting molds. Large-scale furnaces, deoxidizers and deoxidizers, heat treatment equipment, complex manufacturing process and difficult to control, casting defects such as blisters, pores, cracks, etc. are eas...

AI Technical Summary

Problems solved by technology

[0002] The hydraulic coupling rotors currently on the market are generally obtained by precision casting of Cu, Al, Mg and other non-ferrous metals. The alloy contains a large amount of non-ferrous metals and Si, C, S, P and other elements and their interactions. The formed binary, ternary, quaternary and other alloys, because they contain more ferrous metals, are easy to form substances harmful to the environment, and have been rarely used in developed countries; the above metal alloys are formed by precision casting, which requires complex casting molds. Large-scale furnaces, deoxidizers and deoxidizers, heat treatment equipment, complex manufacturing process and difficult to control, casting defects such as blisters, pores, cracks, etc. are easily formed on the workpiece, and the energy consumption is high, and the floor area is large; after the alloy is formed, due to the need to obtain Appropriate tensile strength, yield strength, elongation, and hardness, so the requirements for the proportion of each element in the alloy are extremely strict. There are strict requirements for the order, temperature and time of adding in the casting process, and it is difficult to obtain effective casting quality. Control and guarantee, if there is a slight deviation in the operation, the entire casting process will be wasted; the obtained CuAl alloy fluid coupling rotor has a large number of blades because the blades are thin, with a thickness of only 5mm. The pump wheel has 46 blades, and the turbine There are 45 blades, and the blades must be evenly distributed in the circumferential direction, so that the dynamic balance is better and the impact on the medium is low. However, it is difficult to achieve uniform distribution and thickness of the blades in the casting process; if there are defects in the blade parts after casting , the whole part can only be scrapped; the rotor made of CuAl alloy has low repairability of the material itself, once it is formed or damaged, it is difficult to repair; the existing cast rotor is affected by the casting process, the surface is rough and cannot be smooth Flat, the gap between the blades is small, processing is difficult, the smoothness of the curve is reduced, and the friction force on the working medium is also increased, which not only affects the running stability of the rotor, but also makes the working medium easier to generate heat, and the energy consumption is relatively high; Affected by the casting production process, the material performance of the rotor has limited room for improvement

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