Water turbine rotating wheel main shaft flange with corrosion-resistance friction structure

Abstract

The invention discloses a water turbine rotating wheel main shaft flange with a corrosion-resistance friction structure. The water turbine rotating wheel main shaft flange comprises a main shaft flange, a rotating shaft flange, a flange sealing sleeve, a flange mounting groove, a corrosion-resistance friction module and a flange plate fastening mechanism. Compared with the prior art, the water turbine rotating wheel main shaft flange is reasonable in design and simple in structure; through a mode of arranging the flange sealing sleeve and the corrosion-resistance friction module, a first sealing ring and a second sealing ring are matched to firmly seal contacted surfaces of the main shaft flange and the rotating shaft flange; through a corrosion-resistance friction coating layer arranged on the corrosion-resistance friction module, the friction force of the contacted surfaces of the main shaft flange and the rotating shaft flange can be increased, and the corrosion resisting function is achieved; and water currents can be isolated from the contacted surfaces of the main shaft flange and the rotating shaft flange by the flange sealing sleeve, so that the flange connecting stability,reliability and durability are improved, and the popularization is facilitated.

Description

【Technical field】 [0001] The invention relates to the technical field of fasteners, in particular to a water turbine runner main shaft flange with an anti-corrosion friction structure. 【Background technique】 [0002] Pelton turbines are often called high head turbines because of their high water heads. In normal operation, the water flow with high head and high pressure impacts the runner of the turbine and drives the main shaft of the turbine and the main shaft of the generator to rotate, thereby driving the rotor of the generator to cut the magnetic lines of force to generate electricity. In the prior art, the runner of the water turbine is connected to the main shaft of the generator through a flange. Since the water head of the high-head water turbine is relatively high, the impact of the water flow is strong, and the speed of the runner is relatively high. Therefore, the stability of the interface between the runner and the main shaft of the water turbine Higher requir...

AI Technical Summary

Problems solved by technology

In the prior art, the runner of the water turbine is connected to the main shaft of the generator through a flange. Since the water head of the high-head water turbine is relatively high, the impact of the water flow is strong, and the speed of the runner is relatively high. Therefore, the stability of the interface between the runner and the main shaft of the water turbine more demanding

In addition, the joint surface between the turbine runner and the main shaft flange is just at the main part of the impact of the strong impact water flow, and the erosion of the joint surface by the water flow seriously affects its stability, reliability and service life

Obviously, there is a strong impact force in the joint surface structure between the turbine runner and the main shaft flange in the prior art. The water flow affects the stability of the joint surface between the turbine runner and the main shaft, and the erosion of the water flow on the joint surface affects its stability, reliability and use. Therefore, it is necessary to propose a hydraulic turbine runner main shaft flange with an anti-corrosion friction structure

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