Hydraulically operated Kaplan turbine structure with oilless hub

Abstract

The invention provides a hydraulically operated Kaplan turbine structure with an oilless hub. According to the hydraulically operated Kaplan turbine structure, a first mounting cavity is defined in the hub; paddles are arranged on the hub, and the paddles are evenly arranged in the circumferential direction of the hub at intervals; a second mounting cavity extending in the axial direction of a spindle and penetrating through the spindle is defined in the spindle, the hub is mounted at the first end of the spindle, and the first mounting cavity is communicated with the second mounting cavity; the first end of an operation rod assembly is connected with the paddles; a servomotor assembly is connected with the second end of the operation rod assembly; an oil head is arranged at the second endof the spindle, an oil receiving hole is formed in the oil head, the oil head and the servomotor assembly are communicated through an oil path so that operation oil received from the oil receiving hole can be distributed to the servomotor assembly, the servomotor assembly can push the operation rod assembly to do axial displacement under the action of the operation oil, therefore, the paddles aredriven to rotate, and the hub, the spindle, the operation rod assembly and the paddles are further driven to synchronously rotate. According to the hydraulically operated Kaplan turbine structure with the oilless hub, oilless operation in the hub can be achieved, and oil pollution to rivers can be completely eradicated.

Description

technical field [0001] The invention relates to the technical field of water turbines, and more particularly relates to a hydraulically operated hub oil-free propeller type water turbine structure. Background technique [0002] The hub of a traditional rotary paddle turbine is full of oil, so once the blade seal fails, a large amount of operating oil and lubricating oil will be injected into the river, causing water pollution. Therefore, in recent years, some advanced manufacturers in Europe and the United States have taken oil-free wheel hubs as the direction of technology research and development, and developed related products. [0003] The technical route of existing products is concentrated on the research and development and application of new technologies for lubricating materials and sealing materials, which are used as the main technical measures for "less lubricating oil" of the wheel hub. The structural features of its products are: the servomotor and the oil rec...

AI Technical Summary

Problems solved by technology

Although the purpose of rotating the propeller is achieved, the disadvantage of this structure is that the operating oil for rotating the propeller and the lubricating oil for bearing lubrication and anti-corrosion are required in the hub, which cannot completely achieve "oil-free hub", and still There is a certain risk of water pollution

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