Double-blade and double-faced symmetric machining device of large propellers

Abstract

The invention discloses a double-blade and double-faced symmetric machining device of large propellers, and relates to propeller machining devices. The device is provided with a fixed seat; a pair of symmetric propeller machining devices are arranged on the fixed seat; each propeller machining device comprises a supporting frame, an X-direction sliding seat, an X-direction driving screw rod, and a machining power device consisting of an X-direction driving motor, a Y-direction sliding seat, a Y-direction driving screw rod and a Y-direction driving motor; a small-free-degree parallel mechanism is arranged on the Y-direction sliding seat; a machining tool is arranged at the executing end of the small-free-degree parallel mechanism; and dividing mechanisms matched with the propeller machining devices and used for clamping propellers are arranged on the two supporting frames. The device can symmetrically machine the pressure surface and a suction surface of a paddle of the propeller, double-faced symmetric machining can effectively eliminate cantilever beam effect generated during the machining process, simultaneously reduce vibration, and improve the rigidity performance of the machining device, the machining efficiency and the machining accuracy of the propeller are high, and the invisibility and the safety of military submarines are guaranteed.

Description

technical field [0001] The invention relates to a propeller processing device, specifically a large-scale propeller double-knife double-sided symmetrical processing device with short processing period, high efficiency and high processing precision. Background technique [0002] We know that the propeller is the core component of the ship, and the diameter of the large propeller of a large ship can reach more than 10 meters. Large-scale propeller heavy-duty processing machine tools have been listed by European and American developed countries as strategic materials embargoed and blocked by my country, which has led to the processing level of large-scale propellers in my country lagging behind Western developed countries. For a long time, traditional manual relief grinding or three-coordinate machine tool processing methods have been used in China. These methods have the disadvantages of high cost and long cycle time, and the processing depends largely on the technical profic...

AI Technical Summary

Problems solved by technology

These methods have the disadvantages of high cost and long cycle time, and the processing depends largely on the technical proficiency of the production workers, which cannot guarantee the high-precision requirements of the propeller; the propeller has a high operating speed and the working environment is harsh, and the large propeller processed by the above method is easy. Cavitation, vibration, noise, wear and other adverse phenomena will reduce propeller propulsion efficiency and increase ship power consumption

For military submarines, the concealment and safety of the submarine cannot be guaranteed.

And adopt above-mentioned processing method to process large-scale propeller, labor intensity of worker is high, working environment is extremely harsh, and manufacturing cost is high

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