Propeller quick disassembly and assembly structure and aircraft provided with same

Abstract

The invention discloses a propeller quick disassembly and assembly structure and an aircraft provided with the same, and is characterized in that a locking safety device is provided with a first boss, a button is provided with a first groove, and the first boss matches the first groove; an upper inclined face matches the upper matching face of a propeller blade, the upper inclined face can press the upper matching face corresponding to the propeller blade in the blade disassembling and assembling process, a lower inclined face matches the lower matching face of the propeller blade, in the blade assembling and disassembling process, the lower inclined face of the button can carry out linkage according to the lower matching face through vertical movement of the blade, a propeller hub is in a long strip shape, and when the blade is pressed downwards to be attached to the base, the button tightly presses the two ends of the blade and the two ends of the propeller hub through the upper inclined face or the lower inclined face which is correspondingly matched. According to the propeller quick disassembly and assembly structure and the aircraft provided with the same, disassembly and assembly operation is simple, the safety and safety degree is high, abrasion is reduced, cost is saved, and the service life of a product is prolonged.

Description

technical field [0001] The invention relates to the technical field of disassembly and assembly of aircraft propellers, in particular to a quick disassembly structure for propellers and an aircraft equipped with the structure. Background technique [0002] Propeller refers to a device that converts the rotational power of the engine into propulsion by rotating the blades in the air or water. There may be two or more blades connected to the hub, and the rear side of the blades is a helical surface or similar to a helical surface. A propeller is an important structure of aircraft such as helicopters. In general, propellers have forward speed in addition to rotation. The application of propellers in aircraft such as helicopters is particularly important. Existing propellers generally have one or more of the following characteristics during use. The structure of the blade root is mostly a circular outer contour, which is suitable for small-size blades. If it is used for large-s...

AI Technical Summary

Problems solved by technology

The structure of the blade root is mostly a circular outer contour, which is suitable for small-size blades. If it is used for large-size blades, a lot of unnecessary structural weight needs to be added; the transitional shape between the blade root and the quick-release structure The design is not conducive to the local force at the root of the blade, and cannot be used for large blades; for plastic propellers, the structure of the hub is too complicated, and for plastic injection molds, the responsibility for the mold structure and the production and maintenance costs of the mold are greatly increased. Reduce the service life of the mold; the contact surface of the quick release is easy to wear; the precision of the machining error is high, and the contact surface of the quick release structure is prone to gaps, which will cause bumps and wear, and the gaps will also produce vibrations, which will affect the motor. Even the safety and longevity of the aircraft or related carrier structures; there are springs in the propeller quick-release structure, and the strength of the springs causes a contradiction between the reliability of the structure and the amount of effort spent on the installation process. The operation of the quick-release process is not convenient enough, and there is no How much time is really saved; for most inexperienced users, it is easy to misuse and damage the quick release structure; the concentric positioning of the propeller and the rotating shaft is not accurate enough, which affects the dynamic balance stability of the propeller when it is running; the propeller is not parallel to the installation plane , and the contact area is too small, which affects the aerodynamic balance of the propeller during operation; when the propeller needs to operate under complex working conditions with large vibrations, most of the existing technical solutions lack insurance design to ensure that the quick release structure will not accidentally loosen during vibration; In this era of intelligence, the existing technical solutions stay at the level of the original mechanical structure to solve the problem, but do not make full use of the new features of intelligence to comprehensively improve the safety of the quick release structure

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