High-flexibility nine-rod two-degree-of-freedom mechanical loading mechanism

Abstract

A high-flexibility nine-rod two-degree-of-freedom mechanical loading mechanism is composed of a rack, a movable arm control branched chain and a scraper bucket control branched chain. The movable arm control branched chain is controlled by a first driving rod and enables a movable arm to ascend or descend. The scraper bucket control branched chain is controlled by a second driving rod and turned over by a scraper bucket. Due to the fact that the movable arm ascending branched chain is matched with the scraper bucket control branched chain, the loading and unloading work of the mechanical loading mechanism can be functionally completed. The rod pieces of the mechanical loading mechanism are all in revolute pair connection, and the defects that a traditional fully-hydraulic loading mechanism comprising a revolute pair is high in manufacturing cost, poor in reliability, high in maintenance cost and the like are avoided; meanwhile, compared with other controllable mechanism type loading mechanisms, the mechanical loading mechanism is compact in structure and large in rigidity, and the brand new structure with the superior kinematic performance and dynamic performance is adopted, so that the loading mechanism is better in reliability and dynamic stability.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a high-flexibility nine-rod two-degree-of-freedom mechanical loading mechanism. Background technique [0002] Loader is a kind of earthwork construction machinery widely used in construction projects such as roads, ports, mines, railways, etc. It is mainly used for shoveling bulk materials such as soil, sand and gravel, and can also be used for light shoveling of ore, hard soil, etc. Operation. Different auxiliary working devices can also be used for bulldozing, lifting and loading and unloading of other materials. Loaders are the most widely used construction machinery. With the development of social economy, loaders are more and more used in urban municipal engineering, garbage cleaning, construction engineering and other occasions. The existing loader is mainly composed of two parts: the boom lifting mechanism and the bucket turning mechanism, which are respectively cont...

AI Technical Summary

Problems solved by technology

The efficiency of mechanical transmission is high, and the existing mechatronics technology can overcome the shortcomings of mechanical transmission, such as easy overload damage

However, most of the existing multi-degree-of-freedom controllable loading mechanisms are simply improvements to the existing hydraulic loading mechanisms. The hydraulic system in the hydraulic loading mechanism is replaced by a two-link mechanism, which lacks the dynamic performance of rod transmission and hydraulic cylinder transmission. Considering the difference, it leads to disadvantages such as poor rigidity of the mechanism, small overload resistance, poor kinematics and dynamic performance, and it is difficult to meet the needs of actual operations. Although some deficiencies in the hydraulic system have been solved, it is difficult to apply to the design and production of loaders.

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