High-rigidity nine-lever and two-freedom degree controllable mechanical loading mechanism

Abstract

The invention relates to a high-rigidity nine-lever and two-freedom degree controllable mechanical loading mechanism, which comprises a machine frame, a movable arm control branched chain and a bucket control branched chain, wherein the movable arm control branched chain is controlled by a first driving lever and is used for elevating a movable arm; the bucket control branched chain is controlled by a second driving lever and is used for turning a bucket. The mechanical loading mechanism can complete loading and unloading operation by means of the interaction of the movable arm elevating branched chain and the bucket control branched chain. According to the mechanical loading mechanism, all the levers are connected through revolute pairs, and thereby the defects of high cost, low reliability, high maintenance cost and the like of the conventional full hydraulic loading mechanism with sliding pairs are overcome. Moreover, compared with other controllable loading mechanisms, the mechanical loading mechanism has the advantages of compact structure, high rigidity, and novel structure with superior kinematic and dynamic performance, and thereby the loading mechanism is higher in reliability and dynamic stability.

Description

technical field [0001] The invention relates to the field of construction machinery, in particular to a high-rigidity nine-rod two-degree-of-freedom controllable 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 respec...

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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