Large-rigidity multi-connecting-rod controllable mechanical loading mechanism

Abstract

A large-rigidity multi-connecting-rod controllable mechanical loading mechanism comprises a frame, a movable arm control branch chain and a bucket control branch chain. The movable arm control branch chain is controlled by a first drive rod to perform movable arm ascending or descending. The bucket control branch chain is controlled by a second drive rod to control turning of a bucket. By cooperation of the movable arm control branch chain and the bucket control branch chain, loading operation can be completed. Rods of the mechanical loading mechanism are connected through rotating pairs, and the defects that traditional total-hydraulic loading mechanisms containing moving pairs are high in manufacturing cost, poor in reliability, high in maintenance cost and the like are overcome. Compared with other controllable mechanical loading mechanisms, the loading mechanism is compact in structure, high in rigidity, and good in reliability and dynamic stability by using the novel structure with excellent kinematic and dynamic performance.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a large-rigidity multi-link 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 respectively controlled by...

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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