Two-DOF (degree of freedom) controllable mechanical loading mechanism

Abstract

The invention relates to a two-DOF (degree of freedom) controllable mechanical loading mechanism comprising a frame, a moving arm lifting branch and a bucket control branch. The moving arm lifting branch is controlled through a first driving bar to ascend or descend the moving arm. The bucket control branch is controlled through a second driving bar to overturn a bucket. The mechanical loading mechanism functionally finishes loading under coordination of the moving arm lifting branch and the bucket control branch. Members in the mechanical loading mechanism are all connected through revolute pairs; accordingly, the defects that the traditional full-hydraulic loading mechanism comprising prismatic pairs is high in manufacture cost, poor in reliability, high in maintenance cost and the like are overcome; compared to other controllable loading mechanisms, the mechanical loading mechanism is more compact in structure and higher in rigidity; with the brand-new structure having more excellent kinematic and dynamic performances, the mechanical 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 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 respectively controlled by the...

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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