Nine-bar two degrees-freedom minitype controllable mechanical loading machine

Abstract

The invention discloses a nine-bar two degrees-freedom minitype controllable mechanical loading machine. The mechanical loading machine consists of a 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 rod and lifts or descends a movable arm, the bucket control branched-chain is controlled by a second driving rod and overturns a bucket, and the loading and unloading operation of the mechanical loading mechanism is finished by the interaction between the movable arm control branched-chain and the bucket control branched-chain. The member bars of the mechanical loading machine are connected through revolute pairs, thereby preventing the defects that a traditional full hydraulic loading mechanism containing the movable pairs is high in price, bad in reliability and high in maintenance cost; and compared with other controllable mechanism loading mechanisms, the mechanical loading mechanism is compact in structure and strong in rigidity, and has a brand new configuration with more excellent kinematic and dynamic performances, so that the loading mechanism is better in reliability and dynamic stability.

Description

technical field [0001] The invention relates to the field of construction machinery, in particular to a nine-rod two-degree-of-freedom miniature controllable mechanical loader. 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 controll...

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.

Images