Electromagnetic type active metamorphic 5R-4R-4R controllable excavation mechanism

Abstract

An electromagnetic type active metamorphic 5R-4R-4R controllable excavation mechanism comprises a machine frame, a large arm swinging mechanism, a bucket rod ascending and descending mechanism, a bucket keeping mechanism and an electromagnetic locking device. The large arm swinging mechanism comprises a large arm and a swinging mechanism. The bucket rod ascending and descending mechanism comprises a bucket rod and an ascending and descending mechanism. The bucket keeping mechanism comprises a bucket and a keeping mechanism. The electromagnetic locking device is installed on a rotation pair. The active metamorphic function is achieved through the electromagnetic locking conducted on the rotation pair. Traditional hydraulic transmission is replaced with a connecting rod transmission mechanism, and the defects that a hydraulic system of a hydraulic excavator is complex and prone to oil leakage are overcome; the electromagnetic locking device is arranged on the rotation pair, and therefore the active metamorphism can be achieved according to different working conditions, the flexibility of the hydraulic excavator is achieved, the three-freedom-degree excavation work can be achieved through two active rods, the manufacturing cost of the excavation mechanism is reduced, and the electromagnetic type active metamorphic 5R-4R-4R controllable excavation mechanism is suitable for manufacturing various excavators and other engineering machines.

Description

technical field [0001] The invention relates to the field of construction machinery, in particular to a 5R-4R-4R controllable excavating mechanism with electromagnetic active transformation. Background technique [0002] Excavator is a common construction machine, which is mainly used in various earthwork constructions. Among them, the hydraulic excavator is the most widely used type of excavator, but the manufacturing cost of the hydraulic system is high, and problems such as oil leakage are prone to occur. These are long-standing thorny problems of hydraulic excavators. However, traditional single-degree-of-freedom mechanical excavators, commonly known as "electric shovels", can only achieve simple and unchangeable trajectory output, so they cannot be used in a wide range of fields like hydraulic excavators. [0003] With the development of motor technology and the improvement of control technology, the controllable mechanism provides a broad development space for constru...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a 5R-4R-4R controllable excavation mechanism with electromagnetic active cell transformation, which should firstly have the advantages of large working space, large excavation force, and good force of traditional hydraulic excavators, and overcome the traditional hydraulic excavator maintenance. High maintenance cost, high operating noise, high cost of hydraulic components, and insufficient response. At the same time, the number of active rods should be reduced to reduce the number of controllable motors and reduce the manufacturing cost of excavating mechanisms.

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