Multi-connecting-rod loading mechanism with active metamorphic function

Abstract

A multi-connecting-rod loading mechanism with the active metamorphic function comprises a rack, a driving rod, supporting frames, a supporting rod, pull rods, movable arms, a bucket and a locking device. One end of the driving rod is connected with the rack, the other end of the driving rod is connected with the first pull rod, the first pull rod is connected with the first supporting frame, the other two ends of the first supporting frame are connected with the second pull rod and the second supporting frame respectively, the second pull rod is connected with the bucket, one end of the second supporting frame is connected with the third pull rod, the other end of the second supporting frame is connected with the rack, the other end of the third pull rod is connected with the supporting rod, the supporting rod is fixed between the movable arms, and the locking device is installed on a revolute pair. According to the multi-connecting-rod loading mechanism, a connecting rod transmission mechanism is adopted for replacing a hydraulic mechanism, so that the defects that the hydraulic mechanism is prone to oil leakage, complex and the like are overcome; moreover, because the locking device is adopted for the revolute pair, active metamorphic operation can be carried out according to requirements of different working conditions, and the multi-connecting-rod loading mechanism is suitable for manufacturing various excavators and other engineering machines.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a multi-link loading mechanism with an active metamorphosis function. Background technique [0002] Loader is a common construction machinery, mainly used in earthwork construction. Among them, the hydraulic loader is the most widely used one. However, the manufacturing cost of the hydraulic system is high, and it is prone to oil leakage, high maintenance costs, high noise, large vibration and other problems. These are long-term thorny problems of hydraulic loaders. The mechanical loader only replaces the hydraulic components with connecting rods, and the structure itself has not changed. The rationality of the replacement has not been considered comprehensively, which limits its practicability and reduces its reliability. [0003] With the development of modern engineering technology, the electromechanical technology and control technology have been greatly improved. The c...

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Problems solved by technology

[0004] The purpose of the present invention is to design a multi-link loading mechanism with the function of active cell transformation. In addition to the traditional hydraulic loading mechanism must have the advantages of large loading capacity, large working space, and good force, it can overcome the traditional hydraulic loading mechanism. In addition to the characteristics of high cost, high working noise, strong vibration, high manufacturing cost, and insufficient response, the number of active rods should be reduced to reduce the number of drive motors, thereby reducing costs

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