Variable mobility connecting rod mechanism driven by servomotor

Abstract

A variable mobility connecting rod mechanism driven by a servomotor is characterized by comprising a base 1, a large arm lifting mechanism, a wrist connecting rod pitching mechanism, a servo drive device, a first locking device 9 and a second locking device 19; the large arm lifting mechanism consists of a large arm 14 and a lifting mechanism, the large arm 14 is connected on the base 1 by a seventh rotary pair 13, and the servo drive device comprises a first servomotor, which is connected to an active rod 3 to drive the same to rotate; and the first locking device 9 and the second locking device 19 are locked by an electromagnetic manner. The novel connecting rod transmission mechanism is adopted to replace traditional hydraulic transmission, the defects that the hydraulic system of a hydraulic sugarcane grabbing machine is complex, easy for oil leakage, high in machining precision requirement and the like are solved, since the locking devices are adopted on the rotary pair, the sugarcane grabbing operation of two freedom degrees can be realized by using one active rod, and a use number of the electromotor is reduced.

Description

technical field [0001] The invention relates to the mechanical field, in particular to a connecting rod mechanism driven by a servo motor with variable activity. Background technique [0002] In the past few years, due to the shortage of personnel in the labor market, labor costs have increased year by year, which has promoted the wide application of sugarcane grabbing machines in sugarcane material harvesting and processing operations. There are two types of sugarcane grabbers: mechanical and hydraulic. At present, most of the mechanical arms of the cane grabber are hydraulically driven. Since the hydraulic transmission uses hydraulic oil as the medium for power transmission, there are the following problems: its starting performance is poor, and it is easy to cause Leakage occurs after internal components are worn, and the leaked hydraulic oil will pollute the environment and affect the quality of sugarcane raw materials; hydraulic oil is greatly affected by temperature, t...

AI Technical Summary

Problems solved by technology

There are two types of sugarcane grabbers: mechanical and hydraulic. At present, most of the mechanical arms of the cane grabber are hydraulically driven. Since the hydraulic transmission uses hydraulic oil as the medium for power transmission, there are the following problems: its starting performance is poor, and it is easy to cause Leakage occurs after internal components are worn, and the leaked hydraulic oil will pollute the environment and affect the quality of sugarcane raw materials; hydraulic oil is greatly affected by temperature, the overall efficiency is low, and sometimes there is noise and vibration

At present, there are few variable-degree-of-freedom mechanisms that can be used in practice, and no variable-degree-of-freedom mechanisms that have been applied to cane grabbing machines have been seen.

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