Design method of flower transplanting mechanism with cam crank rocker combination

Abstract

The invention discloses a cam-crank-rocker combined flower transplanting mechanism and a design method thereof. A planetary gear transplanting mechanism is limited in flexibility of realizing a trajectory; and a rod mechanism with a double-ring-buckle trajectory is difficult in design and parameter regulation. According to the mechanism provided by the invention, one ends of a cam and a crank are both hinged with a frame through a camshaft; the other end of the crank is hinged with the central part of a second connecting rod; a forked swing rod comprises a bottom-end-welded oscillating rod and a cam swing rod; two ends of a spring are separately connected with the forked swing rod and the frame; a roller is hinged with the top end of the cam swing rod and constitutes a cam pair with the cam; the top end of the oscillating rod is hinged with one end of a first connecting rod; and the other end of the first connecting rod is hinged with one end of the second connecting rod. The design method provided by the invention is as follows: the cam is reversely solved with a mathematical model of a single-ring-button trajectory formed by the terminal point of the free end of the second connecting rod, a coordinate of the hinge joint of the forked swing rod and the frame, and known conditions of rod lengths. According to the invention, through changing of the profile of the cam to control the movement law of a rocker, the single-ring-buckle trajectory is realized, and the mechanism is simple.

Description

Technical field [0001] The invention belongs to the field of agricultural machinery, relates to a flower transplanting mechanism and a design method, in particular to a design method of a cam-crank-rocker combined flower transplanting mechanism. Background technique [0002] Flower transplanting technology can reduce the growth cycle of crops, maintain the uniform quality of crops, and achieve the purpose of increasing production and income. It has become the main planting measure in the production of potted flowers in modern greenhouses. The development of automated potted flower transplanting technology is an important measure to comply with the trend of high growth rate of potted flower production, solve the existing low productivity and promote the modernization of agriculture. With the development of flower production and facility agriculture technology in China, the foundation and conditions for vigorously developing automated potted flower transplanting technology are now ...

AI Technical Summary

Problems solved by technology

[0003] The existing single-degree-of-freedom intermittent gear planetary gear train and continuous non-circular gear planetary gear train transplanting mechanism are limited by the gear transmission ratio, which can realize the flexibility of the trajectory. The design of the seedling planting mechanism in the flower tray is very difficult; although the hybrid drive mechanism has two degrees of freedom, the trajectory design is flexible, but the control system of the machine is not easy to design

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