Closed-chain five-link transplanting mechanism for flowers and plants and design method therefor

Abstract

The invention discloses a closed-chain five-link transplanting mechanism for flowers and plants and a design method therefor. A planetary gear train transplanting mechanism can realize flexibility restriction to trajectories; and parameters of a link mechanism with dual-snap-ring trajectories are difficult in design and adjustment. According to the mechanism disclosed by the invention, the bottom end of a first crank and the bottom end of a second crank are welded; the top end of the first crank is hinged to one end of a second link, and the top end of the second crank is hinged to the middle part of a third link; a forked swing link comprises a first swing link and a second swing link, of which bottom ends are hinged; the bottom end of the forked swing link is hinged to a rack; the other end of the second link is hinged to the top end of the first swing link; one end of a first link is hinged to the top end of the second swing link, and the other end of the first link is hinged to one end of the third link; and the other end of the third link is arranged freely. According to the design method disclosed by the invention, the length of each of rest links is determined reversely under the condition of a single-snap-ring trajectory mathematical model formed at the endpoint of the free end of the third link, coordinates of a hinged point of the forked swing link and the rack and known link length. According to the closed-chain five-link transplanting mechanism for the flowers and plants and the design method therefor, a single-snap-ring trajectory is achieved, and the mechanism is simple and easy to control.

Description

technical field [0001] The invention belongs to the field of agricultural machinery and relates to a flower transplanting mechanism, in particular to a closed-chain five-bar flower transplanting mechanism and a design method thereof. 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 modern greenhouse potted flowers. The development of automatic potted flower transplanting technology is an important measure to comply with the high growth rate of potted flower production, solve the existing low productivity and promote the modernization of agriculture in our country. With the development of flower production and facility agriculture technology in our country, the foundation and conditions for vigorously developing automatic potted flower transplanting technology have be...

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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