Two-degree-of-freedom variable crank seven-bar flower transplanting mechanism

Abstract

The invention discloses a two-degree-of-freedom variable-crank seven-link flower transplanting mechanism. The two-degree-of-freedom variable-crank seven-link flower transplanting mechanism is used for solving the problem that effects of entering a seedling planting work part at a better attitude and realizing the full automation of a flower transplanting machine are hard to guarantee due to the fact that a double crank mechanism and a planetary gear mechanism can only form one ring-buckle-shaped trajectory. According to the two-degree-of-freedom variable-crank seven-link flower transplanting mechanism, one end of a first crank is fixedly arranged on an output shaft of a first constant-speed motor; one end of a first link is hinged to the first crank, and the other end of the first link is hinged to one end of a second link; the middle part of the second link is hinged to one end of a third link, and the other end of the third link is arranged freely; a cam is fixedly arranged on a machine frame; one end of a second crank is fixedly arranged on an output shaft of a second constant-speed motor, and the other end of the second crank is connected with a sliding block through a sliding pair; a circular gear is hinged to the machine frame and is fixed together with the second crank; the sliding block is hinged to the other end of the third link and is connected with a cam slot of the cam. According to the two-degree-of-freedom variable-crank seven-link flower transplanting mechanism, double ring-buckle-shaped trajectories can be realized, so that the full automation of the flower transplanting machine is realized, and proper angle and speed for flower seedling casting and verticality of seedling planting are guaranteed.

Description

technical field [0001] The invention belongs to the field of agricultural machinery and relates to a flower transplanting mechanism, in particular to a two-degree-of-freedom variable crank seven-bar flower transplanting mechanism. Background technique [0002] Mechanized transplanting is generally divided into two steps: taking seedlings and planting. According to different ways of taking seedlings, the transplanting machine is divided into two modes: fully automatic and semi-automatic. The key sign is to see whether it uses mechanized seedling picking. [0003] At present, there are two ways of picking seedlings by mechanical transplanting in dry land and picking seedlings by clamping seedlings. The new planetary gear system rotary seedling picking mechanism includes a hybrid high-order modified elliptical gear planetary system seedling transplanting machine, a free second-order non-circular gear planetary system high-speed pot seedling transplanting mechanism and a rotary...

AI Technical Summary

Problems solved by technology

[0004] For the double crank mechanism and the planetary gear mechanism, only one ring-shaped trajectory can be formed, and the double-loop-shaped trajectory cannot be realized. It is difficult to ensure that it can enter the seedling planting work part with a better attitude and realize the full automation of the flower transplanting machine. In order to solve this problem, It is necessary to design a ring-shaped trajectory in the seedling planting mechanism to meet the requirements of the flower transplanting trajectory

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