CN105794366B - A kind of Qu Zhong mechanisms of precision seeding machine - Google Patents

Abstract

The invention belongs to the technical field of design and manufacture of agricultural machinery, and in particular relates to a seed picking mechanism of a precision seeder, which includes a circular seed picking mechanism, and positioning and fixing holes are arranged on the seed picking mechanism. Several seed-taking ports are evenly distributed on the outer periphery of the seed-taking mechanism; two front and rear seed-taking nests with inner curved surfaces are respectively arranged in the seed-taking ports; the front seed-taking nest passes through the extension part of the front It is connected with the outer periphery of the seed collection mechanism, and the rear seed collection nest is connected with the periphery of the seed collection mechanism through the extension part of the rear seed collection nest; the center of the front seed collection nest faces outward, and the center of the rear seed collection nest faces inward. equipotential difference. The seed picking mechanism of the precision seeder has a reasonable structure, not only can realize precise seed picking with a small seed distance, but also has reliable working performance, smooth seed sorting, and no damage to seeds and seed jams.

Description

Seed picking mechanism of precision seeder

technical field

The invention belongs to the technical field of design and manufacture of agricultural machinery, in particular to a seed picking mechanism of a precision seeder.

Background technique

At present, there are two dominant types of mechanical precision hole seeders on the market, one is clamping self-locking seed picking device, the other is hole wheel type forced seeding device, clamping self-locking seed picking device Although the structure of the seeding device is simple, it is extremely poor in cleaning and filtering the seed coating and dust during work, and cannot automatically clean the seed chamber. What is more serious is that the clamping self-locking device is very sensitive to the sowing speed, and the sowing speed The restrictions are too strict, which is not conducive to the requirements of rushing time and moisture in spring sowing. The hole type forced seeding device has a simple structure and strong cleaning ability for the seed chamber, but because the shape hole has poor adaptability to the seeds, it is necessary to formulate a suitable hole type (species) according to the different sizes of the seeds. Nest), that is, the size and shape of the nest for planting and seeding should be suitable for the seeds to be sown. For sowing different types of seeds, it is necessary to make seeding wheels with different specifications of nests. However, the connection structure between the seed wheel and the hole sower is relatively complicated, and it is inconvenient, labor-intensive, time-consuming to replace the seed wheel, and affects the seeding work efficiency. Moreover, with the development of modern agricultural technology, precision seeding under high-density planting mode has also been widely used in agricultural production.

Present clamping type self-locking seed picking device and type hole wheel type forced seeding device have just reached the limit when the seed distance is small to a certain extent, and it is difficult to realize as wishing to further reduce the distance. For example, the minimum planting distance of the current cotton planter is generally about 10 centimeters, and it is very difficult to make it smaller.

Contents of the invention

The purpose of the present invention is to provide a seed picking mechanism of a precision seeder, which has stable and reliable working performance and is not limited by the type of seeds to be sown, and can sow stably and precisely. The sowing speed is fast and the seeding is stable and reliable. It can realize the picking of seeds with a small seed distance, and its structure is simple, easy to operate, labor-saving and time-saving.

The technical solution of the present invention: a seed picking mechanism of a precision seeder, including a circular seed picking mechanism, positioning and fixing holes are arranged on the seed picking mechanism, and the outer circumference of the seed picking mechanism is uniformly arranged There are several seed-taking openings; two front and rear seed-taking nests with inner arc surfaces are respectively arranged in the seed-taking ports; the front seed-taking nest is connected with the periphery of the seed-taking mechanism through the extension of the front seed-taking nest, and the rear picking nest is connected with the outer periphery of the seed-taking mechanism. The seed nest is connected to the outer periphery of the seed collection mechanism through the extended part of the rear seed collection nest; the heart of the front seed collection nest faces outward, and the heart center of the rear seed collection nest faces inward, and there is a certain equipotential difference between the two.

Preferably, the opening of the seed taking port is biased clockwise or counterclockwise. Preferably, the angle at which the opening of the seed taking port is biased clockwise or counterclockwise is an acute angle. Preferably, the extension part of the front seed collection hole is designed in a smooth arc shape and connected with the outer periphery of the seed collection mechanism. Preferably, the extension part of the rear seed-picking hole is designed in a smooth arc and connected with the outer periphery of the seed-picking mechanism. Preferably, the pre-retrieving seed nests and the rear-retrieving seed nests are either closely connected or connected at intervals. Preferably, two outer seed nests and inner seed nests that are connected side by side and also have equipotential differences can be arranged separately in the rear seed nest;

Beneficial effects: the seed picking mechanism of the precision seeder has a reasonable structure, not only can realize precise seed picking with a small seed distance, but also has reliable working performance, smooth seed sorting, and no damage or jamming of seeds.

Description of drawings

Accompanying drawing 1 is the schematic diagram of the main view structure of the invention; Fig. 2 is a rear view; Fig. 3 is a schematic diagram of taking seeds; among the figures, 1, taking a kind of mechanism; 2, taking a kind of mouth; Seed nest; 401, outer seed nest; 402, inner seed nest; 5, front seed nest extension; 6, rear seed nest extension; 7, positioning and fixing holes; 8, seeds.

Detailed ways

Embodiment 1. A seed-taking mechanism of a precision seeder, as shown in Fig. 1 and Fig. 2, comprises a circular-shaped seed-taking mechanism 1, and positioning and fixing holes 7 are arranged on said seed-taking mechanism 1 , the outer circumference of the seed-taking mechanism 1 is uniformly provided with several seed-taking ports 2; two pre-feeding nests 3 and rear seed-picking nests 4 with inner arc surfaces are respectively arranged in the seed-taking port 2; 3 is connected to the outer periphery of the seed collection mechanism 1 through the extension part 5 of the front seed collection nest, and the rear seed collection nest 4 is connected to the periphery of the seed collection mechanism 1 through the extension part 6 of the rear seed collection nest; The center of nest 4 faces inward, and the front is high and the rear is low, so there is a certain equipotential difference.

The opening of the seed taking port 2 is biased clockwise or counterclockwise. The angle at which the opening of the seed taking port 2 is biased clockwise or counterclockwise is an acute angle. The front extension part 5 of the seed collection nest is designed in a smooth arc shape and is connected with the outer periphery of the seed collection mechanism 1 . The extension part 6 of the rear seed picking nest is designed in a smooth arc shape and is connected with the outer periphery of the seed picking mechanism 1 . The preceding seed nest 3 and the rear seed nest 4 are either closely connected or connected at intervals. Two outer seed nests 401 and inner seed nests 402, which are connected side by side and also have equipotential differences, can be divided and arranged in the rear seed nest 4;

In practice, as shown in Figure 3, the arc-shaped seed opening of the circular seed picking mechanism is used as the seed grabbing part (the front picking nest) to grab the seeds 8 and send the seeds 8 to the rear with the rotation. Get the seed nest, because there is an equipotential difference in height between the rear seed nest and the front seed nest, the seed 8 will slide down along the trend, thereby completing the seed collection and the entire process of rowing seeds.

Claims (2)

1. a kind of Qu Zhong mechanisms of precision seeding machine, including being in circular Qu Zhong mechanisms（1）, in the Qu Zhong mechanisms（1） On positioning mounting hole is set（7）, it is characterised in that：Qu Zhong mechanisms（1）Periphery on be uniformly arranged several and take kind of a mouth （2）；Take kind of a mouth（2）Inside set respectively two have intrados before take kind of a nest（3）Kind of a nest is taken with after（4）；Before take kind of a nest（3） By preceding taking kind of a nest extension（5）With Qu Zhong mechanisms（1）Periphery is connected, after take kind of a nest（4）Kind of a nest extension is taken after（6）With Qu Zhong mechanisms（1）Periphery is connected；Before take kind of a nest（3）Feel resentful and face out, after take kind of a nest（4）Feel resentful inward-facing, it is low after height before the two, There are certain idiostatics；It is described to take kind of a mouth（2）Opening be inclined to clockwise or counterclockwise set angle be acute angle；Before described Take kind of a nest extension（5）For smooth cambered design and Qu Zhong mechanisms（1）Outer periphery is connected；Kind of a nest extension is taken after described（6） For smooth cambered design and Qu Zhong mechanisms（1）Outer periphery is connected；Kind of a nest is taken before described（3）Kind of a nest is taken with after（4）Between it is close It is connected.

2. Qu Zhong mechanisms according to claim 1, it is characterised in that：After take kind of a nest（4）Interior divisible setting two is side by side Connected also having takes kind of a nest outside idiostatic（401）Kind of a nest is taken with interior（402）.