Selectable-seeding-rate double-row side-charging precision rice dibbling feed

Abstract

The invention discloses a selectable-seeding-rate double-row side-charging precision rice dibbling feed, comprising a base housing, a seed guard, a spindle, an outer clamp, a rolling bearing, a bearing end cap I and a bearing end cap II. The base housing is mounted below a seeder; the spindle is provided with external splines; the seed guard is connected slidably with the inner wall of the base housing in the peripheral direction. The selectable-seeding-rate double-row side-feeding precision rice dibbling feed also comprises a first feeding disc, a second feeding disc, a first charging chamberhood and a second charging chamber hood; the first feeding disc and the second feeding disc are connected with the outer splines and are axially limited by the external clamp, the first charging chamber hood is connected with one side of the base housing, the second charging chamber hood is connected with the other side of the base housing, one end of the spindle is rotationally connected with the first charging chamber hood through the rolling bearing, the bearing end cap I is connected with the first charging chamber hood; the bearing end cap II is connected with the second charging chambercap; therefore, the selectable-seeding-rate double-row side-charging precision rice dibbling feed can meet the requirement on hill-direct-seeding and seed feeding of both conventional rice and hybridrice.

Description

technical field [0001] The invention belongs to the technical field of agricultural seeding machinery. Specifically, the invention relates to a double-row side-filling rice precision hole sowing seed metering device with optional sowing rate. Background technique [0002] Rice direct seeding planting technology has been widely used due to its advantages of labor saving, time saving, cost saving and efficiency increase. Among them, the precision hole direct seeding technology can adapt to the agronomic needs of rice planting in clusters at fixed distances. The rice seeds are distributed in the field in precise holes according to the required spacing, row spacing, and number of holes to create a suitable growth group structure of rice plants. Contribute to stable and increased production. [0003] The seed metering device is the core working part of the precision hole direct seeding technology, and its seed metering accuracy, uniformity and hole formation directly affect the ...

AI Technical Summary

Problems solved by technology

[0005] A large number of studies have shown that the mechanical seed metering device is greatly affected by the seeding frequency. When the forward speed of the seeder is high, the corresponding seeding frequency is required to be high, and the speed of the seeding part needs to be increased. On the contrary, the hole filling If the seeding time is reduced, the number of seeds per hole planting will be uncertain, and the seeding performance will deteriorate. At present, there is no seeding device that can reduce the speed of the seeding part by changing the number of holes to maintain the seeding performance at high seeding frequency.

[0006] At the same time, the current rice mechanical seed metering device generally has a seed cleaning device, which increases the probability of mechanical damage to rice seeds, and the seed protection device and the seeding position of the seed metering device are fixed, which is inconvenient to adjust, and it is difficult to adapt to different varieties of rice and different species. The seeding demand under the seeding frequency affects the effect of seeding and hole formation of the seed metering device

Images