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Small positive and negative pressure double-acting pneumatic-type vegetable precision seeder

A positive and negative pressure, double-action technology, applied in the field of agricultural machinery, can solve the problems of low seeding efficiency and low precision, and achieve the effect of conveniently emptying seeds, solving sticky discs, and realizing seeding depth

Pending Publication Date: 2019-12-03
SHANDONG UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a small positive and negative pressure double-acting pneumatic vegetable precision seeder to solve the problems of low seeding efficiency and low precision in the prior art

Method used

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  • Small positive and negative pressure double-acting pneumatic-type vegetable precision seeder
  • Small positive and negative pressure double-acting pneumatic-type vegetable precision seeder
  • Small positive and negative pressure double-acting pneumatic-type vegetable precision seeder

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Embodiment 1

[0044] This embodiment provides a small positive and negative pressure double-acting pneumatic vegetable precision seeder, such as Figure 1-9 As shown, it includes a frame 9, a sowing unit, a plant spacing adjustment gearbox 12, front and rear pressing wheels 10, 17, two side traveling wheels 14, a blower fan 2 and a power system;

[0045] The sowing unit is a pneumatic sowing unit, which is provided with a seed box 5, a seed meter 6, a ditching and sorting device 13, a three-point profiling mechanism, a row suppression device 15 and a depth-limiting adjustment device 7. The seed metering device 6 is a positive and negative pressure double-acting seed metering device, the rear is connected with the frame 9 through the parallel axis, and the front is connected with the depth limit adjustment device 7 through the locking clip, and the depth limit adjustment device 7 is hung by U-shaped bolts. Connected to the crossbeam of the frame 9, the ditching and sorting device 13 is insta...

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Abstract

The invention discloses a small positive and negative pressure double-acting pneumatic-type vegetable precision seeder. The seeder comprises a rack, a seeding unit, a plant spacing adjustment gearbox,front and rear press wheels, walking wheels at the two sides, a fan and a power system; the front and rear press wheels are arranged at the two ends of the rack in the forward and backward direction,the power system is arranged on the rack, the fan is connected with the power system and connected with the seeding unit through an air pipe, the seeding unit is movably connected to the rack, and the gearbox is rotatably connected with the front press wheel and arranged on the rack; positive and negative pressure is generated by supplying kinetic energy to the fan through the power system, an airway disc achieves the separation of the positive and negative pressure, vegetable seeds are prevented from being attached into a seed discharging disc of the seeding unit, the seeding unit is movablyconnected to the rack, row spacing adjustment is achieved, the problem of low seeding precision of vegetable seeds with irregular seed shapes and low mass is solved, the vegetable seeding precision and efficiency are improved, and the seeder is clear in principle and has use prospects.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to a small positive and negative pressure double-acting pneumatic vegetable precision seeder. Background technique [0002] my country is a large producer of facility agriculture, ranking first in the world in terms of area and output. However, compared with foreign countries, the level of mechanization and intelligence of facility agriculture in my country is relatively low. Vegetable seeds are irregular in shape, light in weight, and difficult to sow. Existing models generally use external grooved wheel seed metering devices, which have low operating efficiency and low sowing accuracy. Therefore, there is an urgent need to develop a high-efficiency, high-quality vegetable precision seeder to improve the mechanization level of the vegetable planting industry. Contents of the invention [0003] The purpose of the present invention is to provide a small positive and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C7/08
CPCA01C7/081A01C7/082A01C7/084
Inventor 张银平李晓冉刁培松王占滨苏洪忠迟岩杰闫文玺
Owner SHANDONG UNIV OF TECH
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