Air-suction indent type roller seed-metering device capable of automatically clearing seeds, preventing blocking and adjusting seeding rate

An air-suction pocket type and suction pocket-type technology, which is applied in the field of air-suction seed metering devices, can solve problems such as non-adjustable and changeable, difficult to remove, narrow application range, etc., and achieve a high degree of generalization and anti-blocking effect Good, wide range of effects

CN114557174APending Publication Date: 2022-05-31NORTHEAST AGRICULTURAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2022-05-31

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Abstract

The invention discloses an air-suction indent type roller seed-metering device capable of automatically clearing seeds, preventing blocking and adjusting the seeding rate, and belongs to agricultural machinery. A cylinder type seed filling cup is fixedly arranged in a pocket hole in an air suction pocket type roller, a suction nozzle body is axially and movably arranged in a cup hole of the cylinder type seed filling cup through threads, an air suction hole and a hollow cavity are coaxially and sequentially formed in the suction nozzle body in the axial direction and are communicated with each other, and the cylinder type seed filling cup is communicated with the hollow cavity through the air suction hole. A cross-shaped groove, a through hole and a limiting stop pin are respectively arranged on the suction nozzle body, a gravity rod which is coaxially and fixedly provided with a seed cleaning anti-blocking needle can be axially inserted into a hollow cavity of the suction nozzle body in a reciprocating motion manner, the seed cleaning anti-blocking needle is in insertion or separation insertion fit with an air suction hole in the suction nozzle body, and the gravity rod is in contact or separation contact fit with the limiting stop pin; according to the device, the seeding rate can be adjusted and changed according to different rice varieties and agricultural requirements, the application range is wide, the adaptive capacity is high, the seed filling, discharging and anti-blocking effects are good, the operation quality is high, and the use is reliable.
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Description

technical field

[0001] The invention belongs to agricultural machinery, and mainly relates to an air-suction seed metering device used for rice seedling raising and sowing. Background technique

[0002] At present, the air-suction socket-type roller seed metering device is mostly used for rice seedling seeding and seeding operations. Based on the advantages of mechanical socket filling, seeding and air-suction seed metering device, the seed metering device has a simple structure. , The reliable characteristics of filling and sucking seeds have become one of the main models for rice seedling raising and sowing operations. However, in the practice of production operations, it is found that the rice seeds adsorbed in the seed suction holes are prone to plugging faults, which are not only difficult to remove, but also affect and reduce the quality of sowing operations, reduce the sowing rate, and increase the empty sowing rate. In addition, the currently used air-suction socket...

Examples

Embodiment Construction

[0012] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. An air-suction socket-type roller seed metering device with automatic seed cleaning, anti-blocking and adjustable seeding rate, including an air-suction socket-type roller 1, and a plurality of sockets radially opened on the wall of the air-suction socket-type roller 1 Hole 2, on the upper part of the outer side of the cylinder wall of the air-suction socket-type cylinder 1, arrange and install the seed box 3, the cleaning brush 4 and the seed protection belt 5 in the clockwise direction of the circumference, in the socket hole 2 A cylindrical seed filling cup 6 is fixed inside, and the cylindrical seed filling cup 6 communicates with the seed box 3, and the suction nozzle body 7 is installed axially movable through threaded connection in the cup hole of the cylindrical seed filling cup 6, A suction hole 7-3 and a hollow cavity 7-2 are successively provi...