Mousehole air-laid fertilizer delivery unit

Abstract

The mouse hole type airflow conveying fertilization unit belongs to agricultural machinery; a straw cutting disc knife assembly and a rectangular tube are respectively arranged on the front end and rear end of a unit frame, a tubular fertilizer applicator is arranged on the lower end of the rectangular tube and is communicated with each other, a conical hole opener is arranged on the front end of the tubular fertilizer applicator, a soil breaking and cutting resistance reducing knife is arranged on the front side of the rectangular tube and is located above the tubular fertilizer applicator, a fertilizer discharging through hole is arranged on the rear side lower part of the tubular fertilizer applicator, and a pressure airflow input tube is arranged on the upper side of the rectangular tube and is communicated with each other; the unit changes the operation mode of strip bottom fertilization in a clear ditch into strip bottom fertilization in a mouse hole type dark ditch, and cooperates with the pressure airflow conveying and discharging fertilizer, and has the characteristics of novel, unique, simple, reasonable structure, reliable operation, good operation quality, remarkable fertilizer saving effect, and providing high quality seedbed for the rooting, germination and growth of crops.

Description

Technical Field

[0001] This invention belongs to agricultural machinery and mainly relates to a rat hole-type airflow conveying fertilizer unit. Background Technology

[0002] To provide a favorable and high-quality seedbed environment for seed germination and plant growth, in Northeast my country, before spring sowing of dryland crops, basal fertilizer is first applied in strips on the seedbed of the ridges. Currently, this strip application is often accomplished using a double-disc furrow opener. First, open furrows are dug on the ridge surface, then the basal fertilizer is poured into the exposed furrows, and finally, the fertilizer is covered by soil gravity flow and compaction. However, years of practical experience have revealed that this method of basal fertilizer application not only causes significant damage to the seedbed on the ridges, but also, due to the high fluidity and speed of the dry soil with low moisture content, the dry soil flowing back into the furrows directly contacts the fertilizer at the bottom of the furrows. This results in slow fertilizer effectiveness, reduced fertilizer utilization efficiency, significant fertilizer loss and waste, and negatively impacts the quality of seed germination, ultimately reducing crop yield and quality. Summary of the Invention

[0003] The purpose of this invention is to address the problems existing in the prior art and, in combination with the actual needs of current mechanized base fertilizer strip application operations, to develop and design a new type of rat-hole type airflow conveying fertilizer unit. This unit aims to achieve the following: minimal damage to the ridge surface, high-quality fertilizer holes, moist soil in the fertilizer holes, a fertilizer hole environment conducive to rapid fertilizer effectiveness, reduced fertilizer loss and waste, high utilization efficiency, and to provide a high-quality seedbed environment for seed germination.

[0004] The purpose of this invention is achieved as follows: a straw-cutting disc blade assembly and a rectangular tube are respectively installed on the front and rear ends of a single-unit frame. A tubular fertilizer applicator is fixedly installed on the lower end of the rectangular tube, and the longitudinal center line of the tubular fertilizer applicator coincides with the longitudinal center line of the straw-cutting disc blade assembly. A conical hole opener is fixedly installed on the front end of the tubular fertilizer applicator. A soil-breaking and slit-cutting drag-reducing blade is fixedly installed on the front side of the rectangular tube, above the tubular fertilizer applicator. A fertilizer discharge through hole is opened on the lower rear wall of the tubular fertilizer applicator. The lowest point of the tubular fertilizer applicator is located above the lowest point of the straw-cutting disc blade assembly. A pressure airflow input pipe is installed on the upper side of the rectangular tube, communicating with the cavity of the rectangular tube. This constitutes a rat-hole type airflow delivery fertilizer unit.

[0005] This invention fundamentally changes the traditional and current method of applying base fertilizer in exposed open trenches. It injects base fertilizer into closed rat-hole-like fertilizer trenches created in the soil using a conical hole opener and a tubular fertilizer applicator, completing the strip application. After fertilization, there is no need to cover the soil back up, and the moist soil environment inside the closed rat-hole ensures the fertilizer takes effect quickly. The forced delivery of fertilizer by the pressurized airflow ensures the uniformity and consistency of the fertilizer application and avoids the occurrence of blockages. It has the characteristics of novel, unique, simple, and reasonable structure, good operation quality, reliable operation, few failures, strong versatility, and good fertilizer-saving effect, providing a high-quality seedbed for crop rooting, germination, growth and development, and increased yield and income. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the overall structure of a rat-hole type airflow delivery fertilization unit;

[0007] Figure 2 yes Figure 1 The right view.

[0008] Part number description in the image:

[0009] 1. Single frame; 2. Soil-breaking and slit-cutting blade; 3. Pressure airflow input pipe; 4. Rectangular tube; 5. Tubular fertilizer applicator; 5-1. Fertilizer discharge port; 6. Conical hole opener; 7. Straw cutting disc blade assembly. Detailed Implementation

[0010] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. A rat-hole type airflow conveying fertilizer unit includes a unit frame 1. A straw cutting disc assembly 7 and a rectangular tube 4 are respectively installed on the front and rear ends of the unit frame 1. A tubular fertilizer applicator 5 is fixedly installed on the lower end of the rectangular tube 4. The longitudinal center line of the tubular fertilizer applicator 5 coincides with the longitudinal center line of the straw cutting disc assembly 7. A conical hole opener 6 is fixedly installed on the front end of the tubular fertilizer applicator 5. A soil-breaking and slit-cutting drag-reducing blade 2 is fixedly installed on the front side of the rectangular tube 4, above the tubular fertilizer applicator 5. A fertilizer discharge through hole 5-1 is opened on the lower rear wall of the tubular fertilizer applicator 5. The lowest point of the tubular fertilizer applicator 5 is located above the lowest point of the straw cutting disc assembly 7. A pressure airflow input pipe 3 is installed on the upper side of the rectangular tube 4 and communicates with the cavity of the rectangular tube 4.

[0011] During operation, the invention is assembled onto the strip-shaped base fertilizer applicator via the single frame 1. Moving forward randomly, the fertilizer delivery pipe and blower on the applicator are connected to the fertilizer inlet at the upper end of the rectangular tube 4 and the outer port of the pressure airflow input pipe 3, respectively. The straw cutting disc assembly 7, which rolls within the soil layer, first cuts the straw on the seedbed strip, preventing and eliminating straw blockage at the rectangular tube 4. Then, the conical hole opener 6, located entirely within the soil layer, creates a rat-hole-type fertilizer trench. Fertilizer is delivered from the fertilizer delivery pipe into the cavity of the rectangular tube 4, flowing downwards under its own gravity. The positive pressure airflow from the blower on the applicator flows into the cavity of the rectangular tube 4 through the pressure airflow input pipe 3, forcibly pushing the fertilizer downwards. After entering the tubular fertilizer applicator 5, it is discharged into the rat-hole-type fertilizer trench from the lower rear discharge hole 5-1 and the rear port. The positive pressure airflow that has completed the conveying operation is discharged into the atmosphere through the rat hole-type fertilizer ditch and the soil slits cut by the soil breaking and drag reducing blade 2, without any air resistance.

Claims

1. A rat-hole type airflow delivery fertilizer unit, comprising a unit frame (1), characterized in that: A straw cutting disc assembly (7) and a rectangular tube (4) are installed on the front and rear ends of the single frame (1), respectively. A tubular fertilizer applicator (5) is fixedly installed on the lower end of the rectangular tube (4). The longitudinal center line of the tubular fertilizer applicator (5) coincides with the longitudinal center line of the straw cutting disc assembly (7). A conical hole opener (6) is fixedly installed on the front end of the tubular fertilizer applicator (5). A soil breaking and cutting drag reduction blade (2) is fixedly installed on the front side of the rectangular tube (4) above the tubular fertilizer applicator (5). A fertilizer discharge through hole (5-1) is opened on the lower rear wall of the tubular fertilizer applicator (5). The lowest point of the tubular fertilizer applicator (5) is located above the lowest point of the straw cutting disc assembly (7). A pressure airflow input pipe (3) is installed on the upper side of the rectangular tube (4) and is connected to the cavity of the rectangular tube (4).

Images