Particle delivery system of an agricultural row unit

Patent metadata

Field	Value
Publication number	US-11564346-B2
Application number	US-201916726501-A
Country	US
Kind code	B2
Filing date	Dec 24, 2019
Priority date	Dec 24, 2019
Publication date	Jan 31, 2023
Grant date	Jan 31, 2023

Abstract

A particle delivery system of an agricultural row unit includes a particle disc configured to receive a plurality of particles from a particle metering and singulation unit, and a particle belt configured to receive each particle of the plurality of particles from the particle disc and to expel the particle to a trench in soil. The particle disc is configured to accelerate each particle of the plurality of particles to a target particle transfer speed.

First claim

The invention claimed is:

1. A particle delivery system of an agricultural row unit, comprising:
a particle disc configured to receive a plurality of particles from a particle metering and singulation unit, wherein the particle disc is configured to accelerate each particle of the plurality of particles to a target particle transfer speed;
a particle belt configured to receive each particle of the plurality of particles from the particle disc and to expel the particle to a trench in soil; and
a controller comprising a memory and a processor, wherein the controller is configured to receive an input signal indicative of a particle transfer speed of each particle of the plurality of particles at a particle engagement section of the particle belt and to output an output signal indicative of instructions to adjust a rotation rate of the particle disc based on the particle transfer speed, such that the particle transfer speed reaches the target particle transfer speed as the particle reaches the particle engagement section of the particle belt.

2. The particle delivery system of claim 1 , comprising a particle transfer assembly configured to facilitate transfer of the particle from the particle disc to the particle belt.

3. The particle delivery system of claim 2 , wherein the particle transfer assembly comprises at least one guide wheel configured to guide the particle from the particle disc to the particle belt via rotation of the at least one guide wheel.

4. The particle delivery system of claim 2 , wherein the particle transfer assembly comprises a particle tube configured to at least partially direct the particle from the particle disc to the particle belt.

5. The particle delivery system of claim 4 , comprising an air flow device configured to output an air flow into the particle tube to direct the particle from the particle disc and into the particle tube.

6. The particle delivery system of claim 1 , wherein the controller is configured to determine the target particle transfer speed, the target particle exit speed, or both, based on a type of the plurality of particles, a ground speed of the agricultural row unit, a spacing between flights of the particle belt, a length of the particle belt, a belt speed of the particle belt, or a combination thereof.

7. The particle delivery system of claim 1 , wherein the particle belt is configured to accelerate the particle to a target particle exit speed greater than the target particle transfer speed.

8. A particle delivery system of an agricultural row unit, comprising:
a particle metering and singulation unit configured to meter a plurality of particles from a particle storage area;
a particle disc configured to receive each particle of the plurality of particles from a particle metering and singulation unit, wherein the particle disc is configured to accelerate the particle to a target particle transfer speed;
a particle belt configured to receive the particle from the particle disc and to expel the particle to a trench in soil; and
a controller comprising a memory and a processor, wherein the controller is communicatively coupled to a first motor communicatively coupled to the particle disc, and wherein the controller is configured to receive an input signal indicative of a particle transfer speed of each particle of the plurality of particles at a particle engagement section of the particle belt and to output an output signal to the first motor indicative of instructions to adjust a rotation rate of the particle disc based on the particle transfer speed, such that the particle transfer speed reaches the target particle transfer speed as the particle reaches the particle engagement section of the particle belt.

9. The particle delivery system of claim 8 , wherein the controller is configured to:
output the output signal indicative of instructions to increase the rotation rate of the particle disc in response to determining that the particle transfer speed is less than the target particle transfer speed and a difference between the particle transfer speed and the target particle transfer speed exceeds a threshold value; and
output the output signal indicative of instructions to decrease the rotation rate of the particle disc in response to determining that the particle transfer speed is greater than the target particle transfer speed and the difference between the particle transfer speed and the target particle transfer speed exceeds the threshold value.

10. The particle delivery system of claim 8 , wherein the particle belt is configured to accelerate each particle of the plurality of particles to a target particle exit speed greater than the target particle transfer speed, wherein the controller is communicatively coupled to a second motor coupled to a wheel configured to drive rotation of the particle belt, and wherein the controller is configured to receive an input signal indicative of a particle exit speed of each particle of the plurality of particles at a particle exit section of the particle belt and to output an output signal to the second motor indicative of instructions to adjust a belt speed of the particle belt based on the particle exit speed, such that the particle exit speed reaches the target particle exit speed as the particle is expelled from the particle exit section of the particle belt.

11. The particle delivery system of claim 10 , wherein the controller is configured to:
output the output signal indicative of instructions to increase the belt speed of the particle belt in response to determining that the particle exit speed is less than the target particle exit speed and a difference between the particle exit speed and the target particle exit speed exceeds a threshold value; and
output the output signal indicative of instructions to decrease the belt speed of the particle belt in response to determining that the particle exit speed is greater than the target particle exit speed and the difference between the particle exit speed and the target particle exit speed exceeds the threshold value.

12. The particle delivery system of claim 8 , comprising a vacuum source in fluid communication with a vacuum passage positioned adjacent to the particle disc, wherein the vacuum passage is configured to reduce air pressure within the vacuum passage to couple the particle to an aperture of the particle disc.

13. The particle delivery system of claim 8 , wherein the controller is configured to determine the target particle transfer speed based on a type of the plurality of particles, a ground speed of the agricultural row unit, a spacing between flights of the particle belt, a length of the particle belt, or a combination thereof.

Assignees

• Cnh Ind America Llc

Inventors

• Johnson Chad Michael
• Anderson Brian John
• Stanhope Trevor Philip
• Schoeny Christopher
• Raducha Kregg Jerome

Classifications

• A01C7/102 Primary

  Regulating or controlling the seed rate · CPC title

• A01C7/18

  Machines for depositing quantities of seed at intervals · CPC title

• A01C7/163

  Gravity distributors · CPC title

• A01C7/0443

  Seed singulators · CPC title

• A01C7/0445

  Seed ejectors · CPC title