Particle delivery system of an agricultural row unit

Patent metadata

Field	Value
Publication number	US-11523556-B2
Application number	US-201916726598-A
Country	US
Kind code	B2
Filing date	Dec 24, 2019
Priority date	Dec 24, 2019
Publication date	Dec 13, 2022
Grant date	Dec 13, 2022

Abstract

A particle delivery system of an agricultural row unit includes a first particle belt configured to receive a particle from a particle metering and singulation unit, a second particle belt configured to receive the particle from the first particle belt and to expel the particle to a trench in soil, and a particle transfer assembly configured to facilitate transfer of the particle from the first particle belt to the second particle belt. The first particle belt is configured to accelerate the particle to a target particle transfer speed, and the second particle belt is configured to accelerate the particle to a target particle exit speed greater than the target particle transfer speed.

First claim

The invention claimed is:

1. A particle delivery system of an agricultural row unit, comprising:
a first particle belt configured to receive a particle from a particle metering and singulation unit;
a second particle belt comprising a particle engagement section configured to receive the particle from the first particle belt and a particle exit section to expel the particle to a trench in soil;
a particle transfer assembly configured to facilitate transfer of the particle from the first particle belt to the particle engagement section of the second particle belt; 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 the particle at the particle engagement section of the second particle belt; and
output an output signal indicative of instructions to adjust a belt speed of the first particle belt, such that the particle transfer speed reaches a target particle transfer speed.

2. The particle delivery system of claim 1 , wherein the controller is configured to determine the target particle transfer speed based on a type of the particle, a ground speed of the agricultural row unit, a spacing between opposing flights of the first particle belt, a spacing between opposing flights of the second particle belt, a belt speed of the second particle belt, or a combination thereof.

3. The particle delivery system of claim 1 , wherein the controller is configured to:
output the output signal indicative of instructions to increase the belt speed of the first particle belt 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 belt speed of the first particle belt 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.

4. The particle delivery system of claim 1 , wherein the particle transfer assembly comprises a particle tube configured to at least partially direct the particle from the first particle belt to the particle engagement section of the second particle belt.

5. The particle delivery system of claim 1 , wherein the particle transfer assembly is configured to accelerate the particle between the first particle belt and the particle engagement section of the second particle belt, and the controller is configured to output a second output signal indicative of instructions to control operation of the particle transfer assembly, such that the first particle belt and the particle transfer assembly accelerate the particle to the target particle transfer speed.

6. The particle delivery system of claim 5 , comprising an air flow system configured to provide an air flow to accelerate the particle from the first particle belt to the particle engagement section of the second particle belt, and the second output signal is indicative of instructions to control a flow rate of the air flow provided by the air flow system.

7. The particle delivery system of claim 5 , wherein the particle transfer assembly comprises at least one guide wheel configured to guide the particle from the first particle belt to the particle engagement section of the second particle belt via rotation of the at least one guide wheel, and the second output signal is indicative of instructions to control a rotation rate of the at least one guide wheel.

8. A particle delivery system of an agricultural row unit, comprising:
a first particle belt configured to receive a particle from a particle metering and singulation unit;
a second particle belt comprising a particle engagement section configured to receive the particle from the first particle belt and a particle exit section to expel the particle to a trench in soil;
a particle transfer assembly configured to facilitate transfer of the particle from the first particle belt to the particle engagement section of the second particle belt; and
a controller comprising a memory and a processor, wherein the controller is configured to:
receive an input signal indicative of a particle exit speed of the particle at the particle exit section of the second particle belt; and
output an output signal indicative of instructions to adjust a belt speed of the second particle belt, such that the particle exit speed reaches a target particle exit speed.

9. The particle delivery system of claim 8 , wherein the controller is configured to:
output the output signal indicative of instructions to increase the belt speed of the second 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 second 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.

10. The particle delivery system of claim 8 , wherein the controller is configured to determine the target particle exit speed based on a type of the particle, a ground speed of the agricultural row unit, a spacing between opposing flights of the first particle belt, a spacing between opposing flights of the second particle belt, or a combination thereof.

11. The particle delivery system of claim 8 , wherein the particle transfer assembly comprises a pair of guide wheels configured to rotate in opposite directions to guide the particle between the pair of guide wheels from the first particle belt to the particle engagement section of the second particle belt.

12. The particle delivery system of claim 11 , wherein the controller is configured to:
receive an input signal indicative of a particle transfer speed of the particle at the particle engagement section of the second particle belt; and
output an output signal indicative of instructions to adjust a belt speed of the first particle belt, a rotation rate of the pair of guide wheels, or both, such that the particle transfer speed reaches a target particle transfer speed.

Assignees

• Cnh Ind America Llc

Inventors

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

Classifications

• A01C7/082 Primary

  Ducts, distribution pipes or details thereof for pneumatic seeders · CPC title

• A01C7/20 Primary

  Parts of seeders for conducting and depositing seed · CPC title

• A01C7/102

  Regulating or controlling the seed rate · CPC title

• A01C7/046

  with perforated seeding discs · CPC title

• A01C7/0445

  Seed ejectors · CPC title