Agricultural tillage implement fold/raise and lower control

Patent metadata

Field	Value
Publication number	US-10070574-B2
Application number	US-201615087168-A
Country	US
Kind code	B2
Filing date	Mar 31, 2016
Priority date	Dec 2, 2014
Publication date	Sep 11, 2018
Grant date	Sep 11, 2018

Abstract

An agricultural tillage implement with a hydraulic system having a left wing hydraulic subsystem supplying hydraulic pressure and flow to an outer left wing hydraulic circuit for actuating the actuator of an outer left wing wheel assembly, and a right hydraulic subsystem supplying hydraulic pressure and flow to an outer right wing hydraulic circuit for actuating an actuator of an outer right wing wheel assembly; the hydraulic system additionally having at least one hydraulic flow divider dividing hydraulic flow and pressure between the outer left wing hydraulic circuit and the outer right wing hydraulic circuit, the at least one hydraulic flow divider being configured to coordinate the motion of the outer left wing and the outer right wing wheel assemblies.

First claim

What is claimed is:

1. An agricultural tillage implement, comprising:
a main section including a pull hitch extending in a travel direction;
a plurality of foldable wing sections coupled with the main section, the plurality of foldable wing sections including an outer left wing section and an outer right wing section;
a plurality of ground engaging tilling elements coupled to one of the main section and to the plurality of foldable wing sections;
a plurality of wheel assemblies, each wheel assembly including an actuator, the plurality of wheel assemblies including a first plurality of wheel assemblies associated with the main section and a second plurality of wheel assemblies associated with the plurality of wing sections, the actuator of the wheel assembly of each wing section being individually adjustable to thereby provide depth control of the tilling elements when the tillage implement is in an operational mode, the second plurality of wheel assemblies including an outer left wing wheel assembly and an outer right wing wheel assembly; and
a hydraulic system having a left wing hydraulic subsystem supplying hydraulic pressure and flow to an outer left wing hydraulic circuit for actuating the actuator of the outer left wing wheel assembly, and a right wing hydraulic subsystem supplying hydraulic pressure and flow to an outer right wing hydraulic circuit for actuating the actuator of the outer right wing wheel assembly; the hydraulic system additionally having at least one hydraulic proportional flow divider dividing hydraulic flow and pressure between the outer left wing hydraulic circuit and the outer right wing hydraulic circuit, the at least one hydraulic proportional flow divider being configured to coordinate the motion of the outer left wing wheel assembly and the outer right wing wheel assembly.

2. The agricultural tillage implement of claim 1 , wherein the second plurality of wheel assemblies including an intermediate left wing wheel assembly and an intermediate right wing wheel assembly, the left wing hydraulic subsystem further includes an intermediate left wing hydraulic circuit supplying hydraulic pressure and flow for actuating the actuator of the intermediate left wing wheel assembly, and the right wing hydraulic subsystem having an intermediate right hydraulic circuit supplying hydraulic pressure and flow for actuating the actuator of the intermediate right wing wheel assembly; the hydraulic proportional flow divider dividing hydraulic flow and pressure between the intermediate left wing hydraulic circuit and the intermediate right wing hydraulic circuit, the at least one hydraulic proportional flow divider being configured to coordinate the motion of the intermediate left wing wheel assembly and the intermediate right wing wheel assembly.

3. The agricultural tillage implement of claim 2 , wherein the hydraulic system is configured to sequentially actuate the outer wing hydraulic circuits then the intermediate wing hydraulic circuits when transitioning from an operational mode to a transport mode.

4. The agricultural tillage implement of claim 2 , wherein the second plurality of wheel assemblies including an inner left wing wheel assembly and an inner right wing wheel assembly, the left wing hydraulic subsystem further includes an inner left wing hydraulic circuit supplying hydraulic pressure and flow for actuating the actuator of the inner left wing wheel assembly, the right wing hydraulic subsystem including an inner right hydraulic circuit supplying hydraulic pressure and flow for actuating the actuator of the inner right wing wheel assembly; the hydraulic proportional flow divider dividing hydraulic flow and pressure between the inner left wing hydraulic circuit and the inner right wing hydraulic circuit, the at least one hydraulic proportional flow divider being configured to coordinate the motion of the inner left wing wheel assembly and the inner right wing wheel assembly.

5. The agricultural tillage implement of claim 4 , wherein the hydraulic system is configured to sequentially actuate the outer wing hydraulic circuits then the intermediate wing hydraulic circuits then the inner wing hydraulic circuits when transitioning from an operational mode to a transport mode.

6. The agricultural tillage implement of claim 4 , wherein the hydraulic system is configured to sequentially actuate the inner wing hydraulic circuits then the intermediate wing hydraulic circuits then the outer wing hydraulic circuits when transitioning the implement from a transport mode to an operational mode.

7. The agricultural tillage implement of claim 4 , wherein the hydraulic system further includes at least one hydraulic connection between the outer wing hydraulic circuits and the inner wing hydraulic circuits.

8. The agricultural tillage implement of claim 4 , wherein the hydraulic system further includes at least one hydraulic connection between the intermediate wing hydraulic circuits and the inner wing hydraulic circuits.

9. The agricultural tillage implement of claim 4 , wherein the hydraulic system further includes at least one hydraulic connection between the intermediate wing hydraulic circuits and the outer wing hydraulic circuits.

10. The agricultural tillage implement of claim 4 , wherein the hydraulic proportional flow divider is configured to divide the hydraulic fluid flow for each of the outer wing hydraulic circuits, the intermediate wing hydraulic circuits and the inner wing hydraulic circuits.

11. A hydraulic system for use with an agricultural tillage implement having a main section including a pull hitch extending in a travel direction, a plurality of foldable wing sections coupled with the main section, the plurality of foldable wing sections including an outer left wing section and an outer right wing section, a plurality of ground engaging tilling elements coupled to the main section and to the plurality of foldable wing sections, and a plurality of wheel assemblies, each wheel assembly including an actuator, the plurality of wheel assemblies including a first plurality of wheel assemblies associated with the main section and a second plurality of wheel assemblies associated with the plurality of wing sections, the second plurality of wheel assemblies including an outer left wing wheel assembly and an outer right wing wheel assembly, the hydraulic system comprising:
a left wing hydraulic subsystem supplying hydraulic pressure and flow to an outer left wing hydraulic circuit for actuating the actuator of the outer left wing wheel assembly;
a right wing hydraulic subsystem supplying hydraulic pressure and flow to an outer right wing hydraulic circuit for actuating the actuator of the outer right wing wheel assembly; and
at least one hydraulic proportional flow divider dividing hydraulic flow and pressure between the outer left wing hydraulic circuit and the outer right wing hydraulic circuit, the at least one hydraulic proportional flow divider being configured to coordinate the motion of the outer left wing wheel assembly and the outer right wing wheel assembly.

12. The hydraulic system of claim 11 , wherein the second plurality of wheel assemblies include an intermediate left wing wheel assembly and an intermediate right wing wheel assembly, the left wing hydraulic subsystem having an intermediate left wing hydraulic circuit supplying hydraulic pressure and flow to actuate the actuator of the intermediate left wing wheel assembly, the right wing hydraulic subsystem having an intermediate right hydraulic circuit supplying hydraulic pressure and flow to actuate the actuator of the intermediate right wing wheel assembly, the hydraulic proportional flow divider dividing hydr

Assignees

• Cnh Ind America Llc

Inventors

• Wileniec Mark J
• Shah Kena
• Henry James W

Classifications

• A01B63/22

  operated by hydraulic or pneumatic means · CPC title

• A01B73/048

  the axis being oriented in transverse direction (A01B73/042 takes precedence) · CPC title

• A01B73/046 Primary

  each folding frame part being foldable in itself · CPC title

• A01B21/083

  of the type comprising four individual disk groups each pivotally connected at fixed locations to a substantially rigid frame · CPC title

• A01B73/02

  Folding frames · CPC title