The present disclosure relates generally to finishing assemblies for agricultural implements.
It is well known that to attain the best agricultural performance from a piece of land, a farmer must cultivate the soil, typically through a tillage operation. Common tillage operations include plowing, harrowing, and sub-soiling. Farmers perform these tillage operations by pulling a tillage implement behind an agricultural work vehicle, such as a tractor. Depending on the crop selection and the soil conditions, a farmer may need to perform several tillage operations at different times over a crop cycle to properly cultivate the land to suit the crop choice.
Modem farm practices demand a smooth, level field with small clods of soil in the fall and spring of the year. In this regard, residue must be cut, sized, and mixed with soil to encourage the residue to decompose and not build up following subsequent passes of machinery. To achieve such soil conditions, it is known to utilize rolling baskets, such as crumbler reels, to produce smaller, more uniform clod sizes and to aid in the mixing of residue. In some instances, pairs of rolling baskets or “double-basket assemblies” are rigidly coupled to a portion of the implement frame to condition the field during each pass. However, in such instances, uneven pressure may be applied to the baskets of each double-basket assembly. To prevent such uneven pressure, the rolling baskets of each double-basket assembly are fixed relative to each other by a hanger that is pivotably coupled to a portion of the implement such that the rolling baskets are configured to pivot together relative to the frame of the implement to follow the ground contour with more even pressure on each basket. However, since the double-basket assembly is allowed to freely pivot, a harmonic oscillation effect may occur, which undesirably causes a “washboard” or bumpy finishing of the field.
Certain embodiments commensurate in scope with the originally claimed subject matter are summarized below. These embodiments are not intended to limit the scope of the claimed subject matter, but rather these embodiments are intended only to provide a brief summary of possible forms of the disclosure. Indeed, the disclosure may encompass a variety of forms that may be similar to or different from the embodiments set forth below.
In one embodiment, a finishing assembly for an agricultural implement is provided. The finishing assembly includes a first rolling basket and a second rolling basket. The finishing assembly also includes a basket support assembly coupled to the first rolling basket and the second rolling basket and configured to support the first rolling basket and the second rolling basket relative to each other. The finishing assembly further includes a linkage pivotably coupled to the basket support assembly at a first pivot point. The finishing assembly even further includes a hydraulic actuator pivotably coupled to the basket support assembly at a second pivot point, wherein the hydraulic actuator is configured to damp pivoting of the basket support assembly about the first pivot point in both a first pivot direction and a second pivot direction, the second pivot direction being opposite the first pivot direction.
In another embodiment, an agricultural implement is provided. The agricultural implement includes a frame member and a finishing assembly coupled to the frame member via a mounting bracket. The finishing assembly includes a first rolling basket and a second rolling basket. The finishing assembly also includes a basket support assembly coupled to the first rolling basket and the second rolling basket and configured to support the first rolling basket and the second rolling basket relative to each other. The finishing assembly further includes a linkage pivotably coupled to the basket support assembly at a first pivot point. The finishing assembly even further includes a hydraulic actuator pivotably coupled to the basket support assembly at a second pivot point, wherein the hydraulic actuator is configured to damp pivoting of the basket support assembly about the first pivot point in both a first pivot direction and a second pivot direction, the second pivot direction being opposite the first pivot direction.
In a further embodiment, a system is provided. The system includes a finishing assembly for an agricultural implement. The finishing system includes a first rolling basket and a second rolling basket. The finishing assembly also includes a basket support assembly coupled to the first rolling basket and the second rolling basket and configured to support the first rolling basket and the second rolling basket relative to each other. The finishing system further includes a linkage pivotably coupled to the basket support assembly at a first pivot point. The finishing system even further includes a mounting bracket, wherein the mounting bracket is configured to be fixed to a frame member of the agricultural implement, and wherein the linkage is coupled to the mounting bracket. The finishing system still further includes a downforce actuator pivotably coupled to the mounting bracket and the linkage. The finishing system yet further includes a hydraulic actuator pivotably coupled to the basket support assembly at a second pivot point. The system also includes one or more sensors coupled to components of the finishing assembly. The system further includes a controller communicatively coupled to the one or more sensors, wherein the controller is configured to selectively apply a biasing force, via the hydraulic actuator, to either the first rolling basket or the second rolling basket based on feedback from the one or more sensors.
These and other features, aspects, and advantages of the present disclosure will become better understood when the following detailed description is read with reference to the accompanying drawings in which like characters represent like parts throughout the drawings, wherein:
One or more specific embodiments of the present disclosure will be described below. In an effort to provide a concise description of these embodiments, all features of an actual implementation may not be described in the specification. It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another. Moreover, it should be appreciated that such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure.
When introducing elements of various embodiments of the present disclosure, the articles “a,” “an,” “the,” and “said” are intended to mean that there are one or more of the elements. The terms “comprising,” “including,” and “having” are intended to be inclusive and mean that there may be additional elements other than the listed elements. Any examples of operating parameters and/or environmental conditions are not exclusive of other parameters/conditions of the disclosed embodiments.
The present disclosure is generally directed to a hydraulic control of a finishing assembly (e.g., double-basket assembly) of an agricultural implement. In particular, a hydraulic actuator (e.g., hydraulic cylinder) acts as a damping element to minimize back-and-forth oscillations of the finishing assembly about a pivot point. Minimizing the oscillations enables the finishing assembly to be utilized to make a smooth, level field with small clods of soil. In addition, the hydraulic actuator is configured to selectively apply a bias force to one of the baskets of the double-basket assembly based on feedback from sensors disposed throughout the finishing assembly.
Referring now to the drawings,
As shown, the frame 16 may extend in a longitudinal direction (e.g., as indicated by arrow 18 in
In several embodiments, the frame 16 may include one or more sections. For example, as shown, in the illustrated embodiment, the frame 16 may include a main or center section 32 positioned centrally between the first and second sides 26, 28 of the frame 16. The frame 16 may also include a first wing section 34 positioned adjacent to the first side 26 of the frame 16. Similarly, the frame 16 may also include a second wing section 36 positioned adjacent to the second side 28 of the frame 16. The first and second wing sections 34, 36 may be pivotably coupled to the main section 32 of the frame 16. In this respect, the first and second wing sections 34, 36 may be configured to fold up relative to the main section 32 to reduce the lateral width of the implement 10 to permit, for example, storage or transportation of the implement 10 on a road. However, in other embodiments, the frame 16 may include any suitable number of frame sections.
The implement 10 may further include various wheel assemblies coupled to the frame 16 to support the frame 16 relative to the ground and to facilitate towing the implement 10 in the direction of travel 12. Specifically, in several embodiments, the implement 10 may include a plurality of center support wheel assemblies 42 located centrally on the frame 16 between its forward and aft ends 20, 22, with the wheel assemblies 42 being spaced apart from one another in the lateral direction 24 of the implement 10 between its first and second sides 26, 28. In addition, the implement 10 may also include a plurality of forward support wheel assemblies 44 coupled to the frame 16 adjacent to the forward end 20 of the frame 16, with the wheel assemblies 44 being spaced apart from one another in the lateral direction 24 of the implement 10 between its first and second sides 26, 28. As shown in
Referring still to
It should be appreciated that, in addition to the gangs 48 of disc blades 50 and the rolling baskets 102 of the finishing assemblies 100 shown in
It should be appreciated that the configuration of the implement 10 described above and shown in
Referring now to
In general, the finishing assembly 100 includes a pair of the rolling baskets 102. For instance, as particularly shown in the illustrated embodiment, the finishing assembly 100 includes a first rolling basket 102A and a second rolling basket 102B. In general, the rolling baskets 102A, 102B may have any suitable configuration that allows the baskets to generally function as described herein. As shown in
As shown in the illustrated embodiment, the finishing assembly 100 may further include a basket support assembly 104 configured to support the rolling baskets 102A, 102B relative to each other. The basket support assembly 104 may generally include one or more hangers 106 configured to support the rolling baskets 102 for rotation relative to the ground, such as by including a hanger 106 at each of the opposed ends of the baskets 102. For example, as shown in the illustrated embodiment, each hanger 106 has a forwardly extending arm 106A relative to the direction of travel 12 of the implement 10, and a rearwardly extending arm 106B relative to the direction of travel 12 of the implement 10. In such an embodiment, the forward-most basket (e.g., the first rolling basket 102A) may be rotatably coupled to the forwardly extending arm 106A of the hanger 106 by a first rotational coupling 108A (e.g., a bearing(s) and associated mounting structure) such that the rolling basket 102A is rotatable about a first rotational axis 110A. Similarly, the rearward-most basket (e.g., the second rolling basket 102B) may be rotatably coupled to the rearwardly extending arm 106B of the hanger 106 by a second rotational coupling 108B (e.g., a bearing(s) and associated mounting structure) such that the rolling basket 102B is rotatable about a second rotational axis 110B spaced apart from the first rotational axis 110A along the direction of travel 12 of the implement 10. Additionally, the forwardly and rearwardly extending arms 106A, 106B of the hanger 106 are fixed relative to each other such that the rolling baskets 102A, 102B are supported in a fixed relationship relative to each other. More particularly, the rolling baskets 102A, 102B are supported relative to each other via the hanger 106 such that the rotational axes 110A, 110B of the first and second rolling baskets 102A, 102B are fixed relative to each other.
In the illustrated embodiment, the basket support assembly 104 further includes a toolbar 112 configured to support one or more of the hangers 106. More particularly, the toolbar 112 may be rigidly coupled to the hangers 106 of the rolling baskets 102A, 102B to support each hanger 106 relative to the ground. For example, in the illustrated embodiment, the toolbar 112 extends along the lateral direction 24 and is received within or extends through an opening 114 defined by each of the hangers 106. In such an embodiment, the toolbar 112 may be coupled to each hanger 106 at or adjacent to the location at which the toolbar 112 is received within or extends through the associated opening 114. The toolbar 112 may, in some embodiments, support hangers 106 for more than one pair of rolling baskets 102.
Additionally, as shown in the illustrated embodiment, the basket support assembly 104 includes a pivot bracket 120 fixedly coupled to the toolbar 112. For example, in some embodiments, the pivot bracket 120 is fixedly coupled to the toolbar 112 by one or more clamp bolts 122, each of which is received around the toolbar 112 and fixed at its ends to the pivot bracket 120. It should be appreciated, however, that in other embodiments, the pivot bracket 120 may be fixedly coupled to the toolbar 112 by any other suitable attachment means, such as by coupling the pivot bracket 120 to the toolbar 112 via welding.
Generally, the pivot bracket 120 may function to pivotably couple the basket support assembly 104 to a hydraulic actuator 121 (e.g., hydraulic cylinder) and a linkage 128 of the finishing assembly 100. More particularly, as shown in
The first end 124A of the linkage 128 is pivotably coupled at the first end 124A to the pivot bracket 120 at a pivot point 130, which defines a pivot axis 130A about which the basket support assembly 104 is configured to pivot relative to the hydraulic actuator 121 and the linkage 128. Specifically, as shown in
Additionally, as shown in
The linkage 128 is coupled to the pivot bracket 120 via a fastener 150 positioned at the pivot point 134. The fastener 150 is configured to be pivotably received within the pivot bracket 120 such that the fastener 150 pivots about the pivot axis 142 relative to the pivot bracket 120. The fastener 150 extends through an opening in the end 127 of the hydraulic actuator 121.
In accordance with aspects of the present subject matter, to allow oscillations of the basket support assembly 104 to be at least partially damped or minimized during operation of the implement 10, the finishing assembly 100 further includes at least one damping element, the hydraulic actuator 121, provided in operative association with the basket support assembly 104. More particularly, in several embodiments, the hydraulic actuator 121 is configured to damp pivoting of the basket support assembly 104 about the pivot point 130 in both the first pivot direction R1 and the second pivot direction R2.
For example, when one of the baskets (e.g., the first basket 102A) encounters rocks or other impediments in the field, the basket support assembly 104 is urged to pivot about the pivot axis 130A in the second pivot direction R2. In such instance, the hydraulic actuator 121 may be configured to damp such pivotal motion. Similarly, when one of the baskets (e.g., the first basket 102A) encounters a drop in the field, the basket support assembly 104 will tend to pivot about the pivot axis 130A in the first pivot direction R1. In such instance, the hydraulic actuator 121 may be configured to damp such pivotal motion. As such, the hydraulic actuator 121 enables the rolling baskets 102A, 102B to work the ground more evenly when encountering changes in the field and to experience less oscillation for a shorter amount of time, which results in a smoother field surface. Additionally, the hydraulic actuator 121 “cushions” the impact caused by larger impediments or divots, which may be used to protect various elements of the finishing assembly 100.
In addition, the hydraulic actuator 121 is configured to selectively apply a biasing force (as the operator desires) to either the rolling basket 102A or the rolling basket 102B (i.e., apply more or all biasing force to one of the two rolling baskets 102A, 102B). As mentioned above, the downforce actuator 138 lowers the baskets 102A, 102B into contact with the ground to apply a desired downforce (DF, DR) to the baskets 102A, 102B. The hydraulic actuator 121 includes a base or piston 160 coupled to a rod 162. The piston 160 moves a distance or length, LC, between a fully retracted position and an extended position due to pressures exerted on both sides of the piston 160 (e.g., pressure on rod side, PR, and pressure on the base or piston side, PB). The pressures PB and PR can be adjusted to provide a force bias to the forward basket 102A and the rear basket 102B and their associated downforces, DF and DR. For example, if PB is greater than PR, then a force bias is provided to the rear basket 102B. If PR is greater than PB, then a force bias is provided to the forward basket 102A. The force bias exerted by the hydraulic actuator 121 is balanced by a downforce pressure, PD, within the downforce actuator 138 via engagement of the baskets 102A, 102B with the ground. A piston 163 (e.g., coupled to the rod 133) of the downforce actuator 138 moves a distance or length, LD, between a fully retracted position and an extended position to set the PD.
The force bias exerted by the hydraulic actuator 121 may be varied respect to LD or LC in conjunction with PD. In certain embodiments, the hydraulic actuator 121 is configured to selectively apply a biasing force to either the rolling basket 102A or the rolling basket 102B based on feedback received from sensors associated with (coupled to or disposed within components of the finishing assembly 100).
The work vehicle 164 includes a controller 165 communicatively coupled to the sensors 166, 168. The controller 165 is configured to receive feedback from the sensors 166, 168. The feedback relates to a position (LC) of the hydraulic actuator 121, a pressure differential (e.g., between PR and PB) across the hydraulic actuator 121, a position (LD) of the downforce actuator 138, and/or a pressure (PD) in the downforce actuator 138. Based on this feedback, the controller 165 can control the positions of the hydraulic actuator 121 and the downforce actuator 138 (e.g. via actuators such as valve spools). By controlling the position of the hydraulic actuator 121 and/or the downforce actuator 138, the controller 165 can control how much biasing force is selectively applied to each of the baskets. In addition, the controller 165 can control the downforce exerted on the baskets. The controller 165 is also coupled to an input device 170 (e.g., touchscreen, switch, button, joystick, keyboard, etc.) that enables the operator to provide an input to control the finishing assembly 100 (e.g., selecting a particular basket to apply a biasing force to).
The controller 165 may include a memory 172 and a processor 174. In some embodiments, the processor 174 may include one or more general purpose processors, one or more application specific integrated circuits, one or more field programmable gate arrays, or the like. Additionally, the memory 172 may be any tangible, non-transitory, computer readable medium that is capable of storing instructions (e.g., related to applying biasing forces to the baskets based on sensor feedback, determining a position of a cylinder, determining a depth of the baskets, etc.) executable by the processor 174 and/or data that may be processed by the processor 174. In other words, the memory 172 may include volatile memory, such as random access memory, or non-volatile memory, such as hard disk drives, read only memory, optical disks, flash memory, and the like.
While only certain features have been illustrated and described herein, many modifications and changes will occur to those skilled in the art. It is, therefore, to be understood that the appended claims are intended to cover all such modifications and changes as fall within the true spirit of the disclosure.
The techniques presented and claimed herein are referenced and applied to material objects and concrete examples of a practical nature that demonstrably improve the present technical field and, as such, are not abstract, intangible or purely theoretical. Further, if any claims appended to the end of this specification contain one or more elements designated as “means for [perform]ing [a function] . . . ” or “step for [perform]ing [a function] . . . ”, it is intended that such elements are to be interpreted under 35 U.S.C. 112(f). However, for any claims containing elements designated in any other manner, it is intended that such elements are not to be interpreted under 35 U.S.C. 112(f).