The present disclosure relates to agricultural sprayers. Specifically, the present disclosure relates to drop-down applicators for agricultural sprayers.
In one aspect, an agricultural vehicle is moveable across a surface. The agricultural vehicle includes a chassis, a traction member coupled to the chassis with the traction member configured to engage the surface and move the chassis relative to the surface, a holding tank coupled to the chassis with the holding tank configured to support agricultural matter, a support boom coupled to the chassis, and a plurality of applicator assemblies. Each applicator assembly of the plurality of applicator assemblies includes a resilient body coupled to the support boom, a foot coupled to the body with the foot configured to be biased into engagement with the surface via the resiliency of the body, and a nozzle. The nozzle is in communication with the holding tank and configured to dispense the agricultural matter.
In another aspect, the body includes a central axis, and the central axis is linear while the foot is configured to be spaced from the surface.
In another aspect, the central axis includes a curvature while the foot is configured to engage the surface.
In another aspect, each applicator assembly of the plurality of applicator assemblies includes a mount that rigidly couples the body to the support boom.
In another aspect, the body is coupled to the mount at a coupling location, a first distance is measured from an apex of the foot to the coupling location while the foot is configured to be spaced from the surface, a second distance is measured from a contact point on the foot to the coupling location while the foot is configured to engage the surface, and the first distance is greater than the second distance.
In another aspect, each applicator assembly of the plurality of applicator assemblies includes a bracket supporting the nozzle, and the nozzle is adjustable to change a dispensing direction of the nozzle relative to the bracket.
In another aspect, the foot is selectively coupled to the body.
In another aspect, the foot includes a material that has a greater stiffness than a material of the body.
In another aspect, the nozzle is a first nozzle, the holding tank is a first holding tank, and the agricultural matter is a first agricultural matter, the agricultural vehicle further comprises a second holding tank coupled to the chassis and configured to support a second agricultural matter, each applicator assembly of the plurality of applicator assemblies includes a second nozzle coupled to the body and positioned between the first nozzle and the support boom, and the second nozzle is configured to dispense the second agricultural matter.
In another aspect, an agricultural vehicle is moveable across a surface. The agricultural vehicle includes a chassis, a traction member coupled to the chassis with the traction member configured to engage the surface and move the chassis relative to the surface, a holding tank coupled to the chassis with the holding tank configured to support agricultural matter, a support boom coupled to the chassis, and an applicator assembly. The applicator assembly includes a frame non-pivotably coupled to the support boom with the frame including a portion configured to contact the surface and a nozzle coupled to the frame with the nozzle in communication with the holding tank and configured to dispense the agricultural matter. The nozzle is configured to move relative to the support boom in response to the frame flexing relative to the support boom.
In another aspect, the frame includes a body having a central axis, the portion of the frame includes a foot coupled to the body, and the central axis is linear while the foot is configured to be spaced from the surface.
In another aspect, the central axis includes a curvature while the foot is configured to engage the surface.
In another aspect, the applicator assembly includes a mount that rigidly couples the body to the support boom.
In another aspect, the body is coupled to the mount at a coupling location, a first distance is measured from an apex of the foot to the coupling location while the foot is configured to be spaced from the surface, a second distance is measured from a contact point on the foot to the coupling location while the foot is configured to engage the surface, and the first distance is greater than the second distance.
In another aspect, the applicator assembly includes a bracket supporting the nozzle, and the nozzle is adjustable to change a dispensing direction of the nozzle relative to the bracket.
In another aspect, an applicator assembly is configured to be coupled to a support boom of an agricultural vehicle that is moveable across a surface. The applicator assembly includes a resilient body configured to be coupled to the support boom, a foot coupled to the body with the foot configured to engage the surface, and a nozzle. The nozzle is configured to dispense agricultural matter to the surface. The nozzle is configured to move relative to the support boom in response to the body flexing relative to the support boom.
In another aspect, the body includes a central axis, and the central axis is linear while the foot is configured to be spaced from the surface.
In another aspect, the central axis includes a curvature while the foot is configured to engage the surface.
In another aspect, the foot is selectively coupled to the body.
In another aspect, the foot includes a material that has a greater stiffness than a material of the body.
Any of the above referenced aspects of the disclosure can be combined with any one or more of the above referenced aspects of the disclosure.
Other aspects of the disclosure will become apparent by consideration of the detailed description and accompanying drawings.
Before any embodiments of the disclosure are explained in detail, it is to be understood that the disclosure is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings. The disclosure is capable of supporting other embodiments and being practiced or being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. Terms of degree, such as “substantially,” “about,” “approximately,” etc. are understood by those of ordinary skill to refer to reasonable ranges outside of the given value, for example, general tolerances associated with manufacturing, assembly, and use of the described embodiments.
The sprayer 10 includes a support boom 55 coupled to the chassis 15 behind the holding tanks 30 and the cab 25. A hydraulic assembly 60 (e.g., hydraulic cylinders) is coupled to the chassis 15 and the support boom 55 and is operable to raise and lower the support boom 55 relative to the chassis 15 and the ground 40. Spray nozzles 65 are positioned along a longitudinal axis 70 of the support boom 55 with each spray nozzle 65 fluidly coupled to at least one holding tank 30. The spray nozzles 65 are operable to dispense/spray the agricultural material within at least one holding tank 30 onto the ground 40 and the crops 45. In other embodiments, the support boom 55 can be positioned in front of the cab 25. In further embodiments, a pull-behind sprayer can include a frame and wheels/continuous tracks that support the support boom 55 above the agricultural field 40 and is selectively coupled to a vehicle (e.g., a tractor) to be pulled across the agricultural field 40. In some embodiments, the pull-behind sprayer can also include one or more holding tanks 30.
With continued reference to
With reference to
A mount or clamp 115 is directly coupled to the support boom 55 and the body 90 and is adjustable to clamp onto different sized support booms 55. The mount 115 is also selectively coupled to the support boom 55 enabling the applicator assembly 80 to be selectively coupled to the support boom 55. A top portion 120 of the body 90 that interfaces with the mount 115 is rigidly coupled to the mount 115 such that the top portion 120 cannot pivot relative to the support boom 55. As such, the frame 85 is non-pivotably coupled to the support boom 55. The interface between the body 90 and the mount 115 defines a coupling location 125. In further embodiments, the mount 115 can be fixed to the support boom 55 by, for example, a welding process in which the applicator assembly 80 is non-removably coupled to the support boom 55.
The foot 95 is designed as a teardrop shape member and includes an outer surface 130 having an end or apex 132, a front curved side 135, and a rear curved side 138 with the front side 135 being symmetrical with the rear side 138 about the apex 132. The outer surface 130 of the foot 95 is configured to contact the ground 40. In other embodiments, the foot 95 can include a different shape (e.g., a C-shape member, a zig-zag shaped member, a pig-tail shaped member, a diamond shaped member, etc.). In one embodiment, the foot 95 is selectively coupled to and replaceable from the body 90 as the foot 95 is a wear component that engages the ground 40. In addition, the symmetry of the foot 95 allows for easy installation to the body 90 as the foot 95 can be rotated 180 degrees about the central axis 100 (as shown in
An upper bracket 140 (
A lower bracket 170 is coupled to the body 90 adjacent the foot 95 and supports a first lower spray nozzle 175 having a first lower outlet 180 and a second lower spray nozzle 185 having a second lower outlet 190. In other embodiments, the lower bracket 170 can be coupled to the foot 95. The spray nozzles 175, 185 are adjustable relative to the lower bracket 170 to change dispensing directions 192a, 192b of the outlets 180, 190 (
In operation, the sprayer 10 moves into an agricultural field such that each applicator assembly 80 is positioned between adjacent crop rows 75 (
With reference to
As the sprayer 10 is traveling through the agricultural field, the sprayer 10 is operable to pump agricultural material (e.g., a liquid fertilizer) from at least one of the holding tanks 30 through the first and second lower nozzle lines 195, 200 to be dispensed/sprayed from the first and second lower outlets 180, 190. In one embodiment, the outlets 180, 190 are oriented toward the base of the crops 45 to increase the efficiency of applying the agricultural material closer to the root system of the crops 45. In other embodiments, a first flexible hose can be coupled to the first lower spray nozzle 175 with an end of the first flexible hose contacting the ground 40 adjacent the first row 75a, and a second flexible hose can be coupled to the second lower spray nozzle 185 with an end of the second flexible hose contacting the ground 40 adjacent the second row 75b. In this embodiment, the outlets of the first and second flexible hoses drag along the ground 40 and directly apply the agricultural material to the ground 40 adjacent the bases of the crops 45, rather than the agricultural material being sprayed onto the ground 40 and the crops 45 via the spray nozzles 175, 185.
In addition, the sprayer 10 is operable to pump another agricultural material (e.g., a liquid fungicide) from at least one of the holding tanks 30 through the upper nozzle lines 165 to be dispensed/sprayed from the first and second upper outlets 155. The illustrated first and second upper outlets 155 are oriented to dispense the agricultural material to a mid-portion and/or an upper portion of the crops 45 by, for example, pivoting the spray nozzles 150 relative to the upper bracket 140 and/or by sliding the upper bracket 140 along the body 90. The agricultural material can be dispensed from the upper spray nozzles 150 at the same time as the other agricultural material is being dispensed from the first and second lower spray nozzles 175, 185.
With reference to
Moreover, the resiliency of each body 90 is such that a third distance 225 measured vertically from the contact point 210 to the outlets 180, 190 is generally constant as each body 90 flexes between the two different positions as shown in
With reference to
The curved surface 130 of each foot 95 enables the sprayer 10 to move in the rearward direction 52 (if desired) without having the foot 95 catch on an object on the ground 40 causing the body 90 to flex in the forward direction 50. Rather, if the sprayer 10 moves in the rearward direction 52 while the foot 95 engages the ground 40, the foot 95 can again travel over objects/protrusions on the ground 40 and maintain the flex in the body 90 in the rearward direction 52.
Furthermore, due to the rigidity of the applicator assemblies 80 in the transverse direction to the longitudinal axis 70 of the support boom 55, each applicator assembly 80 is maintained between adjacent crop rows 75a, 75b (
Although the disclosure has been described in detail with reference to certain preferred embodiments, variations and modifications exist within the scope and spirit of one or more independent aspects of the disclosure as described. Various features and advantages of the disclosure are set forth in the following claims.
This application is a continuation of U.S. patent application Ser. No. 16/295,853, filed Mar. 7, 2019, the disclosure of which is hereby incorporated by reference in its entirety.
Number | Date | Country | |
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Parent | 16295853 | Mar 2019 | US |
Child | 17699416 | US |