Spray bar assembly for machine system, and method

Patent metadata

Field	Value
Publication number	US-10000894-B1
Application number	US-201715707248-A
Country	US
Kind code	B1
Filing date	Sep 18, 2017
Priority date	Sep 18, 2017
Publication date	Jun 19, 2018
Grant date	Jun 19, 2018

Abstract

A spray bar assembly in a material working system of a ground-engaging machine, such as a rotary mixer, includes a spray bar coupled with an elongate carrier by way of a hinge connector. The elongate carrier is supported between guides mounted upon a housing of a rotor in the material working system, to guide the spray bar assembly for linear movement relative to a frame of the ground-engaging machine. The elongate carrier has openings that register with spray ports in a housing of the system, and the spray bar is tiltable to position spray nozzles within the openings and spray ports or withdraw the spray nozzles from the openings and spray ports.

First claim

What is claimed is:

1. A spray bar assembly for a ground-engaging machine comprising:
a spray bar having a fluid inlet formed therein, and a plurality of spray nozzles in fluid communication with the fluid inlet;
a hinge connector defining a hinge axis;
an elongate carrier coupled to the spray bar by way of the hinge connector and extending in longitudinal alignment with the spray bar;
the elongate carrier having a forward support element and a back support element for supporting the elongate carrier between guide elements mounted to the ground-engaging machine, such that the spray bar assembly is guided for linear movement relative to the ground-engaging machine; and
the elongate carrier further having at least one opening formed therein between the forward support element and the back support element, and the spray bar being rotatable about the hinge axis relative to the elongate carrier between a tilted position, and an operating position, and the plurality of spray nozzles each extending through the at least one opening at the operating position.

2. The spray bar assembly of claim 1 wherein the at least one opening includes a plurality of openings in register with the plurality of spray nozzles.

3. The spray bar assembly of claim 2 wherein the forward support element and the back support element include a forward rail and a back rail, respectively.

4. The spray bar assembly of claim 2 wherein the elongate carrier has a non-uniform profile formed by a raised forward section, a raised back section, and an indented middle section, and the plurality of openings are formed in the middle section.

5. The spray bar assembly of claim 4 further comprising a linkage coupling the spray bar to the elongate carrier, and a locking mechanism coupled with the linkage and adjustable between a locked state and an unlocked state to permit rotating the spray bar between the tilted position and the operating position.

6. The spray bar assembly of claim 5 wherein a first set of the plurality of spray nozzles is located upon a first longitudinal side of the linkage, and a second set of the plurality of spray nozzles is located upon a second longitudinal side of the linkage.

7. The spray bar assembly of claim 2 wherein the spray bar defines an internal cavity in fluid communication with the fluid inlet, and each of the plurality of nozzles includes a nozzle body extending through the internal cavity and having an orifice in fluid communication with the internal cavity.

8. A machine system comprising:
a housing positionable about a material working mechanism of a ground-engaging machine, the housing having an inner surface, and an outer surface extending fore to aft between a leading edge and a trailing edge, and laterally between a left lateral edge and a right lateral edge;
a spray bar assembly mounted to the housing and including a spray bar having a fluid inlet structured to connect with a fluid reservoir, and an elongate carrier coupled to the spray bar, the elongate carrier supporting the spray bar and configured to allow the spray bar to move linearly relative to the housing;
the spray bar including a plurality of spray nozzles in fluid communication with the fluid inlet; and
the housing further having a plurality of spray ports formed therein extending between the outer surface and the inner surface, and the spray bar being movable between a disengaged position to allow linear movement of the spray bar relative to the housing, and an operating position at which the plurality of spray nozzles are aligned with the plurality of spray ports.

9. The machine system of claim 8 wherein the elongate carrier is linearly movable between a first lateral stop position at which at least some of the plurality of spray nozzles are positioned outboard of the left lateral edge of the housing, and a second lateral stop position at which at least some of the plurality of spray nozzles are positioned outboard of the right lateral edge of the housing.

10. The machine system of claim 8 wherein the elongate carrier includes a plurality of openings formed therein, and the plurality of openings, the plurality of spray ports, and the plurality of spray nozzles have matched distributions within the elongate carrier, the housing, and the spray bar, respectively.

11. The machine system of claim 8 further comprising a forward guide element and a back guide element mounted at fixed locations upon the housing, and wherein the spray bar further includes a forward support element and a back support element, coupled with the forward guide element and the back guide element, respectively.

12. The machine system of claim 11 wherein the forward support element includes a forward rail, and the back support element includes a back rail.

13. The machine system of claim 12 wherein the forward guide element includes a forward roller, and the back guide element includes a back roller.

14. The machine system of claim 8 wherein the spray bar includes an upper side, and a lower side facing the elongate carrier, and wherein the plurality of spray nozzles extend through the spray bar and each include a spray nozzle tip extending from the lower side.

15. The machine system of claim 14 wherein each of the plurality of spray nozzles defines a spray axis, and the machine system further includes a ground-engaging rotor within the housing and positioned such that the rotor is intersected by the spray axis of the plurality of spray nozzles at the operating position.

16. The machine system of claim 15 wherein the housing defines a rotor chamber, and the spray nozzle tips are positioned at least partially within the rotor chamber at the operating position.

17. A method of operating a spray bar assembly in a ground-engaging machine comprising:
rotating a spray bar between an operating position and a tilted position relative to an elongate carrier coupled to the spray bar by way of a hinge connector;
moving a plurality of spray nozzles of the spray bar between a first orientation at the operating position, where the plurality of spray nozzles are in fluid communication with a material working chamber in the ground-engaging machine, and a second orientation at the tilted position; and
sliding the spray bar and elongate carrier laterally with respect to the ground-engaging machine between an inboard position where the plurality of spray nozzles are positioned inboard of lateral edges of a housing forming the material working chamber, and a lateral stop position where at least some of the plurality of spray nozzles are positioned outboard of the housing.

18. The method of claim 17 wherein the sliding of the spray bar laterally with respect to the ground-engaging machine further includes guiding the sliding of the spray bar by way of contact between a rail on one of the elongate carrier and the housing and a roller on the other of the elongate carrier and the housing.

19. The method of claim 18 further comprising passing the plurality of spray nozzles through a plurality of spray ports formed in the housing and a plurality of openings formed in the elongate carrier and in register with the plurality of spray ports during the moving of the plurality of spray nozzles.

20. The method of claim 17 wherein spray axes of the plurality of spray nozzles are oriented so as to intersect a rotor within the material working chamber at the first orientation.

Assignees

• Caterpillar Paving Products Inc

Inventors

• Schlenker Brian
• Stoner Matthew

Classifications

• E01C19/176 Primary

  Spraying or throwing elements, e.g. nozzles; Arrangement thereof or supporting structures therefor, e.g. spray-bars · CPC title

• E01C23/088

  Rotary tools, e.g. milling drums {(for forming recesses to receive marking materials E01C23/0946)} · CPC title

• E01C23/065 Primary

  Recycling in place or on the road, i.e. hot or cold reprocessing of paving in situ or on the traffic surface, with or without adding virgin material or lifting of salvaged material; Repairs or resurfacing involving at least partial reprocessing of the existing paving (in situ mixing of hydraulic cement concrete E01C19/025; apparatus for in-plant recycling E01C19/1004, E01C19/1036) · CPC title

• B05B13/0228

  the movement of the objects being rotative (B05B13/0242 takes precedence) · CPC title

• B05B15/60

  Arrangements for mounting, supporting or holding spraying apparatus · CPC title