EP1513607A1 - Tariere dotee d'un bord incline vers l'avant - Google Patents

Tariere dotee d'un bord incline vers l'avant

Info

Publication number
EP1513607A1
EP1513607A1 EP03736625A EP03736625A EP1513607A1 EP 1513607 A1 EP1513607 A1 EP 1513607A1 EP 03736625 A EP03736625 A EP 03736625A EP 03736625 A EP03736625 A EP 03736625A EP 1513607 A1 EP1513607 A1 EP 1513607A1
Authority
EP
European Patent Office
Prior art keywords
auger
leading edge
core
outer portion
helical flighting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP03736625A
Other languages
German (de)
English (en)
Other versions
EP1513607A4 (fr
Inventor
William S. Knight
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kuhn Knight Inc
Original Assignee
Kuhn Knight Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kuhn Knight Inc filed Critical Kuhn Knight Inc
Publication of EP1513607A1 publication Critical patent/EP1513607A1/fr
Publication of EP1513607A4 publication Critical patent/EP1513607A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K5/00—Feeding devices for stock or game ; Feeding wagons; Feeding stacks
    • A01K5/001—Fodder distributors with mixer or shredder
    • A01K5/004—Fodder distributors with mixer or shredder with mixing or shredding element rotating on vertical axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/92—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with helices or screws
    • B01F27/922—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with helices or screws with two or more helices, e.g. with intermeshing helices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/50—Movable or transportable mixing devices or plants
    • B01F33/502—Vehicle-mounted mixing devices
    • B01F33/5023—Vehicle-mounted mixing devices the vehicle being a trailer which is hand moved or coupled to self-propelling vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/836—Mixing plants; Combinations of mixers combining mixing with other treatments
    • B01F33/8361—Mixing plants; Combinations of mixers combining mixing with other treatments with disintegrating
    • B01F33/83611—Mixing plants; Combinations of mixers combining mixing with other treatments with disintegrating by cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/06—Mixing of food ingredients
    • B01F2101/18—Mixing animal food ingredients
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/09—Stirrers characterised by the mounting of the stirrers with respect to the receptacle
    • B01F27/091—Stirrers characterised by the mounting of the stirrers with respect to the receptacle with elements co-operating with receptacle wall or bottom, e.g. for scraping the receptacle wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/50—Movable or transportable mixing devices or plants
    • B01F33/502—Vehicle-mounted mixing devices

Definitions

  • This invention relates generally to vertical augers, and in one embodiment this invention pertains to vertical augers used in agricultural mixers.
  • Agricultural mixers are used for mixing feed materials such as hay, silage and other nutrients including animal feed supplements and grains. These feed materials are then discharged and fed to various livestock such as cattle and dairy cows. Sometimes the mixing of such feed materials includes depositing a whole round or square bale of hay into the mixer. The mixer then cuts and processes the bale into the desired consistency before and during the mixing of the other feed nutrients.
  • the auger In known mixers, there are many different configurations including horizontal augers, reel-type arrangements, and vertical augers.
  • the auger designs are often very similar.
  • the auger generally consists of a center core on a vertical axis, with helical auger flighting wrapped around this core.
  • the auger flighting has an overall conical appearance, being wider at the base and narrower at the top.
  • the wide leading edge of the flighting at the bottom of the mixer is made to travel close to the flat floor of the mixer, scooping or peeling the material upwards onto the flighting.
  • a hardened bar e.g., a grader blade
  • the leading edge of a typical vertical auger flighting is generally oriented on a radial line from the center of the vertical axis, perpendicular to the direction of rotation.
  • the main reason for this straight leading edge design is because of the way the flighting is manufactured.
  • the flighting starts as a flat circular plate with a single cut from the center to the edge. When this flat plate is formed into a helical flight, the leading edge remains a straight line from the center axis. It is easy to add the grader bar to this straight leading edge to complete the auger assembly.
  • a disadvantage of the straight leading edge design is that it tends to push or plow materials rather than scooping the material on top of itself. The tendency is particularly evident in longer length hay or sticky materials, which can wrap around or build up on the leading edge. This resulting plowing action requires higher horsepower, and limits the mixing ability and processing speed of the mixer.
  • one of the objectives of the present invention is to provide a vertical mixer auger with a forward leading edge, which overcomes the problems associated with prior art devices and makes a considerable contribution to the art of mixing feed materials.
  • other advantages include, for example:
  • an auger for vertical mixers comprising a forward angled leading edge.
  • An agricultural mixer for mixing hay or silage with other nutrients comprising a frame, a mixing chamber having a floor and a sidewall, and at least one vertical auger comprising a forward angled leading edge being mounted within the mixing chamber.
  • This vertical auger further comprises a core, and a helical flighting secured to and disposed coaxially with the core.
  • the leading edge of the helical flighting has an inner and an outer portion, wherein the outer portion of this leading edge extends ahead of the inner portion of the leading edge with respect to the direction of rotation of the auger.
  • FIG. 1 is perspective view of a vertical feed mixer
  • Fig. 2 is a top view of the vertical mixer shown in Fig. 1 ;
  • FIG. 3 is a side view of the vertical mixer shown in Fig. 1;
  • Fig.4 is a cutaway perspective view of the vertical mixer auger shown in Fig. 1;
  • FIG. 5 is a cross-section of the leading edge shown in Fig. 4 taken along line A-A of Fig. 4;
  • FIG. 6 is a perspective view exemplifying another embodiment of the leading edge of the present invention.
  • Fig. 7 is a perspective view exemplifying yet another embodiment of the leading edge of the present invention.
  • a vertical feed mixer is generally designated by the reference number 10. As illustrated in Figs. 1-3, the mixer includes a floor 12, a sidewall 14, and an open upper end 16. The mixer is mounted upon a frame 18, including wheels 20. A tongue 22 extending from the frame 18 is adapted to be hitched to a tractor or other prime mover.
  • the sidewall 14 includes a discharge opening 24 with a discharge door 26 movable between open and closed positions by a hydraulic cylinder 28.
  • a discharge chute 30 extends outwardly adjacent to the discharge opening 24.
  • the floor 12 and the sidewall 14 define a mixing chamber 32.
  • An auger 34 is rotatably mounted within the mixing chamber 32, and includes a vertically disposed core 36.
  • the mixing chamber 32 may also include two or more augers 34.
  • the core 36 and the auger 34 rotate around an axis of rotation 37, as shown in Fig. 4.
  • a helical flighting 38 is secured to and disposed coaxially with the core 36.
  • a driveline 40 for rotating the auger 34 is operatively connected to the power takeoff of the tractor.
  • the sidewall 14 is oval or oblong at the top edge of the mixer 10, as shown in Fig. 2. Thus, the sides 14A of the sidewall 14 are closer to the auger 34 than are the ends 14B of the sidewall 14.
  • the helical flighting 38 has a leading edge 42 and a trailing edge 44.
  • the leading edge 42 is adjacent to the floor 12 during normal operation.
  • the helical flighting also has an inside edge 46 which is secured to the core 36, and an outside edge 48.
  • the outside edge 48 often has knives 49 attached, which facilitates the cutting of materials placed inside the mixing chamber 32.
  • the auger 34 rotates in a direction of rotation 50 around the axis of rotation 37.
  • the design of the mixing chamber 32, as well as other features of the present invention, can be, but is not limited to being, implemented similarly to the corresponding component of the Verti-Maxx vertical auger of Kuhn-Knight Inc.
  • the leading edge 42 of the helical flighting 38 has an inner portion 52 and an outer portion 54.
  • the inner portion 52 of the leading edge 42 is adjacent to the core 36, and is normally parallel with a radial line 56 extending from the axis of rotation 37.
  • the outer portion 54 of the leading edge 42 is adjacent to the inner portion 52, and and slants forward of the inner portion 52 in the direction of rotation 50.
  • the angle of the outer portion 54 to the inner portion 52 is approximately 140 degrees, however an angle range from 90 degrees to 175 degrees could be utilized. Specific sub-ranges contemplated for use with the present invention include 130-150 degrees, and more generally 120-160 degrees.
  • Beveled grader bars made of hardened or abrasion-resistant steel are sometimes welded or bolted to the leading edge 42 to increase the durability of the leading edge 42.
  • An inner grader bar 58 is attached to the inner portion 52 of the leading edge 42.
  • An outer grader bar 60 is attached to the outer portion 54 of the leading edge 42.
  • Fig. 5 shows a cross section of the attachment between the leading edge 42 of the flighting 38 and the outer grader bar 60 taken along line A-A of Fig. 4.
  • Fig. 6 shows an alternative embodiment of the forward angled leading edge.
  • the inner portion 52 of the leading edge 42 is not parallel to the radial line 56, but slants backward therefrom with respect to the direction of rotation 50, while the outer portion 54 of the leading edge 42 slants forward with respect to the inner portion 52 of the leading edge 42.
  • Fig. 7 shows yet another alternative embodiment of the forward angled leading edge.
  • the inner portion 52 of the leading edge 42 is also not parallel to the radial line 56, but slants forward therefrom, while the outer portion 54 of the leading edge 42 is further slanted forward to respect to the inner portion 52 of the leading edge 42.
  • the inner portion 52 and the outer portion 54 may also be separated by a number of intermediate portions (not shown). For example, a first intermediate portion angled forward of the inner portion 52, but not angled as far forward as the outer portion 54, may also be used. Alternatively, the inner portion 52 and the outer portion 54 may be repeated a number of times to form a saw-toothed configuration.
  • the inner portion 52 and the outer portion 54 also need not be linear. That is, the inner portion 52 may be curved and may even be curved all the way to the outer portion 54 (which itself may be curved).
  • the operator attaches a tractor or other power source to the driveline 40 using a telescoping PTO (not shown) to transmit rotational power to the mixer 10.
  • the hay or other long stemmed forages in the form of large round or square bales are added into the mixing chamber 32 while the auger 34 is rotating.
  • Some mixers 10 utilize a larger mixing chamber 32 with multiple augers 34.
  • the knives 49 on the auger(s) 34 cooperate with the sidewall 14 to cut the bulky hay into shorter lengths for feeding to the livestock. Additional feed materials, including grains, silage, and other feed supplements, are then added into the mixing chamber 32 and mixed with the hay.
  • the hay and other feed material tend to migrate downward toward the ends 14B of the sidewall 14 and upward adjacent the opposite sides 14A of the mixing chamber 32.
  • This upward and downward flow of the hay and other feed material, together with the rotation of the auger(s) provides a thorough mixing action.
  • the discharge door 26 is closed so that no feed material is discharged through the discharge opening 24.
  • the auger 34 rotates around the axis of rotation 37 in the direction of rotation 50; the leading edge 42 and grader bars 58 and 60 travel adjacent to the floor 12 directing material onto the flighting 38.
  • the feed materials travel upward along the top face of the flighting 38 until they cascade off the trailing edge 44 or outside edge 48. The materials then settle downward until the flighting 38 can again engage them.
  • the forward leading angle of the outer portion 58 of the leading edge 42 forms a pointed wedge shape, which can more easily move through the feed materials.
  • the close proximity of the leading edge 42 and inner and outer grader bars 58 and 60 to the floor 12 help to reduce the horsepower required to rotate the auger(s) 34 and minimize the material remaining on the floor 12 after mixing and discharge is complete.
  • the hydraulic cylinder 28 is actuated to open the door 26 so that feed materials can be discharged out of the discharge opening 24.
  • the centrifugal effect caused by the rotation of auger(s) 34 helps to push the feed materials out of the discharge opening 24 and onto the discharge chute 30 for delivery to the livestock feeding bunk or trough (not shown).
  • the speed of the rotating auger(s) 34 is normally around 24 - 30 revolutions per minute, but can be increased at the end of the load to increase the discharge of the feed materials.
  • the vertical mixer with a forward angled leading edge creates a wedge effect while in rotary motion, allowing it to more easily move through the feed materials.
  • This feature lowers the horsepower required for the mixing, especially during the startup of the augers.
  • the forward angled leading edge also tends to cut or slice material with the longer slanted edge rather than pushing or plowing them with a shorter straight edge, and thus requires less horsepower.
  • the forward angled leading edge also improves the sweeping action at the floor, while providing a stronger leading edge, which is more durable and efficient in use.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Birds (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

L'invention concerne une tarière (34) pour malaxeurs verticaux comprenant un bord d'attaque incliné vers l'avant (42). Ledit bord d'attaque (42) est constitué d'une partie interne (52), susceptible ou non d'être alignée par rapport à une ligne radiale (56) s'étendant de l'axe de rotation (37) de la tarière. Le bord d'attaque est également constitué d'une partie externe (54) adjacente à la partie interne (52), inclinée vers l'avant de la ligne radiale (56) et s'étendant à l'avant de la partie interne (62).
EP03736625A 2002-06-04 2003-06-04 Tariere dotee d'un bord incline vers l'avant Withdrawn EP1513607A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US38551002P 2002-06-04 2002-06-04
US385510P 2002-06-04
PCT/US2003/015401 WO2003103821A1 (fr) 2002-06-04 2003-06-04 Tariere dotee d'un bord incline vers l'avant

Publications (2)

Publication Number Publication Date
EP1513607A1 true EP1513607A1 (fr) 2005-03-16
EP1513607A4 EP1513607A4 (fr) 2006-07-26

Family

ID=29736097

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03736625A Withdrawn EP1513607A4 (fr) 2002-06-04 2003-06-04 Tariere dotee d'un bord incline vers l'avant

Country Status (4)

Country Link
EP (1) EP1513607A4 (fr)
AU (1) AU2003237868A1 (fr)
CA (1) CA2486269C (fr)
WO (1) WO2003103821A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2314211T3 (es) * 2002-06-04 2009-03-16 Kuhn North America, Inc. Mezcaldora vertical para un dispositivo mezclador de forraje.
FR3099337B1 (fr) * 2019-07-31 2024-04-05 Kuhn Audureau Sa Machine pour le mélange d’un ou de produit(s), plus particulièrement un ou des produits servant à l’alimentation des animaux, et la distribution du mélange du ou desdits produit(s)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0393583A1 (fr) * 1989-04-19 1990-10-24 Tiziano Faccia Remorque mélangeuse pour des produits fibreux
DE29911066U1 (de) * 1999-06-24 2000-12-14 Mayer, Georg, 84529 Tittmoning Mischschnecke für Vertikal-Futtermischwägen
CA2307962A1 (fr) * 2000-05-10 2001-11-10 Ernest Anton Loewen Rotor de melangeur d'aliments muni d'un soc a l'avant pour diriger les aliments
EP1175828A2 (fr) * 2000-07-25 2002-01-30 Trioliet Mullos B.V. Malaxeur de fourage à axe vertical
US20030223308A1 (en) * 2002-06-04 2003-12-04 Kuhn Knight Inc. Auger with forward angled leading edge
WO2003103820A1 (fr) * 2002-06-04 2003-12-18 Christopher Albright Melangeur a vis sans fin dissemblables

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5615839A (en) * 1994-07-13 1997-04-01 Alteen Distributors, Ltd. Mixer
US5456416A (en) * 1994-07-13 1995-10-10 Alteen Distributors, Ltd. Mixer
US5863122A (en) * 1995-11-14 1999-01-26 Tamminga; Jacob R. Vertical feed mixer with auger having corners
US5803375A (en) * 1996-01-26 1998-09-08 Alteen Distributors Ltd. Vertical mixer
US5647665A (en) * 1996-04-18 1997-07-15 Schuler Manufacturing & Equipment Co., Inc. Vertical feed mixer with flighting plows
US5601362A (en) * 1996-06-04 1997-02-11 Schuler Manufacturing & Equipment Co., Inc. Vertical feed mixer with feed deflectors
US5823449A (en) * 1997-07-21 1998-10-20 Kooima; John C. Agricultural feed mixer blade
CA2316092C (fr) * 1999-08-13 2003-04-22 Jay-Lor Fabricating Inc. Melangeur d'aliments vertical avec vis sans fin munie d'un montant central a dessus incline

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0393583A1 (fr) * 1989-04-19 1990-10-24 Tiziano Faccia Remorque mélangeuse pour des produits fibreux
DE29911066U1 (de) * 1999-06-24 2000-12-14 Mayer, Georg, 84529 Tittmoning Mischschnecke für Vertikal-Futtermischwägen
CA2307962A1 (fr) * 2000-05-10 2001-11-10 Ernest Anton Loewen Rotor de melangeur d'aliments muni d'un soc a l'avant pour diriger les aliments
EP1175828A2 (fr) * 2000-07-25 2002-01-30 Trioliet Mullos B.V. Malaxeur de fourage à axe vertical
US20030223308A1 (en) * 2002-06-04 2003-12-04 Kuhn Knight Inc. Auger with forward angled leading edge
WO2003103820A1 (fr) * 2002-06-04 2003-12-18 Christopher Albright Melangeur a vis sans fin dissemblables

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO03103821A1 *

Also Published As

Publication number Publication date
CA2486269C (fr) 2008-01-15
EP1513607A4 (fr) 2006-07-26
CA2486269A1 (fr) 2003-12-18
WO2003103821A1 (fr) 2003-12-18
AU2003237868A1 (en) 2003-12-22

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