US3481344A - Arrangement in beater cylinders for threshers - Google Patents

Arrangement in beater cylinders for threshers Download PDF

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Publication number
US3481344A
US3481344A US669349A US3481344DA US3481344A US 3481344 A US3481344 A US 3481344A US 669349 A US669349 A US 669349A US 3481344D A US3481344D A US 3481344DA US 3481344 A US3481344 A US 3481344A
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United States
Prior art keywords
sheet
beater
bars
cylinder
secured
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.)
Expired - Lifetime
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US669349A
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English (en)
Inventor
Sigmund Stokland
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.)
Claas Maschinenfabrik GmbH
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Claas Maschinenfabrik GmbH
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Publication date
Application filed by Claas Maschinenfabrik GmbH filed Critical Claas Maschinenfabrik GmbH
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
    • A01F12/00—Parts or details of threshing apparatus
    • A01F12/18—Threshing devices
    • A01F12/20—Threshing cylinders with ribs

Definitions

  • the present invention relates to threshers for grain and the like and more particularly to a beater cylinder used with such threshers.
  • Beater cylinders are previously known including a plurality of beater bars secured to and evenly distributed about a rotatable shaft and radially spaced therefrom so as to during rotation cooperate with a grate concave, and in which there in the space between adjacent beater bars in the axial direction is secured a strip shaped sheet of elastic yieldable material having in cross-section convex curved outer surface with a radius substantially corresponding to the maximum working radius of the beater bars.
  • the object of the above named strip shaped sheets secured in the spaces between adjacent beater bars is to prevent the grain separated in beating the material to be threshed against the concave from moving into the spaces between the beater bars as it impinges the outer curved surface of the elastic yieldable material which lead said grain through the grate concave and press the material against the surface of the' concave so that grain left in the material is removed therefrom by friction.
  • Threshing cylinders of the type above referred to give satisfactory results with respect to the threshing proper at the same time as the power consumption in rotating the cylinder is reasonable during usual conditions.
  • the object of the present invention is to provide a threshing cylinder of the type referred to by means of which the above drawbacks are removed.
  • each of the convex curved strip shaped Cir 3,481,344 Patented Dec. 2, 1969 sheet of elastic yieldable material having its centre of curvature in the axis of the cylinder, is connected to an inwardly spaced and parallel thereto extending rigid sheet shaped support member by means of flexible, not stretchable and radially directed connections, the circumferential spacing of which corresponds approximately to the radial space between said strip shaped sheet and the support member.
  • FIG. 1 is a cross-sectional end view of a beater cylinder of the instant invention and the operatively associated concave grate thereof, and
  • FIG. 2 is a fragmentary cross-section end view, in greater scale, of the elastic yieldable sheet connected to the support member.
  • FIG. 1 denotes the shaft of the threshing cylinder about which, by means of spiders or disc-shaped support members 2, a plurality of beater bars 3 are secured in evenly distributed and radially spaced relationship.
  • the heater bars 3 cooperate with a grate concave 7 consisting essentially of bars 8 parallel to the shaft 1 and defining interstices 8 said concave being positioned in relation to the maximum operating circle X of the beater bars so that between said circle and concave a gap 9 is formed having a radial height decreasing slightly from the inlet to the outlet of said gap, the material to be threshed being fed into the gap in the direction of the arrow A.
  • the spaces between adjacent beater bars 3 are closed by elastic yieldable strips or sheets 4 of rubber, plastic or the like having an outwardly curved surface with a radius from the axis of rotation of the cylinder approximately equal to the radius of the operating circle X of the beater bars 3.
  • the strip or sheet 4 extends over each length of the beater bars and the edge portions thereof are secured to the mounting means of the respective beater bar as described below.
  • each strip or sheet 4 of elastic yieldable material is connected to a support membet 5 arranged at a selected radial distance inside said sheet 4.
  • the curved portion of the strip on sheet 4 of elastic yieldable material spaced radially from the support member 5 is connected thereto by means of a plurality of radially directed and in the whole length of the sheet 4 extending spoke-like connections 6 of flexible but not stretchable material, such as rubberized cord or the like.
  • connections 6 preferably may consist of a rubberized textile web which is square waved and of which the top and bottom portions 6 are secured, such as by vulcanizing, to the inner surface of the sheet 4 and the adjacent surface of the support member 5, respectively, as shown.
  • elastic sheet 4 is allowed to yield locally inwardly but prevented from moving outwardly beyond the original distance from the support member 5.
  • the distance between the sheet 4 of elastic yieldable material and the rigid support member 5 is selected as small as possible, thus a distance corresponding approxi- 3 mately to about 10-20% of the radius of the cylinder has shown satisfactory results, and the circumferential spacing of the radial connections 6 may be chosen within the range of from 0.5 to 2 times the distance between the sheet 4 and support member 5.
  • each individual strip or sheet assembly including the elastic sheet 4, the sheetshaped support member 5 and the connections 6, constitutes an arch having an axial length corresponding to the length of the cylinder and a circumferential width adapted to the distance between adjacent beater bars 3 so that the edge portions thereof may be secured to the inner side of the respective beater bars, or between a clamping plate secured thereto, and a clamping member 11 secured to the plate 10 by means of screws 12.
  • the rigid support members 5 may be formed in one piece having the shape of a rigid cylindrical drum on the surface of which the sheets or strips 4 are secured in the above described manner.
  • a bar type, rotary separator cylinder comprising: a shaft having an axis, a plurality of beater bars evenly distributed about said shaft and radially spaced therefrom, adjacent pairs of said bars defining spaces therebetween, a plurality of elastic, yieldable sheet means, each sheet means providing an outwardly curved surface extending between the bars of a respective pair, and having a radius of curvature substantially corresponding to the working radius of said bars, a plurality of rigid sheet shaped support means, each support means providing an outwardly curved surface extending parallel to the inner surface of a respective sheet means, between the bars of a respective pair and spaced inwardly from said sheet means, means interconnecting said sheet means and said support means, said connecting means consisting of flexible not stretchable, radially directed members the circumferential spacing of which corresponds approximately to the space between said sheet means and said support means.
  • said connecting means extending longitudinally of the cylinder, consist of a square-waved web of flexible but unstretchable textile material, having the top and bottom portions of said waves secured to the inner surface of the sheet means and to the opposite outer surface of the support means, respectively.

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Threshing Machine Elements (AREA)
  • Buffer Packaging (AREA)
US669349A 1966-09-07 1967-09-01 Arrangement in beater cylinders for threshers Expired - Lifetime US3481344A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO164592A NO116391B (el) 1966-09-07 1966-09-07

Publications (1)

Publication Number Publication Date
US3481344A true US3481344A (en) 1969-12-02

Family

ID=19909696

Family Applications (1)

Application Number Title Priority Date Filing Date
US669349A Expired - Lifetime US3481344A (en) 1966-09-07 1967-09-01 Arrangement in beater cylinders for threshers

Country Status (11)

Country Link
US (1) US3481344A (el)
AT (1) AT271971B (el)
BE (1) BE703585A (el)
CH (1) CH470831A (el)
DE (1) DE1298767B (el)
DK (1) DK116627B (el)
ES (1) ES344811A1 (el)
FR (1) FR1558323A (el)
GB (1) GB1177777A (el)
NL (1) NL6711995A (el)
NO (1) NO116391B (el)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4164947A (en) * 1978-03-10 1979-08-21 Deere & Company Rotor for an axial flow rotary separator
US4178943A (en) * 1978-03-24 1979-12-18 Deere & Company Rotor for an axial flow rotary separator
US4505279A (en) * 1983-08-08 1985-03-19 Sperry Corporation Staggered spiral rasp bar segments for axial flow combines
EP0396968A1 (de) * 1989-05-06 1990-11-14 Claas Ohg Mähdrescher
US5569080A (en) * 1995-07-06 1996-10-29 Estes; Don Crop straw flow disruption device for use on crop harvesting machine separation grate
US6244955B1 (en) * 1998-01-29 2001-06-12 Deere & Company Rotary tine conveyor for a harvesting machine
US10123483B2 (en) * 2015-03-04 2018-11-13 Cnh Industrial America Llc Threshing drum
CN114766687A (zh) * 2022-04-28 2022-07-22 农业农村部南京农业机械化研究所 一种坚果脱壳滚筒

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2942448A1 (de) * 1979-10-20 1981-05-14 Claas Ohg, 4834 Harsewinkel Maehdrescher-dreschwerk fuer die erzeugung von corn-cob-mix aus maiskolben
CN113016264A (zh) * 2021-04-08 2021-06-25 农业农村部南京农业机械化研究所 一种可变径柔性打板的花生脱壳滚筒

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2361633A (en) * 1941-01-09 1944-10-31 Jones George Douglas Thresher bars for harvesting machines
US3127898A (en) * 1962-05-28 1964-04-07 Massey Ferguson Ltd Threshing cylinder construction
US3259134A (en) * 1964-03-09 1966-07-05 Stokland Sigmund Threshing cylinder
US3410271A (en) * 1965-12-06 1968-11-12 Deere & Co Removable filler elements for threshing cylinder

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2361633A (en) * 1941-01-09 1944-10-31 Jones George Douglas Thresher bars for harvesting machines
US3127898A (en) * 1962-05-28 1964-04-07 Massey Ferguson Ltd Threshing cylinder construction
US3259134A (en) * 1964-03-09 1966-07-05 Stokland Sigmund Threshing cylinder
US3410271A (en) * 1965-12-06 1968-11-12 Deere & Co Removable filler elements for threshing cylinder

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4164947A (en) * 1978-03-10 1979-08-21 Deere & Company Rotor for an axial flow rotary separator
US4178943A (en) * 1978-03-24 1979-12-18 Deere & Company Rotor for an axial flow rotary separator
US4505279A (en) * 1983-08-08 1985-03-19 Sperry Corporation Staggered spiral rasp bar segments for axial flow combines
EP0396968A1 (de) * 1989-05-06 1990-11-14 Claas Ohg Mähdrescher
US5024631A (en) * 1989-05-06 1991-06-18 Claas Ohg Combine harvester
US5569080A (en) * 1995-07-06 1996-10-29 Estes; Don Crop straw flow disruption device for use on crop harvesting machine separation grate
US6244955B1 (en) * 1998-01-29 2001-06-12 Deere & Company Rotary tine conveyor for a harvesting machine
US10123483B2 (en) * 2015-03-04 2018-11-13 Cnh Industrial America Llc Threshing drum
CN114766687A (zh) * 2022-04-28 2022-07-22 农业农村部南京农业机械化研究所 一种坚果脱壳滚筒
CN114766687B (zh) * 2022-04-28 2023-11-14 农业农村部南京农业机械化研究所 一种坚果脱壳滚筒

Also Published As

Publication number Publication date
ES344811A1 (es) 1969-01-01
DE1298767B (de) 1969-07-03
NO116391B (el) 1969-03-17
NL6711995A (el) 1968-03-08
CH470831A (de) 1969-04-15
GB1177777A (en) 1970-01-14
DK116627B (da) 1970-01-26
AT271971B (de) 1969-06-25
BE703585A (el) 1968-03-07
FR1558323A (el) 1969-02-28

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