WO1988004133A1 - Suspension unit for agricultural rollers - Google Patents

Suspension unit for agricultural rollers Download PDF

Info

Publication number
WO1988004133A1
WO1988004133A1 PCT/SE1987/000549 SE8700549W WO8804133A1 WO 1988004133 A1 WO1988004133 A1 WO 1988004133A1 SE 8700549 W SE8700549 W SE 8700549W WO 8804133 A1 WO8804133 A1 WO 8804133A1
Authority
WO
WIPO (PCT)
Prior art keywords
unit
roller
mounting
inner mounting
outer housing
Prior art date
Application number
PCT/SE1987/000549
Other languages
French (fr)
Inventor
Crister Stark
Original Assignee
Crister Stark
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 Crister Stark filed Critical Crister Stark
Priority to DE8888900043T priority Critical patent/DE3770829D1/en
Priority to EP88900043A priority patent/EP0337999B1/en
Priority to DE1988900043 priority patent/DE337999T1/en
Priority to AT88900043T priority patent/ATE64261T1/en
Publication of WO1988004133A1 publication Critical patent/WO1988004133A1/en
Priority to DK427188A priority patent/DK160179C/en
Priority to NO883358A priority patent/NO161831C/en
Priority to FI892669A priority patent/FI892669A/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/38—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type
    • F16F1/387—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type comprising means for modifying the rigidity in particular directions
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B29/00—Rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/22—Resilient suspensions characterised by arrangement, location or kind of springs having rubber springs only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/10—Type of spring
    • B60G2202/14—Plastic spring, e.g. rubber
    • B60G2202/142—Plastic spring, e.g. rubber subjected to shear, e.g. Neidhart type
    • B60G2202/1424—Torsional
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/14—Mounting of suspension arms
    • B60G2204/143—Mounting of suspension arms on the vehicle body or chassis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/41—Elastic mounts, e.g. bushings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/41—Elastic mounts, e.g. bushings
    • B60G2204/4104—Bushings having modified rigidity in particular directions

Definitions

  • the present invention relates to a suspension unit for ag ⁇ ricultural rollers, intended to provide elastic connection of the roller frame to a roller set including a shaft and roller rings.
  • Such suspension units are already known. They have the ob ⁇ ject of permitting movement in the vertical plane for a roller set so that the roller set can adjust itself to ir ⁇ regularities in the ground during work with the roller when the latter has several sections.
  • Figure 1 il ⁇ lustrates the unit from one side and Figure 2 is a perspec ⁇ tive view seen from one side.
  • the numeral 1 denotes a roller, 2 the frame of the roller and 3 an attachment on an outer housing 4.
  • the numeral 5 denotes an inner mounting carrying the outer end of the shaft of the roller set.
  • the numeral 6 denotes two elastic rubber abutments connecting the housing 4 to the inner mounting 5 such that the inner mounting can move inside the outer housing 4 when the roller is in operation. Openings 7 and 8 are made respectively on the upper sides and under sides of the abutments 6. In this way the stiff- ness of the unit will be less vertically than horizontally.
  • the roller set can then adapt to ground irregularities without any great movement taking place in the travelling direction.
  • a ridge can be formed at the upper side of the inner mounting 5, this ridge coming into contact with the inner surface of the outer housing 4 after a given movement of the inner mount ⁇ ing 5.
  • This ridge can to advantage be made cuneiform to obtain progressive force.
  • the elastic material By placing the inner mounting 5 eccentrically and below the centre of the outer housing 4, the elastic material may be allowed to form a thicker layer between the inner mounting 5 and the ridge 9. There is thus obtained a larger elastic volume between the inner mounting and the ridge so that larger shock energy can be taken up in the movement of the inner mounting 5 towards the housing 4.
  • rollers having several sections where outer sections are folded upwards during transport to re ⁇ cute the transport width
  • the opening 7 may be given a V-shape with the apex directed downwards.
  • the ridge 9 can be dispensed with.
  • the abutments may have shape of two or more pairs having openings in between the pairs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • Tires In General (AREA)
  • Guiding Agricultural Machines (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Buffer Packaging (AREA)
  • Soil Working Implements (AREA)
  • Road Paving Structures (AREA)

Abstract

A suspension unit in agricultural rollers, for elastically connecting the frame of the roller to a roller set including a shaft and a plurality of roller rings. An outer axially extending housing (4) is connected to the frame (2) of the roller (1) with the aid of an attachment (3). An inner mounting (5) carries the end of the roller set shaft. On either side of the inner mounting (5) there are axially arranged horizontal abutments (6), of elastic material, e.g. rubber, connecting the housing (4) to the mounting (5). Through openings (7, 8) are formed at the upper side (7) and under side (8) of the inner mounting. There is thus obtained low stiffness vertically, and the inner mounting (5) is allowed large movement vertically, whereby the roller set is given great adaptability to ground irregularities. By having large stiffness in the horizontal direction, the roller set is only allowed small movement in the travelling direction of the roller.

Description

SUSPENSION UNIT FOR AGRICULTURAL ROLLERS
The present invention relates to a suspension unit for ag¬ ricultural rollers, intended to provide elastic connection of the roller frame to a roller set including a shaft and roller rings.
Such suspension units are already known. They have the ob¬ ject of permitting movement in the vertical plane for a roller set so that the roller set can adjust itself to ir¬ regularities in the ground during work with the roller when the latter has several sections.
Known suspension units comprise a plurality of parts, which often have a complicated shape or are expensive to manufacture. Such drawbacks are avoided by the invention, which provides an elastic unit in a very simple and cheap manner, and is achieved by the distinguishing features disclosed in the accompanying claims.
The invention will now be described in more detail and with reference to the accompanying drawing, where Figure 1 il¬ lustrates the unit from one side and Figure 2 is a perspec¬ tive view seen from one side.
In the Figures the numeral 1 denotes a roller, 2 the frame of the roller and 3 an attachment on an outer housing 4. The numeral 5 denotes an inner mounting carrying the outer end of the shaft of the roller set. The numeral 6 denotes two elastic rubber abutments connecting the housing 4 to the inner mounting 5 such that the inner mounting can move inside the outer housing 4 when the roller is in operation. Openings 7 and 8 are made respectively on the upper sides and under sides of the abutments 6. In this way the stiff- ness of the unit will be less vertically than horizontally. The roller set can then adapt to ground irregularities without any great movement taking place in the travelling direction.
It has been found that the best result is obtained if the abutments are given an axial extension attaining to 40 to 50 % of the diameter of the outer housing.
To mitigate shock forces occurring when rolling over stones or other hard irregularities in the ground, a ridge can be formed at the upper side of the inner mounting 5, this ridge coming into contact with the inner surface of the outer housing 4 after a given movement of the inner mount¬ ing 5. This ridge can to advantage be made cuneiform to obtain progressive force.
By placing the inner mounting 5 eccentrically and below the centre of the outer housing 4, the elastic material may be allowed to form a thicker layer between the inner mounting 5 and the ridge 9. There is thus obtained a larger elastic volume between the inner mounting and the ridge so that larger shock energy can be taken up in the movement of the inner mounting 5 towards the housing 4.
Where there are rollers having several sections, where outer sections are folded upwards during transport to re¬ duce the transport width, it is advantageous for the abut¬ ments 6 to be long in the axial direction of the roller set, since in the folded up position of the sections the entire weight of the roller set, which can attain to sever¬ al hundred kilograms, is then carried solely by the elastic portions 6 of the suspension unit.
One skilled in the art is capable of implementing a suspen- sion unit in accordance with the invention in several ways within the scope of the claims, depending on the function desired. For example, the opening 7 may be given a V-shape with the apex directed downwards. In such a case there is obtained more elastic material for absorbing shocks and in this connection the ridge 9 can be dispensed with. Other modifications are also possible , the abutments may have shape of two or more pairs having openings in between the pairs.

Claims

1. Suspension unit for agricultural rollers, for elastic connection of the roller frame its roller set includ- ing shaft and roller rings, characterized by: an outer, axially extending housing (4) connected by an attachment (3) to the frame (2) of the roller (1), an inner, axially extending mounting (5) carrying the shaft end of the roller set, pairwise horizontal abutments (6) of elastic material, e.g. rubber, and arranged axially one on either side of the inner mounting (5) , these abutments connecting said outer housing (4) with said inner mounting (5), through openings (7, 8) formed at the upper side (7) of the inner mounting (5) and the under side (8) of said mounting with the object of allowing said mounting large movement vertically, due to low stiffness in the vertical direction, thus allowing the roller set to have good ad¬ justment to ground irregularities, but by large stiffness in the horizontal direction only to allow the roller set small movement in the travelling direction of the roller.
2. Unit as claimed in claim 1, characterized in that the abutments (6) extend axially along the entire length of the outer housing (4) and inner mounting (5).
3. Unit as claimed in claim 1 or 2, characterized in that the inner surface of the outer housing (4) and the outer surface of the inner mounting (5) are both circular-cylin- drical.
4. Unit as claimed in any one of the preceding claims, characterized in that the centre of the inner mounting (5) is eccentrically displaced downwards relative to the centre of the outer housing (4), and that the upper defining sur- faces of the elastic abutments (6) are situated above the inner mounting (5).
5. Unit as claimed in claim 1, characterized in that above the inner mounting (5) there is formed an upstanding ridge
(9) directed towards the inner surface of the outer housing (4).
6. Unit as claimed in claim 5, characterized in that the ridge (9) has decreasing width towards the inner surface of the outer housing.
7. Unit as claimed in claim 6, characterized in that the ridge (9) is cuneiform.
10. Unit as claimed in claim 1, characterized in that the length of the unit is less than the diameter of the outer housing.
11. Unit as claimed in claim 10, characterized in that the length of the unit is between 40 % and 50 % of the di¬ ameter of the outer housing.
PCT/SE1987/000549 1986-12-02 1987-11-20 Suspension unit for agricultural rollers WO1988004133A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE8888900043T DE3770829D1 (en) 1986-12-02 1987-11-20 AGRICULTURAL ROLLS WITH HANGING UNIT.
EP88900043A EP0337999B1 (en) 1986-12-02 1987-11-20 Agricultural rollers with suspension unit
DE1988900043 DE337999T1 (en) 1986-12-02 1987-11-20 SUSPENSION UNIT FOR AGRICULTURAL ROLES.
AT88900043T ATE64261T1 (en) 1986-12-02 1987-11-20 AGRICULTURAL ROLLS WITH HANGING UNIT.
DK427188A DK160179C (en) 1986-12-02 1988-07-29 BAEREAGGREGATAT FOR A AGRICULTURAL DRUM
NO883358A NO161831C (en) 1986-12-02 1988-07-29 AGRICULTURAL DRUM EQUIPMENT.
FI892669A FI892669A (en) 1986-12-02 1989-06-01 FAESTENHET FOER LANTBRUKSFRAESAR.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8605151-3 1986-12-02
SE8605151A SE457225B (en) 1986-12-02 1986-12-02 AGRICULTURAL ROLLER WITH ELASTIC CONNECTION BETWEEN ROLLER SHAFT AND FRAME

Publications (1)

Publication Number Publication Date
WO1988004133A1 true WO1988004133A1 (en) 1988-06-16

Family

ID=20366476

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1987/000549 WO1988004133A1 (en) 1986-12-02 1987-11-20 Suspension unit for agricultural rollers

Country Status (10)

Country Link
US (1) US4905771A (en)
EP (1) EP0337999B1 (en)
AU (1) AU1040688A (en)
CA (1) CA1299008C (en)
DE (1) DE8717761U1 (en)
DK (1) DK160179C (en)
FI (1) FI892669A (en)
SE (1) SE457225B (en)
SU (1) SU1743327A3 (en)
WO (1) WO1988004133A1 (en)

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* Cited by examiner, † Cited by third party
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DE4224288A1 (en) * 1992-07-23 1994-01-27 Porsche Ag Double wishbone axle
DE29914838U1 (en) * 1999-08-25 2001-01-04 Bomag Gmbh Soil compaction device
GB0413462D0 (en) * 2004-06-16 2004-07-21 Simba Internat Ltd A soil treatment apparatus
US7730961B2 (en) * 2005-07-07 2010-06-08 Terramanus Technologies Llc Soil conditioning device
US7478684B2 (en) * 2005-07-07 2009-01-20 Terramanus Technologies Llc Soil conditioning device
NZ577309A (en) * 2006-11-01 2011-04-29 Tru Turf Pty Ltd Roller assembly
US8727033B2 (en) * 2009-08-07 2014-05-20 Cnh Industrial America Llc Apparatus for providing support of a cantilevered component mounted to a rigid frame
FR2964293B1 (en) * 2010-09-03 2012-09-07 Otico ROLL ASSEMBLY FOR AGRICULTURAL MACHINERY
FR2987715B1 (en) * 2012-03-09 2014-03-28 Otico SOIL MILLING MACHINE WITH ONE OR MORE ROLLS
US8720351B1 (en) * 2012-03-27 2014-05-13 Danny Wipf Gauge wheel with improved wear characteristics
EA026011B1 (en) * 2012-04-16 2017-02-28 Республиканское Унитарное Предприятие "Научно-Практический Центр Национальной Академии Наук Беларуси По Механизации Сельского Хозяйства" Supporting and packing wheel of a tillage unit
SE541106C2 (en) 2012-08-22 2019-04-09 Vaederstad Holding Ab Suspension unit for agricultural implements, agricultural implements and use and procedure for mounting bearing unit
US10285321B2 (en) 2016-08-09 2019-05-14 Cnh Industrial America Llc Pivoting bearing assembly
RU174448U1 (en) * 2017-05-26 2017-10-13 Общество с ограниченной ответственностью "Торговый Дом "Восток" The working body of the tillage roller

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH193844A (en) * 1937-02-13 1937-11-15 Isenschmid Fritz Farm roller.
US2796712A (en) * 1955-01-07 1957-06-25 Delmer E Miller Rolling tamper
SE410546B (en) * 1977-04-14 1979-10-22 Stark Crister DEVICE AT RINGVELT
DE2703038B2 (en) * 1977-01-26 1980-12-04 Metzeler Kautschuk Gmbh, 8000 Muenchen Prestressable bearing element
EP0066815A2 (en) * 1981-06-03 1982-12-15 Nissan Motor Co., Ltd. Power unit mount
DE2755117C2 (en) * 1977-12-10 1985-01-31 Metzeler Kautschuk GmbH, 8000 München Prestressable bearing element

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1190257A (en) * 1915-06-29 1916-07-04 John H Henderson Road-roller.
FI36994A (en) * 1965-03-29 1967-06-21 Roller
AT261281B (en) * 1966-06-06 1968-04-10 Josef Kellinger Agricultural implement
DE3514268A1 (en) * 1985-04-19 1986-10-23 Metzeler Kautschuk GmbH, 8000 München PRELVETABLE AND HYDRAULIC DAMPED BEARING ELEMENT

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH193844A (en) * 1937-02-13 1937-11-15 Isenschmid Fritz Farm roller.
US2796712A (en) * 1955-01-07 1957-06-25 Delmer E Miller Rolling tamper
DE2703038B2 (en) * 1977-01-26 1980-12-04 Metzeler Kautschuk Gmbh, 8000 Muenchen Prestressable bearing element
SE410546B (en) * 1977-04-14 1979-10-22 Stark Crister DEVICE AT RINGVELT
DE2755117C2 (en) * 1977-12-10 1985-01-31 Metzeler Kautschuk GmbH, 8000 München Prestressable bearing element
EP0066815A2 (en) * 1981-06-03 1982-12-15 Nissan Motor Co., Ltd. Power unit mount

Also Published As

Publication number Publication date
SE8605151L (en) 1988-06-03
EP0337999A1 (en) 1989-10-25
DK427188D0 (en) 1988-07-29
EP0337999B1 (en) 1991-06-12
FI892669A0 (en) 1989-06-01
SE457225B (en) 1988-12-12
DK160179B (en) 1991-02-11
SU1743327A3 (en) 1992-06-23
US4905771A (en) 1990-03-06
DE8717761U1 (en) 1990-01-25
CA1299008C (en) 1992-04-21
FI892669A (en) 1989-06-01
SE8605151D0 (en) 1986-12-02
AU1040688A (en) 1988-06-30
DK160179C (en) 1991-07-15
DK427188A (en) 1988-07-29

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