DK158059B

DK158059B - DISTRIBUTOR FOR FERTILIZER SPREADERS AND SIMILAR DEVICES.

Info

Publication number: DK158059B
Application number: DK368682A
Authority: DK
Inventors: Stig Goete Andersson; Yngve Berntmund Andersson; Sven Linderoth
Original assignee: Oeverums Bruk Ab
Priority date: 1981-09-25
Filing date: 1982-08-17
Publication date: 1990-03-26
Also published as: FR2514985A1; DK368682A; FR2514985B1; DE3230750C2; DE3230750A1; SE8105677L; SE445419C; GB2105962A; GB2105962B; DK158059C; SE445419B

Description

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iin

Den foreliggende opfindelse angår en spredebom af den i krav l's angivne art.The present invention relates to a spreading boom of the kind specified in claim 1.

Sådanne spredebomme har almindeligvis en på rammen anbragt 5 tragtformet forrådsbeholder, hvorfra spredningsmaterialet ved hjælp af pneumatik transporteres i rør ledningerne til de forskellige spredningsdyser. Disse dyser er almindeligvis placeret på to i forhold til maskinens fremføringsretning symmetrisk anbragte bomme, som under spredning rager horisontalt 10 ud, således at maskinens arbejdsbredde går op til 10-15 m eller mere. Ved transport kan disse bomme slås sammen således, at de i stedet for står lodret op eller skråt fremad, hvilket medfører en transportbredde, der er ubetydeligt større end sprederens sporvidde.Such spreading booms generally have a hopper-shaped storage container arranged on the frame from which the spreading material is conveyed by means of pneumatics in the pipe lines to the various spreading nozzles. These nozzles are generally positioned on two beams arranged symmetrically in relation to the direction of the feed, which extend horizontally 10 during spreading, so that the working width of the machine goes up to 10-15 m or more. During transport, these booms can be folded together so that they stand upright or inclined forwards instead, resulting in a transport width which is insignificantly greater than the spreader's track width.

1515

Fra tysk offentliggørelsesskrift nr. 2320636 kendes en spredebom af den i krav l's indledning angivne art. Denne spredebom er ca. midt på delt i to sektioner, hvilket, idet en sådan gødningsspreders arbejdsbredde andrager ca. 15 m eller mere, i 20 maskinens sammenfoldede transportst i 11 ing fører til en betragtelig højde, der gør en transport på f.eks. veje med træer, der strækker sig hen over kørebanen, vanskelig og farlig.From German Publication Publication No. 2320636 a spreading boom of the kind specified in the preamble of claim 1 is known. This spread boom is approx. in the middle divided into two sections, which, the working width of such a fertilizer spreader is approx. 15 m or more, in the 20 machine folded transport steps in 11 ing leads to a considerable height making a transport of e.g. Roads with trees stretching across the roadway, difficult and dangerous.

Fra FR patentskrift nr. 2382171 kendes en lignende ligeledes i 25 to sektioner delt spredebom, ved hvilken et over en sektor forløbende træk i tilbagetrukken stilling lader den ydre sektion hænge frit ned.FR patent specification No. 2382171 also discloses a similar spreading boom in 25 two sections, in which a feature extending over a sector in the retracted position allows the outer section to hang freely.

Fra DD patentskrift nr. 75174 kendes endvidere en af to sek- 30 tioner bestående sprøjterørbærer, ved hvilken sektionerne kan svinges om en lodret akse, således at sprøjterørene kan anbringes langs med redskabets yderside. Dette fører til en uønsket forstørrelse af redskabets transportbredde.Furthermore, from DD patent specification 75174, one of two sections consists of spray tube carrier, in which the sections can be pivoted about a vertical axis, so that the spray pipes can be placed along the outside of the implement. This leads to an undesirable increase in the transport width of the implement.

35 Det er den foreliggende opfindelses formål at forbedre en spredebom til en gødningsspreder af den i krav l's indledning angivne art således, at den i sammenfoldet tilstand har enIt is an object of the present invention to improve a spreading boom for a fertilizer spreader of the kind set forth in the preamble of claim 1 so that, in the folded state, it has a

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2 lavere højde, hvilken spredebora endvidere skal kunne betjenes med en enkel hydraulisk cylinder uden ekstra drivorganer.2 lower height, which can also be operated with a simple hydraulic cylinder without additional drive means.

Dette formål tilgodeses ved, at den indledningsvis omtalte 5 spredebom er ejendommelig ved det i den kendetegnende del af krav 1 anførte.This object is met by the fact that the 5 spreading boom mentioned above is peculiar to that of the characterizing part of claim 1.

Spredebommen ifølge opfindelsen består af en indre sektion og et ydre spredebomsområde, der er sammensat af to sektioner, 10 nemlig en midtersektion og en ydersektion. Midtersektionen består af en holde- og foldeindretning, der er dannet af stæn ger, der hængselsagtigt forbinder det indre og ydre afsnit indbyrdes og er anbragt i et omtrent i svingningsretningen forløbende plan, og forløber omtrent parallelt og med afstand 15 fra hinanden.The spread boom according to the invention consists of an inner section and an outer spread boom area composed of two sections, namely a middle section and an outer section. The middle section consists of a holding and folding device formed by rods which hingedly interconnect the inner and outer sections and are arranged in a plane extending approximately in the direction of oscillation, extending approximately parallel and spaced apart.

Foldeorganet for det ydre spredebomsområde i udfoldet stilling sker ved hjælp af et særskilt foldeorgan, der angriber på den yderste ende af den midterste sektion og på spredebommens 20 ramme.The folding means for the outer spreading boom area in the unfolded position is made by a separate folding means which attacks on the outer end of the middle section and on the frame of the spreading boom 20.

Når spredebommen ifølge opfindelsen foldes ud, bevæger de tre sektioner sig samtidigt i svingningsretningen om deres hængsel ssteder. Ved udfoldn i ngen svinger f.eks. den indre og den 25 ydre sektion i samme retning i retning med uret, medens den midterste sektion på tilsvarende måde svinges imod urvisernes retning.When the spreading boom according to the invention is unfolded, the three sections move simultaneously in the direction of oscillation about their hinge locations. When unfolding in any direction, e.g. the inner and the outer sections in the same direction in a clockwise direction, while the middle section is pivoted in a similar manner against the clockwise direction.

Ved denne udformning ifølge opfindelsen opnås, at den sammen-30 foldede boms højde reduceres betragteligt, i hvilken forbin delse den af tre sektioner bestående spredebom automatisk kan betjenes ved hjælp af én eneste hydraulisk cylinder på en sådan måde, at denne indtager en tilbagetrukken og en udstrakt stilling.In this embodiment according to the invention, the height of the collapsed boom is considerably reduced, in which connection the three-section spread boom can be operated automatically by a single hydraulic cylinder in such a way that it takes a retractable and a retractable boom. outstretched position.

3535

Fra US-patentskrift nr. 3581993 kendes ganske vist allerede en af en hydraulisk cylinder betjent spredebom, der består af treIt is admittedly known from US Patent No. 3581993 that a spreading boom operated by a hydraulic cylinder consisting of three

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3 sektioner. Ved denne kendte spredebom skal imidlertid den indre sektion manuelt svinges bagud for at sætte maskinen i transportstilling. Herved får denne spredebom ganske vist i transportstilling en lille højde, men har dog den mangel, at 5 den efter sammenfoldning af de to ydre sektioner kræver en manuel betjening, der består i, at den sammenfoldede spredebom skal svinges bagud om en lodret akse. En sådan manuel betjening er imidlertid omstændelig og uønsket.3 sections. However, at this known spread boom, the inner section must be manually swiveled backwards to put the machine into transport position. This causes this spread boom to reach a small height in transport position, but has the disadvantage that after folding the two outer sections it requires a manual operation consisting of the folded spread boom having to be swung backwards about a vertical axis. However, such manual operation is cumbersome and undesirable.

10 En fordelagtig ydre udformning for opfindelsens genstand er ejendommelig ved det i det uselvstændige krav anførte.An advantageous outer design for the subject matter of the invention is characterized by the dependent claim.

Nedenfor beskrives en udførelsesform for en spredebom ifølge opfindelsen under henvisning til tegningen, hvori 15 fig. 1 er et sidebillede af spredebommen monteret på en vogn, f i g. 2 viser vognen set bagfra, 20 f i g. 3 viser i lodret projektion bommen i transportstilling uden tilhørende rør og mundstykker, fig. 4 viser i lodret projektion bommen i delvis udklappet stilling uden tilhørende rør og mundstykker, 25 fig. 5 viser bommen i helt udklappet stilling, og fig. 6 er en vandret projektion af en komplet spredebom ifølge fig. 5.An embodiment of a spreading boom according to the invention is described below with reference to the drawing, in which FIG. 1 is a side view of the spreading boom mounted on a trolley, f in g. 2 shows the trolley seen from behind, 20 f in g. 3 shows in vertical projection the boom in transport position without associated pipes and nozzles; FIG. 4 shows in vertical projection the boom in a partially folded position without associated pipes and nozzles; FIG. 5 shows the boom in fully folded position, and FIG. 6 is a horizontal projection of a complete spread boom according to FIG. 5th

3030

Den i fig. 1 og 2 viste vogn består af en ramme 10 båret af et par hjul 11 med en lagerbeholder 12 for kornform igt materiale i form af handelsgødning eller tilsvarende materiale, der skal spredes over en større flade. Vognen er udstyret med en blæser 35 13, der frembringer en luftstrøm i slanger 14, der fører til de forskellige spredesluser 15. Materialet fødes med et ikke vist indstilleligt afmålingsorgan fra lagerbeholderen ved denThe FIG. 1 and 2 consists of a frame 10 carried by a pair of wheels 11 with a grain container 12 for grain-shaped material in the form of commercial fertilizer or similar material to be spread over a larger surface. The carriage is equipped with a fan 35 13 which produces an air flow in hoses 14 leading to the various spreading loops 15. The material is fed with a non-adjustable measuring means from the storage container at the

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4 i slangerne frembragte luftstrøm. Via dyserne spredes mate rialet derefter over den pågældende flade. Den bageste del af rammen bærer to i forhold til vognens midterlinie symmetrisk placerede spredebomme 16. Hver spredebom består af en indre 5 sektion 17, en midtersektion 18 og en ydre sektion 19.4 in the hoses produced air flow. The material is then spread over the nozzle via the nozzles. The rear portion of the frame carries two symmetrically positioned spread bar 16 relative to the center line of the carriage. Each spread bar consists of an inner section 17, a center section 18 and an outer section 19.

Den indre sektion 17 er udformet som et parallellogram, se fig. 6, med fire stivere 20, der er forbundet ved hjælp af en indre bjælke 21 og en ydre bjælke 22. Den indre bjælke 21 er 10 fast forbundet med et antal ledarme 23, der kan svinges omkring en aksel 24 ved hjælp af en dobbeltvirkende cylinder 25, hvis cylinderdel er drejeligt fastgjort til rammen 10 ved et punkt 26, medens stemplet er drejeligt fastgjort ved et punkt 27 mellem to af ledarmene 23. Den ydre bjælke 22 har et antal 15 udragende ører 28, 29 henholdsvis 30, der alle udgør ledpunkter for som ledarme udformede elementer i midtersektionen 18.The inner section 17 is designed as a parallelogram, see fig. 6, with four struts 20 connected by an inner beam 21 and an outer beam 22. The inner beam 21 is firmly connected to a plurality of articulated arms 23 which can be pivoted about a shaft 24 by means of a double-acting cylinder. 25, the cylinder portion of which is pivotally attached to the frame 10 at a point 26, while the piston is pivotally secured at a point 27 between two of the articulated arms 23. The outer beam 22 has a plurality of 15 projecting ears 28, 29 and 30, respectively, all of which are articulated points. for elements designed as articulated arms in the middle section 18.

Midtersektionens 18 foldeindretning omfatter stængerne 33 og 41, idet stængerne 33 drejeligt fast forbinder en indre og en 20 ydre bjælke henholdsvis 31 og 32.The folding device of the middle section 18 comprises the rods 33 and 41, the rods 33 pivotally connecting an inner and an outer beam 31 and 32 respectively.

Stængerne 33 udgør i bommens udstrakte stilling en direkte vandret fortsættelse af den indre sektions 17 to stænger 20. Stangen 41, hvis længde kan ændres ved hjælp af en justerings-25 mekaniske 42, er svingbart fastgjort til en laske 28, medens den anden ende ved et punkt 43 er drejeligt forbundet med to forbindelsesstænger 44, 45. Forbindelsesstangen 44 er ved et punkt 46 svingbart forbundet med den ydre bjælke 32 af midtersektionen 18, medens forbindelsesstangen 45 er drejeligt for-30 bundet med et bæreorgan 47 for den ydre sektion 19. Folde eller bæreorganet 47 er igen drejeligt fastgjort i et par konsoller 48 af den ydre bjælke 32 i midtersektionen 18.The rods 33 constitute, in the extended position of the boom, a direct horizontal continuation of the two rods 20. of the inner section 17. The rod 41, the length of which can be changed by means of an adjustment 25 mechanical 42, is pivotally attached to a lug 28 while the other end at a point 43 is pivotally connected to two connecting rods 44, 45. The connecting rod 44 is pivotally connected at the point 46 to the outer beam 32 of the middle section 18, while the connecting rod 45 is pivotally connected to a support member 47 for the outer section 19. The fold or carrier 47 is again pivotally attached to a pair of brackets 48 of the outer beam 32 of the center section 18.

Trækstangen 36 er via en forbindelsesledarm 37 svingbart 35 fastgjort på den indre sektions 17 laske eller øre 30. Træk stangens indre del, der i spredebommens udstrakte stilling er anbragt ovenfor den indre sektion 17, er endvidere forbundet 5The drawbar 36 is pivotally attached via a connecting link 37 to the lug or ear 30 of the inner section 17. The inner portion of the drawbar, which in the extended position of the spreading boom is placed above the inner section 17, is further connected 5

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med rammen 10 ved stedet 40 ved hjælp af en kæde 38 og en bøsning 39, hvis længde kan varieres.with the frame 10 at site 40 by means of a chain 38 and a bushing 39, the length of which can be varied.

Bæreorganets ene ende udgør lejepunkt for en bjælke 49, der 5 kan drejes rundt om en i bommens udklappede stilling lodret rettet aksel 50. Fra bjælken strækker der sig en stiver 51 til siden udad, og denne har i sin ydre forreste del en konsol 52, i hvis ene ende der er fastgjort en line 53. Den anden ende af linen 53 er forbundet jned en L-formet vippearm 54, der er 10 ophængt i en flange 55 på bjælken 49. Mellem vippearmen 54 og en med flangen 55 forbunden del 56 er der indspændt en trykfjeder 57. Den ydre del af vippearmen er bukket, således at den normalt griber om en ansats 58 på bæreorganet 47.One end of the support member is the bearing point of a beam 49 which can be rotated about a shaft 50 vertically directed in the folded-out position. From the beam, a strut 51 extends laterally outwardly, and in its outer front portion a bracket 52, at one end there is attached a line 53. The other end of the line 53 is connected to an L-shaped rocker arm 54 which is suspended in a flange 55 on the beam 49. Between the rocker arm 54 and a part 56 connected to the flange 55 For example, a compression spring 57 is clamped in. The outer portion of the rocker arm is bent so that it normally engages an abutment 58 on the carrier 47.

15 Alle sektionerne 17, 18 og 19 bærer ved de bageste partier dyser 15, som ved hjælp af de fleksible rør eller slanger 14 er forbundet med forrådsbeholderen 12. For at muliggøre sektionernes drejning i forhold til hinanden er rørene 14 delt i området mellem de forskellige sektioners bjælker, og en 20 af sektionernes rørender har konisk form, således at rørene kommer i indgreb med hinanden under bommens udfældning.All sections 17, 18 and 19 carry at the rear portions nozzles 15 which, by means of the flexible pipes or hoses 14, are connected to the storage container 12. In order to enable the sections to rotate relative to each other, the pipes 14 are divided into the region between the different sectional beams, and one of the sectional pipe ends has a conical shape so that the tubes engage with each other during the boom fallout.

Spredebommen fungerer på følgende måde: 25 i transportstilling opbevares spredebommene på den måde, der er vist i fig. 1-3 med cylinderen 25's stempelstang trukket ind. I denne stilling er de tre sektioner 17, 18, 19 paral lelle og rettet opad. Når olie tilføres cylindrene 25 således, at stempel stængerne går ud af cylindre, svinger hver indre 30 sektion 17 udad omkring akselen 24. Denne sektion påvirker igen trykstangen 41 og stiveren 43 således, at disse svinger bæreorganet 47 og dermed den ydre sektion 19 udad-nedad, indtil sektionen indtager den i fig. 5 viste stilling. Kæden 38 holder ved hjælp af trækstangen 36 bommen i ret højde over 35 jorden under kørslen. Indklapning af bommen sker på modsvarende måde under påvirkning af cylinderen, således at stempelstangen trækkes ind i cylinderen, hvorved bevægelsen sker i modsat retning.The spreading boom operates as follows: In the transport position, the spreading boom is stored in the manner shown in FIG. 1-3 with the piston rod of the cylinder 25 retracted. In this position, the three sections 17, 18, 19 are parallel and facing upwards. When oil is supplied to the cylinders 25 so that the piston rods exit from cylinders, each inner 30 section 17 swings outwardly around the shaft 24. This section in turn affects the thrust rod 41 and the strut 43 such that these pivot the supporting member 47 and thus the outer section 19 outwardly. downwards until the section occupies the one shown in FIG. 5. The chain 38, by means of the drawbar 36, holds the boom at a reasonable height above the ground during travel. The boom is folded in a similar manner under the influence of the cylinder, so that the piston rod is pulled into the cylinder, thereby moving in the opposite direction.

Claims

1. Fertilizer spreader boom or similar apparatus with a frame (10) mounted on a carriage chassis to which the spreader boom (16) is attached and the spreader bar carries the spout nozzles (15) needed for the spreader and associated hose lines (14). and having pivotally interconnected sections, each of which can be folded into an inward and extended position, and all axes about which the three sections (17, 18, 19) are pivot are oriented along lines parallel to the direction of feeding of the fertilizer spreader. so that the pivoting of the sections, when the carriage is placed horizontally, is substantially vertical, and furthermore with a hydraulic cylinder (25) connected to the inner section (17) of the spreading boom, whose pivoting movement produces a corresponding pivoting of the outer spreader boom area, and where there is provided a support and folding mechanism forming the rods of a hinge weight arm mechanism which, upon impact of the spreader boom, is affected The inner section causes a predetermined movement of the outer spreading boom area and holds the outer area by engagement therewith and on the frame in its unfolded position, characterized in that the outer spreading boom area is formed by two sections, namely a middle section (18). ) and an outer section (19) / and that the support and folding mechanism consists of rods (33, 41) which form the hinge weight arm mechanism and which connect the outer and inner sections, which rods extend with mutual spacing and approximately in parallel. in a plane 5 extending in the direction of oscillation and consisting of a separate support member 36, 38.

Spreading boom according to claim 1, characterized in that the support means consists of a rod (36) and a chain (38), which in the region of its inner end can be pivoted via an arm (37) on the inner section. (17) and at its outer end is pivotally attached to the outer portion of the center section (18). 15 20 25 30 35