NO339097B1

NO339097B1 - Rotary mechanism for a plow for a work machine, as well as a plow for a work machine

Info

Publication number: NO339097B1
Application number: NO20074432A
Authority: NO
Inventors: Jaakko Happonen; Unto Martikainen
Original assignee: Lametal Oy
Priority date: 2005-03-18
Filing date: 2007-08-31
Publication date: 2016-11-14
Also published as: WO2006097580A1; SE0702035L; SE533373E; NO20074432L; SE533373C2; FI124952B; FI20050289A0; FI20050289A

Description

Oppfinnelsen gjelder en vridningsmekanisme for en plog for en arbeidsmaskin, samt en plog, slik det framgår av den innledende del av henholdsvis patentkrav 1 og 8. The invention relates to a twisting mechanism for a plow for a work machine, as well as a plough, as can be seen from the introductory part of patent claims 1 and 8 respectively.

Bakgrunn Background

Anordningen er beregnet for å svinge en vinge beregnet for pløying av et fast materiale. The device is intended to swing a blade intended for plowing a solid material.

Ploger utstyrt med sidevinger er beskrevet i US-patentskrift 5,819,444 og 5,628,618 så vel som i svensk patentskrift 458861. Svensk patentskrift 513718 beskriver en plog utstyrt med to sidevinger og en anordning for å svinge disse. Plows equipped with side wings are described in US Patents 5,819,444 and 5,628,618 as well as in Swedish Patent 458861. Swedish Patent 513718 describes a plow equipped with two side wings and a device for swinging them.

Kjente anordninger for plogvinger, som brukes for å svinge en eller flere plogvinger, som er hengselbåret, mer enn 90 grader, er normalt utstyrt med et vidvinklet ledd, idet hastigheten og momentet for bevegelse av vingen varierer etter dens posisjon i forhold til den stasjonære stammen. Endringene i hastighet og moment har en skadelig virkning nå r slikt utstyr drives for avgrensete formål, hvor det kreves nøyaktighet. Dessuten er strukturen til vidvinklet ledd er kompleks, noe som skaper styrkeproblemer. Known plow vane devices, which are used to swing one or more hinged vanes more than 90 degrees, are normally equipped with a wide-angle joint, the speed and moment of movement of the vane varying according to its position in relation to the stationary stem . The changes in speed and torque have a detrimental effect when such equipment is operated for limited purposes, where accuracy is required. In addition, the structure of the wide-angle joint is complex, which creates strength problems.

Forandringen i momentet og hastigheten til det vidvinklete leddet skyldes anordningens geometri, hvor distansen mellom kamtappene blir betydelig endret under arbeidsbevegelsen. Når det vidvinklete leddet er åpnet helt, er styrken minimal og hastigheten maksimal. The change in the moment and speed of the wide-angled joint is due to the geometry of the device, where the distance between the cam pins is significantly changed during the working movement. When the wide-angle joint is fully opened, force is minimal and speed is maximal.

US-patentskrift 3,430,706 og japansk patentsøknad 8049224 beskriver ytterligere kjente anordninger for svinging av vinger. US Patent 3,430,706 and Japanese Patent Application 8049224 describe further known devices for swinging wings.

Formål Purpose

Formålet med oppfinnelsen er å fjerne ulempene ved kjent teknikk og å skaffe en leddmekanisme hvor hastigheten og momentet ikke blir vesentlig endret under arbeidsbevegelsen og hvor oppbygningen er enklere og solidere. The purpose of the invention is to remove the disadvantages of known technology and to provide a joint mechanism where the speed and torque are not significantly changed during the working movement and where the structure is simpler and more solid.

Oppfinnelsen The invention

Disse formålende oppnås med en vridningsmekanisme for en plog for en arbeidsmaskin, samt en plog, slik det framgår av den karaktiserende del av henholdsvis patentkrav 1 og 8. Ytterligere fordelaktige trekk framgår av de respektive uselvstendige patentkravene. These objectives are achieved with a twisting mechanism for a plow for a working machine, as well as a plough, as appears from the characterizing part of patent claims 1 and 8 respectively. Further advantageous features appear from the respective independent patent claims.

I henhold til oppfinnelsen benyttes to aktuatorer som er koblet i serie, for eksempel hydrauliske sylindre, hvorav den ene er leddforbundet med ramma eller den rammevendte delen, og den andre til vingen som skal vendes. Disse aktuatorene blir koblet til hverandre med en separat transmisjonsarm hvis ene ende er koblet på flytende måte til leddet mellom elementene. Forandringen i kraft og hastighet vil dermed bli betydelig lavere enn ved et vidvinklet ledd under arbeidsbevegelsen, på grunn av den lavere geometriske forandring i posisjonen til kamtappene. According to the invention, two actuators are used which are connected in series, for example hydraulic cylinders, one of which is articulated to the frame or the part facing the frame, and the other to the wing to be turned. These actuators are connected to each other by a separate transmission arm, one end of which is fluidly connected to the link between the elements. The change in force and speed will thus be significantly lower than with a wide-angled joint during the working movement, due to the lower geometric change in the position of the cam pins.

Nærmere bestemt omfatter anordningen for å vende vingene og plogen i samsvar med oppfinnelsen en transmisjonsarm som kan svinges rundt en vertikal akse, for å overføre krefter og for å koble en første aktuator og en andre aktuator til hverandre, hvor transmisjonsarmen er leddforbundet med den første aktuatoren og den andre aktuatoren, og hvor transmisjonsarmen er leddforbundet med et ledd mellom et rammeorgan og en sidevinge. More specifically, the device for turning the wings and the plow in accordance with the invention comprises a transmission arm which can be pivoted about a vertical axis, to transmit forces and to connect a first actuator and a second actuator to each other, where the transmission arm is articulated with the first actuator and the second actuator, and where the transmission arm is articulated with a link between a frame member and a side wing.

Eksempel Example

Oppfinnelsen vil nedenfor bli beskrevet nærmere under henvisning til tegningene, hvor The invention will be described in more detail below with reference to the drawings, where

Figur 1 viser et skjematisk riss ovenfra av en første utførelsesform av oppfinnelsen, Figure 1 shows a schematic view from above of a first embodiment of the invention,

Figur 2 viser et skjematisk riss ovenfra av en andre utførelsesform av oppfinnelsen, mens Figure 2 shows a schematic view from above of a second embodiment of the invention, while

Figur 3 viser et perspektivriss som illustrerer bruken av oppfinnelsen. Figure 3 shows a perspective view illustrating the use of the invention.

Figur 1 og 2 viser en struktur i samsvar med oppfinnelsen i et brukseksempel. Dette brukseksempelet gjelder en snøplog, hvor det skal svinges en sidevinge til en U-plog beregnet for snørydding. Ett brukseksempel er vist i Figur 3. Figures 1 and 2 show a structure in accordance with the invention in an example of use. This application example applies to a snow plough, where a side wing is to be swung to a U-plough designed for snow clearing. An example of use is shown in Figure 3.

Den faste ramma til U-plogen består av ei sentralramme 1 av stål med de indre festebraketter 2 for aktuatorer som er koblet i serie. Aktuatorene 3 (så som hydrauliske sylindre) er leddforbundet med disse brakettene for å bevege flytende transmisjonsarmer 4 som er sentrert på en vertikal akse 5, hvorfra aktuatorens kraft blir overført videre over den ytre aktuatoren 6 og braketten 7 til den ytre aktuatoren til de bevegelige sidevingene 8. Alternativt kan aktuatorene 3 være leddforbundet til et rammebåret svingelement 10, som den sentrale ramma 1 er leddforbundet med, som vist i Figur 2. The fixed frame of the U-plough consists of a central frame 1 made of steel with the inner fixing brackets 2 for actuators which are connected in series. The actuators 3 (such as hydraulic cylinders) are articulated with these brackets to move floating transmission arms 4 which are centered on a vertical axis 5, from which the power of the actuator is transmitted over the outer actuator 6 and the bracket 7 to the outer actuator of the movable side wings 8. Alternatively, the actuators 3 can be articulated to a frame-supported pivot element 10, to which the central frame 1 is articulated, as shown in Figure 2.

Når aktuatorene 3 og 6, i dette tilfellet hydrauliske sylindre, som er seriekoblet med transmisjonsarmen, er kortest, er sidevingen 8 svinget til ytterpunktet bort fra den sentrale ramma 1, vist med stiplet linje 9 i Figur 1 og 2. Når arbeidsbevegelsen for de seriekoblete aktuatorene 3 og 6 foregår, starter den flytende transmisjonsarmen 4 å dreie, styrt av den vertikale aksen 5, hvilket forårsaker at sidevingen 8 svinges i forhold til den vertikale aksen 5. Den svingete stillingen til sidevingen 8 er antydet med stiplet linje i Figur 1 og 2. When the actuators 3 and 6, in this case hydraulic cylinders, which are connected in series with the transmission arm, are at their shortest, the side vane 8 is swung to its extreme point away from the central frame 1, shown by dashed line 9 in Figures 1 and 2. When the working movement of the series-connected the actuators 3 and 6 take place, the floating transmission arm 4 starts to rotate, controlled by the vertical axis 5, which causes the side vane 8 to swing in relation to the vertical axis 5. The curved position of the side vane 8 is indicated by dotted line in Figure 1 and 2.

Oppstillinger forskjellig fra de løsningene som er beskrevet overfor er også gjennomførbare innafor ramma av patentkravene. Vridningsmekanismen kan følgelig være anordnet på et vingeforsynt snøskjær, en kantklipper som skal festes på sida av en lastebil, eller en sideving festet til en annen maskin, for å bli svinget omtrent 90 grader til begge sider i forhold til sin svingeakse. Arrangements different from the solutions described above are also feasible within the framework of the patent claims. The turning mechanism can therefore be arranged on a winged snow blade, an edger to be attached to the side of a truck, or a side wing attached to another machine, to be swung approximately 90 degrees to both sides in relation to its swing axis.

Claims

1. Turning mechanism for a plow for a working machine, comprising - a frame member (1) - a side wing (8) attached to the frame member (1) with a joint, so that it is pivotable in relation to the frame member (1) about a vertical axis ( 5), and - a first actuator (3) which is articulated with the frame member (1) or a pivot member (10) which is articulated with the frame member (1), where the working stroke of the first actuator (3) is arranged to swing the side wing ( 8) in relation to the vertical axis (5), and - a second actuator (6) which is articulated with the side wing (8) and connected in series with the first actuator (3), where the working stroke of the second actuator (6) also is arranged to swing the side wing (8) in relation to the vertical axis (5), characterized in that the twisting mechanism further comprises a transmission arm (4) which at one end is articulated with the joints connecting the frame member (1) and the side wing (8) and at the other end is articulated with the first and second actuators (3, 6).

2. Twisting mechanism in accordance with patent claim 1, characterized in that the force from the first actuator (3) and the second actuator (6) is transferred from the frame member (1) or the swing member to the side wing (8) with the transmission arm (4).

3. Twisting mechanism in accordance with patent claim 1 or 2, characterized in that the first actuator (3) and the second actuator (6) are hydraulic cylinders.

4. Twisting mechanism in accordance with one of the patent claims 1 to 3, characterized in that the side wing (8) can swing approximately 90 degrees to both sides of the vertical axis (5).

5. Twisting mechanism in accordance with one of patent claims 1 to 4, characterized in that the twisting mechanism comprises two side wings (8) which are connected to the frame member (1) with a link, two of the first actuators (3), two of the second actuators (6 ) and two of the transmission arms (4).

6. Twisting mechanism in accordance with one of patent claims 1 to 5, characterized in that the twisting mechanism is arranged in a U-plough.

7. Twisting mechanism in accordance with one of the patent claims 1 to 5, characterized in that the twisting mechanism is arranged on a snowplow, an edge mower to be connected to the side of a truck or a side wing (8) connected to another machine.

8. Plow for a working machine, which plow comprises - a frame member (1) - a side wing (8) attached to the frame member (1) with a joint, so that it is pivotable in relation to the frame member (1) about a vertical axis (5) ), and - a first actuator (3) which is articulated with the frame member (1) or a pivot member (10) which is articulated with the frame member (1), where the working stroke of the first actuator (3) is arranged to swing the side wing (8) ) in relation to the vertical axis (5), and - a second actuator (6) which is articulated with the side wing (8) and connected in series with the first actuator (3), where the working stroke of the second actuator (6) is also arranged to swing the side wing (8) relative to the vertical axis (5), characterized in that it further comprises a transmission arm (4) which is articulated at one end with the joints connecting the frame member (1) and the side wing (8) and at the other end is articulated with the two actuators (3, 6).

9. Plow in accordance with patent claim 8, characterized in that the side wing (8) is arranged to swing approximately 90 degrees in both directions in relation to the vertical axis (5).