DK9400470U3

DK9400470U3 - Dirt road maintenance machine

Info

Publication number: DK9400470U3
Application number: DK9400470U
Authority: DK
Inventors: Hansen Henry Schmidt
Original assignee: Hydromann A S
Priority date: 1994-12-22
Filing date: 1994-12-22
Publication date: 1995-02-10

Description

DK 94 00470 U3DK 94 00470 U3

BESKRIVELSEDESCRIPTION

BenævnelseDenominations

Maskine til vedligeholdelse af grusveje Frembringelsens anvendelsesområdeMachine for the maintenance of dirt roads The scope of production

Denne frembringelse angår en maskine til vedligeholdelse af grusveje og lignende grusbelagte arealer, hvor vedligeholdelsen i hovedsagen består i en udjævning af vejbanen og opfyldning af huller og hjulspor med mere. Maskinen er baseret på en lastvogn af den type, der er udrustet med udstyr til doseret udlægning / pålægning af grus, idet udjævningen og opfyldningen af hullerne i vejbanen sædvanligvis forudsætter tilførsel af fyldmateriale (grus, slagger, etc) i begrænset mængde.This provision relates to a machine for the maintenance of gravel roads and similar gravel-covered areas, the maintenance of which mainly consists in smoothing the roadway and filling holes and wheel tracks and more. The machine is based on a truck of the type equipped with equipment for dosing gravel laying / laying, the leveling and filling of the holes in the roadway usually requires the supply of filler material (gravel, slag, etc) in limited quantity.

Kendt teknikPrior art

Vedligeholdelsen af den ovennævnte type veje begrænser sig ofte til en afretning af vejbanen med et doserblad eller en planér-bom, der trækkes efter en lastvogn eller traktor. De højeste partier af vejbanen skrabes på den måde af, og materialet jævnes ud i lavningerne (huller og hjulspor). Holdbarheden af en sådan afretning er imidlertid meget begrænset, idet den ujævne vejstruktur fortsat findes under det udjævnede løse vejmateriale, og under vejens fortsatte brug gendannes hullerne og hjulsporene hurtigt igen. Medvirkende hertil er blandt andet, at regnvand samler sig i fordybningerne og på den måde opbløder fyldlaget, som derved hurtigt "slides" af. Tilførsel af nyt fyldmateriale -sædvanligvis i form af stabilgrus eller et lignende vejmateriale- samtidig med afretningen løser ikke problemet. Så længe den ujævne vejstruktur findes intakt under det udjævnede fyldlag vil gendannelsen af hullerne og spordannelserne hurtigt finde sted, naturligvis afhængig af trafikbelastningen på den pågældende vejstrækning og lokale forhold i øvrigt. Det øverste lag vil ofte være afblandet.Maintenance of the above-mentioned type of road is often limited to aligning the roadway with a dosing blade or planer boom towed by a truck or tractor. In this way, the highest parts of the roadway are scraped off and the material is leveled out in the holes (holes and wheel tracks). However, the durability of such alignment is very limited as the uneven road structure continues to exist beneath the smoothed loose road material and during continued road use the holes and wheel tracks are quickly restored. Contributing to this is, among other things, that rainwater accumulates in the recesses and in this way the fill layer is softened, which quickly wears off. Adding new filler material - usually in the form of stable gravel or similar road material - at the same time as the alignment does not solve the problem. As long as the uneven road structure remains intact under the leveled fill layer, the recovery of the holes and track formation will take place quickly, naturally depending on the traffic congestion on the relevant stretch of road and local conditions in general. The top layer will often be blended.

Det tekniske problem der skal løsesThe technical problem to be solved

For at undgå de ovenfor omtalte ulemper og mangler ved traditionel vejvedligeholdelse er det nødvendigt med en mere tilbundsgående og grundig behandling af vejbanen i forbindelse med afretningen, således at ikke blot vejbanens ovcrfladejævnhcd men også den underliggende vejstruktur forbedres. Endvidere skal det tilførte vejmateriale blandes grundigt sammen med det løsnede vejmateriale, så den færdigt afrcttedc "vejbelægning" opnår en homogen struktur og optimal bindeevne.In order to avoid the disadvantages and shortcomings of traditional road maintenance mentioned above, a more thorough and thorough treatment of the roadway in connection with the alignment is necessary, so that not only the surface level of the roadway but also the underlying road structure is improved. Furthermore, the applied road material must be thoroughly mixed with the loosened road material so that the finished "road pavement" achieves a homogeneous structure and optimal bonding capacity.

Den nye teknikThe new technique

Det nye ved frembringelsen består i, at lastbilen foruden doseringsudstyret er forsynet med en opriver (et harvelignende redskab) beregnet til opkradsning af vejbanen under kørslen, og at denne opriver er anbragt foran lastbilens doserings- og udjævningsudstyr regnet i lastvognens kørselsretning, således at opkradsningen af vejbanen finder sted inden tilførslen af nyt fyldmateriale og inden det løsnede / tilførte materiale igen fordeles og ud jævnes over vejbanen.The new feature of the production consists in that the truck, in addition to the dosing equipment, is provided with an upriver (a harrow-like tool) intended for recharging the roadway during travel, and that this builder is placed in front of the truck's dosing and leveling equipment calculated in the truck's direction of travel, so that the the roadway takes place before the addition of new filler material and before the loosened / infused material is again distributed and evened out over the roadway.

Den tekniske virkningThe technical impact

Ved at anvende den ovenfor nævnte nye teknik i forbindelse med den kendte teknik opnår man, at vejbanen rives grundigt og tilbundsgående op inden tilsætningen af nyt fyldmateriale og inden udjævningen af den materialeblanding, som udgøres af det løsnede (opkradsede) vejmateriale og det tilførte "friske" vejfyld. Det hele foregår naturligvis i én og samme arbejdsgang under lastvognens passage. Resultatet er en jævn og nærmest homogen vejbane, hvis strukturelle skavanker (huller og hjulspor) er minimeret eller helt fjernet, og hvor det udjævnede materiale udgør et homogent lag o DK 94 00470 U3 eller belægning, som takket være den forudgående opkradsning og blanding har en optimal binding til det faste underlag.By using the above-mentioned new technique in connection with the prior art, it is achieved that the roadway is thoroughly and thoroughly torn up before the addition of new filler material and before the leveling of the material mixture constituted by the loosened (scratched) road material and the "fresh" feed. "road-filled. Of course, all of this takes place in one and the same operation during the passage of the truck. The result is a smooth and almost homogeneous roadway, whose structural imperfections (holes and wheel tracks) are minimized or completely removed, and where the smoothed material forms a homogeneous layer or coating which, thanks to the previous scratching and mixing, has a optimal bonding to the solid substrate.

Ved at supplere opriveren med et sæt skråtstillede skrabeplader jvf krav 7 opnår man, at det opkradsede materiale samles i en streng midt på vejbanen. Denne streng sammenblandes med det friske fyldmateriale under udjævningsprocessen, nærmere bestemt foran planér-bommen, og fordeles ud til siderne af denne. Planér-bommen kan med fordel være sektionsopdelt, og være indrettet, så de enkelte sektioner kan højdeindstilles særskilt. Derved kan bommen tilpasses den ønskede vejprofil eller -hældning, således at man i én og samme arbejdsgang kan planere og profilere vejbanen.By supplementing the riser with a set of inclined scraping boards according to claim 7, it is achieved that the scratched material is assembled in a string in the middle of the roadway. This string is mixed with the fresh fill material during the smoothing process, more specifically in front of the planar boom, and distributed to the sides thereof. The planer boom can advantageously be sectioned and arranged so that the individual sections can be height-adjusted separately. In this way, the boom can be adjusted to the desired road profile or slope, so that in one and the same workflow one can plan and profile the roadway.

Udformningen af opriveren, og den måde, hvorpå opriveren er ophængt under lastvognschassiset, er nærmere angivet i underkravene. Formålstjenligt belastes opriveren ned mod vejbanen under kørslen, eksempelvis med ballast eller med en hydraulisk eller pneumatisk kraft, således at det fornødne tilholdetryk til sikring af tilstrækkelig indtrængningsdybde (opriverdybde) opnås også i fast sammenkørte vejbaner. Tilholdetrykket kan med fordel være regulerbart, eksempelvis ved anvendelse af en regulerbar trykventil i det hydrauliske system. Oprivertændernes vinkel i forhold til vejbanen kan ligeledes være indstillelig, teknikken hertil kendes eksempelvis fra landbrugsharver. Under transportkørsel er opriveren hævet fri af vejbanen.The design of the riser and the manner in which the riser is suspended under the truck chassis are specified in the subclaims. Conveniently, the rider is loaded down onto the roadway during travel, for example with ballast or with a hydraulic or pneumatic force, so that the necessary holding pressure to ensure sufficient penetration depth (upriver depth) is also obtained in fixed interconnected roadways. The holding pressure can advantageously be adjustable, for example by using an adjustable pressure valve in the hydraulic system. The angle of the tine teeth relative to the roadway can also be adjusted, the technique for this being known, for example, from agricultural harvesters. During transport, the rider is lifted free of the roadway.

Væsentligt er det ifølge opfindelsen, at det løsnede vejmateriale og det tilførte "friske" fyldmateriale blandes grundigt sammen inden den afsluttende udjævning. Sammenblandingen finder, som allerede anført, sted foran doserbladet, hvor materialet vælter rundt under kørslen. Sammenblandingen sikrer en homogen vejstruktur og en optimal binding i overfladelaget, idet det friske fyld sædvanligvis indeholder bindemidler i form af ler eller lignende stabilisatorer (jvf stabilgrus).Essentially, according to the invention, the loosened road material and the "fresh" filler material supplied are thoroughly mixed prior to the final leveling. As already stated, the mixing takes place in front of the dosing blade, where the material tumbles around while driving. The mixing ensures a homogeneous road structure and an optimal bonding in the surface layer, since the fresh filling usually contains binders in the form of clay or similar stabilizers (cf. stable gravel).

Frembringelsen og særligt fordelagtige udførelsesformer og detaljer ved denne forklares nærmere i enkeltheder i det følgende under henvisning til figurerne på tegningen.The invention and particularly advantageous embodiments and details thereof are explained in more detail below with reference to the figures in the drawing.

FigurfortegnelseList of Figures

Fig. 1 viser en lastvogn ifølge opfindelsen udrustet med opkradscopriver, skrabeplader, grusdoseringsudstyr og doser-blad, i sidebillcde, fig. 2 et forstørret udsnit af samme, og fig. 3 en principskitse, der viser lastvognen med tilhørende arbejdsorganer, set ovenfra. Udførelseseksempler I den på tegningen viste udførelsesform er maskinen opbygget omkring en lastvogn 1, som består af chassis 2, forhjul 3, baghjul 4, lad 5 og førerkabine 6. På ladet er anbragt en container 7 af selvtømmende type, dvs containerens bund udgøres af et transportbånd 8, der er i stand til successivt at udtømme containerens indhold i kontrolleret (doseret) mængde under kørslen. Containeren 7 benyttes til grus (eller lignende vejfyld, eksempelvis slagger), der udtømmes i en kasseformet afrette- og doseringsanordning 9 ophængt i liftarmc 10 bagerst på lastvognen.FIG. 1 is a side view of a truck according to the invention equipped with a crawler scraper, scraper plates, gravel dosing equipment and dosing blade; FIG. 2 is an enlarged section of the same, and FIG. 3 is a top plan view of the truck with associated work organs. EXAMPLES In the embodiment shown in the drawing, the machine is built around a truck 1 consisting of chassis 2, front wheel 3, rear wheel 4, cargo 5 and driver's cab 6. On the cargo is placed a self-emptying type container 7, ie the bottom of the container is a conveyor belt 8 capable of successively discharging the contents of the container in controlled (dosed) quantity while driving. The container 7 is used for gravel (or similar road fill, for example slag), which is discharged in a box-shaped erection and dosing device 9 suspended in lift arm 10 at the rear of the truck.

Doseringsanordningen 9 omfatter bl a et doserblad 11, der tjener til afretning af vejmaterialet under lastvognens kørsel. Doseringsanordningen er i øvrigt af den type, der kendes fra dansk brugsmodel nr. 94 00422. Der henvises til dette skrift.The metering device 9 comprises, inter alia, a metering blade 11 which serves to align the road material during the operation of the truck. The dosing device is otherwise of the type known from Danish utility model No. 94 00422. Reference is made to this specification.

3 DK 94 00470 U33 DK 94 00470 U3

Under lastvognens chassisramme 2, mellem for- og baghjulene 3,4, er ophængt en opriver 12.Under the chassis frame 2 of the truck, between the front and rear wheels 3,4, a raised 12 is mounted.

Denne består i hovedsagen af en rektangulær ramme 13, som bæres af bagudrettede ledarme 14 fra chassiset 2.1 rammen 13 er indsat to tværgående traverser 15, hvorpå et antal oprivertænder 16 er monteret. Oprivertændeme er i den viste udførelsesform af fjedertandstypen (S-typen, kendt fra landbrugsharver). Alternativt kan helt stive oprivertænder benyttes. Traverserne 15 er drejeligt indstillelige, således at oprivertændernes vinkel i forhold til vejbanen kan justeres. Mekanismen til denne vinkelindstilling og arretering i forskellige vinkler skal ikke forklares nærmere her, teknikken kendes fra landbrugsharver.This consists essentially of a rectangular frame 13 carried by rearward guide arms 14 from the chassis 2.1 the frame 13 is inserted two transverse traverses 15 on which a number of tear teeth 16 are mounted. The prong teeth are in the shown embodiment of the spring tooth type (S type, known from agricultural harvesters). Alternatively, completely rigid tear teeth can be used. The traverses 15 are pivotally adjustable so that the angle of the tear teeth relative to the roadway can be adjusted. The mechanism for this angle adjustment and arresting at different angles is not explained in more detail here, the technique is known from agricultural harvesters.

Opriveren 12 kan hæves og sænkes v hj af en hydraulisk cylinder 17, som også benyttes til påvirkning af opriveren med en kraft nedad mod vejbanen, når der arbejdes i hårdt sammenkørte grusveje. Meder 18 tjener til regulering (begrænsning) af oprivcrens arbejdsdybde.The riser 12 can be raised and lowered by a hydraulic cylinder 17, which is also used to act on the rider with a downward force against the roadway when working in hard-pressed gravel roads. Meder 18 serves to control (limit) the working depth of the tear.

Umiddelbart bag opriveren 12 regnet i lastvognens kørselsretning 19 er monteret et sæt skråtstillede skrabeplader 20 (sefig. 3). Disse tjener til sammenskrabning af det vejmateriale, som opriveren har løsnet, i en streng S midt under lastvognen. Denne streng af løsnet vejmateriale sammenblandes med det fra containeren 7 tilførte "friske" vejmateriale. Sammenblandingen finder sted foran doserbladet 11, hvor materialet "vælter" rundt under lastvognens kørsel.Immediately behind the riser 12, calculated in the direction of travel of the truck 19, is mounted a set of inclined scraper plates 20 (see Fig. 3). These serve to scrap the road material that the tear has loosened into a string S in the middle of the truck. This string of loosened road material is mixed with the "fresh" road material supplied from the container 7. The mixing takes place in front of the dosing blade 11, where the material "overturns" during the truck driving.

Doserbladet 11, som er forsynet med sidevingcr 11a og ll.b, foretager den endelige fordeling og udjævning af materialet. Til det formål er doserbladet opdelt i sektioner, som er individuelt indstillelige i højden, således at enhver ønsket vejprofil og -hældning kan frembringes af maskinen i én og samme arbejdsgang. Sidevingeme 11a og 11b gør det muligt for chaufføren -via sidespejlene på førerkabinen- at følge med i fordelings- og doseringsprocessen, således at en løbende justering af båndets 8 doseringshastighed kan finde sted under kørslen. Chaufføren kan på denne måde sikre, at der til stadighed er en passende mængde løst vejmateriale til rådighed for udjævningen foran doserbladet, således at den frembragte vejbane bliver optimal i henseende til huludfyldning og jævnhed. Derved sikres kvaliteten af det frembragte arbejde. Styringen af doseringshastigheden og opriverens arbejdsdybde foretages af chaufføren fra en manøvrepult 21 monteret i førerkabinen ved siden af chaufførsædet.The dosing blade 11, provided with lateral wings 11a and 11b, makes the final distribution and leveling of the material. For this purpose, the doser blade is divided into sections which are individually adjustable in height so that any desired road profile and slope can be produced by the machine in one and the same operation. The side wings 11a and 11b allow the driver - through the side mirrors of the driver's cab - to follow the distribution and dosing process, so that a continuous adjustment of the dosing speed of the belt 8 can take place during the run. In this way, the driver can ensure that an adequate amount of loose road material is always available for leveling in front of the dosing blade so that the resulting roadway is optimal in terms of hole filling and evenness. This ensures the quality of the work produced. The dosage rate control and the depth of work of the upriver are controlled by the driver from a maneuvering desk 21 mounted in the driver's cab next to the driver's seat.

Princippet med oprivning af vejbanen inden udjævningen betyder en form for genbrug af vejfyld. Derved spares på tilførslen af nyt fyldmateriale, hvilket indebærer en betragtelig økonomisk fordel, idet prisen på stabilgrus og lignende vejmaterialer er relativ høj. Endvidere minimeres transportkørselen med vejfyld.The principle of demolition of the roadway before leveling means a form of reuse of road fill. This saves on the supply of new filler material, which offers a considerable economic advantage, since the price of stable gravel and similar road materials is relatively high. Furthermore, the transport journey is minimized with road filling.

Opfindelsen er ikke begrænset til den på tegningen viste og ovenfor beskrevne udførelsesform.The invention is not limited to the embodiment shown and described in the drawing.

Andre detailudformninger og andre konstruktive løsninger for maskinens enkelte dele og hjælpefunktioner er tænkelige indenfor rammerne af denne opfindelse, ligesom anvendelsen af maskinen kan tænkes udvidet til andre områder end det anførte. Eksempelvis er en anvendelse som entreprenørmaskine i forbindelse med nyanlæg af veje og grusbelagte pladser også tænkelig. Den beskrevne placering af opriveren mellem lastvognens for- og baghjul er ikke i alle tilfælde optimal. Der kan tænkes løsninger, hvor opriveren er anbragt foran på lastvognen eller monteret i direkte tilslutning til doseringsaggregatet 9 bagerst på lastvognen.Other retail designs and other constructive solutions for the individual parts and auxiliary functions of the machine are conceivable within the scope of this invention, and the use of the machine may be extended to areas other than those specified. For example, an application as a construction machine in connection with the construction of roads and gravel paved areas is also conceivable. The described positioning of the riser between the front and rear wheels of the truck is not optimal in all cases. Solutions may be conceivable where the riser is located on the front of the truck or mounted in direct connection to the metering unit 9 at the rear of the truck.

Claims

1. Machine for the maintenance of gravel roads and similar gravel-covered areas, the maintenance of which consists mainly in leveling the roadway and filling holes and wheel tracks, which machine is based on a truck of the type equipped with dosing laying / leveling equipment of gravel, characterized in that the lorry (1), in addition to the dosing equipment (7,8,9), is provided with an upriver (12) or a similar harrow-like tool intended for upgrading the roadway during the passage and that this upriver (12) is arranged in front the dosing and leveling equipment of the truck (9) (calculated in the direction of travel of the truck 19), so that the roadway upgrading takes place immediately before the loading of new fill material (gravel, slag or the like) and before the loosened / applied material is mixed and leveled.

Machine according to claim 1, characterized in that the riser (12) consists of a plurality of rigid or resilient ripper teeth (16) mounted in a common frame (13) and that said frame is suspended vertically adjustable or movable below truck chassis (2) between front and rear wheels (3,4).

Machine according to claim 1, characterized in that the riser (12) is connected to the chassis frame (2) via articulated arms (14) or similar movable linkage mechanisms, and that the upriver can be raised and lowered by hydraulics or pneumatics, where it is used. at the same time, power medium is utilized to produce an adjustable holding pressure vertically downward on the tearer during its work.

Machine according to claim 3, characterized in that the holding pressure on the tear is produced by a ballast device on the tear.

A machine according to claim 2 or 3, characterized in that the riser is "floating" suspended, ie that the rider can freely follow the roadway while driving, or is "rigid" retained during operation, for example by impact against fixed or height adjustable impact on the chassis frame. and that the upriver is suitably provided with rods (18) which regulate the working depth of the ducks (16) in the road surface.

Machine according to claim 1, characterized in that the turret teeth (16) are mechanically actuated (moved) per se, for example laterally or vertically oscillating, in order to obtain an increased pitching effect and that the power is transferred to this movement mechanically. or hydraulically from the truck.

Machine according to claim 1, characterized in that immediately after the turret (calculated in the direction of travel of the truck 19), a set of inclined scraper plates (20) are directed inwards towards the center of the truck, for the purpose of scraping the loosened material in a string (S) in the middle of the truck.

Machine according to claim 1, characterized in that the dosing and leveling equipment of the truck (7,8,9,10,11) is of the kind known from the description of Danish utility model No. 94 00422, and wherein the leveling equipment more specifically comprises a doser blade (planar boom 11) which is wider than the truck itself and which is arranged with side wings (11a, 11b) to collect and distribute the material (the scratched road material and the applied filler material in mixture) in a well-defined path with well defined profile and inclination after the truck. DK 94 00470 U3

Machine according to Claim 8, characterized in that the dosing blade (11) is divided into sections which are individually adjustable in height and in inclination (side angle) to produce the desired road profile during the passage of the truck.

Machine according to claim 7, characterized in that, instead of the two inclined scraping plates (20), two driven drums are arranged which are inclined in relation to the direction of travel (19) and which have prominent spikes or teeth. arranged to transport the loosened road material towards the center during their rotation and that the force for the rotation of the drums is generated by hydraulic motors coupled to the hydraulic power take-off of the truck.