NO145303B

NO145303B - DEVICE FOR TRANSPORT OF LOOSE MASS OR SIMILAR

Info

Publication number: NO145303B
Application number: NO770518A
Authority: NO
Inventors: Hans Hansson
Original assignee: Hans Hansson
Priority date: 1976-02-18
Filing date: 1977-02-16
Publication date: 1981-11-16
Also published as: NO145303C; SE7601821L; FI770545A; FI62996B; DE2706005A1; FR2341502A1; NO770518L; FI62996C; BE851482A; FR2341502B1; SE397510B

Description

Foreliggende oppfinnelse vedrører en anordning for transport av løs masse eller lignende langs en bane, f.eks. en renne, til en oppsamlingsplass, f.eks. en beholder ved hjelp av en langs banen i fremover- og tilbakegående retning bevegelig transportør forsynt med en skrape anordnet for å ligge an mot banens bunn for ved transportørens fremovergående bevegelse å skyve massen foran seg og ved transportørens tilbakegående bevegelse i samvirke med banen er anordnet for å tippes, slik at skrapens skrapekant løftes fra banens bunn. The present invention relates to a device for transporting loose mass or the like along a track, e.g. a gutter, to a collection point, e.g. a container by means of a conveyor moving along the track in the forward and backward direction, provided with a scraper arranged to lie against the bottom of the track in order to push the mass in front of it during the forward movement of the conveyor and during the backward movement of the conveyor in cooperation with the track is arranged for to be tipped, so that the scraper's scraping edge is lifted from the bottom of the track.

Slike transportanordninger anvendes spesielt i forbindelse med innlopsgitter for vannrenseverk, kraftverk og lignende hvor en kontinuerlig rensing av gitrene skjer og den oppfangede masse avleveres langs hele gitterets lengde til en renne av foran beskrevet type. Such transport devices are used in particular in connection with inlet grates for water treatment plants, power plants and the like where a continuous cleaning of the grates takes place and the collected mass is delivered along the entire length of the grate to a chute of the type described above.

Da slike transportanordninger må arbeide året rundt og med et mi-nimum av skjotsel, kreves det en meget driftssikker konstruksjon. Ved renseoperasjonen av rennen forekommer det at all masse ikke skrapes bort og at skrapen på tilbakeveien skyver denne til rennens motsatte ende, hvor det av plasstekniske årsaker ofte ikke er mulig å plassere en andre beholder. Innen forholdsvis kort tid kan således en betydelig haug dannes, som vokser i rennens transportretning og medforer at rennens effektive rensede lengde blir kortere og kortere. En annen ulempe ved transportanordninger av det foran nevnte slag er at når massen av skrapen skyves langs rennen og ned i f.eks. en beholder, anbragt ved rennens slutt, vil denne tårne seg opp i beholderen nærmest rennens ende og vanskeliggjbr eller hindrer fortsatt utmating. As such transport devices have to work all year round and with a minimum of maintenance, a very reliable construction is required. During the cleaning operation of the gutter, it happens that all the mass is not scraped away and that the scraper on the way back pushes it to the opposite end of the gutter, where it is often not possible to place a second container for technical reasons. Within a relatively short time, a significant pile can thus form, which grows in the channel's direction of transport and means that the effective cleaned length of the channel becomes shorter and shorter. Another disadvantage of transport devices of the type mentioned above is that when the mass of the scraper is pushed along the chute and down into e.g. a container placed at the end of the chute, this will tower up in the container closest to the end of the chute and make it difficult or prevent continued discharge.

Formålet med oppfinnelsen er å eliminere foran nevnte ulemper og således å tilveiebringe en transportanordning med hvis hjelp en jevnere fordeling av den transporterte masse fås i beholderen, The purpose of the invention is to eliminate the disadvantages mentioned above and thus to provide a transport device with the help of which a more even distribution of the transported mass is obtained in the container,

og efterlatt masse ved skrapens tilbakegang ikke medtas. Denne oppgave er blitt løst ved at transportørens skrape er anordnet for ved banens ene forreste endestilling frittbærende å rage utenfor banens endekant og at skrapen i denne stilling er anordnet for å senkes noe i forhold til banens bunn. and mass left behind when the scraper recedes is not included. This task has been solved by the conveyor's scraper being arranged so that, at the one front end position of the track, it protrudes freely beyond the end edge of the track and that the scraper in this position is arranged to be lowered somewhat in relation to the bottom of the track.

Ved at skrapen ved rennens forreste ende fores litt utenfor rennen og der tipper ned et stykke, tilveiebringes en fordeling og spredning av masse som eventuelt har tårnet seg opp i en haug i beholderen ved rennens ende. Ved transportørens tilbakegående bevegelse glir skrapen på sine meier og derved unngås at masse, som er blitt værende i rennen folger med skrapen ved den tilbakegående bevegelse. By feeding the scraper at the front end of the chute a little outside the chute and tipping down a bit there, a distribution and spread of mass is provided which may have piled up in a pile in the container at the end of the chute. During the backward movement of the conveyor, the scraper slides on its teats and thereby avoids mass, which has remained in the chute, following with the scraper during the backward movement.

Oppfinnelsen vil bli nærmere beskrevet i det efterfolgende under henvisning til et på tegningene vist utforelseseksempel. Fig. 1 viser et lengdesnitt gjennom en transportanordning ifolge oppfinnelsen, hvor transportørens indre endestilling er vist helt opptrukket og den ytre endestilling er vist strekprikket. Fig. 2 viser et med fig. 1 analogt riss med transportøren ved dens tilbakegående bevegelse. The invention will be described in more detail below with reference to an embodiment shown in the drawings. Fig. 1 shows a longitudinal section through a transport device according to the invention, where the inner end position of the conveyor is shown fully extended and the outer end position is shown dotted. Fig. 2 shows a with fig. 1 analogue drawing with the conveyor in its backward movement.

Fig. 3 er et planriss av transportøren. Fig. 3 is a plan view of the conveyor.

Fig. 4 viser i storre målestokk en del av transportoren, og Fig. 4 shows on a larger scale part of the conveyor, and

Fig. 5 er et forstorret snitt efter linjen V-V i fig. 1. Fig. 5 is an enlarged section along the line V-V in fig. 1.

Transportanordningen omfatter en transportor 1, som skal transpor-tere masse, som har samlet seg i en renne 2, til en beholder 3, som er anordnet ved rennens slutt. Transportoren 1 består av en vogn 4 forsynt med hjul 5, som loper på rennens 2 kanter. Til vognens 4 forreste ende er svingbart festet to fremoverrettede armer 6, på hvis frie ende er anordnet en skrape 7. Denne er begrenset svingbar om lagringstapper 8 på armene 6 samt forsynt med sirkelbueformede spor 9 for styretapper 16 som begrenser skrapens svingbarhet. Skrapen 7 er videre forsynt med meier 10, på hvilke den glir ved transportørens tilbakegående bevegelse. Under transportørens fremadgående bevegelse er armene 6 rettet noe skrått oppover mens de under den tilbakegående bevegelse er i det vesentlige horisontalt rettet. Under armene 6 er stotte-ruller 11 anordnet, hvilke under transportørens fremovergående bevegelse er loftet opp fra rennens 2 bunn, mens de under den tilbakegående bevegelse loper i rennen. Vognen 4 er forsynt med drivhjul 12, rundt hvilke en kjede 13 loper, som strekker seg langs hele rennens 2 lengde. Vognen holdes fiksert i sideret-ning ved at hjulene 5 er forsynt med periferielle spor og mot lofting ved at styreskinner 14 er anordnet ovenfor rennens 2 kanter og hvilke griper inn i hjulenes spor. Styreskinnene 14 er festet til rennen 2 via vinkeljern 15. The transport device comprises a conveyor 1, which is to transport mass, which has collected in a chute 2, to a container 3, which is arranged at the end of the chute. The conveyor 1 consists of a carriage 4 provided with wheels 5, which run on the 2 edges of the chute. Two forward-directed arms 6 are pivotably attached to the front end of the carriage 4, on the free end of which a scraper 7 is arranged. This is limited pivotable about storage pins 8 on the arms 6 and provided with circular arc-shaped grooves 9 for guide pins 16 which limit the scraper's pivotability. The scraper 7 is further provided with a scraper 10, on which it slides during the conveyor's backward movement. During the forward movement of the conveyor, the arms 6 are directed somewhat obliquely upwards, while during the backward movement they are essentially horizontally directed. Under the arms 6, support rollers 11 are arranged, which during the forward movement of the conveyor are lifted up from the bottom of the chute 2, while during the backward movement they run in the chute. The carriage 4 is provided with drive wheels 12, around which a chain 13 runs, which extends along the entire length of the chute 2. The carriage is kept fixed in the lateral direction by the wheels 5 being provided with peripheral tracks and against lofting by the fact that guide rails 14 are arranged above the edges of the chute 2 and which engage in the tracks of the wheels. The guide rails 14 are attached to the channel 2 via angle iron 15.

Ved transportørens fremovergående bevegelse skyver skrapen 7 den masse som har samlet seg i rennen 2 foran seg langs rennen og ned i beholderen 3. Transportørens fremovergående bevegelse fortsetter og skrapen fores ut utenfor rennens 2 ende hvor den tipper ned inntil stotterullene 11 hviler mot rennens bunn. Når skrapen 7 fores ut over beholderen 3 skyver den foran seg den masse som har tårnet seg opp i en haug under rennens ende. Massen vil derved spres og fordeles jevnere i beholderen. Når transportoren når den stilling som er vist strekprikket i fig. 1, stoppes den av en endestillingsbryter og begynner sin tilbakegående bevegelse. Når skrapen 7 når rennens 2 ende dreies den til den i fig. 2 viste stilling og glir derpå på sine meier 10 i rennen. Derved unngås at masse som finnes i rennen, enten slik masse som er blitt tilfort efter transportoperasjonen eller slik som av en eller annen grunn ikke har fulgt med skrapen til beholderen, folger med skrapen tilbake. Denne vil i stedet gli over massen. Når transportoren når sin bakre endestilling, re-verseres vognens motor og skrapen 7 dreies tilbake til den stilling som er vist i fig. 1 og en ny transportoperasjon begynner. During the forward movement of the conveyor, the scraper 7 pushes the mass that has collected in the chute 2 in front of it along the chute and down into the container 3. The forward movement of the conveyor continues and the scraper is fed outside the end of the chute 2 where it tips down until the support rollers 11 rest against the bottom of the chute. When the scraper 7 is fed out over the container 3, it pushes in front of it the mass that has piled up in a pile under the end of the chute. The mass will thereby be spread and distributed more evenly in the container. When the conveyor reaches the position shown by the dotted line in fig. 1, it is stopped by a limit switch and begins its backward movement. When the scraper 7 reaches the end of the chute 2, it is turned to the one in fig. 2 showed position and then slides on its milkers 10 in the chute. Thereby it is avoided that mass found in the chute, either mass that has been added after the transport operation or mass that for one reason or another has not followed the scraper to the container, follows back with the scraper. This will instead slide over the mass. When the conveyor reaches its rear end position, the carriage's engine is reversed and the scraper 7 is turned back to the position shown in fig. 1 and a new transport operation begins.

Oppfinnelsen er ikke begrenset til det foran beskrevne utforelseseksempel, men kan varieres innenfor rammen av kravene. The invention is not limited to the exemplary embodiment described above, but can be varied within the framework of the requirements.

Claims

1. Device for transporting loose mass or the like along a path, e.g. a gutter, to a collection point, e.g. a container by means of a conveyor moving along the track in forward and backward direction, provided with a scraper arranged to rest against the bottom of the track in order to push the mass in front of it during the forward movement of the conveyor and during the backward movement of the conveyor (1) in cooperation with the track is arranged to be tipped, so that the scraper's scraper edge is lifted from the bottom of the track, characterized in that the conveyor's (1) scraper (7) is arranged so that at the one front end position of the track (2) it protrudes freely beyond the end edge of the track and that the scraper in this position is arranged to be lowered somewhat in relation to the bottom of the track.

2. Device as set forth in claim 1, characterized in that the conveyor (1) comprises a carriage (4) and a pair of forward-directed arms (6) pivotably attached to it, on the free end of which the scraper (7) is arranged, which is limitedly pivotable about bearing pins (8) on the arms (6).

3. Device as indicated ± claim 2, characterized in that the carriage (4) is provided with wheels (5) with peripheral tracks arranged to run on the end edges of the track (2) side walls, and that the above-mentioned end edges are provided with guide rails (14 ) to engage in the grooves of the wheels (5).

4. Device as stated in claim 2, characterized in that each arm (6) is arranged to be supported by a roller (11) or the like which, during the conveyor's (1) backward movement, is intended to run on the bottom of the track (2).