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EP0880631B1 - Dispositif d'evacuation de materiaux pour vehicules - Google Patents

Dispositif d'evacuation de materiaux pour vehicules Download PDF

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Publication number
EP0880631B1
EP0880631B1 EP97903687A EP97903687A EP0880631B1 EP 0880631 B1 EP0880631 B1 EP 0880631B1 EP 97903687 A EP97903687 A EP 97903687A EP 97903687 A EP97903687 A EP 97903687A EP 0880631 B1 EP0880631 B1 EP 0880631B1
Authority
EP
European Patent Office
Prior art keywords
bin
screw feeder
end portion
outfeeding
tube
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
EP97903687A
Other languages
German (de)
English (en)
Other versions
EP0880631A1 (fr
Inventor
Jussi Sjöstrand
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jussi Sjostrand AB
Original Assignee
Jussi Sjostrand AB
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 Jussi Sjostrand AB filed Critical Jussi Sjostrand AB
Publication of EP0880631A1 publication Critical patent/EP0880631A1/fr
Application granted granted Critical
Publication of EP0880631B1 publication Critical patent/EP0880631B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/04—Devices for both conveying and distributing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D3/00—Axial-flow pumps
    • F04D3/02—Axial-flow pumps of screw type

Definitions

  • This invention relates to a material outfeeding device intended for vehicles and including an upwardly open bin or container that is defined by two longitudinal side walls interconnected via a bottom and a rear end portion that at an external back side has means for detachable attachment of the bin to a vehicle supported hoist.
  • Material outfeeding devices of the type mentioned above are often used for portioning out concrete in connection with different concreting works.
  • Previously known devices have been manufactured by single plates, i.e. a planar, wedge-shaped bottom plate, a perpendiculary from said plate erecting rear end plate and two longitudinal side plates that also extend perpendicular from the bottom plate.
  • the longitudinal side plates are converging towards each other in direction towards an outfeed opening at the front end of the bin.
  • the bin is imparted the character of a spout-like bucket from which concrete may be outfeeded through an opening having limited width.
  • Such devices are known from WO 93/01365 for instance.
  • the present invention aims at removing the above-mentioned shortcomings of previously known concrete buckets and provide an improved outfeeding device.
  • a basic aim of the invention is therefore to create an outfeeding device through which concrete and similar material is outportioned in proper amounts without the need of a vehicle operator that tilts or swings the bin of the device.
  • a further aim is to create a device that enables concrete outfeeding at essentially longer distance from the vehicle than what has been possible by previously known concrete buckets. Also the outfeeding is to take place in a smoth, restricted flow in stead of being effected in portions.
  • an outfeeding device in the shape of an upwardly open bin or container 1 is shown, said bin 1 being defined by two longitudinal side walls 3, 3' that are connected to each other by a bottom 2, said bin 1 also including rear and front end portions 4, 5.
  • the rear end portion 4 is in the shape of a box that includes two plates 6 spaced apart from each other (only one plate is visible in fig 1), said plates between themselves defining a cavity.
  • On the outer side of the rear, not visible plate a so called quick attachment means 7 is provided, said means allowing the bin to be connected with a working vehicle.
  • This quick attachment means is of conventional type and is thus not described in detail.
  • the front end portion 5 constitutes of a single sheet metal wall.
  • the bottom 2 constitutes of a bottom plate that is curved or arched in cross-section and the two longitudinal side walls 3, 3', manufactured from sheet metal, that extend outwardly and upwardly, at an inclined position, from the bottom plate 2.
  • the bin has essentially V-shaped cross-section. From fig 1 is further learnt that the rear end portion 4 at its upper edge is substantially wider than the upper portion of the front end wall 5. In such a way the upper edges of the longitudinal side walls converge in direction towards the front end wall. In other words the bin has a wedge-like tapering shape in direction towards its front end.
  • a rotatable screw feeder 8 In the area of the bottom of the bin a rotatable screw feeder 8 is provided, said screw feeder 8 in conventional way being composed of a central shaft 9 and a helicoidal blade 10 provided on the shaft 9. At its front end said screw feeder projects through an opening in the end wall 5 and extends into a compressing device 11 that protrudes from the outside of the end wall 5.
  • Said compressing device constitutes on one hand of a cylindrical tube element 12 and on the other hand of a tube portion 13 that tapers in direction outwardly, said tube portion 13 projecting from the free end of the tube element 12.
  • the portion 13 constitutes of a conically tapering tube piece that has been welded to the cylindrical tube 12.
  • the tube portion 13 emerges into an outfeed opening 14 that preferably is surrounded by a flange or collar 15 to which a hose 16 (see fig 2) may be attached.
  • the feeder extends on one hand along the entire length of the bottom 2 of the bin and on the other hand along at least a major part of the length of the cylindrical tube 12.
  • the first feeder portion 8' located in the bin, has a helicoidal blade manufactured out of sheet metal.
  • the helicoidal blade of the portion 8" is manufactured out of sheet metal but in this case the sheet metal, at least along the peripheral edge of the helicoidal blade, is covered with a flexible material, e.g. reinforced rubber, in order to have the feeder to seal against the inner side of the cylindrical tube 12.
  • a flexible material e.g. reinforced rubber
  • the cylindrical tube 12 is manufactured with an internal diameter that is only slightly larger than the external diameter of the helicoidal blade. In such a way it is guaranteed that also a comparatively thin rubber coating will effectively seal against the inner side of the cylindrical tube.
  • the shaft 9 of the screw feeder is connected with a force transmission 17, e.g. a chain transmission, that is incorporated in the cavity of the rear end portion 4 and connected with a shaft of a hydraulic motor 18 that in its turn is mounted on the outside of the end portion. More precisely the hydraulic motor 18 is mounted on the front side of the front plate 6 of the end portion 4 in the area outside the longitudinal wall 3 of the bin.
  • the motor 18 is via not shown hoses connectable with the ordinary hydraulic system of the working vehicle and is driven with oil from that system.
  • a supporting post 19 is provided at the lower side of the bottom 2 of the bin and when the bin is placed on a bed the supporting post 19 guarantees that the bottom is inclined somewhat in a direction forwardly and upwardly from the lower part of the rear end portion 4.
  • a reinforcing rod 20 may be provided between the upper edges of the longitudinal side walls 3, 3'. This rod guarantees that the bin achieves proper stiffness even if the walls are comparatively thin.
  • the bin In use the bin is filled with concrete, e.g. by dumping from a concrete-transporting car.
  • outfeeding is effected by rotation of the screw feeder 8.
  • the concrete at the bottom of the bin is hereby pushed out in the cylindrical tube 12 and further through the tapering tube portion 13 to the outfeed opening 14. Due to the cross-sectional V-shape of the bin all concrete, from its own gravity, endeavour to approach the screw feeder 8.
  • the tube portion 13 When passing the tube portion 13 the concrete is compressed and an internal pressure is built up in the concrete mass. This pressure allows the concrete to be transported through a hose as illustrated in fig 2.
  • the concrete may in this way be directed to outfeeding points located at a substantial distance from both the bin and the vehicle. During the outfeeding process there is no need for a vehicle operator to tilt or swing the bin and nor is it necessary to move the vehicle itself.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Nozzles (AREA)
  • Inorganic Insulating Materials (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Fertilizing (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Burglar Alarm Systems (AREA)
  • Chain Conveyers (AREA)
  • Ship Loading And Unloading (AREA)
  • Loading Or Unloading Of Vehicles (AREA)
  • Reverberation, Karaoke And Other Acoustics (AREA)
  • Centrifugal Separators (AREA)
  • Catching Or Destruction (AREA)
  • Sowing (AREA)
  • Air Transport Of Granular Materials (AREA)
  • Seal Device For Vehicle (AREA)
  • Replacement Of Web Rolls (AREA)
  • Push-Button Switches (AREA)

Claims (6)

  1. Dispositif d'évacuation de matériaux pour véhicules comprenant une trémie (1) ouverte vers le haut, qui est définie par deux parois latérales longitudinales (3, 3') interconnectées par un fond (2) et une portion d'extrémité arrière (4) qui, sur une face arrière externe, comporte des moyens (7) de fixation détachable de la trémie à un treuil (21) supporté par un véhicule, caractérisé en ce que la trémie, à son extrémité dirigée à l'écart de ladite portion d'extrémité (4), comporte une seconde portion d'extrémité frontale (5) et en ce qu'un extracteur à vis rotatif (8) est prévu sur le fond de la trémie, une portion d'extrémité frontale dudit extracteur à vis (8) faisant saillie à travers une ouverture dans la portion d'extrémité frontale (5) et s'étendant dans un dispositif de compression dépassant de la face externe de ladite portion d'extrémité frontale (5), ledit dispositif de compression étant composé d'un tube cylindrique (12) et d'une portion de tube effilée (13) prévue à une extrémité extérieure dudit tube cylindrique (12), le matériau, par exemple du béton, évacué par l'extracteur à vis (8) de l'intérieur de la trémie étant comprimé dans la portion de tube effilée (13) avant que ledit matériau atteigne une ouverture d'évacuation (14) à une extrémité extérieure de la portion de tube effilée (13).
  2. Dispositif d'évacuation de matériaux selon la revendication 1, caractérisé en ce que le tube cylindrique (12) du dispositif de compression présente un diamètre interne qui est légèrement plus grand que le diamètre externe de l'extracteur à vis (8) et en ce que la portion (8") de l'extracteur à vis (8) qui fait saillie dans ledit tube cylindrique (12) est entièrement ou partiellement recouverte d'un matériau flexible, par exemple du caoutchouc, afin d'amener l'extracteur (8) à se sceller hermétiquement contre la face interne du tube cylindrique.
  3. Dispositif d'évacuation de matériaux selon la revendication 1 ou 2, caractérisé en ce qu'une extrémité extérieure libre de la portion de tube effilée (13) comporte des moyens (15) pour relier ladite portion de tube (13) avec un flexible (16).
  4. Dispositif d'évacuation de matériaux selon l'une quelconque des revendications précédentes, caractérisé en ce que, pour former une trémie, ayant essentiellement une forme en V dans sa section transversale, les parois latérales longitudinales (3, 3') de la trémie (1) s'étendent, en une position inclinée, vers l'extérieur et vers le haut à partir d'une portion de fond (2) adjacente à l'extracteur à vis, ladite portion de fond (2) étant courbée ou cintrée dans sa section transversale, et en ce que tout le matériau contenu dans la trémie s'efforce automatiquement de se déplacer vers le bas et vers l'intérieur en direction de l'extracteur à vis.
  5. Dispositif d'évacuation de matériaux selon l'une quelconque des revendications précédentes, caractérisé en ce que la portion d'extrémité arrière (4) présente la forme d'une boíte incluant deux plaques (6) séparées l'une de l'autre, une cavité étant définie entre lesdites plaques (6) pour loger au moins partiellement un mécanisme pour entraíner l'extracteur à vis rotatif (8).
  6. Dispositif d'évacuation de matériaux selon la revendication 5, caractérisé en ce que le mécanisme d'entraínement inclut une transmission (17) incorporée dans l'intérieur de la boíte, par exemple une transmission à chaíne, ladite transmission (17) s'étendant entre l'extracteur à vis (8) et un arbre d'entraínement d'entrée d'un moteur hydraulique (18) monté à l'extérieur de la boíte, ledit moteur hydraulique (18) étant à son tour entraíné par un fluide hydraulique provenant du système hydraulique ordinaire d'un véhicule (22).
EP97903687A 1996-02-15 1997-01-20 Dispositif d'evacuation de materiaux pour vehicules Expired - Lifetime EP0880631B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9600550A SE506049C2 (sv) 1996-02-15 1996-02-15 Materialutmatningsanordning för fordon
SE9600550 1996-02-15
PCT/SE1997/000079 WO1997030249A1 (fr) 1996-02-15 1997-01-20 Dispositif d'evacuation de materiaux pour vehicules

Publications (2)

Publication Number Publication Date
EP0880631A1 EP0880631A1 (fr) 1998-12-02
EP0880631B1 true EP0880631B1 (fr) 2003-06-11

Family

ID=20401396

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97903687A Expired - Lifetime EP0880631B1 (fr) 1996-02-15 1997-01-20 Dispositif d'evacuation de materiaux pour vehicules

Country Status (12)

Country Link
EP (1) EP0880631B1 (fr)
AT (1) ATE242833T1 (fr)
AU (1) AU1816197A (fr)
CZ (1) CZ287281B6 (fr)
DE (1) DE69722772D1 (fr)
EE (1) EE03404B1 (fr)
HU (1) HU220814B1 (fr)
NO (1) NO310432B1 (fr)
PL (1) PL183908B1 (fr)
SE (1) SE506049C2 (fr)
SK (1) SK111498A3 (fr)
WO (1) WO1997030249A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI112521B (fi) * 1999-05-10 2003-12-15 U H Rakennus Oy Menetelmä ja laitteisto laastin jakelemiseksi
ITRM20110416A1 (it) * 2011-08-02 2013-02-03 C & F S R L Dispositivo di scarico su benna miscelatrice.
CN109930800B (zh) * 2019-04-30 2020-11-27 广东博智林机器人有限公司 铺浆设备
CN111005567B (zh) * 2019-08-30 2021-08-13 中国二十冶集团有限公司 手自一体二次结构混凝土垂直浇筑工具及其使用方法
CN110733847B (zh) * 2019-11-13 2024-12-17 红河哈尼族彝族自治州水利水电工程地质勘察咨询规划研究院 一种在水利工程斜面上自动铺砂的装置
CN111305571A (zh) * 2020-02-26 2020-06-19 广东博智林机器人有限公司 混凝土布料装置
CN116811016A (zh) * 2023-07-24 2023-09-29 山东绿建新材料有限公司 一种可避免下料口硬化的混凝土搅拌机下料机构

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1419253A (en) * 1972-10-28 1975-12-24 Snowden F Bucket implements for mounting on agricultural tractors or like vehicles
WO1993001365A1 (fr) * 1991-07-03 1993-01-21 Michael John Jonson Godet pour engin de terrassement

Also Published As

Publication number Publication date
HUP9900726A3 (en) 2000-02-28
EE9800238A (et) 1998-12-15
HU220814B1 (hu) 2002-05-28
EE03404B1 (et) 2001-04-16
PL183908B1 (pl) 2002-08-30
SK111498A3 (en) 1999-02-11
NO983647D0 (no) 1998-08-10
SE9600550D0 (sv) 1996-02-15
EP0880631A1 (fr) 1998-12-02
CZ287281B6 (en) 2000-10-11
PL328580A1 (en) 1999-02-01
ATE242833T1 (de) 2003-06-15
HUP9900726A2 (hu) 1999-06-28
SE506049C2 (sv) 1997-11-03
NO983647L (no) 1998-10-12
CZ249698A3 (cs) 1999-02-17
NO310432B1 (no) 2001-07-02
WO1997030249A1 (fr) 1997-08-21
DE69722772D1 (de) 2003-07-17
AU1816197A (en) 1997-09-02
SE9600550L (sv) 1997-08-16

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