DE1684288A1 - Shotcrete conveying machine for the construction industry with automatic adjustment devices depending on the pneumatic conveying pressure - Google Patents

Shotcrete conveying machine for the construction industry with automatic adjustment devices depending on the pneumatic conveying pressure

Info

Publication number
DE1684288A1
DE1684288A1 DE19681684288 DE1684288A DE1684288A1 DE 1684288 A1 DE1684288 A1 DE 1684288A1 DE 19681684288 DE19681684288 DE 19681684288 DE 1684288 A DE1684288 A DE 1684288A DE 1684288 A1 DE1684288 A1 DE 1684288A1
Authority
DE
Germany
Prior art keywords
pneumatic
shotcrete
conveying
construction industry
pressure
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.)
Granted
Application number
DE19681684288
Other languages
German (de)
Other versions
DE1684288C3 (en
DE1684288B2 (en
Inventor
Heribert Dewert
Heinz Hoelter
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB5940668A priority Critical patent/GB1246494A/en
Priority to FR1597191D priority patent/FR1597191A/fr
Publication of DE1684288A1 publication Critical patent/DE1684288A1/en
Publication of DE1684288B2 publication Critical patent/DE1684288B2/en
Application granted granted Critical
Publication of DE1684288C3 publication Critical patent/DE1684288C3/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F21/00—Implements for finishing work on buildings
    • E04F21/02—Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls
    • E04F21/06—Implements for applying plaster, insulating material, or the like
    • E04F21/08—Mechanical implements
    • E04F21/10—Mechanical implements centrifugally acting

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Specific Conveyance Elements (AREA)
  • Screw Conveyors (AREA)

Description

Beschreibung und Erläuterung zur Patent- und Hilfsgebrauchsmusteranmeldung "Spritzbeton-Fördermaschine für die Bauindustrie mit vom pneumatischen Förderdruck abhängigen, automatischen Nachstellvorrichtungen" Als Spritzbeton-Fördereinrichtungen werden in überwiegendem . Maße in neuerer Zeit Rotor-Maschinen verwandt. Der Verschleiß an den Dichtstellen zwischen Rotor und einerseits Einfüllvorrichtung und andererseits pneumatischen Fördervorrichtung (pneum. Förderrohr) ist sehr hoch. Aus diesem Grunde ist eine Nachregulierung der Spannschrauben des Rotors stetig notwendig. Die Vorspannung der Spannschrauben gegen die Rotor-Dichtscheiben ist abhängig vom pneumatischen Förderdruck, der für den TransIDort aufgebracht werden muß, und dieser ist wiederum abhängig von der zu überbrückenden Blaslänge@sowie@plötzlich auftretenden Verstopferneigungen. Diese stetig wechselnden Bedingungen lassen eine exakte manuelle Verspannung der Dichtflächen gegen den Rotor nicht zu. Vielfach ist es so, daß der Arbeiter die Spannschrauben 1. unregelmäßig und 2. zu fest für den entsprechenden pneumatischen Förderdruck anzieht. Hieraus resultiert ein erhöhter Verschleiß. Um diese Nachteile weitgehendst auszuschalten, wird erfindungsgemäß vorgeschlagen, eine Spritzbeton-Fördermaschine entsprechend beiliegender Zeichnung mit automatischer Spannvorrichtung zu versehen. In der beiliegenden Zeichnung ist dargestellt mit 1 das pneumatische Förderrohr, -mit 2 ein Regulator für Druckluft oder Öldruck, mit 3 die Nachstellvorrichtung, z.h. Druckluft-. oder Öldruckzylinder und dergleichen. Arbeitsweise der erfindungsgemäßen Ausführung: Entsprechend dem pneumatischen Förderdruck in dem Förderrohr 1 wird dem Regulator 2 für Druckluft oder Öldruck ein entsprechend hoher Impuls gegeben. Der Regulator 2 reguliert dann in Ab= hängigkeit vom pneumatischen Förderdruck über Druckluft- oder Öldruckzylinder 3 die entsprechende Vorspannung auf die Dichtscheiben des Rotors. Hierdurch ist die Gewähr gegeben, daß eine gleichmäßige Vorspannung auf die Rotor-Scheiben gewährleistet ist und 2.) die Vorspannung in Abhängigkeit von der Förderlänge und dem daraus resultierenden pneumatischen Förderdruck gegeben ist. Selbstverständlich ist die Erfindung nicht auf die vorstehend im einzelnen dargestellten und beschriebenen Ausführungsformen beschränkt, sondern es sind zahlreiche Abänderungen möglich, ohne jedoch von dem Grundgedanken abzuweichen, eine Spritzbeton-Fördermaschine mit Rotor-Zuteiler so zu bauen, daß eine Abhängigkeit vom pneumatischen Förderdruck über einen Regulator auf die Vorspannelemente gewährleistet Wird.-Description and explanation of the patent and utility model application "Shotcrete conveying machine for the construction industry with automatic adjustment devices dependent on the pneumatic conveying pressure". Measures more recently used rotor machines. The wear at the sealing points between the rotor and, on the one hand, the filling device and, on the other hand, the pneumatic conveying device (pneumatic conveying pipe) is very high. For this reason, readjustment of the rotor tensioning screws is always necessary. The pretensioning of the tensioning screws against the rotor sealing disks depends on the pneumatic delivery pressure that has to be applied for the TransIDort, and this in turn depends on the blowing length @ to be bridged and @ suddenly occurring clogging tendencies. These constantly changing conditions do not allow precise manual bracing of the sealing surfaces against the rotor. It is often the case that the worker tightens the tensioning screws 1. irregularly and 2. too tightly for the corresponding pneumatic delivery pressure. This results in increased wear. In order to largely eliminate these disadvantages, it is proposed according to the invention to provide a shotcrete conveying machine with an automatic tensioning device as shown in the accompanying drawing. In the accompanying drawing is shown with 1 the pneumatic delivery pipe, -with 2 a regulator for compressed air or oil pressure, with 3 the adjustment device, zh compressed air-. or oil pressure cylinders and the like. Operation of the embodiment according to the invention: According to the pneumatic delivery pressure in the delivery pipe 1, the regulator 2 for compressed air or oil pressure is given a correspondingly high pulse. The regulator 2 then regulates depending on the pneumatic delivery pressure via compressed air or oil pressure cylinders 3, the corresponding preload on the sealing disks of the rotor. This ensures that a uniform preload on the rotor disks is guaranteed and 2.) the preload is given as a function of the conveying length and the resulting pneumatic conveying pressure. Of course, the invention is not limited to the embodiments shown and described in detail above, but numerous modifications are possible without, however, deviating from the basic idea of building a shotcrete conveying machine with a rotor dispenser in such a way that it depends on the pneumatic delivery pressure via a Regulator on the pretensioning elements is guaranteed.

Claims (2)

Patent- bzw. Gebrauchsmusteransprüche: 1. Spritzbeton-Fördermaschine für die Bauindustrie, gekennzeichnet durch eine Vorrichtung, die in Abhängigkeit vom pneumatischen Förderdruck die Vorspannung der Dichtscheiben des Rotors reguliert. Patent or utility model claims: 1. Shotcrete conveying machine for the construction industry, characterized by a device which regulates the pretensioning of the sealing disks of the rotor as a function of the pneumatic conveying pressure. 2. Nach Anspruch 1, dadurch gekennzeichnet, daß vom Förderrohr leine Zeitung zum Regulator 2 führt und dieser Regulator einen Impuls auf ein Preßluft- oder Hydrauliksystem ausübt, wodurch Nachstellvorrichtungen, die vorzugsweise als Pneumatik- oder Hydraulikzylinder (3) ausgebildet sind, abhängig vom pneumatischen Förderdruck eine gleichmäßige Verspannung auf den Rotor ausüben. 2. According to claim 1, characterized in that the conveyor tube leads newspaper to the regulator 2 and this regulator exerts a pulse on a compressed air or hydraulic system, whereby adjusting devices, which are preferably designed as pneumatic or hydraulic cylinders (3), depending on the pneumatic Delivery pressure exert an even tension on the rotor.
DE19681684288 1968-01-02 1968-01-02 Adjustment device for sealing washers of a shotcrete conveying machine Expired DE1684288C3 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB5940668A GB1246494A (en) 1968-01-02 1968-12-13 Impellers such as are used in nozzle-spraying concrete
FR1597191D FR1597191A (en) 1968-01-02 1968-12-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH0064937 1968-01-02

Publications (3)

Publication Number Publication Date
DE1684288A1 true DE1684288A1 (en) 1970-07-23
DE1684288B2 DE1684288B2 (en) 1973-05-24
DE1684288C3 DE1684288C3 (en) 1973-12-06

Family

ID=7162924

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19681684288 Expired DE1684288C3 (en) 1968-01-02 1968-01-02 Adjustment device for sealing washers of a shotcrete conveying machine

Country Status (1)

Country Link
DE (1) DE1684288C3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4486156A (en) * 1981-06-09 1984-12-04 Maschinenfabrik Walter Scheele Gmbh & Co. Kg Concrete pump with buttressed distribution pipe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4486156A (en) * 1981-06-09 1984-12-04 Maschinenfabrik Walter Scheele Gmbh & Co. Kg Concrete pump with buttressed distribution pipe

Also Published As

Publication number Publication date
DE1684288C3 (en) 1973-12-06
DE1684288B2 (en) 1973-05-24

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)