EP2057328B1 - Arrangement for conveying concrete with a height-adjustable concrete-distributing mast - Google Patents

Abstract

The invention relates to an arrangement for conveying concrete for the construction of multi-storey concrete buildings. The arrangement comprises a concrete-distributing mast which is height-adjustable on completed parts of the building, for example on storey floors (48′, 48″, 48′″), the mast comprising a supporting column (10), a rotary unit (12) and an arm assembly (14) preferably designed as an articulated boom, and the mast being equipped with a conveying line (16) which is guided over the height of the supporting column (10) to the arm assembly (14) and which is supplied with liquid concrete. To facilitate the handling of the concrete-distributing mast during transportation and during the climbing operation, the invention proposes that the supporting column (10) has at least one channel-shaped surface depression (36, 38) extending in the longitudinal direction of the column, in which depression can be sunk that part of the conveying line (16) which extends over the supporting column (10), and/or an elongate part of the climbing apparatus (52).

Description

The invention relates to a stationary concrete distributor arrangement according to the preamble of claim 1.

It is an arrangement of this type with height-adjustable concrete boom known, in which the support column designed as a pillar column is built freestanding at start of construction on a base and from there initially two ceilings of the building are concreted. When shuttering ceiling openings are formed through which engages the tubular column. Each ceiling breakthrough is equipped with automatically swinging pawls and recordings for a hydraulic climbing device. The hydraulic climbing device consists of at least one hydraulic cylinder, at least one guided on the pipe column claw and automatically swinging pawls for climbing. After the first two ceilings are concreted with their ceiling openings, climbing can be started. The tube column is gradually moved over each ceiling height. In addition, after a given Gesamtkletterhub in the delivery line an extension piece of appropriate length must be used. In known climbing masts of this type ( US 6,226,955B1 and DE-4200669A1 ) are the concrete delivery line and the climbing device out of the usually designed as a cylinder column support column up to the arm package. This requires additional arrangements in the area of the ceiling breakthrough and during transport of the support columns, which are perceived as disadvantageous.

D3, which is regarded as the closest prior art, already shows a concrete distributor arrangement according to the preamble of claim 1.

Proceeding from this, the present invention seeks to develop a concrete conveyor with height adjustable concrete boom, which allows a simplification of transport and easier handling in the course of climbing the building.

To solve this problem, the feature combination specified in claim 1 is proposed. Advantageous embodiments and modifications of the invention will become apparent from the dependent claims.

The solution according to the invention is based primarily on the idea that the handling of the climbing mast in the course of the climbing process can be facilitated by the fact that the concrete delivery line extending over the support column and / or the climbing device are sunk within the supporting leg contour but nevertheless positioned in an easily accessible manner. To achieve this, it is proposed according to the invention that the support column has at least one groove-shaped jacket depression extending in the longitudinal direction of the column, in which, in particular, the part of the delivery line extending over the support column can be recessed but easily accessible. Does the support column on a second channel-shaped shell recess, in which an elongated climbing device of the climbing mast can be arranged with climbing rail. The two channel-shaped shell recesses are expediently arranged on diametrically opposite shell sides of the support column.

A preferred embodiment of the invention provides that the support column of at least two frontally releasably interconnected column sections is composed, which have in the region of the coupling point merging channel-shaped shell recesses.

The climbing mast expediently engages with its support column through apertures in the finished floor slabs which are adapted in the opening cross-section and have somewhat excess dimensions, and are supported in a height-adjustable manner at the boundary edges thereof. For this purpose, strength-increasing metal plates can be placed on the breakthrough edge. For supporting support pegs or support pins are provided on a special piece of climbing the support column, which can be supported by a climbing operation by lowering the support column on the next lower floor ceiling.

The invention provides that the support column or its columnar sections are designed as square tubes, and that the channel-shaped jacket recesses are formed in two opposite side surfaces of the square tubes. The shell recesses may have a U- or V-shaped inner profile.

According to an advantageous or alternative embodiment of the invention, the concrete boom has a climbing device having a fixed to the support column climbing rail, a lower and an upper guided on the climbing rail guide carriage and supported between the lower and the upper guide carriage lifting mechanism, the lower Guide carriage has from the support column outwardly facing support member, while the lower and the upper guide carriage each have an optional engageable with the climbing rail locking member. A preferred embodiment of the invention provides that the climbing rail has a plurality of spaced-apart hole windows, that the locking member is pressed against the climbing rail and locks at the height of the hole window in this like a latch and there abuts with an upwardly facing stop edge against the upper hole window edge blocking. Suitably, the locking member engages under the action of a spring in one of the hole windows.

Advantageously, the lifting mechanism is designed as a hydraulic cylinder whose cylinder and piston rod are connected to the lower and the upper guide carriage. The support member of the lower guide carriage is advantageously designed as a pivoting claw, which is selectively pivotally limited between a folded against the guide carriage displacement position and a outwardly projecting support position.

A further preferred embodiment of the invention provides that the climbing device comprises a arranged in the region of the upper end of the climbing rail tensioning mechanism which is connected via a tension member in operative connection with the guided along disengaged locking members along the climbing rails, interconnected by the lifting mechanism guide carriage.

A further preferred embodiment provides that at least one displaceable or pivotable between a displacement position and a support position supporting element is arranged on the lower column section. The lowermost column section also expediently has downwardly projecting, releasably connectable coupling tabs with a bottom-fixed base.

With these measures it is achieved that the concrete boom can be moved gradually supported by supporting the Abstützorgans of the lower guide carriage on a floor ceiling and taking along the support column by the locked with his locking member in a hole window upper guide carriage upwards. In the extended end position of the Lifting mechanism engages the locking member of the lower guide carriage in a hole window, so that for the next lifting step of the lifting mechanism with the upper guide carriage can be moved back, while the support column is held by the lower guide carriage with its locking member. This process is repeated until the lower column section with its support element is located above the next floor slab and can be locked there while holding the support column. In this position, the entire climbing device consisting of the two guide carriage and the lifting mechanism located therebetween can be pulled upwards through the opening of the relevant floor slab with the aid of the pulling mechanism along the climbing rail and supported there by exhibiting the supporting member located on the lower guide sled on this floor slab. From there, the next floor can be concreted. For this purpose, the support column is wedged in the openings of the floor slabs against tilting and fixed.

Fig. 1a

und b eine schaubildliche Darstellung eines höhenverstellbaren Betonverteilermasts mit Fußkreuz in Grundstellung mit Sicht auf die Rohrleitungsseite und auf die Seite der Klettereinrichtung;

Fig. 1c

und d eine schaubildliche Darstellung des mit seiner Tragsäule durch Durchbrüche von zuvor betonierten Geschossdecken hindurchgreifenden Betonverteilermasts in gegenüber der Grundstellung angehobener Stellung mit Sicht auf die Rohrleitungsseite und auf die Seite der Klettervorrichtung;

Fig. 2

eine schaubildliche Darstellung einer Säulenpartie des Betonverteilermasts mit integrierter Förderleitung;

Fig. 3a

und b zwei um 90° gegeneinander verdrehte Seitenansichten der Säulenpartie nach Fig. 2;

Fig. 4

einen Schnitt entlang der Schnittlinie A-A der Fig. 3b;

Fig. 5a

und b zwei Seitenansichten einer auf einem Sockelfußkreuz aufstehenden, aus drei Säulenpartien zusammengesetzten Tragsäule mit Drehwerk ohne Knickausleger;

Fig. 6

die Einzelteile der Tragsäule mit Drehwerk in schaubildlicher Explosionsdarstellung;

Fig. 7a

bis c einen Ausschnitt des Klettermasts beim Hochziehen der Klettervorrichtung in drei Positionen der Führungsschlitten mit Hubmechanismus zwischen zwei Geschossdecken;

Fig. 7d

eine Draufsicht auf den Klettermast mit rinnenförmigen Mantelvertiefungen zur Aufnahme der Förderleitung und der Klettervorrichtung;

Fig. 8a

bis c eine Seitenansicht und zwei schaubildliche Darstellungen der Klettervorrichtung;

Fig. 8d

einen Ausschnitt aus der Tragsäule mit Klettervorrichtung in schaubildlicher Darstellung;

Fig. 9a

und b einen Ausschnitt aus dem oberen oder unteren Führungsschlitten mit Sperrklinke in Sperrstellung und in Freigabestellung.

In the following the invention will be explained in more detail with reference to an embodiment shown schematically in the drawing. Show it

Fig. 1a

and b is a perspective view of a height-adjustable concrete boom with base in basic position with view on the pipe side and the side of the climbing device;

Fig. 1c

and d is a perspective view of the concrete column with its supporting column through openings of previously concreted floor slabs concrete distributor in opposite the basic position raised position with a view of the pipe side and on the side of the climbing device.

Fig. 2

a perspective view of a column section of the concrete distributor mast with integrated conveyor line;

Fig. 3a

and b two rotated by 90 ° from each other side views of the column section after Fig. 2 ;

Fig. 4

a section along the section line AA of Fig. 3b ;

Fig. 5a

and b two side views of a standing on a pedestal base, composed of three columns columns support column with slewing without articulated boom;

Fig. 6

the individual parts of the support column with slewing in a perspective exploded view;

Fig. 7a

to c a section of the climbing mast when pulling the climbing device in three positions of the guide carriage with lifting mechanism between two floors;

Fig. 7d

a plan view of the climbing pole with channel-shaped shell recesses for receiving the delivery line and the climbing device;

Fig. 8a

to c a side view and two perspective views of the climbing device;

Fig. 8d

a section of the support column with climbing device in perspective view;

Fig. 9a

and b is a section of the upper or lower guide carriage with pawl in the locked position and in the release position.

The illustrated in the drawing, height-adjustable concrete boom consists essentially of a support column 10, arranged at the upper end of the support column 10 slewing gear 12, designed as a buckling arm package 14 and over the height of the support column 10 to the arm package 14 guided, can be acted upon with liquid concrete delivery line 16. The support column 10 has in the illustrated embodiment, three substantially square tubes trained as pillar parts 18,20 ', 20 ", which are rigidly connected at their front ends in alignment with each other on axially projecting tabs 22 by means of bolts 24 , shorter column section 18 forms a climbing piece, which is fixed at the beginning of the construction work on a base foot 26 in the region of a foundation plate 28. The two longer column sections 20 ', 20 "are placed one after the other. On the outside of the upper column section 20 ", a ladder element 30", 30 "'composed of a base ladder 30' and two catching cages is fixed, The ladder terminates in a working platform 32 located at the upper end of the support column 10. At the front end of the upper column section 20 "is the slewing gear 12, on which the arm package 14 is mounted, via which the delivery line 16 is guided to a terminal tube.

A special feature of the invention is that the support column 10 with its column sections 18,20 ', 20 "in the region of two opposing Side walls each having a groove in the longitudinal direction extending groove-shaped shell recess 36,38 having in the embodiment shown a V-shaped inner profile (see. Fig. 2 . 4 and 7d ). One of the two shell recesses 36 is for receiving the assembled state, the delivery line 16 forming pipe sections 40 which are positioned on pipe supports 42 so that they are completely sunk into the shell recess 36 (see. Fig. 4 and 7d ). The shell recesses 36,38 are also suitable for accommodating supply lines and, in the case of the lower longer columns lotie 20 ', to accommodate a climbing device 52 with elongated, provided with hole windows 44 climbing rail 46th

The distribution boom is at the start of construction with its support column 10 freestanding on the base foot 20 ( Fig. 1a and b ). From there, first two roofs 48, 48 "of the building are concreted in. In the shuttering, ceiling openings 50 ', 50" are introduced, through which the support column 10 passes. Alternatively, it is possible to prefabricate the two first covers 48 ', 48 "of the structure, for example by means of a truck-mounted concrete pump and put the two pre-assembled column sections 18,20' through the ceiling openings 50 ', 50" on the base base 20 and with this connect. The upper column section 20 ", on which the ladder 30 ', 30", 30 "' and at least a part of the working platform 32 have been previously attached, can then be placed on the upper edge of the column section 20 'and subsequently fitted with the arm package 14 In both cases, the third floor 48 "'is concreted from the base position.

The two first floors 48 ', 48 "ensure in the region of the openings 50', 50" that the support column 10 can be held in its vertical orientation. During the concreting of a new floor slab 48 "', the support column in the area of the openings 50', 50" is wedged with the floor slabs 48 ', 48 ".

After the third ceiling 48 "'is concreted with its breakthrough 50"', can be started with the climbing. For this purpose, the wedging is firstly released in the openings 50 ', 50 ", and the support column 10 is also separated from the base foot cross 20 before the first lifting step, after which the support column 10 is moved stepwise upwards over the respective lowest ceiling height 52, a arranged in a shell recess 38 of the column section 20 'climbing rail 46, a lower and an upper guided on the climbing rail 46 guide carriages 54,56 and arranged between the lower and the upper guide carriage, designed as a hydraulic cylinder lifting mechanism 58. The lower Guide carriage 54 has a pivoting claw designed as a support member 60 which between a folded against the guide carriage down shift position ( Fig. 8b ) and an outwardly projecting support position ( Fig. 8c and d ) is limited pivotable. In addition, the lower and upper guide carriages 54, 56 have a pawl-like blocking element 62, 64, which can optionally be coupled to the climbing rail 46 in the region of the perforated windows 44. The locking members 62,64 are pressed under the action of a spring 66 against the climbing rail, so that they engage in the hole windows 44 of the climbing rail 46 and can be supported there locking against the upper edge of the perforated window. The climbing device with the lifting mechanism 58 and arranged on the guide carriage 54,56 locking members 62,64 allows a gradual lifting of the support column on the climbing rail 46th

In order to ensure an exact guidance in the area of the openings, guide plates 76 with rectangular notches 78 are fixed to the floor slabs at the break-through corners, at the notches of which the support column 10 is guided in its edge region. The jacket depressions 36, 38 are offset somewhat inwards for this purpose, so that the jacket regions adjacent to the edges of the notches 78 are parallel to the Notches go (cf. Fig. 7b ). There, the wedges 80 provided for the wedging of the support column 10 are also positioned ( Fig. 7a to d ).

During the climbing process, the lower guide carriage is supported by means of its support member 60 at the respective lowest floor ceiling, while the upper guide carriage 56 engages with its locking member 62 in a hole window 44 of the climbing rail 46. Then, the lifting cylinder 58 of the lifting mechanism 58 is acted upon with pressure oil, so that the upper guide carriage 46 is moved with entrainment of the support column 10 upwards. In the upper end position of the lifting mechanism 58, the locking member 64 of the lower guide carriage 54 engages in an adjacent hole window of the climbing rail under the action of the associated spring 66 and holds the support column in its raised position, while the upper guide carriage 46 via the lifting mechanism 58 back down is moved and there with his locking member 64 engages again in a hole window 44. Then another lifting step is triggered. This process is repeated until the lowermost column section 18 of the support column with its support element 90 passes through the opening 50 'of the relevant floor slab 48'. There, the support member 90 is extended and takes over from there on the support of the concrete placing boom during the concreting of the next floor ceiling.

Before concreting, the support column is again wedged in the openings 50 ", 50"'of the ceiling 48 ", 48"' and the guide carriages 54,56 together with the lifting mechanism 58 of the climbing device by one floor through the opening 50 "of the floor ceiling 48" pulled up ( Fig. 7a to c). For this purpose, the climbing device 52 has a trained in the embodiment shown as a winch tension mechanism 68 which is fixed in the upper region of the climbing rail 38 and is connected via a pull cable 70 in operative connection with the guide carriage 54,56 and the lifting mechanism 58. Pull the guide carriages 54,56 upwards To be able to, the locking members 62,64 must be pulled into its pivoted position, which can be done against the force of the springs 66, for example via the pull cable 70 with a pivoting lever 74 located in the guide carriage ( Fig. 9a and b ). The in the shell recess 58 of the associated column section 20 'sunk arranged guide carriage 54,56 including lifting mechanism 58 pass through the substantially rectangular openings 50', 50 ", 50"'of the floors through. During the pulling up, the support member 60 in the lower guide carriage 54 is folded down so that it also fits through the respective aperture. In the pulled-up end position the support member 60 is folded outwards again and lowered onto the floor slab. Thus, the lifting mechanism for a new lifting of the concrete placing boom is ready as soon as the next floor slab is concreted with breakthrough ready. The lifting process can be repeated as required until the last floor slab is completed. At the end the open ceiling openings 50 ', 50 ", 50"' are closed with a concrete cover.

In summary, the following should be noted: The invention relates to an arrangement for conveying concrete for the production of multi-storey concrete structures. The arrangement comprises a finished concrete building parts, for example, on floors 48 ', 48 ", 48"' height adjustable concrete boom, which has a support column 10, a slewing gear 12 and a preferably designed as articulated arm package 14, and with a height above the support column 10 supplied to the arm package 14, acted upon with liquid concrete delivery line 16 is equipped. In order to facilitate the handling of the concrete distributor mast during transport and during climbing, it is proposed according to the invention that the support column 10 has at least one groove-shaped jacket depression 36, 38 extending in the longitudinal direction of the column, in which part of the delivery line 16 extending over the support column 10 and / or or an elongated part of the climbing device 52 can be arranged sunk.

Claims (15)

1. Stationary concrete-distributing arrangement with a climbing mast, which has a supporting column (10) for accommodating a concrete-conveying line (16), characterized in that the supporting column (10) has at least two column sections (18,20',20"), which are in the form of rectangular tubes, are detachably interconnected at their end faces and are provided with channel-shaped surface depressions (36,38) extending in the longitudinal direction of the column on two diametrically opposite side faces for accommodating elongate operating elements (16,46), the concrete-conveying line being accommodated in one of the surface depressions.
2. The concrete-distributing arrangement as claimed in claim 1, characterized in that at least one of the surface depressions (36,38) has a U-shaped or V-shaped inner profile.
3. The concrete-distributing arrangement as claimed in claim 1 or 2, characterized in that retaining elements (42) for securing the concrete-conveying line (16) are sunk in one of the surface depressions (36,38).
4. The concrete-distributing arrangement as claimed in one of claims 1 to 3, characterized in that an elongate climbing rail (46) of a climbing apparatus is sunk in one of the surface depressions (36,38).
5. The concrete-distributing arrangement as claimed in claim 4, characterized in that the climbing apparatus (52) includes a climbing rail (46) fixed to the supporting column (10), a lower and an upper guide block (54,56) guided on the climbing rail (46) and a lifting mechanism (58) supported between the lower and the upper guide blocks (54,56), that the lower guide block (54) has a supporting member (60) facing outwards from the supporting column (10) and the lower and the upper guide blocks (54,56) each have a blocking element (62,64) that is optionally couplable to the climbing rail (46).
6. The concrete-distributing arrangement as claimed in claim 5, characterized in that the climbing rail (46) has several window openings (44) positioned spaced apart, and that the blocking elements are pressed against the climbing rail (46) and are lockable in its window openings (44) and, in so doing, abut in a blocking manner against the upper edge of the window opening.
7. The concrete-distributing arrangement as claimed in claim 5 or 6, characterized in that the blocking members (62,64) are lockable in the window openings under the effect of a spring (66).
8. The concrete-distributing arrangement as claimed in one of claims 5 to 7, characterized in that the lifting mechanism (58) is in the form of a hydraulic cylinder, the cylinder and piston rod of which being coupled to each of the guide blocks (54,56).
9. The concrete-distributing arrangement as claimed in one of claims 5 to 8, characterized in that the supporting member (60), which is in the form of a pivoting claw, is restrictedly pivotable in a selective manner between a displacement position, preferably pivoted downwards against the guide block, and a support position protruding outwards.
10. The concrete-distributing arrangement as claimed in one of claims 5 to 9, characterized in that the climbing apparatus (52) includes a pulling mechanism (68), which is positioned in the region of the upper end of the climbing rail (46), said pulling mechanism being operatively connected via a pulling member (70) to the guide blocks (54,66), which, with the blocking elements (62,64) unlocked, are guided along the climbing rail (46) and are interconnected by the lifting mechanism (58).
11. The concrete-distributing arrangement as claimed in claim 10, characterized in that the pulling mechanism (68) is in the form of a pull-lift device, more especially a cable winch or block and pulley.
12. The concrete-distributing arrangement as claimed in one of claims 1 to 11, characterized in that at least one supporting element (90), which is pivotable or displaceable between a displacement position and a support position relative to the supporting column (10), is positioned at the lowermost column section (18) that is in the form of a climbing piece.
13. The concrete-distributing arrangement as claimed in one of claims 1 to 12, characterized in that the lowermost column section (18) has downwardly facing coupling brackets (22), which are detachably connected to an X-base (26) that is secured to the ground.
14. The concrete-distributing arrangement as claimed in one of claims 1 to 13, characterized in that the supporting column is a part of a height-adjustable concrete-distributing mast, which has a rotary unit (12) and an arm assembly (14) that is in the form of an articulated boom and that the concrete-conveying line (16) is guided over the height of the supporting column (10) to the arm assembly (14) and beyond the arm assembly.
15. The concrete-distributing arrangement as claimed in claim 14, characterized in that the concrete-distributing mast with its supporting column (10) reaches through openings (50',50",50"') in completed storey floors (48',48",48"') and is guided at guide plates fixed in the opening corners.

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