Classifications

• • 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
• • 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
  • E04G21/0418—Devices for both conveying and distributing with distribution hose
  • E04G21/0436—Devices for both conveying and distributing with distribution hose on a mobile support, e.g. truck
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T137/00—Fluid handling
  • Y10T137/8593—Systems
  • Y10T137/8807—Articulated or swinging flow conduit

Definitions

• the invention relates to a ner divider device according to the preamble of patent claim 1.
• Such ner divider devices are used in particular for conveying concrete in building construction, for example to move concrete ceilings into buildings. Depending on the height and size, it may be necessary to spread the concrete over a wider area.
• ner splitter systems which are mostly formed from a ner splitter mast on several mast sections and which are transported or stationary on transport vehicles, on cranes or the like. When it comes to placing booms, it is important to be able to serve a maximum distribution field for conveying concrete by skillfully dividing the mast into individual mast sections that are articulated or telescopically connected.
• This high mobility of the distributor boom is particularly important in the front area of the distributor boom that is near the tip of the distributor.
• the stretching function is of greater importance because of the achievable height and width.
• a length adjustment of the concrete delivery lines must be ensured.
• the distribution device is mounted on a bogie of a truck and has a telescopic base boom, the length adjustment of which is achieved by a scissor system made up of several conveyor line elements.
• a scissor system made up of several conveyor line elements.
• the known conveyor line scissors for length adjustment to the telescopic stroke of a basic boom, at least three conveyor line elements are used in a row. These conveying line elements are arranged in such a way that they can be folded between a folded position in the retracted telescopic end position and between an extended position of the conveying line elements in the extended telescopic end position.
• each of the conveyor line elements swings by approximately 180 ° during the telescopic process and takes up a vertical position in relation to the telescopic direction.
• the known conveyor line scissors require at least three conveyor line elements, of which the two external ones are each articulated with one of their ends to the centrally arranged conveyor line element and attached with their other ends to the respective telescopic part of the placing boom and connected there to the supplying and discharging concrete delivery line.
• the outer conveying line elements are in principle of no importance for the telescopic length compensation because they only perform an insignificant evasive movement perpendicular to the telescopic longitudinal axis in relation to the telescopic tubes carrying them, to the extent that the articulation points on the middle conveying line element change vertically during the telescopic process remove the telescopic longitudinal axis.
• the telescopic length compensation is therefore carried out exclusively by swiveling the middle conveyor line element. This is mounted centrally on an element guided on the distributor boom in the longitudinal direction of the boom and, due to the arrangement encompassing the mast profile, only up to approximately 120 ° swiveling.
• the known concrete distributor device thus has the disadvantage that it builds comparatively large in the transverse direction, which, however, is disadvantageous in view of the fact that with such distributor devices, a large number of interlocking mast sections have to be accommodated in the tightest of spaces, including the ones carried thereby, in individual cases Sections of subdivided concrete delivery line along with the other accessories of the distributor device.
• a more compact and simpler design of a distributor device with telescopic mast section is of increasing importance.
• the object of the invention is to provide a distributor device which is particularly suitable for conveying concrete and which, with a comparatively simple and structurally compact structure, enables a desired length adjustment of a concrete delivery line to a telescopic mast.
• the aim here is to achieve the length adjustment with as few components as possible and to allow the greatest possible flexibility of the structural design in such a way that it is also possible to adapt to predetermined conditions of the distribution boom structure or of the vehicle on which the structure is possibly mounted.
• the articulation points of the two conveying line elements articulated to the telescopic tubes are arranged essentially alternately crosswise in the two telescopic end positions of the placing boom section.
• the two articulation points of the delivery line elements run past one another, with the delivery line elements in both tele are in the extended position, but in one end position against the concrete conveying direction and in the other in the direction of the concrete conveying direction.
• the conveyor line elements are directly articulated to one another.
• two conveyor line elements are expediently used, which are fixed at one end to the telescopic tubes and articulated directly to one another at the other end.
• the delivery line shear is built without exception from elements relevant to length compensation.
• the two conveyor line elements relevant to length compensation have approximately the length of one V of the stroke of the telescopic mast section.
• Each of the conveying line elements pivots through approximately 180 ° during the entire telescopic process and in the process assumes a vertical position in relation to the telescopic direction.
• the use of the roll folding principle according to the invention ensures that this vertical position of both conveying line elements never takes place simultaneously, but one after the other.
• the system height i.e. the space requirement, makes up about a Y of the telescopic stroke, which corresponds approximately to the length of an individual conveyor line element.
• This is advantageous for the compact construction of the delivery line shears. Not only can the total system height, depending on the number of conveyor line elements, only be approximately X ⁇ or less of the stroke, but also any intermediate pieces and the associated additional construction work are eliminated. Overall, the moving components and the required joints including their displacement are also reduced.
• the articulation points of the conveyor line elements on the telescopic tubes which are movable relative to one another are offset from one another, as a result of which the articulation points of the conveyor line scissors form a statically determined triangle in each phase of the telescopic movement, so that the an forces acting on the conveyor line elements are statically determined at all times, which is important for the design, the stability and the durability of the structure.
• the articulation points move on precisely defined paths, namely the fixed articulation points on paths parallel to the telescopic direction relative to each other.
• each conveyor line element is essentially C-shaped, with adjacent and directly articulated conveyor line elements essentially resulting in an S-shape or waveform with two oppositely directed amplitudes.
• the two conveyor line elements can run past one another with a small space requirement.
• FIG. 1 is a side view of part of a placing boom for concrete in a schematic representation and in the retracted telescopic position
• FIG. 2 is a plan view of the concrete placing boom shown in FIG. 1,
• FIG. 3 is a view of the concrete placing boom shown in FIG. 1 in the extended telescopic end position and in side view,
• FIG. 4 is a top view of the concrete placing boom of FIG. 3;
• FIG. 5 is a view of a schematic representation of a concrete placing boom with schematic representations of different telescopic positions
• 6 is a view of a further embodiment analogous to FIG. 5,
• FIG. 7 shows an embodiment with an arrangement according to the invention of conveying line elements with various intermediate stages of telescopic positions arranged below (functional diagram),
• FIG. 8 shows a further variant of FIG. 7,
• FIG. 9 shows a further variant of FIG. 7,
• FIG. 10 shows a further variant of FIG. 7,
• FIG. 11 shows a telescopic distributor mast section constructed from three telescopic tubes, according to the invention.
• Fig. 12 shows a telescopic distributor mast with the reverse arrangement.
• FIG. 1 shows a purely schematic and partial illustration of a placing boom for thick materials, in particular concrete, which can be arranged, for example, at 1 on a transport conveyor vehicle, for example a truck.
• a placing boom for thick materials in particular concrete
• Such placing booms are used to convey concrete on site by means of a concrete pump, for example to erect a concrete ceiling, the placing boom, which is generally made up of several mast sections, being able to sweep over a wide distribution field by pivoting and extending the sections.
• the placing boom shown has a telescopic mast section 2 which can be pivoted about the structure 1 and which, as shown in FIG. 3, is constructed from a first telescopic tube 3 and a second telescopic tube 4 which can be extended in relation thereto.
• the extendable telescopic tube ie here the telescopic tube 4 is arranged so as to be extendable within the telescopic tube 3, although the position shown in FIG. 3 is also possible in which the telescopic tube 3 overlaps within, ie from the telescopic tube 4, is arranged.
• the concrete placing boom serves as a support for the actual concrete delivery line, which is made up of several, articulated concrete delivery pipes.
• the invention is concerned with the concrete delivery line in the area of the telescopic distribution mast section, since a length adjustment of the concrete delivery line arranged in this area is necessary due to the telescopic extension of the telescopic pipes.
• conveyor line elements with regard to the concrete conveyor pipes arranged in this area.
• the concrete delivery line is arranged next to the placing boom 2.
• a concrete conveying pipe 5 which is fastened at 6 to the telescopic pipe 3 and, due to the articulated connection 7, can also be pivoted by pivoting the telescopic placing boom section 2.
• the concrete delivery pipe 5 is fixed with respect to the telescopic pipe 3 via a bearing block 8.
• a conveyor line element 9 adjoins this concrete delivery pipe 5, which is pivotally mounted at one end at 10 on the bearing block 8 and is otherwise fixed in a longitudinally immovable manner. This means that the conveying line element 9 can be pivoted with respect to the axis 11.
• FIG. 1 and 2 show the telescopic boom section 2 in its retracted telescopic end position.
• this mast section 2 is connected in a known manner to further mast sections 19 and 20 which are folded in or rolled up and can be rolled out or unfolded upwards and forwards after the telescopic distribution boom section 2 has been extended and pivoted.
• Corresponding joints are designated by 21 and 22, but this fact does not require any further discussion here. Also, possibly subsequent concrete delivery lines which are carried by these mast sections 19 and 20 are not shown here.
• the conveying line elements 9 and 13 are in the extended position, the conveying line elements 9 and 13 extending counter to the concrete conveying direction F in this extended position.
• the conveying line element 13 moves with its articulation point 15 in the telescopic direction and runs depending on the telescopic extension.
• the articulation points 10 and 15 are alternately arranged crosswise to one another, that is to say the articulation point 15 arranged to the left of articulation point 10 in FIG.
• FIG. 5 shows the basic structure of a conveyor line scissors made of conveyor line elements 9, 13, as already explained with reference to FIGS. 1-4, the same reference numerals being used for the same components.
• the telescopic distributor mast is shown in the retracted telescopic end position on the top left and the extended telescopic tube is shown schematically on the right.
• the delivery line elements 9 and 13 being shown only schematically as straight lines to explain the functional course.
• the ends of the two conveyor line elements 9 and 13 at 10 and 15 are firmly displaced relative to the corresponding telescopic tubes 4 and 3, but a pivoting movement within the joint is made possible.
• the conveying line element 9 swivels upwards when the telescopic tube 4 begins to extend and the articulation point 15 runs in the conveying direction F to the right.
• the course of the articulation point 15 here runs on a straight line parallel to the telescopic axis of the telescopic structure, the articulation point 15 evidently being offset by a distance h from the fixed articulation point 10, and consequently the course of the articulation point 15 over its entire path by the distance h is offset.
• the articulation point 15 passes Finally, the articulation point 10 and the conveyor line shear arrives from the functional position shown above with the extended position of the elements 9 and 13 against the conveying direction F in the extended position in the concrete conveying direction F according to the illustration below.
• the maximum deflection transverse to the concrete conveying direction F is evident when the articulation point 15 is located below the joint between the two elements 9 and 13, the transverse extent being determined in principle by the length of the conveying line element 13. Since it is also advantageously possible to design the lengths of the two delivery line elements differently, in the configuration of a delivery line scissor assembly shown in FIG. 5, the delivery line element 13 can be chosen to have a shorter length than the other delivery line element 9 or vice versa.
• FIG. 6 A further advantageous embodiment results from FIG. 6, in which the conveying line elements 9, 13 are acted upon by a pivoting moment directed here against the unfolding movement of the scissors and acting here elastically.
• This can be achieved, for example, by providing a spring device 23, which is only indicated schematically and which, in the exemplary embodiment shown, is fixed with respect to the telescopic tube 3 and is articulated at the other end to the conveying line element 9.
• the conveying line element is acted upon by the elastically acting pivoting moment, which is supported by its end, here the articulation point 10, on the non-extendable part, here the telescopic tube 3.
• This embodiment favors the stability of the delivery line shear in all intermediate positions including the end positions.
• FIG. 7-10 show different structural variants of the conveyor line scissor system according to the invention, which can be selected depending on the structural conditions specified on the vehicle, which enables a suitable adaptation to the overall structure of the device.
• the position or the position can be determined and thus adjusted, due to which the vertical arrangement of one of the conveying line elements 9, 13 causes the sets the maximum width of the folded state of the delivery line shears.
• influencing is also possible by arranging the conveyor line elements with different lengths.
• the conveying line element 9 is displaced on the fixed telescopic tube 3 with its articulation point 10, whereas the articulation point 15 of the element 13 on the extendable telescopic tube 4, the extended position in the telescopic end position shown above being such that the articulation point between the two Delivery line elements 9 and 13 is arranged in a slight kink upwards.
• the functional sketches underneath show the different positions of the delivery line scissors during the extension or retraction of the telescopic tube 4. It is generally expedient if, as can be seen from the middle functional representation, at the point at which the two fixed pivot points 10 and 15 happen to each other, there is a certain angular distance between the two scissors 9 and 13, that is, the distance between the articulation points 10 and 15 is not equal to 0. This is achieved by displacing the articulation points 10 and 15 according to the upper illustration in FIG. 7.
• the situation is reversed as far as the articulation points of the scissors elements 9, 13 are concerned.
• the articulation point 10 which is fixed with the fixed telescopic tube 3, is arranged offset downward with respect to the other articulation point 15, and the stretched position in the retracted telescopic end position has a kink downward.
• Fig. 10 shows a structure analogous to Fig. 9, but with an upward kink in the extended position in the retracted telescopic end position of the scissor assembly.
• FIG. 11 shows the construction of a telescopic distribution boom section 2, consisting of three telescopic tubes 3, 4 and 24.
• two conveyor line scissors 9, 13 and 9 ', 13' are provided for length adaptation to the telescopic stroke.
• the articulation points 15 and 15 ' are connected by a concrete delivery pipe 25 shown in broken lines.
• the other two articulation points are labeled 10 and 10 '.
• the conveyor line elements are articulated to one another at 12 or 12 '.
• the component provided with reference numeral 26 designates a hydraulic cylinder which serves to pivot the mast section adjoining the telescopic mast section 2.
• FIG. 12 finally shows a construction of a delivery line scissors 9, 13, with the distribution boom telescope arranged in reverse, which avoids the collision between the delivery line system and the delivery boom joint drive.

Landscapes

• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Mechanical Engineering (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
• Extrusion Moulding Of Plastics Or The Like (AREA)
• Road Paving Machines (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=7885960

Family Applications (1)

Country Status (13)

Families Citing this family (26)

Family Cites Families (6)

• 1998
  • 1998-10-28 DE DE19849747A patent/DE19849747C5/de not_active Expired - Fee Related
• 1999
  • 1999-10-15 KR KR10-2001-7005191A patent/KR100467225B1/ko not_active IP Right Cessation
  • 1999-10-15 AT AT99953859T patent/ATE232258T1/de active
  • 1999-10-15 JP JP2000578536A patent/JP4187416B2/ja not_active Expired - Fee Related
  • 1999-10-15 CN CNB998126659A patent/CN1174153C/zh not_active Expired - Lifetime
  • 1999-10-15 DE DE59904245T patent/DE59904245D1/de not_active Expired - Lifetime
  • 1999-10-15 US US09/830,322 patent/US6463958B1/en not_active Expired - Fee Related
  • 1999-10-15 BR BR9914609A patent/BR9914609A/pt not_active IP Right Cessation
  • 1999-10-15 AU AU10397/00A patent/AU751813B2/en not_active Ceased
  • 1999-10-15 EP EP99953859A patent/EP1129265B1/fr not_active Expired - Lifetime
  • 1999-10-15 WO PCT/EP1999/007850 patent/WO2000024988A1/fr active IP Right Grant
  • 1999-10-15 ES ES99953859T patent/ES2192087T3/es not_active Expired - Lifetime
  • 1999-10-15 TR TR200101203T patent/TR200101203T2/xx unknown
• 2001
  • 2001-10-10 HK HK01107103A patent/HK1036308A1/xx not_active IP Right Cessation

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events