EP3067470B2 - Vibreur vertical et machine de construction avec un vibreur vertical - Google Patents

Vibreur vertical et machine de construction avec un vibreur vertical Download PDF

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Publication number
EP3067470B2
EP3067470B2 EP16159103.7A EP16159103A EP3067470B2 EP 3067470 B2 EP3067470 B2 EP 3067470B2 EP 16159103 A EP16159103 A EP 16159103A EP 3067470 B2 EP3067470 B2 EP 3067470B2
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EP
European Patent Office
Prior art keywords
upright
vibrator
exciter cell
cell
yoke
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.)
Active
Application number
EP16159103.7A
Other languages
German (de)
English (en)
Other versions
EP3067470A1 (fr
EP3067470B1 (fr
Inventor
Steffen Schweizer
Oliver Holland-Cunz
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.)
Liebherr Werk Nenzing GmbH
Original Assignee
Liebherr Werk Nenzing GmbH
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
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Application filed by Liebherr Werk Nenzing GmbH filed Critical Liebherr Werk Nenzing GmbH
Publication of EP3067470A1 publication Critical patent/EP3067470A1/fr
Application granted granted Critical
Publication of EP3067470B1 publication Critical patent/EP3067470B1/fr
Publication of EP3067470B2 publication Critical patent/EP3067470B2/fr
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/18—Placing by vibrating
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D11/00—Methods or apparatus specially adapted for both placing and removing sheet pile bulkheads, piles, or mould-pipes
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02—Improving by compacting
    • E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
    • E02D3/074—Vibrating apparatus operating with systems involving rotary unbalanced masses
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/02—Placing by driving
    • E02D7/06—Power-driven drivers
    • E02D7/14—Components for drivers inasmuch as not specially for a specific driver construction
    • E02D7/16—Scaffolds or supports for drivers

Definitions

  • edge vibrator or edge vibrator, which is characterized by a relatively compact design.
  • the edge vibrator is used in particular in places that are difficult to access.
  • the excitation cell is usually mounted in a drawing yoke in a way that is decoupled from vibrations.
  • the vibration decoupling is achieved by using suitable bearing components that are installed as bearings or suspension points between the drawing yoke and the excitation cell and are intended to absorb a large proportion of the vibrations.
  • the bearing components are usually distributed between the moving components, but a special systematic arrangement has not yet been investigated.
  • the symmetrical arrangement ensures that the excitation cell is evenly supported within the drawing yoke, so that undesirable movements are avoided as far as possible.
  • the number of bearing components for the front and rear of the vibrator can be the same.
  • the bearing components can be attached at appropriate points on the front and rear.
  • the arrangement is, for example, symmetrical to the ram axis or central axis of the excitation cell or the vibrating part.
  • the vibrator is ideally suited for leader-guided operation on a construction machine, whereby the draw yoke in this case has one or more guide elements to guide the vibrator at an adjustable height on the leader.
  • the vibrator is designed as an upright vibrator and can be designed for high or normal frequency operation.
  • an arrangement with several elastic bearing components is provided at the upper and lower areas of the excitation cell.
  • the upper and lower areas refer to an area along the ramming axis.
  • the excitation cell has a substantially rectangular cross-section, with two elastic bearing components being provided at the front and rear of the upper and lower areas of the excitation cell.
  • the invention does not exclude the provision of further bearing components, for example in the central region, but these are not absolutely necessary for sufficient suppression of the relative movements transverse to the ram axis.
  • one or more sliding guides are provided according to the invention, which are preferably arranged between the drawing yoke and the excitation cell. It is conceivable that the one or more sliding guides are rigidly attached to the excitation cell as well as to the drawing yoke.
  • the sliding guides are mounted by screwing, gluing, riveting, etc. Preferably, all sliding guides are either firmly connected to the excitation cell or alternatively firmly connected to the drawing yoke. In addition, it is conceivable to firmly connect some of the sliding guides to the excitation cell while the remaining part is firmly mounted to the drawing yoke.
  • the one or more sliding guides are attached to the side surfaces between the drawing yoke and the excitation cell, for example, one sliding guide per side surface is located on the upper and lower area of the side surface as seen in the ramming direction. It is particularly preferred if at least one, preferably all of the sliding guides are located on the center plane of the vibrating component of the excitation cell. This places the sliding guide on the ramming plane of the moving mass and an even load is applied to all of the sliding guides.
  • the wear phenomena that occur on the one or more sliding guides should be reduced. This is achieved by a tribologically optimized geometry of the sliding guides used or a tribologically optimized geometry of the contact surface between the sliding partners of the sliding guide.
  • the contact and the associated friction force can be noticeably reduced by a convex contour of the contact surface of at least one sliding partner of the sliding guide. This not only has a positive effect on the energy transfer, but also reduces contact-related wear phenomena on the sliding guides.
  • the tribologically optimized geometries of the sliding surfaces allow prevailing contact forces to be evenly distributed across all bearings or guides used.
  • the sliding guides used are at least partially made of technical ceramics.
  • at least one sliding partner of at least one sliding guide consists of technical ceramics or includes them.
  • Technical ceramics are a very hard, wear-resistant material, which can effectively reduce the operational wear of the sliding guides and increase the durability of the vibrator.
  • the sliding part of the vibrator for example the drawing yoke, is usually made of steel, so that a very hard and wear-resistant sliding partner slides on the steel counter-body with little wear.
  • the invention also includes a construction machine with at least one vibrator according to the present invention or an advantageous embodiment of the invention. It is conceivable that the construction machine has at least one leader in order to accommodate the vibrator so that it can be moved in the ramming direction. It is conceivable that the construction machine a rope excavator with a corresponding leader.
  • Figure 1 shows a side view of the vertical vibrator according to the invention, as it is used in particular in civil engineering for the installation of vibro-filled columns or sheet pile walls.
  • the vibrator can be suitable for normal frequency or high frequency vibration for vibrating in the steel profiles.
  • the illustration shows the pulling yoke 10, on the back of which a guide rail 11 is formed.
  • the pulling yoke 10 can be attached vertically to a leader of a suitable construction machine as an attachment tool.
  • the exciter cell 20 protrudes from the lower end of the pulling yoke 10.
  • the vibrator clamp which is usually attached to the protruding underside of the exciter cell 20 for clamping a steel profile to be vibrated in.
  • one or more excitation cell shafts are mounted, preferably aligned parallel to one another, each of which is rotatably mounted and comprises eccentrically mounted unbalanced masses, which generate the desired vibration movement through the rotation of the excitation shafts.
  • An integrated drive preferably of a hydraulic type, is provided for the rotation movement.
  • vibration in the direction of the ramming axis is particularly desirable, which can be seen, for example, in the sectional views of the Figures 3,4 marked with the reference symbol A.
  • the ramming axis A extends parallel to the leader in the assembly and operating position of the vibrator.
  • the undesirable transverse accelerations and transverse forces transverse to the ramming axis are to be reduced by supporting the excitation cell 20 within the pulling yoke 10 via a symmetrical arrangement of elastomer bearings 30.
  • These bearings 30 serve as bearing points and attachment points for the excitation cell 20 within the pulling yoke 10.
  • these cuboid-shaped elastomer bearings 30 are arranged symmetrically to the ramming axis A, whereby the undesirable transverse forces and transverse movements can be optimally dampened. This results in an almost optimal vibration decoupling of the excitation cell 20 within the drawing yoke 10.
  • Symmetrical mounting of the excitation cell 20 here explicitly refers to the double-symmetrical suspension of the excitation cell 20 in the drawing yoke 10. This means that the excitation cell 20 is mounted symmetrically in relation to two cutting planes along the ramming axis in a vibration-damping manner. One of these cutting planes is the ramming plane and the other cutting plane is a plane rotated by 90° to the ramming plane around the ramming axis.
  • the bearing concept provides for the excitation cell 20 to be mounted at the top and bottom of the drawing yoke 10. This special arrangement of the bearing serves to reduce the vibrations that do not run along the ramming axis. This is necessary in order to achieve as single-axis a movement as possible of the excitation cell 20 along the ramming axis in the drawing yoke 10.
  • sliding guides 40 are available for the vibration movement of the excitation cell 20 in the direction of the ramming axis A, with two sliding guides 40 being firmly connected to the excitation cell 20 on each side surface of the excitation cell 20.
  • the sliding guides 40 are located on the center plane or ramming plane. Since the drawing yoke 10 is usually a steel construction and the sliding guides slide along this steel construction, a very hard and wear-resistant material must be selected for the sliding guides 40. For this reason, the sliding guides 40 are made of technical ceramic.
  • the sliding guides 40 are provided with a tribologically optimized geometry in order to reduce the contact surface between the sliding guide 40 and the drawing yoke 10 sliding along it to a minimum.
  • a surface contour of the sliding guide 40 is provided with the Figure 5b
  • the surface 41 represents the sliding partner of the guide, which runs along the Drawing yoke 10 slides.
  • Figure 5a shows a top view of the sliding guide 40 mounted on the excitation cell 20, while Figure 5b shows a sectional view through the sliding guide along the cutting axis BB.
  • the fixed mounting on the excitation cell 20 is carried out by means of screwing.
  • the core idea of the invention is to reduce the relative movements of the excitation cell 20 in the transverse direction to the ramming axis A by symmetrically attaching the elastomer bearings 30. This reduces transverse accelerations and transverse forces, which reduces the load on the sliding guide 40 and makes the energy saved available for the regular, vertical movement.
  • an optimized geometric shape 41 of the sliding guide 40 reduces the contact area between the bodies 10, 20 moving relative to one another, which reduces the friction that occurs and the energy dissipated as a result.
  • the sliding guides 40 are placed on the ramming plane.
  • wear is to be reduced by using technical ceramics for a sliding partner of the sliding guide 40. This significantly increases the service life of the sliding guides 40.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Soil Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Claims (8)

  1. Vibrateur vertical qui peut être fixé de manière déplaçable verticalement à une jumelle d'une machine de construction, comportant un étrier de traction (10) pour monter le vibrateur vertical sur la jumelle de la machine de construction et une cellule d'excitation (20) montée sur l'étrier de traction (10) pour générer les vibrations, dans lequel un agencement de composants de palier élastiques (30) symétrique par rapport à l'axe de l'enfoncement de pieux (A) de la cellule d'excitation (20) est prévu pour le montage à découplage vibratoire de la cellule d'excitation (20) sur l'étrier de traction (10) afin de réduire les mouvements relatifs de la cellule d'excitation (20) transversalement à l'axe de l'enfoncement de pieux (A), la cellule d'excitation (20) étant montée à ses extrémités inférieure et supérieure, vue dans la direction de l'enfoncement de pieux (A), par au moins un composant de palier (30) par rapport à l'étrier de traction (10),
    caractérisé
    en ce qu'au moins une glissière (40) est prévue pour le guidage coulissant de la cellule d'excitation (20) dans la direction de vibration ou de l'enfoncement de pieux (A), et en ce que la cellule d'excitation (20) présente une section transversale essentiellement rectangulaire et deux composants de palier élastiques (30) sont respectivement prévus sur la face avant et la face arrière de la zone supérieure et de la zone inférieure de la cellule d'excitation (20), qui forment les points de palier de la cellule d'excitation (20) à l'intérieur de l'étrier de traction (10).
  2. Vibrateur vertical selon la revendication 1, caractérisé en ce que les composants de palier élastiques (30) sont constitués par un élastomère ou comportent un élastomère.
  3. Vibrateur vertical selon l'une quelconque des revendications précédentes, caractérisé en ce que deux glissières (40) sont montées sur chaque surface latérale du vibrateur vertical, en particulier une glissière (40) chacune sur la zone supérieure et inférieure entre la cellule d'excitation (20) et l'étrier de traction (10).
  4. Vibrateur vertical selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une ou plusieurs, de préférence toutes les glissières (40) se trouvent sur le plan central de la masse en mouvement de la cellule d'excitation (20) ou sont agencées symétriquement par rapport au plan central.
  5. Vibrateur vertical selon l'une quelconque des revendications précédentes, caractérisé en ce que les une ou plusieurs glissières (40) possèdent une géométrie tribologiquement optimisée.
  6. Vibrateur vertical selon la revendication 5, caractérisé en ce que les une ou plusieurs glissières (40) comportent au moins une surface de contact convexe qui est en contact avec la partie guidée, c'est-à-dire avec l'étrier de traction (10) et/ou la cellule d'excitation (20).
  7. Vibrateur vertical selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins un partenaire de glissement de l'une ou plusieurs glissières (40) est constitué au moins partiellement de céramique technique ou en comprend.
  8. Machine de construction comportant un vibrateur vertical selon l'une quelconque des revendications précédentes.
EP16159103.7A 2015-03-10 2016-03-08 Vibreur vertical et machine de construction avec un vibreur vertical Active EP3067470B2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202015001862.9U DE202015001862U1 (de) 2015-03-10 2015-03-10 Rüttler als Anbaugerät für eine Baumaschine

Publications (3)

Publication Number Publication Date
EP3067470A1 EP3067470A1 (fr) 2016-09-14
EP3067470B1 EP3067470B1 (fr) 2020-12-09
EP3067470B2 true EP3067470B2 (fr) 2024-11-27

Family

ID=55532147

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16159103.7A Active EP3067470B2 (fr) 2015-03-10 2016-03-08 Vibreur vertical et machine de construction avec un vibreur vertical

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EP (1) EP3067470B2 (fr)
DE (1) DE202015001862U1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113323039A (zh) * 2021-06-15 2021-08-31 温州超泽天硕智能科技有限公司 一种自平衡桩基检测装置
KR20230002160A (ko) * 2022-12-09 2023-01-05 (주) 대동이엔지 정밀 수직시공 시스템을 가진 파일 드라이버
EP4675047A1 (fr) * 2024-07-03 2026-01-07 ABI Anlagentechnik-Baumaschinen-Industriebedarf Maschinenfabrik und Vertriebsgesellschaft mbH Générateur de vibrations pour sonnettes mécaniques vibrantes

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2527667A1 (fr) * 1982-05-27 1983-12-02 Procedes Tech Const Dispositif amovible de traction supplementaire pour appareil de foncage et/ou arrachage par vibration
DE8507086U1 (de) * 1985-03-12 1985-04-25 Krings International GmbH & Co KG, 5138 Heinsberg Vibrationsramme für den Grabenverbau
US7080958B1 (en) * 2005-04-27 2006-07-25 International Construction Equipment, Inc. Vibratory pile driver/extractor with two-stage vibration/tension load suppressor
US8342778B2 (en) * 2009-04-16 2013-01-01 Hercules Machinery Corporation Method and apparatus for facilitating the subterranean support of underground conduits having a fixed insertion axis
US8096733B2 (en) * 2009-07-10 2012-01-17 Hercules Machinery Corporation Apparatus for inserting sheet pile having an independently adjustable insertion axis and method for using the same
EP2444553B1 (fr) * 2010-10-20 2012-12-05 ABI Anlagentechnik-Baumaschinen-Industriebedarf Maschinenfabrik und Vertriebsgesellschaft mbH Dispositif de battage et de traction

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Vorbenutzung "Speedram 7500/1" †

Also Published As

Publication number Publication date
DE202015001862U1 (de) 2016-06-13
EP3067470A1 (fr) 2016-09-14
EP3067470B1 (fr) 2020-12-09

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