EP2050873A2 - Cylindre vibrant - Google Patents

Cylindre vibrant Download PDF

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Publication number
EP2050873A2
EP2050873A2 EP08012985A EP08012985A EP2050873A2 EP 2050873 A2 EP2050873 A2 EP 2050873A2 EP 08012985 A EP08012985 A EP 08012985A EP 08012985 A EP08012985 A EP 08012985A EP 2050873 A2 EP2050873 A2 EP 2050873A2
Authority
EP
European Patent Office
Prior art keywords
roller
vibratory
vibration exciter
vibratory roller
roller according
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.)
Withdrawn
Application number
EP08012985A
Other languages
German (de)
English (en)
Inventor
Hermann Greschner
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.)
Rammax Maschinenbau GmbH
Original Assignee
Rammax Maschinenbau 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
Application filed by Rammax Maschinenbau GmbH filed Critical Rammax Maschinenbau GmbH
Publication of EP2050873A2 publication Critical patent/EP2050873A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
    • E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
    • E01C19/28—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows
    • E01C19/286—Vibration or impact-imparting means; Arrangement, mounting or adjustment thereof; Construction or mounting of the rolling elements, transmission or drive thereto, e.g. to vibrator mounted inside the roll
    • 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
    • E02D3/026—Improving by compacting by rolling with rollers usable only for or specially adapted for soil compaction, e.g. sheepsfoot rollers
    • 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

Definitions

  • the invention relates to a vibratory roller with a vibration exciter having at least one imbalance shaft.
  • Such vibratory rollers are used, for example, in trench compactors, which are self-propelled or can be moved manually, in compactors or as add-on compactors for excavator arms. They are moved over to the soil to be compacted, while the vibration generator generates the necessary vibrations for the compression.
  • the vibrator In most known vibratory rollers, the vibrator is disposed inside the rollers. This has the disadvantage that when servicing the vibration exciter usually a time-consuming expansion of the vibration exciter from the roller is required. In addition, the unbalanced shafts are very hot, which can lead to problems with temperature-sensitive components, such as electronic components, especially in vibratory rollers, which also contain a drive unit for their own rotating drive in addition to the vibration exciter inside. The usually used for the drive hydraulic medium is also heated by an internal excitation unit and must be laboriously cooled.
  • the present invention has for its object to provide a vibrating roller to perform the maintenance work on the vibration exciter easily. It should also have a low height, in order to reduce the lateral tilting moment and to ensure a good gradeability.
  • the object is achieved with a vibrating roller with a vibration exciter, which has at least one imbalance shaft, which is characterized in that the vibration exciter is arranged above the vibrating roller.
  • the heat dissipation is much easier at above the roller arranged vibration exciters than integrated in the rollers vibration exciters.
  • the axis of the at least one imbalance shaft is oriented transversely to the axial direction of the vibrating roller.
  • the unit of vibration roller and vibration exciter can then be produced with a lower height than with parallel arrangement of the axes of vibration generator and roller. In addition to the lower height also a shift of the center of gravity of the unit is reached down, whereby the risk of lateral tilting of the vibratory roller can be reduced.
  • the vibration exciter can have two axially parallel, counter-rotating unbalanced shafts, so that directed vibrations can be generated with the vibration exciter.
  • the drive of the two imbalance shafts can be suitably coupled, whereby only one of the imbalance shafts must be actively driven.
  • the coupling of the imbalance shafts can via a transmission or otherwise respectively. It is also conceivable, of course, a separate, coordinated drive of the two unbalanced shafts.
  • the at least one imbalance shaft may be provided with a non-rotatably mounted eccentric weight and an eccentric weight which can be pivoted between two radially directed stops.
  • the amplitude of the vibrations generated can thus be selected larger or smaller.
  • the movable eccentric weight can enhance the effect of the fixed eccentric weight and reduce it in the other position.
  • the vibration frequency can be adjusted in a conventional manner to the soil conditions.
  • the direction of rotation of the at least one imbalance shaft can be reversible.
  • the amplitude of the vibrations generated by the vibration exciter can also be changed by simply switching the direction of rotation of the unbalanced shafts.
  • the invention also relates to manually moving vibratory rollers.
  • a drive unit preferably a hydraulic drive unit for the rotating drive of the roller may be provided in the vibratory roller.
  • Such vibratory rollers can be used for example in remote-controlled, self-propelled devices.
  • the drive direction of the drive unit can be reversible to allow compression in both directions even in cramped conditions in which often no room for turning the roller is present.
  • the vibration generator is arranged with its center of gravity in the running through the center of gravity of the vibrating roller cross-sectional plane of the vibrating roller.
  • the straight running of the roller is then best ensured.
  • Lie the centers of gravity of the vibration generator and the vibrating roller are too far apart, it can come to sideways movements of the roller especially for vibration generators that generate directional vibrations.
  • the variety of applications of the vibratory roller can be significantly increased if the vibration exciter is mounted limited movable above the vibrating roller, such that its center of gravity is displaced before and / or behind the running through the axis of the vibrating roller vertical plane.
  • the oscillation amplitude can be reduced by displacing the center of gravity of the vibration exciter in front of or behind the axis.
  • the vibration exciter is mounted limitedly pivotable about the axis of the vibratory roller, the pivoting movement of the center of gravity of the vibrator, for example, slightly shifted behind the axis and at the same time the vibration exciter be inclined, whereby the propulsion movement of the vibratory roller and thereby the climbing ability is greatly improved.
  • the vibratory roller can then be used for compacting sloping terrain or very difficult ground.
  • the invention also relates to a compactor or vehicle having at least one vibratory roller according to the invention.
  • Fig. 1 shows a vibratory roller 10 having a vibration exciter 11 which is disposed above the vibrating roller 10.
  • the vibration exciter 11 has two unbalanced shafts 12, 13 arranged in separate housings, the unbalanced shaft 13 being driven by a motor 14.
  • the drive for the unbalanced shaft 13 in opposite directions drive the imbalance shaft 12 is effected by a arranged on the end faces of the unbalanced shafts 12, 13 gear 15.
  • the axial direction 16 of the imbalance shafts 12, 13 extends transversely to the axial direction 17 of the vibratory roller.
  • the vibration exciter 11 is also arranged so that its center of gravity is above the center of gravity of the vibrating roller 10, so that the vibrations generated by it do not affect the straight running of the vibrating roller 10.
  • the amplitude and frequency of the vibrations generated by the vibration exciter 11 may be variable.
  • the imbalance shafts 12, 13 in a known per se and not shown here manner each having a rotatably mounted eccentric weight and an adjustable eccentric weight.
  • the adjustable eccentric weight can be pivoted between two stops, whereby in one position the effect of the fixed eccentric weight is increased and in the other direction the effect of the fixed eccentric weight is reduced.
  • the vibrating roller 10 has in its interior a drive unit 18, which may preferably be a hydraulic motor.
  • a drive unit 18 which may preferably be a hydraulic motor.
  • terminals 19 are provided in a central region of the vibrating roller, to which hydraulic lines from a vehicle or device to which the vibrating roller 10 is attachable, can be connected.
  • Fig. 2 illustrates in the front view of the vibratory roller 10 and the vibration exciter 11 that the vibrating roller 10 is provided with two bandages 20, 21, which have a different width.
  • the hydraulic connections 19 for the drive unit 18 are arranged in the interior of the vibrating roller 10.
  • the bandages 20, 21 are removable.
  • the profiled bandages 20, 21 shown here can also be exchanged for smooth bandages, as required, for example, for sandy soils.
  • the vibration exciter 11 may also be limitedly pivotable about the axis 17 of the vibratory roller 10 or arranged to be displaceable on the vibrating roller 10 in the axial direction 16 of the unbalanced shafts 12, 13. By a horizontal displacement of the vibrator 11 from the center position, the amplitude of the vibration exerted by the vibrating roller 10 to the soil vibrations can be reduced. Upon pivoting the vibration exciter 11 out of the central position, the vibration generated by the vibration exciter receives a component which supports the propulsion of the vibration roller 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Soil Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Agronomy & Crop Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Road Paving Machines (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
EP08012985A 2007-10-18 2008-07-18 Cylindre vibrant Withdrawn EP2050873A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007049889A DE102007049889A1 (de) 2007-10-18 2007-10-18 Vibrationswalze

Publications (1)

Publication Number Publication Date
EP2050873A2 true EP2050873A2 (fr) 2009-04-22

Family

ID=40383537

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08012985A Withdrawn EP2050873A2 (fr) 2007-10-18 2008-07-18 Cylindre vibrant

Country Status (3)

Country Link
US (1) US20090103980A1 (fr)
EP (1) EP2050873A2 (fr)
DE (1) DE102007049889A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10072386B1 (en) * 2017-05-11 2018-09-11 Caterpillar Paving Products Inc. Vibration system

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2410465A (en) * 1940-08-02 1946-11-05 J D Adams Mfg Company Tamping roller
NL102228C (fr) * 1957-11-23
US3176597A (en) * 1960-10-27 1965-04-06 Harry J Seaman Vibratory compactor
FR1555359A (fr) * 1967-03-10 1969-01-24
US3670631A (en) * 1970-12-28 1972-06-20 Clark Equipment Co Rotating vibrator
US3736066A (en) * 1971-03-15 1973-05-29 Pettibone Corp Vibratory earth compacting apparatus
US3822957A (en) * 1971-09-09 1974-07-09 Caron Compactor Co Earth compaction pads
ZA73627B (en) * 1972-02-04 1973-10-31 Marshall Fowler Ltd Vibrating roller
US3909147A (en) * 1974-11-07 1975-09-30 Raygo Inc Variable amplitude vibration generator
SE7705001L (sv) * 1977-04-29 1978-10-30 Dynapac Maskin Ab Vibrationsanordning
US4262549A (en) * 1978-05-10 1981-04-21 Schwellenbach Donald D Variable mechanical vibrator
US4176983A (en) * 1978-07-17 1979-12-04 Ingersoll-Rand Company Variable eccentric device
AU570233B2 (en) * 1983-02-18 1988-03-10 Bowater Tutt Industries Pty. Ltd. Vibratory mechanism
US4732507A (en) * 1987-03-03 1988-03-22 M-B-W, Inc. Walk behind soil compactor having a double vibratory drum and an articulated frame
GB2226616A (en) * 1988-06-24 1990-07-04 Mbw Inc Improved vibratory mechanism for a compaction roller
DE3906392A1 (de) * 1989-03-01 1990-09-20 Bomag Gmbh Ruettelwalze zur bodenverdichtung
US4913581A (en) * 1989-06-26 1990-04-03 Vermeer Manufacturing Co. Narrow trench tamper
US5526590A (en) * 1994-09-12 1996-06-18 Palm Sales, Inc. Trench compactor
US5511901A (en) * 1994-10-25 1996-04-30 Ingersoll-Rand Company Removable padfoot shell conversion device
US6390204B1 (en) * 1999-12-03 2002-05-21 Diamond Wheel & Fabricating, Inc. Compaction wheel for landfill compactors
US7059802B1 (en) * 2000-11-15 2006-06-13 Wacker Corporation Vibratory compactor and compact exciter assembly usable therewith
US6837648B1 (en) * 2004-05-27 2005-01-04 Theodore S. Wadensten Portable roller-type compactor apparatus having a combined means for the vibrating and the reversible propelling thereof
US7481144B2 (en) * 2005-11-18 2009-01-27 Gs Engineering, Inc. Vibratory countermine system and method
US7410323B1 (en) * 2007-04-27 2008-08-12 Roth Scott R Method and apparatus for compaction, breaking and rubblization

Also Published As

Publication number Publication date
DE102007049889A1 (de) 2009-04-30
US20090103980A1 (en) 2009-04-23

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