US3843275A - Vibratory compacting roller - Google Patents

Vibratory compacting roller Download PDF

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Publication number
US3843275A
US3843275A US00406783A US40678373A US3843275A US 3843275 A US3843275 A US 3843275A US 00406783 A US00406783 A US 00406783A US 40678373 A US40678373 A US 40678373A US 3843275 A US3843275 A US 3843275A
Authority
US
United States
Prior art keywords
roller
sleeve
shaft
mass
drive means
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.)
Expired - Lifetime
Application number
US00406783A
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English (en)
Inventor
P Piatkowski
M Birkholz
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.)
BWS Technologie GmbH
Original Assignee
Maschinenfabrik Buckau R Wolf AG
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
Priority claimed from DE19722251242 external-priority patent/DE2251242C3/de
Application filed by Maschinenfabrik Buckau R Wolf AG filed Critical Maschinenfabrik Buckau R Wolf AG
Application granted granted Critical
Publication of US3843275A publication Critical patent/US3843275A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Definitions

  • a shaft is rotatably mounted on a frame and carries an imbalanced mass, and a hollow roller coaxially surrounds the shaft and the mass with. clearance, having two opposite axial ends one of which is a free end.
  • a tubular support is mounted on the frame and a first sleeve is turnably journalled in the support and projects into the other end of the hollow roller and toward the free end thereof.
  • a second sleeve concentrically surrounds the first sleeve and is connected with the roller for rotation with the same, and also connected in motion-transmitting relationship with the first sleeve.
  • a first drive is connected with the first sleeve for rotating the same and the roller, and a second drive is connected with the shaft for rotating the same and thereby the imbalanced mass.
  • the present invention relates generally to a vibratory compactor, and more particularly to a vibratory compacting roller.
  • Vibratory compacting rollers are already known in the art. Generally speaking they use a drum-shaped roller which is provided in the interior with a coaxial shaft, and with an imbalanced mass which is driven by the shaft so as to impart vibrations to the roller. This type of roller is used for compacting of road beds or the like, and generally speaking the vibratory mass with its drive, and the drive which rotates the roller itself, are independent of one another in the prior art. Another criterion to be considered in the construction of these rollers is that one end of the roller should be free, that is should not be engaged by the frame on which the roller is mounted. The purpose of this is to make it possible for the roller to come as close as possible to curbs, to building walls or the like.
  • a further construction known from the prior art uses an imbalanced mass which is directly supported on an inner circumferential surface of the roller itself, and is driven electrically or hydraulically.
  • This construction also, is completely feasible but has the disadvantage that the roller itself is subjected to very strong vibrations and that the effective tangential forces tend to make the roller slip on the surface on which it rolls and on which it is to compact.
  • Another object of the invention is to provide such avibratory compacting roller wherein, although the vibration forces are directly transmitted to the roller body itself, no transmission of the vibration forces takes place to the journals for the roller body, to the drive for the roller body and to the drive for the imbalanced mass which produces the vibrations.
  • An additional object of the invention is to provide such an improved vibratory compacting roller which has one end free of any obstructions or encumbrances, so that it is possible to come close to curbs, walls or the like with this one end.
  • a vibratory compacting roller which comprises a frame and a shaft rotatably mounted on the frame and carrying an imbalanced mass.
  • a hollow roller coaxially surrounds the shaft and the mass with clearance, and has two opposite axial ends of which one is a free end.
  • a tubular support is mounted on the frame, and a first sleeve is turnably journalled in this support and projects from the region of the other of the ends towards the one end.
  • a second sleeve concentrically surrounds the first sleeve and is connected with the roller for rotation therewith..ln addition, the second sleeve is connected in motion-transmitting relationship with the first sleeve so that the second sleeve- --and thereby the roller-will turn when the first sleeve is rotated.
  • First drive means is connected with the first sleeve for rotating the same and thereby for rotating the roller, and second drive means is provided, being connected to the shaft for rotating the same and thereby the imbalanced mass.
  • the tubular support journalling the first sleeve extends from the aforementioned upper end into the roller itself and toward the one end thereof.
  • FIG. 1 is an axial section through a vibratory compacting roller according to one embodiment of the present invention
  • FIG. 2 is a fragmentary enlarged view, showing the detail which is located within the circle A of FIG. 1;
  • FIG. 3 is a further fragmentary enlarged view, show ing the detail located within the circle B of FIG. 1.
  • reference numeral 1 identifies an only partially illustrated frame which supports a hollow roller 2 for rotation.
  • the roller 2 is provided at its opposite axial ends with two end plates 3 and 4 which are connected in suitable manner (the details are known and immaterial for an understanding of the invention) with the roller 2 itself.
  • the end plates 3 and 4 carry vibration mounts 5 and 6, respectively, which are also known from the art.
  • an imbalanced mass 7 which is arranged coaxially with reference to the longitudinal axis of the roller 2 and is accommodated turnably in a housing 9, being journalled for rotation in the housing 9 by means of the illustrated bearings 11.
  • the housing 9 in turn is connected to the inner circumferential surface of the roller 2 via one or more supports 10. If several supports 10 are provided, then they should be equi-angularly distributed about the inner circumference of the roller 2 and the outer circumference of the housing 9.
  • a shaft 8 is provided which is driven in rotation by the somewhat diagrammatically illustrated drive 12 which in turn is mounted stationarily in the frame 1.
  • the drive 12 is coupled with the adjacent end of the shaft 8 by means of an elastic coupling 13, that is a coupling which can yield.
  • a similar coupling 14 is provided on that end of the shaft 8 (the right-hand one in FIG. 1) which is adjacent the imbalanced mass 7.
  • a drive ring 25 is mounted on the mass 7 itself and cooperates with a coupling 14 in the manner which is most clearly evident from FIG. 2 to transmit motion to the imbalanced mass 7 so as to rotate it on the shaft 8.
  • the purpose of providing the two elastic couplings is to prevent the transmission of vibrations to the drive 12.
  • a hollow sleeve 17 is mounted in the interior of the roller 2, intermediate the vibration mounts 5 and 6.
  • a further hollow sleeve 16 is connected to the hollow sleeve 17 by means of a mounting ring 26 (see FIG. 1) and extends outwardly past the roller 2 at the drive end of the same, that is in FIG. 1 at the left-hand end of the roller 2.
  • the end plate 4 is provided with an opening for which the sleeve 16 extends.
  • the drive 18 (see particularly FIG. 3) which rotates the roller 2 about the central longitudinal axis thereof.
  • the drive 18 utilizes a worm wheel 19 which is fixedly connected with the sleeve 16 for rotation with the same, and which is engaged by a worm gear 20 which in turn is driven in rotation by a non-illustrated hydraulic motor or the like.
  • the sleeve 16 is supported in a tubular support 21 which is rigidly connected with the frame 1 and in the illustrated embodiment extends coaxially into the interior of the roller 2.
  • the sleeve 16 and support 21 define with one another an annular clearance, and in this clearance there are located bearings 22 and 23 which journal the sleeve 16 within the support 21 for rotation relative to the latter.
  • the bearings 22 and 23 are so arranged that it is impossible for the roller 2 to slip axially off the support 21.
  • the bearings 22 and 23 are axially prestressed by an appropriate component, in the illustrated embodiment a dished spring 27 which engages them and prevents such undesired slipping off of the roller 2.
  • a vibratory compacting roller comprising a frame; a shaft rotatably mounted on said frame and carrying an imbalanced mass; a hollow roller coaxially surrounding said shaft and mass with clearance, said roller having two opposite axial ends of which one is a free end; a tubular support mounted on said frame; a first sleeve turnably journalled in said support and projecting from the region of the other of said ends towards said one end; a second sleeve concentrically surrounding said first sleeve, connected with said roller for rotation therewith, and connected in motion-transmitting relationship with said first sleeve; first drive means connected with said first sleeve for rotating the same and for thereby rotating said roller; and second drive means connected with said shaft for rotating the same and thereby said imbalanced mass.
  • said elastic means comprises elastic coupling elements, said shaft having one end provided with one of said elements which couples the shaft with said imbalanced mass, and another end provided with another of said elements which couples said shaft with said second drive means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
US00406783A 1972-10-19 1973-10-16 Vibratory compacting roller Expired - Lifetime US3843275A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722251242 DE2251242C3 (de) 1972-10-19 Rüttelwalze

Publications (1)

Publication Number Publication Date
US3843275A true US3843275A (en) 1974-10-22

Family

ID=5859480

Family Applications (1)

Application Number Title Priority Date Filing Date
US00406783A Expired - Lifetime US3843275A (en) 1972-10-19 1973-10-16 Vibratory compacting roller

Country Status (7)

Country Link
US (1) US3843275A (fr)
JP (1) JPS4993758A (fr)
AT (1) AT329619B (fr)
CH (1) CH564650A5 (fr)
DD (1) DD108131A5 (fr)
FR (1) FR2203913A1 (fr)
GB (1) GB1426775A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5716162A (en) * 1995-12-28 1998-02-10 Lord Corporation Dual-stage mounting system for vibratory compactor drum

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102653935B (zh) * 2012-05-03 2014-10-15 三一重工股份有限公司 振幅可调的振动装置和压路机

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5716162A (en) * 1995-12-28 1998-02-10 Lord Corporation Dual-stage mounting system for vibratory compactor drum

Also Published As

Publication number Publication date
FR2203913A1 (fr) 1974-05-17
DD108131A5 (fr) 1974-09-05
CH564650A5 (fr) 1975-07-31
ATA718373A (de) 1975-08-15
GB1426775A (en) 1976-03-03
AT329619B (de) 1976-05-25
DE2251242B2 (de) 1975-05-28
DE2251242A1 (de) 1973-11-08
JPS4993758A (fr) 1974-09-06

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