US3722380A - Vibrating roller earth compactor - Google Patents

Vibrating roller earth compactor Download PDF

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Publication number
US3722380A
US3722380A US00098329A US3722380DA US3722380A US 3722380 A US3722380 A US 3722380A US 00098329 A US00098329 A US 00098329A US 3722380D A US3722380D A US 3722380DA US 3722380 A US3722380 A US 3722380A
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roller
weights
weight
frequency
vibration
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B Kaltenegger
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    • 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
    • E01C19/282—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows self-propelled, e.g. with an own traction-unit
    • E01C19/283—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows self-propelled, e.g. with an own traction-unit pedestrian-controlled, e.g. with safety arrangements for operator

Definitions

  • the vibrators take the form of eccentrically mounted weights on shafts rotatable at different speeds along the axes of the respective rollers.
  • the eccentric weights and the rollers each have the same size and mass.
  • the slowerrotating eccentric weights have a greater mass than the more rapidly rotating weights.
  • the slower rotating heavier weights vibrate a roller of greater mass than the roller vibrated by the smaller mass faster rotating weight.
  • rollers are mounted on a rigid frame for rotation and the effect of vibrating the rollers with vibrators operating at different constant frequencies is to vibrationally impact the rollers against the ground in a band of frequencies to insure uniform compaction of the ground regardless of variations in consistency of the earth to be compacted.
  • SHEET 3 [1F 3 IN VEN TOR 5W KW VIBRATING ROLLER EARTH COMPACTOR
  • This invention relates generally to a roller type vibrating earth compactor and particularly to a road roller type compactor having at least two rolls which are disposed one behind the other in the direction of travel of the roller, are mounted on a rigid frame, and which are each vibrated by vibrating assemblies associated with the respective rollers.
  • the present invention relates to a roller type compacting machine having at least two rollers which are disposed one behind the other in the direction of travel of the machine, a rigid frame in which the rollers are mounted for rotation, at least two vibration producing assemblies, one associated with each of the rollers and effective to impart vibration to its associated roller, one of the vibration producing devices operating at a different frequency than the other vibration producing device.
  • rollers The varying frequencies of vibration of the rollers impacts the rollers on the ground so that all the particle sizes and consistencies of soil encountered by the rollers are effectively compacted to the same degree.
  • virtually any consistency or type of surface to be compacted is impacted by the rollers in a range of frequencies which includes the optimum frequency.
  • one and the same roller type vibrating compactor provides for optimum compaction of road surfaces and other applications where different consistencies of earth are encountered.
  • a distinct advantage of the vibrating roller of this invention is that the individual rollers are subjected to varying vibrational frequencies. Such varying vibrational frequencies occur irrespective of the phase relationship or chronological sequence of the vibrational impacts imparted to the rollers which in turn are transmitted to the ground via the rollers.
  • the vibration assembly for one of the rollers imparts vibration to the roller at a first frequency, for example, at a frequency of cycles per second and the vibration assembly for the other roller imparts a vibration at a lower frequency, for example, 30 cycles per second.
  • the apparent result is that one roller always impacts the ground at a constant higher vibrational frequency than the constant lower vibrational frequency of the other roller.
  • each roller is in fact vibrated at a primary frequency which is the frequency of vibration of the vibration assembly associated with the roller, and in addition, is vibrated at sweep frequencies in a band on each side of the primary frequency to provide the range of frequencies required to compact virtually any earth consistency encountered by the rollers.
  • each vibration assembly includes a rotatable shaft with eccentrically mounted or unbalanced weights thereon.
  • the impacts which the rollers exert on the earth occur in a predetermined sequence even when the unbalanced weights are offset relative to each other since the phase relationship of the vibrations changes as a result of the different frequencies.
  • the impacts shift chronologically during rotation of the weights. It has also been found that the effect of operating the eccentric weights at different frequencies is enhanced if the weights are arranged initially at an angle smaller than 180 relative to each other.
  • each roller is in fact vibrated at a primary frequency including a band of frequencies resulting from vibrating another roller on the same rigid frame at a different frequency and out of phase with the first frequency.
  • Another embodiment of the vibrating roller of this invention attains further improved efficiency by use of a heavier unbalanced or eccentric weight with one roller and a lighter unbalanced weight with the other roller.
  • the vibrating assembly operating at the lower frequency has an eccentric weight of greater mass than the vibrating assembly operating at the higher frequency.
  • the vibrating assembly with the heavier weight can be associated with a roller which is heavier than the other lighter roller vibrated by a lighter weight at a higher frequency.
  • FIG. 1 is a diagrammatic partial sectional view in side elevation showing one embodiment of earth compacting machine according to this invention
  • FIG. 2 is a partial view corresponding to FIG. 1 and showing a different embodiment
  • FIG. 3 is a view corresponding to FIG. 2 and showing another embodiment of the invention.
  • FIG. 4 is a view in section taken along line 44 of FIG. 3; and FIGS. 5-8 are diagrammatical views in side elevation showing the respective positions of the unbalanced weights relative to each other during a complete cycle of rotation of one of the weights, for a particular embodiment of the invention.
  • roller type earth compacting machine 1 has two rollers 2 and 3 mounted for rotation in a rigid frame 40, with the rollers arranged one behind the other in the direction of travel of the compacting machine.
  • Frame 40 includes rigid side plates 4 and 5 at opposite sides of the rollers (FIG. 4) and a rigid cover plate 6 extending between and secured to the side plates.
  • Both rollers 2 and 3 are mounted for rotation between the side plates 4 and 5 (FIG. 4).
  • the rotational mounting at side plate 5 includes a stub axle assembly 7, one secured to each of the rollers 2 and 3, and which stub axles are mounted for rotation respectively in bearings 8 supported by the side plate 5.
  • the mounting arrangement at side plate 4 includes a stub axle sleeve 7a, one for each of the rollers 2 and 3, and bearings 80 mounted in the side plate 4 and through which the stub axle sleeves extend.
  • roller type compacting machine is selfpropelled.
  • drive gear 9 (which is driven by a motor) meshes with idler gears 10 which drive the respective rollers in the same direction via the gears 11 keyed respectively to the stub axle sleeves 7a of the respective rollers.
  • a vibration assembly is associated with each roller for imparting vibration to the roller.
  • the vibration assemblies for the respective rollers 2 and 3 include the shafts 12 and 13 respectively, which are journalled for rotation at their inner ends on bearings 16 in the stub axle shafts 7, and are similarly journalled for rotation at their other ends on bearing 16 in the stub axle sleeves 7a.
  • the shafts 12 and 13 have projecting end portions 12a and 130, respectively, which project outwardly beyond the gears 9-11.
  • Weights are eccentrically mounted on shaft 12 so rotation of shaft 12 vibrates roller 2
  • weights 14 are eccentrically mounted on shaft 13 so rotation of shaft 13 vibrates roller 3.
  • Shafts 12 and 13 rotate about the same axes as the respective rollers 2 and 3.
  • a pulley assembly including pulleys 17 and 17a, and mounted on the end 13a of shaft 13 is a pulley 18.
  • the spur gears 9-11 are mounted in a first housing 19 closely adjacent to and connected to side plate 4.
  • a housing 20 extends over and encloses the space occupied by the pulleys 17, 17a and 18.
  • Housing 20 can be secured to housing 19 as shown at FIG. 4.
  • a tow bar 21 can be connected to coverplate 6 to facilitate transporting the roller compacting machine.
  • gear 9 is driven by motor 23 through a suitable transmission (not shown) including appropriate reduction gears to drive the rollers at the usual slow speed.
  • shafts 12 and 13 are driven by a power takeoff from motor 23, this drive including a drive pulley 24 driven by the motor and a belt 25 which extends around pulley 17a on shaft 12 and drive pulley 24.
  • shaft 13 is driven from shaft 12 by a belt 26 which extends around the respective pulleys 17 and 18 on shaft ends 12a and 13a respectively.
  • the diameter of pulley 18 is greater than the diameter of pulley l7 and correspondingly, shaft 13 and its weights 14 rotate at a slower speed than shaft 12 and its weights 15.
  • the diameter of pulley 18 is twice the diameter of pulley 17 so shaft 13 rotates at one-half the speed of shaft 12
  • the ratio of the diameters of pulley 17 to pulley 18 can be any desired ratio, for example, 1:3, 1:4 or 2:1, rather than the embodiment shown where the ratio is l :2.
  • the ratio of the diameter of pulley 17 to to pulley 18 is 2:1
  • the unbalanced weights 14 and 15 are each of the same mass and size and the rollers 2 and 3 are similarly of the same mass but one of the rollers can be of a larger diameter.
  • the amplitude of the vibrations produced by weights 14 and 15 when shafts 12 and 13 are driven is the same, but the frequencies of these vibrations are different.
  • weights 14 and 15 are displaced relative to each other, and such displacement provides an advantage which will subsequently be described in detail.
  • the vibrating roller type earth compacting machine 27 of FIG. 2' is essentially the same as the machine 1 of FIG. 1 save that the weights 14a of machine 27 are heavier than the weights 14 of machine 1. By the use of heavier weights 14a the amplitude of the vibration of shaft 13 is greater for the machine 27 than it is for the machine 1.
  • the rollers 2 and 3 have the same weight as in the embodiment of FIG. 1 and the pulleys 17 and 18 have the same speed ratio of 2:l.
  • weights 14a are heavier than weights 14
  • greater vibrational forces are exerted on roller 3 by shaft 12 and weights 14a than are exerted on the roller 3 by the weights 14 of the FIG. 1 embodiment.
  • weights 14a are also heavier than weights 15 of the machine 27 and the amplitude of the vibration on roller 3 is greater than the vibration on roller 2.
  • FIG. 3 shows another embodiment which represents a variation over the constructions of FIGS. 1 and 2.
  • the roller type earth compacting machine 28 of FIG. 3 includes the same weights l5 and714a as the embodiment of FIG. 2.
  • machine 27 is identical to machine 28 except that a heavier roller 3a is provided for machine 28.
  • roller 3a has a rim which is substantially thicker and correspondingly, heavier than the rim of the roller 3 of the embodiments of FIGS. 1 and 2. Otherwise, the construction of the machine 28is the same as the construction of the machine 27 of FIG. 2.
  • FIG. 3 shows another embodiment which represents a variation over the constructions of FIGS. 1 and 2.
  • the roller type earth compacting machine 28 of FIG. 3 includes the same weights l5 and714a as the embodiment of FIG. 2.
  • machine 27 is identical to machine 28 except that a heavier roller 3a is provided for machine 28.
  • roller 3a has a rim which is substantially thicker and correspondingly, heavier than the rim of the roller 3 of the embodiments of
  • the distribution of the vibrational frequencies between the rollers 2 and 3a differs from the distribution of the frequencies for the embodiments of FIGS. 1 and 2.
  • the ratio. of pulley 17 to pulley 18 is 2:1.
  • roller 3a has a mass twice the mass of roller 2
  • weights 14a has a mass which is twice the mass of weights 15, and weights 14a rotate at a speed which is one-half the speed of rotation of weights 15.
  • the ratio of the frequency of vibration of the vibration assemblies varies inversely with the respective unbalanced weights and roller weights.
  • pulleys l7 and 17a rotate in a clockwise direction and the shafts rotate in the same direction in the diagrammatic views of FIGS. 5-8, with reference to which the preferred rotational displacement of and operation of the weights will now be explained.
  • weights 15 which have the smaller mass, and weights 14a which have the. larger mass simultaneously occupy positions wherein the centers of gravity of these weights are directly above or on top of the respective axes of the shafts l2 and 13.
  • shaft 12 rotates at a speed which is twice the speed of rotation of shaft 13.
  • weights 14a have only rotated 90 so their center of gravity is directly to the right of the axis of shaft 13.
  • weights l5 and 140 are simultaneously up at least once during two complete revolutions of weight 15 is that simultaneous upwardly directed unweighting forces act on the frame 4a and rollers 2 and 3 and facilitate steering and turning the machine at the instant of such unweighting.
  • rollers 2 and 3 of the machine are driven by motor 23 to propel the machine.
  • motor 23 rotates shaft 12 and its associated weights 15, and
  • shafts l3 and its weights 14 are driven from shaft 12 at a speed which is half the speed of rotation of shaft 12.
  • the frequency of vibration of shaft 12 and weights I5 is twice the frequency of vibrationof shaft 13 and weights l4.
  • each shaft is driven at a substantially constant speed so the frequency of vibration of shaft 12 is constant and frequency of vibration of shaft 13 is constant.
  • the speed ratio of 2:1 remains constant because shaft 12 drives shaft 13.
  • roller 2 vibrates at varying frequencies in a recurring pattern from a frequency above the frequency of vibration of shaft 12 to a frequency below the frequency of vibration of shaft 12, and similarly, roller 3 vibrates at varying frequencies in a recurring pattern from a frequency above the frequency of vibration of shaft 13 to a frequency below the frequency of vibration of shaft 13. It is believed that some of the vibration from the shaft 13 is transmitted to roller 2 via the rigid frame 4a and some of the vibration from shaft 12 is transmitted to the roller 3 also via the rigid frame 4a.
  • each roller is vibrated at varying frequencies from above to below and again above a principle frequency in a recurring pattern, even though the vibration producing shaft and weights for each roller rotate at, and vibrate at a relatively constant frequency.
  • a roller type earth compactor comprising a. a rigid frame,
  • a first shaft and a first unbalanced weight mounted on said first shaft and rotatable about the axis of said first roller for producing vibration
  • first and second pulleys operatively connected to said first and second shafts respectively, said second pulley have a greater diameter than said first pulley
  • belt means connecting said motor means and pulleys
  • said first weight is driven at a first rate to generate a first frequency of vibration and said second weight is driven at a second rate slower than said first rate to generate a second frequency of vibration less than said first frequency of vibration, and said first and second rollers vibrate at varying frequencies in a reoccurring pattern from a frequency above to a frequency below said frequencies of vibration of said first and second rates respectively.
  • a roller type compactor according to claim 1 wherein the relative diameters of said first and second pulleys are such that said first and second weights rotate at rates relative to each other whereby said first weight vibrates at a frequency which is an integer multiple of the frequency of vibration of said second weight.
  • a roller type compactor according to claim 2 wherein the relative diameters of said first and second pulleys are such that said first and second weights are driven synchronously at different speeds with the rotational positions of said weights displaced relative to each other.
  • a roller type compactor wherein said first and second weights are rotated and positioned relative to each other such that both weights occupy a top vertical position simultaneously at least once during several complete revolutions of said first weight, whereby an upwardly directed force simultaneously acts on both said first and second rollers to provide an unweighting action facilitating steering movement of the compacting machine.
  • a roller type compactor wherein said weights initially occupy a top vertical position, and said driving means is adapted to rotate said first weight at a speed which is twice the speed at which said driving means rotates said second weight.
  • a roller type compactor according to claim 1 wherein said belt means comprises a belt extending between said pulleys and a further belt extending between said motor means and one of said pulleys.
  • a roller type compactor according to claim 1 further comprising transmission means operatively connecting said motor means to said first and second rollers to propel said earth compactor.
  • a roller type compactor according to claim 1 wherein said first and second weights and first and second rollers have the same masses respectively whereby said first and second rollers vibrate at the same amplitude.
  • a roller type earth compactor comprising a rigid frame
  • a first unbalanced weight rotatable about the axis of said first roller for producing vibration
  • said first and second rollers vibrate at different amplitudes and at varying frequencies in a reoccurring pattern from a frequency above to a frequency below said frequencies of vibration of said first and second rates respectively.
  • a roller type compactor wherein said driving means is adapted to rotate said first and second weights at rates relative to each other such that said first weight vibrates at a frequency which is an integer multiple of the frequency of vibration of said second weight.
  • a roller type compactor according to claim 10 wherein said driving means is adapted to drive said first and second weights synchronously at different speeds with the rotational positions of said weights displaced 90 relative to each other.
  • a roller type compactor according to claim 10 wherein said first and second weights are rotated and positioned relative to each other such that both weights occupy a top vertical position simultaneously at least once during several complete revolutions of said first weight, whereby an upwardly directed force simultaneously acts on both said first and second rollers to provide an unweighting action facilitating steering movement of the compacting machine.
  • a roller type compactor wherein said weights initially occupy a top vertical position, and said driving means is adapted to rotate said first weight at a speed which is twice the speed at which said driving means rotates said second weight.
  • a roller type compactor wherein said drive means comprises first and second shafts operatively connected to said first and second weights respectively, first and second pulleys operatively connected to said first and second shafts respectively, said second pulley having a greater diameter than said first pulley, motor means, and belt means connecting said motor means and pulleys.
  • a roller type compactor according to claim 9 wherein said belt means comprises a belt extending between said pulleys and a further belt extending between said motor means and one of said pulleys.
  • a roller type compactor according to claim 9 wherein said driving means is adapted to rotate said first and second rollers to propel said earth compactor.
  • a roller type compactor according to claim 9 wherein said second roller has a greater mass than said first roller whereby the ratio of the frequency of vibration of said unbalanced weights varies inversely with the respective masses of said unbalanced weights and rollers.
  • a roller type compactor wherein said driving means is adapted to rotate said first and second weights at rates relative to each other such that said first weight vibrates at a frequency which is an integer multiple of the frequency of vibration of said second weight.
  • a roller type compactor according to claim 18 wherein said driving means is adapted to drive said first and second weights synchronously at different speeds with the rotational positions of said weights displaced 90 relative to each other.
  • a roller type compactor according to claim 18 wherein said first and second weights are rotated and positioned relative to each other such that both weights occupy a top vertical position simultaneously at least once during several complete revolutions of said first weight, whereby an upwardly directed force simultaneously acts on both said first and second rollers to provide an unweighting action facilitating steering movement of the compacting machine.
  • a roller type compactor according to claim 20 wherein said weights initially occupy a top vertical position, and said driving means is adapted to rotate said first weight at a speed which is twice the speed at which said driving means rotates said second weight.
  • a roller type compactor according to claim 17 wherein said drive means comprises first and second shafts operatively connected to said first and second weights respectively, first and second pulleys operatively connected to said first and second shafts respectively, said second pulley having a greater diameter than said first pulley, motor means, and belt means connecting said motor means and pulleys.
  • a roller type earth compactor comprising a. a rigid frame,
  • a first shaft and a first unbalanced weight mounted on said first shaft and rotatable about the axis of said first roller for producing vibration
  • first and second pulleys operatively connected to said first and second shafts respectively, said second pulley having a greater diameter than said first pulley, motor means mounted on said frame, and
  • belt means connecting said motor means and pulleys
  • said first weight is driven at a first rate to generate a first frequency of vibration and said second weight is driven at a-second rate slower than said first rate to generate a second frequency of vibration less than said first frequency of vibration, and
  • said first and second rollers vibrate at different amplitudes and at varying frequencies in a reoccurring pattern from a frequency above to a frequency below said frequencies of vibration of said first and second rates respectively.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Road Repair (AREA)
US00098329A 1970-01-17 1970-12-15 Vibrating roller earth compactor Expired - Lifetime US3722380A (en)

Applications Claiming Priority (1)

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DE19702001988 DE2001988A1 (de) 1970-01-17 1970-01-17 Strassenwalze

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US3722380A true US3722380A (en) 1973-03-27

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US00098329A Expired - Lifetime US3722380A (en) 1970-01-17 1970-12-15 Vibrating roller earth compactor

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US (1) US3722380A (fr)
JP (1) JPS5231644B1 (fr)
AT (1) AT314585B (fr)
AU (1) AU2347370A (fr)
BE (1) BE761636A (fr)
BR (1) BR7100210D0 (fr)
CA (1) CA951162A (fr)
CH (1) CH525337A (fr)
DE (1) DE2001988A1 (fr)
DK (1) DK124764B (fr)
ES (1) ES387228A1 (fr)
FR (1) FR2077193B1 (fr)
GB (1) GB1334368A (fr)
NL (1) NL7100399A (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4499779A (en) * 1982-06-07 1985-02-19 M-B-W Inc. Vibratory compactor
US4993869A (en) * 1989-04-07 1991-02-19 Cmi Corporation Concrete finishing machine with vibrating finishing rollers
US5479728A (en) * 1994-03-08 1996-01-02 The Charles Machine Works, Inc. Apparatus for backfilling and tamping a trench
CN104141296A (zh) * 2013-05-07 2014-11-12 昆山瑞恒峰技术咨询有限公司 一种新型的双轮式平地夯实机
RU2647537C1 (ru) * 2016-12-27 2018-03-16 Федеральное государственное бюджетное образовательное учреждение высшего образования "Сибирская государственная автомобильно-дорожная академия (СибАДИ)" Вибрационный самоходный каток
WO2019103723A1 (fr) * 2017-11-21 2019-05-31 Volvo Construction Equipment Ab Commande de compactage d'un substrat par une machine de compactage de surface
WO2019103724A1 (fr) * 2017-11-21 2019-05-31 Volvo Construction Equipment Ab Machine de compactage de surface équipée de masses excentriques disposées de manière concentrique
US20190242074A1 (en) * 2018-01-05 2019-08-08 Vibco, Inc. Forward and reversible self-propelled vibratory pothole packer
US20210308976A1 (en) * 2020-04-07 2021-10-07 Deere & Company Oscillating silage compactor
US20210332548A1 (en) * 2020-04-22 2021-10-28 Hamm Ag Unbalance arrangement for a compactor roller of a soil compactor
EP3861170B1 (fr) * 2018-10-04 2022-10-26 BOMAG GmbH Procédé de commande d'une machine de compactage de sol et machine de compactage de sol

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS563848U (fr) * 1979-06-21 1981-01-14
GB2155871B (en) * 1984-03-20 1987-10-21 Stothert & Pitt Plc Vibrator/roller with disengageable drive arrangement

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3383992A (en) * 1965-06-26 1968-05-21 Kaltenegger Benno Self-propelled road roller
US3435741A (en) * 1966-12-09 1969-04-01 Bopparder Maschinenbau Gmbh Double vibration roller
US3580147A (en) * 1967-08-25 1971-05-25 Benno Kaltenegger Vibratory road roller
US3595145A (en) * 1968-09-11 1971-07-27 Bopparder Maschinenbau Gmbh Soil compacting machine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1235106A (fr) * 1958-09-12 1960-07-01 Bomag Bopparder Maschb Ges M B Engin mobile pour le cylindrage de revêtements de chaussées, empierrements de base, etc.
DE2001987A1 (de) * 1970-01-17 1971-07-29 Benno Kaltenegger Bodenverdichtungsgeraet

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3383992A (en) * 1965-06-26 1968-05-21 Kaltenegger Benno Self-propelled road roller
US3435741A (en) * 1966-12-09 1969-04-01 Bopparder Maschinenbau Gmbh Double vibration roller
US3580147A (en) * 1967-08-25 1971-05-25 Benno Kaltenegger Vibratory road roller
US3595145A (en) * 1968-09-11 1971-07-27 Bopparder Maschinenbau Gmbh Soil compacting machine

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4499779A (en) * 1982-06-07 1985-02-19 M-B-W Inc. Vibratory compactor
US4993869A (en) * 1989-04-07 1991-02-19 Cmi Corporation Concrete finishing machine with vibrating finishing rollers
US5479728A (en) * 1994-03-08 1996-01-02 The Charles Machine Works, Inc. Apparatus for backfilling and tamping a trench
CN104141296A (zh) * 2013-05-07 2014-11-12 昆山瑞恒峰技术咨询有限公司 一种新型的双轮式平地夯实机
RU2647537C1 (ru) * 2016-12-27 2018-03-16 Федеральное государственное бюджетное образовательное учреждение высшего образования "Сибирская государственная автомобильно-дорожная академия (СибАДИ)" Вибрационный самоходный каток
WO2019103724A1 (fr) * 2017-11-21 2019-05-31 Volvo Construction Equipment Ab Machine de compactage de surface équipée de masses excentriques disposées de manière concentrique
WO2019103723A1 (fr) * 2017-11-21 2019-05-31 Volvo Construction Equipment Ab Commande de compactage d'un substrat par une machine de compactage de surface
US11286625B2 (en) 2017-11-21 2022-03-29 Volvo Construction Equipment Ab Surface compactor machine having concentrically arranged eccentric masses
US20190242074A1 (en) * 2018-01-05 2019-08-08 Vibco, Inc. Forward and reversible self-propelled vibratory pothole packer
US10662591B2 (en) * 2018-01-05 2020-05-26 Vibco, Inc. Forward and reversible self-propelled vibratory pothole packer
EP3861170B1 (fr) * 2018-10-04 2022-10-26 BOMAG GmbH Procédé de commande d'une machine de compactage de sol et machine de compactage de sol
US20210308976A1 (en) * 2020-04-07 2021-10-07 Deere & Company Oscillating silage compactor
US11247426B2 (en) * 2020-04-07 2022-02-15 Deere & Company Oscillating silage compactor
US20210332548A1 (en) * 2020-04-22 2021-10-28 Hamm Ag Unbalance arrangement for a compactor roller of a soil compactor
US11781278B2 (en) * 2020-04-22 2023-10-10 Hamm Ag Unbalance arrangement for a compactor roller of a soil compactor

Also Published As

Publication number Publication date
GB1334368A (en) 1973-10-17
DE2001988A1 (de) 1971-07-22
BR7100210D0 (pt) 1973-06-05
FR2077193A1 (fr) 1971-10-22
ES387228A1 (es) 1974-07-16
CH525337A (de) 1972-07-15
DK124764B (da) 1972-11-20
FR2077193B1 (fr) 1973-10-19
AT314585B (de) 1974-04-10
BE761636A (fr) 1971-07-15
NL7100399A (fr) 1971-07-20
AU2347370A (en) 1972-06-22
CA951162A (en) 1974-07-16
JPS5231644B1 (fr) 1977-08-16

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