US3595145A - Soil compacting machine - Google Patents

Soil compacting machine Download PDF

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Publication number
US3595145A
US3595145A US853173A US3595145DA US3595145A US 3595145 A US3595145 A US 3595145A US 853173 A US853173 A US 853173A US 3595145D A US3595145D A US 3595145DA US 3595145 A US3595145 A US 3595145A
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United States
Prior art keywords
generators
machine
rollers
discs
mounting
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Expired - Lifetime
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US853173A
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English (en)
Inventor
Joachim Mozdzanowski
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Bopparder Maschinenbau GmbH
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Bopparder Maschinenbau GmbH
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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

Definitions

  • oachcm MozozANowsm ATTORNEY SOIL COMPACTING MACHINE can take theform of a towed roller and there may be only one generator.
  • the unbalancedcentrifugalforce generators are mounted on shafts and it is the usual practice to arrange these shaftsso Athat they extend'across the frame of the vehicle, that is'to say perpendicular to the direction of travel.
  • Each generator is usually as long'asrthe-rollers ofthe machine, that isto-say the generator extends rightacross thewidth vof the machine. This makesit necessary to use long shafts for the generators, with the result that the shafts flex considerably.
  • the diameters of the generator shafts are limited by the. amountof space availa ble.
  • the generator shafts are usually drivenfrom one sidefof the vehicle, and thiscauses difficulties.
  • a vibratory compactor for yroad surfaces is known inwhich two shafts are mounted on the machine frame,abovethe rollers. These shafts extend' in the direction of travel and are driven in opposite senses. 0n the shas are mounted un-y balanced centrifugal force generators which can be shifted in position along the shafts, so as to vary the oscillation amplitude.
  • a single ⁇ roller compactor is disclosed in U.S. Pat.No. 3,176,597 in which a vibrator is mounted over the roller and this .vibrator has ⁇ generators whose shafts extend in the direction of travel of the machine.
  • this machine is entirely different in kind from the machine with which the present invention is concerned because it gives. only a vertical translatory movementwhereas a double vibratory rollerl provides a rotary oscillation.
  • bearings also have to be correspondingly large. This is not onlyA costly but also involves a high rate of production of heat, because of course a large bearing produces heat more rapidly than a small one.
  • Thel object of the ypresent invention is to ⁇ arrange the unbalanced centrifugal force generators of a soil compacting machine in such a way that thecost of construction is reduced and in such a way that it becomes possible to position the generators at the bestlocations in the machine for producing the desired rotary oscillation, that is to say ⁇ for giving the machine the desired rocking movement.
  • the generators in a l soil compacting machine comprising at least two rollers arranged in tandem and mounted in a frame, and at last one out of balance centrifugal force generator is mounted ⁇ in the frame.
  • - lf therel areA two out .of balance centrifugal forced generators provided, one is mounted in front of and one behind the rollers on short shafts extending in the directionof travel of the machine.
  • The-shafts of the generators are much shorter than the rollers or much shorter than the width of the frame of the machine.
  • the generators may be mounted in housings in the form of transverse members which rigidly tie together longitudinal side members of the frame.
  • Each transverse beam may contain several generators, the drives of which need not be located in or on side members of the frame.
  • the generators may be driven and if necessary synchronized by means of gear wheels.
  • Each generator may for example take the form of a toothed disc the teeth of Awhich engage with those of a neighboring disc.
  • the drive for the generators is by means of a toothed belt which has teeth on both sides.
  • the belt extends around a driving disc, around four toothed generator discs and around an idler roller, in such a way that pairs of generator discs rotate in opposite directions.
  • the same principle can be applied to more than four generator discs. lf desired the generators can be driven through Carden shafts.
  • the engine which drives the generators and also serves for propulsion of the machine is preferably spring mounted on the frame of the machine substantially centrally.
  • the drive may be mechanical, or if desired hydraulic.
  • FIG. l is a side view of the machine
  • FlG. 2 is a plan view
  • FIGS. 3 to 6 are end views of the machine and of the machine modified by the substitution of different centrifugal force generators.
  • the machine has four rollers l, 3 and 2, 4, rotatably mounted on axles 5 and 6, the ends of which are fixed in side members 7, 8 of a frame of the machine.
  • Gear wheels 25 for driving the rollers l, 2, 3, 4 are mounted on axles which rotate in bearings in the members 7, 8.
  • a source of power in this example a Diesel engine 13 is spring mounted above the rollers on a supporting frame 1S, there being disposed coiled springs 14, or other springing devices, between the supporting frame 15 and the frame of the machine.
  • the driving engine 13 drives a hydraulic pump 16 on a flange of which a controller 17 is mounted.
  • the driving engine 13, the hydraulic pump land the controller 17 form a single structural unit.
  • the engine 13 drives hydraulic pumps 50 and 51, the hydraulic fluid passing through pipes 54 and S to drive hydraulic motors 52 and 53.
  • pipes 18 convey hydraulic fluid to hydraulic motors 19 and 20, one at each end of the frame.
  • the two hydraulic motors 19 and 20 dn've gear wheels 29, 30 which rotate in bearings in two transverse frame members 9 and l0, at the front and rear ends of the machine.
  • the two transverse members 9 and 10 form housings which contain, as shown for example in FlG. 3, unbalanced centrifugal force generators 31, 33, 35, 37 and 32, 34, 36, 38 in the form of unbalanced discs on short shafts 1l, 12 extending longitudinally in the machine, that is to say in the direction of travel.
  • Each disc has peripheral teeth engaging with those of a neighboring disc.
  • the drive from the gear wheels 29 and 30 mounted on the shafis of the hydraulic motors 19, 20 is transmitted from toothed wheels 39, 40 to the generator discs 33, 34 by toothed belts 56.
  • the machine can be equipped with a single generator disc, to give a circular oscillation.
  • the generator discs are arranged in oppositely rotating pairs to give a directional oscillation.
  • connecting shafts 22, 23 with flexible joints connected together by a middle shaft 24.
  • the generators are driven and synchronized by a toothed belt 4l, which has teeth on both sides. ln this case the generators 42 to 45 do not engage directly with each other.
  • Each generator disc has peripheral teeth which engage with the teeth of the belt 41.
  • the belt 4l is trained around the discs in such a way that the discs 42 and 43, and the discs 44 and 45 (not shown) are driven as oppositcly rotating pairs, ln FIG. 4 for example, the belt is taken anticlockwise around the disc 42, and clockwise around the disc 43.
  • toothed belt 4l is taken clockwise around the disc 44 and anticlockwise around the disc 45.
  • the drawing shows a toothed wheel on the shaft of the hydraulic motor at 30a, and an idler roller at 46.
  • the machine in accordance with the invention is in the form of a double vibration roller, that is to say a doubleroller rocking-action compactor
  • arranging the generators in the manner in accordance with the present invention has the particularly advantage that the longitudinal chasses members do not have to take the longitudinal stresses applied by generators which are positioned at the two ends of the machine and are 180 out of phase, in passing through their extreme outer and extreme inner angular positions.
  • a special advantage obtained by mounting the generators with their axes extending fore-and-aft, is that the generator axles can be mounted to rotate in bearings in the cross members of the vehicle, or in housings arranged transversely in the vehicle, so that the system of generators can easily be removed from the vehicle for maintenance purposes. This advantage is obtained irrespective of whether the generator discs drive each other directly by their teeth, or are driven individually by a toothed belt.
  • the generator discs mounted on short shafts extending longitudinally in the vehicle also provides the particular advantage that the generators can if desired rotate at different speeds, or rotate without synchronization.
  • the forward generator can give an oscillation frequency of 30 Hz., the rear gehemmt giving an oscillation at 47 Hz.
  • a vertical rocking motion results with a frequency of l7 Hz. which is approximately the resonant frequency of the soil.
  • the vertical rocking movement can be made to agree with the resonant frequency of the particular soil, giving a particularly favorable compacting effect. ln this way the machine can be adjusted for each particular type of soil.
  • any desired pairs of generators can be selectively installed at the front and rear ends of the machine.
  • the generators can be driven to rotate at any desired speeds, for example by using gear wheels of different diameters, to suit different operating conditions. Locat ing the power source in the middle of the vehicle minimizes the width of the vehicle. Locating the generators near the ends of the machine provides the greatest possible vibratory rocking torque.
  • a soil compacting machine including a frame, at least two soil compacting rollers, means mounting said rollers in tandem in said frame, at least two out of balance centrifugal force generators and means mounting said generators in said frame, the improvement wherein said generator mounting means includes first means mounting at least one of said generators in front of said rollers and second means mounting at least one other of said generators behind said rollers both said first means and said second means including a relatively short shaft extending in the direction of travel of said machine.
  • said means mounting said rollers in said frame includes horizontal axle means and further comprising bearing means mounting said shafts of said first and said second means at substantially the same height as said axle means.
  • said frame includes longitudinal side members and transverse members interconnecting said longitudinal side members in front of and behind said rollers, said transverse members including portions defining housings and said generator mounting means mounting said generators in said housings.
  • said frame includes longitudinal side members disposed one at each end of said rollers and further comprising engine means and drive means operatively connecting said generators to said engine, said drive means being located above said rollers and between vertical planes containing said longitudinal side members.
  • each of said generators includes a pair of unbalanced discs, means rotatably mounting said discs and means for rotating said discs in opposite directions to each other.
  • a machine as claimed in claim S further comprising peripheral teeth on said discs and toothed belt means meshing with said teeth on said discs of each of said pairs.
  • a machine as claimed in claim 7, further comprising teeth on both sides of said belt, an idler roller, and means extending said belt around said idler roller, around one of said discs in said pair in a clockwise direction and around the other of said discs in said pair in an anticlockwise direction.
  • a machine as claimed in claim including engine means for driving said generators, means mounting said engine means on said frame, ahydraulic pump, means operatively coupling said pump to said engine means, at least two hydraulic motors, means operatively connecting said pump to said motors and means operatively connecting each of said motors to one of said generators.
  • a machine as claimed in claim l further comprising means for operating said generator in front of said rollers to produce a first oscillation frequency and means for driving tion frequency different from said first oscillation frequency.
  • a machine as claimed in claim l. comprising at least two pairs of said generators, and means detachabl y mounting each of said pairs of generators on said frame.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
US853173A 1968-09-11 1969-08-26 Soil compacting machine Expired - Lifetime US3595145A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT885068A AT294170B (de) 1968-09-11 1968-09-11 Bodenverdichtungsgerät

Publications (1)

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US3595145A true US3595145A (en) 1971-07-27

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US853173A Expired - Lifetime US3595145A (en) 1968-09-11 1969-08-26 Soil compacting machine

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US (1) US3595145A (en:Method)
JP (1) JPS4838162B1 (en:Method)
AT (1) AT294170B (en:Method)
BE (1) BE738546A (en:Method)
CA (1) CA924558A (en:Method)
CH (1) CH501777A (en:Method)
DE (1) DE1944154A1 (en:Method)
FR (1) FR2017768A1 (en:Method)
GB (1) GB1220670A (en:Method)
NL (1) NL6913091A (en:Method)
NO (1) NO128670B (en:Method)
YU (1) YU32204B (en:Method)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3722380A (en) * 1970-01-17 1973-03-27 B Kaltenegger Vibrating roller earth compactor
US3736066A (en) * 1971-03-15 1973-05-29 Pettibone Corp Vibratory earth compacting apparatus
US3871788A (en) * 1972-02-04 1975-03-18 Marshall Fowler Ltd Vibrating roller
US4927289A (en) * 1988-06-24 1990-05-22 M-B-W Inc. Vibratory mechanism for a compaction roller
US5046891A (en) * 1989-03-01 1991-09-10 Bomag Gmbh Vibrator roller for soil compaction
US5479728A (en) * 1994-03-08 1996-01-02 The Charles Machine Works, Inc. Apparatus for backfilling and tamping a trench
WO2002099199A1 (en) * 2001-06-06 2002-12-12 Ingersoll-Rand Company Apparatus and method for controlling eccentric assemblies
US20080292401A1 (en) * 2007-05-23 2008-11-27 Caterpillar Inc. Heated drum compactor machine and method
US8714869B1 (en) 2012-12-04 2014-05-06 Caterpillar Paving Products Inc. Compactor having electronically controlled heating element
US20210308976A1 (en) * 2020-04-07 2021-10-07 Deere & Company Oscillating silage compactor

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2466822A (en) * 1945-06-23 1949-04-12 Iowa Mfg Company Earth compactor
US2728277A (en) * 1952-12-18 1955-12-27 John L Mcrae Soil compaction machine
US3000278A (en) * 1957-11-23 1961-09-19 Bomag Bopparder Maschb Ges M B Movable device for rolling road surfaces and the like
US3048089A (en) * 1958-09-12 1962-08-07 Bomag Bopparder Machinenbau Ge Land roller for rolling road surfaces and the like
US3082668A (en) * 1959-11-20 1963-03-26 Vibrator Mfg Company Surface-treating machine
US3415174A (en) * 1965-06-26 1968-12-10 Kaltenegger Benno Tandem-type road roller
US3435741A (en) * 1966-12-09 1969-04-01 Bopparder Maschinenbau Gmbh Double vibration roller

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2466822A (en) * 1945-06-23 1949-04-12 Iowa Mfg Company Earth compactor
US2728277A (en) * 1952-12-18 1955-12-27 John L Mcrae Soil compaction machine
US3000278A (en) * 1957-11-23 1961-09-19 Bomag Bopparder Maschb Ges M B Movable device for rolling road surfaces and the like
US3048089A (en) * 1958-09-12 1962-08-07 Bomag Bopparder Machinenbau Ge Land roller for rolling road surfaces and the like
US3082668A (en) * 1959-11-20 1963-03-26 Vibrator Mfg Company Surface-treating machine
US3415174A (en) * 1965-06-26 1968-12-10 Kaltenegger Benno Tandem-type road roller
US3435741A (en) * 1966-12-09 1969-04-01 Bopparder Maschinenbau Gmbh Double vibration roller

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3722380A (en) * 1970-01-17 1973-03-27 B Kaltenegger Vibrating roller earth compactor
US3736066A (en) * 1971-03-15 1973-05-29 Pettibone Corp Vibratory earth compacting apparatus
US3871788A (en) * 1972-02-04 1975-03-18 Marshall Fowler Ltd Vibrating roller
US4927289A (en) * 1988-06-24 1990-05-22 M-B-W Inc. Vibratory mechanism for a compaction roller
US5046891A (en) * 1989-03-01 1991-09-10 Bomag Gmbh Vibrator roller for soil compaction
US5479728A (en) * 1994-03-08 1996-01-02 The Charles Machine Works, Inc. Apparatus for backfilling and tamping a trench
WO2002099199A1 (en) * 2001-06-06 2002-12-12 Ingersoll-Rand Company Apparatus and method for controlling eccentric assemblies
US20080292401A1 (en) * 2007-05-23 2008-11-27 Caterpillar Inc. Heated drum compactor machine and method
US8714869B1 (en) 2012-12-04 2014-05-06 Caterpillar Paving Products Inc. Compactor having electronically controlled heating element
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

Also Published As

Publication number Publication date
NO128670B (en:Method) 1973-12-27
YU230669A (en) 1973-12-31
GB1220670A (en) 1971-01-27
YU32204B (en) 1974-06-30
AT294170B (de) 1971-11-10
CH501777A (de) 1971-01-15
DE1944154A1 (de) 1970-03-19
BE738546A (en:Method) 1970-02-16
CA924558A (en) 1973-04-17
NL6913091A (en:Method) 1970-03-13
JPS4838162B1 (en:Method) 1973-11-15
FR2017768A1 (en:Method) 1970-05-22

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