US3656419A - Vibratory roller - Google Patents
Vibratory roller Download PDFInfo
- Publication number
- US3656419A US3656419A US811811A US3656419DA US3656419A US 3656419 A US3656419 A US 3656419A US 811811 A US811811 A US 811811A US 3656419D A US3656419D A US 3656419DA US 3656419 A US3656419 A US 3656419A
- Authority
- US
- United States
- Prior art keywords
- chamber
- shaft
- reservoir
- conduit means
- drum
- 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
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Images
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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/18—Mechanical movements
- Y10T74/18544—Rotary to gyratory
- Y10T74/18552—Unbalanced weight
Definitions
- the shaft car- I ries a hollow chamber which is offset eccentrically from the [56] References and axis thereof and which extends substantially the entire length UNITED STATES PATENTS v of the shafL Means are provided for admitting liquid to and discharging it from the chamber so that the amplitude of 2,248,478 7/1941 Mall vibration of the shaft might be varied at any selected speed of 2,67 l Kerr1dge;
- Vibratory rollers are commonly used today for the compaction of soil, asphalt and other ground surface materials.
- the roller vibration is generally created by providing an eccentric weight or weights on a power driven rotary shaft extending axially through the roller drum. Varying dynamic forces are obtained by varying the speed of rotation of the shaft and weights. These forces are varied to change the amplitude of movement, or the vertical distance of movement, of the roller drum relative to the ground surface.
- roller vibration In certain situations, such as compaction of a mat of asphalt road surface, it is desirable that roller vibration have a high frequency but at a low amplitude and in other situations it may be desirable to have a low frequency of vibration at a relatively high amplitude.
- the invention broadly comprises providing the roller drum shaft with an offset hollow chamber and a system for varying the amount of liquid in said chamber whereby the amplitude of drum vibration created by the shaft rotation can be varied atany given speed of rotation.
- FIG. 1 is a perspective side view of a self-propelled vibratory roller embodying the invention.
- FIG. 2 is an enlarged vertical section through the roller drum taken on line 2-2 of FIG. 1 with certain components of the vibratory mechanism shown diagrammatically.
- FIGS. 3 and 4 are similar partial cross sectional views through the lower portion of the drum to demonstrate the relationship between the amount of liquid in the eccentric chamber and the amplitude of movement of the drum.
- a self-propelled vibratory compactor or roller is denoted generally by the numeral 10. It includes a roller unit 11 and a propulsion unit 12.
- the propulsion unit comprises a body 14 supported upon drive wheels 15 which are powered by an engine enclosed in housing 16.
- a steering wheel 17 for operating mechanism to relatively adjust units 11 and 12 about a connecting vertical pivot axis is controlled from the operator's station 18 as are various hydraulic controls 19 and 20.
- the roller unit 11 comprises a frame 21 connected to unit 12 at the aforementioned pivot axis.
- the side bars of the frame support coaxial bearings 22 (FIG. 2) which jointly journal the end portions 24 of a cross shaft denoted generally at 25.
- a cylindrical roller or drum 26 has a pair of parallel circular end walls 27 which are interconnected by an annular ground engaging wall 28. Walls 27 have coaxial bearings 29 which are journaled respectively on portions 30 of shaft 25 which are located just within the end portions 24. It will accordingly be understood that shaft 25 is journaled for rotation in frame 21 and drum 26 is journaled for rotation on the shaft 25.
- the shaft 25 and drum 26 may accordingly rotate at different speeds on a common axis.
- the shaft in fact serves as an axle for the drum as the drum is moved over the ground surface.
- a fluid motor 34 is suitably mounted on frame 21 and has a driving connection with one end of shaft 25. Hydraulic fluid is circulated between a reservoir (not shown) on body 14 and the motor 34 through lines 35 and 36.
- the shaft 25 is provided with an axial passageway 37.
- the end of this passageway is internally threaded for connection with a rotating coupling 38.
- Shaft 25 is provided with an elongated cylindrical chamber 39 extending substantially the entire length of the shaft. The chamber is offset to one side of the shaft axis so as to be in an eccentric position.
- a tube 40 extends from the coupling 38 inwardly through passageway 37.
- a sea] 41 is provided at the end of tube 40 between the tube and the wall of passageway 37.
- Radial passageways 44 and 45 respectively connect passageway 37 with chamber 39 on opposite sides of seal 41.
- a liquid transfer chamber 46 is mounted at some point on the body 14 and is connected by liquid line 47 with the coupling 38. Within the coupling 38 line 47 has open communication with passageway 37 but not the interior of tube 40. Accordingly, liquid may pass from chamber 46, through line 47, the coupling 38 and passageways 37 and 45 into chamber 39.
- a supply tank 50 of air under pressure is also mounted on body 14.
- Line 51 connects tank 50 with chamber 46 and has a shut-off valve 52 therein.
- a line 54 extends from tank 50 to coupling 38 and connects through the coupling with the interior of tube 40.
- a controllable shut-off valve 55 is disposed in line 54. Accordingly, when valve 52 is open and valve 55 is closed air pressure will flow into chamber 46 forcing the liquid therein out through line 47 and into the chamber 39. On the other hand, when valve 52 is closed and valve 55 is open the air pressure will flow through line 54, tube 40 and passageway 44 forcing the liquid in chamber 39 back through passageways 45 and 37 and line 47 to chamber 46.
- Chamber 46 is provided with a valve 43 which is normally closed but which is opened to vent the chamber interior to the atmosphere when the system is operated to return liquid to the chamber.
- line 54 is provided with a bleed valve 53 which is normally closed but which is opened to allow air to escape from line 54 when the system is operated to move liquid from chamber 46 to chamber 39.
- Suitable means are provided for operating valves 52, 53, 54 and 55 from the operators station 18 such as by controls 19.
- shaft 25 is somewhat enlarged as at 60 (FIG. 2) on the side which has chamber 39. This is to equalize the weight of the shaft around the shaft axis. Accordingly, when chamber 39 is empty the shaft is in balance and when rotated will not transmit any vibratory forces to the ground. When the roller is operated with chamber 39 empty only the static forces of the weight of the machine are transmitted to the ground. In this condition the rotation of shaft 25 by motor 34 would serve no useful purpose so it is left in fixed position serving solely as an axle or spindle for the drum 26.
- valve 52 is opened causing liquid to flow into chamber 39.
- the weight of the liquid in the eccentrically located chamber 39 causes shaft 25 to become out of balance. Accordingly, when the shaft 25 is driven by motor 34 the shaft will vibrate by reason of centrifugal force of the added weight and these vibrations will be transmitted through bearings 29 to the drum and then to the ground G.
- valve means located in said second and third conduit means to selectively open or close the same.
- valve means located in said second and third conduit means to independently and selectively open said source to the chamber to move liquid from the chamber through the first conduit means from the chamber into the reservoir or to open said source to the reservoir to move liquid from the reservoir through the first conduit means from the reservoir into the chamber.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Road Paving Machines (AREA)
Abstract
Description
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US81181169A | 1969-04-01 | 1969-04-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3656419A true US3656419A (en) | 1972-04-18 |
Family
ID=25207655
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US811811A Expired - Lifetime US3656419A (en) | 1969-04-01 | 1969-04-01 | Vibratory roller |
Country Status (1)
Country | Link |
---|---|
US (1) | US3656419A (en) |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3814532A (en) * | 1972-02-04 | 1974-06-04 | Raygo Inc | Compacting machine having variable vibration |
US3867073A (en) * | 1972-09-20 | 1975-02-18 | Raygo Inc | Control for fluid motor |
US3888600A (en) * | 1973-07-25 | 1975-06-10 | Koehring Gmbh Bomag Division | Variable mass oscillation exciter |
US3890056A (en) * | 1971-12-28 | 1975-06-17 | Domenico Domenighetti | Combined-action vibro compacting machine for the construction or roads |
US3948329A (en) * | 1974-01-24 | 1976-04-06 | Cummings Ernest W | Apparatus for effecting ground penetration of a ground engaging member |
US4176983A (en) * | 1978-07-17 | 1979-12-04 | Ingersoll-Rand Company | Variable eccentric device |
US4194405A (en) * | 1977-07-23 | 1980-03-25 | Reynolds Lionel A | Vibrator devices |
US4586847A (en) * | 1984-02-10 | 1986-05-06 | Raygo, Inc. | Vibratory mechanism |
DE3523955A1 (en) * | 1985-07-04 | 1987-01-08 | Fritz Prof Dr Rostock | Vibrator unit |
US4759659A (en) * | 1987-07-01 | 1988-07-26 | Fernand Copie | Variable vibrator system |
US5479728A (en) * | 1994-03-08 | 1996-01-02 | The Charles Machine Works, Inc. | Apparatus for backfilling and tamping a trench |
US5618133A (en) * | 1993-11-30 | 1997-04-08 | Sakai Heavy Industries, Ltd. | Vibrating mechanism and apparatus for generating vibrations for a vibration compacting roller with variable amplitude |
US6386794B1 (en) * | 1999-07-13 | 2002-05-14 | Bitelli Spa | Perfected vibrating drum for soil tamping machines |
US20030223817A1 (en) * | 2002-03-07 | 2003-12-04 | Richard Stelbrink | Compaction roller |
US20060104718A1 (en) * | 2004-11-17 | 2006-05-18 | Paske Benjamin J | Shaft assembly for a vibratory roller |
US7089823B2 (en) | 2002-05-29 | 2006-08-15 | Caterpillar Paving Products Inc. | Vibratory mechanism controller |
US20070151377A1 (en) * | 2005-12-13 | 2007-07-05 | Roussy Raymond J | Vibratory apparatus for a rotary-vibratory drill |
CN102852075A (en) * | 2012-02-23 | 2013-01-02 | 江苏大学 | Vibratory roller liquid stepless amplitude modulation vibration exciter |
US20130058717A1 (en) * | 2010-04-16 | 2013-03-07 | Ammann Schweiz Ag | Arrangement for providing a pulsing compressive force |
US8827593B1 (en) * | 2013-06-28 | 2014-09-09 | Caterpillar Paving Products Inc. | Modifying compaction effort based on fluid mass |
US8965638B2 (en) | 2011-06-30 | 2015-02-24 | Caterpillar Paving Products, Inc. | Vibratory frequency selection system |
WO2016032023A1 (en) * | 2014-08-28 | 2016-03-03 | Volvo Construction Equipment Ab | Amplitude changing device using gas cylinder |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2248478A (en) * | 1938-07-08 | 1941-07-08 | Mall Arthur William | Roller vibrator |
US2671386A (en) * | 1950-04-24 | 1954-03-09 | Stothert & Pitt Ltd | Vibrating roller |
US2728277A (en) * | 1952-12-18 | 1955-12-27 | John L Mcrae | Soil compaction machine |
US2955476A (en) * | 1955-04-22 | 1960-10-11 | Junkerather Gewerkschaft | Vibrators |
US2963914A (en) * | 1957-08-08 | 1960-12-13 | Dupouy Vincent Gabriel Bernard | Liquid controlled vibration producing device for vibrating sieves, screens and tables and for other applications |
US3011355A (en) * | 1957-04-29 | 1961-12-05 | Chain Belt Co | Vibration exciter employing a liquid mass |
US3020683A (en) * | 1958-10-31 | 1962-02-13 | Bell Intercontinental Corp | Fluid ballast control system for machine for precision finishing of parts by controlled vibration |
US3048089A (en) * | 1958-09-12 | 1962-08-07 | Bomag Bopparder Machinenbau Ge | Land roller for rolling road surfaces and the like |
US3078730A (en) * | 1961-01-06 | 1963-02-26 | Bell Intercontinental Corp | Vibratory device and amplitude adjustment means |
-
1969
- 1969-04-01 US US811811A patent/US3656419A/en not_active Expired - Lifetime
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2248478A (en) * | 1938-07-08 | 1941-07-08 | Mall Arthur William | Roller vibrator |
US2671386A (en) * | 1950-04-24 | 1954-03-09 | Stothert & Pitt Ltd | Vibrating roller |
US2728277A (en) * | 1952-12-18 | 1955-12-27 | John L Mcrae | Soil compaction machine |
US2955476A (en) * | 1955-04-22 | 1960-10-11 | Junkerather Gewerkschaft | Vibrators |
US3011355A (en) * | 1957-04-29 | 1961-12-05 | Chain Belt Co | Vibration exciter employing a liquid mass |
US2963914A (en) * | 1957-08-08 | 1960-12-13 | Dupouy Vincent Gabriel Bernard | Liquid controlled vibration producing device for vibrating sieves, screens and tables and for other applications |
US3048089A (en) * | 1958-09-12 | 1962-08-07 | Bomag Bopparder Machinenbau Ge | Land roller for rolling road surfaces and the like |
US3020683A (en) * | 1958-10-31 | 1962-02-13 | Bell Intercontinental Corp | Fluid ballast control system for machine for precision finishing of parts by controlled vibration |
US3078730A (en) * | 1961-01-06 | 1963-02-26 | Bell Intercontinental Corp | Vibratory device and amplitude adjustment means |
Cited By (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3890056A (en) * | 1971-12-28 | 1975-06-17 | Domenico Domenighetti | Combined-action vibro compacting machine for the construction or roads |
US3814532A (en) * | 1972-02-04 | 1974-06-04 | Raygo Inc | Compacting machine having variable vibration |
US3867073A (en) * | 1972-09-20 | 1975-02-18 | Raygo Inc | Control for fluid motor |
US3888600A (en) * | 1973-07-25 | 1975-06-10 | Koehring Gmbh Bomag Division | Variable mass oscillation exciter |
US3948329A (en) * | 1974-01-24 | 1976-04-06 | Cummings Ernest W | Apparatus for effecting ground penetration of a ground engaging member |
US4194405A (en) * | 1977-07-23 | 1980-03-25 | Reynolds Lionel A | Vibrator devices |
US4319857A (en) * | 1977-07-23 | 1982-03-16 | Reynolds Lionel A | Vibrator devices in a roadroller |
US4176983A (en) * | 1978-07-17 | 1979-12-04 | Ingersoll-Rand Company | Variable eccentric device |
US4586847A (en) * | 1984-02-10 | 1986-05-06 | Raygo, Inc. | Vibratory mechanism |
DE3523955A1 (en) * | 1985-07-04 | 1987-01-08 | Fritz Prof Dr Rostock | Vibrator unit |
US4759659A (en) * | 1987-07-01 | 1988-07-26 | Fernand Copie | Variable vibrator system |
US5618133A (en) * | 1993-11-30 | 1997-04-08 | Sakai Heavy Industries, Ltd. | Vibrating mechanism and apparatus for generating vibrations for a vibration compacting roller with variable amplitude |
US5479728A (en) * | 1994-03-08 | 1996-01-02 | The Charles Machine Works, Inc. | Apparatus for backfilling and tamping a trench |
US6386794B1 (en) * | 1999-07-13 | 2002-05-14 | Bitelli Spa | Perfected vibrating drum for soil tamping machines |
US20030223817A1 (en) * | 2002-03-07 | 2003-12-04 | Richard Stelbrink | Compaction roller |
US7089823B2 (en) | 2002-05-29 | 2006-08-15 | Caterpillar Paving Products Inc. | Vibratory mechanism controller |
US20060104718A1 (en) * | 2004-11-17 | 2006-05-18 | Paske Benjamin J | Shaft assembly for a vibratory roller |
US7066681B2 (en) * | 2004-11-17 | 2006-06-27 | M-B-W Inc. | Shaft assembly for a vibratory roller |
US20070151377A1 (en) * | 2005-12-13 | 2007-07-05 | Roussy Raymond J | Vibratory apparatus for a rotary-vibratory drill |
US7740085B2 (en) | 2005-12-13 | 2010-06-22 | Roussy Raymond J | Vibratory apparatus for a rotary-vibratory drill |
US20130058717A1 (en) * | 2010-04-16 | 2013-03-07 | Ammann Schweiz Ag | Arrangement for providing a pulsing compressive force |
US8727660B2 (en) * | 2010-04-16 | 2014-05-20 | Ammann Schweiz Ag | Arrangement for providing a pulsing compressive force |
US8965638B2 (en) | 2011-06-30 | 2015-02-24 | Caterpillar Paving Products, Inc. | Vibratory frequency selection system |
CN102852075A (en) * | 2012-02-23 | 2013-01-02 | 江苏大学 | Vibratory roller liquid stepless amplitude modulation vibration exciter |
US8827593B1 (en) * | 2013-06-28 | 2014-09-09 | Caterpillar Paving Products Inc. | Modifying compaction effort based on fluid mass |
WO2014209650A1 (en) * | 2013-06-28 | 2014-12-31 | Caterpillar Paving Products Inc. | Modifying compaction effort based on fluid mass |
WO2016032023A1 (en) * | 2014-08-28 | 2016-03-03 | Volvo Construction Equipment Ab | Amplitude changing device using gas cylinder |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: BROS. INC., MINNESOTA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:AMERICAN HOIST & DERRICK COMPANY;REEL/FRAME:004132/0667 Effective date: 19830525 Owner name: BROS. INC., 1057 10TH AVE. SE. MINNEAPOLIS, MN. 55 Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:AMERICAN HOIST & DERRICK COMPANY;REEL/FRAME:004132/0667 Effective date: 19830525 |
|
AS | Assignment |
Owner name: RAYGO, INC., A CORP. OF OK Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:RAYGO, INC., A CORP. OF MN;REEL/FRAME:005250/0399 Effective date: 19900130 |
|
AS | Assignment |
Owner name: CATERPILLAR PAVING PRODUCTS INC., 735 FIRST NATION Free format text: CHANGE OF NAME;ASSIGNOR:RAYGO, INC., A CORP. OF OK;REEL/FRAME:005541/0313 Effective date: 19880331 |