US3415174A - Tandem-type road roller - Google Patents
Tandem-type road roller Download PDFInfo
- Publication number
- US3415174A US3415174A US581540A US58154066A US3415174A US 3415174 A US3415174 A US 3415174A US 581540 A US581540 A US 581540A US 58154066 A US58154066 A US 58154066A US 3415174 A US3415174 A US 3415174A
- Authority
- US
- United States
- Prior art keywords
- weights
- drums
- roller
- shafts
- tandem
- 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
Links
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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
- unbalanced shafts are arranged internally of the roller drums, and an eccentric or off-center weight is associated wtih each shaft.
- the weights are arranged offset relative to one another from shaft-to-shaft by 180 degrees. Due to this arrangement each unbalanced shaft on rotating through 180 degrees applies a vertical impulse to its associated drum over its entire axial length.
- the eccentric weights unbalancing the shafts of the tandem roller are offset by 180 degrees relatime to each other one of the roller drums is loaded by a downwardly directed vibration impulse while at the same time the other roller drum is relieved of any load by the upwardly directed impulse or force of its associated eccentric weight. Accordingly, the impulses travel from one roller to the other and back each time the shafts rotate through 180 degrees.
- a primary object of this invention is to provide improvements in vibrating tandenm rollers of the aforementioned type whereby surface compacting is appreciably increased and the time of compacting is materially reduced.
- the eccentric or unbalancing weights can be offset 90 degrees in the manner heretofore described in a variety of different ways beginning, for example, with the impulse 3,4 15,1 74 Patented Dec. 10, 1 968 traveling axially along one shaft in a first axial direction and proceeding along the other shaft in an opposite direction. In this way the vibrations are applied against the ground diagonally of the direction of road roller travel which has been found to be highly advantageous with certain types of ground or soil characteristics.
- the off-center weights of the same shaft are offset by 180 degrees and the off-center weights from shaft-toshaft of the road roller are offset by degrees.
- each drurn shaft includes four drums provided with two off-center weights each with the off-center weights of the drums adjacent one another being off-set by 90 degrees, and the off-center weights of the drums lying one behind the other offset by degrees.
- the roller is subjected to high-frequency vibrations for surface compaction.
- the extremely rapid sequence of the vibration forces improve surface compaction very considerably and the performance of the tandem roller is substantially increased by relatively simple but unobvious means.
- the tandem road roller of this invention may also be arranged in such manner that the off-center weights within the same drum are offset by 90 degrees relative to one another and the off-center weights of the adjacent drums are offset by 45 degrees relative to each other, in which the case the off-center weights of the drums lying one behind the other are offset by 180 degrees relative to one another.
- the extent of the vibration, as viewed along the axis of the drums lying one behind the other remains in excess of half a complete deflection.
- the drums lying one behind the other can each be mounted in a frame with the frames being pivotally mounted about a common central axis.
- the adjacent shafts can be, for example, interconnected by elastic couplings, or each pair of successive drums is mounted in a r-igid frame connected with an adjacent frame by elastic buffer members, while the unbalanced shafts of adjacent drums are connected to each other by elastic couplings.
- FIG. 1 is a highly diagrammatic perspective view of a tandem road roller constructed in accordance with this inveniton, and illustrates a pair of roller drums and eccentric weights associated with the shafts thereof;
- FIG. 2 is a highly diagrammatic partial sectional view of another tandem road roller of this invention, and illustrates two pairs of adjacent roller drums and a pair of eccentric weights associated with each of the shafts thereof;
- FIG. 3 is a sectional view taken generally along line IlI-III of FIG. 2, and illustrates the rotational offset relationship of eccentric weights carried by upper and lower drums of the tandem roller;
- FIG. is a diagrammatic view of the shafts of the roller of FIG. 4, and illustrates relative positions of the eccentric weights carried thereby during the rotation of the shafts.
- the shafts 6, 7 and the drums 2, 3 respectively associated therewith are normally rotated counterclockwise to drive the road roller 1 in the direction of the arrow 9, or in an opposite direction, by a belt or chain 8 entrained about pulleys (unnumbered) fixed to the shafts, at least one of which is driven by an engine or similar conventional means (not shown) in both clockwise and counterclockwise directions, as desired.
- Each of the shafts 6, 7 is provided at its axially opposite ends with eccentric weights 10, 11 and 12, 13, respectively.
- the weights through 13 are each offset circumferentially by 90 degrees relative to each other, including the weights on one and the same shafts 6, 7 whereby the weights are thereby offset diagonally relative to each other.
- four downwardly directed impulses or forces are generated during each 360 degree revolution of the shafts 6, 7, and are further directed diagonally, as well as longitudinally, of the roller drums 2, 3.
- the road roller of FIG. 1 is but one embodiment of the invention which achieves the advantages heretofore noted, but in accordance with another embodiment of the invention the road roller (FIGS. 2 and 3) may inelude pairs of adjacent drums 16a, 16b and 17a, 17b arranged one behind the other normal to the forward and backward directions of travel of the roller.
- the road roller (FIGS. 2 and 3) may inelude pairs of adjacent drums 16a, 16b and 17a, 17b arranged one behind the other normal to the forward and backward directions of travel of the roller.
- drums 16a, 16b, 17a and 17b are mounted on shafts 18a, 18b, 19a and 19b, respectively which is journaled for rotation in frames 20, 21 of the roller.
- the shafts 18a, 18b, 19a and 19b carry respective eccentrically mounted weights 29, 29; 30, 30; 31, 31 and 32, 32, and the rigid frames are mounted for pivoting movement relative to each other about a common shaft 22 with a collar 22a maintaining the frames 20, 21 in spaced relationship to each other.
- the shafts 18a and 19a are connected to the respective shafts 18b, 19b by elastic couplings 35, 36, respectively.
- the couplings 35, 36 may be, for example, socket-type connections coupled together by elastic members such as, for example, blocks of rubber, plastic or similar elastic materials.
- the shafts 18a, 18b, 19a and 19b are rotated commonly in either of clockwise or counterclockwise directions by means of a belt or chain 25 entrained about pulleys 26, 27.
- Suitable means such as an engine or motor, is connected to drive the shafts through the pulley 28.
- the off-center or eccentric pairs of weights 29, are offset by 90 degrees relative to the offset weights 31, 32 of adjacent drums, while the weights 29, 30 and 31, 32 are arranged 180 degrees offset to each other in the drums lying one behind the other.
- the weights 31 are located beneath the shaft 19a while the weights 29 are located above the shaft 18a.
- the offcenter or eccentric weights 30, 32 are each located on the outside of their associated shafts.
- drums 16a, 17a and 16b, 17a and 16b, 17b lie one behind the other and are journaled for rotation in respective generally rectangular rigid frames 33, 34 by respective unbalanced shafts 18a, 18b and 19a, 19b.
- the shafts 18a, 18b and 19a, 19b are coupled together by flexible elastic couplings 35, 36, respectively.
- Adjacent innermost frame members 33a and 34a of the respective frames 33, 34 are resiliently interconnected by elastic buffer blocks 37, 38.
- Each of the drums 16a 16b, 17a and 17b is provided with two off-center or eccentric weights 29a, 29b; 30a, 30b; 31a, 31b and 32a, 32b, respectively.
- FIG. 5 of the drawings The relative positions of the eccentrically mounted weights is clearly illustrated in FIG. 5 of the drawings in which it will be noted that the position of the eccentric weights relative to one another is such that the weights within any one drum are offset circumferentially by degrees relative to each other and the eccentric weights of the adjacent drum are offset circumferentially by 45 degrees relative to each other while the weights of the drums lying one behind the other are offset by degrees.
- a tandem road roller for producing a vibration impulse comprising:
- a tandem road roller for producing a vibration impulse comprising:
- tandem road roller as defined in claim 4 wherein said rigid frame structure consists of a pair of adjacent rigid fraimes,
- said shaft means consists of a separate shaft for each drum
- the shafts of adjacent drums are in coaxial relationship to each other and are disposed normal to the direction of roller travel, and
- tandem road roller as defined in claim 5 Wherein means are provided for pivotally connecting said frames to each other for pivoting movement about an axis normal to the direction of roller travel.
- tandem road roller as defined in claim 4 wherein said rigid frame structure consists of a pair of adjacent means are provided for pivotally connecting said frames to each other for pivoting movement about an axis normal to the direction of roller travel.
- tandem road roller as defined in claim 8 wherein the Weights of adjacent drums are offset by 90 degrees relative to one another, and the weights of successive drums in the direction of roller travel are offset relative to one another by 180 degrees.
- tandem road roller as defined in claim 10 wherein the weights associated with the same drum are offset circumferentially by 90 degrees relative to each other, and the weights of the drum adjacent said latter mentioned drum are offset circumferentially by degrees relative to each other whereby the weights of the drums lying one behind the other are offset circumferentially by degrees relative to each other.
- tandem road roller as defined in claim 12 wherein said rigid frame structure consists of a pair of adjacent rigid frames, and
- means are provided for pivotally connecting said frames to each other for pivoting movement about an axis normal to the direction of roller travel.
- tandem road roller as defined in claim 13 wherein there is a shaft associated with each drum, the shafts of adjacent drums are in coaxial relationship to each other and are disposed normal to the direction of roller travel, and means are provided for coupling the adjacent shaft to each other while providing relative movement therebetween.
- tandem road roller as defined in claim 13 wherein elastic buffer means are provided between the pair of frames in interconnected relationship thereto.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
- Road Repair (AREA)
- Basic Packing Technique (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK0056484 | 1965-06-26 | ||
DEK0059476 | 1966-06-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3415174A true US3415174A (en) | 1968-12-10 |
Family
ID=25984085
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US581540A Expired - Lifetime US3415174A (en) | 1965-06-26 | 1966-09-23 | Tandem-type road roller |
Country Status (11)
Country | Link |
---|---|
US (1) | US3415174A (bg) |
JP (1) | JPS4915001B1 (bg) |
AT (1) | AT283427B (bg) |
BE (1) | BE683126A (bg) |
CH (1) | CH453411A (bg) |
DK (1) | DK117505B (bg) |
ES (1) | ES328397A1 (bg) |
FR (1) | FR1484468A (bg) |
GB (1) | GB1148006A (bg) |
NL (1) | NL6608877A (bg) |
SE (1) | SE314097B (bg) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3595145A (en) * | 1968-09-11 | 1971-07-27 | Bopparder Maschinenbau Gmbh | Soil compacting machine |
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 |
US4577995A (en) * | 1983-04-07 | 1986-03-25 | Sakai Heavy Industries Ltd. | Mechanism for generating vibrations for a ground compacting machine |
US4647247A (en) * | 1980-12-03 | 1987-03-03 | Geodynamik H. Thurner Ab | Method of compacting a material layer and a compacting machine for carrying out the method |
US4717282A (en) * | 1986-07-15 | 1988-01-05 | Anderson Roger K | Roller carriage assembly for use with a road surface finishing machine |
US4993869A (en) * | 1989-04-07 | 1991-02-19 | Cmi Corporation | Concrete finishing machine with vibrating finishing rollers |
US5046889A (en) * | 1989-12-05 | 1991-09-10 | Sterner Jr Carl L | Rolling screed spreader box |
US6350083B1 (en) * | 1999-05-03 | 2002-02-26 | Tod Paladeni | Powered roller screed |
US6402425B1 (en) * | 1999-05-03 | 2002-06-11 | Tod Paladeni | Powered roller screed having a split drive tube |
US20040168531A1 (en) * | 2003-02-24 | 2004-09-02 | Sakai Heavy Industries, Ltd. | Vibratory mechanism and vibratory roller |
US20180133757A1 (en) * | 2016-10-21 | 2018-05-17 | Hutchinson | Dynamic imbalanced force generator and an actuator comprising such a generator |
US20190242074A1 (en) * | 2018-01-05 | 2019-08-08 | Vibco, Inc. | Forward and reversible self-propelled vibratory pothole packer |
RU2735316C1 (ru) * | 2019-09-13 | 2020-10-30 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Сибирский государственный автомобильно-дорожный университет (СибАДИ)" | Дорожный виброкаток |
EP3892087A1 (en) * | 2020-04-07 | 2021-10-13 | Deere & Company | Oscillating silage compactor |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1910407A1 (de) * | 1969-02-28 | 1970-09-10 | Benno Kaltenegger | Strassenwalze mit vier Walzentrommeln |
CN110468662A (zh) * | 2019-07-22 | 2019-11-19 | 青岛科技大学 | 一种压路机无级调幅激振装置 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2633781A (en) * | 1948-01-30 | 1953-04-07 | William P Day | Apparatus for road construction |
US2743585A (en) * | 1949-11-04 | 1956-05-01 | Berthet Francois | Driving and pulling of piles, pile planks, tubing, and the like |
US3038350A (en) * | 1958-12-01 | 1962-06-12 | Meyer John Henry | Apparatus for finishing concrete floors |
US3048089A (en) * | 1958-09-12 | 1962-08-07 | Bomag Bopparder Machinenbau Ge | Land roller for rolling road surfaces and the like |
US3053157A (en) * | 1959-05-01 | 1962-09-11 | Tampo Mfg Co Inc | Vibratory compacting device |
US3082668A (en) * | 1959-11-20 | 1963-03-26 | Vibrator Mfg Company | Surface-treating machine |
US3097537A (en) * | 1963-07-16 | Vibration-inducing apparatus | ||
US3309972A (en) * | 1963-06-21 | 1967-03-21 | Bomag Bopparder Maschb Ges M B | Vibrating road roller |
-
0
- FR FR1484468D patent/FR1484468A/fr not_active Expired
-
1966
- 1966-06-20 SE SE8405/66A patent/SE314097B/xx unknown
- 1966-06-22 CH CH921566A patent/CH453411A/de unknown
- 1966-06-23 AT AT598566A patent/AT283427B/de not_active IP Right Cessation
- 1966-06-24 NL NL6608877A patent/NL6608877A/xx unknown
- 1966-06-24 DK DK326666AA patent/DK117505B/da unknown
- 1966-06-24 BE BE683126D patent/BE683126A/xx unknown
- 1966-06-25 ES ES0328397A patent/ES328397A1/es not_active Expired
- 1966-06-27 GB GB28794/66A patent/GB1148006A/en not_active Expired
- 1966-06-27 JP JP41041744A patent/JPS4915001B1/ja active Pending
- 1966-09-23 US US581540A patent/US3415174A/en not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3097537A (en) * | 1963-07-16 | Vibration-inducing apparatus | ||
US2633781A (en) * | 1948-01-30 | 1953-04-07 | William P Day | Apparatus for road construction |
US2743585A (en) * | 1949-11-04 | 1956-05-01 | Berthet Francois | Driving and pulling of piles, pile planks, tubing, and the like |
US3048089A (en) * | 1958-09-12 | 1962-08-07 | Bomag Bopparder Machinenbau Ge | Land roller for rolling road surfaces and the like |
US3038350A (en) * | 1958-12-01 | 1962-06-12 | Meyer John Henry | Apparatus for finishing concrete floors |
US3053157A (en) * | 1959-05-01 | 1962-09-11 | Tampo Mfg Co Inc | Vibratory compacting device |
US3082668A (en) * | 1959-11-20 | 1963-03-26 | Vibrator Mfg Company | Surface-treating machine |
US3309972A (en) * | 1963-06-21 | 1967-03-21 | Bomag Bopparder Maschb Ges M B | Vibrating road roller |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3595145A (en) * | 1968-09-11 | 1971-07-27 | Bopparder Maschinenbau Gmbh | Soil compacting machine |
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 |
US4647247A (en) * | 1980-12-03 | 1987-03-03 | Geodynamik H. Thurner Ab | Method of compacting a material layer and a compacting machine for carrying out the method |
US4577995A (en) * | 1983-04-07 | 1986-03-25 | Sakai Heavy Industries Ltd. | Mechanism for generating vibrations for a ground compacting machine |
US4717282A (en) * | 1986-07-15 | 1988-01-05 | Anderson Roger K | Roller carriage assembly for use with a road surface finishing machine |
US4993869A (en) * | 1989-04-07 | 1991-02-19 | Cmi Corporation | Concrete finishing machine with vibrating finishing rollers |
US5046889A (en) * | 1989-12-05 | 1991-09-10 | Sterner Jr Carl L | Rolling screed spreader box |
US6350083B1 (en) * | 1999-05-03 | 2002-02-26 | Tod Paladeni | Powered roller screed |
US6402425B1 (en) * | 1999-05-03 | 2002-06-11 | Tod Paladeni | Powered roller screed having a split drive tube |
US20040168531A1 (en) * | 2003-02-24 | 2004-09-02 | Sakai Heavy Industries, Ltd. | Vibratory mechanism and vibratory roller |
US7213479B2 (en) * | 2003-02-24 | 2007-05-08 | Sakai Heavy Industries, Ltd. | Vibratory mechanism and vibratory roller |
US20180133757A1 (en) * | 2016-10-21 | 2018-05-17 | Hutchinson | Dynamic imbalanced force generator and an actuator comprising such a generator |
US10625302B2 (en) * | 2016-10-21 | 2020-04-21 | Hutchinson | Dynamic imbalanced force generator and an actuator comprising such a generator |
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 |
RU2735316C1 (ru) * | 2019-09-13 | 2020-10-30 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Сибирский государственный автомобильно-дорожный университет (СибАДИ)" | Дорожный виброкаток |
EP3892087A1 (en) * | 2020-04-07 | 2021-10-13 | 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 |
---|---|
NL6608877A (bg) | 1966-12-27 |
GB1148006A (en) | 1969-04-10 |
CH453411A (de) | 1968-06-14 |
FR1484468A (bg) | 1967-09-15 |
AT283427B (de) | 1970-08-10 |
DE1634428A1 (de) | 1970-08-13 |
DK117505B (da) | 1970-05-04 |
SE314097B (bg) | 1969-09-01 |
ES328397A1 (es) | 1967-04-01 |
JPS4915001B1 (bg) | 1974-04-11 |
DE1634428B2 (de) | 1974-10-03 |
BE683126A (bg) | 1966-12-27 |
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