US3415174A - Tandem-type road roller - Google Patents

Tandem-type road roller Download PDF

Info

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
Application number
US581540A
Other languages
English (en)
Inventor
Kaltenegger Benno
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.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3415174A publication Critical patent/US3415174A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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

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)
  • Basic Packing Technique (AREA)
  • Road Repair (AREA)
US581540A 1965-06-26 1966-09-23 Tandem-type road roller Expired - Lifetime US3415174A (en)

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 (de)
JP (1) JPS4915001B1 (de)
AT (1) AT283427B (de)
BE (1) BE683126A (de)
CH (1) CH453411A (de)
DK (1) DK117505B (de)
ES (1) ES328397A1 (de)
FR (1) FR1484468A (de)
GB (1) GB1148006A (de)
NL (1) NL6608877A (de)
SE (1) SE314097B (de)

Cited By (15)

* Cited by examiner, † Cited by third party
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 (de) * 2020-04-07 2021-10-13 Deere & Company Oszillierender silageverdichter

Families Citing this family (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (8)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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 (de) * 2020-04-07 2021-10-13 Deere & Company Oszillierender silageverdichter
US11247426B2 (en) 2020-04-07 2022-02-15 Deere & Company Oscillating silage compactor

Also Published As

Publication number Publication date
DE1634428B2 (de) 1974-10-03
JPS4915001B1 (de) 1974-04-11
ES328397A1 (es) 1967-04-01
DK117505B (da) 1970-05-04
NL6608877A (de) 1966-12-27
GB1148006A (en) 1969-04-10
FR1484468A (de) 1967-09-15
BE683126A (de) 1966-12-27
CH453411A (de) 1968-06-14
DE1634428A1 (de) 1970-08-13
SE314097B (de) 1969-09-01
AT283427B (de) 1970-08-10

Similar Documents

Publication Publication Date Title
US3415174A (en) Tandem-type road roller
US3048089A (en) Land roller for rolling road surfaces and the like
US3616730A (en) Vibratory roller
US2374663A (en) Method of and apparatus for conveying
US2541496A (en) Walking tractor tread driving mechanism
US1879923A (en) Drive mechanism
US3703127A (en) Rigid base earth compactor
US2951427A (en) Road working machine
US3595145A (en) Soil compacting machine
US3016232A (en) Mixer driven and supported by wheels of flexible material
US2644379A (en) Paving machine
US2292327A (en) Gyrating mechanism
US3076549A (en) Vibrating unit for screening and feeding
US1245656A (en) Rotary shovel.
US2457413A (en) Vibrator
GB1116428A (en) Improvements in or relating to reclaiming machines
US3947167A (en) Vibrating paddle assembly for a slip former
US2097347A (en) Vibratory motion producing apparatus
SU418224A1 (de)
US2334768A (en) Self-aligning pulley
US3605584A (en) Vibratory road roller
US2862393A (en) Vibrating apparatus for concrete or like material
US1742420A (en) Vibrating skip for concrete mixers
US1544879A (en) Machine for molding concrete posts and the like
US1002967A (en) Coal separator and grader.