GB1327002A - Dual amplitude vibration generator - Google Patents

Dual amplitude vibration generator

Info

Publication number
GB1327002A
GB1327002A GB884372A GB884372A GB1327002A GB 1327002 A GB1327002 A GB 1327002A GB 884372 A GB884372 A GB 884372A GB 884372 A GB884372 A GB 884372A GB 1327002 A GB1327002 A GB 1327002A
Authority
GB
United Kingdom
Prior art keywords
shaft
weight
roller
weights
eccentric
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
Application number
GB884372A
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.)
Dynapac AB
Original Assignee
Dynapac AB
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 Dynapac AB filed Critical Dynapac AB
Publication of GB1327002A publication Critical patent/GB1327002A/en
Expired legal-status Critical Current

Links

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/10—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy
    • B06B1/16—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses
    • B06B1/161—Adjustable systems, i.e. where amplitude or direction of frequency of vibration can be varied
    • B06B1/162—Making use of masses with adjustable amount of eccentricity
    • B06B1/164—Making use of masses with adjustable amount of eccentricity the amount of eccentricity being automatically variable as a function of the running condition, e.g. speed, direction
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Road Paving Machines (AREA)

Abstract

1327002 Vibrators VIBRO-VERKEN AB 25 Feb 1972 [4 March 1971] 8843/72 Heading F2X [Also in Division B7] A dual amplitude vibrator has a pair of eccentric weights 12, 14 mounted on a shaft 10 in such a way that a different amplitude of vibration is obtained simply by reversing the rotation of the weights. The weight 12 is attached to the shaft and is rotatable with it, while the weight 14 is mounted on the shaft but is freely rotatable relative to it. Each weight 12, 14 has a pair of contact surfaces (20, 22 and 20<SP>1</SP>, 22<SP>1</SP> respectively) that co-operate with similar surfaces on the other weight, so that when the shaft 10 is rotated in a clockwise direction the surface 20 on the fixed weight 12 engages the surface 20<SP>1</SP> on the free weight 14, resulting in both weights revolving as a single composite eccentric weight as shown in Fig. 1. When the shaft 10 is rotated in an anticlockwise direction, the surfaces 22, 22<SP>1</SP> engage one another, as shown in Fig. 2, resulting in the formation of a composite weight with a centre of gravity nearer the shaft 10 and thereby generating vibrations of lower amplitude. The invention is described with particular reference to its application to the roller of a vibratory road compactor (Fig. 4, not shown). Two pairs of eccentric weights are mounted at opposite ends of the roller, each on a shaft section which is journalled in the roller by means of bearings positioned in outer and inner bearing housings. Each of the inner bearing housings forms a part of an oil reservoir which is integral with a side wall of the roller and projects inwardly from it, the reservoir containing oil for "oil bath" lubrication of the bearings. The shaft sections are joined by a drive shaft and driven by a reversible hydraulic motor.
GB884372A 1971-04-03 1972-02-28 Dual amplitude vibration generator Expired GB1327002A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12103671A 1971-04-03 1971-04-03

Publications (1)

Publication Number Publication Date
GB1327002A true GB1327002A (en) 1973-08-15

Family

ID=22394100

Family Applications (1)

Application Number Title Priority Date Filing Date
GB884372A Expired GB1327002A (en) 1971-04-03 1972-02-28 Dual amplitude vibration generator

Country Status (2)

Country Link
US (1) US3722381A (en)
GB (1) GB1327002A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2139736A (en) * 1983-05-12 1984-11-14 Ingersoll Rand Co A plural-amplitude vibration assembly

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1407421A (en) * 1972-02-04 1975-09-24 Raygo Inc Vibratory surface compacting machine
ES414348A1 (en) * 1973-05-03 1976-02-01 Lebrero Martinez Vibrating roller
US3909147A (en) * 1974-11-07 1975-09-30 Raygo Inc Variable amplitude vibration generator
JPS5211631A (en) * 1975-07-17 1977-01-28 Kensetsu Kikai Chiyousa Kk Method and device for dredging with grab bucket
US4152943A (en) * 1978-02-24 1979-05-08 Ingersoll-Rand Company Vibratory mechanism
US4350460A (en) * 1980-03-21 1982-09-21 Hyster Company Vibratory compaction system
US4342485A (en) * 1980-08-29 1982-08-03 Dynapac Maskin Ab Cold surface planer cooling apparatus
US4398843A (en) * 1980-12-05 1983-08-16 Caterpillar Tractor Co. Self-aligning arrangement for the eccentric mounting shaft of a vibratory compactor
AU570233B2 (en) * 1983-02-18 1988-03-10 Bowater Tutt Industries Pty. Ltd. Vibratory mechanism
CA1220373A (en) * 1984-07-20 1987-04-14 Raymond J. Stanton Vibratory mechanism
DE3518984A1 (en) * 1985-05-25 1986-11-27 Festo KG, 7300 Esslingen BALANCED ORBIT SANDER
US4759659A (en) * 1987-07-01 1988-07-26 Fernand Copie Variable vibrator system
US5220845A (en) * 1992-04-06 1993-06-22 N.P.K. Equipment Construction, Inc. Vibratory compactor bearing lubrication
US5479728A (en) * 1994-03-08 1996-01-02 The Charles Machine Works, Inc. Apparatus for backfilling and tamping a trench
CN101250846B (en) * 2008-04-03 2010-10-27 屠卫东 Lubricating and cooling system for vibrating roller
SE537044C2 (en) 2013-04-29 2014-12-16 Dynapac Compaction Equip Ab Eccentric shaft for compacting machine
DE202014105626U1 (en) 2014-11-21 2016-02-23 Dynapac Compaction Equipment Ab Eccentric shaft with fixed and movable eccentric weight
CN105696446B (en) * 2016-01-28 2017-12-19 山推工程机械股份有限公司 The ungraded amplitude device and vibrated roller of vibrated roller
US11421390B2 (en) * 2020-10-22 2022-08-23 Caterpillar Paving Products Inc. Adjustable mass eccentric for multi-amplitude vibratory mechanism for compactor and system and method thereof
DE102022132599A1 (en) 2022-12-08 2024-06-13 Hamm Ag Soil cultivation roller for a soil cultivation machine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3097537A (en) * 1963-07-16 Vibration-inducing apparatus
GB937340A (en) * 1962-08-17 1963-09-18 Thomas Green And Son Ltd Improvements in and relating to vibratory rollers
AT303802B (en) * 1968-04-19 1972-12-11 Abg Werke Gmbh Vibrating roller with eccentric masses to generate balancing forces
CH506423A (en) * 1969-04-11 1971-04-30 Polyservice Ag Vibrator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2139736A (en) * 1983-05-12 1984-11-14 Ingersoll Rand Co A plural-amplitude vibration assembly

Also Published As

Publication number Publication date
US3722381A (en) 1973-03-27

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees