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EP2350397A1 - Chargeuses à direction à glissement avec isolation variable sur rouleau vibrant - Google Patents

Chargeuses à direction à glissement avec isolation variable sur rouleau vibrant

Info

Publication number
EP2350397A1
EP2350397A1 EP09741128A EP09741128A EP2350397A1 EP 2350397 A1 EP2350397 A1 EP 2350397A1 EP 09741128 A EP09741128 A EP 09741128A EP 09741128 A EP09741128 A EP 09741128A EP 2350397 A1 EP2350397 A1 EP 2350397A1
Authority
EP
European Patent Office
Prior art keywords
isolators
variable
vibratory roller
skid steer
steer loader
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.)
Withdrawn
Application number
EP09741128A
Other languages
German (de)
English (en)
Inventor
Ahmet Kartal
Carl James Wieland
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.)
Doosan Bobcat North America Inc
Original Assignee
Clark Equipment Co
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 Clark Equipment Co filed Critical Clark Equipment Co
Publication of EP2350397A1 publication Critical patent/EP2350397A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
    • E02F3/967—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements of compacting-type tools
    • 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
    • E01C19/281—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows propelled by hand or by vehicles, e.g. towed
    • 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
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/0808—Improving mounting or assembling, e.g. frame elements, disposition of all the components on the superstructures
    • E02F9/0816—Welded frame structure

Definitions

  • the vibratory roller attachment includes a frame configured to be mounted to the skid steer loader.
  • a drum is supported by the frame, and an eccentric weight is positioned within the drum.
  • a plurality of variable isolators couple the drum to the frame to provide isolation of the skid steer loader from vibrations of the vibratory roller.
  • the plurality of variable isolators each have a non-cylindrical exterior shape.
  • the non-cylindrical shape can include an exterior surface having curved end portions separated by a substantially linear middle portion to allow for improved deflection of the variable isolators, and thus improved vibration isolation between the attachment and the skid steer loader.
  • FIG. 1-1 is a perspective view of a skid steer loader with a vibratory roller attachment.
  • FIG. 2 is a diagrammatic perspective view illustration of interior portions of the vibratory roller attachment, showing variable isolators in accordance with disclosed embodiments.
  • FIGS. 3-6 are diagrammatic side view illustrations of portions of the vibratory roller attachment of FIGS. 1 and 2.
  • FIG. 7 is a diagrammatic perspective view illustration of interior portions of the vibratory roller attachment of FIGS. 1-6.
  • FIG. 8 is a diagrammatic perspective view illustration of a variable isolator in accordance with disclosed embodiments.
  • FIGS. 9 and 10 are diagrammatic side view illustrations of a variable isolator in accordance with disclosed embodiments.
  • FIG. 11 is a shear load deflection chart for a variable isolator in accordance with disclosed embodiments.
  • FIG. 12 is a compression load deflection chart in accordance with disclosed embodiments.
  • FIG. 1 shows a skid steer loader 100 having a vibratory roller implement or attachment 200.
  • Skid steer loader 100 has numerous components which are well known in the art, and which are not described here. Discussions of such common features can be found, for example, in U.S. Patent Nos. 6,910,731, 6,866,466, and 6,695,568, which are all herein incorporated by reference.
  • skid steer loader 100 includes a body portion 110 and an operator compartment 120.
  • a set of lift arms 130 is coupled to the body portion, and supports the vibratory roller 200.
  • the vibratory roller includes, among other components, a drum 205 supported by a frame 210.
  • Disclosed embodiments utilize an improved isolator configuration to isolate the loader 100, and particularly the operator compartment 120, from vibrations in the vibratory roller.
  • FIG. 2 shown is a partially exploded view of vibratory roller 200, with the drum 205 removed to illustrate some interior components.
  • the frame 210 is coupled to loader 100 via a back plate 220.
  • a plurality of pads 230 can be mounted to the drum and are shown in exploded format in FIG. 2.
  • Discs 240 are welded or otherwise secured within the drum itself.
  • An eccentric weight 250 is supported by eccentric bearings, (drum bearing mounting plate 260 is shown) and allowed to rotate free from drum rotation.
  • isolators 270 having an improved configuration isolate the vibrations, associated with the dynamic force, from the frame 210, and thus from the loader and the loader operator.
  • Isolator attachment members 265 are used to bolt or otherwise attach the isolators 270 to the drum bearing mounting plate 260.
  • the isolators are also bolted or otherwise attached to an isolator mount 275 which is coupled to (or is part of) the frame weldment.
  • FIGS. 3-6 shown are portions of vibratory roller 200 from an end view perspective, with various components removed for illustrative purposes.
  • FIG. 3 shows the entire assembly, including the drum 205, frame 210, back plate 220, and pads 230.
  • Isolator mount 275 is shown diagrammatically, though it would be hidden behind frame 210 ordinarily.
  • FIG. 4 has part of the side frame removed, showing the isolator attachment members 265 and the isolator mount 275, which is part of the frame weldment.
  • FIG. 5 shows the isolators 270 and the drum bearing mounting plate 260, along with other components such as drum 205.
  • FIG. 6 illustrates just the isolators 270 and the drum bearing mounting plate 260.
  • FIG. 7 shown is a diagrammatic isometric view illustrating portions of the weight 250, the drum support bearing plate 260, the isolator attachment members 265 and the isolators 270, etc. in further detail.
  • the drive shaft 305 transmits power from the motor 310 to the eccentric weight 250 to spin the weight to create the dynamic force of the vibratory roller.
  • the drum displaces relative to the frame by as much as 1.5 inches.
  • the purpose for the displacement is to more effectively isolate vibrations over a wider range of carriers, and in this case, providing isolation for small loaders.
  • the isolators 270 in accordance with disclosed embodiments provide for such a wide range of displacements, and thus provide vibration isolation for a wide range of different skid steer loader carrier models and sizes.
  • FIG. 8 shown is a diagrammatic isometric view of an isolator 270 in accordance with disclosed embodiments.
  • FIG. 8 shows some of the outer contour 805 of the isolator 270.
  • Also shown diagrammatic ally is a representation of the hollow interior 810 of the isolator. Both the shapes of the outer and interior surfaces 805 and 810 of isolator 270 function to allow greater deflection, and thus greater displacements to isolate the loader from the vibratory roller.
  • the drum is mounted to the frame of the vibratory roller through the isolators.
  • the isolators are stationary relative to the frame.
  • the down force of the loader causes deflection of the isolators, and thus provides isolation of the loader and the loader operator from the vibrations of the vibratory roller.
  • variable isolators have been solid pieces of rubber, frequently of cylindrical shape, with threaded holes on each end for mounting the isolators.
  • the present vibratory rollers provide advantages over these conventional vibratory rollers by allowing a higher degree of deflection of the isolator. Both the internal and external profiles of the isolator aid in providing this higher degree of deflection. Also playing a role in providing the higher degree of deflection, while still providing the required support, is the material used in isolators 270.
  • isolators 270 are compression molded rubber in order to achieve the desired strength and deflection.
  • variable isolator 270 from a side diagrammatic view, illustrating both the exterior 805 side surfaces and interior 810 surfaces in greater detail.
  • variable isolator 270 has a shape similar to a hyperboloid, but with a straight middle portion.
  • curved ends 905 and 910 of the exterior side surface share a common radius, but are separated by a substantially linear middle portion 920.
  • curved portions 905 and 910 need not have the same radius of curvature.
  • This isolator design, having a hyperboloid like geometry at its end side portions, modified with a straight mid section, has been shown to provide improved isolation performance compared to conventional designs. Hollow interior 930 also aids in providing these improvements.
  • the internal shape of isolator 270 also helps to get the stiffness/flexibility that is desired.
  • the tapered aspect of the interior surface 810 where it is tapered along a draft angle, is primarily to help remove isolator 270 out of the compression mold.
  • the hollow interior in general though helps to establish the stiffness at a point to allow sufficient deflection instead of making isolator 270 too rigid.
  • Conventional variable isolators for skid steer loaders have tended to be solid, without the hollow interior. Disclosed embodiments, allow for higher degrees of deflection.
  • the hollow center also allows heat reduction, which is desirable with high frequency cycling while high deflection is experienced.
  • FIG. 10 is an illustration of the same isolator 270 shown in FIG. 9, but with example dimensions (in inches) added for illustrative purposes.
  • FIG. 11 illustrates a shear load deflection chart for these exemplary isolators.
  • the load in pounds per isolator is plotted against the deflection in inches of the isolator. This shows significantly more deflection for a particular load than conventional isolators.
  • the variable rubber isolator is intended for loading in the radial direction.
  • the spring rate of the isolator allows for effective isolation throughout all approved carriers. The down forces applied by the approved carriers ranges from 500 pounds to 2500 pounds respectively.
  • FIG. 12 shows a compression load deflection chart, showing deflection in inches for particular loads in pounds under compression conditions. The compression loading shown in FIG. 12 is applicable to circumstances where the loader is turning, placing the isolators in a compression mode.
  • the molding process as well as the internal and exterior profiles of the isolator allows the effective range of motion to be dramatically increased while providing superior isolation throughout a very large range of shear loads.
  • Current production vibratory roller attachments for skid steer loaders utilize isolators that are sized for only the largest approved skid steer loaders.
  • the variable isolators effectively dampen the vibration created by the vibratory roller throughout all approved loader sizes without overloading the isolators.
  • the effective spring rate of the isolators in shear is, for example, 720 pounds per inch, providing improved performance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

Cette invention concerne des modes de réalisation de chargeuses à direction à glissement (100) et de dispositifs adaptables de rouleaux vibrants (200). Dans lesdits modes de réalisation, un isolateur variable amélioré (270) est fourni pour isoler la chargeuse à direction à glissement, et partant le conducteur de la chargeuse, des vibrations importantes provenant du rouleau vibrant. Le dispositif adaptable de rouleau vibrant comprend un support (210) conçu pour être monté sur la chargeuse à direction à glissement. Un tambour (205) est supporté par le cadre, et un poids excentrique (250) est disposé à l’intérieur du tambour. Une pluralité d’isolateurs variables (270) relient le tambour au support pour isoler la chargeuse à direction à glissement des vibrations du rouleau vibrant. Les isolateurs variables ont chacun une forme externe non cylindrique (805). La forme non cylindrique peut comprendre une surface externe présentant des parties d’extrémité incurvées (905, 910) séparées par une partie intermédiaire sensiblement linéaire (920) pour permettre une déviation améliorée des isolateurs variables et partant une isolation améliorée des vibrations entre le dispositif adaptable et la chargeuse à direction à glissement.
EP09741128A 2008-10-14 2009-10-14 Chargeuses à direction à glissement avec isolation variable sur rouleau vibrant Withdrawn EP2350397A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10518308P 2008-10-14 2008-10-14
PCT/US2009/060628 WO2010045316A1 (fr) 2008-10-14 2009-10-14 Chargeuses à direction à glissement avec isolation variable sur rouleau vibrant

Publications (1)

Publication Number Publication Date
EP2350397A1 true EP2350397A1 (fr) 2011-08-03

Family

ID=41319970

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09741128A Withdrawn EP2350397A1 (fr) 2008-10-14 2009-10-14 Chargeuses à direction à glissement avec isolation variable sur rouleau vibrant

Country Status (5)

Country Link
US (1) US20100098521A1 (fr)
EP (1) EP2350397A1 (fr)
CN (1) CN102187037A (fr)
CA (1) CA2739073A1 (fr)
WO (1) WO2010045316A1 (fr)

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US9200225B2 (en) 2010-08-03 2015-12-01 Suncoke Technology And Development Llc. Method and apparatus for compacting coal for a coal coking process
DE102016107366A1 (de) * 2016-04-21 2017-10-26 Hamm Ag Bodenverdichter
DE102018132378A1 (de) * 2018-12-17 2020-06-18 Hamm Ag Bodenbearbeitungsmaschine
DE102018132377A1 (de) * 2018-12-17 2020-06-18 Hamm Ag Bodenbearbeitungsmaschine
US11326323B2 (en) 2020-02-11 2022-05-10 Bernard E. Wielenberg Dirt contouring and grading device
AU2022200763B1 (en) * 2021-02-05 2022-05-19 Bridge Design & Construct Pty Ltd Compactor and roller drum therefore

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Also Published As

Publication number Publication date
CA2739073A1 (fr) 2010-04-22
CN102187037A (zh) 2011-09-14
US20100098521A1 (en) 2010-04-22
WO2010045316A1 (fr) 2010-04-22

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