WO2007107812A1 - Rouleau ou poulie de bande transporteuse presentant une surface de contact renouvelable - Google Patents

Rouleau ou poulie de bande transporteuse presentant une surface de contact renouvelable Download PDF

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Publication number
WO2007107812A1
WO2007107812A1 PCT/IB2006/002433 IB2006002433W WO2007107812A1 WO 2007107812 A1 WO2007107812 A1 WO 2007107812A1 IB 2006002433 W IB2006002433 W IB 2006002433W WO 2007107812 A1 WO2007107812 A1 WO 2007107812A1
Authority
WO
WIPO (PCT)
Prior art keywords
roller
conveyor belt
contact
contact elements
elements
Prior art date
Application number
PCT/IB2006/002433
Other languages
English (en)
Original Assignee
Cumberlege, John, Pear
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 Cumberlege, John, Pear filed Critical Cumberlege, John, Pear
Publication of WO2007107812A1 publication Critical patent/WO2007107812A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G39/00—Rollers, e.g. drive rollers, or arrangements thereof incorporated in roller-ways or other types of mechanical conveyors 
    • B65G39/02—Adaptations of individual rollers and supports therefor
    • B65G39/07—Other adaptations of sleeves

Definitions

  • This invention relates to a conveyor belt roller or pulley having a contact surface that is operatively contacted by a conveyor belt being supported or guided by what is typically an idler roller or driven by a drive pulley. More particularly, the invention relates to a conveyor belt roller or pulley wherein the contact surface is renewable.
  • roller as used hereinafter is intended to Include both freely rotatable idler rollers; as well as drive pulleys or drums and tail pulleys or drums; as well as any other guide or support rollers or pulleys that contact the surface of a belt conveyor in use,
  • a conveyor belt roller of generally cylindrical shape and having its own outer surface an a separate contact surface radially outwards thereof for operative engagement by a conveyor belt in association with which the roller is used, the roller being characterized in that the contact surface is a composite surface made up of outwardly directed surfaces of a multitude of replaceable contact elements held in their operative relationship relative to the surface of the roller by mechanical attachment means that physically engage the elements to maintain them in cooperating relationship with respect to the roller.
  • replaceable contact elements to be moulded or extruded polymeric elements that may have a friction affording surface property or, alternatively, a low friction property according to the purpose for which the roller is to be employed; and for the roller itself to have a cylindrical structural wall defining said outer surface and in relation to which the contact elements are in contact or in close proximity such that in use, the contact elements are urged into contact with such outer surface in consequence of contact between a conveyor belt and the outwardly directed surfaces of the contact elements.
  • the contact elements assume the form of circular or polygonal cross-sectioned cylindrical elements arranged in a required pattern over the surface of the roller.
  • the elements may have a squat stem portion force fitted into an aperture in a retainer fixed to the roller such that the apertures are spaced radially from the outer surface of the roller and wherein the elements are retained in position by mechanical engagement of the periphery of the aperture with a stem portion of an element.
  • a contact element may assume the form of a cap that is force fitted over a headed retainer element secured to the outer surface of the roller itself.
  • the contact elements assume the form of strips extending longitudinally along the length of the roller and held in association therewith by mechanical retainer means fixed, either permanently or releasably, to the roller itself.
  • Figure 1 is a schematic isometric view of one form of conveyor belt roller according to the invention.
  • Figure 2 is a front elevation of one specific arrangement of roller of the general nature illustrated in Figure 1 ;
  • Figure 3 is an exploded isometric view showing the detail of one of the retainer sections and associated contact elements
  • Figure 4 is a cross-section of part of the periphery of a roller having retainer sections and contact elements of the type illustrated in Figure 3;
  • Figure 5 is an elevation similar to Figure 2 showing two variations of retain as, one on each side of Figure 2;
  • Figure 6 is an end view of a roller illustrating the general principle of an apertured retainer member spaced from the roller surface;
  • Figure 7 is a development of a roller surface showing one alternative pattern of contact elements;
  • Figure 8 is a development of a roller surface showing a further alternative pattern of contact elements
  • Figure 9 is a cross-section through a retainer member showing an alternative configuration of contact element
  • Figure 10 is a cross-section through a retainer member showing a further alternative configuration of contact element
  • Figure 11 is a schematic isometric view illustrating an individual retainer member for attachment to a roller surface and its cooperating contact element
  • Figure 12 illustrates, in schematic isometric view, a variation ' in which "the container element is in the form of a cap to be retained on an individual cooperant retainer element fixed to a roller surface;
  • Figure 13 is a schematic isometric view illustrating the second variation of the invention indicated above in which the contact elements are in the form of elongate strips;
  • Figure 14 is an end view of one embodiment of the second variation of the invention illustrated in general terms in Figure 13;
  • Figure 15 is an end view of a second embodiment of the second variation of the invention illustrated in general terms in
  • Figure 1 illustrates the general arrangement of the first variation of the invention indicated above.
  • a conveyor belt roller (1) of generally cylindrical shape has formed on the outside surface thereof a contact surface (2) for operative engagement by a conveyor belt in association with which the roller is to be used.
  • the contact surface is a composite surface made up of the outwardly directed surfaces of a multitude of replaceable contact elements (3) that stand proud of the adjacent surface of the roller or retainer means whereby the container elements are held in association with the roller.
  • the contact elements (3) may be of squat right circular cylindrical shape that provides a stem (4) that operatively extends into a cooperating aperture (5) in the raised web (6) of an inverted channel shaped retainer section (7) extending parallel to the axis of
  • a series of the retainer sections is secured to the outer surface of the roller itself so as to substantially cover the entire surface of the roller, as illustrated most clearly in Figure 2.
  • These retainer sections can conveniently be secured to the metal surface of the roller by forming welds (8) on the inside of the flanges of the channel shaped retainer sections with access being obtained by way of the apertures themselves in order to achieve this.
  • contact elements Mechanical attachment of the contact elements in position in the apertures is achieved by virtue of a somewhat elastomeric or deformable nature of the contact elements that are conveniently made of a suitable rubber, polyurethane, or other polymeric plastics material having the required surface properties for a relevant application.
  • the material from which the contact elements is made enables them to be moulded such that the stem is oversized to an extent that enables it to be force fitted into the aperture, typically utilizing a hammer, and to be removed similarly by using force, typically by screwing into a contact element a screw threaded tool (9) having a pronounced sharp flight such that the free end of the tool engages the outer surface of the roller and thereafter carries the element up the flight and out of the aperture by force.
  • the contact element may have a friction affording surface in application to drive pulleys, or any other pulleys, and a low friction the property for pulleys that do not require traction to drive a conveyor belt.
  • the arrangement is that the inner end of the stem contacts, and is supported by, the outer surface of the roller when a conveyor belt contacts the contact surface, in use.
  • the contact elements have a head (10) at the outer end and this head is spaced outwards from the web (6) of the retainer sections when the stem contacts the outer surface of the roller itself.
  • a roller constructed as described above will operate effectively with the spaces provided between adjacent contact elements forming an effective drainage arrangement for water to thereby avoid any planing of the conveyor belt on the outer surface of the roller.
  • the individual elements When it is required to renew some or all of the contact elements, the individual elements may be removed in the manner indicated above, or in any other way, and replaced by new contact elements.
  • the arrangement is such that contact elements need only be replaced in positions of greater wear which can also save considerably on costs.
  • the replacement procedure can be conducted on site without the roller even be removed from its operative installation. The consequence is a substantial saving in time, and, accordingly, downtime that may otherwise have been occasioned by a total removal of the roller and processing by the prior art method described above. Still further, it is to be noted that the replacement of the contact elements can be carried out using a relatively low level of skill and, accordingly, less costly labour than would be necessary for the invention of a conventional repair procedure.
  • retainer section described above may be replaced by numerous other forms of retainers.
  • circumferentially extending strips (11) may be use for the purpose of providing apertures for receiving the container elements, such strips also being held in spaced radial relationship relative to the outer surface of the roller itself.
  • Numerous mechanical arrangements can be contrived and numerous different mechanical fastening arrangements can be provided to hold such strips in their operative position.
  • Figure 5 also illustrates, at the left-hand side thereof, the use of circumferentially extending straps (12) for holding the aperture providing strips or plates in position.
  • Figure 6 illustrates the general arrangement in which a circumferentially extending strut or plate (13) is spaced radially outwards from the outer surface of a roller (14) with the elements passing through the plate by way of the apertures.
  • the pattern in which the elements are arranged over the surface of the roller can be varied widely.
  • the elements are arranged in longitudinally extending rows and circumferentially extending columns such that they form a cylindrical square grid pattern.
  • the pattern could be varied widely.
  • the elements (15) in each row could be staggered relative to those of adjacent rows so that the rows could be closer together.
  • the contact elements (16) could be arranged to conform to a chevron type of pattern, as illustrated in Figure 8.
  • the contact elements themselves may be of many different shapes, such as polygonal cross-sectioned cylindrical elements arranged in a required pattern over the surface of the roller.
  • a dovetail shape of head (19) may be provided for cooperation with a complementarity shaped aperture (21) in a longitudinally extending bar (22).
  • Figure 11 illustrates an arrangement in which individual retainer elements (23) are provided to be welded to the outer surface of a roller and to receive cooperant individual contact elements (24).
  • Figure 12 illustrates a further variation in which the contact element assumes the form of a cap (25) that is force fitted over a headed retainer element (26) secured to the outer surface of the roller itself, for example by means of a screw (27).
  • the periphery of the skirt of the cap can be provided with a steel reinforcing ring (28), optionally of spring steel, for retaining the cap on the retainer element.
  • the contact elements (29) may assume the form of strips extending longitudinally along the length of the roller and held in association therewith by mechanical retainer means fixed, either permanently or releasably, to the roller itself.
  • arcuate cross-sectioned strips (30) that are made to approximately conform to the outer surface of the roller (31) have grooves (32) in their edges that receive a common key (33) that it shares with the adjacent edge of the adjacent strip.
  • the keys are secured to the roller using fasteners such as screws (34) or any form of clip.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)

Abstract

Rouleau (1) de bande transporteuse possédant une forme généralement cylindrique et présentant une surface extérieure propre et une surface de contact distincte (2) maintenue radialement à l'écart de celle-ci en vue de venir au contact fonctionnel d'une bande transporteuse à laquelle le rouleau est associé. La surface de contact est une surface composite constituée de surfaces orientées vers l'extérieur comportant une pluralité d'éléments de contact remplaçables (3, 17, 24, 25, 29, 30, 36) maintenus en relation fonctionnelle avec la surface du rouleau par des moyens de fixation mécanique (7, 12, 22, 23, 26, 33, 35) qui viennent physiquement au contact desdits éléments pour les maintenir en coopération avec le rouleau. Les éléments de contact sont au contact ou à proximité immédiate de la surface extérieure propre de façon à être comprimés au contact de celle-ci et à mettre ainsi la bande transporteuse au contact de leurs surfaces orientées vers l'extérieur.
PCT/IB2006/002433 2006-03-20 2006-09-05 Rouleau ou poulie de bande transporteuse presentant une surface de contact renouvelable WO2007107812A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ZA200602278 2006-03-20
ZA2006/02278 2006-03-20
ZA2006/03607 2006-05-08
ZA200603607 2006-05-08

Publications (1)

Publication Number Publication Date
WO2007107812A1 true WO2007107812A1 (fr) 2007-09-27

Family

ID=37646813

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2006/002433 WO2007107812A1 (fr) 2006-03-20 2006-09-05 Rouleau ou poulie de bande transporteuse presentant une surface de contact renouvelable

Country Status (1)

Country Link
WO (1) WO2007107812A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11331949B2 (en) 2018-09-19 2022-05-17 Goodrich Corporation Tire having replaceable discrete traction elements

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4284409A (en) * 1979-08-27 1981-08-18 Randtron Replaceable pulley lagging
AU534291B2 (en) * 1978-12-26 1984-01-19 Nippon Tsusho Co. Ltd. Lagging body for belt conveyor pulley
EP0239660A1 (fr) * 1984-04-06 1987-10-07 Masaichi Kawamoto Structure avec revêtement de renforcement
US4832669A (en) * 1987-03-30 1989-05-23 Holz William G Tab and recess lagging segment for pulley and method of mounting the same
EP0849196A1 (fr) * 1996-12-20 1998-06-24 Technic Gum Garniture pour tambours ou poulies d'entraínement ou de renvoi pour bandes transporteuses
DE20021355U1 (de) * 2000-12-18 2001-03-22 Stahlgruber Gruber & Co Otto Verschleißfester Belag mit Reibelementen
US20020046929A1 (en) * 1999-12-30 2002-04-25 Flexible Steel Lacing Company Lagging system for conveyor belt pulleys

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU534291B2 (en) * 1978-12-26 1984-01-19 Nippon Tsusho Co. Ltd. Lagging body for belt conveyor pulley
US4284409A (en) * 1979-08-27 1981-08-18 Randtron Replaceable pulley lagging
EP0239660A1 (fr) * 1984-04-06 1987-10-07 Masaichi Kawamoto Structure avec revêtement de renforcement
US4832669A (en) * 1987-03-30 1989-05-23 Holz William G Tab and recess lagging segment for pulley and method of mounting the same
EP0849196A1 (fr) * 1996-12-20 1998-06-24 Technic Gum Garniture pour tambours ou poulies d'entraínement ou de renvoi pour bandes transporteuses
US20020046929A1 (en) * 1999-12-30 2002-04-25 Flexible Steel Lacing Company Lagging system for conveyor belt pulleys
DE20021355U1 (de) * 2000-12-18 2001-03-22 Stahlgruber Gruber & Co Otto Verschleißfester Belag mit Reibelementen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11331949B2 (en) 2018-09-19 2022-05-17 Goodrich Corporation Tire having replaceable discrete traction elements

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