EP0920395A2 - Courroie pourvue de nervures d'entrainement destinees a faciliter l'auto-adaptation au transporteur - Google Patents

Courroie pourvue de nervures d'entrainement destinees a faciliter l'auto-adaptation au transporteur

Info

Publication number
EP0920395A2
EP0920395A2 EP98902717A EP98902717A EP0920395A2 EP 0920395 A2 EP0920395 A2 EP 0920395A2 EP 98902717 A EP98902717 A EP 98902717A EP 98902717 A EP98902717 A EP 98902717A EP 0920395 A2 EP0920395 A2 EP 0920395A2
Authority
EP
European Patent Office
Prior art keywords
belt
ribs
conveyor system
set forth
rollers
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Withdrawn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
EP98902717A
Other languages
German (de)
English (en)
Inventor
D. Brink Arnold
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.)
Morrison Co Inc
Original Assignee
Morrison Co Inc
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 Morrison Co Inc filed Critical Morrison Co Inc
Publication of EP0920395A2 publication Critical patent/EP0920395A2/fr
Withdrawn legal-status Critical Current

Links

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
    • B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
    • B65G15/60—Arrangements for supporting or guiding belts, e.g. by fluid jets
    • B65G15/64—Arrangements for supporting or guiding belts, e.g. by fluid jets for automatically maintaining the position of the belts
    • 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
    • B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
    • B65G15/30—Belts or like endless load-carriers
    • B65G15/32—Belts or like endless load-carriers made of rubber or plastics
    • B65G15/42—Belts or like endless load-carriers made of rubber or plastics having ribs, ridges, or other surface projections
    • 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
    • B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
    • B65G15/30—Belts or like endless load-carriers
    • B65G15/56—Belts or like endless load-carriers with edge-protecting or reinforcing means
    • 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
    • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/06—Articles and bulk

Definitions

  • the invention relates in general to belts used on conveyor systems, and more specifically to a belt having ribs to reduce the surface area of the belt contacting the rollers of a conveyor system during a training period.
  • New belts installed in conveyor systems typically require a breaking-in or training period before they operate efficiently within the system.
  • a new belt tends to aggressively adhere to the rollers of the conveyor system producing lateral coplanar forces.
  • mechanical tracking aids used to train and track the belt cannot adequately compensate for these forces resulting in potential damage to the belt and/or conveyor system.
  • the present invention in a broad aspect addresses the problems and shortcomings mentioned above. More specifically, the invention comprises a belt with a body having an inner surface, an outer surface, and a first set of longitudinal ribs disposed on the inner surface of the belt. Normal frictional wear between the ribs and the rollers in a conveyor system results in the eventual diminishing of the height of the ribs with respect to the body, leaving the inner surface of the body of the belt essentially in full contact with the rollers of the conveyor system.
  • the belt includes a second set of ribs disposed on the outer surface of the belt. These height of these ribs also diminishes with respect to the body leaving the outer surface of the body of the belt essentially in full contact with the rollers of the conveyor system.
  • the sets of ribs may comprise two ribs running along the edges of the belt. A wider belt may require additional ribs located between the two edge ribs.
  • the belt may be used in a system of rollers and training guides.
  • the training guides function to maintain the alignment of the belt with respect to the rollers.
  • Figures la through Id are pictorial views of belts of the invention.
  • Figure 2a is a top view of a portion of a conveyor system showing a roller, belt, and a training guide.
  • Figure 2b is a cross-section of Figure 2a taken along line AA.
  • Figure 3a and 3b are end views of a conveyor system before and after belt training.
  • Figure 4 is a side view of a system of rollers, showing a possible belt path.
  • Figures 5a through 5c are pictorial views of alternate rib designs for belts of the invention.
  • the invention is not limited in its application to the details of construction and the arrangements of the components set forth in the following description or illustrated in the drawings. The invention is capable of other embodiments or of being practiced or carried out in various ways. Also, it is to be understood that the terminology and phraseology employed herein is for purpose of description and illustration and should not be regarded as limiting.
  • Like reference numerals are used to indicate like components.
  • FIG. la a belt 10 is shown.
  • a pair of longitudinal inner ribs 12, 14 are shown on the inner surface 16 of the belt body 18 located near the edges 20, 22 of the belt.
  • a third inner rib 23 is located on the inner surface 16 intermediate the two inner ribs 12, 14.
  • FIG. lc shows a belt similar to that of FIG. la including an additional set of outer ribs 24, 26 disposed on the outer surface 28 of the belt body 18 near the edges 20, 22.
  • FIG. Id shows a belt similar to that of FIG. lb including outer ribs 24, 26 and a third outer rib 30 intermediate the two outer ribs 24, 26.
  • New belts installed in conveyor systems typically require a breaking-in or training period before they operate efficiently within the system.
  • a new belt tends to aggressively adhere to the rollers of the conveyor system producing lateral coplanar forces.
  • mechanical tracking aids that are used to train and track such belts cannot adequately compensate for these forces resulting in the potential for damage to the belt and/or the conveyor system.
  • FIGS. 2a, 2b, 3a, and 3b The belt of FIG. lc will be used for illustration.
  • FIG. 2a and FIG. 2b show a portion of a conveyor system 31 comprising a roller 32 and a training guide 34.
  • the belt 10 passes over the roller 32.
  • the training guide 34 maintains the position of the belt 10 with respect to the roller 32.
  • the ribs 12, 14 contact the roller surface 36. Because the ribs extend above the inner surface 16, a portion of the belt body 18 does not contact the roller surface 36. In effect, the surface area of the belt 10 that contacts the roller surface 36 is reduced as compared to a belt without ribs.
  • FIG. 3a shows a side view of a belt 10 passing over a roller 32.
  • the ribs 12, 14 contact the roller surface 36.
  • training guide 34 is not illustrated.
  • the ribs 12, 14 may be made of the same material as the belt.
  • the ribs 12, 14 may be made of a material that has a lesser resistance to wear as compared to the body 18 of the belt. In either case, the height of the ribs 12, 14 will be gradually diminished due to normal frictional wear such that, for practical purposes, the inner surface 16 of the belt is in contact with the roller surface 36 as shown in FIG. 3b.
  • the belt body 18 is a conveyor or round hay baler belt made from a multiplied carcass of thermoplastic with fabric reinforcement (e.g. nylon, polyester, or the like) and a synthetic rubber cover.
  • the ribs 12, 14 are made of a similar rubber compound as the covering rubber, or if increased wear is necessary, a bondable, yet different compound may be used.
  • the body 18 may comprise a base polymer such as urethane and the ribs 12, 14 may be made from a base of ethylene-propylene diene monomer (EPDM) having a lower resistance to wear.
  • EPDM ethylene-propylene diene monomer
  • synthetic rubber such as styrene-butadiene rubber (SBR) can have a reduced abrasion resistance due to compounding. Extending the SBR compound with processing oil or reducing the amount of SBR polymer in the recipe can each reduce the abrasion resistance.
  • the ribs 12, 14 may be formed as an integral part of the body 18 of the belt by applying pressure to force the covering material into a mold and heating the material in a vulcanizing process.
  • the time period required to essentially wear away the ribs 12, 14 is preferably greater than the time period required to train the belt 10 on the conveyor system 31.
  • FIG. 4 shows an example of portion of a conveyor system 31 having a plurality of rollers 32. Due to the serpentine nature of the conveyor system 31, both the inner surface 16 and the outer surface 28 interface with the rollers 32. Accordingly, ribs 12, 14 are present on the inner surface 16 and ribs 24, 26 are present on the outer surface 28.
  • the training process of the belt 10 is essentially the same as the training process described above. Over time, the height of the ribs 12, 14, 24, 26 will diminish due to normal frictional wear, eventually leaving the inner surface 16 and the outer surface 28 in contact with the rollers 32.
  • FIG. 5a through FIG. 5c show examples of alternate rib shape embodiments of the invention.
  • the shape of the ribs 12, 24 shown in FIG. 5a is generally rectangular.
  • FIG. 5b shows ribs 12, 24 having alternating ridges 38 and corresponding channels 40 running the longitudinal length of the rib.
  • FIG. 5c shows ribs 12, 24 generally following a longitudinal path along the length of the belt 10. Along that longitudinal path, the ribs 12, 24 follow a wavy pattern.
  • wavy is defined as a path comprising alternating lateral divergences from the generally longitudinal path.
  • a curved, wavy pattern is shown, but other divergent paths, for example a zigzag path, are contemplated and within the scope of the term wavy.
  • the belts 10 having two ribs in each set are preferably used in applications where the belt 10 is less that about 16 inches in width. In cases where the width of the belt 10 is greater than about 16 inches additional ribs are preferred.
  • the belts 10 shown in FIG. lb and FIG. lc are examples of such belts.
  • One or more ribs 23, 30 placed in positions intermediate the ribs 12, 14, 24, 26 near the edges 20, 22 are contemplated depending on the width of the belt.
  • each of the ribs 12, 14, 23, 26, 26, 30 is about 0.025 inches above the respective inner surface 16 or outer surface 28.
  • the width of each of the ribs 12, 14, 23, 26, 26, 30 is about 0.05 to 0.1 times the width of the belt 10 in preferred embodiments.
  • Other rib heights and widths are contemplated depending on the design requirements of the particular conveyor system.

Abstract

Cette courroie (10) pour transporteur est pourvue de nervures (12, 14, 23, 24, 26, 30) servant d'auxiliaires d'entraînement. Le dispositif de l'invention consiste en une courroie (10) dont le corps (18) est constitué d'une face intérieure (16) et d'une face extérieure ainsi que d'un premier jeu de nervures longitudinales (12, 14, 23) disposées sur la face intérieure (16). Ces nervures sont destinées à alléger l'aire de surface de la courroie venant au contact d'un cylindre (32) lors de l'entraînement de la courroie. En conséquence, cette nouvelle courroie adhère moins fortement aux cylindres du transporteur, du fait d'une diminution des forces coplanaires susceptibles, en outre, d'endommager la courroie et/ou le transporteur. La hauteur des nervures par rapport au corps se réduit avec le temps en raison d'une usure normale de frottement. Dans certains modes de réalisation, la courroie possède un second jeu de nervures (24, 26, 30) disposées sur la face extérieure (28) et l'usure normale de frottement réduit également, dans ce cas, la hauteur des nervures par rapport au corps. Les jeux de nervures sont susceptibles de comporter deux nervures (12, 14, 24, 26) courant le long des bords de la courroie. Il peut être nécessaire, dans le cas d'une courroie de plus grande largeur, d'ajouter des nervures supplémentaires (23, 30) venant se placer entre les deux nervures de bordure. On peut employer cette courroie dans des systèmes à cylindres (32) et guides d'entraînement (34). Ces derniers servent à maintenir la courroie dans l'alignement des cylindres.
EP98902717A 1997-02-04 1998-01-26 Courroie pourvue de nervures d'entrainement destinees a faciliter l'auto-adaptation au transporteur Withdrawn EP0920395A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US79491997A 1997-02-04 1997-02-04
US794919 1997-02-04
PCT/US1998/001427 WO1998033728A2 (fr) 1997-02-04 1998-01-26 Courroie pourvue de nervures d'entrainement destinees a faciliter l'auto-adaptation au transporteur

Publications (1)

Publication Number Publication Date
EP0920395A2 true EP0920395A2 (fr) 1999-06-09

Family

ID=25164089

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98902717A Withdrawn EP0920395A2 (fr) 1997-02-04 1998-01-26 Courroie pourvue de nervures d'entrainement destinees a faciliter l'auto-adaptation au transporteur

Country Status (5)

Country Link
EP (1) EP0920395A2 (fr)
AU (1) AU5930998A (fr)
CA (1) CA2251005A1 (fr)
NO (1) NO984626L (fr)
WO (1) WO1998033728A2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8276747B2 (en) 2007-06-29 2012-10-02 Habasit Ag Module for a modular belt and a driving sprocket for easy cleaning
WO2009003301A1 (fr) * 2007-06-29 2009-01-08 Habasit Ag Bande transporteuse continue
US8544637B2 (en) 2007-07-10 2013-10-01 Habasit Ag Continuous conveyor belt
DE102012103963A1 (de) * 2012-05-07 2013-11-07 Contitech Transportbandsysteme Gmbh Förderanlage mit verbessertem Energiebedarf
CN105366273A (zh) * 2015-11-17 2016-03-02 成都聚智工业设计有限公司 物流传送带

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3679044A (en) * 1971-01-13 1972-07-25 Goodrich Co B F Conveyor belt
DE2602613C3 (de) * 1976-01-24 1983-12-01 Karl 4130 Moers Hartmann Förderband mit gewellten Seitenwänden
US4899872A (en) * 1988-03-24 1990-02-13 Honda Sangyo Co., Ltd. Anti-weaving conveyor belt
DE3827822A1 (de) * 1988-08-16 1990-02-22 Rieter Ag Maschf Karde mit einem querband an ihrem ausgang
GB2264685A (en) * 1992-03-04 1993-09-08 Cable Belt Ltd Conveyor system with belts.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9833728A3 *

Also Published As

Publication number Publication date
WO1998033728A2 (fr) 1998-08-06
NO984626L (no) 1998-12-02
WO1998033728A3 (fr) 1998-11-05
CA2251005A1 (fr) 1998-08-06
NO984626D0 (no) 1998-10-02
AU5930998A (en) 1998-08-25

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