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WO1997011293A1 - Perfectionnement apporte a des roues, telles que des roues a chaine, des poulies et elements analogues - Google Patents

Perfectionnement apporte a des roues, telles que des roues a chaine, des poulies et elements analogues Download PDF

Info

Publication number
WO1997011293A1
WO1997011293A1 PCT/SE1996/000524 SE9600524W WO9711293A1 WO 1997011293 A1 WO1997011293 A1 WO 1997011293A1 SE 9600524 W SE9600524 W SE 9600524W WO 9711293 A1 WO9711293 A1 WO 9711293A1
Authority
WO
WIPO (PCT)
Prior art keywords
wheel
discs
individual
disc
shaft
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.)
Ceased
Application number
PCT/SE1996/000524
Other languages
English (en)
Inventor
Niclas Johansson
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.)
FB KEDJOR AB
Original Assignee
FB KEDJOR 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 FB KEDJOR AB filed Critical FB KEDJOR AB
Priority to AU60190/96A priority Critical patent/AU6019096A/en
Publication of WO1997011293A1 publication Critical patent/WO1997011293A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/32—Friction members
    • F16H55/36—Pulleys
    • F16H55/42—Laminated pulleys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/30—Chain-wheels

Definitions

  • wheels such as e.g. chain wheels, pulleys and the like
  • the present invention relates to an improved wheel, adapted to be mounted on a shaft, preferably a rotary jour ⁇ nalled shaft.
  • One embodiment of the invention is concerned with con ⁇ veyor chain wheels, particularly conveyor chain wheels of the kind which is adapted to engage with a chain, such as a con ⁇ veyor chain, in order to support, guide and possibly also drive the same.
  • the invention is particularly concerned with a conveyor chain wheel having an essentially circular wheel disc, which has circumferentially spaced teeth for engagement with a conveyor chain and a central bore for monting of the wheel on a shaft and which preferably, at least on one side, is provided with a hub, similarly with a bore for mounting on the shaft.
  • Another embodiment of the wheel according to the inven ⁇ tion has the shape of a V-belt pulley comprising a central hub and a surrounding wheel rim having one or more V-belt grooves for V-belts.
  • the object of the present invention has been to provide a wheel, being either a conveyor chain wheel or the like or a V- belt pulley, that exhibits advantages both with respect to the manufacture and the operation and with respect to environmen ⁇ tal requirements as compared to prior art wheels of this cate ⁇ gory.
  • a further object of the invention has been to provide a wheel which is easier to mount at the initial installation than prior art wheels of the category in question and which, furthermore, is easier to remove and replace than the prior art wheels of the category in question.
  • a still further object of the invention particularly in connection with its application to V-belt pulleys which nor ⁇ mally operate at comparatively high speeds, such as of the order of 750 r.p.m. or higher, viz. up to about 3000 r.p.m., has been to provide a V-belt pulley which is very homogenous with respect to the material structure, so that the pulley may operate very balanced and also, if required, may be adjusted with respect to the balance, e.g. by removing certain portions or by the addition of balancing elements.
  • the first mentioned object is achieved by the wheel ac ⁇ cording to the invention which is characterized essentially in that the wheel comprises two or more individual, separately manufactured and essentially circular disc portions, which are axially clamped together to form the wheel disc of the wheel.
  • one or more of the individual discs is made from a diffferent material than that of the other discs.
  • the seond one of the above mentioned objects of the in ⁇ vention is achieved in that the individual discs are divided along a diametric division plane which intersects the rotatio ⁇ nal axis of the discs.
  • the wheel is provided with at least one hub on one side of the wheel disc it is preferred that also the hub comprises individual disc portions which are axially clamped together with each other and with the remainder of the wheel disc.
  • the wheel is provided with a key slot which is open towards the shaft bore of the wheel it is preferred that the divisional plane of one or more of the individual discs is angularly off-set in relation to the divisional plane of one or more of the adjacent discs, so that the individual discs may be mounted on a shaft in different angular positions whe ⁇ reas their respective key slots assume one and the same an ⁇ gular positions.
  • the individual discs or disc portions, respectively, are individually cut by means of a computer controlled laser cutting device.
  • the wheel according to the invention in the shape of a V-belt pulley having a central hub, somprising hub disc portions, and an outermost wheel rim, comprisin rim portions, which rim portion is connected to the hub by means of two or more spokes, pre ⁇ ferably formed in centrally located metal sheets only, whe ⁇ rein, if necessary, both the hub disc portions, the wheel rim portions and the spokes are axially clamped together .
  • the thickness of the sheet metal is preferably chosen so, that each V-belt contacts only one metal sheet on each side in order to avoid wearing junctures on each side.
  • Figure 1 shows the chain wheel in an end view and figure 2 shows the chain wheel in a diametric section, parallel to the central axis of the wheel; figure 3 shows a V-belt pulley in an end view and figure 4 shows the Velt pulley in figure 3 as seen in a diametric section parallel to the central axis of the V-belt.
  • the chain wheel shown as an example in fig. 1 and 2 comp ⁇ rises an essentially circular wheel disc 10, which around the periphery thereof has nine teeth 11 that are designed in a suitable manner for engagement with a chain, not shown, such as a conveyor chain.
  • the chain wheel 10 compri ⁇ ses four essentially circular discs 10A, 10B, IOC and 10D, but it could, in practise, comprise more or fewer discs than four.
  • the numberof discs 12A, 12B etc is determined from case to case in dependence of the demands in each case.
  • a hub which comprises a number of essentially circular discs 12A, 12B etc.
  • the number of discs 12A, 12B of the hub is determined from case to case in accordance with the demands in each case.
  • the chain wheel according to the invention comprises a plurality of individual discs
  • the possibility is offered to manufacture such discs, e.g. the outermost ones, which may be subjected to a severe wear or a tough mechanical influence by blows or strokes, from a hard and resistant mate ⁇ rial, whereas such discs, that are not apt to be subjected to wear or a tough mechanical influence, may be manufactured from a softer material, such as e.g. certain plastics.
  • the same considerations apply to the individual discs 12A, 12B etc of the hub 12.
  • the discs 10A, 10B, IOC are connected to each other by means of a plurality of screws 13 (eight in the example) which extend parallel to the rotational axis C of the chain wheel, in the example in the shape of screws having countersunk heads with internal hexagonal recesses 14, which screws extend through all of the discs 10A, 10B, IOC, and 10 D.
  • the discs 12A, 12B etc. which jointly form the hub, generally denoted 12, are connected to each other by means of a number of screws 15 (in the example four in number) which extend parallel to the rotational axis C of the chain wheel, in the example in the shape of screws having countersunk heads with internal hexagonal recesses 16, which screws extend through all discs 12A, 12B etc of the hub.
  • Both the wheel disch, generally denoted 10, and the hub, generally denoted 12 have a central bore 17 to receive a shaft, and an axial key slot 18 which opens towards the shaft bore and is adapted to receive an ordinary key, not shown.
  • the discs 10A, 10B, 10C and 10D are divided into two essentially circle sector shaped portions 10A' ch 10A", respectively, wherein the line DL of division between the two portions extends diametrically over the respective disc and extends through the centre of the disc.
  • the line of division DL of at least some of the individual discs is angularly off-set e.g. a quarter of a full turn in relation to the line of division of the other discs, which results in a possibility to mount the discs 10A- 10D in such a manner that an "uninterrupted" portion of one disc will cover and bridge the line of division of adjacent discs.
  • both the individual discs 10A-10D and the hub discs 12A, 12B are each provided with two axially exten ⁇ ding bores 19, into which guide pins, not shown, may be in ⁇ serted.
  • Such bores 19 and the corresponding pins may be manu ⁇ factured with much closer tolerances than the shaft bore 17 and the key slot 17 as well as the bores for the screws 13, 15, and thus they afford an increased precision to the chain wheel as a hole, so that the teeth will be situated exactly in flush with each other.
  • the V-belt pulley 30 shown as an example in figs 3 and 4 is built up in principally the same way as the chain wheel in fig. 1 and 2 and comprises three individual, central sheet metal discs 21, 22, 23, and likewise individual, radially innermost and outermost rim discs 24, 25 which are clamped together by means of axially acting clamping screws 25, 27, 28 in the corresponding way as has been described above with respect to the chain wheel 10.
  • the outer peripheries of the rim discs 25 are designed to form V-bel grooves and the thickness of these rim discs is preferably such that the V-belts will rest only on the sides of the grooves in question.
  • the central plates 21, 22, 23, need not be disc shaped but may be designed to form two or more spokes.
  • V-belt grooves planes of divi ⁇ sion, the mutual angular off-set of the planes of division, y, guiding pins etc. are applicable also to V-bel pulleys of the kind as generally shown in figs. 3 and 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pulleys (AREA)
  • Gears, Cams (AREA)

Abstract

L'invention concerne une roue présentant un moyeu central ainsi qu'un alésage central destiné au montage de la roue sur un axe, qui comprend au moins deux disques individuels, essentiellement circulaires, fabriqués séparément et bloqués ensemble axialement afin de former le disque de roue. L'un au moins de ces disques est fait d'un matériau différent de celui des autres disques, et les disques individuels sont divisés selon un plan diamétral coupant leur axe de rotation. Un moyeu, de préférence situé sur un côté du disque de roue, comprend également des disques individuels bloqués ensemble axialement et également bloqués au reste du disque de roue. Dans une roue présentant une rainure de clavette s'ouvrant en direction de l'alésage de l'axe, le plan de division d'au moins l'un des disques individuels est, de préférence, décalé de façon angulaire par rapport au plan de division de l'un au moins des disques adjacents, de manière à ce que l'on puisse monter les disques individuels sur un axe dans des positions angulaires différentes, tandis que les rainures de clavettes respectives de ces disques prennent une seule et même position angulaire. Les disques ou portions de disque individuels sont respectivement et individuellement coupés à l'aide d'un dispositif de coupe laser commandé par ordinateur. Cette roue peut également être conçue pour servir en tant que poulie à gorge pour courroie trapézoïdale.
PCT/SE1996/000524 1995-09-21 1996-04-24 Perfectionnement apporte a des roues, telles que des roues a chaine, des poulies et elements analogues Ceased WO1997011293A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU60190/96A AU6019096A (en) 1995-09-21 1996-04-24 An improvement in wheels, such as e.g. chain wheels, pulleys and the like

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9503276-9 1995-09-21
SE9503276A SE507163C2 (sv) 1995-09-21 1995-09-21 Anordning vid kedjehjul

Publications (1)

Publication Number Publication Date
WO1997011293A1 true WO1997011293A1 (fr) 1997-03-27

Family

ID=20399553

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1996/000524 Ceased WO1997011293A1 (fr) 1995-09-21 1996-04-24 Perfectionnement apporte a des roues, telles que des roues a chaine, des poulies et elements analogues

Country Status (3)

Country Link
AU (1) AU6019096A (fr)
SE (1) SE507163C2 (fr)
WO (1) WO1997011293A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2514692A1 (fr) 2011-04-20 2012-10-24 HAUNI Maschinenbau AG Roue à rayons

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2321576A1 (de) * 1973-04-28 1974-11-14 Porsche Ag Zahnrad
DE3026685A1 (de) * 1980-07-15 1982-02-11 Rudolf Prof.Dr.-Ing. 5100 Aachen Koller Zahnrad
EP0561478A1 (fr) * 1992-03-20 1993-09-22 MCC Nederland B.V. Roue à chaîne divisible

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2321576A1 (de) * 1973-04-28 1974-11-14 Porsche Ag Zahnrad
DE3026685A1 (de) * 1980-07-15 1982-02-11 Rudolf Prof.Dr.-Ing. 5100 Aachen Koller Zahnrad
EP0561478A1 (fr) * 1992-03-20 1993-09-22 MCC Nederland B.V. Roue à chaîne divisible

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2514692A1 (fr) 2011-04-20 2012-10-24 HAUNI Maschinenbau AG Roue à rayons
DE102011007813A1 (de) 2011-04-20 2012-10-25 Hauni Maschinenbau Ag Speichenrad

Also Published As

Publication number Publication date
SE9503276L (sv) 1997-03-22
SE9503276D0 (sv) 1995-09-21
SE507163C2 (sv) 1998-04-20
AU6019096A (en) 1997-04-09

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