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WO2008153409A1 - Unité de guidage pour courroie transporteuse - Google Patents

Unité de guidage pour courroie transporteuse Download PDF

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Publication number
WO2008153409A1
WO2008153409A1 PCT/NO2008/000208 NO2008000208W WO2008153409A1 WO 2008153409 A1 WO2008153409 A1 WO 2008153409A1 NO 2008000208 W NO2008000208 W NO 2008000208W WO 2008153409 A1 WO2008153409 A1 WO 2008153409A1
Authority
WO
WIPO (PCT)
Prior art keywords
belt
roller
conveyor belt
roller holder
guidance device
Prior art date
Application number
PCT/NO2008/000208
Other languages
English (en)
Inventor
Kjell Arne Gaarden
Original Assignee
As Techno-Track
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 As Techno-Track filed Critical As Techno-Track
Publication of WO2008153409A1 publication Critical patent/WO2008153409A1/fr

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
    • B65G39/00—Rollers, e.g. drive rollers, or arrangements thereof incorporated in roller-ways or other types of mechanical conveyors 
    • B65G39/10—Arrangements of rollers
    • B65G39/12—Arrangements of rollers mounted on framework
    • B65G39/16—Arrangements of rollers mounted on framework for aligning belts or chains

Definitions

  • the present invention relates to a guidance device for a conveyor belt, which guidance device is arranged transverse to the belt's direction of travel and can guide the position of the belt in a lateral direction, and guide the belt's direction of travel.
  • the device according to the present invention is used to correct the belt path or belt movement of the belt over a plurality of supporting rollers in order to ensure that the belt is centered over the supporting rollers as a conveyor belt in operation is susceptible to lateral displacement away from a neutral position in its longitudinal direction.
  • the belt guidance unit can be employed in conveyor belts that move in one direction as well as in two opposite directions with only very slight alterations, and the basic constructional features of the belt guidance unit are substantially identical in the two operational situations.
  • the belt guidance unit according to the present invention is used for guiding conveyor belts particularly in processing plants for various types of materials in bulk format, such as granulated ores, etc.
  • a belt guidance unit for the above-mentioned tasks and areas of application should furthermore be simple and robust to operate while it must be easy to install and adjust before use.
  • the construction should furthermore be capable of being adapted to the existing conditions and loads either by employing different dimensions for the constructional parts or by being able to adjust the design of the constructional parts that are already installed in an existing system, such as, e. g., rollers, guides, mounting brackets, etc.
  • a device may be mentioned for conveyor belts that travel over rollers or supports, described in DE 174 491, which device corrects for lateral displacements that occur in the belt during operation, causing the belt to be returned to its neutral position.
  • a set of guide rollers for the conveyor belt is mounted on a plate, which is rotatably attached to the base.
  • To the rotatable plate is mounted an arm with a tie bar.
  • the arm may be articulated and rotatable about a pivot that is attached to the base.
  • To the tie bar are attached guide rollers, which move along the edge of the conveyor belt and which, in the event of lateral displacement of the belt, transfer the movement to the tie bar.
  • the movement is transferred to the lever arm, which in turn transfers the movement to the plate, thus causing the guide rollers'axes to be tilted and returning the conveyor belt to its neutral position.
  • the belt guidance unit described in NO 178 853 is a known solution of a similar type, but where the lever arm is rotatably attached both to the plate holding the guide rollers and the tie bar holding the guide rollers.
  • the lever arm is rotatably attached to a fixed point located at a distance from the rotatable attachments in the plate and the tie bar, and a rotatably parallel stay is mounted parallel to the lever arm, between the tie bar and a fixed base in the form of a beam, with the result that the tie bar always remains at right angles relative to the conveyor belt's centre line.
  • a reversible belt guidance unit for centring conveyor belts, which during operation are susceptible to a lateral displacement away from a neutral position, comprising a rotating mechanism which carries at least one guide roller for the conveyor belt, and which is rotatably mounted in a first fixed beam, which rotatable mounting is arranged about an axis that is perpendicular to the conveyor belt.
  • a first set of guide rollers abuts against the conveyor belt's lateral edges, thereby being displaced laterally depending on the conveyor belt's lateral displacement
  • the belt guidance unit comprises a first transfer mechanism for transferring the lateral displacement of the first set of guide rollers to the rotating mechanism, for rotating the guide roller to a position where it guides the conveyor belt towards the neutral position.
  • the belt guidance unit known from NO 178 853 provides a far smoother movement of the conveyor belt, resulting in less wear and a longer life for the belt.
  • the belt guidance unit from NO 306 708 is designed so as to work with conveyor belts that move in two opposite directions.
  • FR 2728248 describes guidance of a belt that moves over a roller. The guidance is directly towards the edge of the belt which can be seen from, inter alia, Fig. 2.
  • the arm 2 with the roller 1 abuts against the edge of the belt.
  • the arm also rests on a shaft 4 that is spring-loaded by the spring 3. In other words, there is a fixed connection between the roller 7 and the shaft 4, which in turn is subjected to spring loading.
  • US 251 1 194 also describes a solution comprising direct guidance of the belt where the wheels 9 and 1 1 on respectively the upper side and the underside of the belt form an angle relative to the longitudinal direction of the belt if the edge of the belt displaces the guiding device 17 with the wheel 19 towards the left (in Figure 3) as a result of the belt moving askew,
  • the present invention is a simple solution that can easily be mounted, is inexpensive to make and requires little maintenance. Accordingly, there is provided a guidance device for a conveyor belt according to the present invention as disclosed in claim 1 below. Alternative embodiments are disclosed in the subsequent claims.
  • two guidance devices may be combined such that together they are able to guide in both directions. This can be achieved by placing two guidance devices laterally inversed one after the other so that they guide in their respective directions, whilst the swing of the guidance device is limited in such manner that each guidance device can only guide in one direction. Together, the two guidance devices will thus guide the belt in their respective directions, thereby ensuring a centered positioning of the belt at all times.
  • Two different embodiments of a guidance device according to the present invention are further shown in the attached figures, in which:
  • Figure 1 is a perspective view of a guidance device in neutral position.
  • Figure 2 shows the guidance device in Figure 1 , seen from the side.
  • Figure 3 is a perspective view of the guidance device in Figure 1, seen from the opposite side.
  • Figure 4 is a perspective view of the guidance device in Figure 1 exploded into its individual components.
  • Figures 5 and 6 are perspective views of the guidance device in Figure 1 in respectively a first and a second extreme position, i.e., with fully corrected swing for guiding the conveyor belt.
  • Figure 7 shows an alternative embodiment of the roller holder where the roller is raised to a higher level.
  • FIGS 1-6 illustrate a guidance device according to the present invention for guiding a conveyor belt (not shown).
  • the guidance device consists of a roller 1 over which roller the conveyor belt runs in its longitudinal direction.
  • the roller 1 is rotatably mounted on a supporting shaft 2 having a first and a second end.
  • This shaft thus functions in this embodiment as a roller holder in that it supports and/or holds the roller.
  • the shaft is further secured to a pivot bearing 3 at its first end.
  • This pivot bearing permits the roller holder, which in this embodiment is the shaft 2, to rotate essentially in the plane of the conveyor belt, and the roller 1 may thus assume different angular positions relative to the longitudinal direction of the conveyor belt, whereby the roller will be able to guide the course and direction of the conveyor belt, and thus also the lateral position of the conveyor belt on the roller.
  • an elastic element which in this embodiment is a spring 5, between the roller holder (the shaft 2) and a fixed point, which is this embodiment is the hook 6, which in turn is secured to the bracket 15 which holds the device into the conveyor belt arrangement.
  • the length of the hook 6 can be adjusted by the nut 7 so that the spring can be tightened or slackened by adjusting the distance between the attachment 4 on the roller holder and the fixed point 6.
  • the spring is tensioned and it will exert a greater force in order to turn the roller holder in the pivot bearing 3.
  • This adjustment will be capable of being carried out to accommodate different belt types and loads on the belt whilst it is adapted for ensuring regular movement of the belt over the guidance device.
  • the roller holder which in this embodiment is the shaft 2, is further secured to the pivot bearing which is in turn stationarily fixed to the fastening bracket 15 via a non-rotating shaft or rod 17.
  • the shaft 2 with the roller 1 will turn in the direction of rotation essentially in the conveyor belt's plane in the pivot bearing 3 whilst the shaft 2 is spring-loaded by the spring 5.
  • rollers or wheels 8 which rest on a planar surface 9 and which move along this surface 9. This movement will follow the outer edge in a circle with a radius corresponding to the distance from the pivot bearing 3 to the wheels 8.
  • the surface 9 must therefore be wide enough for this arcuate movement.
  • an upper supporting surface 10 above the wheels 8. This is an alternative that is indicated in this embodiment.
  • a distance spacer 11 having an essentially transverse spacer 12 that holds a guide device 13.
  • This guide device is shown in the figures as a drum or roller which abuts against the side edge of the conveyor belt. If the conveyor belt moves towards this guide device 13 with force, caused by the conveyor belt moving askew towards the guide device 13, the said guide device 13 will turn the roller holder about the pivot bearing 3 so that the roller 1 is skewed relative to the belt's direction of travel, on a par with the force exerted by the spring 5 on the opposite side of the guidance device. This skewing of the roller 1 will guide the belt way from the guide device 13 and the force that the belt exerts thereon will diminish.
  • the spring 5 (which is now tensioned) will pull the roller holder in the opposite direction and the skewing relative to the conveyor belt will diminish after which the skew correction will diminish.
  • the conveyor belt's direction and position over the roller 1 will be capable of being corrected at all times as a result of the force the spring 5 exerts on the roller holder in the one direction and the force that the belt's skew travel (at the belt edge) exerts on the guide device 13 in the other direction.
  • lever arm between the pivot bearing 3 and the attachment 4 for the spring 5.
  • This lever arm multiplied by the force of the spring will, in other words, correct in one direction whilst the belt's force against the guide device 13 will correct in the opposite direction.
  • it is a relatively short lever arm between the attachment 4 for the spring and the pivot bearing 3. This can be varied by attaching the spring 5 at any point along the roller holder. Similarly, the force obtained can be varied by varying the spring stiffness of the spring 5. >
  • the elastic element 5 which in the illustrated embodiment is indicated as a spring, may also be an elastomer or other elastic material that is arranged between the roller holder and a fixed point.
  • an elastomer material may also be incorporated into the pivot bearing 3 so that the rotary motion takes place at all times in an elastic material.
  • this will have fewer possibilities for adjustment than the embodiment that is shown.
  • the roller path or the planar surface 9 is fixedly connected to a fixed point via the rod or shaft 16 which is further shown in Figure 2 secured to the fastening bracket 14 via setting screws or bolts 18 and 19.
  • the fastening bracket 14, like the fastening bracket 15, is on the opposite side of the guidance device provided with screw holes 20 and 21 for attachment to the actual roller path and the supporting structure for the conveyor belt.
  • the roller holder is designed so that it places the roller 1 with roller shaft 2 higher.
  • This is shown in an outline form in Figure 7 where the roller 1 is located on the roller shaft 2 which in turn is supported by a bracket or frame 22.
  • This frame 22 is at one end pivotally secured in a pivot bearing 3 and at its other end is freely supported in the direction of rotation, for example, by means of rollers or wheels 8 on a planar surface 9 as indicated in Figure 7, as in the other figures.
  • the roller 1 may be self-supporting with a spindle at each end that is secured in a roller holder configured as a cradle, box or frame.
  • the spring 5 will in that case be attached by the fastening device 4 to one of the spindles or the roller holder.
  • the spring 5 may be secured to the roller holder on one side or the other of the pivot bearing 3. If the spring 5 is secured on the outer side of the pivot bearing 3, this requires that the direction of the spring be changed 180 degrees as the lever arm relative to the pivot bearing 3 moves in the opposite direction upon rotation.
  • Figure 1 shows a guidance device according to the invention in the neutral position where the wheels 8 are located approximately in the middle of the planar surface 9.
  • the guidance device is shown in full swing where the wheels 8 abut against the front end of the surface 9. In this position, the guidance device will guide the belt to the maximum to the right over the roller relative to the indicated belt direction and the spring 5 is extended and tensioned to the maximum.
  • Figure 6 shows full swing in the opposite direction where the wheels 8 abut against the rear end of the surface 9.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Belt Conveyors (AREA)

Abstract

La présente invention concerne un dispositif de guidage pour une courroie transporteuse, lequel dispositif de guidage est disposé de faon transversale à la direction de déplacement de la courroie et peut guider la position de la courroie dans la direction latérale et guider la direction de déplacement de la courroie. Le dispositif selon la présente invention est utilisé pour corriger le trajet ou le mouvement de la courroie sur une pluralité de rouleaux de support afin d'assurer le centrage de la courroie sur les rouleaux de support à mesure qu'une courroie transporteuse peut en fonctionnement se déplacer latéralement loin d'une position neutre dans sa direction longitudinale.
PCT/NO2008/000208 2007-06-15 2008-06-10 Unité de guidage pour courroie transporteuse WO2008153409A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20073060 2007-06-15
NO20073060A NO327544B1 (no) 2007-06-15 2007-06-15 Styringsanordning for transportbelte

Publications (1)

Publication Number Publication Date
WO2008153409A1 true WO2008153409A1 (fr) 2008-12-18

Family

ID=39743315

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2008/000208 WO2008153409A1 (fr) 2007-06-15 2008-06-10 Unité de guidage pour courroie transporteuse

Country Status (2)

Country Link
NO (1) NO327544B1 (fr)
WO (1) WO2008153409A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013110175A1 (fr) * 2012-01-23 2013-08-01 Frank Ivan Rouleau de guidage pour le centrage de bandes transporteuses
CN105129318A (zh) * 2015-09-01 2015-12-09 宁波荣大昌办公设备有限公司 一种用于印刷机中输送盘的自动调节装置
CN113998380A (zh) * 2021-12-16 2022-02-01 北京京东乾石科技有限公司 传动带纠偏装置和提升机

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104816916B (zh) * 2015-05-21 2017-04-05 河南中烟工业有限责任公司 一种皮带输送机
CN114129993B (zh) * 2021-12-24 2024-08-16 山东泰山体育器材有限公司 一种滑雪模拟场地导向装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3692674A (en) * 1970-11-04 1972-09-19 Ecodyne Corp Filter screen training mechanism
JPS6067307A (ja) * 1983-09-22 1985-04-17 Hitachi Ltd コンベヤベルトの蛇行自動復帰装置
EP0659663A1 (fr) * 1993-12-23 1995-06-28 Transver AG Dispositif de commande d'alignement d'une bande sans fin

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3692674A (en) * 1970-11-04 1972-09-19 Ecodyne Corp Filter screen training mechanism
JPS6067307A (ja) * 1983-09-22 1985-04-17 Hitachi Ltd コンベヤベルトの蛇行自動復帰装置
EP0659663A1 (fr) * 1993-12-23 1995-06-28 Transver AG Dispositif de commande d'alignement d'une bande sans fin

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013110175A1 (fr) * 2012-01-23 2013-08-01 Frank Ivan Rouleau de guidage pour le centrage de bandes transporteuses
CN105129318A (zh) * 2015-09-01 2015-12-09 宁波荣大昌办公设备有限公司 一种用于印刷机中输送盘的自动调节装置
CN113998380A (zh) * 2021-12-16 2022-02-01 北京京东乾石科技有限公司 传动带纠偏装置和提升机

Also Published As

Publication number Publication date
NO327544B1 (no) 2009-08-10
NO20073060L (no) 2008-12-16

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