WO1997045344A1 - A belt steering assembly for centering of conveyor belts - Google Patents
A belt steering assembly for centering of conveyor belts Download PDFInfo
- Publication number
- WO1997045344A1 WO1997045344A1 PCT/NO1997/000134 NO9700134W WO9745344A1 WO 1997045344 A1 WO1997045344 A1 WO 1997045344A1 NO 9700134 W NO9700134 W NO 9700134W WO 9745344 A1 WO9745344 A1 WO 9745344A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- belt
- steering assembly
- conveyor belt
- stay
- guide rollers
- Prior art date
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 invention concerns a reversible belt steering assembly for centring conveyor belts, comprising a rotating mechanism which is rotatable about an axis perpendicular to the conveyor belt and which supports at least one steering roller for the conveyor belt, and a first transfer mechanism which supports first guide rollers, where the guide rollers of the conveyor belt are guided laterally in relation to the conveyor belt's longitudinal direction, and where in the event of a lateral misalignment of the conveyor belt from a neutral position for the conveyor belt and the belt steering assembly the first transfer mechanism transfers the guide rollers' movement to the rotating mechanism for rotation of the steering rollers to a position in which they steer the conveyor belt back to the neutral position.
- the belt steering assembly is used to guide the conveyor belt in processing plants for various types of materials such as granulated ores.
- a conveyor belt device for correcting lateral misalignments which occur during operation and thus return the belt to its normal position.
- a set of steering rollers for the conveyor belt is mounted on a plate which is rotatably attached to the base.
- On to the rotatable plate there is mounted an arm with a transverse stay.
- the arm may be jointed and rotatable about a rotating joint which is attached to the base.
- To the transverse stay there are attached guide rollers which run along the edge of the conveyor belt, and which in the event of a lateral misalignment of the belt transfer the displacement to the transverse stay.
- the displacement is transferred to the lever arm, which in turn transfers the displacement to the plate with the result that the axes of the steering rollers are tilted, thus returning the conveyor belt to its normal position.
- the object of the invention is to provide a belt steering assembly which can be used to steer a reversible conveyor belt in both directions of travel.
- the invention consists in a belt steering assembly comprising a rotating mechanism with at least one steering roller.
- the rotating mechanism with the steering roller can be controlled by means of a switch mechanism by two different sets of guide rollers, with the result that the steering roller returns the belt to its neutral position.
- fig. 1 is a perspective view of a reversible belt steering assembly according to the invention
- fig. 2 illustrates a manual switch mechanism according to the invention
- fig. 3 illustrates an automatic switch mechanism according to the invention.
- the same reference numerals are employed for corresponding parts in all the figures.
- Fig. 1 illustrates a reversible belt steering assembly 1, comprising a first beam 2, a second beam 4 and a third beam 4', all of which are attached to the side members or the frame of a conveyor with a conveyor belt.
- the actual conveyor with the conveyor belt is of a known type, and is not shown here in order to illustrate the actual invention more clearly, but it should be understood that the first, second and third beams are attached to the conveyor's side members with mounting brackets 15, and that these three beams are thereby firmly secured in relation to the base.
- Supporting rollers (not shown) attached crosswise between the side members support the conveyor belt, thus enabling it to move in its longitudinal direction, indicated by the arrow P.
- a rotating mechanism in the form of a rotatable plate 3 is attached in the middle of the first beam 2 for rotation about an axis a.
- a beam 19 with brackets 20 is firmly secured to the rotatable plate 3, and the brackets 20 have grooves 21 for mounting a steering roller (not shown), thus enabling it to be rotated about the axis a in the same way as the rotatable plate.
- a first lever arm 5 is attached in the middle of the second beam 4 for rotation about an axis b, and gripping members in the form of a pin 12 in a first end 6 of the first lever arm 5 and a fork 1 1 on the rotatable plate 3 can transfer movement from the first lever arm to the rotatable plate.
- the first lever arm 5 is further rotatably attached at a second end 7 to a first transverse stay 8, thus enabling it to rotate about an axis c.
- the first transverse stay 8 further has rotatably mounted first guide rollers 9 each of which abuts against its outer edge of the conveyor belt.
- a first parallel stay 10 is provided parallel to the first lever arm 5, rotatably attached to the second beam 4 for rotation about an axis d, and rotatably attached to the first transverse stay 8 for rotation about an axis e.
- the distance b-d is equal to the distance c-e
- the distance b-c is equal to the distance d-e, with the result that the second beam 4, the first lever arm 5, the first transverse stay 8 and the first parallel stay 10 form a parallelogram.
- the first transverse stay 8 will therefore always be parallel to the second beam 4, i.e. perpendicular to the conveyor belt's longitudinal direction P.
- the first transverse stay 8, the first parallel stay 10 and the first lever arm 5 with the pin 12 thereby form a transfer mechanism for transferring movement from the first guide rollers 9 to the rotatable plate 3, since a lateral displacement of the conveyor belt across its longitudinal direction P will be transferred to the first guide rollers 9, via the first transverse stay 8 to the first lever arm 5, and on through the pin 12 and the fork 1 1 to the rotatable plate 3, thus causing it to be rotated about the axis a.
- the steering roller mounted in the brackets 20 on the beam 19 which is firmly secured in the rotatable plate 3 will thereby be tilted and exert a laterally directed force on the belt, thus returning the belt to the position it occupied before it began its lateral displacement.
- a second transfer mechanism comprising a second lever arm 5' rotatably secured in the third beam 4', a second transverse stay 8' and a second parallel stay 10' for transferring movement from second guide rollers 9' to the rotatable plate 3 is arranged opposite to the steering roller and corresponding to the first lever arm 5, the second beam 4, the first transverse stay 8 and the first parallel stay 10, with the result that the second transfer mechanism in the illustrated embodiment is an inversion of the first transfer mechanism.
- the second transfer mechanism is indicated in fig. 1 with the same reference numerals as the first transfer mechanism, with the addition of a mark (4', 5', etc.) and the second transfer mechanism will therefore not be described in detail.
- the first, second and third beams, the transverse stays and the beam for the steering roller are laterally adjustable by means of telescopically movable external square tubes 16 and internal square tubes 17, thus enabling the belt steering assembly to be adjusted in order to guide the conveyor belt towards a desired neutral position.
- the transverse stays have settings 18 for adjusting the angle of contact of the guide rollers towards the edges of the conveyor belt.
- Fig. 2 illustrates an embodiment of the switch mechanism, in which the forks 1 1, 1 1 ' are connected with each other by means of a fork stay 26.
- the fork stay is passed through and guided laterally by a guide bushing 27, and can be moved manually in its longitudinal direction with a handle 13, thus causing the forks to be moved in and out of engagement with the pins.
- an embodiment of the switch mechanism is obtained in which the rotatable plate can only be connected to one transfer mechanism at a time, since one fork will be withdrawn from engagement at the same time as the other fork is moved into engagement with its respective pin.
- Fig. 3 illustrates an electrically driven switch mechanism where the fork stay 26 is moved by an actuator 4 in the form of a rack 28 driven by an electric motor 29.
- the electric motor can be controlled manually, or it can be controlled by a signal which indicates the conveyor belt's direction of travel.
- the illustrated embodiment of the conveyor belt steering device is a so-called “understeerer”, i.e. it is designed to steer the conveyor belt when it moves in a return direction on the underside of the conveyor.
- an “oversteerer” is employed to steer the conveyor belt when it moves in a direction of travel on the top of the conveyor.
- the oversteerer will be similar to the understeerer, but the design will be slightly different on account of the attachment to the conveyor's side members.
- the illustrated embodiment of the transfer mechanism where the second beam 4, the first lever arm 5, the first transverse stay 8 and the first parallel stay 10 form a parallelogram, is a preferred embodiment of the invention, since it is demonstrated, as described in NO 178 853, that this is favourable for the belt's stability and counteracts a tendency to misalignment.
- This transfer mechanism can of course be designed in other ways in other embodiments, for example by moving the parallel stay's rotatable mountings in such a manner that this part of the mechanism no longer forms an exact parallelogram.
- Another, simpler version of the transfer mechanism can consist in rigidly connecting the first lever arm 5 and the first transverse stay 8 with each other and omitting the first parallel stay 10.
- Another variation can be produced by a different design of the two transfer mechanisms, since there is, of course, no requirement for them to be alike. This may be relevant if the conveyor belt is normally moved in one specific direction, and it is only in exceptional cases or when there is light loading that the belt goes in the other direction.
Abstract
Description
Claims
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002257086A CA2257086A1 (en) | 1996-05-31 | 1997-05-28 | A belt steering assembly for centering of conveyor belts |
AU31948/97A AU712725B2 (en) | 1996-05-31 | 1997-05-28 | A belt steering assembly for centering of conveyor belts |
DE69702660T DE69702660T2 (en) | 1996-05-31 | 1997-05-28 | BELT TRACK GUIDE ARRANGEMENT FOR CENTERING CONVEYOR BELTS |
JP09542105A JP2000511142A (en) | 1996-05-31 | 1997-05-28 | Belt steering assembly for centering conveyor belts |
EP97927498A EP0907592B1 (en) | 1996-05-31 | 1997-05-28 | A belt steering assembly for centering of conveyor belts |
EE9800461A EE9800461A (en) | 1996-05-31 | 1997-05-28 | Tape drive mechanism for centering conveyor belts |
BR9709151-0A BR9709151A (en) | 1996-05-31 | 1997-05-28 | Reversible belt steering assembly for centering conveyed belts. |
AT97927498T ATE194963T1 (en) | 1996-05-31 | 1997-05-28 | BELT GUIDING ARRANGEMENT FOR CENTERING CONVEYOR BELTS |
US09/194,592 US6186317B1 (en) | 1996-05-31 | 1997-05-28 | Belt steering assembly for centering of conveyor belts |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO962268 | 1996-05-31 | ||
NO962268A NO306708B1 (en) | 1996-05-31 | 1996-05-31 | Reversible belt control unit for centering of conveyor belts |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997045344A1 true WO1997045344A1 (en) | 1997-12-04 |
Family
ID=19899453
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NO1997/000134 WO1997045344A1 (en) | 1996-05-31 | 1997-05-28 | A belt steering assembly for centering of conveyor belts |
Country Status (14)
Country | Link |
---|---|
US (1) | US6186317B1 (en) |
EP (1) | EP0907592B1 (en) |
JP (1) | JP2000511142A (en) |
CN (1) | CN1225612A (en) |
AT (1) | ATE194963T1 (en) |
AU (1) | AU712725B2 (en) |
BR (1) | BR9709151A (en) |
CA (1) | CA2257086A1 (en) |
DE (1) | DE69702660T2 (en) |
EE (1) | EE9800461A (en) |
ID (1) | ID17099A (en) |
NO (1) | NO306708B1 (en) |
WO (1) | WO1997045344A1 (en) |
ZA (2) | ZA974530B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU728890B2 (en) * | 1997-08-04 | 2001-01-18 | Tru-Trac Rollers Pty Ltd | Tracking assembly for trough conveyor belts |
NO325963B1 (en) * | 2006-06-01 | 2008-08-25 | Techno Track As | Conveyor belt aligning device |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE507733C2 (en) * | 1996-11-01 | 1998-07-06 | Svedala Trellex Ab | Conveyor Control |
EP1049639B1 (en) * | 1997-10-03 | 2009-06-17 | Savage, Paul Alan | Belt tracking assembly |
SE9903134L (en) * | 1999-09-03 | 2000-12-11 | Svedala Trellex Ab | Conveyor Control |
NO317528B1 (en) | 2001-01-05 | 2004-11-08 | Techno Track As | A belt guidance unit |
KR100931149B1 (en) * | 2002-11-22 | 2009-12-10 | 주식회사 포스코 | Conveyor belt meander automatic adjuster |
KR100931148B1 (en) * | 2002-11-25 | 2009-12-10 | 주식회사 포스코 | Conveyor belt meander automatic adjuster |
US7708132B2 (en) * | 2006-08-31 | 2010-05-04 | Les Produits Gilbert Inc. | Adjustment system for a speed reduction belt assembly |
DE102008051061B3 (en) * | 2008-10-09 | 2010-04-08 | Mr Etikettiertechnik Gmbh & Co. Kg | labeling |
BR102012018473A2 (en) * | 2012-07-25 | 2015-05-26 | Vale Sa | Belt guide device for use on belt conveyors |
US9061831B1 (en) * | 2013-12-18 | 2015-06-23 | Precision, Inc. | Conveyor belt aligning apparatus |
CN105727836A (en) * | 2016-04-07 | 2016-07-06 | 侯如升 | Plug-in type conveyer belt pulley for circular mold granulator |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH344367A (en) * | 1955-06-29 | 1960-01-31 | Dynamit Nobel Ag | Method and device for controlling the straight course of strips or material webs guided over at least one tensioning roller |
CH491800A (en) * | 1969-05-12 | 1970-06-15 | Grosswaagen Veb | Belt tensioning and straight running regulating device for belt conveyors with endlessly revolving conveyor belt |
FR2110382A1 (en) * | 1970-10-13 | 1972-06-02 | Knorr Bremse Gmbh | |
FR2117781A1 (en) * | 1970-12-17 | 1972-07-28 | Parveau Albert |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
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US2160057A (en) * | 1937-09-22 | 1939-05-30 | Baker Perkins Co Inc | Conveyer aligning device |
US3306431A (en) * | 1958-06-17 | 1967-02-28 | Consolidation Coal Co | Belt conveyor |
US3066547A (en) * | 1959-12-14 | 1962-12-04 | Link Belt Co | Belt training idler |
US3065646A (en) * | 1961-03-15 | 1962-11-27 | Merton C Vance | Conveyor belt take-up mechanism |
US3303924A (en) * | 1965-09-29 | 1967-02-14 | Koppers Co Inc | Belt training idler |
US3593841A (en) * | 1969-11-03 | 1971-07-20 | United States Steel Corp | Idler roller actuating device |
DE3035798A1 (en) * | 1980-09-23 | 1982-04-08 | Elektro-Mechanik Gmbh, 5963 Wenden | Control roller for edge guidance of running bands - uses adjustment of control roller transverse to direction of movement and simultaneous swivelling |
CH646922A5 (en) * | 1982-06-02 | 1984-12-28 | Bobst Sa | DEVICE FOR THE LONGITUDINAL GUIDANCE OF AN ENDLESS STRIP. |
SU1555239A1 (en) * | 1988-05-31 | 1990-04-07 | Кузбасский Политехнический Институт | Device for centering conveyer belt |
NO178853C (en) * | 1993-11-22 | 1996-06-19 | Hovstoe Kenneth | Device for stabilizing the conveyor belt in a self-adjusting belt control unit |
US5609241A (en) * | 1995-03-23 | 1997-03-11 | Atlantic Richfield Company | Training idler assembly for a conveyor system |
-
1996
- 1996-05-31 NO NO962268A patent/NO306708B1/en unknown
-
1997
- 1997-05-23 ZA ZA9704530A patent/ZA974530B/en unknown
- 1997-05-23 ZA ZA9704521A patent/ZA974521B/en unknown
- 1997-05-28 EE EE9800461A patent/EE9800461A/en unknown
- 1997-05-28 EP EP97927498A patent/EP0907592B1/en not_active Expired - Lifetime
- 1997-05-28 AT AT97927498T patent/ATE194963T1/en not_active IP Right Cessation
- 1997-05-28 DE DE69702660T patent/DE69702660T2/en not_active Expired - Fee Related
- 1997-05-28 US US09/194,592 patent/US6186317B1/en not_active Expired - Fee Related
- 1997-05-28 BR BR9709151-0A patent/BR9709151A/en not_active IP Right Cessation
- 1997-05-28 JP JP09542105A patent/JP2000511142A/en active Pending
- 1997-05-28 AU AU31948/97A patent/AU712725B2/en not_active Ceased
- 1997-05-28 CA CA002257086A patent/CA2257086A1/en not_active Abandoned
- 1997-05-28 WO PCT/NO1997/000134 patent/WO1997045344A1/en not_active Application Discontinuation
- 1997-05-28 CN CN97196542A patent/CN1225612A/en active Pending
- 1997-06-02 ID IDP971858A patent/ID17099A/en unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH344367A (en) * | 1955-06-29 | 1960-01-31 | Dynamit Nobel Ag | Method and device for controlling the straight course of strips or material webs guided over at least one tensioning roller |
CH491800A (en) * | 1969-05-12 | 1970-06-15 | Grosswaagen Veb | Belt tensioning and straight running regulating device for belt conveyors with endlessly revolving conveyor belt |
FR2110382A1 (en) * | 1970-10-13 | 1972-06-02 | Knorr Bremse Gmbh | |
FR2117781A1 (en) * | 1970-12-17 | 1972-07-28 | Parveau Albert |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU728890B2 (en) * | 1997-08-04 | 2001-01-18 | Tru-Trac Rollers Pty Ltd | Tracking assembly for trough conveyor belts |
NO325963B1 (en) * | 2006-06-01 | 2008-08-25 | Techno Track As | Conveyor belt aligning device |
US7669709B2 (en) | 2006-06-01 | 2010-03-02 | Hovstoe Kenneth | Guidance unit for conveyor belt |
Also Published As
Publication number | Publication date |
---|---|
ID17099A (en) | 1997-12-04 |
EE9800461A (en) | 1999-06-15 |
ATE194963T1 (en) | 2000-08-15 |
CN1225612A (en) | 1999-08-11 |
NO962268L (en) | 1997-12-01 |
DE69702660D1 (en) | 2000-08-31 |
US6186317B1 (en) | 2001-02-13 |
JP2000511142A (en) | 2000-08-29 |
EP0907592B1 (en) | 2000-07-26 |
CA2257086A1 (en) | 1997-12-04 |
AU3194897A (en) | 1998-01-05 |
NO306708B1 (en) | 1999-12-13 |
DE69702660T2 (en) | 2001-04-12 |
ZA974521B (en) | 1997-12-30 |
AU712725B2 (en) | 1999-11-11 |
BR9709151A (en) | 2000-01-11 |
EP0907592A1 (en) | 1999-04-14 |
NO962268D0 (en) | 1996-05-31 |
ZA974530B (en) | 1998-01-23 |
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