GB2023526A - Tensioning Device for a Conveyor Belt - Google Patents

Tensioning Device for a Conveyor Belt Download PDF

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Publication number
GB2023526A
GB2023526A GB7919332A GB7919332A GB2023526A GB 2023526 A GB2023526 A GB 2023526A GB 7919332 A GB7919332 A GB 7919332A GB 7919332 A GB7919332 A GB 7919332A GB 2023526 A GB2023526 A GB 2023526A
Authority
GB
United Kingdom
Prior art keywords
drum
tensioning device
conveyor belt
pulley
spindle
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.)
Granted
Application number
GB7919332A
Other versions
GB2023526B (en
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.)
Binder and Co AG
Original Assignee
Binder and Co AG
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 Binder and Co AG filed Critical Binder and Co AG
Publication of GB2023526A publication Critical patent/GB2023526A/en
Application granted granted Critical
Publication of GB2023526B publication Critical patent/GB2023526B/en
Expired legal-status Critical Current

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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
    • B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
    • B65G23/44—Belt or chain tensioning arrangements

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)
  • Drives For Endless Conveyors (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)

Abstract

A tensioning device for a conveyor belt (2) looped around a drum (1), comprises a pair of pulleys (5) mounted on an irrotatable spindle (11), on which the drum is also mounted via a bearing, a rope (4) passing from a winch (6) around axially fixed pulleys (7, 8, 9, 10) and around the pulleys (5) to a weight (3) which tensions the rope. The spindle (11) is supported on a carriage (12) displaceable via wheels (13) on rails (14), so that the tensioned rope urges the pulleys (5), towards the fixed pulleys (7, 8, 9, 10) and thus tensions the conveyor belt (2). <IMAGE>

Description

SPECIFICATION Tensioning Device for a Conveyor Belt The invention relates to a tensioning device for a conveyor belt looped round a drum which is urged towards the loop in the conveyor belt by means of an energy accumulator, such as a weight acting on a flexible eelongate element in tension passing around pulleys mounted coaxially with the drum.
Tensioning devices for a conveyor belt are known wherein the drum around which the conveyor belt is guided is mounted on a carriage which is movable along a guide. The carriage is puiled towards the conveyor belt by a tensioned rope which is guided over pulleys mounted thereon. A disadvantage of the known construction is that, for great tensile stresses, it is necessary to use a very heavily constructed carriage and a heavy tensioning weight.
The object of the present invention is to provide a simpler and lighter tensioning device for a conveyor belt.
According to the invention there is provided a tensioning device for a conveyor belt passing in a loop around a drum, which tensioning device comprises a mounting for the drum enabling movement thereof in the direction of the longitudinal axis of the belt, a pulley coaxially mounted on either side of the drum, a flexible elongate element passing around the pulleys, and means for maintaining the flexible cable in tension, thereby urging the drum towards the loop of the conveyor belt.
This results in a very advantageous distribution of forces throughout the tensioning device and the latter can be made relatively light in construction. Moreover, as a result of guiding the tensioned flexible elongate element, which is preferably a rope, in accordance with the invention, a tensioning weight which is up to 25% lighter can be used.
Advantageously, the drum is mounted on a non-rotating spindle with an inner bearing and the two pulleys are mounted on this spindle, each being between an end wall of the drum and a support for the spindle.
Appropriately, two axially fixed members are spaced horizontally from each pulley and the fexible elongate element passes over the first member round the said pulley and then over the second member, to feed and receive from respectively the pulley with the elongate element.
The members are preferably pulleys, and the other end may be adjustable braced by a hand winch.
An embodiment of the invention will now be described, by way of example only with reference to the single Figure.
The Figure shows, in side elevation, a tensioning device for a conveyor belt, wherein the conveyor belt 2, looped round a drum 1, is shown in plan view for clarity.
A weight 3 pulls the drum 1 towards the loop in the conveyor belt 2 by means of a tensioned rope 4. A pulley 5 is mounted on each side of the drum 1, coaxially therewith. The rope 4 is stretched, starting from a hand winch 6, over a pulley 7 having an axis whose position is fixed and then over a pulley 5 mounted coaxially with the drum 1, and over further pulleys 8 and 9 having spatially stationary fixed axes. From there, rope 4 runs over the second pulley 5 mounted coaxially with the drum 1 and back over another axially fixed pulley 10 to the weight 3.
The drum 1 is mounted on an irrotatable spindle 11 via an inner bearing. Each of the two pulleys 5 is mounted on the spindle 11 between and end wall of the drum 1 and a spindle support 15. Both spindle supports 15 are mounted on a carriage 12, which can travel along rails 14 by means of four wheels 13.
The hand winch 6 is actuated when the weight 3 is to be raised or lowered, e.g. when the rope 4 is being replaced.
Claims.
1. A tensioning device for a conveyor belt passing in a loop around a drum, which tensioning device comprises a mounting for the drum enabling movement thereof in the direction of the longitudinal axis of the belt, a pulley coaxially mounted on either side of the drum, a flexible elongate element passing around the pulleys, and means for maintaining the flexible cable in tension, thereby urging the drum towards the loop of the conveyor belt.
2. A tensioning device as claimed in Claim 1, in which the means for maintaining flexible elongate element in tension comprises an energy accumulator at one of its ends, its other end being braced against movement.
3. A tensioning ddevice as claimed in Claim 2, in which the energy accumulator is a weight.
4. A tensioning device as claimed in any preceding claim, in which the flexible elongate element is a rope.
5. A tensioning device as claimed in any preceding claim, further comprising an irrotatable spindle for mounting the drum via a bearing and a spindle support at either end of the spindle, the two pulleys each being mounted on the spindle between an end of the drum and a spindle support.
6. A tensioning device as claimed in Claim 5, in which the spindle supports are mounted on a carriage, which is horizontally displaceable along rails.
7. A tensioning device as claimed in any preceding claim, further comprising a first and a second axially fixed member spaced horizontally from each pulley and the flexible elongate element passes over the first member round the said pulley and then over the second member, to feed and receive from respectively, the pulley with the elongate element.
8. A tensioning device as claimed in Claim 7, in which the members are pulleys.
9. A tensioning device as claimed in any of Ciaims 2 to 8, in which the said other end of the
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (9)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Tensioning Device for a Conveyor Belt The invention relates to a tensioning device for a conveyor belt looped round a drum which is urged towards the loop in the conveyor belt by means of an energy accumulator, such as a weight acting on a flexible eelongate element in tension passing around pulleys mounted coaxially with the drum. Tensioning devices for a conveyor belt are known wherein the drum around which the conveyor belt is guided is mounted on a carriage which is movable along a guide. The carriage is puiled towards the conveyor belt by a tensioned rope which is guided over pulleys mounted thereon. A disadvantage of the known construction is that, for great tensile stresses, it is necessary to use a very heavily constructed carriage and a heavy tensioning weight. The object of the present invention is to provide a simpler and lighter tensioning device for a conveyor belt. According to the invention there is provided a tensioning device for a conveyor belt passing in a loop around a drum, which tensioning device comprises a mounting for the drum enabling movement thereof in the direction of the longitudinal axis of the belt, a pulley coaxially mounted on either side of the drum, a flexible elongate element passing around the pulleys, and means for maintaining the flexible cable in tension, thereby urging the drum towards the loop of the conveyor belt. This results in a very advantageous distribution of forces throughout the tensioning device and the latter can be made relatively light in construction. Moreover, as a result of guiding the tensioned flexible elongate element, which is preferably a rope, in accordance with the invention, a tensioning weight which is up to 25% lighter can be used. Advantageously, the drum is mounted on a non-rotating spindle with an inner bearing and the two pulleys are mounted on this spindle, each being between an end wall of the drum and a support for the spindle. Appropriately, two axially fixed members are spaced horizontally from each pulley and the fexible elongate element passes over the first member round the said pulley and then over the second member, to feed and receive from respectively the pulley with the elongate element. The members are preferably pulleys, and the other end may be adjustable braced by a hand winch. An embodiment of the invention will now be described, by way of example only with reference to the single Figure. The Figure shows, in side elevation, a tensioning device for a conveyor belt, wherein the conveyor belt 2, looped round a drum 1, is shown in plan view for clarity. A weight 3 pulls the drum 1 towards the loop in the conveyor belt 2 by means of a tensioned rope 4. A pulley 5 is mounted on each side of the drum 1, coaxially therewith. The rope 4 is stretched, starting from a hand winch 6, over a pulley 7 having an axis whose position is fixed and then over a pulley 5 mounted coaxially with the drum 1, and over further pulleys 8 and 9 having spatially stationary fixed axes. From there, rope 4 runs over the second pulley 5 mounted coaxially with the drum 1 and back over another axially fixed pulley 10 to the weight 3. The drum 1 is mounted on an irrotatable spindle 11 via an inner bearing. Each of the two pulleys 5 is mounted on the spindle 11 between and end wall of the drum 1 and a spindle support 15. Both spindle supports 15 are mounted on a carriage 12, which can travel along rails 14 by means of four wheels 13. The hand winch 6 is actuated when the weight 3 is to be raised or lowered, e.g. when the rope 4 is being replaced. Claims.
1. A tensioning device for a conveyor belt passing in a loop around a drum, which tensioning device comprises a mounting for the drum enabling movement thereof in the direction of the longitudinal axis of the belt, a pulley coaxially mounted on either side of the drum, a flexible elongate element passing around the pulleys, and means for maintaining the flexible cable in tension, thereby urging the drum towards the loop of the conveyor belt.
2. A tensioning device as claimed in Claim 1, in which the means for maintaining flexible elongate element in tension comprises an energy accumulator at one of its ends, its other end being braced against movement.
3. A tensioning ddevice as claimed in Claim 2, in which the energy accumulator is a weight.
4. A tensioning device as claimed in any preceding claim, in which the flexible elongate element is a rope.
5. A tensioning device as claimed in any preceding claim, further comprising an irrotatable spindle for mounting the drum via a bearing and a spindle support at either end of the spindle, the two pulleys each being mounted on the spindle between an end of the drum and a spindle support.
6. A tensioning device as claimed in Claim 5, in which the spindle supports are mounted on a carriage, which is horizontally displaceable along rails.
7. A tensioning device as claimed in any preceding claim, further comprising a first and a second axially fixed member spaced horizontally from each pulley and the flexible elongate element passes over the first member round the said pulley and then over the second member, to feed and receive from respectively, the pulley with the elongate element.
8. A tensioning device as claimed in Claim 7, in which the members are pulleys.
9. A tensioning device as claimed in any of Ciaims 2 to 8, in which the said other end of the elongate element is adjustably braced by a hand winch.
1 0. A tensioning device for a conveyor belt substantially as hereinbefore described, with reference to the drawing.
GB7919332A 1978-06-26 1979-06-04 Tensioning device for a conveyor belt Expired GB2023526B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT464078A AT353166B (en) 1978-06-26 1978-06-26 CLAMPING DEVICE FOR A CONVEYOR RING

Publications (2)

Publication Number Publication Date
GB2023526A true GB2023526A (en) 1980-01-03
GB2023526B GB2023526B (en) 1982-08-18

Family

ID=3566522

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7919332A Expired GB2023526B (en) 1978-06-26 1979-06-04 Tensioning device for a conveyor belt

Country Status (4)

Country Link
AT (1) AT353166B (en)
DE (1) DE2904325C2 (en)
FR (1) FR2429695A1 (en)
GB (1) GB2023526B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101010778B1 (en) 2003-07-07 2011-01-27 주식회사 포스코 An apparatus for automatic maintaining the tension-weight balance in conveyor
WO2018167613A1 (en) * 2017-03-13 2018-09-20 Kcm Engineers Cc Vertical tensioning system for a conveyor belt arrangement

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3901143A1 (en) * 1988-03-08 1989-09-28 Gottfried Heinrichs Device for tensioning a conveying belt
CN104044866A (en) * 2014-06-17 2014-09-17 刘运启 Counterweight-type constant-tensile-force rubber belt tensioning device for coal mine underground belt conveyor
CN105539732A (en) * 2016-01-11 2016-05-04 江苏政田重工股份有限公司 Ship cable tension stabilizer with self-adaptive capacity
CN114955395A (en) * 2022-07-14 2022-08-30 中铁工程服务有限公司 Conveying device and method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD11606A (en) *
DE30998C (en) * R. KARLOWA in Hamburg Innovation in elevators
GB1076497A (en) * 1963-12-02 1967-07-19 Richard Sutcliffe Engineering Improvements in or relating to conveyors
US4033451A (en) * 1975-09-12 1977-07-05 Rexnord Inc. Self-counterweighted take-up

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101010778B1 (en) 2003-07-07 2011-01-27 주식회사 포스코 An apparatus for automatic maintaining the tension-weight balance in conveyor
WO2018167613A1 (en) * 2017-03-13 2018-09-20 Kcm Engineers Cc Vertical tensioning system for a conveyor belt arrangement
US11242205B2 (en) 2017-03-13 2022-02-08 Kcm Engineers Cc Vertical tensioning system for a conveyor belt arrangement

Also Published As

Publication number Publication date
ATA464078A (en) 1979-03-15
FR2429695A1 (en) 1980-01-25
DE2904325C2 (en) 1983-01-27
FR2429695B1 (en) 1984-10-12
GB2023526B (en) 1982-08-18
AT353166B (en) 1979-10-25
DE2904325A1 (en) 1980-01-10

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PCNP Patent ceased through non-payment of renewal fee