AU2015303806A1

AU2015303806A1 - Conveyor system for transporting goods with a trough-like conveyor belt and conical drums

Info

Publication number: AU2015303806A1
Application number: AU2015303806A
Authority: AU
Inventors: Herbert Trieb
Original assignee: Innova Patent GmbH
Current assignee: Innova Patent GmbH
Priority date: 2014-08-13
Filing date: 2015-05-07
Publication date: 2017-02-02
Also published as: AT516277A4; WO2016023050A1; AT516277B1; BR112017001224A2

Abstract

The conveyor system for transporting goods, comprising a self-contained conveyor belt (2) which can be moved by means of support rollers (3) along tracks, such as supporting cables or rails, and which is guided on each of the two ends of the system via a deflection roller (5), wherein the conveyor belt (2) is provided with supporting beams (31) oriented transversely to the direction of movement thereof, the support rollers (3) being mounted on the lateral ends thereof, and wherein the lateral regions (22) of the conveyor belt (2) are oriented away from the middle region (21) of the conveyor belt (2) in an oblique manner, wherein the conveyor belt (2) is formed in cross-section in a trough-like manner. In this case, the lateral regions (22) of the conveyor belt (2) are held in oblique layers by supports (32) provided on at least one part of the supporting beams (31), and the support surfaces (52) of the deflection rollers (5) are formed for the lateral regions (22) of the conveyor belt (2) which are outside the middle region (21) with reduced cross-section in relation to the middle region (51) or can be reduced in cross-section in relation to the cross-section of the middle region (51).

Description

CONVEYOR SYSTEM FOR TRANSPORTING GOODS WITH A TROUGH-LIKE

CONVEYOR BELT AND CONICAL DRUMS

The objective invention relates to a conveyor system for transporting goods by way of a conveyor belt which is closed per se, is movable along tracks, such as carrier cables or rails, by means of load-bearing rollers and which is guided at the two ends of the system by means of in each case one deflection roller, wherein the conveyor belt is provided with support beams, which are aligned transversely relative the direction of movement of said conveyor belt, on the lateral ends of said support beams the load-bearing rollers are mounted and, in addition, the lateral regions of the conveyor belt are aligned at an angle away from the central region of the conveyor belt, as a result of which the conveyor belt is realized in the manner of a trough in cross section. EP 0745545 Bl, EP1452466 B1 and EP2460744 B1 disclose conveyor systems which are realized with a conveyor belt which is realized on its two lateral edges with lateral walls which protrude at right angles from said conveyor belt. In order to be able to move this type of conveyor belt over the deflection rollers that are located at the ends of the conveyor system, it is necessary to realize the lateral walls in a highly flexible manner. In order to meet said requirement, the lateral walls consist of an elastic material and are realized with a corrugated profile. The technical requirements are met as a result of these types of corrugated lateral walls. As, however, conveyor belts with such corrugated lateral walls are expensive and time-consuming to produce and consequently cost a great deal, the production costs for such conveyor systems are, as a result, very greatly increased. 1

Furthermore, DE 2540483 A1 and DE 3426106 C2 disclose conveyor systems where in the conveying region the two lateral walls of the conveyor belt are held in an upwardly angled manner away from the central region thereof, as a result of which the conveyor belt is trough-like in cross section. A support structure, which is realized with angularly aligned rollers, against which the lateral regions of the conveyor belt abut, is provided for this purpose. The conveyor belt is moved away from the support structure in the regions of the deflection rollers, as a result of which it runs in an approximately level manner such that it is able to be guided over the deflection rollers .

However, said known conveyor systems demand very high amounts of structural expenditure as, on the one hand, a stationary support structure and, on the other hand, a support frame that is moved with the conveyor belt and, in addition, the conveyor belt that is moved along the conveyor system, have to be provided.

The object consequently underlying the objective invention is to create a conveyor system where the conveyor belt is realized with angularly aligned lateral walls in the conveying region, as a result of which it is trough-shaped in cross section, where, however, corrugated edges or expensive support structures are not necessary, as a result of which the production costs thereof are significantly lower than is the case with the disclosed conveyor systems.

This is achieved according to the invention as a result of the lateral regions of the conveyor belt being held at angled positions by means of supports which are provided on at least part of the support beams and of the contact 2 surfaces of the deflection rollers for the lateral regions of the conveyor belt which are located outside the central region being realized with reduced cross sections compared to the central region or being reducible in their cross sections in relation to the cross section of the central region.

At least one of the deflection rollers is preferably realized tapering conically from its central region toward its ends. At least one of the deflection rollers can also be realized with concave annular grooves outside the central region. In addition, at least one of the deflection rollers can be realized outside the central region with shoulders, wherein the lateral regions comprise a smaller diameter or a smaller cross section than the central region.

According to a further embodiment, at least one of the deflection rollers can be divided outside the central region into segments which are adjustable radially inward against the action of a restoring force.

In addition, the lateral regions of the conveyor belt can be realized with recesses which are penetrated by the support beams .

The object of the invention is explained in more detail below by way of several exemplary embodiments that are shown in the drawing and in which: FIG. 1 shows an axonometric representation of a conveyor system according to the invention with a conveyor belt, which is realized with support beams and load-bearing rollers, and deflection rollers, 3 FIG. FIG. FIG. FIG. FIG. FIG. 2, FIG. 2A show an axonometric representation according to FIG. 1 in an enlarged scale in relation to FIG. 1 and a sectional representation according to the line A-A of FIG. 2 of a portion of the conveyor system according to FIG. 1, 2B, FIG. 2C, FIG. 2D show an axonometric representation of a portion of the conveyor system, a sectional representation of the conveyor belt according to the line B-B of FIG. 2B and an axonometric representation of a support beam, 3 shows an axonometric representation in an enlarged scale compared to FIG. 1 of the end region of a conveyor system according to FIG. 1 with a deflection roller. 3A, FIG. 3B, FIG. 3C, FIG. 3D show a schematic side view and sectional representations according to the lines C-C, D-D and E-E of FIG. 3A of different positions of the conveyor belt with reference to a deflection roller, 4 shows the end region of a conveyor system analogous to FIG. 3 with the conveyor belt in an amended position in relation to the deflection roller, 4A, FIG. 4B, FIG. 4C, FIG. 4D show a schematic side view and sectional representations according to the lines F-F, G-G and H-H of FIG. 4A of different positions of the conveyor belt with reference to the deflection roller, 4 FIG. 5, FIG. 5A show a side view and a sectional representation according to the line I-I of FIG. 5 of a second embodiment of a deflection roller, FIG. 6, FIG. 6A show a side view and a sectional representation according to the line J-J of FIG. 6 of a third embodiment of a deflection roller, FIG. 7, FIG. 7A, FIG. 7B show a side view, a sectional representation according to the line K-K of FIG. 7 and an axonometric representation of a fourth embodiment of a deflection roller.

The conveyor system shown in FIG. 1 for goods, such as minerals, coal, stones, rubble etc. consists of a support framework 1 for a conveyor belt 2, which is closed per se, for transporting the goods from a loading station to an unloading station. The conveyor belt 2 is realized with support beams 31 which are aligned transversely with respect to said conveyor belt, at the free ends of which are mounted load-bearing rollers 3, which are movable along rails or along support cables 4 of the conveyor system. A deflection roller 5, by means of which the conveyor belt 2 is guided, is situated at each of the two ends of the conveyor system. The conveyor belt 2 is moved from the loading station to the unloading station and from said unloading station back to the loading station. In the loading station, the conveyor belt 2 is loaded with the goods to be conveyed 10. The goods to be conveyed 10 are unloaded from the conveyor belt 2 in the unloading station.

As can be seen from FIG. 2 and FIG. 2A, the conveyor belt 2 is fastened on the bottom side of the support beam 31, on the two ends of which are mounted load-bearing rollers 3. The load-bearing rollers 3 are movable along the carrier 5 cable 4. The conveyor belt 2, which is produced from a rubber-elastic material, is reinforced by steel cables 20 which are located in said conveyor belt and extend in the longitudinal direction thereof.

The conveyor belt 2 comprises one central region 21 and comprises two lateral regions 22 which are situated at positions that are aligned in an upwardly angled manner in the conveying region, as a result of which the conveyor belt 2 for conveying the goods to be conveyed 10 is realized in a trough-like manner. The central region 21 of the conveyor belt 2 is fastened by means of bolts 30 to the bottom surface of the support beams 31. The two lateral regions 22 of the conveyor belt 2 are realized with recesses 23 which are penetrated by the support beams 31. In addition, support elements 32, by means of which the lateral regions 22 are held at angled positions, are fastened to the support beams 31 outside the central region 21 and below the two lateral regions 22. The lateral regions 22 of the conveyor belt 2 are held by means of the support elements 32 at an angled position of between 10° and 45° in relation to the central region 21. FIG. 2B shows a portion of the conveyor belt 2 which is used in the conveyor system. FIG. 2C shows a cross section through the conveyor belt 2. The conveyor belt 2 per se is planar. The trough-shaped realization is produced as a result of the lateral regions 22 of the conveyor belt 2 being pivoted up when it is mounted on the conveyor system and the recesses 23 being penetrated by the support beams 31 as well as additionally as a result of the lateral regions 22 abutting against the support elements 32 that are located on the support beams 31. 6

Fig. 2D shows a support beam 31 with two load-bearing rollers 3 and additionally with two support elements 32.

The realization of the deflection rollers 5 which are situated at the ends of the conveyor system and of the progression of the deflecting of the conveyor belt 2 about the deflection rollers 5, are shown and explained below by way of FIG. 3 and FIG. 3A to FIG. 3D.

As can be seen in particular from FIG. 3, the deflection roller 5 is realized cylindrically in its central region 51, over which the central region 21 of the conveyor belt 2 is guided, whereas in its two lateral regions 52, over which the lateral regions 22 of the conveyor belt 2 are guided, it is realized tapering conically toward the outside. The conical surfaces comprise an angle of at least 5° in relation to the rotational axis of the deflection roller 5. Said angle is preferably between 10° and 30°, and is in particular 15°. As a result of said realization of the two deflection rollers 5 which are situated in the conveyor system, the necessary space is made available for the deflection of the two lateral regions 22 of the conveyor belt 2, which is held in a trough-like position by the support elements 32 along the section of the conveyor system, such that the lateral regions 22 of the conveyor belt 2 are also able to be deflected without, in this connection, causing the lateral regions 22 to over-extend. FIG. 3A shows such a position of the upper run of the conveyor belt 2 in the region of one of the deflection rollers 5, which position in the region of the deflection roller 5 does not have a support beam 31 with support elements 32, by means of which the lateral regions 22 are held at positions that are aligned upward at an angle. As 7 at said position of the conveyor belt 2 there are no support elements 32 provided in the region of the deflection roller 5, the lateral regions 22 of the conveyor belt 2 can be pivoted into the and under the plane of the central region 21 of the conveyor belt 2. As a result, said regions of the conveyor belt 2 can be moved over the deflection roller 5 without stresses occurring therein. FIG. 3B, FIG. 3C and FIG. 3D show the respective positions of the central region 21 and of the lateral regions 22 of the conveyor belt 2.

In contrast, FIG. 4 and FIG. 4A show positions of the conveyor belt 2 with a support beam 31 and with support elements 32 in the region of the deflection roller 5. As the lateral regions 22 of the conveyor belt 2 are held at angled positions by means of the support elements 32, the lateral regions 22 of the conveyor belt 2, which are situated on a support beam 31, cannot be pivoted downward. In said positions, however, due to the conical realization of the deflection rollers 5 in their laterally outside regions 52, the lateral regions 22 of the conveyor belt 2 which are located outside the support beam 31 are able to be pivoted downward in relation to the central region 21, as a result of which longitudinal adjustment is effected to the extent that, irrespective of the angled position of the lateral regions 22, over-extensions of the lateral regions 22 are avoided in the case of the support beams 31. FIG. 4B, FIG. 4C and FIG. 4D show the respective positions of the central region 21 and of the lateral regions 22 of the conveyor belt 2.

It is significant to the objective invention that the conveyor belt 2 of the conveyor system is realized with lateral regions 22 which project upward at an angle from the central region 21 of the conveyor belt 2, as a result of which the conveyor belt 2 comprises a trough-like cross section along the conveying section. As a result, the goods to be conveyed 10 are held in sturdy positions on the conveyor belt 2 .

The conveyor belt 2 is fastened on support beams 31 which are realized with load-bearing rollers 3 on their lateral ends. The load-bearing rollers 3 are moved along tracks, such as carrier cables 4 or rails. The lateral regions 22 of the conveyor belt 2 are held in their position as a result of support elements 32 being fastened on the support beams 31, the lateral regions 22 of the conveyor belt 2 abutting against said support elements.

As the deflection rollers 5 in the regions 52 that are associated with the lateral regions 22 of the conveyor belt 2 are realized with cross sections or diameters that are reduced in relation to the central regions 51, the conveyor belt 2 can be moved around the deflection rollers 5, although the lateral regions 22 thereof are held at angled position in the regions of the support beam 31. This is achieved as a result of the lateral regions 22 outside the support beam 31 being pivotable toward the deflection rollers 5 in relation to the central region 21 and the deflection rollers 5 comprising in their lateral regions 52 a smaller cross section or diameter than in the central regions 51, as a result of which, when the conveyor belt 2 is moved about the deflection rollers 5, a length adjustment is made possible in the lateral regions 22 of the conveyor belt 2. 9

It is consequently significant to the effects provided according to the invention that, in their lateral regions 52, the deflection rollers 5 comprise diameters or cross sections which are reduced in relation to the central region 51 or the diameters or cross sections thereof are modifiable . FIG. 5 and FIG. 5A show a deflection roller 5 which is realized in the laterally outside regions 52 with a diameter that is greatly reduced in relation to the central region 51. As a result, the lateral regions 22 of the conveyor belt 2 in the outer regions 52 of the deflection roller 5 can be pivoted-in radially in relation to the cylindrical surface of the central region 51 of the deflection roller 5. In this case, the difference between the two diameters can be equal to at least double the width of the lateral regions 22 of the conveyor belt 2. As a result, it is made possible that in the region of the deflection rollers 5, the lateral regions 22 of the conveyor belt 2 are pivotable radially inward so far out of their upwardly angled protruding position in relation to the central region 21 of the conveyor belt 2 that they are situated at a right angle with respect to said conveyor belt. FIG. 6 and FIG. 6A show a deflection roller 5 which is realized in the lateral regions 52 with ring-shaped concave annular grooves 53.

Also as a result of said realization of the deflection rollers 5, when the conveyor belt 2 with a support beam 31, which is realized with support elements 32 for the lateral regions 21 of the conveyor belt 2, is moved over the 10 deflection rollers 5, the desired length adjustment is achieved in the lateral regions 22 of the conveyor 2. FIG. 7, FIG. 7A, and FIG. 7B additionally explain a deflection roller 5a where the desired action of the length adjustment is achieved as a result of the lateral regions of the deflection roller 5a being realized with portions that are adjustable in the radial direction

As can be seen from FIG. 7, FIG. 7A, and FIG. 7B, according to said exemplary embodiment the deflection roller 5a is realized with a central region 51a which comprises a predefined diameter. In contrast, the lateral regions are divided into a plurality of segments 54 which comprise a part-cylindrically curved surface and which are mounted on the deflection roller 5a on an axis 55 so as to be adjustable in the radial direction in opposition to the action of a restoring spring 56.

As soon as, when the conveyor belt 2 moves about the deflection roller 5a, increased stresses occur in the lateral regions 22 as a result of the inclined position of said regions of the conveyor belt 2 on account of the fact that a support beam 31 runs onto the deflection roller 5a, said regions are pivoted in the radial direction toward the rotational axis of the deflection roller 5a, by means of the lateral regions 22 of the conveyor belt 2 by means of which the support elements 23 are not held in an angled position, as a result of which the segments 54 are pivoted in the radial direction toward the axis of the deflection roller 5a such that a length adjustment is brought about. 11

Claims

1. A conveyor system for transporting goods (10) by way of a conveyor belt (2) which is closed per se, is movable along tracks, such as carrier cables (4) or rails, by means of load-bearing rollers (3) and which is guided at the two ends of the system by means of in each case one deflection roller (5, 5a) , wherein the conveyor belt (2) is provided with support beams (31), which are aligned transversely relative to the direction of movement of said conveyor belt, on the lateral ends of said support beams the load-bearing rollers (3) are mounted and wherein the lateral regions (2) of the conveyor belt (22) are aligned at an angle away from the central region (21) of the conveyor belt (2), as a result of which the conveyor belt (2) is realized in the manner of a trough in cross section, characterized in that the lateral regions (22) of the conveyor belt (2) are held at angled positions by means of supports (32) which are provided on at least part of the support beams (31) and in that the contact surfaces (52) of the deflection rollers (5, 5a) for the lateral regions (22) of the conveyor belt (2) which are located outside the central region (21) are realized with reduced cross sections compared to the central region (51) or are reducible in their cross sections in relation to the cross section of the central region (51) .

2. The conveyor system as claimed in claim 1, characterized in that at least one of the deflection rollers (5) is realized tapering conically from its central region (51) toward its ends.

3. The conveyor system as claimed in claim 1, characterized in that at least one of the deflection rollers (5) is realized with concave annular grooves (53) outside the central region (21).

4. The conveyor system as claimed in either of claims 1 and 2, characterized in that at least one of the deflection rollers (5) is realized with shoulders outside the central region (51), wherein the lateral regions (52) comprise a smaller diameter or a smaller cross section than the central region (51).

5. The conveyor system as claimed in claim 1, characterized in that at least one of the deflection rollers (5a) is divided outside the central region (51) into segments (54) which are adjustable radially inward against the action of a restoring force (56).

6. The conveyor system as claimed in one of claims 1 to 5, characterized in that the lateral regions (22) of the conveyor belt (2) are realized with recesses (23) which are penetrated by the support beams (31).