Stripper element mounted on a system of a stripping device

Conveyors: power-driven – Conveyor having impinging fluid to feed – shift or discharge... – Having cleaning means

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Details

B65G 4500

Patent

active

055181074

DESCRIPTION:

BRIEF SUMMARY
BACKGROUND OF THE INVENTION

The invention relates to a stripping element for placing on a system support or carrier of a stripping device for the discharge end of a conveyor belt, which has a stripping plate, which in the ready-to-operate position engages in stripping manner on the conveyor belt, a plate support, to whose upper end is fixed the stripping plate, a torsion spring joint on which the plate support is guided in pivotable and spring-loaded manner about a horizontal axis, a base on which is held the torsion spring joint and which is placed on the system carrier, a vertical adjustment device for the vertical adjustment of the stripping plate along a first axis, a pivot bearing for pivoting the stripping plate about a second axis for setting the parallelism of the stripping edge of the stripping plate with respect to the conveyor belt, the second axis forming an angle smaller than 90.degree. with the conveyor belt portion running onto the stripping plate.
European patent 254 977 discloses a stripping device for the return area of conveyor belts, which comprises an adjustable, fixed or resiliently mounted system carrier or support extending transversely to the conveyor belt running direction and a plurality of stripping elements in each case held on bases. The stripping elements are fixed in juxtaposed manner to the system carrier and in each case carry a stripping plate or disk set in stripping manner with respect to the conveyor belt movement direction. The stripping plates are mounted in pivoted manner by a torsion spring about an axis at right angles to the conveyor belt running direction and resiliently for an elastic deflection movement about said axis. A deflection movement is e.g. performed if obstacles adhering firmly to the conveyor belt strike the stripping plate. For the setting and engagement of the stripping plate on the associated belt area, each stripping element has a vertical adjustment device and for the preferably automatic setting of the parallelism of the stripping plate with respect to the conveyor belt has a pivot bearing for pivoting about an axis, which forms an angle smaller than 90.degree. with the conveyor belt portion running onto the stripping plate.
These known stripping elements have a high stripping capacity, because they also react rapidly to minor displacements of the conveyor belt underface or are easily adjustable and can automatically assume an optimum position for the stripping of impurities adhering to the conveyor belt.


SUMMARY OF THE INVENTION

The problem of the invention is to so further develop a stripping element of the aforementioned type that, in conjunction with easy assembly and disassembly of the stripping element and/or the plate support, a compact unit with a particularly simple vertical adjustment device is provided.
In the case of a stripping element of the aforementioned type this problem is solved in that the firs axis associated with the vertical adjustment device and the second axis associated with the pivot bearing are located on the same line. This leads to a compact unit, permitting in simple and space-saving manner both a vertical adjustment and an automatic pivoting of the stripping plate. The pivot bearing and vertical adjustment device can be constructionally combined. In addition, this unit is easy to assemble and fit and can therefore be easily replaced in the case of a defect, which leads to high maintenance friendliness.
According to a further embodiment of the invention the pivot bearing comprises a bearing bush connected to the system carrier and placed in non-rotary manner in a tube socket and a journal connected to the plate support and the stripping plate and pivotably mounted in the bush. This not only permits rational manufacture, but also a good transfer of the forces acting in operation with a space-saving construction.
It is particularly appropriate if the vertical adjustment device is constructed for the adjustment of the height of the journal with respect to the bearing bush and preferably a locking screw on the si

REFERENCES:
patent: 4359150 (1982-11-01), Bowman et al.
patent: 4533035 (1985-08-01), Reiter
patent: 4535883 (1985-08-01), Kerr
patent: 4633999 (1987-01-01), Perneczky
patent: 4696389 (1987-09-01), Schwarze
patent: 4768644 (1988-09-01), Cromm
patent: 4850474 (1989-07-01), Schwarze
patent: 5011002 (1991-04-01), Gibbs
patent: 5016746 (1991-05-01), Gibbs
patent: 5082106 (1992-01-01), Schwarze

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