US 5,096,048 AGranted

Conveyor

AssigneeKlockner-Becorit GmbH

InventorsHans Lachner, Hans G. Warnke, Jorg Richter

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Abstract

There is provided a self-propelled conveyor for use in mining operations having an endless revolving conveyor strand driven in its longitudinal direction by intermediate drives and guided on a conveyor frame which consists of segments multi-directionally pivotally connected to one another along the central longitudinal axis of the conveyor. The conveyor frame has downwardly extendible support elements which, for the conveying operation, lift the conveyor strand reversing in the lower stringer from the ground when the support elements are extended. For the transporting operation, the support elements are retracted so as to permit the strand to lie on the ground. Between the segments of the conveyor frame disposed in the front region of the conveyor there are steering cylinders by means of which the angle between these segments can be adjusted so as to direct the longitudinal direction of the conveyor.

Claims15

Dependent claims

A conveyor having a fixed length without a tensioner for chain thereof, said conveyor comprising:

(a) conveyor frame means having a fixed length and consisting of multi directionally articulated frame segments;
(b) a freely compressible, endless, guided chain having upper and lower stringers and consisting of chain links having driving surfaces, said chain links being interconnected by connecting link means which permit movement between individual chain links into an elongated and compressed state corresponding to first and second chain pitches, respectively;
(c) conveying elements connected to at least some of said chain links for conveying purposes;
(d) drive means for said chain consisting of a plurality of intermediate drives wherein each of said intermediate drives comprises a drive wheel;
and
(e) a plurality of drive teeth associated with each drive wheel and engaging in the upper and lower stringers of said chain so as to drive said chain, each of said drive teeth having driving surfaces and a profile adapted to allow smooth engagement with said chain as said chain enters said drive wheels when said chain is in the elongated state and in the compressed state, said drive teeth wedging between the driving surfaces of adjacent compressed chain links when said chain is in the compressed state of said second pitch so as to spread said links apart, said profile further allowing smooth disengagement from said chain as said chain leaves said drive wheels wherein the maximum amount of movement between individual chain link means is determined by the formula:
##EQU3## wherein:
e=the amount of movement,
t=the pitch of said drive wheel, and
z=the number of drive teeth of said drive wheel, where the number of teeth is at least ten, and
the top flanks of said drive teeth beginning in the region of the middle of the depth thereof are gradually symmetrically tapered in the direction of the tips thereof, deviating in the region of the tips from the toothing as determined for constant mesh by the amount of the displaceable movement between links.

8 more elements

A conveyor having a fixed length without a tensioner for a chain thereof, said conveyor comprising:

(a) conveyor frame means having a fixed length and consisting of multi directionally articulated frame segments;
(b) a freely compressible, endless, guided chain having upper and lower stringers and consisting of chain links having driving surfaces, said chain links being interconnected by connecting link means which permit movement between individual chain links into an elongated and compressed state corresponding to first and second chain pitches, respectively;
(c) conveying elements connected to at least some of said chain links for conveying purposes;
(d) drive means for said chain consisting of a plurality of intermediate drives wherein each of said intermediate drives comprises a drive wheel;
and
(e) a plurality of drive teeth associated with each drive wheel and engaging in the upper and lower stringers of said chain so as to drive said chain, each of said drive teeth having driving surfaces and a profile adapted to allow smooth engagement with said chain as said chain enters said drive wheels when said chain is in the elongated state and in the compressed state, said drive teeth wedging between the driving surfaces of adjacent compressed chain links when said chain is in the compressed state of said second pitch so as to spread said links apart, said profile further allowing smooth disengagement from said chain as said chain leaves said drive wheels wherein the maximum amount of movement between individual chain link means is determined by the formula:
##EQU4## wherein:
e=the amount of movement,
t=the pitch of said drive wheel, and
z=the number of drive teeth of said drive wheel, where the number of teeth is at least ten, and
the top flanks of the driving surfaces of said chain links beginning in the region of the middle of the depth thereof are gradually symmetrically tapered in the direction of the tips thereof, deviating in the region of the tips from the toothing as determined for constant mesh by the amount of the displaceable movement between links.

8 more elements

A conveyor having a fixed length without a tensioner for a chain thereof, said conveyor comprising:

(a) conveyor frame means having a fixed length and consisting of multi directionally articulated frame segments;
(b) a freely compressible, endless, guided chain having upper and lower stringers and consisting of chain links having driving surfaces, said chain links being interconnected by connecting link means which permit movement between individual chain links into an elongated and compressed state corresponding to first and second chain pitches, respectively;
(c) conveying elements connected to at least some of said chain links for conveying purposes:
(d) drive means for said chain consisting of a plurality of intermediate drives wherein each of said intermediate drives comprises a drive wheel;
and
(e) a plurality of drive teeth associated with each drive wheel and engaging in the upper and lower stringers of said chain so as to drive said chain, each of said drive teeth having driving surfaces and a profile adapted to allow smooth engagement with said chain as said chain enters said drive wheels when said chain is in the elongated state and in the compressed state, said drive teeth wedging between the driving surfaces of adjacent compressed chain links when said chain is in the compressed state of said second pitch so as to spread said links apart, said profile further allowing smooth disengagement from said chain as said chain leaves said drive wheels wherein the maximum amount of movement between individual chain link means is determined by the formula:
E1 ? ##STR1## wherein:
e=the amount of movement,
t=the pitch of said drive wheel, and
z=the number of drive teeth of said drive wheel, where the number of teeth is at least ten, and
the top flanks of the drive wheel teeth and of the driving surfaces of said chain links beginning in the region of the middle of the depth thereof are gradually symmetrically tapered in the direction of the tips thereof, deviating in the region of the tips from the toothing as determined for constant mesh, the sum of the deviations of a drive wheel tooth and driving surface of said chain link being equal to the amount of the displaceable movement between links.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 07/613,952Filed 24 Oct 1990 · continuation
Priority: DE 32411296 Nov 1982
Granted: 17 Mar 1992
Term ends: Not estimatedThe source records don’t support an estimate.

Classification3 codes

B65G 19/28
Details: troughs, channels, or conduits
B65G 41/008
Means for moving conveyor frames and control arrangements therefor: frames mounted on wheels or caterpillar
B65G
Transport or storage devices