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US 8,464,861 B2Granted
Vibratory conveyor
AssigneePer Brunes
InventorKarl Johan Christer Bonn
Life of this patent
Estimating the term…
Abstract
A balanced vibrating conveyor apparatus is provided by using a torsion bar spring and rocker arm for conveyor trough and balancing weight. The design provides synchronized 180° out of phase vibrations of trough and balancing weight as well as balance at variations in stroke lengths. With a torsion bar spring at the rocker arm node point, dynamic forces are minimized in the conveyor frame, as well as the building support structure.
Claims28
A vibratory conveyor comprising:
- (a) a frame;
- (b) a first conveying member mounted on said frame and having a conveying surface;
- (c) a source of vibratory force for providing vibratory movement to said conveying member;
- wherein said first conveying member is pivotally connected to a counterweighting member by a plurality of connecting arms, each connecting arm being pivotally connected to said first conveying member at a first axis of rotation, to said counterweighting member at a second axis of rotation and being biased for oscillating motion about a third axis of rotation.
1 more element
A method of conveying material comprising:
- a) providing a vibratory conveyor comprising a frame, and a source of vibratory force for providing vibratory movement to a conveying member comprising a conveying surface, the conveying member being pivotally connected to a counterweighting member by a plurality of connecting arms, each connecting arm being pivotally connected at one end thereof to said first conveying member at a first axis of rotation, to said counterweighting member at a second axis of rotation and being biased for oscillating motion about a third axis of rotation;
- b) applying vibratory movement to the conveying surface and thereby applying corresponding vibratory movement to the counterweight member until a steady state oscillation about said third axis of rotation is reached;
- and iii) either before or after step ii) transferring the material to or placing the material on the conveying surface.
A vibrating conveyor, comprising:
- a) a frame;
- b) a first conveying member mounted on said frame and having a conveying surface, said first conveying member forming a first mass;
- c) a source of vibratory force for providing vibratory movement to said conveying member,
- d) a second mass, joined by a plurality of connecting arms to said first mass, whereby said two masses oscillate in opposite directions;
- wherein said masses oscillate about a stationary node point located on each said connecting arm thereby providing synchronized movement in opposite directions of the two oscillating masses, and wherein said connecting arms are connected to torsion bar spring elements at the node point of said connecting arms to produce a balanced vibrating system.
2 more elements
A vibrating conveyor, comprising:
- a) a frame;
- b) a first conveying member mounted on said frame and having a conveying surface, said first conveying member forming a first mass;
- c) a source of vibratory force for providing vibratory movement to said conveying member,
- d) a second mass, joined by a plurality of connecting arms to said first mass, whereby said two masses oscillate in opposite directions;
- wherein said masses oscillate about a stationary node point located on each said connecting arm thereby providing synchronized movement in opposite directions of the two oscillating masses;
- and
- wherein said second mass is joined by a plurality of connecting arms to said first mass at first and second axes of rotation, and said torsion bar spring elements are attached to said connecting arms at one or more of said first and second axes of rotation and said node points to produce a balanced vibrating system.
4 more elements
Dependencies are inferred from the claim text.