Abstract:
A belt conveyor copmrises an endless and closed conveyor belt (25) which is flexible essentially merely about axes which are parallel with the transverse direction of the belt (25), a tower (2; 70; 75), an inner arm (3; 64) supported by the tower (2; 70; 75), and an outer arm (6; 66) supported by the inner arm (3; 64) and positioned substantially in a vertical plane through the inner arm (3; 64). The conveyor belt (25) follows a path from the tower (2; 70; 75), via the inner arm (3; 64) and the outer arm (6; 66) to a distal end of the outer arm (6; 66) and back via the outer arm (6; 66) and the inner arm (3; 64) to the tower (2; 70; 75). Two first deflection rollers (10, 11; 65, 68) for the conveyor belt (25) are supported side by side at an intersection of the inner arm (3; 64) and the outer arm (6; 66) and has a common axis of rotation (12, 13) which is perpendicular to said vertical plane. A first terminal roller (18; 67) for the conveyor belt (25) is supported at a distal end (20) of the outer arm (6; 66) and has an axis of rotation (19), which is positioned in said vertical plane.
Abstract:
A chain with mutually connected chain links (1, 2) each comprising a back portion and two parallel wall portions protruding substantially perpendicularly therefrom, in which wall portions corresponding rivet holes have been provided in each of the two and members of the chain link, wherein the chain links (1, 2) are connected with one another by means of an end member of a chain link with a comparatively narrow (2) back portion which is inserted into an end member of a neighbouring chain link with a comparatively broad back portion (1) such that the rivet holes (1c, 2c) in the parallel wall portions of the two end members (1a, 1b, 2a-2b) are positioned opposite one another for engaging a river (3) or a shaft member. By use of rivets or shaft members of such a length that the rivet (3) may be axially retained by deformation of areas of said wall portions (1a-1b) around the rivet holes (1c) from the exterior side for reducing the clear opening of the rivet holes, a chain is produced by use of less material and at subsequently reduced costs relative to chains hitherto known.
Abstract:
The invention relates to a guide roller for automated repositioning of a conveyor belt (4) that has moved off centre on the conveyor. The guide roller is provided with a central bearing, which allows the roller to be pressed downward on the end where the misaligned belt is. In addition, the roller is provided with a central bearing implemented by means of a pin (9), or the like, to allow the roller to pivot about a rotation axis (10) of the pin in the direction of the belt surface. Since the rotation axis is arranged at a specific angle, i.e. a guide angle (k), with respect to the belt, the roller also pivots in the direction of the belt surface at the same time when it is pressed downward. In prior art solutions the guide angle is 45 DEG , whereas according to the inventive idea the guide angle (k) is between 10 and 40 DEG . In addition, a preferred embodiment of the invention is based on the idea that the magnitude of the guide angle (k) can be adjusted within that range.
Abstract:
The invention relates to a chain element for a conveyor chain, especially for a mat conveyor chain, comprising a support plate (2) which is provided with several gudgeons (5) on both of its longitudinal edges (4) which are oriented crosswise to the running direction. Said gudgeons are located adjacently to each other and at a distance from each other and have bores (8) for receiving a hinge pin (20), said bores being flush with each other. The gudgeons (5) of one longitudinal edge (4.1) are offset from the gudgeons (5) of the other longitudinal edge (4.2). At least one gudgeon that is allocated to a side edge (6) of the support plate (2) respectively is provided with a cross bore (9), this cross bore running crosswise to and intersecting the hinge pin bore (8) and a pin-shaped locking element (7) being located in said cross bore.
Abstract:
An interwoven belting fabric (100) for use in conveyors, including treadmills, is constructed of a dual layer of weft yarns (105, 106) and a plurality of binder warp yarns (120-122) and each binder warp yarn extends over an upper weft yarn and a plurality of lower weft yarns.
Abstract:
Endless belts having driving surfaces comprising a high temperature flexible thermoplastic composite, which belts exhibit reduced noise, reduced frictional heat generation, improved dimensional stability and improved abrasion resistance compared to known belt constructions. More particularly, an endless toothed belt having a high temperature-, abrasion- and noise resistant cover element, and which comprises from about 60 percent to about 100 percent by weight of the composite of a high temperature flexible thermoplastic material and from about 0 percent to about 40 percent by weight of the composite of a frictional modifier system, and methods for constructing such belts. Such belts include elastomeric body portions which may preferably be formed from suitable polyurethane materials.
Abstract:
The invention relates to a cleaning conveyor (1) for a belt conveyor (2). The belt conveyor (2) comprises an endless conveyor belt (8) which revolves between driving drums and tail pulleys (4, 6) and in its lower area forms a first feeding section (10). The cleaning conveyor (1) further comprises an endless cleaning conveyor belt (7) which also revolves between driving drums and tail pulleys (3, 5, 31, 33) and whose conveying strand (9) forms a second feeding section (11) below the working area (12) of the belt conveyor (2). The aim of the invention is to create a low-maintenance cleaning conveyor which is economical to run. To this end the conveying strand (9) of the cleaning conveyor belt (7) forms a feeding slot (13) in the second feeding section (11) with the return strand (14) of the conveyor belt (8). A plurality of idle pulleys (151, 152, 153 to 15n) changes the direction of movement of the transport strand (9) around the driving drum (4) at the beginning of the first feeding section (10) of the belt conveyor (2) such that return material falling off the belt conveyor (2) is collected on the transporting strand (9) of the cleaning conveyor (1), transported into the feeding slot (13), received between the carrying side (17) of the conveying strand (9) of the cleaning conveyor belt (7) and the carrying side (16) of the return strand (14) of the belt conveyor belt (8), and then placed onto the conveyor belt (8) of the belt conveyor (2) in the first feeding section (10).
Abstract:
A belt (10) for use in a conveyor system has ribs (12, 14, 23, 24, 26, 30) to aid in the training of the belt. The invention comprises a belt (10) with a body (18) having an inner surface (16), an outer surface, and a first set of longitudinal ribs (12, 14, 23) disposed on the inner surface (16) of the belt. The ribs function to lessen the surface area of the belt contacting a roller (32) of the system during the training period. Accordingly, the new belt adheres to the rollers of the conveyor system less aggressively, reducing lateral coplanar forces having the potential to damage the belt and/or the conveyor system. The height of the ribs with respect to the body diminishes over time due to normal frictional wear during the use of the belt in the conveyor system. In some embodiments, the belt includes a second set of ribs (24, 26, 30) disposed on the outer surface (28) of the belt. The height of the second set of ribs with respect to the body also diminishes over time due to normal frictional wear during the use of the belt in the conveyor system. The sets of ribs may comprise two ribs (12, 14, 24, 26) running along the edges (20, 22) of the belt. A wider belt may require additional ribs (23, 30) located between the two edge ribs. The belt may be used in a system of rollers (32) and training guides (34). The training guides (34) function to maintain the alignment of the belt with respect to the rollers.
Abstract:
A lifting apparatus (10) for lifting an endless conveyor belt (11) supported on a support frame structure (15) including two spaced apart frame members (33). The lifting apparatus (10) comprises a lower beam member (57) for extending between and resting on the two frame members (33) and an upper beam member (53) for engaging a section of the conveyor belt (11) to be lifted. A jack means (59) is operable between the two beam members (53, 57) for selectively moving the two members towards and away from each other between extended and contracted conditions. The jack means (59) comprises two telescopic rams (61) disposed to extend outwardly of the two beam members (53, 57) when in the contracted condition. This allows the two beam members (53, 57) to assume a compact arrangement when in the contracted condition.
Abstract:
A device for transporting objects (12, 21) in an orderly manner, said objects being delivered by feed means (11). The device includes a first moving conveyor belt (13, 22) for conveying the objects from a receiving area to a discharge area, and an assembly (15, 23) for guiding and/or supporting said objects, said assembly being substantially parallel to the first conveyor belt (13, 22) at least in the region of said receiving area, and the spacing between the first conveyor belt and the guide assembly being substantially equal to one dimension of the objects. The guide assembly may be a second moving conveyor belt (15) or a guiding and supporting drum (23).