FASTENER FOR MECHANICALLY LINKED CONVEYOR BELTS

Abstract

Fastener for the mechanical jointing of conveyor belts comprises two plates and two connecting elements, each plate has two identical through holes arranged as concave toward the inner surface of the plate and lugs for fixing to the surface of the conveyor belt, each connecting element is arranged in the form of a bolt the head of which corresponds to the fit socket of the upper plate. Both plates are flat with bosses in cylindrical form at the ends for compressing the conveyor belt ends in butt joint, the diameter of the bosses is larger than the width of the plate also having shaped bosses for fixation with conveyor belt placed in circular section by straight sections of its inner surface, each plate at circular sections is provided with holes arranged symmetrically between the profiled bosses, in the bottom plate both through holes are arranged with threading for a bolt.

Claims

1. The fastener for mechanical linking of conveyor belts, structurally comprising a set of two plates and the two connecting elements, each of the plates having two identical through holes concave toward the plate's inner surface, and each connecting element being shaped as a bolt which head corresponds to the upper plate's fit socket, at that each plate has bosses fixing it to the conveyor belt surface, and characterized in that both plates are flat and have at their ends the cylindrical embossments for joining the conveyor belt ends through connection joint; the embossments' diameter is larger than the width of the plate which also has shaped bosses for fixation with conveyor belt placed in circular section and by straight sections of its inner surface; the circular portion of each plate is additionally provided with holes arranged symmetrically between the profiled bosses, and the bottom plate's both holes are arranged with threading for a bolt.

Description

[0019] FIG. 1 shows the general view of PWS OPTIMA for conveyor belts mechanical joining.

[0020] FIG. 2 represents a lateral view of PWS OPTIMA for conveyor belts mechanical joining.

[0021] FIG. 3 represents a plan top and lateral view of the upper profiled plate.

[0022] FIG. 3 represents a plan top and lateral view of the bottom profiled plate.

[0023] FIG. 5 exposes the linkage between PWS OPTIMA and the conveyor belt. The claimed PWS OPTIMA for conveyor belts mechanical joining (refer to FIG. 1) includes two flat plates upper 1 and bottom 2 and two connecting elements 3, both shaped as a bolt. Plates 1 and 2 have two centerline-arranged through holes 4 for the coupling element 3 (refer to FIGS. 2, 3) configured as a bolt which head corresponds to the receiving hole 5 of the upper plate 1 (refer to FIGS. 3.4). The conveyor belt-facing surface of the upper and lower plates 1, 2 bears profiled projections 6 intended for plates engagement to the conveyor belt. At its end portion the head of bolt 3 has a hexagon socket 7 for the cap wrench. The bottom plate 2 is equipped with thread 8 for tightening bolts 3 (refer to FIG. 4) Each of the plates 1 and 2 bears additional through-holes 9, symmetrically arranged between the profiled protrusions 6.

[0024] The connection joint is assembled as follows: [0025] The conveyor belts' ends (refer to FIG. 5), subject to connecting, are cut at an angle of 90 with subsequent stepwise processing, degreasing and preparation for joining. Next, the plate 1 (together with bolt 3, further inserted into the conveyor belt opening) is overlaid onto upper belt side. On the lower conveyor belt side bolt 3 is screwed into the plate 2. Bolt 3 is screwed into the thread 8 located on the plate 2. Next, bolt 3 is further screwed to tighten plates 1 and 2 together. The similar tightening procedure is carried out with the second bolt 3. Thus, all fasteners OPTIMA are installed. The bolted joint assembling is rounded out by breaking off the upper plate bolts' protruding ends. [0026] The claimed technical result consists in following: the suggested PWS design for conveyor belts mechanical connection allows the safe operation of the conveyor at its belt strength up to 1600-2000 N/mm. Through-holes 9 arranged in the plates 1 and 2 allows the conveyor belt working surface penetrating through those holes when PWS pressed against the conveyor belt.

[0027] The exposed amount of invention allows achieving the technical result as follows [0028] increase in the rubber conveyor belts' connection joint tensile strength; [0029] decrease in the rubber conveyor belts' connection joint flatness distortion; [0030] shortened PWS montage time, since the lower and upper plates are visually and by-touch easily identifiable due to their different structural characteristics; [0031] sustained conveyor belts joining security and maintained joint integrity due to the fastener's structure specificity: absence of teeth on the plate's surface; [0032] provided possibility to carry out the belt's longitudinal ruptures repair.