RU2538490C1 - Bent conveyor belt - Google Patents

Abstract

FIELD: machine building.

SUBSTANCE: bent conveyor belt contains a carrying frame, boards, non-working lining, working lining with sections of standard and smaller width located periodically with a fixed or variable step. The sections of smaller width of the working lining are located along one or both boards and have in the belt plane the oval or polygonal shape with rounded angles. The working lining has places for fixing of conveyor carriages located between the sections with smaller width of the working lining with a step equal to the step between such sections.

EFFECT: improvement of efficiency of bent conveyor belts due to prevention of load spill.

2 cl, 10 dwg

Description

The invention relates to mechanical engineering, namely to conveyor belts with a curved track.

Known conveyor belts containing a supporting frame in the form of fabric gaskets or steel cables, protective linings and sides. As a material connecting fabric gaskets or steel cables, layered rubber, polymeric materials based on polyvinyl chloride are used. Protective linings and sides are made of rubber and other polymeric materials [1].

These conveyor belts are used on conveyors with both straight and curved paths [2, 3]. At the same time, on sections of the track curved in horizontal or inclined planes, the compressed side of the tape bulges toward the longitudinal axis of the tape. This causes the load to spill.

The disadvantage of these conveyor belts is their inefficient use on conveyors with a curved path due to buckling of the compressed bead of the belt towards the longitudinal axis of the belt.

Known tapes for conveyors with an increased angle of inclination, containing a supporting frame in the form of fabric gaskets, protective linings and sides. The load-bearing surface of the protective cover has protrusions of various shapes to hold the load on the tape [4].

The presence of randomly located protrusions of various shapes on the load-bearing surface of the protective lining does not prevent the buckling of the compressed side of the tape towards the longitudinal axis of the tape. The disadvantage of these conveyor belts is also their inefficient use on conveyors with a curved path due to buckling of the compressed bead of the belt towards the longitudinal axis of the belt and the spillage of cargo.

The objective of the invention is to increase the efficiency of the tape on conveyors with a curved path.

The curved conveyor belt includes a supporting frame, working and non-working plates, sides.

According to the invention, the working plate has sections of smaller thickness, periodically located along one or both sides with constant or variable pitch and having an oval or polygonal shape with rounded corners, while the thickness of the working plate in each section is constant or variable.

The thickness of the working lining of the plot gradually decreases towards the adjacent board.

When implementing the invention, a technical result can be obtained, which consists in increasing the efficiency of the tape on conveyors with a curved path.

The specified technical result is achieved by the fact that in the curved sections of the route there is no buckling of the compressed side of the tape towards the longitudinal axis of the tape, so the load is held on the tape and does not wake up.

Figure 1 shows a tape of a curved conveyor with sections located along one side (top view of the tape in a flat state);

figure 2 is the same;

figure 3 - tape curved conveyor with sections located along both sides (top view of the tape in a flat state);

figure 4 - tape curved conveyor with sections located along one side (cross section aa in figure 2). The thickness of the working lining of the site is constant;

figure 5 - tape curved conveyor with sections located along one side (cross section aa in figure 2). The thickness of the working lining of the plot is variable;

figure 6 - tape curved conveyor without sections with a smaller thickness of the working lining and without load in a curved state (top view). The compressed side of the tape is bulged towards the longitudinal axis of the tape;

figure 7 - tape curved conveyor without cargo in a curved state (top view). The compressed side of the tape is bulged away from the longitudinal axis of the tape;

on Fig - tape curved conveyor with the load in a curved state (top view). The compressed side of the tape is bulged away from the longitudinal axis of the tape;

figure 9 - tape curved conveyor with the load in a curved state (cross section aa in Fig. 8. Enlarged). The compressed side of the tape is bulged away from the longitudinal axis of the tape;

figure 10 - tape curved conveyor with the load in a curved state (isometry). The compressed side of the tape is bulged away from the longitudinal axis of the tape.

The curved conveyor belt includes a supporting frame 1, a working 2 and a non-working 3 protective plates, sides 4 and 5. The thickness of the working plate 2 is greater than the non-working plate 3.

The working cover 2 has sections 6 of smaller thickness, located periodically along one side 4 (figure 1, figure 2) or both sides 4 and 5 (figure 3).

Depending on the conveyor route, one side 4 or both sides 4 and 5 of the belt undergo compression on curved sections of the route. Sections 6 are placed along one side 4, if only it experiences compression on curved sections of the route. Sections 6 are placed along both sides 4 and 5, if both sides 4 and 5 experience compression on the curved sections of the route.

Sections 6 are located along one side 4 or both sides 4 and 5 periodically with constant or variable pitch t. The value of step t is equal to the step of fastenings 7 of the conveyor carriages (conveyor carriages are not shown in the drawings).

Sections 6 with a smaller thickness of the working plate 2 have an oval or polygonal shape with rounded corners. For example, figure 1 shows sections 6 of a rectangular shape with rounded corners. Figure 2 and figure 3 shows sections 6 of a triangular shape with rounded corners.

The thickness of the working plate 2 in each of the sections 6 can be constant (figure 4) or variable (figure 5). For example, the thickness of the working plate 2 of section 6 gradually decreases towards the adjacent board 4 (figure 5).

The optimal shape of sections 6 and the thickness of the working plate 2 in sections 6 depend on the mechanical properties of the belt, the curvature of the conveyor path.

The curved conveyor belt is used as follows.

In curved conveyors on the sides 4 and 5 of the tape, fastenings 7 of the conveyor carriages are installed, for example, using brackets or rivets (not shown in the drawings).

When using conventional conveyor belts in curved conveyors with protective plates of constant thickness on a curved path, the compressed side 4 is buckled towards the longitudinal axis 8 of the belt (Fig. 6). This leads to a decrease in the distance between the sides 4 and 5 and the spillage of cargo 9.

When using the proposed tape with sections 6, fasteners 7 are installed between sections 6 (Fig. 7) so that sections 6 are located periodically along one side 4 or both sides 4 and 5 with a step t equal to the installation step of the fasteners 7.

Since the conveyor carriages move along rigid guides, for example, pipes (not shown in the drawings), on curved sections of the track, the tape retains the specified cross-sectional shape at the mounting points of the fasteners 7.

When compressing the side 4 between the fasteners 7 it is bulging away from the longitudinal axis 8 of the tape. This leads to an increase in the distance between the sides 4 and 5 and eliminates the spillage of cargo 9 (Fig. 8, Fig. 9, Fig. 10).

The technical and economic advantage of the claimed invention is to increase the efficiency of the tape on conveyors with a curved track by preventing the spillage of cargo.

Sources of information used in the preparation of the application

1. Conveyor belts / F.A. Makhlis, I.I. Leonov, O.G. Karbasov, V.V. Nikitin. - M.: Chemistry, 1991.- p. 47-76.

2. RF patent No. 2270797, IPC 7 В65G 17/02, BI No. 6, 2006.

3. RF patent No. 2209752, IPC 7 B65G 15/60, BI No. 22, 2003.

4. Spivakovsky A.O., Dyachkov V.K. Transporting machines. - M.: Mechanical Engineering, 1983. - p.149.

Claims (2)

1. Tape of a curved conveyor, including a supporting frame, sides, a non-working lining, a working lining with sections of regular and smaller thickness, located periodically with constant or variable pitch, characterized in that the sections of a smaller thickness of the working lining are located along one or both sides and have the plane of the belt is oval or polygonal with rounded corners, the working plate has places for attaching conveyor carriages located between sections of a smaller thickness of the working plate with a step equal to the step between do such sites. 2. The curved conveyor belt according to claim 1, characterized in that the thickness of the working lining of the section of lesser thickness decreases towards the adjacent side.

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