RU2239591C1 - Belt-and-chain conveyer - Google Patents

Abstract

FIELD: conveyer equipment.

SUBSTANCE: belt-and-chain conveyer comprises flight with end rolls and star members, pull chains connected with sleeve bearings installed on closed flight guiders and load-bearing belt secured to frame formed of transversal resilient strips connected to sleeve bearings. Sleeve bearings are connected in pairs along guiders by connection chains having end parts secured to pull chains by C-shaped clips. Pull chains are supported by guiding rollers, which are arranged on flight. Load-bearing belt is composite and includes strip parts or flexible plates overlapped between transversal resilient strips connected to paired sleeve bearings. Load-bearing belt is supported by roller bearings between guiders. Legs of C-shaped clips are T-shaped and turned relative clip plane. Roller bearings have rollers secured to ends of resilient beams. Strip parts or flexible plates are freely overlapped between transversal resilient strips.

EFFECT: increased reliability and service life, reduced labor, mounting and maintaining inputs.

4 cl, 9 dwg

Description

The invention relates to conveyor transport, and in particular to chain conveyors.

Known plate conveyor [1], including the stand, at the ends of which are installed drive and tension sprockets, traction chains and load-bearing flooring. The load-bearing flooring consists of plates connected to traction chains enveloping the sprockets. Traction chains are closed in a vertical plane and are equipped with supports moving along the guides of the stav.

The disadvantages of this conveyor are large dynamic loads acting on a rigid load-bearing flooring, usually made of steel. In addition, the relative displacements of the flooring plates on the transitional and end sections of the conveyor lead to spilling of the load, contamination of the conveyor, intensive wear of the joints and chains.

Closest to the proposed technical solution is the conveyor [2], including the stand, sprockets, intermediate drives that transmit traction to the traction chain connected to supports mounted on closed guides of the stav, and a load-carrying tape mounted on a frame made of transverse elastic bands connected to said supports.

The disadvantage of this conveyor is the limited range of widths of its belt. The specified drawback is due to limitations of standards and the nomenclature of enterprises engaged in the manufacture of load-carrying tapes. In addition, the load-carrying belt of the said conveyor is subject to large dynamic loads (especially in the places of its loading), due to the insufficient flexibility of the load-carrying belt.

The objective of the invention is to expand the range of widths of the conveyor belt and reduce the dynamic loads on the belt and other elements of the conveyor.

This problem is solved in that the belt-chain conveyor comprises a stand with end drums and sprockets, traction chains connected to sliding supports mounted on closed guides of the stav, and a load-bearing tape fixed on a frame made of transverse elastic bands connected to sliding supports .

According to the invention, the sliding bearings are connected in pairs along the guides with connecting chains, the end branches of which are connected with C-shaped brackets with traction chains resting on the guide rollers mounted on the stand, and the load-carrying tape is made of a combined assembly and includes pieces of tape or elastic plates overlapping between transverse elastic strips connected to paired sliding bearings, and rests between the rails on the roller bearings.

The legs of the C-shaped staples are T-shaped and rotated relative to the plane of the bracket.

Roller bearings are equipped with rollers fixed to the ends of the elastic beams.

Pieces of tape or elastic plates overlap between transverse elastic bands freely.

When carrying out the invention, a technical result can be obtained, consisting in the fact that the proposed belt-chain conveyor can be made with a load-carrying prefabricated tape of an arbitrary non-standard width, including with a prefabricated tape whose width exceeds the width of the produced standard tapes. For example, the proposed belt-chain conveyor can be equipped with a load-bearing prefabricated belt 10-15 m wide or more, composed of pieces of a standard conveyor belt 1 m wide.

At the same time, a load-bearing prefabricated belt can be assembled both from pieces of a standard conveyor belt (including from segments of a low-strength rubber-fabric conveyor belt without rubber sides), and from elastic plates made of rubber without reinforcing cord, tarpaulin, plastic or other materials. In all cases, the elements of the load-carrying precast tape do not have connecting seams. In addition, by increasing the flexibility of the load-carrying belt in the inventive conveyor, the dynamic loads on the belt are reduced, especially in places where the conveyor is loaded.

In addition, the traction chains connected to the sliding supports mounted on both rails provide uniform tension of the load-carrying prefabricated tape along its width, increasing its strength.

Figure 1 shows a General view of the belt-chain conveyor; figure 2 is the same side view; figure 3 is the same, a top view; figure 4 is the same, cross section; figure 5 - the connection node of the sliding support with a traction chain and a transverse elastic strip; Fig.6 is an element of the linear part of the conveyor, including guides with sliding bearings, a frame of transverse elastic bands, traction chains and connecting chains; figure 7 - C-shaped bracket; on Fig - connection of the edges of the segments of the tape staples (section); figure 9 - free overlap of the edges of the segments of the tape (section). In figure 1 and figure 3, part of the load-carrying tape conditionally not shown.

The belt-chain conveyor comprises a stand 1 with end drums 2, drive sprockets 3, end sprockets 4 and guides 5 closed in a vertical plane. The guides 5 have a tubular section and are rigidly fixed to the posts 6 of stand 1 (Fig. 4). The traction chains 7 move between the guide rollers 8 and 9. In this case, the rollers 8 have a cylindrical surface, and the rollers 9 have a surface with a groove. The traction chains 7 are closed in a vertical plane, cover the drive and end sprockets 3, 4 and are connected to the sliding bearings 10, 11 mounted on the guides 5.

The sliding bearings 10, 11 are connected in pairs along the guides 5 by connecting chains 12, the middle links of which 13 are threaded through the T-shaped brackets 14 of the sliding bearings 10, 11 (Fig.6). The end branches 15, 16 of the connecting chains 12 are connected by C-shaped brackets 17 to the traction chains 7. The legs 18 of the C-shaped brackets 17 are T-shaped and rotated relative to the plane of the C-shaped bracket 17 (Fig.7). With each pair of sliding supports 10 and a pair of sliding supports 11 mounted on different guides 5, transverse elastic bands 19 and 20 are pivotally connected by means of a swivel bracket 21, an axis 22 and brackets 23 (FIG. 5). At significant loads, the strips 19 and 20 can be made, for example, of spring and hardened steel.

The load-carrying prefabricated belt 26 includes an upper working 24 and lower non-working 25 branches, separated by end drums 2. The load-carrying prefabricated belt 26 can be made of pieces of a standard conveyor belt (including a low-strength rubber-fabric conveyor belt without rubber beads) or composed of elastic plates, made of rubber (without reinforcing cord), tarpaulin, plastic or other materials connected to the transverse elastic bands 19, 20 by brackets 27.

The elements of the load-carrying precast belt 26 (segments of the conveyor belt or elastic plates) in the area between the elastic transverse strips 19 and 20 connected to the pair of sliding bearings 10 and 11 are overlapped by the edges 28, 29 cut by a step. The edges 28 and 29 are interconnected by brackets 30 (Fig. 8). With a small distance between the transverse strips 19 and 20, the edges 28 and 29 overlap freely (Fig. 9).

Due to the fact that the elements of the load-bearing prefabricated tape 26 are parallel to the transverse strips 19, 20, the load-bearing prefabricated tape 26 can be made of any desired width without longitudinal joints. In this case, the transverse connecting seams of the load-bearing tape are formed by overlapping edges 28, 29.

The working branch 24 of the load-carrying precast tape 26 between the guides 5 rests on the upper supporting rollers 31 fixed at the ends of the beams 32. The non-working branch 25 of the load-carrying precast tape 26 is supported by the lower supporting rollers 33 fixed on the stand 1, which bend the middle of the non-working branch 25 up (FIG. 4), thereby unloading the sliding supports 10 and 11 and giving the ribbon a grooved shape.

Belt-chain conveyor operates as follows. The drive sprockets 3 drive the traction chains 7, which move along the guide rollers 8, 9. The traction chains 7, by means of the connecting chains 12, move the sliding bearings 10, 11. In this case, the end branches 15, 16 of the connecting chains 12 hold the sliding bearings 10 , 11 at a nominal distance from each other. C-shaped brackets 17 provide a movable and quick-disconnectable connection of the end branches 15, 16 with the traction chains 7. The legs 18 of the T-shape are rotated relative to the plane of the C-shaped bracket 17, therefore they do not allow spontaneous disconnection of the end branches 15, 16 from the traction chains 7.

The sliding bearings 10, 11 slide along the guides 5. Together with the sliding bearings 10, 11, a frame of transverse elastic strips 19, 20 and the elements of the load-carrying prefabricated belt 26 connected to them move. The connecting chains 12 connect the sliding bearings 10, 11 in pairs and transmit traction force from the first along the sliding support 10 to the second sliding support 11. In this case, the edges 28, 29 of adjacent elements of the load-carrying prefabricated belt 26 remain unloaded with traction.

On the working branch 24, the transverse elastic bands 19, 20 and the elements of the load-carrying prefabricated tape 26 bend under the action of the load and its own weight, forming a trough (figure 4). This increases conveyor performance. To limit the deflection of the load-bearing branch of the prefabricated tape 26 between the guides 5, upper support rollers 31 are installed under it. To increase the flexibility of the working branch 24 of the load-bearing branch of the prefabricated tape 26 and reduce dynamic loads, the upper support rollers 31 are fixed at the ends of the elastic beams 32. At the same time, the beams 32 provide the elastic interaction of the upper supporting rollers 31 with a moving load-bearing prefabricated tape.

The flexibility of the transverse elastic bands 19 and 20, the possibility of their rotation relative to the sliding supports 10 and 11, the ability to rotate the sliding bearings themselves 10 and 11 relative to the guides 5 and the flexibility of the upper supporting rollers 31 provide high overall flexibility of the working branch 24 of the load-bearing collecting tape 26 in the vertical direction. Therefore, when pieces of cargo fall at the loading points of the conveyor, the load-bearing assembly tape bends without hard impact on it of pieces of cargo. At the end drums 2, the transverse elastic strips 19, 20 are straightened and the load-bearing assembly tape 26 in these sections takes a flat shape. In this case, the sliding bearings 10, 11 rotate relative to the longitudinal axes of their guides 5. The hinged connection of the swinging arms 21 with the sliding supports 10, 11 allows the transverse elastic bands 19, 20 to rotate relative to the sliding supports 10, 11. The flexibility of the connecting chains 12 allows the sliding supports 10, 11 to freely pass rounding of the guides 5 and rotate relative to the guides 5 in the transition sections.

The middle of the non-working branch 25 of the load-carrying precast tape 26, the lower support rollers 33 bend up. In this case, the sliding bearings 10, 11 of the non-working branch 25 occupy a mirror position with respect to the supporting sliding bearings 10, 11 of the working branch 24. This allows the posts 6 to be positioned vertically, without interfering with the passage of the sliding bearings 10, 11.

The unloading of the belt-chain conveyor is carried out by pouring cargo through the end drum 2.

Since the traction force is transmitted by the traction chains 7 and the connecting chains 12, the elements of the load-carrying prefabricated belt 26 perceive only vertical loads from the transported cargo. Therefore, the load-bearing prefabricated belt 26 can be made, for example, in the form of a set of segments of a typical conveyor belt (including rubber fabric or frameless tape of low strength) or in the form of a set of plates of cheap elastic material. Since the elements of the load-carrying precast tape 26 overlap with the cut edges 28 and 29, the rubberized sides of the rubber fabric tape are not needed.

Due to the low tension of the load-carrying precast tape 26, the forces of its interaction with the end drums 2 are negligible. Therefore, there is no need to accurately set the end drums 2.

The technical and economic advantage of the claimed invention lies in the ability to equip the inventive belt-chain conveyor with a load-carrying prefabricated belt of any required or non-standard width, composed of pieces of low-strength cheap tape of standard width or plates of cheap elastic material. It also allows you to repeatedly reduce the complexity and costs during installation and repair of the conveyor. In addition, the reduction of dynamic loads on the assembly belt and other elements of the conveyor, especially in the places of its loading, increases the reliability and durability of the inventive belt-chain conveyor.

Sources of information

1. Spivakovsky A.O., Dyachkov V.K. Transporting machines. M.: Mechanical Engineering, 1983.- 487 p., P. 155.

2. Conveyor with hanging tape. Application for invention No. 2001124001 of September 3, 2001 or SU 1819838, June 7, 1993.

Claims (4)

1. A belt-chain conveyor comprising a stand with end drums and sprockets, traction chains connected to sliding bearings mounted on closed guides of the stav, and a load-carrying tape fixed to a frame made of transverse elastic bands connected to the sliding supports, characterized in that the sliding bearings are connected in pairs along the guides by connecting chains, the end branches of which are connected by C-shaped brackets with traction chains, supported by guide rollers mounted on the stand, and the load esuschaya belt is modular and includes segments of tape or elastic plate overlapping between the transverse elastic strips, connected to the pair of sliding bearings, and is supported between the guides on roller bearings. 2. The belt-chain conveyor according to claim 1, characterized in that the legs of the C-shaped staples are T-shaped and rotated relative to the plane of the bracket. 3. The belt-chain conveyor according to claim 1, characterized in that the roller bearings are equipped with rollers fixed to the ends of the elastic beams. 4. The belt-chain conveyor according to claim 1, characterized in that the segments of the tape or elastic plates overlap between the transverse elastic bands freely.

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