RU2649836C1 - High-angle belt conveyor - Google Patents

Abstract

FIELD: machine building.

SUBSTANCE: steeply inclined belt conveyor contains infinitely closed load-carrying and pressing belts. Load-bearing belt runs around drive and tension drums and is equipped with corrugated sides and transverse partitions. Transverse bulkheads are made in form of grippers, which are placed on flexible element, between which are located spacers. Flexible element is made in form of steel cable and is fixed with ends on opposite edges of metal strip, transversely mounted on carrying belt. Steel cable has length greater than tape width. Grippers have cylindrical shape and axial mounting hole. Load-bearing belt is located on sliding supports. Drives load-carrying and pressure tapes are made in form of chain drives and from single electric motor.

EFFECT: operational reliability of device and its productivity are increased by eliminating adherence of transported material onto conveyor belt and transverse partitions.

12 cl, 8 dwg

Description

FIELD OF THE INVENTION

The invention relates to hoisting and transport machinery, in particular to steeply inclined belt conveyors designed for the transportation of dusty, powdery, granular and small-sized, as well as low-loose fibrous bulk cargoes.

State of the art

From the prior art, steeply inclined belt conveyors of the FLEXOCON series manufactured by KMZKO JSC // URL: http://konmash.ru/flexocon_konvejer/ (accessed date: 12/13/2016) and LK-K series TULA CONVEYOR produced by StroyMehanika LLC "// URL: http://www.stroymehanika.ru/lkonv_lkk.php (accessed: December 13, 2016), containing an envelope of the drive and tension drums, an endless closed tape with corrugated sides and transverse partitions. Conveyors have high performance by increasing the cross-sectional area of the transported material. In addition, the design of the belts with corrugated sides allows them to easily bend around the conveyor drums.

A disadvantage of the known devices is the angle of the load lifting limited to 70 ° and the inability to transport bulk material of high humidity due to its sticking to the transverse partitions. With an increase in the angle of inclination, the productivity of conveyors is significantly reduced.

A steeply inclined belt conveyor (see patent JPS 6234514 U, IPC B65G 15/14, 02.28.1987) containing an envelope of the drive and tension drums endless closed load-carrying tape with corrugated corrugated tape was adopted as the closest analogue to the claimed device, by the presence of similar structural features. sides and transverse partitions, roller supports for tape and an additional clamping tape. The device allows you to increase the angle of elevation of the material up to 90 ° and increase the speed of movement.

The disadvantage of the prototype is the inability to transport material prone to sticking. Another disadvantage is the impossibility of observing the prerequisite for the normal operation of two-belt conveyors - the complete equality of the speeds of movement of the load-carrying and clamping belts, because the clamping tape does not have an independent drive and is driven by interaction with the transported cargo. In addition, when passing along the roller bearings, conveyor belts are deflected, which leads to involuntary spilling of the material.

Disclosure of invention

The claimed invention solves the problem of increasing the operational reliability of the device and its performance by eliminating the sticking of the transported bulk material on the conveyor belt and transverse partitions.

The problem is solved due to the fact that in a steeply inclined belt conveyor containing an envelope of the drive and tension drums, an infinitely closed load-carrying tape with corrugated sides and transverse partitions and a clamping tape, according to the claimed invention, the transverse partitions are made in the form of grippers worn on a flexible element with a gap between each other the flexible element ends mounted on opposite edges of a metal strip transversely mounted on a load-carrying tape, and the length of the flexible element b longer tape width.

The above set of essential features of the claimed invention allowed to obtain the following positive technical results.

Firstly, after the drive drum has passed with the load-carrying tape, the transverse partitions freed from the load due to the fact that their length is greater than the width of the tape, sag down under the action of gravity and swing. At the same time, the grips are shaken and self-cleaning. The gaps between the grips provide the required flexibility to the flexible element. In addition, the load-carrying tape, freed from the transverse partitions adjacent to it, is better cleared of the transported material when passing the drive drum. In addition, when swinging, the transverse partitions hit the tape and shake off the remaining particles of adhering material from it.

Thus, the above technical results together provide effective self-cleaning of the transverse partitions and the load-bearing tape and, therefore, can improve the operational reliability and performance of the steeply inclined belt conveyor.

A metal strip transversely mounted on a load-carrying belt to which a flexible element is attached protects the belt from damage at the points of attachment of the transverse partitions and gives the belt rigidity, thereby increasing the service life of an expensive conveyor belt.

It is preferable to make a flexible element in the form of a steel cable, the ends of which are bent to form a loop and secured by clamps, providing mobility and flexibility to the transverse partition.

The fastening of the flexible elements on the metal strips by means of fingers equipped with a limiter of axial movement of the loop-shaped ends of the flexible elements worn on them provides additional mobility to the flexible elements, since the loops are able to both longitudinally move along the fingers and swing motion relative to them due to the difference in their diameters. The movement limiters of the loop-shaped ends of the flexible elements prevent them from slipping during operation.

In the loops made at the ends of the steel cable, thimbles are embedded to protect it from abrasion and kink.

The grips have the possibility of longitudinal movement along the flexible element, thereby contributing to its cleansing from adhering material.

Remote bushings located in the gaps between the grippers do not allow them to crawl and clamp each other, allowing them to freely rotate around the steel cable. Impact and clarification of the grips, meanwhile, occurs through the bushings.

Due to the fact that the grippers are made in a cylindrical shape with an axial mounting hole, on the working branch of the load-carrying tape, all the mounting holes of each transverse partition (at any turn of the grippers) are at the same level. In this case, there are no excesses and kinks in the steel cable passing through the aforementioned holes, which is aimed at increasing its service life.

In order to prevent sticking of the material of high humidity, the grips are made of release material, for example polyurethane.

Since the load-carrying tape is located on the sliding supports, when transporting the cargo, it does not move and the load-bearing and pressure tapes do not diverge, which is aimed at preventing spillage and material leakage.

To reduce the friction force between the sliding bearings and the tape and to reduce the wear of the tape, the sliding bearings are lined with antifriction material, for example fluoroplastic.

It is advisable to divide the sliding supports into prefabricated longitudinal sections, which allow, as the production needs become, to quickly change the length of the conveyor and the height of the bulk cargo.

In the particular case of the implementation of the claimed invention, the drives of the load-bearing and clamping belts are made in the form of chain transmissions from a single electric motor, ensuring compliance with the mandatory conditions for the normal operation of two-belt conveyors - synchronous movement of the load-carrying and clamping belts.

Brief Description of the Drawings

The essence of the proposed technical solution is illustrated by drawings, which depict:

in FIG. 1 - the claimed device, General view;

in FIG. 2 - the claimed device, view A in FIG. one;

in FIG. 3 is the same, section BB in FIG. one;

in FIG. 4 - transverse partition;

in FIG. 5 - fastening the ends of the steel cable on a metal bar, a longitudinal section;

in FIG. 6 is a view B in FIG. 5;

in FIG. 7 is a view D in FIG. one;

in FIG. 8 - longitudinal section of the sliding bearings.

The implementation of the invention

The steeply inclined belt conveyor contains infinitely closed load-bearing 1 and pressure 2 belts. The load-carrying tape 1 goes around the drive 3 and tension 4 drums and is equipped with corrugated sides 5 and transverse partitions 6. The transverse partitions 6 are made as worn on the flexible element 7 with the possibility of longitudinal movement of the grippers 8, between which the spacer sleeves 9. The flexible element 7 is made in in the form of a steel cable and fixed by the ends on opposite edges of the metal strip 10, transversely mounted on the load-carrying tape 1, by means of the fingers 11. The ends of the steel cable are bent to form a loop, which the thimble 12 is enclosed and secured by means of clamps 13. The fingers are equipped with an axial displacement limiter 14 of the loop-shaped ends of the flexible elements worn on them. The steel cable has a length greater than the width of the tape 1. The grips 8 have a cylindrical shape, an axial mounting hole and are made of polyurethane. The load-carrying tape 1 is located on the sliding bearings 15, lined with antifriction material, for example fluoroplastic. Sliding bearings 15 are divided into prefabricated longitudinal sections. The drives of the load-carrying and clamping tapes are made in the form of chain transmissions 16 and 17 from a single electric motor 18.

The conveyor works as follows.

The cargo to be transported is fed to the conveyor in its receiving part. When approaching the inclined section, it is covered with a clamping tape 2, is captured by the transverse partitions 6 and rises up. In this case, the material is in a kind of cells formed by the sides 5 and partitions 6 of the tape, protecting the material from lateral spilling and sliding down. Since the movement of the load-carrying 1 and clamping 2 belts is provided by one electric motor 18, the belts move synchronously at the same speed. Above the material is unloaded. With the passage of the load-carrying tape 1 of the drive drum 3, it bends, the corrugation of the sides 5 moves apart and is cleaned of captured material particles. The flexible transverse partitions 6 “roll over” and, due to the fact that the steel cables 7 have a length greater than the width of the tape 1, swaying, sag down under the influence of its own weight. At the same time, the grippers 8 are shaken, cleaning themselves from the remnants of adhering material.

Thanks to the inventive device, it was possible to eliminate the sticking of the transported bulk material on the load-carrying belt and transverse partitions, leading to overgrowing of the compartments formed by the sides and partitions, and to weighting the belt, thereby increasing the operational reliability and performance of the steeply inclined belt conveyor.

Claims (12)

1. A steeply inclined belt conveyor containing an envelope of the drive and tension drums, an infinitely closed load-carrying tape with corrugated sides and transverse partitions and a clamping tape, characterized in that the transverse partitions are made as worn on a flexible element with a gap between each other grippers, the flexible element ends fixed to the opposite edges of a metal strip transversely mounted on a load-carrying tape, and the length of the flexible element is greater than the width of the tape. 2. The conveyor according to claim 1, characterized in that the flexible element is made in the form of a steel cable, the ends of which are bent to form a loop and secured by clamps. 3. The conveyor according to claim 1 or 2, characterized in that the flexible elements are mounted on metal strips by means of fingers equipped with a limiter of axial movement of the looped ends of the flexible elements worn on them. 4. The conveyor according to claim 2, characterized in that thimbles are embedded in the loops of the steel cable. 5. The conveyor according to claim 1, characterized in that the grips are worn on a flexible element with the possibility of longitudinal movement. 6. The conveyor according to claim 1, characterized in that in the gaps between the grippers are located remote bushings. 7. The conveyor according to claim 1, characterized in that the grippers are made of cylindrical shape with an axial mounting hole. 8. The conveyor according to claim 7, characterized in that the grippers are made of release material, such as polyurethane. 9. The conveyor according to claim 1, characterized in that the load-bearing tape is located on the sliding supports. 10. The conveyor according to claim 9, characterized in that the sliding bearings are lined with antifriction material, for example fluoroplastic. 11. The conveyor according to claim 9 or claim 10, characterized in that the sliding bearings are divided into prefabricated longitudinal sections. 12. The conveyor according to claim 1, characterized in that the drives of the load-bearing and clamping belts are made in the form of chain transmissions from a single electric motor.

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