RU201064U1 - BUCKET ELEVATOR (NORIA) FOR BULK MATERIALS - Google Patents

Abstract

Usage: for lifting material in the mechanization of production processes when reloading seeds, in elevators, mills, feed mills and cereal plants, in crop and livestock farming, in the processing, coal and chemical industries. , connected by elevator pipes with a receiving shoe, in which the second drum is located, a traction belt placed in the elevator pipes with buckets attached to it and a tension mechanism for the traction belt. The tension drum is installed in the head, and the drive drum is located in the shoe. As a tension and drive drums, drums according to the patent RU 192964 were used. Technical advantages: reduction of injury to grain material. 3 silt.

Description

The utility model relates to lifting and transport engineering, or rather, to continuous conveyor machines with a flexible traction body, namely, bucket elevators (elevators) designed for vertical movement of grain and other bulk materials, and can be used to lift material when mechanization of production processes in the production of seeds, in elevators, mills, feed and cereal factories, in plant growing and animal husbandry, in the processing, coal and chemical industries, in the manufacture of building mixtures, etc.

Known bucket elevator (bucket elevator) for bulk materials, containing a head with a driving drum and a drive station, connected by welded elevator pipes with a shoe with a driven drum, placed in the elevator pipes an endless belt with buckets mounted on it. The driving and driven drums are cylindrical and made of cast iron [see. book: Kulikov V.N., Milovidov A.E. Equipment for enterprises of the elevator and grain processing industry. - M .: VO "Agropromizdat", 1991. - S. 12-30].

The disadvantages of this bucket elevator (bucket elevator) are a high degree of injury to grain, a high fire hazard due to possible slipping of the belt on a smooth drum, and adhesion of spilled grain on the drum.

The closest in essence and the achieved effect, taken as a prototype, is a bucket elevator (elevator) for bulk materials, containing a head with a drive drum installed in it, connected by elevator pipes with a receiving shoe installed with the possibility of vertical movement along the elevator using a tension mechanism , and includes a body with a semicircular bottom and a tension drum located in it, a traction belt placed in the elevator pipes with buckets attached to it and fixed vertical guide posts located on both sides of the shoe, on which a supporting frame with elevator pipes mounted on it is installed ... The shoe is connected to the elevator pipes by means of a stationary box fixed on the supporting frame, installed with the possibility of vertical movement along the elevator by connecting the shoe body to the supporting frame using at least two tensioning drum tension mechanisms installed on both sides of the shoe, and supported on guide posts made in the form of channels through sliding bearings, the tension drum is installed with the possibility of vertical movement along the shoe body, the bottom of the body is removable, [see. pat. Russian Federation No. 2456222 for class B65G 17/02, B65G 17/30, published on July 20, 2012 in Byul. No. 20].

The prototype does not specifically describe the design of the drums, but it is presented in the patent RU 54922 U1 in the class B65G 17/02, B65G 17/36, published on July 27, 2006 in Bull. No. 21. The cylindrical surface of the driving and driven drums is made in the form of a set of separate plates installed with a gap and forming the drum surface. Grain that has fallen on the drum during the descent from the buckets spills into the gaps between the plates. These drums are also accepted as prototypes.

The main disadvantage of the known bucket elevator for bulk materials is trauma to bulk material due to the use of buckets with centrifugal discharge and damage to the material spilled onto the lower drum between the surface of the drum and the traction belt. The material that got into its internal cavity is not discharged from it, as a result of which it is injured.

The implementation of the drive and tension drums from separate rubberized plates in the known design of the bucket elevator allows to somewhat reduce the trauma of the transported material and the slipping of the traction belt and to increase the reliability of the adhesion of the drums to the traction belt. However, making the drums lamellar with gaps between the plates leads to the ingress of grain material into the cavity of the lower drum and does not exclude the possibility of grain getting between the traction belt and the drum, which leads to the destruction of grain material that has fallen under the plates (and injury of the material due to the lack of unloading from the cavity of the drum due to repeated movement of the material inside the cavity of the rotating drum), which is the second significant disadvantage of the known bucket elevator. In addition, making the drums plate-like, even rubber-coated, still does not completely solve the problem of traction belt slippage. When overloading oilseeds, some of the grains still fall under the traction belt on the surface of the tension drum, which are crushed and compressed and contaminate the material being transported, oil is squeezed out of them, which lubricates the surface of the rubber coating, which, as a result, leads to slipping of the traction belt and is also another disadvantage of the known bucket elevator.

The utility model is based on the task of further improving the design of the bucket elevator (bucket elevator) by reducing injury to grain material by replacing the location of the drive and tension drums and changing the design of these drums.

The solution to this problem is achieved by the fact that a bucket elevator (bucket elevator) for bulk materials, containing a head with a drum, connected by elevator pipes with a shoe, which houses a second drum, a traction belt located in the elevator pipes with buckets attached to it and a tensioning belt tension mechanism, According to the proposal, a tension drum is installed in the head, and a drive drum is placed in a shoe, with each drum formed by a set of V-shaped ribs located by vertices on the drum symmetry plane perpendicular to the drum rotation axis and directed along the drum rotation with a step that provides their mutual overlap, and the outer edges of the ribs form a barrel-shaped surface in contact with the traction belt, and the side surfaces of the ribs, when the drum rotates in contact with the traction belt, form inclined channels through which the seeds that have fallen into the inside of the drum are carried out by gravitational forces outside the drum, except addition to the center On the inner part of the drum, there is a support disk on which the tops of the V-shaped ribs rest, and also on the sides of the drum, side disks can be installed on which the edges of the V-shaped ribs rest.

Such drums completely exclude injury and mixing of grain material, and also provide a decrease in pulsations of the speed of the traction belt.

Due to the transfer of the drive drum to the shoe, grain trauma is reduced due to a decrease in the technological residue of the transported material.

The further essence of the utility model is explained in conjunction with the illustrative material, which shows the following: FIG. 1 is a general view of the proposed bucket elevator; fig. 2 - design of the bucket elevator head; fig. 3 - design of the drive drum drive.

A bucket elevator (elevator) for bulk materials consists of a head 1, a shoe 2, connected by elevator pipes 3, made in the form of bearing sections with channels 4 for a traction belt 5 with buckets 6, on one of the sections of which there is a control panel 7 for the operation of the bucket elevator. A tensioner 8 is mounted on the head 1, combined with lifting ears 9, and on the shoe 2 there is a drive station made in the form of a gear motor 10. A detachable feed hopper 11 adjoins the shoe 2. A quick-detachable hatch 12 is installed in the lower part of the shoe body 2 and paired slots 13 for transporting the assembled bucket elevator in a vertical position using, for example, a forklift truck (not shown). Under the shoe 2 there is a pull-out tray 14 for prompt cleaning of the shoe 2 if necessary, for example, when changing the type of transported material. The use of a quick-release hatch 12 and a pull-out pallet 14 in the structure eliminates the material being transported on the floor and the need to disassemble the shoe 2 for these purposes.

A tension drum 15 is installed in the head 1, which bends around the traction belt 5 with load-carrying elements attached to it - buckets 6. A drive drum 18 is installed in the shoe 2. The tension drum 15 and the drive drum 18 have the same design and consist of a hub 19, two end discs 20 with equally spaced cradles 21. In cradles 21 ribs 22 are installed, which diverge at an angle in different directions from the center of the drum 18 (15). The upper protruding ends of the ribs 22 are made convex, and form the ribbed surface of the drums 15 and 18 of a barrel-shaped (convex) shape.

On the axis 23 of the drive drum 18 is a gear motor 10.

Grain material is fed into the shoe 2 through the window 24 from the loading hopper 11. The consumption of the loaded material is regulated by the degree of filling the buckets 6 with the slide gate 30 and the speed of the traction belt 5.

The proposed bucket elevator works as follows:

Grain (or other bulk material) enters the shoe 2 from the loading hopper 11. The gear motor 10 rotates the drive drum 18 and drives the traction belt 5 with buckets 6 mounted on it. The buckets 6 smoothly enter the grain mass in the shoe 2 and they come out, scooping up grain from it. Buckets 6 with grain along the working branch of the traction belt 5 rise up the elevator pipes 3 into the head 1, where, when bending around the tension drum 15, they are unloaded into the unloading branch pipe.

In the presence of a reverse rash, the grains of bulk material randomly fall down, including onto the drive drum 18. Thanks to the ribbed chevron structure of the latter, the grains of material falling into the drum 18 end up on the inclined surfaces of the ribs 22, along which they slide outside the drive drum 18.

A significant difference between the proposed technical solution, from the previously known ones, is that the drive drum is located in the shoe, the drive and tension drums are made in the form of self-cleaning chevron wheels.The listed distinctive features, taken together, allowed to reduce the injury of grain material. None of the known belt elevators can have the noted properties, since they do not contain a fundamental set of essential features inherent in the claimed technical solution.

The proposed technical solution has been tested in practice. The declared bucket elevator (bucket elevator) for bulk materials does not contain units and parts that could not be reproduced taking into account the latest advances in science and technology, in particular, in the design of lifting and transport machines, therefore, the claimed technical solution is industrially applicable. In the patent documentation and other sources of scientific and technical information, no such bucket elevators with the above-described essential features have been identified, from which it follows that the claimed technical solution meets the "novelty" criterion.

The technical advantages of the claimed technical solution in comparison with the prototype include the following:

- elimination of mixing and reduction of injury to grain material due to the use of drums of a special design and a decrease in the technological volume of the transported material in the shoe.

Claims (1)

Bucket elevator (bucket elevator) for bulk materials, containing a head with a drum connected by elevator pipes with a shoe, in which a second drum is located, a traction belt placed in the elevator pipes with buckets attached to it and a tensioning belt tension mechanism, characterized in that it is installed in the head tension drum, and the drive drum is placed in the shoe, with each drum formed by a set of V-shaped ribs, located tops on the plane of symmetry of the drum, perpendicular to the axis of rotation of the drum and directed along the direction of rotation of the drum with a step that ensures their mutual overlap, and the outer the edges of the ribs form a barrel-shaped surface in contact with the traction belt, and the side surfaces of the ribs, when the drum rotates in contact with the traction belt, form inclined channels through which the seeds that have fallen into the inside of the drum are carried outside the drum by gravitational forces, in addition, in the central part of the drum a platter is installed on which support the tops of the V-shaped ribs, and also on the sides of the drum side discs can be installed, on which the edges of the V-shaped ribs rest.

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