RU2568969C2 - Trolley-ladle elevator - Google Patents

Abstract

FIELD: machine building.

SUBSTANCE: elevator contains traction element in form of the connected trolleys with reactive strap, moved by means of the electromagnetic friction drive, and actuators in form of the ladles.

EFFECT: simplified design of the elevator.

2 cl, 3 dwg

Description

The invention relates to elevators transporting goods along vertical and steep slopes.

Currently, in many sectors of the economy elevators are used to transport bulk goods - grain, sand, earth, coal, cement, etc.

For all types of elevators, the common feature is the presence of a traction element that carries working bodies (buckets), a drive element located in the elevator head, and a tension element located in the elevator shoe of the device / 1 /.

It is known that the traction elements of the elevator are a rubber-fabric conveyor belt that allows a speed of movement up to 3.5 m / s, and a round link or plate chain that allows a speed of movement not exceeding 1.25 m / s / 2 /.

The elevator drive is gearbox, providing the movement of the traction element through the drum and sprockets. The initial tension is created by the tension drum and sprockets located in the shoe of the elevator. Bulk cargo is transported by various types of buckets.

Closest to the claimed invention in technical essence and the achieved result is the elevator described in / 3 / and patent / 4 /. They are taken as a prototype.

The main disadvantages in the design of these elevators are:

- complicated design due to the presence of a drum or star drive and the need for a tension device;

- complication of the drive and its start-up with high traction efforts;

- the unsuitability of the rubber fabric load-bearing element when operating in the low temperature range, flammability at high temperatures;

- increased elongation of the tape (up to 40%) / 3 /, requiring constant adjustments;

- low strength fastening of load-bearing elements to the tape;

- increased noise during operation when using chain traction elements;

- low lifting speeds with chain traction elements, and therefore low productivity;

- increased chain wear.

The most common failures in the work of elevators are failure of the traction element for various reasons (breakage, breakage, jamming, wear, etc.), which affects the reliability of the device.

The technical result of the claimed invention of transportation is to simplify the design of the elevator, which is achieved by replacing the traditional traction element and the use of an electromagnetic friction drive / 5, 6 /.

Unlike the prototype, the claimed device lacks drive and tension drums (sprockets), and the traction element with working bodies is made in the form of interconnected bogies, with reactive strips instead of rubber-fabric tape or round link and plate / roller chains. Cargo buckets are rigidly attached to this strip. The movement of trolleys with buckets along a rigidly guiding overpass is carried out using an electromagnetic friction drive.

The present invention is illustrated in the circuit diagram (figure 1), which shows the buckets (4), mounted on carts with a reaction band (6). The carts are movably interconnected, and support rollers mounted on them are mounted on closed, rigidly fixed guides (3). Ladles with a reactive strip are driven by an electromagnetic friction drive (5), which is connected to an electric motor (1) through a gearbox (2).

In Fig.2 presents a diagram of the supporting-running part of the invention, and in Fig.3 - a trolley with a reaction band and supporting-running wheels (7) with attachment points for buckets (9) and the connections of the trolleys to each other (8).

The principle of operation of the installation is that during the movement of the traction element, the buckets, rigidly fixed on carts with a reaction strip, scoop up the load or are loaded by falling asleep, transport it along the guides up, where, under the influence of gravity and inertia, the load falls out of the buckets and enters the unloading device . Ladles are lifted by an electromagnetic friction drive mounted on the track.

In the shoe (lower part of the elevator) according to the proposed scheme, there is no tension device and drum, and in the head (upper part) there is no drive drum (sprockets).

Thus, using interconnected trolleys with a reaction strip as a traction element instead of a conveyor belt or traction chains, as well as an electromagnetic friction drive installed on a vertical section of the track, instead of drive and tensioning devices, the elevator design is simplified, its energy intensity and metal consumption are reduced , as well as increased reliability.

Information sources

1. Balashov V.P. Hoisting transporting machines at factories of building materials. M., Mechanical Engineering, 1987, p. 280-287.

2. Alexandrov M.P. Hoisting machines. M., "Higher School", 1985, S. 455-461.

3. Romakin N.E. Continuous transport machines. M., Academy, 2008, p. 285-291.

4. CJSC Engineering Company Technex, patent B65G 17/12 and B65G 17/30.

5. Guskov A.N. and others. Copyright certificate No. 1538421. Conveyor drive. 1989.

6. Vybornov N. S., Guskov A. N. Copyright certificate No. 1238343. Conveyor drive. 1986.

Claims (2)

1. The elevator is a bucket and bucket, including a traction element, working bodies made in the form of buckets, an overpass, characterized in that the traction element with working bodies is made in the form of trolleys interconnected. 2. The bucket and bucket elevator according to claim 1, characterized in that an electromagnetic friction drive mounted on the track is introduced into it.

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