UA68848A - Screen sieve - Google Patents

Abstract

The screen sieve contains elastic base with openings, reinforcing threads. The cross ribs are executed from below the elastic base, they are located between the openings, and the reinforcing threads are moulded in the cross ribs.

Description

Description of the invention

The invention relates to the technique of separation of loose materials and can be used in mining, 2 metallurgical and other industries.

In the current state of the art, there is a well-known analogue - a screen sieve from the book "Nadut'i V.P.

Zolotareva V.P. Polymer sieving surfaces of vibrating screens. - M., Nedra, 1993", p.119, fig. 11g. This sieve contains an elastic base with holes. These features of the analogue coincide with the essential features of the invention.

The disadvantage of this sieve is rapid wear. 70 This shortcoming is less evident in the prototype - screen sieve according to Ukrainian patent Мо37586 ВО7В1/00; VO781/08 dated 05.01.2000 This sieve accommodates an elastic base with holes, reinforcing the threads. These features of the prototype coincide with the essential features of the invention.

The disadvantage of the prototype is that after rubbing the reinforcing threads, which are formed in the elastic base, the sieve quickly fails. 19 The invention is based on the task of increasing the reliability of the sieve when using the invention.

The task is solved by the fact that in the screen sieve, which contains an elastic base with holes, reinforcing threads, in contrast to the prototype, transverse ribs are made from the bottom of the rubber base, located between the holes, and reinforcing threads are formed in the transverse ribs.

To increase the overall rigidity of the sieve and reduce wear even more, longitudinal ribs can be additionally made from the bottom of the elastic base, located between the holes that are docked to the transverse ribs, while additional reinforcing threads are formed in the longitudinal ribs, which are connected at the points of intersection of the ribs with reinforcing threads of transverse ribs.

To reduce the probability of detachment of the reinforcing threads at the edges of the sieve, the ends of the reinforcing threads can be wound into an elastic base.

The causal relationship between the set of features of the invention and the technical result that can be achieved is as follows.

In contrast to the prototype, the reinforcing threads, formed into ribs, are located at a greater distance from the wear surface and, together with the ribs, increase the stiffness of the sieve. All this increases the time of trouble-free work of the sieve and reliability. In addition, the fact that such a design allows, while maintaining the stiffness of the sieve, to choose a softer rubber for the sieve, which has greater wear resistance, contributes to the increase in reliability. "Her

The attached drawings show a version of the sieve when using all the claims. Fig. 1 shows a side view of the sieve; Fig. 2 - top view; Fig. 3 shows a section along A-A of Fig. 2, Fig. 4A shows a section along B-B of Fig. 2, and Fig. 5 shows a section along B-B of Fig. 2. with

The screen sieve consists of an elastic base 1 with holes 2. The elastic base has support protrusions З, with which 39 sieves are installed in the longitudinal supports 4 of the screen. From the bottom of the elastic base, transverse ribs 5 are made, which are located between the holes. Reinforcing threads 6 are formed into these ribs. In addition, longitudinal ribs 7 are made from the bottom of the elastic base between the holes, while additional reinforcing threads 8 are formed in them, which are connected to the reinforcing threads of the transverse ribs at the points of intersection of the ribs. This connection can be made with nodes "8, 9, crimping clamps, glue, or another way. The ends of 10 reinforcing threads at the ends of the ribs can be wound into the Z 70 elastic base 1. During the operation of the screen, the movement of the sieve is set from the longitudinal supports of the 4 screens through the support protrusions

From" 3. The sifted material falls on the elastic base 1, moves along it, and its fine fraction is sifted into the under-sieve space through the holes 2. At the same time, the ribs 5 and 7 together with the reinforcing threads 6 and 8 ensure the rigidity of the sieve when using rubber with a low and medium hardness, which is selected according to the condition of minimal wear. At the same time, nodes 9, with which the reinforcing threads b and 8 are tied, as well as the ends 10 of the reinforcing threads, wound into the elastic base 1 b, contribute to an even greater increase in the stiffness of the sieve and create conditions in which it is impossible

Ge | detachment of reinforcing threads. At the same time, the reinforcing threads are placed in the ribs - at a greater distance from the wear surface, which ensures reliable operation of the sieve even with increased wear of the elastic base. drive 50 and 3 /

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Claims (2)

The formula for the invention of iz 50 1. Screen sieve containing an elastic base with holes, reinforcing threads, which is characterized by the fact that from the bottom of the elastic base transverse ribs are made, located between the holes, and the reinforcing threads are formed in the transverse ribs. 2. Screen sieve according to claim 1, which is distinguished by the fact that longitudinal ribs are additionally made from the bottom of the elastic base, located between the holes that are attached to the transverse ribs, while additional reinforcing threads are formed in the longitudinal ribs p, which are connected at the points of intersection of the ribs with reinforcing threads of transverse ribs. Z. Screen sieve according to claim 1, 2, which differs in that the ends of the reinforcing threads are wound into an elastic base. 60 Official Bulletin "Industrial Property". Book 1 "Inventions, useful models, topographies of integrated microcircuits", 2004, M 8, 15.08.2004. State Department of Intellectual Property of the Ministry of Education and Science of Ukraine. b5