DE6912605U - PERFORATED SCREEN BASE MADE OF RUBBER-ELASTIC SOLID MATERIAL - Google Patents

Description

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Professor Dr.-Ing.
Robert M e 1 last

Gustav H β 1 ^{last St 476a} * "* ·» / *

483 Gütersloh
Carl-Bertelsmann-Str. 4

company

Steinhaus GmbH.

433 Mülheim / Ruhr Platanenallee 46

Perforated screen base made of rubber-elastic solid material

The new pattern increases the practical value of perforated sieve bases made of elastic solid material, which is used as a sieve field for weary goods serve. Perforated sieve trays of this type are known in the area of the sieve openings between the reinforcement vibrate elastically under bias and metal-elastic for the rest.

The utility model solves the task of these natural vibrations Selectable type to improve in the area of the sieve holes with a sharper spatial separation of the rubber-elastic and the metal-elastic oscillation areas of the sieve fields "* ·.

It was found that a reinforcement made of inelastic fabric strips with metal-elastic properties that cross within the perforated screen base and are rubber-elastic

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Delimit vibrating sieve folds, a particularly advantageous one Form a frictional connection for the transformation of the metal-elastic vibrations into rubber-elastic ones.

Saher has the new perforated screen bottom made of rubber-elastic solid material the special feature that the reinforcement consists of inelastic fabric strips with metal-like properties, which cross within a sieve field delimiting the sieve openings.

This reinforcement is advantageous in a form-fitting and force-fitting manner Shape of fabric strips embedded in webs of the elastic solid material, these fabric strips between Tension the unreinforced webs of the elastic solid material of the perforated screen bottom lying on them like a drumhead.

The new pattern is shown in the drawing in preferred examples:

FIG. 1 is a plan view of a perforated screen base as a flat screen field made of elastic solid material with embedded reinforcement made of fabric strips;

FIG. 2 is a plan view of a new Looh sieve base as a tension sieve field;

FIG. 3 is an enlarged illustration of the detail which is highlighted in FIG. 1 by the circle A.

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FIG. 4 is a section according to I, I of FIG. 3; FIG. 5 is a section according to II, II of FIG

FIG. 6 is an enlargement of the detail highlighted by the circle B in FIG

FIG. 7 is a section according to III, III of FIG. 6

One can see in Figure 1 a ready-to-assemble perforated screen base elastic solid material as a flat screen field 1 with the width 2, the length 3, the webs formed from elastic solid material 4 and unperforated edges 5 as well as the embedded reinforcement 6 and the sieve openings 7.

FIG. 2 shows a ready-to-assemble perforated screen base made of elastic solid material as a tensioning screen field θ with the length of the tensioning edge 9, the tension measure 10, which consists of elastic solid material Bars 4 and unperforated edges 5 as well as the reinforcement 6 and the sieve openings 7

The sieve openings 7 of Figures 1 and 2 can be any Have size and shape as well as arranged in rows or staggered ao be that between the reinforcement 6 are one or more screen openings.

FIG. 3 shows, as detail A of FIG. 1, the webs 4 made of elastic solid material, the reinforcement 6 as a fabric

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strip with the width 11 from any wires and / or Recognize strands 12 with any weave, any mesh or mesh size, as well as the sieve openings 7.

FIG. 4 as a section according to I - I of FIG. 3 shows the webs 4 made of elastic solid material, of which the sieve bottom webs have the width 15 and the webs with the reinforcement 6 the width 14 * The reinforcement 6 is formed by fabric strips with the width 11 Wires and / or strands 12. The sieve bottom webs with the width 15 have, for example, the sieve bottom thickness 12 and the webs with the reinforcement 6 and the width 14 have the thickness 13. So that the reinforcement 6 is only visible and worn at very advanced wear of the sieve bottom , it is embedded, for example, from the top side 16 of the sieve bottom by the sieve bottom thickness 12. In order to have a low volume resistance in the direction 17, the Sieböff openings 7 widen conically in the direction 17.

FIG. 5 shows, as a section according to II-II of FIG. 2, the elastic solid material 10 provided with the sieve openings 7, which merges at the point 19 into the elastic solid material 20, which is bordered with the reinforcement 6 and the stiffeners 21 the spam ante 22 forms, via which the introduction of the clamping force 23 into the clamping screen field 8 is possible. The position 24 of the not yet bent clamping edge end of the sieve field is shown in dashed lines. On the screen product side 25 of the tensioning screen field shown for example in Fig. 5 for a longitudinal tensioner, the sieve

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Openings 7 be smaller so that the sieve openings widen conically in the direction 17. The dioke 26 of the sieve bottom part with the sieve openings can be reduced or enlarged depending on the requirements on the dioke 27 of the clamping edges. The Shore hardness of the elastic solid material 18 provided with the sieve openings can be selected differently than that of the elastic solid material 20 of the tensioning edge 22. So that the stiffener 21, for example made of a perforated sheet, firmly surrounds the bent tensioning edge part, before turning, for example through Rivets 28, compressive forces are generated.

Figure 6 is the detail B of Figure 2 and shows the sieve openings 7, which end at the point 19 at the transition to the elastic solid material. The reinforcement 6 as a fabric strip with the width 11 runs from the elastic solid material 18 with the sieve openings in the elastic solid material 20 and is embedded here in a form and force footing, so that the clamping force 23 by means of the stiffeners 21 made of sheet metal, perforated sheet, wire, fabric or can be transferred properly in any other design.

Figure 7 as a section according to III-III of Figure 6 shows the web 4 consisting of elastic solid material with the form-fitting and force-fitting embedded reinforcement 6 made of fabric strips with the width 11, which are made of any wires and / or strands 12 with any weave and any mesh or mesh sizes are made. The wires or strands can be made of metallic

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Materials (steels, non-ferrous metals) and / or non-metallic Materials (textile fiber material). One recognises Furthermore, from Figure 7, the thickness 26 of the sieve bottom part with the sieve openings 7 and the distance 29 and the distance 30, the both the position of the reinforcement 6 in the elastic solid material 4 determine. The distances 29 and 30 can be varied as required depending on the requirements. It is also possible to change the location of the fabric strip with the width 11 as it is for the special case is favorable.

This new perforated screen tray that is suitable for all applications Can be produced ready for installation offers significant advantages over known designs. In the case of difficult material to be screened Border grain jammed less often. The sieve openings are not so easily smeared by fine grain. The rubber elastics Areas that can oscillate clean themselves to a large extent. The conically widened sieve openings contribute to this. the eardrum-like tension does not favor the occurrence of jumping grain, rather the jumping of the grains through the different vibration characteristics are significantly dampened.

The Manufacture new sieve bottom in the workshop. The well-known Shrinkage of rubber after vulcanization and molding can manifest itself in the large non-reinforced areas of the new Have a free effect on perforated sieve bottoms. On the other hand, there are the reinforced walkways

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cannot shrink, the rubber-elastic oscillating small individual fields within the individual sieve fields are stretched like a drumhead * it is avoided that they after
are overused for longer periods of operation and then sag limply.

Claims (1)

·· C rr «rl * * t t · ΓΊ I I III · ··· »" I "* Professor Dr.-Ing. Robert M β 1 d a u Dipl.-Ing. Gfuetav I β 1 last St 476a Prof .M / d Guterβloh I Carl-Bertelsmann-S tr. 4 Protection claims \ ^ s 1.) Perforated sieve base made of rubber-elastic solid material as a sieve field for abrasive goods, which is rubber-elastic in the area of the sieve openings between the reinforcement under prestress and also vibrates metal-elastic, characterized in that the reinforcement consists of inelastic fabric strips (3) with metal-like properties that are delimited within one of the sieve openings (7) Cross the sieve field. 2.) perforated screen base according to claim 1, characterized by positive and non-positive as reinforcement (6) in webs (9) of the elastic solid material embedded fabric strips (3), which the unreinforced webs (4) between them Tension the elastic solid material of the perforated screen base (1) like a drumhead. -2- JR. ——— ■ "^ ΖΣΙ ^ ΣΙΖ '.'..-.. • I ft r trr for r if »t · · tr ·« ι T)> 1111 9 »I. 11) ') Il It »*» » 3.) Eochsieblcden according to claims 1 and 2, thereby cool
l> indicates that the thickness (13) of the webs (4) with the loading reinforcement (6) is greater than the thickness (26) of the sieve bottom part with the sieve openings (7). 4 ·) Perforated screen base according to claims 1-3 »characterized in that premature wear of the reinforcement (6) is prevented by appropriate distances (29 and 30) of the reinforcement (6). 5.) Loohsiebboden according to claims 1-4, as a tensioning screen field, characterized in that the reinforcement (6) made of fabric strips also in the elastic solid material (20) of the tensioning edges (22) is positively and non-positively embedded and the tensioning edges (22) are formed by elastic solid material without sieve openings with the reinforcement (6) and additional stiffeners (21). 6.) Loohsiebboden according to claims 1-5, daduroh characterized, dab in the clamping edges (22) stiffening material is incorporated, which can protrude into the actual sieve bottom (18) with the sieve openings (7). 7.) perforated screen base according to claims 1-6, characterized in that that the thickness of the sieve bottom part (18) with the sieve openings (7) is equal to the thickness of the clamping edges (27) underneath idet. -3- I ff ff f · «ti I «Iflll ti Il Il If / IiI -3- 8.) perforated sieve base according to claims 1-7, characterized in that that between the reinforcement (6) the sieve openings (7) have different shapes and sizes and are e.g. Widen the passage direction conically. 9) Perforated screen base according to claims 1-8, characterized in that that the Shore hardness of the elastic solid material of the sieve bottom part (18) with the sieve openings (7) differs from that of the clamping edge part (22) is different. 10.) perforated screen base according to claims 1-9, characterized in that that the reinforcement (6) consists of several superimposed strips of fabric that are within a web (4) are embedded in any position.