SU1319926A1 - Arrangement for securing sieve - Google Patents

Abstract

The invention can be applied in screens and other screening mechanisms in the mining and other industrial sectors. The purpose of the invention is to increase the reliability of operation and service life of the sieve (C) 5. The device includes a device for tensioning and fixing C 5 installed on the box 1 of the screen and cross-links-beams 8. They have longitudinal supports in the form of lower 6 and. the top 10 double-shouldered self-aligning levers (P). Moreover, P 6 is installed by means of hinges 7 on a cross-connection beam 8, and R 10 is installed by hinges 9 on each shoulder of P 6, and shock absorbing elements (AE) 11 are located at the ends of the shoulders of P 10. This C 5 touches one of the arms P 10, presses and deforms AE 11. Due to the pressure force and the presence of a shoulder in P 10, a moment of force is created relative to the hinge 9, and which rotates P 10 until the reaction from the elastic compression of AE II to C 5 will not be. Because C 5 must be arcuate, and C 5 pressure forces on AE 11 of one of P 10 create a moment of force relative to hinge 7 due to the presence of a shoulder in P 6 the latter will rotate until the reactions from elastic compression of AE 11 of another P 10 on C 5 will not be equal. As a result, efforts to press the screening surface to all AE 11 will be the same, 1 sludge. I (L O o o INS O5 6 to If

Description

eleven

The invention relates to devices for the separation of bulk materials and can be used in screens and other screening mechanisms in mining, chemical and other industries.

The aim of the invention is to improve the reliability of operation and the service life of the sieve.

The drawing shows schematically a device for fastening a sieve.

On the box 1 of the screen, the clamps 2 are fitted with tension bolts 3 and. nuts 4, which serve for tensioning the sieve 5. The device for fastening the sieve 5 contains lower self-aligning two shoulders Rachagi 6, fixed with the help of hinges 7 on the cross-link of the rumble beam 8. On each shoulder of the levers 6 by means of hinges 9, upper self-supporting two-arm levers are installed. Each shoulder of the levers 10 is provided with a rubber damper 1 1.

The sieve attachment device works as follows.

The nut 4 is rotated relative to the tension bolt 3, the grip 2 is moved, which pulls the sieve 5 tension. At that, the sieve 5 touches one of the shoulders of the double-arm lever 10, presses and deforms the shock absorber 11. Due to the pressure force and the presence of the shoulder in the lever 10, moment of force relative to the hinge 9, which turns the crustache 10 until the reactions from the elastic compression of the shock absorbers 11 to the sieve 5 become equal. Since the sieve 5 must be arcuate, and the pressure forces of the sieve 5 on the shock absorbers 11 of one of the levers 10 create a moment of force relative to the hinge 7 due to the presence of a shoulder in the lever 6, the latter will

Editor A.Lezhnina

Compiled by S. Shestakova Tehred V. Kadar

Order 2549/7 Circulation 538. Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, Projecto st., 4

rotate until the reactions from the elastic compression of the shock absorbers 1 of the other lever 10 to the sieve 5 become equal. As a result, the efforts of pressing the screening surface to all of the shock absorbers 11 will be one.

During the operation of the screen, the elongation of individual sections of the sieve 5 is compensated by the rubber shock absorbers 11, which are precompressed by the tension of the sieve 5, which ensures the constant tension of the screening surface and significantly reduces the time required to sieve the sieve 5. the sieve 5 sections with the same frequency equal to the forced one; therefore, the relative bends of the neighboring sieve 5 sections along the alternating cycle are absent, which allows significant o increase the service life of the screening surface.

Claims (1)

Invention Formula thirty A device for fastening a sieve, including cross-beams, on which are placed longitudinal supports with shock-absorbing elements, installed with the possibility of interaction with the sieve, a device for tensioning and fixing the sieve, which is 35 in order to increase reliability work and service life of the sieve, longitudinal supports are made in the form of lower and upper two shoulders self-adjusting levers, The lower 40 of which are mounted by means of a hinge on the transverse coupling of the beam, and the upper ones on each shoulder of the lower arm, while the damping elements are located at the ends of the upper arms. Proofreader G. Reshetnik