SU1253672A1 - Screen - Google Patents

Description

f

This invention relates to equipment used to size grains.

The purpose of the invention is to increase the reliability of the screen by simplifying the design of the tensioning screen mechanism.

Fig. 1 shows the screen, the general ID in Fig. 2 is the tension mechanism, and in Fig. 3, view A in Fig. 2

The screen contains a duct 1 with peeking ties 2, a sieve 3, a vibration exciter 4 oscillations and a tensioning mechanism 5 sieves made in the form of a clamp 6 with an emphasis 7, and a pull 8 connected with a clamp. T ha 8 is placed in pipe 9, one end of which is fixed on the outside of duct 1. T ha 8 has a thread and has a nut 10 on it with a spherical collar t1 and a multi-faceted, for example hexagonal, body t2, and the end face 13 of the spherical collar 11 is spherical on the side opposite to the hexagon body 12, and during assembly, it is in contact with the free end of the pipe 9. The opposite end 14 of the spherical collar 11 is made flat.

The pipe 9 is the forward stroke limiter of the nut 10. A fork bracket 15 is used to limit the reverse of the nut to, mounted on the outer side of the box 1 and covering the nut from the hexagonal body 12 On the nut 10, an additional cylindrical collar is made in the area of the fork 15. 16. The bracket 15 is bent from a flat surface 14 along an arc, the center of which is separated from the axis, ti not more than 1/5 of the diameter of the ty. A larger deviation of the center of the bending arc can cause skewing and seizure of the tension mechanism. In order to prevent the nut B 8 of the clamp 8 from being screwed onto the last lock nut 17. The stop 7 of the clamp b enters the loop 18 attached to the inner side of the box 1, the free end of the pipe 9 may have

12

to

20

25

253672

spherical surface under the collar 11 nuts 10.

The coupling unit 8 with the clamp 6 is made on the form of the crossbar 19, fixed on the end of the pull rod B facing the clamp. The crossbar 19 is covered by two brackets 20 attached to the clamp 6. Ta 8 is placed between these brackets. A certain gap between the clamp 6 and the crossbar 19 allows the joint to be made detachable, although it may be permanent.

The sieve 3 is fixed between the plank 5 and 21 of the channel 22 with bolts 23 and nuts 24 on both sides and placed loosely on the bar 25 attached to the inside of the box 1. Ta with clamp and nuts can be used as a tension mechanism any rumble provided that it is supplied with a pipe and a bracket.

The roar works as follows.

On both sides of box 1, tensioning mechanisms 5 are installed. In the initial position, the clamp 6 is retracted to the upper position. In this case, the ha 8 is pushed inside the screen and supports the clamp 6 from below. From above, the clamp 6 is held by the loop 18 by the stop 7, After the sieve 3 is installed, the nut 10 is rotated, the nut 10 rests against the tube 9, moves away from the box, the crossbar 19 abuts the brackets 20 and turns the clamp 6 relative to the loop 18. The lower end of the clamp 6 rests on bar 21 and on 40 tons sieve 3.

To remove the sieve (for example, when it is replaced), release the lock nut 17 and rotate the nut 10 in the opposite direction. The nut rests on the 45 bracket 15, the ton of ha 8 moves inside the screen, rests against the crossbar 19 on the clamp 6 and raises its lower end, freeing the sieve. After lifting the lower part of the clamp 6 to the desired height, the sieve can be changed. The clamp 6 remains in the raised position and does not interfere with the work.

thirty

50

20

(rig 2

fug. 3

Editor M. Kelemesh Order A662 / 12

Compiled by E. Papkova

Tehred L. Serdyukova Proofreader S. Shekmar

Circulation 565 Subscription

VNIIPI USSR State Committee

on affairs of inventions and openings 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production Printing Plant Uzhgorod, st. Project, 4

Claims (2)

1. SCREENING, including a box with transverse connections, sieves, vibration exciter and strainer, made in the form of a clamp attached to the box at one end of the inclined pipe, a clamp with a stop connected to the clamp clamp, placed in the pipe and having a nut with a polyhedral body and spherical a collar, a node connecting the thrust with a clamp and a backstop nut, characterized in that, in order to increase the reliability of the screen by simplifying the design of the strainer, the nut is made with a cylindrical collar, placed m between the spherical collar and the multifaceted body, the end of the spherical collar of the nut on the side of the cylindrical collar made flat and the opposite of the spherical, the backstop of the nut is made in the form of a forked bracket fixed on the box, bent from the flat end of the spherical collar with the possibility of covering the cylindrical collar of the nut, the nut is installed with the possibility of contact of the spherical end of the shoulder with the free end of the pipe. 2. The screen according to claim 1, characterized in that the node connecting the rod with the clamp is made in the form of a crossbar mounted on the end of the rod facing the clip, and two brackets attached to the clip and installed with the possibility of covering the crossbar on both sides of the rod. S and „, 1253672 rig. 1 f