SU1645119A1 - Shot blasting chamber of intermittent action - Google Patents

Description

 The invention relates to a device for you to abrasively clean the surface of parts, namely the field of mechanical engineering, and can be used to clean castings from Naga-1 pa.

The purpose of the invention is to increase productivity

FIG. 1 shows a shot blaster for a batch chamber, general view; Fig.2 is a section A-A on ig.1; on fig.Z section bb on ig.1; figure 4 - node 1fig1,

Drobemet camera periodical

The operation consists of the chamber walls 1, the bottom 2, the guides 3 along which the trolley 4 can move, on which the multidisc shot blasting apparatus 5 with a vertical axis of rotation is mounted. Above the level of the shot-machine 5, brackets 6 are mounted on which conical rollers 7 are mounted, on which a roof 8 is rotatably mounted, to which a gear ring 9 is attached, which is engaged with gear 10, which is rotatable from drive 11. Above the roof 8 on the wall 1 is fixed a fixed roof 12, on which gear rails 13 are rigidly fixed, in engagement with which are gears 14 fixed on suspensions 15 "The rim 16 is rigidly fixed on the roof 8. On a fixed roof 12 captive bunker 17. To serve the shot, a bunker 17 is served by an elevator 18, an annular sewn apron 19 is attached to the roof 8. A bunker for used waste and cleaning products 20 is attached to the bottom 2. Under the bunker 20 there is a belt conveyor 21, and a non-magnetic conveyor is located below it. waste 22. Next to the belt conveyor 21, there is a flat sieve with two blades - perforated 23 and solid 24. A suspended self-unloading separator 25 is installed above the belt conveyor 21 and perforated web 23 th e conveyor 26 connected with the elevator 18 under the perforated sieve olotnom mounted conveyor system 27 for large ferromagnetic wastes.

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The chamber is equipped with doors for loading 28 and doors 29 for replacing the shot blasting unit 5 with a spare 30.

The blasting chamber of the periodic operation works as follows.

The castings 31 are hung on the hooks with the suspension 15 in the open door 28, the cover 8 is turned by means of the actuator 11, for example, at an angle of 45 ° and the hooks are hung on the hangers again. After all the hooks are filled with castings, the doors 28 and 29 are closed and the drive 11 is turned on, the drive of the shot-blasting apparatus 5 and drives of the shot-turning mechanisms (not shown) —elevator 18, belt conveyors 21, 22, 26, 27 — of the suspended self-unloading iron separator tel 25, flat sieve.

A fraction of the blades of the horizontal disks of the shot-blasting apparatus 5 is ejected onto the castings 31 by several circular horizontal blades. The roof 8 is rotated on the rollers 7 by means of the actuator 11, and the gears 14 meshed with the fixed gear rails 13 rotate and rotate the castings 31 .

Due to the fact that the pendants are arranged in a checkerboard pattern, the castings protect the walls of the chamber 1 from the impact of the shot. The annular apron 19 protects the walls 1 of the chamber and the rollers 7 from falling into shot. Spent fraction and purification products are poured into the hopper 20 through the holes in the bottom 2, the conveyor belt 21 is fed with a suspension self-unloading separator 25, the non-magnetic fraction is fed with a belt conveyor 22 into the waste hopper, and the ferromagnetic fraction is attracted to the suspension poles self-expanding waste container and the ferromagnetic fraction 25 is pulled into the waste hopper by a self-discharging iron separator 25 and is discharged onto a perforated flat sieve web 23. (A valid fraction spills over a perforated sieve web 23 onto a continuous web 24, is poured onto the len-g precision conveyor 26, which ory moves it in the hopper of the elevator 18, the last overload it into the hopper 17 where gravity fraction enters the funnel 16 and the shot-blasting unit 5.

After a certain experimental time, the drives of all mechanisms are turned off, the door 28 is opened, and

peeled castings are removed from the suspension hooks.

The use of multidisc shot-blasting apparatuses with a vertical axis of rotation allows to obtain a powerful fraction of the fraction (more than 1000 kg / min), which allows simultaneously processing several rows of castings.

Claims (2)

1. A periodical blasting chamber containing a shot-blasting apparatus mounted on the bottom of the chamber with a vertical axis of rotation, suspensions for accommodating workpieces mounted rotatably on the rotary roof of the chamber, and in order to improve performance , 1645119 0 0 the suspensions are arranged concentrically around the base of the boedettor in at least two rows, in a checkerboard pattern, with the shot blasting apparatus being made multi-disk. 2. Chamber pop. 1, characterized in that guides are made on the bottom of the chamber, and the shot-jet apparatus is installed on the trolley inserted into the chamber and placed on the guides. 3 Chamber 1 and 2, characterized in that the shot circulation system is designed as a suspended self-unloading electromagnetic iron separator located above the conveyor belt for waste shot and a flat screen installed parallel to the belt conveyor located under the hopper for cleaning products. Ft.2 6-6 18