SU952560A1 - Shot-peening installation for working articles such as pipes - Google Patents

Description

The invention relates to the processing of parts such as pipes.

A known shot blasting machine for machining parts such as a pipe containing a column base, a movable yoke with openings for supplying the working medium to a rotary driven shotgun, installed with the possibility of reciprocating movement along the columns, and a system for collecting and supplying the working medium ij.

A disadvantage of the known shot-blasting installation is the impossibility of processing the outer surface of pipe-type parts.

The purpose of the invention is to increase the productivity by simultaneously processing the outer and inner surfaces of the parts.

The goal is achieved by the fact that the installation is equipped with supporting sleeves with a rotating drive and spring-loaded rollers mounted on the base, the supporting sleeves are mounted eccentrically relative to the axis of one of the gears to be rotatable, and the mobile yoke is provided with nozzles mounted coaxially. support sleeves. In this case, the drive rotation. bushings made in the form of mating, gears and is located on the base.

The rotational drive of the shot-blasting apparatus is made in the form of a hydraulic cylinder with a rod with a ball under the barrel.

FIG. 1 shows a shot blasting installation, general view; Fig.2 section aa in Fig.1.

to

Based on 1, two columns 2 are placed, bearing on themselves a fixed 3 and a movable 4 traverse 7, the latter is set in motion from the electric motor 5 through a pair of conical gears 6 and shaft 7, through worm gear pairs 8 and screws 9..

On base 1, gearbox 11 is placed on racks 10, driven by electric motor 12 of direct current and drive 13.

Details 14 are installed at one end in eccentrically arranged support sleeves 15, and the other end in hollow connections 16 placed with

25 by the same eccentricity in the mobile traverse.

Claims (2)

Through gears 17-20, on the shaft of which support sleeves 15 are mounted, the parts are rotated around the axis of the gears 20 and additionally rotate around their own axis by means of spring-loaded curved rollers 21. The parallel arrangement of the driven gears 19 and gears 20 does not allow install special balancing weights on the gears, as they are self-balancing. The vector of resulting forces from the unbalance arrangement of the parts 14 is directed towards the center of the installation, or from the center, which eliminates the extra vibration of the installation. For machining the outer surface of the parts 14, there is a shot beating wheel 22, rotated from the rotating gear 23 through a pair of interchangeable gears 24, a driven gear 25 and a splined shaft 26 connected to the drift wheel 22. The reciprocating movement of the shot bevel wheel 22 is carried out by means of a hydraulic cylinder 27 disposed in the movable yoke 4. The piston 28 with the rod 29 is connected by a ball cushion 30 to the shot wheel 22, which allows the latter to rotate. The working medium is supplied from the tank 31 by the hydraulic pump 32 through the pipeline 33 to the receiver 34, from where part of the working medium from version 35 enters the tank 36 of the blasting wheel and under the action of centrifugal forces is ejected through the windows 37. Another part of the working medium enters through holes 38 into the hollow coupling 16 and from there into the inner part of the rotating parts 14. The working medium on the inclined plane 39 is poured into the chute 40 located along the entire perimeter of the gearbox 11 at an angle to the horizon, from where it falls into the tank 31. bochey environment outside the installation. The installation works as follows. By turning on the electric motor 5 with water, the rotation of a pair of bevel gears b, shaft 7, which rotates the screw through the black pair 8, which facilitates the movement. The movable traverse is up, and this, in turn, makes it possible to install the parts, 14c supporting sleeves 15 By turning on the electric motor 5, the movable traverse is lowered down, the hollow branch pipes 1 of which are put on the upper end of the parts. The spring-loaded rubberized roller 21 contacts the outer surface of the part 14. By activating the direct current motor 12, the shaft of the central drive pin 17 and the gear itself rotate through the drive unit 13 and the gear itself rotates the supporting bushings 15 with parts 14. around its axis due to spring-loaded rubberized rollers 21. From gear 23, which is meshed by knowledgeable gear 17, rotation is transmitted to a pair of interchangeable gears 24 and driven gear 25, splined shaft 26 and a shot blaster th wheel 22 rigidly zannomu with him. The inclusion of a hydraulic pump 32 working environment, which is a dependent. Due to the nature of the treatment, hardened steel balls with spun oil (to perform surface hardening) or abrasive slurry, is fed through conduit 33 to receiver 34, from where, through holes 35, it enters the tank 36 of the blasting wheel and is thrown through / pieces 37 onto the outer surface of parts 14, the production is processing, and through holes 38 - into the internal cavity of the parts. As parts rotate, the working medium hits its internal walls, producing a treatment. The spent working medium exits through the holes in the sleeves 15 and slides into the chute 40 along the inclined plane 39, and from it into the tank 31. During processing, the shot blasting machine rotates from gear 25, on its axis a splined shaft 26 is placed, rigidly connected to the shot blasting machine the apparatus 22. The reciprocating movement of the shot-blasting apparatus is carried out using a piston 28 and a rod 29 placed in the hydraulic cylinder 27, which is controlled from a spool box (not shown). The best eccentricity size provided by interchangeable fixtures 15 and hollow couplings 16 must be equal to or greater than 210 mm in radius of the internal hole. With such an eccentricity, all the falling bodies of the working media strike the internal surface of the part, producing a treatment. Thus, due to the simultaneous processing of the external and internal surfaces of the parts, it provides an increase in the productivity of the installation. Claim 1. Shot blasting installation for processing parts such as pipes, containing a base with columns, installed with the possibility of reciprocating movement of the movable traverse with openings for supplying the working medium to the shot blasting machine, the rotation drive of the shot blasting machine mounted in a movable traverse, and a collection system and supplying the working environment, which is based on the fact that, in order to simultaneous machining of the outer and inner surfaces of the part, it is equipped with rotatably mounted supporting bushings 1 by the number of parts, eccentrically located axes of rotation, and spring-loaded rollers mounted on the base, and the mobile yoke is provided with branch pipes mounted coaxially with the supporting sleeves so that . 2. Installation pop. 1, characterized in that the drive of rotation of the sleeves is made in the form of conjugate gears and is located on the base. Sources of information taken into account in the examination 1. USSR author's certificate 299349, cl. B 24 C 5/06, 1970. 7 dff // 19 1 Ю // 18 17 6 2Т28, г j 3 /// 7 / / / / / / 12 4ff 2 32 31 Phag.1 ± J