RU2465119C2 - Vibratory unit with toroidal working chamber - Google Patents

Abstract

FIELD: process engineering.

SUBSTANCE: invention relates to machine building and may be used in machining the parts in containers vibrated at low frequency. Proposed unit comprises toroidal working chamber resiliently mounted on bed and composed of sections. The latter are made up of strips bent along straight crease edges, arranged at an angle to strip edges and jointed together. Every section represents a circular sector composed of strip. Different-size quadrangles are formed on said strip. Said quadrangles have two parallel sides made up of crease edges arranged in parallel and equidistantly on the strip. The latter is bent along crease edges and coiled up to make curvilinear seats there inside. Sections are jointed together by free sides of said quadrangles to make, on working chamber inner and outer surfaces, unidirectional helical lines and surfaces with seats of different curvilinear shape and sizes.

EFFECT: ease of manufacture, expanded performances.

9 dwg

Description

The invention relates to the processing of parts in containers that perform low-frequency vibrations, and can find application in various fields of engineering for grinding, polishing and hardening of the surface layer of parts.

A device for vibration processing (a.s. No. 1042965, class B24B 31/06, 1983) is provided, comprising a toroidal chamber elastically mounted on the base with a vibrator and a cover made in the form of an annular disk and installed with a clearance of the working chamber cavity.

A disadvantage of the known device is the lack of processing intensity and limited technological capabilities due to insufficient mixing intensity.

Closest to the proposed invention is a vibration unit with a volumetric movement of the working chamber (RF patent No. 2288830, class B24B 31/073, 2006), containing a toroidal working chamber, elastically mounted on the base with a vibrator, made of sections mounted from strips bent into one side along straight lines placed at an angle to the edges of the strips, with alternating formation along the strip length of different-sized equilateral and isosceles triangles, while on both sides of the largest equilateral triangle there is a the wives with their bases are two identical isosceles triangles, on the sides of which are two identical equilateral triangles with two identical isosceles triangles located to them with their bases, on one of which is an equilateral triangle, and the sides of smaller equilateral triangles differ from the sides of large equilateral triangles by one and the same linear value, and the sections are connected to each other by the free sides of the mentioned triangles with images Niemi on the outer and inner surfaces of the toroidal working chamber of polygonal lines screw and helical surfaces.

A disadvantage of the known device is the complexity of manufacture and limited technological capabilities, including due to the inability to process parts of low rigidity.

The technical solution is to simplify manufacturing and expand technological capabilities.

The technical solution is achieved by the fact that in a vibration installation with a toroidal working chamber, comprising a toroidal working chamber, resiliently mounted on the base with a vibrator, made of sections mounted from strips that are bent along straight fold lines, placed at an angle to the edges of the strips and connected to each other , each of the sections is made in the form of a circular sector mounted from a strip on which quadrangles of different sizes are formed with two parallel sides in the form of fold lines located on Olos parallel to each other at equal distances, while the strip is bent along the fold lines and rolled into a ring with the formation of curved pockets inside it, and the sections are connected to each other by the free sides of the said quadrangles with the formation on the outer and inner surfaces of the toroidal working chamber directed in one side of helical lines and helical internal curved surfaces with pockets of various curved shapes and sizes.

According to the patent literature not found a technical solution similar to the claimed, which allows us to judge the inventive step of the proposed vibration system with a toroidal working chamber.

The novelty is due to the fact that the casing is made in the form of a torus with a curved helical surface along the inner perimeter in the form of pockets of a curved shape, which around the perimeter can be different not only in shape but also in size, which ensures the expansion of technological capabilities and simplification of manufacture.

The invention is illustrated by drawings, where figure 1 shows the proposed vibration installation, General view; figure 2 - toroidal working chamber, top view; figure 3 is a section aa in figure 2; figure 4 - ¼ part of the toroidal working chamber, top view; figure 5 is a section bB in figure 4; Fig.6 is a strip with marked straight bend lines and trim lines of the edges of the quadrangle; 7 is a strip after trimming the edges of the quadrangles; on Fig - strip after trimming the edges of the quadrangles, bent along the straight lines of the fold; Fig.9 is a perspective view of a strip folded into a ring (in the form of a circular sector section).

A vibrating installation with a toroidal working chamber (Fig. 1) consists of a bed 1, on which a toroidal working chamber 4 is resiliently fixed and equipped with a vibrator 3 using springs 2. Loading and unloading devices are not shown in the drawings.

The toroidal working chamber 4 (Fig. 2, Fig. 3) is made with a curved screw surface along the inner perimeter in the form of pockets of a curved shape and mounted from sections 5 (Fig. 4), interconnected by known methods, for example, welding, adhesive, etc. P. with the formation along the outer and inner perimeters of the working chamber of helical lines and helical surfaces of curved shape in the form of internal pockets of a semicircular shape 6, 7, 8, 9, 10, 11 (figure 5). One of the sections 5 in figure 4 is highlighted by solid thickened lines.

Each of the sections 5 is made in the form of a circular sector (Fig. 4) and is mounted from a strip 12 (Fig. 6), on which rectangles 13 and fold lines 14 are arranged, placed at equal distances from each other equal to the scan length of the perimeter of curved pockets, for example , for pockets 6, 7, 8, 9, 10, 11 at distances L and at an angle α to the edges of the strip 12. On the strip 12 are also marked the cutting lines 15 of the edges of the strip 12, shown in FIG. 6 with a dash-dot line with two points. After marking along the line of trimming of the edges 15, the sections of the strip 12 (in FIG. 6 these sections of the strip 12 are shaded) are cut off, and the strip 12 takes the form shown in FIG. 7, in which the fold lines of the strip 14 are different in length L ₁ , L ₂ , L ₃ , L ₄ , L ₅ , L ₆ with the formation at the same time of different sizes of quadrangles with two parallel sides - fold lines 14 parallel to each other. The strip 12 (Fig. 8) after trimming the edges of the rectangles 13 along the trimming line of the edges 15 is bent along straight lines placed at an angle α to the edges of the strip 12 to form curved surfaces 16 with edges 17 and 18 and then rolled into a ring 19 (Fig. 9 ) with a curved inner surface in the form of pockets of a curved shape. The edges 17 and 18 of the strip 12 after folding into a ring 19 are connected by known methods, for example by welding, soldering, etc., with the formation of section 5 in the form of a circular sector.

Thus, the working chamber (figure 2, figure 3), made in the form of a torus, is made around the perimeter in the form of a multi-helical surface with helical lines with a step that varies along the diameter of the case along the perimeter of the case and screw grooves inside the working chamber 4 in the form of pockets curved shape. Figure 4 shows that along the outer diameter D of the working chamber 4, the pitch of the helical lines S ₁ , and along the inner diameter d of the working chamber 4, the pitch of the helical lines S ₂ . Moreover, S _{1 is} greater than S ₂ .

The working chamber 4 (figure 2, figure 3) in the form of a torus with a curved helical surface along its inner and outer perimeter with the formation on its inner surfaces of pockets of a curved shape and unidirectional multi-helical lines with a step that varies in diameter of the case can be made different way.

Technical and economic advantages of execution arise due to the working chamber of the vibroinstallation in the form of a torus (circular ring), the surface of which is equipped with unidirectional helical lines and helical surfaces in the form of channels of a curvilinear shape, which provide a smooth change in the direction of flow of the processed parts and particles of the working medium and their movement from loading to unloading, expanding technological capabilities.

Claims (1)

Vibration system with a toroidal working chamber, comprising a toroidal working chamber, resiliently mounted on the base with a vibrator, made of sections mounted from strips that are bent along straight fold lines, placed at an angle to the edges of the strips, and connected to each other, characterized in that each of the sections is made in the form of a circular sector mounted from a strip on which quadrangles of different sizes are formed with two parallel sides in the form of fold lines located on the strip parallel to equal to each other at equal distances, while the strip is bent along the fold lines and rolled into a ring with the formation of pockets of a curvilinear shape inside it, and the sections are connected to each other by the free sides of the said quadrangles with the formation on the outer and inner surfaces of the toroidal working chamber directed to one side screw lines and screw internal curved surfaces with pockets of various curved shapes and sizes.

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