RU2511208C1 - Vibratory concrete mixer - Google Patents

Abstract

FIELD: process engineering.SUBSTANCE: invention relates to production of mortars. Housing features helical shape with polygonal helical surface along its inner and outer edges and is composed of sections made up of two subsections. The latter are made up of bands flexed in one side along straight creases inclined to band edges and coiled to form, over band length, the different-side equilateral, isosceles and scalene triangles. Sides of triangle differ by one linear magnitude multiple of delta. Two equal scalene triangle larger sides smaller than the side of large equilateral triangle by one linear magnitude delta multiple of integer are located on both sides of the largest equilateral triangle. Smaller equilateral triangle is attached to mid side of the latter on one side of the band. All sides of said smaller triangle are smaller than said largest equilateral triangle by one linear magnitude delta multiple of two. Isosceles triangle base is attached to second side of smaller equilateral triangle, isosceles triangle lateral sides are smaller than its base by linear magnitude delta, hence, smaller than the side of the largest equilateral triangle by linear magnitude multiple of three deltas. Isosceles triangle is attached to the side of the latter, its base being smaller than its side by magnitude delta, hence, smaller than the side of largest equilateral triangle by four deltas. Lateral side of isosceles triangle with base smaller than is side by magnitude delta, hence, smaller than the side of largest equilateral triangle by three deltas, is attached to second scalene triangle mid side on band opposite side. Isosceles triangle is attached to the side of the latter, its base being smaller than its side by magnitude delta, hence, smaller than the side of largest equilateral triangle by four deltas. After coiling the band, band edges of lines magnitude smaller by four deltas than the side of largest equilateral triangle are interconnected to make subsections. Said subsections have square-like opening on their one side, opening side being smaller than that of the largest equilateral triangle by three deltas. On opposite side, they have opening shaped to isosceles trapezium with larger base equal to side of the largest equilateral triangle and smaller base smaller than larger base by three deltas. Trapezium sides are smaller than larger base by two deltas. Aforesaid subsections are connected by trapezium-shape openings to make square-like sections with inlets and outlets, square sides being equal. Said openings are arranged at an angle, its magnitude defining the working chamber helical shape. Said sections are connected with alternate turn relative to each other. Every next section is turned through 90 degrees relative to each other clockwise. Then, every next section is jointed with turn in reverse direction, also, through 90 degrees.EFFECT: expanded operating performances, decreased overall dimensions.15 dwg

Description

The invention relates to devices for the preparation of mortars and concrete mixtures.

Known concrete mixer (AS No. 11999622, class B28C 5/14, 1982) containing a housing with loading and unloading openings and with a working mixing body, longitudinally located in it and equipped with a vibratory tray under the unloading hole.

A disadvantage of the known device is the insufficient intensity of the interaction of the components of the solutions and concrete mixtures, limited technological capabilities.

Closest to the proposed invention is a vibratory concrete mixer (the decision to grant a patent for an invention according to application No. 2009111958/03 (016241) dated 03/01/2010) comprising a housing which is resiliently mounted on the base and is made in the form of interconnected elements with the formation of a multifaceted the outer and inner surfaces, mounted around the perimeter from alternately connected two rectangles and two parallelograms with the formation of the ends of the sections of the square, with the square of each subsequent section n rotated relative to the previous angle of 180 °.

A disadvantage of the known device is the limited technological capabilities, large dimensions in length.

The technical solution is the expansion of technological capabilities, reduction in size.

The technical solution is achieved by the fact that in a vibratory concrete mixer containing an elastically mounted base equipped with a drive housing, the housing is made in a spiral shape with a polyhedral helical surface along its inner and outer perimeter and made of sections mounted from two subsections made of strips bent into one side along straight fold lines, placed at an angle to the edges of the strips, and rolled into a ring with alternating formation along the length of the strip of different sizes of equilateral, isosceles and miscellaneous triangles, and the sides of the triangles differ by the same linear multiple of an integer Δ, while on the two sides of the largest equilateral triangle, two identical miscellaneous triangles are placed with their largest sides, the sides of which are smaller than the sides of the large equilateral triangle by the same linear quantity Δ, a multiple of an integer, and to the middle side of one of which a smaller equilateral triangle is attached on one side of the strip, all the sides of which are smaller than the side of the largest equilateral triangle by the same linear quantity Δ, which is a multiple of two, with an isosceles triangle attached to its second side of the smaller equilateral triangle, whose sides are less than its base by a linear value Δ and, accordingly, less than the side of the largest equilateral a triangle by a linear multiple of three Δ, and to the side of which an isosceles triangle is attached, the base of which is smaller than its side Δ and, respectively, less than the side of the largest equilateral triangle by 4Δ, while on the opposite side of the strip, an isosceles triangle is attached to the middle side of the second equilateral triangle, the base of which is smaller than its side by Δ and correspondingly smaller than the side of the a large equilateral triangle by 3Δ, and to the base of which an isosceles triangle is attached with its lateral side, the base of which is Δ less than its lateral side by Δ and correspondingly smaller than the side of the largest equilateral triangle by 4Δ; after bending the strip along the fold lines into the ring, the ends of the strips whose linear value is 4Δ smaller than the sides of the largest equilateral triangle are connected with the formation of subsections in which on one side a hole is formed in the form of a square, the side of which is smaller than the side of the largest equilateral triangle of the strip by 3Δ, and on the other hand, a hole is formed in the form of an isosceles a trapezoid, the large base of which is equal to the side of the largest equilateral triangle, and the small base is smaller than the large base by 3Δ, and the sides are smaller than the large base by 2Δ, and the sub-sections are connected to each other by openings in the form of trapezoids with the formation of sections with input and output holes in the form of squares whose sides are equal to each other, and these holes are located at an angle, the value of which determines the spiral shape of the working chamber, while the sections are connected into the working chamber with turning relative to each other in turn, alternately rotate 90 ° each subsequent section relative to the previous one clockwise, and then the next section is connected with rotation in the opposite direction also 90 °.

According to the patent literature not found a technical solution similar to the claimed, which allows to judge the inventive step of the proposed vibratory concrete mixer.

The novelty is due to the fact that the case is made in a spiral shape and multi-start helical surfaces and multi-start helical lines are formed along its outer and inner perimeter, which provides not only the intensification of the interaction of mortar and concrete components, but also the expansion of technological capabilities.

The novelty of the proposal also lies in the fact that the cross-sectional area around the entire perimeter of the casing changes not only in shape, but also in area, which provides alternate compression and expansion of the mortar and concrete components in each casing cross section, which means an increase in productivity, efficiency of solution preparation and concrete, expansion of technological capabilities.

The novelty of the invention lies in the fact that the triangles of the strips from which the body subsections are mounted are not only inclined to each other, but also to the axis of symmetry of the body, therefore, the compression ratio of the mass components of mortars and concrete increases, the process of preparing mortars and concrete accelerates, and technological opportunities.

The novelty also lies in the fact that the casing is made of sections, the walls of which are not only inclined to each other, but also to the direction of the rotational movement of the particles of the mortar and concrete components moving under the influence of vibration in planes perpendicular to the passage section of the casing, which complicates the trajectory of their movement , increases the intensity of their interaction and expands technological capabilities.

The novelty lies in the fact that the manufacture of a spiral-shaped case with multifaceted elements of various shapes and various sizes along the perimeter, located along helical surfaces and spiral broken helical lines, provides an intensification of the preparation of mortars and concrete, increases the energy intensity and frequency of their interaction, ensuring a continuous flow of preparation mortars and concrete during their movement from loading to unloading.

The invention is illustrated by drawings, where figure 1 shows a vibrating concrete mixer, General view; figure 2 - case, top view; figure 3 is a section aa in figure 2; figure 4 is one of the sections from which the housing is mounted, top view; figure 5 is one of the sections from which the housing is mounted, view along arrow B in figure 4; figure 6 is one of the subsections of the sections of the housing, axonometric projection; in Fig.7 is a second subsection of a section of the housing, axonometric projection; on Fig - strip with marked straight lines; figure 9 - assembly diagram of the section from the subsections; figure 10 - section bB in figure 2; figure 11 is a section bb in figure 2; in Fig.12 is a section GG in Fig.2; in Fig.13 is a section DD in Fig.2; Fig.14 is a cross-section EE in Fig.2. Fig - flow chart of the continuous preparation of mortar or concrete, a visual image.

Vibratory concrete mixer (figure 1) consists of a frame 1, on which, using springs 2, the housing 4 is resiliently fixed and provided with a vibrator 3. Loading and unloading devices are not shown in figure 1.

The housing 4 (FIG. 2, FIG. 3) is made of a spiral shape with a polyhedral helical surface along its inner and outer perimeter and made of sections 5 (one of the sections in FIG. 2 is highlighted by solid thickened lines) interconnected by known methods, for example welding, sticky, etc. Each of the sections 5 is made in the form of a circular sector (Fig. 4, Fig. 5, Fig. 6, Fig. 7) of subsections 6 and 7. Subsections 6 and 7 are made of strips M (Fig. 8), bent to one side along straight lines A, B, C, D, D, E, Zh, placed at an angle to the lateral edges of strip M, with the formation of different-sized equilateral triangles 8 and 9, while the sides of triangle 8 are less than the sides of triangle 9 by 2Δ, isosceles triangles 10, 11, 12, 13 and two identical miscellaneous triangles 14 and 15. All sides of these triangles differ from each other by one at the same linear size of a multiple of integer Δ. At the same time, on the two sides of the largest equilateral triangle 9, two identical different-sided triangles 14 and 15 are placed with their largest sides (side G of triangle 14 and side D of triangle 15). The sides along which triangles 14 and 15 are connected to triangle 9 are shown in FIG. .8 double lines. The medium-sized sides of the different-sided triangles 14 and 15 (the side in the triangle 14 and the E side of the triangle 15) are less than the sides of the large equilateral triangle 9 by 2Δ. The smallest sides of the versatile triangles 14 and 15 are smaller than their average sides B and E by an amount (Δ) and equal to an amount (L). These sides (L) are shown in FIG. An equilateral triangle 8 is attached to the middle side B of an equilateral triangle 14, all sides of which are equal to the middle side B of triangle 14. To side B of triangle 8, an isosceles triangle 11 is attached with its base, the sides of which are smaller than its base by Δ and accordingly less than the side of the largest triangle 9 by 3Δ. An isosceles triangle 10, the base of which is smaller than its lateral side by Δ and correspondingly smaller than the sides of the largest equilateral triangle 9 by 4Δ, is attached to the side of triangle 11 by its lateral side A. On the opposite side of the strip M to the middle side E of the triangle 15, an isosceles triangle 12 is attached with its lateral side, the base of which is smaller than its lateral side by Δ and, accordingly, less than the side of triangle 9 by 3Δ. To side Ж - the base of triangle 12, an isosceles triangle 13 is attached with its lateral side, the base of which is smaller than its lateral side by Δ and, accordingly, less than the sides of the largest equilateral triangle 9 by 4Δ.

After bending the strip M along the lines A, B, C, D, D, E, Zh into a ring in one direction, the ends of the strip M along the lines K (shown in Figures 6 and 7 by a triple line) are connected, for example, by welding to form subsections 6 and 7 (FIG. 6 and FIG. 7), in which a hole is formed in the form of a square with a side equal to L, the length of which is less than the side of the largest equilateral triangle 9 of the strip M by 3Δ, and on the other hand, a hole is formed in in the form of an isosceles trapezoid, the large base of which is equal to the side of the largest equilateral triangular 9, the small base is smaller than the large base of the trapezoid by 3Δ, and the sides are smaller than the large base by 2Δ.

Subsections 6 and 7 are connected with trapezoidal openings (Fig. 9) to form section 5, for example, by welding. Thus, section 5 (Fig. 4, Fig. 5) is provided with an inlet square hole P and an outlet square hole C, the sides of the square inlet and outlet openings P and C of section 5 being equal to each other. In this case, the square holes P and C of section 5 are located to each other at an angle α, the value of which ensures the spiral shape of the housing 4.

When the sections 5 are mounted in the housing 4, they are connected by square holes, while in turn they are rotated 90 ° each subsequent section relative to the previous one clockwise, and then the next section is also connected with rotation in the opposite direction by 90 °.

On the outer and inner surfaces of the spiral casing 4, mutually directed broken helical lines are formed, for example, as shown in FIG. 2 with a thickened line, one of eight broken helical lines: 16-17-18-19-20-21-22-23-23-25-25 -26-27-28-29-30-31-32-33-34-35-36-37-38-39-40-41-42-43, etc. In Fig.2, the invisible sections of the broken helix are shown by a double dashed line, and their vertices are taken in parentheses.

As a result, helical surfaces with different cross-sectional shapes and areas are formed on the inner and outer surfaces of the spiral shape of the housing 4, and the spiral-shaped housing 4 itself has a cross-section that varies along the entire length of the housing both in area, size and shape ( 11, FIG. 12, FIG. 13, FIG. 14, FIG. 15).

Thus, the housing 4 (Fig. 1, Fig. 2, Fig. 3) is made around the perimeter in the form of a multi-helical surface with helical lines around the perimeter of the casing 4 and with a variable bore, providing compression components of mortars and concrete.

The housing 4 (figure 2, figure 3) of a spiral shape with a multifaceted helical surface along its inner and outer perimeter with the formation on its outer and inner surfaces of multi-helical surfaces and unidirectional multi-helical lines can be made in another way.

Vibratory concrete mixer works as follows.

The perturbing force of the vibrator 3 through the walls of the housing 4 is transmitted to the particles of the components of the solutions or concrete located inside the housing 4. The particles of the components of the solutions or concrete make a complex movement, during which the process of mixing, preparation of solutions or concrete takes place. Particles of mortar or concrete components intensively interact with each other and, under the influence of vibration, rotate in planes perpendicular to the bore of the housing 4. Since the length of the housing 4 is the cross-sectional size, shape and location, the disturbance in the movement of particles of the components of the mortar or concrete is aggravated , i.e. there is an increase in the intensity of preparation of mortars or concrete. The presence of helical surfaces and helical lines around the perimeter of the housing 4 contributes not only to the complication of the trajectories of the particles of the components of the mortar or concrete, but also to their movement along the passage section of the housing 4 from the load (Fig. 15) to unload. When moving through the cross section of the casing 4 particles of mortars or concrete due to changes in the cross section in shape and size, compression and rarefaction zones are formed in each section of the casing 4 throughout its volume, which also intensifies the process of preparing mortars or concrete and expands technological capabilities.

Technical appraisal and economic benefits arise due to the implementation of a spiral-shaped vibrating concrete mixer body with multiple changes in the flow area in shape and size along its entire length and with the formation of multi-helical surfaces and unidirectional multi-helix lines along its outer and inner perimeter, which provide a change in direction of movement particle flows of components of mortars or concrete and the expansion of technological capabilities.

Claims (1)

A vibrating concrete mixer, comprising an elastic housing mounted on a base and equipped with a drive, characterized in that the housing is made in a spiral shape with a polyhedral helical surface along its inner and outer perimeters and is made of sections mounted from two subsections made of strips bent to one side along straight bending lines placed at an angle to the edges of the strips, and rolled into a ring with alternating formation along the length of the strip of different sizes of equilateral, isosceles and miscellaneous t polygons, and the sides of the triangles differ from each other by the same linear value, a multiple of an integer Δ, while on the two sides of the largest equilateral triangle, two identical different-sided triangles are placed with their largest sides, the sides of which are less than the side of the large equilateral triangle by one the same linear quantity Δ, a multiple of an integer, and to the middle side of one of which a smaller equilateral triangle is attached on one side of the strip, all sides of which are m is smaller than the side of the largest equilateral triangle by the same linear quantity Δ, which is a multiple of two, moreover, an isosceles triangle is attached to its second side of the smaller equilateral triangle, the sides of which are smaller than its base by a linear value Δ and, accordingly, smaller than the sides of the largest equilateral triangle by a linear value that is a multiple of three Δ, and to the lateral side of which an isosceles triangle is attached, the base of which is smaller than its lateral side by values Δ and, correspondingly, is smaller than the side of the largest equilateral triangle by 4Δ, while on the opposite side of the strip to the second equilateral triangle, an isosceles triangle is attached to its middle side with its side, the base of which is smaller than its side by Δ and correspondingly smaller than the side of the largest equilateral a triangle by 3Δ, and to the base of which an isosceles triangle is attached with its lateral side, the base of which is smaller than its lateral side orons by Δ and correspondingly smaller than the sides of the largest equilateral triangle by 4Δ, after bending the strip along the fold lines into the ring, the ends of the strips whose linear value is less than 4Δ by the sides of the largest equilateral triangle are connected with the formation of subsections, on which a hole in the form of a square, the side of which is smaller than the side of the largest equilateral triangle of the strip by 3Δ, and on the other hand a hole is formed in the form of an isosceles trapezoid, the base of which is equal to the side of the largest equilateral triangle, and the small base is smaller than the large base by 3Δ, and the sides are smaller than the large base by 2Δ, and the sub-sections are connected with trapezoidal openings to form sections with inlet and outlet openings in the form of squares whose sides equal to each other, and these holes are located at an angle, the value of which determines the spiral shape of the working chamber, while the sections are connected into the working chamber with rotation relative to each other and alternately, alternately rotate 90 ° each subsequent section relative to the previous one clockwise, and then the next section is connected with rotation in the opposite direction also 90 °.

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