RU2257326C2 - Non-tilting bucket (variants) - Google Patents

Abstract

FIELD: building equipment, particularly large containers for building erection.

SUBSTANCE: non-tilting bucket comprises frame, loops for rope fastening formed on the frame, hopper with discharge orifice located in lower hopper part and closed by means of one sliding flap. Components of frame base are located outside projection of discharge orifice onto horizontal plane. Upper hopper part is made as a round cylinder, lower part thereof is made as round truncated cone. Hopper dimensions are interrelated by correlation including upper hopper part throat radius, lower hopper part height, discharge orifice radius and empirical coefficient. The bucket may be also provided with oscillator.

EFFECT: improved operating performance.

6 cl, 1 dwg, 2 tbl

Description

The invention relates to construction equipment and may find application in the construction of structures.

Known fixed bucket, consisting of a metal frame, hinges mounted on it and a metal hopper with a discharge opening, overlapped by a jaw shutter with a handle / Ya.G. Mogilevsky, I.G. Sovalov, A.L. Kopelevich. Machines and equipment for concrete and reinforced concrete works. Reference manual for construction vehicles. 2nd ed., Revised. and add. under the general. ed. M.D. Polosina, V.I. Polyakova. M .: Stroyizdat. 1993. Chapter 17 /. In this device, the hopper is made in the form of a straight parallelepiped, and the lower part is in the form of a truncated pyramid, facing down with a smaller base.

The disadvantage of this device is that on the side faces and at their joints there is adhesion of the working material, for example, such as concrete.

Closest to the claimed device is a non-rotating bucket, consisting of a frame, hinges mounted on it for fastening the cable and the hopper with an unloading hole in the lower part, overlapped by movable plates communicated with the handle through the rod system / Certificate for useful model of the Russian Federation No. 12112. Priority dated April 26, 1999, Byul. No. 12 dated December 16, 1999 /. Details of the frame base are located outside the projection of the discharge opening on a horizontal plane. A funnel is installed in the lower part of the hopper under the movable plates, and a removable movable guide element is fixed on the outer side surface of the funnel seat.

The disadvantage of this device is the adhesion of the loaded working material to the inner side surface of the lower part of the hopper.

To eliminate this drawback in a fixed bucket of the first type, consisting of a frame, hinges for fastening the cable fixed on it, a hopper with a discharge hole in the lower part, blocked by at least one movable plate, and in the fixed bucket the frame base parts are located outside the projection of the discharge openings on a horizontal plane, it is proposed:

- the upper part of the hopper is made in the form of a round cylinder;

- the lower part of the hopper is made in the form of a round truncated cone, oriented with a smaller base down;

- select the size of the hopper according to the relationship between the radius of the bore of the upper part of the bunker, the height of the lower part of the bunker, the radius of the bore of the discharge opening of the bunker and an empirical coefficient depending on the type of material used in the bunker.

To eliminate this drawback in a non-rotating bucket of the second type, consisting of a frame, hinges for fastening the cable fixed on it, a hopper with an unloading hole in the lower part, covered by at least one movable plate, and in the non-rotating bucket, the frame base parts are located outside the projection of the unloading openings on a horizontal plane, it is proposed:

- the upper part of the hopper is made in the form of a round cylinder;

- the lower part of the hopper is made in the form of a round truncated cone, oriented with a smaller base down;

- install a vibrator on the outer side surface of the lower part of the hopper;

- select the size of the hopper according to the relationship between the radius of the bore of the upper part of the bunker, the height of the lower part of the bunker, the radius of the bore of the discharge opening of the bunker and an empirical coefficient depending on the type of material used in the bunker.

In special cases, the implementation of fixed tubs of the first and second types is proposed:

- firstly, to inform the movable plate by means of rods with the handle or by means of the worm mechanism to connect it to the helm;

- secondly, the value of the empirical coefficient in the ratio for choosing the size of the hopper to choose depending on the type of working material.

These design solutions provide the desired result.

The invention is illustrated in the drawing, which shows a General view of a fixed bucket, in which the handle through a system of rods connected to the plates overlapping the discharge opening.

The following symbols are used in the drawing: 1 - upper part of the hopper; 2 - discharge hole; 3 - details of the base of the frame; 4 - frame; 5 - the lower part of the hopper; 6 - loop; 7 - movable plate; 8 - handle; 9 - a cable; 10 - thrust; 11 - vibrator.

The fixed bucket of the first type consists of a frame 4, hinges 6 fixed thereon for fastening the cable 9 and the hopper with a discharge opening 2 located in the lower part 5 of the hopper.

The discharge opening 2 is blocked by at least one movable plate 7.

Details of the base 3 of the frame 4 are located outside the projection of the discharge opening 2 on a horizontal plane.

The upper part 1 of the hopper is made in the form of a round cylinder.

The lower part 5 of the hopper is made in the form of a round truncated cone, oriented with a smaller base down.

The dimensions of the hopper are interconnected by the ratio:

where h is the height of the lower part of the hopper, m; R is the radius of the passage section of the upper part of the hopper, m; r is the radius of the bore of the discharge opening of the hopper, m; k is an empirical coefficient.

The value of the empirical coefficient k depends on the design and type of material loaded into the hopper.

The choice of the value of the empirical coefficient k is carried out in accordance with table 1.

Table 1 Type of working material Empirical coefficient k Concrete 1,66 Forming earth, concentrates, fine coal, foundry waste 1,56 Dry sand, large sorted coal 1.41 Crushed limestone, coke 1.31

A non-rotating bucket of the second type differs from a non-rotating bucket of the first type in that, firstly, it is additionally equipped with a vibrator 11 located on the outer side surface of the lower part of the hopper, and, secondly, with the values of the empirical coefficient k included in relation (1) . The value of the specified coefficient is determined by table 2.

In practice, it has been shown that when concrete is used as the working material, the distance between its free level of the working material and the free end part of the upper part of the hopper is at least 0.1 m. This allows for the transportation of a fixed bucket to exclude concrete overflow through the end part of the upper part of the hopper.

table 2 Type of working material Empirical coefficient k Concrete 1.19 Forming earth, concentrates, fine coal, foundry waste 1.15 Dry sand, large sorted coal 1.10 Crushed limestone, coke 1.06

The use of ratios for choosing the size of the hopper, taking into account the type of working material, eliminates cases of significant sticking (subsidence, deposition) of it to the inner surface of the side walls of the upper 1 and lower 5 parts of the hopper and allows you to take into account the overall capabilities of lifting mechanisms.

The device operates as follows.

Working material, such as concrete, is loaded through the upper base of the hopper. If necessary, the bucket lifting mechanism is moved to the desired point in the structure. After opening the discharge opening 2 using the handle 8 by means of rods 10 connected to the movable plates 7, the working material through the discharge opening 2 enters a predetermined location.

The use of a vibrator 11 on the side surface of the lower part 5 of the tub allows you to intensify the process of unloading the working material and the hopper.

The device is implemented as a prototype and has shown its performance.

Using the proposed device expands the functionality of a fixed tub, optimizes the size and volume of the tub, provides ease of maintenance.

Claims (6)

1. Non-rotating bucket, consisting of a frame, hinges fastened on it for attaching a cable, a hopper with an unloading hole in the lower part, blocked by at least one movable plate, and in the non-rotating bucket, the frame base parts are located outside the projection of the unloading hole on a horizontal plane, characterized in that the upper part of the hopper is made in the form of a round cylinder, the lower part of the hopper is made in the form of a round truncated cone, oriented with a smaller base down, and the dimensions of the bunker and are related by

where h is the height of the lower part of the hopper, m; R is the radius of the passage section of the upper part of the hopper, m; r is the radius of the bore of the discharge opening of the hopper, m; k is an empirical coefficient depending on the type of material loaded into the hopper and corresponding to 1.66 when pouring concrete into the hopper; 1.56 when filling the molding earth, or concentrates, or fine coal, or waste from foundries into the hopper; 1.41 when filling in the hopper of dry sand or large sorted coal; 1.31 when filling crushed limestone or coke into the hopper. 2. Fixed bucket according to claim 1, characterized in that the movable plate by means of rods communicated with the handle. 3. Fixed bucket according to claim 1, characterized in that the movable plate by means of a worm gear is connected to the helm. 4. A non-rotating bucket, consisting of a frame, hinges fastened on it for attaching a cable, a hopper with an unloading hole in the lower part, blocked by at least one movable plate, and in the non-rotating bucket, the frame base parts are located outside the projection of the unloading hole on a horizontal plane, characterized in that the upper part of the hopper is made in the form of a round cylinder, the lower part of the hopper is made in the form of a round truncated cone, oriented with a smaller base downwards, on the outer side second surface of the lower part of the hopper vibrator is mounted, and the hopper dimensions are related by

where h is the height of the lower part of the hopper, m; R is the radius of the passage section of the upper part of the hopper, m; r is the radius of the bore of the discharge opening of the hopper, m; k is an empirical coefficient depending on the type of material loaded into the hopper and corresponding to 1.19 when pouring concrete into the hopper; 1.15 when filling the molding earth, or concentrates, or small coal, or waste from foundries into the bunker; 1.10 when filling in the hopper of dry sand or large sorted coal; 1,06 when filling crushed limestone or coke into the hopper. 5. Fixed bucket according to claim 4, characterized in that the movable plate by means of rods communicated with the handle. 6. The fixed bucket according to claim 4, characterized in that the movable plate is connected to the helm by means of a worm gear.