CN114536559A - Concrete mixer - Google Patents

Abstract

The invention provides a concrete mixer, which relates to the technical field of concrete equipment, and comprises: the stirring device comprises a stirring drum, a stirring mechanism and a rotating shaft fixedly arranged on the stirring drum; wherein, the churn has an interior space. The stirring mechanism comprises a stirring blade accommodated in the inner space and a stirring shaft for installing and bearing the stirring blade. The rotating shaft is not parallel to the stirring shaft, and the axis of the rotating shaft and the axis of the stirring shaft are intersected at the centroid of the stirring cylinder; the during operation, the pivot with (mixing) shaft antiport, when the churn eccentric rotation, the (mixing) shaft takes stirring vane to take place to rotate for the churn, and rotates opposite direction, can mix foam and concrete more evenly, and can mix more qualified foaming concrete of production in unit interval, improved the efficiency of construction.

Description

a concrete mixer

technical field

The present application relates to the technical field of concrete equipment, and in particular, to a concrete mixer.

Background technique

Foamed concrete refers to the use of physical methods to prepare foam from an aqueous solution of a foaming agent, and then add the foam to a slurry made of cement, aggregates, admixtures, admixtures and water. Porous concrete. Foamed concrete is often used for roof insulation and slope finding, ground insulation cushion, foundation pit filling of upper turning beams, wall pouring, etc. The bulk density of concrete before foaming is about 1700kg/m ³ , and the weight of foamed concrete per unit volume can be adjusted according to the amount of foaming agent added. The foam and concrete are thoroughly mixed by a mixer to produce foamed concrete. The commonly used mixers have the following disadvantages: First, the difference between the foam density and the cement density is very large (the difference is about 40-50 times), and the ordinary mixing equipment is not easy to mix evenly. Second, the mixing efficiency is low, and the qualified foamed concrete produced by mixing in unit time is less.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present application is to propose a concrete mixer for the above-mentioned deficiencies of the prior art.

This concrete mixer includes:

a mixing drum, which has an interior space;

a stirring mechanism, which includes a stirring blade accommodated in the inner space, and a stirring shaft for mounting the stirring blade;

a rotating shaft fixedly arranged on the mixing drum;

The rotating shaft and the stirring shaft are not parallel, and the axis of the rotating shaft and the axis of the stirring shaft intersect at the centroid of the stirring drum; during operation, the rotating shaft and the stirring shaft rotate in opposite directions.

In some technical solutions, a power source is also included; the power source is used to directly drive the rotating shaft; the rotating shaft and the stirring shaft are driven by gears.

In some technical solutions, a first bevel gear is mounted on the rotating shaft; a second bevel gear is mounted on the stirring shaft; the first bevel gear is meshed with the second bevel gear for transmission.

In some technical solutions, the rotating shaft includes: a first rotating shaft portion disposed on a first side of the mixing drum, and a second rotating shaft portion disposed on a second side of the mixing drum; wherein the first rotating shaft portion and the second rotating shaft are on the same axis.

In some technical solutions, the stirring blade is a helical blade.

In some technical solutions, the power source for driving the rotating shaft is a motor.

In some technical solutions, the mixing drum is a split structure and is assembled from a plurality of splits.

The present application proposes a concrete mixer, which includes a mixing drum, a mixing mechanism, and a rotating shaft. The rotating shaft and the stirring shaft are not parallel, and the axis of the rotating shaft and the axis of the stirring shaft intersect at the centroid of the stirring drum. The technical solution of the present application has the following technical effects: during operation, when the mixing drum rotates eccentrically, the mixing shaft rotates with the mixing blades relative to the mixing drum, and the rotation direction is opposite, so that the foam and concrete can be mixed more uniformly, and More qualified foamed concrete can be mixed and produced in unit time, which improves the construction efficiency.

Description of drawings

FIG. 1 is a schematic structural diagram of a concrete mixer in an embodiment of the present application.

Detailed ways

The following are specific embodiments of the present application and the accompanying drawings to further describe the technical solutions of the present application, but the present application is not limited to these embodiments. In the following description, specific details such as specific configurations and components are provided merely to assist in a comprehensive understanding of embodiments of the present application. Accordingly, it should be apparent to those skilled in the art that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present application. Also, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other if there is no conflict.

Referring to FIG. 1 , the present application proposes a concrete mixer, including: a mixing drum 10 , a mixing mechanism 20 , and a rotating shaft 30 fixed on the mixing drum 10 . Among them, the mixing drum 10 has an inner space 11 . The stirring mechanism 20 includes a stirring blade 21 accommodated in the inner space 11 , and a stirring shaft 22 for mounting and carrying the stirring blade 21 . The rotating shaft 30 and the stirring shaft 22 are not parallel, and the axis of the rotating shaft 30 and the axis of the stirring shaft 22 intersect at the centroid of the stirring drum 10; during operation, the rotating shaft 30 is opposite to the stirring shaft 22 turn.

The stirring blade 21 is provided inside the stirring drum 10 . When the concrete mixer is working, the rotating shaft 30 is not parallel to the mixing shaft 22 , the mixing drum 10 rotates in the positive direction of the axis of the rotating shaft 30 , and the mixing blade 21 rotates in the opposite direction along the axis of the mixing shaft 22 . The materials in the mixing drum 10 can be fully stirred under the combined action of the mixing drum 10 and the mixing blades 21, so that the foaming agent and the concrete are fully mixed. When the concrete mixer is working, the rotation axes of the mixing drum 10 and the mixing blade 21 are not parallel and rotate in opposite directions, so that the materials in the mixing drum 10 can be fully mixed.

It should be noted that, referring to FIG. 1 , the rotating shaft 30 and the stirring shaft 22 are not parallel, and the axis A1 of the rotating shaft 30 and the axis A2 of the stirring shaft 22 intersect at the centroid O of the stirring drum 10, and the rotating shaft The rotation direction S1 of the 30 is opposite to the rotation direction S2 of the stirring shaft 22 . During the working process, the stirring shaft 22 and the stirring blade 21 will rotate relative to the stirring drum 10 .

Specifically, it also includes a power source; the power source first outputs power to the rotating shaft 30, and transmits the power using the power connection relationship between the rotating shaft 30 and the stirring shaft 22, and the stirring shaft 22 moves passively. In a specific example, the power source is used to directly drive the rotating shaft 30 ; the rotating shaft 30 and the stirring shaft 22 are driven by gears. The power source can be an electric device, a pneumatic device, a hydraulic device, and the like. In a specific example, the power source for driving the rotating shaft 30 is a motor. Specifically, a first bevel gear 33 is mounted on the rotating shaft 30 ; a second bevel gear 23 is mounted on the stirring shaft 22 ; the first bevel gear 33 meshes with the second bevel gear 23 for transmission. The bevel gear transmission is adopted here, thereby allowing the stirring shaft 22 and the rotating shaft 30 to be arranged at different angles. Here, the meshing transmission between the first bevel gear 33 and the second bevel gear 23 keeps the stirring shaft 22 and the rotating shaft 30 rotating in the opposite direction. With the rotation of the power source, the rotating shaft 30 also rotates, and drives the stirring shaft 22 to rotate through the meshing transmission of the bevel gear.

1 , the rotating shaft 30 includes: a first rotating shaft portion 31 disposed on the first side of the mixing drum 10, and a second rotating shaft portion 32 disposed on the second side of the mixing drum 10; wherein, the first rotating shaft portion 31 and the The second rotating shaft portion 32 is located on the same axis. Here, the rotating shaft 30 is only connected and fixed on both sides of the outside of the mixing drum 10 , and the first rotating shaft portion 31 and the second rotating shaft portion 32 are respectively installed on the fixed frame. The power source can be connected with the first rotating shaft part 31 for power, so that the first rotating shaft part 31 , the second rotating shaft part 32 and the mixing drum 10 can rotate eccentrically around the axis as a whole.

The stirring mechanism 20 includes a stirring shaft 22 and a stirring blade 21 . The stirring shaft 22 passes through the inner space 11 of the stirring drum 10 and partially penetrates out of the stirring drum 10 . The stirring blade 21 rotates synchronously with the stirring shaft 22 . In some embodiments, the stirring blade 21 is a helical blade.

The mixing drum 10 is used for accommodating the material to be mixed, and its shape can be designed according to actual needs, which is not limited here. In some embodiments, the mixing drum 10 is a split structure, which is assembled from a plurality of splits.

The present application proposes a concrete mixer, which includes a mixing drum, a mixing mechanism, and a rotating shaft. The rotating shaft is not parallel to the stirring shaft. The technical solution of the present application has the following technical effects: during operation, when the mixing drum rotates eccentrically, the mixing shaft rotates with the mixing blades relative to the mixing drum, and the rotation direction is opposite, so that the foam and concrete can be mixed more uniformly, and It can mix and produce more qualified foamed concrete in unit time.

It should be noted that the terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural as well, furthermore, it is to be understood that when the terms "comprising" and/or "including" are used in this specification, it indicates that There are features, steps, acts, devices, components, and/or combinations thereof.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless expressly and specifically defined otherwise.

The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art to which this application pertains can make various modifications or additions to the specific embodiments described or substitute in similar manners, but will not deviate from the spirit of the application or go beyond the definitions of the appended claims range.

Claims (7)

1. a concrete mixer, is characterized in that, comprises: a mixing drum (10) having an interior space (11); a stirring mechanism (20), comprising a stirring blade (21) accommodated in the inner space (11), and a stirring shaft (22) for mounting the stirring blade (21); a rotating shaft (30) fixedly arranged on the mixing drum (10); The rotating shaft (30) is not parallel to the stirring shaft (22), and the axis of the rotating shaft (30) and the axis of the stirring shaft (22) intersect at the centroid of the stirring drum (10); during operation, The rotating shaft (30) and the stirring shaft (22) rotate in opposite directions. 2 . The concrete mixer according to claim 1 , further comprising a power source; the power source is used to directly drive a rotating shaft ( 30 ); the rotating shaft ( 30 ) and the mixing shaft ( 22 ) through gear transmission. 3. The concrete mixer according to claim 2, wherein a first bevel gear (33) is installed on the rotating shaft (30); and a second bevel gear (23) is installed on the mixing shaft (22) ); the first bevel gear (33) meshes with the second bevel gear (23) for transmission. 4. The concrete mixer according to claim 1, wherein the rotating shaft (30) comprises: a first rotating shaft part (31) arranged on the first side of the mixing drum (10); 10) A second rotating shaft portion (32) on the second side; wherein the first rotating shaft portion (31) and the second rotating shaft portion (32) are located on the same axis. 5. The concrete mixer according to claim 1, wherein the mixing blade (21) is a helical blade. 6. The concrete mixer according to claim 2, wherein the power source for driving the rotating shaft (30) is a motor. 7 . The concrete mixer according to claim 1 , wherein the mixing drum ( 10 ) has a split structure and is assembled from a plurality of split bodies. 8 .

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