Concrete stirring device

Abstract

The utility model relates to the technical field of concrete mixing, in particular to a concrete mixing device, which comprises a mixing box, a stirring shaft, a stirring shaft and a driving device, first stirring blades are fixedly arranged on the first stirring shaft, and the first stirring shaft is rotatably arranged on the stirring box; the second stirring shaft is fixedly provided with a second stirring blade, the second stirring blade is provided with a plurality of flat plate parts, the flat plate parts are arranged in the axial direction of the second stirring shaft, and every two adjacent flat plate parts form an included angle on the circumference of the second stirring shaft; the driving mechanism is connected with the first stirring shaft and the second stirring shaft and is used for driving the first stirring shaft and / or the second stirring shaft to rotate. According to the concrete stirring device disclosed by the utility model, the concrete at the bottom side of the first stirring shaft is mainly driven by the second stirring shaft, so that the concrete in the stirring box integrally flows, and the problem that a dead zone is easy to exist in a stirring machine in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete mixing, and more specifically, to a concrete mixing device. Background Art

[0002] The term concrete usually refers to cement concrete obtained by mixing cement as a binder, sand and stone as aggregates and water (which may contain admixtures and additives) in a certain proportion. Concrete is widely used in casting of houses.

[0003] In reality, concrete and water are usually mixed by a mixer. The mixer in the prior art is usually equipped with a mixing shaft with spiral blades for long-term mixing to achieve a uniform state of water and aggregate. However, the gap between the spiral blades and the side wall of the mixer in the prior art usually forms a mixing dead zone. The concrete in the dead zone has poor fluidity, which will increase the mixing time of the whole mixing process on the one hand, and affect the overall mixing quality on the other hand. Utility Model Content

[0004] The main purpose of the utility model is to provide a concrete mixing device, aiming to solve the problem that dead zones are easily present in mixers in the prior art.

[0005] In order to solve the above technical problems, a concrete mixing device is proposed, comprising: a mixing box, provided with a containing cavity for containing materials;

[0006] A first stirring shaft, on which a first stirring blade is fixedly provided, and the first stirring shaft is rotatably arranged in the stirring box;

[0007] A second stirring shaft is fixedly provided with a second stirring blade, wherein the second stirring blade is provided with a plurality of flat plate portions, the plurality of flat plate portions are arranged along the axial direction of the second stirring shaft, and two adjacent flat plate portions are provided with an angle on the circumference of the second stirring shaft;

[0008] A driving mechanism is connected to the first stirring shaft and the second stirring shaft, and is used to drive the first stirring shaft and / or the second stirring shaft to rotate.

[0009] In any of the above technical solutions, further, a spacing is provided between two adjacent flat plate portions in the axial direction of the second stirring shaft, and a connecting plate portion connecting the two flat plate portions is provided at the spacing.

[0010] In any of the above technical solutions, further, a cutting portion is provided on one side of the flat plate portion, and the cutting portion is arranged parallel to or coplanar with a radial plane of the second stirring shaft.

[0011] In any of the above technical solutions, further, the cutting portion is provided with a through hole.

[0012] In any of the above technical solutions, further, the sum of the radius of the first stirring blade and the radius of the second stirring blade is greater than the distance between the first stirring shaft and the second stirring shaft.

[0013] In any of the above technical solutions, further, it also includes: a synchronization component;

[0014] The synchronization component is connected to the first stirring shaft and the second stirring shaft respectively, and the synchronization component is used to make the first stirring shaft and the second stirring shaft rotate synchronously.

[0015] In any of the above technical solutions, further, it also includes: a rotating mechanism and a frame:

[0016] The mixing box is rotatably arranged on the frame, the rotating mechanism is connected to the mixing box, and the rotating mechanism is used to drive the mixing box to rotate.

[0017] The beneficial effects are:

[0018] 1. The concrete mixing device of the utility model performs a main mixing action through a first mixing shaft in a mixing box and a first mixing blade thereon, and performs a secondary mixing action through a second mixing blade on a second mixing shaft, so as to stir the concrete on the bottom side of the mixing box and drive the concrete in the dead zone around the first mixing blade to flow;

[0019] 2. At the same time, the second stirring blade is configured to have a plurality of flat plate portions, and the flat plate portions are arranged along the axial direction of the second stirring shaft, which can effectively drive the concrete flow in the dead zone around the first stirring blade and improve the flowability of the concrete in the entire mixing box;

[0020] 3. The two adjacent flat plate parts are staggered on the circumference to reduce the resistance of the second stirring shaft when it rotates. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a three-dimensional structural schematic diagram of a concrete mixing device of the utility model;

[0023] Figure 2 The utility model is a three-dimensional structural schematic diagram of a first stirring shaft and a second stirring shaft in a concrete stirring device.

[0024] The following are the descriptions of the reference numerals:

[0025] 1. Mixing box;

[0026] 2. a first stirring shaft; 201. a first stirring blade;

[0027] 3. Second stirring shaft; 301. Second stirring blade; 302. Flat plate portion; 303. Connecting plate portion; 304. Cutting portion;

[0028] 4. Driving mechanism;

[0029] 5. Synchronization components;

[0030] 6. Rotating mechanism;

[0031] 7. Frame. DETAILED DESCRIPTION

[0032] Below, the example embodiments according to the present application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application, and it should be understood that the present application is not limited to the example embodiments described herein. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0033] It should be noted that, as shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "a kind" and / or "the" do not specifically refer to the singular, but may also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list, and the method or device may also include other steps or elements.

[0034] If the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0037] The utility model provides a concrete mixing device, which mainly drives the concrete on the bottom side of the first mixing shaft through the second mixing shaft, so as to promote the overall flow of the concrete in the mixing box.

[0038] A concrete mixing device of the present application is described in detail through the following embodiments.

[0039] In this embodiment, if Figure 1 and Figure 2 As shown, the concrete mixing device comprises: a mixing box 1, which is provided with a containing cavity for containing materials;

[0040] A first stirring shaft 2 is fixedly provided with a first stirring blade 201, and the first stirring shaft 2 is rotatably arranged on the stirring box 1;

[0041] The second stirring shaft 3 is fixedly provided with a second stirring blade 301, and the second stirring blade 301 is provided with a plurality of flat plate portions 302, and the plurality of flat plate portions 302 are arranged along the axial direction of the second stirring shaft 3, and two adjacent flat plate portions 302 are provided with an angle on the circumference of the second stirring shaft 3;

[0042] The driving mechanism 4 is connected to the first stirring shaft 2 and the second stirring shaft 3 and is used for driving the first stirring shaft 2 and / or the second stirring shaft 3 to rotate.

[0043] In the present technical scheme, the mixing box 1 is arranged horizontally, and the top side is open. The first stirring shaft 2 and the second stirring shaft 3 are both arranged horizontally and rotatably on the left and right side walls of the mixing box 1. The height of the first stirring shaft 2 is higher than the height of the second stirring shaft 3. The first stirring shaft 2 is arranged at a rear position, and the second stirring shaft 3 is arranged at a front position. The first stirring blade 201 is a continuous spiral blade. The diameter of the first stirring blade 201 is relatively large. There is a certain gap between the first stirring blade 201 and the bottom surface of the mixing box 1. The second stirring blade 301 is arranged closer to the bottom surface of the mixing box 1 relative to the first stirring blade 201. The flat plate portion 302 is a plate-like structure, which is fixed on the surface of the second stirring shaft 3 parallel to the left and right directions. There are five flat plate portions 302 in total, and the five flat plate portions 302 are evenly arranged from left to right. The angle difference between any two adjacent flat plate portions 302 is seventy-two degrees, and the five flat plate portions 302 are arranged in a clockwise or counterclockwise order on the circumference. The driving mechanism 4 is a driving motor connected to the first stirring shaft 2 via a belt, and the second stirring shaft 3 is connected to the first stirring shaft 2 via a synchronization component 5, so that the first stirring shaft 2 and the second stirring shaft 3 can rotate synchronously.

[0044] In some technical solutions, since the first stirring blade 201 and the second stirring blade 301 partially overlap in the radial plane, it is necessary to control the first stirring shaft 2 and the second stirring shaft 3 to rotate synchronously to avoid collision between the first stirring blade 201 and the second stirring blade 301 .

[0045] In some other technical solutions, the driving mechanism 4 is two motors, which drive the first stirring shaft 2 and the second stirring shaft 3 respectively.

[0046] In some other technical solutions, there is no overlapping portion between the first stirring blade 201 and the second stirring blade 301 in the radial plane.

[0047] In this embodiment, a gap is provided between two adjacent flat plate portions 302 in the axial direction of the second stirring shaft 3 , and a connecting plate portion 303 connecting the two flat plate portions 302 is provided at the gap.

[0048] In the present technical solution, the aforementioned spacing refers to a certain distance between the flat plate portion 302 on the left and the adjacent flat plate portion 302 on the right, and a connecting plate portion 303 connecting the two is provided on the two flat plate portions 302. Specifically, four connecting plate portions 303 are provided, so that the five flat plate portions 302 and the four connecting plate portions 303 form a nearly spiral effect on the circumference of the second stirring shaft 3, so that the second stirring blade 301 can push the concrete to flow to the left or right when acting on the concrete, and can improve the flow effect of the concrete at the second stirring shaft 3 compared to the solution with only the flat plate portion 302.

[0049] In this embodiment, a cutting portion 304 is provided on one side of the flat plate portion 302 , and the cutting portion 304 is arranged parallel to or coplanar with a radial surface of the second stirring shaft 3 .

[0050] In the present technical solution, the cutting portion 304 is vertically arranged on the flat plate portion 302, and the cutting portion 304 is arranged in a triangular shape, and the closer to the axis of the second stirring shaft 3, the smaller the radial length of the cutting portion 304. The cutting portion 304 is arranged to cut the concrete in the mixing box 1, thereby reducing the static resistance of the concrete in the mixing box 1.

[0051] In this embodiment, the cutting portion 304 is provided with a through hole.

[0052] In the present technical solution, since the concrete in the mixing box 1 can be urged to move left or right as a whole to a certain extent during the rotation of the first stirring blade 201 and the second stirring blade 301, a through hole is provided on the cutting portion 304 to reduce the resistance of the cutting portion 304 to the movement of the concrete and avoid the cutting portion 304 from being broken by long-term impact.

[0053] In this embodiment, the sum of the radius of the first stirring blade 201 and the radius of the second stirring blade 301 is greater than the distance between the first stirring shaft 2 and the second stirring shaft 3 .

[0054] In the technical solution, the first stirring blade 201 and the second stirring blade 301 partially overlap in the vertical plane, and are arranged so that the first stirring blade 201 and the second stirring blade 301 are staggered at a certain angle on the circumference, and then the first stirring shaft 2 and the second stirring shaft 3 are controlled to rotate synchronously, so as to avoid the first stirring blade 201 and the second stirring blade 301 from having teeth hit. In this way, when the second stirring blade 301 stirs the concrete, the concrete at the bottom can be directly sent into the stirring area of ​​the first stirring blade 201.

[0055] In this embodiment, it also includes: a synchronization component 5;

[0056] The synchronization component 5 is connected to the first stirring shaft 2 and the second stirring shaft 3 respectively, and the synchronization component 5 is used to make the first stirring shaft 2 and the second stirring shaft 3 rotate synchronously.

[0057] In the present technical solution, the synchronization component 5 includes two gears of equal size and the same number of teeth and a chain respectively fixed on the first stirring shaft 2 and the second stirring shaft 3, and the synchronization component 5 is set to control the synchronous rotation of the first stirring shaft 2 and the second stirring shaft 3.

[0058] In this embodiment, it also includes: a rotating mechanism 6 and a frame 7:

[0059] The mixing box 1 is rotatably disposed on the frame 7 , and the rotating mechanism 6 is connected to the mixing box 1 , and the rotating mechanism 6 is used to drive the mixing box 1 to rotate.

[0060] In the technical solution, the frame 7 is arranged on the ground, the mixing box 1 is rotatably arranged on the frame 7, and the rotating mechanism 6 is a motor. The rotating mechanism 6 is arranged to drive the mixing box 1 to rotate within a certain angle, adjust the angle of the gravity of the concrete compared to the mixing box 1, promote the flow of the concrete, and also facilitate the pouring of the concrete in the mixing box 1.

[0061] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A concrete mixing device, characterized in that: include: A mixing box (1) is provided with a containing cavity for containing materials; A first stirring shaft (2) is fixedly provided with a first stirring blade (201), and the first stirring shaft (2) is rotatably arranged on the stirring box (1); A second stirring shaft (3) is fixedly provided with a second stirring blade (301), the second stirring blade (301) is provided with a plurality of flat plate portions (302), the plurality of flat plate portions (302) are arranged along the axial direction of the second stirring shaft (3), and two adjacent flat plate portions (302) are provided with an angle on the circumference of the second stirring shaft (3); A driving mechanism (4) is connected to the first stirring shaft (2) and the second stirring shaft (3), and is used to drive the first stirring shaft (2) and / or the second stirring shaft (3) to rotate.

2. The concrete mixing device according to claim 1, characterized in that: Two adjacent flat plate portions (302) are spaced apart in the axial direction of the second stirring shaft (3), and a connecting plate portion (303) connecting the two flat plate portions (302) is provided at the spaced apart position.

3. The concrete mixing device according to claim 1 or 2, characterized in that: A cutting portion (304) is provided on one side of the flat plate portion (302), and the cutting portion (304) is arranged parallel to or coplanar with a radial surface of the second stirring shaft (3).

4. The concrete mixing device according to claim 3, characterized in that: The cutting portion (304) is provided with a through hole.

5. The concrete mixing device according to claim 1, characterized in that: The sum of the radius of the first stirring blade (201) and the radius of the second stirring blade (301) is greater than the distance between the first stirring shaft (2) and the second stirring shaft (3).

6. The concrete mixing device according to claim 5, characterized in that: Also includes: Synchronous components (5); The synchronization component (5) is connected to the first stirring shaft (2) and the second stirring shaft (3) respectively, and the synchronization component (5) is used to make the first stirring shaft (2) and the second stirring shaft (3) rotate synchronously.

7. The concrete mixing device according to claim 1, characterized in that: Also includes: Rotating mechanism (6) and frame (7): The mixing box (1) is rotatably arranged on the frame (7), and the rotating mechanism (6) is connected to the mixing box (1). The rotating mechanism (6) is used to drive the mixing box (1) to rotate.

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