Double-helix-tube pneumatic auxiliary stirring device for test

Abstract

The utility model relates to the technical field of stirring structures, in particular to a double-spiral-tube pneumatic auxiliary stirring device for a test, which comprises a stirring barrel, a first spiral tube and a second spiral tube, synchronous linkage pieces are arranged at the tops of the first spiral pipe and the second spiral pipe, and a driving piece at the top of the stirring barrel is connected with the synchronous linkage pieces so as to drive the first spiral pipe and the second spiral pipe to rotate synchronously; wherein the first spiral pipe and the second spiral pipe are internally provided with hollow cavities, a plurality of air hole groups are distributed along a spiral track and are communicated with the hollow cavities, and an air supply assembly for providing an air source is arranged at the top of the stirring barrel. Compared with the prior art, through the gas hole groups arranged on the first spiral pipe and the second spiral pipe, gas-assisted stirring can be carried out while stirring is carried out, the distribution of bubbles and gas in the stirring process is increased, and the stirring effect and uniformity are improved, so that the accuracy of a test result is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of stirring structures, in particular to a double-helix tube pneumatic auxiliary stirring device for experiments. Background Art

[0002] Natural rock powders such as limestone powder and granite powder, which are production waste, are gradually applied to concrete. The mud content of stone powder is the key to its application, which is mainly tested by the MB value test method in GB / T 30190.

[0003] The stirring device commonly used in the prior art is a structure in which multiple paddles are arranged on a stirring shaft. The two stirring shafts are rotated by a driving member to achieve uniform stirring of the liquid. However, due to the large difference in density between stone powder and standard sand, the stone powder is easily stratified during the stirring process and is difficult to stir evenly, affecting the accuracy of the test results. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a double-helix tube pneumatic auxiliary stirring device for experiments, which effectively solves the problems in the background technology.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a double-helix tube pneumatic auxiliary stirring device for testing, comprising: a stirring barrel, and a first spiral tube and a second spiral tube arranged in the stirring barrel;

[0006] A synchronous linkage member is provided on the top of the first spiral tube and the second spiral tube, and a driving member on the top of the mixing barrel is connected to the synchronous linkage member to drive the first spiral tube and the second spiral tube to rotate synchronously;

[0007] The first spiral tube and the second spiral tube have hollow cavities inside, and a plurality of pore groups are distributed along the spiral track, and the plurality of pore groups are connected to the hollow cavities, and an air supply component for providing an air source is provided on the top of the mixing barrel.

[0008] Further, the synchronous linkage member includes a driving gear connected to the driving member, and two driven gears respectively arranged at the ends of the first spiral tube and the second spiral tube;

[0009] The two driven gears are respectively meshed with the two sides of the driving gear.

[0010] Further, the driving member includes a driving motor and a first driving shaft connected to the driving motor;

[0011] The driving gear is connected to the end of the first driving shaft.

[0012] Furthermore, a gas flow sensor is provided at the air inlet of the first spiral tube and the second spiral tube.

[0013] Furthermore, a support positioning plate is provided at the bottom of the mixing barrel, and bottom extension sections of the first spiral tube and the second spiral tube extend into positioning grooves of the support positioning plate.

[0014] Furthermore, a bearing is provided in the positioning groove.

[0015] Furthermore, the pore group includes a plurality of plum blossom-shaped circular holes.

[0016] Furthermore, the first spiral tube and the second spiral tube are arranged to rotate relative to each other.

[0017] Furthermore, the spiral tube bodies of the first spiral tube and the second spiral tube have opposite rotation directions.

[0018] Furthermore, a limiting ring is provided below the synchronous linkage member.

[0019] The beneficial effects of the utility model are as follows: compared with the prior art, the utility model can perform gas-assisted stirring while stirring through the plurality of air hole groups arranged on the first spiral tube and the second spiral tube, increase the distribution of bubbles and gas during the stirring process, improve the stirring effect and uniformity, and thus ensure the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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 recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram of the structure of a double-helix tube pneumatic auxiliary stirring device for testing in an embodiment of the utility model;

[0022] Figure 2 It is a schematic diagram of the position relationship between the limit ring and the synchronous linkage member in the embodiment of the utility model;

[0023] Figure 3 This is a schematic diagram of the connection between the driving member and the synchronous linkage member in the embodiment of the utility model;

[0024] Figure 4 It is a schematic diagram of the arrangement of the pore groups in the embodiment of the utility model.

[0025] Figure numerals: 1, mixing barrel; 2, first spiral tube; 21, air hole group; 3, second spiral tube; 4, synchronous linkage; 41, driving gear; 42, driven gear; 5, driving member; 6, limiting ring. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0029] like Figures 1 to 4 The double-helical tube pneumatic auxiliary stirring device for testing shown comprises: a stirring barrel 1, and a first helical tube 2 and a second helical tube 3 arranged in the stirring barrel 1;

[0030] A synchronous linkage member 4 is provided on the top of the first spiral tube 2 and the second spiral tube 3, and a driving member 5 on the top of the mixing barrel 1 is connected to the synchronous linkage member 4 to drive the first spiral tube 2 and the second spiral tube 3 to rotate synchronously;

[0031] The first spiral tube 2 and the second spiral tube 3 are hollow cavities inside, and a plurality of pore groups 21 are distributed along the spiral track. The plurality of pore groups 21 are connected to the hollow cavities, and an air supply component for providing an air source is provided on the top of the mixing barrel 1 .

[0032] In the utility model, the driving member 5 is started, and the synchronous linkage member 4 is actuated through the driving member 5, further driving the first spiral tube 2 and the second spiral tube 3 to rotate. At the same time, the gas supply assembly starts to supply gas, and the gas enters through the hollow cavity and is discharged from the plurality of air hole groups 21, forming a stirring airflow around the first spiral tube 2 and the second spiral tube 3. Compared with the prior art, the plurality of air hole groups 21 provided on the first spiral tube 2 and the second spiral tube 3 can perform gas-assisted stirring while stirring, increase the distribution of bubbles and gas during the stirring process, improve the stirring effect and uniformity, and thus ensure the accuracy of the test results.

[0033] In a preferred embodiment of the utility model, the synchronous linkage member 4 includes a driving gear 41 connected to the driving member 5, and two driven gears 42 respectively arranged at the ends of the first spiral tube 2 and the second spiral tube 3; the two driven gears 42 are respectively meshed on both sides of the driving gear 41.

[0034] In order to ensure the feasibility of the rotation of the two driven gears 42 in the mixing barrel 1, bearings are arranged above and below the driven gears 42. The first spiral tube 2 and the second spiral tube 3 have the same rotation speed through the meshing transmission of the driving gear 41 and the two driven gears 42. The driven gears 42 are respectively meshed on both sides of the driving gear 41, which can effectively balance the rotation of the two spiral tubes, reduce the imbalance problem caused by a single drive, and thus improve the stability of the equipment. Preferably, the driving member 5 includes a driving motor and a first driving shaft connected to the driving motor; the driving gear 41 is connected to the end of the first driving shaft.

[0035] As a preferred embodiment of the utility model, a gas flow sensor (not shown) is provided at the air inlet of the first spiral tube 2 and the second spiral tube 3 to control the airflow size, thereby ensuring that the airflow injection diameter can cover every corner of the mixing barrel 1 to prevent solid particles from sinking.

[0036] In order to ensure the axial stability of the first spiral tube 2 and the second spiral tube 3 during the stirring process, a support positioning plate is provided at the bottom of the stirring barrel 1, and the bottom extension sections of the first spiral tube 2 and the second spiral tube 3 extend into the positioning groove of the support positioning plate, and bearings are provided in the positioning groove to reduce the rotational friction caused by stirring.

[0037] In the preferred embodiment of the present invention, the pore group 21 includes a plurality of plum blossom-shaped circular holes, and the plum blossom-shaped structure can converge the airflows through the plurality of circular holes to form an airflow column during the stirring process, thereby increasing the power of the airflow stirring.

[0038] In the utility model, the first spiral tube 2 and the second spiral tube 3 are relatively rotatably arranged, which can effectively avoid local dead angles and uneven mixing, and make the spiral tube bodies of the first spiral tube 2 and the second spiral tube 3 rotate in opposite directions, which can form a stronger convection effect in the mixing barrel 1, thereby improving the mixing effect.

[0039] In the utility model, the mixing barrel 1 comprises a barrel body and a barrel cover, and the synchronous linkage member 4 is installed in a mounting groove of the barrel cover facing the barrel body. In order to ensure the reliability of the installation, a limiting ring 6 is provided below the synchronous linkage member 4.

[0040] Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the description are only for explaining the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A double helix tube pneumatic assisted stirring device for testing, characterized in that: include: A stirring barrel, and a first spiral tube and a second spiral tube disposed in the stirring barrel; A synchronous linkage member is provided on the top of the first spiral tube and the second spiral tube, and a driving member on the top of the mixing barrel is connected to the synchronous linkage member to drive the first spiral tube and the second spiral tube to rotate synchronously; The first spiral tube and the second spiral tube have hollow cavities inside, and a plurality of air hole groups are distributed along the spiral track, and the plurality of air hole groups are connected to the hollow cavities, and an air supply component for providing an air source is provided on the top of the mixing barrel.

2. The experimental double helix tube pneumatic assisted stirring device according to claim 1, characterized in that: The synchronous linkage member includes a driving gear connected to the driving member, and two driven gears respectively arranged at the ends of the first spiral tube and the second spiral tube; The two driven gears are respectively meshed with the two sides of the driving gear.

3. The experimental double helix tube pneumatic assisted stirring device according to claim 2, characterized in that: The driving member includes a driving motor and a first driving shaft connected to the driving motor; The driving gear is connected to the end of the first driving shaft.

4. The experimental double helix tube pneumatic assisted stirring device according to claim 1, characterized in that: Gas flow sensors are provided at the air inlets of the first spiral tube and the second spiral tube.

5. The experimental double helical tube pneumatic assisted stirring device according to claim 1, characterized in that: A support and positioning plate is provided at the bottom of the mixing barrel, and bottom extension sections of the first spiral tube and the second spiral tube extend into positioning grooves of the support and positioning plate.

6. The experimental double helical tube pneumatic assisted stirring device according to claim 5, characterized in that: A bearing is arranged in the positioning groove.

7. The experimental double helical tube pneumatic assisted stirring device according to claim 1, characterized in that: The pore group includes a plurality of plum blossom-shaped circular holes.

8. The experimental double helix tube pneumatic assisted stirring device according to claim 1, characterized in that: The first spiral tube and the second spiral tube are arranged to rotate relative to each other.

9. The experimental double helical tube pneumatic assisted stirring device according to claim 1, characterized in that: The spiral tube bodies of the first spiral tube and the second spiral tube have opposite rotation directions.

10. The experimental double helical tube pneumatic assisted stirring device according to claim 1, characterized in that: A limiting ring is provided below the synchronous linkage member.

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