Stirring machine with high concentricity

Abstract

The utility model discloses a stirrer with high concentricity, and belongs to the technical field of lithium battery stirring equipment. The embodiment of the utility model provides a high-concentricity stirrer, which comprises an output shaft arranged on a stirrer main body, the output shaft is provided with an accommodating cavity, the output shaft is provided with a combination part, and the output shaft is provided with an end part; the fixing piece is provided with a step, and at least two protruding parts with the same size and height are arranged on the step; and the convex parts are uniformly distributed on the step. A through hole is formed in the middle of the step; an arc-shaped part, a supporting part, a tangent surface part and a rod body are arranged on the stirring assembly; the accommodating cavity accommodates a connecting body formed by the arc-shaped part and the tangent surface part; the supporting part is located between the output shaft and the protruding part. And the fixing piece is matched and connected with the combining part, so that the problem of low concentricity caused by the connecting process of the stirring rod assembly can be solved.

Description

Technical Field

[0001] The present application belongs to the technical field of lithium battery stirring equipment, and specifically relates to a mixer with high concentricity. Background Art

[0002] The existing lithium-ion battery stirring device adopts a two-stage gear structure transmission, and reference may be made to patent number 2016200350654, entitled "A Lighting Cement Mixer Structure".

[0003] Currently, the output shaft and the mixing assembly are connected by a threaded connection. This connection structure serves three purposes: first, fixing the connection, second, positioning, and third, centering. This connection method is simple and reliable, but it requires excessively high thread machining precision, increasing manufacturing costs. After a period of use, thread wear causes significant concentricity deviation between the mixing assembly and the output shaft, causing the mixing assembly to shake violently, exacerbating wear on the mixer's transmission gears, and shortening the mixer's service life. Summary of the Invention

[0004] The purpose of the embodiments of the present application is to provide a mixer with high concentricity, which can solve the problem of low concentricity caused by the connection process of the stirring rod assembly.

[0005] The embodiment of the present application provides a mixer with high concentricity, comprising:

[0006] An output shaft is provided on the mixer body, the output shaft is provided with a receiving cavity, the output shaft is provided with a coupling portion, and the output shaft is provided with an end portion;

[0007] A fixing member is provided with a step, and a protrusion is provided on the step; the number of protrusions is several and evenly distributed on the step, and the number of protrusions is at least two, and the size and height are equal. A through hole is provided in the middle of the step; and a stirring assembly is also included, wherein the stirring assembly is provided with an arc portion, a support portion, a cut portion, and a rod body; the accommodating cavity accommodates a connector formed by the arc portion and the cut portion; the support portion is located between the output shaft and the protrusion; the fixing member is connected to the joint portion through threaded engagement; the protrusion fixes the support portion between the output shaft and the fixing member, so that the fixing member and the stirring assembly fixedly connected to the fixing member will not fall off.

[0008] The arcuate portion is in the shape of a circular arc, and the diameter of the through hole is larger than the diameter of the arcuate portion, so that the connector composed of the arcuate portion and the cut surface portion passes through the through hole and enters the accommodating cavity. The cut surface portion serves as a key connection. When the output shaft of the mixer rotates, the stirring assembly is driven to rotate and stir through the cut surface portion. In the above process, a surface that cooperates with the arcuate portion and the cut surface portion is provided in the accommodating cavity. The arcuate portion and the arcuate surface that cooperates with the arcuate portion can achieve a centering function. The connection relies on the threaded connection between the fixing member and the joint portion. At this time, the centering and connection functions are separated, so that the concentricity of the output shaft and the stirring assembly is higher, and the concentricity is not easily reduced as the number of uses increases. The rod body and the support portion are integrally formed, and the rod body is perpendicular to the support portion, and the rod body passes through the middle portion of the support portion, so as to facilitate the centering function. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 Schematic diagram of the output shaft 100 and the fixing member 200 disclosed in the embodiment of the present application;

[0010] Figure 2 This is a schematic structural diagram of an output shaft 100 of a mixer with high concentricity disclosed in an embodiment of the present application;

[0011] Figure 3 Schematic diagram of a stirring assembly 300 of a mixer with high concentricity disclosed in an embodiment of the present application;

[0012] Figure 4 yes Figure 3 Schematic diagram of the structure of A in the middle;

[0013] Figure 5 This is an overall schematic diagram of a mixer with high concentricity disclosed in an embodiment of the present application;

[0014] Figure 6 yes Figure 5 Partial cross-sectional view;

[0015] Description of reference numerals:

[0016] Output shaft 100; accommodating cavity 110; coupling portion 120; end portion 130; fixing member 200; step 210; raised portion 211; through hole 220; stirring assembly 300; arc portion 310; supporting portion 320; cut portion 330; rod body 340 DETAILED DESCRIPTION

[0017] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0018] Below, in conjunction with the accompanying drawings, a mixer with high concentricity provided by the embodiment of the present application is described in detail through specific embodiments and application scenarios.

[0019] refer to Figures 1-6 The embodiment of the present application provides a mixer with high concentricity, comprising: an output shaft 100 provided on the mixer body, such as Figure 2 As shown, the output shaft 100 is provided with a receiving cavity 110, and a surface is provided in the receiving cavity 110 to match the arc portion 310 and the cut portion 330. The arc portion 310 plays a centering role, and the cut portion 330 plays a transmission role.

[0020] The output shaft 100 also has a coupling portion 120, and the coupling portion 120 is provided with an external thread on the outside, and the external thread is threadedly connected with the internal thread on the fixing member 200. The threaded connection does not play the role of determining concentricity, but only plays the role of fixing, fixing the stirring assembly 300 on the mixer housing, such as Figure 1 As shown, the output shaft 100 is provided with an end portion 130 ; the end portion 130 can abut against the support portion 320 to play a role of limiting.

[0021] The fixing part 200 is provided with a step 210, and a protrusion 211 is provided on the step 210; the protrusion 211 is provided to facilitate processing and control processing accuracy, and at the same time, the protrusion 211 can also make the support part 320 bear the force evenly. A through hole 220 is provided in the middle of the step 210; the diameter of the through hole 220 should be at least larger than the diameter of the arc part 310. The arc part 310 is an arc, and the through hole 220 is provided to allow the arc part 310 to pass through. Figure 6 There are at least two protrusions 211 evenly distributed circumferentially on the step 210 , and the size and height are equal, so that the support portion 320 is evenly stressed and not prone to tilting.

[0022] The number of protrusions 211 is inversely proportional to the curvature of the protrusions 211. When there are two protrusions 211, the curvature of the protrusions 211 should be at least 60°. When there are six protrusions 211, the curvature of the protrusions 211 should be at least 10°. This inverse proportion is intended to prevent the curvature of the protrusions 211 from being too small when there are only two protrusions 211, causing the protrusions 211 to not be properly engaged with the support portion 320, thereby causing the stirring assembly 300 to shake.

[0023] The stirring assembly 300 is provided with an arc portion 310, a support portion 320, a cut portion 330 and a rod body 340; Figure 5 As shown, the rod body 340 is also provided with a stirring rod for stirring.

[0024] Combine Figure 2 、 Figure 4 and Figure 6 The accommodating cavity 110 accommodates the connection formed by the arcuate portion 310 and the cut surface portion 330. When connected, the support portion 320 is located between the output shaft 100 and the protrusion 211. The support portion 320 is preferably a rotating body structure for ease of processing. The fixing member 200 is threadedly connected to the connecting portion 120. The fixing member 200 serves to secure the stirring assembly 300, preventing it from falling off the mixer body, that is, from falling off the stirring assembly 300 and the output shaft 100, thereby ensuring smooth transmission.

[0025] The rod body 340 and the support portion 320 are integrally formed, and the rod body 340 is perpendicular to the support portion 320, and the rod body 340 passes through the middle portion of the support portion 320. The support portion 320 is preferably a rotating cylinder, and the upper and lower planes are parallel, which is convenient for processing. The plurality of protrusions 211 form a plane. After the protrusions 211 are against the support portion 320, the protrusions 211 can contact the non-rotating surface of the support portion 320. The rod body 340 is also perpendicular to the plane formed by the plurality of protrusions 211. The fixing member 200 is concentric with the rod body 340, and the fixing member 200 is concentric with the output shaft 100, which also realizes that the rod body 340 is concentric with the rotating shaft 100. Ultimately, the concentricity deviation between the stirring component and the output shaft of the mixer is small, the shaking of the stirring component is reduced, and the service life of the machine is increased.

[0026] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A mixer with high concentricity, characterized in that: include: An output shaft is arranged on the mixer body, the output shaft is provided with a receiving cavity, the output shaft is provided with a coupling portion, and the output shaft is provided with an end portion; A fixing member, wherein the fixing member is provided with a step, a convex portion is provided on the step, and a through hole is provided in the middle of the step; A stirring assembly, wherein the stirring assembly is provided with an arc portion, a supporting portion, a cut portion and a rod body; The accommodating cavity accommodates a connecting body formed by the arc-shaped portion and the cut-away portion; the supporting portion is located between the output shaft and the raised portion; and the fixing piece is cooperatively connected with the coupling portion.

2. A mixer with high concentricity according to claim 1, characterized in that: The number of the protrusions is several and they are evenly distributed on the steps.

3. A mixer with high concentricity according to claim 1, characterized in that: The arc-shaped portion is in the shape of a circular arc, and the diameter of the through hole is larger than the diameter of the arc-shaped portion.

4. A mixer with high concentricity according to claim 1, characterized in that: The accommodating cavity is provided with a surface matching with the arc-shaped portion and the cut surface portion.

5. A high concentricity mixer according to any one of claims 1 to 4, characterized in that: The number of the protrusions is at least two, and the size and height are equal.

6. A mixer with high concentricity according to claim 5, characterized in that: The rod body and the support part are integrally formed, the rod body is perpendicular to the support part, and the rod body passes through the middle part of the support part.

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