A device for producing automotive power protection aluminum

Abstract

The utility model provides a kind of production device for automobile power protection aluminum, it is related to automobile manufacturing technical field, including mixing cavity;Pipe, axial rotation is arranged in the mixing cavity, and be configured as executing random intermittent rotation;Multiple stirring pipe arms, perpendicularly set in the outer wall of the pipe and along its axial equidistant distribution, and with the pipe cooperation, form circumferential shear flow in mixing cavity;Multiple guides, along the equidistant setting of corresponding stirring pipe arm axial, and independently rotatable communication in the outer wall of stirring pipe arm.The utility model is coupled by the random intermittent rotation of pipe and the no predetermined angle instantaneous deflection of guide in the intermittent switching moment of this rotation, so that additive is dynamically injected into the shear flow field of mixing cavity in random time point with random spatial direction, to form the chaotic mixing effect of space-time coupling in mixing cavity, significantly improve the mixing uniformity and efficiency of additive and raw material.

Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing technology, and in particular to a production device for automobile power protection aluminum. Background Technology

[0002] Automotive power protection aluminum is a special aluminum alloy material used in key automotive power components. Its production process requires the uniform mixing of various trace additives into the aluminum matrix. Traditional mixing devices often use a continuously rotating stirring shaft combined with a fixed or simply reciprocating nozzle. This results in a highly predictable mixing pattern, which can easily lead to localized aggregation and uneven dispersion of additives, creating mixing dead zones and consequently affecting the uniformity and stability of the material's mechanical properties.

[0003] Although some technical attempts have been made to improve the situation through variable speed stirring or multi-directional nozzles, none of them have broken through the regularity limitations in the time and space dimensions, making it difficult to achieve truly three-dimensional global random and efficient mixing, which restricts further improvement of product performance. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a production apparatus for automotive power protection aluminum, which solves the technical problems mentioned in the background section.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a production apparatus for automotive power protection aluminum, comprising:

[0006] Mixing chamber;

[0007] A swivel tube is axially rotatably disposed within the mixing chamber and configured to perform random intermittent rotation;

[0008] Multiple stirring arms are vertically arranged on the outer wall of the spiral tube and equidistantly distributed along its axial direction, and work together with the spiral tube to form a circumferential shear flow in the mixing chamber;

[0009] Multiple guides are equidistantly arranged along the axial direction of the corresponding stirring tube arm and can be independently rotated and connected to the outer wall of the stirring tube arm. When the vortex tube is not started, the spray end of each guide is parallel to the axial direction of the vortex tube.

[0010] During the intermittent switching of the random intermittent rotation of the vortex tube, the injection end of each guide tube forms an instantaneous deflection around the outer wall of the stirring tube arm without a predetermined angle, creating a spatiotemporally coupled chaotic mixing effect in the mixing chamber.

[0011] Preferably, the radial dimension of the spiral tube is greater than the radial dimension of each of the stirring tube arms, and the ratio of their radial dimensions is 4:1.

[0012] Preferably, each of the stirring tube arms extends radially and uniformly from the outer wall of the vortex tube, forming a radial flow channel structure extending axially together with the vortex tube, which serves as the central axis.

[0013] Preferably, the axial spacing between adjacent guides is less than the effective spray length of each spray end.

[0014] Preferably, the inner wall of the mixing chamber protrudes inward to form an axially extending thread.

[0015] By employing the above technical solution, this utility model provides a production apparatus for automotive power protection aluminum, which has at least the following beneficial effects:

[0016] This invention couples the random intermittent rotation of the swirl tube with the instantaneous deflection of the guide at the moment of the rotational interval, without a predetermined angle. This allows the additive to be dynamically injected into the shear flow field of the mixing chamber at random time points and in random spatial directions, thereby forming a spatiotemporally coupled chaotic mixing effect in the mixing chamber, which significantly improves the mixing uniformity and efficiency of the additive and the raw materials. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a partial three-dimensional structural schematic diagram of the present invention;

[0020] Figure 3 This is a three-dimensional structural diagram of the stirring tube arm of this utility model;

[0021] Figure 4 This is a schematic diagram of the deflection state of an individual guide of this utility model.

[0022] In the diagram: 1. Mixing chamber; 11. Threaded rib; 2. Swirl tube; 3. Stirring tube arm; 4. Guide. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please refer to Figures 1-4 This embodiment proposes a production apparatus for automotive power protection aluminum, comprising:

[0025] Mixing chamber 1;

[0026] The swivel tube 2 is axially rotatable within the mixing chamber 1 and is configured to perform random intermittent rotation;

[0027] Multiple stirring tube arms 3 are vertically arranged on the outer wall of the spiral tube 2 and are equidistantly distributed along its axial direction. They work together with the spiral tube 2 to form a circumferential shear flow in the mixing chamber 1.

[0028] Multiple guides 4 are equidistantly arranged along the axial direction of the corresponding stirring tube arm 3, and can be independently rotated and connected to the outer wall of the stirring tube arm 3. When the vortex tube 2 is not started, the spray end of each guide 4 is parallel to the axial direction of the vortex tube 2.

[0029] During the intermittent switching of the random intermittent rotation of the vortex tube 2, the injection ends of each guide 4 form an instantaneous deflection around the outer wall of the stirring tube arm 3 without a predetermined angle, creating a spatiotemporal coupled chaotic mixing effect in the mixing chamber 1.

[0030] Specifically, the mixing process begins with the rotation of the vortex tube 2. When the external drive system (such as a motor and gear set) drives the vortex tube 2 to rotate, the multiple stirring arms 3 fixed on it move in a circular motion, shearing and pushing the raw materials within the mixing chamber 1, forming a relatively stable basic circular shear flow centered on the axial direction. During this process, the vortex tube 2 does not rotate continuously at a uniform speed, but is controlled by an external random intermittent drive controller, performing random intermittent rotation. This makes the duration and switching moments of rotation and stopping random or pseudo-random. This driving method introduces non-periodicity in the time dimension; that is, during the rotation phase, the basic shear flow is established and maintained; at the instant of stopping, the driving force disappears, the flow field begins to decay due to inertia, and the movement of fluid micro-clusters tends to become chaotic; at the instant of starting, the power is suddenly applied, and the flow field is drastically reconstructed. This periodic cycle of establishment-decay-reconstruction has a random frequency and duration, thus fundamentally breaking the steady-state flow pattern of traditional continuous stirring, keeping the flow field in a controlled, non-equilibrium dynamic change.

[0031] The additive inlet pipe guides the additive through a rotatable connection to the inlet at the top of the swirl tube 2. The additive flows through the channels inside the swirl tube 2 and the stirring arm 3, ultimately reaching each guide 4 and being axially sprayed at the spray end, integrating into the basic flow field. It should be noted that an outlet with a circumferential angle not exceeding 170° is provided on the outer wall of the stirring arm 3 at the corresponding rotatable installation location of the guide 4. Figure 3As shown. At the instant the vortex tube 2 starts accelerating, the vortex tube 2 and the stirring tube arm 3 suddenly accelerate. Due to the inertial lag of the center of mass of the guide 4, and at the same time, the relatively stationary or low-speed fluid around it generates a huge instantaneous resistance on the spray end of the guide 4. The coupling effect of the inertial torque and the fluid resistance torque overcomes the holding force of the guide 4, driving the guide 4 to rotate and causing the spray end to deflect instantaneously without a predetermined angle, magnitude, or direction. At the instant the vortex tube 2 stops decelerating, the vortex tube 2 stops abruptly, the stirring tube arm 3 decelerates, and the guide 4 tends to continue moving due to inertia. At the same time, the fluid fluctuations in the mixing chamber 1 exert irregular forces on the guide 4. At this time, gravity becomes the dominant restoring force. However, under the disturbance of the fluid fluctuations, the rotational recovery process of the guide 4 is not a straight drop, but is accompanied by random oscillations.

[0032] In the above scheme, the instantaneous force state of each guide 4 is determined by its position, local flow field, and subtle processing differences, making it unique and random. Therefore, each start-up and shutdown of all guides 4 generates a completely new set of instantaneous directions that are irregularly distributed in three-dimensional space. This transforms the direction of the additive jet from a fixed axis into a series of rapidly changing dynamic vectors covering a wide range of spatial angles. Through the continuous implementation of the above working principle, macroscopically, the random intermittent shear flow continuously disrupts the overall structure of the material; microscopically, the randomly oriented additive jet achieves multi-dimensional, dead-angle-free active dispersion. The coupling of these two aspects produces a chaotic mixing effect, solving the problem of uniform additive dispersion and significantly improving the product performance and production efficiency of automotive power protection aluminum.

[0033] The radial dimension of the spiral tube 2 is larger than the radial dimension of each stirring tube arm 3, and the ratio of their radial dimensions is 4:1.

[0034] Furthermore, such as Figure 1 and Figure 2 As shown, the selection of the ratio value 4 is directly related to the actual number of stirring tube arms 3. The random deflection action of each guide 4 at the moment of starting and stopping the swirl tube 2 depends on the instantaneous coupling effect of its internal fluid pressure and external fluid resistance. When the swirl tube 2 starts or stops randomly, the fluid inertial force inside it will generate a pressure impact on the entire pipeline. Since the cross-sectional area of ​​the swirl tube 2 is large enough, it can effectively buffer and absorb this pressure fluctuation, avoiding the pressure pulse from being amplified or distorted during the distribution process. This makes the pressure transmitted to the root of each stirring tube arm 3 almost synchronous and equal in amplitude, thereby ensuring that all guides 4 installed on each stirring tube arm 3 can respond to the fluid force at the same time and with similar force, realizing the synchronous triggering of action in the entire range, forming a coordinated spatial random pointing array, and thus stimulating an effective chaotic mixing effect.

[0035] Each stirring tube arm 3 extends radially from the outer wall of the spinning tube 2, forming a radial flow channel structure that extends axially together with the spinning tube 2, which serves as the central axis.

[0036] Furthermore, such as Figure 2 As shown, the guides 4 installed on each stirring tube arm 3 are naturally discretely distributed throughout the mixing space due to the radial distribution of the carrier stirring tube arms 3. When the guides 4 synchronously deflect randomly and spray, it is equivalent to simultaneously exciting multiple random secondary disturbance sources at multiple radial and circumferential positions in the flow field. This multi-source, distributed disturbance mode can more quickly and thoroughly excite vortices of different scales in the flow field and make them interfere with each other, thereby exponentially improving the chaos and mixing efficiency of the flow field.

[0037] The axial spacing between adjacent guides 4 is less than the effective spray length of each spray end.

[0038] Furthermore, such as Figure 2 As shown, setting the axial spacing of adjacent guides 4 to be less than their effective spray length is not only to ensure simple coverage, but its core effect is to eliminate the mixing blind zone and create a dynamic overlapping interference zone for enhancing micro-mixing. Through coupling with the core features of random deflection, discrete random point disturbances are integrated into a coherent axial random disturbance band.

[0039] The inner wall of the mixing chamber 1 protrudes inward to form an axially extending threaded rib 11.

[0040] Furthermore, such as Figure 1 As shown, the presence of the threaded rib 11 transforms the stopping phase from a passive mixing decay period into a secondary mixing period that still contributes to active mixing, thereby improving the mixing time utilization rate of the entire random intermittent cycle. Based on the randomness constituted by the start-stop sequence and the mechanical response of the guide 4, the flow structure randomness generated by the interaction between the geometry of the wall threaded rib 11 and the decaying flow field is added, making the excitation sources of the chaotic mixing effect more diverse and persistent. The axially extending threaded rib 11 promotes momentum exchange and mixing of the fluid in the axial direction. Combined with the axial spacing design of the guide 4, this further enhances the uniformity of axial mixing and prevents material stratification at the axial level. By precisely targeting the blank period of power interruption in random intermittent drive, and utilizing fluid inertia and geometric design to transform it into a beneficial continuous disturbance, the spatiotemporally coupled chaotic mixing effect is ensured to be excited, maintained, and even strengthened throughout the entire operation of the device (including start-up, rotation, and shutdown), significantly improving the lower limit and stability of the overall mixing efficiency and uniformity.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A production apparatus for automotive power protection aluminum, characterized in that, include: Mixing chamber; A swivel tube is axially rotatably disposed within the mixing chamber and configured to perform random intermittent rotation; Multiple stirring arms are vertically arranged on the outer wall of the spiral tube and equidistantly distributed along its axial direction, and cooperate with the spiral tube to form a circumferential shear flow in the mixing chamber; Multiple guides are equidistantly arranged along the axial direction of the corresponding stirring tube arm and can be independently rotated and connected to the outer wall of the stirring tube arm. When the vortex tube is not started, the spray end of each guide is parallel to the axial direction of the vortex tube. During the intermittent switching of the random intermittent rotation of the vortex tube, the injection end of each guide tube forms an instantaneous deflection around the outer wall of the stirring tube arm without a predetermined angle, creating a spatiotemporally coupled chaotic mixing effect in the mixing chamber.

2. The production apparatus for automotive power protection aluminum according to claim 1, characterized in that, The radial dimension of the spiral tube is greater than the radial dimension of each of the stirring tube arms, and the ratio of their radial dimensions is 4:

1.

3. The production apparatus for automotive power protection aluminum according to claim 2, characterized in that, Each of the stirring tube arms extends radially and uniformly from the outer wall of the vortex tube, forming a radial flow channel structure extending axially together with the vortex tube, which serves as the central axis.

4. The production apparatus for automotive power protection aluminum according to claim 3, characterized in that, The axial spacing between adjacent guides is less than the effective spray length of each spray end.

5. The production apparatus for automotive power protection aluminum according to claim 1, characterized in that, The inner wall of the mixing chamber protrudes inward to form axially extending threaded ribs.

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