Movable lifting type molten aluminum viscosity testing and stirring device

Abstract

The utility model belongs to the technical field of fluid measuring instruments, and discloses a movable lifting type molten aluminum viscosity testing and stirring device which comprises a base, the base is a cuboid frame, a plurality of moving devices are installed at the bottom of the cuboid frame, and a sliding mechanism is installed on the side face of the cuboid frame; the lifting device comprises a supporting cross beam and a plurality of telescopic rods, the two ends of the supporting cross beam are installed above the cuboid frame through the telescopic rods, and a stirring device and a testing device are installed on the supporting cross beam. According to the technical scheme, flexible movement is achieved through the universal wheels, the telescopic rod is arranged to adjust the measuring height, the display screen and the button are integrated to simplify operation, the high-precision torque sensor is adopted to guarantee the measuring precision, and portability, adaptability and accuracy are achieved at the same time.

Description

A mobile lifting aluminum liquid viscosity testing and stirring device Technical Field

[0001] This utility model belongs to the field of fluid measurement instrument technology, and in particular relates to a mobile lifting aluminum liquid viscosity testing and stirring device. Background Technology

[0002] Viscosity is an important physical property of fluids, with wide applications in petroleum, chemical, food, and pharmaceutical industries. Traditional viscometers are typically bulky, heavy, and have a fixed height, making them unsuitable for measurement needs in various scenarios. For example, in a laboratory setting, when measuring samples at different heights, traditional viscometers require external supports or other tools for height adjustment, which is cumbersome and inconsistent in accuracy. Furthermore, the limited mobility of traditional viscometers in field measurements restricts their application.

[0003] The existing technology patent, CN206804474U, entitled "A Viscometer," reduces connection wear and avoids the problem of unstable rotor rotation affecting measurement data due to loose connection between the rotor and the rotating head. However, this viscosity measuring device does not have a movable and lifting function.

[0004] During the smelting of aluminum alloys, the reaction of aluminum with water or oxygen in the air may produce harmful gases or solid particulate impurities. These impurities can cause a series of quality problems such as porosity, inclusions, and slag contamination during subsequent deep processing and casting. Therefore, it is necessary to refine and purify the molten aluminum. Current slag removal processes for molten aluminum typically rely on manually operated stirring carts, but this method has many drawbacks, such as low stirring efficiency, difficulty in fixing the equipment, uneven mixing of the molten aluminum, high risk of burns to operators, and significant safety hazards. In addition, this process is labor-intensive, cumbersome, and affects overall production efficiency.

[0005] Existing utility model patent CN206676332U, entitled "A Lifting-Type Aeration Stirring Device for Aluminum Liquid Stirring," discloses an aluminum liquid stirring device. This device uses a bidirectional motor drive. When the motor rotates, it drives a lead screw to rotate, causing a nut to rise and fall within a polygonal tube, thereby pushing the stirring shaft and stirring paddle to move longitudinally. A collar is rotatably connected to the stirring shaft, and a slider on the lead screw limits the relative rotation between the lead screw and the stirring shaft, allowing the stirring paddle to rotate simultaneously during the lifting and lowering process, forming vortices and vertical convection to enhance the stirring effect. Although this technical solution achieves the lifting and lowering adjustment of the stirring paddle, the device is inconvenient to move, affecting its applicability.

[0006] Existing patent CN222389891U, entitled "An Aluminum Liquid Stirring Device," optimizes the space utilization of the work platform through the design of a rotary component, reducing operational limitations. Simultaneously, it employs lifting and sliding components, allowing the rotary component to slide up and down, thereby achieving stirring of aluminum liquid at different depths. However, this device suffers from shortcomings in mobility, affecting its practicality. Summary of the Invention

[0007] The purpose of this invention is to provide a mobile lifting aluminum liquid viscosity testing and stirring device to solve the problems existing in the prior art.

[0008] To achieve the above objectives, this utility model provides a mobile lifting aluminum liquid viscosity testing and stirring device, comprising:

[0009] The base is a cuboid frame. Several moving devices are installed at the bottom of the cuboid frame. A slide rail is installed on the bottom side frame of the cuboid frame, and a sliding mechanism is installed inside the slide rail.

[0010] A lifting device, comprising a support beam and several telescopic rods, wherein the two ends of the support beam are mounted on the upper part of the cuboid frame via the telescopic rods, and a stirring device and a testing device are mounted on the support beam.

[0011] Optionally, the moving device may employ casters.

[0012] Optionally, the testing device includes a first motor, a rotor, a rotor connector, and a viscometer. The viscometer and the first motor are both installed below the support beam. The viscometer is also supported by the sliding structure. The lower part of the viscometer is connected to the rotor connector and the rotor in sequence. The rotor connector is electrically connected to the first motor.

[0013] Optionally, the sliding structure includes a viscometer support rod and a sliding rod. The bottom end of the viscometer support rod is slidably disposed in the slide rail, and the sliding rod is installed on one side of the top end of the viscometer support rod. The sliding rod is used to support the viscometer.

[0014] Optionally, the viscometer integrates a torque sensor, a data processing module, a display screen, and several operation buttons.

[0015] Optionally, the stirring device includes a second motor, a stirring rod connector, a stirring head connector, and a stirring head. The stirring rod connector is mounted on the support beam. One end of the stirring rod connector is connected to the second motor for transmission, and the other end is connected to the stirring head connector. The stirring head is disposed below the stirring head connector.

[0016] Optionally, the stirring head may be a fan-shaped stirring head.

[0017] The technical effects of this utility model are as follows:

[0018] (1) The bottom of this utility model is equipped with casters, which makes it convenient for users to move the viscometer to different positions for measurement, and is especially suitable for on-site measurement.

[0019] (2) The height of this utility model is adjustable. The height of the measuring unit can be easily adjusted by the telescopic rod lifting mechanism to meet the measurement needs of samples of different heights and improve the measurement accuracy.

[0020] (3) This utility model uses a high-precision torque sensor and a data processing module to ensure the accuracy of the measurement results. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0023] Figure 1 is a schematic diagram of the overall structure after the viscosity testing unit is installed in an embodiment of this utility model.

[0024] Figure 2 is a schematic diagram of the overall structure after the stirring unit is installed in an embodiment of this utility model;

[0025] Figure 3 is a schematic diagram of the fan-shaped stirring head in an embodiment of this utility model.

[0026] Labeling Explanation: 1. Caster wheel; 2. Sliding rod; 3. Support frame; 4. Rotor; 5. Rotor connector; 6. Viscometer support rod; 7. Telescopic rod; 8. First motor; 9. Viscometer; 10. Linear guide rail; 11. Second motor; 12. Stirring rod connector; 13. Stirring head connector; 14. Stirring head. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0028] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0030] The terms “include,” “including,” “have,” “contain,” etc., used in this article are all open-ended terms, meaning that they include but are not limited to.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0033] As shown in Figures 1-3, this embodiment provides a mobile lifting aluminum liquid viscosity testing and stirring device, including:

[0034] The base is a cuboid frame, with several moving devices installed at the bottom of the cuboid frame and a sliding mechanism installed on the side of the cuboid frame; one side of the bottom of the cuboid frame is open.

[0035] The lifting device includes a support beam and several telescopic rods 7. The two ends of the support beam are installed above the cuboid frame through the telescopic rods 7. A stirring device and a testing device are installed on the support beam.

[0036] The device includes a base, a sliding mechanism, a measuring unit, a viscometer 9, a rotor 4 replacement mechanism, and a stirring unit. The base is equipped with casters 1 for easy movement and fixation. A lifting mechanism is mounted on the base, and the measuring unit, including a rotor 4, a first motor 8, and a viscometer 9, is mounted on the lifting mechanism. The viscometer 9 integrates a torque sensor for measuring fluid viscosity. The viscometer 9 also integrates a display screen and control buttons for controlling its on / off operation and measurement, and is equipped with a data processing module to process the measurement data. The rotor 4 replacement mechanism is mounted on the measuring unit and includes a rotor 4 connector connected to the output shaft of the drive motor and a quick connector between the rotor 4 connector and the rotor 4, allowing for convenient and quick replacement of rotors 4 of different specifications to meet the measurement needs of fluids with different viscosity ranges. The viscometer 9 portion of the device can be replaced with a stirring unit, which includes a stirring rod connector 12, a stirring body, a stirring head connector 13, and a stirring head 14. The stirring unit slides up and down via the lifting assembly, enabling stirring of molten aluminum at different depths. This invention offers advantages such as portability, height adjustment, ease of operation, high measurement accuracy, and replaceable rotor 4, making it suitable for fluid viscosity measurement in various scenarios, including laboratories and field operations. Furthermore, this embodiment features a stable structure, is simple and convenient to use, ensures operational safety, avoids potential hazards such as aluminum molten metal splashing and burns to operators, guarantees uniform mixing of the aluminum molten metal, reduces worker workload, and improves work efficiency.

[0037] The base unit includes: casters 1, sliding rods 2, viscometer support rods 6, linear guide rails 10, support frames 3, and telescopic rods 7.

[0038] The bottom of the base support frame 3 is equipped with 4 casters 1.

[0039] The measuring unit includes: rotor 4, rotor connector 5, and viscometer 9 (including LED display and operation buttons).

[0040] The power unit includes: a first motor 8 and a second motor 11.

[0041] The base has a slide rail at the bottom of the side frame, and a viscometer support rod 6 is slidably installed in the slide rail. The slide rod 2 is connected to the viscometer support frame 3.

[0042] The top flat frame of the base is equipped with slide rails along its wide side, and telescopic rods 7 are installed inside the slide rails. The tops of each telescopic rod 7 are connected by a supporting beam. At the bottom of the supporting beam are a viscometer 9 and a first motor 8. The lower part of the viscometer 9 is connected to a rotor connector 5 and a rotor 4. The measuring unit can also be replaced with a stirring unit.

[0043] The stirring unit includes: a second motor 11, a stirring rod connector 12, a stirring head connector 13, and a stirring head 14.

[0044] The rotor 4 is located directly below the viscometer 9 and the rotor connector 5, and the rotor 4 and the rotor connector 5 are connected to each other. Different rotors 4 can be disassembled through the rotor connector 5.

[0045] Furthermore, the rotor 4 of the measuring unit is inserted into the fluid being measured; the first motor 8 drives the rotor 4 to rotate; the torque sensor measures the torque experienced by the rotor 4 during rotation; and the display screen shows the measurement results and the operating interface. Control buttons control the on / off, lifting, and measurement functions of the viscometer 9. Additionally, the viscometer in the device can be replaced with a stirring rod to achieve the stirring function for the molten aluminum.

[0046] The sliding mechanism includes a viscometer support frame 3 for adjusting the height of the viscometer. The base can also slide back and forth via casters 1. The sliding mechanism includes a linear guide rail 10, a sliding rod 2, and the viscometer support frame 3. The sliding rod 2 is connected to the top of the viscometer support frame 3.

[0047] Implementable sliding mechanism can adopt any of the following structures: Screw-nut mechanism: The screw is driven to rotate by rotating a handwheel, causing the nut to move up and down, thereby adjusting the height of the measuring unit. Hydraulic lifting mechanism: The piston rod is driven to extend and retract by a hydraulic cylinder, thereby adjusting the height of the measuring unit. Electric push rod mechanism: The push rod is driven to extend and retract by a motor, thereby adjusting the height of the measuring unit.

[0048] The measuring unit can be replaced with a stirring unit as needed.

[0049] The stirring rod connector 12 in the stirring unit is connected to the second motor 11 and has a threaded structure. One end has a nut, and the other end is connected to the stirring head connector 13 via a thread, thereby enabling quick replacement of different types of stirring heads 14 to meet different experimental needs.

[0050] The technical solution of the present invention will be further described below with reference to specific embodiments.

[0051] The following description, in conjunction with the specific implementation process, further illustrates this embodiment.

[0052] Viscosity testing method:

[0053] (1) Equipment and material preparation:

[0054] Sample Preparation: Place the material to be tested into a high-temperature resistant crucible, ensuring the material surface is flat and free of bubbles or impurities. Select a matching crucible material (e.g., graphite, ceramic, or metal alloy) based on the material properties. Furnace Preheating: Start the vertical furnace, set the target temperature, and begin heating, maintaining a stable flow of protective gas (e.g., nitrogen or argon) within the furnace. Rotor Adaptation: Select a matching rotor material and shape based on the melt characteristics (e.g., corrosivity, viscosity range). Install and connect rotor 4 via rotor connector 5, check the connection stability, and complete the preheating procedure. Measurement System Positioning: Equipment Movement and Alignment: Move the viscometer 9 above the furnace opening, adjusting its position using the slide rails and lifting mechanism to ensure the centerline of rotor 4 is perpendicular to the melt surface.

[0055] (2) Immersion depth control:

[0056] The rotor 4 is slowly lowered in stages; coarse adjustment stage: quickly approach the liquid surface to a safe distance (about 10mm); fine adjustment stage: lower it millimeter by millimeter, and monitor the contact status in real time through torque feedback; after the rotor 4 is fully immersed, let it stand for 1-2 minutes to allow the melt flow to stabilize.

[0057] (3) Measurement execution:

[0058] Parameter setting and startup; select test mode (constant speed, shear rate scan or temperature gradient test); start the corresponding motor, initially using low speed rotation (e.g., 5-10 rpm), observe data stability; dynamic monitoring: monitor torque, temperature and rotor vibration data in real time, if abnormal fluctuations occur (e.g., sudden increase in torque or temperature deviation), immediately pause and investigate the cause.

[0059] (4) Termination and Maintenance:

[0060] After the rotor 4 is recovered and the measurement is completed, it is slowly lifted at a constant speed to avoid molten metal splashing or wire drawing. The rotor 4 is moved to a cleaning station and surface residues are immediately removed (such as by soaking in high-temperature molten salt or ultrasonic cleaning). The equipment is reset and the heating system is turned off. Protective gas is kept flowing until the furnace temperature drops to a safe range. The wear of the slide rails and lifting mechanism is checked, and lubricant is added or worn parts are replaced.

[0061] (5) Data Recording:

[0062] Export the test curves and key parameters (such as apparent viscosity and shear thinning index), and indicate the temperature, rotation speed and environmental conditions.

[0063] Aluminum liquid stirring method:

[0064] The process of stirring the molten aluminum is similar to that of viscosity testing; simply replace the viscometer 9 with a stirring rod before testing.

[0065] A method for testing the viscosity of molten aluminum at 800℃ using a mobile lifting aluminum molten metal viscosity test and stirring device in conjunction with a pit furnace includes the following steps:

[0066] S1: Move the viscosity testing device to the opening of the pit furnace, positioning it directly above the sample to be tested. Set the pit furnace heating program to raise the furnace temperature to 800 ℃ and maintain it stable.

[0067] S2: After the furnace temperature has stabilized for 5 minutes, slowly insert the viscometer rotor 4 into the molten aluminum to avoid bubble formation or excessive stirring. Perform viscosity measurements, collect data multiple times, and calculate the average value to improve measurement accuracy.

[0068] S3: After the experiment, slowly remove the measuring rotor 4 and promptly clean any adhering molten aluminum residue. Turn off the viscometer 9 and ensure the equipment cools down safely to extend its service life and ensure the accuracy of subsequent tests.

[0069] A method for homogenizing molten aluminum at 800°C using a mobile lifting aluminum molten viscosity test and stirring device in conjunction with a pit furnace includes the following steps:

[0070] S1: Move the stirring device to the furnace opening, positioning it directly above the sample to be tested. Set the furnace heating program to raise the furnace temperature to 800 ℃ and maintain it stable.

[0071] S2: After the furnace temperature has stabilized for 5 minutes, slowly insert the stirring rod into the molten aluminum to avoid the generation of bubbles or excessive stirring.

[0072] S3: After the experiment, slowly remove the measuring probe or rotating parts, and promptly clean any adhering molten aluminum residue. Turn off the viscometer 9 and ensure the equipment cools down safely to extend its service life and ensure the accuracy of subsequent tests.

[0073] Compared with the prior art, this embodiment increases its portability and the viscometer can be adapted to different high-temperature vertical furnaces. Through the above-described device, this embodiment achieves:

[0074] (1) Mobility: The bottom is equipped with casters, which makes it convenient for users to move the viscometer to different positions for measurement, and is especially suitable for on-site measurement.

[0075] (2) Height adjustable: The height of the measuring unit can be easily adjusted by the telescopic rod lifting mechanism to meet the measurement needs of samples of different heights and improve measurement accuracy.

[0076] (3) Easy to operate: The viscometer integrates a display screen and control buttons, and the user interface is user-friendly and convenient for users to operate.

[0077] (4) High measurement accuracy: High-precision torque sensor and data processing module are used to ensure the accuracy of measurement results.

[0078] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A mobile lifting aluminum liquid viscosity testing and stirring device, characterized in that, Includes: a base, which is a cuboid frame, with several moving devices installed at the bottom of the cuboid frame, and a slide rail installed on the bottom side frame of the cuboid frame, with a sliding mechanism installed inside the slide rail; a lifting device, which includes a supporting beam and several telescopic rods (7), with both ends of the supporting beam installed above the cuboid frame through the telescopic rods (7), and a stirring device and a testing device installed on the supporting beam.

2. The mobile lifting aluminum liquid viscosity testing and stirring device according to claim 1, characterized in that, The mobile device uses casters (1).

3. The mobile lifting aluminum liquid viscosity testing and stirring device according to claim 1, characterized in that, The testing device includes a first motor (8), a rotor (4), a rotor connector (5), and a viscometer (9). The viscometer (9) and the first motor (8) are both installed below the support beam. The viscometer (9) is also supported by a sliding structure. The lower part of the viscometer (9) is connected to the rotor connector (5) and the rotor (4) in sequence. The rotor connector (5) is electrically connected to the first motor (8).

4. The mobile lifting aluminum liquid viscosity testing and stirring device according to claim 3, characterized in that, The sliding structure includes a viscometer support rod (6) and a sliding rod (2). The bottom end of the viscometer support rod (6) is slidably disposed in the slide rail. The sliding rod (2) is installed on one side of the top end of the viscometer support rod (6). The sliding rod (2) is used to support the viscometer (9).

5. The mobile lifting aluminum liquid viscosity testing and stirring device according to claim 3, characterized in that, The viscometer (9) integrates a torque sensor, a data processing module, a display screen, and several operation buttons.

6. The mobile lifting aluminum liquid viscosity testing and stirring device according to claim 1, characterized in that, The stirring device includes a second motor (11), a stirring rod connector (12), a stirring head connector (13), and a stirring head (14). The stirring rod connector (12) is mounted on the support beam. One end of the stirring rod connector (12) is connected to the second motor (11) for transmission, and the other end is connected to the stirring head connector (13). The stirring head (14) is arranged below the stirring head connector (13).

7. A mobile lifting aluminum liquid viscosity testing and stirring device according to claim 6, characterized in that, The stirring head (14) is a fan-shaped stirring head.

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